CN112604404B - Energy-saving safe pulse bag-type dust collector - Google Patents
Energy-saving safe pulse bag-type dust collector Download PDFInfo
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- CN112604404B CN112604404B CN202011505620.2A CN202011505620A CN112604404B CN 112604404 B CN112604404 B CN 112604404B CN 202011505620 A CN202011505620 A CN 202011505620A CN 112604404 B CN112604404 B CN 112604404B
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- air
- pipe
- sleeve
- dust
- dust remover
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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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/06—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat
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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
-
- 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
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
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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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
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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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
Abstract
The invention provides an energy-saving safe pulse bag-type dust collector, which comprises: a mounting frame; the dust remover shell is fixedly arranged on the mounting frame, and an air inlet and an air outlet which are communicated with the inner cavity of the dust remover shell are formed in the dust remover shell; the dust remover comprises a dust remover shell, a plurality of filter cloth bags are vertically arranged in the dust remover shell, and air introduced from an air inlet is filtered by the filter cloth bags and then discharged from an air outlet; the dust remover comprises a pulse injection device, wherein the pulse injection device is arranged in a dust remover shell and is used for reversely injecting the filter cloth bag. Through set up the jetting pipe that has the brace in filtering the sack, it can't effectively filter to avoid its interior flat when filtering the dust removal, guarantees through comparatively reasonable runner simultaneously that compressed air can have sufficient kinetic energy to blow to filtering the sack, can successfully blow off the dust that is detained to can reduce the energy consumption of dust remover, also can reduce the incident that causes because of the dust is detained.
Description
Technical Field
The invention relates to the technical field of bag-type dust collectors, in particular to an energy-saving safe pulse bag-type dust collector.
Background
The pulse bag dust collector is an improved novel high-efficiency pulse bag type dust collector on the basis of a bag dust collector. The pulse bag-type dust collector adopts a compartment air-stopping pulse blowing dust-cleaning technology, overcomes the defects of the conventional pulse dust collector and a compartment back-blowing dust collector, and has strong dust-cleaning capacity and high dust-cleaning efficiency.
However, the filter cloth bag of the existing cloth bag dust remover is soft in use due to the material, the filter cloth bag is shrivelled and cannot be effectively filtered when being filtered, the pulse blowing is performed while the ash is not thoroughly removed due to the shriveling, the energy consumption of the cloth bag dust remover is increased due to the situation, and certain potential safety hazards exist on the surface of the filter cloth bag due to the accumulation of dust.
Disclosure of Invention
The invention aims to provide an energy-saving safe pulse bag-type dust collector to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme: an energy-saving safe pulse bag-type dust collector, comprising:
a mounting frame;
the dust remover shell is fixedly arranged on the mounting frame, and an air inlet and an air outlet which are communicated with the inner cavity of the dust remover shell are formed in the dust remover shell;
the dust remover comprises a dust remover shell, a plurality of filter cloth bags are vertically arranged in the dust remover shell, and air introduced from an air inlet is filtered by the filter cloth bags and then discharged from an air outlet;
the dust remover comprises a pulse injection device, wherein the pulse injection device is arranged in a dust remover shell and is used for reversely injecting the filter cloth bag.
As an improvement of the invention, the lower half part of the dust remover shell is in a conical shape, the upper half part of the dust remover shell is in a cylindrical shape, the air inlet is arranged on the side surface of the lower half part of the dust remover shell, and the air outlet is arranged at the top end of the upper half part of the dust remover shell.
As an improvement of the invention, a transverse clapboard is arranged in the dust remover shell, the transverse clapboard divides an inner cavity of the dust remover shell into a dust removing cavity and an air purifying cavity, the filter cloth bag is arranged in the dust removing cavity, and the pulse blowing device is arranged in the air purifying cavity.
As an improvement of the present invention, the pulse blowing device includes:
the compressed air bag is fixedly arranged on the outer wall of the dust remover shell;
the pulse vent valve is communicated with the compressed air bag, and is connected with a vent pipe which extends into the clean air cavity;
the gas distribution pipe is horizontally arranged in the gas purification cavity and is connected with the vent pipe;
the spraying and blowing pipes are arranged in each filter cloth bag and are communicated with the gas distribution pipe, and gas holes are formed in the peripheral surface of each spraying and blowing pipe;
the periphery of the blowing pipe is further provided with support arms at intervals, and the free ends of the support arms are abutted to the inner wall of the filtering cloth bag.
