Zinc ore raw material low-temperature grinding device

Abstract

The utility model relates to the technical field of grinding devices, and discloses a zinc ore raw material low-temperature grinding device which comprises a bottom plate, a plurality of supporting legs fixedly connected to the bottom plate, a shell fixed to the supporting legs, a rack fixed to the bottom plate, two ends of a cylinder rotationally connected with the rack, and two ends of the cylinder rotationally connected with the rack. A water tank is fixedly connected to the position, located below the shell, of the top of the bottom plate, a mounting base is fixedly connected to the position, located on one side of the water tank, of the top of the bottom plate, a cooler is fixedly mounted on the mounting base, a water pump is fixedly mounted in the water tank, and the output end of the water pump is fixedly connected with a condensation pipe; the condensation pipe extends into the shell and is fixed to the inner wall of the shell in a spiral surrounding mode. The condensation pipe can prevent the temperature of the cylinder body from being too high in the grinding process, and the problem that the quality of zinc calcine is affected due to temperature rise of materials caused by mutual friction of the materials in the low-grade waste zinc ore grinding process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a low temperature grinding device for zinc ore raw materials. BACKGROUND

[0002] Zinc calcine is the product obtained after roasting of zinc ore, which is a brownish micro-particle solid. In order to meet the rapid development of the domestic market for zinc, it is necessary to recycle and produce zinc calcine from low-grade waste zinc ore. The waste zinc ore contains some iron ore, and it is difficult to separate iron from zinc in the process of purifying zinc. Therefore, it is usually necessary to select the zinc ore raw material before calcination in the production stage of zinc calcine to screen out the iron ore, which can improve the quality of the subsequent zinc calcine product and thus reduce the difficulty of subsequent separation of iron impurities.

[0003] Before calcination, the low-grade waste zinc ore needs to be crushed. On the one hand, it can make the calcination more sufficient, and on the other hand, it can fully expose the iron ore. Then, through the magnetic separation process, the iron ore is screened to increase the zinc content in the raw material. The existing ball mill device for ore crushing, such as the ball mill device for zinc concentrate crushing disclosed in the announcement No. CN215586667U, discloses a ball mill device for zinc concentrate crushing, which comprises a bottom plate, two support frames are arranged on one side of the top of the bottom plate, a through hole is formed in the side wall of the support frame, a rolling bearing is arranged in the through hole, a hollow shaft is arranged on the inner wall of the rolling bearing, one end of the two hollow shafts is provided with a same cylinder, an air suction machine, a box and a cloth bag are arranged on the other side of the top of the bottom plate, a first pipeline is arranged on the air suction machine, a rotary joint is arranged on one end of the first pipeline, a second pipeline is arranged on the air outlet of the air suction machine, one end of the second pipeline is communicated with the top of the box, a third pipeline is arranged on the other side of the top of the box, a fourth pipeline is arranged in the box, one end of the fourth pipeline is provided with a return pipe, a connecting rod is arranged on the outer wall of the return pipe, and a plurality of air holes are arranged on the bottom of the return pipe. The device not only realizes the crushing and grinding of the ore, but also realizes the rapid absorption of the dust generated during the crushing, which facilitates the cleanliness of the working environment.

[0004] However, if the device is applied to the grinding of low-grade waste zinc ore, the mutual friction of the materials during the grinding process will cause the temperature of the materials to rise, which will cause the iron ions in the waste zinc ore to easily combine with the zinc ions to form compounds that are difficult to purify, increasing the difficulty of zinc-iron separation. At the same time, the zinc content in the low-grade zinc ore is already low, and after the zinc and iron are combined and screened out, the zinc content in the zinc ore raw material will also be reduced, which will reduce the quality of the zinc calcine.

[0005] To solve the above problems, a low-temperature grinding device for zinc ore raw materials is proposed in this application. CONTENT OF THE UTILITY MODEL

[0006] The utility model intends to provide a zinc ore raw material low temperature grinding device mainly used for solving the problem that the mutual friction of materials in the process of low grade waste zinc ore grinding can cause the temperature of the materials to rise, the iron ions and zinc ions in the waste zinc ore are easy to combine into compounds difficult to purify, and the quality of zinc calcine is affected.

