Mine mining underground ventilation system

Abstract

The invention discloses a mining underground ventilation system which comprises ventilation equipment, an underground air environment sensor, a water storage tank and a filter box, the ventilation equipment comprises an air inlet cavity and an air outlet cavity, and an exhaust fan communicated with the air inlet cavity and the air outlet cavity is connected to the middle of the ventilation equipment; a purified gas inlet and a waste gas inlet which are communicated with the air inlet cavity are respectively formed in two sides of the bottom of the ventilation equipment; and a purified gas outlet and a waste gas outlet which are communicated with the air outlet cavity are respectively formed in two sides of the top of the ventilation equipment. Compared with the prior art, the integrated ventilation device has the advantages that the integrated ventilation device is matched with an electric push rod to open a corresponding air opening, so that integrated air inlet and outlet ventilation operation can be achieved, control is facilitated, and the cost of the ventilation device is reduced; 2, the air inlet and the air outlet are filtered by one filter box through the integrally designed filter box, so that unified management is facilitated, and the cost is reduced; and 3, the humidity of the underground environment can be controlled through cooperation of a water storage tank and a sprayer and ventilation equipment.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation systems, and in particular to an underground mining ventilation system. Background Art

[0002] A mine is a general term for the shafts, chambers, equipment, ground buildings and structures that form the underground coal mine production system. In the construction environment of a mine, there will be a large amount of dust and harmful gases floating in the air, which is very harmful to the workers;

[0003] In the prior art, the ventilation method in underground mining shafts generally has two ventilation systems to ensure ventilation effect. One is an outward exhaust device to extract dust and harmful gases, and the other is an inward exhaust device to extract clean gas for air intake. The two systems are generally set up separately and then controlled independently, which makes the control relatively complicated, with low intelligence and high overall equipment cost. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an integrated and conveniently controlled underground mining ventilation system in view of the deficiencies raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a mining underground ventilation system, comprising ventilation equipment, an underground air environment sensor, a water storage tank and a filter box, the ventilation equipment comprising an air inlet chamber and an air outlet chamber separated from each other, an exhaust fan connected to the air inlet chamber and the air outlet chamber is connected in the middle of the ventilation equipment, a clean air inlet and a waste air inlet connected to the air inlet chamber are respectively provided on both sides of the bottom of the ventilation equipment, a clean air outlet and a waste air outlet connected to the air outlet chamber are respectively provided on both sides of the top of the ventilation equipment, and a first gas filter is connected to the side of the air outlet chamber close to the clean air outlet;

[0006] The clean air inlet and the waste air outlet are respectively connected with an air inlet pipe and an air outlet pipe, and the air inlet pipe and the air outlet pipe are both connected with the filter box;

[0007] The clean air inlet, waste air inlet, clean air outlet and waste air outlet are all hingedly provided with sealed door covers on the inner sides, the ventilation equipment is hingedly provided with an electric push rod matching the sealed door covers on the inner side, and the power end of the electric push rod is hingedly provided with the inner side of the sealed door cover.

[0008] Furthermore, a clean air chamber, a first filter chamber and a second filter chamber are provided in the filter box from left to right, the air inlet pipe is connected to the clean air chamber, the air outlet pipe is connected to the first filter chamber, a second gas filter is connected between the clean air chamber, the first filter chamber and the second filter chamber, and an air inlet and outlet connected to the second filter chamber are provided on the outside of the filter box, so as to facilitate the integrated filter box to filter the inlet and outlet air.

[0009] Furthermore, a second maintenance and cleaning sealing door connected to the first filter chamber is connected to one side of the filter box, a first maintenance and cleaning sealing door is connected to the outer side of the air inlet and outlet, and an air inlet with a filter is connected to the first maintenance and cleaning sealing door, which is convenient for regular processing of filtered materials and pre-filtration of air intake.

[0010] Furthermore, the first gas filter and the second gas filter are both provided with a first support net and a second support net on both sides and a filter cloth cover clamped inside, so as to facilitate the operation of filtering fine dust.

[0011] Furthermore, a vibration motor is connected in the air outlet chamber between the clean air outlet and the first gas filter, and a vibration cam cooperating with the first gas filter is connected to the power end of the vibration motor to facilitate vibration dust removal operations on the first gas filter.

