Waste catalyst metal loading layer separation device

Abstract

The utility model provides a waste catalyst metal loading layer separating device which comprises a seat body and a separating box obliquely arranged on the seat body, a separating cavity is arranged in the separating box, at least one separating device is arranged in the separating cavity, and each separating device comprises a conveying mechanism used for conveying a rare and noble metal catalyst. Scraping and brushing parts for stripping the rare and noble metal catalyst are arranged on the two sides of the conveying mechanism. And when the transmission mechanism conveys the rare noble metal catalyst to move in the length direction of the separation box, the two scraping parts are driven to rotate to rotationally scrape the surface layer of the rare noble metal catalyst. The scraping and brushing part is connected to the separation box in a pivoted mode, and a first discharging port and a second discharging port are formed in the separation box. According to the utility model, the stripping effect of the metal load layer is improved, and the metal load layer is stripped in the sealed separation box, so that environmental pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of catalyst recovery, in particular to a waste catalyst metal load layer separation device. Background Art

[0002] Metal-supported catalysts are widely used in the chemical industry due to their excellent catalytic efficiency, especially platinum, palladium, ruthenium and other rare and precious metal-supported catalysts, which are the most typical. Their main advantages are high efficiency, low temperature, good selectivity, safety and reliability. Among them, rare and precious metals exist in a certain form on the catalyst carrier, and common catalyst carriers include silicon dioxide, aluminum oxide, etc. Rare and precious metal-supported catalysts are widely used in oxygen reduction reactions, water electrolysis, hydrogenation, alkylation, deoxygenation and other reaction types, as well as selective hydrogenation in petrochemicals and the production of important organic chemical raw materials such as acetaldehyde and vinyl acetate, which can effectively reduce pollution and energy consumption. It can also be used as a catalyst for automobile exhaust purification and as an environmental protection catalyst, and its effect is very significant.

[0003] Precious metal supported catalyst is a highly efficient catalyst that can be widely used in the catalytic oxidation reaction of volatile organic compounds such as ethylene. Its main advantages are high efficiency, low temperature, good selectivity, safety and reliability. Among them, precious metals exist in a certain form on the catalyst carrier. Common catalyst carriers include silica, alumina, etc. Precious metal supported catalysts are widely used in hydrogenation, alkylation, deoxygenation and other reaction types. In petrochemicals, they are used for the production of important organic chemical raw materials such as hydrogenation and acetaldehyde and vinyl acetate, reducing pollution and energy consumption. It can also be used as a catalyst for automobile exhaust purification and as an environmental protection catalyst, which is very effective.

[0004] The rare metals in discarded rare metal catalysts are toxic pollutants that pose a threat to the environment and human health, pollute the soil and water sources, and even endanger life safety.

[0005] The existing methods for recycling waste precious metal catalysts include physical methods and chemical methods. The chemical method requires more energy and strict reaction conditions, so the recycling cost is high and the waste pollution in the recycling process is serious. The physical method requires the raw materials to be crushed in advance, and then the precious metals in the catalyst are separated from other substances by gravity sorting, magnetic sorting and other methods. Although the operation is simple, the effect is limited and it is difficult to achieve high-purity waste precious metal recycling. Utility Model Content

[0006] In view of this, the utility model aims to propose a waste catalyst metal load layer separation device, which can effectively peel off the metal load layer on the basis of retaining the original carrier function to the greatest extent, thereby improving the peeling effect and reducing environmental pollution.

[0007] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0008] A waste catalyst metal load layer separation device comprises a seat body, a separation box obliquely arranged on the seat body, a separation chamber is provided in the separation box, at least one separation device is provided in the separation chamber, the separation device comprises a transmission mechanism for conveying rare and precious metal catalysts, and scraping parts for stripping the rare and precious metal catalysts are provided on both sides of the transmission mechanism;

[0009] While the transmission mechanism transports the precious metal catalyst to move along the length direction of the separation box, the two scraping parts are driven to rotate and scrape the surface of the precious metal catalyst;

[0010] The scraping brush part is pivotally connected to the separation box, and the separation box is provided with a first discharge port and a second discharge port, the first discharge port is provided at the output end of the transmission mechanism, and the base body is provided with a first receiving hopper located at the lower end of the first discharge port, and the first receiving hopper is used to hold the rare and precious metal catalyst after the metal load layer is stripped;

[0011] The second discharge port is arranged at the bottom of the separation box, and the bottom surface of the separation box is connected with a second receiving hopper. After being peeled off, the metal load layer enters into the second receiving hopper through the second discharge port.

