CN106861315B - High temperature membrane dust removal subassembly and high temperature membrane dust remover - Google Patents
High temperature membrane dust removal subassembly and high temperature membrane dust remover Download PDFInfo
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- CN106861315B CN106861315B CN201710126493.7A CN201710126493A CN106861315B CN 106861315 B CN106861315 B CN 106861315B CN 201710126493 A CN201710126493 A CN 201710126493A CN 106861315 B CN106861315 B CN 106861315B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4218—Influencing the heat transfer which act passively, e.g. isolations, heat sinks, cooling ribs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/10—Temperature control
- B01D2311/106—Cooling
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- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a high-temperature membrane dust removal assembly and a high-temperature membrane dust remover, aiming at the defect that in the prior art, when a cloth bag is adopted for removing dust from flue gas, the cloth bag is required to be cooled through water spraying, so that the cloth bag is dewed, and the dust remover cannot be used; the high-temperature film dust removal assembly and the high-temperature film dust remover provided by the invention have the advantages that the pipe body is divided into the first cavity and the second cavity by the dividing plate, smoke enters the first cavity and enters the second cavity after being filtered by the high-temperature film tube, the high-temperature film tube is high-temperature resistant, the smoke is not required to be cooled by water spraying, and the dust remover cannot be used due to the fact that the high-temperature smoke is saturated and condensed by cold water.
Description
Technical Field
The invention relates to a high-temperature film dust removal assembly and a high-temperature film dust remover.
Background
Can produce a large amount of flue gases at steelmaking converter steelmaking's in-process, and there are a large amount of dust and CO gas in the flue gas that produces, CO is the valuable energy, need to purify the back and retrieve the gas chamber and recycle, if direct emission can cause the pollution of air in the air, so will remove dust, generally adopt the sack to filter the flue gas among the prior art, however, because the temperature of flue gas is too high, and the high temperature resistance of sack is poor, so will adopt the mode of water spray cooling to reduce the temperature of flue gas to below 70 ℃, although the damage of sack has been avoided in the temperature reduction of flue gas like this, but, because the temperature of flue gas is too low, the water of spraying can't volatilize, can the dewfall on the sack like this and cause the dust remover to be out of use.
Disclosure of Invention
The invention aims to provide a high-temperature membrane dust removal assembly and a high-temperature membrane dust remover, aiming at the defect that in the prior art, when a cloth bag is adopted for removing dust from flue gas, the flue gas is cooled by water spray, so that the cloth bag is dewed, and the dust remover cannot be used.
The purpose of the invention is realized by the following technical scheme:
the invention discloses a high-temperature membrane dust removal assembly, which comprises a tube body, a partition plate and a high-temperature membrane tube, wherein the partition plate is arranged on the tube body; the high-temperature membrane tube is arranged in the through hole, the main body part of the high-temperature membrane tube is arranged in the first cavity serving as a dust air cavity, and the opening end of the high-temperature membrane tube is arranged in the second cavity serving as a clean air cavity;
furthermore, the partition plate is in a step shape, the through hole is formed in the step surface, and the main body part of the high-temperature membrane tube is positioned on the lower side of the step surface;
furthermore, the high-temperature film tubes are arranged in a single row or multiple rows, and the high-temperature film tubes in each row are arranged along the length direction of the step surface;
furthermore, the axis or the center line of the tube body is obliquely arranged with the step surface of the partition plate, and the high-temperature film tube is vertically arranged with the step surface;
furthermore, a support piece for supporting the partition plate is arranged in the pipe body, the support piece is a vaporization cooling pipe, and the vaporization cooling pipe is positioned in the dust air cavity;
furthermore, a supporting piece used for supporting the partition plate is arranged in the pipe body, the supporting piece is a vaporization cooling pipe, the vaporization cooling pipe is positioned below the step surface, the axis of the vaporization cooling pipe is arranged along the length direction of the step surface and positioned on at least one side of the high-temperature film pipe, and the vaporization cooling pipe is positioned in the dust air cavity;
furthermore, a nozzle is arranged above the opening end of each high-temperature film tube and connected with an air tube, and the opening end of each nozzle is opposite to the opening end of each high-temperature film tube.
