Movable broken line telescopic corridor grid and corridor type flocculation basin

Abstract

The invention discloses a movable fold line telescopic corridor grid and a corridor type flocculation basin, the corridor grid comprises a foundation support and a fold line type grid mechanism which are arranged on a flocculation basin corridor, the fold line type grid mechanism comprises at least two grid plates, the grid plates are connected end to end through hinge structures to form a grid group with a broken line structure; the grid group is fixed in a framework of the basic bracket by utilizing a lifting adjusting mechanism; by changing the opening angle of the grid group, the purpose of adjusting the contact area of the grid plate and water flow is achieved, so that when a relatively large flow field change occurs in the flocculation basin body, better adaptive adjustment can be carried out, and powerful technical support is provided for finally improving the flocculation efficiency and the flocculation effect of the flocculation basin; therefore, the movable fold line telescopic gallery grid disclosed by the invention can effectively solve the problem of poor treatment effect caused by incapability of effectively adapting to large change of water volume in the tank in the gallery grid of the existing partition plate flocculation tank.

Description

Technical Field

[0001] The present disclosure relates to the technical field of water treatment, and in particular to a baffle or grid arranged in a flocculation tank gallery. Background Art

[0002] Commonly used flocculation tanks for water treatment include baffle, folded plate, grid (bar), and mechanical types. Baffle flocculation tanks are widely used in large water plants. However, due to large fluctuations in water volume during daily use, baffle spacing is often fixed and cannot be adjusted. This can cause hydraulic parameters such as velocity gradient and reaction time within the tank to deviate significantly from their designed values, resulting in poor flocculation performance and consequently, negatively impacting water quality.

[0003] At present, one of the methods to improve the traditional baffle flocculation tank is to add grids in the corridor. In order to improve the flocculation effect of the baffle flocculation tank, the baffles, grids or bars added in the corridor are used as flow disturbance devices. The different designs of the mesh (hole) size, spacing, and number of mesh plates (baffles) will have a certain degree of impact on the flow field in the tank. Once the design parameters are fixed, the flocculation effect will still decrease when facing a large flow change again. The grid is difficult to install and disassemble. More importantly, the installed grid cannot be dynamically adjusted, so it cannot completely solve the shortcomings of the baffle flocculation tank such as poor adaptability and poor efficiency. Summary of the Invention

[0004] In view of this, the present disclosure provides a movable folded-line telescopic corridor grid and a corridor-type flocculation tank to solve the problem that the corridor grid of the current baffle flocculation tank cannot effectively adapt to the large changes in water volume in the tank, resulting in poor treatment effect.

[0005] To achieve the above-mentioned object of the invention, in a first aspect, the movable folding line telescopic corridor grid disclosed in the present invention comprises: The basic support and broken line grid structure arranged on the corridor of the flocculation tank, The fold-line grid structure comprises at least two grid plates, which are connected end to end via a hinge structure to form a grid group of fold-line structure; The grid group is fixed in the frame of the basic support by using a lifting and adjusting mechanism.

[0006] In the present disclosure and possible embodiments, the number of the grid plates in each grid group is 3 to 10.

[0007] In the present disclosure and possible embodiments, the hinge structure includes a hinge.

[0008] In the present disclosure and possible embodiments, the hinge is a spring hinge.

[0009] In the present disclosure and possible embodiments, the hinge is a two-fold structure, and the opening ends of the two hinges are controlled by elastic members to control the opening angle range of the hinge.

[0010] In the present disclosure and possible embodiments, the elastic member includes a spring, a latex ring, an elastic rope and an elastic band.

[0011] In the present disclosure and possible embodiments, the opening angle of the hinge ranges from 30° to 60°.

[0012] In the present disclosure and possible embodiments, the lifting and adjusting mechanism includes: A screw-nut pair is composed of a screw and a nut, wherein the screw is connected to the upper end of the grid group, and the nut is connected to the upper crossbeam of the basic support.

