CN216711864U - Sludge treatment circulation washing unit - Google Patents

Abstract

The utility model discloses a sludge treatment circulating flushing device.A spiral diversion trench which spirals downwards is arranged on the inner wall of a sewage treatment tower and is arranged along the tangential direction of the sewage treatment tower; a sludge outlet valve is arranged at the bottom of the sewage treatment tower, a central suction pipe vertically extends downwards from the center of the upper part of the sewage treatment tower, and an outlet at the outer end of the central suction pipe is communicated with the flushing structure through a pump; the flushing structure comprises a flushing pipe body, the flushing pipe body is provided with a water inlet communicated with a water outlet of the pump, the lower part of the flushing pipe body is provided with a plurality of parallel water knife openings along the length direction, and the flushing pipe body is provided with a trash discharge opening; the washing pipe is internally provided with a rotary shaft along the length direction, the rotary shaft is provided with a brush, sewage filtered by the filter belt can be treated without power, and a treated water source is used for washing the filter belt, so that the cost for laying a clean water drainage pipe is greatly reduced, the water source is protected, and the sewage production and sewage treatment investment are reduced.

Description

Sludge treatment circulation washing unit

Technical Field

The utility model belongs to the technical field of sludge treatment, and particularly relates to a sludge treatment circulating flushing device.

Background

In the sludge filter-pressing process, a washing structure is required to continuously wash a place which is easy to block, and for example, a basic structure of a belt filter press mainly comprises a driving device, a squeezing roller, an upper filter belt, a lower filter belt, a filter belt tensioning device, a filter belt cleaning device and the like; after the sludge is subjected to filter pressing by the existing upper filter belt and the lower filter belt, the sludge is often required to be cleaned so as to ensure that filter holes in the filter belts are smooth and ensure that water can efficiently permeate the filter belts in the filter pressing process; continuous cleaning is also needed in the using process of the screw stacking machine; the filtration needs a large amount of clear water, but there are a large amount of impurity in the filterable water source of filter belt, can't directly be used for the filter belt to wash, consequently, current washing unit need wash with new clean water source when wasing, not only in sludge treatment process, need lay extra pipeline and water source, the fund input is big, can produce new sewage simultaneously in carrying out the cleaning process, and filter belt cleaning device needs long-time operation, the produced sewage volume is huge, consequently, it is necessary to study a sludge treatment circulation washing unit.

Disclosure of Invention

Aiming at the defects and problems of the existing equipment, the utility model provides a belt filter press, which effectively solves the problems that a new clean water source is needed for a flushing structure in the existing sludge equipment, a large amount of extra clean water is consumed, and the cost is high.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a sludge treatment circulating flushing device comprises a water collecting tank for collecting sewage, a sewage treatment tower and a flushing structure; the water collecting tank is connected with a cylindrical sewage treatment tower through a pipeline, a spiral diversion groove which spirals downwards is arranged on the inner wall of the sewage treatment tower, the diversion groove is arranged along the tangential direction of the sewage treatment tower, and the upper end inlet of the diversion groove is communicated with a sewage inlet on the side surface of the sewage treatment tower; a sludge outlet valve is arranged at the bottom of the sewage treatment tower, a central suction pipe vertically extends downwards from the center of the upper part of the sewage treatment tower, and an outlet at the outer end of the central suction pipe is communicated with the flushing structure through a pump; the flushing structure comprises a flushing pipe body, the flushing pipe body is provided with a water inlet communicated with a water outlet of the pump, a plurality of parallel flushing ports are formed in the lower portion of the flushing pipe body along the length direction, impurity discharging ports are formed in the flushing pipe body, a rotating shaft capable of rotating is arranged in the flushing pipe body along the length direction, and a brush for cleaning the inner wall of the flushing pipe body is arranged on the rotating shaft.

Furthermore, the impurity discharging port is arranged at the opposite end of the water inlet of the flushing pipe body.

Furthermore, the driving end of the rotating shaft is connected with a driving motor or a driving hand wheel.

Furthermore, the central suction pipe is fixed on the inner wall of the sewage treatment tower through a bracket, and a bucket-shaped filter cover is arranged at the bottom of the central suction pipe.

Further, the bottom of sewage treatment tower is provided with changeover portion and precipitation section, and the changeover portion is the toper structure, is provided with the toper cover in the precipitation section, and there is the clearance in the lateral wall of toper cover and precipitation section.

The utility model has the beneficial effects that: the utility model aims at the problems that a cleaning device in the prior structure needs an additional clean water source and generates a large amount of sewage in the continuous cleaning process, and based on the problem, the utility model focuses on the sewage generated by filter pressing of a filter belt, firstly collects the sewage and then injects the sewage into a sewage treatment tower, in order to realize continuous and unpowered sewage treatment, a spiral diversion trench is arranged in the sewage treatment tower, and is fixed on the inner wall of the sewage treatment tower, so that the sewage can be driven to stir in the sewage treatment tower by utilizing the power generated when the sewage is injected into the sewage treatment tower, and the heavier impurities are positioned at the outer side and move downwards under the action of gravity by utilizing the centrifugal force generated by stirring, thereby generating a clean water source at the center of the upper layer of the sewage treatment tower, and extracting the water source by utilizing a central suction pipe, so that the sewage can be rapidly treated without power and can be continuously operated, for washing the body and continuously providing clean water source, the water that gets into and wash the body is discharged from washing the mouth, is provided with the pivot in the washing body, sets up in the pivot that the brush can wash the impurity that washes mouthful department to regularly discharge the impurity of accumulation from arranging miscellaneous mouthful department.

