CN202173880U - Immersion type organic catalysis desulfurizing, denitrating and mercury-removing integrated device - Google Patents

Immersion type organic catalysis desulfurizing, denitrating and mercury-removing integrated device Download PDF

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Publication number
CN202173880U
CN202173880U CN201120249735XU CN201120249735U CN202173880U CN 202173880 U CN202173880 U CN 202173880U CN 201120249735X U CN201120249735X U CN 201120249735XU CN 201120249735 U CN201120249735 U CN 201120249735U CN 202173880 U CN202173880 U CN 202173880U
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China
Prior art keywords
reaction tower
storage tank
immersion
separator
coupled
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Expired - Fee Related
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CN201120249735XU
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Chinese (zh)
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张俊娥
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BEIJING AVIC TIANYE TECHNOLOGY Co Ltd
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BEIJING AVIC TIANYE TECHNOLOGY Co Ltd
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Abstract

The utility model relates to an immersion type organic catalysis desulfurizing, denitrating and mercury-removing integrated device. A cooling, dust-removing and de-fluorinating oxidator is coupled with an immersion type reaction tower in the device. The immersion type reaction tower is coupled with a chimney. A neutralizer storage tank is coupled with the immersion type reaction tower via a neutralizer delivery pump. The immersion type reaction tower is coupled to the input end of a separator via a mixed solution discharging pump and a filter. The first output end of the separator is connected with a salt solution storage tank. The second output end of the separator is directly coupled to the immersion type reaction tower. The salt solution storage tank is coupled to a crystallizing and pelleting device via a salt solution discharging pump. The integrated desulfurizing, denitrating and mercury-removing device of the utility model can be used for synthetically desulfurizing, denitrating and removing mercury in an integrated manner and ensuring efficiency at high level. The utility model can be used for synthetically desulfurizing, denitrating and removing mercury simultaneously with low energy consumption.

