CN219168625U - Coal-fired crushing device for thermal power generation - Google Patents

Abstract

The utility model relates to the field of coal crushing and discloses a coal crushing device for thermal power generation, which effectively solves the problems that materials cannot be screened and a crushing space is occupied in the process of twice crushing at present.

Description

Coal-fired crushing device for thermal power generation

Technical Field

The utility model belongs to the field of coal crushing, and particularly relates to a coal crushing device for thermal power generation.

Background

According to the patent document with the authority publication number of CN209254900U, the utility model is named as a selective coal mill for thermal power generation, and the specification of the patent document is as follows: when using, in leading-in grinding case with the fire coal through the feed inlet, open driving motor, driving motor drives rotation axis and crushing blade rotation, crushing blade smashes the fire coal, smash the fire coal after grinding and fall on the second filtration sieve board through evenly distributed's first filtration pore on the first filtration sieve board, because the second filtration sieve board is the slope setting, and the bottom of second filtration sieve board is provided with second vibrating motor, fire coal on the second filtration sieve board slides to the inclined end, and grind finer buggy in the fire coal and get into the bottom of grinding case through the second filtration pore, the fire coal of great granule gets into the storage case through the discharge gate and stores in, after a period of operation, the buggy that grinding case bottom stored is too much, when reaching the pressure value that pressure sensor predetermines, alarm device sends the alarm, in time remind people to clear up, people open the hasp on the door plant, clear up the buggy of grinding case bottom, but still have following defects:

in the process of crushing twice, the material cannot be screened, so that the smaller material is crushed twice, and the crushing space is occupied.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the coal-fired crushing device for thermal power generation, which effectively solves the problems that the material cannot be screened in the process of crushing twice at present and the crushing space is occupied.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the coal-fired crushing device for thermal power generation comprises a material collecting box, wherein a first crushing assembly is arranged above the material collecting box, and a second crushing assembly is arranged above the material collecting box;

the first crushing assembly comprises a machine body arranged above the material collecting box, the top end of the machine body is provided with a feeding pipe, the bottom end of the machine body is provided with a discharging pipe, the bottom end of the discharging pipe is provided with a material conveying plate, the material conveying plate is uniformly provided with first filtering holes, the bottom end of each first filtering hole is provided with a vibrating motor, and the material conveying plate is arranged in a downward inclined mode.

Preferably, a first support column is arranged on one side of the machine body, and the bottom end of the first support column is fixedly connected with the material collecting box.

Preferably, two crushing rollers are symmetrically arranged in the machine body, the two ends of each crushing roller are provided with rotating shafts, and the rotating shafts are rotationally connected with the machine body.

Preferably, gears are arranged on one end rotating shafts of the two crushing rollers, the two gears are meshed, one rotating shaft of the other end of one crushing roller is fixedly connected with an output shaft of the motor, and the motor is fixedly arranged on the machine body.

Preferably, the first crushing assembly comprises a feeding box arranged above the material collecting box, a first supporting column is arranged on one side of the feeding box, the bottom end of the first supporting column is fixedly connected with the material collecting box, a material storage box is arranged at the bottom end of the feeding box, second filtering holes are uniformly formed in the material storage box, the material storage box is in a circular truncated cone shape, and one side of the top end of the feeding box is fixedly connected with the bottom end of the material conveying plate.

Preferably, the top of feeding case evenly installs the bracing piece, and the roof is installed on the top of bracing piece.

Preferably, the breaking hammer is arranged below the top plate, the breaking hammer is in a round table shape, the top end of the breaking hammer is fixedly connected with the output end of the air cylinder, and the air cylinder is fixedly arranged at the top end of the top plate.

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

(1) According to the utility model, the crushed coal falls to the top end of the material conveying plate, the vibration motor is started, so that the material conveying plate vibrates, and the small-particle coal falls into the material collecting box from the first filter hole, so that the small-particle coal is prevented from being crushed again, the small-particle coal is prevented from occupying the regrinding space of the large-particle coal, and the crushing effect is improved;

(2) This novel slope setting through defeated flitch for big granule coal falls inside the storage case along defeated flitch, and reciprocating motion about the output of cylinder makes the quartering hammer roll big granule coal in the storage case, thereby conveniently carries out further smashing, thereby improves crushing effect.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

In the drawings:

FIG. 1 is a schematic diagram of a coal pulverizer for thermal power generation according to the present utility model;

FIG. 2 is a schematic view of a first crushing assembly according to the present utility model;

FIG. 3 is a schematic view of the crushing roller structure of the present utility model;

FIG. 4 is a schematic view of a second crushing assembly according to the present utility model;

in the figure: 1. a material collecting box; 2. a first support column; 3. a second support column; 4. a first crushing assembly; 401. a body; 402. a feed pipe; 403. a discharge pipe; 404. a material conveying plate; 405. a first filter hole; 406. a crushing roller; 407. a gear; 408. a motor; 5. a second crushing assembly; 501. a feed box; 502. a storage bin; 503. a second filter hole; 504. a support rod; 505. a top plate; 506. a breaking hammer; 507. and (3) a cylinder.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

