A grinding media delivery and distribution system

Abstract

The utility model discloses a grinding medium conveying and distribution system, including a first horizontal feeding mechanism, a chain hoist, a second horizontal feeding mechanism and a selective unloading mechanism which are sequentially arranged in series. Along the direction of the grinding medium, a plurality of selective unloading mechanisms are arranged on the second horizontal feeding mechanism, and a plurality of unloading mechanisms are independently connected through the plurality of selective unloading mechanisms. Both the first horizontal feeding mechanism and the second horizontal feeding mechanism are guide trough structures with movable chain plates as bottom plates. The utility model can realize smooth and accurate queuing and unloading of grinding media by using a horizontal feeding mechanism with a special structure, a selective unloading mechanism and a unloading mechanism capable of independent multi-directional feeding, and has the advantages of high loading and unloading efficiency, no jamming, no spilling, safe and stable operation, etc. In addition, the utility model also has the characteristics of simple and ingenious overall structure, low design cost, low failure rate and high working efficiency.

Description

Technical Field

[0001] The utility model relates to mineral processing equipment, in particular to a grinding medium conveying and distributing system, belonging to the technical field of mineral processing. Background Art

[0002] For the addition of steel balls to mineral grinding equipment, the current industry mainly uses single ball adding machines, and when adding steel balls to the ball adding machine, it is necessary to lift them by crane. For large and medium-sized ore dressing plants and ore dressing plants with multiple ball mills, there is a large workload of crane lifting, which is cumbersome and fragmented, requires manual monitoring, and has potential safety risks. Although lifting, conveying and distributing steel balls through mechanical equipment can solve the problems of discontinuous ball adding process and the need for manual ball replenishment, it can significantly improve the level of automation and significantly reduce the labor load of adding balls in large and medium-sized ore dressing plants, conforming to the needs of the times of mechanical replacement and automation reduction. However, at present, only a small number of large and medium-sized ore dressing plants and ore dressing plants with multiple ball mills use traditional belt conveyors with plow-type dischargers to convey and distribute steel balls. There are common problems such as ball spilling and high failure rate, and many of them have been decommissioned or dismantled. Occasionally, pipelines and belt conveyors are used as steel ball conveying equipment. Belt conveyors are common for transporting granular ore, but they are not widely used for transporting steel balls. The belt surface of the belt conveyor is usually supported by a roller group with a groove angle of 35°. The roller groups are arranged at a certain distance, usually 1m apart. There are several main problems in transporting steel balls on belt conveyors: a) Steel balls tend to pile up on the belt surface, and the steel balls are round and not stable enough on the belt surface, which can easily cause partial collapse, deviation, and spillage of the belt surface; b) The groove angle of the roller group is 35°, the belt surface is low in the middle and high on both sides, making it difficult to unload the balls; c) When there are many steel balls, the impact on the ball unloading device is greater, resulting in poor durability and reliability. The advantages of pipeline transportation are mainly: economical and low failure rate of non-powered components; its disadvantages are mainly: high noise, and huge workload for cleaning the pipe once it is blocked. Utility Model Content

[0003] In view of the problems of existing grinding media in the prior art, such as ball spillage, high failure rate and heavy workload, the utility model provides a grinding media conveying and distribution system, which can realize smooth and accurate queuing and loading and unloading of grinding media through a horizontal feeding mechanism of a chain trough structure with a single-row material flow, a selective unloading mechanism and a feeding mechanism capable of multi-directional independent feeding, and has the advantages of high loading and unloading efficiency, no material jamming, no material spilling, safe and stable operation, etc.

[0004] In order to achieve the above technical objectives, the technical solutions adopted by the present utility model are specifically described as follows:

[0005] A grinding medium conveying and distributing system, the system comprises a first horizontal feeding mechanism, a chain hoist, a second horizontal feeding mechanism and a selective unloading mechanism. The first horizontal feeding mechanism, the chain hoist and the second horizontal feeding mechanism are arranged in series in sequence. Along the direction of the grinding medium, a plurality of selective unloading mechanisms are arranged on the second horizontal feeding mechanism, and a plurality of unloading mechanisms are independently connected through the plurality of selective unloading mechanisms. The first horizontal feeding mechanism and the second horizontal feeding mechanism have the same structure, both of which are guide trough structures with movable chain plates as bottom plates.

[0006] It should be noted that the movable chain plate refers to a combination of a movable chain and a support plate, that is, a support plate is provided on a movable chain (such as a rotating chain) (the support plate moves with the movement of the chain). When the movable chain plate is used as the bottom plate of the guide trough, the movable chain plate is not connected to the two side plates of the guide trough.

[0007] Preferably, the first horizontal feeding mechanism comprises a supporting plate and a chain horizontal feeder. A plurality of supporting plates are sequentially mounted on the chain horizontal feeder along the length direction of the chain horizontal feeder through independent connecting pieces. A pair of vertical baffle plates are suspended in parallel above both sides of the chain horizontal feeder in the width direction. The spacing between the two vertical baffle plates is 1.1 to 1.7 times the particle size of the grinding medium.

[0008] Preferably, a material discharge buffer plate is provided between the discharge end of the chain elevator and the feed end of the second horizontal feeding mechanism.

[0009] Preferably, in the vertical direction, the spacing between the two vertical baffle plates is the same or the spacing between the two vertical baffle plates gradually decreases from top to bottom; preferably, the minimum spacing between the two vertical baffle plates is 1.1 to 1.3 times the particle size of the grinding medium.

