CN115029949A - Heated air circulation formula drying equipment for air penetration paper machine - Google Patents
Heated air circulation formula drying equipment for air penetration paper machine Download PDFInfo
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- CN115029949A CN115029949A CN202210791526.0A CN202210791526A CN115029949A CN 115029949 A CN115029949 A CN 115029949A CN 202210791526 A CN202210791526 A CN 202210791526A CN 115029949 A CN115029949 A CN 115029949A
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- 238000001035 drying Methods 0.000 title claims abstract description 149
- 230000035515 penetration Effects 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 107
- 230000000149 penetrating effect Effects 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 13
- 238000013459 approach Methods 0.000 claims description 7
- 239000010963 304 stainless steel Substances 0.000 claims description 6
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 6
- 229910000870 Weathering steel Inorganic materials 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 239000000835 fiber Substances 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/18—Drying webs by hot air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses hot air circulating type drying equipment for an air penetration type paper machine, and belongs to the technical field of paper machines. The method is characterized in that: the drying device comprises a drying rotary drum, wherein a drying air hood is arranged outside the drying rotary drum in a wrapping manner; a main air inlet is respectively arranged on the dry end air cover and the wet end air cover, and the main air inlet is connected with a hot air source; arranging inner lining plates in the dry end gas hood and the wet end gas hood, wherein the inner lining plates are clamped to form a wind guide groove, round wind supply holes are formed in the working surfaces of the dry end gas hood and the wet end gas hood, which face the drying rotary drum, one end of the wind guide groove is communicated with a main wind inlet, and the other end of the wind guide groove is communicated with a plurality of round wind supply holes; the drying rotary drum is provided with drying air holes; one end of the drying rotary drum is provided with a negative pressure suction device. This device stoving gas hood cooperation drying drum and negative pressure suction device use, promoted drying efficiency by a wide margin, even if dry thicker paper, also can realize the purpose of high-speed operation stoving.
Description
Technical Field
The invention belongs to the technical field of paper machines, and particularly relates to hot air circulating type drying equipment for an air penetration type paper machine.
Background
The paper is a thin sheet made of plant fiber and is an essential daily article in life of people. The paper machine is a core device for producing paper, and is a complete set of device assembly which is linked with the paper pulp forming sections, wherein the device assembly comprises a head box, a net part, a press part, a dryer, a calender, a paper winder, a transmission part and the like. The drying is a key process in the process of producing filter paper by a paper machine and is completed by a drying mechanism in the paper machine. In the paper making process, the forming wire (also called a blanket wire) is burdened with the tasks of making good interweaving of pulp fibers, obtaining a well-organized web, and dewatering the already formed web to a certain dryness, and the dewatering quality and the uniformity of the web directly affect the processing of the next process of the web, especially in the dewatering process of the web called a drying process, which is a critical process related to the quality of the finished paper.
In the prior art, an external air hood is required for a TAD (air through) drying mode, and the external air hood can spray hot air flow onto a drying drum to take away moisture in paper, so as to achieve the purpose of quick drying. However, in the conventional apparatus, the air flow ejected from the air hood cannot effectively penetrate through the paper and the forming wire, and particularly, when the paper with a large thickness is dried, the dehydration rate of the paper cannot meet the preset requirement due to insufficient penetrating power.
In addition, in the traditional drying mode, the drying roller only rotates around the central shaft to realize drying and conveying operation, and the transverse direction of the drying roller is relatively static, so that the lower layer of pulp fibers can be deposited on the net surface of the forming net to form a compact layer under the condition that the pulp is relatively static in the transverse direction, and the continuous dehydration of the upper pulp layer is influenced. To the above-mentioned deficiency, people improve the structure of current papermaking forming wire portion, increase the device that shakes in the one end of the breast roll of papermaking forming wire portion promptly, thereby make drying drum drive the forming wire according to certain frequency and amplitude lateral motion, and then improve the dispersion degree of consistency and the dewatering performance of paper pulp fibre, however, current drying drum is when connecting the device that shakes, structural design is unreasonable, and difficult realization automatic amplitude control, especially can not in time adjust the frequency conversion or the variable amplitude operation that adapt to the device that shakes in equipment operation process.
Disclosure of Invention
The invention aims to provide hot air circulating type drying equipment for an air penetration type paper machine, so as to solve the technical problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a hot air circulation type drying device for an air penetration type paper machine comprises a drying rotary drum, wherein a drying air hood is arranged outside the drying rotary drum in a wrapping mode and comprises a dry end air hood and a wet end air hood, and the dry end air hood and the wet end air hood are both arranged on a main frame; a main air inlet is respectively arranged on the dry end gas cover and the wet end gas cover, and the main air inlet is connected with a hot air source; arranging inner lining plates in the dry-end gas hood and the wet-end gas hood, wherein the inner lining plates are clamped to form a wind guide groove, round wind supply holes are formed in the working surfaces of the dry-end gas hood and the wet-end gas hood, which face the drying rotary drum, one end of the wind guide groove is communicated with a main wind inlet, and the other end of the wind guide groove is communicated with a plurality of round wind supply holes; the drying rotary drum is provided with drying air holes; one end of the drying rotary drum is set as a transmission end, the other end of the drying air cover is set as an operation end, the transmission end is provided with a transmission mechanism, and the transmission mechanism can drive the drying air cover to rotate around the fixed shaft drum; and a negative pressure suction device is arranged at the transmission end.
