Secondary gold recovery device for cyanidation tailings

Abstract

The utility model belongs to the technical field of separation devices, and relates to a cyanidation tailing secondary gold recovery device which comprises a reaction barrel, a gear ring is arranged at the upper end of the reaction barrel, first equal-row sawtooth grooves are formed in the inner side of the gear ring, and a limiting block is located on the inner side of the reaction barrel and rotationally connected with the reaction barrel. A first equal-column sawtooth block is slidably clamped to the inner side of the limiting block, the lower end of the first equal-column sawtooth block is fixedly connected with a secondary filtering barrel, a second equal-column sawtooth groove is formed in the inner side of the first equal-column sawtooth block, and a second equal-column sawtooth block is slidably connected to the inner side of the second equal-column sawtooth groove; the lower end of the second equal-row sawtooth block is fixedly connected with a first-stage filtering barrel, and a driving assembly is arranged on the inner side of the reaction barrel. According to the utility model, tailings with larger particles are recovered through the primary filter vat, and finer and purer tailings components are recovered from the secondary filter vat, so that cyanidation tailings on the inner sides of the primary filter vat and the secondary filter vat are subsequently recovered with different precisions.

Description

Technical Field

[0001] This utility model belongs to the field of separation device technology and relates to a device for secondary gold recovery from cyanide tailings. Background Technology

[0002] In the metal extraction and smelting process, cyanidation is a common extraction process that is widely used to extract precious metals such as gold from ores. However, the cyanide tailings produced in this process often contain a certain amount of residual metals, especially precious metals such as gold, which have high recycling value.

[0003] As disclosed in patent (CN221535901U), a cyanide tailings separation and recovery device is described, comprising: a separation cylinder; a separation component, the separation component comprising a centrifugal mesh cylinder rotatably disposed on the top wall of the separation cylinder, and a rotating tube rotatably disposed on the bottom wall of the separation cylinder and extending to the outer surface of the separation cylinder, the separation component further comprising a drive motor fixedly disposed on the lower surface of the separation cylinder; and a filter press component, the filter press component comprising a filter screen slidably disposed on the inner wall of the centrifugal mesh cylinder, and a fixed cylinder rotatably disposed on the inner wall of the rotating tube. This invention, by setting up a separation component, enables the device to centrifuge the solid and liquid within the centrifugal mesh cylinder during solid-liquid separation of the solution after the reaction of cyanide tailings and the reaction liquid, thereby achieving sufficient and rapid solid-liquid separation of the solution after the reaction of cyanide tailings and the reaction liquid, and effectively solving the defect in the prior art that cannot achieve sufficient solid-liquid separation.

[0004] When using the above technology, the following technical problems were found in the existing technology: If a centrifuge screen with a larger filter hole is selected during use, small particles of cyanide tailings inside the centrifuge screen will be thrown out. These small particles may not only be lost with the waste liquid, causing the loss of precious metals, but may also increase the difficulty of subsequent wastewater treatment processes. On the other hand, if a centrifuge screen with a smaller pore size is selected, although the recovery rate of precious metals can be improved, this also brings new problems. During the centrifugation process, large and small particles tend to accumulate inside the filter screen, forming a dense filter layer, which increases the burden on the filter screen. This aggregation phenomenon will hinder the effective contact between the solution and the filter screen, reduce the efficiency of centrifugation separation, and may even lead to equipment blockage and accelerated wear. Utility Model Content

[0005] The technical problem this invention aims to solve is that if a centrifuge screen with a large pore size is selected during use, small particles of cyanide tailings inside the screen will be ejected. These small particles may not only be lost with the waste liquid, resulting in the loss of precious metals, but may also increase the difficulty of subsequent wastewater treatment processes. On the other hand, if a centrifuge screen with a smaller pore size is selected, although the recovery rate of precious metals can be improved, this also brings new problems. During centrifugation, large and small particles tend to accumulate inside the filter screen, forming a dense filter layer, which increases the burden on the filter screen. This aggregation phenomenon will hinder the effective contact between the solution and the filter screen, reduce the efficiency of centrifugal separation, and may even lead to equipment blockage and accelerated wear.

[0006] This utility model discloses a device for secondary gold recovery from cyanide tailings, comprising a reaction tank. A gear ring is provided at the upper end of the reaction tank, and a first row of serrated grooves is formed on the inner side of the gear ring. A limiting block is fixedly connected to the lower end of the gear ring. The limiting block is located inside the reaction tank and rotatably connected to it. A first row of serrated blocks is slidably engaged on the inner side of the limiting block. A secondary filter tank is fixedly connected to the lower end of the first row of serrated blocks. A second row of serrated grooves is formed on the inner side of the first row of serrated blocks, and a second row of serrated blocks is slidably connected to the inner side of the second row of serrated grooves. A primary filter tank is fixedly connected to the lower end of the second row of serrated blocks. A drive assembly is provided inside the reaction tank.

[0007] The drive assembly includes a servo motor. The servo motor is fixedly connected to the inner side of the reaction tank. An output rod is fixedly connected to the output end of the servo motor. An output gear is fixedly connected to the outer side of the output rod. The output gear meshes with a gear ring.

