CN106110797A - The blow-on fume environment protection of zinc sulfide concentrates fluidized roaster processes technique - Google Patents

The blow-on fume environment protection of zinc sulfide concentrates fluidized roaster processes technique Download PDF

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Publication number
CN106110797A
CN106110797A CN201610752801.2A CN201610752801A CN106110797A CN 106110797 A CN106110797 A CN 106110797A CN 201610752801 A CN201610752801 A CN 201610752801A CN 106110797 A CN106110797 A CN 106110797A
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CN
China
Prior art keywords
blow
flue gas
gas
zinc sulfide
smoke pipe
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610752801.2A
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Chinese (zh)
Inventor
周南方
千文建
李书楷
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NANDAN COUNTY NANFANG NON-FERROUS METALS Co Ltd
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NANDAN COUNTY NANFANG NON-FERROUS METALS Co Ltd
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Priority to CN201610752801.2A priority Critical patent/CN106110797A/en
Publication of CN106110797A publication Critical patent/CN106110797A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/14—Packed scrubbers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/604—Hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/025—Other waste gases from metallurgy plants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Abstract

The present invention relates to zinc sulfide concentrates fluidized roaster during intensification blow-on, produce the environment-friendly treating process of flue gas, comprise the following steps: after the flue gas that zinc sulfide concentrates fluidized roaster intensification blow-on produces enters waste heat boiler, cyclone dust extractor recovery heat and dedusting, be conveyed into purification one-level high energy scrubber by blow-on blower fan through cottrell bypass smoke pipe, gas colling tower dedusting is lowered the temperature, then delivers to tail gas absorber absorption oil smoke and SO through by-pass pipeline2After, blow-on flue gas is through tail gas funnel qualified discharge, it is to avoid and greatly reduce atmospheric pollution.

