CN114018030A - Storehouse type bagasse drying device - Google Patents
Storehouse type bagasse drying device Download PDFInfo
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- CN114018030A CN114018030A CN202111520048.1A CN202111520048A CN114018030A CN 114018030 A CN114018030 A CN 114018030A CN 202111520048 A CN202111520048 A CN 202111520048A CN 114018030 A CN114018030 A CN 114018030A
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- bin
- bagasse
- mesh belt
- drying
- discharging
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- 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
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- 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
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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- 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
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
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- 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
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- 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
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- 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
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- 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
- F26B2200/02—Biomass, e.g. waste vegetative matter, straw
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a bin type bagasse drying device which comprises a drying bin, wherein a horizontally moving annular mesh belt is arranged in the drying bin, a feeding bin and a mesh belt cleaning device are arranged at a feeding end, a discharging bin and a bagasse sweeper are arranged at a discharging end, a heat exchanger is arranged at the top, a material turning device is arranged at the middle, a plurality of exhaust pipes are arranged on one side of the lower portion, a material distributing machine is arranged in the feeding bin, a discharging machine is arranged below the discharging bin, the mesh belt is arranged in the middle of the drying bin and below the feeding bin along the length direction of equipment, the tail portion extends out of the feeding bin, the head portion extends into the discharging bin, the mesh belt is driven by an electric driving roller to horizontally and circularly move in the drying bin, bagasse is conveyed to the drying bin from the feeding bin to be dried, then is conveyed to the discharging bin, and is conveyed to a lower production process from the discharging bin to the discharging machine. The invention can reduce the water content of the bagasse by 8-10 percent, thereby improving the combustion efficiency of the boiler, reducing the emission of flue gas and saving more bagasse.
Description
Technical Field
The invention belongs to the technical field of bagasse drying equipment, and particularly relates to a bin type bagasse drying device.
Background
Sugar is produced by a squeezing juice extraction process in a sugar cane factory in China, bagasse is mainly used as boiler fuel in the sugar cane factory, the moisture of the bagasse is generally 48% -50%, the moisture is too high, incomplete combustion is easy to cause, the smoke discharge amount is large, and the environmental protection pressure of smoke discharge exists. Meanwhile, the bagasse is used as a renewable clean biomass material, and can be used for high-value comprehensive utilization of bagasse for papermaking, fiberboard preparation, feed preparation, active carbon preparation and the like besides being used for boiler fuel power generation. In the process of making sugar from sugarcane, 0.22 ton of bagasse is averagely produced in each ton of sugarcane, the moisture content of the bagasse is reduced by 1%, and the combustion value of each kilogram of bagasse is increased by about 50 kcal. Therefore, by reducing the moisture of the bagasse and improving the combustion value of the bagasse, the combustion efficiency of the boiler is improved, the smoke emission is reduced, a large amount of bagasse is saved, the packing rate of the bagasse is improved, the bagasse is sold outside to be an effective measure for improving the comprehensive utilization rate of resources of a sugar refinery, and the cost reduction and efficiency improvement and the green low-carbon circular development economy are realized. However, most of the existing cyclone hot air drying and flue gas drying technologies used in sugar mills have the problems of insufficient drying effect, small bagasse treatment capacity and the like, and are difficult to meet the development requirements of the sugar mills.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a bin type bagasse drying device, wherein bagasse is conveyed in a closed bin body by using a temperature-resistant annular mesh belt with good air permeability, high-temperature hot air is pumped in during the conveying process to continuously heat and dry the bagasse, the moisture of the bagasse is reduced by 8% -10%, and the combustion value of the bagasse is improved to the maximum extent, so that the combustion efficiency of a boiler is improved, the smoke emission is reduced, and more bagasse is saved.
