CN214120066U - Detachable waste incinerator water-cooling furnace wall - Google Patents
Detachable waste incinerator water-cooling furnace wall Download PDFInfo
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- CN214120066U CN214120066U CN202023090987.0U CN202023090987U CN214120066U CN 214120066 U CN214120066 U CN 214120066U CN 202023090987 U CN202023090987 U CN 202023090987U CN 214120066 U CN214120066 U CN 214120066U
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Abstract
The utility model relates to an urban domestic waste burns the field, especially relates to a detachable waste incinerator water-cooling furnace wall. The lower part of the water wall tube in contact with the garbage adopts a detachable refractory brick to replace a conventionally designed refractory castable and refractory brick arrangement mode, and the main body comprises the water wall tube, a lower header, a metal sleeve, a refractory brick and a metal fixing piece. The metal sleeve is welded on the band steel of membrane wall tube, and resistant firebrick passes through the metal mounting to be fixed on the water-cooling wall, and the gap is filled with refractory material between resistant firebrick, and metal mounting is terminal to insert in the metal sleeve to this fixed resistant firebrick. The refractory brick with the structure is easy to disassemble, can adapt to different garbage heat values, has good heat conductivity, can effectively prevent coking of a hearth, and improves the boiler efficiency.
Description
Technical Field
The utility model relates to an urban domestic waste burns the field, especially relates to a detachable water-cooling furnace wall who is adapted to rubbish calorific value and changes.
Background
Along with the improvement of economic level and the popularization of garbage classification, the heat value of garbage rises year by year, and in order to adapt to the requirement of high-heat-value garbage combustion, a water-cooled furnace wall can be adopted to replace an air-cooled furnace wall to control the temperature of a hearth and solve the coking problem of the hearth. In order to prevent the water wall tube of the water cooling furnace wall from being corroded, conventionally, a refractory castable is laid on the surface of the water wall tube, and a SiC85 refractory brick is laid outside the castable on the lower part of the water wall tube, which is in contact with garbage, so that when the heat value of the garbage changes or the refractory brick is worn, the structure is difficult to disassemble, and the requirements of various operation working conditions cannot be flexibly met. Therefore, a more flexible structure is needed to be designed, when the heat value of the garbage changes or the refractory bricks are worn, the structure of the part can be disassembled, the temperature of the hearth is ensured, and the hearth is prevented from coking.
The utility model relates to a detachable waste incinerator water-cooling furnace wall adopts detachable resistant firebrick to replace the refractory castable material of conventional design and the arrangement of resistant firebrick in the water wall pipe lower part with rubbish contact, and the main part includes water wall pipe, lower header, metal casing, resistant firebrick and metal mounting. The metal sleeve is welded on the band steel of membrane wall tube, and resistant firebrick passes through the metal mounting to be fixed on the water-cooling wall, and the gap is filled with refractory material between resistant firebrick, and metal mounting is terminal to insert in the metal sleeve to this fixed resistant firebrick. The refractory brick with the structure is easy to disassemble, can adapt to different garbage heat values, has good heat-conducting property and can effectively prevent coking of a hearth.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a detachable water-cooled furnace wall of a garbage incinerator, wherein the lower part of a water-cooled wall tube in contact with garbage adopts detachable refractory bricks to replace conventionally designed refractory castable and refractory bricks, and the water-cooled wall tube comprises a water-cooled wall tube, a lower header, a metal sleeve, refractory bricks and a metal fixing piece, and is a membrane type water-cooled wall; the lower header is positioned at the lower part of the water wall tube and is connected with the water wall tube by welding; the metal sleeve is welded on the flat steel of the membrane type water wall tube; the refractory brick part is fixed on the water-cooled wall through a metal fixing piece; the tail end of the metal fixing piece is inserted into the metal sleeve. The refractory bricks are convenient to disassemble, and the quantity of the refractory bricks can be increased or decreased according to the change of the heat value of the garbage.
When the heat value of the garbage is low, the temperature of the combustion chamber is low, and excessive heat absorption of the water-cooled wall is avoided by increasing the number of refractory bricks, so that the temperature of the hearth is ensured. When the heat value of the garbage is high, the temperature of the combustion chamber is higher, and the heat absorption strength of the water-cooled wall is increased by reducing the number of refractory bricks, so that the temperature of the hearth is ensured. The proper furnace temperature is beneficial to reducing the emission of harmful pollutants such as dioxin and the like; the furnace temperature is stabilized, so that the steam parameters are improved, the steam quality and the steam yield are improved, and the resource utilization of the garbage is really realized.
