CN207922810U - Three dry vacuum containers of spiral heating - Google Patents

Abstract

A kind of the utility model three dry vacuum containers of spiral heating include three dryness storehouses, feeding equipment, discharge device, spiral heating device.Three dryness storehouses include outer drying cylinder, middle drying cylinder, interior drying cylinder, helical blade.Spiral heating device includes heat pipe, heat conducting pipe；Spiral heating device is mounted in three dryness storehouses, by dynamic sealing device come dynamic sealing between elbow and heat conducting pipe.The heat conduction and heat radiation that the thermal energy that heat-conducting medium carries is conducted by spiral heating device to material, heat-conducting work medium carry out the heat conduction heat exchange of liquid-gas phase transition in the inside of heat pipe；The availability of the conduction heat exchange of thermal energy is high.Material continuously can ceaselessly pass in and out three dryness storehouses by feeding equipment and discharge device, and material can carry out successional vacuum drying；Exhaust outlet moisture is discharged outside the storehouse of three dryness storehouses, and material when spiral heating device is to drying is stirred propulsion, improves the drying uniformity of material.

Description

Three dry vacuum containers of spiral heating

Technical field

The utility model is related to a kind of three dryness storehouses, especially a kind of three dry vacuum containers of spiral heating.

Background technology

Currently on the market, the objects such as grain, chemical products, coal, stone, the grains of sand, mineral products, herbage, crops, local and special products Expect drying equipment, it is hot wind that the equipment of three dryness storehouses currently on the market, which is mostly outer heat exchange, and the heat exchange efficiency of thermal energy is low, hot wind The use of the thermal energy of convective drying is disposable, and baking needed thermal energy is increased by the drying moisture for much influencing drying materials It is uneven.

Roller drying machine is thermally dried processing to material under vacuum, to reach necessary requirement water content standard Material；It is heated under vacuum state, because not enough air, liquid carry out convection current and conduct heat, heat transfer, hot spoke under vacuum state The heat transfer effect penetrated can be more preferable；The heat conduction and heat radiation of vacuum dryer currently on the market is mostly with the heating of external interlayer, comb Formula radiator carries out heat dissipation heating, but their radiator volume is big, heat dissipation area is small, and thermal energy service efficiency is low, uses High failure rate in journey, it is not easy to repair.

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 heat-conducting work medium, the heat conduction heat exchange of thermal energy It is to be exchanged heat come heat conduction by the liquid-gas phase transition of heat-conducting work medium, the heat of thermal objects is transmitted to rapidly by heat by heat-conducting work medium Outside source, the capacity of heat transmission is more than the capacity of heat transmission of any known metal.

Invention content

Problem to be solved in the utility model is to overcome the shortcomings of the prior art, provides a kind of spiral heating three Dry vacuum container.

In order to achieve the above object, the utility model is achieved through the following technical solutions：Three vacuum of spiral heating are dry Dry storehouse includes three dryness storehouses, feeding equipment, discharge device, spiral heating device.

The face shaping of three dryness storehouses is cylindric.

The diameter of three dryness storehouses is 1500-5500mm；The length of three dryness storehouses is 3000-16000mm.

Three dryness storehouses include outer drying cylinder, middle drying cylinder, interior drying cylinder, helical blade.

There are feed inlet, the outer drying cylinder of the other end of three dryness storehouses on the interior drying cylinder of one end of three dryness storehouses On have discharge port.

Helical blade, arrangement of the helical blade on the cylinder of interior drying cylinder are fixed on the cylinder of the interior drying cylinder It is spirally to arrange.Helical blade plays the role of promoting material, and the material at the feed inlet of interior drying cylinder is in helical blade Under impetus, during material is entered by the inner cylinder outlet of interior drying cylinder in drying cylinder.

Helical blade, arrangement of the helical blade on the cylinder of middle drying cylinder are fixed on the cylinder of the middle drying cylinder It is spirally to arrange.Helical blade plays the role of promoting material, and the material of the middle cylinder entrance of middle drying cylinder is in helical blade Impetus under, material therefrom drying cylinder middle cylinder outlet enter outer drying cylinder in.

Helical blade, arrangement of the helical blade on the cylinder of outer drying cylinder are fixed on the cylinder of the outer drying cylinder It is spirally to arrange.Helical blade plays the role of promoting material, and the material of the outer barrel entrance of outer drying cylinder is in helical blade Impetus under, outer drying cylinder is discharged from the discharge port of outer drying cylinder in material.

The interior drying cylinder is in the inside of middle drying cylinder, and middle drying cylinder is in the outside of outer drying cylinder；Three different-diameters Concentric outer drying cylinder, middle drying cylinder, interior drying cylinder determines group according to certain mathematical relationship and structure type, each other phase build-in Made of conjunction.

The outer drying cylinder of three dryness storehouses, the inside of middle drying cylinder, interior drying cylinder is intercommunication.

Because the internal diameter of the outer drying cylinder of three dryness storehouses, middle drying cylinder, interior drying cylinder is different；Outer drying cylinder, Middle drying cylinder, diameter of the interior drying cylinder from feed inlet to discharge port are gradually to amplify, the gradually amplification of diameter also allow for material by High to Low flowing.

The outer barrel cylinder of the outer barrel entrance of the outer drying cylinder is by the feed inlet of outer barrel baffle and interior drying cylinder The sealing of inner cylinder cylinder is fixed together.

The middle cylinder cylinder of the middle cylinder entrance of the middle drying cylinder by middle cylinder baffle fixing seal together, middle cylinder baffle Surrounding and the middle cylinder cylinder of middle cylinder entrance of middle drying cylinder be fixed together.

The interposition of the middle cylinder baffle is equipped with the ventilation mouth of 38-180mm.

The feeding equipment includes airlock, elbow, bump joint, sealing device, exhaust outlet, dynamic sealing device.

The dynamic sealing device is mounted on the outside of elbow.

The exhaust outlet is fixed on elbow, what exhaust outlet and elbow were connected to one；Inside the pipe of exhaust outlet It is ventilation with elbow the inside.

The moisture that gasification generates when dry materials in three dryness storehouses is pumped out by exhaust outlet by vacuum pump set It goes.

The moisture of discharge port end in the outer drying cylinder can be entered by the ventilation mouth in middle cylinder baffle centre position In interior drying cylinder, during the moisture in outer drying cylinder can be entered by outer barrel import by the middle cylinder import of cylinder in middle drying cylinder simultaneously In drying cylinder.

Moisture in the middle drying cylinder is entered by middle cylinder import in interior drying cylinder.

Moisture in the interior drying cylinder is gone out by exhaust outlet by vacuum pump set pump drainage.

