CN109453581A - A kind of dust filtering device - Google Patents
A kind of dust filtering device Download PDFInfo
- Publication number
- CN109453581A CN109453581A CN201811470967.0A CN201811470967A CN109453581A CN 109453581 A CN109453581 A CN 109453581A CN 201811470967 A CN201811470967 A CN 201811470967A CN 109453581 A CN109453581 A CN 109453581A
- Authority
- CN
- China
- Prior art keywords
- chamber
- filter
- dust
- filter chamber
- filtering device
- 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.)
- Pending
Links
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
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/26—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies rotatable
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4254—Allowing or improving visual supervision, e.g. lamps, transparent parts, windows
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of dust filtering devices, including air inlet, gas outlet, the room that gathers materials, filter chamber and blower, the air inlet, filter chamber, blower and gas outlet are sequentially communicated, dust filtering device is provided in the filter chamber, the indoor gas of filtering is blowed to the gas outlet by the blower, and the lower section of the filter chamber is arranged in the room of gathering materials, and is connected to the filter chamber, it is provided with venting of dust explosion mouth on the side wall of the filter chamber, venting of dust explosion plate is installed at the venting of dust explosion mouth;The dust filtering device has the advantages that structurally reasonable, safe and reliable, operating noise is small.
Description
Technical field
The invention belongs to spraying equipment technical fields, and in particular to for recycling the one of powdery paints in powder spraying system
Kind dust filtering device.
Background technique
Powder spray is exactly the principle using high-pressure electrostatic corona field, puts in gun head metal water conservancy diversion and connects high pressure
Cathode is sprayed-on workpiece grounding and forms anode, makes to form a stronger static electric field between spray gun and workpiece.When as delivery
The compressed air of gas, when powdery paints is sent to the diversion rod of spray gun through tube cell from powder barrel, since diversion rod connects high pressure
The corona discharge that cathode generates, produces intensive negative electrical charge in its vicinity, makes negative electrical charge on powdery paints band, and enter electricity
The very high electrostatic field of field intensity, under the double action of electrostatic force and delivery gas, powdery paints equably flies to ground connection workpiece
Surface simultaneously forms the uniform powdery coating of thickness, and last powdery coating solidifies by high-temperature baking levelling, becomes the different (powder of effect
The variety classes effect of last coating) final coating.The spraying effect of powder spray is in mechanical strength, adhesive force, corrosion-resistant, resistance to
Aging etc. is better than lacquer spraying technique, therefore powder spray is widely used to the production and processings such as vehicle spray painting, furniture spray paint neck
In domain.It is drifted in air it is known that having amount of powder coating in the spraying process of coating, it is therefore desirable to these
Exhaust gas containing coating dust is effectively handled, so that coating therein can be efficiently recovered recycling, is prevented simultaneously
Only coating dust pollutes air environment.It is therefore desirable to be carried out by recovering device for coating to the coating dust in exhaust gas
Recycling, but a small amount of powdery paints can still be retained by passing through in the processed exhaust gas of recovering device for coating, if directly by this
A little exhaust gas are discharged into atmospheric environment, it will certain pollution are generated to atmospheric environment, it is therefore desirable to pass through dust filtering device pair
The exhaust gas being discharged into atmospheric environment makees filtration treatment, to be additionally separated the remaining coating dust in exhaust gas, makes exhaust gas
The requirement of discharge can be reached.But there are the following problems when in use for existing dust filtering device, especially dust-filtering fills
The danger that can make hypertonia in dust filtering device in blocking and may explode is set, once dust filtering device
Occur to damage dust filtering device main body when explosion accident, while dust filtering device is caused by the explosion time
High-speed flow and the fragment being mixed in high-speed flow are also possible to that the person for being located at neighbouring staff can be damaged;
Secondly, existing dust filtering device is substantially split type structure, i.e. negative pressure part and filtration fraction is separated from each other,
Then it is connected to each other by pipeline, however its connecting line can be because of the height of air-flow when in use for split type dust filtering device
Speed impact and running at high speed for blower and to there is biggish operating noise.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of dust-filterings structurally reasonable, safe and reliable, operating noise is small
Device.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of dust filtering device, including air inlet, gas outlet, the room that gathers materials, filter chamber and blower, the air inlet, mistake
Filter chamber, blower and gas outlet are sequentially communicated, and are provided with dust filtering device in the filter chamber, and the blower is by the filter chamber
Interior gas blows to the gas outlet, and the lower section of the filter chamber is arranged in the room of gathering materials, and is connected to the filter chamber, institute
It states and is provided with venting of dust explosion mouth on the side wall of filter chamber, venting of dust explosion plate is installed at the venting of dust explosion mouth.
