A mixing device for chemical production

Abstract

The utility model relates to a blending device for chemical production, including a blending box, a metering cylinder, and a stirring paddle. The technical key points are: a pressure cap is provided on the top of the metering cylinder, and a stirring motor connected to the stirring paddle is fixed at the center of the pressure cap. A vertical tube is provided at the center of the metering cylinder for the stirring shaft of the stirring paddle to pass through. An annular storage cavity is formed between the vertical tube and the side wall of the metering cylinder. A plurality of longitudinal partitions are evenly provided in the annular storage cavity. A unit storage cavity is formed between two adjacent longitudinal partitions. A metering bottle is built in each unit storage cavity. A plurality of pressure sensors are built in the bottom surface of the metering bottle. A discharge pipe is also provided on the bottom surface of the metering bottle. The lower end of the discharge pipe passes through the top surface of the blending box and is connected to a discharge solenoid valve. The discharge solenoid valves of each metering bottle are evenly distributed around the center line of the stirring paddle. The device is conducive to flexibly adjusting the discharge time and discharge amount of each raw material while ensuring accurate proportions. At the same time, the stirring efficiency is high and the blending effect is good.

Description

Technical Field

[0001] The utility model relates to a chemical compounding device, in particular to a mixing device for chemical production, which is suitable for the research and development compounding of chemicals such as pesticides. Background Art

[0002] Pesticides are used to prevent, eliminate or control diseases, insects, weeds and other harmful organisms that harm agriculture and forestry. According to the dosage form, they can be divided into powders, emulsions, oils and granules. Most pesticides require a blending device during research and development, and the raw materials are mixed together according to the proportion through the blending device.

[0003] CN 217120111 U discloses a mixing device for agricultural technology pesticide research and development, including a box body, a stirring mechanism is arranged inside the box body, a dustproof shell is fixedly connected to the outer wall of the box body, a worm is connected to the inner wall of one side of the dustproof shell through a bearing, a connecting rod is fixedly connected to one end of the worm, a rotating sleeve is fixedly connected to one end of the connecting rod, a worm wheel is connected to the inner wall of one side of the dustproof shell through a bearing, the worm wheel is adapted to the worm, a connecting shaft is fixedly connected to the outer wall of one side of the worm wheel, and a limit plate is fixedly connected to one end of the connecting shaft. The mixing device detects the material in the metering bottle by setting a pressure sensor, transmits the detected data to the pressure display screen, rotates the rotating sleeve, drives the metering bottle to rotate through the worm wheel and the worm, and pours the material in the metering bottle into the box body for mixing, so as to accurately control the amount of materials used and avoid imbalance. However, the following problems still exist: 1. Multiple metering bottles are flipped and unloaded simultaneously through the limit plate, which is not suitable for the production and research and development of chemicals with step-by-step reactions; 2. There are many structural components to achieve flipping and unloading; 3. Each metering bottle is arranged along the length direction of the stirring shaft of the stirring mechanism, and the stirring efficiency is low. Utility Model Content

[0004] The purpose of the utility model is to provide a mixing device for chemical production which is simple in structure and reliable in use to solve the above-mentioned problems. While ensuring accurate proportions, it is conducive to flexibly adjusting the unloading time and unloading amount of each raw material. At the same time, the stirring efficiency is high and the mixing effect is good.

[0005] The technical solution of the utility model is:

[0006] A mixing device for chemical production comprises a mixing box, a metering cylinder arranged on the top of the mixing box, and a stirring paddle arranged in the mixing box, and its technical highlights are: a pressure cover is provided on the top of the metering cylinder and a stirring motor connected to the stirring paddle is fixed at the center of the pressure cover, a vertical pipe is provided at the center of the metering cylinder for the stirring shaft of the stirring paddle to pass through, an annular storage cavity is formed between the vertical pipe and the side wall of the metering cylinder, a plurality of longitudinal partitions are evenly arranged in the annular storage cavity, and a unit storage cavity is formed between two adjacent longitudinal partitions, each unit storage cavity has a metering bottle built in, a plurality of pressure sensors are built in the bottom surface of the metering bottle, and a discharge pipe is further provided on the bottom surface of the metering bottle, the lower end of the discharge pipe passes through the top surface of the mixing box and is connected to a discharge solenoid valve, and the discharge solenoid valves of each metering bottle are evenly distributed around the center line of the stirring paddle.

