CN110280080A - Mechanical pulsing ash cleaning and dust removing device - Google Patents
Mechanical pulsing ash cleaning and dust removing device Download PDFInfo
- Publication number
- CN110280080A CN110280080A CN201910638963.7A CN201910638963A CN110280080A CN 110280080 A CN110280080 A CN 110280080A CN 201910638963 A CN201910638963 A CN 201910638963A CN 110280080 A CN110280080 A CN 110280080A
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- China
- Prior art keywords
- newel
- filter cylinder
- circular plate
- piston
- dust removing
- 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.)
- Granted
Links
- 239000000428 dust Substances 0.000 title claims abstract description 18
- 238000004140 cleaning Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 241000233855 Orchidaceae Species 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000950638 Symphysodon discus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- HOQADATXFBOEGG-UHFFFAOYSA-N isofenphos Chemical compound CCOP(=S)(NC(C)C)OC1=CC=CC=C1C(=O)OC(C)C HOQADATXFBOEGG-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B01D46/0002—Casings; Housings; Frame constructions
-
- 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
- B01D46/66—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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of mechanical pulsing ash cleaning and dust removing devices, comprising: shell；The shell is divided into upper housing and lower case, multiple through-holes is opened up on the sealing plate by sealing plate；Multiple filter elements are thrown into vertically in the shell, and a filter element is mounted in a through-hole, and the filter element includes: filter cylinder, are fastened in the through-hole；Newel, inner hollow, the newel is interior to be equipped with reciprocating mechanism, and the lower end of the reciprocating mechanism is connected with relieving mechanism, and the upper end of the relieving mechanism connecting spring, the lower end of the spring is fixed on the bottom of the filter cylinder；Piston passes through the newel and is connected on the relieving mechanism.The present invention has the beneficial effect for saving the energy, Anti-dew.
Description
Technical field
The present invention relates to filter collector fields.It is more particularly related to a kind of mechanical pulsing ash cleaning and dust removing device.
Background technique
Filter collector is the dedusting technology being filtered using the filter cloth or filter plate of certain shapes to dust, and dust is in mistake
The stop and accumulation of filtering material surface will affect the draught capacity of filtering material, thus deashing is being to maintain filter collector for a long time just
The key link often run.Common purge mode has mechanical ash removing, pulse jetting deashing, reverse gas cleaning and sound wave ashing etc.,
It is wherein best with the effect of pulse jetting deashing, using also the most universal.
The filter collector of pulse jetting deashing exists all through compressed air (usually 0.15~0.7Mpa) at present
High speed sprays into filter bag or shell in extremely short time, and filter bag is made to generate expansion and impact vibration sharply, shape by sack to bottom
Dust accumulation effect is fallen clearly at very strong.In existing pulse jetting deashing technology, mainly using compressed air as power source, but compress empty
The acquisition of gas mainly based on being driven by electricity, although this is easily achieved, also there is deficiency, is primarily present both sides problem,
First is that the utilization rate of energy is very low, after electricity obtains compressed air using multiple conversion as secondary energy sources with current energy
Source structure must consume the non-renewable energy such as a large amount of coal, and generate a large amount of carbon dioxide isothermal chamber gas and be discharged into atmosphere
In, second is that containing a large amount of steam in air, upon compression, the facilities such as dehydration are needed, it is lower in the temperature in cold district winter,
The moisture condensation or frost damage that will cause filtering material and pulse jet equipment after moisture condensation in compressed air, although installing
Insulation can be used in the process, but this can not be avoided the generation of above situation completely, in the pulse blowing type of cold district
The reason of failure of filter collector or parts damages majority are this respects is caused.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of mechanical pulsing ash cleaning and dust removing device, particularly as being using after spring energy-storage
The mode of quick release generates mechanical pulsing, has the effect of saving the energy and consumptive material, Anti-dew.
In order to realize these purposes and other advantages according to the present invention, a kind of mechanical pulsing ash cleaning and dust removing device is provided,
Include:
Shell；
The shell is divided into upper housing and lower case, multiple through-holes is opened up on the sealing plate by sealing plate；
Multiple filter elements are thrown into vertically in the shell, and a filter element is mounted in a through-hole, described
Filter element includes:
Filter cylinder is fastened in the through-hole, the open top bottom end closure of the filter cylinder；
Newel, inner hollow, the newel and the filter cylinder are coaxially disposed, and are equipped in the newel and are above moved down
Motivation structure, the reciprocating mechanism move up and down along the setting direction of the newel, the lower end of the reciprocating mechanism
It is connected with relieving mechanism, the upper end of the relieving mechanism connecting spring, the lower end of the spring is fixed on the bottom of the filter cylinder；
Piston passes through the newel and is connected on the relieving mechanism, and the filter cylinder is divided into up and down by the piston
Two spaces, the piston is configured with check valve, when downward high-speed motion, the closed check valve, and the piston upwards
When, the check valve is opened.
