CN114592915A - Throttling expansion type gas dynamic and static exchange detection and treatment device for underground coal mine - Google Patents
Throttling expansion type gas dynamic and static exchange detection and treatment device for underground coal mine Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention discloses a throttle expansion type gas dynamic and static exchange detection and treatment device for a coal mine underground, which comprises a positioning frame, a dynamic and static exchange type gas ventilation detection mechanism, a throttle expansion type environment treatment mechanism and a negative pressure recovery mechanism, wherein the dynamic and static exchange type gas ventilation detection mechanism, the throttle expansion type environment treatment mechanism and the negative pressure recovery mechanism are respectively and fixedly arranged on the side wall of the positioning frame. The invention belongs to the technical field of coal mine safety equipment, and particularly provides a throttle expansion type gas dynamic and static exchange detection and treatment device for a coal mine, wherein a reverse action principle is applied to the detection of a mine tunnel ventilation effect and gas accumulation, so that the human input and gas detection risks are obviously reduced, and the automation degree and the detection accuracy of equipment are improved; the method applies the intermediary principle and the throttling expansion effect to dust fall treatment and environment treatment of the mine tunnel, obviously reduces the probability of accidents caused by dust accumulation of the mine, and improves the working environment of the mine.
Description
Technical Field
The invention belongs to the technical field of coal mine safety equipment, and particularly relates to a throttle expansion type gas dynamic and static exchange detection and treatment device for an underground coal mine.
Background
In the process of coal mining, a certain amount of gas exists in a coal mine, the component of the gas is mainly methane, and when the gas in the coal mine reaches a certain concentration, the gas is easy to cause explosion, so that great potential safety hazards exist.
The detection technology in the existing coal mine gas processing process and after processing mainly comprises the steps of presetting fixed monitoring point detection and manual auxiliary mobile detection, wherein the detection range of the preset fixed monitoring point in a mine roadway has limitation, especially when a ventilation bad area is detected, gas is concentrated in the upper air, the detection of the monitoring point is easy to miss, the manual auxiliary mobile detection needs to depend on manual hand-holding or mobile detection equipment to carry out gas detection under a coal mine, and great influence is brought to physical and mental health of operators.
At present, equipment for detecting underground gas treatment of a coal mine is lacked, the gas ventilation treatment effect can be automatically judged on the premise of not needing manual operation of going into a well, dynamic and static exchange type gas detection of various areas with poor ventilation in a mine roadway is realized, meanwhile, the gas in each detection area can be cooled and purified, the well construction environment of a mine construction area is kept, the gas at a gas gathering position can be recycled, the gas is changed into benefit, and the harm of the gas and dust to the coal mine is obviously reduced.
Disclosure of Invention
Aiming at the situation and overcoming the defects of the prior art, the invention provides a throttle expansion type gas dynamic and static exchange detection and treatment device for a coal mine, which applies a reverse action principle and a principle of increasing asymmetry to the detection of the ventilation effect of a mine roadway and gas accumulation, the dynamic and static exchange type gas ventilation detection mechanism is arranged through the reverse thought, the human input and the detection risk are obviously reduced, meanwhile, the automation degree and the detection accuracy of the device are improved, the device applies the intermediary principle and the throttling expansion effect to the dust fall treatment and the environmental control of the mine tunnel, the gas and dust particles in the mine tunnel are subjected to cyclic adsorption and purification by adopting the throttling expansion type environment management mechanism, and the gas is cooled, so that the probability of accidents caused by dust accumulation in the mine tunnel is obviously reduced, and the operation environment in the mine tunnel is improved.
The technical scheme adopted by the invention is as follows: the scheme provides a throttle expansion type gas dynamic and static exchange detection and treatment device for underground coal mines, which comprises a positioning frame, a dynamic and static exchange type gas ventilation detection mechanism, a throttle expansion type environment treatment mechanism and a negative pressure recovery mechanism, wherein the dynamic and static exchange type gas ventilation detection mechanism and the throttle expansion type environment treatment mechanism are respectively and fixedly arranged on the side wall of the positioning frame, the throttle expansion type environment treatment mechanism is arranged above the dynamic and static exchange type gas ventilation detection mechanism, the negative pressure recovery mechanism is fixedly arranged on the side wall of the positioning frame, the dynamic and static exchange type gas ventilation detection mechanism applies a reverse action principle and an increased asymmetry principle to the detection of the ventilation effect and the gas accumulation of a mine roadway, the reverse idea of dynamic and static exchange is adopted, so that the gas to be detected at the position with poor ventilation can actively enter the dynamic and static exchange type gas ventilation detection mechanism, the effective detection of each corner and poor ventilation position in the mine roadway can be realized under the condition of no manual operation, the throttle expansion type environment management mechanism applies the intermediary principle and the throttle expansion effect to dust fall treatment and environment management of a mine tunnel, uses tap water as the intermediary to adsorb and purify gas and dust particles in the mine tunnel, realizes cyclic utilization of tap water, performs cooling treatment on the gas in the mine tunnel through the throttle expansion effect, remarkably reduces the probability of accidents caused by dust accumulation in the mine tunnel, and improves the working environment in the mine; the dynamic and static exchange type gas ventilation detection mechanism comprises a dynamic and static exchange type gas detection device and a variable cross-section accelerated ventilation detection device, the dynamic and static exchange type gas detection device and the variable cross-section accelerated ventilation detection device are sequentially and fixedly arranged on the side wall of the positioning frame from top to bottom, the throttling expansion type environment management mechanism comprises a two-stage throttling expansion cooling box and a filtering and purifying device, the two-stage throttling expansion cooling box is fixedly arranged on the side wall of the positioning frame, the two-stage throttling expansion cooling box is arranged on the side edge of the dynamic and static exchange type gas detection device, the filtering and purifying device is fixedly arranged in the two-stage throttling expansion cooling box in a penetrating way, the negative pressure recovery mechanism comprises a negative pressure collection pipeline and a storage device, the negative pressure collection pipeline is fixedly arranged on the lower wall of the positioning frame, the storage device is fixedly arranged on the side wall of the positioning frame, and the negative pressure collection pipeline is in penetrating connection with the storage device, the locating rack comprises a wall-hanging type bearing frame and a standing type bearing frame, the wall-hanging type bearing frame is fixedly arranged on the upper wall of the standing type bearing frame, the dynamic and static exchange type gas ventilation detection mechanism and the throttling expansion type environment management mechanism are respectively arranged on the side wall of the wall-hanging type bearing frame, and the storage device is arranged on the side wall of the standing type bearing frame.
Wherein, the dynamic and static exchange type gas detection device comprises an airflow centralized guide hood, a gas guide fan and a gas detector, the airflow centralized guide hood and the gas detector are sequentially and fixedly arranged on the side wall of the wall-hanging type bearing frame from top to bottom, the gas guide fan is arranged on the side wall of the wall-hanging type bearing frame, the gas guide fan is arranged in the middle of the airflow centralized guide hood in a penetrating way, the airflow centralized guide hood comprises a multidirectional airflow bundling hemispherical plate, a bundling pipe and a gas guide pipe, the gas guide pipe is fixedly arranged on the side wall of the wall-hanging type bearing frame, the bundling pipe is fixedly connected and communicated with the upper end of the gas guide pipe, the multidirectional airflow bundling hemispherical plate is fixedly connected and communicated with the upper end of the bundling pipe, the upper wall of the multidirectional airflow bundling hemispherical plate is provided with a dispersed airflow bundling pipe in a spherical array in a penetrating way, and the gas guide fan is arranged in the middle of the gas guide pipe in a penetrating way, the gas detector is arranged below the gas guide pipe; when the gas guide fan operates, the gas flow is intensively guided into the hood to generate gas flow, the internal gas pressure of the multidirectional gas flow bundling hemispherical plate and the bundling pipe is reduced, the gas above the gas flow centralization guide hood enters the lower part of the multidirectional gas flow bundling hemispherical plate from the dispersed gas flow bundling pipe respectively under the action of the gas guide fan and flows to the upper part of the gas detector along the bundling pipe and the gas guide pipe, the gas detector detects the gas flow, the gas guide fan enables the gas above the gas flow centralization guide hood to be changed from static state to dynamic state, the gas detection of the gas above the gas flow centralization guide hood is completed under the condition that the gas detector is kept in a static state, the dispersed gas flow bundling pipe intensively collects the gas in all directions, the detection coverage area is obviously improved, the false detection leakage is effectively avoided, the gas detector and the detected gas are subjected to dynamic and static exchange, and the detected gas at the poor ventilation part actively enters the gas detector, the effective detection of all corners and poor ventilation positions in the mine roadway is realized under the condition of no need of manual operation.
