CN211099460U

CN211099460U - Multistage coal pulverizer for coal processing

Info

Publication number: CN211099460U
Application number: CN201921351344.1U
Authority: CN
Inventors: 刘露艳
Original assignee: Inner Mongolia Guanglilong Energy Co Ltd
Current assignee: Inner Mongolia Guanglilong Energy Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-07-28
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a multi-stage coal mill for coal processing, which comprises a coal milling cylinder and a discharging mechanism, wherein a lining plate is arranged on the inner wall of the coal milling cylinder, a first-stage crushing mechanism is arranged on one side of the coal milling cylinder, a feeding mechanism is arranged below the first-stage crushing mechanism, a filtering mechanism is arranged inside one side of the coal milling cylinder, which is far away from the first-stage crushing mechanism, the filtering mechanism comprises an outer mounting ring, a filtering screen plate is arranged inside the outer mounting ring, the discharging mechanism comprises a discharging pipe, and a net cleaning mechanism is arranged on the discharging mechanism. To ensure the work of the filter screen plate.

Description

Multistage coal pulverizer for coal processing

Technical Field

The utility model relates to a coal processing technology field specifically is a coal processing is with multistage coal pulverizer.

Background

The coal grinding method is characterized in that a ball mill is generally used when coal is processed and ground, the ball mill generally consists of a grinding cylinder, grinding balls, a feeding screw, a hot air inlet and a hot air outlet, wherein the grinding cylinder is driven by a large gear ring and a motor to rotate;

in order to avoid discharging pulverized coal which is not up to standard after being ground along with hot air, the pulverized coal which is not up to standard cannot pass through a filter screen of the existing ball mill with the filter screen arranged inside a grinding cylinder;

such a ball mill has the following drawbacks:

1. the coal blocks are directly ground in a ball milling mode, so that the grinding efficiency is low;

2. the pulverized coal which does not reach the standard and has light weight can be tightly attached to the filter screen plate in the positive pressure state of hot air, so that the filtering work of the filter screen plate is influenced.

SUMMERY OF THE UTILITY MODEL

3. An object of the utility model is to provide a coal processing is with multistage coal pulverizer to directly use the mode of ball-milling to grind the coal cinder among the solution prior art, low and not up to standard of grinding efficiency and the buggy that the quality is lighter can paste tightly on filtering the otter board under hot-blast malleation state, influences the problem of filtering the filter work of otter board.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-stage coal mill for coal processing comprises a coal milling barrel and a discharging mechanism, wherein a lining plate is arranged on the inner wall of the coal milling barrel, one side of the coal milling barrel is provided with a first-stage crushing mechanism, a feeding mechanism is arranged below the first-stage crushing mechanism, one side of the feeding mechanism is provided with a hot air inlet, one side, away from the first-stage crushing mechanism, of the coal milling barrel is internally provided with a filtering mechanism, the filtering mechanism comprises an outer mounting ring, the inside of the outer mounting ring is provided with a filtering screen plate, the middle of the filtering screen plate is provided with an inner mounting ring, the discharging mechanism comprises a discharging pipe, one end of the discharging pipe is inserted into the coal milling barrel, one end, inserted into the coal milling barrel, of the discharging pipe is fixed with a discharging hopper, the discharging mechanism is arranged on the discharging mechanism and comprises a connecting rod and a cross shaft, one end of the cross shaft is, and the other end of cross axle passes interior collar, and the cross axle passes the one end top of interior collar and installs the brush utensil mounting panel, the brush utensil mounting panel is close to the one side of filtering screen board and installs the brush.

Preferably, one side of the discharge hopper close to the filtering mechanism is integrally formed with an insertion ring, a groove ring is arranged on the circumference of one side of the outer installation ring close to the insertion ring, and the insertion ring is inserted into the groove ring.

Preferably, the broken mechanism of one-level includes broken case, and four corners in the below of broken case all are fixed with the supporting leg, and the top of broken case is provided with the feeding hopper, and the position that the inside of broken case is close to the top is provided with two crushing rollers side by side, feeding mechanism includes hollow shaft and bulge cylinder, and the bulge cylinder setting is close to one side below of grinding the coal section of thick bamboo at broken case, link up the inside at bulge cylinder and broken case about the hollow shaft, and the circumference outside of hollow shaft is provided with spiral pay-off sword.

