Fixed bed reactor device for cyclization dehydrogenation

Abstract

The utility model relates to a fixed bed reactor device for cyclization dehydrogenation, which comprises a shell and a catalyst fixed bed fixedly connected in the shell, a hollow fixed cylinder is fixedly arranged at the upper half part of the shell in a penetrating manner, a pump body is fixedly connected with the top of the shell, the output end of the pump body is communicated with the fixed cylinder, and the fixed cylinder is fixedly connected with the shell. The bottom end of the fixed barrel is rotatably connected with a transverse strip, a transverse groove is formed in the bottom of the transverse strip, a spray head is arranged in the transverse groove, an adjusting part is arranged in the transverse strip, a circulation part is arranged between the spray head and the fixed barrel, and a linkage part is arranged between the fixed barrel and the transverse strip. The utility model relates to the technical field of fixed bed reactors. When the motor works, the spray head is driven to horizontally reciprocate and rotate by taking the fixed cylinder as a circle center, so that reaction materials can uniformly and fully fall to each position on a catalyst fixed bed, the uniform reaction temperature and complete catalytic reaction are ensured, and the cyclization dehydrogenation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixed bed reactors, in particular to a fixed bed reactor device for cyclodehydrogenation. Background Art

[0002] Dehydrogenation cyclization reaction has a wide range of uses in the synthesis of various biologically active or functional molecules. The method is to transport the material into a reactor, contact the catalyst fixed bed for catalytic reaction, and then pass through the catalyst fixed bed to discharge the reactor. During this process, the temperature in the reactor is adjusted to achieve reaction heat exchange.

[0003] The reaction materials generally enter the reactor from the upper half of the reactor. However, since the feed pipe and the fixed bed are both in a fixed state, the reaction materials discharged from the feed pipe are difficult to be evenly distributed on the fixed bed. Some fixed beds far away from the feed pipe will rarely come into contact with the reaction materials, which can easily lead to uneven temperature of the catalyst fixed bed and incomplete catalytic reaction, thereby reducing the cyclodehydrogenation effect. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a fixed-bed reactor device for cyclodehydrogenation, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A fixed-bed reactor device for cyclodehydrogenation comprises a shell and a catalyst fixed bed fixedly connected to the shell, a hollow fixed cylinder fixedly penetrates the upper half of the shell, a pump body is fixedly connected to the top of the shell, the output end of the pump body is communicated with the fixed cylinder, a horizontal bar is rotatably connected to the bottom end of the fixed cylinder, a horizontal groove is provided at the bottom of the horizontal bar, a nozzle is provided in the horizontal groove, an adjustment portion is provided in the horizontal bar, a flow portion is provided between the nozzle and the fixed cylinder, and a linkage portion is provided between the fixed cylinder and the horizontal bar.

[0007] Furthermore, the linkage part includes a fixed gear fixedly sleeved on the outer circumference of the fixed cylinder, the outer circumference of the fixed cylinder is located above the fixed gear and is rotatably sleeved with a top plate, the bottom surface of the top plate is rotatably connected to a rotating rod, the outer circumference of the rotating rod is fixedly sleeved with a driven gear, the driven gear is meshed with the fixed gear, and the rotating rod rotates through the horizontal bar.

[0008] Furthermore, the adjustment part includes a motor fixedly connected to the inner wall of the transverse groove, the output end of the motor is transmission-connected to a drive rod, the end of the drive rod away from the motor is fixedly connected to a reciprocating screw, the end of the reciprocating screw away from the drive rod is rotationally connected to the inner wall of the transverse groove, the outer peripheral surface of the reciprocating screw is threadedly connected to a screw block, the nozzle is fixedly connected to the bottom of the screw block, and the rotating rod and the drive rod are transmission-connected via a bevel gear set.

[0009] Furthermore, the circulation part includes a shell that is rotatably sleeved on the lower half of the outer circumference of the fixed cylinder, and the inner wall of the fixed cylinder is located inside the shell and has a plurality of through holes. A hose is fixedly penetrated on one side of the shell, and the end of the hose away from the shell is connected to the nozzle.

[0010] Furthermore, the bottom of the shell is fixedly connected to the top of the horizontal bar.

[0011] Furthermore, the two opposite side walls of the screw block are in contact with the inner side walls of the transverse groove.

