Cooling water recovery system

Abstract

The invention discloses a cooling water recovery system which comprises a spray water tank, a cooler, a three-machine water return tank and a three-machine water supply pipeline, a water inlet and a water outlet of the spray water tank are communicated with the three-machine water supply pipeline, the cooler is arranged between the spray water tank and the three-machine water supply pipeline, and the three-machine water supply pipeline is connected to three machines of a fully mechanized coal mining face; return water passing through the three machines is recycled to a return water tank of the three machines in a centralized mode, the return water of the return water tank of the three machines is conveyed to a newly-added water tank of the equipment train, and the newly-added water tank of the equipment train is communicated with a spraying water tank. Cooling water passing through three machines can be recycled into the three-machine water return tank in a centralized mode, one part of the cooling water is used for supplying water to an equipment train spraying pump, the other part of the cooling water is input into the spraying water tank to be mixed with cold water at the liquid inlet end for cooling, and therefore recycling of the three-stage cooling water is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining equipment, and in particular to a cooling water recovery system. Background Art

[0002] At present, in the comprehensive mining face of coal, the motors of the "three machines" (scraper conveyor, transfer machine, and crusher) use water-cooled motors, reducers, and hydraulic couplings. The cooling water of the three machines is drawn from the underground water supply system. After the motor cooling cycle, the cooling water is directly discharged into the working face. On the one hand, it causes a waste of water resources and increases production costs.

[0003] The cooling water is mixed with the coal slime on the working face to form water-coal slime, which requires a lot of manpower to remove. In addition, due to the unevenness of the two tunnels of the working face, the cooling water of the working face is often not drained cleanly, resulting in water accumulation in the two tunnels and poor on-site civilized production. More seriously, it affects the normal production progress, the coal quality, and then the coal sales price. Therefore, it is very necessary to recycle the cooling water of the three machines in the comprehensive mining working face. Summary of the invention

[0004] To this end, the present invention provides a cooling water recovery system to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A cooling water recovery system comprises a spray water tank, a cooler, a three-machine return water tank and a three-machine water supply pipeline, wherein the water inlet and the water outlet of the spray water tank are both connected to the three-machine water supply pipeline, the cooler is arranged between the spray water tank and the three-machine water supply pipeline, and the three-machine water supply pipeline is connected to the three machines of the comprehensive mining working face; the return water after the three machines is centrally recovered to the three-machine return water tank, and the return water of the three-machine return water tank is transported to a newly added water tank of an equipment train, and the newly added water tank of the equipment train is connected to the spray water tank.

[0007] Further: the equipment train is equipped with a new water tank and an external equipment train spray pump.

[0008] Further: the cooler includes a water inlet box, a water outlet box, a cooling pipe, a cooling plate and an external frame; a water inlet pipe is provided on the side wall of the water inlet box, and a water outlet pipe is provided on the side wall of the water outlet box; a number of cooling pipes are arranged side by side, and a number of cooling plates are provided, and the two ends of the several cooling pipes are respectively connected to the water inlet box and the water outlet box; the cooling pipes are embedded in the cooling plate; and the several cooling plates are connected together by a number of spacer connecting plates.

[0009] Furthermore: the water inlet box and the water outlet box are both hollow structures; the water inlet pipe and the water outlet pipe are arranged in opposite directions.

[0010] Further: the cooling pipe is a serpentine pipe.

[0011] Further: the cooling plate is a rectangular plate, and the corners of the cooling plate are rounded structures.

[0012] Further: the cooling plates are all provided with strip holes, and the strip holes are located on the sides of the cooling pipes.

[0013] Furthermore: an external frame is provided on the outside of several of the cooling plates, a mounting seat is provided at the bottom of the external frame, reinforcing support rods are provided on the front and rear sides of the external frame, and a water inlet tank and a water outlet tank are provided at the top of the external frame; a reserved mounting plate is also provided on the top of the external frame.

[0014] Furthermore: a plurality of fans are arranged on the side walls of the external frame; the air outlets of the fans face the gaps between the plurality of cooling plates.

[0015] Furthermore: a metal hollow protective net is arranged around the external frame.