[0013] In the present disclosure and possible embodiments, at least one grid group is arranged on the basic support along the direction of gallery liquid flow.

[0014] In the present disclosure and possible embodiments, the basic support is configured with a width adjustment structure, and the width of the grid group is configured corresponding to the width of the basic support.

[0015] In a second aspect, the present disclosure provides a gallery-type flocculation tank, comprising: The movable fold-line telescopic corridor grid described in the first aspect.

[0016] The present invention has the beneficial effects: The movable folded-line telescopic corridor grid disclosed in the present invention fixes the folded-line grid through a basic bracket. On the one hand, the basic bracket can be placed in the corridor at any time and can also be removed from the corridor at any time, thereby enhancing the flexibility and convenience of use and eliminating the installation and disassembly steps; on the other hand, because the grid group used for flow disturbance adopts a folded-line structure and is fixed to the basic bracket by a lifting and adjusting mechanism, the opening angle of the grid group is changed by adjusting the lifting and adjusting mechanism to achieve the purpose of adjusting the contact area between the grid plate and the water flow, so that when a large flow field change occurs in the flocculation tank, better adaptive dynamic adjustment can be performed, that is, different degrees of flow disturbance are provided in a targeted manner, providing strong technical support for ultimately improving the flocculation efficiency and flocculation effect of the flocculation tank; therefore, the movable folded-line telescopic corridor grid disclosed in the present invention can effectively solve the problem that the corridor grid of the current baffle flocculation tank cannot effectively adapt to the large changes in water volume in the tank, resulting in poor treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which: Figure 1is a structural schematic diagram of a movable folding line telescopic corridor grid according to an embodiment of the present disclosure; Figure 2 It is the width adjustment structure of the basic bracket of the embodiment of the present disclosure; Figure 3 This is a diagram of the hinge connection structure between the grid panels of the embodiment of the present disclosure. DETAILED DESCRIPTION

[0018] The present disclosure is described below based on specific embodiments, but it is worth noting that the present disclosure is not limited to these specific embodiments. In the detailed description of the present disclosure below, some specific details are described in detail. However, for the parts not described in detail, those skilled in the art can also fully understand the present disclosure.

[0019] In addition, those skilled in the art should understand that the drawings provided are only for the purpose of illustrating the purpose, features and advantages of the present disclosure and are not drawn to scale. In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting this application.

[0020] At the same time, unless the context clearly requires otherwise, words such as "include", "comprising" and the like throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, as "including but not limited to".

[0021] In order to solve the problem that the corridor grid of the current baffle flocculation tank cannot effectively adapt to the large changes in water volume in the tank, resulting in poor treatment effect, the present disclosure provides a movable folded-line telescopic corridor grid. The design concept of the movable folded-line telescopic corridor grid technical solution is as follows: a movable grid plate bracket is configured at the corridor of the flocculation tank, so that the basic bracket can be placed in the corridor at any time and can also be removed from the corridor at any time. This non-fixed configuration method can enhance the flexibility and convenience of use and also eliminate the installation and disassembly process; then a folded-line grid group composed of a plurality of grid plates is configured on the basic bracket, and the folded-line grid group is fixed to the basic bracket using a lifting and adjusting mechanism. In this way, the height of the grid group is changed by the lifting and adjusting mechanism, and then the opening angle of the grid group is changed, so as to achieve the purpose of adjusting the contact area between the grid plate and the water flow at any time. Correspondingly, when a large flow field change occurs in the flocculation tank body, the folded-line grid group as a flow disturbance device can make better adaptive adjustments to ensure the flocculation efficiency and flocculation effect of the flocculation tank.

