Metal production system

Abstract

The utility model discloses a metal production system. The metal production system comprises a powder preparation production line, a finished product preparation production line and a byproduct recovery production line. The by-product recovery production line comprises a recovery crusher, a screening machine, a cleaning and filter pressing assembly and a drying and calcining assembly which are arranged in sequence, the recovery crusher can obtain and crush slag, the screening machine is used for screening the crushed slag, the cleaning and filter pressing assembly is used for cleaning and filter pressing particles passing through screening, and the drying and calcining assembly is used for drying and calcining the particles passing through screening. The drying and calcining assembly is used for drying and calcining filter residues subjected to filter pressing so as to generate by-product particles; the finished product preparation production line can also obtain and smelt particles which do not pass through the screening machine and by-product particles generated by the drying and calcining assembly. The raw materials are prepared into raw material powder through the powder preparation production line, then the raw material powder is prepared into the finished product through the finished product preparation production line, slag generated in the preparation process can be recycled through the by-product recycling production line to generate by-product particles, the by-product particles can be reused through the finished product preparation production line, and the obtaining rate of metal in the raw materials can be increased.

Description

Technical Field

[0001] This application belongs to the field of metal preparation technology, specifically relating to a metal production system. Background Technology

[0002] Currently, extracting metals from ores typically involves steps such as crushing and smelting. The ore is usually pre-treated by crushing and grinding to achieve a suitable particle size. Subsequently, the ore particles are mixed with a solvent and smelted. The molten metal is then separated from the slag to obtain the metal. In existing metal preparation processes, the slag is usually discarded, but because the slag also contains a significant amount of metal, the metal recovery rate is low. Utility Model Content

[0003] The technical problem to be solved by this application is that the metal recovery rate is low in existing metal preparation processes. In order to solve this technical problem, a metal production system with a high metal recovery rate is provided.

[0004] The technical solution proposed in this application is as follows:

[0005] A metal production system, comprising:

[0006] Powder preparation production line, used to prepare raw materials into raw material powder;

[0007] The finished product preparation line is located downstream of the powder preparation line and is capable of melting raw material powder to generate slag and finished product.

[0008] The by-product recycling production line includes a recycling crusher, a screening machine, a washing and filter press assembly, and a drying and calcining assembly arranged in sequence. The recycling crusher can obtain and crush the molten slag. The screening machine is used to screen the crushed molten slag. The washing and filter press assembly is used to wash and filter the particles that have passed through the screening. The drying and calcining assembly is used to dry and calcinate the filter residue after filtration to generate by-product particles.

[0009] The finished product preparation line can also obtain particles that fail to pass through the screening machine and by-product particles generated by the drying and calcining components.

[0010] Using the aforementioned metal production system, raw materials are processed into raw material powder through a powder preparation line, and then processed into finished products through a finished product preparation line. The slag generated during the preparation process can be recovered through a by-product recycling line to generate by-product particles, which can then be reused through the finished product preparation line. In this way, the metal in the raw materials can be processed into finished products as much as possible, increasing the metal extraction rate from the raw materials.

[0011] Furthermore, the finished product preparation line includes a mixer, a smelting furnace, and a casting furnace. The mixer can acquire and mix raw material powder, by-product particles, and auxiliary materials to form a mixture. The smelting furnace can melt the mixture to generate slag and molten metal. The casting furnace can acquire the molten metal and cast it into a finished product.

[0012] Furthermore, the finished product preparation line also includes a raw material tank, a by-product tank, an auxiliary material tank, and a vacuum feeder. The raw material tank is used to store raw material powder, the by-product tank is used to store by-product granules, the auxiliary material tank is used to store auxiliary materials, and the vacuum feeder is connected to the raw material tank, the by-product tank, the auxiliary material tank, and the mixer.

[0013] Furthermore, the finished product preparation line also includes a weighing module, which can support the raw material tank, the by-product tank and the auxiliary material tank, and weigh the raw material tank, the by-product tank and the auxiliary material tank.

