Device for refining copper in copper-containing sludge

Abstract

The invention provides a device for refining copper in copper-containing sludge. The device comprises a sintering assembly, a cooling assembly arranged at the bottom of the sintering assembly and a crushing assembly arranged at the bottom of the cooling assembly. The sintering assembly comprises a discharging pipeline, an inner barrel arranged on the outer side of the discharging pipeline in a sleeving mode and an outer barrel arranged on the outer side of the inner barrel in a sleeving mode, the inner barrel is divided into a plurality of independent compartments through partition plates, annular grooves are formed in the bottoms of the inner side walls of the compartments, a discharging groove is formed in the discharging pipeline, and a movable plate connected with the driving component is arranged in the discharging groove. A heating piece is arranged between the outer barrel and the inner barrel; the sintering assembly further comprises a feeding pipeline, a gas supply pipeline and a gas outlet pipeline, one ends of the feeding pipeline, the gas supply pipeline and the gas outlet pipeline penetrate through the outer barrel to be communicated with the inner barrel, and the other ends of the feeding pipeline, the gas supply pipeline and the gas outlet pipeline are communicated with the feeding equipment, the gas supply equipment and the gas collection equipment respectively. The invention solves the problem of lack of a device for refining copper in copper-containing sludge, which is high in production efficiency, low in production cost and good in sintering effect, in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of copper-containing sludge treatment, and in particular to a device for refining copper from copper-containing sludge. Background Art

[0002] The resource utilization process of copper-containing sludge includes wet leaching process and pyrometallurgical smelting process. At present, the pyrometallurgical smelting process is the most common in the industry, and the main processes include closed blast furnace smelting process and oxygen-enriched molten pool smelting process. Copper-containing sludge has no fixed form, and it must be sintered before pyrometallurgical smelting. At present, the commonly used pretreatment processes for copper-containing sludge mainly include drying and sintering, and sintering is the main one. The moisture content is reduced to 45%-55% by drying or filtering the copper-containing sludge with a filter press. After that, the dehydrated sludge is mixed with ingredients, that is, the copper-containing sludge and fuel (usually coke powder or coal powder) are mixed and pelletized. The pelletized material is then sent to the sintering device for sintering to obtain sintered blocks, and finally the sintered blocks are sent to the smelting furnace for smelting to obtain the required copper. The sintering pretreatment can burn and decompose the organic matter and sulfur-containing components in the copper-containing sludge, improve the quality of the materials entering the furnace in the smelting process, and then improve the smelting furnace conditions and the quality of the smelted metal products.

[0003] Existing sintering equipment usually includes a transverse sintering device and a longitudinal sintering device, wherein the transverse sintering device usually stacks the materials to be sintered on a conveyor belt, and the conveyor belt transports the sintering materials, and passes through the preheating section, sintering section and cooling section in sequence to complete the sintering to obtain a sintered block. However, the transverse sintering device arranged in this way has a large contact area with the outside world at both ends, and the heat dissipation is fast, which requires a large amount of energy to maintain the temperature of the sintering section, resulting in high energy consumption, that is, high production cost, and it is difficult to collect the waste gas generated by sintering. The longitudinal sintering device is usually a vertically arranged furnace body or barrel body, and the side wall of the barrel body is used for heating and maintaining the temperature. The sintering materials are piled on the transfer table, and the sintering materials are transported by the transfer table so that the sintering materials move from top to bottom, and pass through the preheating section, sintering section and cooling section in sequence. In this sintering method, the upper and lower ends are relatively closed during sintering, and the heat dissipation is slow, which makes the energy required to maintain the temperature of the sintering section relatively small, and the waste gas is easy to collect, so that the sintering method of circulating hot air rising up and cooling down can be adopted, which can make full use of heat and reduce energy consumption. However, during sintering, the current sintering must be completed before the next batch of sintering can be carried out through the transfer table, which has low production efficiency.

[0004] In addition, the sources of copper-containing sludge are very wide, and the production processes are diverse. The moisture content of copper-containing sludge from different manufacturers varies greatly. Even for the same manufacturer, the moisture content after preliminary drying or filtration fluctuates in a large range, resulting in a large difference in moisture content between different batches of copper-containing sludge. In the existing longitudinal and transverse sintering devices, the thickness of the copper-containing sludge sintering process material layer is relatively high and fixed during sintering. When the moisture content of the copper-containing sludge changes greatly, the sintering conditions of each layer of copper-containing sludge are quite different, and the conditions of the copper-containing sludge on the inside and outside of the same layer are also quite different. It is difficult to accurately adjust the sintering effect of each layer according to the conditions in the furnace, which makes the quality of the sintered product unstable and prone to over-burning or under-burning of the sintered blocks. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a device for refining copper from copper-containing sludge, aiming to solve the problem in the prior art of lack of a device for refining copper from copper-containing sludge with high production efficiency, low production cost and good sintering effect.

