A material conveying device for methanol to olefins catalyst production

Abstract

The present invention relates to the technical field of methanol to olefins, and discloses a material conveying device for methanol to olefins catalyst production, including a fluidized bed reactor, a mounting plate installed at the bottom of one side of the fluidized bed reactor, a feeding pipe installed at one end of the mounting plate, and a feeding pipe arranged at one end of the feeding pipe; a first sealing mechanism is arranged at one end of the feeding pipe, and the first sealing mechanism includes a sealing plate; a second sealing mechanism is arranged at one end of the feeding pipe located inside the fluidized bed reactor, and the second sealing mechanism includes a blocking block; a cleaning mechanism is arranged on the outside of the feeding pipe, and the cleaning mechanism includes an air cylinder. The present invention arranges a sealing plate and a blocking block between the feeding pipe and the feeding pipe, so that the feeding pipe can be reset in time under the action of the first spring and the second spring when separated, so as to prevent the catalyst powder from being exposed, and the piston is pulled when the feeding pipe is taken out, so as to blow air into the feeding pipe, so as to achieve the effect of cleaning the residual catalyst.

Description

Technical Field

[0001] The invention belongs to the technical field of methanol to olefins, and specifically relates to a material conveying device for methanol to olefins catalyst production. Background Art

[0002] Methanol to olefins is an important new chemical process. It refers to a chemical technology that uses methanol synthesized from coal or natural gas as raw material to produce low-carbon olefins through a fluidized bed reaction similar to a catalytic cracking unit.

[0003] When the reaction is carried out in a fluidized bed reactor, the fluidized bed reactor is filled with a solid powdered catalyst, and methanol is introduced through the bottom to allow it to enter the catalyst powder and form a phenomenon similar to liquid boiling. In this process, the methanol is catalyzed by the catalyst and reacts, and is discharged through the top outlet. During the methanol discharge process, a portion of the catalyst powder will be taken away. At this time, a catalyst needs to be added to the fluidized bed reactor to ensure the smooth progress of the reaction.

[0004] The existing method of adding catalyst is mainly to add the catalyst directly through the filling pipe. This method cannot ensure the isolation between the inside and outside of the reactor during the adding process, resulting in the possibility that the internal catalyst powder may be exposed through the filling pipe. At the same time, after the catalyst is added, some catalyst powder will remain in the pipe, affecting subsequent filling.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The existing method of adding catalyst is mainly to add the catalyst directly through the filling pipe. This method cannot ensure the isolation between the inside and outside of the reactor during the addition process, resulting in the possibility that the catalyst powder inside is exposed through the filling pipe. At the same time, after the catalyst is added, a part of the catalyst powder will remain in the pipe, affecting the subsequent filling. The basic concept of the technical solution adopted by the present invention is:

[0007] A material conveying device for methanol to olefin catalyst production, comprising a fluidized bed reactor, a mounting plate is installed at the bottom of one side of the fluidized bed reactor, a feeding pipe is installed at one end of the mounting plate, a feeding pipe is arranged at one end of the feeding pipe, and one end of the feeding pipe is connected to a powder conveying pump;

[0008] A first sealing mechanism is provided at one end of the material delivery pipe, and the first sealing mechanism includes a sealing plate. Planar grooves are provided on both sides of one end of the material delivery pipe. Two sealing plates are provided and are slidably connected to one side of the two planar grooves respectively. A material delivery port is provided on the planar groove;

[0009] The feeding pipe is located at one end of the fluidized bed reactor and is provided with a second sealing mechanism, the second sealing mechanism comprising a blocking block, the inner wall of one end of the feeding pipe is fixedly mounted with blocking blocks on both sides, the two sides of the blocking block are slidably connected between the two blocking blocks, the cross-sectional shape of the blocking block is adapted to the cross-sectional shape of the sealing plate, and the blocking block and the side of the feeding pipe are provided with a feeding port that is interpenetrating with each other;

[0010] A cleaning mechanism is arranged outside the feeding pipe, and the cleaning mechanism comprises an air cylinder, one end of which is sealedly connected with a conduit, one end of which is fixedly plugged into the side of the feeding pipe, and one end of which is located on one side of the stopper.

