CN110307712B - Single-layer mesh belt dryer - Google Patents
Single-layer mesh belt dryer Download PDFInfo
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- CN110307712B CN110307712B CN201910514051.9A CN201910514051A CN110307712B CN 110307712 B CN110307712 B CN 110307712B CN 201910514051 A CN201910514051 A CN 201910514051A CN 110307712 B CN110307712 B CN 110307712B
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- 239000002356 single layer Substances 0.000 title claims abstract description 12
- 241001122767 Theaceae Species 0.000 claims abstract description 65
- 238000007664 blowing Methods 0.000 claims abstract description 53
- 238000001035 drying Methods 0.000 claims abstract description 41
- 239000000428 dust Substances 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims description 51
- 238000004140 cleaning Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 16
- 238000004064 recycling Methods 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/06—Treating tea before extraction; Preparations produced thereby
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
- F26B17/045—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined the material on the belt being agitated, dispersed or turned over by mechanical means, e.g. by vibrating the belt, by fixed, rotating or oscillating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/20—Teas, i.e. drying, conditioning, withering of tea leaves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Tea And Coffee (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the field of tea making equipment, and provides a single-layer mesh belt dryer which comprises a frame, wherein a driving device, a drying device and a dehumidifying and dedusting device are arranged on the frame; the drying device comprises a blowing device, a wind power conveying device, a conveying net for conveying tea leaves and a dust hood, and a drying cavity is formed between the conveying net and the dust hood; the blowing device is used for blowing air and delivering the air to the lower surface of the conveying net through the air force conveying device. The device has simple structure, stability and reliability, and ensures that the manufactured tea leaves are cleaner and the subsequent processing is simpler, thereby improving the efficiency of production and processing; meanwhile, the impurities are recovered, so that the method is convenient for unified treatment, avoids environmental pollution caused by the fact that the impurities are discharged into the air, and plays a role in protecting the environment.
Description
Technical Field
The invention belongs to the field of tea making equipment, and relates to a dryer, in particular to a single-layer mesh belt dryer.
Background
The tea products in China are various, and are not only large tea producing countries, but also large consumption countries. The tea dryer heats by using the environment air through power generated by electric power, diesel power, wind power, inflammable material resources and the like, and conveys the environment air into equipment, so that proper temperature is reached to dehumidify tea.
The dryer used in the current market can only carry out uninterrupted drying once under static state, and inside moisture vapor cannot pass through, causes that the surface layer material is drier, material surface chap, therefore still need to spread cool in other places through manual handling in practical application and mix the back again and dry. Or the drying device is a drying box, only can dry one batch by one batch, cannot form a running water production line, and influences the production efficiency. In addition, the existing tea dryer can not effectively discharge dust and steam in the dryer, tea scraps floating in the air and harmful substances which are released by heating, so that the quality of the manufactured tea is seriously affected, the follow-up separation and filtration are needed, and the production efficiency is influenced.
Disclosure of Invention
The present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a single layer mesh belt dryer.
The aim of the invention can be achieved by the following technical scheme: the single-layer mesh belt dryer comprises a frame, wherein a driving device, a drying device and a dehumidifying and dedusting device are arranged on the frame; the drying device comprises a blowing device, a wind power conveying device, a conveying net for conveying tea and a dust hood, wherein a drying cavity is formed between the conveying net and the dust hood; the blowing device is used for blowing air and conveying the air to the lower surface of the conveying net through the wind power conveying device;
The dehumidifying and dedusting device comprises an exhaust fan, a guide cover, a separating mechanism and a recycling mechanism, wherein an air outlet is formed in the dedusting cover; the exhaust fan is arranged at the air outlet of the dust hood, sucks out the air in the dryer and flows to the separating mechanism through the guide hood; the separation mechanism is provided with an air outlet and a drainage air duct; the separating mechanism is connected with the recovery mechanism through a transmission pipeline, the recovery mechanism is provided with an exhaust hole, and the recovery mechanism is used for recovering tea scraps and dust.
The working principle of the invention is as follows: when the dryer works, the driving device is used for providing a driving power source; the air blowing device is used for blowing air to the conveying net, so that the drying speed is increased; the wind power conveying device conveys wind of the air blowing device to the lower surface of the conveying net; the drying device is used for conveying tea leaves; in the dehumidifying and dedusting device, an exhaust fan continuously sucks out gas from the dryer, the gas flows to a separating mechanism through a guide cover, steam is directly discharged from a gas outlet by utilizing the rising principle of hot air, a drainage air duct can guide dust impurities with larger mass into a transmission pipeline, the dust impurities flow into a recovery mechanism, the exhaust hole in the recovery mechanism further discharges unseparated steam, and the dust impurities and the like flow to the bottom of the recovery mechanism due to the action of gravity. The device has simple structure, stability and reliability, and ensures that the manufactured tea leaves are cleaner and the subsequent processing is simpler, thereby improving the efficiency of production and processing; meanwhile, the impurities are recovered, so that the method is convenient for unified treatment, avoids environmental pollution caused by the fact that the impurities are discharged into the air, and plays a role in protecting the environment.
