CN217288676U

CN217288676U - Wind sweeping type high heat exchange rate raw coal crushing and grinding device

Info

Publication number: CN217288676U
Application number: CN202220254309.3U
Authority: CN
Inventors: 胡国正; 张苏玉
Original assignee: Anhui Digang Conch Cement Co Ltd
Current assignee: Anhui Digang Conch Cement Co Ltd
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-08-26
Anticipated expiration: 2032-02-08

Abstract

The utility model discloses a wind formula high heat exchange rate raw coal is smashed, grinder, including inlet pipe, stop collar, grinding cover, coal grinding jar, spacing ring, row's material pipe and lapping plate, coal grinding jar both ends symmetry is provided with inlet pipe and row's material pipe, inlet pipe one end sets up the grinding cover, the grinding cover is located inside the coal grinding jar, the silo has been seted up to grinding cover inside, silo internal weld has the abrasive brick, coal grinding jar one end inner wall is provided with the lapping plate, the laminating of coal grinding jar inner wall has the welt, the spacing ring has all been welded to coal grinding jar both ends outer wall, the inlet pipe has the spacing ring with arrange the outside all welding of material pipe. The utility model discloses the accessible drops into the raw coal and grinds the cover in, and the relative rotation between cover and the coal grinding jar is ground in the cooperation, and the raw coal is after passing through the silo, grinds the relative rotation of piece cooperation grinding board, smashes and grinds the raw coal piece, effectively reduces the volume of cubic raw coal, can improve the effect and the fineness that the coal ground.

Description

Wind sweeping type high heat exchange rate raw coal crushing and grinding device

Technical Field

The utility model relates to a wind sweeps coal grinding equipment technical field, specifically is a wind formula high heat exchange rate raw coal is smashed, grinder.

Background

The air swept coal mill is the main equipment of coal powder production system in cement plant and thermal power plant, and is used for drying and grinding coal powder. The equipment mainly comprises a feeding device, a main bearing, a rotary part, a transmission device, a discharging device, a high-pressure starting device and a lubricating system. The raw materials are loaded into the mill by feeding equipment, hot air enters the mill by an air inlet pipe, coal and the hot air exchange heat in the mill along with the rotation of a mill cylinder, the coal is crushed and ground in the mill, and fine powder is taken out of the mill by the hot air in the mill through a discharging device while the coal is ground.

In carrying out the process of grinding to the raw coal, the raw coal passes through the inlet pipe and gets into in the coal mill equipment, the coal mill equipment is rotatory, it smashes and grinds the raw coal to drive the grinding media, but can be mingled with the great coal cinder of volume in the raw coal, at traditional coal mill in-process, the raw coal cinder need be through long-time grinding, just can thoroughly smash, therefore, the cycle of coal mill has been increased, lack and carry out preliminary smashing and the mechanism of grinding to the raw coal, the efficiency of coal mill has been reduced, and the fineness of grinding can not be ensured.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind formula high heat exchange rate raw coal is smashed, grinder to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a wind formula high heat exchange rate raw coal is smashed, grinder, includes inlet pipe, stop collar, grinding cover, coal grinding jar, spacing ring, row's material pipe and lapping plate, coal grinding jar both ends symmetry is provided with the inlet pipe and arranges the material pipe, inlet pipe one end sets up the grinding cover, the grinding cover is located inside the coal grinding jar, the silo has been seted up to grinding cover inside, silo internal weld has the abrasive brick that is circular array and distributes, coal grinding jar one end inner wall is provided with the lapping plate, the laminating of coal grinding jar inner wall has the welt that is circular array and distributes, the spacing ring has all been welded to coal grinding jar both ends outer wall, the inlet pipe has all welded the stop collar with row's material outside, the spacing ring rotates and pegs graft inside the stop collar.

Preferably, the grinding plate is sleeved outside the grinding sleeve and is matched with the grinding block.

Preferably, the grinding plate is flush with the inner wall of the lining plate.

