Automatic underground cooling device for metal mine

Abstract

The utility model discloses a metal mine underground automatic cooling device, which relates to the technical field of metal mine cooling, and comprises a refrigeration box, one side of the refrigeration box is provided with an air port, an electric grid is arranged in the air port, one side of the refrigeration box is fixedly connected with a connecting frame, one side of the connecting frame is fixedly connected with a cooling pipe, and the other side of the connecting frame is fixedly connected with an air inlet. The side, away from the connecting frame, of the cooling pipe is fixedly connected with an air inlet pipe, and an air inlet is formed in the side wall of the air inlet pipe. The cleaning frame capable of rotating along with operation of equipment is arranged at the air inlet, dust or metal scraps blocked at a filter screen of the air inlet are subjected to contact cleaning treatment, the problem that the air inlet is blocked by the dust or the metal scraps is avoided, meanwhile, the cooling pipe extends into the storage box, and the cooling efficiency is improved. The cooling water in the storage box is cooled, so that the sucked air can be pre-cooled when passing through the cooling pipe, the suction temperature of the air is reduced, and the refrigeration pressure of the refrigeration equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal mine cooling, in particular to an automatic cooling device for underground metal mines. Background Art

[0002] In underground metal mines, as the mining depth continues to increase, the thermal effects of geothermal gradients, heat dissipation from mechanical equipment, and heat dissipation from workers cause the temperature in underground workplaces to continue to rise, seriously interfering with the work of mine workers and mine equipment.

[0003] The existing cooling method in metal mines is to use a large refrigeration and cooling system to cool the underground air. Through air circulation and heat exchange, the temperature inside the metal mine can be gradually reduced.

[0004] However, when the existing large-scale refrigeration and cooling equipment is working inside a mine, since the metal mine contains a lot of dust and metal debris, when the refrigeration equipment inhales air in the mine, dust and metal debris will follow into the equipment. The metal debris will affect the normal operation and service life of the equipment. When the air inlet is filtered through the filter, the air inlet needs to be cleaned regularly, resulting in affected air intake and equipment working efficiency. At the same time, the existing large-scale refrigeration equipment does not have the function of pre-cooling the air when inhaling air, resulting in a high temperature of the inhaled air, which increases the refrigeration pressure of the refrigeration equipment. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an automatic cooling device for underground metal mines, which solves the problems mentioned in the background art.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] 18. The automatic cooling device for underground metal mines as claimed in claim 17, wherein the cooling box has an air outlet on one side thereof, an electric grid is provided in the air outlet, a connecting frame is fixedly connected to one side of the cooling box, a cooling pipe is fixedly connected to one side of the connecting frame, an air inlet is fixedly connected to the cooling pipe on a side away from the connecting frame, an air inlet is provided on the side wall of the air inlet pipe, a cover plate is provided on one side of the air inlet pipe, a rotating shaft is passed through the cooling pipe for rotation, a storage box is fixedly connected to one side of the cooling pipe, a cooling pipe is passed through the cooling box, and one end of the cooling pipe away from the cooling box is fixedly connected to the storage box, two symmetrically arranged cleaning racks are provided on one side of the cover plate, a traction mechanism for rotating and pulling the cleaning rack is provided on one side of the cover plate, and a driving mechanism for driving the traction mechanism is provided on the side of the cover plate.

[0008] In order to achieve the contact between the cleaning rack and the filter screen at the air inlet and the sliding contact cleaning, the traction mechanism is provided, which includes a support frame fixedly connected to one side of the cover plate. A gear ring is rotatably connected to one side of the support frame. The gear ring is fixedly connected to the cleaning rack, and the gear ring is rotatably sleeved on the side wall of the air inlet pipe.

[0009] In order to enable the cleaning rack to be in a low-speed state during operation, the driving mechanism includes a driving gear fixedly connected to the side wall of the rotating shaft. A rotating gear is rotatably connected to one side of the cover plate. The rotating gear meshes with the driving gear, the rotating gear meshes with the gear ring, and the transmission ratio of the driving gear to the rotating gear is 1:3.

[0010] In order to improve the cleaning quality and efficiency of the cleaning rack for the dust and metal debris at the filter screen, a cleaning brush is provided on one side of the cleaning rack close to the air inlet. A filter screen is arranged in the air inlet, and the cleaning brush is slidably connected to the filter screen.