[0012] Furthermore, a water pump connected to the water tank is disposed on the top of the water tank, and a water pipe is connected to the water pump. The water pipe extends to the outside of the ventilation equipment and is connected to a water distribution pipe. The water distribution pipe is connected to a plurality of spray pipes extending between the clean air outlet and the first gas filter element to facilitate atomization humidification operations.

[0013] Furthermore, the water pump, exhaust fan and electric push rod are electrically connected to the air environment sensor under the mine, which is convenient for

[0014] After adopting the above structure, a mining underground ventilation system of the present invention has the following advantages: After adopting this system, the present invention has the following advantages:

[0015] 1. Through the integrated design of ventilation equipment, the electric push rod is used to open the corresponding air outlet, so as to realize the integrated air inlet and outlet ventilation operation, which is convenient for control and reduces the cost of ventilation equipment;

[0016] 2. Through the integrated filter box design, the inlet and outlet air are filtered through one filter box, which facilitates unified management and reduces costs;

[0017] 3. The humidity of the underground environment can be controlled by using water tanks and sprayers in conjunction with ventilation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first structural schematic diagram of an underground mining ventilation system of the present invention.

[0019] Figure 2 It is a second structural schematic diagram of an underground mining ventilation system of the present invention.

[0020] Figure 3 It is a third structural schematic diagram of an underground mining ventilation system of the present invention.

[0021] Figure 4 The present invention is a schematic diagram of the side cross-sectional structure of a ventilation device of an underground mining ventilation system.

[0022] Figure 5 The present invention is a schematic diagram of the side cross-sectional structure of a filter box of a ventilation system for underground mining.

[0023] Figure 6 The present invention is a schematic diagram of the side structure of a gas filter element of a mining underground ventilation system.

[0024] As shown in the figure: 1. Ventilation equipment; 2. Underground air environment sensor; 3. Water storage tank; 4. Filter box; 5. Air inlet chamber; 6. Air outlet chamber; 7. Exhaust fan; 8. Clean air inlet; 9. Waste air inlet; 10. Waste air outlet; 11. Clean air outlet; 12. First gas filter; 13. Sealed door cover; 14. Electric push rod; 15. Clean air chamber; 16. First filter chamber; 17. Second filter chamber; 18. Inlet pipe; 19. Outlet pipe; 20. Inlet and outlet; 21. Second gas filter; 22. First maintenance and cleaning sealed door; 23. Air inlet with filter; 24. Second maintenance and cleaning sealed door; 25. Vibration motor; 26. Vibration cam; 27. Water pump; 28. Water guide pipe; 29. ​​Water distribution pipe; 30. Spray pipe; 31. First support net; 32. Second support net; 33. Filter cloth cover. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] Combined with Figure 1-6 A mining underground ventilation system includes ventilation equipment 1, an underground air environment sensor 2, a water storage tank 3 and a filter box 4. The underground air environment sensor 2 is a common multifunctional environmental sensing device. Different functions are selected according to needs, such as real-time monitoring of dust, harmful gases, air humidity, internal carbon dioxide and oxygen concentrations, etc. This is a common environmental monitoring sensor, so it is not described in detail. The ventilation equipment 1 includes an air inlet chamber 5 and an air outlet chamber 6 separated from each other. The ventilation equipment 1 is connected in the middle with an exhaust fan 7 connecting the air inlet chamber 5 and the air outlet chamber 6. The bottom of the ventilation equipment 1 is divided into two sides. A clean air inlet 8 and a waste gas inlet 9 connected to the air inlet chamber 5 are separately provided; a clean air outlet 11 and a waste gas outlet 10 connected to the air outlet chamber 6 are respectively provided on both sides of the top of the ventilation device 1; a first gas filter 12 is connected to the side of the air outlet chamber 6 close to the clean air outlet 11; a sealing door cover 13 is hingedly provided on the inner sides of the clean air inlet 8, the waste gas inlet 9, the clean air outlet 11 and the waste gas outlet 10; an electric push rod 14 matching the sealing door cover 13 is hingedly provided on the inner side of the ventilation device 1; and a power end of the electric push rod 14 is hingedly provided to the inner side of the sealing door cover 13.

