A waste catalyst magnetic recovery device and a magnetic recovery method

Abstract

The application discloses a kind of waste catalyst magnetic recovery equipment and magnetic recovery method, belong to catalyst recovery technical field, including waste liquid bin, collection bin, support moving mechanism and support frame, support frame is equipped with magnetic adsorption mechanism, magnetic adsorption mechanism includes driving motor, rotating shaft, mounting bracket, side change adsorption auxiliary desorption component and half adsorption magnetic rod component, collection bin inner wall is equipped with no back scratch magnetic rod desorption mechanism and all-around flushing mechanism.Through the above mode, side change adsorption auxiliary desorption component changes the magnetic force adsorption direction of half adsorption magnetic rod component, to effectively reduce the adsorption force of half adsorption magnetic rod component to adherend, by all-around flushing mechanism flushes no back scratch magnetic rod desorption mechanism and the bottom end of half adsorption magnetic rod component, residual adherend is washed to collection bin, so that waste catalyst recovered from waste water flows from the discharge hopper, facilitate the barrel collection of waste catalyst.

Description

Technical Field

[0001] This invention relates to the field of catalyst recovery technology, and specifically to a magnetic recovery device for spent catalysts. Background Technology

[0002] Raney nickel is a very important and widely used catalyst, mainly composed of an alloy framework structure of nickel and aluminum. It has extremely high catalytic activity in hydrogenation reactions. After use, Raney nickel catalysts adsorb a large amount of organic matter on their surface and in their pores, and are prone to oxidation and spontaneous combustion when exposed to air. Therefore, the recycling of waste Raney nickel is not only related to economic benefits, but also to safety and environmental protection. Since nickel is a paramagnetic material, in large-scale recycling operations, magnetic rod adsorption is usually used to separate waste Raney nickel from wastewater.

[0003] Chinese patent application CN119140269A discloses a magnetic rod module and separation device for slurry iron removal. The magnetic rod module includes multiple magnetic rods mounted on a lifting frame; a bracket assembly has multiple insertion points corresponding to the magnetic rods; a locking tongue is provided at the bottom of the lifting frame; and a clamping structure is installed at the top of the bracket assembly to clamp and lock the locking tongue. The clamping structure can be adjusted to release the locking tongue, and the lifting frame can be separated from the bracket assembly via an external structure, making the structure more compact, expanding the magnetic attraction range, and increasing the iron removal capacity. However, this device and the prior art still have the following problems:

[0004] 1. After being adsorbed by the magnetic rod, the nickel-containing waste catalyst will adhere tightly to the outside of the magnetic rod. When the scraper performs scraping operation, the friction between the adsorbed material and the outer wall of the magnetic rod is strong. After repeated operation, the outer surface of the magnetic rod will be rubbed smooth, which is not conducive to the adhesion of the nickel-containing waste catalyst and reduces the recycling efficiency.

[0005] 2. After the scraper moves from top to bottom to remove the adhering material from the outer wall of the magnetic rod, it will move upward to reset. At this time, the scraper will scrape the remaining adhering material on the outer wall of the magnetic rod upward, causing the adhering material to accumulate at the upper end of the magnetic rod. After it hardens, it will easily aggravate the friction between the scraper and the outer surface of the magnetic rod, thereby accelerating the damage to the outer wall of the magnetic rod. Moreover, the more and more adhering material accumulates, the more manual cleaning is required after the equipment is stopped.

[0006] Based on this, the present invention designs a magnetic recovery device and a magnetic recovery method for waste catalysts to solve the above problems. Summary of the Invention

[0007] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a magnetic recovery device and a magnetic recovery method for waste catalysts.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A magnetic recovery device for waste catalysts includes a waste liquid tank, a collection tank, a supporting and moving mechanism, and a support frame. The supporting and moving mechanism is mounted on the upper side of the waste liquid tank and the collection tank, and the support frame is fixedly installed on the moving end of the supporting and moving mechanism.

[0010] The bottom and top of the waste liquid tank are respectively fixedly installed with a first channel and a second channel, and the bottom of the collection tank is fixedly installed with a discharge hopper.

[0011] A magnetic adsorption mechanism is installed on the support frame. The magnetic adsorption mechanism includes a drive motor, a rotating shaft, a mounting frame, a side-changing adsorption-assisted desorption component, and a semi-adsorbed magnetic rod assembly. The drive motor is fixedly installed on the support frame, and the output end of the drive motor is fixedly installed with the rotating shaft. The lower end of the rotating shaft is fixedly connected to the mounting frame. The mounting frame is equipped with a number of semi-adsorbed magnetic rod assemblies arranged in a matrix. The support frame is also equipped with a side-changing adsorption-assisted desorption component, which is used to change the adsorption position of the semi-adsorbed magnetic rod assembly to reduce the adsorption force of the semi-adsorbed magnetic rod assembly on the outer wall of the material.

[0012] The inner wall of the collection chamber is equipped with a non-returning magnetic rod desorption mechanism for scraping off the deposits on the semi-adsorbent magnetic rod assembly, and the inner wall of the discharge hopper is equipped with an all-around flushing mechanism for rinsing off the deposits from the semi-adsorbent magnetic rod assembly.

