CN101571353A - Gas well structure for electrode roasting furnace - Google Patents
Gas well structure for electrode roasting furnace Download PDFInfo
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- CN101571353A CN101571353A CNA2008100112266A CN200810011226A CN101571353A CN 101571353 A CN101571353 A CN 101571353A CN A2008100112266 A CNA2008100112266 A CN A2008100112266A CN 200810011226 A CN200810011226 A CN 200810011226A CN 101571353 A CN101571353 A CN 101571353A
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- gas well
- roasting furnace
- trapezoidal
- electrode roasting
- well structure
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Abstract
The invention discloses an electrode roasting furnace in the field of graphite electrode production, in particular to a gas well structure for an electrode roasting furnace. The gas well structure is characterized in that a gas well building body is built by gas well shaped bricks, a gas well mouth is arranged at the top of the gas well and a combustion-supporting air inlet opening is arranged at the upper part of the gas well. The gas well has good integrity; because a plurality of dilatation joint structures are arranged in the gas well building body, the gas well building body has good swelling stress absorption property; the gas well ensures the reliable deformation resistance when being taken as the combustion space and sufficient combustion-supporting air enters during the fuel combustion to achieve the purpose of complete combustion and improves the utilization ratio of fuel and reduces the energy consumption; the gas well keeps the cross section basically unchanged, is favorable for keeping the reasonable distribution of the negative pressure in the flame system and the smooth smoke flowing and effectively ensures the compliance between the furnace temperature distribution and the baking curve and the quality of the baked products; and the gas well can effectively ensure the capability of the main smoke extraction system to provide the negative pressure to the electrode roasting furnace.
Description
Technical field
The present invention relates to the electrode baking of graphite electrode production field, particularly relate to a kind of gas well structure for electrode roasting furnace, gas well structure for electrode roasting furnace is unreasonable in order to solve, intensity difference, yielding, at high temperature collapse, increase electrode baking flow of flue gas drag losses easily, cause electrode baking to enter the problem of overhaul in advance.
Background technology
Gas well is an important structure of forming the electrode baking furnace chamber, combustion space as heated oven chamber, it is to bear the position of high local temperature in the electrode baking operation process, as the main thoroughfare of flow of flue gas in the electrode baking flame system, it also will stand the high speed of high-temperature flue gas and wash away simultaneously.Therefore, gas well structure for electrode roasting furnace intensity is very important for technological operation and stove service life.
Existing electrode baking gas well, just on its arch position, just design has adopted the simple special shaped brick of a small amount of profile to build by laying bricks or stones, attempts to rely on the domes of each gas well to resist the swelling stress that hopper at high temperature produces.The major defect of this structure is: 1, because too simple, the set gas well arch action of the gas well special form brick structure that adopted is small-sized, key brick thickness is too thin, very easily fracture under the stress effect, therefore the resistant function of the extruding force that hopper is transmitted is little, and the damage of electrode baking all is from gas well generally speaking; 2, be general shaped brick with the brick that cooperates that the arch brick is formed gas well jointly, one is subjected to extrapolability, and the gas well masonry will gross distortion, and the flue gas circulation area is obviously diminished, and becomes " bottleneck " of exhaust gases passes in the whole flame system; 3, in order to guarantee that the fuel that the furnace chamber heating time infeeds gas well top can fully burn, position, middle and upper part at gas well is provided with the air intake that is connected with boiler face, as the combustion air accessory channel, the gas well masonry is in case distortion, at first just have influence on the unimpeded of this passage, make combustion air enter the combustion space smoothly, the fuel that causes infeeding gas well can not fully burn; 4, the gas well distortion at first is reflected on the gas well mouth, generally the brickwork joint cracking appears in the gas well mouth special form brick after the distortion, arch upward in the part, causing the system end to be laid as the gas well cover plate of system's insulating measure can not be tight fully, under the smoke evacuation system suction function, to have a strong impact on the smoke evacuation ability of the total smoke evacuation system of stove from gas well cover plate a large amount of cold air that bleeds.
Summary of the invention
The present invention be exactly to provide in order to solve the problems of the technologies described above a kind of gas well structure for electrode roasting furnace, purpose be solve that gas well structural strength gas well distortion, cross section poor and that cause thus diminish, flow of flue gas is obstructed in the flame system, gas well mouth cracking arches upward, the flame system barrier means is malfunctioning, the smoke evacuation system negative pressure not enough, the combustion air passage stops up, infeeding fuel in the stove can not completing combustion, the problem that causes energy consumption to increase.
