A tower mill carrier

Abstract

A tower mill carrier comprises a vehicle-mounted unit, a grinding unit, a grinding product conveying unit, and a grinding medium adding facility unit. The vehicle-mounted unit consists of a locomotive and a grinding car body. The locomotive serves as the traction power during the relocation of the tower mill carrier, pulling the grinding car body. The grinding unit is installed on the grinding car body. The grinding medium adding facility unit and the grinding product conveying unit are arranged on both sides of the grinding car body when working, and are stored in the storage box of the locomotive during transfer. They are moved to the factory area together with the vehicle-mounted unit. The beneficial effects of the present invention are: low transportation cost, good adaptability to terrain, no need to set up traditional fixed factory buildings, reduced infrastructure investment, and realized the mobility and reuse of all ore processing facilities, thereby improving economic benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of ore grinding in a ore dressing plant, in particular to a tower mill carrier. Background Art

[0002] Currently, in many open-pit mines, most of the mineral processing processes are to crush and grind the materials to the particle size required for complete dissociation, and then carry out subsequent operations such as gravity separation or flotation to finally obtain concentrate.

[0003] In current mines, most grinding facilities after crushing need to set up a fixed beneficiation plant. The crushed ore is transported to the beneficiation plant by a belt conveyor. The belt conveyor transportation can easily cause a large amount of ore loss. In addition, the terrain of the mine is complex, and the transportation path of the belt conveyor needs to adapt to the mine environment. The need for an additional intermediate transfer station increases production costs, increases workload, and has low production efficiency. It is not suitable for the needs of modern high-speed production. In order to build a reusable beneficiation plant, it is necessary to disassemble the various operating units of the beneficiation plant into modular movable units. The present invention is to carry out traction integration of the tower mill so that it can be modularly reused. Summary of the Invention

[0004] The present invention provides a tower mill carrier. In order to solve a series of practical technical problems such as low ore grinding production efficiency and high economic cost, the present invention integrates the tower mill and a carrier. The integrated tower mill carrier can be quickly moved as the location of the mine changes, making the tower mill process more flexible. This will realize the repeated use of mineral processing equipment, greatly reduce the transportation distance of mined ore, and greatly reduce equipment purchase costs and production costs.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A tower mill carrier, characterized in that it includes a vehicle-mounted unit, a grinding unit, a grinding product conveying unit, and a grinding medium adding facility unit. The vehicle-mounted unit is composed of a locomotive and a grinding car body. The locomotive serves as the traction power during the relocation process of the tower mill carrier, pulling the grinding car body, and the grinding unit is installed on the grinding car body. The grinding medium adding facility unit and the grinding product conveying unit are arranged on both sides of the grinding car body when working, and are stored in the storage box of the locomotive during transfer, and are transferred to the site together with the vehicle-mounted unit.

[0007] The grinding unit includes a grinding door frame, a tower mill, a feeding box, a medium adding box, a hydraulic push rod, a connecting shaft, and a discharge pipe. There are two platforms on the grinding door frame. When the grinding door frame is raised, the feeding platform and the base platform are arranged from top to bottom. The feet of the grinding door frame are provided with four ground anchors. The tower mill base plate is installed at the bottom of the tower mill, and the tower mill base plate is connected to the base platform. The tower mill is installed on the base platform. The feeding box is installed on the feeding platform above the tower mill, and a water supply pipe is installed on the feeding box. A medium adding box is installed on one side of the feeding box. A bucket elevator for transporting concentrate is connected above the feeding box. The head chute and the upper part of the two side plates of the grinding car body are connected to the middle position of the two sides of the grinding portal frame through hydraulic push rods. The hydraulic push rods are controlled by the control box and the hydraulic power unit. The hydraulic power unit and the control box are installed at the lower part of the grinding car body. The tail of the grinding car body is connected to the connecting shaft on the side column of the grinding portal frame. The hydraulic push rods and the connecting shaft cooperate to act on the grinding portal frame. When working, the grinding portal frame and the tower mill are pushed up to work upright, and are laid down and placed horizontally in the grinding car body during transfer. The discharge pipe is installed at the discharge end of the tower mill. When the tower mill is working, the discharge pipe is connected to the conveying and stirring tank of the grinding product conveying unit.

[0008] The grinding product conveying unit is composed of a conveying stirring tank, a conveying pump and a conveying pipeline. When the conveying pipeline is in operation, it is connected to a long-distance conveying device. Both sides of the conveying stirring tank are processed with lifting ears.

[0009] The ground anchors are circular with a diameter of 500-1000 mm, and the anchor rods of the four ground anchors are fully threaded structures.

