CN104215065A - Single-horizontal-pipe type continuous heat treatment device for carbon intermediate - Google Patents
Single-horizontal-pipe type continuous heat treatment device for carbon intermediate Download PDFInfo
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Abstract
The invention relates to a single-horizontal-pipe type continuous heat treatment device for a carbon intermediate. The device comprises a feeding system, a heating section, a cooling section, a tail gas system and a discharging system, which are sequentially connected, wherein the feeding system is formed by a tapered feed bin with a bottom funnel opening, and a feeder; the feeding system, the heating section, the cooling section and the discharging system are connected with a measurement and control system through a sensing circuit; the heating section is a long barrel of which the two ends are sealed by sealing covers, and the cross section of the long barrel is formed by left and right symmetric straight edges and upper and lower symmetric semicircular arc edges; a first screw rod is arranged in the whole lower semicircular arc edge of the whole long barrel; the cooling section is a metal long cylinder of which the two ends are sealed by sealing covers; an interlayer water jacket is arranged on the outer surface of the metal long cylinder. The device is used for treating carbon intermediate materials which mainly comprise powder or small particles, and is low in energy consumption and cost and easy to operate, and pollution is maximally reduced.
Description
Technical field
The present invention relates to a kind of single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, continuous heat is carried out mainly for based on the carbonaceous intermediate material of powder or granule, and this device can meet the requirement completely cutting off air and eliminating flammable fugitive constituent when material is heated, more particularly, its main application fields is the charing process of lithium ion battery negative material intermediate.
Background technology
In the industrial production of Carbon Materials for Anodes of Lithium-Ion Batteries, often will to the heat treatment carrying out about 1000 DEG C of carbonaceous intermediate, be usually referred to as in the industry charing process, equipment corresponding is with it called retort.Partial Species carbonaceous intermediate, after charing process, can directly carry out using or selling as negative pole product.Some carbonaceous intermediate needs finally to carry out graphitization processing, and graphitization processing belongs to high energy consumption industry, and the tail gas with graphitization discharge also can cause environmental pollution.Before graphitization, charing is carried out in advance to them and can significantly improve material tap density, reduce volatile matter, thus improve graphitizing furnace list furnace output, significantly reduce graphitization production cost, alleviate environmental protection pressure.
At present, two classes are mainly contained, push pedal road kiln and shaft furnace for based on the annealing device of the carbonaceous intermediate material of powder or granule.Above-mentioned two kinds of annealing devices have its respective advantage but all there is considerable obvious deficiency.
Pushed bat kiln, as based on the annealing device of the carbonaceous intermediate material of powder or granule, has the multiple shortcomings being difficult to overcome: 1, the loss of heating element heater and crucible is very large, and equipment operation maintenance cost is large; 2, being heat-treated carbonaceous intermediate material is indirect, and the heating of push pedal and crucible belongs to invalid heating, and the thermal efficiency is low, and energy consumption is large.3, the use of the protective gas of a large amount of inertia, further increases production cost; 4, manually crucible is filled, discharging operation, troublesome poeration, pollutes more, increases operator's amount of labour and is unfavorable for the health of operator; 5, the volatile matter that produces of high volatile material at high temperature can on the heating element heater of pushed bat kiln carbon distribution, thus cause heating element heater frequent breakage, therefore pushed bat kiln cannot process high volatile material.
Shaft furnace is as based on the annealing device of the carbonaceous intermediate material of powder or granule, and its shortcoming is clearly too: 1, intermittently operated, and the production cycle is longer, cannot realize large-scale continuous production, and unit equipment production capacity is low; 2, in each production process, its heater belongs to invalid heating equally to the heating that stove is discriminated, and there is larger energy waste, the thermal efficiency is low; 3, rapid heat cycle repeatedly discriminated by stove, causes stove Zhen general lower for service life; 4, because stove Zhen mostly is deep-well form, its operation process bothers and many dust fill the air, thus also there is the large situation with being unfavorable for operator's health of operator's amount of labour.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of low energy consumption, low cost, simple to operate, at utmost reduce pollution, meet material completely cuts off the requirement of air and discharge imflammable gas single horizontal tube carbonaceous intermediate apparatus for continous heat treatment when high temperature, main application is the charing process of lithium ion battery negative material intermediate.
