Coal-water-gas separating and coal cinder weighing device

Abstract

The utility model discloses a coal-water-gas separating and coal cinder weighing device which comprises a base arranged in the horizontal direction, a gas separating box is installed on the left half side of the base, and a horizontal rotary screen is installed on the right half side of the base. The gas separation box comprises a sealed box body, the bottom of the right side of the box body is open and provided with a valve, the top of the box body is provided with a feeding port and an extraction opening, the right side of the bottom of the box body is further provided with an outlet pipe, and one end of the outlet pipe is communicated with the box body; the horizontal drum screen comprises a drum shell, the left end and the right end of the drum shell are open, the drum shell is fixedly connected with the base, a drum is coaxially sleeved with the drum shell, and the drum can rotate around the central axis; a screen is arranged at the middle section of the roller, and a water collecting tank is arranged under the screen; the other end of the outlet pipe extends into the feeding hole of the roller; and a weighing chute is arranged below a discharge port at the right end of the roller. According to the device, gas, water and coal cinder can be separated in the gas extraction drilling and hydraulic punching process, the separated coal cinder is weighed, and the separation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal mine drilling gas control technical field relates to coal water gas separation, concretely relates to a coal water gas separation and coal cinder weighing device. BACKGROUND

[0002] Gas pre-extraction before coal mining is the main means to solve gas overrun, in order to improve the influence radius of gas extraction drilling, usually after drilling is completed, hydraulic punching operation is carried out, a large amount of coal cinder, rock powder and water mixture are produced in the process of drilling and hydraulic punching, and gas is discharged from the orifice along with the gas. In order to prevent gas overflow, realize water recycling and coal cinder transportation and cleaning, coal cinder, water and gas must be separated. At present, the separation methods mainly used in the prior art are natural sedimentation, vibrating screen and spiral extrusion, and there are problems of gas overflow, hole blocking, low separation efficiency and high energy consumption. SUMMARY

[0003] In view of the deficiencies of the prior art, one purpose of the utility model is to provide a coal water gas separation and coal cinder weighing device to solve the technical problem that the separation efficiency between coal cinder, water and gas in the prior art needs to be further improved.

[0004] Another purpose of the utility model is to provide a coal water gas separation and coal cinder weighing device to solve the technical problem that gas overflow phenomenon needs to be further reduced when coal cinder, water and gas are separated in the prior art.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme to achieve it:

[0006] A coal water gas separation and coal cinder weighing device, comprising a base arranged in the horizontal direction, a gas separation tank is installed on the left half of the base, and a horizontal drum screen is installed on the right half of the base.

[0007] The gas separation tank comprises a sealed tank body, the right side bottom of the tank body is open and is provided with a valve, a feeding port is formed in the top of the tank body, and an air extraction port is also formed in the top of the tank body, and an outlet pipe is further arranged on the right half of the bottom of the tank body and is communicated with the tank body.

[0008] The horizontal drum screen comprises a drum shell, the center axis of the drum shell is arranged along the transverse direction, the left end and the right end of the drum shell are open, the drum shell is fixedly connected with the base, a drum is coaxially sleeved in the drum shell, and the drum can rotate around the center axis of the drum shell.

[0009] The middle section of the drum is provided with a screen mesh, and a water collecting tank is arranged on the drum shell below the screen mesh.

[0010] The feed inlet at the left end of the roller is located in the left end of the roller shell, and the discharge outlet at the right end of the roller extends out of the right end of the roller shell; the other end of the outlet pipe extends into the feed inlet at the left end of the roller; a weighing chute is arranged directly below the discharge outlet at the right end of the roller, so that the coal residue screened out from the horizontal roller screen can enter the weighing chute.

[0011] The utility model disciously has the following technical features:

[0012] Specifically, the left half of the base is fixedly connected with a gas separation tank support seat, and the top of the gas separation tank support seat is fixedly connected with the bottom of the tank body.

[0013] Specifically, the right half of the base is fixedly connected with multiple pairs of horizontally and vertically distributed horizontal roller screen support seats, and the top side of each pair of horizontal roller screen support seats is fixedly connected with a support roller.