[0010] The conveying and stirring tank is a steel tank body.

[0011] The bucket elevator is installed on the vehicle body of the upper operating carrier unit.

[0012] The tower mill carrier working method is as follows:

[0013] S1. The locomotive pulls the onboard unit, grinding unit, grinding product conveying unit, and grinding medium addition facility unit under an operating concentrate bucket elevator in the open-pit mine. The grinding product conveying unit and grinding medium addition facility unit are lifted from the locomotive's storage box by a truck crane and installed on both sides of the grinding unit.

[0014] S2. Use the hydraulic power unit and control box to control the hydraulic push rod to push up the grinding portal frame, rotate the connecting shaft, and erect the grinding portal frame at the rear of the grinding vehicle body. Secure the four ground anchors of the grinding portal frame to the ground, and connect the discharge pipe to the conveying and stirring tank in the grinding product conveying unit.

[0015] S3. Install the head chute of the bucket elevator above the feed ore box. The bucket elevator transports the ultra-finely crushed ore to be ground. Connect the medium adding box of the grinding unit to the medium adding equipment of the grinding medium adding facility unit.

[0016] S4. Start the system. The ultra-fine ore enters the feed box through the head chute of the bucket elevator, and the medium material enters the medium addition box. Then, they enter the tower mill together. The tower mill grinds the ore to a particle size of P80 = 50-80 microns, thereby achieving material dissociation. The ore is then transported to the grinding product conveying unit through the discharge pipe, and then connected to the long-distance conveying equipment through the conveying pipe to be transported out of the mine.

[0017] S5. When the grinding work is completed, the hydraulic power unit and the control box control the hydraulic push rod to retract, and the grinding portal frame is rotated and laid down through the connecting shaft. The grinding portal frame is completely folded back to be flush with the grinding car body, and the hydraulic push rods are located on both sides of the grinding car body. The grinding product conveying unit and the grinding medium adding facility unit are retracted into the storage box, and then the tower mill carrier is pulled to other working mines by the locomotive.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1) The integration of grinding facilities and train bodies reduces transportation costs and has good adaptability to terrain. It does not require the establishment of a grinding workshop contained in a traditional fixed plant and the infrastructure required for long-distance transportation, thus reducing infrastructure investment and improving economic benefits.

[0020] 2) The full mobility of the grinding facilities is realized, so that the grinding facilities can be quickly moved as the mining area changes. The grinding facilities can be reused, which greatly reduces the transportation cost of the raw ore and reduces the production cost.

[0021] 3) The grinding facilities have greater flexibility, better independence, wider applicability, flexibility and mobility, and are more adaptable to the needs of efficient and continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the tower mill carrier structure described in the present invention.

[0023] Figure 2 It is a schematic top view of a tower mill carrier described in the present invention.

[0024] Figure 3 This is a schematic diagram of a tower mill carrier transfer site described in the present invention.

[0025] Figure: 1. Locomotive 2. Grinding car body 3. Grinding portal frame 4. Feeding platform 5. Foundation platform 6. Feeding ore box 7. Medium addition box 8. Water supply pipe 9. Tower mill 10. Hydraulic push rod 11. Tower mill base plate 12. Connecting shaft 13. Hydraulic power unit 14. Control box 15. Discharge pipe 16. Ground anchor 17. Grinding medium addition facility unit 18. Conveying and mixing tank 19. Conveying pump 20. Conveying pipeline 21. Lifting lug 22. Bucket elevator 23. Head chute DETAILED DESCRIPTION

[0026] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0027] like Figure 1 、 2 As shown, a tower mill carrier includes a vehicle-mounted unit, a grinding unit, a grinding product conveying unit, and a grinding medium adding facility unit 17. Its working principle is as follows: all grinding equipment is installed on the grinding portal frame 3, and then the grinding portal frame 3 is connected to the grinding vehicle body 2 through a hydraulic push rod 10 and a connecting shaft 12. The grinding medium adding facility unit 17 and the grinding product conveying unit are placed in the locomotive 1. In this way, all equipment of the grinding process are integrated into a train-mounted unit to achieve full mobility of the grinding facility, so that the grinding facility can be quickly moved as the mining area changes. The grinding facility can be reused, which greatly reduces the transportation cost of the raw ore and reduces the production cost.

