Precipitation and sludge discharge device for sewage treatment

Abstract

The utility model discloses a sedimentation and sludge discharge device for sewage treatment, which comprises a sedimentation tank, and the bottom of a material collecting frame is communicated with a collecting seat for collecting silt; through the design of the material collecting frame, the collecting seat, the cleaning pipe and other structures, the conical material collecting frame is arranged in the settling pond, so that deposited silt naturally slides to a central area, the problem of dispersion and accumulation caused by a flat bottom structure is avoided, and the silt can be temporarily stored in a centralized manner by matching with the collecting seat at the inner bottom, so that residues are greatly reduced, and the service life of the settling pond is prolonged. The sand suction pump is adjusted through the lifting assembly, a material suction opening of the sand suction pump can move into the collecting base, silt concentrated in the collecting base is pumped, the silt pumping efficiency is remarkably improved, the inner bottom of the material collecting frame is washed at high pressure through the cleaning pipe, the conveying pipe and the cleaning opening, the mobility is enhanced, it is ensured that high-viscosity silt smoothly enters the collecting base and is pumped and discharged, and the working efficiency is improved. And silt is prevented from remaining at the inner bottom of the washing and collecting frame, and the silt cleaning effect can be improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a sedimentation and sludge removal device for wastewater treatment. Background Technology

[0002] The first step in purifying existing water resources is to settle and filter impurities and sludge. After the sludge settles in the sedimentation tank, it needs to be cleaned.

[0003] The prior art provides a sludge discharge device for wastewater treatment (publication number CN217828997U). This utility model includes a wastewater treatment tank with a cover on top. Inlet and outlet pipes, communicating with the interior, are respectively embedded in the outer walls of both sides of the tank. Two stirring shafts are installed inside the tank, with several stirring blades fixedly mounted on the outer walls of the shafts. A drive roller is coaxially connected to one end of each stirring shaft, and the two drive rollers are connected by a belt drive.

[0004] The sedimentation tank of the above-mentioned sewage treatment sludge discharge device adopts a flat bottom structure design, which is used in conjunction with a sand suction pump to clean the sediment. However, this flat bottom structure has significant defects in actual operation: for example, the flat bottom design results in a lack of natural slope between the bottom of the tank and the sludge inlet of the sand suction pump, which will cause some sludge to be unable to be pumped out, resulting in incomplete sludge cleaning. Therefore, we need to propose a sedimentation sludge discharge device for sewage treatment. Utility Model Content

[0005] The purpose of this invention is to provide a sedimentation and sludge removal device for sewage treatment. By concentrating the sludge and extracting it, the sludge extraction efficiency is significantly improved. Furthermore, the sludge is high-pressure washed to prevent it from remaining in the sedimentation tank, thereby improving the sludge cleaning effect and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A sedimentation and sludge removal device for sewage treatment includes a sedimentation tank, a conical material collection frame fixedly connected inside the sedimentation tank, a collection seat for collecting sludge connected to the bottom of the material collection frame, a cleaning pipe fixedly installed on the inner wall of the sedimentation tank, a plurality of cleaning ports connected to the bottom of the cleaning pipe, and a conveying pipe connected to the cleaning pipe.

[0008] A support frame is fixedly installed on the top of the sedimentation tank. A lifting assembly is installed on the support frame, and a sand suction pump is installed on the lifting assembly. The suction port of the sand suction pump is located inside the collection seat.

[0009] Preferably, the lifting assembly comprises a winding mechanism and a connecting mechanism, the winding mechanism comprises a mounting frame, a rotating rod, a speed reducer motor, a winding disc and a connecting rope, the mounting frame is fixedly installed on the side of the support, the speed reducer motor is fixedly installed on the side of the mounting frame, the output shaft of the speed reducer motor is fixedly connected with the rotating rod through a shaft coupling, the rotating rod is rotatably installed in the mounting frame, the winding disc is fixedly installed on the rotating rod, and the connecting rope is wound on the winding disc.

