CN207779041U - Vacuum belt drier - Google Patents

Abstract

A kind of vacuum belt drier of the utility model includes dryness storehouse, ribbon conveyer, heating plate, vacuum pump set, discharge gate, gas-guide tube.Gas-guide tube one end is fixedly connected on the exhaust outlet of dryness storehouse, and the other end of gas-guide tube is fixedly connected on vacuum pump set；Discharge gate is installed in the inlet port and outlet port of dryness storehouse.Ribbon conveyer is mounted in dryness storehouse, and heating plate is mounted below the upper layer transport band of ribbon conveyer.The heat conducting pipe of the heating device of heating plate is straight tube, convenient for being removed by descaling equipment；Heat-conducting work medium prolonged heat conduction heating inside heating plate not will produce incrustation scale grease.The heat-conducting medium for carrying thermal energy carries out heat conduction and heat radiation by heating plate to the material on upper layer transport band, thermal conversion efficiency is high and loss is small, improve heat conduction heat transfer rate, the availability of the conduction heat exchange of thermal energy is high, the drying uniformity for improving material improves dry materials efficiency and optimization dry materials effect.

Description

Vacuum belt drier

Technical field

The utility model is related to a kind of band drier, especially a kind of vacuum belt drier.

Background technology

Band drier is a kind of vacuum dryer of continuous operation, and main mode of heating is band drier at present Hot water, gas-vapor mix or other flowing heat mediums are passed through in the heating plate below transmission belt, material is in material transferring band On, transmission belt carries the material heating zone Jing Guo heating plate successively, adding in the heating plate below transmission belt by the speed of setting Thermal medium（Water, conduction oil）The material in transmission belt is transferred heat to by heating plate, material, which absorbs heat, makes its moisture steam Hair, water vapour are taken away by vacuum system, and dryness storehouse is discharged in the material after drying, and entire drying process carries out in vacuum warehouse.Add Heat-conducting medium in hot plate（Water, conduction oil）It, can shape on the plate body inside heating plate when flowing heat conduction in heating plate for a long time At incrustation scale grease, the internal structure of heating plate is complicated, and the incrustation scale grease on the plate body of heating plate does not allow easy to clean scale removal, there is water The heating plate of dirty grease can influence the conduction heat exchange of thermal energy.

Hot pipe technique is that one kind of the G.M.Grover inventions of LosAlamos National Laboratories of the U.S. in 1963 is known as " heat The heat transfer element of pipe ", it takes full advantage of the quick thermal transport property of heat-conduction principle and refrigeration working fluid, and heat-conducting work medium passes through The heat of thermal objects is transmitted to outside heat source rapidly by " gas-liquid phase transition ", and the capacity of heat transmission is more than the heat conduction energy of any known metal Power.

Invention content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of vacuum belt drier.

The technical solution adopted in the utility model is：A kind of vacuum belt drier includes dryness storehouse, and ribbon conveyer adds Hot plate, vacuum pump set, discharge gate, gas-guide tube.

The dryness storehouse is drum type brake dryness storehouse or box dryness storehouse.

There are feed inlet, discharge port, exhaust outlet on the dryness storehouse.

Described gas-guide tube one end is fixedly connected on the exhaust outlet of dryness storehouse, and the other end of gas-guide tube is fixedly connected on very On empty unit.

The vacuum pump set includes dust treatment device, condenser, vacuum pump.

One, dust treatment device plays the role of filtering the dust in moisture；The moisture generated when dry materials can be mingled with Dust impurities in material, the dust in moisture can be adhered on the heat-exchanger rig of condenser, influence the condensation work of condenser, Moisture after filtering dust can pass through the better UTILIZATION OF VESIDUAL HEAT IN of condenser.

Two, the moisture that gas and whens dry materials generate in the storehouse of dryness storehouse enters through gas-guide tube in vacuum pump set, moisture The dust processing of the dust treatment device of vacuum pump set is passed sequentially through, treated that moisture enters condenser by dust, condensation Device plays condensation material moisture caused by dry in-bin drying, after condensable gas is condensed into water in moisture, not coercibility The volume of gas just reduces very much, can reduce the power of vacuum pump in this way, condenses the thermal energy of generation and can also obtain again It uses, achievees the effect that UTILIZATION OF VESIDUAL HEAT IN, energy-saving and emission-reduction.