[0014] Furthermore, the finished product preparation line also includes a transfer mechanism, which is located between the smelting furnace and the casting furnace. The transfer mechanism is capable of transferring the product in the smelting furnace to the casting furnace.

[0015] Furthermore, the finished product preparation line also includes a dust removal mechanism, which is connected to the smelting furnace and is used to obtain the flue gas generated by the smelting furnace and remove dust from the flue gas.

[0016] Furthermore, the dust removal mechanism includes a cyclone separator, a bag filter, and an induced draft fan connected in sequence, and the cyclone separator is connected to the smelting furnace;

[0017] The mixer can also collect the powder generated by the cyclone separator and the bag filter.

[0018] Furthermore, the powder preparation production line includes a feeding assembly, a raw material crusher, and a ball mill arranged in sequence. The feeding assembly is used to transport the raw material to the raw material crusher, the raw material crusher is used to crush the raw material, and the ball mill is able to obtain the crushed raw material and grind the raw material into raw material powder.

[0019] Furthermore, the feeding assembly includes a feeder and a belt feeder. The feed end of the belt feeder is provided with a hopper, and the discharge end of the belt feeder is located at the raw material crusher to transport the raw material in the hopper to the raw material crusher. The feeder is used to feed the raw material into the hopper.

[0020] Furthermore, the drying and calcining assembly includes a dryer and a calcining furnace arranged in sequence. The dryer is used to dry the filter residue, and the calcining furnace is used to calcine the dried filter residue.

[0021] 1. The slag after metal smelting can be recycled and processed into by-product particles through the by-product recycling production line, and the finished product preparation production line can reuse the by-product particles to prepare finished products, thereby improving the metal extraction rate from the raw materials and reducing production costs.

[0022] 2. During the finished product preparation process, the weighing module and vacuum feeder work together to precisely control the amount of raw material powder, by-product particles and auxiliary materials conveyed to the mixer, thereby ensuring the melting effect in the melting furnace. Attached Figure Description

[0023] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.

[0024] Figure 1 This is a schematic diagram of the structure of a metal production system provided in an embodiment of this application.

[0025] Label Explanation:

[0026] 100. Powder preparation production line; 110. Raw material crusher; 120. Ball mill; 130. Feeder; 140. Belt conveyor; 150. Silo; 160. Elevator; 170. Powder tank;

[0027] 200. Finished product preparation line; 210. Mixer; 220. Smelting furnace; 230. Casting furnace; 241. Raw material tank; 242. By-product tank; 243. Auxiliary material tank; 244. Weighing module; 250. Vacuum feeder; 260. Transfer mechanism; 270. Dust removal mechanism; 271. Cyclone separator; 272. Bag filter; 273. Exhaust fan;

[0028] 300. By-product recycling production line; 310. Recycling crusher; 320. Screening machine; 330. Cleaning and mixing tank; 340. Filter press; 350. Dryer; 360. Calcination furnace. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] like Figure 1 As shown, one embodiment of this application provides a metal production system, including a powder preparation line 100, a finished product preparation line 200, and a by-product recycling line 300. The powder preparation line 100 is used to prepare raw materials into raw material powder; the finished product preparation line 200 is located downstream of the powder preparation line 100 and can smelt the raw material powder to generate slag and finished products; the by-product recycling line 300 can obtain the slag generated in the finished product preparation line 200 and prepare the slag into by-product particles. Simultaneously, the finished product preparation line 200 can also obtain the by-product particles generated in the by-product recycling line 300, realizing the reuse of the by-product particles to smelt the metal components in the by-product particles into finished products, thereby improving the metal extraction rate from the raw materials.

