Coal dressing medium drainage device

Abstract

The utility model belongs to the technical field of coal dressing medium drainage, and particularly discloses a coal dressing medium drainage device which comprises a machine body and a connecting assembly, a screen is arranged in the machine body, a plurality of baffles are arranged on the screen, a plurality of grooves are formed in the inner side of the machine body, one end of each baffle is connected with the corresponding groove in a clamped mode, and the other end of each baffle is fixed to the machine body through the connecting assembly. A feeding end is arranged on the machine body, a spraying assembly used for reducing dust is arranged above the feeding end, a discharging end is arranged on the machine body, a vibration motor is arranged on the machine body, one end of a baffle penetrates through the machine body to be connected to a groove in a clamped mode, and then the free end of the baffle is fixed to the machine body through a connecting assembly. The utility model aims to solve the problem of poor medium drainage effect caused by short retention time of materials on a screen due to lack of a baffle plate in the screen of the existing medium drainage screen.

Description

Technical Field

[0001] The utility model relates to the technical field of coal separation and de-mediation, in particular to a coal separation and de-mediation device. Background Art

[0002] Coal washing is the process of separating raw coal of different components and specific gravities into different grades through water flow and screening, and removing dust and waste rock, reducing ash and sulfur content. Coal washing is an indispensable link in coal processing. The coal after washing is called clean coal. In addition to achieving the purpose of environmental protection, coal washing can also improve the utilization rate of coal, etc. Coal washing equipment is an essential equipment for coal processing, mainly including de-mediating screens, conveyors, magnetic separators and filter presses.

[0003] The working principle of the coal de-mediation screen mainly relies on the vibration principle, which is achieved through the joint action of components such as the screen box, vibrator, spring support and motor. The vibrating screen is set so that the feed end is 15 degrees higher than the discharge end. When the motor is running, the vibrator generates an exciting force to make the screen box vibrate. This vibration causes the particles in the coal slime to separate according to size and weight. Under the action of the vibrator, the vibration generated by the screen box causes the material to vibrate and flush on the screen surface, thereby achieving material screening, dehydration, de-mediation and de-sliming. Usually, the screen of the de-mediation screen lacks a baffle, and the material stays on the screen for a short time, resulting in poor de-mediation effect. Utility Model Content

[0004] The utility model aims to provide a coal separation and de-mediation device to solve the problem that the existing de-mediation screen lacks baffles, the material stays on the screen for a short time, and thus the de-mediation effect is poor.

[0005] In order to achieve the above-mentioned purpose, the basic scheme provided by the utility model is: a coal preparation and de-intermediation device, including a body and a connecting assembly, a screen is provided on the body, a plurality of baffles are provided on the screen, a plurality of grooves are provided on the inner side of the body, one end of each baffle is clamped with the groove, and the other end of each baffle is fixed to the body through the connecting assembly, a feed end is provided on the body, a spray assembly for reducing dust is provided above the feed end, a discharge end is provided on the body, and a vibration motor is provided on the body.

[0006] The principle and beneficial effect of the utility model are as follows: according to the actual number of screen segments, connecting components and baffles are arranged at the segments, one end of the baffle is first penetrated through the machine body and clamped on the groove, and then the free end of the baffle is fixed to the machine body through the connecting component, the vibration motor is started, and the raw coal enters the de-intermediation device through the feeding end. Due to the exciting vibration provided by the vibration motor, the screen makes the screen make reciprocating linear motion, so as to screen the raw coal on the screen, and the raw coal after de-intermediation through the screen becomes clean coal, which is output from the discharging end. Since there is a baffle on the screen, the time that the material stays on the screen is increased. The spray component is used to reduce dust in the material screening process, and can also make the soluble matter in the material be carried away by the water flow, so as to increase the de-intermediation effect.

[0007] Option 2, which is the preferred basic option, includes a connecting assembly comprising a plurality of support blocks and pins, each support block is fixedly connected to the machine body, the baffle is connected through the support block, a limit block is hinged on the support block, the free end of the baffle is against the limit block, the support block and the free end of the limit block are fixed by a pin, first rotate the limit block to separate the free end of the limit block from the support block, then pass the baffle through the support block and the machine body, so that one end of the baffle is clamped in the groove, then rotate the limit block to make the free end of the baffle against the limit block, and then fix the free end of the limit block to the support block by a pin. This assembly is convenient for replacing the baffle.

[0008] Option three is the preferred basic option. The spray assembly includes a main pipe, which is located above the feed end. Several branch pipes 1 are fixedly connected to the main pipe, and several branch pipes 2 are fixedly connected to the main pipe. Each branch pipe 1 and branch pipe 2 are staggered. Each branch pipe 1 and branch pipe 2 are provided with a nozzle. Water enters branch pipe 1 and branch pipe 2 through the main pipe, and is sprayed on the raw coal through the nozzle, thereby increasing the spraying area and making the spraying more thorough, thereby promoting the separation of impurities and coal.

[0009] Plan 4 is the preferred basic plan. The inclination angle from the feed end to the discharge end is 1-5 degrees. The original vibrating screen has an inclination angle of 15 degrees from the feed end to the discharge end. The excessive slope leads to excessive flow of materials on the screen, and problems such as material accumulation and uneven distribution. By reducing the inclination angles of the feed end and the discharge end, the residence time of the material on the screen is increased, and the problems of material accumulation and uneven distribution are reduced.

[0010] Option 5 is the preferred option of the basic option. Each baffle is inclined toward the feeding end, and the height of each baffle is 2 cm, which reduces the material piled at the baffle.

