A processing method for recycling a three-way catalyst housing

Abstract

The present application relates to the technical field of recycling of three-way catalyst housing, in particular to a processing method for recycling three-way catalyst housing. The present application can solve the problem that the current shrinkable hoop is used to tightly shrink the new carrier, so that the carrier is slowly filled into the housing. During the filling process, on the one hand, the hoop needs to be manually screwed to tighten it, which is low in efficiency. Secondly, during the process of filling the tightened carrier into the housing, the edges of a part of the carrier may be placed on the edges of the housing, which may cause the carrier to wrinkle or be damaged by the housing during the process of extruding the carrier into the housing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of recycling three-way catalyst housing, in particular to a processing method for recycling three-way catalyst housing. BACKGROUND

[0002] Three-way catalyst alleviates the damage of automobile exhaust to the natural environment. Some chemical substances in automobile exhaust pollute the atmosphere. In order to treat harmful chemical substances in automobile exhaust, an automobile exhaust purification device appears. Three-way catalyst is a main component of the automobile exhaust purification device, which can greatly reduce the pollution degree of exhaust to the atmosphere.

[0003] The three-way catalyst is divided into four parts, which consists of a housing, a damping layer, a carrier and a catalyst coating. The most important part of the three-way catalyst is the carrier, which is installed in the housing and is a porous ceramic material. It does not participate in the catalytic reaction itself, but is covered with a layer of catalyst coating. The current housing is mainly composed of an upper housing, a middle housing and a lower housing, and the three are usually integrally formed (see Figure 7 and Figure 8 ). The inside of the middle housing is mainly filled with the carrier.

[0004] At present, the original catalyst housing is cut, and the carrier inside the housing is replaced. After replacement, the housing is re-welded to make the catalyst housing recyclable. It is difficult to fill the carrier after cutting. The reason is that the diameter of the carrier is generally larger than the diameter of the middle housing, so that the carrier can be stably filled in the inside of the housing, and the filtering effect of the carrier on the passing exhaust is ensured. At present, the upper housing and the middle housing are separated, and then the carrier inside the middle housing is taken out. A shrinkable clamp is used to tightly shrink the new carrier to slowly fill it into the housing. During the filling process, the clamp needs to be manually twisted to tighten it, which is low in efficiency. Secondly, after the carrier is tightened, a part of the edge of the carrier will be on the edge of the housing during the filling process. During the process of extruding the carrier into the housing, the carrier is prone to wrinkling or damage.

[0005] Therefore, in order to improve the utilization efficiency of the catalyst housing and ensure the use effect of the catalyst, the present application provides a processing method for recycling three-way catalyst housing. SUMMARY

[0006] In view of the above problems, the embodiment of the present application provides a processing method for recycling three-way catalyst housing to solve the problems of low carrier filling efficiency or carrier damage during the carrier filling process. In order to achieve the above purpose, the embodiment of the present application provides the following technical scheme:

[0007] The embodiment of the present application provides a processing method for recycling a three-way catalyst housing, comprising the following steps:

[0008] S1, cutting the three-way catalyst housing: using a cutting machine to cut the scrapped three-way catalyst housing along the circumferential direction thereof; the cutting seam is kept neat during the cutting process.

[0009] S2, taking out the carrier inside the housing: taking out the carrier inside the disassembled scrapped catalyst housing and centrally processing.

[0010] S3, filling new carriers: using a catalyst filling device and combining with a guide cylinder to fill new carriers into the cut catalyst housing.

[0011] S4, welding the catalyst housing: welding the carrier-filled housing to ensure the uniformity of the weld.

[0012] In step S3, the catalyst filling device comprises a base, a fixing mechanism and a filling mechanism; the upper end of the base is provided with the fixing mechanism and the filling mechanism, and the filling mechanism is located above the fixing mechanism.

[0013] According to an advantageous embodiment, the fixing mechanism comprises four side plates arranged in a matrix manner on the base, and an arc-shaped fixing block is arranged on each of the two side plates opposite to each other and the side plate on the right through sliding fit, and an arc-shaped fixing block is arranged on the side plate on the left through fixing, wherein the arc-shaped fixing blocks on the two side plates opposite to each other are connected with springs, and a guide rod is symmetrically arranged on the outer wall of the side plates on both sides of the spring, and the guide rod is slidingly connected with the corresponding arc-shaped fixing block; a guide rail is slidingly arranged on the side plate on the right, and the guide rail is fixedly connected with the arc-shaped fixing block, and a connecting plate is fixedly installed at the other end of the guide rail, and the connecting plate is connected with the side plate on the right through an electric telescopic rod; the fixing mechanism further comprises a lifting platform arranged on the base and capable of adjusting the height.

