Spiral classifier for mineral separation

Abstract

The invention relates to the technical field of mineral separation devices, in particular to a mineral separation spiral classifier which comprises a separation groove body, and two supporting machine bases are fixedly connected to the bottom of the separation groove body. The ore feeding flat plate is fixedly connected to the side wall of the separation tank body, and the outer wall of the ore feeding flat plate is fixedly connected with a protective supporting frame; the sorting assembly comprises spiral shafts rotationally connected to the two opposite side walls of the sorting groove body. Dust and impurities accumulated in the sorting groove body and the inclined discharging frame can be fully removed, normal screening, grading and discharging operation of ore are guaranteed, the overall grading and screening operation efficiency of the ore is improved, meanwhile, the feeding speed can be conveniently adjusted according to the ore amount, the uniformity and stability of ore feeding are kept, and the ore screening efficiency is improved. Normal operation of mineral separation grading operation is guaranteed, small-particle ores in the separation tank body can be prevented from splashing, and the operation safety of workers is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of ore dressing devices, and in particular to a spiral classifier for ore dressing. Background Art

[0002] The ore dressing device is related equipment used to separate useful minerals from natural ores. It can effectively distinguish useful minerals from gangue minerals or other impurities based on the differences in physical or chemical properties of different minerals in the ore by using corresponding separation methods and means, so as to provide qualified raw materials for subsequent smelting and other processing links. The spiral classifier used for ore dressing is an important ore dressing equipment in ore dressing operations. It mainly includes an inclined trough body and a spiral device rotating in the trough, etc., which can provide materials of different particle sizes for subsequent ore dressing processes.

[0003] However, the existing spiral classifiers for mineral processing often have the following problems when in use: When the spiral classifier is used to sort ores of different sizes, there will be a lot of dust and small particles of ore impurities on the surface of the ore. These dust and impurities are easy to adhere to the inner wall of the tank that holds the ore. At the same time, after the ore is graded and screened, the dust and impurities will fall into the discharge device at the same time, affecting the normal screening, grading and discharge of the ore, resulting in low overall grading efficiency of the ore. In the process of spiral classification, the rate at which the ore enters the classification and screening device is not easy to adjust, which makes the ore feeding not uniform and stable enough, that is, the ore feeding process may be blocked, affecting the normal operation of the ore classification operation; Since the ore will be subjected to a certain driving force during the spiral screening and grading process, the smaller ore particles are easily squeezed and splashed. The workers need to observe the specific conditions of the ore dressing operation during the ore dressing operation. The splashing ore particles can easily cover the workers, thus posing a certain operational risk to the workers. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a spiral classifier for mineral processing, which can effectively solve the problems in the prior art that dust and impurities are easily attached and accumulated inside the spiral classifier and the discharging device of mineral processing, affecting the normal ore screening, grading and discharging operations, resulting in low ore sorting and discharging efficiency, and the mine feeding is not easy to adjust, resulting in poor ore feeding uniformity and stability, as well as ore particles are easily splashed during the mineral processing operation, which poses certain operational risks to the workers.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a spiral classifier for mineral processing, comprising a sorting tank body, wherein two supporting machine bases are fixedly connected to the bottom of the sorting tank body; A feeding plate, the feeding plate is fixedly connected to the side wall of the sorting tank, and the outer wall of the feeding plate is fixedly connected to a protective support frame; A sorting component, the sorting component includes a spiral shaft rotatably connected to two opposite side walls of a sorting tank body, the outer wall of the spiral shaft is fixedly connected to a spiral conveying blade, the outer wall of the sorting tank body is fixedly connected to a No. 1 fixed bracket, the No. 1 fixed bracket is fixedly connected to a No. 1 low-speed motor, the output end of the No. 1 low-speed motor is fixedly connected to the end of the spiral shaft, a plurality of sorting through holes are opened on the lower end surface of the sorting tank body, the lower end surface of the sorting tank body is fixedly connected to an inclined discharge frame, two reciprocating screws are rotatably connected between the two support bases, the two reciprocating screws are both threadedly connected to reciprocating guide blocks, and the two reciprocating guide blocks are fixedly connected to high-pressure water guns; A uniform ore feeding component is provided on the ore feeding plate, and an adjustable protective component is fixedly connected to the upper end surface of the sorting trough body.

[0006] Furthermore, a plurality of cleaning scrapers are fixedly connected to the spiral conveying blades, and the cleaning scrapers are in contact with the inner wall of the sorting tank.