[0010] Preferably, the chain-type horizontal feeder is a rotary structure, including a rotary chain and a rotary sprocket. The rotary chain sequentially surrounds two rotary sprockets arranged at both ends in the horizontal direction to form a closed loop. A support beam and a slide rail for supporting the rotary movement of the rotary chain are also arranged on the inner side of the rotary chain between the two rotary sprockets. The inner side of the rotary chain contacts the top end of the slide rail, and the bottom end of the slide rail contacts the support beam. It should be noted that the support beam does not contact the chain and can be supported by any external support component in the annular area formed by the rotary chain. The chain slides on the slider. The support beam supports the slider.

[0011] Preferably, the chain hoist comprises a hoisting chain, a bottom tension wheel, a top drive wheel and a hook plate. The hoisting chain sequentially surrounds the bottom tension wheel and the top drive wheel from bottom to top to form a closed loop. A plurality of hook plates are vertically arranged on the outside of the hoisting chain and are evenly distributed along the rotation direction of the hoisting chain.

[0012] Preferably, the chain hoist further comprises a first redirecting wheel and a second redirecting wheel. According to the rotation direction of the hoisting chain, the first redirecting wheel is located on the inner side of the hoisting chain upstream of the top driving wheel, and the second redirecting wheel is located on the outer side of the hoisting chain downstream of the top driving wheel. The vertical height of the first redirecting wheel is consistent with the vertical height of the top driving wheel, the vertical height of the second redirecting wheel is lower than the vertical height of the top driving wheel, and in the horizontal direction, the second redirecting wheel is located between the first redirecting wheel and the top driving wheel.

[0013] Preferably, a material transfer plate is provided between the first horizontal feeding mechanism and the chain hoist. The feeding end of the material transfer plate is connected to the discharging end of the first horizontal feeding mechanism, and the discharging end thereof extends downwardly and forms a butt joint with the feeding end of the hook plate of the chain hoist in space.

[0014] Preferably, the discharge end of the material transfer plate is a sawtooth finger structure inclined upward, and the feed end of the hook plate is a sawtooth finger structure staggered with the discharge end of the material transfer plate.

[0015] Preferably, the selective unloading mechanism includes a unloading execution drive and a rotary valve plate. Along the direction of the material, a plurality of unloading ports are provided on the vertical baffle plate of the second horizontal feeding mechanism, and a unloading execution drive is independently provided on the downstream side of each unloading port, and a rotary valve plate is independently hinged at the upstream end of the unloading execution drive, and the unloading execution drive drives the rotation of the rotary valve plate to enable the material to flow out from the corresponding unloading port.

[0016] Preferably, the unloading mechanism includes a feed hopper and a material guide mesh cage. The material guide mesh cage includes a semi-arc frame, axial ribs and a semi-arc protective net. A plurality of axial ribs are distributed along the circumferential direction of the inner surface of the semi-arc frame (preferably evenly distributed), and a plurality of axial ribs extend along the axial direction of the inner surface of the semi-arc frame to form an axial chute. The semi-arc protective net is invertedly arranged above the opening of the semi-arc frame. The feed end of the material guide mesh cage is directly connected to the chain hoist, or the feed end of the material guide mesh cage is connected to the discharge end of the selective unloading mechanism through the feed hopper. The discharge end of the material guide mesh cage is connected to the feed end of the device to be added with the grinding medium.

[0017] Preferably, the material guiding cage is a spiral structure or an optional long dragon structure from top to bottom.

[0018] Preferably, the discharge end of the material guide mesh cage is connected to the feed end of the grinding medium to be added device through an energy dissipation device. The energy dissipation device includes a vertical buffer plate and a bottom buffer plate. The vertical buffer plate is arranged on the side of the bottom buffer plate surface away from the discharge end of the material guide mesh cage. The bottom buffer plate is of inclined design, and its inclination angle is adjustable. A soft buffer layer is arranged on the plate surface of the vertical buffer plate and the bottom buffer plate.

[0019] In the present invention, the first horizontal feeding mechanism with a chain trough structure with a single row of material passing can realize the one-by-one queuing and feeding of grinding media. On the one hand, it can avoid the clogging of grinding media during the feeding stage. On the other hand, the one-by-one queuing and feeding can cooperate with the chain hoist, which is helpful for the one-by-one lifting and unloading of the chain hoist. In addition, the second horizontal feeding mechanism with a chain trough structure with a single row of material passing and the selective unloading mechanism can realize the queuing and unloading of grinding media. While ensuring safe and smooth unloading, it can also ensure accurate feeding of the equipment to be added with grinding media. It should be noted that the second horizontal feeding mechanism combined with multiple selective unloading mechanisms can realize the addition of grinding media to multiple grinding equipment (including but not limited to wet ball mills, dry ball mills, semi-autogenous mills, vertical mills, tower mills, etc.) at different positions, which greatly improves the addition efficiency of grinding media and reduces labor intensity.