For solving the problem, the present invention is achieved by the following technical solutions:
A kind of single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, comprises the feed system, bringing-up section, cooling section and the discharge system that connect successively; Feed system is a lural taper feed bin of bottom belt and batcher; Feed system, bringing-up section, cooling section are all connected with TT&C system by sensing circuit with discharge system; Bringing-up section is the microscler cylindrical shell that two ends have capping closed, and microscler cylindrical shell is integrally made up of resistant to elevated temperatures Heat Conduction Material, wherein has charging aperture above one end, has discharging opening below another end; The one or more volatile ingredient outlets communicated with cylinder lumen in addition at the top of microscler cylindrical shell; Part between microscler cylindrical shell charging aperture and discharging opening, is flatly placed in the burner hearth of long cylinder heating furnace; Microscler cylindrical shell cross section is symmetrical straight flange, upper and lower symmetrical semi-circular arc limit; In second arc-shaped edges of whole segment length's shape cylindrical shell, whole process is equipped with first screw rod, and the maximum outside diameter of the first screw rod and the cambered surface of microscler second circular arc of cylindrical shell match; First screw rod transmission main shaft passes from the capping of discharging opening one end, through water-cooled bearing, air cooling fin shaft part, connects the first deceleration motor; Above-mentioned cooling section is the metal cylindrical body that two ends have capping closed, horizontal setting; Metal cylindrical body appearance has intercalated water sleeve; Metal cylindrical body has grog import above one end, the grog outlet having one or two adjacent to each other below another end; In metal cylindrical body, whole process is equipped with second screw rod, and the maximum outside diameter of the second screw rod and the internal diameter of metal cylindrical body match; Second screw rod transmission main shaft is hollow, interior logical recirculated cooling water; Second screw rod transmission main shaft passes from the capping of grog exit end and connects the second deceleration motor; Above-mentioned discharge system is combined by splicing scuffing of cylinder bore and two sealing splice jugs.
Above-mentioned connecting successively is that feed system batcher connects the charging aperture of bringing-up section by air valve, and the discharging opening of bringing-up section connects the grog import of below cooling section by bellows; One or two grog adjacent to each other outlet of cooling section connects sealing splice jug by splicing scuffing of cylinder bore.
Operation principle of the present invention is: powdery or granular carbonaceous intermediate feed enter from the taper feed bin of feed system, through air valve or conveying worm, or both coordinate with the series connection of random order isolation, rely on batcher to control dosing, charging is not interrupted; Both completely cut off air, and achieved again carbonaceous intermediate feed and enter lying pipe from charging aperture continuously; In the microscler cylindrical shell of lying pipe, under the helical blade of the first screw rod advances, carbonaceous intermediate feed, in the cambered surface of microscler second circular arc of cylindrical shell, is constantly stirred, and a microscler drum shaft in edge is to moving horizontally; The long cylinder heating furnace be positioned at outside microscler cylindrical shell passes through heat trnasfer, microscler barrel wall is heated, microscler barrel wall heats the carbonaceous intermediate feed in it and the first screw rod again simultaneously, the first screw rod after heating is again conversely to carbonaceous intermediate feed uniformly transfer heat, required maximum heat conduction distance when shortening heating material, make the heating of carbonaceous intermediate feed evenly.The a large amount of volatile matters produced are focused in the semi arch volume plenum of top in microscler cylindrical shell, and move to volatile ingredient outlet along microscler cylindrical shell, collect process by exhaust system is unified.Above-mentioned carbonaceous intermediate feed, through the heating lying pipe process of bringing-up section, becomes the discharging opening that temperature is the high temperature carbonaceous intermediate arrival lying pipe of 800-1000 DEG C.High temperature carbonaceous intermediate enters below cooling section through bellows from grog import; Cooling section metal cylindrical body in, high temperature carbonaceous intermediate is advanced by the second screw rod and stirs, and the second screw rod transmission main shaft being full of recirculated cooling water hollow directly cools the heat exchange of high temperature carbonaceous intermediate; The also continuous high temperature carbonaceous intermediate heat exchange with stirring movement by metal long cylinder body wall of recirculated cooling water simultaneously in intercalated water sleeve, high temperature carbonaceous intermediate is sufficiently cooled.When cooled carbonaceous intermediate arrives grog outlet, under the control of TT&C system, selectively enter sealing splice jug by splicing scuffing of cylinder bore, complete isolated air discharging, and utilize two sealing splice jug one after the other work, make discharging uninterrupted, realize the object of continuous heat.
