An unpowered flocculating mixing device

Abstract

The utility model provides a kind of unpowered flocculation mixing device, including shell, water supply pipe and discharge pipe are provided with in the shell communication on shell, input pipe is provided with reaction ring, several injection ports are provided on reaction ring, injection port can inject medicine into water supply pipe;Several baffles are provided in shell, one end of baffle is fixedly connected with shell, baffle and several baffles are cooperated to form baffle chamber between shell, gap is left for sewage to pass between adjacent baffles, two adjacent baffles are misaligned arrangement.This device is easy to operate, simple structure, without continuous stirring equipment, only rely on the flow and direction change of fluid in baffle chamber can realize the effect of efficient flocculation stirring.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment, specifically to a non-powered flocculation mixing device. Background Technology

[0002] With the acceleration of urbanization and the expansion of industrial production, sewage treatment facilities generate a large amount of sludge with high water content during operation. This sludge is bulky, difficult to handle, and may pollute the environment. Flocculation and mixing technology focuses on the front-end of sludge treatment. Before sludge dewatering, flocculants are usually added to the sludge. These flocculants can cause sludge particles to aggregate into larger flocs through charge neutralization, adsorption bridging, and other effects, thereby enhancing the compressibility and dewatering performance of the sludge.

[0003] Patent CN 216445065 U discloses a wastewater treatment device using a flocculation method, comprising a wastewater treatment reactor, a wastewater inlet, a reactor stability support frame, an outlet, a DC stirring motor, a flocculant injection and stirring mechanism, a connecting and fixing rod, a scraping carrier plate, an auxiliary scraping layer, and a dirt filter plate. The flocculant injection and stirring mechanism is equipped with a connecting and fixing rod, and the scraping carrier plate is mounted on the connecting and fixing rod. A centrally fixed main stirring shaft has a flocculant transport chamber inside, and the flocculant transport chamber has a flocculant inlet.

[0004] However, the device still has the following problems:

[0005] 1. Wastewater enters the reactor and requires a long period of stirring with a motor to ensure that the reagents and wastewater are evenly mixed, resulting in a long treatment time.

[0006] 2. During the stirring process, wastewater cannot be discharged or introduced. New wastewater can only be introduced after the wastewater in the current reactor has been treated, which affects the efficiency of wastewater treatment. Utility Model Content

[0007] In order to solve the problems existing in the prior art, a non-powered flocculation mixing device is provided to solve the problems mentioned in the above technical background.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] This utility model proposes a non-powered flocculation mixing device, including a shell, on which a water supply pipe and a discharge pipe are provided, communicating with the interior of the shell. A reaction ring is provided on the input pipe, and a plurality of injection ports are provided on the reaction ring, which can inject drugs into the water supply pipe. A plurality of baffles are provided inside the shell, one end of the baffles is fixedly connected to the shell, and the shell and the plurality of baffles cooperate to form a baffle chamber. A gap is left between adjacent baffles for sewage to pass through, and two adjacent baffles are staggered.

[0010] Preferably, the baffle chamber has multiple layers, and adjacent baffle chambers are connected by pipelines. The water supply pipe is connected to the first layer of baffle chambers, and the discharge pipe is connected to the last layer of baffle chambers.

[0011] Preferably, a drug delivery tube is connected to the outside of the reaction ring, an annular groove is formed inside the reaction ring, the drug delivery tube is connected to the injection port through the annular groove, and flanges are detachably connected to both ends of the reaction ring.

[0012] Preferably, the water supply pipe includes an input pipe and a connecting pipe, and the flanges at both ends of the reaction ring are connected to the input pipe and the connecting pipe, respectively.

[0013] Preferably, the inner diameter of the reaction ring is the same as the inner diameter of the input pipe and the connecting pipe, and the length of the input pipe and the connecting pipe is more than six times the inner diameter.

[0014] Preferably, a distribution groove is provided between the housing and the discharge pipe.

[0015] Preferably, a damping plate is fixed inside the housing, the damping plate is located at the front end of the distribution groove, and the discharge pipe is located at the rear end of the distribution groove.

[0016] Preferably, a first valve is connected to the bottom of the distribution groove, and a second valve is connected to the bottom of the housing.

[0017] Preferably, it also includes a drain pipe, and both the first valve and the second valve are connected to the drain pipe.

[0018] Preferably, the reaction ring has four injection ports.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model is equipped with baffles, and a baffle chamber is formed between several baffles and the shell. The direction of the sewage flow changes continuously in the baffle chamber, forming strong turbulence and eddies, which makes the sludge liquid and flocculant mix more fully and evenly. During the fluid baffle process, the tiny sludge floc particles collide and agglomerate fully under the action of turbulence and eddies, gradually forming larger flocs. The flocs gradually grow larger during the fluid flow, which is more conducive to subsequent sedimentation or separation, and improves the sludge dewatering effect. Compared with the traditional continuous stirring method, it reduces the problem of uneven distribution of agents and poor mixing effect caused by insufficient stirring, and improves the flocculation efficiency.

