CN105134210B - A kind of external high pressure automatic spray dust removal device of coal-winning machine and method - Google Patents
A kind of external high pressure automatic spray dust removal device of coal-winning machine and method Download PDFInfo
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- CN105134210B CN105134210B CN201510543104.1A CN201510543104A CN105134210B CN 105134210 B CN105134210 B CN 105134210B CN 201510543104 A CN201510543104 A CN 201510543104A CN 105134210 B CN105134210 B CN 105134210B
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Abstract
A kind of external high pressure automatic spray dust removal device of coal-winning machine and method, including power switch, power switch is connected to on-off transducer, on-off transducer detection coal-winning machine is opened, stop, on-off transducer is connected to master controller, the side of master controller is connected with water charging system, opposite side is connected to electromagnetic trigger valve, electromagnetic trigger valve is connected to high-pressure hydraulic pump, the startup of high-pressure hydraulic pump is controlled by receiving signal that master controller sends, water charging system is connected to high-pressure hydraulic pump, to feed water to high-pressure hydraulic pump, high-pressure hydraulic pump is connected to high pressure jet rose, high pressure jet rose is installed on coal-winning machine, atomizing de-dusting is carried out to dust caused by coal-winning machine coal mining process.Realize that automatically controlling nozzle sprays droplet, realizes that spray process automates, the start-stop of sprayer unit and coal-winning machine is linked up by on-off transducer, continue atomizing de-dusting in the coal-winning machine course of work, dust reduction rate is high, and high-pressure hydraulic pump pressurizes to water, will not plug nozzle.
Description
Technical field
The present invention relates to coal-winning machine dust prevention and control technical field, and in particular to a kind of external high pressure auto spraying drop of coal-winning machine
Dirt device and method.
Background technology
Mining mechanization degree improves constantly, and coal mining machine roller coal cutting, which produces substantial amounts of dust, turns into coal-face dust
Prevention emphasis.At present, coal mining machine roller generally use wet spray dust-settling technology control dust, i.e., dropped using water spray
Dirt.
The water of general coal miner spray system is provided by motor cooling line, and the water-resistant pressure of motor is usually no more than
2.2Mpa, the possibility for improving internal spraying hydraulic pressure is limited, so as to inhibit the dustfall efficiency of internal spraying dust falling system.Former West Germany
External spray for dust suppression is implemented to coal-winning machine coal cutting roller in Wa Ersumu ore deposits, face dust concentration reduces 30~35%.
The external spraying high-tension apparatuses of coal-winning machine 5Mpa and the 1.5Mpa internal spraying equipment dust reduction rates that former Soviet Union develops can reach 98%, and
Considerably reduce water consumption.Have in France, the former Soviet Union and the external spray technique of U.S.'s high pressure and try out earlier.High pressure is external
Spray technique and the external atomizing de-dusting technology of airborne pump high pressure also have pilot application in collieries such as Shanxi Province, China the Lushui River peaces.
According to the actual conditions of current coal-winning machine coal cutting dust, most of coal-winning machine carries internal spraying system and external spraying
The dust removing effects of system are very undesirable.Main cause is that the inside and outside mouth mist dust-laying effect of coal-winning machine is influenceed by water quality, is sprayed
Nozzle aperture footpath blocks more serious；Next to that nozzle lacks structure design, mounting means and the rational spray parameters of science；Again
It is that spraying system automaticity is generally relatively low.
Therefore, it is necessary to a kind of more preferable automatic spray dust removal device is designed, to solve the above problems.
The content of the invention
The problem of existing for prior art, it is high that the present invention provides a kind of dust reduction rate, and can be outside the coal-winning machine of auto spraying
Put high pressure automatic spray dust removal device and method.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of external high pressure automatic spray dust removal device of coal-winning machine, including power switch, the power switch are connected to out
Stop sensor, the on-off transducer detect opening, stopping for the coal-winning machine, and the on-off transducer is connected to master controller, institute
The side for stating master controller is connected with water charging system, and opposite side is connected to electromagnetic trigger valve, and the electromagnetic trigger valve is connected to height
Water pump, the startup of the high-pressure hydraulic pump is controlled by receiving signal that the master controller sends, the water charging system connects
The high-pressure hydraulic pump is connected to, to feed water to the high-pressure hydraulic pump, the high-pressure hydraulic pump is connected to high pressure jet rose, described
High pressure jet rose is installed on the coal-winning machine, and atomizing de-dusting is carried out to dust caused by the coal-winning machine coal mining process.
