An environment-friendly electrode paste raw material crushing system based on a residual anode

Abstract

The application relates to an environment-friendly electrode paste raw material crushing system based on a residual anode, which comprises a first dust collecting chamber and a second dust collecting chamber, a first jaw crusher is arranged in the first dust collecting chamber; the second dust collecting chamber is communicated with the first dust collecting chamber, a second jaw crusher is arranged in the second dust collecting chamber; dust collecting covers are respectively arranged on the top ends of the first dust collecting chamber and the second dust collecting chamber; a centrifugal separator is arranged and used for selecting residual anode particles with appropriate particle sizes; a plurality of material conveying belts are arranged and used for conveying residual anodes among the first jaw crusher, the second jaw crusher and the centrifugal separator; and a dust removal device is arranged and comprises a plurality of negative pressure pipes, one end of each of the negative pressure pipes is connected with a negative pressure fan, the other end of each of the negative pressure pipes penetrates through the dust collecting cover and is communicated with the top end of the first dust collecting chamber and the second dust collecting chamber, the first dust collecting chamber and the second dust collecting chamber are used for reducing the pollution of dust and tiny particles generated in the crushing process to the working environment, the dust removal device is used for quickly sucking and removing the dust, and the dust diffusion area is reduced.

Description

Technical Field

[0001] This application belongs to the field of electrode paste production technology, and specifically relates to an environmentally friendly electrode paste raw material crushing system based on residual anode. Background Technology

[0002] Residual anodes, as one of the raw materials for electrode paste production, benefit from their high alumina content and low price, which helps reduce production costs and losses. However, the quality of recycled residual anodes varies greatly, and they differ in shape and size. They need to be crushed and screened to form particles with uniform particle size to ensure they can be used as raw materials for producing high-quality electrode paste. However, the surface of residual anodes is usually covered with an electrolyte hard shell (a hard shell formed by impurities such as cryolite, fluorides, and iron). Because residual anodes themselves have low water content, their structure is loose and their density is low, making them prone to generating fine particles during crushing. Furthermore, the hard shell on the surface of residual anodes is highly brittle, easily generating micron-sized dust during crushing, resulting in a high dust concentration and severe pollution in the working environment for residual anode crushing. Summary of the Invention

[0003] Based on the aforementioned technical needs, this application provides an environmentally friendly electrode paste raw material crushing system based on residual anodes, which solves the problem of serious environmental pollution caused by the large amount of dust and fine particles generated during the residual anode crushing process.

[0004] To achieve the above objectives, the technical solution of this application is as follows:

[0005] An environmentally friendly electrode paste raw material crushing system based on residual anodes includes a first dust collection chamber, in which a first jaw crusher is installed; a second dust collection chamber, which is connected to the first dust collection chamber, and in which a second jaw crusher is installed; a dust collection hood, which covers the top of the first dust collection chamber and the second dust collection chamber respectively; a centrifugal separator, used to select residual anode particles of suitable particle size; several material conveyor belts, which are respectively connected to the discharge port of the first jaw crusher, the feed port of the second jaw crusher, the discharge port of the second jaw crusher, and the feed port of the centrifugal separator; and a dust removal device, which includes several negative pressure pipes, one end of which is connected to a negative pressure fan, and the other end of which passes through the dust collection hood and is connected to the top of the first dust collection chamber and the second dust collection chamber respectively.

[0006] Preferably, the dust removal device further includes several negative pressure branch pipes, one end of each negative pressure branch pipe being connected to a negative pressure pipe in a corresponding manner, and the other end extending to the discharge port side of the first jaw crusher, the second jaw crusher, and the centrifugal separator.

[0007] Preferably, both the first dust collection chamber and the second dust collection chamber are located underground, and the dust collection hood is provided with a filling door near the feed inlet of the first jaw crusher and near the feed inlet of the second jaw crusher, respectively.

[0008] Preferably, a guide chute is movably suspended below the discharge port of the first jaw crusher and the second jaw crusher, one end of the guide chute extends downward at an incline to the feeding end of the material conveyor belt, a vibration device is provided on one side of the guide chute, and one end of the negative pressure branch pipe extends to the material guiding path of the guide chute.

