Automatic feeding device for sorting diamonds by shaking table

Abstract

The invention belongs to the field of artificial diamonds, and particularly relates to an automatic feeding device for table separation of diamonds. Comprising a shaking table and further comprises a trough communicated with a ball mill, a discharging pipe is arranged at the bottom of the trough and communicated with a pneumatic diaphragm pump, the output end of the pneumatic diaphragm pump is communicated with the shaking table, the pneumatic diaphragm pump is further connected with an air compressor, and a stirring mechanism is arranged on the trough. According to the automatic feeding device for sorting the diamonds through the shaking table, the material groove and the stirring mechanism arranged on the material groove are additionally arranged between an existing spheroidizing machine and the shaking table, uniformity of slurry is guaranteed, conveying of the slurry is completed through the arrangement of the pneumatic diaphragm pump, and therefore it is guaranteed that the feeding speed is controllable, and safety is good; the device is simple in structure, convenient to maintain, high in safety, capable of continuously and automatically running and high in production efficiency.

Description

Technical Field

[0001] The present invention belongs to the field of synthetic diamond, and particularly relates to an automatic feeding device for diamond sorting on a shaking table. Background Art

[0002] Synthetic diamond is artificially synthesized diamond, and its production processes are mainly divided into two categories: high temperature and high pressure method (HPHT) and chemical vapor deposition method (CVD). Among them, the high temperature and high pressure method simulates the high temperature and high pressure environment for the formation of natural diamond (temperature about 1300 - 1600°C, pressure about 5 - 6GPa), so that the carbon source (such as graphite) undergoes a structural transformation and crystallizes into diamond.

[0003] In the prior art, after diamond production, the metal catalyst (such as Fe, Ni, Co) in the synthesis block needs to be dissolved into ions and recovered by electrolysis method, and the remaining materials are a mixture of diamond particles and graphite.

[0004] Then, graphite is removed by physical separation or chemical treatment. Among them, shaking table separation is the most commonly used physical separation method in industrialization at present. Shaking table separation mainly uses a ball mill to grind diamond and graphite into powder, and then, using the density difference between diamond and graphite, on the surface of an inclined vibrating shaking table, graphite floats up and diamond settles by the flushing of water flow.

[0005] The above solution can effectively obtain the required diamond, but in the existing operation, the feeding method on the shaking table is still manual feeding. This operation method has low efficiency and large error in each feeding amount, resulting in unstable processing efficiency and wasting water resources and energy consumption to a certain extent, increasing production costs. Summary of the Invention

[0006] Aiming at the technical problem of unstable feeding existing in the prior art of diamond sorting on a shaking table, the present invention provides an automatic feeding device for diamond sorting on a shaking table with reasonable design, simple structure and capable of effectively realizing automatic quantitative feeding.

[0007] To achieve the above object, the technical solution adopted by the present invention is: the present invention provides an automatic feeding device for diamond sorting on a shaking table, including a shaking table, and further including a material tank communicated with a ball mill. An outlet pipe is arranged at the bottom of the material tank. The outlet pipe is communicated with a pneumatic diaphragm pump. The output end of the pneumatic diaphragm pump is communicated with the shaking table. The pneumatic diaphragm pump is also connected with an air compressor. A stirring mechanism is arranged on the material tank.

[0008] Preferably, the material tank includes a material tank body arranged in a tank shape. An inlet water pipe and a feed pipe are provided at the top of the material tank body. The stirring mechanism includes a motor reducer arranged at the top of the material tank body and a stirring shaft arranged at the output end of the motor reducer. The stirring shaft extends into the material tank body. Stirring rods are also arranged on the stirring shaft. The stirring rods are arranged in a C shape and are evenly distributed in a ring on the side wall of the stirring shaft.