[0020] In the utility model, the first horizontal feeding mechanism and the second horizontal feeding mechanism have the same structure, and the difference is that the second horizontal feeding mechanism is provided with a plurality of selective unloading mechanisms for multi-point unloading. Taking the first horizontal feeding mechanism as an example, it mainly includes a supporting plate and a rotary chain-type horizontal feeder. Generally, the rotary chain-type horizontal feeder has two mutually parallel rotating chains, and a plurality of supporting plates are arranged between the two rotating chains. There is a gap between two adjacent supporting plates, but the gap is much smaller than the particle size of the grinding medium. This design can not only make the supporting plate rotate with the rotating chain, but also prevent the grinding medium from falling from the gap. In addition, a pair of vertical baffle plates (not in contact with the supporting plates) are suspended in parallel above both sides of the width direction of the chain-type horizontal feeder, and the purpose is to prevent the grinding medium from rolling down from both sides. The purpose of setting the spacing between the two vertical baffle plates to 1.1 to 1.7 times the particle size of the grinding medium is to allow only one grinding medium to pass through at the same time, thereby achieving the purpose of conveying the grinding media in a queue one by one.

[0021] Furthermore, in a preferred embodiment, the two vertical baffle plates can be arranged in a tapered design in which the distance between the two vertical baffle plates gradually decreases along the material flow direction. This design is conducive to the grinding medium being accurately carried away by the chain elevator at the discharge end, avoiding leakage.

[0022] In the utility model, the chain-type horizontal feeder is a rotary structure, generally including a rotary chain and a rotary sprocket. In order to improve the carrying capacity of the rotary chain and the supporting plate for the grinding medium and avoid the phenomenon of concavity after being loaded, a support beam and a slide rail for supporting the rotary movement of the rotary chain are provided on the inner side of the rotary chain between the two rotary sprockets. When the chain is loaded, it slides on the slide rail and receives the support force from the support beam without being concave.

[0023] In the utility model, the chain hoist is also designed as a rotary structure, and a plurality of hook plates (for hooking up the grinding medium) are arranged on the chain along its rotating direction. The hook plates are upwardly inclined serrated finger structures, which can quickly hook up the grinding medium and prevent the grinding medium from rolling down during the rising process.

[0024] Furthermore, in the chain hoist, the upper end of the chain hoist is designed to be wide at the top and narrow at the bottom through the position design of the two redirecting wheels and the top driving wheel, thereby creating ample space for its unloading, so that the unloading success rate can reach 100%, and the failure rate of the chain hoist is significantly reduced. In addition, a material unloading buffer plate is also provided between the discharge end of the chain hoist and the feed end of the second horizontal feeding mechanism to effectively reduce the unloading potential energy of the grinding medium.

[0025] In the utility model, a material transfer plate having a serrated finger structure which cooperates with the hook plate is provided between the first horizontal feeding mechanism and the chain elevator. It should be noted that the "fingers" of the material transfer plate and the serrated finger ends of the hook plate are relatively staggered, so that the "fingers" of the hook plate can pass through the "finger gaps" of the material transfer plate to smoothly lift up the grinding medium thereon and hook it upwards.

[0026] In the utility model, the selective unloading mechanism includes a unloading execution drive and a rotary valve plate. Along the flow direction of the material, a plurality of unloading ports are opened on the vertical baffle plate of the second horizontal feeding mechanism. A rotary valve plate is provided on each unloading port, and the opening and closing of the unloading port is controlled by the rotation of the rotary valve plate. Generally, when the rotary valve plate is closed, the rotary valve plate completely closes its corresponding unloading port, and the entire rotary valve plate can be regarded as a part of the vertical baffle plate, which plays a role in guiding and preventing the grinding medium from scattering. When the rotary valve plate is opened, the rotary valve plate is completely closed between the two vertical baffle plates (that is, its two ends point to the two vertical baffle plates respectively), which is used to block the passage of the grinding medium and make the grinding medium flow out from the corresponding unloading port instead. At this time, the entire rotary valve plate mainly plays a role in blocking and redirecting the grinding medium.

[0027] In the utility model, the unloading mechanism includes a feed hopper and a material guide mesh cage; the material guide mesh cage includes a semi-arc frame, axial ribs and a semi-arc protective net. The semi-arc frame and the semi-arc protective net together constitute a pipeline-type channel, and the axial ribs extend along the axial direction of the pipeline-type channel, and are mainly arranged on the inner surface of the semi-arc frame (multiple axial ribs are arranged along the circumferential direction). It should be noted that the axial ribs are generally circular wires (or wires with square or other cross-section shapes). The semi-arc frame can be an integral semi-arc groove, or it can be composed of multiple semi-arc wires connected in series at a certain distance through axial ribs. In addition, the semi-arc protective net and the semi-arc frame are detachable and movable links (such as bolts or snap-on connections). In actual working conditions, the semi-arc protective net is not set up along the entire route, and is generally mainly set up at the turning point of the grinding medium's travel route to prevent the grinding medium from scattering due to inertia.

[0028] In the utility model, the material guide mesh cage is a spiral structure or an optional long dragon structure from top to bottom. Generally, the farthest discharge port of the second horizontal feeding mechanism is connected to the material guide mesh cage of the long dragon structure. The long dragon mesh cage is very light, easy and quick to install, simple to adjust, and can be flexibly turned. It can be matched with the end energy dissipation device and is suitable for any site. The discharge port in the middle of the second horizontal feeding mechanism is connected to the material guide mesh cage of the spiral structure. The design of the spiral structure allows the grinding medium to spirally descend smoothly, slowing down the falling impact and being durable. The design of the mesh cage is visible and not completely closed. In case of ball blockage, it is convenient to clear, and it is economical and low in cost.