Three, gas-guide tube is discharged by the pump drainage moisture of vacuum pump in condensed moisture.Vacuum pump extracts in the storehouse of dryness storehouse The moisture generated when gas and dry materials.The moisture that gas and whens dry materials generate in the storehouse of dryness storehouse is through gas-guide tube transporting Into in vacuum pump set, after moisture passes sequentially through the dust processing of vacuum pump set, condenser condensation, condensed moisture is in vacuum Dryness storehouse is discharged under pump ground pump drainage.

Four, during vacuum belt drier material drying, relative pressure is -0.025Mpa in the storehouse of dryness storehouse To -0.099Mpa.

Discharge gate is installed on the feed inlet of the dryness storehouse, discharge gate is installed on the discharge port of dryness storehouse.

One, the feed inlet of discharge gate is mounted on the discharge port of dryness storehouse, and discharge bucket is mounted on the discharging of discharge gate On mouth.

Two, the discharge port of discharge gate is mounted on the feed inlet of dryness storehouse, and feed hopper is mounted on the charging of discharge gate On mouth.

The feed hopper plays the role of finishing collecting bulk material, is passed in and out by discharge gate convenient for the material of bulk Dryness storehouse；Wet stock is by the promotion of elevator, conveyer belt, into the feed hopper at the discharge gate of the feed inlet of dryness storehouse Spare, wet stock in feed hopper is by discharge gate into people's dryness storehouse.

The discharge gate is airlock and motor or wind stopping device and motor.

One, discharge gate plays the role of high airtight rotation conveying material, and discharge gate is in material in disengaging dryness storehouse During play the role of top and the bottom air pressures partition lock gas, discharge gate play the gas in the feed hopper outside reduction dryness storehouse into Enter the effect of the air inflow inside dryness storehouse.

Two, start discharge gate, the feed bin rotated in discharge gate can dynamic sealing rotary motion, do not stop continuously Material is ceaselessly conveyed disengaging dryness storehouse by ground, and discharge gate maintains high airtight dynamic sealing during conveying material, The gas reduced outside dryness storehouse enters the air inflow inside dryness storehouse, saves labor, sealing effect is good.

Three, there is the high airtight input and output material of discharge gate, feed inlet and discharging of the gas in dryness storehouse outside dryness storehouse The air inflow entered at mouthful inside dryness storehouse is few, and the capacity of vacuum pump set has also been lacked very much, and making for vacuum pump set is reduced Use power.

The ribbon conveyer be mounted on dryness storehouse in, multigroup ribbon conveyer by holder successively above and below fixation On the warehouse of dryness storehouse.

There are 1-8 group ribbon conveyers in the dryness storehouse.

The ribbon conveyer belongs to the prior art, and ribbon conveyer includes transmission belt and transmission tape transport, is passed Defeated tape transport drives transmission belt movement.

The transmission belt be sheet metal make transmission belt metal mesh make transmission belt or other The transmission belt that the high material of thermal coefficient makes；The transmission belt that the high material of thermal coefficient makes is passed convenient for thermal energy by transmission belt It leads on material.

1-8 group ribbon conveyers are combined into one up and down successively.

The transmission belt of ribbon conveyer is upper layer transport band and the bilevel carry out rotary work of lower layer's transmission belt.

One, the upper layer transport band of uppermost ribbon conveyer carries material to be dried, and upper layer transport band rotates to one When head, the material on upper layer transport band can be laid down, and the material laid down is by the distribution transporting of stock guide in adjacent belt conveying On the upper layer transport band of machine, the transmission belt that such lower layer does not carry material is continued cycling through under and is rotationally advancing.

Two, the upper layer transport band of ribbon conveyer above carry material to be dried successively by material be discharged at it is adjacent under On the upper layer transport band of layer ribbon conveyer.

Three, the upper layer transport band of nethermost ribbon conveyer carry it is dry after material unload down after, it is dry after object Dryness storehouse is discharged by the discharge gate on discharge port of the stock guide through dryness storehouse in material.

The heating plate, including top plate, bottom plate, side plate, heating device, heat conduction item, heat-conducting work medium.

The heating plate is mounted in dryness storehouse, and heating plate is fixedly mounted on by holder on the warehouse of dryness storehouse.

The heating plate is mounted below the upper layer transport band of ribbon conveyer, and upper layer transport band is attached to heating plate The upper surface of top plate.

