A feed mechanism for a tube mill

Abstract

The utility model provides a kind of feeding mechanism of barrel type coal mill, belongs to coal mill field. Including motor;The output shaft of the motor is fixedly connected with the input end of gearbox;The output end of the gearbox is fixedly connected with the rotating shaft;The rotating shaft is connected in the shell of barrel type by bearing and is arranged transversely, and the outer circular surface of rotating shaft is fixedly connected with spiral plate in shell;The side upper end of shell is equipped with feed inlet, and the outer wall of the feed inlet of shell is fixedly connected with conical barrel;The side lower end of shell is equipped with multiple discharge port I, and the side of the end of shell away from motor is also equipped with discharge port II.The utility model not only can promote large coal block to the end of shell away from motor and concentrate processing, avoid to shield discharge port I and affect to discharge, but also can push out coal block with larger volume from shell.

Description

Technical Field

[0001] This utility model relates to a feeding mechanism for a cylindrical coal mill, belonging to the field of coal mills. Background Technology

[0002] A coal mill is a machine that crushes and grinds coal into pulverized coal. However, during the feeding process, there may be large pieces of coal in the raw material. Directly feeding these pieces of coal into the coal mill will reduce the grinding efficiency. The feeding mechanism of existing coal mills on the market does not have the function of pushing out or crushing large pieces of coal, so improvements have been made. Summary of the Invention

[0003] The purpose of this utility model is to solve the above-mentioned problems existing in the background art and to provide a feeding mechanism for a cylindrical coal mill.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0005] A feeding mechanism for a cylindrical coal mill includes a motor; the output shaft of the motor is fixedly connected to the input end of a gearbox; the output end of the gearbox is fixedly connected to a rotating shaft; the rotating shaft is connected by bearings to a horizontally arranged cylindrical outer shell, and a spiral plate located inside the outer shell is fixedly connected to the outer circumference of the rotating shaft; a feed inlet is provided at the upper side of the outer shell, and a conical barrel is fixedly connected to the outer wall at the feed inlet of the outer shell; multiple discharge ports I are provided at the lower side of the outer shell, and a discharge port II is also provided on the side of the outer shell away from the motor.

[0006] Furthermore, the discharge port II is located at the lower middle position on the side of the outer casing.

[0007] Furthermore, the projected area of ​​discharge port II is larger than that of discharge port I.

[0008] Furthermore, the outer circular surface of the outer shell is also fixedly connected to a pipe communicating with the discharge port II.

[0009] Furthermore, a rotating rod is fixedly connected to the outer circumference of the shaft near the discharge port II.

[0010] Furthermore, the rotating rod is perpendicular to the center line of the shaft.

[0011] Furthermore, the end of the rotating rod away from the shaft contacts the inner wall of the outer casing.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this new model can not only push large coal blocks to the end of the outer shell away from the motor for centralized processing, avoiding blocking the discharge port I and affecting the feeding, but also push larger coal blocks out of the outer shell. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the feeding mechanism of a cylindrical coal mill according to this utility model;

[0014] Figure 2 This is a cross-sectional view of the outer casing of the feeding mechanism of a cylindrical coal mill according to this utility model;

[0015] Figure 3 yes Figure 2 A cross-sectional view along the AA direction;

[0016] Figure 4 This is a schematic diagram showing the position of the baffle in the feeding mechanism of a cylindrical coal mill according to this utility model. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0018] Specific implementation method one: as follows Figure 1-4 As shown, this embodiment describes a feeding mechanism for a cylindrical coal mill, including a motor 1; the output shaft of the motor 1 is fixedly connected to the input end of a gearbox 2; the output end of the gearbox 2 is fixedly connected to a rotating shaft 10; the rotating shaft 10 is connected to a horizontally arranged cylindrical outer shell 3 via bearings, and a spiral plate 6 located inside the outer shell 3 is fixedly connected to the outer circumference of the rotating shaft 10; a feed inlet 5 is provided at the upper side of the outer shell 3, and a conical barrel 4 is fixedly connected to the outer wall of the feed inlet 5; multiple discharge ports I9 are provided at the lower side of the outer shell 3, and a discharge port II8 is also provided on the side of the outer shell 3 away from the motor 1. The spiral plate 6 pushes the coal block 12 to move. During the movement, some of the coal block 12 can be discharged into the coal mill through the discharge port I9. The remaining large coal blocks 12 move with the spiral plate 6 to the other end of the outer shell 3 and are squeezed by the spiral plate 6 and the side wall of the outer shell 3, causing them to break into smaller pieces and be discharged.

