Novel sludge conditioning and deep dewatering device

Abstract

The utility model discloses a novel sludge conditioning and deep dewatering device, which relates to the technical field of sludge conditioning and comprises a conditioning tank and a plate-and-frame filter press, a plurality of support legs are fixedly arranged at the bottom of the conditioning tank and are symmetrically arranged in a surrounding manner, a discharge pipe is communicated with the bottom of the conditioning tank, a feed pipe is arranged in the plate-and-frame filter press, and the feed pipe is communicated with the discharge pipe. A supporting frame is fixedly arranged at the upper end of the back side of the conditioning tank, a vertical rod is rotationally arranged at the upper end of the interior of the supporting frame in a penetrating mode, the lower end of the vertical rod extends into the conditioning tank and is fixedly provided with a transverse plate, connecting plates are arranged at the two ends of the top of the transverse plate in a contact mode, and feeding boxes are fixedly arranged on the sides, away from each other, of the two connecting plates; and the charging box is filled with a flocculating agent. According to the plate-and-frame filter press, the sludge can be flocculated and conditioned after being concentrated, so that the dewatering performance of the sludge can be effectively improved before the sludge enters the plate-and-frame filter press, the sludge can be effectively dewatered in the plate-and-frame filter press subsequently, and the sludge conditioning and dewatering effects are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge conditioning, in particular to a novel sludge conditioning and deep dehydration device. Background Art

[0002] During the sludge treatment process, the sludge needs to be conditioned. The conditioning method can change the flocculation characteristics of the sludge, significantly increase the separation rate of water and solids in the sludge, thereby improving the dewatering performance of the sludge. At the same time, the sludge weight can be reduced after dewatering, thereby reducing the cost required for subsequent transportation of the sludge.

[0003] After searching, the patent document with announcement number CN217972950U discloses a sludge deep conditioning and dewatering system. This dewatering system cooperates with the plate and frame dewatering machine by setting up dosing parts, mud discharge parts and cleaning parts to achieve efficient and stable dewatering. It not only has high work efficiency, but also low overall cost, and is more efficient and practical.

[0004] However, the above device only dewaters the sludge and does not effectively condition the sludge before dewatering, resulting in poor dewatering effect when the sludge subsequently enters the plate and frame filter press. Utility Model Content

[0005] In view of the problems existing in the above-mentioned existing novel sludge conditioning and deep dehydration devices, the present utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a new type of sludge conditioning and deep dehydration device, which solves the problem that the existing technology only dehydrates the sludge but does not effectively condition the sludge before dehydration, resulting in poor dehydration effect when the sludge subsequently enters the plate and frame filter press.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A novel sludge conditioning and deep dehydration device comprises a conditioning tank and a plate-and-frame filter press. The bottom of the conditioning tank is fixedly provided with a plurality of support legs arranged symmetrically around the bottom. A discharge pipe is connected to the bottom of the conditioning tank. A feed pipe is provided inside the plate-and-frame filter press. The discharge pipe is connected to the feed pipe.

[0009] A support frame is fixed on the upper end of the back side of the conditioning tank, a vertical rod is rotatably passed through the upper end of the inner part of the support frame, the lower end of the vertical rod extends into the conditioning tank and is fixed with a horizontal plate, the top ends of the horizontal plates are both in contact with connecting plates, and a feeding box is fixed on the side away from the two connecting plates, and the feeding box is filled with flocculant;

[0010] Both ends of the interior of the transverse plate are rotatably provided with stirring rods, and a stirring and conditioning mechanism for driving the stirring rods to rotate is provided between the two stirring rods and the conditioning tank.

[0011] Preferably, the stirring and conditioning mechanism includes two symmetrically arranged circular gears, the two circular gears are respectively fixedly sleeved on the outer upper ends of the two stirring rods, and two symmetrically arranged mounting rods are fixedly provided on the top of the conditioning tank, and an inner gear ring is fixedly provided through the mounting rods, and the two circular gears are engaged with the inner part of the inner gear ring;

[0012] The lower ends of the rod walls of the two stirring rods are fixed with a plurality of auxiliary stirring shafts which are arranged in a symmetrical manner around them.

[0013] Preferably, a large-range feeding mechanism for driving the feeding box to move horizontally is provided between the connecting plate and the transverse plate;

[0014] The large-range feeding mechanism includes a first reciprocating screw, a mounting plate is fixedly provided on the top of the horizontal plate, the first reciprocating screw is rotatably passed through the mounting plate, the connecting plate is threadedly sleeved on the outside of the first reciprocating screw and is fixedly connected to the feeding box, and a transmission mechanism for synchronous transmission is provided near one end of the first reciprocating screw and the stirring rod.