In order to solve the problems of the technologies described above, the present invention is achieved in that a kind of gas well structure for electrode roasting furnace, be made of following structure: the gas well masonry is built by laying bricks or stones by the gas well special form brick and is formed, and the top of gas well is provided with the gas well mouth, is provided with the combustion air intake on the top of gas well.
Described gas well masonry is by gas well material line of demarcation separated into two parts, and the used gas well special form brick of the gas well masonry on top is more high temperature resistant than the used gas well special form brick of the gas well masonry of lower part.
One end of described gas well special form brick is provided with trapezoidal plug, and the other end is provided with trapezoidal socket, and upper surface is provided with the rim of the mouth, lower surface is provided with female mouthful.
Described female mouthful of cross sectional shape is semicircle or trapezoidal, and its altitude range is 3～60mm.
Described female mouthful of quantitative range is 1～9.
Described rim of the mouth cross sectional shape is semicircle or trapezoidal, and its altitude range is 3～60mm.
Described rim of the mouth quantitative range is 1～9.
The boss height of described trapezoidal plug and trapezoidal socket and depth of groove size range are 5～100mm.
The center line angular range of the trapezoidal side of described trapezoidal plug and trapezoidal socket and brick is 1～90 °.
Described gas well mouth is to be built by laying bricks or stones by gas well mouth special form brick.
The gas well mouth that described gas well mouth special form brick is built by laying bricks or stones is provided with the spill shell of gas well cover plate, and the depth bounds of shell is 5～200mm.
Described combustion air intake quantitative range is that 1～10, its cross sectional shape are rectangle, circle or polygon, and its diameter or size dimension scope are 20～200mm.
Every layer of masonry that described gas well special form brick is built by laying bricks or stones is provided with dilatation joint.
The above gas well special form brick in described gas well material line of demarcation has only an end to be provided with trapezoidal plug or trapezoidal socket, and trapezoidal plug or trapezoidal socket are at right angles arranged.
All interior with the being located at cross wall air duct of described combustion air intake is connected.
The present invention has the following advantages:
1, because gas well structure of the present invention is to adopt the combination of gas well special form brick to build by laying bricks or stones to form, so gas well has good whole.
2, many places dilatation joint structure is set in the gas well masonry, has guaranteed that the gas well masonry has good absorption swelling stress performance.
3, gas well top comprises that gas well mouth special form brick used the heat-resisting quantity can better material earlier, has reliable non-deformability in the time of can guaranteeing it as the combustion space.
4, material and structural improvement, can make the combustion air intake and the interior air duct of cross wall that are provided with in the gas well can not produce big distortion, have enough combustion airs to enter in the time of can guaranteeing fuel combustion, reach completing combustion, improve fuel utilization rate, reduced energy consumption.
5, gas well structure of the present invention, can effectively resist external force effect from each side, maintenance gas well cross section is constant substantially, helps keeping distribution rationally of the interior negative pressure of flame system and flow of flue gas unimpeded, guarantees that effectively furnace distributes and the accordance and the roasting product quality of roasting curve.
6, can make the gas well mouth keep profile preferably for a long time, help the isolated sealing at place, flame system end, can guarantee effectively that total smoke evacuation system provides the ability of negative pressure to electrode baking.
Description of drawings
Fig. 1 is the elevational schematic view of gas well structure for electrode roasting furnace of the present invention.
Fig. 2 is that the odd-level of gas well structure for electrode roasting furnace of the present invention is built schematic diagram by laying bricks or stones.
Fig. 3 is that the even level of gas well structure for electrode roasting furnace of the present invention is built schematic diagram by laying bricks or stones.
Fig. 4 is that the combustion air intake of gas well structure for electrode roasting furnace of the present invention is built schematic diagram by laying bricks or stones.
Fig. 5 is the facade structures schematic diagram of gas well special form brick of the present invention.
Fig. 6 is the planar structure schematic diagram of gas well special form brick of the present invention.
Among the figure, 1, gas well; 2, gas well mouth; 3, combustion air intake; 4, dilatation joint; 5, gas well special form brick; 6, gas well material line of demarcation; 7, gas well mouth special form brick; 8, gas well cover plate spill shell; 9, air duct; 10, trapezoidal plug; 11, trapezoidal socket; 12, rim of the mouth; 13, female mouthful.
The specific embodiment
Below the invention will be further described for the description by the specific embodiment, but protection scope of the present invention is not limit by embodiment.Those skilled in the art can make various modifications or improvement according to basic thought of the present invention, but only otherwise break away from basic thought of the present invention, all within the scope of the present invention.
