Sewage purification tank body

Abstract

The utility model provides a sewage purification tank body and relates to the technical field of sewage treatment. The device comprises an outer tank, an inner barrel is arranged in the outer tank, a top cover is arranged at the top of the outer tank, the outer tank sequentially comprises a cylindrical barrel well, a circular-truncated-cone-shaped barrel neck and a cylindrical barrel body from top to bottom, the cylindrical barrel well, the circular-truncated-cone-shaped barrel neck and the cylindrical barrel body are coaxial, the inner barrel is arranged in the barrel body, and the top cover is arranged in a wellhead at the top of the barrel well; a water inlet pipeline is arranged on the outer tank, a pipeline is arranged between the outer tank and the inner cylinder, and a water outlet pipeline is arranged on the inner cylinder. The sewage treatment tank contains sewage for pretreatment and main reaction, and the construction of a tank body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and particularly relates to a sewage purification tank body. Background Art

[0002] Rural sewage mainly comes from the daily life and agricultural production activities of rural residents, mainly including domestic sewage, toilet sewage, kitchen sewage, breeding sewage, agricultural production sewage, etc. At present, a small number of villages have the conditions to build centralized sewage treatment facilities, and the sewage in the villages is centrally treated. However, due to economic, geographical location and other reasons, most villages are unable to build centralized sewage treatment facilities, and each household of villagers can only build simple sewage treatment facilities by themselves.

[0003] In the prior art, since sewage needs to be treated in multiple steps, the sewage treatment facilities built by single households of villagers need to dig out multiple tank bodies including septic tanks, catch wells, pretreatment tanks and main reaction tanks underground, which have a large floor area, complex construction and high construction costs. Content of the Utility Model

[0004] The purpose of the utility model is to develop a sewage purification tank body that can hold sewage for pretreatment and main reaction and reduce the construction of tank bodies.

[0005] The utility model is realized through the following technical solutions:

[0006] A sewage purification tank body, comprising:

[0007] An outer tank;

[0008] An inner cylinder, arranged inside the outer tank;

[0009] A top cover, arranged on the top of the outer tank;

[0010] Wherein, the outer tank sequentially includes a coaxial cylindrical barrel well, a frustum-shaped barrel neck and a cylindrical barrel body from top to bottom. The inner cylinder is arranged inside the barrel body, and the top cover is arranged inside the wellhead at the top of the barrel well;

[0011] A water inlet pipeline is arranged on the outer tank, a pipeline is arranged between the outer tank and the inner cylinder, and a water outlet pipeline is arranged on the inner cylinder.

[0012] Optionally, a plurality of reinforcing ribs are arranged on the outer wall of the barrel neck and the lower outer wall of the barrel body, and the reinforcing ribs are annular.

[0013] Optionally, the outer wall of the barrel body has two side columns, and the two side columns are on the same radial direction of the barrel body. The side columns are vertically arranged and are in the shape of a convex cuboid.

[0014] Optionally, fixing rings are respectively arranged on the barrel body on both sides of the bottom of the side column, and lifting lugs are respectively arranged on the barrel body on both sides of the top of the side column.

[0015] Optionally, the top cover is circular and adapted to the wellhead of the shaft well, and has a hollow structure inside. A plurality of strip-shaped grooves are provided on the top of the top cover and arranged along its radial direction. The plurality of strip-shaped grooves are arranged in a circular and equidistant manner around the center of the top cover.

[0016] Optionally, a first reinforcing groove is provided at the center of the bottom surface of the top cover. A plurality of second reinforcing grooves are provided on the bottom surface of the top cover outside the first reinforcing groove. The plurality of second reinforcing grooves are arranged in a circular and equidistant manner around the center of the top cover. A plurality of third reinforcing grooves are provided on the bottom surface of the top cover outside the plurality of second reinforcing grooves. The plurality of third reinforcing grooves are arranged in a circular and equidistant manner around the center of the top cover. The first reinforcing groove, the second reinforcing groove and the third reinforcing groove are all in the shape of an inwardly concave frustum of a cone, and the larger diameter end is located at the bottom surface of the top cover.

[0017] Optionally, the inner cylinder is in the shape of a cylindrical barrel and is coaxially arranged with the barrel body. A circular reinforcing ring is provided on the outer wall in the middle of the inner cylinder. The outer diameters of the inner cylinder and the reinforcing ring are smaller than the inner diameter of the shaft well.