[0032] Furthermore, the by-product recycling line 300 includes a recycling crusher 310, a screening machine 320, a cleaning and filter press assembly, and a drying and calcining assembly arranged sequentially. The recycling crusher 310 can obtain and crush the molten slag. The screening machine 320 is used to screen the crushed molten slag. Large particles that fail to pass the screening are particles with high metal content and can be directly sent back to the finished product preparation line 200. Small particles that pass the screening are particles with low metal content. The cleaning and filter press assembly cleans and filters the particles that pass the screening. Subsequently, the filter residue after filter pressing is dried and calcined by the drying and calcining assembly to generate by-product particles. The by-product particles generated by calcination are also sent back to the finished product preparation line 200 for smelting and reuse, so as to maximize the metal recovery rate. Optionally, the recycling crusher 310 is a jaw crusher.

[0033] It is understandable that the by-product particles are particles with a high metal content. Therefore, it can be concluded that the particles that failed the screening mentioned above are also by-product particles.

[0034] Using the aforementioned metal production system, raw materials are processed into raw material powder through powder preparation line 100, and then processed into finished products through finished product preparation line 200. The slag generated during the preparation process can be recovered through by-product recycling line 300 to generate by-product particles, which can then be reused through finished product preparation line 200. In this way, the metal in the raw materials can be processed into finished products as much as possible, increasing the metal extraction rate from the raw materials.

[0035] The specific structures of the powder preparation production line 100, the finished product preparation production line 200, and the by-product recycling production line 300 are described below.

[0036] The specific structure of powder preparation production line 100 is as follows:

[0037] In one embodiment, the powder preparation production line 100 includes a feeding assembly, a raw material crusher 110, and a ball mill 120 arranged sequentially. The feeding assembly is used to convey raw materials to the raw material crusher 110, which crushes the raw materials. The ball mill 120 can obtain the crushed raw materials and grind them into raw material powder. Optionally, the raw material crusher 110 is a two-stage hammer crusher.

[0038] Furthermore, the feeding assembly includes a feeder 130 and a belt feeder 140. The feed end of the belt feeder 140 is provided with a hopper 150, and the discharge end of the belt feeder 140 is located at the raw material crusher 110, so as to transport the raw materials in the hopper 150 to the raw material crusher 110; the feeder 130 is used to feed the raw materials into the hopper 150.

[0039] It should be noted that a level gauge can also be installed in the silo 150 to measure the amount of raw material in the material layer. When the amount of raw material is too large, the feeding machine 130 will stop feeding. When the amount of raw material is too small, the feeding machine 130 will add raw material.

[0040] In practical applications, an elevator 160 is also provided between the raw material crusher 110 and the ball mill 120. The elevator 160 can transport the crushed raw material into the ball mill 120. Optionally, the elevator 160 is a bucket elevator 160.

[0041] The specific structure of the finished product preparation production line 200 is as follows:

[0042] In one embodiment, the finished product preparation line 200 includes a mixer 210, a smelting furnace 220, and a casting furnace 230. The mixer 210 acquires and mixes raw material powder, by-product particles, and auxiliary materials to form a mixture; the smelting furnace melts the mixture to generate slag and molten metal; and the casting furnace 230 acquires the molten metal and casts it into a finished product. Simultaneously, the generated slag is conveyed to a recycling crusher 310. Optionally, the smelting furnace 220 is a medium-frequency furnace.

[0043] Furthermore, the finished product preparation line 200 also includes a raw material tank 241, a by-product tank 242, an auxiliary material tank 243, and a vacuum feeder 250. The raw material tank 241 is used to store raw material powder, the by-product tank 242 is used to store by-product granules, and the auxiliary material tank 243 is used to store auxiliary materials. The vacuum feeder 250 is connected to the raw material tank 241, the by-product tank 242, the auxiliary material tank 243, and the mixer 210 to feed the raw material powder, by-product granules, and auxiliary materials into the mixer 210 by vacuum feeding.

