CN210253015U - Raw coal directly inserts screening plant who washes - Google Patents

Abstract

The utility model discloses a raw coal directly inserts screening plant who washes, include: the frame is horizontally arranged, and the support rods are vertically arranged and used for supporting the frame; the drum screen is obliquely arranged and is positioned in the frame; the frame is used for supporting the rotary screen, the rotary screen is positioned beside the coal chute, the higher end of the rotary screen is a coal inlet, the coal inlet is used for raw coal in the coal chute to enter the rotary screen, the lower end of the rotary screen is provided with a coal outlet, the coal outlet is used for discharging large blocks of coal gangue, the rotary screen is used for screening the coal gangue on the screen surface, turning and rolling the coal gangue, discharging qualified coal gangue through screen holes, and discharging unqualified large blocks of coal gangue through the coal outlet; the utility model discloses can directly carry out the coal washer with raw coal and go into and wash, need not artifically pick bold coal gangue, reduce the cost of labor, improve work effect.

Description

Raw coal directly inserts screening plant who washes

[ technical field ] A method for producing a semiconductor device

The utility model belongs to mining production field especially relates to a raw coal directly inserts screening plant who washes.

[ background of the invention ]

The raw coal washing processing refers to that the raw coal which is extracted from the underground and contains gangue and other impurities is subjected to hand separation, screening and washing to remove the impurities and the gangue, so that the ash content, phosphorus, sulfur and other components in the coal are reduced to the allowable content specified by the state. The manual selection is to manually pick out large pieces of gangue and impurities in coal, the gangue content of the coal blocks is required to be reduced to 1% -2%, and the coal content of the picked gangue generally does not exceed 1%. Drying and screening: the drying is to remove water, and a natural drying method is generally adopted. The screening of coal is to separate the coal with different grain size by a group of sieves with different apertures through the action of vibration. The gangue cannot be directly selected by screening, but the quality of the coal can be indirectly improved. For example, the pyrite particles with higher hardness can be mostly concentrated in the lump coal by screening, and the pyrite particles can be conveniently sorted out by a manual method.

The raw coal produced by the existing coal mine needs to be washed in a coal preparation plant, and because the raw coal produced by the coal mine has large blocks of coal gangue, a coal washer of the coal preparation plant can only wash the raw coal with the granularity of below 50mm, so the coal washer can not directly wash the raw coal, and the large blocks of coal gangue can be manually picked and sorted to enter the coal washer for washing.

[ Utility model ] content

The utility model aims at providing a raw coal directly inserts screening plant who washes to solve the unable direct access problem of washing of raw coal.

The utility model adopts the following technical scheme: a raw coal direct-washing screening device, comprising:

a frame which is horizontally arranged, a plurality of frame bodies are arranged,

a plurality of support rods vertically arranged for supporting the frame;

the drum screen is obliquely arranged and is positioned in the frame;

wherein, the frame is used for supporting the drum sieve, the drum sieve is located the side of chute, its higher one end is for going into the coal mouth, go into the coal mouth and be used for the raw coal entering drum sieve in the chute, the coal outlet has been seted up to the lower one end of drum sieve, the coal outlet is used for bold coal gangue to discharge, the drum sieve is used for the coal gangue screening on the sifter, make its upset and roll, and make qualified coal gangue pass through the sieve mesh and discharge, make unqualified bold coal gangue discharge through the coal outlet.

Further, the drum screen is connected with the motor through a coupler and a speed reducer.

Furthermore, the central axis of the drum screen forms an included angle of 3-10 degrees with the horizontal line.

Furthermore, a baffle plate is arranged on the periphery of the drum screen and used for blocking the coal gangue discharged from the screen holes in the top of the drum screen.

Furthermore, the coal outlet is arranged around the rotary screen, the number of the coal outlet is 3, and the size of the coal outlet is 300 x 100 mm.

Further, the mesh size of the trommel sieve is 50 x 50 mm.

The utility model has the advantages that: the utility model discloses can directly carry out the coal washer with raw coal and go into and wash, need not artifically pick bold coal gangue, reduce the cost of labor, improve work effect.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: 1. a drum screen; 2. a frame; 3. a strut; 4. a coal chute; 5. a coal inlet; 6. a coal outlet; 7. and (4) screening holes.