[0011] As a preferred embodiment of the present invention, two first plug rods are fixedly installed at one end of each of the sealing plates, and the other ends of the two first plug rods are movably inserted into one end of the feed pipe, and a first spring is movably sleeved on the first plug rod, and the two ends of the first spring are respectively fixedly installed at one end of the sealing plate and one end of the plane groove, and the first spring is always in a compressed state.

[0012] As a preferred embodiment of the present invention, two arc grooves are provided on the side of the feed pipe between the two plane grooves, a connecting plate is slidably connected to the arc groove, and both ends of the connecting plate are fixedly installed between the two sealing plates.

[0013] As a preferred embodiment of the present invention, a fixed plate is installed at one end of the blocking block, and two second plug rods are movably connected at both ends of the fixed plate, one end of the second plug rod is fixedly installed on one side of the mounting plate, and a second spring is movably sleeved on the second plug rod, and both ends of the second spring are respectively fixedly installed on one side of the mounting plate and one side of the fixed plate, and the second spring is always in a stretched state.

[0014] As a preferred embodiment of the present invention, four gas cylinders and their connecting components are provided, and one end of the four gas cylinders is fixedly installed on one side of the mounting plate at equal intervals with the center of the feeding pipe as the center of the circle, and a constant pressure hole is opened at one end of the gas cylinder close to the mounting plate.

[0015] As a preferred embodiment of the present invention, the inner wall of the gas cylinder is movably connected with a piston, a through conical hole is opened in the middle of the piston, a conical plug is provided on the side of the piston close to the mounting plate, the shape of the conical plug is adapted to the conical hole, a plurality of equally spaced pull ropes are installed between the conical plug and the piston, a pull rod is fixedly installed on one end of the conical plug close to the piston, the cross-sectional diameter of the pull rod is smaller than the minimum diameter of the conical hole, the other end of the pull rod movably passes through the gas cylinder and extends to the outside, and a support rod is installed between the two pull rods at the top and between the two pull rods at the bottom.

[0016] As a preferred embodiment of the present invention, two fixing rods are installed at the top and bottom of one end of the feeding tube, and a blocking rod is installed between the two fixing rods, and the position of the blocking rod is adapted to the position of the supporting rod.

[0017] As a preferred embodiment of the present invention, an annular groove is provided on the feed pipe, a support ring is movably sleeved on the annular groove, connecting rods are fixedly installed on both upper and lower ends of the support ring, top blocks are installed on both sides of one end of the connecting rod, the top block is aligned with the support rod, and the connecting rod and the support rod are staggered with each other.

[0018] As a preferred embodiment of the present invention, one end of the connecting rod is rotatably connected to a hook block, a torsion spring is installed at the connection between the hook block and the connecting rod, a first pressure plate is installed on the outer side of one end of the hook block close to the torsion spring, and the first pressure plate is placed at an angle, one end of the first pressure plate is rotatably connected to a second pressure plate, and one end of the second pressure plate is slidably connected to one side of the connecting rod.

[0019] As a preferred embodiment of the present invention, two locking rods are installed on the side of the feed pipe, and rectangular grooves are provided on both sides of the feeding pipe, and the width of the rectangular grooves is adapted to the cross-sectional diameter of the locking rods. Support blocks are installed at the upper and lower ends of the two rectangular grooves, and sliding grooves are provided on the support blocks. The two support blocks are slidably connected with locking blocks through the sliding grooves, and the cross-sectional shape of the locking blocks is circular. Notches are provided on the sides of the locking blocks, and the width of the notch is adapted to the cross-sectional diameter of the locking rods.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention arranges a sealing plate and a blocking block between the material conveying pipe and the feeding pipe so that the first spring and the second spring can timely reset the material when the material is separated, thereby preventing the catalyst powder from being exposed. When the material is taken out through the material conveying pipe, the piston is pulled to blow air into the feeding pipe, thereby achieving the effect of cleaning the residual catalyst.

[0022] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the attached picture:

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the material delivery pipe of the present invention;

[0026] Figure 3 This is a schematic diagram of the first spring structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the support ring of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the hook block of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the second spring of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the stopper of the present invention;

[0031] Figure 8 This is a structural schematic diagram of the support rod of the present invention;

[0032] Fig. 9 It is a schematic diagram of the internal structure of the gas cylinder of the present invention;

[0033] Fig.10 This is a schematic diagram of the structure of the piston of the present invention;

[0034] Fig.11 It is a structural schematic diagram of the locking block of the present invention;.

[0035] In the figure:

[0036] 100, fluidized bed reactor; 101, mounting plate; 102, feed pipe; 103, feed pipe;

[0037] 200, arc groove; 201, plane groove; 202, feeding port; 203, first plug rod; 204, first spring; 205, sealing plate; 206, connecting plate;

[0038] 300, blocking block; 301, fixing plate; 302, second plug rod; 303, second spring; 304, stopper; 305, feed port;

[0039] 400, gas cylinder; 401, catheter; 402, piston; 403, tapered hole; 404, tapered plug; 405, pull rope; 406, pull rod; 407, support rod; 408, constant pressure hole;

[0040] 500, fixing rod; 501, blocking rod; 502, annular groove; 503, supporting ring; 504, connecting rod; 505, hook block; 506, torsion spring; 507, first pressing plate; 508, second pressing plate; 509, top block;

[0041] 600, rectangular groove; 601, support block; 602, slide groove; 603, locking block; 604, notch; 605, locking rod. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0043] Embodiment 1:

[0044] like Figures 1 to 11 As shown, a material conveying device for methanol to olefin catalyst production includes a fluidized bed reactor 100, a mounting plate 101 is installed at the bottom of one side of the fluidized bed reactor 100, a feeding pipe 102 is installed at one end of the mounting plate 101, a feeding pipe 103 is arranged at one end of the feeding pipe 102, and one end of the feeding pipe 103 is connected to a powder conveying pump;

[0045] A first sealing mechanism is provided at one end of the material delivery pipe 103, and the first sealing mechanism includes a sealing plate 205. Planar grooves 201 are provided on both sides of one end of the material delivery pipe 103. Two sealing plates 205 are provided and are slidably connected to one side of the two planar grooves 201, respectively. A material delivery port 202 is provided on the planar groove 201.

[0046] A second sealing mechanism is provided at one end of the feeding pipe 102 located inside the fluidized bed reactor 100. The second sealing mechanism includes a block 300. Blocks 304 are fixedly installed on both sides of the inner wall of one end of the feeding pipe 102. Both sides of the block 300 are slidably connected between the two blocks 304. The cross-sectional shape of the block 304 is adapted to the cross-sectional shape of the sealing plate 205. The block 304 and the side of the feeding pipe 102 are provided with a feed port 305 that is interconnected.

[0047] A cleaning mechanism is provided on the outside of the feeding tube 102 , and the cleaning mechanism includes an air cylinder 400 , one end of which is sealedly connected to a conduit 401 , one end of which is fixedly plugged into the side of the feeding tube 102 , and one end of the conduit 401 is located on the side of the stopper 304 .

