CN218271586U - Sealed pulverizer coal sample device - Google Patents

Abstract

The utility model discloses a coal sample device of a sealed crusher, which is characterized by comprising a cylindrical shell (7), an upper funnel (1), a self-reset baffle door (2) and a coal sample collecting bottle (10); the lower part of the upper hopper is fixedly connected with a breaking hammer (14) and a breaking ring (15) through a rope (3); the material bowl (16) is connected with the left rail (4) and the right rail (5) in a sliding manner, and the left rail (4) and the right rail (5) are fixedly connected to two sides of the wall of the cylindrical shell (7); the material bowl (16) is electrically connected with the vibration motor (17); the cleaning brush is characterized in that the cylindrical shell (7) is fixedly connected with a cleaning motor M3 (9) and a cleaning brush (8), and the cleaning brush (8) is electrically connected with the cleaning motor M3 (9). The utility model has the advantages of one-key start, automatic coal grinding, automatic collection, work efficiency is greatly improved.

Description

Sealed coal sample preparation device of pulverizer

Technical Field

The utility model relates to a device field of preparing of coal sample especially relates to sealed rubbing crusher mechanism coal sample device, mainly is applied to the preparation that the granularity is less than or equal to 0.2mm analysis base coal sample.

Background

In coal quality analysis, preparation of a coal sample is an important operation of the coal sample before analysis. At present, an automatic sampling machine is used for multi-point sampling, all the sampled representative coal samples are collected, crushed and divided by a hammer to prepare the coal samples with the granularity less than or equal to 3mm, and the coal samples with the granularity less than or equal to 3mm are continuously dried by air and then are subjected to a closed vibration pulverizer to prepare the analysis base coal samples with the granularity less than or equal to 0.2mm for industrial analysis.

At present, a pulverizer is used for preparing an analysis-based coal sample, the material is placed into a sealed material pot, equipment is started, and a motor drives an eccentric hammer and a crushing ring in the material pot to vibrate and impact, so that the granularity of the coal sample is less than or equal to 0.2mm, and then all coal powder in the material pot is manually cleaned to obtain the analysis-based coal sample. However, the closed vibrating mill has several disadvantages during use:

(1) The crushing granularity of the base coal sample is required to be less than or equal to 0.2mm when the base coal sample is analyzed, so that the impact material bowl of the vibration pulverizer needs to be heavy enough to meet the requirement, and the material bowl, the crushing hammer, the crushing ring and the material bowl cover are weighed to be 10 kilograms. The existing method wastes a large amount of manpower when manually collecting the ground coal dust sample. Practice proves that when the existing method is used for collecting coal samples, a plurality of coal grinding workers are weak, and the breaking hammer, the breaking ring and the material bowl are all made of metal products, so that the weight is heavy, the coal grinding workers are easy to fall off, and the workers are injured by smashing; a dust mask needs to be arranged in the process of collecting the coal sample to prevent occupational hazards caused by the fact that a human body inhales fine coal powder, and potential safety hazards exist. Because of coal quality unevenness, the coal sample is collected manually, so that operators easily cause coal dust to splash and scatter coal in the collection process, and the sample representativeness is poor.

(2) Because of coal quality unevenness, the coal sample is collected manually, so that operators easily cause coal dust to splash and scatter coal in the collection process, and the sample representativeness is poor.

(3) Meanwhile, a large amount of time can be wasted by manually collecting coal samples, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sealed rubbing crusher mechanism coal sample device has overcome above-mentioned prior art's shortcoming, has the advantage that automatic crushing was collected, the homogeneity is good, work efficiency is high.

The purpose of the utility model is realized through the following technical scheme:

a sealed coal sample crushing machine comprises a cylindrical shell, an upper hopper of a raw coal sample inlet above the cylindrical shell, and a self-resetting baffle door fixedly connected below the upper hopper; a rope is fixedly connected below the upper hopper, and the rope is fixedly connected with the breaking hammer and the breaking ring; the crushing hammer and the crushing ring are positioned in the material pot and can make relative collision motion with the inner wall of the material pot; the material bowl is connected with a left rail and a right rail in a sliding manner, and the left rail and the right rail are fixedly connected to two sides of the cylindrical shell wall; the lifting motor M2 acts on the material pot in an electrically driven connection mode, so that the material pot moves up and down on the left rail and the right rail; the material bowl is electrically connected with a vibration motor M1; and a limiter 1 and a limiter 2 are arranged on the left track or the right track.