[0013] Furthermore, the semi-adsorbent magnetic rod assembly includes a magnetic rod shell, a magnetic rod core, and a baffle side plate. The upper end of the magnetic rod shell is fixedly connected to the mounting frame, and the magnetic rod core is slidably connected to the inner wall of the magnetic rod shell. The cross-section of the magnetic rod core is semi-circular. Multiple baffle side plates are fixedly installed in a circumferential array on the outer wall of the magnetic rod shell.

[0014] Furthermore, the side-changing adsorption-assisted desorption component includes a vertical movement control component, a connector, spiral grooves, and sliding pins. The vertical movement control component is mounted on a mounting frame. Several spiral grooves are formed on the inner wall of the magnetic rod housing along the length of the magnetic rod housing. Multiple sliding pins corresponding to and slidably connected to the spiral grooves are fixedly installed on the side wall of the magnetic rod core. The upper end of the magnetic rod core is fixedly connected to the connector, and the connector is rotatably connected to the drive end of the vertical movement control component.

[0015] Furthermore, the vertical movement control assembly includes a second push cylinder, a connecting ring, and a vertical movement plate. The vertical movement plate is connected to the rotating shaft via a key, enabling the vertical movement plate to slide along the rotating shaft and rotate synchronously with it. The connecting ring is rotatably mounted on the upper end of the vertical movement plate, and the second push cylinder is fixedly mounted on the support frame. The output end of the second push cylinder is fixedly connected to the connecting ring. The connector is rotatably connected to the lower end of the vertical movement plate via a bearing.

[0016] Furthermore, the non-returning magnetic rod desorption mechanism includes a second lifting assembly and an opening and closing desorption assembly. The second lifting assembly is installed on the inner wall of the collection chamber, and the opening and closing desorption assembly is installed between the moving ends of the two sets of second lifting assemblies.

[0017] Furthermore, the opening and closing desorption assembly includes an opening and closing drive assembly and an opening and closing scraping assembly. The opening and closing drive assembly is installed at the moving end of the second lifting assembly, and the opening and closing scraping assembly is installed at the output end of the opening and closing drive assembly.

[0018] Furthermore, the opening and closing drive assembly includes a moving rack, a reverse gear, and a third push cylinder. The two moving racks are slidably mounted on the moving end of the second lifting assembly via a limiting assembly. The reverse gear is located between the two moving racks and is rotatably connected to the moving end of the second lifting assembly, and is meshed with the two moving racks. The third push cylinder is fixedly mounted on the moving end of the second lifting assembly, and its output end is fixedly connected to either moving rack.

[0019] Furthermore, the opening and closing scraping assembly is provided in multiple sets, each corresponding to a row and column of the semi-adsorbent magnetic rod assembly; the opening and closing scraping assembly includes a first connecting frame, a first desorption block, a second connecting frame, and a second desorption block. The first connecting frame and the second connecting frame are respectively fixedly connected to two movable racks. Multiple first desorption blocks are fixedly installed on the first connecting frame along the length direction of the first connecting frame, and multiple second desorption blocks corresponding to the first desorption blocks are fixedly installed on the second connecting frame. The first desorption blocks and the second desorption blocks are provided with matching semi-circular grooves.

[0020] Furthermore, the all-around flushing mechanism includes a second translation component, a linkage drive component, a reciprocating swing component, and a water spray pipe. The two second translation components are respectively fixedly installed on the left and right inner walls of the hopper, and a fixed pipe is fixedly installed between the moving ends of the two second translation components. The lower end of the water spray pipe is rotatably connected to the fixed pipe, and multiple water spray pipes are arranged along the length of the fixed pipe. A linkage drive component is installed between the end of the fixed pipe and the hopper, and a reciprocating swing component is also installed on the fixed pipe. The linkage drive component is drivenly connected to the reciprocating swing component, and the reciprocating swing component is connected to the water spray pipe.

[0021] Furthermore, the reciprocating oscillating assembly includes a pull plate, a connecting plate, and a rotating disk. The rotating disk is rotatably connected to the fixed pipe, the pull plate is hinged to the middle of all the water spray pipes, and the two ends of the connecting plate are respectively hinged to the eccentric part of the rotating disk and the end of the pull plate.

[0022] To better achieve the objectives of this invention, this invention also provides a magnetic recovery method for a waste catalyst magnetic recovery device, comprising the following steps:

[0023] Step 1: The waste liquid flows into the waste liquid tank through the first channel and flows from bottom to top within the waste liquid tank;

[0024] Step 2: Control the semi-adsorbent magnetic rod assembly to enter the waste liquid chamber through the support and moving mechanism. At this time, the mounting frame and all semi-adsorbent magnetic rod assemblies continue to rotate to attract the waste catalyst, and the waste catalyst is concentrated and adsorbed on the outer wall of the magnetic rod shell near the magnetic rod core.