The bump joint of the feeding equipment is fixedly connected on the feed inlet of the interior drying cylinder of three dryness storehouses, flange The feed inlet of connector and three dryness storehouses is connected to one；The elbow of elbow exports between bump joint by sealing device Come dynamic sealing connection, when three dryness storehouses rotate under external force, bump joint with three dryness storehouses interior drying cylinder Synchronous rotary together.Bump joint with three dryness storehouses interior drying cylinder synchronous rotary when, exhaust outlet be it is fixed, it is curved By the dynamic sealing of sealing device between the elbow outlet of head and bump joint, gas leakage is not generated；The lower end of airlock is fixed One feed hopper can be installed in the elbow import of connecting bend, on the upper end of airlock；Feed hopper is played the role of It is to concentrate transporting into airlock scattered material, airlock is fixed by holder and supported.

The elbow is bellows or rubber tube.

The elbow exit can be up and down small range movement, be connected to the elbow import of elbow on airlock It is fixed.

Three dryness storehouses can be up and down in rotary course wave, the elbow that bellows or rubber tube make Elbow elbow outlet can be up and down small range movement；Three dryness storehouses of elbow egress synchronization of elbow are ensured The rotation up and down of feed inlet avoids the sealing leak between the elbow and bump joint in elbow exit.

The discharge device includes airlock, elbow, bump joint, sealing device, dynamic sealing device.

The dynamic sealing device is mounted on the outside of elbow.

The bump joint of the discharge device is fixedly connected on the discharge port of the outer drying cylinder of three dryness storehouses, flange The discharge port of the outer drying cylinder of connector and three dryness storehouses is connected to one；Between the elbow import of elbow and bump joint It is connected come dynamic sealing by sealing device；When three dryness storehouses rotate under external force, bump joint is with three dryness storehouses Outer drying cylinder synchronous rotary together.Bump joint with three dryness storehouses outer drying cylinder synchronous rotary when, the elbow of elbow By the dynamic sealing of sealing device between import and bump joint, gas leakage is not generated；The upper end of airlock is fixedly connected with elbow Elbow outlet on, a discharging hopper can be installed on the lower end of airlock；Discharging hopper is played the role of being that will dry Material concentration afterwards is discharged into suitable position, and airlock is fixed by holder and supported.

The elbow is bellows or rubber tube.

The elbow import of the elbow can be up and down small range movement, be connected to the elbow of elbow on airlock Import is fixed.

Three dryness storehouses can be up and down in rotary course wave, the elbow that bellows or rubber tube make Elbow entrance can be up and down small range movement；Ensure that the elbow import of elbow synchronizes the charging of three dryness storehouses The rotation up and down of mouth, avoids the sealing leak between the elbow and bump joint of elbow entrance.

What the airlock played the role of is continuity conveying discharge and partition lock gas, reduces the gas reduced outside storehouse Air inflow into three dryness storehouses.

After three dryness storehouses are mounted with feeding equipment and discharge device, material can pass through feeding equipment and discharge Device continuously ceaselessly passes in and out three dryness storehouses, and material can carry out successional vacuum drying, the efficiency of improving material drying With optimization dry materials effect.

The sealing device is dynamic sealing device or device for sealing magnetic fluid.

The spiral heating device includes heat pipe, heat conducting pipe.

The heat conducting pipe is the pipe that metal makes, and heat conducting pipe is by the processing modelling of bending machine, and heat conducting pipe is in the shape of a spiral Arrangement.

The heat conducting pipe of helical arrangement can reduce the stress of the heat conducting pipe caused by thermal expansion difference, to suitably increase The anti-performance expanded with heat and contract with cold of strong heat conducting pipe.

The diameter of the heat conducting pipe is 15-48mm, and the length of heat conducting pipe is 2000-28000mm.

The heat conducting pipe has thermal energy import and thermal energy outlet.

The heat pipe includes metal tube, heat-conducting work medium, fin.

The fin is fixed on the tube wall exterior of metal tube, and fin and metal tube are integrated；Fin is for increasing heat The heat dissipation area of pipe improves heat conduction, the radiating rate of the thermal energy of heat pipe.

The thickness of the fin is 0.2-3mm；The height of fin is 10-30mm, and the spacing of fin and fin is 18—60mm。

Thickness, the height of fin are designed according to the Thermal Conductivity by Using of fin；The thickness of fin is 0.2-3mm, fin 10-30mm of height are that have relationship, too low fin height to influence heat according to the heat transfer of the high temperature heat conducting medium in heat conducting pipe The conduction surface of energy is limited, and the conduction that excessively high fin height influences thermal energy is not got on.

The spacing of the fin and fin is that 18-60mm are according to D>The principle of 4d（D is the spacing of fin and fin, D is the diameter of material）, so the optimum distance between fin and fin is less than the length of four times of the diameter of material, in this way may be used Between ensureing that the material in the rotary course of roller drying storehouse would not be stuck in fin.

The heat-conducting work medium is in the pipe for the metal tube that both ends seal.

What the heat conduction heat exchange of the heat-conducting work medium in the metal tube of the heat pipe utilized is heat pipe for thermal conductivity technology, and thermal energy is logical The liquid-gas phase transition for crossing heat-conducting work medium carrys out heat conduction heat exchange.

The heat-conducting work medium is water ether or other working medium.

The diameter of the metal tube is 15-48mm, and the height of metal tube is 80-800mm.

The lower end of the heat pipe is concave shape；The concave shape lower end of heat pipe is fitted in the pipe of heat conducting pipe above, heat pipe Lower end is fixed by welding on the pipe face of heat conducting pipe, and the lower end of heat pipe and heat conducting pipe are fixed as one.

The thermal energy that heat-conducting medium in heat conducting pipe pipe carries carries out heat conduction to the concave shape lower end of heat pipe by heat transfer and adds Heat.

The lower end of the heat pipe is the evaporator section of heat-conducting work medium, and the tube wall of metal tube is the condensation segment of heat-conducting work medium.

Adjacent spacing between the heat pipe and heat pipe is 50-120mm.

Fixation is respectively welded by metal strip in the top of the heat pipe, and branch is fixedly connected with by metal strip between heat pipe and heat pipe Support.

By metal strip support fixed heat pipe increase heat pipe metal tube lower end and heat conducting pipe connection solidness, drop The lower end of low metal tube is detached from the hidden danger of heat conducting pipe under the effect of external force, improves the service life of heat pipe.

The heat pipe is an individual integral solder in the outside of heat conducting pipe, and being fixed on for heat pipe arrangement is spiral helicine On heat conducting pipe；The inside of heat pipe and the inside of heat conducting pipe are not communicated with；Leakage is generated when damage occurs in a certain heat pipe, not shadow Ring the use of entire three dryness storehouses.

