Efficient coal dressing and gangue discharging device

Abstract

The utility model relates to the technical field of coal dressing equipment, and discloses an efficient coal dressing and gangue discharging device which comprises a shell, a feeding hopper is arranged at the top of the shell, a sorting mechanism is arranged in the shell, and a coal discharging hopper and a gangue discharging hopper are arranged on the two sides of the bottom of the shell respectively. A high-speed air valve nozzle is installed on the upper portion of the side face of the fixing base, the lower portion of the outer side of the fixing base is sleeved with a material collecting groove, a partition plate is arranged in the material collecting groove, and a plurality of through grooves are formed in the lower portions of the inner side and the outer side of the material collecting groove. The inner side and the outer side of the material collecting groove are sleeved with an inner limiting baffle and an outer limiting baffle respectively, a coal outlet is formed in the inner limiting baffle, and a waste rock outlet is formed in the outer limiting baffle. The device is reasonable in design, compact in structure and small in occupied space, the raw coal processing efficiency is improved, meanwhile, the separation precision is improved, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal preparation equipment technical field, concretely is a kind of high -efficient coal preparation gangue discharging device. BACKGROUND

[0002] Gangue is the byproduct of coal mining, accounting for 10% to 15% of the mining volume. Coal gangue separation is a necessary process in coal production, and removing gangue is also the basis for producing clean energy. Reducing gangue particle emissions can reduce pm2.5 emissions per unit. Sorting gangue can reduce washing costs, improve product coal grade, and improve economic efficiency of coal enterprises.

[0003] After searching, the utility model patent with publication number CN213591126U discloses a high-efficiency coal preparation and gangue discharging device. The coal preparation and gangue discharging device includes a horizontal conveyor arranged horizontally, a roller conveyor communicating with the horizontal conveyor, an inclined slide plate smoothly communicating with the roller conveyor and arranged obliquely, a discharge unit located at the lower end of the inclined slide plate, and a support mechanism serving as a support. It has the advantages of replacing manual gangue selection, clever structure design, high separation accuracy, and high gangue discharging efficiency.

[0004] However, in actual application, the device occupies a large space, and its approximate density of lump raw coal is obtained according to pressure value, sliding speed, and approximate volume. Since the sliding speeds of coal lumps and gangues of different shapes and sizes in the induction slide vary, and the laser radar does not accurately obtain the volume of raw coal, the separation accuracy needs to be improved. Secondly, the number of induction slides of the device is small, resulting in low processing efficiency of raw coal, which is difficult to meet production needs. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is that the existing coal preparation and gangue discharging device occupies a large space, the separation accuracy needs to be improved, and the efficiency of coal preparation and gangue discharging is low, which is difficult to meet production needs.

[0006] To solve the above problems, the technical scheme of the utility model is as follows: a high-efficiency coal preparation and gangue discharging device includes a shell, a feed hopper is arranged at the top of the shell, a separation mechanism is arranged inside, and a coal discharge hopper and a gangue discharge hopper are arranged at the bottom of the shell.

[0007] The sorting mechanism comprises a fixed seat, a distributing disc is mounted on the top of the fixed seat, a plurality of partition blocks are uniformly fixed on the top edge of the distributing disc, a discharging channel is formed between every two partition blocks, a recognition assembly is arranged below the bottom of the distributing disc and below each discharging channel, a plurality of high-speed air valve nozzles are uniformly mounted on the upper part of the side surface of the fixed seat, a collecting groove is arranged on the lower part of the outer side of the fixed seat, a partition plate is arranged in the collecting groove, a plurality of through grooves are formed in the lower part of the inner and outer sides of the collecting groove, an inner limiting baffle and an outer limiting baffle are arranged on the inner and outer sides of the collecting groove, respectively, a coal discharging opening is formed in the upper part of the inner limiting baffle and above the coal discharge hopper, a gangue discharging opening is formed in the upper part of the outer limiting baffle and above the gangue discharge hopper, and a driving assembly for driving the rotation of the collecting groove is arranged below the collecting groove.

[0008] Further, the upper part of the distributing disc is a conical structure.

[0009] Further, the recognition assembly comprises an X-ray source mounted on the bottom of the distributing disc and a ray receiver corresponding to the X-ray source and mounted on the inner wall of the shell.

[0010] Further, the partition plate divides the inside of the collecting groove into a coal groove and a gangue groove, a guide plate one is arranged in the coal groove, and a guide plate two is arranged in the gangue groove, the guide plate one is mounted on the fixed seat through a connecting rod, and the guide plate two is mounted on the inner wall of the shell through a connecting rod.

[0011] Further, the inner limiting baffle and the outer limiting baffle are respectively mounted on the side wall of the fixed seat and the inner wall of the shell through a plurality of positioning rods.