Preferably, the negative pressure suction device comprises an air draft hood, and the air draft hood is arranged at the transmission end of the drying rotary drum; an air suction opening is formed in the air suction hood and is communicated with an air suction pump through an air suction pipe.
Preferably, the outer plate of the drying air hood is made of double-layer 304 stainless steel plates, the inner lining plate is made of double-layer weathering steel, and centrifugal glass fiber cotton heat insulation layers are arranged between the double-layer 304 stainless steel plates and between the double-layer weathering steel.
Preferably, the left end of the drying rotary drum is a transmission end, a transmission side cylinder cover is fixedly arranged at the transmission end, a transmission side shaft head is arranged at the left side of the transmission side cylinder cover, and transmission side through holes are formed in the transmission side cylinder cover and the transmission side shaft head in a penetrating manner; the right end of the drying rotary drum is an operation end, an operation end cylinder cover is arranged at the operation end, an operation side shaft head is arranged on the right side of the operation side cylinder cover, and operation side through holes are formed in the operation side cylinder cover and the operation side shaft head in a penetrating mode; two ends of the fixed shaft cylinder penetrate through the transmission side through hole and the operation side through hole towards two sides and are respectively inserted into the left fixed shaft seat and the right fixed shaft seat;
a transmission side bearing is sleeved outside the transmission side shaft head and is installed on a transmission side sliding block through the transmission side bearing, and the transmission side sliding block is arranged in a transmission side sliding groove of a transmission side bracket; the transmission side shaft head or the transmission side sliding block is connected with a shaker;
an operation side bearing is sleeved outside the operation side shaft head and is installed on an operation side sliding block through the operation side bearing, and the operation side sliding block is arranged in an operation side sliding groove of an operation side bracket;
the transmission mechanism comprises a rotation driving motor, a driven gear is sleeved outside a shaft head on the transmission side shaft, the driven gear is meshed with a driving gear, and the driving gear is arranged on a motor shaft of the rotation driving motor;
when the transmission driving motor is started, the transmission driving motor and the driven gear can be meshed with each other through the driving gear, and then the transmission side shaft head, the transmission side cylinder cover, the drying rotary drum, the operation side cylinder cover and the operation side shaft head are driven to synchronously rotate; meanwhile, the shaking device is started, and the transmission side shaft head, the transmission side cylinder cover, the drying rotary drum, the operation side cylinder cover and the operation side shaft head can be driven to reciprocate and move transversely along the fixed shaft barrel.
Preferably, the operating end cylinder cover is formed by hermetically splicing a plurality of movable sealing end plates; sealing strips are arranged between the exhaust hood and the drying rotary drum and between the operation end cylinder cover and the drying rotary drum.
Preferably, the drying device further comprises an amplitude modulation device, and the amplitude modulation device is arranged in the drying drum; the amplitude modulation device comprises an amplitude modulation inner cylinder and a screw amplitude modulation structure, the fixed shaft cylinder, the amplitude modulation inner cylinder and the drying rotary cylinder are coaxially arranged from inside to outside, more than one sleeve outer sleeve ring is sleeved outside the fixed shaft cylinder, the inner end of a support rod is radially arranged on the sleeve outer sleeve ring, and the outer end of the support rod is connected with the inner wall of the amplitude modulation inner cylinder; an inner cylinder through hole is formed in the amplitude-modulated inner cylinder; the screw amplitude modulation structure is respectively connected with a left amplitude modulation bracket and a right amplitude modulation bracket, the left amplitude modulation bracket is connected with a left side plate, the right amplitude modulation bracket is connected with a right side plate, and the left side plate and the right side plate are respectively arranged between the amplitude modulation inner cylinder and the drying rotary cylinder; the left side plate and the right side plate are both in 2/3-4/5 ring plate shapes.
Preferably, the screw amplitude modulation structure comprises a first adjusting screw, a second adjusting screw, a first nut, a second nut, a first chain wheel motor and a second chain wheel motor; a first left screw rod bearing seat and a second left screw rod bearing seat are arranged in the left end of the fixed shaft cylinder, and a first right screw rod bearing seat and a second right screw rod bearing seat are arranged at the right end of the fixed shaft cylinder; two ends of a first adjusting screw are respectively installed in a first left screw bearing seat and a first right screw bearing seat, and a first screw chain wheel is installed at the right end of the first adjusting screw penetrating through the first right screw bearing seat; two ends of a second adjusting screw are respectively installed in a second left screw bearing seat and a second right screw bearing seat, and a second screw chain wheel is installed at the right end of the second adjusting screw penetrating through the second right screw bearing seat; a chain wheel motor bracket is arranged at the right end of the fixed shaft cylinder penetrating through the operation side through hole, a first chain wheel motor and a second chain wheel motor are arranged on the chain wheel motor bracket, a first driving chain wheel and a second driving chain wheel are respectively sleeved on motor shafts of the first chain wheel motor and the second chain wheel motor, an annular first driving chain is sleeved on the first driving chain wheel and the first lead screw chain wheel, and an annular second driving chain is sleeved on the second driving chain wheel and the second lead screw chain wheel;
a first screw nut and a second screw nut are respectively sleeved on the first adjusting screw rod and the second adjusting screw rod; a first connecting rod through hole and a second connecting rod through hole are respectively formed in the side wall of the fixed shaft cylinder, a first connecting rod is arranged in the first connecting rod through hole, the inner end of the first connecting rod is connected and fixed with a first screw nut, and the outer end of the first connecting rod is connected with a left amplitude modulation bracket; a second connecting rod is arranged in the second connecting rod through hole, the inner end of the second connecting rod is connected and fixed with a second screw nut, and the outer end of the second connecting rod is connected with a right amplitude modulation bracket;
when the first chain wheel motor and the second chain wheel motor are started, the first adjusting screw rod and the second adjusting screw rod can be driven to rotate through the chain wheel transmission structure respectively; the first screw nut and the second screw nut are driven to relatively approach or relatively move away; simultaneously, the left amplitude modulation bracket and the right amplitude modulation bracket are driven to relatively approach or move away; and then the left side plate and the right side plate are adjusted to be close to or far away from each other, so that the amplitude adjustment of the drying rotary drum is realized.
