CN208398570U

CN208398570U - A kind of improvement hot-blast circulation dry furnace

Info

Publication number: CN208398570U
Application number: CN201721309007.7U
Authority: CN
Inventors: 臧世伟; 李晴; 曾卫春
Original assignee: Shenzhen New Wei Chuang Industrial Co Ltd
Current assignee: Shenzhen New Wei Chuang Industrial Co Ltd
Priority date: 2017-10-09
Filing date: 2017-10-09
Publication date: 2019-01-18
Anticipated expiration: 2027-10-09

Abstract

The utility model discloses improve hot-blast circulation dry furnace, including dry furnace body, up-draught device and lower blowing device, up-draught device and lower blowing device are separately mounted to the upper and lower part of dry furnace body, air-heater is provided with by side mounting bracket in dry furnace body side, air-heater is connected to up-draught device and lower blowing device respectively by blast pipe；Dry furnace body includes multiple electromagnetism rollers, multiple electromagnetism rollers form at least two rows of electromagnetism roller sequences in drying oven body, pole piece base band enters from the band mouth position that enters of dry furnace body, and top-bottom cross leaves after passing through each electromagnetism roller in electromagnetism roller sequence from the band outlet of dry furnace body.Used electromagnetism roller, optimized existing pole piece base band drying system structure so that pole piece base band is rapidly completed drying process, system can the production cycle it is long.

Description

A kind of improvement hot-blast circulation dry furnace

Technical field

The present invention relates to lithium battery drying equipment technical field, in particular to a kind of improvement hot-blast circulation dry furnace.

Background technique

Currently, both at home and abroad lithium electricity industry have good development prospect, lithium ion battery with its distinctive performance advantage It is widely used in portable electronics such as laptop computer, video camera, mobile communication.The high-capacity lithium-ion electricity developed at present Pond starts to try out in electric car, it is contemplated that will become one of the major impetus power supply of 21 century electric car, and will be in people It is applied in terms of making satellite, aerospace and energy storage.With the pressure of the environmental protection aspect in the in short supply and world of the energy.Lithium electricity is existing It is being widely used in electric vehicle industry, the especially appearance of LiFePO 4 material battery, is more pushing the hair of lithium battery industry Exhibition and application.In order to guarantee that lithium battery has high quality, need to production locating for each process in Production Process of Lithium Battery Environment is rigid in checking up.In the production process of lithium battery, need using drying oven to battery case, pole piece, pole volume and electricity Core is dried.

The coating of pole piece is the key link in lithium ion cell positive production, and good positive electrode is to the property such as battery capacity Can have a direct impact.So-called coating just refers to paste polymer, molten polymer or polymer solution to be coated on film to make The method for obtaining composite membrane, for lithium ion battery, coated substrate (film) is metal foil, generally copper foil or aluminium foil. The general coating process link that pole piece is completed using coating machine, entire coating process are exactly to be put into coating machine from substrate (to be known as putting Volume) several series-operations of (referred to as wind) are come out from coating machine to the substrate after coating；Its whole flow process are as follows: unreel → connect Piece → pulling-on piece → tension force → automatic deviation correction → coating → drying → tension force → automatic deviation correction → winding.Existing coating Machine is generally integrated with drying box, and the pole piece after coating is dried, but coating machine is main or carries out to pole piece The realization of coating process, the pole piece after corresponding coating is dried insufficient, processing overlong time, so that it is raw to affect pole piece Produce the overall effect of processing.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of improvement hot-blast circulation dry furnaces, optimize existing pole piece base band Drying system structure so that pole piece base band is rapidly completed drying process, system can the production cycle it is long.

In order to solve the above-mentioned technical problem, specifically, technical scheme is as follows:

A kind of improvement hot-blast circulation dry furnace, including dry furnace body, up-draught device and lower blowing device, the up-draught Device and the lower blowing device are separately mounted to the upper and lower part of dry furnace body, pass through side in the dry furnace body side Mounting bracket is provided with air-heater, the air-heater by blast pipe respectively with the up-draught device and the lower blowing Device connection；The dry furnace body includes multiple electromagnetism rollers, and multiple electromagnetism rollers form at least two in the drying oven body Electromagnetism roller sequence is arranged, pole piece base band enters from the band mouth position that enters of the dry furnace body, and top-bottom cross passes through in electromagnetism roller sequence Each electromagnetism roller after left from the band outlet of the dry furnace body；The middle position of the electromagnetism roller sequence is additionally provided with One end of the dry transition roller in centre, the intermediate dry transition roller is equipped with roll body driving motor, and the roll body driving motor is logical It crosses synchronous belt and roll body and the centre described in the rotation band wheel drive of the intermediate dry transition roller and roll body one end is set Dry transition roller rotates synchronously.

