Suspension type center transmission concentration mud scraper for sedimentation tank

Abstract

The suspension type center transmission concentration mud scraper comprises the sedimentation tank, the upper half part of the sedimentation tank is provided with a water inlet channel, an inclined pipe and a water collecting tank, the water inlet channel is communicated with the water inlet end of the inclined pipe, and the water outlet end of the inclined pipe is communicated with the water collecting tank; a scraping arm, a mud scraping plate and a mud collecting hopper are arranged at the lower half part of the sedimentation tank, the scraping arm is connected with the mud scraping plate, the scraping arm is connected with a rotating device, an automatic lifting adjusting device is arranged on the rotating device, a discharging device is arranged in the mud collecting hopper, and the discharging device is connected with the rotating device; the scraping arm of the sludge scraper automatically ascends and descends according to the thickness of the sludge at the bottom of the tank, free moisture in the sludge in the concentration tank can be further separated, the volume of the sludge is reduced, the concentration of the sludge is improved, and the concentrated sludge is discharged out of the tank.

Description

Technical Field

[0001] The invention belongs to the technical field of water purification, and in particular relates to a suspended central transmission thickening and scraping machine for a sedimentation tank. Background Art

[0002] Sedimentation tank is an efficient water treatment technology, which has been widely used in my country and many industrially developed countries. This water treatment technology adopts the bottom-up water inlet method. The inlet water is mixed sewage after flocculation. The upper part of the sedimentation tank is equipped with inclined pipes for mud and water separation. The clean water is collected by the upper water collection tank and then discharged. The sludge is concentrated and precipitated at the bottom of the tank. The sludge is pushed by the scraper and slowly flows along the bottom of the tank to the central mud hopper and is discharged out of the tank through the mud discharge pipe.

[0003] The existing concentrated sludge scraper is suitable for circular sedimentation tanks with larger diameters in sewage treatment. The circular sedimentation tank has a long reaction time, large tank capacity, high engineering cost, poor effluent quality, and poor sludge discharge effect. It has the following disadvantages: 1. There are many suspended solids in the sedimentation tank that cannot be settled at the bottom of the tank, which affects the effluent quality; 2. Sludge is easily blocked in the sludge collecting bucket and the sludge discharge pipe, thereby reducing the amount of sludge discharged and reducing the sludge discharge efficiency; 3. Sludge is easy to adhere to the scraper, resulting in poor scraping effect and shortening the service life of the scraper; 4. When the sludge at the bottom of the tank accumulates quickly and the amount of sludge is large, the scraper is easily damaged during the scraping process, and the load on the central transmission shaft is increased, affecting the overall operation of the equipment;

[0004] Therefore, our company has designed a new type of thickening and scraping machine, which can ensure the high quality of the effluent from the sedimentation tank and good sedimentation effect, and improve the thickening and sedimentation effect, the efficiency of sludge discharge and the efficiency of sewage treatment. Summary of the invention

[0005] The object of the present invention is to provide a suspended central transmission thickening and scraping machine for a sedimentation tank, which can ensure high effluent quality and good sedimentation effect of the sedimentation tank, and improve the thickening and sedimentation effect, the efficiency of mud discharge and the efficiency of sewage treatment.

[0006] The present invention provides a suspended central transmission thickening scraper for a sedimentation tank, comprising a sedimentation tank, wherein the upper part of the sedimentation tank is provided with a water inlet channel, an inclined pipe and a water collecting tank, wherein the water inlet channel is connected to the water inlet end of the inclined pipe, and the water outlet end of the inclined pipe is connected to the water collecting tank;

[0007] The lower part of the sedimentation tank is provided with a scraper arm, a scraper plate and a mud collecting bucket, the scraper arm is connected to the scraper plate, the scraper arm is connected to a rotating device, the rotating device is provided with an automatic lifting and adjusting device, the mud collecting bucket is provided with a feeding device, and the feeding device is connected to the rotating device.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: the scraper arm is driven to rotate by the rotating device, so that the scraper arm drives the scraper plate to scrape the sludge on the bottom of the sedimentation tank, and the sludge at the bottom of the sedimentation tank is discharged into the central sludge collecting bucket; the rotating device can be driven to move up and down by the automatic lifting and adjusting device, thereby driving the scraper plate to move up and down, so that the scraper plate can be automatically lifted and lowered according to the thickness of the sludge at the bottom of the tank, and the sludge can be scraped at different heights, which can avoid the situation that when there is a lot of sludge, the scraper plate at the bottom of the sedimentation tank is damaged during the scraping process and the sludge scraping effect is poor; at the same time, in the process of automatic lifting of the scraper plate, the free water in the sludge in the concentration tank can be further separated to reduce the volume of the sludge, increase the sludge concentration, and accelerate the sedimentation efficiency of the suspended matter in the water, which can ensure the high quality of the effluent from the sedimentation tank and the good sedimentation effect of the sedimentation tank; by arranging a feeding device in the sludge collecting bucket, it can be avoided that the sludge is easily blocked in the sludge collecting bucket and the sludge discharge pipe, thereby improving the treatment efficiency of the high-efficiency sedimentation tank.