Preferably, the wind power conveying device comprises an air supply channel and an air supply hopper which are sequentially connected with the air blowing device, wherein the thinner end of the air supply hopper is connected with the air supply channel, the thinner end of the air supply hopper is provided with a grid, and the grid divides the air supply hopper into a plurality of air supply openings; an air blowing box is arranged between the air blowing device and the air blowing channel and is used for dispersing wind power blown out by the air blowing device; a lower opening is formed below one surface of the air blowing box, which is close to the air blowing device, and the lower opening is used for being in butt joint with the air blowing device; an upper opening is arranged above one surface of the blast box, which is close to the air supply channel, and the upper opening is used for being in butt joint with the air supply channel.
Preferably, the grids are crisscrossed, and the height of the grids is 1/3-2/3 of the height of the air supply hopper; a partition board is arranged in the air supply channel, the partition board divides the air supply channel into an upper air supply cavity and a lower air supply cavity or a left air supply cavity and a right air supply cavity, and the partition board is used for dividing air; the cleaning window is arranged on the air supply channel and is movably connected with the air supply channel, and the cleaning window is used for cleaning or overhauling the air supply channel.
Preferably, the machine frame is also provided with a leaf homogenizing device, the leaf homogenizing device is arranged above the drying cavity and is used for uniformly spreading tea leaves, the leaf homogenizing device comprises a central support, blades are detachably connected to the peripheral wall in the length direction of the central support, and a part, far away from the central support, of each blade is detachably connected with a leaf homogenizing device She Juchi; the end part of the central support in the length direction is connected with a rotating device, and the rotating device drives the central support to rotate.
Preferably, the uniform She Juchi is made of flexible material.
Preferably, the uniform part She Juchi is made of rubber.
Preferably, the uniform She Juchi is connected with the blade through a screw.
Preferably, the distance adjusting device adjusts the distance between the blade and the center support through a screw.
Preferably, a distance adjusting device is further arranged between the blade and the center support, and the distance adjusting device can adjust the distance between the blade and the center support; the two ends of the central support in the length direction are provided with displacement devices, and the displacement devices are used for adjusting the distance between the central support and the conveying net.
Preferably, the edge of the length direction of the conveying net is provided with a deviation preventing wheel, the frame is also provided with a through hole for fixing the deviation preventing wheel, and the deviation preventing wheel can be fixed after moving in the vertical direction in the through hole.
Preferably, the anti-walk-off wheel is arranged on a non-horizontal plane on the conveying network; the anti-walk deflection wheel is fixed in the through hole through a screw; the through hole is a flat through hole, the outline shape of the flat through hole is composed of two circular arc sections and two straight line sections, the diameters of the two circular arcs are the same, and the diameters of the circular arcs are matched with the model of the nut.
Preferably, the frame is further provided with a conveying roller, the conveying roller comprises a driving roller and one or more driven rollers, the conveying net is sleeved on the conveying roller, the driving device is used for driving the driving roller to rotate, and two ends of the driven conveying roller are further provided with position adjusting devices which are used for adjusting the positions of the driven conveying roller to enable the conveying net to be tensioned.
Preferably, the frame is an assembled frame.
Preferably, the number of the blades is two, the lengths of the blades are matched with the length of the central support, and the two blades are symmetrical by taking the central support as the center.
Preferably, the blades are four, the length of each blade is matched with half of the length of the central support, the four blades are divided into two groups, one group of blades is arranged on one side close to the driving device, and the other group of blades is arranged on one side far away from the driving device; each group of blades is symmetrical by taking the central bracket as the center.
Preferably, the two sets of blades are perpendicular to each other.
Preferably, the blades are four, the lengths of the blades are matched with those of the central support, and the blades are uniformly distributed on the peripheral wall of the central support.
Preferably, the blower box has a surface provided with a lower opening and a surface provided with an upper opening.
Preferably, the number of the cleaning windows is two; when the partition plate divides the air supply channel into an upper air supply cavity and a lower air supply cavity, one cleaning window corresponds to the upper air supply cavity of the air supply channel, and the other cleaning window corresponds to the lower air supply cavity; when the partition plate divides the air supply channel into a left air supply cavity and a right air supply cavity, or one cleaning window corresponds to the left air supply cavity of the air supply channel and the other cleaning window corresponds to the right air supply cavity.
Preferably, the air supply hopper is a square hopper or a round hopper.
Preferably, the grid is made of metal, and the grid is fixedly arranged or clamped on the inner wall of the air supply hopper. The fixed grids are stable in use; the clamped grids are convenient to replace and clean.
Preferably, the anti-walk-off wheels are arranged in pairs, and each pair of the anti-walk-off wheels is arranged on the frame at the opposite position in the width direction of the conveying net.
Preferably, the deflection preventing wheels are 1-6 pairs.
Preferably, the anti-walk-around wheel is fixed in the through hole by a screw.