[0044] It is understandable that the raw material powder produced by the ball mill 120 and the by-product particles produced by the by-product recycling line 300 can be manually transferred to the raw material tank 241 and the by-product tank 242 respectively. Alternatively, the raw material powder and by-product particles can be transported to the raw material tank 241 and the by-product tank 242 separately via conveyor belts or other methods; no restriction is imposed here. Meanwhile, when feeding materials into the raw material tank 241, the by-product tank 242, and the auxiliary material tank 243, the vacuum feeder 250 is preferably in a non-activated state.

[0045] Additionally, it should be noted that a powder tank 170 can also be installed directly below the ball mill 120, and the raw material powder produced by the ball mill 120 can be directly discharged into the powder tank 170. The vacuum feeder 250 is connected to the powder tank 170.

[0046] In practical applications, the finished product preparation line 200 also includes a weighing module 244. The weighing module 244 is located below the raw material tank 241, the by-product tank 242, and the auxiliary material tank 243. It supports and weighs these tanks during the feeding process, thereby more accurately controlling the amount of material fed to the mixer 210. Optionally, the weighing module 244 can employ multiple weight sensors; that is, weight sensors are installed at the bottom of the raw material tank 241, the by-product tank 242, and the auxiliary material tank 243. This is not a limitation. Similarly, weight sensors can also be installed below the powder tank 170.

[0047] It should be noted that the mixer 210 is an existing mixing mixer, and the mixer 210 and the smelting furnace 220 are connected by a screw conveyor so that the mixture can be transported into the smelting furnace 220 by the screw conveyor.

[0048] In one embodiment, the finished product preparation line 200 further includes a transfer mechanism 260, which is located between the smelting furnace 220 and the casting furnace 230. The transfer mechanism 260 can transfer the product in the smelting furnace 220 to the casting furnace 230. It should be noted that the transfer mechanism 260 includes a crane and a transfer container mounted on the crane. The transfer container collects the molten product in the smelting furnace 220, and then the crane transfers the transfer container to a cooling chamber for cooling. After cooling to a certain degree, the molten metal remains molten, while the slag becomes solid and floats on the molten metal. At this point, the slag is removed and transported to a recycling crusher 310. Subsequently, the transfer container continues to cool in the cooling chamber for a certain period of time, causing the temperature of the molten metal to drop to a preset temperature. Then, the transfer container is transferred to the casting furnace 230, and the molten metal is introduced into the casting furnace 230. The casting furnace 230 reheats the molten metal and performs slag removal treatment before introducing the molten metal into a mold for casting to produce the finished product.

[0049] It should be further explained that, to facilitate the removal of molten slag, a hook can be placed in the transfer container beforehand. After the temperature drops and molten slag forms, the hook can be used to lift the slag directly for removal. In addition, the amount of slag produced in the casting furnace 230 is relatively small and can be further transported to the recycling crusher 310 for recovery; this is not restricted here.

[0050] In one embodiment, the finished product preparation line 200 further includes a dust removal mechanism 270, which is connected to the smelting furnace 220 and is used to collect and remove dust from the flue gas generated by the smelting furnace 220. It should also be noted that the dust particles after flue gas dust removal can be transported to the by-product tank 242 for reuse.

[0051] Furthermore, the dust removal mechanism 270 includes a cyclone separator 271, a bag filter 272, and an induced draft fan 273 connected in sequence. The cyclone separator 271 is connected to the smelting furnace 220, and the induced draft fan 273 guides the flue gas in the smelting furnace 220 through the cyclone separator and the bag filter 272 in sequence, and then discharges it through the induced draft fan 273. The cyclone separator 271 can perform preliminary dust removal on the flue gas, and then the flue gas after preliminary dust removal is transported to the bag filter 272 through a pipeline. The bag filter 272 removes dust from the flue gas again before it is discharged by the induced draft fan 273. The dust particles in the cyclone separator 271 and the bag filter 272 can be transported to the by-product tank 242, and then transported to the mixer 210 through the vacuum feeder 250.