Preferably, a toothed ring is welded on the outer wall of one end of the coal grinding tank.

Preferably, bearings are embedded between the limiting sleeve and the limiting ring.

Preferably, the lower surfaces of the feeding pipe and the discharging pipe are welded on the fixed seat.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in the in-service use in-process, the raw coal passes through the inlet pipe and gets into the grinding cover, the raw coal is piled up in grinding cover inside bottom, raw coal accessible silo to lapping plate surface, the relative rotation between cooperation grinding cover and the coal grinding jar, it rotates to drive the lapping plate relative grinding piece, the raw coal piece in the silo is smashed and is ground through grinding piece and lapping plate relative rotation, can carry out preliminary smashing and grinding to the raw coal, effectively reduce the volume of raw coal piece, can transmit to the welt surface through the kibbling raw coal of grinding piece and lapping plate, the grinding medium in the cooperation coal grinding jar, carry out further smashing and grinding to the raw coal, the kibbling cycle of raw coal has effectively been shortened and the fineness that the guarantee raw coal ground, do benefit to in-service use more.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the grinding sleeve of the present invention;

FIG. 3 is a schematic side sectional view of the polishing sleeve of the present invention;

fig. 4 is a schematic view of the cross-sectional enlarged structure of the grinding plate of the present invention.

In the figure: 1. a feeding pipe; 2. a position limiting sleeve; 3. a toothed ring; 4. grinding the sleeve; 5. a coal grinding tank; 6. a liner plate; 7. a limiting ring; 8. a discharge pipe; 9. a fixed seat; 10. a bearing; 11. grinding blocks; 12. a grinding plate; 13. a trough.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a wind formula high heat exchange rate raw coal is smashed, grinder, including inlet pipe 1, stop collar 2, grind cover 4, grind coal jar 5, spacing ring 7, arrange row's material pipe 8 and

lapping plate

12, 5 both ends symmetries of coal jar are provided with inlet pipe 1 and row's material pipe 8, inlet pipe 1 all welds in fixing base 9 with row's material pipe 8 lower surface, 1 one end of inlet pipe sets up grinds cover 4, it is located grind coal jar 5 inside to grind cover 4, it adopts the toper design to grind cover 4 and deviate from 1 one end of inlet pipe, prevented that grinding medium from getting into the inside effect of grinding cover 4 has been played, and ensured hot-blast effect of 5 inside by inlet pipe 1 entering grind coal jar.

A trough 13 is arranged in the grinding sleeve 4, grinding blocks 11 distributed in a circular array are welded in the trough 13, a grinding plate 12 is arranged on the inner wall of one end of the coal grinding tank 5, the grinding plate 12 is sleeved outside the grinding sleeve 4, the grinding plate 12 is matched with the grinding blocks 11, a lining plate 6 distributed in a circular array is attached to the inner wall of the coal grinding tank 5, the grinding plate 12 is flush with the inner wall of the lining plate 6, in the actual use process, raw coal enters the grinding sleeve 4 through a feeding pipe 1, the raw coal is accumulated at the bottom end inside the grinding sleeve 4, the raw coal can pass through the trough 13 to the surface of the grinding plate 12, the grinding plate 12 is driven to rotate relative to the grinding blocks 11 by matching with the relative rotation between the grinding sleeve 4 and the coal grinding tank 5, the raw coal blocks in the trough 13 are crushed and ground by the relative rotation between the grinding blocks 11 and the grinding plate 12, the raw coal can be primarily crushed and ground, and the volume of the raw coal blocks is effectively reduced, the kibbling raw coal of process grinding block 11 and grinding plate 12 can be transmitted to 6 surfaces of welt, and the grinding medium in the cooperation coal grinding jar 5 carries out further smashing and grinding to the raw coal, has effectively shortened the kibbling cycle of raw coal and has ensured the fineness that the raw coal ground, does benefit to practical use more, grinds the raw coal of accomplishing, and the hot-air that accessible inlet pipe 1 let in drives the raw coal powder and passes through row material pipe 8, realizes the discharge of raw coal powder.

