CN219519049U

CN219519049U - Wear-resisting limiting device for coal mill

Info

Publication number: CN219519049U
Application number: CN202320608090.7U
Authority: CN
Inventors: 于学旺; 唐玉兰; 杨桐森; 陈德清; 刘胜奇
Original assignee: Tianjin Deliwei Machinery Manufacturing Co ltd
Current assignee: Tianjin Deliwei Machinery Manufacturing Co ltd
Priority date: 2023-03-25
Filing date: 2023-03-25
Publication date: 2023-08-15
Anticipated expiration: 2033-03-25

Abstract

The utility model discloses a wear-resistant limiting device for a coal mill, which comprises a medium-speed grinding stop ring, a wear-resistant mechanism, a fixing mechanism and a connecting mechanism, wherein the wear-resistant mechanism is positioned at the outer end of the medium-speed grinding stop ring, the fixing mechanism is positioned at the outer end of the medium-speed grinding stop ring, the connecting mechanism is positioned at the outer end of the fixing mechanism, the wear-resistant mechanism comprises wear-resistant convex blocks, wear-resistant grooves and round holes, the wear-resistant convex blocks are fixedly arranged at the outer end of the medium-speed grinding stop ring, and the number of the wear-resistant convex blocks is a plurality. This wear-resisting stop device for coal pulverizer, through setting up wear-resisting mechanism, wear-resisting lug, wear-resisting groove's setting makes the contact surface of medium speed mill baffle ring and coal pulverizer's mill no longer be smooth plane, has prevented that medium speed mill baffle ring from being excessively worn and torn to wear-resisting lug, wear-resisting groove's setting have increased the area of contact between the coal cinder on medium speed mill baffle ring and the coal pulverizer mill, thereby can fully grind the coal cinder, have improved the efficiency that the coal cinder was ground.

Description

Wear-resisting limiting device for coal mill

Technical Field

The utility model relates to the technical field of medium-speed grinding baffle rings, in particular to a wear-resistant limiting device for a coal mill.

Background

The coal pulverizer is a machine of grinding the coal cinder into buggy, and the mill that the mill of general coal pulverizer keeps off the ring and all is laminated mutually with the mill of bottom when using, and the mill also can rotate when rotating, thereby grinds the coal cinder, but the mill that the mill keeps off the ring of general coal pulverizer only sets up singly or two, consequently grinds efficiency comparatively low. To solve this problem, three or more grinding rings are usually disposed inside the coal pulverizer so as to improve the efficiency of coal grinding. But the surface of the grinding baffle ring of the existing coal mill is mostly of a smoother and flatter structure, and the grinding baffle ring is possibly worn greatly due to long-term contact friction with the grinding disc, so that the service life of the grinding baffle ring can be influenced, and the contact area of the smoother surface of the grinding baffle ring is smaller when the smoother surface contacts with coal blocks, so that the coal blocks are difficult to be ground into coal dust more quickly.

Disclosure of Invention

The utility model aims to provide a wear-resistant limiting device for a coal mill, which aims to solve the problems that in the prior art, the surface of a grinding baffle ring of the conventional coal mill is mostly of a smoother and flatter structure, the grinding baffle ring is possibly worn greatly due to long-term contact friction with a grinding disc, and the contact area is small when the grinding baffle ring contacts with coal blocks, so that the coal blocks are difficult to grind into coal dust more quickly.

The utility model provides the following technical scheme:

the utility model provides a wear-resisting stop device for coal pulverizer, includes medium speed mill baffle ring, wear-resisting mechanism, fixed establishment and coupling mechanism, wear-resisting mechanism is located the outer end of medium speed mill baffle ring, fixed establishment is located the outer end of medium speed mill baffle ring, coupling mechanism is located the outer end of fixed establishment, wear-resisting mechanism includes wear-resisting lug, wear-resisting groove and round hole, wear-resisting lug fixed mounting is at the outer end of medium speed mill baffle ring, wear-resisting lug's quantity is a plurality of, wear-resisting lug is the equidistance and arranges, wear-resisting groove is fixed the outer end that sets up at medium speed mill baffle ring, wear-resisting groove is located between wear-resisting lug and the wear-resisting lug, the round hole is fixed to be set up the outer end at medium speed mill baffle ring, the quantity of round hole is a plurality of, the round hole is the equidistance and arranges, through setting up wear-resisting mechanism, has prevented that the medium speed mill baffle ring from being excessively worn down to the efficiency that the coal cinder was ground has been improved.