[0014] Specifically, the horizontal roller screen further comprises a hydraulic motor, and the bottom of the hydraulic motor is fixedly connected with the top of the gas separation tank support seat; a gear is further fixedly connected to the right side output shaft of the hydraulic motor, the gear is engaged with an outer gear ring arranged in the same vertical direction, and the outer gear ring is installed on the roller, so that the hydraulic motor can drive the roller to rotate around the central axis of the roller shell.

[0015] Specifically, the inner wall of the roller is provided with a spiral blade, and the spiral blade transports materials from left to right along the transverse direction.

[0016] Specifically, a stop valve is further arranged on the outlet pipe; a horizontally arranged gas micro-porous isolation plate is further fixedly connected to the right half of the tank body; a stirring wheel is arranged at the center of the left half of the bottom of the inner side of the tank body, and the stirring wheel is driven by a stirring wheel driving motor installed outside the tank body; a negative pressure gauge for monitoring the pressure inside the tank body is further arranged on the top of the tank body.

[0017] Preferably, a plurality of compressed air nozzles are uniformly distributed on the top of the roller shell in the horizontal direction, each compressed air nozzle is in communication with a compressed air pipe at the top, the compressed air pipe penetrates through the upper and lower sides of the top of the roller shell, and the compressed air nozzles spray compressed air to the screen.

[0018] Specifically, the right end bottom of the water collecting tank is in communication with a drain pipe.

[0019] Compared with the prior art, the utility model has the following beneficial technical effects:

[0020] (I) The device of the utility model can separate gas, water and coal residue during the process of gas extraction drilling and hydraulic flushing, and the separated coal residue can be weighed, thereby improving the separation efficiency.

[0021] (II) The device of the utility model changes the vibrating screen into a horizontal cylinder screen with spiral blade discharge, improves the separation capacity; the compressed air nozzle is added to flush the screen, reduces the hole blocking phenomenon and improves the separation efficiency; the gas separation chamber is changed into a fully enclosed space to avoid gas overflow caused by gas overrun. Meanwhile, the weighing chute is added to solve the problem of coal residue weighing during coal washing. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic view of coal water gas separation and coal residue weighing device.

[0023] The meanings of the various reference numerals in the drawing are as follows: 1-base, 2-gas separation tank, 3-horizontal cylinder screen, 4-weighing chute, 5-controller, 6-counter.

[0024] 101-gas separation tank support seat, 102-horizontal cylinder screen support seat, 103-supporting roller.

[0025] 201-tank body, 202-feed inlet, 203-gas extraction port, 204-outlet pipe, 205-stop valve, 206-gas micro-porous isolation plate, 207-stirring wheel, 208-stirring wheel drive motor, 209-negative pressure gauge.

[0026] 301-cylinder shell, 302-cylinder, 303-screen, 304-water collecting tank, 305-hydraulic motor, 306-gear, 307-outer gear ring, 308-spiral blade, 309-compressed air nozzle, 310-compressed air pipe, 311-drain pipe.

[0027] 401-chute, 402-gravity sensor, 403-chute cover, 404-oil cylinder, 405-oil cylinder electromagnetic reversing valve.

[0028] The specific content of the utility model is further explained and described in detail in combination with the following embodiments. DETAILED DESCRIPTION

[0029] It should be noted that all the devices and parts in the utility model, such as without special description, all adopt the devices and parts known in the prior art. For example, the gravity sensor adopts the known gravity sensor, the oil cylinder adopts the known oil cylinder, the oil cylinder electromagnetic reversing valve adopts the known oil cylinder electromagnetic reversing valve, and the counter adopts the known counter.

[0030] In the utility model, the coordinate system OXYZ coordinate system is a known three-dimensional rectangular coordinate system; the X axis is horizontal, and the direction of the X axis is right; the Y axis is vertical, and the direction of the Y axis is forward; and the Z axis is vertical, and the direction of the Z axis is upward.

[0031] In this utility model, the axial direction of the horizontal drum screen 3 is the same as the transverse direction; the axial direction of the drum 302 is the same as the transverse direction.