Preferably, the variable cross-section accelerated ventilation detection device comprises a variable cross-section airflow acceleration component, a pneumatic rotating component and a wind feedback component, the variable cross-section airflow acceleration component is fixedly arranged on the side wall of the wall-hanging type bearing frame, the variable cross-section airflow acceleration component is arranged below the gas detector, the pneumatic rotating component is rotatably arranged inside the variable cross-section airflow acceleration component, the wind feedback component is fixedly arranged inside the variable cross-section airflow acceleration component, the variable cross-section airflow acceleration component comprises an airflow acceleration pipeline and an airflow acceleration fixing frame, the airflow acceleration fixing frame is fixedly arranged on the side wall of the wall-hanging type bearing frame, the airflow acceleration pipeline is fixedly arranged inside the airflow acceleration fixing frame, the two ends of the airflow acceleration pipeline are respectively provided with an air inlet wide opening and an air outlet narrow opening, the pneumatic rotating component comprises a pneumatic rotating shaft and an air cup, the pneumatic rotating shaft is rotatably arranged on the upper wall of the airflow acceleration fixing frame, the wind cups are annularly and equidistantly arranged on the circumferential side wall of the pneumatic rotating shaft in an array mode, the lower end of the pneumatic rotating shaft is fixedly provided with a power generation rotor, the wind feedback assembly comprises a power generation stator and an ammeter, the power generation stator is fixedly arranged inside the airflow acceleration fixing frame and is arranged on the side edge of the power generation rotor, the ammeter is fixedly arranged on the side wall of the storage device, and the ammeter is electrically connected with the power generation rotor; when the coal mine underground controls the gas, the underground ventilation system operates, when the position of the variable cross-section accelerated ventilation detection device is well ventilated, the airflow generated by the underground ventilation system enters the airflow accelerating pipeline from the air inlet wide port and flows out from the air outlet narrow port to the pneumatic rotating assembly, the airflow speed is continuously increased due to the continuous reduction of the cross-sectional area of the airflow accelerating pipeline in the flowing process of the airflow in the airflow accelerating pipeline, when the accelerated air flows to the pneumatic rotating assembly, the airflow blows the wind cup, the wind cup drives the pneumatic rotating shaft to rotate, the power generation rotor rotates relative to the power generation stator, the power generation rotor and the power generation stator generate current and display the current magnitude on the ammeter, the current data is linearly related to the rotating speed of the power generation rotor relative to the power generation stator, namely, the current data is linearly related to the air flow speed, an operator reads the current data through the ammeter so as to judge the ventilation effect of the position of the variable cross-section accelerated ventilation detection device, the variable cross-section accelerated ventilation detection device can effectively ventilate and detect all areas in a mine tunnel under the condition that manual work is not needed, the safety of mine workers is guaranteed, and data support is provided for adjusting and updating a ventilation system by evaluating the ventilation effect and ventilation blind spots of all the areas in the mine tunnel.
Furthermore, conical air inlet pipes are arranged on the side wall of the two-stage throttling expansion cooling box in an equidistant array in a penetrating manner, conical air outlet pipes are arranged on the upper wall of the two-stage throttling expansion cooling box in an equidistant array in a penetrating manner, throttling expansion fans are arranged on the inner side wall of the two-stage throttling expansion cooling box in an equidistant array manner, and the throttling expansion fans are respectively communicated with the end parts of the conical air inlet pipes; the caliber of the pipe orifice of the end part of the conical air inlet pipe far away from the side wall of the two-stage throttling expansion cooling box is larger than that of the pipe orifice of the end part of the conical air outlet pipe far away from the side wall of the two-stage throttling expansion cooling box, the caliber of the pipe orifice of the end part of the conical air outlet pipe far away from the side wall of the two-stage throttling expansion cooling box is smaller than that of the pipe orifice of the end part of the conical air outlet pipe near the side wall of the two-stage throttling expansion cooling box, the throttling expansion fans are synchronously started and stopped, when the throttling expansion fans operate, the air outside the two-stage throttling expansion cooling box is driven to enter the two-stage throttling expansion cooling box through the conical air inlet pipe and is discharged out of the two-stage throttling expansion cooling box, the throttling expansion effect is generated by the variable cross-section characteristics of the conical air inlet pipe and the conical air outlet pipe, thereby realizing the two-stage cooling of the air, and changing the ventilation condition inside the mine tunnel, effectively avoiding the accumulation of gas at the poor ventilation position.
As a further preferred aspect of the present disclosure, the filtration and purification apparatus includes a hydraulic pressure drop airflow purification assembly, a circulation purification water storage tank, a centrifugal separation assembly, and a dirt collection tank, the hydraulic pressure drop airflow purification assembly is disposed on a side wall inside the two-stage throttling expansion cooling tank in an equidistant array, the circulation purification water storage tank is fixedly disposed on a side wall inside the two-stage throttling expansion cooling tank, the centrifugal separation assembly is fixedly disposed on a bottom wall inside the two-stage throttling expansion cooling tank, the dirt collection tank is fixedly disposed on an upper wall of the standing type carrier, the hydraulic pressure drop airflow purification assembly includes an airflow purification pipe, a hydraulic pressure drop nozzle, a hydraulic pressure drop communication pipe, and a hydraulic pressure drop pump, two ends of the airflow purification pipe are respectively connected to an output end of the throttling expansion fan and an upper wall of the circulation purification water storage tank in a through manner, and the hydraulic pressure drop nozzle is disposed on a side wall of the airflow purification pipe along a bending direction of an axis of the airflow purification pipe, the hydraulic pressure drop communicating pipe penetrates through the side wall of the circulating purification water storage tank, the end part of the hydraulic pressure drop nozzle is respectively communicated and connected with the side wall of the hydraulic pressure drop communicating pipe, the hydraulic pressure drop pump is fixedly arranged on the side wall of the circulating purification water storage tank in a penetrating manner, the hydraulic pressure drop pump is arranged on the end part, close to the circulating purification water storage tank, of the hydraulic pressure drop communicating pipe in a penetrating manner, the lowest point of the side wall of the airflow purification pipe is respectively provided with a sewage collecting pipe in a penetrating manner, the circulating purification water storage tank is filled with a purified water body, the end part, penetrating through the upper wall of the circulating purification water storage tank, of the airflow purification pipe is arranged below the liquid level of the purified water body in the circulating purification water storage tank, and the lower end of the conical air outlet pipe is respectively communicated and connected with the upper wall of the circulating purification water storage tank; the hydraulic pressure drop nozzle penetrates through the end part of the airflow purification pipe and respectively faces the descending direction of the airflow purification pipe, when the throttling expansion fan operates, the air in the conical air inlet pipe is driven to wrap and carry dust particles into the airflow purification pipe and flow along the airflow purification pipe until the air enters the circulating purification water storage tank, when the airflow flows along the inside of the airflow purification pipe, the hydraulic pressure drop pump operates to enable water in the circulating purification water storage tank to flow out through the hydraulic pressure drop communicating pipe and respectively spray out from the hydraulic pressure drop nozzle, the hydraulic pressure drop nozzle sprays water into the airflow purification pipe, the dust gas in the airflow purification pipe repeatedly sprays water mist during the flowing process, most dust particles are adsorbed by the water mist and adhered to the inner wall of the airflow purification pipe, and finally slide to the sewage collecting pipe along the inner wall of the airflow purification pipe, and a small amount of dust particles enter the circulating purification water storage tank along with the airflow, and the water in the purification water storage tank is mixed and adsorbed, finally, the purified air flow is discharged from the conical air outlet pipe and generates the throttling expansion effect again to further cool, and the filtering and purifying device purifies and adsorbs the underground coal mine gas in a hydraulic pressure drop mode, so that the possibility of accidents caused by dust in a mine tunnel is remarkably reduced, and the construction operation environment in the mine tunnel is improved.
