Reactor for sulfur recovery

Abstract

The utility model relates to a reactor for sulfur recovery, which comprises a top cover, a reaction tank, an auxiliary device and a base, and is characterized in that a movable body is arranged, a motor is started, a pinion rotates along with a bearing in an annular track, a meshed large gear is driven to rotate, and a round rod annularly moves to conveniently drive a sleeved sliding block to move; the sliding block drives the transverse plate frame to move up and down while moving along the grooved rail of the transverse plate frame, so that the grating connected with the transverse plate frame can be driven to move up and down, a catalyst borne by the upper end face of the grating can move under inertia force, and the phenomenon that condensate is easily attached to the surface of the catalyst in the reaction process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfur recovery, in particular to a reactor for sulfur recovery. Background Art

[0002] Sulfur is collected from sour natural gas products. It is mainly a production method for recovering sulfur through the Claus process. It is a low-temperature type of Claus tail gas hydrogenation at a temperature of 220-240°C. Under the action of a catalyst, hydrogen sulfide and sulfur dioxide in the process gas are in a certain proportion. Sulfur is produced at low temperatures. Usually, elemental sulfur is yellow crystals, also known as sulfur.

[0003] When optimizing the existing sulfur recovery reactors, most of them are reflected in improving the sulfur recovery rate and reducing the pollution caused by exhaust gas emissions. For example, the Chinese utility model patent with application number CN201120236000.3 discloses "A sulfur recovery device with a catalytic oxidation adsorption reactor". In this device, multiple direct oxidation reactors are connected in sequence in the pipeline. The technical point is that a first catalytic oxidation adsorption reactor and a second catalytic oxidation adsorption reactor are added in parallel after the last direct oxidation reactor, which can not only achieve zero emission of sulfides, but also occupy a small area, require less investment, have low operating costs and low energy consumption, and have better economy.

[0004] Although the above-mentioned sulfur recovery reactor has certain advantages in improving sulfur recovery rate and reducing pollution caused by exhaust gas, it still has certain disadvantages: during the operation of the Claus reactor, the catalyst is usually just placed statically on the grid. Since different catalysts have different activities at different temperatures, the bed temperature is also controlled differently. During the reaction, condensed substances are easily attached to the catalyst surface, the contact area between the catalyst and the gas is reduced, the catalytic effect is poor, and the sulfur recovery reaction efficiency is low. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In order to solve the above technical problems, the utility model provides a reactor for sulfur recovery.

[0007] (II) Technical solution

[0008] Based on this, the utility model provides the following technical solutions: a reactor for sulfur recovery, comprising a top cover, a reaction tank, an auxiliary device and a base, wherein the top cover is movably mounted on the top of the reaction tank, the bottom end of the reaction tank is embedded and connected with the base, and the auxiliary device is mounted on the outside of the reaction tank; the reaction tank comprises a tank body, a thermal insulation lining, a steam heater, an air inlet, a gas outlet, a grille, a wire mesh, a bubble port, a drain port, a flow outlet and a slope, the thermal insulation lining is connected to the inner side of the tank body, the steam heater is mounted at an upper position on the inner side of the thermal insulation lining, the air inlet passes through the tank body and the thermal insulation lining, the rear end of the gas outlet passes through the tank body and the thermal insulation lining, the grille is mounted inside the thermal insulation lining and is slidably engaged, the wire mesh is located below the grille, the rear end of the bubble port passes through the tank body and the thermal insulation lining, the drain port passes through the tank body and the thermal insulation lining, the flow outlet is located below the drain port, and the slope is located at the inner bottom position of the thermal insulation lining.

[0009] Preferably, the auxiliary device includes a box chamber, a directional plate frame, a motor, a cross plate frame, a movable body and a slider, the directional plate frame is located inside the box chamber, the motor is embedded inside the box chamber, the cross plate frame passes through the side end of the box chamber and is movably engaged, the movable body is connected to the output end of the motor and is movably engaged, the slider is located inside the cross plate frame and is slidably engaged, and the cross plate frame is connected to the movable body through the slider and is movably engaged.

[0010] Preferably, the movable body includes a pinion, a large gear, a round rod, a sleeve rod and a linkage structure. The gap of the linkage structure is located behind the large gear and is movably engaged. The round rod and the large gear are an integrated structure and are vertically located on their front end faces. The sleeve rod is sleeved and movably engaged with one side end of the linkage structure. The sleeve rod is connected to the rear of the pinion and is rotatably engaged. The pinion is movable with the linkage structure via the sleeve rod, and the pinion and the large gear are meshingly engaged.