Further, it is described enter band mouth be disposed with the first dry transition roller and the second dry transition roller, it is described go out band Mouth position is disposed with the dry transition roller of third, the 4th dry transition roller and the 5th dry transition roller, pole piece base band and successively leads to Cross the described first dry transition roller, the second dry transition roller, the electromagnetism roller sequence, the dry transition roller of the third, described the Four dry transition rollers and the 5th dry transition roller；Corresponding described first dry transition roller two sides are equipped with into band limit group Part, corresponding described 5th dry transition roller two sides are equipped with out band limit assembly；Described second dry transition roller side is provided with First dry oscillating roller, described first dry oscillating roller one end are connect with an oscillating roller driving assembly；The intermediate dry transition Roller side is provided with the second dry oscillating roller, and described second dry oscillating roller one end is provided with the first adjusting turntable；The third Dry transition roller side is provided with the dry oscillating roller of third, and the dry oscillating roller one end of the third is provided with the second adjusting turntable.

Further, the described first dry transition roller, the second dry transition roller, the dry transition roller of the third, described the One end of four dry transition rollers and the 5th dry transition roller is provided with the rotation belt wheel, and the roll body driving motor passes through The synchronous belt is connect with each rotation belt wheel；A plurality of tensioning wheels and several transition pulley are provided on the synchronous belt, The tensioning wheel and the transition pulley are mounted on the side of the dry furnace body.

Further, the up-draught device includes the first air inlet and the second air inlet, first air inlet and the The connection of one wind chamber, second air inlet are connected to the second wind chamber, and the air-heater passes through the first blast pipe and described first Air inlet connection, is connected to by the second blast pipe with second air inlet；The first wind chamber and the second wind chamber pass through The separation of one tilt clapboard；The first wind chamber is connected to by multiple enterprising air holes with the dry furnace body, and the second wind chamber is logical Several upper outlet air gaps are crossed to be connected to the dry furnace body.

Further, the lower blowing device includes third air inlet and third wind chamber, and the air-heater passes through one the Three blast pipes are connected to the third wind chamber, and the third wind chamber is connected to by several lower outlet air gaps with the dry furnace body.

Further, several upper air-exhausting ducts are provided on the up-draught device, if being provided on the lower blowing device Dry lower air-exhausting duct, the upper air-exhausting duct and the lower air-exhausting duct are connected to the dry furnace body respectively.

Further, hot wind filter is additionally provided in the side mounting bracket, the air-heater connects the hot wind It is connected to respectively with second blast pipe and the third blast pipe after filter.

Further, circulating fan, the circulating fan and the dry furnace body are additionally provided in the side mounting bracket Enter and be provided with the first backwind tube and the second backwind tube connect on the upside of band mouth and band outlet, the circulating fan and described first into Air hose connection；Second backwind tube is connected to external air intake vent.

Further, the dry furnace body is mounted on a furnace body support, and the lower blowing device is arranged in the furnace body In bracket, the lower outlet air gap of the lower blowing device is connected to the dry furnace body.

Further, the upper outlet air gap is corresponded in the drying oven body be provided with wind deflector one by one.

Further, the electromagnetism roller includes that roll body, power lug and support band mechanism, the power lug are mounted on institute One end of roll body is stated, the roll body is mounted on one group of installation seat plate by one group of bearing, and support band mechanism includes support belt roller And support rod, at least one support belt roller are mounted on the roll body side by the support rod, the support rod with it is described Pass through one group of bearing connection between roll body；One end that the roll body is connect with the power lug is also equipped with rotation belt wheel, roller Body driving motor is connect by synchronous belt with the rotation belt wheel.

Further, support band mechanism further includes a servo motor, and the servo motor is set by a motor mount It sets on an installation seat plate wherein, the support rod close to the servo motor side is mounted on hollow by a bearing On axis, a bearing is arranged between the hollow shaft and the roll body；The servo motor by a transmission belt component and it is described in Empty axis one end connection, drives the support rod that the support belt roller is driven to swing.

Further, support band mechanism includes three support belt rollers, is mounted on institute by a support rod respectively Roll body side is stated, three support rods of the roll body side are set on the roll body, the installation of each support rod Hole along be arranged radially be respectively arranged with spacing block set and cooperation table top, the spacing block set and the cooperation table top combination limits Support the interval location between belt roller.