[0028] like Figure 1 、 3 As shown, the on-board unit consists of a locomotive 1 and a grinding car body 2. The locomotive 1 serves as the traction power during the relocation of the tower mill carrier, pulling the grinding car body 2, on which the grinding unit is installed. The train has large traction power, which is conducive to transporting large-scale grinding equipment with high efficiency and speed. The grinding medium adding facility unit 17 and the grinding product conveying unit are arranged on both sides of the grinding car body 2 when working, and are stored in the storage box of the locomotive 1 during transfer. They are transferred to the factory area together with the on-board system, and the grinding unit is placed in the grinding car body 2. Other auxiliary units are placed in the storage box of the locomotive 1, which can ensure that all equipment of the entire grinding process is transferred together and the grinding work is carried out effectively.

[0029] like Figure 1 、 2As shown in Figure 3, the grinding unit includes a grinding door frame 3, a tower mill 9, a feeding box 6, a medium adding box 7, a hydraulic push rod 10, a connecting shaft 12, and a discharge pipe 15. Two platforms are processed on the grinding door frame 3. When the grinding door frame 3 is raised, the feeding platform 4 and the base platform 5 are arranged from top to bottom. The foot of the grinding door frame 3 is provided with four ground anchors 16. The bottoms of the four columns of the grinding door frame 3 are all installed with ground anchors 16. When the grinding is working, the ground anchors 16 are embedded deep in the ground, and all the vibration and load of the tower mill 9 during the grinding process are input to the ground, thereby ensuring the stability of the grinding door frame 3. A tower mill base plate 11 is installed at the bottom of the tower mill 9. The tower mill base The plate 11 is connected to the base platform 5, and the tower mill 9 is installed on the base platform 5. The feeding box 6 is installed on the feeding platform 4 above the tower mill 9, and the water supply pipe 8 is installed on the feeding box 6. The medium adding box 7 is installed on one side of the feeding box 6. The two platforms of the grinding door frame 3 are respectively installed with the feeding equipment of the grinding unit and the tower mill 9. The three-dimensional upper and lower structures make the feeding smoother and the structure more compact. When the tower mill 9 is working, the head chute 23 of the bucket elevator 22 for transporting the concentrate is connected above the feeding box 6. The upper part of the two side plates of the grinding car body 2 is connected to the middle position of the two sides of the grinding door frame 3 through a hydraulic push rod 10. The hydraulic push rod 10 is controlled by the control box 13 and the hydraulic power device 14. The power unit 14 and the control box 13 are installed at the lower part of the grinding car body 2. The tail of the grinding car body 2 is connected to the connecting shaft 12 on the side column of the grinding door frame 3. The hydraulic push rod 10 cooperates with the connecting shaft 12 to act on the grinding door frame 3. When the tower mill 9 is working, the grinding door frame 3 and the tower mill 9 are pushed up to work upright. When transferred, they are laid down and placed horizontally in the grinding car body 2. When the tower mill carrier is parked or transferred, the hydraulic push rod 10 is lowered and placed on both sides of the grinding car body 2. The grinding door frame 3 is laid down, and the tower mill 9, feed ore box 6 and medium adding box 7 on the grinding door frame 3 are laid down and recovered into the grinding car body 2, which is convenient for storage and mine transfer. When transferred to the grinding site, When the mine is being operated, the hydraulic push rod 10 is extended to lift the grinding portal frame 3, and the connecting shaft 12 between the grinding portal frame 3 and the grinding car body 2 rotates. The grinding portal frame 3 is placed upright at the tail of the grinding car body 2 and fixed with the ground anchor 16. The feeding ore box 6 on the feeding platform 4 is facing the head chute 23 of the ore bucket elevator 22. The ore falling from the head chute 23 directly enters the feeding ore box 6 to feed the tower mill 9. The discharge pipe 15 is installed at the discharge end of the tower mill 9. When the tower mill 9 is working, the discharge pipe 15 is connected to the conveying and stirring tank 18 of the grinding product conveying unit. The ground ore is transported to the conveying and stirring tank 18 through the discharge pipe 15 to prepare for discharge from the mine.

[0030] like Figure 2As shown, the grinding product conveying unit is composed of a conveying and stirring tank 18, a conveying pump 19 and a conveying pipe 20. The conveying pipe 20 is connected to the long-distance conveying equipment when working. The conveying and stirring tank 18 is processed with lifting ears 21 on both sides. The truck crane lifts the conveying and stirring tank 18 to one side of the grinding vehicle body 2 through the lifting ears 21. The ore output from the tower mill 9 enters the conveying and stirring tank 18 through the discharge pipe 15, and is then pressurized and conveyed into the conveying pipe 20 by the conveying pump 19 until it is output to the long-distance conveying equipment at the mine.

[0031] The ground anchors 16 are circular with a diameter of 500-1000 mm, and the anchor rods of the four ground anchors 16 are fully threaded structures.