The spiral heating device is mounted in three dryness storehouses, and the spiral heating device quantity in three dryness storehouses is 3-9 groups.

The spiral heating device spirally arranged can give material heat conduction to heat, and can also play in dry materials The effect push ahead material when work, stirred；Material must also obtain in the propulsion whipping process of spiral heating device The drying uniform moisture degree of uniform stirring, material is also improved.

The heat conducting pipe of the spiral heating device is fixed on the cylinder of the outer drying cylinder of three dryness storehouses；Spiral heating The heat conducting pipe of device is fixedly welded on the cylinder of the middle drying cylinder of three dryness storehouses；The heat conducting pipe of spiral heating device fixes weldering It is connected on the cylinder of the interior drying cylinder of three dryness storehouses.

The thermal energy import of the heat conducting pipe of the spiral heating device of the outer drying cylinder is from the discharge port of outer drying cylinder Between extend out；Prolong from the centre of the feed inlet of interior drying cylinder the thermal energy outlet of the heat conducting pipe of the spiral heating device of interior drying cylinder Stretching is gone.

The thermal energy import of the heat conducting pipe of the spiral heating device of the outer drying cylinder is from dynamic on the elbow of discharge device The centre of sealing device extends out, and the thermal energy import of the heat conducting pipe of the spiral heating device of outer drying cylinder is connected by thermal energy conduit It is connected on the heating device of peripheral hardware, the leading through outer drying cylinder by thermal energy conduit of the heat-conducting medium after the heating devices heat of peripheral hardware The thermal energy import of heat pipe enters the inside of the spiral heating device of outer drying cylinder.The heat conducting pipe of the spiral heating device of outer drying cylinder When being rotated together with three dryness storehouse synchronizations, by dynamic sealing device come dynamic sealing between elbow and heat conducting pipe, leakage is not generated Gas.

The thermal energy of the heat conducting pipe of the spiral heating device of the interior drying cylinder is exported from dynamic on the elbow of feeding equipment The centre of sealing device extends out；The thermal energy outlet of the heat conducting pipe of the spiral heating device of interior drying cylinder is connected by thermal energy conduit It is connected on the heating device of peripheral hardware.Extend the junction of the heat conducting pipe and elbow of the spiral heating device of the interior drying cylinder of elbow By dynamic sealing device come dynamic sealing；While the heat conducting pipe rotation of the spiral heating device of interior drying cylinder, interior drying cylinder The junction of heat conducting pipe and elbow is sealed air-tight.

Heat-conducting medium circulating heat conduction heat exchange inside the spiral heating device in three dryness storehouses；Heat-conducting medium is logical After crossing peripheral hardware heating devices heat, carries the heat-conducting medium of thermal energy and pass through the heat conducting pipe of the spiral heating device in outer drying cylinder Thermal energy import enters spiral heating device through heat conducting pipe.

Further, the heat-conducting medium in the spiral heating device in outer drying cylinder is by cylinder warm in outer barrel thermal energy outlet warp In spiral heating device during energy import enters in drying cylinder；Outer barrel thermal energy exports and middle cylinder thermal energy import corresponds fixed company It is connected together.

Further, the heat-conducting medium in the spiral heating device in middle drying cylinder is exported by middle cylinder thermal energy through inner cylinder heat Energy import enters in the spiral heating device in interior drying cylinder；Middle cylinder thermal energy outlet and inner cylinder thermal energy import correspond fixed company It is connected together.

Further, the heat-conducting medium in the spiral heating device in interior drying cylinder exports row by the thermal energy of heat conducting pipe Go out the spiral heating device in interior drying cylinder.

Further, the heat-conducting medium of the spiral heating device in being discharged in drying cylinder by the heating device of peripheral hardware again Secondary heating, the heat-conducting medium for carrying thermal energy enter outer drying again by the thermal energy import of the heat conducting pipe of outer drying cylinder through heat conducting pipe Spiral heating device in cylinder, the cycle of heat-conducting medium in cycles are heated, heat conduction.

The heat-conducting medium is conduction oil water or other liquid.

When spiral heating device and the synchronization of three dryness storehouses rotate together, spiral heating device with three dryness storehouses rotation Turn, the lower end of the heat pipe of spiral heating device constantly changes upper and lower position.Due to the operation principle of gravity assisted heat pipe, heat pipe Lower end is in the lower position of heat pipe, and after the heat-conducting work medium in heat pipe flows at the lower end of heat pipe, the heat conduction in heat conducting pipe pipe is situated between Lower end of tube wall of the thermal energy through heat conducting pipe that matter carries by heat transfer to heat pipe carries out heat conduction heating.

Next step, the thermal energy that the heat-conducting medium in heat conducting pipe carries is by the lower end of heat pipe to liquid in heat pipe Heat-conducting work medium provides thermal energy.

Next step, after the heat conduction heating that the liquid heat-conducting work medium at the lower end of heat pipe passes through the thermal energy on heat conducting pipe Gasification, the gasiform heat-conducting work medium after gasification move in the inner cavity of heat pipe, the gold that gasiform heat-conducting work medium passes through heat pipe After the roller and the outside heat conduction and heat radiation of fin that belong to pipe, gasiform heat-conducting work medium is condensed into liquid heat-conducting work medium, after condensation Liquid heat-conducting work medium flow at the lower end of heat pipe after heat gasify again.

Next step, the heat conduction heat exchange of thermal energy is exchanged heat by the liquid-gas phase transition of heat-conducting work medium come heat conduction, and heat-conducting work medium is in warm The inside of pipe carries out the heat conduction heat exchange of liquid-gas phase transition.

The thermal energy that heat-conducting work medium carries in the heat pipe is added by heat transfer, heat radiation to the material heat conduction around heat pipe Heat.

The thermal energy that the heat-conducting medium carries is led by the heat transfer of heat conducting pipe, heat radiation to the material around heat conducting pipe Heat heating.

Under the driving device induced effect of peripheral hardware, three dryness storehouses can be risen three dryness storehouses with rotary motion Come.

The thermal energy that the heat-conducting medium carries carries out heat conduction and heat radiation, thermal conversion efficiency by spiral heating device to material High and loss is small, improves heat conduction heat transfer rate.

The spiral heating device is three-dimensional heat exchange, the cylinder of the heat exchange area of spiral heating device than three dryness storehouses Area increases 18-60 times, and the heat exchange area of spiral heating device accelerates the heat conduction heat exchange of thermal energy.

