8-hydroxyquinoline raw material filtering device

Abstract

The utility model relates to an 8-hydroxyquinoline raw material filtering device in the technical field of 8-hydroxyquinoline equipment. The 8-hydroxyquinoline raw material filtering device comprises a stirring tank, and a first switch valve is arranged on a discharging pipe at the bottom of the stirring tank; the discharging end of the discharging pipe is connected with a filtering assembly, the filtering assembly comprises a spiral feeder, the spiral feeder comprises a feeding barrel and a feeding screw rod, one end of the feeding barrel is communicated with the discharging pipe, the other end of the feeding barrel is provided with a slag discharging opening, the lower barrel wall of the feeding barrel is full of filtering holes, and a material receiving box is arranged below the feeding barrel; and the material receiving box is communicated with the feeding cylinder through the filtering holes. The filter is simple and reasonable in structure and convenient to use, filter residues can be continuously cleaned out in the filtering process, the adverse effect of the filter residues on filter holes is reduced, the filter holes are prevented from being blocked, the filtering effect and the filtering efficiency are improved, and production is facilitated.

Description

Technical Field

[0001] This utility model belongs to the technical field of 8-hydroxyquinoline equipment, specifically relating to an 8-hydroxyquinoline raw material filtration device. Background Technology

[0002] 8-Hydroxyquinoline is an important organic synthesis intermediate with good biological activity. It can be used as a preservative, a stabilizer for phenolic resins and hydrogen peroxide, and has wide applications in metal element analysis, photometric analysis, and metal corrosion prevention in the metallurgical industry and analytical chemistry. The preparation steps of 8-hydroxyquinoline are as follows: quinoline and sulfur trioxide solution are mixed evenly and subjected to a sulfonation reaction. The reaction product is cooled, filtered, and dried to obtain 8-quinoline sulfonic acid. Then, 8-quinoline sulfonic acid, water, and an inorganic strong base are heated to react. The pH of the system is adjusted to neutral with dilute sulfuric acid. Finally, toluene is added for extraction, and the upper organic phase is distilled to remove the solvent, yielding 8-hydroxyquinoline. In the above steps, a filtration device is used to filter the sulfonation product after cooling. Existing filtration devices generally require uniform cleaning of the filter residue after filtration. During the filtration process, the filter residue continuously accumulates, easily clogging the filter pores, resulting in poor filtration effect and low filtration efficiency. Therefore, a filtration device for 8-hydroxyquinoline raw materials is needed to solve the above technical problems. Utility Model Content

[0003] To address the aforementioned deficiencies in the existing technology, this utility model provides an 8-hydroxyquinoline raw material filtration device, comprising a mixing tank, an inlet at the top of the mixing tank, and an outlet pipe at the bottom of the mixing tank, wherein a first switch valve is provided on the outlet pipe; a filter assembly is connected to the outlet end of the outlet pipe, the filter assembly comprising a screw feeder, the screw feeder comprising a feeding cylinder and a feeding screw that cooperate with each other, one end of the feeding screw extending out of the feeding cylinder and connected to a first stepper motor; one end of the feeding cylinder is connected to the outlet pipe, and the other end of the feeding cylinder is provided with a slag discharge port, the lower wall of the feeding cylinder is covered with filter holes, a receiving box is provided below the feeding cylinder, the receiving box is connected to the feeding cylinder through the filter holes, a drain pipe is provided on the receiving box, a second switch valve is provided on the drain pipe, the slag discharge port is connected to a slag collection box, the slag collection box is provided with a slag outlet, and a third switch valve is provided on the slag outlet. The material enters the mixing tank for reaction. After the reaction is completed, it enters the feeding cylinder through the discharge pipe. When the stepper motor rotates, the feeding screw continuously transports the impurities in the material to the slag discharge port for discharge, reducing the adverse effects of filter residue on the filter holes. The filtered material then enters the receiving box through the filter holes for later use.

[0004] Preferably, the feeding cylinder is inclined, with its bottom end connected to the discharge pipe, and the slag discharge port located at the high end of the feeding cylinder. This arrangement effectively separates the filter residue and filtrate within the feeding cylinder. The slag discharge port is positioned higher than all filter holes, and by controlling the discharge rate of the discharge pipe, filtrate discharge from the slag discharge port can be effectively prevented.

