Efficient mixing device for silicon flame retardant in plastic industry

Abstract

The utility model discloses an efficient mixing device for silicon flame retardants in plastic industry, which comprises a mixing reaction kettle, a plurality of raw material boxes, a processing support, a waste gas treatment structure and a plurality of feeding structures, the processing support is mounted on the mixing reaction kettle, the waste gas treatment structure is connected to the plurality of feeding structures, and the plurality of raw material boxes are mounted on the processing support. The plurality of raw material boxes are uniformly mounted on the processing support, and the plurality of feeding structures are mounted on the mixing reaction kettle, the plurality of raw material boxes and the processing support. A trumpet-shaped material gathering structure is matched to improve the mixing efficiency; according to the dynamic air pressure adjusting system, a telescopic sealing assembly is arranged in an F-shaped drainage tube, the opening degree is automatically adjusted through air pressure changes, and intelligent flow division of gas-solid two-phase flow is achieved.

Description

Technical Field

[0001] This utility model relates to the field of flame retardant production technology, specifically to a high-efficiency mixing device for silicon-based flame retardants in the plastics industry. Background Technology

[0002] Polystyrene (PS) is a linear plastic polymerized from styrene monomers, widely used in optical instruments, chemical industries, and daily necessities. Various plastic additives, such as plasticizers, heat stabilizers, and flame retardants, are required during the preparation of polystyrene plastics. Traditional flame retardants produce polystyrene plastics with low flame retardancy and poor mechanical properties. While traditional flame retardants (such as halogenated and phosphorus-based compounds) can improve flame retardancy, they significantly degrade the mechanical strength and processing flowability of the plastic. Its flame retardant mechanism relies on gas-phase free radical capture, requiring high addition levels (often exceeding 20%) to achieve the UL94 V-0 rating, leading to increased brittleness and decreased toughness. While existing technologies may already address these issues, this application aims to provide an alternative or replacement solution. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: A high-efficiency mixing device for silicone-based flame retardants in the plastics industry, comprising: a mixing reactor, multiple raw material boxes, a processing support, an exhaust gas treatment structure, and multiple feeding structures. The processing support is installed on the mixing reactor, the exhaust gas treatment structure is connected to the multiple feeding structures, the multiple raw material boxes are evenly installed on the processing support, and the multiple feeding structures are installed on the mixing reactor, the multiple raw material boxes, and the processing support. The feeding structure includes: a pair of feeding valves, a transfer box, a horn-shaped aggregating block, an electric heater, an F-type drain pipe, a limiting ring, a supporting ring, a convex telescopic cylindrical block, a telescopic spring, a pair of sealing ring rubber rings, a horizontal telescopic sealing cylindrical block, and a horizontal telescopic electric push rod.

[0004] The transfer box is installed on the processing bracket. A pair of feeding valves are respectively installed on the upper and lower ends of the transfer box, and the pair of feeding valves are respectively connected to the mixing reactor and the raw material box. The horn-shaped clamping block is installed inside the transfer box. The electric heater is installed inside the horn-shaped aggregating block. The F-shaped drain pipe is inserted inside the transfer box. The limiting ring and the supporting ring are installed inside the F-shaped drain pipe. The supporting ring is located at the top of the limiting ring. The convex telescopic cylindrical block is movably inserted between the limiting rings. The telescopic spring is connected to the convex telescopic cylindrical block and the supporting ring. A pair of sealing ring rubber rings are respectively installed on the convex telescopic cylindrical block and the limiting ring. The horizontal telescopic electric push rod is installed in the horizontal tube inside the F-shaped drain pipe. The horizontal telescopic sealing cylindrical block is installed on the pushing end of the horizontal telescopic electric push rod.

[0005] It should be noted that, as described above, the feeding structure operates a feeding valve to guide the raw materials from the inside of the raw material box to the inside of the transfer box. The raw materials are heated by the combination of a horn-shaped aggregator and an electric heater, which heats some of the substances in the raw materials, thereby reducing viscosity and triggering chemical reactions. Simultaneously, the heated waste gas is guided through an F-shaped drainage pipe. When the gas pressure reaches a certain value, the pressure compresses the convex telescopic cylindrical block, causing it to rise and fall stably along the inside of the F-shaped drainage pipe. This compresses the telescopic spring, preventing a sealing effect between the convex telescopic cylindrical block and the limiting ring. The gas is then guided through the F-shaped drainage pipe to the waste gas treatment structure. Simultaneously, the operation of a horizontal telescopic electric push rod drives the horizontal telescopic sealing cylindrical block on it to horizontally telescopically seal the F-shaped drainage pipe, thus achieving the desired drainage of waste gas or powder.

