CN216538680U

CN216538680U - Coal pulverizer containing rare earth motor

Info

Publication number: CN216538680U
Application number: CN202122735918.9U
Authority: CN
Inventors: 沈炳华; 杨敏; 童小忠; 沈逸渊
Original assignee: Hangzhou Dengyuan Technology Co ltd
Current assignee: Hangzhou Dengyuan Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-05-17
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a coal mill comprising a rare earth motor, which comprises a coal milling box, wherein a feeding pipe is arranged on the coal milling box, a valve for controlling the coal feeding amount is arranged on the feeding pipe, a power assembly is arranged on the inner wall of the coal milling box through a traversing mechanism, a crushing mechanism and a coal dust removing mechanism are arranged in the inner cavity of the coal milling box, the crushing mechanism comprises two crushing rollers arranged at two sides of the outlet of the feeding pipe, and the crushing rollers are connected with the power assembly arranged on the traversing mechanism through a driving shaft; the coal pulverizing device realizes the adjustment of coal feeding amount by arranging the valve to realize the adjustment of coal powder supply amount, and further adjusts the relative distance between the crushing rollers in the crushing mechanism by the transverse moving mechanism to adjust the degree of pulverized coal, thereby realizing the dual adjustment of coal pulverizing amount and degree, and further scraping the pulverized coal attached to the crushing mechanism by the coal dust removing mechanism while realizing the adjustment.

Description

Coal pulverizer containing rare earth motor

Technical Field

The utility model relates to the technical field of coal mills, in particular to a coal mill comprising a rare earth motor.

Background

The coal mill is a common device in a thermal power plant, the coal mill is a machine for crushing and grinding coal blocks into coal powder, and the existing coal mills mainly comprise a ball type coal mill, a roller type coal mill, a fan coal mill and the like according to different working principles.

In a roller coal mill, a power mechanism is often used for driving a coal milling roller to crush coal blocks so as to achieve the purpose of milling the coal. In the actual operation of coal grinding, dynamic adjustment is often required according to the coal dust demand of a power plant, the grindability and the ease of coal briquette, and the like, so that two aspects of adjustment are required, and the method specifically comprises the following steps:

firstly, dynamically adjusting the coal grinding quantity according to the quantity demand of the pulverized coal;

secondly, the coal grinding force is dynamically adjusted according to the grindability of the coal blocks and the requirement on particles.

In addition, in the whole coal grinding crushing process, due to long-term work, coal dust attached to the coal grinding roller and the like is gradually solidified, and if the coal grinding roller is not cleaned in time, the final grinding quality can be influenced, so that the supply of the coal dust is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a coal mill comprising a rare earth motor, and aims to solve the technical problems that a conventional coal mill cannot be adjusted and cannot actively remove coal dust in the prior art.

In order to solve the technical problems, the utility model specifically provides the following technical scheme:

the utility model provides a coal pulverizer that contains tombarthite motor, includes the coal grinding case, be provided with on the coal grinding case with the pan feeding pipe that the coal grinding incasement chamber is linked together be provided with the valve that is used for controlling into the coal volume on the pan feeding pipe, be provided with sideslip mechanism on the coal grinding incasement wall be provided with the power assembly in the sideslip mechanism, be provided with the broken mechanism that is used for broken coal cinder in the coal grinding incasement chamber and clear away the coal cinder clearance mechanism of coal cinder on the broken mechanism, broken mechanism include two set up in the crushing roller of pan feeding pipe export both sides, the crushing roller pass through the drive shaft and install power assembly on the sideslip mechanism is connected.

Further, the transverse moving mechanism comprises a mouth sub-beam fixedly installed on the coal grinding box, a bracket is installed on the mouth sub-beam through a sliding block, the power assembly is fixedly installed on the bracket, and a lock catch used for locking the sliding block on the mouth sub-beam is further installed on the sliding block.

Further, the coal cinder clearing mechanism includes fixed mounting and is in slide bar on the internal wall of coal grinding box top there is the davit through the mode slidable mounting that the cover was established on the slide bar, just the other end of davit is articulated installs the swing board, arc and touch force push rod are installed respectively to the swing board both sides, the arc with the laminating contact of crushing roller.

Furthermore, the arc-shaped plate is provided with a scraping brush through a contraction groove arranged on the arc-shaped plate.

Further, fixed mounting has a plurality of limit rail slide bars on the lateral wall of coal grinding box, and is a plurality of limit rail slide bar's tip cover is equipped with the touch board, just touch the power push rod and install through articulated touch on the board.

Furthermore, a plurality of limit rail slide bars are provided with a vibration motor through a clamping frame, and the output end of the vibration motor is directly connected with the contact plate.

