A laboratory electromagnetic reaction kettle for surface treatment of magnetic powder

Abstract

The utility model discloses a laboratory electromagnetic reaction cauldron for magnetism powder surface treatment, including frame, reaction cauldron and electromagnetic coil, the frame is fixedly installed reaction cauldron on, the reaction cauldron includes cauldron body, and the inner wall of cauldron body is equipped with a plurality of lugs, the surface fixed mounting of cauldron body has stirring motor, and the output of stirring motor is fixedly connected with stirring shaft, and stirring shaft stretches into cauldron body, and the stirring shaft that stretches into cauldron body is fixed with a plurality of dispersion disc, the electromagnetic coil is fixed on the frame, and surrounds the outer wall of cauldron body. This reaction cauldron is through electromagnetic coil external, guarantee reagent cleaning effective adsorption magnetism powder, avoid the cable outer coating material of electromagnetic coil simultaneously and be swollen corrosion, cause the security hidden danger or influence magnetism powder's surface treatment. Through setting lug, material can naturally fall after touching, form up and down flow, cooperate dispersion disc and can obtain more effective mixing effect.

Description

Technical Field

[0001] This utility model relates to the field of laboratory reaction vessels, specifically to a laboratory electromagnetic reaction vessel for surface treatment of magnetic powder. Background Technology

[0002] Laboratory reactors are core equipment in fields such as chemistry, biology, and pharmaceuticals. They allow for precise control of reaction conditions such as temperature, pressure, and stirring speed, providing a stable experimental environment for scientific research and production.

[0003] Magnetorheological fluids for dampers typically consist of micron-sized magnetic powder, surface treatment reagents, dispersants, thickeners, and carrier liquids. To achieve better stability, the magnetic powder usually requires surface treatment, with common methods including mechanical grinding, acid washing, and ultrasonic vibration. However, due to the small particle size and high density of the magnetic powder, acid washing in a conventional reactor presents challenges such as difficulty in dispersion and the accumulation of large amounts of liquid between the magnetic powder particles after mixing, which can negatively impact product performance. Utility Model Content

[0004] To address the shortcomings of existing methods, this invention provides a laboratory electromagnetic reactor for surface treatment of magnetic powders. By placing the electromagnetic coil externally, it ensures effective adsorption of magnetic powders after reagent cleaning, while simultaneously preventing the outer sheathing material of the electromagnetic coil's cable from swelling and corroding, thus avoiding safety hazards or affecting the surface treatment of the magnetic powders.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A laboratory electromagnetic reactor for surface treatment of magnetic powder includes a frame, a reactor, and an electromagnetic coil; the reaction structure is fixedly mounted on the frame.

[0007] The reactor includes a vessel body, the inner wall of which is provided with several protrusions; a stirring motor is fixedly installed on the upper surface of the vessel body, the output end of the motor is fixedly connected to a stirring shaft, the stirring shaft extends into the vessel body, and several dispersion discs are fixed on the stirring shaft extending into the vessel body.

[0008] The electromagnetic coil is fixed to the frame and surrounds the outer wall of the vessel.

[0009] Furthermore, the reaction vessel also includes a sample inlet funnel, which is fixed to the upper surface of the vessel body and communicates with the interior of the vessel body;

[0010] The sample inlet of the sample funnel is equipped with a top cover, and the top cover is equipped with a sealing ring. The sealing ring is a fluororubber sealing ring, which is used to seal the top cover with the sample inlet of the sample funnel to prevent the volatilization of volatile acid.

[0011] Furthermore, the vessel body and the sample inlet funnel are made of glass, thus making them resistant to acid corrosion.

[0012] Furthermore, the bottom of the vessel is funnel-shaped and connected to a discharge port, which is equipped with a sealing ring, which is a fluororubber sealing ring.

[0013] Furthermore, the reactor also includes an exhaust port, which is connected to the interior of the reactor body. The exhaust port is made of glass to prevent corrosion when the reaction gas is discharged.

[0014] Furthermore, the dispersion disk is a butterfly-shaped dispersion disk, which has a good dispersion effect.

[0015] Furthermore, the stirring shaft and dispersing disc are made of polytetrafluoroethylene, thus making them resistant to acid corrosion.

[0016] Furthermore, there are three dispersion discs to achieve a better dispersion effect.

[0017] Furthermore, the volume of the vessel is 3-10L to avoid excessive reaction gas that would be difficult to process and collect.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The inner wall of the vessel is equipped with protrusions, which allow materials to fall naturally upon contact, creating an up-and-down flow. This, combined with the dispersion disc, can achieve a more effective mixing effect.

[0020] The external placement of the electromagnetic coil ensures that the magnetic powder is effectively adsorbed after the reagent is cleaned, and also prevents the cable outer sheath material from swelling and corroding, which could cause safety hazards or affect the surface treatment of the magnetic particles.