[0016] The present invention has the following advantages: the present invention can centrally recycle the cooling water after passing through the three machines into the three-machine return water tank, a part of which is used to supply water to the equipment train spray pump, and the other part is input into the spray water tank to mix with the cold water at the liquid inlet end for cooling, thereby realizing the recycling of three-stage cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic structural diagram of a cooling water recovery system of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the cooler in the cooling water recovery system of the present invention.

[0019] Figure 3 for Figure 2 A perspective view of the midcooler body.

[0020] Figure 4 for Figure 2 The cooler is shown in side view with the fan installed.

[0021] In the figure: 1. Spray water tank; 2. Cooler; 3. New water tank for equipment train; 4. Three-machine return water tank; 5. Three-machine water supply pipeline; 201. Water inlet tank; 202. Water outlet tank; 203. Water outlet pipe; 204. Water inlet pipe; 205. Cooling pipe; 206. Cooling plate; 207. Strip hole; 208. Spacer connecting plate; 209. External frame; 210. Mounting seat; 211. Strengthening support rod; 212. Reserved mounting plate; 213. Fan. DETAILED DESCRIPTION

[0022] The following is an explanation of the implementation of the present invention by specific specific examples. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. It should be understood that these embodiments are only to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field can make some non-essential improvements and adjustments to the present invention based on the contents of the above 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 scope of protection of the present invention.

[0023] like Figure 1 As shown, a cooling water recovery system comprises a spray water tank 1, a cooler 2, a newly added water tank 3 of an equipment train, a three-machine return water tank 4 and a three-machine water supply pipeline 5, wherein the water outlet of the spray water tank 1 is connected with the three-machine water supply pipeline 5, the spray water tank 1 pumps the water in the water tank into the three-machine water supply pipeline 5 through a matching water pump, the cooler 2 is arranged between the spray water tank 1 and the three-machine water supply pipeline 5, the three-machine water supply pipeline 5 is connected to the three machines of the comprehensive mining working face, thereby realizing the water supply of the three machines, and the return water after the three machines is centrally recovered to the three-machine return water tank 4, the return water of the three-machine return water tank 4 is transported to the newly added water tank 3 of the equipment train through a matching multi-stage centrifugal pump, the newly added water tank 3 of the equipment train is externally connected to the equipment train spray pump, and can supply water to the spray pump; in addition, the newly added water tank 3 of the equipment train is connected with the spray water tank 1.

[0024] The hot water recovered through the three-machine water return tank 4 can be mixed with the external cold water from the three-machine water supply pipeline 5 in the spray water tank 1 to be cooled.

[0025] The cooler 2 can further cool the liquid in the spray water tank 1 which still has a certain temperature after mixing.

[0026] The liquid inlet and outlet of the spray water tank 1 are respectively connected to the three-machine water supply pipeline 5, so that the mixed liquid in the spray water tank 1 can enter the three-machine water supply pipeline 5, thereby allowing the cooling water of the three machines to be reused.

[0027] like Figure 2 As shown, the cooler 2 includes a water inlet box 201, a water outlet box 202, a cooling pipe 205, a cooling plate 206 and an external frame 209; a water inlet pipe 204 is provided on the side wall of the water inlet box 201, and a water outlet pipe 203 is provided on the side wall of the water outlet box 202; the water inlet box 201 and the water outlet box 202 are both cavity structures; the water inlet pipe 204 and the water outlet pipe 203 are arranged in opposite directions.

[0028] The cooling pipe 205 is a serpentine pipe, and a number of cooling pipes 205 are arranged side by side, and the two ends of the cooling pipes 205 are respectively connected to the water inlet tank 201 and the water outlet tank 202; the cooling pipe 205 is embedded in the cooling plate 206, so that the heat dissipation area of ​​the cooling pipe 205 is increased, thereby improving the heat dissipation efficiency; the cooling plate 206 is a rectangular plate, and the corners of the cooling plate 206 are rounded structures.

[0029] like Figure 3 As shown, the cooling plates 206 are each provided with strip holes 207 , and the strip holes 207 are located on the sides of the cooling pipes 205 . The strip holes 207 can allow air to pass through, which is beneficial to improving the cooling rate.

[0030] The cooling plates 206 are connected together by a plurality of spacer connecting plates 208 ; the spacer connecting plates 208 can ensure that the gaps between adjacent cooling plates 206 are uniform.