[0007] The above-mentioned mixing device for chemical production has a feed port corresponding to each metering bottle on the pressure cover, a feed pump is fixed on the upper end of the feed port, the inlet of the feed pump is connected to the raw material conveying pipeline, and a feed solenoid valve is provided on the inlet pipeline of the feed pump, which is suitable for the feed control of liquid raw materials.

[0008] In the above-mentioned mixing device for chemical production, the lower part of the side wall of the metering cylinder and the metering bottle is provided with a lead through hole, and the signal line of the pressure sensor passes through the lead through hole to reach the outside of the metering cylinder.

[0009] In the above-mentioned blending device for chemical production, a visual window is provided on the side wall of the blending box for observing the blending situation in the box at any time.

[0010] In the above-mentioned blending device for chemical production, the bottom surface of the blending box is a conical surface, and a discharge pipe is provided at the lower end of the conical surface.

[0011] The beneficial effects of the utility model are:

[0012] 1. Each metering bottle measures the weight of the liquid raw materials, and then opens the discharge solenoid valve to discharge the materials according to the set process program. When the discharge volume is reached, the pressure sensor feedbacks the signal, and the discharge solenoid valve is closed, which does not affect the discharge of liquid raw materials in other metering bottles. Each metering bottle can be discharged synchronously or in steps. Under the condition of ensuring accurate ratio, it is conducive to flexibly adjusting the discharge time and discharge volume of each raw material to ensure the mixing effect.

[0013] 2. The discharge solenoid valves of each metering bottle are evenly distributed around the center line of the stirring paddle, which is conducive to the rapid and uniform stirring of the stirring paddle, significantly improving the stirring efficiency and enhancing the mixing effect.

[0014] 3. Use a pump to pump the liquid raw material into the measuring bottle, and use a pressure sensor to feedback the feed amount. When the set amount is reached, the feed solenoid valve is closed, which makes feeding convenient and does not require manual feeding, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0017] Figure 3 yes Figure 1 Middle BB section.

[0018] In the figure: 1. stirring motor, 2. suction pump, 3. feed solenoid valve, 4. mixing box, 5. stirring paddle, 6. discharge pipe, 7. visual window, 8. metering cylinder, 9. gland, 10. feed port, 11. metering bottle, 12. vertical pipe, 13. pressure sensor, 14. discharge pipe, 15. discharge solenoid valve, 16. stirring shaft, 17. lead through hole, 18. longitudinal partition. DETAILED DESCRIPTION

[0019] The utility model is described in detail according to the accompanying drawings of the specification.

[0020] like Figure 1 to Figure 3 As shown, the blending device for chemical production includes a blending box 4, a metering cylinder 8 arranged on the top of the blending box 4, and a stirring paddle 5 arranged in the blending box 4.

[0021] Among them, a pressure cap 9 is provided on the top of the metering cylinder 8, and a stirring motor 1 connected to the stirring paddle 5 is fixed at the center of the pressure cap 9. A vertical pipe 12 is provided in the center of the metering cylinder 8 for the stirring shaft 16 of the stirring paddle 5 to pass through. An annular storage cavity is formed between the vertical pipe 12 and the side wall of the metering cylinder 9, and a plurality of longitudinal partitions 18 are evenly arranged in the annular storage cavity. A unit storage cavity is formed between two adjacent longitudinal partitions 18, and a metering bottle 11 is built in each unit storage cavity. In this embodiment, a feed port 10 corresponding to each metering bottle 11 is provided on the pressure cap 9, and a feed pump 2 is fixed at the upper end of the feed port 10. The inlet of the feed pump 2 is connected to the raw material conveying pipeline, and a feed solenoid valve 3 is provided on the inlet pipeline of the feed pump 2, which is suitable for feeding control of liquid raw materials.

