An apparatus for preparing a flocculant for water treatment

Abstract

This invention discloses a device for preparing flocculants for water treatment, relating to the field of flocculant preparation technology. The device includes a mixing tank, a feeding mixing pump, a chamber-splitting and pressing mechanism, and a liquid-injection stirring mechanism. The invention uses a drive motor to rotate a crank, which in turn rotates the mixing tank via pulleys and an open swinging part. This allows for the addition of polymeric flocculant material into the dissolved water containing dissolved inorganic flocculant, preventing particle adhesion and agglomeration. The changing chamber structure between the open-splitting and pressing baffle and the inner wall of the mixing tank away from the stirring blades causes the gradually dissolved solution to expand its absorption and squeeze out water through the opening of the baffle. Combined with the counter-rotating of two powder-spraying curved pipes, this results in a linear increase in the prepared concentration without excessively increasing the stirring speed, thus avoiding damage to the flocculant molecules and ensuring the quality of the prepared flocculant product.

Description

Technical Field

[0001] This invention relates to the field of flocculant preparation technology, and more specifically to an apparatus for preparing a flocculant for water treatment. Background Technology

[0002] Flocculants are substances that can cause dispersed particles in water to coagulate and flocculate into aggregates. They are mainly used in wastewater treatment systems. Commonly used flocculants are mainly organic flocculants, such as polyacrylamide. Before using flocculants in wastewater treatment, a solution needs to be prepared, which involves adding dry powder and water to dissolve the flocculant solution. The quality of the flocculant solution preparation directly affects the wastewater treatment effect. Most existing devices directly add the dry powder into the mixing tank and then stir.

[0003] However, after long-term use, existing technologies have revealed certain drawbacks, such as: First, when inorganic flocculant powder is added to water, a large amount floats on the surface. When mixed with polymeric flocculant powder, the surface of both inorganic and polymeric flocculant powders dissolves rapidly, causing particles to adhere to each other and clump together, resulting in some particles not completely dissolving. Second, to ensure uniform mixing and improve preparation efficiency, existing technologies often excessively increase the stirring speed. While this accelerates dilution and dissolution, it also damages some flocculant molecules, leading to poor quality flocculant products. Summary of the Invention

[0004] The purpose of this invention is to provide an apparatus for preparing flocculants for water treatment, so as to solve the above-mentioned defects caused by the prior art.

[0005] A device for preparing a flocculant for water treatment includes a mixing tank, a feeding mixing pump, a chamber-dividing pushing mechanism, and a liquid inlet stirring mechanism. The upper end of the mixing tank has a strip-shaped opening, and the sides of the mixing tank are symmetrically arranged with guide rails. A liquid outlet is provided on the mixing tank on the other side of the guide rails. The feeding mixing pump is installed on the mixing tank through the liquid inlet stirring mechanism, and the chamber-dividing pushing mechanism is also installed on the mixing tank.

[0006] The chamber-splitting pushing mechanism includes a drive motor, an opening pushing baffle, and stirring blades. The drive motor is installed on the side of the mixing tank, and a crank is installed at the output end of the drive motor. A pulley is rotatably installed at the end of the crank. A rotating shaft is also rotatably installed on the mixing tank. An opening swing part is fixedly connected to the upper end of the rotating shaft. The pulley is slidably disposed on the opening swing part. The stirring blades are adjustablely installed on the lower part of the rotating shaft. A rack is installed in the strip-shaped opening. One end of the opening swing part has a fan-shaped tooth structure and meshes with the rack. The opening pushing baffle is slidably disposed in the mixing tank and fixedly disposed at the lower end of the rack.

[0007] Preferably, the liquid inlet stirring mechanism includes an open sliding member, a powder spraying curved tube, and a toothed ring. The open sliding member is slidably mounted on a guide rail. The middle part of the open sliding member has an outwardly expanding arc structure. A pulley is also slidably mounted inside the open sliding member. Two symmetrically arranged non-fully threaded rods are fixed to the side end of the open sliding member. There are two powder spraying curved tubes, both of which are rotatably mounted on the mixing tank. The feeding mixing pump is mounted on the upper end of the powder spraying curved tube. The toothed ring is mounted on the powder spraying curved tube and meshes with the threaded section of the non-fully threaded rod.