[0006] According to an embodiment of the present invention, a device for extracting copper from copper-containing sludge comprises a sintering assembly, a cooling assembly arranged at the bottom of the sintering assembly, and a crushing assembly arranged at the bottom of the cooling assembly;

[0007] The sintering assembly comprises a discharge pipe, an inner barrel sleeved on the outside of the discharge pipe and an outer barrel sleeved on the outside of the inner barrel, the inner barrel is divided into a plurality of independent compartments by a plurality of partitions, an annular groove is provided at the bottom of the inner side wall of the compartment, a discharge pipe is provided with a discharge groove adapted to the annular groove so that the compartment is connected with the discharge pipe, a movable plate connected with a driving component is provided in the discharge groove, the driving component is used to control the movement of the movable plate to control the connection and disconnection between each of the compartments and the feed pipe, and a heating element is provided between the outer barrel and the inner barrel;

[0008] The sintering assembly also includes a feed pipe, an air supply pipe and an air outlet pipe. One end of the feed pipe, the air supply pipe and the air outlet pipe passes through the outer barrel and is connected to the inner barrel, and the other end is respectively connected to the feed equipment, the air supply equipment and the air collection equipment.

[0009] In addition, the device for extracting copper from copper-containing sludge according to the above embodiment of the present invention may also have the following additional technical features:

[0010] Furthermore, the feed pipe includes a front section connected to the compartment, a rear section placed on the outside of the outer barrel and connected to the feeding equipment, and a middle section connecting the front section and the rear section, the middle section is located between the inner barrel and the outer barrel, and the spiral disk is arranged on the outside of the inner barrel, and the axis of the front section forms a certain angle with the side wall of the inner barrel.

[0011] Furthermore, the bottom of the discharge pipe is connected to the cooling assembly, the top of the discharge pipe is closed, and a driving device is provided on the top of the discharge pipe, and the driving device is used to drive the discharge pipe to rotate.

[0012] Furthermore, a stirring rod disposed in the compartment extends outward from the outside of the discharge pipe, and a plurality of the stirring rods are evenly distributed on the outside of the discharge pipe.

[0013] Furthermore, the discharge trough is a step trough, the height of the bottom trough portion of the discharge trough is consistent with the annular groove, the depth of the top trough portion of the discharge trough is smaller than the bottom trough portion, the height of the movable block is located between the bottom trough portion and the annular groove, the movable block is adapted to the top trough portion, a connecting groove is provided in the side wall of the discharge pipe, which passes through the bottom of the discharge pipe and is connected to the top trough portion, the movable block is extended with a connecting block adapted to the connecting groove, and the movable block is connected to the driving component through the connecting block, so that the driving component drives the movable block to move up and down in the discharge trough.

[0014] Furthermore, the driving component includes a connecting rod, the connecting rod includes a threaded section, and the connecting block is provided with a threaded hole adapted to the threaded section, and the connecting rod is rotated to enable the connecting block to move up and down along the threaded section.

[0015] Furthermore, the driving component also includes a connecting sleeve mounted on the connecting rod, an inner gear ring arranged on the outer side of the connection, a transmission plate mounted on the connecting sleeve and a telescopic member connected to the transmission plate. A block is extended outward from the outer side of the top of the connecting rod, and a slot adapted to the block is provided inside the connecting sleeve. The connecting sleeve includes a bare rod section and a gear section arranged under the bare rod section. Two limiting ring edges extend outward from the top of the bare rod section. One end of the transmission plate is mounted between the two limiting ring edges. The distance between the bottom of the inner gear ring and the top of the discharge pipe is not less than the height of the gear section. The transmission sleeve is controlled to move up and down by the telescopic member so that the inner gear ring and the gear section are meshed, so that the connecting rod rotates under the rotating belt of the discharge pipe.

[0016] Furthermore, a baffle is provided on the top of the outer barrel to divide the top of the outer barrel into a accommodating space, the bottom of the baffle is connected to the top of the inner barrel, and a accommodating groove is provided in the middle of the baffle so that the top of the discharge pipe is at least partially located in the accommodating groove, the driving component is placed in the accommodating space, and the outer side of the inner gear ring is connected to the side wall of the accommodating groove.

[0017] Furthermore, a connecting shaft extends outward from the top of the discharge pipe, and the connecting shaft is arranged in the accommodating space. A mounting platform extends outward from the outside of the connecting shaft so that the telescopic part is fixed on the mounting platform. The driving device is arranged on the top of the outer barrel, and one end of the transmission rod of the driving device is placed in the accommodating space and connected to the connecting shaft.

