A discharge device for a continuous ball mill

Abstract

This invention discloses a discharge device for a continuous ball mill, comprising a discharge pipe. The device is characterized by: a connecting frame on the outer side of the discharge pipe; multiple sets of connecting bolts on the outer side of the connecting frame; a baffle on one side of the top of the discharge pipe; a storage bin on one side of the discharge pipe; a screening bin on the top of the storage bin; and a discharge port at the bottom of the screening bin. Through the cooperation of the discharge pipe, screening bin, impact plate, bottom plate, fixing frame, through groove, mounting rod, and torsion spring, this invention can screen the falling material after grinding, allowing material of normal particle size to be discharged normally, while larger particles remain inside the screening bin. After the screening bin rotates to a designated position, these larger particles return to the ball mill for re-grinding, thereby improving the fineness of the material and eliminating the need for subsequent re-grinding.

Description

Technical Field

[0001] This invention relates to the field of ball mill technology, specifically to a discharge device for a continuous ball mill. Background Technology

[0002] Ball mills are key equipment for further pulverizing materials after they have been crushed. This type of grinding mill has a certain number of steel balls inside its cylinder as grinding media, and the ground material is discharged from the outlet during the grinding process.

[0003] A discharge device for a continuous ball mill, with existing patent publication number "CN216149923U", includes a flow guiding mechanism and a screening mechanism. The flow guiding mechanism includes a flow guiding cylinder and several flow guiding blades. The diameter of the flow guiding cylinder gradually decreases from one end to the other, and the flow guiding blades are arranged on the outer circumference of the flow guiding cylinder. This invention, through the screening mechanism, allows the material being ground in the ball mill to undergo initial screening by the outer screen plate, followed by secondary screening by the inner screen plate. This double screening ensures that the ground material is of uniform size when passing through the flow guiding mechanism. The combined action of the flow guiding cylinder and the flow guiding blades, when the ball mill rotates, drives the flow guiding blades to rotate, creating a negative pressure at the discharge end of the ball mill. This negative pressure draws the material inside the flow guiding cylinder into the discharge end of the ball mill, preventing accumulation at the discharge end.

[0004] During the rotation of a ball mill, the rotation speed is relatively slow. However, the device requires a relatively fast rotation speed to generate a certain negative pressure suction to reach the guide vanes. Consequently, the guide vanes cannot effectively conduct the flow. When the discharge port is blocked, the device cannot effectively conduct the flow, thus affecting the discharge speed. Ball mills discharge material using centrifugal force. If an internal screen plate is used for screening, large particles tend to accumulate at the internal screen plate, causing blockage and affecting the normal discharge of the ball mill. Summary of the Invention

[0005] The purpose of this invention is to provide a discharge device and method for a continuous ball mill to solve the related problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a discharge device for a continuous ball mill, comprising a discharge pipe, a connecting frame on the outer side of the discharge pipe, and multiple sets of connecting bolts on the outer side of the connecting frame for easy installation of the discharge pipe. The connecting bolts can be placed on an external support base, facilitating rotation of the discharge pipe and connecting bolts by the ball mill. A baffle is provided on one side of the top of the discharge pipe to block material entering the storage hopper, preventing backflow and facilitating discharge from the discharge port to the outside. A storage hopper is provided on one side of the discharge pipe, and a screening bin is provided on the top of the storage hopper to screen the material, allowing the ground material to be screened out while larger particles are removed. The particles are blocked inside the screening bin for easy re-grinding. The bottom of the screening bin has a discharge port, and the storage bin contains an agitator. One side of the discharge pipe has a side plate, and the bottom of one side of the side plate has a base plate. The top of the base plate has a mounting frame, and the mounting frame contains an installation rod. A torsion spring is located in the middle of the outer side of the installation rod, and a collision plate is located between the two outer sides of the installation rod. During the rotation of the discharge pipe driven by the ball mill, the screening bin impacts the collision plate after rotating to a certain position, causing vibration inside the screening bin and allowing the material to fall quickly out, improving screening efficiency without affecting the rotation of the discharge pipe and the screening bin.