Based on the above conception, the utility model has the advantages of low preparation cost, being beneficial to the site construction of boiler pipelines, and the like; the problems of high-temperature corrosion of a water-cooled wall, coking of a hearth and the like can be effectively solved, the gas temperature can be reduced, the viscosity of fly ash is reduced, and the availability and the heat transfer efficiency of the boiler are improved; the refractory brick has high heat absorption coefficient, reduces secondary air supply amount, generates less flue gas amount, reduces the capacity requirement on flue gas treatment equipment, and can reduce the content of NOx in primary gas; the detachable structure of the refractory brick is helpful for reducing temperature fluctuation caused by garbage heat value change and ensuring the temperature of the hearth. Therefore, the detachable refractory bricks arranged outside the water-cooled wall can effectively protect the water-cooled wall and the furnace wall, prevent coking of the furnace hearth and improve the boiler efficiency.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the three-dimensional structure of the present invention.
FIG. 3 is a schematic view of the refractory brick construction.
In FIG. 1, 1 is a water wall tube, 2 is a header, 8 is a firebrick, and 4 is a firebrick receiving member.
In FIG. 2, 1 is a water wall tube, 7 is flat steel, 6 is a metal sleeve, 3 is a refractory brick (containing metal fixing), and 5 is a metal fixing.
In FIG. 3, 8 is a refractory brick, 3 is a refractory brick (containing metal fixture), and 5 is a metal fixture.
Detailed Description
In the figure 1, water from a steam drum enters a lower header (2) through a downcomer, the water in the lower header (2) is uniformly distributed into a water wall tube (1) to exchange heat with refractory bricks (8), the heat conductivity coefficient of the refractory bricks is high, the surface temperature is greatly reduced, the generation, adhesion and growth of hearth coking can be effectively inhibited, and a refractory brick bearing member (4) is connected with the water wall tube (1) through welding to play a role in supporting the refractory bricks (8).
In the figure 2, the water wall pipes (1) are membrane water walls, flat steel (7) is arranged between the water wall pipes (1), a metal sleeve (6) is welded on the flat steel (7), and a metal fixing piece (5) in the refractory brick (3) is inserted into the metal sleeve (6) to play a role in fixing the refractory brick (3). The connection mode of the refractory bricks (3) and the water-cooled wall is flexible and detachable, and when the garbage heat value changes, the quantity of the refractory bricks (3) can be increased and decreased conveniently, and the stable furnace temperature is maintained.
In figure 3, a metal fixing piece (5) is padded inside a refractory brick (containing metal fixing piece) (3), the metal fixing piece (5) is sleeved in a metal sleeve welded on a water wall flat steel to fix the refractory brick, and gaps among the refractory bricks are filled with refractory materials, so that the refractory brick is convenient to disassemble.
The utility model discloses a detachable waste incinerator water-cooling furnace wall, water wall pipe lower part adopt detachable resistant firebrick to replace the refractory castable material and the resistant firebrick arrangement mode of conventional design, protect the water-cooling wall, prevent the furnace coking. The lower header is positioned at the lower part of the water wall tube and is connected with the water wall tube by welding; the metal sleeve is welded on the flat steel of the membrane type water wall tube; the refractory brick part is fixed on the water-cooled wall through a metal fixing piece; the tail end of the metal fixing piece is inserted into the metal sleeve. The refractory bricks are convenient to disassemble, and the quantity of the refractory bricks can be increased or decreased according to the change of the heat value of the garbage.
Claims (1)
1. A detachable water-cooled furnace wall of a garbage incinerator is characterized in that the lower part of a water-cooled wall tube which is contacted with garbage adopts a detachable refractory brick arrangement structure, the water-cooled wall tube comprises the water-cooled wall tube, a lower header, a metal sleeve, refractory bricks and a metal fixing piece, and the water-cooled wall tube is a membrane water-cooled wall; the lower header is positioned at the lower part of the water wall tube and is connected with the water wall tube by welding; the metal sleeve is welded on the flat steel of the membrane type water wall tube; the refractory brick part is fixed on the water-cooled wall through a metal fixing piece; gaps among the refractory bricks are filled with refractory materials, and the tail ends of the metal fixing pieces are inserted into the metal sleeve; thereby fixing the refractory bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023090987.0U CN214120066U (en) | 2020-12-21 | 2020-12-21 | Detachable waste incinerator water-cooling furnace wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023090987.0U CN214120066U (en) | 2020-12-21 | 2020-12-21 | Detachable waste incinerator water-cooling furnace wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214120066U true CN214120066U (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202023090987.0U Active CN214120066U (en) | 2020-12-21 | 2020-12-21 | Detachable waste incinerator water-cooling furnace wall |
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| CN (1) | CN214120066U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321942A (en) * | 2021-12-29 | 2022-04-12 | 上海市政工程设计研究总院（集团）有限公司 | Incinerator |
-
2020
- 2020-12-21 CN CN202023090987.0U patent/CN214120066U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321942A (en) * | 2021-12-29 | 2022-04-12 | 上海市政工程设计研究总院（集团）有限公司 | Incinerator |
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