CN208990553U - A kind of circulating fluid bed desulfurization device - Google Patents

A kind of circulating fluid bed desulfurization device Download PDF

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Publication number
CN208990553U
CN208990553U CN201821376037.4U CN201821376037U CN208990553U CN 208990553 U CN208990553 U CN 208990553U CN 201821376037 U CN201821376037 U CN 201821376037U CN 208990553 U CN208990553 U CN 208990553U
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flue gas
outlet
desulfurizing tower
dirt pocket
fluid bed
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CN201821376037.4U
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万杏波
曾芳
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Foshan Huaqingzhiye Environment Protection Technology Co Ltd
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Foshan Huaqingzhiye Environment Protection Technology Co Ltd
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Abstract

A kind of circulating fluid bed desulfurization device, including desulfurizing tower, dirt pocket, desulfurizing agent powder cabin, the blower that dusts, circulating fan, air-introduced machine, chimney;Desulfurizing tower gas inlet end is respectively communicated with the smoke outlet of spray tower, kiln;Exhanst gas outlet is connected to dirt pocket import at the top of desulfurizing tower, and desulfurizing tower is equipped with flue gas throat, flue gas deceleration area, smoke reaction area from the bottom to top above gas inlet end;Flue gas throat interior diameter is smaller than smoke reaction area, the bottom-up increase of flue gas deceleration area interior diameter;The blower import and export that dusts is respectively communicated with desulfurizing agent powder cabin outlet end, flue gas deceleration area;Dirt pocket gas vent is sequentially communicated air-introduced machine, chimney;Circulating fan import and export respectively corresponds connection dirt pocket outlet at bottom, flue gas deceleration area.The utility model establishes steady flow condition using venturi technology, designs desulphurization circulating ash channel, makes to generate strong rolling, collision between flue gas and desulfurizing agent powder, between Desulphurization, extends desulfurization heat transfer, mass transfer and reaction time, enhance desulfurization effect.

