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CN-122006299-A - Vertical sand silo suitable for concentrating and dewatering tailings

CN122006299ACN 122006299 ACN122006299 ACN 122006299ACN-122006299-A

Abstract

The invention discloses a vertical sand silo suitable for concentrating and dewatering tailings, which belongs to the technical field of tailings treatment and comprises a plurality of supporting legs, wherein the upper ends of the supporting legs are fixedly connected with a sedimentation tank, a plurality of second fixing frames are fixedly connected in the sedimentation tank, a central pipe is fixedly connected on the second fixing frames, the lower end of the sedimentation tank is fixedly connected with an extrusion mechanism, one end of the extrusion mechanism, which is far away from the sedimentation tank, is fixedly connected with a motor frame, a driving mechanism is arranged in the motor frame in a penetrating manner, and the upper end of the driving mechanism is fixedly connected with a mud scraping mechanism. The invention can change the water content of the tailings during discharge by using the extrusion mechanism, the driving mechanism and the mud scraping mechanism, so that the sand discharge concentration is stable, and meanwhile, the tailings hardening can be destroyed by filling high-pressure air into a tiny gap of the tailings, so that the tailings can be discharged through the extrusion pipe.

Inventors

  • CHEN TAO
  • DONG KE

Assignees

  • 山东辰柯工业装备有限公司

Dates

Publication Date
20260512
Application Date
20260202

Claims (8)

