CN215085562U - Environment-friendly purification and separation device for flue gas - Google Patents

Environment-friendly purification and separation device for flue gas Download PDF

Info

Publication number
CN215085562U
CN215085562U CN202120459933.2U CN202120459933U CN215085562U CN 215085562 U CN215085562 U CN 215085562U CN 202120459933 U CN202120459933 U CN 202120459933U CN 215085562 U CN215085562 U CN 215085562U
Authority
CN
China
Prior art keywords
baffle
plate
wall
spring
transverse plate
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.)
Active
Application number
CN202120459933.2U
Other languages
Chinese (zh)
Inventor
侯磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Bihai Environmental Protection Technology Co ltd
Original Assignee
Shenyang Bihai Environmental Protection Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenyang Bihai Environmental Protection Technology Co ltd filed Critical Shenyang Bihai Environmental Protection Technology Co ltd
Priority to CN202120459933.2U priority Critical patent/CN215085562U/en
Application granted granted Critical
Publication of CN215085562U publication Critical patent/CN215085562U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The utility model discloses a flue gas environmental protection purifies separator, including air duct and intake pipe, the top rigid coupling of air duct has the intake pipe, sealing device is installed on the top right side of air duct. This flue gas environmental protection purifies separator, through the connecting rod, first spring, mutually support between slider and the first diaphragm isotructure, can make the connecting rod drive the slider and locate to remove at the spout of first diaphragm, make the connecting rod stretch first spring, thereby elasticity performance through first spring can make filter screen and filter core more stable, through the second baffle, the second diaphragm, the tooth baffle, the second spring, the gear, mutually support between riser and the handle isotructure, can make the tooth baffle support the box through the elasticity performance of second spring tightly, thereby it is fixed with the casing through the box, rethread second baffle fixes the box etc. in guide duct department, it dismantles the clearance to it also to have made things convenient for simultaneously.

