CN109628161B - Washing tower with built-in cyclone and air guide plate group - Google Patents
Washing tower with built-in cyclone and air guide plate group Download PDFInfo
- Publication number
- CN109628161B CN109628161B CN201910123453.6A CN201910123453A CN109628161B CN 109628161 B CN109628161 B CN 109628161B CN 201910123453 A CN201910123453 A CN 201910123453A CN 109628161 B CN109628161 B CN 109628161B
- Authority
- CN
- China
- Prior art keywords
- air guide
- synthetic gas
- cyclone
- guide plate
- tower
- 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.)
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- 238000005406 washing Methods 0.000 title claims abstract description 48
- 239000010797 grey water Substances 0.000 claims abstract description 30
- 241000736911 Turritella communis Species 0.000 claims abstract description 24
- 239000010866 blackwater Substances 0.000 claims abstract description 18
- 239000006260 foam Substances 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 18
- 238000003786 synthesis reaction Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- 230000001502 supplementing effect Effects 0.000 claims description 11
- 230000008676 import Effects 0.000 claims 2
- 239000003245 coal Substances 0.000 abstract description 14
- 238000009825 accumulation Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 description 8
- 238000002309 gasification Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005695 dehalogenation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/026—Dust removal by centrifugal forces
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/101—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids with water only
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Cyclones (AREA)
Abstract
The invention discloses a washing tower with a built-in cyclone and an air guide plate group, which comprises a washing tower shell, wherein an end socket is arranged at the top opening of the washing tower shell, a synthetic gas outlet is arranged at the top of the end socket, a synthetic gas inlet, a gray water outlet and a black water outlet are arranged on the side surface of the washing tower shell, a foam remover, a tower plate, a synthetic gas air guide pipe and a gray water tank are sequentially arranged in the washing tower shell from top to bottom, the synthetic gas air guide pipe is of a L-shaped structure, the cyclone is arranged at the bending position in the synthetic gas air guide pipe, the air guide plate group is arranged in the synthetic gas air guide pipe, wherein the air guide plate group is positioned below the cyclone, the upper end of the synthetic gas guide pipe is communicated with the synthetic gas inlet, and the washing tower has strong ash removal capability on synthetic gas and can effectively solve the problem that ash accumulation on the tower plate of the washing tower caused by high ash coal.
Description
Technical Field
The invention belongs to the technical field of energy and chemical industry, and relates to a washing tower with a built-in cyclone and an air guide sheet set.
Background
In recent years, the development of the coal chemical industry is rapid, and coal gasification technology is an important direction for clean and efficient utilization of coal as clean coal technology. However, the coal quality in different areas of China has large difference, and the ash content in the coal has important influence on the design of coal gasification process and the operation of ash removal equipment. The synthetic gas washing tower is used as key purifying equipment in the coal gasification process, and plays an important role in dehalogenation, dust removal and cooling of the synthetic gas. The dust removal effect of the scrubber is an important factor affecting the stable operation of the gasification device and downstream systems.
In the chemical production process, coal quality fluctuation or high ash content coal replacement often occurs, so that the ash removal load of the washing tower is gradually increased. When the ash content in the synthesis gas is larger than the ash removal capacity of the washing tower, ash accumulation and blockage of a tower plate of the washing tower are caused, and the stable operation of a downstream system is influenced by the water carried by the synthesis gas. In the conventional process, a cyclone separator is arranged in front of a washing tower to perform pre-ash removal, and in addition, the washing purified water supplementing quantity of a tower plate of the washing tower is required to be increased, so that the defects of long flow, large investment and high energy consumption exist.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the washing tower with the built-in cyclone and the air guide plate group, which has stronger ash removal capability on the synthetic gas and can effectively solve the problem of easy ash accumulation of the tower plate of the washing tower caused by high ash coal.
In order to achieve the purpose, the washing tower with the built-in cyclone and the air guide plate group comprises a washing tower shell, wherein a seal head is arranged at the top opening of the washing tower shell, a synthetic gas outlet is arranged at the top of the seal head, a synthetic gas inlet, a gray water outlet and a black water outlet are arranged on the side surface of the washing tower shell, a foam remover, a tower plate, a synthetic gas air guide pipe and a gray water tank are sequentially arranged in the washing tower shell from top to bottom, wherein the synthetic gas inlet is communicated with the inlet at the top of the synthetic gas air guide pipe, the lower end of the synthetic gas air guide pipe is inserted into the gray water tank, the gray water outlet is communicated with the side surface at the top of the gray water tank, one end of the black water guide is communicated with the bottom outlet of the gray water tank, the other end of the black water guide is penetrated out of the washing tower shell, and the black water outlet is communicated with the side surface outlet of the gray water tank;
the synthesis gas air duct is L-shaped, a cyclone is arranged at the bent position in the synthesis gas air duct, an air guide sheet group is arranged in the synthesis gas air duct, wherein the air guide sheet group is positioned below the cyclone, and the upper end of the synthesis gas air duct is communicated with the synthesis gas inlet.