Further: the fixed establishment includes fixed plate, pivot, fixed block and set screw, fixed plate movable mounting grinds the left end of keeping off the ring at the medium speed, the right-hand member at the fixed plate is installed to the pivot, pivot and medium speed grind keep off ring swing joint, the fixed block is installed and is kept off the left end of ring at the medium speed, through setting up fixed establishment, can play the fixed effect of support to the medium speed and grind the keep off ring, makes it can rotate round the pivot, can rotate along with the rotation of mill.

Further: the fixing screw penetrates through the fixing block, the middle speed grinding baffle ring and is in threaded connection with the fixing block and the middle speed grinding baffle ring, and the rotating shaft penetrates through the fixing plate and is fixedly connected with the fixing block.

Further: the connecting mechanism comprises a connecting plate, a connecting rod, a first connecting frame, a first connecting shaft, a connecting column, a second connecting frame, a second connecting shaft, a mounting plate and a mounting hole, wherein the connecting plate is fixedly mounted at the upper end of the fixing plate and is symmetrically distributed, the connecting rod is fixedly mounted at the upper end of the connecting plate and is symmetrically distributed, the first connecting frame is movably mounted at the outer end of the connecting rod, and the first connecting shaft is fixedly mounted at the outer end of the first connecting frame.

Further: the spliced pole fixed mounting is in the upper end of first link, second link movable mounting is in the outer end of spliced pole, second connecting axle fixed mounting is in the outer end of second link, mounting panel fixed mounting is in the rear end of second link, the mounting hole is fixed to be set up the outer end at the mounting panel.

The beneficial effects of the utility model are as follows:

according to the utility model, the wear-resistant mechanism is arranged, the contact surface of the medium-speed grinding baffle ring and the millstone of the coal mill is not a smooth plane any more due to the arrangement of the wear-resistant convex blocks and the wear-resistant grooves, so that the medium-speed grinding baffle ring is prevented from being excessively worn, the contact area between the medium-speed grinding baffle ring and the coal on the millstone of the coal mill is increased due to the arrangement of the wear-resistant convex blocks and the wear-resistant grooves, and therefore, the coal can be sufficiently ground, and the grinding efficiency of the coal is improved.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of a middle speed grinding baffle ring according to the present utility model;

FIG. 3 is a schematic diagram showing a front cross-sectional structure of a middle speed grinding baffle ring according to the present utility model;

FIG. 4 is a schematic side view of a middle speed grinding baffle ring according to the present utility model;

fig. 5 is a schematic perspective view of the connecting mechanism of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

The utility model provides a wear-resisting stop device for coal pulverizer, including medium speed mill baffle ring 1, wear-resisting mechanism 2, fixed establishment 3 and coupling mechanism 4, wear-resisting mechanism 2 is located the outer end of medium speed mill baffle ring 1, fixed establishment 3 is located the outer end of medium speed mill baffle ring 1, coupling mechanism 4 is located the outer end of fixed establishment 3, wear-resisting mechanism 2 includes wear-resisting lug 201, wear-resisting groove 202 and round hole 203, wear-resisting lug 201 fixed mounting is at the outer end of medium speed mill baffle ring 1, the quantity of wear-resisting lug 201 is a plurality of, wear-resisting lug 201 is the equidistance and arranges, wear-resisting groove 202 is fixed to be located between wear-resisting lug 201 and wear-resisting lug 201, wear-resisting groove 202 is fixed to be set up at the outer end of medium speed mill baffle ring 1, the quantity of round hole 203 is a plurality of round hole 203 is the equidistance and arranges, through setting up wear-resisting mechanism 2, wear-resisting lug 201, the setting up of wear-resisting groove 202 makes the contact surface of mill baffle ring 1 and mill plate no longer smooth plane, prevent that wear-resisting lug 1 from being by the wear-resisting lug 202, and the wear-resisting lug 202 are arranged on the medium speed mill coal mill baffle ring 1, and the contact area between the mill coal mill can be fully increased, thereby, the wear-resisting efficiency of the mill can be increased;

