CN215464861U - Electrolytic manganese metal powder magnetic grinding machine - Google Patents
Electrolytic manganese metal powder magnetic grinding machine Download PDFInfo
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- CN215464861U CN215464861U CN202121102245.7U CN202121102245U CN215464861U CN 215464861 U CN215464861 U CN 215464861U CN 202121102245 U CN202121102245 U CN 202121102245U CN 215464861 U CN215464861 U CN 215464861U
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Abstract
An electrolytic manganese metal powder magnetic grinding machine comprises a grinding chamber, a grinding chamber bracket, an electromagnetic coil, a micro powder pipe and a material conveying air pump. Grinding chamber upper portion is provided with the grinding medium entry, and discharge gate valve, and the discharge gate valve links to each other with the miropowder pipe, sets up feeding three-way valve, sampling three-way valve, finished product three-way valve in the middle of the miropowder pipe, and feeding three-way valve links to each other with the feed inlet, and the sampling three-way valve links to each other with the sampling gate, and the finished product three-way valve links to each other with the finished product discharge gate. The material conveying air pump is connected with a powder inlet valve at the lower part of the grinding chamber. The grinding chamber shell is provided with a cooling water jacket, and an electromagnetic coil is arranged on the outer side of the cooling water jacket.
Description
Technical Field
The utility model relates to a grinding method and a grinding device, in particular to an electrolytic manganese metal powder magnetic grinding machine.
Background
At present, the industrial production of trimanganese tetroxide mostly adopts a suspension oxidation method, electrolytic manganese metal sheets are used as raw materials, the electrolytic manganese metal sheets are ground into powder, the powder is put into deionized water according to a certain proportion, an ammonium salt catalyst is added, air or oxygen is blown in by an air pump, and high-purity trimanganese tetroxide is obtained after reaction for a plurality of hours. The manganous-manganic oxide produced by the method has low impurity content and is widely used for producing soft magnetic components.
The electrolytic manganese metal sheet is ground into electrolytic manganese metal powder by adopting a high-pressure roller mill, a vertical spiral ball mill and a horizontal ball mill. The grinding medium adopted by the vertical spiral ball mill and the horizontal ball mill can be corundum balls or chromium-containing steel balls, and the corundum balls can increase a large amount of silicon and are rarely used. Chromium-containing steel balls are used to add iron and a small amount of chromium to the trimanganese tetroxide product due to the wear of the ball milling media. The production of electrolytic manganese metal powders with roller mills also increases iron and small amounts of chromium. The increased iron, especially the increased chromium, in the impurity content of the trimanganese tetroxide product can greatly reduce the magnetic performance of the soft magnetic component which takes the trimanganese tetroxide as the raw material.
Disclosure of Invention
Aiming at the defects, the utility model provides the electrolytic manganese metal powder magnetic grinding machine to achieve the aim of reducing impurities of iron and chromium in the trimanganese tetroxide product.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model consists of a grinding chamber, a grinding chamber bracket, an electromagnetic coil, a micro powder pipe and a material conveying air pump. Grinding chamber upper portion is provided with the grinding medium entry, and discharge gate valve, and the discharge gate valve links to each other with the miropowder pipe, sets up feeding three-way valve, sampling three-way valve, finished product three-way valve in the middle of the miropowder pipe, and feeding three-way valve links to each other with the feed inlet, and the sampling three-way valve links to each other with the sampling gate, and the finished product three-way valve links to each other with the finished product discharge gate. The material conveying air pump is connected with a powder inlet valve at the lower part of the grinding chamber. The grinding chamber shell is provided with a cooling water jacket, and an electromagnetic coil is arranged on the outer side of the cooling water jacket.
The grinding medium is chromium-containing steel balls.
Firstly, pretreating electrolytic manganese metal sheets by using a high-pressure roller mill, crushing the electrolytic manganese metal sheets and screening the electrolytic manganese metal sheets until the material degree is less than 20 meshes of electrolytic manganese metal particles.