Dryness storehouse, heating dress are extended in thermal energy import, the thermal energy outlet of the heat conducting pipe of the heating device of the heating plate The thermal energy import set, the heat conducting pipe in thermal energy exit and the warehouse junction of dryness storehouse are that fixing seal is air-locked.

The length of the heating plate is 2500-18500mm, and width is 300-1800mm, and thickness is 50-180mm.

The material that is fabricated to of the top plate, bottom plate, side plate is metallic plate.

It is to have insulating layer heat preservation, or do not have insulating layer on the outside of the bottom plate；It is to have guarantor on the outside of side plate Warm layer heat preservation, or there is no insulating layer.

The shape of the side plate is L-shape, and the plate face of side plate lower end folds into, and the upper end of side plate is straight shape.

The appearance of the bottom plate is V-shape, and the wedge angle of V-shape bottom plate is upward；When the inclination on bottom plate one side has When the length of the plate face of the gradient is more than 500mm, it is stamped with reinforcing rib on bottom plate, has the bottom plate of reinforcing rib will not be because of in heating plate The high pressure negative pressure in portion causes the protrusion or recess of bottom plate.

The lower end of the bottom plate is connected to one by four blocks of side plates and top plate；Four blocks of side plates of surrounding are successively Be connected as one, the side plate that the lower end of bottom plate and four pieces of side plate lower ends fold into is connected to one, the lower end of bottom plate and The junction of side plate lower end is a U-shaped groove.

The lower end of the bottom plate and the lower end of four blocks of side plates are connected to one, four sides of top plate and four blocks of side plates Upper end be connected to one.

The heat-conducting work medium is in the inside of heating plate.

The heat-conducting work medium is water ether or composite work medium.

The heat conduction item is fixed below top plate, and it is integrated that heat conduction item is fixedly connected with top plate.

The heat conduction item is metal strip, and the spacing of adjacent heat conduction item and heat conduction item is 30-180mm.

The heat conduction item is to play the role of giving top plate heat conduction, while also functioning to Strengthening Roof.

The top plate for playing the role of heat conduction item can improve anti-negative pressure, high pressure, have the top plate of heat conduction item that can ensure top Plate it is smooth, the protrusion or recess of top plate will not be caused because of the high pressure negative pressure inside heating plate.

The heat-conducting work medium is in the U-shaped groove of bottom plate lower end and the junction of side plate.

The heating device is mounted on the connection of the bottom plate lower end and side plate lower end inside the heating plate of band drier In the U-shaped groove at place.

The heating device is the heat conducting pipe for having fin, or the not heat conducting pipe of fin.

Thermal energy import, the thermal energy outlet of the heat conducting pipe of the heating device extend outside side panel, the thermal energy of heating device The junction of import, the heat conducting pipe in thermal energy exit and side plate is that fixing seal is air-locked.The heating device heat conduction of heating plate Dryness storehouse, the thermal energy import of heating device, the heat conducting pipe in thermal energy exit and drying are extended in thermal energy import, the thermal energy outlet of pipe The junction of the warehouse in storehouse is that fixing seal is air-locked.

One, the heat-conducting medium for carrying thermal energy is entered by the thermal energy import of heating device in heating device, and heat-conducting medium is taken The thermal energy of band is heated to the heat-conducting work medium heat conduction around heating device, and heat-conducting medium is exported by the thermal energy of heating device after heat conduction Heating device is discharged.

Two, a hot recycle pump is installed in the thermal energy outlet of the heat conducting pipe of heating device, hot recycle pump can improve heat conduction The circulation rate of medium increases the heat-conducting effect of thermal energy.

The heat-conducting medium is water conduction oil or steam.

The incrustation scale grease that the heat-conducting medium generates after being flowed for a long time in heating device can be removed easily, Because the heat conducting pipe of heating device is straight tube, convenient for being removed by descaling equipment.

The heat-conducting work medium takes full advantage of the quick thermal transport property of heat-conduction principle and refrigeration working fluid, heat-conducting work medium The heat of heating device is transmitted to rapidly on top plate and heat conduction item by " gas-liquid phase transition ", the capacity of heat transmission is more than any known The capacity of heat transmission of metal；Heat-conducting work medium prolonged heat conduction heating inside the heating plate of band drier not will produce incrustation scale oil Dirt.

The heating plate is a gravity assisted heat pipe, and the inside of heating plate vacuumizes after having added heat-conducting work medium, does not heat When heating plate inside relative pressure be -0.020Mpa to -0.098Mpa.