Preferably, one end of the hollow shaft, which is far away from the coal grinding cylinder, penetrates through the crushing box, and a driving device is connected to the periphery of the end, which is far away from the coal grinding cylinder, of the hollow shaft.

Preferably, the driving device comprises a motor and a driven gear, the driven gear is fixed outside the circumference of the hollow shaft, a driving gear is installed at the power output end of the motor, and the driving gear is meshed with the driven gear.

Preferably, the circumferential outer wall of the outer mounting ring is connected with the lining plate in a welding mode, and the inner mounting ring is rotatably connected with the transverse shaft through a bearing.

Preferably, the grinding balls are arranged inside the coal grinding cylinder.

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

1. the utility model firstly uses the crushing device to crush the coal blocks, and then grinds the coal blocks after the coal blocks are crushed into smaller particles, so that the grinding efficiency is greatly improved;

2. the utility model discloses set up net cleaning mechanism, net cleaning mechanism's inside brush is the irrotational state when filtering the rotation of otter board, so the brush can be for filtering under the rotation state otter board and sweeping the tight not up to standard buggy of surface subsides to the work of filter plate is guaranteed to filter.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the feeding mechanism of the present invention;

fig. 3 is a schematic structural view of the driving device of the present invention;

FIG. 4 is a schematic view of a discharge tube according to the present invention;

FIG. 5 is a schematic view of the connection structure of the filtering mechanism of the present invention;

fig. 6 is a schematic structural diagram of the filtering mechanism of the present invention.

In the figure: 1. grinding balls; 2. a primary crushing mechanism; 21. a feeding hopper; 22. a crushing box; 23. a crushing roller; 24. supporting legs; 3. a feeding mechanism; 31. a spiral feeding knife; 32. a drive device; 321. a motor; 322. a driving gear; 323. a driven gear; 33. a hollow shaft; 34. a protruding cylinder; 4. grinding a coal cylinder; 5. a liner plate; 6. a filtering mechanism; 61. an outer mounting ring; 62. a filter screen plate; 63. an inner mounting ring; 7. a discharging mechanism; 71. a discharge pipe; 72. a discharge hopper; 73. inserting a ring; 8. a net cleaning mechanism; 81. A connecting rod; 82. a horizontal axis; 83. a brush mounting plate; 84. a brush; 10. and a hot air inlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, a multi-stage coal mill for coal processing includes a coal milling barrel 4 and a discharging mechanism 7, a grinding ball 1 is disposed inside the coal milling barrel 4, a lining plate 5 is disposed on an inner wall of the coal milling barrel 4, and the lining plate 5 provides strength for the coal milling barrel 4 to prevent the coal milling barrel 4 from being damaged by the grinding ball 1 for a long time;

referring to fig. 1, a primary crushing mechanism 2 is arranged on one side of a coal grinding cylinder 4, each coal block of a larger coal block can be crushed by the primary crushing mechanism 2, a feeding mechanism 3 is arranged below the primary crushing mechanism 2, the feeding mechanism 3 can feed the crushed coal into the coal grinding cylinder 4, a hot air inlet 10 is arranged on one side of the feeding mechanism 3, and the hot air inlet 10 is used for introducing hot air;

referring to fig. 1 and 2, the primary crushing mechanism 2 includes a crushing box 22, support legs 24 are fixed at four corners below the crushing box 22, a feeding hopper 21 is arranged above the crushing box 22, the feeding hopper 21 is used for feeding coal briquettes into the crushing box 22, two crushing rollers 23 arranged side by side are arranged in the crushing box 22 close to the upper position, a driving motor should be installed on each crushing roller 23, and the two driving motors respectively drive the crushing rollers 23 to rotate clockwise and counterclockwise (as shown in fig. 1, the left crushing roller 23 rotates clockwise, and the right crushing roller 23 rotates counterclockwise);