Preferably, upper end, the lower end that the upper end of the newel is higher than the filter cylinder are fixed on the lower end of the filter cylinder.
Preferably, the reciprocating mechanism includes flange, first motor, the first screw rod, and the flange is arranged in institute
State the upper end of newel, the flange is fixedly connected on the filter cylinder and with the filter cylinder there are gap, the flange it is upper
The fixed first motor in end, first screw rod that the first motor driving is located in the newel move up and down.
Preferably, the relieving mechanism includes upper-part and lower part, and the upper-part is electromagnet, the lower component
For iron block, the upper-part is connected to the lower end of first screw rod, and first screw rod and the upper-part are at the center
It is centrally located in column and is not contacted with inner sidewall.
Preferably, the piston includes the first Circular Plate, column casing, the second Circular Plate, tube plug, the first annulus sleeve-board
It is located at the newel lateral wall, a pair of of strip hole is vertically equipped in the newel, has a plate among first Circular Plate
Body is fastened in a pair of of strip hole, is slided up and down along a pair of of strip hole, the upper end of the column casing connect first Circular Plate, under
End connects second Circular Plate, and the tube plug is set on the outside of the column casing, first Circular Plate and second annulus
The outer diameter of plate is respectively less than the outer diameter of the tube plug, and the difference of the internal-and external diameter of the tube plug is slightly less than the filter cylinder internal diameter and the column casing
Outer diameter difference, the tube plug boring, the tube plug upper surface be less than first Circular Plate outer diameter in be equipped with it is multiple
First through hole, the tube plug lower surface, which is greater than at the second Circular Plate outer diameter, is equipped with multiple second through-holes.
Preferably, the outer diameter of the newel is less than the 1/3 of the filter cylinder internal diameter.
The present invention is include at least the following beneficial effects: compared to pulse of compressed air jetting deashing technology, of the invention is clear
Grey effect is good, both can be used alone, and can also use side by side on same deduster, is blown phase with pulse of compressed air
Than the consumed energy of deashing is reduced, and especially suitable for middle-size and small-size deduster, is not needed arrangement steam line and system, is avoided
The moisture condensation of dust removal component and frost are damaged brought by condensing water vapor in compressed air.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the one of technical solution mechanical pulsing ash cleaning and dust removing device of the present invention；
Fig. 2 is the structural schematic diagram of the one of technical solution filter element of the present invention；
Fig. 3 is the structural schematic diagram of the one of technical solution piston of the present invention；
Fig. 4 is the structural schematic diagram of the one of technical solution filter element section components of the present invention；
Fig. 5 is the structural schematic diagram of the one of technical solution relieving mechanism of the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
In the description of the present invention, the orientation of the instructions such as term "vertical", "horizontal", "top", "bottom", "inner", "outside" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, not
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
As shown in Figs. 1-5, the present invention provides a kind of mechanical pulsing ash cleaning and dust removing device, comprising:
Shell 1 forms sealing space, while protecting the structure in shell 1；
Sealing plate 2 divides the shell 1 for upper housing and lower case, opens up multiple through-holes on the sealing plate 2, side
Just the installation of filter element 3；
Multiple filter elements 3 are thrown into vertically in the shell 1, and a filter element 3 is mounted in a through-hole,
The filter element 3 includes:
Filter cylinder 31 is fastened in the through-hole, the open top bottom end closure of the filter cylinder 31；
Newel 32, inner hollow, the newel 32 are coaxially disposed with the filter cylinder 31, and the newel 32 is fixed
In the filter cylinder 31, reciprocating mechanism 33 moving up and down, the reciprocating mechanism are equipped in the newel 32
33 do not contact with the bottom of the filter cylinder 31, the reciprocating mechanism 33 such as downward telescopic rod of telescopic direction, piston rod stretch to
Under cylinder, the lower end of the reciprocating mechanism 33 is connected with relieving mechanism 34, and it is separable that the relieving mechanism 34, which divides,
Magnet and ironwork, ironwork are located at the lower section of magnet, and ironwork is iron block, discus etc., the upper end of ironwork connecting spring 35,
Magnet is connect with the reciprocating mechanism 33, and ironwork is connect with the spring 35, and the spring 35 is in the newel 32
Interior flexible up and down, the spring 35 is fixed on 31 bottom of filter cylinder；
Piston 36, passes through the lower end that the newel 32 is connected to the relieving mechanism 34, and the newel 32 is equipped with
The vertical strip hole of opposite a pair, the piston 36 pass through strip hole and connect with ironwork, and the piston 36 is by the filter cylinder
31 points are upper and lower two spaces；
In the above-mentioned technical solutions, the through-hole that filter element 3 passes through on sealing plate 2 is mounted on sealing plate 2, works as ironwork
When no longer moving down, reciprocating mechanism 33 is moved down, and magnet generates attraction with ironwork and is combined together, and moves up and down machine
Structure 33 upwards shrink, drive relieving mechanism 34 move up, spring 35 is gradually increased the pulling force of ironwork, when magnet with it is iron
When attraction between product is less than the pulling force of spring 35 below ironwork, magnet is separated with ironwork, and ironwork moves down, band
Piston 36 moves down, and piston 36 continues to move down under the action of spring 35, is located under piston 36 in Fast Compression filter cylinder 31
The air of side, compressed air generate power to the side wall of filter cylinder 31, achieve the effect that 31 deashing of filter cylinder, when ironwork no longer moves down
When, reciprocating mechanism 33 moves down, and magnet generates attraction with ironwork and is combined together, and carries out the clear of next circulation
Grey process saves the energy, applied widely.