[0022] In order to realize the technical concept of the present invention, Figure 1 A specific technical solution is given, based on the embodiment of the technical solution, combined with Figure 1 As shown: the movable folded-line telescopic corridor grid described in this embodiment includes a basic support and a folded-line grid mechanism installed on the basic support; the folded-line grid mechanism includes a grid group consisting of at least two grid plates 4, and on the basic support, multiple grid groups can be configured along the direction of corridor liquid flow, and the number of grid plates 4 in each grid group is preferably 3 to 10; in each grid group, the grid plates 4 are connected end to end through a hinge structure, thereby forming the foldable structure.

[0023] exist Figure 1 The lifting and lowering mechanism of this embodiment is a screw-nut pair consisting of a screw 2 and a nut 3. The screw 2 is connected to the upper end of the grid group, and the nut 3 is connected to the upper crossbeam of the base support. To facilitate lifting and lowering, a handwheel 1 is provided at the upper end of the screw 2.

[0024] exist Figure 1 In the embodiment, the hinge structure adopts a hinge 5, and preferably the hinge 5 is a spring hinge. By selecting the spring material, shape and parameters of the spring hinge, different elastic energies are provided to control the opening angles between the connected grid plates of the mutual fold lines; preferably, the opening angle range of the hinge is controlled between 30° and 60°.

[0025] The hinge structure of this embodiment may also choose to adopt a two-fold structure hinge 5, and control the opening angle range of the hinge 5 through elastic parts at the open ends of the two folds, and the opening angle range of the hinge 5 corresponds to the angle between the grid plates in the grid group; the elastic part of this embodiment may be a spring, a latex rubber ring, an elastic rope or an elastic band.

[0026] In this embodiment, the opening and closing degree of the angle between the grid pieces can be changed by adjusting the spring hinge or the elastic member between the two hinges. Obviously, the change in the opening and closing degree of the angle between the grid pieces can also cause the flow area of ​​the mesh holes on the grid plate 4 to change at the same time. Therefore, when the flow field in the flocculation tank changes, a corresponding turbulence effect can be generated to provide different degrees of turbulence.

[0027] exist Figure 1 In combination Figure 2 As shown, the base bracket of this embodiment is also equipped with a width adjustment structure, which can be a fixing bolt 6. Then, by changing the different positioning positions of the fixing bolt 6, the width of the base bracket can be adjusted to adapt to the use of corridors of different widths. At the same time, the width of the grid plate 4 is configured corresponding to the width of the base bracket.

[0028] When in use, the basic bracket can be adjusted to a suitable width according to the width of the corridor through the fixing bolts 6 and placed in the corridor. The handwheel 1 and the screw rod 2 are connected together, and then the nut 3 on the basic bracket is clamped; when the handwheel 1 is turned, the screw rod 2 rotates synchronously to drive the grid group to rise or fall, and further drives the grid plate 4 connected to it through the hinge 5 until the opening and closing degree between the grid plates reaches the design parameters.

[0029] Furthermore, the movable folding-line telescopic corridor grid of the present invention was specifically applied in the corridor-type flocculation tank of the Donghu Water Plant to test its actual use effect. The specific process is as follows: The flow rate of a single pool of a corridor-type flocculation tank is 10,000 to 100,000 m 3 / d, flocculation time is 10-30min, and the effective volume of the flocculation tank is 50-500m 3 , single pool area 4~40m 2 The flow velocity in the vertical shaft is 0.1~0.3m / s, and the flow velocity through the mesh is 0.01~0.2m / s.

[0030] Corresponding to the corridor-type flocculation tank, a movable zigzag telescopic corridor grid is designed. A zigzag grid mechanism is configured on the basic bracket. Five grid groups are designed, with a total of 50 grid plates 4. Each grid group consists of 10 grid plates, which are arranged 1 to 10 from top to bottom.

[0031] The foundation support is designed to match the corridor specifications of the flocculation tank. The main structure is welded from 50×50mm 20# square steel. The upper end of the first grid plate in each grid group is welded to the upper crossbar of the foundation support. A lead screw 2 is welded perpendicularly to the center of the upper crossbar. A handwheel 1 is welded to the other end of the lead screw 2. A matching nut 3 is inserted through the middle of the lead screw 2 and fixedly welded to the foundation support.