Further, several alignment sensors are additionally provided on the installation seat plate of the hollow shaft side, it is described fixed Level sensor is used to limit the turned position of the support belt roller.

By adopting the above technical scheme, electromagnetism roller sequence is formed by multiple electromagnetism rollers, is realized by power supply unit to electricity The thermostatic control of magnetic roller and hot air circulation realize the rapid draing of pole piece；It is fast to meet the pole piece heating equipment speed of service, Temperature rises that fast, uniformity is high, heating time short technique requirement.

Detailed description of the invention

Fig. 1 is the drying oven mould group tomograph of the embodiment of the present invention；

Fig. 2 is another visual angle tomograph of drying oven mould group of the embodiment of the present invention；

Fig. 3 is that the drying oven mould group of the embodiment of the present invention omits tomograph；

Fig. 4 is that tomograph is omitted at another visual angle of drying oven mould group of the embodiment of the present invention；

Fig. 5 is the drying oven mould group sectional structure chart of the embodiment of the present invention；

Fig. 6 is electromagnetism roll structure figure in the drying oven mould group of the embodiment of the present invention；

Fig. 7 is the up-draught device tomograph of the embodiment of the present invention；

Fig. 8 is the up-draught device sectional structure chart of the embodiment of the present invention；

Fig. 9 is the lower blowing device tomograph of the embodiment of the present invention；

Figure 10 is the up-draught device sectional structure chart of the embodiment of the present invention；

In figure, 10- drying oven, 20- pole piece base band, the dry furnace body of 11-, 12- furnace body support, 13- up-draught device, 14- Lower blowing device, 15- electromagnetism roller, 16- enter band mouth, 17- band outlet, 18- roll body driving motor, 19- synchronous belt, 110- tensioning Wheel, 111- transition pulley, the dry transition roller of 112- first, 113- enter band limit assembly, the dry transition roller of 114- second, 115- the One dry oscillating roller, 116- oscillating roller driving assembly, dry transition roller among 117-, the dry oscillating roller of 118- second, 119- the One adjusting turntable, the dry transition roller of 120- third, the dry oscillating roller of 121- third, 122- second adjust turntable, and 123- the 4th is dry Dry transition roller, the dry transition roller of 124- the 5th, 125- go out band limit assembly, the side 126- mounting bracket, 127- air-heater, 128- Circulating fan, the first blast pipe of 129-, 130- hot wind filter, the first backwind tube of 131-, the second backwind tube of 132-, 133- second Blast pipe, 134- third blast pipe；The first air inlet of 1301-, the second air inlet of 1302-, 1303- the first wind chamber, 1304- second Wind chamber, the enterprising air holes of 1305-, the upper outlet air gap 1306-, the upper air-exhausting duct of 1307-, 1401- third air inlet, 1402- third wind Chamber, outlet air gap under 1403-, air-exhausting duct under 1404-；151- roll body, 152- installation seat plate, 153- power lug, 154- rotation Belt wheel, 155- support belt roller, 156- support rod, 157- hollow shaft, 158- transmission belt component, 159- servo motor, 1510- motor peace Fill seat；1511- alignment sensor.

Specific embodiment

Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.

As shown in Figs. 1-5, the drying oven mould group 10 includes dry furnace body 11, up-draught device 13 and lower blowing device 14, the up-draught device 13 and the lower blowing device 14 are separately mounted to dry the upper and lower part of furnace body 11, described Dry 11 side of furnace body is provided with air-heater 127 by side mounting bracket 126, and the air-heater 127 passes through blast pipe It is connected to respectively with the up-draught device 13 and the lower blowing device 14；

The dry furnace body 11 includes multiple above-mentioned electromagnetism rollers 15, and multiple electromagnetism rollers 15 are in the dry furnace body 11 At least two rows of electromagnetism roller sequences are formed, pole piece base band 20 enters from band 16 position of mouth that enters of the dry furnace body 11, top-bottom cross It is left after each electromagnetism roller 15 in electromagnetism roller sequence from the band outlet 17 of the dry furnace body 11；The electromagnetism roller The middle position of sequence is additionally provided with intermediate dry transition roller 117, and one end of the intermediate dry transition roller 117 is equipped with roll body Driving motor 18, the roll body driving motor 18 is by synchronous belt 19 and setting in the intermediate dry transition roller 117 and roll body The rotation belt wheel 154 of 151 one end drives the roll body 151 and the intermediate dry transition roller 117 to rotate synchronously.

