Coal slurry metering device and working principle thereof

Abstract

The invention provides a coal slurry metering device and a working principle thereof, the device comprises a metering pump main body, a pump body connecting seat, a pump head group, an adjusting knob, a flowmeter and concentration structure and a blocking and separating connection pipe structure, and the pump body connecting seat is arranged in the middle of the right side of the metering pump main body. The metering pump body, the coal slurry pipe, the flow meter, the concentration meter, the display screen and the control cabinet cable are arranged in a matched mode, the flow meter is loosened, then the display screen is installed and fixed, and then the flow meter is screwed, so that the metering pump body can be conveniently adjusted in the installation and use process; the pump head set, the connecting box, the blocking frame, the separation mesh, the connecting pipe and the water outlet pipe are arranged in a matched mode, coal slurry is filtered and separated after the blocking frame and the separation mesh are matched, and it is prevented that impurities exist in the coal slurry, and the service life is affected.

Description

Technical Field

[0001] This invention belongs to the field of coal mine equipment technology, and in particular relates to a coal slurry metering device and its working principle. Background Technology

[0002] Drilling in mines produces a large amount of coal slurry, a mixture of coal, water, and slag. This slurry cannot be separated, measured, or reused, and the slag and water in the slurry are difficult to transport.

[0003] A metering device is a type of fluid transport machinery. Its key feature is that it can maintain a constant flow rate regardless of the discharge pressure. Using a metering device, the functions of transporting, metering, and regulating can be completed simultaneously, thereby simplifying the production process and facilitating coal-water separation. By using multiple metering pumps, several media can be metered in accurate proportions, thus allowing for better input into the process flow for separation.

[0004] Existing metering devices cannot separately measure the coal and water in a coal slurry mixture. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a coal slurry metering device and its working principle. By setting a flow meter and a concentration meter, the amount of coal slag and water is calculated. By setting a flow display screen, the amount of coal slag and water passing through the coal slurry is reported at any time. By setting a barrier-free separation connecting pipe structure, the coal slurry is filtered and separated into water and coal.

[0006] The technical solution adopted in this invention is as follows: A coal slurry metering device includes a metering pump body, a pump body connecting seat located at the middle right side of the metering pump body, a pump head assembly connected to the right end of the pump body connecting seat, an adjustment knob located at the left end of the metering pump body, a flow meter and a concentration meter structure connected to the bottom end of the metering pump body, and a blockable separation connecting pipe structure located at the bottom end of the pump head assembly.

[0007] The flow meter and concentration meter structure includes a coal slurry pipe, a flow meter, a concentration meter, a display screen, and a control cabinet cable. The flow meter and concentration meter are installed inside the left and right ends of the coal slurry pipe. The display screen is connected to the bottom of the coal slurry pipe. The other end of the display screen is electrically connected to the control cabinet cable.

[0008] Preferably, the concentration meter is an electromagnetic flowmeter, and the measuring tube is a short, non-magnetic alloy tube lined with insulating material. Two electrodes are fixed to the measuring tube through the tube wall along the tube diameter, with their electrode heads basically flush with the inner surface of the lining. When the excitation coil is energized by a square wave pulse, a magnetic field with magnetic flux density will be generated in a direction perpendicular to the axis of the measuring tube.

[0009] Preferably, the obstructible separation connecting pipe structure includes a connecting box, with a blocking frame bolted to the inner wall of the connecting box; separation meshes bolted to the inner walls of the left and right sides of the blocking frame; a connecting pipe threaded to the middle position of the bottom end of the connecting box; and water outlet pipes threaded to the middle positions of the left and right sides of the bottom end of the connecting box, respectively.

[0010] The beneficial effects of this invention are as follows: In this invention, the coordinated arrangement of the metering pump body, coal slurry pipe, flow meter, concentration meter, display screen, and control cabinet cable facilitates the measurement of the quantities of coal slurry, coal slag, and water during use, and allows for the real-time display of these quantities.

[0011] In this invention, the pump head assembly, connecting box, baffle frame, separation screen, connecting pipe and water outlet pipe are arranged in a coordinated manner. During use, the baffle frame and separation screen work together to separate the coal slurry. After the water and coal slag are separated, a good foundation is laid for the next step of separating the coal slurry from the coal slag and water. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention.