[0007] To solve the above technical problems, the utility model provides the following technical scheme.

[0008] A zinc ore raw material low temperature grinding device, including the bottom plate, a plurality of support legs are fixedly connected on the bottom plate, the support leg is fixed with the shell, the bottom plate is fixed with the rack, the both ends of the cylinder are rotatably connected with the rack, the shell is sleeved on the outer cutting shell inner wall of the cylinder and keeps a distance with the cylinder, the water tank is fixedly connected below the bottom plate on the top of the shell, the mounting seat is fixedly connected on the side of the water tank on the top of the bottom plate, the cooler is fixedly installed on the mounting seat, the water pump is fixedly installed in the inside of the water tank, the output end of the water pump is fixedly connected with the condenser pipe, the condenser pipe extends to the inside of the shell and is spirally fixed on the inner wall of the shell, the end of the condenser pipe away from the water pump extends out of the shell and is fixedly connected with the input end of the cooler, the output end of the cooler is fixedly connected with the connecting pipe, the other end of the connecting pipe is fixedly connected with the water tank and is communicated with the inside of the water tank.

[0009] The utility model has the advantages of the working principle and beneficial effects.

[0010] 1, working principle: compared with the traditional ball mill, the device is sleeved with the shell outside the rotating cylinder, forms a cooling space wrapping the whole cylinder periphery between the shell and the cylinder, and the condenser pipe is laid in the cooling space to cool it, so as to avoid the temperature of the cylinder inside being too high.

[0011] When the device is used, the water pump inside the water tank is started, the water inside the water tank can be sucked into the condenser pipe through the operation of the water pump, so that the water flows in the condenser pipe, which can cool the inside of the ball mill, so as to break the zinc ore raw material, facilitate the subsequent magnetic separation of iron, remove the iron-containing compounds to improve the quality of finished products, and the water in the condenser pipe can be cooled after flowing into the cooler, the water cooled by the cooler can flow into the inside of the water tank through the connecting pipe, when the water in the water tank is insufficient, water can be added to the inside of the water tank through the water inlet pipe, so as to effectively ensure the normal operation of the device.

[0012] Beneficial effects: The device can break the zinc ore raw material during the ball milling process, thereby facilitating the subsequent magnetic separation of iron and removing the iron-containing compounds to improve the quality of the finished product. The condenser inside the shell can cool the inside of the cylinder to prevent the combination of iron and zinc into zinc ferrite during the grinding process, which reduces the efficiency of magnetic separation and the zinc content of zinc calcine, and increases the difficulty of zinc purification. At the same time, the water inside the condenser is cooled by the cooler and flows back to the water tank through the connecting pipe, so that the water in the water tank can be recycled, thereby effectively reducing the waste of water resources.

[0013] In summary, the present scheme solves the problem that the mutual friction of materials during the grinding process of low-grade waste zinc ore can cause the temperature of the materials to rise, causing the iron ions and zinc ions in the waste zinc ore to easily combine into compounds that are difficult to purify, affecting the quality of zinc calcine.

[0014] Preferably, one side of the water tank is fixedly connected with a water inlet pipe communicated with the inside of the water tank; a filter assembly is arranged on the water tank, the filter assembly comprising a box body inserted on the top of the water tank, the water tank being provided with a insertion slot matched with the box body, the box body being provided with a through slot communicated with the water inlet pipe, the inner bottom of the inner wall of the box body being fixedly connected with filter cotton, and the bottom of the box body being provided with a plurality of water-permeable holes.

[0015] In the present scheme, when the water in the water tank is insufficient, the water inlet pipe is connected with a water source, and the valve is opened. Water enters the inside of the box body through the water inlet pipe, and the filter cotton at the bottom of the inner wall of the box body can filter the water. The filtered water flows into the water tank through the water-permeable holes, which can effectively reduce the impurities in the water and prevent the condenser and the cooler from being blocked, thereby effectively ensuring the normal operation of the device.