The top plate and heat conduction item of the heating plate are the condensation segments of heat-conducting work medium, and heating device is the evaporation of heat-conducting work medium Section.

One, the heat-conducting medium after heating enters the inside of heating device, heating device by the thermal energy import of heating device Heat source is provided to heat-conducting work medium, the heat-conducting work medium of liquid absorbs heat and is vaporizated into vaporous heat-conducting work medium, under small pressure difference, Vaporous heat-conducting work medium rises at top plate.

Two, the thermal energy conduction that vaporous heat-conducting work medium carries conducts the thermal energy on heat conduction item on top plate and heat conduction item By the conduction of heat conduction item on top plate.

Three, thermal energy by the heat-conducting mode of the heat radiation of the top plate of heating plate and heat transfer simultaneously to being waited on upper layer transport band Dry material is carried out at the same time heat conduction heating, and material, which has obtained thermal energy, to be dried；Vaporous heat-conducting work medium releases heat Can after be condensed into the heat-conducting work medium of liquid.

Four, the heat-conducting work medium of condensed liquid is fallen under gravity to V on the top plate of heating plate and heat conduction item On the bottom plate of shape, the U-shaped that the heat-conducting work medium of liquid flows to side plate and bottom plate junction along the acclive plate face of bottom plate is recessed Around heating device in slot, the heat-conducting work medium of liquid again the energy heats on heated device and be vaporizated into vaporous lead Hot working fluid.

Five, the heat conduction heat exchange that so moves in circles of heat-conducting work medium, top plate is by thermal energy conduction to being attached in the transmission belt of top plate Material on, material has obtained dry required thermal energy, achievees the purpose that dry materials.

When band-type vacuum drier carries out drying materials work, the transmission belt of ribbon conveyer is that upper layer and lower layer is rotated Work, above transmission belt carry material to be dried, conveying carries the upper surface of material to be dried transmission belt and is attached to the upper of top plate Face carries the heat-conducting work medium of thermal energy by thermal energy conduction on top plate and heat conduction item, heat radiation and heat transfer of the thermal energy by top plate Heat-conducting mode carry out heat conduction heating to the material to be dried carried in transmission belt above；The transmission belt for not carrying material exists Pass through below bottom plate.

The energy consumption index of the conductive drying of vacuum belt drier is 2800-4000kj/kg, and convective drying is 4000—7500kj/kg；The thermal energy availability of convective drying generally only 20-50%, and conductive drying in theory may be used With close to 100%, the thermal energy availability actually in vacuum belt drier can reach 60-80%.It passes under normal circumstances It is more energy saving by 30-50% than convective drying to lead drying, this is because the conductive drying of vacuum belt drier does not need Hot-blast Heating object Material is small by the thermal losses for being vented lost.

Dry under vacuum state of the material in dryness storehouse, when material constant rate of drying, reduces the boiling point of water, water in material The vaporization boiling temperature divided is reduced to 35 DEG C -60 DEG C from 100 DEG C, and material heating is minimum, and heat almost all is used for evaporating wet Point, when such as approaching or being less than critical moisture content, the power savings advantages of vacuum belt drier are bigger, improve thermal energy in this way Availability reduces the total amount consumed of thermal energy.

The utility model has the advantages that compared with existing band drier：A kind of vacuum belt drier, leads The incrustation scale grease that thermal medium generates after being flowed for a long time in the heating device of heating plate can be removed easily, heating plate The heat conducting pipe of heating device is straight tube, convenient for being removed by descaling equipment；Heat-conducting work medium prolonged heat conduction inside heating plate Heating not will produce incrustation scale grease.The heat-conducting medium for carrying thermal energy carries out heat conduction by heating plate to the material on upper layer transport band Heat dissipation, thermal conversion efficiency is high and loss is small, improves heat conduction heat transfer rate, the availability of the conduction heat exchange of thermal energy is high, carries The drying uniformity of high material improves dry materials efficiency and optimization dry materials effect.

Description of the drawings

Fig. 1 is the structural schematic diagram of the vacuum belt drier of the utility model；

Fig. 2 is the structural schematic diagram of the heating plate of the vacuum belt drier of the utility model；

Fig. 3 is the schematic cross-sectional view of the heating plate of the vacuum belt drier of the utility model.

