A spiral classifier for lead-zinc ore beneficiation

Abstract

This utility model relates to the field of spiral classifier technology, specifically to a spiral classifier for lead-zinc ore beneficiation. It includes a support frame, a drive mechanism mounted at one end of the support frame, a trough mounted above the support frame, and a spiral auger. The spiral auger includes a main shaft and a secondary shaft. One end of the main shaft is connected to the drive mechanism, and the other end is fixedly connected to a core rod. In this utility model, by adjusting component one, the spiral auger is supported by adjusting component one and adjusting component two. By adjusting component one to support the middle position of the spiral auger, the bending deformation of the spiral auger under its own weight is effectively reduced, as is the pressure and friction between the spiral auger and the inner wall of the trough. Furthermore, the limiting component ensures uninterrupted material conveying between the first and second augers.

Description

Technical Field

[0001] This utility model relates to the field of spiral classifier technology, specifically a spiral classifier for lead-zinc ore beneficiation. Background Technology

[0002] Lead-zinc ore needs to be crushed to a suitable particle size, typically less than 25 mm, and then screened. The undersize material (less than 5 mm) is dewatered and then enters the grinding stage, while the oversize product continues to participate in subsequent mineral processing. Spiral classifiers are commonly used ore screening devices, widely applicable in mineral processing plants to form closed-loop circulation processes with ball mills for classifying and diverting ore sands, or used in gravity concentrators to classify ore sands and fine mud, and in metal beneficiation processes for particle size classification of slurry. Existing spiral classifiers typically have auger lengths of 8 to 10 meters or more, with only a lifting structure at the tail end for adjusting the auger. When this is done, the middle of the auger is prone to bending under its own weight. To address this, a spiral classifier is proposed... Utility Model Content

[0003] The purpose of this invention is to provide a spiral classifier for lead-zinc ore beneficiation, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A spiral classifier for lead-zinc ore beneficiation includes a support frame, a drive mechanism mounted at one end of the support frame, a trough mounted above the support frame, and a spiral auger. The spiral auger includes a main shaft and a secondary shaft. One end of the main shaft is connected to the drive mechanism, and the other end of the main shaft is fixedly connected to a core rod. The secondary shaft is slidably sleeved with the core rod. A first auger blade is mounted on the outer wall of the main shaft, and a second auger blade is mounted on the outer wall of the secondary shaft. An adjustment assembly is fixedly connected to the middle of the support frame, and an adjustment assembly is mounted at the other end of the support frame. The first adjustment assembly supports the other end of the secondary shaft, and the second adjustment assembly supports one end of the core rod.

[0006] Furthermore, the adjustment component one includes:

[0007] One spanning frame is installed across the middle of the trough and fixedly mounted to the support frame;

[0008] The sleeve is movably installed at the top of the first strut.

[0009] The top end of the first pull rod is screwed into the sleeve, and a handwheel is fixedly installed at the top end of the first pull rod.

[0010] Shaft seat one is rotatably connected to the bottom end of pull rod one, and shaft seat one is rotatably sleeved to the other end of main shaft.

[0011] Furthermore, a venting groove is provided in the middle of the first span frame, and movable grooves are fixedly connected to both sides of the top of the first span frame located at the venting groove. The sleeve is slidably connected to the two movable grooves.

[0012] Furthermore, a limiting component is installed at one end of the core rod, and the limiting component is used to drive the secondary shaft to slide back and forth during rotation.

[0013] Furthermore, the adjustment component two includes a span frame two, which is fixedly installed at the other end of the support frame. A pull rod two is screwed to the top of the span frame one, and a bearing seat two is rotatably connected to the bottom of the pull rod two. An inner bushing is installed inside the bearing seat two, and the bearing seat two is rotatably sleeved with one end of the core rod part through the inner bushing.

[0014] Furthermore, the limiting component includes a base frame, which is fixedly installed between the base frame and the second shaft seat. Two rail frames are fixedly installed on the base frame, and two limiting rods are fixedly connected to the outer side wall of one end of the secondary shaft rod. One end of the limiting rod is used to move along the rail frame.

[0015] Furthermore, one end of the base is helical, and the pitch of the pitch of the base is the same as the pitch of the second hinge.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] By adjusting the settings of component one, the mixed liquid is input into the tank. The coarser mineral particles are pushed to one end of the tank by the auger and discharged, while the finer mineral particles overflow from the other end of the tank with the water flow, thus achieving the classification of the crushed or ball-milled ore. The auger is supported by adjusting components one and two. The support of component one in the middle of the auger effectively reduces the bending deformation of the auger under its own weight, reduces the pressure and friction between the auger and the inner wall of the tank, and the limiting component enables uninterrupted material conveying between auger blade two and auger blade one. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the spiral auger structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the adjustment component in this utility model;

[0021] Figure 4 This is a schematic diagram of the limiting component structure in this utility model;

[0022] Figure 5 This is a schematic diagram of the drive mechanism structure in this utility model.

