Automatic dosing device for kaolin slurry

Abstract

The utility model provides an automatic dosing device for kaolin slurry, which comprises a slurry storage cylinder, a medicament storage cylinder, a venturi tube proportioning mixer and a flow control component, a slurry inlet is arranged at a nozzle end of the venturi tube proportioning mixer, a mixed slurry outlet is arranged at a diffusion tube end of the venturi tube proportioning mixer, a medicament inlet is arranged at a joint of a nozzle and a diffusion tube, the slurry storage cylinder is connected with the slurry inlet, and the flow control component is connected with the medicament storage cylinder. The flow control assembly comprises a first viscometer arranged in the slurry storage barrel, a pump and a first electric control valve which are arranged at the outlet of the slurry storage barrel, a second electric control valve arranged at the outlet of the slurry storage barrel, and flow meters and a controller which are arranged at the outlet of the slurry storage barrel and the outlet of the slurry storage barrel; the input end of the controller is electrically connected with the first viscometer and the flow meter, and the output end of the controller is electrically connected with the pump, the first electric control valve and the second electric control valve respectively. According to the utility model, chemicals are accurately added according to a preset proportion, the whole chemical adding process is automatically controlled, the labor cost is saved, and the slurry treatment efficiency and accuracy are improved.

Description

Technical Field

[0001] This utility model belongs to the field of kaolin mud treatment technology, and in particular relates to an automatic dosing device for kaolin mud. Background Technology

[0002] Kaolin is one of the world's four major non-metallic minerals. It is a type of clay and clay rock mainly composed of kaolinite group clay minerals. It is widely distributed in my country, spanning both northern and southern regions, but its reserves are relatively concentrated, with the southern region having the largest reserves. Kaolinite group clay minerals are formed by the weathering of feldspar or other silicate minerals in igneous and metamorphic rocks in acidic media lacking alkali and alkaline earth metals. Kaolin has excellent properties and a wide range of applications. It possesses advantages such as high whiteness, fine particle size, strong covering power, fast adsorption speed, good acid and alkali resistance, and stable physicochemical properties. Processed kaolin products are widely used in various industries, including papermaking, architectural coatings, plastics, high-grade ceramics, and petrochemicals. In the treatment of kaolin slurry, various chemical agents are often added to improve the slurry's properties. Controlling the timing of chemical addition requires multiple short-interval additions. Traditional addition methods usually rely on manual operation, which suffers from uneven addition, large errors, low efficiency, and susceptibility to addition errors. Therefore, developing a device capable of automatically, accurately, and proportionally adding chemicals is particularly important. Chinese invention patent application CN 117735806 A discloses a smart chemical dosing system for mud treatment, used for mud flocculation and chemical dosing treatment and dewatering processes of dredged sludge, construction mud, water treatment sludge, industrial sludge, etc., but the above device is not suitable for kaolin mud treatment. Summary of the Invention

[0003] The technical problem solved by this invention is that existing methods of adding chemicals to kaolin mud suffer from uneven dosing, large errors, and low efficiency.

[0004] This utility model provides an automatic dosing device for kaolin mud, including a slurry storage tank, a chemical storage tank, a Venturi proportioner, and a flow control component. The Venturi proportioner has a slurry inlet at the nozzle end and a mixed slurry outlet at the diffuser end. A chemical inlet is located at the connection between the nozzle and the diffuser. The slurry storage tank is connected to the slurry inlet, and the chemical storage tank is connected to the chemical inlet. The flow control component includes a first viscometer installed inside the slurry storage tank, a pump and a first electric regulating valve installed at the outlet of the slurry storage tank, a second electric regulating valve installed at the outlet of the chemical storage tank, flow meters installed at the outlets of the slurry tank and the chemical storage tank, and a controller. The input end of the controller is electrically connected to the first viscometer and the flow meter, and the output end of the controller is electrically connected to the pump, the first electric regulating valve, and the second electric regulating valve, respectively.