[0021] 2. The baffle plate of this utility model has a simple installation structure. It can be formed by welding or bolting in the tank or trough, without occupying too much extra space. Compared with traditional stirring equipment, it has a simple structure and does not require continuous stirring equipment. It can achieve a good mixing effect by relying on the flow and direction change of the fluid in the baffle chamber. Without complex stirring components, it reduces the failure rate of the equipment, improves the reliability and operational stability of the equipment, and also saves space. It is easy to arrange and integrate into the existing treatment system, which greatly increases the scope of application. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model (vertical orientation);

[0024] Figure 2 This is a schematic diagram of the baffle chamber of this utility model (vertical orientation);

[0025] Figure 3 This is a schematic diagram of the overall structure of this utility model (horizontal orientation);

[0026] Figure 4 This is a schematic diagram of the baffle chamber of this utility model (horizontal orientation);

[0027] Figure 5 This is a schematic diagram showing the positions of the water supply pipe and the reaction ring of this utility model;

[0028] Figure 6 This is a cross-sectional view of the internal structure of the reaction ring of this utility model;

[0029] Figure 7 This is a schematic diagram (vertical) of the multi-layered baffle chamber of this utility model;

[0030] Figure 8 This is a schematic diagram (horizontal) of the multi-layered baffle chamber of this utility model;

[0031] Figure 9 This is a schematic diagram of the process flow of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Input pipe; 2. Reaction ring; 3. Connecting pipe; 4. Baffle plate; 5. Shell; 6. Distribution groove; 7. Discharge pipe; 8. First valve; 9. Second valve; 10. Drain pipe; 11. Damping plate; 12. Flange; 13. Drug delivery pipe; 14. Annular groove; 15. Injection port; 16. Pathway. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] refer to Figures 1-9 This embodiment proposes a non-powered flocculation mixing device, including a shell 5, on which a water supply pipe and a discharge pipe 7 are provided and communicate with the inside of the shell 5. A reaction ring 2 is provided on the input pipe 1, and a plurality of injection ports 15 are provided on the reaction ring 2. The injection ports 15 can inject drugs into the water supply pipe. A plurality of baffles 4 are provided inside the shell 5. One end of the baffles 4 is fixedly connected to the shell 5. The shell 5 and the plurality of baffles 4 cooperate to form a baffle chamber. A gap is left between adjacent baffles 4 for sewage to pass through. Two adjacent baffles 4 are staggered.

[0036] The reaction ring has a liquid passage 16, in which wastewater and drug solution are initially mixed.

[0037] The raw sludge continuously enters from one end of the water supply pipe. When it passes through the reaction ring 2, it is initially mixed with the agent sprayed from the injection port 15 in the reaction ring 2. Then it enters the reaction chamber inside the shell 5. Through the action of the baffle plate 4, the liquid is deflected multiple times in the chamber, and the flow direction is constantly changed, forming strong turbulence and eddies. This promotes the full mixing of the sludge liquid and the flocculant. As the fluid flows, the sludge gradually agglomerates into large flocs, achieving separation from the liquid.

[0038] The baffle chamber causes the sludge fluid and flocculant to repeatedly fold and turn during the flow within the chamber. This folding and turning allows the sludge liquid and the flocculant to mix thoroughly, causing the sludge to aggregate and separate from the liquid, thereby achieving mixing and flocculation.

[0039] The baffled reaction chamber can be made of square tubes, round tubes, or plate with grooves. It can be placed vertically or horizontally, and in a single-layer state, multiple layers can be stacked to increase the number of baffles and the total flow length. The number of baffles within the baffled reaction chamber is multiple, and the total flow length of the baffled reaction chamber is suitable for effectively flocculating small sludge flocs into flocs.

[0040] The baffle chamber has multiple layers, and adjacent baffle chambers are connected by pipelines. The water supply pipe is connected to the first layer of baffle chamber, and the discharge pipe 7 is connected to the last layer of baffle chamber.

[0041] The pipes between adjacent baffle chambers are staggered. For example, in a vertical baffle chamber, the connecting pipe between the first and second baffle chambers is located at the upper end, and the connecting pipe between the second and third baffle chambers is located at the lower end. This allows the wastewater to be baffled between the baffle chambers. Moreover, the multi-layer baffle chambers can increase the number of baffles and the total length of the baffle flow, which is beneficial to improving the degree of flocculation.

