CN109230650A - Inhibit the equipment, system and method for coal dust - Google Patents
Inhibit the equipment, system and method for coal dust Download PDFInfo
- Publication number
- CN109230650A CN109230650A CN201810793847.8A CN201810793847A CN109230650A CN 109230650 A CN109230650 A CN 109230650A CN 201810793847 A CN201810793847 A CN 201810793847A CN 109230650 A CN109230650 A CN 109230650A
- Authority
- CN
- China
- Prior art keywords
- water
- coal
- control
- water injector
- transferring
- 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
- 238000000034 method Methods 0.000 title claims abstract description 54
- 239000002817 coal dust Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 192
- 239000003245 coal Substances 0.000 claims abstract description 110
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 21
- 238000005303 weighing Methods 0.000 claims abstract description 21
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000001629 suppression Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000006399 behavior Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/185—Preventing escape of dust by means of non-sealed systems
- B65G69/188—Preventing escape of dust by means of non-sealed systems with spraying means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
Abstract
The present invention provides a kind of equipment, system and method for inhibiting coal dust, belong to the suppression technology field of the coal dust in coal transmission process.The equipment for inhibiting coal dust includes: water injector, is mounted in transferring tower, for spraying water to the belt feeder in the transferring tower downstream；Weighing belt, the coal flow on belt feeder for weighing the transferring tower upstream；And control device, for opening and closing the water injector according to the coal flow control.The present invention is by installing water injector in transferring tower and the water injector opened and closed in transferring tower is controlled according to the coal flow of transferring tower upstream, increase the humidity of coal, good anti-dust effect is played during the belt line of transferring tower and ship loader are loaded onto ship to coal, is played the role of to the clean manufacturing at harbour huge.
Description
Technical field
The present invention relates to the suppression technology of the coal dust in coal transmission process, more particularly to inhibiting the equipment of coal dust, be
System and method.
Background technique
Coal mode of movement is to be transferred to another belt feeder through transferring tower, then through transferring by expecting a belt feeder under silo
Tower is transferred to another belt feeder, and then coal is shipped on ship by ship loader, and coal is by one or more transferring towers
It transports from belt feeder onto ship, to pass through ship loader trailer funnel and the big shovel of ship loader, hold very much in coal switching process
Yi Qichen, if encountering strong wind weather, Coal Dust Exposure is more serious, is also more difficult to control.
Summary of the invention
The purpose of the embodiment of the present invention is that providing a kind of equipment, system and method for inhibiting coal dust, exist for solving coal
Dusting problems in transportational process.
To achieve the goals above, the present invention provides a kind of equipment for inhibiting coal dust, which includes: water injector,
It is mounted in transferring tower, for spraying water to the belt feeder in the transferring tower downstream；Weighing belt, for weighing the transferring tower upstream
Belt feeder on coal flow；And control device, for opening and closing the water injector according to the coal flow control.
Preferably, the control device is also used to the control in the case where the coal flow is greater than first predetermined value and opens institute
It states water injector to spray water, and the water injector is closed in control in the case where the coal flow is less than second predetermined value
To stop water spray.
Preferably, the water injector includes: multichannel water jet, has one or more water jets per water jet all the way；
And the control device is also used to the control in the case where the coal flow is greater than the predetermined value and opens once open
One or more water jet.
Preferably, the equipment further include: signal receiving device, for receiving water spray control signal；The control device is also
It controls opening correspondence for controlling signal according to the water spray in the case where being initially opened the water injector and sprays water all the way
Mouthful.
Preferably, the water injector further include: multiple solenoid valves connect one to one with the multichannel water jet, and one
One or more water jets in the water jet of road connect a solenoid valve jointly；The control device is by controlling the multiple electricity
Magnet valve controls the opening and closing of the multichannel water jet respectively.
Preferably, the signal receiving device is also used to receive coal conveying process run signal, and the control device exists
The coal conveying process run signal is the control closing water injector in the case where stop signal.
Correspondingly, the present invention also provides a kind of system for inhibiting coal dust, which includes: multiple suppressions described above
The equipment of coal dust processed is separately positioned on coal and conveys in multiple transferring towers experienced, and an equipment is arranged in multiple transferring towers
A transferring tower in.
Correspondingly, the present invention also provides a kind of methods for inhibiting coal dust, this method comprises: weighing the skin of transferring tower upstream
With the coal flow on machine；And the water injector being mounted in the transferring tower is opened and closed according to the coal flow control；
Wherein the water injector is used to spray water to the belt feeder in the transferring tower downstream.