[0009] Preferably, the bottom of the feed trough is provided with a powder removal port, and the powder removal port is covered with a filter screen.

[0010] Preferably, a powder collecting device is connected to the lower part of the powder removal port.

[0011] Preferably, the powder collecting device includes a funnel, the inlet of the funnel is connected to the powder removal port, and the outlet of the funnel extends downward and is connected to a conveying auger, the conveying auger being used to output the powder to the first dust collection chamber and / or the second dust collection chamber.

[0012] Preferably, the environmentally friendly electrode paste raw material crushing system further includes a belt-type iron remover and a support frame, wherein the belt-type iron remover is suspended above the material conveyor belt located between the first jaw crusher and the second jaw crusher via the support frame.

[0013] By adopting the above technical solution, compared with the prior art, this application has at least the following beneficial effects:

[0014] First, during the crushing of residual anodes, the first jaw crusher pre-crushes the residual anodes to break the electrolyte hard shell on the surface of the residual anodes. Then, the second jaw crusher further crushes the residual anode body, so that the dust or fine particles of different compositions generated by the residual anodes at different crushing stages are distributed in the first and second dust collection chambers, avoiding mutual mixing and reducing the difficulty of dust removal. This also relatively reduces the amount of impurities in the crushed particles of the residual anodes, thus improving the quality of the residual anode particles. Furthermore, the dust and fine particles generated during the crushing and sorting process are removed in separate areas, which helps to improve dust removal efficiency and reduce the amount of dust that escapes outdoors.

[0015] Second, the first jaw crusher and the second jaw crusher generate a large amount of dust and noise pollution during the crushing process due to the large impact. Placing them in the first dust collection chamber and the second dust collection chamber respectively helps to reduce dust leakage and noise transmission, and reduce pollution in the workplace. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the environmentally friendly electrode paste raw material crushing system in the embodiment.

[0017] Figure 2 This is a partial schematic diagram A of the environmentally friendly electrode paste raw material crushing system in the embodiment.

[0018] Figure 3 This is a partial schematic diagram (B) of the environmentally friendly electrode paste raw material crushing system in the embodiment.

[0019] Figure 4 This is a partially enlarged view (C) of the environmentally friendly electrode paste raw material crushing system in the embodiment (taken from...). Figure 1 ).

[0020] In the diagram: First dust collection chamber 10, first jaw crusher 11, feed chute 12, dust removal port 121, filter screen 122, vibration device 13, floor 14, iron removal port 141, second dust collection chamber 20, second jaw crusher 21, dust collection hood 30, filling door 31, centrifugal separator 40, material conveyor belt 50, dust removal device 60, negative pressure fan 61, negative pressure pipe 62, negative pressure branch pipe 63, powder collection component 70, funnel 71, conveying auger 72, belt-type iron removal machine 80, support 90, suspension mechanism 91.

[0021] It should be noted that, in order to reduce the length of the accompanying drawings and to show more details of this application, the above-mentioned drawings... Figure 2 Appendix Figure 3 and appendix Figure 4 The text employs techniques such as partial partitioning and reasonable omissions to highlight the details of local structures, rather than representing the actual appearance of the structures. These techniques do not adversely affect the understanding and description of other structural content in this application. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The technical solutions of this application will be further described below with reference to the accompanying drawings of the embodiments, and this application is not limited to the following specific implementation methods.

[0023] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "inner," "outer," "left," "right," "front," "rear," "top," and "bottom" indicate directions or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limitations on this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0024] The following is in conjunction with the appendix Figure 1 To be continued Figure 4 The present application will be further described in detail with reference to specific embodiments.

