A spent catalyst treatment device
By combining flattening and shredding rollers, the problem of low processing efficiency in traditional three-way catalytic converters is solved, achieving efficient catalyst recycling, reducing equipment wear, and improving shredding efficiency and particle uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JIUDA TECH CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional three-way catalytic converters are inefficient and prone to damaging the shredding device, making it difficult to efficiently recycle the catalyst.
The process employs a combination of shredding rollers and extrusion components. The three-way catalytic converter is first flattened and then shredded. The hydraulic cylinder drives the gears and racks to perform pretreatment of the three-way catalytic converter, reducing its size and strength, and decreasing the load on the equipment. Impurities between the tooth plates are also cleaned by inserting the teeth.
It improves the shredding efficiency and particle uniformity of the three-way catalytic converter, reduces equipment wear, ensures long-term efficient and stable operation of the equipment, and facilitates subsequent catalyst recovery.
Smart Images

Figure CN224487124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of processing device technology, and more specifically, to a waste catalyst processing device. Background Technology
[0002] With the rapid development of the automotive industry, the number of scrapped vehicles is constantly increasing, leading to a growing problem of automotive parts recycling and disposal. Among these components, the three-way catalytic converter, as a core part of the automotive exhaust purification system, is widely used in gasoline vehicles to convert harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides in exhaust gases into harmless gases. Scrapped three-way catalytic converters contain a large amount of metallic catalysts (such as platinum, palladium, and rhodium), making them highly valuable for recycling.
[0003] Traditional three-way catalytic converters are often processed by direct crushing or shredding. However, since the outer shell of a three-way catalytic converter is usually covered with stainless steel or high-strength metal materials, and the inside is a ceramic honeycomb structure, the structure is hard and complex. Without pretreatment, direct shredding is not only inefficient, but also easily damages the shredding device. Summary of the Invention
[0004] The purpose of this invention is to provide a waste catalyst treatment device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A waste catalyst treatment device includes a housing, within which symmetrically arranged rotatable shredding rollers are symmetrically arranged, each shredding roller having a plurality of evenly spaced toothed blades. Support columns are located at the four corners of the housing, and a support plate is located above each support column. An extrusion frame is located on the support plate, and a retractable extrusion plate is also located on the support plate. A discharge port connected to the extrusion frame is located on the support plate, and a rotating rod is located within the discharge port. A stop valve for controlling the opening and closing of the discharge port is located on the rotating rod. A drive assembly for driving the rotating rod to rotate is located on the extrusion frame. Mounting rods are located on both sides of the shredding rollers within the housing, and a plurality of evenly spaced inserts are provided on the mounting rods that extend between the toothed blades. A limiting assembly for limiting the movement of the mounting rods is located on the housing.
[0007] Furthermore, the drive assembly includes a guide plate disposed on the side of the extrusion frame, a T-slot disposed in the guide plate, a slidable T-block disposed in the T-slot, a rack disposed on the T-block, one end of the rotating rod extending from the side of the support plate, and a first gear meshing with the rack at the end of the rotating rod extending from the side of the support plate.
[0008] Furthermore, the support plate is provided with a first hydraulic cylinder for driving the extrusion plate to move, and the support plate is provided with a second hydraulic cylinder for driving the rack to move.
[0009] Furthermore, the limiting component includes a limiting groove provided in the housing, and the two ends of the mounting rod can slide up and down along the limiting groove. A mounting shell connected to the housing is provided opposite to the housing. A telescopic rod extending through the housing and into the housing is provided inside the mounting shell. A push plate located inside the mounting shell is provided on the telescopic rod. A sealing plate is provided at the end of the mounting shell away from the housing. The end of the telescopic rod away from the housing extends through the sealing plate. A spring sleeved on the telescopic rod is provided between the push plate and the sealing plate.
[0010] Furthermore, the end of the telescopic rod that extends into the housing is provided with a bevel.
[0011] Furthermore, a pull rod is provided at the end of the telescopic rod that extends through the sealing plate.
[0012] Furthermore, a discharge port is provided at the bottom of the shell.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model utilizes a second hydraulic cylinder to move a rack, which in turn rotates a first gear. The rotation of the first gear then rotates a rotating rod, which in turn rotates a baffle to close the discharge port. After the baffle closes the discharge port, the three-way catalytic converter is placed in the extrusion frame. Next, the first hydraulic cylinder pushes an extrusion plate towards the extrusion frame, flattening the three-way catalytic converter. After flattening, the first hydraulic cylinder resets the extrusion plate, and then the second hydraulic cylinder resets the rack. Once the rack is reset, the baffle opens the discharge port, allowing the flattened three-way catalytic converter to pass through the discharge port and be guided by the baffle to the space between two shredding rollers. The rotation of the shredding rollers drives the toothed blades to rotate, thus shredding the flattened three-way catalytic converter. By first flattening the three-way catalytic converter, its overall structure is effectively disrupted, reducing its volume and strength, decreasing the equipment load during shredding, and improving shredding efficiency and particle uniformity.