[0048] like Figures 1 to 11As shown, in a specific embodiment, two first plug rods 203 are fixedly installed at one end of each sealing plate 205, and the other ends of the two first plug rods 203 are movably plugged into one end of the feed pipe 103. A first spring 204 is movably sleeved on the first plug rod 203. The two ends of the first spring 204 are respectively fixedly installed at one end of the sealing plate 205 and one end of the plane groove 201. The first spring 204 is always in a compressed state. Two arc grooves 200 are provided on the side of the feed pipe 103 between the two plane grooves 201. The arc groove 200 A connecting plate 206 is slidingly connected to the upper part, and both ends of the connecting plate 206 are fixedly installed between the two sealing plates 205. A fixing plate 301 is installed at one end of the blocking block 300. Two second plug rods 302 are movably connected at both ends of the fixing plate 301. One end of the second plug rod 302 is fixedly installed on one side of the mounting plate 101. A second spring 303 is movably sleeved on the second plug rod 302. Both ends of the second spring 303 are fixedly installed on one side of the mounting plate 101 and one side of the fixing plate 301, and the second spring 303 is always in a stretched state. In this arrangement, when solid catalyst powder needs to be added, the feed pipe 103 is inserted into the feeding pipe 102. At this time, the sealing plate 205 at one end of the feed pipe 103 abuts against the block 304, so that the sealing plate 205 and the feed pipe 103 are relatively displaced. At the same time, the feed pipe 103 abuts against the blocking block 300, so that the blocking block 300 and the feeding pipe 102 are relatively displaced. During this process, the feed port 202 and the feed port 305 gradually increase in size. When the sealing plate 205 and the blocking block 300 move to the maximum displacement, the feed port 202 and the feed port 305 are fully opened and aligned with each other. At this time, the locking rod 605 moves to the notch 604 of the locking block 603. The locking block 603 can be rotated to lock the locking rod 605, and the powder conveying pump conveys the solid catalyst powder through the feed pipe 103.

[0049] Embodiment 2:

[0050] like Figures 1 to 11 As shown, in a specific embodiment, four gas cylinders 400 and their connecting components are provided, and one end of the four gas cylinders 400 is fixedly installed on one side of the mounting plate 101 at equal intervals with the center of the feeding tube 102 as the center of the circle, and a constant pressure hole 408 is opened at one end of the gas cylinder 400 close to the mounting plate 101. In this setting, the gas cylinder 400 balances the pressure through the constant pressure hole 408.

[0051] like Figures 1 to 11As shown, further, the inner wall of the gas cylinder 400 is movably connected to the piston 402, and a through conical hole 403 is opened in the middle of the piston 402. A conical plug 404 is provided on the side of the piston 402 close to the mounting plate 101, and the shape of the conical plug 404 is adapted to the conical hole 403. A plurality of equally spaced pull ropes 405 are installed between the conical plug 404 and the piston 402. A pull rod 406 is fixedly installed on one end of the conical plug 404 close to the piston 402, and the cross-sectional diameter of the pull rod 406 is smaller than the minimum diameter of the conical hole 403. The other end of the pull rod 406 movably passes through the gas cylinder 400 and extends to the outside, and a support rod 407 is installed between the two top pull rods 406 and between the two bottom pull rods 406. In this configuration, the support rod 407 drives the pull rod 406 to move while being pushed by the top block 509 , the pull rod 406 drives the conical plug 404 to move, and the conical plug 404 drives the piston 402 to move via the pull rope 405 .

[0052] like Figures 1 to 11 As shown, further, two fixing rods 500 are installed at the top and bottom of one end of the feeding tube 102, and a blocking rod 501 is installed between the two fixing rods 500, and the position of the blocking rod 501 is adapted to the position of the support rod 407. In this configuration, when the support ring 503 slides to the bottom of the annular groove 502, the feeding tube 103 drives the support ring 503 to continue to move, and makes the first pressing plate 507 resist the blocking rod 501, and the blocking rod 501 drives the first pressing plate 507 to rotate under the action of pressure, so that the hook block 505 is tilted.

[0053] Embodiment three:

[0054] like Figures 1 to 11 As shown, in a specific embodiment, an annular groove 502 is provided on the feed pipe 103, a support ring 503 is movably sleeved on the annular groove 502, a connecting rod 504 is fixedly installed at both ends of the upper and lower ends of the support ring 503, a top block 509 is installed on both sides of one end of the connecting rod 504, the top block 509 is aligned with the support rod 407, and the connecting rod 504 and the support rod 407 are staggered. In this setting, the connecting rod 504 and the hook block 505 continue to move, the hook block 505 passes over the support rod 407, and at the same time, the connecting rod 504 drives the top block 509 to move so that it can resist the support rod 407, and at this time the support rod 407 is located between the top block 509 and the hook block 505.

