Liquid medicine matching equipment for sewage treatment and use method of liquid medicine matching equipment

Abstract

The invention discloses liquid medicine matching equipment for sewage treatment and a use method of the liquid medicine matching equipment, and relates to the technical field of sewage treatment equipment. The device comprises a matching barrel, an inner cavity of the matching barrel is provided with a ventilation stirring assembly, the bottom of the matching barrel is fixedly connected with a base, the ventilation stirring assembly comprises a rotating cylinder, and the rotating cylinder is connected with the top of the matching barrel in a penetrating mode. By combining the rotating stirring blades with the design of releasing gas from the exhaust holes in the bottom of the rotating drum, a mixing environment with the synergistic effect of mechanical force and aerodynamic force is formed, strong shear flow generated by the stirring blades can rapidly break initial cakes of powdery medicaments, and a continuously rising fine bubble net penetrates through the materials, so that the powdery medicaments can be quickly crushed. The double-acting mechanism is used for preventing particles from being agglomerated again and promoting the particles to suspend and diffuse in liquid, so that the problems of non-uniform mixing and insufficient powder dissolution of a single stirring mechanism in the prior art are solved, and the mixing efficiency and the homogeneity of liquid medicine are improved.

Description

A wastewater treatment chemical mixing equipment and its usage method Technical Field

[0001] This invention belongs to the technical field of sewage treatment equipment, and in particular relates to a sewage treatment chemical solution preparation device and its usage method. Background Technology

[0002] In wastewater treatment processes, chemical preparation is a crucial pre-treatment step. Its core function is to mix powdered and liquid agents evenly according to a preset ratio to form a composite solution with stable concentration and uniform dispersion. This solution is then introduced into the main wastewater treatment equipment to react with the wastewater, thereby removing suspended solids and harmful substances from the wastewater and ensuring the wastewater treatment effect.

[0003] Chinese patent application CN214233872U discloses a mixing device for wastewater treatment agent production, including a casing. Support feet are fixedly installed on the lower surface of the casing, and an inlet pipe is fixedly installed on the upper surface of the casing. A limit block is fixedly installed inside the inlet pipe. This invention achieves the goal of fully mixing the entire liquid, greatly improving the degree and quality of liquid mixing.

[0004] While this patent can improve the quality of drug mixing, it still suffers from the drawback of relying on a single mixing mechanism. This single stirring mechanism typically consists of a unidirectional rotating shaft and blades, resulting in a limited mixing range and uniform mixing intensity, making it impossible to differentiate mixing based on the characteristics of the drugs. Because powdered drugs have a certain degree of agglomeration, they easily form clumps after being added to the tank, and their density differs from that of liquid drugs. The stirring force of a single mechanism is insufficient to quickly break up these clumps, leading to incomplete dissolution and dispersion of the powdered drugs. Some clumps adhere to the bottom or inner wall of the tank, causing not only drug waste but also affecting the stability of the drug concentration. Furthermore, a single stirring mechanism cannot achieve efficient convection and collision between the two drugs, resulting in uneven mixing of the dissolved liquid and powdered drugs, leading to localized excessively high or low concentrations. This, in turn, affects the adequacy of subsequent wastewater treatment reactions, reducing wastewater treatment efficiency and effectiveness.

[0005] To address these issues, we provide a wastewater treatment chemical preparation equipment and its usage method. Summary of the Invention

[0006] The purpose of this invention is to provide a wastewater treatment chemical mixing device and its usage method. By combining the aeration and stirring components with the cleaning disc and brush structure, the invention solves the problems of insufficient dispersion and uneven mixing of powdered chemicals and the easy deposition and adhesion of chemicals on the bottom and inner wall of the tank caused by the single mixing mechanism in existing wastewater treatment chemical mixing devices.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0008] This invention relates to a wastewater treatment chemical mixing device and its usage method, comprising a mixing tank, an aeration and stirring assembly disposed within the inner cavity of the mixing tank, a base fixedly connected to the bottom of the mixing tank, the aeration and stirring assembly comprising a rotating cylinder, the rotating cylinder being connected through to the top of the mixing tank, an exhaust hole being provided at the bottom of the rotating cylinder surface, a stirring blade being fixedly connected to the bottom of the rotating cylinder, a bearing being disposed at the top of the inner cavity of the rotating cylinder, an air inlet pipe being disposed within the inner cavity of the bearing, a motor being fixedly connected to one side of the top of the mixing tank, a main gear being fixedly connected to the output shaft of the motor, and a driven gear being fixedly connected to the top of the rotating cylinder surface.

