Reaction tank for solid-liquid separation of sludge

Abstract

The utility model relates to the technical field of sludge treatment equipment, and discloses a reaction tank for solid-liquid separation of sludge, which comprises a reaction mechanism, a stirring mechanism arranged in the reaction mechanism, a quantitative feeding mechanism arranged at the upper end of the reaction mechanism and an online monitoring mechanism arranged at the bottom end of the reaction mechanism, a sludge outlet is formed in the center of the inner bottom wall of the reaction tank. By adopting the design of an intelligent dosing structure, four mounting holes are formed in the bottom of the reaction tank at equal angles and are respectively provided with one on-line monitor, namely a particle size monitor, a charge monitor, an organic matter content monitor and a pH (Potential of Hydrogen) monitor, so that the property parameters of sludge can be monitored on line; the flocculating agent is analyzed and processed by the computer, and then the quantitative feeding mechanism is controlled to carry out adaptive automatic quantitative feeding work, that is, the feeding amount of the flocculating agent is adjusted in real time, so that the optimal flocculation effect is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge treatment equipment, specifically a reaction tank for sludge solid-liquid separation. Background Technology

[0002] There are many types of reaction tanks for sludge solid-liquid separation, including flocculation reaction tanks, which are usually rectangular or circular water tanks equipped with stirring devices. The stirring devices come in various types, such as mechanical agitators and hydraulic mixers, and their purpose is to ensure thorough and uniform mixing of sludge and flocculant, promoting the flocculation reaction.

[0003] The existing reaction tanks for sludge solid-liquid separation still have the following problems when in use: the amount of flocculant is difficult to control precisely, the properties of different batches of sludge may be different, making it difficult to determine the optimal amount of flocculant. If the amount of flocculant is insufficient, the sludge particles will not aggregate well, and if the amount is too much, it will not only increase the cost, but may also cause secondary pollution to the environment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a reaction tank for sludge solid-liquid separation, which solves the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a reaction tank for sludge solid-liquid separation, comprising a reaction mechanism, a stirring mechanism inside the reaction mechanism, a quantitative feeding mechanism at the upper end of the reaction mechanism, and an online monitoring mechanism at the bottom end of the reaction mechanism. The reaction mechanism includes a reaction tank, with a sludge discharge port at the center of the bottom wall of the reaction tank. Four mounting holes are formed at equal angles on the outer side of the bottom wall of the reaction tank. The online monitoring mechanism includes mounting sleeves fixedly installed at the openings of the four mounting holes on the outer bottom wall of the reaction tank. Online monitors are threaded onto the mounting sleeves. The four online monitors are a particle size monitor, a charge monitor, an organic matter content monitor, and a pH monitor. The quantitative feeding mechanism includes a mounting frame positioned directly above the reaction tank. Quantitative feeding valves are fixedly installed at the middle of each of the front and rear ends of the mounting frame, and a feeding mechanism is provided at one end of each of the two quantitative feeding valves.

[0008] As a further embodiment of this utility model: the stirring mechanism includes connecting frames that are symmetrically fixedly connected to both sides of the top of the reaction tank, and the same drive motor is fixedly installed between the two connecting frames. A rotating seat is fixedly connected to the bottom drive end of the drive motor. The rotating seat is located inside the reaction tank, and multiple blades are fixedly connected at equal angles to the middle and upper part of the annular outer wall of the rotating seat.

[0009] As a further embodiment of this utility model: four supports are fixedly connected at equal angles below the annular outer wall of the reaction tank, and multiple scrapers are fixedly connected at equal angles below the annular outer wall of the rotating seat. The bottom ends of the multiple scrapers slide against the inner bottom wall of the reaction tank, and a sealing cap is threaded into the sludge discharge port.

[0010] As a further embodiment of this utility model: the mounting frame is fixedly connected to the top of two connecting frames, the feeding mechanism includes a support frame fixedly connected to the middle of one side of the top of the mounting frame, a storage tank is fixedly installed on the top of the two support frames, a feeding valve is fixedly installed at the inlet of one end of the storage tank, a feeding pump is fixedly installed at the outlet of both ends of the storage tank, and the feeding ports of the two feeding pumps at opposite ends are connected to the feed ports of the corresponding quantitative feeding valves on their respective sides through pipes.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, an intelligent dosing structure design is adopted, which has four installation holes at equal angles at the bottom of the reaction tank. Each hole is equipped with an online monitor, namely a particle size monitor, a charge monitor, an organic matter content monitor, and a pH monitor. These monitors can monitor the property parameters of the sludge online, and after computer analysis and processing, control the quantitative feeding mechanism to perform adaptive automated quantitative feeding, that is, adjust the amount of flocculant added in real time to ensure the best flocculation effect.