[0015] Preferably, the transmission mechanism includes two meshing bevel gears, and the two bevel gears are fixedly connected to the stirring rod and the first reciprocating screw near one end respectively.

[0016] Furthermore, a driving motor is fixedly provided on the upper end of the back side of the support frame, and a second reciprocating screw is fixedly provided on the output shaft of the driving motor. A driving rack is threadedly sleeved on the rod wall of the second reciprocating screw, and a driving gear is matched with the driving rack, and the driving gear is fixedly sleeved on the vertical rod.

[0017] Preferably, a feeding pipe is provided at the bottom of the feeding box, a fixed sleeve on the wall of the feeding pipe is provided with an electromagnetic control valve, and a fixed sleeve on the wall of the discharge pipe is provided with a feed pump.

[0018] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0019] 1. The utility model is equipped with a conditioning tank, a plate and frame filter press, a discharge pipe, a feed pipe, a support frame, a vertical rod, a horizontal plate, a stirring rod and a feeding box, which can flocculate and condition the sludge after the sludge is concentrated, so that the dewatering performance of the sludge can be effectively improved before the sludge enters the plate and frame filter press, so that the sludge can be effectively dehydrated in the plate and frame filter press later, thereby improving the sludge conditioning and dewatering effect.

[0020] 2. The utility model, through the supporting frame, vertical rods, horizontal plates, connecting plates, feeding boxes, stirring rods, stirring and conditioning mechanisms, large-scale feeding mechanisms and transmission mechanisms, can fully and comprehensively add flocculants into the conditioning tank, while ensuring that the flocculants can fully cooperate with the sludge, effectively improving the dewatering effect of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the conditioning pool of the utility model;

[0024] Figure 3 This is a schematic diagram of a half-section structure of a conditioning tank of the present invention;

[0025] Figure 4 It is a three-dimensional structural diagram of the support frame, vertical rods, horizontal plates, transmission mechanism and large-scale adjustment mechanism of the utility model.

[0026] Description of reference numerals:

[0027] 1. Conditioning tank; 2. Plate and frame filter press; 3. Support legs; 4. Discharge pipe; 5. Feed pipe; 6. Support frame; 7. Vertical rod; 8. Horizontal plate; 9. Connecting plate; 10. Feeding box; 11. Stirring rod; 12. Circular gear; 13. Mounting rod; 14. Internal gear ring; 15. Auxiliary stirring shaft; 16. First reciprocating screw; 17. Mounting plate; 18. Bevel gear; 19. Drive motor; 20. Second reciprocating screw; 21. Drive rack; 22. Drive gear; 23. Feeding pipe; 24. Solenoid control valve; 25. Feed pump. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] The embodiment of the utility model discloses a novel device for sludge conditioning and deep dehydration.

[0030] The utility model provides Figure 1-4The novel sludge conditioning and deep dehydration device shown includes a conditioning tank 1 and a plate-and-frame filter press 2. A plurality of support legs 3 are fixedly provided at the bottom of the conditioning tank 1 and arranged symmetrically around the bottom. A discharge pipe 4 is connected to the bottom of the conditioning tank 1. A feed pipe 5 is provided inside the plate-and-frame filter press 2. The discharge pipe 4 is connected to the feed pipe 5. A feed pump 25 is fixedly provided on the wall of the discharge pipe 4.

[0031] A support frame 6 is fixed to the upper end of the back side of the conditioning tank 1. A vertical rod 7 is rotatably passed through the upper end of the inner part of the support frame 6. The lower end of the vertical rod 7 extends into the conditioning tank 1 and is fixed with a horizontal plate 8. Both ends of the top of the horizontal plate 8 are in contact with connecting plates 9. A feeding box 10 is fixed on the side away from the two connecting plates 9. The feeding box 10 is filled with flocculant. The bottom of the feeding box 10 is connected to a feeding pipe 23. The pipe wall of the feeding pipe 23 is fixed with an electromagnetic control valve 24.

[0032] Stirring rods 11 are rotatably provided at both ends of the interior of the transverse plate 8 , and a plurality of auxiliary stirring shafts 15 symmetrically arranged around the lower ends of the rod walls of the two stirring rods 11 are fixedly provided.