[0007] Furthermore, the sorting component also includes two rotating motors fixedly connected to the supporting base, the output ends of the two rotating motors are respectively fixedly connected to the ends of the two reciprocating screws, the upper end surfaces of the two reciprocating guide blocks are fixedly connected to rotating brackets, the upper ends of the rotating brackets are rotatably connected to limiting rollers, and the lower end surface of the sorting trough body is fixedly connected to two limiting guide rails, and the limiting rollers match the inner sides of the limiting guide rails.

[0008] Furthermore, the uniform feeding assembly includes a plurality of accommodating holes opened on the ore feeding plate, and a plurality of the accommodating holes are rotatably connected to conveying rollers, and the ends of a plurality of the conveying rollers pass through the side wall of the protective support frame and are respectively fixedly connected to a first synchronous wheel and a second synchronous wheel, and the first synchronous wheel is connected to the second synchronous wheel through a synchronous belt transmission, and the ends of two of the conveying rollers are fixedly connected to a transfer gear, a No. 2 fixed bracket is fixedly connected to the outer wall of the protective support frame, a No. 2 low-speed motor is fixedly connected to the No. 2 fixed bracket, and a main gear is fixedly connected to the output end of the No. 2 low-speed motor, and the main gear and the two transfer gears are meshed with each other.

[0009] Furthermore, the adjustable protective assembly includes two concave slide rails fixedly connected to the upper end surface of the sorting trough body, a plurality of sliding blocks are slidably connected to the inner sides of the two concave slide rails, and an arc-shaped support rod is fixedly connected between the plurality of sliding blocks in the two concave slide rails, and a plurality of protective curtains are fixedly connected between the plurality of arc-shaped support rods, an electric telescopic rod is fixedly connected to the lower end of one of the arc-shaped support rods, and the end of the arc-shaped support rod close to the feeding plate is fixedly connected to the upper end surface of the concave slide rails, a locking pin is fixedly connected to the output end of the electric telescopic rod, a locking frame is fixedly connected to the outer wall of the reciprocating guide block, a socket is provided on the locking frame, and the locking pin matches the socket.

[0010] Furthermore, two opposite side walls of the inclined discharge frame are provided with strip-shaped through holes, and the high-pressure water gun and the strip-shaped through holes are located on the same horizontal plane.

[0011] Furthermore, the outer wall of the conveying roller is provided with a plurality of friction protrusions, and the plurality of friction protrusions are evenly arranged at equal distances on the outer wall of the conveying roller.

[0012] Furthermore, the protective curtain is made of highly elastic and bendable TPE material.

[0013] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention provides a sorting component, which drives the spiral conveying blades to rotate to push the ore to move in the sorting trough body, and uses a plurality of sorting through holes to complete the screening and grading of the ore. When the spiral conveying blades rotate, they will drive a plurality of cleaning scrapers to rotate synchronously, and the cleaning scrapers are used to move relative to the inner wall of the sorting trough body to remove dust and impurities. At the same time, a high-pressure water gun can be used to evenly and fully clean the inside of the inclined discharge frame to avoid the accumulation of more dust and impurities in the sorting trough body and the inclined discharge frame, thereby ensuring the normal screening, grading and discharge operations of the ore, which is beneficial to improving the overall grading and screening efficiency of the ore.

[0014] The present invention provides a uniform feeding assembly, which assists in conveying ore by driving a plurality of conveying rollers to rotate synchronously, and can synchronously control the rotation speed of the plurality of conveying rollers so as to adjust the feeding speed according to the amount of ore, so as to maintain the uniformity and stability of ore feeding, avoid blockage in the ore feeding process, and ensure the normal progress of ore dressing and grading operations.

[0015] The present invention provides an adjustable protection component, which can synchronously drive a plurality of arc-shaped support rods to move relative to the sorting trough body when the inclined discharge frame is cleaned in the initial stage of mineral processing, so that a plurality of protection curtains begin to open and cover the sorting trough body for protection, so as to avoid splashing of small particles of ore in the sorting trough body and ensure the operating safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a spiral classifier for mineral processing described in the present invention; Figure 2 for Figure 1 A magnified image of point A; Figure 3 It is a schematic diagram of the three-dimensional structure of a sorting tank body in a spiral classifier for mineral processing described in the present invention from one viewing angle; Figure 4 It is a three-dimensional structural schematic diagram of a spiral shaft and a spiral conveying blade in a spiral classifier for mineral processing described in the present invention; Figure 5 It is a schematic diagram of the partial structure of the uniform ore feeding component in the spiral classifier for ore dressing described in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of an inclined discharge frame in a spiral classifier for mineral processing described in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of a sorting trough in a spiral classifier for mineral processing described in the present invention from another perspective.