[0025] This application discloses an environmentally friendly electrode paste raw material crushing system based on residual anodes (hereinafter referred to as the "crushing system"), including a first dust collection chamber 10 and a second dust collection chamber 20. The first dust collection chamber 10 and the second dust collection chamber 20 are connected on adjacent sides, and a first jaw crusher 11 and a second jaw crusher 21 are respectively installed in the first dust collection chamber 10 and the second dust collection chamber 20. The openings at the top of the first dust collection chamber 10 and the second dust collection chamber 20 are respectively covered with dust collection hoods 30. The system also includes a centrifugal separator 40 for physically separating the crushed residual anodes. The system separates residual anode particles of suitable size; and includes several material conveyor belts 50 and a dust removal device 60. The material conveyor belts 50 are sequentially connected to the discharge port of the first jaw crusher 11, the feed port of the second jaw crusher 21, the discharge port of the second jaw crusher 21, and the feed port of the centrifugal separator 40. The dust removal device 60 includes a negative pressure fan 61 and several negative pressure pipes 62. One end of each negative pressure pipe 62 is connected to the negative pressure fan 61, and the other end passes through the dust collection hood 30 and is connected to the top of the first dust collection chamber 10 and the second dust collection chamber 20.

[0026] Specifically, to facilitate personnel entering the dust collection chamber for cleaning or equipment maintenance, the dust collection hood 30 is detachably connected to the top of the first dust collection chamber 10 and the second dust collection chamber 20, or an openable and closable cover is provided on the surface of the dust collection hood 30 to facilitate personnel entry.

[0027] The process of using the above-mentioned crushing system is as follows:

[0028] The recycled residual anode material enters the first jaw crusher 11 for pre-crushing, first breaking the electrolyte hard shell on the surface of the residual anode; the pre-crushed residual anode is then fed into the second jaw crusher 21 via the material conveyor belt 50 for secondary fine crushing to reduce the particle size of the residual anode; during this period, the first dust collection chamber 10 and the second dust collection chamber 20 collect the dust generated by the residual anodes of different crushing degrees in different areas, and the dust is removed by the dust removal components, reducing the dust concentration in the working environment.

[0029] Using the above-mentioned crushing system has at least the following effects:

[0030] First, during the crushing of residual anodes, the first jaw crusher 11 pre-crushes the residual anodes to break the electrolyte hard shell on the surface of the residual anodes. Then, the second jaw crusher 21 further crushes the residual anode body, so that the dust or fine particles of different compositions generated by the residual anodes at different crushing stages are distributed in different dust collection chambers, avoiding mutual mixing and reducing the difficulty of dust removal. It also relatively reduces the amount of impurities in the crushed particles of residual anodes, thus improving the quality of residual anode particles. Furthermore, the dust and fine particles generated during the crushing and sorting process are removed in different areas, which helps to improve dust removal efficiency and reduce the amount of dust that escapes outdoors.

[0031] Second, the first jaw crusher 11 and the second jaw crusher 21 generate a large amount of dust and noise pollution during the crushing process due to the large impact. Placing them in the first dust collection chamber 10 and the second dust collection chamber 20 respectively helps to reduce dust leakage and noise transmission, and reduce pollution in the workplace.

[0032] Based on the above embodiments, this application also provides further embodiments to improve the above-mentioned environmentally friendly electrode paste raw material crushing system.

[0033] In one embodiment, in order to improve the dust removal efficiency of the above-mentioned dust removal component and reduce the powder content of residual anode particles, the dust removal component further includes a plurality of negative pressure branch pipes 63. One end of the negative pressure branch pipe 63 is connected to the negative pressure pipe 62 in a corresponding manner, and the other end extends to one side of the discharge port of the first jaw crusher 11, the second jaw crusher 21 and the centrifugal separator 40.

[0034] When using the above-mentioned crushing system, the negative pressure fan 61 removes dust from the discharge ports of the first jaw crusher 11, the second jaw crusher 21, and the centrifugal separator 40 through the negative pressure branch pipe 63 during the discharge process.

[0035] To further ensure the airtightness of the above system and reduce the spread of dust and noise, the first dust collection chamber 10 and the second dust collection chamber 20 are both located underground, and the dust collection hood 30 is equipped with a packing door 31 near the feed inlet of the first jaw crusher 11 and the second jaw crusher 21, respectively.