The vacuum conductive drying energy consumption index of three dry vacuum containers of spiral heating is 2800-3500 kilojoule per kilogram of water, And convective drying is 5500-8500 kilojoule per kilogram of water；The thermal energy availability of convective drying is and true generally 20-50% Empty conductive drying in theory can be close to 100%, this is because the vacuum conductive drying of three dry vacuum containers of spiral heating is not Hot-blast Heating material is needed, it is small by the thermal losses for being vented lost.Three dry vacuum containers of spiral heating are in constant speed drying section, because true Sky or decompression reduce the boiling point of water, and material heating is minimum, and heat almost all is used for evaporating hygroscopic water, such as approaches or is less than When critical moisture content, the power savings advantages of the vacuum conductive drying of three dry vacuum containers of spiral heating are bigger.

It is without the use of extra hot-air when three dry vacuum container dried materials of spiral heating, therefore is vented taken away heat waste It loses and can be neglected, whole availability is 80% -90%, the spiral heating device of three dry vacuum containers of spiral heating The availability for conducting heat exchange is high.

Material passes sequentially through interior drying cylinder, middle drying cylinder, outer drying cylinder.

The workflow for heating, drying of the material of three dry vacuum containers of spiral heating is as follows：

One, start airlock, material passes sequentially through feed hopper, airlock, the elbow of feeding equipment, interior drying cylinder into Material mouth enters in the storehouse of interior drying cylinder；Further, material under the impetus of helical blade by interior drying cylinder During cylinder outlet is entered by middle cylinder import in the storehouse of drying cylinder；Further, material passes through under the impetus of helical blade The middle cylinder outlet of middle drying cylinder is entered by outer barrel import in the storehouse of outer drying cylinder.

Two, after the heating devices heat that heat-conducting medium passes through peripheral hardware, the thermal energy that heat-conducting medium carries is filled by spiral heating It sets and carries out heat conduction heating to the material in three dryness storehouses；Material in three dryness storehouses has obtained the heating of thermal energy, material into It goes after vacuum drying drying, reaches the material of necessary requirement water content standard.

Three, the moisture that gasification generates when dry materials in three dryness storehouses is gone out by exhaust outlet by vacuum pump set pump drainage.

Four, material passes sequentially through going out for outer drying cylinder under the impetus of helical blade after the drying in three dryness storehouses Three dryness storehouses are discharged in material mouth, elbow, the airlock of discharge device, discharging hopper.

The utility model has the advantages that compared with existing three dryness storehouses：A kind of three vacuum of spiral heating are dry The heat conduction and heat radiation that the thermal energy that the heat-conducting medium in dry storehouse carries is conducted by spiral heating device to material, spiral heating device Heat exchange area increases 18-60 times than the area of the cylinder of three dryness storehouses, accelerates the heat conduction heat exchange of thermal energy.Heat conduction is hollow The inside of plate and the inside of adjacent heat conduction cored slab are not communicated with, and are let out when damage generation occurs in a certain piece of heat conduction cored slab Leakage, does not influence the use of entire three dryness storehouses.It is without the use of extra heat when three dry vacuum container dried materials of spiral heating Air, therefore be vented taken away heat loss and can be neglected, whole availability is 80%-90%, the heat that heat-conducting medium carries The heat conduction and heat radiation that can be conducted to material by spiral heating device, heat-conducting work medium carry out liquid-gas phase transition in the inside of heat pipe Heat conduction heat exchange；The availability of the conduction heat exchange of thermal energy is high.Exhaust outlet moisture is discharged outside the storehouse of three dryness storehouses, spiral Material when heating device is to drying is stirred propulsion, improves the drying uniformity of material, and material can be filled by feeding It sets and continuously ceaselessly passes in and out three dryness storehouses with discharge device, material can carry out successional vacuum drying, and improving material is dry Dry efficiency and optimization dry materials effect.

Description of the drawings：

Fig. 1, for the structural schematic diagram of three dry vacuum containers of the utility model spiral heating；

Fig. 2, for three dry vacuum containers of the utility model spiral heating outer drying cylinder structural schematic diagram；

Fig. 3, for three dry vacuum containers of the utility model spiral heating middle drying cylinder structural schematic diagram；

Fig. 4, for three dry vacuum containers of the utility model spiral heating interior drying cylinder structural schematic diagram；

Fig. 5, for three dry vacuum containers of the utility model spiral heating spiral heating device heat conducting pipe appearance knot Structure schematic diagram；

Fig. 6, for three dry vacuum containers of the utility model spiral heating spiral heating device sectional view；

Fig. 7, for the utility model spiral heating three dry vacuum containers interior drying cylinder feed inlet and feeding equipment Attachment structure schematic diagram；

Fig. 8, for the utility model spiral heating three dry vacuum containers outer drying cylinder discharge port and discharge device Attachment structure schematic diagram.

In attached drawing figure：1, three dryness storehouses, 2, discharge device, 3, feeding equipment, 4, spiral heating device, 5, discharge port, 6, feed inlet, 9, heat-conducting medium, 10, thermal energy import, 11, thermal energy outlet, 12, middle drying cylinder, 13, outer drying cylinder, 14, interior dry Dry cylinder, 15, exhaust outlet, 16, middle cylinder baffle, 17, the outlet of outer barrel thermal energy, 18, the outlet of middle cylinder thermal energy, 19, middle cylinder thermal energy import, 20, inner cylinder exports, and 21, middle cylinder import, 22, the outlet of middle cylinder, 23, outer barrel import, 24, inner cylinder thermal energy import, 25, helical blade, 26, outer barrel baffle, 27, airlock, 28, elbow, 29, dynamic sealing device, 30, elbow import, 31, elbow outlet, 32, flange connects Head, 33, sealing device, 34, heat conducting pipe, 35, heat-conducting work medium, 36, lower end, 37, flow direction of material mark, 38, top, 39, fin, 40, metal tube, 41, heat pipe.

Specific implementation mode：

The utility model is described further with reference to the accompanying drawings and examples.

Embodiment：

Three dry vacuum containers of spiral heating as shown in Figure 1 include three dryness storehouses 1, feeding equipment 3, discharge device 2, Spiral heating device 4.

The face shaping of three dryness storehouses 1 is cylindric.

The diameter of three dryness storehouses 1 is 1800mm；The length of three dryness storehouses 1 is 6000mm.

Three dryness storehouses 1 include outer drying cylinder 13, middle drying cylinder 12, interior drying cylinder 14, helical blade 25.

There is feed inlet 6 on the interior drying cylinder 14 of one end of three dryness storehouses 1, the other end of three dryness storehouses 1 There is discharge port 5 on outer drying cylinder 13.

