CN203768725U - Fine screen - Google Patents
Fine screen Download PDFInfo
- Publication number
- CN203768725U CN203768725U CN201320890290.2U CN201320890290U CN203768725U CN 203768725 U CN203768725 U CN 203768725U CN 201320890290 U CN201320890290 U CN 201320890290U CN 203768725 U CN203768725 U CN 203768725U
- Authority
- CN
- China
- Prior art keywords
- rotor
- housing
- screen cylinder
- screen
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002002 slurry Substances 0.000 claims description 44
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000007937 lozenge Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000004537 pulping Methods 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 11
- 238000004026 adhesive bonding Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000010893 paper waste Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000035568 catharsis Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000202567 Fatsia japonica Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Landscapes
- Paper (AREA)
Abstract
The utility model relates to a fine screen, and belongs to the field of special papermaking and pulping equipment. The fine screen comprises a shell; the shell is supported by support legs; the upper end of the shell is connected with a cover; the center of the shell is provided with a screen drum; the screen drum is internally provided with a rotor; the rotor is connected with a driving device by virtue of a spindle transmission device; the bottom of the shell is provided with a tail pulp opening; the cover is conical; the top of the cover is provided with a pulp return opening; the pulp return opening is connected with the tail pulp opening by virtue of a tail pulp circulating pipe. By arranging the conical cover and the slag discharging circulating pipe, the screening quality is improved, the production efficiency is improved, the service life of the screen drum is prolonged, the removal rate of gummy substances is high, the production efficiency is high, the energy consumption is low, and the operation is stable and reliable.
Description
Technical field
The utility model relates to a kind of fine screen, belongs to paper-making pulping special equipment field.
Background technology
At present, paper industry faces three large problems: 1 there is lack of raw materials, 2 energy shortages, and 3 is seriously polluted.Waste paper is recycled can economize in raw materials, increase production, reduce pollution protection environment, saves the energy and reduces consumption, but in wastepaper as raw material, contain a large amount of impurity.These impurity are to remove by the deslagging screen optional equipment in paper-making pulping line, and the screening degree direct influence of slurry arrives the quality of paper, and then have influence on production efficiency and the profit of enterprise.At the screening stage of various waste paper pulps, unrivaled works fine performance and reliable that pressurized screen has due to himself, become increasing client's first-selected screening installation.Fine screen be in pulping system, be placed in scalping after, the conventional screening installation before paper machine, further selected to the slurry through scalping, remove residually compared with the gluing thing containing in small impurities, thick fiber and waste paper, improve the quality of finished paper, increase client's economic benefit and social benefit.That uses in the market is mostly the fine screen that up-flow, cover are circular configuration.The energy consumption of finding such fine screen in use is large, production efficiency is low, the clearance of gluing thing is low.The rotor of traditional structure, is difficult to make slurry to mix during low cruise, evenly screening, causes the concentration phenomena of slurry serious, and screen cylinder is often stopped up, thus impact production, and production efficiency is low.
Utility model content
According to above the deficiencies in the prior art, the purpose of this utility model is: a kind of fine screen is provided, and the clearance of gluing thing is high, production efficiency is high, energy consumption is low, it is reliable to operate steadily.
Fine screen described in the utility model, comprise housing, housing supports by supporting leg, and housing upper end connects cover, and housing center is provided with screen cylinder, rotor is housed in screen cylinder, rotor is by spindle gearing connecting drive device, and housing bottom is provided with tail slurry mouth, and cover is conical, cover top is provided with overfall mouth, and overfall mouth is connected by tail slurry circulation pipe with tail slurry mouth.
By cover is designed to taper shape, increase deslagging circulation pipe, be connected with cover top, the area of low pressure on balance cavity top, makes inside cavity pressure consistent, reduces the impact of alternating pressure to screen frame, extend the service life of screen cylinder, improved screening quality and production efficiency.
Described rotor, comprises rotor body, rotor, and rotor is fixed on rotor body excircle, rotor is comprised of the front portion seamlessly transitting, rear portion, front portion is flat, and rear portion is cylindrical, the anterior and columniform rear portion of flat, when rotor body is rotated, malleation value and negative pressure value between rotor and pressurized screen reduce, and avoid that malleation value is excessive to be caused thick slag through screen cylinder and cause sieve pore blockade, extend the negative pressure working time, screen cylinder is cleaned thoroughly, be beneficial to good slurry and pass through.Anterior and rear portion seamlessly transits, and without winding, hanging phenomenon, occurs.Select suitable blade shape and setting angle, in conjunction with many rotors, staggered rotor structure, strengthened the catharsis of screen cylinder, the concentration phenomena in reducing in dense situation.Meanwhile, lower rotating speed, has reduced the positive pressure pulse that front edges of rotary wings produces, and reduces the impulsive force to impurity, avoids the granular of impurity, avoids gluing thing by sieve, to stitch because of compressive deformation, and removal of impurity is high, and good slurry quality is good.