Description

Environment-friendly purification and separation device for flue gas
Technical Field
The utility model relates to a technical field is handled to the flue gas, specifically is a flue gas environmental protection purifies separator.
Background
The flue gas is the mixture of gas and smoke and dust, be the main reason that pollutes the atmospheric of residential block, the composition of flue gas is very complicated, therefore the pollution of flue gas to the environment is the combined pollution of multiple poison, the harmfulness of smoke and dust to the human body is related to the size of granule, it is less than ten microns of diameter to produce the floating dust to the human body most of harm, consequently, need purify the separation to the flue gas, and the leakproofness of purifier filter plate department among the prior art is relatively poor, just so the flue gas spills over the phenomenon easily to appear, also inconvenient among the prior art is dismantled the maintenance to the fan device of water conservancy diversion department simultaneously.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flue gas environmental protection purifies separator to the leakproofness of the purifier filter plate department among the solution above-mentioned background art that proposes and prior art is relatively poor, just so the problem that the flue gas spills over the phenomenon appears easily.
In order to achieve the above object, the utility model provides a following technical scheme: an environment-friendly purification and separation device for flue gas comprises an air duct and an air inlet pipe, wherein the air inlet pipe is fixedly connected above the air duct, and a sealing device is arranged on the right side above the air duct;
the sealing device comprises a first baffle, a first rectangular block, a connecting rod, a first spring, a sliding block and a first transverse plate;
the air guide duct comprises a first baffle plate, an air guide duct body, a connecting rod, a first spring, a sliding block, a first transverse plate, a sliding chute and an outer wall of the sliding block, wherein the first baffle plate is in threaded connection with the air guide duct body through a plurality of bolts, the middle of the lower surface of the first baffle plate is fixedly connected with a plurality of first rectangular blocks, the front end face of each first rectangular block is rotatably connected with the connecting rod through a rotating shaft, the middle of the inner side of the connecting rod is rotatably connected with the first spring through the rotating shaft, the lower side of the connecting rod is rotatably connected with the sliding block through the rotating shaft, the first transverse plate is installed below the sliding block, the inner wall of the sliding chute of the first transverse plate is in clearance fit with the outer wall of the sliding block, and the outer wall of the opening of the air guide duct body is in clearance fit with the outer wall of the opening of the first transverse plate.
Preferably, the sliding block and the first transverse plate form a sliding structure.
Preferably, a purification device is installed inside the air duct;
the purifying device comprises a concave plate, a filter screen, a filter element, a second rectangular block, a shell, a convex rod, fan blades, a box body and a motor;
the left and right sides the lower surface of concave plate is fixed with the induction duct and is connected with, control the recess of concave plate and install filter screen and filter core respectively, the outer wall of filter screen and filter core and the recess inner wall clearance fit of concave plate, the upper surface of filter screen and filter core closely laminates with the lower surface of first diaphragm, the left side of filter screen is equipped with a plurality of second rectangular blocks, from top to bottom the outside of second rectangular block links to each other with the induction duct is fixed, the casing is installed in the left side of second dog, the outer wall of casing and the inner wall clearance fit of induction duct, the inside of casing rotates through the bearing and is connected with the convex pole, the outer wall rigid coupling of convex pole has a plurality of flabellums, the left side rigid coupling of casing has the box, the inside rigid coupling of box has the motor, the output shaft and the convex pole of motor are fixed to link to each other.
Preferably, the midpoint of the output shaft of the motor is on the same horizontal line with the midpoint of the convex rod.
Preferably, a fixing device is installed inside the left side of the air duct;
the fixing device comprises a second baffle, a second transverse plate, a tooth baffle, a second spring, a gear, a vertical plate and a handle;
the air guide duct is characterized in that the second baffle is in threaded connection with the air guide duct through a plurality of bolts, a plurality of second transverse plates are fixedly connected to the right side of the second baffle, tooth baffles are installed at through holes of the second transverse plates, outer walls of the tooth baffles are in clearance fit with inner walls of the through holes of the second transverse plates, the inner sides of the tooth baffles are tightly attached to the outer walls of the box body, second springs are installed at the outer walls of the inner sides of the tooth baffles, the outer walls of the two sides of each second spring are fixedly connected with the second transverse plates and the tooth baffles respectively, gears are meshed with the right sides of the tooth baffles, the rear end faces of the gears are rotatably connected with vertical plates through rotating shafts, the inner sides of the vertical plates are fixedly connected with the second transverse plates, and handles are fixedly connected to the left sides of the tooth baffles.
Preferably, the second transverse plate and the second baffle plate are vertically arranged.
Compared with the prior art, the beneficial effects of the utility model are that: according to the environment-friendly purification and separation device for the flue gas, the connecting rod can drive the sliding block to move at the sliding groove of the first transverse plate through the mutual matching of the structures such as the first baffle plate, the first rectangular block, the connecting rod, the first spring, the sliding block and the first transverse plate, so that the connecting rod stretches the first spring, the filter screen and the filter element can be more stable through the elastic property of the first spring, and meanwhile, the sealing property at the air guide cylinder can be improved through the first baffle plate;
through the mutual matching of the structures such as the concave plate, the filter screen, the filter element, the second rectangular block, the shell, the convex rod, the fan blade, the box body and the motor, the convex rod can be driven by the motor to rotate, so that the convex rod drives the fan blade to rotate, the flue gas is guided, and the flue gas sequentially passes through the filter screen and the filter element, so that the flue gas is purified and separated;
