CN109045876B - Compressed air injection filtering device - Google Patents
Compressed air injection filtering device Download PDFInfo
- Publication number
- CN109045876B CN109045876B CN201810737318.6A CN201810737318A CN109045876B CN 109045876 B CN109045876 B CN 109045876B CN 201810737318 A CN201810737318 A CN 201810737318A CN 109045876 B CN109045876 B CN 109045876B
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- China
- Prior art keywords
- air
- pipe sleeve
- annular
- inner pipe
- compressed air
- Prior art date
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- 238000002347 injection Methods 0.000 title claims abstract description 27
- 239000007924 injection Substances 0.000 title claims abstract description 27
- 238000001914 filtration Methods 0.000 title claims abstract description 25
- 239000007921 spray Substances 0.000 claims description 38
- 239000000428 dust Substances 0.000 claims description 28
- 230000002457 bidirectional effect Effects 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
-
- 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
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides an air-compressing injection filtering device, which comprises a two-way air-compressing air pump and a filtering device, wherein the two-way air-compressing air pump comprises an inner pipe sleeve, an outer pipe sleeve and a compressed air pipeline system, two annular closed spaces are formed between the inner pipe sleeve and the outer pipe sleeve, the two annular closed spaces are respectively a first annular air-compressing chamber and a second annular air-compressing chamber, a group of first injection holes are formed in the pipe wall corresponding to the inner pipe sleeve and the first annular air-compressing chamber, a group of second injection holes are formed in the pipe wall corresponding to the inner pipe sleeve and the second annular air-compressing chamber, the compressed air pipeline system comprises a first pipeline and a second pipeline for respectively providing compressed air for the first annular air-compressing chamber and the second annular air-compressing chamber, the filtering device comprises a shell and a filtering barrel positioned in the shell, the filtering barrel comprises a filtering barrel framework and a filtering medium, one end of the inner pipe sleeve and the outer pipe sleeve are both positioned in the filtering barrel.
Description
Technical Field
The invention relates to the field of filtering devices, in particular to a compressed air injection filtering device.
Background
At present, because gas exists in dust-containing airflow, a fan with an impeller cannot be adopted for exhausting, and electrical equipment must meet the specification, the dust-settling method is basically wet dust-settling, such as orifice spray dust-settling, water jet air-exhausting wet dust-settling, air-compressing jet wet dust-settling and the like.
Because of the wetting effect of water, wet dust removal equipment has higher dust removal efficiency and small equipment volume, but the existence of water also brings two major problems: (1) water is accumulated on a working surface, so that inconvenience is brought to roadway construction; (2) Wet ash adheres to the inner wall surface, so that the dust remover is blocked, and the normal operation of the dust remover and the performance of the dust remover are affected.
To solve this problem, dry dust removal technology is an important development direction, and among them, a filter type dust remover is preferred.
However, the conventional bag-type dust remover adopts a fan to exhaust air and an electromagnetic valve to control compressed air to blow back for ash removal, so that the system is complex and huge, and the dust removal of gas-containing air flow in the drilling process is not met from the safety point of view because of friction of a fan impeller, spark generated by the electromagnetic valve and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an air compression injection filtering device, which realizes dust-containing air flow dry filtering by air extraction and back blowing through a two-way air extractor, and solves the problem of dust pollution in the air compression slag discharge drilling process.
The present invention achieves the above technical object by the following means.
The air-compressing injection filtering device comprises a two-way air-compressing air pump and a filtering device;
The bidirectional air compressor air pump comprises an inner pipe sleeve, an outer pipe sleeve and a compressed air pipeline system, wherein two independent annular closed spaces are formed between the outer wall of the inner pipe sleeve and the inner wall of the outer pipe sleeve, namely a first annular air compressing chamber and a second annular air compressing chamber, a group of first injection holes are formed in the pipe wall of the inner pipe sleeve corresponding to the first annular air compressing chamber, the first injection holes are communicated with the inner cavity of the inner pipe sleeve and the first annular air compressing chamber, a group of second injection holes are formed in the pipe wall of the inner pipe sleeve corresponding to the second annular air compressing chamber, and the second injection holes are communicated with the inner cavity of the inner pipe sleeve and the second annular air compressing chamber;
The compressed air line system includes a first line for providing compressed air to a first annular plenum and a second line for providing compressed air to a second annular plenum;
The filter device comprises a shell and a filter cartridge arranged in the shell, wherein the filter cartridge comprises a filter cartridge framework and a filter medium, the filter medium is in a pocket shape with one end open and the other end closed, the filter medium is sleeved on the filter cartridge framework, the open end of the filter cartridge is fixed on the side wall of the shell, which is provided with a mounting opening, the bidirectional compressor air pump is arranged at the mounting opening, one end of the inner pipe sleeve and the outer pipe sleeve are both positioned in the filter cartridge, and one port of the inner pipe sleeve is opposite to the air inlet.