[0013] Figure 2 This is a schematic diagram of the flow meter and concentration structure of the present invention.

[0014] Figure 3 This is a schematic diagram of the obstructable detachable connecting pipe structure of the present invention.

[0015] In the picture: 1. Metering pump body; 2. Pump body connecting seat; 3. Pump head assembly; 4. Adjustment knob; 5. Flow meter and concentration structure; 51. Coal slurry pipe; 52. Flow meter; 53. Concentration meter; 54. Display screen; 55. Control cabinet cable; 6. Blockable separation connecting pipe structure; 61. Connecting box; 62. Blocking frame; 63. Separating mesh; 64. Connecting pipe; 65. Water outlet pipe. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings, as shown below. Figure 1 and attached Figure 2 As shown, a coal slurry metering device includes a metering pump body 1, a pump body connecting seat 2, a pump head assembly 3, an adjustment knob 4, a flow meter and concentration structure 5, and a blockable separation connecting pipe structure 6. The pump body connecting seat 2 is located at the middle position on the right side of the metering pump body 1; the pump head assembly 3 is connected to the right end of the pump body connecting seat 2; and the adjustment knob 4 is located at the left end of the metering pump body 1.

[0017] like Figure 2As shown, the bottom end of the metering pump body 1 is connected to a flow meter and a concentration structure 5; the bottom end of the pump head assembly 3 is provided with a blockable separation connecting pipe structure 6; the flow meter and concentration structure 5 includes a coal slurry pipe 51, a flow meter 52, a concentration meter 53, a display screen 54, and a control cabinet cable 55. The flow meter 52 and the concentration meter 53 are installed inside the left and right ends of the coal slurry pipe 51; the display screen 54 is connected to the bottom of the coal slurry pipe; the other end of the display screen 54 is electrically connected to the control cabinet cable 55.

[0018] After the coal slurry enters the metering pump body 1, it enters the coal slurry pipe 51. It passes through the flow meter 52 and the concentration meter 53. The flow meter 52 detects the amount of slurry passing through, and the concentration meter 53 detects the concentration passing through. The data detected by the flow meter and the concentration meter 53 are electrically connected to the control cabinet via the control cabinet cable 55 and transmitted to the control cabinet. After data processing, the control cabinet displays the amount of coal slag and water on the display screen at a certain time interval.

[0019] The concentration meter is an electromagnetic flowmeter. The measuring tube is a short, non-magnetic alloy tube lined with insulating material. Two electrodes are fixed to the measuring tube through the tube wall along the tube diameter, with the electrode heads basically flush with the inner surface of the lining. When the excitation coil is energized by a square wave pulse, a magnetic field with a magnetic flux density will be generated in a direction perpendicular to the axis of the measuring tube.

[0020] In this implementation plan, in conjunction with the appendix Figure 3 As shown, the obstructible separation connecting pipe structure 6 includes a connecting box 61, a blocking frame 62, a separation mesh 63, a connecting pipe 64, and a water outlet pipe 65. The blocking frame 62 is bolted to the inner wall of the connecting box 61; the separation mesh 63 is bolted to the inner walls of the left and right sides of the blocking frame 62; the connecting pipe 64 is threaded to the middle position of the bottom end of the connecting box 61; the water outlet pipe 65 is threaded to the middle positions of the left and right sides of the bottom end of the connecting box 61 respectively. After the metering pump body 1 is installed, external pipes are used for connection and installation. During use, the bottom end of the connecting pipe 64 is connected to the external pipe. During operation, the blocking frame 62 and the separation mesh 63 work together to perform coal slurry separation, preventing impurities in the coal slurry from damaging the interior of the metering pump body 1, thus completing the work of the metering pump body 1. During use, the blocking frame and the separation mesh work together to filter and separate the coal slurry, laying a foundation for the next step of separating the coal slag and water from the coal slurry.

[0021] In this embodiment, specifically, the coal slurry pipe 51 is made of stainless steel plate; and the outer wall of the display screen 54 is fitted with a rubber sleeve.

[0022] In this embodiment, specifically, the coal slurry pipe 51 is located at the bottom of the metering pump body 1 and is internally connected; the flow meter 52 detection head is located inside the coal slurry pipe 51 and is sealed by a sealing ring to prevent coal slurry leakage.

