CN217165281U

CN217165281U - Screening equipment for coal washing

Info

Publication number: CN217165281U
Application number: CN202221177166.7U
Authority: CN
Inventors: 张长坤
Original assignee: Shandong Wenda New Energy Co Ltd
Current assignee: Shandong Wenda New Energy Co Ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-08-12
Anticipated expiration: 2032-05-17

Abstract

The utility model discloses a screening installation is used in coal washing relates to coal washing and selects screening technical field, has solved out the inside coal clod that can remain of hopper, needs the inside remaining coal clod of manual clearance hopper, increases personnel's the problem of clearance burden. A screening device for coal washing comprises a main frame body; the main frame body surrounds the two sides and the upper part of the inner screening frame, and the bottom end of the buffer part is fixedly connected with the main frame body; an inner screening frame is arranged on the inner side of the main frame body; a lower discharge hopper is fixedly arranged at the lower part of the main frame body; the lower part of the lower discharging hopper is in contact with the tail end of the outer knocking frame, the outer knocking frame is in sliding connection with the main frame body in a penetrating mode, and the head end of the outer knocking frame is connected with the upper connecting rod in a rotating mode. The frame that strikes drives outward when screening frame vibration reciprocates in this practicality, strikes the frame outward and strikes vibrations to the bottom discharge fill, reduces the adhesion condition of the inboard coal of bottom discharge fill for the inboard coal of bottom discharge fill breaks away from.

Description

Screening equipment for coal washing

Technical Field

The utility model belongs to the technical field of coal washing selection screening, more specifically say, in particular to screening installation is used in coal washing selection.

Background

The coal washing is a process of removing gangue and other impurities in coal to improve the quality of the coal, the coal can be screened after the coal washing is finished, the coal is classified according to different sizes through a screening machine, the coals with different sizes are classified and collected to supply different customer requirements, and the processing quantity of subsequent coal crushing is reduced.

Based on the above, during the coal screening, in the shale shaker working process, the shale shaker can splash coal cinder etc. to around when using, cause the surrounding environment to be covered by the coal cinder very fast, personnel's operational environment is relatively poor, and the easy adhesion of less coal cinder in screening back is on the play hopper of bottom, lead to going out the inside coal slime piece that can remain of hopper, the ejection of compact circulation that goes out the hopper is smooth and easy inadequately, need manual clearance go out the inside remaining coal slime piece of hopper, increase personnel's clearance burden.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a screening installation is used in coal washing, the outside of screening frame including its body frame body surrounds, and the dust to the surrounding environment when screening frame vibrations in reducing is stretched, reduces environmental pollution to around, promotes personnel's operational environment, reduces splashing to the coal cinder around when screening frame uses in reducing.

The utility model relates to a coal is washed and is selected purpose and efficiency with screening installation is reached by following specific technological means:

a screening device for coal washing comprises a main frame body; an upper feeding hopper is fixedly arranged at the top of the main frame body, a middle air box is fixedly arranged in the middle of the main frame body, a fan structure is arranged in the middle of the middle air box, and an air outlet of the middle air box is positioned on the inner side of the middle of the main frame body; an inner screening frame is arranged on the inner side of the main frame body in a sliding manner, an upper vibration module is fixedly arranged at the top of the inner screening frame, an upper screening net is fixedly arranged at the upper part of the inner screening frame, a lower screening net is fixedly arranged at the lower part of the inner screening frame, outer connecting plates are fixedly arranged at two sides of the inner screening frame and are fixedly connected with the top of the buffer piece, the upper screening net and the lower screening net are both of a net structure, the mesh size of the lower screening net is smaller than that of the upper screening net, the upper screening net is positioned below an upper feeding hopper, an air outlet of a middle air box is positioned in the middle of the inner screening frame, an air outlet of the middle air box is communicated with the middle of the inner screening frame, and an air outlet of the middle air box is positioned between the upper screening net and the lower screening net, the main frame body surrounds the two sides and the upper part of the inner screening frame, the bottom end of the buffer part is fixedly connected with the main frame body, and the buffer part can be of a spiral spring structure or a buffer rubber structure; the fixed hopper that is provided with down in body frame body lower part, the lower ejection of compact fill bottom sets up conveyer equipment, and lower ejection of compact fill lower part and the contact of outer knock frame tail end, knock frame and body frame body and run through sliding connection outward, knock frame head end and last connecting rod outward and rotate to be connected, go up the connecting rod top and rotate with the external connection board and connect, lower ejection of compact fill is in the below of lower screening net, and lower ejection of compact fill is infundibulate structure, and lower ejection of compact fill is in the lower part of the body frame body inboard.

