Center transmission concentration device

Abstract

The utility model relates to the technical field of slurry concentrators, in particular to a central transmission concentration device, which comprises a concentration tank, a main beam, a mud scraping mechanism and a mud discharging mechanism, a mud collecting tank is mounted at the bottom of the concentration tank, the main beam is fixedly mounted at the top end of the concentration tank, and the mud scraping mechanism comprises a driving shaft, a driving component and a plurality of rake frames. The sludge discharging mechanism comprises a connecting shaft, a spiral conveying blade and an auxiliary discharging assembly, an arc-shaped sludge scraping plate and a plurality of scraping teeth on the arc-shaped sludge scraping plate are arranged, sludge accumulated at the bottom of an inner cavity of the concentration tank can be scraped by the scraping teeth, and the sludge can move along with the arc-shaped sludge scraping plate under the pushing of the arc-shaped sludge scraping plate; meanwhile, the arc-shaped sludge scraping plate can play a role in guiding and limiting the sludge, and the speed of the sludge entering the sludge collecting tank can be increased, so that the sludge can quickly enter the sludge collecting tank, and the sludge discharging efficiency is favorably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slurry thickener, specifically is center drive thickening device. BACKGROUND

[0002] The center drive thickener is mainly used for the dehydration treatment system of wet separation concentrate in the mineral separation process, and is used for the dehydration of the first stage - thickening;

[0003] The working principle of the center drive thickening machine depends on the movement of the rake, and the rake is driven by the transmission mechanism to make circular motion in the pool, and the ore pulp is stirred and thickened. Solid particles gradually settle at the bottom of the pool to form thickened products; and the liquid is discharged through the annular overflow groove to realize solid-liquid separation.

[0004] The bottom of the existing center drive thickening device is conical or flat, and the sludge at the bottom of the thickening pool is mainly pushed by a plurality of mud scraping plates. For the thickening pool with a reverse conical bottom, the sludge scraped by the mud scraping plate can flow into the sludge collecting groove along the conical shape, and for the thickening pool with a flat bottom, since there is a gap between the adjacent two mud scraping plates, the sludge scraped by the mud scraping plate is not easy to quickly enter the sludge collecting groove, resulting in low sludge discharge efficiency. In view of this problem, a center drive thickening device is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing center drive thickening device to solve the problem in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The center drive thickening device comprises a thickening pool, a sludge collecting groove is installed at the bottom of the thickening pool, a main beam, a mud scraping mechanism and a sludge discharging mechanism, and the main beam is fixedly installed at the top end of the thickening pool;

[0008] The mud scraping mechanism comprises a driving shaft, a driving assembly and a plurality of rake frames, the driving shaft is rotatably arranged on the main beam through a bearing, the driving assembly is installed between the driving shaft and the main beam, and the plurality of rake frames are installed at the bottom end surface of the driving shaft in a ring shape at equal intervals;

[0009] The sludge discharging mechanism comprises a connecting shaft, a spiral conveying blade and an auxiliary discharging assembly, the connecting shaft is fixedly installed at the bottom end of the driving shaft, the bottom end of the connecting shaft extends into the inside of the sludge collecting groove, the spiral conveying blade is fixedly installed on the surface of the connecting shaft, and the auxiliary discharging assembly is located in the inside of the sludge collecting groove and is fixedly installed on the surface of the driving shaft.

[0010] As a further scheme of the utility model: each harrow frame includes arc-shaped mud scraping plate, multiple scraping teeth and multiple grating, one end of arc-shaped mud scraping plate is fixedly connected with driving shaft, the bottom end of arc-shaped mud scraping plate is in contact with the bottom of the inner chamber of thickening tank, multiple scraping teeth are equidistantly fixed on one side of arc-shaped mud scraping plate, multiple mounting seats are equidistantly fixedly installed on the top end of arc-shaped mud scraping plate.

[0011] As a further scheme of the utility model: every arc-shaped mud scraping plate is fixed with a plurality of mounting seats on the side away from the multiple scraping teeth, every mounting seat is rotatably connected with a rotating rod through a bearing in the inside, the bottom end surface of every rotating rod is fixed with a U-shaped seat, and a wheel is rotatably arranged in the middle part of every U-shaped seat.

[0012] As a further scheme of the utility model: the auxiliary discharging assembly comprises multiple inclined scrapers and multiple connecting rods, one end of every connecting rod is connected with the driving shaft, the other end of every connecting rod is connected with an inclined scraper, and the side, away from the connecting rod, of every inclined scraper is in contact with the inner wall of the mud collecting groove.

