CN203807178U

CN203807178U - Energy-saving high-yield novel graphitization furnace

Info

Publication number: CN203807178U
Application number: CN201420177551.0U
Authority: CN
Inventors: 张茂勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-13
Filing date: 2014-04-13
Publication date: 2014-09-03
Anticipated expiration: 2024-04-13

Abstract

The utility model relates to an energy-saving high-yield novel graphitization furnace, which belongs to the field of graphitization furnaces. According to the device, a conventional naturally cooled graphitization furnace core structure is abandoned but forced cooling is adopted, so that the graphitization furnace cooling time is greatly shortened, and the outer wall heat loss is reduced due to adoption of a detachable heat preservation layer. The graphitization furnace is specifically structurally characterized in that a coil tube type air heat exchanger is arranged inside a graphitization furnace body; single-layer or multi-layer metal tubes can be adopted for a heat exchange structure of the cooling coil tube; the tube can be arranged along an outer wall, can be also arranged at the bottom of the furnace body and can be arranged in a one-way tube row manner and a double-way manner; an air inlet of the cooling coil tube is connected with an air inlet collecting tube; an air outlet of the cooling coil tube is connected with an air outlet collection tube; a detachable heat preservation layer is arranged on an outer wall surface of the outer wall of the graphitization furnace, and then the power consumption in the power-on heating period and the heat radiation amount in the heat preservation period are greatly reduced. Due to adoption of a forced cooling device, the cooling time can be shortened to be 3-5 days, and the capacity of a graphitized product can be improved by 50-70%.

Description

A kind of novel graphite stove of energy-saving high yield

Technical field

The utility model belongs to graphitizing furnace field, particularly a kind of novel graphite stove of energy-saving high yield.

Background technology

Graphitizing furnace is for the production of special carbon material products such as steel-making carbon anode material, cell negative electrode material, carbon fiber, graphite heat conducting material, crucible, carburizing agent, carbon composites, a common kiln production line comprises multiple identical body of heater unit, the each body of heater of the existing old type of furnace is laterally divided into three layers from outside to inside: the about 0.5m of clay brick exterior wall, the about 0.8m of calcined coke thermal insulation layer, combustion chamber layer is the machined object bed of material and stopping composition (after-smithing petroleum coke) thereof.Operating process is: shove charge, and---energising heating also---is incubated---cooling---coming out of the stove by more than heating material to 2800 DEG C, the present situation operational cycle is 15～20 days, wherein switches on approximately 2～3 days heat-up times, is incubated approximately 1～2 day, cooling approximately 8～11 days, come out of the stove, shove charge approximately 2～4 days.Adopt a set of transformer can only heat for a body of heater at every turn, belong to batch operation mode, the wherein about 7000kW of average electrical heating power, every stove current consumption approximately 350,000 kWh, therefore energy consumption is very large, belongs to " three height " industrial sector of highly energy-consuming, high pollution, maximum discharge.

The graphitizing furnace type of cooling adopts ambient air naturally to lower the temperature, consuming time longer.Produce every year on average the special carbon goods of 20 stoves and calculate as comprised 9 bodies of heater, every stove by every production line, every production line adds up to comes out of the stove 180 times, every annual current consumption of production line can reach 6,300 ten thousand kWh, as calculated by 0.9 yuan/kWh of electricity price, amounts to grid electricity fee cost and can reach 5,670 ten thousand yuan.This old graphitizing furnace type of furnace falls behind, and belongs to high energy consumption mode of operation.

External Japan has developed the graphitizing furnace of novel continuous operation, material to be processed is mobile heating slowly, effectively reducing heat radiation scatters and disappears, the electricity charge are saved, but its problem is that its temperature of charge is the highest can only be heated to approximately 2500 DEG C, do not reach 2800 DEG C of above requirements, make the quality of its converted products and kind not as good as being exactly the static heating type of furnace, therefore not scale popularization in industry.

In sum, this field still can not ensure product high quality, the type of furnace avoiding expending a large amount of electric power and scatter and disappear a large amount of waste heat energies again at present.

The furnace binding of traditional natural cooling type graphitizing furnace as shown in Figure 1, wherein the process of cooling of graphitizing furnace relies on the naturally cooling between exterior wall outside and ambient air, therefore its speed of cooling reaches more than 8～10 days very slow, cooling time, has greatly affected the production capacity of production cycle and production line.Meanwhile, between energising heating period and will be by the lost a large amount of heat energy of furnace body outer wall face between soak.