Preferably, opening and closing the water injector being mounted in the transferring tower according to the coal flow control includes:
In the case where the coal flow is greater than first predetermined value, control opens the water injector and sprays water；And in the coal
In the case that flow is less than second predetermined value, control closes the water injector to stop spraying water.
Preferably, this method further include: receive coal and convey process run signal；And in coal conveying process fortune
Row signal is the control closing water injector in the case where stop signal.
Through the above technical solutions, the present invention in transferring tower by installing water injector and according to the coal of transferring tower upstream
Flow come control open and close transferring tower in water injector, increase the humidity of coal, to coal transferring tower belt
Good anti-dust effect is played during line and ship loader shipment, is played the role of to the clean manufacturing at harbour huge.
The other feature and advantage of the embodiment of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is to further understand for providing to the embodiment of the present invention, and constitute part of specification, under
The specific embodiment in face is used to explain the present invention embodiment together, but does not constitute the limitation to the embodiment of the present invention.Attached
In figure:
Fig. 1 is the equipment block diagram provided by the invention for inhibiting coal dust；
Fig. 2 is the work flow diagram provided by the invention for opening water injector；
Fig. 3 is the work flow diagram provided by the invention for closing water injector；And
Fig. 4 is the method flow diagram provided by the invention for inhibiting coal dust.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the embodiment of the present invention.It should be understood that this
Locate described specific embodiment and be merely to illustrate and explain the present invention embodiment, is not intended to restrict the invention embodiment.
Fig. 1 is the equipment block diagram provided by the invention for inhibiting coal dust, as shown in Figure 1, the equipment includes water injector, belt
Scale and control device, wherein water injector is mounted in transferring tower, for spraying water to the belt feeder in transferring tower downstream；Weighing belt,
The coal flow on belt feeder for weighing transferring tower upstream；Control device is used to be opened and closed according to coal flow control and spray water
Device.
It is easy to cause Coal Dust Exposure when coal is forwarded to next belt feeder via transferring tower, so the present invention will
Water injector is arranged in transferring tower, sprays to the belt feeder (actually to the coal on belt feeder) in transferring tower downstream
Water, it is possible to reduce coal caused coal dust when going to next belt feeder via transferring tower.
It should be appreciated that Coal Dust Exposure is less in the lower situation of coal flow, also there is no need to inhibit the behaviour of coal dust
Make, and in the higher situation of coal flow, Coal Dust Exposure is more, is necessary the behaviour for carrying out inhibiting coal dust at this time.Here should
It is noted that weighing belt employed in the present invention is used to weigh the coal flow on belt feeder, and weighing belt weighing is to turn
Connect the coal flow on the belt feeder of tower upstream, it is readily appreciated that, if weighing belt weighing is on the belt feeder in transferring tower downstream
Coal flow water injector is arranged in transferring tower just nonsensical.
Specifically, control device is also used to the control in the case where coal flow is greater than first predetermined value and opens water injector
It sprays water, and control closes water injector to stop spraying water in the case where coal flow is less than second predetermined value.Wherein,
One predetermined value and second predetermined value can be the same or different, in order to avoid control device is to the frequent operation of water injector,
First predetermined value and second predetermined value can be different.Here for the convenience of description, assuming first predetermined value and second predetermined value phase
Together, predetermined value for example can be 3000 ton/hours, then in the case where coal flow is greater than 3000 ton/hours, control device control
Water injector processed is sprayed water, in the case where coal flow is less than 3000 ton/hours, control device control close water injector with
Stop water spray.
It has to be noted here that weighing belt weighed is coal flow on the belt feeder of transferring tower upstream, passed through in coal
There are a time difference when just being weighed with weighing belt when being forwarded to next belt feeder by transferring tower, thus, control device is also
It sprays water for controlling opening water injector after the predetermined time in the case where coal flow is greater than first predetermined value, and
In the case where coal flow is less than second predetermined value, control closes water injector to stop spraying water after the predetermined time.Here exist
Control device control sets the lag of a predetermined time before opening water injector and control closing water injector, with accurately
Water spray control is carried out for weighed part coal.This predetermined time can be according to the position of weighing belt and belt feeder
Running speed precalculates to obtain.
Specifically, water injector includes multichannel water jet, has one or more water jets per water jet all the way；And
Control device is also used to the control in the case where coal flow is greater than predetermined value and opens one or more water jet once opened.