[0009] Preferably, an auxiliary stirring device is further arranged in the material tank body. The auxiliary stirring device includes an annular guide rail arranged in the material tank body and sliders arranged at intervals on the annular guide rail. The annular guide rail is coaxially arranged with the stirring shaft. A connecting pipe is arranged on the slider. A connecting shaft is sleeved in the connecting pipe. The connecting shaft is rotatably arranged in the connecting pipe. One end of the connecting shaft far from the connecting pipe is vertically connected with a connecting rod. A fixed shaft is arranged at one end of the connecting rod far from the connecting shaft. The fixed shaft is arranged at a right angle to the connecting rod. The fixed shaft is parallel to the connecting shaft and is arranged on both sides of the connecting rod. A stirring plate is arranged at one end of the fixed shaft far from the connecting rod. A rotating disk is also sleeved on the stirring shaft. A driving rod is arranged on the side wall of the rotating disk. The fixed shaft passes through the driving rod and the fixed shaft is rotatably sleeved on the driving rod. An adjusting rod is arranged between every two stirring plates. Both ends of the adjusting rod are rotatably arranged at the bottom of the stirring plate.

[0010] Preferably, an auxiliary stirring rod is also sleeved on the stirring shaft. The auxiliary stirring rod is also arranged in a C shape and the width of the auxiliary stirring rod is smaller than that of the stirring rod.

[0011] Preferably, the auxiliary stirring rod is arranged between two adjacent stirring shafts.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are as follows: The present invention provides a shaker sorting diamond automatic feeding device. By adding a material tank and a stirring mechanism arranged on the material tank between the existing nodulizer and the shaker, the uniformity of the slurry is ensured. With the arrangement of the pneumatic diaphragm pump, the conveying of the slurry is completed, so as to ensure that the feeding speed is controllable and the safety is good. In addition, the structure of the present invention is simple, easy to maintain, and has high safety. It can operate continuously and automatically with high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 Schematic structural diagram of the automatic feeding device for diamond sorting on a shaking table provided in Embodiment 1; Figure 2 Schematic structural diagram of the stirring mechanism provided in Embodiment 1; Figure 3 Schematic structural diagram of the stirring mechanism from another angle provided in Embodiment 1; In the above figures, 1. Shaking table; 2. Feed trough; 21. Feed trough body; 211. Feed pipe; 212. Water inlet pipe; 213. Discharge pipe; 22. Stirring mechanism; 221. Motor reducer; 222. Stirring shaft; 223. Stirring rod; 224. Auxiliary stirring rod; 23. Auxiliary stirring device; 231. Ring rail; 232. Slide block; 233. Connecting pipe; 234. Connecting shaft; 235. Connecting rod; 236. Fixed shaft; 237. Stirring plate; 238. Rotary disk; 2381. Driving rod; 239. Adjusting rod; 3. Pneumatic diaphragm pump; 4. Air compressor. Detailed implementation manners

[0015] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0016] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0017] Embodiment 1, as Figures 1 to 3 shown, the purpose of this embodiment is to achieve precise feeding of the shaking table 1, so as to avoid waste of water resources and electric energy caused by inaccurate feeding. At the same time, the use of manpower is reduced and the work efficiency is improved. For this reason, in order to achieve the above object, an automatic feeding device for diamond sorting on the shaking table 1 provided in this embodiment includes a shaking table 1, and the shaking table 1 is a common existing ore sorting shaking table 1. In this embodiment, its structure is not improved, so it will not be described in detail herein.

[0018] Considering the need to avoid waste of water resources, precise control of the feeding amount is required. For this purpose, a feed trough 2 connected to the ball mill is also provided. In this embodiment, the feed trough 2 is made of PP board and has corrosion resistance. The feed trough 2 is used to collect the mixture of diamond and graphite coming out of the nodulizer, and then, it is stirred with water to form a slurry. For this purpose, a stirring mechanism 22 is provided on the feed trough 2 to ensure uniform stirring. An outlet pipe 213 is provided at the bottom of the feed trough 2, and the outlet pipe 213 is connected to a pneumatic diaphragm pump 3. The output end of the pneumatic diaphragm pump 3 is connected to the shaking table 1. In this embodiment, the pneumatic diaphragm pump 3 is also connected to an air compressor 4. The "air compressor 4 + pneumatic diaphragm pump 3" power combination can stably, uniformly, and continuously input the slurry. The slurry then enters the shaking table 1 for sorting, and the circulating water is used to adjust the appropriate pressure and flow rate to dilute the material and wash it onto the shaking table 1, where it is evenly distributed. Based on the different density differences of diamond and graphite powders, material separation is achieved on the shaking table 1.