Description

Immersion organic catalysis desulfurization denitration demercuration integrated apparatus
Technical field
The utility model relates to a kind of immersion organic catalysis desulfurization denitration demercuration integrated apparatus, or rather, relates to a kind of desulfurization denitration demercuration integrated apparatus based on immersion organic catalysis method.
Background technology
The history of the existing last 100 years of external flue gas desulfurization and dedusting technology.Problems of dust is well solved already, and desulfur technology gets into climax from the seventies in 20th century.According to statistics, flue gas desulfurization technique has kind more than 200, can be divided into wet method, dry method, semi-dry desulfurization substantially, and wherein wet method is occupied an leading position always, for having dropped at present more than 90% of engineering.Denitration had become the elementary item of enterprise's control in recent years, and progressively made laws and standard.
In 12 planning, the atmosphere pollution aspect of attaching most importance to sulfur dioxide and nitrogen oxide:
A. electric pollution reduces discharging: the whole auxiliary construction desulphurization denitration of newly-built coal-fired unit facility, desulfuration efficiency reach 95% with, denitration efficiency reaches more than 80%; The coal-fired unit of desulfurization active service should not accelerate to eliminate or install the desulfurization facility, transformation not up to standard, and overall efficiency reaches 90%; Do not adopt low nitrogen burning technology or low nitrogen burning inefficiency to renovate; Single-machine capacity is more than 30 kilowatts, and the denitration transformation is implemented with the active service unit of other provincial capital's single-machine capacity more than 20 kilowatts in the east, and overall efficiency is more than 70%.Strengthen having put into operation the supervision of desulfurization, denitration facility.
B. accelerate non-electric key industry desulphurization denitration process: the steel sintering machine is implemented in full flue gas of sintering machine; Newly-built sintering machine is answered supporting installation desulphurization denitration facility; Strengthening the Industrial Stoves SO 2 from fume administers.
C. suiting measures to local conditions to carry out fire coal boiler fume administers: newly-built big-and-middle-sized coal-burning boiler should be installed the desulphurization denitration facility; Existing coal-burning boiler more than 35 tons is implemented flue gas desulfurization; The existing coal-burning boiler of east more than 35 tons should be installed the low nitrogen burning facility; Oil refining device, nonferrous smelting equipment, building materials kiln, coke oven etc. are installed the flue gas desulfurization facility; The recirculating fluidized bed facility should be installed online watch-dog, improves synthesis desulfurating efficient.
Planning according to 12, the monitoring of gas mercury and discharging are also wanted standard and concrete emission request are arranged.Constantly stepping up of comprehensive above environmental protection policy; Improvement for polluting flue gas will be carried out dust-removal and desulfurizing denitration and several requirements of demercuration at least; Along with the increasing of environmental protection dynamics, the efficient integrated treatment of these several kinds of pollutants will be that pendulum is in our the current greatest problem of facing.
Along with the increasing of environmental protection dynamics, to desulfuration efficiency require increasingly highly, desulfuration efficiency requires to more than 98%; Denitration is being carried out standard revise, whole thermoelectricity, iron and steel, chemical industry that the requirement of denitration has been expanded; And still do not have a kind of mode can carry out the integrated processing of desulfurization denitration demercuration very efficiently in the prior art, and guarantee very high efficient, desulphurization plant, denitration device, the isolated operation of demercuration equipment, energy consumption is high especially;
The utility model content
For addressing the above problem, designed the utility model.
The utility model is on the principle of conventional wet desulfur technology, to combine oxidizing process denitration principle; Catalysis method absorbs the principle and the hydromechanical principle of mercury; The optimization means structure can be applicable to the pollutant reaction in various nertralizers and the flue gas widely, than the more environmental protection of other desulfurating dust removing device for flue gas, practicality; And to combine dust-removal and desulfurizing denitration demercuration four big functions be one, comprehensive solution the problems referred to above that exist in the prior art.
The utility model provides a kind of immersion organic catalysis desulfurization denitration demercuration integrated apparatus; Said device comprises: chimney, demister, immersion reaction tower, separator, salt liquid storage tank, saline solution excavationg pump, cooling and dedusting defluorination oxidator, filter, crystallization granulation device, nertralizer storage tank, nertralizer delivery pump and mixed liquor excavationg pump; Wherein, Cooling and dedusting defluorination oxidator and the coupling of immersion reaction tower; Said immersion reaction tower is through demister and chimney coupling; The nertralizer storage tank is through the coupling of nertralizer delivery pump and said immersion reaction tower, and said immersion reaction tower is coupled to the input of separator, first output connection salt liquid storage tank of said separator through mixed liquor excavationg pump and filter; And second output of said separator couples directly to the immersion reaction tower, and said salt liquid storage tank is coupled to the crystallization granulation device through the saline solution excavationg pump.
Said device also comprises the accessory substance bagger, said accessory substance bagger and the coupling of said crystallization granulation device.
Be provided with aspiration tube in the said immersion reaction tower.
Immersion organic catalysis desulfurization denitration demercuration integrated apparatus according to the utility model provides can produce following technique effect at least:
1. adapt to the variation of flue gas, comprising the variation of exhaust gas volumn and flue-gas temperature;
2. good contact area and time of contact are arranged, and denitrification efficiency is high;
3. good dedusting effect has certain De bioxin removal effect;
4. remove other toxic gas, like hydrogen fluoride, hydrogen chloride etc.;
5. catalyst can adsorptive gaseous mercury, and demercuration effect is preferably arranged;
6. safeguard simply, do not stop up;
7. owing to cancelled powerful circulating pump, energy consumption is low, and the accessory substance quality is high, and favorable economic benefit is arranged.
Description of drawings
From purport and the preferred embodiment of use and the following description of accompanying drawing to explanation the utility model, above and other purpose, characteristics and the advantage of the utility model will be conspicuous, in the accompanying drawings:
Fig. 1 is to be the immersion organic catalysis desulfurization denitration demercuration integrated apparatus sketch map according to the utility model.
Among Fig. 1: 1, chimney; 2, demister; 3, immersion reaction tower; 4, separator; 5, salt liquid storage tank; 6, saline solution excavationg pump; 7, cooling and dedusting defluorination oxidator; 8, filter; 9, crystallization granulation device; 10, nertralizer storage tank; 11, nertralizer delivery pump; 12, mixed liquor excavationg pump; 13, accessory substance bagger.
The specific embodiment
Fig. 1 is to be the immersion organic catalysis desulfurization denitration demercuration integrated apparatus sketch map according to the utility model.
As shown in Figure 1, said immersion organic catalysis desulfurization denitration demercuration integrated apparatus can comprise with lower component: chimney 1, demister 2, immersion reaction tower 3, separator 4, salt liquid storage tank 5, saline solution excavationg pump 6, cooling and dedusting defluorination oxidator 7, filter 8, crystallization granulation device 9, nertralizer storage tank 10, nertralizer delivery pump 11, mixed liquor excavationg pump 12 and accessory substance bagger 13.Wherein, Cooling and dedusting defluorination oxidator 7 is coupled with immersion reaction tower 3; Said immersion reaction tower 3 is through demister 2 and chimney 1 coupling; Nertralizer storage tank 10 is through nertralizer delivery pump 11 and said immersion reaction tower 3 couplings, and said immersion reaction tower 3 one sides are through the input of mixed liquor excavationg pump 12 and filter 8 coupling separators 4, and first output of said separator 4 connects salt liquid storage tank 5; Said salt liquid storage tank 5 is coupled to crystallization granulation device 9 through saline solution excavationg pump 6, and said crystallization granulation device 9 is coupled to accessory substance bagger 13.In addition, said separator 4 also has second output of direct coupling immersion reaction tower 3.
Pending industrial smoke at first gets into cooling and dedusting defluorination oxidator 7; Flue gas gets into immersion reaction tower 3 along Way in and reacts; Nertralizer in this while nertralizer storage tank 10 injects immersion reaction towers 3 through nertralizer delivery pump 11; Flue gas and nertralizer and catalyst react, and reacted flue gas gets into demister 2, through chimney 1 discharging.Being delivered to filter 8 through mixed liquor excavationg pump 12 behind the mixed liquor reaction certain hour in the immersion reaction tower filters; Mixed liquor after the filtration separates in separator 4; The catalyst of separating is back to immersion reaction tower 3 and continues reaction, and the saline solution of separating gets into salt liquid storage tank 5, is delivered to crystallization granulation device 9 through saline solution excavationg pump 6; Get into accessory substance bagger 13 then, the pack outward transport.
According to above description, those skilled in the art can know, behind the flue gas process cooling and dedusting defluorination oxidation unit; At first get in the immersion reaction tower, the nertralizer delivery pump injects reaction tower slurry reaction section with the liquid in the nertralizer storage tank, through the aspiration tube in the reaction tower flue gas is blasted in the slurry reaction section; Inject organic catalyst in the slurries section; Fully catch sulfurous acid and nitrous acid and gaseous mercury, through contacting of flue gas and mixed liquor, at the tiny foam of conversion zone generation one deck; Fully promote the contact area and the time of contact of flue gas and mixed liquor, guaranteed denitrification efficiency.Clean flue gas is removed droplet through demister, by the chimney qualified discharge through behind the immersion reaction tower.
Reacted mixed solution gets into filter through the mixed liquor excavationg pump; Get into separator through filtering the back; Catalyst and sulfate are carried out physical separation, and the catalyst after the separation returns in the reaction tower, and the sulfate after the separation gets into the salt liquid storage tank; Through the saline solution excavationg pump saline solution is delivered to the crystallization granulation system, produces finished product accessory substance (chemical fertilizer or other industrial products) then.
Because the utility model has been cancelled the nozzle of spray process, so there is not the problem of nozzle repair and maintenance difficulty.In addition, the utility model has been cancelled powerful circulating pump, and energy consumption is lower.Because through the big mode of this contact area of air-blowing, improved the efficient of dedusting greatly, most of dioxins materials is present in the dust, so also removed part De dioxins materials simultaneously.Whole process has realized the removal of desulfurization denitration demercuration three big pollutants, and economic performance is good.
Although illustrated and described the preferred embodiment of the utility model, it is contemplated that, those skilled in the art can be in the spirit of accompanying claims and scope design to the various modifications of the utility model.

