A methanol synthesis reactor catalyst unloading device and unloading system

Abstract

The present invention relates to the field of catalyst unloading technology, specifically a methanol synthesis reactor catalyst unloading device and unloading system, comprising a vertical box frame, the top of the vertical box frame being connected to the methanol synthesis reactor discharge hole, the bottom of the vertical box frame being installed with a catalyst collecting mechanism; the left side of the middle of the vertical box frame being connected with a first horizontal box frame, a first limiting slide being fixedly connected to the first horizontal box frame, a second sliding plate being slidably connected to the upper limit of the first limiting slide, and a methanol synthesis reactor discharge port plugging plate being fixedly connected to the top of the second sliding plate near the right side. The device can allow the catalyst to automatically and stably fall into the passivation reaction chamber and undergo a passivation reaction, and then after the passivation reaction is completed, the catalyst discharge falling speed can be controlled, so that the catalyst can be collected more efficiently and safely, and the device is fully automatic, saving manpower and being safe to operate, so that the catalyst can be pushed out better.

Description

Technical Field

[0001] The present invention relates to the technical field of catalyst unloading, and in particular to a catalyst unloading device and a unloading system for a methanol synthesis reactor. Background Art

[0002] The catalyst for the two series of methanol synthesis reactors is Clariant's copper-based catalyst for methanol synthesis. Its service life has reached its limit and its reaction activity cannot meet production needs. It needs to be replaced with a new catalyst according to production requirements. Because it is in a reduced state, it is very easy to undergo oxidation reaction and combustion when it meets air. Therefore, the synthesis catalyst needs to be passivated before unloading, and the flow rate during unloading must be controlled, and the waste catalyst must be cooled and dusted in time.

[0003] For example, the prior art Chinese patent application No. 201921159968.3 is a catalyst discharge port structure for a methanol synthesis tower reactor, which does not perform a passivation operation and is very unsafe. A large amount of heat may be generated when the catalyst falls, and it is relatively dangerous for personnel to manually open and close the catalyst to unload it.

[0004] To this end, we designed a methanol synthesis reactor catalyst unloading device and unloading system, which can make the catalyst automatically and stably fall into the passivation reaction chamber and carry out the passivation reaction. After the passivation reaction is completed, the catalyst discharge falling speed can be controlled to make the catalyst more efficient and safe to collect. The device is fully automatic, saving manpower and can be operated safely, and the catalyst can be pushed out better. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art. The present invention proposes a catalyst unloading device and unloading system for a methanol synthesis reactor, which can enable the catalyst to automatically and stably fall into a passivation reaction chamber and undergo a passivation reaction. After the passivation reaction is completed, the catalyst discharge falling speed can be controlled to enable more efficient and safe collection of the catalyst. The device is fully automatic, saves manpower, can be operated safely, and can better push out the catalyst.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a catalyst unloading device for a methanol synthesis reactor, comprising:

[0007] A vertical box frame, the top of which is connected to the discharge hole of the methanol synthesis reactor, and the bottom of which is provided with a catalyst collecting mechanism;

[0008] The left side of the middle of the vertical box frame is connected to the first horizontal box frame, the first horizontal box frame is fixedly connected to the first limiting slide, the upper limit sliding connection of the first limiting slide is connected to the second sliding plate, and the top of the second sliding plate near the right side is fixedly connected to the methanol synthesis reactor discharge port blocking plate;

[0009] The inner bottom of the first horizontal box frame is slidably connected to a horizontal baffle, the bottom of the first limiting slide plate near the right side is fixedly connected to a vertical baffle, the horizontal baffle is sealingly slidably connected to the bottom of the vertical baffle, and the inner wall of the first horizontal box frame is connected to the horizontal baffle via an elastic telescopic member;

[0010] The middle part of the vertical box frame is connected with a water inlet pipe;

[0011] The driving mechanism causes the second sliding plate to perform an L-shaped movement. When the second sliding plate performs a vertical movement, the methanol synthesis reactor discharge port plugging plate is removed from the top of the vertical box frame and the methanol synthesis reactor discharge hole is blocked; when the second sliding plate moves horizontally to the first preset position, the methanol synthesis reactor discharge port plugging plate, the second sliding plate, the first limiting slide plate, the inner wall of the vertical box frame, the vertical baffle, and the horizontal baffle constitute a passivation reaction chamber. Passivation operation is performed by introducing water from the water inlet pipe. After the passivation is completed, the second sliding plate moves horizontally and drives the horizontal baffle to move to release the passivation space so that the catalyst can be safely removed.