Preferably, the dust filtering device further includes guide pipe, the side wall of the guide pipe and the filter chamber is solid
Fixed connection, and being located at outside the filter chamber, on the venting of dust explosion plate, the other end extends outwardly shape one end the cover of the guide pipe
At free end, the axial direction of the free end of the guide pipe is axially formed with the venting of dust explosion mouth greater than 30 degree and less than 120 degree
Angle.
Preferably, the guide pipe is the bend pipe being bent upwards;The cross section of the free end of the guide pipe and/or
Product is greater than the area of the venting of dust explosion plate.
Preferably, the dust filtering device includes top plate, the top plate is fixed in the filter chamber, the air inlet
Mouth offers multiple filter core holes, all installs in the filter core hole between the top plate and the room that gathers materials on the top plate
There is a filter core, the filter core is arranged in hollow tubular, and filter core one end is fixedly connected with top plate, and the other end is to the filter chamber
Bottom extends.
Preferably, the filter core includes filter core air inlet and filter core gas outlet, the filter core air inlet is located at the top
Plate towards the filter chamber bottom side, the filter core gas outlet is located at bottom of the top plate far from the filter chamber
Side.
Preferably, being additionally provided with rotatable rotary wings in the filter core, multiple spray orifices are provided on the rotary wings,
The dust filtering device further includes cleaning plant, and the cleaning plant includes gas tank and solenoid valve, and the gas tank is arranged in institute
It states outside filter chamber, and is connected to by pipeline with the spray orifice of the rotary wings, the solenoid valve is used to control the on-off of the pipeline.
Preferably, the dust filtering device includes fan house, the blower is arranged in the fan house, it is described go out
Port is arranged on the side wall of the fan house, and the fan house and the filter chamber are isolated.
Preferably, the filter chamber and blower interventricular septum are arranged, interval forms maintenance between the filter chamber and fan house
Room, the maintenance room are connected with filter chamber and fan house respectively, are additionally provided with access hole on the side wall of the maintenance room, described
Sealing is fixed with sealing plate on access hole.
Preferably, be additionally provided with silencing means in the fan house, the silencing means be located at the blower with it is described
Between gas outlet.
Preferably, the room that the gathers materials setting funnel-shaped, the bottom of the room that gathers materials is provided with openable or closing
Discharge port is additionally provided with transparent observation window on the side wall of the room that gathers materials.
Technical effect caused by the present invention essentially consists in: due to having opened up venting of dust explosion mouth on the side wall of filter chamber, and
It is provided with the venting of dust explosion plate with its phase and cooperation on venting of dust explosion mouth, causes its internal pressure to reach when blocking occurs for dust filtering device
When preset value dangerous values, being fixed on venting of dust explosion plate on venting of dust explosion mouth can be broken through, so that the pressure in dust filtering device is by letting out
Seam broken is released, and so as to avoid the generation of explosion, and avoids explosion time to caused by dust filtering device main body
It destroys, this improves dust filtering devices in the security reliability used;Secondly as filter chamber and negative pressure chamber are integrated
It in a shell and is interconnected, therefore simplifies the overall structure of dust filtering device, that is, avoid exclusive use connection
Pipeline, so that the gas shock noise of dust filtering device at work is effectively reduced.
Detailed description of the invention
It is more particularly described by the preferred embodiment of the present invention shown in the drawings, the above and other purpose of the present invention, feature
It will be become more fully apparent with advantage.Identical appended drawing reference indicates identical part in all the attached drawings, and not deliberately by real
Size equal proportion scaling in border draws attached drawing, it is preferred that emphasis is shows this purport.
Fig. 1 is a kind of overall structure diagram of dust filtering device in the present invention;
Fig. 2 is a kind of partial structural diagram of explosion venting device in dust filtering device in the present invention;
Fig. 3 is a kind of backsight structural representation of dust filtering device in the present invention;
Fig. 4 is a kind of schematic cross-sectional view of dust filtering device in the present invention.
Specific embodiment
Technical solution of the present invention is described in further detail in the following with reference to the drawings and specific embodiments, so that this field
Technical staff can better understand the present invention and can be practiced, in the present embodiment, it is to be understood that term is " vertical
To ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It should not be understood as illustrated embodiment limitation of the present invention;In addition, in this embodiment if not otherwise specified between component
Connection or fixed form, connection or fixed form can be to be fixed or are welded and fixed by bolt commonly used in the prior art
Or therefore the modes such as pin shaft fixation are no longer described in detail in the present embodiment.
