CN107051046A - A kind of industrial ceramics dust arrester - Google Patents
A kind of industrial ceramics dust arrester Download PDFInfo
- Publication number
- CN107051046A CN107051046A CN201710497231.1A CN201710497231A CN107051046A CN 107051046 A CN107051046 A CN 107051046A CN 201710497231 A CN201710497231 A CN 201710497231A CN 107051046 A CN107051046 A CN 107051046A
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- Prior art keywords
- dust arrester
- chamber
- industrial ceramics
- dust
- filter
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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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/103—Curved filtering elements
-
- 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
- B01D46/66—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The present invention discloses a kind of industrial ceramics dust arrester, including tank body, filter mechanism and pneumatic spraying mechanism.Filter mechanism is arranged in tank inner chamber, and tank inner chamber is separated into the first cavity and the second cavity；Pneumatic spray equipment includes Pneumatic assembly and spray assemblies.Wherein, Pneumatic assembly includes pressure gauge, controller；Spray assemblies include water inlet, shower, cut valve soon.The industrial ceramics dust arrester of this structure, filter mechanism is tightly connected with inner tank wall face, and in the absence of gap, efficiency of dust collection is high；By Pneumatic assembly linkage spray assemblies, the automatic dust or glaze removed on filter mechanism realizes continuous operation, and utilization rate of equipment and installations height, production capacity is big；And according to the deposition degree of dust on filter mechanism or glaze, control in real time cuts the aperture size of valve, saves ejecting liquid soon, reduces dedusting cost, is especially suitable for the situation of contained dust or glaze density unevenness in different periods dusty gas.
Description
Technical field
The invention belongs to technical field of ceramic preparation, and in particular to a kind of industrial ceramics dust arrester.
Background technology
Dust arrester is commonly called as deduster, is the device of fly ash content in removing or reduction flue gas.The species of dust arrester can
Film dust-arrest device, cloud and mist dust-arrest device, cloud and mist dust-arrest device, bag-type dust collector, cyclone dust collector, wet is received to be divided into biology
Formula dust arrester, electrostatic precipitator, desulfation dust-extraction device.Applied to chemical industry, oil, metallurgy, building, mine, machinery, light textile
Deng industry.
At present, the conventional spraying dedusting device of ceramics factory, typically passes through multilayer water curtain by the air with dust or glaze,
A part of dust or glaze are filtered, then further filters by filter screen dust or glaze.But the air with dust is in spray
During, easily shower is sprayed and blocked；Furthermore, the water droplet that shower nozzle is produced is not enough to surround dust or glaze so that dedusting
Effect is not good.
Therefore, Chinese patent literature CN205796807U discloses a kind of ceramic making high effect dust cleaner, including casing,
Side is provided with charging aperture on the wall of bottom half side, and opposite side is provided with discharging opening；Casing is provided with multistage filter screen, staggeredly sets from the bottom up
Put, for adhering dust particle；Bottom half is provided with tracheae, tracheae and is uniformly distributed high pressure nozzle along its length, for inciting somebody to action
The dust granule sticked on filter screen is blown down.
The dust arrester of this structure, dusty gas enters casing by charging aperture, and under air exhauster effect, dusty gas passes through
Multistage strainer filtering so that dust or glaze in dusty gas are sticked in filter screen, by the vibration of oscillator on filter screen and
The blowing of high pressure nozzle high intensity is acted on, and thoroughly removes dust or glaze during ceramic making.
But, the receiver of this structure, multistage filter screen is staggered in casing, and filter screen has gap with cabinet wall, contains
Dust and gas body is escaped from gap, and efficiency of dust collection is low；, it is necessary to stop dusty gas continuation when sticking on filter screen dust or more glaze
Into casing, dust or glaze on filter screen are blown down using vibrator vibration and high-pressure nozzle, to be deposited on bottom half, and from going out
Material mouth is purged, it is impossible to realize continuous operation.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome industrial ceramics dust arrester dedusting of the prior art to imitate
Rate is low and the problem of can not realizing continuous operation.
