CN201129732Y - Calcine furnace bottom flue gas duct structure with cap electrode - Google Patents
Calcine furnace bottom flue gas duct structure with cap electrode Download PDFInfo
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- CN201129732Y CN201129732Y CNU2007200156918U CN200720015691U CN201129732Y CN 201129732 Y CN201129732 Y CN 201129732Y CN U2007200156918 U CNU2007200156918 U CN U2007200156918U CN 200720015691 U CN200720015691 U CN 200720015691U CN 201129732 Y CN201129732 Y CN 201129732Y
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- flue gas
- brick
- pier
- gas passage
- brick bed
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Abstract
The utility model discloses an electrode baking furnace with a cover in the production field of a graphite electrode, in particular to a furnace bottom flue channel structure of an electrode baking furnace with a cover. The utility model is achieved like this: a kang pier is arranged between a furnace bottom masonry body and a kang face brick, and the kang pier comprises an upper sectional kang pier brick and a lower sectional kang pier brick. Round sectional kang pier bricks form a calandria arrangement in a furnace bottom flue channel, thereby greatly reducing the local resistance loss of glue gas. Because the furnace types are all a running system which comprises a plurality of furnace chambers, the decreased value of the local resistance loss which are overlapped is very obvious. Because the size of sections of the kang pier bricks is reduced and through the calandria fuel gas channel structure, the flow area of the fuel gas in the channel is increased, and the loss of frictional resistance during the circulation process of the fuel gas is effectively reduced.
Description
Technical field
The utility model relates to the electrode baking with cover of graphite electrode production field, particularly relate to a kind of bottom flue gas passage structure of electrode calcination furnace with cover, in order to the drag losses that reduces bottom flue gas passage, improve that negative pressure distributes in the electrode baking stove with cover, reduce furnace bottom passage refractory material consumption and accumulation of heat loss, reach the purpose of saving the electrode baking Fuel Consumption.
Background technology
Bottom flue gas passage is one of important structure of electrode baking with cover, and its effect is space, hopper grid brick wall and a middle flue under gas well, bell, forms electrode baking inner flue gas of the stove running system with cover.Under the suction function that the stove smoke evacuation system is provided, high-temperature flue gas is walked in a plurality of furnace chambers by these passages, by certain process curve, finishes processes such as insulation, heating, preheating, enters the exit flue of stove from the end furnace chamber of flame system.
Existing electrode baking with cover at the furnace bottom of each furnace chamber, all adopts a plurality of a heatable brick bed piers to make somebody a mere figurehead a heatable brick bed face, makes this space become the part of exhaust gases passes.These a heatable brick bed piers are that employing standard clay brick is built by laying bricks or stones, and its cross section generally is 230 * 230mm square, highly generally between 476mm～680mm.This bottom flue gas passage structure has the shortcoming of following several respects: 1, because the arrangement mode of this rectangle a heatable brick bed pier multiple lines and multiple rows, make flue gas in flow process, to repeatedly experience the cross section of shrinking and enlarging, caused very big local resistance, the drag losses after a plurality of furnace chamber series connection is very considerable; 2, this relatively large sectional dimension has occupied bigger aisle spare, can cause that also the drag losses of bottom flue gas passage increases; 3, a heatable brick bed pier structure of this solid has increased the weight of bottom refractory, has also just increased the accumulation of heat loss of furnace bottom simultaneously; 4, because this a heatable brick bed pier is to be built by laying bricks or stones and formed by multilayer, the combination of polylith standard type refractory fireclay block, therefore brickwork joint is many, and bulk strength is poor, and meeting produces dislocation or topples in running, can make the checker brick of hopper and a heatable brick bed face structure occur subsiding when serious, directly reduce stove service life; 5, as previously mentioned, because the flue gas circulating resistance is big, must improve the furnace maneuver negative pressure, this has just caused stove cold wind soakage everywhere to increase, and has seriously reduced the technological operation performance of electrode baking with cover; 6, the cold wind soakage that is caused by high negative pressure increases, and can cause the practical operation temperature departure process curve of stove, influence the product roasting quality, can cause the thermal efficiency of stove obviously to reduce simultaneously, the energy consumption increase.
The utility model content
The utility model be exactly to provide in order to solve the problems of the technologies described above a kind of bottom flue gas passage structure of electrode calcination furnace with cover, purpose be solve that electrode baking bottom flue gas passage drag losses with cover is big, aisle spare is little, a heatable brick bed pier amount of stored heat is big, structural strength is poor, operate greatly that the suction cold wind that negative pressure causes is serious, the obvious technical problem such as reduction of the thermal efficiency.
In order to solve the problems of the technologies described above, the utility model is achieved in that bottom flue gas passage structure of electrode calcination furnace with cover, is provided with a heatable brick bed pier between masonry of well and a heatable brick bed face brick, and a heatable brick bed pier is made of with following section a heatable brick bed pier brick last section a heatable brick bed pier brick.