[0013] 2. In this utility model, by adopting an improved sludge discharge structure design, a sludge discharge port is opened at the center of the bottom of the reaction tank, and a scraper structure is provided at the sludge discharge port. The scraper can rotate with the rotating seat. Since the bottom end of the scraper slides against the bottom wall of the reaction tank, the sludge is easily and stably discharged at the sludge discharge port. Attached Figure Description

[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0016] Figure 3 This is a perspective view of the reaction mechanism and online monitoring mechanism of this utility model;

[0017] Figure 4 This is a perspective view of the mixing mechanism and the quantitative feeding mechanism of this utility model.

[0018] In the diagram: 1. Reaction mechanism; 2. Stirring mechanism; 3. Quantitative feeding mechanism; 4. Online monitoring mechanism; 11. Reaction tank; 12. Sludge discharge port; 13. Mounting hole; 14. Support; 15. Sealing cover; 21. Connecting frame; 22. Drive motor; 23. Rotating seat; 24. Paddle; 25. Scraper; 31. Mounting frame; 32. Quantitative feeding valve; 33. Support frame; 34. Storage tank; 35. Feed pump; 36. Feeding valve; 41. Mounting sleeve; 42. Online monitor. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4In this embodiment of the present invention, a sludge solid-liquid separation reaction tank includes a reaction mechanism 1, a stirring mechanism 2 inside the reaction mechanism 1, a quantitative feeding mechanism 3 at the upper end of the reaction mechanism 1, and an online monitoring mechanism 4 at the bottom end of the reaction mechanism 1. The reaction mechanism 1 includes a reaction tank 11, a sludge discharge port 12 at the center of the bottom wall of the reaction tank 11, and four mounting holes 13 at equal angles on the outer side of the bottom wall of the reaction tank 11. The online monitoring mechanism 4 includes a mounting sleeve 41 fixedly installed at the opening of the four mounting holes 13 on the outer bottom wall of the reaction tank 11. An online monitor 42 is threaded onto the mounting sleeve 41. The four online monitors 42 are a particle size monitor, a charge monitor, an organic matter content monitor, and an online monitor 42. The pH monitor and the quantitative feeding mechanism 3 include an installation frame 31 located directly above the reaction tank 11. Quantitative feeding valves 32 are fixedly installed at the middle of both ends of the installation frame 31. A feeding mechanism is provided at one end of each of the two quantitative feeding valves 32. The entire structure adopts an intelligent dosing design. Four installation holes 13 are opened at equal angles at the bottom of the reaction tank 11, each housing an online monitor 42. These holes are for particle size, charge, organic matter content, and pH. They can monitor the properties of the sludge online, analyze and process the data via computer, and then control the quantitative feeding mechanism 3 to perform automated quantitative feeding, i.e., adjust the flocculant dosage in real time to ensure optimal flocculation effect.

[0023] The stirring mechanism 2 includes connecting frames 21 that are symmetrically fixed to both sides of the top of the reaction tank 11. The same drive motor 22 is fixedly installed between the two connecting frames 21. A rotating seat 23 is fixedly connected to the bottom drive end of the drive motor 22. The rotating seat 23 is located inside the reaction tank 11. Multiple blades 24 are fixedly connected at equal angles to the middle and upper part of the annular outer wall of the rotating seat 23. The rotating seat 23 can be driven to rotate by the drive motor 22, thereby driving the multiple blades 24 to rotate, so that the sludge and flocculant in the reaction tank 11 are fully mixed and uniform, promoting the flocculation reaction.

[0024] Four supports 14 are fixedly connected at equal angles below the annular outer wall of the reaction tank 11. Multiple scrapers 25 are fixedly connected at equal angles below the annular outer wall of the rotating seat 23. The bottom ends of the multiple scrapers 25 slide against the inner bottom wall of the reaction tank 11. A sealing cap 15 is threaded into the sludge discharge port 12. The whole adopts an improved sludge discharge structure design. The sludge discharge port 12 is opened at the center of the bottom of the reaction tank 11, and a scraper 25 structure is set at the sludge discharge port 12. It can rotate with the rotating seat 23. Since the bottom ends of the scrapers 25 slide against the inner bottom wall of the reaction tank 11, the sludge is easily and stably discharged at the sludge discharge port 12.

[0025] The mounting frame 31 is fixedly connected to the top of the two connecting frames 21. The feeding mechanism includes a support frame 33 fixedly connected to the middle of one side of the top of the mounting frame 31. A storage tank 34 is fixedly installed on the top of the two support frames 33. A feeding valve 36 is fixedly installed at the inlet of one end of the storage tank 34. A feeding pump 35 is fixedly installed at the outlets at both ends of the storage tank 34. The feeding ports of the two feeding pumps 35 at opposite ends are connected to the inlet of the corresponding metering valve 32 through pipes. Flocculant can be added into the storage tank 34 through the feeding valve 36, and the flocculant in the storage tank 34 can be extracted by the two feeding pumps 35 and supplied to the metering valve 32. The metering valve 32 then meterably adds flocculant into the reaction tank 11.