Therefore, be necessary to seek design and the structure thereof of the brand-new graphitizing furnace type of cooling, significantly shorten cooling time to reach, improve the object of production line production capacity.

Utility model content

The purpose of this utility model is the weak point for overcoming prior art, a kind of novel graphite stove of energy-saving high yield is proposed, creatively adopt the special heat-obtaining mode that air cooling apparatus is set in ultrahigh-temperature body of heater inside, transform the type of cooling of graphitizing furnace as pressure cooling structure by present situation naturally cooling, and detachable warming plate is set to reduce current consumption at furnace body outer wall face.

Specific descriptions of the present utility model are: a kind of novel graphite stove of energy-saving high yield, graphitizing furnace 7 is rectangular parallelepiped furnace type structure, ecto-entad is respectively exterior wall 1, thermal insulation layer 2 and combustion chamber 3, it is characterized in that, described novel graphite stove is integrated with force air refrigerating unit, formed by one or more groups high temperature modification spiral coil cooling tube and the structure of attaching troops to a unit, wherein in spiral coil cooling tube 6, be embedded in thermal insulation layer 2 inside in graphitizing furnace 7, the inner-wall surface of close exterior wall 1 is also in a row arranged along short transverse, wherein the blast inlet of spiral coil cooling tube 6 is connected with air intake collector 8, the air outlet of spiral coil cooling tube 6 is connected with air-out collector 4, the outside wall surface outside of the exterior wall 1 of graphitizing furnace 7 is pasted with detachable thermal insulation layer 10.Near the vertical row of spiral coil cooling tube 6 each side exterior wall is 1 row or 2 rows, adopts fork row structural arrangement in the time being 2 row.The upper space of the furnace bottom clay brick 11 of graphitizing furnace 7 also can arrange furnace bottom spiral coil cooling tube 12 where necessary, and row is 1 row or 2 rows, adopts fork row structural arrangement in the time being 2 row.Described spiral coil cooling tube 6 adopts stainless pipe structure.The inside heat transferring medium of spiral coil cooling tube 6 is air or nitrogen.Detachable thermal insulation layer 10 adopts aluminosilicate warming plate or polyurethane heat-insulation plate structure.The furnace roof of graphitizing furnace 7 is in the time adopting cover plate, and the outside wall surface outside of cover plate upside is pasted with detachable thermal insulation layer 10.

Feature of the present utility model and beneficial effect: adopt ambient air naturally cooling mode to change into original graphitizing furnace and adopt the pressure type of cooling, thereby significantly shorten cooling time, the faster production cycle, improve unit production capacity, expectation can shorten to cooling time about 3～5 days, thereby can make the greying production cycle shorten to 10～12 days by 15～20 days, can improve production capacity 50%～70%.Body of heater exterior wall external application thermal insulation layer, also lays thermal insulation layer at furnace top cover if desired, can during electrically heated, realize and reduce temperature in current consumption, raising stove, keeps and improve temperature in stove between soak, during cooling significantly reduces heat loss; And adopt detachablely, in the time of pressure cooling system fault, the thermal insulation layer of during cooling dismantling, can ensure that body of heater is cooling to return to original naturally cooling mode, thereby not affect normal art production process and security thereof.The utility model belongs to the Important Techmical Progress with great-leap-forward meaning in greying products production field, has important energy-saving benefit and economic benefit.

Brief description of the drawings

Fig. 1 is the traditional graphitizing furnace structural representation that adopts ambient air naturally cooling mode.

Fig. 2 is the example structure vertical view schematic diagram of the novel graphite stove of the energy-saving high yield that adopts of the utility model.

Fig. 3 is the embodiment longitudinal cross-section schematic diagram of the novel graphite stove of the energy-saving high yield that adopts of the utility model.

In Fig. 1,2,3, each unit number and title are as follows.

Exterior wall 1, thermal insulation layer 2, combustion chamber 3, air-out collector 4, air-out house steward 5, spiral coil cooling tube 6, graphitizing furnace 7, air intake collector 8, furnace bottom ventilation slot 9, detachable thermal insulation layer 10, furnace bottom clay brick 11, furnace bottom spiral coil cooling tube 12, air-out A, air intake B.

Embodiment

The novel graphite stove of the energy-saving high yield the utility model proposes, by reference to the accompanying drawings and embodiment describe in detail.

