CN210875490U - Coal mine crushing device - Google Patents

Abstract

The utility model discloses a coal mine smashing device, which comprises a frame, elementary rubbing crusher constructs, second grade rubbing crusher constructs and collects the sieve, elementary rubbing crusher constructs including the conveying pipeline, first striking crushing dish and the second striking crushing dish that sets up relatively with first striking crushing dish, the inside of conveying pipeline is provided with carries the auger, second grade rubbing crusher constructs including the rubbing crusher, set up crushing roller in the rubbing crusher and set up the bar abrasive brick at the rubbing crusher inside wall, the bottom of rubbing crusher is provided with the discharge gate, the below that the collection sieve is located the discharge gate. The utility model discloses a carry the auger and can make the colliery obtain preliminary striking and polish, the second striking crushing dish takes place the striking under the drive of flexible pneumatic cylinder and between the first striking crushing dish and carries out preliminary striking to the colliery and smash, later recycle crushing roller and further refine the coal cinder and smash. This colliery reducing mechanism is simple structure not only, and multistage crushing process makes the crushing effectual in colliery moreover, smashes efficiently, and the practicality is strong.

Description

A coal mine crushing device

technical field

The utility model relates to the technical field of coal mines, in particular to a coal mine crushing device.

Background technique

At present, the coal mined in the coal mining process is often very large, which is very inconvenient to transport and use, so the coal mine needs to be crushed. Existing coal mine crushing devices often have a single crushing method, which is prone to incomplete crushing of coal mines, poor crushing effect, and even needs to be reworked and crushed again, resulting in low coal crushing efficiency.

Utility model content

The purpose of the utility model is to provide a coal mine crushing device with simple structure, good crushing effect and high crushing efficiency.

For achieving the above object, the utility model provides the following scheme:

The utility model provides a coal mine crushing device, which comprises a frame, a primary crushing mechanism, a secondary crushing mechanism and a collecting screen. The primary crushing mechanism comprises a feeding pipe and a first impact crushing disc arranged at the discharge port of the feeding pipe. and a second impact pulverizing disk opposite to the first impact pulverizing disk, the feeding pipe is fixed on one side of the frame, a circular hole is opened in the center of the first impact pulverizing disk, and the feeding pipe is A first feeding hopper is arranged at the end of the feeding pipe, a conveying auger is arranged inside the feeding pipe, the front end of the conveying auger penetrates the circular hole, and the second impact pulverizing disc is installed in the place through a telescopic hydraulic cylinder. The other side of the frame; the secondary pulverizing mechanism includes a pulverizing cylinder, a pulverizing roller arranged in the pulverizing cylinder, and a bar-shaped grinding block arranged on the inner side wall of the pulverizing cylinder, and the pulverizing cylinder is fixed on the On the frame, the top of the pulverizing cylinder is provided with a second feeding hopper, and the second feeding hopper is located below the gap between the first impact pulverizing disk and the second impact pulverizing disk; the The bottom end face of the pulverizing cylinder is arranged obliquely, the lower end of the bottom end face is provided with a discharge port, and the collecting screen is located below the discharge port.

Optionally, the rack includes a first vertical support plate and a second vertical support plate, and a first horizontal support is sequentially connected up and down between the first vertical support plate and the second vertical support plate. plate and a second horizontal support plate; the telescopic hydraulic cylinder is fixed on the top of the first vertical support plate, the feeding pipe is fixed on the top of the second vertical support plate, and the crushing cylinder penetrates through the The first horizontal support plate is fixed on the first horizontal support plate, and the collecting screen penetrates through the second horizontal support plate and is fixed on the second horizontal support plate.

Optionally, the end of the conveying auger is connected with a conveying motor, the bottom end of the pulverizing roller is connected to the pulverizing motor through a rotating shaft, the rotating shaft penetrates the bottom end surface, and the pulverizing motor is fixed at the second level. The upper surface of the support plate.

Optionally, a plurality of quadrangular pyramid protrusions are respectively provided on the impact surfaces of the first impact pulverizing disk and the second impact pulverizing disk.

Optionally, a plurality of bar-shaped protrusions are provided on the outer circumference of the pulverizing roller, and the length direction of each of the bar-shaped protrusions extends along the axis direction of the pulverizing roller.

Optionally, the discharge port is provided with a discharge door, and the discharge door is hinged on the side wall of the pulverizing cylinder.

Optionally, the collection screen includes a screen body support frame and a screen plate installed in the middle of the screen body support frame, and a vibrator is provided at the bottom of the screen plate.

Optionally, the bottom of the sieve body support frame is provided with a conical outlet, and a conveyor belt is arranged below the conical outlet.

