CN104960944A - Dust falling system for trestle type coal unloading - Google Patents

Dust falling system for trestle type coal unloading Download PDF

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Publication number
CN104960944A
CN104960944A CN201510389658.0A CN201510389658A CN104960944A CN 104960944 A CN104960944 A CN 104960944A CN 201510389658 A CN201510389658 A CN 201510389658A CN 104960944 A CN104960944 A CN 104960944A
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under
layer
mobile cover
nozzle
annular
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CN201510389658.0A
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CN104960944B (en
Inventor
陈旺生
李迁威
李丹天
涂福泉
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Wuhan University of Science and Engineering WUSE
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/18Preventing escape of dust
    • B65G69/185Preventing escape of dust by means of non-sealed systems
    • B65G69/188Preventing escape of dust by means of non-sealed systems with spraying means

Abstract

The invention relates to a dust falling system for trestle type coal unloading. According to the technical scheme, a movable water tank (5) is fixedly connected with a movable belt conveyor (1), the upper end of an upper moving cover (16) is fixed to a feeding port of a system platform (18), a lower moving cover (15) is located below the upper moving cover (16), and a synchronous lifting device (6) is connected with the lower moving cover (15) through a steel wire rope (7). An upper annular spraying device (8) is mounted on the inner wall of the upper moving cover (16). A dust sensor (9), a first layer lower annular spraying device (14), a radar level meter (11), a second layer lower annular spraying device (12) and a third layer lower annular spraying device (13) are sequentially mounted on the inner wall of the lower moving cover (15) from top to bottom. A high pressure water pump (4) is connected with the upper annular spraying device (8), the first layer lower annular spraying device (14), the second layer lower annular spraying device (12) and the third layer lower annular spraying device (13) respectively through high pressure water pipes (3). The dust falling system for trestle type coal unloading has the advantages of being small in water consumption, low in operation cost, good in dust removal effect and easy to maintain.

