CN203323109U - Environment-friendly type biomass chain grate furnace - Google Patents
Environment-friendly type biomass chain grate furnace Download PDFInfo
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- CN203323109U CN203323109U CN2013203037653U CN201320303765U CN203323109U CN 203323109 U CN203323109 U CN 203323109U CN 2013203037653 U CN2013203037653 U CN 2013203037653U CN 201320303765 U CN201320303765 U CN 201320303765U CN 203323109 U CN203323109 U CN 203323109U
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Abstract
The utility model discloses an environment-friendly type biomass chain grate furnace which comprises a coal feeding device, a chain fire grate, a slug grate device, a heat exchange device, a furnace body and a blower device. The blast outlets of the blower device are correspondingly formed in the lower portion of the chain of the chain fire grate. Secondary air flues are further arranged in a front furnace arch and a rear furnace arch, the outlets of the secondary air flues correspond to the hearth outlet of a combustion chamber, and the inlets of the secondary air flues are communicated with the outer side of the furnace body. The secondary air flues are used for introducing external air to carry out secondary combustion on volatile matter which is not fully combusted in a hearth, the combustion efficiency of biomass fuel is improved, a black smoke phenomenon is avoided, meanwhile, a plurality of low-power blast outlets are formed in the lower portion of the chain, and the combustion needs of block-shaped biomass fuel are met. The environment-friendly type biomass chain grate furnace has the advantages of being full in combustion, high in heat efficiency and stable in performance, and enabling energy-saving, environment-friendly and low-cost biomass fuel to be originally combined with the chain grate furnace.
Description
Technical field
The utility model relates to a kind of stove and accessory, and particularly a kind of environment-friendly biomass chain grate furnace used for biomass fuel combustion, belong to the boiler plant field.
Background technology
The chain grate furnace is divided and is mainly comprised by structure: coaling gear, traveling-grate stoker, air-blast device, slag-draining device, heat-exchanger rig and boiler furnace six major parts.Wherein, be divided into again from bottom to top combustion chamber, heat-exchanging chamber and discharge flue in body of heater, traveling-grate stoker is corresponding in combustion chamber, coaling gear is positioned at the body of heater outside corresponding with chain fire-gate input and output respectively with slag-draining device, heat-exchanger rig is positioned at heat-exchanging chamber, and heat-exchanger rig completes heat absorption and the conversion of combustion process.Due to combustion process mobile carrying out on traveling-grate stoker, therefore usually also be provided with trimmer arch and stove rear arch in combustion chamber, between trimmer arch and traveling-grate stoker, form front furnace, form rear hearth between stove rear arch and traveling-grate stoker.Front furnace and rear hearth can form and hold together fiery effect in combustion chamber, make flare and heat energy form and gather at the combustor exit place, to improve utilization efficiency of heat energy.For guaranteeing the adequacy of fired coal combustion, air-blast device is separately positioned on the outer end of front furnace and rear hearth, air blast except the fire coal in movement carry out combustion-supporting, also can form motive force heat and flare are converged by two side direction stockhole places.
Concrete combustion process is: after the coal-fired coal bunker by coaling gear is sent on chain fire-gate input, through the traveling-grate stoker transmission, enter in combustion chamber, then, coal-fired on traveling-grate stoker through preheating and drying, burning, gradually extinguish three steps after, output to the body of heater outside by the traveling-grate stoker output, last, promote at any time, discharge through slag-draining device, once mobile combustion process completes, and with this process, back and forth carries out, and can form continuous burning and the use of chain grate furnace.Chain grate furnace sufficient combustion, the thermal efficiency is high, and it is convenient to control, but is only suitable for the fine coal that burns, and applicability is restricted.
In recent years, enhancing along with people's environmental protection, awareness of saving energy, utilize the various biomass fuels that agricultural stalk is made to occur in a large number, with biomass fuel, replace the use of burning of part low-quality, fine coal inferior, can reduce costs, can avoid the dependence to primary energy again, so, how, according to the characteristics of biomass fuel combustion, for chain grate furnace inner structure, improved, to improve the applicability of chain grate furnace, with regard to becoming the utility model, want the problem solved.
