CN105651006B - Multi-functional, environment-friendly and energy-efficient vacuum belt drier group and its powder drying means - Google Patents

Multi-functional, environment-friendly and energy-efficient vacuum belt drier group and its powder drying means Download PDF

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Publication number
CN105651006B
CN105651006B CN201410628905.3A CN201410628905A CN105651006B CN 105651006 B CN105651006 B CN 105651006B CN 201410628905 A CN201410628905 A CN 201410628905A CN 105651006 B CN105651006 B CN 105651006B
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CN
China
Prior art keywords
vacuum
tank body
main tank
feeding
conveyer belt
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CN201410628905.3A
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CN105651006A (en
Inventor
陆文光
顾晓峰
刘伟男
赵厚林
臧德耿
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CHANGZHOU YUTONG DRYING EQUIPMENT CO., LTD.
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CHANGZHOU YUTONG DRYING EQUIPMENT Co Ltd
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Priority to CN201410628905.3A priority Critical patent/CN105651006B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/18Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/02Machines 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
    • F26B17/04Machines 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00Other disintegrating devices or methods
    • B02C19/18Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
    • B02C19/186Use of cold or heat for disintegrating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B1/00Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
    • F26B1/005Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids by means of disintegrating, e.g. crushing, shredding, milling the materials to be dried
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00Heating arrangements
    • F26B23/04Heating arrangements using electric heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00Heating arrangements
    • F26B23/10Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001Handling, e.g. loading or unloading arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001Handling, e.g. loading or unloading arrangements
    • F26B25/002Handling, e.g. loading or unloading arrangements for bulk goods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005Treatment of dryer exhaust gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/32Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/041Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying flowable materials, e.g. suspensions, bulk goods, in a continuous operation, e.g. with locks or other air tight arrangements for charging/discharging
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/048Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum in combination with heat developed by electro-magnetic means, e.g. microwave energy

Abstract

The present invention relates to the powder drying means of a kind of multi-functional, environment-friendly and energy-efficient vacuum belt drier group and the application unit, dryer group includes:Vacuum belt drier, vacuum belt drier include cross direction profiles and closed main tank body, it is characterised in that:The feeding mouth of the main tank body front end is connected through the first sealing valve with the bottom discharge mouth of a granulator, and the top feeding mouth of granulator is connected through the second sealing valve with the bottom discharge mouth of a vacuum feeding tank;It is connected with pulverizer, the 3rd sealing valve, discharging intermediate bin on the discharging opening of the main tank body rear end in turn;It is connected with and vacuumizes and solvent recovering system on the exhaust outlet of the main tank body.The feeding mouth of the neighbouring main tank body and the microwave applicator for being used for that on distributing device and on conveyer belt leading section material to be dried is provided with above the distributing device, the inner side fore-and-aft direction of the conveyer belt is sequentially provided with steam heater, hot-water heater and the cooler of distribution parallel with conveyer belt.

Description

Multi-functional, environment-friendly and energy-efficient vacuum belt drier group and its powder drying means
Technical field
The present invention relates to the field that drying equipment and wet mash are dried, more particularly to one kind is multi-functional, environment-friendly and energy-efficient is true Blanking bar formula dryer group and application the unit powder drying means, in particular for containing low melting point solvent, solid-like it is wet The drying of powder.
Background technology
The existing drying equipment for powder, certain potential safety hazard be present;Reason is the powder in air in drying process Bulk concentration reaches certain proportion, just easily meets naked light and explodes.Therefore how to powder drying process, powder is reduced or avoided The generation of dirt, and then ensure production safety, it is this area technical barrier to be solved.
The content of the invention
Done the technical problem to be solved in the present invention is to provide a kind of vacuum belt drier group and using the powder of the unit Drying method, to solve the technical problem of powder drying process safety.
In order to solve the above-mentioned technical problem, the invention provides a kind of vacuum belt drier group, including:Vacuum belt is done Dry machine, vacuum belt drier include cross direction profiles and closed main tank body, and the feeding mouth of the main tank body front end is through the first sealing Valve is connected with the bottom discharge mouth of a granulator, bottom of the top feeding mouth through the second sealing valve Yu a vacuum feeding tank of granulator Portion's discharging opening is connected;It is connected with pulverizer, the 3rd sealing valve, discharging intermediate bin on the discharging opening of the main tank body rear end in turn; It is connected with and vacuumizes and solvent recovering system on the exhaust outlet of the main tank body.Wherein, connect and crush on the discharging opening of main tank body Machine so that pulverizer can be implemented to crush under vacuum conditions so that can directly be packed, avoided from the product of pulverizer output Secondary pollution, moisture absorption, it is ensured that the aridity of product, and secondary operation is not needed, simplify production process.