[0005] Preferably, the feeding screw includes a rotating rod and helical blades located on the rotating rod. A cleaning brush is provided on the edge of the helical blades, and the bristles of the cleaning brush contact the filter holes as the rotating rod rotates. This arrangement allows the cleaning brush to clean the filter holes while the feeding screw rotates and transports the filter residue towards the discharge port, reducing clogging and further improving the filtration effect and efficiency.

[0006] Preferably, the mixing tank is equipped with a stirring assembly, which includes a stirring rod. One end of the stirring rod extends out of the mixing tank and is connected to a stepper motor. The stirring rod, located inside the mixing tank, is equipped with stirring blades and a scraper. The scraper is fixedly connected to the stirring rod by a fixing rod and contacts the inner wall of the mixing tank. The stirring assembly not only improves reaction efficiency but also allows for scraping the inner wall of the mixing tank, preventing impurities from adhering to the inner wall.

[0007] Preferably, the outer wall of the mixing tank is equipped with a condenser coil. By continuously introducing low-temperature cooling liquid into the condenser coil to exchange heat with the material in the mixing tank, the material to be filtered after the reaction is effectively cooled, thus improving work efficiency.

[0008] This invention also includes other components that enable the normal operation of an 8-hydroxyquinoline raw material filtration device, such as control components for switch valve one, switch valve two, and switch valve three, and control components for stepper motor one and stepper motor two, all of which are conventional technologies in the field. Furthermore, devices or components not specified in this invention, such as screw feeders and condenser coils, all employ conventional technologies and equipment in the field.

[0009] Working principle: The material enters the mixing tank for reaction. After the reaction is completed, it enters the feeding cylinder through the discharge pipe. When the stepper motor rotates, the feeding screw continuously transports the impurities in the material to the slag discharge port for discharge, reducing the adverse effects of filter residue on the filter holes. The filtered material then enters the receiving box through the filter holes for later use.

[0010] The beneficial effects of this utility model are: simple and reasonable structure, convenient to use, and continuous removal of filter residue during the filtration process, which reduces the adverse effects of filter residue on filter pores, avoids filter pore blockage, improves filtration effect and filtration efficiency, and is beneficial to production. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the structure of an 8-hydroxyquinoline raw material filtration device according to Embodiment 1 of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of an 8-hydroxyquinoline raw material filtration device in Example 2.

[0014] In the diagram: 1. Mixing tank; 2. Feed inlet; 3. Stepper motor 2; 4. Scraper rod; 5. Agitator rod; 6. Agitator blade; 7. Discharge pipe; 8. Feeding cylinder; 9. Rotating rod; 10. Stepper motor 1; 11. Brush bristles; 12. Filter holes; 13. Receiving box; 14. Slag collection box; 15. Slag outlet; 16. Drain pipe; 17. Condensation coil. Detailed Implementation

[0015] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0016] Example 1

[0017] like Figure 1 As shown, this utility model provides an 8-hydroxyquinoline raw material filtration device, including a mixing tank 1, a feed inlet 2 at the top of the mixing tank 1, and a discharge pipe 7 at the bottom of the mixing tank 1. A switch valve is provided on the discharge pipe 7. A filter assembly is connected to the discharge end of the discharge pipe 7. The filter assembly includes a screw feeder, which includes a feeding cylinder 8 and a feeding screw that cooperate with each other. One end of the feeding screw extends out of the feeding cylinder 8 and is connected to a stepper motor 10. One end of the feeding cylinder 8 is connected to the discharge pipe 7, and the other end of the feeding cylinder 8 is provided with a slag discharge port. The lower wall of the feeding cylinder 8 is covered with filter holes 12. A receiving box 13 is provided below the feeding cylinder 8. The receiving box 13 is connected to the feeding cylinder 8 through the filter holes 12. A drain pipe 16 is provided on the receiving box 13, and a second switch valve is provided on the drain pipe 16. The slag discharge port is connected to a slag collection box 14, and a slag discharge port 15 is provided on the slag discharge port 15. A third switch valve is provided on the slag discharge port 15. The material enters the mixing tank 1 for reaction. After the reaction is completed, it enters the feeding cylinder 8 through the discharge pipe. The stepper motor 10 rotates, and the feeding screw continuously transports the impurities in the material to the slag discharge port for discharge, reducing the adverse effect of filter residue on the filter holes 12. The filtered material then enters the receiving box 13 through the filter holes 12 for later use.