Summary of the invention
In view of above-mentioned existing situation, the utility model aim to provide a kind of efficiency of combustion high, burn with low cost, pollution-free, the living beings chain grate furnace of energy-saving and environmental protection.
The utility model is achieved through the following technical solutions:
A kind of environment-friendly biomass chain grate furnace, comprise coaling gear, traveling-grate stoker, slag-draining device, heat-exchanger rig and body of heater, be divided into from bottom to top combustion chamber, heat-exchanging chamber and discharge flue in described body of heater, traveling-grate stoker is corresponding in combustion chamber, position corresponding with the traveling-grate stoker front end in combustion chamber is provided with trimmer arch, position corresponding with the traveling-grate stoker rear end in combustion chamber is provided with the stove rear arch, also comprises air-blast device, and the air blast outlet correspondence of air-blast device is distributed in chain fire-gate chain below; Also be provided with secondary air duct in trimmer arch and stove rear arch, the outlet of secondary air duct is corresponding to the furnace outlet place of combustion chamber, and the entrance of secondary air duct is communicated with the body of heater outside.
The outlet of described secondary air duct is a plurality of, and a plurality of outlets are even shape and are arranged on trimmer arch and stove rear arch.
Environment-friendly biomass chain grate furnace described in the utility model, by the secondary air duct outlet is set on the trimmer arch at the stockhole place and stove rear arch, utilize secondary air duct to introduce outside air the sufficient fugitive constituent of unburned in burner hearth is carried out to second-time burning, improve the efficiency of combustion of biomass fuel, avoided the generation of black smoke situation; Simultaneously, under chain, the auxiliary air blast that a plurality of small-power air-supplies are set exports, and has met the burning needs of block biomass fuel, has guaranteed combustion process.Have sufficient combustion, the thermal efficiency is high, and the advantage of stable performance has formed energy-saving and environmental protection, the combination of biomass fuel and chain grate furnace advantage cheaply, has expanded the applicability of chain grate furnace.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Center of the present utility model is: for the burning feature of a large amount of environment-friendly biomass fuel in the chain grate furnace, combustion process to internal furnace mouth place, combustion chamber is improved, to improve the efficiency of combustion of biomass fuel, avoid the generation of black smoke situation, the applicability of extended chain grate furnace.
Below in conjunction with 1 pair of the utility model of accompanying drawing, be further described:
Environment-friendly biomass chain grate furnace described in the utility model, comprise coaling gear 1, traveling-grate stoker 14, slag-draining device 12, heat-exchanger rig 11 and body of heater 2.Wherein, coaling gear 1 and slag-draining device 12 are corresponding to traveling-grate stoker input and the output in body of heater 2 outsides, coaling gear 1 and slag-draining device 12 complete respectively the external discharge of residue after the stacking of block biomass fuel and burning, have guaranteed that combustion process can carry out in order and uninterruptedly.Be divided into again from bottom to top combustion chamber 9, heat-exchanging chamber 10 and discharge flue 3 three parts in body of heater 2, traveling-grate stoker 14 is corresponding to combustion chamber 9, and heat-exchanger rig 11 is positioned at heat-exchanging chamber 10.Trend for ease of control combustion process heat, position corresponding with traveling-grate stoker 14 front ends in combustion chamber 9 also is provided with trimmer arch 6, in combustion chamber 9, the position corresponding with traveling-grate stoker 14 rear ends is provided with stove rear arch 8, between trimmer arch 6 and stove rear arch 8, forms furnace outlet.
For meeting the burning needs of biomass fuel, avoid original impact on biomass fuel combustion at the larger air-blast device of traveling-grate stoker 14 two ends installation power, in the utility model, the air-blast device at original two ends has been modified into a plurality of air blast and has exported the mode that 13 correspondences are distributed in the chain below of traveling-grate stoker 14, the biomass fuel combustion process is carried out to slight wind-force transmission, with the biomass fuel that guarantees block structure can be fully, active combustion, performance biomass fuel combustibility is good, the advantage that combustibility is stable.