Description

A kind of dust falling system of unloading coal for trestle type
Technical field
The invention belongs to dust falling system technical field.In particular to a kind of dust falling system of unloading coal for trestle type.
Background technology
Coal enterprise's coal yard is due to reasons such as Flow of Goods and Materials, on-the-spot loading and unloading operation and wind disturbance, and coal dust fills the air in atmosphere, and the coal dust be suspended in air has explosion hazard, and coal dust loss can cause resource waste and pollution ambient environment.Have simple into storage system due to trestle type coal yard and invest the advantages such as low, therefore being adopted by a lot of coal yard at present.Coal is operationally directly unloaded by the moving belt conveyer at top by trestle type coal yard, can produce a large amount of coal dust, causes whole coal yard environment pollution.For solving the serious overrun issues of coal yard Dust Concentration, generally install drenching system at coal yard top and adopt veil depositing dust, but this system can cause whole coal storage canopy humidity large, sight line is poor, affects workman's operation, and water consumption is large, difficult in maintenance; Also coal yard is had to adopt retractable chute to reduce airborne dust, but chute serious wear, and dust removing effects is poor.
In a word, existing dust-settling technology ubiquity that water consumption is large, operating cost is high, difficult in maintenance, particle pollution scope is large and the problem such as dust removing effects is poor.
Summary of the invention
The present invention is intended to overcome prior art defect, and object is to provide that a kind of water consumption is little, operating cost is low, good dedusting effect and safeguard the dust falling system of simply unloading coal for trestle type.
For achieving the above object, the technical solution adopted in the present invention is: on the track of moving belt conveyer, portable tank is housed, portable tank is positioned at the front of moving belt conveyer discharge chute, and the vehicle wheel frame of moving belt conveyer is fixedly connected with by horizontal connector with the vehicle wheel frame of portable tank.System platform is fixedly connected with described horizontal connector by vertical attaching parts, and the middle position of system platform is provided with inlet point, and described inlet point is positioned at immediately below moving belt conveyer discharge chute.The upper uniform plane of system platform 3 ~ 4 synchronous lifting devices are housed, each synchronous lifting device is equal apart from the distance at inlet point center.The upper end of upper mobile cover is fixed on the inlet point place of system platform concentrically, and lower mobile cover is positioned at immediately below mobile cover, and 3 ~ 4 synchronous lifting devices are connected by the steel wire coupling link that respective steel rope is corresponding with lower mobile cover upper end.
Near on inwall place on even keel in the middle part of mobile cover annular atomising installation is housed, inwall on even keel near lower mobile cover top is equipped with 2 dust sensors, 2 dust sensors are along the circumferential direction arranged in 90 ° of angles, annular spray device under the inwall on lower mobile cover top is equipped with ground floor, inwall in the middle part of lower mobile cover is equipped with radar levelmeter, annular spray device under ring device and third layer under the inwall of lower mobile cover bottom is equipped with the second layer, under third layer, annular spray device is positioned at the below of ring device under the second layer.The water inlet of high-pressure hydraulic pump communicates with portable tank, and the water outlet of high-pressure hydraulic pump is communicated with annular spray device under third layer with ring device under annular spray device, the second layer under upper annular atomising installation, ground floor respectively by high-pressure water pipe.
Described dust falling system of unloading coal for trestle type is provided with controller.
Described annular atomising installation is made up of upper annular conduit and top nozzle.Upper annular conduit is radially equipped with 10 ~ 30 top nozzles inwardly equably, and top nozzle level is installed or installed obliquely, refers to that top nozzle and be less than 30 ° with the angle of horizontal surface obliquely upward.
Under described ground floor, annular spray device is made up of nozzle under annular conduit under ground floor and ground floor.Under ground floor, annular conduit is radially equipped with nozzle under 10 ~ 50 ground floors inwardly equably, and under ground floor, nozzle is installed in the horizontal direction; Between annular conduit and high-pressure water pipe, electromagnetic valve is housed under ground floor.