[0018] Figure numerals: 1, sorting trough; 2, support base; 3, feeding plate; 4, protective support frame; 5, screw shaft; 6, screw conveying blade; 7, No. 1 fixed bracket; 8, No. 1 low-speed motor; 9, sorting through hole; 10, inclined discharge frame; 11, reciprocating screw; 12, reciprocating guide block; 13, high-pressure water gun; 14, cleaning scraper; 15, rotating motor; 16, rotating bracket; 17, limit roller; 18, limit Guide rail; 19, accommodating hole; 20, conveying roller; 21, No. 1 synchronous wheel; 22, No. 2 synchronous wheel; 23, synchronous belt; 24, transfer gear; 25, No. 2 fixed bracket; 26, No. 2 low-speed motor; 27, main gear; 28, concave slide rail; 29, slider; 30, arc-shaped supporting rod; 31, protective curtain; 32, electric telescopic rod; 33, locking pin; 34, locking frame; 35, strip perforation; 36, friction protrusion. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] Example: Refer to Figures 1 to 7 A spiral classifier for mineral processing comprises a sorting trough 1, a feeding plate 3 and a sorting assembly, wherein two supporting machine bases 2 are fixedly connected to the bottom of the sorting trough 1; the feeding plate 3 is fixedly connected to the side wall of the sorting trough 1, and a protective support frame 4 is fixedly connected to the outer wall of the feeding plate 3; the sorting assembly comprises a spiral shaft 5 rotatably connected to two opposite side walls of the sorting trough 1, a spiral conveying blade 6 is fixedly connected to the outer wall of the spiral shaft 5, and a plurality of cleaning scrapers 14 are fixedly connected to the spiral conveying blade 6, and the cleaning scrapers 14 are connected to the sorting trough 1 The inner wall of the sorting tank body 1 fits together, the outer wall of the sorting tank body 1 is fixedly connected to a No. 1 fixed bracket 7, the No. 1 fixed bracket 7 is fixedly connected to a No. 1 low-speed motor 8, the output end of the No. 1 low-speed motor 8 is fixedly connected to the end of the spiral shaft 5, a plurality of sorting through holes 9 are opened on the lower end surface of the sorting tank body 1, and an inclined discharge frame 10 is fixedly connected to the lower end surface of the sorting tank body 1. Two reciprocating screws 11 are rotatably connected between the two supporting machine bases 2, and the two reciprocating screws 11 are both threadedly connected to reciprocating guide blocks 12, and the two reciprocating guide blocks 12 are fixedly connected to high The high-pressure water gun 13, it should be noted that the high-pressure water gun 13 is provided with a water inlet, and the high-pressure water gun 13 can be connected to an external water source to fully clean the inside of the inclined discharge frame 10. The two opposite side walls of the inclined discharge frame 10 are provided with strip-shaped perforations 35. The high-pressure water gun 13 and the strip-shaped perforations 35 are on the same horizontal plane. The sorting component also includes two rotating motors 15 fixedly connected to the support base 2. The output ends of the two rotating motors 15 are respectively fixedly connected to the ends of the two reciprocating screws 11, and the two reciprocating guide blocks The upper end surfaces of the reciprocating guide block 12 are fixedly connected with a rotating bracket 16, the upper end of the rotating bracket 16 is rotatably connected with a limiting roller 17, and the lower end surface of the sorting tank body 1 is fixedly connected with two limiting guide rails 18, and the limiting roller 17 matches the inner side of the limiting guide rail 18. It should be noted that in the process of the reciprocating guide block 12 moving horizontally back and forth relative to the sorting tank body 1, the limiting sliding cooperation of the limiting roller 17 and the limiting guide rail 18 can limit the movement of the reciprocating guide block 12, which is conducive to maintaining the movement stability of the reciprocating guide block 12 and the high-pressure water gun 13; The spiral shaft 5 and the spiral conveying blade 6 are driven to rotate by a No. 1 low-speed motor 8, so that the spiral conveying blade 6 pushes the ore in the sorting trough body 1 to move, and a number of sorting through holes 9 with different diameters are used to complete the screening and grading of the ore. During the rotation of the spiral conveying blade 6, a number of cleaning scrapers 14 can synchronously move relative to the inner wall of the sorting trough body 1, and a number of cleaning scrapers 14 are used to remove dust and impurities attached to the inner wall of the sorting trough body 1. At the same time, the reciprocating screw 11 can be driven to rotate by the rotating motor 15, so that the reciprocating guide block 12 on the reciprocating screw 11 starts to move, thereby driving the high-pressure water gun 13 to move horizontally relative to the inclined discharge frame 10, and the high-pressure water gun 13 is used to clean the inside of the inclined discharge frame 10 evenly and fully, thereby avoiding the accumulation of more dust and impurities in the sorting trough body 1 and the inclined discharge frame 10, ensuring the normal screening, grading and discharge operations of the ore, which is beneficial to improving the overall grading and screening efficiency of the ore.