[0009] Furthermore, the sedimentation tank comprises a partition wall 1, a partition wall 2, a top wall, a bottom wall, a side wall 1 and a side wall 2, a water inlet channel is provided between the partition wall 1 and the partition wall 2, the partition wall 2 is connected to the top wall, and the partition wall 1 is connected to the bottom wall;

[0010] The sedimentation tank is provided with a clear water area, an inclined pipe area, a water distribution area and a mud accumulation area. The side wall two is connected with the partition wall two, the side wall one and the top wall. The clear water area and the inclined pipe area are arranged in the area surrounded by the side wall two, the partition wall two and the side wall one. The inclined pipe area is arranged below the clear water area, the water distribution area is arranged below the inclined pipe area, the mud accumulation area is arranged below the water distribution area, the inclined pipe is arranged in the inclined pipe area, and a plurality of inclined pipe support beams are arranged at the bottom of the inclined pipe. The inclined pipe may be an inclined plate.

[0011] The beneficial effect of adopting the above-mentioned further technical scheme is that: after the sewage passes over the partition wall, it enters the sedimentation tank from the water inlet channel, which can reduce the impact of the incoming water on the sludge at the bottom of the sedimentation tank, ensure the clarity of the effluent, and at the same time extend the movement trajectory of the water flow in the tank, effectively increase the hydraulic retention time, and improve the sedimentation effect of the sewage; the sewage enters the inclined pipe area from the water inlet channel for mud and water separation, the clean water is discharged to the outside of the tank through the clean water area, and the sludge is discharged to the outside of the tank through the mud accumulation area.

[0012] Further, the water inlet end of the inclined tube is communicated with the water inlet channel, the water collecting tank is arranged on the second side wall, the water collecting tank is arranged above the inclined tube, and the water outlet end of the inclined tube is communicated with the water collecting tank;

[0013] Preferably, the inclined tube is arranged in the inclined tube area B at an inclination of 45°-60°.

[0014] The beneficial effect of adopting the above further technical solution is that by setting the inclined pipe, the water collecting tank is set above the inclined pipe, so that the sewage passes through the inclined pipe for mud and water separation, the sediment slides down along the pipe wall into the mud accumulation area, and the clean water after mud and water separation is discharged from the water collecting tank on the side wall to the outside of the pool

[0015] Further, the rotating device includes a driving device 1 and a transmission shaft, the driving device 1 is connected to the transmission shaft, the driving device 1 is arranged at the center of the top of the sedimentation tank, and the transmission shaft passes through the top of the sedimentation tank and is connected to the scraper arm;

[0016] Preferably, a support shaft is provided in the mud collecting bucket, a thread is provided in the support shaft, the transmission shaft is threadedly connected with the support shaft, and the transmission shaft is rotatably provided in the support shaft;

[0017] More preferably, the linear speed of the transmission shaft is 1-3 m / min.

[0018] The beneficial effect of adopting the above further technical solution is that: the drive shaft is driven to rotate by the driving device, so that the drive shaft drives the scraper to scrape the bottom of the sedimentation tank, and pushes the sludge along the bottom of the tank into the central mud collecting bucket.

[0019] Furthermore, the automatic lifting and adjusting device comprises a support frame, a second driving device, a threaded rod, a polished rod and a moving part, the support frame is connected to the top of the sedimentation tank, one end of the threaded rod is rotatably connected to the top of the sedimentation tank, the other end of the threaded rod is rotatably connected to the support frame, one end of the polished rod is connected to the sedimentation tank, and the other end of the polished rod is connected to the support frame;

[0020] The moving part is arranged on the threaded rod and the smooth rod, a nut is arranged at one end of the moving part connected to the threaded rod, the nut is threadedly connected to the threaded rod, the nut is rotatably connected to the moving part, a ball bearing is arranged between the moving part and the nut, the driving device 1 and the driving device 2 can be driven by a motor or a motor and a worm gear, one end of the threaded rod is connected to the driving device 2, the driving device 1 is arranged on the moving part, and the transmission shaft passes through the moving part and is rotatably connected to the moving part.

