A purification treatment device for anti-mud polycarboxylate water reducing agent and a treatment method thereof

Abstract

This invention discloses a purification and treatment device and method for anti-mud polycarboxylate superplasticizer, belonging to the field of polycarboxylate superplasticizer processing technology. It includes a mixing tank with a discharge port at the bottom and a support frame at the top, on which a variable-speed motor is mounted. It also includes a stirring assembly disposed on the side of a connecting shaft, which expands the stirring range by changing its lateral length and longitudinal height; and a defoaming mechanism disposed inside the mixing tank, which eliminates air bubbles in the polycarboxylate superplasticizer through vibration. This purification and treatment device and method for anti-mud polycarboxylate superplasticizer allows the stirring mechanism to expand the stirring range by extending when mixing different raw materials, ensuring thorough mixing. Furthermore, after mixing, vibration accelerates the removal of air bubbles from the polycarboxylate superplasticizer, facilitating subsequent use.

Description

Technical Field

[0001] This invention relates to the field of polycarboxylate superplasticizer processing technology, specifically to a purification and treatment device and method for anti-mud polycarboxylate superplasticizer. Background Technology

[0002] Polycarboxylate superplasticizers are high-performance concrete admixtures optimized for high-clay-content aggregates (such as manufactured sand and mountain sand). Their core technology enhances resistance to clay mineral interference through molecular structure modification while maintaining high water reduction and workability. However, their production and processing generate waste gas, which, if directly emitted, would pollute the environment and therefore requires treatment. For example, a waste gas treatment device for a superplasticizer (publication number CN204865492U) includes a tank with a reaction pool at the bottom. One side of the reaction pool is connected to a waste gas pipeline through the tank, and the other side of the reaction pool has a drain outlet. The reaction pool is equipped with... A circulation pipe is connected to one side of the drain outlet, a liquid suction pump is installed on the circulation pipe, and a spray layer is connected to the end of the circulation pipe. A liquid pH detection device is installed at the bottom of the reaction tank. A reaction liquid supply pipe is connected to the side of the tank, and a water pump is connected to the reaction liquid supply pipe. A gas discharge pipe is connected to the top of the tank. A gas pH detection device and a damper I are sequentially installed on the gas discharge pipe. A non-conforming gas recovery pipe is connected to the gas discharge pipe between the gas pH detection device and the damper I. A damper II is installed on the non-conforming gas recovery pipe. This utility model reduces environmental pollution. For example, a waste gas treatment device for a high-performance water-reducing agent production equipment, disclosed in CN106268250A, relates to the field of water-reducing agent production equipment. The bottom of the tank is equipped with a reaction pool, one end of which has an air inlet connected to the exhaust port of the reaction vessel. The other end of the reaction pool is connected to an alkali pool. A suction pump is installed between the reaction pool and the alkali pool. A pH meter is installed inside the tank. The top of the tank is connected to an electric fan via a first pipe. The bottom material output end of the tank is connected to the material input end of a mixing vessel via a second pipe. The inlet end of the finished product storage tank is connected to the material output end of the mixing vessel via a third pipe. This device not only effectively treats the large amount of waste gas emitted during water-reducing agent production but also achieves true zero pollution, low material consumption, no formaldehyde residue in the water-reducing agent product, improved product stability during storage, enhanced product quality, and reduced enterprise operating costs. It is environmentally friendly and practical. However, the above-mentioned waste gas treatment device still has the following drawbacks in actual use: 1. Traditional water-reducing agent purification equipment has a limited mixing range during the material mixing process, and the mixing range is mostly fixed. This results in some materials in the mixing equipment not being mixed, leading to uneven mixing. Insufficient mixing means that the waste gas in the material cannot be fully released during the reaction process, thus the waste gas treatment is not comprehensive enough. 2. Furthermore, after stirring, polycarboxylate superplasticizer contains a large number of air bubbles. However, by simply letting the polycarboxylate superplasticizer stand, the air bubbles are slowly expelled, and there is a lack of a structure for defoaming after processing.