Distributing device is provided with the main tank body and below the feeding mouth, is provided with below the discharge end of the distributing device front and rear Directional spreding, conveyer belt for the material entered from the main tank body feeding mouth to be delivered to main tank body discharging opening.Distributing device Front and rear vibration and the dustpan body of inclined downward backward during including a job.Dustpan body is used to spread out material plastochondria, makes its thickness It is uniformly distributed, while the material thickness for making to fall within conveyer belt is uniformly distributed, it is abundant beneficial to drying.Further preferred scheme It is that conveyer belt uses Chain conveyer, to solve the problems, such as that traditional conveyer belt causes guipure to wander off using roller transmission, fundamentally solves The problem of guipure of having determined is rectified a deviation.
As the preferred of drying part, the feeding mouth of the neighbouring main tank body and be provided with the distributing device above for pair The microwave applicator that material on distributing device and neighbouring conveyer belt leading section is dried, before the inner side of the conveyer belt Rear is to steam heater, hot-water heater and the cooler for being sequentially provided with distribution parallel with conveyer belt.Microwave applicator is used for First time heating is carried out with microwave mode, moisture evaporated, gasified from inside to outside from material plastochondria, is then added using steam Hot device, hot-water heater carry out second, heating and insulation respectively, make moisture evaporation, the gasification of material mitochondrial surface, and then make water Divide the volatilization from material plastochondria from inside to outside, realize and fully dry;Finally, material cools down through cooler, and cooling can make material Particle shortcakeization, convenient follow-up crushing;The material of cooling is not easy moisture absorption simultaneously, it is ensured that the aridity of final products.Steam heater Temperature determined according to the factor such as solvent-laden boiling point of institute in material characteristic, material, by controlling vapor (steam) temperature, in main tank body The speed of material thickness and conveyer belt in vacuum, conveyer belt, to realize dry requirement.
The steam heater, hot-water heater and the preferred plate type heat exchanger of cooler(Small volume, efficiency high), it is also optional With the heat exchanger tube of snakelike planar alignment.
It is described to vacuumize and solvent recovering system includes:The condensate cooler that is connected with the exhaust outlet of the main tank body, with The connected Roots's water ring vacuum pump of the exhaust outlet of the condensate cooler;The neighbouring exhaust ports in the main tank body of condensate cooler Provided with liquid blocker;The leakage fluid dram being connected with a recycling design tank is respectively equipped with the main tank body in the front and rear side of the liquid blocker.
The top vent of the vacuum feeding tank is connected by the main tank body phase of blast pipe and the vacuum belt drier, Feed pipe and blow-down pipe are connected with the vacuum feeding tank;The 4th sealing valve is respectively equipped with blast pipe, feed pipe and blow-down pipe. Filter screen is provided with the vacuum feeding tank and in place relative with the interface of the blast pipe and blow-down pipe(It is preferred that sintered meshwork, can keep away Omit bits phenomenon), for preventing that travel fatigue in vacuum feeding tank, impurity from passing through the blast pipe and blow-down pipe is discharged;Work as emptying When atmospheric valve air on pipe implements emptying blanking, external air flow is directly blown by blow-down pipe, cleans filter screen, it is not necessary to is separately set Filter screen cleaning system, has purified device structure.
The main tank body of the vacuum belt drier be provided with safety valve, visor, sterilizing gases input port, for Sprayed water in main tank body to clean the water purification water connector of main inner tank wall;And the bottom of main tank body is provided with sewage draining exit, the sewage draining exit It is provided with valve.