Grinding media is fed into the grinding chamber from a grinding media inlet. Electrolytic manganese metal particles with the particle size of less than 20 meshes are added into the feed inlet. And opening a feeding three-way valve, a powder inlet valve and a material conveying air pump, and feeding the electrolytic manganese metal particles into the grinding chamber through the micro powder pipe. And starting and controlling the electromagnetic coil to enable the grinding medium to form a grinding area in the grinding chamber, and grinding the electrolytic manganese metal particles. The electrolytic manganese metal particles are controlled to pass through the grinding zone of the grinding chamber by a material conveying air pump, and the electrolytic manganese metal particles are crushed to be finer when passing through the grinding zone due to mutual collision of grinding media in the grinding zone. The grinding chamber is surrounded by an electromagnetic coil and a cooling water jacket for cooling heat generated when the electrolytic manganese metal particles are ground by the grinding media. And after grinding for a period of time, opening the sampling three-way valve, sampling the electrolytic manganese metal powder through the sampling port, and closing the sampling three-way valve after sampling. When the analysis result of the sample accords with the granularity of the electrolytic manganese metal powder for the trimanganese tetroxide, the electromagnetic coil is kept to maintain the magnetism in one direction, the grinding medium and the chromium-containing scrap iron generated by grinding are adsorbed on the wall of the grinding chamber, the finished product three-way valve is opened, and the finished product of the electrolytic manganese metal powder is output. And finally, closing the electromagnetic coil, discharging the grinding medium and the chromium-containing scrap iron from the grinding medium outlet, and then carrying out the next grinding operation.
Preferably, the chromium-containing steel balls are in a certain proportion according to different diameters, the steel ball with the diameter of 20mm accounts for 20-50% of the steel ball by weight, the steel ball with the diameter of 15mm accounts for 10-30% of the steel ball by weight, and the steel ball with the diameter of 10mm accounts for 30-80% of the steel ball by weight.
The electrolytic manganese metal powder magnetic grinding machine provided by the utility model has the following beneficial effects:
(1) according to the utility model, the grinding medium and chromium-containing scrap iron generated by grinding can be adsorbed onto the wall of the grinding chamber by using the electromagnetic coil, so that impurities of iron and chromium in electrolytic manganese metal powder for producing manganous-manganic oxide are reduced;
(2) according to the utility model, the distribution of the electromagnetic coils, the current intensity of the middle and lower parts of the electromagnetic coils and the material conveying air pump can be controlled, so that the thicker particles of the electrolytic manganese metal powder are crushed at the lower part of the grinding area of the grinding chamber, and the thinner particles are crushed at the upper part of the grinding area, thereby improving the crushing efficiency;
(3) the utility model has simple structure, low cost and easy popularization.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1-grinding chamber, 2-grinding medium inlet, 3-discharging port valve, 4-micropowder pipe, 5-feeding port, 6-electrolytic manganese metal particles, 7-feeding three-way valve, 8-sampling three-way valve, 9-sampling port, 10-finished product discharging port, 11-finished product three-way valve, 12-material conveying air pump, 13-grinding chamber support, 14-grinding medium outlet, 15-grinding medium, 16-grinding zone, 17-electromagnetic coil, 18-cooling water jacket and 19-powder inlet valve.
Detailed Description
Example (b):
the utility model consists of a grinding chamber 1, a grinding chamber bracket 13, an electromagnetic coil 17, a micro powder pipe 4 and a material conveying air pump 12. Grinding chamber 1 upper portion is provided with grinding medium entry 2, and discharge gate valve 3 links to each other with miropowder pipe 4, sets up feeding three-way valve 7, sampling three-way valve 8, finished product three-way valve 11 in the middle of miropowder pipe 4, and feeding three-way valve 7 links to each other with feed inlet 5, and sampling three-way valve 8 links to each other with sampling mouth 9, and finished product three-way valve 11 links to each other with finished product discharge gate 10. The feed delivery air pump 12 is connected to a powder inlet valve 19 at the lower part of the grinding chamber 1. A cooling water jacket 18 is arranged on the outer shell of the grinding chamber 1, and an electromagnetic coil 17 is arranged on the outer side of the cooling water jacket 18.
