An apparatus for copper extraction from copper-containing sludge

Abstract

The application provides a device for copper extraction from copper-containing sludge, which 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 pipeline, an inner barrel arranged outside the discharge pipeline and an outer barrel arranged outside the inner barrel, the inner barrel is divided into multiple independent compartments by a partition plate, an annular groove is arranged at the bottom of the inner side wall of the compartment, a discharge groove is arranged on the discharge pipeline, a movable plate connected with a driving part is arranged in the discharge groove, and a heating part 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 discharge pipeline, the feeding pipeline, the gas supply pipeline and the gas discharge pipeline are communicated with the outer barrel and the inner barrel at one end and are communicated with a feeding device, a gas supply device and a gas collecting device at the other end. The application solves the problem of lacking a device for copper extraction from copper-containing sludge with high production efficiency, low production cost and good sintering effect in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of copper-containing sludge treatment, and particularly relates to a device for extracting copper from copper-containing sludge. BACKGROUND

[0002] The copper-containing sludge resource utilization process includes a wet leaching process and a pyrometallurgical process. At present, the pyrometallurgical process is dominant in the industry, and the main process includes a closed blast furnace smelting process and an oxygen-enriched smelting process. The copper-containing sludge has no fixed form, and it must be pretreated by sintering before pyrometallurgical smelting. The common pretreatment process for copper-containing sludge at present mainly includes drying and sintering, and sintering is dominant. The copper-containing sludge is dried or pressed by a filter press to reduce the water content to 45%-55%. Then the dewatered sludge is mixed and proportioned, that is, the copper-containing sludge and fuel (usually coke powder or coal powder) are mixed to form a ball. The ball-formed material is sent into a sintering device to be sintered to obtain sintered blocks, and finally the sintered blocks are sent into a smelting furnace for smelting to obtain the required copper. The sintering pretreatment can make the organic matter and sulfur components in the copper-containing sludge burn and decompose, improve the quality of the material into the smelting link, and thus improve the smelting furnace condition and improve the quality of the smelted metal product.

[0003] The existing sintering equipment usually includes a transverse sintering device and a longitudinal sintering device. The transverse sintering device usually has the sintering material stacked on a conveying belt, the sintering material is transported by the conveying belt, and sequentially passes through a preheating section, a sintering section and a cooling section to complete sintering to obtain sintered blocks. However, the transverse sintering device has a large contact area with the outside 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 and high production cost. In addition, it is difficult to collect the waste gas generated by sintering. The longitudinal sintering device usually has a vertically arranged furnace body or barrel body, the side wall of the barrel body is used for heating and maintaining the temperature, and the sintering material is stacked on a transfer table and transported by the transfer table to move from top to bottom, sequentially passing through a preheating section, a sintering section and a cooling section. In this way, the upper and lower ends are relatively closed during sintering, the heat dissipation is slow, and the energy required to maintain the temperature of the sintering section is relatively small. In addition, the waste gas is easy to collect, so that the sintering method of circulating hot air rising and cooling down can be adopted, which can fully utilize the heat and reduce the energy consumption. However, the sintering needs to be completed before the next batch of sintering is carried out by the transfer table, which has low production efficiency.

[0004] In addition, the copper-containing sludge is from a wide range of sources and is produced by various processes, and the moisture content of the copper-containing sludge from different manufacturers is quite different. Even the same manufacturer, due to the moisture content of the preliminary drying or pressure filtration in a large range, the moisture content of different batches of copper-containing sludge is still quite different. The existing longitudinal and transverse sintering devices have a high and fixed sintering process layer thickness of the copper-containing sludge when sintering. When the moisture content of the copper-containing sludge changes greatly, the sintering conditions of each layer of the copper-containing sludge are greatly different, and the copper-containing sludge conditions inside and outside the same layer are also greatly different. It is difficult to accurately adjust the sintering effect of each layer according to the conditions in the furnace, thereby causing the sintering product quality to be unstable, and the sintering block is prone to overburning or underburning. SUMMARY

[0005] Therefore, the present application aims to provide a device for copper extraction from copper-containing sludge, which aims to solve the problem of lacking a device for copper extraction from copper-containing sludge with high production efficiency, low production cost and good sintering effect in the prior art.