[0006] Preferably, the waste gas treatment structure includes: a spider web annular pipe, an inner filter box, an extended drainage pipe, a water-absorbing sponge, a filter box, a spider web diversion pipe, a J-shaped drainage pipe, multiple siphon plates, a neutralizing raw material box, and a feeding valve;

[0007] The spiderweb annular tube is connected to multiple F-type drain tubes. The filter box is installed at the top of the mixing reactor. The inner filter box is installed inside the filter box. The extended drain tube is inserted into the inner filter box. The water-absorbing sponge is installed inside the inner filter box. The J-type drain tube is connected to the inner filter box and the spiderweb annular tube. The spiderweb diverter tube is connected to the extended drain tube. Multiple siphon plates are evenly installed inside the filter box. The neutralization material box is installed on the filter box. The feeding valve is connected to the neutralization material box and the filter box.

[0008] It should be noted that, as described above, air is diverted from the inside of multiple F-type drainage tubes via a spider web-like annular tube, and then siphoned into the inner filter chamber via a J-type drainage tube. The absorbent sponge in the inner filter chamber prevents backflow of humid gas. Gas is diverted to the inside of the spider web-like annular tube via an extended drainage tube on the inner filter chamber, and then into the neutralization liquid inside the filter chamber via the spider web-like annular tube. Multiple siphon plates perform siphon filtration of the gas and liquid, and the feeding valve on the neutralization material tank diverts the raw material into the inner filter chamber, thus ensuring the pH value of the filtered liquid.

[0009] Preferably, the filter box is equipped with a pH sensor.

[0010] Preferably, the filter box is equipped with a pressure relief valve.

[0011] Preferably, a pressure sensor is provided on the inner side of the mixing reactor.

[0012] Preferably, a temperature sensor is provided on the inner side of the mixing reactor. Beneficial effects

[0013] This invention provides a high-efficiency mixing device for silicone-based flame retardants in the plastics industry. Compared with existing technologies, this high-efficiency mixing device for silicone-based flame retardants in the plastics industry offers the following advantages: 1) Intelligent heating and mixing: Utilizing an electric heater to precisely heat the raw materials, reducing viscosity and triggering chemical reactions, combined with a funnel-shaped polymer structure to improve mixing efficiency; 2) Dynamic air pressure regulation system: The F-shaped drain pipe has a built-in telescopic sealing component, automatically adjusting the opening based on air pressure changes to achieve intelligent separation of gas and solid two-phase flow; 3) Modular exhaust gas treatment: A spiderweb-style gas collection system combined with multi-layer filtration (absorbent sponge + neutralizing spray) ensures that exhaust gas meets emission standards; 4) Closed-loop control: Integrating pressure, temperature sensors, and pH monitoring, combined with automatic valves to achieve real-time parameter control. This design significantly improves processing efficiency, operational flexibility, and environmental performance. Attached Figure Description

[0014] Figure 1 This is a front cross-sectional view of the high-efficiency mixing device for silicon-based flame retardants in the plastics industry described in this utility model.

[0015] Figure 2 for Figure 1 A magnified view of the letter "A" in the image.

[0016] Figure 3 for Figure 1 A magnified view of the "B" in the middle.