[0022] The bottom surface of the metering bottle 11 is built with a plurality of pressure sensors 13. In this embodiment, the lower part of the side wall of the metering cylinder 8 and the metering bottle 11 is provided with a lead through hole 17, and the signal line of the pressure sensor 13 passes through the lead through hole 17 to reach the outside of the metering cylinder 8. The bottom surface of the metering bottle 11 is also provided with a discharge pipe 14, the lower end of which passes through the top surface of the blending box 4 and is connected to a discharge solenoid valve 15. The discharge solenoid valves 15 of each metering bottle 11 are evenly distributed around the center line of the stirring paddle 5.

[0023] The side wall of the blending box 4 is provided with a viewing window 7 for observing the blending condition in the box at any time. The bottom surface of the blending box 4 is a conical surface, and a discharge pipe 6 is provided at the lower end of the conical surface.

[0024] Working principle:

[0025] 1. First, the corresponding liquid raw materials are fed into the corresponding metering bottles 11 through each liquid pump 2. At this time, the discharge solenoid valve 15 is closed, and the pressure sensors 13 at the bottom of each metering bottle 11 measure and feed back the weight signal in real time. When the set amount is reached, the feed solenoid valve 3 is half closed and the liquid pump 2 is shut down.

[0026] 2. Open all the discharge solenoid valves 15 according to the process requirements or gradually open all the discharge solenoid valves 15 according to the process requirements. The liquid raw materials in the metering bottle 11 fall into the blending box 4 through the discharge pipe 14. At the same time, start the stirring motor 1 to drive the stirring paddle 5 to evenly blend the various liquid raw materials.

[0027] The above embodiments of the present invention are described in detail, but the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A blending device for chemical production, comprising a blending box, a metering cylinder arranged on the top of the blending box, and a stirring paddle arranged in the blending box, characterized in that: A pressure cover is provided on the top of the metering cylinder and a stirring motor connected to the stirring paddle is fixed at the center of the pressure cover. A vertical pipe is provided in the center of the metering cylinder for the stirring shaft of the stirring paddle to pass through. An annular storage cavity is formed between the vertical pipe and the side wall of the metering cylinder. A plurality of longitudinal partitions are evenly arranged in the annular storage cavity. A unit storage cavity is formed between two adjacent longitudinal partitions. A metering bottle is respectively built in each unit storage cavity. A plurality of pressure sensors are built in the bottom surface of the metering bottle. A discharge pipe is also provided on the bottom surface of the metering bottle. The lower end of the discharge pipe passes through the top surface of the mixing box and is connected to a discharge solenoid valve. The discharge solenoid valves of each metering bottle are evenly distributed around the center line of the stirring paddle.

2. The mixing device for chemical production according to claim 1, characterized in that: The gland is provided with a feed port corresponding to each metering bottle, a feed pump is fixed on the upper end of the feed port, the inlet of the feed pump is connected to the raw material conveying pipeline, and a feed solenoid valve is provided on the inlet pipeline of the feed pump, which is suitable for feed control of liquid raw materials.

3. The mixing device for chemical production according to claim 1, characterized in that: The lower parts of the side walls of the metering cylinder and the metering bottle are provided with lead through holes, and the signal wire of the pressure sensor passes through the lead through holes to reach the outside of the metering cylinder.

4. The mixing device for chemical production according to claim 1, characterized in that: A visual window is provided on the side wall of the blending box.

5. The mixing device for chemical production according to claim 1, characterized in that: The bottom surface of the mixing box is a conical surface, and a discharge pipe is provided at the lower end of the conical surface.

Images