[0023] In the diagram: 100, support frame; 200, trough; 210, adjustment component one; 211, span frame one; 212, tie rod one; 213, bearing seat one; 214, movable groove; 215, sleeve; 220, adjustment component two; 221, span frame two; 222, bearing seat two; 223, tie rod two; 300, drive mechanism; 400, auger; 410, main shaft; 411, core rod; 420, auger blade one; 430, secondary shaft; 431, limit rod; 440, auger blade two; 450, limit component; 451, seat frame; 452, rail frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 In this embodiment of the present invention, a spiral classifier for lead-zinc ore beneficiation includes a support frame 100, a drive mechanism 300 installed at one end of the support frame 100, a trough 200 installed above the support frame 100, and a spiral auger 400. The spiral auger 400 includes a main shaft 410 and a secondary shaft 430. One end of the main shaft 410 is connected to the drive mechanism 300, and the other end of the main shaft 410 is fixedly connected to a core rod 411. The secondary shaft 430 is slidably sleeved with the core rod 411. A first auger blade 420 is installed on the outer wall of the main shaft 410, and a second auger blade 440 is installed on the outer wall of the secondary shaft 430. An adjustment component 210 is fixedly connected to the middle position of the support frame 100, and an adjustment component 220 is installed at the other end of the support frame 100. The first adjustment component 210 is used to support the other end of the secondary shaft 430, and the second adjustment component 220 is used to support one end of the core rod 411.

[0026] Specifically, the mixed liquid is fed into the tank 200. The coarser mineral particles are pushed to one end of the tank 200 by the auger 400 and discharged, while the finer mineral particles overflow from the other end of the tank 200 with the water flow, thus classifying the crushed or ball-milled ore. When it is necessary to adjust the gap between the auger 400 and the inner wall of the tank 200, the auger 400 is supported by the adjustment component 1 210 and the adjustment component 2 220. The support of the middle position of the auger 400 by the adjustment component 1 210 effectively reduces the bending deformation of the auger 400 under its own weight, and reduces the pressure and friction between the auger 400 and the inner wall of the tank 200. Example

[0027] like Figures 2-4 As shown, in this embodiment, the adjustment component 210 includes a span frame 211, a pull rod 212, a shaft seat 213, and a sleeve 215. The span frame 211 spans the middle of the groove 200 and is fixedly installed with the support frame 100. The sleeve 215 is movably installed at the top of the span frame 211. The top of the pull rod 212 is screwed into the sleeve 215. A handwheel is fixedly installed at the top of the pull rod 212. The shaft seat 213 is rotatably connected to the bottom of the pull rod 212. The shaft seat 213 is rotatably sleeved with the other end of the main shaft 410. A venting groove is provided in the middle of the span frame 211. Movable grooves 214 are fixedly connected to both sides of the top of the span frame 211 at the venting groove. The sleeve 215 is slidably connected to the two movable grooves 214. A limiting component 450 is installed at one end of the core rod 411. The limiting component 450 is used to drive the secondary shaft 430 to slide back and forth when rotating.

[0028] In practice, the pull rod 212 is manually rotated, which drives the front end of the main shaft 410 to move up and down through the bearing 213, thus supporting the main shaft 410. Due to the setting of the limiting component 450, when the rear end of the second auger 440 deflects upward, the second auger 440 slides forward under its own weight and material resistance. When the rear end of the second auger 440 rotates to its highest point, the second auger 440 passes in front of the pull rod 212. When the rear end of the second auger 440 moves downward, the limiting component 450 drives the second auger 440 to... The core rod 411 moves backward, causing the rear end of the second auger 440 to move to the rear side of the front end of the first auger 420 when the second auger 440 rotates to its lowest position. This results in a partial overlap between the rear end of the second auger 440 and the front end of the first auger 420, ensuring that the second auger 440 does not interfere with the first pull rod 212 while avoiding a material conveying gap between the second auger 440 and the first auger 420, which would cause the material to remain at the rear end of the second auger 440, facilitating the transfer of material from the second auger 440 to the first auger 420.