[0032] The conveying and stirring tank 18 is a steel tank body.

[0033] like Figure 1 As shown, the bucket elevator 22 is installed on the body of the upper working carrier unit. The upper working carrier crushes the ore into ultra-fine particles and supplies the ultra-fine particles to the tower mill 9 through the bucket elevator 22 .

[0034] like Figure 1 、 2 As shown in , 3, the tower mill carrier working method is as follows:

[0035] S1. Using the traction of the locomotive 1, the vehicle-mounted unit, the grinding unit, the grinding product conveying unit, and the grinding medium addition facility unit 17 are pulled under the concentrate bucket elevator 22 operating on the open-pit mine. The grinding product conveying unit and the grinding medium addition facility unit 17 are lifted out of the storage box of the locomotive 1 by the truck crane and installed on both sides of the grinding unit.

[0036] S2. The hydraulic push rod 10 is controlled by the hydraulic power unit 14 and the control box 13 to push up the grinding portal frame 3, and the connecting shaft 12 is rotated. The grinding portal frame 3 is erected at the rear end of the grinding vehicle body 2. The four ground anchors 16 of the grinding portal frame 3 are fixed to the ground, and the discharge pipe 15 is connected to the conveying and stirring tank 18 in the grinding product conveying unit;

[0037] S3. Install the head chute 23 of the bucket elevator 22 above the feed ore box 6. The bucket elevator 22 transports the ultra-finely crushed ore to be ground. Connect the medium addition box 7 of the grinding unit to the medium addition equipment of the grinding medium addition facility unit 17.

[0038] S4. Start the system. The ultra-finely crushed ore enters the feed box 6 through the head chute 23 of the bucket elevator 22. The medium material enters the medium addition box 7. Then, they enter the tower mill 9 together. The tower mill 9 grinds the ore to a particle size of P80 = 50-80 microns, thereby achieving material dissociation. The ore is then transported to the grinding product conveying unit through the discharge pipe 15 and connected to the long-distance conveying equipment through the conveying pipe 20 for transportation out of the mine.

[0039] S5. When the grinding work is completed, the hydraulic power device 14 and the control box 13 control the hydraulic push rod 10 to retract, and the grinding portal frame 3 is rotated and laid down by the connecting shaft 12. The grinding portal frame 3 is completely folded back to be flush with the grinding vehicle body 2. The hydraulic push rod 10 is located on both sides of the grinding vehicle body 2. The grinding product conveying unit and the grinding medium adding facility unit 17 are retracted into the storage box, and then the tower mill carrier is pulled to other working mines by the locomotive 1.

[0040] The following examples are implemented under the premise of the technical solution of the present invention, and provide detailed implementation methods and specific operating processes, but the scope of protection of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0041] [Example]

[0042] like Figure 1 As shown, in an open-pit mine, a tower mill carrier is dragged into the mine by a locomotive, and the tower mill carrier is docked and stabilized. The hydraulic push rod 10 is controlled by the hydraulic power device 14 and the control box 13 to stand the grinding portal frame 3 at the tail end of the grinding vehicle body 2. The feeding ore box 6 on the feeding platform 4 of the grinding portal frame 3 faces the head chute 23 of the bucket elevator 22, and the ground anchor 16 is fixed to the ground and firmly connected.

[0043] like Figure 2 As shown, the grinding product conveying unit and the grinding medium adding facility 17 are respectively installed on both sides of the body of the grinding unit by a car crane, the discharge pipe 15 is installed between the discharge end of the tower mill 9 and the conveying stirring tank 18, and the medium adding equipment of the grinding medium adding facility unit 17 is connected and fixed to the medium adding box 7.

[0044] Start the power device, and the ultra-fine crushed ore falls into the feed ore box 6 through the head chute 23 of the bucket elevator 22. The medium material is transported to the medium addition box 7 through the grinding medium addition facility unit 17. The two materials fall into the tower mill 9 at the same time. The ore is ground to the specified particle size by the tower mill 9, and then transported to the conveying stirring tank 18 through the discharge pipe 15. It is pressurized by the conveying pump 19 and transported to the long-distance transportation equipment at the mine through the conveying pipe 20.

[0045] like Figure 3As shown, after use, the hydraulic power unit 14 and the control box 13 control the hydraulic push rod 10 to retract, and the grinding portal frame 3 is completely folded back to be flush with the grinding car body 2. The hydraulic push rod 10 is located on both sides of the grinding car body 2, and the grinding product conveying unit and the grinding medium adding facility unit 17 are hoisted back into the storage box of the locomotive 1, and then the tower mill carrier is pulled to other working mines by the locomotive 1.