Furthermore, each rail limiting slide rod is sleeved with a return spring, and two ends of each return spring are respectively directly connected with the side wall of the coal grinding box and the contact plate.

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

the coal dust removal device realizes the adjustment of coal feeding amount by arranging the valve to realize the adjustment of coal dust supply amount, further adjusts the relative distance between the crushing rollers in the crushing mechanism by the transverse moving mechanism to adjust the degree of the pulverized coal, thereby realizing the dual adjustment of the coal grinding amount and the degree, and further scrapes off the pulverized coal attached to the crushing mechanism by the coal dust removal mechanism while realizing the adjustment so as to avoid the influence on the final pulverized coal quality caused by the aggregation of the pulverized coal.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a coal dust removing mechanism according to the present invention;

FIG. 3 is a schematic structural view of the traversing mechanism according to the present invention;

the reference numerals in the drawings denote the following, respectively:

1-grinding a coal box; 2-a feeding pipe; 3-a crushing mechanism; 4-a coal dust removal mechanism; 5-a valve; 6-a transverse moving mechanism; 7-a power train;

301-a crushing roller; 302-a drive shaft;

401-a slide bar; 402-a boom; 403-a wobble plate; 404-an arc plate; 405-touch force push rod; 406-a shrink groove; 407-scraping brush; 408-a rail-limiting sliding rod; 409-touch panel; 410-a holding frame; 411-a vibration motor; 412-a return spring;

601-square beam; 602-bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, the utility model provides a coal mill comprising a rare earth motor, which comprises a coal milling box 1, wherein a feeding pipe 2 communicated with an inner cavity of the coal milling box 1 is arranged on the coal milling box 1, a valve 5 for controlling a coal feeding amount is arranged on the feeding pipe 2, a traversing mechanism 6 is arranged on an inner wall of the coal milling box 1, a power assembly 7 is arranged on the traversing mechanism 6, and a crushing mechanism 3 for crushing coal blocks and a coal dust removing mechanism 4 for removing coal dust on the crushing mechanism 3 are arranged in the inner cavity of the coal milling box 1.

When the coal mill works, the power assembly 7, specifically a rare earth motor or other power mechanisms with the same function, drives the crushing mechanism 3 to rotate,

the power assembly 7 and the crushing mechanism 3 are integrated, and the integrated structure formed by the power assembly 7 and the crushing mechanism 3 can slide on the transverse moving mechanism 6, so that the crushing rollers 301 in the crushing mechanism 3 are adjusted to move relatively, the distance between the two is adjusted, and the purpose of adjusting the granularity of the pulverized coal is achieved.

Furthermore, according to the requirement of the power plant for the pulverized coal, the coal feeding amount can be adjusted by adjusting the valve 5, so that the coal grinding amount is controlled, and the energy requirement is met. In the present embodiment, the crushing mechanism 3 includes two crushing rollers 301 disposed on both sides of the outlet of the feeding pipe 2, and the crushing rollers 301 are connected to the power assembly 7 mounted on the traversing mechanism 6 through a driving shaft 302. Two crushing rollers 301 of broken mechanism 3 of output drive of power assembly rotate in the coal grinding case 1 in opposite directions, put into a certain amount of coal cinder through pan feeding pipe 2 in to coal grinding case 1 afterwards, the coal cinder falls to between two crushing rollers 301 in coal grinding case 1 inner chamber, and two crushing rollers 301 can form the extrusion to the coal cinder fast to make the coal cinder break into the powder.

As shown in fig. 3, the traversing mechanism 6 includes a mouth beam 601 fixedly installed on the coal grinding box 1, a bracket 602 is installed on the mouth beam 601 through a slider, the power assembly 7 is fixedly installed on the bracket 602, and a latch for locking the slider on the mouth beam 601 is also installed on the slider. In this embodiment, the bracket and the slider slide in the notched beam to adjust the relative distance between the two crushing rollers 301, so that the purpose of adjusting the particle size of the ground coal can be achieved, and the two crushing rollers 301 are fixed to the notched beam by the lock after their positions are determined.

Although the above-mentioned embodiment can be effectual crush the coal cinder for the coal cinder forms the powder, in the in-service use process, when crushing roller 301 extrudees the coal cinder to become the powder, certain coal cinder can be attached to on the extrusion surface of crushing roller 301, long-time use, the coal cinder can be more on the surface of crushing roller 301, lead to the whole thickness of crushing roller 301 also along with the increase, so that influence the particle size after the coal cinder is broken, influence buggy production quality, consequently, need regularly clear up crushing roller 301.