[0012] Furthermore, the transmission mechanism includes a support plate arranged along the length direction of the separation box, a transmission belt sleeved on the support plate, and a transmission mechanism driving the transmission belt to rotate in an annular manner.

[0013] Furthermore, the transmission mechanism includes a first driving part provided at one end of the support plate, the first driving part drives the transmission belt to rotate, and a positioning part for limiting the displacement of the rare metal catalyst is provided on the side of the transmission belt facing away from the support plate;

[0014] A driven wheel is provided at the other end of the support plate, a driving wheel is connected to the power output end of the first driving part, and the transmission belt is meshed with the driven wheel and the driving wheel for transmission;

[0015] The first driving part is fixedly connected to one end of the supporting plate via a support.

[0016] Furthermore, a plurality of the positioning portions are arranged at intervals on the conveyor belt;

[0017] The positioning portion includes two positioning plates arranged on the conveying belt at intervals along the conveying direction, and the rare metal catalyst is arranged between the two positioning plates.

[0018] Further, the support plate is in a "V" shape, comprising a first inclined plate and a second inclined plate;

[0019] The two transmission mechanisms are respectively arranged on the first inclined plate and the second inclined plate in opposition to each other.

[0020] Furthermore, the support plate includes a feed section extending outward from the separation box at one end, and a discharge section extending outward from the separation box at the other end;

[0021] The first material receiving hopper is arranged below the material discharging section.

[0022] Furthermore, a transition section is provided between the first inclined plate and the second inclined plate, and a long groove is provided on the transition section along the direction of the support plate;

[0023] The rare precious metal catalyst is arranged above the long groove, and the width of the long groove is smaller than that of the rare precious metal catalyst.

[0024] Furthermore, a second driving part is provided on one of the scraping and brushing parts;

[0025] The two scraping and brushing parts are both provided with a transmission wheel and a chain meshing with the transmission wheel for transmission. The second driving part is fixedly connected to the separation box through a mounting plate, and the second driving part drives the two scraping and brushing parts to rotate relative to each other.

[0026] Furthermore, the scraping and brushing part includes a rotating roller and a brush arranged along the circumference of the rotating roller.

[0027] Furthermore, the second discharge port is a plurality of through holes provided on the bottom plate of the separation box.

[0028] Compared with the prior art, the utility model has the following advantages:

[0029] The waste catalyst metal load layer separation device described in the utility model provides transmission power for the rare precious metal catalyst by arranging a transmission mechanism. While the rare precious metal catalyst is being transmitted, two scraping and brushing parts rotate and act on the rare precious metal catalyst to scrape off the metal load layer on the surface of the rare precious metal catalyst, so that the metal load layer falls into the second receiving hopper from the second discharge port in powder form. The rare precious metal catalyst rotates during the process of being scraped by the scraping and brushing parts during the transmission process, so that the metal load layer on the circumference can be evenly stripped off, thereby improving the stripping effect of the metal load layer. In addition, the device has no chemical reaction, and the stripping of the metal load layer is carried out in a sealed separation box to avoid environmental pollution.

[0030] In addition, the rare precious metal catalyst is clamped between the first inclined plate, the second inclined plate and two sets of positioning plates, so that the rare precious metal catalyst is positioned at the corner of the support plate. The separation box is tilted at 15°. The rare precious metal catalyst is abutted against the positioning plate on one side due to gravity and will not move during transportation.

[0031] In addition, the separation device of the metal support layer of the rare metal catalyst of the utility model can avoid the defect of the prior art that the carrier is destroyed and cannot be reused when the catalyst is recovered by chemical methods. In addition, the environmental pollution caused by the chemical method is avoided. The defect of the prior art physical stripping method that the stripping effect of the support layer is poor is also avoided, and the stripping effect is improved while improving the utilization rate of the waste catalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the waste catalyst metal loading layer separation device according to an embodiment of the utility model;

[0034] Figure 2 This is a schematic diagram of the top view of the structure of the waste catalyst metal support layer separation device according to an embodiment of the utility model;

[0035] Figure 3 for Figure 2 Schematic cross-sectional view at AA in the middle;

[0036] Figure 4 for Figure 2 A schematic cross-sectional view of the middle BB;

[0037] Figure 5 It is a three-dimensional schematic diagram of a transmission mechanism according to an embodiment of the utility model from a first viewing angle;

[0038] Figure 6 A perspective schematic diagram of a transmission mechanism according to an embodiment of the present utility model from a second viewing angle;

[0039] Figure 7 for Figure 6 A partial enlarged view of point I in the middle;

[0040] Figure 8 It is a schematic longitudinal cross-sectional view of the transmission mechanism described in an embodiment of the utility model.