[0006] According to an embodiment of the present application, a device for copper extraction 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 arranged outside the discharge pipe, and an outer barrel arranged outside the inner barrel. The inner barrel is divided into multiple independent compartments by multiple partitions. An annular groove is arranged at the bottom of the inner side wall of the compartment. A discharge groove is arranged on the discharge pipe and matched with the annular groove to communicate the compartment with the discharge pipe. A movable plate connected with a driving part is arranged in the discharge groove. The driving part is used to control the movement of the movable plate to control the on-off between each compartment and the discharge pipe. A heating element is arranged between the outer barrel and the inner barrel.

[0008] The sintering assembly further comprises a feeding pipe, a gas supply pipe and a gas discharge pipe. The feeding pipe, the gas supply pipe and the gas discharge pipe are communicated with the inner barrel through the outer barrel at one end and communicated with the feeding device, the gas supply device and the gas collecting device at the other end, respectively.

[0009] In addition, the device for copper extraction from copper-containing sludge according to the above-mentioned embodiments of the present application can further have the following additional technical features.

[0010] Further, the feeding pipe comprises a front section communicated with the compartment, a rear section connected with the feeding device outside the outer barrel, and a middle section communicated with the front section and the rear section. The middle section is located between the inner barrel and the outer barrel, and a spiral disc is arranged outside the inner barrel. The axis of the front section is at a certain angle with the side wall of the inner barrel.

[0011] Further, the bottom of the discharge pipe is communicated with the cooling assembly, the top of the discharge pipe is closed, and the top of the discharge pipe is provided with a driving device for driving the rotation of the discharge pipe.

[0012] Further, the outside of the discharge pipe extends outwardly with stirring rods arranged in the compartment, and a plurality of the stirring rods are uniformly distributed on the outside of the discharge pipe.

[0013] Further, the discharge slot is a stepped slot, the height of the bottom slot part of the discharge slot is consistent with the annular slot, the depth of the top slot part of the discharge slot is smaller than that of the bottom slot part, the height of the movable block is between the bottom slot part and the annular slot, the movable block is adapted to the top slot part, a connecting slot is arranged in the side wall of the discharge pipe and communicated with the top slot part and penetrating through the bottom of the discharge pipe, the movable block extends outwardly with a connecting block adapted to the connecting slot, and the movable block is connected with the driving part through the connecting block, so that the driving part drives the movable block to move up and down in the discharge slot.

[0014] Further, the driving part comprises a connecting rod, the connecting rod comprises a threaded segment, the connecting block is provided with a threaded hole adapted to the threaded segment, and the connecting rod is rotated to drive the connecting block to move up and down along the threaded segment.

[0015] Further, the driving part further comprises a connecting sleeve sleeved on the connecting rod, an internal gear ring arranged outside the connecting rod, a transmission plate sleeved on the connecting sleeve, and a telescopic part connected with the transmission plate, the connecting rod extends outwardly with a clamping block at the top, the connecting sleeve is internally provided with a clamping groove adapted to the clamping block, the connecting sleeve comprises a polished rod segment and a gear segment arranged below the polished rod segment, the polished rod segment extends outwardly with two limiting ring edges at the top, the transmission plate is sleeved between the two limiting ring edges at one end, the distance between the bottom of the internal gear ring and the top of the discharge pipe is not less than the height of the gear segment, the internal gear ring and the gear segment are engaged by controlling the transmission sleeve to move up and down through the telescopic part, so that the connecting rod rotates under the rotation of the discharge pipe.