Wherein, it is described enter band mouth 16 be disposed with the first dry transition roller 112 and the second dry transition roller 114, it is described 17 position of band outlet is disposed with the dry transition roller 123 of the dry transition roller the 120, the 4th of third and the 5th dry transition roller 124, Pole piece base band 20 passes sequentially through the dry transition roller 114 of the described first dry transition roller 112, second, the electromagnetism roller sequence, described Third dries transition roller 120, the 4th dry transition roller 123 and the 5th dry transition roller 124；Corresponding described first is dry Dry 112 two sides of transition roller are equipped with into band limit assembly 113, and corresponding described 5th dry 124 two sides of transition roller are equipped with out band Limit assembly 125；Described second dry 114 side of transition roller is provided with the first dry oscillating roller 115, the described first dry swing 115 one end of roller is connect with an oscillating roller driving assembly 116；Intermediate dry 117 side of transition roller is provided with the second dry pendulum Dynamic roller 118, described second dry 118 one end of oscillating roller are provided with the first adjusting turntable 119；The dry transition roller 120 of the third Side is provided with the dry oscillating roller 121 of third, and dry 121 one end of oscillating roller of the third is provided with the second adjusting turntable 122.

Wherein, the described first dry drying of transition roller 112, second transition roller 114, the third dry transition roller 120, institute The one end for stating the 4th dry transition roller 123 and the 5th dry transition roller 124 is provided with the rotation belt wheel 154, the roller Body driving motor 18 is connect by the synchronous belt 19 with each rotation belt wheel 154；If being provided on the synchronous belt 19 Dry tensioning wheel 110 and several transition pulley 111, the tensioning wheel 110 and the transition pulley 111 are mounted on the dry furnace body 11 side.

As is seen in figs 7-10, the up-draught device 13 includes the first air inlet 1301 and the second air inlet 1302, described First air inlet 1301 is connected to the first wind chamber 1303, and second air inlet 1302 is connected to the second wind chamber 1304, the heat Wind blower 127 is connected to by the first blast pipe 129 with first air inlet 1301, and the second blast pipe 133 and described the are passed through The connection of two air inlets 1302；The first wind chamber 1303 and the second wind chamber 1304 are separated by a tilt clapboard；Described One wind chamber 1303 is connected to by multiple enterprising air holes 1305 with the dry furnace body 11, and the second wind chamber 1304 passes through on several Outlet air gap 1306 is connected to the dry furnace body 11.

Wherein, the lower blowing device 14 includes third air inlet 1401 and third wind chamber 1402, the air-heater 127 It is connected to by a third blast pipe 134 with the third wind chamber 1402, the third wind chamber 1402 passes through several lower outlet air gaps 1403 are connected to the drying oven 11.

Wherein, it is provided with several upper air-exhausting ducts 1307 on the up-draught device 13, is arranged on the lower blowing device 14 There are several lower air-exhausting ducts 1404, the upper air-exhausting duct 1307 and the lower air-exhausting duct 1404 connect with the dry furnace body 11 respectively It is logical.

Wherein, hot wind filter 130 is additionally provided in the side mounting bracket 126, the air-heater 127 connects described It is connected to respectively with second blast pipe 133 and the third blast pipe 134 after hot wind filter 130.

Wherein, circulating fan 128, the circulating fan 128 and the drying are additionally provided in the side mounting bracket 126 Furnace body 11 enters to be provided with the first backwind tube 131 and the connection of the second backwind tube 132, the circulation on the upside of band mouth 16 and band outlet 17 Blower 128 is connected to first blast pipe 129；Second backwind tube 132 is connected to external air intake vent.

Wherein, the dry furnace body 11 is mounted on a furnace body support 12, and the lower blowing device 14 is arranged in the furnace In body support frame 12, the lower outlet air gap 1403 of the lower blowing device 14 is connected to the dry furnace body 11.

Wherein, the upper outlet air gap 1306 is corresponded in the dry furnace body 11 be provided with wind deflector one by one.

Due to using up-draught device 13 and lower blowing device 14, further by the setting of multiple wind chambers, and go out The setting of wind gap and air inlet hole when so that hot wind entering dry furnace body 11, is able to carry out adequately adjustment flow and stream Speed meets the requirement of pole piece base band drying process, in addition leads to so that hot wind uniformity is preferable when hot wind enters in furnace body It crosses and is entering band mouth 16 and the setting backwind tube of band outlet 17, sirocco reclamation is carried out by circulating fan 128, waste heat recovering effect is good.

