Sludge dewatering device for sewage treatment

Abstract

The utility model discloses a sludge dewatering device for sewage treatment, which comprises a base, a recovery tank is mounted on one side above the base, a rear cover plate is mounted at one end above the base, a sludge discharge port is formed below the center of the rear cover plate, a sludge inlet pipe is mounted on one side of the center of the rear cover plate, and a sludge outlet is formed in the other side of the center of the rear cover plate. A plunger type sludge filter pressing mechanism is arranged on one side of the upper portion of the base, and a driving mechanism is arranged on the other side of the upper portion of the base. According to the sludge dewatering device disclosed by the utility model, the plunger plate can move at a constant speed along the shape of the circular-ring-shaped filter pressing pipeline by utilizing the slow rotation of the filter pressing cylinder along with the rotating shaft, so that sludge is extruded by utilizing the movement of the plunger plate, the sludge is filtered through the filter pressing cylinder, moisture in the sludge is removed, and the sludge is pushed out of the filter pressing cylinder, so that the dewatering treatment of the sludge is completed; the device is simple in structure, small in size, low in energy consumption and capable of effectively avoiding waste of resources.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment related equipment, in particular to a sludge dewatering device for sewage treatment. Background Technique

[0002] Sewage treatment is a process of purifying the water quality of sewage by comprehensively using physical and chemical treatment methods, so that the sewage can meet the discharge requirements or be reused. During the process of treating the sludge in the sewage, a sludge dewatering device is needed to separate the sewage in the sludge.

[0003] However, when the existing sludge dewatering device dehydrates sludge, a belt filter press is mostly used to dehydrate the sludge. The belt filter press is mostly suitable for working environments with a particularly large amount of sludge. For working environments with a small or not large amount of sludge, due to its structural reasons, the use of the belt filter press will result in a large sludge treatment cost and more energy consumption, causing waste of resources. Content of the Utility Model

[0004] To solve the problems raised in the above background technique. The utility model provides a sludge dewatering device for sewage treatment, which can solve the problems of large sludge treatment cost and more energy consumption caused by the structural raw materials of the belt filter press when the amount of sludge is small or not large in the prior art, resulting in waste of resources.

[0005] To achieve the above object, the technical solution of the utility model is a sludge dewatering device for sewage treatment, including a base, a recovery tank is installed on one side above the base, a rear cover plate is installed at one end above the base, a sludge discharge port is opened below the center of the rear cover plate, a sludge inlet pipe is installed on one side of the center of the rear cover plate, a plunger type sludge filter press mechanism is provided on one side above the base, and a driving mechanism is provided on the other side above the base;

[0006] The plunger type sludge filter press mechanism includes an outer sleeve, a filter press cylinder, a front baffle, a rear baffle, a rotating shaft, a plunger plate, and a filter press column; the outer sleeve is located above one side of the base, the outer sleeve is slidably connected to the base through a support wheel, the outer sleeve is in movable contact with the rear cover plate, the filter press cylinders are uniformly distributed in the outer sleeve, the front baffle and the rear baffle are installed on both sides of the filter press cylinder, the rear baffle is in sliding contact with the outer sleeve, a plurality of support rods are installed at the outer end of the front baffle, a support slider is installed at one end of the support rod, the support slider is in sliding contact with the outer sleeve, a support wheel is provided inside the outer sleeve, the support wheel is in sliding contact with the outer surface of the filter press cylinder, the rotating shaft is installed on the front baffle and the rear baffle, the rotating shaft is connected to the rear cover plate through a bearing, the plunger plate is movably inserted into the filter press cylinder, and the filter press column is installed on the plunger plate.

[0007] Preferably, as a sludge dewatering device for sewage treatment of the present utility model, the filter press cylinder includes an inner cylinder, an outer cylinder, water filtering holes, and filter cloth. The outer cylinder is sleeved on the inner cylinder. The filter cloth is clamped between the outer cylinder and the inner cylinder. The water filtering holes are evenly distributed on the outer cylinder and the inner cylinder. The water filtering holes on the outer cylinder and the inner cylinder are staggered. Both ends of the outer cylinder and the inner cylinder are fixedly connected to a front baffle and a rear baffle respectively.

