A cooling and dehumidification system for coal mine fully mechanized mining working face support equipment

Abstract

The present invention discloses a cooling and dehumidifying system for supporting equipment of a coal mine fully-mechanized mining working face, comprising an air compressor, wherein the compressed air outlet of the air compressor is connected to the end hydraulic support of the working face through a high-pressure hose arranged in the tunnel, and then connected to the middle support through a multi-pass block on the end hydraulic support, and finally connected to the end support; the cooling and dehumidifying system comprises a centralized spraying device, a long-line spraying device, and a short-line spraying device, wherein the centralized spraying device is arranged below the middle of the top beam of the hydraulic support, and the long-line spraying device and the short-line spraying device surround the centralized spraying device. The air compressor is arranged on the ground of the mine or at a place far away from the mine. The local temperature and humidity near the supporting equipment of the coal mine fully-mechanized mining working face can be reduced; the body temperature of the staff of the supporting equipment of the coal mine fully-mechanized mining working face can be reduced, and the work efficiency can be improved.

Description

Technical Field

[0001] The invention relates to a coal mine fully-mechanized mining working face support equipment (or: coal mine fully-mechanized mining working face hydraulic support), and in particular to a coal mine fully-mechanized mining working face support equipment cooling and dehumidification system. Background Art

[0002] With the improvement of technology and the gradual depletion of shallow-buried coal resources in China, the mining depth of coal mines has been continuously increased. At present, the average mining depth is increasing at a rate of 20-30 meters per year, and it is now developing towards a trend of kilometer-deep wells. Some mines have exceeded 1,000 meters in depth. The deeper the coal mine is mined, the higher the ground temperature will be. According to measurement data from all over the world, the global average geothermal gradient is about 3℃ / 100m, that is, for every 100 meters increase in mining depth, the ground temperature increases by about 3℃ on average. According to research, the main heat sources underground in coal mines are heat from surrounding rocks of shafts and tunnels, heat dissipation from electromechanical equipment, heat from coal oxidation or spontaneous combustion, heat from explosive explosion during blasting, and so on.

[0003] At present, the industry has put forward specific requirements for the prevention and control of heat hazards in coal mines:

[0004] When the air temperature of the mining face exceeds 26°C and the electromechanical equipment chamber exceeds 30°C, the working hours of the staff at the over-temperature location must be shortened and high-temperature health care treatment must be given. When the air temperature of the mining face exceeds 30°C and the electromechanical equipment chamber exceeds 34°C, the operation must be stopped. When designing new, renovated and expanded mines, the mine wind temperature must be predicted and calculated, and there must be cooling facilities at over-temperature locations. When there is heat damage in underground coal mines, non-mechanical refrigeration and cooling measures such as ventilation should be adopted. When the ambient temperature requirements cannot be met, mechanical refrigeration and cooling measures should be adopted.

[0005] It can be seen that the temperature of the coal mine fully-mechanized working face will not only affect the work efficiency of the staff, but also affect the production efficiency and progress of the coal mine. The humidity of the coal mine fully-mechanized working face will affect the body temperature of the staff. As the humidity increases, the body temperature will also rise, which will also affect the work efficiency of the staff.

[0006] After reviewing domestic and foreign information, no coal mine comprehensive mining working face support equipment with cooling and dehumidification systems was found.

[0007] In view of this, the present invention is proposed. Summary of the invention

[0008] In order to improve the working environment of workers in coal mine comprehensive mining working faces, reduce local environmental temperature and humidity, and ultimately reduce the workers' perceived temperature, the purpose of the present invention is to provide a cooling and dehumidification system for coal mine comprehensive mining working face support equipment to solve the above-mentioned technical problems existing in the prior art.

[0009] The objective of the present invention is achieved through the following technical solutions:

[0010] The cooling and dehumidifying system for supporting equipment of a fully mechanized coal mining working face of the present invention comprises an air compressor, the compressed air outlet of the air compressor is connected to the end hydraulic support of the working face through a high-pressure hose arranged in the tunnel, and then connected to the transition hydraulic support, the middle hydraulic support through a multi-pass block on the end hydraulic support, and finally connected to the hydraulic support at the end;

[0011] The hydraulic support is provided with a cooling and dehumidifying system, and the cooling and dehumidifying system includes compressed air spraying equipment.

[0012] Compared with the prior art, the cooling and dehumidifying system for coal mine comprehensive mining working face support equipment provided by the present invention can reduce the local temperature near the coal mine comprehensive mining working face support equipment; can reduce the local humidity near the coal mine comprehensive mining working face support equipment; can reduce the body temperature of the workers of the coal mine comprehensive mining working face support equipment and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the planar structure of the working face pipeline arrangement of the cooling and dehumidifying system for the fully mechanized mining working face support equipment of a coal mine provided by an embodiment of the present invention;

[0014] Figure 2 It is a schematic diagram of a cooling and dehumidifying system for a fully mechanized coal mining face support equipment according to an embodiment of the present invention;

[0015] Figure 3b It is a side view schematic diagram of a coal mine fully mechanized mining working face support equipment according to an embodiment of the present invention.

