Coal slurry centrifuge

Abstract

The utility model discloses a coal slurry centrifuge, which relates to the technical field of coal slurry treatment. The utility model comprises an outer cylinder, a rotating frame is installed inside the outer cylinder, a discharging mechanism is arranged between the outer cylinder and the rotating frame, and the discharging mechanism comprises a sleeve ring, a sliding plate and a telescopic rod. The coal slurry is placed in the rotating frame, and the sleeve ring is driven to move upward by extending the telescopic rod. The sliding plate is driven to move upward on the outer side wall of the outer cylinder and the rotating frame is driven to extend from the upper end of the outer cylinder by the movement of the sleeve ring. After the telescopic rod is continuously extended, the rotating frame is driven to rotate at the upper end of the sliding plate. The internal material can be completely discharged by rotating the tilted rotating frame, which solves the problems of low discharging efficiency and incomplete discharging of the existing coal slurry centrifuge after completing the centrifugal work.

Description

Technical Field

[0001] The utility model relates to the technical field of coal slurry processing, in particular to a coal slurry centrifuge. Background Art

[0002] Coal slurry is a suspension made of coal powder and water, which is often used in coal processing and combustion. Coal slurry centrifuge is a device that separates solid particles and liquid in coal slurry through centrifugal force to achieve the purpose of solid-liquid separation.

[0003] The working principle of the coal slurry centrifuge is based on the action of centrifugal force. When the coal slurry enters the rotating cylinder of the centrifuge, due to the high-speed rotation of the rotating cylinder, the solid particles in the coal slurry will be affected by the centrifugal force and move toward the wall of the centrifuge. At the same time, due to the high density of the solid particles, the solid particles will be deposited on the wall of the centrifuge to form a solid layer, while the lighter liquid will be discharged from the holes opened in the rotating cylinder. For example, the centrifuge drum and vertical centrifuge of patent publication number: CN102553730A.

[0004] However, the existing coal slurry centrifuges mostly use three methods to remove the fixed particles in the rotating cylinder: first, place a filter screen in the rotating cylinder, remove the filter screen after the centrifugal action is completed, and discharge the solid particles in the filter screen; second, manually shovel out the fixed particles after the centrifugal action is completed; third, use a suction structure to suck out the fixed particles in the rotating cylinder. Among the three discharge methods, only the suction structure uses a mechanical mechanism, which is more convenient, but the suction effect of the suction structure is poor when large-volume fixed particles are required, and fixed particles will remain in the rotating cylinder. The remaining solid particles still need to be manually cleaned.

[0005] In order to increase the discharge efficiency of solid particles in a rotating cylinder so that the solid particles in the rotating cylinder can be completely discharged at one time, a coal slurry centrifuge is now provided. Utility Model Content

[0006] The utility model aims to provide a coal slurry centrifuge to solve the problems of low discharge efficiency and incomplete discharge of existing coal slurry centrifuges after completing centrifugal work as mentioned in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal slurry centrifuge, comprising an outer cylinder, a rotating frame installed inside the outer cylinder, a discharge mechanism arranged between the outer cylinder and the rotating frame, the discharge mechanism comprising a sleeve ring, a sliding plate and a telescopic rod, the coal slurry is placed in the rotating frame, the sleeve ring is driven to move upward by extending the telescopic rod, the sliding plate is driven to move upward on the outer side wall of the outer cylinder and the rotating frame is driven to extend from the upper end of the outer cylinder by the movement of the sleeve ring, after the telescopic rod continues to extend, the rotating frame is driven to rotate at the upper end of the sliding plate, and the internal material can be completely discharged by rotating the tilted rotating frame.

[0008] As a preferred technical solution of the utility model, the sliding plate is slidably installed on the outer side wall of the outer cylinder, the ring is sleeved on the outer side wall of the rotating frame, and one side of the ring is rotatably connected to the upper end of the sliding plate, the output rods of the two telescopic rods are fixedly connected to the two sides of the ring, and the lower end of the telescopic rod is rotatably connected to the bottom of the outer side wall of the outer cylinder, and the ring is driven to move upward by extending the telescopic rod. After the sliding plate slides to the top, the sliding plate fixes one side of the ring, and the telescopic rod continues to extend to drive the ring to rotate, and the rotating frame can be tilted to discharge materials through the rotation of the ring.

[0009] As a preferred technical solution of the utility model, the telescopic rod is configured to be hydraulically telescopic.

[0010] As a preferred technical solution of the utility model, a sealing cover for sealing the outer cylinder is rotatably mounted on the upper end of the outer cylinder, and the outer cylinder is sealed by the sealing cover.

[0011] As a preferred technical solution of the utility model, a first motor for driving the rotating frame to rotate is fixedly installed inside the outer cylinder, a slot matching the output shaft of the first motor is opened at the lower end of the rotating frame, a chuck for cooperating with the rotation of the rotating frame is rotatably installed at the lower end of the cover, the rotating frame is driven to rotate by the first motor, and the rotation of the rotating frame is coordinated by the chuck.

