CN212535743U - Coal mine underground coal dust and gas cooperative prevention and control agent spraying and blending device for spraying reagent - Google Patents
Coal mine underground coal dust and gas cooperative prevention and control agent spraying and blending device for spraying reagent Download PDFInfo
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- CN212535743U CN212535743U CN202021951800.9U CN202021951800U CN212535743U CN 212535743 U CN212535743 U CN 212535743U CN 202021951800 U CN202021951800 U CN 202021951800U CN 212535743 U CN212535743 U CN 212535743U
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Abstract
The utility model relates to a colliery underworkings' dust fall and gas prevention and cure field especially relate to a be used for colliery underworkings coal dust and gas to prevent and control in coordination to spray reagent dispensing device. The reagent container is connected with an inlet of the liquid injection pump through the high-pressure hose, an outlet of the liquid injection pump, the valve, the first flowmeter and an inlet interface of the three-way joint are connected through the high-pressure hose in sequence, and the other inlet of the three-way joint is connected with the second flowmeter. The problem of discontinuous liquid supply in the solution preparation process in the prior art is solved, the surfactant solution does not need to be manually prepared, and the workload is reduced; continuous supply of the surfactant solution is realized; can realize instant use and convenient disassembly.
Description
The technical field is as follows:
the utility model relates to a colliery underworkings' dust fall and gas prevention and cure field especially relates to a be used for colliery underworkings coal dust and gas to prevent and control in coordination to spray reagent dispensing device.
Background art:
a large amount of coal dust is generated in the process of tunneling or stoping of a coal mine; according to statistics, the coal road can generate 818.3mg/m3 dust every minute in the tunneling process, and the underground working environment is seriously polluted. Researches show that the long-term working environment with high dust concentration can cause irreversible and fatal lung diseases, which are mainly manifested as pneumoconiosis (CWP), chronic obstructive pulmonary disease, tuberculosis, chronic bronchitis, emphysema and the like at present; according to the occupational disease data published by the international occupational health association 2019, the diagnosed cases of the pneumoconiosis account for 90% of all occupational cases, and the cases grow year by year at the speed of 2.0-2.5 ten thousand cases per year. Therefore, the method is of great significance for developing a coal dust prevention test under the coal mine and controlling the working flour dust concentration, improving the working surface environment and ensuring the physical health of workers and people.
In the process of coal mining, due to the influences of mining disturbance and pressure relief, gas is usually quickly desorbed from coal breakage to a coal face, so that the gas at the coal face and an upper corner exceeds the limit, and the safety production of the coal mine is influenced. Therefore, the desorption inhibition test of the underground gas of the coal mine is developed, the gas desorption rate is reduced, and the method has important significance for realizing the safe production of the coal mine.
The common method is that a surfactant or a wetting agent is mixed into water according to a certain proportion, a coal bed is wetted by a spraying or atomizing mode, the wetting agent is a substance surfactant which can enable solid materials to be more easily wetted by water by reducing the surface energy of the wetting agent, and the wetting agent consists of a hydrophilic group and a lipophilic group. When in contact with a solid surface, the lipophilic group adheres to the solid surface and the hydrophilic group extends outward into the liquid, causing the liquid to form a continuous phase on the solid surface, which is the basic principle of wetting.
The prior addition mode of the surfactant or other liquid is mainly to prepare a surfactant solution with a certain concentration in a solution cylinder, and the surfactant solution is directly used for spraying or water injection after being uniformly stirred and mixed.
The utility model has the following contents:
in order to overcome the above problem, an object of the utility model is to provide a be used for colliery underground coal dust and gas to prevent in coordination to spray reagent dispensing device to solve the not enough of prior art.
The utility model discloses by following technical scheme implement: the utility model provides a be used for colliery coal dust and gas to prevent and spray reagent dispensing device in coordination, includes reagent container 1, infusion pump 2, valve 3, first flowmeter 4, second flowmeter 6, high-pressure hose and three way connection 5, reagent container 1 links to each other with infusion pump 2 entry through high-pressure hose, and infusion pump 2 export, valve 3, first flowmeter 4, three way connection 5 entry interfaces loop through high-pressure hose and link to each other, and second flowmeter 6 is connected to another entrance of three way connection 5.
The reagent container is filled with a surfactant, the surfactant is pumped by the liquid injection pump, the flow of the surfactant is controlled by the valve, the flow of the surfactant is detected by the first flowmeter, the flow of the injected water is detected by the second flowmeter, and the valve is adjusted according to two flow values to enable the flow ratio of the surfactant and the injected water to reach the ideal ratio, so that the surfactant solution with the optimal ratio is obtained.
Preferably, the valve 3 is an electromagnetic valve, the first flowmeter 4 and the second flowmeter 6 are electronic flowmeters, the electromagnetic valve and the electronic flowmeters are electrically connected with a control system 7, the control system 7 comprises a controller, an information input unit and an information output unit, the information input unit comprises a manual input end and a display screen, and the manual input end and the display screen are both electrically connected with the controller.