As shown in Figures 1 to 4, as shown in Figures 1 to 4, a kind of dust filtering device, including air inlet are present embodiments provided
Mouth 1, gas outlet 2, the room 3 that gathers materials, filter chamber 4 and blower 5, air inlet 1, filter chamber 4, blower 5 and gas outlet 2 are sequentially communicated, mistake
Dust filtering device is provided in filter chamber 4, blower 5 blows to gas outlet 2 for the gas come is pumped through in filter chamber 4, the setting of room 3 of gathering materials
It is connected in the lower section of filter chamber 4, and with filter chamber 4, venting of dust explosion mouth 6 is provided on the side wall of filter chamber 4, passes through spiral shell on venting of dust explosion mouth 6
Bolt seals intrinsic venting of dust explosion plate 61.When dust filtering device occurs blocking and its internal pressure is caused to reach preset dangerous values,
The venting of dust explosion plate 61 being fixed on venting of dust explosion mouth 6 can be broken through by pressure, so that pressure excessively high in dust filtering device passes through venting of dust explosion
Mouth 6 is released, and so as to avoid the generation of explosion, and avoids exploding to destruction caused by dust filtering device main body.
Blower 5 is that centrifugal fan sucks the exhaust gas to be treated containing coating dust for generating negative pressure out of air inlet 1,
And it is discharged eventually by gas outlet 2.
As shown in Figs. 1-2, the dust filtering device in the present embodiment further includes guide pipe 7, one end of guide pipe 7 and filtering
The side wall of room 4 is bolted, and guide pipe 7 is located at outside filter chamber 4, and one end the cover of guide pipe 7 is on venting of dust explosion plate 61, i.e.,
The cross-sectional area of the free end of guide pipe 7 is greater than the area of venting of dust explosion plate 61, and the other end extends outward to form free end, guide pipe 7
Free end axial direction and venting of dust explosion mouth 6 the angle being axially formed greater than 30 degree and less than 120 degree.Guide pipe in the present embodiment
7 be the bend pipe being bent upwards, and the angle for being axially formed one 45 degree of the axial direction of the free end of guide pipe 7 and venting of dust explosion mouth 6.When
When the interior pressure of filter breaks through venting of dust explosion plate 61 afterwards, the air-flow that the high speed in dust filtering device is gone out is drawn by the pressure of guide pipe 7
It hoists, that is, shocking damage may be caused to human body by avoiding high-speed flow, so that further improving dust filtering device makes
Security reliability.
As shown in figure 4, dust filtering device further includes top plate 8, top plate 8 is fixed by welding on the inner wall of filter chamber 4,
Wherein air inlet 1 is located at top plate 8 between the room 3 that gathers materials, and multiple filter core holes 81 are offered on top plate 8, are all installed in filter core hole 81
There is a filter core 82, filter core 82 is arranged in hollow tubular, and 82 one end of filter core is bolted with top plate 8, and the other end is to filtering
The bottom of room 4 extends.Filter core 82 includes filter core air inlet and filter core gas outlet, and filter core air inlet is located at top plate 8 towards filter chamber 4
Bottom side, filter core gas outlet is located at the side of bottom of the top plate 8 far from filter chamber 4.When exhaust gas to be processed enters
When in filter chamber 4, exhaust gas passes through 82 side wall of filter core as filter core air inlet under the influence of air pressure at this time, then by top plate 8
On as being discharged in the filter core hole 81 of filter core gas outlet.Filter core 82 is mainly tangled or is woven through hot melt by fiber, and fiber exists
Space is randomly formed three-dimensional micropore structure, when the air containing powdery paints pass through filter core 82 when, coating dust therein due to
Its material diameter is trapped within the outer surface of filter core 82 relatively larger than the micropore in filter core 82, and air can then pass through, that is, complete
Coating dust is from the separation in air.
As shown in Figure 3 to Figure 4, it is additionally provided with rotatable rotary wings 83 in filter core 82, is provided on rotary wings 83 multiple
Spray orifice, rotary wings 83 further include blowback component, seal assembly and central axis.Blowback component and seal assembly are both connected to central axis
On, and blowback component can be rotated with respect to central axis.Inlet channel is provided on central axis, inlet channel is connected to gas tank 9, in turn
Pressure-air can be passed through into inlet channel 31.The pipeline being connected always with inlet channel is provided on blowback component, it is more
A spray orifice is opened on blowback component, and the reaction force that the gas come out from spray orifice generates rotates blowback component, while from spray
The high pressure gas sprayed in hole is blown on the inner wall of filter core 82, and 82 chamber pressure of filter core is uniformly anxious under the active force of compressed air
Speed is promoted, and makes 82 relative expansion of filter core, while compressed air flows out from inside to outside from filter core 82, and then shake off or reversely blow down attachment
In the coating dust on filter core.Dust filtering device further includes cleaning plant, and cleaning plant includes gas tank 9 and solenoid valve 10, gas
Tank 9 is bolted on outside filter chamber 4, and is connected to by pipeline with the spray orifice of rotary wings 83, and solenoid valve 10 is connected with gas tank 9
Lead to and be used for the on-off of control piper.