[0007] Furthermore, the agitation assembly includes an installation tube, a connecting spring, a rotating cylinder, a pressure rod, a return spring, an agitating rod, a connecting rod, a moving rod, and a guide groove. An installation tube is located on one side of the side plate, and a rotating cylinder is located inside the installation tube. A connecting spring is located on one side of the rotating cylinder, and a moving rod is located on one side of the connecting spring. Guide grooves are symmetrically located at the top and bottom of the moving rod. Pressure rods are symmetrically located at the top and bottom of the installation tube. After the moving rod rotates to a designated position, it can cause the pressure rod to contact the guide groove, thereby pushing the moving rod to move. A return spring is located on the outside of the pressure rod. A connecting rod is located on one side inside the storage hopper, and an agitating rod is hinged to one side of the connecting rod. During the rotation of the discharge pipe, the force generated by the rotation of the discharge pipe can drive the moving rod to reciprocate. During this reciprocating motion, the agitating rod swings back and forth, allowing it to agitate the material falling from the discharge port, thus preventing material accumulation and blockage.

[0008] Furthermore, the interior of the discharge pipe is made of a conical structure, which allows the material to collect inside the storage bin under the influence of centrifugal force, facilitating material discharge. The top and bottom of the discharge pipe and the connecting frame are provided with threaded holes, and the connecting bolts are located inside the threaded holes. The discharge pipe and the connecting frame are connected through the threaded holes, which facilitates the installation of the discharge pipe, enabling it to be connected to the ball mill and facilitating subsequent replacement of the discharge pipe, thus improving convenience.

[0009] Furthermore, one end of the impact plate is provided with a through groove, and both sides of the impact plate are provided with mounting holes. The mounting rod is located inside the mounting hole, and the torsion spring is located inside the through groove. During installation, the through groove can restrict the impact plate, and after the impact plate is overturned by external force, it is easy to reset it later.

[0010] Furthermore, a limiting plate is provided at the top of the pressure rod, and the return spring is connected to the limiting plate and the mounting tube. During use, it can drive the pressure rod to move and limit the position of the pressure rod, which facilitates the subsequent movement of the moving rod. The top of the mounting tube is provided with an insertion hole, and the bottom of the pressure rod extends into the interior of the mounting tube through the insertion hole. The bottom of the pressure rod is made of an arc-shaped structure. The pressure rod and the guide groove are adapted to each other. After the pressure rod extends into the interior of the guide groove, it can squeeze the guide groove. Under the action of the inclined surface of the guide groove, it can drive the moving rod to move.

[0011] Furthermore, a mounting groove is provided on one side of the top of the movable rod, and a sliding groove is provided at one end of the mounting groove. A sliding rod is provided at the bottom of one end of the stirring rod, and the sliding rod and the sliding groove are adapted to each other. During the process of the movable rod driving the stirring rod to rotate, the bottom of the stirring rod can limit the stirring rod through the cooperation of the sliding rod and the sliding groove, thereby ensuring the stability of the stirring rod position and preventing the rotation of the stirring rod from being restricted.

[0012] Furthermore, a locking plate is provided on one side of the moving rod, and the connecting spring is connected to the locking plate to ensure the stability of the moving rod during the sliding process. When the moving rod slides, it can restrict the moving rod to prevent it from falling off. The connection between the connecting spring and the moving rod facilitates the subsequent reset of the moving rod.

[0013] Furthermore, the storage bin has an installation hole on one side, the rotating drum is located inside the installation hole, and the moving rod extends through the installation hole into the inside of the discharge pipe. During the rotation of the discharge pipe, the rotating drum can be driven to rotate, thereby facilitating the subsequent flow of materials.

[0014] Compared with the prior art, the present invention provides a discharge device for a continuous ball mill, which has the following beneficial effects:

[0015] 1. This invention, through the cooperation of a discharge pipe, a screen hopper, a ramming plate, a base plate, a fixing frame, a through groove, a mounting rod, and a torsion spring, can screen the falling material after grinding. This allows material of normal particle size to be discharged normally, while larger particles remain inside the screen hopper. After the screen hopper rotates to a designated position, these larger particles return to the ball mill for re-grinding, thereby improving the fineness of the material. Furthermore, no further re-screening and grinding is required. During the screening process in the screen hopper, the ramming plate impacts the screen hopper to cause vibration, facilitating material discharge and preventing blockage.

[0016] 2. Through the cooperation of the installation pipe, connecting spring, rotating drum, pressure rod, reset spring, stirring rod, connecting rod, moving rod, and guide groove, this invention can continuously stir the material falling at the discharge port during the discharge process, so that the material will not accumulate, thereby effectively preventing the object from being blocked and unable to discharge, and also ensuring the speed of material discharge, thus enabling rapid discharge. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is an enlarged view of the agitation assembly of the present invention;

[0020] Figure 4 This is a perspective view of the movable rod of the present invention.