[0008] Preferably, as a sludge dewatering device for sewage treatment of the present utility model, the driving mechanism includes a driving motor, a speed reducer, a circular filter press pipeline, a support rod, and an adjusting ball. The driving motor and the speed reducer are installed on the other side above the base. The driving motor is connected to the input end of the speed reducer. The output end of the speed reducer is connected to a rotating shaft through a pulley and a belt. The circular filter press pipeline is installed on the other side above the base. The circular filter press pipeline is placed at an inclined angle. An annular filter press column opening is formed on the circular filter press pipeline. The support rods are evenly installed between the circular filter press pipeline and the base. The adjusting ball is slidably installed in the circular filter press pipeline. The filter press column is inserted into the annular filter press column opening and fixedly connected to the adjusting ball.

[0009] Preferably, as a sludge dewatering device for sewage treatment of the present utility model, the circular filter press pipeline and the rotating shaft are connected through a bearing seat and a bearing.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] By using the slow rotation of the filter press cylinder along with the rotating shaft, the plunger plate can move uniformly along the shape of the circular filter press pipeline. Then, the sludge is extruded by the movement of the plunger plate, and the sludge is filtered through the filter press cylinder to remove the water in the sludge, and the sludge is pushed out of the filter press cylinder to complete the dewatering treatment of the sludge. The device has a simple structure, a small volume, and low energy consumption, and can effectively avoid waste of resources. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of a sludge dewatering device for sewage treatment of the present utility model;

[0013] Figure 2 is a schematic diagram of the filter press cylinder of the present utility model;

[0014] Figure 3 is a schematic diagram of the front baffle of the present utility model;

[0015] Figure 4 is a cross-sectional view of the circular filter press pipeline of the present utility model;

[0016] In the figure:

[0017] 1. Base; 11. Recovery tank; 12. Rear cover plate; 13. Sludge discharge port; 14. Sludge inlet pipe.

[0018] 2. Piston-type sludge pressure filtration mechanism; 21. Outer sleeve; 22. Pressure filtration cylinder; 221. Inner cylinder; 222. Outer cylinder; 223. Water filtration holes; 224. Filter cloth; 23. Front baffle; 231. Support rod; 232. Support slider; 24. Rear baffle; 25. Rotating shaft; 26. Piston plate; 27. Pressure filtration column.

[0019] 3. Driving mechanism; 31. Driving motor; 32. Reducer; 33. Annular pressure filtration pipeline; 331. Annular pressure filtration column port; 34. Support rod; 35. Adjusting ball. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0021] As Figure 1 shown;

[0022] A sludge dewatering device for sewage treatment includes a base 1. A recovery tank 11 is installed on one side above the base, a rear cover plate 12 is installed at one end above the base. A sludge discharge port 13 is opened below the center of the rear cover plate, and a sludge inlet pipe 14 is installed on one side of the center of the rear cover plate. A piston-type sludge pressure filtration mechanism 2 is provided on one side above the base, and a driving mechanism 3 is provided on the other side above the base;

[0023] In this implementation scheme, generally, when the existing sludge dewatering device dewaters sludge, a belt filter press is mostly used to dewater the sludge. The belt filter press is mostly suitable for working environments with a particularly large amount of sludge. For working environments with a small or medium amount of sludge, the use of the belt filter press will, due to its structural reasons, result in a large sludge treatment cost and high energy consumption, causing waste of resources. Furthermore, through the piston-type sludge pressure filtration mechanism 3, when the sludge can be quickly and efficiently dewatered, the sludge treatment cost can be reduced, the energy consumption can be reduced, and energy can be saved.

[0024] As Figures 1-4 shown;

[0025] Based on the existing sludge dewatering treatment, through the piston-type sludge pressure filtration mechanism 3, the problems of large sludge treatment cost and high energy consumption caused by waste of resources due to the structural raw materials of the belt filter press when the amount of sludge is small or medium in the existing technology can be solved.