In order to achieve the purpose, the invention adopts the technical scheme that:
a bin type bagasse drying device comprises a drying bin 1, wherein a horizontally moving annular mesh belt 2 is arranged in the drying bin 1, a feeding bin 3 and a mesh belt cleaning device 4 are arranged at the feeding end of the drying bin 1, a discharging bin 5 and a bagasse sweeper 6 are arranged at the discharging end of the drying bin 1, a heat exchanger 7 is arranged at the top of the drying bin 1, a material turning device 8 is arranged in the middle of the drying bin 1, a plurality of exhaust pipes 9 are arranged on one side of the lower portion of the drying bin 1, a material distributing machine 10 is arranged in the feeding bin 3, a discharging machine 11 is arranged below the discharging bin 5, the mesh belt 2 is arranged in the middle of the drying bin 1 and below the feeding bin 3 along the length direction of the device, the tail of the mesh belt extends out of the feeding bin 3, the head of the mesh belt extends into the discharging bin 5, the mesh belt horizontally and annularly moves in the drying bin 1 under the driving of an electric driving roller 12, and conveys bagasse from the feeding bin 3 to the drying bin 1 for drying, then conveyed to a discharging bin 5, and then discharged to a discharging machine 11 from the discharging bin 5, and conveyed to the next production process by the discharging machine 11.
The drying bin 1 is of a closed bin body structure, the bin body of the drying bin 1 is divided into an upper part and a lower part through a mesh belt 2, the upper part is a high-temperature air inlet area and a bagasse conveying and drying area, the lower part is an air exhaust area, air is heated to a set temperature through a heat exchanger 7 and then is exhausted to the upper part of the drying bin 1, the bagasse on the mesh belt 2 is subjected to continuous contact heating, an air exhaust pipe 9 at the lower part of the drying bin 1 is connected with an air exhaust system, the high-temperature air at the upper part of the drying bin 1 forcibly penetrates through the bagasse and the mesh belt 2, hot air and water vapor generated by heating are forcibly exhausted out of the drying bin 1 and enter the air exhaust system for recycling or discharging.
The mesh belt 2 is a temperature-resistant annular conveying belt with good air permeability, the head of the mesh belt 2 is fixed on a discharge end electric driving roller 12, the tail of the mesh belt 2 is fixed on a feed end driven roller 16, the upper layer is supported and installed in the drying bin 1 by an upper carrier roller 13, the lower layer is supported and installed outside the drying bin 1 by a lower carrier roller 14, a bend roller 15 and a deviation correcting bend roller 18, two end heads of the driven roller 16 are provided with tensioning devices 17 for adjusting and tensioning the level of the mesh belt 2, the deviation correcting bend roller 18 automatically corrects the deviation of the mesh belt through an inductor to keep the mesh belt to run safely, and the electric driving roller 12 is driven by a variable frequency motor.
And the mesh belt cleaning device 4 is arranged on the inner side of the lower layer at the tail part of the mesh belt 2.
The bagasse sweeping device 6 is arranged outside the mesh belt 2 below the electric driving roller 12.
The right port of the feeding bin 3 is connected with the port of the feeding end at the upper part of the drying bin 1, the ports of the lower ends of the two side plates extend to the lower part of the upper layer of the mesh belt 2, the left port and the top of the feeding bin are sealed by steel plates to form a sealed box body, 2 feeding ports 19 are arranged on the top surface of the feeding bin 3 and are connected with a hopper of a bagasse feeding system of a sugar refinery in a sealed mode to feed bagasse to the feeding bin 3, and the bagasse is continuously and evenly put into the mesh belt 2 through the distributing machine 10.
