CN105498963A - Method for removing dust in water gas - Google Patents
Method for removing dust in water gas Download PDFInfo
- Publication number
- CN105498963A CN105498963A CN201510955643.6A CN201510955643A CN105498963A CN 105498963 A CN105498963 A CN 105498963A CN 201510955643 A CN201510955643 A CN 201510955643A CN 105498963 A CN105498963 A CN 105498963A
- Authority
- CN
- China
- Prior art keywords
- water
- tar
- gas
- dust
- removal methods
- Prior art date
- 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
Links
- 239000000428 dust Substances 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000012716 precipitator Substances 0.000 claims description 32
- 238000001556 precipitation Methods 0.000 claims description 31
- 239000003034 coal gas Substances 0.000 claims description 19
- 238000002309 gasification Methods 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 30
- 238000012360 testing method Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/025—Combinations of electrostatic separators, e.g. in parallel or in series, stacked separators or dry-wet separator combinations
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- Industrial Gases (AREA)
Abstract
The invention discloses a method for removing dust in water gas, relates to a dust removing method, and aims to solve the problems of complex device, long process, low dust removing efficiency and incapability of satisfying requirements of subsequent devices on dust and tar contents in a traditional method for removing dust and tar in the water gas. The method comprises the following steps: (1) the dust and the tar are removed by using a wet electric dust remover; and (2) the dust and the tar are removed by using a dry electric dust remover; and gasified water gas, with the dust and the tar removed by the dry electric dust remover, is sent to a gas cabinet device so that the method for removing the dust in the water gas is finished. A device used by the method is small in floor area and low in investment and operation costs; the method is short in process, simple in operation and high in dust removing efficiency; the removal rate of the dust and the tar in the water gas is 90-99%; and the device used by the method is high in stability, and has the consumption reduced. The invention can obtain the method for removing the dust in the water gas.
Description
Technical field
The present invention relates to a kind of dirt removal methods.
Background technology
Containing the dirt of various form in water-gas, the requirement of follow up device to dust and tar content can not be met.In existing removal water-gas, the device of dirt and tar is complicated, and long flow path, efficiency of dust collection is low, can not meet the requirement of follow up device to dust content, and can not reach the discharge of zero turbidity.
The dust of dust collector pole trapping, Water spray is adopted extremely to form water membrane in surface in dedusting, the dust be deposited on deduster is made to flow to the bottom of deduster and discharge together with water, the electric cleaner of this ash removal method is adopted to be called wet electrical dust precipitator, there is not the problem of dust secondary fly-up in this electric cleaner, but pole plate deashing discharge water can cause secondary pollution.
Trap the dust in flue gas in the dry state, be deposited on the dust on dedusting plate and be called dry electric precipitation device by the deduster of mechanical rapping cleaning dust.During this deduster rapping, dust is easily made to produce the problem of secondary fly-up.
Existing wet electrical dust precipitator and the dry electric precipitation device of being used alone all can only remove part dust in water-gas and tar, and the water-gas of remove portion dust and tar can not meet the requirement of follow up device to dust and tar content.
Summary of the invention
The device that the method that the object of the invention is to solve dust and tar in existing removal water-gas uses is complicated, long flow path, efficiency of dust collection is low, can not meet the problem of follow up device to the requirement of dust and tar content, and provide dirt removal methods in a kind of water-gas.
In a kind of water-gas, dirt removal methods is carried out according to the following steps:
One, wet electrical dust precipitator is used to carry out chalk dust removing and tar:
The water-gas of gasification enters into wet electrical dust precipitator through the import water seal of wet electrical dust precipitator and carries out chalk dust removing and tar, obtains the gasified water coal gas after wet electrical dust precipitator chalk dust removing and tar;
Two, dry electric precipitation device is used to carry out chalk dust removing and tar:
Gasified water coal gas after wet electrical dust precipitator chalk dust removing and tar enters into dry electric precipitation device through the outlet water seal of wet electrical dust precipitator and the import water seal of dry electric precipitation device and carries out chalk dust removing and tar, obtains the gasified water coal gas after dry electric precipitation device chalk dust removing and tar; Gasified water coal gas after dry electric precipitation device chalk dust removing and tar is delivered to gas cabinet assembly, namely completes dirt removal methods in a kind of water-gas.