[0018] Optionally, the bottom of the inner cylinder is rotationally snap-connected to the bottom of the barrel body, and the top of the inner cylinder is not higher than the top of the barrel body.

[0019] Optionally, a clamping block is provided at the bottom of the outer wall of the inner cylinder. The clamping block is wedge-shaped in the circumferential direction of the inner cylinder. An inwardly concave circular clamping ring is coaxially provided on the bottom surface of the barrel body. The inner diameter of the clamping ring is not less than the outer diameter of the bottom of the inner cylinder. A clamping groove matching with the clamping block is provided at the corresponding position on the inner wall of the clamping ring. The clamping groove is wedge-shaped in the circumferential direction of the clamping ring and is adapted to the clamping block. A notch for the clamping block to slide into the clamping groove is correspondingly provided on the clamping ring at the starting end of the clamping groove.

[0020] Optionally, the tank body is made of polyethylene material and is manufactured by rotational molding. The thickness of the outer tank is 9 mm, and the thickness of the inner cylinder is 5 mm.

[0021] The beneficial effects of the present utility model are as follows:

[0022] The outer tank of the present utility model is equivalent to a pretreatment tank, and the inner cylinder is equivalent to a main reaction tank. There is no need to build a pretreatment tank and a main reaction tank anymore. The tank body structure is compact, small in volume, small in floor area and light in weight, which is convenient for transportation. It can be directly buried underground or fixedly placed on the ground, greatly reducing the construction cost, and the structure is stable and corrosion-resistant, with a long service life. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 Structural diagram of the present utility model;

[0025] Figure 2 For Figure 1 View in the direction of A-A;

[0026] Figure 3 Structural diagram of the inner cylinder;

[0027] Figure 4 Structural diagram of the top cover.

[0028] Reference numerals: 100, outer tank; 101, barrel body; 102, barrel neck; 103, barrel well; 104, reinforcing rib; 105, side column; 106, snap ring; 200, inner cylinder; 201, reinforcing ring; 300, top cover; 301, strip-shaped groove; 302, first reinforcing groove; 303, second reinforcing groove; 304, third reinforcing groove. Detailed implementation manners

[0029] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, without departing from the spirit or scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0031] The following will detail the embodiments of the present utility model with reference to the drawings.

[0032] Such as Figures 1 to 4As shown in the figure, the utility model discloses a sewage purification tank body, which comprises an outer tank 100, an inner cylinder 200 and a top cover 300 arranged at the top of the outer tank 100. The tank body is made of PE (polyethylene) material and is formed by rotational molding. The thickness of the outer tank 100 is 9 mm, and the thickness of the inner cylinder 200 is 5 mm.

[0033] The outer tank 100 successively includes a coaxial cylindrical barrel well 103, a frustum-shaped barrel neck 102 and a cylindrical barrel body 101 from top to bottom. The outer diameter of the barrel well 103 is smaller than that of the barrel body 101. Correspondingly, the larger-diameter end of the barrel neck 102 is connected to the barrel body 101.

[0034] The top cover 300 is circular and is connected to the wellhead at the top of the barrel well 103. The top cover 300 is used to seal the outer tank 100. The interior of the top cover 300 is a hollow structure. A plurality of strip-shaped grooves 301 are arranged radially on the top of the top cover 300, and the plurality of strip-shaped grooves 301 are arranged in a circular and equally spaced manner around the center of the top cover 300. A first strengthening groove 302 is coaxially arranged at the center of the bottom surface of the top cover 300. A plurality of second strengthening grooves 303 are arranged on the bottom surface of the top cover 300 outside the first strengthening groove 302, and the plurality of second strengthening grooves 303 are arranged in a circular and equally spaced manner around the center of the top cover 300. A plurality of third strengthening grooves 304 are arranged on the bottom surface of the top cover 300 outside the plurality of second strengthening grooves 303, and the plurality of third strengthening grooves 304 are arranged in a circular and equally spaced manner around the center of the top cover 300. The first strengthening groove 302, the second strengthening grooves 303 and the third strengthening grooves 304 are all in the shape of an inwardly concave frustum, and the larger-diameter end is at the bottom surface of the top cover 300. The strip-shaped grooves 301, the first strengthening groove 302, the second strengthening grooves 303 and the third strengthening grooves 304 all play a role in strengthening the structural strength and stability of the top cover 300.

