Mill with mill tail convenient to overhaul

Abstract

The mill comprises a machine shell, a discharging opening used for discharging is formed in the tail portion of the machine shell, a heavy hammer flap valve is connected to the lower portion of the discharging opening, a butt joint pipe opening is formed in the lower end of the heavy hammer flap valve, a pulling buckle is arranged on the lower surface of the butt joint pipe opening, and the pulling buckle is connected with the discharging opening. A movable shaft is arranged between the upper end of the pulling buckle and the lower surface of the butt joint pipe opening, and one side of the pulling buckle is connected with a tension spring. A heavy hammer flap valve is installed at the position of the mill tail of the mill, a butt joint pipe opening is formed in the lower end of the heavy hammer flap valve, a pipeline is installed through the butt joint pipe opening, a pulling buckle movably connected with the bottom of the butt joint pipe opening and an S-shaped pulling buckle are used for buckling a chuck on the surface of a first pipe pass, the first pipe pass is buckled and grabbed, and therefore the pipeline can be installed through the butt joint pipe opening. And meanwhile, the pulling buckle is used, so that the first tube pass can be conveniently separated and disassembled, and the tail grinding assembly can be conveniently disassembled and overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of cement processing, in particular to a grinding mill which is convenient for repairing the grinding tail. Background Art

[0002] Cement is an important building material. During the production and processing of cement, mills are needed for processing. According to the grinding media and grinding materials, mills can be divided into: column mill, rod mill, tube mill, autogenous mill, mortar roller mill, vertical mill, multi-layer vertical mill, vertical roller mill, generalized disc mill, DMC mill, etc. Ball mills are widely used in cement industry production. The grinding action can be divided into two parts: one is the grinding action between the grinding bodies and between the grinding bodies and the cylinder, and the other is the impact action when the grinding bodies fall. Traditional cement mills discharge materials at the end of the mill.

[0003] The existing publication number CN217962760U discloses a cement mill, including a base, an upper frame and a ball mill, the ball mill is located between the base and the upper frame, the two ends of the ball mill connecting the base and the upper frame are respectively provided with bearings, one side of the ball mill is connected with a feed hopper, a rotating motor is installed in the middle of the base, the output shaft of the rotating motor is fixedly connected with a gear, two ends of the outer side wall of the ball mill are provided with gear rings, the gear rings are meshed with the gears, a water tank is installed below the ball mill, a water pump is installed inside the upper frame, a nozzle is installed in the middle of the upper frame, the water pump is connected to the water tank and the nozzle respectively, a vertical first filter plate and a second filter plate are provided inside the ball mill, the first filter plate divides the inside of the ball mill into a first grinding chamber and a second grinding chamber, a finished product chamber is provided on one side of the base, and a discharge port is provided above the finished product chamber. The equipment is cooled by water cooling and air cooling to improve work efficiency.

[0004] The cement mill mentioned above realizes heat dissipation of the cement mill by setting a water tank and using water cooling and air cooling for cooling, and sets a discharge port above the finished product chamber for material discharge. However, the existing cement mill is prone to damage to the mill tail during the discharge process, and it is not convenient to disassemble the mill tail pipe during the maintenance of the mill tail, so that after the mill tail is damaged, it cannot be replaced and repaired in time, resulting in a shortened service life of the mill tail.

[0005] Therefore, those skilled in the art provide a mill that is convenient for overhauling the mill tail to solve the problems raised in the above background technology. Utility Model Content

[0006] The purpose of the utility model is to provide a grinding mill which is convenient for overhauling the tail mill, so as to solve the problem that the tail mill of the existing cement mill proposed in the above background technology is easily damaged during the discharging process, and it is not convenient to disassemble the tail mill branch pipe during the overhaul of the tail mill, so that after the tail mill is damaged, it cannot be replaced and overhauled in time, resulting in a shortened service life of the tail mill.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A grinding mill convenient for maintenance at the end of the mill comprises: a housing, a discharge port for discharging materials is installed at the rear of the housing, a heavy hammer flap valve is connected below the discharge port, a butt joint is installed at the lower end of the heavy hammer flap valve, a lever is provided on the lower surface of the butt joint, a movable shaft is provided between the upper end of the lever and the lower surface of the butt joint, a tension spring is connected to one side of the lever, and the lever is rotatably connected to the bottom of the butt joint through the movable shaft;

[0009] A first pipe pass is embedded and installed on the center line of the butt joint, a sealing member for sealing is provided at the junction of the butt joint and the first pipe pass, and a chuck is fixedly provided on the surface of the first pipe pass;

[0010] The lower end of the first pipe pass is connected to the second pipe pass, the outer wall of the first pipe pass is integrally provided with a flange, the outer side of the second pipe pass is provided with a fine-thread screw, and the upper end of the fine-thread screw is threadedly sleeved with a nut, and the upper end outer wall of the second pipe pass is sleeved with a sealing ring gasket.