The invention also discloses a high-temperature film dust collector, which comprises a smoke inlet pipe, a smoke outlet pipe, a pipe body and an ash bucket, wherein the high-temperature film dust collection assembly of any one of the preceding claims is adopted, the smoke inlet pipe is arranged at the upper end or the middle of the dust air cavity and communicated with the dust air cavity, the ash bucket is arranged at the lower end or the middle of the dust air cavity and communicated with the dust air cavity, and the smoke outlet pipe is arranged at the lower end or the middle of the clean air cavity and communicated with the clean air cavity;
the dust inlet pipe is communicated with the smoke inlet pipe through a dust air cavity of the uppermost high-temperature membrane dust removal assembly, the dust air cavity of the lowermost high-temperature membrane dust removal assembly is communicated with the dust hopper, and the adjacent high-temperature membrane dust removal assemblies are fixedly connected through a pipe body in a sealing manner;
furthermore, the tube body is obliquely arranged, and the axis of the high-temperature film tube is vertically arranged.
By adopting the high-temperature film dust removal assembly and the high-temperature film dust remover, the pipe body is divided into the first cavity and the second cavity by the dividing plate, the main body part of the high-temperature film pipe is arranged in the first cavity, the opening end of the high-temperature film pipe is arranged in the second cavity, smoke enters the first cavity, is filtered by the high-temperature film pipe and then enters the gas purification cavity, and the smoke does not need to be cooled by water spraying because the high-temperature film pipe is high-temperature resistant, so that the problem that the dust remover cannot be used due to the fact that the high-temperature smoke is saturated and condensed in cold water is solved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a high temperature membrane dust removal assembly of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of the high temperature film dust collector of the present invention;
FIG. 3 isbase:Sub>A schematic view of the connection structure and the positional relationship between the vaporization cooling tubes and the high temperature film tubes and the distribution of the vaporization cooling tubes as viewed in the direction A-A of FIG. 2;
FIG. 4 is a schematic structural diagram of an embodiment of a high-temperature film tube blowback ash removal anti-clogging device of a high-temperature film dust collector of the invention;
FIG. 5 is a schematic view of the connection structure of two high temperature film dust-collecting components of the high temperature film dust collector of the present invention.
Description of the reference numerals
1-a pipe body; 2-a partition plate; 3-high temperature membrane tube; 4-dust air chamber; 5-a clean air cavity; 6-a support member; 7-inspection opening; 8-sealing cover; 9-smoke inlet pipe; 10-discharging the smoke tube; 11-ash bucket; 20-step surface; 21-a nozzle; 22-trachea; 23-air bag.
Detailed Description
The invention is further described below with reference to specific examples:
as shown in fig. 1, a high-temperature membrane dust removal assembly comprises a tube body 1, a partition plate 2 and a high-temperature membrane tube 3; the partition plate 2 is arranged in the pipe body 1, the pipe body 1 is divided into a first cavity and a second cavity, a through hole is formed in the partition plate 2, the high-temperature film pipe is arranged in the through hole, the main body part of the high-temperature film pipe 3 is arranged in the first cavity, the open end of the high-temperature film pipe 3 is arranged in the second cavity, smoke enters the first cavity through the first cavity, dust particles mixed in the smoke are removed after the smoke enters the second cavity through the open end of the high-temperature film pipe 3 through the high-temperature film pipe 3, the first cavity is called a dust air cavity 4, the second cavity is called a clean air cavity 5, during operation, the smoke firstly enters the dust air cavity 4, the high-temperature film pipe 3 is hollow, a plurality of nanoscale through holes are formed in the side wall, the smoke can enter the high-temperature film pipe 3 through the through holes and then enters the clean air cavity 5 through the open end of the high-temperature film pipe 3, dust in the smoke cannot pass through the through holes and can be isolated in the dust air cavity 4, the effect of dust removal of the high-temperature smoke is achieved, preferably, an inspection port 7 is formed in the side wall of the pipe body 1, a sealing cover 8 is arranged on the inspection port 7, when a dust removal component is opened, and a maintenance person can repair the dust removal cover 8 can repair the high-removal component, and the maintenance person can enter the maintenance person in the pipe body 1. Preferably, the diameter of the opening end of the high temperature membrane tube 3 is larger than the diameter of the main body of the high temperature membrane tube 3, so that the high temperature membrane tube 3 can be conveniently fixed on the partition plate by inserting the main body of the high temperature membrane tube 3 into the through hole provided on the partition plate 2.