Compared with the prior art, innovative point of the present invention is:
1. carbonaceous intermediate usually has the volatile matter of higher proportion before not being heat-treated, the existence of this volatile matter makes it easily be sticked together when heating and harden, and adhesion and caking can cause subsequent treatment to increase cost, and product quality is reduced, directly can affect heat treatment process discharge difficulty time serious.This volatile matter is discharged with heating is a large amount of simultaneously, in the spiral propeller of prior art, because its outward appearance interface of existing conveying worm is all circular, do not arrange special gas passage, and powder is filled with the space of whole conveyer substantially.This makes a large amount of escaping gases produced when material heats in the process being discharged into exhaust system, carry a large amount of by heating powder, particle, cause obvious yield losses, more seriously very easily there is blocking tail gas pipeline, so that build the pressure in generator tube, the safety problems such as flammable explosive gas leaks, therefore traditional conveying worm is abandoned in the present invention completely.The present invention utilizes the first screw rod and cross section to be symmetrical straight flange, the microscler cylindrical shell on upper and lower symmetrical semi-circular arc limit coordinates, achieve high temperature carbonaceous intermediate limit dexterously and stir propelling, limit thermal exhaust, advanced by the bottom of screw propulsion at lying pipe by the carbonaceous intermediate heated, carbonaceous intermediate is added thermogenetic escaping gas above auger axle, namely the headroom of lying pipe is advanced, both take their own roads, be independent of each other, therefore can not cause, the phenomenon being discharged into exhaust system swept along by a large amount of material by gas, more not entail dangers to production safety.In microscler cylindrical shell of the present invention, the semi arch volume plenum design of top, overcomes the technical barrier of the spiral propeller " gas thing walks abreast " of prior art.
2. the first screw rod transmission main shaft of the present invention passes from the capping of discharging opening one end, all through water-cooled bearing, air cooling fin shaft part, connects deceleration motor; This solves drive motors to be connected with high temperature main shaft, achieve the packing seal technical barrier of power transmission shaft in hot environment.
3. the present invention utilizes at feed zone and coordinates by batcher control dosing through air valve, utilizes the helical blade of screw rod constantly to advance at bringing-up section, cooling section, selects two sealing splice jug one after the other work at discharging section by splicing scuffing of cylinder bore; Make charging, heating, cooling and discharging process uninterrupted, realize the object of continuous heat.
4. the present invention can produce high-purity carbonaceous intermediate powder; The volatile matter unification produced connects exhaust system by pipeline,
There is no air pollution emission thing, there is no underground pollution emission yet.Automaticity of the present invention is higher, belongs to domestic initiation.The present invention cools back debit face at impurity and employs by-product plant, overcomes and produces emission to the pollution of environment, have novelty.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Mark in accompanying drawing is: 1 taper feed bin; 2 batchers; 3 microscler cylindrical shells; 4 charging apertures; 5 volatile ingredient outlets; 6 discharging openings; A 7 long heating furnace; 8 burner hearths; 9 first screw rods; 10 first deceleration motors; 12 intercalated water sleeves; 13 grog imports; 14 grog outlets; 15 second screw rods; 16 second deceleration motors; 17 sealing splice jugs; 18 bellowss.
Detailed description of the invention
Be below specifically describe the present invention with reference to accompanying drawing specific embodiment, but must know, this embodiment can not be used for being construed as limiting the invention.
Embodiment
1
With reference to accompanying drawing 1 and accompanying drawing 2, a kind of single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, comprises the feed system, bringing-up section, cooling section and the discharge system that connect successively; Feed system is a lural taper feed bin (1) of bottom belt and batcher (2); Feed system, bringing-up section, cooling section are all connected with TT&C system by sensing circuit with discharge system; Bringing-up section is the microscler cylindrical shell (3) that two ends have capping closed, and microscler cylindrical shell (3) is integrally made up of resistant to elevated temperatures Heat Conduction Material, wherein has charging aperture (4) above one end, has discharging opening (6) below another end; The volatile ingredient outlet (5) communicated with cylinder lumen in addition at the top of microscler cylindrical shell; Part between microscler cylindrical shell (3) charging aperture (4) and discharging opening (6), is flatly placed in the burner hearth (8) of long cylinder heating furnace (7); Microscler cylindrical shell (3) cross section is symmetrical straight flange, upper and lower symmetrical semi-circular arc limit; In second arc-shaped edges of whole segment length's shape cylindrical shell (3), whole process is equipped with first screw rod (9), and the maximum outside diameter of the first screw rod (9) and the cambered surface of microscler cylindrical shell (3) second circular arc match; First screw rod (9) transmission main shaft passes from the capping of discharging opening (6) one end, through water-cooled bearing, air cooling fin shaft part, connects the first deceleration motor (10); Above-mentioned cooling section is the metal cylindrical body (11) that two ends have capping closed, horizontal setting; Metal cylindrical body (11) appearance has intercalated water sleeve (12); There is grog import (13) above metal cylindrical body (11) one end, below another end, have grog outlet (14) that two adjacent to each other; Metal cylindrical body (11) interior whole process is equipped with second screw rod (15), and the maximum outside diameter of the second screw rod (15) and the internal diameter of metal cylindrical body (11) match; Second screw rod transmission main shaft is hollow, interior logical recirculated cooling water; Second screw rod transmission main shaft passes from the capping of grog outlet (14) one end and connects the second deceleration motor (16); Above-mentioned discharge system is combined by splicing scuffing of cylinder bore and two sealings splice jug (17).
