A material supplementing device for an intermittent ball mill

Abstract

The utility model discloses a kind of material supplementing device of intermittent ball mill, switch cover is installed at the feeding opening of ball mill by bolt, the upper portion of ball mill is provided with operating platform, material conveyor, water replenishing pipe and crane of slurry discharger, material conveyor is installed with downcomer, operating platform is provided with the operating port of switch cover for facilitating assembly and disassembly, quick coupling is provided on the downcomer with water replenishing pipe, the lower portion of downcomer is also connected with telescopic pipe that can be inserted into the feeding opening of ball mill;The utility model has the beneficial effect that: in the process of feeding, water and material enter the new downcomer after improvement simultaneously, and enter the inside of ball mill along telescopic pipe, not only eliminate dust, but also eliminate the possible material jamming phenomenon of original downcomer.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding equipment, and in particular to a material replenishment device for an intermittent ball mill. Background Technology

[0002] A wet intermittent ball mill is a type of grinding equipment that operates intermittently with water. It consists of main components such as a water feeding section, a transmission section, a rotating section, and a slurry discharge section. Its working principle involves first loading a certain number of grinding balls into the ball mill, then adding the material and water in a weighed and proportioned ratio. The rotation of the ball mill generates centrifugal force, which lifts the grinding balls to a certain height before they fall, impacting and grinding the material. Simultaneously, a certain degree of grinding also occurs between the materials themselves, ultimately yielding a slurry with the required fineness and uniformity.

[0003] Due to its dual function of homogenization and grinding, it is widely used in industries such as refractory raw materials, ceramic raw materials, metal smelting, and mineral processing. The ball mill has an opening; during production, the opening needs to be opened periodically to remove the ground slurry, add new material and water, and then close the opening again for further grinding.

[0004] As per the instruction manual Figure 1 — Figure 3 As shown, this is the ball mill 9 currently used by our company. The ball mill 9 has a feed port and a discharge port, arranged at 180°. Each port is connected to a switch cover 8 by four bolts. The two switch covers 8 are identical in shape and have U-shaped fixing holes 81. This allows the bolts to be adjusted from a vertical to a horizontal position simply by loosening the nuts, without needing to remove them, so that the switch cover 8 can be removed. Above the ball mill 9 are an operating platform 7, a material conveyor 3, a water supply pipe 5, and a traveling crane 2. The material conveyor 3 is equipped with a discharge pipe 61, and the traveling crane 2 is used to hoist the discharge device 4. The bottom of the discharge device 4 has a flange with the same structure as the switch covers 8. The operating platform 7 has an operating port for easy installation and removal of the switch covers 8. During production, the feeding and discharge procedures of the ball mill 9 are as follows: During feeding, slowly rotate the ball mill 9 so that its discharge port faces upward and aligns with the operating port on the operating platform 7. The operator descends from the operating platform 7 to the ball mill's discharge port, uses a wrench to remove the four bolts on the flange of the discharge device 4, and moves the bolts to a horizontal position. The operator then ascends from the ball mill's discharge port to the operating platform 7 and uses the overhead crane 2 to move the discharge device 4 (weighing up to 150 kg) to a fixed location for storage. Install the switch cover 8 at the discharge port, then slowly rotate the ball mill 9 so that its feed port faces upward and aligns with the operating port on the operating platform 7. The operator then descends from the operating platform 7 to the ball mill's feed port and uses a wrench to remove the four bolts on the flange of the discharge device 4. Remove the four bolts on the switch cover 8 and turn them to a horizontal position. → The operator climbs from the ball mill's feed inlet to the operating platform 7 and uses the overhead crane 2 to move the switch cover 8 to a fixed position for storage. → Open the valve on the feed pipe 61 to start feeding. → After the material reaches the specified weight, open the valve on the water supply pipe 5 to start adding water. → After feeding and watering are completed, use the overhead crane 2 to lift the switch cover 8 above the feed inlet of the ball mill 9. → After calibrating the screw hole position, place the switch cover 8 at the feed inlet of the ball mill 9. → Turn the bolts to a vertical position and tighten the four bolts with a wrench to ensure that the cover does not open and there is no leakage of slurry during the rotation of the ball mill. This completes the feeding process.

[0005] After the slurry grinding is completed, when discharging the slurry, slowly rotate the ball mill 9 so that the discharge port of the ball mill 9 faces upward and aligns with the operating port on the operating platform 7. → The operator goes down from the operating platform 7 to the discharge port of the ball mill, uses a wrench to remove the four bolts on the switch cover 8 and moves the bolts to a horizontal position. → The operator goes up from the discharge port of the ball mill to the operating platform 7, uses the overhead crane 2 to move the switch cover 8 to a fixed position for storage, and then uses the overhead crane 2 to lift the slurry discharge device 4 above the discharge port of the ball mill. → After calibrating the position of the screw holes, place the slurry discharge device 4 at the discharge port of the ball mill 9 and move the bolts to a vertical position. → The operator goes down from the operating platform to the discharge port of the ball mill 9 and uses a wrench to tighten the four bolts. → The operator goes up from the discharge port of the ball mill to the operating platform 7, slowly rotates the mill so that the discharge port of the mill faces downward, and begins discharging the slurry.