[0016] Figure 3a for Figure 3b H-direction schematic diagram.

[0017] In the figure:

[0018] 1-air compressor; 2-high pressure hose; 3-pipeline accessories; 4-multi-pass block on hydraulic support; 5-end hydraulic support; 6-transition hydraulic support; 7-intermediate hydraulic support;

[0019] 10-centralized spraying device; 11-control cable; 12-cooling and dehumidification system controller; 13-personnel positioning receiver; 14-hydraulic support controller; 15-coal mine central control room, 16-compressed air distributor; 17-long-line spraying device; 18-short-line spraying device; 19-electric ball valve, 20-filter, 21-multi-pass block on hydraulic support; 22-high-pressure hose for compressed air delivery between hydraulic supports; 23-high-pressure hose and accessories for cooling and dehumidification system; 24-manual ball valve;

[0020] 31- hydraulic support; 32- shielding beam of hydraulic support; 33- top beam of hydraulic support. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, which does not constitute a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0022] First, the terms that may be used in this article are explained as follows:

[0023] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y means both “X” or “Y” and “X and Y”.

[0024] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0025] The term "consisting of..." means excluding any technical feature elements not explicitly listed. If this term is used in a claim, it will make the claim closed, so that it does not contain technical feature elements other than the technical feature elements explicitly listed, except for the conventional impurities related to them. If this term only appears in a clause of a claim, it only limits the elements explicitly listed in the clause, and the elements recorded in other clauses are not excluded from the overall claim.

[0026] Unless otherwise specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0027] The orientation or position relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience and simplification of description, and do not explicitly or implicitly indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation of this document.

[0028] The contents not described in detail in the examples of the present invention belong to the prior art known to professionals in the field. If no specific conditions are specified in the examples of the present invention, the conditions are carried out according to the conventional conditions in the field or the conditions recommended by the manufacturer. If the manufacturer is not specified in the reagents or instruments used in the examples of the present invention, they are all conventional products that can be purchased commercially.

[0029] The cooling and dehumidifying system for supporting equipment of a fully mechanized coal mining working face of the present invention comprises an air compressor, the compressed air outlet of the air compressor is connected to the end hydraulic support of the working face through a high-pressure hose arranged in the tunnel, and then connected to the transition hydraulic support, the middle hydraulic support through a multi-pass block on the end hydraulic support, and finally connected to the hydraulic support at the end;

[0030] The hydraulic support is provided with a cooling and dehumidifying system, and the cooling and dehumidifying system includes compressed air spraying equipment.

[0031] The cooling and dehumidifying system includes a manual ball valve, a filter and a compressed air distributor which are connected in sequence. The compressed air distributor distributes the air source to the corresponding actuator unit of the electric ball valve, and the actuator unit of the electric ball valve then delivers the corresponding air source to the corresponding spraying equipment.

[0032] The spraying equipment includes any one or more of the following: a centralized spraying device, a long-line spraying device, and a short-line spraying device.

[0033] The electric ball valve is connected to the cooling and dehumidification system controller through a control cable, and the cooling and dehumidification system controller is arranged on the hydraulic support and connected to the personnel positioning receiver and the hydraulic support controller;

[0034] The hydraulic support controller is connected to the coal mine central control room signal.

[0035] The centralized spraying device is arranged below the middle part of the top beam of the hydraulic support, and the long-line spraying device and the short-line spraying device surround the centralized spraying device.

[0036] The air compressor is arranged on the ground of the mine or at a place far away from the mine.

[0037] In summary, it can be seen that the cooling and dehumidification system for coal mine comprehensive mining working face support equipment of the embodiment of the present invention can reduce the local temperature near the coal mine comprehensive mining working face support equipment; can reduce the local humidity near the coal mine comprehensive mining working face support equipment; can reduce the body temperature of the workers of the coal mine comprehensive mining working face support equipment and improve work efficiency.

[0038] In order to more clearly demonstrate the technical solution and technical effects provided by the present invention, the embodiments of the present invention are described in detail with specific embodiments below.

[0039] Example 1

[0040] like Figure 1 As shown:

[0041] The principle adopted by the present invention is:

[0042] Compressed air is a common underground power in coal mines. It has the characteristics of expansion and heat absorption, so it can be used to improve the local environment underground and achieve the effect of lower temperature and humidity than the surrounding environment. The air compressor as the source of compressed air can be set on the ground or even far away from the mine. It is not restricted by the explosion-proof requirements of coal mines. The compressed air can be transported using high-pressure hoses commonly used in coal mines, which are easy to obtain. Compressed air has no risk of explosion and heat and fire, and will not introduce additional heat sources when cooling and dehumidifying.

[0043] Figure 1 This is a plan view of the working face pipeline layout of the present invention "a cooling and dehumidifying system for supporting equipment of a fully-mechanized coal mining working face", consisting of Figure 1 It can be seen that the compressed air required by the cooling and dehumidification system of the coal mine fully-mechanized working face support equipment is provided by an air compressor. The air compressor can be set on the ground, or even far away from the mine, and is not subject to the restrictions of the underground explosion-proof requirements of the coal mine. The compressed air is transported to the end bracket of the working face by the pipeline arranged in the tunnel, and then connected in series through the multi-pass block and the inter-frame pipe on the bracket, and finally transported to the last bracket.