[0030] In the specific implementation, there are two control modes. Embodiment 1 is: when the air environment sensor 2 in the mine detects that the air needs to extract dust gas or harmful gas in the mine, the exhaust fan 7 is started to extract gas from the air inlet chamber 5 to the air outlet chamber 6, and the electric push rod 14 corresponding to the exhaust air inlet 9 and the exhaust air outlet 10 is synchronously started to open the corresponding sealing door cover 13, so that the dust gas or harmful gas in the mining well can be extracted out;

[0031] Embodiment 2 is: when the air environment sensor 2 in the mine detects that the air does not need to discharge dust and harmful gases, the exhaust fan 7 is started to extract gas from the air inlet chamber 5 to the air outlet chamber 6, and at the same time, the electric push rods 14 corresponding to the clean air inlet 8 and the clean air outlet 11 are synchronously started to open the corresponding sealed door covers 13, so that fresh gas filtered from the outside can be frequently pumped into the mining operation.

[0032] Combined with Figure 4-6 The clean air inlet 8 and the exhaust gas outlet 10 are respectively connected with an air inlet pipe 18 and an air outlet pipe 19, and the air inlet pipe 18 and the air outlet pipe 19 are both connected with the filter box 4. A clean air chamber 15, a first filter chamber 16 and a second filter chamber 17 are arranged in sequence from left to right in the filter box 4. The air inlet pipe 18 is connected with the clean air chamber 15, and the air outlet pipe 19 is connected with the first filter chamber 16. A second gas filter 21 is connected between the clean air chamber 15, the first filter chamber 16 and the second filter chamber 17. An air inlet and outlet 20 connected with the second filter chamber 17 is arranged on the outside of the filter box 4. A second maintenance and cleaning sealing door 24 connected with the first filter chamber 16 is connected on one side of the filter box 4. A first maintenance and cleaning sealing door 22 is connected on the outside of the air inlet and outlet 20. The first maintenance and cleaning sealing door 22 is connected to an air inlet 23 with a filter, that is, in actual operation, when the ventilation equipment 1 extracts dust and introduces it into the first filter chamber 16 of the filter box 4 through the outlet pipe 19, the filtering effect can be achieved through the second gas filters 21 on both sides, so that it can be discharged through the air inlet and outlet 20. When it is necessary to extract clean air, the gas is filtered through two layers of second gas filters 21 to ensure the entry of clean air. However, in actual conditions, if there is no requirement for the external air environment, the second gas filter 21 between the first filter chamber 16 and the second filter chamber 17 can be reduced. At the same time, in actual conditions, if the dust concentration in the well is high for a long time, the cleaning work of the first filter chamber 16 and the second filter chamber 17 is relatively frequent to ensure the normal use of the filter box 4.

[0033] The first gas filter 12 and the second gas filter 21 are both composed of a first support net 31 and a second support net 32 ​​arranged on both sides and a filter cloth cover 33 clamped on the inner side. The structure of clamping the filter cloth cover 33 by the first support net 31 and the second support net 32 ​​is the simplest structure for filtering dust. During the specific implementation, if there are other filtering requirements, such as the need to filter harmful gases, etc., the second gas filter 21 can be increased with an adsorbent, such as activated carbon adsorption, alkaline water adsorption, etc.

[0034] A vibration motor 25 is connected to the air outlet chamber 6 between the clean air outlet 11 and the first gas filter 12. The power end of the vibration motor 25 is connected to a vibration cam 26 that cooperates with the first gas filter 12. Because the first gas filter 12 is permanently arranged in the ventilation equipment 1 and it is inconvenient to clean it regularly, when the operation of extracting dust and harmful gases is started, the vibration motor 25 is started synchronously to oscillate the first gas filter 12, thereby ensuring that the dust attached to the first gas filter 12 is discharged together with the airflow.

[0035] A water pump 27 connected to the water tank 3 is connected to the top of the water tank 3. The water pump 27 is connected to a water pipe 28. The water pipe 28 extends to the outside of the ventilation equipment 1 and is connected to a water distribution pipe 29. The water distribution pipe 29 is connected to a plurality of spray pipes 30 extending between the clean air outlet 11 and the first gas filter 12. When working underground, air humidity is also required to ensure working comfort. Therefore, by setting the spray pipe 30, the air humidity is increased while introducing clean gas. When setting this structure, it is necessary to ensure that an air humidity sensor is provided in the mine air environment sensor 2 to facilitate the sensing setting.