[0008] Multiple sets of stirring blades are fixedly connected to the outside of the secondary filter tank.

[0009] A feed pipe is fixedly connected to the inner side of the upper end of the reaction tank, and a discharge pipe is fixedly connected to the inner side of the lower end of the reaction tank.

[0010] The upper end of the reaction vessel is provided with a limiting cover, and the lower end of the limiting cover is fixedly connected with a threaded ring. A threaded groove is opened in the middle of the upper end of the gear ring, and the threaded ring is located inside the threaded groove and is threadedly connected to the threaded groove.

[0011] A sealing block is fixedly connected to the middle of the lower end of the limiting cover. The sealing block is located inside the primary filter barrel. A handle is fixedly connected to the upper end of the limiting cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The cyanide tailings are placed inside the primary filter barrel. Then, the drive assembly is activated, which drives the gear ring to rotate. The gear ring engages with the first and second rows of sawtooth blocks and grooves, respectively, causing the primary and secondary filter barrels to rotate. The cyanide tailings are filtered through the holes in the primary filter barrel. The filtered cyanide tailings enter the inner side of the secondary filter barrel and are further separated through the holes in the secondary filter barrel. This secondary separation of the cyanide tailings allows for the recovery of larger particles of tailings through the primary filter barrel, while finer and purer tailings are recovered from the secondary filter barrel. This enables subsequent recovery of the cyanide tailings inside the primary and secondary filter barrels with different levels of precision.

[0013] By moving the limit cover with the handle, the sealing block is placed inside the primary filter tank, thus sealing the primary filter tank. Then, by turning the handle, the threaded ring is rotated through the limit cover, thereby connecting the threaded ring with the threaded groove. When the secondary filter tank rotates, it drives the stirring blade to rotate, thereby stirring the solution and allowing the solution to react better with the cyanide tailings. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the reaction vessel of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the first row of sawtooth grooves of this utility model.

[0018] Figure 4 This is a schematic diagram of the overall cross-section of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the limiting cover of this utility model.

[0020] Figure 6 This is a schematic diagram of the threaded groove structure of this utility model.

[0021] In the diagram: 101, reaction vessel; 102, gear ring; 103, first row of serrated grooves; 104, limiting block; 105, first row of serrated blocks; 106, secondary filter tank; 107, second row of serrated grooves; 108, second row of serrated blocks; 109, primary filter tank; 201, servo motor; 202, output rod; 203, output gear; 301, stirring blade; 401, feed pipe; 402, discharge pipe; 501, limiting cover; 502, threaded ring; 503, threaded groove; 601, handle; 602, sealing block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] Example 1

[0027] like Figures 1-5 As shown, a device for secondary gold recovery from cyanide tailings includes a reaction tank 101. A gear ring 102 is provided at the upper end of the reaction tank 101. A first row of serrated grooves 103 is formed on the inner side of the gear ring 102. A limiting block 104 is fixedly connected to the lower end of the gear ring 102. The limiting block 104 is located inside the reaction tank 101 and is rotatably connected to the reaction tank 101. A first row of serrated blocks 105 is slidably engaged on the inner side of the limiting block 104. A secondary filter tank 106 is fixedly connected to the lower end of the first row of serrated blocks 105. A second row of serrated grooves 107 are formed on the inner side of the first row of serrated blocks 105. A second row of serrated blocks 108 is slidably connected to the inner side of the second row of serrated grooves 107. A primary filter tank 109 is fixedly connected to the lower end of the second row of serrated blocks 108. A drive assembly is provided inside the reaction tank 101.

[0028] The cyanide tailings are placed inside the primary filter barrel 109. Then, the drive assembly is activated, which drives the gear ring 102 to rotate. The gear ring 102 engages with the first row of serrated blocks 105 and the first row of serrated grooves 103, and with the second row of serrated blocks 108 and the second row of serrated grooves 107. This drives the primary filter barrel 109 and the secondary filter barrel 106 to rotate. The cyanide tailings are filtered through the holes on the primary filter barrel 109. The filtered cyanide tailings enter the inner side of the secondary filter barrel 106 and are further separated through the holes on the secondary filter barrel 106. This secondary separation of the cyanide tailings allows for the recovery of larger particles of tailings through the primary filter barrel 109, while recovering finer and purer tailings components from the secondary filter barrel 106. This enables subsequent recovery of the cyanide tailings inside the primary filter barrel 109 and the secondary filter barrel 106 with different levels of precision.

[0029] The drive assembly includes a servo motor 201. The servo motor 201 is fixedly connected to the inner side of the reaction vessel 101. An output rod 202 is fixedly connected to the output end of the servo motor 201. An output gear 203 is fixedly connected to the outer side of the output rod 202. The output gear 203 meshes with a gear ring 102. Starting the servo motor 201 causes it to drive the output gear 203 to rotate via the output rod 202. The output gear 203 meshes with the gear ring 102, causing the gear ring 102 to rotate.

