Z-shaped lamination dehydrator

Abstract

The utility model belongs to the field of dehydrators, and particularly relates to a Z-shaped lamination dehydrator which comprises a machine box, a plurality of disc shafts are arranged in the machine box, a plurality of circular ring gaskets are fixedly connected to a shaft body of each disc shaft, circular ring laminations are fixedly connected to the outer ring walls of the circular ring gaskets, and a water tank is fixedly connected to the bottom of the machine box. According to the utility model, a filtering structure consisting of the upper and lower layers of disc shafts is arranged in the dehydrator, the disc shafts are formed by combining the circular laminations, filtrate is filtered out from the slits between the laminations, and the disc shafts keep rolling to convey sludge entering the dehydrator to the outlet of the sludge pressing plate, so that the sludge flows in the dehydrator in a Z shape, and the sludge in the dehydrator is uniformly filtered out. According to the novel structure, the advancing route of sludge in the case is lengthened, meanwhile, the retention time is prolonged, and meanwhile, the sludge is continuously extruded in the process of reaching the outlet by reducing the size of the filtering seam, so that the filtering effect is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of dehydrator technology, specifically a Z-type stacked dehydrator. Background Technology

[0002] In previous wastewater treatment plants, dewatering machines discharged sludge cake through discharge components. A search revealed a utility model patent with patent authorization announcement number CN203938576U, which discloses a disc-type sludge dewatering machine equipped with a thickening tank. This machine includes a thickening section and a dewatering section. The thickening section is a thickening tank with a disc-type filter element. The dewatering section is a sludge dewatering machine, also employing a disc-type filter. Furthermore, the pitch of the screw propeller in the sludge dewatering machine gradually decreases, and as the screw propeller rotates, the wastewater is gradually squeezed out of the filter.

[0003] However, conventional disc dewatering machines have fixed filter components, resulting in a short sludge travel path and residence time inside the equipment, thus limiting the filtration effect. Utility Model Content

[0004] The purpose of this invention is to provide a Z-type disc dewatering machine, which solves the problems of fixed filter components, short sludge travel path and short residence time, and limited filtration effect of conventional disc dewatering machines.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a Z-type stacked dewatering machine, comprising a casing, wherein multiple disc shafts are arranged inside the casing, and multiple annular washers are fixedly connected to the shaft of each disc shaft. Annular stacked plates are fixedly connected to the outer ring wall of the annular washers. A water tank is fixedly connected to the bottom of the casing, and a filtrate outlet is connected to the left side of the water tank. A feed inlet is connected to the upper right side of the casing, and a sludge outlet is fixedly connected to the upper left side of the casing. A guide plate is fixedly connected to the inner side of the sludge outlet.

[0006] Preferably, a support leg is fixedly connected to the bottom of the chassis, and the position of the support leg corresponds to that of the water tank. The support leg provides overall support.

[0007] Preferably, a pressure plate is hinged to the inner wall of the sludge outlet, the pressure plate abuts against the guide plate, and a spring is fixedly connected between the back of the pressure plate and the inner wall of the sludge outlet. The elastic force of the spring acts on the pressure plate, thereby providing a backflow prevention and sealing effect at the sludge outlet.

[0008] Preferably, a stop bar is fixedly connected to the back of the pressure plate, the stop bar passing through the sludge outlet and slidably connected to the sludge outlet. The stop bar serves to guide the pressure plate.

[0009] Preferably, a mounting plate is fixedly connected to the bottom of the sludge outlet, and a motor is fixedly mounted on the right side of the mounting plate. An eccentric wheel is fixedly connected to the end of the output shaft of the motor, and a striking pin is abutted against the side of the eccentric wheel. The striking pin passes through the sludge outlet and extends to the inner side of the sludge outlet, and the position of the striking pin corresponds to the guide plate. By driving the eccentric wheel to rotate by the motor, the striking pin can be periodically pushed to move and strike the guide plate, thus preventing the sludge discharged from the casing from clogging.

[0010] Preferably, a retaining ring is fixedly connected to the pin body of the striking pin, and a second spring is sleeved on the outer side of the pin body. One end of the second spring is fixedly connected to the retaining ring, and the other end of the second spring is fixedly connected to the inner wall of the sludge outlet. The reaction force of the second spring can act on the striking pin through the retaining ring, thus providing an auxiliary repositioning function.