That is, water injector has multiple water jets, this multiple water jet can be divided into multichannel, every to spray water all the way
Mouth has one or more water jets, for example, water injector can have three water jets, these three water jets are divided into two
Road, wherein water jet (first via water jet) has a water jet all the way, another way water jet (the second road water jet) has
Two water jets one water jet of first via water jet can be arranged in middle position, by the second tunnel when setting
Two water jets in water jet are separately positioned on the two sides of the water jet all the way with a water jet, that is to say, that three
In water jet, an intermediate water jet is that all the way, two water jets of two sides are another way.Control device is in control water spray dress
When setting water spray, it can only control first via water jet and spray water, can also only control the second road water jet and spray water, may be used also
To control first via water jet and the second road water jet while spray water.
Under normal circumstances, coal conveying process it is constant in the case where, coal dust rise a dirt degree be also it is much the same, for
The control of water spray is there is no need to change, so control device only needs to control water injector according to jet flow amount and carries out the same manner
Water spray.For example, in the case where coal flow is greater than predetermined value, if the last time is that first via water jet is sprayed water,
This time still open first via water jet spray water, if the last time be first via water jet and the second road water jet together
It sprays water, then this time also opening first via water jet and the second road water jet are sprayed water together.
However, changing in coal conveying process, (then the coal conveying process before generally stopping restarts new again
Coal convey process, such as just need in the case where changing coal to change coal and convey process) in the case where, be initially opened
Water injector, which carries out water spray, to be controlled manually by operator, thus, the equipment provided by the invention for inhibiting coal dust
It further include signal receiving device, for receiving water spray control signal；Control device is also used in the feelings for being initially opened water injector
It is controlled under condition according to water spray control signal and opens corresponding water jet all the way.
That is, it is according to the spray received that control device, which is initially opened water injector, after coal conveying process changes
Water management signal is come what is carried out, if water spray control signal designation opens first via water jet, control device is controlled according to water spray
Signal processed opens first via water jet, if water spray control signal designation opens the second road water jet, control device is according to spray
Water management signal opens the second road water jet.
Water injector further includes multiple solenoid valves, is connected one to one with multichannel water jet, all the way one in water jet
Or multiple water jets connect a solenoid valve jointly；Control device controls multichannel water jet by controlling multiple solenoid valves respectively
Opening and closing.Specifically, water jet, control device are that water spray is controlled by solenoid valve all the way for a solenoid valve connection
The opening and closing of mouth, for example, first via water jet (there is a water jet) first solenoid valve of connection, the second road water jet
(there are two water jets for tool) connection second solenoid valve, then then opening the first via when control device controls and opens the first solenoid valve
Water jet (has a water jet), and then opening the second road water jet when control device controls and opens second solenoid valve (has
Two water jets).
In addition, water injector continues to spray water under coal conveying system failure in order to prevent, signal receiving device is also used to
It receives coal and conveys process run signal, control device is controlled in the case where coal conveying process run signal is stop signal
Close water injector.Certainly, if water injector is in pass in the case where coal conveying process run signal is stop signal
Closed state, then solenoid valve is failure to actuate.
The coal conveying process run signal that coal conveying system issues under coal conveying system fault condition is to stop
Signal, such as the coal conveying process run signal issued when the stopping of coal conveying process, belt line emergency stop is to stop
Stop signal, otherwise, the coal conveying process run signal that coal conveying system issues is normal operation signal.
Fig. 2 is the work flow diagram provided by the invention for opening water injector, as shown in Fig. 2, the process includes:
Step 201, coal flow is received, weighing belt weighs the coal flow on the belt feeder of transferring tower upstream, and is sent to control
Device processed, control device receive the coal flow on the belt feeder for the transferring tower upstream that weighing belt weighs, which is that signal is wireless
The general step of transmission, thus be not described hereinbefore.
Step 202, judge whether coal flow is greater than first predetermined value, if judging result be otherwise without it is any movement after
It is continuous that the received coal flow of subsequent time institute is judged, if the determination result is YES then enter step 203.
Step 203, judge whether to receive stop signal refer here to whether judge coal conveying process run signal
For stop signal, if the determination result is YES then illustrate that belt conveyor system failure terminates process at this time, if otherwise judging result is
Enter step 204.
Step 204, timing is carried out to the predetermined time, such as the predetermined time is 52 seconds, then to progress timing in 52 seconds.
Step 205, the predetermined time in judgment step 204, whether timing was completed, if timing completion thens follow the steps 206,
Continue timing if timing does not complete.
Step 206, water injector is opened.
