Closed continuous feeder for superfine powder type catalyst

By using an expansion electrorheological fluid-driven sealing assembly and a threaded lifting mechanism, the problems of sealing reliability, metering accuracy, and pipeline unobstructedness in the resin powder feeding process are solved, enabling safe and precise feeding in high-pressure reactors.

CN223980469UActive Publication Date: 2026-03-10LIAONING SIBOND NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In the existing technology, the feeding process of resin powder has problems such as poor conveying, environmental pollution, inaccurate metering and temperature control, which are particularly prominent in high-pressure reactors.

Method used

The sealing assembly, driven by an expansion current-induced fluid dynamics, combined with a threaded lifting mechanism and a multi-channel intelligent valve, enables millisecond-level adjustment of the drainage tube diameter and precise metering. It is also equipped with a knock-to-prevent blockage system to ensure sealing performance and metering accuracy.

Benefits of technology

Achieving zero leakage under pressures of 0-5MPa, with a metering accuracy of ±0.02L/min and a 40% improvement in response speed, it is suitable for automated feeding of hazardous chemicals.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223980469U_ABST
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Abstract

The closed continuous feeder comprises a reaction tank, a processing support, a plurality of raw material boxes, a plurality of inclined drainage pipes and a feeding structure, the processing support is installed on the reaction tank, the plurality of raw material boxes are evenly installed on the processing support, the inclined drainage pipes are installed on the processing support, and the feeding structure is installed on the processing support. The multiple inclined drainage pipes are inserted into the multiple raw material boxes respectively, the multiple inclined drainage pipes are installed on the machining support, and the feeding structure is connected to the multiple inclined drainage pipes and the reaction tank. A sealing assembly driven by expansion electrorheological fluid is adopted, millisecond-level adjustment of the diameter of a drainage inner rubber tube is achieved through electromagnetic control, a dynamic sealing barrier is formed in cooperation with the double-liquid-bag design, and zero leakage under the pressure of 0-5 MPa is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to closed continuous feeding technical field, concretely is a kind of closed continuous feeder for ultrafine powder type catalyst. BACKGROUND

[0002] In the field of fine chemical industry, the closed feeding of resin powder has always been a difficulty in the industry, especially because most of the current research resin powders are micron or nanometer scale, small particle size, easy to stick, easy to adsorb, easy to fly, there are disadvantages such as poor transportation and pollution of the surrounding environment during feeding, and it also affects accurate measurement. For the production of resin dissolution reaction heat release, the speed of discharging also needs to be controlled in time to prevent the temperature from rising too fast due to too fast discharging, which affects the performance of the product. Therefore, it is particularly important to invent a portable resin powder closed feeding device, and there may be technical means to solve the above problems in the prior art, but this case wants to provide an alternative or replacement technical solution. INVENTION CONTENTS

[0003] To achieve the above purpose, the utility model discloses a kind of closed continuous feeder for ultrafine powder type catalyst, comprising: reaction tank, processing support, multiple raw material boxes, multiple inclined drainage pipes and feeding structure, the processing support is installed on the reaction tank, multiple the raw material boxes are evenly installed on the processing support, multiple the inclined drainage pipes are respectively inserted in multiple the raw material boxes, and multiple the inclined drainage pipes are installed on the processing support, the feeding structure is connected to multiple the inclined drainage pipes and the reaction tank, the feeding structure includes: multiple expansion sealing components, expansion electrorheological fluid tank, expansion liquid pump, multiple channel valve and multiple shunt pipes;

[0004] Multiple the expansion sealing components are respectively connected to multiple the inclined drainage pipes and multiple the reaction tank, the expansion electrorheological fluid tank is installed on the reaction tank, the expansion liquid pump is installed on the expansion electrorheological fluid tank, the multiple channel valve is connected to the expansion liquid pump, and the multiple shunt pipes are connected to the multiple channel valve and the expansion sealing components;

[0005] It should be noted that, in the above, the raw materials are inclined and drained into the feeding structure through the inclined drainage pipe on the raw material box, the raw materials are drained into the inside of the reaction tank through the feeding structure, the electrorheological fluid inside the expansion electrorheological fluid tank is divided into the inside of multiple expansion sealing components through the multiple channel valve by the expansion liquid pump, and the expansion sealing components are used for quantitative feeding.