[0036] Specifically, both the first dust collection chamber 10 and the second dust collection chamber 20 are spaces excavated downwards from the ground, and the area between the two spaces below the floor 14 is excavated to allow for the inclined placement of the material conveyor belt 50, which connects the discharge port of the first jaw crusher 11 and the feed port of the second jaw crusher 21. Simultaneously, to facilitate the full utilization of ground space for accumulating residual anode material to be crushed, a packing door 31 is installed near the feed port of each jaw crusher on the dust collection hood 30. The packing door 31 of the dust collection hood 30, located above the first dust collection chamber 10, consists of a door opening and a door panel hinged within the door opening. A large amount of material can be piled up in the ground area in front of the door panel. To save on material handling costs, the residual anodes awaiting crushing can be manually or mechanically metered and fed into the packing gate 31. The gate opens backward under pressure, allowing the material to directly enter the feed inlet of the first jaw crusher 11 along the direction of gravity. After one filling, the gate automatically closes, preventing dust from escaping from the first dust collection chamber 10. One end of the material conveyor belt 50, located between the two jaw crushers, extends upward at an angle and enters through the packing gate 31 of the dust collection hood 30 above the second dust collection chamber 20, transporting the residual anodes crushed by the first jaw crusher 11 from below the floor 14 to the feed inlet of the second jaw crusher 21. This embodiment allows the crushing, transfer, and dust removal of residual anodes to all be carried out underground, saving ground space and reducing the spread of dust and equipment noise.

[0037] Furthermore, to improve the dust removal effect of the negative pressure branch pipe 63, the discharge ports of the first jaw crusher 11 and the second jaw crusher 21 are respectively movably suspended by chains or other flexible suspension components to provide a guide chute 12. The guide chute 12 extends downward from below the discharge port of the jaw crusher to the feeding end of the material conveyor belt 50, and a vibration device 13, such as a vibration motor, is provided on the side of the guide chute 12 away from its guide path; and one end of the negative pressure branch pipe 63 extends to the guide path of the guide chute 1211.

[0038] When using the above-mentioned crushing system, during the feeding process after crushing, the vibration device 13 causes the guide chute 12 to shake at a set frequency. The residual anode particles in the guide chute 12 are dispersed and fall onto the material conveyor belt 50 under the shaking action. The falling process and the shaking process improve the separation degree between the residual anode particles and the dust, making it easier for the negative pressure branch pipe 63 to suck out the dust mixed in the residual anode particles, thereby improving the purity and particle size uniformity of the residual anode particles and reducing the impurity content of the residual anode particles.

[0039] Furthermore, in order to prevent some impurities and debris from being difficult to be sucked or screened out during the crushing process because their weight is greater than that of dust and their particle size is much smaller than that of the residual anode, the bottom of the above-mentioned feed trough 12 is provided with a dust removal port 121, and a filter screen 122 is covered above the dust removal port 121.

[0040] During the process of feeding material from the guide trough 12 by the vibration device 13, some impurities and fragments pass through the filter screen 122 and the powder removal port 121, thus deviating from the transport direction of the material conveyor belt 50. After two filtration screenings in the guide trough 12 and centrifugal screenings in the centrifugal separator 40, the content of fine impurities in the final collected residual anode particles is greatly reduced.

[0041] Furthermore, in order to facilitate the timely collection of the impurities or dust screened out by the dust removal port 121, a powder collection component 70, such as a collection box or a storage tank, is connected to the lower part of the dust removal port 121.

[0042] Specifically, to facilitate the collection of fine impurities and some dust generated during the crushing process and their output from the first dust collection chamber 10 and the second dust collection chamber 20 located underground, in one embodiment, the powder collection component 70 includes a funnel 71 distributed below the dust removal port 121 and a conveying auger 72 located underground and penetrating the bottom of the first dust collection chamber 10 and the second dust collection chamber 20. The inlet of the funnel 71 can receive the powder falling from the dust removal port 121, and the outlet of the funnel 71 extends downward through a pipeline and communicates with the inlet of the conveying auger 72. The other end of the conveying auger 72 is connected to another conveying auger 72 or a powder elevator (not shown in the figure) to change the transport direction of the powder, so that the powder is transported to the ground and processed or collected, thereby saving manpower.