[0036] The water pump 27, exhaust fan 7 and electric push rod 14 are electrically connected to the underground air environment sensor 2. At the same time, an external control cabinet and a control system are required to coordinate and control the operation of the water pump 27, exhaust fan 7, electric push rod 14 and the underground air environment sensor 2. The control cabinet can adopt PLC control, which is a common circuit control, so it will not be elaborated.

[0037] The present invention and its implementation methods are described above, and such description is not restrictive, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by it, and does not deviate from the purpose of the invention, and does not creatively design a structure and implementation method similar to the technical solution, they should all fall within the protection scope of the present invention.

Claims

1. A ventilation system for underground mining, comprising ventilation equipment (1), an underground air environment sensor (2), a water storage tank (3) and a filter box (4), characterized in that: The ventilation device (1) comprises an air inlet chamber (5) and an air outlet chamber (6) separated into upper and lower parts; an exhaust fan (7) connected to the air inlet chamber (5) and the air outlet chamber (6) is provided in the middle of the ventilation device (1); a clean air inlet (8) and a waste air inlet (9) connected to the air inlet chamber (5) are provided on both sides of the bottom of the ventilation device (1); a clean air outlet (11) and a waste air outlet (10) connected to the air outlet chamber (6) are provided on both sides of the top of the ventilation device (1); a first gas filter (12) is connected to one side of the air outlet chamber (6) close to the clean air outlet (11); The clean air inlet (8) and the waste air outlet (10) are respectively connected with an air inlet pipe (18) and an air outlet pipe (19), and the air inlet pipe (18) and the air outlet pipe (19) are both connected with the filter box (4); The clean air inlet (8), the waste air inlet (9), the clean air outlet (11) and the waste air outlet (10) are all hingedly provided with a sealed door cover (13) on the inner side, and the ventilation device (1) is hingedly provided with an electric push rod (14) that cooperates with the sealed door cover (13) on the inner side, and the power end of the electric push rod (14) is hingedly provided with the inner side of the sealed door cover (13).

2. A mining underground ventilation system according to claim 1, characterized in that: The filter box (4) is provided with a clean air chamber (15), a first filter chamber (16) and a second filter chamber (17) from left to right in sequence; the air inlet pipe (18) is connected to the clean air chamber (15); the air outlet pipe (19) is connected to the first filter chamber (16); second gas filters (21) are connected between the clean air chamber (15), the first filter chamber (16) and the second filter chamber (17); and an air inlet and outlet (20) connected to the second filter chamber (17) is provided on the outside of the filter box (4).

3. A mining underground ventilation system according to claim 2, characterized in that: A second maintenance and cleaning sealing door (24) communicating with the first filter chamber (16) is connected to one side of the filter box (4); a first maintenance and cleaning sealing door (22) is connected to the outside of the air inlet and outlet (20); and an air inlet (23) with a filter is connected to the first maintenance and cleaning sealing door (22).

4. A mining underground ventilation system according to claim 2, characterized in that: The first gas filter (12) and the second gas filter (21) are both provided with a first support net (31) and a second support net (32) on both sides and a filter cloth cover (33) clamped inside.

5. The underground mining ventilation system according to claim 1, characterized in that: A vibration motor (25) is connected to the air outlet cavity (6) between the clean air outlet (11) and the first gas filter (12), and a vibration cam (26) matching the first gas filter (12) is connected to the power end of the vibration motor (25).

6. A mining underground ventilation system according to claim 1, characterized in that: The top of the water storage tank (3) is connected to a water pump (27) which is in communication with the water storage tank (3); the water pump (27) is connected to a water guide pipe (28); the water guide pipe (28) extends to the outside of the ventilation device (1) and is connected to a water distribution pipe (29); the water distribution pipe (29) is connected to a plurality of spray pipes (30) which extend between the clean air outlet (11) and the first gas filter (12).

7. The underground mining ventilation system according to claim 1, characterized in that: The water pump (27), the exhaust fan (7) and the electric push rod (14) are electrically connected to the underground air environment sensor (2).

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