[0011] As a further solution of the utility model, a base is installed at the bottom of the casing, and the casing and the discharge port are located on the same straight line.

[0012] As a further solution of the utility model, the outer diameter of the upper end of the first pipe pass is consistent with the inner diameter of the butt joint port, and the first pipe pass is connected to the weight flap valve through the butt joint port.

[0013] As a further solution of the utility model, the pull buckle is connected to the butt joint through a movable shaft, and a rotational connection is formed between the pull buckle and the movable shaft.

[0014] As a further solution of the utility model, the pull buckles are distributed in a triangular shape with respect to the symmetrical center line of the butt joint, adjacent pull buckles are elastically connected by tension springs, and the outer shape of the pull buckles is "S"-shaped.

[0015] As a further solution of the utility model, the inner wall of the second pipe pass is provided with a wedge, and a pressure pad is embedded and installed inside the wedge, a wear-resistant inner tube is sleeved inside the wedge, and a stop step is provided on the inner wall of the wear-resistant inner tube.

[0016] As a further solution of the utility model, a threaded connection is formed between the wear-resistant inner tube and the wedge opening, and the width of the stop step is consistent with the thickness of the inner edge of the wedge opening.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. Install a heavy hammer flap valve at the tail of the mill, and set a butt joint at the lower end of the heavy hammer flap valve. Install the pipeline through the butt joint. Use the lever that is movably connected at the bottom of the butt joint to buckle the chuck on the surface of the first pipe pass with the "S"-shaped lever to buckle the first pipe pass to tighten the first pipe pass and complete the installation of the first pipe pass. At the same time, the lever also facilitates the disassembly of the first pipe pass, which is beneficial to the disassembly and maintenance of the tail assembly.

[0019] 2. The mill tail pipeline is divided into a first pipe pass and a second pipe pass. A fine-thread screw is arranged between the first pipe pass and the second pipe pass. The first pipe pass and the second pipe pass can be installed, connected and disassembled by utilizing the installation connection between the fine-thread screw and the flange. The pipeline can be disassembled in sections, and the pipe pass with severe wear can be inspected and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic diagram of the structure of a grinding mill which is convenient for maintenance of the grinding tail.

[0021] Figure 2 The present invention is a schematic diagram of the installation structure between the mill butt joint pipe port and the first pipe pass for facilitating the maintenance of the mill tail.

[0022] Figure 3 The present invention is a second perspective structural schematic diagram of the butt joint pipe port and the first pipe pass in a mill for facilitating the maintenance of the mill tail.

[0023] Figure 4 The invention is a schematic diagram of the installation structure of the first tube pass and the second tube pass in a grinding mill which is convenient for the maintenance of the grinding tail.

[0024] Figure 5 The present invention is a schematic diagram of the cross-sectional structure of the second tube pass in a grinding mill which is convenient for maintenance of the grinding tail.

[0025] In the figure: 1. machine casing; 2. machine base; 3. discharge port; 4. heavy hammer flap valve; 5. butt joint; 501. lever; 502. movable shaft; 503. tension spring; 6. first pipe pass; 7. second pipe pass; 701. wedge; 702. pressure pad; 703. wear-resistant inner pipe; 704. stop step; 8. seal; 9. chuck; 10. fine-thread screw; 11. flange; 12. nut; 13. sealing gasket. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 to Figure 5 The embodiment of the utility model provides a grinding mill that is convenient for maintenance at the end of the grinding mill, comprising: a casing 1, a discharge port 3 for discharging materials is installed at the tail of the casing 1, and a heavy hammer flap valve 4 is connected below the discharge port 3, a base 2 is installed at the bottom of the casing 1, the casing 1 and the discharge port 3 are located on the same straight line, and a butt joint port 5 is installed at the lower end of the heavy hammer flap valve 4;

[0028] Specifically, a heavy hammer flap valve 4 is installed below the discharge port 3, and the heavy hammer flap valve 4 is used to open and close the material discharge. A butt joint 5 is installed at the lower end of the heavy hammer flap valve 4, and the butt joint 5 is connected to the pipe for discharging below;

