Efficient phosphorus removal equipment

Abstract

The utility model discloses efficient phosphorus removal equipment, which relates to the technical field of wastewater treatment and comprises a separation barrel and a dosing pipe, and the upper part and the lower part of the separation barrel are respectively in a circular barrel shape and an inverted conical barrel shape; one side of the upper part of the separation cylinder is connected with a water inlet pipe for supplying sewage; a dephosphorization agent is added into the water inlet pipe by the dosing pipe; one end of the water inlet pipe close to the separation cylinder is tangent to the upper inner wall of the separation cylinder; the inner cylinder is arranged on the inner side of the separation cylinder and extends to the lower portion of the separation cylinder from the upper end of the separation cylinder, and a water outlet pipe is connected to the upper portion of the inner cylinder and penetrates through the side wall of the separation cylinder to extend out of the separation cylinder; according to the utility model, water is fed through the water inlet pipe and is tangent to the separation cylinder, and waste water and a dephosphorization agent entering the separation cylinder rotate through the water outlet structure of the central inner cylinder, so that centrifugal force is generated, precipitates can be promoted to be enriched on the inner wall of the lower part of the separation cylinder, the precipitates are downwards collected by virtue of gravity, and compared with the prior art, the separation and dephosphorization efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to an efficient phosphorus removal device. Background Art

[0002] A large amount of phosphorus-containing wastewater discharged into water bodies such as rivers and lakes will cause the problem of water eutrophication. Total phosphorus is still one of the more difficult indicators to control in sewage treatment, and relying solely on natural biological treatment cannot meet the increasingly strict effluent discharge standards, which directly leads to water pollution problems caused by excessive phosphorus.

[0003] In the prior art, the utility model patent with the publication number CN214734749U, a sludge-water separation device for synchronous phosphorus removal, and the utility model patent with the publication number CN214880461U, a sludge-water separation device for synchronous phosphorus removal, adsorb phosphorus in the wastewater by adding a phosphorus removal agent and then precipitate and separate to achieve phosphorus removal. However, the efficiency of separating and removing phosphorus by the natural flow of wastewater through the sludge-water separation tank needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above problems in the prior art and provide an efficient phosphorus removal device.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An efficient phosphorus removal device includes a separation cylinder and a medicine adding pipe. The upper and lower parts of the separation cylinder are in the shapes of a circular cylinder and an inverted conical cylinder respectively; one side of the upper part of the separation cylinder is connected with a water inlet pipe for supplying sewage, and the medicine adding pipe adds a phosphorus removal agent to the water inlet pipe; the end of the water inlet pipe close to the separation cylinder is tangent to the inner wall of the upper part of the separation cylinder; it further includes an inner cylinder, which is arranged inside the separation cylinder and extends from the upper end of the separation cylinder to the lower part of the separation cylinder. The upper part of the inner cylinder is connected with a water outlet pipe, and the water outlet pipe passes through the side wall of the separation cylinder and extends to the outside of the separation cylinder.

[0007] Further, a sewage discharge valve is provided at the lower end of the separation cylinder.

[0008] Further, there is an annular gap between the inner cylinder and the separation cylinder, and several radial support rods are connected between the outer side of the inner cylinder and the inner side of the separation cylinder.

[0009] Further, a filter screen is provided on the inner side of the upper part of the inner cylinder, and the filter screen is located below the water outlet pipe.

[0010] Further, the lower end of the inner cylinder is connected with a supplementary medicine pipe for supplying the phosphorus removal agent, and the supplementary medicine pipe passes through the side wall of the separation cylinder and extends to the outside of the separation cylinder.

[0011] Further, several layers of partition plates are provided at the lower part of the inner cylinder, and there is a gap between one side of the partition plate and the inner wall of the inner cylinder.

[0012] Further, a number of vertical leveling bolts are connected to the upper end of the separation cylinder by means of threads.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, the waste water and the phosphorus removal agent entering the separation cylinder are tangent to the separation cylinder through the water inlet pipe and make a rotational movement through the water outlet structure of the central inner cylinder, generating a centrifugal force, which can promote the precipitation to enrich and separate on the inner wall of the lower part of the separation cylinder. With the help of gravity, the precipitation is collected downward, and the separation and phosphorus removal efficiency can be improved compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an external three-dimensional structure schematic diagram of the present utility model.