As an improvement of the invention, an air guide pipe sleeve is arranged on the partition plate, the blowing pipe penetrates through the air guide pipe sleeve, the air guide pipe sleeve is of a tubular structure with two open ends, and the lower end of the air guide pipe sleeve is contained in the filtering cloth bag;
the air guide pipe sleeve is divided into a lower end air guide end, a middle transition section and an upper end air expansion end from bottom to top, the outer shapes of the lower end air guide end and the upper end air expansion end are horn-shaped, the middle transition section is of a cylindrical tubular structure, the inner end face of the lower end air guide end is of an inwards concave spherical surface shape, and the inner end face of the upper end air expansion end is of an outwards convex arc surface.
As an improvement of the invention, the air pipe and the air distributing pipe are connected through a flow distributing sleeve, and the flow distributing sleeve comprises:
the outer peripheral surface of the upper connector is provided with threads for connecting with the vent pipe, a first air flow channel is formed inside the upper connector, and the lower end of the first air flow channel is in a spherical nozzle shape;
the middle connecting sleeve is clamped on the outer wall of the upper connecting head, an installation groove is formed in the middle connecting sleeve, the upper connecting head is arranged in the installation groove, a second airflow channel communicated with the installation groove is arranged in the middle connecting sleeve, and the upper half part of the second airflow channel is in a convex spherical shape;
the outer wall of the lower half part of the middle connecting sleeve is also sleeved with a gas stabilizing sleeve, a gas stabilizing groove is arranged in the gas stabilizing sleeve, a third airflow channel is arranged at the lower end of the gas stabilizing groove, and the third airflow channel is in a curved surface transition shape;
the upper half part of the lower connecting sleeve is fixedly connected to the outer wall of the middle connecting sleeve, the lower connecting sleeve completely encloses the gas stabilizing sleeve, the lower half part of the lower connecting sleeve is a gas distributing disc part, the lower end of the gas distributing disc part is connected with a rotating disc, and a channel formed by the gas distributing disc part and the rotating disc is communicated with the gas distributing pipe.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is an external view of the present invention;
FIG. 2 is an internal cross-sectional view of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 2 at A;
FIG. 4 is a schematic view of the structure of the gas guide shroud of the present invention;
fig. 5 is a schematic structural view of the flow-dividing sleeve of the present invention.
The components in the figure are:
1. a mounting frame is arranged on the base plate,
2. a dust remover shell 21, an air inlet 22, an air outlet 23, a transverse clapboard 24, a dust removing chamber 25 and a gas purifying chamber,
3. a cloth filter bag is arranged on the bottom of the filter bag,
4. a pulse blowing device 41, a compressed air bag 42, a pulse vent valve 43, a vent pipe 44, a gas distribution pipe 45, a blowing pipe 46 and a supporting arm,
5. an air guide pipe sleeve 51, a lower end air guide end 52, a middle transition section 53, an upper end air expansion end,
6. the gas-stabilizing sleeve comprises a flow dividing sleeve 61, an upper connector 62, a first gas flow channel 63, a middle connecting sleeve 64, a second gas flow channel 65, a gas-stabilizing sleeve 66, a third gas flow channel 67, a lower connecting sleeve 68, a gas-dividing disc part 69 and a rotating disc.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to all the drawings, an energy-saving safety pulse bag-type dust collector comprises:
a mounting frame 1;
the dust remover shell 2 is fixedly arranged on the mounting rack 1, and an air inlet 21 and an air outlet 22 which are communicated with the inner cavity of the dust remover shell 2 are arranged on the dust remover shell 2;
the dust collector comprises a filter cloth bag 3, wherein a plurality of filter cloth bags 3 are vertically arranged in a dust collector shell 2, and air introduced from an air inlet 21 is filtered by the filter cloth bags 3 and then is discharged from an air outlet 22;
the dust collector comprises a pulse blowing device 4, wherein the pulse blowing device 4 is arranged in the dust collector shell 2, and the pulse blowing device 4 is used for reversely blowing the filter cloth bag 3.
As an embodiment of the present invention, the lower half portion of the dust collector case 2 is conical, the upper half portion is cylindrical, the air inlet 21 is disposed on a side surface of the lower half portion of the dust collector case 2, and the air outlet 22 is disposed at a top end of the upper half portion of the dust collector case 2.