Such as Fig. 1, helical blade 25 is fixed on the cylinder of interior drying cylinder 14 shown in Fig. 4, helical blade 25 is dry inside Arrangement on the cylinder of cylinder 14 is spirally to arrange.Helical blade 25 plays the role of promoting material, the charging of interior drying cylinder 14 For material at mouth 6 under the impetus of helical blade 25, the inner cylinder that material passes through interior drying cylinder 14 exports drying in 20 entrance In cylinder 12.

Such as Fig. 1, it is fixed with helical blade 25 on the cylinder of middle drying cylinder 12 shown in Fig. 3, helical blade 25 is in middle drying Arrangement on the cylinder of cylinder 12 is spirally to arrange.Helical blade 25 plays the role of promoting material, the middle cylinder of middle drying cylinder 12 Material at import 21 under the impetus of helical blade 25, material therefrom drying cylinder 12 middle cylinder outlet 22 enter outer dryings In cylinder 13.

Such as Fig. 1, it is fixed with helical blade 25 on the cylinder of outer drying cylinder 13 shown in Fig. 2, helical blade 25 is dried outside Arrangement on the cylinder of cylinder 13 is spirally to arrange.Helical blade 25 plays the role of promoting material, the outer barrel of outer drying cylinder 13 For material at import 23 under the impetus of helical blade 25, outer drying cylinder is discharged from the discharge port 5 of outer drying cylinder 13 in material 13。

The interior drying cylinder 14 is in the inside of middle drying cylinder 12, and middle drying cylinder 12 is in the outside of outer drying cylinder 13；Three The concentric outer drying cylinder 13 of different-diameter, middle drying cylinder 12, interior drying cylinder 14 according to certain mathematical relationship and structure type, Phase build-in is composed surely each other.

The outer drying cylinder 13 of three dryness storehouses 1, the inside of middle drying cylinder 12, interior drying cylinder 14 is intercommunication.

Because the internal diameter of the outer drying cylinder 13 of three dryness storehouses 1, middle drying cylinder 12, interior drying cylinder 14 is different；Outside Drying cylinder 13, middle drying cylinder 12, diameter of the interior drying cylinder 14 from feed inlet to discharge port are gradually to amplify, the gradually amplification of diameter Also allow for the flowing of material from high to low.

Such as Fig. 1, Fig. 2, outer barrel cylinder at the outer barrel import 23 of outer drying cylinder 13 shown in Fig. 3 is by outer barrel baffle 26 and interior Inner cylinder cylinder sealing at the feed inlet 6 of drying cylinder 14 is fixed together.

Middle cylinder cylinder at the middle cylinder import 21 of the middle drying cylinder 12 by middle 16 fixing seal of cylinder baffle together, in Middle cylinder cylinder at the surrounding of cylinder baffle 16 and the middle cylinder import 21 of middle drying cylinder 12 is fixed together.

The interposition of the middle cylinder baffle 16 is equipped with the ventilation mouth of 80mm.

Such as Fig. 1, feeding equipment 3 shown in Fig. 7 includes airlock 27, elbow 28, bump joint 32, sealing device 33, row Gas port 15, dynamic sealing device 29.

The dynamic sealing device 29 is mounted on the outside of elbow 28.

The exhaust outlet 15 is fixed on elbow 28, what exhaust outlet 15 and elbow 28 were connected to one；Exhaust outlet Inside 15 pipe and 28 the inside of elbow is ventilation.

The moisture that gasification generates when dry materials in three dryness storehouses 1 is by exhaust outlet 15 by vacuum pump set pump drainage It goes out.

The moisture at 5 end of discharge port in the outer drying cylinder 13 can pass through the ventilation mouth in middle 16 centre position of cylinder baffle Into in interior drying cylinder 14, the moisture in outer drying cylinder 13 simultaneously can be by outer barrel import 23 by cylinder in middle drying cylinder 12 During cylinder import 21 enters in drying cylinder 12.

Moisture in the middle drying cylinder 12 is entered by middle cylinder import 21 in interior drying cylinder 14.

Moisture in the interior drying cylinder 14 is gone out by exhaust outlet 15 by vacuum pump set pump drainage.

The bump joint 32 of the feeding equipment 3 is fixedly connected on the feed inlet 6 of the interior drying cylinder 14 of three dryness storehouses 1 On, the feed inlet 6 of bump joint 32 and three dryness storehouses 1 is connected to one；The elbow outlet 31 of elbow 28 and flange connect Between first 32 by sealing device 33 come dynamic sealing connect, when three dryness storehouses 1 rotate under external force, bump joint 32 with The interior drying cylinders 14 of three dryness storehouses 1 synchronous rotary together.Bump joint 32 is same with the interior drying cylinder 14 of three dryness storehouses 1 When step rotation, exhaust outlet 15 is fixed, by sealing device 33 between the elbow outlet 31 of elbow 28 and bump joint 32 Dynamic sealing, do not generate gas leakage；The lower end of airlock 27 is fixedly connected in the elbow import 30 of elbow 28, airlock 27 One feed hopper can be installed on upper end；Feed hopper is played the role of being to concentrate transporting into airlock 27 scattered material Interior, airlock 27 is fixed by holder and is supported.

The elbow 28 is bellows.

Small range movement that can be up and down at the described elbow outlet 31 is connected to the curved of elbow 28 on airlock 27 Head import 30 is fixed.

Three dryness storehouses 1 can be up and down in rotary course wave, bellows make elbow 28 it is curved Head outlet 31 can be up and down small range movement；Ensured the elbow outlet 31 of elbow 28 synchronize three dryness storehouses 1 into The rotation up and down of material mouth 6 avoids the elbow 28 at elbow outlet 31 and the sealing leak between bump joint 32.

Such as Fig. 1, discharge device 2 shown in Fig. 8 includes airlock 27, elbow 28, bump joint 32, and sealing device 33 moves Sealing device 29.

The dynamic sealing device 29 is mounted on the outside of elbow 28.

The bump joint 32 of the discharge device 2 is fixedly connected on the discharge port 5 of the outer drying cylinder 13 of three dryness storehouses 1 On, the discharge port 5 of the outer drying cylinder 13 of bump joint 32 and three dryness storehouses 1 is connected to one；The elbow of elbow 28 into It is connected come dynamic sealing by sealing device 33 between mouth 30 and bump joint 32；When three dryness storehouses 1 rotate under external force, Bump joint 32 with three dryness storehouses 1 the synchronous rotary together of outer drying cylinder 13.Bump joint 32 is with three dryness storehouses 1 It is close by the dynamic of sealing device 33 between the elbow import 30 and bump joint 32 of elbow 28 when outer 13 synchronous rotary of drying cylinder Envelope, does not generate gas leakage；The upper end of airlock 27 is fixedly connected in the elbow outlet 31 of elbow 28, can on the lower end of airlock 27 To install a discharging hopper；Discharging hopper played the role of be after drying material concentration be discharged into suitable position, close Wind device 27 is fixed by holder and is supported.

