Grinding medium cleaning and separating device and overflow pipe

Abstract

The utility model provides a grinding medium cleaning and separating device and an overflow pipe. The grinding medium cleaning and separating device comprises a sand washer, the sand washer comprises a box body, one end of the box body is provided with a feed port, the other end of the box body is provided with a discharge port, the grinding medium cleaning and separating device is characterized by further comprising an overflow pipe, the overflow pipe comprises an outlet and a height-adjustable inlet, and the height of the inlet is larger than or equal to that of the outlet. The overflow pipe is additionally arranged, and the mounting height of the mounting pipe at the upper end of the overflow pipe on the connecting pipe can be adjusted, so that the height of the liquid level in the box body can be adjusted, different requirements are met, and the applicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to a grinding medium cleaning and separating device and an overflow pipe. Background Art

[0002] When a vertical grinding machine works, the internal grinding blades, grinding discs, and cylinder linings are all worn, and need to be replaced after wearing to a certain extent. When overhauling the vertical grinding machine, it is necessary to discharge the internal grinding medium and slurry, and then clean the inside of the cylinder to facilitate the inspection and replacement of vulnerable parts.

[0003] The existing method is to connect the grinding medium and slurry in the cylinder with a container (ton bag, grinding medium tank or pit), and after the overhaul of the vertical grinding machine is completed, the grinding medium is added back to the vertical grinding machine. During this process, it is necessary to wash the grinding medium to wash off the slurry sticking to the grinding medium.

[0004] Existing cleaning equipment, such as a grinding medium cleaning and recycling device disclosed in the existing patent publication number CN206184842U, includes a box body, a screw conveyor device, and a water spray pipe. A feed port is provided on the side wall of the box body, and the feed port is connected to the sand discharge port of the grinding equipment through a quick-connect hose. The grinding medium enters the box body from the feed port, and the grinding medium is driven by the screw blade to be conveyed to the upper end. The water sprayed by the water spray pipe washes the grinding medium, and the sewage flows out when it deposits to the position of the overflow port in the box body. The overflow port provided on the box body is a fixed structure, and the height cannot be adjusted, so the overflow height of the sewage level cannot be adjusted, and the use requirements of other working conditions cannot be met. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a grinding medium cleaning and separating device that can adjust the height of the sewage level, with a wider scope of application.

[0006] The technical solution of the utility model is: a grinding medium cleaning and separating device, including a sand washer, the sand washer includes a box body, one end of the box body is provided with a feed port, the other end of the box body is provided with a discharge port, and is characterized in that it further includes an overflow pipe, the overflow pipe includes an outlet and an inlet with an adjustable height, and the height of the inlet is higher than or equal to the height of the outlet.

[0007] In the above solution, an overflow pipe is added, and the height of the inlet of the overflow pipe is adjustable, so that the height of the liquid level in the box body can be adjusted, meeting different requirements and having better applicability.

[0008] Preferably, the overflow pipe includes an installation pipe, a connecting pipe, an elbow pipe, a straight pipe, and a rubber pipe connected in sequence. The straight pipe passes through the side wall of the box body, so that part of the straight pipe and the rubber pipe are located outside the box body. The top of the installation pipe forms the inlet, and the end of the rubber pipe away from the straight pipe forms the outlet.

[0009] Preferably, the installation pipe is threadedly connected to the connecting pipe, the connecting pipe is threadedly connected to the elbow pipe, and the elbow pipe is threadedly connected to the straight pipe.

[0010] Preferably, the straight pipe includes a first pipe and a second pipe. One end of the first pipe is provided with an external thread for connecting to the elbow pipe, and the other end of the first pipe is provided with a first flange. One end of the second pipe is provided with a second flange, and the outer circumferential surface of the other end of the second pipe is provided with barbs for clamping the rubber pipe. The first flange and the second flange are butted and connected, and the first pipe penetrates through the box body.