[0014] According to an advantageous embodiment, the filling mechanism comprises an L-shaped plate arranged upside down on the base, and a sliding rail with a guide groove is arranged on the lower end face of the horizontal segment of the L-shaped plate, and a toothed rod is slidingly arranged in the sliding rail, and an auxiliary platform is arranged at the lower end of the toothed rod, and a rotating seat is rotatably arranged on the lower end face of the auxiliary platform, and an adjusting motor is arranged in the auxiliary platform, and the output shaft of the adjusting motor is connected with the rotating seat; a first pressing disc, a second pressing disc, a third pressing disc and a fourth pressing disc are sequentially arranged on the lower end face of the rotating seat in the clockwise direction thereof, and the first pressing disc is located directly above the lifting platform.

[0015] According to an advantageous embodiment, the filling mechanism further comprises a driving motor arranged in the middle of the vertical segment of the L-shaped plate through a motor base, and a single-toothed turntable is fixedly installed on the output shaft of the driving motor, and the single-toothed turntable cooperates with the toothed rod.

[0016] According to an advantageous embodiment, the upper end of the arc-shaped fixing block is provided with a chamfer facilitating the insertion of the catalytic converter shell.

[0017] Compared with the prior art, the recycling processing method of the three-way catalytic converter shell has the beneficial effects that: 1. The fixing mechanism can automatically abut against the shell, and during the process of just putting in the shell, the arc-shaped fixing blocks on the front and back sides can limit the shell through the spring abutting against the arc-shaped fixing blocks, so as to ensure the preliminary stability of the shell; and the setting of the lifting platform can freely adjust the shell of different heights; and the applicability of the fixing mechanism to the shell is further improved.

[0018] 2. The filling mechanism can effectively prevent the carrier from being damaged during the process of being filled into the middle shell, and the intermittent movement of the lower end of the pressing plate can be controlled through the cooperation of the single-toothed turntable and the toothed rod, so as to promote the complete and rapid filling of the carrier into the inside of the middle shell; and the quality of the packaged catalytic converter is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0020] Figure 1 is a step diagram of the recycling processing method of the three-way catalytic converter shell.

[0021] Figure 2 is a first perspective view of the catalytic converter filling device.

[0022] Figure 3 is a second perspective view of the catalytic converter filling device.

[0023] Figure 4 is a third perspective view of the catalytic converter filling device.

[0024] Figure 5 is a sectional view between the auxiliary table and the lower end pressing plate thereof.

[0025] Figure 6 is a sectional view between the single-toothed turntable and the toothed rod of the present application.

[0026] Figure 7 is a front view of the recycled three-way catalytic converter shell.

[0027] Figure 8 is Figure 7 a sectional view.

[0028] Figure 9 State change diagram for recycling of a three-way catalyst housing.

[0029] The drawings show: 1, guide cylinder; 2, base; 3, fixing mechanism; 4, filling mechanism; 31, side plate; 32, arc-shaped fixing block; 33, guide rod; 34, guide rail; 35, connecting plate; 36, electric telescopic rod; 37, lifting platform; 41, L-shaped plate; 42, sliding rail; 43, toothed rod; 44, auxiliary platform; 45, rotating seat; 46, adjusting motor; 47, first pressing disc; 48, second pressing disc; 49, third pressing disc; 40, fourth pressing disc; 401, driving motor; 402, single-toothed rotating disc; 51, upper housing; 52, middle housing; 53, lower housing. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objectives, features and advantages of the present application more apparent and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0031] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 9 , a processing method for recycling a three-way catalyst housing comprises the following steps:

[0032] S1, cutting the three-way catalyst housing: using a cutting machine to cut the scrapped three-way catalyst housing along its circumferential direction; keep the cutting seam neat during the cutting process.

[0033] S2, taking out the internal carrier of the housing: taking out and centrally processing the internal carrier of the disassembled scrapped catalyst housing.

[0034] S3, filling new carriers: using a catalyst filling device and combining with the guide cylinder 1 to fill new carriers into the cut catalyst housing.

[0035] S4, welding the catalyst housing: welding the housing after filling the carriers to ensure the uniformity of the weld;

[0036] The catalyst filling device involved in step S3 comprises a base 2, a fixing mechanism 3 and a filling mechanism 4; the upper end of the base 2 is provided with the fixing mechanism 3 and the filling mechanism 4, and the filling mechanism 4 is located above the fixing mechanism 3.

