Fuel desulfurization unit

Abstract

A fuel desulfurization device is provided that includes a single-stage desulfurization chamber and a two-stage desulfurization chamber. [Solution] A shaft sleeve 3 is installed inside the first-stage desulfurization chamber 1, and an agitator shaft 4 is installed inside the second-stage desulfurization chamber 2. The shaft sleeve is slidably fitted onto the outside of the agitator shaft, a first agitator rod 31 is installed on the shaft sleeve, and a second agitator rod is installed on the agitator shaft, and the bottom of the shaft sleeve has a number of notches 32 extending upward. This device uses two desulfurization chambers, upper and lower, to perform oxidation and adsorption on sulfur-containing fuel oil, achieving double desulfurization operation and enabling rapid switching between working mode and cleaning mode, improving cleaning efficiency.

Description

[Technical Field]

[0001] The present invention relates to the technical field of fuel desulfurization, and more particularly to a fuel desulfurization device. [Background technology]

[0002] Crude oil contains sulfur, which generates harmful gases such as sulfur dioxide after combustion, causing environmental damage. Due to environmental concerns, regulations on sulfur-containing fuels are gradually being tightened. Therefore, fuel oil desulfurization technology is the focus of current research. Fuel oil oxidative desulfurization is a relatively common method at present, but a single oxidative desulfurization method In many cases, desulfurization of the sulfur dioxide is not thorough enough, resulting in low efficiency of oxidative desulfurization. Therefore, it is usually combined with other methods or a large amount of catalyst is added to perform multiple decomposition. In the current desulfurization equipment, when multiple desulfurization is performed, it is usually necessary to perform multiple desulfurizations consecutively. Desulfurization is not possible, or cleaning during maintenance is inconvenient and continuous cleaning is not possible. Cleaning alone takes time and effort. Summary of the Invention

[0003] The present invention provides a fuel desulfurization device, comprising a first-stage desulfurization chamber and a second desulfurization chamber located below the first-stage desulfurization chamber. a first-stage desulfurization chamber, a shaft sleeve provided inside the first-stage desulfurization chamber, and a second-stage desulfurization chamber An agitator shaft is provided inside the first-stage desulfurization chamber, and the upper part of the agitator shaft penetrates the first-stage desulfurization chamber and is positioned at the top of the first-stage desulfurization chamber. The shaft sleeve is slidably mounted on the outside of the agitator shaft. Possibly fitted, A first stirring rod is provided on the shaft sleeve, and a second stirring rod is provided on the stirring shaft. a plurality of notches at the bottom of the shaft sleeve for the second stirring rod to pass through; An engagement groove is provided on the upper part of the shaft sleeve, and the stirring An engagement block is provided on the upper portion of the shaft and is docked with the engagement groove, A sliding groove is provided on each side of the top of the two-stage desulfurization chamber along the horizontal direction, A baffle is slidably connected to the inside of the two-stage desulfurization chamber, and both of the two baffles are located inside the two-stage desulfurization chamber. It can move towards the bottom and support the bottom of the shaft sleeve after docking. Cut. In one aspect of the present invention, a liquid inlet is provided at the top of the first-stage desulfurization chamber, and a guide port is provided at the bottom. A valve is provided at the guide port. Description: Fuel oil is added through the liquid inlet and discharged through the guide port. In one aspect of the present invention, a liquid discharge pipe is provided at the bottom of the two-stage desulfurization chamber, and A heater is provided in the section. Description: The heater provides the heat required for the activated carbon plate regeneration process. In one aspect of the present invention, an annular activated carbon plate is provided at the end of the second stirring rod. Description: Activated carbon plates are used to adsorb sulfides in fuel. This device uses two upper and lower desulfurization chambers to decompose sulfur-containing fuel oil (gasoline, diesel, etc.) It performs desulfurization and adsorption, realizing double desulfurization operation, and also mutual cooperation between the shaft sleeve and the agitator shaft. This allows for quick switching between working and cleaning modes, improving cleaning efficiency and reducing fuel consumption. Other contaminants in fuel oil adhere to the desulfurization chamber walls, stirring rod and stirring shaft for a long period of time, causing desulfurization. This prevents the deterioration of effectiveness and improves the overall service life and maintenance convenience of the device. , and work efficiency can also be improved. [Brief explanation of the drawings]

[0004] [Figure 1]1 is a schematic diagram of the overall structure of the present invention; [Figure 2] 1 is a schematic diagram of the internal structure of the present invention; [Figure 3] 1 is a structural diagram of the inner shaft sleeve and stirring shaft of the present invention; [Figure 4] FIG. 2 is a top view of the internal structure of the present invention.