Therefore, the present invention provides a kind of industrial ceramics dust arrester, including
Tank body, with inner chamber；
Filter mechanism, by the inner chamber be divided into above and below two chambers, epimere is first chamber, and hypomere is second chamber；Institute
State and exhaust outlet is set on first chamber wall, charging aperture and drain hole are provided with the second chamber wall, the charging aperture is located at
Above the drain hole；
Pneumatic spraying mechanism, with the Pneumatic assembly being arranged on the first chamber wall, and with the Pneumatic assembly
The spray assemblies of linkage, the Pneumatic assembly controls the break-make of the spray assemblies according to pressure in the tank body.
Preferably, the industrial ceramics dust arrester of this structure, the Pneumatic assembly includes being arranged on the first chamber wall
On pressure gauge, and the controller being connected with the pressure gauge；The spray assemblies include being opened in the first chamber wall
On water inlet, be connected with the water inlet, the shower in first cavity, and be arranged on the shower
It is upper, with the controller is connected cuts valve soon；The pressure gauge detects pressure in the tank body, pressure signal is transferred to described
Controller, the controller cuts the break-make that valve controls the shower soon according to pressure signal by described.
Preferably, the industrial ceramics dust arrester of this structure, the shower is set in winding shape；The spray pipe surface
Offer spray apertures.
Preferably, the industrial ceramics dust arrester of this structure, the filter mechanism is at least one layer of filter.
Preferably, the industrial ceramics dust arrester of this structure, the filter is made of rigid material.
Preferably, the industrial ceramics dust arrester of this structure, the filter mechanism also includes at least one layer of supporting plate.
Preferably, the industrial ceramics dust arrester of this structure, the supporting plate is integrally formed with the filter.
Preferably, the industrial ceramics dust arrester of this structure, the second chamber bottom is at least one back taper laying dust
Bucket, the drain hole is arranged on the laying dust bucket bottom.
Preferably, the industrial ceramics dust arrester of this structure, the exhaust outlet sets ventilating fan；Set in the laying dust bucket
Wiper.
Preferably, the industrial ceramics dust arrester of this structure, the tank body liner enamel chuck.
Technical solution of the present invention, has the following advantages that：
The industrial ceramics dust arrester that 1 present invention is provided, including tank body, filter mechanism and pneumatic spraying mechanism.Filtering
Mechanism is arranged in tank inner chamber, and tank inner chamber is separated into the first cavity and the second cavity；Pneumatic spray equipment includes pneumatic
Component and spray assemblies.
The industrial ceramics dust arrester of this structure, under exhaust outlet air draft effect, dusty gas enters second by charging aperture
Chamber, then turn into clean gas after the filtering of filter structure, to realize dedusting.Filter mechanism is tightly connected with inner tank wall face, no
There is gap, efficiency of dust collection is high.
After dust arrester long-play, the micropore that dust or glaze in dusty gas will be blocked in filter mechanism, and
Deposit to form more and more thick staubosphere or glaze layer in filter mechanism lower surface, the air permeance resistance increase of filter mechanism, first
Chamber inner pressure is less than by force the outer atmospheric pressure of tank body, and Pneumatic assembly is opened according to pressure in tank body, control spray assemblies, realizes spray
Component is sprayed to being blocked in filter mechanism micropore or being deposited on the dust or glaze of filter mechanism lower surface, by dust or
Glaze is rinsed to second chamber bottom, is released by drain hole.When dust or after rinsing well of glaze, the ventilative resistance of filter mechanism
Power reduces, and reduces in first chamber with the pressure difference outside tank body, and Pneumatic assembly control spray assemblies are closed, and stop spray.The knot
The industrial ceramics dust arrester of structure can be realized on continuous, automatic removing filter mechanism by Pneumatic assembly linkage spray assemblies
Dust or glaze, utilization rate of equipment and installations are high, and production capacity is big.
