CN201992662U - Novel garbage burning waste heat furnace - Google Patents
Novel garbage burning waste heat furnace Download PDFInfo
- Publication number
- CN201992662U CN201992662U CN2010205465017U CN201020546501U CN201992662U CN 201992662 U CN201992662 U CN 201992662U CN 2010205465017 U CN2010205465017 U CN 2010205465017U CN 201020546501 U CN201020546501 U CN 201020546501U CN 201992662 U CN201992662 U CN 201992662U
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- Prior art keywords
- burner hearth
- hearth
- described burner
- flue gas
- gas passage
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Abstract
The utility model discloses a novel garbage burning waste heat furnace including a hearth, a hearth inlet and a hearth outlet, wherein the hearth inlet is arranged at the front end of a flue gas channel inside the hearth, the hearth outlet is arranged at the tail end of the flue gas channel inside the hearth, and the flue gas channel inside the hearth, between the hearth inlet and the hearth outlet, has a variable cross section structure; the length, L(m), of the flue gas channel inside the hearth is equal to or more than the product of a maximal flow velocity, V(m/s), and T(s), i.e., L is equal to or more than V*T, wherein the T is 2s; and the hearth is provided with a flue gas recirculation system therein. The garbage burning waste heat furnace provided by the utility model has advantages of burning garbage fully; reducing discharge of poisonous and harmful substance effectively; having a hearth of film type water cooled wall structure wherein the film type water cooled wall has a prominent sealing performance, thereby having high heat exchange efficiency and not depositing ashes easily; and being high in use efficiency and long in service life.
Description
Technical field
The utility model belongs to boiler manufacturing technology field, specifically, relates to a kind of refuse incineration waste-heat oven.
Background technology
Garbage disposal has become a global problem, and countries in the world are all developed treatment facility and the method to rubbish one after another.At present, processing most countries to rubbish adopts refuse incineration exhaust-heating boiler that rubbish is carried out burning disposal, a kind of treatment technology that incineration treatment of garbage is the whole world present stage garbage disposal minimizing, resource, innoxious degree is the highest, and the heat energy that burn to produce can heat supply or generating, the inner poisonous and harmful element of rubbish obtains decomposing after the high temperature incineration process simultaneously, so incineration treatment of garbage is the effective technology that is fit to the big and medium-sized cities garbage disposal demand that Economic Development is rapid, land resource is nervous, garbage disposal is difficult.
Refuse incineration exhaust-heating boiler of the prior art, usually adopt common waste gas of incineration boiler to carry out, the burner hearth inside of described common waste gas of incineration boiler is the straight barrel type project organization that size diameter equates, and common waste gas of incineration boiler does not improve according to the characteristics of waste incineration and optimizes, and causes existing following many technical problems:
1, adopts existing waste gas of incineration boiler that rubbish is burned, can not adapt to the characteristics that refuse thermal value is low, moisture is high, usually cause waste incineration insufficient.
2, adopt existing waste gas of incineration boiler that rubbish is burned, existing waste gas of incineration boiler structurally can not fully satisfy the characteristics of incineration firing, usually produces a large amount of toxic and harmfuls.
3, adopt existing waste gas of incineration boiler that rubbish is burned, inefficiency, the time consuming time is long, disposal of refuse cost height.
The utility model content
The technical scheme that the utility model provides technical problem to be solved is, adopt existing waste gas of incineration boiler that rubbish is burned, can not adapt to the characteristics that refuse thermal value is low, moisture is high, usually cause waste incineration insufficient, usually produce a large amount of toxic and harmfuls, inefficiency, the time consuming time is long, disposal of refuse cost high-technology problem, and a kind of refuse incineration waste-heat oven is provided.