Description

The blow-on fume environment protection of zinc sulfide concentrates fluidized roaster processes technique
[technical field]
The blow-on fume environment protection that the present invention relates to zinc sulfide concentrates fluidized roaster processes technique
[background technology]
The traditional method of the blow-on fume treatment of zinc sulfide concentrates fluidized roaster is to set blow-on wind before cottrell Emptying process taken away by machine, and (some little fluidized roasters set relief valve emptying at furnace roof or set exhaust-valve row in heat boiler outlet Empty), after avoiding blow-on flue gas to be directly entered subsequent handling, cottrell and electrostatic precipitator are caused shadow by the oil smoke in flue gas Ring.Owing to blow-on flue gas is in addition to containing oil smoke, possibly together with a small amount of dirt, SO2, also air can be polluted after emptying.
[summary of the invention]
For the deficiencies in the prior art, produce when present invention aim to address zinc sulfide concentrates fluosolids roasting blow-on Flue gas subsequent treatment problem, reclaims the flue dust in blow-on flue gas, thoroughly solves the oil smoke in blow-on flue gas and SO2The air caused Pollute.
For achieving the above object, the present invention provides techniques below scheme:
The blow-on fume environment protection of zinc sulfide concentrates fluidized roaster processes technique, it is characterised in that comprise the following steps:
Step 1, blow-on flue gas is through blow-on blower fan and avoids cottrell from bypassing the cleaned of smoke pipe entrance next step Journey；
Step 2, the blow-on flue gas purified one-level high energy scrubber discharged by bypass smoke pipe in step 1 and filler cooling Tower spray purifies；
Step 3, the blow-on flue gas after step 2 purifies avoids electrostatic precipitator and dry suction is entered from bypass smoke pipe with conversion procedure Enter in the exhaust gas processing device of next step and process；
Step 4, the blow-on flue gas discharged by bypass smoke pipe in step 3 processes through tail gas absorber absorption.
Preferably, the purified one-level high energy scrubber such as a small amount of dirt in step 2 blow-on flue gas and filling cooling tower spray It is recycled.
Preferably, in step 4, the oil smoke in blow-on flue gas and trace SO2 etc. process through tail gas absorber alkali liquor absorption.
Preferably, comprise the following steps:
Step 1, blow-on flue gas is avoided cottrell through blow-on blower fan and is sent into cleaning procedure from bypass smoke pipe；Blow-on blower fan wind Amount 12000m3/h～50580m3/h, dust content～0.5g/m3, flue gas is containing SO2 amount～0.25g/m3, flue-gas temperature 200 ～350 DEG C；
Step 2, blow-on flue gas purified one-level high energy scrubber and filling cooling tower spray；One-level high energy scrubber and filling out Material cooling tower circulated sprinkling flow quantity 200m3/h～350m3/h；
Step 3, blow-on flue gas avoids electrostatic precipitator and dry suction enters exhaust gas processing device with conversion procedure from bypass smoke pipe；
Step 4, blow-on flue gas empties after tail gas absorber absorption processes；Tail gas absorber circulated sprinkling flow quantity 150m3/h～200m3/h；Exhaust emissions SO2 content ＜ 0.010g/m3 and smoke content ＜ 0.005g/m3, equal qualified discharge.
Preferably, comprise the following steps:
Step 1, blow-on flue gas is avoided cottrell through blow-on blower fan and is sent into cleaning procedure from bypass smoke pipe；Blow-on blower fan wind Amount 30000m3/h～150000m3/h, dust content～0.5g/m3, flue gas is containing SO2 amount～0.15g/m3, flue-gas temperature 200 ～350 DEG C；
Step 2, blow-on flue gas purified one-level high energy scrubber and filling cooling tower spray；One-level high energy scrubber and filling out Material cooling tower circulated sprinkling flow quantity 400m3/h～550m3/h；
Step 3, blow-on flue gas avoids electrostatic precipitator and dry suction enters exhaust gas processing device with conversion procedure from bypass smoke pipe；
Step 4, blow-on flue gas empties after tail gas absorber absorption processes；Tail gas absorber circulated sprinkling flow quantity 200m3/h～300m3/h；Exhaust emissions ＜ 0.005g/m3 and smoke content ＜ 0.005g/m3, equal qualified discharge.
It is an advantage of the current invention that on the basis of original technological process, increase by two bypass smoke pipes, one is that electricity gathers dust Device bypass smoke pipe, another is to increase purification gas colling tower and exports to the bypass smoke pipe of device for absorbing tail gas；Same in blow-on Time do not affect the intensification of conversion procedure converter；In blow-on flue gas, oil smoke is introduced into cottrell, electrostatic precipitator equipment, it is to avoid right Equipment damage；In blow-on flue gas, the purified filling cooling tower such as a small amount of dirt spray reclaims；Oil smoke in blow-on flue gas and trace SO2Process Deng through tail gas absorber alkali liquor absorption, blow-on flue gas qualified discharge, it is to avoid and greatly reduce atmospheric pollution.
[accompanying drawing explanation]
Accompanying drawing 1 is the process chart of the present invention.
[detailed description of the invention]
The following examples can help those skilled in the art that the present invention is more fully understood, but cannot be with any Mode limits the present invention.
Embodiment 1
The blow-on fume environment protection of zinc sulfide concentrates fluidized roaster processes technique, it is characterised in that comprise the following steps:
(1) blow-on flue gas is avoided cottrell through blow-on blower fan and is sent into cleaning procedure from bypass smoke pipe；Blow-on fan delivery 12000m3/ h～50580m3/ h, dust content～0.5g/m3, flue gas contains SO2Amount～0.25g/m3, flue-gas temperature 200～350 ℃。
(2) blow-on flue gas purified one-level high energy scrubber and filling cooling tower spray；One-level high energy scrubber and filler Cooling tower circulated sprinkling flow quantity 200m3/ h～350m3/h。
(3) blow-on flue gas avoids electrostatic precipitator and dry suction enters exhaust gas processing device with conversion procedure from bypass smoke pipe.
(4) blow-on flue gas empties after tail gas absorber absorption processes；Tail gas absorber circulated sprinkling flow quantity 150m3/h ～200m3/h；Exhaust emissions SO2Content ＜ 0.010g/m3With smoke content ＜ 0.005g/m3, equal qualified discharge.
Embodiment 2
The blow-on fume environment protection of zinc sulfide concentrates fluidized roaster processes technique, it is characterised in that comprise the following steps:
(1) blow-on flue gas is avoided cottrell through blow-on blower fan and is sent into cleaning procedure from bypass smoke pipe；Blow-on fan delivery 30000m3/ h～150000m3/ h, dust content～0.5g/m3, flue gas contains SO2Amount～0.15g/m3, flue-gas temperature 200～ 350℃。
(2) blow-on flue gas purified one-level high energy scrubber and filling cooling tower spray；One-level high energy scrubber and filler Cooling tower circulated sprinkling flow quantity 400m3/ h～550m3/h。
(3) blow-on flue gas avoids electrostatic precipitator and dry suction enters exhaust gas processing device with conversion procedure from bypass smoke pipe.
(4) blow-on flue gas empties after tail gas absorber absorption processes；Tail gas absorber circulated sprinkling flow quantity 200m3/h ～300m3/h；Exhaust emissions ＜ 0.005g/m3With smoke content ＜ 0.005g/m3, equal qualified discharge.
Although, the present invention is described in detail the most with a general description of the specific embodiments, but On the basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Cause This, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.