Preferably, the left amplitude modulation bracket comprises a left shaft barrel lantern ring and a left moving pulley, the left shaft barrel lantern ring is sleeved outside the fixed shaft barrel, the number of the first connecting rods is three, and the number of the first connecting rod through holes is three; the inner ends of the three first connecting rods are connected with first nuts, and the outer ends of the three first connecting rods penetrate through the corresponding first connecting rod through holes respectively and then are connected with a left shaft barrel lantern ring; the three first connecting rods are arranged in a radial shape; a left moving pulley is fixed on the left shaft barrel lantern ring, a left pulley is installed on one side, close to the fixed shaft barrel, of the left moving pulley, and the left pulley is in rolling contact with the outer wall of the fixed shaft barrel; the left moving block is provided with the lower end of a vertical rod part of a L-shaped left supporting rod, and the upper end of the vertical rod part of the left supporting rod is connected with a horizontal rod part of the left supporting rod after passing through a left strip-shaped through hole formed in the inner sleeve; the left end of the transverse rod part of the left supporting rod is connected with the left side plate;
the right amplitude modulation bracket comprises a right shaft barrel sleeve ring and a right moving pulley, the right shaft barrel sleeve ring is sleeved outside the fixed shaft barrel, the number of the second connecting rods is three, and the number of the second connecting rod through holes is three; the inner ends of the three second connecting rods are connected with second nuts, and the outer ends of the three second connecting rods penetrate through the corresponding second connecting rod through holes respectively and then are connected with the right shaft barrel lantern ring; the three second connecting rods are arranged in a radial shape; a right moving pulley is fixed on the right shaft barrel lantern ring, a right pulley is installed on one side, close to the fixed shaft barrel, of the right moving pulley, and the right pulley is in rolling contact with the outer wall of the fixed shaft barrel; the lower end of a vertical rod part of a gamma-shaped right supporting rod is arranged on the right movable pulley, and the upper end of the vertical rod part of the right supporting rod passes through a right strip-shaped through hole formed in the inner sleeve and then is connected with a transverse rod part of the right supporting rod; the right end of the cross bar part of the right supporting rod is connected with the right side plate; the periphery of the left side plate is fixed with a left sealing strip through a left spring support arm; and the periphery of the right side plate is fixed with a right sealing strip through a right spring support arm.
Preferably, the number of the left amplitude modulation brackets is more than three, and the left amplitude modulation brackets are arranged around the fixed shaft barrel in an annular array; the number of the right amplitude modulation supports is more than three, and the right amplitude modulation supports are arranged around the fixed shaft barrel in an annular array.
Preferably, a large shaft sleeve incremental encoder is installed at the right end of the fixed shaft barrel through an encoder bracket.
Compared with the prior art, the invention has the beneficial effects that:
1. the device can realize the organic matching of the drying rotary drum and the drying air hood, and dry hot air is coated and sprayed on the surface of the drying rotary drum through the drying air hood at 270 degrees to dry the blanket net and paper supported by the blanket net; meanwhile, the air draft air pump of the negative pressure suction device is started, air flow in the drying rotary drum is drawn out through the air draft air hood, negative pressure internal environment is formed in the drying rotary drum, hot air can be sucked from the inside, penetrating power of the drying air flow is stronger, moisture is further taken away from paper, and moisture is discharged through the negative pressure suction device. This device stoving gas hood cooperation drying drum and negative pressure suction device use, promoted drying efficiency by a wide margin, even if dry thicker paper, also can realize the purpose of high-speed operation stoving.
2. The invention can make the forming net part (or called blanket net) support paper to be arranged around the drying rotary drum in an omega shape, and in the drying process, the drying rotary drum is driven to rotate by a transmission driving motor to provide power for the movement of the forming net part and the paper; meanwhile, the moisture in the paper can be taken away by the external air hood or the hot drying air flow introduced into the drying roller. When the drying roller rotates around the central axis, the shaking device is started, the transmission side shaft head, the transmission side cylinder cover, the drying roller, the operation side cylinder cover and the operation side shaft head can be driven to move transversely along the fixed shaft cylinder in a reciprocating manner, so that the paper fibers are uniformly distributed, and the drying speed is rapidly balanced.