Further, the centrifugal separation component comprises a water collecting barrel, a centrifugal motor, a water circulating pipe and a water circulating pump, wherein the water collecting barrel is arranged on the bottom wall inside the two-stage throttling expansion cooling box in an equidistant array manner, the centrifugal barrel is arranged inside the water collecting barrel in a rotating manner, the central rotating sleeve of the upper wall of the centrifugal barrel is arranged at the lower end of the sewage collecting pipe, the equidistant array of the centrifugal motor is fixedly arranged on the bottom wall of the two-stage throttling expansion cooling box, the centrifugal motor is arranged below the centrifugal barrel, the water circulating pipe and the water circulating pump are respectively and fixedly arranged on the side wall inside the two-stage throttling expansion cooling box, the lower end of the water circulating pipe is respectively communicated with the bottom wall of the water collecting barrel, the upper end of the water circulating pipe is communicated with the side wall of the circulating purification water storage box, the water circulating pump is arranged in the middle of the water circulating pipe, the circumferential side wall of the centrifugal barrel is provided with a dust filter screen, and the lower wall of the centrifugal barrel is fixedly provided with a hollow gear, the centrifugal power gear is coaxially and fixedly arranged at the output end of the centrifugal motor, the centrifugal power gear is respectively meshed with the hollow gear, a sewage collecting pipe and a sewage collecting pump are arranged on the upper wall of the sewage collecting box, the lower end of the sewage collecting pipe is communicated with the upper wall of the sewage collecting box, the upper end of the sewage collecting pipe is rotatably sleeved at the lower end of the hollow gear, the sewage collecting pump is arranged at the middle lower part of the sewage collecting pipe in a penetrating manner, and the airflow purification pipe, the sewage collecting pipe, the centrifugal cylinder, the hollow gear, the sewage collecting pipe and the sewage collecting box are sequentially communicated; the dust and mud mixture sliding down to the sewage collecting pipe along the inner wall of the airflow purification pipe falls into the centrifugal cylinder under the action of gravity, the centrifugal motor operates and drives the centrifugal power gear to rotate, the hollow gear rotates to drive the centrifugal cylinder to rotate, the dust and mud mixture is gradually accumulated on the side edge of the dust filter screen under the action of centrifugal force, moisture in the dust and mud mixture penetrates through the dust filter screen and is thrown to the inner side wall of the water collecting cylinder under the action of centrifugal force, the dust and mud mixture slides down to the bottom wall along the inner side wall of the water collecting cylinder under the action of gravity, dust mud in the dust and mud mixture is retained in the centrifugal cylinder due to the blocking of the dust filter screen, when the water circulating pump operates, water in the water collecting cylinder respectively flows into the circulating purification water storage tank through the water circulating pipe under the action of pumping pressure of the water circulating pump, and when the sewage collecting pump operates, the dust and mud in the centrifugal cylinder are pumped into the sewage collecting tank through the sewage collecting pipe to be stored, the dust particle mixture after the hydraulic pressure drop treatment is effectively separated by the centrifugal separation assembly, the water resource recycling is realized through the action of the water circulating pipe and the water circulating pump, the energy consumption of equipment is obviously reduced, and the water resource waste is reduced.
Further, the negative pressure collecting pipeline comprises a main pipeline, an auxiliary pipeline and an electromagnetic valve, the main pipeline is fixedly arranged on the side wall of the standing type bearing frame, the auxiliary pipeline is fixedly arranged on the upper wall of the airflow acceleration fixing frame, the lower end of the auxiliary pipeline and the side wall of the main pipeline are in through connection, the electromagnetic valve is fixedly arranged on the upper wall of the airflow acceleration fixing frame, the electromagnetic valve is arranged on the upper end of the auxiliary pipeline in a penetrating mode, the upper end of the auxiliary pipeline is arranged on the side edge of the lower end of the gas guide pipe, and the electromagnetic valve and the gas detector are electrically connected.
Preferably, the storage device comprises a negative pressure collecting pump and a gas storage tank, the negative pressure collecting pump and the gas storage tank are respectively and fixedly arranged on the upper wall of the standing type bearing frame, the end part of the main pipeline is communicated with the side wall of the gas storage tank, the negative pressure collecting pump is arranged at the end part of the main pipeline close to the gas storage tank in a penetrating way, and the negative pressure collecting pump is electrically connected with the electromagnetic valve; when the gas detector detects gas, the electromagnetic valve and the negative pressure collecting pump run synchronously, the electromagnetic valve enables the interior of the auxiliary pipeline to form a passage, the negative pressure collecting pump drives the gas in the main pipeline to flow, so that the gas at the upper end of the auxiliary pipeline enters the main pipeline along the auxiliary pipeline and is pressed into the gas storage tank for storage, when a plurality of groups of the throttle expansion type gas dynamic and static exchange detection and treatment device for the underground coal mine provided by the scheme are arranged in a mine tunnel, all the main pipelines are sequentially communicated and connected, the storage device only needs to be provided with one group and is arranged at a place convenient for an operator to operate, at the moment, when partial electromagnetic valves are opened, the negative pressure collecting pump starts to operate, the negative pressure collecting pipeline and the storage device collect and process gas stored in the mine tunnel in a mode of changing harm into benefit, the gas storage amount in the mine tunnel is reduced, and meanwhile gas is effectively recycled.
As a further preferred option of this scheme, the wall-hanging bears the frame and keeps away from the lateral wall symmetry of sound exchange formula gas ventilation detection mechanism and fixedly is equipped with the wall-hanging folded plate, stand type bears the fixed electric push rod that stands of frame upper wall, the wall-hanging bears the frame and fixedly locates the electric push rod upper end of standing.
The invention with the structure has the following beneficial effects:
(1) the dynamic and static exchange type gas ventilation detection mechanism applies a reverse action principle and a principle of increasing asymmetry to the detection of the ventilation effect of the mine roadway and the gas accumulation, effectively reduces the risk brought by manpower detection, simultaneously realizes auxiliary ventilation and ensures that the detection result is more accurate;
(2) the throttling expansion type environment treatment mechanism applies the intermediary principle and the throttling expansion effect to dust fall treatment and environment treatment of the mine tunnel, and realizes quality improvement of the mine tunnel operation environment by utilizing the phenomena of circulating water pressure dust fall and throttling expansion cooling;
(3) the dispersed airflow bundling pipe is used for intensively bundling the air in all directions, so that the detection coverage area is obviously improved, and the missed detection and the false detection are effectively avoided;
(4) the gas detector and the detected gas are subjected to dynamic and static exchange, so that the detected gas at the position with poor ventilation can actively enter the gas detector, and effective detection of all corners and the positions with poor ventilation in a mine roadway can be realized without manual operation;
(5) the variable cross-section accelerated ventilation detection device can effectively detect ventilation of each area in the mine roadway without manual entry, the safety of mine workers is guaranteed, and data support is provided for adjustment and update of a ventilation system through evaluation of ventilation effects and ventilation blind spots of each area in the mine roadway;
(6) the gas generates throttling expansion effect due to the variable cross-section characteristics of the conical air inlet pipe and the conical air outlet pipe, so that double-stage cooling of the gas is realized, and the construction operation environment of a mine tunnel is improved;
(7) in the operation process of the throttling expansion fan, gas flows are generated near the two-stage throttling expansion cooling box, so that the ventilation condition in the mine tunnel is changed, and the accumulation of gas at the poor ventilation position is effectively avoided;
(8) the filtering and purifying device purifies and adsorbs underground coal mine gas in a hydraulic pressure drop mode, so that the possibility of accidents caused by dust in a mine tunnel is obviously reduced;
(9) the centrifugal separation component effectively separates the dust particle mixture subjected to hydraulic pressure drop treatment, and water resource recycling is realized under the action of the water circulation pipe and the water circulation pump, so that the energy consumption of equipment is remarkably reduced, and the waste of water resources is reduced;
(10) the negative pressure recovery mechanism collects and processes gas accumulated in the mine tunnel in a mode of changing harm into benefit, so that the gas accumulation in the mine tunnel is reduced, and meanwhile, the gas is effectively recycled.