[0032] The grid plates of each grid group are connected end to end by hinges 5, thereby forming a spoiler grid with a foldable structure.

[0033] In this application, combined with Figure 3 As shown, a two-fold structure hinge 5 is adopted, and a latex rubber ring is configured at the open end of the two hinges to control the opening angle range of the hinge 5. Specifically, three silicone rubber bands with a diameter of 32 mm are used to connect one end of the hinge 5 between adjacent grid plates. The three rubber bands are evenly distributed along the side length of the grid plate 4, and the tensile strength of a single rubber band is between 5 and 10 MPa; the bottom of the last grid plate 4 of each grid group is connected to the bottom of the base bracket through the hinge 5.

[0034] Handwheel 1 is used to control the rise and fall of screw 2, with a designed vertical displacement range of 0 to 80 cm. The rise and fall of screw 2 stretches the rubber band, thereby changing the angle between the mesh panels and the flow area of ​​the mesh, thereby adjusting the degree of turbulence.

[0035] Through the application of the movable folding line telescopic corridor grid of the present invention, compared with the existing process of the traditional corridor-type flocculation tank of the Donghu Water Plant, more than 10% of chemicals are saved and the turbidity of the flocculation effluent is reduced by more than 10%.

[0036] It can be seen from the description of this embodiment and the experimental data of the application example that by adding the movable folded-line telescopic grid of the present invention to the water treatment process, a vortex flow field adapted to different flow rates can be created by adjusting the angle opening between the grid plates under different water volumes and water qualities, thereby improving the flocculation efficiency, enhancing the flocculation effect, and reducing the operating costs.

[0037] The above-described embodiments are merely examples of implementation methods of the present disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications, equivalent substitutions, and improvements without departing from the scope of the present disclosure, and these modifications are all within the scope of protection of the present disclosure. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. A movable folding line telescopic corridor grid, characterized in that: include: The basic support and broken line grid structure arranged on the corridor of the flocculation tank, The fold-line grid structure comprises at least two grid plates, which are connected end to end via a hinge structure to form a grid group of fold-line structure; The grid group is fixed in the frame of the basic support by using a lifting and adjusting mechanism.

2. The movable folding line telescopic corridor grid according to claim 1, characterized in that: The number of grid plates in the grid group is 3 to 10.

3. The movable folding line telescopic corridor grid according to claim 1 or 2, characterized in that: The hinge structure adopts a hinge.

4. The movable folding line telescopic corridor grid according to claim 3, characterized in that: The hinge is a spring hinge or a two-fold structure hinge; The two-fold structure hinge has an opening angle range controlled by elastic members at the opening ends of the two hinges.

5. The movable folding line telescopic corridor grid according to claim 4, characterized in that: The elastic parts include springs, latex rings, elastic ropes and elastic bands.

6. The movable folding line telescopic corridor grid according to claim 1, 2, 4 or 5, characterized in that: The lifting and adjusting mechanism comprises: A screw-nut pair is composed of a screw and a nut, wherein the screw is connected to the upper end of the grid group, and the nut is connected to the upper crossbeam of the basic support.

7. The movable folding line telescopic corridor grid according to claim 6, characterized in that: The opening angle of the hinge ranges from 30° to 60°.

8. The movable folding line telescopic corridor grid according to claim 7, characterized in that: On the basic support, at least one grid group is arranged along the direction of liquid flow in the gallery.

9. The movable folding line telescopic corridor grid according to claim 8, characterized in that: The basic support is configured with a width adjustment structure, and the width of the grid plate is configured corresponding to the width of the basic support.

10. A corridor-type flocculation tank, characterized in that: include: The movable folding-line telescopic corridor grid according to any one of claims 1 to 9.

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