Expanded graphite desulfurization device and desulfurization method thereof

Abstract

An expanded graphite desulfurization device and its desulfurization method belong to the field of graphite desulfurization equipment. It includes a shell and a conveying device; the conveying device includes a cylinder and a power unit; the power unit is fixedly connected to the top of the shell; the power unit is fixedly connected to the cylinder, and a spiral plate is provided between the cylinder and the shell. The shell includes an outer cylinder I, a top plate, a connecting rod, a feed hopper, an outer cylinder II, and an annular plate; the top of the outer cylinder I is fixedly connected to the top plate, and the bottom of the outer cylinder I is fixedly connected to the outer cylinder II via a connecting rod; an annular plate is fixedly connected to the inner wall of the outer cylinder II; the annular plate has multiple drainage holes; the top plate has a feed inlet; and a conical feed hopper is fixedly connected to the outer top of the outer cylinder II. This invention automatically adds graphite for desulfurization during use, saving time spent on downtime to change raw materials, and the graphite reactants and deionized water can be discharged separately, achieving continuous desulfurization and saving time.

Description

Technical Field

[0001] This invention relates to an expanded graphite desulfurization device and its desulfurization method, belonging to the field of graphite desulfurization equipment. Background Technology

[0002] Graphite is a crystalline carbon material with a unique structure. Flexible graphite (also known as expanded graphite), made from natural graphite, has a porous structure and is an excellent adsorbent material. In addition, due to its high temperature resistance, corrosion resistance, and radiation resistance, it can be used as a sealing material in industries such as chemical, environmental protection, metallurgy, and nuclear power. Furthermore, flexible graphite can be processed into graphene, which has even better performance.

[0003] Sulfur in graphite materials can corrode the metals they come into contact with, so desulfurization treatment of graphite is particularly important in the production process.

[0004] Currently, the most common graphite desulfurization devices on the market require the addition of raw materials, and after the reaction is complete, the raw materials must be replaced before the desulfurization operation can be carried out again. This operation is quite cumbersome, so it is necessary to improve it. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems existing in the background art and to provide an expanded graphite desulfurization device and its desulfurization method.

[0006] The present invention achieves the above objectives by adopting the following technical solution:

[0007] An expanded graphite desulfurization device includes an outer shell and a conveying device; the conveying device includes a cylinder and a power unit; the power unit is fixedly connected to the top of the outer shell; the power unit is fixedly connected to the cylinder, and a spiral plate is provided between the cylinder and the outer shell.

[0008] A desulfurization method for an expanded graphite desulfurization device, the desulfurization method comprising the following steps:

[0009] Step 1: Introduce deionized water into the outer cylinder I through the feed inlet and start the motor;

[0010] Step 2: Add graphite reactants into the feed tank. The graphite reactants move upward under the drive of the spiral plate, come into full contact with the deionized water flowing downward under gravity, and react fully after being heated by the resistance wire.

[0011] Step 3: The graphite reactant that moves upwards after the reaction enters the limiting cylinder through the perforation and is located between two adjacent partition plates. It slides on the sieve plate and drains off some of the liquid.

[0012] Step 5: The graphite reactants on the sieve plate move through the discharge port to the top of the inclined plate, are dried, and then discharged.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the present invention automatically adds graphite for desulfurization treatment during use, saving the time of downtime to replace raw materials, and the graphite reactants and deionized water can be discharged separately, realizing continuous desulfurization treatment and saving time. Attached Figure Description

[0014] Figure 1 This is a front view of an expanded graphite desulfurization device according to the present invention;

[0015] Figure 2 This is a front view of the outer casing of an expanded graphite desulfurization device according to the present invention;

[0016] Figure 3 This is a front view of the conveying device of an expanded graphite desulfurization device according to the present invention;

[0017] Figure 4 This is a front view of the cylinder of an expanded graphite desulfurization device according to the present invention;

[0018] Figure 5 This is a front view of the transmission device of an expanded graphite desulfurization device according to the present invention;

[0019] Figure 6 This is a schematic diagram showing the position of the chute in an expanded graphite desulfurization device according to the present invention;

[0020] Figure 7 This is a front view of the power unit of an expanded graphite desulfurization device according to the present invention;

[0021] Figure 8 This is a top view of the power unit of an expanded graphite desulfurization device according to the present invention;

[0022] Figure 9 This is a schematic diagram of the structure of the limiting cylinder of an expanded graphite desulfurization device according to the present invention. Detailed Implementation

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

[0024] Specific implementation method one: as follows Figure 1-9 As shown, this embodiment describes an expanded graphite desulfurization device, including a shell 1 and a conveying device 2; the conveying device 2 includes a cylinder 21 and a power device 26; the top of the shell 1 is fixedly connected to the power device 26; the power device 26 is fixedly connected to the cylinder 21, and a spiral plate 212 is provided between the cylinder 21 and the shell 1.