[0012] Further, the driving assembly comprises a plurality of casters mounted on the inner and outer sides of the bottom of the collecting groove and a supporting ring arranged below the collecting groove, an outer gear ring is fixedly mounted on the bottom of the collecting groove, an installation groove is formed in the top of the supporting ring, a motor is mounted in the installation groove, and a gear meshing with the outer gear ring is mounted on the output shaft of the motor.

[0013] Compared with the prior art, the distributing disc of the utility model disperses raw coal, so that the raw coal is uniformly thrown out through a plurality of discharging channels, and the processing efficiency of the raw coal is improved; the recognition assembly distinguishes coal blocks and gangues, the high-speed air valve nozzles blow and spray the gangues, so that the coal blocks and the gangues fall into the coal groove and the gangue groove, respectively, the separation of the coal blocks and the gangues is realized, the accuracy of distinguishing the coal blocks and the gangues is effectively improved through X-ray imaging, and the accuracy is not affected by the size, shape and external environment; the device is arranged from top to bottom, the occupied area of the device is reduced, and space is saved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the perspective view of the utility model.

[0015] Figure 2The sectional view of the utility model Figure 1 .

[0016] Figure 3 The sectional view of the utility model Figure 2 .

[0017] Figure 4 The utility model Figure 2 A structure enlarged view of the utility model.

[0018] As shown in the figure: 1, the shell; 2, feed hopper; 3, coal discharge hopper; 4, gangue discharge hopper; 5, fixed seat; 6, distribution tray; 7, partition block; 8, X-ray source; 9, ray receiver; 10, high-speed air valve nozzle; 11, material collecting tank; 12, partition; 13, inner limiting baffle; 14, outer limiting baffle; 15, guide plate one; 16, guide plate two; 17, caster; 18, support ring; 19, outer gear ring; 20, motor; 21, gear. Specific implementation

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0020] As Figure 1 shown, an efficient coal preparation and gangue discharge device, including the shell 1, the shell 1 top is equipped with feed hopper 2, is equipped with sorting mechanism inside, bottom both sides are equipped with coal discharge hopper 3 and gangue discharge hopper 4 respectively.

[0021] As Figure 2 and Figure 3 shown, the sorting mechanism includes fixed seat 5, the fixed seat 5 top is installed with distribution tray 6, the upper portion of distribution tray 6 is tapered structure, and its top surface edge is uniformly connected with several partition blocks 7, forms the discharging channel between every two partition blocks 7, and is equipped with identification assembly below every discharging channel in the bottom of distribution tray 6, the identification assembly includes the X-ray source 8 installed in the bottom of distribution tray 6, and the ray receiver 9 corresponding with X-ray source 8 installed on the inner wall of shell 1, the fixed seat 5 side upper portion is uniformly installed with several high-speed air valve nozzles 10, the fixed seat 5 outside lower portion is equipped with material collecting tank 11, the material collecting tank 11 inside is equipped with partition 12, and the partition 12 divides the material collecting tank 11 into coal tank and gangue tank.

[0022] The device is connected to an external control system, the high-speed air valve nozzle 10 is connected to a high-pressure gas tank, raw coal is dispersed through the distribution disc 6 and then thrown out through the discharge channels, the coal and gangue are identified and distinguished through the identification assembly, the accuracy of distinguishing the coal and gangue can be effectively improved through X-ray imaging, and is not affected by size, shape and external environment.When the gangue is identified, the high-speed air valve nozzle 10 below the discharge channel is opened and blows the gangue, so that the gangue falls into the gangue chute, and the coal falls into the coal chute, realizing the separation of the coal and the gangue.

[0023] As shown in Figure 2 and Figure 4 , the inside of the aggregate chute 11 is provided with a partition plate 12, a plurality of through grooves are formed in the lower part of the inner and outer sides, the inner and outer sides of the aggregate chute 11 are respectively provided with an inner limiting baffle 13 and an outer limiting baffle 14, the inner limiting baffle 13 and the outer limiting baffle 14 are respectively installed on the side wall of the fixed seat 5 and the inner wall of the shell 1 through a plurality of positioning rods, the inner limiting baffle 13 is provided with a coal outlet above the coal discharge hopper 3, and the outer limiting baffle 14 is provided with a gangue outlet above the gangue discharge hopper 4, the inside of the coal chute is provided with a guide plate one 15, and the inside of the gangue chute is provided with a guide plate two 16, the guide plate one 15 is installed on the fixed seat 5 through a connecting rod, and the guide plate two 16 is installed on the inner wall of the shell 1 through a connecting rod, a driving assembly for driving the aggregate chute 11 to rotate is arranged below the aggregate chute 11, the driving assembly comprises a plurality of casters 17 installed on the inner and outer sides of the bottom of the aggregate chute 11 and a supporting ring 18 arranged below the aggregate chute 11, an outer gear ring 19 is fixedly installed on the bottom of the aggregate chute 11, an installation groove is formed in the top of the supporting ring 18, and a motor 20 is installed in the installation groove, and a gear 21 engaged with the outer gear ring 19 is installed on the output shaft of the motor 20.