[0012] As a preferred technical solution of the utility model, the outer side wall of the outer cylinder is fixedly connected with a drain pipe for discharging liquid, and the separated liquid is discharged through the drain pipe.

[0013] As a preferred technical solution of the utility model, the outer wall of the outer cylinder is fixedly connected with a bracket, the upper end of the bracket is rotatably installed with a material guide plate for guiding materials, and the bracket is fixedly installed with a second motor for driving the material guide plate to rotate, so that the fixed particles in the rotating frame are guided through the material guide plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model drives the sleeve ring to move upward by extending the telescopic rod. After the sliding plate slides to the uppermost position, the sliding plate fixes one side of the sleeve ring. The telescopic rod continues to extend to drive the sleeve ring to rotate. The rotating frame can be tilted and the material can be completely discharged through the rotation of the sleeve ring, thereby solving the problems of low discharge efficiency and incomplete discharge of materials in the existing coal slurry centrifuge after completing the centrifugal work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a centrifuge according to an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the operating structure of the discharging mechanism of the embodiment of the utility model;

[0018] Figure 3 This is a cross-sectional view of the outer cylinder of an embodiment of the utility model.

[0019] In the figure: 1, outer cylinder; 11, sealing cover; 111, chuck; 12, discharge pipe; 2, rotating frame; 3, discharge mechanism; 31, collar; 32, sliding plate; 33, telescopic rod; 4, bracket; 41, guide plate. DETAILED DESCRIPTION

[0020] 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.

[0021] Example

[0022] See also Figure 1-3 , this embodiment provides a coal slurry centrifuge, including an outer cylinder 1 of the centrifuge.

[0023] Specifically, Figure 1 As shown, a placement groove is provided at the upper end of the outer cylinder 1 , and a sealing cover 11 is rotatably installed on one side of the upper end of the outer cylinder 1 , and the sealing cover 11 can be rotated to close the placement groove of the outer cylinder 1 .

[0024] In order to separate the coal slurry into solid and liquid, a rotating frame 2 is movably installed inside the outer cylinder 1. Figure 1 and Figure 2 As shown, the outer wall of the rotating frame 2 is provided with a plurality of through holes. Figure 3 As shown, a first motor is fixedly installed inside the outer cylinder 1, and a slot is provided at the lower end of the rotating frame 2. The slot of the rotating frame 2 can be engaged with the output shaft of the first motor. When the motor is started, the rotating frame 2 can be driven to rotate inside the outer cylinder 1. A drainage hole is provided on the outer wall of the outer cylinder 1, and a drainage pipe 12 is fixedly connected to the drainage hole. The drainage pipe 12 is communicated with the inside of the outer cylinder 1 and is used to discharge the liquid inside the outer cylinder 1.

[0025] When performing solid-liquid separation, the rotating frame 2 is placed in the outer cylinder 1, the output shaft of the first motor is engaged in the slot below the rotating frame 2, the coal slurry is put into the rotating frame 2, and the first motor is started to drive the rotating frame 2 to rotate. The high-speed rotating rotating frame 2 can generate centrifugal force to discharge the liquid in the coal slurry from the through hole of the rotating frame 2. Figure 3 As shown, the discharged liquid enters the outer tube 1, and the inner floor of the outer tube 1 is set as an inclined surface inclined toward the discharge pipe 12. The liquid entering the outer tube 1 slides toward the discharge pipe 12 through the inclined surface and is then discharged from the discharge pipe 12, completing the liquid guiding function of the discharge pipe 12.

[0026] In order to prevent the rotating frame 2 from contacting the cover 11 when rotating, causing wear on the cover 11 and the rotating frame 2, a chuck 111 is rotatably mounted on the lower end of the cover 11. When the cover 11 closes the outer cylinder 1, the chuck 111 is engaged with the upper end of the rotating frame 2, and when the rotating frame 2 rotates, the chuck 111 rotates synchronously with the rotating frame 2.

[0027] After the solid-liquid separation of the coal slurry is completed, in order to completely discharge the remaining fixed particles in the rotating frame 2, the outer cylinder 1 and the rotating frame 2 are provided with a discharge mechanism 3.

[0028] Specifically, the discharging mechanism 3 includes a collar 31, a sliding plate 32 and a telescopic rod 33, wherein the collar 31 is sleeved on the outer wall of the rotating frame 2, and a limit ring is installed on the outer wall of the rotating frame 2, and the limit ring fits on the top of the collar 31. The sliding plate 32 is slidably clamped on the outer wall of the outer cylinder 1, and one side of the collar 31 is rotatably connected to the upper end of the sliding plate 32. The telescopic rod 33 is set as a hydraulic rod, and the telescopic rod 33 is set in two, the lower ends of the two telescopic rods 33 are respectively rotatably connected to the lower side of the outer wall of the outer cylinder 1, and the two telescopic rods 33 are symmetrically arranged around the symmetry axis of the outer cylinder 1. The upper end output shafts of the two telescopic rods 33 are respectively rotatably connected to the two sides of the collar 31.