Preferably, the through hole is a flat through hole, the outline shape of the flat through hole is composed of two circular arc sections and two straight line sections, the diameters of the two circular arcs are the same, and the diameters of the circular arcs are matched with the model of the nut.
Preferably, the conveying net is made of metal.
Preferably, the driving device is a motor.
Preferably, the number of the driven conveying rollers is 2 to 10.
Preferably, the separating mechanism further comprises a cylinder body, the top of the cylinder body is eccentrically arranged with the cylinder body through the drainage air duct, the section of the drainage air duct is larger than the section area of the cylinder body, the air outlet is arranged at the top end of the cylinder body and is close to one end with small section area, which is eccentrically arranged, of the cylinder body, and the cylinder body is communicated with the transmission pipeline.
Preferably, the guide cover is connected with the cylinder upwards in an arc shape, and the guide cover is fixedly connected with the cylinder through a connecting piece.
Preferably, the guide cover is also provided with an arc-shaped guide plate and a maintenance window, and the arc-shaped guide plate and the maintenance window are fixedly connected with the guide cover.
Preferably, a guide fan is further arranged in the guide cover, the guide fan comprises a fan shaft, fan blades arranged on the fan shaft and a fixing part arranged on the fan blades, and the guide fan is used for conveying gas into the separating mechanism.
Preferably, the fan shaft is provided with an air guide convex part which is arranged in a cone structure, and the fan blades are arranged in an inclined structure and uniformly distributed on the fan shaft.
Preferably, the top ends of the separating mechanism and the recovering mechanism are round tubes, and the conveying pipelines are tangent to the side surfaces of the separating mechanism and the recovering mechanism respectively.
Preferably, the lower part of the top of the recovery mechanism is funnel-shaped.
Preferably, the dust hood is provided with an inclined plane.
Preferably, a connecting sealing part is further arranged between the transmission pipelines, the connecting sealing part fixedly connects and seals the output channel and the incoming channel through a connecting piece, the connecting sealing part divides the transmission pipeline into an output channel and an incoming channel, the output channel and the drainage air channel are connected into a whole, and the incoming channel and the recovery mechanism are connected into a whole.
Compared with the prior art, the invention has the following advantages:
1. According to the invention, the tea is dried by the cooperation of the air blowing device and the air conveying device, a heat-insulating drying cavity is formed between the dust hood and the conveying net, so that the tea can be dried rapidly, the tea is scattered and evenly stirred by the leaf homogenizing device arranged in the drying cavity, the air circulation in the drying cavity can be accelerated, and the drying efficiency of the tea is accelerated; the device has simple structure, stability and reliability, and ensures that the manufactured tea leaves are cleaner and the subsequent processing is simpler, thereby improving the efficiency of production and processing; meanwhile, the impurities are recovered, so that the method is convenient for unified treatment, avoids environmental pollution caused by the fact that the impurities are discharged into the air, and plays a role in protecting the environment.
2. The leaf homogenizing device can be used in a flow production line, and the homogenizing She Juchi is made of flexible materials, so that a good leaf homogenizing effect can be achieved, tea leaves are not damaged, leaves of finished tea leaves are intact, the quality of the tea leaves is not lost due to mechanical processing, and the profit of the product is increased.
3. The leaf homogenizing device can realize the adjustment of the height of the position, and the displacement device can realize the adjustment of the greater heights of the center support and the leaves; the distance between the blades and the center support can be realized by the distance adjusting device between the blades and the center support, so that the distance between the uniform She Juchi and the conveying net is adjusted, and the fine adjustment of the height position of the blades is realized.
4. In the invention, the uniform She Juchi is connected with the blades through the screw parts, the uniform She Juchi can be replaced and cleaned, bacteria on the uniform blade saw teeth are prevented from breeding, and the blade saw teeth are cleaner and more sanitary.
5. The wind power conveying device can uniformly convey wind power, so that tea can be uniformly dried, the flavor of the tea is kept, the device can be used on a production line, the production speed of the tea is improved, and the production cost is reduced.
6. In the invention, after the wind is blown out by the blower, the wind is first turned once by the blower box, and the turning can play a role of dispersing the airflow; then the air flow is divided into two air flows by a partition board in the air flow channel, so that the air flows are prevented from being concentrated in the middle part of the air flow channel, and the secondary steering is carried out at the tail end of the air flow channel, so that the air flows are more uniformly dispersed; then through the air supply hopper, the grids in the air supply hopper can disperse the air flow more finely, eliminate dead angles without the air flow, and can not form local overheat to influence the quality of tea, so that the tea is very stable and uniform when entering the tea drying cavity, and the tea can be dried uniformly, thereby ensuring the tea making quality.
7. In the invention, the air supply hopper adopts a structure with big top and small bottom, and air enters from the small opening and flows out from the big opening, thereby playing a role in stabilizing air flow; the small opening of the air-sending hopper is provided with the grid, so that the air-sending hopper is convenient to disperse when the air flow passes through the grid, and dead angles without the air flow in the air-sending hopper are eliminated.