Fig. 3 is the work flow diagram provided by the invention for closing water injector, as shown in figure 3, the process includes:
Step 301, coal flow is received, weighing belt weighs the coal flow on the belt feeder of transferring tower upstream, and is sent to control
Device processed, control device receive the coal flow on the belt feeder for the transferring tower upstream that weighing belt weighs, which is that signal is wireless
The general step of transmission, thus be not described hereinbefore.
Step 302, judge whether coal flow is less than second predetermined value, if judging result be otherwise without it is any movement after
It is continuous that the received coal flow of subsequent time institute is judged, if the determination result is YES then enter step 303.
Step 303, timing is carried out to the predetermined time, such as the predetermined time is 52 seconds, then to progress timing in 52 seconds.
Step 304, the predetermined time in judgment step 303, whether timing was completed, if timing completion thens follow the steps 305,
Continue timing if timing does not complete.
Step 305, water injector is closed.
In coal transmission process, need to undergo multiple transferring towers, it is defeated by the belt feeder of transferring tower downstream each time
It delivers coal charcoal, can all cause dirt, thus suppression described above can be respectively set in multiple transferring towers according to the actual situation
The equipment of coal dust processed.Correspondingly, the present invention also provides the system for inhibiting coal dust, which includes multiple suppressions described above
The equipment of coal dust processed is separately positioned on coal and conveys in multiple transferring towers experienced, and an equipment is arranged in multiple transferring towers
A transferring tower in.That is, a transferring tower is correspondingly arranged more than one described equipment for inhibiting coal dust.
In addition, in coal conveying, it is possible to while coal, each conveying process are conveyed simultaneously by multiple conveying processes
The switching that belt feeder is realized by multiple transferring towers is required, however, no matter there are several conveying processes, each transferring tower can
Equipment inhibition coal dust described above is arranged, especially needs to be arranged inhibition coal dust on the transferring tower of belt feeder to ship
Equipment because ship loader for dock rise dirt be it is most rambunctious, Coal Transport from belt feeder to ship on, need by ship loader
Trailer funnel and ship loader big shovel have been easy dirt in coal switching process, if encountering strong wind weather, Coal Dust Exposure is more difficult to control
System increases coal humidity, effectively inhibits transferring tower, skin after being provided with the equipment provided by the invention for inhibiting coal dust
Coal dust with machine and ship loader shipment process, plays the role of good clean manufacturing.
Fig. 4 is the method flow diagram provided by the invention for inhibiting coal dust, as shown in figure 4, the process includes:
Step 401, the coal flow on the belt feeder of transferring tower upstream is weighed；
Step 402, the water injector being mounted in transferring tower is opened and closed according to coal flow control, wherein water injector
For spraying water to the belt feeder in transferring tower downstream.
Preferably, opening and closing the water injector being mounted in transferring tower according to coal flow control includes: in coal flow
In the case where first predetermined value, control opens water injector and sprays water；And it is less than second predetermined value in coal flow
In the case of, control closes water injector to stop spraying water.
Preferably, the method provided by the invention for inhibiting coal dust further include: receive coal and convey process run signal；And
In the case where coal conveying process run signal is stop signal, water injector is closed in control.
It should be noted that it is provided by the invention inhibit coal dust method detail and benefit with it is provided by the invention
The equipment for inhibiting coal dust is similar, and in this, it will not go into details.
The optional embodiment of the embodiment of the present invention is described in detail in conjunction with attached drawing above, still, the embodiment of the present invention is simultaneously
The detail being not limited in above embodiment can be to of the invention real in the range of the technology design of the embodiment of the present invention
The technical solution for applying example carries out a variety of simple variants, these simple variants belong to the protection scope of the embodiment of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the embodiment of the present invention pair
No further explanation will be given for various combinations of possible ways.
It will be appreciated by those skilled in the art that implementing the method for the above embodiments is that can pass through
Program is completed to instruct relevant hardware, which is stored in a storage medium, including some instructions are used so that single
Piece machine, chip or processor (processor) execute all or part of the steps of each embodiment the method for the application.And it is preceding
The storage medium stated includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), magnetic or disk.
In addition, any combination can also be carried out between a variety of different embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is violated, equally should be considered as disclosure of that of the embodiment of the present invention.
Claims (10)
1. a kind of equipment for inhibiting coal dust, which is characterized in that the equipment includes:
Water injector is mounted in transferring tower, for spraying water to the belt feeder in the transferring tower downstream；
Weighing belt, the coal flow on belt feeder for weighing the transferring tower upstream；And
Control device, for opening and closing the water injector according to the coal flow control.