[0006] The feeding and discharging operations are repeated alternately until the shift's task is completed. Each feeding and discharging operation takes 40 minutes. If three batches of slurry are needed per shift, then the cover needs to be opened and closed 12 times, taking 120 minutes.

[0007] The aforementioned procedures are complex, lengthy, and have the following drawbacks: 1. The labor intensity for employees is high, requiring frequent opening and closing of the ball mill cover and switching of the discharge valve.

[0008] 2. When employees are disassembling or assembling bolts, they need to go down from the operating port of the operating platform 7 to the opening of the ball mill 9, which poses a certain safety risk.

[0009] 3. The material flows into the ball mill along the feed pipe 61. Since the feed pipe 61 cannot penetrate deep into the feed port of the ball mill, and there is a large gap between the feed pipe 61 and the feed port of the ball mill, dust is easily generated during feeding, which is not good for environmental protection.

[0010] 4. The added material and water are mixed inside the ball mill. During the feeding process, the feed pipe 61 may experience material jamming, which will affect efficiency.

[0011] 5. Adding materials and water are done separately, resulting in a long operation time.

[0012] For example, the patent application number "CN202221532312.3" discloses "an automatic opening mechanism for a ball mill", which realizes the automatic opening / closing of the ball mill. However, the structure of this device is relatively complex and cannot be adapted to our company's ball mill products. Summary of the Invention

[0013] The purpose of this invention is to provide a material replenishment device for an intermittent ball mill, which can efficiently and safely complete the feeding and water replenishment of the ball mill.

[0014] To achieve the above objectives, the present invention adopts the following technical solution: A material replenishment device for an intermittent ball mill includes a switch cover bolted to the feed inlet of the ball mill. Above the ball mill are an operating platform, a material conveyor, a water supply pipe, and a trolley for hoisting and discharging the slurry. A discharge pipe is mounted on the material conveyor. An operating port for easy installation and removal of the switch cover is provided on the operating platform. The device is characterized by a quick connector connected to the water supply pipe on the discharge pipe, and a telescopic pipe extending into the feed inlet of the ball mill connected to the lower part of the discharge pipe.

[0015] Preferably, the opening and closing structure also includes a special sleeve for loosening / tightening the switch cover bolts.

[0016] Preferably, the special sleeve includes a pole, one end of which is provided with a handle, and the other end of which is provided with a sleeve for accommodating the nut in the switch cover bolt, and the side wall of the sleeve is provided with a bolt posture adjuster.

[0017] Preferably, the opening and closing structure further includes a safety cover plate that can cover the operating port, the safety cover plate having a clearance hole through which a special sleeve can pass.

[0018] Preferably, a sealing plate is provided at the lower end of the telescopic tube.

[0019] Preferably, the sealing plate has the same structure as the switch cover.

[0020] Preferably, the telescopic tube is made of a transparent material.

[0021] The beneficial effects of this utility model are as follows: 1. During the feeding process, water and material enter the improved new feed pipe at the same time and enter the ball mill through the telescopic pipe, which not only eliminates dust, but also eliminates the material jamming phenomenon that may occur in the original feed pipe.

[0022] 2. The telescopic tube is retractable, lightweight, and easy to move; the telescopic tube is transparent, making it easy to observe the movement of materials and water.

[0023] 3. The tool for tightening and loosening bolts has been changed from a wrench to a special socket, which can both loosen and install bolts and adjust their condition, avoiding the need for operators to go up and down between the operating platform and the ball mill opening, thus reducing safety risks.

[0024] 4. Adding materials and water simultaneously reduces the operation time by nearly half and improves efficiency. Attached Figure Description

[0025] Figure 1 This is a front view of an opening and closing structure in the prior art; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a top view of the switch cover; Figure 4 This is a front view of the opening and closing structure in this application; Figure 5 for Figure 4 A magnified view of a section at point B (during disassembly and assembly of the switch cover); Figure 6 for Figure 4 A magnified view of a section at point B (during the addition of materials and water); Figure 7 This is a front view of the special sleeve in this application; Figure 8 for Figure 7 A magnified view of a section at point C; Figure 9 This is a structural diagram of a safety cover.