[0016] Further, the top of the outer barrel is provided with a baffle to divide the top of the outer barrel into a containing space, the bottom of the baffle is connected with the top of the inner barrel, the middle part of the baffle is provided with a containing slot, so that the top of the discharge pipe is at least partially located in the containing slot, the driving part is arranged in the containing space, and the outside of the internal gear ring is connected with the side wall of the containing slot.

[0017] Further, the top of the discharge pipe extends outwardly with a connecting shaft, which is arranged in the accommodating space, and an installation table extends outwardly outside the connecting shaft, so that the telescopic part is fixed on the installation table, and the top of the outer barrel is provided with the driving device, and the transmission rod of the driving device is connected with the connecting shaft.

[0018] Further, the partition plate is arranged obliquely so that the bottom of the compartment is conical.

[0019] The present application, by setting the sintering assembly, sintering copper sludge into sintered block, and then cooling through the cooling assembly, and then crushing into metal block of appropriate size through the crushing device for subsequent smelting, and then completing the sintering process. In specific implementation, the spherical copper sludge material enters the compartment of the inner barrel through the feeding pipe, the heating element between the outer barrel and the inner barrel heats the compartment, and then the copper sludge is sintered, and oxygen is provided to the compartment through the gas supply pipe to realize the sintering function, and the gas generated during the sintering process is collected through the gas outlet pipe, and after the sintering is completed, the sintered block is transported to the cooling assembly through the discharge pipe for cooling. Since the inner barrel is divided into multiple compartments, sintering is independently carried out in multiple compartments, and then the thickness of the copper sludge to be sintered in a single compartment is very thin, and then the water content of the copper sludge at each position in a single compartment during sintering is less different, and since the amount of material to be sintered in a single compartment is less, the temperature transfer efficiency between the materials is high, so the sintering state is relatively close, and then when the material to be sintered in a single compartment reaches the required sintering condition, the corresponding movable plate of the compartment can be controlled to move to discharge the sintered sintered block in the compartment, while the material in other compartments that has not completed sintering continues to sinter, so that the sintering state of the material to be sintered in the independent compartment is close, and each independent compartment can be discharged separately according to the sintering condition of the material in each independent compartment, thereby avoiding under-sintering or over-sintering. In addition, after a single independent compartment is discharged, it can be individually fed through the feeding pipe, thereby realizing continuous sintering and greatly improving production efficiency. In addition, since the sintering assembly is sintered by the heating element arranged between the outer barrel and the inner barrel, and the feeding and discharging are carried out separately in each compartment, the temperature exchange with the outside is less during single feeding or discharging, and the temperature in the compartment can be well maintained. Since each compartment is controlled independently, when the temperature in a single compartment decreases due to discharging or feeding, the temperature in the adjacent compartment and the outside will cause the temperature in the compartment to start to rise and maintain within the temperature range, thereby avoiding the need for additional heating to maintain the temperature in the compartment, thereby reducing energy consumption. The waste gas is easy to collect, and can realize the sintering mode of circulating hot air rising and cooling down with the lower cooling assembly, thereby saving energy. Therefore, the present application solves the problem of lacking a device for copper extraction from copper-containing sludge with high production efficiency, low production cost and good sintering effect in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure of the device for copper extraction from copper-containing sludge in an embodiment of the present application is shown in the figure.

[0021] Figure 2 The partial cross-sectional structure of the device for copper extraction from copper-containing sludge in an embodiment of the present application is shown in the figure.

[0022] Figure 3 Structure diagram of the device for copper extraction from copper-containing sludge in one embodiment of the present application, with the outer barrel hidden;

[0023] Figure 4 For Figure 3 Partial enlarged view from another perspective;

[0024] Figure 5 Partial diagram of the assembled discharge pipe and driving component;

[0025] Figure 6 For Figure 5 Partial diagram of the hidden movable block and connecting block;

[0026] Figure 7 Structure diagram of the driving component in one embodiment of the present application, with the connecting rod hidden.