[0029] In the utility model, an energy dissipation device is also provided at the discharge end of the material guide mesh cage, and the energy dissipation device includes a vertical buffer plate and a bottom buffer plate provided with a soft buffer layer, which can reduce the impact of the grinding medium and improve the stability and safety of material discharge.

[0030] It should be noted that all surfaces of the components of the utility model that are in direct contact with the grinding medium can be lined with a rubber plate buffer layer or a polymer panel to reduce noise. A reasonable design can be made according to actual requirements.

[0031] In the present invention, the shape of the grinding medium includes but is not limited to spherical, cylindrical, rod-shaped, etc. Its material includes but is not limited to steel, ceramic, alloy, bearing steel, stainless steel, carbon steel, copper bearing steel, etc. Its production process is not limited to grinding steel balls, forged steel balls, cast steel balls, etc. It is applicable to all factories that use wet ball mills, dry ball mills, semi-autogenous mills, vertical mills, and tower mills.

[0032] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0033] 1: The chain-type grinding-specific horizontal feeding mechanism of the utility model is light in design and suitable for loading and unloading of steel balls; its bandwidth is very narrow, power consumption is very low, load is small, and service life is long; when conveying grinding media, the noise is small, the safety is high, and there is no leakage.

[0034] 2: The chain hoist of the utility model is light in design and closely cooperates with the chain-type steel ball special horizontal feeding mechanism at the interface to achieve the purpose of continuous lifting and conveying of the grinding media one by one; the chain hoist can be installed vertically or tilted; the multi-gear design can create ample unloading space, and the unloading success rate reaches 100%, which significantly reduces the failure rate of the chain hoist.

[0035] 3: The selective unloading mechanism of the utility model has a 100% success rate in material separation and unloading, and the material separation and unloading is highly accurate, simple to control, and easy to operate.

[0036] 4: The guide cage structure of the material unloading mechanism of the utility model is light, economical, highly visible, easy to repair, quick and easy to install, simple to adjust, and can turn flexibly. It can be matched with the terminal energy dissipation device and is suitable for any site with strong practicality.

[0037] 5: The overall structure of the grinding medium conveying and distribution system of the utility model is simple and ingenious, with low design cost, low failure rate and high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the system of the utility model.

[0039] Figure 2 It is a schematic cross-sectional structure diagram of the first horizontal feeding mechanism of the utility model.

[0040] Figure 3 It is an enlarged schematic diagram of the selective unloading mechanism of the utility model.

[0041] Figure 4 It is an enlarged schematic diagram of the material guiding mesh cage of the utility model.

[0042] Figure 5 It is a structural schematic diagram of the matching relationship between the material transfer support plate and the hook plate of the utility model.

[0043] Figure 6 The utility model is a schematic diagram of the structure of the matching relationship among the chain hoist, the material discharge mechanism and the energy dissipation device.

[0044] Figure numerals: 1: first horizontal feeding mechanism; 101: supporting plate; 102: chain horizontal feeder; 1021: rotary chain; 1022: rotary sprocket; 1023: support beam; 1024: slide rail; 103: connecting piece; 104: vertical baffle plate; 2: chain hoist; 201: lifting chain; 202: bottom tension wheel; 203: top driving wheel; 204: hook plate; 205: first redirection Wheel; 206: second redirecting wheel; 3: second horizontal feeding mechanism; 4: selective unloading mechanism; 401: unloading execution drive; 402: rotary valve plate; 5: unloading mechanism; 501: feeding hopper; 502: material guiding cage; 5021: semi-arc skeleton; 5022: axial rib line; 5023: semi-arc protective net; 6: energy dissipation device; 601: vertical buffer plate; 602: bottom buffer plate; 7: material transfer support plate. DETAILED DESCRIPTION

[0045] The technical solution of the utility model is illustrated below, and the scope of protection requested for the utility model includes but is not limited to the following embodiments.

[0046] A grinding medium conveying and distributing system, the system comprises a first horizontal feeding mechanism 1, a chain hoist 2, a second horizontal feeding mechanism 3 and a selective unloading mechanism 4. The first horizontal feeding mechanism 1, the chain hoist 2 and the second horizontal feeding mechanism 3 are arranged in series in sequence. Along the direction of the grinding medium, a plurality of selective unloading mechanisms 4 are arranged on the second horizontal feeding mechanism 3, and a plurality of unloading mechanisms 5 are independently connected through the plurality of selective unloading mechanisms 4. The first horizontal feeding mechanism 1 and the second horizontal feeding mechanism 3 have the same structure, and both are guide trough structures with movable chain plates as bottom plates.

[0047] Preferably, the first horizontal feeding mechanism 1 comprises a supporting plate 101 and a chain horizontal feeder 102. A plurality of supporting plates 101 are sequentially mounted on the chain horizontal feeder 102 along the length direction of the chain horizontal feeder 102 through independent connecting pieces 103. A pair of vertical baffle plates 104 are suspended in parallel above both sides in the width direction of the chain horizontal feeder 102. The spacing between the two vertical baffle plates 104 is 1.1 to 1.7 times the particle size of the grinding medium.

[0048] Preferably, a material discharge buffer plate is further provided between the discharge end of the chain elevator 2 and the feed end of the second horizontal feeding mechanism 3 .

[0049] Preferably, in the vertical direction, the spacing between the two vertical baffle plates 104 is the same or the spacing between the two vertical baffle plates 104 gradually decreases from top to bottom; preferably, the minimum spacing between the two vertical baffle plates 104 is 1.1 to 1.3 times the particle size of the grinding medium.

