CN105784399A - Fully-mechanized mining working face spray dust reduction simulation experiment system - Google Patents
Fully-mechanized mining working face spray dust reduction simulation experiment system Download PDFInfo
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- CN105784399A CN105784399A CN201610163379.7A CN201610163379A CN105784399A CN 105784399 A CN105784399 A CN 105784399A CN 201610163379 A CN201610163379 A CN 201610163379A CN 105784399 A CN105784399 A CN 105784399A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a fully-mechanized mining working face spray dust reduction simulation experiment system, which comprises a model tunnel, a simulation machine body, a high-pressure water pump, a water storage tank, a control device, an axial flow fan, a dust generator, a nozzle, an instrument support, a wind pipe, a water pipe, a water flowmeter, a water pressure gauge and a gas flowmeter. One end of the model tunnel is a tunneling end and is provided with the dust generator; the simulation machine body is arranged in the model tunnel and is close to the tunneling end; the nozzle is arranged on the model tunnel and is close to the tunneling end; the nozzle, the water flowmeter, a water meter, the high-pressure water pump and the water storage tank are connected in sequence through the water pipe; the model tunnel is internally provided with the wind pipe; the air inlet end of the wind pipe is connected with the axial flow fan; the wind pipe is internally provided with the gas flowmeter; a wind outlet of the wind pipe is close to the tunneling end; a control device is connected with the high-pressure water pump and the axial flow fan through data lines; and the instrument support is provided with a dust tester. The system can simulate ventilation and spray dust reduction of an underground coal mine fully-mechanized mining working face, and provides help for the spray dust reduction in a production field.
Description
Technical field
The invention belongs to mine ventilation field, particularly to a kind of fully mechanized workface atomizing de-dusting experimental system for simulating.
Background technology
Coal mine working environment and production safety are had higher requirement by the strategy of sustainable development.At present, along with improving constantly of coal mine machinery degree, high-power development machine widely used, the dust-producing amount of fully mechanized workface increases severely, and working environment worsens, especially the dust concentration usually severe overweight at development machine driver place.
At present, China's fully mechanized workface generally adopts atomizing de-dusting technology to reduce fully mechanized workface dust concentration.In practice, owing to lacking the guidance of correlation theory, spray method is adopted often not reach intended dust-laying effect.Production scene even there will be and consumes substantial amounts of water, and the concentration of dust is still significantly high, also results in a large amount of hydrops at some fixed-site, on the contrary production is adversely affected.Surveying factually, the fully mechanized workface atomizing de-dusting efficiency of China's coal-mine is generally relatively low, and full dirt dustfall efficiency is generally below 50%, to the dustfall efficiency of respirable dust even below 30%.Fully mechanized workface atomizing de-dusting effect is closely related with spraying and ventilation parameter, and the parameter affecting face dust concentration distribution and atomizing de-dusting effect includes atomisation pressure, air supply velocity, spraying arrangement etc..In order to reasonably determine spray parameters in practice, it is necessary to further fully mechanized workface atomizing de-dusting is conducted a research.Underground coal mine fully mechanized workface production scene, owing to being subject to the restriction of production and geological conditions, is difficult to carry out various ventilation and the fully mechanized workface dust concentration distribution under spray condition and the actual measurement of atomizing de-dusting efficiency.
Summary of the invention
In order to solve the above-mentioned technical problem that prior art exists, the invention provides a kind of fully mechanized workface atomizing de-dusting experimental system for simulating, the present invention can simulate underground coal mine fully mechanized workface and ventilate and atomizing de-dusting, and difference air-supply can be surveyed with the fully mechanized workface dust concentration distribution under spray condition and atomizing de-dusting effect, provide certain guidance for production scene.
