Tower mill electric ball discharge gate

Abstract

The utility model belongs to tower mill technical field, and a kind of tower mill electric unloading ball door, the utility model includes connecting body, connecting body rear side is equipped with arc plate, connecting body and arc plate middle position is equipped with the square mouth of medium ball passing, arc plate is installed on the square mouth around sealing strip, left and right two side supports are fixed on the support of connecting body two sides, two side supports rear is connected through middle connecting plate, sliding rail is equipped in side support middle position, the slide that can slide is set on sliding rail, and two slide bases are connected by pivot, pivot is also connected the rotating lever of swivel body, the arc turning plate side of swivel body is matched with arc plate and is attached with sealing strip, push rod actuating mechanism is connected on middle connecting plate, the shaft sleeve of push rod actuating mechanism is connected on pivot, and the shaft sleeve is sleeved on pivot, rotating actuator is connected on the base below the side support of both sides, and rotating actuator is connected with pivot end portion through coupling.The utility model can solve the problem of inconvenient manual operation, time-consuming and laborious.

Description

Technical Field

[0001] This utility model belongs to the technical field of tower mills, and specifically relates to an electric unloading gate for a tower mill. Background Technology

[0002] Currently, tower mills are mainly used in fine grinding operations in industries such as mining, cement, and metallurgy, and can replace ball mills as secondary or tertiary grinding equipment. Compared with ball mills, tower mills have the advantages of simple structure, small footprint, high energy utilization, low media ball loss, and uniform product particle size distribution. They have been widely recognized in the industry and have broad market application prospects.

[0003] During operation, the spiral liners of the spiral agitator in a tower mill are easily worn parts, requiring replacement every six months on average by opening the maintenance door. Before opening the maintenance door, most of the media balls inside the grinding cylinder must be removed. Therefore, a small unloading gate is installed at the bottom of the tower mill's maintenance door. Existing unloading gates are all mechanically rotary structures. First, a wrench is used to loosen the tightening screws on both sides of the unloading gate to release the seal. Then, the rotary mechanism is manually rotated 90° to fully expose the discharge port, allowing the media balls to be discharged. After discharging the media balls, the rotary mechanism is again manually rotated to reset it, and then the tightening screws on both sides of the unloading gate are tightened to reseal the gate. This entire process is entirely manual, with low automation, wasting time and labor costs. Utility Model Content

[0004] This invention addresses the aforementioned problems and overcomes the shortcomings of existing technologies by providing an electric ball unloading gate for tower mills. This invention solves the problems of inconvenience, time-consuming and labor-intensive manual operation for unloading balls in tower mills.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] This utility model provides an electric unloading gate for a tower mill, comprising a connecting body. The front of the connecting body has a flange for connecting to the tower mill cylinder. The rear of the connecting body has an arc-shaped plate. A square opening for the medium ball to pass through is located between the connecting body and the arc-shaped plate. A sealing strip is installed around the square opening on the arc-shaped plate. The feature is that two side supports are fixed to supports on both sides of the connecting body, and the two side supports are connected at the rear by a middle connecting plate. A slide rail is located in the middle of the side supports, and a sliding seat is provided on the slide rail. Two sliding seats are connected by a rotating shaft. A rotating rod of the rotating body is also connected to the rotating shaft. One side of the rotating body's arc plate cooperates with the arc plate and is in contact with the sealing strip. A push rod actuator is connected to the middle connecting plate. A bushing is connected to the push rod of the push rod actuator, and the bushing is sleeved on the rotating shaft. Rotary actuators are connected to the bases below the side supports on both sides, and the rotary actuators are connected to the ends of the rotating shaft via couplings.

[0007] Furthermore, the driving end of the push rod actuator is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.

[0008] The beneficial effects of this utility model.

[0009] This utility model replaces the original tightening screws on both sides of the unloading goal with a push rod actuator, which can quickly achieve the pressing and disengagement of the rotating body and the sealing strip; the rotary actuator can completely replace the manual operation of the unloading goal's rotation mechanism, which is highly automated, saves time and effort, and is simple and convenient to control. Attached Figure Description

[0010] To make the technical problems solved, the technical solutions, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model in the closed state.

[0012] Figure 2 This is a schematic diagram of the structure of this utility model in the open state.

[0013] The markings in the diagram are as follows: 1 is the connecting body, 2 is the flange face, 3 is the arc plate, 4 is the square opening, 5 is the sealing strip, 6 is the side bracket, 7 is the support, 8 is the intermediate connecting plate, 9 is the slide rail, 10 is the slide block, 11 is the rotating shaft, 12 is the rotating rod, 13 is the arc rotating plate, 14 is the push rod actuator, 15 is the bushing, 16 is the base, 17 is the rotary actuator, and 18 is the coupling. Detailed Implementation

[0014] As shown in the accompanying drawings, this embodiment provides an electric unloading gate for a tower mill, including a connecting body 1. The front flange 2 of the connecting body 1 is connected to the tower mill cylinder by bolts. An arc-shaped plate 3 is provided on the rear side of the connecting body 1, and a square opening 4 for the medium ball to pass through is provided between the connecting body 1 and the arc-shaped plate 3. A sealing strip 5 is installed on the arc-shaped plate 3 around the square opening 4.