[0027] Explanation of main element symbols:

[0028]

[0029] DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The drawings show several embodiments of the present application. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present application is more thorough and complete.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be a middle element. 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 commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments and is not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Please refer to Figures 1 to 7The device for copper refining from copper-containing sludge shown in the figure is an embodiment of the present application, which comprises a sintering assembly 10, a cooling assembly 20 arranged at the bottom of the sintering assembly 10, and a crushing assembly 30 arranged at the bottom of the cooling assembly 20, wherein:

[0034] The sintering assembly 10 comprises a discharge pipe 11, an inner barrel 12 sleeved outside the discharge pipe 11, and an outer barrel 13 sleeved outside the inner barrel 12, the inner barrel 12 is divided into multiple independent compartments 122 by multiple partitions 121, the inner side wall of the compartment 122 is provided with an annular groove 1221 at the bottom, the discharge pipe 11 is provided with a discharge groove 111 matched with the annular groove 1221, so that the compartment 122 is in communication with the discharge pipe 11, the discharge groove 111 is provided with a movable plate 112 connected with a driving part 14, the driving part 14 is used for controlling the movement of the movable plate 112, so as to control the on-off between each compartment 122 and the feeding pipe 16, the outer barrel 13 and the inner barrel 12 are provided with a heating part 15; the sintering assembly 10 further comprises a feeding pipe 16, a gas supply pipe 17 and a gas discharge pipe 18, the feeding pipe 16, the gas supply pipe 17 and the gas discharge pipe 18 are all communicated with the inner barrel 12 through the outer barrel 13 at one end, and communicated with a feeding device, a gas supply device and a gas collecting device at the other end.

[0035] It can be understood that by setting the sintering assembly 10 to sinter the copper sludge into sintered blocks, and then cooling through the cooling assembly 20, and then crushing into metal blocks of appropriate size through the 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 feeding pipe 16, the heating element 15 between the outer barrel 13 and the inner barrel 12 heats the compartment 122, thereby sintering the copper sludge, and the compartment 122 is provided with oxygen through the gas supply pipe 17 to realize the sintering function, and the gas generated 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 multiple compartments 122, sintering is independently carried out in multiple compartments 122, thereby the thickness of the copper sludge to be sintered in a single compartment 122 is very thin, thereby the water content of the copper sludge at each position in a single compartment 122 during sintering is less different, and since the amount of material to be sintered in a single compartment 122 is less, the temperature transfer efficiency between the materials is high, thereby the sintering state is relatively close, and when the material to be sintered in a single compartment 122 reaches the required sintering state, the corresponding movable plate 112 of the compartment 122 can be controlled to move to discharge the sintered blocks in the compartment 122, while the material in other compartments 122 that has not completed sintering continues to sinter, thereby through the layered arrangement of the inner barrel 12, the sintering state of the material to be sintered in the independent compartments 122 is close, the material in each independent compartment 122 can be discharged individually according to the sintering state of the material in each independent compartment 122, thereby avoiding under-sintering or over-sintering. In addition, after a single independent compartment 122 is discharged, it can be recharged through the feeding pipe 16, thereby realizing continuous sintering and greatly improving production efficiency. In addition, since the sintering assembly 10 is sintered through the heating element 15 arranged between the outer barrel 13 and the inner barrel 12, and the feeding and discharging are carried out individually in each compartment 122, thereby during single feeding or discharging, heat exchange with the outside is less, the temperature in the compartment 122 can be well maintained, and since each compartment 122 is controlled individually, when the temperature in a single compartment 122 decreases due to discharging or feeding, the temperature in the adjacent compartment 122 and the outside will cause the temperature in the compartment 122 to rise and be maintained within a temperature range, thereby avoiding the need for additional heating to maintain the temperature in the compartment 122, thereby reducing energy consumption, and the waste gas is easy to collect, can realize the sintering mode of circulating hot air rising and cold air descending with the lower cooling assembly 20, thereby saving energy. Therefore, the present application solves the problem of lacking a device for copper extraction from copper-containing sludge with high production efficiency, low production cost and good sintering effect in the prior art.