[0011] Preferably, the linkage structure comprises a connecting plate, a central through-shaft and a moving block, the central through-shaft penetrates through the connecting plate and is pressed into the moving block, and the gap of the moving block is located behind the connecting plate.

[0012] Preferably, the top cover is movably installed on the top of the tank body, the auxiliary device passes through the tank body and the thermal insulation lining, the auxiliary device is provided at two locations and is symmetrically distributed, the slope of the slope is five degrees, the gas outlet is the outlet for the generated sulfur dioxide to be discharged, and personnel can install a container filled with sodium hydroxide liquid outside the tank body for gas absorption.

[0013] Preferably, one end of the horizontal plate frame is connected to the bottom of the tank body and the thermal insulation lining and movably cooperates with the bottom, the box chamber is embedded and connected to the outside of the tank body, and the motor provides driving force for the movable body to facilitate the position change of the horizontal plate frame.

[0014] Preferably, the small gear is connected to the output end of the motor and rotates together, the round rod is connected through the slider, the large gear and the round rod are movably matched behind the cross frame, and the small gear generates annular displacement movement under the drive of the motor, and causes the large gear to rotate, thereby causing the round rod to displace, driving the cross frame to move up and down, thereby facilitating the up and down displacement of the grille.

[0015] Preferably, the central through shaft passes through the middle end of the large gear, and the cooperation between the central through shaft and the moving block enables the round rod to have displacement changes.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a reactor for sulfur recovery, which has the following beneficial effects:

[0018] 1. A reactor for sulfur recovery, wherein a cobalt-molybdenum catalyst is placed above a grid, a steam heater is adjusted to a suitable heating temperature, a top cover is put on, hydrogen is discharged into the tank from an air inlet, the generated sulfur dioxide gas is discharged to the outside through a gas outlet, and condensed water generated by a hydrolysis reaction is discharged to the outside through a drain outlet, and the progress of the reaction is judged at the bubble outlet according to the number of bubbles, and the generated sulfur liquid is discharged to the drain outlet along a slope, thereby collecting sulfur, so that the device can perform sulfur recovery operations.

[0019] 2. The reactor for sulfur recovery is provided with a movable body, and a motor is started to make the small gear rotate in a circular trajectory along the bearing, driving the meshing large gear to rotate, so that the circular displacement of the round rod is convenient for driving the displacement of the sleeved slider, and the slider moves along the groove track of the horizontal plate frame while also driving the horizontal plate frame to move up and down, so that the grille connected to the horizontal plate frame can be driven to move up and down, so that the catalyst carried on its upper end surface can be moved by the inertial force, thereby avoiding the phenomenon that condensate is easily attached to the surface of the catalyst during the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the reaction tank of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the auxiliary device of the utility model;

[0023] Figure 4It is a structural schematic diagram of the movable body of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the linkage structure of the utility model.

[0025] In the figure: top cover-1, reaction tank-2, auxiliary device-3, base-4, tank body-21, thermal insulation lining-22, steam heater-23, air inlet-24, gas outlet-25, grille-26, wire mesh-27, bubble outlet-28, drain outlet-29, discharge outlet-210, slope-211, box chamber-31, directional plate frame-32, motor-33, horizontal plate frame-34, movable body-35, slider-36, small gear-351, large gear-352, round rod-353, sleeve rod-354, linkage structure-355, connecting plate-551, center through shaft-552, moving block-553. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-2A reactor for sulfur recovery comprises a top cover 1, a reaction tank 2, an auxiliary device 3 and a base 4, wherein the top cover 1 is movably mounted on the top of the reaction tank 2, the bottom of the reaction tank 2 is embedded and connected with the base 4, and the auxiliary device 3 is mounted on the outside of the reaction tank 2; the reaction tank 2 comprises a tank body 21, a heat-insulating lining 22, a steam heater 23, an air inlet 24, a gas outlet 25, a grille 26, a wire mesh 27, a bubble port 28, a drain port 29, a drain port 210 and a slope 211, the heat-insulating lining 22 is connected to the inner side of the tank body 21, the steam heater 23 is mounted at an upper position on the inner side of the heat-insulating lining 22, the air inlet 24 passes through the tank body 21 and the heat-insulating lining 22, the rear end of the gas outlet 25 passes through the tank body 21 and the heat-insulating lining 22, and the rear end of the gas outlet 25 passes through the tank body 21 and the heat-insulating lining 22. In the lining 22, the grille 26 is installed inside the thermal insulation lining 22 and slides in engagement, the wire mesh 27 is located below the grille 26, the rear end of the bubble port 28 passes through the tank body 21 and the thermal insulation lining 22, the drain port 29 passes through the tank body 21 and the thermal insulation lining 22, the drain port 210 is located below the drain port 29, the slope 211 is located at the inner bottom position of the thermal insulation lining 22, the top cover 1 is movably installed on the top of the tank body 21, the auxiliary device 3 passes through the tank body 21 and the thermal insulation lining 22, the auxiliary device 3 is provided at two locations and is symmetrically distributed, the slope 211 has a slope of five degrees, the gas outlet 25 is the outlet for the generated sulfur dioxide to be discharged, and personnel can install a container filled with sodium hydroxide liquid outside the tank body 21 for gas absorption.