[0013] As a further scheme of the utility model: the driving assembly comprises a worm wheel, a worm, a motor and two mounting plates, the worm wheel is fixedly installed at the top end of the driving shaft, the two mounting plates are fixedly installed above the main beam, the worm is rotatably arranged between the two mounting plates, the motor is installed on the main beam, the output end of the motor is fixedly connected with one end of the worm, and the worm and the worm wheel are in meshing engagement.

[0014] As a further scheme of the utility model: the bottom end of the main beam is fixedly connected with a flow stabilizing cylinder, the flow stabilizing cylinder is sleeved outside the driving shaft, a liquid supply pipe is installed on the thickening tank, and one end of the liquid supply pipe is in communication with the flow stabilizing cylinder.

[0015] As a further scheme of the utility model: the surface of the driving shaft is fixedly connected with a conical flow guide block, the conical flow guide block is located below the flow stabilizing cylinder, and multiple flow guide plates are equidistantly installed on the surface of the conical flow guide block.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1、The center transmission thickening device, through the arc-shaped mud scraping plate and the multiple scraping teeth on the arc-shaped mud scraping plate, the scraping teeth can scrape the sludge accumulated on the bottom of the inner chamber of the thickening tank, the sludge can move along with the arc-shaped mud scraping plate under the pushing of the arc-shaped mud scraping plate, the arc-shaped mud scraping plate can guide and limit the sludge, the speed of the sludge entering the mud collecting groove can be improved, the sludge can quickly enter the inside of the mud collecting groove, and the sludge discharge efficiency is improved.

[0018] 2. The center transmission concentration device, a plurality of mounting seats are arranged at the top end of the arc-shaped mud scraping plate, the stirring and mixing effect of the sludge can be achieved, the sludge settling is accelerated, and the solid-liquid separation effect is enhanced, meanwhile, a plurality of wheels are arranged on the side, away from the scraping tooth, of the arc-shaped mud scraping plate, the wheels move along with the movement of the arc-shaped mud scraping plate, and the reliability of the mud scraping mechanism can be improved.

[0019] 3. The center transmission concentration device, the connecting shaft, the spiral conveying blade and the inclined scraper are arranged, the spiral conveying blade and the inclined scraper can be driven to rotate by the connecting shaft when the driving shaft rotates, the sludge can be scraped again when the inclined scraper rotates, the primary anti-blocking effect is achieved, the sludge discharge efficiency is improved through the rotation of the spiral conveying blade, and the second anti-blocking effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model.

[0021] Figure 2 It is an enlarged structural schematic view of part A in the utility model. Figure 1

[0022] Figure 3 It is a sectional structural schematic view of the concentration tank in the utility model.

[0023] Figure 4 It is an enlarged structural schematic view of part B in the utility model. Figure 3

[0024] Figure 5 It is a structural schematic view of the harrow frame in the utility model. Figure 1

[0025] Figure 6 It is an enlarged structural schematic view of part C in the utility model. Figure 5

[0026] Figure 7 It is a structural schematic view of the harrow frame in the utility model. Figure 2

[0027] Wherein: 11, the concentration tank; 12, the main beam; 13, the sludge collecting groove; 14, the driving shaft; 15, the worm gear; 16, the worm; 17, the mounting plate; 18, the motor; 19, the arc-shaped mud scraping plate; 20, the scraping tooth; 21, the grid; 22, the mounting seat; 23, the rotating rod; 24, the U-shaped seat; 25, the wheel; 26, the steady flow cylinder; 27, the liquid supply pipe; 28, the conical flow guide block; 29, the flow guide plate; 30, the connecting shaft; 31, the spiral conveying blade; 32, the inclined scraper; 33, the connecting rod. DETAILED DESCRIPTION

[0028] ​​​​​The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0029] The present invention provides the following preferred embodiments:

[0030] Example 1, as Figures 1-7 As shown, the central drive thickening device includes a thickening tank 11, a sludge collection trough 13 installed at the bottom of the thickening tank 11 for discharging sludge, and also includes a main beam 12, a sludge scraping mechanism and a sludge discharge mechanism. The main beam 12 is fixedly installed at the top of the thickening tank 11.

[0031] The sludge scraping mechanism includes a drive shaft 14, a drive assembly, and multiple rake frames. The drive shaft 14 is rotatably mounted on the main beam 12 via bearings. The drive assembly is installed between the drive shaft 14 and the main beam 12. Multiple rake frames are installed in a ring at equal intervals on the bottom surface of the drive shaft 14. The drive assembly can drive the drive shaft 14 to rotate, thereby driving the multiple rake frames mounted on the drive shaft 14 to rotate.

[0032] The sludge discharge mechanism includes a connecting shaft 30, a spiral conveying blade 31, and an auxiliary feeding assembly. The connecting shaft 30 is fixedly installed at the bottom end of the drive shaft 14, and the bottom end of the connecting shaft 30 extends into the interior of the sludge collection trough 13. The spiral conveying blade 31 is fixedly installed on the surface of the connecting shaft 30. The auxiliary feeding assembly is located inside the sludge collection trough 13 and is fixedly installed on the surface of the drive shaft 14.