[0009] The invention is further configured such that a limiting frame is fixedly connected to the top of the mating barrel and the side away from the motor, and the air inlet pipe is connected through a limiting hole on the surface of the limiting frame. The limiting frame is a rigid support fixed to the top of the mating barrel, and the limiting hole on it provides an additional fixing point for the air inlet pipe away from the rotating drum bearing. The air inlet pipe is introduced from an external air source, first passes through this limiting hole, and then is inserted downward into the bearing at the top of the rotating drum cavity, thus forming a two-point fixation and completely positioning the air inlet pipe.

[0010] The present invention is further configured such that a drain pipe is provided on one side of the bottom of the mixing tank, and an electromagnetic valve is provided in the inner cavity of the drain pipe. The drain pipe is a channel for discharging the mixed medicine solution, and the electromagnetic valve installed in its inner cavity acts as an electric switch, which opens or closes the pipeline by receiving an electrical signal from the control system.

[0011] The present invention is further configured such that a feeding port is provided on one side of the top of the mixing tank, and a sealing cap is provided on the top of the feeding port. The feeding port is a dedicated inlet for adding powdered medicine. The sealing cap is connected to the feeding port by a threaded connection. The port is closed during non-feeding periods, allowing for directional feeding, improving the working environment, and providing a centralized feeding point.

[0012] The present invention is further configured such that a liquid addition pipe is provided on the top of one side of the mixing tank, and a sealing plug is provided on the top of the liquid addition pipe. The liquid addition pipe is the injection interface for liquid medicine, and the sealing plug is used to seal the pipe during the interval of use, providing a direct and convenient injection channel for liquid raw materials. It can be connected to a pumping pipe or a metering container to realize quantitative addition.

[0013] The invention is further configured such that a cleaning disc is fixedly connected to the bottom of the rotating drum, and a brush is provided at the bottom of the cleaning disc. The cleaning disc rotates synchronously with the rotating drum, and the brush installed at its bottom maintains slight contact with the bottom and lower edge of the inner wall of the mixing tank. During the stirring process, the rotating brush can continuously scrape and disturb the bottom and lower edge area of ​​the inner wall of the mixing tank, effectively preventing the adhesion and caking of heavy powdered drug particles or trace sediments at this location.

[0014] The invention is further configured such that a support ring is fixedly connected to the bottom of the base, and anti-slip particles are provided on the bottom of the support ring. The support ring is the contact part between the base and the ground, and has a ring structure. Its bottom is bonded or molded with anti-slip particles with a high coefficient of friction. The anti-slip particles greatly increase the friction between the base and the ground, preventing the equipment from slipping during operation. At the same time, the anti-slip material with a certain degree of elasticity can also absorb some vibration and noise.

[0015] The invention is further configured such that a sealing connecting plate is fixedly connected to the top of the gas inlet pipe, and the surface of the sealing connecting plate is provided with an installation hole. The sealing connecting plate is a disc-shaped connector at the top of the gas inlet pipe, and its installation hole is used to pass through bolts so as to be fastened to the corresponding flange of the external gas supply pipeline. A sealing gasket can be placed in the middle.

[0016] The present invention is further configured as follows: S1, preparation work: check the equipment sealing performance and confirm that the solenoid valve of the drain pipe is in the closed state;

[0017] S2. Adding agents: Add powdered agents into the mixing tank through the feeding port, and inject liquid agents or water into the mixing tank through the liquid adding pipe;

[0018] S3, Start Mixing: Start the external air source to supply air to the air inlet pipe, and at the same time start the motor to drive the drum to rotate, so that the stirring blades can mechanically stir. The gas is discharged from the exhaust hole to form bubbles for pneumatic stirring, realizing mechanical and pneumatic synergistic mixing.

[0019] S4. Discharge the liquid medicine: After mixing evenly, turn off the motor and air source, open the solenoid valve of the drain pipe, and discharge the mixed liquid medicine.

[0020] The present invention is further configured such that, after step S4, a step of cleaning the mating tank is included: injecting cleaning water into the mating tank, starting the motor and introducing gas to make the brush at the bottom of the cleaning plate rotate and clean the bottom and inner wall of the tank, and then draining the cleaning water.

[0021] The present invention has the following beneficial effects.

[0022] 1. This invention combines a rotating stirring blade with a gas release design from the exhaust port at the bottom of the rotating drum to create a mixing environment where mechanical and pneumatic forces work synergistically. The strong shear flow generated by the stirring blade can quickly break up the initial agglomeration of powdered medicine, while the continuously rising fine bubble network penetrates the material, preventing particles from re-agglomerating and promoting their suspension and diffusion in the liquid. This dual-action mechanism solves the problems of uneven mixing and insufficient powder dissolution caused by the single stirring mechanism in the prior art, and improves the mixing efficiency and homogeneity of the medicine solution.

[0023] 2. This invention, by setting up a cleaning disc and brush linked to the rotating drum, automatically and continuously scrapes the bottom of the drum and the lower edge of the inner wall during the mixing process, effectively preventing the sedimentation and adhesion of the reagent. At the same time, the two-point fixation formed by the limit frame and the bearing connecting air pipe ensures the stability and sealing of the air supply pipeline in the dynamically rotating parts. These auxiliary structures work together to not only eliminate mixing dead corners and improve reagent utilization, but also ensure the long-term reliable operation of the aeration and stirring components, making the overall mixing effect of the equipment more thorough and the operation more stable. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0025] Figure 1 is a perspective view of a wastewater treatment chemical solution preparation device and its usage method.

[0026] Figure 2 is a cross-sectional schematic diagram of a wastewater treatment chemical preparation equipment and its usage method.

[0027] Figure 3 is a bottom view schematic diagram of a wastewater treatment chemical solution mixing equipment and its usage method.

[0028] Figure 4 is a partially enlarged schematic diagram of a wastewater treatment chemical solution mixing device and its usage method, located at point A in Figure 3.

[0029] Figure 5 is a schematic diagram of the structure of the stirring blade and cleaning disc in a wastewater treatment chemical mixing equipment and its usage method.

[0030] In the attached diagram: 1. Matching tank; 2. Aeration and stirring assembly; 3. Base; 201. Rotary drum; 202. Exhaust vent; 203. Stirring blade; 204. Bearing; 205. Air inlet pipe; 206. Motor; 207. Main gear; 208. Driven gear; 4. Limiting frame; 5. Drain pipe; 6. Feeding port; 7. Liquid inlet pipe; 8. Cleaning disc. Detailed Implementation

[0031] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] Please refer to Figures 1-5. This invention relates to a wastewater treatment chemical preparation device and its usage method.

[0033] S1. Preparation: Check the equipment's sealing and confirm that the solenoid valve of drain pipe 5 is in the closed position;

[0034] S2. Adding agents: Powdered agents are added into the mixing tank 1 through the feeding port 6, and liquid agents or water are injected into the mixing tank 1 through the liquid adding pipe 7.

[0035] S3, Start mixing: Start the external air source to supply air to the air inlet pipe 205, and at the same time start the motor 206 to drive the rotating drum 201 to rotate, so that the stirring blade 203 performs mechanical stirring, and the gas is discharged from the exhaust hole 202 to form bubbles for pneumatic stirring, realizing mechanical and pneumatic coordinated mixing.

[0036] S4. Discharge the liquid medicine: After mixing evenly, turn off the motor 206 and the air source, open the solenoid valve of the drain pipe 5, and discharge the mixed liquid medicine.

[0037] The inner cavity of the mating barrel 1 is provided with a venting and stirring assembly 2. The bottom of the mating barrel 1 is fixedly connected to a base 3. The venting and stirring assembly 2 includes a rotating cylinder 201, which is connected through to the top of the mating barrel 1. An exhaust hole 202 is provided at the bottom of the surface of the rotating cylinder 201. A stirring blade 203 is fixedly connected to the bottom of the rotating cylinder 201. A bearing 204 is provided at the top of the inner cavity of the rotating cylinder 201. An air inlet pipe 205 is provided in the inner cavity of the bearing 204. A motor 206 is fixedly connected to one side of the top of the mating barrel 1. A main gear 207 is fixedly connected to the output shaft of the motor 206. A driven gear 208 is fixedly connected to the top of the surface of the rotating cylinder 201.

[0038] Specifically, in the implementation process, the core of this wastewater treatment chemical mixing equipment lies in the efficient collaborative operation of its aeration and stirring component 2. After the motor 206 starts, it drives the rotating drum 201 to rotate within the mixing tank 1 by meshing the main gear 207 with the driven gear 208 fixed on the rotating drum 201. The stirring blades 203 at the bottom of the rotating drum 201 rotate accordingly, generating strong radial and axial shear and convection effects on the liquid and powdered chemicals in the tank, achieving preliminary mechanical mixing.