The self-resetting baffle door is connected to the cylindrical shell through a spring structure or a torsion spring structure.

The lower part of the self-resetting baffle plate door is connected to the cylindrical shell through flexible connection.

And a cleaning motor M3 is fixedly connected to the cylindrical shell below the material bowl, and the cleaning motor M3 is electrically connected with the cleaning brush.

The coal sample collecting bottle is arranged at the lowest part of the cylindrical shell.

The rope is 3, one in the middle of the rope and middle quartering hammer fixed connection, 2 ropes in the side of rope both sides and broken ring fixed connection.

The operation principle is as follows:

1. pouring the coal sample into a funnel;

2. the self-resetting baffle door is always in a closed state due to the tensile force of the spring, and is opened when being pressed by the gravity of a coal sample, the coal sample falls into the material bowl, and the self-resetting baffle door is closed;

3. starting a vibration motor, and crushing the coal sample in the material bowl by the relative motion of the crushing hammer and the crushing ring;

4. after the running time is up, the vibration motor is stopped;

5. the lifting motor rotates forwards to enable the material bowl to descend, and the crushing ring and the crushing hammer are pulled by the rope and cannot descend. When the coal sample falls to the middle position, the material pot is completely separated from the crushing ring and the breaking hammer, the material pot rotates, the material pot enables the opening to be downward, the coal sample falls into the coal powder collecting bottle, the coal sample falls down to trigger the lower limiting stopper, and the material pot stops falling.

6. And starting a cleaning motor to clean the coal sample adhered in the material bowl, wherein the cleaned coal sample falls into a coal sample collecting bottle. The M3 cleaning motor 9 is stopped 30 seconds after the cleaning brush cleans.

7. The lifting motor rotates reversely to enable the material bowl to rise, when the material bowl rises to the middle position, the opening of the material bowl faces upwards, the crushing ring and the breaking hammer enter the material bowl, the limiting device 1 is triggered in the rising process, the material bowl stops rising, and at the moment, the traction ropes of the crushing ring and the breaking hammer are not stressed.

8. And (5) manually taking away the coal sample, and replacing a new coal sample collecting bottle to finish the coal sample preparation.

The utility model discloses an above-mentioned technical scheme has following beneficial effect:

1. the utility model overcomes the problem that prior art work efficiency is low, it is higher to have preparation granularity and be less than or equal to 0.2mm analysis base coal sample factor of safety, the homogeneity is good, and save time, laborsaving, it spatters outward to have avoided the coal sample, the characteristic that the sample representativeness is good is to the defect of using the milling machine now, the invention through machinery, electric mode that combines together, the operation of artifical collection sample has been solved, only need the manual work to put into the coal sample, a key starts, automatic system appearance is collected, make whole system appearance operational safety factor higher, and save time, laborsaving, the analysis work efficiency is greatly improved.

2 the utility model discloses to the defect of using the milling machine now, through machinery, the electric mode that combines together, solved the artifical operation of collecting the sample, make whole system appearance operating safety factor higher, and save time, laborsaving, improved analysis work efficiency greatly. One-key starting, automatic coal grinding and automatic collection are realized, and the working efficiency is greatly improved.

Drawings

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

FIG. 2 is the schematic view of the structure of the breaking hammer, the breaking ring and the material bowl of the present invention

Numbering in the figures: upper hopper 1, self-resetting baffle door 2, rope 3, left rail 4, right rail 5, lifting motor 6, cylindrical shell 7, cleaning brush 8, cleaning motor 9, pulverized coal collector 10, flexible connection 11, limiter 112, limiter 213, breaking hammer 14, breaking ring 15, material bowl 16 and vibrating motor 17

Detailed Description

As shown in fig. 1 and 2, the sealed coal sample crushing machine comprises an upper funnel 1, a self-resetting baffle door 2, a rope 3, a left rail 4, a right rail 5, a lifting motor 6, a cylindrical shell 7, a cleaning brush 8, a cleaning motor 9, a pulverized coal collector 10, a flexible connection 11, a limiter 112, a limiter 213, a breaking hammer 14, a breaking ring 15, a material bowl 16 and an M1 vibration motor 17.