[0018] Preferably, the feeding cylinder 8 is inclined, with its bottom end connected to the discharge pipe 7, and the slag discharge port located at the high end of the feeding cylinder 8. This arrangement effectively separates the filter residue and filtrate within the feeding cylinder 8. The slag discharge port is positioned higher than all the filter holes 12, and by controlling the discharge rate of the discharge pipe 7, filtrate discharge from the slag discharge port can be effectively prevented.

[0019] The mixing tank 1 is equipped with a stirring assembly, which includes a stirring rod 5. One end of the stirring rod 5 extends out of the mixing tank 1 and is connected to a stepper motor 3. The stirring rod 5, located inside the mixing tank 1, is equipped with stirring blades 6 and a scraper rod 4. The scraper rod 4 is fixedly connected to the stirring rod 5 by a fixing rod and contacts the inner wall of the mixing tank 1. The stirring assembly not only improves the reaction efficiency but also allows for scraping the inner wall of the mixing tank 1, preventing impurities from adhering to the inner wall.

[0020] Example 2

[0021] like Figure 2 As shown, the difference between this embodiment and Embodiment 1 is that a condenser coil 17 is provided on the outer wall of the stirring tank 1. By continuously introducing low-temperature cooling liquid into the condenser coil 17 to exchange heat with the material in the stirring tank 1, the material to be filtered after the reaction is effectively cooled, thus improving work efficiency.

[0022] Example 3

[0023] The difference between this embodiment and Embodiment 1 is that the feeding screw includes a rotating rod 9 and helical blades located on the rotating rod 9. A cleaning brush is provided on the edge of the helical blades, and the bristles 11 of the cleaning brush contact the filter holes 12 when the rotating rod 9 rotates. This arrangement allows the cleaning brush to clean the filter holes 12 while the feeding screw rotates and transports the filter residue to the discharge port, reducing clogging of the filter holes 12 and further improving the filtration effect and efficiency.

[0024] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A filtration device for 8-hydroxyquinoline raw materials, comprising a mixing tank, an inlet at the top of the mixing tank, and an outlet pipe at the bottom of the mixing tank, wherein the outlet pipe is equipped with a switch valve; characterized in that: The discharge end of the discharge pipe is connected to a filter assembly, which includes a screw feeder. The screw feeder includes a feeding cylinder and a feeding screw that cooperate with each other. One end of the feeding screw extends out of the feeding cylinder and is connected to a stepper motor. One end of the feeding cylinder is connected to the discharge pipe, and the other end of the feeding cylinder is provided with a slag discharge port. The lower wall of the feeding cylinder is covered with filter holes. A receiving box is provided below the feeding cylinder. The receiving box is connected to the feeding cylinder through the filter holes. A drain pipe is provided on the receiving box, and a switch valve is provided on the drain pipe. The slag discharge port is connected to a slag collection box, and a slag outlet is provided on the slag outlet. A switch valve is provided on the slag outlet.

2. The 8-hydroxyquinoline raw material filtration device according to claim 1, characterized in that: The feeding cylinder is inclined, the bottom end of the feeding cylinder is connected to the discharge pipe, and the slag discharge port is located at the high end of the feeding cylinder.

3. The 8-hydroxyquinoline raw material filtration device according to claim 1, characterized in that: The feeding screw includes a rotating rod and helical blades located on the rotating rod. The edge of the helical blades is provided with a cleaning brush, and the bristles of the cleaning brush contact the filter holes when the rotating rod rotates.

4. The 8-hydroxyquinoline raw material filtration device according to claim 1, characterized in that: The mixing tank is equipped with a mixing assembly, which includes a mixing rod. One end of the mixing rod extends out of the mixing tank and is connected to a stepper motor. The mixing rod located inside the mixing tank is equipped with a mixing blade and a scraper. The scraper is fixedly connected to the mixing rod through a fixing rod and contacts the inner wall of the mixing tank.

5. The 8-hydroxyquinoline raw material filtration device according to claim 1, characterized in that: The outer wall of the mixing tank is equipped with a condenser coil.

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