  1. 1. The vertical sand silo suitable for concentrating and dewatering tailings comprises a plurality of supporting legs (1) and is characterized in that the upper ends of the supporting legs (1) are fixedly connected with a sedimentation tank (2), a plurality of second fixing frames (7) are fixedly connected in the sedimentation tank (2), a central pipe (8) is fixedly connected to the second fixing frames (7), an extrusion mechanism (3) is fixedly connected to the lower end of the sedimentation tank (2), one end, far away from the sedimentation tank (2), of the extrusion mechanism (3) is fixedly connected with a motor frame (4), a driving mechanism (5) is arranged in the motor frame (4) in a penetrating manner, and a mud scraping mechanism (6) is fixedly connected to the upper end of the driving mechanism (5); The driving mechanism (5) comprises a main shaft (52) which is connected in a penetrating and rotating manner in the motor frame (4), the mud scraping mechanism (6) comprises a connecting rod (61) fixedly connected to the main shaft (52), one end, far away from the main shaft (52), of the connecting rod (61) is fixedly connected with a scraper (62), and a plurality of jet boxes (63) are fixedly connected to the scraper (62).
  2. 2. The vertical sand silo for concentrating and dewatering tailings according to claim 1, wherein the upper end of the settling tank (2) is fixedly connected with an overflow weir (10), one end of the settling tank (2) close to the overflow weir (10) is fixedly connected with an overflow trough (9), the outer side of the overflow trough (9) is fixedly connected with a second water outlet pipe (11), one side of the settling tank (2) is fixedly connected with a flocculant delivery pump (16), the settling tank (2) is internally fixedly connected with a transfusion tube (17), the output end of the flocculant delivery pump (16) is communicated with the transfusion tube (17), one end of the transfusion tube (17) away from the flocculant delivery pump (16) is fixedly connected with an annular pipeline (18), the lower end of the annular pipeline (18) is fixedly connected with a liquid outlet (19), a pair of fixing pipes (20) are fixedly connected with the liquid outlet (19), the fixing pipes (20) are fixedly connected with the settling tank (2), and the lower end of the supporting leg (1) is fixedly connected with a second fixing plate (25).
  3. 3. The vertical sand silo for concentrating and dewatering tailings according to claim 1, wherein the lower end of the central pipe (8) is fixedly connected with a plurality of brackets (23), one end of the bracket (23) away from the central pipe (8) is fixedly connected with a reflecting plate (24), the side wall of the settling tank (2) penetrates through the fixedly connected tailings input pipe (21), the tailings input pipe (21) penetrates through the fixedly connected central pipe (8), one end of the tailings input pipe (21) positioned in the central pipe (8) is fixedly connected with a bell mouth (22), two sides of the settling tank (2) are fixedly connected with air compressors (12), a third fixing frame (13) is fixedly connected in the settling tank (2), a rotary joint (15) is fixedly connected to the third fixing frame (13), one end of the main shaft (52) away from the motor frame (4) penetrates through the rotary joint (15), the output end of the air compressors (12) is communicated with the air compressors (14), and the air compressors (14) are communicated with the air compressors (15).
  4. 4. A vertical sand silo for concentrating and dewatering tailings according to claim 3, wherein the extruding mechanism (3) comprises an extruding pipe (31) fixedly connected to the bottom end of the settling tank (2), a water collecting shell (33) is fixedly connected to the outside of the extruding pipe (31), a first water outlet pipe (34) is fixedly connected to one side of the water collecting shell (33), and a filtering hole (32) is formed in the extruding pipe (31).
  5. 5. The vertical sand silo for concentrating and dewatering tailings according to claim 4, wherein the motor frame (4) comprises a first fixing frame (41) fixedly connected to the lower end of the extruding mechanism (3), tailings outlets (42) are formed in two sides of one end, close to the extruding mechanism (3), of the first fixing frame (41), sliding ways (43) are fixedly connected to two sides, close to the tailings outlets (42), of the first fixing frame (41), a driving motor (51) is fixedly connected to the lower end of the first fixing frame (41), the output end of the driving motor (51) is fixedly connected with a main shaft (52), threads (53) are formed in the lower end of the main shaft (52), nuts (54) are sleeved outside the threads (53), plane thrust ball bearings (55) are arranged at the upper ends of the nuts (54), and a top plate (56) is connected to the main shaft (52) in a penetrating and sliding mode.
  6. 6. The vertical sand silo for concentrating and dewatering tailings according to claim 5, wherein a first spring (57) is fixedly connected to the upper surface of the top plate (56), one end, away from the top plate (56), of the first spring (57) is fixedly connected with a sealing plate (58), a spiral fan blade (59) is fixedly connected to the position, close to the sealing plate (58), of the main shaft (52), a main shaft (52) is connected in a penetrating and sliding manner in the sealing plate (58), a connecting pipe (510) is arranged in the main shaft (52), a first air inlet pipe (511) is arranged at the upper end of the main shaft (52), and the connecting pipe (510) is communicated with the first air inlet pipe (511).
  7. 7. The vertical sand silo for concentrating and dewatering tailings according to claim 6, wherein a second air inlet pipe (616) is arranged in the connecting rod (61), the second air inlet pipe (616) is communicated with the connecting pipe (510), an air inlet hole (64) is arranged at the bottom of the air injection box (63), the connecting pipe (510) is communicated with the air inlet hole (64), one end of the air injection box (63) is obliquely arranged, an air injection hole (66) is arranged at the inclined end of the air injection box (63), a pair of sliding rods (65) are fixedly connected in the air injection box (63), sliding blocks (67) are connected to the sliding rods (65) in a penetrating and sliding manner, swinging arms (68) are connected to two ends of the sliding blocks (67) in a rotating manner, and one end, far away from the sliding blocks (67), of each swinging arm (68) is fixedly connected with a roller (69).
  8. 8. The vertical sand silo for concentrating and dewatering tailings according to claim 7, wherein the locking grooves (612) are fixedly connected to two sides in the air injection box (63), the rollers (69) and the locking grooves (612) are mutually clamped and matched, the first fixing plates (610) are fixedly connected to the upper surfaces of the swing arms (68), the second springs (611) are fixedly connected between the first fixing plates (610), the third springs (613) are fixedly connected to one ends, far away from the locking grooves (612), of the sliding blocks (67), the connecting rods (614) are fixedly connected to one ends, close to the third springs (613), of the sliding blocks (67), sealing plugs (615) are fixedly connected to one ends, far away from the sliding blocks (614), of the sliding blocks (615) and penetrate through sliding connection air injection holes (66).