[0003] To address the aforementioned issues, there is an urgent need for innovative designs based on existing water-reducing agent purification equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a purification treatment device and method for anti-mud polycarboxylate superplasticizer, in order to solve the problems mentioned in the background art, that traditional mixing equipment has a limited mixing range during the mixing process and lacks a structure for defoaming after mixing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a purification and treatment device for anti-mud polycarboxylate superplasticizer, comprising a mixing tank, wherein a discharge port is provided at the bottom of the mixing tank and a support frame is provided at the top of the mixing tank, wherein a variable speed motor is installed on the support frame and a connecting shaft is connected to the output shaft of the variable speed motor; It also includes: a stirring assembly disposed on the side of the connecting shaft, the stirring assembly expanding the stirring range by changing the lateral length and the longitudinal height; A defoaming mechanism is installed inside the mixing tank. The defoaming mechanism eliminates air bubbles in the polycarboxylate superplasticizer by vibration.

[0006] Preferably, the stirring assembly includes a support sleeve fixedly sleeved on the outside of the connecting shaft, and a limit block is fixed at the bottom of the support sleeve, and a stirring rod is hinged to the inner side of the support sleeve.

[0007] Preferably, the stirring rod has a rotation range of 0-90°, and the stirring rod is hollow. A movable rod passes through the end of the stirring rod away from the connecting shaft, and the movable rod and the stirring rod are elastically slidably connected.

[0008] Preferably, a first magnetic block is fixed to the end of the movable rod away from the stirring rod, and the first magnetic block has an inverted "L" shape structure, and the horizontal end face of the first magnetic block has an arc surface structure. At the same time, after the first magnetic block rotates, it comes into contact with the side of the connecting shaft.

[0009] Preferably, the upper end face of the stirring rod is provided with a fixing groove, and a movable plate is hinged to the inner side of the fixing groove. The rotation range of the movable plate is 0-90°. At the same time, the movable plate and the stirring rod are elastically rotatably connected, and the hinge end of the movable plate is located below the horizontal end of the first magnetic block.

[0010] Preferably, the defoaming mechanism includes a float plate disposed inside the mixing tank, and the float plate is located below the stirring assembly. The float plate is hollow, and the edge of the float plate is fixedly connected to one end of the connecting rope.

[0011] Preferably, the other end of the connecting rope is fixed to the side of the support frame, and the inside of the float plate is provided with a fixing cavity at equal angles, with a guide rod passing through the inside of the fixing cavity.

[0012] Preferably, the guide rod and the float plate are elastically slidably connected, and a connecting block is fixed at the end of the guide rod away from the float plate. The connecting block and the second magnetic block are magnetically connected, and the second magnetic block is fixed at an equal angle to the inner wall of the mixing tank.

[0013] A processing method for a purification treatment device using anti-mud polycarboxylate superplasticizer, the processing method comprising the following steps: Step 1: Select a 20–50 m³ enamel vertical mixing tank and equip it with a variable speed motor and a jacketed temperature control system to meet the processing requirements of polycarboxylate superplasticizer and to withstand acidic environments to adapt to the polymerization reaction. Step 2: Add the raw materials such as isobutylene polyoxyethylene ether, acrylic acid, acryloyloxyethyltrimethylammonium chloride, ammonium persulfate + vitamin C to the mixing tank, and use a variable speed motor to drive the stirring component to rotate to achieve mixing. When the stirring component rotates, the mixing range can be expanded by extending. Step 3: After mixing is completed, the defoaming mechanism is raised from the bottom of the mixing tank to a high position by vibration to remove the air bubbles contained in the polycarboxylate superplasticizer, so that the polycarboxylate superplasticizer can be used later.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In the purification and treatment equipment and method for the anti-mud polycarboxylate superplasticizer, the stirring mechanism can expand the stirring range by extending when mixing different raw materials, allowing the raw materials to be fully mixed. This enables the superplasticizer to react fully, and the generated waste gas can be completely released for purification. Furthermore, after mixing, vibration can be used to accelerate the removal of air bubbles from the polycarboxylate superplasticizer, facilitating subsequent use. Specific details are as follows: 1. When the stirring rod rotates, the centrifugal force causes the movable rod to slide and extend. Therefore, the movable rod can drive the first magnetic block away from the stirring rod, expanding the mixing range laterally. After the first magnetic block separates from the stirring rod, it can release the restriction on the movable plate. The horizontal movable plate rotates to a vertical state, thus expanding the longitudinal mixing range. Therefore, the uniformity of the mixture can be improved by expanding the mixing range during the mixing process. 2. The float can rise in the polycarboxylate superplasticizer by its own buoyancy. During the rising process, the magnetic connection between the connecting block and the second magnetic block, as well as the elasticity of the spring, cause the connecting block to strike the second magnetic block and the connecting block to strike the float. The resulting vibration can accelerate the discharge of air bubbles in the polycarboxylate superplasticizer. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the mixing tank of the present invention; Figure 3 This is a schematic diagram of the connecting shaft structure of the present invention; Figure 4 This is a schematic cross-sectional view of the stirring rod of the present invention; Figure 5 This is a schematic diagram of the structure of the movable rod after it has moved according to the present invention; Figure 6 This is a schematic diagram of the structure of the stirring rod after rotation according to the present invention; Figure 7 This is a top-section structural diagram of the mixing tank of the present invention; Figure 8 This is a schematic cross-sectional view of the floating plate structure of the present invention; Figure 9 This is a schematic diagram of the connecting block and the second magnetic block structure of the present invention; Figure 10 This is a top-section schematic diagram of the floating plate structure of the present invention.