[0050] Preferably, the chain-type horizontal feeder 102 is a rotary structure, including a rotary chain 1021 and a rotary sprocket 1022. The rotary chain 1021 sequentially surrounds the two rotary sprockets 1022 arranged at both ends in the horizontal direction to form a closed loop. A support beam 1023 and a slide rail 1024 for supporting the rotary movement of the rotary chain 1021 are also arranged on the inner side of the rotary chain 1021 between the two rotary sprockets 1022. The inner side of the rotary chain 1021 contacts the top end of the slide rail 1024, and the bottom end of the slide rail 1024 contacts the support beam 1023.

[0051] Preferably, the chain hoist 2 comprises a hoisting chain 201, a bottom tension wheel 202, a top driving wheel 203 and a hook plate 204. The hoisting chain 201 sequentially surrounds the bottom tension wheel 202 and the top driving wheel 203 from bottom to top to form a closed loop. A plurality of hook plates 204 are vertically arranged on the outside of the hoisting chain 201 and are evenly distributed along the rotation direction of the hoisting chain 201.

[0052] Preferably, the chain hoist 2 further comprises a first redirecting wheel 205 and a second redirecting wheel 206. According to the rotation direction of the hoisting chain 201, the first redirecting wheel 205 is located on the inner side of the hoisting chain 201 upstream of the top driving wheel 203, and the second redirecting wheel 206 is located on the outer side of the hoisting chain 201 downstream of the top driving wheel 203. The vertical height of the first redirecting wheel 205 is consistent with the vertical height of the top driving wheel 203, the vertical height of the second redirecting wheel 206 is lower than the vertical height of the top driving wheel 203, and in the horizontal direction, the second redirecting wheel 206 is located between the first redirecting wheel 205 and the top driving wheel 203.

[0053] Preferably, a material transfer plate 7 is provided between the first horizontal feeding mechanism 1 and the chain hoist 2. The feeding end of the material transfer plate 7 is connected to the discharging end of the first horizontal feeding mechanism 1, and the discharging end thereof extends downwardly and forms a butt joint with the feeding end of the hook plate 204 of the chain hoist 2 in space.

[0054] Preferably, the discharge end of the material transfer plate 7 is a sawtooth finger structure inclined upward, and the feed end of the hook plate 204 is a sawtooth finger structure staggered with the discharge end of the material transfer plate 7.

[0055] Preferably, the selective unloading mechanism 4 includes a unloading execution drive 401 and a rotary valve plate 402. Along the direction of the material, a plurality of unloading ports are provided on the vertical baffle plate of the second horizontal feeding mechanism 3, and an unloading execution drive 401 is independently provided on the downstream side of each unloading port, and a rotary valve plate 402 is independently hinged at the upstream end of the unloading execution drive 401, and the unloading execution drive 401 drives the rotation of the rotary valve plate 402 to enable the material to flow out from the corresponding unloading port.

[0056] Preferably, the unloading mechanism 5 comprises a feed hopper 501 and a material guide mesh cage 502. The material guide mesh cage 502 comprises a semi-arc frame 5021, axial ribs 5022 and a semi-arc protective net 5023. A plurality of axial ribs 5022 are distributed along the circumferential direction of the inner surface of the semi-arc frame 5021, and a plurality of axial ribs 5022 extend along the axial direction of the inner surface of the semi-arc frame 5021 to form an axial chute. The semi-arc protective net 5023 is invertedly arranged above the opening of the semi-arc frame 5021. The feed end of the material guide mesh cage 502 is directly connected to the chain hoist 2, or the feed end of the material guide mesh cage 502 is connected to the discharge end of the selective unloading mechanism 4 through the feed hopper 501. The discharge end of the material guide mesh cage 502 is connected to the feed end of the device to be added with the grinding medium.

[0057] Preferably, the material guiding cage 502 is a spiral structure or an optional long dragon structure from top to bottom.

[0058] Preferably, the discharge end of the material guide mesh cage 502 is connected to the feed end of the grinding medium to be added device through an energy dissipation device 6. The energy dissipation device 6 includes a vertical buffer plate 601 and a bottom buffer plate 602. The vertical buffer plate 601 is arranged on the side of the bottom buffer plate 602 surface away from the discharge end of the material guide mesh cage 502. The bottom buffer plate 602 is of inclined design, and its inclination angle is adjustable. A soft buffer layer is arranged on the plate surface of the vertical buffer plate 601 and the bottom buffer plate 602.

[0059] Example 1

[0060] like Figure 1-6 As shown, a grinding medium conveying and distribution system includes a first horizontal feeding mechanism 1, a chain elevator 2, a second horizontal feeding mechanism 3 and a selective unloading mechanism 4. The first horizontal feeding mechanism 1, the chain elevator 2, and the second horizontal feeding mechanism 3 are arranged in series in sequence. Along the direction of the grinding medium, a plurality of selective unloading mechanisms 4 are arranged on the second horizontal feeding mechanism 3, and a plurality of unloading mechanisms 5 are independently connected through the plurality of selective unloading mechanisms 4. The first horizontal feeding mechanism 1 and the second horizontal feeding mechanism 3 have the same structure, and both are guide trough structures with movable chain plates as bottom plates.