8. In the invention, the air supply hopper is square or round, and the square air supply hopper is convenient for arranging a plurality of air supply hoppers side by side, so that the non-interval drying can be realized.
9. At present, a tensioning rod is generally added to a conveying device, but the tensioning rod is easy to change when bearing pressure, the service life is short, and the tensioning rod is complex in structure and not easy to set; in addition, the tensioning rod is generally arranged in the circulating conveying net, so that the tensioning rod cannot press the conveying net, and the conveying net is still easy to deviate. The anti-deviation conveying device can prevent the conveying net from deviating in the process of drying tea, prevent the conveying net from wearing to cause tea loss, effectively prevent the conveying net from wearing out the conveying device, and prolong the service life of the machine.
10. According to the anti-deviation conveying device, the anti-deviation wheels exert pressure on the conveying net, on one hand, friction force between the anti-deviation wheels and the conveying net can be increased to prevent the conveying net from deviating, and on the other hand, when the conveying net deviates or loosens, the anti-deviation wheels can adjust vertical positions in the through holes, the circumference of a conveying path of the conveying net is increased, and the tensioning effect is achieved.
11. The deflection preventing wheels are arranged in pairs, so that only one side of the deflection preventing wheels can be adjusted, and both sides of the deflection preventing wheels can be adjusted simultaneously, tensioning of the conveying net and smooth conveying of tea leaves are ensured, and deflection of the conveying net is prevented.
12. The anti-deflection wheel has a simple structure, plays roles of net pressing and tensioning, is universal for various conveying devices, and has low cost and wide prospects.
13. In the invention, the frame is an assembled frame, the frame can be assembled according to actual needs to reach a set length so as to adapt to conveying nets with different lengths, the operation is simple and convenient, and the tea leaves with different drying time lengths can be dried by only one machine, so that the cost and the area are saved.
14. The invention solves the problem that the existing dryer can not effectively discharge dust, steam and other impurities in the dryer, and has the advantages of good quality of the prepared tea, simple and convenient subsequent processing, improved production and processing efficiency and environmental protection.
Drawings
Fig. 1 is a schematic view of a structure of a dryer of the present invention;
FIG. 2 is a schematic view of another angle configuration of the present invention;
FIG. 3 is a schematic view showing the structure of the inside of the drying chamber of the present invention;
FIG. 4 is a top view of the dryer of the present invention;
FIG. 5 is a schematic view of the structure of the wet removing and dust removing device;
FIG. 6 is a schematic view of a portion of a conveyor web and an anti-walk-off wheel;
Fig. 7 is a partial enlarged view of a portion a in fig. 6;
Fig. 8 is a partial enlarged view of the portion B in fig. 6;
FIG. 9 is a schematic view of a two-bladed blade balancing apparatus;
FIG. 10 is a schematic view of a four-bladed fan assembly;
FIG. 11 is a schematic view of the structure of the blower and wind power transmission device;
FIG. 12 is a schematic view of a structure of the blower and the wind power transmission device at another angle;
FIG. 13 is a schematic view of a fan;
In the figure, N1 is an exhaust fan; n2, a guide cover; n3, a separating mechanism; n4, a recovery mechanism; n5, a dust hood; n6, an air outlet; n7, and an air outlet; n8, a drainage air duct; n9, a transmission pipeline; n10, vent holes; n11, cylinder; n13, guide plate; n14, maintaining a window; n15, a fan is guided; n16, fan shaft; n17, flabellum; n18, fixing part; n19, wind guiding convex part; n20, inclined plane; n22, connecting the sealing part; n23, output channel; n24, incoming channel; s1, a dehumidifying and dedusting device; s2, a driving device; s3, a blower device; s4, conveying a net; s8, a drying cavity; s9, a wind power conveying device; s10, an air supply channel; s11, an air supply hopper; s12, a grid; s13, a blast box; s14, opening the upper part; s15, opening the lower part; s16, a partition board; s17, cleaning a window; s18, a leaf homogenizing device; s19, a central bracket; s20, a blade; s21, rotating the device; s22, a distance adjusting device; s23, a displacement device; s24, a deviation preventing wheel; s25, through holes; s31, a position adjusting device; s32, homogenizing She Juchi.
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these examples.