The elbow 28 is bellows.

The elbow import 30 of the elbow 28 can be up and down small range movement, be connected to elbow on airlock 27 28 elbow import 30 is fixed.

Three dryness storehouses 1 can be up and down in rotary course wave, bellows make elbow 28 it is curved Small range that can be up and down at head import 30 moves；Three dryness storehouses 1 of synchronization of elbow import 30 of elbow 28 are ensured The rotation up and down of feed inlet 6, avoids the sealing leak between the elbow 28 at elbow import 30 and bump joint 32.

What the airlock 27 played the role of is continuity conveying discharge and partition lock gas, reduces the gas reduced outside storehouse Body enters the air inflow in three dryness storehouses 1.

After three dryness storehouses 1 are mounted with feeding equipment 3 and discharge device 2, material passes through feeding equipment 3 and discharge Device 2 is continuous ceaselessly to pass in and out three dryness storehouses 1, and material can carry out successional vacuum drying, the effect of improving material drying Rate and optimization dry materials effect.

The sealing device 33 is device for sealing magnetic fluid.

Such as Fig. 1, Fig. 5, spiral heating device 4 shown in fig. 6 includes heat pipe 41, heat conducting pipe 34.

The heat conducting pipe 34 is the pipe that metal makes, and heat conducting pipe 34 is in by the processing modelling of bending machine, heat conducting pipe 34 Helical arrangement.

The heat conducting pipe 34 of helical arrangement can reduce the stress of the heat conducting pipe caused by thermal expansion difference, to suitably Enhance the anti-performance expanded with heat and contract with cold of heat conducting pipe.

The diameter of the heat conducting pipe 34 is 48mm, and the length of heat conducting pipe 34 is 12000mm.

The heat conducting pipe 34 has thermal energy import 10 and thermal energy outlet 11.

The heat pipe 41 includes metal tube 40, heat-conducting work medium 35, fin 39.

The fin 39 is fixed on the tube wall exterior of metal tube 40, and fin 39 and metal tube 40 are integrated；Fin 39 Heat dissipation area for increasing heat pipe 41 improves heat conduction, the radiating rate of the thermal energy of heat pipe 41.

The thickness of the fin 39 is 0.5mm；The height of fin 39 is 20mm, and fin 39 and the spacing of fin 39 are 50mm。

The heat-conducting work medium 35 is in the pipe for the metal tube 40 that both ends seal.

What the heat conduction heat exchange of the heat-conducting work medium 35 in the heat pipe 41 utilized is heat pipe for thermal conductivity technology, and thermal energy is by leading The liquid-gas phase transition of hot working fluid 35 carrys out heat conduction heat exchange.

The heat-conducting work medium 35 is water.

The diameter of the metal tube 40 is 48mm, and the height of metal tube 40 is 300mm.

The lower end 36 of the heat pipe 41 is concave shape；The lower end 36 of concave shape is fitted in the pipe of heat conducting pipe 34 above, The lower end 36 of heat pipe 41 is fixed by welding on the pipe face of heat conducting pipe 34, and the lower end 36 of heat pipe 41 and heat conducting pipe 34 are fixed as one Body.

The thermal energy that heat-conducting medium in 34 pipe of heat conducting pipe carries is by heat transfer to the lower end 36 of the concave shape of metal tube 40 Carry out heat conduction heating.

The lower end 36 of the heat pipe 41 is the evaporator section of heat-conducting work medium 35, and the tube wall of metal tube 40 is heat-conducting work medium 35 Condensation segment.

Adjacent spacing between the heat pipe 41 and heat pipe 41 is 80mm.

Fixation is respectively welded by metal strip in the top of the heat pipe 41, is fixed by metal strip between heat pipe 41 and heat pipe 41 Connection support.

By metal strip support fixed heat pipe 41 increase heat pipe 41 metal tube 40 lower end 36 and heat conducting pipe 34 company Solidness is connect, the lower end 36 for reducing metal tube 40 is detached from the hidden danger of heat conducting pipe 34 under the effect of external force, improves heat pipe 41 Service life.

The heat pipe 41 is an individual integral solder in the outside of heat conducting pipe 34, and what heat pipe 41 arranged is fixed on spiral shell On the heat conducting pipe 34 for revolving shape；The inside of heat pipe 41 and the inside of heat conducting pipe 34 are not communicated with；When a certain heat pipe 41 damages It is bad to generate leakage, the use of entire three dryness storehouses 1 is not influenced.

The spiral heating device 4 is mounted in three dryness storehouses 1, and the spiral heating device 4 in three dryness storehouses 1 counts Amount is 3 groups.

The spiral heating device 4 can give material heat conduction to heat, and can also play object when dry materials work Expect the effect pushed ahead, stirred；Material must also obtain uniform stirring in the propulsion whipping process of spiral heating device 4, The drying uniform moisture degree of material is also improved.

The heat conducting pipe 34 of the spiral heating device 4 is fixed on the cylinder of the outer drying cylinder 13 of three dryness storehouses 1；Spiral shell On the cylinder for the middle drying cylinder 12 that the heat conducting pipe 34 of rotation heating device 4 is fixedly welded on three dryness storehouses 1；Spiral heating device 4 The interior drying cylinder 14 that is fixedly welded on three dryness storehouses 1 of heat conducting pipe 34 cylinder on.

Such as Fig. 1, Fig. 7, the thermal energy import 10 of the heat conducting pipe 34 of the spiral heating device 4 of outer drying cylinder 13 shown in Fig. 8 from The centre of the discharge port 5 of outer drying cylinder 13 extends out；The thermal energy of the heat conducting pipe 34 of the spiral heating device 4 of interior drying cylinder 14 goes out Mouth 11 is extended out from the centre of the feed inlet 6 of interior drying cylinder 14.

Such as Fig. 1, the thermal energy import 10 of the heat conducting pipe 34 of the spiral heating device 4 of outer drying cylinder 13 shown in Fig. 8 is from discharge The centre of dynamic sealing device 29 on the elbow 28 of device 2 extends out, the heat conducting pipe of the spiral heating device 4 of outer drying cylinder 13 34 thermal energy import 10 is connected to by thermal energy conduit on the heating device of peripheral hardware, and the heat conduction after the heating devices heat of peripheral hardware is situated between Matter enters the spiral heating device 4 of outer drying cylinder 13 by the thermal energy import 10 of heat conducting pipe 34 of the thermal energy conduit through outer drying cylinder 13 Inside.When the heat conducting pipe 34 of the spiral heating device 4 of outer drying cylinder 13 rotates together with three synchronizations of dryness storehouse 1, elbow Between 28 and heat conducting pipe 34 gas leakage is not generated come dynamic sealing by dynamic sealing device 29.