In figure：1, dryness storehouse, 2, ribbon conveyer, 3, heating plate, 4, vacuum pump set, 5, gas-guide tube, 6, discharge gate, 7, Feed inlet, 8, discharge port, 9, upper layer transport band, 10, lower layer's transmission belt, 11, top plate, 12, bottom plate, 13, heat conduction item, 14, heating Device, 15, heat-conducting work medium, 16, side plate, 17, thermal energy import, 18, thermal energy outlet, 19, warehouse.

Specific implementation mode

The utility model is further described below in conjunction with the accompanying drawings：

A kind of vacuum belt drier as shown in Figure 1 includes dryness storehouse 1, ribbon conveyer 2, heating plate 3, vacuum pump set 4, discharge gate 6, gas-guide tube 5.

The dryness storehouse 1 is box dryness storehouse.

There are feed inlet 7, discharge port 8, exhaust outlet on the dryness storehouse 1.

Described 5 one end of gas-guide tube is fixedly connected on the exhaust outlet of dryness storehouse 1, and the other end of gas-guide tube 5 is fixedly connected On vacuum pump set 4.

The vacuum pump set 4 includes dust treatment device, condenser, vacuum pump.

Vacuum pump extracts the moisture that gas and whens dry materials generate in the storehouse of dryness storehouse 1；In the storehouse of dryness storehouse 1 gas and The moisture generated when dry materials enters through gas-guide tube 5 in vacuum pump set 4, and moisture passes sequentially through the dust processing of vacuum pump set 4, Condenser condenses, the discharge dryness storehouse 1 of vacuum pump pump drainage.

During vacuum belt drier material drying, relative pressure is -0.055Mpa in the storehouse of dryness storehouse 1.

Discharge gate 6 is installed on the feed inlet 7 and discharge port 8 of the dryness storehouse 1.

The feed inlet of discharge gate 6 is mounted on the discharge port 8 of dryness storehouse 1, and discharge bucket is mounted on the discharging of discharge gate 6 On mouth.

The discharge port of discharge gate 6 is mounted on the feed inlet 7 of dryness storehouse 1, and feed hopper is mounted on the charging of discharge gate 6 On mouth.

The discharge gate 6 is airlock and motor or wind stopping device and motor.

Discharge gate 6 plays the role of high airtight rotation conveying material, and discharge gate 6 is in material in disengaging dryness storehouse 1 During play the role of top and the bottom air pressures partition lock gas, the gas that discharge gate 6 plays outside reduction dryness storehouse 1 enters dryness storehouse The effect of air inflow inside 1.

Start the motor of discharge gate 6, the feed bin rotated in discharge gate 6 can dynamic sealing rotary motion, even Continuous that material is ceaselessly ceaselessly conveyed to disengaging dryness storehouse 1, discharge gate 6 maintains high airtight move during conveying material State seals, and the gas reduced outside dryness storehouse 1 enters the air inflow inside dryness storehouse 1, saves labor, sealing effect is good.

There is the high airtight input and output material of discharge gate 6, feed inlet 7 and discharging of the gas in dryness storehouse 1 outside dryness storehouse 1 The air inflow entered inside dryness storehouse 1 at mouth 8 is few, and the capacity of vacuum pump set 4 has also been lacked very much, and vacuum pump set 4 is reduced Use power.

The ribbon conveyer 2 is mounted in dryness storehouse 1.

3 groups of ribbon conveyers 2 are combined into one up and down successively.

3 groups of ribbon conveyer 2 by holder successively above and below be fixedly mounted on the warehouse of dryness storehouse 1.

The ribbon conveyer 2 belongs to the prior art, and ribbon conveyer 2 includes transmission belt and transmission tape transport, It transmits tape transport and drives transmission belt movement.

The transmission belt of ribbon conveyer 2 is that upper layer transport band 9 and the bilevel of lower layer's transmission belt 10 carry out rotation work Make.

Such as Fig. 1, Fig. 2, heating plate 3 shown in Fig. 3, including top plate 11, bottom plate 12, side plate 16, heating device 14, heat conduction item 13, heat-conducting work medium 15.

The heating plate 3 is fixed by the bracket on the warehouse 19 of dryness storehouse 1.

The heating plate 3 is mounted below the upper layer transport band 9 of ribbon conveyer 2, and upper layer transport band 9 is attached to heating The upper surface of top plate 11 of plate 3.

The heating device 14 is the heat conducting pipe for having fin, or the not heat conducting pipe of fin.