[0019] The length of the spiral plate 6 extends from one end of the housing 3 near the motor 1 to the other end of the housing 3.

[0020] The discharge port II8 is located in the lower middle position on the side of the outer casing 3. This allows large coal chunks 12 to move with the rotating rod 7 (i.e.,... Figure 3 In the state shown, the rotating rod 7 drives the coal block 12 to rotate counterclockwise. Since the discharge port II8 is located in the middle and lower position, the large coal block 12 can be discharged from the discharge port II8 under the action of gravity.

[0021] The projected area of ​​discharge port II8 is larger than that of discharge port I9. Discharge port II8 is used to discharge large pieces of coal 12.

[0022] The outer surface of the outer shell 3 is also fixedly connected to a pipe 11 that communicates with the discharge port II8.

[0023] A rotating rod 7 is fixedly connected to the outer circumference of the shaft 10 near the discharge port II8. The shaft 10 drives the rotating rod 7 to rotate, thereby pushing the large coal block 12 to rotate.

[0024] The rotating rod 7 is perpendicular to the center line of the shaft 10.

[0025] The end of the rotating rod 7 away from the shaft 10 is in contact with the inner wall of the outer casing 3.

[0026] The working principle of this utility model is as follows: When using this device, coal lumps 12 are fed from the conical barrel 4 into the outer shell 3, and the motor 1 is started. The motor 1 drives the shaft 10 to rotate through the gearbox 2. The shaft 10 drives the spiral plate 6 to rotate. During the rotation of the spiral plate 6, the coal lumps 12 inside the outer shell 3 are pushed to the end of the outer shell 3 away from the motor 1. During the movement of the coal lumps 12, smaller coal lumps 12 will fall directly into the coal mill, while larger coal lumps 12 will be continuously moved to the right end of the outer shell 3 by the spiral plate 6. Figure 1 (in the direction shown) until part of it moves to the end of the spiral plate 6, the spiral plate 6 will continuously push the coal block 12 against the inner wall of the outer shell 3 and crush the coal block 12;

[0027] When the large coal chunk 12 moves to the end of the spiral plate 6, it will come into contact with the rotating rod 7. If its length is greater than the distance between the two rotating rods 7 (e.g., Figure 1 The length of the coal block 12 on the right side will move along with the rotating rod 7. When it reaches the position of the discharge port II 8, it will be discharged under gravity. If its length is less than the distance between the two rotating rods 7 (e.g., Figure 1 (The length of the coal block 12 on the left) The coal block 12 can only contact one of the rotating rods 7, so that when the rotating rod 7 moves, it pushes the coal block 12 to change position, but cannot move with the rotating rod 7. After changing position, the coal block 12 can effectively avoid blocking the discharge port I9 and avoid accumulation.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding mechanism for a cylindrical coal mill, characterized in that: Includes a motor (1); the output shaft of the motor (1) is fixedly connected to the input end of the gearbox (2); the output end of the gearbox (2) is fixedly connected to the rotating shaft (10); the rotating shaft (10) is connected to the cylindrical outer shell (3) by bearings, and a spiral plate (6) located inside the outer shell (3) is fixedly connected to the outer circumference of the rotating shaft (10); a feed inlet (5) is provided at the upper side of the outer shell (3), and a conical barrel (4) is fixedly connected to the outer wall of the feed inlet (5) of the outer shell (3); multiple discharge ports I (9) are provided at the lower side of the outer shell (3), and a discharge port II (8) is also provided on the side of the outer shell (3) away from the motor (1).

2. The feeding mechanism of a cylindrical coal mill according to claim 1, characterized in that: The discharge port II (8) is located in the lower middle part of the side of the outer shell (3).

3. The feeding mechanism of a cylindrical coal mill according to claim 1, characterized in that: The projected area of ​​the discharge port II (8) is greater than that of the projected area of ​​the discharge port I (9).

4. The feeding mechanism of a cylindrical coal mill according to claim 1, characterized in that: The outer surface of the outer shell (3) is also fixedly connected to a pipe (11) that communicates with the discharge port II (8).

5. The feeding mechanism of a cylindrical coal mill according to claim 1, characterized in that: A rotating rod (7) is fixedly connected to the outer circular surface of the rotating shaft (10) near the discharge port II (8).

6. The feeding mechanism of a cylindrical coal mill according to claim 5, characterized in that: The rotating rod (7) is perpendicular to the center line of the rotating shaft (10).

7. The feeding mechanism of a cylindrical coal mill according to claim 6, characterized in that: The end of the rotating rod (7) away from the rotating shaft (10) is in contact with the inner wall of the outer casing (3).

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