CN203417599U - Flue-gas desulfurization control device in power field - Google Patents

Flue-gas desulfurization control device in power field Download PDF

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Publication number
CN203417599U
CN203417599U CN201320526328.8U CN201320526328U CN203417599U CN 203417599 U CN203417599 U CN 203417599U CN 201320526328 U CN201320526328 U CN 201320526328U CN 203417599 U CN203417599 U CN 203417599U
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China
Prior art keywords
flue gas
desulfurization
flue
gas desulfurization
purifying tower
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Expired - Fee Related
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CN201320526328.8U
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Chinese (zh)
Inventor
李凌
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CHENGDU XINXIN INFORMATION TECHNOLOGY Co Ltd
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CHENGDU XINXIN INFORMATION TECHNOLOGY Co Ltd
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Priority to CN201320526328.8U priority Critical patent/CN203417599U/en
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Abstract

The utility model discloses a flue-gas desulfurization control device in the power field. The flue-gas desulfurization control device comprises an electrostatic dust collector (1), a desulfurization purifying tower (2), a cloth-bag dust collector (3), an induced draft fan (4) and a chimney (5) which are communicated in sequence, wherein the desulfurization purifying tower (2) is provided with a humidifying activator (6). The flue-gas desulfurization control device disclosed by the utility model has the advantages that flue gas is firstly conveyed into the electrostatic dust collector to carry dust collecting treatment, then the flue gas which is treated by primary and in-advanced dust collection of the electrostatic dust collector enters the desulfurization purifying tower (2) for desulfurization treatment, the desulfurized flue gas reenters the cloth-bag dust collector for further dust collection, and the flue gas reaching the emission standard after dust collection is exhausted to the atmosphere through the chimney, so that the whole desulfurization process of the flue gas is realized.

Description

Flue gas desulfurization control device in power domain
Technical field
The utility model relates to coal electricity flue gas desulfurization field, specifically refers to the flue gas desulfurization control device in power domain.
Background technology
Flue gas desulfurization is the technical way that thermal power plant controls sulfur dioxide (SO2) emissions, is also the current business desulfur technology of unique large-scale application in the world simultaneously, substantially can be divided into three classes: Wet Flue Gas Desulfurization Technique, semi-dry desulphurization technology and desulfurization by dry method.But the flue gas desulphurization technology that is applied to that has reached commercial Application level has more than 10 to plant, and is broadly divided into dry method and wet method.The shortcoming of wet process is that serious corrosion, equipment investment are large, operating cost is higher, water consumption is large and floor space is larger, should be for big-and-middle-sized unit or the high small unit of sulfur content; The advantage of dry method, semidry method is that investment and taking up an area economizes, but efficiency is generally lower than wet method, comparatively applicable to small unit or the lower medium-sized unit of sulfur content.
Flue gas desulfurization is an important indicator of coal electricity, and especially, for present increasingly serious environmental issue, the quality of its flue gas desulfur device directly affects the key factor of the no normal operation of coal electric energy.
Utility model content
The purpose of this utility model is to provide a kind of can guarantee that coal group of motors normally moves, and desulfuration efficiency is high, investment operating cost is low, water consumption is few, the flue gas desulfurization control device in the little power domain of floor space.
The utility model is achieved through the following technical solutions: the flue gas desulfurization control device in power domain, comprises connected successively electrostatic precipitator, desulfurizing and purifying tower, sack cleaner and air-introduced machine, chimney.Operation principle of the present utility model is that first flue gas enters electrostatic precipitator, the Main Function of electrostatic precipitator is the ashes utilizing in electrostatic absorption principle absorption flue gas, the dry ash of flue gas 85% left and right after electrostatic precipitator adsorption treatment is collected, flue gas after elementary pre-dedusting enters desulfurizing and purifying tower subsequently, the Main Function of cleaning and desulfurization tower is and spray humidification activation drying principles theoretical according to recirculating fluidized bed, adopt suspended pattern, make pulverized limestone and dry flying dust at tower inner suspension, iterative cycles, realize desulfurization with the abundant haptoreaction of sulfur dioxide in flue gas, because pulverized limestone is circulation suspended state at purifying column, therefore what guaranteed flue gas and solid particle evenly mixes and has enough holdup times, also just guaranteed fully carrying out of desulfurization chemical reaction, and then improved desulfuration efficiency.Flue gas after desulfurization enters sack cleaner again and carries out further dedusting, and the flue gas that reaches discharge standard after dedusting arrives atmosphere through smoke stack emission, so far completes whole flue gas desulfurization course.
Further, for effectively reducing calcium sulfur ratio and the desulphurization cost of whole desulfurizer, the mouth of described sack cleaner is provided with air flume and grey pump, in the dust of being collected by sack cleaner, still contain a large amount of unreacted pulverized limestones after dedusting, the ash of these limy powder is turned back to desulfurizing and purifying tower through air flume to be recycled, until pulverized limestone content seldom, is just transported to grey storehouse by it by storehouse pump in ash, complete the sweetening process of desulfurizer.
Further, described air flume be connected, its effect is to supplement fresh pulverized limestone to desulfurizing and purifying tower, improves desulfuration efficiency.
Further, in described desulfurizing and purifying tower, be provided with humidification activation device and be used for work of water sprinkling for better material moisture, described humidification activation device preferentially adopts two-stage humidification activator, the gas-liquid two-phase flow nozzle that to be provided with in order to compressed air in humidification activation device be medium is atomized into fine liquid particles by industry water, to improve desulfuration efficiency.For to avoid flue gas with water to affect the normal operation of sack cleaner, the operational factor of activator all should have strict control simultaneously.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model is by adopting circular suspension type semi-dry desulfurizer, making pulverized limestone is circulation suspended state at purifying column, thereby what guaranteed flue gas and solid particle evenly mixes and has enough holdup time, also just guaranteed fully carrying out of desulfurization chemical reaction, and then improved desulfuration efficiency, reduce operating cost.
(2) the utility model by being provided with humidification activation device in desulfurizing and purifying tower, and humidification activation device is two-stage humidification, is used for work of water sprinkling for better material moisture.The two-phase flow nozzle that activator is medium in order to compressed air is atomized into fine liquid particles by industry water, to improve desulfuration efficiency.
(3) the utility model arranges by the mouth at sack cleaner air flume and grey pump, having realized the ash that sack cleaner is collected to pulverized limestone turns back to desulfurizing and purifying tower through air flume and recycles, until until in ash pulverized limestone content is seldom, just it is transported to grey storehouse by grey pump, improve the service efficiency of pulverized limestone, thereby reduced operating cost.
(4) the utility model is roots blower by the blower fan adopting, and has improved the discharge efficiency of flue gas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1-electrostatic precipitator, 2-desulfurizing and purifying tower, 3-sack cleaner, 4-air-introduced machine, 5-chimney, 6-humidification activation device, 7-air flume, grey pump-8.
The specific embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
The process that the flue gas desulfurization of the present embodiment is controlled is mainly to carry out in desulfurizing and purifying tower 1, desulfurizing and purifying tower 1 adopts existing structure, as shown in Figure 1, first flue gas enters electrostatic precipitator 1 and carries out dust removal process, flue gas after the pre-dust removal process that just electrostatic precipitator is carried out enters subsequently desulfurizing and purifying tower 2 and carries out desulfurization processing, flue gas after desulfurization enters sack cleaner 3 again and carries out further dedusting, the flue gas that reaches discharge standard after dedusting is discharged into atmosphere through chimney 5, so far completes whole flue gas desulfurization course.
Embodiment 2:
The present embodiment is further provided with two-stage humidification activator at desulfurizing and purifying tower 2 and is used for the two-phase flow nozzle that work of water sprinkling for better material moisture activator is medium in order to compressed air industry water is atomized into fine liquid particles on the basis of embodiment 1, to improve desulfuration efficiency.Other parts of the present embodiment are identical with embodiment 1, repeat no more.
Embodiment 3:
The present embodiment is further set up air flume and grey pump on the basis of above-described embodiment, and be communicated with sack cleaner respectively, in the dust of collecting through sack cleaner, still contain a large amount of unreacted pulverized limestones, therefore by sack cleaner being collected to the ash of pulverized limestone, through air flume, turn back to desulfurizing and purifying tower and recycle, until until in ash pulverized limestone content is seldom, just it is transported to grey storehouse by grey pump, improved the service efficiency of pulverized limestone, reduce the calcium sulfur ratio of whole desulphurization system, thereby reduced operating cost.Other parts of the present embodiment are same as the previously described embodiments, repeat no more.In addition by the air-introduced machine in chimney breast setting, improved the discharge efficiency of flue gas.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, within all falling into protection domain of the present utility model.

