CN109469504A - A kind of coal mine underground dust removal device - Google Patents
A kind of coal mine underground dust removal device Download PDFInfo
- Publication number
- CN109469504A CN109469504A CN201811446092.0A CN201811446092A CN109469504A CN 109469504 A CN109469504 A CN 109469504A CN 201811446092 A CN201811446092 A CN 201811446092A CN 109469504 A CN109469504 A CN 109469504A
- Authority
- CN
- China
- Prior art keywords
- dust
- baffle
- coal mine
- removal device
- dirt pocket
- 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.)
- Withdrawn
Links
- 239000000428 dust Substances 0.000 title claims abstract description 122
- 239000003245 coal Substances 0.000 title claims abstract description 24
- 238000003860 storage Methods 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 15
- 239000004744 fabric Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 229910000639 Spring steel Inorganic materials 0.000 claims 1
- 239000002775 capsule Substances 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention belongs to dust-extraction unit technical field, specifically a kind of coal mine underground dust removal device, including cabinet and bracket, cabinet left side are provided with air inlet, have negative-pressure air fan on the right side of air inlet, are equipped with the first dirt pocket on the outside of negative-pressure air fan；First baffle is installed inside the first dirt pocket, is equipped with second baffle on the right side of first baffle；It is connected with junction chamber above second baffle, and the first dust leg is installed below second baffle；Flow deflector is provided on the right side of junction chamber；Flow deflector right is equipped with the second dirt pocket；Second dirt pocket is dust storage chamber, and dust storage chamber lower end is equipped with the second dust leg, and cover board is bolted on the right side of dust storage chamber, and cover board is equipped with wind pipe；Branch is erected at below cabinet；Pedestal lower end is equipped with universal wheel, and there are bundle the thin end of the scroll in the two sides of universal wheel；The present invention, which is fixed on set-point by bundle the thin end of the scroll, prevents the shake of dust-extraction unit, guarantees dust removing effects.
Description
Technical field
The invention belongs to dust-extraction unit technical field, specifically a kind of coal mine underground dust removal device.
Background technique
With the extensive development of the industry productions such as mine, metallurgy, glass manufacture, ceramics, refractory material, building materials, dust
Harm be gradually recognized, bring insecurity factor to production, such as mechanical abrasion；The dust such as coal, flour easily cause
Burning, explosion etc., cause massive losses economically；Quartz and the dust containing free silicon dioxide, make long campaigns dust
Pneumoconiosis may occur for the worker of operation, interefere seriously with health or even disability or premature death.
Patent document 1: a kind of coal mine underground dust removal device, application number: 2017215127659
In above patent document 1, a kind of coal mine underground dust removal device is provided, is multistage inside the coal mine dust removing device
Dedusting, can be effectively by dust separate collection not of uniform size, and to reduce the probability of obstruction, and the device is easy to operate,
High dust collection efficiency.The first impact walls and the second impact walls of the device can prevent big ash with the biggish dust granule of obstruction ratio
Dirt blocks the device, and flow deflector plays the role of guiding air-flow, makes the indoor air-flow spiral shape of the second dedusting, so just
Spiral helicine dust filtering piece can be driven to be rotated, and conical filter net can prevent dust to be adsorbed on above, dust can be along
Filtering net surface enters in dust storage chamber, facilitates the collection of dust.However the dedusting of above equipment in the actual use process
Effect is not fine.
Summary of the invention
In order to make up for the deficiencies of the prior art, a kind of coal mine underground dust removal device proposed by the present invention, can make up existing
The bad technical problem of dust removing effects in technology.