[0024] The motor 20 drives the gear 21 to rotate, the gear 21 drives the aggregate chute 11 to rotate through the outer gear ring 19, and the rotation of the aggregate chute 11 cooperates with the guide plate one 15, so that the coal blocks move to the through grooves on the inner side of the aggregate chute 11, then fall into the coal discharge hopper 3 through the coal outlet, and are discharged through the coal discharge hopper 3; the rotation of the aggregate chute 11 cooperates with the guide plate two 16, so that the gangue moves to the through grooves on the outer side of the aggregate chute 11, then falls into the gangue discharge hopper 4 through the gangue outlet, and is discharged through the gangue discharge hopper 4.

[0025] In specific use, the distribution disc 6 disperses the raw coal, so that the raw coal is uniformly thrown out through a plurality of discharge channels, the identification assembly distinguishes the coal blocks and the gangue, and the high-speed air valve nozzle 10 blows the gangue, so that the coal blocks and the gangue respectively fall into the coal chute and the gangue chute, and the separation of the coal blocks and the gangue is realized. The device is arranged from top to bottom, the occupied area of the device is reduced, and space is saved.

[0026] The parts not disclosed in the utility model are prior art, and the specific structure and working principle will not be repeated.

[0027] It is to be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0028] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.

[0029] The above description of the present application and its embodiments is not restrictive, and the present application is not limited to the embodiments shown in the drawings. In general, if a person skilled in the art is inspired by the present application, they can design similar structural forms and embodiments without departing from the spirit of the present application, and these should all fall within the scope of the present application.

Claims

1. A high-efficiency coal preparation and gangue removal device, comprising a shell (1), wherein a feed hopper (2) is provided at the top of the shell (1), a sorting mechanism is provided inside, and a coal discharge hopper (3) and a gangue discharge hopper (4) are respectively provided on both sides of the bottom, characterized in that: The sorting mechanism includes a fixed base (5), a material distribution plate (6) is installed on the top of the fixed base (5), and several partition blocks (7) are evenly fixed to the top edge of the material distribution plate (6). A feeding channel is formed between every two partition blocks (7). An identification component is provided at the bottom of the material distribution plate (6) below each feeding channel. Several high-speed air valve nozzles (10) are evenly installed on the upper side of the fixed base (5), and a material collection groove (11) is sleeved on the lower outer side of the fixed base (5). The material collection trough (11) is provided with a partition (12) inside, and several through slots are opened at the lower part of both the inner and outer sides. The inner and outer sides of the material collection trough (11) are respectively fitted with an inner limiting baffle (13) and an outer limiting baffle (14). The inner limiting baffle (13) has a coal outlet above the coal discharge hopper (3), and the outer limiting baffle (14) has a gangue outlet above the gangue discharge hopper (4). The material collection trough (11) is provided with a drive assembly for driving the material collection trough (11) to rotate below.

2. The high-efficiency coal preparation and gangue removal device according to claim 1, characterized in that: The upper part of the material distribution plate (6) has a conical structure.

3. The high-efficiency coal preparation and gangue removal device according to claim 1, characterized in that: The identification component includes an X-ray source (8) installed at the bottom of the dispensing tray (6) and a radiation receiver (9) corresponding to the X-ray source (8) installed on the inner wall of the housing (1).

4. The high-efficiency coal preparation and gangue removal device according to claim 1, characterized in that: The partition (12) divides the inside of the collection trough (11) into a coal trough and a gangue trough. The coal trough is provided with a guide plate one (15), and the gangue trough is provided with a guide plate two (16). The guide plate one (15) is installed on the fixed seat (5) by a connecting rod, and the guide plate two (16) is installed on the inner wall of the shell (1) by a connecting rod.

5. The high-efficiency coal preparation and gangue removal device according to claim 1, characterized in that: The inner limiting baffle (13) and the outer limiting baffle (14) are respectively installed on the side wall of the fixed seat (5) and the inner wall of the shell (1) by multiple positioning rods.

6. The high-efficiency coal preparation and gangue removal device according to claim 1, characterized in that: The drive assembly includes several casters (17) installed on the inner and outer sides of the bottom of the collection trough (11) and a support ring (18) set below the collection trough (11). An external gear ring (19) is fixedly installed at the bottom of the collection trough (11). An installation groove is opened at the top of the support ring (18). A motor (20) is installed in the installation groove. A gear (21) that meshes with the external gear ring (19) is installed on the output shaft of the motor (20).

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