Wet modification device for inorganic powder

Abstract

A wet modification device for inorganic powder comprises a reaction kettle (2), a stirring device (1), a powder feeding pipe (3), a liquid feeding pipe (4), an exhaust pipe (5), a heating device (6), a control system (7), a filtering device (8), a discharging port (9), a filtrate suction device (10), a filtrate barrel (11), a flash drying device (12) and a vacuumizing device (13). Through the design of the spiral stirring blades, the mixing effect of materials is enhanced, and the modification efficiency and quality are improved; the feeding system and the discharging system are accurately controlled, so that the feeding amount of powder and liquid and the separation and drying effects of modified materials are ensured, and the stability and controllability of the modification process are improved. According to the device, the stirring rotating speed, the feeding flow and the reaction temperature are accurately controlled through the control system, so that the modification reaction can be carried out under the optimal condition, and the modification effect and the product quality are further improved.

Description

Technical Field

[0001] This utility model relates to the field of inorganic powder surface modification technology, and in particular to a wet modification device for inorganic powder. Background Technology

[0002] Inorganic powder materials have wide applications in many industrial fields, such as plastics, rubber, coatings, and papermaking. In order to improve the performance of inorganic powders in these applications, such as dispersibility, compatibility, and stability, surface modification is usually required.

[0003] Wet modification is an important method for surface modification of inorganic powders. It improves the surface properties of inorganic powders by chemically or physically treating them in a liquid medium. However, existing wet modification equipment has some shortcomings, such as low modification efficiency, uneven modification effect, complex equipment structure, and high maintenance cost. Therefore, developing a high-efficiency, uniform, and simple-structured wet modification device for inorganic powders is of significant practical importance. Summary of the Invention

[0004] The purpose of this invention is to address the problems of low modification efficiency, uneven modification effect, complex equipment structure and high maintenance cost of traditional wet modification devices, and to provide a wet modification device for inorganic powders.

[0005] The technical solution of this utility model is as follows: a wet modification device for inorganic powders, comprising a reaction vessel, a discharge system, and a control system.

[0006] The reactor is a circular vertical structure with a stirring device on the central axis. A powder inlet and a powder feed pipe are located at the top of the reactor, and a flow control valve is installed on the powder feed pipe. A liquid inlet and a liquid feed pipe are located on the upper side wall of the reactor, and a flow control valve is installed on the liquid feed pipe. A heating device is located in the middle of the inner side wall of the reactor. A discharge port is located in the center of the bottom of the reactor.

[0007] The discharge system includes a filtration device, a filtrate extraction device, a vacuum extraction device, and a flash drying device. The filtration device is located at the discharge port at the bottom of the reactor. The filtration device is shaped like an inverted frustum, with its top center connected to the discharge port at the bottom of the reactor. A vacuum outlet pipe is installed on the upper side wall of the filtration device. The filtrate at the bottom of the filtration device is sent to a filtrate tank through the filtrate extraction device. The filter residue discharged from the bottom of the filtration device is sent to the flash drying device for drying.

[0008] The filtration device is used to separate the modified inorganic powder from the liquid medium; the drying device is used to dry the separated inorganic powder.

[0009] The stirring device consists of a stirring shaft, stirring blades, and a motor. The stirring shaft is driven by the motor, and the stirring blades are evenly distributed along the stirring shaft. The stirring blades are spiral in shape to enhance the mixing effect of the materials. The stirring shaft is installed at the center of the top of the reactor, and one end of the stirring shaft that extends out of the reactor is connected to the motor.

[0010] The stirring blades are arranged with alternating left-handed and right-handed spirals to further enhance the mixing effect of the materials and make the modification effect more uniform.

[0011] The powder feeding device is connected to the feed port at the top of the reactor via a pipe, and the liquid feeding device is connected to the liquid inlet on the side of the reactor via a pipe. Both the powder feeding device and the liquid feeding device are equipped with flow control valves to precisely control the feed amount of powder and liquid. The powder and liquid modifiers are modified inside the reactor.