[0021] The beneficial effect of adopting the above-mentioned further technical scheme is that: the threaded rod is driven to rotate by driving device 2, thereby driving the movable part to move on the threaded rod and the smooth rod, thereby driving driving device 1 to move up and down. When there is a lot of sludge, the scraper plate can first scrape off the sludge on the upper layer, and then scrape off the remaining sludge layer by layer. Damage to the scraper plate can be avoided, the service life of the scraper plate is increased, and the sludge discharge efficiency is improved.

[0022] Furthermore, a flushing pipe is provided on the scraper, and the flushing pipe is connected to the water collecting tank.

[0023] The beneficial effect of adopting the above further technical solution is that by arranging a flushing pipe on the scraper, the scraper can be flushed with precipitated clean water, thereby avoiding excessive accumulation of sludge on the scraper and improving the scraping effect of the scraper.

[0024] Furthermore, a plurality of vertically arranged concentrated pulp plates are provided on the scraper arm and the scraper plate, a pull rod is provided between the scraper arm and the transmission shaft, and the pull rod may be a steel cable; preferably, a plurality of suspended matter collecting pieces are provided on the concentrated pulp plate, and the suspended matter collecting pieces may be groove-shaped or trumpet-shaped, and holes are provided on the suspended matter collecting pieces; more preferably, the suspended matter collecting pieces are provided on the concentrated pulp plate, and the groove or trumpet mouth of the suspended matter collecting piece faces the mud collecting bucket.

[0025] The beneficial effects of adopting the above-mentioned further technical scheme are: by arranging a number of vertically arranged concentrated pulp plates on the scraper arm, the mud is disturbed and the sludge spirally sinks; by arranging a pull rod, the scraper plate can be prevented from shaking during the rotation process, thereby improving the stability of the scraper plate in scraping mud; the scraper arm of the scraper automatically rises and falls according to the thickness of the sludge at the bottom of the pool, and the automatic lifting and adjusting device drives the rotating device to move up and down during the rotation, and the suspended matter collecting part collects the suspended matter, and in the process of moving downward and rotating, it is beneficial to the sinking of the suspended matter in the water.

[0026] Furthermore, the scraper arm and the scraper plate are connected via a strip plate, and a triangular space is formed between the strip plate and the scraper arm or the scraper plate.

[0027] The beneficial effect of adopting the above further technical solution is that by providing the strip plate, the connection strength between the scraper arm and the scraper blade can be improved, thereby improving the stability of the scraper blade in scraping mud.

[0028] Furthermore, the feeding device comprises a stirring shaft, the stirring shaft is connected to the rotating device, and a stirring member is provided on the stirring shaft;

[0029] The stirring members are staggered vertical rods or blades.

[0030] The beneficial effect of adopting the above-mentioned further technical scheme is that by setting a stirring shaft, the rotating device can drive the scraper blade to scrape the mud, thereby driving the stirring shaft to rotate in the mud collecting bucket, thereby stirring the sludge in the mud collecting bucket to avoid the sludge clogging in the mud collecting bucket. By setting a stirring member on the stirring shaft, the stirring member is a staggered vertical rod or blade, which can further improve the sludge discharge rate of the sludge in the mud collecting bucket.

[0031] Further, a power transmission rod 1 is provided at the lower side of the stirring shaft, a gear 1 is provided on the power transmission rod 1, a clamping seat is provided at the bottom of the mud collecting bucket, a power transmission channel is provided in the clamping seat, a power transmission rod 2 is rotatably provided inside the power transmission channel, a gear 2 and a conical tooth 1 are provided on the power transmission rod 2, one end of the power transmission rod 1 provided with the gear 1 is slidably provided in the sub-power transmission channel, the gear 1 is meshed with the gear 2, and the length of the gear 1 is longer than the length of the gear 2;

[0032] A mud discharge pipe is provided at the bottom of the mud collecting bucket, a valve is provided on the mud discharge pipe, a screw is provided in the mud discharge pipe, one end of the screw is provided with a second conical tooth, the screw is rotatably connected to the clamping seat, one end of the screw provided with the second conical tooth is provided in the power transmission channel, and the first conical tooth is meshed with the second conical tooth;

[0033] Preferably, the screw is provided with spiral blades.