[0019] To ensure uniform stirring of the slurry, in this embodiment, the feed trough 2 includes a feed trough body 21 arranged in a tank shape. A water inlet pipe 212 and a feed pipe 211 are provided at the top of the feed trough body 21. Of course, corresponding valves are provided on the water inlet pipe 212, the feed pipe 211, and the outlet pipe 213 to ensure the uniformity of each slurry by controlling the ratio of water to material.

[0020] The stirring mechanism 22 includes a motor reducer 221 provided at the top of the feed trough body 21 and a stirring shaft 222 provided at the output end of the motor reducer 221. In this embodiment, the motor reducer 221 is used instead of directly driving the motor, mainly considering that during the stirring of diamond and graphite, if the speed is too fast, there will be a large friction, which will affect the service life of the stirring mechanism 22 and the feed trough body 21. The stirring shaft 222 extends into the feed trough body 21, and a stirring rod 223 is also provided on the stirring shaft 222. At the same time, under the condition of ensuring stirring, in this embodiment, the stirring rod 223 is arranged in a C shape, and the stirring rods 223 are evenly distributed in a ring on the side wall of the stirring shaft 222. The C-shaped stirring rod 223 has a small contact area and small collision with the diamond and graphite powders, so it is not easy to cause friction, thereby improving the service life.

[0021] Similarly, to ensure the stirring effect, in this embodiment, an auxiliary stirring device 23 is further provided in the trough body 21. The auxiliary stirring device 23 includes an annular guide rail 231 provided at the top of the trough body 21 and sliders 232 spaced apart on the annular guide rail 231. The annular guide rail 231 is fixed to the top of the trough body 21, and a total of 6 sliders 232 are provided. This is because the stirring plates 237 need to rotate in pairs. Of course, 4 or 8 can also be set, but 2 cannot be set. Setting 2 will cause interference due to the coaxial setting of the annular guide rail 231 and the stirring shaft 222. The coaxial setting of the annular guide rail 231 and the stirring shaft 222 means that the annular guide rail 231 is sleeved outside the stirring shaft 222 and is coaxial with the stirring shaft 222.

[0022] To control the rotation of the stirring plate 237, a connecting pipe 233 is provided on the slider 232. The connecting pipe 233 is directly fixed to the slider 232 by welding. A connecting shaft 234 is sleeved in the connecting pipe 233. The connecting shaft 234 is rotatably arranged in the connecting pipe 233. Specifically, a bearing is sleeved in the connecting pipe 233, and the connecting shaft 234 is sleeved in the bearing. At the end of the connecting shaft 234 away from the connecting pipe 233, a connecting rod 235 is vertically connected. At the end of the connecting rod 235 away from the connecting shaft 234, a fixed shaft 236 is provided. The fixed shaft 236 is arranged at a right angle to the connecting rod 235. The fixed shaft 236 is parallel to the connecting shaft 234 and is arranged on both sides of the connecting rod 235. In this way, a Z-shaped structure is formed among the connecting shaft 234, the connecting rod 235, and the fixed shaft 236. It should be noted that the fixed shaft 236 is rotatably arranged on the connecting rod 235.

[0023] A stirring plate 237 is provided at the end of the fixed shaft 236 away from the connecting rod 235. The stirring plate 237 is fixedly connected to the fixed shaft 236.

[0024] In this way, under the drive of an external force, the stirring plate 237 can revolve around the annular guide rail 231. To apply the external force, in this embodiment, a rotating disk 238 is further sleeved on the stirring shaft 222. The rotating disk 238 is arranged in a disk shape. A driving rod 2381 is provided on the side wall of the rotating disk 238. The fixed shaft 236 passes through the driving rod 2381 and is rotatably sleeved on the driving rod 2381. That is, a bearing is also sleeved on the driving rod 2381. In this way, when the stirring shaft 222 rotates, the rotating disk 238 is driven to rotate, thereby driving the stirring plate 237 to revolve around the annular guide rail 231.