[0012] The control system includes a motor controller, a flow controller, and a temperature controller; the motor controller controls the rotation speed of the stirring device, the flow controller controls the flow rate of the powder feeding device and the liquid feeding device, and the temperature controller controls the temperature inside the reactor to ensure that the modification reaction is carried out under suitable conditions.

[0013] The heating device is an electric heating tube, used to heat the materials in the reactor to promote the modification reaction.

[0014] The filtration device is a vacuum filtration device to improve filtration efficiency and separation effect.

[0015] The beneficial effects of this invention are as follows: The spiral stirring blade design enhances the mixing effect of materials, making the modification reaction more complete and uniform, thus improving modification efficiency and product quality. The precise control of the feeding and discharging systems ensures the optimal feed rate of powders and liquids, as well as the separation and drying effect of the modified materials, further improving the stability and controllability of the modification process. The control system enables precise control of the stirring speed, feed flow rate, and reaction temperature, allowing the modification reaction to proceed under optimal conditions, further improving the modification effect and product quality.

[0016] This utility model equipment has a simple structure, is easy to operate, has low maintenance costs, and is suitable for large-scale industrial production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a wet modification device for inorganic powders according to the present invention;

[0018] In the diagram, 1 is the stirring device; 2 is the reaction vessel; 3 is the powder feed pipe; 4 is the liquid feed pipe; 5 is the exhaust pipe; 6 is the heating device; 7 is the control system; 8 is the filtration device; 9 is the discharge port; 10 is the filtrate suction device; 11 is the filtrate tank; 12 is the flash drying device; and 13 is the vacuum device. Detailed Implementation

[0019] The specific embodiments of this utility model are as follows: Figure 1 As shown.

[0020] This embodiment describes a wet modification device for inorganic powders, including a reaction vessel 2, a discharge system, and a control system.

[0021] In this embodiment, the reactor 2 is a circular vertical structure, with a stirring device 1 installed on the central axis of the reactor; a powder inlet and a powder inlet pipe 3 are installed at the top of the reactor 2, and a flow control valve is installed on the powder inlet pipe; an exhaust pipe 5 is also installed at the top; a liquid inlet and a liquid inlet pipe 4 are installed on the upper side wall of the reactor, and a flow control valve is installed on the liquid inlet pipe 4; a heating device 6 is installed in the middle of the inner side wall of the reactor; and a discharge port 9 is installed in the center of the bottom of the reactor.

[0022] The discharge system of this embodiment includes a filtration device 8, a filtrate extraction device 10, a vacuum extraction device 13, and a flash drying device 12. The filtration device 8 is located below the discharge port 9 at the bottom of the reactor and is used to separate the modified inorganic powder from the liquid medium. The filtration device 8 is shaped like an inverted frustum, with its top center connected to the discharge port 9 at the bottom of the reactor. An exhaust pipe with a vacuum device 13 is installed on the upper side wall of the filtration device. The filtrate at the bottom of the filtration device 8 is sent to a filtrate tank 11 via the filtrate extraction device 10. The filter residue discharged from the bottom of the filtration device 8 is sent to a drying device for drying. In this embodiment, the drying device is a flash drying device 12, connected to the filtration device 8, used to dry the separated inorganic powder.

[0023] In this embodiment, the reactor 2 is equipped with a stirring device 1, which includes a stirring shaft and stirring blades. The stirring shaft is driven by a motor, and the stirring blades are evenly distributed along the stirring shaft. The stirring blades are spiral-shaped to enhance the mixing effect of the materials. In this embodiment, the stirring blades are arranged with alternating left-hand and right-hand spirals to further enhance the mixing effect of the materials and make the modification effect more uniform.