Under the described second layer, annular spray device is made up of nozzle under annular conduit under the second layer and the second layer.Under the second layer, annular conduit is radially equipped with nozzle under 10 ~ 50 second layers inwardly equably, and under the second layer, nozzle is installed in the horizontal direction.
Under described third layer, annular spray device is made up of nozzle under annular conduit under third layer and third layer.Under third layer, annular conduit is radially equipped with nozzle under 10 ~ 50 third layer inwardly equably, and under third layer, nozzle is installed straight down.
Described synchronous lifting device is made up of synchronous dynamo, retarder and reel; Synchronous dynamo is connected with drum shaft by retarder, and wirerope-winding is on reel.
The diameter of described upper mobile cover is 1.5 ~ 3m, and the diameter of lower mobile cover and the diameter ratio of upper mobile cover are (1.5 ~ 2.5) ︰ 1.
Described upper mobile cover length is 2 ~ 5m, and lower mobile cover length is 5 ~ 15m.
The input interface 1 of described controller is connected with radar levelmeter by cable, the input interface 2 of described controller is connected with dust sensor by cable, the output interface 1 of described controller is connected with 3 ~ 4 synchronous lifting devices respectively by cable, and the output interface 2 of described controller is connected with electromagnetic valve by cable.
The using state of the dust falling system of unloading coal for trestle type is, at the left end of moving belt conveyer, a set of described dust falling system of unloading coal for trestle type is housed, and at the right-hand member of moving belt conveyer, another set of described dust falling system of unloading coal for trestle type is housed.
During use, coal unloads on moving belt conveyer by unloading coal bunker, the belt of moving belt conveyer rotates to the left or to the right and is unloaded by discharge chute by coal, a set of described dust falling system of unloading coal for trestle type that coal falls into that left end is equipped with or the another set of described dust falling system of unloading coal for trestle type that right-hand member is equipped with.When coal is discharged to setting height, the level signals of measurement is fed back to controller by input interface 1 by radar levelmeter, control signal is exported to synchronous lifting device by output interface 1 again by controller, synchronous lifting device moves down dynamic cover by steel rope drive and moves up, and unloads coal at coal yard differing heights place to meet.When unloading coal, upper annular atomising installation carries out humidification to loose coal breakage, suppresses airborne dust.Under the second layer, under annular spray device and third layer, annular spray device, when coal breakage and dump impact, effectively suppresses a large amount of airborne dust of producing and to coal breakage and dump humidification.In addition in the dust sensor energy Real-Time Monitoring dust concentration that lower mobile cover top inner wall is installed, the dust concentration signal of monitoring is fed back to controller by input interface 2, respective switch signal is exported to electromagnetic valve by output interface 2 by controller, thus the switch of Controlling solenoid valve, realize unlatching or the closedown of annular spray device under ground floor, both depositing dust object had been reached, again reduce water consumption.
Owing to adopting technique scheme, the present invention compared with prior art has following good effect:
1, upper mobile cover and lower mobile cover and existing moving belt conveyer synchronizing moving, the coal dust that coal breakage produces suppresses, in lower mobile cover, to greatly reduce particle pollution scope, reduce treatment cost substantially.
2, under ground floor, annular spray device can realize unlatching or the closedown of electromagnetic valve according to dust concentration height, and then control and regulation water consumption, not only using water wisely, and effective to dust source control.
3, lower mobile cover is according to the material level of setting, under the driving of synchronous lifting device, can move up and down, can meet the requirement that different dump height is unloaded coal.
4, integral structure is simple, and operability is good, and not easily there was a mechanical failure.
Therefore, the present invention have that water consumption is little, operating cost is low, good dedusting effect and the simple feature of maintenance.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is that the A-A of Fig. 1 analyses and observe enlarged diagram;
Fig. 3 is that the B-B of Fig. 1 analyses and observe enlarged diagram;