2. the industrial ceramics dust arrester that the present invention is provided, pressure gauge detects the pressure in the first cavity in real time, by depressor
Signal is transferred to controller, and this signal and preset value are compared by controller, and valve opening and closing degree is cut in regulation soon, realizes spray flux
Control；And can be according to the deposition degree of dust on filter mechanism or glaze, control spray assemblies open that there is provided suitable in real time
Spray flux, compared with the setting of timing spray in the prior art, the industrial ceramics dust arrester of the structure saves ejecting liquid, subtracts
Few dedusting cost, is especially suitable for contained dust or the different situation of glaze concentration in different periods dusty gas
3. the industrial ceramics dust arrester that the present invention is provided, shower is set in back-shaped, spray apertures are opened in shower
Surface, the shower of the structure can realize uniform spraying, farthest the dust or glaze in cleaning filter structure.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the diagrammatic cross-section for the industrial ceramics dust arrester that the embodiment of the present invention 1 is provided；
Fig. 2 is the filter mechanism structural representation in Fig. 1；
Fig. 3 is spray apertures schematic diagram in Fig. 1；
Description of reference numerals：
1- tank bodies；11- exhaust outlets；12- ventilating fans；13- charging apertures；14- laying dust buckets；15- wipers；16- drain holes；
17- first chambers；18- second chambers；；
2- filter mechanisms；21- filters；22- supporting plates；
The pneumatic spraying mechanisms of 3-；31- Pneumatic assemblies；311- pressure gauges；312- controllers；32- spray assemblies；321- is intake
Mouthful；322- showers；3221- spray apertures；323- cuts valve soon.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can just be combined with each other into conflict.
Embodiment 1
The present embodiment provides a kind of industrial ceramics dust arrester, as shown in figure 1, including tank body 1, filter mechanism 2, pneumatic spray
Drench mechanism 3.
Wherein, tank body 1 includes the first housing and the second housing；In second housing is removably surrounded with the first housing fastening
Chamber.First housing upper end offers setting ventilating fan 12 at exhaust outlet 11, exhaust outlet 11, for passing through filter for dusty gas
Structure 2 provides power.Second housing includes offering charging aperture 13 on vertical portion setting up and down and rake, vertical portion side wall,
Rake is back taper laying dust bucket 14, beneficial to dust or glaze under gravity automatic flowing to second chamber bottom.
Wiper 15 is provided with laying dust bucket 14, lower end offers drain hole 16.
Filter mechanism 2 is arranged in the inner chamber of tank body 1, is fixed between the first housing and the second shell nozzle, by tank body 1
Chamber be divided into above and below two chambers, epimere be first chamber 17, hypomere be second chamber 18.That is, the inner chamber of the first housing is made
For first chamber 17, the inner chamber of the second housing is used as second chamber 18.
As shown in Fig. 2 filter mechanism 2 includes filter 21 and supporting plate 22.Filter 21 is fixed on the first housing and
Between two shell nozzles, it is connected with the inner wall sealing of tank body 1；Filter 21 is ball curved surface, is convex to second chamber 18 and sets；Filter
21 are made of the hydrophobic corrosion resistance porous material of rigidity, preferably polyethylene.Supporting plate 22 is made of metal material, is embedded
In filter 21, it is coated with, is made that is, supporting plate 22 is integrally formed with filter 21 by filter 21 completely.Preferably, support
Plate 22 is stainless steel cloth.
As shown in figure 1, pneumatic spray equipment 3 includes Pneumatic assembly 31 and spray assemblies 32.
Pneumatic assembly 31 includes pressure gauge 311, controller 312.Pressure gauge 311 is arranged on the wall of first chamber 17, is used for
Ground pressure in first chamber 17 is detected, pressure gauge 311 is connected with controller 312.
Spray assemblies 32 include water inlet 321, shower 322 and cut valve 323 soon.Water inlet 321 is arranged on the first chamber
On the wall of room 17, shower 322 is connected with water inlet 321, and the top that valve 323 is arranged on the water inlet 321 of shower 322 is cut soon, with
Controller 312 is connected.
Shower 322 is located in first chamber 17, is winding shape coil pipe, by water inlet initiating terminal to end, its annular diameter
Successively decrease step by step.As shown in figure 3, the surface of shower 322 offers spray apertures 3221, it is preferable that at interval of same on shower 322
Equal length chooses a cross section and carries out perforate, and equidistantly 4 spray apertures are opened up on the wall of shower 322 of this cross section
3221, and be symmetrical arranged with vertical curve.