Preferably, a first valve is arranged on the first pipeline, and a second valve is arranged on the second pipeline.
Preferably, the filter cartridge framework is made of steel wire mesh or steel bar brackets.
Preferably, the bottom of the housing is provided with a dust storage drawer which is movable relative to the housing to withdraw from the bottom of the housing to unload dust.
Preferably, the number of the first spray holes and the number of the second spray holes are not less than 3.
Preferably, the plurality of first spray holes are uniformly distributed in the circumferential direction around the axis of the inner sleeve, and the plurality of second spray holes are uniformly distributed in the circumferential direction around the axis of the inner sleeve.
Preferably, the first spray hole and the second spray hole are straight holes, are inclined relative to the radial direction of the inner pipe sleeve, and face the center of the inner pipe sleeve.
Preferably, the first spray hole and the second spray hole are respectively provided with a spray pipe, and the spray pipes are tapered, diffuse or convergent.
Preferably, the filter medium is an activated carbon filter screen.
The invention has the beneficial effects that:
1) The invention realizes the dry filtration of dust-containing air flow by the air suction and back blowing of the two-way air compressor, does not consume water, does not have the phenomenon of muddy water on the working surface, and eliminates the phenomenon that the traditional wet dust remover blocks the system pipeline and the dust remover due to the sticking of wet dust.
2) The bidirectional air compressor air pump is provided with two annular air pressure chambers, and can select air pumping or air suction only by controlling compressed air to flow to one of the annular air pressure chambers, and the first spray holes and the second spray holes are inclined, so that the friction resistance of air flow is greatly reduced.
3) The invention only comprises the bidirectional air compressor and the filtering device, has simple structure, easy manufacture and small occupied space, does not need to use electrical equipment, is suitable for dust removal of gas containing gas, and is safe and reliable.
Drawings
Fig. 1 is a schematic structural diagram of a compressed air injection filtering device according to the present invention.
In the figure: 1-compressed air, 2-compressed air pipeline system, 3-second valve, 4-first valve, 5-mounting port, 6-two-way air compressor, 603-first annular plenum, 604-second annular plenum, 605-first spray hole, 606-second spray hole 7-filter device, 701-shell, 702-ash storage drawer, 8-filter medium fastener, 9-filter cartridge framework, 10-filter medium and 11-air inlet.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments, but the scope of the invention is not limited thereto.
As shown in fig. 1, the air injection filtering device of the present invention comprises a bidirectional air compressor 6 and a filtering device 7, wherein the bidirectional air compressor 6 comprises an inner pipe sleeve 601, an outer pipe sleeve 602 and a compressed air pipeline system 2, two independent annular closed spaces are formed between the outer wall of the inner pipe sleeve 601 and the inner wall of the outer pipe sleeve 602, a first annular air pressing chamber 603 and a second annular air pressing chamber 604 are respectively formed, a group of first injection holes 605 are formed in the pipe wall of the inner pipe sleeve 601 corresponding to the first annular air pressing chamber 603, the first injection holes 605 are communicated with the inner cavity of the inner pipe sleeve 601 and the first annular air pressing chamber 603, a group of second injection holes 606 are formed in the pipe wall of the inner pipe sleeve 601 corresponding to the second annular air pressing chamber 604, and the second injection holes 606 are communicated with the inner cavity of the inner pipe sleeve 601 and the second annular air pressing chamber 604.