As shown in the figure, the single-layer mesh belt dryer comprises a frame, wherein a driving device S2, a drying device and a dehumidifying and dedusting device S1 are arranged on the frame; the drying device comprises a blowing device S3, a wind power conveying device S9, a conveying net S4 for conveying tea leaves and a dust hood N5, and a drying cavity S8 is formed between the conveying net S4 and the dust hood N5; the air blowing device S3 is used for blowing air and conveying the air to the lower surface of the conveying net S4 through the air conveying device S9; the dehumidifying and dedusting device S1 comprises an exhaust fan N1, a guide cover N2, a separating mechanism N3 and a recycling mechanism N4, and an air outlet N6 is formed in a dedusting cover N5; the exhaust fan N1 is arranged at an air outlet N6 of the dust hood N5, sucks out air in the dryer and flows to the separating mechanism N3 through the guide hood N2; the separating mechanism N3 is provided with an air outlet N7 and a drainage air duct N8; the separating mechanism N3 is connected with the recycling mechanism N4 through a transmission pipeline N9, an exhaust hole N10 is formed in the recycling mechanism N4, and the recycling mechanism N4 is used for recycling tea scraps and dust. When the dryer works, the driving device S2 is used for providing a driving power source; the air blowing device S3 is used for blowing air to the conveying net S4, so that the drying speed is increased; the wind power conveying device S9 conveys wind of the air blowing device S3 to the lower surface of the conveying net S4; the drying device is used for conveying tea leaves; in the dehumidifying and dedusting device S1, the exhaust fan N1 continuously sucks out gas from the dryer, the gas flows to the separating mechanism N3 through the guide cover N2, the principle of rising hot air is utilized, water vapor is directly discharged from the air outlet N7, the drainage air duct N8 can guide dust impurities with larger mass to the transmission pipeline N9, the dust impurities flow into the recycling mechanism N4, the exhaust hole N10 in the recycling mechanism N4 further discharges unseparated water vapor, and the dust impurities and the like flow to the bottom of the recycling mechanism N4 due to the action of gravity. The device has simple structure, stability and reliability, and ensures that the manufactured tea leaves are cleaner and the subsequent processing is simpler, thereby improving the efficiency of production and processing; meanwhile, the impurities are recovered, so that the method is convenient for unified treatment, avoids environmental pollution caused by the fact that the impurities are discharged into the air, and plays a role in protecting the environment.
The wind power conveying device S9 comprises an air supply channel S10 and an air supply hopper which are sequentially connected with the air blowing device S3
S11, the thinner end of the air supply hopper S11 is connected with an air supply channel S10, a grid S12 is arranged at the thinner end inside the air supply hopper S11, and the grid S12 divides the air supply hopper S11 into a plurality of air supply outlets; an air blowing box S13 is further arranged between the air blowing device S3 and the air blowing channel S10, and the air blowing box S13 is used for dispersing wind power blown out by the air blowing device S3; a lower opening S15 is formed below one surface of the air blowing box S13, which is close to the air blowing device S3, and the lower opening S15 is used for being in butt joint with the air blowing device S3; an upper opening S14 is arranged above one surface of the air blowing box S13 close to the air blowing channel S10, and the upper opening S14 is used for being in butt joint with the air blowing channel S10. The grids S12 are crisscrossed grids S12, and the height of the grids S12 is 1/3-2/3 of the height of the air supply hopper S11; the inside of the air supply channel S10 is provided with a partition plate S16, the partition plate S16 divides the air supply channel S10 into an upper air supply cavity and a lower air supply cavity or a left air supply cavity and a right air supply cavity, and the partition plate S16 is used for dividing air; the air supply channel S10 is provided with a cleaning window S17, the cleaning window S17 is movably connected with the air supply channel S10, and the cleaning window S17 is used for cleaning or overhauling the air supply channel S10.
The machine frame is also provided with a leaf homogenizing device S18, the leaf homogenizing device S18 is arranged above the drying cavity S8 and is used for uniformly spreading tea leaves, the leaf homogenizing device S18 comprises a central support S19, blades S20 are detachably connected to the peripheral wall of the central support S19 in the length direction, and a uniform She Juchi S32 is detachably connected to one side, far away from the central support S19, of the blades S20; the end of the center support S19 in the length direction is connected with a rotating device S21, and the rotating device S21 drives the center support S19 to rotate. The uniform She Juchi S32 is made of flexible materials. And the uniform She Juchi S32 is made of rubber. Screw connection is arranged between the uniform She Juchi S32 and the blade S20. The distance adjusting device S22 adjusts the distance between the blade S20 and the center support S19 by a screw. A distance adjusting device S22 is further arranged between the blade S20 and the center support S19, and the distance adjusting device S22 can adjust the distance between the blade S20 and the center support S19; the displacement devices S23 are arranged at the two ends of the central support S19 in the length direction, and the displacement devices S23 are used for adjusting the distance between the central support S19 and the conveying net S4.
The edge of the length direction of the conveying net S4 is provided with a deviation preventing wheel S24, the frame is also provided with a through hole S25 for fixing the deviation preventing wheel S24, and the deviation preventing wheel S24 can be fixed after moving in the vertical direction in the through hole S25. The anti-walk deflection wheel S24 is arranged on a non-horizontal plane on the conveying net S4; the anti-walk-off wheel S24 is fixed in the through hole S25 through a screw; the through hole S25 is a flat through hole S25, the outline shape of the flat through hole S25 is composed of two circular arc sections and two straight line sections, the diameters of the two circular arcs are the same, and the diameters of the circular arcs are matched with the types of nuts.
