Isobutane / n-butane sulfur reduction device

Abstract

The utility model discloses an isobutane / n-butane sulfur reduction device which comprises a shell and is characterized in that an adsorption assembly is arranged in the shell, a discharge pipeline is connected to the top of the shell, a gas inlet assembly is arranged at the bottom in the shell, a gas inlet pipeline is connected to the top in the shell, and a gas outlet pipeline is arranged at the bottom in the shell. And the dispersing pipeline is connected to the lower end of the inlet pipeline, the sealing cover is arranged on the inner wall of the shell, the bottom of the sealing cover is rotationally connected with a rotating seat, a connecting frame is connected into the mounting groove in an inserted mode, and the connecting frame is fixedly connected with the mounting groove through a bolt. The adsorption assembly is arranged, the adsorption plate of a solid structure is arranged in the shell, rotation is kept through the transmission effect of the driving motor and the transmission gear, gas is made to make uniform contact with the adsorption plate in the upward flowing process, and the adsorption plate can be detached by opening the sealing cover. The use effect and the practicability are very good.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment for isobutane and normal butane, in particular to an isobutane / normal butane desulfurization device. Background Art

[0002] In the petrochemical industry, high-purity isobutane is an important chemical product. It is produced by cracking liquefied petroleum gas and then purified through multiple steps of physical separation. It is mainly used to produce isooctane through hydrocarbonization with isobutylene, as an improver for gasoline octane number, and can also be used as a refrigerant.

[0003] At present, in the prior art, in the production process of high-purity isobutane, the first step is usually to remove inorganic sulfur from the raw liquefied petroleum gas to remove hydrogen sulfide in the raw gas, followed by subsequent steps such as removal of light components and condensation separation. In the process of removing inorganic sulfur, zinc oxide desulfurizer is usually added to the desulfurization tank to remove hydrogen sulfide contained in the raw liquefied petroleum gas through the reaction formula of ZnO+H2S→ZnS+H2O.

[0004] In order to ensure the removal effect of hydrogen sulfide in the prior art, it is usually necessary to set up multiple large-volume desulfurization tanks in series, and then introduce the raw liquefied petroleum gas into each desulfurization tank in turn for corresponding multi-step inorganic sulfur removal operations. This desulfurization treatment method not only has technical defects such as large equipment footprint, complex operation process, and high later overhaul and maintenance costs due to the setting of multiple desulfurization tanks. Moreover, since the desulfurizer in each desulfurization tank is spread in a planar manner (that is, when the gas flows through, it only achieves a filtering contact with the desulfurizer once), the desulfurization capacity of each desulfurization tank is very limited, and multiple desulfurization tanks need to be connected in series at the same time to achieve a more satisfactory hydrogen sulfide removal effect.

[0005] At the same time, the zinc oxide desulfurizer used in this desulfurization operation has a certain service life. The desulfurizer in the desulfurization tank needs to be replaced after a period of use. However, the replacement of the zinc oxide desulfurizer in the existing desulfurization tank is cumbersome and requires shutdown for maintenance, which is time-consuming and labor-intensive, and also seriously affects production efficiency. Utility Model Content

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: the utility model provides an iso-butane / normal-butane desulfurization device, an iso-butane / normal-butane desulfurization device, comprising a shell, wherein an adsorption component is arranged in the shell;

[0007] a discharge pipe connected to the top of the housing;

[0008] An air intake assembly, the air intake assembly being arranged at the top of the housing;

[0009] The adsorption assembly includes a sealing cover, which is arranged on the inner wall of the shell. The bottom of the sealing cover is rotatably connected to a rotating seat. The bottom of the rotating seat is provided with a mounting groove. A connecting frame is inserted into the mounting groove and fixedly connected to the mounting groove by bolts.

[0010] As a further technical solution, a plurality of adsorption plates are fixedly connected to the outside of the connecting frame, a plurality of circular holes are opened at the bottom of the adsorption plates, a replacement port is opened on the side surface of the outer shell, a sealing cover is inserted into the replacement port, the sealing cover and the outer shell are fixedly connected by bolts, a driving motor is fixedly connected to the outer surface of the outer shell, the output end of the driving motor is located in the sealing cover, and transmission gears are provided at the output end of the driving motor and the upper end of the rotating seat.

[0011] As a further technical solution, the air intake assembly includes an air intake pipe, which is connected to the inner surface of the shell, the upper end of the air intake pipe is connected to a rotating air hood, and the side surface of the rotating air hood is connected to several dispersion air plates.

[0012] As a further technical solution, a plurality of the dispersed air plates are fixedly connected at an inclined angle and communicate with the interior of the rotating air hood.

[0013] As a further technical solution, the transmission gear adopts a bevel gear.

[0014] As a further technical solution, the adsorption plate is overall in a fan-shaped structure.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are that an adsorption component is provided in the utility model, and an adsorption plate with a solid structure is provided inside the outer shell, and is kept rotating by the transmission effect of the driving motor and the transmission gear, so that the gas can evenly contact the adsorption plate during the upward flow, and the cover can be opened to remove the adsorption plate, which has good use effect and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0017] Figure 1 A schematic diagram of the structure of an iso-butane / normal-butane desulfurization device provided in this embodiment;

[0018] Figure 2 A top view of an iso-butane / normal-butane desulfurization device provided in this embodiment;

[0019] As shown in the figure: 1. Shell; 2. Exhaust pipe; 3. Adsorption assembly; 3-1. Sealing cover; 3-2. Rotating seat; 3-3. Mounting slot; 3-4. Connecting frame; 3-5. Adsorption plate; 3-6. Round hole; 3-7. Replacement port; 3-8. Sealing cover; 3-9. Driving motor; 3-10. Transmission gear; 4. Air intake assembly; 4-1. Air intake pipe; 4-2. Rotating air cover; 4-3. Dispersing air plate. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Embodiment, attached by the specification Figure 1-2 It can be seen that the present scheme is an iso-butane / normal-butane desulfurization device, an iso-butane / normal-butane desulfurization device, comprising a housing 1, wherein an adsorption assembly 3 is arranged in the housing 1;