[0011] Preferably, a guide sleeve is fixedly connected to the bottom of the sludge outlet, and the guide sleeve extends through the sludge outlet. The inner wall of the guide sleeve is provided with ball bearings, which are slidably connected to a striking pin. The striking pin passes through the guide sleeve, and the ball bearings reduce friction during sliding.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model features a filter structure consisting of two layers of disc shafts inside the dewatering machine. The disc shafts are composed of stacked circular plates. The filtrate is filtered out through the narrow gaps between the plates. The disc shafts keep rotating, transporting the sludge entering the dewatering machine to the sludge press outlet. In this way, the sludge flows in a Z-shape inside the dewatering machine. This new structure lengthens the sludge's travel path in the machine and extends the residence time. At the same time, by reducing the size of the filter gaps, the sludge is continuously squeezed as it reaches the outlet, thus enhancing the filtration effect.

[0014] 2. This utility model uses an electric motor to drive an eccentric wheel to periodically push a strike pin to hit the guide plate. Combined with the reset effect of spring two, it effectively prevents sludge from accumulating and clogging at the outlet. At the same time, the cooperation between the pressure plate and spring one realizes automatic backflow prevention and sealing of the sludge outlet, ensuring unidirectional flow of sludge. This design significantly improves the continuous operation stability of the equipment and reduces the frequency of manual cleaning. It is especially suitable for the treatment of high viscosity or easily caking sludge. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Side view of the annular laminate;

[0017] Figure 3 This utility model Figure 1 Enlarged view of the sludge outlet structure;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0019] In the diagram: 1. Chassis; 2. Disc shaft; 3. Circular ring gasket; 4. Circular ring stack; 5. Water tank; 6. Filtrate outlet; 7. Feed inlet; 8. Sludge outlet; 9. Guide plate; 10. Pressure plate; 11. Spring 1; 12. Stop bar; 13. Mounting plate; 14. Motor; 15. Eccentric wheel; 16. Impact pin; 17. Retaining ring; 18. Spring 2; 19. Guide sleeve; 20. Ball bearing; 21. Support leg. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3 A Z-type disc dewatering machine includes a casing 1. Multiple disc shafts 2 are arranged inside the casing 1 in two rows, one above the other. Multiple annular washers 3 are fixedly connected to the shaft of each disc shaft 2. Annular stacked plates 4 are fixedly connected to the outer wall of each annular washer 3. A drive motor is installed on the outer wall of the casing 1 to drive the rotation of the disc shafts 2. Multiple annular stacked plates 4 are arranged sequentially along the axial direction of each disc shaft 2. The annular stacked plates 4 on adjacent disc shafts 2 overlap but do not rub against each other, resulting in no mechanical wear. Sludge flows between the annular stacked plates 4 inside the casing 1 in a Z-shaped path. A water tank 5 is fixedly connected to the bottom of the casing 1. A filtrate outlet 6 is connected to the left side of the water tank 5. A feed inlet 7 is connected to the upper right side of the casing 1. A sludge outlet 8 is fixedly connected to the upper left side of the casing 1. A guide plate 9 is fixedly connected to the inner side of the sludge outlet 8. A support leg 21 is fixedly connected to the bottom of the chassis 1, and the position of the support leg 21 corresponds to that of the water tank 5. The support leg 21 provides support for the entire structure.

[0022] Please see Figure 1 , Figure 3A pressure plate 10 is hinged to the inner wall of the sludge outlet 8. The pressure plate 10 abuts against the guide plate 9. A spring 11 is fixedly connected between the back of the pressure plate 10 and the inner wall of the sludge outlet 8. The elastic force of the spring 11 acts on the pressure plate 10, thus providing a backflow prevention and sealing function at the sludge outlet 8. A stop rod 12 is fixedly connected to the back of the pressure plate 10. The stop rod 12 passes through the sludge outlet 8 and is slidably connected to it. The stop rod 12 provides a guiding function for the pressure plate 10.

[0023] Please see Figures 3-4 A mounting plate 13 is fixedly connected to the bottom of the sludge outlet 8. A motor 14 is fixedly installed on the right side of the mounting plate 13. An eccentric wheel 15 is fixedly connected to the end of the output shaft of the motor 14. A striking pin 16 abuts against the side of the eccentric wheel 15. The striking pin 16 passes through the sludge outlet 8 and extends to the inner side of the sludge outlet 8. The position of the striking pin 16 corresponds to the guide plate 9. By driving the eccentric wheel 15 to rotate through the motor 14, the striking pin 16 can be periodically pushed to move and strike the guide plate 9, thus preventing the sludge discharged from the casing 1 from clogging. A retaining ring 17 is fixedly connected to the pin body of the striking pin 16. A second spring 18 is sleeved on the outside of the pin body of the striking pin 16. One end of the second spring 18 is fixedly connected to the retaining ring 17, and the other end of the second spring 18 is fixedly connected to the inner wall of the sludge outlet 8. The reaction force of the second spring 18 can act on the striking pin 16 through the retaining ring 17, which has an auxiliary resetting function. A guide sleeve 19 is fixedly connected to the bottom of the sludge outlet 8, and the guide sleeve 19 extends through the sludge outlet 8. A ball bearing 20 is provided on the inner wall of the guide sleeve 19, and the ball bearing 20 is slidably connected to a striking pin 16. The striking pin 16 passes through the guide sleeve 19, and the ball bearing 20 reduces friction during sliding.

