CN203099801U - Coal seam reinforcing burner - Google Patents
Coal seam reinforcing burner Download PDFInfo
- Publication number
- CN203099801U CN203099801U CN 201220710942 CN201220710942U CN203099801U CN 203099801 U CN203099801 U CN 203099801U CN 201220710942 CN201220710942 CN 201220710942 CN 201220710942 U CN201220710942 U CN 201220710942U CN 203099801 U CN203099801 U CN 203099801U
- Authority
- CN
- China
- Prior art keywords
- coal
- wedge shape
- shape frame
- air
- air nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a coal seam reinforcing burner comprising a wedge frame, a plurality of coal plough sub-pieces, a plurality of air nozzles and an air inlet connecting pipe. The top plane of the wedge frame is of an inclined plane which forms an acute angle with the bottom plane; and the two lateral planes are fixedly connected with two lateral walls of a chain grate furnace. The coal plough sub-pieces are evenly arranged to form a first row of coal plough pieces and a second row of coal plough pieces, and are symmetrically fixed on the top plane. One air hole is reserved at the top of each air nozzle; at least two air holes are evenly reserved along the periphery on the lateral wall; the air nozzles are evenly fixed on the back of the wedge frame at intervals; and cavities of the air nozzles are communicated with an inner cavity of the wedge frame. The air inlet connecting pipe penetrates through the two lateral walls of the chain grate furnace, is fixed connected with the two lateral planes of the wedge frame respectively, and is communicated with the inner cavity of the wedge frame. By the aid of the coal seam reinforcing burner, mixture of air and coal particles is improved, spreading speed of air into the coal particles is increased, coal particle burning is reinforced, internal burn-off rate of the coal particles is increased, and carbon content of ashes is reduced.
Description
Technical field
The utility model relates to coal-burning boiler layer combustion technical field, particularly a kind of coal seam intensifying device at the coal-fired layer of chain-grate boiler.
Background technology
Chain furnace belongs to mobile grate firing, and its working method is after to be coal from fire grate one end drop on grate surface and enter burner hearth, and gradually by slowly moving behind the forward direction, the gap of the required air that burns by fire grate intersects vertically with the coal seam of moving from bottom to top with fire grate.Mode chain furnace combustion divides section to carry out along fire grate length, with the fuel that fire grate moves, finishes drying and heating, volatile matter successively and separates out burning, coke burning, burns process.Along with the carrying out of burning, coke is wrapped up by lime-ash in the coal particle on the one hand, and on the other hand, the coke at middle part, coal seam is folded by lime-ash up and down, hinders burning of coke, causes ash content carbon big; And the coal seam is static with respect to fire grate, and hardening of coal seam stops air to pass, mix, and coke can not burn, and the deslagging band is flourishing, need manually stir the coal seam and prevent the coal seam caking, and labour intensity is also very big.The intrinsic combustion characteristics of above-mentioned chain furnace causes its ash content carbon in actual motion big.Show that according to the substantive test data ash content carbon of China's chain-grate boiler is generally about 20%, up 40%.Therefore, reduced the thermal efficiency of boiler.
Based on above reason, the inventor thinks and adopts novel, unique intensified burning apparatus, can reduce the ash content carbon of chain furnace, reduces heat loss of imperfect solid combustion, improves boiler thermal output, reach the purpose of energy-conserving and environment-protective, and energy-saving potential is huge.
Summary of the invention
In view of the above-mentioned problems in the prior art, the utility model provides a kind of coal seam intensified burner that is applicable to chain furnace.
A kind of coal seam intensified burner comprises wedge shape frame, some plough coal sheets, some air nozzles and inlet pipe connection;
Described wedge shape frame is a pentahedron, described wedge shape frame comprises end face, bottom surface, back and two sides, described end face is the inclined plane, described bottom surface is a horizontal plane, described end face and described bottom surface form acute angle, described two sides and back are vertical plane, fixedly connected with the chain furnace both walls respectively in described two sides, and described end face, bottom surface, back and two sides closure surround inner chamber;
The evenly distributed formation first row's plough coal sheet of described plough coal sheet and second row's plough coal sheet, described first row's plough coal sheet and second row's plough coal sheet symmetry are fixed on the described end face;
Described air nozzle is a hollow circular cylinder, described air nozzle top offers a pore, described air nozzle sidewall evenly offers at least two pores along circumference, described some air nozzles evenly are fixed on the back of described wedge shape frame, and the cavity of described air nozzle is communicated with the inner chamber of described wedge shape frame;
Described inlet pipe connection passes the chain furnace both walls fixedlys connected with the two sides of described wedge shape frame respectively, and is communicated with the inner chamber of described wedge shape frame.