[0012] Furthermore, a flange is fixedly mounted on the top exterior of the vertical box frame, and a plurality of mounting holes are provided on the flange for detachable mounting with a discharge port at a discharge hole of the methanol synthesis reactor.

[0013] Furthermore, the catalyst collection mechanism includes a material collection cone, the bottom of the vertical box frame is open, and the material collection cone is fixedly installed at the bottom of the vertical box frame. The bottom of the material collection cone is connected to a discharge pipe installed inside the barrel, and the discharge pipe is placed in the barrel body to allow the catalyst to enter the barrel body safely.

[0014] It also includes a spraying mechanism for spraying the catalyst in the barrel.

[0015] Furthermore, the spray mechanism includes a water pump, a water tank, a support rod, and a spray head. An auxiliary pipe is fixedly installed on the support rod, and a spray head is fixedly installed on the bottom of the auxiliary pipe. The spray head faces the inside of the barrel body. A first pipe and a second pipe are installed on the water pump. The side of the first pipe away from the water pump is placed in the water tank, and the side of the second pipe away from the water pump is connected to the auxiliary pipe.

[0016] Furthermore, the water inlet at the top of the water tank is provided with a water inlet tank cover.

[0017] Furthermore, the driving mechanism includes a first sliding plate, the first limiting sliding plate is slidingly connected to the first sliding plate and the second sliding plate through a first limiting sliding groove thereon, a hinged rod is hinged between the first sliding plate and the second sliding plate, and an elastic member is connected between the first sliding plate and the second sliding plate, so that when the second sliding plate and the methanol synthesis reactor discharge port blocking plate are squeezed against the right inner wall of the vertical box frame, the methanol synthesis reactor discharge port blocking plate and the second sliding plate move upward to block the methanol synthesis reactor discharge hole;

[0018] The left bottom of the second sliding plate is fixedly connected to a push plate, and the left top of the transverse baffle is fixedly connected to an auxiliary extrusion plate. When the second sliding plate is placed on the first limiting slide and moves to the left, it drives the push plate to move leftward to squeeze the auxiliary extrusion plate so that the transverse baffle is gradually opened;

[0019] A moving mechanism for moving the first sliding plate is also included.

[0020] Furthermore, a guide column is fixedly connected between the first limiting slide plate and the inner wall of the vertical box frame.

[0021] Furthermore, the moving mechanism includes a second horizontal box frame, the bottom of the first horizontal box frame is fixedly connected to the second horizontal box frame, a threaded rod is connected between the two side walls of the second horizontal box frame for limited rotation, the outer wall of the threaded rod is threadedly connected to the second limiting slide, the top of the second limiting slide is limitedly slidably connected to the second limiting slide groove provided on the inner bottom of the first horizontal box frame, the top of the second limiting slide is fixedly connected to the first sliding plate, and is used to drive the first sliding plate to move.

[0022] It also includes a small motor, and a power output end of the small motor is connected to the threaded rod.

[0023] Furthermore, the front side of the second transverse box frame is open, which facilitates the determination of the positions of the discharge port plugging plate and the second sliding plate of the current methanol synthesis reactor.

[0024] A methanol synthesis reactor catalyst unloading system, using the above-mentioned methanol synthesis reactor catalyst unloading device, comprises:

[0025] A discharge connection module, comprising a vertical box frame, wherein the vertical box frame is connected to the discharge hole of the methanol synthesis reactor via a flange on the top;

[0026] A catalyst collecting module, which is connected to the bottom of the vertical box frame and is used to collect the catalyst in the vertical box frame;

[0027] A spray module, which sprays and cools the catalyst collection module;

[0028] The plugging module is placed in the discharge connection module and is used to plug or open the discharge hole of the methanol synthesis reactor;

[0029] The passivation reaction chamber module is placed in the discharge connection module and is used to allow the catalyst to flow into the passivation reaction chamber module for passivation reaction after the discharge hole of the methanol synthesis reactor is opened;

