Grille for sewage treatment in source water pump station

Abstract

The utility model provides a grid for sewage treatment in a source water pump station, which comprises a grid plate and a base plate, the grid plate is positioned in front of the base plate, the left end and the right end of the grid plate are connected to the corresponding end parts of the base plate through elastic pieces, a plurality of impact columns are arranged on the front side wall of the base plate, and the grid plate can move back and forth and impact on the impact columns. A plurality of water passing holes are formed in the base plate. The grid has the beneficial effects that the grid is simple in structure and easy to produce, and the working time of effectively filtering sewage by the grid can be effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment equipment, in particular to a grille for sewage treatment in a source water pump station. Background Art

[0002] Source water pumping stations are used in water conservancy projects to treat source water, including filtering water. Source water pumping stations treat a large amount of water, and screens are often used for primary filtration during the sewage treatment stage. Since large-sized suspended impurities are likely to exist in sewage, such as inorganic and organic matter in the form of sheets, during the long-term operation of the screen, the suspended impurities are easily attached to the front side of the screen, causing blockage of some of the screen holes, which can easily reduce the sewage treatment efficiency. Utility Model Content

[0003] In view of this, the utility model aims to overcome the deficiencies of the above-mentioned problems in the prior art and proposes a screen for sewage treatment in a source water pump station.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A grating for sewage treatment in a source water pump station comprises a grating plate and a base plate. The grating plate is located in front of the base plate, and both left and right ends of the grating plate are connected to corresponding ends on the base plate through elastic parts. A plurality of impact columns are arranged on the front side wall of the base plate. The grating plate can move forward and backward and impact on the impact columns. A plurality of water holes are opened on the base plate.

[0006] Furthermore, the grille plate is a V-shaped structure and includes inclined portions on left and right sides and a connecting portion in the middle. The inclined portion on each side includes a grille frame and a grid fixed to the inside of the grille frame, and the angle between the connecting portions on both sides is set toward the substrate. The outer edges of the two grille frames are fixed together with the elastic member, and the other end of the elastic member is fixed to the edge of the substrate.

[0007] Furthermore, a plurality of top rods are evenly arranged on the front side of the grid.

[0008] Furthermore, a connecting plate is horizontally fixed at the upper edge of the front side wall of the base plate, a T-shaped limit groove is opened at the bottom of the connecting plate, and the limit groove is sealed at the front end of the connecting plate, a T-shaped limit block is provided at the top of the connecting part, and the limit block is slidably engaged in the limit groove.

[0009] Furthermore, the elastic member is in a relaxed state during the movement of the grid plate along the limiting groove.

[0010] Furthermore, reinforcing rods are provided between the left and right sides of the connecting plate and the base plate.

[0011] Furthermore, the impact posts are distributed at intervals along the vertical direction at the corresponding connection portions on the front side of the substrate.

[0012] Furthermore, the elastic member is an elastic net made of polyurethane.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The sewage treatment grid in the source water pump station described in the utility model connects the grid plate to the front of the base plate through an elastic member. When sewage passes through the front side of the grid plate, the grid plate will hit the impact column of the base plate backwards under the action of the water flow, and the water flow through the grid plate will change in the process when passing through the water holes of the base plate. Under the reaction force of the impact column and the change of the water flow rate, the grid plate will rebound and reset. In this way, during the uninterrupted flow of water, the grid plate will move back and forth, so that the suspended matter on the front side of the grid plate cannot be statically attached to the grid plate, thereby effectively avoiding the grid plate from being blocked by the suspended matter. The grid has a simple structure and is easy to produce, and can effectively extend the working time of the grid to effectively filter sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a grating for sewage treatment in a source water pump station according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the sewage treatment grid in the source water pump station described in an embodiment of the utility model from another perspective.