Description

A kind of circulating fluid bed desulfurization device
Technical field
The utility model relates to flue gas desulfurization device, in particular to a kind of circulating fluid bed desulfurization device.
Background technique
Flue gas caused by Ceramics Enterprises mostlys come from spray drying tower and burning kiln, the main pollution of these flue gases Object is dust and sulfur dioxide.Currently, most of the flue gas desulfurization administration way of Ceramics Enterprises is to use conventional methods, that is, spray Mist tower discharged gas fume is by the way of sack cleaner and double alkali method desulfurizing tower, and roller kilns flue gas desulfurization uses wet desulphurization side Formula.But wet desulphurization mode needs a large amount of shower water to carry out sulfur dioxide absorption, usual sulfur dioxide concentration is higher, needs Liquid-gas ratio it is higher, quantity of circulating water is also more, and energy consumption is also higher.In addition, the unsuitable processing spray tower of sack cleaner is this It is aqueous, containing acid and containing the complicated flue gas such as tar, be easy to cause bag dust filter to block, or even damaged, dedusting caused to be failed.As it can be seen that needle Problem existing for traditional fume treatment to current ceramic industry spray tower and roller kilns, it is necessary to develop a set of efficient de- Sulphur dust-extraction unit can reduce energy consumption, entreprise cost while realizing fume treatment.
As it can be seen that the prior art could be improved and improve.
Utility model content
Place in view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of recirculating fluidized bed desulfurization Device, centralized processing ability is strong, without secondary pollution, operating cost is low, it is intended to solve Ceramics Enterprises spray tower in the prior art and The processing problem of kiln gas, realizes fume centralized processing, and Desulphurization is recycled.
In order to achieve the above object, the utility model takes following technical scheme:
A kind of circulating fluid bed desulfurization device, including desulfurizing tower, dirt pocket, desulfurizing agent powder cabin, the blower that dusts, circulated air Machine, air-introduced machine, chimney;The gas inlet end of the desulfurizing tower is used to be respectively communicated with the smoke outlet of spray tower, kiln;Desulfurization Top of tower exhanst gas outlet is connected to the import of dirt pocket, and desulfurizing tower is provided with flue gas larynx above its gas inlet end from the bottom to top Portion, flue gas deceleration area, smoke reaction area;The interior diameter of the flue gas throat is smaller than smoke reaction area, flue gas deceleration area it is interior The bottom-up increase of diameter;The outlet end of the desulfurizing agent powder cabin is connected to the import for the blower that dusts, and the outlet for the blower that dusts connects Pass through flue gas deceleration area;The gas vent of the dirt pocket is sequentially communicated in air-introduced machine, chimney;The circulating fan import goes out Mouth respectively corresponds the flue gas deceleration area of the outlet at bottom, desulfurizing tower that are connected to dirt pocket.
It further include water tank, multi-stage booster pump in the circulating fluid bed desulfurization device;The import of the multi-stage booster pump It is connected to water tank, the outlet of multi-stage booster pump is in the smoke reaction area of desulfurizing tower.
In the circulating fluid bed desulfurization device, the dirt pocket includes cabinet, several filter bags;The filter bag is vertical It is set to box house.
In the circulating fluid bed desulfurization device, the box house is provided with deflector.
In the circulating fluid bed desulfurization device, it is provided in the cabinet and is used to clean filter bag above filter bag Blowing device.
It further include desulfurization product storage chamber in the circulating fluid bed desulfurization device;The outlet at bottom of the desulfurizing tower, The outlet at bottom of dirt pocket is respectively communicated in desulfurization product storage chamber.
In the circulating fluid bed desulfurization device, between the outlet end of the desulfurizing agent powder cabin and the import for the blower that dusts It is provided with desulfurizing agent proportioning device.
The utility model has the advantages that
The utility model provides a kind of circulating fluid bed desulfurization device, mainly for current Ceramics Enterprises spray tower and kiln The disposition of kiln gas establishes stable flow field using venturi technology inside desulfurizing tower, and it is defeated to design Desulphurization circulation Channel is sent, is recirculating fluidized bed bed material without interruption --- Desulphurization.Desulfurizing tower is internally provided with flue gas throat, flue gas deceleration area With smoke reaction area, mixed flue gas, which enters after desulfurizing tower, increases its flow velocity in the lesser flue gas throat of interior diameter, rises always, warp Flue gas deceleration area is crossed, since its interior diameter expands, mixed flue gas speed and temperature decline, while being generated with the desulfurizing agent powder of penetrating Strong rolling, collision and mixing so that unsaturation vapor contained in flue gas be saturated rapidly and condense atomization formed it is more and Intensive small " drop ", fully absorbs the desulfurizing agent powder of sulfur dioxide in flue gas gas and penetrating, reaches effectively heat transfer, mass transfer And neutralization reaction occurs.When water deficient in flue gas, it can be pumped by multi-stage booster and the water in water tank is pressurized, is evacuated to desulfurizing tower Reaction zone, and realize water atomization.
Detailed description of the invention
Fig. 1 is the process flow chart of circulating fluid bed desulfurization device provided by the utility model.
Fig. 2 is the working principle diagram of circulating fluid bed desulfurization device provided by the utility model.
Specific embodiment
The utility model provides a kind of circulating fluid bed desulfurization device, for make the purpose of this utility model, technical solution and Effect is clearer, clear, and the utility model is further described as follows in conjunction with drawings and embodiments.It should be appreciated that Specific embodiment described herein only to explain the utility model, is not used to limit the utility model.