The distributing machine 10 is arranged above the mesh belt 2 along the width direction of the mesh belt 2, is vertical to the length direction of the mesh belt 2, is arranged on two side surfaces of the feeding bin 3 by using a bearing seat, the bearing seat is provided with a distributing machine lifting mechanism 20, the distributing machine 10 adjusts the distance between the distributing machine 10 and the mesh belt 2 according to the bagasse incoming material condition and the required bagasse discharging moisture, determines the thickness and the speed of the bagasse material layer conveyed by the mesh belt 2, the distributing machine 10 comprises an outer screw shaft 21 and an inner screw shaft 22, the outer screw shaft 21 and the inner screw shaft 22 are arranged in a distributing machine tank 23 in parallel at a certain distance, are fixed on two end surfaces of the distributing machine tank 23 by using the bearing seat, are driven by a configured variable frequency speed reducing motor, and rotate inwards and reversely in the distributing machine tank 23 according to the suitable rotating speed according to the bagasse incoming material condition and the required bagasse material layer thickness of the mesh belt 2, the distributing machine tank body 23 is composed of two arc grooves concentric with the outer screw shaft 21 and the inner screw shaft 22, and can convey materials reversely at the same time, the upper portion of the tank body is of an open structure to receive bagasse entering the feeding bin 3, an arc fracture at the outer side of the tank body below the outer screw shaft 21 is a blanking port, the outer screw shaft 21 is used for uniformly throwing the bagasse onto the mesh belt 2, the residual bagasse which cannot be thrown is conveyed to the tail portion of the distributing machine tank body 23, the head portion of the distributing machine tank body 23 is conveyed back through the inner screw shaft 22, and the outer screw shaft 21 conveys the thrown materials again.
The upender 8 includes the stirring pivot 24, and the equipartition has stirring pole 25 in the stirring pivot 24, and the upender 8 uses the bearing frame to install in 1 upper portion both sides face in dry storehouse, and stirring pole 25 stretches into in the bagasse charging course on the guipure, and it is no longer than bed of material thickness 2/3 to stretch into length, stirring pivot 24 is rotatory under gear motor's drive, and the direction of rotation is the reversal with guipure 2 traffic direction, turns over the bagasse and dials through stirring pole 25.
The discharging bin 5 is of a closed box structure, a left port of the discharging bin 5 is connected with a discharging end port of the drying bin 1, the lower portion of the box body extends to the position below the bagasse sweeper 6, the outer side of the bottom of the box body is connected with the upper portion of the discharging machine 11 in a closed mode, and bagasse fed by the mesh belt 2 and bagasse swept by the bagasse sweeper 6 are received to the discharging machine 11.
The discharging machine 11 is a U-shaped groove screw conveyer structure, is arranged below the discharging bin 5 along the width direction of the mesh belt 2, is connected with the lower part of the discharging bin 5 in a sealing way at the upper part of the U-shaped groove screw conveyer structure, and is provided with a discharging port 26 at the lower part of the discharging end of the U-shaped groove screw conveyer structure, so that the received bagasse is conveyed to the lower process equipment.
The invention has the beneficial effects.
The invention uses the temperature-resistant annular mesh belt with good air permeability to convey the bagasse, and in the closed drying bin, the bagasse is forcibly heated and dried by high-temperature hot air in the conveying process through air draft so as to obtain a better drying effect, and the moisture of the bagasse is reduced by 8% -10%, so that the combustion value of the bagasse is increased, the combustion heat efficiency of a boiler is improved, the smoke emission is reduced, a large amount of bagasse is saved, the packing rate of the bagasse is improved, and the bagasse is sold outside to increase the economic income of a sugar refinery.
The water content of the bagasse is 48%, the water content is reduced to 40% after the treatment of the invention, which means that the heating value is increased by 20.2%, and the bagasse (48% water content) is saved by about 5500 tons every year according to the calculation of medium-sized sugar manufacturing enterprises squeezing 5000 tons of sugarcane every day. According to the economic value, the sale price of each ton of bagasse is 300 yuan, and 165 ten thousand of direct economic income can be generated; calculated according to energy saving, 1520 tons of standard coal can be saved;
from comprehensive utilization, the waste residues of sugar enterprises are fully utilized; from the aspect of environmental protection, the emission of combustion waste residue and carbon dioxide is greatly reduced, and powerful technical support is provided for realizing carbon peak reaching and carbon neutralization in the traditional industry.
In addition, the invention can configure the mesh belts with different conveying capacities according to the bagasse amount of the sugar refinery, and can adjust the thickness and the speed of the bagasse material layer conveyed by the mesh belts according to the incoming bagasse situation of the sugar refinery and the required discharge water content of the bagasse, thereby meeting the balanced production requirements of the sugar refinery with different scales.