the fixing mechanism 3 comprises a fixing plate 301, a rotating shaft 302, a fixing block 303 and a fixing screw 304, wherein the fixing plate 301 is movably arranged at the left end of the medium speed grinding baffle ring 1, the rotating shaft 302 is arranged at the right end of the fixing plate 301, the rotating shaft 302 is movably connected with the medium speed grinding baffle ring 1, the fixing block 303 is arranged at the left end of the medium speed grinding baffle ring 1, the fixing mechanism 3 is arranged, the fixing block 303, the rotating shaft 302 and the fixing plate 301 can be fixed together by the fixing screw 304, and the rotating shaft 302 is movably connected with the medium speed grinding baffle ring 1, so that the medium speed grinding baffle ring 1 can play a supporting and fixing role, can rotate around the rotating shaft 302 and can rotate along with the rotation of the grinding disc; the fixing screw 304 penetrates through the fixing block 303 and the medium speed grinding baffle ring 1 and is in threaded connection with the fixing block 303 and the medium speed grinding baffle ring 1, and the rotating shaft 302 penetrates through the fixing plate 301 and is fixedly connected with the fixing block 303; the connecting mechanism 4 comprises a connecting plate 401, connecting rods 402, a first connecting frame 403, a first connecting shaft 404, connecting columns 405, a second connecting frame 406, a second connecting shaft 407, a mounting plate 408 and mounting holes 409, wherein the connecting plate 401 is fixedly arranged at the upper end of the fixed plate 301, the connecting plates 401 are symmetrically distributed, the connecting rods 402 are fixedly arranged at the upper end of the connecting plates 401, the connecting rods 402 are symmetrically distributed, the first connecting frame 403 is movably arranged at the outer end of the connecting rods 402, the first connecting shaft 404 is fixedly arranged at the outer end of the first connecting frame 403, and the first connecting shaft 404 is convenient for fixedly connecting the connecting frames with the connecting rods 402 through the arrangement of the connecting mechanism 4;

the connecting column 405 is fixedly arranged at the upper end of the first connecting frame 403, the second connecting frame 406 is movably arranged at the outer end of the connecting column 405, the second connecting shaft 407 is fixedly arranged at the outer end of the second connecting frame 406, the mounting plate 408 is fixedly arranged at the rear end of the second connecting frame 406, the mounting hole 409 is fixedly arranged at the outer end of the mounting plate 408, the second connecting frame 406 and the connecting column 405 can be conveniently and fixedly connected together, the mounting hole 409 is penetrated by a fastener such as a bolt, and the device can be fixedly arranged on a cross beam of a coal mill body, so that coal blocks can be ground by using the medium-speed grinding baffle ring 1; the first connecting shaft 404 penetrates through the connecting rod 402 and is movably connected with the connecting rod 402, and the second connecting shaft 407 penetrates through the connecting column 405 and is movably connected with the connecting column 405; the fixing screws 304 are equidistantly arranged, and the mounting holes 409 are symmetrically distributed.