In order to further improve sewage treatment efficiency, set up the toper cover in the precipitation section of sewage treatment tower bottom, the toper cover can let mud pass through to the stationary flow deposits, reduces the influence of water disturbance to mud, makes the mud after the sediment can not get into the upper water body once more, has improved the precipitation efficiency of mud.

Therefore, the utility model can filter sewage without power for treatment, uses the treated water source for flushing, does not need to add extra water source in the cleaning process, and simultaneously, the sewage treatment tower is close to the filter belt, thereby greatly reducing the cost of laying clean water drainage tubes, protecting the water source, reducing the sewage production and sewage treatment investment, saving energy and protecting the environment and having great economic and environmental benefits.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic diagram of the process of using the present invention.

FIG. 3 is another sludge collection configuration of the present invention.

The reference numbers in the figures are: 1 is an upper filter pressing belt, 2 is a lower filter pressing belt, 3 is a water collecting tank, 4 is a sewage treatment tower, 41 is a transition section, 42 is a settling section, 5 is a guide groove, 6 is a central suction pipe, 7 is a pump, 8 is a washing pipe body, 9 is a washing port, 10 is a trash discharging port, 11 is a rotating shaft, 12 is a brush, 13 is a driving motor, and 14 is a mud discharging valve.

Detailed Description

The utility model is further illustrated with reference to the following figures and examples.

Example 1: the embodiment aims to provide a sludge treatment circulating flushing device, which is suitable for the field of sludge treatment and is mainly used for sludge filter pressing processes, such as a belt filter press, a cleaning screw stacking machine and the like, sewage is generated in the treatment process, a new clean water source needs to be introduced again, and parts which are easy to block in equipment are flushed; the cost that drops into is huge in the continuous cleaning process produces a large amount of sewage, especially to the place that water intaking is inconvenient in the water source place, and on this basis, this embodiment provides one kind and can utilize the sewage that the filter belt filter-pressing produced, is used for the washing of filter belt after handling sewage, need not new water source input, rationally allocates the sewage volume according to washing water demand volume to handle this sewage, produce the clean water that is used for wasing the filter belt in the internal demand.

As shown in fig. 1-2, a sludge treatment circulating flushing device comprises a water collecting tank for collecting sewage, a sewage treatment tower and a flushing structure, wherein a belt filter press is taken as an example in the embodiment, wherein each of an upper filter press belt 1 and a lower filter press belt 2 comprises a press roller, a press belt and a driving wheel, a horizontal filter press area is arranged between the press belt and the driving wheel, the press belt is sleeved on the driving wheel, the press roller is arranged on the side surface of the press belt, a water collecting tank 3 is arranged at the lower part of the lower filter press belt 2, the water collecting tank 3 is used for collecting sewage generated by filter press filtration of the filter belts, and in the specific implementation, the structure of the water collecting tank 3 can be an inclined structure, specifically, two sides can be inclined towards the middle part or inclined towards one side, so as to rapidly collect the sewage.

In the embodiment, the water collecting tank 3 is connected with a cylindrical sewage treatment tower 4 through a pipeline, the inner wall of the sewage treatment tower 4 is provided with a spiral diversion trench 5 which spirals downwards, the diversion trench 5 is arranged along the tangential direction of the sewage treatment tower, and the upper inlet of the diversion trench is communicated with a sewage inlet on the side surface of the sewage treatment tower, so that a diversion channel which can stir the water body to rotate without power is formed in the sewage treatment tower; the diversion channel can conduct diversion on the powered inlet water, apply tangential power to the water body to drive the water body to rotate in the sewage treatment tower 4, and the sewage water body is under the action of centrifugal force, the heavier impurity particles are centrifuged to the outside and move downwards under the action of gravity, thereby generating a clean water source at the center of the upper layer of the sewage treatment tower 4, and the central suction pipe 6 is used for pumping the water source at the position, thereby being capable of unpowered rapidly treating the sewage, can continuously operate to continuously provide clean water source for the flushing device, the central suction pipe 6 is fixed on the inner wall of the sewage treatment tower 4 through a bracket, the bottom of the central suction pipe 6 can be provided with a bucket-shaped filter cover as required to prevent light impurities from entering the central suction pipe, the bottom of the sewage treatment tower 4 is provided with a sludge outlet valve 14, and the sludge outlet valve 14 is opened periodically to discharge accumulated sludge.