The device can adapt to different amplitudes of the shaker by adjusting the amplitude modulation device. The specific adjustment mode is as follows: when the first chain wheel motor and the second chain wheel motor are started, the first adjusting screw rod and the second adjusting screw rod can be driven to rotate through the chain wheel transmission structure respectively; the first screw nut and the second screw nut are driven to relatively approach or relatively move away; simultaneously, the left amplitude modulation bracket and the right amplitude modulation bracket are driven to relatively approach or move away; then the left side plate and the right side plate are adjusted to be close to or far away from each other, so that the amplitude adjustment and limitation of the drying rotary drum are realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 in the direction A;
FIG. 3 is a schematic view of a drying drum;
FIG. 4 is a schematic structural diagram of an amplitude-modulated inner cylinder;
FIG. 5 is a schematic view of the installation structure of the amplitude modulation device in the drying drum;
FIG. 6 is a schematic diagram of a partial fitting structure of an amplitude modulation apparatus;
FIG. 7 is a schematic view of the structure of FIG. 6 in the direction B;
FIG. 8 is a schematic view of the structure of FIG. 6 in the direction of C-C;
FIG. 9 is a schematic view of a mounting and matching structure of the left amplitude modulation bracket and the left side plate;
in the figure: 1. a driven gear; 2. a driving gear; 3. a drive side bearing; 4. a movable side shaft head; 5. a drive side cylinder head; 6. a left side plate; 7. a left moving tackle; 8. drying the rotary drum; 9. amplitude modulation inner cylinder; 10. a support bar; 11. the sleeve is sleeved with an outer ring; 12. fixing the shaft barrel; 13. a right moving block; 14. a right side plate; 15. an operating end cylinder cover; 16. operating the side shaft head; 17. operating the side slide block; 18. a right fixed shaft seat; 19. an operation side bearing; 20. a first link is perforated; 21. a left strip-shaped through hole; 22. a transmission-side slider; 23. a left fixed shaft seat; 24. a left shaft sleeve ring; 25. a left pulley; 26. a second screw; 27. a second adjusting screw; 28. a first link; 29. a first screw nut; 30. a first adjusting screw; 31. a right shaft sleeve ring; 32. a second drive sprocket; 33. a first drive sprocket; 34. a first lead screw drive motor; 35. a second connecting rod through hole; 36. a first lead screw sprocket; 37. a second lead screw sprocket; 38. a second drive chain; 39. a first drive chain; 40. a second link; 41. an encoder support; 42. a large shaft sleeve incremental encoder; 44. A vertical rod part of the left support rod; 45. a crossbar portion of the left strut; 46. a left side sealing strip; 47. a left spring support arm; 48. a main frame; 49. a wet end gas hood; 50. a wind guide groove; 51. a circular air supply hole; 52. a main air inlet; 53. a dry end gas hood; 54. an air exhaust hood; 55. an air suction opening; 56. drying the air holes; 57. the inner cylinder is provided with a through hole.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.
Referring to fig. 1-9, the invention provides a heated air circulation drying device for an air penetration type paper making machine, which comprises a drying drum, wherein a drying air hood is wrapped outside the drying drum, the drying air hood comprises a dry end air hood and a wet end air hood, and the dry end air hood and the wet end air hood are both arranged on a main frame; a main air inlet is respectively arranged on the dry end air cover and the wet end air cover, and the main air inlet is connected with a hot air source; arranging inner lining plates in the dry end gas hood and the wet end gas hood, wherein the inner lining plates are clamped to form a wind guide groove, round wind supply holes are formed in the working surfaces of the dry end gas hood and the wet end gas hood, which face the drying rotary drum, one end of the wind guide groove is communicated with a main wind inlet, and the other end of the wind guide groove is communicated with a plurality of round wind supply holes; the drying rotary drum is provided with drying air holes; one end of the drying rotary drum is set as a transmission end, the other end of the drying air cover is set as an operation end, the transmission end is provided with a transmission mechanism, and the transmission mechanism can drive the drying air cover to rotate around the fixed shaft drum; and a negative pressure suction device is arranged at the transmission end.
The negative pressure suction device comprises an air draft hood, and the air draft hood is arranged at the transmission end of the drying rotary drum; an air suction opening is formed in the air suction hood and is communicated with an air suction pump through an air suction pipe.
The outer plate of the drying air hood is made of double-layer 304 stainless steel plates, the inner lining plate is made of double-layer weathering steel, and centrifugal glass fiber cotton heat-insulating layers are arranged between the double-layer 304 stainless steel plates and between the double-layer weathering steel.
The left end of the drying rotary drum is a transmission end, a fixed transmission side cylinder cover is arranged at the transmission end, a transmission side shaft head is arranged at the left side of the transmission side cylinder cover, and transmission side through holes are formed in the transmission side cylinder cover and the transmission side shaft head in a penetrating mode; the right end of the drying rotary drum is an operation end, an operation end cylinder cover is arranged at the operation end, an operation side shaft head is arranged on the right side of the operation side cylinder cover, and operation side through holes are formed in the operation side cylinder cover and the operation side shaft head in a penetrating mode; two ends of the fixed shaft cylinder penetrate through the transmission side through hole and the operation side through hole towards two sides and are respectively inserted into the left fixed shaft seat and the right fixed shaft seat;
a transmission side bearing is sleeved outside the transmission side shaft head and is arranged on a transmission side sliding block through the transmission side bearing, and the transmission side sliding block is arranged in a transmission side sliding groove of a transmission side bracket; the transmission side shaft head or the transmission side sliding block is connected with a shaker;
an operation side bearing is sleeved outside the operation side shaft head and is installed on an operation side sliding block through the operation side bearing, and the operation side sliding block is arranged in an operation side sliding groove of an operation side bracket;
the transmission mechanism comprises a rotation driving motor, a driven gear is sleeved outside a shaft head on the transmission side shaft, the driven gear is meshed with a driving gear, and the driving gear is arranged on a motor shaft of the rotation driving motor;
when the transmission driving motor is started, the driving gear and the driven gear can be meshed with each other, and then the transmission side shaft head, the transmission side cylinder cover, the drying rotary drum, the operation side cylinder cover and the operation side shaft head are driven to synchronously rotate; meanwhile, the shaking device is started, and the transmission side shaft head, the transmission side cylinder cover, the drying rotary drum, the operation side cylinder cover and the operation side shaft head can be driven to reciprocate and move transversely along the fixed shaft barrel.