through mutually supporting between second baffle, second diaphragm, tooth baffle, second spring, gear, riser and the handle isotructure, can make the tooth baffle support the box through the elasticity performance of second spring tightly to it is fixed with the casing through the box, rethread second baffle is fixed box etc. in ventilating duct department, has also made things convenient for simultaneously to dismantle the clearance to it.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the first baffle plate, the first rectangular block and the sliding block in FIG. 1;
FIG. 3 is a schematic structural view of the fan blade, the motor and the box in FIG. 1;
fig. 4 is a schematic structural view of the handle, the second baffle and the riser in fig. 1.
In the figure: 1. the air guide cylinder comprises an air guide cylinder body, 2, an air inlet pipe, 3, a sealing device, 301, a first baffle plate, 302, a first rectangular block, 303, a connecting rod, 304, a first spring, 305, a sliding block, 306, a first transverse plate, 4, a purifying device, 401, a concave plate, 402, a filter screen, 403, a filter element, 404, a second rectangular block, 405, a shell, 406, a convex rod, 407, a fan blade, 408, a box body, 409, a motor, 5, a fixing device, 501, a second baffle plate, 502, a second transverse plate, 503, a tooth baffle plate, 504, a second spring, 505, a gear, 506, a vertical plate, 507 and a handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: an environment-friendly purification and separation device for flue gas comprises an air duct 1 and an air inlet pipe 2, openings are processed on the upper side and the left side of the air duct 1, the air inlet pipe 2 is fixedly connected to the upper side of the air duct 1, a valve is installed in the middle of the air inlet pipe 2, a sealing device 3 is installed on the right side of the upper side of the air duct 1, the sealing device 3 comprises a first baffle plate 301, a first rectangular block 302, a connecting rod 303, a first spring 304, a sliding block 305 and a first transverse plate 306, the first baffle plate 301 is in threaded connection with the air duct 1 through 2 bolts, 2 first rectangular blocks 302 are fixedly connected to the middle of the lower surface of the first baffle plate 301, the front end surface of the first rectangular block 302 is rotatably connected with the connecting rod 303 through a rotating shaft, the first spring 304 is rotatably connected to the middle of the inner side of the connecting rod 303 through a rotating shaft, when the connecting rod 303 rotates to the outer side, the first spring 304 is in a stretching state, the lower part of the connecting rod 303 is rotatably connected with the sliding block 305 through the rotating shaft, a first transverse plate 306 is installed below the sliding block 305, a sliding groove is processed above the first transverse plate 306, the inner wall of the sliding groove of the first transverse plate 306 is in clearance fit with the outer wall of the sliding block 305, the sliding block 305 can move at the sliding groove of the first transverse plate 306, the outer wall of the first transverse plate 306 is in clearance fit with the inner wall of the opening of the air guide cylinder 1, and the sliding block 305 and the first transverse plate 306 form a sliding structure.
The purifying device 4 is arranged in the air guide cylinder 1, the purifying device 4 comprises a concave plate 401, a filter screen 402, a filter element 403, a second rectangular block 404, a shell 405, a convex rod 406, fan blades 407, a box body 408 and a motor 409, the lower surfaces of a left concave plate 401 and a right concave plate 401 are fixedly connected with the air guide cylinder 1, the filter screen 402 and the filter element 403 are respectively arranged at the groove positions of the left concave plate 401 and the right concave plate 401, the filter screen 402 and the filter element 403 can purify smoke with the filter screen 402 and the filter element 403 in various countries, the outer walls of the filter screen 402 and the filter element 403 are in clearance fit with the inner wall of the groove position of the concave plate 401, the upper surfaces of the filter screen 402 and the filter element 403 are tightly attached to the lower surface of a first transverse plate 306, 2 second rectangular blocks 404 are arranged at the left side of the filter screen 402, the second rectangular blocks 404 can limit the shell 405, the outer sides of the upper and lower second rectangular blocks 404 are fixedly connected with the air guide cylinder 1, the shell 405 is arranged at the left side of the second block 404, the outer wall of the shell 405 is in clearance fit with the inner wall of the air guide cylinder 1, the inside of casing 405 is connected with convex pole 406 through the bearing rotation, the outer wall rigid coupling of convex pole 406 has 4 flabellums 407, convex pole 406 can drive flabellum 407 and rotate, the left side rigid coupling of casing 405 has box 408, the inside rigid coupling of box 408 has motor 409, the model of motor 409 is 3GB-555, the output shaft of motor 409 and convex pole 406 fixed link to each other, motor 409 can drive convex pole 406 and rotate, the output shaft midpoint of motor 409 and the midpoint of convex pole 406 are on same water flat line.
The left side of the air duct 1 is internally provided with a fixing device 5, the fixing device 5 comprises a second baffle plate 501, a second transverse plate 502, a tooth baffle 503, a second spring 504, a gear 505, a vertical plate 506 and a handle 507, the second baffle plate 501 is in threaded connection with the air duct 1 through 2 bolts, the right side of the second baffle plate 501 is fixedly connected with 2 second transverse plates 502, through holes are processed in the second transverse plate 502, the tooth baffle 503 is installed at the through holes of the second transverse plate 502, the outer wall of the tooth baffle 503 is in clearance fit with the inner wall of the through holes of the second transverse plate 502, the inner side of the tooth baffle 503 is tightly attached to the outer wall of the box 408, the outer wall of the inner side of the tooth baffle 503 is provided with the second spring 504, the outer walls of two sides of the second spring 504 are respectively fixed with the second transverse plate 502 and the tooth baffle 503, when the tooth baffle 503 moves outwards, the second spring 504 is in a compressed state, so that the tooth baffle 503 can tightly fix the box 408 through the elastic performance of the second spring 504, the right side meshing of tooth baffle 503 is connected with gear 505, and tooth baffle 503 can drive gear 505 and rotate, can make tooth baffle 503 play limiting displacement through gear 505, and the rear end face of gear 505 rotates through the pivot and is connected with riser 506, and the inboard and the second diaphragm 502 of riser 506 are fixed continuous, and the left side rigid coupling of tooth baffle 503 has handle 507, and second diaphragm 502 is perpendicular setting with second baffle 501.