Technical scheme provided by the utility model is, a kind of refuse incineration waste-heat oven, comprise burner hearth, burner hearth import department and furnace outlet place, described burner hearth import department is arranged on the front end of described burner hearth inner gas passage, described furnace outlet place is arranged on the end of described burner hearth inner gas passage, burner hearth inner gas passage between described burner hearth import department and furnace outlet place is made as variable section structure, the length L of described burner hearth inner gas passage (rice) multiply by T (second) more than or equal to flue gas Peak Flow Rate V (meter per second) in the described burner hearth, be L 〉=V * T, described T is 2 seconds; Be provided with the flue gas recirculation system in the described burner hearth.
Described flue gas recirculation system connects described burner hearth middle part and bottom, and the partial fume at the described burner hearth middle part of flowing through is entered described burner hearth bottom by the flue gas recirculation system.
The integral body of described burner hearth inner gas passage is the serpentine of cleanliness.
One end in the vertical direction of the close described burner hearth of described burner hearth inner gas passage import department has certain gradient.
Described gradient is meant an end of the close described burner hearth of described burner hearth inner gas passage import department and the angle of vertical direction, and described angle is 0 degree-60 degree.Preferred described angle is 30 degree-45 degree.
Described burner hearth inner gas passage is provided with " slimwaist type " structure near an end at described furnace outlet place.
Described burner hearth inner gas passage diminishes earlier near the cross section of an end at described furnace outlet place, it is big that the back becomes, and the front end at the minimum place of described burner hearth exhaust gases passes cross section and the angle of vertical direction are smaller or equal to the rear end at the minimum place of described burner hearth exhaust gases passes cross section and the angle on the vertical direction.
Described refuse incineration exhaust-heating boiler burner hearth is provided with fin panel casing, and described fin panel casing is constituted by some cooling water pipes and steel plate.
Institute's furnace depth adapts with the inverse-push inclined reciprocating fire grate width that is mated.
Adopt technical scheme provided by the utility model, can effectively solve and adopt existing waste gas of incineration boiler that rubbish is burned, it is low to adapt to refuse thermal value, the characteristics that moisture is high, usually cause waste incineration insufficient, usually produce a large amount of toxic and harmfuls, inefficiency, time consuming time is long, disposal of refuse cost high-technology problem, simultaneously, refuse incineration exhaust-heating boiler provided by the utility model has the rubbish of making and fully burns, effectively lower the poisonous and harmful substance discharging, burner hearth adopts film water cold wall structure, and the fin panel casing sealing property is remarkable, and the heat exchange efficiency height, also be difficult for dust stratification; The service efficiency height, characteristics such as long service life.
Description of drawings
In conjunction with the accompanying drawings, the utility model is described further:
Fig. 1 is the utility model structural representation;
Fig. 2 is a flue gas recirculation system partial enlarged drawing among Fig. 1;
Wherein, 1 is burner hearth; 2 is burner hearth import department; 3 is the furnace outlet place; 4 is slimwaist type; 5 is the inverse-push inclined reciprocating fire grate; 6 is the flue gas recirculation system.
The specific embodiment
Shown in Fig. 1-2, design of the present utility model provides a kind of waste gas of incineration boiler that can adapt to the characteristics that the house refuse calorific value is low, moisture is high, the utility model waste gas of incineration boiler adopts the burning facility of international advanced technology, and on burner hearth 1 project organization, take into full account the characteristics of incineration firing, consider the degree of filling of flue gas in burner hearth 1 to greatest extent, prevent that pernicious gas from producing, and boiler is to the influence of surrounding environment health generation.
Technical scheme provided by the utility model is a kind of refuse incineration waste-heat oven, comprise burner hearth 1, burner hearth import department 2 and furnace outlet place 3, described burner hearth import department 2 is arranged on the front end of described burner hearth 1 inner gas passage, described furnace outlet place 3 is arranged on the end of described burner hearth 1 inner gas passage, burner hearth 1 inner gas passage between described burner hearth import department 2 and furnace outlet place 3 is made as variable section structure, the length L (rice) of described burner hearth 1 inner gas passage multiply by T (second) more than or equal to flue gas Peak Flow Rate V (meter per second) in the described burner hearth 1, be L 〉=V * T, described T is 2 seconds.
