CN212732330U

CN212732330U - Coal gangue crushing and screening device

Info

Publication number: CN212732330U
Application number: CN202021017799.2U
Authority: CN
Inventors: 王文礼
Original assignee: Xi'an Zechengke Industry And Trade Co ltd
Current assignee: Xi'an Zechengke Industry And Trade Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-03-19
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses a gangue crushing and screening device belongs to the gangue recovery field, and this gangue crushing and screening device includes the main part and down sets gradually unloading mechanism, broken mechanism, screening mechanism and the case that gathers materials in the main part from last, the cavity structure of feed inlet has been seted up for the top to the main part, unloading mechanism includes feed cylinder and baffle box, feed cylinder sets up in the feed inlet, the baffle box slope sets up on the inner wall of main part, and the baffle box keeps away from the height that highly is less than its one end of fixing at the main part inner wall of the one end of main part inner wall, and the baffle box is located feed cylinder below. The utility model provides an among the current breaker too fast problem of unloading, have simple structure, economical and practical's advantage.

Description

Coal gangue crushing and screening device

Technical Field

The utility model belongs to the gangue recovery field, specifically speaking relates to a gangue crushing and screening device.

Background

The coal gangue is solid waste discharged in the coal mining process and the coal washing process, and is a black and gray rock which has lower carbon content and is harder than coal and is associated with a coal bed in the coal forming process. Comprises tunneling waste rocks in the tunneling process of a roadway, waste rocks extracted from a top plate, a bottom plate and an interlayer in the mining process, and washing waste rocks extracted in the coal washing process. The existing coal gangue stock in the world is huge, the amount of coal gangue accumulated in China alone reaches more than 10 hundred million tons, and 1 hundred million tons of coal gangue are discharged every year. However, most coal gangues cannot be utilized and need to be occupied in large blocks, various harmful substances mixed in the coal gangues can flow into water or farmlands to pollute the atmosphere, and no small harm is brought to human beings.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a gangue crushing and screening device, this gangue crushing and screening device have solved the existing equipment uncontrollable unloading speed that exists among the prior art, lead to the unloading speed to appear blocking too fast easily or cause the problem of damage to crushing equipment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a coal gangue crushing and screening device, includes the main part and down sets gradually unloading mechanism, broken mechanism, screening mechanism and the case that gathers materials in the main part from last, the cavity structure of feed inlet is offered for the top to the main part, unloading mechanism includes a feeding section of thick bamboo and baffle box, a feeding section of thick bamboo sets up in the feed inlet, the baffle box slope sets up on the inner wall of main part, and the baffle box keeps away from the height that highly is less than its one end of fixing at the main part inner wall of the one end of main part inner wall, and the baffle box is located a feeding section of thick bamboo below.

Preferably, the number of the guide chutes is at least three, and all the guide chutes are arranged on the inner wall of the main body in a vertically staggered manner.

Preferably, the horizontal projection of the feeding cylinder falls on the guide chute.

Preferably, the inclination angle between the material guide groove and the inner wall of the main body is 60-70 degrees.

Preferably, the crushing mechanism comprises a crushing roller, a first motor and a rotating shaft, and the crushing rollers are arranged in the same horizontal plane and are parallel to each other two by two; the inner wall setting of main part is run through in the pivot, and crushing drum's one end is through pivot and first motor electric connection, the inner wall swing joint of the other end and main part.

Preferably, the outer surface of the crushing roller is uniformly provided with a plurality of crushing teeth.

Preferably, the crushing teeth are high wear-resistant alloy teeth.

Preferably, the screening mechanism comprises a screen and a second motor, and the screen is electrically connected with the second motor; the screen is arranged on the main body.

Preferably, the second motor is a vibration motor.

Preferably, the material collecting box comprises a material collecting box main body, a material outlet formed in the side wall of the material collecting box main body and a sealing cover matched with the material outlet; the collection box main body is arranged at the bottom of the main body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the feeding mechanism comprises a feeding barrel and a guide chute, the feeding barrel is arranged in the feeding port, the guide chute is obliquely arranged on the inner wall of the main body, the height of one end, far away from the inner wall of the main body, of the guide chute is lower than the height of one end, fixed on the inner wall of the main body, of the guide chute, and the guide chute is located below the feeding barrel. The design of this structure can slow down the unloading speed of gangue, makes the gangue fall in order, has avoided the too fast uncontrollable condition that causes equipment to appear blocking in the unloading speed among the conventional equipment. Meanwhile, the impact of the discharged coal gangue on a crushing mechanism in the next procedure is greatly reduced, so that the service life of the crushing mechanism is prolonged; in addition, the structure is simple, economical and practical.

2. The outer surface of the crushing roller is uniformly provided with a plurality of high-wear-resistance alloy teeth, so that the crushing efficiency is greatly improved while the crushing effect of the crushing roller is enhanced.