The described section a heatable brick bed pier brick top of going up is provided with the holder cap.
Cut the holder cap upper surface coating refractory mud of a heatable brick bed pier brick on described.
Described holder cap upper surface is solid plane; The shape of holder cap is that rectangle, its thickness are that 80～300mm, size dimension are 150～400mm.
In the upward section a heatable brick bed pier brick of described holder cap below is hollow body, is provided with boss in the last bottom of cutting a heatable brick bed pier brick.
The height of described boss is 1～50mm.
Described cross section of going up section a heatable brick bed pier brick hollow body is circle or oval ring.
The sectional dimension of described hollow body is that 150～400mm, height dimension are 200～700mm.
The bottom of described following section a heatable brick bed pier brick is provided with base.
Described base is the Filled Rectangle body, and base lower surface is the plane, and the thickness of base is 65～200mm, and size dimension is 150～500mm.
Be hollow body above the base of described following section a heatable brick bed pier brick, under cut a heatable brick bed pier brick top and be provided with groove, the degree of depth of groove is 1～50mm, groove and boss coupling.
Be annular or oval ring for the cross section of hollow body above the base of described following section a heatable brick bed pier brick.
The hollow body sectional dimension of described following section a heatable brick bed pier brick is that 150～400mm, height dimension are 200～700mm.
Described going up between section a heatable brick bed pier brick and following section a heatable brick bed pier brick is provided with high temperature clay or high-temperature agglomerant.
A kind of bottom flue gas passage structure of electrode calcination furnace with cover of the utility model has the following advantages:
1, by a heatable brick bed pier brick of circular cross-section, the calandria that forms in bottom flue gas passage is arranged, and will reduce the local resistance loss of flue gas greatly.Because all being a plurality of furnace chambers, the described type of furnace forms movement system, so the local resistance loss minimizing value that stacks up will be fairly obvious.
2, because described a heatable brick bed pier brick sectional dimension reduces, add the flue gas passage structure of calandria, the flue gas circulation area in the passage is increased, also will effectively reduce the fricting resistance loss in the flue gas process of circulation.
3, comprehensive above-mentioned various drag losseses reduce effect, the operation negative pressure of whole roaster with cover is descended significantly, will bring that stove sucks that cold blast rate reduces significantly, a series of benefits such as the load of furnace thermal efficiency raisings, exhaust gas volumn minimizing, induced-draft fan and cleaning system reduces, effectively corrects departure degree for process curve, raising electrode baking quality.
4, because the circular cross-section hollow-core construction that a heatable brick bed pier brick adopts, reduced the refractory consumption rate amount of a heatable brick bed pier brick, correspondingly also can reduce its amount of stored heat, meet the energy-saving and emission-reduction principle.
5, because a heatable brick bed pier brick has the ad hoc occlusion structure that cuts up and down, adopt the very strong bonding and sintering of high temperature clay of cohesive force simultaneously, so its structural strength is good, guarantees that hopper and a heatable brick bed face structure remain intact in long-time running.
6, economical and practical, be convenient to implement.
In order to strengthen its support effects, on cut a heatable brick bed pier brick upper surface have the holder cap, it then is in order to strengthen the stability that it is laid that following section a heatable brick bed pier brick has understructure.Such bottom flue gas passage structure makes that flue gas is to be flowing in the comb resistance channel in this section, and the existing relatively type of flow of repeatedly shrinking and enlarging will effectively reduce its local resistance.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the vertical view of Fig. 1.
Among the figure, 1, a heatable brick bed face brick; 2, cut a heatable brick bed pier brick on; 3, cut a heatable brick bed pier brick down; 4, high temperature clay; 5, masonry of well; 6, holder cap; 7, base.
The specific embodiment
Below embodiment of the present utility model is described in detail in conjunction with the accompanying drawings, but protection domain of the present utility model is not limit by embodiment.The arrow indication is the flue gas circulating direction.
The utility model bottom flue gas passage structure of electrode calcination furnace with cover as shown in the figure, between masonry of well 5 and a heatable brick bed face brick 1, be provided with a heatable brick bed pier, the a heatable brick bed pier is made of with following section a heatable brick bed pier brick 3 last section a heatable brick bed pier brick 2, is provided with holder cap 6 at last a heatable brick bed pier brick 2 tops of cutting, and holder cap 6 upper surfaces are solid planes; Coat refractory wass at the last holder cap upper surface that cuts a heatable brick bed pier brick 2; The shape of holder cap 6 is that rectangle, its thickness are that 80～300mm, size dimension are 150～400mm, and going up of holder cap 6 belows cuts in a heatable brick bed pier brick to be hollow body, to be provided with boss in the last bottom of cutting a heatable brick bed pier brick 2 that the height of boss is 1～50mm.