Dryness storehouse 1 is extended in thermal energy import 17, the thermal energy outlet 18 of the heat conducting pipe of the heating device 14 of heating plate 3, heats The junction of the warehouse 19 of heat conducting pipe and dryness storehouse 1 at the thermal energy import 17 of device 14, thermal energy outlet 18 be fixing seal not Ventilative.

The length of the heating plate 3 is 8500mm, and width is 1100mm, and thickness is 80mm.

The material that is fabricated to of the top plate 11, bottom plate 12, side plate 16 is metallic plate.

It is to have insulating layer heat preservation, or do not have insulating layer on the outside of the bottom plate 12.

It is to have insulating layer heat preservation, or do not have insulating layer on the outside of the side plate 16.

The shape of the side plate 16 is L-shape, and the plate face of 16 lower end of side plate folds into, and the upper end of side plate 16 is straight shape.

The appearance of the bottom plate 12 is V-shape, and the wedge angle of V-shape bottom plate 12 is upward.

It is stamped with reinforcing rib on the bottom plate 12, has the bottom plate 12 of reinforcing rib will not be because of the high pressure inside heating plate 3 Negative pressure causes the protrusion or recess of bottom plate 12.

The lower end of the bottom plate 12 is connected to one by four blocks of side plates 16 and top plate 11；Four blocks of side plates of surrounding 16 are sequentially connected and are integrated, and the side plate 16 that the lower end of bottom plate 12 and four pieces of 16 lower ends of side plate fold into is fixedly connected as one The junction of body, 16 lower end of lower end and side plate of bottom plate 12 is a U-shaped groove.

The lower end of the bottom plate 12 and the lower end of four blocks of side plates 16 are connected to one, four sides of top plate 11 and four The upper end of block side plate 16 is connected to one.

The heat-conducting work medium 15 is in the inside of heating plate 3.

The heat-conducting work medium 15 is composite work medium.

The heat conduction item 13 is fixed below top plate 11, and it is integrated that heat conduction item 13 is fixedly connected with top plate 11；It leads Hot item 13 is metal strip, and the spacing of adjacent heat conduction item 13 and heat conduction item 13 is 80mm.

The heat conduction item 13 is to play the role of giving top plate 11 heat conduction, while also functioning to Strengthening Roof 11；Have The top plate 11 of heat conduction item 13 can improve the effect of anti-negative pressure, high pressure, have the top plate 11 of heat conduction item 13 can to ensure top plate 11 it is smooth, the protrusion or recess of top plate 11 will not be caused because of the high pressure negative pressure inside heating plate 3.

The heat-conducting work medium 15 is in the U-shaped groove of the junction of 16 lower end of 12 lower end of bottom plate and side plate.

The heating device 14 is mounted on 16 lower end of 12 lower end of bottom plate and side plate inside the heating plate 3 of band drier Junction U-shaped groove in.

The heating device 14 is the heat conducting pipe for having fin, or the not heat conducting pipe of fin.

The thermal energy import 17 of the heat conducting pipe of the heating device 14 and thermal energy outlet 18 extend outside side panel 16, heating dress It is that fixing seal is air-locked to set 14 thermal energy import 17, the heat conducting pipe at thermal energy outlet 18 and the junction of side plate 16.Heating Dryness storehouse 1 is extended in the thermal energy import 17 of 14 heat conducting pipe of heating device of plate 3, thermal energy outlet 18, the thermal energy of heating device 14 into The junction of the warehouse 19 of heat conducting pipe and dryness storehouse 1 at mouth 17, thermal energy outlet 18 is that fixing seal is air-locked.

One, the heat-conducting medium for carrying thermal energy is entered by the thermal energy import 17 of heating device in heating device 14, and heat conduction is situated between The thermal energy that matter carries is heated to 15 heat conduction of heat-conducting work medium around heating device, and heat-conducting medium passes through heating device 14 after heat conduction 18 discharge heating device 14 of thermal energy outlet.

Two, a hot recycle pump is installed in the thermal energy outlet 18 of the heat conducting pipe of heating device 14, hot recycle pump can improve The circulation rate of heat-conducting medium increases the heat-conducting effect of thermal energy.

The heat-conducting medium is water conduction oil or steam.