[0055] like Figures 1 to 11As shown, further, one end of the connecting rod 504 is rotatably connected to a hook block 505, a torsion spring 506 is installed at the connection between the hook block 505 and the connecting rod 504, a first pressing plate 507 is installed on the outer side of one end of the hook block 505 close to the torsion spring 506, and the first pressing plate 507 is placed obliquely, one end of the first pressing plate 507 is rotatably connected to a second pressing plate 508, and one end of the second pressing plate 508 is slidably connected to one side of the connecting rod 504. In this configuration, the blocking rod 501 drives the first pressing plate 507 to rotate under the action of pressure, and the torsion of the torsion spring 506 drives the hook block 505 to reset and buckle the support rod 407.

[0056] like Figures 1 to 11 As shown, further, two locking rods 605 are installed on the side of the feeding pipe 103, and rectangular grooves 600 are provided on both sides of the feeding pipe 102. The width of the rectangular grooves 600 is adapted to the cross-sectional diameter of the locking rods 605. Support blocks 601 are installed at both upper and lower ends of the two rectangular grooves 600. The support blocks 601 are provided with slide grooves 602. The two support blocks 601 are slidably connected with locking blocks 603 through the slide grooves 602. The cross-sectional shape of the locking blocks 603 is circular. A notch 604 is provided on the side of the locking blocks 603. The width of the notch 604 is adapted to the cross-sectional diameter of the locking rods 605. In this configuration, the locking rod 605 moves to the notch 604 of the locking block 603, and the locking block 603 can be rotated to lock the locking rod 605.

[0057] The implementation principle of a material conveying device for methanol to olefin catalyst production of the present embodiment is as follows: when solid catalyst powder needs to be added, the feed pipe 103 is inserted into the feeding pipe 102. At this time, the sealing plate 205 at one end of the feed pipe 103 abuts against the block 304, so that the sealing plate 205 and the feed pipe 103 are relatively displaced. At the same time, the feed pipe 103 abuts against the block 300, so that the block 300 and the feeding pipe 102 are relatively displaced. During this process, the feed port 202 and the feed port 305 are gradually enlarged. When the sealing plate 205 and the block 300 move to the maximum displacement, the feed port 202 and the feed port 305 are fully opened and aligned with each other. At this time, the locking rod 605 moves to the notch 604 of the locking block 603. The locking block 603 can be rotated to lock the locking rod 605, and the powder conveying pump conveys the solid catalyst powder through the feed pipe 103;

[0058] During the insertion process of the feed pipe 103, the feed pipe 103 drives the support ring 503 to move, the support ring 503 drives the connecting rod 504 to move, the connecting rod 504 drives the hook block 505 to move, and the hook block 505 drives the first pressure plate 507 and the second pressure plate 508 to move. When the first pressure plate 507 contacts the baffle rod 501, the support ring 503 is resisted and slides in the annular groove 502. When the support ring 503 slides to the bottom of the annular groove 502, the feed pipe 103 drives the support ring 503 to continue to move, and makes the first pressure plate 507 resist the baffle rod 501. The baffle rod 501 drives the first pressure plate 507 to rotate under the action of pressure, so that the hook block 505 is tilted. At this time, the connecting rod 504 and the hook block 505 continue to move, and the hook block 505 passes over the support Rod 407, and at the same time, connecting rod 504 drives top block 509 to move so that it can resist support rod 407. At this time, support rod 407 is located between top block 509 and hook block 505, and continues to move delivery pipe 103. When the first pressure plate 507 and the second pressure plate 508 move to be offset from the blocking rod 501, the torsion force of torsion spring 506 drives hook block 505 to reset and buckle support rod 407. In the process of being pushed by top block 509, support rod 407 drives pull rod 406 to move, pull rod 406 drives conical plug 404 to move, and conical plug 404 drives piston 402 to move through pull rope 405. At this time, air cylinder 400 balances the pressure through constant pressure hole 408. When delivery pipe 103 is fully inserted, piston 402 follows and moves to the maximum distance.