[0043] In one embodiment, the crushing system further includes a support 90 and a belt-type iron separator 80. Specifically, the material conveyor belt 50 located between the first jaw crusher 11 and the second jaw crusher 21 passes between the two door frame-shaped frames of the support 90. A suspension mechanism 91 is provided at the top of the support 90. The suspension mechanism 91 includes a telescopic drive rod or chain. The belt-type iron separator 80 is suspended above the material conveyor belt 50 by the suspension mechanism 91 and maintains a certain distance from the material conveyor belt 50. This distance must be maintained within the magnetic field range of the magnet of the belt-type iron separator 80. An iron removal port 141 is opened at the position of the floor 14 above the material conveyor belt corresponding to the support 90. The support 90 suspends the belt-type iron separator 80 above the iron removal port 141. When the material conveyor belt 50 transports the crushed residual anode particles, the belt-type iron remover 80 can adsorb the iron-containing impurities mixed in the residual anode particles, and push the adsorbed iron-containing impurities onto the side floor 14 above the iron removal port 141 for collection or treatment, thereby removing impurities with high iron content from the residual anode particles.

[0044] Combining the various structures and features in the above embodiments, the corresponding functions of the above-mentioned environmentally friendly electrode paste raw material crushing system based on residual anodes are improved, enabling it to increase the crushing efficiency of residual anodes, reduce dust pollution during the crushing process of residual anodes, and improve the particle size uniformity and purity of residual anode particles.

[0045] Obviously, the above embodiments of this application are merely examples for clearly illustrating this application, and are not intended to limit the implementation of this application. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An environmentally friendly electrode paste raw material crushing system based on residual anode, characterized in that, include: The first dust collection chamber is equipped with a first jaw crusher. The second dust collection chamber is connected to the first dust collection chamber, and a second jaw crusher is installed in the second dust collection chamber. Dust collection hoods, which respectively cover the tops of the first dust collection chamber and the second dust collection chamber; Centrifugal separators are used to separate residual anode particles of suitable size. Several material conveyor belts are respectively connected to the discharge port of the first jaw crusher, the feed port of the second jaw crusher, the discharge port of the second jaw crusher, and the feed port of the centrifugal separator. as well as, Dust removal device, the dust removal device includes, Several negative pressure pipes are provided, one end of which is connected to a negative pressure fan, and the other end of each pipe passes through the dust collection hood and is connected to the top of the first dust collection chamber and the second dust collection chamber, respectively.

2. The environmentally friendly electrode paste raw material crushing system as described in claim 1, characterized in that, The dust removal device also includes several negative pressure branch pipes, one end of which is connected to the negative pressure pipe in a corresponding manner, and the other end of which extends to the discharge port side of the first jaw crusher, the second jaw crusher, and the centrifugal separator.

3. The environmentally friendly electrode paste raw material crushing system as described in claim 1, characterized in that, Both the first and second dust collection chambers are located underground. The dust collection hood is equipped with a filling door near the feed inlet of the first jaw crusher and near the feed inlet of the second jaw crusher, respectively.

4. The environmentally friendly electrode paste raw material crushing system as described in claim 2, characterized in that, The first jaw crusher and the second jaw crusher are respectively equipped with movably suspended guide chutes below their discharge ports. One end of the guide chutes extends downward at an incline to the feeding end of the material conveyor belt. A vibration device is provided on one side of the guide chutes, and one end of each negative pressure branch pipe extends to the material guiding path of the guide chutes.

5. The environmentally friendly electrode paste raw material crushing system as described in claim 4, characterized in that, The bottom of the feed trough is provided with a powder removal port, and the powder removal port is covered with a filter screen.

6. The environmentally friendly electrode paste raw material crushing system as described in claim 5, characterized in that, A powder collection device is connected to the lower part of the powder removal port.

7. The environmentally friendly electrode paste raw material crushing system as described in claim 6, characterized in that, The powder collection device includes a funnel, the inlet of which is connected to the powder removal port, and the outlet of which extends downward and is connected to a conveying auger. The conveying auger is used to output the powder from the first dust collection chamber and / or the second dust collection chamber.

8. The environmentally friendly electrode paste raw material crushing system as described in any one of claims 1 to 7, characterized in that, It also includes a belt-type iron remover and a support frame, wherein the belt-type iron remover is suspended above the material conveyor belt located between the first jaw crusher and the second jaw crusher via the support frame.

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