The frame is also provided with a conveying roller, the conveying roller comprises a driving roller and one or more driven rollers, the conveying net S4 is sleeved on the conveying roller, the driving device S2 is used for driving the driving roller to rotate, two end parts of the driven conveying roller are also provided with position adjusting devices S31, and the position adjusting devices S31 are used for adjusting the position of the driven conveying roller so that the conveying net S4 is tensioned.
The frame is an assembled frame.
The number of the blades S20 is two, the length of the blades S20 is matched with that of the central support S19, and the two blades S20 are symmetrical with the central support S19 as the center. The number of the blades S20 is four, the length of the blades S20 is matched with half of the length of the central support S19, the four blades S20 are divided into two groups, one group of blades S20 is arranged on one side close to the driving device S2, and the other group of blades S20 is arranged on one side far away from the driving device S2; each set of blades S20 is symmetrical about a central support S19. The two sets of blades S20 are perpendicular to each other. Or the number of the blades S20 is four, the lengths of the blades S20 are matched with those of the central support S19, and the blades S20 are uniformly distributed on the peripheral wall of the central support S19.
The surface of the blower box S13 provided with the lower opening S15 is opposite to the surface provided with the upper opening S14. The number of the cleaning windows S17 is two; when the partition plate S16 divides the air supply channel S10 into an upper air supply cavity and a lower air supply cavity, one cleaning window S17 corresponds to the upper air supply cavity of the air supply channel S10, and the other cleaning window S17 corresponds to the lower air supply cavity; when the partition plate S16 divides the air supply duct S10 into left and right air supply chambers, one cleaning window S17 corresponds to the left air supply chamber of the air supply duct S10, and the other cleaning window S17 corresponds to the right air supply chamber. The air supply hopper S11 is a square hopper or a round hopper. The grid S12 is made of metal, and the grid S12 is fixedly arranged or clamped on the inner wall of the air supply hopper S11. The fixed grid S12 is stable in use; the clamped grid S12 is convenient to replace and clean.
The anti-walk-off wheels S24 are arranged in pairs, and each pair of the anti-walk-off wheels S24 is arranged on a frame at the opposite position in the width direction of the conveying net S4. The number of the deflection preventing wheels S24 is 1-6. The deflection preventing wheel S24 is fixed in the through hole S25 by a screw. The through hole S25 is a flat through hole S25, the outline shape of the flat through hole S25 is composed of two circular arc sections and two straight line sections, the diameters of the two circular arcs are the same, and the diameters of the circular arcs are matched with the types of nuts. The conveying net S4 is made of metal. The driving device S2 is a motor. The number of the driven conveying rollers is 2-10.
Separating mechanism N3 still includes barrel N11, and drainage wind channel N8 locates barrel N11's top and barrel N11 and is eccentric setting, and drainage wind channel N8 cross-section is greater than barrel N11 cross-sectional area, and barrel N11 still communicates with transmission pipeline N9 just is close to the small one end of cross-sectional area that eccentric setting is located barrel N11 top to gas outlet N7.
The guide cover N2 is upwards connected with the cylinder N11 in an arc shape, and the guide cover N2 is fixedly connected with the cylinder N11 through a connecting piece. The guide cover N2 is also provided with an arc-shaped guide plate N13 and a maintenance window N14, and the arc-shaped guide plate N13 and the maintenance window N14 are fixedly connected with the guide cover N2. The guide cover N2 is further provided with a guide fan N15, the guide fan N15 includes a fan shaft N16, fan blades N17 disposed on the fan shaft N16, and a fixing portion N18 disposed on the fan blades N17, and the guide fan N15 is used for conveying gas into the separation mechanism N3. The fan shaft N16 is provided with an air guide convex part N19, the air guide convex part N19 is arranged in a cone structure, and the fan blades N17 are arranged in an inclined structure and uniformly distributed on the fan shaft N16. The top ends of the separating mechanism N3 and the recovering mechanism N4 are round tubes, and the transmission pipeline N9 is tangent to the side surfaces of the separating mechanism N3 and the recovering mechanism N4 respectively.
According to the invention, the tea is dried by the cooperation of the air blowing device S3 and the air force conveying device S9, a heat-insulating drying cavity S8 is formed between the dust hood N5 and the conveying net S4, the tea can be dried rapidly, the tea can be scattered and evenly scattered by the leaf homogenizing device S18 arranged in the drying cavity S8 gently, the air circulation in the drying cavity S8 can be accelerated, and the drying efficiency of the tea is accelerated; the device has simple structure, stability and reliability, and ensures that the manufactured tea leaves are cleaner and the subsequent processing is simpler, thereby improving the efficiency of production and processing; meanwhile, the impurities are recovered, so that the method is convenient for unified treatment, avoids environmental pollution caused by the fact that the impurities are discharged into the air, and plays a role in protecting the environment.
The leaf homogenizing device S18 can be used in a flow production line, the homogenizing She Juchi S32 is made of flexible materials, a good leaf homogenizing effect can be achieved, tea leaves cannot be damaged, the tea leaves finished product S20 are intact, the quality of the tea leaves cannot be lost due to machining, and the profit of products is increased.