Before described rotor outside, the angle of negative pressuren zone working face and screen cylinder is 30 °～90 °, and the angle of rear negative pressuren zone working face and screen cylinder is 10 °～20 °.By the angle of negative pressuren zone and screen cylinder is rationally set, make negative pressure longevity of service, good to backwater suction effect, screen cylinder is played to good cleaning action, avoid fibrous mass to hang and be attached on screen cylinder.
Described screen cylinder comprises drum surface and is arranged on the reinforcing ring of drum surface excircle, and reinforcing ring is comprised of annular flake, along screen cylinder, is axially evenly arranged.Reduce all thick of reinforcing ring, increased drum surface percent opening, the throughput of good slurry in unit are is increased.Broadening the contact-making surface of rotor, vacuum draw length is increased, make when malleation the large water gaging by sieve aperture turn back to again into slurry side when underbalance pulse, good like this slurry is consistent along the concentration of screen cylinder, greatly reduced the enrichment phenomenon on screen cylinder surface, the concentration of entering slurry, good slurry, tail slurry is consistent substantially.Network of fibers cock body is difficult for forming, and good slurry can pass through screen cylinder fast, thereby has guaranteed the good slurry throughput of screen cylinder, more effective deslagging.
Described drum surface comprises some wedge shape rods of longitudinal arrangement, and two ends, rod cross section all have lozenges, and flow channel is more reasonable, can reduce fluid resistance, reduce screenings cocnentration factor, reduce sieve plate and stop up, reduce fiber loss, improve forward production capacity and reverse cleansing power.Combine with many rotors, slow-speed of revolution blade, can reduce rotor speed, realize gentle screening, reach the object that reduces energy consumption and improve screening effeciency.
Described screen cylinder is fixed on housing by screen cylinder pressure ring.
Described spindle gearing is fixed on housing by the support of bearing, and housing top is provided with stock inlet, and lower housing portion is provided with good slurry mouthful, and housing bottom arranges seal water system, and cover top arranges hanger.Hanger can facilitate the dismounting of cover, is convenient to the maintenance of the cleaning of device interior, the replacing of screen cylinder and equipment.The lubricated panel of seal water system is fixed on the base plate of housing, by pipeline, is connected respectively with metal (upper with mechanical seal, guarantees the normal operation of spindle gearing.
Described drive unit comprises motor, and motor is fixed on electric machine support, and electric machine support bottom is fixed on end rail, and motor is connected with the large belt wheel of spindle gearing by V-belt.By regulating jackscrew to adjust the elasticity of V-belt, and then the normal operation of the equipment of assurance.
Operation principle and process:
This device is whole for adopting outer-flowing type, falling streaming structure, under a complete totally enclosed state, with the equipment of pressure step sizing.Slurry enters in sieve nest from housing top tangent line with certain pressure, and the barricade on process screen cylinder top enters screening area.Under the positive negative pulse stuffing producing at rotor wing rotation and the effect of the pressure differential inside and outside screen cylinder, good pulp fibres is by sieve aperture, and the slurry mouthful of getting married and start a new life is discharged.By the tail slurry of sieve aperture, from tail slurry mouth, do not get rid of.Cover has adopted conical structure, has been connected with tail slurry circulation pipe, balance the pressure in cavity, on the one hand rotor and rotor have adopted the structure of integral type again, have seamlessly transitted, greatly reduced the generation of winding, hanging phenomenon, have strengthened the self-cleaning ability of screen cylinder.Like this, effectively shorten the time of staying in impurity Shai district, reduced the possibility of impurity recycling, improved screening effeciency; Guaranteed that good pulp fibres enters good slurry mouthful by screen cylinder faster; Prevent the damage that heavy seeds causes rotor and screen cylinder, the service life of extension device.