Description

Vertical sand silo suitable for concentrating and dewatering tailings Technical Field The invention belongs to the technical field of tailing treatment, and particularly relates to a vertical sand silo suitable for tailing concentration and dehydration. Background The vertical sand bin for concentrating and dewatering tailings is one kind of large gravity settling equipment for treating tailings slurry produced after mineral separation and is one kind of cylindrical deep bin. The core working principle of the device is that the solid-liquid separation is realized by gravity, tailing pulp is fed from the center of the top of the bin, in the slow sedimentation process, solid tailing particles are settled to the bottom of the bin under the action of gravity and are concentrated into high-density paste, and meanwhile, clear water separated from the upper layer overflows naturally from an overflow weir at the periphery of the top of the bin and is recycled. In order to enhance the separation effect, a flocculant is often added to promote rapid flocculation and sedimentation of the fine particles. Through the process, the vertical sand bin can finally stably provide filling slurry with uniform concentration and qualified quality for an underground filling system, obviously reduce backwater load, and play an irreplaceable role in realizing tailing reduction, recycling and improving the recycling rate of mine wastewater. However, the existing vertical sand bin is easy to harden and difficult to put sand when treating fine tailings, and meanwhile, the water content of the tailings is difficult to accurately control, so that the sand concentration is unstable easily, and the quality of a filling body is influenced. Disclosure of Invention The invention aims to overcome the defects of the prior art and provide the vertical sand silo suitable for concentrating and dehydrating tailings. The vertical sand silo suitable for concentrating and dewatering tailings comprises a plurality of supporting legs, wherein the upper ends of the supporting legs are fixedly connected with a settling tank, the settling tank is internally fixedly connected with a plurality of second fixing frames, the second fixing frames are fixedly connected with a central pipe, the lower ends of the settling tank are fixedly connected with an extrusion mechanism, one end, far away from the settling tank, of the extrusion mechanism is fixedly connected with a motor frame, a driving mechanism is arranged in the motor frame in a penetrating manner, and the upper ends of the driving mechanisms are fixedly connected with a mud scraping mechanism; The driving mechanism comprises a main shaft which is connected in a penetrating and rotating manner in the motor frame, the mud scraping mechanism comprises a connecting rod which is fixedly connected to the main shaft, one end, away from the main shaft, of the connecting rod is fixedly connected with a scraper, and a plurality of jet boxes are fixedly connected to the scraper. Through above-mentioned technical scheme, can change the water content when the tailing is discharged through extrusion mechanism, actuating mechanism and mud scraping mechanism's use, make sand concentration stable, simultaneously can destroy the tailing hardening through filling the tiny gap of tailing with high-pressure gas in, make the tailing can be discharged through the extrusion pipe. Further, the upper end fixedly connected with overflow weir of settling cask, the one end fixedly connected with overflow launder that the settling cask is close to the overflow weir, the outside fixedly connected with second outlet pipe of overflow launder, one side fixedly connected with flocculating agent delivery pump of settling cask, fixedly connected with transfer line in the settling cask, the output and the transfer line of flocculating agent delivery pump are linked together, the one end fixedly connected with annular pipeline of flocculating agent delivery pump is kept away from to the transfer line, annular pipeline's lower extreme fixedly connected with liquid outlet, fixedly connected with a pair of fixed pipe on the liquid outlet, fixed pipe and settling cask fixedly connected with, the lower extreme fixedly connected with second fixed plate of supporting leg. Through the technical scheme, the flocculant can be mixed with the tailings, so that the tailings are precipitated faster, and the upper clean water flows into the overflow groove through the overflow weir and is discharged through the second water outlet pipe. Further, center tube lower extreme fixedly connected with a plurality of supports, the one end fixedly connected with reflecting plate of center tube is kept away from to the support, the setting tank lateral wall runs through fixedly connected with tailing input tube, the tailing input tube runs through fixedly connected with center tube, the one end fixedly connected with horn mouth that the tailing input tube is located t