Further, the power switch and the on-off transducer are arranged on the coal-winning machine, the master controller, institute
Electromagnetic trigger valve, the high-pressure hydraulic pump and the water charging system is stated to be mounted on equipment train.
Further, the power switch is a kind of circuit arrangement, while controls the coal-winning machine and the master controller
Start-stop.
Further, the water charging system is connected to the master controller including water level controller, the water level controller
Side is connected to Automatic water tank, and opposite side is connected to electrical ball valve, and the electrical ball valve controls water inlet pipe start-stop, the electric ball
Valve is connected to the Automatic water tank by pipeline, and the Automatic water tank is connected to negative pressure water filter, the negative pressure water quality mistake
Filter is connected to the high-pressure hydraulic pump.
Further, the high-pressure hydraulic pump is connected to threeway by braided steel wire rubber tube, and the two of which of the threeway is opened
Mouth is connected to two high pressure jet roses, and two high pressure jet roses are located at the forward and backward rolling of coal-winning machine respectively
On cylinder.
Further, the master controller is mining ZP-127Z automatic dust suppression device by water spray main frame.
Further, fluid hybrid chamber is provided with inside the high pressure jet rose, water enters described after high-pressure hydraulic pump pressurizes
Mixing accumulation in fluid hybrid chamber, jet mixing of completion is broken to form drop, and the fluid hybrid chamber opens outward is provided with more
Bar exhalant canal, the end of the exhalant canal are provided with spray orifice, and the drop projected by the spray orifice is completed secondary explosion and crushed, shape
Into droplet.
Further, the exhalant canal includes positioned at a middle exhalant canal and inclined from the fluid hybrid chamber
Six exhalant canals tiltedly to stretch out, six exhalant canals are uniformly distributed in around the fluid hybrid chamber.
A kind of method using the external high pressure automatic spray dust removal device of above-mentioned coal-winning machine, including：
Step 1：The power switch is opened, controls the coal-winning machine to open, the on-off transducer detects described adopt
The current signal that coal machine starts, and signal is fed back into the master controller；
Step 2：For the master controller simultaneously to the water charging system, the electromagnetic trigger valve sends current signal, described
When electromagnetic trigger valve receives signal, start the high-pressure hydraulic pump, and water is supplied to the high-pressure hydraulic pump by the water charging system；
Step 3：It is lower used in pressurization of the water in high-pressure hydraulic pump to enter the high pressure jet rose, in the porous spray of the high pressure
First mixing aggregation in mouth, completes a jet mixing and crushes, then broken by the secondary explosion of spray orifice injection completion, forms droplet
Atomizing de-dusting is carried out to adopting caused dust during the coal machine is mined.
Further, the water charging system includes water level controller, electrical ball valve, Automatic water tank and negative pressure water filter,
When the water level controller receives the current signal that the master controller is sent, start and monitor water level in the Automatic water tank
Just, when the upper limit of the water level in the Automatic water tank higher than setting water level or the lower limit less than setting water level, the water level
Controller sends the signal turned off or on to the electrical ball valve, to stop or start water supply, ensures in the Automatic water tank
Water supply the high-pressure hydraulic pump enough, water filters before entering the high-pressure hydraulic pump through the negative pressure water filter.
Beneficial effects of the present invention：
The present invention is realized by on-off transducer and automatically controlled using the external automatic spray dust removal device of coal-winning machine is arranged on
Nozzle sprays droplet, realizes that spray process automates, the start-stop of sprayer unit and coal-winning machine is linked up, worked in coal-winning machine
During continue atomizing de-dusting, dust reduction rate is high.And hydraulic pressure is improved by high-pressure hydraulic pump, then sprayed by high pressure jet rose, make
The problem of atomisation pressure is high, and high-pressure fog can overcome nozzle easily to block, it is small with caused mist droplet particle size, improve droplet with
The collision efficiency of dust, improve droplet atomization, realize that nozzle atomization forms the good depositing dust mist torch of closure, and then improve
The dust dustfall efficiency of coal-winning machine, improve coal-face work circumstances safe and quality.