As an embodiment of the present invention, a transverse partition plate 23 is disposed inside the dust collector housing 2, the transverse partition plate 23 divides an inner cavity of the dust collector housing 2 into a dust collecting chamber 24 and a clean air chamber 25, the filter cloth bag 3 is disposed in the dust collecting chamber 24, and the pulse blowing device 4 is disposed in the clean air chamber 25.
As an embodiment of the present invention, the pulse blowing device 4 includes:
a compressed air bag 41 fixedly arranged on the outer wall of the dust collector shell 2;
a pulse vent valve 42 communicated with the compressed air bag 41, wherein a vent pipe 43 is connected to the pulse vent valve 42, and the vent pipe 43 extends into the air purifying chamber 25;
a gas distribution pipe 44 horizontally disposed in the clean gas chamber 25 and connected to the gas pipe 43;
the air distribution pipes 44 are communicated with the air distribution pipes 45, and air holes are formed in the circumferential surface of each air distribution pipe 45;
and the circumferential surface of the blowing pipe 45 is further provided with support arms 46 at intervals, and the free ends of the support arms 46 are abutted against the inner wall of the filter cloth bag 3.
As an embodiment of the present invention, an air guide sleeve 5 is disposed on the partition plate, the blowing pipe 45 penetrates through the air guide sleeve 5, the air guide sleeve 5 is a tubular structure with two open ends, and the lower end of the air guide sleeve 5 is enclosed by the filter cloth bag 3;
the air guide pipe sleeve 5 is divided into a lower end air guide end 51, a middle transition section 52 and an upper end air expansion end 53 from bottom to top, the outer shapes of the lower end air guide end 51 and the upper end air expansion end 53 are horn-shaped, the middle transition section 52 is of a cylindrical tubular structure, the inner end surface of the lower end air guide end 51 is of an inwards concave spherical surface shape, and the inner end surface of the upper end air expansion end 53 is of an outwards convex arc surface.
As an embodiment of the present invention, the air pipe 43 and the air distribution pipe 44 are connected by a flow distribution sleeve 6, and the flow distribution sleeve 6 includes:
an upper connector 61, the outer peripheral surface of which is provided with a thread for connecting with the vent pipe 43, the upper connector 61 is internally provided with a first air flow channel 62, and the lower end of the first air flow channel 62 is in a shape of a spherical nozzle;
the middle connecting sleeve 63 is clamped on the outer wall of the upper connecting head 61, an installation groove is formed in the middle connecting sleeve 63, the upper connecting head 61 is arranged in the installation groove, a second airflow channel 64 communicated with the installation groove is arranged in the middle connecting sleeve 63, and the upper half part of the second airflow channel 64 is in a convex spherical shape;
the outer wall of the lower half part of the middle connecting sleeve 63 is also sleeved with the gas stabilizing sleeve 65, a gas stabilizing groove is arranged in the gas stabilizing sleeve 65, the lower end of the gas stabilizing groove is provided with a third airflow channel 66, and the third airflow channel 66 is in a curved surface transition shape;
the upper half part of the lower connecting sleeve 67 is fixedly connected to the outer wall of the middle connecting sleeve 63, the air stabilizing sleeve 65 is completely contained in the lower connecting sleeve 67, the lower half part of the lower connecting sleeve 67 is a gas distributing disc part 68, the lower end of the gas distributing disc part 68 is connected with a rotating disc 69, and a channel formed by the gas distributing disc part 68 and the rotating disc 69 is communicated with the gas distributing pipe 44.
The working principle of the technical scheme is as follows: when the energy-saving safe pulse bag-type dust collector is used, air containing dust enters the dust collector shell 2 from the air inlet 21, dust with larger particles is deposited on the lower half part (namely a dust hopper) of the dust collector shell 2 in diameter, dust with smaller particles flows to the filter bag 3 along with the flow of the air, the dust is retained on the surface of the filter bag 3, and clean air penetrates through the filter bag 3 and is guided into the air purifying chamber 25 through the air guide pipe sleeve 5 to be discharged. When the dust collection device runs for a specified period, the pulse ventilation valve 42 is opened, compressed air in the compressed air bag 41 enters the blowing pipe 45 through the ventilation pipe 43 and the air distribution pipe 44, the compressed air is blown to the filter cloth bag 3 through the air holes in the blowing pipe 45, dust staying on the surface of the filter cloth bag is blown down to the dust hopper, and the pulse dust collection is realized after the circulation.