Advantage of the present invention:
One, the present invention use plant area area little, investment and operating cost little;
Two, flow process of the present invention is short, simple to operate, and efficiency of dust collection is high, and in water-gas, the clearance of dust and tar is 90% ~ 99%;
Three, the device stability of the present invention's use is high, reduces consumption.
The present invention can obtain dirt removal methods in a kind of water-gas.
Detailed description of the invention
Detailed description of the invention one: present embodiment is that in a kind of water-gas, dirt removal methods is carried out according to the following steps:
One, wet electrical dust precipitator is used to carry out chalk dust removing and tar:
The water-gas of gasification enters into wet electrical dust precipitator through the import water seal of wet electrical dust precipitator and carries out chalk dust removing and tar, obtains the gasified water coal gas after wet electrical dust precipitator chalk dust removing and tar;
Two, dry electric precipitation device is used to carry out chalk dust removing and tar:
Gasified water coal gas after wet electrical dust precipitator chalk dust removing and tar enters into dry electric precipitation device through the outlet water seal of wet electrical dust precipitator and the import water seal of dry electric precipitation device and carries out chalk dust removing and tar, obtains the gasified water coal gas after dry electric precipitation device chalk dust removing and tar; Gasified water coal gas after dry electric precipitation device chalk dust removing and tar is delivered to gas cabinet assembly, namely completes dirt removal methods in a kind of water-gas.
The advantage of present embodiment:
One, present embodiment use plant area area little, investment and operating cost little;
Two, present embodiment flow process is short, simple to operate, and efficiency of dust collection is high, and in water-gas, the clearance of dust and tar is 90% ~ 99%;
Three, the device stability of present embodiment use is high, reduces consumption.
Present embodiment can obtain dirt removal methods in a kind of water-gas.
Detailed description of the invention two: present embodiment and detailed description of the invention one difference are: the pressure of the water-gas of the gasification described in step one is 0.006MPaG, and temperature is 40 DEG C.Other steps are identical with detailed description of the invention one.
Detailed description of the invention three: one of present embodiment and detailed description of the invention one or two difference is: the internal diameter of the wet electrical dust precipitator described in step one is 7600mm, height is 15000mm.Other steps are identical with detailed description of the invention one or two.
Detailed description of the invention four: one of present embodiment and detailed description of the invention one to three difference is: the internal diameter of the dry electric precipitation device described in step 2 is 5200mm, height is 15000mm.Other steps are identical with detailed description of the invention one to three.
Detailed description of the invention five: one of present embodiment and detailed description of the invention one to four difference is: the amount containing dust and tar in the water-gas of the gasification described in step one is 50mg/Nm
3.Other steps are identical with detailed description of the invention one to four.
Detailed description of the invention six: one of present embodiment and detailed description of the invention one to five difference is: the amount containing dust and tar in the gasified water coal gas after dry electric precipitation device chalk dust removing and tar described in step 2 is 0.5mg/Nm
3~ 5mg/Nm
3.Other steps are identical with detailed description of the invention one to five.
Detailed description of the invention seven: one of present embodiment and detailed description of the invention one to six difference is: containing 45.8%CO, 35.00%H in the water-gas of the gasification described in step one
2, 17.5%CO
2, 0.4%CH
4, 1.1%N
2, 0.2%O
2, 1500mg/Nm
3h
2s, 150mg/Nm
3organic sulfur and 50mg/Nm
3dust and tar.Other steps are identical with detailed description of the invention one to six.
Detailed description of the invention eight: one of present embodiment and detailed description of the invention one to seven difference is: the process tolerance per hour of the wet electrical dust precipitator described in step one is 220400 ~ 220450Nm
3.Other steps are identical with detailed description of the invention one to seven.
Detailed description of the invention nine: one of present embodiment and detailed description of the invention one to eight difference is: the process tolerance per hour of the dry electric precipitation device described in step 2 is 220400 ~ 220450Nm
3.Other steps are identical with detailed description of the invention one to eight.
Adopt following verification experimental verification beneficial effect of the present invention:
Test one: dirt removal methods in a kind of water-gas, carry out according to the following steps:
One, wet electrical dust precipitator is used to carry out chalk dust removing and tar:
The water-gas of gasification enters into wet electrical dust precipitator through the import water seal of wet electrical dust precipitator and carries out chalk dust removing and tar, obtains the gasified water coal gas after wet electrical dust precipitator chalk dust removing and tar;
Two, dry electric precipitation device is used to carry out chalk dust removing and tar:
Gasified water coal gas after wet electrical dust precipitator chalk dust removing and tar enters into dry electric precipitation device through the outlet water seal of wet electrical dust precipitator and the import water seal of dry electric precipitation device and carries out chalk dust removing and tar, obtains the gasified water coal gas after dry electric precipitation device chalk dust removing and tar; Gasified water coal gas after dry electric precipitation device chalk dust removing and tar is delivered to gas cabinet assembly, namely completes dirt removal methods in a kind of water-gas;
The pressure of the water-gas of the gasification described in step one is 0.006MPaG, and temperature is 40 DEG C;
The internal diameter of the wet electrical dust precipitator described in step one is 7600mm, and height is 15000mm;
The internal diameter of the dry electric precipitation device described in step 2 is 5200mm, and height is 15000mm;
Containing 45.8%CO, 35.00%H in the water-gas of the gasification described in step one
2, 17.5%CO
2, 0.4%CH
4, 1.1%N
2, 0.2%O
2, 1500mg/Nm
3h
2s, 150mg/Nm
3organic sulfur and 50mg/Nm
3dust and tar;
Wet electrical dust precipitator described in step one process tolerance per hour is 220442Nm
3;
Dry electric precipitation device described in step 2 process tolerance per hour is 220442Nm
3.
Testing the amount that a step 2 delivers to containing dust and tar in the gasified water coal gas after dry electric precipitation device chalk dust removing and tar of gas cabinet assembly is 0.5mg/Nm
3, in the water-gas of test one gasification, the removal efficiency of dust and tar is 99%.
Claims (9)
1. a dirt removal methods in water-gas, is characterized in that in a kind of water-gas, dirt removal methods is carried out according to the following steps:
One, wet electrical dust precipitator is used to carry out chalk dust removing and tar:
The water-gas of gasification enters into wet electrical dust precipitator through the import water seal of wet electrical dust precipitator and carries out chalk dust removing and tar, obtains the gasified water coal gas after wet electrical dust precipitator chalk dust removing and tar;
Two, dry electric precipitation device is used to carry out chalk dust removing and tar:
Gasified water coal gas after wet electrical dust precipitator chalk dust removing and tar enters into dry electric precipitation device through the outlet water seal of wet electrical dust precipitator and the import water seal of dry electric precipitation device and carries out chalk dust removing and tar, obtains the gasified water coal gas after dry electric precipitation device chalk dust removing and tar; Gasified water coal gas after dry electric precipitation device chalk dust removing and tar is delivered to gas cabinet assembly, namely completes dirt removal methods in a kind of water-gas.
2. dirt removal methods in a kind of water-gas according to claim 1, it is characterized in that the pressure of the water-gas of the gasification described in step one is 0.006MPaG, temperature is 40 DEG C.
3. dirt removal methods in a kind of water-gas according to claim 1, is characterized in that the internal diameter of the wet electrical dust precipitator described in step one is 7600mm, and height is 15000mm.
4. dirt removal methods in a kind of water-gas according to claim 1, is characterized in that the internal diameter of the dry electric precipitation device described in step 2 is 5200mm, and height is 15000mm.
5. dirt removal methods in a kind of water-gas according to claim 1, is characterized in that the amount containing dust and tar in the water-gas of the gasification described in step one is 50mg/Nm
3.
6. dirt removal methods in a kind of water-gas according to claim 1, is characterized in that the amount containing dust and tar in the gasified water coal gas after dry electric precipitation device chalk dust removing and tar described in step 2 is 0.5mg/Nm
3~ 5mg/Nm
3.
7. dirt removal methods in a kind of water-gas according to claim 1, is characterized in that in the water-gas of the gasification described in step one containing 45.8%CO, 35.00%H
2, 17.5%CO
2, 0.4%CH
4, 1.1%N
2, 0.2%O
2, 1500mg/Nm
3h
2s, 150mg/Nm
3organic sulfur and 50mg/Nm
3dust and tar.
8. dirt removal methods in a kind of water-gas according to claim 1, is characterized in that the wet electrical dust precipitator process tolerance per hour described in step one is 220400 ~ 220450Nm
3.
9. dirt removal methods in a kind of water-gas according to claim 1, is characterized in that the dry electric precipitation device process tolerance per hour described in step 2 is 220400 ~ 220450Nm
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510955643.6A CN105498963A (en) | 2015-12-16 | 2015-12-16 | Method for removing dust in water gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510955643.6A CN105498963A (en) | 2015-12-16 | 2015-12-16 | Method for removing dust in water gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105498963A true CN105498963A (en) | 2016-04-20 |
Family
ID=55707494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510955643.6A Pending CN105498963A (en) | 2015-12-16 | 2015-12-16 | Method for removing dust in water gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105498963A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508269A (en) * | 2002-12-20 | 2004-06-30 | 鞍山科技大学 | Wet and dry integrated blast furnace gas dust collector |
| CN201711219U (en) * | 2010-07-05 | 2011-01-19 | 山东山大能源环境有限公司 | Semi-moist type electrostatic dust collector |
| CN102899444A (en) * | 2012-10-26 | 2013-01-30 | 通化市五一环保科技股份有限公司 | System and method for treating converter flue gas |
| CN202786303U (en) * | 2012-08-08 | 2013-03-13 | 北京京诚泽宇能源环保工程技术有限公司 | Dry-wet mixed dust removal system for converter gas |
| CN203209177U (en) * | 2013-03-04 | 2013-09-25 | 中冶赛迪工程技术股份有限公司 | Wet type electrostatic precipitator for blast furnace gas |
| CN203222597U (en) * | 2013-04-16 | 2013-10-02 | 中冶赛迪工程技术股份有限公司 | Coal gas dust control device of rotary furnace |
| CN104789266A (en) * | 2015-03-23 | 2015-07-22 | 七台河宝泰隆煤化工股份有限公司 | Coal gas generating method |
| JP2015166090A (en) * | 2010-05-31 | 2015-09-24 | 三菱重工業株式会社 | Exhaust gas treatment system and exhaust gas treatment method |
-
2015
- 2015-12-16 CN CN201510955643.6A patent/CN105498963A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508269A (en) * | 2002-12-20 | 2004-06-30 | 鞍山科技大学 | Wet and dry integrated blast furnace gas dust collector |
| JP2015166090A (en) * | 2010-05-31 | 2015-09-24 | 三菱重工業株式会社 | Exhaust gas treatment system and exhaust gas treatment method |
| CN201711219U (en) * | 2010-07-05 | 2011-01-19 | 山东山大能源环境有限公司 | Semi-moist type electrostatic dust collector |
| CN202786303U (en) * | 2012-08-08 | 2013-03-13 | 北京京诚泽宇能源环保工程技术有限公司 | Dry-wet mixed dust removal system for converter gas |
| CN102899444A (en) * | 2012-10-26 | 2013-01-30 | 通化市五一环保科技股份有限公司 | System and method for treating converter flue gas |
| CN203209177U (en) * | 2013-03-04 | 2013-09-25 | 中冶赛迪工程技术股份有限公司 | Wet type electrostatic precipitator for blast furnace gas |
| CN203222597U (en) * | 2013-04-16 | 2013-10-02 | 中冶赛迪工程技术股份有限公司 | Coal gas dust control device of rotary furnace |
| CN104789266A (en) * | 2015-03-23 | 2015-07-22 | 七台河宝泰隆煤化工股份有限公司 | Coal gas generating method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160420 |