[0011] Preferably, the grinding medium cleaning and separating device further includes a flushing device. The flushing device includes a flushing cover, a first flushing pipe, a second flushing pipe, a valve, and a nozzle. A flushing port is opened on the side wall of the box body where the discharge port is provided. The flushing cover is installed at the flushing port. The first flushing pipe is installed inside the flushing cover, and a plurality of nozzles are arranged on the side of the first flushing pipe facing the flushing port. The second flushing pipe connects the first flushing pipe and an external water source outside the box body, and the valve is arranged on the second flushing pipe.

[0012] Preferably, the sand washer further includes a screw conveyor arranged inside the box body. The screw shaft on the screw conveyor is rotatably connected to the side wall of the box body where the feed port is provided through a mechanical seal device.

[0013] Preferably, the mechanical seal device includes a mechanical seal seat sleeved on the side wall of the box body and a mechanical seal cover connected to the outer surface of the mechanical seal seat. The screw shaft on the screw conveyor passes through the mechanical seal seat and the mechanical seal cover, and a mechanical seal is arranged inside the mechanical seal seat and the mechanical seal cover, and the mechanical seal is adapted to the screw shaft.

[0014] Preferably, sealing rings are arranged between the mechanical seal seat and the screw shaft, between the mechanical seal cover and the screw shaft, between the mechanical seal and the screw shaft, between the mechanical seal and the mechanical seal seat, and between the mechanical seal seat and the mechanical seal cover.

[0015] Preferably, the screw conveyor includes a screw shaft and blades spirally wound around the screw shaft. A plurality of holes are arranged in a circle on the blades.

[0016] The present invention also provides an overflow pipe. The overflow pipe includes an installation pipe, a connecting pipe, an elbow pipe, a straight pipe, and a rubber pipe connected in sequence. The installation pipe is threadedly connected to the connecting pipe, so that the installation height of the installation pipe on the connecting pipe is adjustable.

[0017] Compared with the related technologies, the beneficial effects of the present utility model are as follows:

[0018] First, an overflow pipe is added, and the installation height of the installation pipe at the upper end of the overflow pipe on the connecting pipe is adjustable, so that the height adjustment of the liquid level in the box body can be realized, meeting different requirements and having better applicability;

[0019] Second, the pipes of the overflow pipe are connected by threads. On the one hand, the installation and disassembly are convenient. On the other hand, the height adjustment is simpler;

[0020] Third, the structure of the mechanical seal device is optimized to realize the dynamic seal of the spiral shaft on the screw conveyor, reducing the leakage risk during the operation of the sand washer and ensuring the cleanliness and hygiene of the on-site environment;

[0021] Fourth, the spiral blades with holes can effectively reduce the water content in the grinding medium, providing guarantee for the subsequent bagging. Description of the Drawings

[0022] Figure 1 is the structural schematic diagram of the grinding medium cleaning and separating device provided by the present utility model;

[0023] Figure 2 is Figure 1 the internal structural schematic diagram;

[0024] Figure 3 is the structural schematic diagram of the overflow pipe;

[0025] Figure 4 is the partial enlarged schematic diagram of the installation of the mechanical seal device;

[0026] Figure 5 is the structural schematic diagram of a single blanking plate forming the blade of the screw conveyor.

[0027] In the drawings: 1. Sand washer; 11. Box body; 12. Feed inlet; 13. Discharge outlet; 14. Screw conveyor; 141. Spiral shaft; 142. Blade; 143. Hole; 2. Moving trolley; 21. Universal wheel; 3. Connecting support; 4. Flushing device; 41. Flushing cover; 42. First flushing pipe; 43. Second flushing pipe; 44. Valve; 45. Sprinkler head; 5. Feed pipeline; 6. Overflow pipe; 61. Installation pipe; 62. Connecting pipe; 63. Elbow pipe; 64. Straight pipe; 641. First pipe; 642. Second pipe; 643. External thread; 644. First flange; 645. Second flange; 646. Spine; 65. Rubber pipe; 66. Hoop; 67. Inlet; 68. Outlet; 7. Mechanical seal device; 71. Mechanical seal seat; 72. Mechanical seal cover; 73. Mechanical seal; 74. Sealing ring; 75. Fastener. Detailed Embodiments

[0028] The present utility model will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. For the convenience of narration, words such as "upper", "lower", "left", and "right" hereinafter only indicate the same directions as the upper, lower, left, and right of the accompanying drawings themselves, and do not limit the structure.