[0033] Before conditioning and dewatering the sludge, the sludge is placed in a thickening tank in advance for thickening, and the concentrated sludge is poured into the conditioning tank 1. Before this, flocculants are added to the two feeding boxes 10. After the sludge has fully entered the conditioning tank 1, the vertical rod 7 and the horizontal plate 8 are rotatably connected, and the multiple stirring rods 11 are rotated in the conditioning tank 1. Then, the multiple stirring rods 11 are driven to rotate, so that the stirring rods 11 drive the auxiliary stirring shaft 15 to rotate rapidly, and the electromagnetic control valve 24 is opened, so that the flocculant enters the sludge through the feeding pipe 23. Under the stirring action of the stirring rod 11, the flocculant and the sludge are fully mixed, effectively improving the dewatering performance of the sludge.

[0034] After the sludge and flocculant are effectively mixed, the feed pump 25 is turned on to allow the sludge to enter the plate and frame filter press 2 through the discharge pipe 4 and the feed pipe 5. The sludge enters the filter chamber of the plate and frame filter press 2 under the action of pressure. As the feeding progresses, the sludge in the filter chamber gradually increases and the pressure gradually increases. When the filter chamber is full of sludge, the pressure is continued to be increased so that the moisture in the sludge is squeezed out through the filter cloth to form a filter cake. After reaching a certain pressure, it is maintained for a period of time to further dehydrate the filter cake and improve the dehydration rate. After the pressure maintenance is completed, the pressure is reduced, the unloading device of the plate and frame filter press 2 is opened, the dehydrated filter cake is unloaded from the filter plate, and loaded into a sludge transfer vehicle for external transportation and disposal, thereby completing the conditioning and dehydration of the sludge.

[0035] In order to enable the stirring rod 11 to rotate stably and quickly mix the sludge and flocculant, Figure 1-2 and Figure 4As shown, a stirring and conditioning mechanism for driving the stirring rods 11 to rotate is provided between the two stirring rods 11 and the conditioning tank 1. The stirring and conditioning mechanism includes two symmetrically arranged circular gears 12. The two circular gears 12 are fixedly sleeved on the outer upper ends of the two stirring rods 11 respectively. Two symmetrically arranged mounting rods 13 are fixed on the top of the conditioning tank 1, and an inner gear ring 14 is fixed through the mounting rods 13. The two circular gears 12 are engaged with the inner part of the inner gear ring 14.

[0036] When the vertical rod 7 drives the horizontal plate 8 to rotate, since the position of the inner ring gear 14 is fixed, when the horizontal plate 8 drives the stirring rod 11 to revolve, the circular gear 12 engages with the inner ring gear 14 and drives the stirring rod 11 to rotate rapidly, so that the stirring rod 11 drives the auxiliary stirring shaft 15 to rotate stably and perform a surrounding and sufficient stirring of the sludge inside the conditioning tank 1.

[0037] In order to enable the flocculant to be added to various places on the surface of the sludge in the conditioning tank 1, Figure 3-4 As shown, a large-scale feeding mechanism for driving the feeding box 10 to move laterally is provided between the connecting plate 9 and the transverse plate 8;

[0038] The large-scale feeding mechanism includes a first reciprocating screw 16. A mounting plate 17 is fixed to the top of the horizontal plate 8. The first reciprocating screw 16 is rotatably inserted into the mounting plate 17. The connecting plate 9 is threadedly sleeved on the outside of the first reciprocating screw 16 and is fixedly connected to the feeding box 10. A transmission mechanism for synchronous transmission is provided near one end of the first reciprocating screw 16 and the stirring rod 11.

[0039] The transmission mechanism includes two meshing bevel gears 18 , and the two bevel gears 18 are fixedly connected to the stirring rod 11 and the first reciprocating screw 16 near one end respectively.

[0040] When the circular gear 12 is driven to rotate, the stirring rod 11 rotates accordingly. At this time, through the engagement of the two bevel gears 18, the second reciprocating screw 16 rotates, so that the first reciprocating screw 16 drives the connecting plate 9 to slide effectively along the surface of the transverse plate 8. At this time, the two feeding boxes 10 can move back and forth according to the rotation of the transverse plate 8, so that the flocculant inside the feeding box 10 can be fully and widely added to various parts of the sludge surface, so that the sludge and flocculant are fully and effectively mixed.