[0015] This invention addresses the issue that during the shredding process of a three-way catalytic converter, metal fragments and other impurities are often generated and tend to accumulate between the tooth plates. By inserting inserts into the spaces between the tooth plates, the inserts can continuously clean the metal fragments and other impurities between the tooth plates as the tooth plates rotate, thereby reducing wear on the tooth plates and ensuring long-term, efficient, and stable operation of the equipment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a waste catalyst treatment device according to the present invention.
[0017] Figure 2 This is a top view of the internal components of the housing in this utility model.
[0018] Figure 3This is a structural schematic diagram of the support plate and its upper components in this utility model.
[0019] Figure 4 This is an exploded structural diagram of the mounting rod and insert teeth in this utility model.
[0020] Figure 5 This is a schematic diagram of the internal components of the mounting shell in this utility model.
[0021] The meanings of the labels in the diagram are as follows: 100, shell; 101, shredding roller; 102, toothed blade; 103, support column; 104, support plate; 105, extrusion frame; 106, extrusion plate; 107, rotating rod; 108, stop gate; 109, mounting rod; 110, gear; 111, second gear; 200, guide plate; 201, T-block; 202, rack; 203, first gear; 204, first hydraulic cylinder; 205, second hydraulic cylinder; 300, limiting groove; 301, mounting shell; 302, telescopic rod; 303, push plate; 304, sealing plate; 305, spring; 306, inclined plane; 307, pull rod. Detailed Implementation
[0022] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.
[0023] The following is in conjunction with the appendix Figures 1-5 This embodiment will be described in further detail.
[0024] Please see Figures 1-5 This embodiment of a waste catalyst treatment device includes a housing 100. Rotatable shredding rollers 101 are symmetrically arranged inside the housing 100. The shredding rollers 101 are mounted inside the housing 100 via bearings. Multiple toothed blades 102 are evenly spaced on the shredding rollers 101, and the toothed blades 102 are fixedly connected to the shredding rollers 101. Support columns 103 are located at the four corners of the housing 100 and are fixedly connected to the housing 100. Support plates 104 are located above the support columns 103 and are fixedly connected to the support columns 103. The support plate 104 is provided with an extrusion frame 105, which is fixedly connected to the support plate 104. The support plate 104 is provided with a telescopic extrusion plate 106. The support plate 104 is provided with a discharge port that communicates with the extrusion frame 105. A rotating rod 107 is provided inside the discharge port. The rotating rod 107 is mounted on the support plate 104 through a bearing. A baffle 108 for controlling the opening and closing of the discharge port is provided on the rotating rod 107. The baffle 108 is fixedly connected to the rotating rod 107. The extrusion frame 105 is provided with a drive assembly for driving the rotating rod 107 to rotate.
[0025] The drive assembly includes a guide plate 200 disposed on the side of the extrusion frame 105. The guide plate 200 is fixedly connected to the extrusion frame 105. A T-slot is provided in the guide plate 200. A slidable T-block 201 is provided in the T-slot. A rack 202 is provided on the T-block 201. The rack 202 is fixedly connected to the T-block 201. One end of the rotating rod 107 extends out from the side of the support plate 104. The end of the rotating rod 107 extending out from the side of the support plate 104 is provided with a first gear 203 that meshes with the rack 202. The first gear 203 is fixedly connected to the rotating rod 107.
[0026] In this embodiment, the support plate 104 is provided with a first hydraulic cylinder 204 for driving the extrusion plate 106 to move. The output end of the first hydraulic cylinder 204 is fixedly connected to the extrusion plate 106. The support plate 104 is provided with a second hydraulic cylinder 205 for driving the rack 202 to move. The output end of the second hydraulic cylinder 205 is fixedly connected to the rack 202.