[0018] Furthermore, the partition is tilted so that the bottom of the compartment is conical.

[0019] The present invention sintered the copper sludge into sintered blocks by setting a sintering assembly, and then after cooling by a cooling assembly, the blocks were broken into metal blocks of suitable size by a crushing device for subsequent smelting, thereby completing the sintering process. In specific implementation, the spherical copper sludge material enters the compartment of the inner barrel through a feed pipe, and the compartment is heated by a heating element between the outer barrel and the inner barrel, thereby sintering the copper sludge, and oxygen is provided to the compartment through a gas supply pipe to realize the sintering function, and the gas generated by the reaction during the sintering process is collected through a gas outlet pipe, and after the sintering is completed, the sintered blocks are transported to the cooling assembly through a discharge pipe for cooling. Since the inner barrel is divided into multiple compartments, sintering is performed independently through multiple compartments, and the copper sludge to be sintered in a single compartment is very thin, so that the water content difference of the copper sludge at each position in a single compartment is small during sintering, and since there are fewer materials to be sintered in a single compartment, the temperature transfer efficiency between the materials is high, so that the sintering state is relatively close, and when the materials to be sintered in a single compartment reach the required sintering state, the movable plate corresponding to the compartment can be controlled to move separately, so that the sintered blocks in the compartment that have completed sintering are unloaded, while the materials in other compartments that have not completed sintering continue to sinter, so that the sintering state of the materials to be sintered in the independent compartments is close through the layered setting of the inner barrel, and each independent compartment can be unloaded separately according to the sintering state of the materials in each independent compartment, thereby avoiding under-burning or over-burning. In addition, after unloading of a single independent compartment is completed, it can be fed separately through the feeding pipe, thereby realizing the function of continuous sintering, greatly improving production efficiency. In addition, since the sintering assembly is sintered by a heating element arranged between the outer barrel and the inner barrel, and the feeding and unloading are performed separately through each compartment, and thus during a single feeding or unloading, there is less heat exchange with the outside world, and the temperature in the compartment can be well maintained. Moreover, since each compartment is controlled separately, when the temperature in a single compartment decreases due to unloading or loading, the temperature of the adjacent compartment and the outside will cause the temperature in the compartment to start to rise and be maintained within the temperature range, thereby avoiding the need for additional heating to maintain the temperature in the compartment, thereby reducing energy consumption, and the generated waste gas is easy to collect, and can realize a sintering method of circulating hot air rising and heating up and cooling down with the cooling assembly below, thereby saving energy. Furthermore, the present invention solves the problem in the prior art of lacking a device for copper extraction from copper-containing sludge with high production efficiency, low production cost and good sintering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a device for extracting copper from copper-containing sludge in one embodiment of the present invention;

[0021] Figure 2 It is a partial cross-sectional structural schematic diagram of a device for extracting copper from copper-containing sludge in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a device for extracting copper from copper-containing sludge in one embodiment of the present invention, with the outer barrel hidden;

[0023] Figure 4 for Figure 3 A partial enlarged view from another perspective;

[0024] Figure 5 It is a partial schematic diagram of the assembly of the discharge pipe and the driving components;

[0025] Figure 6 for Figure 5 A partial schematic diagram after hiding the activity blocks and connection blocks;

[0026] Figure 7 This is a schematic diagram of the structure of a driving component after the connecting rod is hidden in an embodiment of the present invention.

[0027] Description of main component symbols:

[0028]

[0029] DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] See also Figures 1 to 7, shown is a device for extracting copper from copper-containing sludge in one embodiment of the present invention, comprising a sintering assembly 10, a cooling assembly 20 disposed at the bottom of the sintering assembly 10, and a crushing assembly 30 disposed at the bottom of the cooling assembly 20, wherein:

[0034] The sintering assembly 10 includes a discharge pipe 11, an inner barrel 12 sleeved on the outside of the discharge pipe 11, and an outer barrel 13 sleeved on the outside of the inner barrel 12. The inner barrel 12 is divided into a plurality of independent compartments 122 by a plurality of partitions 121. An annular groove 1221 is provided at the bottom of the inner side wall of the compartment 122. A discharge trough 111 adapted to the annular groove 1221 is provided on the discharge pipe 11 to connect the compartment 122 with the discharge pipe 11. A drive member 14 is connected to the discharge trough 111. The movable plate 112 and the driving component 14 are used to control the movement of the movable plate 112 to control the connection and disconnection between each compartment 122 and the feed pipe 16. A heating element 15 is provided between the outer barrel 13 and the inner barrel 12. The sintering assembly 10 also includes a feed pipe 16, an air supply pipe 17 and an air outlet pipe 18. One end of the feed pipe 16, the air supply pipe 17 and the air outlet pipe 18 pass through the outer barrel 13 and are connected to the inner barrel 12, and the other end is respectively connected to the feeding equipment, the air supply equipment and the air collecting equipment.