[0011] Compared with the prior art, the present utility model has the following beneficial effects: By setting structures such as an air inlet pipe, an air inlet, a filter screen, and a cleaning rack, and by arranging a cleaning rack that can rotate following the operation of the device at the air inlet, the dust or metal debris blocked at the filter screen of the air inlet is subjected to contact cleaning treatment, avoiding the problem of blockage of the air inlet by dust or metal debris. At the same time, by extending the cooling pipe into the storage tank, the cooling water in the storage tank is cooled, and the inhaled air can be pre-cooled when passing through the cooling pipe, reducing the inhalation temperature of the air and reducing the refrigeration pressure of the refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural view of the present utility model Figure 1 ;

[0013] Figure 2 is a schematic structural view of the present utility model Figure 2 ;

[0014] Figure 3 is a front view of the base of the present utility model.

[0015] Reference numerals: 1, refrigeration box; 2, air outlet; 3, electric grid; 4, connecting frame; 5, cooling pipe; 6, storage tank; 7, connecting pipe; 8, air inlet; 9, cover plate; 10, rotating shaft; 11, driving gear; 12, rotating gear; 13, support frame; 14, gear ring; 15, cleaning rack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0017] AsFigure 1 As shown in the figure, the utility model provides an automatic temperature reduction device for underground metal mines, which includes a refrigeration box 1. One side of the refrigeration box 1 is provided with an air outlet 2, and an electric grid 3 is arranged in the air outlet 2. One side of the refrigeration box 1 is fixedly connected with a connecting frame 4, and one side of the connecting frame 4 is fixedly connected with a cooling pipe 5. The side of the cooling pipe 5 far away from the connecting frame 4 is fixedly connected with an air inlet pipe. An air inlet 8 is arranged on the side wall of the air inlet pipe. One side of the air inlet pipe is provided with a cover plate 9. A rotating shaft 10 is rotatably connected through the cooling pipe 5. One side of the cooling pipe 5 is fixedly communicated with a storage box 6. The cooling pipe 5 penetrates through the refrigeration box 1, and the end of the cooling pipe 5 far away from the refrigeration box 1 is fixedly communicated with the storage box 6. Two symmetrically arranged cleaning frames 15 are arranged on one side of the cover plate 9. A traction mechanism for rotating and pulling the cleaning frame 15 is arranged on one side of the cover plate 9. A driving mechanism for driving the operation of the traction mechanism is arranged on the side of the rotating shaft 10 where the cover plate 9 is located.

[0018] As Figure 1 、 Figure 2 As shown in the figure, in order to realize the contact between the cleaning frame 15 and the filter screen at the air inlet 8 and the sliding contact cleaning, a traction mechanism is arranged, which includes a support frame 13 fixedly connected to one side of the cover plate 9. A toothed ring 14 is rotatably connected to one side of the support frame 13. The toothed ring 14 is fixedly connected with the cleaning frame 15, and the toothed ring 14 is rotatably sleeved on the side wall of the air inlet pipe.

[0019] As Figure 1 As shown in the figure, in order to realize that the cleaning frame 15 is in a low-speed state during operation, the driving mechanism includes a driving gear 11 fixedly connected to the side wall of the rotating shaft 10. A rotating gear 12 is rotatably connected to one side of the cover plate 9. The rotating gear 12 is meshed with the driving gear 11, and the rotating gear 12 is meshed with the toothed ring 14. The transmission ratio of the driving gear 11 to the rotating gear 12 is 1:3.

[0020] As Figure 2 、 3 As shown in the figure, in order to improve the cleaning quality and efficiency of the cleaning frame 15 for the dust and metal debris at the filter screen, a cleaning brush is arranged on the side of the cleaning frame 15 close to the air inlet 8. A filter screen is arranged in the air inlet 8, and the cleaning brush is slidably connected to the filter screen.

