CN209866292U - Slay grinds spiral feeding unit immediately - Google Patents

Slay grinds spiral feeding unit immediately Download PDF

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Publication number
CN209866292U
CN209866292U CN201920193701.XU CN201920193701U CN209866292U CN 209866292 U CN209866292 U CN 209866292U CN 201920193701 U CN201920193701 U CN 201920193701U CN 209866292 U CN209866292 U CN 209866292U
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China
Prior art keywords
mill
spiral
vertical roller
feeding
roller mill
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Application number
CN201920193701.XU
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Chinese (zh)
Inventor
白巍
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Hubei Tonghui Industrial Integration Technology Co Ltd
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Hubei Tonghui Industrial Integration Technology Co Ltd
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Abstract

The utility model provides a slay grinds spiral feeding device immediately, includes vertical roller mill (1), and it still is equipped with spiral feeding mechanism, spiral feeding mechanism includes outer support (2), inner support (3), screw groove (4), screw axis (5), motor (6), feed inlet (7), discharge gate (8), helical blade (9) and closing plate (10). The utility model has the advantages that: 1. by using the screw conveyor for feeding, the air locking requirement can be met, material blockage can be avoided, the feeding is uniform and stable, the material blockage condition is solved, and the operation of the mill is stable; 2. the pitch of the helical blade is gradually reduced, so that the water-containing material is prevented from being blocked near the discharge hole; 3. a grease filling port of a spiral conveyor in the mill is guided out of the mill through a grease filling pipe, and the spiral conveyor is maintained.

Description

Slay grinds spiral feeding unit immediately
Technical Field
The utility model belongs to vertical roller mill field, concretely relates to slay grinds spiral material feeding unit immediately.
Background
The vertical roller mill is a vertical mill for short, is used for grinding and processing cement raw materials, cement clinker, slag and coal cinder, and has the characteristics of simple structure and low manufacturing and using cost. A motor of the vertical roller mill drives a grinding disc to rotate through a speed reducer, materials fall in the center of the grinding disc from a feeding hole through an air locking feeder, and meanwhile hot air enters the mill from an air inlet. The material moves to the edge of the grinding disc under the action of centrifugal force along with the rotation of the grinding disc, is ground by the grinding roller when passing through the annular groove on the grinding disc, is carried by the high-speed airflow of the air ring at the edge of the grinding disc after being ground, large particles directly fall onto the grinding disc for regrinding, the material in the airflow falls onto the grinding disc for regrinding under the action of the rotating rotor when passing through the upper separator, and qualified fine powder is discharged out of the grinding disc along with the airflow and is collected by the dust collecting device, so that the product is obtained.
When the vertical roller mill is in feeding, the material directly enters into the middle shell of the mill through the chute after passing through the air locking valve, but because certain moisture is contained in the material, the material is blocked at the chute, the material blocking condition and the mill feeding is unstable, manual dredging needs to be carried out every day in the production process, time and labor are wasted, and the production efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that a feeding pipeline is easy to block during feeding of a vertical roller mill, the slag vertical mill spiral feeding device is designed, and the technical scheme is as follows: a spiral feeding device for slag vertical mill comprises a vertical roller mill and is characterized by also comprising a spiral feeding mechanism, wherein the spiral feeding mechanism comprises an outer support, an inner support, a spiral mill groove, a spiral shaft, a motor, a feeding hole, a discharging hole, spiral blades and a sealing plate, the outer support is arranged on a shell of the vertical roller mill, the inner support is arranged on two sides of the inner wall of the middle shell of the vertical roller mill, one end of the spiral mill groove is positioned in the middle shell of the vertical roller mill and extends out of the vertical roller mill, two ends of the spiral shaft are respectively arranged in the spiral mill groove through bearing seats, the bearing seats at two ends of the spiral mill groove respectively support the spiral shaft through the outer support and the inner support, one end of the spiral shaft is connected with the motor in a transmission way through a coupler, the upper end and the lower end of the spiral mill groove are respectively provided with the feeding hole and the discharging hole, the spiral shaft is provided with spiral blades, and the sealing plate is positioned at the joint of the spiral groove and the vertical roller mill and welded on the middle shell of the vertical roller mill.
Preferably, the pitch of the helical blade is gradually reduced from the feed inlet to the discharge outlet.
Preferably, the vertical roller mill also comprises a grease filling pipe, one end of the grease filling pipe is connected to the bearing seat of the screw mill groove, and the other end of the grease filling pipe extends out of the vertical roller mill.
The utility model has the advantages that: 1. by using the screw conveyor for feeding, the air locking requirement can be met, material blockage can be avoided, the feeding is uniform and stable, the material blockage condition is solved, and the operation of the mill is stable; 2. the pitch of the helical blade is gradually reduced, so that the water-containing material is prevented from being blocked near the discharge hole; 3. a grease filling port of a spiral conveyor in the mill is guided out of the mill through a grease filling pipe, and the spiral conveyor is maintained.
Drawings
FIG. 1 is a schematic view of the installation of the present invention;
fig. 2 is a schematic structural view of the screw conveyor of the present invention.
Detailed Description
As shown in fig. 1-2, a slag vertical mill spiral feeding device comprises a vertical roller mill 1, and is further provided with a spiral feeding mechanism, wherein the spiral feeding mechanism comprises an outer support 2, an inner support 3, a spiral mill groove 4, a spiral shaft 5, a motor 6, a feeding port 7, a discharging port 8, a spiral blade 9 and a sealing plate 10, the outer support 2 is installed on the shell of the vertical roller mill 1, the inner support 3 is installed on two sides of the inner wall of the middle shell of the vertical roller mill 1, one end of the spiral mill groove 4 is located in the middle shell of the vertical roller mill 1 and extends out of the vertical roller mill 1, two ends of the spiral shaft 5 are respectively installed in the spiral mill groove 4 through bearing seats, the bearing seats at two ends of the spiral mill groove 4 are respectively supported by the outer support 2 and the inner support 3, one end of the spiral shaft 5 is in transmission connection with the motor 6 through a coupler, the upper end and the lower end of the spiral, the feed inlet 7 is positioned outside the vertical roller mill 1, the discharge outlet 8 is positioned in the middle shell of the vertical roller mill 1, the spiral shaft 5 is provided with a spiral blade 9, and the sealing plate 10 is positioned at the joint of the spiral mill groove 4 and the vertical roller mill 1 and welded on the middle shell of the vertical roller mill 1.
The working process is as follows: at first, carry slay raw materials in screw conveyer's feed inlet 7, under the helical blade 9 effect, the material enters into vertical roller mill 1 from screw groove 4, helical blade 9 is at the uniform velocity rotatory, send into vertical roller mill with slay is even stable in, the problem of putty when solving the feeding, the mill operates steadily, vertical roller mill is at grinding the during operation, also carry out whirlwind selection powder work simultaneously, consequently, the leakproofness of mill when guaranteeing the feeding, through adopting screw conveyer pay-off, helical blade and material form sealedly, can reach the purpose of lock wind, it is equipped with closing plate 10 additional at screw groove 4 and vertical roller mill 1's junction, it is firm to weld the seam crossing, prevent the air leakage.
The screw pitch of the helical blade 9 is gradually reduced from the feed inlet 7 to the discharge outlet 8, so that the thrust of the screw conveyor at the discharge outlet is larger, and the slag is not easy to block under the condition of larger water content.
Because the part of the screw conveyer is positioned in the mill and can not be filled with lubricating grease, a grease filling pipe 11 is arranged, one end of the grease filling pipe 11 is connected to a bearing seat of the screw conveyer groove 4, the other end of the grease filling pipe extends out of the vertical roller mill 1, a grease filling point is led out of the mill through a pipeline, grease is directly filled through the grease filling pipe 11 when needed, and the screw conveyer is convenient to maintain.