[0035] A plurality of strengthening ribs 104 are arranged on the outer wall of the barrel neck 102 and the lower outer wall of the barrel body 101, and the strengthening ribs 104 are in a circular ring shape.

[0036] The outer wall of the barrel body 101 has two side columns 105. The two side columns 105 are on the same radial line of the barrel body 101. The side columns 105 are vertically arranged and are in the shape of an outwardly convex cuboid. Fixing rings are respectively arranged on the barrel body 101 on both sides of the bottom of the side columns 105, and lifting lugs are respectively arranged on the barrel body 101 on both sides of the top of the side columns 105. Fixing components passing through the fixing rings are buried on the placement surface of the outer tank 100 to fix the outer tank 100, and the outer tank 100 is lifted by the lifting lugs.

[0037] An inwardly concave circular clamping ring 106 is coaxially arranged at the bottom surface of the barrel body 101. The inner diameter of the clamping ring 106 is not less than the outer diameter of the bottom of the inner cylinder 200, so that the bottom of the inner cylinder 200 can be clamped into the clamping ring 106 and the two are clamped. A sewage discharge pipe (not shown in the figure) can be arranged at the bottom of the inner cylinder 200. The sewage discharge pipe passes through the bottom of the outer tank 100 and is communicated with an external sludge pool, and the sludge in the inner cylinder 200 can be discharged regularly through the sewage discharge pipe.

[0038] The inner cylinder 200 is in the shape of a cylindrical barrel. A circular reinforcing ring 201 is provided on the outer wall of the middle part of the inner cylinder 200. The outer diameters of the inner cylinder 200 and the reinforcing ring 201 are smaller than the inner diameter of the barrel well 103, so that the inner cylinder 200 can pass through the barrel well 103 and enter the outer tank 100. After the inner cylinder 200 is installed inside the outer tank 100, the top of the inner cylinder 200 is not higher than the top of the barrel body 101 of the outer tank 100. Two clamping blocks are provided at the bottom of the outer wall of the inner cylinder 200. The clamping blocks are wedge-shaped in the circumferential direction of the inner cylinder 200. Two clamping grooves matching the two clamping blocks are provided at the corresponding positions on the inner wall of the clamping ring 106. The clamping grooves are wedge-shaped in the circumferential direction of the clamping ring 106 and are adapted to the clamping blocks. A notch for the clamping block to slide into the clamping groove is correspondingly provided on the clamping ring 106 at the starting end of the clamping groove. When installing the inner cylinder 200, open the top cover 300, place the inner cylinder 200 into the outer tank 100, align the clamping blocks at the bottom of the outer wall of the inner cylinder 200 with the notches of the clamping grooves. After the bottom of the inner cylinder 200 contacts the bottom of the outer tank 100, rotate the inner cylinder 200 to make the clamping blocks engage with the clamping grooves, so as to realize the fixation of the inner cylinder 200 at the center of the bottom of the outer tank 100. When removing the inner cylinder 200, rotate the inner cylinder 200 in the reverse direction to withdraw the clamping blocks from the clamping grooves of the clamping ring 106. Through the cooperation of the clamping blocks and the clamping grooves, the bottom of the inner cylinder 200 is rotationally snap-connected to the bottom of the outer tank 100.

[0039] A water inlet pipeline is provided on the outer tank 100. A pipeline is provided between the outer tank 100 and the inner cylinder 200. A water outlet pipeline is provided on the inner cylinder 200. The sewage collected by the septic tank flows into the sump by itself. The sewage in the sump is sent into the outer tank 100 through the water inlet pipeline for pretreatment. The sewage pretreated in the outer tank 100 is sent into the inner cylinder 200 through the pipeline, and the sewage is output through the water outlet pipeline after the main reaction in the inner cylinder 200. Suspended packing can be added to the inner cylinder 200. On the one hand, the suspended packing allows sludge microorganisms to attach, thereby locking the sludge, preventing the loss of sludge, and avoiding the sludge being carried out by the impact of water. On the other hand, the suspended packing can also enhance the removal effect of ammonia nitrogen.