[0017] In the diagram: 1. Mixing reactor; 2. Raw material tank; 3. Processing support; 4. Feeding valve; 5. Transfer box; 6. Horn-shaped aggregator; 7. Electric heater; 8. F-type drain pipe; 9. Limiting ring; 10. Supporting ring; 11. Convex telescopic cylindrical block; 12. Telescopic spring; 13. Sealing ring rubber ring; 14. Horizontal telescopic sealing cylindrical block; 15. Horizontal telescopic electric push rod; 16. Spider web annular tube; 17. Inner filter box; 18. Extended drain pipe; 19. Filter box; 20. Spider web diverter pipe; 21. J-type drain pipe; 22. Siphon plate; 23. Neutralization raw material tank; 24. Feeding valve. Detailed Implementation

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example

[0020] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-3As shown, the processing support 3 is installed on the mixing reactor 1, the waste gas treatment structure is connected to multiple feeding structures, multiple raw material boxes 2 are evenly installed on the processing support 3, and multiple feeding structures are installed on the mixing reactor 1, multiple raw material boxes 2, and the processing support 3. Each feeding structure includes: a pair of feeding valves 4, a transfer box 5, a horn-shaped aggregating block 6, an electric heater 7, an F-type drain pipe 8, a limiting ring 9, a supporting ring 10, a convex telescopic cylindrical block 11, a telescopic spring 12, a pair of sealing ring rubber rings 13, a horizontal telescopic sealing cylindrical block 14, and a horizontal telescopic electric push rod 15. The transfer box 5 is installed on the processing support 3. A pair of feeding valves 4 are respectively installed on the upper and lower ends of the transfer box 5, and the pair of feeding valves 4 are respectively connected to the mixing reactor 1 and the raw material box 2. The horn-shaped clamping block is installed inside the transfer box 5. The electric heater 7 is installed inside the horn-shaped aggregating block 6. The F-shaped drain pipe 8 is inserted inside the transfer box 5. The limiting ring 9 and the supporting ring 10 are installed inside the F-shaped drain pipe 8. The supporting ring 10 is located at the top of the limiting ring 9. The convex telescopic cylindrical block 11 is movably inserted between the limiting rings 9. The telescopic spring 12 is connected to the convex telescopic cylindrical block 11 and the... On the supporting ring 10, a pair of sealing ring rubber rings 13 are respectively installed on the convex telescopic cylindrical block 11 and the limiting ring 9. The horizontal telescopic electric push rod 15 is installed in the inner horizontal pipe of the F-type drainage pipe 8. The horizontal telescopic sealing cylindrical block 14 is installed on the pushing end of the horizontal telescopic electric push rod 15. The waste gas treatment structure includes: a spider web annular pipe, an inner filter box, an extended drainage pipe, a water-absorbing sponge, a filter box, a spider web diversion pipe, a J-type drainage pipe, multiple siphon plates, a neutralization raw material box 2, and a feeding valve 4. The spider web annular pipe is connected to multiple F-type drainage pipes 8. The filter box is installed at the top of the mixing reactor 1. The inner filter... The filter box is installed inside the filter box. The extended drainage pipe is inserted into the inner filter box. The absorbent sponge is installed inside the inner filter box. The J-shaped drainage pipe is connected to the inner filter box and the spider web annular pipe. The spider web diverter pipe is connected to the extended drainage pipe. Multiple siphon plates are evenly installed inside the filter box. The neutralization raw material box 2 is installed on the filter box. The feeding valve 4 is connected to the neutralization raw material box 2 and the filter box. A pH sensor is installed on the filter box. A pressure relief valve is installed on the filter box. A pressure sensor is installed inside the mixing reactor 1. A temperature sensor is installed inside the mixing reactor 1.