[0025] Step 3: After the semi-adsorbent magnetic rod assembly has been working in the waste liquid tank for ten minutes, the support frame is moved to the collection tank by the support moving mechanism;

[0026] Step 4: Activate the side-switching adsorption-assisted desorption component to change the magnetic adsorption direction of the semi-adsorbed magnetic rod component;

[0027] Step 5: Control the opening and closing scraping component to fit against the outer wall of the semi-adsorbent magnetic rod component through the opening and closing drive component. Then, use the second lifting component to make the opening and closing scraping component move vertically down along the semi-adsorbent magnetic rod component, so that the waste catalyst on the outside of the semi-adsorbent magnetic rod component is scraped into the hopper until the opening and closing scraping component moves to the bottom of the semi-adsorbent magnetic rod component.

[0028] Step Six: The second translation component drives the water spray pipe to move along the length of the hopper. During the movement, the linkage drive component provides power to the reciprocating swing component, so that all water spray pipes swing back and forth synchronously, flushing the residual adhering material on the bottom of the semi-adsorbent magnetic rod component and the opening and closing scraping component into the hopper, thus completing the automatic recycling of the waste catalyst.

[0029] Compared with the prior art, the beneficial effects of this invention are as follows: waste liquid flows into the waste liquid tank from the first channel, nickel-containing waste catalyst is adsorbed by the semi-adsorbent magnetic rod assembly, and the separated wastewater flows out from the second channel; the waste liquid flows from bottom to top in the waste liquid tank to achieve a laminar flow effect, which effectively reduces the flow rate of the wastewater, which is conducive to the adsorption of nickel-containing catalyst by the semi-adsorbent magnetic rod assembly. In addition, the drive motor drives the mounting frame to rotate through the rotating shaft, thereby making all the semi-adsorbent magnetic rod assemblies rotate in the waste liquid tank, effectively increasing the uniformity of catalyst adsorption by the semi-adsorbent magnetic rod assembly.

[0030] After the semi-adsorbent magnetic rod assembly has been working in the waste liquid tank for a set time, the support frame is moved to the collection tank by the support moving mechanism. At this time, the side-switching adsorption-assisted desorption component is activated to change the magnetic adsorption direction of the semi-adsorbent magnetic rod assembly, thereby effectively reducing the adsorption force of the semi-adsorbent magnetic rod assembly on the attached material. Then, the non-returning magnetic rod desorption mechanism is controlled to move from top to bottom along the semi-adsorbent magnetic rod assembly after it comes into contact with the semi-adsorbent magnetic rod assembly, scraping the attached material on the surface of the semi-adsorbent magnetic rod assembly downwards. When the non-returning magnetic rod desorption mechanism moves to the bottom of the semi-adsorbent magnetic rod assembly, the non-returning magnetic rod desorption mechanism and the bottom of the semi-adsorbent magnetic rod assembly are flushed by the all-round flushing mechanism, and the residual attached material is flushed into the collection tank. This allows the waste catalyst recovered from the wastewater to flow out from the hopper, and the waste catalyst is always wetted, reducing the oxidation rate of catalysts such as Raney nickel, and facilitating the collection of waste catalyst in drums. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0032] Figure 1 This is a front view of a waste catalyst magnetic recovery device according to the present invention;

[0033] Figure 2 This invention relates to a three-dimensional magnetic recovery device for waste catalysts. Figure 1 ;

[0034] Figure 3 This invention relates to a three-dimensional magnetic recovery device for waste catalysts. Figure 2 ;

[0035] Figure 4 This invention relates to a three-dimensional magnetic recovery device for waste catalysts. Figure 3 ;

[0036] Figure 5 The three-dimensional magnetic adsorption mechanism of the present invention Figure 1 ;

[0037] Figure 6 The three-dimensional magnetic adsorption mechanism of the present invention Figure 2 ;

[0038] Figure 7 This invention provides a three-dimensional view of the omnidirectional flushing mechanism and the non-returning magnetic rod desorption mechanism. Figure 1 ;

[0039] Figure 8This invention provides a three-dimensional view of the omnidirectional flushing mechanism and the non-returning magnetic rod desorption mechanism. Figure 2 ;

[0040] Figure 9 This invention provides a three-dimensional view of the omnidirectional flushing mechanism and the non-returning magnetic rod desorption mechanism. Figure 3 ;

[0041] Figure 10 This invention provides a three-dimensional view of the omnidirectional flushing mechanism and the non-returning magnetic rod desorption mechanism. Figure 4 ;

[0042] Figure 11 The three-dimensional magnetic adsorption mechanism of the present invention Figure 3 .

[0043] The labels in the diagram represent:

[0044] 10. Waste liquid tank; 11. First channel; 12. Second channel; 13. Collection tank; 14. Discharge hopper; 2. Support and moving mechanism; 21. First translation component; 211. Rail; 212. Translation frame; 213. Pulley; 22. First lifting component; 221. First push cylinder; 222. Lifting guide rail; 223. Synchronous shaft; 224. Synchronous gear; 225. Synchronous rack; 3. Support frame; 4. Magnetic adsorption mechanism; 41. Drive motor; 42. Rotary shaft; 43. Mounting frame; 44. Side-changing adsorption auxiliary desorption component; 441. Second push cylinder; 442. Connecting ring; 443. Vertical moving plate; 444. Connector; 445. Spiral groove; 4 46. ​​Sliding pin; 45. Semi-adsorbent magnetic rod assembly; 451. Magnetic rod housing; 452. Magnetic rod core; 453. Material-blocking side plate; 5. All-around flushing mechanism; 51. Second translation assembly; 52. Linkage roller; 53. Linkage slide rail; 54. Reversing transmission assembly; 55. Rotating disk; 56. Water spray pipe; 57. Pull plate; 58. Connecting plate; 59. Fixed pipe; 6. Non-reverse scraping magnetic rod desorption mechanism; 61. Second lifting assembly; 62. Opening and closing desorption assembly; 621. Moving rack; 622. Reverse gear; 623. Third push cylinder; 624. First connecting frame; 625. First desorption block; 626. Second connecting frame; 627. Second desorption block. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0046] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0047] In some embodiments, please refer to the accompanying drawings. Figures 1-11 A magnetic recovery device for waste catalysts includes a waste liquid tank 10, a collection tank 13, a supporting and moving mechanism 2 and a support frame 3. The supporting and moving mechanism 2 is mounted on the upper side of the waste liquid tank 10 and the collection tank 13, and the supporting frame 3 is fixedly installed on the moving end of the supporting and moving mechanism 2.

[0048] The bottom and top of the waste liquid tank 10 are respectively fixedly installed with a first channel 11 and a second channel 12, and the bottom of the collection tank 13 is fixedly installed with a discharge hopper 14.

[0049] A magnetic adsorption mechanism 4 is installed on the support frame 3. The magnetic adsorption mechanism 4 includes a drive motor 41, a rotating shaft 42, a mounting frame 43, a side-changing adsorption-assisted desorption component 44, and a semi-adsorbed magnetic rod assembly 45. The drive motor 41 is fixedly installed on the support frame 3, and the output end of the drive motor 41 is fixedly installed with the rotating shaft 42. The lower end of the rotating shaft 42 is fixedly connected to the mounting frame 43. The mounting frame 43 is equipped with a number of semi-adsorbed magnetic rod assemblies 45 arranged in a matrix. The support frame 3 is also equipped with a side-changing adsorption-assisted desorption component 44, which is used to change the adsorption position of the semi-adsorbed magnetic rod assembly 45 to reduce the adsorption force of the semi-adsorbed magnetic rod assembly 45 on the outer wall of the material.

[0050] The inner wall of the collection chamber 13 is equipped with a non-returning magnetic rod desorption mechanism 6 for scraping off the attachments on the semi-adsorbent magnetic rod assembly 45, and the inner wall of the discharge hopper 14 is equipped with an all-round flushing mechanism 5 for rinsing off the attachments from the semi-adsorbent magnetic rod assembly 45.

[0051] In this invention, waste liquid flows into waste liquid tank 10 from the first channel 11, and nickel-containing waste catalyst is adsorbed by semi-adsorbent magnetic rod assembly 45. The separated wastewater flows out from the second channel 12. The waste liquid flows from bottom to top in the waste liquid tank 10 to achieve a laminar flow effect, which effectively reduces the flow rate of the wastewater and facilitates the adsorption of nickel-containing catalyst by the semi-adsorbent magnetic rod assembly 45. In addition, the drive motor 41 drives the mounting frame 43 to rotate through the rotating shaft 42, thereby causing all the semi-adsorbent magnetic rod assemblies 45 to rotate in the waste liquid tank 10, which effectively increases the uniformity of catalyst adsorption by the semi-adsorbent magnetic rod assembly 45.

[0052] After the semi-adsorbent magnetic rod assembly 45 has been working in the waste liquid tank 10 for a set time, the support frame 3 is moved to the collection tank 13 by the support moving mechanism 2. At this time, the side-changing adsorption auxiliary desorption assembly 44 is activated to change the magnetic adsorption direction of the semi-adsorbent magnetic rod assembly 45, thereby effectively reducing the adsorption force of the semi-adsorbent magnetic rod assembly 45 on the attached material. Then, the non-returning magnetic rod desorption mechanism 6 is controlled to move from top to bottom along the semi-adsorbent magnetic rod assembly 45 after it comes into contact with the semi-adsorbent magnetic rod assembly 45, scraping the attached material on the surface of the semi-adsorbent magnetic rod assembly 45 downwards. When the non-returning magnetic rod desorption mechanism 6 moves to the bottom of the semi-adsorbent magnetic rod assembly 45, the non-returning magnetic rod desorption mechanism 6 and the bottom of the semi-adsorbent magnetic rod assembly 45 are washed by the all-round flushing mechanism 5, and the remaining attached material is flushed into the collection tank 13, so that the waste catalyst recovered from the wastewater flows out from the feed hopper 14, and the waste catalyst is always wetted, which reduces the oxidation rate of catalysts such as Raney nickel and facilitates the collection of waste catalyst in drums.

[0053] Please see Figure 5 and Figure 6 The semi-adsorbent magnetic rod assembly 45 includes a magnetic rod housing 451, a magnetic rod core 452, and a baffle side plate 453. The upper end of the magnetic rod housing 451 is fixedly connected to the mounting bracket 43. The magnetic rod core 452 is slidably connected to the inner wall of the magnetic rod housing 451. The cross-section of the magnetic rod core 452 is semi-circular. Multiple baffle side plates 453 are fixedly installed in a circumferential array on the outer wall of the magnetic rod housing 451.