[0027] In this embodiment, when processing the waste three-way catalytic converter, the second hydraulic cylinder 205 pushes the rack 202 to move. The movement of the rack 202 drives the first gear 203 to rotate. The rotation of the first gear 203 drives the rotating rod 107 to rotate. The rotation of the rotating rod 107 drives the baffle 108 to rotate, closing the discharge port. After the baffle 108 closes the discharge port, the three-way catalytic converter is placed in the extrusion frame 105. Then, the first hydraulic cylinder 204 pushes the extrusion plate 106 to move towards the extrusion frame 105, flattening the three-way catalytic converter. After flattening, the first hydraulic cylinder 204 drives the extrusion plate 106 to reset, followed by the second hydraulic cylinder 205 driving the rack 202 to reset. Once the rack 202 is reset, the baffle 108 opens the discharge port. The flattened three-way catalytic converter passes through the discharge port and is guided by the baffle 108 to the space between the two shredding rollers 101. The rotation of the shredding rollers 101 drives the rack 102 to rotate, thus shredding the flattened three-way catalytic converter for subsequent recovery of the metal catalyst. In this embodiment, flattening the three-way catalytic converter first effectively disrupts its overall structure, reduces its volume and strength, decreases the equipment load during shredding, and helps improve shredding efficiency and particle uniformity.
[0028] In this embodiment, one end of the shredding roller 101 extends out of the housing 100. The end of the shredding roller 101 extending out of the housing 100 is provided with a meshing second gear 111. A motor is provided outside the housing 100 to drive one of the shredding rollers 101 to rotate. When the motor drives one of the two shredding rollers 101 to rotate, the two symmetrically arranged shredding rollers 101 can be driven to rotate in opposite directions through the cooperation of the second gear 111, thereby driving the toothed plate 102 to rotate and shred the flattened three-way catalytic converter.
[0029] Please see Figures 1-5 In this embodiment, the housing 100 is provided with mounting rods 109 located on both sides of the shredding roller 101. Multiple insert teeth 110 extending into the toothed plates 102 are evenly spaced on the mounting rods 109. The insert teeth 110 are fixedly connected to the mounting rods 109. The housing 100 is provided with a limiting component for limiting the mounting rods 109.
[0030] The limiting assembly includes a limiting groove 300 on the inner wall of the housing 100. Both ends of the mounting rod 109 can slide up and down along the limiting groove 300. A mounting shell 301, connected to the housing 100, is provided opposite to the housing 100. The mounting shell 301 is fixedly connected to the housing 100. A telescopic rod 302, penetrating the housing 100 and extending into it, is provided inside the mounting shell 301. A push plate 303, located inside the mounting shell 301, is provided on the telescopic rod 302. The push plate 303 is fixedly connected to the telescopic rod 302. A sealing plate 304 is provided at the end of the mounting shell 301 away from the housing 100. 304 can be connected to the mounting housing 301 by screws so that the components inside the mounting housing 301 can be installed. The end of the telescopic rod 302 away from the housing 100 extends through the sealing plate 304. A spring 305 is provided between the push plate 303 and the sealing plate 304 and is sleeved on the telescopic rod 302. The spring 305 pushes the telescopic rod 302 to extend. The push plate 303 and the sealing plate 304 are respectively provided with rubber pads that contact the two ends of the spring 305. The rubber pads are used to buffer the spring 305 to prevent the spring 305 from shaking, thereby affecting its limit on the mounting rod 109.
[0031] In this embodiment, the end of the telescopic rod 302 that extends into the housing 100 is provided with a slope 306, and the end of the telescopic rod 302 that extends through the sealing plate 304 is provided with a pull rod 307, which is fixedly connected to the telescopic rod 302.
[0032] In this embodiment, when installing the insert 110 in the housing 100, both ends of the mounting rod 109 are inserted into the corresponding limiting groove 300. Then, the mounting rod 109 is pressed down so that the lower end face of the mounting rod 109 contacts the inclined surface 306. As the mounting rod 109 continues to be pressed down, the lower end face of the mounting rod 109 can squeeze the inclined surface 306, causing the telescopic rod 302 to retract into the mounting housing 301. When the inclined surface 306 at the end of the telescopic rod 302 is completely retracted into the mounting housing 301, both ends of the mounting rod 109 are completely stuck at the bottom of the limiting groove 300. At this time, the spring 305 can push the push plate 303 to move the telescopic rod 302 towards the housing 100, so that the inclined surface 306 at the end of the telescopic rod 302 presses against the upper end face of the mounting rod 109, thereby limiting the mounting rod 109 and completing the installation of the insert 110.
[0033] In this embodiment, when the insert 110 extends between the tooth plates 102, there is a certain gap between the two sides of the insert 110 and the adjacent tooth plates 102, which does not affect the rotation of the tooth plates 102. Since the three-way catalytic converter often generates metal fragments and other impurities during the shredding process, these impurities are easily accumulated between the tooth plates 102. By extending the insert 110 between the tooth plates 102, as the tooth plates 102 rotate, the insert 110 can continuously clean the metal fragments and other impurities between the tooth plates 102, thereby reducing the wear of the tooth plates 102 and ensuring the long-term efficient and stable operation of the equipment.