When an operator needs to use the environment-friendly smoke purification and separation device, firstly, the operator installs the filter screen 402 and the filter element 403 in the groove of the concave plate 401, attaches the lower surface of the first transverse plate 306 to the upper surfaces of the filter screen 402 and the filter element 403, fixes the first baffle plate 301 to the air guide cylinder 1 through the bolt, when the bolt drives the first baffle plate 301 to move downwards, the first baffle plate 301 can drive the connecting rod 303 to rotate through the first rectangular block 302, so that the connecting rod 303 moves at the chute of the first transverse plate 306 through the sliding block 305, so that the connecting rod 306 stretches the first spring 304, the filter screen 402 and the filter element 403 can be more stable through the elastic performance of the first spring 304, meanwhile, the sealing effect is also increased through the first baffle plate 301, the handle 507 is pulled outwards, the handle 507 drives the tooth baffle plate 503 to move, the tooth baffle plate 503 compresses the second spring 504 through the second transverse plate 502, drive box 408 through casing 405 and remove to between two upper and lower tooth baffles 503, loosen handle 507, thereby make tooth baffle 503 support box 508 tightly fixedly through the elasticity performance of second spring 504, rethread second baffle 501 drives casing 405 and removes to in the air duct 1, it is fixed with air duct 1 with second baffle 501 through the bolt, just so reached conveniently to the purpose of dismantling the maintenance to the diversion equipment, switch on motor 409's external power supply, start motor 409, after the flue gas passes through intake pipe 2 and arranges into, motor 409 can drive the flabellum rotation through convex pole 406, thereby carry out the water conservancy diversion to the flue gas, make the flue gas pass through filter screen 402 and filter core 403 in proper order, thereby purify the separation to the flue gas.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a flue gas environmental protection purifies separator, includes air duct (1) and intake pipe (2), the top rigid coupling of air duct (1) has intake pipe (2), its characterized in that: a sealing device (3) is arranged on the right side above the air duct (1);
the sealing device (3) comprises a first baffle plate (301), a first rectangular block (302), a connecting rod (303), a first spring (304), a sliding block (305) and a first transverse plate (306);
the air guide duct is characterized in that the first baffle plate (301) is in threaded connection with the air guide duct (1) through a plurality of bolts, a plurality of first rectangular blocks (302) are fixedly connected to the middle of the lower surface of the first baffle plate (301), the front end face of each first rectangular block (302) is rotatably connected with a connecting rod (303) through a rotating shaft, a first spring (304) is rotatably connected to the middle of the inner side of each connecting rod (303) through the rotating shaft, a sliding block (305) is rotatably connected to the lower portion of each connecting rod (303) through the rotating shaft, a first transverse plate (306) is installed below each sliding block (305), the inner wall of the sliding groove of the first transverse plate (306) is in clearance fit with the outer wall of each sliding block (305), and the outer wall of the first transverse plate (306) is in clearance fit with the inner wall of the opening of the air guide duct (1).
2. The environment-friendly purification and separation device for flue gas as claimed in claim 1, wherein: the sliding block (305) and the first transverse plate (306) form a sliding structure.
3. The environment-friendly purification and separation device for flue gas as claimed in claim 1, wherein: a purifying device (4) is arranged in the air duct (1);
the purification device (4) comprises a concave plate (401), a filter screen (402), a filter element (403), a second rectangular block (404), a shell (405), a convex rod (406), fan blades (407), a box body (408) and a motor (409);
the lower surfaces of the left concave plate and the right concave plate (401) are fixedly connected with the air guide cylinder (1), a filter screen (402) and a filter element (403) are respectively arranged at the groove positions of the left concave plate and the right concave plate (401), the outer walls of the filter screen (402) and the filter element (403) are in clearance fit with the inner wall of the groove position of the concave plate (401), the upper surfaces of the filter screen (402) and the filter element (403) are tightly attached to the lower surface of the first transverse plate (306), the left side of the filter screen (402) is provided with a plurality of second rectangular blocks (404), the outer sides of the upper rectangular block and the lower rectangular block (404) are fixedly connected with the air guide cylinder (1), the left side of each second block (404) is provided with a shell (405), the outer wall of the shell (405) is in clearance fit with the inner wall of the air guide cylinder (1), the interior of the shell (405) is rotatably connected with a convex rod (406) through a bearing, and the outer wall of the convex rod (406) is fixedly connected with a plurality of fan blades (407), the left side rigid coupling of casing (405) has box (408), the inside rigid coupling of box (408) has motor (409), the output shaft and the convex pole (406) of motor (409) are fixed continuous.
4. The environmental protection purification and separation device for flue gas according to claim 3, characterized in that: the middle point of the output shaft of the motor (409) and the middle point of the convex rod (406) are on the same horizontal line.
5. The environment-friendly purification and separation device for flue gas as claimed in claim 1, wherein: a fixing device (5) is arranged inside the left side of the air duct (1);
the fixing device (5) comprises a second baffle plate (501), a second transverse plate (502), a tooth baffle plate (503), a second spring (504), a gear (505), a vertical plate (506) and a handle (507);
the second baffle (501) is in threaded connection with the air guide cylinder (1) through a plurality of bolts, a plurality of second transverse plates (502) are fixedly connected to the right side of the second baffle (501), a tooth baffle (503) is installed at a through hole of the second transverse plate (502), the outer wall of the tooth baffle (503) is in clearance fit with the inner wall of the through hole of the second transverse plate (502), the inner side of the tooth baffle (503) is tightly attached to the outer wall of the box body (408), a second spring (504) is installed at the outer wall of the inner side of the tooth baffle (503), the outer walls of two sides of the second spring (504) are respectively and fixedly connected with the second transverse plate (502) and the tooth baffle (503), a gear (505) is meshed and connected to the right side of the tooth baffle (503), the rear end face of the gear (505) is rotatably connected with a vertical plate (506) through a rotating shaft, and the inner side of the vertical plate (506) is fixedly connected with the second transverse plate (502), a handle (507) is fixedly connected to the left side of the tooth baffle (503).
6. The environmental protection purification and separation device for flue gas according to claim 5, characterized in that: the second transverse plate (502) and the second baffle plate (501) are vertically arranged.
CN202120459933.2U 2021-03-03 2021-03-03 Environment-friendly purification and separation device for flue gas Active CN215085562U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120459933.2U CN215085562U (en) 2021-03-03 2021-03-03 Environment-friendly purification and separation device for flue gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120459933.2U CN215085562U (en) 2021-03-03 2021-03-03 Environment-friendly purification and separation device for flue gas