The operating end cylinder cover is formed by hermetically splicing a plurality of movable sealing end plates; sealing strips are arranged between the exhaust hood and the drying rotary drum and between the operation end cylinder cover and the drying rotary drum.
The drying drum also comprises an amplitude modulation device which is arranged in the drying drum; the amplitude modulation device comprises an amplitude modulation inner cylinder and a screw amplitude modulation structure, the fixed shaft cylinder, the amplitude modulation inner cylinder and the drying rotary cylinder are coaxially arranged from inside to outside, more than one sleeve outer sleeve ring is sleeved outside the fixed shaft cylinder, the inner end of a support rod is radially arranged on the sleeve outer sleeve ring, and the outer end of the support rod is connected with the inner wall of the amplitude modulation inner cylinder; an inner cylinder through hole is formed in the amplitude-modulated inner cylinder; the screw amplitude modulation structure is respectively connected with a left amplitude modulation bracket and a right amplitude modulation bracket, the left amplitude modulation bracket is connected with a left side plate, the right amplitude modulation bracket is connected with a right side plate, and the left side plate and the right side plate are respectively arranged between the amplitude modulation inner cylinder and the drying rotary cylinder; the left side plate and the right side plate are both in 2/3-4/5 ring plate shapes.
The screw amplitude modulation structure comprises a first adjusting screw, a second adjusting screw, a first nut, a second nut, a first chain wheel motor and a second chain wheel motor; a first left screw rod bearing seat and a second left screw rod bearing seat are arranged in the left end of the fixed shaft cylinder, and a first right screw rod bearing seat and a second right screw rod bearing seat are arranged at the right end of the fixed shaft cylinder; two ends of a first adjusting screw are respectively installed in a first left screw bearing seat and a first right screw bearing seat, and a first screw chain wheel is installed at the right end of the first adjusting screw penetrating through the first right screw bearing seat; two ends of a second adjusting screw are respectively installed in a second left screw bearing seat and a second right screw bearing seat, and a second screw chain wheel is installed at the right end of the second adjusting screw penetrating through the second right screw bearing seat; a chain wheel motor bracket is arranged at the right end of the fixed shaft cylinder penetrating through the operation side through hole, a first chain wheel motor and a second chain wheel motor are arranged on the chain wheel motor bracket, a first driving chain wheel and a second driving chain wheel are respectively sleeved on motor shafts of the first chain wheel motor and the second chain wheel motor, an annular first driving chain is sleeved on the first driving chain wheel and the first lead screw chain wheel, and an annular second driving chain is sleeved on the second driving chain wheel and the second lead screw chain wheel;
a first screw nut and a second screw nut are respectively sleeved on the first adjusting screw rod and the second adjusting screw rod; a first connecting rod through hole and a second connecting rod through hole are respectively formed in the side wall of the fixed shaft cylinder, a first connecting rod is arranged in the first connecting rod through hole, the inner end of the first connecting rod is connected and fixed with a first screw nut, and the outer end of the first connecting rod is connected with a left amplitude modulation bracket; a second connecting rod is arranged in the second connecting rod through hole, the inner end of the second connecting rod is connected and fixed with a second screw nut, and the outer end of the second connecting rod is connected with a right amplitude modulation bracket;
when the first chain wheel motor and the second chain wheel motor are started, the first adjusting screw rod and the second adjusting screw rod can be driven to rotate through the chain wheel transmission structure respectively; the first screw nut and the second screw nut are driven to be relatively close to or relatively far away from each other; simultaneously, the left amplitude modulation bracket and the right amplitude modulation bracket are driven to relatively approach or move away; then the left side plate and the right side plate are adjusted to be close to or far away from each other, and the amplitude adjustment of the drying rotary drum is realized.