The liquid blocker includes:The waveform that the multi-disc parallel spaced-apart being fixed on the air flow path in the tower body is set Plate, distributing alternately on the two sides of each corrugated sheet has multiple blend stops, and in hook-shaped, the concave surface of blend stop is adjacent with entrance for the section of blend stop Airflow direction between corrugated sheet is relative, for making air-flow produce cyclone, and then extends the residence time of air-flow, makes itself and waveform The abundant contact heat-exchanging of plate, improve condensation effect;The height of blend stop is less than the gap of adjacent corrugated sheet, prevents from blocking air-flow.
In order to increase the quantity, the frequency and the density that produce cyclone, and generate big cyclone and small cyclone, the blend stop include according to The big blend stop and small blend stop of secondary alternate setting, big blend stop are located at the top of the circular arc of the neighbouring corrugated sheet, and small blend stop is located at adjacent Big a pair blend stop between.Big blend stop and small blend stop generate large and small cyclone respectively, and the large and small cyclone generated is adjacent, can improve The density of cyclone, and then further improve condensation effect.
The powder drying means of above-mentioned vacuum belt drier group, it includes, and powder to be dried is used into vacuum handling side Formula is sent into vacuum feeding tank, is then fed into granulator and material plastochondria of the diameter in 3-20mm is made, then through vacuum belt type drying After machine is dried, crush and obtained through dry powder through pulverizer;Wherein, the biography in the main tank body of neighbouring vacuum belt drier Send with the microwave applicator being provided with above leading section for material to be dried, the inner side fore-and-aft direction of the conveyer belt is successively Steam heater, hot-water heater and cooler provided with distribution parallel with conveyer belt;Using microwave applicator, with microwave mode First time heating is carried out, moisture evaporated, gasified from inside to outside from material plastochondria, then using steam heater, hot water Heater carries out second of heating and insulation respectively, makes moisture evaporation, the gasification of material mitochondrial surface;Finally, material is through cooling Device cools down, so that material particles shortcakeization, embrittlement, beneficial to crushing.If without supercooling, temperature of charge is higher and material plastochondria is overall It is softer, it is not easy to crush.
Above-mentioned powder drying means, in addition to, in the presence of Roots's water ring vacuum pump, vapours enters cold in main tank body Solidifying cooler;Air-flow passes through between the corrugated sheet that the multi-disc parallel spaced-apart in liquid blocker is set, and in the two sides of each corrugated sheet On the multiple end faces to distribute alternately be in hook-shaped blend stop in the presence of, air-flow produce cyclone;Solvent warp and waveform in air-flow Condensed after plate contact, and enter recycling design tank from the leakage fluid dram of recycling design pot bottom;In the main tank body and in it is described enter The distributing device of front and rear vibration when being provided with work below material mouth, the discharge end lower section of the distributing device are provided with conveyer belt;Distributing device includes One front and rear vibration when working and the backward dustpan body of inclined downward.
It is in negative pressure state in main tank body in the presence of Roots's water ring vacuum pump during feeding(So that water, organic solvent Boiling point is relatively low, beneficial to drying), the control valve that vacuum feeding tank is connected on the pipeline of the main tank body opens, you can makes in vacuum Batch can feeding, while the atmospheric valve on the blow-down pipe of vacuum feeding tank is closed, then the inlet valve on vacuum feeding tank is beaten Drive simultaneously feeding;When inlet amount reaches preset value, first sealing valve, inlet valve and control valve are closed, and then control second is close Seal valve and atmospheric valve to open, be in now normal pressure in vacuum feeding tank because the inner chamber of granulator is in negative pressure state, vacuum feeding tank In material quickly sucked granulator and carry out a machine(Blanking efficiency is provided, avoids material ready-made in vacuum feeding tank Bridging or wall built-up phenomenon, it can be ensured that material falls completely within granulator), after the completion of granulation, the second sealing valve is closed successively, opens the One sealing valve, material plastochondria are fallen into distributing device.