[0036] It should be noted that in the actual implementation, the sintering condition of the materials in the compartment 122 can be determined by the temperature of the exhaust gas and the pressure state in the compartment 122, and then the discharge of the compartment 122 can be controlled. Under normal circumstances, due to the layered arrangement, the heat transfer efficiency between the materials in a single compartment 122 is high, and the amount of material in a single compartment 122 is relatively small compared to the condition of the compartment 122, so the difference in water content between the materials is small, and the sintering condition in a single compartment 122 is basically consistent. However, additional conditions may also occur. Therefore, by way of example and not limitation, in some optional embodiments, the gas supply pipe 17 can be provided with multiple interfaces in the compartment 122, and the heat distribution state in a single compartment 122 can be determined by a thermal imaging device, and then the reaction condition of each material in the compartment 122 can be determined, and additional oxygen can be supplied through the interface corresponding to the area with poor reaction condition to improve the reaction effect, thereby further ensuring the consistency of the sintering condition of the materials in the compartment 122. In addition, sintering can usually be carried out at a sufficient temperature and oxygen, and it is not necessary to use a naked flame to ignite or burn. According to the process requirements, a flame spout can also be provided in the compartment 122 for igniting and sintering the materials. In addition, when sintering different factory copper-containing sludge, the water content of the copper-containing sludge in different factories is quite different, so it is necessary to adjust the process parameters, that is, the heating temperature and the sintering time. Since the device is controlled individually for each compartment 122, the sintering condition can be controlled by controlling the discharge time of each compartment 122, and additional process parameter adjustment is not required.

[0037] In addition, the feeding pipe 16 comprises a front section communicating with the compartment 122, a rear section connected with the feeding device outside the outer barrel 13, and a middle section communicating 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 disc is arranged outside the inner barrel 12, and the axis of the front section is at a certain angle with the side wall of the inner barrel 12. In addition, the partition plate 121 is arranged obliquely so that the bottom of the compartment 122 is conical. In specific implementation, by arranging the partition plate 121 obliquely, the material can be uniformly laid in the compartment 122 when entering the compartment 122, and the uniform distribution of the material can effectively ensure the consistency of the sintering condition between the materials. In addition, by arranging the spiral disc of the feeding pipe 16 in the compartment 122 between the outer barrel 13 and the inner barrel 12, the feeding pipe 16 forms a preheating section here, and then the material entering the compartment 122 from the feeding pipe 16 will pass through the preheating section and the sintering section in turn, and the preheating through the preheating section can improve the subsequent sintering effect. The length of the feeding pipe 16 and the feeding speed can be used to control the time of the material staying in the preheating section. In addition, by arranging the feeding pipe 16 at a certain angle with the outside of the inner barrel 12, when the spherical material enters the compartment 122 through the feeding pipe 16, it will move at a certain angle towards the inner wall of the compartment 122 due to a certain speed, and then it will spiral along the inner wall of the compartment 122 after contacting the inner wall to discharge, so as to further uniformly stack the material in the compartment 122 to improve the subsequent sintering effect.

[0038] Specifically, the bottom of the discharging pipe 11 communicates with the cooling assembly 20, the top of the discharging pipe 11 is closed, and the driving device 40 is arranged at the top of the discharging pipe 11, and the driving device 40 is used to drive the discharging pipe 11 to rotate. In specific implementation, in order to ensure the continuity of the feeding pipe 16 and the overall structural strength, the size and length of the discharging groove 111 are limited, and the discharging groove 111 is not arranged in a ring shape, so that when the compartment 122 discharges through the discharging groove 111, the material may accumulate on the side of the discharging pipe 11 where the discharging groove 111 is not arranged, and cannot be discharged normally. Therefore, by arranging the driving device 40, the discharging pipe 11 can rotate, so that the material in the compartment 122 can be completely discharged when discharging.