The axis and the described air nozzle axis normal of the pore that described air nozzle sidewall upper edge circumference is evenly offered.
The axis of the pore that the sidewall upper edge circumference of described air nozzle is evenly offered and described air nozzle axis are angle.
The inner chamber of described wedge shape frame also has a dividing plate, and described dividing plate is divided into gas chamber and water chamber with wedge shape frame inner chamber.
Also comprise into water tube connector and water outlet tube connector, described water inlet tube connector passes the chain furnace both walls with the water outlet tube connector fixedlys connected with described wedge shape frame two sides respectively, and is communicated with described water chamber, and described inlet pipe connection is communicated with gas chamber.
Technical scheme described in the utility model has the following advantages: in existing chain furnace coal seam described in the utility model intensified burner is set, the reinforcement air mixes with the coal grain, improve the diffusion velocity of air to the coal intragranular, strengthen the burning of coal grain, can effectively improve coal intragranular portion burnout rate, reduce ash content carbon, and then improve boiler thermal output.The utility model can be widely used in using the chain furnace of the high ash content colm of brown coal, bituminous coal, meager coal, anthracite and low heat value.Be applicable to boiler design, also be applicable to the technological transformation of existing boiler.
Description of drawings
Technical scheme for clearer explanation the utility model embodiment, the accompanying drawing of required use is done simple the introduction in will describing embodiment below, conspicuous, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1: the scheme of installation of the utility model in chain furnace;
Fig. 2: the perspective view of the utility model embodiment one;
The vertical view schematic diagram of Fig. 3: the utility model embodiment one;
Fig. 4: the master of embodiment one of the present utility model looks schematic diagram;
Fig. 5: the generalized section of embodiment one of the present utility model;
Fig. 6: another generalized section of embodiment one of the present utility model;
Fig. 7: the perspective view of the utility model embodiment two
The vertical view schematic diagram of Fig. 8: the utility model embodiment two;
Fig. 9: the generalized section of embodiment two of the present utility model
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment; technical scheme among the utility model embodiment is carried out clear, complete description; obvious described embodiment only is a comparatively preferred embodiment of a part of the present utility model; not whole embodiment; based on the embodiment in the utility model; those of ordinary skills are not paying the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Be elaborated below by embodiment:
Embodiment one
As shown in Figure 1, grate-fired furnace 20 comprises fire grate 21, face arch 22, rear arch 23 and outlet window 25, slowly move in burner hearth with fire grate 21 in coal seam 24, air is constantly roused by fire grate 21 bottoms and helps coal seam 24 burnings in the burner hearth, drum advances air band in the burner hearth and flammable fine particle and form high-temperature flue gas and flow to outlet window 25 directions simultaneously, and coal seam 24 remaining lime-ash after the chain furnace internal combustion is continued to carry by fire grate 21 discharges.Fire grate 21 tops that the utility model provides a kind of coal seam intensified burner 10 to be arranged in chain furnace 20 keep certain interval with fire grate 21, do not interfere the conveying action of fire grate 21.
Shown in Fig. 2-6, coal seam intensified burner 10 comprises wedge shape frame 11, plough coal sheet 12, air nozzle 13 and inlet pipe connection 14.Wedge shape frame 11 is a pentahedron, comprise end face 111, bottom surface 112, back 113, side 114, side 115 and inner chamber 116, end face 111 is the inclined plane, bottom surface 112 is a horizontal plane, end face 111 forms acute angle with bottom surface 112, two sides 114,115 and back 113 are vertical plane, and end face 111, bottom surface 112, back 113 and two sides 114,115 closures surround inner chamber 116.Plough coal sheet 12 evenly distributed formation first row's plough coal sheet 121 and second row's plough coal sheets 122, two row's plough coal sheets and end face 111 are angle, and two row's plough coal sheet symmetries are fixed on the end face 111, and the incline direction of first row's plough coal sheet 121 and second row's plough coal sheet is opposite.Air nozzle 13 is a hollow circular cylinder, the top of air nozzle 13 offers a pore, sidewall upper edge circumference evenly offers at least two pores, the axis that is opened in the pore on the air nozzle sidewall can be perpendicular with the axis of air nozzle 13, also can be in the tilted angle with the axis of air nozzle 13, some air nozzle 13 even fixed interval are on the back 113 of wedge shape frame, and the cavity of air nozzle 13 is communicated with the inner chamber 116 of wedge shape frame 11.Fixedlying connected inlet pipe connection 14 on the side 114 of wedge shape frame 11 and side 115, inlet pipe connection 14 is inner to be communicated with inner chamber 116.