[0015] The left and right side brackets 6 are fixed on the supports 7 on both sides of the connecting body 1. The two side brackets 6 are connected at the rear by the middle connecting plate 8. A slide rail 9 is provided in the middle of the side bracket 6. A sliding block 10 is provided on the slide rail 9 and the two sliding blocks 10 are connected by a rotating shaft 11. The sliding block 10 can slide back and forth on the slide rail 9 of the side bracket 6.

[0016] The rotating shaft 11 is also connected to the rotating rod 12 of the rotating body. One side of the rotating body's arc plate 13 cooperates with the arc plate 3 and is in contact with the sealing strip 5. The opening and closing of the unloading goal is realized by rotating the arc plate 13.

[0017] A push rod actuator 14 is connected to the intermediate connecting plate 8. The drive end of the push rod actuator 14 is an electric cylinder, hydraulic cylinder or pneumatic cylinder. A bushing 15 is connected to the push rod of the push rod actuator 14. The bushing 15 is sleeved on the rotating shaft 11. Rotary actuators 17 are connected to the base 16 below the side brackets 6 on both sides. The rotary actuators 17 are connected to the end of the rotating shaft 11 through a coupling 18.

[0018] The push rod actuator 14 controls the push rod to work. When the push rod retracts, it pulls the rotating shaft 11 through the connection of the bushing 15, thereby driving the rotating body and slide 10 to move towards the electric push rod side, causing the arc plate 13 of the rotating body to separate from the sealing strip 5. It also controls the rotary actuator 17 to work, causing the rotating body to rotate counterclockwise upward by 90° through the connection of the coupling 18, at which point the unloading goal is fully opened. When the unloading goal needs to be closed, the rotary actuator 17 is controlled to work, causing the rotating body to rotate clockwise downward by 90° through the connection of the coupling 18. Then, the electric push rod is controlled to work, causing the push rod to extend outward, pushing the rotating shaft 11 through the connection of the bushing 15, thereby driving the rotating body and slide 10 to move towards the connecting body 1, causing the arc plate 13 of the rotating body to press against the sealing strip 5 on the connecting body 1, sealing the unloading goal.

[0019] The specific operating method is as follows:

[0020] When the electric unloading gate needs to be opened, first control the push rod to retract. Through the connection of the bushing 15, pull the rotating shaft 11, the rotating body and the two slides 10 to move towards the push rod actuator 14 until the arc plate 13 of the rotating body is completely separated from the sealing strip 5. Then control the rotary actuator 17 to work. Through the connection of the coupling 18, make the rotating body slowly rotate 90° counterclockwise upward. At this time, the electric unloading gate is fully opened, and the medium ball flows out from the square opening 4 in the middle of the connecting body 1, completing the unloading of the tower mill ball.

[0021] When it is necessary to close the electric unloading goal, first control the rotary actuator 17 to work. Through the connection of the coupling 18, the rotating body slowly rotates 90° clockwise downwards. Then control the push rod to extend. Through the connection of the bushing 15, push the rotating shaft 11, the rotating body and the two slides 10 to move towards the connecting body 1 until the arc plate 13 of the rotating body and the sealing strip 5 are completely attached and pressed together, so that the electric unloading goal is sealed.

[0022] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.

Claims

1. An electric unloading gate for a tower mill, comprising a connecting body (1), wherein the front side of the connecting body (1) is provided with a flange face (2) for connecting with the tower mill cylinder, the rear side of the connecting body (1) is provided with an arc-shaped plate (3), a square opening (4) for the passage of a medium ball is provided between the connecting body (1) and the arc-shaped plate (3), and a sealing strip (5) is installed on the arc-shaped plate (3) around the square opening (4), characterized in that, The left and right side brackets (6) are fixed on the supports (7) on both sides of the connecting body (1). The two side brackets (6) are connected by a middle connecting plate (8) at the rear. A slide rail (9) is provided in the middle of the side bracket (6). A sliding seat (10) is provided on the slide rail (9). The two sliding seats (10) are connected by a rotating shaft (11). The rotating shaft (11) is also connected to the rotating rod (12) of the rotating body. One side of the arc plate (13) of the rotating body cooperates with the arc plate (3) and is in contact with the sealing strip (5). A push rod actuator (14) is connected on the middle connecting plate (8). A bushing (15) is connected to the push rod of the push rod actuator (14). The bushing (15) is sleeved on the rotating shaft (11). A rotary actuator (17) is connected to the base (16) below the side brackets (6) on both sides. The rotary actuator (17) is connected to the end of the rotating shaft (11) through a coupling (18).

2. The electric unloading goal for a tower mill according to claim 1, characterized in that, The drive end of the push rod actuator (14) is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.

Images