[0012] In summary, the present invention has at least one of the following beneficial technical effects:

[0013] 1. This fixed-bed reactor device for cyclodehydrogenation uses a pump body to eject reactants through a nozzle. The motor drives the nozzle to reciprocate horizontally while rotating around a fixed cylinder, thereby allowing the reactants to fall evenly and fully onto all locations on the catalyst bed. This ensures a uniform reaction temperature and complete catalytic reaction, thereby improving the cyclodehydrogenation effect.

[0014] 2. In a fixed-bed reactor device for cyclodehydrogenation, the shell rotates synchronously with the nozzle, thereby preventing the hose from being wrapped around the outer periphery of the shell and being squeezed and pulled when the horizontal bar rotates, thereby ensuring that the reaction materials can flow stably from the shell to the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 is a front cross-sectional view of a fixed-bed reactor device for cyclodehydrogenation according to this embodiment;

[0017] Figure 2 This is an internal diagram of a horizontal bar in a fixed-bed reactor apparatus for cyclodehydrogenation according to this embodiment;

[0018] Figure 3 This is an internal diagram of the flow section of a fixed-bed reactor device for cyclodehydrogenation according to this embodiment.

[0019] In the figure, 1. shell; 2. catalyst fixed bed; 3. fixed cylinder; 4. pump body; 5. horizontal bar; 6. horizontal groove; 7. nozzle; 8. adjustment part; 81. motor; 82. drive rod; 83. reciprocating screw; 84. screw block; 85. bevel gear set; 9. circulation part; 91. outer shell; 92. through hole; 93. hose; 10. linkage part; 101. fixed gear; 102. top plate; 103. rotating rod; 104. driven gear. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings.

[0021] Example:

[0022] Reference Figures 1 to 3 The utility model discloses a fixed-bed reactor device for cyclodehydrogenation, comprising a shell 1 and a catalyst fixed bed 2 fixedly connected to the shell 1, a hollow fixed cylinder 3 fixedly penetrated in the upper half of the shell 1, a pump body 4 fixedly connected to the top of the shell 1, the output end of the pump body 4 is communicated with the fixed cylinder 3, the bottom end of the fixed cylinder 3 is rotatably connected to a horizontal bar 5, a horizontal groove 6 is opened at the bottom of the horizontal bar 5, a nozzle 7 is arranged in the horizontal groove 6, an adjusting part 8 is arranged in the horizontal bar 5, a flow part 9 is arranged between the nozzle 7 and the fixed cylinder 3, and a linkage part 10 is arranged between the fixed cylinder 3 and the horizontal bar 5.

[0023] In this embodiment, the opposite ends of the horizontal bar 5 are in contact with the inner wall of the shell 1. The pump body 4 works to transport the reaction materials into the fixed cylinder 3, and then transports them to the nozzle 7 through the circulation part 9, and is sprayed downward from the nozzle 7 to the catalyst fixed bed 2, thereby performing the cyclodehydrogenation operation.

[0024] In a further preferred embodiment of the present invention, Figure 1 As shown, the linkage part 10 includes a fixed gear 101 fixedly sleeved on the outer circumference of the fixed cylinder 3, the outer circumference of the fixed cylinder 3 is located above the fixed gear 101 and is rotatably sleeved with a top plate 102, the bottom surface of the top plate 102 is rotatably connected to a rotating rod 103, and the outer circumference of the rotating rod 103 is fixedly sleeved with a driven gear 104, the driven gear 104 is engaged with the fixed gear 101, and the rotating rod 103 rotates through the horizontal bar 5.

[0025] In this embodiment, when the rotating rod 103 rotates, it drives the driven gear 104 to rotate. Since the driven gear 104 and the fixed gear 101 are engaged, the driven gear 104 crawls on the outer peripheral side of the fixed gear 101, thereby driving the rotating rod 103 to rotate with the cylinder as the center. Therefore, the top plate 102 and the horizontal bar 5 also rotate with the cylinder as the center, and the horizontal bar 5 drives the nozzle 7 to rotate.

[0026] In a further preferred embodiment of the present invention, Figure 2 As shown, the adjusting portion 8 includes a motor 81 fixedly connected to the inner wall of the transverse groove 6, the output end of the motor 81 is transmission-connected to a driving rod 82, the end of the driving rod 82 away from the motor 81 is fixedly connected to a reciprocating screw 83, the end of the reciprocating screw 83 away from the driving rod 82 is rotationally connected to the inner wall of the transverse groove 6, the outer circumference of the reciprocating screw 83 is threadedly connected to a screw block 84, the opposite side walls of the screw block 84 are both in contact with the inner wall of the transverse groove 6, the nozzle 7 is fixedly connected to the bottom of the screw block 84, and the rotating rod 103 is transmission-connected to the driving rod 82 via a bevel gear set 85.