Description of the drawings:
FIG. 1 is a schematic structural view of a bin type bagasse drying apparatus according to the present invention.
Fig. 2 is a schematic cross-sectional view of a drying chamber according to the present invention.
FIG. 3 is a schematic top view of a bin type bagasse drying apparatus according to the present invention.
Fig. 4 is a schematic cross-sectional view of the distributor of the present invention.
FIG. 5 is a schematic cross-sectional view of the tripper of the present invention.
The main parts in the figure are as follows:
1-drying bin, 2-mesh belt, 3-feeding bin, 4-mesh belt cleaning device, 5-discharging bin, 6-bagasse sweeper, 7-heat exchanger, 8-turner, 9-exhaust pipe, 10-distributor, 11-discharging machine, 12-electric driving roller, 13-upper roller, 14-lower roller, 15-bend roller, 16-driven roller, 17-tensioning device, 18-deviation correcting bend roller, 19-feeding hole, 20-distributor lifting mechanism, 21-outer screw shaft, 22-inner screw shaft, 23-distributor trough body, 24-turning rotating shaft, 25-turning rod and 26-discharging hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-5: a bin type bagasse drying device comprises a drying bin 1, wherein an annular mesh belt 2 capable of moving horizontally is arranged in the drying bin 1, a feeding bin 3 and a mesh belt cleaning device 4 are arranged at the front end of the drying bin 1, a discharging bin 5 and a bagasse sweeper 6 are arranged at the rear end of the drying bin, an annular heater 7 is arranged at the top of the drying bin, an agitator 8 is arranged in the middle of the drying bin 1, a plurality of exhaust pipes 9 are arranged on one side of the lower portion of the drying bin 3, a material distributor 10 is arranged in the feeding bin 3, a discharging machine 11 is arranged below the discharging bin 5, the mesh belt 2 is arranged in the middle of the drying bin 1 and below the feeding bin 3 along the length direction of the drying bin 1, the tail of the mesh belt extends out of the feeding bin 3, the head of the mesh belt extends into the discharging bin 5, the mesh belt 2 is driven by an electric driving roller 12 to move horizontally and annularly in the drying bin 1, bagasse is conveyed to the discharging bin 5 after being dried from the feeding bin 3 to the drying bin 1, and then conveyed to the discharging machine 11, conveyed to the next production process by the discharging machine 11.
Further, the drying bin 1 is a closed bin body structure, the bin body is divided into an upper part and a lower part through a mesh belt 2, the upper part is a high-temperature air inlet area and a bagasse conveying and drying area, the lower part is an air exhaust area, air is heated to a set temperature through a heat exchanger 7 and then is sucked into the upper part of the drying bin 1 to continuously contact and heat bagasse on the mesh belt 2, an air exhaust pipe 9 at the lower part of the drying bin 1 is connected with an air exhaust and delivery system, so that the high-temperature air at the upper part of the drying bin 1 forcibly penetrates through the bagasse and the mesh belt, hot air and water vapor generated by heating are forcibly exhausted out of the drying bin 1 and enter the air exhaust and delivery system to be recycled or discharged. Bagasse is forced to be continuously heated in the conveying process of the mesh belt 2 through air draft at the lower part of the drying bin 1, so that moisture is fully reduced, the upper part of the drying bin 1 is kept in a negative pressure working condition, high-temperature air flow is enhanced, and the bagasse is effectively prevented from floating upwards regularly. And heat insulation layers are laid on the top surface of the upper part of the drying bin 1 and the inner parts of the two side surfaces of the drying bin to prevent heat loss.