[0028] See also Figure 3-4A reactor for sulfur recovery, the auxiliary device 3 includes a chamber 31, a directional plate frame 32, a motor 33, a horizontal plate frame 34, a movable body 35 and a slider 36, the directional plate frame 32 is located inside the chamber 31, the motor 33 is embedded and installed inside the chamber 31, the horizontal plate frame 34 passes through the side end of the chamber 31 and is movably engaged, the movable body 35 is connected to the output end of the motor 33 and is movably matched, the slider 36 is located inside the horizontal plate frame 34 and is slidably matched, the horizontal plate frame 34 is connected to the movable body 35 through the slider 36 and is movably matched, the movable body 35 includes a small gear 351, a large gear 352, a round rod 353, a sleeve rod 354 and a linkage structure 355, the linkage structure 355 is gapped behind the large gear 352 and is movably matched, the round rod 353 and the large gear 352 are an integrated structure and are vertically located on their front end surfaces, and the sleeve rod 354 is sleeved with one side end of the linkage structure 355 The pinion 351 is movable with the linkage structure 355 through the pinion 354. The pinion 351 meshes with the large gear 352. One end of the cross plate frame 34 is connected to the bottom of 226 by passing through the tank body 21 and the thermal insulation lining 22 and is movably matched. The box chamber 31 is embedded and connected to the outside of the tank body 21. The motor 33 provides driving force for the movable body 35 to facilitate the position change of the cross plate frame 34. The pinion 351 is connected to the output end of the motor 33 and is rotatably matched. The round rod 353 is connected through the slider 36. The large gear 352 and the round rod 353 are movably matched at the rear of the cross plate frame 34. The pinion 351 generates annular displacement movement under the drive of the motor 33, and causes the large gear 352 to rotate, thereby causing the round rod 353 to displace, driving the cross plate frame 34 to move up and down, facilitating the up and down displacement of the grille 26.

[0029] See also Figure 5 A reactor for sulfur recovery, the linkage structure 355 includes a connecting plate 551, a central through-shaft 552 and a moving block 553, the central through-shaft 552 penetrates the connecting plate 551 and is pressed into the moving block 553, the gap of the moving block 553 is located behind the connecting plate 551, the central through-shaft 552 penetrates the middle end of the large gear 352, the cooperation between the central through-shaft 552 and the moving block 553 enables the round rod 353 to have displacement changes.

[0030] In summary, the cobalt-molybdenum catalyst is placed above the grid 26, the steam heater 23 is adjusted to a suitable heating temperature, the top cover 1 is covered, so that the tank body 21 is a closed space, and hydrogen is discharged into the tank body 21 from the air inlet 24. Under the action of the cobalt-molybdenum catalyst, a chemical reaction occurs, and the generated sulfur dioxide gas is discharged to the outside through the gas outlet 25 and absorbed by sodium hydroxide. The condensed water generated by the hydrolysis reaction is discharged to the outside through the drain port 29, and the reaction progress is judged at the bubble port 28 according to the number of bubbles. The generated sulfur liquid is discharged to the drain port 210 along the slope 211, thereby collecting sulfur, so that the device performs sulfur recovery operations, and A movable body 35 is provided, and one side end of the horizontal plate frame 34 is connected to the bottom of the grille 26. The motor 33 is started to make the small gear 351 rotate in a circular trajectory along the bearing, driving the meshing large gear 352 to rotate, so that the round rod 353 is displaced in a circular manner to facilitate the displacement of the sleeved slider 36. While the slider 36 moves along the groove track of the horizontal plate frame 34, it also drives the horizontal plate frame 34 to move up and down, so that the grille 26 connected to the horizontal plate frame 34 can be driven to move up and down along the inner wall of the thermal insulation lining 22, so that the catalyst carried on its upper end surface can be moved due to inertia, thereby avoiding the phenomenon of condensate adhering to the surface of the catalyst during the reaction.