[0034] The beneficial effect of adopting the above-mentioned further technical solution is that: by arranging a power transmission rod 1 on the lower side of the stirring shaft, when the power transmission rod 1 moves upward or downward in the power transmission channel, gear 1 and gear 2 can always be in a meshing state, thereby driving the power transmission rod 2 to rotate, and through the meshing of conical tooth 1 and conical tooth 2, the screw can be stirred in the mud discharge pipe, which can avoid the situation where sludge blocks the mud discharge pipe. By arranging spiral blades on the screw, the stirring effect in the mud discharge pipe can be further improved, and the sludge discharge efficiency of the sludge in the mud discharge pipe can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a suspended center-driven thickening scraper for a sedimentation tank;

[0036] Figure 2 This is an enlarged view of the mud bucket structure;

[0037] Figure 3 Schematic diagram of the suspended matter collection structure Figure 1 ;

[0038] Figure 4 Schematic diagram of the suspended matter collection structure Figure 2 ;

[0039] Figure 5 Schematic diagram of the screw structure;

[0040] 1. Sedimentation tank; 11. Partition wall 1; 12. Partition wall 2; 13. Top wall; 14. Bottom wall; 15. Side wall 1; 16. Side wall 2; 161. Water collecting tank; A. Clean water area; B. Inclined pipe area; C. Water distribution area; D. Mud accumulation area; 2. Inclined pipe; 21. Inclined pipe support beam; 22. Fixing piece; 23. Water inlet channel; 3. Scraper arm; 4. Scraper plate; 41. Flushing pipe; 42. Concentrated pulp plate; 421. Suspended matter collecting piece; 422. Hole; 43. Pull rod; 44. Strip plate; 5. Mud collecting bucket; 51. Support shaft; 6. Rotation Device; 61. Driving device 1; 62. Transmission shaft; 7. Automatic lifting and adjusting device; 71. Support frame; 72. Driving device 2; 73. Threaded rod; 74. Light rod; 75. Moving part; 8. Unloading device; 81. Stirring shaft; 82. Stirring member; 83. Power transmission rod 1; 831. Gear 1; 84. Power transmission rod 2; 841. Gear 2; 842. Conical gear 1; 85. Screw; 851. Conical gear 2; 852. Spiral blade; 86. Mud discharge pipe; 87. Clamping seat; 871. Power transmission channel. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0042] Embodiment 1:

[0043] The present invention discloses a suspended central transmission thickening scraper for a sedimentation tank, comprising a sedimentation tank 1, wherein the upper part of the sedimentation tank 1 is provided with a water inlet channel 23, an inclined tube 2 and a water collecting tank 161, wherein the water inlet channel 23 is connected to the water inlet end of the inclined tube 2, and the water outlet end of the inclined tube 2 is connected to the water collecting tank 161; the lower part of the sedimentation tank 1 is provided with a scraping arm 3, a scraping plate 4 and a mud collecting bucket 5, wherein the scraping arm 3 is connected to the scraping plate 4, wherein the scraping arm 3 is connected to a rotating device 6, wherein an automatic lifting and adjusting device 7 is provided on the rotating device 6, wherein a material discharge device 8 is provided in the mud collecting bucket 5, and wherein the material discharge device 8 is connected to the rotating device 6. The scraper arm 3 is driven to rotate by the rotating device 6, so that the scraper arm 3 drives the scraper plate 4 to scrape the bottom of the sedimentation tank 1, and the sludge at the bottom of the sedimentation tank 1 is discharged into the sludge collecting bucket 5. The rotating device 6 can be driven to move up and down by the automatic lifting and adjusting device 7, thereby driving the scraper plate 4 to move up and down, so that the scraper plate 4 can automatically rise and fall according to the thickness of the sludge at the bottom of the tank, and scrape the sludge at different heights, which can avoid the scraper plate 4 at the bottom of the sedimentation tank 1 being damaged and having a poor scraping effect during the scraping process when there is a lot of sludge. At the same time, the free water in the sludge in the concentration tank can be further separated during the automatic lifting of the scraper plate 4, so as to reduce the volume of the sludge, increase the sludge concentration, and accelerate the sedimentation efficiency of the suspended matter in the sedimentation tank 1, so as to ensure that the effluent quality of the sedimentation tank 1 is high, and the sedimentation effect of the sedimentation tank 1 is good. By arranging the unloading device 8 in the sludge collecting bucket 5, it can be avoided that the sludge is easily blocked in the sludge collecting bucket 5 and the sludge discharge pipe 86, thereby improving the treatment efficiency of the sedimentation tank 1.