[0030] The discharge module is placed in the unloading connection module and is used to allow the catalyst after the passivation reaction is completed to enter the catalyst collection module.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The methanol synthesis reactor discharge port plugging plate of the device can make an L-shaped movement to block the methanol synthesis reactor discharge hole, achieving efficient and stable blocking operation;

[0033] When the catalyst needs to be unloaded, the second sliding plate is placed on top of the first limiting slide, and the methanol synthesis reactor discharge port plugging plate and the second sliding plate are parallel to the right side of the first horizontal box frame. The right side of the methanol synthesis reactor discharge port plugging plate, the right side of the second sliding plate, the right side of the first limiting slide, the right side of the vertical baffle, the top of the horizontal baffle, the rear inner wall of the vertical box frame, the right inner wall of the vertical box frame, and the front inner wall of the vertical box frame form a passivation reaction chamber, so that the dropped catalyst is placed in the passivation reaction chamber, and water is added through the water inlet pipe to make the catalyst undergo a passivation reaction. When the methanol synthesis reactor discharge port plugging plate moves to the left, the methanol synthesis reactor discharge port plugging plate cooperates with the upper inner wall of the first horizontal box frame to allow the catalyst to fall into the passivation reaction chamber better.

[0034] After the passivation reaction is completed, continue to move the second sliding plate to the left so that the horizontal baffle moves to the left. By adjusting the opening of the horizontal baffle, the catalyst feeding speed is controlled so that the catalyst can be better collected. The horizontal baffle cooperates with the vertical baffle to enable the passivated catalyst to be well pushed into the barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The disclosure of the present invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0036] Figure 1 It is a structural schematic diagram of the first perspective of the front of the first horizontal box frame and the vertical box frame of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the second perspective of the front of the first horizontal box frame and the vertical box frame of the present invention;

[0038] Figure 3This is a schematic structural diagram of the present invention from a third perspective, looking through the front of the first horizontal box frame and the vertical box frame;

[0039] Figure 4 A schematic structural diagram of the first perspective of the present invention as a whole;

[0040] Figure 5 A schematic structural diagram of the second perspective of the present invention as a whole;

[0041] Figure 6 For the present invention Figure 1 Schematic diagram of the upper enlarged structure;

[0042] Figure 7 For the present invention Figure 2 Schematic diagram of the upper enlarged structure;

[0043] Figure 8 Schematic diagram of the cross-sectional structure of the elastic telescopic member of the present invention

[0044] Numbers in the figure: 1, first horizontal box frame; 2, second horizontal box frame; 3, vertical box frame; 4, collecting cone; 5, discharge pipe; 6, flange; 7, barrel; 8, first limiting slide; 9, water tank; 10, water pump; 11, first pipeline; 12, second pipeline; 13, support rod; 14, auxiliary pipeline; 15, small motor; 16, first limiting chute; 17, first sliding plate; 18, elastic member; 19, hinged rod; 20, A Alcohol synthesis reactor discharge port plugging plate; 21. Guide column; 22. Water inlet pipe; 23. Vertical baffle; 24. Horizontal baffle; 25. Auxiliary extrusion plate; 26. Push plate; 28. Second limiting slide groove; 29. ​​Threaded rod; 30. Second limiting slide plate; 31. Sprinkler head; 32. Water inlet tank cover; 33. Mounting hole; 34. Second sliding plate; 35. Elastic telescopic part; 351. Telescopic sleeve; 352. Spring; 353. Telescopic head. DETAILED DESCRIPTION

[0045] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention. Example

[0046] Key References Figure 1 、 Figure 2 、 Figure 4 、 Figure 5The vertical box frame 3 is box-shaped or cylindrical with an open top. Preferably, it is box-shaped with both top and bottom openings, with the left middle portion of the vertical box frame 3 open. The first horizontal box frame 1 is box-shaped with an open right side. The right opening of the first horizontal box frame 1 communicates with the left opening of the vertical box frame 3. The device appears to be a T-shaped structure.

[0047] Key References Figure 5 A flange 6 is fixedly mounted on the top outer wall of the vertical box frame 3. A plurality of mounting holes 33 are opened on the flange 6. The plurality of mounting holes 33 are evenly distributed, so that the flange 6 can be detachably mounted on the discharge hole of the methanol synthesis reactor, thereby facilitating cleaning or replacement of the device.