[0005] [Explanation of symbols] 1 Single-stage desulfurization chamber 11 Liquid inlet 12 Information Exit 2 Two-stage desulfurization chamber 21 sliding groove 22 Liquid drain pipe 23 Heater 3 Shaft sleeve 31 First stirring rod 32 Notch 33 Engagement groove 4 Stirring shaft 41 Second stirring rod 42 Engagement block 5 Drive motor 6 Movable baffle 7 Activated carbon plate DETAILED DESCRIPTION OF THE INVENTION

[0006] Example 1: As shown in Figs. 1 and 2, the fuel desulfurization apparatus includes a first-stage desulfurization chamber 1 and a first-stage desulfurization chamber 2. The first-stage desulfurization chamber 1 is provided with a two-stage desulfurization chamber 2 located below the first-stage desulfurization chamber 1, and a shaft sleeve 3 is provided inside the first-stage desulfurization chamber 1. The first-stage desulfurization chamber 1 is provided with an agitator shaft 4 inside the second-stage desulfurization chamber 2, and the upper part of the agitator shaft 4 is provided with an agitator shaft 4 inside the first-stage desulfurization chamber 1. The shaft is rotated by a drive motor 5 located at the top of the first-stage desulfurization chamber 1. The sleeve 3 is slidably fitted onto the outside of the stirring shaft 4, As shown in FIGS. 2 and 3, a first stirring rod 31 is provided on the shaft sleeve 3, The first stirring rods 31 are provided in a total of two sets at equal intervals along the circumferential direction of the shaft sleeve 3, A total of three sets of each are provided at equal intervals from bottom to top, and a second stirring rod 41 is provided on the stirring shaft 4. The second stirring rods 41 are provided in two sets at equal intervals in the circumferential direction along the stirring shaft 4, and each set is A total of three stirring rods are provided at equal intervals from bottom to top, and a second stirring rod 41 is attached to the bottom of the shaft sleeve 3. Two notches 32 are provided extending upward for the shaft sleeve 3 to pass through. An engagement groove 33 is provided in the portion, and an engagement block docked with the engagement groove 33 is provided on the upper portion of the stirring shaft 4. Q42 was established, As shown in FIGS. 3 and 4, a liquid inlet 11 is provided on one side of the top of the first-stage desulfurization chamber 1, and a A guide port 12 is provided in the portion, and a valve is provided on the guide port 12. The valve is a commercially available waterproof and dirt-proof valve. The solenoid valve is provided with a liquid discharge pipe 22 on one side of the bottom of the second-stage desulfurization chamber 2. A heater 23 is provided at the inner bottom, and the heater 23 is a commercially available industrial heater for waterproofing and antifouling. As shown in FIG. 1, slide grooves 21 are formed on both sides of the top of the two-stage desulfurization chamber 2 along the horizontal direction. The baffle 6 is slidably connected inside the slide groove 21, and the two baffles are moved by an external force. After all the full six move towards the inside of the two-stage desulfurization chamber 2 and are docked, The bottom of the sleeve 3 can be supported. Example 2: differs from Example 1 in the following respects: A ring-shaped activated carbon plate 7 is provided at the end of the second stirring rod 41. The activated carbon plate 7 is a commercially available activated carbon plate. This is the structure after adjusting the structural outer shape of the carbon material product. Example 3: differs from Example 1 in the following respects: The first stirring rods 31 are provided in a total of three sets at equal intervals along the circumferential direction of the shaft sleeve 3. A total of four sets of the second stirring rods 41 are provided at equal intervals from bottom to top, and the second stirring rods 41 are arranged in the circumferential direction of the stirring shaft 4. Two sets are provided at equal intervals along the shaft, and each set is provided at equal intervals from bottom to top, for a total of four sets. The bottom of the stirring sleeve 3 has two notches 32 extending upward for the second stirring rod 41 to pass through. It is provided by extending it. Example 4: differs from Example 1 in the following respects: The first stirring rods 31 are provided in a total of two sets at equal intervals along the circumferential direction of the shaft sleeve 3, A total of six pairs of the second stirring rods 41 are provided at equal intervals from bottom to top, and the second stirring rods 41 are arranged in the circumferential direction of the stirring shaft 4. A total of three sets are provided at equal intervals along the shaft, and each set is provided with a total of six sets at equal intervals from bottom to top. The bottom of the stirring sleeve 3 has three notches 32 extending upward for the second stirring rod 41 to pass through. It is provided by extending it. The working principle of this invention is briefly explained below: When in use, the fuel oil to be treated is injected into the first-stage desulfurization chamber 1 through the liquid inlet 11; At this time, both of the two movable baffles 6 move toward the inside of the two-stage desulfurization chamber. After the shaft sleeve 3 is docked, the engagement block 42 is docked with the engagement groove 33. This ensures that the shaft sleeve 3 and the stirring shaft 4 rotate synchronously, and then the drive motor 5 is started. The stirring shaft 4 is rotated, and while the first stirring rod 3 is rotating, the inside of the first-stage desulfurization chamber 1 is heated. The material is stirred to promote mixing, and H2O is introduced into the first-stage desulfurization chamber 1 through the liquid inlet 11. 2 or heteropolyacid may be added. Heteropolyacid is rich in phosphotungstic acid. It contains sulfur dioxide, which is desulfurized by oxidation reaction. After the oxidative desulfurization, the valve on the guide port 12 is opened, and the fuel oil is injected into the two-stage desulfurization chamber 2. The adsorption desulfurization continues with the carbon plate 7, which can rotate synchronously with the agitator shaft 4. The adsorption effect is improved, and at the same time, the next batch of sulfur dioxide to be treated is stored in the first-stage desulfurization chamber 1. Fuel oil is poured in, After the adsorption desulfurization, the liquid discharge pipe 22 is opened, and the fuel oil that has completed the multiple desulfurization is discharged and collected. After completing the multiple desulfurization of a batch of fuel oil, one cleaning will be started, and the main object of cleaning is the first stirring Since the stirring rod 31 and the second stirring rod 41 are arranged in the same space, It can improve the cleaning efficiency, and at the same time, a certain amount of heat is required for desorption of the activated carbon plate 7. This also promotes the cleaning effect, so the two movable baffles 6 are arranged via the sliding grooves 21. At this time, the movable baffle 6 no longer supports the shaft sleeve 3, and the shaft sleeve Reeve 3 slides downward under the action of gravity or is artificially lowered by an external tow rope. Since the fixed position of the engagement block 42 corresponds to the position of the notch 32, it naturally slides downward. After moving, each second stirring rod 41 enters the notch 32, and similarly, the shaft sleeve 3 and The synchronous rotation of the stirring shaft 4 is ensured, and then the heater 23 is operated to supply water to the inside of the two-stage desulfurization chamber 2. The drive motor 5 is started to stir and wash the wastewater, and the wastewater after washing is discharged into the liquid discharge pipe 2. Discharged through 2, After cleaning is completed, the shaft sleeve 3 is manually raised to its original position using an external towing rope. The two movable baffles 6 are then docked again and the vessel is recovered, and the next fuel oil desulfurization can be started.