[0029] As Figure 1 , Figure 2 shown, a grinding medium cleaning and separating device provided in this embodiment includes a sand washer 1, a movable trolley 2, a connecting support 3, a flushing device 4, a feed pipeline 5, an overflow pipe 6, and a mechanical seal device 7.

[0030] The bottom of the movable trolley 2 is provided with universal wheels 21, and the top is provided with a connecting support 3. The sand washer 1 is arranged on the top of the connecting support 3 and is inclined.

[0031] The sand washer 1 includes a box body 11, a feed inlet 12, a discharge outlet 13, and a screw conveyor 14. The screw conveyor 14 includes a screw shaft 141 and blades 142 spirally wound around the screw shaft 141. The blades 142 are formed by splicing a plurality of Figure 5 shown blanking plates. Three holes 143 are circumferentially arranged on each blanking plate, so that channels for sewage to flow downward are formed on the blades 142.

[0032] The screw conveyor 14 is rotatably arranged in the box body 11. The two ends of the screw shaft 141 of the screw conveyor 14 pass through the side walls of the box body 11 and are respectively installed on the connecting support 3 through mounting seats, end covers, and internally provided bearings. The lower end of the screw shaft 141 is rotatably connected to the side wall of the box body 11 through the mechanical seal device 7, and the upper end of the screw shaft 141 located outside the box body 11 is drivingly connected to a motor.

[0033] The lower end of the inclined box body 11 forms a sand washing tank. The volume of the sand washing tank is larger than that of the upper box body 11. The sand washing tank is used for feeding and accommodating sewage. The feed inlet 12 is arranged on the side wall of the sand washing tank, and the overflow pipe 6 is arranged in the sand washing tank. The feed inlet 12 is connected with a feed pipeline 5 for communicating with the sand discharge port of the grinding machine. The discharge outlet 13 is arranged on the bottom side wall of the upper end of the box body 11, and a discharge pipe is provided on the discharge outlet 13. A flushing port is opened on the top side wall of the upper end of the box body 11.

[0034] The flushing device 4 includes a flushing cover 41, a first flushing pipe 42, a second flushing pipe 43, a valve 44 and a nozzle 45. The flushing cover 41 is installed at the flushing port. The first flushing pipe 42 is installed in the flushing cover 41, and a plurality of nozzles 45 are arranged on one side of the first flushing pipe 42 facing the flushing port. The second flushing pipe 43 is L-shaped, and connects the first flushing pipe 42 to an external water source outside the box 11, and the valve 44 is arranged on the second flushing pipe 43.

[0035] like Figure 3 As shown, the overflow pipe 6 includes a mounting pipe 61, a connecting pipe 62, an elbow pipe 63, a straight pipe 64 and a rubber pipe 65 which are connected in sequence. A through hole is provided on the side wall of the sand washing tank for the straight pipe 64 to pass through. The top of the mounting pipe 61 forms the inlet 67, and the end of the rubber pipe 65 away from the straight pipe 64 forms the outlet 68. The height of the inlet 67 is higher than or equal to the height of the outlet 68 (when the elbow is rotated to the horizontal direction).

[0036] The installation pipe 61 is threadedly connected to the connecting pipe 62, the connecting pipe 62 is threadedly connected to the bent pipe 63, and the bent pipe 63 is threadedly connected to the straight pipe 64. The threaded connecting pipe 62 and the installation pipe 61 can adjust the height of the upper surface of the installation pipe 61 in a spiral manner, thereby realizing the adjustment of the liquid level height in the sand washing tank.