[0008] Preferably, the opening push-press baffle is fitted with the inner wall of the mixing tank, and the lowest edge of the opening of the opening push-press baffle is placed below the liquid level in the mixing tank.

[0009] Preferably, the stirring blades are placed at the bottom of the mixing tank and have no rigid contact with the opening push-press partition and the inner wall of the mixing tank.

[0010] Preferably, the lower ports of the two powder spraying tubes are positioned below the liquid level inside the mixing tank.

[0011] The advantages of this invention are:

[0012] By setting up a compartmentalized pushing mechanism and a liquid stirring mechanism on the mixing tank, the output end of the drive motor drives the crank to rotate, which in turn drives the pulley and the open swing part to rotate on the mixing tank, thereby stirring the dissolved water in the mixing tank and completing the initial stirring action of the inorganic flocculant dry powder in the water. At the same time, the sliding process of the pulley will also drive the open sliding part to reciprocate synchronously in the guide rail, so as to add polymer flocculant material into the dissolved water of the dissolved inorganic flocculant material, avoiding the mutual adhesion and agglomeration between the two particles;

[0013] During the reciprocating sliding of the open-ended push-pressure baffle, two independent water-holding chambers with constantly changing space are formed inside the mixing tank. The changing chamber between the open-ended push-pressure baffle and the inner wall of the mixing tank on the side away from the stirring blades causes the gradually dissolved solution to expand and squeeze out water through the opening of the open-ended push-pressure baffle. Combined with the counter-rotation of the two powder spraying tubes, the concentration increases linearly without excessively increasing the stirring speed, thus avoiding the destruction of flocculant molecules and ensuring the quality of the prepared flocculant product. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the cavity pushing mechanism in this invention.

[0016] Figure 3 This is a schematic diagram of the assembly of the liquid inlet stirring mechanism and the partial chamber pushing mechanism in this invention.

[0017] Figure 4 This is a schematic diagram of the internal structure of the present invention.

[0018] Among them, 1-mixing tank, 2-feeding mixing pump, 3-divided chamber pushing mechanism, 4-liquid inlet stirring mechanism, 5-strip opening, 6-guide rail, 7-liquid outlet, 31-drive motor, 32-opening pushing baffle, 33-stirring blade, 34-crank, 35-pulley, 36-rotating shaft, 37-opening swing part, 38-rack, 41-opening sliding part, 42-powder spraying curved pipe, 43-tooth ring, 44-non-fully threaded rod. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] like Figures 1 to 4 As shown, a flocculant preparation device for water treatment includes a mixing tank 1, a feeding mixing pump 2, a chamber-dividing pushing mechanism 3, and a liquid inlet stirring mechanism 4. The upper end of the mixing tank 1 is provided with a strip-shaped opening 5, and the side end of the mixing tank 1 is symmetrically provided with guide rails 6. The mixing tank 1 is provided with a liquid outlet 7 on the other side of the guide rails 6. The feeding mixing pump 2 is installed on the mixing tank 1 through the liquid inlet stirring mechanism 4, and the chamber-dividing pushing mechanism 3 is also installed on the mixing tank 1.

[0021] In this embodiment, the chamber-splitting pushing mechanism 3 includes a drive motor 31, an opening pushing partition 32, and a stirring blade 33. The drive motor 31 is installed on the side of the mixing tank 1. A crank 34 is installed at the output end of the drive motor 31. A pulley 35 is rotatably installed at the end of the crank 34. A rotating shaft 36 is also rotatably installed on the mixing tank 1. An opening swing part 37 is fixedly connected to the upper end of the rotating shaft 36. The pulley 35 is slidably disposed on the opening swing part 37. The stirring blade 33 is adjustablely installed at the lower part of the rotating shaft 36. A rack 38 is installed in the strip-shaped opening 5. One end of the opening swing part 37 has a fan-shaped tooth structure and meshes with the rack 38. The opening pushing partition 32 is slidably disposed in the mixing tank 1 and fixedly disposed at the lower end of the rack 38.

[0022] It should be noted that the drive motor 31 is a servo motor.

