CN-121972264-A - Grinding device based on palladium-carbon recovery

CN121972264ACN 121972264 ACN121972264 ACN 121972264ACN-121972264-A

Abstract

The invention provides a grinding device based on palladium-carbon recovery, which comprises a roller arranged on a machine table, wherein the roller is in transmission connection with a roller driving assembly, the roller is used for grinding materials, one end of the roller is provided with a feed inlet and an air inlet, the other end of the roller is provided with a discharge pipe, air flow is formed between the air inlet and the discharge pipe, dust generated in grinding is conveyed to the discharge pipe through the air flow, and a filter screen is arranged in the discharge pipe and used for blocking leakage of particle materials except the dust. In the grinding process, the effective materials with larger weight can be reserved by controlling the air flow strength and the filter screen, the generated powder with smaller weight is carried out through the air flow, the powder is prevented from remaining in the roller to block the material pores, the porosity of the finally produced material is ensured, the palladium metal leaching reaction efficiency in the material is ensured, and the recovery efficiency is ensured.

Inventors

YU FENGSHAN
ZHU SANE
Tong Shuigen
CHEN NENG
ZHAN FAWANG
YANG JIE
HAO YUCHENG
WANG FEIHONG
HU KUNHONG
YANG WEI

Assignees

江西昌驰新材料科技有限公司
合肥大学

Dates

Publication Date: 20260505
Application Date: 20260320

Claims (10)

1. The grinding device based on palladium-carbon recovery is characterized by comprising a roller arranged on a machine table, wherein the roller is in transmission connection with a roller driving assembly and is used for grinding materials, One end of the roller is provided with a feed inlet and an air inlet, and the other end of the roller is provided with a discharge pipe so as to form air flow between the air inlet and the discharge pipe, and dust generated in grinding is conveyed to the discharge pipe through the air flow; a filter screen is arranged in the discharging pipe and used for blocking leakage of granular materials except dust.
2. The palladium-carbon recovery based polishing apparatus according to claim 1, wherein the inside of the drum further comprises a turning structure for taking up the material accumulated in the lower portion of the drum to the upper portion of the drum and scattering the material from the upper portion of the drum to release dust in the material when the drum rotates.
3. The palladium-carbon recovery-based grinding device according to claim 2, wherein the turning structure comprises protruding bars extending along the axial direction of the drum, and a plurality of protruding bars are arranged at intervals along the circumferential direction of the inner side wall of the drum.
4. A palladium-carbon recovery-based grinding apparatus according to claim 3, wherein the drum is disposed obliquely and the discharge side is higher than the feed side, and a plurality of partitions are disposed on the projection strip at intervals along the axial direction of the drum.
5. The palladium-carbon recovery-based grinding device according to claim 1, wherein a sliding plate is fixedly arranged in the discharging pipe, the filter screen is slidably arranged on the sliding plate, an elastic membrane is further arranged between the filter screen and the discharging pipe, and the elastic membrane is unfolded or folded according to the movement of the filter screen.
6. The palladium-carbon recovery-based grinding device according to claim 5, wherein an electromagnet is further fixedly arranged on the discharging pipe, a metal sheet is further fixedly arranged on the elastic membrane, and the electromagnet is aligned and matched with the metal sheet when the elastic membrane is unfolded, so that the metal sheet is controlled to move according to the controllable magnetism of the electromagnet, and the elastic membrane is driven to shake.
7. The palladium on carbon recovery polishing apparatus according to claim 6, wherein the screen is connected to a driving module, and the driving module is further configured to put the screen in a floating state after the elastic membrane is stretched by driving the screen to move, so that the screen vibrates in response to shaking of the elastic membrane.
8. The palladium on carbon recovery based polishing apparatus of claim 7, wherein the drive module comprises a first sleeve, a connecting rod, and a driver, wherein, The first sleeve is in transmission connection with the driver; the connecting rod activity sets up in the first sleeve, the one end of connecting rod with the filter screen is articulated, the other end with first sleeve two-way spacing connection.
9. The palladium on carbon recovery based polishing apparatus of claim 8, wherein the drive module further comprises a second sleeve, wherein, A spring is further arranged in the first sleeve and connected with the connecting rod through the spring, and a guide groove is further formed in the side wall of the first sleeve; The side wall of the connecting rod is provided with a guide pin which is in sliding connection with the guide groove; the second sleeve is fixedly arranged in the discharging pipe and sleeved outside the first sleeve, and a guide inclined plane is arranged on the end face of one end, which points to the filter screen, of the second sleeve; The guide groove comprises a continuous linear region and a triangular region, the linear region is arranged close to the filter screen, the bottom edge and the main oblique edge of the triangular region are connected with the linear region, and the bottom edge is perpendicular to the driving direction of the first sleeve; the guide inclined surface is used for moving the guide rod to the linear area along the bottom edge so as to put the filter screen into a floating state; The main bevel edge is used for guiding the guide rod to enter the triangular area from the linear area and limiting the guide pin through the bottom edge, so that the driving module can pull the filter screen.
10. The palladium-carbon recovery-based grinding device according to claim 5, wherein a rigid plate is further connected to the bottom surface of the slide plate in a flip-up manner, one end of the rigid plate, which is close to the discharging direction, is rotatably connected to the slide plate, and a blocking film is disposed between one end of the rigid plate, which is close to the feeding direction, and the slide plate.