Drawings
FIG. 1 is a first structural schematic diagram of a throttle expansion type gas dynamic and static exchange detection and treatment device for a coal mine underground, which is provided by the invention;
FIG. 2 is a second structural schematic diagram of the throttle expansion type gas dynamic and static exchange detection and treatment device for the underground coal mine, which is provided by the invention;
FIG. 3 is a schematic view of the internal structure of the throttle expansion type environmental remediation mechanism proposed by the present invention;
FIG. 4 is a schematic structural view of a dynamic-static exchange type gas ventilation detection mechanism provided by the invention;
FIG. 5 is a partial enlarged view of portion A of FIG. 4;
FIG. 6 is a side cross-sectional view of a throttle expansion environmental remediation mechanism as contemplated by the present invention;
FIG. 7 is a side cross-sectional view of a centrifugal separation assembly in accordance with the present invention;
FIG. 8 is a schematic structural diagram of a negative pressure recovery mechanism according to the present invention;
fig. 9 is a schematic diagram of a working flow of the throttle expansion type gas dynamic and static exchange detection and treatment device for the underground coal mine provided by the invention.
Wherein, 1, a positioning frame, 11, a wall-mounted bearing frame, 111, a wall-mounted folding plate, 12, a standing bearing frame, 121, a standing electric push rod, 2, a dynamic and static exchange type gas ventilation detection mechanism, 21, a dynamic and static exchange type gas detection device, 211, an airflow concentrated guide hood, 2110, a multi-direction airflow bundling hemispherical plate, 2111, a bundling pipe, 2112, a gas guide pipe, 2113, a dispersed airflow bundling pipe, 212, a gas guide fan, 213, a gas detector, 22, a variable-section accelerated ventilation detection device, 221, a variable-section airflow acceleration assembly, 2210, an airflow acceleration pipeline, 2211, an airflow acceleration fixing frame, 2212, an air inlet wide mouth, 2213, an air outlet narrow mouth, a pneumatic power-driven assembly, a rotating assembly, 2220, a pneumatic rotating shaft, 2221, a wind cup, 2222, a power generation rotor, 223, a wind power feedback assembly, 2230, a power generation stator, 2231, a current meter, 3 and a throttling environment expansion type environment management mechanism, 31. 311, a conical air inlet pipe, 312, a conical air outlet pipe, 313, a throttling expansion fan, 32, a filtering and purifying device, 321, a hydraulic pressure drop air flow purifying component, 3210, an air flow purifying pipe, 3211, a hydraulic pressure drop nozzle, 3212, a hydraulic pressure drop communicating pipe, 3213, a hydraulic pressure drop pump, 3214, a sewage collecting pipe, 322, a circulating purifying water storage tank, 323, a centrifugal separating component, 3230, a water collecting cylinder, 3231, a centrifugal cylinder, 3232, a centrifugal motor, 3233, a water circulating pipe, 3234, a water circulating pump, 3235, a dust filter screen, 3236, a hollow gear, 3237, a centrifugal power gear, 324, a sewage collecting tank, 3240, a sewage collecting pipe, 3241, a sewage collecting pump, 4, a negative pressure recovery mechanism, 41, a negative pressure collecting pipeline, 411, a main pipeline, 412, a secondary pipeline, 413, an electromagnetic valve, 42, a storage device, 421, a negative pressure collecting pump, 422 and a gas storage tank.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in figures 1-3, the scheme provides a throttle expansion type gas dynamic and static exchange detection and treatment device for a coal mine, which comprises a positioning frame 1, a dynamic and static exchange type gas ventilation detection mechanism 2, a throttle expansion type environment treatment mechanism 3 and a negative pressure recovery mechanism 4, wherein the dynamic and static exchange type gas ventilation detection mechanism 2 and the throttle expansion type environment treatment mechanism 3 are respectively and fixedly arranged on the side wall of the positioning frame 1, the throttle expansion type environment treatment mechanism 3 is arranged above the dynamic and static exchange type gas ventilation detection mechanism 2, the negative pressure recovery mechanism 4 is fixedly arranged on the side wall of the positioning frame 1, the dynamic and static exchange type gas ventilation detection mechanism 2 comprises a dynamic and static exchange type gas detection device 21 and a variable cross-section accelerated ventilation detection device 22, the dynamic and static exchange type gas detection device 21 and the variable cross section accelerated ventilation detection device 22 are sequentially and fixedly arranged on the side wall of the positioning frame 1 from top to bottom, the throttling expansion type environment improvement mechanism 3 comprises a double-stage throttling expansion cooling box 31 and a filtering and purifying device 32, the double-stage throttling expansion cooling box 31 is fixedly arranged on the side wall of the positioning frame 1, the double-stage throttling expansion cooling box 31 is arranged on the side edge of the dynamic and static exchange type gas detection device 21, the filtering and purifying device 32 is fixedly arranged in the double-stage throttling expansion cooling box 31 in a penetrating way, the negative pressure recovery mechanism 4 comprises a negative pressure collecting pipeline 41 and a storage device 42, the negative pressure collecting pipeline 41 is fixedly arranged on the lower wall of the positioning frame 1, the storage device 42 is fixedly arranged on the side wall of the positioning frame 1, the negative pressure collecting pipeline 41 is communicated with the storage device 42, the positioning frame 1 comprises a wall-hanging type bearing frame 11 and a vertical type bearing frame 12, the wall-hanging type 11 is fixedly arranged on the upper wall of the vertical type bearing frame 12, the dynamic and static exchange type gas ventilation detection mechanism 2 and the throttling expansion type environment improvement mechanism 3 are respectively arranged on the side wall of the wall-hanging type bearing frame 11, the storage device 42 is provided on the side wall of the standing carrier 12.
As shown in fig. 4, the dynamic and static exchange type gas detecting apparatus 21 includes an airflow concentration guide hood 211, a gas guide fan 212 and a gas detector 213, the airflow concentration guide hood 211 and the gas detector 213 are sequentially fixed on a side wall of the wall-hanging type carrier 11 from top to bottom, the gas guide fan 212 is arranged on a side wall of the wall-hanging type carrier 11, the gas guide fan 212 is arranged in the middle of the airflow concentration guide hood 211, the airflow concentration guide hood 211 includes a multidirectional airflow bundling hemispherical plate 2110, a bundling pipe 2111 and a gas guide pipe 2112, the gas guide pipe 2112 is fixed on a side wall of the wall-hanging type carrier 11, the bundling pipe 2111 is closely fitted and fixedly and penetratingly arranged at an upper end of the gas guide pipe 2112, the multidirectional airflow bundling hemispherical plate 2110 is closely fitted and fixedly arranged at an upper end of the bundling pipe 2111, a spherical array of the upper wall of the multidirectional airflow bundling hemispherical plate 2110 is provided with a dispersed airflow bundling pipe 2113, the gas guide fan 212 is arranged in the middle of the gas guide pipe 2112, the gas detector 213 is provided below the gas guide tube 2112; the dispersed airflow bundling pipe 2113 is used for intensively bundling the gas in each direction, so that the detection coverage area is obviously improved, the missing detection false detection is effectively avoided, the gas detector 213 and the detected gas are subjected to dynamic and static exchange, the detected gas at the position with poor ventilation actively enters the gas detector 213, and the effective detection of each corner and the position with poor ventilation in the mine roadway is realized without manual operation.