[0044] Figure 2 This is the principle diagram of the cooling and dehumidification system of the present invention "a cooling and dehumidification system for supporting equipment of a fully mechanized coal mining working face", which Figure 2 It can be found that after the compressed air is transported to the corresponding support through the hydraulic support inter-frame hose, it is transported to the compressed air distributor through the manual ball valve and filter using a high-pressure hose, wherein the manual ball valve can play the role of switching / adjusting the air source of the cooling and dehumidification system, and the filter can reduce the impurity content in the compressed air to protect the subsequent cooling and dehumidification system equipment; the compressed air distributor distributes the air source to the corresponding electric ball valve actuator unit, and the electric ball valve actuator unit then transports the corresponding air source to the corresponding spraying equipment to perform the corresponding compressed air spraying operation; in Figure 2 What is shown in the figure is a device with 4 electric ball valve actuator units. Each actuator unit can independently execute switching actions. When no signal is received from the cooling and dehumidification system controller, the actuator unit is in a normally closed state; the cooling and dehumidification system controller can receive personnel positioning information sent by the personnel positioning receiver, independently judge and execute spraying operations, and it can also receive information sent by the hydraulic support controller or the information sent by the coal mine central control room through the hydraulic support controller to perform corresponding actions.

[0045] Figure 3a , Figure 3b This is a schematic diagram of the installation position of the compressed air spray device of the present invention "a cooling and dehumidifying system for supporting equipment of a fully mechanized coal mining working face". Figure 3a , Figure 3b It can be found that the cooling and dehumidification system of the coal mine fully mechanized working face support equipment consists of two parts. One part is the linear spray device surrounding the centralized spray device, which forms an air curtain, which is then relatively isolated from the surrounding environment to form a relatively isolated space; the centralized spray device uses compressed air to concentrate compressed air on the coal mine workers entering this relatively isolated space to achieve cooling and dehumidification. Due to the role of the centralized spray device, the air pressure in this relatively isolated space is greater than the ambient air pressure, and the gas in the space mainly flows to the outside of the environment. The heat and humidity factors of the external environment are difficult to affect this space, thereby forming a small area with lower temperature and humidity than the surrounding environment.

[0046] The present invention adopts compressed air as the power source and is suitable for the cooling and dehumidifying system of the fully mechanized mining working face supporting equipment in a coal mine; a combination of linear and centralized spraying devices is adopted to respectively achieve good effects of local approximate isolation and cooling and dehumidifying; it can receive personnel positioning information sent by a personnel positioning receiver, independently judge and execute spraying operations, and can also receive information sent by a hydraulic support controller or information sent by the coal mine central control room through the hydraulic support controller to perform corresponding actions.

[0047] Beneficial effects brought about by the technical solution of the present invention;

[0048] The present invention "a cooling and dehumidifying system for supporting equipment of coal mine fully-mechanized mining working face" forms a positive pressure space which is partially isolated from the surrounding environment at the hydraulic support equipment, and cools and dehumidifies the space by compressed air, so as to form a small area with lower temperature and humidity than the surrounding environment. The system can reduce the body temperature of the workers of supporting equipment of coal mine fully-mechanized mining working face and improve work efficiency. This invention is worth promoting vigorously.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims. The information disclosed in the background technology section of this article is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or in any form that the information constitutes prior art known to those skilled in the art.

Claims

1. A cooling and dehumidifying system for supporting equipment of a fully-mechanized mining working face in a coal mine, characterized in that: It includes an air compressor, the compressed air outlet of the air compressor is connected to the end hydraulic support of the working surface through a high-pressure hose arranged in the tunnel, and then connected to the transition hydraulic support, the middle hydraulic support through a multi-pass block on the end hydraulic support, and finally connected to the hydraulic support at the end; The hydraulic support is provided with a cooling and dehumidifying system, and the cooling and dehumidifying system includes a compressed air spraying device; The cooling and dehumidifying system comprises a manual ball valve, a filter and a compressed air distributor connected in sequence, wherein the compressed air distributor distributes the air source to the corresponding actuator of the electric ball valve, and the actuator of the electric ball valve then delivers the corresponding air source to the corresponding spraying equipment; The spraying equipment includes: a centralized spraying device, a long-line spraying device, and a short-line spraying device; The electric ball valve is connected to the cooling and dehumidification system controller through a control cable, and the cooling and dehumidification system controller is arranged on the hydraulic support and connected to the personnel positioning receiver and the hydraulic support controller; The hydraulic support controller is connected to the coal mine central control room signal; The centralized spraying device is arranged below the middle part of the top beam of the hydraulic support, and the long-line spraying device and the short-line spraying device surround the centralized spraying device.

2. The cooling and dehumidifying system for supporting equipment of coal mine fully mechanized mining working face according to claim 1 is characterized in that: The air compressor is arranged on the ground of the mine or at a place far away from the mine.

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