referring to fig. 1 and 2, the feeding mechanism 3 includes a hollow shaft 33 and a protruding cylinder 34, the protruding cylinder 34 is disposed below one side of the crushing box 22 close to the coal grinding cylinder 4, the hollow shaft 33 penetrates through the protruding cylinder 34 and the crushing box 22 from left to right, a spiral feeding knife 31 is disposed outside the circumference of the hollow shaft 33, one end of the hollow shaft 33 far away from the coal grinding cylinder 4 penetrates through the crushing box 22, a driving device 32 is connected to the outside of the circumference of one end of the hollow shaft 33 far away from the coal grinding cylinder 4, a hot air inlet 10 is mounted at one end of the hollow shaft 33 far away from the coal grinding cylinder 4, the driving device 32 drives the hollow shaft 33 to rotate, the hollow shaft 33 rotates to drive the spiral feeding knife 31 to feed, and materials can enter the coal;

referring to fig. 2 and 3, the driving device 32 includes a motor 321 and a driven gear 323, the driven gear 323 is fixed outside the circumference of the hollow shaft 33, a driving gear 322 is installed at a power output end of the motor 321, and the driving gear 322 is engaged with the driven gear 323, the motor 321 drives the driving gear 322 to rotate, and the driving gear 322 drives the hollow shaft 33 to rotate through the driven gear 323;

referring to fig. 1, 5 and 6, a filtering mechanism 6 is installed inside one side of the coal grinding cylinder 4 far away from the primary crushing mechanism 2, the filtering mechanism 6 is used for filtering out coal with unqualified size, the filtering mechanism 6 comprises an outer installation ring 61, a filtering screen plate 62 is installed inside the outer installation ring 61, the filtering screen plate 62 plays a main filtering role, an inner installation ring 63 is installed in the middle of the filtering screen plate 62, and the circumferential outer wall of the outer installation ring 61 is connected with the lining plate 5 in a welding mode;

referring to fig. 1, 4 and 5, the discharging mechanism 7 includes a discharging pipe 71, one end of the discharging pipe 71 is inserted into the coal grinding barrel 4, and a discharging hopper 72 is fixed at one end of the discharging pipe 71 inserted into the coal grinding barrel 4, and hot air carrying pulverized coal can be discharged through the discharging hopper 72 and the discharging pipe 71;

continuing to refer to fig. 1, 4 and 5, the discharging mechanism 7 is provided with a mesh cleaning mechanism 8, the mesh cleaning mechanism 8 comprises a connecting rod 81 and a cross shaft 82, one end of the cross shaft 82 is fixed inside the discharging pipe 71 through the connecting rod 81, the other end of the cross shaft 82 penetrates through the inner mounting ring 63, the inner mounting ring 63 is rotatably connected with the cross shaft 82 through a bearing, a brush mounting plate 83 is mounted above one end of the cross shaft 82 penetrating through the inner mounting ring 63, one side of the brush mounting plate 83, which is close to the filter screen plate 62, is provided with a brush 84, when the coal grinding drum 4 rotates, the filter mechanism 6 rotates along with the brush mounting plate, the mesh cleaning mechanism 8 is in a non-rotating state, and the brush 84 can brush off the coal dust with the size not reaching the standard on the;

referring to fig. 5, an insertion ring 73 is integrally formed on one side of the discharge hopper 72 close to the filter mechanism 6, a groove ring is formed on the circumference of one side of the outer mounting ring 61 close to the insertion ring 73, the insertion ring 73 is inserted into the groove ring, and when the outer mounting ring 61 rotates along with the coal grinding cylinder 4, the insertion ring 73 relatively rotates in the groove ring, so that the position of the discharge hopper 72 is limited.