Fig. 4 is that the C-C of Fig. 1 analyses and observe enlarged diagram;
Fig. 5 is that the D-D of Fig. 1 analyses and observe enlarged diagram;
Fig. 6 is the schematic diagram of the controller 23 in the present invention;
Fig. 7 is application schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described, the restriction not to its protection domain.
embodiment 1
A kind of dust falling system of unloading coal for trestle type.Described dust falling system as shown in Figure 1, the track of moving belt conveyer 1 is equipped with portable tank 5, portable tank 5 is positioned at the front of moving belt conveyer 1 discharge chute, and the vehicle wheel frame of moving belt conveyer 1 is fixedly connected with by horizontal connector 2 with the vehicle wheel frame of portable tank 5.System platform 18 is fixedly connected with described horizontal connector 2 by vertical attaching parts 17, and the middle position of system platform 18 is provided with inlet point, and described inlet point is positioned at immediately below moving belt conveyer 1 discharge chute.The upper uniform plane of system platform 18 4 synchronous lifting devices 6 are housed, each synchronous lifting device 6 is equal apart from the distance at inlet point center.The upper end of upper mobile cover 16 is fixed on the inlet point place of system platform 18 concentrically, and lower mobile cover 15 is positioned at immediately below mobile cover 16, and 4 synchronous lifting devices 6 are connected by the steel wire coupling link that respective steel rope 7 is corresponding with lower mobile cover 15 upper end.
As shown in Figure 1, near on inwall place on even keel in the middle part of mobile cover 16 annular atomising installation 8 is housed, the inwall on even keel near lower mobile cover 15 top is equipped with 2 dust sensors, 9,2 dust sensors 9 along the circumferential direction to be arranged in 90 ° of angles; Annular spray device 14 under the inwall on lower mobile cover 15 top is equipped with ground floor, inwall in the middle part of lower mobile cover 15 is equipped with radar levelmeter 11, annular spray device 13 under ring device 12 and third layer under the inwall of lower mobile cover 15 bottom is equipped with the second layer, under third layer, annular spray device 13 is positioned at the below of ring device 12 under the second layer.The water inlet of high-pressure hydraulic pump 4 communicates with portable tank 5, and the water outlet of high-pressure hydraulic pump 4 is communicated with annular spray device 13 under third layer with ring device 12 under annular spray device 14, the second layer under upper annular atomising installation 8, ground floor respectively by high-pressure water pipe 3.
Described dust falling system of unloading coal for trestle type is provided with controller 23.
As shown in Figure 2, described annular atomising installation 8 is made up of upper annular conduit 20 and top nozzle 19.Upper annular conduit 20 is radially equipped with 12 top nozzles 19 inwardly equably, and top nozzle 19 level is installed or installed obliquely, refers to that top nozzle 19 and be less than 30 ° with the angle of horizontal surface obliquely upward.
As shown in Figure 3, under described ground floor, annular spray device 14 is made up of nozzle 21 under annular conduit under ground floor 22 and ground floor.Under ground floor, annular conduit 22 is radially equipped with nozzle 21 under 12 ground floors inwardly equably, and under ground floor, nozzle 21 is installed in the horizontal direction; Between annular conduit 22 and high-pressure water pipe 3, electromagnetic valve 10 is housed under ground floor.
As shown in Figure 4, under the described second layer, annular spray device 12 is made up of nozzle 25 under annular conduit under the second layer 24 and the second layer.Under the second layer, annular conduit 24 is radially equipped with nozzle 25 under 20 second layers inwardly equably, and under the second layer, nozzle 25 is installed in the horizontal direction.
As shown in Figure 5, under described third layer, annular spray device 13 is made up of nozzle 27 under annular conduit under third layer 26 and third layer.Under third layer, annular conduit 26 is radially equipped with nozzle 27 under 30 third layer inwardly equably, and under third layer, nozzle 27 is installed straight down.
Described synchronous lifting device 6 is made up of synchronous dynamo, retarder and reel; Synchronous dynamo is connected with drum shaft by retarder, and steel rope 7 is wrapped on reel.
The diameter of described upper mobile cover 16 is 1.5 ~ 2.5m, and the diameter of lower mobile cover 15 and the diameter ratio of upper mobile cover 16 are (1.5 ~ 2.0) ︰ 1.
As shown in Figure 7, the trestle in the present embodiment is 30m apart from floor level; The length of described upper mobile cover 16 is 2 ~ 4m, and the length of lower mobile cover 15 is 5 ~ 10m.