The operation method comprises the following steps:

the raw coal sample is manually poured into the device from a funnel 1 at the upper part of the inlet of the device, falls into a material bowl 16 through a self-resetting baffle door 2, is automatically controlled by a PLC (programmable logic controller) by pressing a start button. Firstly, starting an M1 vibration motor 17, driving a coal sample in a material bowl 16 by the M1 vibration motor 17 to vibrate the material bowl 16, enabling a breaking hammer 14 and a breaking ring 15 in the material bowl 16 to move relative to the material bowl 16, grinding the raw coal sample into coal powder meeting the requirements under the relative action of the breaking hammer 14 and the breaking ring 15, and operating the vibration motor 17 for 2 minutes, wherein the granularity of the coal powder meets the requirements. The vibration motor 17 stops operating. The bowl 17 moves downward via the left rail 4 and the right rail 5, and the hammer 14 and the crushing ring 15 are pulled by the rope 3 and cannot fall down. The material pot 16 is separated from the breaking hammer 14 and the breaking ring 15, the separated material pot 16 carries out self-reverse motion in the downward power conveying process through the left track and the right track, so that the opening of the material pot 16 is downward, the bottom of the material pot is upward, most of coal samples fall into the pulverized coal collector 10 at the moment, when the material pot 16 moves downward to trigger the limiting device 213, the M2 lifting motor 6 stops running, the cleaning brush 8 is in close contact with the material pot 16 at the moment, after the lifting motor 6 stops running, 3 seconds are delayed, the cleaning motor 9 is started, the cleaning brush 8 cleans the material pot 16, the pulverized coal brush bonded in the material pot falls into the pulverized coal collector 10, and the cleaning brush automatically stops after 30 seconds of working. Then the lifting motor 6 is started to lift the material bowl 16 upwards, the material bowl 16 is rotated reversely again in the lifting process, the opening is made to face upwards, and when the limiting device 112 is triggered, the lifting motor 6 stops running. At this point, the device automatically stops, waiting for the next start. The coal dust collector 10 is manually taken down to finish the coal grinding and sample preparation of the raw coal sample.

The above technical scheme of the utility model, have a key start, automatic coal grinding, automatic collection improves work efficiency's advantage greatly.

Claims (6)

1. A coal sample device of a sealed pulverizer is characterized by comprising a cylindrical shell (7), an upper hopper (1) of a raw coal sample inlet above the cylindrical shell (7), and a self-resetting baffle door (2) fixedly connected below the upper hopper (1); a rope (3) is fixedly connected below the upper hopper, and the rope (3) is fixedly connected with a breaking hammer (14) and a breaking ring (15); the breaking hammer (14) and the breaking ring (15) are positioned in the material pot (16) and can make relative collision motion with the inner wall of the material pot (16); the material bowl (16) is connected with the left rail (4) and the right rail (5) in a sliding manner, and the left rail (4) and the right rail (5) are fixedly connected to two sides of the wall of the cylindrical shell (7); the lifting motor M2 (6) acts on the material bowl (16) in an electric drive connection mode, so that the material bowl (16) moves up and down on the left rail (4) and the right rail (5); the material bowl (16) is electrically connected with a vibration motor M1 (17); and the left track (4) or the right track (5) is provided with a stopper 1 (12) and a stopper 2 (13).

2. The seal type pulverizer coal sample device as claimed in claim 1, wherein the self-resetting flapper door (2) is connected to the cylinder type housing (7) by a spring structure or a torsion spring structure.

3. The seal type pulverizer coal sample device as claimed in claim 1, wherein the self-resetting flapper door (2) is connected to the cylindrical housing below by a flexible connection (11).

4. The device for sealed type pulverizing machine-made coal sample according to claim 1, wherein a cleaning motor M3 (9) is fixedly connected to the cylindrical shell (7) below the material bowl (16), and the cleaning motor M3 (9) is electrically connected with the cleaning brush (8).

5. The seal type pulverizer coal sample device as claimed in claim 1 or 2, wherein the lowest portion of the cylindrical housing (7) is a coal sample collecting bottle (10).

6. The seal type pulverizer coal sample device as claimed in claim 1, wherein said rope (3) is 3, the middle one of said rope (3) is fixedly connected with the middle breaking hammer (14), and the side 2 ropes on both sides of said rope (3) are fixedly connected with the breaking ring (15).

Images