Specific embodiment of the utility model is as follows: novel graphite stove 7 is rectangular parallelepiped furnace type structure, ecto-entad is respectively exterior wall 1, thermal insulation layer 2 and combustion chamber 3, novel graphite stove is integrated with force air refrigerating unit, formed by one or more groups high temperature modification spiral coil cooling tube and the structure of attaching troops to a unit, wherein in spiral coil cooling tube 6, be embedded in thermal insulation layer 2 inside in graphitizing furnace 7, the inner-wall surface of close exterior wall 1 is also in a row arranged along short transverse, wherein the blast inlet of spiral coil cooling tube 6 is connected with air intake collector 8, the air outlet of spiral coil cooling tube 6 is connected with air-out collector 4, the outside wall surface outside of the exterior wall 1 of graphitizing furnace 7 is pasted with detachable thermal insulation layer 10.Near the vertical row of spiral coil cooling tube 6 each side exterior wall is 2 rows, adopts fork row structural arrangement.The upper space of the furnace bottom clay brick 11 of graphitizing furnace 7 arranges furnace bottom spiral coil cooling tube 12, and row is 1 row or 2 rows, adopts fork row structural arrangement in the time being 2 row.Described spiral coil cooling tube 6 adopts stainless pipe structure.The inside heat transferring medium of spiral coil cooling tube 6 is air.Detachable thermal insulation layer 10 adopts aluminosilicate warming plate.The furnace roof of graphitizing furnace 7 is in the time adopting cover plate, and the outside wall surface outside of cover plate upside is pasted with detachable thermal insulation layer 10.

It should be noted that; the utility model proposes and adopt the design of high temperature cooling gas converting heat Pipe bundle structure and the detachable thermal insulation layer of the outer subsides of exterior wall; can there is different concrete implementing measures according to this design; for example take to bury in various cast, caliber, wall thickness and the pipe range combination etc. of spiral coil cooling tube tube bank, and the embodiment of other similar simple deformation all falls into protection domain of the present utility model.

Claims

1. the novel graphite stove of an energy-saving high yield, wherein graphitizing furnace (7) is rectangular parallelepiped furnace type structure, ecto-entad is respectively exterior wall (1), thermal insulation layer (2) and combustion chamber (3), it is characterized in that, described novel graphite stove is integrated with force air refrigerating unit, formed by one or more groups high temperature modification spiral coil cooling tube and the structure of attaching troops to a unit, wherein in spiral coil cooling tube (6), be embedded in thermal insulation layer (2) inside in graphitizing furnace (7), the inner-wall surface of close exterior wall (1) is also in a row arranged along short transverse, wherein the blast inlet of spiral coil cooling tube (6) is connected with air intake collector (8), the air outlet of spiral coil cooling tube (6) is connected with air-out collector (4), the outside wall surface outside of the exterior wall (1) of graphitizing furnace (7) is pasted with detachable thermal insulation layer (10).

2. the novel graphite stove of energy-saving high yield as claimed in claim 1, is characterized in that, near the vertical row of described spiral coil cooling tube (6) each side exterior wall is 1 row or 2 rows, adopts fork row structural arrangement in the time being 2 row.

3. the novel graphite stove of energy-saving high yield as claimed in claim 1, it is characterized in that, the upper space of the furnace bottom clay brick (11) of described graphitizing furnace (7) also can arrange furnace bottom spiral coil cooling tube (12) where necessary, and row is 1 row or 2 rows, adopts fork row structural arrangement in the time being 2 row.

4. the novel graphite stove of energy-saving high yield as claimed in claim 1, is characterized in that, described spiral coil cooling tube (6) adopts stainless pipe structure.

5. the novel graphite stove of energy-saving high yield as claimed in claim 1, is characterized in that, the inside heat transferring medium of described spiral coil cooling tube (6) is air or nitrogen.

6. the novel graphite stove of energy-saving high yield as claimed in claim 1, is characterized in that, described detachable thermal insulation layer (10) adopts aluminosilicate warming plate or polyurethane heat-insulation plate structure.

7. the novel graphite stove of energy-saving high yield as claimed in claim 1, is characterized in that, the furnace roof of described graphitizing furnace (7) is in the time adopting cover plate, and the outside wall surface outside of cover plate upside is pasted with detachable thermal insulation layer (10).