[0021] In the diagram: 1. Discharge pipe; 2. Connecting frame; 3. Storage bin; 4. Screening bin; 5. Impact plate; 6. Base plate; 7. Fixing frame; 8. Through groove; 9. Mounting rod; 10. Torsion spring; 11. Agitator assembly; 111. Mounting pipe; 112. Connecting spring; 113. Rotary drum; 114. Pressure rod; 115. Return spring; 116. Agitator rod; 117. Connecting rod; 118. Moving rod; 119. Guide groove; 12. Discharge port; 13. Side plate; 14. Baffle; 15. Connecting bolt. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1

[0024] Please see Figures 1-3 A discharge device for a continuous ball mill includes a discharge pipe 1, a connecting frame 2 on the outside of the discharge pipe 1, and multiple sets of connecting bolts 15 on the outside of the connecting frame 2 for easy installation of the discharge pipe 1. The connecting bolts 15 can also be placed on an external support base, facilitating rotation of the discharge pipe 1 and the connecting bolts 15 by the ball mill. A baffle 14 is provided on one side of the top of the discharge pipe 1 to block material entering the storage bin 3, preventing backflow and facilitating discharge from the discharge port 12 to the outside. A storage bin 3 is located on one side of the discharge pipe 1, and a screening bin 4 is located on the top of the storage bin 3 to screen the material, allowing ground material to be screened out while larger particles are blocked in the screening bin 4. The internal structure facilitates subsequent re-grinding. The bottom of the screening bin 4 has a discharge port 12, and the storage bin 3 has a stirring assembly 11. One side of the discharge pipe 1 has a side plate 13, and the bottom of one side of the side plate 13 has a bottom plate 6. The top of the bottom plate 6 has a fixing frame 7, and the fixing frame 7 has an installation rod 9 inside. A torsion spring 10 is located in the middle of the outer side of the installation rod 9, and a collision plate 5 is located between the two outer sides of the installation rod 9. During the rotation of the discharge pipe 1 driven by the ball mill, the screening bin 4 can collide with the collision plate 5 after rotating to a certain position, causing vibration inside the screening bin 4 and allowing the material to fall quickly from inside the screening bin 4, improving screening efficiency without affecting the rotation of the discharge pipe 1 and the screening bin 4.

[0025] In the ball mill grinding process, the material is usually discharged directly, requiring subsequent screening and re-grinding. This device, however, can screen the falling material after grinding, allowing material of normal particle size to be discharged normally, while larger particles remain inside the screening bin 4. After the screening bin 4 rotates to a designated position, these larger particles return to the ball mill for re-grinding, thereby improving the fineness of the material and eliminating the need for subsequent screening and grinding. During the screening process in the screening bin 4, the impact plate 5 can impact the screening bin 4 to generate vibration, facilitating material discharge and preventing material blockage.

[0026] During the material grinding process, the discharge pipe 1 rotates along with the ball mill. Due to centrifugal force, the material accumulates inside the storage bin 3. When the storage bin 3 rotates to a designated position, the material falls through the discharge port 12 into the screening bin 4 under the influence of gravity. The screening bin 4 then screens the material. Small particles fall through the mesh of the screening bin 4, while large particles are blocked inside. After the screening bin 4 rotates to a designated position, the material falls back into the storage bin 3. The material is recycled from the inside of the discharge pipe 1 so that it can be returned to the inside of the ball mill for grinding. During the screening process, the screen hopper 4 will also hit the impact plate 5. Under the influence of the impact force, the screen hopper 4 will vibrate to accelerate the screening speed. Then the screen hopper 4 continues to rotate, causing the impact plate 5 to flip, which compresses the torsion spring 10 so that the impact plate 5 does not restrict the rotation of the screen hopper 4. When the screen hopper 4 is no longer in contact with the impact plate 5, the through groove 8 resets and causes the impact plate 5 to flip, so that the impact plate 5 returns to its original position.

[0027] The inside of the discharge pipe 1 is made of a conical structure. Under the influence of centrifugal force, the material can be collected into the storage bin 3 for easy discharge. The top and bottom of the discharge pipe 1 and the connecting frame 2 are provided with threaded holes. The connecting bolt 15 is located inside the threaded hole. The discharge pipe 1 and the connecting frame 2 are connected through the threaded hole, which facilitates the installation of the discharge pipe 1, allows the discharge pipe 1 to be connected to the ball mill, and facilitates the subsequent replacement of the discharge pipe 1, thus improving convenience.