A central suction pipe 6 extends downwards along the vertical direction in the center of the upper part of the sewage treatment tower 4, an outlet at the outer end of the central suction pipe 6 is connected with a flushing pipeline through a pump 7, and the flushing pipeline is communicated with a flushing structure; the washing structure sets up respectively and presses the area top at last filter-pressing area 1 and filter-pressing area 2 down to wash, in this embodiment the washing structure is including washing body 8, washes body 8 and is provided with the water inlet with pump outlet intercommunication, washes the lower part of body 8 and is provided with many parallel washing mouths 9 along length direction, is provided with row's miscellaneous mouthful 10 on washing the body, wash body 8 interior edge length direction be provided with can pivoted pivot 11, be provided with on the pivot 11 to washing the brush 12 of body inner wall clearance, the drive end of pivot is connected with driving motor 13 or drive hand wheel, pours into the washing body 8 with clean water into under the effect of pump 7, under hydraulic effect, the water jets from washing mouth 9 and forms the washing water sword, and the water sword that sets up side by side can wash the filter-pressing area many times, ensures the cleaning performance.

During specific implementation, the flushing device is arranged at the position shown in fig. 1, the flushing pipe body is arranged along the horizontal direction, the flushing pipe body is arranged on the right sides of the upper filter pressing belt 1 and the lower filter pressing belt 2, the right side is a sludge inlet end, and the left side is a sludge outlet end, so that sewage generated by cleaning is prevented from entering a filter pressing position.

When the device is used specifically, the sewage treatment tower is arranged at a position close to a filter belt, sewage collected by the water collecting tank is pumped into the sewage treatment tower 4 by using the pump, additional initial power is provided for the sewage, the sewage enters the sewage treatment tower 4 and then enters the cylindrical sewage treatment tower 4 along a tangent line due to the limiting effect of the spiral diversion trench, so that the continuously injected sewage can drive a water body to rotate in the sewage treatment tower, impurities are separated from the sewage under the action of centrifugal force and a center, purified water is formed in the middle of the upper layer and is pumped out by using the central suction pipe and serves as a water source of a flushing structure, the sewage filtered by the filter belt can be treated without power, the treated water source is used for flushing the filter belt, no additional water source is required to be added in the cleaning process of the filter belt, meanwhile, the sewage treatment tower is close to the filter belt, and the cost for laying a dry drainage pipe is greatly reduced, protects water sources, reduces sewage production and sewage treatment investment, saves energy, protects environment, and has great economic and environmental benefits.

Example 3: this example is substantially the same as example 1, except that; this example provides a sludge collecting structure of another structure.

The bottom of the sewage treatment tower is communicated with the sedimentation section 42 at the bottom through the tapered transition section 41, the upper part of the sedimentation section is provided with the tapered cover, the tapered cover and the side wall of the sedimentation section 42 have a gap, sludge can pass through the gap by utilizing the gap, the steady flow sedimentation is carried out, the influence of water disturbance on the sludge is reduced, the sludge after sedimentation can not be subjected to the upper water body again, and the sedimentation efficiency of the sludge is improved.

Claims (5)

1. The utility model provides a sludge treatment circulation washing unit which characterized in that: comprises a water collecting tank for collecting sewage, a sewage treatment tower and a flushing structure; the water collecting tank is connected with a cylindrical sewage treatment tower through a pipeline, the inner wall of the sewage treatment tower is provided with a spiral diversion groove which spirals downwards, the diversion groove is arranged along the tangential direction of the sewage treatment tower, and the upper end inlet of the diversion groove is communicated with a sewage inlet on the side surface of the sewage treatment tower; a sludge outlet valve is arranged at the bottom of the sewage treatment tower, a central suction pipe vertically extends downwards from the center of the upper part of the sewage treatment tower, and an outlet at the outer end of the central suction pipe is communicated with the flushing structure through a pump; the flushing structure comprises a flushing pipe body, the flushing pipe body is provided with a water inlet communicated with a water outlet of the pump, a plurality of parallel flushing ports are formed in the lower portion of the flushing pipe body along the length direction, impurity discharging ports are formed in the flushing pipe body, a rotating shaft capable of rotating is arranged in the flushing pipe body along the length direction, and a brush for cleaning the inner wall of the flushing pipe body is arranged in the rotating shaft.

2. The sludge treatment circulation flushing device of claim 1, wherein: the impurity discharging port is arranged at the opposite end of the water inlet of the flushing pipe body.

3. The sludge treatment circulation flushing device of claim 1, wherein: the driving end of the rotating shaft is connected with a driving motor or a driving hand wheel.

4. The sludge treatment circulation flushing device of claim 1, wherein: the central suction pipe is fixed on the inner wall of the sewage treatment tower through a support, and the bottom of the central suction pipe is provided with a bucket-shaped filter cover.

5. The sludge treatment circulation flushing device of claim 1, wherein: the bottom of sewage treatment tower is provided with changeover portion and sediment section, and the changeover portion is the toper structure, is provided with the toper cover in the sediment section, and there is the clearance in the lateral wall of toper cover and sediment section.

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