The heat-conducting work medium 15 takes full advantage of the quick thermal transport property of heat-conduction principle and refrigeration working fluid, heat conduction work The heat of heating device 14 is transmitted to rapidly on top plate 11 and heat conduction item 13 by matter 15 by " gas-liquid phase transition ", and the capacity of heat transmission is super Cross the capacity of heat transmission of any known metal；Heating plate 3 inside prolonged heat conduction heating of the heat-conducting work medium 15 in band drier Incrustation scale grease is not will produce.

The heating plate 3 is a gravity assisted heat pipe, and the top plate 11 and heat conduction item 13 of heating plate 3 are the cold of heat-conducting work medium 15 Solidifying section, heating device 14 is the evaporator section of heat-conducting work medium 15.

The workflow of the drying materials of vacuum belt drier is as follows.

One, start ribbon conveyer 2, ribbon conveyer 2 starts rotary work.

Two, start discharge gate 6, discharge gate 6 starts rotary work, and the wet stock in feed hopper connects through discharge gate 6 Enter in dryness storehouse 1 with continuing ceaselessly high airtight conveying, material is advanced forward on the upper layer transport band 9 of ribbon conveyer 2 It.

Three, the heat-conducting medium after heating enters the inside of heating device 14 by the thermal energy import 17 of heating device 14；Add Thermal 14 provides thermal energy to heat-conducting work medium 15, and the thermal energy conduction that heat-conducting work medium 15 carries is on top plate 11 and heat conduction item 13, heat It can be by the heat radiation of the top plate 11 of heating plate 3 and the heat-conducting mode of heat transfer simultaneously to be dried on upper layer transport band 9 Material is carried out at the same time heat conduction heating, and material, which has obtained thermal energy, to be dried；The transmission belt of material is not carried in belt type dry Pass through below the bottom plate 122 of the heating plate 3 of dry machine.

Four, start vacuum pump set 4, vacuum pump set 4 starts to generate when the air and dry materials in pump drainage dryness storehouse 1 wet Gas, relative pressure in 1 storehouse of dryness storehouse preferably -0.065Mpa；It is generated when air and dry materials in 1 storehouse of dryness storehouse Moisture by gas-guide tube 5 by the vacuum pump of vacuum pump set 4 come pump drainage, powder of the moisture through dust processor that whens dry materials generates The moisture condensation of dirt dust removal by filtration, condenser, filters condensed moisture and dryness storehouse 1 in vacuum pump is discharged under pump drainage.

Five, the thermal energy that moisture releases in the condensation process of condenser, can be with UTILIZATION OF VESIDUAL HEAT IN to the wet object in feed hopper Material carries out preheating use.

Six, continuously dryness storehouse is ceaselessly discharged in the discharge gate 6 on the discharge port 8 that the material after drying passes through dryness storehouse 1 1。

Above example is merely used to help understand the production method and its core concept of the utility model, and specific implementation is not It is confined to above-mentioned specific embodiment, those skilled in the art is from above-mentioned design, without performing creative labour, institute The variation made, all falls within the scope of protection of the utility model.

Claims (6)

1. a kind of vacuum belt drier, including dryness storehouse（1）, ribbon conveyer（2）, heating plate（3）, vacuum pump set（4）, unload Expect valve（6）, gas-guide tube（5）；It is characterized in that：Dryness storehouse（1）On have feed inlet（7）, discharge port（8）, exhaust outlet；

The gas-guide tube（5）One end is fixedly connected on dryness storehouse（1）Exhaust outlet on, gas-guide tube（5）The other end fix connect It is connected on vacuum pump set（4）On；Dryness storehouse（1）Storehouse in gas and whens dry materials the moisture that generates through gas-guide tube（5）Into true Empty unit（4）Interior, moisture passes sequentially through vacuum pump set（4）Dust processing, after condenser condensation, moisture in vacuum pump pump drainage Under discharge dryness storehouse（1）；

The dryness storehouse（1）Feed inlet（7）And discharge port（8）On discharge gate is installed（6）；

The ribbon conveyer（2）Mounted on dryness storehouse（1）Interior, 1-8 group ribbon conveyers 2 are combined into one up and down successively； Ribbon conveyer（2）Transmission belt be upper layer transport band（9）With lower layer's transmission belt（10）Bilevel carry out rotary work；

The heating plate（3）It is fixed by the bracket and is mounted on dryness storehouse（1）Warehouse on；Heating plate（3）It is defeated mounted on belt Send machine（2）Upper layer transport band（9）Below, upper layer transport band（9）It is attached to heating plate（3）Top plate（11）The upper surface of；