Further, the mesh belt 2 is a temperature-resistant annular conveying belt with good air permeability, the head of the mesh belt 2 is fixed on an electric roller 12 at the discharge end, the tail of the mesh belt 2 is fixed on a driven roller 16 at the feed end, the upper layer of the mesh belt is supported and installed in the drying bin 1 by an upper carrier roller 13, the lower layer of the mesh belt is supported and installed outside the drying bin 1 by a lower carrier roller 14, a bend roller 15 and a deviation correcting bend roller 18, two end heads of the driven roller 16 are provided with tensioning devices 17 for adjusting and tensioning the level of the mesh belt 2, the deviation correcting bend roller 18 can automatically correct the deviation of the mesh belt through an inductor to keep the mesh belt to run safely, the electric driving roller 12 is driven by a variable frequency motor, the motor rotating speed can be adjusted according to the thickness of a bagasse material layer and the moisture set by an automatic control system of the device, so that the mesh belt 2 can be adjusted and kept to move at a proper speed, and bagasse can be conveyed and dried uniformly.
Further, the mesh belt cleaning device 4 is arranged at the inner side of the lower layer at the tail part of the mesh belt 2, and high-pressure water is used for carrying out jet type back washing on the mesh belt 2 according to the time and period set by the automatic control system of the equipment so as to keep the air permeability of the mesh belt 2.
Further, the bagasse cleaning device 6 is arranged outside the mesh belt 2 below the electric driving roller 12, and after the mesh belt 2 is blanked, the mesh belt surface is cleaned, so that bagasse is prevented from adhering to the mesh belt surface to affect the air permeability of the mesh belt 2.
Further, feeding storehouse 3, right port and 1 upper portion feed end port in dry storehouse are connected, and port extends to guipure 2 upper strata below under the both sides board, and left side port, top are sealed with the steel sheet, have formed the closed box, 3 top surfaces in feeding storehouse are provided with 2 feed inlets 19, with closed being connected of sugar refinery bagasse feeding system hopper to send the bagasse to feeding storehouse 3, evenly put in the bagasse in succession on the guipure through distributing machine 10.
Further, the distributing machine 10 is installed above the mesh belt along the width direction of the mesh belt 2, is perpendicular to the length direction of the mesh belt, is installed on two side surfaces of the feeding bin 3 by using a bearing seat, the bearing seat is provided with a distributing machine lifting mechanism 20, the distributing machine 10 can adjust the distance between the distributing machine 10 and the mesh belt 2 according to the supplied bagasse material condition and the required bagasse discharging moisture, so as to determine the thickness and the speed of the bagasse material layer conveyed by the mesh belt 2, the distributing machine 10 comprises an outer screw shaft 21 and an inner screw shaft 22, the outer screw shaft 21 and the inner screw shaft 22 are installed in the distributing machine groove body 23 in parallel at a certain distance, are fixed on two end surfaces of the distributing machine groove body 23 by using the bearing seat, are driven by a configured variable frequency speed reduction motor, and can rotate reversely inwards in the distributing machine groove body 23 according to the supplied bagasse material condition and the required bagasse material layer thickness of the mesh belt 2, the distributing machine cell body 23 comprises two circular arc grooves concentric with the outer screw shaft 21 and the inner screw shaft 22, so that a material cell body capable of being reversely conveyed simultaneously is formed, an open structure is arranged above the cell body to receive bagasse entering the feeding bin 3, an arc fracture at the outer side of the cell body below the outer screw shaft 21 is a blanking port, the outer screw shaft 21 is used for uniformly throwing the bagasse onto the mesh belt 2, the residual bagasse which cannot be thrown is conveyed to the tail part of the distributing machine cell body 23, the head part of the distributing machine cell body 23 is conveyed back through the inner screw shaft 22, and the material is conveyed again through the outer screw shaft 21 to realize balanced material throwing, so that the bagasse is prevented from being accumulated in the cell body.
Further, the material turning device 8 comprises a material turning rotating shaft 24, material turning rods 25 are evenly distributed on the material turning rotating shaft 24, the material turning device 8 is installed on two side faces of the upper portion of the drying bin 1 through bearing seats, the material turning rods 25 extend into bagasse material layers on the net belt, the extending length of the material turning rods is not more than the material layer thickness 2/3, so that air leakage of the net belt is prevented, the material turning rotating shaft 24 rotates under the driving of a speed reduction motor, the rotating direction and the bagasse running direction are reversed, bagasse is turned over through the material turning rods 25, and inner-layer bagasse can be fully contacted with high-temperature hot air.