[0026] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0027] The present invention will now be further described with reference to the accompanying drawings. Example

[0028] This embodiment of a material replenishment device for an intermittent ball mill is an improvement on the ball mill currently used by our company. Some of its structures are consistent with existing structures, such as: the ball mill 9 is provided with a feed port and a discharge port, arranged at 180° on the ball mill 9. Each of the two openings is connected to a switch cover 8 by four bolts. The two switch covers 8 have identical shapes and U-shaped fixing holes 81 on them. This allows the bolts to be adjusted from a vertical fixed state to a horizontal state simply by loosening the nuts without removing them, after which the switch cover 8 can be removed. Above the ball mill 9 are an operating platform 7, a material conveyor 3, a water supply pipe 5, and a traveling crane 2. The material conveyor 3 is equipped with a discharge pipe 61, and the traveling crane 2 is used to hoist the discharge device 4. The bottom of the discharge device 4 has a flange with the same structure as the switch cover 8. The operating platform 7 has an operating port for easy installation and removal of the switch cover 8.

[0029] Based on the existing structure mentioned above, such as Figure 4 , Figure 5 and Figure 6 As shown in this application, the material conveyor 3 is connected to the improved new discharge pipe 62. The new discharge pipe 62 is equipped with a quick connector that connects to the water supply pipe 5. The lower part of the new discharge pipe 62 is also connected to a telescopic pipe 63 that can extend into the ball mill's feed port. The telescopic pipe 63 is transparent and made of PU material. Spiral fine steel wire rings are embedded inside the PU material. When shortened, the steel wire rings are compressed, the distance becomes shorter, and the PU is soft, allowing it to be almost folded together. A sealing plate 10 is provided at the lower end of the telescopic pipe 63, and the sealing plate 10 has the same structure as the switch cover 8. In this way, when discharging material through the new discharge pipe 62 and the telescopic pipe 63, not only can water and material be added to them simultaneously, but the sealing plate 10 also seals the feed port of the ball mill 9, which avoids dust and reduces the possibility of material jamming in the discharge pipe.

[0030] like Figure 4 , Figure 7 and Figure 8 As shown, a special sleeve 12 is designed to improve the safety and comfort of employees during operation. It includes a pole 122, with a handle 121 at one end and a socket 124 at the other end to accommodate the nut in the switch cover bolt. A bolt posture adjuster 123 is located on the side wall of the socket 124. When loosening / tightening the switch cover bolt, the employee can stand on the operating platform 7 without having to descend to the opening of the ball mill 9. Then, turning the handle 121 will tighten the nut of the switch cover bolt. After loosening, the switch cover bolt can be moved to a horizontal position using the bolt posture adjuster 123; to tighten, the switch cover bolt must first be moved vertically and positioned within the U-shaped fixing hole 81 of the switch cover 8 using the bolt posture adjuster 123, and then the handle 121 can be turned to tighten it.

[0031] like Figure 4 and Figure 9 As shown, to further improve the safety of employee operation, a safety cover 11 is designed to cover the operating port. The safety cover 11 has a clearance hole 113 through which a special sleeve 12 can pass. During the loosening / tightening of the switch cover bolts, to prevent employees from accidentally falling from the operating port onto the ball mill 9, the safety cover 11 can be used to close the operating port. The safety cover 11 is also equipped with a handle 112 for easy lifting.

[0032] For the ball mill's timed opening / closing of the cover and material discharge during operation, this application significantly simplifies the operation process by designing the aforementioned components, while also improving operational safety.

[0033] The above embodiments are not intended to limit the shape, material, structure, etc. of this utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0035] If the terms "first" or "second" are used in this document to define the components, those skilled in the art should know that the use of "first" or "second" is merely for the convenience of describing this utility model and simplifying the description, and unless otherwise stated, the above terms have no special meaning.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A material replenishment device for an intermittent ball mill, wherein a switch cover is bolted to the feed inlet of the ball mill, an operating platform, a material conveyor, a water supply pipe, and a crane for hoisting and discharging the slurry are provided above the ball mill, a discharge pipe is installed on the material conveyor, and an operating port for easy installation and removal of the switch cover is provided on the operating platform, characterized in that... The feed pipe is equipped with a quick connector that connects to the water supply pipe, and the lower part of the feed pipe is also connected to a telescopic pipe that can extend into the feed port of the ball mill.

2. The material replenishment device for an intermittent ball mill according to claim 1, characterized in that, It also includes a special socket for loosening / tightening the switch cover bolts.

3. The material replenishment device for an intermittent ball mill according to claim 2, characterized in that, The special sleeve includes a pole, one end of which is provided with a handle, and the other end of which is provided with a sleeve for accommodating the nut in the switch cover bolt. The side wall of the sleeve is provided with a bolt posture adjuster.

4. The material replenishment device for an intermittent ball mill according to claim 2, characterized in that, It also includes a safety cover that can be placed over the operating port, the safety cover having a clearance hole through which a special sleeve can pass.

5. A material replenishment device for an intermittent ball mill according to claim 1, characterized in that, A sealing plate is provided at the lower end of the telescopic tube.

6. A material replenishment device for an intermittent ball mill according to claim 5, characterized in that, The sealing plate has the same structure as the switch cover.

7. The material replenishment device for an intermittent ball mill according to claim 1, characterized in that, The telescopic tube is made of a transparent material.

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