As shown in fig. 2 to 3, a supporting member 6 for supporting the partition plate 2 is disposed in the pipe body 1, and preferably, the supporting member 6 is an evaporation cooling pipe, a cooling medium such as water or cooling vapor is disposed in the evaporation cooling pipe, two ends of the evaporation cooling pipe are disposed outside the side wall of the pipe body 1, respectively, and the evaporation cooling pipe is disposed beside the through hole and located in the dust air chamber.
Preferably, the partition plate 2 is in a step shape, the through holes formed in the partition plate 2 are arranged on the steps, when the high-temperature membrane tubes are multiple, the through holes formed in the high-temperature membrane tubes are distributed along the length direction of the steps, the high-temperature membrane tubes 3 are arranged along the length direction of the steps, each step is provided with multiple high-temperature membrane tubes 3 which are longitudinally arranged at the same height in the tube body 1, so that the total number of the high-temperature membrane tubes in the tube body is increased, the filtering area of the dust remover is increased, the filtering effect on smoke is improved, preferably, the step surface 20 of the partition plate 2 and the axis of the tube body 1 are obliquely arranged, the axis of each high-temperature membrane tube 3 and the step surface 20 are vertically arranged, the opening end of each high-temperature membrane tube is upwards arranged, the axis of each high-temperature membrane tube 3 and the axis of the tube body 1 are obliquely arranged, the high-temperature membrane tubes 3 are obliquely arranged in the tube body one, the number of each section of the tube body can be increased under the condition that the step width and the inclination angle are not changed, the number of the high-temperature membrane tubes in the step is further increased, and the total filtering effect of the smoke can be further improved. More profitable effect is, the axis of high temperature membrane pipe 3 sets up with the axis slope of body one, and when the vertical setting of axis of high temperature membrane pipe 3, the axis of body one is the slope and sets up the state, can make the setting of the stack of multistage body like this, and under the condition that does not increase the height of whole dust remover, can prolong the length of whole dust remover body 1, improves dust removal effect. At this time, the axial direction of the vaporization cooling pipe is arranged along the length direction of the steps, and when a plurality of high temperature film tubes 3 are arranged on each step surface 20, that is, a plurality of through holes are arranged in the length direction of each step, the vaporization cooling pipe is arranged beside each through hole, so that each through hole is distributed along the length direction of the vaporization cooling pipe.
The flue gas entering the dust gas cavity 4 can be cooled through the vaporization cooling pipe, inconvenience caused by deformation of the pipe body 1 due to overhigh temperature of the flue gas is avoided, and high-temperature damage to a high-temperature film pipe can also be avoided. Preferably, the number of the cold water pipes is two, and the two cold water pipes are respectively arranged on two sides of the row of the high-temperature membrane pipes 3. The high-temperature film tube 3 is fixedly arranged in the tube body 1 through a partition plate 2 under the support of the vaporization cooling tube.
As shown in fig. 4, a nozzle 21 is arranged above the open end of each high temperature membrane tube 3, the nozzle 21 is connected with an air tube 22, the open end of the nozzle 21 faces the open end of the high temperature membrane tube 3, after long-time filtration, dust in flue gas can be hung or fall on the through hole of the high temperature membrane tube 3, air is blown out through the nozzle 21, and a back flushing effect is performed on dust, so that the flying dust can be separated from the through hole of the high temperature membrane tube 3, and the high temperature membrane tube 3 is prevented from being blocked.
As shown in FIG. 2 and FIG. 5, the present invention further provides a high temperature film dust collector, which comprises a smoke inlet pipe 9, a smoke outlet pipe 10, an ash bucket 14 and at least one high temperature film dust collecting component; the dust inlet pipe 9 is arranged at the upper end or the middle of the dust air cavity 4 and is communicated with the dust air cavity, the ash hopper 14 is arranged at the lower end or the middle of the dust air cavity 4 and is communicated with the dust air cavity, the smoke outlet pipe 10 is arranged at the lower end of the purified air cavity 5 and is communicated with the purified air cavity, the smoke enters the dust air cavity 4 through the smoke inlet pipe 9 and enters the purified air cavity 5 after being filtered through the high-temperature film pipe 3, the filtered dust falls into the ash hopper 14 to be collected, and the filtered smoke is finally discharged through the smoke outlet pipe 10.
