Sedimentation tank

Abstract

The sedimentation tank comprises a tank body, a water inlet and a water outlet, graded filtering structures are arranged in the tank body side by side, each graded filtering structure comprises an outer frame, a filter screen and a connecting seat, the filter screens are arranged in the outer frames, the connecting seats are arranged at the bottom of the tank body, and the filter screens are arranged in the outer frames. The connecting seat is connected with the bottom end of the outer frame in a supporting manner, the connecting seat comprises a seat body and a connecting slot, and the seat body is fixed at the bottom of the pool body; a plurality of graded filtering structures are arranged in the tank body, so that the tank body can be divided into a plurality of spaces, and suspended solids with different sizes can be graded and controlled through filtering screens with different pore diameters in the graded filtering structures, so that precipitation measures can be pointedly taken for the suspended solids with different sizes; by means of the design, the sewage sedimentation effect is improved, the sedimentation time is shortened, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and specifically relates to a sedimentation tank. Background Art

[0002] Sewage treatment has always been a very important task in environmental protection. Treating sewage through a sedimentation tank is a common method. The specific steps are to pass a certain amount of sewage into the sedimentation tank, and then add flocculants and other agents to promote the sinking of suspended matter in the sewage, and finally separate the settled sediment from the water body to complete the sedimentation treatment of the sewage.

[0003] Since the suspended solids in sewage vary in size and type, their sedimentation rates are also different. If the traditional sedimentation tank adopts a uniform dosing and static method, it cannot perform targeted sedimentation treatment on suspended solids of different sizes. This will lead to poor sedimentation effect and long sedimentation time, affecting the efficiency of sewage treatment. Therefore, it is necessary to design a new sedimentation tank to solve this problem. Utility Model Content

[0004] The utility model aims to provide a sedimentation tank to solve the problems of poor sedimentation effect and long sedimentation time in the traditional sedimentation tank mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sedimentation tank, comprising a tank body, a water inlet and a drain outlet, wherein a graded filtering structure is arranged side by side inside the tank body, wherein the graded filtering structure comprises an outer frame, a filter screen and a connecting seat, wherein the filter screen is arranged inside the outer frame, wherein the connecting seat is arranged at the bottom of the tank body and is supported and connected to the bottom end of the outer frame, wherein the connecting seat comprises a seat body and a connecting slot, wherein the seat body is fixed at the bottom of the tank body, and the bottom end of the outer frame is inserted into the interior of the connecting slot opened at the top end of the seat body.

[0006] Preferably, the connecting seat further comprises sealing edges, which are symmetrically fixed on both sides of the bottom end of the outer frame and fit with the top surface of the seat body.

[0007] Preferably, the connecting seat further comprises a rubber pad, and the rubber pad is arranged at the bottom end of the connecting slot.

[0008] Preferably, a sewage extraction port is provided on the bottom surface of one side of the pool body located on one side of the graded filtering structure, and the graded filtering structure further includes a slope, which is inclined toward the sewage extraction port.

[0009] Preferably, the graded filtering structure also includes a sliding component, which is arranged between the outer frame and the two sides of the pool body. The sliding component includes side rails, slide grooves, slide bars and side grooves. The side rails are symmetrically fixed on both sides of the inner wall of the pool body, the slide grooves are opened inside the side rails, and the side grooves are opened on the outside of the slide grooves. The slide bar is slidably arranged inside the slide groove, and one end passes through the side groove and is fixedly connected to the two sides of the outer frame.

[0010] Preferably, the sliding assembly further comprises a sealing gasket A, which is fixed to the inner wall of the side groove and is in compression contact with both sides of the sliding bar.

[0011] Preferably, the sliding assembly further comprises a sealing gasket B, which is fixed to one side of the side rail and is in compression contact with the surface of the outer frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By setting up multiple graded filtering structures inside the pool body, it can be divided into multiple spaces. Through the filter screens with different pore sizes inside the multiple graded filtering structures, suspended solids of different sizes can be graded and controlled, and targeted sedimentation measures can be taken for suspended solids of different sizes. This design improves the effect of sewage sedimentation, reduces sedimentation time, and improves the efficiency of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front cross-sectional view of the utility model;

[0015] Figure 2 For this utility model Figure 1 A side cross-sectional view of a medium graded filtration structure;

[0016] Figure 3 For this utility model Figure 2 A side cross-sectional view of the middle connecting seat;

[0017] Figure 4 For this utility model Figure 2 A top sectional view of the middle sliding assembly;

[0018] In the figure: 100, pool body; 200, water inlet; 300, graded filtration structure; 301, outer frame; 302, filter screen; 303, connecting seat; 3031, seat body; 3032, connecting slot; 3033, sealing edge; 3034, rubber pad; 304, sliding assembly; 3041, side rail; 3042, slide groove; 3043, slide bar; 3044, side groove; 3045, sealing pad A; 3046, sealing pad B; 305, slope; 400, sewage extraction port; 500, drainage port. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a sedimentation tank, including a tank body 100, a water inlet 200 and a drain outlet 500, sewage can be introduced from the water inlet 200, and the precipitated water can be discharged from the drain outlet 500, and a plurality of graded filtering structures 300 are arranged side by side inside the tank body 100, which can perform graded filtering and control on suspended matter in sewage, and the graded filtering structure 300 includes an outer frame 301, a filter screen 302 and a connecting seat 303, the filter screen 302 is arranged inside the outer frame 301, and the apertures of the plurality of filter screens 302 gradually decrease from left to right, so that suspended matter can be graded and filtered, and personnel can perform targeted sedimentation operations on the suspended matter filtered out by graded filtering, and the connecting seat 303 is arranged at the bottom of the tank body 100 and connected to the bottom of the outer frame 301. The end support connection supports the outer frame 301, the connecting seat 303 includes a seat body 3031 and a connecting slot 3032, the seat body 3031 is fixed at the bottom of the pool body 100, and the bottom end of the outer frame 301 is inserted into the inside of the connecting slot 3032 opened at the top of the seat body 3031, completing the insertion and positioning connection between the outer frame 301 and the seat body 3031, the connecting seat 303 also includes a sealing edge 3033, the sealing edge 3033 is symmetrically fixed on both sides of the bottom end of the outer frame 301, and fits with the top surface of the seat body 3031, thereby improving the sealing performance and preventing sewage from entering the interior of the connecting slot 3032, the connecting seat 303 also includes a rubber pad 3034, the rubber pad 3034 is arranged at the bottom end of the connecting slot 3032, contacts with the bottom end of the outer frame 301, and plays a protective role.