Brief description of the drawings
Fig. 1 is the structural representation of the external high pressure automatic spray dust removal device of coal-winning machine of the present invention；
Fig. 2 is the structural representation of high pressure jet rose of the present invention；
Fig. 3 is Fig. 2 top view；
In figure, 1-power switch, 2-on-off transducer, 3-master controller, 4-electromagnetic trigger valve, 5-high-pressure hydraulic pump,
6-water level controller, 7-electrical ball valve, 8-Automatic water tank, 9-negative pressure water filter, 10-regulating valve, 11-threeway,
12-braided steel wire rubber tube, 13-side cover bolt installation steel plate, 14-high pressure jet rose, 15-coal-winning machine, 16-roller
Rocking arm, 17-roller, 18-fluid hybrid chamber, 19-exhalant canal, 20-spray orifice.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1, the external high pressure automatic spray dust removal device of coal-winning machine of the present invention includes power switch 1, and power switch 1 connects
In on-off transducer 2, on-off transducer 2 is installed on coal-winning machine 15, to detect the opening of coal-winning machine 15, stop, on-off transducer 2
Master controller 3 is connected to, the side of master controller 3 is connected with water charging system, and opposite side is connected to electromagnetic trigger valve 4, and electromagnetism opens
Dynamic valve 4 is connected to high-pressure hydraulic pump 5, and electromagnetic trigger valve 4 receives the startup of control high-pressure hydraulic pump 5 after the signal that master controller 3 is sent,
Water charging system is connected to high-pressure hydraulic pump 5, and to feed water to high-pressure hydraulic pump 5, high-pressure hydraulic pump 5 is connected to high pressure jet rose 14,
High pressure jet rose 14 is installed on coal-winning machine 15, and atomizing de-dusting processing is carried out to dust caused by the coal mining process of coal-winning machine 15.
Power switch 1 and on-off transducer 2 are installed on coal-winning machine 15, and power switch 1 is to be used to control coal-winning machine 15
Motor and external high pressure automatic spray dust removal device operation start-stop circuit arrangement, on-off transducer 2 be used for detect coal-winning machine
15 open, the current signal in stopping time, feed back to master controller 3, master controller 3 receive control sprayer unit after current signal open,
Stop, thus the present invention can control and detect simultaneously coal-winning machine 15 open, stop and control opening, stopping for master controller, realize coal-winning machine
15 with the linkage of high-pressure spraying system for dust suppression, to ensure in coal-winning machine running, the continual work of sprayer unit is real
Existing automated spray depositing dust.
Master controller 3, electromagnetic trigger valve 4, high-pressure hydraulic pump 5 and water charging system are mounted on equipment train, are formed external
Pressure atomization system for high, the external device for reducing dust of coal-winning machine 15, it is possible to increase total dustfall efficiency of coal-winning machine 15, due to external spraying
The atomisation pressure of device for reducing dust is up to 20Mpa, the problem of high-pressure fog can overcome nozzle easily to block.
Master controller 3 is mining ZP-127Z automatic dust suppression device by water spray main frame, is detected for receiving on-off transducer 2
Coal-winning machine 15 open, stop current signal, and send current signal, electromagnetic trigger valve 4 to electromagnetic trigger valve 4, water charging system simultaneously
When reception master controller 3 sends current signal, enabled instruction is sent to high-pressure hydraulic pump 5, while water charging system is that high-pressure hydraulic pump 5 supplies
Water.