[0011] Option six is ​​the preferred option of option three. The nozzle is a fan-shaped nozzle, which points downward and has a wide spraying range. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional diagram of a coal separation and de-intermediation device of the utility model;

[0013] Figure 2 This is a top view of a coal preparation and de-mediuming device of the utility model;

[0014] Figure 3 yes Figure 1 The enlarged view of point A in the middle;

[0015] Figure 4 yes Figure 2 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below through specific implementation methods:

[0017] The reference numerals in the drawings of the specification include: 1. machine body, 2. screen, 3. baffle, 4. support block, 5. limit block, 6. main pipe, 7. branch pipe 1, 8. branch pipe 2, 9. nozzle, 10. feed end, 11. discharge end, 12. pin shaft, 14. vibration motor.

[0018] Example

[0019] like Figures 1 to 4 As shown: A coal separation and de-intermediation device includes a body 1 and a connecting assembly. A screen 2 is provided in the body 1, and a plurality of baffles 3 are provided on the screen 2. A plurality of grooves are provided on the inner side of the body 1. One end of each baffle 3 is clamped with the groove, and the other end of each baffle 3 is fixed to the body 1 through a connecting assembly. The connecting assembly includes a plurality of support blocks 4 and a pin 12. Each support block 4 is fixed to the body 1. The baffle 3 is connected to the support block 4 through a pin 12. The support block 4 is hinged with a limit block 5. The free end of the baffle 3 is against the limit block 5. The support block 4 and the free end of the limit block 5 are fixed by a pin 12. There is a feed end 10, and a spray assembly for reducing dust is arranged above the feed end 10. The spray assembly includes a main pipe 6, and the main pipe 6 is located above the feed end 10. A plurality of branch pipes 1 7 are fixedly connected to the main pipe 6, and a plurality of branch pipes 2 8 are fixedly connected to the main pipe 6. Each branch pipe 1 7 and branch pipe 2 8 are staggered. Each branch pipe 1 7 and branch pipe 2 8 are provided with a nozzle 9, and the nozzle 9 is a fan-shaped nozzle. Each baffle 1 is inclined toward the feed end 10, and the height of each baffle 3 is 2 cm. A discharge end 11 is arranged on the machine body 1, and the inclination angle from the feed end 10 to the discharge end 11 is 1-5 degrees. A vibration motor 14 is arranged on the machine body 1.

[0020] The implementation method of this embodiment is as follows: firstly, the limit block 5 is rotated to separate the free end of the limit block 5 from the support block 4, the baffle 3 is passed through the support block 4 and the machine body 1, so that one end of the baffle 3 is clamped on the groove, and then the limit block 5 is rotated to make the free end of the baffle 3 abut against the limit block 5, and then the free end of the limit block 5 and the support block 4 are fixed by the pin shaft 12, and water enters the branch pipe 1 7 and the branch pipe 2 8 through the main pipe 6, and is sprayed on the raw coal entering the de-intermediation device through the nozzle 9, and the vibration motor 14 is started, and the raw coal passes through the feed end 1 0 enters the de-intermediation device. Due to the exciting vibration provided by the vibration motor 14, the screen 2 makes a reciprocating linear motion, thereby screening the raw coal on the screen 2. The raw coal after being de-intermediated by the screen 2 becomes clean coal, and the clean coal is output from the discharge end 11. When replacing the baffle 3, the limit block 5 is rotated to separate the free end of the limit block 5 from the support block 4, and the old baffle 3 is replaced. Then, the limit block 5 is rotated to make the free end of the baffle 3 abut against the limit block 5, and then the free end of the limit block 5 and the support block 4 are fixed by the pin 12.

[0021] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A coal separation and de-intermediation device, characterized in that: The invention comprises a machine body (1) and a connecting assembly, wherein a screen (2) is arranged inside the machine body (1), a plurality of baffles (3) are arranged side by side on the screen (2), a plurality of grooves are arranged on the inner side of the machine body (1), one end of each baffle (3) is engaged with the groove, and the other end of each baffle (3) is fixed to the machine body (1) through the connecting assembly, a feed end (10) is arranged on the machine body (1), a spray assembly for reducing dust is arranged above the feed end (10), a discharge end (11) is arranged on the machine body (1), and a vibration motor (14) is arranged on the machine body (1).

2. A coal separation and de-intermediation device according to claim 1, characterized in that The connection assembly comprises a plurality of support blocks (4) and a pin (12), each of the support blocks (4) being fixedly connected to the machine body (1), the baffle plate (3) being connected through the support block (4), a limit block (5) being hingedly connected to the support block (4), the free end of the baffle plate (3) being in contact with the limit block (5), and the free ends of the support block (4) and the limit block (5) being fixed by the pin (12).

3. A coal separation and de-intermediation device according to claim 1, characterized in that: The spray assembly comprises a main pipe (6), the main pipe (6) is located above the feed end (10), a plurality of branch pipes (7) are fixedly connected to the main pipe (6), a plurality of branch pipes (8) are fixedly connected to the main pipe (6), the branch pipes (7) and the branch pipes (8) are staggered, and each of the branch pipes (7) and the branch pipes (8) is provided with a spray head (9).

4. A coal separation and de-intermediation device according to claim 1, characterized in that: The inclination angle from the feeding end (10) to the discharging end (11) is 1-5 degrees.

5. A coal separation and de-intermediation device according to claim 1, characterized in that Each of the baffles (3) is inclined toward the discharge end (11), and the height of each of the baffles (3) is 2 cm.

6. A coal separation and de-intermediation device according to claim 3, characterized in that: The nozzle (9) is a fan-shaped nozzle.

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