Solvent mixing apparatus for electrochemical synthesis of MOFs

Abstract

This invention provides a solvent mixing device for the electrochemical synthesis of MOFs, including a solvent mixing shell, a support structure disposed on the outside of the solvent mixing shell, and a rotating structure disposed on the support structure. A rotating block and a sealing gasket are rotated by a rotating connecting rod to seal the feed pipes one and two. A threaded rod is threaded into a threaded groove, restricting the rotation of the rotating block and facilitating a better seal between the feed pipes one and two, preventing solution leakage during mixing. A motor one rotates a stirring plate, and a motor two rotates the solvent mixing shell, causing it to rotate and tumble. This tumbling of the solvent mixing shell agitates and mixes the internal solution materials, ensuring a more uniform mixture within the solvent mixing shell.

Description

Technical Field

[0001] This invention relates to the field of electrochemical synthesis technology, and more particularly to a solvent mixing apparatus for the electrochemical synthesis of MOFs. Background Technology

[0002] Electrochemical synthesis of MOFs is a technique that uses an electric field to drive the reaction between metal ions and organic ligands, directly growing metal-organic framework materials on the electrode surface. Through methods such as anodic dissolution or cathodic deposition, it can rapidly prepare structurally controllable MOF thin films at room temperature and pressure, making it particularly suitable for the production of high-performance membrane materials for gas separation, catalysis, and other applications. When preparing solutions for electrochemical synthesis of MOFs, solvent mixing devices are usually required. However, general solvent mixing devices are not efficient enough in mixing solutions, resulting in uneven mixing. Using unevenly mixed solvents will directly affect the synthesis quality of MOFs. Therefore, how to ensure that the solution is mixed evenly in the solvent mixing shell is an important problem that needs to be solved in the design of solvent mixing devices for electrochemical synthesis of MOFs. Summary of the Invention