[0023] In this embodiment, specifically, the blocking frame 62 is an inverted V-shaped stainless steel frame and a sealing ring is provided between the blocking frame 62 and the inner wall of the connecting box 61; the water outlet pipe 65 is a stainless steel pipe with a sealing cap connected to the bottom thread.

[0024] In this embodiment, specifically, the bottom end of the pump head assembly 3 is threadedly connected to the middle position inside the upper end of the connecting box 61, and a sealing ring is provided at the connection.

[0025] Working principle In this invention, when in use, the coal slurry enters the metering pump body 1 and then enters the coal slurry pipe 51. The flow meter 52 detects the amount of coal slurry passing through, and the concentration meter 53 detects the concentration of the coal slurry passing through. The detected data is electrically connected to the control cabinet via the control cabinet cable 55 and transmitted to the control cabinet. After data processing, the control cabinet displays the amount of coal slag and water on the display screen at certain intervals, so that people can know the amount of coal slurry, coal slag, and water passing through the device at any time.

[0026] After the metering pump body 1 is installed, external pipes are used for connection and installation. During use, the bottom end of the connecting pipe 64 is connected to the external pipe. During operation, the coal slurry is separated by the cooperation of the baffle 62 and the separation screen 63 to prevent impurities in the coal slurry from damaging the inside of the metering pump body 1. This completes the work of the metering pump body 1. During use, the coal slurry is filtered and separated by the cooperation of the baffle 62 and the separation screen.

[0027] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A coal slurry metering device, characterized in that, The device includes a metering pump body (1), with a pump body connecting seat (2) located at the middle of the right side of the metering pump body (1); a pump head assembly (3) is connected to the right end of the pump body connecting seat (2); and an adjustment knob (4) is located at the left end of the metering pump body (1). The device is characterized in that the bottom end of the metering pump body (1) is connected to a flow meter and a concentration structure (5); the bottom end of the pump head assembly (3) is provided with a blockable separation connecting pipe structure (6); the flow meter and concentration structure (5) includes a coal slurry pipe (51), a flow meter (52), a concentration meter (53), a display screen (54), and a control cabinet cable (55); the flow meter (52) and concentration meter (53) are installed inside both ends of the coal slurry pipe (51); a display screen (54) is connected below the coal slurry pipe; and the other end of the display screen (54) is electrically connected to the control cabinet cable (55).

2. The coal slurry metering device as described in claim 1, characterized in that, The obstructable separation connecting pipe structure (6) includes a connecting box (61), and a blocking frame (62) is bolted to the inner wall of the connecting box (61); a separation mesh (63) is bolted to the inner walls of the left and right sides of the blocking frame (62); a connecting pipe (64) is threaded to the middle position of the bottom end of the connecting box (61); and water outlet pipes (65) are threaded to the middle positions of the left and right sides of the bottom end of the connecting box (61).

3. The coal slurry metering device as described in claim 1, characterized in that, The coal slurry pipe (51) is located at the bottom of the metering pump body (1); the flow meter (52) is located inside the coal slurry pipe (51).

4. The coal slurry metering device as described in claim 1, characterized in that, The bottom end of the pump head assembly (3) is threadedly connected to the upper end of the connecting box (61) at the middle position, and a sealing ring is provided at the connection.

5. The metering principle of the coal slurry metering device as described in claim 1, characterized in that, When this device is in use, the coal slurry enters the metering pump body (1) and then enters the coal slurry pipe (51). The flow meter (52) detects the amount of coal slurry passing through and the concentration meter (53) detects the concentration of the coal slurry passing through. The detected data is then electrically connected to the control cabinet via the control cabinet cable (55) and transmitted to the control cabinet to obtain the amount of coal slurry, the amount of coal slag, and the amount of water.

6. The water-coal separation principle of a coal slurry metering device as described in claim 1, characterized in that, After the metering pump body (1) is installed, the external pipeline is used for connection and installation. During use, the bottom end of the connecting pipe (64) is connected to the external pipeline. During operation, the coal slurry is separated by the cooperation of the baffle (62) and the separation screen (63). During use, the coal slurry is filtered and separated by the cooperation of the baffle and the separation screen, laying a good foundation for the next step of separating the coal slag and water from the coal slurry.

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