The industrial ceramics dust arrester operating process of said structure is：The air draft of ventilating fan 12 effect under, dusty gas by
Charging aperture 13 enters second chamber 18, and now, bulky grain such as glaze will be deposited in laying dust bucket 14 in dusty gas, Ran Houhan
Dust and gas body enters first chamber 17 through filter 21.Because filter 21 is connected with the inner wall sealing of tank body 1, in the absence of any
Dust or glaze in gap, dusty gas are intercepted by filter 21 to greatest extent, and dust or glaze constantly block filter 21
Micropore, and it is deposited on the lower surface of filter 21 so that the air permeance resistance of filter 21 constantly increases.Under continuous air draft effect,
Pressure in first chamber 17 is constantly reduced, now, and pressure gauge 311 transmits pressure signal to controller 312, controller 312
Control is cut valve 323 and gradually opened soon, and the liquid in shower 322 is sprayed to filter 21, by the dust in filter 21
Or glaze is rinsed to the second cavity 18, in the case where self gravitation and wiper 15 are acted on, the solid-liquid mixing containing dust or glaze
Thing is released by drain hole 16.
With the flushing of dust or glaze in filter 21, the air permeance resistance of filter 21 is gradually reduced, first chamber 17
Interior pressure gradually increases, and is gradually reduced in the first chamber 17 suffered by elastic membrane 312 with the pressure difference outside tank body 1, pressure
Pressure signal is transferred to controller 312 by table 311, and valve 323 is cut soon and is closed.
The industrial ceramics dust arrester of the structure can realize dust or glaze continuously, on auto-flushing filter 21,
Without the artificial operation of interval, utilization rate of equipment and installations is high, and production capacity is big.By the linkage spray assemblies 32 of Pneumatic assembly 31, according to mistake
The aperture size of valve 323 is cut in the deposition degree of dust or glaze on filter structure 2, in real time control soon, saves ejecting liquid, and reduction is removed
Dirt cost, is especially suitable for the situation of contained dust or glaze density unevenness in different periods dusty gas.
As first interchangeable embodiment, glass lining can also be not provided with tank body 1, tank body 1 is directly used
Corrosion resistant material is made, and can also realize using acid-base solution cleaning.
As second interchangeable embodiment, exhaust outlet 11 is not provided with ventilating fan 12, but by exhaust outlet 11 and its
Its equipment is connected, as long as power can be provided by filter mechanism 2 for dusty gas.
As the further deformation of second alternative embodiments, wiper can also be not provided with laying dust bucket 14
15, can also be under self gravitation effect, the mixture containing dust or glaze in laying dust bucket 14 is released automatically.
As the 3rd interchangeable embodiment, the bottom of second chamber 18 can also set two, three, four etc. it is many
Individual back taper laying dust bucket 14, as long as production needs can be met.
As the 4th interchangeable embodiment, Multi-layer supporting plate 22, supporting plate 22 can also be set in filter mechanism 2
It can also be stacked in the top of filter 21, as long as ensure that filter 21 acts on indeformable damage in high pressure.
As the further deformation of the 4th alternative embodiments, supporting plate 22 can also be not provided with filter mechanism 2,
As long as itself rigidly meeting for filter 21 acts on indeformable damage in high pressure.
As the 5th interchangeable embodiment, shower 322 can also be arranged to other shapes, such as cross network
Deng as long as uniform spraying can be met.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of industrial ceramics dust arrester, it is characterised in that：
Tank body (1), with inner chamber；
Filter mechanism (2), by the inner chamber be divided into above and below two chambers, epimere be first chamber (17), hypomere is second chamber
(18)；Set on first chamber (17) wall on exhaust outlet (11), second chamber (18) wall and be provided with charging aperture (13)
With drain hole (16), the charging aperture (13) is located above the drain hole (16)；
Pneumatic spraying mechanism (3), with the Pneumatic assembly (31) being arranged on the first chamber (17) wall, and with the gas
The spray assemblies (32) of dynamic component (31) linkage, the Pneumatic assembly (31) controls the spray according to the tank body (1) interior pressure
Drench the break-make of component (32).