As shown in Figs 1-4, dust filtering device includes fan house 51, and blower 5 is bolted in fan house 51, out
Port 2 is provided on the side wall of blower Room 5, and fan house 51 and filter chamber 4 are isolated.Blower 5 is centrifugal fan, when blower 51
The centrifugal force that fan leaf high speed rotation generates when work throws away air out of blower 5, generates the air inlet 52 of blower 5 negative
Pressure, the i.e. air inlet 52 of fan house 51 suck processed air, and are discharged by gas outlet 2.Filter chamber 4 and blower 5
Interventricular septum setting, between filter chamber 4 and fan house 51 interval formed maintenance room 11, maintenance room 11 respectively with filter chamber 4 and blower 5
Room is connected, and overhauls and is additionally provided with access hole on the side wall of room 11, sealing plate 12 is fixed with by bolt seal on access hole, when need
Dismantling sealing plate 12 when overhauling to dust filtering device can be entered in dust filtering device and be carried out by access hole
Corresponding repair and maintenance work.
As shown in figure 4, be additionally provided with silencing means 13 in fan house 51, silencing means 13 be located at blower 5 and gas outlet 2 it
Between, and silencing means 13 is bolted with fan house 51.Silencing means 13 includes the noise-reducing structure of the V-shaped setting of multi-disc
Piece, when the air extracted out by blower 5 is discharged from silencing means 13, air can be sent out between two adjacent noise-reducing structure pieces
It is raw to turn to and reduce flow velocity, disorder air-stable is got off, and then reduce the wind generated when air discharge and make an uproar.
As shown in Figs 1-4, in this embodiment, gather materials the setting funnel-shaped of room 3, the bottom for the room 3 that gathers materials is provided with and can beat
The discharge port 14 closed is opened or closed, is additionally provided with transparent observation window 15 on the side wall for the room 3 that gathers materials.The funnelform room 3 that gathers materials helps
Summarized and recycled under gravity in falling within the coating to gather materials in room 3.
As shown in figure 3, in this embodiment, it is additionally provided with transparent observation window 15 at discharge port 14 on the room 3 that gathers materials,
Observation window 15 and the room of gathering materials sealing are fixed, and observation window 15 helps to observe the collection situation for 3 inside courtyard of room that gathers materials.
Technical effect caused by the present invention essentially consists in: due to having opened up venting of dust explosion mouth on the side wall of filter chamber, and
It is provided with the venting of dust explosion plate with its phase and cooperation on venting of dust explosion mouth, causes its internal pressure to reach when blocking occurs for dust filtering device
When preset value dangerous values, being fixed on venting of dust explosion plate on venting of dust explosion mouth can be broken through, so that the pressure in dust filtering device is by letting out
Seam broken is released, and so as to avoid the generation of explosion, and avoids explosion time to caused by dust filtering device main body
It destroys, this improves dust filtering devices in the security reliability used;Secondly as filter chamber and negative pressure chamber are integrated
It in a shell and is interconnected, therefore simplifies the overall structure of dust filtering device, that is, avoid exclusive use connection
Pipeline, so that the gas shock noise of dust filtering device at work is effectively reduced.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811470967.0A CN109453581A (en) | 2018-12-04 | 2018-12-04 | A kind of dust filtering device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811470967.0A CN109453581A (en) | 2018-12-04 | 2018-12-04 | A kind of dust filtering device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109453581A true CN109453581A (en) | 2019-03-12 |
Family
ID=65612402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811470967.0A Pending CN109453581A (en) | 2018-12-04 | 2018-12-04 | A kind of dust filtering device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109453581A (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101269290A (en) * | 2008-04-28 | 2008-09-24 | 江苏南方机械有限公司 | Explosion-proof air box impulse bag-type dust remover |