The technical solution adopted by the present invention to solve the technical problems is: a kind of coal mine underground dust removal of the present invention
Device, including cabinet and bracket, the cabinet left side is provided with air inlet, and is equipped with negative-pressure air fan on the right side of air inlet, and
The first dirt pocket is provided on the outside of negative-pressure air fan；First baffle is installed, and on the right side of first baffle inside first dirt pocket
It is provided with second baffle；The first baffle and second baffle are made of two blocks of steel plates, and the steel plate of front end is connected by spring
On the steel plate of rear end, the Interal fixation of rear end is on the first dirt pocket side wall；The second baffle is fixedly arranged above junction chamber,
And the first dust leg is installed below second baffle；Flow deflector is provided on the right side of the junction chamber；The flow deflector right installation
There is the second dirt pocket, and is provided with flow deflector fixing piece on the inside of flow deflector；Second dirt pocket is internally provided with dust filtering piece, filter
Dirt piece is ellipsoidal structure and is in tilted layout in the second dirt pocket that two pieces of dust filtering pieces form one group of V-structure, along the second dedusting
Three groups of V-structures are at least arranged in room length direction；Dust storage chamber is installed, and dust storage chamber lower end is equipped with the on the right side of the strainer
Two dust legs, cover board is bolted on the right side of dust storage chamber, and cover board is equipped with wind pipe；The front end of the wind pipe is equipped with filtering
Net, wind pipe is interior to be equipped with spiral shape guide plate, and wind pipe side wall is equipped with dedusting hole, and guide plate guides the rotation of dust spiral shape
Turn, and be discharged under the action of the centrifugal force by dedusting hole, dust drops down onto the second dust leg under the effect of gravity；The bracket setting exists
Below cabinet；The pedestal lower end is hinged with universal wheel, while the two sides of universal wheel are also hinged with and are fixed on for that will state bracket
The bundle the thin end of the scroll of place to use；First dust leg lower end is equipped with the first dust bag；It is provided with below second dust leg
Second dust bag.
Preferably, the first baffle and second baffle are tilted to the left 45 ° and are arranged；When work, the first gear that is obliquely installed
Plate and second baffle can reduce the dust impact force being subject to, and extend the service life of first baffle and second baffle.
Preferably, first dust bag and the second dust bag are connected to the first dust leg and second by buckle and collect
Dirt pipe lower end；When work, lower end is buckled by pinching, unclamps upper end, convenient for clearing up the dust of collection.
Preferably, the surface for pricking the thin end of the scroll is equipped with several barb structures；When work, improve bundle the thin end of the scroll grabs ground
Power further mitigates vibration, dust-extraction unit is avoided to damage.
It preferably, is shiny surface on the front end face of the first baffle and second baffle；When work, first is further decreased
The impact force that baffle and second baffle are subject to extends the service life of first baffle and second baffle.
Preferably, the first baffle is identical with the plate size of the front and back ends of second baffle, and four of two blocks of steel plates
Side is connected by elastical cloth；It avoids dust from being accumulated in two blocks of steel plates, influences damping effect.
Preferably, air bag is equipped in the universal wheel；When work, makes universal wheel with being suitable for landform in complicated mine, subtract
The vibration that dust-extraction unit is subject in few moving process, prolongs the service life.
Preferably, the outside of the cabinet is equipped with two handles；It, can be with when landform inconvenience pulls in mine when work
Two people lift dust-extraction unit advance together, convenient for the movement of device, mitigate the amount of labour of user.
Beneficial effects of the present invention are as follows: the present invention is realized by using spiral shape guide plate is arranged at wind pipe
The centrifugal filtration of dust realizes secondary filtration by the multiple groups v-shaped structure of setting, passes through the first baffle and second baffle of setting
Realize last dedusting, compared to the prior art, dust removing effects are more preferably by the present invention.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is main view of the invention；
Fig. 2 is top view of the invention；
Fig. 3 is partial enlarged view at A in Fig. 1；
Fig. 4 is partial enlarged view at B in Fig. 1；
Fig. 5 is the sectional view of first baffle and second baffle；
Fig. 6 is the sectional view of universal wheel；
In figure: cabinet 1, bracket 2, air inlet 3, the first dirt pocket 4, first baffle 5, second baffle 6, junction chamber 7, first
Dust leg 8, dust storage chamber 10, the second dust leg 11, cover board 12, wind pipe 13, pricks the thin end of the scroll 14, the first dust at second dirt pocket 9
The 15, second dust bag 16 of bag, buckle 17, air bag 18, handle 19.
Specific embodiment
It is carried out as described below using a kind of coal mine of Fig. 1-Fig. 6 to an embodiment of the present invention with underground dust removal device.