[0034] In this embodiment, when it is necessary to clean the insert tooth 110, the pull rod 307 can be pulled to retract the inclined surface 306 at the end of the telescopic rod 302 into the mounting shell 301, thereby releasing the restriction on the mounting rod 109. After the restriction is released, the mounting rod 109 is pulled upward to move the insert tooth 110 upward, so that the insert tooth 110 can be taken out for cleaning.
[0035] Please see Figures 1-5 In this embodiment, a discharge port is provided at the bottom of the housing 100.
[0036] In this embodiment, the shredded three-way catalytic converter can fall out of the discharge port and be collected so that the metal catalyst inside can be recycled in the future.
[0037] In use, this invention moves the rack 202 via the second hydraulic cylinder 205. The movement of the rack 202 drives the first gear 203 to rotate, which in turn drives the rotating rod 107 to rotate. The rotating rod 107 then rotates the baffle 108, closing the discharge port. After the baffle 108 closes the discharge port, the three-way catalytic converter is placed inside the extrusion frame 105. Then, the first hydraulic cylinder 204 pushes the extrusion plate 106 towards the extrusion frame 105, thus moving the three-way catalytic converter... The catalyst is flattened. After flattening, the first hydraulic cylinder 204 drives the extrusion plate 106 to reset, and then the second hydraulic cylinder 205 drives the rack 202 to reset. After the rack 202 is reset, the gate 108 can open the discharge port. The flattened three-way catalyst passes through the discharge port and is guided by the gate 108 to be guided between the two shredding rollers 101. The rotation of the shredding rollers 101 drives the toothed plate 102 to rotate, thus shredding the flattened three-way catalyst.
[0038] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.
Claims
1. A waste catalyst treatment device, comprising a housing (100), characterized in that: A rotatable shredding roller (101) is symmetrically arranged inside the housing (100). Multiple toothed plates (102) are evenly spaced on the shredding roller (101). Support columns (103) are located at the four corners of the housing (100). A support plate (104) is located above the support column (103). An extrusion frame (105) is located on the support plate (104). A retractable extrusion plate (106) is located on the support plate (104). A discharge port connected to the extrusion frame (105) is located on the support plate (104). The discharge port contains... There is a rotating rod (107), and a stop (108) for controlling the opening and closing of the feed port is provided on the rotating rod (107). A drive assembly for driving the rotating rod (107) to rotate is provided on the extrusion frame (105). The housing (100) is provided with mounting rods (109) located on both sides of the shredding roller (101). Multiple insert teeth (110) extending between the toothed plates (102) are evenly spaced on the mounting rods (109). A limiting assembly for limiting the mounting rods (109) is provided on the housing (100).
2. The waste catalyst treatment device according to claim 1, characterized in that: The drive assembly includes a guide plate (200) disposed on the side of the extrusion frame (105), the guide plate (200) is provided with a T-slot, the T-slot is provided with a slidable T-block (201), the T-block (201) is provided with a rack (202), one end of the rotating rod (107) extends out from the side of the support plate (104), and the end of the rotating rod (107) extending out from the side of the support plate (104) is provided with a first gear (203) that meshes with the rack (202).
3. The waste catalyst treatment device according to claim 2, characterized in that: The support plate (104) is provided with a first hydraulic cylinder (204) for driving the extrusion plate (106) to move, and the support plate (104) is provided with a second hydraulic cylinder (205) for driving the rack (202) to move.
4. The waste catalyst treatment device according to claim 1, characterized in that: The limiting component includes a limiting groove (300) provided in the housing (100). The two ends of the mounting rod (109) can slide up and down along the limiting groove (300). A mounting shell (301) connected to the housing (100) is provided opposite to the housing (100). A telescopic rod (302) that penetrates the housing (100) and extends into the housing (100) is provided in the mounting shell (301). A push plate (303) located in the mounting shell (301) is provided on the telescopic rod (302). A sealing plate (304) is provided at the end of the mounting shell (301) away from the housing (100). The end of the telescopic rod (302) away from the housing (100) extends through the sealing plate (304). A spring (305) sleeved on the telescopic rod (302) is provided between the push plate (303) and the sealing plate (304).
5. The waste catalyst treatment device according to claim 4, characterized in that: The end of the telescopic rod (302) that extends into the housing (100) is provided with a bevel (306).
6. The waste catalyst treatment device according to claim 4, characterized in that: The telescopic rod (302) extends through the sealing plate (304) and has a pull rod (307) at its extended end.
7. The waste catalyst treatment device according to claim 1, characterized in that: The shell (100) has a discharge port at the bottom.