[0039] Meanwhile, an external air source continuously supplies air to the air inlet pipe 205 through a sealed connecting plate at the top. The gas is conveyed downwards through the air inlet pipe 205, passes through the bearing 204 at the top of the inner cavity of the rotating drum 201, and finally exits from the exhaust hole 202 opened on the bottom side wall of the rotating drum 201. These discharged gases form a large number of fine bubbles at the bottom of the mixing tank 1, generating upward gas disturbance and diffusion. Thus, mechanical stirring and gas stirring are carried out simultaneously: the rotating stirring blades 203 are responsible for breaking up large agglomerates of powdered medicine and promoting macroscopic convection; while the continuously rising microbubble network further refines the particles, prevents fine particles from re-agglomerating, and ensures that the medicine solution is uniformly mixed at the depth level. This dual stirring mechanism combining mechanical shearing and gas diffusion forms the basis for the efficient mixing of this equipment.

[0040] A limiting frame 4 is fixedly connected to the top of the barrel 1 and the side away from the motor 206. The air inlet pipe 205 is connected through the limiting hole on the surface of the limiting frame 4. A drain pipe 5 is provided on one side of the bottom of the barrel 1. A solenoid valve is provided in the inner cavity of the drain pipe 5. A feeding port 6 is provided on one side of the top of the barrel 1. A sealing cap is provided on the top of the feeding port 6. A liquid inlet pipe 7 is provided on the top of one side of the barrel 1. A sealing plug is provided on the top of the liquid inlet pipe 7. A cleaning disc 8 is fixedly connected to the bottom of the rotating drum 201. A brush is provided on the bottom of the cleaning disc 8. A support ring is fixedly connected to the bottom of the base 3. Anti-slip particles are provided on the bottom of the support ring. A sealing connecting disc is fixedly connected to the top of the air inlet pipe 205. An installation hole is opened on the surface of the sealing connecting disc.

[0041] Specifically: The limiting bracket 4 is a rigid support fixed to the top of the mating drum 1. Its limiting hole provides an additional fixing point for the air inlet pipe 205, away from the bearing 204 of the rotating drum 201. The air inlet pipe 205, introduced from an external air source, first passes through this limiting hole and then inserts downwards into the bearing 204 at the top of the inner cavity of the rotating drum 201, forming a two-point fixation that completely positions the air inlet pipe 205. The drain pipe 5 is the channel for discharging the mixed liquid. A solenoid valve installed inside acts as an electric switch, opening or closing the pipeline by receiving electrical signals from the control system. The feeding port 6 is a dedicated inlet for adding powdered medicine. The sealing cap is threadedly connected to the feeding port 6 for sealing. This port is closed during non-feeding periods, allowing for directional feeding, improving the working environment, and providing a centralized feeding point. The liquid injection pipe 7 is the injection interface for liquid agents. The sealing plug is used to seal the pipe during usage intervals, providing a direct and convenient injection channel for liquid raw materials. It can be connected to pumping pipes or metering containers to achieve quantitative addition. The cleaning disc 8 rotates synchronously with the rotating drum 201. The brush installed at its bottom maintains slight contact with the bottom and lower edge of the inner wall of the mixing tank 1. During the stirring process, the rotating brush can continuously scrape and disturb the bottom and lower edge of the inner wall of the mixing tank 1, effectively preventing the adhesion and caking of heavy powdery agent particles or trace sediments. The support ring is the contact part between the base 3 and the ground. It is a ring structure with high-friction coefficient anti-slip particles bonded or molded on its bottom. The anti-slip particles greatly increase the friction between the equipment and the ground, preventing slippage during operation. At the same time, the anti-slip material with a certain degree of elasticity can also absorb some vibration and noise. The sealing connection disc is a disc-shaped connector at the top of the gas inlet pipe 205. Its mounting hole is used for bolts to pass through for fastening to the corresponding flange of the external gas supply pipeline. A sealing gasket can be placed in the middle.

[0042] The working principle of this invention is as follows:

[0043] Preparation and Chemical Dosing: Check the sealing of all connections on the equipment and confirm that the solenoid valve of the drain pipe 5 is in the closed position. First, unscrew the sealing cap on the top of the feed port 6 and add the pre-weighed powdered wastewater treatment agent into the mixing tank 1 through this dedicated inlet. Then, open the sealing plug on the top of the liquid dosing pipe 7 and inject the metered liquid agent or process water through this pipe.

[0044] Equipment Start-up and Co-mixing: After confirming that the feeding port and liquid addition pipe 7 are sealed, first start the external gas source, adjusting it to a suitable pressure and flow rate, so that the gas is ready for delivery through the gas inlet pipe 205. Then, start the motor 206 fixed to the top of the mixing tank 1. The motor 206 drives the rotating drum 201 and its bottom stirring blades 203 to rotate through the meshing of the main gear 207 and the driven gear 208. At this time, the equipment enters a dual-mode co-working stage of mechanical stirring and aeration stirring. The operator can maintain this mixing state for a certain period of time according to the characteristics of the reagent and process requirements.