1-4, the utility model comprises a material collecting box 1, a first crushing component 4 is arranged above the material collecting box 1, and a second crushing component 5 is arranged above the material collecting box 1;

the utility model provides a crushing system, a crushing system comprises a first crushing assembly 4, a machine body 401 arranged above a collection box 1, the inlet pipe 402 is installed on the top of the machine body 401, the discharging pipe 403 is installed to the bottom of the machine body 401, the delivery plate 404 is installed to the bottom of the discharging pipe 403, evenly seted up first filtration pore 405 on the delivery plate 404, vibrating motor is installed to the bottom of first filtration pore 405, the delivery plate 404 downward sloping sets up, first support column 2 is installed to one side of the machine body 401, the bottom and the collection box 1 fixed connection of first support column 2, the inside symmetry of machine body 401 is equipped with two crushing rollers 406, the pivot is all installed at the both ends of crushing rollers 406, the pivot is connected with the machine body 401 rotation, all install gear 407 in the one end pivot of two crushing rollers 406, two gears 407 mesh, one of them crushing roller 406 other end pivot and the output shaft fixed connection of motor 408, motor 408 fixed mounting is on the machine body 401, the crushed coal falls to delivery plate 404 top, open vibrating motor 404 makes delivery plate 404 take place the vibrations, make the granule coal fall into collection box 1 inside from first filtration pore 405, thereby the granule coal is crushed, the big granule coal is crushed again, the effect is avoided the granule is crushed again, the granule is crushed again.

The second crushing assembly 5 is including locating the feeding case 501 of collection workbin 1 top, the second support column 3 is installed to one side of feeding case 501, the bottom and the collection workbin 1 fixed connection of second support column 3, storage workbin 502 is installed to the bottom of feeding case 501, evenly seted up second filtration pore 503 on the storage workbin 502, storage workbin 502 sets up to be round platform form, the bottom fixed connection of top one side and the delivery plate 404 of feeding case 501, the bracing piece 504 is evenly installed on the top of feeding case 501, roof 505 is installed on the top of bracing piece 504, the below of roof 505 is equipped with quartering hammer 506, quartering hammer 506 sets up to be round platform form, the top of quartering hammer 506 and the output fixed connection of cylinder 507, cylinder 507 fixed mounting is in the top of roof 505, delivery plate 404 slope sets up, make large granule coal fall to storage workbin 502 inside along delivery plate 404, the output of cylinder 507 reciprocates from top to bottom, make quartering hammer 506 roll big granule coal in the storage workbin 502, thereby the convenience is smashed further, thereby improve crushing effect.

Working principle: when the coal crushing machine is used, coal raw materials are thrown into the machine body 401 from the feed pipe 402, the motor 408 is started at the moment, under the action of the two gears 407, the two crushing rollers 406 rotate relatively, when coal passes through the two crushing rollers 406, coal is crushed, then crushed coal falls to the top end of the conveying plate 404, the coal falls into the inside of the feed box 501 along the conveying plate 404 due to the inclined arrangement of the conveying plate 404, the vibrating motor is arranged at the bottom end of the first filter hole 405, after the vibrating motor is started, the conveying plate 404 is vibrated, then small-particle coal falls into the inside of the aggregate box 1 from the first filter hole 405, so that the small-particle coal is prevented from being crushed again, the small-particle coal is prevented from occupying the regrinding space of large-particle coal, the crushing effect is improved, after the large-particle coal enters the storage box 502, at the moment, the air cylinder 507 is started, the output end of the air cylinder 507 reciprocates up and down, so that the crushing hammer 506 is convenient to crush the large-particle coal in the storage box 502, and after crushing, the small-particle coal enters into the inside of the aggregate box 1 through the second filter hole 503.

Claims (7)

1. The utility model provides a fire coal reducing mechanism for thermal power, includes collection case (1), its characterized in that: a first crushing assembly (4) is arranged above the material collecting box (1), and a second crushing assembly (5) is arranged above the material collecting box (1);

the utility model provides a crushing assembly (4) is including locating organism (401) of collection case (1) top, and inlet pipe (402) are installed on the top of organism (401), and discharging pipe (403) are installed to the bottom of organism (401), and defeated flitch (404) are installed to the bottom of discharging pipe (403), have evenly seted up first filtration pore (405) on defeated flitch (404), and vibrating motor is installed to the bottom of first filtration pore (405), and defeated flitch (404) downward sloping sets up.

2. The coal pulverizing apparatus for thermal power generation according to claim 1, wherein: one side of the machine body (401) is provided with a first support column (2), and the bottom end of the first support column (2) is fixedly connected with the material collecting box (1).

3. The coal pulverizing apparatus for thermal power generation according to claim 1, wherein: two crushing rollers (406) are symmetrically arranged in the machine body (401), and rotating shafts are arranged at two ends of each crushing roller (406) and are rotatably connected with the machine body (401).

4. A coal pulverizing apparatus for thermal power generation according to claim 3, wherein: the two crushing rollers (406) are respectively provided with a gear (407) at one end rotating shaft, the two gears (407) are meshed, the rotating shaft at the other end of one crushing roller (406) is fixedly connected with the output shaft of the motor (408), and the motor (408) is fixedly arranged on the machine body (401).

5. The coal pulverizing apparatus for thermal power generation according to claim 1, wherein: the crushing subassembly of second (5) is including locating feeding case (501) of collection case (1) top, and second support column (3) are installed to one side of feeding case (501), and storage case (502) are installed to the bottom of second support column (3) and collection case (1) fixed connection, have evenly been seted up second filtration pore (503) on storage case (502), and storage case (502) set up to be the round platform form, and the bottom fixed connection of top one side and delivery board (404) of feeding case (501).

6. The coal pulverizing apparatus for thermal power generation according to claim 5, wherein: the top of feeding case (501) evenly installs bracing piece (504), roof (505) are installed on the top of bracing piece (504).

7. The coal pulverizing apparatus for thermal power generation according to claim 6, wherein: a breaking hammer (506) is arranged below the top plate (505), the breaking hammer (506) is in a round table shape, the top end of the breaking hammer (506) is fixedly connected with the output end of the air cylinder (507), and the air cylinder (507) is fixedly arranged at the top end of the top plate (505).

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