Further, the discharging bin 5 is of a closed box structure, a left port is connected with a discharging end port of the drying bin 1, the lower portion of the box extends to the position below the bagasse sweeper 6, and the outer side of the bottom of the box is connected with the upper portion of the discharging machine 11 in a closed mode so as to receive bagasse fed by the mesh belt 2 and the bagasse swept by the bagasse sweeper 6 to the discharging machine 11.
Further, ejection of compact machine 11, for U type groove screw conveyer structure, installs in ejection of compact storehouse 5 below along 2 width direction of guipure, and U type groove upper portion and 5 lower parts of ejection of compact storehouse are connected sealedly, and the discharge end extends to outside ejection of compact storehouse 5, and U type groove discharge end lower part is provided with discharge gate 26 to carry received bagasse to process equipment down.
The working principle of the invention is as follows:
the device combines the drying and the conveying of the bagasse by utilizing the characteristic of loose and air permeability of the bagasse, the bagasse is conveyed in a closed drying bin by using a temperature-resistant annular mesh belt with good air permeability, the drying bin is divided into an upper part and a lower part by the mesh belt, the top surface of the upper part is provided with a plurality of heat exchangers, one side surface of the lower part is provided with a plurality of air suction ports, the air suction ports are connected with an air suction system, the upper part is a high-temperature hot air inlet area and a bagasse conveying drying area, and the lower part is an air suction area. Bagasse is thrown into the feeding bin from the top of the feeding bin at the tail part of the drying bin, is evenly thrown into the mesh belt through a material distributor in the feeding bin according to the set material layer thickness, is conveyed to the discharging bin at the head part of the drying bin along with the mesh belt, is then discharged to a discharging machine, and is conveyed to the next production procedure through the discharging machine. The air is heated to a set temperature by the heat exchanger, is pumped into the upper part of the drying bin, continuously heats the bagasse conveyed by the mesh belt, penetrates through a bagasse material layer and the mesh belt, and is forcibly pumped out from the lower part of the drying bin. The bagasse is continuously heated and dried by high-temperature air in the conveying process, when the bagasse is conveyed to the middle part, the material turning device is used for turning the bagasse material layer, so that the bagasse is fully contacted with the high-temperature hot air to enhance drying, and the generated water vapor is forcibly pumped out from the lower part of the drying bin, so that the moisture of the bagasse is reduced by 8-10%. The drying bin adopts an air inlet and outlet mode that high-temperature hot air enters the upper part and air is forcibly pumped out from the lower part, so that the upper part of the drying bin is kept under a negative pressure working condition, the air flow direction is vertical to the conveying direction of the bagasse, the flow of the high-temperature air at the upper part can be enhanced, the bagasse is effectively prevented from floating upwards irregularly, and a heat insulation layer is laid inside the drying bin to prevent heat loss. In order to keep the air permeability of the mesh belt, the head of the mesh belt is provided with a bagasse sweeper, and the mesh surface is cleaned after the mesh belt falls off, so that air holes of the mesh belt are prevented from being blocked by bagasse; the tail part of the mesh belt is provided with a mesh belt cleaning device, and the mesh belt is subjected to jet type back washing by using high-pressure water at regular time. Meanwhile, the mesh belt and the material distributor can adjust the running speed of the bagasse dryer according to the feeding condition of the bagasse and the moisture condition of the dried bagasse so as to keep the drying effect of the bagasse.