[0033] When the drive shaft 14 rotates, it can drive the spiral conveying blades 31 and the auxiliary feeding assembly to rotate through the connecting shaft 30. When the auxiliary feeding assembly rotates, it can scrape the sludge off again, achieving the initial anti-clogging effect. The rotation of the spiral conveying blades 31 can improve the sludge discharge efficiency, achieving the second anti-clogging effect.

[0034] like Figures 1-7 As shown, each rake frame includes an arc-shaped scraper 19, multiple scraper teeth 20, and multiple grid bars 21. One end of the arc-shaped scraper 19 is fixedly connected to the drive shaft 14, and the bottom end of the arc-shaped scraper 19 contacts the bottom of the inner cavity of the thickener 11. The multiple scraper teeth 20 are equidistantly fixed on one side of the arc-shaped scraper 19. Specifically, each scraper tooth 20 is installed on the inner side of the arc-shaped scraper 19, and multiple mounting seats 22 are equidistantly fixed on the top of the arc-shaped scraper 19.

[0035] By setting the arc-shaped mud scraping plate 19 and the plurality of scraping teeth 20 on the arc-shaped mud scraping plate 19, the accumulated sludge at the bottom of the thickening tank 11 can be scraped up by the scraping teeth 20, and the sludge can be moved along with the arc-shaped mud scraping plate 19 under the pushing of the arc-shaped mud scraping plate 19, and the arc-shaped mud scraping plate 19 can guide and limit the sludge, thereby improving the speed of the sludge entering the sludge collecting tank 13, enabling the sludge to quickly enter the inside of the sludge collecting tank 13, and being beneficial to improving the sludge discharge efficiency.

[0036] By setting the plurality of mounting seats 22 at the top end of the arc-shaped mud scraping plate 19, the mixing effect of the sludge can be achieved, the ore pulp flocculating agent is mixed, the thickening is realized, and the settling of the sludge is accelerated, thereby enhancing the solid-liquid separation effect.

[0037] As shown in Figures 1-7 each arc-shaped mud scraping plate 19 is fixed with a plurality of mounting seats 22 on the side away from the plurality of scraping teeth 20, each mounting seat 22 is rotatably connected with a rotating rod 23 through a bearing in the inside, the bottom end face of each rotating rod 23 is fixed with a U-shaped seat 24, and each U-shaped seat 24 is rotatably provided with a wheel 25 in the middle part. By setting the plurality of wheels 25 on the side of the arc-shaped mud scraping plate 19 away from the scraping teeth 20, the wheels 25 move along with the movement of the arc-shaped mud scraping plate 19, thereby increasing the reliability of the arc-shaped mud scraping plate 19, and further increasing the reliability of the sludge scraping mechanism.

[0038] As shown in Figures 1-7 the auxiliary discharging assembly includes a plurality of inclined scraping plates 32 and a plurality of connecting rods 33, one end of each connecting rod 33 is connected with the driving shaft 14, the other end of each connecting rod 33 is connected with an inclined scraping plate 32, and the side of each inclined scraping plate 32 away from the connecting rod 33 is in contact with the inner wall of the sludge collecting tank 13. The driving shaft 14 can drive the inclined scraping plate 32 to rotate through the connecting rod 33 while rotating, and the inclined scraping plate 32 can scrape the sludge when rotating, thereby achieving the effect of preventing blockage.

[0039] As shown in Figures 1-7 the driving assembly includes a worm gear 15, a worm shaft 16, a motor 18 and two mounting plates 17, the worm gear 15 is fixedly installed at the top end of the driving shaft 14, the two mounting plates 17 are fixedly installed above the main beam 12, the worm shaft 16 is rotatably arranged between the two mounting plates 17, the motor 18 is installed on the main beam 12, the output end of the motor 18 is fixedly connected with one end of the worm shaft 16, and the worm shaft 16 and the worm gear 15 are in meshing engagement.

[0040] When it is necessary to rotate the driving shaft 14, the motor 18 is controlled to work, the motor 18 can drive the worm shaft 16 between the two mounting plates 17 to rotate, the worm shaft 16 and the worm gear 15 are in meshing engagement, so that the worm shaft 16 can drive the worm gear 15 to rotate when rotating, thereby realizing the rotation of the driving shaft 14.