[0029] When discharging, the output shaft of the telescopic rod 33 is controlled to extend, so that the telescopic rod 33 is extended as a whole. The extension of the telescopic rod 33 drives the collar 31 to move upward, that is, drives the rotating frame 2 to move upward and extend from the placement groove at the upper end of the outer cylinder 1. The movement of the collar 31 drives the sliding plate 32 to move upward on the outer wall of the outer cylinder 1. The outer wall of the outer cylinder 1 is provided with a limit block, and the sliding plate 32 slides and engages on the limit block, and the sliding of the sliding plate 32 is limited by the limit block. After the sliding plate 32 slides upward to the top, the sliding plate 32 fixes one side of the collar 31. At this time, the continuous extension of the telescopic rod 33 can drive the collar 31 to rotate above the sliding plate 32. The rotation of the collar 31 even if the rotating frame 2 is tilted, after the tilt angle of the rotating frame 2 is greater than 90 degrees, the fixed particles in the rotating frame 2 can be discharged from the opening of the rotating frame 2 by their own gravity.

[0030] When the fixed particles are discharged, the fixed particles will fall on the sliding plate 32. The small fixed particles are easily stuck at the connection between the sliding plate 32, the outer cylinder 1 and the rotating frame 2. In order to guide the discharge of the fixed particles, as shown in FIG. Figure 1 , Figure 2 and Figure 3 As shown, the outer wall of the outer cylinder 1 is fixedly connected with a bracket 4, and the upper end of the bracket 4 is rotatably mounted with a guide plate 41.

[0031] Specifically, a second motor is fixedly mounted on the upper end of the bracket 4, and the output shaft of the second motor is fixedly connected to the guide plate 41. When the second motor is started, the rotation of the guide plate 41 can be controlled. After the sliding plate 32 slides upward to the uppermost position, the rotation connection between the sliding plate 32 and the collar 31 is aligned with the rotation center of the guide plate 41.

[0032] When in use, the guide plate 41 is controlled by the second motor to rotate parallel to the upper end of the outer cylinder 1. After the rotating frame 2 moves upward, the guide plate 41 is engaged at the upper edge of the rotating frame 2. When the rotating frame 2 rotates, the guide plate 41 is controlled by the second motor to rotate synchronously, so that solid particles can be guided through the guide plate 41 when discharged, preventing small fixed particles from contacting the sliding plate 32.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal slurry centrifuge, comprising an outer cylinder (1), characterized in that: A rotating frame (2) is installed inside the outer cylinder (1), and a discharge mechanism (3) is arranged between the outer cylinder (1) and the rotating frame (2), and the discharge mechanism (3) comprises a sleeve ring (31), a sliding plate (32) and a telescopic rod (33); The coal slurry is placed in the rotating frame (2), the telescopic rod (33) is extended to drive the collar (31) to move upward, the movement of the collar (31) drives the sliding plate (32) to move upward on the outer wall of the outer cylinder (1) and drives the rotating frame (2) to extend from the upper end of the outer cylinder (1), the telescopic rod (33) continues to extend to drive the rotating frame (2) to rotate on the upper end of the sliding plate (32), and the internal materials can be discharged by rotating the tilted rotating frame (2).

2. A coal slurry centrifuge according to claim 1, characterized in that: The sliding plate (32) is slidably mounted on the outer wall of the outer cylinder (1); the sleeve (31) is sleeved on the outer wall of the rotating frame (2); one side of the sleeve (31) is rotatably connected to the upper end of the sliding plate (32); the output rods of the two telescopic rods (33) are fixedly connected to the two sides of the sleeve (31); and the lower ends of the telescopic rods (33) are rotatably connected to the lower side of the outer wall of the outer cylinder (1).

3. A coal slurry centrifuge according to claim 2, characterized in that: The telescopic rod (33) is configured to be hydraulically telescopic.

4. A coal slurry centrifuge according to claim 2, characterized in that: A sealing cap (11) for sealing the outer cylinder (1) is rotatably mounted on the upper end of the outer cylinder (1).

5. A coal slurry centrifuge according to claim 4, characterized in that: A first motor for driving the rotating frame (2) to rotate is fixedly mounted inside the outer cylinder (1); a slot matching the output shaft of the first motor is provided at the lower end of the rotating frame (2); and a chuck (111) for cooperating with the rotating frame (2) to rotate is rotatably mounted at the lower end of the cover (11).

6. A coal slurry centrifuge according to claim 5, characterized in that: A liquid discharge pipe (12) for discharging liquid is fixedly connected to the outer wall of the outer cylinder (1).

7. A coal slurry centrifuge according to claim 6, characterized in that: The outer wall of the outer cylinder (1) is fixedly connected to a bracket (4), the upper end of the bracket (4) is rotatably mounted with a material guide plate (41) for guiding materials, and the bracket (4) is fixedly mounted with a second motor for driving the material guide plate (41) to rotate.

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