[0042] The reaction ring 2 is connected to a drug delivery tube 13. An annular groove 14 is provided inside the reaction ring 2. The drug delivery tube 13 is connected to the injection port 15 through the annular groove 14. Flanges 12 are detachably connected to both ends of the reaction ring 2.

[0043] The drug solution is delivered into the reaction ring 2 through the drug delivery tube 13, and then injected into each injection port 15 through the annular groove 14.

[0044] The flanges 12 at both ends of the reaction ring 2 are fastened to the reaction ring 2 with bolts, which can seal the annular groove inside the reaction ring 2.

[0045] The water supply pipe includes an inlet pipe 1 and a connecting pipe 3. The flanges 12 at both ends of the reaction ring 2 are connected to the inlet pipe 1 and the connecting pipe 3, respectively.

[0046] The flanges 12 at both ends of the reaction ring 2 are welded and fixed to the input pipe 1 and the connecting pipe 3, respectively.

[0047] The inner diameter of the reaction ring 2 (i.e. the diameter of the passage 16) is the same as the inner diameter of the input pipe 1 and the connecting pipe 3, and the length of the input pipe 1 and the connecting pipe 3 is more than six times the value of the inner diameter.

[0048] This ensures that the sludge liquid enters the reaction loop 2 at a stable flow rate and in a stable flow pattern, avoiding unstable flow rate and uneven mixing due to sudden changes in pipe diameter or insufficient pipe length.

[0049] A straight or bent pipe can be used after the connecting pipe 3, depending on the actual situation.

[0050] A distribution groove 6 is provided between the shell 5 and the discharge pipe 7.

[0051] The distribution groove 6 and the shell 5 are an integral structure. Several material distribution holes or material distribution grooves are evenly distributed in the distribution groove 6, and the material distribution holes or material distribution grooves are respectively connected to the discharge pipes 7.

[0052] A damping plate 11 is fixed inside the housing 5. The damping plate 11 is located at the front end of the distribution groove 6, and the discharge pipe 7 is located at the rear end of the distribution groove 6.

[0053] The damping plate 11 changes the direction of liquid flow, changing the liquid flow direction from downward to upward, allowing it to flow into the distribution tank 6.

[0054] After flocculation, the mixture is reversed by the damping plate 11 to the distribution tank 6 and then discharged to the discharge pipe 7. It then flows into the sludge dewatering machine for further treatment.

[0055] The bottom of the distribution trough 6 is connected to a first valve 8, and the bottom of the housing 5 is connected to a second valve 9.

[0056] It also includes a drain pipe 10, and the first valve 8 and the second valve 9 are both connected to the drain pipe 10.

[0057] One end of the first valve 8 is connected to the bottom of the distribution groove 6, one end of the second valve 9 is connected to the bottom of the housing 5, and the other ends of the first valve 8 and the second valve 9 are connected to the drain pipe 10.

[0058] When the equipment is being repaired or cleaned, open the first valve 8 and the second valve 9 to allow the residual liquid in the housing 5 and the distribution tank 6 to be discharged from the drain pipe 10.

[0059] The reaction ring 2 has four injection ports 15.

[0060] The reaction ring 2 is made of stainless steel or rigid engineering plastic.

[0061] Specific work process:

[0062] First, the raw sludge fluid continuously reaches the position of the reaction ring 2 through the input pipe 1. The injection port 15 on the reaction ring 2 injects the agent into the sludge fluid at a specific pressure and angle, realizing the initial mixing of the two in the reaction ring 2. Then, it reaches the baffle chamber in the shell 5 through the connecting pipe 3.

[0063] The baffle-type reaction chamber (referred to as the baffle chamber) consists of multiple layers of baffle plates 4 and a shell 5, and can be installed vertically or horizontally. Taking the vertical installation as an example, the number of baffles is set to multiple, and the total flow length of the baffle chamber is suitable for effectively flocculating small sludge flocs into flocs. The liquid undergoes multiple baffles within the chamber, constantly changing its flow direction, forming strong turbulence and eddies, which promotes thorough mixing of the sludge liquid and the flocculant. As the fluid flows, the sludge gradually agglomerates into large flocs, achieving separation from the liquid.

[0064] A distribution trough 6 is provided at the end of the reaction chamber. The distribution trough and the baffle chamber are an integral structure and are fixed by welding or bolts. The distribution trough 6 has uniformly distributed material distribution holes or material distribution channels inside, which uniformly discharge the flocculated mixture into the discharge pipe 7. The mixture is then transported to the sludge dewatering machine for further processing through the discharge pipe 7. The distribution trough 6 can ensure that the fluid entering the dewatering machine is evenly distributed, thereby improving the working efficiency and solid-liquid separation effect of the dewatering machine.