As shown in Figure 6, the input interface 1 of described controller 23 is connected with radar levelmeter 11 by cable, the input interface 2 of described controller 23 is connected with dust sensor 9 by cable, the output interface 1 of described controller 23 is connected with 3 ~ 4 synchronous lifting devices 6 respectively by cable, and the output interface 2 of described controller 23 is connected with electromagnetic valve 10 by cable.
embodiment 2
A kind of dust falling system of unloading coal for trestle type.Except following technical parameter, all the other are with embodiment 1:
The quantity that the upper plane of system platform 18 is equipped with synchronous lifting device 6 is 3.
Upper annular conduit 20 is radially equipped with 10 ~ 11 or 13 ~ 30 top nozzles 19 inwardly equably.
Under ground floor, annular conduit 22 is radially equipped with nozzle 21 under 10 ~ 11 or 13 ~ 50 ground floors inwardly equably.
Under the second layer, annular conduit 24 is radially equipped with nozzle 25 under 10 ~ 19 or 21 ~ 50 second layers inwardly equably.
Under third layer, annular conduit 26 is radially equipped with nozzle 27 under 10 ~ 29 or 31 ~ 50 third layer inwardly equably.
The diameter of described upper mobile cover 16 is 2 ~ 3m, and the diameter of lower mobile cover 15 and the diameter ratio of upper mobile cover 16 are (2.0 ~ 2.5) ︰ 1.
As shown in Figure 7, the trestle in the present embodiment is 40m apart from floor level; Described upper mobile cover 16 length is 3 ~ 5m, and lower mobile cover 15 length is 10 ~ 15m.
The using state of the dust falling system of unloading coal for trestle type as shown in Figure 7, at the left end of moving belt conveyer 1, a set of described dust falling system 28 of unloading coal for trestle type is housed, at the right-hand member of moving belt conveyer 1, another set of described dust falling system 30 of unloading coal for trestle type is housed.
During use, coal unloads on moving belt conveyer 1 by unloading coal bunker 29, the belt of moving belt conveyer 1 rotates to the left or to the right and is unloaded by discharge chute by coal, a set of described dust falling system of unloading coal for trestle type that coal falls into that left end is equipped with or the another set of described dust falling system of unloading coal for trestle type that right-hand member is equipped with.When coal is discharged to setting height, the level signals of measurement is fed back to controller 23 by input interface 1 by radar levelmeter 11, control signal is exported to synchronous lifting device 6 by output interface 1 again by controller 23, synchronous lifting device 6 drives lower mobile cover 15 to move up by steel rope 7, unloads coal at coal yard differing heights place to meet.When unloading coal, upper annular atomising installation 8 carries out humidification to loose coal breakage, suppresses airborne dust.Under the second layer, under annular spray device 12 and third layer, annular spray device 13, when coal breakage and dump impact, effectively suppresses a large amount of airborne dust of producing and to coal breakage and dump humidification.In addition in the dust sensor 9 energy Real-Time Monitoring dust concentration that lower mobile cover 15 top inner wall is installed, the dust concentration signal of monitoring is fed back to controller 23 by input interface 2, respective switch signal is exported to electromagnetic valve 10 by output interface 2 by controller 23, thus the switch of Controlling solenoid valve 10, realize unlatching or the closedown of annular spray device 14 under ground floor, both depositing dust object had been reached, again reduce water consumption.
This detailed description of the invention compared with prior art has following good effect:
1, upper mobile cover 16 and lower mobile cover 15 and existing moving belt conveyer 1 synchronizing moving, the coal dust that coal breakage produces suppresses, in lower mobile cover 15, to greatly reduce particle pollution scope, reduce treatment cost substantially.
2, under ground floor, annular spray device 14 can realize unlatching or the closedown of electromagnetic valve 10 according to dust concentration height, and then control and regulation water consumption, not only using water wisely, and effective to dust source control.
3, lower mobile cover 15 is according to the material level of setting, under the driving of synchronous lifting device 6, can move up and down, can meet the requirement that different dump height is unloaded coal.
4, integral structure is simple, and operability is good, and not easily there was a mechanical failure.
Therefore, this detailed description of the invention have that water consumption is little, operating cost is low, good dedusting effect and the simple feature of maintenance.