[0032] Following the above technical solution, the following are specific embodiments of this utility model. It should be noted that this utility model is not limited to the following specific embodiments, and all equivalent modifications made based on the technical solution of this application fall within the protection scope of this utility model.

[0033] Example:

[0034] This embodiment provides a coal-water-gas separation and coal slag weighing device, such as... Figure 1 As shown, it includes a base 1 arranged in a horizontal direction, a gas separation box 2 installed on the left half of the base 1, and a horizontal drum screen 3 installed on the right half of the base 1.

[0035] like Figure 1 As shown, the gas separation box 2 includes a sealed box body 201. The bottom right side of the box body 201 is open and has a valve. The top of the box body 201 has a feed inlet 202 and an exhaust port 203. The bottom right half of the box body 201 is also provided with an outlet pipe 204, one end of which is connected to the box body 201.

[0036] like Figure 1 As shown, the horizontal drum screen 3 includes a drum shell 301. The central axis of the drum shell 301 is arranged horizontally. The left and right ends of the drum shell 301 are open. The drum shell 301 is fixedly connected to the base 1. A drum 302 is coaxially fitted inside the drum shell 301. The drum 302 can rotate around the central axis of the drum shell 301.

[0037] like Figure 1 As shown, the middle section of the roller 302 is set as a screen 303, and a water collection trough 304 is provided on the roller shell 301 directly below the screen 303.

[0038] like Figure 1 As shown, the feed inlet at the left end of the drum 302 is located inside the left end of the drum housing 301, and the discharge outlet at the right end of the drum 302 extends outside the right end of the drum housing 301. The other end of the outlet pipe 204 extends into the feed inlet at the left end of the drum 302. A weighing chute 4 is provided directly below the discharge outlet at the right end of the drum 302, allowing the coal slag screened from the horizontal drum screen 3 to enter the weighing chute 4.

[0039] In this embodiment, the feed inlet 202 is connected to the slag discharge pipe of the blowout preventer installed outside the borehole, and the feed inlet 202 is connected to the gas extraction system.

[0040] In this embodiment, the initial state, the stop valve 205 is closed, the entire tank 201 is in a sealed state. Coal water gas mixture from the gas separation tank 2 top inlet 202 into the sealed tank 201, gas accumulation in the upper part of the tank 201, using negative pressure from the suction port 203 away.

[0041] As a preferred embodiment of the present application, as shown in Figure 1 The left half of the base 1 is fixedly connected with the gas separation tank support seat 101, and the top of the gas separation tank support seat 101 is fixedly connected with the bottom of the tank 201.

[0042] As shown in Figure 1 The right half of the base 1 is fixedly connected with a plurality of pairs of horizontally distributed horizontal drum screen support seats 102, and the top side of each pair of horizontal drum screen support seats 102 is fixedly connected with a support roller 103. The top of the support roller 103 is in contact with the left and right sides of the middle section of the bottom of the drum 302.

[0043] As a preferred embodiment of the present application, as shown in Figure 1 The horizontal drum screen 3 further comprises a hydraulic motor 305, and the bottom of the hydraulic motor 305 is fixedly connected with the top of the gas separation tank support seat 101. A gear 306 is further fixedly connected to the right side output shaft of the hydraulic motor 305, and the gear 306 is engaged with an outer ring gear 307 arranged in the same vertical direction. The outer ring gear 307 is installed on the drum 302, so that the hydraulic motor 305 can drive the drum 302 to rotate around the center axis of the drum housing 301.

[0044] As a preferred embodiment of the present application, the inner wall of the drum 302 is provided with a spiral blade 308, and the spiral blade 308 is arranged to transport material from left to right along the transverse direction.

[0045] As a preferred embodiment of the present application, as shown in Figure 1 The outlet pipe 204 is further provided with a stop valve 205. The right half of the tank 201 is further fixedly connected with a horizontally arranged gas gas micro-porous isolation plate 206. The left half of the center of the inside bottom of the tank 201 is provided with a stirring wheel 207, and the stirring wheel 207 is driven by a stirring wheel drive motor 208. The stirring wheel drive motor 208 is installed outside the tank 201. The top of the tank 201 is further provided with a negative pressure gauge 209 capable of monitoring the pressure inside the tank 201.