As shown in Figure 1, Figure 2 and shown in Fig. 5, a kind of coal mine underground dust removal device of the present invention, including cabinet 1 and bracket
2, air inlet 3 is provided on the left of the cabinet 1, and negative-pressure air fan is installed on the right side of air inlet 3, and setting on the outside of negative-pressure air fan
There is the first dirt pocket 4；First baffle 5 is installed inside first dirt pocket 4, and is provided with second gear on the right side of first baffle 5
Plate 6；The first baffle 5 and second baffle 6 are made of two blocks of steel plates, and the steel plate of front end is connected to the steel of rear end by spring
On plate, the Interal fixation of rear end is on 4 side wall of the first dirt pocket；The second baffle 6 is fixedly arranged above junction chamber 7, and second
First dust leg 8 is installed below baffle 6；Flow deflector is provided on the right side of the junction chamber 7；The flow deflector right is equipped with
Two dirt pockets 9, and flow deflector fixing piece is provided on the inside of flow deflector；Second dirt pocket 9 is internally provided with dust filtering piece, dust filtering
Piece is ellipsoidal structure and is in tilted layout in the second dirt pocket 9 that two pieces of dust filtering pieces form one group of V-structure, along the second dedusting
Three groups of V-structures are at least arranged in 9 length direction of room；Dust storage chamber 10 is installed, and 10 lower end of dust storage chamber is pacified on the right side of the strainer
Equipped with the second dust leg 11, the right side of dust storage chamber 10 is bolted with cover board 12, and cover board 12 is equipped with wind pipe 13；The discharge pipe
The front end in road 13 is equipped with filter screen, spiral shape guide plate is equipped in wind pipe 13, and 13 side wall of wind pipe is equipped with dedusting hole,
Guide plate guides dust spiral rotating, and is discharged under the action of the centrifugal force by dedusting hole, and dust drops down onto the under the effect of gravity
Two dust legs 11；The bracket 2 is arranged below cabinet 1；2 lower end of bracket is hinged with universal wheel, while the two of universal wheel
Side is also hinged with the bundle the thin end of the scroll 14 for being fixed on place to use for that will state bracket 2；First dust leg, 8 lower end is equipped with first
Dust bag 15；The second dust bag 16 is provided with below second dust leg 11.
When work, the coal mine dust removing device is shifted onto place to use by universal wheel, easily it is laborsaving and just with movement, then
The thin end of the scroll 14 is pricked by rotation, the thin end of the scroll 14 will be pricked and penetrated in the soil of placement location, the shake of dust-extraction unit is fixed, influences to remove
Dirt effect, coal mine dust removing device inside are multistage dedusting, can be effectively by dust separate collection not of uniform size, to subtract
The probability blocked less, and the device is easy to operate, high dust collection efficiency；Negative-pressure air fan draws air into the first dirt pocket, negative pressure
Blower selects T35-11 model；It, can be by the way that cover board 12 be screwed out dust storage chamber 10, thus in dust storage chamber 10 after long-time use
Dust filtering piece, strainer and filter screen are cleared up or are replaced, and ensure that dust removing effects.
It is arranged as shown in Figure 1, the first baffle 5 and second baffle 6 are tilted to the left 45 °；When work, be obliquely installed
One baffle 5 and second baffle 6 can reduce the dust impact force being subject to, and reduce noise.
As shown in Figure 1 and Figure 4, first dust bag 15 and the second dust bag 16 are connected to first by buckle 17
11 lower end of dust leg 8 and the second dust leg；When work, 17 lower ends are buckled by pinching, unclamp upper end, convenient for the ash to collection
Dirt is cleared up.
As shown in figure 3, the surface for pricking the thin end of the scroll 14 is equipped with several barb structures；When work, improves and prick the thin end of the scroll 14
Road holding, further mitigate vibration, avoid dust-extraction unit from damaging.
As shown in Figure 1, being shiny surface on the front end face of the first baffle 5 and second baffle 6；When work, further drop
The impact force that low first baffle 5 and second baffle 6 are subject to extends the service life of first baffle 5 and second baffle 6.
As shown in figure 5, the first baffle 5 is identical with the plate size of the front and back ends of second baffle 6, and two blocks of steel plates
Four sides connected by elastical cloth；It avoids dust from being accumulated in two blocks of steel plates, influences damping effect.
As shown in fig. 6, being equipped with air bag 18 in the universal wheel；When work, make universal wheel with suitable in complicated mine
Shape reduces the vibration that dust-extraction unit is subject in moving process, prolongs the service life.
As shown in Fig. 2, the outside of the cabinet 1 is equipped with two handles 19；When work, when landform inconvenience pulls in mine
When, can two people lift together dust-extraction unit advance, convenient for the movement of device, mitigate the amount of labour of user.