Compared with prior art, the beneficial effect the utlity model has is:
This fine screen by conical cover and deslagging circulation pipe, improves screening quality and production efficiency, has extended the service life of screen cylinder, and the clearance of gluing thing is high, production efficiency is high, energy consumption is low, operate steadily reliable; By tapered rods bar, form undulating path, make flow channel more reasonable, can reduce fluid resistance, reduce screenings cocnentration factor, reduce sieve plate and stop up, reduce fiber loss, improve forward production capacity and reverse cleansing power, realize gentle screening, reach the object that reduces energy consumption and improve screening effeciency; Front portion and rear portion by rotor seamlessly transit, and avoid that malleation value is excessive to be caused thick slag through screen cylinder and cause sieve pore blockade, extend the negative pressure working time, have strengthened the catharsis of screen cylinder, the concentration phenomena in reducing in dense situation; Lower rotating speed, has reduced the positive pressure pulse that front edges of rotary wings produces, and reduces the impulsive force to impurity, avoids the granular of impurity, avoids gluing thing by sieve, to stitch because of compressive deformation, and removal of impurity is high, and good slurry quality is good.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is rotor plan structure schematic diagram;
Fig. 3 is the main TV structure schematic diagram of rotor;
Fig. 4 is screen cylinder structural representation;
Fig. 5 is screen cylinder plan structure schematic diagram;
Fig. 6 is A place enlarged drawing in Fig. 5.
In figure: 1, cover; 2, housing; 3, screen cylinder pressure ring; 4, screen cylinder; 401, upper flange; 402, drum surface; 403, reinforcing ring; 404, lower flange; 405, rod; 5, rotor; 501, rotor body; 502, rotor; 503, front portion; 504, rear portion; 6, spindle gearing; 7, motor; 8, electric machine support; 9, end rail; 10, regulate jackscrew; 11, V-belt; 12, large belt wheel; 13, supporting leg; 14, seal water system; 15, tail slurry mouth; 16, tail slurry circulation pipe; 17, good slurry mouthful; 18, stock inlet; 19, hanger.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As shown in Figure 1, this fine screen, comprises housing 2, and housing 2 supports by supporting leg 13, housing 2 upper ends connect cover 1, its top is provided with stock inlet 18, and bottom is provided with good slurry mouth 17, and bottom arranges tail slurry mouth 15 and seal water system 14, cover 1 is conical, its top arranges left and right two hangers 19, and top is provided with overfall mouth, and overfall mouth is connected by tail slurry circulation pipe 16 with tail slurry mouth 15.Housing 2 centers are provided with screen cylinder 4, and rotor 5 is housed in screen cylinder 4, and rotor 5 is by spindle gearing 6 connecting drive devices, and spindle gearing 6 is fixed on housing 2 by the support of bearing.Drive unit comprises motor 7, motor 7 is fixed on electric machine support 8, and electric machine support 8 bottoms are fixed on end rail 9, and motor 7 is connected with the large belt wheel 12 of spindle gearing 6 by V-belt 11, by regulating jackscrew 10 to adjust the elasticity of V-belt 11, and then the normal operation of the equipment of assurance.
As shown in Fig. 2～3, rotor 5 comprises rotor body 501, rotor 502, and rotor 502 is fixed on rotor body 501 excircles, and rotor 502 is comprised of the front portion 503 seamlessly transitting, rear portion 504, and anterior 503 is flat, and rear portion 504 is cylindrical.Before rotor 502 outsides, the angle of negative pressuren zone working face and screen cylinder 4 is 30 °～90 °, and the angle of rear negative pressuren zone working face and screen cylinder 4 is 10 °～20 °.Rotor 502 from top to bottom in the shape of a spiral evenly interlaced arrangement on rotor body 501 excircles, by reasonable Arrangement, slurry is mixed, reduced the generation of concentration phenomena, action of low-voltage pulse quantity increases, screen cylinder self-cleaning ability strengthens, and has guaranteed the throughput of good slurry.
As shown in Fig. 4～6, screen cylinder 4 comprises drum surface 402 and is arranged on the reinforcing ring 403 of drum surface 402 excircles, and reinforcing ring 403 is comprised of annular flake, along screen cylinder 4, is axially evenly arranged.Drum surface 402 comprises some wedge shape rods 405 of longitudinal arrangement, and rod 405 two ends, cross section all have lozenges.Screen cylinder is respectively equipped with upper flange 401, lower flange 404 in two ends Shang Xia 4, and upper flange is connected with screen cylinder pressure ring 3, and screen cylinder pressure ring 3 is fixed on housing 2, and lower flange 404 is fixed on housing 2 bottoms.
The course of work;
Slurry enters in sieve nest from stock inlet 18 tangent lines on housing 2 tops with certain pressure, and the barricade on process screen cylinder 4 tops enters screening area.Rotor 5 rotation under motor 7 drives, under the positive negative pulse stuffing of rotor 502 rotation generations and the effect of the pressure differential inside and outside screen cylinder 4 of rotor 5, good pulp fibres is by the sieve aperture of screen cylinder 4, the slurry mouth 17 of getting married and start a new life is discharged, by the tail slurry of sieve aperture, from tail slurry mouth 15, do not get rid of, then through tail slurry circulation pipe 16, enter the overfall mouth of cover, and reenter screening area and screen, thereby reach best screening effect.