[0003] This invention provides a solvent mixing device for the electrochemical synthesis of MOFs to address the problem of insufficient uniformity in solution mixing in solvent mixing devices. The present invention solves the above-mentioned technical problems through the following technical solutions: This invention provides a solvent mixing apparatus for the electrochemical synthesis of MOFs, comprising a solvent mixing shell, and further comprising: A support structure is disposed on the outside of the solvent mixing shell; A rotating structure is provided on a supporting structure, which assists the solvent mixing shell in rotating and mixing. A feed passage structure is provided on both sides of the solvent mixing shell, and the feed passage structure assists the solvent mixing shell in feeding and discharging. A stirring structure is disposed inside the solvent mixing shell. Preferably, the support structure includes a support base, a first support plate, support rods, fixing plates, a first shielding arc plate, and a second shielding arc plate. Two first support plates and four support rods are fixedly connected to the top side wall of the support base. The four support rods are located on both sides of the two first support plates, and the tops of the four support rods are fixedly connected to the side walls of the two first support plates. Four fixing plates are fixedly connected to the side walls on both sides of the two first support plates. The two ends of the first shielding arc plate are fixedly connected to the top side walls of the two first support plates. Two second shielding arc plates are fixedly connected to the side walls on opposite sides of the first support plate. In this technical solution, shielding arc plate one and shielding arc plate two provide dust protection for the rotating tooth grooves on the rotating ring frame. Preferably, four connecting blocks are fixedly connected to the side walls of the four fixed plates, and ball bearings are rotatably connected at equal intervals on the side walls on both sides of the connecting blocks. In this technical solution, the ball bearings roll along with the rotation of the rotating ring frame, making the rotation of the rotating ring frame smoother. Preferably, two support plates are fixedly connected to the top side wall of the support base, and a protective shell is fixedly connected between the two support plates. The top side wall of the protective shell is fixedly connected to the end side walls of the two shielding arc plates. In this technical solution, the protective housing provides dust protection for the rotating gear. Preferably, the rotating structure includes a rotating ring frame, a rotating tooth groove, a rotating gear, a rotating rod three, a motor two, and fixed rods. The rotating ring frame is rotatably connected to four connecting blocks. The rotating ring frame has rotating tooth grooves on its side walls. The rotating rod three is rotatably connected to the inner side wall of the protective shell. A rotating gear is fixedly connected to the side wall of the rotating rod three. The rotating gear and the rotating tooth groove mesh with each other. The motor two is fixedly connected to the side wall of the support plate two. The rotating end of the motor two is fixedly connected to one end of the rotating rod three. Eight fixed rods are fixedly connected to the inner side walls on both sides of the rotating ring frame. A solvent mixing shell is fixedly connected between the eight fixed rods. In this technical solution, the rotation of motor two drives the rotation of rotating rod three, which in turn drives the rotation of rotating gear. The rotation of rotating gear in the rotating tooth groove drives the rotation of rotating ring frame, which in turn drives the fixed rod to rotate. The fixed rod drives the solvent mixing shell to rotate and flip, and the flipped solvent mixing shell agitates and mixes the solution raw materials inside. Preferably, the sidewall of the rotating ring frame is attached to the inner sidewall of the first and second blocking arc plates, and the inner sidewall of the annular groove on the rotating ring frame is attached to the sidewall of the ball. Preferably, the agitation structure includes a motor, a rotating rod, a stirring plate, a fixed housing, and a battery. The rotating rod is rotatably connected to the inner wall of the solvent mixing housing. Stirring plates are fixedly connected at equal intervals to the side wall of the rotating rod. The motor is fixedly connected to the side wall of one side of the solvent mixing housing. The rotating end of the motor is fixedly connected to one end of the rotating rod. The fixed housing and the battery are fixedly connected to the side wall of the other side of the solvent mixing housing. The fixed housing covers the outside of the battery. The battery and the motor are electrically connected. In this technical solution, the rotation of motor one drives the rotation of rotating rod two, which in turn drives the stirring plate to rotate. The rotating stirring plate stirs and mixes the solution raw materials in the solvent mixing shell. Preferably, the feeding structure includes a feeding shell, a feeding tube one, a threaded groove, and a feeding tube two. The feeding tube two is fixedly connected to the side walls on both sides of the solvent mixing shell. The feeding tube two is located on the upper and lower sides of the solvent mixing shell, respectively. The end of the feeding tube two is fixedly connected to the feeding shell. The feeding tube two is fixedly connected to the side wall on the other side of the feeding shell. Two threaded grooves are formed on the side wall on the other side of the feeding shell. In this technical solution, the solution raw material for synthesizing MOFs is added into the feed pipe one, and the raw material enters the solvent mixing shell through the circular channel and the feed pipe two. Preferably, the material handling structure includes a connecting rod, a handle rod, a threaded rod, a rotating block, a first rotating rod, and a sealing gasket. The first rotating rod is rotatably connected to the inner wall of the material handling housing. The rotating block is fixedly connected to the side wall of the first rotating rod. Two sealing gaskets are fixedly connected to the side walls on both sides of the rotating block. The two sealing gaskets are attached to the inner wall of the material handling housing. One end of the first rotating rod is fixedly connected to the connecting rod. A threaded rod is threadedly connected to the side wall of the connecting rod. The end of the threaded rod is fixedly connected to the handle rod. In this technical solution, rotating the connecting rod causes rotating rod one to rotate, which in turn causes rotating block and sealing gasket to rotate, causing the circular groove on the rotating block to move away from between feed pipe one and feed pipe two. The sealing gaskets on both sides seal and block feed pipe one and feed pipe two, preventing raw materials from flowing out through feed pipe one and feed pipe two during the mixing process. Preferably, the threaded rod and the threaded groove cooperate with each other, and the rotating block and the sealing gasket have circular through grooves on their side walls. The circular through grooves on the rotating block are consistent with the size of the inner rings of the first and second feed tubes. In this technical solution, the threaded rod is threaded into the threaded groove, which fixes the connecting rod and restricts the rotation of the rotating block, preventing the rotating block from rotating and causing the blockage between the first and second feed pipes to be opened. Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention. The positive and progressive effects of this invention are as follows: 1. By rotating the connecting rod, the rotating block and the sealing gasket rotate, causing the circular groove on the rotating block to move away from the space between feed pipe one and feed pipe two. The sealing gasket seals feed pipe one and feed pipe two, preventing the raw material from flowing out through feed pipe one and feed pipe two during the mixing process. The threaded rod is threaded into the threaded groove, which restricts the rotation of the rotating block and prevents the seal between feed pipe one and feed pipe two from being opened due to the rotation of the rotating block. This facilitates better sealing between feed pipe one and feed pipe two, preventing the solution from flowing out of feed pipe one and feed pipe two during the mixing process. 2. The rotation of motor one drives the stirring plate to rotate, which stirs and mixes the solution material in the solvent mixing shell. The rotation of motor two drives the rotating gear to rotate, which in turn drives the rotating ring frame to rotate. The rotating ring frame drives the solvent mixing shell to rotate and flip, which in turn stirs and mixes the solution material inside the solvent mixing shell, making it easier to mix the solution in the solvent mixing shell evenly. Attached Figure Description Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 This is a top view of the internal structure of the present invention. Figure 3 This is a three-dimensional structural diagram of the horizontal support structure of the present invention. Figure 4 This is a three-dimensional structural diagram of the rotating structure of the present invention. Figure 5 This is a three-dimensional structural diagram of the through-feed structure of the present invention. Figure 6 This is a schematic diagram of the internal structure of the material handling structure of the present invention. Figure 7 This is a three-dimensional structural diagram of the stirring structure of the present invention. Explanation of reference numerals in the attached figures 1. Solvent mixing shell; 2. Support structure; 201. Support base; 202. Support plate one; 203. Support rod; 204. Fixing plate; 205. Shielding arc plate one; 206. Shielding arc plate two; 211. Connecting block; 212. Ball bearing; 3. Support plate two; 4. Protective shell; 5. Material passage structure; 501. Material passage shell; 502. Material passage pipe one; 503. Threaded groove; 504. Material passage pipe two; 511. Connecting rod; 512. Handle lever; 513. Threaded rod; 514. Rotating block; 515. Rotating rod one; 516. Sealing gasket; 6. Agitating structure; 601. Motor one; 602. Rotating rod two; 603. Agitating plate; 604. Fixed housing; 605. Battery; 7. Rotating structure; 701. Rotating ring frame; 702. Rotating tooth groove; 703. Rotating gear; 704. Rotating rod three; 705. Motor two; 706. Fixed rod. Detailed Implementation The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein. like Figure 1-7 As shown, the solvent mixing apparatus for the electrochemical synthesis of MOFs includes a solvent mixing housing 1, and further includes: Support structure 2, which is disposed on the outside of solvent mixing shell 1; A rotating structure 7 is disposed on the support structure 2, and the rotating structure 7 assists the solvent mixing shell 1 in rotating mixing. The feed passage structure 5 is disposed on both sides of the solvent mixing shell 1, and the feed passage structure 5 assists the solvent mixing shell 1 in feeding and discharging. A stirring structure 6 is disposed inside the solvent mixing shell 1. The support structure 2 includes a support base 201, a first support plate 202, support rods 203, fixing plates 204, a first shielding arc plate 205, and a second shielding arc plate 206. Two first support plates 202 and four support rods 203 are fixedly connected to the top side wall of the support base 201. The four support rods 203 are located on both sides of the two first support plates 202, and the tops of the four support rods 203 are fixedly connected to the side walls of the two first support plates 202. Four fixing plates 204 are fixedly connected to the side walls on both sides of the two first support plates 202. The two ends of the first shielding arc plate 205 are fixedly connected to the top side walls of the two first support plates 202. Two second shielding arc plates 206 are fixedly connected to the side walls on opposite sides of the first support plates 202. The shielding arc plate 1 205 and the shielding arc plate 206 provide dust protection for the rotating tooth groove 702 on the rotating ring frame 701. Four connecting blocks 211 are fixedly connected to the side walls of the four fixed plates 204, and ball bearings 212 are rotatably connected at equal distances on the side walls on both sides of the connecting blocks 211. The ball bearing 212 rolls as the rotating ring frame 701 rotates, making the rotation of the rotating ring frame 701 smoother. Two support plates 201 are fixedly connected to the top side wall of the support base 201, and a protective shell 4 is fixedly connected between the two support plates 201. The top side wall of the protective shell 4 is fixedly connected to the end side walls of the two shielding arc plates 206. The protective housing 4 provides dust protection for the rotating gear 703. The rotating structure 7 includes a rotating ring frame 701, a rotating tooth groove 702, a rotating gear 703, a rotating rod 704, a motor 705, and fixed rods 706. The rotating ring frame 701 is rotatably connected to four connecting blocks 211. The rotating tooth groove 702 is provided on the side wall of the rotating ring frame 701. The rotating rod 704 is rotatably connected to the inner side wall of the protective shell 4. The rotating gear 703 is fixedly connected to the side wall of the rotating rod 704. The rotating gear 703 and the rotating tooth groove 702 mesh with each other. The motor 705 is fixedly connected to the side wall of the support plate 3. The rotating end of the motor 705 is fixedly connected to one end of the rotating rod 704. Eight fixed rods 706 are fixedly connected to the inner side walls on both sides of the rotating ring frame 701. A solvent mixing shell 1 is fixedly connected between the eight fixed rods 706. The rotation of motor 2 705 drives the rotation rod 3 704 to rotate, which in turn drives the