[0022] like Figure 1 and Figure 5 As shown, a uniform feeding assembly is provided on the feeding plate 3, and the uniform feeding assembly includes a plurality of receiving holes 19 provided on the feeding plate 3, and a plurality of receiving holes 19 are rotatably connected to conveying rollers 20. It should be noted that the lateral cross-section of the receiving hole 19 is an arc-shaped structure to prevent the ore from falling due to the excessive gap between the conveying roller 20 and the inner side of the receiving hole 19. The outer wall of the conveying roller 20 is provided with a plurality of friction protrusions 36, and the plurality of friction protrusions 36 are evenly arranged at equal distances on the outer wall of the conveying roller 20. The ends of the plurality of conveying rollers 20 are penetrated with anti-friction protrusions 36. The side walls of the protective support frame 4 are respectively fixedly connected with a first synchronous wheel 21 and a second synchronous wheel 22, the first synchronous wheel 21 and the second synchronous wheel 22 are connected by a synchronous belt 23, and the ends of the two conveying rollers 20 are fixedly connected with a transfer gear 24, the outer wall of the protective support frame 4 is fixedly connected with a second fixed bracket 25, the second fixed bracket 25 is fixedly connected with a second low-speed motor 26, the output end of the second low-speed motor 26 is fixedly connected with a main gear 27, and the main gear 27 and the two transfer gears 24 are meshed with each other; The main gear 27 is rotated by the No. 2 low-speed motor 26, and two of the conveying rollers 20 are driven to rotate by the meshing transmission of the main gear 27 and the two transfer gears 24, and then the other two conveying rollers 20 are driven to rotate by the transmission effect of two sets of No. 1 synchronous wheels 21, No. 2 synchronous wheels 22 and synchronous belts 23, so that several conveying rollers 20 can rotate synchronously in the clockwise direction, so that the ore can smoothly enter the sorting trough 1, so as to assist in the transportation of the ore, and the rotation speed of several conveying rollers 20 can be controlled by controlling the power of the No. 2 low-speed motor 26, so that the feeding rate can be conveniently adjusted according to the amount of ore, so as to maintain the uniformity and stability of the ore feeding, avoid blockage in the ore feeding process, and ensure the normal progress of the ore dressing and grading operations.

[0023] like Figure 1 , Figure 3 and Figure 7 As shown, an adjustable protection component is fixedly connected to the upper end surface of the sorting trough body 1, and the adjustable protection component includes two concave slide rails 28 fixedly connected to the upper end surface of the sorting trough body 1, and a plurality of sliders 29 are slidably connected to the inner sides of the two concave slide rails 28. It should be noted that the inner surface of the concave slide rail 28 and the outer surfaces of the plurality of sliders 29 are coated with a grease layer to facilitate improving the sliding smoothness of the plurality of sliders 29 on the inner side of the concave slide rail 28, and an arc-shaped support rod 30 is fixedly connected between the plurality of sliders 29 in the two concave slide rails 28, and a plurality of protection curtains 31 are fixedly connected between the plurality of arc-shaped support rods 30. The protection curtains 31 are made of highly elastic and bendable TPE material, and an electric telescopic rod 32 is fixedly connected to the lower end of one of the arc-shaped support rods 30, and the end of the arc-shaped support rod 30 close to the feeding plate 3 is fixedly connected to the upper end surface of the concave slide rail 28, and a locking pin 33 is fixedly connected to the output end of the electric telescopic rod 32. The wall is fixedly connected with a locking frame 34, and a socket is provided on the locking frame 34, and the locking pin 33 matches the socket. It should be noted that before the reciprocating guide block 12 moves to the limit position close to the rotating motor 15 in the initial stage, the locking pin 33 can be driven to move downward by controlling the electric telescopic rod 32, so that the locking pin 33 can be matched with the socket on the locking frame 34, that is, when the reciprocating guide block 12 moves, it can drive one of the arc-shaped supporting rods 30 to move. When the reciprocating guide block 12 just moves to the limit position, the locking pin 33 is driven to move upward by controlling the electric telescopic rod 32, so that the locking pin 33 is no longer matched with the socket on the locking frame 34, that is, the connection between the reciprocating guide block 12 and one of the arc-shaped supporting rods 30 is released, so that the reciprocating guide block 12 can continue to reciprocate horizontally relative to the sorting trough body 1, and the plurality of arc-shaped supporting rods 30 and the plurality of protective curtains 31 have completed the opening action, so as to realize the covering and protection function of the sorting trough body 1; When the high-pressure water gun 13 is initially driven to clean the inclined discharge frame 10, the reciprocating guide block 12 can drive one of the arc-shaped support rods 30 to move, and then pull the several arc-shaped support rods 30 in turn to move relative to the sorting trough body 1, so that the several protective curtains 31 between the several arc-shaped support rods 30 begin to open and cover the sorting trough body 1 for protection, thereby avoiding the splashing of small particles of ore in the sorting trough body 1 and ensuring the operating safety of the staff.