Described burner hearth 1 inner gas passage is made as variable section structure, has guaranteed that flue gas satisfies the degree of filling of burner hearth 1 to greatest extent in the waste gas of incineration boiler, satisfy the abundant burning of rubbish to greatest extent.The length L (rice) of burner hearth 1 inner gas passage multiply by T (second) more than or equal to flue gas Peak Flow Rate V (meter per second) in the described burner hearth 1, be L 〉=V * T, guarantee that to greatest extent the time of flue gas in burner hearth 1 was above 2 seconds, when even flue gas flow rate is maximum, can guarantee that also the time of flue gas in burner hearth 1 equals or exceeds 2 seconds, this structure has guaranteed the decomposition of pernicious gas (particularly dioxin).Highly the decomposition that prevents pernicious gas (particularly dioxin) is considered in design, and flue gas will be more than the time of staying 2s in stove.
Be provided with flue gas recirculation system 6 in the described burner hearth 1.Described flue gas recirculation system 6 connects described burner hearth 1 middle part and bottoms, and the partial fume at described burner hearth 1 middle part of flowing through is entered described burner hearth 1 bottom by flue gas recirculation system 6.Described burner hearth 1 is provided with inner flue gas recirculation 6 (IGR) of system and is used to control flue-gas temperature and exhaust gas volumn in the burner hearth 1, helps rubbish and fully burns, and reduces the toxic and harmful discharging.
The integral body of described burner hearth 1 inner gas passage is the serpentine of cleanliness, and this structure has guaranteed that the circulation of flue gas in burner hearth 1 is smooth and easy.
One end in the vertical direction of the close described burner hearth of described burner hearth 1 inner gas passage import department 2 has certain gradient.Described gradient is meant an end of the close described burner hearth of described burner hearth 1 inner gas passage import department 2 and the angle of vertical direction, and described angle is 0 degree-60 degree.Preferred described angle is 30 degree-45 degree.To be that exhaust gases passes is whole have certain included angle with vertical direction to described gradient, and the formation of this angle specifically can realize according to the outermost end outline line of the cross section of this exhaust gases passes vertical direction and the angle of vertical direction.This structure has guaranteed that flue gas satisfies the degree of filling of burner hearth 1 to greatest extent in the waste gas of incineration boiler, satisfy the abundant burning of rubbish to greatest extent.
Described burner hearth 1 inner gas passage is provided with " slimwaist type 4 " structure near an end at described furnace outlet place 3.Described burner hearth 1 inner gas passage diminishes earlier near the cross section of an end at described furnace outlet place 3, it is big that the back becomes, and the front end (outline line of the vertical direction of exhaust gases passes outermost end) at the minimum place of described burner hearth 1 exhaust gases passes cross section and the angle of vertical direction are smaller or equal to the angle on the rear end (outline line of the vertical direction of exhaust gases passes outermost end) at the minimum place of described burner hearth 1 exhaust gases passes cross section and the vertical direction.This structure has guaranteed backflow, the relatively circulation of flue gas in burner hearth 1, has guaranteed that flue gas satisfies the degree of filling of burner hearth 1 to greatest extent in the waste gas of incineration boiler, satisfy the abundant burning of rubbish to greatest extent.
Described refuse incineration exhaust-heating boiler burner hearth 1 is provided with fin panel casing, and described fin panel casing is constituted by some cooling water pipes and steel plate.Refuse incineration exhaust-heating boiler burner hearth 1 adopts film water cold wall structure, and the fin panel casing sealing property is remarkable, and the heat exchange efficiency height, also is difficult for dust stratification.
Institute's burner hearth 1 degree of depth adapts with inverse-push inclined reciprocating fire grate 5 width that mated.Described refuse incineration exhaust-heating boiler cooperates with inverse-push inclined reciprocating fire grate 5, and the design on burner hearth 1 degree of depth is complementary the two.
The foregoing description only is a most preferred embodiment of the present utility model, and any deformation design scheme in the utility model design all is a protection domain of the present utility model.