[0048] Key References Figure 6 and Figure 7 A first limiting slide 8 is fixedly connected to the middle of the inner wall of the first horizontal box frame 1, and a first limiting slide groove 16 is opened on the first limiting slide 8. The first sliding plate 17 and the second sliding plate 34 are connected to the first limiting slide groove 16 for sliding left and right. It should be noted that the right side of the first limiting slide 8 is closed to facilitate the subsequent formation of the passivation reaction chamber.

[0049] Key References Figure 6 and Figure 7 The first sliding plate 17 and the second sliding plate 34 are hingedly connected by hinged rods 19. There are four hinged rods 19, two at the front and two at the rear, which are used to stably drive the second sliding plate 34 and the methanol synthesis reactor discharge port plug 20 to perform vertical movement. Note that the right side of the second sliding plate 34 is longer and the left side is shorter, so that the right side of the second sliding plate 34 can be easily used to construct the passivation reaction chamber. The left side of the second sliding plate 34 is convenient for hinge connection, or other forms of connection, as needed to meet the requirements of hinge connection and passivation reaction chamber construction.

[0050] Key References Figure 6 An elastic member 18 is fixedly connected between the first sliding plate 17 and the second sliding plate 34 .

[0051] Key References Figure 6 and Figure 7 A methanol synthesis reactor discharge port plugging plate 20 is fixedly installed on the top right side of the second sliding plate 34. The cross-section of the methanol synthesis reactor discharge port plugging plate 20 is the same as the cross-section inside the vertical box frame 3, so that the methanol synthesis reactor discharge port plugging plate 20 can be sealed and moved out from above the vertical box frame 3, and the methanol synthesis reactor discharge hole is sealed.

[0052] Key References Figure 6 A second limiting slide 30 is fixedly installed at the bottom of the first sliding plate 17 , and the second limiting slide 30 passes through the first limiting slot 16 and the second limiting slot 28 opened through the lower inner wall of the first transverse box frame 1 .

[0053] Key References Figure 6 A second horizontal box frame 2 is fixedly installed at the bottom of the first horizontal box frame 1. The front of the second horizontal box frame 2 is open, which is convenient for determining the positions of the methanol synthesis reactor discharge port plugging plate 20 and the second sliding plate 34.

[0054] Key References Figure 7 A threaded rod 29 is connected between the two inner walls of the second horizontal box frame 2 for limiting rotation, and a second limiting slide 30 is threadedly connected to the outer wall of the threaded rod 29. Since the second limiting slide 30 is connected to the second limiting slide groove 28 for limiting sliding, the rotating threaded rod 29 can drive the second limiting slide 30 to move left and right.

[0055] Key References Figure 7 A small motor 15 is fixedly installed on the outer wall of the second horizontal box frame 2. The power output end of the small motor 15 is connected to the threaded rod 29, so that starting the small motor 15 drives the second limiting slide 30 and the first sliding plate 17 to move left and right, thereby driving the second sliding plate 34 and the methanol synthesis reactor discharge port plug 20 to perform an L-shaped movement.

[0056] Note that the right side of the first limiting slide 8 is level with the right side of the first horizontal box frame 1. A guide post 21 is fixedly connected between the right side of the first limiting slide 8 and the vertical box frame 3 to guide the second sliding plate 34 and maintain the stability of the device.

[0057] Key References Figure 7 The right bottom of the first limiting slide plate 8 is fixedly connected with a vertical baffle 23, and the bottom of the vertical baffle 23 is provided with a high temperature resistant and sealed elastic pad.