[0024] The working principle of the present invention is as follows: When in use, the spiral shaft 5 and the spiral conveying blade 6 are driven to rotate by the No. 1 low-speed motor 8, so that the spiral conveying blade 6 pushes the ore in the sorting trough body 1 to move, and a plurality of sorting through holes 9 of different diameters are used to complete the screening and grading of the ore. During the rotation of the spiral conveying blade 6, a plurality of cleaning scrapers 14 can synchronously move relative to the inner wall of the sorting trough body 1, and a plurality of cleaning scrapers 14 are used to remove dust and impurities attached to the inner wall of the sorting trough body 1. At the same time, the reciprocating screw 11 can be driven to rotate by the rotating motor 15, so that the reciprocating guide block 12 on the reciprocating screw 11 starts to move, thereby driving the high-pressure water gun 13 to move horizontally relative to the inclined discharge frame 10, and the high-pressure water gun 13 is used to clean the inside of the inclined discharge frame 10 evenly and fully, thereby avoiding the accumulation of more dust and impurities in the sorting trough body 1 and the inclined discharge frame 10, ensuring the normal screening, grading and discharge operation of the ore, which is conducive to improving the overall grading and screening efficiency of the ore; In the feeding link of mineral processing, the main gear 27 can be rotated by the second low-speed motor 26, and the meshing transmission of the main gear 27 and the two transfer gears 24 is used to drive two of the conveying rollers 20 to rotate, and then the transmission effect of the two sets of first synchronous wheels 21, second synchronous wheels 22 and synchronous belts 23 is used to drive the other two conveying rollers 20 to rotate, so that the plurality of conveying rollers 20 can rotate synchronously in the clockwise direction, so that the ore can smoothly enter the sorting tank body 1, so as to assist in the transportation of the ore, and the rotation speed of the plurality of conveying rollers 20 can be controlled by controlling the power of the second low-speed motor 26, so that the feeding speed can be conveniently adjusted according to the amount of ore, so as to maintain the uniformity and stability of the ore feeding, avoid the blockage of the ore feeding process, and ensure the normal progress of the mineral processing and grading operation; In the initial stage of mineral processing, that is, when the high-pressure water gun 13 is initially driven to clean the inclined discharge frame 10, the reciprocating guide block 12 can drive one of the arc-shaped support rods 30 to move, and then pull a plurality of arc-shaped support rods 30 in turn to move relative to the sorting trough body 1, so that a plurality of protective curtains 31 between the plurality of arc-shaped support rods 30 begin to open and cover the sorting trough body 1 for protection, thereby avoiding splashing of small particles of ore in the sorting trough body 1 and ensuring the operating safety of the staff.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spiral classifier for mineral processing, characterized in that: include: A sorting trough body (1), wherein two supporting bases (2) are fixedly connected to the bottom of the sorting trough body (1); A feeding plate (3), the feeding plate (3) being fixedly connected to a side wall of the sorting tank body (1), and a protective support frame (4) being fixedly connected to an outer wall of the feeding plate (3); A sorting component, the sorting component comprising a spiral shaft (5) rotatably connected to two opposite side walls of a sorting trough body (1), the outer wall of the spiral shaft (5) being fixedly connected to a spiral conveying blade (6), the outer wall of the sorting trough body (1) being fixedly connected to a No. 1 fixed bracket (7), the No. 1 fixed bracket (7) being fixedly connected to a No. 1 low-speed motor (8), the output end of the No. 1 low-speed motor (8) being fixedly connected to the end of the spiral shaft (5), a plurality of sorting through holes (9) being provided on the lower end surface of the sorting trough body (1), the lower end surface of the sorting trough body (1) being fixedly connected to an inclined discharge frame (10), two reciprocating screws (11) being rotatably connected between the two support bases (2), the two reciprocating screws (11) being both threadedly connected to a reciprocating guide block (12), and the two reciprocating guide blocks (12) being fixedly connected to a high-pressure water gun (13); The ore feeding plate (3) is provided with a uniform ore feeding component, and the upper end surface of the sorting trough body (1) is fixedly connected with an adjustable protection component.