Claims (10)
1. The bin type bagasse drying device is characterized by comprising a drying bin (1), wherein a horizontally moving annular mesh belt (2) is arranged in the drying bin (1), a feeding bin (3) and a mesh belt cleaning device (4) are arranged at the feeding end of the drying bin (1), a discharging bin (5) and a bagasse sweeper (6) are arranged at the discharging end of the drying bin (1), a heat exchanger (7) is arranged at the top of the drying bin (1), a material turning device (8) is arranged in the middle of the drying bin (1), a plurality of exhaust pipes (9) are arranged on one side of the lower portion of the drying bin (1), a material distributor (10) is arranged in the feeding bin (3), a discharging machine (11) is arranged below the discharging bin (5), the mesh belt (2) is arranged in the middle of the drying bin (1) and below the feeding bin (3) along the length direction of equipment, the tail portion of the mesh belt extends out of the feeding bin (3), and the head portion of the mesh belt extends into the discharging bin (5), carry out horizontal annular under the drive of electronic initiative cylinder (12) and remove in drying storehouse (1), carry the bagasse to drying storehouse (1) from feeding storehouse (3) and carry out the drying back, carry again to ejection of compact storehouse (5), from ejection of compact storehouse (5) blanking to ejection of compact machine (11), carry to production processes down by ejection of compact machine (11).
2. The bin type bagasse drying device according to claim 1, wherein the drying bin (1) is a closed bin body structure, a bin body of the drying bin (1) is divided into an upper part and a lower part through a mesh belt (2), the upper part is a high-temperature air inlet area and a bagasse conveying and drying area, the lower part is an air exhaust area, air is heated to a set temperature through a heat exchanger (7) and then is pumped into the upper part of the drying bin (1), bagasse on the mesh belt (2) is subjected to continuous contact heating, and an air exhaust pipe (9) at the lower part of the drying bin (1) is connected with an air exhaust and delivery system, so that the high-temperature air at the upper part of the drying bin (1) forcibly penetrates through the bagasse and the mesh belt (2), and hot air and water vapor generated by heating are forcibly exhausted out of the drying bin (1) and enter the air exhaust and delivery system for recycling or discharging.
3. The bin type bagasse drying device according to claim 1, wherein the mesh belt (2) is a temperature-resistant endless conveyor belt with good air permeability, the head of the mesh belt (2) is fixed to a discharge end electric driving roller (12), the tail of the mesh belt (2) is fixed to a feed end driven roller (16), the upper layer is supported and mounted in the drying bin (1) through an upper carrier roller (13), the lower layer is supported and mounted outside the drying bin (1) through a lower carrier roller (14), a direction-changing roller (15) and a deviation correcting direction-changing roller (18), two ends of the driven roller (16) are provided with tensioning devices (17) for adjusting and tensioning the level of the mesh belt (2), the deviation correcting direction-changing roller (18) automatically corrects the mesh belt through an inductor to keep the mesh belt running safely, and the electric driving roller (12) is driven by a variable frequency motor.
4. The bin type bagasse drying device according to claim 1, wherein the mesh belt cleaning device (4) is arranged at the lower inner side of the tail part of the mesh belt (2).
5. A bin bagasse drying apparatus according to claim 1, wherein the bagasse sweeping means (6) is disposed outside the mesh belt (2) below the electric driving drum (12).
6. The bin type bagasse drying device according to claim 1, wherein the right port of the feeding bin (3) is connected with the port of the feeding end at the upper part of the drying bin (1), the lower ports of the two side plates extend to the lower part of the upper layer of the mesh belt (2), the left port and the top part are sealed by steel plates to form a sealed box body, the top surface of the feeding bin (3) is provided with 2 feeding ports (19) which are hermetically connected with a hopper of a bagasse feeding system of a sugar refinery, bagasse is sent to the feeding bin (3), and the bagasse is continuously and uniformly thrown onto the mesh belt (2) through the distributing machine (10).