[0058] Key References Figure 7 and Figure 8The inner bottom of the first transverse box frame 1 is connected to a transverse baffle 24 in a limited sliding manner. The transverse baffle 24 can be slidably connected to the bottom of the vertical baffle 23, and the vertical baffle 23 can seal the top of the transverse baffle 24 through an elastic pad. The left inner wall of the first transverse box frame 1 is fixedly connected to an elastic telescopic member 35. The elastic telescopic member 35 in the retracted state is a telescopic rod with a spring 352 inside. The elastic telescopic member 35 includes a telescopic sleeve 351, and a telescopic head 353 is connected to the inner bottom of the telescopic sleeve 351 in a limited sliding manner. The spring 352 is fixedly connected between the telescopic head 353 and the inner bottom of the telescopic sleeve 351. In other words, the elastic member 35 remains extended under the action of the spring 352. When the telescopic head 353 is squeezed, causing the spring 352 to be squeezed, it enters a retracted state. The right telescopic head 353 of the elastic telescopic member 35 is connected to the transverse baffle 24, so that the right side of the transverse baffle 24 presses against the right inner wall of the vertical box frame 3 when the transverse baffle 24 is normally in contact with the right side of the vertical box frame 3. That is, when the second sliding plate 34 and the rightmost side of the methanol synthesis reactor discharge port plug 20 are parallel to the rightmost side of the first horizontal box frame 1, the right side of the methanol synthesis reactor discharge port plug 20, the right side of the second sliding plate 34, the right side of the first limiting slide 8, the right side of the vertical baffle 23, the top of the horizontal baffle 24, the rear inner wall of the vertical box frame 3, the right inner wall of the vertical box frame 3, and the front inner wall of the vertical box frame 3 constitute a passivation reaction chamber.

[0059] The middle of the vertical box frame 3 is connected with a water inlet pipe 22, and the level of the water inlet pipe 22 is higher than the horizontal baffle 24. After the passivation reaction chamber is formed, water is introduced from the water inlet pipe 22 to perform the catalyst passivation reaction.

[0060] Embodiment 2: Based on embodiment 1, a technical means is added to automatically release the passivation reaction chamber by the transverse baffle 24 .

[0061] Key References Figure 6 and Figure 7 The auxiliary extrusion plate 25 is fixedly connected to the top left side of the transverse baffle 24, and the expansion head 353 of the elastic expansion member 35 is fixedly connected to the auxiliary extrusion plate 25. The push plate 26 is fixedly connected to the bottom left side of the second sliding plate 34. The push plate 26 passes through the first limiting sliding groove 16 and is placed on the right side of the auxiliary extrusion plate 25.

[0062] It should be noted that when the push plate 26 follows the second sliding plate 34 to move upward, the push plate 26 will not squeeze the vertical baffle 23 because the left side of the second sliding plate 34 is longer. When the methanol synthesis reactor discharge port plug 20 moves upward in the vertical box frame 3, the left side of the second sliding plate 34 is still placed in the first horizontal box frame 1.

[0063] In summary, when the second sliding plate 34 moves leftward, the push plate 26 moves leftward, and the push plate 26 pushes the auxiliary extrusion plate 25 so that the transverse baffle 24 is gradually opened, and the opening degree of the transverse baffle 24 is adjustable, thereby facilitating the adjustment of the catalyst discharge speed.

[0064] The other structures are the same as those in the first embodiment.

[0065] Example 3: Based on Example 2, a technical means for better collecting the catalyst is added.

[0066] Key References Figure 3 A collecting cone 4 is fixedly installed at the bottom of the vertical box frame 3, and a discharge pipe 5 is installed at the bottom of the collecting cone 4. The discharge pipe 5 is placed in the barrel body 7 to allow the catalyst to enter the barrel body 7 safely.

[0067] An auxiliary pipe 14 is fixedly installed on the support rod 13, and a spray head 31 is fixedly installed at the bottom of the auxiliary pipe 14. The spray head 31 faces the inside of the barrel body 7. A first pipe 11 and a second pipe 12 are installed on the water pump 10. The side of the first pipe 11 away from the water pump 10 is placed in the water tank 9, and the side of the second pipe 12 away from the water pump 10 is connected to the auxiliary pipe 14.

[0068] The other structures are the same as those in the second embodiment.

[0069] In this embodiment, the device is first fixed to the methanol synthesis reactor discharge port via flange 6. Then, the small motor 15 is activated to cause the second limiting slide plate 30 and the first sliding plate 17 to move rightward. At this time, the first sliding plate 17, under the action of the elastic member 18 and the hinged rod 19, drives the second sliding plate 34 and the methanol synthesis reactor discharge port plugging plate 20 to move rightward. After the methanol synthesis reactor discharge port plugging plate 20 contacts the inner wall of the vertical box frame 3, the methanol synthesis reactor discharge port plugging plate 20 moves upward under the action of the multiple hinged rods 19 and the elastic member 18 and moves to the methanol synthesis reactor discharge port, sealing it.

[0070] It should be noted that the top of the methanol synthesis reactor discharge port plugging plate 20 is preferably horizontal.