Water charging system includes water level controller 6, electrical ball valve 7, Automatic water tank 8, negative pressure water filter 9, water level control
Device 6 is connected to master controller 3, and the side of water level controller 6 is connected to Automatic water tank 8, and opposite side is connected to electrical ball valve 7, electricity
Dynamic ball valve 7 controls opening, stopping for water inlet pipe, and electrical ball valve 7 is connected to Automatic water tank 8 by pipeline, and Automatic water tank 8 is connected to negative pressure
Water filter 9, negative pressure water filter 9 are connected to high-pressure hydraulic pump 5.When water level controller 6 receives what the device of main control 3 was sent
During current signal, water level controller 6 starts the height of water level in monitoring Automatic water tank 8, in the present embodiment, Automatic water tank 8
Volume should be at least 2.0m3, in other embodiments, the volume of Automatic water tank 8 can be set according to being actually needed.
Automatic water tank 8 is used to store the water needed for spraying, when the upper limit or low horizontal higher than setting of water level in Automatic water tank 8
When the lower limit of water level is set, water level controller 6 sends closing, open signal from trend electrical ball valve 7, and electrical ball valve 7 controls
Water inlet pipe closure, open, and then Automatic water tank 8 is cut off the water or moisturizing, ensure that the water in Automatic water tank 8 supplies high-pressure hydraulic pump enough
5.Automatic water tank 8 can automatically control in the range of water level 50cm is set, when water level reaches setting peak level, electric ball
The valve that valve 7 automatically controls water inlet pipe is closed, and stops water inlet；When water level decreasing is to 25cm, the valve of water inlet pipe reopens,
Water is supplemented into Automatic water tank 8；When water level decreasing is to below 10cm, the output contact signalizing activity of water level controller 6, dress is closed
Put to protect high-pressure hydraulic pump 5, level measuring error 1cm, reduce the volume of Automatic water tank 8, save space.Water body stream
Amount determines according to coal product water content requirement and actual atomizing de-dusting efficiency, can be adjusted in the range of 0~300L/min, equipment
Water route can be closed during maintenance.
Negative pressure water filter 9 is to promote water by filter screen with pure spray using vacuum force caused by high-pressure hydraulic pump 5
The water quality of fog, screen pack are usually the two-stage stainless steel gold of the two-stage stainless steel wire mesh of 80 mesh and 50 mesh, 80 mesh and 50 mesh
It is smaller to belong to the loss of net filtration water body resistance, and the probability that nozzle blocks by water foreign can be greatly lowered, reduces maintenance
Cost.When high-pressure hydraulic pump 5 draws water, first pass through negative pressure water filter 9 before water flows into high-pressure hydraulic pump 5 and filtered, with
Ensure water quality, prevent that debris flows into high-pressure hydraulic pump 5, last blocking anticyclone jet rose 14 in water.
High-pressure hydraulic pump 5 smokes the water of Automatic water tank 8, and high pressure jet rose is delivered to after negative pressure water filter 9
14, water is pressurizeed in the process, pressure is higher when the water is entered high pressure jet rose 14.The operating pressure of high-pressure hydraulic pump 5
It is defined as 20MPa, nominal value flow is 250L/min, and rated pressure should reach more than 20MPa, with 5kW drive motors, simultaneously
It is equipped with over-pressure safety device.The rated pressure of high-pressure hydraulic pump 5 reaches more than 20MPa, not only prevents the blocking of nozzle, significantly increases
The pressure of water body is added, has improved water body jet velocity, extended the length of spraying mist torch again, expand mist torch to coal cutting roller
The closing space in dust region.
Regulating valve 10 and threeway 11 are provided between high-pressure hydraulic pump 5 and high pressure jet rose 14, regulating valve 10 is located at water under high pressure
Between pump 5 and threeway 11.Regulating valve 10 controls the water flow of high-pressure hydraulic pump 5, is generally mounted to start-stop on coal-winning machine 15 and senses
It is easy to operate away from operating personnel 1m or so near device 2, open during 10 normal work of regulating valve, only when safeguarding device for reducing dust
Close.Threeway 11 is the part flow arrangement for changing water flow direction, and the two of which opening of threeway 11 is connected to two
High pressure jet rose 14, two high pressure jet roses 14 on the forward and backward roller 17 of coal-winning machine 15, can make spraying respectively
Scope is bigger.