[0041] Description of reference numerals:

[0042] 1. seat body; 2. separation box; 3. transmission mechanism; 4. scraping and brushing part; 5. first receiving hopper; 6. second receiving hopper; 7. second driving part;

[0043] 301, support plate; 302, transmission belt; 303, transmission mechanism;

[0044] 401, rotating roller; 402, brush;

[0045] 3031, first driving part; 3032, positioning plate; 3011, first inclined plate; 3012, second inclined plate; 3013, feeding section; 3014, discharging section; 3015, transition section; 3016, long groove. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0047] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0048] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0050] The present embodiment relates to a waste catalyst metal load layer separation device, which includes a base body 1, a separation box 2 obliquely arranged on the base body 1, a separation chamber provided in the separation box 2, and at least one separation device provided in the separation chamber. The separation device includes a transmission mechanism 3 for conveying rare and precious metal catalysts, and scraping brushes 4 for stripping rare and precious metal catalysts are provided on both sides of the transmission mechanism 3.

[0051] Among them, while the transmission mechanism 3 transports the precious metal catalyst to move along the length direction of the separation box 2, the two scraping brush parts 4 are driven to rotate and scrape the surface layer of the precious metal catalyst. The scraping brush part 4 is pivotally connected to the separation box 2, and the separation box 2 is provided with a first discharge port and a second discharge port. The first discharge port is provided at the output end of the transmission mechanism 3, and the base body 1 is provided with a first receiving hopper 5 located at the lower end of the first discharge port. The first receiving hopper 5 is used to hold the precious metal catalyst after the metal load layer is stripped. The second discharge port is provided at the bottom of the separation box 2, and the bottom surface of the separation box 2 is connected to the second receiving hopper 6. After the metal load layer is stripped, it enters the second receiving hopper 6 through the second discharge port.

[0052] The waste catalyst metal load layer separation device described in this embodiment provides a transmission mechanism 3 for the precious metal catalyst to provide transmission power. While the precious metal catalyst is being transmitted, the two scraping and brushing parts 4 rotate and act on the precious metal catalyst to scrape off the metal load layer on the surface of the precious metal catalyst, so that the metal load layer falls into the second receiving hopper 6 from the second discharge port in powder form. The precious metal catalyst rotates during the process of being scraped by the scraping and brushing parts 4 during the transmission process, so that the metal load layer on the circumference can be evenly stripped off, thereby improving the stripping effect of the metal load layer. In addition, the device has no chemical reaction, and the stripping of the metal load layer is carried out in the sealed separation box 2 to avoid environmental pollution.

[0053] Based on the above overall introduction, an exemplary structure of the waste catalyst metal support layer separation device of this embodiment is as follows: Figures 1 to 4 As shown, the seat body 1 is a leg connected to the separation box 2. The separation box 2 is formed into a rectangular box structure. The separation box 2 is set at 15° to the ground, so that the powder after the metal load layer is peeled off is concentrated on one side of the second receiving hopper 6 for easy collection.

[0054] In this embodiment, a rare metal catalyst is taken as an example, wherein the rare metal catalyst is a rare metal loaded molecular sieve type, which is formed into a polygonal prism structure, with a maximum diameter of about 3 to 5 mm, a length of about 10 to 30 mm, and a relatively hard texture. When loading, the rare metal catalyst can be manually placed on the transmission mechanism 3, or a special loading mechanism or a manipulator can be used to load the material.

[0055] As a preferred implementation mode, Figures 5 to 8 As shown, the transmission mechanism 3 includes a support plate 301 arranged along the length direction of the separation box 2, a transmission belt 302 sleeved on the support plate 301, and a transmission mechanism 303 for driving the transmission belt 302 to rotate in an annular manner.

[0056] Further, as Figures 5 to 8As shown, the transmission mechanism 303 includes a first driving part 3031 disposed at one end of the support plate 301, the first driving part 3031 drives the transmission belt 302 to rotate, and a positioning part for limiting the displacement of the rare metal catalyst is disposed on the side of the transmission belt 302 facing away from the support plate 301. A driven wheel is disposed at the other end of the support plate 301, and a driving wheel is connected to the power output end of the first driving part 3031, and the transmission belt 302 is toothedly meshed with the driven wheel and the driving wheel for transmission. The first driving part 3031 is fixedly connected to one end of the support plate 301 through a support.