As shown in fig. 6, the electromagnetism roller 15 includes that roll body 151, power lug 153 and support band mechanism, the electric wire connect First 153 are mounted on one end of the roll body 151, and the roll body 151 is mounted on one group of installation seat plate 152 by one group of bearing, Support band mechanism includes support belt roller 155 and support rod 156, and at least one support belt roller 155 is pacified by the support rod 156 Mounted in 151 side of roll body, pass through one group of bearing connection between the support rod 156 and the roll body 151；The roll body 151 one end connecting with the power lug 156 are also equipped with rotation belt wheel 154, and roll body driving motor 18 passes through synchronous belt 19 It is connect with the rotation belt wheel 154.

Wherein, support band mechanism further includes a servo motor 159, and the servo motor 159 passes through a motor mount 1510 are disposed therein on an installation seat plate 152, and the support rod 156 close to 159 side of servo motor passes through One bearing is mounted on hollow shaft 157, is arranged a bearing between the hollow shaft 157 and the roll body 151；The servo motor 159 are connect by a transmission belt component 158 with described 157 one end of hollow shaft, and the support rod 156 is driven to drive the support belt roller 155 swing.

Wherein, support band mechanism includes three support belt rollers 155, is mounted on respectively by a support rod 156 Three support rods 156 of 151 side of roll body, 151 side of roll body are set on the roll body 151, Mei Yisuo It states the mounting hole of support rod 156 and is respectively arranged with spacing block set and cooperation table top, the spacing block set and institute along being arranged radially State the interval location between cooperation table top combination limitation support belt roller 155.

Wherein, several alignment sensors 1511 are additionally provided on the installation seat plate 152 of 157 side of hollow shaft, The alignment sensor 1511 is used to limit the turned position of the support belt roller 155.

It can be by pole piece when one of electromagnetism roller 15 breaks down due to being provided with support band mechanism on electromagnetism roller 15 Base band 20 is mounted on the support rod failure 155 of the support with mechanism, and forms electromagnetism roller sequence by electromagnetism roller 15, so that having Enough spaces carry out the maintenance of electromagnetism roller 155；Any one electromagnetism roller 155, which can be detached individually, carries out maintenance replacement, passes through Electromagnetism roller sequence carries out threading arrangement, and pole piece base band 20 is sufficiently dried in drying oven, and support band mechanism is provided with Three support belt rollers 155 support and keep certain interval between belt roller 155, so as to guarantee that pole piece base band 20 is sufficiently strutted.

In the description of the invention patent, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction ", " row ", " column " is based on attached drawing Shown in orientation or positional relationship, be merely for convenience of description the invention patent and simplify description, rather than indication or suggestion institute The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this hair The novel limitation of bright patent.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the invention patent, the meaning of " plurality " is at least two, such as two It is a, three etc., unless otherwise specifically defined.

In patent of invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu Calmly ", the terms such as " connected " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field For those of ordinary skill, concrete meaning of the above-mentioned term in the invention patent can be understood as the case may be.

In the invention patent unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down " It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.

In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.

Claims

1. a kind of improvement hot-blast circulation dry furnace, which is characterized in that including drying furnace body, up-draught device and lower blowing device, The up-draught device and the lower blowing device are separately mounted to the upper and lower part of dry furnace body, in the dry furnace body one Side is provided with air-heater by side mounting bracket, the air-heater by blast pipe respectively with the up-draught device and The lower blowing device connection；The dry furnace body includes multiple electromagnetism rollers, and multiple electromagnetism rollers are in the drying oven body At least two rows of electromagnetism roller sequences are formed, pole piece base band enters from the band mouth position that enters of the dry furnace body, and top-bottom cross passes through electricity It is left after each electromagnetism roller in magnetic roller sequence from the band outlet of the dry furnace body；The interposition of the electromagnetism roller sequence It sets and is additionally provided with intermediate dry transition roller, one end of the intermediate dry transition roller is equipped with roll body driving motor, the roll body Driving motor is by synchronous belt and the rotation of the intermediate dry transition roller and roll body one end is arranged in roll body described in wheel drive It is rotated synchronously with the intermediate dry transition roller.

2. a kind of improvement hot-blast circulation dry furnace according to claim 1, which is characterized in that described to enter to set gradually with mouth There are the first dry transition roller and the second dry transition roller, the band outlet position is disposed with third dry transition roller, the 4th Dry transition roller and the 5th dry transition roller, pole piece base band pass sequentially through the described first dry transition roller, the second dry transition roller, The dry transition roller of the electromagnetism roller sequence, the third, the 4th dry transition roller and the 5th dry transition roller；It is corresponding Described first dry transition roller two sides are equipped with into band limit assembly, and corresponding described 5th dry transition roller two sides are equipped with out band Limit assembly；The second dry transition roller side is provided with the first dry oscillating roller, described first dry oscillating roller one end with The connection of one oscillating roller driving assembly；The intermediate dry transition roller side is provided with the second dry oscillating roller, and described second is dry Oscillating roller one end is provided with the first adjusting turntable；The dry transition roller side of the third is provided with the dry oscillating roller of third, described The dry oscillating roller one end of third is provided with the second adjusting turntable.

3. a kind of improvement hot-blast circulation dry furnace according to claim 2, which is characterized in that the described first dry transition Roller, second dry the dry transition roller of transition roller, the third, the 4th dry transition roller and the 5th dry transition roller One end is provided with the rotation belt wheel, and the roll body driving motor is connect by the synchronous belt with each rotation belt wheel； A plurality of tensioning wheels and several transition pulley are provided on the synchronous belt, the tensioning wheel and the transition pulley are mounted on described The side of dry furnace body.

4. a kind of improvement hot-blast circulation dry furnace according to claim 1, which is characterized in that the up-draught device includes First air inlet and the second air inlet, first air inlet are connected to the first wind chamber, second air inlet and the second wind chamber Connection, the air-heater are connected to by the first blast pipe with first air inlet, and the second blast pipe and described second are passed through Air inlet connection；The first wind chamber and the second wind chamber are separated by a tilt clapboard；The first wind chamber passes through multiple Enterprising air holes is connected to the dry furnace body, and the second wind chamber is connected to by several upper outlet air gaps with the dry furnace body.

5. a kind of improvement hot-blast circulation dry furnace according to claim 4, which is characterized in that the lower blowing device includes Third air inlet and third wind chamber, the air-heater are connected to by a third blast pipe with the third wind chamber, the third Wind chamber is connected to by several lower outlet air gaps with the dry furnace body.

6. a kind of improvement hot-blast circulation dry furnace according to claim 5, which is characterized in that set on the up-draught device Several upper air-exhausting ducts are equipped with, several lower air-exhausting ducts, the upper air-exhausting duct and the lower air draft are provided on the lower blowing device Pipe is connected to the dry furnace body respectively；Hot wind filter, the air-heater connection are additionally provided in the side mounting bracket It is connected to respectively with second blast pipe and the third blast pipe after the hot wind filter.

7. a kind of improvement hot-blast circulation dry furnace according to claim 5, which is characterized in that in the side mounting bracket also It is provided with circulating fan, the circulating fan and entering for the dry furnace body are provided with the first backwind tube on the upside of band mouth and band outlet It is connected with the second backwind tube, the circulating fan is connected to first blast pipe；Second backwind tube and external air intake vent Connection.

8. a kind of improvement hot-blast circulation dry furnace according to claim 1, which is characterized in that the electromagnetism roller includes roller Body, power lug and support band mechanism, the power lug are mounted on one end of the roll body, and the roll body passes through one group of bearing It is mounted on one group of installation seat plate, support band mechanism includes that support belt roller and support rod, at least one support belt roller pass through institute It states support rod and is mounted on the roll body side, pass through one group of bearing connection between the support rod and the roll body；The roll body The one end connecting with the power lug is also equipped with rotation belt wheel, and roll body driving motor passes through synchronous belt and the rotation belt wheel Connection.

9. a kind of improvement hot-blast circulation dry furnace according to claim 8, which is characterized in that support band mechanism further includes One servo motor, the servo motor are disposed therein on an installation seat plate by a motor mount, are watched close to described The support rod for taking motor side is mounted on a hollow shaft by a bearing, is arranged one between the hollow shaft and the roll body Bearing；The servo motor is connect by a transmission belt component with described hollow shaft one end, is driven described in the support rod drive Belt roller is supportted to swing.

10. a kind of improvement hot-blast circulation dry furnace according to claim 8, which is characterized in that support band mechanism includes Three support belt rollers are mounted on the roll body side by a support rod respectively, described in three of the roll body side Support rod is set on the roll body, the mounting hole of each support rod along be arranged radially be respectively arranged with spacing block set and Cooperate table top, the interval location between the spacing block set and the cooperation table top combination limitation support belt roller.