The outer wall of one end of the coal grinding tank 5 is welded with a toothed ring 3, and the toothed ring 3 can be driven by a motor to realize the rotation of the coal grinding tank 5. The outer wall of 5 both ends of coal grinding tank all welds spacing ring 7, inlet pipe 1 all welds spacing sleeve 2 with row material 8 outside, spacing ring 7 rotates to peg graft inside spacing sleeve 2, all imbeds between spacing sleeve 2 and the spacing ring 7 and installs bearing 10, spacing sleeve 2 mutually supports with spacing ring 7, can carry on spacingly to inlet pipe 1 and row material 8 relative coal grinding tank 5 to bearing 10 can be convenient for coal grinding tank 5 relative inlet pipe 1, row material 8 produces relative rotation.

The working principle is as follows: in the actual use process, raw coal enters the grinding sleeve 4 through the feeding pipe 1, the raw coal is accumulated at the bottom end inside the grinding sleeve 4, the raw coal can pass through the chute 13 to the surface of the grinding plate 12 and is matched with the relative rotation between the grinding sleeve 4 and the coal grinding tank 5 to drive the grinding plate 12 to rotate relative to the grinding block 11, the raw coal block in the chute 13 is crushed and ground through the relative rotation between the grinding block 11 and the grinding plate 12, the raw coal can be preliminarily crushed and ground, the volume of the raw coal block is effectively reduced, the raw coal crushed by the grinding block 11 and the grinding plate 12 can be transmitted to the surface of the lining plate 6 and is matched with a grinding medium in the coal grinding tank 5 to further crush and grind the raw coal, the crushing period of the raw coal and the fineness of grinding the raw coal are effectively shortened, the raw coal can be more beneficial to actual use, the ground raw coal can be ground, hot air can be introduced through the feeding pipe 1 to drive the raw coal powder to pass through the discharging pipe 8, the discharge of the raw coal powder is realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a wind formula high heat exchange rate raw coal is smashed, grinder, includes inlet pipe (1), stop collar (2), grinds cover (4), grinds coal jar (5), spacing ring (7), arranges material pipe (8) and lapping plate (12), its characterized in that: coal grinding tank (5) both ends symmetry is provided with inlet pipe (1) and row material pipe (8), inlet pipe (1) one end sets up grinds cover (4), it is inside that grinding cover (4) are located coal grinding tank (5), grind inside silo (13) of having seted up of cover (4), silo (13) internal weld has grinding block (11) that are circular array and distribute, coal grinding tank (5) one end inner wall is provided with lapping plate (12), coal grinding tank (5) inner wall laminating has welt (6) that are circular array and distribute, coal grinding tank (5) both ends outer wall all welds spacing ring (7), inlet pipe (1) and row material pipe (8) outside all weld have spacing sleeve (2), spacing ring (7) are rotated and are pegged graft in spacing sleeve (2) inside.

2. The air swept type raw coal crushing and grinding device with high heat exchange rate as claimed in claim 1, wherein: the grinding plate (12) is sleeved outside the grinding sleeve (4), and the grinding plate (12) is matched with the grinding block (11).

3. The air swept type raw coal crushing and grinding device with high heat exchange rate as claimed in claim 1, wherein: the grinding plate (12) is flush with the inner wall of the lining plate (6).

4. The air swept type raw coal crushing and grinding device with high heat exchange rate as claimed in claim 1, wherein: and a toothed ring (3) is welded on the outer wall of one end of the coal grinding tank (5).

5. The air swept type raw coal crushing and grinding device with high heat exchange rate as claimed in claim 1, wherein: and bearings (10) are embedded between the limiting sleeve (2) and the limiting ring (7).

6. The air-swept type raw coal crushing and grinding device with high heat exchange rate as claimed in claim 1, wherein: the lower surfaces of the feeding pipe (1) and the discharging pipe (8) are welded on the fixed seat (9).