High-pressure hydraulic pump 5 is connected to other elements by braided steel wire rubber tube 12, and its water inlet pipe selects the four of latus rectum φ 32
Layer braided steel wire rubber tube, high-pressure hydraulic pump outlet pipe select latus rectum φ 25 four layers of braided steel wire rubber tube, and threeway is more to high pressure
Water service pipe is from latus rectum φ 20 compound steel silk braiding rubber tube, the placement coal-winning machine 15 of braided steel wire rubber tube 12 between hole nozzle
In cable trough.
Such as Fig. 2 and Fig. 3, high pressure jet rose 14 realizes depositing dust using jet current principle jet atomization water body, is respectively arranged on and cuts
On the forward and backward roller 17 of coal machine 15.The inside of high pressure jet rose 14 is provided with fluid hybrid chamber 18, and water pressurizes laggard through high-pressure hydraulic pump 5
Enter mixing accumulation in fluid hybrid chamber 18, jet mixing of completion is broken to form drop, and the opens outward of fluid hybrid chamber 18 is provided with
A plurality of exhalant canal 19, the end of exhalant canal 19 are provided with spray orifice 20, because exterior space pressure is relatively low, penetrated by spray orifice 20
The drop gone out is completed secondary explosion and crushed, and forms particle diameter and reaches 1-5 μm of droplet, these trickle droplets are 1- for dust space particle diameter
10 μm of respirable dust has preferably collision, arresting efficiency.High pressure jet rose 14 is towards roller 17, after crushing twice
Droplet spray 3m distance after formed a diameter be about φ 3m hollow cone mist torch, hollow cone mist torch covering rolling
Cylinder 17, so as to caused dust during the pick coal cutting of closed cylinder 17, realize the purpose of depositing dust.
The latus rectum of fluid hybrid chamber 18 inside high pressure jet rose 14 is φ 50mm, and exhalant canal 19 is included positioned at centre
One exhalant canal 19 and uniform from six obliquely outward exhalant canals 19 of fluid hybrid chamber 18, six exhalant canals 19
It is distributed in around fluid hybrid chamber 18, the end of every exhalant canal 19 is designed with spray orifice 20, therefore a porous spray of high pressure
Mouth 14 has seven latus rectum φ 1.2mm spray orifice 20, and seven spray orifices 20 are in parallel to form a three-dimensional spray orifice matrix, in water under high pressure
Under driving, diameter 3m hollow cone mist torch can be formed after injection 3m distances, dust caused by roller 17 is played preferably
Closing, depositing dust effect.
High pressure jet rose 14 is arranged at the motor side cover of forward and backward roller rocking arm 16, is fixed with side cover bolt steel plate 13.
Fixed high pressure jet rose 14 is that the bolt that thickness is 30mm installs steel plate 13, and side cover bolt steel plate 13 is arranged on by bolt
The forward and backward motor side tops of roller rocking arm 16 of cutting coal machine.
Mine shearer coal cutting roller dust is carried out using the external automatic spray dust removal device of above-mentioned coal-winning machine high pressure
The method of processing, comprises the following steps：
Step 1：Power-on switch 1, control coal-winning machine 15 are opened, and on-off transducer 2 detects what coal-winning machine 15 started
Current signal, and signal is fed back into master controller 3；
Step 2：Master controller 3 sends current signal, electromagnetic trigger valve 4 to electromagnetic trigger valve 4, water level controller 6 simultaneously
When receiving the current signal that master controller 3 is sent, start high-pressure hydraulic pump 5；Meanwhile water level controller 6 receives master controller 3
During the current signal sent, start the height of water level in monitoring Automatic water tank 8, when the water level in Automatic water tank 8 is higher than setting water
When the upper limit of position or the lower limit less than setting water level, water level controller 6 sends the signal turned off or on to electrical ball valve 7, with
Stop or start to supply water, ensure that the water capacity in Automatic water tank 8 is no less than 2.0m3, high-pressure hydraulic pump 5 is supplied enough；
Step 3：Water in Automatic water tank 8 enters negative pressure water filter 9 under the twitch effect of high-pressure hydraulic pump 5, passes through
The filtering of the stainless steel two-stage wire netting of 80 mesh and 50 mesh, then entered by latus rectum φ 32mm four layers of pipe of braided steel wire rubber 12
High-pressure hydraulic pump 5；
Step 4：In the presence of high-pressure hydraulic pump 5, water is entered by latus rectum φ 25mm four layers of pipe of braided steel wire rubber 12
Threeway 11 shunts, then respectively enters the forward and backward roller 17 of coal-winning machine 15 by latus rectum φ 20mm compound steel silk braiding rubber tube 12
External high pressure jet rose 14；
Step 5：Water body enters the stream of latus rectum φ 20mm in high pressure jet rose 14 under the pressurization of high-pressure hydraulic pump 5
Body hybrid chamber 18, water body pressure are completed a jet mixing and crushed, form drop, then pass through because quick increase is gathered in mixing
Seven latus rectum φ 1.2mm at the top of fluid hybrid chamber 18 exhalant canal 19 flows to spray orifice 20 and projected, due to exterior space pressure
Relatively low, the droplet particles of injection are completed secondary explosion and crushed, and form the less droplet of a large amount of particle diameters；High pressure jet rose 14
Towards roller 17, the droplet after crushing twice forms the hollow cone that a diameter is about φ 3m after 3m distances are sprayed
Mist torch, hollow cone mist torch covering roller 17, so as to caused dust during the pick coal cutting of closed cylinder 17.
