A fixed bed reactor

Abstract

The utility model provides a fixed bed reactor, including reactor body, the top of reactor body is rotatively connected with T -shaped tube, the outside surface of T -shaped tube bottom end is connected with a group of equidistance arrangement's discharge gate, the outside of T -shaped tube is provided with rotating mechanism, the below of T -shaped tube is provided with buffer dispersion subassembly, buffer dispersion subassembly includes a group of hanging frame fixedly connected with T -shaped tube outside surface. Through setting buffer dispersion subassembly, can buffer the liquid column formed to the raw material of joining, can cut down liquid column impact force, effectively reduce impact intensity, can let liquid column along the smooth taper surface of conical circular plate dispersion come along, and let it from conical circular plate edge place present umbrella -shaped even downward flow, avoided the concentrated impact force to the impact of reactor body inside fixed bed layer, prevents bed layer to appear catalyst particle displacement, accumulation etc. problem, maintains the stability of fixed bed layer, ensures the material and catalyst full contact in reaction process.

Description

Technical Field

[0001] This utility model relates to the field of reactor technology, and in particular to a fixed-bed reactor. Background Technology

[0002] A fixed-bed reactor is a chemical equipment that is filled with solid catalysts or reactants, through which fluids react. It is mainly used in catalytic cracking and hydrorefining in the petrochemical industry, ore roasting and coal gasification in the metallurgical industry, as well as in the pharmaceutical and environmental protection industries. By providing a stable reaction environment for chemical reactions, it enables effective control of the reaction process and thus produces products that meet the needs of different industries.

[0003] Application No. 202421361929.2 discloses a uniform temperature fixed-bed reactor, belonging to the field of reactor technology. This uniform temperature fixed-bed reactor includes a reactor body and an adjustment structure. The reactor body includes a first reaction chamber, a second reaction chamber, a feeding assembly, a fixed bed, an electric heating bend, and a heating assembly. The first reaction chamber is connected to the second reaction chamber, and the feeding assembly communicates with the first reaction chamber. The fixed bed is disposed within the second reaction chamber, and the electric heating bend is installed within the fixed bed. The heating assembly is disposed around the outer ring of the second reaction chamber. The adjustment structure includes a servo motor, a ball screw pair, a screw-nut pair, a hose, a branch pipe, and a liquid outlet pipe. The servo motor is installed on one side of the first reaction chamber. In this application, the uniform temperature fixed-bed reactor facilitates uniform feeding while reducing the impact generated during feeding, thus improving reaction quality.

[0004] The above-mentioned solution has shortcomings in use. When the raw material is discharged from the outlet pipe, it will form a continuous liquid column flowing downward due to gravity. The flowing liquid column with large kinetic energy will directly impact the fixed bed at a high speed. This strong impact force will destroy the stable structure of the fixed bed, causing local collapse or loosening of the bed, which will affect the effective contact between the raw material and the catalyst and reduce the reaction efficiency. Therefore, we provide a fixed bed reactor. Utility Model Content

[0005] This invention provides a fixed-bed reactor to solve the technical problems existing in the background art.

[0006] The purpose and effect of this utility model of a fixed bed reactor are achieved by the following specific technical means: a fixed bed reactor includes a reactor body, a T-shaped tube is rotatably connected to the top of the reactor body, a set of equidistant discharge ports are connected to the outer surface of the bottom end of the T-shaped tube, a rotating mechanism is provided outside the T-shaped tube, and a buffer dispersion assembly is provided below the T-shaped tube, the buffer dispersion assembly includes a set of hanging frames fixedly connected to the outer surface of the T-shaped tube;

[0007] The buffer dispersion assembly also includes a buffer structure disposed on each lifting frame to reduce the impact force on the discharged material. The buffer structure includes a slide rod slidably connected to each lifting frame, a conical circular plate fixedly connected to the top of each slide rod, and a spring sleeved on the outer surface of each slide rod.

[0008] Preferably, the top end of the T-shaped tube is rotatably connected to a hopper, and the top of the hopper is provided with a sealed cover.

[0009] Preferably, a set of annularly arranged top plates are fixedly connected to the bottom surface of the hopper, and the bottom end of each top plate is connected to the upper surface of the reactor body.

[0010] Preferably, the rotating mechanism includes a motor mounted on the upper surface of the reactor body, a gear mounted on the output end of the motor, a gear ring meshing with the outside of the gear, and the inner ring of the gear ring being connected to the outer surface of the T-shaped tube.

[0011] Preferably, a set of L-shaped hanging plates is fixedly connected to the outer surface of the bottom end of the T-shaped tube, and an annular frame is slidably connected to the outer surface of the top end of the set of L-shaped hanging plates. The upper surface of the annular frame is connected to the inner top wall of the reactor body.

[0012] Preferably, a limiting plate is fixedly connected to the bottom end of each slide bar.