Claims (5)

1. the blow-on fume environment protection of zinc sulfide concentrates fluidized roaster processes technique, it is characterised in that comprise the following steps:
Step 1, blow-on flue gas is through blow-on blower fan and avoids the cottrell purification process from bypass smoke pipe entrance next step；
Step 2, the blow-on flue gas purified one-level high energy scrubber discharged by bypass smoke pipe in step 1 and filling cooling tower spray Pouring purifies；
Step 3, the blow-on flue gas after step 2 purifies avoids electrostatic precipitator and dry suction and conversion procedure from bypass smoke pipe enters The exhaust gas processing device of one step processes；
Step 4, the blow-on flue gas discharged by bypass smoke pipe in step 3 processes through tail gas absorber absorption.
The blow-on fume environment protection of zinc sulfide concentrates fluidized roaster the most according to claim 1 processes technique, its feature It is: the purified one-level high energy scrubbers such as a small amount of dirt in step 2 blow-on flue gas and filling cooling tower spray are recycled.
The blow-on fume environment protection of zinc sulfide concentrates fluidized roaster the most according to claim 1 processes technique, its feature It is: in step 4, the oil smoke in blow-on flue gas and trace SO2 etc. process through tail gas absorber alkali liquor absorption.
4. the blow-on fume environment protection of zinc sulfide concentrates fluidized roaster processes technique, it is characterised in that comprise the following steps:
Step 1, blow-on flue gas is avoided cottrell through blow-on blower fan and is sent into cleaning procedure from bypass smoke pipe；Blow-on fan delivery 12000m3/h～50580m3/h, dust content～0.5g/m3, flue gas containing SO2 amount～0.25g/m3, flue-gas temperature 200～ 350℃；
Step 2, blow-on flue gas purified one-level high energy scrubber and filling cooling tower spray；One-level high energy scrubber and filler are cold But tower circulated sprinkling flow quantity 200m3/h～350m3/h；
Step 3, blow-on flue gas avoids electrostatic precipitator and dry suction enters exhaust gas processing device with conversion procedure from bypass smoke pipe；
Step 4, blow-on flue gas empties after tail gas absorber absorption processes；Tail gas absorber circulated sprinkling flow quantity 150m3/h ～200m3/h；Exhaust emissions SO2 content ＜ 0.010g/m3 and smoke content ＜ 0.005g/m3, equal qualified discharge.
5. the blow-on fume environment protection of zinc sulfide concentrates fluidized roaster processes technique, it is characterised in that comprise the following steps:
Step 1, blow-on flue gas is avoided cottrell through blow-on blower fan and is sent into cleaning procedure from bypass smoke pipe；Blow-on fan delivery 30000m3/h～150000m3/h, dust content～0.5g/m3, flue gas containing SO2 amount～0.15g/m3, flue-gas temperature 200～ 350℃；
Step 2, blow-on flue gas purified one-level high energy scrubber and filling cooling tower spray；One-level high energy scrubber and filler are cold But tower circulated sprinkling flow quantity 400m3/h～550m3/h；
Step 3, blow-on flue gas avoids electrostatic precipitator and dry suction enters exhaust gas processing device with conversion procedure from bypass smoke pipe；
Step 4, blow-on flue gas empties after tail gas absorber absorption processes；Tail gas absorber circulated sprinkling flow quantity 200m3/h ～300m3/h；Exhaust emissions ＜ 0.005g/m3 and smoke content ＜ 0.005g/m3, equal qualified discharge.
CN201610752801.2A 2016-08-29 2016-08-29 The blow-on fume environment protection of zinc sulfide concentrates fluidized roaster processes technique Pending CN106110797A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107935022A (en) * 2017-12-08 2018-04-20 南丹县南方有色金属有限责任公司 A kind of zinc oxide desulfurization washing system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102069035A (en) * 2009-10-28 2011-05-25 阿尔斯托姆科技有限公司 Hybrid dust particulate collector system
CN104791818A (en) * 2015-04-17 2015-07-22 杭州兴环科技开发有限公司 Boiler flue gas waste heat recovery method and system for improving efficiency of electrostatic precipitation device
CN104949533A (en) * 2015-06-08 2015-09-30 许伟 Electric furnace zinc-smelting tail gas recovery system and control method thereof
CN205252861U (en) * 2015-12-07 2016-05-25 浙江海元环境科技有限公司 Glass flue gas of kiln pollutant is purifier in coordination
CN107754460A (en) * 2016-08-19 2018-03-06 张丽媛 The blow-on fume environment protection handling process of zinc sulfide concentrates fluidized roaster

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102069035A (en) * 2009-10-28 2011-05-25 阿尔斯托姆科技有限公司 Hybrid dust particulate collector system
CN104791818A (en) * 2015-04-17 2015-07-22 杭州兴环科技开发有限公司 Boiler flue gas waste heat recovery method and system for improving efficiency of electrostatic precipitation device
CN104949533A (en) * 2015-06-08 2015-09-30 许伟 Electric furnace zinc-smelting tail gas recovery system and control method thereof
CN205252861U (en) * 2015-12-07 2016-05-25 浙江海元环境科技有限公司 Glass flue gas of kiln pollutant is purifier in coordination
CN107754460A (en) * 2016-08-19 2018-03-06 张丽媛 The blow-on fume environment protection handling process of zinc sulfide concentrates fluidized roaster

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107935022A (en) * 2017-12-08 2018-04-20 南丹县南方有色金属有限责任公司 A kind of zinc oxide desulfurization washing system

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Application publication date: 20161116