[0016] In the diagram: 1. Mixing tank; 2. Discharge port; 3. Support frame; 4. Variable speed motor; 5. Connecting shaft; 6. Support sleeve; 7. Limiting block; 8. Stirring rod; 9. Movable rod; 10. First magnetic block; 11. Movable plate; 12. Fixed groove; 13. Connecting rope; 14. Float plate; 15. Fixed cavity; 16. Guide rod; 17. Connecting block; 18. Second magnetic block; 19. Purifier. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-10 The present invention provides the following technical solution: Example 1: To address the problems existing in the prior art, this example provides a purification and treatment device for anti-mud polycarboxylate superplasticizer, comprising a mixing tank 1, a discharge port 2 at the bottom of the mixing tank 1, and a support frame 3 at the top of the mixing tank 1. A variable speed motor 4 is mounted on the support frame 3, and a connecting shaft 5 is connected to the output shaft of the variable speed motor 4. The device also includes: a stirring assembly disposed on the side of the connecting shaft 5, which expands the stirring range by changing its lateral length and longitudinal height; and a defoaming mechanism disposed inside the mixing tank 1, which eliminates air bubbles in the polycarboxylate superplasticizer through vibration.

[0019] Existing mixing equipment has a limited and mostly fixed mixing range, resulting in some materials not being mixed properly and exhibiting uneven mixing. This leads to incomplete exhaust gas release. Figures 1-5As shown, the stirring assembly includes a support sleeve 6 fixedly sleeved on the outside of the connecting shaft 5, and a limit block 7 fixed at the bottom of the support sleeve 6. A stirring rod 8 is hinged to the inner side of the support sleeve 6. The stirring rod 8 has a rotation range of 0-90° and is hollow. A movable rod 9 passes through the end of the stirring rod 8 away from the connecting shaft 5, and the movable rod 9 and the stirring rod 8 are elastically slidably connected. A first magnetic block 10 is fixed to the end of the movable rod 9 away from the stirring rod 8, and the first magnetic block 10 has an inverted "L" shaped structure. Furthermore, the horizontal end face of the first magnetic block 10 is an arc-shaped structure, and after the first magnetic block 10 rotates, it comes into contact with the side of the connecting shaft 5; the upper end face of the stirring rod 8 is provided with a fixing groove 12, and a movable plate 11 is hinged to the inner side of the fixing groove 12, and the rotation range of the movable plate 11 is 0-90°, and the movable plate 11 and the stirring rod 8 are elastically rotatably connected, and the hinge end of the movable plate 11 is located below the horizontal end of the first magnetic block 10; after pouring the various raw materials to be mixed into the mixing tank 1, the variable speed motor 4 drives the connecting rod 5 to rotate. The shaft 5 rotates, which in turn drives the stirring mechanism to rotate and mix the materials. When the stirring rod 8 rotates, the centrifugal force can drive the movable rod 9 to slide inside it. Therefore, the movable rod 9 can drive the first magnetic block 10 away from the stirring rod 8, expanding the mixing range laterally. After the first magnetic block 10 separates from the stirring rod 8, it can release the restriction on the movable plate 11. Since the spring at the rotating part of the movable plate 11 is initially in a compressed state, it can rotate through the elasticity. The horizontal movable plate 11 rotates to a vertical state, realizing the expansion of the longitudinal mixing range. Therefore, the uniformity of the mixing can be improved by expanding the mixing range during the mixing process. In this way, the waste gas generated during the reaction of the water-reducing agent can be completely released and discharged, and the waste gas can be purified by the purifier 19. When the variable speed motor 4 stops driving, the elasticity of the spring can drive the movable rod 9 to retract into the interior of the stirring rod 8, and drive the first magnetic block 10 to fit with the stirring rod 8. The first magnetic block 10 pushes the movable plate 11 to rotate and be stored in the fixed groove 12, reducing the space occupied by the stirring mechanism and facilitating subsequent defoaming.