[0013] Preferably, each of the conical circular plates has a ring of stabilizing rods fixedly connected to its bottom surface, the bottom end of each stabilizing rod extending to the bottom of the hanging frame, and the stabilizing rod and the hanging frame are slidably connected.

[0014] Beneficial effects:

[0015] 1. The buffer dispersion component can buffer the liquid column formed by the added raw materials, reduce the impact force of the liquid column, effectively reduce the impact intensity, and allow the liquid column to be dispersed along the smooth conical surface of the conical plate, and to flow down evenly in an umbrella shape from the edge of the conical plate. This avoids the impact of concentrated impact force on the fixed bed inside the reactor body, prevents problems such as catalyst particle displacement and accumulation in the bed, maintains the stability of the fixed bed, and ensures that the materials and catalyst are in full contact during the reaction.

[0016] 2. The rotating mechanism allows the T-shaped tube and the discharge port to rotate, thereby conveying the material evenly to the surface of the fixed bed and avoiding local material accumulation or uneven distribution. The L-shaped hanging plate and the ring frame work together to suspend the T-shaped tube, thus ensuring its stability during rotation. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the T-shaped tube of this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the L-shaped hanging plate of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the buffer dispersion component of this utility model.

[0021] Figure 1-4 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Reactor body; 2. T-shaped tube; 3. Hopper; 4. Discharge port; 5. Buffer and dispersion assembly; 501. Hanging frame; 502. Sliding rod; 503. Conical plate; 504. Spring; 505. Limiting plate; 506. Stabilizing rod; 6. Motor; 7. Gear; 8. Gear ring; 9. L-shaped hanging plate; 10. Annular frame; 11. Top plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] As attached Figure 1 Appendix Figure 2 With appendix Figure 3 As shown: A fixed-bed reactor includes a reactor body 1. A T-shaped tube 2 is rotatably connected to the top of the reactor body 1. The outer surface of the bottom end of the T-shaped tube 2 is connected to a set of equidistantly arranged discharge ports 4. Raw materials can be discharged from the discharge ports 4 through the T-shaped tube 2. A hopper 3 is rotatably connected to the top end of the T-shaped tube 2, and a sealed cover is provided on the top of the hopper 3. The hopper 3 can be used to hold materials, so that raw materials can be continuously added into the T-shaped tube 2. At the same time, the sealed cover can cover the hopper 3 to prevent foreign objects from falling into the material. A set of annularly arranged top plates 11 are fixedly connected to the bottom surface of the hopper 3. The bottom end of each top plate 11 is connected to the upper surface of the reactor body 1. The top plates 11 can support the hopper 3 and keep it in a stable state.

[0025] As attached Figure 2 With appendix Figure 3As shown: A rotating mechanism is provided on the outside of the T-shaped tube 2. The rotating mechanism includes a motor 6 installed on the upper surface of the reactor body 1. A gear 7 is installed at the output end of the motor 6. A toothed ring 8 meshes with the outside of the gear 7. The inner ring of the toothed ring 8 is connected to the outer surface of the T-shaped tube 2. The operation of the motor 6 can drive the gear 7 to rotate. At the same time, the toothed ring 8 will rotate and drive the T-shaped tube 2 to rotate, so that the material can be evenly transported to the surface of the fixed bed, avoiding the phenomenon of local material accumulation or uneven distribution. A set of L-shaped hanging plates 9 are fixedly connected to the outer surface of the bottom end of the T-shaped tube 2. The outer surface of the top of the set of L-shaped hanging plates 9 are slidably connected to an annular frame 10. The upper surface of the annular frame 10 is connected to the inner top wall of the reactor body 1. By using the cooperation of the L-shaped hanging plates 9 and the annular frame 10, the bottom end of the T-shaped tube 2 can be suspended, thereby ensuring the stability of the T-shaped tube 2 when rotating.

[0026] As attached Figure 2 With appendix Figure 4 As shown: A buffer dispersion assembly 5 is provided below the T-shaped tube 2. The buffer dispersion assembly 5 includes a set of hangers 501 fixedly connected to the outer surface of the T-shaped tube 2. The buffer dispersion assembly 5 also includes a buffer structure provided on each hanger 501 to reduce the impact force on the discharged material. The buffer structure includes a slide rod 502 slidably connected to each hanger 501. A conical plate 503 is fixedly connected to the top of each slide rod 502. The conical plate 503 effectively shields and buffers the flowing liquid column, allowing the liquid column to disperse along its smooth conical surface under the obstruction of the conical plate 503, and flow downwards in an umbrella-like shape from the edge of the conical plate 503. This design avoids concentrated impact forces on the fixed bed inside the reactor body 1, preventing problems such as catalyst particle displacement and accumulation, maintaining the stability of the fixed bed, and ensuring full contact between the material and the catalyst during the reaction. Each slide rod 502 is fitted with a spring 504 on its outer surface, and a limit plate 505 is fixedly connected to the bottom of each slide rod 502. When the conical plate 503 blocks and buffers the liquid column, its impact force will act directly on the conical plate 503. At this time, the conical plate 503 will move axially and compress the spring 504, converting the impact force into the elastic potential energy of the spring 504, which can reduce the impact force of the liquid column and effectively reduce the impact intensity.