[0044] The sedimentation tank 1 comprises a partition wall 11, a partition wall 12, a top wall 13, a bottom wall 14, a side wall 15 and a side wall 16, a water inlet channel 23 is provided between the partition wall 11 and the partition wall 12, the partition wall 12 is connected to the top wall 13, and the partition wall 11 is connected to the bottom wall 14;

[0045] The sedimentation tank 1 is provided with a clear water area A, an inclined pipe area B, a water distribution area C and a mud accumulation area D. The side wall 16 is connected with the partition wall 12, the side wall 15 and the top wall 13. The clear water area A and the inclined pipe area B are arranged in the area surrounded by the side wall 16, the partition wall 12 and the side wall 15. The inclined pipe area B is arranged below the clear water area A, the water distribution area C is arranged below the inclined pipe area B, and the mud accumulation area D is arranged below the water distribution area C. The inclined pipe 2 is arranged in the inclined pipe area B. A plurality of inclined pipe support beams 21 are arranged at the bottom of the inclined pipe 2. The inclined pipe 2 can be an inclined plate.

[0046] After the sewage passes over the side wall 11, it enters the sedimentation tank 1 from the water inlet channel 23, which can reduce the impact of the incoming water on the sludge at the bottom of the sedimentation tank 1, ensure the clarity of the effluent, and at the same time extend the movement trajectory of the water flow in the tank, effectively increase the hydraulic retention time, and improve the sedimentation effect of the sewage; the sewage enters the inclined pipe area B from the water inlet channel 23 for mud and water separation, the clean water is discharged to the outside of the tank through the clean water area A, and the sludge is discharged to the outside of the tank through the mud accumulation area D.

[0047] The water inlet end of the inclined tube 2 is communicated with the water inlet channel 23, the water collecting tank 161 is arranged on the second side wall 16, the water collecting tank 161 is arranged above the inclined tube 2, and the water outlet end of the inclined tube 2 is communicated with the water collecting tank 161;

[0048] Preferably, the inclined tube 2 is arranged in the inclined tube area B at an angle of 45°-60°.

[0049] By setting the inclined pipe 2, the water collecting tank 161 is set above the inclined pipe 2, so that the sewage passes through the inclined pipe 2 for mud and water separation, and the sediment slides down along the pipe wall into the mud accumulation area D. The clean water after mud and water separation is discharged from the water collecting tank 161 on the side wall 16 to the outside of the pool.

[0050] The rotating device 6 includes a driving device 61 and a transmission shaft 62. The driving device 61 is connected to the transmission shaft 62. The driving device 61 is arranged at the center of the top of the sedimentation tank 1. The transmission shaft 62 passes through the top of the sedimentation tank 1 and is connected to the scraper arm 3. A fixing part 22 is arranged at the bottom of the inclined tube support beam 21. The fixing part 22 is rotatably connected to the transmission shaft 62. A support shaft 51 is arranged in the mud collecting bucket 5. A thread is arranged in the support shaft 51. The transmission shaft 62 is threadedly connected to the support shaft 51. The transmission shaft 62 is rotatably arranged in the support shaft 51. The linear speed of the transmission shaft 62 is 1-3m / min. The drive shaft 62 is driven to rotate by the driving device 61, so that the drive shaft 62 drives the scraper 4 along the bottom of the sedimentation tank 1 and pushes it into the central mud collecting bucket 5. By arranging a fixing part 22 at the bottom of the inclined tube support beam 21, a certain supporting force can be provided to the central drive shaft 62, thereby improving the stability of the rotating device 6. By arranging the support shaft 51, the drive shaft 62 can be further supported, thereby further improving the stability of the drive shaft 62.