[0028] One end of the impact plate 5 is provided with a through groove 8, and the two sides of the impact plate 5 are provided with mounting holes. The mounting rod 9 is located inside the mounting hole, and the torsion spring 10 is located inside the through groove 8. During the installation process, the through groove 8 can restrict the impact plate 5. After the impact plate 5 is overturned by external force, it is easy to reset it later.

[0029] Example 2

[0030] Please see Figures 1-4 Further modifications were made based on Example 1:

[0031] The agitation assembly 11 includes a mounting tube 111, a connecting spring 112, a rotating drum 113, a pressure rod 114, a return spring 115, an agitating rod 116, a connecting rod 117, a moving rod 118, and a guide groove 119. The mounting tube 111 is located on one side of the side plate 13. The rotating drum 113 is located inside the mounting tube 111. A connecting spring 112 is located on one side of the rotating drum 113. A moving rod 118 is located on one side of the connecting spring 112. Guide grooves 119 are symmetrically provided at the top and bottom of the moving rod 118. Pressure rods 114 are symmetrically provided at the top and bottom of the mounting tube 111. When the moving rod 118 rotates to a designated position… After placement, it can drive the pressure rod 114 to contact the guide groove 119, thereby pushing the moving rod 118 to move. The pressure rod 114 is provided with a return spring 115 on the outside. A connecting rod 117 is provided on one side inside the storage bin 3. A stirring rod 116 is hinged on one side of the connecting rod 117. During the rotation of the discharge pipe 1, the force of the discharge pipe 1 during rotation can be used to drive the moving rod 118 to reciprocate. During the reciprocating motion, the stirring rod 116 swings back and forth, so that the stirring rod 116 can stir the material falling at the discharge port 12, thereby preventing the material from accumulating and causing blockage.

[0032] During the discharge process, if too much material enters, it will cause blockage. However, this device can continuously agitate the material falling from the 12 discharge ports during the discharge process, so that the material will not accumulate, thus effectively preventing the material from being blocked and unable to fall, and also ensuring the speed of material falling, thereby quickly discharging the material.

[0033] During the material discharge process, the discharge pipe 1 rotates, which in turn drives the rotating drum 113 and the moving rod 118 to rotate. When the rotating drum 113 and the moving rod 118 reach the designated position, the return spring 115 resets, causing the return spring 115 to move the pressure rod 114 downwards. After the pressure rod 114 moves downwards, it presses against the guide groove 119. Under the guidance of the guide groove 119, the moving rod 118 moves, causing the connecting spring 112 to stretch. Rod 118 then drives stirring rod 116 to rotate, causing stirring rod 116 to stir at connecting spring 112. During the stirring process, the connecting spring 112 is blocked, thus preventing blockage. When pressure rod 114 disengages from guide groove 119, pressure rod 114 no longer squeezes guide groove 119. At this time, connecting spring 112 resets, and then connecting spring 112 drives moving rod 118 to move, so that moving rod 118 returns to its original position, facilitating subsequent stirring.

[0034] The top of the pressure rod 114 is provided with a limiting plate. The return spring 115 is connected to the limiting plate and the mounting tube 111. During use, it can drive the pressure rod 114 to move and limit the position of the pressure rod 114, which facilitates the subsequent movement of the moving rod 118. The top of the mounting tube 111 is provided with a socket. The bottom of the pressure rod 114 extends into the interior of the mounting tube 111 through the socket. The bottom of the pressure rod 114 is made of an arc-shaped structure. The pressure rod 114 and the guide groove 119 are adapted to each other. After the pressure rod 114 extends into the interior of the guide groove 119, it can squeeze the guide groove 119. Under the action of the inclined surface of the guide groove 119, it can drive the moving rod 118 to move.

[0035] The top of the moving rod 118 is provided with a mounting groove on one side, and a sliding groove is provided at one end of the mounting groove. The bottom of one end of the stirring rod 116 is provided with a sliding rod, and the sliding rod and the sliding groove are adapted to each other. During the process of the moving rod 118 driving the stirring rod 116 to rotate, the bottom of the stirring rod 116 can limit the stirring rod 116 through the cooperation of the sliding rod and the sliding groove, thereby ensuring the stability of the position of the stirring rod 116 and preventing the rotation of the stirring rod 116 from being restricted.