Claims (4)
1. The high-temperature membrane dust removal assembly is characterized by comprising a tube body (1), a partition plate (2) and a high-temperature membrane tube (3); the partition plate (2) is arranged in the tube body (1) and divides the tube body (1) into a first cavity and a second cavity, a through hole is formed in the partition plate, the high-temperature film tube is arranged in the through hole, the main part of the high-temperature film tube (3) is arranged in the first cavity serving as the dust air cavity (4), the open end of the high-temperature film tube (3) is arranged in the second cavity serving as the clean air cavity (5), the partition plate (2) is in a step shape, the through hole is arranged on the step surface (20), the main part of the high-temperature film tube (3) is positioned on the lower side of the step surface, the high-temperature film tube is arranged in a single row or multiple rows, the high-temperature film tubes in each row are arranged along the length direction of the step surface, the axis or the center line of the tube body (1) is obliquely arranged with the step surface of the partition plate (2), and the high-temperature film tube (3) is perpendicular to the step surface; be provided with support piece (6) that are used for supporting division board (2) in body (1), support piece (6) are the vaporization cooling tube, the vaporization cooling tube is located the dirt gas intracavity, the vaporization cooling tube is located step face below, the axis of vaporization cooling tube sets up along step face length direction, and be located at least one side of high temperature membrane tube, the both ends of vaporization cooling tube set up respectively outside the lateral wall of body (1), the vaporization cooling tube sets up and is located the dirt gas intracavity on the next door of through-hole, under the support of vaporization cooling tube, high temperature membrane tube (3) are through division board (2) fixed setting in body (1).
2. A high-temperature membrane dust removal assembly as claimed in claim 1, wherein a nozzle (21) is arranged above the open end of each high-temperature membrane tube (3), an air tube (22) is connected with the nozzle, and the open end of the nozzle (21) is opposite to the open end of the high-temperature membrane tube (3).
3. A high-temperature film dust collector comprises a smoke inlet pipe (9), a smoke outlet pipe (10), a pipe body (1) and an ash bucket (14), and is characterized in that the high-temperature film dust collection assembly of any one of claims 1 to 2 is adopted, the smoke inlet pipe (9) is arranged at the upper end or the middle of a dust air cavity (4) and communicated with the dust air cavity, the ash bucket (14) is arranged at the lower end or the middle of the dust air cavity (4) and communicated with the dust air cavity, the smoke outlet pipe (10) is arranged at the lower end or the middle of a clean air cavity (5) and communicated with the clean air cavity, the pipe body is obliquely arranged, and the axis of the high-temperature film pipe is vertically arranged.
4. A high-temperature film dust collector as claimed in claim 3, comprising at least two high-temperature film dust collecting assemblies, wherein the dust air cavity of the uppermost high-temperature film dust collecting assembly is communicated with the smoke inlet pipe (9), the dust air cavity of the lowermost high-temperature film dust collecting assembly is communicated with the dust hopper, and the adjacent high-temperature film dust collecting assemblies are fixedly connected through the pipe body in a sealing manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126493.7A CN106861315B (en) | 2017-02-25 | 2017-02-25 | High temperature membrane dust removal subassembly and high temperature membrane dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126493.7A CN106861315B (en) | 2017-02-25 | 2017-02-25 | High temperature membrane dust removal subassembly and high temperature membrane dust remover |
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| Publication Number | Publication Date |
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| CN106861315A CN106861315A (en) | 2017-06-20 |
| CN106861315B true CN106861315B (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710126493.7A Active CN106861315B (en) | 2017-02-25 | 2017-02-25 | High temperature membrane dust removal subassembly and high temperature membrane dust remover |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107961616A (en) * | 2017-11-29 | 2018-04-27 | 德施普科技发展温州有限公司 | A kind of industrial dedusting device |
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