Optionally, it also includes a controller, and the pulverizing roller, the conveying auger and the telescopic hydraulic cylinder are all signal-connected to the controller.

The utility model has achieved the following technical effects with respect to the prior art:

The coal mine crushing device of the utility model transports the coal mine through the conveying auger. During the conveying process, the coal mine can be preliminarily impacted and ground, the first impact crushing disc is fixed, and the second impact crushing disc is driven by the telescopic hydraulic cylinder and the first impact crushing There is impact between the discs to initially impact and crush the coal ore discharged through the circular hole of the first impact crushing disc. The blocks are refined and pulverized to obtain pulverized coal blocks that meet the requirements and have a uniform volume, and are finally collected by a collecting screen. The coal mine crushing device not only has a simple and reasonable structure, but also has good crushing effect, high crushing efficiency and strong practicability through the multi-stage crushing process.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only of the present invention. For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural representation of the utility model coal mine crushing device;

Fig. 2 is the structural representation of the first impact pulverizing disc of the present utility model;

Fig. 3 is the structural representation of the second impact pulverizing disc of the present invention;

Wherein, the reference signs are: 1-first vertical support plate; 2-second vertical support plate; 3-first horizontal support plate; 4-second horizontal support plate; 5-feeding pipe; 6-first Impact crushing disc; 7-second impact crushing disc; 8-round hole; 9-first feeding hopper; 10-conveying auger; 11-telescopic hydraulic cylinder; 12-crushing cylinder; 13-crushing roller; 14-bar 15-second feed hopper; 16-bottom end face; 17-discharge port; 18-collecting screen; 19-conveying motor; 20-pulverizing motor; 21-rotating shaft; 22-square pyramid protrusion; 23 -Strip protrusion; 24-Screen body support frame; 25-Screen plate; 26-Vibrator; 27-Conical outlet; 28-Conveyor belt.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The purpose of the utility model is to provide a coal mine crushing device with simple structure, good crushing effect and high crushing efficiency.

Based on this, the utility model provides a coal mine crushing device, comprising a frame, a primary crushing mechanism, a secondary crushing mechanism and a collection screen. The primary crushing mechanism includes a feeding pipe, a first impact crushing disc arranged at the discharge port of the feeding pipe, and The second impact pulverizing disk is arranged opposite to the first impact pulverizing disk, the feeding pipe is fixed on one side of the frame, the center of the first impact pulverizing disk is provided with a circular hole, and the end of the feeding pipe is provided with a first feeding hopper. The inside of the feeding pipeline is provided with a conveying auger, the front end of the conveying auger penetrates a circular hole, and the second impact pulverizing disc is installed on the other side of the frame through a telescopic hydraulic cylinder; the secondary pulverizing mechanism includes a pulverizing cylinder, which is arranged in the pulverizing cylinder The crushing roller and the bar-shaped grinding block arranged on the inner side wall of the crushing cylinder, the crushing cylinder is fixed on the frame, the top of the crushing cylinder is provided with a second feeding hopper, and the second feeding hopper is located at the first impact crushing disc and the second Impact below the gap between the pulverizing discs; the bottom end face of the pulverizing cylinder is inclined, the lower end of the bottom end face is provided with a discharge port, and the collecting screen is located below the discharge port.

The coal mine crushing device of the utility model transports the coal mine through the conveying auger. During the conveying process, the coal mine can be preliminarily impacted and ground, the first impact crushing disc is fixed, and the second impact crushing disc is driven by the telescopic hydraulic cylinder and the first impact crushing There is impact between the discs to initially impact and crush the coal ore discharged through the circular hole of the first impact crushing disc. The blocks are refined and pulverized to obtain pulverized coal blocks that meet the requirements and have a uniform volume, and are finally collected by a collecting screen. The coal mine crushing device not only has a simple and reasonable structure, but also has good crushing effect, high crushing efficiency and strong practicability through the multi-stage crushing process.

In order to make the above objects, features and advantages of the present utility model more clearly understood, the present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Example 1:

As shown in FIG. 1 , this embodiment provides a coal mine pulverizing device, including a frame, a primary pulverizing mechanism, a secondary pulverizing mechanism and a collection screen 18 , the primary pulverizing mechanism includes a feeding pipe 5 , and a The first impact crushing disc 6 and the second impact crushing disc 7 arranged opposite the first impact crushing disc 6, the feeding pipe 5 is fixed on one side of the frame, and the center of the first impact crushing disc 6 is provided with a circular hole 8 for feeding materials. The end of the pipeline 5 is provided with a first feeding hopper 9, and the inside of the feeding pipeline 5 is provided with a conveying auger 10, and the front end of the conveying auger 10 penetrates the circular hole 8, so as to directly convey the coal mine to the first impact crushing disc 6 and In the gap between the second impact crushing discs 7, the second impact crushing disc 7 is installed on the other side of the frame through the telescopic hydraulic cylinder 11; 13 and the bar-shaped grinding block 14 arranged on the inner side wall of the crushing cylinder 12, the crushing cylinder 12 is fixed on the frame, the top of the crushing cylinder 12 is provided with a second feeding hopper 15, and the second feeding hopper 15 is located in the first impact crushing Right below the gap between the disc 6 and the second impact crushing disc 7, it is used to collect the coal lumps after the preliminary impact crushing; There is a discharge port 17, and a collecting screen 18 is located below the discharge port 17, and is used to collect coal lumps with uniform volume that meet the requirements and are discharged through the discharge port 17.

Further, as shown in FIG. 1 , in this embodiment, the rack includes a first vertical support plate 1 and a second vertical support plate 2 , and the first vertical support plate 1 and the second vertical support plate 2 are arranged in parallel and A first horizontal support plate 3 and a second horizontal support plate 4 are connected up and down between the two; the telescopic hydraulic cylinder 11 is fixed on the top of the first vertical support plate 1, and the end of the telescopic rod of the telescopic hydraulic cylinder 11 is used for The second impact pulverizing plate 7 is fixed, the feeding pipe 5 is fixed on the top of the second vertical supporting plate 2, the pulverizing cylinder 12 penetrates the first horizontal supporting plate 3 and is fixed on the first horizontal supporting plate 3, and the collecting screen 18 penetrates the second horizontal supporting plate 3. The horizontal support plate 4 is fixed on the second horizontal support plate 4 .

Further, as shown in FIG. 1 , in this embodiment, a conveying motor 19 is connected to the end of the conveying auger 10 , and the bottom end of the pulverizing roller 13 is connected to the pulverizing motor 20 through the rotating shaft 21 , and the rotating shaft 21 penetrates the bottom end face 16 , and the pulverizing motor 20 It is fixed on the upper surface of the second horizontal support plate 4 .

Further, as shown in FIGS. 2 to 3 , in this embodiment, several quadrangular pyramid protrusions 22 are respectively provided on the impact surfaces of the first impact pulverizing disk 6 and the second impact pulverizing disk 7 for impacting and pulverizing the coal mine.

Further, as shown in FIG. 1 , in this embodiment, a plurality of bar-shaped protrusions 23 are provided on the outer circumference of the pulverizing roller 13 , and the length direction of each bar-shaped protrusion 23 extends along the axis direction of the pulverizing roller 13 . In this embodiment, five strip-shaped protrusions 23 are preferably arranged at an even interval. Correspondingly, five strip-shaped grinding blocks 14 are also preferably arranged at an interval.

Further, as shown in FIG. 1 , in this embodiment, the discharge port 17 is provided with a discharge door, which is hinged on the side wall of the pulverizing cylinder 12, and the discharge door can be locked when the coal block does not reach the pulverization standard, When the coal blocks reach the crushing standard, the discharging door is opened to discharge the coal blocks into the collecting screen 18 .

Further, as shown in FIG. 1 , in this embodiment, the collecting screen 18 includes a screen body support frame 24 and a sieve plate 25 installed in the middle of the screen body support frame 24 , and the bottom of the screen plate 25 is provided with a vibrator 26 . At the same time, the bottom of the sieve body support frame 24 is provided with a conical outlet 27 , and a conveyor belt 28 is arranged below the conical outlet 27 . There are several standard mesh holes on the sieve plate 25, and the coal blocks with qualified volume and particle size fall through the standard mesh holes and fall on the conveyor belt 28 through the conical outlet 27, and the qualified coal blocks are transported to the bottom by the conveyor belt 28. A process or coal lump loading station; accordingly, the individual coal lumps left on the sieve plate 25 need to be pulverized again. Starting the vibrator 26 to vibrate the screen plate 25 can improve the screening efficiency and screening accuracy of the screen plate 25 .

Further, as shown in FIG. 1 , this embodiment also includes a controller. The pulverizing motor 20 connected to the pulverizing roller 13 , the conveying motor 19 connected to the conveying auger 10 , the telescopic hydraulic cylinder 11 and the vibrator 26 are all connected with the controller signal. It is convenient to realize the integrated automatic control of the whole coal mine crushing device. The controller is an existing controller structure for mounting on the side of the rack.

The following describes the specific use of this embodiment.