Fixedly connected with the both walls of chain furnace with 115 in the two sides 114 of wedge shape frame 11, whole wedge shape frame 11 is fixed in the grate-fired furnace 20, and then make whole coal seam intensified burner 10 be fixed on chain furnace fire grate 21 tops to be connected with described air inlet, guarantee certain clearance simultaneously, avoid interfering the action of fire grate 21.Wedge shape frame 11 and plough coal sheet 12 all adopt extraordinary rare earth heat resisting steel.14 1 needs of inlet pipe connection pass the chain furnace side wall and are communicated with wedge shape frame 11 inner chambers 116, stay outside the chain furnace for one, feed combustion air by the export-oriented inlet pipe connection 14 of chain furnace, on the one hand, promote the coal seam to mix, help burning, on the other hand with air, the air that feeds can help 11 coolings of wedge shape frame, extending structure service life.
The utility model is arranged in the coal seam intensified burner of chain furnace fire grate top by designs fix, improves coal intragranular portion burnout rate, reduces ash content carbon, has realized improving the target of boiler thermal output.
Embodiment two
For reducing the high temperature resistant requirement of the utility model, provide another kind of water-cooled cooling moulded coal layer intensified burner in the present embodiment to material.
Shown in Fig. 7-9, the utility model provides a kind of coal seam intensified burner 10, comprise wedge shape frame 11, plough coal sheet 12, air nozzle 13 and inlet pipe connection 14, the described structure of present embodiment is identical substantially with embodiment one described structure, difference is, present embodiment also comprises into water tube connector 15 and water outlet tube connector 16, wedge shape frame 11 also has a dividing plate 117, dividing plate 117 is divided into gas chamber 1161 and water chamber 1162 with wedge shape frame hollow cavity 116, inlet pipe connection 14 passes chain furnace both walls and 1161 UNICOMs of gas chamber, water inlet tube connector 15 and water outlet tube connector 16 pass the chain furnace both walls fixedlys connected with 16 with wedge shape frame two sides 15 respectively, and be communicated with water chamber 1162, cooling water feeds water chamber 1162 by water inlet tube connector 15 outside chain furnace, wedge shape frame 11 integral body are cooled, flow out by water outlet tube connector 16 again.Can on water inlet tube connector 15, water inlet control valve be set, on water outlet tube connector 16, thermometer be set, regulate water inlet control valve, the leaving water temperature of water outlet tube connector 16 is controlled at below 100 ℃.
The utility model is by the coal seam intensified burner of design arrangement on the traveling-grate stoker face, and the reinforcement air mixes with the coal grain, improves the diffusion velocity of air to the coal intragranular, strengthen the burning of coal grain, improve coal intragranular portion burnout rate, reduce ash content carbon, realized improving the target of boiler thermal output.The utility model can be widely used in using the chain furnace of the high ash content colm of brown coal, bituminous coal, meager coal, anthracite and low heat value, reaches the efficient burning purpose.Be applicable to boiler design, also be applicable to the technological transformation of existing boiler.
Claims (5)
1. a coal seam intensified burner is characterized in that: comprise wedge shape frame, some plough coal sheets, some air nozzles and inlet pipe connection;
Described wedge shape frame is a pentahedron, described wedge shape frame comprises end face, bottom surface, back and two sides, described end face is the inclined plane, described bottom surface is a horizontal plane, described end face and described bottom surface form acute angle, described two sides and back are vertical plane, fixedly connected with the chain furnace both walls respectively in described two sides, and described end face, bottom surface, back and two sides closure surround inner chamber;
The evenly distributed formation first row's plough coal sheet of described plough coal sheet and second row's plough coal sheet, described first row's plough coal sheet and second row's plough coal sheet symmetry are fixed on the described end face;
Described air nozzle is a hollow circular cylinder, described air nozzle top offers a pore, described air nozzle sidewall evenly offers at least two pores along circumference, described some air nozzles evenly are fixed on the back of described wedge shape frame, and the cavity of described air nozzle is communicated with the inner chamber of described wedge shape frame;
Described inlet pipe connection passes the chain furnace both walls fixedlys connected with the two sides of described wedge shape frame respectively, and is communicated with the inner chamber of described wedge shape frame.