[0051] The automatic lifting and adjusting device 7 includes a support frame 71, a driving device 72, a threaded rod 73, a light rod 74 and a moving member 75. The support frame 71 is connected to the top of the sedimentation tank 1, one end of the threaded rod 73 is rotatably connected to the top of the sedimentation tank 1, the other end of the threaded rod 73 is rotatably connected to the support frame 71, one end of the light rod 74 is connected to the sedimentation tank 1, and the other end of the light rod 74 is connected to the support frame 71; the moving member 75 is arranged on the threaded rod 73 and the light rod 74, and the moving member 75 is connected to the threaded rod 73. One end of the connection is provided with a nut, the nut is threadedly connected with the threaded rod 73, the nut is rotatably connected with the moving member 75, a ball bearing is provided between the moving member 75 and the nut, the driving device 1 61 and the driving device 2 72 can be driven by a motor or a motor and a worm gear, one end of the threaded rod 73 is connected with the driving device 2 72, the threaded rod 73 and the smooth rod 74 are provided with a moving member 75, the driving device 1 61 is provided on the moving member 75, and the transmission shaft 62 penetrates the moving member 75 and is rotatably connected with the moving member 75. The threaded rod 73 is driven to rotate by the driving device 2 72, thereby driving the moving member 75 to move on the threaded rod 73 and the smooth rod 74, thereby driving the driving device 1 61 to move up and down, so that when there is a lot of sludge, the scraper 4 first scrapes off the sludge on the upper layer, and then scrapes off the remaining sludge layer by layer, which can avoid the scraper 4 from being damaged, prolonging the service life of the scraper 4, thereby improving the sludge discharge efficiency.

[0052] The scraper 4 is provided with a flushing pipe 41, which is connected to the water collecting tank 161. By providing the flushing pipe 41 on the scraper 4, the scraper 4 can be flushed with the settled clean water, thereby avoiding excessive accumulation of sludge on the scraper 4 and improving the scraping effect of the scraper 4.

[0053] A plurality of vertically arranged concentrated pulp plates 42 are arranged on the scraper arm 3 and the scraper plate 4, a pull rod 43 is arranged between the scraper arm 3 and the transmission shaft 62, and the pull rod 43 may be a steel cable; preferably, a plurality of suspended matter collecting pieces 421 are arranged on the concentrated pulp plates 42, and the suspended matter collecting pieces 421 may be groove-shaped or trumpet-shaped, and a hole 422 is arranged on the suspended matter collecting piece 421; more preferably, the suspended matter collecting piece 421 is arranged on the concentrated pulp plates 42, and the groove or trumpet of the suspended matter collecting piece 421 faces the mud collecting bucket 5. By arranging a plurality of vertically arranged concentrated pulp plates 42 on the scraper arm 3, the mud is disturbed and the sludge spirally sinks; by arranging the pull rod 43, the scraper plate 4 can be prevented from shaking during the rotation process, thereby improving the stability of the scraper plate 4 in scraping the mud; the scraper arm 3 of the scraper automatically rises and falls according to the thickness of the sludge at the bottom of the pool, and the automatic lifting and adjusting device 7 drives the rotating device 6 to move up and down during the rotation, and the suspended matter collecting part 421 collects the suspended matter, and in the process of moving downward and rotating, it is beneficial to the sinking of the suspended matter in the water.

[0054] The scraper arm 3 and the scraper blade 4 are connected by a strip plate 44, and a triangular space is formed between the strip plate 44 and the scraper arm 3 or the scraper blade 4. By providing the strip plate 44, the connection strength between the scraper arm 3 and the scraper blade 4 can be improved, thereby improving the stability of the scraper blade 4 in scraping mud.

[0055] The unloading device 8 includes a stirring shaft 81, which is connected to the rotating device 6. A stirring member 82 is provided on the stirring shaft 81; the stirring member 82 is a staggered vertical rod or blade. By providing the stirring shaft 81, the rotating device 6 can drive the scraper 4 to scrape the mud, thereby driving the stirring shaft 81 to rotate in the mud collecting bucket 5, so as to stir the sludge in the mud collecting bucket 5, and avoid the sludge clogging in the mud collecting bucket 5. By providing the stirring member 82 on the stirring shaft 81, the stirring member 82 is a staggered vertical rod or blade, and the mud discharge rate of the sludge in the mud collecting bucket 5 can be further improved.