Therefore, the flow of the surfactant is automatically controlled, the solvent-solute ratio is preset on the controller, the flow of the solvent-solute is fed back to the controller in real time by the electronic flowmeter, and the controller controls the opening and closing of the electromagnetic valve to control the flow of the surfactant to reach the preset solvent-solute ratio.
Preferably, a liquid level sensor is arranged in the reagent container and electrically connected with a controller, and the controller is connected with a buzzer. When the reagent in the reagent container is about to be consumed up, the alarm effect is achieved, and liquid break is prevented.
Preferably, the liquid injection pump is a pneumatic liquid injection pump special for a coal mine. The colliery underground all has pressure gas pipeline generally, and the infusion pump power uses the air pump to have the advantage in two aspects: firstly, it is convenient to take and use, secondly, it does not produce electric spark, it is safe.
Preferably, the upper end of the special pneumatic liquid injection pump is connected with a pneumatic pressure boosting device. The pneumatic liquid injection pump is standby under the condition of insufficient power.
Preferably, each end connector of the high-pressure hose is a universal quick connector, and the three-way connector is a universal quick connector. Can be directly connected to the joint of the underground water supply pipeline, and is convenient to install and disassemble.
Preferably, the valve is a one-way valve. Prevent water from flowing back to the reagent container to pollute the reagent when the water supply pressure is too high.
Preferably, the reagent container is provided with a liquid level display glass tube. Can read the liquid level in the container in time and replenish the reagent in time.
Preferably, the reagent container, the infusion pump and other movable parts are integrated on a flat-bed trolley, and 4 wheels are mounted at the bottom of the trolley, wherein 2 wheels are universal wheels. The movement is convenient, and the response is rapid.
Preferably, one side of the universal wheel is movably connected with a foot brake. And the foot brake is stepped down in a static state, so that safety accidents caused by slope slipping are prevented.
The utility model has the advantages that:
(1) and a surfactant solution does not need to be manually prepared, so that the workload is reduced. The concentrated solution of the surfactant is directly injected into the water pipe by a pressure pump, the surfactant solutions with different proportions can be realized by controlling the injection flow of the concentrated solution, and the surfactant solution is not artificially prepared and stirred.
(2) Continuous supply of the surfactant solution is achieved. The surfactant concentrated solution is pressurized and injected into the water pipe by the high-pressure air pump, so that the surfactant solution can be quantitatively and continuously supplied.
(3) The underground standard three-way quick connector is adopted, so that the quick connector can be used immediately after being connected and is convenient to disassemble.
(4) The three-way connector and the concentrated solution pipe are provided with a flow monitoring system which can monitor the flow and the flow velocity of water at any time; the flow rate of the concentrated solution can be timely adjusted through the control system to ensure the concentration of the surfactant solution.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a spraying agent blending device for the synergistic control of coal dust and gas in a coal mine.
Fig. 2 is a schematic diagram of a structure with a control system.
Fig. 3 is a schematic layout of the overall structure.
The numerical designations in the figures illustrate: 1-reagent container, 2-liquid injection pump, 3-valve, 4-first flowmeter, 5-three-way joint, 6-second flowmeter, 7-control system, 8-gas pipe and 9-liquid level display glass pipe.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in figure 1, the spraying reagent blending device for the coal dust and gas collaborative prevention and control of the underground coal mine comprises a reagent container 1, a liquid injection pump 2, a valve 3, a first flowmeter 4, a second flowmeter 6, a high-pressure hose and a three-way joint 5, wherein the reagent container 1 is connected with an inlet of the liquid injection pump 2 through the high-pressure hose, an outlet of the liquid injection pump 2, the valve 3, the first flowmeter 4 and an inlet interface of the three-way joint 5 are sequentially connected through the high-pressure hose, and the other inlet of the three-way joint 5 is connected with the second flowmeter 6. The liquid injection pump is a pneumatic liquid injection pump special for a coal mine. And each end joint of the high-pressure hose is a universal quick joint, and the three-way joint is a universal quick joint. The valve is a one-way valve.
The specific use steps of this example are as follows:
(1) filling a reagent container with a surfactant;
(2) the hose is communicated with the surfactant and the pneumatic liquid injection pump;
(3) the underground high-pressure air pipe is connected with a pneumatic liquid injection pump;
(4) the three-way water outlet is connected with a solution supply pipe;
(5) the underground water supply pipe is connected with a second flow meter;
(6) and reading the values of the first flowmeter and the second flowmeter, and adjusting the size of the valve until the reading ratio of the two flowmeters reaches the optimal solution ratio.
(7) And the values of the first flowmeter and the second flowmeter and the residual amount of the surfactant are observed at any time during the working process, and the adjustment and the replenishment are carried out in time.
Example two:
as shown in figures 2 and 3, the spraying reagent blending device for the coal dust and gas collaborative prevention and control of the underground coal mine comprises a reagent container 1, a liquid injection pump 2, a valve 3, a first flowmeter 4, a second flowmeter 6, a high-pressure hose and a three-way joint 5, wherein the reagent container 1 is connected with an inlet of the liquid injection pump 2 through the high-pressure hose, an outlet of the liquid injection pump 2, the valve 3, the first flowmeter 4 and an inlet interface of the three-way joint 5 are sequentially connected through the high-pressure hose, and the other inlet of the three-way joint 5 is connected with the second flowmeter 6.