[0010] Preferably, the connecting mechanism comprises a lifting plate and a fixing frame, the sand suction pump is fixedly installed in the lifting plate, and the fixing frame is fixedly connected to the top of the lifting plate.

[0011] Preferably, the support is provided with a through hole for avoiding the connecting rope, and the connecting rope is arranged in the through hole.

[0012] Preferably, the top of the lifting plate is symmetrically provided with two groups of guide rods, the top of the support is symmetrically provided with two groups of fixing sleeves corresponding to the guide rods, the guide rods are inserted into the support and the fixing sleeves, and the fixing sleeves are provided with fixing bolts which are in threaded connection with the surfaces of the guide rods.

[0013] Preferably, the side of the sedimentation tank is symmetrically provided with two groups of driving motors, the output shafts of the two groups of driving motors are fixedly provided with connecting rods through shaft couplings, the connecting rods are rotatably installed in the sedimentation tank, and the connecting rods are fixedly connected with a plurality of stirring blades.

[0014] Preferably, the discharge port of the sand suction pump is communicated with a blowdown hose for discharging the mud and sand.

[0015] Compared with the prior art, the present application has the advantages of:

[0016] The present application is provided with the material collecting frame, the collecting seat and the cleaning pipe, the material collecting frame is arranged in the sedimentation tank in a conical manner, so that the deposited mud and sand can naturally slide to the central area, the problem of dispersed accumulation caused by the flat bottom structure is avoided, the collecting seat is arranged at the inner bottom, so that the mud and sand can be temporarily stored in a concentrated manner, the residue is greatly reduced, the lifting assembly is used to adjust the sand suction pump, the suction port of the sand suction pump can be moved into the collecting seat to extract the concentrated mud and sand in the collecting seat, the mud and sand extraction efficiency is significantly improved, the inner bottom of the material collecting frame is high-pressure washed through the cleaning pipe, the conveying pipe and the cleaning port, the flowability is enhanced, the high-viscosity mud and sand can smoothly enter the collecting seat and be extracted, the residue of the mud and sand in the inner bottom of the material collecting frame is prevented, and the cleaning effect of the mud and sand is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The present application is provided with the material collecting frame, the collecting seat and the cleaning pipe, the material collecting frame is arranged in the sedimentation tank in a conical manner, so that the deposited mud and sand can naturally slide to the central area, the problem of dispersed accumulation caused by the flat bottom structure is avoided, the collecting seat is arranged at the inner bottom, so that the mud and sand can be temporarily stored in a concentrated manner, the residue is greatly reduced, the lifting assembly is used to adjust the sand suction pump, the suction port of the sand suction pump can be moved into the collecting seat to extract the concentrated mud and sand in the collecting seat, the mud and sand extraction efficiency is significantly improved, the inner bottom of the material collecting frame is high-pressure washed through the cleaning pipe, the conveying pipe and the cleaning port, the flowability is enhanced, the high-viscosity mud and sand can smoothly enter the collecting seat and be extracted, the residue of the mud and sand in the inner bottom of the material collecting frame is prevented, and the cleaning effect of the mud and sand is improved.

[0018] Fig. 2 It is a sectional view of the structure schematic diagram of the utility model;

[0019] Fig. 3 It is a structure schematic diagram of the utility model lifting assembly.

[0020] In the figure: 1, sedimentation tank, 2, material collecting frame, 3, collecting seat, 4, driving motor, 5, connecting rod, 6, stirring blade, 7, support, 8, mounting bracket, 9, rotating rod, 10, speed reducer, 11, winding disc, 12, connecting rope, 13, lifting plate, 14, fixing frame, 15, sand suction pump, 16, sewage discharge hose, 17, guide rod, 18, fixed sleeve, 19, fixing bolt, 20, cleaning pipe, 21, conveying pipe, 22, cleaning port, 23, through hole. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figs. 1-3 The utility model provides a technical scheme:

[0023] A sedimentation and sludge discharge device for sewage treatment, including the sedimentation tank 1, the inside fixedly connected with the material collecting frame 2 of the conical setting of sedimentation tank 1, the bottom of material collecting frame 2 is connected with the collecting seat 3 for mud sand collection, the inner wall of sedimentation tank 1 is fixedly installed with cleaning pipe 20, the bottom of cleaning pipe 20 is connected with multiple cleaning ports 22, and the conveying pipe 21 is connected on cleaning pipe 20.

[0024] The top of sedimentation tank 1 is fixedly installed with support 7, the lifting assembly is arranged on support 7, the sand suction pump 15 is arranged on the lifting assembly, and the suction port of sand suction pump 15 is arranged in collecting seat 3.

[0025] It should be noted that the conveying pipe 21 is connected with a water supply device, the water supply device delivers high-pressure water to the cleaning pipe 20 through the conveying pipe 21, the high-pressure water delivered into the cleaning pipe 20 is sprayed to the high-viscosity mud sand at the bottom of the material collecting frame 2 through the cleaning port 22, the high-viscosity mud sand is dispersed, the fluidity of the mud sand is enhanced to ensure that the high-viscosity mud sand enters the collecting seat 3 smoothly and is pumped out, the mud sand is prevented from remaining at the bottom of the material collecting frame 2, and the cleaning effect of the mud sand can be improved.

[0026] In an optional embodiment: the lifting assembly comprises a winding mechanism and a connecting mechanism, the winding mechanism comprises a mounting frame 8, a rotating rod 9, a speed reducer motor 10, a winding disc 11 and a connecting rope 12, the mounting frame 8 is fixedly installed on the side of the support 7, the speed reducer motor 10 is fixedly installed on the side of the mounting frame 8, the output shaft of the speed reducer motor 10 is fixedly connected with the rotating rod 9 through a shaft coupling, the rotating rod 9 is rotatably installed in the mounting frame 8, the winding disc 11 is fixedly installed on the rotating rod 9, and the connecting rope 12 is wound on the winding disc 11.

[0027] In an optional embodiment: the connecting mechanism comprises a lifting plate 13 and a fixed frame 14, the sand suction pump 15 is fixedly installed in the lifting plate 13, and the fixed frame 14 is fixedly connected to the top of the lifting plate 13, and the end of the connecting rope 12 is fixedly installed on the top of the fixed frame 14.

[0028] It should be noted that the model of the speed reducer motor 10 is NMRV050-20-0.75kW, which has a self-locking function, so that when the speed reducer motor 10 stops, the sand suction pump 15 cannot slide down due to gravity, and through the cooperation of the rotating rod 9, the speed reducer motor 10, the winding disc 11, the connecting rope 12, the lifting plate 13 and the fixed frame 14, the position of the sand suction pump 15 can be adjusted, so that the sand suction pump 15 can move into the sedimentation tank 1 when discharging the sediment, and the sediment in the aggregate frame 2 and the collection seat 3 can be extracted.

[0029] In an optional embodiment: the support 7 is provided with a through hole 23 for avoiding the connecting rope 12, and the connecting rope 12 is arranged in the through hole 23.

[0030] It should be noted that through the arrangement of the through hole 23, the connecting rope 12 is prevented from being worn by contacting the support 7, the connecting rope 12 is made of high-strength steel wire rope, which has the characteristics of anti-tension and corrosion resistance, and is not easy to deform or break after long-term use.

[0031] In an optional embodiment: two groups of guide rods 17 are symmetrically and fixedly installed on the top of the lifting plate 13, two groups of fixed sleeves 18 corresponding to the guide rods 17 are symmetrically and fixedly installed on the top of the support 7, the guide rods 17 are inserted into the support 7 and the fixed sleeves 18, and the fixed sleeves 18 are screwed with fixed bolts 19, and the threaded ends of the fixed bolts 19 abut against the surfaces of the guide rods 17.