Claims (3)

1. The slag vertical mill spiral feeding device comprises a vertical roller mill (1) and is characterized by also comprising a spiral feeding mechanism, wherein the spiral feeding mechanism comprises an outer support (2), an inner support (3), a spiral mill groove (4), a spiral shaft (5), a motor (6), a feeding hole (7), a discharging hole (8), a spiral blade (9) and a sealing plate (10), the outer support (2) is arranged on the shell of the vertical roller mill (1), the inner support (3) is arranged on two sides of the inner wall of the middle shell of the vertical roller mill (1), one end of the spiral mill groove (4) is positioned in the middle shell of the vertical roller mill (1) and extends out of the vertical roller mill (1), two ends of the spiral shaft (5) are respectively arranged in the spiral mill groove (4) through bearing seats, the bearing seats at two ends of the spiral mill groove (4) are respectively supported through the outer support (2) and the inner support (3), screw axis (5) one end is passed through the shaft coupling and is linked to each other with motor (6) transmission, and screw groove (4) upper end and lower extreme are equipped with feed inlet (7) and discharge gate (8) respectively, and feed inlet (7) are located outside vertical roller mill (1), and discharge gate (8) are located the mesochite of vertical roller mill (1), are equipped with helical blade (9) on screw axis (5), closing plate (10) are located the junction of screw groove (4) and vertical roller mill (1) to the welding is on the mesochite of vertical roller mill (1).
2. A slag vertical mill screw feeder according to claim 1, characterized in that the pitch of the screw blade (9) is gradually reduced from the feed port (7) to the discharge port (8).
3. A spiral feeding device for slag vertical mill according to claim 1, characterized in that it further comprises a grease filling pipe (11), one end of the grease filling pipe (11) is connected to the bearing seat of the spiral mill groove (4), and the other end extends out of the vertical roller mill (1).
CN201920193701.XU 2019-02-13 2019-02-13 Slay grinds spiral feeding unit immediately Active CN209866292U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920193701.XU CN209866292U (en) 2019-02-13 2019-02-13 Slay grinds spiral feeding unit immediately

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920193701.XU CN209866292U (en) 2019-02-13 2019-02-13 Slay grinds spiral feeding unit immediately

Publications (1)

Publication Number Publication Date
CN209866292U true CN209866292U (en) 2019-12-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920193701.XU Active CN209866292U (en) 2019-02-13 2019-02-13 Slay grinds spiral feeding unit immediately

Country Status (1)

Country Link
CN (1) CN209866292U (en)

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