The external high pressure automatic spray dust removal device of coal-winning machine of the present invention is not required to human intervention upon actuation, on-off transducer 2,
Water level controller 6 can realize coal-winning machine 15 and external high-pressure spraying system for dust suppression coordination linkage, be advantageous to improve coal-winning machine 15
Automatization level.
The present invention reaches more than 98%, 1-10 μm of respirable dust dust reduction rate to full dirt dust reduction rate and reaches more than 95%, in fact
Effective improvement of dust is now produced to mine shearer coal cutting roller.
The automatically controlled interaction relation for keeping relatively independent between each device unit of the present apparatus and connecting each other；High pressure is porous
Nozzle 14 possesses the solid space structure of nozzle group, and integrated morphology is simple, is easily installed and fault rate is low, easy to maintenance, is adapted to
Various scale mine shearer coal cutting rollers produce treating flour dust, have higher promotional value.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferred embodiment to this hair
It is bright to be described in detail, it will be appreciated by those skilled in the art that technical scheme can be modified or waited
With replacing, without departing from the objective and scope of the technical program, it all should cover in scope of the presently claimed invention.
Claims (8)
- A kind of 1. external high pressure automatic spray dust removal device of coal-winning machine, it is characterised in that including：Power switch, the power supply are opened Connection is connected to on-off transducer, and the on-off transducer detects opening, stopping for the coal-winning machine, and the on-off transducer is connected to master Controller, the side of the master controller are connected with water charging system, and opposite side is connected to electromagnetic trigger valve, the electromagnetic trigger valve High-pressure hydraulic pump is connected to, the startup of the high-pressure hydraulic pump, the benefit are controlled by receiving signal that the master controller sends Water system is connected to the high-pressure hydraulic pump, and to feed water to the high-pressure hydraulic pump, it is porous that the high-pressure hydraulic pump is connected to high pressure Nozzle, the high pressure jet rose are installed on the coal-winning machine, and dust caused by the coal-winning machine coal mining process is sprayed Mist depositing dust, the high pressure jet rose inside are provided with fluid hybrid chamber, and water enters the fluid after high-pressure hydraulic pump pressurizes and mixed Intracavitary mixing accumulation, completes that jet mixing is broken to form drop, the fluid hybrid chamber is obliquely outward have it is a plurality of go out Aquaporin, the exhalant canal include positioned at a middle exhalant canal and are tilted towards extension from the fluid hybrid chamber Six exhalant canals stretched, six exhalant canals are uniformly distributed in around the fluid hybrid chamber, the water outlet The end of passage is provided with spray orifice, and the drop projected by the spray orifice is completed secondary explosion and crushed, and droplet is formed, by multiple sprays The droplet that hole sprays forms hollow cone mist torch, and the hollow cone mist torch covers the roller of the coal-winning machine.
- 2. the external high pressure automatic spray dust removal device of coal-winning machine according to claim 1, it is characterised in that：The power supply is opened Close and the on-off transducer is arranged on the coal-winning machine, the master controller, the electromagnetic trigger valve, the water under high pressure Pump and the water charging system are mounted on equipment train.