[0026] The working principle of this utility model is as follows: An appropriate amount of sludge to be separated into solid and liquid phases can be added to the reaction tank 11. Due to the overall intelligent dosing structure design, four mounting holes 13 are opened at equal angles at the bottom of the reaction tank 11, each equipped with an online monitor 42, which are particle size monitors, charge monitors, organic matter content monitors, and pH monitors. These monitors can monitor the property parameters of the sludge online. After computer analysis and processing, the quantitative feeding mechanism 3 is controlled to perform adaptive automated quantitative feeding. Flocculant is added to the storage tank 34 through the feeding valve 36 and extracted by two feed pumps 35. The flocculant in the storage tank 34 is supplied to the quantitative feeding valve 32, which quantitatively adds flocculant to the reaction tank 11. The dosage of flocculant is adjusted in real time to ensure the best flocculation effect. The drive motor 22 can drive the rotating seat 23 to rotate, which in turn drives multiple blades 24 to rotate, so that the sludge and flocculant in the reaction tank 11 are fully mixed and uniform, promoting the flocculation reaction. That is, the flocculant will undergo hydrolysis and polymerization reaction in water to produce charged colloidal particles. These colloidal particles can adsorb suspended particles in the sludge. Through charge neutralization, adsorption bridging and other effects, the particles gradually aggregate and grow, realizing solid-liquid separation.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A reaction tank for sludge solid-liquid separation, comprising a reaction mechanism (1); Its features are: The reaction mechanism (1) is equipped with a stirring mechanism (2), a quantitative feeding mechanism (3) is provided at the upper end of the reaction mechanism (1), and an online monitoring mechanism (4) is provided at the bottom end of the reaction mechanism (1). The reaction mechanism (1) includes a reaction tank (11), a sludge discharge port (12) is provided at the center of the bottom wall of the reaction tank (11), and four mounting holes (13) are provided at equal angles on the outer side of the bottom wall of the reaction tank (11). The online monitoring mechanism (4) includes a mounting sleeve (41) fixedly installed at the opening of four mounting holes (13) on the bottom wall of the reaction tank (11), and an online monitor (42) is installed on the inner thread of the mounting sleeve (41). The quantitative feeding mechanism (3) includes an installation frame (31) located directly above the reaction tank (11). A quantitative feeding valve (32) is fixedly installed at the middle of each of the front and rear ends of the installation frame (31), and a feeding mechanism is provided at one end of each of the two quantitative feeding valves (32).

2. The reaction tank for sludge solid-liquid separation according to claim 1, characterized in that: The stirring mechanism (2) includes connecting frames (21) that are symmetrically fixedly connected to both sides of the top of the reaction tank (11), and the same drive motor (22) is fixedly installed between the two connecting frames (21).

3. The reaction tank for sludge solid-liquid separation according to claim 2, characterized in that: The bottom drive end of the drive motor (22) is fixedly connected to a rotating seat (23), which is located inside the reaction tank (11).

4. The reaction tank for sludge solid-liquid separation according to claim 3, characterized in that: Multiple blades (24) are fixedly connected at equal angles to the middle and upper part of the annular outer wall of the rotating seat (23), and multiple scrapers (25) are fixedly connected at equal angles to the lower part of the annular outer wall of the rotating seat (23). The bottom ends of the multiple scrapers (25) slide against the inner bottom wall of the reaction tank (11).

5. The reaction tank for sludge solid-liquid separation according to claim 1, characterized in that: The sludge discharge port (12) is internally threaded with a sealing cap (15), and four supports (14) are fixedly connected at equal angles below the annular outer wall of the reaction tank (11).

6. The reaction tank for sludge solid-liquid separation according to claim 1, characterized in that: The four online monitors (42) are a particle size monitor, a charge monitor, an organic matter content monitor, and a pH monitor.

7. The reaction tank for sludge solid-liquid separation according to claim 1, characterized in that: The mounting frame (31) is fixedly connected to the top of two connecting frames (21). The feeding mechanism includes a support frame (33) fixedly connected to the middle of one side of the top of the mounting frame (31). Storage tanks (34) are fixedly installed on the top of the two support frames (33).

8. A reaction tank for sludge solid-liquid separation according to claim 7, characterized in that: A feeding valve (36) is fixedly installed at the inlet of one end of the storage tank (34), and a feeding pump (35) is fixedly installed at the outlets at both ends of the storage tank (34). The feeding ports of the two feeding pumps (35) are connected to the feed ports of the corresponding quantitative feeding valves (32) through pipes.

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