[0025] In order to realize the automation of the stirring plate 237, in this embodiment, an adjusting rod 239 is arranged between every two stirring plates 237. Both ends of the adjusting rod 239 are rotatably arranged at the bottom of the stirring plate 237. In this way, under the limitation of the adjusting rod 239, the stirring plate 237 is forced to rotate self - sufficiently, thus realizing the self - rotation and revolution of the stirring plate 237. Since the rotation diameter of the stirring plate 237 is larger than that of the stirring shaft 222, the revolution speed of the stirring plate 237 is different from the rotation speed of the stirring rod 223. In this way, not only can the friction of the diamond be reduced, but also different rotation speed regions can be formed within the entire material tank 2. And different rotation speed regions form a speed difference (central high - speed region vs. edge low - speed region), which promotes the shear and convection between fluids. The mass transfer coefficient can be increased by 20% - 30% compared with a single rotation speed, thereby improving the stirring efficiency and the stirring effect, and ensuring the uniformity of the slurry.

[0026] In order to further improve the stirring effect, an auxiliary stirring rod 224 is also sleeved on the stirring shaft 222. The auxiliary stirring rod 224 is also arranged in a C - shape, and the width of the auxiliary stirring rod 224 is set to be smaller than the width of the stirring rod 223. The auxiliary stirring rod 224 is arranged between two adjacent stirring shafts 222. The setting of the auxiliary stirring rod 224 can further increase the flow velocity of the central high - speed region, thereby increasing the speed difference and improving the stirring effect.

[0027] Through the above settings, the automatic feeding of the slurry is effectively realized. At the same time, the uniformity of the slurry is also ensured to meet the stable use of the shaking table 1, ensure the separation effect, and reduce energy consumption and resource waste.

[0028] The above - mentioned is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the relevant art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above - mentioned embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An automatic feeding device for diamond sorting by a shaking table, comprising a shaking table, characterized in that, It further includes a feed trough connected to the ball mill. An outlet pipe is provided at the bottom of the feed trough. The outlet pipe is connected to a pneumatic diaphragm pump. The output end of the pneumatic diaphragm pump is connected to a shaking table. The pneumatic diaphragm pump is also connected to an air compressor. A stirring mechanism is provided on the feed trough.

2. The automatic feeding device for diamond sorting by a shaking table according to claim 1, characterized in that, The feed trough includes a feed trough body arranged in a tank shape. A water inlet pipe and a feed pipe are provided at the top of the feed trough body. The stirring mechanism includes a motor reducer arranged at the top of the feed trough body and a stirring shaft arranged at the output end of the motor reducer. The stirring shaft extends into the feed trough body. Stirring rods are also provided on the stirring shaft. The stirring rods are arranged in a C shape. The stirring rods are evenly distributed in a ring on the side wall of the stirring shaft.

3. The diamond automatic feeding device for table sorting according to claim 2, characterized in that, An auxiliary stirring device is further provided in the feed trough body. The auxiliary stirring device includes an annular guide rail arranged in the feed trough body and sliders arranged at intervals on the annular guide rail. The annular guide rail is coaxially arranged with the stirring shaft. A connecting pipe is provided on the slider. A connecting shaft is sleeved in the connecting pipe. The connecting shaft is rotatably arranged in the connecting pipe. One end of the connecting shaft away from the connecting pipe is vertically connected to a connecting rod. A fixed shaft is provided at one end of the connecting rod away from the connecting shaft. The fixed shaft is arranged at a right angle to the connecting rod. The fixed shaft is parallel to the connecting shaft and is arranged on both sides of the connecting rod. A stirring plate is provided at one end of the fixed shaft away from the connecting rod. A rotating disk is also sleeved on the stirring shaft. A driving rod is provided on the side wall of the rotating disk. The fixed shaft passes through the driving rod and the fixed shaft is rotatably sleeved on the driving rod. An adjusting rod is provided between every two stirring plates. Both ends of the adjusting rod are rotatably arranged at the bottom of the stirring plate.

4. The diamond automatic feeding device for table sorting according to claim 3, characterized in that, An auxiliary stirring rod is also sleeved on the stirring shaft. The auxiliary stirring rod is also arranged in a C shape. The width of the auxiliary stirring rod is smaller than that of the stirring rod.

5. The automatic feeding device for diamond sorting by shaking table according to claim 4, characterized in that, The auxiliary stirring rod is arranged between two adjacent stirring shafts.

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