Working principle: utilize fastener such as bolt to run through mounting hole 409, can be with this device fixed mounting on the crossbeam of coal pulverizer organism, utilize set screw 304 can be together fixed block 303, pivot 302 and fixed plate 301, swing joint between pivot 302 and the medium speed mill baffle ring 1, thereby can play the fixed effect of support to medium speed mill baffle ring 1, make it can rotate round pivot 302, can rotate along with the rotation of mill, thereby can utilize medium speed mill baffle ring 1 to grind the coal cinder, wear-resisting lug 201, wear-resisting groove 202's setting makes the contact surface of medium speed mill baffle ring 1 and mill of coal pulverizer no longer be smooth plane, medium speed mill baffle ring 1 has been prevented by excessive wearing, and wear-resisting lug 201, wear-resisting groove 202's setting has increased the area of contact between medium speed mill baffle ring 1 and the coal cinder on the mill of coal pulverizer, thereby can fully grind the coal cinder, the efficiency of coal cinder grinding has been improved.

Claims

1. The utility model provides a wear-resisting stop device is used to coal pulverizer, includes medium speed mill baffle ring, wear-resisting mechanism, fixed establishment and coupling mechanism, its characterized in that: the wear-resisting mechanism is located the outer end of medium speed mill baffle ring, fixed establishment is located the outer end of medium speed mill baffle ring, coupling mechanism is located the outer end of fixed establishment, wear-resisting mechanism includes wear-resisting lug, wear-resisting groove and round hole, wear-resisting lug fixed mounting is at the outer end of medium speed mill baffle ring, wear-resisting lug's quantity is a plurality of, wear-resisting lug is the equidistance and arranges, wear-resisting groove is fixed to be set up at the outer end of medium speed mill baffle ring, wear-resisting groove's quantity is a plurality of, wear-resisting groove is the equidistance and arranges, wear-resisting groove is located between wear-resisting lug and the wear-resisting lug, the fixed outer end that sets up at medium speed mill baffle ring of round hole, the quantity of round hole is a plurality of, the round hole is the equidistance and arranges.

2. The wear-resistant limiting device for a coal mill according to claim 1, wherein: the fixed mechanism comprises a fixed plate, a rotating shaft, a fixed block and a fixed screw, wherein the fixed plate is movably arranged at the left end of the middle speed grinding baffle ring, the rotating shaft is arranged at the right end of the fixed plate, the rotating shaft is movably connected with the middle speed grinding baffle ring, and the fixed block is arranged at the left end of the middle speed grinding baffle ring.

3. The wear-resistant limiting device for a coal mill according to claim 2, wherein: the fixing screw penetrates through the fixing block, the middle speed grinding baffle ring and is in threaded connection with the fixing block and the middle speed grinding baffle ring, and the rotating shaft penetrates through the fixing plate and is fixedly connected with the fixing block.

4. A wear resistant limit device for a coal mill according to claim 3, wherein: the connecting mechanism comprises a connecting plate, a connecting rod, a first connecting frame, a first connecting shaft, a connecting column, a second connecting frame, a second connecting shaft, a mounting plate and a mounting hole, wherein the connecting plate is fixedly mounted at the upper end of the fixing plate and is symmetrically distributed, the connecting rod is fixedly mounted at the upper end of the connecting plate and is symmetrically distributed, the first connecting frame is fixedly mounted at the outer end of the connecting rod, and the first connecting shaft is fixedly mounted at the outer end of the first connecting frame.

5. The wear-resistant limiting device for a coal pulverizer as recited in claim 4, wherein: the spliced pole fixed mounting is in the upper end of first link, second link fixed mounting is in the outer end of spliced pole, second connecting axle fixed mounting is in the outer end of second link, mounting panel fixed mounting is in the rear end of second link, the mounting hole is fixed to be set up the outer end at the mounting panel.

6. The wear-resistant limiting device for a coal pulverizer as recited in claim 5, wherein: the first connecting shaft penetrates through the connecting rod and is fixedly connected with the connecting rod, and the second connecting shaft penetrates through the connecting column and is fixedly connected with the connecting column.

7. The wear-resistant limiting device for a coal pulverizer as recited in claim 6, wherein: the fixing screws are distributed at equal intervals, and the mounting holes are symmetrically distributed.