[0056] The lower side of the stirring shaft 81 is provided with a power transmission rod 83, and a gear 831 is provided on the power transmission rod 83. A clamping seat 87 is provided at the bottom of the mud collecting bucket 5, and a power transmission channel 871 is provided in the clamping seat 87. A power transmission rod 84 is rotatably provided inside the power transmission channel 871, and a gear 841 and a conical tooth 842 are provided on the power transmission rod 84. One end of the power transmission rod 83 provided with the gear 831 is slidably provided in the sub-power transmission channel 871, and the gear 831 and the gear 841 are connected to each other. The gear 1 831 is meshed with the gear 2 841, and the length of the gear 1 831 is longer than the length of the gear 2 841; a mud discharge pipe 86 is provided at the bottom of the mud collecting bucket 5, and a valve is provided on the mud discharge pipe 86, and a screw 85 is provided in the mud discharge pipe 86, and a conical tooth 2 851 is provided at one end of the screw 85, and the screw 85 is rotatably connected with the clamping seat 87, and one end of the screw 85 provided with the conical tooth 2 851 is provided in the power transmission channel 871, and the conical tooth 1 842 is meshed with the conical tooth 2 851; a spiral blade 852 is provided on the screw 85. By arranging a power transmission rod 83 on the lower side of the stirring shaft 81, when the power transmission rod 83 moves upward or downward in the power transmission channel 871, the gear 1 831 and the gear 2 841 can always be in a meshing state, thereby driving the power transmission rod 2 84 to rotate, and through the meshing of the conical tooth 1 842 and the conical tooth 2 851, the screw 85 can be stirred in the mud discharge pipe 86, which can prevent the mud from clogging the mud discharge pipe 86. By arranging a spiral blade 852 on the screw 85, the stirring effect in the mud discharge pipe 86 can be further improved, and the mud discharge efficiency of the sludge in the mud discharge pipe 86 can be further improved.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; 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. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A suspended central drive thickening scraper for a sedimentation tank, comprising a sedimentation tank (1), characterized in that: The upper part of the sedimentation tank (1) is provided with a water inlet channel (23), an inclined tube (2) and a water collecting tank (161); the water inlet channel (23) is in communication with the water inlet end of the inclined tube (2), and the water outlet end of the inclined tube (2) is in communication with the water collecting tank (161); The lower part of the sedimentation tank (1) is provided with a scraping arm (3), a scraping plate (4) and a mud collecting bucket (5); the scraping arm (3) is connected to the scraping plate (4); the scraping arm (3) is connected to a rotating device (6); an automatic lifting and adjusting device (7) is provided on the rotating device (6); a material discharge device (8) is provided in the mud collecting bucket (5); and the material discharge device (8) is connected to the rotating device (6).

2. The suspended central transmission thickening scraper for a sedimentation tank according to claim 1, characterized in that: The sedimentation tank (1) comprises a partition wall 1 (11), a partition wall 2 (12), a top wall (13), a bottom wall (14), a side wall 1 (15) and a side wall 2 (16); a water inlet channel (23) is provided between the partition wall 1 (11) and the partition wall 2 (12); the partition wall 2 (12) is connected to the top wall (13); and the partition wall 1 (11) is connected to the bottom wall (14); The sedimentation tank (1) is provided with a clear water area (A), an inclined pipe area (B), a water distribution area (C) and a mud accumulation area (D); the side wall (16) is connected to the partition wall (12), the side wall (15) and the top wall (13); the clear water area (A) and the inclined pipe area (B) are arranged in an area surrounded by the side wall (16), the partition wall (12) and the side wall (15); the inclined pipe area (B) is arranged below the clear water area (A); the water distribution area (C) is arranged below the inclined pipe area (B); the mud accumulation area (D) is arranged below the water distribution area (C); the inclined pipe (2) is arranged in the inclined pipe area (B); and a plurality of inclined pipe support beams (21) are arranged at the bottom of the inclined pipe (2).

3. The suspended central transmission thickening scraper for the sedimentation tank according to claim 2, characterized in that: The water inlet end of the inclined tube (2) is in communication with the water inlet channel (23); the water collecting trough (161) is arranged on the second side wall (16); the water collecting trough (161) is arranged above the inclined tube (2); and the water outlet end of the inclined tube (2) is in communication with the water collecting trough (161); Preferably, the inclined tube (2) is arranged in the inclined tube area (B) at an angle of 45°-60°.