2. coal seam intensified burner according to claim 1 is characterized in that: the axis and the described air nozzle axis normal of the pore that described air nozzle sidewall upper edge circumference is evenly offered.
3. coal seam intensified burner according to claim 1, it is characterized in that: the axis of the pore that the sidewall upper edge circumference of described air nozzle is evenly offered and described air nozzle axis are angle.
4. coal seam intensified burner according to claim 1, it is characterized in that: the inner chamber of described wedge shape frame also has a dividing plate, and described dividing plate is divided into gas chamber and water chamber with wedge shape frame inner chamber.
5. as coal seam intensified burner as described in the claim 4, it is characterized in that: also comprise into water tube connector and water outlet tube connector, described water inlet tube connector passes the chain furnace both walls with the water outlet tube connector fixedlys connected with described wedge shape frame two sides respectively, and be communicated with described water chamber, described inlet pipe connection is communicated with gas chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710942 CN203099801U (en) | 2012-12-20 | 2012-12-20 | Coal seam reinforcing burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710942 CN203099801U (en) | 2012-12-20 | 2012-12-20 | Coal seam reinforcing burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203099801U true CN203099801U (en) | 2013-07-31 |
Family
ID=48851199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220710942 Expired - Fee Related CN203099801U (en) | 2012-12-20 | 2012-12-20 | Coal seam reinforcing burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203099801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032871A (en) * | 2012-12-20 | 2013-04-10 | 北京中煤神州节能环保技术开发有限公司 | Coal bed reinforced burner |
-
2012
- 2012-12-20 CN CN 201220710942 patent/CN203099801U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032871A (en) * | 2012-12-20 | 2013-04-10 | 北京中煤神州节能环保技术开发有限公司 | Coal bed reinforced burner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101585524B (en) | Fugitive constituent and preheated air passage structure of tank type carbon calciner | |
| CN103438437B (en) | A kind of adherent wind system of Opposite Firing Boiler | |
| CN201313819Y (en) | Volatile matter and preheated air channel structure of calciner | |
| CN201662042U (en) | Environment-friendly boiler adopting biomass gasified combustion | |
| CN103062757B (en) | The multiple overheavy firing chain-grate boiler of subregion | |
| CN102679390B (en) | Compound furnace arch and compound secondary air structure for cooperatively controlling generation of nitrogen oxide (NOX) | |
| CN105276566B (en) | Coal-fired boiler reform is the method for biomass boiler | |
| CN106678776A (en) | Smoke recycling stokerfeed boiler and smoke recycling multi-layer air distributing control method | |
| CN103388815B (en) | Horizontal type triple-pass chain-grate boiler combusting coal and biomass fuel | |
| CN203099801U (en) | Coal seam reinforcing burner | |
| CN201852128U (en) | Multi-purpose biomass boiler | |
| CN206459177U (en) | Flue gas recirculation chain furnace | |
| CN206861508U (en) | A kind of boiler and its side water wall high temperature corrosion resistance coking device | |
| CN103032871B (en) | Coal bed reinforced burner | |
| CN202328328U (en) | Biomass boiler | |
| CN103090406B (en) | Biomass boiler | |
| CN111121006B (en) | Horizontal pulverized coal boiler and control method thereof | |
| CN209801462U (en) | Chain furnace with flue gas recirculation | |
| CN203099886U (en) | Fly ash waveform separating and rotating burning device | |
| CN201166360Y (en) | Affiliated combustion apparatus for anthracite powder to replace lump coal | |
| CN202016876U (en) | Kiln for producing sodium silicate | |
| CN202581286U (en) | Solid fuel furnace and wet type flat fire grate for same | |
| CN203421664U (en) | Coal and biomass fuel burning horizontal type three-return-stroke chain-grate boiler | |
| CN210688186U (en) | Novel oblique pushing grate combustion device | |
| CN210891620U (en) | Hood grate on biomass boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20161220 |