CN2809428Y - Coal gasified and fired boiler with postpositive burn-out chamber - Google Patents
Coal gasified and fired boiler with postpositive burn-out chamber Download PDFInfo
- Publication number
- CN2809428Y CN2809428Y CNU2005200206246U CN200520020624U CN2809428Y CN 2809428 Y CN2809428 Y CN 2809428Y CN U2005200206246 U CNU2005200206246 U CN U2005200206246U CN 200520020624 U CN200520020624 U CN 200520020624U CN 2809428 Y CN2809428 Y CN 2809428Y
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- coal
- chamber
- burn
- coal gasification
- postpositive
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Abstract
The utility model relates to a coal gasified and fired boiler with a postpositive burn-out chamber, which belongs to the coal-fired boiler equipment. A postpositive burn-out chamber is arranged between the back part of a preposition coal gasified burning chamber and a vertical boiler shell, the preposition coal gasified burning chamber and the postpositive burn-out chamber are divided by a partition wall, and a flame outlet and a secondary air spraying pipe set are arranged on the partition wall. A flue outlet is arranged on the lower side part of a matching part of the vertical pot shell and the postpositive burn-out chamber, and a smoke removing boiler arch with high temperature and a fly ash settling chamber are respectively arranged in the postpositive burn-out chamber and the vertical boiler shell. The utility model realizes the integration operation that raw coal is directly carried out the complete coal gasification after the coal gasification in a boiler chamber under the participation of secondary air. The utility model has the characteristics of simple structure, high combusting efficiency, low initial dust exhausting concentration, favorable environmental protection and strong applicability of coal kinds.
Description
Technical field
The utility model belongs to coal-burning boiler equipment.
Background technology
At present, the most Industrial Boilers of China all adopt the directly diffusing burning mode of raw coal to move, and coal burning has become the main source of China's environmental contaminants discharging, has caused seriously dust pollution and energy waste.Coal gasification is to be the technology of gas combustion (former) material with coal conversion under suitable condition, compare with the direct burning of coal, with the coal after-combustion of gasifying, both can improve efficiency of combustion, can significantly reduce the pollution to atmospheric environment again, be to solve China's city air pollution due to coal combustion best a kind of technology of serious problems day by day.But, for many cities, build town gas factory and coal gas system, on fund and technical be not that short-term can solve.Therefore, a kind of coal-burning boiler that raw coal can be gasified the direct burning in back in burner hearth of research and development is to solve serious day by day the pressing for of coal smoke type air environmental pollution under the present condition of China.
Summary of the invention
The purpose of this utility model is exactly problem and the defective that exists at above-mentioned prior art, utilize the advantage of coal gasification, and combustion, according to China market demand and ability to bear, design provides a kind of coal gasification combustion boiler that has rearmounted secondary furnace, reaches the purpose that reduces the coal-burning boiler initial dust-density emission significantly, alleviates environmental pollution, improves the thermal efficiency.
Basic design of the present utility model is, the rear portion of preposition coal gasification combustion chamber, and vertical shell between establish and adorn rearmounted secondary furnace, partition wall separates preposition coal gasification combustion chamber and rearmounted secondary furnace; Be provided with the flame export that preposition coal gasification combustion chamber is connected with rearmounted secondary furnace on the top of partition wall, secondary wind jet pipe configuration set is on the partition wall on flame export top; Outlet flue is opened on vertical shell and the rearmounted secondary furnace matching part housing following side, and rearmounted secondary furnace is communicated with vertical shell; High temperature smoke elimination chimney arch is arranged on upper back in the rearmounted secondary furnace; Below vertical shell inside, the flying dust expansion chamber is set, so far constitutes the coal gasification combustion boiler that has rearmounted secondary furnace.
The chamber structure that the utility model adopts preposition coal gasification combustion chamber and rearmounted secondary furnace to match, realized raw coal or industrial shaping coal are sent in the boiler furnace through directly carry out complete coal gasification combustion integrative operation after the coal gasification under secondary wind participates in, be a kind of suitable China's national situation, low-cost clean coal combustion new equipment, belong to environment-friendly boiler, have simple in structure, reliable, fault is few, efficiency of combustion is high, fuel saving, initial dust-density emission are low, simplify the operation, environmentally friendly characteristics.This stove can use bituminous coal, brown coal, industrial shaping coal or biomass fuel, and coal adaptability is strong.
Description of drawings
Fig. 1 is the overall assembly structure schematic diagram of coal gasification combustion boiler that has rearmounted secondary furnace;
Fig. 2 is the A-A cutaway view among Fig. 1.
Piece number explanation among the figure:
1, shoot door, 2, air compartments, 3, front wall, 4, fixed grate, 5, firing door, 6, preposition coal gasification combustion chamber, 7, secondary wind jet pipe group, 8, partition wall, 9, rearmounted secondary furnace, 10, flame export, 11, secondary wind jet pipe group, 12, high temperature smoke elimination chimney arch, 13, flying dust expansion chamber, 14, vertical shell, 15, set of heat exchange tubes, 16, flue, 17, outlet flue.
