CN202762286U - Full-period rotation spray drying waste incineration flue gas cleaning device - Google Patents

Full-period rotation spray drying waste incineration flue gas cleaning device Download PDF

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Publication number
CN202762286U
CN202762286U CN201220426547.4U CN201220426547U CN202762286U CN 202762286 U CN202762286 U CN 202762286U CN 201220426547 U CN201220426547 U CN 201220426547U CN 202762286 U CN202762286 U CN 202762286U
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China
Prior art keywords
absorption tower
pipeline
lime
links
flue gas
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Expired - Lifetime
Application number
CN201220426547.4U
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Chinese (zh)
Inventor
纪树满
钟穗锋
陈俊丞
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D C ENVIRONMENTAL Co Ltd
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D C ENVIRONMENTAL Co Ltd
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Priority to CN201220426547.4U priority Critical patent/CN202762286U/en
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Abstract

The utility model discloses a full-period rotation spray drying waste incineration flue gas cleaning device which comprises a lime slurry preparation system, an absorption tower and a bag-type dust collector, a rotation sprayer is installed on the top portion of the absorption tower, the lime slurry preparation system is connected with the rotation sprayer, a smoke inlet pipeline is further connected with the top portion of the absorption tower, the lower portion of the absorption tower is connected with the bag-type dust collector through a connection flue, the full-period rotation spray drying waste incineration flue gas cleaning device is further provided with a water spray cooling system and a lime powder injection system, the water spray cooling system comprises a water storage groove which is connected with a water pump through a pipeline, and the water pump is connected with a fixed sprayer on the upper portion in the absorption tower through a pipeline. The lime powder injection system comprises a lime powder bin which is connected with a powder inlet of a pipeline injector through a pipeline, a gas inlet of the pipeline injector is connected with a lime powder spraying fan, an outlet of the pipeline injector is connected with a lime powder sprayer in the connection flue between the absorption tower and the bag-type dust collector through a pipeline, and the discharge valve is further arranged at an outlet of the lime powder bin.