The utility model discloses a theory of operation and use flow: when the device is used, the coal briquette is fed from the inside of the feeding hopper 21, the two crushing rollers 23 rotate to crush the coal briquette, the crushed coal briquette is small and falls on the bottom of the crushing box 22, the driving device 32 rotates to drive the hollow shaft 33 to rotate, the hollow shaft 33 rotates to drive the spiral feeding knife 31 to feed the coal briquette, the small coal briquette can enter the inside of the coal grinding cylinder 4, when the coal grinding cylinder 4 rotates, the grinding ball 1 can grind the small coal briquette, meanwhile, hot air enters the inside of the coal grinding cylinder 4 from the hot air inlet 10 through the hollow shaft 33 to blow up the ground coal powder, the coal powder which is ground to reach the standard can pass through the filter screen plate 62 and then enter the discharge hopper 72 and the discharge pipe 71 to discharge, at the moment, the coal powder which does not reach the standard can not pass through the filter screen plate 62, and can be tightly attached to the filter screen plate 62 due to the positive pressure of the hot air, therefore, when the coal grinding drum 4 rotates, the filtering mechanism 6 rotates along with the coal grinding drum, and further the filtering screen plate 62 is in a rotating state, while the discharging mechanism 7 and the screen cleaning mechanism 8 are in a non-rotating state, so that the brush 84 can brush off the coal dust with the size which does not reach the standard on the filtering screen plate 62 in the rotating state.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a coal processing is with multistage coal pulverizer, includes coal grinding cylinder (4) and discharge mechanism (7), its characterized in that: the coal grinding machine is characterized in that a lining plate (5) is arranged on the inner wall of the coal grinding cylinder (4), one side of the coal grinding cylinder (4) is provided with a one-level crushing mechanism (2), a feeding mechanism (3) is arranged below the one-level crushing mechanism (2), one side of the feeding mechanism (3) is provided with a hot air inlet (10), one side of the coal grinding cylinder (4) far away from the one-level crushing mechanism (2) is internally provided with a filtering mechanism (6), the filtering mechanism (6) comprises an outer mounting ring (61), the inner mounting of the outer mounting ring (61) is provided with a filter screen plate (62), the middle mounting of the filter screen plate (62) is provided with an inner mounting ring (63), the discharging mechanism (7) comprises a discharging pipe (71), one end of the discharging pipe (71) is inserted into the inner part of the coal grinding cylinder (4), and one end of the discharging pipe (71) inserted into the inner part of the, be provided with net cleaning mechanism (8) on discharge mechanism (7), net cleaning mechanism (8) are including connecting rod (81) and cross axle (82), the one end of cross axle (82) is passed through connecting rod (81) and is fixed in the inside of discharging pipe (71), and the other end of cross axle (82) passes interior retainer plate (63), and cross axle (82) pass the one end top of interior retainer plate (63) and install brush utensil mounting panel (83), brush utensil mounting panel (83) are close to one side of filtering net board (62) and install brush (84).

2. The multi-stage coal mill for coal processing according to claim 1, wherein: go out hopper (72) and be close to one side integrated into one piece of filter mechanism (6) and have insert circle (73), outer installation circle (61) have been seted up the groove circle on being close to one side circumference of inserting circle (73), and insert that circle (73) insert inside the groove circle.

3. The multi-stage coal mill for coal processing according to claim 1, wherein: one-level crushing mechanism (2) is including broken case (22), and four corners in the below of broken case (22) all are fixed with supporting leg (24), and the top of broken case (22) is provided with feeding hopper (21), and the inside of broken case (22) is close to the position of top and is provided with two crushing roller (23) side by side, feeding mechanism (3) are including hollow shaft (33) and protruding drum (34), and protruding drum (34) set up in broken case (22) and are close to one side below of grinding coal section of thick bamboo (4), link up the inside at protruding drum (34) and broken case (22) about hollow shaft (33), and the circumference outside of hollow shaft (33) is provided with spiral pay-off sword (31).

4. The multi-stage coal mill for coal processing according to claim 3, wherein: one end, far away from the coal grinding cylinder (4), of the hollow shaft (33) penetrates through the crushing box (22), and a driving device (32) is connected to the outer portion of the circumference of one end, far away from the coal grinding cylinder (4), of the hollow shaft (33).

5. The multi-stage coal mill for coal processing according to claim 4, wherein: the driving device (32) comprises a motor (321) and a driven gear (323), the driven gear (323) is fixed outside the circumference of the hollow shaft (33), a driving gear (322) is installed at the power output end of the motor (321), and the driving gear (322) is meshed with the driven gear (323).

6. The multi-stage coal mill for coal processing according to claim 1, wherein: the outer mounting ring (61) is connected with the lining plate (5) through welding, and the inner mounting ring (63) is rotatably connected with the transverse shaft (82) through a bearing.

7. The multi-stage coal mill for coal processing according to claim 1, wherein: and a grinding ball (1) is arranged in the coal grinding cylinder (4).