[0035] It can be understood that the copper sludge is sintered into sintered blocks by setting the sintering assembly 10, and then the sintered blocks are broken into metal blocks of suitable size by the crushing device after cooling by the cooling assembly 20 for subsequent smelting, thereby completing the sintering process. In the specific implementation, the spherical copper sludge material enters the compartment 122 of the inner barrel 12 through the feed pipe 16, and the compartment 122 is heated by the heating element 15 between the outer barrel 13 and the inner barrel 12, thereby sintering the copper sludge, and oxygen is provided to the compartment 122 through the gas supply pipe 17 to realize the sintering function, and the gas generated by the reaction during the sintering process is collected through the gas outlet pipe 18, and after the sintering is completed, the sintered blocks are transported to the cooling assembly 20 through the discharge pipe 11 for cooling. Since the inner barrel 12 is divided into a plurality of compartments 122, sintering is performed independently through the plurality of compartments 122, and the copper sludge to be sintered in a single compartment 122 is accumulated with a very thin thickness, so that during sintering, the difference in water content of the copper sludge at various positions in a single compartment 122 is relatively small, and since there are fewer materials to be sintered in a single compartment 122, the temperature transfer efficiency between the materials is high, so that the sintering states are relatively close, and when the materials to be sintered in a single compartment 122 reach the desired sintering state, the movable plate 112 corresponding to the compartment 122 can be controlled to move independently, so that the sintered blocks in the compartment 122 that have completed sintering are unloaded, while the materials in other compartments 122 that have not completed sintering continue to be sintered, so that the sintering states of the materials to be sintered in the independent compartments 122 are similar, and each independent compartment 122 can be unloaded separately according to the sintering state of the materials in the independent compartments 122, so as to avoid under-burning or over-burning. In addition, after a single independent compartment 122 is unloaded, it can be fed separately through the feed pipe 16, thereby realizing the function of continuous sintering, greatly improving production efficiency. In addition, since the sintering assembly 10 is sintered by the heating element 15 arranged between the outer barrel 13 and the inner barrel 12, and the feeding and unloading are performed separately through each compartment 122, and thus during a single feeding or unloading, there is less heat exchange with the outside world, and the temperature in the compartment 122 can be well maintained. And since each compartment 122 is controlled separately, when a single compartment 122 lowers the temperature in the compartment 122 due to unloading or loading, the temperature of the adjacent compartment 122 and the outside will cause the temperature in the compartment 122 to start to rise and maintain within the temperature range, thereby avoiding the need for additional heating to maintain the temperature in the compartment 122, thereby reducing energy consumption, and the generated waste gas is easy to collect, and can realize the sintering mode of circulating hot air rising and upper heating and lower cooling with the cooling assembly 20 below, saving energy. Furthermore, the present invention solves the problem in the prior art that there is a lack of a device for extracting copper from copper-containing sludge with high production efficiency, low production cost and good sintering effect.

[0036] It should be noted that, in the specific implementation, the exhaust gas temperature and the pressure state in the compartment 122 can be obtained by the sensor device to judge the sintering condition of the material in the compartment 122, and then control whether the compartment 122 is unloaded. Under normal conditions, due to the layered setting, the heat transfer efficiency between the materials in a single compartment 122 is high, and the feed amount in a single compartment 122 is small relative to the condition where no compartment 122 is set, so the difference in water content between the materials is small, and then the sintering condition in a single compartment 122 is basically the same, but additional conditions may also occur. Therefore, by way of example and not limitation, in some optional embodiments, the gas supply pipeline 17 can be provided with multiple interfaces in the compartment 122, and the heat distribution state in a single compartment 122 can be judged by a thermal imaging device, and then the reaction condition of each material in the compartment 122 can be judged, and additional oxygen is supplied through the interface corresponding to the area with poor reaction condition to improve the reaction effect, and then further ensure the uniform sintering condition of the materials in the compartment 122. In addition, sintering can usually be carried out at sufficient temperature and oxygen, and does not necessarily require open flames for ignition or combustion. According to process requirements, flame nozzles can also be set in the compartment 122 to ignite and burn the material. In addition, when sintering copper-containing sludge from different factories, due to the large difference in water content of copper-containing sludge between different factories, it is necessary to additionally adjust the process parameters, i.e., heating temperature, sintering time, etc., and the device, since each compartment 122 is controlled separately, the sintering condition can be controlled by controlling the material discharge time of each compartment 122, and no additional process parameter adjustment is required.