The heating plate（3）, including top plate（11）, bottom plate（12）, side plate（16）, heating device, heat conduction item（13）, heat conduction work Matter（15）；

The bottom plate（12）Outside on be have insulating layer heat preservation, or do not have insulating layer；Side plate（16）Outside on be There is insulating layer heat preservation, or there is no insulating layer；

The side plate（16）Shape it is L-shape, side plate（16）The plate face of lower end is to fold into, side plate（16）Upper end be straight shape 's；

The bottom plate（12）Appearance be V-shape, V-shape bottom plate（12）Wedge angle be upward；Bottom plate（12）Upper punching press There is reinforcing rib；

The bottom plate（12）Lower end pass through four blocks of side plates（16）And top plate（11）It is connected to one；Four pieces of sides of surrounding Plate（16）It is sequentially connected and is integrated, bottom plate（12）Lower end and four blocks of side plates（16）The side plate that lower end folds into（16）It is fixed It is connected as one, bottom plate（12）Lower end and side plate（16）The junction of lower end is a U-shaped groove；

The bottom plate（12）Lower end and four blocks of side plates（16）Lower end be connected to one, top plate（11）Four sides and Four blocks of side plates（16）Upper end be connected to one；

The heat conduction item（13）It is fixed on top plate（11）Below, heat conduction item（13）And top plate（11）It is one to be fixedly connected 's；Heat conduction item（13）It is metal strip, adjacent heat conduction item（13）With heat conduction item（13）Spacing be 30-180mm；

The heat-conducting work medium（15）In heating plate（3）Inside；

The heating device（14）Mounted on the heating plate of band drier（3）Internal bottom plate（12）Lower end and side plate（16） In the U-shaped groove of the junction of lower end；

The heating device（14）The thermal energy import of heat conducting pipe（17）, thermal energy outlet（18）Extend side panel（16）Outside；Heating Device（14）Thermal energy import（17）, thermal energy outlet（18）The heat conducting pipe and side plate at place（16）Junction be that fixing seal is impermeable Gas；

The heating plate（3）Heating device（14）The thermal energy import of heat conducting pipe（17）, thermal energy outlet（18）Extend drying Storehouse（1）, heating device（14）Thermal energy import（17）, thermal energy outlet（18）The heat conducting pipe and dryness storehouse at place（1）Warehouse（19） Junction be that fixing seal is air-locked；

Carry the thermal energy import that the heat-conducting medium of thermal energy passes through heating device（17）Into heating device（14）Interior, heat-conducting medium is taken The thermal energy of band is to the heat-conducting work medium around heating device（15）Heat conduction is heated, and heat-conducting medium passes through heating device after heat conduction（14）'s Thermal energy exports（18）Heating device is discharged（14）；

The heating plate（3）It is a gravity assisted heat pipe, heating plate（3）Top plate（11）With heat conduction item（13）It is heat-conducting work medium （15）Condensation segment, heating device（14）It is heat-conducting work medium（15）Evaporator section；Heat-conducting medium after heating passes through heating device （14）Thermal energy import（17）Into heating device（14）Inside；Heating device（14）To heat-conducting work medium（15）Thermal energy is provided, Heat-conducting work medium（15）The thermal energy conduction of carrying is in top plate（11）With heat conduction item（13）On, thermal energy passes through heating plate（3）Top plate （11）Heat radiation and heat transfer heat-conducting mode simultaneously give upper layer transport band（9）On material to be dried be carried out at the same time heat conduction Heating, material, which has obtained thermal energy, to be dried.

2. a kind of vacuum belt drier according to claim 1, it is characterised in that：Vacuum pump set（4）At dust Manage device, condenser, vacuum pump.

3. a kind of vacuum belt drier according to claim 1, it is characterised in that：Discharge gate（6）Be airlock and Motor or wind stopping device and motor.

4. a kind of vacuum belt drier according to claim 1, it is characterised in that：Heating plate（3）Length be 2500-18500mm, width are 300-1800mm, and thickness is 50-180mm.

5. a kind of vacuum belt drier according to claim 1, it is characterised in that：Heat-conducting work medium（15）It is water, or It is ether or composite work medium.

6. a kind of vacuum belt drier according to claim 1, it is characterised in that：Heating device（14）There is fin Heat conducting pipe, or the not heat conducting pipe of fin.