[0005] Furthermore, the controller is used to control the opening and closing of the pump, and automatically adjusts the opening degree of the first electric regulating valve and the second electric regulating valve according to a preset ratio based on the viscosity data of the first viscometer. The flow meter is used to monitor the data of mud and reagents and transmit it back to the controller in real time.

[0006] Furthermore, the slurry storage cylinder and the medicine storage cylinder are equipped with a stirrer. The stirring assembly includes a drive motor and a stirring rod. The drive end of the drive motor is connected to the top of the stirring rod, and the stirring rod is provided with stirring blades along the circumference.

[0007] Furthermore, it also includes one-way valves, installed at the outlet of the paddle tank and the outlet of the medicine tank, to prevent the backflow of medicine or mud.

[0008] Furthermore, it also includes a first alarm, which is connected to the output of the controller. The mixing slurry outlet is equipped with a second viscometer, which is connected to the input of the controller. When the second viscometer detects that the viscosity of the mixing slurry exceeds the set value range, the controller controls the first alarm to be activated.

[0009] Furthermore, it also includes a second alarm, which is connected to the output of the controller. The slurry inlet, chemical inlet, and slurry outlet of the Venturi proportioner are all equipped with pressure sensors. If the pressure difference between the slurry outlet and the chemical inlet or slurry inlet exceeds the set value range, the controller will activate the second alarm.

[0010] This utility model has the following beneficial effects: The automatic dosing device for kaolin mud can automatically detect the properties of the mud and accurately add the agent according to the preset ratio, realizing automatic control of the entire dosing process without manual intervention, saving labor costs, improving the efficiency and accuracy of mud treatment, and stabilizing product quality. At the same time, the use of a Venturi proportioner can directly mix the agent and mud in the pipeline, replacing the separate mud + agent mixing cylinder, saving space. Moreover, the storage cylinder can be sucked into the Venturi proportioner without a pump using the Venturi principle, reducing costs. Attached Figure Description

[0011] Figure 1 A schematic diagram of the automatic dosing device for kaolin mud according to this utility model. Detailed Implementation

[0012] To clearly illustrate the technical features of this solution, specific embodiments are described below in conjunction with the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model.

[0013] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0014] like Figure 1 As shown, an automatic dosing device for kaolin mud includes a slurry storage tank 1, a chemical storage tank 2, a Venturi proportioning mixer, and a flow control component.

[0015] Both the slurry storage tank 1 and the chemical storage tank 2 are equipped with a stirrer 3 to ensure that the slurry or chemical agent remains uniform and does not settle. The stirrer 3 includes a drive motor and a stirring rod. The drive end of the drive motor is connected to the top of the stirring rod, and the stirring rod has stirring blades along its circumference. One-way valves 14 are installed at the outlets of the slurry storage tank 1 and the chemical storage tank 2 to prevent backflow of the chemical agent or slurry due to sudden equipment shutdown or pressure fluctuations in the pipeline. The nozzle 4 of the Venturi proportioner has a slurry inlet 7 for connecting to the slurry storage tank 1, the diffuser 5 of the Venturi proportioner has a mixed slurry outlet 8, and the connection between the nozzle 4 and the diffuser 5 has a chemical inlet 6 for connecting to the chemical storage tank 2. After the mud enters the Venturi proportioner through the inlet 7, it is sprayed at high speed into the diffuser 5 through the nozzle 4. A negative pressure zone is formed between the nozzle 4 and the diffuser 5. The agent is drawn into the negative pressure zone through the inlet 6 and enters the diffuser 5 at the same time as the mud. After being mixed evenly in the diffuser 5, it is discharged from the mixed slurry outlet 8 to form a mixed slurry, which then enters the next process.

[0016] The flow control component includes a first viscometer 16 installed inside the slurry storage tank 1, a pump 9 and a first electric regulating valve 10 installed at the outlet of the slurry storage tank 1, a second electric regulating valve 11 installed at the outlet of the chemical storage tank 2, flow meters 12 installed at the outlets of the slurry storage tank 1 and the chemical storage tank 2, and a controller 13. The input terminal of the controller 13 is electrically connected to the first viscometer 16 and the flow meter 12, and the output terminal of the controller 13 is electrically connected to the pump 9, the first electric regulating valve 10 and the second electric regulating valve 11, respectively. The controller 13 controls the opening and closing of the pump 9 and automatically adjusts the opening degree of the first electric regulating valve 10 and the second electric regulating valve 11 according to a preset ratio based on the viscosity data of the first viscometer 16, thereby controlling the flow rate of slurry and chemicals. The data of slurry and chemicals monitored by the flow meter 12 are transmitted back to the controller 13 in real time for the operator to view.

[0017] This device also includes a first alarm and a second alarm. The first alarm is used to warn whether the mixed slurry meets the process requirements, and the second alarm is used to warn whether the Venturi proportioner is operating normally and whether there is internal blockage. The first and second alarms are electrically connected to the output of the controller 13. A second viscometer 17 is installed at the slurry outlet 8, and the second viscometer 17 is connected to the input of the controller 13. When the second viscometer 17 detects that the viscosity of the mixed slurry exceeds the set value range, the controller 13 controls the first alarm to activate, prompting the operator to check. Pressure sensors 15 are installed at the chemical dosing port 6, the slurry inlet 7, and the slurry outlet 8 of the Venturi proportioner. If any of the two pressure differences between the slurry outlet 8 and the chemical dosing port 6 or the slurry inlet 7 exceeds the set value range, the controller 13 controls the second alarm to activate, prompting the operator to perform maintenance.

[0018] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0019] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An automatic dosing device for kaolin mud, characterized in that, Includes slurry storage tank, chemical storage tank, Venturi proportioner, and flow control components. The Venturi proportioner has a slurry inlet at the nozzle end and a mixed slurry outlet at the diffuser end. A chemical inlet is located at the connection between the nozzle and the diffuser. The slurry storage cylinder is connected to the slurry inlet, and the chemical storage cylinder is connected to the chemical inlet. The flow control assembly includes a first viscometer installed inside the slurry storage tank, a pump and a first electric regulating valve installed at the outlet of the slurry storage tank, a second electric regulating valve installed at the outlet of the chemical storage tank, flow meters installed at the outlets of the slurry tank and the chemical storage tank, and a controller. The input terminal of the controller is electrically connected to the first viscometer and the flow meter, and the output terminal of the controller is electrically connected to the pump, the first electric regulating valve and the second electric regulating valve, respectively.

2. The automatic dosing device for kaolin mud according to claim 1, characterized in that, The controller is used to control the opening and closing of the pump, and automatically adjusts the opening degree of the first electric regulating valve and the second electric regulating valve according to the viscosity data of the first viscometer according to a preset ratio. The flow meter is used to monitor the data of mud and reagents and transmit it back to the controller in real time.

3. The automatic dosing device for kaolin mud according to claim 1, characterized in that, The slurry storage cylinder and the medicine storage cylinder are equipped with a stirrer, which includes a drive motor and a stirring rod. The drive end of the drive motor is connected to the top of the stirring rod, and the stirring rod is provided with stirring blades along the circumference.

4. The automatic dosing device for kaolin mud according to claim 1, characterized in that, It also includes one-way valves, which are installed at the outlet of the slurry tank and the outlet of the chemical storage tank to prevent backflow of chemical liquid or mud.

5. The automatic dosing device for kaolin mud according to claim 1, characterized in that, It also includes a first alarm, which is connected to the output of the controller. The mixing slurry outlet is equipped with a second viscometer, which is connected to the input of the controller. When the second viscometer detects that the viscosity of the mixing slurry exceeds the set value range, the controller controls the first alarm to be activated.

6. The automatic dosing device for kaolin mud according to claim 1, characterized in that, It also includes a second alarm, which is connected to the output of the controller. The slurry inlet, chemical inlet and slurry outlet of the Venturi proportioner are all equipped with pressure sensors. If the pressure difference between the slurry outlet and the chemical inlet or slurry inlet exceeds the set value range, the controller will activate the second alarm.

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