As the thermal energy of Fig. 1, the heat conducting pipe 34 of the spiral heating device 4 of interior drying cylinder 14 shown in Fig. 7 export 11 from charging The centre of dynamic sealing device 29 on the elbow 28 of device 3 extends out；The heat conducting pipe of the spiral heating device 4 of interior drying cylinder 14 34 thermal energy outlet 11 is connected to by thermal energy conduit on the heating device of peripheral hardware；By dynamic sealing between heat conducting pipe 34 and elbow 28 Device 29 carrys out dynamic sealing；While the heat conducting pipe 34 of the spiral heating device 4 of interior drying cylinder 14 rotates, interior drying cylinder 14 The junction of heat conducting pipe 34 and elbow 28 is sealed air-tight.

Spiral heating device 4 inside circulating heat conduction heat exchange of the heat-conducting medium in three dryness storehouses 1；Heat-conducting medium After peripheral hardware heating devices heat, heat-conducting medium the leading by the spiral heating device 4 in outer drying cylinder 13 of thermal energy is carried The thermal energy import 10 of heat pipe 34 enters spiral heating device 4 through heat conducting pipe 34.

Further, the heat-conducting medium in the spiral heating device 4 in outer drying cylinder 13 is by 17 warp of outer barrel thermal energy outlet In spiral heating device 4 during middle cylinder thermal energy import 19 enters in drying cylinder 12；Outer barrel thermal energy outlet 17 and middle cylinder thermal energy import 19 correspond and are stationarily connected to together.

Further, the heat-conducting medium in the spiral heating device 4 in middle drying cylinder 12 is by 18 warp of middle cylinder thermal energy outlet Inner cylinder thermal energy import 24 enters in the spiral heating device 4 in interior drying cylinder 14；Middle cylinder thermal energy outlet 18 and inner cylinder thermal energy import 24 correspond and are stationarily connected to together.

Further, the thermal energy that the heat-conducting medium in the spiral heating device 4 in interior drying cylinder 14 passes through heat conducting pipe 34 Spiral heating device 4 in 11 discharge of outlet in drying cylinder 14.

Further, the heat-conducting medium of the spiral heating device 4 in being discharged in drying cylinder 14 is filled by the heating of peripheral hardware It sets and heats again, carry the thermal energy import 10 of the heat-conducting medium of thermal energy again by the heat conducting pipe 34 of outer drying cylinder 13 through heat conducting pipe 34 enter the spiral heating device 4 in outer drying cylinder 13, and the cycle of heat-conducting medium in cycles is heated, heat conduction.

The heat-conducting medium is conduction oil.

Such as Fig. 1, spiral heating device 4 shown in fig. 6 is synchronous with three dryness storehouses 1 when rotating together, spiral heating device 4 With the rotation of three dryness storehouses 1, the lower end 36 of the heat pipe 41 of spiral heating device 4 constantly changes upper and lower position.Due to The operation principle of gravity assisted heat pipe 41, in the lower position of heat pipe 41, liquid in heat pipe 41 is led for the lower end 36 of heat pipe 41 After hot working fluid 35 flows at the lower end 36 of heat pipe 41, the thermal energy that the heat-conducting medium 9 in 34 pipe of heat conducting pipe carries passes through heat conducting pipe 34 Tube wall to heat pipe 41 lower end 36 carry out heat conduction heating.

Next step, the thermal energy that the heat-conducting medium 9 in heat conducting pipe 34 carries is by the lower end 36 of heat pipe 41 in heat pipe 41 Liquid heat-conducting work medium 35 provide thermal energy.

Next step, liquid the leading by the thermal energy on heat conducting pipe 34 of heat-conducting work medium 35 at the lower end 36 of heat pipe 41 Gasify after heat heating, the gasiform heat-conducting work medium 35 after gasification moves in the inner cavity of heat pipe 41, gasiform heat-conducting work medium After 35 by the 39 outside heat conduction and heat radiation of roller and fin of the metal tube 40 of heat pipe 41, gasiform heat-conducting work medium 35 is condensed into liquid The heat-conducting work medium 35 of body shape, heat gas again after condensed liquid heat-conducting work medium 35 flows at the lower end 36 of heat pipe 41 Change.

Next step, the heat conduction heat exchange of thermal energy is exchanged heat by the liquid-gas phase transition of heat-conducting work medium 35 come heat conduction, heat-conducting work medium 35 The heat conduction heat exchange of liquid-gas phase transition is carried out in the inside of heat pipe 41.

The thermal energy that the 41 inner heat-conducting work medium 35 of heat pipe carries is by heat transfer, heat radiation to the material around heat pipe 41 Heat conduction is heated.

The thermal energy that the heat-conducting medium carries is by the heat transfer of heat conducting pipe 34, heat radiation to the object around heat conducting pipe 34 Expect heat conduction heating.

Under the driving device induced effect of peripheral hardware, three dryness storehouses 1 can be risen three dryness storehouses 1 with rotary motion Come.

The thermal energy that the heat-conducting medium carries carries out heat conduction and heat radiation, hot-cast socket effect by spiral heating device 4 to material Rate is high and loss is small, improves heat conduction heat transfer rate.

The spiral heating device 4 is three-dimensional heat exchange, and the heat exchange area of spiral heating device 4 is than three dryness storehouses 1 Cylinder area increases 18-60 times, and the heat exchange area of spiral heating device 4 accelerates the heat conduction heat exchange of thermal energy.

Such as Fig. 1, Fig. 2, Fig. 3, shown in the flow direction of material mark 37 in Fig. 4：Material passes sequentially through interior drying cylinder 14, middle drying Cylinder 12, outer drying cylinder 13.

The workflow for heating, drying of the material of three dry vacuum containers of spiral heating is as follows：

One, airlock 27 is started, material passes sequentially through feed hopper, and airlock 27, the elbow 28 of feeding equipment 3 are interior dry The feed inlet 6 of dry cylinder 14 enters in the storehouse of interior drying cylinder 14；Further, material leads under the impetus of helical blade 25 It crosses in storehouse of the inner cylinder outlet 20 of interior drying cylinder 14 by drying cylinder 12 in middle cylinder import 21 entrance；Further, material is in spiral shell Enter the storehouse of outer drying cylinder 13 under the impetus of vane piece 25 by outer barrel import 23 by the middle cylinder of middle drying cylinder 12 outlet 22 It is interior.