[0054] The adsorption-assisted desorption component 44 includes a vertical movement control component, a connector 444, spiral grooves 445, and sliding pins 446. The vertical movement control component is mounted on the mounting bracket 43. The inner wall of the magnetic rod housing 451 has several spiral grooves 445 along the length of the magnetic rod housing 451. The side wall of the magnetic rod core 452 is fixedly mounted with several sliding pins 446 that correspond one-to-one with the spiral grooves 445 and are slidably connected. The upper end of the magnetic rod core 452 is fixedly connected to the connector 444, and the connector 444 is rotatably connected to the drive end of the vertical movement control component.

[0055] The vertical movement control assembly includes a second push cylinder 441, a connecting ring 442, and a vertical movement plate 443. The vertical movement plate 443 is connected to the rotating shaft 42 via a key, allowing the vertical movement plate 443 to slide along the rotating shaft 42 and rotate synchronously with the rotating shaft 42. The connecting ring 442 is rotatably mounted on the upper end of the vertical movement plate 443. The second push cylinder 441 is fixedly mounted on the support frame 3, and the output end of the second push cylinder 441 is fixedly connected to the connecting ring 442. The connector 444 is rotatably connected to the lower end of the vertical movement plate 443 via a bearing.

[0056] In this invention, when the semi-adsorbent magnetic rod assembly 45 is located in the waste liquid tank 10, under the magnetic force of the magnetic rod core 452, the waste catalyst is concentrated and adsorbed on the outer wall of the magnetic rod shell 451 near the magnetic rod core 452. The drive motor 41 drives the mounting frame 43 to rotate through the rotating shaft 42, so that all the semi-adsorbent magnetic rod assemblies 45 also rotate, continuously and uniformly adsorbing the waste catalyst in the wastewater.

[0057] When the supporting moving mechanism 2 moves the semi-adsorbed magnetic rod assembly 45 into the collection chamber 13 to perform desorption of the waste catalyst, the second push cylinder 441 drives the vertical moving plate 443 to move vertically upward through the connecting ring 442, and then drives all the magnetic rod cores 452 to move vertically upward through the connecting head 444. During the upward movement, the magnetic rod cores 452 are controlled to rotate 180 degrees in the magnetic rod shell 451 through the cooperation of the spiral groove 445 and the sliding pin 446, thereby effectively reducing the adsorption force of the magnetic rod cores 452 on the waste catalyst, and preventing the attached material from moving with the rotation of the magnetic rod cores 452 through the baffle side plate 453.

[0058] Please see Figure 7 and Figure 8 The non-returning magnetic rod desorption mechanism 6 includes a second lifting component 61 and an opening and closing desorption component 62. The second lifting component 61 is installed on the inner wall of the collection chamber 13. Two sets of the second lifting component 61 are provided. The second lifting component 61 can be a servo linear module. The opening and closing desorption component 62 is installed between the moving ends of the two sets of second lifting components 61.

[0059] The opening and closing type desorption component 62 includes an opening and closing drive component and an opening and closing scraping component. The opening and closing drive component is installed at the moving end of the second lifting component 61, and the opening and closing scraping component is installed at the output end of the opening and closing drive component.

[0060] The opening and closing drive assembly includes a movable rack 621, a reverse gear 622, and a third push cylinder 623. The two movable racks 621 are slidably mounted on the moving end of the second lifting assembly 61 via a limiting assembly, which can adopt a dovetail groove and dovetail block limiting structure. The reverse gear 622 is located between the two movable racks 621, and is rotatably connected to the moving end of the second lifting assembly 61, and meshes with the two movable racks 621. The third push cylinder 623 is fixedly mounted on the moving end of the second lifting assembly 61, and its output end is fixedly connected to either movable rack 621.

[0061] The opening and closing scraping assembly is provided in multiple sets and corresponds one-to-one with the rows and columns of the semi-adsorbent magnetic rod assembly 45. The opening and closing scraping assembly includes a first connecting frame 624, a first desorption block 625, a second connecting frame 626, and a second desorption block 627. The first connecting frame 624 and the second connecting frame 626 are respectively fixedly connected to two moving racks 621. Multiple first desorption blocks 625 are fixedly installed on the first connecting frame 624 along the length direction of the first connecting frame 624. Multiple second desorption blocks 627 corresponding one-to-one with the first desorption blocks 625 are fixedly installed on the second connecting frame 626. The first desorption blocks 625 and the second desorption blocks 627 are provided with matching semi-circular grooves.

[0062] Please see Figure 9 and Figure 10 The all-around flushing mechanism 5 includes a second translation component 51, a linkage drive component, a reciprocating swing component, and a water spray pipe 56. The two second translation components 51 are respectively fixedly installed on the left and right inner walls of the hopper 14, and a fixed pipe 59 is fixedly installed between the moving ends of the two second translation components 51. The lower end of the water spray pipe 56 is rotatably connected to the fixed pipe 59, and multiple water spray pipes 56 are arranged along the length of the fixed pipe 59. A linkage drive component is installed between the end of the fixed pipe 59 and the hopper 14. A reciprocating swing component is also installed on the fixed pipe 59. The linkage drive component is drivenly connected to the reciprocating swing component, and the reciprocating swing component is connected to the water spray pipe 56. The linkage drive component is used to provide power to the reciprocating swing component synchronously when the second translation component 51 drives the fixed pipe 59 to translate. A water pipe connected to a water pump (not shown in the figure) is fixedly installed inside the fixed pipe 59. The water pipe is used to supply water to all the water spray pipes 56.