CN104190177A (en) * | 2014-09-24 | 2014-12-10 | 陈美青 | Explosion-proof dust remover |
CN205495170U (en) * | 2016-04-14 | 2016-08-24 | 青岛联合中景涂装设备有限公司 | Many air inlets industrial dust removal ware |
CN205730657U (en) * | 2016-05-13 | 2016-11-30 | 昆山工统环保科技有限公司 | Explosion-proof bag-type dust removing system |
CN206463650U (en) * | 2017-02-04 | 2017-09-05 | 北京巴尔福过滤技术有限公司 | Sinter-plate precipitator with explosion venting device |
CN209501135U (en) * | 2018-12-04 | 2019-10-18 | 广东泽亨智能科技有限公司 | A kind of dust filtering device |
CN209501125U (en) * | 2018-12-04 | 2019-10-18 | 广东泽亨智能科技有限公司 | A kind of low noise dust filtering device |
CN210159363U (en) * | 2018-12-04 | 2020-03-20 | 广东泽亨智能科技有限公司 | Dust filtering device |
-
2018
- 2018-12-04 CN CN201811470967.0A patent/CN109453581A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101269290A (en) * | 2008-04-28 | 2008-09-24 | 江苏南方机械有限公司 | Explosion-proof air box impulse bag-type dust remover |
CN104190177A (en) * | 2014-09-24 | 2014-12-10 | 陈美青 | Explosion-proof dust remover |
CN205495170U (en) * | 2016-04-14 | 2016-08-24 | 青岛联合中景涂装设备有限公司 | Many air inlets industrial dust removal ware |
CN205730657U (en) * | 2016-05-13 | 2016-11-30 | 昆山工统环保科技有限公司 | Explosion-proof bag-type dust removing system |
CN206463650U (en) * | 2017-02-04 | 2017-09-05 | 北京巴尔福过滤技术有限公司 | Sinter-plate precipitator with explosion venting device |
CN209501135U (en) * | 2018-12-04 | 2019-10-18 | 广东泽亨智能科技有限公司 | A kind of dust filtering device |
CN209501125U (en) * | 2018-12-04 | 2019-10-18 | 广东泽亨智能科技有限公司 | A kind of low noise dust filtering device |
CN210159363U (en) * | 2018-12-04 | 2020-03-20 | 广东泽亨智能科技有限公司 | Dust filtering device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN201818320U (en) | Horizontal turbulence ball packing dust collector for mine | |
CN207856556U (en) | A kind of painting workshop emission-control equipment | |
CN211069511U (en) | Leading filtering formula wet dedusting fan | |
TWI665005B (en) | Dedusting and demisting device in wet desulfurization and electromechanical coupled wet dedusting demister | |
CN209501135U (en) | A kind of dust filtering device | |
CN107875782A (en) | Improved furniture spray painting purifier | |
CN107583795B (en) | A kind of powdery paints recovery system | |
CN109453581A (en) | A kind of dust filtering device | |
CN209501125U (en) | A kind of low noise dust filtering device | |
CN208894368U (en) | A kind of pesticide producing wettable powder air-flow crushing collection device | |
CN106958454A (en) | Novel wet-type coal mine dust collector | |
CN107159459B (en) | A comprehensive dust suppression system for construction sites based on "charged water mist" | |
CN210159363U (en) | Dust filtering device | |
CN109126330A (en) | A kind of spray column with self-cleaning function | |
CN220656891U (en) | Dust removing device | |
CN208912403U (en) | A kind of water whirling paint-spraying air exhausting device | |
CN208694566U (en) | A kind of gold smelting smoke integrated processing system | |
CN207268074U (en) | The totally-enclosed segmentation device for reducing dust of exterior wall scaffold and system | |
CN108816533A (en) | A kind of the chemical workshop air cleaner and its application method of environmental protection | |
CN210388862U (en) | Sand blasting machine for corrosion prevention of hardware parts | |
CN207237686U (en) | Fire control smoke exhausting processing system | |
CN103410554A (en) | Reinforced dedusting device for coal min safety | |
CN211097159U (en) | Conveying pipeline for spinning | |
CN107952746A (en) | A kind of high-efficiency cleaning device | |
CN211025600U (en) | Dust suppression system of electric dust removal ash bucket |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information |
Address after: 511453 No. 84 Dongyong Section of Nan Highway, Dongyong Town, Nansha District, Guangzhou City, Guangdong Province (self-compiled 2 buildings) Applicant after: Guangdong Zeheng Intelligent Technology Co.,Ltd. Address before: 511453 No. 84 Dongyong Section of Nan Highway, Dongyong Town, Nansha District, Guangzhou City, Guangdong Province (self-compiled 2 buildings) Applicant before: GUANGZHOU YIFAN INTELLIGENT AUTOMATION EQUIPMENT Co.,Ltd. |
|
CB02 | Change of applicant information | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190312 |
|
RJ01 | Rejection of invention patent application after publication |