7. The bin type bagasse drying device according to claim 1, wherein the distributing machine (10) is installed above the mesh belt (2) along the width direction of the mesh belt (2) and is perpendicular to the length direction of the mesh belt (2), a bearing seat is installed on two side surfaces of the feeding bin (3), a distributing machine lifting mechanism (20) is arranged on the bearing seat, the distance between the distributing machine (10) and the mesh belt (2) is adjusted according to the incoming bagasse material condition and the required bagasse discharging moisture of the distributing machine (10), the thickness and the speed of the bagasse material layer conveyed by the mesh belt (2) are determined, the distributing machine (10) comprises an outer screw shaft (21) and an inner screw shaft (22), the outer screw shaft (21) and the inner screw shaft (22) are installed in the distributing machine groove body (23) in parallel at a certain distance, the bearing seat is fixed on two end surfaces of the distributing machine groove body (23), and the outer screw shaft (21), The inner screw shaft (22) is driven by a configured variable frequency speed reducing motor to rotate reversely inwards in the trough body (23) of the distributing machine according to the bagasse incoming material condition and the bagasse layer thickness required by the mesh belt (2) at a proper rotating speed, the distributing machine trough body (23) consists of two arc grooves which are concentric with the outer screw shaft (21) and the inner screw shaft (22) to form a trough body capable of simultaneously and reversely conveying materials, an open structure is arranged above the trough body, the arc fracture at the outer side of the groove body positioned below the outer spiral shaft (21) for receiving the bagasse entering the feeding bin (3) is used as a blanking port, the outer spiral shaft (21) is used for uniformly throwing the bagasse onto the mesh belt (2), the residual bagasse which cannot be thrown is conveyed to the tail part of the trough body (23) of the distributing machine, is conveyed back to the head of a trough body (23) of the material distributor through an inner screw shaft (22), and is conveyed again by an outer screw shaft (21).
8. The bin type bagasse drying device according to claim 1, wherein the turner (8) comprises a turning rotating shaft (24), turning rods (25) are uniformly distributed on the turning rotating shaft (24), the turner (8) is installed on two side faces of the upper portion of the drying bin (1) through bearing seats, the turning rods (25) extend into a bagasse material layer on the mesh belt, the extending length of the turning rods does not exceed the material layer thickness 2/3, the turning rotating shaft (24) is driven by a speed reduction motor to rotate, the rotating direction of the turning rods is reverse to the running direction of the mesh belt (2), and bagasse is turned and poked through the turning rods (25).
9. The bin type bagasse drying device according to claim 1, wherein the discharging bin (5) is of a closed box structure, a left port of the discharging bin (5) is connected with a discharging end port of the drying bin (1), the lower part of the box body extends to a position below the bagasse sweeper (6), the outer side of the bottom of the box body is connected with the upper part of the discharging machine (11) in a closed manner, and bagasse fed by the mesh belt (2) and bagasse swept by the bagasse sweeper (6) are received to the discharging machine (11).
10. The bin type bagasse drying device according to claim 1, wherein the discharging machine (11) is a U-shaped groove screw conveyor structure, and is installed below the discharging bin (5) along the width direction of the mesh belt (2), the upper part of the U-shaped groove screw conveyor structure is connected with the lower part of the discharging bin (5) in a sealing manner, and the discharging end extends out of the discharging bin (5), and the lower part of the discharging end of the U-shaped groove screw conveyor structure is provided with a discharging port (26) for conveying the received bagasse to the next process equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111520048.1A CN114018030A (en) | 2021-12-13 | 2021-12-13 | Storehouse type bagasse drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111520048.1A CN114018030A (en) | 2021-12-13 | 2021-12-13 | Storehouse type bagasse drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114018030A true CN114018030A (en) | 2022-02-08 |
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ID=80068699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111520048.1A Pending CN114018030A (en) | 2021-12-13 | 2021-12-13 | Storehouse type bagasse drying device |
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| Country | Link |
|---|---|
| CN (1) | CN114018030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115493387A (en) * | 2022-08-12 | 2022-12-20 | 麦卡尼食品设备(中山)有限公司 | Heatable and refrigeratable dryer |
-
2021
- 2021-12-13 CN CN202111520048.1A patent/CN114018030A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115493387A (en) * | 2022-08-12 | 2022-12-20 | 麦卡尼食品设备(中山)有限公司 | Heatable and refrigeratable dryer |
| CN115493387B (en) * | 2022-08-12 | 2023-09-22 | 麦卡尼食品设备(中山)有限公司 | Heatable and coolable dryer |
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