The utility model discloses at least, include following beneficial effect:

1. the utility model discloses the outside of screen frame including the body frame body surrounds, and the dust to the surrounding environment when screen frame vibrations in reducing is stretchd, reduces the environmental pollution to around, promotes personnel's operational environment, to splashing of coal cinder on every side when screen frame uses in reducing.

2. The utility model discloses go up the air outlet that the coal that the vibration module screening dropped can pass through well bellows, the evaporation rate of the coal that drops and lower screening net upper portion coal moisture is accelerated to well bellows air-out, reduces coal moisture, and it is big to avoid coal moisture, and the coal cinder is easy to be glued and is being screened the net under thinner, causes the condition of jam.

3. The utility model discloses drive the frame of strikeing outward when interior screening frame vibrates and reciprocate, strike the frame outward and strike vibrations to the bottom discharge hopper, reduce the adhesion condition of the inboard coal of bottom discharge hopper for the inboard coal of bottom discharge hopper breaks away from, need not the inside remaining coal clod of manual clearance discharge hopper.

Drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 2 is a schematic view of the structure of the lower discharging hopper of the utility model.

Fig. 3 is a schematic view of the semi-section structure of the main frame body of the utility model.

Fig. 4 is a schematic view of the split structure of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a main frame body; 101. an upper feeding hopper; 102. a middle air box; 2. an inner screening frame; 201. an upper vibration module; 202. screening by an upper screen; 203. a lower screening net; 204. an outer connecting plate; 205. a buffer member; 3. a discharging hopper is arranged; 301. an outer knocking frame; 302. and an upper connecting rod.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "two end," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," "fixed," and "screwed" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Example (b):

as shown in figures 1 to 4:

the utility model provides a screening device for coal washing, which comprises a main frame body 1; the top of the main frame body 1 is fixedly provided with an upper feeding hopper 101, the middle of the main frame body 1 is fixedly provided with a middle air box 102, the inner part of the middle air box 102 is provided with a fan structure, an air outlet of the middle air box 102 is positioned at the inner side of the middle part of the main frame body 1, the main frame body 1 surrounds the outer side of the inner screening frame 2, dust spreading to the surrounding environment when the inner screening frame 2 vibrates is reduced, dust pollution to the surrounding environment is reduced, the working environment of personnel is improved, splashing to the surrounding coal briquettes when the inner screening frame 2 is used is reduced, the air outlet of the middle air box 102 is positioned at the middle part of the inner screening frame 2, the air outlet of the middle air box 102 is communicated with the middle part of the inner screening frame 2, the air outlet of the middle air box 102 is positioned between the upper screening net 202 and the lower screening net 203, air outlet of the middle air box 102 accelerates the evaporation speed of the dropped coal and the coal moisture on the upper part of the lower screening net 203, the coal moisture is reduced, when the coal moisture is large, the coal briquettes are easily adhered to the finer lower screening net 203, the coal blocks adhered to the lower screening net 203 are dried to promote the falling of the coal blocks adhered to the lower screening net 203 under the condition of blockage; the inner side of the main frame body 1 is provided with an inner screening frame 2 in a sliding manner, the top of the inner screening frame 2 is fixedly provided with an upper vibration module 201, the upper vibration module 201 is provided with vibration excitation of a vibration motor as a vibration source, the upper vibration module 201 drives the inner screening frame 2 to vibrate, the upper part of the inner screening frame 2 is fixedly provided with an upper screening net 202, the lower part of the inner screening frame 2 is fixedly provided with a lower screening net 203, the two sides of the inner screening frame 2 are both fixedly provided with outer connecting plates 204, the outer connecting plates 204 are fixedly connected with the top of a buffer piece 205, the main frame body 1 surrounds the two sides and the upper part of the inner screening frame 2, the bottom end of the buffer piece 205 is fixedly connected with the main frame body 1, the buffer piece 205 can be of a spiral spring structure or a buffer rubber structure, the buffer piece 205 buffers the vibration transmission of the inner screening frame 2 to the main frame body 1, the upper screening net 202 and the lower screening net 203 are both of a net structure, the mesh size of the lower screening net 203 is smaller than that of the upper screening net 202, the upper screening net 202 is positioned below the upper feeding hopper 101, the upper screening net 202 and the lower screening net 203 screen the coal blocks into three types of large, medium and small, the large and medium coal blocks roll along the top of the upper screening net 202 and the lower screening net 203 to the tail part and leave, and the small coal blocks enter the lower discharging hopper 3; the lower part of the main frame body 1 is fixedly provided with a lower discharging hopper 3.