[0029] A first pipe pass 6 is fitted and installed on the center line of the butt joint 5, a lever 501 is provided on the lower surface of the butt joint 5, a movable shaft 502 is provided between the upper end of the lever 501 and the lower surface of the butt joint 5, a tension spring 503 is connected to one side of the lever 501, the lever 501 is rotatably connected to the bottom of the butt joint 5 through the movable shaft 502, a sealing member 8 for sealing is provided at the junction of the butt joint 5 and the first pipe pass 6, the outer diameter of the upper end of the first pipe pass 6 is consistent with the inner diameter of the butt joint 5, and the first pipe pass 6 is connected to the heavy hammer flap valve 4 through the butt joint 5;

[0030] A chuck 9 is fixedly arranged on the surface of the first pipe 6, and the pull buckle 501 is connected to the butt joint 5 through a movable shaft 502, and the pull buckle 501 and the movable shaft 502 are rotatably connected, the pull buckles 501 are distributed in a triangular shape with respect to the symmetric center line of the butt joint 5, and adjacent pull buckles 501 are elastically connected through tension springs 503, and the outer shape of the pull buckle 501 is "S"-shaped;

[0031] Specifically, the first pipe side 6 is installed by using the docking port 5, and the "S"-shaped pull buckle 501 is used to buckle the chuck 9 on the surface of the first pipe side 6, thereby locking and installing the first pipe side 6. The tension spring 503 is used to pull between adjacent pull buckles 501. The tension spring 503 can increase the elasticity of the pull buckle 501, and the tightness between the pull buckles 501 is increased by the tension spring 503, thereby improving the stability of the installation of the first pipe side 6. During use, the first pipe side 6 is installed in the interior of the docking port 5, and the sealing member 8 is blocked at the joint between the first pipe side 6 and the docking port 5 to increase the sealing performance. The pull buckle 501 is pulled outward, and the tension spring 503 is pulled during the opening process, so that the three groups of pull buckles 501 are opened until the chuck 9 on the first pipe side 6 enters the inner side of the pull buckle 501. After the pull buckle 501 is released, the "S"-shaped pull buckle 501 can grab the chuck 9, thereby stably installing the first pipe side 6 on the docking port 5.

[0032] The lower end of the first pipe side 6 is connected to the second pipe side 7, the outer wall of the first pipe side 6 is integrally provided with a flange 11, the outer side of the second pipe side 7 is provided with a fine thread screw 10, and the upper end of the fine thread screw 10 is threadedly sleeved with a nut 12, and the upper end outer wall of the second pipe side 7 is sleeved with a sealing ring gasket 13;

[0033] Specifically, the pipeline for conveying materials is divided into a first pipe side 6 and a second pipe side 7. The first pipe side 6 and the second pipe side 7 brackets are docked and installed through a fine-thread screw 10. During the installation process, the lower end of the first pipe side 6 is docked with the upper end of the second pipe side 7. The fine-thread screw 10 will be inserted into the flange 11 and the fine-thread screw 10 will be locked with a nut 12, so that the first pipe side 6 and the second pipe side 7 are assembled and installed together.

[0034] The inner wall of the second pipe side 7 is provided with a wedge opening 701, and a pressure pad 702 is installed in the wedge opening 701, and a wear-resistant inner tube 703 is sleeved in the wedge opening 701. The inner wall of the wear-resistant inner tube 703 is provided with a stop step 704, and the wear-resistant inner tube 703 and the wedge opening 701 form a threaded connection, and the width of the stop step 704 is consistent with the thickness of the inner edge of the wedge opening 701;

[0035] Specifically, the inner wall of the second pipe leg 7 is provided with a wedge mouth 701, and the wear-resistant inner tube 703 is installed in the second pipe leg 7 by utilizing the threaded connection between the wedge mouth 701 and the wear-resistant inner tube 703. The wear-resistant inner tube 703 is used to increase the wear resistance of the inner wall of the second pipe leg 7, extend the service life of the pipeline, and reduce damage to the pipeline. During use, the wear-resistant inner tube 703 is docked and inserted into the second pipe leg 7, and the wear-resistant inner tube 703 is installed in the second pipe leg 7 by utilizing the threaded connection between the wear-resistant inner tube 703 and the wedge mouth 701, until the stop step 704 abuts against the wedge mouth 701, thereby completing the installation of the wear-resistant inner tube 703.