[0039] In some optional embodiments, the discharge pipe 11 extends outwardly outside the discharge pipe 11, and the stirring rods 113 are arranged in the compartments 122. The stirring rods 113 are evenly distributed outside the discharge pipe 11. When the material is fed into the compartments 122, the stirring rods 113 can be selected by the discharge pipe 11 to stir the material in the compartments 122, so that the material in the compartments 122 is evenly distributed. In addition, when the material is discharged from the compartments 122, the movable plate 112 moves to open the discharge slot 111, and the discharge pipe 11 rotates, and the stirring rods 113 also stir the material to accelerate the discharge speed of the material, so that the material is not accumulated on the back of the discharge pipe 11 where the discharge slot 111 is not arranged. In addition, when the material in the compartments 122 is sintered, the stirring rods 113 can also be rotated by the rotation of the discharge pipe 11 to stir the material, so as to accelerate the heat transfer and contact area of the material in the compartments 122, thereby keeping the sintering state of the material consistent. In some optional embodiments, an air channel can also be arranged on the inner wall of the feeding pipe 16 and the stirring rods 113. When sintering, the stirring rods 113 can be rotated to a position with poor sintering reaction effect by rotating the discharge pipe 11, and the position is additionally provided with oxygen through the air channel to improve the sintering reaction effect, so that the sintering state of the material in the compartments 122 is consistent, and the overburning or underburning state is further avoided. In addition, when the material in the compartments 122 is discharged, the material product can be in the form of particles and attached to the inner wall of the compartments 122. The air channel on the stirring rods 113 can be used to spray air to separate the material from the inner wall of the compartments 122, and the material is sucked by the air outlet pipe 18 or discharged through the discharge pipe 11. The interfaces of the multiple air outlet pipes 18 on the compartments 122 can also spray air to separate the material particles attached to the discharge pipe 11.

[0040] Specifically, the discharge slot 111 is a stepped slot, the height of the bottom groove part 1111 of the discharge slot 111 is consistent with the annular groove 1221, the depth of the top groove part 1112 of the discharge slot 111 is smaller than that of the bottom groove part 1111, the height of the movable block is between the bottom groove part 1111 and the annular groove 1221, the movable block is matched with the top groove part 1112, the connecting groove 114 is arranged in the side wall of the discharge pipe 11 and penetrates the bottom of the discharge pipe 11 and is in communication with the top groove part 1112, the movable block extends to the connecting block 115 matched with the connecting groove 114, and the movable block is connected with the driving part 14 through the connecting block 115, so that the driving part 14 drives the movable block to move up and down in the discharge slot 111. By arranging the discharge slot 111 as a stepped slot, the material in the discharge pipe 11 is prevented from falling into the gap of the discharge slot 111 when discharging in the pipe. By adjusting the height between the movable block, the discharge slot 111 and the annular groove 1221, the movable block can completely block the annular groove 1221, so that the material falling during sintering is avoided. In addition, by arranging the connecting block 115 and the connecting groove 114, the driving part 14 can be arranged far away from the partition 122 to control the movement of the movable block, so that the influence of high temperature near the partition 122 on the driving part 14 is avoided, and the range of the driving part 14 is wider, and the movable block can move up and down. In this case, the driving part 14 is not limited, and any device or part that can move the movable block up and down can be used.

[0041] In addition, the driving part 14 includes a connecting rod 141, the connecting rod 141 includes a threaded section, the connecting block 115 is provided with a threaded hole matched with the threaded section, and the connecting block 115 moves up and down along the threaded section by rotating the connecting rod 141. In specific implementation, the up and down movement of the movable plate 112 is driven by screw connection, which can be realized by rotating the connecting rod 141 without moving the connecting rod 141 up and down, so that the space for the up and down movement of the connecting rod 141 is not needed when the movable plate 112 is controlled to move, so that the space is more compact, thereby effectively reducing the volume of the device.