[0037] In addition, the feed pipe 16 includes a front section connected to the compartment 122, a rear section placed outside the outer barrel 13 and connected to the feeding device, and a middle section connecting the front section and the rear section, the middle section is located between the inner barrel 12 and the outer barrel 13, and the spiral disk is arranged outside the inner barrel 12, and the axis of the front section forms a certain angle with the side wall of the inner barrel 12. In addition, the partition 121 is tilted to make the bottom of the compartment 122 conical. In the specific implementation, by tilting the partition 121, the material can be laid more evenly in the compartment 122 after entering the compartment 122, and the uniform distribution of the material can effectively ensure the consistent sintering conditions between the materials. In addition, by arranging the spiral coil of the feed pipe 16 in the compartment 122 between the outer barrel 13 and the inner barrel 12, the feed pipe 16 forms a preheating section here, and then when the material enters the compartment 122 from the feed pipe 16, it will pass through the preheating section and the sintering section in sequence, and the subsequent sintering effect will be improved by the preheating of the preheating section. The time the material stays in the preheating section can be controlled by the length of the feed pipe 16 and the feeding speed. In addition, by forming a certain angle between the feed pipe 16 and the outer side of the inner barrel 12, when the spherical material enters the compartment 122 through the feed pipe 16, due to a certain speed, it will move toward the inner wall of the compartment 122 at a certain angle, and after contacting the inner wall, it will spiral along the inner wall of the compartment 122 to discharge the material, so that the material can be further evenly stacked in the compartment 122 to improve the subsequent sintering effect.

[0038] Specifically, the bottom of the discharge pipe 11 is connected to the cooling assembly 20, the top of the discharge pipe 11 is closed, and a driving device 40 is provided at the top of the discharge pipe 11, and the driving device 40 is used to drive the discharge pipe 11 to rotate. In the specific implementation, in order to ensure the continuity of the feed pipe 16 and the overall structural strength, the size and length of the discharge trough 111 are limited to a certain extent, and it is not arranged in a ring shape. Therefore, when the compartment 122 is discharged through the discharge trough 111, the material may accumulate on the side of the discharge pipe 11 where the discharge trough 111 is not provided, and the material cannot be discharged normally. Therefore, by providing the driving device 40, the discharge pipe 11 can be rotated, and then when the material is discharged, the material in the compartment 122 can be completely discharged.

[0039] By way of example but not limitation, in some optional embodiments, a stirring rod 113 disposed in the compartment 122 is extended outward from the outside of the discharge pipe 11, and a plurality of stirring rods 113 are evenly distributed on the outside of the discharge pipe 11. By providing the stirring rod 113, when the compartment 122 is fed, the stirring rod 113 can be selected through the discharge pipe 11, so that the material in the compartment 122 is stirred by the stirring rod 113, so that the material in the compartment 122 is evenly spread. In addition, when the compartment 122 is unloaded, the movable plate 112 moves, so that the discharge trough 111 is opened, the discharge pipe 11 rotates, and the stirring rod 113 also stirs the material to speed up the unloading speed of the material and prevent some of the material from accumulating on the back of the discharge pipe 11 where the discharge trough 111 is not provided. In addition, when the material in the compartment 122 is sintered, the stirring rod 113 can also be stirred by the rotation of the discharge pipe 11 to speed up the heat transfer and contact area of ​​the material in the compartment 122, thereby keeping the sintering state in the material consistent. In addition, in some optional embodiments, a gas circuit can be set on the inner wall of the feed pipe 16 and the stirring rod 113. When sintering is performed, the stirring rod 113 can be rotated to a position where the sintering reaction effect is poor by rotating the discharge pipe 11, and additional oxygen is provided to this position through the gas circuit to improve the sintering reaction effect this time, so that the sintering condition of the materials in the compartment 122 is consistent, and the over-burning or under-burning condition is further avoided. In addition, when the material in the compartment 122 is discharged, the material product may be particles and attached to the inner wall of the compartment 122. Then, the gas circuit on the stirring rod 113 can be used to spray air so that the material is separated from the inner wall of the compartment 122 and is sucked away by the outlet pipe 18 or discharged through the outlet pipe 11. The interfaces of the multiple outlet pipes 18 on the compartment 122 can also spray gas to separate the material particles attached to the outlet pipe 11.