The utility model is tried out by the logical slurry in paper plant, aspect the removal of screening effect, production capacity, gluing thing, comparing and be greatly improved with current same kind of domestic equipment, energy consumption obviously reduces, having reached the level of external same category of device, is the renewal product that domestic pressurized screen is processed recycled pulp.
Claims (8)
1. a fine screen, comprise housing (2), housing (2) supports by supporting leg (13), housing (2) upper end connects cover (1), housing (2) center is provided with screen cylinder (4), rotor (5) is housed in screen cylinder (4), rotor (5) is by spindle gearing (6) connecting drive device, housing (2) bottom is provided with tail slurry mouth (15), it is characterized in that: cover (1) is for conical, cover (1) top is provided with overfall mouth, and overfall mouth is connected by tail slurry circulation pipe (16) with tail slurry mouth (15).
2. fine screen according to claim 1, it is characterized in that: described rotor (5), comprise rotor body (501), rotor (502), rotor (502) is fixed on rotor body (501) excircle, rotor (502) is comprised of the front portion seamlessly transitting (503), rear portion (504), anterior (503) are flat, and rear portion (504) are cylindrical.
3. fine screen according to claim 2, is characterized in that: before described rotor (502) outside, the angle of negative pressuren zone working face and screen cylinder (4) is 30 °～90 °, and the angle of rear negative pressuren zone working face and screen cylinder (4) is 10 °～20 °.
4. fine screen according to claim 1, it is characterized in that: described screen cylinder (4) comprises drum surface (402) and is arranged on the reinforcing ring (403) of drum surface (402) excircle, reinforcing ring (403) is comprised of annular flake, along screen cylinder (4), is axially evenly arranged.
5. fine screen according to claim 4, is characterized in that: described drum surface (402) comprises some wedge shape rods (405) of longitudinal arrangement, and rod (405) two ends, cross section all have lozenges.
6. fine screen according to claim 4, is characterized in that: described screen cylinder (4) is fixed on housing (2) by screen cylinder pressure ring (3).
7. according to the arbitrary described fine screen of claim 1～6, it is characterized in that: described spindle gearing (6) is fixed on housing (2) by the support of bearing, housing (2) top is provided with stock inlet (18), housing (2) bottom is provided with good slurry mouthful (17), housing (2) bottom arranges seal water system (14), and cover (1) top arranges hanger (19).
8. according to the arbitrary described fine screen of claim 1～6, it is characterized in that: described drive unit comprises motor (7), motor (7) is fixed on electric machine support (8), it is upper that electric machine support (8) bottom is fixed on end rail (9), and motor (7) is connected with the large belt wheel (12) of spindle gearing (6) by V-belt (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890290.2U CN203768725U (en) | 2013-12-31 | 2013-12-31 | Fine screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890290.2U CN203768725U (en) | 2013-12-31 | 2013-12-31 | Fine screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203768725U true CN203768725U (en) | 2014-08-13 |
Family
ID=51285933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320890290.2U Expired - Lifetime CN203768725U (en) | 2013-12-31 | 2013-12-31 | Fine screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203768725U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643581A (en) * | 2013-12-31 | 2014-03-19 | 山东晨钟机械股份有限公司 | Fine screen |
| CN105256638A (en) * | 2015-11-20 | 2016-01-20 | 山东杰锋机械制造有限公司 | Efficient screening device for paper pulp suspension liquid |
| CN113622212A (en) * | 2021-08-11 | 2021-11-09 | 泰盛科技（集团）股份有限公司 | Bamboo pulp fiber screening plant |
-
2013
- 2013-12-31 CN CN201320890290.2U patent/CN203768725U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643581A (en) * | 2013-12-31 | 2014-03-19 | 山东晨钟机械股份有限公司 | Fine screen |
| CN103643581B (en) * | 2013-12-31 | 2016-03-02 | 山东晨钟机械股份有限公司 | fine screen |
| CN105256638A (en) * | 2015-11-20 | 2016-01-20 | 山东杰锋机械制造有限公司 | Efficient screening device for paper pulp suspension liquid |
| CN105256638B (en) * | 2015-11-20 | 2017-05-17 | 山东杰锋机械制造有限公司 | Efficient screening device for paper pulp suspension liquid |
| CN113622212A (en) * | 2021-08-11 | 2021-11-09 | 泰盛科技（集团）股份有限公司 | Bamboo pulp fiber screening plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |