CN215975494U - Laminated sludge dewatering device - Google Patents

Abstract

A laminated sludge dewatering device is mainly used for dewatering precipitated sludge and comprises an adjusting box and a dewatering device, wherein the adjusting box is a cylindrical box body with a wide top and a narrow bottom, a sludge inlet pipe is arranged at the upper part of the side surface of the box body, a multi-way valve is arranged on the sludge inlet pipe, and the valve is communicated with a cleaning pipe; a stirring device is installed in the center of a top plate of the adjusting box and is connected into the box body through a rotating shaft, a bidirectional valve is installed on the bottom surface of the outer portion of the box body and is respectively connected with a sewage discharge pipe and a sludge conveying pipe, and the outlet end of the sludge conveying pipe is connected with a sludge inlet of the dewatering device; the upper part of the outer wall of one end of the dewatering cylinder at the lower side of the dewatering device is provided with a sludge inlet, the lower part of the outer wall of the other end of the dewatering cylinder is provided with a water outlet, and the lower part of the outer wall of the other end of the dewatering cylinder is provided with a sludge outlet; the outer side of the end face of one side of the mud outlet of the dewatering cylinder is provided with a rotating device, the rotating device is connected into the interior of the dewatering cylinder along the central axis direction of the cylinder body through a spiral shaft, and a group of spiral laminations are arranged on the spiral shaft. The device has the characteristics of simple structure and good dehydration effect.

Description

Laminated sludge dewatering device

Technical Field

The utility model relates to a dewatering device, which is mainly used for dewatering sewage precipitated sludge.

Background

The laminated sludge dewatering machine is one water treating apparatus widely used in municipal sewage treatment and petrochemical industry, light industry, chemical fiber industry, pharmaceutical industry and other industry. The dehydration device often encounters the problems of blockage of the container wall and the mud pipe and difficult cleaning in the actual dehydration process, and the whole set of dehydration equipment is stopped in severe cases. It is necessary to develop a laminated sludge dewatering machine with simple structure and on-line cleaning capability to prolong the working period.

A prior patent (application No.: CN 201620328219.9) discloses a sludge dewatering purification apparatus comprising: the spiral propeller and the spiral filter cartridge are stacked, the spiral filter cartridge comprises a plurality of fixed rings and moving rings which are sequentially arranged at intervals, a filter seam is arranged between every two adjacent fixed rings and every two adjacent moving rings, the spiral filter cartridge is divided into a concentration section and a dewatering section, the diameters of the fixed rings and the moving rings of the concentration section are equal, and the diameters of the fixed rings and the moving rings of the dewatering section are gradually reduced along the spiral propelling direction. This sludge dewatering purifier is in the purification process of dehydrating, and mud gets into behind the dehydration section volume continuous by the compression, can effectively improve the dehydration effect of mud like this, simultaneously because the volume of dehydration section constantly reduces, the mud after the dehydration can be linked continuous extrusion, can not increase the extruded pressure of mud like this suddenly, consequently can not bring great resistance for screw propeller, can guarantee equipment even running, and then can effectively reduce the energy consumption of equipment. The problem that sludge residues are difficult to clean is difficult to alleviate to a certain extent by the mode of setting up stationary ring, rotating ring.

Disclosure of Invention

The utility model aims to provide a laminated sludge dewatering device with simple structure and good dewatering effect aiming at the defects of the prior art.

The laminated sludge dewatering device comprises an adjusting box and a dewatering device, wherein the adjusting box and the dewatering device are communicated through a sludge conveying pipe, are respectively arranged on a long support and a short support and are fixed on a base platform, the adjusting box is a cylindrical box body with a wide top and a narrow bottom, a sludge inlet pipe is arranged at the upper part of the side surface of the box body, a multi-way valve is arranged on the sludge inlet pipe, and the valve is communicated with a cleaning pipe; a stirring device is installed in the center of a top plate of the adjusting box and is connected into the box body through a rotating shaft, a plurality of groups of stirring paddles are arranged on the rotating shaft, a chemical dosing device is arranged on the top surface of the box body and is connected into the box body through a pipeline, a bidirectional valve is arranged on the bottom surface outside the box body and is respectively connected with a sewage discharge pipe and a sludge conveying pipe, and the outlet end of the sludge conveying pipe is connected with a sludge inlet of the dewatering device; the dewatering cylinder of the dewatering device is obliquely arranged by a short support along the mode that the inlet end is higher than the outlet end is lower, the upper part of the outer wall of the cylinder at one end of the lower side is provided with a mud inlet, the lower part of the outer wall of the cylinder at the other end is provided with a water outlet, the lower part of the outer wall of the cylinder at the other end is provided with a mud outlet, and the cleaning device is connected with an annular water spraying plate on the end surface of the high side in the cylinder; the outer side of the end face of one side of the sludge outlet of the dewatering cylinder is provided with a rotating device, the rotating device is connected into the barrel body along the central axis direction of the barrel body through a spiral shaft, and a group of spiral laminations are arranged on the spiral shaft.

Mud flows into the regulating box through a mud inlet pipe, the chemical dosing device and the stirring device are started simultaneously, a dehydration medicament is dosed into the mud and stirred, after 30 minutes, the two-way valve is opened and communicated with the mud conveying pipe, mud gravity flows into a dehydration cylinder of the dehydration device, at the moment, the rotating device starts to drive the screw shaft to drive the screw lamination to carry out sludge dehydration, the dehydrated mud is pushed to a mud outlet by the screw lamination and is discharged, and filtered water is discharged through the water outlet hole. When cleaning, the multidirectional valve is switched to connect the cleaning pipe with the mud inlet pipe, the bidirectional valve is connected with the drain pipe, cleaning liquid is injected into the adjusting box from the cleaning pipe, the stirring device continues stirring, and the cleaned sewage is discharged through the drain pipe to finish the cleaning of the adjusting box. And meanwhile, the cleaning device starts to spray and wash the inner wall of the dewatering cylinder, the spiral lamination and the spiral shaft, adhered sludge is washed, and muddy water is discharged through the water outlet hole to complete the cleaning of the dewatering device.

Further, install a screen cloth in the entrance point of mud pipe for it protects subsequent equipment to intercept the stereoplasm particulate matter in the muddy water.

Furthermore, the distance between the spiral laminations along the sludge propelling direction is gradually reduced, so that the internal pressure is gradually increased to improve the dehydration effect

Furthermore, a sludge collecting groove is arranged on the base platform right below the sludge outlet and used for collecting the dehydrated solid sludge.

Furthermore, a drainage groove is arranged on the base platform right below the water outlet hole and used for collecting water after sludge filtration.

The utility model has the beneficial effects that:

1. through set up cleaning system in the device, carry out online cleaning to adjusting container and dewatering device, can effectively improve the life cycle of equipment.

2. The spiral lamination with the gradually decreased distance is arranged for dehydration, so that the pressure in the dehydration cylinder can be gradually increased to improve the dehydration rate.

3. Through high-order adjusting device that sets up, through gravity flow filling mud to dewatering device in, energy saving consumes.

Drawings

Fig. 1 is a schematic structural diagram of the utility model.

In the figure: 1 mud inlet pipe, 1-1 screen mesh, 2 multi-directional valves, 3 dosing devices, 4 adjusting boxes, 5 stirring devices, 6 rotating shafts, 7 stirring paddles, 8 mud conveying pipes, 9 two-way valves, 10 dehydration devices, 11 mud inlets, 12 rotating devices, 13 dehydration cylinders, 14 spiral laminations, 15 spiral shafts, 16 mud outlets, 17 mud collecting grooves, 18 water outlets, 19 drainage grooves, 20 cleaning devices, 21 annular water spraying pore plates, 22 short supports, 23 long supports, 24 base tables, 25 cleaning pipes and 26 sewage discharge pipes.

Detailed Description

Example 1:

as shown in fig. 1, a laminated sludge dewatering device comprises an adjusting box 4 and a dewatering device 10, wherein the adjusting box 4 and the dewatering device 10 are communicated through a sludge conveying pipe 8, are respectively installed on a long support 23 and a short support 22 and are fixed on a base table 24, the adjusting box 4 is a cylindrical box body with a wide top and a narrow bottom, a sludge inlet pipe 1 is installed on the upper part of the side surface of the box body, a screen 1-1 is installed in the inlet end of the sludge inlet pipe 1, a multi-way valve 2 is installed on the sludge inlet pipe 1, and the valve is communicated with a cleaning pipe 25; a stirring device 5 is installed in the center of the top plate of the adjusting box 4, the stirring device 5 is connected into the box body through a rotating shaft 6, a plurality of groups of stirring paddles 7 are arranged on the rotating shaft 6, a chemical dosing device 3 is arranged on the top surface of the box body and connected into the box body through a pipeline, a bidirectional valve 9 is arranged on the bottom surface of the outer part of the box body, the bidirectional valve 9 is respectively connected with a sewage discharge pipe 26 and a mud conveying pipe 8, and the outlet end of the mud conveying pipe 8 is connected into a mud inlet 11 of the dewatering device 10; the dewatering cylinder 13 of the dewatering device 10 is obliquely arranged along the mode that the inlet end is higher than the outlet end is lower through a short support 22, the upper part of the outer wall of the cylinder at one end of the lower side is provided with a mud inlet 11, the lower part of the outer wall of the cylinder is provided with a water outlet hole 18, a base platform 24 right below the water outlet hole 18 is provided with a water discharge groove 19, the lower part of the outer wall of the cylinder at the other end is provided with a mud outlet 16, a mud collecting groove 17 is arranged on the base platform 24 right below the mud outlet 16, the upper part of the outer wall of the cylinder is provided with a cleaning device 20, and the cleaning device 20 is connected with an annular water spraying plate 21 on the high-side end surface in the cylinder; the outer side of the end face of one side of a sludge outlet 16 of the dewatering cylinder 13 is provided with a rotating device 12, the rotating device 12 is connected into the interior of the dewatering cylinder along the central axis direction of the cylinder body through a spiral shaft 15, a group of spiral laminations 14 is arranged on the spiral shaft 15, and the distance between the spiral laminations 14 along the sludge propelling direction is gradually reduced.

Mud flows into the adjusting box 4 through the mud inlet pipe 1, the chemical dosing device 3 and the stirring device 5 are started simultaneously, a dehydration medicament is added into the mud and stirred, after 30 minutes, the two-way valve 9 is opened and communicated with the mud conveying pipe 8, the mud flows into the dehydration cylinder 13 of the dehydration device 10 by gravity, meanwhile, the rotating device 12 starts to drive the screw shaft 15 to drive the screw lamination 14 to carry out mud dehydration, the dehydrated mud is pushed to the mud outlet by the screw lamination and is discharged, and the filtered water is discharged through the water outlet hole 18. When cleaning, the multi-way valve 2 is switched to connect the cleaning pipe 25 with the sludge inlet pipe 1, the two-way valve 9 is connected with the sewage discharge pipe 26, cleaning liquid is injected into the adjusting box 4 from the cleaning pipe 25, the stirring device continues stirring, and the cleaned sewage is discharged through the sewage discharge pipe 26 to finish the cleaning of the adjusting box. Simultaneously belt cleaning device starts to carry out the spray rinsing to dewatering cylinder 13 inner wall, spiral lamination 14 and screw axis 15, erodees the mud of adhesion, and mud water discharges through apopore 18, accomplishes the washing to dewatering device 10.

Claims (5)

1. The utility model provides a lamination sludge dewatering device, includes regulating box and dewatering device, regulating box and dewatering device pass through defeated mud pipe intercommunication and install respectively on long support and short support and fix on the base bench its characterized in that: the adjusting box is a cylindrical box body with a wide top and a narrow bottom, a mud inlet pipe is arranged at the upper part of the side surface of the box body, a multidirectional valve is arranged on the mud inlet pipe, and the valve is communicated with a cleaning pipe; a stirring device is installed in the center of a top plate of the adjusting box and is connected into the box body through a rotating shaft, a plurality of groups of stirring paddles are arranged on the rotating shaft, a chemical dosing device is arranged on the top surface of the box body and is connected into the box body through a pipeline, a bidirectional valve is arranged on the bottom surface outside the box body and is respectively connected with a sewage discharge pipe and a sludge conveying pipe, and the outlet end of the sludge conveying pipe is connected with a sludge inlet of the dewatering device; the dewatering cylinder of the dewatering device is obliquely arranged by a short support along the mode that the inlet end is higher than the outlet end is lower, the upper part of the outer wall of the cylinder at one end of the lower side is provided with a mud inlet, the lower part of the outer wall of the cylinder at the other end is provided with a water outlet, the lower part of the outer wall of the cylinder at the other end is provided with a mud outlet, and the cleaning device is connected with an annular water spraying plate on the end surface of the high side in the cylinder; the outer side of the end face of one side of the sludge outlet of the dewatering cylinder is provided with a rotating device, the rotating device is connected into the barrel body along the central axis direction of the barrel body through a spiral shaft, and a group of spiral laminations are arranged on the spiral shaft.

2. The laminated sludge dewatering device of claim 1, wherein: a screen is arranged in the inlet end of the mud inlet pipe.

3. The laminated sludge dewatering device of claim 1, wherein: the distance between the spiral laminations is gradually reduced along the sludge propelling direction.

4. The laminated sludge dewatering device of claim 1, wherein: a mud collecting groove is arranged on the base platform under the mud outlet.

5. The laminated sludge dewatering device of claim 1, wherein: a drainage groove is arranged on the base platform right below the water outlet hole.

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