As shown in fig. 2, 4 and 5, the variable cross-section accelerated ventilation detecting device 22 includes a variable cross-section airflow accelerating assembly 221, a pneumatic rotating assembly 222 and a wind feedback assembly 223, the variable cross-section airflow accelerating assembly 221 is fixed on the sidewall of the wall-hanging type carrier 11, the variable cross-section airflow accelerating assembly 221 is arranged below the gas detector 213, the pneumatic rotating assembly 222 is rotatably arranged inside the variable cross-section airflow accelerating assembly 221, the wind feedback assembly 223 is fixed inside the variable cross-section airflow accelerating assembly 221, the variable cross-section airflow accelerating assembly 221 includes an airflow accelerating pipe 2210 and an airflow accelerating fixing frame 2211, the airflow accelerating fixing frame 2211 is fixed on the sidewall of the wall-hanging type carrier 11, the airflow accelerating pipe 2210 is fixed inside the airflow accelerating fixing frame 2211, the two ends of the airflow accelerating pipe 2210 are respectively provided with an air inlet wide mouth 2212 and an air outlet narrow mouth 2213, the pneumatic rotating assembly 222 includes a pneumatic rotating shaft 2220 and an air cup 2221, the pneumatic rotating shaft 2220 is rotatably arranged on the upper wall of the airflow acceleration fixing frame 2211, the air cups 2221 are annularly arranged on the circumferential side wall of the pneumatic rotating shaft 2220 in an equidistant array, the lower end of the pneumatic rotating shaft 2220 is fixedly provided with a power generation rotor 2222, the wind feedback assembly 223 comprises a power generation stator 2230 and an ammeter 2231, the power generation stator 2230 is fixedly arranged inside the airflow acceleration fixing frame 2211, the power generation stator 2230 is arranged on the side edge of the power generation rotor 2222, the ammeter 2231 is fixedly arranged on the side wall of the storage device 42, and the ammeter 2231 is electrically connected with the power generation rotor 2222; the variable cross-section accelerated ventilation detection device 22 can effectively perform ventilation detection on all areas in the mine roadway under the condition that manual entry is not needed, safety of mine workers is guaranteed, and data support is provided for adjustment and updating of a ventilation system by evaluating ventilation effects and ventilation blind spots of all areas in the mine roadway.
As shown in fig. 3, the conical air inlet pipe 311 is arranged on the side wall of the two-stage throttling expansion cooling box 31 in an equidistant array manner, the conical air outlet pipe 312 is arranged on the upper wall of the two-stage throttling expansion cooling box 31 in an equidistant array manner, the throttling expansion fans 313 are arranged on the inner side wall of the two-stage throttling expansion cooling box 31 in an equidistant array manner, and the throttling expansion fans 313 are respectively connected with the end parts of the conical air inlet pipe 311 in a penetrating manner; the gas generates throttling expansion effect due to the variable cross-section characteristics of the conical air inlet pipe 311 and the conical air outlet pipe 312, so that double-stage cooling of the gas is realized, meanwhile, in the operation process of the throttling expansion fan 313, gas flow is generated near the double-stage throttling expansion cooling box 31, the ventilation condition inside a mine roadway is changed, and accumulation of gas at a poor ventilation position is effectively avoided.
As shown in fig. 2, fig. 3 and fig. 6, the filtering and purifying device 32 includes a hydraulic pressure-drop air flow purifying assembly 321, a circulating purification water storage tank 322, a centrifugal separation assembly 323 and a dirt collection tank 324, the hydraulic pressure-drop air flow purifying assembly 321 is arranged on the inner side wall of the two-stage throttling expansion cooling tank 31 in an equidistant array, the circulating purification water storage tank 322 is fixedly arranged on the inner side wall of the two-stage throttling expansion cooling tank 31, the centrifugal separation assembly 323 is fixedly arranged on the inner bottom wall of the two-stage throttling expansion cooling tank 31, the dirt collection tank 324 is fixedly arranged on the upper wall of the standing type bearing frame 12, the hydraulic pressure-drop air flow purifying assembly 321 includes an air flow purifying pipe 3210, a hydraulic pressure-drop nozzle 3211, a hydraulic pressure-drop communicating pipe 3212 and a hydraulic pressure-drop pump 3213, two ends of the air flow purifying pipe 3210 are respectively connected with the output end of the throttling expansion fan 313 and the upper wall of the circulating purification water storage tank 322 in a through manner, the hydraulic pressure-drop nozzle 3211 is arranged on the side wall of the air flow purifying pipe 3210 along the axial bending direction of the air flow purifying pipe 3210, the hydraulic pressure drop communicating pipe 3212 penetrates the side wall of the circulation purification water storage tank 322, the end of the hydraulic pressure drop nozzle 3211 is respectively connected with the side wall of the hydraulic pressure drop communicating pipe 3212 in a penetrating manner, the hydraulic pressure drop pump 3213 is fixedly arranged on the side wall of the circulation purification water storage tank 322 in a penetrating manner, the hydraulic pressure drop pump 3213 penetrates the end of the hydraulic pressure drop communicating pipe 3212 close to the circulation purification water storage tank 322 in a penetrating manner, the lowest point of the side wall of the air flow purification pipe 3210 is respectively provided with a sewage collecting pipe 3214 in a penetrating manner, the circulation purification water storage tank 322 is filled with purified water, the air flow purification pipe 3210 penetrates the end of the upper wall of the circulation purification water storage tank 322 and is arranged below the liquid level of the purified water in the circulation purification water storage tank 322, and the lower end of the conical air outlet pipe 312 is respectively connected with the upper wall of the circulation purification water storage tank 322 in a penetrating manner; the filtering and purifying device 32 purifies and adsorbs the gas in the coal mine in a hydraulic pressure drop mode, so that the possibility of accidents caused by dust in the mine roadway is obviously reduced, and the construction operation environment in the mine roadway is improved.
As shown in fig. 6 and 7, the centrifugal separation assembly 323 includes a water collecting cylinder 3230, a centrifugal cylinder 3231, a centrifugal motor 3232, a water circulation pipe 3233 and a water circulation pump 3234, the water collecting cylinder 3230 is disposed on the bottom wall of the two-stage throttling and expanding and cooling tank 31 in an equidistant array, the centrifugal cylinder 3231 is rotatably disposed inside the water collecting cylinder 3230, the centrifugal cylinder 3231 is rotatably sleeved on the lower end of the sewage collecting pipe 3214 at the upper wall thereof, the centrifugal motor 3232 is fixedly disposed on the bottom wall of the two-stage throttling and expanding and cooling tank 31 in an equidistant array, the centrifugal motor 3232 is disposed below the centrifugal cylinder 3231, the water circulation pipe 3233 and the water circulation pump 3234 are respectively fixedly disposed on the inner side wall of the two-stage throttling and expanding and cooling tank 31, the lower end of the water circulation pipe 3233 is respectively communicated with the bottom wall of the water collecting cylinder 3230, the upper end of the water circulation pipe 3233 is communicated with the side wall of the circulation and purification and water storage tank 322, the water circulation pump 3234 is communicated with the middle of the water circulation pipe 3233, the water circulation pump 3234 is disposed on the inner side wall of the water circulation pipe 3233, the centrifugal cylinder 3231 is provided with a dust filter screen 3235 on the circumferential side wall, a hollow gear 3236 is fixedly arranged in the center of the lower wall of a centrifugal cylinder 3231, a centrifugal power gear 3237 is coaxially and fixedly arranged at the output end of a centrifugal motor 3232, the centrifugal power gear 3237 is respectively meshed with the hollow gear 3236, a sewage collecting pipe 3240 and a sewage collecting pump 3241 are arranged on the upper wall of a sewage collecting box 324, the lower end of the sewage collecting pipe 3240 is communicated with the upper wall of the sewage collecting box 324, the upper end of the sewage collecting pipe 3240 is rotatably sleeved at the lower end of the hollow gear 3236, the sewage collecting pump 3241 is arranged at the middle lower part of the sewage collecting pipe 3240 in a penetrating manner, and an airflow purification pipe 3210, a sewage collecting pipe 3214, the centrifugal cylinder 3231, the hollow gear 3236, the sewage collecting pipe 3240 and the sewage collecting box 324 are sequentially communicated; the dust particle mixture after hydraulic pressure drop treatment is effectively separated by the centrifugal separation component 323, and water resource recycling is realized through the action of the water circulating pipe 3233 and the water circulating pump 3234, so that the energy consumption of equipment is remarkably reduced, and the waste of water resources is reduced.