[0020] Example 2: After stirring, polycarboxylate superplasticizer contains a large number of air bubbles. Simply allowing the polycarboxylate superplasticizer to stand results in slow bubble removal and lacks a structure for defoaming after mixing. Therefore, this example uses the following technical solution: Figures 6-10As shown, the defoaming mechanism includes a float 14 disposed inside the mixing tank 1, located below the stirring assembly, and the float 14 is hollow. The edge of the float 14 is fixedly connected to one end of a connecting rope 13; the other end of the connecting rope 13 is fixed to the side of the support frame 3. A fixing cavity 15 is formed at equal angles inside the float 14, and a guide rod 16 passes through the fixing cavity 15. The guide rod 16 and the float 14 are elastically slidably connected, and a connecting block 17 is fixed to the end of the guide rod 16 away from the float 14. The connecting block 17 and the second magnetic block 18 are magnetic. The mixing rod 8 is fixed at an angle to the inner wall of the mixing tank 1. After the polycarboxylate superplasticizer is mixed, the stirring rod 8 stops rotating, thus releasing the limit on the float 14. The float 14 can rise in the polycarboxylate superplasticizer by its own buoyancy. During the rising process, the magnetic connection between the connecting block 17 and the second magnetic block 18 drives the guide rod 16 to slide in the float 14. After the connecting block 17 separates from the second magnetic block 18, the elasticity of the spring can drive the guide rod 16 to retract into the fixed cavity 15. Thus, during the rising process of the float 14... The vibrations generated by the striking of connecting block 17 and the second magnetic block 18, and the striking of connecting block 17 and the float plate 14, accelerate the removal of air bubbles from the polycarboxylate superplasticizer. The float plate 14 rises from the bottom of the mixing tank 1 to its highest point, completing the comprehensive defoaming of the polycarboxylate superplasticizer. During the rising process, the float plate 14 pushes the stirring rod 8 upwards and is attracted to the side of the connecting shaft 5 by the first magnetic block 10, thus not affecting the rising and falling of the float plate 14. After mixing and defoaming, the polycarboxylate superplasticizer is easily accessible. When the next mixing is needed, due to the presence of air bubbles in the mixing tank 1... Without material, the float 14 will descend to the bottom of the mixing tank 1 under its own gravity. During the addition of material, the stirring mechanism stirs synchronously. Centrifugal force can drive the first magnetic block 10 to separate from the connecting shaft 5, so that the stirring rod 8 is in a horizontal state. Since the stirring rod 8 is always rotating, it has a limiting effect on the float 14 at the bottom. Therefore, even if material is continuously added during the mixing process, the float 14 will not float due to the limiting effect, which facilitates subsequent defoaming. The connecting rope 13 is made of soft material, so even if the stirring rod 8 touches the connecting rope 13 when it rotates, it will not be hindered.

[0021] A processing method for a purification treatment device using anti-mud polycarboxylate superplasticizer, the processing method comprising the following steps: Step 1: Select a 20–50 m³ enamel vertical mixing tank 1, and equip it with a variable speed motor 4 with a speed of 50–200 rpm and a jacket temperature control system with a temperature control accuracy of ±2℃ to meet the processing requirements of polycarboxylate superplasticizer and to be resistant to acidic environment to adapt to the polymerization reaction. Step 2: Add the raw materials such as isobutylene polyoxyethylene ether (HPEG), acrylic acid (AA), acryloyloxyethyltrimethylammonium chloride anti-mud functional monomer, ammonium persulfate + vitamin C reducing agent, etc. to the mixing tank 1, and drive the stirring component to rotate through the variable speed motor 4 to achieve mixing. When the stirring component rotates, the mixing range can be expanded by extending. Step 3: After mixing is completed, the defoaming mechanism is raised from the bottom of the mixing tank 1 to a high position by vibration to remove the air bubbles contained in the polycarboxylate superplasticizer, so that the polycarboxylate superplasticizer can be used later.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A purification treatment device for anti-mud polycarboxylate superplasticizer, comprising a mixing tank (1), wherein a discharge port (2) is provided at the bottom of the mixing tank (1), and a support frame (3) is provided at the top of the mixing tank (1), wherein a variable speed motor (4) is installed on the support frame (3), and a connecting shaft (5) is connected to the output shaft of the variable speed motor (4). characterized in that Also includes: A stirring assembly is disposed on the side of the connecting shaft (5), and the stirring assembly expands the stirring range by changing the lateral length and the longitudinal height; A defoaming mechanism is installed inside the mixing tank (1), which eliminates air bubbles in the polycarboxylate superplasticizer by vibration; A purifier (19) is installed on the side of the support frame (3), and the purifier (19) absorbs the waste gas generated during the processing of the water-reducing agent.