Claims

1. The desulfurization furnace comprises a first-stage desulfurization chamber (1) and a second-stage desulfurization chamber (2) located below the first-stage desulfurization chamber (1). A shaft sleeve (3) is provided inside the first-stage desulfurization chamber (1), and the second-stage desulfurization chamber ( An agitator shaft (4) is provided inside the first-stage desulfurization chamber (2), and the upper part of the agitator shaft (4) passes through the first-stage desulfurization chamber (1). The shaft is rotated by a drive motor (5) located at the top of the first-stage desulfurization chamber (1) and The soft sleeve (3) is slidably fitted onto the outside of the stirring shaft (4), A first stirring rod (31) is provided on the shaft sleeve (3), and the stirring shaft (4) A second stirring rod (41) is provided on the top, and a plurality of notches are provided at the bottom of the shaft sleeve (3). (32) is provided extending upward, and an engagement groove (33) is provided at the top of the shaft sleeve (3). ) is provided on the upper part of the stirring shaft (4), and an engagement block docked with the engagement groove (33) is provided on the upper part of the stirring shaft (4). A lock (42) is provided, The two-stage desulfurization chamber (2) has sliding grooves (21) formed on both sides of the top thereof along the horizontal direction. and a baffle (6) is slidably connected to the inside of the sliding groove (21). Fuel desulfurization equipment.

2. The first-stage desulfurization chamber (1) has a liquid inlet (11) at the top and a guide port (12) at the bottom.

2. The method according to claim 1, wherein the guide opening (12) is provided with a valve. Equipment.

3. A liquid discharge pipe (22) is provided at the bottom of the two-stage desulfurization chamber (2), and 2. The device according to claim 1, characterized in that a heater (23) is provided.

4. The second stirring rod (41) is provided at its end with an annular activated carbon plate (7).

2. The device of claim 1 , wherein:

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