[0063] The reciprocating oscillating assembly includes a pull plate 57, a connecting plate 58, and a rotating disk 55. The rotating disk 55 is rotatably connected to the fixed pipe 59. The pull plate 57 is hinged to the middle of all the water spray pipes 56. The two ends of the connecting plate 58 are respectively hinged to the eccentric part of the rotating disk 55 and the end of the pull plate 57.

[0064] The linkage drive assembly includes a linkage roller 52, a linkage slide rail 53, and a reversing transmission assembly 54. The linkage roller 52 is rotatably connected to the fixed pipe 59, and the linkage slide rail 53 is fixedly connected to the side wall of the hopper 14. The linkage roller 52 and the linkage slide rail 53 are also rollably connected. The linkage roller 52 and the rotating disk 55 are connected by a reversing transmission assembly 54. The reversing transmission assembly 54 can adopt a bevel gear transmission structure.

[0065] A scraper is also fixedly installed at the lower end of the fixed pipe 59. The scraper is used to clean the inner wall of the hopper 14.

[0066] In this invention, after the supporting moving mechanism 2 moves the semi-adsorbent magnetic rod assembly 45 into the collection bin 13, the third push cylinder 623 is activated to move the moving rack 621. With the cooperation of the reverse gear 622, the two moving racks 621 move synchronously in opposite directions, causing the first connecting frame 624 and the second connecting frame 626 of the opening and closing scraping assembly to move closer together. This causes the first desorption block 625 and the second desorption block 627 to engage with and adhere to the magnetic rod shell 451 of the semi-adsorbent magnetic rod assembly 45. Subsequently, the second lifting assembly 61 moves the first desorption block 625 and the second desorption block 627 vertically downward, causing the waste catalyst on the outside of the magnetic rod shell 451 to be scraped into the discharge hopper 14 until the first desorption block 625 and the second desorption block 627 move to the lowest point of the magnetic rod shell 451. Then, the second translation assembly 51 moves the fixed pipe 59, causing the water spray pipe 56 to spray water onto the magnetic rod shell 451. Water is sprayed from the bottom of the 51 and the lower side of the first desorption block 625 and the second connecting frame 626 to flush the attached material into the hopper 14. During the movement of the fixed pipe 59, the linkage roller 52 rolls on the linkage slide rail 53, and then drives the rotating disk 55 to rotate continuously through the reversing transmission component 54. The rotating disk 55, the pull plate 57 and the connecting plate 58 cooperate to make the water spray pipe 56 swing back and forth to achieve a thorough flushing effect. After flushing, the first connecting frame 624 and the second connecting frame 626 are opened and reset by the third push cylinder 623, so that the first desorption block 625 and the second desorption block 627 release the magnetic rod shell 451. Then, the support moving mechanism 2 drives the support frame 3 to reset, so as to avoid scraping the residual catalyst on the magnetic rod shell 451 back to the upper end of the magnetic rod shell 451. The flushing water flow can also ensure that the Raney nickel is always kept moist, increasing the safety of recycling.

[0067] The supporting moving mechanism 2, the support frame 3, and the magnetic adsorption mechanism 4 can be provided in two sets, so as to alternately perform catalyst recovery operations in wastewater, thereby realizing continuous collection and recovery of catalyst in wastewater.

[0068] The supporting moving mechanism 2 includes a first translation component 21 and a first lifting component 22. The first translation component 21 is mounted on the upper side of the waste liquid tank 10 and the collection tank 13. The moving end of the first translation component 21 is fixedly connected to the first lifting component 22, and the moving end of the first lifting component 22 is fixedly connected to the support frame 3.

[0069] The first translation component 21 includes a track 211, a translation frame 212, and a pulley 213. The track 211 is mounted on the upper side of the waste liquid tank 10 and the collection tank 13. The translation frame 212 is located on the upper side of the track 211. The lower end of the translation frame 212 is rotatably mounted with a pulley 213 that is rolled and connected to the track 211. A drive device (not shown in the figure) is also fixedly mounted on the translation frame 212. The drive device is used to control the rotation of the pulley 213.

[0070] The first lifting assembly 22 includes a first push cylinder 221, a lifting guide rail 222, a synchronous shaft 223, a synchronous gear 224, and a synchronous rack 225. The first push cylinder 221 is fixedly installed on the top of the translation frame 212, and the lifting guide rail 222 is fixedly installed on the side of the translation frame 212. The support frame 3 is slidably connected to the lifting guide rail 222 via a slider. The synchronous shaft 223 is rotatably installed on the support frame 3, and two synchronous racks 225 are fixedly installed at both ends of the translation frame 212. Synchronous gears 224, which correspond one-to-one with and mesh with the synchronous racks 225, are fixedly installed at both ends of the synchronous shaft 223. The stability of the support frame 3 during lifting is increased by the cooperation of the synchronous gears 224 and the synchronous racks 225.