[0023] A discharge pipe 2, wherein the discharge pipe 2 is connected to the top of the housing 1;

[0024] An air intake assembly 4, wherein the air intake assembly 4 is arranged at the top of the housing 1;

[0025] The adsorption assembly 3 includes a sealing cover 3-1, which is arranged on the inner wall of the outer shell 1. A rotating seat 3-2 is rotatably connected to the bottom of the sealing cover 3-1. A mounting groove 3-3 is provided at the bottom of the rotating seat 3-2. A connecting frame 3-4 is inserted and connected in the mounting groove 3-3. The connecting frame 3-4 and the mounting groove 3-3 are fixedly connected by bolts. A plurality of adsorption plates are fixedly connected to the outside of the connecting frame 3-4. A plurality of circular holes 3-6 are provided at the bottom of the adsorption plates. A replacement port 3-7 is provided on the side surface of the outer shell 1. A sealing cover 3-8 is inserted and connected in the replacement port 3-7. The sealing cover 3-8 and the outer shell 1 are fixedly connected by bolts. A driving motor 3-9 is fixedly connected to the outer surface of the outer shell 1. The output end of the driving motor 3-9 is located in the sealing cover 3-1. A transmission gear 3-10 is provided at the output end of the driving motor 3-9 and the upper end of the rotating seat 3-2.

[0026] The air intake assembly 4 includes an air intake pipe 4-1, which is connected to the inner surface of the shell 1. The upper end of the air intake pipe 4-1 is connected to a rotating air hood 4-2, and the side surface of the rotating air hood 4-2 is connected to a plurality of dispersion air plates 4-3.

[0027] From the above content, it can be known that: several of the dispersed air plates 4-3 are fixedly connected at an inclined angle and are connected to the inside of the rotating air hood. Through the inclined angle connection, when gas enters, the dispersed air plates 4-3 are pushed by the airflow to make the rotating air hood 4-2 rotate horizontally.

[0028] From the above content, it can be known that the transmission gear 3-10 adopts a bevel gear, and through the 90° transmission structure of the bevel gear, the drive motor 3-9 and the rotating seat 3-2 are horizontally transmitted at right angles.

[0029] From the above content, it can be known that the adsorption plate has a fan-shaped structure as a whole. Through the fan-shaped structure, the adsorption contact surface in contact with the gas is larger and will not affect the downward flow of the gas.

[0030] Among them, it is important to point out that in the specific implementation process, the gas enters the air inlet pipe 4-1 and flows to the rotating air hood 4-2 and the dispersion air plate 4-3. The rotating air hood 4-2 is pushed to rotate by the gas reverse force, so that the gas flows upward evenly through the dispersion air plate 4-3. At the same time, the drive motor 3-9 is started, and the rotating seat 3-2 is driven to rotate through the transmission gear 3-10, so that the adsorption plate on the connecting frame 3-4 keeps rotating. The gas is adsorbed by the adsorption plate during the upward flow process, and the treated gas can be discharged at the top through the exhaust pipe 2.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An iso-butane / normal-butane desulfurization device, comprising a housing (1), characterized in that: An adsorption component (3) is arranged in the housing (1); A discharge pipe (2), the discharge pipe (2) being connected to the top of the housing (1); An air intake assembly (4), the air intake assembly (4) being arranged at the top of the housing (1); The adsorption assembly (3) comprises a sealing cover (3-1), the sealing cover (3-1) being arranged on the inner wall of the outer shell (1), the bottom of the sealing cover (3-1) being rotatably connected to a rotating seat (3-2), the bottom of the rotating seat (3-2) being provided with a mounting groove (3-3), a connecting frame (3-4) being inserted and connected in the mounting groove (3-3), and the connecting frame (3-4) and the mounting groove (3-3) being fixedly connected by bolts.

2. The iso-butane / normal-butane desulfurization device according to claim 1, characterized in that: The connecting frame (3-4) is fixedly connected to a plurality of adsorption plates (3-5) on the outside, and a plurality of circular holes (3-6) are provided at the bottom of the adsorption plates (3-5). The side surface of the housing (1) is provided with a replacement port (3-7), and a sealing cover (3-8) is inserted and connected in the replacement port (3-7). The sealing cover (3-8) is fixedly connected to the housing (1) by bolts. The outer surface of the housing (1) is fixedly connected to a driving motor (3-9), and the output end of the driving motor (3-9) is located in the sealing cover (3-1). The output end of the driving motor (3-9) and the upper end of the rotating seat (3-2) are both provided with a transmission gear (3-10).

3. The iso-butane / normal-butane desulfurization device according to claim 1, characterized in that: The air intake assembly (4) comprises an air intake pipe (4-1), the air intake pipe (4-1) being connected to the inner surface of the outer shell (1), the upper end of the air intake pipe (4-1) being connected to a rotating air hood (4-2), and the side surface of the rotating air hood (4-2) being connected to a plurality of dispersion air plates (4-3).

4. The iso-butane / normal-butane desulfurization device according to claim 3, characterized in that: A plurality of the dispersed air plates (4-3) are fixedly connected at an inclined angle and are communicated with the interior of the rotating air hood.

5. The iso-butane / normal-butane desulfurization device according to claim 2, characterized in that: The transmission gear (3-10) adopts a bevel gear.

6. The iso-butane / normal-butane desulfurization device according to claim 2, characterized in that: The adsorption plate (3-5) is in a fan-shaped structure as a whole.

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