[0027] As attached Figure 4 As shown: Each conical plate 503 has a ring of stabilizing rods 506 fixedly connected to its bottom surface. The bottom end of each stabilizing rod 506 extends to the bottom of the hanging frame 501, and the stabilizing rod 506 is slidably connected to the hanging frame 501. The stabilizing rods 506 can stabilize the edge of the conical plate 503, so that the conical plate 503 can remain stable.

[0028] Working principle: When the material is discharged from the outlet 4 at the bottom of the T-shaped tube 2, the conical plate 503 effectively shields and buffers the flowing liquid column. Since the liquid column formed when the material is discharged has a large kinetic energy, its impact force will directly act on the conical plate 503. At this time, the conical plate 503 will move along the axial direction and compress the spring 504, converting the impact force into the elastic potential energy of the spring 504, which can reduce the impact force of the liquid column and effectively reduce the impact intensity. At the same time, under the obstruction of the conical plate 503, the liquid column will be dispersed along its smooth conical surface and flow downward in an umbrella shape from the edge of the conical plate 503. This avoids the impact of concentrated impact force on the fixed bed inside the reactor body 1, prevents problems such as catalyst particle displacement and accumulation in the bed, maintains the stability of the fixed bed, and ensures that the material and catalyst are in full contact during the reaction process.

[0029] In addition, the operator can synchronously control the motor 6 to work. The output shaft of the motor 6 drives the gear 7 to rotate. The gear 7 meshes with the gear ring 8, thereby driving the gear ring 8 to rotate. Since the T-shaped tube 2 is fixedly connected to the gear ring 8, the T-shaped tube 2 will also perform circumferential motion. During the rotation, the T-shaped tube 2 will evenly convey the material to the surface of the fixed bed, avoiding the phenomenon of local material accumulation or uneven distribution.

Claims

1. A fixed-bed reactor, comprising a reactor body (1), characterized in that: The top of the reactor body (1) is rotatably connected to a T-shaped tube (2), and the outer surface of the bottom end of the T-shaped tube (2) is connected to a set of equally spaced discharge ports (4). A rotating mechanism is provided on the outside of the T-shaped tube (2), and a buffer dispersion assembly (5) is provided below the T-shaped tube (2). The buffer dispersion assembly (5) includes a set of hanging frames (501) fixedly connected to the outer surface of the T-shaped tube (2). The buffer dispersion assembly (5) further includes a buffer structure disposed on each lifting frame (501) for reducing the impact force on the discharged material. The buffer structure includes a slide rod (502) slidably connected to each lifting frame (501). A conical circular plate (503) is fixedly connected to the top of each slide rod (502). A spring (504) is sleeved on the outer surface of each slide rod (502).

2. The fixed-bed reactor according to claim 1, characterized in that: The top end of the T-shaped tube (2) is rotatably connected to a hopper (3), and the top of the hopper (3) is provided with a sealed cover.

3. The fixed-bed reactor according to claim 2, characterized in that: The bottom surface of the hopper (3) is fixedly connected to a set of annularly arranged top plates (11), and the bottom end of each top plate (11) is connected to the upper surface of the reactor body (1).

4. The fixed-bed reactor according to claim 1, characterized in that: The rotating mechanism includes a motor (6) mounted on the upper surface of the reactor body (1), a gear (7) is mounted on the output end of the motor (6), a gear ring (8) meshes with the outside of the gear (7), and the inner ring of the gear ring (8) is connected to the outer surface of the T-shaped tube (2).

5. The fixed-bed reactor according to claim 1, characterized in that: A set of L-shaped hanging plates (9) are fixedly connected to the outer surface of the bottom end of the T-shaped tube (2). The outer surface of the top end of the set of L-shaped hanging plates (9) is slidably connected to an annular frame (10). The upper surface of the annular frame (10) is connected to the inner top wall of the reactor body (1).

6. The fixed-bed reactor according to claim 1, characterized in that: Each of the slide bars (502) is fixedly connected to a limiting plate (505) at its bottom end.

7. The fixed-bed reactor according to claim 1, characterized in that: Each of the conical circular plates (503) has a ring of stabilizing rods (506) fixedly connected to its bottom surface. The bottom end of each stabilizing rod (506) extends to the bottom of the hanging frame (501), and the stabilizing rod (506) is slidably connected to the hanging frame (501).

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