2. equipment according to claim 1, which is characterized in that the control device is also used to be greater than the in the coal flow
Control opens the water injector and sprays water in the case where one predetermined value, and is less than second predetermined value in the coal flow
In the case of control close the water injector to stop spraying water.
3. equipment according to claim 1 or 2, which is characterized in that the water injector includes:
Multichannel water jet has one or more water jets per water jet all the way；And
What the control device was also used to once open in control opening in the case where the coal flow is greater than the predetermined value
One or more water jet.
4. equipment according to claim 3, which is characterized in that the equipment further include:
Signal receiving device, for receiving water spray control signal；
The control device is also used to control signal according to the water spray to control in the case where being initially opened the water injector
System opens corresponding water jet all the way.
5. equipment according to claim 4, which is characterized in that the water injector further include:
Multiple solenoid valves connect one to one with the multichannel water jet, and one or more water jets in water jet are total all the way
With one solenoid valve of connection；
The control device controls the opening and closing of the multichannel water jet by controlling the multiple solenoid valve respectively.
6. equipment according to claim 4, which is characterized in that the signal receiving device is also used to receive coal transport Stream
Journey run signal, the control device convey process run signal in the coal and close institute to control in the case where stop signal
State water injector.
7. a kind of system for inhibiting coal dust, which is characterized in that the system includes:
It is experienced more to be separately positioned on coal conveying for equipment described in any one of multiple Claims 1-4 claim
In a transferring tower, an equipment is arranged in a transferring tower of multiple transferring towers.
8. a kind of method for inhibiting coal dust, which is characterized in that this method comprises:
Weigh the coal flow on the belt feeder of transferring tower upstream；And
The water injector being mounted in the transferring tower is opened and closed according to the coal flow control；
Wherein the water injector is used to spray water to the belt feeder in the transferring tower downstream.
9. according to the method described in claim 8, it is characterized in that, being mounted on institute according to coal flow control opening and closing
The water injector stated in transferring tower includes:
In the case where the coal flow is greater than first predetermined value, control opens the water injector and sprays water；And
In the case where the coal flow is less than second predetermined value, control closes the water injector to stop spraying water.
10. method according to claim 8 or claim 9, which is characterized in that this method further include:
It receives coal and conveys process run signal；And
In the case where coal conveying process run signal is stop signal, the water injector is closed in control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810793847.8A CN109230650B (en) | 2018-07-19 | 2018-07-19 | Apparatus, system and method for suppressing coal dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810793847.8A CN109230650B (en) | 2018-07-19 | 2018-07-19 | Apparatus, system and method for suppressing coal dust |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109230650A true CN109230650A (en) | 2019-01-18 |
| CN109230650B CN109230650B (en) | 2021-06-04 |
Family
ID=65072127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810793847.8A Active CN109230650B (en) | 2018-07-19 | 2018-07-19 | Apparatus, system and method for suppressing coal dust |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6199684B1 (en) * | 1997-02-17 | 2001-03-13 | Gladstone Port Authority | Bulk materials loading device |
| CN2424166Y (en) * | 2000-06-21 | 2001-03-21 | 王贵生 | Spraying and dust removing automatic controller of leather belt conveyer |
| CN203044225U (en) * | 2012-12-24 | 2013-07-10 | 李宝庆 | Aerial fog dust suppression device of transfer station microcomputer |
| CN203717018U (en) * | 2014-01-15 | 2014-07-16 | 济宁矿业集团有限公司 | Belt coal flow automatic spray and dust suppression control device |
| CN203754036U (en) * | 2014-03-05 | 2014-08-06 | 辽宁东科环保有限公司 | Unpowered dust collecting device |
-
2018
- 2018-07-19 CN CN201810793847.8A patent/CN109230650B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6199684B1 (en) * | 1997-02-17 | 2001-03-13 | Gladstone Port Authority | Bulk materials loading device |
| CN2424166Y (en) * | 2000-06-21 | 2001-03-21 | 王贵生 | Spraying and dust removing automatic controller of leather belt conveyer |
| CN203044225U (en) * | 2012-12-24 | 2013-07-10 | 李宝庆 | Aerial fog dust suppression device of transfer station microcomputer |
| CN203717018U (en) * | 2014-01-15 | 2014-07-16 | 济宁矿业集团有限公司 | Belt coal flow automatic spray and dust suppression control device |
| CN203754036U (en) * | 2014-03-05 | 2014-08-06 | 辽宁东科环保有限公司 | Unpowered dust collecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109230650B (en) | 2021-06-04 |
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