[0040] The outer tank 100 of the present utility model is equivalent to a pretreatment tank, and the inner cylinder 200 is equivalent to a main reaction tank. There is no need to build a pretreatment tank and a main reaction tank anymore. The tank body structure is compact, small in volume, small in floor area and light in weight, which is convenient for transportation. It can be directly buried underground or fixedly placed on the ground, greatly reducing the construction cost, and the structure is stable and corrosion-resistant, with a long service life.

[0041] The above embodiments are only the preferred embodiments of the present utility model, and do not limit the technical solutions of the present utility model. As long as the technical solutions that can be realized on the basis of the above embodiments without creative labor shall be regarded as falling within the scope of the patent rights protection of the present utility model.

Claims

1. A sewage purification tank body, characterized in that, Comprising: An outer tank; An inner cylinder, disposed inside the outer tank; A top cover, disposed on the top of the outer tank; Wherein, the outer tank sequentially includes a coaxial cylindrical barrel well, a frustum-shaped barrel neck and a cylindrical barrel body from top to bottom, the inner cylinder is disposed inside the barrel body, and the top cover is disposed inside the wellhead at the top of the barrel well; A water inlet pipeline is provided on the outer tank, a pipeline is provided between the outer tank and the inner cylinder, and a water outlet pipeline is provided on the inner cylinder.

2. The sewage purification tank body according to claim 1, wherein, A plurality of reinforcing ribs are provided on the outer wall of the barrel neck and the lower outer wall of the barrel body, and the reinforcing ribs are in a circular ring shape.

3. The sewage purification tank body according to claim 1, wherein, The outer wall of the barrel body has two side columns, and the two side columns are in the same radial direction of the barrel body. The side columns are vertically arranged and are in the shape of a convex cuboid.

4. The sewage purification tank body according to claim 3, characterized in that, Fixing rings are respectively provided on the barrel body on both sides of the bottom of the side column, and lifting lugs are respectively provided on the barrel body on both sides of the top of the side column.

5. The sewage purification tank body according to claim 1, characterized in that, The top cover is circular and adapted to the wellhead of the barrel well and has a hollow structure inside. A plurality of strip-shaped grooves are provided on the top of the top cover and are arranged at equal intervals in a circle around the center of the top cover.

6. The sewage purification tank body according to claim 5, characterized in that, A first reinforcing groove is provided at the center of the bottom surface of the top cover. A plurality of second reinforcing grooves are provided on the bottom surface of the top cover outside the first reinforcing groove and are arranged at equal intervals in a circle around the center of the top cover. A plurality of third reinforcing grooves are provided on the bottom surface of the top cover outside the plurality of second reinforcing grooves and are arranged at equal intervals in a circle around the center of the top cover. The first reinforcing groove, the second reinforcing groove and the third reinforcing groove are all in the shape of an inwardly concave frustum and the larger diameter end is at the bottom surface of the top cover.

7. The sewage purification tank body according to claim 1, characterized in that, The inner cylinder is in the shape of a cylindrical barrel and is coaxially arranged with the barrel body. A circular reinforcing ring is provided on the outer wall in the middle of the inner cylinder. The outer diameters of the inner cylinder and the reinforcing ring are smaller than the inner diameter of the barrel well.

8. The sewage purification tank body according to claim 7, characterized in that, The bottom of the inner cylinder is rotationally snap-connected to the bottom of the barrel body, and the top of the inner cylinder is not higher than the top of the barrel body.

9. The sewage purification tank body according to claim 8, wherein, A clamping block is provided at the bottom of the outer wall of the inner cylinder. The clamping block is wedge-shaped in the circumferential direction of the inner cylinder. An inwardly concave circular clamping ring is coaxially provided on the bottom surface of the barrel body. The inner diameter of the clamping ring is not less than the outer diameter of the bottom of the inner cylinder. A clamping groove matching with the clamping block is provided at the corresponding position on the inner wall of the clamping ring. The clamping groove is wedge-shaped in the circumferential direction of the clamping ring and is adapted to the clamping block. A notch for the clamping block to slide into the clamping groove is correspondingly provided on the clamping ring at the starting end of the clamping groove.

10. The sewage purification tank body according to any one of claims 1 to 9, characterized in that, The tank body is made of polyethylene material and is manufactured by a rotational molding process. The thickness of the outer tank is 9 mm, and the thickness of the inner cylinder is 5 mm.

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