Tail water sediment treatment and removal device

Abstract

The utility model discloses a tail water sedimentation treatment removal device, and particularly relates to the technical field of sewage treatment, the tail water sedimentation treatment removal device comprises a dosing stirring tank, a sedimentation tank and a microfilter which are sequentially communicated, a stirring piece is arranged in the dosing stirring tank, a through hole is communicated between the bottom ends of the dosing stirring tank and the sedimentation tank, and an upper inclined pipe fitting and a lower inclined pipe fitting are arranged in the sedimentation tank. Cleaning pieces capable of moving back and forth are arranged at the tops of the upper and lower groups of inclined pipe fittings, extend to the outer side of the sedimentation tank and are fixedly connected with the end part of the microfilter. According to the utility model, the microfilter is utilized to intercept solid particles in sewage and realize solid-liquid separation, so that the size of the whole precipitation pretreatment structure for the sewage tail water is reduced, the precipitation pretreatment structure is energy-saving and efficient, small in occupied area, stable in operation and convenient to manage, and the installation, transportation and use costs are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically, to a tail water sedimentation treatment and removal device. Background Art

[0002] The first procedure in the sewage treatment process is pretreatment. For the pretreatment of fine suspended solids, inclined tube sedimentation tanks and flotation machines are usually used. The diameter of the flocculants after treatment is generally more than 1mm. The volume of these two types of equipment is often determined by the required processing volume. The larger the processing volume, the larger the volume required. Therefore, the production, transportation and installation costs of the equipment are relatively high. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a tailwater sedimentation treatment and removal device, comprising a dosing stirring tank, a sedimentation tank and a microfilter connected in sequence, a stirring element is installed inside the dosing stirring tank, a through hole is connected between the bottom ends of the dosing stirring tank and the sedimentation tank, two upper and lower groups of inclined pipe fittings are installed inside the sedimentation tank, and cleaning elements that can move back and forth are arranged on the tops of the upper and lower groups of inclined pipe fittings, the cleaning elements extend to the outside of the sedimentation tank and are fixedly connected to the end of the microfilter, and a sewage pipe is connected between the end of the microfilter on the water inlet side and the bottom end of the stirring tank.

[0004] In a preferred embodiment, a gap is left between the upper and lower groups of inclined pipe fittings, and the inclined pipe fittings include an inclined plate fixed on the inner wall of the sedimentation tank and a plurality of inclined tubes embedded in the inclined plate. The upper and lower ends of the inclined tubes are connected and inclined, and the bottom end of the cleaning piece is attached to the top surface of the inclined tube.

[0005] In a preferred embodiment, the cleaning part includes a plurality of equally spaced scrapers, which are vertically arranged above the corresponding inclined tubes, and the bottom ends of the scrapers are in contact with the top ends of the inclined tubes. A fixed connecting rod is connected between the scrapers, and the connecting rod passes through the sedimentation tank and extends to one side of the microfiltration machine. A servo push rod is connected to the outer end of the connecting rod.

[0006] In a preferred embodiment, a first submersible sewage pump is installed at the bottom of the sedimentation tank, and a first pipeline is connected to the output end of the first submersible sewage pump. The first pipeline runs through the sedimentation tank and extends to the outside of the sedimentation tank.

[0007] In a preferred embodiment, the water inlet end of the microfilter is provided with an inlet pipe and a return pipe, the end of the water inlet pipe is plugged into the top outer wall of the sedimentation tank and communicated with the interior of the sedimentation tank, and the return pipe extends downward to communicate with the first pipeline.

[0008] In a preferred embodiment, a second submersible sewage pump is also installed on the first pipeline.

[0009] Technical effects and advantages of the utility model:

[0010] The utility model utilizes a microfiltration machine to intercept solid particles in the sewage body and realize solid-liquid separation, so that the volume of the sedimentation pretreatment structure of the entire sewage tail water is reduced, energy-saving and high efficiency is achieved, a small footprint, stable operation, convenient management, and reduced installation, transportation and use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Explanation of the reference numerals: 1 dosing stirring tank, 2 sedimentation tank, 3 microfiltration machine, 4 stirring element, 5 through hole, 6 inclined plate, 7 inclined tube, 8 scraper, 9 connecting rod, 10 servo push rod, 11 first submersible sewage pump, 12 first pipeline, 13 water inlet pipe, 14 return pipe, 15 second submersible sewage pump, 16 sewage input pipe, 17 dosing pipe, 18 sealing element. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0014] like Figure 1 A tailwater sedimentation treatment and removal device shown in the figure comprises a dosing stirring tank 1, a sedimentation tank 2 and a microfilter 3 which are connected in sequence, a stirring member 4 is installed inside the dosing stirring tank 1, a through hole 5 is connected between the bottom ends of the dosing stirring tank 1 and the sedimentation tank 2, two upper and lower groups of inclined pipes are installed inside the sedimentation tank 2, and cleaning members that move back and forth are arranged on the tops of the upper and lower groups of inclined pipes, and the cleaning members extend to the outside of the sedimentation tank 2 and are fixedly connected to the end of the microfilter 3;

[0015] Based on the above, a dosing pipe 17 for adding flocculants is installed at the top of the dosing stirring tank 1, and a sewage input pipe 16 is installed on the outer wall of the dosing stirring tank 1. The sewage to be treated enters the interior of the dosing stirring tank 1 from the sewage input pipe 16, and then the flocculant is added to the tank from the dosing pipe 17. The sewage is stirred and flocculated by the stirring member 4, and the treated sewage is transported from the through hole 5 to the sedimentation tank 2. After filtering treatment through the inclined pipe, it is transported to the microfilter 3 for secondary filtration. The microfilter 3 is used to intercept solid particles in the sewage body to achieve solid-liquid separation, so that the volume of the sedimentation pretreatment structure of the entire sewage tail water is reduced, energy-saving and high-efficiency, small footprint, stable operation, convenient management, and reduced installation, transportation and use costs.

[0016] A gap is left between the upper and lower groups of inclined pipes, the inclined pipes include an inclined plate 6 fixed on the inner wall of the sedimentation tank 2 and a plurality of inclined pipes 7 embedded in the inclined plate 6, the upper and lower ends of the inclined pipes 7 are connected and inclined, and the bottom end of the cleaning piece is attached to the top surface of the inclined pipe 7;

[0017] When the sewage after flocculation treatment enters the sedimentation tank 2 from the through hole 5, the flocculated solid particles are stratified and precipitated by the inclined path when passing through the inclined tube 7;

[0018] Furthermore, due to the provision of two upper and lower groups of inclined pipes, multiple layered sedimentation can be achieved within a limited equipment volume, and solid particles in sewage can be effectively precipitated, collected and separated.

[0019] The cleaning member includes a plurality of equally spaced scrapers 8, which are vertically arranged above the corresponding inclined tubes, and the bottom ends of the scrapers 8 are in contact with the top ends of the inclined tubes 7. A fixed connecting rod 9 is connected between the plurality of scrapers 8, and the connecting rod 9 passes through the sedimentation tank 2 and extends to one side of the microfilter 3. A servo push rod 10 is connected to the outer end of the connecting rod 9.

[0020] Among them, the servo push rod 10 is fixedly connected to a support plate, which is fixed to the end of the microfiltration machine 3 to provide a support structure for the installation of the servo push rod 10, and a seal 18 is sleeved on the outside of the connecting rod 9, and the seal 18 is embedded in the outer wall of the sedimentation tank 2. When the servo push rod 10 works to drive the connecting rod 9 and the scraper 8 to move, the sealing of the connection between the connecting rod 9 and the sedimentation tank 2 is guaranteed to prevent sewage from leaking.

[0021] A first submersible sewage pump 11 is installed at the bottom of the sedimentation tank 2, and a first pipeline 12 is connected to the output end of the first submersible sewage pump 11. The first pipeline 12 runs through the sedimentation tank 2 and extends to the outside of the sedimentation tank 2.