[0061] Example 2

[0062] Example 1 is repeated, except that the first horizontal feeding mechanism 1 includes a supporting plate 101 and a chain horizontal feeder 102. Several supporting plates 101 are sequentially installed on the chain horizontal feeder 102 along the length direction of the chain horizontal feeder 102 through independent connecting pieces 103. A pair of vertical baffle plates 104 are suspended in parallel above both sides in the width direction of the chain horizontal feeder 102. The spacing between the two vertical baffle plates 104 is 1.3 times the particle size of the material to be conveyed.

[0063] Example 3

[0064] Example 2 is repeated, except that a material discharge buffer plate is further provided between the discharge end of the chain elevator 2 and the feed end of the second horizontal feeding mechanism 3 .

[0065] Example 4

[0066] The third embodiment is repeated, except that the distance between the two vertical material blocking plates 104 is the same in the vertical direction.

[0067] Example 5

[0068] Example 4 is repeated, except that in the vertical direction, the distance between the two vertical baffle plates 104 gradually decreases from top to bottom; the minimum distance between the two vertical baffle plates 104 is 1.2 times the particle size of the grinding medium.

[0069] Example 6

[0070] Repeat Example 5, except that the chain-type horizontal feeder 102 is a rotary structure, including a rotary chain 1021 and a rotary sprocket 1022. The rotary chain 1021 sequentially surrounds the two rotary sprockets 1022 arranged at both ends in the horizontal direction to form a closed loop. A support beam 1023 and a slide rail 1024 for supporting the rotary movement of the rotary chain 1021 are also arranged on the inner side of the rotary chain 1021 between the two rotary sprockets 1022. The inner side of the rotary chain 1021 contacts the top end of the slide rail 1024, and the bottom end of the slide rail 1024 contacts the support beam 1023. The chain slides on the slider. The support beam supports the slider.

[0071] Example 7

[0072] The embodiment 6 is repeated, except that the chain hoist 2 comprises a hoisting chain 201, a bottom tension wheel 202, a top driving wheel 203 and a hook plate 204. The hoisting chain 201 sequentially surrounds the bottom tension wheel 202 and the top driving wheel 203 from bottom to top to form a closed loop. A plurality of hook plates 204 are vertically arranged on the outside of the hoisting chain 201 and are evenly distributed along the rotation direction of the hoisting chain 201.

[0073] Example 8

[0074] Example 7 is repeated, except that the chain hoist 2 further includes a first redirecting wheel 205 and a second redirecting wheel 206. According to the rotation direction of the hoisting chain 201, the first redirecting wheel 205 is located on the inner side of the hoisting chain 201 upstream of the top drive wheel 203, and the second redirecting wheel 206 is located on the outer side of the hoisting chain 201 downstream of the top drive wheel 203. The vertical height of the first redirecting wheel 205 is consistent with the vertical height of the top drive wheel 203, the vertical height of the second redirecting wheel 206 is lower than the vertical height of the top drive wheel 203, and in the horizontal direction, the second redirecting wheel 206 is located between the first redirecting wheel 205 and the top drive wheel 203.

[0075] Example 9

[0076] The embodiment 8 is repeated, except that a feeding support plate 7 is further provided between the first horizontal feeding mechanism 1 and the chain type hoist 2. The feeding end of the feeding support plate 7 is connected to the discharging end of the first horizontal feeding mechanism 1, and the discharging end thereof extends downwardly and forms a butt joint with the feeding end of the hook plate 204 of the chain type hoist 2 in space.

[0077] Example 10

[0078] Example 9 is repeated, except that the discharge end of the material transfer plate 7 is a sawtooth finger structure inclined upward, and the feed end of the hook plate 204 is a sawtooth finger structure staggered with the discharge end of the material transfer plate 7.

[0079] Embodiment 11

[0080] Repeat Example 10, except that the selective unloading mechanism 4 includes a unloading execution drive 401 and a rotary valve plate 402. Along the direction of the material, a plurality of unloading ports are opened on the vertical material baffle plate of the second horizontal feeding mechanism 3, and a unloading execution drive 401 is independently provided on the downstream side of each unloading port, and a rotary valve plate 402 is independently hinged at the upstream end of the unloading execution drive 401, and the unloading execution drive 401 drives the rotation of the rotary valve plate 402 to enable the material to flow out from the corresponding unloading port.

[0081] Example 12

[0082] Repeat Example 11, except that the unloading mechanism 5 includes a feed hopper 501 and a material guide mesh cage 502. The material guide mesh cage 502 includes a semi-arc frame 5021, axial ribs 5022 and a semi-arc protective net 5023. A plurality of axial ribs 5022 are evenly distributed along the circumferential direction of the inner surface of the semi-arc frame 5021, and a plurality of axial ribs 5022 extend along the axial direction of the inner surface of the semi-arc frame 5021 to form an axial chute. The semi-arc protective net 5023 is invertedly arranged above the opening of the semi-arc frame 5021. The feed end of the material guide mesh cage 502 is directly connected to the chain hoist 2. The discharge end of the material guide mesh cage 502 is connected to the feed end of the device to be added with the grinding medium.

[0083] Example 13

[0084] Repeat Example 11, except that the unloading mechanism 5 includes a feed hopper 501 and a material guide cage 502. The material guide cage 502 includes a semi-arc skeleton 5021, axial ribs 5022 and a semi-arc protective net 5023. A plurality of axial ribs 5022 are evenly distributed along the circumferential direction of the inner surface of the semi-arc skeleton 5021, and a plurality of axial ribs 5022 extend along the axial direction of the inner surface of the semi-arc skeleton 5021 to form an axial chute. The semi-arc protective net 5023 is invertedly arranged above the opening of the semi-arc skeleton 5021. The feed end of the material guide cage 502 is connected to the discharge end of the selective unloading mechanism 4 through the feed hopper 501. The discharge end of the material guide cage 502 is connected to the feed end of the device to be added with the grinding medium.