[0023] In this embodiment, the liquid inlet stirring mechanism 4 includes an open sliding member 41, a powder spraying curved tube 42, and a toothed ring 43. The open sliding member 41 is slidably mounted on the guide rail 6. The middle part of the open sliding member 41 has an outwardly flared arc structure. The pulley 35 is also slidably mounted inside the open sliding member 41. Two symmetrically arranged non-fully threaded rods 44 are fixed to the side end of the open sliding member 41. There are two powder spraying curved tubes 42, both of which are rotatably mounted.

[0024] On the mixing tank 1, the feeding mixing pump 2 is installed at the upper end of the powder spraying curved pipe 42, and the toothed ring 43 is installed on the powder spraying curved pipe 42 and meshes with the threaded section of the non-fully threaded rod 44.

[0025] It is worth mentioning that the two toothed rings 43 are symmetrically meshed with the corresponding non-fully threaded rods 44, causing the two powder spraying tubes 42 to rotate in opposite directions, thereby improving the impact dispersion effect of powdered materials in water.

[0026] In this embodiment, the opening push-press baffle 32 is fitted with the inner wall of the mixing tank 1, and the lowest edge of the opening of the opening push-press baffle 32 is placed below the liquid level in the mixing tank 1.

[0027] In this embodiment, the stirring blade 33 is placed at the bottom of the stirring tank 1 and has no rigid contact with the opening push-press partition 32 and the inner wall of the stirring tank 1.

[0028] In addition, the lower ports of the two powder spraying tubes 42 are positioned below the liquid level inside the mixing tank 1.

[0029] Working process and principle: In the process of using this invention, firstly, an appropriate amount of water is filled into the mixing tank 1. Then, the inorganic flocculant material dry powder and the polymer flocculant material dry powder to be dissolved are added to the two feeding mixing pumps 2 respectively. First, the feeding mixing pump 2 containing the inorganic flocculant material dry powder is turned on, and the inorganic flocculant material dry powder is sprayed into the dissolving water through the powder spraying pipe 42. By spraying underwater, the dry powder can avoid a large amount of dust being thrown up during the placement process.

[0030] Simultaneously, the drive motor 31 is started, causing its output end to drive the crank 34 to rotate. This crank 34 rotates via the pulley 35 and the open swing part 37, which in turn drives the 36 to rotate on the mixing tank 1. This, in turn, drives the 33 to stir the dissolved water in the mixing tank 1, completing the initial stirring action of the inorganic flocculant material dry powder in the water. The reciprocating sliding of the pulley 35 in the 37 will drive the open pushing partition 32 to reciprocate synchronously in the mixing tank 1 via the fan-shaped tooth structure and rack 38 at the end of the open swing part 37.

[0031] Simultaneously, the sliding process of pulley 35 will also drive the opening sliding member 41 to reciprocate synchronously within the guide rail 6. The sliding of the opening sliding member 41 will drive the two toothed rings 43 to rotate via the non-fully threaded rods 44 on both sides. The two toothed rings 43 can drive their respective corresponding powder spraying curved pipes 42 to rotate in the opposite direction. When the pulley 35 slides to the arc-shaped structure in the middle of the opening sliding member 41, the opening sliding member 41 is in a paused sliding state. At this time, the feeding mixing pump 2 containing inorganic flocculant dry powder is turned off, and the feeding mixing pump 2 containing polymer flocculant dry powder on the other side is turned on. The polymer flocculant dry powder is sprayed into the dissolved water through the powder spraying curved pipe 42, thereby realizing the addition of polymer flocculant material to the dissolved water containing dissolved inorganic flocculant material, avoiding the mutual adhesion and agglomeration between the two particles.

[0032] During the reciprocating sliding of the opening push-pressure baffle 32, two independent water-containing chambers with constantly changing space are formed inside the mixing tank 1. This is for the side of the opening push-pressure baffle 32 that is furthest from the mixing blades 33.

[0033] The changes in the chambers between the inner walls of the mixing tank 1 will cause the solution, which is gradually dissolved in batches, to expand the water absorption and squeeze out the water through the opening of the partition 32. Combined with the counter-rotation of the two powder spraying tubes 42, the concentration of the solution increases linearly without the need to excessively increase the stirring speed.