rotation gear 703 to rotate. The rotation gear 703 rotates within the rotation groove 702, which in turn drives the rotation ring frame 701 to rotate. The rotation ring frame 701 drives the fixed rod 706 to rotate, which in turn drives the solvent mixing shell 1 to rotate and flip. The flipped solvent mixing shell 1 agitates and mixes the solution raw materials inside. The sidewall of the rotating ring frame 701 is attached to the inner sidewall of the first shielding arc plate 205 and the second shielding arc plate 206, and the inner sidewall of the annular groove on the rotating ring frame 701 is attached to the sidewall of the ball 212. The stirring structure 6 includes a motor 601, a rotating rod 602, a stirring plate 603, a fixed housing 604, and a battery 605. The rotating rod 602 is rotatably connected to the inner wall of the solvent mixing housing 1. The stirring plates 603 are fixedly connected at equal intervals to the side wall of the rotating rod 602. The motor 601 is fixedly connected to the side wall of one side of the solvent mixing housing 1. The rotating end of the motor 601 is fixedly connected to one end of the rotating rod 602. The fixed housing 604 and the battery 605 are fixedly connected to the side wall of the other side of the solvent mixing housing 1. The fixed housing 604 covers the outside of the battery 605. The battery 605 and the motor 601 are electrically connected. The rotation of motor 601 drives the rotation rod 602 to rotate, which in turn drives the stirring plate 603 to rotate. The rotating stirring plate 603 stirs and mixes the solution material in the solvent mixing shell 1. The feeding structure 5 includes a feeding shell 501, a feeding tube 1 502, a threaded groove 503, and a feeding tube 2 504. The feeding tube 2 504 is fixedly connected to the side walls on both sides of the solvent mixing shell 1. The feeding tube 2 504 is located on the upper and lower sides of the solvent mixing shell, respectively. The end of the feeding tube 2 504 is fixedly connected to the feeding shell 501. The feeding tube 2 504 is fixedly connected to the side wall on the other side of the feeding shell 501. Two threaded grooves 503 are formed on the side wall on the other side of the feeding shell 501. The solution raw material for synthesizing MOFs is added into feed pipe 1 502, and the raw material enters the solvent mixing shell 1 through the circular channel and feed pipe 2 504. The feed passage structure 5 includes a connecting rod 511, a handle rod 512, a threaded rod 513, a rotating block 514, a first rotating rod 515, and a sealing gasket 516. The first rotating rod 515 is rotatably connected to the inner side wall of the feed passage housing 501. The rotating block 514 is fixedly connected to the side wall of the first rotating rod 515. Two sealing gaskets 516 are fixedly connected to the side walls on both sides of the rotating block 514. The two sealing gaskets 516 are attached to the inner side wall of the feed passage housing 501. One end of the first rotating rod 515 is fixedly connected to the connecting rod 511. The threaded rod 513 is threadedly connected to the side wall of the connecting rod 511. The end of the threaded rod 513 is fixedly connected to the handle rod 512. Rotating the connecting rod 511 causes the rotating rod 515 to rotate, which in turn causes the rotating block 514 and the sealing gasket 516 to rotate. This causes the circular groove on the rotating block 514 to move away from the space between the first feed pipe 502 and the second feed pipe 504. The sealing gaskets 516 on both sides seal and block the first feed pipe 502 and the second feed pipe 504, preventing the raw materials from flowing out through the first feed pipe 502 and the second feed pipe 504 during the mixing process. The threaded rod 513 and the threaded groove 503 cooperate with each other. The rotating block 514 and the sealing gasket 516 have circular through grooves on their side walls. The circular through groove on the rotating block 514 is consistent with the size of the inner ring of the first material tube 502 and the second material tube 504. The threaded rod 513 is threaded into the threaded groove 503, which fixes the connecting rod 511, thereby restricting the rotation of the rotating block 514 and preventing the rotating block 514 from rotating and causing the blockage between the first feed pipe 502 and the second feed pipe 504 to be opened. In use, all electrical components described in this application are externally connected to a power supply and a control switch. The raw materials for synthesizing MOFs are added into the feed pipe 502. The raw materials enter the solvent mixing shell 1 through the circular channel and the feed pipe 504. After all the raw materials are added into the solvent mixing shell 1, the connecting rod 511 is rotated. The connecting rod 511 drives the rotating rod 515 to rotate, which in turn drives the rotating block 514 and the sealing gasket 516 to rotate, causing the circular channel on the rotating block 514 to rotate. The sealing gaskets 516 on both sides seal the feed pipes 502 and 504, preventing the raw materials from flowing out through the feed pipes 502 and 504 during the mixing process. The threaded rod 513 is threaded into the threaded groove 503, which fixes the connecting rod 511, thereby restricting the rotation of the rotating block 514 and preventing the rotating block 514 from rotating and causing the seal between the feed pipes 502 and 504 to be opened. During mixing, the first motor 601 rotates, driving the second rotating rod 602 to rotate. The second rotating rod 602 drives the stirring plate 603 to rotate. The rotating stirring plate 603 stirs and mixes the solution material in the solvent mixing shell 1. The second motor 705 rotates, driving the third rotating rod 704 to rotate. The third rotating rod 704 drives the rotating gear 703 to rotate. The rotating gear 703 rotates in the rotating tooth groove 702, driving the rotating ring frame 701 to rotate. The ball bearing 212 rolls with the rotation of the rotating ring frame 701, making the rotation of the rotating ring frame 701 smoother. The rotating ring frame 701 drives the fixed rod 706 to rotate. The fixed rod 706 drives the solvent mixing shell 1 to rotate and flip. The flipped solvent mixing shell 1 agitates and mixes the solution material inside, making the solution in the solvent mixing shell 1 more uniformly mixed. This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A solvent mixing apparatus for the electrochemical synthesis of MOFs, comprising a solvent mixing housing (1), characterized in that, Also includes: Support structure (2), said support structure (2) is disposed on the outside of solvent mixing shell (1); A rotating structure (7) is provided on a support structure (2) to assist the solvent mixing shell (1) in rotating and mixing. A feed structure (5) is provided on both sides of the solvent mixing shell (1), and the feed structure (5) assists the solvent mixing shell (1) in feeding and discharging. A stirring structure (6) is disposed inside the solvent mixing shell (1).