[0026] Furthermore:

[0027] Combined with the above, in order to simplify the device structure, reduce costs, and avoid large energy consumption of the device, a plunger type sludge pressure filtration mechanism 2 is provided on one side above the base. The plunger type sludge pressure filtration mechanism includes an outer sleeve 21, a pressure filtration cylinder 22, a front baffle 23, a rear baffle 24, a rotating shaft 25, a plunger plate 26, and a pressure filtration column 27. The outer sleeve is located above one side of the base. The outer sleeve is slidably connected to the base through a support wheel. The outer sleeve is in movable contact with the rear cover plate. The pressure filtration cylinders are evenly distributed inside the outer sleeve. The front baffle and the rear baffle are installed on both sides of the pressure filtration cylinder. The rear baffle is in sliding contact with the outer sleeve. A number of support rods 231 are installed at the outer end of the front baffle. One end of the support rod is installed with a support slider 232. The support slider is in sliding contact with the outer sleeve. A support wheel is provided inside the outer sleeve. The support wheel is in sliding contact with the outer surface of the pressure filtration cylinder. The rotating shaft is installed on the front baffle and the rear baffle. The rotating shaft is connected to the rear cover plate through a bearing. The plunger plate is movably inserted into the pressure filtration cylinder. The pressure filtration column is installed on the plunger plate.

[0028] In this implementation scheme, in order to ensure that the device can smoothly dehydrate the sludge, by using the cooperation between the pressure filtration cylinder 22 and the plunger plate 26, and through the shielding of the rear cover plate 12, the sludge is squeezed in a relatively closed space, so as to quickly remove the water in the sludge, make the sludge quickly dehydrate, and at the same time, it can also use the push of the plunger plate 26 to quickly discharge the dehydrated sludge, effectively facilitating the operation and control of the staff. And the structure of the device is relatively simple, the cost is low, the operation is relatively convenient, and there are fewer power-consuming components, which can greatly avoid waste of resources. At the same time, by using the front baffle 23 and the rear baffle 24, the sewage separated from the sludge can be effectively collected and discharged, and at the same time, it can also prevent the sludge from leaking into the outer sleeve 21 when being injected. And through the setting of the support rods 231 and the support sliders 232, the sewage collected in the outer sleeve 21 can be smoothly discharged into the recovery tank 11, thus facilitating the collection of the sewage generated by sludge extrusion.

[0029] It should be noted that: The pressure filtration cylinder includes an inner cylinder 221, an outer cylinder 222, water filtration holes 223, and a filter cloth 224. The outer cylinder is sleeved on the inner cylinder. The filter cloth is clamped between the outer cylinder and the inner cylinder. The water filtration holes are evenly distributed on the outer cylinder and the inner cylinder. The water filtration holes on the outer cylinder and the inner cylinder are staggered. The two ends of the outer cylinder and the inner cylinder are respectively fixedly connected to the front baffle and the rear baffle.

[0030] In this implementation, the filter cloth 224 is clamped by the inner cylinder 221 and the outer cylinder 222, which can greatly prevent the filter cloth 224 from being damaged due to excessive force during the extrusion of the sludge. The extrusion force is concentrated on the inner cylinder 221 and the outer cylinder 222, thus ensuring the safety of the filter cloth 224. At the same time, by setting the water filtering holes 223, during the extrusion of the sludge, the problem of excessive force on local points of the filter cloth 224 can be avoided, and the situation of the filter cloth 224 being damaged can be avoided again.

[0031] Furthermore: The driving mechanism includes a driving motor 31, a speed reducer 32, a circular filter pressing pipeline 33, a support rod 34, and an adjusting ball 35. The driving motor and the speed reducer are installed on the other side above the base. The driving motor is connected to the input end of the speed reducer. The output end of the speed reducer is connected to the rotating shaft through a pulley and a belt. The circular filter pressing pipeline is installed on the other side above the base. The circular filter pressing pipeline is placed at an inclined angle. An annular filter pressing column opening 331 is formed on the circular filter pressing pipeline. The support rods are evenly installed between the circular filter pressing pipeline and the base. The adjusting ball is slidably installed in the circular filter pressing pipeline. The filter pressing column is inserted into the annular filter pressing column opening and is fixedly connected to the adjusting ball.

