CN105465796A - Waste incineration boiler - Google Patents
Waste incineration boiler Download PDFInfo
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- CN105465796A CN105465796A CN201510135246.4A CN201510135246A CN105465796A CN 105465796 A CN105465796 A CN 105465796A CN 201510135246 A CN201510135246 A CN 201510135246A CN 105465796 A CN105465796 A CN 105465796A
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- vertical
- temperature superheater
- burning boiler
- boiler according
- garbage burning
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Abstract
The invention belongs to the technical field of waste incineration treatment and particularly relates to a waste incineration boiler. According to the waste incineration boiler, the structural arrangement is reasonable, reduction, resource recovery and harmlessness of waste can be achieved, and the waste incineration boiler makes a positive contribution to environment protection. The waste incineration boiler comprises a hearth. A fire grate is arranged below the hearth. A waste hopper is installed on a front wall on the lower portion of the hearth. The waste incineration boiler is characterized in that a vertical reburning chamber, three vertical flues and a tail vertical flue are sequentially arranged on the rear portion of the hearth; a non-selective catalytic reduction (NSCR) device is installed on a water wall of the hearth; the three vertical flues are sequentially provided with a high-temperature superheater, an intermediate-temperature superheater and a low-temperature superheater from bottom to top sequentially; a selective catalytic reduction (SCR) device is installed on the tail vertical flue.
Description
Technical field
The invention belongs to and utilize incineration treatment of garbage technical field, be specially a kind of garbage burning boiler.
Background technology
When self-contained thermoelectric plant, industrial production, need the steam using boiler to produce, the normally used fuel of boiler is fossil fuel, as coal, oil and gas etc.Fossil fuel are non-renewable primary energy, and because primary energy supply day is becoming tight, price constantly rises, and have become the significant problem of serious restriction national economy sustainable development.
In order to tackle the shortage of primary energy and develop the economy, improve the people's livelihood, the energy is had to the problem of more demands, except strengthening saving energy and reduce the cost, improve except the utilization rate of primary energy, also should actively make great efforts to seek new forms of energy, this have become the only way of various countries' energy strategy development.
Along with the fast development of economy and the raising of environmental protection consciousness, the problem being processed into current international community concern of a large amount of domestic waste is for the China of populous nation, particularly outstanding.The heat that house refuse burning produces is utilizable, if by consumer waste filling and embedding compost and sanitary landfills, not only waste resource, also pollutes the environment.Utilize house refuse to burn in the boiler, have minimizing, resource and innoxious advantage, the steam of generation can be used for generating and steam supply, has economize energy, reduces the social benefit of environmental pollution, also have good economic benefit.If but process not in place, a large amount of flue gases after incineration firing will produce very large pollution to air, how to drop to minimum by the harm of emission, just seem significant under the severe situation of global environmental protection.
The domestic feature that rubbish ubiquity calorific value is low, moisture content is high, ash is high, and complicated component and various, will burn fully by rubbish, and effectively suppress the generation of the harmful substances such as dioxin, and existing common boiler plant cannot meet above-mentioned requirements.
Summary of the invention
In order to solve the problem, the invention provides a kind of garbage burning boiler, its reasonable structural arrangement, the minimizing of rubbish, resource and innoxious can be realized, environmental protection is had a positive effect.
Its technical scheme is such: a kind of garbage burning boiler, it comprises burner hearth, described burner hearth arranged beneath has fire grate, the front wall of described lower furnace portion is provided with rubbish hopper, it is characterized in that, described burner hearth rear portion is disposed with vertical burning chamber, vertical three flues and afterbody vertical gas pass, the water-cooling wall of described burner hearth is provided with NSCR device, be disposed with high temperature superheater, medium temperature overheater, low temperature superheater from bottom to up in described vertical three flues, described afterbody vertical gas pass is provided with SCR device.
It is further characterized in that, arch before and after being provided with above described fire grate, and arch place, described front and back is furnished with Secondary Air;
In described burner hearth, bottom is provided with auxiliary burner;
Below described high temperature superheater in described vertical three flues, evaporimeter is installed;
Attemperator is separately installed with between described high temperature superheater and described medium temperature overheater, between described medium temperature overheater and described low temperature superheater;
In described afterbody vertical gas pass, economizer is installed;
In described afterbody vertical gas pass, shock wave or steam sootblower are installed;
The described afterbody vertical gas pass at described SCR device place installs by-pass flue, is provided with sideboard in described by-pass flue;
The pipe mining in-line arrangement of described evaporimeter, high temperature superheater, medium temperature overheater, low temperature superheater and economizer, described high temperature superheater adopts down current arrangement;
Described vertical burning chamber is provided with shock-wave ash blowing or steam burner hearth blows grey preformed hole.