As shown in fig. 8, the negative pressure collecting pipeline 41 includes a main pipeline 411, a sub-pipeline 412 and a solenoid valve 413, the main pipeline 411 is fixedly disposed on the side wall of the standing type loading frame 12, the sub-pipeline 412 is fixedly disposed on the upper wall of the airflow acceleration fixing frame 2211, the lower end of the sub-pipeline 412 is connected to the side wall of the main pipeline 411 in a penetrating manner, the solenoid valve 413 is fixedly disposed on the upper wall of the airflow acceleration fixing frame 2211, the solenoid valve 413 is disposed at the upper end of the sub-pipeline 412 in a penetrating manner, the upper end of the sub-pipeline 412 is disposed at the side edge of the lower end of the gas guide pipe 2112, and the solenoid valve 413 is electrically connected to the gas detector 213.
As shown in fig. 8, the storage device 42 includes a negative pressure collecting pump 421 and a gas storage tank 422, the negative pressure collecting pump 421 and the gas storage tank 422 are respectively fixed on the upper wall of the standing type carrier 12, the end of the main pipe 411 is connected with the side wall of the gas storage tank 422 in a penetrating manner, the negative pressure collecting pump 421 is arranged at the end of the main pipe 411 close to the gas storage tank 422 in a penetrating manner, and the negative pressure collecting pump 421 is electrically connected with the electromagnetic valve 413; the negative pressure recovery mechanism 4 collects and processes gas accumulated in the mine tunnel in a mode of changing harm into benefit, so that the gas accumulation in the mine tunnel is reduced, and meanwhile, the gas is effectively recycled.
As shown in fig. 2, wall-hanging flaps 111 are symmetrically and fixedly disposed on the side wall of the wall-hanging type carrier 11 away from the dynamic and static exchange type gas ventilation detecting mechanism 2, a standing electric push rod 121 is fixedly disposed on the upper wall of the standing type carrier 12, and the wall-hanging type carrier 11 is fixedly disposed on the upper end of the standing electric push rod 121.
When the device is used, coal mine gas detection and treatment workers place the throttling expansion type gas dynamic and static exchange detection and treatment device for the underground coal mine in advance at points needing to be detected in a mine tunnel, detect poor ventilation areas such as upper corners of coal faces, high tops of driving faces, blind tunnels stopping wind, cutting places of mining machines and the like, fill water in circulating purification water storage tanks 322 of all sets of devices, flexibly place and fix the devices according to site topographic conditions by the operators when the devices are positioned, fix the throttling expansion type gas dynamic and static exchange detection and treatment device for the underground coal mine by the wall-hanging folded plate 111 or the standing type bearing frame 12, sequentially communicate main pipelines 411 by the aid of pipelines and sequentially electrically connect electromagnetic valves 413 when a plurality of sets of devices are placed in the same mine, the gas detector 213 is electrically connected in sequence, the power generation rotor 2222 and the power generation stator 2230 are electrically connected in sequence to the ammeter 2231, after the equipment connection and preparation work is completed, the initial conditions for gas detection and control are met, and in the initial state, each set of electromagnetic valves 413 is in a closed state.
When the ventilation system is started in a mine, the throttle expansion type gas dynamic and static exchange detection and treatment device for the underground coal mine provided by the scheme synchronously starts gas detection and treatment, when the position of the variable cross-section accelerated ventilation detection device 22 is well ventilated, the airflow generated by the underground ventilation system enters the airflow accelerating pipeline 2210 from the air inlet wide opening 2212 and flows out from the air outlet narrow opening 2213 to the pneumatic rotating assembly 222, the airflow speed is continuously increased due to the continuous reduction of the cross-sectional area of the airflow accelerating pipeline 2210 in the flowing process of the airflow accelerating pipeline 2210, and when the accelerated airflow flows to the pneumatic rotating assembly 222, the airflow blows the air cup 2221, the air cup 2221 drives the pneumatic rotating shaft 2220 to rotate, the power generation rotor 2222 rotates relative to the power generation stator 2230, the power generation rotor 2222 and the power generation stator 0 generate current and display the current on the ammeter 2231, the current data is linearly related to the rotation speed of the power generation rotor 2222 relative to the power generation stator 2230, namely, the current data is linearly related to the gas flow rate, an operator respectively reads the current data of each group of equipment through the ammeter 2231 so as to judge the ventilation effect of the place where the variable cross-section accelerated ventilation detection device 22 is located at each detection point, the variable cross-section accelerated ventilation detection device 22 performs effective ventilation detection on each area in a mine tunnel under the condition of no need of manual entry, the safety of mine workers is guaranteed, and data support is provided for ventilation system adjustment and updating by evaluating the ventilation effect and ventilation blind spots of each area in the mine tunnel; when the current meter displays that the ventilation effect of a part of the detection area is poor, an operator performs auxiliary main ventilation and gas detection on the area through the dynamic and static exchange type gas detection device 21, the operator starts the gas guide fan 212 on equipment in the detection area to enable the gas flow to be intensively guided into the hood 211 to generate gas flow, the internal air pressure of the multidirectional gas flow bundling hemispherical plate 2110 and the bundling pipe 2111 is reduced, the gas above the gas flow centralization guide hood 211 respectively enters the lower part of the multidirectional gas flow bundling hemispherical plate 2110 from the dispersed gas flow bundling pipe 2113 under the action of the gas guide fan 212 and flows to the upper part of the gas detector 213 along the bundling pipe 2111 and the gas guide pipe 2112, the gas detector 213 performs gas detection on the gas flow, the gas guide fan 212 enables the gas above the gas flow centralization guide hood 211 to be changed from static state to dynamic state, and the gas detection on the gas above the gas flow centralization guide hood 211 is completed under the condition that the gas detector 213 is kept in a static state, the dispersed airflow bundling pipe 2113 is used for intensively bundling the gas in each direction, so that the detection coverage area is obviously improved, the missing detection and the false detection are effectively avoided, the gas detector 213 and the detected gas are subjected to dynamic and static exchange, the detected gas at the position with poor ventilation actively enters the gas detector 213, and the effective detection of each corner and the position with poor ventilation in the mine roadway is realized without manual operation; when part gas detector 213 detects gas, negative pressure collection pump 421 and the solenoid valve 413 that corresponds with gas detector 213 synchronous operation, solenoid valve 413 makes the inside passageway that forms of auxiliary conduit 412, negative pressure collection pump 421 drives the inside gas flow of trunk pipe 411, makes the gas of auxiliary conduit 412 upper end follow auxiliary conduit 412 get into trunk pipe 411, and is impressed gas storage tank 422 and stores, the gas collection that deposits up inside the mine tunnel is handled through mode that becomes the harm to the benefit to negative pressure collection pipeline 41 and storage device 42, has not only reduced the inside gas accumulation amount of mine tunnel, makes gas obtain effective recycle simultaneously.