Two, after the heating devices heat that heat-conducting medium passes through peripheral hardware, the thermal energy that heat-conducting medium carries is filled by spiral heating It sets 4 and carries out heat conduction heating to the material in three dryness storehouses 1；Material in three dryness storehouses 1 has obtained the heating of thermal energy, material After carrying out vacuum drying drying, reach the material of necessary requirement water content standard.

Three, the moisture that gasification generates when dry materials in three dryness storehouses 1 is pumped out by exhaust outlet 15 by vacuum pump set It goes.

Four, material passes sequentially through outer drying cylinder under the impetus of helical blade 25 after the drying in three dryness storehouses 1 Three dryness storehouses 1 are discharged in 13 discharge port 5, elbow 28, the airlock 27 of discharge device 2, discharging hopper.

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 (5)

1. a kind of three dry vacuum containers of spiral heating, including three dryness storehouses（1）, feeding equipment（3）, discharge device（2）, spiral shell Revolve heating device（4）；It is characterized in that：Spiral heating device（4）Mounted on three dryness storehouses（1）It is interior, three dryness storehouses（1）Peace Feeding equipment is filled（3）And discharge device（2）Afterwards, material passes through feeding equipment（3）And discharge device（2）Continuously ceaselessly pass in and out Three dryness storehouses（1）, material can carry out successional vacuum drying；

Three dryness storehouses（1）Including outer drying cylinder（13）, middle drying cylinder（12）, interior drying cylinder（14）, helical blade （25）；Outer drying cylinder（13）Outer barrel import（23）The outer barrel cylinder at place is by outer barrel baffle（26）With interior drying cylinder（14）Charging Mouthful（6）The inner cylinder cylinder sealing at place is fixed together；Middle cylinder baffle（16）Surrounding and middle drying cylinder（12）Middle cylinder import （21）The middle cylinder cylinder at place is fixed together；

The middle cylinder baffle（16）Interposition be equipped with the ventilation mouth of 38-180mm；

The feeding equipment（3）Including airlock（27）, elbow（28）, bump joint（32）, sealing device（33）, exhaust outlet （15）, dynamic sealing device（29）；Exhaust outlet（15）It is fixed on elbow（28）On；

The feeding equipment（3）Bump joint（32）It is fixedly connected on three dryness storehouses（1）Interior drying cylinder（14）Into Material mouth（6）On, bump joint（32）With three dryness storehouses（1）Interior drying cylinder（14）When synchronous rotary, exhaust outlet（15）It is It is fixed, elbow（28）Elbow outlet（31）And bump joint（32）Between by sealing device（33）Dynamic sealing, Airlock（27）It is fixed and is supported by holder；Elbow exports（31）Place can be up and down small range movement, be connected to airlock （27）Upper elbow（28）Elbow import（30）It is fixed；

The discharge device（2）Including airlock（27）, elbow（28）, bump joint（32）, sealing device（33）, dynamic sealing Device（29）；Discharge device（2）Bump joint（32）It is fixedly connected on three dryness storehouses（1）Outer drying cylinder（13）Discharging Mouthful（5）On, bump joint（32）With three dryness storehouses（1）Outer drying cylinder（13）When synchronous rotary, elbow（28）Elbow Import（30）And bump joint（32）Between by sealing device（33）Dynamic sealing；Elbow（28）Elbow import（30）It can be with Small range movement up and down, is connected to airlock（27）Upper elbow（28）Elbow import（30）It is fixed；

The spiral heating device（4）Including heat pipe（41）, heat conducting pipe（34）；Heat conducting pipe（34）It arranges in the shape of a spiral；Heat Pipe（41）Including metal tube（40）, heat-conducting work medium（35）, fin（39）；Fin（39）It is fixed on metal tube（40）Tube wall outside Face, fin（39）And metal tube（40）It is integrated；Heat-conducting work medium（35）In the metal tube of both ends sealing（40）Pipe in；Heat pipe （41）Lower end（36）It is concave shape, heat pipe（41）Lower end（36）And heat conducting pipe（34）It is fixed as one, heat pipe（41）With Heat pipe（41）Between support is fixedly connected with by metal strip；

The spiral heating device（4）Mounted on three dryness storehouses（1）It is interior；Spiral heating device（4）Material heat conduction can be given Heating, can also play the role of pushing ahead material when dry materials work, stir；

The outer drying cylinder（13）Spiral heating device（4）Heat conducting pipe（34）Thermal energy import（10）From discharge device （2）Elbow（28）On dynamic sealing device（29）Centre extend out, elbow（28）And heat conducting pipe（34）Between by dynamic close Seal apparatus（29）Carry out dynamic sealing；

The interior drying cylinder（14）Spiral heating device（4）Heat conducting pipe（34）Thermal energy outlet（11）From feeding equipment （3）Elbow（28）On dynamic sealing device（29）Centre extend out；Heat conducting pipe（34）And elbow（28）Between by dynamic close Seal apparatus（29）Carry out dynamic sealing；

The outer barrel thermal energy outlet（17）With middle cylinder thermal energy import（19）It corresponds and is fixed together, middle cylinder thermal energy Outlet（18）With inner cylinder thermal energy import（24）It corresponds and is fixed together；Heat-conducting medium is in three dryness storehouses（1）It is interior Spiral heating device（4）Internal circulating heat conduction heat exchange；

The heat pipe（41）Lower end（36）It is heat-conducting work medium（35）Evaporator section, metal tube（40）Tube wall be heat-conducting work medium （35）Condensation segment；Heat conducting pipe（34）Interior heat-conducting medium（9）The thermal energy of carrying passes through heat pipe（41）Lower end（36）To heat pipe （41）Interior liquid heat-conducting work medium（35）Provide thermal energy；Thermal energy is to pass through heat-conducting work medium（35）Liquid-gas phase transition carry out heat conduction Heat exchange；Heat pipe（41）In heat-conducting work medium（35）The thermal energy of carrying is by heat transfer, heat radiation to heat pipe（41）The material of surrounding Heat conduction is heated.

2. three dry vacuum containers of a kind of spiral heating according to claim 1, it is characterised in that：Three dryness storehouses（1） Diameter be 1500-5500mm；Three dryness storehouses（1）Length be 3000-16000mm.

3. three dry vacuum containers of a kind of spiral heating according to claim 1, it is characterised in that：Elbow（28）It is ripple Pipe or rubber tube.

4. three dry vacuum containers of a kind of spiral heating according to claim 1, it is characterised in that：Sealing device（33）It is Dynamic sealing device or device for sealing magnetic fluid.

5. three dry vacuum containers of a kind of spiral heating according to claim 1, it is characterised in that：Heat pipe（41）And heat pipe （41）Between adjacent spacing be 50-120mm.