In order to solve above-mentioned technical problem, the present invention adopts following technical proposals: include model tunnel, simulation fuselage, high-pressure hydraulic pump, storage tank, control device, axial flow blower, powder producer, nozzle, instrument support, airduct, water pipe, water ga(u)ge, water pressure gauge, bypass valve and gas flowmeter；The one end in described model tunnel is driving termination, and it is provided with powder producer, simulation fuselage is located in model tunnel and near driving termination, and nozzle is installed on analog machine near driving termination, nozzle, water ga(u)ge, water meter, high-pressure hydraulic pump, storage tank is sequentially connected with water pipe；Being provided with airduct in model tunnel, the inlet end of airduct is connected with axial flow blower, is provided with gas flowmeter in airduct, and the air outlet of airduct is near driving termination；Control device to be connected with high-pressure hydraulic pump and axial flow blower respectively by data wire；
In above-mentioned fully mechanized workface atomizing de-dusting experimental system for simulating, described model tunnel bottom side is provided with sump, and the angle of base plate and horizontal plane is 5-10 degree.
In above-mentioned fully mechanized workface atomizing de-dusting experimental system for simulating, being provided with multiple instrument support in described model tunnel along tunnel, instrument support is provided with dust determination instrument.
Owing to adopting technique scheme, the invention has the beneficial effects as follows: by setting up fully mechanized workface atomizing de-dusting experimental system for simulating, when not affecting production, to various ventilations with fully mechanized workface dust concentration distribution under spray condition and the measurement of atomizing de-dusting efficiency, measurement result can be rationally determine that spray parameters improves in practice to instruct.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
As it is shown in figure 1, the present invention includes model tunnel 1, simulation fuselage 2, high-pressure hydraulic pump 3, storage tank 4, controls device 5, axial flow blower 6, powder producer 7, nozzle 8, instrument support 9, sump 10, airduct 11, water pipe 12, water ga(u)ge 13, water pressure gauge 14, bypass valve 15 and gas flowmeter 16.The bottom side in described model tunnel 1 is provided with sump 10, and the inclination angle between base plate and horizontal plane is 5-10 degree, it is ensured that draining is smooth and easy.Described powder producer 7 is installed on the driving termination 17 in model tunnel 1, is used for simulating cutting head of roadheader cut and produces dirt, and the powder amount of powder producer 7 can according to regulating working conditions.Described nozzle 8 be installed on simulation fuselage 2 by driving side, termination 17, simulation fuselage 2 is arranged in from tunneling termination 17 certain distance.Described high-pressure hydraulic pump 3 is connected with controlling device 5 with axial flow blower 6, and by controlling device 5, the pressure of supply water of high-pressure hydraulic pump 3 and the air quantity of axial flow blower 6 is carried out variable frequency adjustment.
The operation principle of the present invention is: nozzle (8A, 8B and 8C) is first respectively arranged in analog machine, and is respectively arranged on instrument support 9A, 9B, 9C, 9D, 9E, 9F and 9G by dust determination instrument before starting by experiment.When experiment starts, first passing through control device 5, start and regulate axial flow blower 6, making the air quantity of axial flow blower 6 reach predetermined value, the air output of axial flow blower 6 can pass through to be installed on the gas flowmeter 16 of airduct 11 and measure.The air-supply of axial flow blower 6 flows through airduct 11 and is delivered to the driving termination 17 in model tunnel 1.After unstable airflow, start high-pressure hydraulic pump 3 again through controlling device 5, and regulated to predetermined atomisation pressure.The pressure of supply water of high-pressure hydraulic pump 3 is read by water pressure gauge 14, and water supply flow can be obtained by water ga(u)ge 13.After high-pressure hydraulic pump 3 is stable, observe nozzle atomization effect, it is determined that after errorless, powder producer 7 will load coal dust to be measured, start powder producer 7, and regulate a dirt speed.After 7 dirt of powder producer are stable, open the dust determination instrument on instrument support 9A, 9B, 9C, 9D, 9E, 9F and 9G so that it is enter mensuration state.After experiment terminates, face dust concentration distribution and atomizing de-dusting efficiency under this ventilation and spray condition can be analyzed by the measurement data of dust determination instrument.
Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; under the premise without departing from present configuration; some deformation and improvement can also be made; these also should be considered as protection scope of the present invention, and these are all without affecting effect of the invention process and practical applicability.
