CN111643947A - Primary sewage pulse type solid-liquid separation treatment device - Google Patents

Abstract

The invention discloses a raw sewage pulse type solid-liquid separation and treatment device, which comprises a main box body, an auxiliary box body is connected to the upper side of the main box body, a plurality of mesh cylinder racks are arranged in the main box body, and filters are arranged on the outside of the mesh cylinder racks. Cloth bag, the main box is connected with an intermediate water inlet pipe, the intermediate water inlet pipe is installed with a first valve and a first power pump, the intermediate water inlet pipe is connected with a sewage water storage tank, and a sewage return pipe is connected between the main box and the sewage storage tank, and the sewage returns A second valve is installed in the pipe, a middle water outlet pipe is connected to the auxiliary box, a third valve is installed on the middle water outlet pipe, a clean water storage tank is connected to the middle water outlet pipe, a backflushing water pipe is arranged in the auxiliary box body, and the backflushing water pipe is connected with The net cylinder racks correspond one-to-one with the nozzles, the backflushing water pipe is equipped with a pulse valve and a second power pump, and the backflushing water pipe and the clean water storage tank are connected by a clean water return pipe; the present invention is used for primary sewage treatment and realizes the Solid-liquid separation, using bag filter structure, with automatic cleaning function.

Description

A pulsed solid-liquid separation treatment device for primary sewage

technical field

The invention belongs to the technical field of sewage treatment equipment, and in particular relates to a pulsed solid-liquid separation treatment device for primary sewage.

Background technique

With the rapid development of my country's economy, the discharge of industrial and domestic sewage is increasing day by day. How to turn waste into treasure and reuse raw sewage has received more and more attention from the society. The primary sewage source heat pump is to recycle the low-grade energy in the primary sewage, which fully reflects the advantages of turning waste into treasure and reducing initial investment. However, the water quality of raw sewage is relatively poor, and the solid impurities in the sewage are high. If the raw sewage directly enters the heat pump heat exchanger, it is easy to cause scaling and blockage of the heat exchanger of the heat pump system, which affects the normal operation of the heat pump air conditioner. The traditional solution is to build a large sewage tank or use a sewage anti-blocking machine. The cost of building a large sewage tank is high. When using a sewage anti-blocking machine, the operating life of the sewage anti-blocking machine is short and the equipment cost is high. Therefore, the development of primary sewage filtration. It is of great practical significance to improve the quality of sewage entering the heat pump heat exchanger and meet the requirements of the heat exchanger for the quality of primary sewage.

The existing primary sewage treatment filtration device generally uses the working principle of centrifugal cyclone, and cooperates with the filtration device to realize the separation and discharge of solid impurities in the primary sewage. The sewage treatment effect of this kind of device is poor, and there are many impurities after treatment. With the accumulation of impurities, the treatment capacity decreases rapidly, and it needs to be cleaned regularly, but the internal structure is not easy to clean.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a primary sewage pulse type solid-liquid separation treatment device, which is used for primary sewage treatment and realizes the solid-liquid separation of sewage.

In order to achieve the above purpose, the present invention provides the following technical solutions: a primary sewage pulse type solid-liquid separation and treatment device, including a main box body, the lower side of the main box body is provided with legs, and the lower end of the main box body is provided with a tapered portion , the lower end of the tapered part is connected to the sewage pipe, the upper side of the main box is integrally connected with the auxiliary box, the main box is evenly and vertically arranged with a number of mesh cylinder racks, the upper end of the mesh cylinder rack penetrates the upper side wall of the main box and extends to the auxiliary box. In the body, filter bags are arranged on the outside of the mesh cylinder frame. The lower part of the main box is connected with an intermediate water inlet pipe. The middle water inlet pipe is installed with a first valve and a first power pump. The middle water inlet pipe is connected with a sewage water storage tank. In the water inlet pipe, a sewage return pipe is connected between the upper part of the main box body and the sewage water storage tank, the sewage return pipe is installed with a second valve, the auxiliary box body is connected with an intermediate water outlet pipe, the middle water outlet pipe is installed with a third valve, and the middle water outlet pipe is connected with a The clean water storage tank is connected with a clean water outlet pipe, and a backflush water pipe is arranged in the auxiliary box. The power pump, the backflushing water pipe and the clean water storage tank are connected by a clean water return pipe.