[0046] The present invention has low transportation cost during use, good adaptability to terrain, does not require the establishment of traditional fixed factory buildings, reduces capital construction investment, realizes the mobility and reuse of all ore processing facilities, reduces production costs, and improves economic benefits.

Claims

1. A tower mill carrier, characterized in that: It includes a vehicle-mounted unit, a grinding unit, a grinding product conveying unit, and a grinding medium adding facility unit. The vehicle-mounted unit consists of a locomotive and a grinding vehicle body. The locomotive serves as the traction force during the relocation of the tower mill carrier, pulling the grinding vehicle body, on which the grinding unit is installed. The grinding medium adding facility unit and the grinding product conveying unit are arranged on both sides of the grinding vehicle body during operation, and are stored in the storage box of the locomotive during transfer, and are moved to the factory area together with the vehicle-mounted unit. The grinding unit includes a grinding door frame, a tower mill, a feeding ore box, a medium adding box, a hydraulic push rod, a connecting shaft and a discharge pipe. There are two platforms on the grinding door frame. When the grinding door frame is raised, the feeding platform and the base platform are arranged from top to bottom. The foot of the grinding door frame is provided with four ground anchors. The ground anchor size is a circle with a diameter of 500-1000mm, and the anchor rods of the four ground anchors are a fully threaded structure. The tower mill base plate is installed at the bottom of the tower mill, and the tower mill base plate is connected to the base platform. The tower mill is installed on the base platform. The feeding ore box is installed on the feeding ore box above the tower mill. A water supply pipe is installed on the feeding ore box. A medium adding box is installed on one side of the feeding ore box. The top of the box is connected to the head chute of the bucket elevator for transporting concentrate, and the top of the two side plates of the grinding car body is connected to the middle position of the two sides of the grinding portal frame through hydraulic push rods. The hydraulic push rods are controlled by the control box and the hydraulic power device. The hydraulic power device and the control box are installed at the bottom of the grinding car body. The tail of the grinding car body is connected to the connecting shaft on the side column of the grinding portal frame. The hydraulic push rods and the connecting shaft cooperate to act on the grinding portal frame. When working, the grinding portal frame and the tower mill are pushed up to work upright, and are laid down and placed horizontally in the grinding car body during transfer. The discharge pipe is installed at the discharge end of the tower mill. When the tower mill is working, the discharge pipe is connected to the conveying and stirring tank of the grinding product conveying unit; The grinding product conveying unit is composed of a conveying and stirring tank, a conveying pump and a conveying pipeline. The conveying pipeline is connected to the long-distance conveying equipment when working. The conveying and stirring tank is made of steel and has lifting ears on both sides. The tower mill carrier working method is as follows: S1. The locomotive pulls the vehicle-mounted unit, grinding unit, grinding product conveying unit, and grinding media addition facility unit under an operating bucket elevator in the open-pit mine. The vehicle crane lifts the grinding product conveying unit and grinding media addition facility unit from the locomotive's storage box and installs them on both sides of the grinding unit. S2. Use the hydraulic power unit and control box to control the hydraulic push rod to push up the grinding portal frame, rotate the connecting shaft, and erect the grinding portal frame at the rear of the grinding vehicle body. Secure the four ground anchors of the grinding portal frame to the ground, and connect the discharge pipe to the conveying and stirring tank in the grinding product conveying unit. S3. Install the head chute of the bucket elevator above the feed ore box. The bucket elevator transports the ultra-finely crushed ore to be ground. Connect the medium adding box of the grinding unit to the medium adding equipment of the grinding medium adding facility unit. S4. Start the system. The ultra-finely crushed ore to be ground enters the feed box through the head chute of the bucket elevator, and the medium material enters the medium addition box. Then, they enter the tower mill together. The tower mill grinds the ore to a particle size of P80 = 50-80 microns, thereby achieving material dissociation. The ore is then transported to the grinding product conveying unit through the discharge pipe, and then connected to the long-distance conveying equipment through the conveying pipe to be transported out of the mine. S5. When the grinding work is completed, the hydraulic power unit and the control box control the hydraulic push rod to retract, and the grinding portal frame is rotated and laid down through the connecting shaft. The grinding portal frame is completely folded back to be flush with the grinding car body, and the hydraulic push rods are located on both sides of the grinding car body. The grinding product conveying unit and the grinding medium adding facility unit are retracted into the storage box, and then the tower mill carrier is pulled to other working mines by the locomotive.

2. A tower mill carrier according to claim 1, characterized in that: The bucket elevator is installed on the vehicle body of the upper operating carrier unit.

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