[0065] When the equipment is being repaired or cleaned, open the first valve 8 and the second valve 9 to allow the residual liquid in the housing 5 and the distribution tank 6 to be discharged from the drain pipe 10.

[0066] In the sludge treatment industry, flocculation and mixing is an indispensable pretreatment step before sludge dewatering. Traditional flocculation and mixing equipment relies on motors or other power devices to drive the rotating impellers to mix the sludge and flocculants. However, such equipment has many drawbacks: on the one hand, continuous power consumption leads to high operating costs and increases energy loss and carbon emissions, contradicting the concept of green environmental protection; on the other hand, the complex mechanical structure results in a large footprint, requiring ample installation space; furthermore, professional personnel are needed for operation and maintenance, further increasing labor costs, management difficulty, and maintenance expenses. Therefore, developing a flocculation and mixing device that requires no additional power, has a compact structure, is energy-efficient and environmentally friendly, and is easy to operate without manual intervention has become crucial to solving the current challenges in sludge treatment.

[0067] In practical applications, the dimensions of each component can be flexibly adjusted according to the sludge treatment volume and treatment requirements. When the treatment volume increases, the inner diameter of the reaction ring and the size of the baffled reaction chamber are increased accordingly, while the number of injection ports and the number of baffles are also increased to ensure the mixing and flocculation effect and meet the needs of different working conditions.

[0068] In summary, the non-powered flocculation mixing device of this application, with its scientific structural design, eliminates the need for drive equipment. It utilizes the inherent properties of the fluid itself to achieve efficient mixing of sludge fluid and chemical fluid, thereby agglomerating tiny mud flocs and achieving efficient flocculation mixing. It possesses significant advantages in energy saving, environmental protection, and high efficiency, and is suitable for dewatering various types of municipal sludge and sewage sludge, with broad application prospects.

[0069] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A non-powered flocculation mixing device, comprising a shell (5), characterized in that, The housing (5) is provided with a water supply pipe and a discharge pipe (7) communicating with the inside of the housing (5). The water supply pipe includes an input pipe (1). A reaction ring (2) is provided on the input pipe (1). A plurality of injection ports (15) are provided on the reaction ring (2). The injection ports (15) can inject drugs into the water supply pipe. A plurality of baffles (4) are provided inside the housing (5). One end of the baffle (4) is fixedly connected to the housing (5). The housing (5) and the plurality of baffles (4) cooperate to form a baffle chamber. A gap is left between adjacent baffles (4) for sewage to pass through. The two adjacent baffles (4) are staggered.

2. The non-powered flocculation mixing device according to claim 1, characterized in that, The baffle chamber is provided in multiple layers, and adjacent baffle chambers are connected by pipelines. The water supply pipe is connected to the first layer of baffle chambers, and the discharge pipe (7) is connected to the last layer of baffle chambers.

3. The non-powered flocculation mixing device according to claim 1, characterized in that, The reaction ring (2) is connected to a drug delivery tube (13), and an annular groove (14) is provided inside the reaction ring (2). The drug delivery tube (13) is connected to the injection port (15) through the annular groove (14). Flanges (16) are detachably connected to both ends of the reaction ring (2).

4. The non-powered flocculation mixing device according to claim 3, characterized in that, The water supply pipe also includes a connecting pipe (3), and the flanges (16) at both ends of the reaction ring (2) are connected to the input pipe (1) and the connecting pipe (3) respectively.

5. The non-powered flocculation mixing device according to claim 4, characterized in that, The inner diameter of the reaction ring (2) is the same as the inner diameter of the input pipe (1) and the connecting pipe (3), and the length of the input pipe (1) and the connecting pipe (3) is more than six times the inner diameter.

6. The non-powered flocculation mixing device according to claim 1, characterized in that, A distribution groove (6) is provided between the housing (5) and the discharge pipe (7).

7. The non-powered flocculation mixing device according to claim 6, characterized in that, A damping plate (11) is fixed inside the housing (5). The damping plate (11) is located at the front end of the distribution groove (6), and the discharge pipe (7) is located at the rear end of the distribution groove (6).

8. A non-powered flocculation mixing device according to claim 6, characterized in that, The bottom of the distribution groove (6) is connected to a first valve (8), and the bottom of the housing (5) is connected to a second valve (9).

9. A non-powered flocculation mixing device according to claim 8, characterized in that, It also includes an vent pipe (10), and the first valve (8) and the second valve (9) are both connected to the vent pipe (10).

10. A non-powered flocculation mixing device according to claim 1, characterized in that, The reaction ring (2) has four injection ports (15).

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