After adopting structure of the present invention; rubbish is delivered on fire grate by hopper; carry out Thorough combustion, burn; the flue gas produced flows through burner hearth, vertical burning chamber, vertical three flues and afterbody vertical gas pass successively; form four backhauls to flow to, the SCR device water-cooling wall of burner hearth is provided with in NSCR device and afterbody vertical gas pass effectively can decompose NOx(nitrogen oxide in flue gas), environmental protection is had a positive effect; reasonable structural arrangement, can realize the minimizing of rubbish, resource and innoxious.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of garbage burning boiler, it comprises burner hearth 5, burner hearth 5 is arranged on steelframe 20, drum 21 is installed above burner hearth 5, burner hearth 5 arranged beneath has fire grate 2, the front wall of burner hearth 5 bottom is provided with rubbish hopper 1, burner hearth 5 rear portion is disposed with vertical burning chamber 6, vertical three flues 7 and afterbody vertical gas pass 9, the water-cooling wall of burner hearth 5 is provided with NSCR device 8, afterbody vertical gas pass 9 is provided with SCR device 10, NSCR device 8 and SCR device 10 high for domestic garbage ash and city, moisture content is high, calorific value is low, and complicated component and various, NOx(nitrogen oxide in flue gas) characteristic that content is high, can effectively solve the problem, evaporimeter 14, high temperature superheater 11, medium temperature overheater 12, low temperature superheater 13 is disposed with from bottom to up in vertical three flues 7, evaporimeter 14 can prevent the temperature entering high temperature superheater 11 too high, avoid High Temperature Corrosion, increase the service life, be separately installed with attemperator 18 between high temperature superheater 11 and medium temperature overheater 12, between medium temperature overheater 12 and low temperature superheater 13, boiler export vapor (steam) temperature can well be adjusted.
Arch 3 before and after being also provided with above fire grate 2, front and back are encircleed 3 places and are furnished with Secondary Air 4, can strengthen the disturbance to flue gas, and the fire stroke of prolong smoke can obtain better combustion efficiency, improve boiler whole efficiency; And bottom side wall is provided with auxiliary burner 19 in burner hearth 5, can improve when boiler load is lower or refuse thermal value is lower and control cigarette temperature, impel dioxin to decompose, some regions in burner hearth 5 be provided with castable refractory, can in-furnace temperature be improved, water-cooling wall also can be prevented by flue gas corrosion simultaneously.
Economizer 16, shock wave or steam sootblower 17 is installed in afterbody vertical gas pass 9, this place's flying dust is relatively less, cigarette temperature is also lower, adopts the form such as shock wave, steam to blow ash and can obtain better ash-removal effect, thoroughly avoid many leakage phenomenons caused due to rapping both at home and abroad.
The afterbody vertical gas pass 9 at SCR device 10 place installs by-pass flue 24, sideboard 25 is installed in by-pass flue 24, when sideboard 25 closes, flue gas is interior by carrying out denitration process from SCR device 10, when sideboard 25 open, SCR device 10 close time, flue gas can directly through by-pass flue 24, and flexible and convenient to use, adaptability is stronger.
The pipe mining in-line arrangement of evaporimeter 14, high temperature superheater 11, medium temperature overheater 12, low temperature superheater 13 and economizer 16, between pipe, space is comparatively large, and be convenient to deashing, high temperature superheater 11 adopts down current arrangement, effectively can prevent high temperature corrosion.
Vertical burning chamber 6 is provided with shock-wave ash blowing or steam burner hearth blows grey preformed hole 15, when needs, installs shock wave or steam sootblower 17, further better ash-removal effect.
Be provided with platform staircase 23 at steelframe 20 sidepiece, be convenient to operating personnel and carry out climbing maintenance, fire grate 2 and afterbody vertical gas pass 9 end are provided with out lime-ash equipment 22.
Claims (10)
1. a garbage burning boiler, it comprises burner hearth, described burner hearth arranged beneath has fire grate, the front wall of described lower furnace portion is provided with rubbish hopper, it is characterized in that, described burner hearth rear portion is disposed with vertical burning chamber, vertical three flues and afterbody vertical gas pass, the water-cooling wall of described burner hearth is provided with NSCR device, be disposed with high temperature superheater, medium temperature overheater, low temperature superheater from bottom to up in described vertical three flues, described afterbody vertical gas pass is provided with SCR device.
2. a kind of garbage burning boiler according to claim 1, is characterized in that, arch before and after being provided with above described fire grate, arch place, described front and back is furnished with Secondary Air.
3. a kind of garbage burning boiler according to claim 1, is characterized in that, in described burner hearth, bottom is provided with auxiliary burner.
4. a kind of garbage burning boiler according to claim 1, is characterized in that, is provided with evaporimeter below the described high temperature superheater in described vertical three flues.
5. a kind of garbage burning boiler according to claim 1, is characterized in that, is separately installed with attemperator between described high temperature superheater and described medium temperature overheater, between described medium temperature overheater and described low temperature superheater.