[0025] The outer casing 1 includes an outer cylinder I 11, a top plate 12, a connecting rod 14, a feed hopper 15, an outer cylinder II 16, and an annular plate 17. The top plate 12 is fixedly connected to the top end of the outer cylinder I 11, and the outer cylinder II 16 is fixedly connected to the bottom end of the outer cylinder I 11 via the connecting rod 14. An annular plate 17 is fixedly connected to the inner wall of the outer cylinder II 16. The annular plate 17 is provided with multiple drainage holes. The top plate 12 is provided with a feed inlet 13. A conical feed hopper 15 is fixedly connected to the top outer side of the outer cylinder II 16.

[0026] The top plate 12 is conical. This allows the graphite reactant, which moves to the top of the spiral plate 212, to approach the limiting cylinder 27 under the constraint of the inner wall of the conical top plate 12, thereby facilitating its passage through the perforation 271.

[0027] The conveying device 2 further includes a transmission device 25 and a limiting cylinder 27; the transmission device 25 is fixedly connected inside the cylinder 21; the power device 26 is fixedly connected to the upper end of the transmission device 25; the limiting cylinder 27 is fixedly connected to the lower end of the top plate 12, and the limiting cylinder 27 is located at the upper end of the cylinder 21. The function of the limiting cylinder 27 is to restrict the position of the graphite reactant entering the limiting cylinder 27, so that the graphite entering the gap of the partition plate 264 has sufficient time to drain out the flowable liquid under the action of the partition plate 264, reducing the time required for subsequent drying.

[0028] The cylinder 21 includes a cylindrical body 211; a spiral plate 212 is fixedly connected to the outer side of the cylindrical body 211, and a water outlet 24 is provided at the bottom side of the cylindrical body 211, and a material outlet 213 is also provided at the bottom of the cylindrical body 211; the outer side of the spiral plate 212 is in contact with the inner wall of the outer cylinder I11; the outer side of the cylindrical body 211 is in contact with the inner circular surface of the annular plate 17.

[0029] The power unit 26 includes a motor 261, a motor bracket 262, a transmission shaft 263, multiple partition plates 264, and multiple arc-shaped plates 265. The motor 261 is fixedly connected to the upper end of the top plate 12 via the motor bracket 262. The output shaft of the motor 261 passes through the top plate 12 and is fixedly connected to the transmission shaft 263. Multiple partition plates 264 are fixedly connected to the outer circular surface of the transmission shaft 263. The arc-shaped plates 265 are fixedly connected between two adjacent partition plates 264. The number of arc-shaped plates 265 is half that of the partition plates 264. The partition plates 264 are in contact with the inner wall of the limiting cylinder 27. The limiting cylinder 27 is provided with a through hole 271. The function of the arc-shaped plates 265 is to reduce the frequency of graphite being added to the inclined plate 257, so that the graphite on the inclined plate 257 has sufficient time to dry its moisture.

[0030] The transmission device 25 includes a screen plate 251, a rotating cylinder 252, a fixed rod 253, a baffle 254, a connecting rod 256, an inclined plate 257, a slider 258, a fixed cylinder 259, a telescopic rod 2510, and a limiting rod 2511. The screen plate 251 is conical, with its outer side top fixedly connected to the inner wall top of the cylinder 211, and its bottom fixedly connected to the rotating cylinder 252. A fixed rod 253 is fixedly connected to the inner wall of the rotating cylinder 252, and the other end of the fixed rod 253 is fixedly connected to the transmission shaft 263. The baffle 254 is located inside the rotating cylinder 252 and slides against the inner wall of the rotating cylinder 252. A vertical discharge port 255 is provided on the side of the baffle 254 away from the perforation 271. The connecting rod 256, inclined plate 257, slider 258, fixed cylinder 259, telescopic rod 2510, and limiting rod 2511. One end of the connecting rod 256 is fixedly connected to the lower end of the baffle 254, and the other end of the connecting rod 256 is fixedly connected to the upper end of the inclined plate 257; the inner wall of the rotating cylinder 252 is also provided with an inclined groove 2521; the side of the inclined plate 257 is fixedly connected to a slider 258 that slides in cooperation with the groove 2521; the bottom end of the outer side of the rotating cylinder 252 is connected to the inner wall of the fixed cylinder 259 through a bearing; the fixed cylinder 259 is fixedly connected to the inside of the cylinder 211, and the discharge port 213 communicates with the fixed cylinder 259; a limiting rod 2511 is fixedly connected to the inner wall of the fixed cylinder 259; the other end of the limiting rod 2511 is fixedly connected to a telescopic rod 2510; the free end of the telescopic rod 2510 is fixedly connected to the lower end of the inclined plate 257.