[0032] It should be noted that through the arrangement of the guide rods 17, the guide rods 17 can guide the lifting plate 13, so that the sand suction pump 15 can move vertically stably, and through the cooperation of the fixed sleeves 18 and the fixed bolts 19, the fixed bolts 19 can abut against the guide rods 17, so that the stability of the sand suction pump 15 after lifting can be improved, and the sand suction pump 15 is a WQ100-15-7.5 type sand suction pump, which adopts a wear-resistant alloy impeller and is resistant to sediment wear.

[0033] In an optional embodiment: two groups of driving motors 4 are symmetrically fixedly installed on the side of the sedimentation tank 1, the output shafts of the two groups of driving motors 4 are fixedly installed with connecting rods 5 through couplings, the connecting rods 5 are rotatably installed in the sedimentation tank 1, and a plurality of groups of stirring blades 6 are fixedly connected on the connecting rods 5.

[0034] It should be noted that the model of the driving motor 4 adopts Y132S-4, which has large starting torque and is suitable for load starting (such as high-viscosity sewage after flocculant addition). Through the cooperation of the driving motor 4, the connecting rod 5 and the stirring blade 6, the flocculant and the sewage are stirred, which can accelerate the flocculation and sedimentation efficiency of the sludge in the sewage.

[0035] In an optional embodiment: the discharge port of the sludge suction pump 15 is communicated with a sewage discharge hose 16 for sludge discharge.

[0036] It should be noted that the sludge extracted by the sludge suction pump 15 can be discharged through the sewage discharge hose 16.

[0037] When it is necessary to discharge the sludge in the sedimentation tank 1, the flocculant is added into the sedimentation tank 1, the driving motor 4 is started, the output shaft of the driving motor 4 rotates to drive the stirring blade 6 to rotate, and the flocculant and the sewage are stirred through the rotation of the stirring blade 6, so that the sludge in the sewage is flocculated and precipitated.

[0038] After the sludge is flocculated and precipitated, the sewage in the sedimentation tank 1 after being flocculated and precipitated can be discharged through an external extraction device (such as a water pump and a water pipe, one end of the water pipe is arranged in the sedimentation tank 1, and the other end of the water pipe is installed at the water inlet end of the water pump), the speed reducer 10 is started, the output shaft of the speed reducer 10 rotates to drive the rotating rod 9 to rotate, so that the rotating rod 9 drives the winding disc 11 to rotate when rotating, the connecting rope 12 is discharged through the rotation of the winding disc 11, so that the lifting plate 13 can drive the sludge suction pump 15 to move downward, so that the suction port of the sludge suction pump 15 can move into the collecting seat 3, the fixing bolt 19 is tightly arranged on the guide rod 17 by twisting the fixing bolt 19 on the fixing sleeve 18, so as to fix the sludge suction pump 15.

[0039] After the sludge suction pump 15 is fixed, the sludge suction pump 15 is started, the sludge in the collecting seat 3 is extracted through the suction port of the sludge suction pump 15, and the extracted sludge is discharged from the sedimentation tank 1 through the sewage discharge hose 16. When the sludge in the collecting seat 3 is extracted, the sludge deposited on the bottom of the material collecting frame 2 naturally slides to the central area and can fall into the collecting seat 3 for concentration, so as to facilitate the extraction of the sludge by the sludge suction pump 15, which can significantly improve the sludge extraction efficiency.

[0040] When the staff observes that the inner bottom of the aggregate rack 2 is attached with high viscosity silt, water is supplied to the conveying pipe 21 through the water supply device, the high pressure water is conveyed to the cleaning pipe 20 through the conveying pipe 21, and is sprayed to the high viscosity silt on the inner bottom of the aggregate rack 2 through the cleaning port 22, so as to scatter the high viscosity silt, enhance the fluidity of the silt, ensure that the high viscosity silt enters the collecting seat 3 smoothly and is pumped out, prevent the silt from remaining on the inner bottom of the aggregate rack 2, and improve the cleaning effect of the silt.