Referring to the attached drawings 2 and 4, a conveying belt device is arranged at the bottom end of a lower discharging hopper 3, the lower part of the lower discharging hopper 3 is contacted with the tail end of an outer knocking frame 301, the outer knocking frame 301 is connected with a main frame body 1 in a penetrating and sliding manner, the head end of the outer knocking frame 301 is connected with an upper connecting rod 302 in a rotating manner, the top end of the upper connecting rod 302 is connected with an outer connecting plate 204 in a rotating manner, the lower discharging hopper 3 is arranged below a lower screening net 203, the lower discharging hopper 3 is of a funnel-shaped structure, the lower discharging hopper 3 is arranged on the inner side of the lower part of the main frame body 1, the inner screening frame 2 and the outer connecting plate 204 synchronously vibrate, the outer connecting plate 204 drives the upper connecting rod 302 to move, the upper connecting rod 302 drives the outer knocking frame 301 to move up and down, the outer knocking frame 301 moves up and down, rubber blocks arranged at the tail end of the outer knocking frame 301 are contacted with the lower discharging hopper 3, the rubber blocks arranged at the tail end of the outer knocking frame 301 vibrates the lower discharging hopper 3, the adhesion condition of coal on the inner side of the lower discharging hopper 3 is reduced, 3 inboard coal vibrations of hopper break away from under the promotion for 3 inboard coal of hopper break away from speed down, it is smooth and easy to keep the ejection of compact circulation volume of hopper to keep out, need not the inside remaining coal slime piece of manual clearance hopper, reduce personnel's clearance burden, and drive through interior screening frame 2 and strike a 301 removal outward, need not extra driving motor, the cost of reduction device, it can set up a plurality of rubber pieces in interval array and strike the operation in step to strike the frame 301 tail end outward.

The specific use mode and function of the embodiment are as follows:

in the utility model, coal after coal gangue is washed and separated enters from the upper feeding hopper 101, the feeding area of the upper feeding hopper 101 is enlarged, meanwhile, the upper feeding hopper 101 is matched with a baffle plate at the top of the main frame body 1 to cover the upper part of the inner screening frame 2, the exposure of the inner screening frame 2 is reduced, the dust raised to the periphery in the screening process is reduced, the coal flows out from the bottom of the upper feeding hopper 101 and enters the head end of the inner screening frame 2, the upper vibration module 201 is provided with vibration motor excitation as a vibration source, the upper vibration module 201 drives the inner screening frame 2 to vibrate, the main frame body 1 surrounds the outer side of the inner screening frame 2, the dust spread to the surrounding environment when the inner screening frame 2 vibrates is reduced, the dust pollution to the surrounding environment is reduced, the working environment of personnel is improved, the splashing to the surrounding coal blocks when the inner screening frame 2 is used is reduced, the upper screening net 202 and the lower screening net screen the coal blocks into three types of large, medium and small, big and medium coal blocks roll along the top of the upper screening net 202 and the lower screening net 203 to the tail part and leave, small coal blocks enter the lower discharging hopper 3, the coal dropped by the upper vibration module 201 is screened through the air outlet of the middle air box 102, the air outlet of the middle air box 102 accelerates the evaporation speed of the dropped coal and the coal moisture on the upper part of the lower screening net 203, the coal moisture is reduced, the situation that the coal blocks are easily adhered to the thinner lower screening net 203 to cause blockage when the coal moisture is large is avoided, the coal blocks adhered to the lower screening net 203 are dried, the falling of the coal blocks adhered to the lower screening net 203 is promoted, the small coal blocks penetrate through the lower screening net 203 to enter the lower discharging hopper 3, the small coal blocks fall onto a conveying belt arranged at the bottom of the lower discharging hopper 3, the inner screening frame 2 drives the outer knocking frame 301 to move up and down while vibrating, the inner screening frame 2 and the outer connecting plate 204 synchronously vibrate, the outer connecting plate 204 drives the upper connecting rod 302 to move, go up connecting rod 302 and drive and strike frame 301 outward and reciprocate, strike the rubber block and the 3 contacts of lower ejection of compact fill that the frame 301 tail end set up outward, strike the rubber block that the frame 301 tail end set up outward and strike 3 intermittent type of lower ejection of compact fill, reduce the adhesion condition of 3 inboard coals of lower ejection of compact fill, 3 promotion of lower ejection of compact fill of vibrations and 3 inboard coal vibrations of lower ejection of compact fill break away from with higher speed, accelerate the 3 inboard coal of lower ejection of compact fill to break away from speed, and strike frame 301 removal outward through interior screening frame 2 drive, need not extra driving motor, the cost of reducing means.

The details of the present invention are not described in detail, but are well known to those skilled in the art.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a screening installation is used in coal washing selection which characterized in that: the screening equipment for coal washing comprises a main frame body; an inner screening frame is arranged on the inner side of the main frame body; a lower discharge hopper is fixedly arranged at the lower part of the main frame body; the lower part of the lower discharge hopper is in contact with the tail end of an outer knocking frame (301), the outer knocking frame (301) is in through sliding connection with the main frame body, and the head end of the outer knocking frame (301) is rotatably connected with an upper connecting rod (302).

2. The coal washing and screening equipment as claimed in claim 1, characterized in that the top of the main frame is fixedly provided with an upper feeding hopper (101), the middle of the main frame is fixedly provided with a middle wind box (102), and the air outlet of the middle wind box (102) is positioned at the inner side of the middle of the main frame.

3. The coal washing screening device as recited in claim 2, characterized in that an upper vibration module (201) is fixedly arranged on the top of the inner screening frame, an upper screening net (202) is fixedly arranged on the upper portion of the inner screening frame, a lower screening net (203) is fixedly arranged on the lower portion of the inner screening frame, outer connecting plates (204) are fixedly arranged on both sides of the inner screening frame, and the outer connecting plates (204) are fixedly connected with the top of the buffer piece (205).

4. A screening apparatus for coal washing according to claim 3, wherein the upper screen (202) and the lower screen (203) are both of a mesh structure, the mesh size of the lower screen (203) is smaller than the size of the upper screen (202), and the upper screen (202) is located below the upper hopper (101).

5. The coal washing and screening device as recited in claim 4, characterized in that the air outlet of the middle air box (102) is arranged in the middle of the inner screening frame, the air outlet of the middle air box (102) is communicated with the middle of the inner screening frame, and the air outlet of the middle air box (102) is arranged between the upper screening net (202) and the lower screening net (203).

6. A screening apparatus for coal washing according to claim 5, wherein the top end of the upper connecting rod (302) is rotatably connected to the outer connecting plate (204), and the lower discharge hopper is located below the lower screening mesh (203).

7. The coal washing and screening apparatus as claimed in claim 3, wherein said main frame body surrounds both sides and upper portion of the inner screening frame, and the bottom end of the buffer member (205) is fixedly connected to the main frame body.