[0018] Description of reference numerals:

[0019] 1. grating plate; 11. connecting part; 111. limiting block; 12. inclined part; 121. grid; 122. grating frame; 13. top rod; 2. base plate; 21. impact column; 22. water hole; 23. connecting plate; 231. limiting groove; 3. elastic member; 4. reinforcing rod; 5. pressure strip; 6. bolt. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0024] As shown in the figure, a grating for sewage treatment in a source water pump station includes a grating plate 1 and a base plate 2. The grating plate 1 is located in front of the base plate 2, and the left and right ends of the grating plate 1 are connected to the corresponding ends on the base plate 2 through elastic members 3. A plurality of impact columns 21 are provided on the front side wall of the base plate 2. The grating plate 1 can move forward and backward and impact on the impact columns 21. A plurality of water holes 22 are opened on the base plate 2. In this embodiment, the grille plate 1 is connected to the front of the base plate 2 through an elastic member 3. When sewage passes through the front side of the grille plate 1, the grille plate 1 will collide backwards onto the impact column 21 of the base plate 2 under the action of the water flow, and the water flow through the grille plate 1 will change in the process when passing through the water hole 22 of the base plate 2. Under the reaction force of the impact column 21 and the change in the flow rate of the water flow, the grille plate 1 will rebound and reset. In this way, during the uninterrupted flow of the water flow, the grille plate 1 will move back and forth, so that the suspended matter located on the front side of the grille plate 1 cannot be statically attached to the grille plate 1, thereby effectively avoiding the grille plate 1 from being blocked by the suspended matter.

[0025] The grille plate 1 is a V-shaped structure, and includes inclined portions 12 on the left and right sides and a connecting portion 11 in the middle. Each inclined portion 12 includes a grille frame 122 and a grid 121 fixed to the inside of the grille frame 122, and the angle between the connecting portions 11 on both sides is set toward the base plate 2. The outer edges of the two grille frames 122 are fixed to the elastic member 3, and the other end of the elastic member 3 is fixed to the edge of the base plate 2. In this embodiment, the grid 121 is composed of grid bars fixed together in a horizontal and vertical staggered manner. The connecting portion 11 and the grille frames 122 on the left and right sides are welded and fixed together, and the grille frames 122 and the grid 121 are welded and fixed together. One end of the elastic member 3 is fixed to the grille frame 122 by a tie, and the other end is fixed to the edge of the base plate 2 by a pressure strip 5 and a bolt 6 or also by a tie.

[0026] A plurality of top rods 13 are evenly arranged on the front side of the grid 121 . In this embodiment, the top rods 13 are welded to the front side of the grid 121 . The top rods 13 can block large-sized suspended matter in the sewage to prevent the suspended matter from directly adhering to the grid 121 .

[0027] A connecting plate 23 is horizontally fixed to the upper edge of the front side wall of the base plate 2, a T-shaped limiting groove 231 is provided at the bottom of the connecting plate 23, and the limiting groove 231 is sealed at the front end of the connecting plate 23, a T-shaped limiting block 111 is provided at the top of the connecting portion 11, and the limiting block 111 is slidably engaged in the limiting groove 231. In this embodiment, through the cooperation of the limiting block 111 and the limiting groove 231, it is ensured that the grille plate 1 only moves back and forth along the direction of the limiting groove 231, thereby ensuring that the impact column 21 can impact the connecting portion 11. In this embodiment, the connecting plate 23 is arranged on the upper side of the base plate 2, so that the limiting groove 231 is opened downward and cooperates with the limiting block 111, which can effectively prevent impurities in the sewage from clogging the limiting groove 231; if the connecting plate 23 is arranged on the lower side of the base plate 2, the limiting groove 231 is opened upward, and the limiting block 111 is arranged at the bottom end of the connecting part 11, then impurities in the sewage are easily deposited in the limiting groove 231, and the limiting groove 231 is easily blocked due to long-term use, which is not conducive to the movement of the connecting part 11.

[0028] The elastic member 3 is in a relaxed state when the grid plate 1 moves along the limiting groove 231 , that is, when the limiting block 111 is at any position in the limiting groove 231 , the elastic member 3 is in a relaxed state to avoid affecting the movement of the grid plate 1 .

[0029] Reinforcement rods 4 are provided between the left and right sides of the connection plate 23 and the base plate 2 to increase the strength of the connection plate 23 .