[0057] In this embodiment, the first driving part 3031 adopts a driving motor, the support is an L-shaped plate (not shown in the figure), and the first driving part 3031 is fixedly connected to one end of the support plate 301 by bolts through the support. The transmission belt 302 in this embodiment is a belt, and the driving wheel and the driven wheel are driven by pulleys.

[0058] In addition, if Figure 6 to Figure 7 As shown, a plurality of positioning parts are arranged at intervals on the conveyor belt 302. The positioning part includes two positioning plates 3032 arranged at intervals on the conveyor belt 302 along the conveying direction, and the rare precious metal catalyst is arranged between the two positioning plates 3032. The space between the two positioning plates 3032 is surrounded by a space for accommodating the rare precious metal catalyst, and the rare precious metal catalyst is placed between the two positioning plates 3032.

[0059] Furthermore, if Figure 7 As shown, the support plate 301 is in a "V" shape, which includes a first inclined plate 3011 and a second inclined plate 3012;

[0060] The two transmission mechanisms 303 are respectively arranged oppositely on the first inclined plate 3011 and the second inclined plate 3012. The two sets of opposite positioning plates 3032 also form a "V" shape, and the rare precious metal catalyst is clamped between the first inclined plate 3011, the second inclined plate 3012 and the two sets of positioning plates 3032, so that the rare precious metal catalyst is positioned at the corner of the support plate 301, and, as the separation box 2 is arranged at an angle of 15 degrees as mentioned above, the rare precious metal catalyst is abutted against the positioning plate 3032 on one side by gravity, and will not move during transmission.

[0061] like Figure 3 As shown, the support plate 301 includes a feed section 3013 extending outward from the separation box 2 at one end, and a discharge section 3014 extending outward from the separation box 2 at the other end. The first receiving hopper 5 is arranged below the discharge section 3014. The discharge section 3014 of this embodiment is inclined downward, and rectangular holes are provided at both ends of the separation box 2 for the support plate 301 to pass through, and the stripped metal load layer is collected by the first receiving hopper 5 through the discharge section 3014.

[0062] Furthermore, a transition section 3015 is provided between the first inclined plate 3011 and the second inclined plate 3012, that is, the corner of the support plate 301, and a long groove 3016 is provided on the transition section 3015 along the direction of the support plate 301. The rare metal catalyst is arranged above the long groove 3016, and the width of the long groove 3016 is smaller than that of the rare metal catalyst. The stripped metal load layer can fall into the bottom of the separation box 2 through the long groove 3016.

[0063] In addition, if Figure 6 to Figure 7 As shown, a second driving part 7 is provided on one of the scraping parts 4. Both scraping parts 4 are provided with a transmission wheel and a chain meshing with the transmission wheel. The second driving part 7 is fixedly connected to the separation box 2 through a mounting plate, and the second driving part 7 drives the two scraping parts 4 to rotate relative to each other. When the two scraping parts 4 rotate to peel off the rare precious metal catalyst, the rare precious metal catalyst is always in the transition section 3015 of the support plate 301. The two scraping parts 4 can rotate relative to each other to further keep the rare precious metal catalyst in the transition section 3015 of the support plate 301, thereby improving the scraping effect.

[0064] Furthermore, the second discharge port is a plurality of through holes provided on the bottom plate of the separation box 2. The through holes can facilitate the powdered metal load layer to fall into the second receiving hopper 6 for easy collection.

[0065] The scraping and brushing part 4 includes a rotating roller 401 and a brush 402 arranged along the circumference of the rotating roller 401. The brush 402 of this embodiment is a steel brush. Generally speaking, the active metal is about 2 to 5 μm on the surface of the catalyst. The carrier of this embodiment uses aluminum oxide. After the carrier is stripped of the rare and precious metals, the rare and precious metals are stripped into powder as a load layer, collected, dissolved and reused. The carrier will continue to load other load layers, such as metal active micro iodine, other precious metals, etc., and use them as new catalysts.