[0021] As Figure 3As shown, when in use, first drive the rotation of the rotating shaft 10 through the driving device in the refrigeration box 1. Through the impeller of the rotating shaft 10 in the intake pipe, the driving of air intake through the air inlet 8 can be realized. At this time, the air inhaled into the intake pipe through the air inlet 8 is filtered and cleaned by the filter screen, and the dust and debris are filtered outside the filter screen. At this time, the rotation of the rotating shaft 10 drives the meshing of the driving gear 11 and the rotating gear 12. Through its transmission ratio, the decelerated operation of the rotating gear 12 can be realized. At this time, the rotating gear 12 meshes with the gear ring 14. Under the contact support of the support frame 13, the gear ring 14 drives the two cleaning frames 15 on one side of it to slide in contact with the filter screen. At this time, the cleaning brush on one side of the cleaning frame 15 slides in contact with the filter screen for cleaning. By this method, the blockage problem at the air inlet 8 is avoided, and at the same time, the problem that debris enters the device internally and damages the internal structure is avoided. When the filtered air passes through the cooling pipe 5, at this time, through the connection between the cooling pipe 5 and the storage tank 6, and at the same time, the refrigeration box 1 injects part of the cooled air after cooling treatment into the cooling water in the storage tank 6. Using the specific heat capacity of water, after the cooling water exchanges heat with the air flowing through the cooling pipe 5, the overall temperature of the incoming air can be reduced, avoiding the problem that the pressure of the refrigeration equipment in the refrigeration box 1 increases due to the high temperature, resulting in the reduction of its overall refrigeration efficiency.

[0022] Finally, the most important contribution of the present utility model compared with the prior art is: a cleaning frame 15 that can rotate synchronously is provided to perform contact cleaning treatment on the dust or metal debris blocked at the filter screen of the air inlet 8, avoiding the problem that the dust or metal debris blocks the air inlet 8. At the same time, it extends into the storage tank 6 through the connecting pipe 7 to cool the cooling water in the storage tank 6, and can realize pre-cooling treatment of the inhaled air when passing through the cooling pipe 5, reduce the inhalation temperature of the air, and reduce the refrigeration pressure of the refrigeration equipment, achieving the effect of improving the air intake and refrigeration pressure of the refrigeration equipment.

[0023] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic underground cooling device for metal mines, characterized in that: It includes a refrigeration box (1), on one side of the refrigeration box (1) there is an air outlet (2), inside the air outlet (2) there is an electric grid (3), on one side of the refrigeration box (1) there is a fixedly connected connecting frame (4), on one side of the connecting frame (4) there is a fixedly connected cooling pipe (5), on the side of the cooling pipe (5) far from the connecting frame (4) there is an air inlet pipe fixedly connected, on the side wall of the air inlet pipe there is an air inlet (8), on one side of the air inlet pipe there is a cover plate (9), inside the cooling pipe (5) there is a rotatably connected rotating shaft (10) in a penetrating manner, on one side of the cooling pipe (5) there is a fixedly connected storage box (6), on one side of the cover plate (9) there are two symmetrically arranged cleaning frames (15), on one side of the cover plate (9) there is a traction mechanism for rotating and pulling the cleaning frame (15), and on the side of the rotating shaft (10) located at the cover plate (9) there is a driving mechanism for driving the operation of the traction mechanism.

2. The automatic underground cooling device for metal mines according to claim 1, wherein: The traction mechanism includes a support frame (13) fixedly connected to one side of the cover plate (9), on one side of the support frame (13) there is a rotatably connected gear ring (14), the gear ring (14) is fixedly connected to the cleaning frame (15), and the gear ring (14) is rotatably sleeved on the side wall of the air inlet pipe.

3. The automatic underground cooling device for metal mines according to claim 2, characterized in that: The driving mechanism includes a driving gear (11) fixedly connected to the side wall of the rotating shaft (10), on one side of the cover plate (9) there is a rotatably connected rotating gear (12), the rotating gear (12) is meshed with the driving gear (11), and the rotating gear (12) is meshed with the gear ring (14).

4. The automatic temperature reduction device for underground metal mines according to claim 3, characterized in that: The transmission ratio of the driving gear (11) to the rotating gear (12) is 1:

3.

5. The automatic underground cooling device for metal mines according to claim 4, characterized in that: On the side of the cleaning frame (15) close to the air inlet (8) there is a cleaning brush, inside the air inlet (8) there is a filter screen, and the cleaning brush is slidably connected to the filter screen.

6. The automatic cooling device for underground metal mines according to claim 5, characterized in that: Inside the refrigeration box (1) there is a penetrating cooling pipe (5), and at the end of the cooling pipe (5) far from the refrigeration box (1) there is a fixed communication with the storage box (6).

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