[0046] In this embodiment, the stirring wheel 207 rotates to drive the coal water mixture in the sealed tank 201 to mix fully, preventing the coal residue from depositing at the bottom of the gas separation tank 2.

[0047] As a preferred embodiment of the present application, as shown in Figure 1As shown, the top of the drum shell 301 is also uniformly distributed with a plurality of compressed air nozzles 309 in the horizontal direction, each compressed air nozzle 309 is connected to a compressed air pipe 310 at the top, the compressed air pipe 310 penetrates through the top and bottom of the drum shell 301, and the compressed air nozzle 309 sprays compressed air to the screen 303.

[0048] In this embodiment, the compressed air nozzle 309 is used to clean the surface of the screen 303 to prevent the micropores of the screen 303 from being blocked.

[0049] As a preferred scheme of this embodiment, as shown in the figure, Figure 1 As shown, the bottom of the right end of the water collecting tank 304 is connected to the drain pipe 311.

[0050] In this embodiment, the weighing chute 4 includes a chute 401 which is closed in the circumferential direction and open at both ends, the chute 401 is fixedly installed on the base 1, the feed inlet at the left end of the chute 401 is located directly below the discharge outlet at the right end of the drum 302, the bottom of the chute 401 is in contact with the top of the gravity sensor 402 in the middle, and the bottom of the gravity sensor 402 is fixedly connected to the top of the base 1. The discharge outlet at the right end of the chute 401 is also provided with a hinged chute cover 403, which is driven to open and close by an oil cylinder 404 installed on the chute 401. The oil cylinder 404 is connected to an oil cylinder electromagnetic reversing valve 405, the gravity sensor 402 is connected to the input end of the controller 5, the output end of the controller 5 is connected to the oil cylinder electromagnetic reversing valve 405; the output end of the controller 5 is also connected to the counter 6.

[0051] In this embodiment, the coal cinder weight measurement method cannot directly read the gravity sensor reading as the coal cinder weight due to the influence of external forces such as the weight of the chute 401 itself and the friction of the connecting pin shaft, and the actual measurement of the coal cinder weight in the chute is required as the weighing value. The specific method is: close the chute cover 403, when the coal cinder in the chute 401 reaches 80% of the volume of the chute 401, record the first reading of the gravity sensor. Open the chute cover 403 to discharge the coal cinder, weigh it with an electronic scale, and the obtained weight is the single weighing weight of the chute 401. When the reading of the gravity sensor 402 is equal to the first reading, the single weighing weight of the chute 401 is measured again, and the operation is repeated more than three times, and the average value is taken as the weighing value. The first reading of the gravity sensor 402 is used as the basis for judging whether the chute cover 403 is opened or not, and the opening time of the chute cover 403 is set to 2 seconds. The counter 6 records the number of times the chute cover 403 is opened through the controller 5, and the cumulative coal cinder weight is obtained by multiplying the number of times the chute cover 403 is opened by the weighing value.

[0052] In this embodiment, the cross section of the chute 401 is a semicircular arc, and the coal cinder in the chute 401 can be emptied at a time in 2 seconds.

[0053] The device in this embodiment is used in:

[0054] The coal-water-gas mixture enters the sealed box 201 from the inlet 202 above the gas separation tank, and the gas is gathered above the inside of the box 201 and is drawn away from the gas outlet 203 by negative pressure.

[0055] The coal-water mixture at the lower part of the sealed box 201 flows from the outlet pipe 204 to the inlet on the left side of the horizontal drum screen 3, and the water flows through the screen mesh 303 to the water collecting tank 304 below and is discharged to the outside underground drainage ditch through the drain pipe 311. The spiral blades in the drum 302 drive the coal cinder to move to the discharge port on the right side of the drum 302, and the coal cinder is discharged from the discharge port to the weighing chute 4.