[0071] When the methanol synthesis reactor needs to unload the catalyst, the small motor 15 is started in reverse. Under the action of the elastic member 18, the methanol synthesis reactor discharge port plug 20 and the second sliding plate 34 move vertically downward and move to the left when the second sliding plate 34 moves to the top of the first limiting slide 8. The methanol synthesis reactor discharge port plug 20 cooperates with the inner wall of the first horizontal box frame 1 so that the catalyst falls to the top of the horizontal baffle 24, thereby achieving better unloading.

[0072] At this time, the transverse baffle 24 has sufficient supporting force under the action of the elastic telescopic member 35 .

[0073] At this time, the right side of the methanol synthesis reactor discharge port plug 20, the right side of the second sliding plate 34, the right side of the first limiting slide 8, the right side of the vertical baffle 23, the top of the horizontal baffle 24, the rear inner wall of the vertical box frame 3, the right inner wall of the vertical box frame 3, and the front inner wall of the vertical box frame 3 constitute a passivation reaction chamber. By adding water to the water inlet pipe 22, the catalyst in the passivation reaction chamber undergoes a passivation reaction.

[0074] After the reaction is completed, the small motor 15 is started in reverse to move the second sliding plate 34 to the left. The second sliding plate 34 drives the push plate 26 and the auxiliary extrusion plate 25 to move to the left, so that the transverse baffle 24 moves to the left. The falling speed of the catalyst is adjusted by adjusting the opening degree of the transverse baffle 24. The catalyst enters the barrel body 7 from the discharge pipe 5 and is sprayed with water through the spray head 31 to cool it down according to the temperature state of the barrel body 7.

[0075] Finally, the horizontal baffle 24, in cooperation with the vertical baffle 23, pushes all the catalysts thereon into the barrel 7, completing the collection operation after the catalyst passivation.

[0076] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A methanol synthesis reactor catalyst unloading device, characterized in that: include: A vertical box frame (3), the top of the vertical box frame (3) is connected to the discharge hole of the methanol synthesis reactor, and the bottom of the vertical box frame (3) is provided with a catalyst collecting mechanism; The left side of the middle of the vertical box frame (3) is connected to the first horizontal box frame (1), a first limit slide (8) is fixedly connected to the inside of the first horizontal box frame (1), a second sliding plate (34) is slidably connected to the upper limit of the first limit slide (8), and the second sliding plate (34) is fixedly connected to the methanol synthesis reactor discharge port plug (20) near the top of the right side; The inner bottom of the first horizontal box frame (1) is limitedly slidably connected to a horizontal baffle (24), the bottom of the first limiting slide plate (8) near the right side is fixedly connected to a vertical baffle (23), the horizontal baffle (24) is sealingly slidably connected to the bottom of the vertical baffle (23), and the inner wall of the first horizontal box frame (1) is connected to the horizontal baffle (24) via an elastic telescopic member (35); The middle of the vertical box frame (3) is connected to a water inlet pipe (22); A driving mechanism, wherein the driving mechanism includes a first sliding plate (17), the first limiting slide plate (8) is slidingly connected to the first sliding plate (17) and the second sliding plate (34) through a first limiting sliding groove (16) thereon, a hinge rod (19) is hinged between the first sliding plate (17) and the second sliding plate (34), and an elastic member (18) is connected between the first sliding plate (17) and the second sliding plate (34), so that when the second sliding plate (34) and the methanol synthesis reactor discharge port blocking plate (20) are squeezed onto the right inner wall of the vertical box frame (3), the methanol synthesis reactor discharge port blocking plate (20) and the second sliding plate (34) move upward to block the methanol synthesis reactor discharge hole; The left bottom of the second sliding plate (34) is fixedly connected to a push plate (26), and the left top of the transverse baffle (24) is fixedly connected to an auxiliary extrusion plate (25). When the second sliding plate (34) is placed on the first limiting slide plate (8) and moves to the left, it drives the push plate (26) to move to the left to squeeze the auxiliary extrusion plate (25), so that the transverse baffle (24) is gradually opened; Also included is a moving mechanism for moving the first sliding plate (17); The driving mechanism causes the second sliding plate (34) to perform an L-shaped movement. When the second sliding plate (34) performs a vertical movement, the methanol synthesis reactor discharge port plugging plate (20) is removed from the top of the vertical box frame (3) and the methanol synthesis reactor discharge hole is blocked; when the second sliding plate (34) performs a horizontal movement to a first preset position, the methanol synthesis reactor discharge port plugging plate (20), the second sliding plate (34), the first limiting slide plate (8), the inner wall of the vertical box frame (3), the vertical baffle (23), and the horizontal baffle (24) form a passivation reaction chamber. Water is introduced from the water inlet pipe (22) to perform a passivation operation. After the passivation is completed, the second sliding plate (34) performs a horizontal movement and drives the horizontal baffle (24) to move to release the passivation space so that the catalyst can be safely removed; The moving mechanism includes a second horizontal box frame (2), the bottom of the first horizontal box frame (1) is fixedly connected to the second horizontal box frame (2), a threaded rod (29) is connected between the two side walls of the second horizontal box frame (2) for limited rotation, the outer wall of the threaded rod (29) is threadedly connected to a second limiting slide (30), the top of the second limiting slide (30) is limitedly slidably connected to a second limiting slide groove (28) provided at the inner bottom of the first horizontal box frame (1), the top of the second limiting slide (30) is fixedly connected to the first sliding plate (17) for driving the first sliding plate (17) to move, It also includes a small motor (15), wherein the power output end of the small motor (15) is connected to the threaded rod (29); The front of the second transverse box frame (2) is open, which facilitates the determination of the positions of the current methanol synthesis reactor discharge port blocking plate (20) and the second sliding plate (34).