[0031] The telescopic rod 2510 has a rectangular cross-section. The rectangular telescopic rod 2510 restricts the rotation of the inclined plate 257, preventing it from affecting its upward and downward movement, and thus preventing it from affecting the material discharge.

[0032] Resistance wires 22 are fixedly connected to both the inner wall of the cylinder 211 and the outer wall of the rotating cylinder 252; a power supply box 23 is also fixedly connected between the inner wall of the cylinder 211 and the outer wall of the rotating cylinder 252; the power supply box 23 is electrically connected to the resistance wires 22.

[0033] A desulfurization method for an expanded graphite desulfurization device, the desulfurization method comprising the following steps:

[0034] Step 1: Introduce deionized water into the outer cylinder I11 through the feed inlet 13 and start the motor 261;

[0035] Step 2: Add graphite reactants into the feed tank 15. The graphite reactants move upward under the drive of the spiral plate 212, and come into full contact with the deionized water flowing downward under the action of gravity. After being heated by the resistance wire 22, they react fully.

[0036] Step 3: The graphite reactant that moves upward enters the limiting cylinder 27 through the perforation 271 and is located between two adjacent partition plates 264. It slides on the sieve plate 251 to drain some of the liquid.

[0037] Step 5: The graphite reactants on the sieve plate 251 move through the discharge port 255 to the upper end of the inclined plate 257, are dried, and then discharged.

[0038] The working principle of this invention is as follows: When using this device, deionized water is introduced into the outer cylinder I11 through the feed inlet 13. Under the action of gravity, the deionized water moves downward along the spiral plate 212 and is discharged through the drain hole on the annular plate 17. The motor 261 is started, and the motor 261 drives the transmission shaft 263 to rotate, which in turn drives the fixed rod 253, the rotating cylinder 252 and the sieve plate 251 to rotate. The sieve plate 251 drives the cylinder 211 to rotate, which in turn drives the spiral plate 212 to rotate.

[0039] Graphite reactants are then added to the feed tank 15. Driven by the spiral plate 212, the graphite reactants move upward and come into full contact with the deionized water flowing downward under gravity. After being heated by the resistance wire 22, they react fully. When the graphite reactants reach the highest point, the reacted graphite reactants move upward and enter the limiting cylinder 27 through the perforation 271, and are located between two adjacent partition plates 264. The upper end of the partition plate 264 contacts the top plate 12, and the lower end of the partition plate 264 contacts the sieve plate 251. When the partition plate 264 rotates with the drive shaft 263, the graphite reactants slide on the sieve plate 251, so that the liquid mixed in the graphite reactants passes through the sieve plate 251 under gravity and through the gap between the cylinder 211 and the rotating cylinder 252, and is discharged through the outlet 24.

[0040] Because the discharge port 255 on the baffle 254 is set away from the perforation 271, the graphite reactant will only pass through the discharge port 255 and enter the interior of the rotating cylinder 252 under the action of gravity after the partition plate 264 rotates the graphite reactant 180°. This allows most of the flowing water mixed in the graphite reactant to pass through the screen 251. The graphite reactant inside the rotating cylinder 252 moves to the upper end of the inclined plate 257 under the action of gravity. The water adsorbed on the graphite reactant is dried by the resistance wire 22.

[0041] During the rotation of the rotating cylinder 252, the inclined groove 2521 on the inner wall of the rotating cylinder 252 also rotates. The inclined plate 257 cannot rotate under the restriction of the telescopic rod 2510 and the limiting rod 2511. Therefore, the slider 258 on the side of the inclined plate 257 will move up and down with the inclined groove 2521. When the slider 258 moves to the lowest point of the inclined groove 2521, the lowest point of the inclined plate 257 is exposed at the lower end of the rotating cylinder 252, and the graphite reactants near the inclined plate 257 are discharged. Then, with the rotation of the rotating cylinder 252, the inclined plate 257 moves back into the rotating cylinder 252. The graphite reactants that have detached from the inclined plate 257 are discharged through the discharge port 213.

[0042] The above method allows for continuous desulfurization of graphite reactants without the need for manual replacement of raw materials, saving time and improving efficiency.

Claims

1. An expanded graphite desulfurization device characterized by comprising: The device includes an outer shell and a conveying device; the conveying device includes a cylinder and a power unit; the power unit is fixedly connected to the top of the outer shell; the power unit is fixedly connected to the cylinder, and a spiral plate is provided between the cylinder and the outer shell; the outer shell includes an outer cylinder I, a top plate, a connecting rod, a feed hopper, an outer cylinder II, and an annular plate; the top of the outer cylinder I is fixedly connected to the top of the top plate, and the bottom of the outer cylinder I is fixedly connected to the outer cylinder II via a connecting rod; an annular plate is fixedly connected to the inner wall of the outer cylinder II; the annular plate has multiple drainage holes; the top plate has a feed inlet; and a conical feed hopper is fixedly connected to the top outer side of the outer cylinder II. The conveying device also includes a transmission device and a limiting cylinder; the transmission device is fixedly connected inside the cylinder; the power device is fixedly connected to the upper end of the transmission device; the limiting cylinder is fixedly connected to the lower end of the top plate and is located at the upper end of the cylinder. The cylinder includes a cylindrical body; a spiral plate is fixedly connected to the outer side of the cylindrical body, and a water outlet is provided at the bottom side of the cylindrical body, and a material outlet is also provided at the bottom of the cylindrical body; the outer side of the spiral plate contacts the inner wall of the outer cylinder I; the outer side of the cylindrical body contacts the inner circular surface of the annular plate. The power unit includes a motor, a motor bracket, a drive shaft, multiple partition plates, and multiple arc-shaped plates. The motor is fixedly connected to the upper end of the top plate via the motor bracket. The output shaft of the motor passes through the top plate and is fixedly connected to the drive shaft. Multiple partition plates are fixedly connected to the outer circular surface of the drive shaft. The arc-shaped plates are fixedly connected between two adjacent partition plates. The number of arc-shaped plates is half that of the partition plates. The partition plates are in contact with the inner wall of the limiting cylinder. The limiting cylinder has through holes. The transmission device includes a screen plate, a rotating cylinder, a fixed rod, a baffle, a connecting rod, an inclined plate, a slider, a fixed cylinder, a telescopic rod, and a limiting rod. The screen plate is conical, with its outer surface top fixedly connected to the top of the inner wall of the cylinder, and its bottom fixedly connected to the rotating cylinder. A fixed rod is fixedly connected to the inner wall of the rotating cylinder, with the other end of the fixed rod fixedly connected to the transmission shaft. The baffle is located inside the rotating cylinder and slides against the inner wall of the rotating cylinder. A vertical discharge port is provided on the side of the baffle away from the perforation. One end of the connecting rod is fixed... The lower end of the connecting rod is connected to the baffle, and the other end of the connecting rod is fixedly connected to the upper end of the inclined plate; the inner wall of the rotating cylinder is also provided with an inclined groove; a slider that slides in cooperation with the groove is fixedly connected to the side of the inclined plate; the bottom end of the outer side of the rotating cylinder is connected to the inner wall of the fixed cylinder through a bearing; the fixed cylinder is fixedly connected to the inside of the cylinder, and the discharge port is connected to the fixed cylinder; a limit rod is fixedly connected to the inner wall of the fixed cylinder; the other end of the limit rod is fixedly connected to a telescopic rod; the free end of the telescopic rod is fixedly connected to the lower end of the inclined plate; Resistance wires are fixedly connected to both the inner wall of the cylinder and the outer wall of the rotating cylinder.

2. The expanded graphite desulfurization device according to claim 1, characterized in that: The top plate is conical.

3. The expanded graphite desulfurization device according to claim 1, characterized by: The telescopic rod has a rectangular cross-section.

4. The expanded graphite desulfurization device according to claim 3, characterized by: A power supply box is also fixedly connected between the inner wall of the cylinder and the outer wall of the rotating cylinder; the power supply box is electrically connected to the resistance wire.

5. The desulfurization method of claim 4, wherein the desulfurization method is characterized by: The desulfurization method includes the following steps: Step 1: Introduce deionized water into the outer cylinder I through the feed inlet and start the motor; Step 2: Add graphite reactants into the feed tank. The graphite reactants move upward under the drive of the spiral plate, come into full contact with the deionized water flowing downward under gravity, and react fully after being heated by the resistance wire. Step 3: The graphite reactant that moves upwards after the reaction enters the limiting cylinder through the perforation and is located between two adjacent partition plates. It slides on the sieve plate and drains off some of the liquid. Step 4: The graphite reactants on the sieve plate move through the discharge port to the top of the inclined plate, are dried, and then discharged.

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