[0030] The impact pillars 21 are distributed at intervals along the vertical direction at the front side of the substrate 2 corresponding to the connecting portion 11 .

[0031] The elastic member 3 is an elastic net or elastic sheet made of polyurethane.

[0032] The water hole 22 is a strip-shaped hole.

[0033] The working process of this embodiment is as follows:

[0034] The grille is vertically installed in the sewage treatment tank, and the two side walls thereof abut against the two side walls of the sewage treatment tank. The V-shaped grid plate 1 is connected to the front of the base plate 2 through an elastic member 3. When sewage passes through the front side of the grid plate 1, the grid plate 1 will hit the impact column 21 of the base plate 2 backward under the action of the water flow, and the water flow through the grid plate 1 will change in the process when passing through the water hole 22 of the base plate 2. Under the reaction force of the impact column 21 and the change in the flow rate of the water flow, the grid plate 1 will rebound and reset. During the rebound process of the grid plate 1, since the grid plate 1 is opposite to the direction of the water flow and the front side of the grid plate 1 is a V-shaped surface, in the process of uninterrupted flow of water, the grid plate 1 will move back and forth, so that the suspended matter on the front side of the grid plate 1 cannot be statically attached to the grid plate 1, thereby effectively avoiding the grid plate 1 from being blocked by the suspended matter. At the same time, the top rod 13 set on the front side of the grid plate 1 can prevent large-sized suspended matter from directly attaching to the surface of the grid plate 1, that is, it is ensured that the grid 121 on the grid plate 1 is not easily blocked, thereby ensuring that the sewage can flow smoothly through the grid.

[0035] Although in the present embodiment, the grid plate 1 moves forward and backward in front of the base plate 2, and there is a gap between the bottom of the grid plate 1 and the bottom of the base plate 2, the sewage is stirred during the forward and backward movement of the grid plate 1. At this time, the suspended matter in the water usually does not sink to the bottom, that is, the probability of the suspended matter entering the rear side of the grid plate 1 from the bottom of the grid plate 1 is very small, so the influence of this situation on the sewage filtering effect is ignored.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen for sewage treatment in a source water pump station, characterized in that: It includes a grille plate and a base plate. The grille plate is located in front of the base plate, and the left and right ends of the grille plate are connected to the corresponding ends on the base plate through elastic parts. A plurality of impact columns are arranged on the front side wall of the base plate. The grille plate can move forward and backward and impact on the impact columns. A plurality of water holes are opened on the base plate.

2. The sewage treatment grid in a source water pump station according to claim 1, characterized in that: The grille plate is a V-shaped structure and includes inclined portions on left and right sides and a connecting portion in the middle. The inclined portion on each side includes a grille frame and a grid fixed to the inside of the grille frame, and the angle between the connecting portions on both sides is set toward the base plate. The outer edges of the two grille frames are fixed together with the elastic member, and the other end of the elastic member is fixed to the edge of the base plate.

3. The sewage treatment grid in a source water pump station according to claim 2, characterized in that: A plurality of top rods are evenly arranged on the front side of the grid.

4. The sewage treatment grid in a source water pump station according to claim 2, characterized in that: A connecting plate is horizontally fixed at the upper edge of the front side wall of the base plate, a T-shaped limit groove is opened at the bottom of the connecting plate, and the limit groove is sealed at the front end of the connecting plate, a T-shaped limit block is provided at the top of the connecting part, and the limit block is slidably engaged in the limit groove.

5. The sewage treatment grid in a source water pump station according to claim 4, characterized in that: The elastic member is in a relaxed state during the movement of the grid plate along the limiting groove.

6. The sewage treatment grid in a source water pump station according to claim 4, characterized in that: Reinforcement rods are arranged between the left and right sides of the connecting plate and the base plate.

7. The sewage treatment grid in a source water pump station according to claim 2, characterized in that: The impact pillars are distributed at intervals along the vertical direction at the corresponding connecting parts on the front side of the substrate.

8. The sewage treatment grid in a source water pump station according to claim 1, characterized in that: The elastic member is an elastic net made of polyurethane.

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