[0016] Preferably, the top of the box body is fixedly connected with a baffle, and screws are penetrated through the four corners of the baffle, and the screws are threadedly connected with the water tank. When installing the box body, the box body is inserted into the water tank through the insertion slot, and the baffle can better limit the box body. Then, the baffle and the top of the water tank are connected by a plurality of screws, and the installation of the box body is completed. After the screws are removed, the box body can be taken out of the water tank, which can facilitate the cleaning or replacement of the box body by the staff.

[0017] Preferably, the water tank is provided with an observation port, and an observation window is fixedly connected to the inner wall of the observation port. The observation window is transparent. The observation window can be made of tempered glass. Since the transparency of tempered glass is high, the observation window arranged on the water tank can facilitate the observation of the water quantity in the water tank by the staff.

[0018] Preferably, the screw is an embedded hexagonal arrangement, and the upper end surface of the screw is not higher than the top of the baffle. After installation, the upper end surface of the screw is not higher than the top of the baffle, so as not to protrude and cause wear, and the screw is an embedded hexagonal arrangement, which can better rotate during installation and reduce the possibility of sliding angle.

[0019] Preferably, the top of the baffle is fixedly connected with a pull block, and the outer wall of the pull block is sleeved with an anti-skid sleeve. After the screws on the baffle are all disassembled, the box body can be taken out from the inside of the water tank by pulling the pull block upwards, so that the disassembly and assembly of the box body are more convenient, and the friction between the hands and the pull block can be increased through the anti-skid sleeve sleeved on the outer wall of the pull block, so that the hands are effectively prevented from slipping when pulling the pull block.

[0020] Preferably, the corners of the bottom of the box body are all arranged as chamfers. By arranging the corners of the bottom of the box body as chamfers, the box body can be more conveniently inserted into the slot, so that the installation of the box body is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall front view cross-sectional structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the overall side view cross-sectional structure of the utility model;

[0024] Figure 4 It is a schematic diagram of the overall structure of the box body of the utility model;

[0025] Figure 5 It is a schematic diagram of the overall structure of the utility model Figure 3 It is an enlarged structure schematic diagram of A in the utility model.

[0026] In the figure: 1, bottom plate; 2, cylinder; 3, shell; 4, supporting leg; 5, water tank; 6, mounting seat; 7, cooler; 8, water pump; 9, condenser pipe; 10, water inlet pipe; 11, box body; 12, slot; 13, through slot; 14, filter cotton; 15, baffle; 16, screw; 17, observation port; 18, pull block; 19, connecting pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Referring to Figures 1-5 A low-temperature grinding device for zinc ore raw materials, comprising a bottom plate 1, a plurality of supporting legs 4 are fixedly connected to the bottom plate 1, a shell 3 is fixed to the supporting legs 4, a cylinder 2 is rotatably arranged in the shell 3, and the zinc ore raw materials are ground by grinding media in the cylinder; a rack is further arranged on the bottom plate 1, the cylinder 2 is rotatably connected to the rack with both ends of the cylinder 2 extending out of the shell 3, a gear is fixedly connected to the outer circumferential surface of one end of the cylinder 2 extending out of the shell 3, and a driving motor is further installed on the bottom plate 1, a second gear is installed on the driving motor and engaged with the first gear, the first gear is driven to rotate by the rotation of the second gear, so that the cylinder 2 rotates, which is prior art and will not be described in detail here; compared with the existing ball mill, the improvement point of the present scheme is that the shell 3 is sleeved outside the cylinder 2, and the shell 3 is fixed by the supporting legs 4, and a gap is maintained between the shell 3 and the cylinder 2 to form a cooling space.