Description

A kind of all the period of time rotary spraying and drying garbage-incineration smoke purifying device
Technical field:
The utility model relates to the burning city domestic garbage filed of flue gas purification, is specifically related to a kind of all the period of time rotary spraying and drying garbage-incineration smoke purifying device.
Background technology:
Waste incineration and generating electricity is as the solid waste treatment method of a kind of innoxious, minimizing and resource, and beginning is used widely in countries in the world.Yet rubbish can produce a lot of harmful substances in when burning, and wherein sour gas particularly is such as SO 2And HCl, if can not get effective purified treatment, will produce severe contamination to environment.Therefore the research of garbage-incineration smoke purifying method has become an important topic in the Study on Environmental Protection.
At present, the waste incineration purification techniques overwhelming majority adopts rotary spraying and drying technique, and this technical process is simple, and equipment is few, does not need deacidified prod is carried out after-treatment, does not have discharge of wastewater, and operating cost is low, has broad application prospects.Present rotary spraying and drying garbage-incineration smoke purifying device mainly is comprised of lime white preparation system, spray dryer, absorption tower and sack cleaner etc., lime stone is sent to the lime white preparation vessel through the lime warehouse with certain speed, generate lime white, it is for subsequent use to batch can that lime white is sent into lime white in batches from preparation vessel.The high-temperature flue gas that waste incineration produces enters the absorption tower from the spiral spiral case in tower body top, absorption tower.Rotary sprayer is installed in the spiral case of top, absorption tower, by High Rotation Speed lime white atomizing is dripped for tiny slurry, and the lime slurry droplet after the atomizing fully contacts with flue gas at Ta Nei, heat exchange, and carries out chemical neutralization and react with HCl, SO2 in the flue gas; Simultaneously to flue gas water spray, cooling.Flue gas enters sack cleaner from the connection flue on the cone of absorption tower after purifying, and part particle reaction residue is discharged from the bottom.Although this rotary spraying and drying garbage-incineration smoke purifying device has lot of advantages, at low thermophases such as boiler start/ stop stoves, the lime white of can't spraying causes flue gas directly to discharge, contaminated environment.And rotary sprayer needs regular maintenance, though its maintenance time is short, and the directly discharging of acid contaminant this moment, high-temperature flue gas directly enters sack cleaner, easily causes the destruction of sack cleaner anticorrosive coat.
Summary of the invention:
The purpose of this utility model provides a kind of all the period of time rotary spraying and drying garbage-incineration smoke purifying device of the depickling of can be when the boiler start/ stop stove etc. can also lowering the temperature when low thermophase or rotary sprayer periodic maintenance.
All the period of time of the present utility model rotary spraying and drying garbage-incineration smoke purifying device, comprise the lime white preparation system, absorption tower and sack cleaner, be equipped with rotary sprayer at top, described absorption tower, described lime white preparation system links to each other with rotary sprayer, also be connected with into smoke pipeline at the top, absorption tower, the bottom, absorption tower links to each other with sack cleaner through connecting flue again, it is characterized in that, also be provided with cooling spray system and lime injection system, described cooling spray system comprises aqua storage tank, aqua storage tank links to each other with water pump through pipeline, and water pump links to each other with the stationary nozzle of being located at the absorption tower internal upper part through pipeline again; Described lime injection system, comprise lime powder bin, lime powder bin links to each other with the powder entrance of duct injection device through pipeline, the gas entrance of duct injection device links to each other with the lime injection blower fan, the delivery outlet of duct injection device links to each other with the pulverized limestone shower nozzle that is connected in the flue of being located between absorption tower and the sack cleaner through pipeline, also is provided with discharge valve in the exit of lime powder bin.
The stationary nozzle of described absorption tower internal upper part is preferably the two-phase flow stationary nozzle, and water can well atomize by the two-phase flow stationary nozzle, and then mixes with high-temperature flue gas, thereby reduces the temperature of flue gas.
Described pulverized limestone shower nozzle is preferably installed with flue gas downstream.
The rotary spraying and drying garbage-incineration smoke purifying device of the prior art low thermophase such as when the boiler start/ stop stove, the lime white owing to can't spray, cause flue gas directly to discharge, when contaminated environment or rotary sprayer periodic maintenance, owing to can't use rotary sprayer spray lime white, cause acid contaminant directly to discharge, high-temperature flue gas directly enters sack cleaner, easily cause the destruction of deduster anticorrosive coat, at this moment, if what use is that all the period of time of the present utility model is when rotary spraying and drying garbage-incineration smoke purifying device, can open cooling spray system, water pump will be delivered to the stationary nozzle of being located at the absorption tower internal upper part to the water in the aqua storage tank, mixes with high-temperature flue gas after stationary nozzle makes water fogging, thereby reduce the temperature of flue gas, avoid high temperature to damage the anticorrosive coat of sack cleaner.And unlatching lime injection system, pulverized limestone enters the duct injection device through discharge valve from lime powder bin, again through the effect of lime injection blower fan, pulverized limestone is delivered to pulverized limestone shower nozzle in the connection flue of being located between absorption tower and the sack cleaner through pipeline, again by the diffusion of pulverized limestone shower nozzle, mix with the flue gas in the flue, thereby remove acid contaminant in the flue gas, avoid the direct discharging of flue gas and contaminated environment.
This shows, the cooling depickling problem of rotary spraying and drying garbage-incineration smoke purifying device when low thermophase or rotary sprayer periodic maintenance is a kind of all the period of time rotary spraying and drying garbage-incineration smoke purifying device of high-efficiency environment friendly when all the period of time of the present utility model, rotary spraying and drying garbage-incineration smoke purifying device can be good at solving the boiler start/ stop stove etc.
Description of drawings:
Fig. 1 is the structural representation of all the period of time of the present utility model rotary spraying and drying garbage-incineration smoke purifying device;
Wherein 1, lime white preparation system; 2, rotary sprayer; 3, absorption tower; 4, enter smoke pipeline; 5, sack cleaner; 6, aqua storage tank; 7, water pump; 8, lime powder bin; 9, discharge valve; 10, lime injection blower fan; 11, duct injection device; 12, pulverized limestone shower nozzle; 13, two-phase flow stationary nozzle.
The specific embodiment:
Following examples are to further specify of the present utility model, rather than to restriction of the present utility model.
Embodiment 1:
As shown in Figure 1, the all the period of time rotary spraying and drying garbage-incineration smoke purifying device of the present embodiment, comprise lime white preparation system 1, absorption tower 3 and sack cleaner 5, be equipped with rotary sprayer 2 at top, described absorption tower, described lime white preparation system 1 links to each other with rotary sprayer 2,3 tops also are connected with into smoke pipeline 4 on the absorption tower, flue gas enters in the absorption tower 3 by entering smoke pipeline 4, the bottom, absorption tower links to each other with sack cleaner 5 through connecting flue again, also be provided with cooling spray system and lime injection system, described cooling spray system comprises aqua storage tank 6, aqua storage tank 6 links to each other with water pump 7 through pipeline, water pump 7 links to each other with the two-phase flow stationary nozzle 13 of being located at the absorption tower internal upper part through pipeline again, described lime injection system, comprise lime powder bin 8, lime powder bin 8 links to each other with the powder entrance of duct injection device 11 through pipeline, the gas entrance of duct injection device 11 links to each other with lime injection blower fan 10, the delivery outlet of duct injection device 11 links to each other with the pulverized limestone shower nozzle 12 that is connected in the flue of being located between absorption tower 3 and the sack cleaner 5 through pipeline, pulverized limestone shower nozzle 12 is installed with flue gas downstream, also is provided with discharge valve 9 in the exit of lime powder bin 8.
Above-listed detailed description is that this embodiment limits claim of the present utility model for the specifying of the utility model possible embodiments, and does not allly break away from the equivalence that the utility model does and implements or change, all should be contained in the claim of this case.