Shown in Fig. 1-6, a kind of gas well structure for electrode roasting furnace of the present invention, be arranged on an end of each furnace chamber, with hopper, the a heatable brick bed face, a heatable brick bed pier etc. is together formed furnace chamber, the electrode baking gas well is made of following structure: the gas well masonry of gas well 1 is built by laying bricks or stones by gas well special form brick 5 and is formed, the top of gas well 1 is provided with gas well mouth 2, be provided with combustion air intake 3 on the top of gas well 1, combustion air intake 3 is by cross wall one side, all interior with the being located at cross wall air duct 9 of combustion air intake 3 is connected, the quantitative range of combustion air intake 3 is 1～10, its cross sectional shape is a rectangle, circle or polygon, its diameter or size dimension scope are 20～200mm; The gas well masonry is by gas well material line of demarcation 6 separated into two parts, the used gas well special form brick 5 of the gas well masonry on top is more high temperature resistant than the used gas well special form brick of the gas well masonry of lower part 5, one end of gas well special form brick 5 is provided with trapezoidal plug 10, the other end is provided with trapezoidal socket 11, upper surface is provided with rim of the mouth 12, lower surface is provided with female mouthful 13, female mouthful 13 cross sectional shapes are semicircle or trapezoidal, its altitude range is 3～60mm, female mouthful 13 quantitative ranges are 1～9, rim of the mouth 12 cross sectional shapes are semicircle or trapezoidal, its altitude range is 3～60mm, and rim of the mouth 12 quantitative ranges are 1～9, and rim of the mouth 12 is complementary with female mouthful 13; The boss height of trapezoidal plug 10 and trapezoidal socket 11 and depth of groove size range are 5～100mm, and the trapezoidal side of trapezoidal plug 10 and trapezoidal socket 11 and the center line angular range of brick are 1～90 °; The gas well special form brick 5 of gas well material line of demarcation more than 6 has only an end to be provided with trapezoidal plug 10 or trapezoidal socket 11, and trapezoidal plug 10 or trapezoidal socket 11 are at right angles arranged; Gas well mouth 2 is to be built by laying bricks or stones by gas well mouth special form brick 7; gas well mouth special form brick 7 one ends are provided with trapezoidal plug 10; the other end is provided with trapezoidal socket 11; upper surface is provided with rim of the mouth 12, lower surface is provided with female mouthful 13; the gas well mouth 2 that gas well mouth special form brick 7 is built by laying bricks or stones is provided with gas well cover plate spill shell 8; to guarantee the sealing after the gas well lid is laid, the depth bounds of shell is 5～200mm.Every layer of masonry that gas well special form brick 5 is built by laying bricks or stones is provided with dilatation joint 4, the thermal expansion force that on gas well length, occurs when eliminating operation, and adopt refractory wass to build by laying bricks or stones by brickwork joint thickness.
During enforcement, gas well is from the furnace bottom upper surface, adopts the gas well special form brick to build by laying bricks or stones, female mouthful of gas well special form brick lower surface rim of the mouth interlock with its lower floor's brick when building by laying bricks or stones, mother's mouth interlock of the rim of the mouth of gas well special form brick upper surface and its upper strata brick; The trapezoidal plug of gas well special form brick one end inserts in the trapezoidal socket of adjacent bricks, the socket of the other end then with the plug interlock of adjacent bricks, every layer of gas well masonry interlayer conversion gas well special form brick aligning method, direction as the trapezoidal plug of ground floor is opposite with the direction of the trapezoidal plug of the second layer, to avoid neighbouring brick interlayer the straight joint phenomenon to occur, should keep the gas well hole on every layer of masonry to be in same position; When gas well is built gas well material line of demarcation by laying bricks or stones, changing more resistant to elevated temperatures gas well special form brick into builds by laying bricks or stones, when building by laying bricks or stones to the gas well top, using gas well mouth special form brick instead builds by laying bricks or stones, gas well mouth after the combination has the spill shell of laying the gas well cover plate, gas well masonry its underpart is connected with middle quirk, the bottom flue gas passage of its downstream furnace chamber, and cuts off mutually with the bottom flue gas passage of this furnace chamber.
Claims (16)
1, a kind of gas well structure for electrode roasting furnace is characterized in that being made of following structure: the gas well masonry is built by laying bricks or stones by gas well special form brick (5) and is formed, and the top of gas well (1) is provided with gas well mouth (2), is provided with combustion air intake (3) on the top of gas well (1).