The left amplitude modulation bracket comprises a left shaft barrel lantern ring and a left moving pulley, the left shaft barrel lantern ring is sleeved outside the fixed shaft barrel, the number of the first connecting rods is three, and the number of the first connecting rod through holes is three; the inner ends of the three first connecting rods are connected with first nuts, and the outer ends of the three first connecting rods penetrate through the corresponding first connecting rod through holes respectively and then are connected with a left shaft barrel lantern ring; the three first connecting rods are arranged in a radial shape; a left moving pulley is fixed on the left shaft barrel lantern ring, a left pulley is installed on one side, close to the fixed shaft barrel, of the left moving pulley, and the left pulley is in rolling contact with the outer wall of the fixed shaft barrel; the left moving block is provided with a lower end of a vertical rod part of a reversed L-shaped left supporting rod, and the upper end of the vertical rod part of the left supporting rod passes through a left strip-shaped through hole formed on the inner sleeve and then is connected with a cross rod part of the left supporting rod; the left end of the transverse rod part of the left supporting rod is connected with the left side plate;
the right amplitude modulation bracket comprises a right shaft barrel lantern ring and a right moving pulley, the right shaft barrel lantern ring is sleeved outside the fixed shaft barrel, the number of the second connecting rods is three, and the number of the second connecting rod through holes is three; the inner ends of the three second connecting rods are connected with second nuts, and the outer ends of the three second connecting rods penetrate through the corresponding second connecting rod through holes respectively and then are connected with the right shaft barrel lantern ring; the three second connecting rods are arranged in a radial shape; a right moving pulley is fixed on the right shaft barrel lantern ring, a right pulley is installed on one side, close to the fixed shaft barrel, of the right moving pulley, and the right pulley is in rolling contact with the outer wall of the fixed shaft barrel; the lower end of a vertical rod part of a gamma-shaped right supporting rod is arranged on the right movable pulley, and the upper end of the vertical rod part of the right supporting rod passes through a right strip-shaped through hole formed in the inner sleeve and then is connected with a transverse rod part of the right supporting rod; the right end of the cross bar part of the right supporting rod is connected with the right side plate; the periphery of the left side plate is fixed with a left sealing strip through a left spring support arm; and the periphery of the right side plate is fixed with a right sealing strip through a right spring support arm.
The number of the left amplitude modulation brackets is more than three, and the left amplitude modulation brackets are arranged around the fixed shaft barrel in an annular array; the number of the right amplitude modulation brackets is more than three, and the right amplitude modulation brackets are arranged around the fixed shaft cylinder in an annular array.
And a large shaft sleeve incremental encoder is arranged at the right end of the fixed shaft barrel through an encoder bracket. The large shaft sleeve incremental encoder can meter the moving distance of the first screw nut and the second screw nut which are respectively driven by the first adjusting screw rod and the second adjusting screw rod in a rotating and rotating mode, and therefore the accurate regulation and control of the adjusting length are achieved.
The device can realize the organic matching of the drying rotary drum and the drying air hood, dry hot air is coated and sprayed on the surface of the drying rotary drum through the drying air hood at 270 degrees, and the drying operation is carried out on the blanket net and paper supported by the blanket net; meanwhile, the air draft pump of the negative pressure suction device is started, air flow in the drying rotary drum is drawn out through the air draft hood, a negative pressure internal environment is formed in the drying rotary drum, dry hot air flow in the drying air hood can be sucked from the inside, the penetrating power of the drying air flow is stronger, moisture in the paper is further taken away, and moisture is discharged through the negative pressure suction device. This device stoving gas cover cooperation drying drum and negative pressure suction device use, promoted drying efficiency by a wide margin, even if dry thicker paper, also can realize the purpose of high-speed operation stoving.
The amplitude modulation device of the device has the following use process: the forming net part (or called blanket net) supports the paper and is arranged around the drying rotary drum in an omega shape, and in the drying process, the drying rotary drum is driven to rotate by a transmission driving motor to provide power for the movement of the forming net part and the paper; meanwhile, the water in the paper can be taken away by the external air hood or the hot drying air flow introduced into the drying roller. When the drying roller rotates around the central axis, the shaking device is started, the transmission side shaft head, the transmission side cylinder cover, the drying roller, the operation side cylinder cover and the operation side shaft head can be driven to move transversely along the fixed shaft cylinder in a reciprocating manner, so that the paper fibers are uniformly distributed, and the drying speed is rapidly balanced.
The device can adapt to different amplitudes of the shaker by adjusting the amplitude modulation device. The specific adjustment mode is as follows: when the first chain wheel motor and the second chain wheel motor are started, the first adjusting screw rod and the second adjusting screw rod can be driven to rotate through the chain wheel transmission structure respectively; the first screw nut and the second screw nut are driven to be relatively close to or relatively far away from each other; simultaneously, the left amplitude modulation bracket and the right amplitude modulation bracket are driven to relatively approach or move away; then the left side plate and the right side plate are adjusted to be close to or far away from each other, so that the amplitude adjustment and limitation of the drying rotary drum are realized.
It should be noted that the shaker may be implemented by using a commercially available mature device, which is not a main innovation of this patent, and therefore, the structure and operation thereof will not be described in detail. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a heated air circulation formula drying equipment for air penetration paper machine which characterized in that: the drying device comprises a drying rotary drum, wherein a drying air cover is arranged outside the drying rotary drum in a wrapping manner, the drying air cover comprises a dry end air cover and a wet end air cover, and the dry end air cover and the wet end air cover are both arranged on a main rack; a main air inlet is respectively arranged on the dry end air cover and the wet end air cover, and the main air inlet is connected with a hot air source; arranging inner lining plates in the dry-end gas hood and the wet-end gas hood, wherein the inner lining plates are clamped to form a wind guide groove, round wind supply holes are formed in the working surfaces of the dry-end gas hood and the wet-end gas hood, which face the drying rotary drum, one end of the wind guide groove is communicated with a main wind inlet, and the other end of the wind guide groove is communicated with a plurality of round wind supply holes; the drying rotary drum is provided with drying air holes; one end of the drying rotary drum is set as a transmission end, the other end of the drying air cover is set as an operation end, the transmission end is provided with a transmission mechanism, and the transmission mechanism can drive the drying air cover to rotate around the fixed shaft drum; and a negative pressure suction device is arranged at the transmission end.