[0037] In order to further facilitate the disassembly and assembly of the overflow pipe 6, the straight pipe 64 includes a first pipe 641 and a second pipe 642. One end of the first pipe 641 is provided with an external thread 643 for connecting with the bent pipe 63, the other end of the first pipe 641 is provided with a first flange 644, one end of the second pipe 642 is provided with a second flange 645, and the outer circumferential surface of the other end of the second pipe 642 is provided with a thorn 646 for clamping the rubber tube 65, and the first flange 644 and the second flange 645 are connected to each other. The first pipe 641 passes through the through hole on the box body 11, and the first pipe 641 is welded to the box body 11 (such as Figure 3 As shown). The straight pipe 64 is a seamless steel pipe. The rubber pipe 65 is provided with a clamp 66 on the outer circumferential surface of the clamp 646. Part of the first pipe 641, the second pipe 642 and the rubber pipe 65 are placed outside the box 11 to discharge the sewage in the sand washing tank to other places such as the ditch.

[0038] like Figure 4As shown, the mechanical seal device 7 includes a mechanical seal seat 71 mounted on the side wall of the box body 11, and a mechanical seal cover 72 connected to the outer surface of the mechanical seal seat 71 by bolts. The screw shaft 141 on the screw machine 14 passes through the mechanical seal seat 71 and the mechanical seal cover 72. The mechanical seal seat 71 and the mechanical seal cover 72 are provided with a mechanical seal 73 inside, and the mechanical seal 73 is adapted to the screw shaft 141. The mechanical seal seat 71 is connected to the side wall of the box body 11 by a fastener 75, and the fastener 75 includes a sealing gasket, a bolt, a flat gasket, etc.

[0039] Sealing rings 74 are provided between the mechanical seal seat 71 and the screw shaft 141 , between the mechanical seal cover 72 and the screw shaft 141 , between the mechanical seal 73 and the screw shaft 141 , between the mechanical seal 73 and the mechanical seal seat 71 , and between the mechanical seal seat 71 and the mechanical seal cover 72 .

[0040] During operation, the motor drives the screw shaft 141 to rotate, and the grinding media and slurry enter the sand washing tank of the box body 11 from the feed port 12, because the water in the sand washing tank can perform preliminary cleaning and separation on the grinding media and slurry. The initially cleaned grinding media is driven by the blades 142 to gradually move upwards under the rotation of the screw shaft 141, and meets the water sprayed from the nozzle 45 at the position of the nozzle 45, further washing the slurry particles adhering to the grinding media, and the washed away slurry particles flow down from the holes 143 and gaps on the blades 142, return to the lower part of the box body 11, and then flow into the ditch through the overflow pipe 6. The cleaned grinding media continues to move upwards, enters the ton bag from the discharge port 13 for storage, and is reused next time.

[0041] The grinding medium separation device of the utility model is an auxiliary device of the vertical grinding mill. When the vertical grinding mill needs to be repaired, the grinding medium and slurry in the grinding mill are cleaned and separated, and then the grinding medium is manually bagged for subsequent use. Especially when the vertical grinding mill needs to be shut down for a long time for a three-year overhaul, the cleaning and separation device can effectively clean and separate the grinding medium, and enable the grinding medium to be directly put into the sand adding device for use after the water is filtered out, which can reduce the labor intensity and time of manual cleaning and bring convenience to the maintenance of the vertical grinding mill.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A grinding medium cleaning and separation device, comprising a sand washer (1), the sand washer (1) comprising a housing (11), one end of the housing (11) being provided with a feed inlet (12), and the other end of the housing (11) being provided with a discharge outlet (13), characterized in that: It also includes an overflow pipe (6), wherein the overflow pipe (6) includes an outlet (68) and an inlet (67) with an adjustable height, and the height of the inlet (67) is higher than or equal to the height of the outlet (68).