[0085] Embodiment 14

[0086] Example 13 is repeated, except that the material guiding cage 502 has a spiral structure and a long dragon structure from top to bottom.

[0087] Embodiment 15

[0088] Repeat Example 14, except that the discharge end of the material guide cage 502 is connected to the feed end of the grinding medium to be added device through the energy dissipation device 6. The energy dissipation device 6 includes a vertical buffer plate 601 and a bottom buffer plate 602. The vertical buffer plate 601 is arranged on the side of the bottom buffer plate 602 surface away from the discharge end of the material guide cage 502. The bottom buffer plate 602 is of inclined design, and its inclination angle is adjustable. A soft buffer layer is arranged on the plate surface of the vertical buffer plate 601 and the bottom buffer plate 602.

Claims

1. A grinding media delivery and distribution system, characterized in that: The system comprises a first horizontal feeding mechanism (1), a chain-type elevator (2), a second horizontal feeding mechanism (3) and a selective unloading mechanism (4); the first horizontal feeding mechanism (1), the chain-type elevator (2) and the second horizontal feeding mechanism (3) are sequentially arranged in series; along the direction of the grinding medium, a plurality of selective unloading mechanisms (4) are arranged on the second horizontal feeding mechanism (3), and a plurality of unloading mechanisms (5) are independently connected to the plurality of selective unloading mechanisms (4); the first horizontal feeding mechanism (1) and the second horizontal feeding mechanism (3) have the same structure, and both are guide trough structures with a movable chain plate as a bottom plate.

2. The system according to claim 1, characterized in that: The first horizontal feeding mechanism (1) comprises a supporting plate (101) and a chain horizontal feeder (102); a plurality of supporting plates (101) are sequentially mounted on the chain horizontal feeder (102) along the length direction of the chain horizontal feeder (102) via independent connecting pieces (103); a pair of vertical baffle plates (104) are suspended in parallel above both sides in the width direction of the chain horizontal feeder (102); the spacing between the two vertical baffle plates (104) is 1.1 to 1.7 times the particle size of the grinding medium.

3. The system according to claim 2, characterized in that: A material discharge buffer plate is also provided between the discharge end of the chain elevator (2) and the feed end of the second horizontal feeding mechanism (3).

4. The system according to claim 2, characterized in that: In the vertical direction, the distance between the two vertical material blocking plates (104) is the same or the distance between the two vertical material blocking plates (104) gradually decreases from top to bottom.

5. The system according to claim 4, characterized in that: The minimum distance between the two vertical baffle plates (104) is 1.1 to 1.3 times the particle size of the grinding medium.

6. The system according to claim 2, characterized in that: The chain-type horizontal feeder (102) is a rotary structure, comprising a rotary chain (1021) and a rotary sprocket (1022); the rotary chain (1021) sequentially surrounds two rotary sprockets (1022) arranged at both ends in the horizontal direction to form a closed loop; a support beam (1023) and a slide rail (1024) for supporting the rotary movement of the rotary chain (1021) are also arranged on the inner side of the rotary chain (1021) between the two rotary sprockets (1022); the inner side of the rotary chain (1021) contacts the top end of the slide rail (1024), and the bottom end of the slide rail (1024) contacts the support beam (1023).

7. The system according to any one of claims 1 to 6, characterized in that: The chain hoist (2) comprises a hoisting chain (201), a bottom tension wheel (202), a top driving wheel (203) and a hook plate (204); the hoisting chain (201) sequentially surrounds the bottom tension wheel (202) and the top driving wheel (203) from bottom to top to form a closed loop; a plurality of hook plates (204) are vertically arranged on the outside of the hoisting chain (201) and are evenly distributed along the rotation direction of the hoisting chain (201).

8. The system according to claim 7, characterized in that: The chain hoist (2) further comprises a first redirecting wheel (205) and a second redirecting wheel (206); according to the rotation direction of the hoisting chain (201), the first redirecting wheel (205) is located on the inner side of the hoisting chain (201) upstream of the top driving wheel (203), and the second redirecting wheel (206) is located on the outer side of the hoisting chain (201) downstream of the top driving wheel (203); the vertical height of the first redirecting wheel (205) is consistent with the vertical height of the top driving wheel (203), the vertical height of the second redirecting wheel (206) is lower than the vertical height of the top driving wheel (203), and in the horizontal direction, the second redirecting wheel (206) is located between the first redirecting wheel (205) and the top driving wheel (203).

9. The system according to claim 7, characterized in that: A material transfer support plate (7) is also provided between the first horizontal feeding mechanism (1) and the chain elevator (2); the feeding end of the material transfer support plate (7) is connected to the discharging end of the first horizontal feeding mechanism (1), and the discharging end thereof extends downwardly and then forms a connection with the feeding end of the hook plate (204) of the chain elevator (2) in space.

10. The system according to claim 9, characterized in that: The discharge end of the material transfer support plate (7) is a sawtooth finger structure inclined upward, and the feed end of the hook plate (204) is a sawtooth finger structure staggered with the discharge end of the material transfer support plate (7).