[0041] As Figures 1-7 shown, the bottom end of the main beam 12 is fixed with a flow stabilizing cylinder 26, the flow stabilizing cylinder 26 is sleeved on the outside of the driving shaft 14, the thickening tank 11 is provided with a liquid supply pipe 27, one end of the liquid supply pipe 27 is communicated with the flow stabilizing cylinder 26, in use, the liquid supply pipe 27 is used for conveying the slurry, the slurry is conveyed to the inside of the flow stabilizing cylinder 26, the flow stabilizing cylinder 26 can make the slurry slowly inject into the inside of the thickening tank 11, after thickening, the sludge falls to the bottom of the thickening tank 11 under the action of gravity, and the clarified liquid overflows upwards.

[0042] As Figures 1-7 shown, the surface of the driving shaft 14 is fixed with a conical flow guide block 28, the conical flow guide block 28 is located below the flow stabilizing cylinder 26, a plurality of flow guide plates 29 are equidistantly installed on the surface of the conical flow guide block 28, the conical flow guide block 28 and the flow guide plate 29 can guide and convey the slurry, so that the slurry can slowly enter the inside of the thickening tank 11.

[0043] The beneficial effects of the utility model are embodied in the above-mentioned preferred embodiments of the utility model, and are not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A central transmission concentration device comprising a concentration tank (11), the bottom of the concentration tank (11) is provided with a sludge collecting tank (13), characterized in that, The mud scraping mechanism comprises a driving shaft (14), a driving assembly and a plurality of rake frames, the driving shaft (14) is rotatably arranged on the main beam (12) through a bearing, the driving assembly is arranged between the driving shaft (14) and the main beam (12), and the plurality of rake frames are arranged on the bottom end surface of the driving shaft (14) in a ring shape at equal intervals. The mud discharging mechanism comprises a connecting shaft (30), a spiral conveying blade (31) and an auxiliary discharging assembly, the connecting shaft (30) is fixedly arranged at the bottom end of the driving shaft (14) and extends into the inside of the mud collecting groove (13), the spiral conveying blade (31) is fixedly arranged on the surface of the connecting shaft (30), and the auxiliary discharging assembly is arranged in the inside of the mud collecting groove (13) and is fixedly arranged on the surface of the driving shaft (14). Each rake frame comprises an arc-shaped mud scraping plate (19), a plurality of scraping teeth (20) and a plurality of grid bars (21), one end of the arc-shaped mud scraping plate (19) is fixedly connected with the driving shaft (14), the bottom end of the arc-shaped mud scraping plate (19) is in contact with the bottom of the inner cavity of the thickening tank (11), the plurality of scraping teeth (20) are fixedly arranged on one side of the arc-shaped mud scraping plate (19) at equal intervals, and the plurality of mounting seats (22) are fixedly arranged on the top end of the arc-shaped mud scraping plate (19) at equal intervals.

2. The central drive concentration device of claim 1, wherein, Each arc-shaped mud scraping plate (19) is fixedly provided with a plurality of mounting seats (22) on the side away from the plurality of scraping teeth (20), each mounting seat (22) is rotatably connected with a rotating rod (23) through a bearing in the inside, the bottom end surface of each rotating rod (23) is fixedly provided with a U-shaped seat (24), and the middle part of each U-shaped seat (24) is rotatably provided with a wheel (25).

3. The central drive concentration device of claim 2, wherein, The auxiliary discharging assembly comprises a plurality of inclined scraping plates (32) and a plurality of connecting rods (33), one end of each connecting rod (33) is connected with the driving shaft (14), the other end of each connecting rod (33) is connected with an inclined scraping plate (32), and the side, away from the connecting rod (33), of each inclined scraping plate (32) is in contact with the inner wall of the mud collecting groove (13).

4. The central drive concentration device of claim 3, wherein, The driving assembly comprises a worm gear (15), a worm shaft (16), a motor (18) and two mounting plates (17), the worm gear (15) is fixedly arranged at the top end of the driving shaft (14), the two mounting plates (17) are fixedly arranged above the main beam (12), the worm shaft (16) is rotatably arranged between the two mounting plates (17), the motor (18) is arranged on the main beam (12), the output end of the motor (18) is fixedly connected with one end of the worm shaft (16), and the worm shaft (16) and the worm gear (15) are in engagement.

5. The central drive concentration device of claim 4, wherein, The bottom end of the main beam (12) is fixedly provided with a flow stabilizing cylinder (26), the flow stabilizing cylinder (26) is arranged on the outside of the driving shaft (14), and a liquid supply pipe (27) is arranged on the thickening tank (11) and in communication with the flow stabilizing cylinder (26).

6. The central drive concentration device of claim 5, wherein, The surface of the driving shaft (14) is fixedly provided with a conical flow guide block (28), the conical flow guide block (28) is located below the flow stabilizing cylinder (26), and a plurality of flow guide plates (29) are fixedly arranged on the surface of the conical flow guide block (28) at equal intervals.

7. The central drive concentration device of claim 6, wherein, ​

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