Circumferential-inlet and circumferential-outlet secondary sedimentation tank water outlet channel safety protection grid

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a peripheral-in peripheral-out secondary sedimentation tank water outlet channel safety protection grating which comprises two isosceles triangle supports, the vertex angle positions of the two isosceles triangle supports are fixedly connected through a first connecting rod, and the base angle positions of the two isosceles triangle supports are fixedly connected through a second connecting rod. Intercepting rods are evenly arranged between the first connecting rod and the second connecting rod at intervals, a filter screen is laid between the bottom edges of the two isosceles triangle supports, the edge of one side of the filter screen is evenly and fixedly connected with the second connecting rod on the side through a first connecting rope, and a supporting rod is horizontally arranged on the outer side of the intercepting rod on the other side of the filter screen; the supporting rod is evenly and fixedly connected with the edge of the filter screen on the side through a second connecting rope, ejector rods are arranged at the two ends of the supporting rod, a top plate is arranged on the upper portion of the side, close to the supporting rod, of the isosceles triangle support, and the upper ends of the ejector rods abut against the top plate.

Description

A type of safety protection grille for the outlet channel of a two-stage sedimentation tank with alternating inflow and outflow. Technical Field

[0001] This utility model relates to the field of sewage treatment technology, specifically to a safety protection grille for the effluent channel of a two-stage sedimentation tank with circumferential inlet and outlet. Background Technology

[0002] In the field of wastewater treatment, the peripheral inlet and outlet secondary sedimentation tank is a common sedimentation tank structure, which achieves efficient solid-liquid separation through peripheral inlet and outlet. The outlet channel, as a key component of the secondary sedimentation tank, plays a crucial role in collecting and guiding the supernatant. However, in actual operation, a small amount of debris still enters the outlet channel, and the outlet channel often suffers from the following problems due to a lack of effective safety protection measures: open outlet channels easily allow debris to enter the outlet, affecting normal water discharge; traditional bar screens are mostly fixed designs, making installation and maintenance inconvenient. Summary of the Invention

[0003] To address the aforementioned technical deficiencies, this utility model provides a safety protection grille for the outlet channel of a circumferentially inlet and outlet sedimentation tank, which can effectively trap debris and is easy to install and maintain.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A safety protection grille for the outlet channel of a circumferential sedimentation tank includes two identical isosceles triangular supports. The two isosceles triangular supports are parallel to each other and each angle corresponds to the other. The apex of the isosceles triangular supports is fixedly connected by a first connecting rod, and the base of the isosceles triangular supports is fixedly connected by a second connecting rod. Interception rods are evenly spaced between the first and second connecting rods. A filter screen is laid between the bases of the two isosceles triangular supports. One edge of the filter screen is evenly fixedly connected to the second connecting rod on that side by a first connecting rope. A support rod is horizontally arranged outside the interception rod on the other side of the filter screen. The support rod is evenly fixedly connected to the edge of the filter screen on that side by a second connecting rope. Top rods are provided at both ends of the support rods. A top plate is provided on the upper part of the isosceles triangular support near the support rod, and the upper end of the top rod rests on the top plate.

[0005] The principle of the above technical solution is as follows: the protective grille is placed at the outlet of the water channel, which is located at the bottom of the channel. The filter screen covers the outlet of the water channel. Larger debris is intercepted by the intercepting rod. Since the intercepting rod between the first and second connecting rods is inclined upward, larger debris will accumulate at the top of the intercepting rod under the impact of the water flow, facilitating the collection of larger debris. The filter screen covers the outlet of the water channel. When the water flows through the filter screen, smaller debris is intercepted by the filter screen. Under the impact of the water flow, the filter screen tightly covers the outlet of the water channel. The protective grille is stably fixed by the first and second connecting ropes. When the protective grille needs to be removed, the top rod is removed from the top plate and lifted upward. The filter screen is pulled up from one side, so that the water flow no longer impacts the filter screen. At this time, the protective grille can be easily lifted for maintenance.

[0006] The spacing between the interception bars is 1 centimeter. This design can intercept larger debris while allowing water to flow smoothly.

[0007] The base angle of the isosceles triangle support is 45°, which is a design that helps debris to accumulate at the top of the interceptor bar under the impact of the water flow.