[0040] Specifically, the discharge trough 111 is a stepped trough, the height of the bottom trough 1111 of the discharge trough 111 is consistent with the annular groove 1221, the depth of the top trough 1112 of the discharge trough 111 is less than the bottom trough 1111, the height of the movable block is located between the bottom trough 1111 and the annular groove 1221, the movable block is adapted to the top trough 1112, a connecting groove 114 is provided in the side wall of the discharge pipe 11, which penetrates the bottom of the discharge pipe 11 and is connected to the top trough 1112, and the movable block is extended with a connecting block 115 adapted to the connecting groove 114, and the movable block is connected to the driving component 14 through the connecting block 115, so that the driving component 14 drives the movable block to move up and down in the discharge trough 111. By setting the discharge trough 111 as a stepped trough, it is prevented that the material in the discharge pipe 11 is discharged in the pipe, and then in the gap of the discharge trough 111. By adjusting the height between the movable block, the discharge trough 111 and the annular groove 1221, the movable block can completely cover the annular groove 1221 to avoid the material falling during sintering. In addition, by setting the connecting block 115 and the connecting groove 114, the driving component 14 can be set far away from the compartment 122 to control the movement of the movable block, avoiding the influence of the high temperature near the compartment 122 on the driving component 14, so that the driving component 14 has a wider range of options. The driving component 14 is not further limited here, and any device or component that can move the movable block up and down can be used.

[0041] In addition, the driving component 14 includes a connecting rod 141, and the connecting rod 141 includes a threaded section. The connecting block 115 is provided with a threaded hole adapted to the threaded section, and the connecting block 115 is moved up and down along the threaded section by rotating the connecting rod 141. In a specific implementation, the up and down movement of the movable plate 112 can be achieved by rotating the connecting rod 141 through a threaded connection drive, without the need for the connecting rod 141 to move up and down, and thus when the movable plate 112 is moved and controlled, there is no need to provide additional space for the up and down movement of the connecting rod 141, so that the space setting is more compact, thereby effectively reducing the volume of the device.

[0042] Specifically, the driving component 14 also includes a connecting sleeve 142 sleeved on the connecting rod 141, an inner gear ring 143 arranged on the outer side of the connection, a transmission plate 144 sleeved on the connecting sleeve 142, and a telescopic member 145 connected to the transmission plate 144. A block 1411 extends outward from the top of the connecting rod 141. A card slot 1421 adapted to the block 1411 is arranged inside the connecting sleeve 142. The connecting sleeve 142 includes a bare rod section 1422 and a toothed member 143 arranged on the bare rod section 142. 2, the top of the bare rod section 1422 extends outward with two limiting ring edges 1424, one end of the transmission plate 144 is sleeved between the two limiting ring edges 1424, the distance between the bottom of the inner gear ring 143 and the top of the discharge pipe 11 is not less than the height of the gear segment 1423, and the transmission sleeve is controlled to move up and down by the telescopic member 145, so that the inner gear ring 143 and the gear segment 1423 are meshed, so that the connecting rod 141 rotates under the rotation of the discharge pipe 11. Specifically, the connecting sleeve 142 is controlled to move upward by the telescopic member 145, so that the gear segment 1423 is meshed with the inner gear ring 143, and then the connecting rod 141 rotates with the rotation of the discharging pipe 11 and the interaction between the clamping block 1411 and the clamping groove 1421, and the connecting rod 141 rotates while rotating with the discharging pipe 11. Due to the threaded connection between the connecting rod 141 and the connecting block 115, the connecting block 115 drives the movable block to move downward, so that the discharging trough 111 in the required compartment 122 is opened. When the material of the required partition is discharged, the discharging pipe 11 rotates in the opposite direction, so that the movable block is reset, the discharging trough 111 is closed, and then the gear segment 1423 moves downward and no longer meshes with the inner gear ring 143 under the action of the telescopic member 145. Then, by controlling each driving component 14 separately, the opening and closing of different discharging troughs 111 can be controlled. In addition, through the cooperation between the limiting ring edge 1424 and the transmission plate 144, the transmission plate 144 only limits the up and down movement of the connecting rod 141, but does not limit its rotation, and limiting the up and down movement of the connecting rod can limit the up and down movement of the movable plate 112 to ensure that the discharge chute 111 is closed when the material is not discharged. In addition, through the mechanical transmission method, the influence of high temperature on the driving component 14 is avoided, so that the service life of the driving component 14 is longer.