[0071] In some embodiments, such as Figures 1-11 As shown, in a preferred embodiment of the present invention, a magnetic recovery method for a waste catalyst magnetic recovery device includes the following steps:

[0072] Step 1: Waste liquid flows into waste liquid tank 10 through the first channel 11 and flows from bottom to top within waste liquid tank 10;

[0073] Step 2: Control the semi-adsorbent magnetic rod assembly 45 to enter the waste liquid tank 10 through the support and moving mechanism 2. At this time, the mounting frame 43 and all the semi-adsorbent magnetic rod assemblies 45 continue to rotate to attract the waste catalyst, and the waste catalyst is concentrated and adsorbed on the outer wall of the magnetic rod shell 451 near the magnetic rod core 452.

[0074] Step 3: After the semi-adsorbent magnetic rod assembly 45 has been working in the waste liquid tank 10 for ten minutes, the support frame 3 is moved to the collection tank 13 by the support moving mechanism 2.

[0075] Step 4: Activate the side-switching adsorption-assisted desorption component 44 to change the magnetic adsorption direction of the semi-adsorption magnetic rod component 45;

[0076] Step 5: Control the opening and closing scraping component to fit against the outer wall of the semi-adsorption magnetic rod assembly 45 through the opening and closing drive component. Then, the second lifting component 61 makes the opening and closing scraping component move vertically downward along the semi-adsorption magnetic rod assembly 45, so that the waste catalyst on the outside of the semi-adsorption magnetic rod assembly 45 is scraped into the feeding hopper 14 until the opening and closing scraping component moves to the bottom of the semi-adsorption magnetic rod assembly 45.

[0077] Step Six: The second translation component 51 drives the water spray pipe 56 to move along the length of the hopper 14. During the movement, the linkage drive component provides power to the reciprocating swing component, so that all the water spray pipes 56 swing back and forth synchronously, flushing the residual adhering material on the bottom of the semi-adsorbent magnetic rod component 45 and the opening and closing scraping component into the hopper 14, thus completing the automatic recycling operation of the waste catalyst.

[0078] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waste catalyst magnetic recovery equipment, comprising a waste liquid bin (10), a collection bin (13), a support moving mechanism (2) and a support frame (3), the support moving mechanism (2) is erected on the upper side of the waste liquid bin (10) and the collection bin (13), and the moving end of the support moving mechanism (2) is fixedly installed with the support frame (3), characterized in that: the bottom and the top of the waste liquid bin (10) are fixedly installed with a first channel (11) and a second channel (12) respectively, and the bottom of the collection bin (13) is fixedly installed with a lower hopper (14); a magnetic adsorption mechanism (4) is installed on the support frame (3), the magnetic adsorption mechanism (4) comprises a rotary drive assembly, a mounting frame (43), a side-changing adsorption auxiliary desorption assembly (44) and a semi-adsorption magnetic rod assembly (45), a rotary control assembly is installed on the support frame (3), and the output end of the rotary control assembly is fixedly connected with the mounting frame (43); the semi-adsorption magnetic rod assembly (45) is installed on the mounting frame (43), and a plurality of semi-adsorption magnetic rod assemblies (45) are arranged in a matrix; the side-changing adsorption auxiliary desorption assembly (44) is also installed on the support frame (3), and is used for changing the adsorption position of the semi-adsorption magnetic rod assembly (45) to reduce the adsorption force of the semi-adsorption magnetic rod assembly (45) on the attachments on the outer wall thereof; the semi-adsorption magnetic rod assembly (45) comprises a magnetic rod shell (451), a magnetic rod core (452) and a material blocking side plate (453), the upper end of the magnetic rod shell (451) is fixedly connected with the mounting frame (43), the magnetic rod core (452) is slidably connected with the inner wall of the magnetic rod shell (451), and the cross section of the magnetic rod core (452) is semicircular; a plurality of material blocking side plates (453) are fixedly installed on the outer wall of the magnetic rod shell (451) in a circumferential array; the side-changing adsorption auxiliary desorption assembly (44) comprises a vertical moving control assembly, a connecting head (444), a spiral groove (445) and a sliding pin (446), the vertical moving control assembly is installed on the mounting frame (43), a plurality of spiral grooves (445) are formed in the length direction of the magnetic rod shell (451) on the inner wall of the magnetic rod shell (451), and a plurality of sliding pins (446) are fixedly installed on the side wall of the magnetic rod core (452) in one-to-one correspondence with the spiral grooves (445) and are slidably connected with the spiral grooves (445); the upper end of the magnetic rod core (452) is fixedly connected with the connecting head (444), and the connecting head (444) is rotatably connected with the driving end of the vertical moving control assembly; the vertical moving control assembly comprises a second push cylinder (441), a connecting ring (442) and a vertical moving plate (443), the vertical moving plate (443) is connected with the output end of the rotary drive assembly through a key, so that the vertical moving plate (443) can slide in the vertical direction of the output end of the rotary drive assembly and rotate synchronously with the output end of the rotary drive assembly; the connecting ring (442) is rotatably installed on the upper end of the vertical moving plate (443), the second push cylinder (441) is fixedly installed on the support frame (3), and the output end of the second push cylinder (441) is fixedly connected with the connecting ring (442); and the connecting head (444) is rotatably connected with the lower end of the vertical moving plate (443) through a bearing.