2. The solvent mixing apparatus for the electrochemical synthesis of MOFs as described in claim 1, characterized in that: The support structure (2) includes a support base (201), a support plate one (202), a support rod (203), a fixing plate (204), a shielding arc plate one (205), and a shielding arc plate two (206). Two support plates one (202) and four support rods (203) are fixedly connected to the top side wall of the support base (201). The four support rods (203) are located on both sides of the two support plates one (202). The top of the four support rods (203) is fixedly connected to the side wall of the two support plates one (202). Four fixing plates (204) are fixedly connected to the side walls on both sides of the two support plates one (202). The two ends of the shielding arc plate one (205) are fixedly connected to the top side wall of the two support plates one (202). Two shielding arc plates two (206) are fixedly connected to the side walls on opposite sides of the support plates one (202).

3. The solvent mixing apparatus for electrochemical synthesis of MOFs as described in claim 2, characterized in that: Four connecting blocks (211) are fixedly connected to the side walls of the four fixed plates (204), and ball bearings (212) are rotatably connected at equal distances on the side walls of the connecting blocks (211).

4. The solvent mixing apparatus for electrochemical synthesis of MOFs as described in claim 2, characterized in that: Two support plates (3) are fixedly connected to the top side wall of the support base (201), and a protective shell (4) is fixedly connected between the two support plates (3). The top side wall of the protective shell (4) is fixedly connected to the end side wall of the two shielding arc plates (206).