[0032] In this implementation, by setting the circular filter pressing pipeline 33 and the adjusting ball 35, when the driving motor 31 drives the rotating shaft 25 to rotate, the filter pressing cylinder 22 rotates with the rotating shaft 25, and the plunger plate 26 rotates with the filter pressing cylinder 22. The plunger plate 26 can move along the shape of the circular filter pressing pipeline 33 by using the connection between the filter pressing column 27 and the adjusting ball 35, so as to adjust the position of the plunger plate 26, and then complete the work of collecting, extruding, and discharging the sludge, effectively facilitating the operation and use of the staff, and also making the discharge of the dehydrated sludge more convenient.

[0033] It should be understood that: The circular filter pressing pipeline and the rotating shaft are connected through a bearing seat and a bearing.

[0034] In this implementation, by connecting the rotating shaft 25 and the circular filter pressing pipeline 33 through a bearing seat and a bearing, the problem of excessive force on the outer sleeve 21 can be avoided.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0036] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge dewatering device for sewage treatment, comprising a base (1), a recovery tank (11) being installed on one side above the base, characterized in that: A rear cover plate (12) is installed at one end above the base, a sludge discharge port (13) is opened below the center of the rear cover plate, a sludge inlet pipe (14) is installed at one side of the center of the rear cover plate, a plunger-type sludge filter press mechanism (2) is provided on one side above the base, and a driving mechanism (3) is provided on the other side above the base; The plunger type sludge filter press mechanism comprises an outer sleeve (21), a filter cartridge (22), a front baffle (23), a rear baffle (24), a rotating shaft (25), a plunger plate (26), and a filter cartridge (27); the outer sleeve is located above one side of the base, the outer sleeve is slidably connected to the base via a supporting wheel, the outer sleeve is in movable contact with the rear cover plate, the filter cartridge is evenly distributed in the outer sleeve, the front baffle and the rear baffle are mounted on both sides of the filter cartridge, the rear baffle is in sliding contact with the outer sleeve, a plurality of support rods (231) are mounted on the outer end of the front baffle, a supporting slider (232) is mounted on one end of the support rod, the supporting slider is in sliding contact with the outer sleeve, a supporting wheel is provided inside the outer sleeve, the supporting wheel is in sliding contact with the outer surface of the filter cartridge, the rotating shaft is mounted on the front baffle and the rear baffle, the rotating shaft is connected to the rear cover plate via a bearing, the plunger plate is movably inserted in the filter cartridge, and the filter cartridge is mounted on the plunger plate.

2. A sludge dewatering device for sewage treatment according to claim 1, characterized in that: The filter press cylinder comprises an inner cylinder (221), an outer cylinder (222), water filtering holes (223), and a filter cloth (224); the outer cylinder is sleeved on the inner cylinder; the filter cloth is clamped between the outer cylinder and the inner cylinder; the water filtering holes are evenly distributed on the outer cylinder and the inner cylinder; the water filtering holes on the outer cylinder and the inner cylinder are staggered; and the two ends of the outer cylinder and the inner cylinder are fixedly connected to the front baffle and the rear baffle, respectively.

3. A sludge dewatering device for sewage treatment according to claim 1, characterized in that: The driving mechanism comprises a driving motor (31), a reducer (32), an annular filter press pipe (33), a support rod (34), and an adjusting ball (35); the driving motor and the reducer are mounted on the other side above the base; the driving motor is connected to the input end of the reducer; the output end of the reducer is connected to the rotating shaft via a pulley and a belt; the annular filter press pipe is mounted on the other side above the base; the annular filter press pipe is placed at an inclined angle; an annular filter press column opening (331) is formed on the annular filter press pipe; the support rod is evenly mounted between the annular filter press pipe and the base; the adjusting ball is slidably mounted in the annular filter press pipe; the filter press column is inserted into the annular filter press column opening and fixedly connected to the adjusting ball.

4. A sludge dewatering device for sewage treatment according to claim 3, characterized in that: The annular filter press pipeline is connected to the rotating shaft via a bearing seat and a bearing.

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