Chromium-containing steel balls are used as the grinding media 15. The chromium-containing steel balls are in a certain proportion according to different diameters, the steel ball with the diameter of 20mm accounts for 20-22% of the steel ball by weight, the steel ball with the diameter of 15mm accounts for 25-28% of the steel ball by weight, and the steel ball with the diameter of 10mm accounts for 50-55% of the steel ball by weight.
Firstly, pretreating electrolytic manganese metal sheets by using a high-pressure roller mill, crushing the electrolytic manganese metal sheets and screening the electrolytic manganese metal sheets until the granularity of the electrolytic manganese metal particles is less than 20 meshes and the electrolytic manganese metal particles are 6.
Grinding media 15 is fed into grinding chamber 1 from grinding media inlet 2. Electrolytic manganese metal particles 6 with a particle size of less than 20 meshes are added into the feed port 5. And opening a feeding three-way valve 7, a powder inlet valve 19 and a material conveying air pump 12, and feeding the electrolytic manganese metal particles 6 into the grinding chamber 1 through the micro powder pipe 4. The electromagnetic coil 17 is started and controlled to enable the grinding media 15 to form a grinding area in the grinding chamber 1, and the electrolytic manganese metal particles 6 are ground. The passage of the electrolytic manganese metal particles 6 through the milling zone 16 of the milling chamber 1 is controlled by the feed gas pump 12, and the electrolytic manganese metal particles 6 are crushed to become finer as they pass through the milling zone 16 due to the collision of the milling media 15 in the milling zone 16. The grinding chamber 1 is surrounded by an electromagnetic coil 17 and a cooling water jacket 18 for cooling heat generated when the electrolytic manganese metal particles 6 are ground by the grinding media 15. After grinding for a period of time, the sampling three-way valve 8 is opened, the electrolytic manganese metal powder is sampled through the sampling port 9, and after sampling, the sampling three-way valve 8 is closed. When the analysis result of the sample conforms to the granularity of the electrolytic manganese metal powder for manganous-manganic oxide, the electromagnetic coil 17 is kept to maintain the magnetism in one direction, so that the grinding medium 15 and the chromium-containing iron filings generated by grinding are adsorbed on the wall of the grinding chamber 1, the finished product three-way valve 11 is opened, and the finished product of the electrolytic manganese metal powder is output. Finally, the solenoid 17 is turned off, the grinding media 15 and the chromium-containing iron pieces are discharged from the grinding media outlet 14 through the grinding media outlet 14, and then, the next grinding work is performed.
Claims (1)
1. An electrolytic manganese metal powder magnetic mill, characterized by comprising: the grinding chamber, the grinding chamber bracket, the electromagnetic coil, the micro powder pipe and the material conveying air pump; the upper part of the grinding chamber is provided with a grinding medium inlet and a discharge port valve, and the discharge port valve is connected with the micro powder pipe; the middle of the micro powder pipe is provided with a feeding three-way valve, a sampling three-way valve and a finished product three-way valve, the feeding three-way valve is connected with the feeding hole, the sampling three-way valve is connected with the sampling port, and the finished product three-way valve is connected with a finished product discharging hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121102245.7U CN215464861U (en) | 2021-05-21 | 2021-05-21 | Electrolytic manganese metal powder magnetic grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121102245.7U CN215464861U (en) | 2021-05-21 | 2021-05-21 | Electrolytic manganese metal powder magnetic grinding machine |
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| Publication Number | Publication Date |
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| CN215464861U true CN215464861U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121102245.7U Active CN215464861U (en) | 2021-05-21 | 2021-05-21 | Electrolytic manganese metal powder magnetic grinding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115283113A (en) * | 2022-03-24 | 2022-11-04 | 白银新银鑫工贸有限公司 | Feed additive and preparation process thereof |
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2021
- 2021-05-21 CN CN202121102245.7U patent/CN215464861U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115283113A (en) * | 2022-03-24 | 2022-11-04 | 白银新银鑫工贸有限公司 | Feed additive and preparation process thereof |
| CN115283113B (en) * | 2022-03-24 | 2023-11-10 | 白银新银鑫工贸有限公司 | Feed additive and preparation process thereof |
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