2. The spent catalyst magnetic recovery apparatus according to claim 1, characterized by, The non-back scratch magnetic rod detachment mechanism (6) includes a second lifting assembly (61) and an open-close detachment assembly (62), the second lifting assembly (61) is installed on the inner wall of the collection bin (13), and the open-close detachment assembly (62) is installed between the moving ends of the two second lifting assemblies (61).

3. The spent catalyst magnetic recovery apparatus according to claim 2, wherein The open-close detachment assembly (62) includes an open-close driving assembly and an open-close scraping assembly, the open-close driving assembly is installed on the moving end of the second lifting assembly (61), and the open-close scraping assembly is installed on the output end of the open-close driving assembly.

4. The spent catalyst magnetic recovery apparatus according to claim 3, characterized by The open-close driving assembly includes moving racks (621), reverse gears (622) and third push cylinders (623), the two moving racks (621) are installed on the moving end of the second lifting assembly (61) in a translatable and sliding manner through a limiting assembly, the reverse gears (622) are located between the two moving racks (621), the reverse gears (622) are rotationally connected with the moving end of the second lifting assembly (61), and the reverse gears (622) are meshingly connected with the two moving racks (621); the third push cylinders (623) are fixedly installed on the moving end of the second lifting assembly (61), and the output end of the third push cylinder (623) is fixedly connected with any moving rack (621).

5. The spent catalyst magnetic recovery apparatus of claim 4, wherein, The open-close scraping assembly is provided with multiple groups and corresponds to the semi-adsorbed magnetic rod assembly (45) in rows; the open-close scraping assembly includes first connecting frames (624), first detachment blocks (625), second connecting frames (626) and second detachment blocks (627), the first connecting frames (624) and the second connecting frames (626) are fixedly connected with the two moving racks (621) respectively, a plurality of first detachment blocks (625) are fixedly installed on the first connecting frame (624) along the length direction of the first connecting frame (624), a plurality of second detachment blocks (627) corresponding to the first detachment blocks (625) are fixedly installed on the second connecting frame (626), and semicircular grooves matched with each other are formed in the first detachment blocks (625) and the second detachment blocks (627).

6. The spent catalyst magnetic recovery apparatus of claim 5, wherein, The omnibearing flushing mechanism (5) includes second translation assemblies (51), a linkage driving assembly, a reciprocating swing assembly and water spraying pipes (56), the two second translation assemblies (51) are fixedly installed on the left and right inner walls of the lower hopper (14) respectively, and a fixed pipe (59) is fixedly installed between the moving ends of the two second translation assemblies (51); the lower end of the water spraying pipe (56) is rotationally connected with the fixed pipe (59), a plurality of water spraying pipes (56) are arranged along the length direction of the fixed pipe (59); the linkage driving assembly is installed between the end of the fixed pipe (59) and the lower hopper (14), the reciprocating swing assembly is further installed on the fixed pipe (59), the linkage driving assembly is drivingly connected with the reciprocating swing assembly, and the reciprocating swing assembly is connected with the water spraying pipe (56).

7. A magnetic recovery method using the spent catalyst magnetic recovery apparatus according to claim 6, characterized by, The method comprises the following steps: Step 1: the waste liquid flows into the waste liquid bin (10) from the first channel (11) and flows from bottom to top in the waste liquid bin (10); Step 2: the semi-adsorption magnetic rod assembly (45) is controlled to enter the waste liquid bin (10) by the support moving mechanism (2), at this time, the mounting frame (43) and all semi-adsorption magnetic rod assemblies (45) continuously rotate to attract waste catalysts, and the waste catalysts are adsorbed on the outer wall of the magnetic rod shell (451) close to the magnetic rod core (452) side; Step 3: after the semi-adsorption magnetic rod assembly (45) works in the waste liquid bin (10) for ten minutes, the support frame (3) is moved into the collection bin (13) by the support moving mechanism (2); Step 4: the side-changing adsorption auxiliary desorption assembly (44) is started to change the magnetic adsorption direction of the semi-adsorption magnetic rod assembly (45); Step 5: the opening and closing scraping assembly is controlled to be attached to the outer wall of the semi-adsorption magnetic rod assembly (45) by the opening and closing driving assembly, then the opening and closing scraping assembly is moved downward along the semi-adsorption magnetic rod assembly (45) by the second lifting assembly (61), so that the waste catalysts on the outside of the semi-adsorption magnetic rod assembly (45) are scraped into the lower hopper (14), and the opening and closing scraping assembly moves to the lowermost end of the semi-adsorption magnetic rod assembly (45); Step 6: the second translation assembly (51) drives the water spraying pipe (56) to move along the length direction of the lower hopper (14), and the linkage driving assembly provides power for the reciprocating swing assembly during the movement, so that all the water spraying pipes (56) swing synchronously, the residual attachments on the bottom of the semi-adsorption magnetic rod assembly (45) and the opening and closing scraping assembly are flushed into the lower hopper (14), and the automatic recycling work of the waste catalysts is completed.

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