When in use, the mined coal mine is put into the feeding pipeline 5 through the first feeding hopper 9, and the coal mine is transported to the circular hole 8 by the conveying auger 10, and the coal mine can be initially impacted and polished during the transportation process; after the second impact The crushing disc 7 collides with the first impact crushing disc 6 under the drive of the telescopic hydraulic cylinder 11, so that the coal ore discharged through the circular hole 8 of the first impact crushing disc 6 is preliminarily crushed; Falling into the second feeding hopper 15, the pulverizing roller 13 keeps rotating, the coal lumps fall into the gap between the pulverizing roller 13 and the side wall of the pulverizing cylinder 12, and the preliminarily pulverized coal lumps will be ground with the pulverizing roller 13 and the bar. Under the action of friction and impact between the blocks 14, it is further refined and pulverized, and finally pulverized coal blocks that meet the requirements and uniform volume are obtained, and finally fall into the collecting screen 18 through the discharge port 17 for screening and collection. The block is transported to the next process or the coal block loading station. The coal mine crushing device not only has a simple and reasonable structure, but also has good crushing effect, high crushing efficiency and strong practicability through the multi-stage crushing process.

It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. The utility model. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes which come within the meaning and range of equivalents of the claims are intended to be embraced within the present invention, and any reference signs in the claims shall not be construed as limiting the involved claim.

The principles and implementations of the present utility model are described with specific examples in the present utility model, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present utility model; meanwhile, for those skilled in the art , according to the idea of the present utility model, there will be changes in the specific implementation and application scope. In conclusion, the content of this specification should not be construed as a limitation on the present invention.

Claims (9)

1. The utility model provides a colliery reducing mechanism which characterized in that: the primary crushing mechanism comprises a feeding pipeline, a first impact crushing disc arranged at a discharge port of the feeding pipeline and a second impact crushing disc arranged opposite to the first impact crushing disc, the feeding pipeline is fixed on one side of the frame, a round hole is formed in the center of the first impact crushing disc, a first feeding hopper is arranged at the end of the feeding pipeline, a conveying auger is arranged inside the feeding pipeline, the front end of the conveying auger penetrates through the round hole, and the second impact crushing disc is installed on the other side of the frame through a telescopic hydraulic cylinder; the secondary crushing mechanism comprises a crushing barrel, a crushing roller arranged in the crushing barrel and a strip-shaped grinding block arranged on the inner side wall of the crushing barrel, the crushing barrel is fixed on the rack, a second feeding hopper is arranged at the top end of the crushing barrel, and the second feeding hopper is positioned below a gap between the first impact crushing disc and the second impact crushing disc; the bottom end face of the crushing barrel is obliquely arranged, a discharge hole is formed in the lower end of the bottom end face, and the collecting sieve is located below the discharge hole.

2. A coal mine comminution apparatus as claimed in claim 1 in which: the rack comprises a first vertical supporting plate and a second vertical supporting plate, and a first horizontal supporting plate and a second horizontal supporting plate are sequentially connected between the first vertical supporting plate and the second vertical supporting plate from top to bottom; the telescopic hydraulic cylinder is fixed at the top end of the first vertical supporting plate, the feeding pipeline is fixed at the top end of the second vertical supporting plate, the crushing barrel penetrates through the first horizontal supporting plate and is fixed on the first horizontal supporting plate, and the collecting sieve penetrates through the second horizontal supporting plate and is fixed on the second horizontal supporting plate.

3. A coal mine comminution apparatus as claimed in claim 2 in which: the end part of the conveying auger is connected with a conveying motor, the bottom end of the crushing roller is connected with a crushing motor through a rotating shaft, the rotating shaft penetrates through the bottom end face, and the crushing motor is fixed on the upper surface of the second horizontal supporting plate.

4. A coal mine comminution apparatus as claimed in claim 1 in which: and a plurality of rectangular pyramid bulges are respectively arranged on the impact surfaces of the first impact crushing disk and the second impact crushing disk.

5. A coal mine comminution apparatus as claimed in claim 1 in which: the periphery circumference of crushing roller is provided with a plurality of bar archs, and every the bellied length direction of bar all follows crushing roller's axis direction is in the same direction as extending.

6. A coal mine comminution apparatus as claimed in claim 1 in which: the discharge gate is provided with the discharge door, the discharge door articulates the lateral wall of crushing barrel.

7. A coal mine comminution apparatus as claimed in claim 1 in which: the collecting sieve comprises a sieve body supporting frame and a sieve plate arranged in the middle of the sieve body supporting frame, and a vibrator is arranged at the bottom of the sieve plate.

8. A coal mine comminution apparatus as claimed in claim 7 in which: the bottom of the screen body support frame is provided with a conical outlet, and a conveying belt is arranged below the conical outlet.

9. A coal mine comminution apparatus as claimed in claim 1 in which: the crushing roller, the conveying auger and the telescopic hydraulic cylinder are in signal connection with the controller.

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