CN201715522U - Hazardous waste incineration deacidification equipment - Google Patents

Hazardous waste incineration deacidification equipment Download PDF

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Publication number
CN201715522U
CN201715522U CN2010201973180U CN201020197318U CN201715522U CN 201715522 U CN201715522 U CN 201715522U CN 2010201973180 U CN2010201973180 U CN 2010201973180U CN 201020197318 U CN201020197318 U CN 201020197318U CN 201715522 U CN201715522 U CN 201715522U
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CN
China
Prior art keywords
flue gas
heat boiler
waste heat
burns
danger wastes
Prior art date
Application number
CN2010201973180U
Other languages
Chinese (zh)
Inventor
王和荣
张宏福
Original Assignee
中天环保产业(集团)有限公司
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Publication date
Application filed by 中天环保产业(集团)有限公司 filed Critical 中天环保产业(集团)有限公司
Priority to CN2010201973180U priority Critical patent/CN201715522U/en
Application granted granted Critical
Publication of CN201715522U publication Critical patent/CN201715522U/en

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Abstract

The utility model provides hazardous waste incineration deacidification equipment, which comprises a limestone powder chamber, a rotary kiln, a secondary combustion chamber, a waste heat boiler, a quenching humidifying tower and a bag type dust collector. The discharge port of the limestone powder chamber is connected with a spray gun arranged at one end of the rotary kiln through a rotary feeder, the other end of the rotary kiln is connected with the lower end of the secondary combustion chamber, the upper end of the secondary combustion chamber is connected with the flue gas inlet of the waste heat boiler, the flue gas outlet of the waste heat boiler is connected with the flue gas inlet at the upper end of the quenching humidifying tower, a spray nozzle is arranged at the top of the quenching humidifying tower and a discharge port is formed at the bottom thereof, and a flue gas outlet pipeline is arranged at the site close to the discharge port and is connected with the bag type dust collector. The hazardous waste incineration deacidification equipment has compact structure, small floor area, low investment, low operating cost and low price of deacidifying absorbent; and the deacidification product is dry ash which can be easily transported. The hazardous waste incineration deacidification equipment has improved deacidification efficiency by 8 percent to 15 percent through deacidification recycling.

Description

Danger wastes burns depickling equipment

Technical field

The utility model relates to a kind of danger wastes and burns depickling equipment.

Background technology

Contain a large amount of sour gas (as HCl, HF, SO in the flue gas that the burning danger wastes produces XDeng), dust, heavy metal be Ji pollutants such as bioxin need purify control to flue gas.Usually the removal methods of sour gas comprises dry method, semidry method, wet method, wherein the dry method depickling is to enter alkaline matter and the sour gas that the deduster forward direction wherein sprays into dry state to flue gas to react, alkaline matter use amount in this method is big, the operating cost height, deacidification efficiency also is subjected to certain restriction, and the semidry method depickling is with Ca (OH) 2Slurries spray in the reactor and react with sour gas, the Ca in this method (OH) 2The preparation system more complicated of slurries; And the form of scrubbing tower is adopted in the wet method depickling, can produce the waste water that contains high concentration inorganic salts and heavy metal, the equipment investment height.

The utility model content

The purpose of this utility model is to provide a kind of danger wastes to burn depickling equipment, this equipment be applicable to industrial furnace just, the removal of intermediate sour gas.

For achieving the above object, the utility model is taked following technical scheme:

A kind of danger wastes burns depickling equipment, this equipment comprises limestone powder bin, rotary kiln, dual firing chamber, waste heat boiler, chilling conditioning Tower and sack cleaner, wherein the discharging opening of limestone powder bin connects the spray gun that rotary kiln one end is provided with by the revolution batcher, the other end of this rotary kiln connects the lower end of dual firing chamber, the upper end of this dual firing chamber connects the gas approach of waste heat boiler, the exhanst gas outlet of waste heat boiler connects the flue gas input port of chilling conditioning Tower upper end, the top of this chilling conditioning Tower is provided with nozzle, the bottom is provided with discharging opening, be provided with the flue gas output channel near this discharging opening place, this flue gas output channel connects sack cleaner.

Limestone powder bin described in the utility model top is provided with deduster.

Revolution batcher described in the utility model is connected with described spray gun by delivery pump, and the other end of this delivery pump connects roots blower.

Waste heat boiler described in the utility model is an auxiliary circulation water pipe waste heat boiler.

Flue gas output channel described in the utility model is provided with the active carbon injection apparatus.

The discharging opening that the utility model is stated chilling conditioning Tower lower end is provided with blocking valve.

Sack cleaner described in the utility model bottom is provided with feed opening, and this feed opening is connected to the flue gas input port of chilling conditioning Tower.