Claims (9)

1. a dust falling system of unloading coal for trestle type, it is characterized in that the structure of described dust falling system is: portable tank (5) is housed on the track of moving belt conveyer (1), portable tank (5) is positioned at the front of moving belt conveyer (1) discharge chute, and the vehicle wheel frame of moving belt conveyer (1) is fixedly connected with by horizontal connector (2) with the vehicle wheel frame of portable tank (5); System platform (18) is fixedly connected with described horizontal connector (2) by vertical attaching parts (17), the middle position of system platform (18) is provided with inlet point, and described inlet point is positioned at immediately below moving belt conveyer (1) discharge chute; The upper uniform plane of system platform (18) 3 ~ 4 synchronous lifting devices (6) are housed, each synchronous lifting device (6) is equal apart from the distance at inlet point center; The upper end of upper mobile cover (16) is fixed on the inlet point place of system platform (18) concentrically, lower mobile cover (15) is positioned at immediately below mobile cover (16), and 3 ~ 4 synchronous lifting devices (6) are connected by the steel wire coupling link that respective steel rope (7) is corresponding with lower mobile cover (15) upper end;
Near on mobile cover (16) middle part inwall place on even keel upper annular atomising installation (8) is housed, inwall on even keel near lower mobile cover (15) top is equipped with 2 dust sensors (9), 2 dust sensors (9) are along the circumferential direction arranged in 90 ° of angles, annular spray device (14) under the inwall on lower mobile cover (15) top is equipped with ground floor, inwall near lower mobile cover (15) middle part is equipped with radar levelmeter (11), annular spray device (13) under ring device (12) and third layer under the inwall of lower mobile cover (15) bottom is equipped with the second layer, under third layer, annular spray device (13) is positioned at the below of ring device (12) under the second layer, the water inlet of high-pressure hydraulic pump (4) communicates with portable tank (5), and the water outlet of high-pressure hydraulic pump (4) is communicated with annular spray device (13) under third layer with ring device (12) under annular spray device (14), the second layer under upper annular atomising installation (8), ground floor respectively by high-pressure water pipe (3),
Described dust falling system of unloading coal for trestle type is provided with controller (23).
2. dust falling system of unloading coal for trestle type according to claim 1, is characterized in that described annular atomising installation (8) is made up of upper annular conduit (20) and top nozzle (19); Upper annular conduit (20) is radially equipped with 10 ~ 30 top nozzles (19) inwardly equably, top nozzle (19) level is installed or is installed obliquely, refers to that top nozzle (19) and be less than 30 ° with the angle of horizontal surface obliquely upward.
3. dust falling system of unloading coal for trestle type according to claim 1, under it is characterized in that described ground floor, annular spray device (14) is made up of nozzle (21) under annular conduit under ground floor (22) and ground floor; Under ground floor, annular conduit (22) is radially equipped with nozzle (21) under 10 ~ 50 ground floors inwardly equably, and under ground floor, nozzle (21) is installed in the horizontal direction; Between annular conduit (22) and high-pressure water pipe (3), electromagnetic valve (10) is housed under ground floor.
4. dust falling system of unloading coal for trestle type according to claim 1, under it is characterized in that the described second layer, annular spray device (12) is made up of nozzle (25) under annular conduit under the second layer (24) and the second layer; Under the second layer, annular conduit (24) is radially equipped with nozzle (25) under 10 ~ 50 second layers inwardly equably, and under the second layer, nozzle (25) is installed in the horizontal direction.
5. dust falling system of unloading coal for trestle type according to claim 1, under it is characterized in that described third layer, annular spray device (13) is made up of nozzle (27) under annular conduit under third layer (26) and third layer; Under third layer, annular conduit (26) is radially equipped with nozzle (27) under 10 ~ 50 third layer inwardly equably, and under third layer, nozzle (27) is installed straight down.
6. dust falling system of unloading coal for trestle type according to claim 1, is characterized in that described synchronous lifting device (6) is made up of synchronous dynamo, retarder and reel; Synchronous dynamo is connected with drum shaft by retarder, and steel rope (7) is wrapped on reel.
7. dust falling system of unloading coal for trestle type according to claim 1, the diameter that it is characterized in that described upper mobile cover (16) is 1.5 ~ 3m, and the diameter of lower mobile cover (15) and the diameter ratio of upper mobile cover (16) are (1.5 ~ 2.5) ︰ 1.
8. dust falling system of unloading coal for trestle type according to claim 1, it is characterized in that described upper mobile cover (16) length is 2 ~ 5m, lower mobile cover (15) length is 5 ~ 15m.
9. dust falling system of unloading coal for trestle type according to claim 1, it is characterized in that the input interface 1 of described controller (23) is connected with radar levelmeter (11) by cable, the input interface 2 of described controller (23) is connected with dust sensor (9) by cable, the output interface 1 of described controller (23) is connected with 3 ~ 4 synchronous lifting devices (6) respectively by cable, and the output interface 2 of described controller (23) is connected with electromagnetic valve (10) by cable.
CN201510389658.0A 2015-07-06 2015-07-06 Dust falling system for trestle type coal unloading Active CN104960944B (en)

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Publication number Priority date Publication date Assignee Title
WO2017127854A1 (en) * 2016-01-23 2017-07-27 I-Cat International Consulting And Trading (Pty) Ltd Dust suppression apparatus
CN107817834A (en) * 2017-11-13 2018-03-20 庄秋瑶 Storage dump water sprinkler
CN109677864A (en) * 2019-02-27 2019-04-26 中铁十二局集团有限公司 A kind of portable belt conveyer and " it " font earthwork digging method
CN109835696A (en) * 2019-04-09 2019-06-04 秦皇岛首创思泰意达环保科技有限公司 A kind of belt conveyor

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017127854A1 (en) * 2016-01-23 2017-07-27 I-Cat International Consulting And Trading (Pty) Ltd Dust suppression apparatus
CN107817834A (en) * 2017-11-13 2018-03-20 庄秋瑶 Storage dump water sprinkler
CN109677864A (en) * 2019-02-27 2019-04-26 中铁十二局集团有限公司 A kind of portable belt conveyer and " it " font earthwork digging method
CN109835696A (en) * 2019-04-09 2019-06-04 秦皇岛首创思泰意达环保科技有限公司 A kind of belt conveyor

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