Further, the sewage discharge pipe is provided with a spiral conveying blade, and one end of the sewage discharge pipe is provided with a motor for driving the rotation of the spiral conveying blade.

Further, the lower side wall of the auxiliary box body is the upper side wall of the main box body, the upper side wall of the main box body is provided with a through hole communicating with the auxiliary box body, the upper end of the mesh cylinder frame is located in this through hole, and the mesh cylinder is located in the through hole. The frame is fixedly connected with the upper side wall of the main box body.

Further, the bag mouth of the filter cloth bag is sealedly connected with the lower side edge of the through hole of the upper side wall of the main box body.

Further, the lower part of the sewage water storage tank is connected with the middle water inlet pipe, and the upper part of the sewage water storage tank is connected with the sewage water inlet pipe and the sewage return pipe.

Further, the lower part of the purified water storage tank is connected with the purified water return pipe, and the upper part of the purified water storage tank is connected with the middle water outlet pipe and the purified water outlet pipe.

The beneficial effects of the present invention are as follows:

The invention greatly improves the original sewage treatment effect through the sewage treatment structure of the filter cloth bag, significantly reduces the impurities in the treated water flow, enhances the sewage discharge capacity through the sewage discharge pipe of the screw conveying structure, and adapts to the increase of the amount of the sewage filtered by the sewage treatment structure;

The invention realizes the cleaning of the accumulated dirt on the outside of the filter bag through the recoil structure, has high efficiency and good effect, ensures that the sewage treatment capacity of the filter bag does not suffer excessive attenuation, improves the service life of the device, prevents clogging, and reduces the cleaning labor intensity;

The invention utilizes the treated purified water to recoil the filter bag circulation, saves water resources, is self-sufficient, and has excellent effects, does not rely on external water sources, part of the recoiled impurities is discharged through the sewage pipe, and part is refiltered, the design is novel, and the operation Stablize.

Description of drawings

FIG. 1 is a schematic diagram of the water flow in the sewage treatment state of the present invention.

FIG. 2 is a schematic diagram of the water flow in the recoil cleaning state of the present invention.

In the picture: 1. Main box, 2. Outriggers, 3. Auxiliary box, 4. Conical part, 5. Sewage pipe, 6. Cylinder frame, 7. Filter bag, 8. Intermediate water inlet pipe, 9. The first valve, 10, the first power pump, 11, the sewage water storage tank, 12, the sewage inlet pipe, 13, the sewage return pipe, 14, the second valve, 15, the middle water outlet pipe, 16, the third valve, 17, the net Water storage tank, 18, purified water outlet pipe, 19, back flushing water pipe, 20, nozzle, 21, pulse valve, 22, second power pump, 23, purified water return pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "middle", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", " The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description The present invention and simplified description do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Referring to FIGS. 1-2 , the present embodiment provides a pulsed solid-liquid separation and treatment device for primary sewage, including a main box 1 , the lower side of the main box 1 is provided with legs 2 , and the lower end of the main box 1 is provided with a cone Shaped part 4, the lower end of the tapered part 1 is connected to the sewage pipe 5, the upper side of the main box body 1 is integrally connected with the auxiliary box body 3, and the main box body 1 is evenly vertically arranged with a number of mesh cylinder frames 6, the upper end of the mesh cylinder frame 6 penetrates through The upper side wall of the main box body 1 extends into the auxiliary box body 3, the outer side of the mesh cylinder frame 6 is provided with a filter cloth bag 7, the lower part of the main box body 1 is connected with an intermediate water inlet pipe 8, and the middle water inlet pipe 8 is installed with a first valve 9 With the first power pump 10, the middle water inlet pipe 8 is connected with a sewage water storage tank 11, the sewage water storage tank 11 is connected with the sewage water inlet pipe 12, the upper part of the main box 1 and the sewage water storage tank 11 are connected with a sewage return pipe 13, and the sewage return pipe 13 A second valve 14 is installed, an intermediate water outlet pipe 15 is connected to the auxiliary box body 3, a third valve 16 is installed on the intermediate water outlet pipe 15, a purified water storage tank 17 is connected to the intermediate water outlet pipe 15, and a purified water storage tank 17 is connected to the purified water. The water outlet pipe 18, the auxiliary box body 3 is provided with a backflushing water pipe 19, and the backflushing water pipe 19 is connected with a nozzle 20 corresponding to the net cylinder frame 6 one-to-one. The flushing pipe 19 is provided with a pulse valve 21 and a second power pump 22 , and the backflushing pipe 19 and the clean water storage tank 17 are connected through a clean water return pipe 23 .