Specific workflow is as follows:
When work, the coal mine dust removing device is shifted onto place to use by universal wheel, easily it is laborsaving and just with movement, then
The thin end of the scroll 14 is pricked by rotation, the thin end of the scroll 14 will be pricked and penetrated in the soil of placement location, the shake of dust-extraction unit is fixed, influences to remove
Dirt effect, coal mine dust removing device inside are multistage dedusting, can be effectively by dust separate collection not of uniform size, to subtract
The probability blocked less, and the device is easy to operate, high dust collection efficiency；Negative-pressure air fan draws air into the first dirt pocket, negative pressure
Blower selects T35-11 model, the first baffle 5 and second baffle 6 of the device can with the biggish dust granule of obstruction ratio, in order to
Guarantee that first baffle 5 and 6 long-time of second baffle use, continuous bulky grain dust shock causes to damage, by first baffle 5 and the
Two baffles 6 are made into the assembly of two blocks of steel plates, are connected between two blocks of steel plates by spring, hit to buffer that front end steel plate is subject to
It hits, extends the service life of first baffle 5 and second baffle 6；It, can be by the way that cover board 12 be screwed out dust storage chamber after long-time use
10, so that dust filtering piece, strainer and the filter screen in dust storage chamber 10 are cleared up or be replaced, it ensure that dust removing effects.
In the description of the present invention, it is to be understood that, term " center ", "front", "rear", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "top", "bottom" "inner", "outside" be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the scope of the invention.
Although the present invention be illustrated by specific embodiment, it will be appreciated by those skilled in the art that, do not departing from
In the case where the scope of the invention, various transformation and equivalent substitute can also be carried out to the present invention.In addition, being directed to particular condition or material
Material, can do various modifications to the present invention, without departing from the scope of the present invention.Therefore, the present invention is not limited to disclosed tool
Body embodiment, and should include the whole embodiments fallen within the scope of the appended claims.
Claims (8)
1. a kind of coal mine underground dust removal device, including cabinet (1) and bracket (2), it is characterised in that: on the left of the cabinet (1)
It is provided with air inlet (3), and negative-pressure air fan is installed on the right side of air inlet (3), and be provided with the first dedusting on the outside of negative-pressure air fan
Room (4)；It is equipped with first baffle (5) inside first dirt pocket (4), and is provided with second baffle on the right side of first baffle (5)
(6)；The first baffle (5) and second baffle (6) are made of two blocks of steel plates, and the steel plate of front end is connected to rear end by spring
Steel plate on, the Interal fixation of rear end is on the first dirt pocket (4) side wall；The second baffle (6) is fixedly arranged above junction chamber
(7), the first dust leg (8) and below second baffle (6) are installed；Flow deflector is provided on the right side of the junction chamber (7)；It is described to lead
Flow right is equipped with the second dirt pocket (9), and is provided with flow deflector fixing piece on the inside of flow deflector；Second dirt pocket (9)
It is internally provided with dust filtering piece, dust filtering piece is ellipsoidal structure and is in tilted layout in the second dirt pocket (9) that two pieces of dust filtering pieces are formed
One group of V-structure, along the second dirt pocket (9), three groups of V-structures are at least arranged in length direction；Dust is installed on the right side of the strainer
Room (10), and dust storage chamber (10) lower end is equipped with the second dust leg (11), is bolted on the right side of dust (10) cover board (12), lid
Plate (12) is equipped with wind pipe (13)；The front end of the wind pipe (13) is equipped with filter screen；It is equipped in wind pipe (13)
Spiral shape guide plate, and wind pipe (13) side wall is equipped with dedusting hole, guide plate guides dust spiral rotating, and in centrifugal force
It is discharged under effect by dedusting hole, dust drops down onto the second dust leg (11) under the effect of gravity；The bracket (2) is arranged in cabinet
(1) lower section；Bracket (2) lower end is hinged with universal wheel, while the two sides of universal wheel are also hinged with for that will state bracket (2) admittedly
It is scheduled on the bundle the thin end of the scroll (14) of place to use；First dust leg (8) lower end is equipped with the first dust bag (15)；Second collection
The second dust bag (16) are provided with below dirt pipe (11).
2. a kind of coal mine underground dust removal device according to claim 1, it is characterised in that: the first baffle (5) and
Second baffle (6), which is tilted to the left 45 °, to be arranged.
3. a kind of coal mine underground dust removal device according to claim 1, it is characterised in that: first dust bag (15)
The first dust leg (8) and the second dust leg (11) lower end are connected to by buckling (17) with the second dust bag (16).
4. a kind of coal mine underground dust removal device according to claim 1, it is characterised in that: the table for pricking the thin end of the scroll (14)
Face is equipped with several barb structures.
5. a kind of coal mine underground dust removal device according to claim 2, it is characterised in that: the first baffle (5) and
It is shiny surface on the front end face of second baffle (6).
6. a kind of coal mine underground dust removal device according to claim 1, it is characterised in that: the first baffle (5) and
The plate size of the front and back ends of second baffle (6) is identical, and four sides of two blocks of steel plates are connected by elastical cloth.