2. The anti-mud polycarboxylate superplasticizer purification treatment equipment according to claim 1, characterized in that: The stirring assembly includes a support sleeve (6) fixedly sleeved on the outside of the connecting shaft (5), and a limit block (7) is fixed at the bottom of the support sleeve (6), and a stirring rod (8) is hinged to the inside of the support sleeve (6).

3. The anti-mud polycarboxylate superplasticizer purification treatment equipment according to claim 2, characterized in that: The stirring rod (8) has a rotation range of 0-90° and is hollow. A movable rod (9) passes through the end of the stirring rod (8) away from the connecting shaft (5). The movable rod (9) and the stirring rod (8) are elastically slidably connected.

4. The purification and treatment equipment for anti-sludge polycarboxylate superplasticizer according to claim 3, characterized in that: The movable rod (9) is fixed with a first magnetic block (10) at the end away from the stirring rod (8). The first magnetic block (10) has an inverted "L" shaped structure and the horizontal end face of the first magnetic block (10) has an arc surface structure. At the same time, after the first magnetic block (10) rotates, it comes into contact with the side of the connecting shaft (5).

5. The purification and treatment equipment for anti-sludge polycarboxylate superplasticizer according to claim 3, characterized in that: The upper end face of the stirring rod (8) is provided with a fixed groove (12), and a movable plate (11) is hinged to the inner side of the fixed groove (12). The rotation range of the movable plate (11) is 0-90°. At the same time, the movable plate (11) and the stirring rod (8) are elastically rotatably connected, and the hinge end of the movable plate (11) is below the horizontal end of the first magnetic block (10).

6. The purification and treatment equipment for anti-sludge polycarboxylate superplasticizer according to claim 1, characterized in that: The defoaming mechanism includes a float plate (14) disposed in the mixing tank (1), and the float plate (14) is located below the stirring assembly. The float plate (14) is hollow, and the edge of the float plate (14) is fixedly connected to one end of the connecting rope (13).

7. The purification and treatment equipment for anti-sludge polycarboxylate superplasticizer according to claim 6, characterized in that: The other end of the connecting rope (13) is fixed to the side of the support frame (3). The floating plate (14) has a fixed cavity (15) at equal angles inside, and a guide rod (16) passes through the fixed cavity (15).

8. The purification and treatment equipment for anti-sludge polycarboxylate superplasticizer according to claim 7, characterized in that: The guide rod (16) and the float (14) are elastically slidably connected, and a connecting block (17) is fixed at the end of the guide rod (16) away from the float (14), and the connecting block (17) and the second magnetic block (18) are magnetically connected, while the second magnetic block (18) is fixed at an equal angle to the inner wall of the mixing tank (1).

9. The processing method of the purification treatment equipment for anti-mud polycarboxylate superplasticizer according to claim 1, characterized in that: The processing method includes the following steps: Step 1: Select a 20–50 m³ enamel vertical mixing tank (1) and equip it with a variable speed motor (4) (speed 50–200 rpm) and a jacketed temperature control system (temperature control accuracy ±2℃) to meet the processing requirements of polycarboxylate superplasticizer and to be resistant to acidic environment to adapt to polymerization reaction; Step 2: Add the raw materials such as isobutylene polyoxyethylene ether (HPEG), acrylic acid (AA), acryloyloxyethyltrimethylammonium chloride (anti-mud functional monomer), ammonium persulfate + vitamin C (reducing agent) to the mixing tank (1), and drive the stirring component to rotate through the variable speed motor (4) to achieve mixing. When the stirring component rotates, the mixing range can be expanded by the extension method. Step 3: After mixing is completed, the defoaming mechanism is raised from the bottom of the mixing tank (1) to a high position by vibration to remove the air bubbles contained in the polycarboxylate superplasticizer so that the polycarboxylate superplasticizer can be used later.

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