In order to enhance the sewage discharge capacity of the sewage pipe 5 and prevent the sewage pipe 5 from being blocked, in this embodiment, the sewage pipe 5 is provided with a spiral conveying blade, and one end of the sewage pipe 5 is provided with a motor for driving the rotation of the spiral conveying blade.

In order to make the purified water passing through the filter bag 7 enter the auxiliary box 3 through the mesh cylinder frame 6, in this embodiment, the lower side wall of the auxiliary box 3 is the upper side wall of the main box 1, and the main box 1. The upper side wall is provided with a through hole communicating with the auxiliary box body 3, the upper end of the mesh cylinder frame 6 is located in this through hole, and the mesh cylinder frame 6 is fixedly connected to the upper side wall of the main box body 1.

In order for the sewage to flow through the filter cloth bag 7 , in this embodiment, the bag mouth of the filter cloth bag 7 is sealedly connected to the lower edge of the through hole on the upper side wall of the main box 1 .

In order to ensure stable operation of the device and stable conduction of the filtered water flow, in this embodiment, the lower part of the sewage water storage tank 11 is connected to the intermediate water inlet pipe 8 , and the upper part of the sewage water storage tank 11 is connected to the sewage water inlet pipe 12 and the sewage return pipe 13 .

In order to ensure the stable operation of the device and the stable conduction of the backflushing water flow, in this embodiment, the lower part of the purified water storage tank 17 is connected to the purified water return pipe 23, and the upper part of the purified water storage tank 17 is connected to the middle water outlet pipe 15 and the purified water outlet Water pipe 18 is connected.

The working principle of the present invention: in the state of sewage filtration, the first valve 9, the third valve 16 and the first power pump 10 are opened, the second valve 14, the pulse valve 21 and the second power pump 22 are closed; 12 Enter the sewage water storage tank 11, the sewage water storage tank 11 temporarily stores the sewage, the first power pump 10 introduces the sewage in the sewage water storage tank 11 into the main tank 1 through the intermediate water inlet pipe 8, and the sewage entering the main tank 1 diverges and expands in volume , a part of the larger impurities enter the conical part 4 of the main box 1 by inertia or natural sedimentation, and are regularly discharged through the sewage pipe 5; most of the remaining smaller impurities rise with the water flow and pass through the filter bag 7 to remove the impurities. After being retained on the outside of the filter cloth bag 7, the purified water flows through the mesh cylinder frame 6 and enters the auxiliary box 3, and then enters the purified water storage tank 17 through the intermediate water outlet pipe 15, and the purified water storage tank 17 temporarily stores the purified water. With the accumulation of water, the purified water is discharged from the purified water outlet pipe 18;