[0021] The stirring shaft and dispersing disc are made of PTFE material, which ensures that the high-density magnetic powder can be effectively dispersed, while avoiding acid corrosion of the stirring shaft and dispersing disc. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a specific structure of the device of this utility model;

[0023] Wherein: 1 is the frame, 2 is the sample inlet funnel, 3 is the stirring motor, 4 is the exhaust port, 5 is the stirring shaft, 6 is the electromagnetic coil, 7 is the protrusion, 8 is the dispersion disc, and 9 is the discharge port. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] like Figure 1 The illustration shows a specific embodiment of a laboratory electromagnetic reactor for surface treatment according to this utility model, comprising a frame 1, an electromagnetic coil 6, and a reactor. The electromagnetic coil 6 is wound around the crossbeam of the frame 1, and its density can be adjusted according to the amount of magnetic powder to be processed. The reactor is fixed to the frame 1 and includes a reactor body. The upper surface of the reactor body is provided with a sample inlet funnel 2, a stirring motor 3, and an exhaust port 4. The sample inlet funnel 2 is equipped with a top cover, and a sealing ring is used to seal the top cover and the sample inlet funnel 2 to prevent the volatilization of volatile acids. The stirring motor 3 is directly connected to a stirring shaft 5, and the stirring shaft 5 is equipped with three dispersion discs 8. The interior of the reactor body is provided with protrusions 7 for the material to form an upward and downward reflux. The bottom of the reactor body is funnel-shaped, with a discharge port 9 at the lower end, which is equipped with a sealing ring to prevent liquid leakage.

[0027] In this embodiment, the frame 1 is made of stainless steel 304, the vessel body, the sample inlet funnel 2 and the exhaust port 4 are made of glass, the stirring motor 3 is a variable frequency motor, the stirring shaft 5 and the dispersion disk 8 are made of polytetrafluoroethylene, and the dispersion disk 8 is a butterfly-shaped dispersion disk; the sealing ring between the sample inlet funnel 2 and the discharge port 9 is made of fluororubber.

[0028] Example 2:

[0029] According to the device provided in Example 1, when using it, open the top cover of the sample inlet funnel 2, pour in the prepared acid washing solution, then add a specific proportion of magnetic powder using the differential method, close the top cover, connect the collection device or discharge pipe to the exhaust port 4 according to the amount of hydrogen generated, turn on the stirring motor 3, and mix and react for a certain period of time.

[0030] After acid washing, turn off the stirring motor 3 and energize the electromagnetic coil 6 to allow the magnetic powder to be directly adsorbed onto the inner wall of the reactor. Open the discharge port 9 to discharge the liquid. Then close the discharge port 9, de-energize the electromagnetic coil 6, open the top cover of the sample funnel 2, add the cleaning solution, close the top cover of the sample funnel 2, and turn on the stirring motor 3 to wash the magnetic powder. After washing for a certain period of time, turn off the stirring motor 3, energize the electromagnetic coil 6 to adsorb the magnetic powder, and open the discharge port 9 to release the washing solution. Repeat the above washing operation as needed until the product is qualified. Then, release the last washing solution along with the magnetic powder from the discharge port 9. Collect the magnetic powder using the magnetic tilting method, place it in a vacuum oven for heating and drying, and you can obtain the processed magnetic particles.

[0031] 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 laboratory electromagnetic reactor for surface treatment of magnetic powder, characterized in that, Includes a frame (1), a reaction vessel, and an electromagnetic coil (6); The reaction vessel is fixedly mounted on the frame (1); The reactor includes a vessel body, and the inner wall of the vessel body is provided with several protrusions (7); a stirring motor (3) is fixedly installed on the upper surface of the vessel body, and a stirring shaft (5) is fixedly connected to the output end of the stirring motor (3). The stirring shaft (5) extends into the vessel body, and several dispersion discs (8) are fixed on the stirring shaft (5) extending into the vessel body. The electromagnetic coil (6) is fixed to the frame (1) and surrounds the outer wall of the vessel.

2. The laboratory electromagnetic reactor for surface treatment of magnetic powder according to claim 1, characterized in that, The reactor also includes a sample inlet funnel (2), which is fixed to the upper surface of the reactor body and communicates with the interior of the reactor body; The sample inlet of the sample funnel (2) is provided with a top cover, and the top cover is provided with a sealing ring, which is a fluororubber sealing ring.

3. The laboratory electromagnetic reactor for surface treatment of magnetic powder according to claim 2, characterized in that, The vessel body and the sample inlet funnel (2) are made of glass.

4. The laboratory electromagnetic reactor for surface treatment of magnetic powder according to claim 1, characterized in that, The bottom of the vessel is funnel-shaped and connected to a discharge port (9). The discharge port (9) is equipped with a sealing ring, which is a fluororubber sealing ring.

5. The laboratory electromagnetic reactor for surface treatment of magnetic powder according to claim 1, characterized in that, The reactor also includes an exhaust port (4), which is connected to the interior of the reactor body and is made of glass.

6. The laboratory electromagnetic reactor for surface treatment of magnetic powder according to claim 1, characterized in that, The dispersion disk (8) is a butterfly-shaped dispersion disk.

7. The laboratory electromagnetic reactor for surface treatment of magnetic powder according to claim 1, characterized in that, The stirring shaft (5) and the dispersing disk (8) are made of polytetrafluoroethylene.

8. The laboratory electromagnetic reactor for surface treatment of magnetic powder according to claim 1, characterized in that, There are 3 dispersing disks (8).

9. The laboratory electromagnetic reactor for surface treatment of magnetic powder according to claim 1, characterized in that, The volume of the vessel is 3-10L.

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