The number of the first spray holes 605 and the number of the second spray holes 606 are not less than 3, a plurality of the first spray holes 605 are uniformly distributed along the circumferential direction by taking the axis of the inner pipe sleeve 601 as the center, and a plurality of the second spray holes 606 are uniformly distributed along the circumferential direction by taking the axis of the inner pipe sleeve 601 as the center. The first jet holes 605 and the second jet holes 606 are straight holes, are inclined relative to the radial direction of the inner pipe sleeve 601, face the center of the inner pipe sleeve 601, and suck gas through the injection effect of high-speed jet air flow. The first spray hole 605 and the second spray hole 606 are internally provided with spray pipes, the spray pipes are tapered, diffuse or scaled, and the number of the first spray hole 605 and the second spray hole 606 is set according to different air suction and air suction effects, so that different suction requirements can be met.
The filter device 7 comprises a housing 701 and a filter cartridge located in the housing 701, the housing 701 being provided with front and rear, left and right, upper and lower side panels, the front panel being provided with a mounting opening 5, the rear panel being provided with an inlet for a dust-laden air stream 11, the lower panel being provided with a dust storage drawer 702, the dust storage drawer 702 being movable relative to the housing 701 so as to be withdrawn from the bottom of the housing 701 for unloading dust.
The compressed air line system 2 comprises a first line for supplying compressed air to the first annular plenum 603 and a second line for supplying compressed air to the second annular plenum 604; the first pipeline is provided with a first valve 4, and the second pipeline is provided with a second valve 3. The compressed air 5 is controlled by the second valve 3 and the first valve 4, so that the bidirectional air compressor and the air extractor 6 form air extraction functions in different directions.
The filter cartridge comprises a filter cartridge framework 9 and a filter medium 10, wherein the filter cartridge framework 9 is fixed on the inner side surface of the front panel of the shell, and the filter cartridge framework 9 is a section of open cylinder body formed by steel wire gauze or light round steel. The filter medium 10 is in a pocket shape with one end open and the other end closed, is sleeved on the filter cartridge framework 9, and is fixed at the open end by a fixing medium fastener 8.
The bidirectional air compressor air extractor 6 is installed at the installation port 5, one end of the inner pipe sleeve 601 and the outer pipe sleeve 602 are both positioned in the filter cartridge, and one port of the inner pipe sleeve 601 is opposite to the air inlet 11.
The working principle of the invention is as follows:
Opening the second valve 3, closing the first valve 4, enabling the compressed air 1 to enter the second annular air pressing chamber 604 through the second pipeline of the compressed air pipeline system 2 and the valve 3, then spraying through the second spray holes 606, sucking the air flow in the filter cartridge by the two-way air compressor 6 under the injection effect of the high-speed spraying air flow, enabling the dust-containing air flow entering the shell 701 to flow to the outer surface of the filter medium 10 through the air inlet 11, enabling the clean air flow to permeate into the filter cartridge through the gap of the filter medium 10 under the action of differential pressure between the inside and the outside, and enabling dust to remain on the outer surface of the filter medium 10; as the filtration time increases, the dust accumulation increases and the resistance of the filter cartridge increases.
Similarly, the first valve 4 is opened, the second valve 3 is closed, compressed air 1 enters the first annular compressed air chamber 603 through the first pipeline of the compressed air pipeline system 2 and enters the first annular compressed air chamber 603 through the valve 4, then is sprayed through the first spray holes 605, under the injection effect of high-speed jet air flow, the two-way air compressor 6 sucks outside clean air flow to send into the filter cartridge, at the moment, the clean high-speed air flow sent into the filter cartridge impacts the filter medium 10, dust deposited on the outer surface of the filter medium 10 is shaken off, particles with larger particle sizes fall into the ash storage drawer 702 under the shell 701, and the ash storage drawer 702 can be pulled out at regular time for cleaning. When the ash is removed, the first valve 4 can be opened and closed in a clearance mode, the ventilation time is about 3 seconds each time, pulse airflow is formed, and the ash removal and secondary dust pollution are small.
Thus, through the switching on/off of the second valve 3 and the first valve 4, the bidirectional switching air extraction of the bidirectional air compressor 6 is realized, and the dry purification of the gas-containing air flow is completed.
The examples are preferred embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present invention are within the scope of the present invention.