The technical process that danger wastes of the present utility model burns depickling equipment is divided into two stages.Phase I, with lime stone air injection high-temperature region in the rotary kiln, the lime stone decomposes becomes CaO and CO 2, part SO in having active CaO surface and flue gas 2Reaction generates CaSO 4Second stage by the chilling conditioning Tower is set, is carried out humidifying cooling to flue gas, and the symphysis of dripping of CaO particle and unevaporated water becomes the very high Ca of chemism (OH) in the flue gas 2, the ionic liquid phase reaction takes place between CaO particle surface and sour gas, significantly improve system's deacidification efficiency and absorbent utilization rate.The heating of humidification water is evaporated rapidly, carries unreacted absorbent and deacidified product to the flue gas output channel by strength.

In addition, the flue gas after process CaO partially absorbs can reduce the temperature of flue gas by waste heat boiler, part heat in the smoke evacuation obtains recycling, and has saved the energy, simultaneously all right sedimentation part flue dust, help alleviating environmental pollution, reduce the load of subsequent treatment process.

The active carbon injection apparatus that the flue gas output channel is provided with sprays active carbon in flue gas, pollutants such as the heavy metal, bioxin in the flue gas enter sack cleaner by charcoal absorption and with flue gas, and pollutants such as the heavy metal, bioxin that is adsorbed separate with flue gas in sack cleaner.

Sack cleaner is collected solid phase dry state reactant mixture, be transported to the flue gas input port of chilling conditioning Tower again, after static mixer fully mixes, enter in the tower, can improve the deacidification efficiency of 8-15% through modified or not modified strength.

The utility model has the advantages that:

Danger wastes of the present utility model burns depickling equipment, and device is compact, takes up an area of less, reduced investment; Operating cost is low, and the depickling absorbent is inexpensive; Deacidified product is the dry state lime-ash, easily transportation.But the deacidification efficiency hoisting power is stronger, can be by the deacidification efficiency of depickling ash recirculation raising 8-15%.

Description of drawings

Fig. 1 burns depickling equipment schematic diagram for the utility model danger wastes.

The specific embodiment

Below in conjunction with accompanying drawing danger wastes of the present utility model being burned depickling equipment is elaborated.Be illustrated in figure 1 as the utility model danger wastes and burn depickling equipment schematic diagram.This equipment comprises limestone powder bin 1, rotary kiln 2, dual firing chamber 3, waste heat boiler 4, chilling conditioning Tower 5 and sack cleaner 6, the top of limestone powder bin 1 is provided with deduster 7, the bottom is provided with discharging opening 8, this discharging opening 8 connects the spray gun 10 that rotary kiln 2 one ends are provided with by revolution batcher 9, revolution batcher 9 is connected with described spray gun by delivery pump 21, the other end of this delivery pump 21 connects roots blower 22, the other end of this rotary kiln 2 connects the lower end of dual firing chamber 3, the upper end of this dual firing chamber 3 connects the gas approach 11 of waste heat boiler 4, the exhanst gas outlet 12 of waste heat boiler connects the flue gas input port 13 of chilling conditioning Tower 5 upper ends, the top of this chilling conditioning Tower 5 is provided with nozzle 14, the bottom is provided with discharging opening 16, this discharging opening 16 is provided with blocking valve 17, be provided with flue gas output channel 18 near these discharging opening 16 places, this flue gas output channel 18 connects sack cleaner 6, be provided with active carbon injection apparatus 19 on flue gas output channel 18, the feed opening 20 of sack cleaner bottom is connected to the flue gas input port 13 of chilling conditioning Tower.

This danger wastes burns depickling equipment in actual application, adopting roots blower is the power wind regime, the agstone art is transported to the charging aperture of rotary kiln by the continuous delivery pump of low pressure, high-temperature region in spray gun spray drops into rotary kiln, the SO of lime stone generation after decomposing the CaO that produces and burning with danger wastes 2Reaction, danger wastes and lime stone carry out the second-time burning reaction in dual firing chamber, the flue gas that burning produces is after waste heat boiler is tentatively lowered the temperature separation, enter in the chilling conditioning Tower, in tower, spray into atomized water, fully mix with flue gas, make flue-gas temperature be reduced to 160-200 ℃, the symphysis of dripping of CaO particle and unevaporated water becomes active higher Ca (OH) in the flue gas 2, the ionic liquid phase reaction takes place at CaO particle surface and sour gas such as HCl, HF etc.The solid matter that reaction produces is got rid of through discharging opening, flue gas after the depickling enters the flue gas output channel, in flue gas, spray into active carbon by the active carbon injection apparatus on the flue gas output channel, the abundant mixing and absorption of active carbon and flue gas heavy metal particles wherein is Ji pollutants such as bioxin, and enter sack cleaner with flue gas and separate, the solid that obtains after sack cleaner separates can be transported to the flue gas input port recycling of chilling conditioning Tower again, and the clean flue gas after the separation is discharged by the exhanst gas outlet of sack cleaner.