Claims (3)

1. immersion organic catalysis desulfurization denitration demercuration integrated apparatus is characterized in that said device comprises:
Chimney, demister, immersion reaction tower, separator, salt liquid storage tank, saline solution excavationg pump, cooling and dedusting defluorination oxidator, filter, crystallization granulation device, nertralizer storage tank, nertralizer delivery pump and mixed liquor excavationg pump; Wherein, Cooling and dedusting defluorination oxidator and the coupling of immersion reaction tower; Said immersion reaction tower is through demister and chimney coupling; The nertralizer storage tank is through the coupling of nertralizer delivery pump and said immersion reaction tower, and said immersion reaction tower is coupled to the input of separator, first output connection salt liquid storage tank of said separator through mixed liquor excavationg pump and filter; And second output of said separator couples directly to the immersion reaction tower, and said salt liquid storage tank is coupled to the crystallization granulation device through the saline solution excavationg pump.
2. device as claimed in claim 1 is characterized in that:
Said device also comprises the accessory substance bagger, said accessory substance bagger and the coupling of said crystallization granulation device.
3. install according to claim 1 or claim 2, it is characterized in that:
Be provided with aspiration tube in the said immersion reaction tower.
CN201120249735XU 2011-07-15 2011-07-15 Immersion type organic catalysis desulfurizing, denitrating and mercury-removing integrated device Expired - Fee Related CN202173880U (en)

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CN201120249735XU CN202173880U (en) 2011-07-15 2011-07-15 Immersion type organic catalysis desulfurizing, denitrating and mercury-removing integrated device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107281916A (en) * 2017-07-27 2017-10-24 南通海鹰机电集团有限公司 Desulphurization and denitration, demercuration integrated apparatus and its flue gas processing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107281916A (en) * 2017-07-27 2017-10-24 南通海鹰机电集团有限公司 Desulphurization and denitration, demercuration integrated apparatus and its flue gas processing method

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Granted publication date: 20120328

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