11. The system according to any one of claims 1-6, 8-10, characterized in that: The selective unloading mechanism (4) comprises a unloading execution drive (401) and a rotary valve plate (402); along the direction of the material, a plurality of unloading ports are opened on the vertical material baffle plate of the second horizontal feeding mechanism (3); a unloading execution drive (401) is independently arranged on the downstream side of each unloading port, and a rotary valve plate (402) is independently hinged at the upstream end of the unloading execution drive (401); the unloading execution drive (401) drives the rotary valve plate (402) to rotate so that the material can flow out from the corresponding unloading port.

12. The system according to claim 7, characterized in that: The selective unloading mechanism (4) comprises a unloading execution drive (401) and a rotary valve plate (402); along the direction of the material, a plurality of unloading ports are opened on the vertical material baffle plate of the second horizontal feeding mechanism (3); a unloading execution drive (401) is independently arranged on the downstream side of each unloading port, and a rotary valve plate (402) is independently hinged at the upstream end of the unloading execution drive (401); the unloading execution drive (401) drives the rotary valve plate (402) to rotate so that the material can flow out from the corresponding unloading port.

13. The system according to any one of claims 1-6, 8-10, 12, characterized in that: The material discharge mechanism (5) comprises a feed hopper (501) and a material guide mesh cage (502); the material guide mesh cage (502) comprises a semi-arc frame (5021), axial ribs (5022) and a semi-arc protective net (5023); a plurality of axial ribs (5022) are distributed along the circumferential direction of the inner surface of the semi-arc frame (5021), and the plurality of axial ribs (5022) are distributed along the axial direction of the inner surface of the semi-arc frame (5021). The semi-arc-shaped protective net (5023) is invertedly arranged above the opening of the semi-arc-shaped frame (5021); the feed end of the material guide cage (502) is directly connected to the chain elevator (2), or the feed end of the material guide cage (502) is connected to the discharge end of the selective unloading mechanism (4) through the feed hopper (501); the discharge end of the material guide cage (502) is connected to the feed end of the equipment to be added with the grinding medium.

14. The system according to claim 7, characterized in that: The material discharge mechanism (5) comprises a feed hopper (501) and a material guide mesh cage (502); the material guide mesh cage (502) comprises a semi-arc frame (5021), axial ribs (5022) and a semi-arc protective net (5023); a plurality of axial ribs (5022) are distributed along the circumferential direction of the inner surface of the semi-arc frame (5021), and the plurality of axial ribs (5022) are distributed along the axial direction of the inner surface of the semi-arc frame (5021). The semi-arc-shaped protective net (5023) is invertedly arranged above the opening of the semi-arc-shaped frame (5021); the feed end of the material guide cage (502) is directly connected to the chain elevator (2), or the feed end of the material guide cage (502) is connected to the discharge end of the selective unloading mechanism (4) through the feed hopper (501); the discharge end of the material guide cage (502) is connected to the feed end of the equipment to be added with the grinding medium.

15. The system according to claim 11, characterized in that: The material discharge mechanism (5) comprises a feed hopper (501) and a material guide mesh cage (502); the material guide mesh cage (502) comprises a semi-arc frame (5021), axial ribs (5022) and a semi-arc protective net (5023); a plurality of axial ribs (5022) are distributed along the circumferential direction of the inner surface of the semi-arc frame (5021), and the plurality of axial ribs (5022) are distributed along the axial direction of the inner surface of the semi-arc frame (5021). The semi-arc-shaped protective net (5023) is invertedly arranged above the opening of the semi-arc-shaped frame (5021); the feed end of the material guide cage (502) is directly connected to the chain elevator (2), or the feed end of the material guide cage (502) is connected to the discharge end of the selective unloading mechanism (4) through the feed hopper (501); the discharge end of the material guide cage (502) is connected to the feed end of the equipment to be added with the grinding medium.

16. The system according to claim 13, characterized in that: The material guiding cage (502) is a spiral structure or an optional long dragon structure from top to bottom.

17. The system according to claim 14, characterized in that: The material guiding cage (502) is a spiral structure or an optional long dragon structure from top to bottom.

18. The system according to claim 15, characterized in that: The material guiding cage (502) is a spiral structure or an optional long dragon structure from top to bottom.

19. The system according to claim 13, characterized in that: The discharge end of the material guide mesh cage (502) is connected to the feed end of the grinding medium to be added device through an energy dissipation device (6); the energy dissipation device (6) comprises a vertical buffer plate (601) and a bottom buffer plate (602); the vertical buffer plate (601) is arranged on the side of the bottom buffer plate (602) away from the discharge end of the material guide mesh cage (502); the bottom buffer plate (602) is of inclined design, and its inclination angle is adjustable; soft buffer layers are arranged on the plate surfaces of the vertical buffer plate (601) and the bottom buffer plate (602).

20. The system according to any one of claims 14 to 18, characterized in that: The discharge end of the material guide mesh cage (502) is connected to the feed end of the grinding medium to be added device through an energy dissipation device (6); the energy dissipation device (6) comprises a vertical buffer plate (601) and a bottom buffer plate (602); the vertical buffer plate (601) is arranged on the side of the bottom buffer plate (602) away from the discharge end of the material guide mesh cage (502); the bottom buffer plate (602) is of inclined design, and its inclination angle is adjustable; soft buffer layers are arranged on the plate surfaces of the vertical buffer plate (601) and the bottom buffer plate (602).

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