3. The second motor with screen cloth electric connection is vibrating motor, such structural design very big improvement the efficiency of sieving of screen cloth, avoided piling up on the screen cloth have a large amount of coal gangue after the breakage.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic top view of the crushing mechanism of the present invention;

fig. 3 is a schematic top view of the screen of the present invention.

The material collecting device comprises a main body, a feeding hole 10, a discharging mechanism 11, a crushing mechanism 12, a screening mechanism 13, a material collecting box 14, a feeding cylinder 111, a guide chute 112, a crushing roller 121, a first motor 122, a rotating shaft 123, a screen 131, a second motor 132, a material collecting box main body 140, a discharging hole 141, a sealing cover 142 and a handle 1310.

Detailed Description

In order to make the objects and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example (b):

as shown in fig. 1, the utility model discloses in, gangue crushing and screening device includes main part 1, unloading mechanism 11, crushing mechanism 12, screening mechanism 13 and the case 14 that gathers materials, and main part 1 is the cavity structures that the feed inlet 10 was seted up at the top, and its appearance can be for shapes such as cylinder, cube. The blanking mechanism 11 is connected with the feeding port 10, the blanking mechanism 11, the crushing mechanism 12, the screening mechanism 13 and the material collecting box 14 are sequentially arranged on the main body 1 from top to bottom, the blanking mechanism 11 comprises a feeding cylinder 111 and a guide chute 112, the feeding cylinder 111 is arranged in the feeding port 10, the guide chute 112 is obliquely arranged on the inner wall of the main body 1, the height of one end, far away from the inner wall of the main body 1, of the guide chute 112 is lower than that of one end, fixed on the inner wall of the main body 1, of the guide chute 112, and the guide chute 112 is positioned below the feeding cylinder 111. The coal gangue falling from the feeding cylinder 111 directly falls into the guide chute 112, and due to the inclined arrangement of the guide chute 112, the coal gangue can be subjected to the friction force of the guide chute 112 in the sliding process, so that the sliding speed of the coal gangue in the guide chute 112 is reduced, and the impact on the crushing mechanism 12 is greatly reduced when the coal gangue is transferred to the next crushing process. Wherein the direction of the friction force is opposite to the sliding direction of the coal gangue.

Preferably, the number of the material guide slots 112 is at least three, and all the material guide slots 112 are arranged on the inner wall of the main body 1 in a staggered manner. Therefore, the plurality of guide chutes 112 which are staggered up and down can slow down the falling speed of the coal gangue many times, and the problem that the falling speed of the coal gangue is uncontrollable can be further improved.

Preferably, the horizontal projection of the feeding cylinder 111 falls on the material guide chute 112. The structural design is to further ensure that the coal gangue in the feeding barrel 111 more accurately falls onto the guide chute 112 below, and every two adjacent guide chutes 112 can correspond to each other structurally, so that the coal gangue is not thrown out in the transmission process between the guide chutes 112.

As a preferred scheme, the inclination angle between the material guiding groove 112 and the inner wall of the main body 1 is 60-70 degrees, and the optimal angle for the utility model is 65 degrees. The angle design is more convenient for controlling the sliding speed of the coal gangue in the material guide groove 112, and sufficient preparation time is left for the next crushing process. 60-70 degrees is selected because too small inclination angle can cause difficulty in sliding coal gangue to generate accumulation, and too large inclination angle cannot play a role in buffering sliding speed.

Preferably, as shown in fig. 2, the crushing mechanism 12 includes two crushing rollers 121, two first motors 122 and two rotating shafts 123, the crushing rollers 121 are disposed in the same horizontal plane, and two crushing rollers are parallel to each other, and adjacent crushing rollers 121 generate a pressing force on the coal gangue therebetween, so as to crush the coal gangue; the rotating shaft 123 penetrates through the inner wall of the main body 1, one end of the crushing roller 121 is electrically connected with the first motor 122 through the rotating shaft 123, and the other end of the crushing roller is movably connected with the inner wall of the main body 1. The first motor 122 transmits power to the crushing roller 121 through the rotating shaft 123, and the crushing roller 121 crushes the coal gangue by using the power. The first motor 122 is a common motor, and belongs to the conventional technology.

Preferably, the outer surface of the crushing roller 121 is uniformly provided with a plurality of crushing teeth. The design can greatly improve the crushing efficiency of the coal gangue and save energy.

Preferably, the crushing teeth are high-wear-resistance alloy teeth. The crushing efficiency of the coal gangue can be further improved by adopting the high-wear-resistant alloy teeth, meanwhile, the replacement times of the crushing roller 121 can be reduced, and the service life of the crushing roller 121 is prolonged.