[0056] The coal cinder in the weighing chute 4 is transported to the transport belt or the scraper transport to realize the cleaning and transportation of the coal cinder.

Claims

1. A coal water gas separation and coal residue weighing device, characterized in that, It includes the base (1) arranged in horizontal direction, the left half of base (1) is installed with gas separation tank (2), the right half of base (1) is installed with horizontal cylinder screen (3); The gas separation tank (2) includes sealed tank body (201), the right bottom of tank body (201) is open and has valve, the top of tank body (201) is provided with feed inlet (202), the top of tank body (201) is also provided with exhaust port (203), the right half of the bottom of tank body (201) is also provided with outlet pipe (204), one end of outlet pipe (204) is communicated with tank body (201); The horizontal cylinder screen (3) includes cylinder shell (301), the center axis of cylinder shell (301) is arranged along transverse direction, the left end and right end of cylinder shell (301) are open, cylinder shell (301) is fixedly connected with base (1), cylinder shell (301) is coaxially sleeved with cylinder (302) inside, cylinder (302) can rotate around the center axis of cylinder shell (301). The middle section of cylinder (302) is provided with screen (303), water collecting tank (304) is arranged on cylinder shell (301) below screen (303); The feed inlet of left end of cylinder (302) is located in the left end of cylinder shell (301), the discharge outlet of right end of cylinder (302) extends to the right end outside of cylinder shell (301), the other end of outlet pipe (204) extends into the feed inlet of left end of cylinder (302), the discharge outlet of right end of cylinder (302) is provided with weighing chute (4) below, so that the coal residue screened from horizontal cylinder screen (3) can enter weighing chute (4).

2. The coal water gas separation and coal residue weighing device according to claim 1, characterized in that, The left half of base (1) is fixedly connected with gas separation tank support seat (101), the top of gas separation tank support seat (101) is fixedly connected with the bottom of tank body (201); The right half of base (1) is fixedly connected with multiple pairs of horizontally distributed horizontal cylinder screen support seats (102), the top side of each pair of horizontal cylinder screen support seats (102) is fixedly connected with support roller (103), the top of support roller (103) is in contact with the left and right sides of middle section of cylinder (302) bottom.

3. The coal water gas separation and coal residue weighing device according to claim 2, characterized in that, The horizontal cylinder screen (3) further includes hydraulic motor (305), the bottom of hydraulic motor (305) is fixedly connected with the top of gas separation tank support seat (101), the right side output shaft of hydraulic motor (305) is further fixedly connected with gear (306), gear (306) is engaged with outer gear ring (307) arranged in the same vertical direction, outer gear ring (307) is installed on cylinder (302), so that hydraulic motor (305) can drive cylinder (302) to rotate around the center axis of cylinder shell (301).

4. The coal water gas separation and coal residue weighing device according to claim 1, characterized in that, Spiral blade (308) is arranged on the inner wall of cylinder (302), spiral blade (308) feeds material from left to right along transverse direction.

5. The coal water gas separation and coal residue weighing device according to claim 1, characterized in that, The outlet pipe (204) is further provided with a stop valve (205); the right half of the inner side of the box (201) is further fixedly connected with a horizontally arranged gas micro-porous isolation plate (206); the left half of the bottom of the inner side of the box (201) is provided with a stirring wheel (207) at the center, the stirring wheel (207) is driven by a stirring wheel driving motor (208), and the stirring wheel driving motor (208) is installed outside the box (201); the top of the box (201) is further provided with a negative pressure gauge (209) capable of monitoring the pressure inside the box (201).

6. The coal water gas separation and coal residue weighing device according to claim 1, characterized in that, The top of the roller shell (301) is further uniformly provided with a plurality of compressed air nozzles (309) in the horizontal direction, each compressed air nozzle (309) is communicated with a compressed air pipe (310) at the top, the compressed air pipe (310) penetrates through the upper and lower sides of the top of the roller shell (301), and the compressed air nozzle (309) sprays compressed air to the screen (303).

7. The coal water gas separation and coal residue weighing device according to claim 1, characterized in that, The right end bottom of the water collecting tank (304) is communicated with a drain pipe (311).

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