Self-cleaning recoil: With the continuous progress of filtration, the impurities on the outside of the filter bag 7 continue to accumulate, the resistance gradually increases, and the filter bag 7 needs to be recoiled; close the first valve 9, the third valve 16 and the first power pump 10. Open the second valve 14 and the second power pump 22, and then open the pulse valve 21. The second power pump 22 introduces the clean water in the clean water storage tank 17 into the backflush water pipe 19 through the clean water return pipe 23, and makes the backwash pipe 19. The water in the flushing pipe 19 has high pressure, the pulse valve 21 sprays the high-pressure water flow through the nozzle 20 to the inside of the mesh cylinder frame 6 and the inside of the filter bag 7, the filter bag 7 expands rapidly, and produces a strong vibration, so that the impurities accumulated on the outside of the filter bag 7 Shake off and fall into the conical part 4 of the main box 1 to achieve the purpose of self-cleaning of the filter bag 7; part of the reverse water flow passing through the filter bag 7 returns to the sewage water storage tank 11 through the sewage return pipe 13 to avoid the main tank The water pressure in the body 1 is too large to ensure the stable operation of the structure.

In this paper, specific examples are used to illustrate the principles and implementations of the present invention. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present invention; meanwhile, for those skilled in the art, according to the present invention There will be changes in the specific implementation and application scope. To sum up, the content of this specification should not be construed as a limitation to the present invention.

Claims (6)

1. The utility model provides a primary sewage pulsed solid-liquid separation processing apparatus, includes the main tank body, its characterized in that: the lower side of the main tank body is provided with a supporting leg, the lower end of the main tank body is provided with a conical part, the lower end of the conical part is connected with a blow-off pipe, the upper side of the main tank body is integrally connected with an auxiliary tank body, a plurality of net barrel frames are uniformly and vertically arranged in the main tank body, the upper ends of the net barrel frames penetrate through the upper side wall of the main tank body and extend into the auxiliary tank body, the outer sides of the net barrel frames are respectively provided with a filtering cloth bag, the lower part of the main tank body is connected with a middle water inlet pipe, the middle water inlet pipe is provided with a first valve and a first power pump, the middle water inlet pipe is connected with a sewage storage tank, the sewage storage tank is connected with a sewage inlet pipe, a sewage return pipe is connected between the upper part of the main tank body, the backwash water pipe is connected with spray heads which are in one-to-one correspondence with the net barrel frame, the backwash water pipe is provided with a pulse valve and a second power pump, and the backwash water pipe is connected with the purified water storage tank through a purified water return pipe.

2. The pulse type solid-liquid separation treatment device for primary sewage of claim 1, which is characterized in that: a spiral conveying blade is arranged in the drain pipe, and a motor for driving the spiral conveying blade to rotate is arranged at one end of the drain pipe.

3. The pulse type solid-liquid separation treatment device for primary sewage of claim 2, which is characterized in that: the lower side wall of the auxiliary box body is the upper side wall of the main box body, the upper side wall of the main box body is provided with a through hole communicated with the auxiliary box body, the upper end of the mesh cylinder frame is positioned in the through hole, and the mesh cylinder frame is fixedly connected with the upper side wall of the main box body.

4. The pulse type solid-liquid separation treatment device for primary sewage of claim 3, characterized in that: the bag mouth of the filtering cloth bag is hermetically connected with the lower side edge of the through hole on the upper side wall of the main box body.

5. The pulse type solid-liquid separation treatment device for primary sewage of claim 4, which is characterized in that: the lower part of the sewage storage tank is connected with the middle water inlet pipe, and the upper part of the sewage storage tank is connected with the sewage inlet pipe and the sewage return pipe.

6. The pulse type solid-liquid separation treatment device for primary sewage of claim 5, which is characterized in that: the lower part of the purified water storage tank is connected with a purified water return pipe, and the upper part of the purified water storage tank is connected with a middle water outlet pipe and a purified water outlet pipe.

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