2, gas well structure for electrode roasting furnace according to claim 1, it is characterized in that described gas well masonry by gas well material line of demarcation (6) separated into two parts, the used gas well special form brick of the gas well masonry on top (5) is more high temperature resistant than the used gas well special form brick of the gas well masonry of lower part (5).
3, gas well structure for electrode roasting furnace according to claim 2, an end that it is characterized in that described gas well special form brick (5) is provided with trapezoidal plug (10), the other end is provided with trapezoidal socket (11), and upper surface is provided with rim of the mouth (12), lower surface is provided with female mouthful (13).
4, gas well structure for electrode roasting furnace according to claim 3 is characterized in that described female mouthful of (13) cross sectional shape is semicircle or trapezoidal, and its altitude range is 3～60mm.
5,, it is characterized in that described female mouthful of (13) quantitative range is 1～9 according to claim 3 or 4 described gas well structure for electrode roasting furnace.
6, gas well structure for electrode roasting furnace according to claim 3 is characterized in that described rim of the mouth (12) cross sectional shape is semicircle or trapezoidal, and its altitude range is 3～60mm.
7,, it is characterized in that described rim of the mouth (12) quantitative range is 1～9 according to claim 3 or 6 described gas well structure for electrode roasting furnace.
8, gas well structure for electrode roasting furnace according to claim 3 is characterized in that the boss height of described trapezoidal plug (10) and trapezoidal socket (11) and depth of groove size range are 5～100mm.
9,, it is characterized in that the trapezoidal side of described trapezoidal plug (10) and trapezoidal socket (11) and the center line angular range of brick are 1～90 ° according to claim 3 or 8 described a kind of gas well structure for electrode roasting furnace.
10, gas well structure for electrode roasting furnace according to claim 1 is characterized in that described gas well mouth (2) is to be built by laying bricks or stones by gas well mouth special form brick (7).
11, gas well structure for electrode roasting furnace according to claim 10 is characterized in that the gas well mouth (2) that described gas well mouth special form brick (7) is built by laying bricks or stones is provided with gas well cover plate spill shell (8), and the depth bounds of gas well cover plate spill shell (8) is 5～200mm.
12, gas well structure for electrode roasting furnace according to claim 1, the quantitative range that it is characterized in that described combustion air intake (3) is 1～10.
13, according to claim 1 or 12 described gas well structure for electrode roasting furnace, the cross sectional shape that it is characterized in that described combustion air intake (3) is rectangle, circle or polygon, and the diameter of combustion air intake (3) or size dimension scope are 20～200mm.
14, gas well structure for electrode roasting furnace according to claim 1 is characterized in that every layer of masonry that described gas well special form brick (5) is built by laying bricks or stones is provided with dilatation joint (4).
15, gas well structure for electrode roasting furnace according to claim 2, it is characterized in that the above gas well special form brick (5) in described gas well material line of demarcation (6) has only an end to be provided with trapezoidal plug (10) or trapezoidal socket (11), trapezoidal plug (10) or trapezoidal socket (11) are at right angles arranged.
16, gas well structure for electrode roasting furnace according to claim 1 is characterized in that all interior with the being located at cross wall air duct of described combustion air intake (3) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100112266A CN101571353A (en) | 2008-04-29 | 2008-04-29 | Gas well structure for electrode roasting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100112266A CN101571353A (en) | 2008-04-29 | 2008-04-29 | Gas well structure for electrode roasting furnace |
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| Publication Number | Publication Date |
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| CN101571353A true CN101571353A (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100112266A Pending CN101571353A (en) | 2008-04-29 | 2008-04-29 | Gas well structure for electrode roasting furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538467A (en) * | 2010-12-16 | 2012-07-04 | 贵阳铝镁设计研究院有限公司 | Method for manufacturing gas well of cathode baking furnace and structure thereof |
| CN114113842A (en) * | 2021-11-22 | 2022-03-01 | 国网湖北省电力有限公司直流运检公司 | Flexible direct-current transmission converter valve submodule operation test platform |
-
2008
- 2008-04-29 CN CNA2008100112266A patent/CN101571353A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538467A (en) * | 2010-12-16 | 2012-07-04 | 贵阳铝镁设计研究院有限公司 | Method for manufacturing gas well of cathode baking furnace and structure thereof |
| CN114113842A (en) * | 2021-11-22 | 2022-03-01 | 国网湖北省电力有限公司直流运检公司 | Flexible direct-current transmission converter valve submodule operation test platform |
| CN114113842B (en) * | 2021-11-22 | 2023-10-27 | 国网湖北省电力有限公司直流运检公司 | Flexible direct-current transmission converter valve submodule operation test platform |
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Open date: 20091104 |