The valve 3 is an electromagnetic valve, the first flowmeter 4 and the second flowmeter 6 are electronic flowmeters, the electromagnetic valve and the electronic flowmeters are electrically connected with the control system 7, the control system 7 comprises a controller, an information input unit and an information output unit, the information input unit comprises a manual input end and a display screen, and the manual input end and the display screen are both electrically connected with the controller. The liquid injection pump is a pneumatic liquid injection pump special for a coal mine. The upper end of the special pneumatic liquid injection pump is connected with an air pressure supercharging device. And each end joint of the high-pressure hose is a universal quick joint, and the three-way joint is a universal quick joint. The valve is a one-way valve. Reagent container, infusion pump and other movable spare parts are integrated on a flat-bed handcart, and 4 wheels are installed to the bottom, and 2 of them are the universal wheel. One side of the universal wheel is movably connected with a foot brake.
The reagent container is internally provided with a liquid level sensor which is electrically connected with a controller, and the controller is connected with a buzzer.
The specific use steps of this example are as follows:
(1) filling a reagent container with a surfactant;
(2) the hose is communicated with the surfactant and the pneumatic liquid injection pump;
(3) the underground high-pressure air pipe is connected with a pneumatic liquid injection pump;
(4) the three-way water outlet is connected with a solution supply pipe;
(5) the underground water supply pipe is connected with a second flow meter;
(6) and inputting the solvent-solute ratio into the control system, collecting numerical values of the first flowmeter and the second flowmeter by the control system, and outputting the opening and closing size of the feedback control electromagnetic valve until the flow ratio reaches the input solvent-solute ratio to achieve dynamic balance.
(7) And adding the solvent in time when the buzzer sounds.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a be used for colliery underground coal dust and gas to prevent in coordination and spray reagent dispensing device which characterized in that: including reagent container, infusion pump, valve, first flowmeter, second flowmeter, high-pressure hose and three way connection, reagent container passes through high-pressure hose and links to each other with the infusion pump entry, and the infusion pump is exported, valve, first flowmeter, three way connection entry interface and is looped through high-pressure hose and links to each other, and the second flowmeter is connected to another entrance of three way connection, the infusion pump is the special pneumatic infusion pump in colliery.
2. The spraying reagent blending device for the synergistic control of coal dust and gas under a coal mine according to claim 1, characterized in that: the valve is an electromagnetic valve, the first flowmeter and the second flowmeter are electronic flowmeters, the electromagnetic valve and the electronic flowmeters are electrically connected with the control system, the control system comprises a controller, an information input unit and an information output unit, the information input unit comprises a manual input end and a display screen, and the manual input end and the display screen are electrically connected with the controller.
3. The spraying reagent blending device for the synergistic control of coal dust and gas under a coal mine according to claim 2, characterized in that: the reagent container is internally provided with a liquid level sensor which is electrically connected with a controller, and the controller is connected with a buzzer.
4. The spraying reagent blending device for the synergistic control of coal dust and gas under a coal mine according to claim 1, characterized in that: the upper end of the special pneumatic liquid injection pump is connected with an air pressure supercharging device.
5. The spraying reagent blending device for the synergistic control of coal dust and gas under a coal mine according to claim 1, characterized in that: and each end joint of the high-pressure hose is a universal quick joint, and the three-way joint is a universal quick joint.
6. The spraying reagent blending device for the synergistic control of coal dust and gas under a coal mine according to claim 1, characterized in that: the valve is a one-way valve.
7. The spraying reagent blending device for the synergistic control of coal dust and gas under a coal mine according to claim 1, characterized in that: the reagent container is provided with a liquid level display glass tube.
8. The spraying reagent blending device for the synergistic control of coal dust and gas under a coal mine according to any one of claims 1 to 7, characterized in that: reagent container, infusion pump and other movable spare parts are integrated on a flat-bed handcart, and 4 wheels are installed to the bottom, and 2 of them are the universal wheel.
9. The spraying reagent blending device for the synergistic control of coal dust and gas under a coal mine according to claim 8, characterized in that: one side of the universal wheel is movably connected with a foot brake.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021951800.9U CN212535743U (en) | 2020-09-04 | 2020-09-04 | Coal mine underground coal dust and gas cooperative prevention and control agent spraying and blending device for spraying reagent |
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| CN202021951800.9U CN212535743U (en) | 2020-09-04 | 2020-09-04 | Coal mine underground coal dust and gas cooperative prevention and control agent spraying and blending device for spraying reagent |
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| CN212535743U true CN212535743U (en) | 2021-02-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894653A (en) * | 2020-09-04 | 2020-11-06 | 西安科技大学 | Quantitative blending method and device for coal mine underground coal dust and gas cooperative prevention and control spraying reagent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894653A (en) * | 2020-09-04 | 2020-11-06 | 西安科技大学 | Quantitative blending method and device for coal mine underground coal dust and gas cooperative prevention and control spraying reagent |
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