[0029] like Figure 4As shown, in this embodiment, the adjustment component 220 includes a span frame 221, which is fixedly installed at the other end of the support frame 100. The top end of the span frame 211 is screwed with a pull rod 223, and the bottom end of the pull rod 223 is rotatably connected with a bearing seat 222. An inner bushing is installed inside the bearing seat 222, and the bearing seat 222 is rotatably sleeved with one end of the core rod 411 through the inner bushing. The limiting component 450 includes a seat 451, which is fixedly installed between the seat 451 and the bearing seat 222. Two rail frames 452 are fixedly installed on the seat 451. Two limiting rods 431 are fixedly connected to the outer wall of one end of the auxiliary shaft 430. One end of the limiting rod 431 is used to move along the rail frame 452. One end of the seat 451 is helical, and the pitch of the pitch of the seat 451 is the same as the pitch of the hinge blade 440.

[0030] In practice, when the auger 400 rotates, the secondary shaft 430 moves forward under its own weight and the resistance of the second auger blade 440. At this time, a gap is generated between the second auger blade 440 and the first auger blade 420 in the longitudinal direction, which makes it convenient for the rear end of the second auger blade 440 to pass over the first pull rod 212 when it rotates to the uppermost position. When the rear end of the second auger blade 440 deflects downward, it squeezes the limiting rod 431 through the rail frame 452, thereby driving the secondary shaft 430 to move backward, so that the rear end of the second auger blade 440 overlaps and intersects with the first auger blade 420 in the longitudinal direction, which facilitates the backward conveying of materials.

[0031] In this invention, the drive mechanism 300 is rotatably mounted at one end of the support frame 100. Its function and structure are existing technologies and will not be described in detail here.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spiral classifier for lead-zinc ore dressing, comprising a support frame (100), one end of the support frame (100) is provided with a driving mechanism (300), and a groove body (200) is installed above the support frame (100), characterized in that, It also includes a spiral auger (400), which includes a main shaft (410) and a secondary shaft (430). One end of the main shaft (410) is connected to the drive mechanism (300) for transmission, and the other end of the main shaft (410) is fixedly connected to a core rod (411). The secondary shaft (430) is slidably sleeved with the core rod (411). A first auger blade (420) is installed on the outer wall of the main shaft (410), and a second auger blade (440) is installed on the outer wall of the secondary shaft (430). An adjustment component (210) is fixedly connected to the middle position of the support frame (100), and an adjustment component (220) is installed on the other end of the support frame (100). The first adjustment component (210) is used to support the other end of the secondary shaft (430), and the second adjustment component (220) is used to support one end of the core rod (411).

2. The spiral classifier for lead-zinc ore beneficiation according to claim 1, characterized in that, The adjustment component one (210) includes: The first span (211) is spanned across the middle of the trough (200) and fixedly installed with the support frame (100); The sleeve (215) is movably installed at the top of the first strut (211). Pull rod one (212) is screwed to the sleeve (215) at its top end, and a handwheel is fixedly installed at the top end of pull rod one (212). Shaft seat 1 (213) is rotatably connected to the bottom end of pull rod 1 (212), and the shaft seat 1 (213) is rotatably sleeved to the other end of main shaft (410).

3. A spiral classifier for lead-zinc ore beneficiation according to claim 2, characterized in that, A venting groove is provided in the middle of the first span (211), and movable grooves (214) are fixedly connected to both sides of the top of the first span (211) at the venting groove. The sleeve (215) is slidably connected to the two movable grooves (214).

4. A spiral classifier for lead-zinc ore beneficiation according to claim 1 or 2, characterized in that, One end of the core rod (411) is equipped with a limiting component (450), which is used to drive the secondary shaft (430) to slide back and forth during rotation.

5. A spiral classifier for lead-zinc ore beneficiation according to claim 3, characterized in that, The second adjustment component (220) includes a second span frame (221), which is fixedly installed at the other end of the support frame (100). The top end of the first span frame (211) is screwed with a second pull rod (223), and the bottom end of the second pull rod (223) is rotatably connected with a second bearing seat (222). An inner bushing is installed inside the second bearing seat (222), and the second bearing seat (222) is rotatably sleeved with one end of the core rod (411) through the inner bushing.

6. A spiral classifier for lead-zinc ore beneficiation according to claim 4, characterized in that, The limiting component (450) includes a base (451), which is fixedly installed between the base (451) and the second shaft seat (222). Two rail frames (452) are fixedly installed on the base (451). Two limiting rods (431) are fixedly connected to the outer wall of one end of the auxiliary shaft (430). One end of the limiting rod (431) is used to move along the rail frame (452).

7. A spiral classifier for lead-zinc ore beneficiation according to claim 6, characterized in that, One end of the base (451) is spiral-shaped, and the pitch of the screw at one end of the base (451) is the same as the pitch of the second screw blade (440).

Images