[0016] Figure 2 is an external side view structure schematic diagram of the present utility model.

[0017] Figure 3 is an external top view structure schematic diagram of the present utility model.

[0018] Figure 4 is an internal three-dimensional structure schematic diagram of the present utility model.

[0019] In the figure: 1, separation cylinder; 2, inner cylinder; 3, water inlet pipe; 4, chemical adding pipe; 5, water outlet pipe; 6, support rod; 7, filter screen; 8, medicine supplementing pipe; 9, partition board; 10, sewage discharge valve; 11, leveling bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.

[0021] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the term "provided with" that may appear should be understood in a broad sense. For example, the object of "provided with" can be a part of the body, or it can be arranged separately from the body and connected to the body. This connection can be a detachable connection or a non-detachable connection. For those skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The following further describes the present utility model in detail with reference to embodiments.

[0024] Specific embodiments of the high-efficiency phosphorus removal equipment provided by the present utility model:

[0025] Please refer to Figures 1-4 , the high-efficiency phosphorus removal equipment includes a separation cylinder 1 and a chemical addition pipe 4. The upper and lower parts of the separation cylinder 1 are in the shape of a circular cylinder and an inverted conical cylinder respectively; the upper end of the separation cylinder 1 is horizontally bent outward to form an annular bent part. A plurality of vertical leveling bolts 11 are connected to the bent part at the upper end of the separation cylinder 1 by threads. The leveling bolts 11 are evenly distributed in a circle. A limit nut is connected to the outside of the leveling bolts 11 by threads. The separation cylinder 1 is supported by the leveling bolts 11, and the horizontality of the separation cylinder 1 during installation can be ensured by adjusting the leveling bolts 11.

[0026] One side of the upper part of the separation cylinder 1 is connected with a water inlet pipe 3 for supplying sewage, and the chemical addition pipe 4 adds a phosphorus removal agent to the water inlet pipe 3; the phosphorus removal agent can be a magnetic phosphorus removal agent, specifically a magnetic phosphorus removal agent containing magnetite. The phosphorus removal agent can improve the chelation and flocculation efficiency, significantly increase the specific gravity of the flocs, and has a strong adsorption effect. It can efficiently adsorb the organic phosphorus in the wastewater and quickly flocculate and precipitate with the help of gravity and magnetic adsorption.

[0027] One end of the water inlet pipe 3 close to the separation cylinder 1 is tangent to the inner wall of the upper part of the separation cylinder 1; an inner cylinder 2 is provided inside the separation cylinder 1. The inner cylinder 2 is arranged inside the separation cylinder 1 and extends from the upper end of the separation cylinder 1 to the lower end of the separation cylinder 1. An outlet pipe 5 is connected to the upper part of the inner cylinder 2, and the outlet pipe 5 passes through the side wall of the separation cylinder 1 and extends outside the separation cylinder 1; there is an annular gap between the inner cylinder 2 and the separation cylinder 1, and a plurality of radial support rods 6 are connected between the outer sides of the upper end and the lower end of the inner cylinder 2 and the inner side of the separation cylinder 1.

[0028] The wastewater carrying the phosphorus removal agent enters the separation cylinder 1 in the tangential direction of the separation cylinder 1, forms a rotating effect in the middle and lower part of the separation cylinder 1, and then generates a centrifugal force, so that the flocculation precipitate can be separated from the water faster and more fully. The precipitate accumulates on the inner wall of the lower part of the separation cylinder 1 and is collected at the lower end of the separation cylinder 1 under the action of gravity. The wastewater after precipitate separation enters the inner cylinder 2 from the lower end of the inner cylinder 2 and is discharged through the outlet pipe 5 by overflowing upward.

[0029] A sewage discharge valve 10 is provided at the lower end of the separation cylinder 1. When a certain amount of sediment is collected, the sewage discharge valve 10 is opened to clean the sediment collected at the lower end of the separation cylinder 1.