For further improving combustion efficiency, make not have fugitive constituent and the particle of burning in time fully to burn, also be provided with secondary air duct 5 in trimmer arch 6 and stove rear arch 8, the outlet 4 of secondary air duct 5 is corresponding to the furnace outlet place of combustion chamber 9, the entrance 7 of secondary air duct 5 is communicated with body of heater 2 outsides, secondary air duct 5 makes outside air can enter into smoothly the stockhole place, for the burning end provides sufficient oxygen part again, promotes second-time burning.In this example, for guaranteeing adequacy and the uniformity of air supply, the outlet 4 of secondary air duct 5 is provided with a plurality of, and is uniform row-like arrangement at trimmer arch 6 and stove rear arch 8 front ends.
In work, block biomass fuel is along with the transmission of traveling-grate stoker 14 is sent constantly in combustion chamber 9, preheating premenstruum (premenstrua) artifact matter fuel takes fire, be subject to power under chain to export 13 corresponding brushing than side drum wind, biomass fuel fully burns and constantly has unburnt fugitive constituent to shoot, be subject to the effect of inner of the boiler chamber face arch 6 and stove rear arch 8, heat and the unburnt fugitive constituent that burn can enter into through stockhole the heat-exchanging chamber 10 on upper strata, now, the secondary air duct 5 that is positioned at the stockhole place is introduced outside air, form second-time burning at the stockhole place, unburnt fugitive constituent is burnt again, completed the burning of imflammable gas and combustible, the generation of black smoke situation while having reduced chain grate furnace firing biomass fuel, guaranteed efficiency of combustion.
Claims (2)
1. an environment-friendly biomass chain grate furnace, comprise coaling gear, traveling-grate stoker, slag-draining device, heat-exchanger rig and body of heater, be divided into from bottom to top combustion chamber, heat-exchanging chamber and discharge flue in described body of heater, traveling-grate stoker is corresponding in combustion chamber, position corresponding with the traveling-grate stoker front end in combustion chamber is provided with trimmer arch, position corresponding with the traveling-grate stoker rear end in combustion chamber is provided with the stove rear arch, it is characterized in that, also comprise air-blast device, the air blast outlet correspondence of described air-blast device is distributed in chain fire-gate chain below; Also be provided with secondary air duct in described trimmer arch and stove rear arch, the outlet of secondary air duct is corresponding to the furnace outlet place of combustion chamber, and the entrance of secondary air duct is communicated with the body of heater outside.
2. environment-friendly biomass chain grate furnace according to claim 1, is characterized in that, the outlet of described secondary air duct is a plurality of, and a plurality of outlets are even shape and are arranged on trimmer arch and stove rear arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203037653U CN203323109U (en) | 2013-05-30 | 2013-05-30 | Environment-friendly type biomass chain grate furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203037653U CN203323109U (en) | 2013-05-30 | 2013-05-30 | Environment-friendly type biomass chain grate furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323109U true CN203323109U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203037653U Expired - Fee Related CN203323109U (en) | 2013-05-30 | 2013-05-30 | Environment-friendly type biomass chain grate furnace |
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| Country | Link |
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| CN (1) | CN203323109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276566A (en) * | 2015-09-16 | 2016-01-27 | 中国石油化工股份有限公司 | Method for retrofitting coal-fired boiler into biomass boiler |
| CN109140485A (en) * | 2018-07-18 | 2019-01-04 | 安徽省鑫恒生物颗粒能源有限公司 | It is a kind of can second-time burning biomass boiler |
-
2013
- 2013-05-30 CN CN2013203037653U patent/CN203323109U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276566A (en) * | 2015-09-16 | 2016-01-27 | 中国石油化工股份有限公司 | Method for retrofitting coal-fired boiler into biomass boiler |
| CN109140485A (en) * | 2018-07-18 | 2019-01-04 | 安徽省鑫恒生物颗粒能源有限公司 | It is a kind of can second-time burning biomass boiler |
| CN109140485B (en) * | 2018-07-18 | 2019-11-08 | 吴红燕 | It is a kind of can second-time burning biomass boiler |
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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 |
Granted publication date: 20131204 Termination date: 20150530 |
|
| EXPY | Termination of patent right or utility model |