Claims (5)

1. the flue gas desulfurization control device in power domain, it is characterized in that: comprise the electrostatic precipitator (1), desulfurizing and purifying tower (2), sack cleaner (3), air-introduced machine (4), the chimney (5) that are communicated with successively, and described desulfurizing and purifying tower (5) is provided with humidification activation device (6).
2. the flue gas desulfurization control device in power domain according to claim 1, is characterized in that: described sack cleaner is provided with air flume (7) and grey pump (8).
3. the flue gas desulfurization control device in power domain according to claim 1, is characterized in that: described humidification activation device is two-stage humidification activator.
4. according to the flue gas desulfurization control device in the power domain described in claim 1,2 or 3, it is characterized in that: in described humidification activation device (6), be provided with and take the gas-liquid two-phase flow nozzle that compressed air is medium.
5. the flue gas desulfurization control device in power domain according to claim 1, is characterized in that: described air-introduced machine is roots blower.
CN201320526328.8U 2013-08-28 2013-08-28 Flue-gas desulfurization control device in power field Expired - Fee Related CN203417599U (en)

Priority Applications (1)

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CN201320526328.8U CN203417599U (en) 2013-08-28 2013-08-28 Flue-gas desulfurization control device in power field

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Application Number Priority Date Filing Date Title
CN201320526328.8U CN203417599U (en) 2013-08-28 2013-08-28 Flue-gas desulfurization control device in power field

Publications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104353350A (en) * 2014-12-02 2015-02-18 成都华西堂投资有限公司 Smoke purification technology implemented based on adsorbent pretreatment
CN106086415A (en) * 2016-06-22 2016-11-09 江西自立环保科技有限公司 A kind of complete set of equipments refining noble metal from wiring board waste material and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104353350A (en) * 2014-12-02 2015-02-18 成都华西堂投资有限公司 Smoke purification technology implemented based on adsorbent pretreatment
CN104353350B (en) * 2014-12-02 2016-08-24 成都华西堂投资有限公司 The flue gas purifying technique realized based on absorbent pretreatment
CN106086415A (en) * 2016-06-22 2016-11-09 江西自立环保科技有限公司 A kind of complete set of equipments refining noble metal from wiring board waste material and method
CN106086415B (en) * 2016-06-22 2018-07-24 江西自立环保科技有限公司 The complete set of equipments and method of noble metal are refined in a kind of board waste material from circuit

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EXPY Termination of patent right or utility model
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Granted publication date: 20140205

Termination date: 20140828