It is above-mentioned that to go up the cross section of cutting a heatable brick bed pier brick 2 hollow bodies be circle or oval ring, on cut a heatable brick bed pier brick 2 hollow bodies sectional dimension be that 150～400mm, height dimension are 200～700mm.The bottom of cutting a heatable brick bed pier brick 3 down is provided with base 7, and base 7 is Filled Rectangle bodies, and base lower surface is the plane, and the thickness of base 7 is 65～200mm, and size dimension is 150～500mm.Be hollow body above cutting the base 7 of a heatable brick bed pier brick 3 down, under cut a heatable brick bed pier brick top and be provided with groove, the degree of depth of groove is 1～50mm, groove mates with boss, and boss is inserted in the groove, the surface of boss and groove is provided with high temperature clay 4 or high-temperature agglomerant.Cutting down above the base 7 of a heatable brick bed pier brick 3 to the cross section of hollow body is annular or oval ring.The hollow body sectional dimension of cutting a heatable brick bed pier brick 3 down is that 150～400mm, height dimension are 200～700mm.
Claims (14)
1, bottom flue gas passage structure of electrode calcination furnace with cover is characterized in that being provided with a heatable brick bed pier between masonry of well and a heatable brick bed face brick, and a heatable brick bed pier is made of with following section a heatable brick bed pier brick last section a heatable brick bed pier brick.
2, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 1 is characterized in that the described section a heatable brick bed pier brick top of going up is provided with the holder cap.
3, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 2 is characterized in that the described holder cap upper surface coating refractory mud that cuts a heatable brick bed pier brick (2) of going up.
4, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 2 is characterized in that described holder cap upper surface is solid plane; The shape of holder cap is that rectangle, its thickness are that 80～300mm, size dimension are 150～400mm.
5, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 2 is characterized in that going up of described holder cap below cut in a heatable brick bed pier brick and be hollow body, be provided with boss in the bottom of last section a heatable brick bed pier brick.
6, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 5, the height that it is characterized in that described boss is 1～50mm.
7, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 2 is characterized in that described cross section of going up section a heatable brick bed pier brick hollow body is circle or oval ring.
8, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 7, the sectional dimension that it is characterized in that described hollow body are that 150～400mm, height dimension are 200～700mm.
9, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 1 is characterized in that the bottom of described following section a heatable brick bed pier brick is provided with base.
10, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 9 is characterized in that described base is the Filled Rectangle body, and base lower surface is the plane, and the thickness of base is 65～200mm, and size dimension is 150～500mm.
11, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 9, it is characterized in that being above the base of described following section a heatable brick bed pier brick hollow body, under cut a heatable brick bed pier brick top and be provided with groove, the degree of depth of groove is 1～50mm, groove and boss coupling.
12, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 11 is characterized in that above the base of described following section a heatable brick bed pier brick for the cross section of hollow body being annular or oval ring.
13, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 12, the hollow body sectional dimension that it is characterized in that following section a heatable brick bed pier brick are that 150～400mm, height dimension are 200～700mm.
14, bottom flue gas passage structure of electrode calcination furnace with cover according to claim 1 is characterized in that being provided with high temperature clay or high-temperature agglomerant between section a heatable brick bed pier brick and following section a heatable brick bed pier brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200156918U CN201129732Y (en) | 2007-11-06 | 2007-11-06 | Calcine furnace bottom flue gas duct structure with cap electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200156918U CN201129732Y (en) | 2007-11-06 | 2007-11-06 | Calcine furnace bottom flue gas duct structure with cap electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129732Y true CN201129732Y (en) | 2008-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200156918U Expired - Lifetime CN201129732Y (en) | 2007-11-06 | 2007-11-06 | Calcine furnace bottom flue gas duct structure with cap electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129732Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398259B (en) * | 2007-09-29 | 2010-09-01 | 沈阳铝镁设计研究院 | Bottom flue gas passage structure of electrode calcination furnace with cap |
| CN108278898A (en) * | 2018-03-20 | 2018-07-13 | 中铝国际工程股份有限公司 | A kind of open type cathode baking furnace furnace bottom |
-
2007
- 2007-11-06 CN CNU2007200156918U patent/CN201129732Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398259B (en) * | 2007-09-29 | 2010-09-01 | 沈阳铝镁设计研究院 | Bottom flue gas passage structure of electrode calcination furnace with cap |
| CN108278898A (en) * | 2018-03-20 | 2018-07-13 | 中铝国际工程股份有限公司 | A kind of open type cathode baking furnace furnace bottom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENYANG ALUMINUM + MAGNESIUM ENGINEERING + RESEAR Free format text: FORMER NAME: SHENYANG ALUMINIUM AND MAGNESIUM DESIGN INST. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 110001 Heping Street, Heping District, Liaoning, Shenyang, No. 184 Patentee after: Shenyang Aluminum & Magnesium Engineering & Research Institute Co., Ltd. Address before: 110001 Heping Street, Heping District, Liaoning, Shenyang, No. 184 Patentee before: Shenyang Aluminium and Magnesium Design Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081008 |