2. The hot air circulation type drying apparatus for the air penetration type paper machine according to claim 1, wherein: the negative pressure suction device comprises an air draft hood, and the air draft hood is arranged at the transmission end of the drying rotary drum; an air suction opening is formed in the air suction hood and is communicated with an air suction pump through an air suction pipe.
3. The hot air circulation type drying apparatus for the air penetration type paper machine according to claim 2, wherein: the outer plate of the drying air hood is made of double-layer 304 stainless steel plates, the inner lining plate is made of double-layer weathering steel, and centrifugal glass fiber cotton heat-insulating layers are arranged between the double-layer 304 stainless steel plates and between the double-layer weathering steel.
4. The hot air circulation type drying apparatus for the air penetration type paper machine according to claim 3, wherein: the left end of the drying rotary drum is a transmission end, a transmission side cylinder cover is fixedly arranged at the transmission end, a transmission side shaft head is arranged at the left side of the transmission side cylinder cover, and transmission side through holes are formed in the transmission side cylinder cover and the transmission side shaft head in a penetrating manner; the right end of the drying rotary drum is an operation end, an operation end cylinder cover is arranged at the operation end, an operation side shaft head is arranged on the right side of the operation side cylinder cover, and operation side through holes are formed in the operation side cylinder cover and the operation side shaft head in a penetrating mode; two ends of the fixed shaft cylinder penetrate through the transmission side through hole and the operation side through hole towards two sides and are respectively inserted into the left fixed shaft seat and the right fixed shaft seat;
a transmission side bearing is sleeved outside the transmission side shaft head and is arranged on a transmission side sliding block through the transmission side bearing, and the transmission side sliding block is arranged in a transmission side sliding groove of a transmission side bracket; the transmission side shaft head or the transmission side sliding block is connected with a shaker;
an operation side bearing is sleeved outside the operation side shaft head and is installed on an operation side sliding block through the operation side bearing, and the operation side sliding block is arranged in an operation side sliding groove of an operation side bracket;
the transmission mechanism comprises a rotation driving motor, a driven gear is sleeved outside a shaft head on the transmission side shaft, the driven gear is meshed with a driving gear, and the driving gear is arranged on a motor shaft of the rotation driving motor;
when the transmission driving motor is started, the transmission driving motor and the driven gear can be meshed with each other through the driving gear, and then the transmission side shaft head, the transmission side cylinder cover, the drying rotary drum, the operation side cylinder cover and the operation side shaft head are driven to synchronously rotate; meanwhile, the shaking device is started, and the transmission side shaft head, the transmission side cylinder cover, the drying rotary drum, the operation side cylinder cover and the operation side shaft head can be driven to reciprocate and move transversely along the fixed shaft barrel.
5. The hot air circulation type drying apparatus for the air penetration type paper machine according to claim 4, wherein: the operating end cylinder cover is formed by hermetically splicing a plurality of movable sealing end plates; sealing strips are arranged between the exhaust hood and the drying rotary drum and between the operation end cylinder cover and the drying rotary drum.
6. The hot air circulation type drying apparatus for the air penetration type paper machine according to claim 1, wherein: the drying drum also comprises an amplitude modulation device which is arranged in the drying drum; the amplitude modulation device comprises an amplitude modulation inner cylinder and a screw amplitude modulation structure, the fixed shaft cylinder, the amplitude modulation inner cylinder and the drying rotary cylinder are coaxially arranged from inside to outside, more than one sleeve outer sleeve ring is sleeved outside the fixed shaft cylinder, the inner end of a support rod is radially arranged on the sleeve outer sleeve ring, and the outer end of the support rod is connected with the inner wall of the amplitude modulation inner cylinder; an inner cylinder through hole is formed in the amplitude-modulated inner cylinder; the screw amplitude modulation structure is respectively connected with a left amplitude modulation bracket and a right amplitude modulation bracket, the left amplitude modulation bracket is connected with a left side plate, the right amplitude modulation bracket is connected with a right side plate, and the left side plate and the right side plate are respectively arranged between the amplitude modulation inner cylinder and the drying rotary cylinder; the left side plate and the right side plate are both in 2/3-4/5 annular plate shapes.