[0024] The feeding system of this embodiment includes a powder feeding device and a liquid feeding device. The powder feeding device is connected to the powder inlet at the top of the reactor through a powder feeding pipe 3; the liquid feeding device is connected to the liquid inlet on the side of the reactor through a liquid feeding pipe 4; both the powder feeding device and the liquid feeding device are equipped with flow control valves to precisely control the feeding amount of powder and liquid.

[0025] The control system 7 in this embodiment includes a motor controller, a flow controller, and a temperature controller. The motor controller is used to control the rotation speed of the stirring device, the flow controller is used to control the flow rate of the powder feeding device and the liquid feeding device, and the temperature controller is used to control the temperature inside the reactor to ensure that the modification reaction is carried out under suitable conditions.

[0026] In this embodiment, the reactor is equipped with a heating device 6, which is an electric heating tube used to heat the materials in the reactor to promote the modification reaction.

[0027] The filter device 8 in this embodiment is a vacuum filter device. The vacuum state inside the filter device is achieved by the vacuum pumping device 13 to improve the filtration efficiency and separation effect.

Claims

1. A wet modification apparatus for inorganic powders, comprising a reaction vessel, a discharge system, and a control system, characterized in that, The reactor is a circular vertical structure with a stirring device installed on the central axis. A powder inlet and a powder feed pipe are located at the top of the reactor, with a flow control valve installed on the powder feed pipe. A liquid inlet and a liquid feed pipe are located on the upper side wall of the reactor, with a flow control valve installed on the liquid feed pipe. A heating device is located in the middle of the inner side wall of the reactor. A discharge port is located at the center of the bottom of the reactor. The discharge system includes a filtration device, a filtrate extraction device, a vacuum extraction device, and a flash drying device. The filtration device is located at the discharge port at the bottom of the reactor. The filtration device is shaped like an inverted frustum, with its top center connected to the discharge port at the bottom of the reactor. A vacuum outlet pipe is installed on the upper side wall of the filtration device. The filtrate at the bottom of the filtration device is sent to a filtrate tank through the filtrate extraction device. The filter residue discharged from the bottom of the filtration device is sent to the flash drying device for drying.

2. The wet modification apparatus for inorganic powders according to claim 1, characterized in that, The stirring device consists of a stirring shaft, stirring blades, and a motor. The stirring shaft is driven by the motor, and the stirring blades are evenly distributed along the stirring shaft and are spiral in shape. The stirring shaft is installed at the center of the top of the reactor, and one end of the stirring shaft that extends out of the reactor is connected to the motor.

3. The wet modification apparatus for inorganic powders according to claim 1, characterized in that, The powder feed pipe is connected to the feed port at the top of the reactor via a pipe, and the liquid feed pipe is connected to the liquid inlet on the side of the reactor via a pipe. Both the powder feed pipe and the liquid feed pipe are equipped with flow control valves to precisely control the feed amount of powder and liquid. The powder and liquid modifiers are modified inside the reactor.

4. The wet modification apparatus for inorganic powders according to claim 1, characterized in that, The filtration device is used to separate the modified inorganic powder from the liquid medium; the drying device is used to dry the separated inorganic powder.

5. The wet modification apparatus for inorganic powders according to claim 1, characterized in that, The control system includes a motor controller, a flow controller, and a temperature controller; the motor controller controls the rotation speed of the stirring device, the flow controller controls the flow rate of the powder feed pipe and the liquid feed pipe, and the temperature controller controls the temperature inside the reactor to ensure that the modification reaction is carried out under suitable conditions.

6. The wet modification apparatus for inorganic powders according to claim 1, characterized in that, The heating device is an electric heating tube, used to heat the materials in the reactor to promote the modification reaction.

7. The wet modification apparatus for inorganic powders according to claim 2, characterized in that, The stirring blades are arranged with alternating left-handed and right-handed spirals to further enhance the mixing effect of the materials and make the modification effect more uniform.

8. The wet modification apparatus for inorganic powders according to claim 1, characterized in that, The filtration device is a vacuum filtration device to improve filtration efficiency and separation effect.

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