[0059] When the catalyst is added, the delivery pump is turned off, and the locking block 603 is rotated to open the locking rod 605. At this time, the delivery pipe 103 is pulled out. During the movement of the delivery pipe 103, the first spring 204 and the second spring 303 are reset immediately, so that the sealing plate 205 and the blocking block 300 can block the delivery port 202 and the feed port 305 in time. When the end of the delivery pipe 103 moves to the rectangular groove 600, one end of the annular groove 502 contacts one end of the support ring 503 and drives the support ring 503 to move. At this time, the support ring 503 drives the connecting rod 504 and the hook block 505 to move, and the hook block 505 drives the cone through the support rod 407 and the pull rod 406. The conical plug 404 moves, and the conical plug 404 presses against the piston 402, so that the gas in the gas cylinder 400 is discharged through the conduit 401, and the feeding pipe 103 is blown and cleaned. When the piston 402 moves to the bottom of the gas cylinder 400, the second pressure plate 508 presses against the baffle rod 501, and the baffle rod 501 causes the second pressure plate 508 to slide down, thereby driving the first pressure plate 507 to rotate, and the first pressure plate 507 drives the hook block 505 to tilt up, thereby separating from the support rod 407. When the hook block 505 moves to the position where the torsion spring 506 is aligned with the baffle rod 501, the baffle rod 501 drives the hook block 505 to reset, so that the feeding pipe 103 can be completely pulled out.

Claims

1. A material conveying device for methanol to olefin catalyst production, comprising a fluidized bed reactor (100), wherein a mounting plate (101) is installed at the bottom of one side of the fluidized bed reactor (100), characterized in that: A feeding pipe (102) is installed at one end of the mounting plate (101), a delivery pipe (103) is provided at one end of the feeding pipe (102), and one end of the delivery pipe (103) is connected to a powder delivery pump; A first sealing mechanism is provided at one end of the material conveying pipe (103), the first sealing mechanism comprising a sealing plate (205), two sides of one end of the material conveying pipe (103) are provided with planar grooves (201), two sealing plates (205) are provided, and are respectively slidably connected to one side of the two planar grooves (201), and a material conveying port (202) is provided on the planar groove (201); The feeding pipe (102) is provided with a second sealing mechanism at one end inside the fluidized bed reactor (100), the second sealing mechanism comprising a blocking block (300), blocking blocks (304) are fixedly installed on both sides of the inner wall of one end of the feeding pipe (102), the two sides of the blocking block (300) are slidably connected between the two blocking blocks (304), the cross-sectional shape of the blocking block (304) is adapted to the cross-sectional shape of the sealing plate (205), and the side surfaces of the blocking block (304) and the feeding pipe (102) are provided with feeding ports (305) that are interconnected; A cleaning mechanism is provided on the outside of the feeding pipe (102), the cleaning mechanism comprising an air cylinder (400), one end of the air cylinder (400) being sealedly connected to a conduit (401), one end of the conduit (401) being fixedly plugged into a side of the feeding pipe (102), and one end of the conduit (401) being located on one side of the stopper (304).

2. The material conveying device for methanol to olefins catalyst production according to claim 1, characterized in that: Two first plug rods (203) are fixedly mounted on one end of each sealing plate (205), and the other ends of the two first plug rods (203) are movably plugged into one end of the feed pipe (103). A first spring (204) is movably sleeved on the first plug rod (203), and the two ends of the first spring (204) are respectively fixedly mounted on one end of the sealing plate (205) and one end of the plane groove (201), and the first spring (204) is always in a compressed state.

3. A material conveying device for methanol to olefins catalyst production according to claim 2, characterized in that: The conveying pipe (103) has two arc grooves (200) on its side between the two plane grooves (201), and a connecting plate (206) is slidably connected to the arc groove (200), and both ends of the connecting plate (206) are respectively fixedly installed between the two sealing plates (205).