Claims (4)
1. a fully mechanized workface atomizing de-dusting experimental system for simulating, including model tunnel, simulation fuselage, high-pressure hydraulic pump, storage tank, control device, axial flow blower, powder producer, nozzle, instrument support, airduct, water pipe, water ga(u)ge, water pressure gauge and gas flowmeter；The one end in described model tunnel is driving termination, and it is provided with powder producer, simulation fuselage is located in model tunnel and near driving termination, and nozzle is installed on analog machine near driving termination, nozzle, water ga(u)ge, water meter, high-pressure hydraulic pump, storage tank is sequentially connected with water pipe；Being provided with airduct in model tunnel, the inlet end of airduct is connected with axial flow blower, is provided with gas flowmeter in airduct, and the air outlet of airduct is near driving termination；Controlling device to be connected with high-pressure hydraulic pump and axial flow blower respectively by data wire, instrument support is provided with dust determination instrument.
2. fully mechanized workface atomizing de-dusting experimental system for simulating according to claim 1, it is characterised in that: described model tunnel bottom side is provided with sump, and the angle of base plate and horizontal plane is 5-10 degree.
3. fully mechanized workface atomizing de-dusting experimental system for simulating according to claim 1, it is characterised in that: multiple instrument support it is provided with in described model tunnel along tunnel.
4. fully mechanized workface atomizing de-dusting experimental system for simulating according to claim 1, it is characterised in that: also including a bypass valve, bypass valve is installed between water tank and water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610163379.7A CN105784399A (en) | 2016-03-22 | 2016-03-22 | Fully-mechanized mining working face spray dust reduction simulation experiment system |
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| CN201610163379.7A CN105784399A (en) | 2016-03-22 | 2016-03-22 | Fully-mechanized mining working face spray dust reduction simulation experiment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973773A (en) * | 2016-07-22 | 2016-09-28 | 山东科技大学 | Experimental device and method for coal-mine full-mechanized caving face dust producing rule determination |
| CN112595536A (en) * | 2020-12-15 | 2021-04-02 | 南京信息工程大学 | Experimental system for simulating cutting dust production of fully-mechanized excavation face heading machine |
| CN114297794A (en) * | 2021-12-27 | 2022-04-08 | 太原理工大学 | Full-space intelligent comprehensive dust removal method for fully-mechanized excavation working face |
Citations (3)
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| CN101845961A (en) * | 2010-05-28 | 2010-09-29 | 山东科技大学 | Bracket spraying dust reduction emulation simulation device for coal mine working surface |
| CN104390898A (en) * | 2014-11-12 | 2015-03-04 | 山东科技大学 | Simulation experiment device for spraying and dust-settling law under airflow field and experimental method of simulation experiment device |
| CN204202895U (en) * | 2014-11-10 | 2015-03-11 | 山东科技大学 | Mine working face Simulation Experimental Platform |
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2016
- 2016-03-22 CN CN201610163379.7A patent/CN105784399A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845961A (en) * | 2010-05-28 | 2010-09-29 | 山东科技大学 | Bracket spraying dust reduction emulation simulation device for coal mine working surface |
| CN204202895U (en) * | 2014-11-10 | 2015-03-11 | 山东科技大学 | Mine working face Simulation Experimental Platform |
| CN104390898A (en) * | 2014-11-12 | 2015-03-04 | 山东科技大学 | Simulation experiment device for spraying and dust-settling law under airflow field and experimental method of simulation experiment device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973773A (en) * | 2016-07-22 | 2016-09-28 | 山东科技大学 | Experimental device and method for coal-mine full-mechanized caving face dust producing rule determination |
| CN105973773B (en) * | 2016-07-22 | 2018-10-16 | 山东科技大学 | The experimental provision and experimental method measured for coal mine fully mechanized coal face dust rule |
| CN112595536A (en) * | 2020-12-15 | 2021-04-02 | 南京信息工程大学 | Experimental system for simulating cutting dust production of fully-mechanized excavation face heading machine |
| CN112595536B (en) * | 2020-12-15 | 2022-12-06 | 南京信息工程大学 | Experimental system for simulating cutting dust production of fully-mechanized excavation face heading machine |
| CN114297794A (en) * | 2021-12-27 | 2022-04-08 | 太原理工大学 | Full-space intelligent comprehensive dust removal method for fully-mechanized excavation working face |
| CN114297794B (en) * | 2021-12-27 | 2024-03-29 | 太原理工大学 | Comprehensive intelligent comprehensive dust removal method for full space of fully-mechanized coal mining face |
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Application publication date: 20160720 |