Claims (3)

  1. One kind all the period of time rotary spraying and drying garbage-incineration smoke purifying device, comprise the lime white preparation system, absorption tower and sack cleaner, be equipped with rotary sprayer at top, described absorption tower, described lime white preparation system links to each other with rotary sprayer, also be connected with into smoke pipeline at the top, absorption tower, the bottom, absorption tower links to each other with sack cleaner through connecting flue again, it is characterized in that, also be provided with cooling spray system and lime injection system, described cooling spray system comprises aqua storage tank, aqua storage tank links to each other with water pump through pipeline, and water pump links to each other with the stationary nozzle of being located at the absorption tower internal upper part through pipeline again; Described lime injection system, comprise lime powder bin, lime powder bin links to each other with the powder entrance of duct injection device through pipeline, the gas entrance of duct injection device links to each other with the lime injection blower fan, the delivery outlet of duct injection device links to each other with the pulverized limestone shower nozzle that is connected in the flue of being located between absorption tower and the sack cleaner through pipeline, also is provided with discharge valve in the exit of lime powder bin.
  2. All the period of time according to claim 1 rotary spraying and drying garbage-incineration smoke purifying device, it is characterized in that, the stationary nozzle of described absorption tower internal upper part is the two-phase flow stationary nozzle.
  3. All the period of time according to claim 1 rotary spraying and drying garbage-incineration smoke purifying device, it is characterized in that, described pulverized limestone shower nozzle and flue gas downstream are installed.
CN201220426547.4U 2012-08-24 2012-08-24 Full-period rotation spray drying waste incineration flue gas cleaning device Expired - Lifetime CN202762286U (en)

Priority Applications (1)

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CN201220426547.4U CN202762286U (en) 2012-08-24 2012-08-24 Full-period rotation spray drying waste incineration flue gas cleaning device

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Application Number Priority Date Filing Date Title
CN201220426547.4U CN202762286U (en) 2012-08-24 2012-08-24 Full-period rotation spray drying waste incineration flue gas cleaning device

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CN202762286U true CN202762286U (en) 2013-03-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102814116A (en) * 2012-08-24 2012-12-12 广州迪斯环保设备有限公司 All-time interval rotary spray drying waste incineration flue gas purification device
CN107023840A (en) * 2016-02-02 2017-08-08 肇庆乐华陶瓷洁具有限公司 A kind of novel secondary oxidation-type refuse destructor plant and its application method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102814116A (en) * 2012-08-24 2012-12-12 广州迪斯环保设备有限公司 All-time interval rotary spray drying waste incineration flue gas purification device
CN107023840A (en) * 2016-02-02 2017-08-08 肇庆乐华陶瓷洁具有限公司 A kind of novel secondary oxidation-type refuse destructor plant and its application method

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Granted publication date: 20130306

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