The invention has the advantages that(1)The vacuum belt drier group of the present invention, by powder to be dried through mechanism of pelletizing Grain, after vacuum belt drier is dried, crush and obtained through dry powder through pulverizer.Powder drying will not produce powder Dirt, has discharged the security incident caused by dust is possible, and drying process security is higher.(2)Using microwave applicator, with microwave Mode carries out first time heating, moisture evaporated, gasified from inside to outside from material plastochondria, then using steam heater, Hot-water heater carries out second and heats and be incubated, and the moisture of material mitochondrial surface fully evaporated, gasified, whole process makes water Divide the volatilization from material plastochondria from inside to outside, realize and fully dry;Finally, material cools down through cooler, and cooling can make material Particle shortcakeization, convenient follow-up crushing;The material of cooling is not easy moisture absorption simultaneously, instant packed and be not easy the moisture absorption in packaging process, Ensure the aridity of final products.The use of microwave heating, relative to only with steam heater, hot-water heater and cooler Combination, dry materials degree can lift 20-50%.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 shows the theory diagram of vacuum belt drier group;
Fig. 2 shows the structural representation of vacuum belt drier;
Fig. 3 shows the structural representation of vacuum feeding component;
Fig. 4 is shown in the pulverizer being sequentially connected on the discharging opening of the main tank body rear end, the 3rd sealing valve, discharging Between storehouse structural representation;
Fig. 5 shows described vacuumize and the structural representation of solvent recovering system;
Fig. 6 shows the structural representation of the adjacent corrugated sheet of a pair in the liquid blocker;
Fig. 7 shows the top view of the liquid blocker;
Fig. 8 shows the A direction views of the liquid blocker.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
Embodiment 1
Vacuum belt drier group includes:Vacuum belt drier, vacuum belt drier include cross direction profiles and closed Main tank body 1, the feeding mouth of the front end of main tank body 1 is connected through the first sealing valve 101 with the bottom discharge mouth of a granulator 2, makes The top feeding mouth of grain machine 2 is connected through the second sealing valve 102 with the bottom discharge mouth of a vacuum feeding tank 3;After the main tank body 1 It is connected with pulverizer 4, the 3rd sealing valve 103, discharging intermediate bin 105 on the discharging opening at end in turn;The top row of the main tank body 1 It is connected with and vacuumizes and solvent recovering system on gas port.
Distributing device 7 is provided with the main tank body 1 and below the feeding mouth, is provided with below the discharge end of the distributing device 7 Conveyer belt that fore-and-aft direction is distributed, for the material of the feeding mouth entrance from the main tank body 1 to be delivered to main tank body discharging opening 100.Distributing device 7 includes front and rear vibration and the dustpan body of inclined downward backward during a job.Dustpan body is used to spread material plastochondria Open, be uniformly distributed its thickness, while the material thickness for making to fall within conveyer belt is uniformly distributed, it is abundant beneficial to drying.
The feeding mouth of the neighbouring main tank body 1 and it is provided with the distributing device 7 above on distributing device 7 and adjacent The microwave applicator 8 that material on the leading section of nearly conveyer belt 100 is dried, the inner side fore-and-aft direction of the conveyer belt 100 It is sequentially provided with the steam heater 11, hot-water heater 12 and cooler 13 of distribution parallel with conveyer belt.Microwave applicator 8 is used for First time heating is carried out with microwave mode, moisture evaporated, gasified from inside to outside from material plastochondria, is then added using steam Hot device 11, hot-water heater 12 carry out the second heating and insulation respectively, make moisture evaporation, the gasification of material mitochondrial surface, and then Make the volatilization of moisture from material plastochondria from inside to outside, realize and fully dry;Finally, material cools down through cooler 13, and cooling can Make material particles shortcakeization, convenient follow-up crushing;The material of cooling is not easy moisture absorption simultaneously, it is ensured that the aridity of final products.
The phase of main tank body 1 that the top vent of the vacuum feeding tank 3 passes through blast pipe and the vacuum belt drier Even, feed pipe and blow-down pipe are connected with the vacuum feeding tank;During feeding, in the presence of Roots's water ring vacuum pump 62, main tank It is in negative pressure state in body 1(So that the boiling point of water, organic solvent is relatively low, beneficial to drying), vacuum feeding tank 3 connects the main tank body Control valve 107 on 1 pipeline 106 is opened, you can and vacuum feeding tank 3 is implemented feeding, while by the emptying of vacuum feeding tank 3 Atmospheric valve 108 on pipe is closed, and the inlet valve 109 on vacuum feeding tank 3 then is opened into simultaneously feeding;When inlet amount reaches preset value When, first sealing valve 101, inlet valve 109 and control valve 107 are closed, and then control the second sealing valve 102 and atmospheric valve 108 open, and are in now normal pressure in vacuum feeding tank 3 because the inner chamber of granulator 2 is in negative pressure state, the thing in vacuum feeding tank 3 Material is quickly sucked granulator 2 and carries out a machine(Provide blanking efficiency, avoid material in vacuum feeding tank it is ready-made bridging or Wall built-up phenomenon, it can be ensured that material falls completely within granulator), after the completion of granulation, the second sealing valve 102 is closed successively, opens first Sealing valve 101, material plastochondria are fallen into the distributing device 7 in main tank body 1.