The position of the leaf homogenizing device S18 can be adjusted, and the displacement device S23 can be used for adjusting the heights of the center support S19 and the blades S20; the distance between the blade S20 and the center support S19 can be achieved through the distance adjusting device S22 between the blade S20 and the center support S19, so that the distance between the uniform She Juchi S32 and the conveying net S4 is adjusted, and fine adjustment of the height position of the blade S20 is achieved.
According to the invention, the uniform She Juchi S32 is connected with the blade S20 through the screw, the uniform She Juchi S32 can be replaced and cleaned, bacteria on the uniform She Juchi S32 are prevented from breeding, and the device is clean and sanitary.
The wind power conveying device S9 can uniformly convey wind power, so that tea can be uniformly dried, the flavor of the tea is kept, the tea can be used on a production line, the production speed of the tea is improved, and the production cost is reduced.
In the invention, after the wind is blown out by the blower, the wind is first turned once through the wind blowing box S13, and the turning can play a role in dispersing the airflow; then the air flow passes through the air supply channel S10 and is divided into two air flows by the partition plate S16, so that the air flows are prevented from being concentrated in the middle part of the air supply channel S10, and the secondary steering is carried out at the tail end of the air supply channel S10, so that the air flows are dispersed more uniformly; then through the air supply hopper S11, the grid S12 in the air supply hopper S11 can disperse the air flow more finely, eliminates dead angles without the air flow, can not form local overheat to influence the quality of tea, is very stable and uniform when entering the tea drying cavity, can uniformly dry the tea, and ensures the tea making quality.
In the invention, the air supply hopper S11 adopts a structure with big top and small bottom, and wind enters from a small opening and flows out from a big opening, thereby playing a role in stabilizing air flow; the small opening of the air sending hopper S11 is provided with the grid S12, so that the air flow is convenient to disperse when passing through the grid S12, and dead angles without air flow in the air sending hopper S11 are eliminated.
In the invention, the air supply hopper S11 is square or round, and the square air supply hopper S11 is convenient for arranging a plurality of air supply hoppers side by side, so that the non-interval drying can be realized.
At present, a tensioning rod is generally added to a conveying device, but the tensioning rod is easy to change when bearing pressure, the service life is short, and the tensioning rod is complex in structure and not easy to set; in addition, the tensioning lever is generally disposed inside the endless conveyor net S4, and cannot be used to press the conveyor net S4, and the conveyor net S4 is still prone to deviation. The anti-deviation conveying device can prevent the conveying net S4 from deviating in the tea drying process, prevent the conveying net S4 from being worn to cause tea loss, effectively prevent the conveying net S4 from wearing out the conveying device, and prolong the service life of the machine.
According to the anti-deviation conveying device, the anti-deviation wheel S24 is used for applying pressure to the conveying net S4, on one hand, friction force between the anti-deviation wheel S24 and the conveying net S4 can be increased to prevent the conveying net S4 from deviating, on the other hand, when the conveying net S4 deviates or loosens, the anti-deviation wheel S24 can adjust the vertical position in the through hole S25, the circumference of a conveying path of the conveying net S4 is increased, and the tensioning effect is achieved.
The deflection preventing wheels S24 are arranged in pairs, so that only one side of the deflection preventing wheels can be adjusted, and both sides of the deflection preventing wheels can be adjusted simultaneously, tensioning of the conveying net S4 and smooth conveying of tea leaves are ensured, and deflection of the conveying net S4 is prevented.
The anti-walk deflection wheel S24 has a simple structure, plays roles of net pressing and tensioning, is universal for various conveying devices, and has low cost and wide prospects.
In the invention, the frame is an assembled frame, the frame can be assembled according to actual needs to reach a set length so as to adapt to conveying nets S4 with different lengths, the operation is simple and convenient, and the tea leaves with different drying time lengths can be dried by only one machine, so that the cost and the area are saved.
The invention solves the problem that the existing dryer can not effectively discharge dust, steam and other impurities in the dryer, and has the advantages of good quality of the prepared tea, simple and convenient subsequent processing, improved production and processing efficiency and environmental protection.