2. The grinding medium cleaning and separation device according to claim 1, characterized in that: The overflow pipe (6) comprises a mounting pipe (61), a connecting pipe (62), a bent pipe (63), a straight pipe (64) and a rubber pipe (65) which are connected in sequence. The straight pipe (64) passes through the side wall of the box body (11), so that parts of the straight pipe (64) and the rubber pipe (65) are placed outside the box body (11). The top of the mounting pipe (61) forms the inlet (67), and the end of the rubber pipe (65) away from the straight pipe (64) forms the outlet (68).

3. The grinding medium cleaning and separation device according to claim 2, characterized in that: The mounting pipe (61) is threadedly connected to the connecting pipe (62), the connecting pipe (62) is threadedly connected to the bent pipe (63), and the bent pipe (63) is threadedly connected to the straight pipe (64).

4. The grinding medium cleaning and separation device according to claim 2, characterized in that: The straight tube (64) comprises a first tube (641) and a second tube (642); one end of the first tube (641) is provided with an external thread (643) for connecting to the bent tube (63); the other end of the first tube (641) is provided with a first flange (644); one end of the second tube (642) is provided with a second flange (645); a clamping thorn (646) for clamping the rubber tube (65) is provided on the outer circumferential surface of the other end of the second tube (642); the first flange (644) and the second flange (645) are butt-connected; and the first tube (641) passes through the box body (11).

5. The grinding medium cleaning and separation device according to claim 1, characterized in that: The invention also comprises a flushing device (4), the flushing device (4) comprising a flushing cover (41), a first flushing pipe (42), a second flushing pipe (43), a valve (44) and a nozzle (45); a flushing port is provided on the side wall of the box body (11) where the discharge port (13) is provided; the flushing cover (41) is installed at the flushing port; the first flushing pipe (42) is installed in the flushing cover (41); and a plurality of nozzles (45) are arranged on one side of the first flushing pipe (42) facing the flushing port; the second flushing pipe (43) connects the first flushing pipe (42) to an external water source outside the box body (11); and the valve (44) is provided on the second flushing pipe (43).

6. The grinding medium cleaning and separation device according to claim 1, characterized in that: The sand washing machine (1) further comprises a screw machine (14) arranged in the housing (11), wherein a screw shaft on the screw machine (14) is rotatably connected to a side wall of the housing (11) where a feed port (12) is arranged via a mechanical sealing device (7).

7. The grinding medium cleaning and separation device according to claim 6, characterized in that: The mechanical seal device (7) comprises a mechanical seal seat (71) mounted on the side wall of the box body (11), and a mechanical seal cover (72) connected to the outer surface of the mechanical seal seat (71); the screw shaft on the screw machine (14) passes through the mechanical seal seat (71) and the mechanical seal cover (72); a mechanical seal (73) is provided inside the mechanical seal seat (71) and the mechanical seal cover (72); and the mechanical seal (73) is adapted to fit the screw shaft.

8. The grinding medium cleaning and separation device according to claim 7, characterized in that: Sealing rings (74) are provided between the mechanical seal seat (71) and the spiral shaft, between the mechanical seal cover (72) and the spiral shaft, between the mechanical seal (73) and the spiral shaft, between the mechanical seal (73) and the mechanical seal seat (71), and between the mechanical seal seat (71) and the mechanical seal cover (72).

9. The grinding medium cleaning and separation device according to claim 6, characterized in that: The screw machine (14) comprises a screw shaft (141) and a blade (142) spirally rotating around the screw shaft (141), wherein a plurality of holes (143) are circumferentially provided on the blade (142).

10. An overflow pipe, characterized in that: It comprises a mounting pipe (61), a connecting pipe (62), a bent pipe (63), a straight pipe (64) and a rubber pipe (65) which are connected in sequence, wherein the mounting pipe (61) is threadedly connected to the connecting pipe (62) so that the mounting height of the mounting pipe (61) on the connecting pipe (62) is adjustable.

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