- 3. the external high pressure automatic spray dust removal device of coal-winning machine according to claim 1, it is characterised in that：The power supply is opened Pass is a kind of circuit arrangement, while controls the start-stop of the coal-winning machine and the master controller.
- 4. the external high pressure automatic spray dust removal device of coal-winning machine according to claim 1, it is characterised in that：The moisturizing system System includes water level controller and is connected to the master controller, and the side of the water level controller is connected to Automatic water tank, opposite side Electrical ball valve is connected to, the electrical ball valve controls water inlet pipe start-stop, and the electrical ball valve is connected to described automatic by pipeline Water tank, the Automatic water tank are connected to negative pressure water filter, and the negative pressure water filter is connected to the high-pressure hydraulic pump.
- 5. the external high pressure automatic spray dust removal device of coal-winning machine according to claim 1, it is characterised in that：The water under high pressure Pump is connected to threeway by braided steel wire rubber tube, and it is more that the two of which opening of the threeway is connected to two high pressures Hole nozzle, two high pressure jet roses are respectively on the forward and backward roller of coal-winning machine.
- 6. the external high pressure automatic spray dust removal device of coal-winning machine according to claim 1, it is characterised in that：The main control Device is mining ZP-127Z automatic dust suppression device by water spray main frame.
- 7. a kind of method of external high pressure automatic spray dust removal device of coal-winning machine using any one of claim 1 to 6, It is characterised in that it includes：Step 1：The power switch is opened, controls the coal-winning machine to open, the on-off transducer detects the coal-winning machine The current signal of startup, and signal is fed back into the master controller；Step 2：For the master controller simultaneously to the water charging system, the electromagnetic trigger valve sends current signal, the electromagnetism When trigger valve receives signal, start the high-pressure hydraulic pump, and water is supplied to the high-pressure hydraulic pump by the water charging system；Step 3：It is lower used in pressurization of the water in high-pressure hydraulic pump to enter the high pressure jet rose, in the high pressure jet rose First mixing aggregation, complete a jet mixing and crush, then it is broken by the secondary explosion of spray orifice injection completion, droplet is formed, by The droplet that multiple spray orifices spray forms hollow cone mist torch, and the hollow cone mist torch covers the rolling of the coal-winning machine Cylinder, to carry out atomizing de-dusting to adopting caused dust during the coal machine is mined.
- 8. according to the method for claim 7, it is characterised in that：The water charging system include water level controller, electrical ball valve, Automatic water tank and negative pressure water filter, when the water level controller receives the current signal that the master controller is sent, are opened The height of water level in the dynamic monitoring Automatic water tank, when the upper limit of the water level in the Automatic water tank higher than setting water level or it is less than When setting the lower limit of water level, the water level controller sends the signal turned off or on to the electrical ball valve, to stop or open It is dynamic to supply water, ensure that the water in the Automatic water tank supplies the high-pressure hydraulic pump enough, water enters before the high-pressure hydraulic pump through institute State the filtering of negative pressure water filter.
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| CN201802404U (en) * | 2010-08-31 | 2011-04-20 | 郑州市光力科技发展有限公司 | Automatic atomizing and dust-reducing control system of development machine |
| CN202882924U (en) * | 2012-10-25 | 2013-04-17 | 山东鲁安自动化设备有限公司 | High-pressure secondary automatic spraying aspirating device of fully-mechanized excavating machine |
| CN202882925U (en) * | 2012-10-29 | 2013-04-17 | 山东鲁安自动化设备有限公司 | High-pressure external spraying aspirating device of automatic fully-mechanized excavating machine |
| CN202991046U (en) * | 2012-12-29 | 2013-06-12 | 兖州中煤华安机电设备有限公司 | Mine automatic watering and dust removal device |
| CN104858077A (en) * | 2015-06-10 | 2015-08-26 | 西安煤矿机械有限公司 | Atomizing nozzle for coal mine cutting equipment |
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2015
- 2015-08-31 CN CN201510543104.1A patent/CN105134210B/en active Active
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