[0008] The safety protection grille for the outlet channel of a two-stage sedimentation tank with circumferential inlet and outlet obtained by this utility model has the following advantages: it intercepts larger debris by means of an intercepting rod and smaller debris by means of a filter screen. At the same time, the filter screen covers the outlet of the outlet channel and uses the impact of the water flow to fix the protective grille stably. When the protective grille needs to be removed, the top rod is removed from the top plate and lifted upwards. The filter screen is pulled up, so that the water flow no longer impacts the filter screen. At this time, the protective grille can be easily lifted for maintenance. Attached Figure Description

[0009] Figure 1 is a structural schematic diagram of Embodiment 1 of this utility model. Detailed Implementation

[0010] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0011] Example 1:

[0012] As shown in Figure 1, this utility model discloses a safety protection grille for the outlet channel of a circumferentially inlet and outlet sedimentation tank, comprising two identical isosceles triangular supports 2, each with a base angle of 45°. The two isosceles triangular supports 2 are parallel to each other, and each angle corresponds to the other. The apex of the isosceles triangular supports 2 is fixedly connected by a first connecting rod 10, and the base angle is fixedly connected by a second connecting rod 1. Interception rods 7 are evenly spaced between the first connecting rod 10 and the second connecting rod 1. The spacing between the 7 is 1 cm. A filter screen 4 is laid between the bases of the two isosceles triangular supports 2. One edge of the filter screen 4 is evenly fixed to the second connecting rod 1 on the same side by the first connecting rope 3. A support rod 6 is horizontally set on the outside of the intercepting rod 7 on the other side of the filter screen 4. The support rod 6 is evenly fixed to the edge of the filter screen 4 on the same side by the second connecting rope 5. Top rods 8 are set at both ends of the support rod 6. A top plate 9 is set on the upper part of the isosceles triangular support 2 on the side close to the support rod 6. The upper end of the top rod 8 rests on the top plate 9.

[0013] The principle of the above technical solution is as follows: the protective grille is placed at the outlet of the water channel. Larger debris is intercepted by the intercepting rod 7. Since the intercepting rod 7 between the first connecting rod 10 and the second connecting rod 1 is inclined upward, larger debris will gather at the top of the intercepting rod 7 under the impact of the water flow, making it easier to collect larger debris. The filter screen 4 covers the outlet of the water channel, which is located at the bottom of the water channel. When the water flows through the filter screen 4, smaller debris is intercepted by the filter screen 4. Under the impact of the water flow, the filter screen 4 tightly covers the outlet of the water channel. Combined with the first connecting rope 3 and the second connecting rope 5, the protective grille is stably fixed. When the protective grille needs to be removed, the top rod 8 is removed from the top plate 9 and lifted upward. The filter screen 4 is pulled up, so that the water flow no longer impacts the filter screen 4. At this time, the protective grille can be easily lifted for maintenance.

Claims

1. A safety protective grille for the outlet channel of a circumferentially inlet and outlet sedimentation tank, characterized in that, The system includes two identical isosceles triangular supports (2), which are parallel to each other and have corresponding angles. The apex of each isosceles triangular support (2) is fixedly connected by a first connecting rod (10), and the base of each isosceles triangular support (2) is fixedly connected by a second connecting rod (1). Intercepting rods (7) are evenly spaced between the first connecting rod (10) and the second connecting rod (1). A filter screen (4) is laid between the bases of the two isosceles triangular supports (2). One side edge of the mesh (4) is evenly fixed to the second connecting rod (1) on the same side by the first connecting rope (3). A support rod (6) is horizontally set on the outside of the intercepting rod (7) on the other side of the filter mesh (4). The support rod (6) is evenly fixed to the edge of the filter mesh (4) on the same side by the second connecting rope (5). Top rods (8) are set at both ends of the support rod (6). A top plate (9) is set on the upper part of the isosceles triangular bracket (2) near the support rod (6). The upper end of the top rod (8) rests on the top plate (9).

2. The safety protection grille for the outlet channel of a circumferentially inlet and outlet sedimentation tank according to claim 1, characterized in that, The spacing between the interceptor bars (7) is 1 cm.

3. The safety protection grille for the outlet channel of a circumferentially inlet and outlet sedimentation tank according to claim 1 or 2, characterized in that, The base angle of the isosceles triangular support (2) is 45°.

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