Claims (9)
1. refuse incineration waste-heat oven, comprise burner hearth (1), burner hearth import department (2) and furnace outlet place (3), described burner hearth import department (2) is arranged on the front end of described burner hearth (1) inner gas passage, described furnace outlet place (3) is arranged on the end of described burner hearth (1) inner gas passage, it is characterized in that, burner hearth (1) inner gas passage between described burner hearth import department (2) and furnace outlet place (3) is made as variable section structure, the length L rice of described burner hearth (1) inner gas passage multiply by T second more than or equal to the interior flue gas Peak Flow Rate of described burner hearth (1) V meter per second, be L 〉=V * T, described T is 2 seconds; Be provided with flue gas recirculation system (6) in the described burner hearth (1).
2. a kind of refuse incineration waste-heat oven according to claim 1, it is characterized in that, described flue gas recirculation system (6) connects described burner hearth (1) middle part and bottom, and the partial fume at described burner hearth (1) middle part of will flowing through enters described burner hearth (1) bottom by flue gas recirculation system (6).
3. a kind of refuse incineration waste-heat oven according to claim 1 and 2 is characterized in that, the integral body of described burner hearth (1) inner gas passage is the serpentine of cleanliness.
4. a kind of refuse incineration waste-heat oven according to claim 3 is characterized in that, described burner hearth (1) inner gas passage has certain gradient near an end in the vertical direction of described burner hearth import department (2).
5. a kind of refuse incineration waste-heat oven according to claim 4 is characterized in that, described gradient is meant described burner hearth (1) inner gas passage near an end of described burner hearth import department (2) and the angle of vertical direction, and described angle is 0 degree-60 degree.
6. a kind of refuse incineration waste-heat oven according to claim 5 is characterized in that, described angle is 30 degree-45 degree.
7. according to claim 4 or 5 or 6 described a kind of refuse incineration waste-heat ovens, it is characterized in that, described burner hearth (1) inner gas passage diminishes earlier near the cross section of an end at described furnace outlet place (3), it is big that the back becomes, and the front end at the minimum place of described burner hearth (1) exhaust gases passes cross section and the angle of vertical direction are smaller or equal to the rear end at the minimum place of described burner hearth (1) exhaust gases passes cross section and the angle on the vertical direction.
8. a kind of refuse incineration waste-heat oven according to claim 7 is characterized in that described fin panel casing is constituted by some cooling water pipes and steel plate.
9. a kind of refuse incineration waste-heat oven according to claim 8 is characterized in that, institute's burner hearth (1) degree of depth adapts with inverse-push inclined reciprocating fire grate (5) width that is mated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205465017U CN201992662U (en) | 2010-09-26 | 2010-09-26 | Novel garbage burning waste heat furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205465017U CN201992662U (en) | 2010-09-26 | 2010-09-26 | Novel garbage burning waste heat furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992662U true CN201992662U (en) | 2011-09-28 |
Family
ID=44669151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205465017U Expired - Fee Related CN201992662U (en) | 2010-09-26 | 2010-09-26 | Novel garbage burning waste heat furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022740A (en) * | 2010-09-26 | 2011-04-20 | 安徽金鼎锅炉股份有限公司 | Refuse-incinerated waste heat boiler |
| CN105627295A (en) * | 2014-10-29 | 2016-06-01 | 烟台龙源电力技术股份有限公司 | Chain-grate boiler and burning method |
-
2010
- 2010-09-26 CN CN2010205465017U patent/CN201992662U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022740A (en) * | 2010-09-26 | 2011-04-20 | 安徽金鼎锅炉股份有限公司 | Refuse-incinerated waste heat boiler |
| CN105627295A (en) * | 2014-10-29 | 2016-06-01 | 烟台龙源电力技术股份有限公司 | Chain-grate boiler and burning method |
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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: 20110928 Termination date: 20170926 |
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| CF01 | Termination of patent right due to non-payment of annual fee |