[0024] The specific implementation process of this utility model is as follows: In use, the sludge concentrated by gravity in the sludge thickening tank of the sewage treatment plant is pumped into the feed inlet 7 of the casing 1. The filtrate in the sludge is filtered out through the narrow gaps between the circular discs 4. At the same time, the disc shaft 2 keeps rolling to transport the sludge entering the dewatering machine to the sludge outlet 8. Moreover, during the rotation of the disc shaft 2, the circular discs 4 overlap but do not rub against each other and there is no mechanical wear. Compared with the single-layer sludge structure, this new structure lengthens the water flow path of the sludge in the filter container, prolongs the residence time, and at the same time, by reducing the size of the filter gap, the sludge is continuously squeezed during the process of reaching the sludge outlet 8, which enhances the filtration effect and makes it stable and reliable for long-term operation. Subsequently, the sludge pushes open the pressure plate 10 and is discharged under the guidance of the guide plate 9. In addition, the motor 14 drives the eccentric wheel 15 to periodically push the impact pin 16 to strike the guide plate 9. At the same time, combined with the reset action of the spring 18, the sludge can be effectively prevented from accumulating and clogging at the sludge outlet 8.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A Z-type stacked dewatering machine, comprising a casing (1), characterized in that: The machine housing (1) is equipped with multiple disc shafts (2). Each disc shaft (2) is fixedly connected to multiple annular gaskets (3). Annular stacked pieces (4) are fixedly connected to the outer ring wall of the annular gaskets (3). A water tank (5) is fixedly connected to the bottom of the machine housing (1). A filtrate outlet (6) is connected to the left side of the water tank (5). A feed inlet (7) is connected to the upper right side of the machine housing (1). A sludge outlet (8) is fixedly connected to the upper left side of the machine housing (1). A guide plate (9) is fixedly connected to the inner side of the sludge outlet (8).

2. The Z-type stacked dewatering machine according to claim 1, characterized in that: The bottom of the chassis (1) is fixedly connected to a support leg (21), and the position of the support leg (21) corresponds to that of the water tank (5).

3. The Z-type stacked dewatering machine according to claim 1, characterized in that: A pressure plate (10) is hinged to the inner wall of the sludge outlet (8). The pressure plate (10) abuts against the guide plate (9). A spring (11) is fixedly connected between the back of the pressure plate (10) and the inner wall of the sludge outlet (8).

4. A Z-type stacked dewatering machine according to claim 3, characterized in that: A baffle (12) is fixedly connected to the back of the pressure plate (10), and the baffle (12) passes through the sludge outlet (8) and is slidably connected to the sludge outlet (8).

5. A Z-type stacked dewatering machine according to claim 1, characterized in that: A mounting plate (13) is fixedly connected to the bottom of the sludge outlet (8). A motor (14) is fixedly installed on the right side of the mounting plate (13). An eccentric wheel (15) is fixedly connected to the end of the output shaft of the motor (14). A striking pin (16) abuts against the side of the eccentric wheel (15). The striking pin (16) penetrates the sludge outlet (8) and extends to the inside of the sludge outlet (8). The position of the striking pin (16) corresponds to the guide plate (9).

6. A Z-type stacked dewatering machine according to claim 5, characterized in that: A retaining ring (17) is fixedly connected to the pin body of the impact pin (16). A second spring (18) is sleeved on the outside of the pin body of the impact pin (16). One end of the second spring (18) is fixedly connected to the retaining ring (17), and the other end of the second spring (18) is fixedly connected to the inner wall of the sludge outlet (8).

7. A Z-type stacked dewatering machine according to claim 5, characterized in that: The bottom of the sludge outlet (8) is fixedly connected to a guide sleeve (19), and the guide sleeve (19) is set through the sludge outlet (8). The inner ring wall of the guide sleeve (19) is provided with a ball (20), and the ball (20) is slidably connected to the impact pin (16).

Images