7. a kind of coal mine underground dust removal device according to claim 1, it is characterised in that: be equipped with gas in the universal wheel
Capsule (18).
8. a kind of coal mine underground dust removal device according to claim 1, it is characterised in that: the outside of the cabinet (1)
It is equipped with two handles (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811446092.0A CN109469504A (en) | 2018-11-29 | 2018-11-29 | A kind of coal mine underground dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811446092.0A CN109469504A (en) | 2018-11-29 | 2018-11-29 | A kind of coal mine underground dust removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109469504A true CN109469504A (en) | 2019-03-15 |
Family
ID=65673528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811446092.0A Withdrawn CN109469504A (en) | 2018-11-29 | 2018-11-29 | A kind of coal mine underground dust removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469504A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804102A (en) * | 2020-06-30 | 2020-10-23 | 中国矿业大学 | Distributed closed dry dust removal system for air return gallery and dust removal method thereof |
| CN113203141A (en) * | 2021-04-27 | 2021-08-03 | 宁夏医科大学 | Indoor haze fresh air removing system for large-scale public places |
| CN113565500A (en) * | 2021-07-01 | 2021-10-29 | 中国煤炭科工集团太原研究院有限公司 | Intelligent control dust removal system for coal mine and control method thereof |
| CN113638762A (en) * | 2021-09-02 | 2021-11-12 | 山西路桥第七工程有限公司 | Tunnel dust removal device |
| CN117135894A (en) * | 2023-10-27 | 2023-11-28 | 天津瑞利通科技有限公司 | Communication access network equipment case |
-
2018
- 2018-11-29 CN CN201811446092.0A patent/CN109469504A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804102A (en) * | 2020-06-30 | 2020-10-23 | 中国矿业大学 | Distributed closed dry dust removal system for air return gallery and dust removal method thereof |
| CN113203141A (en) * | 2021-04-27 | 2021-08-03 | 宁夏医科大学 | Indoor haze fresh air removing system for large-scale public places |
| CN113565500A (en) * | 2021-07-01 | 2021-10-29 | 中国煤炭科工集团太原研究院有限公司 | Intelligent control dust removal system for coal mine and control method thereof |
| CN113638762A (en) * | 2021-09-02 | 2021-11-12 | 山西路桥第七工程有限公司 | Tunnel dust removal device |
| CN113638762B (en) * | 2021-09-02 | 2024-02-09 | 山西路桥第七工程有限公司 | Tunnel dust collector |
| CN117135894A (en) * | 2023-10-27 | 2023-11-28 | 天津瑞利通科技有限公司 | Communication access network equipment case |
| CN117135894B (en) * | 2023-10-27 | 2024-01-16 | 天津瑞利通科技有限公司 | Communication access network equipment case |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109469504A (en) | A kind of coal mine underground dust removal device | |
| CN106268156A (en) | A kind of metal disintegrating machine dust arrester | |
| CN201899951U (en) | Combined dust removal and environment protection equipment for flue gas of smelting furnace | |
| CN109480694A (en) | Dust-separating appliance and dust catcher | |
| CN109025864A (en) | Dust removal system and dust removal method for dry drilling | |
| CN208912494U (en) | Sand classifying screening plant on a kind of construction site | |
| CN208858396U (en) | A kind of multi-functional mine ventilation dust pelletizing system | |
| CN103706213A (en) | Cyclone bag dust collector device | |
| CN209385168U (en) | A kind of coal mine underground dust removal device | |
| CN206982468U (en) | A kind of shot-blast cleaning machine | |
| CN110006711A (en) | A kind of underground mining wasted nickel catalyst sampler | |
| CN2825071Y (en) | Bag filter having vertical baffle plate | |
| CN108284488A (en) | A kind of band sawing machine | |
| CN208526061U (en) | A kind of bag filter | |
| CN208612714U (en) | Moveable fallen leaves collecting and pulverizing device | |
| CN203724956U (en) | Cyclone bag dust collector device | |
| CN202490777U (en) | Novel grain impurity-removing machine | |
| CN109139086A (en) | A kind of constructing tunnel dust exhaust apparatus | |
| CN207247929U (en) | Solid-gas separation flue | |
| CN108506232A (en) | Liftable fan based on stainless steel impeller | |
| CN210849856U (en) | Scrap iron collecting device of shot blasting machine | |
| CN207221620U (en) | Boiler high temperature bag filter | |
| CN209155345U (en) | Drawer type bag filter | |
| CN212068020U (en) | Industrial fan dust collector | |
| CN208787170U (en) | A kind of coal mine dust collecting |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190315 |