[0041] The control mode of the silt suction pump 15, the driving motor 4 and the speed reducer motor 10 in the application file is automatically controlled through a controller, the control circuit of the controller can be realized through simple programming by those skilled in the art, which is common knowledge in the art, and the application file is mainly used to protect the structure and shape and the combination thereof, so the control mode and the circuit connection are not explained in detail, and the device is powered through an internal power supply or an external power supply.

[0042] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sedimentation sludge discharge device for sewage treatment, comprising a sedimentation tank (1), characterized in that: The inside of the sedimentation tank (1) is fixedly connected with a collecting frame (2) arranged in a tapered manner, the bottom of the collecting frame (2) is communicated with a collecting seat (3) for sediment concentration, the inner wall of the sedimentation tank (1) is fixedly installed with a cleaning pipe (20), the bottom of the cleaning pipe (20) is communicated with a plurality of cleaning openings (22), and the cleaning pipe (20) is communicated with a conveying pipe (21). The top of the sedimentation tank (1) is fixedly installed with a support (7), the support (7) is provided with a lifting assembly, the lifting assembly is provided with a sand suction pump (15), and the material suction port of the sand suction pump (15) is arranged in the collecting seat (3).

2. The sedimentation sludge discharge device for sewage treatment according to claim 1, characterized in that: The lifting assembly comprises a winding mechanism and a connecting mechanism, the winding mechanism comprises a mounting bracket (8), a rotating rod (9), a speed reducer (10), a winding disc (11) and a connecting rope (12), the mounting bracket (8) is fixedly installed on the side of the support (7), the speed reducer (10) is fixedly installed on the side of the mounting bracket (8), the output shaft of the speed reducer (10) is fixedly connected with the rotating rod (9) through a shaft coupling, the rotating rod (9) is rotatably installed in the mounting bracket (8), the winding disc (11) is fixedly installed on the rotating rod (9), and the connecting rope (12) is wound on the winding disc (11).

3. The sedimentation sludge discharge device for sewage treatment according to claim 2, characterized in that: The connecting mechanism comprises a lifting plate (13) and a fixed frame (14), the sand suction pump (15) is fixedly installed in the lifting plate (13), the fixed frame (14) is fixedly connected to the top of the lifting plate (13), and the end of the connecting rope (12) is fixedly installed on the top of the fixed frame (14).

4. The sedimentation sludge discharge device for sewage treatment according to claim 3, characterized in that: Holes (23) for avoiding the connecting rope (12) are formed in the support (7), and the connecting rope (12) is arranged in the holes (23).

5. The sedimentation sludge discharge device for sewage treatment according to claim 3, characterized in that: The top of the lifting plate (13) is fixedly installed with two groups of guide rods (17) in a symmetrical manner, the top of the support (7) is fixedly installed with two groups of fixed sleeves (18) corresponding to the guide rods (17) in a symmetrical manner, the guide rods (17) are inserted into the support (7) and the fixed sleeves (18), the fixed sleeves (18) are threadedly installed with fixed bolts (19), and the threaded ends of the fixed bolts (19) abut against the surfaces of the guide rods (17).

6. The sedimentation sludge discharge device for sewage treatment according to claim 1, characterized in that: The sides of the sedimentation tank (1) are fixedly installed with two groups of driving motors (4) in a symmetrical manner, the output shafts of the two groups of driving motors (4) are fixedly installed with connecting rods (5) through shaft couplings, the connecting rods (5) are rotatably installed in the sedimentation tank (1), and the connecting rods (5) are fixedly connected with a plurality of stirring blades (6).

7. The sedimentation sludge discharge device for sewage treatment according to claim 1, characterized in that: The discharge port of the sand suction pump (15) is communicated with a sewage hose (16) for discharging sediment.

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