In another technical solution, upper end, the lower end that the upper end of the newel 32 is higher than the filter cylinder 31 are fixed
In the lower end of the filter cylinder 31, the space of compressed air is bigger.
In another technical solution, the reciprocating mechanism 33 includes flange 332, first motor 331, first
Bar 333, the flange 332 are arranged in the upper end of the newel 32, the flange 332 be fixedly connected on the filter cylinder 31 and
There are gap, the fixed first motor 331 in the upper end of the flange 332, the drivings of first motor 331 with the filter cylinder 31
First screw rod 333 in the newel 32 moves up and down, and provides the first screw rod 333 of energization, drives machine for releasing
Structure 34 moves up and down.
In another technical solution, the relieving mechanism 34 includes upper-part 341 and lower component 342, the top
Part 341 is electromagnet, and the lower component 342 is iron block, and the upper-part 341 is connected to the lower end of first screw rod 333, institute
The first screw rod 333 and the upper-part 341 is stated to be centrally located in the newel 32 and do not contact with inner sidewall, if first
Bar 333 powers off, and upper-part 341 loses its reliss with lower component 342, moves down, upper-part 341 is arranged and is powered first
Bar 333, the height promoted in newel 32 conducive to control relieving mechanism 34.
In another technical solution, the vertical section of 1 lower part of shell is in inverted ladder type, and 1 lower part of shell is allowed to be not easy
Deposition gases.
In another technical solution, the outer diameter of the newel 32 is less than the 1/3 of 31 internal diameter of filter cylinder.
In another technical solution, as shown in figure 4, the reciprocating mechanism 33 includes the second motor and lower bands
Second screw rod 37 jaggy, the relieving mechanism 34 be buckle structure, the relieving mechanism 34 include disk 38, hinged shaft 40,
Pressure spring 39 and wedge 41, the disk 38 are located in the newel 32, when the wedge 41 arrives top dead centre, centered on top dead centre
The upper end of 32 strip hole of column, wedge 41 are opened out outward from the indentation, there of the second screw rod 37, are separated with the second screw rod 37, and pressure spring 39 will
Wedge 41 retracts vertical position, and disk 38 is moved downward with piston 36, carries out deashing operation to 31 side wall of filter cylinder, and at this time second
Screw rod 37 moves downward, and 37 lower end of the second screw rod squeezes wedge 41, engages wedge 41 and the notch of the second screw rod 37 automatically, the
Two screw rods 37 move up, and wedge 41, which follows, to be moved up, and disk 38 and piston 36 is driven to move up, until wedge 41 is moved up to top dead centre, into
The next circulate operation of row, the height promoted in newel 32 conducive to control relieving mechanism 34.