The circumferential surface of the blowing pipe 45 is provided with a plurality of support arms 46, which can ensure that the soft filtering cloth bag 3 keeps the opening state all the time, increase the filtering area, and simultaneously ensure that dust can be blown off during pulse type blowing.
Furthermore, since the blowing pipe 45 occupies a portion of space which would seriously affect the continuity of the flow of clean air into the clean air chamber 25 (i.e. because the flow channel has a cross section that is not the same throughout, the flow rate of clean air into the clean air chamber 25 is negligible or not), the passage inside the air guide sleeve 5 is designed for this purpose: the middle transition section 52 is a cylindrical tubular structure, the inner end surface of the lower end air guide end 51 is a concave spherical surface, and the inner end surface of the upper end air expansion end 53 is a convex arc surface. Thus, when the air flows into the air guide pipe sleeve 5, the air in the filter cloth bag 3 is formed into a turbulent flow by the concave spherical surface to stay a part of the air, and the convex arc surface can more quickly diffuse the air in the air guide pipe sleeve 5 into the air purifying chamber 25. Namely, one end of the air guide pipe sleeve 5 turbulently decelerates as much as possible, and the other end diffuses and accelerates, thereby forming stable airflow.
The function of the distribution sleeve 6 is to distribute the compressed air as evenly as possible in each blowing tube 45, while ensuring that the pressure of the compressed air ejected is sufficient. The compressed air enters the flow-dividing sleeve 6 through the first air flow channel 62, forms a turbulent flow in the shape of a spherical nozzle, and enters the second air flow channel 64, and the upper half part of the second air flow channel 64 is a spherical surface which is convex outwards, so that the turbulent flow caused by the turbulent flow can be avoided to a greater extent than a plane concave surface. The air stabilizing sleeve 65 serves to provide a space for stabilizing the flow. The lower connecting sleeve 67 directly contains the air stabilizing sleeve 65 and the middle connecting sleeve 63, so that leakage of compressed air can be avoided, the sub-air disc part 68 and the rotating disc 69 are matched to form a plurality of shunting channels, and meanwhile, the rotating disc 69 rotates to adjust the size of the shunting channels.
The beneficial effects of the above technical scheme are that: through set up the jetting pipe that has the brace in filtering the sack, it can't effectively filter to avoid its interior flat when filtering the dust removal, guarantees through comparatively reasonable runner simultaneously that compressed air can have sufficient kinetic energy to blow to filtering the sack, can successfully blow off the dust that is detained to can reduce the energy consumption of dust remover, also can reduce the incident that causes because of the dust is detained.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (3)
1. The utility model provides an energy-conserving safe type pulse sack cleaner which characterized in that includes:
a mounting frame (1);
the dust remover shell (2) is fixedly arranged on the mounting rack (1), and an air inlet (21) and an air outlet (22) which are communicated with the inner cavity of the dust remover shell (2) are arranged on the dust remover shell (2);
the dust collector comprises a dust collector shell (2), a plurality of filter cloth bags (3) are vertically arranged in the dust collector shell (3), and air introduced from an air inlet (21) is filtered by the filter cloth bags (3) and then is discharged from an air outlet (22);
the dust remover comprises a pulse injection device (4), wherein the pulse injection device (4) is arranged in the dust remover shell (2), and the pulse injection device (4) is used for reversely injecting the filtering cloth bag (3);
a transverse clapboard (23) is arranged in the dust remover shell (2), the inner cavity of the dust remover shell (2) is divided into a dust removing chamber (24) and a gas purifying chamber (25) by the transverse clapboard (23), the filtering cloth bag (3) is arranged in the dust removing chamber (24), and the pulse blowing device (4) is arranged in the gas purifying chamber (25);
the pulse blowing device (4) comprises:
the compressed air bag (41) is fixedly arranged on the outer wall of the dust remover shell (2);
the pulse ventilation valve (42) is communicated with the compressed air bag (41), a ventilation pipe (43) is connected to the pulse ventilation valve (42), and the ventilation pipe (43) extends into the air purification chamber (25);
a gas distribution pipe (44) horizontally arranged in the gas cleaning chamber (25) and connected with the vent pipe (43);