[0021] According to the appendix Figure 1-3It is concluded that, through the operation of the feeding valve 4 of the feeding structure, the raw materials inside the raw material box 2 are diverted to the inside of the transfer box 5. The raw materials are heated by the cooperation of the trumpet-shaped aggregator 6 and the electric heater 7, thereby heating some substances in the raw materials, reducing viscosity, and triggering chemical reactions. Simultaneously, the heated waste gas is diverted through the F-type diversion pipe 8. When the gas pressure reaches a certain value, the convex telescopic cylindrical block 11 is compressed by the gas pressure, causing it to rise and fall stably along the inside of the F-type diversion pipe 8. This compresses the telescopic spring 12, preventing a compression seal between the convex telescopic cylindrical block 11 and the limiting ring 9. The gas is then diverted through the F-type diversion pipe 8 into the waste gas treatment structure, thus diverting the waste gas. Simultaneously, water... The horizontal telescopic electric push rod 15 operates, driving the horizontal telescopic sealing cylindrical block 14 on it to horizontally telescopically seal the F-type drainage pipe 8, thereby achieving the drainage of waste gas or powder as needed; the air inside multiple F-type drainage pipes 8 is drained through the spider web annular pipe, and the air inside the spider web annular pipe is siphoned into the filter inner box through the J-type drainage pipe. The water-absorbing sponge in the filter inner box prevents the reverse drainage of humid gas. The gas is drained into the inside of the spider web annular pipe through the extended drainage pipe on the filter inner box, and the gas is drained into the neutralization liquid inside the filter box through the spider web annular pipe. Multiple siphon plates siphon filter the gas and liquid. The raw material is drained into the inside of the filter box through the feeding valve 4 on the neutralization raw material box 2, thereby ensuring the pH value of the filtered liquid.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high efficiency mixing device for silicon based flame retardants in the plastics industry, comprising: The utility model relates to a mixed reaction cauldron, a plurality of raw material boxes, processing support, waste gas treatment structure and a plurality of feeding structures, the processing support is installed on the mixed reaction cauldron, the waste gas treatment structure is connected on a plurality of feeding structures, a plurality of raw material boxes are evenly installed on the processing support, a plurality of feeding structures are installed on the mixed reaction cauldron, a plurality of raw material boxes and processing support, characterized by, the feeding structure includes a pair of feeding valves, transfer box, loudspeaker type gathering block, electric heater, F type drainage pipe, limiting ring, support ring, convex telescopic cylinder block, telescopic spring, a pair of sealing ring rubber ring, horizontal telescopic sealing cylinder block and horizontal telescopic electric push rod, The transfer box is installed on the processing support, a pair of feeding valves are installed on the upper and lower ends of the transfer box respectively, and a pair of feeding valves are connected to the mixed reaction cauldron and the raw material box respectively, the loudspeaker type gathering block is installed on the inner side of the transfer box, the electric heater is installed on the inner side of the loudspeaker type gathering block, the F type drainage pipe is inserted into the inner side of the transfer box, the limiting ring and the support ring are installed on the inner side of the F type drainage pipe, the support ring is located at the top end of the limiting ring, the convex telescopic cylinder block is movably inserted between the limiting rings, the telescopic spring is connected to the convex telescopic cylinder block and the support ring, a pair of sealing ring rubber rings are installed on the convex telescopic cylinder block and the limiting ring respectively, the horizontal telescopic electric push rod is installed in the horizontal pipe of the F type drainage pipe, and the horizontal telescopic sealing cylinder block is installed on the pushing end of the horizontal telescopic electric push rod.

2. The high-efficiency mixing device for silicon-based flame retardants in the plastic industry according to claim 1, characterized in that, The waste gas treatment structure includes a spider web ring pipe, a filter inner box, an expansion drainage pipe, a water-absorbing sponge, a filter box, a spider web shunt pipe, a J type drainage pipe, a plurality of siphon plates, a neutralizing raw material box and a feeding valve; The spider web ring pipe is connected to a plurality of F type drainage pipes, the filter box is installed at the top end of the mixed reaction cauldron, the filter inner box is installed on the inner side of the filter box, the expansion drainage pipe is inserted into the filter inner box, the water-absorbing sponge is installed on the inner side of the filter inner box, the J type drainage pipe is connected to the filter inner box and the spider web ring pipe, the spider web shunt pipe is connected to the expansion drainage pipe, a plurality of siphon plates are evenly installed on the inner side of the filter box, the neutralizing raw material box is installed on the filter box, and the feeding valve is connected to the neutralizing raw material box and the filter box.

3. The high-efficiency mixing device for silicon-based flame retardants in the plastic industry according to claim 2, characterized in that, A PH sensor is arranged on the filter box.

4. The high-efficiency mixing device for silicon-based flame retardants in the plastic industry according to claim 3, characterized in that, A pressure relief valve is arranged on the filter box.

5. The high-efficiency mixing device for silicon-based flame retardants in the plastic industry according to claim 4, characterized in that, A pressure sensor is arranged on the inner side of the mixed reaction cauldron.

6. The high-efficiency mixing device for silicon-based flame retardants in the plastic industry according to claim 5, characterized in that, A temperature sensor is arranged on the inner side of the mixed reaction cauldron.

Images