Modifications and variations of the above embodiments will be apparent to those skilled in the art in light of the above teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (5)
1. The single-layer mesh belt dryer is characterized by comprising a frame, wherein a driving device (S2), a drying device and a dehumidifying and dedusting device (S1) are arranged on the frame; the drying device comprises a blowing device (S3), a wind power conveying device (S9), a conveying net (S4) for conveying tea leaves and a dust hood (N5), wherein a drying cavity (S8) is formed between the conveying net (S4) and the dust hood (N5); the blowing device (S3) is used for blowing air and conveying the air to the lower surface of the conveying net (S4) through the air conveying device (S9);
The dehumidifying and dedusting device (S1) comprises an exhaust fan (N1), a guide cover (N2), a separating mechanism (N3) and a recycling mechanism (N4), and an air outlet (N6) is formed in the dedusting cover (N5); the exhaust fan (N1) is arranged at an air outlet (N6) of the dust hood (N5) and sucks out air in the dryer and flows to the separating mechanism (N3) through the guide hood (N2); the separation mechanism (N3) is provided with an air outlet (N7) and a drainage air duct (N8); the separating mechanism (N3) is connected with the recycling mechanism (N4) through a transmission pipeline (N9), an exhaust hole (N10) is formed in the recycling mechanism (N4), and the recycling mechanism (N4) is used for recycling tea scraps and dust;
The drying device comprises a leaf homogenizing device (S18), the leaf homogenizing device (S18) is arranged in a drying cavity (S8), the leaf homogenizing device (S18) comprises a central support (S19), blades (S20) are detachably connected to the peripheral wall of the central support (S19) in the length direction, and a part, far away from the central support (S19), of each blade (S20) is detachably connected with a leaf homogenizing part She Juchi (S32); the end part of the central support (S19) in the length direction is connected with a rotating device (S21), and the rotating device (S21) drives the central support (S19) to rotate;
A distance adjusting device (S22) is further arranged between the blade (S20) and the center support (S19), and the distance adjusting device (S22) can adjust the distance between the blade (S20) and the center support (S19); displacement devices (S23) are arranged at two ends of the central support (S19) in the length direction, and the displacement devices (S23) are used for adjusting the distance between the central support (S19) and the conveying net (S4);
The edge of the length direction of the conveying net (S4) is provided with a deviation preventing wheel (S24), the frame is also provided with a through hole (S25) for fixing the deviation preventing wheel (S24), and the deviation preventing wheel (S24) can be fixed after moving in the vertical direction in the through hole (S25);
The separating mechanism (N3) further comprises a barrel (N11), the drainage air duct (N8) is arranged at the top of the barrel (N11) and is eccentrically arranged with the barrel (N11), the section of the drainage air duct (N8) is larger than the section area of the barrel (N11), the air outlet (N7) is arranged at the top of the barrel (N11) and is close to one end with small section area and is eccentrically arranged, and the barrel (N11) is further communicated with the transmission pipeline (N9);
The novel drainage device is characterized in that a connecting sealing part (N22) is further arranged between the transmission pipelines (N9), the connecting sealing part (N22) fixedly connects and seals the output channel (N23) and the incoming channel (N24) through a connecting piece, the connecting sealing part (N22) divides the transmission pipelines (N9) into two parts of the output channel (N23) and the incoming channel (N24), the output channel (N23) and the drainage air channel (N8) are connected into a whole, and the incoming channel (N24) and the recovery mechanism (N4) are connected into a whole.
2. The single-layer mesh belt dryer according to claim 1, wherein the wind power conveying device (S9) comprises an air supply channel (S10) and an air supply hopper (S11) which are sequentially connected with the air blowing device (S3), the thinner end of the air supply hopper (S11) is connected with the air supply channel (S10), a grid (S12) is arranged at the thinner end inside the air supply hopper (S11), and the grid (S12) divides the air supply hopper (S11) into a plurality of air supply openings; an air blowing box (S13) is further arranged between the air blowing device (S3) and the air blowing channel (S10), and the air blowing box (S13) is used for dispersing wind power blown out by the air blowing device (S3); a lower opening (S15) is formed below one surface, close to the air blowing device (S3), of the air blowing box (S13), and the lower opening (S15) is used for being in butt joint with the air blowing device (S3); an upper opening (S14) is arranged above one surface of the air blowing box (S13) close to the air blowing channel (S10), and the upper opening (S14) is used for being in butt joint with the air blowing channel (S10).
3. The single-layer mesh belt dryer according to claim 2, characterized in that the grid (S12) is a crisscrossed grid (S12), and the height of the grid (S12) is 1/3-2/3 of the height of the air supply hopper (S11); a partition board (S16) is arranged in the air supply channel (S10), the partition board (S16) divides the air supply channel (S10) into an upper air supply cavity and a lower air supply cavity or a left air supply cavity and a right air supply cavity, and the partition board (S16) is used for dividing air; the air supply channel (S10) is provided with a cleaning window (S17), the cleaning window (S17) is movably connected with the air supply channel (S10), and the cleaning window (S17) is used for cleaning or overhauling the air supply channel (S10).
4. The single-layer mesh belt dryer according to claim 1, wherein a guide fan (N15) is further disposed in the guide cover (N2), the guide fan (N15) comprises a fan shaft (N16), a fan blade (N17) disposed on the fan shaft (N16), and a fixing portion (N18) disposed on the fan blade (N17), and the guide fan (N15) is used for conveying gas into the separation mechanism (N3).
5. The single-layer mesh belt dryer according to claim 4, wherein the fan shaft (N16) is provided with an air guiding protrusion (N19), the air guiding protrusion (N19) is provided in a cone structure, and the fan blades (N17) are provided in an inclined structure and uniformly distributed on the fan shaft (N16).
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| CN114877659B (en) * | 2022-05-23 | 2023-09-22 | 盐城腾一达环保设备有限公司 | Two side exhaust type industrial dryer capable of uniformly drying |
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