[0029] As Figure 1 , 2 shown, a water tank 5 is fixedly connected to the top of the bottom plate 1 below the shell 3, an installation seat 6 is fixedly connected to the top of the bottom plate 1 on one side of the water tank 5, and a cooler 7 is fixedly installed on the installation seat 6;

[0030] A water pump 8 is fixedly installed in the water tank 5, the output end of the water pump 8 is fixedly connected with a condenser pipe 9, the condenser pipe 9 extends into the interior of the shell 3, is spirally fixed to the inner wall of the shell 3, and is located in the gap between the cylinder 2 and the shell 3; when the device is in use, the water pump 8 in the water tank 5 is started, water in the water tank 5 is sucked into the condenser pipe 9 through the operation of the water pump 8, so that the water flows in the condenser pipe 9, the air around the outer circumference of the cylinder 2 (i.e. the cooling space) is cooled, the temperature in the cylinder is prevented from being too high, the zinc and iron in the low-grade waste zinc ore raw materials are prevented from being combined, and the separation and purification of zinc is further prevented from being difficult.

[0031] The end of the condenser pipe 9 away from the water pump 8 extends out of the shell 3 and is fixedly connected with the input end of the cooler 7, the output end of the cooler 7 is fixedly connected with a connecting pipe 19, the other end of the connecting pipe 19 is fixedly connected with the water tank 5, and the connecting pipe 19 is in communication with the interior of the water tank 5, the water in the condenser pipe 9 is cooled after flowing into the cooler 7, the water cooled by the cooler 7 can flow into the interior of the water tank 5 through the connecting pipe 19, so that the water in the water tank 5 can be recycled, thereby effectively reducing the waste of water resources.

[0032] One side of the water tank 5 is fixedly connected with the water inlet pipe 10, the water inlet pipe 10 is communicated with the inside of the water tank 5, a valve is fixedly installed on the water inlet pipe 10, an observation port 17 is formed on the water tank 5, and an observation window is fixedly connected to the inner wall of the observation port 17 and is transparent.

[0033] The water tank 5 is provided with a filter assembly, and water can be filtered through the filter assembly, so that the impurities in the water can be effectively prevented from causing the condenser pipe 9 to be blocked, thereby effectively ensuring the normal operation of the device. Figure 3 and Figure 5 As shown in the drawings, the filter assembly comprises a box body 11 which is detachably connected to the top of the water tank 5, and the corners of the bottom of the box body 11 are chamfered; a through slot 13 matched with the water inlet pipe 10 is formed in the box body 11, and filter cotton 14 is fixedly connected to the inner bottom of the inner wall of the box body 11; and a plurality of water-permeable holes are formed in the bottom of the box body 11.

[0034] When the water in the water tank 5 is insufficient, the water inlet pipe 10 is externally connected to a water source, and the valve is opened, so that water can enter the inside of the box body 11 through the water inlet pipe 10, the water can be filtered through the filter cotton 14 on the inner bottom of the inner wall of the box body 11, and the water filtered through the filter cotton 14 can flow into the inside of the water tank 5 through the water-permeable holes, so that the impurities in the water can be effectively prevented from causing the condenser pipe 9 to be blocked, thereby effectively ensuring the normal operation of the device.

[0035] The water tank 5 is provided with an insertion slot 12 matched with the box body 11, the top of the box body 11 is fixedly connected with a baffle 15, the box body 11 is inserted into the inside of the water tank 5 from the insertion slot 12, and the baffle 15 limits the water tank;

[0036] Screws 16 are penetrated through the four corners of the baffle 15, the screws 16 are in threaded connection with the water tank 5, the screws 16 are in embedded hexagonal arrangement, and the upper end surface of the screw 16 is not higher than the top of the baffle 15; a pull block 18 is fixedly connected to the top of the baffle 15, and an anti-skid sleeve is sleeved on the outer wall of the pull block 18.

[0037] When the box body 11 is installed, the box body 11 is inserted into the insertion slot 12 on the water tank 5, the baffle 15 can better limit the box body 11, a plurality of screws 16 are installed on the baffle 15, the installation of the box body 11 is completed, the box body 11 can be taken out from the inside of the water tank 5 after the screws 16 are disassembled, and this can facilitate the cleaning or replacement of the box body 11 by the staff.