the air distribution pipe is characterized by comprising injection pipes (45), each filtering cloth bag (3) is internally provided with one injection pipe (45), each injection pipe (45) is communicated with the air distribution pipe (44), and the peripheral surface of each injection pipe (45) is provided with air holes;
the circumferential surface of the blowing pipe (45) is further provided with supporting arms (46) at intervals, and the free ends of the supporting arms (46) are abutted against the inner wall of the filtering cloth bag (3);
the air pipe (43) is connected with the air distribution pipe (44) through a flow distribution sleeve (6), and the flow distribution sleeve (6) comprises:
the outer peripheral surface of the upper connector (61) is provided with threads and is used for being connected with the vent pipe (43), a first air flow channel (62) is formed in the upper connector (61), and the lower end of the first air flow channel (62) is in a spherical nozzle shape;
the middle connecting sleeve (63) is clamped on the outer wall of the upper connecting head (61), an installation groove is formed in the middle connecting sleeve (63), the upper connecting head (61) is arranged in the installation groove, a second airflow channel (64) communicated with the installation groove is arranged in the middle connecting sleeve (63), and the upper half part of the second airflow channel (64) is in a convex spherical shape;
the gas stabilizing sleeve (65) is further sleeved on the outer wall of the lower half part of the middle connecting sleeve (63), a gas stabilizing groove is formed in the gas stabilizing sleeve (65), a third airflow channel (66) is formed in the lower end of the gas stabilizing groove, and the third airflow channel (66) is in a curved surface transition shape;
the upper half part of the lower connecting sleeve (67) is fixedly connected to the outer wall of the middle connecting sleeve (63), the lower connecting sleeve (67) completely contains the gas stabilizing sleeve (65), the lower half part of the lower connecting sleeve (67) is a gas distributing disc part (68), the lower end of the gas distributing disc part (68) is connected with a rotating disc (69), and a channel formed by the gas distributing disc part (68) and the rotating disc (69) is communicated with the gas distributing pipe (44).
2. The energy-saving safe pulse bag-type dust collector as claimed in claim 1, wherein the lower half part of the dust collector shell (2) is conical, the upper half part is cylindrical, the air inlet (21) is arranged on the side surface of the lower half part of the dust collector shell (2), and the air outlet (22) is arranged at the top end of the upper half part of the dust collector shell (2).
3. The energy-saving safe pulse bag-type dust collector as claimed in claim 1, wherein an air guide pipe sleeve (5) is arranged on the partition plate, the blowing pipe (45) penetrates through the air guide pipe sleeve (5), the air guide pipe sleeve (5) is of a tubular structure with two open ends, and the lower end of the air guide pipe sleeve (5) is contained in the filtering bag (3);
the air guide pipe sleeve (5) is divided into a lower end air guide end (51), a middle transition section (52) and an upper end air expansion end (53) from bottom to top, the outer shapes of the lower end air guide end (51) and the upper end air expansion end (53) are horn-shaped, the middle transition section (52) is of a cylindrical tubular structure, the inner end face of the lower end air guide end (51) is concave spherical, and the inner end face of the upper end air expansion end (53) is a convex arc face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011505620.2A CN112604404B (en) | 2020-12-18 | 2020-12-18 | Energy-saving safe pulse bag-type dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011505620.2A CN112604404B (en) | 2020-12-18 | 2020-12-18 | Energy-saving safe pulse bag-type dust collector |
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| Publication Number | Publication Date |
|---|---|
| CN112604404A CN112604404A (en) | 2021-04-06 |
| CN112604404B true CN112604404B (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011505620.2A Active CN112604404B (en) | 2020-12-18 | 2020-12-18 | Energy-saving safe pulse bag-type dust collector |
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| CN202700988U (en) * | 2012-08-01 | 2013-01-30 | 北京京诚瑞信长材工程技术有限公司 | Turbulence sleeve and turbulence pipe |
| CN105617782A (en) * | 2016-03-15 | 2016-06-01 | 徐州工程学院 | Pulse beating bag type dust removal device and working method thereof |
| CN108591135A (en) * | 2018-06-11 | 2018-09-28 | 南华大学 | Tapered air persuader |
| CN210638750U (en) * | 2019-04-04 | 2020-05-29 | 临沂市环翔水表有限公司 | High-precision ultrasonic water meter |
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