[0037] Referring to Figure 3And Figure 4 The fixing mechanism 3 comprises four side plates 31 arranged in a matrix on the base 2, an arc-shaped fixing block 32 is arranged on each of the two side plates 31 at the front and back and the side plate 31 on the right through sliding fit, and the arc-shaped fixing block 32 is arranged on the side plate 31 on the left through fixing, wherein the arc-shaped fixing block 32 is connected to each of the two side plates 31 at the front and back through a spring, and a guide rod 33 is symmetrically arranged on the outer wall of each of the two side plates 31 at the front and back, and the guide rod 33 is slidingly connected to the corresponding arc-shaped fixing block 32; the guide rail 34 is slidingly arranged on the side plate 31 on the right, and the guide rail 34 is fixedly connected to the arc-shaped fixing block 32, the other end of the guide rail 34 is fixedly installed with the connecting plate 35, and the connecting plate 35 is connected to the side plate 31 on the right through the electric telescopic rod 36; the fixing mechanism 3 further comprises a lifting platform 37 arranged on the base 2 and capable of adjusting the height.

[0038] When the fixing catalyst housing is fixed, the carrier in the remaining housing after the upper housing 51 is removed is taken out, the remaining part of the housing is fixed between the arc-shaped fixing blocks 32 and is placed on the lifting platform 37, the height of the lifting platform 37 is adjusted, the arc-shaped fixing block 32 on the right is driven to move by the electric telescopic rod 36 to tightly abut against the remaining part of the housing; the fixing mechanism 3 arranged can automatically abut against the housing, and in the process of just placing the housing, the arc-shaped fixing blocks 32 on the front and back are limited by the spring to limit the housing, so that the preliminary stability of the housing is ensured; and the lifting platform 37 can be freely adjusted according to the height of the housing; the applicability of the fixing mechanism 3 to the housing is further improved.

[0039] Referring to Figure 4 The upper end of the arc-shaped fixing block 32 is provided with a chamfer for facilitating the insertion of the catalyst housing; the upper end of the arc-shaped fixing block 32 is provided with a chamfer, which can facilitate the quick insertion of the housing and will not cause damage or impact to the outer wall of the housing.

[0040] Referring to Figure 2 , Figure 3 , Figure 5 , Figure 6 The filling mechanism 4 comprises an L-shaped plate 41 arranged upside down on the base 2, the horizontal section of the L-shaped plate 41 is provided with a slide rail 42 with a guide groove at the lower end face, a toothed rod 43 is slidingly arranged in the slide rail 42, the lower end of the toothed rod 43 is provided with an auxiliary table 44, the lower end face of the auxiliary table 44 is rotatably provided with a rotating seat 45, an adjusting motor 46 is arranged in the auxiliary table 44, and the output shaft of the adjusting motor 46 is connected to the rotating seat 45; a first pressing disc 47, a second pressing disc 48, a third pressing disc 49 and a fourth pressing disc 40 are sequentially arranged on the lower end face of the rotating seat 45 in the clockwise direction, and the first pressing disc 47 is located directly above the lifting platform 37.

[0041] Referring to Figure 3 And Figure 6 The filling mechanism 4 further comprises a driving motor 401 arranged in the middle of the vertical section of the L-shaped plate 41 through the motor base, and the output shaft of the driving motor 401 is fixedly installed with a single-tooth rotating disc 402, and the single-tooth rotating disc 402 is matched with the toothed rod 43.

[0042] After the shell is fixed, when the carrier is filled into the inside of the middle shell 52, the guide cylinder 1 is first inserted into the upper end of the middle shell 52, and then the carrier is placed into the inside of the guide cylinder 1; the rotating seat 45 is driven to rotate by the adjusting motor 46, so that the first pressing disc 47 is located directly above the lifting platform 37; then the single-tooth rotating disc 402 is driven to rotate by the driving motor 401, so that the toothed rod 43 is lowered to gradually complete the feeding of the carrier; when the carrier is completely fed into the inside of the guide cylinder 1, the second pressing disc 48 is switched to continue the feeding; when the carrier is partially fed into the inside of the middle shell 52, the third pressing disc 49 is switched; finally, the fourth pressing disc 40 is switched to make the carrier completely enter into the inside of the middle shell 52; finally, the guide cylinder 1 is taken out, and the upper shell 51 and the middle shell 52 are welded; the filling mechanism 4 arranged can effectively prevent the carrier from being damaged during the filling into the middle shell 52, and the intermittent movement of the pressing disc at the lower end can be controlled through the cooperation of the single-tooth rotating disc 402 and the toothed rod 43, so that the carrier is completely and quickly filled into the inside of the middle shell 52; the quality of the packaged catalyst.

[0043] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "vertical, vertical, horizontal", "top, bottom" and "end, side" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and in the absence of contrary indications, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0044] In the description of the present application, it should be understood that unless otherwise specified and limited, the terms "arrangement", "connection", "installation", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, or slidingly connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus, equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A method for processing a three-way catalytic converter shell for recycling, characterized in that: Includes the following steps: S1. Cutting the three-way catalytic converter housing: Use a cutting machine to cut the scrapped three-way catalytic converter housing along its circumference; keep the cut seam neat during the cutting process; S2. Remove the carrier inside the shell: Remove the carrier inside the disassembled and scrapped catalyst shell and process it centrally; S3, Filling with new support: Using a catalyst filling device and in conjunction with a guide tube (1), fill the new support into the cut catalyst shell; S4. Welding the catalyst shell: Weld the shell after filling the carrier to ensure the uniformity of the weld. The catalyst filling device involved in step S3 includes a base (2), a fixing mechanism (3) and a filling mechanism (4); the upper end of the base (2) is provided with the fixing mechanism (3) and the filling mechanism (4), and the filling mechanism (4) is located above the fixing mechanism (3); The filling mechanism (4) includes an L-shaped plate (41) inverted on the base (2). The lower end of the horizontal section of the L-shaped plate (41) is provided with a slide rail (42) with a guide groove. A toothed rod (43) is slidably provided inside the slide rail (42). An auxiliary platform (44) is provided at the lower end of the toothed rod (43). A rotating seat (45) is rotatably provided on the lower end of the auxiliary platform (44). An adjusting motor (46) is provided inside the auxiliary platform (44). The output shaft of the adjusting motor (46) is connected to the rotating seat (45). A first pressing plate (47), a second pressing plate (48), a third pressing plate (49), and a fourth pressing plate (40) are arranged sequentially along the clockwise direction on the lower end of the rotating seat (45). The diameters of the first pressing plate (47), the second pressing plate (48), the third pressing plate (49), and the fourth pressing plate (40) are all different. The fixing mechanism (3) includes a height-adjustable lifting platform (37) mounted on the base (2), with a first pressing plate (47) located directly above the lifting platform (37); After the housing is fixed, when filling the carrier into the middle housing (52), first insert the guide tube (1) into the upper end of the middle housing (52), and then put the carrier into the guide tube (1); by adjusting the motor (46) to drive the rotating seat (45) to rotate so that the first pressing plate (47) is directly above the lifting platform (37); then the rack (43) descends to gradually complete the feeding of the carrier. When the carrier is completely fed into the guide tube (1), switch the second pressing plate (48) to continue feeding. When the carrier partially enters the middle housing (52), switch the third pressing plate (49), and finally switch the fourth pressing plate (40) to make the carrier completely enter the middle housing (52). Finally, take out the guide tube (1). Pressing plates of different diameters move intermittently to press and fill the carrier in stages.

2. The processing method for recycling a three-way catalytic converter shell according to claim 1, characterized in that: The fixing mechanism (3) further includes four side plates (31) arranged in a matrix on the base (2). Arc-shaped fixing blocks (32) are provided on the two front and rear opposite side plates (31) and the right side plate (31) by sliding engagement. Arc-shaped fixing blocks (32) are provided on the left side plate (31) by fixing. Arc-shaped fixing blocks (32) are connected to the two front and rear opposite side plates (31) by springs, and are symmetrically arranged on the outer walls of the side plates (31) on both sides of the springs. There is a guide rod (33), and the guide rod (33) is slidably connected to the corresponding arc-shaped fixing block (32); a guide rail (34) is slidably arranged on the side plate (31) on the right side, and the guide rail (34) is fixedly connected to the arc-shaped fixing block (32); a connecting plate (35) is fixedly installed at the other end of the guide rail (34), and the connecting plate (35) is connected to the side plate (31) on the right side through an electric telescopic rod (36); the fixing mechanism (3) also includes a lifting platform (37) that can be height adjusted and is set on the base (2).

3. The processing method for recycling a three-way catalytic converter shell according to claim 1, characterized in that: The filling mechanism (4) further includes a drive motor (401) mounted in the middle of the vertical section of the L-shaped plate (41) via a motor base. The output shaft of the drive motor (401) is fixedly mounted with a single-tooth turntable (402), and the single-tooth turntable (402) cooperates with the rack (43).

4. The processing method for recycling a three-way catalytic converter shell according to claim 2, characterized in that: The upper end of the arc-shaped fixing block (32) is provided with a chamfer to facilitate the insertion of the catalyst housing.

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