[0052] The specific structure of the by-product recycling production line 300 is as follows:

[0053] In one embodiment, the cleaning and filter press assembly includes a cleaning and stirring vessel 330 and a filter press 340. The cleaning and stirring vessel 330 is used to stir and clean the particles that have passed through the sieve, and the cleaned particles are conveyed to the filter press 340 for filtration. Further, the drying and calcining assembly includes a dryer 350 and a calcining furnace. The dryer 350 is used to dry the filter residue produced by the filter press, and the calcining furnace is used to dry the dried filter residue to generate by-product particles.

[0054] It should be noted that the heat from the dryer 350 can be recovered from the heat of the transfer package in the cooling chamber. For example, a heat exchange structure can be set up between the cooling chamber and the dryer 350, or the filter residue can be directly transferred to the cooling chamber to exchange heat with the transfer package, thereby improving energy utilization and reducing energy costs. It is understood that if the filter residue is directly transported to the cooling chamber to exchange heat with the transfer package, then the dryer 350 in this embodiment is the cooling chamber described in the previous embodiment.

[0055] Alternatively, if heat exchange occurs between the transfer package and the cooling chamber, the transfer package can be placed at the air inlet of the cooling chamber, and the filter residue can be placed at the exhaust outlet of the cooling chamber.

[0056] Based on the specific structures of the powder preparation production line 100, the finished product preparation production line 200, and the by-product recycling production line 300 described above, in order to facilitate understanding of the technical solution of this application, the following is combined with... Figure 1 The process flow of the metal production system in the above embodiments is described as follows:

[0057] For the powder preparation production line 100: The operator loads the raw materials into the feeding machine 130, and then the raw materials are fed into the silo 150 through the feeding machine 130. The belt conveyor 140 conveys the raw materials in the silo 150 to the raw material crusher 110. After crushing by the raw material crusher 110, the crushed raw materials are conveyed to the ball mill 120 through the elevator 160. The ball mill 120 grinds the raw materials into raw material powder, and the raw material powder is conveyed into the raw material tank 241.

[0058] For the finished product preparation line 200: the vacuum feeder 250 conveys a preset amount of raw material powder, by-product particles, and auxiliary materials to the mixer 210 for mixing. The mixture in the mixer 210 is then conveyed to the smelting furnace 220 for smelting via a screw conveyor. The flue gas generated during smelting is discharged sequentially through a cyclone separator 271, a bag filter 272, and an induced draft fan 273. Dust particles from the cyclone separator 271 and the bag filter 272 are returned to the by-product tank 242 for recovery. The product in the smelting furnace 220 is fed into a transfer container. The transfer container first enters a cooling chamber, and after cooling for a period of time, the slag in the transfer container is transferred to the by-product recovery line 300. After further cooling for a period of time, the molten metal in the transfer container is poured into the casting furnace 230. The molten metal continues to be heated in the casting furnace 230, and after slag removal, it is poured into a mold to form an alloy ingot (finished product).

[0059] For the by-product recycling line 300: molten slag is conveyed to the recycling crusher 310 for crushing. The crushed slag is then conveyed by a screw conveyor to the screening machine 320. Large particles that do not pass through the screening machine 320 have a high metal content and are considered by-product particles, which are directly conveyed back to the by-product tank 242. Small particles that pass through the screening machine 320 are conveyed to the washing and stirring tank 330. After washing, the particles are conveyed to the filter press 340 for filtration. The filter residue after filtration is conveyed to the cooling room for heat exchange and drying with the transfer container. The dried filter residue is then calcined in a calcining furnace to generate by-product particles.

[0060] It should be noted that, in order to achieve automated operation of the metal production system, a control mechanism can be set up, which is electrically connected to the powder preparation production line 100, the finished product preparation production line 200, and the by-product recycling production line 300.