[0043] In addition, a baffle 131 is provided at the top of the outer barrel 13 to divide a receiving space 132 at the top of the outer barrel 13, the bottom of the baffle 131 is connected to the top of the inner barrel 12, and a receiving groove 133 is provided in the middle of the baffle 131, so that the top of the discharge pipe 11 is at least partially located in the receiving groove 133, the driving component 14 is placed in the receiving space 132, and the outer side of the inner gear ring 143 is connected to the side wall of the receiving groove 133. By providing the receiving space 132 and opening the receiving groove 133 in the middle of the baffle 131, the driving component 14 can be arranged in the receiving space 132 and connected to the connecting block 115, thereby preventing the driving component 14 from being too close to the compartment 122 and being affected by high temperature, and protecting it in the outer barrel 13 to avoid damage from external collision.

[0044] Specifically, a connecting shaft 116 extends outward from the top of the discharge pipe 11, and the connecting shaft 116 is arranged in the accommodating space 132. A mounting platform 117 extends outward from the outside of the connecting shaft 116, so that the telescopic member 145 is fixed on the mounting platform 117. A driving device 40 is arranged on the top of the outer barrel 13, and one end of the transmission rod 41 of the driving device 40 is placed in the accommodating space 132 and connected to the connecting shaft 116. In specific implementation, the driving device 40 is connected to the discharge pipe 11 by arranging the connecting shaft 116 to enhance the connection strength between the two. In addition, by arranging the mounting platform 117 on the outside of the connecting shaft 116, the telescopic member 145 can be fixed on a plane instead of on the arc surface on the outside of the connecting shaft, thereby reducing the difficulty of installing the telescopic member 145.

[0045] In summary, the present invention sintered the copper sludge into sintered blocks by setting a sintering assembly 10, and then after cooling through a cooling assembly 20, the blocks were broken into metal blocks of suitable size by a crushing device for subsequent smelting, thereby completing the sintering process. In specific implementation, the spherical copper sludge material enters the compartment 122 of the inner barrel 12 through the feed pipe 16, and the compartment 122 is heated by the heating element 15 between the outer barrel 13 and the inner barrel 12, thereby sintering the copper sludge, and oxygen is provided to the compartment 122 through the gas supply pipe 17 to realize the sintering function, and the gas generated by the reaction during the sintering process is collected through the gas outlet pipe 18, and after the sintering is completed, the sintered blocks are transported to the cooling assembly 20 through the discharge pipe 11 for cooling. Since the inner barrel 12 is divided into a plurality of compartments 122, sintering is performed independently through the plurality of compartments 122, and the copper sludge to be sintered in a single compartment 122 is accumulated with a very thin thickness, so that during sintering, the difference in water content of the copper sludge at various positions in a single compartment 122 is relatively small, and since there are fewer materials to be sintered in a single compartment 122, the temperature transfer efficiency between the materials is high, so that the sintering states are relatively close, and when the materials to be sintered in a single compartment 122 reach the desired sintering state, the movable plate 112 corresponding to the compartment 122 can be controlled to move independently, so that the sintered blocks in the compartment 122 that have completed sintering are unloaded, while the materials in other compartments 122 that have not completed sintering continue to be sintered, so that the sintering states of the materials to be sintered in the independent compartments 122 are similar, and each independent compartment 122 can be unloaded separately according to the sintering state of the materials in the independent compartments 122, so as to avoid under-burning or over-burning. In addition, after a single independent compartment 122 is unloaded, it can be fed separately through the feed pipe 16, thereby realizing the function of continuous sintering, greatly improving production efficiency. In addition, since the sintering assembly 10 is sintered by the heating element 15 arranged between the outer barrel 13 and the inner barrel 12, and the feeding and unloading are performed separately through each compartment 122, and thus during a single feeding or unloading, there is less heat exchange with the outside world, and the temperature in the compartment 122 can be well maintained. And since each compartment 122 is controlled separately, when a single compartment 122 lowers the temperature in the compartment 122 due to unloading or loading, the temperature of the adjacent compartment 122 and the outside will cause the temperature in the compartment 122 to start to rise and maintain within the temperature range, thereby avoiding the need for additional heating to maintain the temperature in the compartment 122, thereby reducing energy consumption, and the generated waste gas is easy to collect, and can realize the sintering mode of circulating hot air rising and upper heating and lower cooling with the cooling assembly 20 below, saving energy. Furthermore, the present invention solves the problem in the prior art that there is a lack of a device for extracting copper from copper-containing sludge with high production efficiency, low production cost and good sintering effect.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A device for extracting copper from copper-containing sludge, characterized in that: It comprises a sintering assembly, a cooling assembly arranged at the bottom of the sintering assembly, and a crushing assembly arranged at the bottom of the cooling assembly; The sintering assembly comprises a discharge pipe, an inner barrel sleeved on the outside of the discharge pipe and an outer barrel sleeved on the outside of the inner barrel, the inner barrel is divided into a plurality of independent compartments by a plurality of partitions, an annular groove is provided at the bottom of the inner side wall of the compartment, a discharge pipe is provided with a discharge groove adapted to the annular groove so that the compartment is connected with the discharge pipe, a movable plate connected with a driving component is provided in the discharge groove, the driving component is used to control the movement of the movable plate to control the connection and disconnection between each of the compartments and the feed pipe, and a heating element is provided between the outer barrel and the inner barrel; The sintering assembly also includes a feed pipe, an air supply pipe and an air outlet pipe. One end of the feed pipe, the air supply pipe and the air outlet pipe passes through the outer barrel and is connected to the inner barrel, and the other end is respectively connected to the feed equipment, the air supply equipment and the air collection equipment.