[0038] From the above, the specific implementation manner of the utility model is as follows:

[0039] When the device is used, the inside of the barrel 2 is filled with selected grinding medium such as wear-resistant steel ball or tough steel bar, and the zinc ore raw material to be ground is ground together, the water pump 8 inside the water tank 5 is started during the ball milling process of the zinc ore raw material, the water inside the water tank 5 can be sucked into the condenser pipe 9 by the operation of the water pump 8, so that the water flows inside the condenser pipe 9, which can cool the inside of the ball mill, so as to break the zinc ore raw material, facilitate the subsequent magnetic separation of iron, remove the iron-containing compounds to improve the quality of the finished product, the water inside the condenser pipe 9 can be cooled after flowing to the cooler 7, the water inside the condenser pipe 9 is cooled by the cooler 7, and then flows back to the inside of the water tank 5 through the connecting pipe 19, so that the water inside the water tank 5 can be recycled, thereby effectively reducing the waste of water resources, when the staff observes that the water in the water tank 5 is insufficient through the observation window, the water inlet pipe 10 is connected to the water source, the valve is opened, and the water enters the box body 11 inside through the water inlet pipe 10, the water can be filtered through the filter cotton 14 on the inner wall of the box body 11, the water filtered by the filter cotton 14 flows into the water tank 5, which can effectively prevent impurities in the water from causing the condenser pipe 9 to be blocked, thereby effectively ensuring the normal operation of the device.

[0040] The above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A low temperature grinding device for zinc ore feed material comprising a base plate, characterised in that: The bottom plate is fixedly connected with a plurality of supporting legs, the supporting legs are fixedly connected with a shell, the bottom plate is fixedly connected with a rack, the cylinder is rotatably connected with the rack at both ends, the shell is sleeved outside the cylinder and keeps a distance with the inner wall of the shell, a water tank is fixedly connected below the top of the bottom plate in the shell, a mounting seat is fixedly connected on one side of the top of the bottom plate in the water tank, a cooler is fixedly installed on the mounting seat, a water pump is fixedly installed in the water tank, a condenser pipe is fixedly connected with the output end of the water pump, the condenser pipe extends into the shell and is spirally fixed on the inner wall of the shell, one end of the condenser pipe away from the water pump extends out of the shell and is fixedly connected with the input end of the cooler, the output end of the cooler is fixedly connected with a connecting pipe, and the other end of the connecting pipe is fixedly connected with the water tank and is in communication with the inside of the water tank.

2. A low temperature grinding device for zinc ore feedstock according to claim 1, characterized in that: One side of the water tank is fixedly connected with a water inlet pipe in communication with the inside of the water tank; the water tank is provided with a filter assembly, the filter assembly comprises a box body inserted on the top of the water tank, the water tank is provided with a slot matched with the box body, the box body is provided with a through slot in communication with the water inlet pipe, the inner bottom of the inner wall of the box body is fixedly connected with filter cotton, and a plurality of water permeable holes are formed in the bottom of the box body.

3. A low temperature grinding device for zinc ore feedstock according to claim 2, characterized in that: The top of the box body is fixedly connected with a baffle, screws are penetrated through the four corners of the baffle, and the screws are threadedly connected with the water tank.

4. A low temperature grinding device for zinc ore feedstock according to claim 3, characterized in that: An observation hole is formed in the water tank, an observation window is fixedly connected with the inner wall of the observation hole, and the observation window is transparent.

5. A low temperature grinding device for zinc ore feedstock according to claim 4, characterized in that: The screw is an embedded hexagonal structure, and the upper end surface of the screw is not higher than the top of the baffle.

6. A low temperature grinding device for zinc ore feedstock according to claim 5, characterized in that: The top of the baffle is fixedly connected with a pull block, and an anti-skid sleeve is sleeved on the outer wall of the pull block.

7. A low temperature grinding device for zinc ore feedstock according to claim 6, characterized in that: The corners of the bottom of the box body are chamfered.

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