The side surface of the washing tower shell is also provided with a process water supplementing port and a grey water inlet, wherein the process water supplementing port is positioned between the tower plate and the demister, and the grey water inlet is opposite to the tower plate.
The shell of the washing tower is a pressure vessel with the operating pressure of 0.1 Mpa-10 Mpa and the operating temperature of 20 ℃ to 500 ℃.
The tower plates are mechanically fixed with the washing tower shell, and the number of the tower plates is one or more.
The outer wall of the synthetic gas guide pipe is connected with the inner wall of the shell of the washing tower through a fixed lacing wire.
The number of the fixing lacing wires is more than or equal to 3.
The cyclone comprises a fixed ring and a plurality of cyclone plates which are fixed in the fixed ring and distributed along the circumferential direction in sequence, and the outer wall of the fixed ring is welded with the inner wall of the synthetic gas guide pipe.
The air guide plate group comprises a plurality of air guide plates, each air guide plate is divided into a plurality of layers from top to bottom, each air guide plate in each layer of air guide plates is distributed in sequence along the circumferential direction, each air guide plate is of an arc-surface sheet-shaped structure, and the circle centers corresponding to the air guide plates are all located on the axis of the synthetic gas guide pipe.
The air guide piece is welded on the inner wall of the synthetic gas guide pipe through the fixing piece.
The thickness of each air guide plate is 20mm-30mm, the distance between every two adjacent air guide plates is less than or equal to 20mm, and the number of the air guide plates is more than or equal to 2.
The invention has the following beneficial effects:
when the washing tower with the built-in cyclone and the air guide plate group is specifically operated, the cyclone for enhancing gas circulation and the air guide plate group for pre-ash removal are arranged in the synthetic gas guide pipe, so that large-particle solid ash is removed, the effective separation of the synthetic gas and the solid ash is realized, the purification effect of the washing tower on the synthetic gas is improved, the problem that ash is deposited on a tower plate of the washing tower and is easy to block is solved, the operation time of the device is prolonged, the water supplementing amount of water purified by the tower plate is reduced, the energy consumption is low, the ash removal efficiency is high, the whole gasification system can treat high ash coal types, the operation elasticity of a coal gasification process is improved, the process flow is simple, and the purification effect of the synthetic gas is good.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the cyclone 5 according to the present invention;
fig. 3 is a diagram showing a distribution of the air guide plate group 7 in the present invention.
The device comprises a washing tower shell 1, a sealing head 2, a foam remover 3, a tower plate 4, a cyclone 5, a synthetic gas guide pipe 6, a gas guide plate group 7, a fixed lacing wire 8, a synthetic gas outlet 9, a process water supplementing port 10, a grey water inlet 11, a synthetic gas inlet 12, a grey water outlet 13, a black water outlet 14, a black water guide shower 15, a fixed ring 51, a cyclone plate 52, a gas guide plate 71 and a fixed piece 72.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1, the washing tower with the built-in cyclone and air guide plate group comprises a washing tower shell 1, a sealing head 2 is arranged at the top opening of the washing tower shell 1, a synthetic gas outlet 9 is arranged at the top of the sealing head 2, a synthetic gas inlet 12, a grey water outlet 13 and a black water outlet 14 are arranged on the side surface of the washing tower shell 1, a foam remover 3, a tower plate 4, a synthetic gas air guide pipe 6 and a grey water pool are sequentially arranged in the washing tower shell 1 from top to bottom, wherein the synthetic gas inlet 12 is communicated with the inlet at the top of the synthetic gas air guide pipe 6, the lower end of the synthetic gas air guide pipe 6 is inserted into the grey water pool, the grey water outlet 13 is communicated with the side surface at the top of the grey water pool, one end of the black water guide spray 15 is communicated with the bottom outlet of the grey water pool, the other end of the black water guide spray 15 penetrates out of the washing tower shell 1, and the black water outlet 14 is communicated with the side surface outlet of the grey water pool; the synthetic gas air duct 6 is L-shaped, the cyclone 5 is arranged at the bent position in the synthetic gas air duct 6, the air guide sheet group 7 is arranged in the synthetic gas air duct 6, the air guide sheet group 7 is positioned below the cyclone 5, and the upper end of the synthetic gas air duct 6 is communicated with the synthetic gas inlet 12.
The side surface of the washing tower shell 1 is also provided with a process water supplementing port 10 and a grey water inlet 11, wherein the process water supplementing port 10 is positioned between the tower plate 4 and the demister 3, and the grey water inlet 11 is opposite to the tower plate 4; the washing tower shell 1 is a pressure vessel with the operating pressure of 0.1 Mpa-10 Mpa and the operating temperature of 20 ℃ to 500 ℃.