[0030] A filter screen 7 is provided on the inner side of the upper part of the inner cylinder 2. The filter screen 7 is located below the water outlet pipe 5; the wastewater without sediment passes through the filter screen 7 and then overflows to the water outlet pipe 5.

[0031] In order to improve the sufficiency of phosphorus removal, a chemical replenishing pipe 8 for supplying a phosphorus removal agent is connected to the lower end of the inner cylinder 2. The chemical replenishing pipe 8 passes through the side wall of the separation cylinder 1 and extends outside the separation cylinder 1; the phosphorus removal agent enters the lower end of the inner cylinder 2 through the chemical replenishing pipe 8, adsorbs the residual organic phosphorus in the wastewater that has not been adsorbed cleanly, and forms a large-specific-gravity flocculent precipitate that falls. Specifically, the chemical replenishing pipe 8 conveys the phosphorus removal agent and clear water, and uses the clear water to bring in the phosphorus removal agent. In some embodiments, the clear water can be replaced by treated wastewater. The chemical replenishing pipe 8 slowly supplies the clear water and the phosphorus removal agent with a certain pressure to the lower end position of the inner cylinder 2. In some embodiments, the chemical replenishing pipe 8 is connected to a water pump to provide pressure by the water pump; in this embodiment, the inner diameter of the water inlet pipe 3 is not greater than one-half of the inner diameter of the inner cylinder 2, so as to avoid the wastewater in the inner cylinder 2 from moving up too fast and enable the sediment to descend at the lower end of the inner cylinder 2.

[0032] A plurality of layers of partition plates 9 are provided on the inner side of the lower part of the inner cylinder 2. There are gaps between one side of each partition plate 9 and the inner wall of the inner cylinder 2, and there are also gaps between different sides of adjacent partition plates 9 and the inner wall of the inner cylinder 2. The multiple layers of partition plates 9 can block the upward movement of the sediment.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still make modifications to the technical solutions recorded in the foregoing embodiments without creative efforts, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An efficient phosphorus removal device, comprising a separation cylinder (1) and a chemical addition pipe (4). The upper and lower parts of the separation cylinder (1) are respectively in the shape of a circular cylinder and an inverted conical cylinder. One side of the upper part of the separation cylinder (1) is connected with a water inlet pipe (3) for supplying sewage, and the chemical addition pipe (4) adds a phosphorus removal agent to the water inlet pipe (3). It is characterized in that: One end of the inlet pipe (3) close to the separation cylinder (1) is tangent to the upper inner wall of the separation cylinder (1); it further includes an inner cylinder (2), the inner cylinder (2) is arranged inside the separation cylinder (1) and extends from the upper end of the separation cylinder (1) to the lower part of the separation cylinder (1), and a water outlet pipe (5) is connected to the upper part of the inner cylinder (2), and the water outlet pipe (5) passes through the side wall of the separation cylinder (1) and extends outside the separation cylinder (1).

2. The high-efficiency phosphorus removal device according to claim 1, characterized in that: A sewage discharge valve (10) is provided at the lower end of the separation cylinder (1).

3. The high-efficiency phosphorus removal device according to claim 1, characterized in that: There is an annular gap between the inner cylinder (2) and the separation cylinder (1), and a number of radial support rods (6) are connected between the outer side of the inner cylinder (2) and the inner side of the separation cylinder (1).

4. The high-efficiency phosphorus removal device according to claim 1, characterized in that: A filter screen (7) is provided on the inner side of the upper part of the inner cylinder (2), and the filter screen (7) is located below the water outlet pipe (5).

5. The high-efficiency phosphorus removal device according to claim 1, characterized in that: A medicine supplement pipe (8) for supplying dephosphorizing agent is connected to the lower end of the inner cylinder (2), and the medicine supplement pipe (8) passes through the side wall of the separation cylinder (1) and extends outside the separation cylinder (1).

6. The high-efficiency phosphorus removal device according to claim 5, wherein: A number of layers of partition plates (9) are provided in the lower part of the inner cylinder (2), and there is a gap between one side of the partition plate (9) and the inner wall of the inner cylinder (2).

7. The high-efficiency phosphorus removal device according to claim 1, wherein: A number of vertical leveling bolts (11) are connected to the upper end of the separation cylinder (1) by threads.

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