5. The solvent mixing apparatus for the electrochemical synthesis of MOFs as described in claim 1, characterized in that: The rotating structure (7) includes a rotating ring frame (701), a rotating tooth groove (702), a rotating gear (703), a rotating rod three (704), a motor two (705), and a fixed rod (706). The rotating ring frame (701) is rotatably connected to four connecting blocks (211). The rotating ring frame (701) has a rotating tooth groove (702) on its side wall. The rotating rod three (704) is rotatably connected to the inner side wall of the protective shell (4). A rotating gear (703) is fixedly connected to the side wall. The rotating gear (703) and the rotating tooth groove (702) mesh with each other. The second motor (705) is fixedly connected to the side wall of the second support plate (3). The rotating end of the second motor (705) is fixedly connected to one end of the third rotating rod (704). Eight fixed rods (706) are fixedly connected to the inner side walls on both sides of the rotating ring frame (701). A solvent mixing shell (1) is fixedly connected between the eight fixed rods (706).

6. The solvent mixing apparatus for the electrochemical synthesis of MOFs as described in claim 5, characterized in that: The sidewall of the rotating ring frame (701) is attached to the inner sidewall of the first shielding arc plate (205) and the second shielding arc plate (206), and the inner sidewall of the annular groove on the rotating ring frame (701) is attached to the sidewall of the ball (212).

7. The solvent mixing apparatus for the electrochemical synthesis of MOFs as described in claim 1, characterized in that: The stirring structure (6) includes a motor (601), a rotating rod (602), a stirring plate (603), a fixed housing (604), and a battery (605). The rotating rod (602) is rotatably connected to the inner wall of the solvent mixing housing (1). The stirring plate (603) is fixedly connected at equal intervals on the side wall of the rotating rod (602). The motor (601) is fixedly connected to the side wall of one side of the solvent mixing housing (1). The rotating end of the motor (601) is fixedly connected to one end of the rotating rod (602). The fixed housing (604) and the battery (605) are fixedly connected to the side wall of the other side of the solvent mixing housing (1). The fixed housing (604) covers the outside of the battery (605). The battery (605) and the motor (601) are electrically connected.

8. The solvent mixing apparatus for the electrochemical synthesis of MOFs as described in claim 1, characterized in that: The feed structure (5) includes a feed housing (501), a feed tube one (502), a threaded groove (503), and a feed tube two (504). The feed tube two (504) is fixedly connected to the side walls on both sides of the solvent mixing housing (1). The feed tube two (504) is located on the upper and lower sides of the solvent mixing housing respectively. The end of the feed tube two (504) is fixedly connected to the feed housing (501). The feed tube two (504) is fixedly connected to the side wall on the other side of the feed housing (501). Two threaded grooves (503) are opened on the side wall on the other side of the feed housing (501).

9. The solvent mixing apparatus for the electrochemical synthesis of MOFs as described in claim 8, characterized in that: The feed passage structure (5) includes a connecting rod (511), a handle rod (512), a threaded rod (513), a rotating block (514), a first rotating rod (515), and a sealing gasket (516). The first rotating rod (515) is rotatably connected to the inner wall of the feed passage housing (501). The rotating block (514) is fixedly connected to the side wall of the first rotating rod (515). Two sealing gaskets (516) are fixedly connected to the side walls on both sides of the rotating block (514). The two sealing gaskets (516) are attached to the inner wall of the feed passage housing (501). One end of the first rotating rod (515) is fixedly connected to the connecting rod (511). The threaded rod (513) is threadedly connected to the side wall of the connecting rod (511). The end of the threaded rod (513) is fixedly connected to the handle rod (512).

10. The solvent mixing apparatus for the electrochemical synthesis of MOFs as described in claim 9, characterized in that: The threaded rod (513) and the threaded groove (503) cooperate with each other. The rotating block (514) and the sealing gasket (516) have circular through grooves on their side walls. The circular through groove on the rotating block (514) is consistent with the size of the inner ring of the first material pipe (502) and the second material pipe (504).

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