7. The hot air circulation type drying apparatus for the air penetration type paper machine according to claim 6, wherein: the screw amplitude modulation structure comprises a first adjusting screw, a second adjusting screw, a first nut, a second nut, a first chain wheel motor and a second chain wheel motor; a first left screw rod bearing seat and a second left screw rod bearing seat are arranged in the left end of the fixed shaft cylinder, and a first right screw rod bearing seat and a second right screw rod bearing seat are arranged at the right end of the fixed shaft cylinder; two ends of a first adjusting screw are respectively installed in a first left screw bearing seat and a first right screw bearing seat, and a first screw chain wheel is installed at the right end of the first adjusting screw penetrating through the first right screw bearing seat; two ends of a second adjusting screw are respectively installed in a second left screw bearing seat and a second right screw bearing seat, and a second screw chain wheel is installed at the right end of the second adjusting screw penetrating through the second right screw bearing seat; a chain wheel motor bracket is arranged at the right end of the fixed shaft cylinder penetrating through the operation side through hole, a first chain wheel motor and a second chain wheel motor are arranged on the chain wheel motor bracket, a first driving chain wheel and a second driving chain wheel are respectively sleeved on motor shafts of the first chain wheel motor and the second chain wheel motor, an annular first driving chain is sleeved on the first driving chain wheel and the first lead screw chain wheel, and an annular second driving chain is sleeved on the second driving chain wheel and the second lead screw chain wheel;
a first screw nut and a second screw nut are respectively sleeved on the first adjusting screw rod and the second adjusting screw rod; a first connecting rod through hole and a second connecting rod through hole are respectively formed in the side wall of the fixed shaft cylinder, a first connecting rod is arranged in the first connecting rod through hole, the inner end of the first connecting rod is connected and fixed with a first screw nut, and the outer end of the first connecting rod is connected with a left amplitude modulation bracket; a second connecting rod is arranged in the second connecting rod through hole, the inner end of the second connecting rod is connected and fixed with a second screw nut, and the outer end of the second connecting rod is connected with a right amplitude modulation bracket;
when the first chain wheel motor and the second chain wheel motor are started, the first adjusting screw rod and the second adjusting screw rod can be driven to rotate through the chain wheel transmission structure respectively; the first screw nut and the second screw nut are driven to be relatively close to or relatively far away from each other; simultaneously, the left amplitude modulation bracket and the right amplitude modulation bracket are driven to relatively approach or move away; then the left side plate and the right side plate are adjusted to be close to or far away from each other, and the amplitude adjustment of the drying rotary drum is realized.
8. The hot air circulation type drying apparatus for the air penetration type paper machine according to claim 7, characterized in that: the left amplitude modulation bracket comprises a left shaft barrel lantern ring and a left moving pulley, the left shaft barrel lantern ring is sleeved outside the fixed shaft barrel, the number of the first connecting rods is three, and the number of the first connecting rod through holes is three; the inner ends of the three first connecting rods are connected with first nuts, and the outer ends of the three first connecting rods penetrate through the corresponding first connecting rod through holes respectively and then are connected with a left shaft barrel lantern ring; the three first connecting rods are arranged in a radial shape; a left moving pulley is fixed on the left shaft barrel lantern ring, a left pulley is installed on one side, close to the fixed shaft barrel, of the left moving pulley, and the left pulley is in rolling contact with the outer wall of the fixed shaft barrel; the left moving block is provided with the lower end of a vertical rod part of a L-shaped left supporting rod, and the upper end of the vertical rod part of the left supporting rod is connected with a horizontal rod part of the left supporting rod after passing through a left strip-shaped through hole formed in the inner sleeve; the left end of the transverse rod part of the left support rod is connected with the left side plate;
the right amplitude modulation bracket comprises a right shaft barrel lantern ring and a right moving pulley, the right shaft barrel lantern ring is sleeved outside the fixed shaft barrel, the number of the second connecting rods is three, and the number of the second connecting rod through holes is three; the inner ends of the three second connecting rods are connected with second nuts, and the outer ends of the three second connecting rods penetrate through the corresponding second connecting rod through holes respectively and then are connected with the right shaft sleeve lantern ring; the three second connecting rods are arranged in a radial shape; a right moving pulley is fixed on the right shaft barrel lantern ring, a right pulley is installed on one side, close to the fixed shaft barrel, of the right moving pulley, and the right pulley is in rolling contact with the outer wall of the fixed shaft barrel; the lower end of a vertical rod part of a gamma-shaped right supporting rod is arranged on the right movable pulley, and the upper end of the vertical rod part of the right supporting rod passes through a right strip-shaped through hole formed in the inner sleeve and then is connected with a transverse rod part of the right supporting rod; the right end of the cross bar part of the right supporting rod is connected with the right side plate; the periphery of the left side plate is fixed with a left sealing strip through a left spring support arm; and the periphery of the right side plate is fixed with a right sealing strip through a right spring support arm.
9. The hot air circulation type drying apparatus for the air penetration type paper machine according to claim 8, wherein: the number of the left amplitude modulation brackets is more than three, and the left amplitude modulation brackets are arranged around the fixed shaft cylinder in an annular array; the number of the right amplitude modulation brackets is more than three, and the right amplitude modulation brackets are arranged around the fixed shaft cylinder in an annular array.
10. The hot air circulation type drying apparatus for the air penetration type paper machine according to claim 9, wherein: and a large shaft sleeve incremental encoder is arranged at the right end of the fixed shaft barrel through an encoder bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210791526.0A CN115029949A (en) | 2022-07-07 | 2022-07-07 | Heated air circulation formula drying equipment for air penetration paper machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210791526.0A CN115029949A (en) | 2022-07-07 | 2022-07-07 | Heated air circulation formula drying equipment for air penetration paper machine |
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| CN115029949A true CN115029949A (en) | 2022-09-09 |
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| CN202210791526.0A Pending CN115029949A (en) | 2022-07-07 | 2022-07-07 | Heated air circulation formula drying equipment for air penetration paper machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115874484A (en) * | 2022-10-24 | 2023-03-31 | 濮阳龙丰纸业有限公司 | Papermaking production is with high-efficient environmental protection drying equipment |
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