2. industrial ceramics dust arrester according to claim 1, it is characterised in that：The Pneumatic assembly (31) includes setting
Pressure gauge (311) on the first chamber (17) wall, and the controller (312) being connected with the pressure gauge (311)；Institute
The water inlet (321) that spray assemblies (32) include being opened on the first chamber (17) wall is stated, with the water inlet (321) even
Connect, the shower (322) in first cavity (11), and be arranged on the shower (322), with the control
What device (312) was connected cuts valve (323) soon；The pressure gauge (311) detects the interior pressure of the tank body (1), and pressure signal is transmitted
The controller (312) is given, the controller (312) controls the spray according to pressure signal by the valve (323) of cutting soon
Manage the break-make of (322).
3. industrial ceramics dust arrester according to claim 1 or 2, it is characterised in that：The shower (322) is in winding
Shape is set；Shower (322) surface offers spray apertures (3221).
4. the industrial ceramics dust arrester according to claim any one of 1-3, it is characterised in that：The filter mechanism (2)
For at least one layer of filter (21).
5. the industrial ceramics dust arrester according to claim any one of 1-4, it is characterised in that：The filter (21) is adopted
It is made of rigid material.
6. the industrial ceramics dust arrester according to claim any one of 1-5, it is characterised in that：The filter mechanism (2)
Also include at least one layer of supporting plate (22).
7. the industrial ceramics dust arrester according to claim any one of 1-6, it is characterised in that：The supporting plate (22) with
The filter (21) is integrally formed.
8. the industrial ceramics dust arrester according to claim any one of 1-7, it is characterised in that：The second chamber (18)
Bottom is at least one back taper laying dust bucket (14), and the drain hole (16) is arranged on laying dust bucket (14) bottom.
9. the industrial ceramics dust arrester according to claim any one of 1-8, it is characterised in that：The exhaust outlet (11) sets
Put ventilating fan (12)；Wiper (15) is set in the laying dust bucket.
10. the industrial ceramics dust arrester according to claim any one of 1-9, it is characterised in that：Tank body (1) liner
Enamel chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497231.1A CN107051046B (en) | 2017-06-26 | 2017-06-26 | Industrial ceramic dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497231.1A CN107051046B (en) | 2017-06-26 | 2017-06-26 | Industrial ceramic dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107051046A true CN107051046A (en) | 2017-08-18 |
| CN107051046B CN107051046B (en) | 2020-03-20 |
Family
ID=59613732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710497231.1A Active CN107051046B (en) | 2017-06-26 | 2017-06-26 | Industrial ceramic dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107051046B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854325A (en) * | 2018-07-27 | 2018-11-23 | 王孜睿 | A kind of construction dust-extraction unit |
| RU221370U1 (en) * | 2023-08-11 | 2023-11-02 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | UNIT FOR REMOVAL OF FLASHES |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11244639A (en) * | 1998-02-27 | 1999-09-14 | Hideyuki Horisawa | Wet type dust collector |
| CN205796807U (en) * | 2016-05-17 | 2016-12-14 | 福建省泉州灵客企业管理有限公司 | A kind of ceramic making high effect dust cleaner |
| CN106318472A (en) * | 2016-11-01 | 2017-01-11 | 中国科学院过程工程研究所 | High temperature dust-containing coal gas dust removal device |
-
2017
- 2017-06-26 CN CN201710497231.1A patent/CN107051046B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11244639A (en) * | 1998-02-27 | 1999-09-14 | Hideyuki Horisawa | Wet type dust collector |
| CN205796807U (en) * | 2016-05-17 | 2016-12-14 | 福建省泉州灵客企业管理有限公司 | A kind of ceramic making high effect dust cleaner |
| CN106318472A (en) * | 2016-11-01 | 2017-01-11 | 中国科学院过程工程研究所 | High temperature dust-containing coal gas dust removal device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854325A (en) * | 2018-07-27 | 2018-11-23 | 王孜睿 | A kind of construction dust-extraction unit |
| CN108854325B (en) * | 2018-07-27 | 2020-12-25 | 广东合创工程总承包有限公司 | Building construction dust collector |
| RU221370U1 (en) * | 2023-08-11 | 2023-11-02 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | UNIT FOR REMOVAL OF FLASHES |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107051046B (en) | 2020-03-20 |
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