[0022] Furthermore, after the inclined tube is subjected to sedimentation and filtration, the servo push rod 10 is used to drive the connecting rod 9 and the scraper 8 to move, and the flocculated solid particles accumulated at the top of the inclined tube 7 are scraped and cleaned, and then fall downward along the inclined tube 7 by gravity, so as to avoid them staying at the top of the inclined tube 7 for a long time, causing blockage and incomplete filtration, and at the same time, prevent the flocculated solid particles from entering the microfiltration machine 3 along the pipeline.

[0023] An inlet pipe 13 and a return pipe 14 are provided at the water inlet end of the microfilter 3. The end of the inlet pipe 13 is inserted into the top outer wall of the sedimentation tank 2 and communicated with the interior of the sedimentation tank 2. The return pipe 14 extends downward and communicates with the first pipeline 12. A second submersible sewage pump 15 is also installed on the first pipeline 12.

[0024] On the basis of the above, the sewage treated in the sedimentation tank 2 enters the microfilter 3 from the water inlet pipe 13, and the sewage is filtered by the 0.01-0.15mm microporous screen inside the microfilter 3. At the same time, the treated flocculated particles can flow back outward along the return pipe 14, and then merge into the first pipeline 12. In this process, the second submersible sewage pump 15 is used to increase the return rate of the flocculated solid particles. At the same time, the first submersible sewage pump 11 transports the precipitated flocculated particles to the first pipeline 12 at the bottom of the sedimentation tank 2, and the flocculated particles filtered and treated in the sedimentation tank 2 and the microfilter 3 are synchronously output and cleaned.

[0025] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A tailwater sedimentation treatment and removal device, characterized in that: The invention comprises a dosing stirring tank, a sedimentation tank and a microfilter which are connected in sequence. A stirring piece is installed inside the dosing stirring tank. A through hole is provided between the bottom ends of the dosing stirring tank and the sedimentation tank. An upper and a lower set of inclined pipes are installed inside the sedimentation tank. A cleaning piece which can move back and forth is arranged on the top of the upper and lower sets of inclined pipes. The cleaning piece extends to the outside of the sedimentation tank and is fixedly connected to the end of the microfilter.

2. A tailwater sedimentation treatment and removal device according to claim 1, characterized in that: A gap is left between the upper and lower groups of inclined pipe fittings, the inclined pipe fittings include an inclined plate fixed on the inner wall of the sedimentation tank and a plurality of inclined pipes embedded in the inclined plate, the upper and lower ends of the inclined pipes are connected and inclinedly arranged, and the bottom end of the cleaning piece is attached to the top surface of the inclined pipe.

3. A tailwater sedimentation treatment and removal device according to claim 2, characterized in that: The cleaning part includes a plurality of equally spaced scrapers, which are vertically arranged above the corresponding inclined tubes, and the bottom ends of the scrapers are fitted with the top ends of the inclined tubes. A fixed connecting rod is connected between the scrapers, and the connecting rod passes through the sedimentation tank and extends to one side of the microfiltration machine. A servo push rod is connected to the outer end of the connecting rod.

4. A tailwater sedimentation treatment and removal device according to claim 3, characterized in that: A first submersible sewage pump is installed at the bottom of the sedimentation tank, and a first pipeline is connected to the output end of the first submersible sewage pump. The first pipeline runs through the sedimentation tank and extends to the outside of the sedimentation tank.

5. The tailwater sedimentation treatment and removal device according to claim 4 is characterized in that: A water inlet pipe and a return pipe are arranged at one water inlet end of the microfilter, the end of the water inlet pipe is plugged into the top outer wall of the sedimentation tank and communicated with the interior of the sedimentation tank, and the return pipe extends downward and communicates with the first pipeline.

6. The tailwater sedimentation treatment and removal device according to claim 5, characterized in that: A second submersible sewage pump is also installed on the first pipeline.

Images