The specific embodiment
Below in conjunction with accompanying drawing the utility model optimum implementation is described in detail.The coal gasification combustion boiler that has rearmounted secondary furnace comprises preposition coal gasification combustion chamber 6 and vertical shell 14; The bottom installs and fixes fire grate 4 in preposition coal gasification combustion chamber 6, in fixed grate 4 bottoms air compartment 2 is set one time, equipped respectively firing door 5 and shoot door 1 are installed the secondary wind jet pipe group 7 that sprays to preposition coal gasification combustion chamber 6 on 6 both walls of preposition coal gasification combustion chamber on the front wall 3 of a preposition coal gasification combustion chamber 6 and an air compartment 2; Equipped set of heat exchange tubes 15 in vertical shell 14, flue 16 fits over vertical shell 14 tops admittedly, and is interconnected; The rear portion of preposition coal gasification combustion chamber 6, and vertical shell 14 between establish and adorn rearmounted secondary furnace 9, partition wall 8 separates preposition coal gasification combustion chamber 6 and rearmounted secondary furnace 9; Be provided with the flame export 10 that preposition coal gasification combustion chamber 6 is connected with rearmounted secondary furnace 9 on the top of partition wall 8, secondary wind jet pipe group 11 is configured on the partition wall 8 on flame export 10 tops; Outlet flue 17 is opened on vertical shell 14 and the rearmounted secondary furnace 9 matching part housing following sides, and rearmounted secondary furnace 9 is communicated with vertical shell 14.The upper back is provided with high temperature smoke elimination chimney arch 12 in rearmounted secondary furnace 9.Below vertical shell 14 inside are positioned at set of heat exchange tubes 15, flying dust expansion chamber 13 is set.
When operation is used, coal is thrown on the fixed grate 4 in the preposition coal gasification combustion chamber 6 by firing door 5, the coal seam of fixed grate 4 is thicker, send into by the part air that air compartment 2 will burn required, burnt under anaerobic condition in coal seam on the fixed grate 4, produce a large amount of raw gas, under the strong mixing of the combination air-spray that secondary wind jet pipe group 7 sprays, burn simultaneously; Combustion flame and uncombusted coal gas enter rearmounted secondary furnace 9 by the flame export on the partition wall 8 10, with the strong mixed combustion of combination air-spray from 11 ejections of secondary air channel group, high temperature smoke elimination chimney arch 12 makes the combustion zone keep the condition of high temperature and has strengthened uncombusted coal gas and the mixed combustion of combination air-spray simultaneously, eliminated the condition that produces black smoke, the solid particle that carries in the flue gas is split into the bottom of rearmounted secondary furnace 9 simultaneously, or be deposited to the bottom of flying dust expansion chamber 13, can regularly remove.After the flue gas that burning produces carries out heat exchange through outlet flue 17, by vertical shell 14 and set of heat exchange tubes 15, discharge boiler from flue 16.
Claims (3)
1, a kind of coal gasification combustion boiler that has rearmounted secondary furnace, comprise preposition coal gasification combustion chamber (6) and vertical shell (14), it is characterized in that in preposition coal gasification combustion chamber (6) the rear portion, be positioned at and vertical shell (14) between establish and adorn rearmounted secondary furnace (9), partition wall (8) separates preposition coal gasification combustion chamber (6) and rearmounted secondary furnace (9); Be provided with the flame export (10) that preposition coal gasification combustion chamber (6) is connected with rearmounted secondary furnace (9) on the top of partition wall (8), secondary wind jet pipe group (11) is configured on the partition wall (8) on flame export (10) top; Outlet flue (17) is opened on vertical shell (14) and rearmounted secondary furnace (9) the matching part housing following side, and rearmounted secondary furnace (9) is communicated with vertical shell (14).
2, the coal gasification combustion boiler that has rearmounted secondary furnace according to claim 1 is characterized in that the upper back is provided with high temperature smoke elimination chimney arch (12) in rearmounted secondary furnace (9).
3, the coal gasification combustion boiler that has rearmounted secondary furnace according to claim 1 is characterized in that being positioned at set of heat exchange tubes (15) below in vertical shell (14) inside is provided with flying dust expansion chamber (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200206246U CN2809428Y (en) | 2005-04-15 | 2005-04-15 | Coal gasified and fired boiler with postpositive burn-out chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200206246U CN2809428Y (en) | 2005-04-15 | 2005-04-15 | Coal gasified and fired boiler with postpositive burn-out chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2809428Y true CN2809428Y (en) | 2006-08-23 |
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ID=36925612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200206246U Expired - Lifetime CN2809428Y (en) | 2005-04-15 | 2005-04-15 | Coal gasified and fired boiler with postpositive burn-out chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2809428Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261009B (en) * | 2008-04-21 | 2010-06-09 | 北京科技大学 | Horizontal type fluidized-bed boiler |
-
2005
- 2005-04-15 CN CNU2005200206246U patent/CN2809428Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261009B (en) * | 2008-04-21 | 2010-06-09 | 北京科技大学 | Horizontal type fluidized-bed boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150415 Granted publication date: 20060823 |
|
| DD01 | Delivery of document by public notice |
Addressee: Jing Lei Document name: Notification of Expiration of Patent Right Duration |