[0036] The working principle of the utility model is:

[0037] When using the utility model, the first pipe side 6 is installed in an embedded manner inside the docking port 5, the sealing member 8 will block the docking place between the first pipe side 6 and the docking port 5 to increase the sealing performance, and the pull buckle 501 is pulled outward. During the pulling process, the tension spring 503 will be pulled, so that the three sets of pull buckles 501 are opened until the chuck 9 on the first pipe side 6 enters the inner side of the pull buckle 501. After the pull buckle 501 is released, the "S"-shaped pull buckle 501 can grab the chuck 9, thereby stably installing the first pipe side 6 on the docking port 5, and then, the wear-resistant inner tube 703 is docked and inserted into the interior of the second pipe side 7, and the wear-resistant inner tube 703 is installed in the second pipe side 7 by utilizing the threaded connection between the wear-resistant inner tube 703 and the wedge 701. Inside, until the stop step 704 abuts against the wedge 701, thereby completing the installation of the wear-resistant inner tube 703, and the material moves from the inside of the casing 1 to the discharge port 3, and is discharged into the weight hammer flap valve 4 through the discharge port 3, and enters the first pipe side 6 and the second pipe side 7 through the weight hammer flap valve 4 and the docking port 5, thereby completing the discharge. Secondly, when inspecting the tail of the mill, after removing the fine-grained screw 10, the first pipe side 6 and the second pipe side 7 are disassembled separately, and then the wear-resistant inner tube 703 inside the second pipe side 7 is disassembled and replaced, and then the buckle 501 is pulled outward to make the first pipe side 6 detach from the docking port 5, completing the disassembly and replacement of the first pipe side 6, and in this way, the inspection and replacement of the discharge mechanism of the tail of the mill is completed.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mill that is convenient for repairing the mill tail, comprising: A casing (1), wherein a discharge port (3) for discharging materials is installed at the rear of the casing (1), and a heavy hammer flap valve (4) is connected below the discharge port (3), characterized in that a butt joint port (5) is installed at the lower end of the heavy hammer flap valve (4), a lever (501) is provided on the lower surface of the butt joint port (5), a movable shaft (502) is provided between the upper end of the lever (501) and the lower surface of the butt joint port (5), a tension spring (503) is connected to one side of the lever (501), and the lever (501) is rotatably connected to the bottom of the butt joint port (5) through the movable shaft (502); A first pipe pass (6) is fitted and installed on the center line of the butt joint (5), a sealing member (8) for sealing is provided at the junction of the butt joint (5) and the first pipe pass (6), and a chuck (9) is fixedly provided on the surface of the first pipe pass (6); The lower end of the first pipe side (6) is connected to the second pipe side (7); the outer wall of the first pipe side (6) is integrally provided with a flange (11); the outer side of the second pipe side (7) is provided with a fine-thread screw (10); the upper end of the fine-thread screw (10) is threadedly sleeved with a nut (12); and the upper end outer wall of the second pipe side (7) is sleeved with a sealing ring gasket (13).

2. A mill that is convenient for overhauling the mill tail according to claim 1, characterized in that: A base (2) is installed at the bottom of the casing (1), and the casing (1) and the discharge port (3) are located on the same straight line.

3. A mill that is convenient for overhauling the mill tail according to claim 1, characterized in that: The outer diameter of the upper end of the first pipe pass (6) matches the inner diameter of the butt joint (5), and the first pipe pass (6) is connected to the weight flap valve (4) through the butt joint (5).

4. A mill for easy maintenance of the mill tail according to claim 1, characterized in that: The pull button (501) is connected to the butt joint (5) via a movable shaft (502), and a rotation connection is formed between the pull button (501) and the movable shaft (502).

5. A mill for easy maintenance of grinding tail according to claim 1, characterized in that: The pull buckles (501) are distributed in a triangular shape with respect to the symmetrical center line of the butt joint (5), and adjacent pull buckles (501) are elastically connected via tension springs (503). The outer shape of the pull buckles (501) is "S"-shaped.

6. A mill for easy maintenance of grinding tail according to claim 1, characterized in that: The inner wall of the second pipe side (7) is provided with a wedge opening (701), and a pressure pad (702) is embedded and installed inside the wedge opening (701). A wear-resistant inner tube (703) is sleeved inside the wedge opening (701), and a stop step (704) is provided on the inner wall of the wear-resistant inner tube (703).

7. A mill for easy maintenance of the mill tail according to claim 6, characterized in that: The wear-resistant inner tube (703) and the wedge opening (701) are threadedly connected, and the width of the stop step (704) is consistent with the thickness of the inner edge of the wedge opening (701).

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