[ detailed description ] embodiments

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses a raw coal directly inserts screening plant who washes, as shown in figure 1, include:

the framework 2 is horizontally arranged, is used for supporting the drum screen 1 and is used for supporting the drum screen 1, and the support rods 3 are vertically arranged and are used for supporting the framework 2; the framework 2 can fix and support the drum screen 1, and the stress of the drum screen 1 is increased after a large amount of coal gangue is subjected to the drum screen 1, so that the stress of the drum screen 1 can be dispersed by utilizing the framework 2.

A drum screen 1 which is arranged obliquely; inside the frame 2; the rotary screen 1 is connected with the motor through the coupler and the speed reducer, the included angle between the central axis of the rotary screen 1 and the horizontal line is 3-10 degrees, the inclined arrangement enables coal gangue on the screen surface to easily overturn and roll, the screening speed is improved, large coal gangue can be helped to rapidly rotate, the rotating speed is improved, and the screen holes 7 of the rotary screen 1 are 50 mm.

The periphery of the drum screen 1 is also provided with a baffle plate, and the baffle plate is used for blocking the coal gangue discharged from the screen hole 7 at the top of the drum screen 1, placing the coal gangue discharged from the screen hole 7 to scatter everywhere, and not easy to be collected.

The drum sieve 1 is located the side of chute 4, its higher one end is into coal mouth 5, it is used for the raw coal entering drum sieve 1 in chute 4 to go into coal mouth 5, coal outlet 6 has been seted up to the lower one end of drum sieve 1, coal outlet 6 is used for the discharge of bold coal gangue, coal outlet 6 encircles drum sieve 1 and sets up, its quantity is 3, the size is 300 x 100mm, drum sieve 1 is used for the coal gangue screening on the sifter, make its upset and roll, and make qualified coal gangue discharge through sieve mesh 7, make unqualified bold coal gangue discharge through coal outlet 6, use the forklift shovel to transport.

The rotary screen 1 is connected with a motor through a coupler and a speed reducer, and the motor drives the rotary screen 1 to rotate around the axis of the rotary screen. After the materials enter the drum screen 1, the materials on the screen surface are overturned and rolled due to the inclination and rotation of the drum screen 1, so that the qualified materials, namely the undersize products, are discharged through the screen holes 7 at the bottom of the rear end of the drum, and the unqualified materials, namely the oversize products, are discharged through the coal outlet 6 of the drum screen 1.

After the device is put into use in the coal mine coal preparation plant of the lower valley, 6 ten thousand yuan can be saved, and 17.28 ten thousand yuan of electricity charge can be saved every year. Meanwhile, the purchase of one jaw crusher is reduced, and the cost is saved by about 17 ten thousand yuan.

Claims (6)

1. The utility model provides a raw coal directly goes into screening plant who washes which characterized in that includes:

a frame (2) which is arranged horizontally,

a plurality of struts (3) arranged vertically for supporting the frame (2);

the drum screen (1) is obliquely arranged and is positioned inside the frame (2);

wherein, frame (2) are used for supporting trommel screen (1), trommel screen (1) is located the side of swift current coal chute (4), and its higher one end is for going into coal mouthful (5), it is used for raw coal entering trommel screen (1) in swift current coal chute (4) to go into coal mouthful (5), coal outlet (6) have been seted up to the lower one end of trommel screen (1), coal outlet (6) are used for bold gangue to discharge, trommel screen (1) is used for screening the gangue on the sifting surface, makes its upset and roll to make qualified gangue discharge through sieve mesh (7), make unqualified bold gangue discharge through coal outlet (6).

2. A raw coal direct-washing screening device according to claim 1, wherein the rotary screen (1) is connected with a motor through a coupling and a speed reducer.

3. A raw coal direct washing screening device according to claim 2, characterized in that the central axis of the trommel (1) is at an angle of 3-10 degrees to the horizontal.

4. A raw coal direct-washing screening device according to claim 3, characterized in that a baffle is arranged on the periphery of the drum screen (1) and used for blocking gangue discharged from screen holes (7) on the top of the drum screen (1).

5. A screen assembly as defined in any one of claims 1 to 4 in which the coal outlets (6) are formed around the trommel screen (1) in 3 sizes 300 x 100 mm.

6. A raw coal direct-washing screening device according to any one of claims 1 to 4, characterized in that the screen openings (7) of the trommel (1) are 50 x 50 mm.

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