[0030] A feed pipe 401 is fixedly connected to the inner side of the upper end of the reaction tank 101, and a discharge pipe 402 is fixedly connected to the inner side of the lower end of the reaction tank 101. The solution is transported to the inner side of the reaction tank 101 through the feed pipe 401. After the reaction with the cyanide tailings is completed, the waste liquid is discharged through the discharge pipe 402.

[0031] During operation, the solution is transported to the inside of the reaction tank 101 through the feed pipe 401. Then, the cyanide tailings are placed inside the primary filter tank 109. The drive assembly is then started, which drives the gear ring 102 to rotate. The gear ring 102 engages with the first row of serrated blocks 105 and the first row of serrated grooves 103, and with the second row of serrated blocks 108 and the second row of serrated grooves 107. This drives the primary filter tank 109 and the secondary filter tank 106 to rotate. The cyanide tailings are filtered through the holes on the primary filter tank 109. The filtered cyanide tailings enter the inside of the secondary filter tank 106 and are further separated through the holes on the secondary filter tank 106, thus performing secondary separation of the cyanide tailings. Finally, the waste liquid is discharged through the discharge pipe 402.

[0032] Example 2

[0033] like Figures 1-6As shown, multiple sets of stirring blades 301 are fixedly connected to the outside of the secondary filter tank 106. When the secondary filter tank 106 rotates, it drives the stirring blades 301 to rotate, thereby stirring the solution and allowing the solution to react better with the cyanide tailings.

[0034] The upper end of the reaction vessel 101 is provided with a limiting cover 501, and the lower end of the limiting cover 501 is fixedly connected with a threaded ring 502. A threaded groove 503 is opened in the middle of the upper end of the gear ring 102. The threaded ring 502 is located inside the threaded groove 503 and is threadedly connected to the threaded groove 503. When the threaded ring 502 is threadedly connected to the threaded groove 503, the limiting cover 501 limits the first row of sawtooth blocks 105 and the second row of sawtooth blocks 108, making the rotation of the first row of sawtooth blocks 105 and the second row of sawtooth blocks 108 more stable.

[0035] A sealing block 602 is fixedly connected to the middle of the lower end of the limiting cover 501. The sealing block 602 is located inside the primary filter barrel 109. A handle 601 is fixedly connected to the upper end of the limiting cover 501. The handle 601 makes it more convenient for the operator to rotate the limiting cover 501.

[0036] During operation, the operator moves the limiting cover 501 through the handle 601, causing the sealing block 602 to be placed inside the primary filter tank 109, thereby sealing the primary filter tank 109. Then, the operator rotates the handle 601, causing the threaded ring 502 to rotate through the limiting cover 501, thereby connecting the threaded ring 502 with the threaded groove 503. When the secondary filter tank 106 rotates, it drives the stirring blade 301 to rotate, thereby stirring the solution and allowing the solution to react better with the cyanide tailings.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for secondary recovery of gold from cyanide tailings, characterized in that: The utility model provides a reaction bucket (101) is provided with gear ring (102) on the upper end, the inside of gear ring (102) is opened with first equal row sawtooth groove (103), the lower end of gear ring (102) is fixedly connected with limiting block (104), limiting block (104) is located the inside of reaction bucket (101) and is rotatably connected with reaction bucket (101), the inside of limiting block (104) is slidably connected with first equal row sawtooth block (105), the lower end of first equal row sawtooth block (105) is fixedly connected with secondary filter bucket (106), the inside of first equal row sawtooth block (105) is opened with second equal row sawtooth groove (107), the inside of second equal row sawtooth groove (107) is slidably connected with second equal row sawtooth block (108), the lower end of second equal row sawtooth block (108) is fixedly connected with primary filter bucket (109), the inside of reaction bucket (101) is provided with drive assembly.

2. The device for secondary recovery of gold from cyanide tailings according to claim 1, characterized in that: The utility model provides a reaction bucket (101) is fixedly connected with servo motor (201) on the inside, the output of servo motor (201) is fixedly connected with output rod (202), the outside of output rod (202) is fixedly connected with output gear (203), and output gear (203) is engagedly connected with gear ring (102).

3. The device for secondary recovery of gold from cyanide tailings according to claim 1, characterized in that: The outside of secondary filter bucket (106) is fixedly connected with multiple groups of stirring page (301).

4. The device for secondary recovery of gold from cyanide tailings according to claim 1, characterized in that: The inside of the upper end of reaction bucket (101) is fixedly connected with feeding pipe (401), and the inside of the lower end of reaction bucket (101) is fixedly connected with discharge pipe (402).

5. The device for secondary recovery of gold from cyanide tailings according to claim 1, characterized in that: The upper end of reaction bucket (101) is provided with limiting cover (501), the lower end of limiting cover (501) is fixedly connected with threaded ring (502), the middle part of the upper end of gear ring (102) is opened with threaded groove (503), and threaded ring (502) is located the inside of threaded groove (503) and is threadedly connected with threaded groove (503).

6. The device for secondary recovery of gold from cyanide tailings according to claim 5, characterized in that: The middle part of the lower end of limiting cover (501) is fixedly connected with sealing block (602), sealing block (602) is located the inside of primary filter bucket (109), and the upper end of limiting cover (501) is fixedly connected with handle (601).

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