Above-mentioned connection is successively that feed system batcher (2) connects the charging aperture (4) of bringing-up section by air valve, and the discharging opening (6) of bringing-up section connects the grog import (13) of below cooling section by bellows (18); One or two grog adjacent to each other outlet (14) of cooling section connects sealing splice jug (17) by splicing scuffing of cylinder bore.
Above-mentioned batcher (2) is star-shaped feeding machine.
Above-mentioned intercalated water sleeve (12) has water inlet and water return outlet, and water inlet and water return outlet are by the external recirculating cooling water system of pipeline.
Volatile ingredient outlet (5) on above-mentioned lying pipe connects exhaust system by pipeline.
The above-mentioned helical blade of the first screw rod (9) and the material of axle are the heating resisting metal materials that thermal conductivity factor is greater than 45 W/m DEG C.
Above-mentioned feed system, bringing-up section and cooling section are provided with dimension inspection platform respectively.
Embodiment
2
A kind of single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, comprises the feed system, bringing-up section, cooling section and the discharge system that connect successively; Feed system is a lural taper feed bin (1) of bottom belt and batcher (2); Feed system, bringing-up section, cooling section are all connected with TT&C system by sensing circuit with discharge system; Bringing-up section is the microscler cylindrical shell (3) that two ends have capping closed, and microscler cylindrical shell (3) is integrally made up of resistant to elevated temperatures Heat Conduction Material, wherein has charging aperture (4) above one end, has discharging opening (6) below another end; The multiple volatile ingredient outlets (5) communicated with cylinder lumen in addition at the top of microscler cylindrical shell; Part between microscler cylindrical shell (3) charging aperture (4) and discharging opening (6), is flatly placed in the burner hearth (8) of long cylinder heating furnace (7); Microscler cylindrical shell (3) cross section is symmetrical straight flange, upper and lower symmetrical semi-circular arc limit; In second arc-shaped edges of whole segment length's shape cylindrical shell (3), whole process is equipped with first screw rod (9), and the maximum outside diameter of the first screw rod (9) and the cambered surface of microscler cylindrical shell (3) second circular arc match; First screw rod (9) transmission main shaft passes from the capping of discharging opening (6) one end, through water-cooled bearing, air cooling fin shaft part, connects the first deceleration motor (10); Above-mentioned cooling section is the metal cylindrical body (11) that two ends have capping closed, horizontal setting; Metal cylindrical body (11) appearance has intercalated water sleeve (12); Wherein there is grog import (13) above one end, below another end, have grog outlet (14); Metal cylindrical body (11) interior whole process is equipped with second screw rod (15), and the maximum outside diameter of the second screw rod (15) and the internal diameter of metal cylindrical body (11) match; Second screw rod transmission main shaft is hollow, interior logical recirculated cooling water; Second screw rod transmission main shaft passes from the capping of grog outlet (14) one end and connects the second deceleration motor (16); Above-mentioned discharge system is combined by splicing scuffing of cylinder bore and two sealings splice jug (17).
Above-mentioned connection is successively that feed system batcher (2) connects the charging aperture (4) of bringing-up section by air valve, and the discharging opening (6) of bringing-up section connects the grog import (13) of below cooling section by bellows (18); One or two grog adjacent to each other outlet (14) of cooling section connects sealing splice jug (17) by splicing scuffing of cylinder bore.
The random order series connection that above-mentioned batcher (2) is screw(-type) feeder or star-shaped feeding machine and screw(-type) feeder.
Above-mentioned intercalated water sleeve (12) has water inlet and water return outlet, and water inlet and water return outlet are by the external recirculating cooling water system of pipeline.
Volatile ingredient outlet (5) on above-mentioned lying pipe connects exhaust system by pipeline.
The above-mentioned helical blade of the first screw rod (9) and the material of axle are the heating resisting metal materials that thermal conductivity factor is greater than 45 W/m DEG C.
Above-mentioned feed system, bringing-up section and cooling section are provided with dimension inspection platform respectively.
The lower end of above-mentioned metal cylindrical body (11) below grog outlet (14) is connected to " Y " type distributor and is divided into two outlets.