[0061] In summary, the metal production system provided in this application has at least the following advantages:

[0062] 1. The slag after metal smelting can be recycled and processed into by-product particles through by-product recycling line 300, and the finished product preparation line 200 can reuse the by-product particles to prepare finished products, thereby improving the metal extraction rate from the raw materials and reducing production costs.

[0063] 2. During the finished product preparation process, the weighing module 244 and the vacuum feeder 250 work together to precisely control the amount of raw material powder, by-product particles and auxiliary materials conveyed to the mixer 210, thereby ensuring the melting effect in the melting furnace 220.

[0064] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal production system, characterized in that, include: Powder preparation production line, used to prepare raw materials into raw material powder; The finished product preparation line is located downstream of the powder preparation line and is capable of melting raw material powder to generate slag and finished product. The by-product recycling production line includes a recycling crusher, a screening machine, a washing and filter press assembly, and a drying and calcining assembly arranged in sequence. The recycling crusher can obtain and crush the molten slag. The screening machine is used to screen the crushed molten slag. The washing and filter press assembly is used to wash and filter the particles that have passed through the screening. The drying and calcining assembly is used to dry and calcinate the filter residue after filtration to generate by-product particles. The finished product preparation line can also obtain particles that fail to pass through the screening machine and by-product particles generated by the drying and calcining components.

2. The metal production system according to claim 1, characterized in that, The finished product preparation line includes a mixer, a smelting furnace, and a casting furnace. The mixer can acquire and mix raw material powder, by-product particles, and auxiliary materials to form a mixture. The smelting furnace can melt the mixture to generate slag and molten metal. The casting furnace can acquire the molten metal and cast it into a finished product.

3. The metal production system according to claim 2, characterized in that, The finished product preparation line also includes a raw material tank, a by-product tank, an auxiliary material tank, and a vacuum feeder. The raw material tank is used to store raw material powder, the by-product tank is used to store by-product granules, the auxiliary material tank is used to store auxiliary materials, and the vacuum feeder is connected to the raw material tank, the by-product tank, the auxiliary material tank, and the mixer.

4. The metal production system according to claim 3, characterized in that, The finished product preparation line also includes a weighing module, which can support the raw material tank, the by-product tank and the auxiliary material tank, and weigh the raw material tank, the by-product tank and the auxiliary material tank.

5. The metal production system according to claim 2, characterized in that, The finished product preparation line also includes a transfer mechanism, which is located between the smelting furnace and the casting furnace. The transfer mechanism is capable of transferring the product in the smelting furnace to the casting furnace.

6. The metal production system according to claim 2, characterized in that, The finished product preparation line also includes a dust removal mechanism, which is connected to the smelting furnace and is used to obtain the flue gas generated by the smelting furnace and remove dust from the flue gas.

7. The metal production system according to claim 6, characterized in that, The dust removal mechanism includes a cyclone separator, a bag filter, and an induced draft fan connected in sequence, and the cyclone separator is connected to the smelting furnace; The mixer can also collect the powder generated by the cyclone separator and the bag filter.

8. The metal production system according to claim 1, characterized in that, The powder preparation production line includes a feeding assembly, a raw material crusher, and a ball mill arranged in sequence. The feeding assembly is used to transport the raw material to the raw material crusher, the raw material crusher is used to crush the raw material, and the ball mill is able to obtain the crushed raw material and grind the raw material into raw material powder.

9. The metal production system according to claim 8, characterized in that, The feeding assembly includes a feeder and a belt feeder. The feed end of the belt feeder is equipped with a hopper, and the discharge end of the belt feeder is located at the raw material crusher to transport the raw materials in the hopper to the raw material crusher. The feeder is used to feed the raw materials into the hopper.

10. The metal production system according to claim 1, characterized in that, The drying and calcining assembly includes a dryer and a calcining furnace arranged in sequence. The dryer is used to dry the filter residue, and the calcining furnace is used to calcine the dried filter residue.

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