2. The device for extracting copper from copper-containing sludge according to claim 1, characterized in that: The feed pipe includes a front section connected to the compartment, a rear section placed on the outside of the outer barrel and connected to the feeding device, and a middle section connecting the front section and the rear section, the middle section is located between the inner barrel and the outer barrel, and the spiral disk is arranged on the outside of the inner barrel, and the axis of the front section forms a certain angle with the side wall of the inner barrel.

3. The device for extracting copper from copper-containing sludge according to claim 1, characterized in that: The bottom of the discharge pipe is communicated with the cooling assembly, the top of the discharge pipe is closed, and a driving device is arranged on the top of the discharge pipe, and the driving device is used to drive the discharge pipe to rotate.

4. The device for extracting copper from copper-containing sludge according to claim 3, characterized in that: A stirring rod disposed in the compartment extends outward from the outside of the discharge pipe, and a plurality of the stirring rods are evenly distributed on the outside of the discharge pipe.

5. The device for extracting copper from copper-containing sludge according to claim 3, characterized in that: The discharge trough is a step trough, the height of the bottom trough portion of the discharge trough is consistent with the annular groove, the depth of the top trough portion of the discharge trough is smaller than the bottom trough portion, the height of the movable block is located between the bottom trough portion and the annular groove, the movable block is adapted to the top trough portion, a connecting groove that passes through the bottom of the discharge pipe and is connected to the top trough portion is provided in the side wall of the discharge pipe, a connecting block adapted to the connecting groove is extended to the movable block, and the movable block is connected to the driving component through the connecting block, so that the driving component drives the movable block to move up and down in the discharge trough.

6. The device for extracting copper from copper-containing sludge according to claim 5, characterized in that: The driving component comprises a connecting rod, the connecting rod comprises a threaded section, and the connecting block is provided with a threaded hole adapted to the threaded section. The connecting rod is rotated so that the connecting block moves up and down along the threaded section.

7. The device for extracting copper from copper-containing sludge according to claim 6, characterized in that: The driving component also includes a connecting sleeve mounted on the connecting rod, an inner gear ring arranged on the outer side of the connection, a transmission plate mounted on the connecting sleeve and a telescopic member connected to the transmission plate. A block is extended outward from the outer side of the top of the connecting rod, and a slot adapted to the block is provided inside the connecting sleeve. The connecting sleeve includes a bare rod section and a gear section arranged under the bare rod section. Two limiting ring edges extend outward from the top of the bare rod section. One end of the transmission plate is mounted between the two limiting ring edges. The distance between the bottom of the inner gear ring and the top of the discharge pipe is not less than the height of the gear section. The transmission sleeve is controlled to move up and down by the telescopic member so that the inner gear ring and the gear section are meshed, so that the connecting rod rotates under the rotating belt of the discharge pipe.

8. The device for extracting copper from copper-containing sludge according to claim 7, characterized in that: A baffle is provided on the top of the outer barrel to divide a accommodating space from the top of the outer barrel, the bottom of the baffle is connected to the top of the inner barrel, a accommodating groove is provided in the middle of the baffle, so that the top of the discharge pipe is at least partially located in the accommodating groove, the driving component is placed in the accommodating space, and the outer side of the inner gear ring is connected to the side wall of the accommodating groove.

9. The device for extracting copper from copper-containing sludge according to claim 8, characterized in that: A connecting shaft extends outward from the top of the discharge pipe, and the connecting shaft is arranged in the accommodating space. A mounting platform extends outward from the outside of the connecting shaft so that the telescopic part can be fixed on the mounting platform. The driving device is arranged on the top of the outer barrel, and one end of the transmission rod of the driving device is placed in the accommodating space and connected to the connecting shaft.

10. The device for extracting copper from copper-containing sludge according to claim 1, characterized in that: The partition is arranged to be inclined so that the bottom of the compartment is tapered.

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