[0042] Specifically, the driving component 14 further comprises a connecting sleeve 142 sleeved on the connecting rod 141, an inner gear ring 143 arranged outside the connecting rod 141, a transmission plate 144 sleeved on the connecting sleeve 142, and an extension piece 145 connected with the transmission plate 144. The top outside of the connecting rod 141 extends outwardly with a clamping block 1411. The inner part of the connecting sleeve 142 is provided with a clamping groove 1421 matched with the clamping block 1411. The connecting sleeve 142 comprises a polished rod section 1422 and a gear section 1423 arranged below the polished rod section 1422. The top of the polished rod section 1422 extends outwardly 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 discharging pipeline 11 is not less than the height of the gear section 1423. The transmission sleeve is controlled to move up and down by the extension piece 145, so that the inner gear ring 143 and the gear section 1423 are engaged, so that the connecting rod 141 rotates under the rotation of the discharging pipeline 11. Specifically, the connecting sleeve 142 is controlled to move upward by the extension piece 145, so that the gear section 1423 is engaged with the inner gear ring 143, and then under the rotation of the discharging pipeline 11 and the interaction of the clamping block 1411 and the clamping groove 1421, the connecting rod 141 rotates while rotating with the discharging pipeline 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 groove 111 in the required compartment 122 is opened. When the required partition material is discharged, the discharging pipeline 11 reversely rotates, so that the movable block is reset, the discharging groove 111 is closed, and then the gear section 1423 is moved downward under the action of the extension piece 145 and is no longer engaged with the inner gear ring 143. Then, by separately controlling each driving component 14, the opening and closing of different discharging grooves 111 can be controlled. In addition, through the cooperation of the limiting ring edges 1424 and the transmission plate 144, the transmission plate 144 will only limit the upward and downward movement of the connecting rod 141, but will not limit its rotation. The upward and downward movement of the connecting rod limits the upward and downward movement of the movable plate 112, so as to ensure the closing of the discharging groove 111 when there is no discharging. In addition, by means of mechanical transmission, 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, the top of the outer barrel 13 is provided with a baffle 131, so that the top of the outer barrel 13 is divided into a containing space 132, the bottom of the baffle 131 is connected with the top of the inner barrel 12, the middle part of the baffle 131 is provided with a containing groove 133, so that the top of the discharge pipe 11 is at least partially located in the containing groove 133, the driving component 14 is located in the containing space 132, and the outer side of the inner gear ring 143 is connected with the side wall of the containing groove 133. By setting the containing space 132 and the containing groove 133 in the middle part of the baffle 131, the driving component 14 can be set in the containing space 132 and connected with the connecting block 115, so as to avoid the driving component 14 being too close to the compartment 122 and being affected by high temperature, and the driving component 14 is protected in the outer barrel 13 to avoid damage caused by external collision.

[0044] Specifically, the top of the discharge pipe 11 outwardly extends a connecting shaft 116, the connecting shaft 116 is arranged in the containing space 132, the outer side of the connecting shaft 116 outwardly extends a mounting table 117, so that the telescopic piece 145 is fixed on the mounting table 117, the top of the outer barrel 13 is provided with a driving device 40, one end of the transmission rod 41 of the driving device 40 is arranged in the containing space 132 and connected with the connecting shaft 116. In specific implementation, the driving device 40 is connected with the discharge pipe 11 through the connecting shaft 116, so as to enhance the connection strength of the two, and in addition, the mounting table 117 is arranged on the outer side of the connecting shaft 116, so that the telescopic piece 145 can be fixed on the plane, instead of being fixed on the arc surface on the outer side of the connecting shaft, which reduces the installation difficulty of the telescopic piece 145.