In the space under the coal mine, dust particles which are widely existed not only affect the health of construction operators, but also easily generate dust explosion, therefore, the throttle expansion type gas dynamic and static exchange detection and treatment device for the coal mine provided by the scheme realizes the effective purification treatment of the dust particles under the coal mine by arranging the throttle expansion type environment treatment mechanism 3, an operator controls the operation of a throttle expansion fan 313, a hydraulic pressure drop pump 3213, a centrifugal motor 3232 and a water circulating pump 3234, when the throttle expansion fan 313 operates, the gas wrapped dust particles outside a two-stage throttle expansion cooling box 31 are driven to enter the two-stage throttle expansion cooling box 31 through a conical air inlet pipe 311 and enter the air flow purification pipe 3210, the gas flows along the air flow purification pipe 3210 until entering the interior of the circulation purification water storage box 322, and in the process that the air flow flows along the interior of the air flow purification pipe 3210, the hydraulic pressure drop pump 3213 operates to make the water in the circulating purification water storage tank 322 flow out through the hydraulic pressure drop communication pipe 3212 and be sprayed out from the hydraulic pressure drop nozzle 3211, the hydraulic pressure drop nozzle 3211 sprays water into the airflow purification pipe 3210, the dust gas in the airflow purification pipe 3210 passes through the spraying of water mist for multiple times in the flowing process, most of the dust particles are adsorbed by the water mist and adhered to the inner wall of the airflow purification pipe 3210, and finally slide down to the sewage collecting pipe 3214 along the inner wall of the airflow purification pipe 3210, a small amount of dust particles enter the circulating purification water storage tank 322 along with the airflow, and are mixed with the water in the purification water storage tank and adsorbed, finally, the purified airflow is discharged from the conical air outlet pipe 312 out of the two-stage throttling expansion cooling tank 31, the throttling expansion effect is generated by the variable cross-section characteristics of the conical air inlet pipe 311 and the conical air outlet pipe 312, thereby realizing the two-stage cooling of the air, and simultaneously, in the operation process of the throttling expansion fan 313, gas flows near the double-stage throttling expansion cooling box 31, so that the ventilation condition in the mine tunnel is changed, and the accumulation of gas at the poor ventilation position is effectively avoided; the dust and sludge mixture sliding down to the sewage collecting pipe 3214 along the inner wall of the air flow purifying pipe 3210 falls into the centrifugal cylinder 3231 under the action of gravity, the centrifugal motor 3232 operates and drives the centrifugal power gear 3237 to rotate, so that the hollow gear 3236 rotates to drive the centrifugal cylinder 3231 to rotate, the dust and sludge mixture gradually accumulates on the side of the dust filter screen 3235 under the action of centrifugal force, moisture in the dust and sludge mixture passes through the dust filter screen 3235 and is thrown to the inner side wall of the water collecting cylinder 3230 under the action of centrifugal force, the moisture slides down to the bottom wall along the inner side wall of the water collecting cylinder 3230 under the action of gravity, dust slurry in the sludge mixture is retained in the centrifugal cylinder 3231 due to the blocking of the dust filter screen 3235, when the water circulating pump 3234 operates, water in the water collecting cylinder 3230 respectively flows into the circulating and purifying tank 322 through the water circulating pipe 3233 under the action of pumping pressure of the water circulating pump 34, and when the sewage collecting pump 3241 operates, dust slurry in the centrifuge tube 3231 is pumped into the dirt collection box 324 for storage through the dirt collection pipe 3240 under the pressure action of the dirt collection pump 3241, the dust particle mixture subjected to hydraulic pressure drop treatment is effectively separated by the centrifugal separation assembly 323, water resource recycling is achieved through the action of the water circulation pipe 3233 and the water circulation pump 3234, equipment energy consumption is obviously reduced, water resource waste is reduced, the filtering and purifying device 32 purifies and adsorbs underground coal mine gas through the hydraulic pressure drop mode, the possibility of accidents caused by dust in a mine roadway is obviously reduced, and meanwhile, the construction operation environment in the mine roadway is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a colliery is throttle inflation formula gas sound exchange detection and treatment device for pit which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a positioning frame (1);
the dynamic and static exchange type gas ventilation detection mechanism (2) comprises a dynamic and static exchange type gas detection device (21) and a variable cross-section accelerated ventilation detection device (22), wherein the dynamic and static exchange type gas detection device (21) and the variable cross-section accelerated ventilation detection device (22) are sequentially and fixedly arranged on the side wall of the positioning frame (1) from top to bottom;
the throttling expansion type environment management mechanism (3) comprises a two-stage throttling expansion cooling box (31) and a filtering and purifying device (32), wherein the two-stage throttling expansion cooling box (31) is fixedly arranged on the side wall of the positioning frame (1), the two-stage throttling expansion cooling box (31) is arranged on the side edge of the dynamic and static exchange type gas detection device (21), and the filtering and purifying device (32) is fixedly arranged in the two-stage throttling expansion cooling box (31) in a penetrating manner;
the negative pressure recovery mechanism (4), the negative pressure recovery mechanism (4) is fixedly arranged on the side wall of the positioning frame (1).
2. The underground coal mine throttling expansion type gas dynamic-static exchange detection and treatment device according to claim 1, which is characterized in that: mechanism (4) are retrieved to negative pressure includes negative pressure collection pipeline (41) and storage device (42), negative pressure collection pipeline (41) are fixed to be located locating rack (1) lower wall, storage device (42) are fixed to be located locating rack (1) lateral wall, negative pressure collection pipeline (41) and storage device (42) through connection, locating rack (1) bear frame (11) and stand-type frame (12) including the wall-hanging, the wall-hanging bears frame (11) and is fixed to be located stand-type frame (12) upper wall, wall-hanging (11) lateral wall is located respectively in dynamic and static exchange type gas ventilation detection mechanism (2) and throttle inflation formula environment improvement mechanism (3), bear frame (42) and locate stand-type frame (12) lateral wall.
3. The underground coal mine throttling expansion type gas dynamic-static exchange detection and treatment device according to claim 2, characterized in that: the dynamic and static exchange type gas detection device (21) comprises an airflow concentrated guide hood (211), a gas guide fan (212) and a gas detector (213), wherein the airflow concentrated guide hood (211) and the gas detector (213) are sequentially and fixedly arranged on the side wall of a wall-mounted bearing frame (11) from top to bottom, the gas guide fan (212) is arranged on the side wall of the wall-mounted bearing frame (11), the gas guide fan (212) penetrates through the middle part of the airflow concentrated guide hood (211), the airflow concentrated guide hood (211) comprises a multidirectional airflow bundling hemispherical plate (2110), a bundling pipe (2111) and a gas guide pipe (2112), the gas guide pipe (2112) is fixedly arranged on the side wall of the wall-mounted bearing frame (11), the bundling pipe (2111) is fixedly communicated with the upper end of the gas guide pipe (2112) in a sealing manner, the multidirectional airflow bundling hemispherical plate (2110) is fixedly arranged at the upper end of the bundling pipe (2111) in a sealing manner, the upper wall of the multidirectional airflow bundling hemispherical plate (2110) is provided with a dispersed airflow bundling pipe (2113) in a penetrating mode in a spherical array mode, the gas guide fan (212) is arranged in the middle of the gas guide pipe (2112) in a penetrating mode, and the gas detector (213) is arranged below the gas guide pipe (2112).
4. The underground coal mine throttling expansion type gas dynamic-static exchange detection and treatment device according to claim 3, characterized in that: the variable cross-section accelerated ventilation detection device (22) comprises a variable cross-section airflow acceleration component (221), a pneumatic rotating component (222) and a wind feedback component (223), the variable cross-section airflow acceleration component (221) is fixedly arranged on the side wall of the wall-mounted bearing frame (11), the variable cross-section airflow acceleration component (221) is arranged below the gas detector (213), the pneumatic rotating component (222) is rotatably arranged inside the variable cross-section airflow acceleration component (221), the wind feedback component (223) is fixedly arranged inside the variable cross-section airflow acceleration component (221), the variable cross-section airflow acceleration component (221) comprises an airflow acceleration pipeline (2210) and an airflow acceleration fixing frame (2211), the airflow acceleration fixing frame (2211) is fixedly arranged on the side wall of the wall-mounted bearing frame (11), the airflow acceleration pipeline (2210) is fixedly arranged inside the airflow acceleration fixing frame (2211), airflow acceleration pipeline (2210) both ends are equipped with into wind wide-mouth (2212) and air-out slot (2213) respectively, pnematic rotating assembly (222) include pnematic pivot (2220) and wind cup (2221), pnematic pivot (2220) are rotated and are located airflow acceleration mount (2211) upper wall, wind cup (2221) cyclic annular equidistant array locates pnematic pivot (2220) circumference lateral wall, fixed electricity generation rotor (2222) that is equipped with of pnematic pivot (2220) lower extreme, wind feedback subassembly (223) are including electricity generation stator (2230) and galvanometer (2231), electricity generation stator (2230) are fixed to be located inside airflow acceleration mount (2211), electricity generation stator (2230) are located electricity generation rotor (2222) side, storage device (42) lateral wall is fixed to galvanometer (2231), galvanometer (2231) and electricity generation rotor (2222) electric connection.