In this embodiment, the coal dust removing mechanism 4 includes a slide rod 401 fixedly mounted on the inner wall of the top of the coal grinding box 1, a suspension arm 402 is slidably mounted on the slide rod 401 in a sleeved manner, a swing plate 403 is hinged to the other end of the suspension arm 402, an arc plate 404 and a contact push rod 405 are respectively mounted on two sides of the swing plate 403, the arc plate 404 is in contact with the crushing roller 301 in an attached manner, and a scraping brush 407 is mounted on the arc plate 401 through a contraction groove 406 formed in the arc plate.

When the rotation of crushing roller 301 carries out the breakage to the coal cinder of puting in into grinding the coal incasement 1, scrape the sustainable roller face with crushing roller 301 of material brush 407 and scrape mutually to clear away its surperficial adnexed coal cinder fast, guarantee the clean degree on crushing roller 301 surface.

In order to ensure a continuous cleaning of the crushing roller 301 by the arc plate 404 and the scraper brush 407 arranged thereon, the utility model provides that it is supported on its sides in addition to being mounted in a suspended manner.

Specifically, the method comprises the following steps: grind on the lateral wall of coal bin 1 fixed mounting have a plurality of limit rail slide bars 408, and a plurality of limit rail slide bar 408's tip cover is equipped with the contact force board 409, just the contact force push rod 405 is installed through articulated on the contact force board 409.

Meanwhile, in order to prevent the pulverized coal from being adhered to the arc-shaped plate 404 and the scraper brush 407, a vibration motor 411 is mounted on the plurality of rail-limiting sliding rods 408 through a clamping frame 410, and an output end of the vibration motor 411 is directly connected with the contact plate 409. By the non-regular or regular starting of the vibration motor 411, the vibration effect is achieved, so that the pulverized coal adhered to the arc-shaped plate 404 and the scraper brush 407 falls off.

In order to enhance the vibration effect, a return spring 412 is sleeved on each rail-limiting sliding rod 408, and two ends of the return spring 412 are directly connected with the side wall of the coal grinding box 1 and the contact plate 409 respectively.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims

1. A coal mill comprising a rare earth motor comprises a coal milling box (1), wherein a feeding pipe (2) communicated with the inner cavity of the coal milling box (1) is arranged on the coal milling box (1), it is characterized in that a valve (5) for controlling the coal feeding amount is arranged on the feeding pipe (2), a transverse moving mechanism (6) is arranged on the inner wall of the coal grinding box (1), a power assembly (7) is arranged on the transverse moving mechanism (6), a crushing mechanism (3) for crushing coal blocks and a coal dust removing mechanism (4) for removing coal dust on the crushing mechanism (3) are arranged in the inner cavity of the coal grinding box (1), the crushing mechanism (3) comprises two crushing rollers (301) arranged at two sides of the outlet of the feeding pipe (2), the crushing roller (301) is connected with a power assembly (7) arranged on the transverse moving mechanism (6) through a driving shaft (302).

2. The coal mill containing the rare earth motor as recited in claim 1, wherein the traversing mechanism (6) comprises a port beam (601) fixedly mounted on the coal milling box (1), a bracket (602) is mounted on the port beam (601) through a sliding block, the power assembly (7) is fixedly mounted on the bracket (602), and a latch for locking the sliding block on the port beam (601) is further mounted on the sliding block.

3. The coal mill containing the rare earth motor as claimed in claim 1, wherein the coal dust removing mechanism (4) comprises a slide rod (401) fixedly mounted on the inner wall of the top of the coal milling box (1), a suspension arm (402) is slidably mounted on the slide rod (401) in a sleeved manner, a swing plate (403) is hinged to the other end of the suspension arm (402), an arc plate (404) and a touch force push rod (405) are respectively mounted on two sides of the swing plate (403), and the arc plate (404) is in contact with the crushing roller (301).

4. The coal pulverizer of claim 3, wherein the arcuate plate (404) is fitted with a scraper brush (407) through a constricting channel (406) provided thereon.

5. The coal mill containing the rare earth motor as claimed in claim 4, wherein a plurality of rail limiting sliding rods (408) are fixedly mounted on the side wall of the coal milling box (1), a contact force plate (409) is sleeved on the end portion of the plurality of rail limiting sliding rods (408), and the contact force push rod (405) is mounted on the contact force plate (409) through hinging.

6. The coal mill containing the rare earth motor as claimed in claim 5, wherein a vibration motor (411) is mounted on a plurality of rail limiting sliding rods (408) through a clamping frame (410), and an output end of the vibration motor (411) is directly connected with the contact plate (409).

7. The coal mill containing the rare earth motor as claimed in claim 5 or 6, wherein each rail-limiting sliding rod (408) is sleeved with a return spring (412), and two ends of each return spring (412) are directly connected with the side wall of the coal milling box (1) and the contact plate (409) respectively.