4. The suspended central transmission thickening scraper for a sedimentation tank according to claim 1, characterized in that: The rotating device (6) comprises a driving device (61) and a transmission shaft (62), wherein the driving device (61) is connected to the transmission shaft (62), the driving device (61) is arranged at the center of the top of the sedimentation tank (1), and the transmission shaft (62) passes through the top of the sedimentation tank (1) and is connected to the scraper arm (3); Preferably, a support shaft (51) is provided in the mud collecting bucket (5), a thread is provided in the support shaft (51), the transmission shaft (62) is threadedly connected to the support shaft (51), and the transmission shaft (62) is rotatably provided in the support shaft (51); More preferably, the linear speed of the transmission shaft (62) is 1-3 m / min.

5. The suspended central transmission thickening scraper for a sedimentation tank according to claim 4, characterized in that: The automatic lifting and adjusting device (7) comprises a support frame (71), a second driving device (72), a threaded rod (73), a light rod (74) and a moving part (75), wherein the support frame (71) is connected to the top of the sedimentation tank (1), one end of the threaded rod (73) is rotatably connected to the top of the sedimentation tank (1), the other end of the threaded rod (73) is rotatably connected to the support frame (71), one end of the light rod (74) is connected to the top of the sedimentation tank (1), and the other end of the light rod (74) is connected to the support frame (71); The moving member (75) is arranged on the threaded rod (73) and the smooth rod (74); a nut is arranged at one end of the moving member (75) connected to the threaded rod (73); the nut is threadedly connected to the threaded rod (73); the nut is rotatably connected to the moving member (75); one end of the threaded rod (73) is connected to the second driving device (72); the first driving device (61) is arranged on the moving member (75); the transmission shaft (62) passes through the moving member (675) and is rotatably connected to the moving member (75).

6. The suspended central transmission thickening scraper for a sedimentation tank according to claim 1, characterized in that: The scraper blade (4) is provided with a flushing pipe (41), and the flushing pipe (41) is connected to the water collecting tank (161).

7. The suspended central transmission thickening scraper for a sedimentation tank according to claim 1, characterized in that: A plurality of concentrated pulp plates (42) are arranged on the scraper arm (3) and the scraper plate (4), and a pull rod (43) is arranged between the scraper arm (3) and the transmission shaft (62); Preferably, a plurality of suspended matter collecting members (421) are provided on the concentrated pulp plate (42), and the suspended matter collecting members (421) may be groove-shaped or trumpet-shaped, and the suspended matter collecting members (421) are provided with holes (422); More preferably, the suspended matter collecting member (421) is arranged on the concentrated pulp plate (42); and the notch or the bell mouth of the suspended matter collecting member (421) faces the mud collecting bucket (5).

8. The suspended central transmission thickening scraper for a sedimentation tank according to claim 1, characterized in that: The scraper arm (3) and the scraper plate (4) are connected via a strip plate (44), and a triangular space is formed between the strip plate (44) and the scraper arm (3) or the scraper plate (4).

9. The suspended central transmission thickening scraper for a sedimentation tank according to claim 1, characterized in that: The unloading device (8) comprises a stirring shaft (81), the stirring shaft (81) is connected to the rotating device (6), and a stirring member (82) is provided on the stirring shaft (81); The stirring members (82) are staggered vertical rods or blades.

10. The suspended central transmission thickening scraper for a sedimentation tank according to claim 9, characterized in that: A power transmission rod (83) is provided at the lower side of the stirring shaft (81), and a gear (831) is provided on the power transmission rod (83). A clamping seat (87) is provided at the bottom of the mud collecting bucket (5), and a power transmission channel (871) is provided in the clamping seat (87). A power transmission rod (84) is rotatably provided inside the power transmission channel (871), and a gear (841) and a conical tooth (842) are provided on the power transmission rod (84). One end of the power transmission rod (83) provided with the gear (831) is slidably provided in the sub-power transmission channel (871), and the gear (831) is meshed with the gear (841), and the length of the gear (831) is longer than the length of the gear (841). A mud discharge pipe (86) is provided at the bottom of the mud collecting bucket (5), a valve is provided on the mud discharge pipe (86), a screw (85) is provided in the mud discharge pipe (86), one end of the screw (85) is provided with a second conical tooth (851), the screw (85) is rotatably connected to a clamping seat (87), one end of the screw (85) provided with the second conical tooth (851) is provided in a power transmission channel (871), and the first conical tooth (842) is meshed with the second conical tooth (851); Preferably, the screw (85) is provided with a spiral blade (852).

Images