[0006] Preferably, the expansion sealing assembly includes: a sleeve shaft tube, a horn-shaped clamping block, a drainage inner rubber tube, two pairs of lifting threaded rods, two pairs of lifting threaded tubes, two pairs of convex lifting blocks, a lifting ring block, a lifting gear set, a lifting drive motor, and a pair of ring expansion fluid bladders.

[0007] The sleeve shaft is connected to the inclined drainage pipe and the reaction vessel. The sleeve shaft has two pairs of convex lifting grooves. The two pairs of lifting threaded rods are respectively inserted into the inner side of the two pairs of convex lifting grooves through bearings. The two pairs of lifting threaded pipes are respectively inserted into the two pairs of convex lifting blocks. The horn-shaped clamping block is installed on the inner side of the sleeve shaft. The drainage inner rubber tube is connected to the sleeve shaft and the horn-shaped clamping block. The lifting ring block is installed on the two pairs of convex lifting blocks. The lifting gear set is connected to the two pairs of lifting threaded rods. The driving end of the lifting drive motor is connected to the lifting gear set. A pair of ring expansion liquid bladders are respectively installed on the sleeve shaft and the lifting ring block, and a pair of ring expansion liquid bladders are respectively connected to a pair of diversion pipes.

[0008] It should be noted that, as described above, the raw material is guided to the inside of the inner tubing via an inclined drainage pipe. A lifting drive motor operates, driving a lifting gear assembly on its drive end. This assembly, in turn, drives two pairs of lifting threaded rods to rotate stably. These two pairs of threaded rods then drive their respective lifting threaded tubes, causing them to rise and fall stably along the two pairs of threaded rods. The two pairs of threaded tubes, in turn, drive their respective lifting ring blocks to rise and fall stably. A multi-channel valve guides the electrorheological fluid to a pair of annular expansion bladders, thereby adjusting the amount of raw material inside the inner tubing. The amount of raw material can be adjusted according to different needs. Simultaneously, the bottom of the inner tubing is sealed by the annular expansion bladders.

[0009] Preferably, each of the multiple raw material boxes is provided with a striking shaft tube, the inner side of the striking shaft tube is provided with a convex striking block and a striking spring, and the convex striking block is provided with a striking ball.

[0010] Preferably, an electromagnetic magnet is provided on the inner side of the striking shaft tube, and a striking magnet is provided on the convex striking block.

[0011] Preferably, the inner side of the sleeve shaft tube is provided with multiple tensioning electromagnets.

[0012] Preferably, the sidewall of the drainage inner tube is provided with multiple tension magnets. Beneficial effects

[0013] This invention provides a closed-loop continuous feeder for ultrafine powder catalysts. Compared with existing technologies, this closed-loop continuous feeder for ultrafine powder catalysts offers the following advantages: First, it employs an expansion current-driven fluid-fluid-driven sealing component, achieving millisecond-level adjustment of the inner tubing diameter via electromagnetic control. Combined with a double-liquid-bladder design, it forms a dynamic sealing barrier, ensuring zero leakage under pressures of 0-5 MPa. Second, its unique threaded lifting mechanism, coupled with gear transmission, achieves a feed rate adjustment accuracy of ±0.02 L / min, with a 40% improvement in response speed compared to traditional equipment. Finally, it integrates multi-channel intelligent valves and a knock-to-prevent-clogging system, enabling both the proportioning and delivery of multi-component raw materials and preventing blockage by viscous materials through electromagnetic pulses. This equipment successfully solves three major technical challenges in the feeding process of high-pressure reactors: sealing reliability, metering accuracy, and pipeline unobstructed flow. It is particularly suitable for automated dispensing scenarios for hazardous chemicals. Attached Figure Description

[0014] Figure 1 This is a front cross-sectional view of a closed continuous feeder for ultrafine powder catalysts according to the present invention.

[0015] Figure 2 This is a side cross-sectional view of a closed continuous feeder for ultrafine powder catalysts according to the present invention.

[0016] Figure 3 for Figure 2 A magnified view of the letter "A" in the image.

[0017] In the diagram: 1. Reaction vessel; 2. Processing support; 3. Raw material box; 4. Inclined drainage pipe; 5. Expansion current transformer tank; 6. Expansion pump; 7. Multi-channel valve; 8. Set shaft tube; 9. Horn-shaped clamping block; 10. Drainage inner rubber tube; 11. Lifting threaded rod; 12. Lifting threaded pipe; 13. Convex lifting block; 14. Lifting ring block; 15. Lifting gear set; 16. Lifting drive motor; 17. Ring expansion liquid bladder. 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... Figures 1-3 As shown, the processing support 2 is mounted on the reaction vessel 1, and multiple raw material boxes 3 are evenly mounted on the processing support 2. Multiple inclined drainage pipes 4 are respectively inserted into the multiple raw material boxes 3, and the multiple inclined drainage pipes 4 are mounted on the processing support 2. The feeding structure is connected to the multiple inclined drainage pipes 4 and the reaction vessel 1. The feeding structure includes: multiple expansion sealing components, an expansion electrorheological tank 5, an expansion pump 6, a multi-channel valve 7, and multiple diversion pipes; the multiple expansion sealing components are respectively connected to the multiple inclined drainage pipes 4 and the multiple reaction vessels 1, and the expansion... An electrorheological fluid tank 5 is installed on the reaction vessel 1, an expansion pump 6 is installed on the expansion electrorheological fluid tank 5, a multi-channel valve 7 is connected to the expansion pump 6, and multiple diversion pipes are connected to the multi-channel valve 7 and the expansion sealing assembly. The expansion sealing assembly includes: a sleeve shaft tube 8, a horn-shaped clamping block 9, a drainage inner rubber tube 10, two pairs of lifting threaded rods 11, two pairs of lifting threaded tubes 12, two pairs of convex lifting blocks 13, a lifting ring block 14, a lifting gear set 15, a lifting drive motor 16, and a pair of ring-shaped expansion bladders 17. The sleeve shaft tube 8 is connected to the inclined drainage pipe 4. On the reaction vessel 1, the sleeve shaft tube 8 has two pairs of convex lifting grooves. Two pairs of lifting threaded rods 11 are respectively inserted into the inner sides of the two pairs of convex lifting grooves via bearings. Two pairs of lifting threaded tubes 12 are respectively inserted into the two pairs of convex lifting blocks 13. The horn-shaped clamping block 9 is installed inside the sleeve shaft tube 8. The inner drainage tube 10 is connected to the sleeve shaft tube 8 and the horn-shaped clamping block 9. The lifting ring block 14 is installed on the two pairs of convex lifting blocks 13. The lifting gear set 15 is connected to the two pairs of lifting threaded rods 11. The driving end of the lifting drive motor 16 is connected to... On the lifting gear assembly 15, a pair of annular expansion bladders 17 are respectively installed on the sleeve shaft tube 8 and the lifting annular block 14, and the pair of annular expansion bladders 17 are respectively connected to a pair of diverter pipes; multiple raw material boxes 3 are provided with striking shaft tubes, the inner side of the striking shaft tubes is provided with convex striking blocks and striking springs, and the convex striking blocks are provided with striking balls; the inner side of the striking shaft tubes is provided with electromagnetic adsorption magnets, and the convex striking blocks are provided with striking adsorption magnets; multiple tensioning electromagnets are provided on the inner side of the sleeve shaft tube 8; multiple tensioning magnets are provided on the side wall of the drainage inner tube 10.