[0031] An external frame 209 is provided on the outside of several groups of cooling plates 206, a mounting seat 210 is provided at the bottom of the external frame 209, reinforcing support rods 211 are provided on the front and rear sides of the external frame 209, and the water inlet box 201 and the water outlet box 202 are arranged at the top of the external frame 209; a reserved mounting plate 212 is also provided on the top of the external frame 209.

[0032] like Figure 4 As shown, a plurality of fans 213 are disposed on the side walls of the external frame 209 ; air outlets of the fans 213 face the gaps between the groups of cooling plates 206 .

[0033] During use, when the temperature of the mixed liquid in the spray water tank 1 is still high, the fan 213 can be started, and the fan 213 can accelerate the air flow around the cooling pipe 205, thereby achieving the purpose of cooling.

[0034] In addition, in order to further improve the cooling effect, fans 213 may be installed on both the left and right sides of the external frame 209; and an exhaust fan may be provided at the top of the external frame 209 to accelerate cooling.

[0035] In this embodiment, in order to improve the protection of the cooler 2, a metal hollow protection net may be further provided on the peripheral side of the external frame 209.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooling water recovery system, comprising a spray water tank (1), a cooler (2), a three-machine return water tank (4) and a three-machine water supply pipeline (5), characterized in that: The water inlet and the water outlet of the spray water tank (1) are both connected to the three-machine water supply pipeline (5); the cooler (2) is arranged between the spray water tank (1) and the three-machine water supply pipeline (5); the three-machine water supply pipeline (5) is connected to the three machines of the fully mechanized mining face; the return water after the three machines is collected and collected in the three-machine return water tank (4); the return water of the three-machine return water tank (4) is transported to the newly added water tank (3) of the equipment train; the newly added water tank (3) of the equipment train is connected to the spray water tank (1).

2. A cooling water recovery system according to claim 1, characterized in that: The equipment train is additionally provided with a water tank (3) which is externally connected to a spray pump of the equipment train.

3. A cooling water recovery system according to claim 1, characterized in that: The cooler (2) comprises a water inlet box (201), a water outlet box (202), a cooling pipe (205), a cooling plate (206) and an external frame (209); a water inlet pipe (204) is provided on the side wall of the water inlet box (201), and a water outlet pipe (203) is provided on the side wall of the water outlet box (202); a plurality of cooling pipes (205) are arranged side by side, a plurality of cooling plates (206) are arranged, and two ends of the plurality of cooling pipes (205) are respectively connected to the water inlet box (201) and the water outlet box (202); the cooling pipe (205) is embedded in the cooling plate (206); and the plurality of cooling plates (206) are connected together via a plurality of spacer connecting plates (208).

4. A cooling water recovery system according to claim 3, characterized in that: The water inlet box (201) and the water outlet box (202) are both hollow structures; the water inlet pipe (204) and the water outlet pipe (203) are arranged in opposite directions.

5. A cooling water recovery system according to claim 3, characterized in that: The cooling pipe (205) is a serpentine pipe.

6. A cooling water recovery system according to claim 3, characterized in that: The cooling plate (206) is a rectangular plate, and the corners of the cooling plate (206) are rounded structures.

7. A cooling water recovery system according to claim 3, characterized in that: The cooling plates (206) are each provided with strip holes (207), and the strip holes (207) are located on the sides of the cooling pipes (205).

8. A cooling water recovery system according to claim 3, characterized in that: An external frame (209) is provided on the outside of a plurality of the cooling plates (206); a mounting seat (210) is provided at the bottom of the external frame (209); reinforcing support rods (211) are provided at the front and rear sides of the external frame (209); a water inlet box (201) and a water outlet box (202) are provided at the top of the external frame (209); and a reserved mounting plate (212) is also provided at the top of the external frame (209).

9. A cooling water recovery system according to claim 3, characterized in that: A plurality of fans (213) are arranged on the side wall of the external frame (209); air outlets of the fans (213) face the gaps between the plurality of groups of cooling plates (206).

10. A cooling water recovery system according to claim 3, characterized in that: A metal hollow protective net is arranged on the peripheral side of the external frame (209).

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