[0036] A locking plate is provided on one side of the movable rod 118. The connecting spring 112 is connected to the locking plate to ensure the stability of the movable rod 118 during the sliding process. When the movable rod 118 slides, it can restrict the movable rod 118 to prevent it from falling off. The connecting spring 112 is connected to the movable rod 118, which facilitates the subsequent reset of the movable rod 118.

[0037] The storage bin 3 has an installation hole on one side, the rotating drum 113 is located inside the installation hole, and the moving rod 118 extends through the installation hole to the inside of the discharge pipe 1. During the rotation of the discharge pipe 1, the rotating drum 113 can be driven to rotate, which facilitates the subsequent flow of materials.

[0038] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A discharge device for a continuous ball mill, comprising a discharge pipe (1), characterized in that: The discharge pipe (1) is provided with a connecting frame (2) on the outside, and multiple sets of connecting bolts (15) are provided on the outside of the connecting frame (2). A baffle (14) is provided on one side of the top of the discharge pipe (1). A storage bin (3) is provided on one side of the discharge pipe (1). A screening bin (4) is provided on the top of the storage bin (3). A discharge port (12) is provided at the bottom of the screening bin (4). An agitator (11) is provided inside the storage bin (3). A side plate (13) is provided on one side of the discharge pipe (1). A bottom plate (6) is provided at the bottom of one side of the side plate (13). (6) has a fixed frame (7) at the top, and a mounting rod (9) is provided inside the fixed frame (7). A torsion spring (10) is provided in the middle of the outer side of the mounting rod (9), and a collision plate (5) is provided between the two sides of the outer side of the mounting rod (9). The stirring assembly (11) includes a mounting tube (111), a connecting spring (112), a rotating drum (113), a pressure rod (114), a reset spring (115), a stirring rod (116), a connecting rod (117), a moving rod (118), and a guide groove (119). The side plate (13) has a mounting tube (111) on one side. The installation tube (111) is equipped with a rotating cylinder (113) inside. A connecting spring (112) is provided on one side inside the rotating cylinder (113). A moving rod (118) is provided on one side of the connecting spring (112). Guide grooves (119) are symmetrically provided at the top and bottom of the moving rod (118). Pressure rods (114) are symmetrically provided at the top and bottom of the installation tube (111). A return spring (115) is provided on the outside of the pressure rod (114). A connecting rod (117) is provided on one side inside the storage bin (3). An agitator rod is hinged to one side of the connecting rod (117). 116), the top of the moving rod (118) is provided with an installation groove on one side, and a sliding groove is provided at one end of the installation groove. The bottom of one end of the stirring rod (116) is provided with a sliding rod, and the sliding rod and the sliding groove are adapted to each other. The discharge pipe rotates with the ball mill. When the storage bin rotates to the designated position, the material falls into the inside of the screen bin under the influence of gravity. After the screen bin rotates to the designated position, the large particles return to the inside of the ball mill for grinding. The rotation of the discharge pipe drives the moving rod to reciprocate, so that the stirring rod swings back and forth, so that the stirring rod can stir the material falling at the discharge port.

2. The discharge device of a continuous ball mill according to claim 1, characterized in that: The inside of the discharge pipe (1) is made of a conical structure. The top and bottom of the discharge pipe (1) and the connecting frame (2) are provided with threaded holes. The connecting bolt (15) is located inside the threaded hole. The discharge pipe (1) and the connecting frame (2) are connected through the threaded hole.

3. The discharge device of a continuous ball mill according to claim 1, characterized in that: One end of the impact plate (5) is provided with a through groove (8), and the two sides of the impact plate (5) are provided with mounting holes. The mounting rod (9) is located inside the mounting hole, and the torsion spring (10) is located inside the through groove (8).

4. The discharge device of a continuous ball mill according to claim 1, characterized in that: The top of the pressure rod (114) is provided with a limiting plate. The reset spring (115) is connected to the limiting plate and the mounting tube (111). The top of the mounting tube (111) is provided with an insertion hole. The bottom of the pressure rod (114) extends into the interior of the mounting tube (111) through the insertion hole. The bottom of the pressure rod (114) is made of an arc-shaped structure. The pressure rod (114) and the guide groove (119) are mutually adapted.

5. The discharge device of a continuous ball mill according to claim 1, characterized in that: A retaining plate is provided on one side of the moving rod (118), and the connecting spring (112) is connected to the retaining plate.

6. The discharge device of a continuous ball mill according to claim 1, characterized in that: The storage bin (3) has an installation hole on one side, the rotating drum (113) is located inside the installation hole, and the moving rod (118) extends through the installation hole to the inside of the discharge pipe (1).

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