2. A methanol synthesis reactor catalyst unloading device according to claim 1, characterized in that: A flange (6) is fixedly mounted on the top outer wall of the vertical box frame (3), and a plurality of mounting holes (33) are provided on the flange (6) for detachable mounting with a discharge port at a discharge hole of a methanol synthesis reactor.

3. A methanol synthesis reactor catalyst unloading device according to claim 1, characterized in that: The catalyst collecting mechanism comprises a collecting conical cylinder (4), the bottom of the vertical box frame (3) is open, and the collecting conical cylinder (4) is fixedly installed at the bottom of the vertical box frame (3), and the bottom of the collecting conical cylinder (4) is connected to a discharge pipe (5) installed, and the discharge pipe (5) is placed in the barrel (7) to allow the catalyst to enter the barrel (7) safely; It also includes a spraying mechanism for spraying the catalyst in the barrel (7).

4. A methanol synthesis reactor catalyst unloading device according to claim 3, characterized in that: The spray mechanism comprises a water pump (10), a water tank (9), a support rod (13), and a spray head (31). An auxiliary pipe (14) is fixedly mounted on the support rod (13). The spray head (31) is fixedly mounted on the bottom of the auxiliary pipe (14). The spray head (31) faces the interior of the barrel (7). A first pipe (11) and a second pipe (12) are mounted on the water pump (10). The side of the first pipe (11) away from the water pump (10) is placed in the water tank (9), and the side of the second pipe (12) away from the water pump (10) is connected to the auxiliary pipe (14).

5. A methanol synthesis reactor catalyst unloading device according to claim 4, characterized in that: The water inlet at the top of the water tank (9) is provided with a water inlet tank cover (32).

6. A methanol synthesis reactor catalyst unloading device according to claim 5, characterized in that: A guide column (21) is fixedly connected between the first limiting slide plate (8) and the inner wall of the vertical box frame (3).

7. A methanol synthesis reactor catalyst unloading system, using the methanol synthesis reactor catalyst unloading device according to claim 6, characterized in that: include: A discharge connection module, the discharge connection module comprising a vertical box frame (3), the vertical box frame (3) being connected to a discharge hole of a methanol synthesis reactor via a flange (6) at the top; A catalyst collection module, the catalyst collection module being in communication with the bottom of the vertical box frame (3) and being used to collect the catalyst in the vertical box frame (3); A spray module, which sprays and cools the catalyst collection module; The plugging module is placed in the discharge connection module and is used to plug or open the discharge hole of the methanol synthesis reactor; The passivation reaction chamber module is placed in the discharge connection module and is used to allow the catalyst to flow into the passivation reaction chamber module for passivation reaction after the discharge hole of the methanol synthesis reactor is opened; The discharge module is placed in the unloading connection module and is used to allow the catalyst after the passivation reaction is completed to enter the catalyst collection module.

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