[0034] Based on the above, the present invention provides a cavity-dividing pushing mechanism 3 and a liquid stirring mechanism 4 on the mixing tank 1. The output end of the drive motor 31 drives the crank 34 to rotate, which drives the 36 to rotate on the mixing tank 1 via the pulley 35 and the open swing part 37, thereby driving the 33 to stir the dissolved water in the mixing tank 1, completing the initial stirring action of the inorganic flocculant material dry powder in the water. At the same time, the sliding process of the pulley 35 will also drive the open sliding part 41 to reciprocate synchronously within the guide rail 6, realizing the addition of polymer flocculant material to the dissolved water of the dissolved inorganic flocculant material, avoiding the mutual adhesion and agglomeration between the two particles;

[0035] During the reciprocating sliding of the opening push-pressure baffle 32, two independent water-holding chambers with constantly changing space are formed inside the mixing tank 1. The change in the chamber between the opening push-pressure baffle 32 and the inner wall of the mixing tank 1 on the side away from the stirring blade 33 will cause the gradually dissolved solution to expand the water absorption and squeeze out the water through the opening of the opening push-pressure baffle 32. Combined with the counter-rotation of the two powder spraying curved pipes 42, the concentration of the prepared product increases linearly. There is no need to excessively increase the stirring speed, which avoids the flocculant molecules being destroyed and ensures the quality of the prepared flocculant product.

[0036] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. An apparatus for preparing a flocculant for water treatment, characterized in that, The system includes a mixing tank (1), a feeding mixing pump (2), a chamber pushing mechanism (3), and a liquid inlet stirring mechanism (4). The upper end of the mixing tank (1) is provided with a strip-shaped opening (5), and the side end of the mixing tank (1) is symmetrically provided with guide rails (6). The mixing tank (1) is provided with a liquid outlet (7) on the other side of the guide rails (6). The feeding mixing pump (2) is installed on the mixing tank (1) through the liquid inlet stirring mechanism (4), and the chamber pushing mechanism (3) is also installed on the mixing tank (1). The chamber-splitting pushing mechanism (3) includes a drive motor (31), an opening pushing partition (32), and a stirring blade (33). The drive motor (31) is installed on the side of the mixing tank (1). A crank (34) is installed at the output end of the drive motor (31). A pulley (35) is rotatably installed at the end of the crank (34). A rotating shaft (36) is also rotatably installed on the mixing tank (1). An opening swing part (37) is fixedly connected to the upper end of the rotating shaft (36). The pulley (35) is slidably disposed on the opening swing part (37). The stirring blade (33) is adjustablely installed on the lower part of the rotating shaft (36). A rack (38) is installed in the strip-shaped opening (5). One end of the opening swing part (37) is a fan-shaped tooth structure that meshes with the rack (38). The opening pushing partition (32) is slidably disposed in the mixing tank (1) and fixedly disposed on the lower end of the rack (38).

2. The apparatus for preparing a flocculant for water treatment according to claim 1, characterized in that: The liquid inlet stirring mechanism (4) includes an open sliding member (41), a powder spraying curved tube (42), and a toothed ring (43). The open sliding member (41) is slidably mounted on the guide rail (6). The middle part of the open sliding member (41) is an outwardly expanding arc structure. The pulley (35) is also slidably mounted inside the open sliding member (41). Two symmetrically arranged non-fully threaded rods (44) are fixed on the side end of the open sliding member (41). There are two powder spraying curved tubes (42), both of which are rotatably mounted on the mixing tank (1). The feeding mixing pump (2) is mounted on the upper end of the powder spraying curved tube (42). The toothed ring (43) is mounted on the powder spraying curved tube (42) and meshes with the threaded section of the non-fully threaded rod (44).

3. The apparatus for preparing a flocculant for water treatment according to claim 1, characterized in that: The opening push-press baffle (32) is fitted with the inner wall of the mixing tank (1), and the lowest edge of the opening of the opening push-press baffle (32) is placed below the liquid level in the mixing tank (1).

4. The apparatus for preparing a flocculant for water treatment according to claim 1, characterized in that: The stirring blade (33) is placed at the bottom of the mixing tank (1) and has no rigid contact with the opening push-press partition (32) and the inner wall of the mixing tank (1).

5. The apparatus for preparing a flocculant for water treatment according to claim 2, characterized in that: The lower ports of the two powder spraying tubes (42) are positioned below the liquid level inside the mixing tank (1).

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