Fig. 1, Fig. 2 are please referred to, the utility model provides a kind of circulating fluid bed desulfurization device, including desulfurizing tower 1, dirt pocket 2, desulfurizing agent powder cabin 31, the blower 33 that dusts, circulating fan 4, air-introduced machine 5, chimney 6;The gas inlet end of desulfurizing tower 1 is for distinguishing It is connected to the smoke outlet of spray tower, kiln, the flue gas come out from spray tower and kiln is allowed to converge, flows into desulfurizing tower progress together Purified treatment;The top exhanst gas outlet of desulfurizing tower 1 is connected to the import of dirt pocket 2, desulfurizing tower 1 above its gas inlet end by Under supreme be provided with flue gas throat 11, flue gas deceleration area 12, smoke reaction area 13;The interior diameter of flue gas throat 11 compares smoke reaction Small, the bottom-up increase of the interior diameter of flue gas deceleration area 12 in area 13;The outlet end of desulfurizing agent powder cabin 31 is connected to the blower that dusts 33 import, the outlet for the blower 33 that dusts is in flue gas deceleration area 13;The gas vent of dirt pocket 2 is sequentially communicated in air-introduced machine 5, chimney 6;4 import of circulating fan, outlet respectively correspond the outlet at bottom for being connected to dirt pocket 2, the flue gas deceleration area of desulfurizing tower 1 13。
The circulating fluid bed desulfurization device uses venturi technology, is sprayed with desulfurizing agent in the flue gas deceleration area of desulfurizing tower Powder is contacted with each other with desulfurizing agent powder, collides, is mixed so that rising flue gas, and the ingenious flue gas come out using spray tower contains water This condition richly endowed by nature of vapour, has been transformed the environment of flue gas desulfurization in desulfurizing tower whereby;Speed increases when flue gas passes through flue gas throat Add, then in flue gas deceleration area cooling reduction of speed, and generates strong rolling, collision with desulfurizing agent powder and mix, so that in flue gas Contained unsaturated vapor becomes rapidly saturation, and the concurrent solidifying atomization of raw food fully absorbs two to form more and intensive droplets Sulfur oxide gas and desulfurizing agent powder realize neutralization reaction.In the smoke reaction area of desulfurizing tower, gravity has been built --- buoyant equilibrium Environment, enable desulfurizing agent powder to roll, be suspended in smoke reaction area for a long time, form circulation inside tower, fierce In rolling, collision process, the solid content shell of Desulphurization surface resultant is destroyed, and the unreacted fresh granules in the inside expose Come and continue to participate in neutralization reaction, to objectively play quickening reaction speed, rate of drying and increase substantially desulfurizing agent The effect of the utilization rate of powder;Desulfurization heat transfer, mass transfer and reaction time are substantially prolonged, desulfurization effect is improved, desulfuration efficiency can Stablize 90% or more.In addition, a part of desulfurizing agent powder can be carried in uphill process for flue gas or Desulphurization enters dirt pocket, warp Desulphurization, desulfurizing agent powder are settled, are deposited in dirt pocket bottom by the gas solid separation for crossing dirt pocket, and by circulating fan by its It is delivered to the flue gas reduction of speed area of desulfurizing tower, realization recycles, and saves the dosage of desulfurizing agent powder, the cost of enterprise is reduced, and And without sewage discharge.
Further, which further includes water tank 71, multi-stage booster pump 72;Multi-stage booster pump 72 Inlet communication is in water tank 71, and the outlet of multi-stage booster pump 72 is in the smoke reaction area of desulfurizing tower 1.Inside entrance desulfurizing tower Mixed flue gas contained by water deficient when, then by multi-stage booster pump be desulfurizing tower supplement water, it is fast when water enters desulfurizing tower Speed atomization, humidification.
Specifically, dirt pocket 2 includes cabinet 21, several filter bags 22;Filter bag is vertically arranged at box house.
Further, cabinet 21 is internally provided with deflector 23.Enter after flue gas comes out from outlet side at the top of desulfurizing tower Dirt pocket was mutually hit with deflector before this, so that coarse granule settles, falls into the ash bucket of cabinet in flue gas, played the pre- work to gather dust With, while air-flow and coarse granule being prevented directly to wash away filter bag, it is conducive to extend the service life of filter bag.
Further, the blowing device 9 for being used to clean filter bag 22 being provided in cabinet 21 above filter bag 22.Pass through The setting of blowing device carries out pressure-air hydro-peening to filter bag.
Further, which further includes desulfurization product storage chamber 8;The outlet at bottom of desulfurizing tower 1, The outlet at bottom of dirt pocket 2 is respectively communicated in desulfurization product storage chamber 8.In sweetening process, desulfurizing agent powder, vapor and dioxy Change and neutralization reaction occurs between sulphur, forms particle, and be settled down to desulfurization tower bottom, meanwhile, the Desulphurization settled inside dirt pocket Excessively, it can be transported to desulfurization product storage chamber, subsequent mashing work is convenient for or other recycle work, it is real Existing desulfurization product is easily handled, without secondary pollution.
Further, desulfurizing agent is provided between the outlet end of desulfurizing agent powder cabin 31 and the import for the blower 33 that dusts quantitatively to fill Set 32.By desulfurizing agent proportioning device and the blower cooperating that dusts, desulfurizing agent powder is quantitatively conveyed for desulfurizing tower, is avoided excessive Desulfurizing agent powder plays desulfurization effect and just falls desulfurization tower bottom and be delivered to desulfurization product storage chamber, wastes a large amount of desulfurizing agent Powder.
In conclusion the utility model provides a kind of circulating fluid bed desulfurization device, mainly for current Ceramics Enterprises The disposition of spray tower and kiln gas establishes stable flow field using venturi technology inside desulfurizing tower, and designs de- Sulphur ash circulating conveying channel is recirculating fluidized bed bed material without interruption --- Desulphurization.Desulfurizing tower be internally provided with flue gas throat, Flue gas deceleration area and smoke reaction area, mixed flue gas, which enters after desulfurizing tower, increases its flow velocity in the lesser flue gas throat of interior diameter, Rise always, by flue gas deceleration area, since its interior diameter expands, mixed flue gas speed and temperature decline, while with penetrating Desulfurizing agent powder generates strong rolling, collision and mixing, so that unsaturation vapor contained in flue gas is saturated and condenses rapidly Atomization is formed mostly and intensive small " drop ", is fully absorbed the desulfurizing agent powder of sulfur dioxide in flue gas gas and penetrating, is reached Simultaneously neutralization reaction occurs for effective heat transfer, mass transfer.When water deficient in flue gas, it can be pumped by multi-stage booster and increase the water in water tank The reaction zone of desulfurizing tower is pressed, is evacuated to, and realizes water atomization.
It is understood that for those of ordinary skills, can with technical solution according to the present utility model and The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement all should belong to appended by the utility model Scope of protection of the claims.