The main tank body 1 be provided with safety valve 110, visor 111, sterilizing gases input interface 112, for main tank Spray water in vivo to clean the water purification water connector 113 of main inner tank wall;The bottom of main tank body 1 is provided with sewage draining exit 114, the sewage draining exit It is provided with valve.
It is described to vacuumize and solvent recovering system 6 includes:The condensate cooler being connected with the exhaust outlet of the main tank body 1 61st, the Roots's water ring vacuum pump 62 being connected with the exhaust outlet of the condensate cooler 61;Condensate cooler 61 it is laterally setting, adopt Liquid blocker 63 is provided with the neighbouring exhaust ports in the tower body of spacer water cooling;In the front and rear side of the liquid blocker 63 in the tower body It is respectively equipped with the leakage fluid dram being connected with a recycling design tank 64.
The liquid blocker 63 includes:The waveform that the multi-disc parallel spaced-apart being fixed on the air flow path in the tower body is set Plate 630, it is in hook-shaped blend stop 631, the concave surface of blend stop 631 and entrance that distributing alternately on the two sides of each corrugated sheet, which has multiple sections, Airflow direction between adjacent corrugated sheet 630 is relative, and the air-flow for making to enter in adjacent corrugated sheet 630 produces cyclone, and then Extend the residence time of air-flow, make itself and 630 abundant contact heat-exchanging of corrugated sheet, improve condensation effect;The height of blend stop 631 is less than The gap of adjacent corrugated sheet, prevent from blocking air-flow.
In order to increase the quantity, the frequency and the density that produce cyclone, and generate big cyclone and small cyclone, the blend stop include according to The big blend stop and small blend stop of secondary alternate setting, big blend stop are located at the top of the circular arc of the neighbouring corrugated sheet, and small blend stop is located at adjacent Big a pair blend stop between.Big blend stop and small blend stop generate large and small cyclone respectively, and the large and small cyclone generated is adjacent, can improve The density of cyclone, and then further improve condensation effect.
The steam heater, hot-water heater and the preferred plate type heat exchanger of cooler(Small volume, efficiency high), it is also optional With the heat exchanger tube of snakelike planar alignment.
Filter screen is provided with the vacuum feeding tank and in place relative with the interface of the blast pipe and blow-down pipe(It is preferred that sinter Net, bits phenomenon can be avoided), for preventing that travel fatigue in vacuum feeding tank, impurity from passing through the blast pipe and blow-down pipe is discharged; When the atmospheric valve air on blow-down pipe implements emptying blanking, external air flow is directly blown by blow-down pipe, cleans filter screen, is not required to Filter screen cleaning system is separately set, has purified device structure.
Main tank ground, to prevent potential safety hazard that electrostatic may be brought, avoid electrostatic dust, inflammable in main tank body Explosive solvent forms dangerous;Main tank body is provided with explosion relief valve.
Embodiment 2
The powder drying means of vacuum belt drier group described in above-described embodiment 1, it includes, and powder to be dried is adopted Vacuum feeding tank 3 is sent into vacuum handling mode, granulator 2 is then fed into and material plastochondria of the diameter in 3-20mm is made, then After vacuum belt drier is dried, crush and obtained through dry powder through pulverizer.
Wherein, it is provided with above the conveyer belt leading section in the main tank body 1 of neighbouring vacuum belt drier and is used to enter material The dry microwave applicator 8 of row, the inner side fore-and-aft direction of the conveyer belt 100 are sequentially provided with and 100 parallel distribution of conveyer belt Steam heater 11, hot-water heater 12 and cooler 13;Using microwave applicator 8, first time heating is carried out with microwave mode, Moisture evaporated, gasified from inside to outside from material plastochondria, then entered respectively using steam heater 11, hot-water heater 12 Second of heating of row and insulation, make moisture evaporation, the gasification of material mitochondrial surface;Finally, material cools down through cooler 13, so that Material particles shortcakeization.