[0041] In order to make the vertical rod 7 rotate stably and the stirring and conditioning mechanism and the large-scale feeding mechanism operate stably, as shown in FIG. Figure 4 As shown, a driving motor 19 is fixedly provided on the upper end of the back side of the support frame 6, and a second reciprocating screw 20 is fixedly provided on the output shaft of the driving motor 19. A driving rack 21 is threadedly sleeved on the rod wall of the second reciprocating screw 20, and the driving rack 21 is matched with a driving gear 22, and the driving gear 22 is fixedly sleeved on the vertical rod 7.

[0042] Before the conditioning work begins, the drive motor 19 is started so that the drive motor 19 drives the second reciprocating screw 20 to rotate. At this time, the drive rack 21 slides back and forth laterally under the contact limit with the top of the support frame 6, so that the drive gear 22 rotates stably under the engagement of the drive rack 21, thereby driving the vertical rod 7 to rotate stably, so that the stirring conditioning mechanism and the large-scale feeding mechanism can operate stably.

[0043] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel sludge conditioning and deep dehydration device, comprising a conditioning tank (1) and a plate and frame filter press (2), characterized in that: A plurality of supporting legs (3) are fixedly provided at the bottom of the conditioning tank (1) and are arranged symmetrically around the bottom of the conditioning tank (1); a discharge pipe (4) is provided at the bottom of the conditioning tank (1); a feed pipe (5) is provided inside the plate-and-frame filter press (2); and the discharge pipe (4) is connected to the feed pipe (5); A support frame (6) is fixedly provided at the upper end of the back side of the conditioning tank (1), a vertical rod (7) is rotatably passed through the inner upper end of the support frame (6), the lower end of the vertical rod (7) extends into the conditioning tank (1) and is fixedly provided with a horizontal plate (8), both ends of the top of the horizontal plate (8) are in contact with connecting plates (9), and a feeding box (10) is fixedly provided on the side away from the two connecting plates (9), and the feeding box (10) is filled with flocculant; Stirring rods (11) are rotatably provided at both ends of the interior of the transverse plate (8), and a stirring and conditioning mechanism for driving the stirring rods (11) to rotate is provided between the two stirring rods (11) and the conditioning tank (1).

2. The novel sludge conditioning and deep dehydration device according to claim 1 is characterized in that: The stirring and conditioning mechanism comprises two symmetrically arranged circular gears (12), the two circular gears (12) being fixedly sleeved on the outer upper ends of the two stirring rods (11), the top of the conditioning tank (1) being fixedly provided with two symmetrically arranged mounting rods (13), and an inner gear ring (14) being fixedly provided via the mounting rods (13), the two circular gears (12) being in meshing cooperation with the inner gear ring (14); A plurality of auxiliary stirring shafts (15) arranged in a symmetrical manner around the lower ends of the rod walls of the two stirring rods (11) are fixedly provided.

3. The novel sludge conditioning and deep dehydration device according to claim 1 is characterized in that: A large-range feeding mechanism for driving the feeding box (10) to move laterally is provided between the connecting plate (9) and the transverse plate (8); The large-scale feeding mechanism includes a first reciprocating screw (16), a mounting plate (17) is fixedly provided on the top of the transverse plate (8), the first reciprocating screw (16) is rotatably inserted into the mounting plate (17), the connecting plate (9) is threadedly sleeved on the outside of the first reciprocating screw (16), and is fixedly connected to the feeding box (10), and a transmission mechanism for synchronous transmission is provided near one end of the first reciprocating screw (16) and the stirring rod (11).

4. The novel sludge conditioning and deep dehydration device according to claim 3 is characterized in that: The transmission mechanism comprises two meshing bevel gears (18), and the two bevel gears (18) are fixedly connected to the stirring rod (11) and the first reciprocating screw (16) near one end respectively.

5. The novel sludge conditioning and deep dehydration device according to claim 1 is characterized in that: A driving motor (19) is fixedly provided at the upper end of the back side of the support frame (6); a second reciprocating screw (20) is fixedly provided on the output shaft of the driving motor (19); a driving rack (21) is threadedly sleeved on the rod wall of the second reciprocating screw (20); the driving rack (21) is matched with a driving gear (22); and the driving gear (22) is fixedly sleeved on the vertical rod (7).

6. The novel sludge conditioning and deep dehydration device according to claim 1 is characterized in that: The bottom of the feeding box (10) is connected to a feeding pipe (23), a tube wall fixed sleeve of the feeding pipe (23) is provided with an electromagnetic control valve (24), and a tube wall fixed sleeve of the discharge pipe (4) is provided with a feed pump (25).

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