Specifically, the tray 4 is mechanically fixed with the washing tower shell 1, and the number of the tray 4 is one or more; the outer wall of the synthetic gas guide pipe 6 is connected with the inner wall of the washing tower shell 1 through fixing lacing wires 8, wherein the number of the fixing lacing wires 8 is more than or equal to 3.
Referring to fig. 2, the swirler 5 includes a fixing ring 51 and a plurality of swirl plates 52 fixed in the fixing ring 51 and distributed in sequence along the circumferential direction, and the outer wall of the fixing ring 51 is welded with the inner wall of the synthesis gas guide tube 6.
Referring to fig. 3, the air guide plate group 7 includes a plurality of air guide plates 71, and each air guide plate 71 is divided into a plurality of layers from top to bottom, wherein each air guide plate 71 in each layer of air guide plates 71 is distributed in turn along the circumferential direction, each air guide plate 71 is in a circular arc surface sheet structure, the circle center corresponding to each air guide plate 71 is located on the axis of the synthesis gas air guide pipe 6, wherein the air guide plates 71 are welded on the inner wall of the synthesis gas air guide pipe 6 through fixing pieces 72, the thickness of each air guide plate 71 is 20mm-30mm, the distance between two adjacent air guide plates 71 is less than or equal to 20mm, and the number of the air guide plates 71 is greater than or equal to 2.
The specific working process of the invention is as follows:
the ash-containing synthetic gas enters the synthetic gas air duct 6 through the synthetic gas inlet 12, is swirled downwards under the action of the swirler 5, and then is pre-dedusted by the air guide plate group 7, so that when the large-particle solid ash rotates along with the synthetic gas along the synthetic gas air duct 6, the large-particle solid ash is thrown towards the wall surface of the air guide plate group 7 by centrifugal force, and the solid ash is swirled downwards along the wall surface and the wall surface of the air guide plate group 7 to enter an ash pond due to different gas-solid inertias, so that most of the solid ash in the synthetic gas is removed into black water at the bottom of the ash pond, and the pre-dedusting effect is realized. The synthetic gas enters into the ash water at the bottom of the tower, is cooled and then reversely ascends, enters between the tower plates 4, then is washed by clean water entering through the process water supplementing port 10 and ash water entering through the ash water inlet 11, so that the residual fine ash is removed, and finally, foam is removed through the foam remover 3 and then is discharged through the synthetic gas outlet 9. The black water containing ash is discharged from the bottom of the tower through a black water outlet 14 and then enters a subsequent water treatment system.
The cyclone 5 and the air guide sheet group 7 are arranged, so that the synthesis gas and the solid ash are effectively separated, the purification effect of the washing tower on the synthesis gas is enhanced, the water supplementing amount of purified water of the tower plate 4 is reduced, the energy consumption is low, and the ash removal efficiency is high.
Claims (7)
1. The utility model provides a wash tower of built-in swirler and air guide plate group in area, a serial communication port, including wash tower casing (1), the open top of wash tower casing (1) is provided with head (2), the top of head (2) is provided with synthetic gas export (9), the side of wash tower casing (1) is provided with synthetic gas import (12), grey water export (13) and black water export (14), foam remover (3) has been set gradually from top to bottom in the wash tower casing (1), column plate (4), synthetic gas air duct (6) and grey pond, wherein, synthetic gas import (12) are linked together with the entry at synthetic gas air duct (6) top, the lower extreme of synthetic gas air duct (6) is inserted in grey water pond, grey water export (13) are linked together with the side at grey water pond top, one end of black water guide shower (15) is linked together with the bottom export in grey water pond, the other end of black water guide shower (15) wears out of wash tower casing (1), black water export (14) are linked together with the side export in grey water pond;
the synthesis gas air duct (6) is of a L-shaped structure, a cyclone (5) is arranged at a bending position in the synthesis gas air duct (6), an air guide sheet group (7) is arranged in the synthesis gas air duct (6), the air guide sheet group (7) is positioned below the cyclone (5), and the upper end of the synthesis gas air duct (6) is communicated with a synthesis gas inlet (12);
the cyclone (5) comprises a fixed ring (51) and a plurality of cyclone plates (52) which are fixed in the fixed ring (51) and are distributed in turn along the circumferential direction, and the outer wall of the fixed ring (51) is welded with the inner wall of the synthesis gas guide pipe (6);
the air guide plate group (7) comprises a plurality of air guide plates (71), each air guide plate (71) is divided into a plurality of layers from top to bottom, wherein each air guide plate (71) in each layer of air guide plates is distributed in sequence along the circumferential direction, each air guide plate (71) is in a circular arc surface sheet structure, and the circle center corresponding to each air guide plate (71) is positioned on the axis of the synthetic gas guide pipe (6);
the air guide piece (71) is welded on the inner wall of the synthetic gas guide pipe (6) through the fixing piece (72).