Preferably, as shown in fig. 1 and 3, the screening mechanism 13 includes a screen 131 and a second motor 132, and the screen 131 is electrically connected to the second motor 132; the mesh 131 is provided on the main body 1. The second motor 132 is a vibration motor, and the screen 131 is designed to vibrate, so as to prevent the screen 131 from being blocked due to the accumulation of coal gangue on the screen 131, which hinders the smooth proceeding of the next process. The screening mechanism 13 may be provided in plurality, and two screening mechanisms are arranged in parallel on different horizontal planes. The screens 131 can have different specifications and are set according to actual requirements, but the mesh number of the screen 131 positioned above is always smaller than that of the screen 131 positioned below, so that coal gangue with different particle sizes can be collected in a distinguishing manner. Handles 1310 convenient for manual operation can be symmetrically arranged on two sides of the frame of the screen 131.

Preferably, the material collecting box 14 includes a material collecting box main body 140, a material outlet 141 opened on the side wall of the material collecting box main body 140, and a sealing cover 142 adapted to the material outlet 141; the collection box body 140 is provided at the bottom of the body 1. The material collecting box main body 140 is used for collecting coal gangue powder which flows out after being screened by the screening mechanism 13, the coal gangue powder in the coal gangue powder can be cleaned out through the discharge port 141, and the sealing cover 142 is closed under the working state of the whole coal gangue crushing and screening device, so that the coal gangue powder is prevented from flying around to influence the field operation environment.

The working process of the coal gangue crushing and screening device is as follows:

as shown in fig. 1, the coal gangue raw material falls into the main body 1 through the feeding cylinder 111, firstly falls onto each material guiding chute 112 from top to bottom, and then falls onto the crushing rollers 121, and the first motor 122 drives two adjacent crushing rollers 121 to perform an extruding motion through the rotating shaft 123 to crush the coal gangue. Then, the crushed coal gangue blocks with different sizes and specifications fall on the screen 131, and the screen 131 is driven by the second motor 132 to vibrate continuously, so that the coal gangue blocks with different specifications are screened on the screen 131 with different specifications, and the coal gangue powder falls into the material collecting box 14 at the bottommost layer. After the coal gangue crushing and screening device is shut down, the screen 131 is taken out, and then the coal gangue with different specifications can be classified and recycled. The gangue powder collected in the lowest aggregate box 14 is cleaned by opening the sealing cover 142 periodically.

Claims

1. The utility model provides a coal gangue crushing and screening device, includes main part (1) and from the last unloading mechanism (11), broken mechanism (12), screening mechanism (13) and the case (14) of gathering materials that down set gradually on main part (1), the cavity structure of feed inlet (10) is seted up for the top in main part (1), its characterized in that, unloading mechanism (11) are including feed cylinder (111) and baffle box (112), feed cylinder (111) set up in feed inlet (10), baffle box (112) slope sets up on the inner wall of main part (1), and baffle box (112) keep away from the height that highly is less than its height of fixing the one end at main part (1) inner wall of main part (1) inner wall, and baffle box (112) are located feed cylinder (111) below.

2. The coal gangue crushing and screening device as claimed in claim 1, wherein the number of the guide chutes (112) is at least three, and all the guide chutes (112) are arranged on the inner wall of the main body (1) in a staggered manner.

3. The coal gangue crushing and screening device as defined in claim 1, wherein the horizontal projection of the feeding barrel (111) falls on the material guide chute (112).

4. The coal gangue crushing and screening device as claimed in claim 1, wherein the inclination angle between the material guide chute (112) and the inner wall of the main body (1) is 60-70 °.

5. The coal gangue crushing and screening device as defined in any one of the claims 1 to 4, wherein the crushing mechanism (12) comprises a crushing roller (121), a first motor (122) and a rotating shaft (123), the crushing rollers (121) are arranged in the same horizontal plane and are parallel to each other two by two; the rotating shaft (123) penetrates through the inner wall of the main body (1), one end of the crushing roller (121) is electrically connected with the first motor (122) through the rotating shaft (123), and the other end of the crushing roller is movably connected with the inner wall of the main body (1).

6. The coal gangue crushing and screening device as set forth in claim 5, characterized in that a plurality of crushing teeth are uniformly arranged on the outer surface of the crushing drum (121).

7. The coal refuse crushing and screening device as set forth in claim 6, wherein the crushing teeth are high wear-resistant alloy teeth.

8. The coal gangue crushing and screening device as set forth in claim 5, characterized in that the screening mechanism (13) comprises a screen (131) and a second motor (132), the screen (131) being electrically connected with the second motor (132); the screen (131) is provided on the main body (1).

9. The coal refuse crushing and screening plant of claim 8, characterized in that the second motor (132) is a vibration motor.

10. The coal gangue crushing and screening device as set forth in claim 8, characterized in that the collecting box (14) comprises a collecting box main body (140), a discharge port (141) opened on the side wall of the collecting box main body (140), and a sealing cover (142) adapted to the discharge port (141); the aggregate box main body (140) is arranged at the bottom of the main body (1).