Claims (6)
1. The air compression injection filtering device is characterized by comprising a bidirectional air compressor (6) and a filtering device (7);
The bidirectional air compressor air extractor (6) comprises an inner pipe sleeve (601), an outer pipe sleeve (602) and a compressed air pipeline system (2), two independent annular closed spaces are formed between the outer wall of the inner pipe sleeve (601) and the inner wall of the outer pipe sleeve (602), a first annular air compressing chamber (603) and a second annular air compressing chamber (604) are respectively formed, a group of first spray holes (605) are formed in the pipe wall of the inner pipe sleeve (601) corresponding to the first annular air compressing chamber (603), the first spray holes (605) are communicated with the inner cavity of the inner pipe sleeve (601) and the first annular air compressing chamber (603), a group of second spray holes (606) are formed in the pipe wall of the inner pipe sleeve (601) corresponding to the second annular air compressing chamber (604), and the number of the first spray holes (605) and the number of the second spray holes (606) are not less than 3;
The compressed air pipeline system (2) comprises a first pipeline for supplying compressed air to the first annular plenum (603) and a second pipeline for supplying compressed air to the second annular plenum (604), wherein a first valve (4) is arranged on the first pipeline, and a second valve (3) is arranged on the second pipeline;
the filter device comprises a shell (701) and a filter cartridge arranged in the shell (701), wherein the filter cartridge comprises a filter cartridge framework (9) and a filter medium (10), the filter medium (10) is in a pocket shape with one end open and the other end closed, the filter medium (10) is sleeved on the filter cartridge framework (9), the open end of the filter cartridge is fixed on the side wall of the shell (701) provided with an installation opening (5), the bidirectional compressor air pump (6) is installed at the installation opening (5), one end of the inner tube sleeve (601) and the outer tube sleeve (602) are both arranged in the filter cartridge, and one end of the inner tube sleeve (601) is opposite to the air inlet (11).
2. The compressed air injection filter device according to claim 1, wherein the filter cartridge framework (9) is made of steel wire mesh or steel bar brackets.
3. The air injection filter device according to claim 1, wherein the bottom of the housing (701) is provided with an ash storage drawer (702), the ash storage drawer (702) being movable relative to the housing (701) to withdraw from the bottom of the housing (701) for unloading dust.
4. The compressed air injection filtering apparatus according to claim 1, wherein the plurality of first spray holes (605) are uniformly distributed in the circumferential direction around the axis of the inner tube sleeve (601), and the plurality of second spray holes (606) are uniformly distributed in the circumferential direction around the axis of the inner tube sleeve (601).
5. The air injection filter device according to claim 1, wherein the first jet holes (605) and the second jet holes (606) are straight holes, are inclined relative to the radial direction of the inner pipe sleeve (601), and are oriented toward the center of the inner pipe sleeve (601).
6. The air injection filter device according to claim 5, wherein the first spray hole (605) and the second spray hole (606) are respectively provided with a spray pipe, and the spray pipes are tapered, diffuse or scaled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810737318.6A CN109045876B (en) | 2018-07-06 | 2018-07-06 | Compressed air injection filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810737318.6A CN109045876B (en) | 2018-07-06 | 2018-07-06 | Compressed air injection filtering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109045876A CN109045876A (en) | 2018-12-21 |
| CN109045876B true CN109045876B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810737318.6A Active CN109045876B (en) | 2018-07-06 | 2018-07-06 | Compressed air injection filtering device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109045876B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799210B (en) * | 2018-07-06 | 2024-05-14 | 江苏大学 | Two-way air extractor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107397501A (en) * | 2017-09-05 | 2017-11-28 | 浙江杭真能源科技股份有限公司 | Spray vacuum type dust exhaust apparatus and its method of work |
| CN208727016U (en) * | 2018-07-06 | 2019-04-12 | 江苏大学 | One kind is calmed the anger injection filter device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0819608D0 (en) * | 2008-10-24 | 2008-12-03 | Mosen Ltd | Improved tunnel ventilation device |
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2018
- 2018-07-06 CN CN201810737318.6A patent/CN109045876B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107397501A (en) * | 2017-09-05 | 2017-11-28 | 浙江杭真能源科技股份有限公司 | Spray vacuum type dust exhaust apparatus and its method of work |
| CN208727016U (en) * | 2018-07-06 | 2019-04-12 | 江苏大学 | One kind is calmed the anger injection filter device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109045876A (en) | 2018-12-21 |
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