4. The material conveying device for methanol to olefins catalyst production according to claim 3, characterized in that: A fixing plate (301) is installed at one end of the blocking block (300), and two second plug rods (302) are movably connected at both ends of the fixing plate (301), one end of the second plug rod (302) is fixedly installed on one side of the mounting plate (101), and a second spring (303) is movably sleeved on the second plug rod (302), and the two ends of the second spring (303) are respectively fixedly installed on one side of the mounting plate (101) and one side of the fixing plate (301), and the second spring (303) is always in a stretched state.

5. The material conveying device for methanol to olefins catalyst production according to claim 4, characterized in that: Four of the gas cylinders (400) and their connecting components are provided, and one end of the four gas cylinders (400) is fixedly installed on one side of the mounting plate (101) at equal intervals with the center of the feeding pipe (102) as the center of the circle, and a constant pressure hole (408) is opened at one end of the gas cylinder (400) close to the mounting plate (101).

6. The material conveying device for methanol to olefins catalyst production according to claim 5, characterized in that: The inner wall of the gas cylinder (400) is movably connected to a piston (402), and a through conical hole (403) is opened in the middle of the piston (402). A conical plug (404) is arranged on the side of the piston (402) close to the mounting plate (101), and the shape of the conical plug (404) is adapted to the conical hole (403). A plurality of pull ropes (405) distributed at equal intervals are installed between the conical plug (404) and the piston (402). A pull rod (406) is fixedly installed on one end of the conical plug (404) close to the piston (402), and the cross-sectional diameter of the pull rod (406) is smaller than the minimum diameter of the conical hole (403). The other end of the pull rod (406) movably passes through the gas cylinder (400) and extends to the outside. A support rod (407) is installed between the two pull rods (406) at the top and between the two pull rods (406) at the bottom.

7. A material conveying device for methanol to olefins catalyst production according to claim 6, characterized in that: Two fixing rods (500) are installed at the top and bottom of one end of the feeding tube (102), and a blocking rod (501) is installed between the two fixing rods (500). The position of the blocking rod (501) is matched with the position of the supporting rod (407).

8. The material conveying device for methanol to olefins catalyst production according to claim 7, characterized in that: The conveying pipe (103) is provided with an annular groove (502), and a support ring (503) is movably sleeved on the annular groove (502). Connecting rods (504) are fixedly installed at both ends of the support ring (503). Top blocks (509) are installed on both sides of one end of the connecting rod (504). The top blocks (509) are aligned with the support rod (407), and the connecting rod (504) and the support rod (407) are staggered with each other.

9. A material conveying device for methanol to olefins catalyst production according to claim 8, characterized in that: One end of the connecting rod (504) is rotatably connected to a hook block (505), and a torsion spring (506) is installed at the connection between the hook block (505) and the connecting rod (504). A first pressing plate (507) is installed on the outer side of one end of the hook block (505) close to the torsion spring (506), and the first pressing plate (507) is placed at an angle. One end of the first pressing plate (507) is rotatably connected to a second pressing plate (508), and one end of the second pressing plate (508) is slidably connected to one side of the connecting rod (504).

10. The material conveying device for methanol to olefins catalyst production according to claim 1, characterized in that: Two locking rods (605) are installed on the side of the feeding pipe (103), and rectangular grooves (600) are provided on both sides of the feeding pipe (102). The width of the rectangular grooves (600) is adapted to the cross-sectional diameter of the locking rods (605). Support blocks (601) are installed at the upper and lower ends of the two rectangular grooves (600). The support blocks (601) are provided with sliding grooves (602). The two support blocks (601) are slidably connected with locking blocks (603) through the sliding grooves (602). The cross-sectional shape of the locking blocks (603) is circular. A notch (604) is provided on the side of the locking block (603). The width of the notch (604) is adapted to the cross-sectional diameter of the locking rods (605).

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