[0066] The separation device of this embodiment can avoid the defect of the prior art that the carrier is destroyed and cannot be reused when the catalyst is recovered by chemical methods. In addition, the environmental pollution caused by chemical methods can be avoided. The defect of the prior art physical stripping method that the stripping effect of the support layer is poor can be avoided, and the stripping effect can be improved while improving the utilization rate of the waste catalyst.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste catalyst metal support layer separation device, characterized in that: The invention comprises a seat body (1), a separation box (2) obliquely arranged on the seat body (1), the separation box (2) having a separation chamber, the separation chamber being provided with at least one separation device, the separation device comprising a transmission mechanism (3) for conveying a rare metal catalyst, and scraping parts (4) for stripping the rare metal catalyst being provided on both sides of the transmission mechanism (3); While the transmission mechanism (3) transports the precious metal catalyst to move along the length direction of the separation box (2), the two scraping parts (4) are driven to rotate and scrape the surface of the precious metal catalyst; The scraping and brushing part (4) is pivotally connected to the separation box (2), and the separation box (2) is provided with a first discharge port and a second discharge port, wherein the first discharge port is arranged at the output end of the transmission mechanism (3), and the base body (1) is provided with a first receiving hopper (5) located at the lower end of the first discharge port, and the first receiving hopper (5) is used to hold the rare and precious metal catalyst after the metal load layer is stripped; The second discharge port is arranged at the bottom of the separation box (2), and the bottom surface of the separation box (2) is connected to a second receiving hopper (6). After the metal load layer is peeled off, it enters the second receiving hopper (6) through the second discharge port.

2. The waste catalyst metal support layer separation device according to claim 1, characterized in that: The transmission mechanism (3) comprises a support plate (301) arranged along the length direction of the separation box (2), a transmission belt (302) sleeved on the support plate (301), and a transmission mechanism (303) for driving the transmission belt (302) to rotate in a circular manner.

3. A waste catalyst metal support layer separation device according to claim 2, characterized in that: The transmission mechanism (303) comprises a first driving part (3031) arranged at one end of the support plate (301), the first driving part (3031) drives the transmission belt (302) to rotate, and a positioning part for limiting the displacement of the rare metal catalyst is provided on the side of the transmission belt (302) facing away from the support plate (301); A driven wheel is provided at the other end of the support plate (301); a driving wheel is connected to the power output end of the first driving part (3031); and the transmission belt (302) is tooth-engaged with the driven wheel and the driving wheel for transmission; The first driving part (3031) is fixedly connected to one end of the support plate (301) via a support.

4. A waste catalyst metal support layer separation device according to claim 3, characterized in that: A plurality of the positioning parts are arranged at intervals on the conveyor belt (302); The positioning portion comprises two positioning plates (3032) arranged on the conveying belt (302) at intervals along the conveying direction, and the rare metal catalyst is arranged between the two positioning plates (3032).

5. The waste catalyst metal support layer separation device according to claim 3, characterized in that: The support plate (301) is in a "V" shape, and comprises a first inclined plate (3011) and a second inclined plate (3012); The two transmission mechanisms (303) are respectively arranged on the first inclined plate (3011) and the second inclined plate (3012) in opposition to each other.

6. The waste catalyst metal support layer separation device according to claim 5, characterized in that: The support plate (301) comprises a feed section (3013) extending outward from the separation box (2) at one end, and a discharge section (3014) extending outward from the separation box (2) at the other end; The first receiving hopper (5) is arranged below the discharging section (3014).

7. The waste catalyst metal support layer separation device according to claim 5, characterized in that: A transition section (3015) is provided between the first inclined plate (3011) and the second inclined plate (3012), and a long groove (3016) is provided on the transition section (3015) along the direction of the support plate (301); The rare precious metal catalyst is arranged above the long groove (3016), and the width of the long groove (3016) is smaller than that of the rare precious metal catalyst.

8. The waste catalyst metal support layer separation device according to claim 5, characterized in that: A second driving part (7) is provided on the scraping part (4); The two scraping and brushing parts (4) are each provided with a transmission wheel and a chain meshing with the transmission wheel for transmission. The second driving part (7) is fixedly connected to the separation box (2) via a mounting plate. The second driving part (7) drives the two scraping and brushing parts (4) to rotate relative to each other.

9. The waste catalyst metal support layer separation device according to claim 1, characterized in that: The scraping and brushing part (4) comprises a rotating roller (401) and a brush (402) arranged along the circumference of the rotating roller (401).

10. The waste catalyst metal support layer separation device according to claim 1, characterized in that: The second discharge ports are a plurality of through holes provided on the bottom plate of the separation box (2).

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