[0022] In this embodiment, preferably, a sewage extraction port 400 is provided on the bottom surface of one side of the pool body 100, and the graded filtering structure 300 also includes a slope 305, which is inclined toward the sewage extraction port 400. The settled suspended matter passes through the slope 305 and gathers near the sewage extraction port 400, and subsequent personnel can extract the settled suspended matter through the sewage extraction port 400.

[0023] In this embodiment, preferably, the graded filtering structure 300 further includes a sliding assembly 304 to achieve a sliding connection between the outer frame 301 and the pool body 100. The personnel can regularly pull out the outer frame 301 together with the filter screen 302, and then dredge the filter screen 302. The sliding assembly 304 is arranged between the outer frame 301 and the two sides of the pool body 100. The sliding assembly 304 includes a side rail 3041, a slide groove 3042, a slide bar 3043 and a side groove 3044. The side rail 3041 is symmetrically fixed. It is fixed on both sides of the inner wall of the pool body 100, which is compatible with both sides of the outer frame 301. The slide groove 3042 is opened inside the side rail 3041, and the side groove 3044 runs through the outside of the slide groove 3042. The slide bar 3043 is slidably set inside the slide groove 3042, and one end passes through the side groove 3044 and is fixedly connected to both sides of the outer frame 301. The outer frame 301 can be pulled up and the slide bar 3043 can be pulled out from the top of the slide groove 3042 to complete the disassembly of the outer frame 301 together with the filter screen 302.

[0024] In this embodiment, preferably, the sliding component 304 also includes a sealing gasket A3045, which is fixed to the inner wall of the side groove 3044 and is in compression contact with both sides of the slide bar 3043, thereby playing a sealing role and preventing sewage from entering the interior of the slide 3042. The sliding component 304 also includes a sealing gasket B3046, which is fixed to one side of the side rail 3041 and is in compression contact with the surface of the outer frame 301, thereby improving the sealing performance and ensuring the graded filtration effect of suspended matter.

[0025] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sedimentation tank, comprising a tank body (100), a water inlet (200) and a drain outlet (500), characterized in that: The pool body (100) is provided with a graded filtering structure (300) arranged side by side inside. The graded filtering structure (300) comprises an outer frame (301), a filter screen (302) and a connecting seat (303). The filter screen (302) is arranged inside the outer frame (301). The connecting seat (303) is arranged at the bottom of the pool body (100) and is supported and connected to the bottom end of the outer frame (301). The connecting seat (303) comprises a seat body (3031) and a connecting slot (3032). The seat body (3031) is fixed to the bottom of the pool body (100). The bottom end of the outer frame (301) is inserted into the inside of the connecting slot (3032) opened at the top end of the seat body (3031).

2. A sedimentation tank according to claim 1, characterized in that: The connecting seat (303) further comprises a sealing edge (3033), wherein the sealing edge (3033) is symmetrically fixed on both sides of the bottom end of the outer frame (301) and fits with the top surface of the seat body (3031).

3. A sedimentation tank according to claim 1, characterized in that: The connection seat (303) further comprises a rubber pad (3034), and the rubber pad (3034) is arranged at the bottom end of the connection slot (3032).

4. A sedimentation tank according to claim 1, characterized in that: A sewage extraction port (400) is provided on the bottom surface of one side of the pool body (100) and is located on one side of the graded filtering structure (300). The graded filtering structure (300) further comprises a slope (305), and the slope (305) is inclined toward the sewage extraction port (400).

5. A sedimentation tank according to claim 1, characterized in that: The graded filtering structure (300) further comprises a sliding assembly (304), wherein the sliding assembly (304) is arranged between the outer frame (301) and the two sides of the pool body (100), and the sliding assembly (304) comprises a side rail (3041), a slide groove (3042), a slide bar (3043) and a side groove (3044), wherein the side rail (3041) is symmetrically fixed on the two sides of the inner wall of the pool body (100), the slide groove (3042) is arranged inside the side rail (3041), and the side groove (3044) is penetrated and arranged on the outside of the slide groove (3042), and the slide bar (3043) is slidably arranged inside the slide groove (3042), and one end thereof passes through the side groove (3044) and is fixedly connected to the two sides of the outer frame (301).

6. A sedimentation tank according to claim 5, characterized in that: The sliding assembly (304) further comprises a sealing gasket A (3045), wherein the sealing gasket A (3045) is fixed to the inner wall of the side groove (3044) and is in compression contact with two sides of the sliding bar (3043).

7. A sedimentation tank according to claim 6, characterized in that: The sliding assembly (304) further comprises a sealing gasket B (3046), wherein the sealing gasket B (3046) is fixed to one side of the side rail (3041) and is in compression contact with the surface of the outer frame (301).

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