In another technical solution, as shown in figure 5, the piston 36 includes the first Circular Plate 42, column casing 43, second
Circular Plate, tube plug 44, first Circular Plate 42 are set in 32 lateral wall of newel, have among first Circular Plate 42
One plate body is fastened at the strip hole of newel 32, can be moved up and down by the strip hole of newel 32, the upper end of the column casing 43
First Circular Plate 42, lower end connection second Circular Plate are connected, the tube plug 44 is set in 43 outside of column casing, institute
The outer diameter for stating the first Circular Plate 42 and second Circular Plate is respectively less than the outer diameter of the tube plug 44, the internal-and external diameter of the tube plug 44
Difference be slightly less than 31 internal diameter of filter cylinder and the column casing 43 outer diameter difference, 44 boring of tube plug, the tube plug 44
Upper surface, which is less than in the outer diameter of first Circular Plate 42, is equipped with multiple first through hole 45, and 44 lower surface of tube plug is greater than described
Multiple second through-holes are equipped at second Circular Plate outer diameter, when so that relieving mechanism 34 lifting piston 36 upwards, tube plug 44 and second
Circular Plate contact, the air that about 36 two sides of piston can be kept to be located in filter cylinder 31 keep circulation, make in spring 35 and gravity
When being moved down with drop-down piston 36 is whole, tube plug 44 is contacted with the first Circular Plate 42, and it is logical that the first Circular Plate 42 blocks multiple first
Hole 45 makes 44 upper and lower atmosphere draught-free of tube plug, plays the role of preferable deashing to filter cylinder 31 when moving down.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (6)
1. mechanical pulsing ash cleaning and dust removing device characterized by comprising
Shell；
The shell is divided into upper housing and lower case, multiple through-holes is opened up on the sealing plate by sealing plate；
Multiple filter elements are thrown into vertically in the shell, and a filter element is mounted in a through-hole, the filtering
Unit includes:
Filter cylinder is fastened in the through-hole, the open top bottom end closure of the filter cylinder；
Newel, inner hollow, the newel and the filter cylinder are coaxially disposed, and are equipped in the newel and are moved up and down machine
Structure, the reciprocating mechanism move up and down along the setting direction of the newel, the lower end connection of the reciprocating mechanism
There is relieving mechanism, the upper end of the relieving mechanism connecting spring, the lower end of the spring is fixed on the bottom of the filter cylinder；
Piston passes through the newel and is connected on the relieving mechanism, and the filter cylinder is divided into two up and down by the piston
Space, the piston are configured with check valve, and when the downward high-speed motion of the piston, the closed check valve, the piston is upward
When movement, the check valve is opened.
2. mechanical pulsing ash cleaning and dust removing device as described in claim 1, which is characterized in that the upper end of the newel is higher than described
Upper end, the lower end of filter cylinder are fixed on the lower end of the filter cylinder.
3. mechanical pulsing ash cleaning and dust removing device as claimed in claim 2, which is characterized in that the reciprocating mechanism includes method
The upper end of the newel is arranged in orchid, first motor, the first screw rod, the flange, and the flange is fixedly connected on the filter
There are gaps on cylinder and with the filter cylinder, and the fixed first motor in the upper end of the flange, the first motor, which drives, to be located at
First screw rod in the newel moves up and down.
4. mechanical pulsing ash cleaning and dust removing device as claimed in claim 3, which is characterized in that the relieving mechanism include upper-part and
Lower component, the upper-part are electromagnet, and the lower component is iron block, and the upper-part is connected under first screw rod
End, first screw rod and the upper-part are centrally located in the newel and do not contact with inner sidewall.
5. mechanical pulsing ash cleaning and dust removing device as described in claim 1, which is characterized in that the piston include the first Circular Plate,
Column casing, the second Circular Plate, tube plug, first Circular Plate are set in the newel lateral wall, vertically set in the newel
There is a pair of of strip hole, there is a plate body to be fastened in a pair of of strip hole among first Circular Plate, glide along a pair of of strip hole
Dynamic, the upper end of the column casing connects first Circular Plate, lower end connects second Circular Plate, and the tube plug is set in described
On the outside of column casing, the outer diameter of first Circular Plate and second Circular Plate is respectively less than the outer diameter of the tube plug, the tube plug
The difference of internal-and external diameter is slightly less than the difference of the outer diameter of the filter cylinder internal diameter and the column casing, the tube plug boring, in the tube plug
Surface, which is less than in the outer diameter of first Circular Plate, is equipped with multiple first through hole, and the tube plug lower surface is greater than second annulus
Multiple second through-holes are equipped at plate outer diameter.
6. mechanical pulsing ash cleaning and dust removing device as described in claim 1, which is characterized in that the outer diameter of the newel is less than described
The 1/3 of filter cylinder internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638963.7A CN110280080B (en) | 2019-07-16 | 2019-07-16 | Mechanical pulse ash and dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638963.7A CN110280080B (en) | 2019-07-16 | 2019-07-16 | Mechanical pulse ash and dust remover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110280080A true CN110280080A (en) | 2019-09-27 |
| CN110280080B CN110280080B (en) | 2024-05-03 |
Family
ID=68022988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910638963.7A Active CN110280080B (en) | 2019-07-16 | 2019-07-16 | Mechanical pulse ash and dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110280080B (en) |
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| CN108619808A (en) * | 2018-05-24 | 2018-10-09 | 贵州环科环境工程有限公司 | Fume recovery system |
| CN109499217A (en) * | 2018-12-29 | 2019-03-22 | 南昌大学 | A kind of shunt arteries and veins spray air filtering core and the dust-extraction unit using the filter core |
| CN109999581A (en) * | 2019-04-18 | 2019-07-12 | 杭州市粮食收储有限公司南星桥分公司 | Mobile pulse deduster |
| CN210302896U (en) * | 2019-07-16 | 2020-04-14 | 北京金帛科技有限公司 | Mechanical pulse dust-cleaning and dust-removing device |
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