[0027] In this embodiment, when motor 81 is in operation, it drives rotating rod 103 via bevel gear set 85, thereby driving the horizontal bar 5 and the nozzle 7. Simultaneously, motor 81 drives driving rod 82 and reciprocating screw 83, which in turn drives screw block 84 and nozzle 7 in horizontal reciprocating motion. Therefore, nozzle 7 rotates and reciprocates horizontally, ensuring that the reaction material sprayed from nozzle 7 is evenly and fully deposited on all locations on the catalyst fixed bed 2.

[0028] In a further preferred embodiment of the present invention, Figure 3 As shown, the circulation portion 9 includes a housing 91 that is rotatably mounted on the lower half of the outer circumference of the fixed cylinder 3. The inner wall of the fixed cylinder 3 is provided with a plurality of through holes 92 within the housing 91. A hose 93 is fixedly inserted through one side of the housing 91. The end of the hose 93 away from the housing 91 is connected to the nozzle 7. The bottom of the housing 91 is fixedly connected to the top of the horizontal bar 5.

[0029] In this embodiment, after the pump body 4 discharges the reaction material into the fixed cylinder 3, it enters the housing 91 through the through hole 92 and then enters the nozzle 7 through the hose 93. The hose 93 is able to bend and deform, and when the horizontal bar 5 rotates, the housing 91 rotates synchronously, so the hose 93 does not get entangled on the outer periphery of the housing 91.

[0030] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A fixed-bed reactor device for cyclodehydrogenation, comprising a housing (1) and a catalyst fixed bed (2) fixedly connected to the housing (1), characterized in that: A hollow fixed cylinder (3) is fixedly provided on the upper half of the shell (1), a pump body (4) is fixedly connected to the top of the shell (1), an output end of the pump body (4) is communicated with the fixed cylinder (3), a horizontal bar (5) is rotatably connected to the bottom end of the fixed cylinder (3), a horizontal groove (6) is provided at the bottom of the horizontal bar (5), a nozzle (7) is provided in the horizontal groove (6), an adjusting portion (8) is provided in the horizontal bar (5), a circulation portion (9) is provided between the nozzle (7) and the fixed cylinder (3), and a linkage portion (10) is provided between the fixed cylinder (3) and the horizontal bar (5).

2. A fixed-bed reactor device for cyclodehydrogenation according to claim 1, characterized in that: The linkage part (10) comprises a fixed gear (101) fixedly sleeved on the outer peripheral surface of the fixed cylinder (3); a top plate (102) is rotatably sleeved on the outer peripheral surface of the fixed cylinder (3) above the fixed gear (101); a rotating rod (103) is rotatably connected to the bottom surface of the top plate (102); a driven gear (104) is fixedly sleeved on the outer peripheral surface of the rotating rod (103); the driven gear (104) is meshed with the fixed gear (101); and the rotating rod (103) rotates through the horizontal bar (5).

3. A fixed-bed reactor device for cyclodehydrogenation according to claim 2, characterized in that: The regulating portion (8) comprises a motor (81) fixedly connected to the inner side wall of the transverse groove (6); the output end of the motor (81) is transmission-connected to a driving rod (82); the end of the driving rod (82) away from the motor (81) is fixedly connected to a reciprocating screw (83); the end of the reciprocating screw (83) away from the driving rod (82) is rotationally connected to the inner side wall of the transverse groove (6); the outer peripheral surface of the reciprocating screw (83) is threadedly connected to a screw block (84); the nozzle (7) is fixedly connected to the bottom of the screw block (84); and the rotating rod (103) is transmission-connected to the driving rod (82) via a bevel gear set (85).

4. A fixed-bed reactor device for cyclodehydrogenation according to claim 3, characterized in that: The circulation portion (9) comprises a shell (91) rotatably sleeved on the lower half of the outer circumference of the fixed cylinder (3); a plurality of through holes (92) are provided on the inner wall of the fixed cylinder (3) located inside the shell (91); a hose (93) is fixedly provided through one side of the shell (91); and the end of the hose (93) away from the shell (91) is connected to the nozzle (7).

5. A fixed-bed reactor device for cyclodehydrogenation according to claim 4, characterized in that: The bottom of the shell (91) is fixedly connected to the top of the horizontal bar (5).

6. A fixed-bed reactor device for cyclodehydrogenation according to claim 5, characterized in that: The opposite side walls of the screw block (84) are both in contact with the inner side walls of the transverse groove (6).

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