Above-mentioned powder drying means, in addition to, in the presence of Roots's water ring vacuum pump 62, vapours is entered in main tank body 1 Enter condensate cooler 6;Air-flow passes through between the corrugated sheet 630 that the multi-disc parallel spaced-apart in liquid blocker 63 is set, and in each waveform The multiple end faces to distribute alternately on the two sides of plate 630 are in air-flow generation cyclone in the presence of hook-shaped blend stop 631;Air-flow In vapor, solvent condenses after being contacted with corrugated sheet 630, and enters recycling design from the leakage fluid dram of recycling design pot bottom Tank 64;The distributing device 7 of front and rear vibration, the distributing device in the main tank body 1 and when being provided with work below the feeding mouth of main tank body 1 Conveyer belt 100 is provided with below 7 discharge end;Distributing device 7 includes front and rear vibration and the dustpan body of inclined downward backward during a job, Using cylinder and linkage driving dustpan body action.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.

Claims (1)

1. a kind of method that powder drying is carried out using multi-functional, environment-friendly and energy-efficient vacuum belt drier group, the dryer group Including:Vacuum belt drier, vacuum belt drier include cross direction profiles and closed main tank body, it is characterised in that:The master The feeding mouth of tank body front end is connected through the first sealing valve with the bottom discharge mouth of a granulator, and the top feeding mouth of granulator is through Two sealing valves are connected with the bottom discharge mouth of a vacuum feeding tank;
It is connected with pulverizer, the 3rd sealing valve, discharging intermediate bin on the discharging opening of the main tank body rear end in turn;
It is connected with and vacuumizes and solvent recovering system on the exhaust outlet of the main tank body;
Described powder drying means, including:Powder to be dried is sent into vacuum feeding tank using vacuum handling mode, then sent Enter granulator and material plastochondria of the diameter in 3-20mm is made, then after vacuum belt drier is dried, through pulverizer crushing Obtain through dry powder;
Wherein, it is provided with above the conveyer belt leading section in the main tank body of neighbouring vacuum belt drier and is used to material be dried Microwave applicator, the inner side fore-and-aft direction of the conveyer belt is sequentially provided with the steam heater of distribution parallel with conveyer belt, heat Water heater and cooler;Using microwave applicator, first time heating is carried out with microwave mode, make moisture from material plastochondria by Interior and nonlocal evaporation, gasification, then carry out second of heating and insulation using steam heater, hot-water heater, make thing respectively Expect moisture evaporation, the gasification of mitochondrial surface;Finally, material cools down through cooler, so that material particles shortcakeization;
Described powder drying means also includes:In the presence of Roots's water ring vacuum pump, vapours enters condensation in main tank body Cooler;Air-flow passes through between the corrugated sheet that the multi-disc parallel spaced-apart in liquid blocker is set, and on the two sides of each corrugated sheet The multiple end faces to distribute alternately be in hook-shaped blend stop in the presence of, air-flow produce cyclone;Solvent warp and corrugated sheet in air-flow Condensed after contact, and enter recycling design tank from the leakage fluid dram of recycling design pot bottom;
The distributing device of front and rear vibration, the discharge end of the distributing device in the main tank body and when being provided with work below the feeding mouth Lower section is provided with conveyer belt;Distributing device includes front and rear vibration and the dustpan body of inclined downward backward during a job;
Wherein, during feeding, in the presence of Roots's water ring vacuum pump, interior main tank body is in negative pressure state, and vacuum feeding tank connects institute The control valve stated on the pipeline of main tank body is opened, you can make vacuum feeding tank feeding, while by the blow-down pipe of vacuum feeding tank Atmospheric valve close, then by vacuum feeding tank inlet valve open and feeding;When inlet amount reaches preset value, described first Sealing valve, inlet valve and control valve are closed, and then control the second sealing valve and atmospheric valve to open, because the inner chamber of granulator is in negative Pressure condition, is in now normal pressure in vacuum feeding tank, and the material in vacuum feeding tank is quickly sucked granulator and carries out a machine, is made After the completion of grain, the second sealing valve is closed successively, opens the first sealing valve, material plastochondria is fallen into distributing device.
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