Description

Grinding device based on palladium-carbon recovery Technical Field The invention relates to the technical field of metal material recovery, in particular to a grinding device based on palladium-carbon recovery. Background In the recovery process of the waste palladium-carbon catalyst, catalyst particles are required to be crushed, then the crushed powder is mixed and leached with acid liquid such as aqua regia and the like to obtain palladium solution, palladium ions in the palladium solution are reduced into sponge palladium after impurities are removed by purifying the palladium solution, and finally metal palladium is obtained by refining, so that the whole extraction process is completed. The purpose of grinding the catalyst particles is to expose palladium wrapped in the material and increase the contact area of the material and acidic liquid. However, the prior grinding device is designed to reduce the volume of the material, so that whether the internal components of the material are exposed or not is not considered, a large amount of fine dust is generated in the grinding process, the initial grinding effect can increase the porosity of the material in the grinding process, but the fine powder generated in the grinding process can block the pores of the material, and the palladium metal cannot smoothly contact with the acidic liquid in opposition to the purpose of exposing the palladium wrapped in the material, thereby causing adverse effects on subsequent leaching reactions and reducing the recovery efficiency. Disclosure of Invention Accordingly, the present invention is directed to a polishing apparatus based on palladium-carbon recovery, so as to solve the problems that fine powder generated by polishing in the prior art can block the pores of materials, and the purpose of exposing palladium wrapped inside the materials is contrary to the purpose of reducing recovery efficiency. The invention provides a grinding device based on palladium-carbon recovery, which comprises a roller arranged on a machine table, wherein the roller is in transmission connection with a roller driving assembly and is used for grinding materials, One end of the roller is provided with a feed inlet and an air inlet, and the other end of the roller is provided with a discharge pipe so as to form air flow between the air inlet and the discharge pipe, and dust generated in grinding is conveyed to the discharge pipe through the air flow; a filter screen is arranged in the discharging pipe and used for blocking leakage of granular materials except dust. Optionally, the inside of the roller further comprises a material turning structure, which is used for taking the material accumulated at the lower part of the roller to the upper part of the roller when the roller rotates, and scattering the material from the upper part of the roller so as to release dust in the material. Optionally, the material turning structure comprises protruding strips, wherein the protruding strips extend along the axial direction of the roller, and a plurality of protruding strips are arranged along the circumferential direction of the inner side wall of the roller at intervals. Optionally, the cylinder slope sets up, and the ejection of compact side is higher than the feed side, still be provided with a plurality of baffles that follow the axial interval setting of cylinder on the protruding strip. Optionally, still fixedly be provided with the slide in the discharging pipe, the filter screen slides and sets up on the slide, the filter screen with still be provided with the elastic membrane between the discharging pipe, the elastic membrane is according to the activity of filter screen is expanded or is packed up. Optionally, the discharging pipe is further fixedly provided with an electromagnet, the elastic membrane is further fixedly provided with a metal sheet, and when the elastic membrane is unfolded, the electromagnet is aligned and matched with the metal sheet, and the electromagnet is used for controlling the metal sheet to move according to the controllable magnetism of the electromagnet, so that the elastic membrane is driven to shake. Optionally, the filter screen is connected with a driving module, and the driving module is further used for placing the filter screen in a floating state after the elastic membrane is unfolded by driving the filter screen to move so as to enable the filter screen to vibrate along with shaking of the elastic membrane. Optionally, the driving module comprises a first sleeve, a connecting rod and a driver, wherein, The first sleeve is in transmission connection with the driver; the connecting rod activity sets up in the first sleeve, the one end of connecting rod with the filter screen is articulated, the other end with first sleeve two-way spacing connection. Optionally, the drive module further comprises a second sleeve, wherein, A spring is further arranged in the first sleeve and connected with the connectin