2. A spiral classifier for mineral processing according to claim 1, characterized in that: A plurality of cleaning scrapers (14) are fixedly connected to the spiral conveying blade (6), and the cleaning scrapers (14) are in contact with the inner wall of the sorting tank body (1).

3. The spiral classifier for mineral processing according to claim 1, characterized in that: The sorting assembly further comprises two rotating motors (15) fixedly connected to the support base (2), the output ends of the two rotating motors (15) being respectively fixedly connected to the ends of the two reciprocating screws (11), the upper end surfaces of the two reciprocating guide blocks (12) being fixedly connected to rotating brackets (16), the upper ends of the rotating brackets (16) being rotatably connected to limiting rollers (17), and the lower end surface of the sorting tank body (1) being fixedly connected to two limiting guide rails (18), the limiting rollers (17) matching the inner sides of the limiting guide rails (18).

4. The spiral classifier for mineral processing according to claim 1, characterized in that: The uniform ore feeding assembly comprises a plurality of accommodating holes (19) formed on the ore feeding plate (3), wherein the plurality of accommodating holes (19) are rotatably connected to conveying rollers (20), the ends of the plurality of conveying rollers (20) pass through the side wall of the protective support frame (4) and are respectively fixedly connected to a first synchronous wheel (21) and a second synchronous wheel (22), wherein the first synchronous wheel (21) and the second synchronous wheel (22) are connected by a synchronous belt (23), and the ends of two of the conveying rollers (20) are fixedly connected to a transfer gear (24), the outer wall of the protective support frame (4) is fixedly connected to a second fixed bracket (25), the second fixed bracket (25) is fixedly connected to a second low-speed motor (26), the output end of the second low-speed motor (26) is fixedly connected to a main gear (27), and the main gear (27) and the two transfer gears (24) are meshed with each other.

5. The spiral classifier for mineral processing according to claim 1, characterized in that: The adjustable protection assembly comprises two concave slide rails (28) fixedly connected to the upper end surface of the sorting trough body (1), a plurality of sliding blocks (29) are slidably connected to the inner sides of the two concave slide rails (28), and an arc-shaped support rod (30) is fixedly connected between the plurality of sliding blocks (29) in the two concave slide rails (28), and a plurality of protection curtains (31) are fixedly connected between the plurality of arc-shaped support rods (30), wherein an electric telescopic rod (32) is fixedly connected to the lower end of one of the arc-shaped support rods (30), and an end of the arc-shaped support rod (30) close to the ore feeding plate (3) is fixedly connected to the upper end surface of the concave slide rail (28), and a locking pin (33) is fixedly connected to the output end of the electric telescopic rod (32), and a locking frame (34) is fixedly connected to the outer wall of the reciprocating guide block (12), and a plug hole is provided on the locking frame (34), and the locking pin (33) matches the plug hole.

6. The spiral classifier for mineral processing according to claim 1, characterized in that: The two opposite side walls of the inclined material discharge frame (10) are both provided with strip-shaped through holes (35), and the high-pressure water gun (13) and the strip-shaped through holes (35) are located on the same horizontal plane.

7. The spiral classifier for mineral processing according to claim 4, characterized in that: The outer wall of the conveying roller (20) is provided with a plurality of friction protrusions (36), and the plurality of friction protrusions (36) are evenly arranged at equal distances on the outer wall of the conveying roller (20).

8. The spiral classifier for mineral processing according to claim 5, characterized in that: The protective curtain (31) is made of a highly elastic and bendable TPE material.

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