5. The underground coal mine throttling expansion type gas dynamic-static exchange detection and treatment device according to claim 4, characterized in that: the double-stage throttling expansion cooling box is characterized in that a conical air inlet pipe (311) penetrates through the side wall equidistant array of the double-stage throttling expansion cooling box (31), a conical air outlet pipe (312) penetrates through the upper wall equidistant array of the double-stage throttling expansion cooling box (31), throttling expansion fans (313) are arranged on the inner side wall equidistant array of the double-stage throttling expansion cooling box (31), and the throttling expansion fans (313) are respectively in through connection with the end part of the conical air inlet pipe (311).
6. The underground coal mine throttling expansion type gas dynamic-static exchange detection and treatment device according to claim 5, characterized in that: the filtering and purifying device (32) comprises a hydraulic pressure drop air flow purifying assembly (321), a circulating purifying water storage tank (322), a centrifugal separating assembly (323) and a sewage collecting tank (324), wherein the hydraulic pressure drop air flow purifying assembly (321) is arranged on the inner side wall of the two-stage throttling expansion cooling tank (31) in an equidistant array, the circulating purifying water storage tank (322) is fixedly arranged on the inner side wall of the two-stage throttling expansion cooling tank (31), the centrifugal separating assembly (323) is fixedly arranged on the inner bottom wall of the two-stage throttling expansion cooling tank (31), the sewage collecting tank (324) is fixedly arranged on the upper wall of the standing type bearing frame (12), the hydraulic pressure drop air flow purifying assembly (321) comprises an air flow purifying pipe (3210), a hydraulic pressure drop nozzle (3211), a hydraulic pressure drop communicating pipe (3212) and a hydraulic pressure drop pump (3213), and two ends of the air flow purifying pipe (3210) are respectively communicated with the output end of the throttling expansion fan (313) and the upper wall of the circulating purifying water storage tank (322), the hydraulic pressure drop nozzle (3211) is arranged on the side wall of the air flow purification pipe (3210) along the bending direction of the axis of the air flow purification pipe (3210), the hydraulic pressure drop communication pipe (3212) is arranged on the side wall of the circulation purification water storage tank (322), the end of the hydraulic pressure drop nozzle (3211) is connected with the side wall of the hydraulic pressure drop communication pipe (3212), the hydraulic pressure drop pump (3213) is fixedly arranged on the side wall of the circulation purification water storage tank (322), the hydraulic pressure drop pump (3213) is arranged on the end of the hydraulic pressure drop communication pipe (3212) near the circulation purification water storage tank (322), the lowest point of the side wall of the air flow purification pipe (3210) is arranged on the bottom of the side wall of the circulation purification water storage tank (322), the circulation purification water storage tank (322) is filled with purified water, the air flow purification pipe (3210) is arranged below the liquid level of the purified water in the circulation purification water storage tank (322), the lower end of the conical air outlet pipe (312) is respectively communicated with the upper wall of the circulating purification water storage tank (322).
7. The underground coal mine throttling expansion type gas dynamic-static exchange detection and treatment device according to claim 6, characterized in that: the centrifugal separation component (323) comprises a water collecting cylinder (3230), a centrifugal cylinder (3231), a centrifugal motor (3232), a water circulating pipe (3233) and a water circulating pump (3234), the water collecting cylinder (3230) is arranged on the bottom wall inside the two-stage throttling expansion cooling box (31) in an equidistant array mode, the centrifugal cylinder (3231) is arranged inside the water collecting cylinder (3230) in a rotating mode, the center of the upper wall of the centrifugal cylinder (3231) is rotatably sleeved at the lower end of the sewage collecting pipe (3214), the centrifugal motor (3232) is fixedly arranged on the bottom wall of the two-stage throttling expansion cooling box (31) in an equidistant array mode, the centrifugal motor (3232) is arranged below the centrifugal cylinder (3231), the water circulating pipe (3233) and the water circulating pump (3234) are fixedly arranged on the side wall inside the two-stage throttling expansion cooling box (31), the lower ends of the water circulating pipe (3233) are respectively communicated with the bottom wall of the water collecting cylinder (3230), and the upper end of the water circulating pipe (3233) is communicated with the side wall of the circulating purification water storage box (322), the water circulating pump (3234) is arranged in the middle of the water circulating pipe (3233) in a penetrating way, the circumferential side wall of the centrifugal cylinder (3231) is provided with a dust filter screen (3235), a hollow gear (3236) is fixedly arranged in the center of the lower wall of the centrifugal cylinder (3231), a centrifugal power gear (3237) is coaxially and fixedly arranged at the output end of the centrifugal motor (3232), the centrifugal power gear (3237) is respectively meshed with the hollow gear (3236), the upper wall of the sewage collection box (324) is provided with a sewage collection pipe (3240) and a sewage collection pump (3241), the lower end of the sewage collecting pipe (3240) is communicated with the upper wall of the sewage collecting box (324), the upper end of the sewage collecting pipe (3240) is rotatably sleeved at the lower end of the hollow gear (3236), the sewage collecting pump (3241) penetrates through the middle lower part of the sewage collecting pipe (3240), and the airflow purifying pipe (3210), the sewage collecting pipe (3214), the centrifugal cylinder (3231), the hollow gear (3236), the sewage collecting pipe (3240) and the sewage collecting box (324) are sequentially arranged in a penetrating manner.
8. The underground coal mine throttling expansion type gas dynamic-static exchange detection and treatment device according to claim 7, characterized in that: pipeline (41) is collected to negative pressure includes trunk line (411), accessory pipeline (412) and solenoid valve (413), trunk line (411) are fixed to be located standing formula and bear frame (12) lateral wall, accessory pipeline (412) are fixed to be located the air current and accelerate mount (2211) upper wall, accessory pipeline (412) lower extreme and trunk line (411) lateral wall through connection, solenoid valve (413) are fixed to be located the air current and accelerate mount (2211) upper wall, solenoid valve (413) run through and locate accessory pipeline (412) upper end, gas guide tube (2112) lower extreme side is located to accessory pipeline (412) upper end, solenoid valve (413) and gas detector (213) electric connection.
9. The underground coal mine throttling expansion type gas dynamic-static exchange detection and treatment device according to claim 8, characterized in that: storage device (42) include negative pressure collection pump (421) and gas storage tank (422), negative pressure collection pump (421) and gas storage tank (422) are fixed respectively and are located standing-type and bear the frame (12) upper wall, trunk line (411) tip and gas storage tank (422) lateral wall through connection, negative pressure collection pump (421) run through the tip of locating trunk line (411) near gas storage tank (422), negative pressure collection pump (421) and solenoid valve (413) electric connection.
10. The underground coal mine throttling expansion type gas dynamic-static exchange detection and treatment device according to claim 9, characterized in that: wall-hanging bears a weight of (11) and keeps away from the fixed wall built-up folded plate (111) that is equipped with of sound exchange type gas ventilation detection mechanism (2) lateral wall symmetry, stand-type bears a weight of (12) upper wall fixed electric putter (121) of standing, wall-hanging bears a weight of (11) and fixes locating electric putter (121) upper end of standing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210183789.3A CN114592915A (en) | 2022-02-28 | 2022-02-28 | Throttling expansion type gas dynamic and static exchange detection and treatment device for underground coal mine |
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| CN202210183789.3A CN114592915A (en) | 2022-02-28 | 2022-02-28 | Throttling expansion type gas dynamic and static exchange detection and treatment device for underground coal mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116464496A (en) * | 2023-05-04 | 2023-07-21 | 淮北工业建筑设计院有限责任公司 | Colliery is gas ventilation purifier in pit based on intelligent monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116464496A (en) * | 2023-05-04 | 2023-07-21 | 淮北工业建筑设计院有限责任公司 | Colliery is gas ventilation purifier in pit based on intelligent monitoring |
| CN116464496B (en) * | 2023-05-04 | 2023-10-03 | 淮北工业建筑设计院有限责任公司 | Colliery is gas ventilation purifier in pit based on intelligent monitoring |
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