Publications (1)

Publication Number Publication Date
CN215085562U true CN215085562U (en) 2021-12-10

Family

ID=79340153

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120459933.2U Active CN215085562U (en) 2021-03-03 2021-03-03 Environment-friendly purification and separation device for flue gas

Country Status (1)

Country Link
CN (1) CN215085562U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115253596A (en) * 2022-08-30 2022-11-01 萍乡市石化填料有限责任公司 Molecular sieve concentration rotating wheel for energy-saving and environment-friendly treatment of high-temperature flue gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115253596A (en) * 2022-08-30 2022-11-01 萍乡市石化填料有限责任公司 Molecular sieve concentration rotating wheel for energy-saving and environment-friendly treatment of high-temperature flue gas
CN115253596B (en) * 2022-08-30 2023-08-25 萍乡市石化填料有限责任公司 Molecular sieve concentration rotating wheel for high-temperature flue gas energy-saving environment-friendly treatment

Similar Documents

Publication Publication Date Title
CN215085562U (en) Environment-friendly purification and separation device for flue gas
CN211585710U (en) FFU air filter unit for purification workshop
CN112856469A (en) High-efficiency industrial smoke energy-saving purification device
CN112648698A (en) Ventilation energy-saving system of green building
CN215062687U (en) Anion air purification device
CN111991971B (en) Spiral disturbance type automatic dust brushing and removing purification device
CN210485929U (en) Air purifier for large-area indoor use
CN211864478U (en) Absorption tower for multistage purification of formaldehyde production
CN209877214U (en) Novel medical instrument operation air purification device
CN209809758U (en) Air purification device of intelligent dust-free workshop
CN112823848A (en) Industrial waste gas purification device
CN111760385A (en) Tunnel engineering air purification system
CN205208668U (en) Noiseless oil smoke of easily overhauling purifies all -in -one
CN221005354U (en) A ventilation equipment for building engineering building is built in room
CN209034004U (en) A kind of wet scrubber of adjustable variable air rate
CN114000964B (en) Noise reduction device of ship engine
CN209765312U (en) Adjustable electrical control device
CN220005353U (en) Workshop purifier provided with rotary dust hood
CN215610199U (en) Dust collector for building environment and equipment engineering
CN219722282U (en) Dustproof device for environmental protection equipment convenient to detach
CN219784142U (en) Gas purifier for preparing potassium perchlorate
CN220379929U (en) Fresh air purifier of multichannel formula fresh air purifier shell frame
CN212188511U (en) Low-energy-consumption negative ion purification device
CN208436579U (en) A kind of dust-extraction unit of thermal power generation boiler
CN216537612U (en) Environment-friendly powder dust collecting device for color concrete production

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant