CN110345094B - High-speed centrifugal blower adopting double-support structure - Google Patents
High-speed centrifugal blower adopting double-support structure Download PDFInfo
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- CN110345094B CN110345094B CN201910674323.1A CN201910674323A CN110345094B CN 110345094 B CN110345094 B CN 110345094B CN 201910674323 A CN201910674323 A CN 201910674323A CN 110345094 B CN110345094 B CN 110345094B
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- pipe
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- cooling water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention provides a high-speed centrifugal blower adopting a double-support structure, which comprises: the cooling device comprises an air cooling pipe, a branch pipe, a filter cylinder B, a control valve B, a cooling water tank, a cooling jacket and a transverse pipe; the cooling device is characterized in that the air cooling pipes at two ends of the filter cylinder B are respectively connected with a control valve B, the air cooling pipes penetrate into the bottom of the cooling water tank and are connected to the bottom of the ring pipe, the cooling jacket is arranged on the top side of the cooling water tank and sleeved on the outer side of the motor, a sealing ring is adhered to the position, in contact with the motor, of the outer side of the cooling jacket, and the transverse pipes are annularly arranged on the inner wall of the cavity structure. The cooling water tank is characterized in that the cooling water tank is arranged in the cooling water tank, the air cooling pipe is connected with the cooling water tank through a connecting pipe, the connecting pipe is connected with the cooling water tank through a connecting pipe, the cooling water tank is arranged in the cooling water tank, the connecting pipe is connected with the cooling water tank through a connecting pipe, and the connecting pipe is connected with the cooling water tank.
Description
Technical Field
The invention relates to the technical field of blowers, in particular to a high-speed centrifugal blower adopting a double-support structure.
Background
The blower operates eccentrically by means of offset rotors in the cylinder and causes the volume change between the vanes in the rotor slots to draw in, compress and eject air, the transport medium being predominantly clean air, clean gas, sulfur dioxide and other inert gases. Other flammable, explosive, corrosive, toxic and special gases can be produced and conveyed according to requirements.
High-speed air-blower is at the operation in-process, and the motor operating temperature who is connected with it is often higher, is difficult to timely heat dissipation, leads to the radiating effect of motor not good, needs the fan to stop the operation when going out filter equipment to fan inlet scoop and clearing up, and waste time has still reduced the work efficiency problem.
Disclosure of Invention
Problem (A)
In summary, the present invention provides a high-speed centrifugal blower with a dual-support structure, which solves the problems of poor heat dissipation effect of the motor, time waste and reduced work efficiency due to the need of stopping the operation of the blower when cleaning the filter device at the air suction inlet of the blower through the improvement of structure and functionality.
(II) technical scheme
The invention provides a high-speed centrifugal blower adopting a double-support structure, which utilizes a cooling air pipe to blow cooling air to a motor, reduces the temperature of the cooling air through a cooling water tank, and utilizes another group of pipes to keep the state of continuously sucking or conveying the cooling air when a filter cartridge is cleaned. The high-speed centrifugal blower adopting the double-support structure provided by the invention specifically comprises the following components: the cooling device comprises a bottom plate, a support frame plate, a blower, a motor, an air suction pipe, a filter cartridge A, a control valve A, an air cooling pipe, a branch pipe, a filter cartridge B, a control valve B, a cooling water tank, a stepped groove, a cover plate, a drain pipe, a cooling jacket, a cavity structure, a transverse pipe, a cooling air hole, a through pipe, a sealing ring, an exhaust hole and a ring pipe; the air inlet of the air blower is connected with an air suction pipe, the air suction pipe is sequentially connected with a filter cylinder A and a control valve A through flanges, the bottom side of the air blower and the two ends of the air suction pipe are respectively provided with a support frame plate, the rear end of the motor is also provided with a support frame plate, one end of an air cooling pipe is connected to an air outlet pipe of the air blower, the air cooling pipe is provided with a filter cylinder B, the air cooling pipes at the two ends of the filter cylinder B are respectively connected with the control valve B, the air cooling pipes penetrate into the bottom of a cooling water tank and are connected to the bottom of a ring pipe, one end of the top side of the cooling water tank is provided with a step groove, a cover plate is placed inwards and clamped into the step groove, the cooling jacket is provided with the top side of the cooling water tank and is sleeved on the outer side of the motor, the outer side of the cooling jacket is pasted with a sealing ring at the position where the motor is contacted with the inner side of the cooling jacket, and the transverse pipes are annularly arranged on the inner wall of the cavity structure, two rows of exhaust holes are formed in the oblique direction of the top of the cooling jacket, and the bottom of the end of the cooling water tank is connected with a drain pipe.
Furthermore, the aspiration channel is equipped with two sets and is U type structure, and the structure and the adapting unit of two sets of aspiration channels are all the same.
Furthermore, the two ends of the control valve B on the outer side of the filter cartridge B on the air cooling pipe are respectively communicated with the branch pipe, and the filter cartridge B and the two groups of control valves B are also arranged on the branch pipe.
Furthermore, an air cooling pipe is also arranged at the bottom side of the interior of the cooling water tank, and the air cooling pipe is of a continuous bending connection structure.
Furthermore, the bottom side surface of the cooling jacket is of a horizontal structure, and the bottom side surface of the cooling jacket is attached to the top of the cooling water tank.
Further, the heat-conducting plate outside the motor is sleeved on the inner side of the cavity structure on the inner side of the cooling sleeve.
Furthermore, the transverse pipe is communicated with the circular pipe through a through pipe, and three rows of cooling air holes are formed in the outer wall of the front side of the transverse pipe.
Furthermore, a 15cm gap is formed between the front end of the transverse pipe and the outer wall of the motor.
(III) advantageous effects
The invention provides a high-speed centrifugal blower adopting a double-support structure, wherein an air cooling pipe is connected to an air outlet pipeline of the blower, and air is guided into a transverse pipe in a cooling jacket through the pipeline to be blown out, so that the temperature of a motor is reduced, the air cooling pipe penetrates into the bottom of the inner side of a cooling water tank and is arranged in a continuous bending shape, the air temperature in the air cooling pipe can be reduced, and the heat dissipation effect of the motor is further improved.
Secondly, be provided with the cartridge filter on the forced air cooling pipe, can filter the wind in the forced air cooling pipe to set up the branch pipe on the forced air cooling pipe, the valve on the branch pipe is opened to the accessible, closes the valve on the forced air cooling person of being responsible for, clears up or changes the cartridge filter on being responsible for, and utilizes the cartridge filter on the branch pipe to continue to filter the cooling air, keeps continuing to carry the state of cooling air, improves the working life of motor, need not to shut down, and it is more convenient to use.
Then, through the aspiration channel that sets up the U type form, when utilizing the cartridge filter on the aspiration channel to improve and inhale the inside wind cleanliness of fan, can close the valve on a set of aspiration channel to can change the cartridge filter on this group's aspiration channel, need not stop the operation of fan, can clear up, change work.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of another side view of the cover plate of the present invention after being upwardly removed;
FIG. 3 is an enlarged schematic view of the invention at A;
FIG. 4 is a rear side view of the present invention;
FIG. 5 is an enlarged view of the structure at B in the present invention;
FIG. 6 is a schematic view showing a structure of a cooling water tank and an air-cooling pipe connection in the present invention;
FIG. 7 is a schematic view showing the internal structure of a cooling water tank according to the present invention;
fig. 8 is a schematic view of the inside structure of the cooling jacket of the present invention.
Fig. 9 is an enlarged schematic view of the structure at C of the present invention.
In fig. 1 to 9, the correspondence between the part names or lines and the reference numbers is:
the device comprises a bottom plate-1, a support frame plate-101, a blower-2, a motor-3, an air suction pipe-4, a filter cylinder A-401, a control valve A-402, an air cooling pipe-5, a branch pipe-501, a filter cylinder B-502, a control valve B-503, a cooling water tank-6, a stepped groove-601, a cover plate-602, a drain pipe-603, a cooling jacket-7, a cavity structure-701, a transverse pipe-702, a cooling air hole-7021, a through pipe-7022, a sealing ring-703, an exhaust hole-704 and a ring pipe-8.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Please refer to fig. 1 to 9
In order to solve the problems that the heat dissipation effect of a motor is poor in the prior art, a fan needs to stop running when a filter device at an air suction inlet of the fan is cleaned, time is wasted and working efficiency is reduced, the invention provides a high-speed centrifugal blower adopting a double-support structure, cooling air is blown to the motor by a cooling air pipe, the temperature of the cooling air is reduced by a cooling water tank, and the state of continuously sucking air or conveying the cooling air is kept by another group of pipes when a filter cartridge is cleaned, which comprises the following steps: the cooling device comprises a bottom plate 1, a support frame plate 101, a blower 2, a motor 3, an air suction pipe 4, a filter cartridge A401, a control valve A402, an air cooling pipe 5, a branch pipe 501, a filter cartridge B502, a control valve B503, a cooling water tank 6, a stepped groove 601, a cover plate 602, a drain pipe 603, a cooling jacket 7, a cavity structure 701, a transverse pipe 702, a cooling air hole 7021, a through pipe 7022, a sealing ring 703, an exhaust hole 704 and a ring pipe 8; the air inlet of the air blower 2 is connected with an air suction pipe 4, the air suction pipe 4 is sequentially connected with a filter cartridge A401 and a control valve A402 through flanges, the bottom side of the air blower 2 and the two ends of the air suction pipe 4 are respectively provided with a support frame plate 101, the rear end of the motor 3 is also provided with the support frame plate 101, one end of the air cooling pipe 5 is connected with an air outlet pipe of the air blower 2, the air cooling pipe 5 is provided with a filter cartridge B502, the air cooling pipes 5 at the two ends of the filter cartridge B502 are respectively connected with a control valve B503, the air cooling pipes 5 penetrate into the bottom of the cooling water tank 6 and are connected with the bottom of the ring pipe 8, one end of the top side of the cooling water tank 6 is provided with a step groove 601, the cover plate 602 is placed inwards and clamped into the step groove 601, the cooling jacket 7 is arranged on the top side of the cooling water tank 6 and sleeved outside the motor 3, and a sealing ring 703 is adhered to the part of the outside of the cooling jacket 7, which is contacted with the motor 3, the inside of cooling jacket 7 is equipped with cavity structure 701, and violently manage 702 and be the cyclic annular range on cavity structure 701's inner wall, be equipped with two rows of exhaust holes 704 on the oblique direction at cooling jacket 7 top, condenser tube 603 is still connected to the end bottom of condenser tube 6.
Wherein, aspiration channel 4 is equipped with two sets ofly and is U type structure, and the structure and the adapting unit of two sets of aspiration channels 4 are all the same, when clearing up or changing cartridge filter A401 on a set of aspiration channel 4, only need with this group control valve A402 on aspiration channel 4 close can to do not influence the normal work of fan 2.
Wherein, the both ends of the control valve B503 outside the filter cartridge B502 on the air-cooled pipe 5 are respectively communicated with the branch pipe 501, and the branch pipe 501 is also provided with the filter cartridge B502 and two sets of control valves B503, when the filter cartridge B502 on the air-cooled pipe 5 needs to be cleaned or replaced, only the control valve B503 on the branch pipe 501 needs to be opened and the control valve B503 on the air-cooled pipe 5 needs to be closed, the filter cartridge B502 on the branch pipe 501 can be used for filtering the cooling air, the state of continuously conveying the cooling air is kept, and the service life of the motor 3 is prolonged.
Wherein, the inside bottom side of cooling water tank 6 also arranges air-cooled pipe 5, and this air-cooled pipe is continuous bending connection structure, increases the dwell time of cooling air at cooling water tank 6 bottom side, further reduces the temperature of cooling air to the operating temperature of better reduction motor 3.
Wherein, the bottom side of the cooling jacket 7 is a horizontal structure, and the bottom side of the cooling jacket 7 is attached to the top of the cooling water tank 6.
Wherein, the heat-conducting plate suit in the motor 3 outside is inboard with the cavity structure 701 in the cooling jacket 7 inboard, is convenient for carry out the heat transfer through the heat-conducting plate in the motor 3 outside and cooling air to reduce the temperature in the motor 3.
Wherein, the horizontal pipe 702 is communicated with the circular pipe 8 through a through pipe 7022, and the outer wall of the front side of the horizontal pipe 702 is provided with three rows of cooling air holes 7021, the cooling air in the air-cooled pipe 5 can be sent into the circular pipe 8 and flows into the horizontal pipe 702 through the through pipe 7022, thereby being sprayed on the surface of the motor 3 through the cooling air holes 7021.
A15 cm gap is formed between the front end of the transverse pipe 702 and the outer wall of the motor 3, so that cooling air can flow between the cooling jacket 7 and the outer surface of the motor 3 conveniently.
The specific use mode and function of the embodiment are as follows: in the invention, through arranging the U-shaped air suction pipe 4, the cleanliness of air sucked into the fan is improved by using the filter cylinder A401 on the air suction pipe 4, simultaneously, the control valve A402 on a group of air suction pipes 4 can be closed, thereby the filter cylinder A401 on the group of air suction pipes 4 can be replaced, the cleaning and replacing work can be carried out without stopping the operation of the fan 2, the air cooling pipe 5 is connected on the air outlet pipeline of the fan, the air is guided into the transverse pipe 702 in the cooling jacket 7 through the pipeline and blown out, thereby the temperature of the motor 3 is reduced, the air cooling pipe 5 penetrates into the bottom of the inner side of the cooling water tank 6 and is arranged in a continuous bending shape, the air temperature in the air cooling pipe 5 can be reduced, the heat dissipation effect of the motor 3 is further improved, the filter cylinder B502 arranged on the air cooling pipe 5 can filter the air in the air cooling pipe 5, and the branch pipe 501 is arranged on the air cooling pipe 5, the accessible opens the control valve B503 on the branch pipe, closes the valve that the forced air cooling was responsible for, clears up or changes the cartridge filter B502 on being responsible for to utilize the cartridge filter B502 on the branch pipe 501 to continue to filter the cooling air, keep continuing to carry the state of cooling air, improve motor 3's working life, need not to shut down, it is more convenient to use.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (2)
1. The utility model provides an adopt two bearing structure's high-speed centrifugal blower, utilize the cooling air pipe with the cooling wind blow to the motor on to reduce the temperature of cooling wind through coolant tank, when clearing up the cartridge filter, utilize another group pipe to keep continuing to induced draft or carry the state of cooling wind, a serial communication port, include: the air-cooling type air conditioner comprises a bottom plate (1), a support frame plate (101), an air blower (2), a motor (3), an air suction pipe (4), a filter cartridge A (401), a control valve A (402), an air-cooling pipe (5), a branch pipe (501), a filter cartridge B (502), a control valve B (503), a cooling water tank (6), a stepped groove (601), a cover plate (602), a drain pipe (603), a cooling jacket (7), a cavity structure (701), a transverse pipe (702), a cooling air hole (7021), a through pipe (7022), a sealing ring (703), an exhaust hole (704) and a circular pipe (8); the air inlet of the air blower (2) is connected with an air suction pipe (4), the air suction pipe (4) is sequentially connected with a filter cartridge A (401) and a control valve A (402) through flanges, the bottom side of the air blower (2) and the two ends of the air suction pipe (4) are respectively provided with a support frame plate (101), the rear end of a motor (3) is also provided with the support frame plate (101), one end of an air cooling pipe (5) is connected with an air outlet pipe of the air blower (2), the air cooling pipe (5) is provided with a filter cartridge B (502), the air cooling pipes (5) at the two ends of the filter cartridge B (502) are respectively connected with a control valve B (503), the air cooling pipes (5) penetrate into the bottom of a cooling water tank (6) and are connected to the bottom of a ring pipe (8), one end of the top side of the cooling water tank (6) is provided with a step groove (601), and a cover plate (602) is inwardly placed and clamped into the step groove (601), the cooling jacket (7) is arranged on the top side of the cooling water tank (6) and sleeved on the outer side of the motor (3), a sealing ring (703) is adhered to a position, in contact with the motor (3), of the outer side of the cooling jacket (7), a cavity structure (701) is arranged on the inner side of the cooling jacket (7), transverse pipes (702) are annularly arranged on the inner wall of the cavity structure (701), two rows of exhaust holes (704) are formed in the top of the cooling jacket (7) in the oblique direction, and the bottom of the end of the cooling water tank (6) is further connected with a drain pipe (603);
the two groups of the air suction pipes (4) are arranged and are in U-shaped structures, and the structures and the connecting parts of the two groups of the air suction pipes (4) are the same;
two ends of an outer side control valve B (503) of a filter cartridge B (502) on the air cooling pipe (5) are respectively communicated with the branch pipe (501), and the filter cartridge B (502) and two groups of control valves B (503) are also arranged on the branch pipe (501);
the bottom side in the cooling water tank (6) is also provided with an air-cooled pipe (5) which is of a continuous bending connection structure;
the bottom side surface of the cooling jacket (7) is of a horizontal structure, and the bottom side surface of the cooling jacket (7) is attached to the top of the cooling water tank (6);
the cavity structure (701) on the inner side of the cooling jacket (7) is used for sleeving the heat-conducting plate on the outer side of the motor (3) on the inner side of the cavity structure;
the horizontal pipe (702) is communicated with the circular pipe (8) through a through pipe (7022), and three rows of cooling air holes (7021) are formed in the outer wall of the front side of the horizontal pipe (702).
2. The high-speed centrifugal blower employing a dual support structure according to claim 1, wherein: a15 cm gap is formed between the front end of the transverse pipe (702) and the outer wall of the motor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910674323.1A CN110345094B (en) | 2019-07-25 | 2019-07-25 | High-speed centrifugal blower adopting double-support structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910674323.1A CN110345094B (en) | 2019-07-25 | 2019-07-25 | High-speed centrifugal blower adopting double-support structure |
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| CN110345094A CN110345094A (en) | 2019-10-18 |
| CN110345094B true CN110345094B (en) | 2021-08-06 |
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| CN113623280B (en) * | 2021-10-13 | 2021-12-17 | 南通德惠风机有限公司 | Single-stage double-suction type centrifugal ventilator cleaning device |
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| JPS5248054U (en) * | 1975-09-29 | 1977-04-05 | ||
| CN201359360Y (en) * | 2008-10-20 | 2009-12-09 | 桐乡中欣化纤有限公司 | Lateral blow air conditioning switching device |
| CN204447531U (en) * | 2014-12-31 | 2015-07-08 | 大港油田集团有限责任公司 | Continuous firing formula filtering cloth jar |
| CN108893569A (en) * | 2018-06-14 | 2018-11-27 | 山东钢铁股份有限公司 | A kind of blast furnace blast moisture separator and its dehumidification method |
| CN209083609U (en) * | 2018-11-05 | 2019-07-09 | 苏州格力士实业有限公司 | Dustproof waterproof type negative-pressure air fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3309378A (en) * | 1963-11-22 | 1967-03-14 | Smith Kline French Lab | Novel nitropyrrylheterocyclic derivatives |
| KR101765583B1 (en) * | 2014-07-29 | 2017-08-07 | 현대자동차 주식회사 | Cooling unit of air compressure |
| CN108547782A (en) * | 2018-05-04 | 2018-09-18 | 竺秋君 | A kind of noise of equipment improvement acoustic hood |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4968304A (en) * | 1972-09-05 | 1974-07-02 | ||
| JPS5248054U (en) * | 1975-09-29 | 1977-04-05 | ||
| CN201359360Y (en) * | 2008-10-20 | 2009-12-09 | 桐乡中欣化纤有限公司 | Lateral blow air conditioning switching device |
| CN204447531U (en) * | 2014-12-31 | 2015-07-08 | 大港油田集团有限责任公司 | Continuous firing formula filtering cloth jar |
| CN108893569A (en) * | 2018-06-14 | 2018-11-27 | 山东钢铁股份有限公司 | A kind of blast furnace blast moisture separator and its dehumidification method |
| CN209083609U (en) * | 2018-11-05 | 2019-07-09 | 苏州格力士实业有限公司 | Dustproof waterproof type negative-pressure air fan |
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| CN110345094A (en) | 2019-10-18 |
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