2. The washing tower with the built-in cyclone and the air guide plate group according to claim 1, wherein the side surface of the washing tower shell (1) is further provided with a process water supplementing port (10) and a grey water inlet (11), wherein the process water supplementing port (10) is positioned between the tower plate (4) and the demister (3), and the grey water inlet (11) is opposite to the tower plate (4).
3. The scrubber with built-in cyclone and air guide plate set as claimed in claim 1, wherein the scrubber shell (1) is a pressure vessel with an operating pressure of 0.1 Mpa-10 Mpa and an operating temperature of 20 ℃ to 500 ℃.
4. The scrubber tower with the built-in cyclone and air guide plate set according to claim 1, characterized in that the trays (4) are mechanically fixed with the scrubber tower shell (1), and the number of trays (4) is one or more.
5. The scrubber tower with the built-in cyclone and air guide plate set according to claim 1, characterized in that the outer wall of the synthetic gas guide pipe (6) is connected with the inner wall of the scrubber tower shell (1) through a fixed lacing wire (8).
6. The washing tower with the built-in cyclone and air guide plate group according to claim 5, wherein the number of the fixing lacing wires (8) is more than or equal to 3.
7. The washing tower with the built-in cyclone and the air guide plate group according to claim 1, wherein the thickness of each air guide plate (71) is 20mm-30mm, the distance between two adjacent air guide plates (71) is less than or equal to 20mm, and the number of the air guide plates (71) is more than or equal to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910123453.6A CN109628161B (en) | 2019-02-18 | 2019-02-18 | Washing tower with built-in cyclone and air guide plate group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910123453.6A CN109628161B (en) | 2019-02-18 | 2019-02-18 | Washing tower with built-in cyclone and air guide plate group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109628161A CN109628161A (en) | 2019-04-16 |
| CN109628161B true CN109628161B (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910123453.6A Active CN109628161B (en) | 2019-02-18 | 2019-02-18 | Washing tower with built-in cyclone and air guide plate group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109628161B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423908A (en) * | 2020-05-13 | 2020-07-17 | 北京航天迈未科技有限公司 | Gasification furnace containing synthetic gas chilling device and use method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3207779A1 (en) * | 1982-03-04 | 1983-09-08 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the treatment of water-containing condensate from the cooling of the crude gas of coal pressure gasification |
| CN102690689A (en) * | 2012-06-08 | 2012-09-26 | 神华集团有限责任公司 | Device and method for scrubbing and purifying coal gas |
| CN104403702A (en) * | 2014-11-24 | 2015-03-11 | 水煤浆气化及煤化工国家工程研究中心 | Dedusting device for synthetic gas |
| CN105779022A (en) * | 2016-03-10 | 2016-07-20 | 中国神华能源股份有限公司 | Cyclone separator and gas-liquid-solid separating system |
| CN106731247A (en) * | 2017-02-13 | 2017-05-31 | 中聚信海洋工程装备有限公司 | A kind of unhurried current sedimentation dirt pocket of oblique water conservancy diversion containing flying dust coal gas |
| CN209652258U (en) * | 2019-02-18 | 2019-11-19 | 中国华能集团清洁能源技术研究院有限公司 | Cyclone and the scrubbing tower of stator blade group built in a kind of band |
-
2019
- 2019-02-18 CN CN201910123453.6A patent/CN109628161B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3207779A1 (en) * | 1982-03-04 | 1983-09-08 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the treatment of water-containing condensate from the cooling of the crude gas of coal pressure gasification |
| CN102690689A (en) * | 2012-06-08 | 2012-09-26 | 神华集团有限责任公司 | Device and method for scrubbing and purifying coal gas |
| CN104403702A (en) * | 2014-11-24 | 2015-03-11 | 水煤浆气化及煤化工国家工程研究中心 | Dedusting device for synthetic gas |
| CN105779022A (en) * | 2016-03-10 | 2016-07-20 | 中国神华能源股份有限公司 | Cyclone separator and gas-liquid-solid separating system |
| CN106731247A (en) * | 2017-02-13 | 2017-05-31 | 中聚信海洋工程装备有限公司 | A kind of unhurried current sedimentation dirt pocket of oblique water conservancy diversion containing flying dust coal gas |
| CN209652258U (en) * | 2019-02-18 | 2019-11-19 | 中国华能集团清洁能源技术研究院有限公司 | Cyclone and the scrubbing tower of stator blade group built in a kind of band |
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| Publication number | Publication date |
|---|---|
| CN109628161A (en) | 2019-04-16 |
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