6. a kind of garbage burning boiler according to claim 5, is characterized in that, is provided with economizer in described afterbody vertical gas pass.
7. a kind of garbage burning boiler according to claim 1, is characterized in that, is provided with shock wave or steam sootblower in described afterbody vertical gas pass.
8. a kind of garbage burning boiler according to claim 1, is characterized in that, the described afterbody vertical gas pass at described SCR device place installs by-pass flue, is provided with sideboard in described by-pass flue.
9. a kind of garbage burning boiler according to claim 6, is characterized in that, the pipe mining in-line arrangement of described evaporimeter, high temperature superheater, medium temperature overheater, low temperature superheater and economizer, and described high temperature superheater adopts down current arrangement.
10. a kind of garbage burning boiler according to claim 1, is characterized in that, described vertical burning chamber is provided with shock-wave ash blowing or steam burner hearth blows grey preformed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510135246.4A CN105465796A (en) | 2015-03-26 | 2015-03-26 | Waste incineration boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510135246.4A CN105465796A (en) | 2015-03-26 | 2015-03-26 | Waste incineration boiler |
Publications (1)
| Publication Number | Publication Date |
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| CN105465796A true CN105465796A (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510135246.4A Pending CN105465796A (en) | 2015-03-26 | 2015-03-26 | Waste incineration boiler |
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| CN (1) | CN105465796A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224981A (en) * | 2016-09-30 | 2016-12-14 | 云南烟叶复烤有限责任公司 | A kind of to relate to the cigarette garbage boiler thermodynamic system as fuel and method thereof |
| CN111550758A (en) * | 2020-04-17 | 2020-08-18 | 江联重工集团股份有限公司 | High-capacity high-parameter waste incineration waste heat boiler |
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| CN102022716A (en) * | 2010-12-24 | 2011-04-20 | 伟明环保设备有限公司 | Vertical waste incineration boiler |
| CN102322640A (en) * | 2011-08-04 | 2012-01-18 | 无锡华光锅炉股份有限公司 | Waste incineration boiler |
| CN202733864U (en) * | 2012-07-31 | 2013-02-13 | 太原锅炉集团有限公司 | Vertical type single boiler barrel waste incineration heat recovery boiler |
| CN203836944U (en) * | 2014-05-15 | 2014-09-17 | 北京洛卡环保技术有限公司 | SNCR-SCR mixed denitration system of circulating fluidized bed boiler |
| CN104132358A (en) * | 2014-06-12 | 2014-11-05 | 广东电网公司电力科学研究院 | Coal-fired power plant boiler system suitable for low-load operation and combustion adjusting method of boiler system |
| CN104147912A (en) * | 2014-07-10 | 2014-11-19 | 阿米那能源环保技术（中国）有限公司 | Flue-gas denitration method and device by mixing of selective non-catalytic reduction method SNCR and selective catalytic reduction method SCR |
| CN204629517U (en) * | 2015-03-26 | 2015-09-09 | 无锡华光锅炉股份有限公司 | Garbage burning boiler |
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2015
- 2015-03-26 CN CN201510135246.4A patent/CN105465796A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022716A (en) * | 2010-12-24 | 2011-04-20 | 伟明环保设备有限公司 | Vertical waste incineration boiler |
| CN102322640A (en) * | 2011-08-04 | 2012-01-18 | 无锡华光锅炉股份有限公司 | Waste incineration boiler |
| CN202733864U (en) * | 2012-07-31 | 2013-02-13 | 太原锅炉集团有限公司 | Vertical type single boiler barrel waste incineration heat recovery boiler |
| CN203836944U (en) * | 2014-05-15 | 2014-09-17 | 北京洛卡环保技术有限公司 | SNCR-SCR mixed denitration system of circulating fluidized bed boiler |
| CN104132358A (en) * | 2014-06-12 | 2014-11-05 | 广东电网公司电力科学研究院 | Coal-fired power plant boiler system suitable for low-load operation and combustion adjusting method of boiler system |
| CN104147912A (en) * | 2014-07-10 | 2014-11-19 | 阿米那能源环保技术（中国）有限公司 | Flue-gas denitration method and device by mixing of selective non-catalytic reduction method SNCR and selective catalytic reduction method SCR |
| CN204629517U (en) * | 2015-03-26 | 2015-09-09 | 无锡华光锅炉股份有限公司 | Garbage burning boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224981A (en) * | 2016-09-30 | 2016-12-14 | 云南烟叶复烤有限责任公司 | A kind of to relate to the cigarette garbage boiler thermodynamic system as fuel and method thereof |
| CN111550758A (en) * | 2020-04-17 | 2020-08-18 | 江联重工集团股份有限公司 | High-capacity high-parameter waste incineration waste heat boiler |
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Application publication date: 20160406 |
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