Claims (8)
1. a single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, comprises the feed system, bringing-up section, cooling section and the discharge system that connect successively; Feed system is a lural taper feed bin (1) of bottom belt and batcher (2); Feed system, bringing-up section, cooling section are all connected with TT&C system by sensing circuit with discharge system; It is characterized in that: bringing-up section is the microscler cylindrical shell (3) that two ends have capping closed, and microscler cylindrical shell (3) is integrally made up of resistant to elevated temperatures Heat Conduction Material, wherein has charging aperture (4) above one end, has discharging opening (6) below another end; The one or more volatile ingredient outlets (5) communicated with cylinder lumen in addition at the top of microscler cylindrical shell; Part between microscler cylindrical shell (3) charging aperture (4) and discharging opening (6), is flatly placed in the burner hearth (8) of long cylinder heating furnace (7); Microscler cylindrical shell (3) cross section is symmetrical straight flange, upper and lower symmetrical semi-circular arc limit; In second arc-shaped edges of whole segment length's shape cylindrical shell (3), whole process is equipped with first screw rod (9), and the maximum outside diameter of the first screw rod (9) and the cambered surface of microscler cylindrical shell (3) second circular arc match; First screw rod (9) transmission main shaft passes from the capping of discharging opening (6) one end, through water-cooled bearing, air cooling fin shaft part, connects the first deceleration motor (10); Above-mentioned cooling section is the metal cylindrical body (11) that two ends have capping closed, horizontal setting; Metal cylindrical body (11) appearance has intercalated water sleeve (12); There is grog import (13) above metal cylindrical body (11) one end, below another end, have one or two grog adjacent to each other to export (14); Metal cylindrical body (11) interior whole process is equipped with second screw rod (15), and the maximum outside diameter of the second screw rod (15) and the internal diameter of metal cylindrical body (11) match; Second screw rod transmission main shaft is hollow, interior logical recirculated cooling water; Second screw rod transmission main shaft passes from the capping of grog outlet (14) one end and connects the second deceleration motor (16); Above-mentioned discharge system is combined by splicing scuffing of cylinder bore and two sealings splice jug (17).
2. one according to claim 1 single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, it is characterized in that: described connection is successively that feed system batcher (2) connects the charging aperture (4) of bringing-up section by air valve, the discharging opening (6) of bringing-up section connects the grog import (13) of below cooling section by bellows (18); One or two grog adjacent to each other outlet (14) of cooling section connects sealing splice jug (17) by splicing scuffing of cylinder bore.
3. one according to claim 1 single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, is characterized in that: described batcher (2) is star-shaped feeding machine or screw(-type) feeder or both random orders series connection.
4. one according to claim 1 single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, is characterized in that: described intercalated water sleeve (12) has water inlet and water return outlet, and water inlet and water return outlet are by the external recirculating cooling water system of pipeline.
5. one according to claim 1 single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, is characterized in that: the volatile ingredient outlet (5) on described lying pipe connects exhaust system by pipeline.
6. one according to claim 1 single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, is characterized in that: the described helical blade of the first screw rod (9) and the material of axle are the heating resisting metal materials that thermal conductivity factor is greater than 45 W/m DEG C.
7. one according to claim 1 single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, is characterized in that: described feed system, bringing-up section and cooling section are provided with dimension inspection platform respectively.
8. one according to claim 1 single horizontal tube carbonaceous intermediate apparatus for continous heat treatment, it is characterized in that: the structure that described metal cylindrical body (11) below only has the grog of to export (14) is connected to " Y " type distributor in the lower end of this grog outlet (14) and is divided into two outlets.
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| CN201410447745.2A CN104215065B (en) | 2014-09-04 | 2014-09-04 | A kind of single horizontal tube carbonaceous intermediate apparatus for continous heat treatment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107131762A (en) * | 2016-02-26 | 2017-09-05 | 泰州市兴华齿轮制造有限公司 | A kind of dual compound smelting furnace |
| CN108246211A (en) * | 2018-02-02 | 2018-07-06 | 江苏中圣园科技股份有限公司 | Powder dynamic calcining method |
| CN108658061A (en) * | 2018-08-01 | 2018-10-16 | 哈尔滨工业大学 | A kind of reaction unit preparing graphene powder for combustion synthesis method |
| CN110953919A (en) * | 2019-12-11 | 2020-04-03 | 徐国荣 | Material cooling machine |
| CN111689499A (en) * | 2020-06-29 | 2020-09-22 | 舒克孝 | Uniform internal heat stirring type activation kiln |
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