[0045] In summary, the present application sets up the sintering assembly 10 to sinter the copper sludge into sintered blocks, and then cools them through the cooling assembly 20, and then breaks them into metal blocks of appropriate size through the breaking 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 feeding pipe 16, the compartment 122 is heated through the heating piece 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 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 multiple compartments 122, the sintering is independently carried out in multiple compartments 122, thereby the thickness of the copper sludge to be sintered in a single compartment 122 is very thin, thereby the water content of the copper sludge at different positions in a single compartment 122 during sintering is less different, and since the amount of material to be sintered in a single compartment 122 is less, the temperature transfer efficiency between the materials is high, thereby the sintering states are relatively close, and when the material to be sintered in a single compartment 122 reaches the required sintering state, the corresponding movable plate 112 of the compartment 122 can be controlled to move to discharge the sintered blocks in the compartment 122, while the material not yet sintered in other compartments 122 continues to be sintered, thereby through the layered arrangement of the inner barrel 12, the sintering states of the materials to be sintered in the independent compartments 122 are close, the materials in each independent compartment 122 can be discharged individually according to the sintering state of the materials in each independent compartment 122, thereby avoiding the conditions of under-sintering or over-sintering. In addition, after a single independent compartment 122 is discharged, it can be recharged through the feeding pipe 16, thereby realizing the function of continuous sintering and greatly improving the production efficiency. In addition, since the sintering assembly 10 sintering is carried out through the heating piece 15 arranged between the outer barrel 13 and the inner barrel 12, and the feeding and discharging are carried out individually through each compartment 122, thereby during single feeding or discharging, the heat exchange with the outside is less, the temperature in the compartment 122 can be well maintained, and since each compartment 122 is controlled individually, when the temperature in a single compartment 122 decreases due to discharging or feeding, the temperature in the adjacent compartment 122 and the outside will cause the temperature in the compartment 122 to start to rise and be maintained within a temperature range, thereby avoiding the need for additional heating to maintain the temperature in the compartment 122, thereby reducing energy consumption, and the waste gas generated can be easily collected to realize the sintering mode of circulating hot air rising and cold air falling with the cooling assembly 20 below, thereby saving energy. Therefore, the present application solves the problem of lacking a device for copper extraction from copper-containing sludge with high production efficiency, low production cost and good sintering effect in the prior art.

[0046] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The above-described embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but cannot be understood as a limitation on the patent scope of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended 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 includes a discharge pipe, an inner barrel sleeved on the outside of the discharge pipe, an outer barrel sleeved on the outside of the inner barrel, a feed pipe, an air supply pipe and an air outlet pipe. The inner barrel is divided into multiple independent compartments by multiple partitions. An annular groove is provided at the bottom of the inner side wall of the compartment. A discharge trough adapted to the annular groove is provided on the discharge pipe to connect the compartment with the discharge pipe. A movable plate connected to a driving component is provided in the discharge trough. The driving component is used to control the movement of the movable plate to control the connection and disconnection between each compartment and the feed pipe. A heating element is provided between the outer barrel and the inner barrel. 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 collecting 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 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 provided on the outside of the inner barrel. 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 provided 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 stepped 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 plate is located between the bottom trough portion and the annular groove, the movable plate is adapted to the top trough portion, a connecting groove is provided in the side wall of the discharge pipe that passes through the bottom of the discharge pipe and is connected to the top trough portion, the movable plate is extended upward with a connecting block adapted to the connecting groove, the movable plate is connected to the driving component through the connecting block, so that the driving component drives the movable plate 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 includes a connecting rod, which includes a threaded section. The connecting block is provided with a threaded hole adapted to the threaded section. The connecting rod is rotated to enable the connecting block to move 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 connecting sleeve, a transmission plate mounted on the connecting sleeve and a telescopic member connected to the transmission plate, a block extending outward from the outer side of the top of the connecting rod, a slot adapted for the block is provided inside the connecting sleeve, the connecting sleeve includes a polished rod section and a gear section arranged under the polished rod section, two limiting ring edges extending outward from the top of the polished 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 segment, and the connecting sleeve is controlled to move up and down by the telescopic member so that the inner gear ring and the gear segment 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 at 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.

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 provided 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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