[0045] Process monitoring and mixing completion: During the mixing process, the equipment's operating status can be observed. The rotating stirring blades 203 and the bottom brush work continuously, while gas is evenly released from the exhaust port 202 at the bottom of the rotating drum 201, creating intense and uniform fluid turbulence. Once the liquid reaches the predetermined mixing uniformity, it is ready to enter the discharge stage.

[0046] Discharging the chemical solution and resetting the equipment: After the mixing process is completed, first stop the motor 206, then shut off the external air supply. Through the control system or manual operation, open the solenoid valve in the drain pipe 5 to completely discharge the uniformly mixed compound solution to the downstream storage tank. After the solution is drained, close the solenoid valve. The equipment can be flushed as needed or kept in standby mode for the next batch preparation, depending on production requirements.

Claims

1. A wastewater treatment chemical mixing device, comprising a mixing tank (1), characterized in that: The inner cavity of the mating barrel (1) is provided with a ventilating and stirring assembly (2), and the bottom of the mating barrel (1) is fixedly connected with a base (3); the ventilating and stirring assembly (2) includes a rotating cylinder (201), the rotating cylinder (201) is connected through to the top of the mating barrel (1), the bottom of the surface of the rotating cylinder (201) is provided with an exhaust hole (202), the bottom of the rotating cylinder (201) is fixedly connected with a stirring blade (203), the top of the inner cavity of the rotating cylinder (201) is provided with a bearing (204), the inner cavity of the bearing (204) is provided with an air inlet pipe (205), a motor (206) is fixedly connected to one side of the top of the mating barrel (1), the output shaft of the motor (206) is fixedly connected with a main gear (207), and the top of the surface of the rotating cylinder (201) is fixedly connected with a driven gear (208).

2. The wastewater treatment chemical mixing equipment according to claim 1, characterized in that: A limiting frame (4) is fixedly connected to the top of the fitting barrel (1) and the side away from the motor (206), and the air inlet pipe (205) is connected through the limiting hole on the surface of the limiting frame (4).

3. The wastewater treatment chemical mixing equipment according to claim 1, characterized in that: A drain pipe (5) is provided on one side of the bottom of the mixing tank (1), and a solenoid valve is provided in the inner cavity of the drain pipe (5).

4. The wastewater treatment chemical mixing equipment according to claim 1, characterized in that: A feeding port (6) is provided on one side of the top of the mixing tank (1), and a sealing cap is provided on the top of the feeding port (6).

5. The wastewater treatment chemical mixing equipment according to claim 1, characterized in that: A liquid addition pipe (7) is provided on the top of one side of the mixing tank (1), and a sealing plug is provided on the top of the liquid addition pipe (7).

6. The wastewater treatment chemical mixing equipment according to claim 1, characterized in that: A cleaning disc (8) is fixedly connected to the bottom of the rotating drum (201), and a brush is provided at the bottom of the cleaning disc (8).

7. The wastewater treatment chemical mixing equipment according to claim 1, characterized in that: The bottom of the base (3) is fixedly connected to a support ring, and the bottom of the support ring is provided with anti-slip particles.

8. The wastewater treatment chemical mixing equipment according to claim 1, characterized in that: A sealing connection plate is fixedly connected to the top of the air inlet pipe (205), and the surface of the sealing connection plate is provided with mounting holes.

9. A method of using a wastewater treatment chemical solution preparation equipment: characterized in that, Includes the following steps: S1. Preparation: Check the equipment's sealing and confirm that the solenoid valve of the drain pipe (5) is closed. S2. Adding agents: Add powdered agents into the mixing tank (1) through the feeding port (6), and inject liquid agents or water into the mixing tank (1) through the liquid adding pipe (7). S3. Starting mixing: Start the external air source to supply air to the air inlet pipe (205), and at the same time start the motor (206) to drive the rotating drum (201) to rotate, so that the stirring blade (203) performs mechanical stirring. The gas is discharged from the exhaust hole (202) to form bubbles for pneumatic stirring, realizing mechanical and pneumatic coordinated mixing. S4. Discharging liquid: After mixing evenly, turn off the motor (206) and the air source, open the solenoid valve of the drain pipe (5), and discharge the mixed liquid.

10. The method of use according to claim 9, characterized in that, After step S4, the process also includes cleaning the mating tank (1): injecting cleaning water into the mating tank (1), starting the motor (206) and introducing gas, causing the brush at the bottom of the cleaning disc (8) to rotate and clean the bottom and inner wall of the tank, and then draining the cleaning water.

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