[0031] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0032] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sulfur recovery reactor, characterized in that: The invention comprises a top cover (1), a reaction tank (2), an auxiliary device (3) and a base (4), wherein the top cover (1) is movably mounted on the top of the reaction tank (2), the bottom of the reaction tank (2) is embedded and fixedly connected to the base (4), and the auxiliary device (3) is mounted on the outside of the reaction tank (2); The reaction tank (2) comprises a tank body (21), a heat-insulating lining (22), a steam heater (23), an air inlet (24), a gas outlet (25), a grille (26), a wire mesh (27), a bubble port (28), a water outlet (29), a discharge port (210) and a slope (211); the heat-insulating lining (22) is connected to the inner side of the tank body (21); the steam heater (23) is installed at an upper position on the inner side of the heat-insulating lining (22); the air inlet (24) passes through the tank body (21) and the heat-insulating lining (22); the gas outlet (25 ... The rear end of the outlet (25) passes through the tank body (21) and the thermal insulation lining (22); the grille (26) is installed inside the thermal insulation lining (22) and is slidably engaged; the wire mesh (27) is located below the grille (26); the rear end of the bubble port (28) passes through the tank body (21) and the thermal insulation lining (22); the drain port (29) passes through the tank body (21) and the thermal insulation lining (22); the drainage port (210) is located below the drainage port (29); and the slope (211) is located at the inner bottom of the thermal insulation lining (22).

2. A sulfur recovery reactor according to claim 1, characterized in that: The auxiliary device (3) comprises a box chamber (31), a directional plate frame (32), a motor (33), a transverse plate frame (34), a movable body (35) and a slider (36); the directional plate frame (32) is located inside the box chamber (31); the motor (33) is embedded and installed inside the box chamber (31); the transverse plate frame (34) passes through the side end of the box chamber (31) and is movably engaged; the movable body (35) is connected to the output end of the motor (33) and is movably engaged; the slider (36) is located inside the transverse plate frame (34) and is slidably engaged; the transverse plate frame (34) is connected to the movable body (35) through the slider (36) and is movably engaged.

3. A sulfur recovery reactor according to claim 2, characterized in that: The movable body (35) comprises a pinion (351), a large gear (352), a round rod (353), a sleeve rod (354) and a linkage structure (355); the linkage structure (355) is gap-located behind the large gear (352) and is movably engaged with the large gear (352); the round rod (353) and the large gear (352) are an integrated structure and are vertically located on the front end thereof; the sleeve rod (354) is sleeve-engaged with one side end of the linkage structure (355) and is movably engaged with the large gear (352); the sleeve rod (354) is connected to the rear of the pinion (351) and is rotatably engaged with the small gear (351); the pinion (351) is movable with the linkage structure (355) via the sleeve rod (354); and the pinion (351) and the large gear (352) are meshed with each other.

4. A sulfur recovery reactor according to claim 3, characterized in that: The linkage structure (355) comprises a connecting plate (551), a central through-shaft (552) and a moving block (553); the central through-shaft (552) penetrates through the connecting plate (551) and is pressed into the moving block (553); a gap of the moving block (553) is located behind the connecting plate (551).

5. A sulfur recovery reactor according to claim 1, characterized in that: The top cover (1) is movably mounted on the top of the tank body (21), and the auxiliary device (3) passes through the tank body (21) and the heat insulation lining (22).

6. A sulfur recovery reactor according to claim 2, characterized in that: One end of the horizontal plate frame (34) is connected to the bottom of (226) and movably cooperates with it by passing through the tank body (21) and the thermal insulation lining (22), and the box chamber (31) is embedded and connected to the outer side of the tank body (21).

7. A sulfur recovery reactor according to claim 3, characterized in that: The small gear (351) is connected to the output end of the motor (33) and is rotatably matched, the round rod (353) is connected through the slider (36), and the large gear (352) and the round rod (353) are movably matched behind the horizontal plate frame (34).

8. A sulfur recovery reactor according to claim 4, characterized in that: The central through shaft (552) passes through the middle end of the large gear (352).

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