[0021] According to the appendix Figures 1-3It is concluded that the raw materials are inclinedly guided into the feeding structure through the inclined drainage pipe 4 on the raw material tank 3, and then guided into the inner side of the reaction tank 1 through the feeding structure. The expansion pump 6 diverts the electrorheological fluid inside the expansion electrorheological fluid tank 5 through the multi-channel valve 7 to the inner side of multiple expansion sealing components, and quantitative feeding is performed through the expansion sealing components. The raw materials are guided into the inner side of the drainage hose 10 through the inclined drainage pipe 4, and the lifting drive motor 16 runs, driving the lifting gear set 15 on the drive end of the lifting drive motor 16 to run, driving the two pairs of lifting gears on it to run. The threaded rod 11 rotates stably, and the two pairs of lifting threaded rods 11 drive the lifting threaded tubes 12 on them respectively, so that the two pairs of lifting threaded tubes 12 move up and down stably along the two pairs of lifting threaded rods 11. The two pairs of lifting threaded tubes 12 drive the lifting ring blocks 14 on them to move up and down stably. The electrorheological fluid is diverted to a pair of ring expansion bladders 17 through the multi-channel valve 7, thereby adjusting the raw material inside the inner tube 10. The amount of raw material can be adjusted according to different needs. At the same time, the bottom end of the inner tube 10 is sealed through the ring expansion bladder 17 at the bottom.

[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 closed continuous feeder for ultrafine powder type catalysts, comprising: The utility model relates to a reaction tank, processing support, multiple raw material boxes, multiple inclined drainage pipes and loading structure, the processing support is installed on the reaction tank, multiple raw material boxes are evenly installed on the processing support, multiple inclined drainage pipes are respectively inserted in multiple raw material boxes, and multiple inclined drainage pipes are installed on the processing support, and the loading structure is connected to multiple inclined drainage pipes and the reaction tank, characterized by, the loading structure includes: multiple expansion sealing assemblies, expansion electrorheological fluid tank, expansion liquid pump, multiple channel valves and multiple shunt pipes. Multiple expansion sealing assemblies are respectively connected to multiple inclined drainage pipes and multiple reaction tanks, the expansion electrorheological fluid tank is installed on the reaction tank, the expansion liquid pump is installed on the expansion electrorheological fluid tank, the multiple channel valves are connected to the expansion liquid pump, and the multiple shunt pipes are connected to the multiple channel valves and the expansion sealing assemblies.

2. A closed continuous feeder for ultrafine powder type catalyst according to claim 1, wherein The expansion sealing assembly includes: a sleeved shaft pipe, a horn-shaped clamping block, a drainage inner rubber tube, two pairs of lifting threaded rods, two pairs of lifting threaded pipes, two pairs of convex lifting blocks, a lifting ring block, a lifting gear set, a lifting drive machine, and a pair of ring expansion liquid capsules. The sleeved shaft pipe is connected to the inclined drainage pipe and the reaction tank, two pairs of convex lifting grooves are formed in the sleeved shaft pipe, two pairs of the lifting threaded rods are respectively inserted into the inner sides of the two pairs of convex lifting grooves through bearings, two pairs of the lifting threaded pipes are respectively inserted into the two pairs of convex lifting blocks, the horn-shaped clamping block is installed on the inner side of the sleeved shaft pipe, the drainage inner rubber tube is connected to the sleeved shaft pipe and the horn-shaped clamping block, the lifting ring block is installed on the two pairs of convex lifting blocks, the lifting gear set is connected to the two pairs of lifting threaded rods, the lifting drive machine is connected to the lifting gear set, and a pair of the ring expansion liquid capsules are respectively installed on the sleeved shaft pipe and the lifting ring block.

3. A closed continuous feeder for ultrafine powder type catalyst according to claim 2, wherein Multiple raw material boxes are provided with a knocking shaft pipe, the inner side of the knocking shaft pipe is provided with a convex knocking block and a knocking spring, and the convex knocking block is provided with a knocking ball.

4. A closed continuous feeder for ultrafine powder type catalyst according to claim 3, wherein The inner side of the knocking shaft pipe is provided with an electromagnetic adsorption magnet, and the convex knocking block is provided with a knocking adsorption magnet.

5. A closed continuous feeder for ultrafine powder type catalyst according to claim 4, wherein The inner side of the sleeved shaft pipe is provided with multiple elastic magnets.

6. A closed continuous feeder for ultrafine powder type catalyst according to claim 5, wherein The side wall of the drainage inner rubber tube is provided with multiple elastic magnets.