Claims (7)

1. a danger wastes burns depickling equipment, it is characterized in that, this equipment comprises limestone powder bin, rotary kiln, dual firing chamber, waste heat boiler, chilling conditioning Tower and sack cleaner, wherein the discharging opening of limestone powder bin connects the spray gun that rotary kiln one end is provided with by the revolution batcher, the other end of this rotary kiln connects the lower end of dual firing chamber, the upper end of this dual firing chamber connects the gas approach of waste heat boiler, the exhanst gas outlet of waste heat boiler connects the flue gas input port of chilling conditioning Tower upper end, the top of this chilling conditioning Tower is provided with nozzle, the bottom is provided with discharging opening, be provided with the flue gas output channel near this discharging opening place, this flue gas output channel connects sack cleaner.
2. danger wastes according to claim 1 burns depickling equipment, it is characterized in that described limestone powder bin top is provided with deduster.
3. danger wastes according to claim 1 burns depickling equipment, it is characterized in that described revolution batcher is connected with described spray gun by delivery pump, and the other end of this delivery pump connects roots blower.
4. danger wastes according to claim 1 burns depickling equipment, it is characterized in that described waste heat boiler is an auxiliary circulation water pipe waste heat boiler.
5. danger wastes according to claim 1 burns depickling equipment, it is characterized in that described flue gas output channel is provided with the active carbon injection apparatus.
6. danger wastes according to claim 1 burns depickling equipment, it is characterized in that the discharging opening of described chilling conditioning Tower lower end is provided with blocking valve.
7. danger wastes according to claim 1 burns depickling equipment, it is characterized in that, described sack cleaner bottom is provided with feed opening, and this feed opening is connected to the flue gas input port of chilling conditioning Tower.
CN2010201973180U 2010-05-20 2010-05-20 Hazardous waste incineration deacidification equipment CN201715522U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201973180U CN201715522U (en) 2010-05-20 2010-05-20 Hazardous waste incineration deacidification equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201973180U CN201715522U (en) 2010-05-20 2010-05-20 Hazardous waste incineration deacidification equipment

Publications (1)

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CN201715522U true CN201715522U (en) 2011-01-19

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CN2010201973180U CN201715522U (en) 2010-05-20 2010-05-20 Hazardous waste incineration deacidification equipment

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424435A (en) * 2011-07-29 2012-04-25 Tcl奥博(天津)环保发展有限公司 Rapid desalination method and purification recycling device of hazardous waste incinerator flue gas washing tower high-concentration salt-containing wastewater
CN103007652A (en) * 2012-12-26 2013-04-03 枣庄矿业(集团)有限责任公司田陈煤矿 Limestone silo with dust remover
CN103017178A (en) * 2012-12-22 2013-04-03 蚌埠玻璃工业设计研究院 Waste gas dry purifying device for CVD (chemical vapor deposition) on-line function film plating
CN107189822A (en) * 2017-06-30 2017-09-22 新奥科技发展有限公司 A kind of processing method and processing system of solid dangerous waste
CN109114565A (en) * 2018-07-23 2019-01-01 新中天环保股份有限公司 A kind of solid sulphur in hazardous waste burn system consolidates chlorine treatment process

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424435A (en) * 2011-07-29 2012-04-25 Tcl奥博(天津)环保发展有限公司 Rapid desalination method and purification recycling device of hazardous waste incinerator flue gas washing tower high-concentration salt-containing wastewater
CN103017178A (en) * 2012-12-22 2013-04-03 蚌埠玻璃工业设计研究院 Waste gas dry purifying device for CVD (chemical vapor deposition) on-line function film plating
CN103017178B (en) * 2012-12-22 2016-04-13 蚌埠玻璃工业设计研究院 A kind of CVD plates functional membrane waste gas dry cleaning device online
CN103007652A (en) * 2012-12-26 2013-04-03 枣庄矿业(集团)有限责任公司田陈煤矿 Limestone silo with dust remover
CN107189822A (en) * 2017-06-30 2017-09-22 新奥科技发展有限公司 A kind of processing method and processing system of solid dangerous waste
CN109114565A (en) * 2018-07-23 2019-01-01 新中天环保股份有限公司 A kind of solid sulphur in hazardous waste burn system consolidates chlorine treatment process

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ASS Succession or assignment of patent right

Owner name: XINZHONGTIAN ENVIRONMENTAL CO., LTD.

Free format text: FORMER OWNER: ZHONGTIAN ENVIRONMENTAL PROTECTION INDUSTRIAL GROUP

Effective date: 20141128

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 400060 NANAN, CHONGQING TO: 400000 NANAN, CHONGQING

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Effective date of registration: 20141128

Address after: Nanping Nan'an District of Chongqing City Baihe road 400000 No. 43

Patentee after: XINZHONGTIAN ENVIRONMENTAL PROTECTION CO., LTD.

Address before: Nanping Nan'an District of Chongqing City Baihe road 400060 No. 43

Patentee before: Zhongtian Environmental Protection Industrial Group

Effective date of registration: 20141128

Address after: Nanping Nan'an District of Chongqing City Baihe road 400000 No. 43

Patentee after: XINZHONGTIAN ENVIRONMENTAL PROTECTION CO., LTD.

Address before: Nanping Nan'an District of Chongqing City Baihe road 400060 No. 43

Patentee before: Zhongtian Environmental Protection Industrial Group

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110119