Claims (7)

1. a kind of circulating fluid bed desulfurization device, which is characterized in that including desulfurizing tower, dirt pocket, desulfurizing agent powder cabin, dust wind Machine, circulating fan, air-introduced machine, chimney;The gas inlet end of the desulfurizing tower is used to be respectively communicated with spray tower, the flue gas of kiln goes out Mouth end;Exhanst gas outlet is connected to the import of dirt pocket at the top of desulfurizing tower, and desulfurizing tower is set from the bottom to top above its gas inlet end It is equipped with flue gas throat, flue gas deceleration area, smoke reaction area;The interior diameter of the flue gas throat is smaller than smoke reaction area, flue gas The bottom-up increase of the interior diameter of deceleration area;The outlet end of the desulfurizing agent powder cabin is connected to the import for the blower that dusts, and dust wind The outlet of machine is in flue gas deceleration area;The gas vent of the dirt pocket is sequentially communicated in air-introduced machine, chimney;The circulated air Machine import, outlet respectively correspond the flue gas deceleration area of the outlet at bottom, desulfurizing tower that are connected to dirt pocket.
2. circulating fluid bed desulfurization device according to claim 1, which is characterized in that further include water tank, multi-stage booster pump; The inlet communication of the multi-stage booster pump is in water tank, and the outlet of multi-stage booster pump is in the smoke reaction area of desulfurizing tower.
3. circulating fluid bed desulfurization device according to claim 1, which is characterized in that if the dirt pocket include cabinet, Dry filter bag;The filter bag is vertically arranged at box house.
4. circulating fluid bed desulfurization device according to claim 3, which is characterized in that the box house is provided with water conservancy diversion Plate.
5. circulating fluid bed desulfurization device according to claim 3, which is characterized in that be provided in the cabinet and be located at filter The blowing device for being used to clean filter bag of bag top.
6. circulating fluid bed desulfurization device according to claim 1, which is characterized in that further include desulfurization product storage chamber; The outlet at bottom of the desulfurizing tower, the outlet at bottom of dirt pocket are respectively communicated in desulfurization product storage chamber.
7. circulating fluid bed desulfurization device according to claim 1, which is characterized in that the outlet end of the desulfurizing agent powder cabin Desulfurizing agent proportioning device is provided between import with the blower that dusts.
CN201821376037.4U 2018-08-24 2018-08-24 A kind of circulating fluid bed desulfurization device Active CN208990553U (en)

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CN201821376037.4U CN208990553U (en) 2018-08-24 2018-08-24 A kind of circulating fluid bed desulfurization device

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112228894A (en) * 2020-09-04 2021-01-15 福建澳林镁环保科技有限公司 High-speed desulphurization and cooling method for furnace gas
CN117679945A (en) * 2023-12-15 2024-03-12 南京诺禾机械制造有限公司 Circulating fluidized bed flue gas desulfurization device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112228894A (en) * 2020-09-04 2021-01-15 福建澳林镁环保科技有限公司 High-speed desulphurization and cooling method for furnace gas
CN117679945A (en) * 2023-12-15 2024-03-12 南京诺禾机械制造有限公司 Circulating fluidized bed flue gas desulfurization device

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