A high-sulfur-content isobutylene sulfide production device

Abstract

The utility model belongs to vulcanized isobutene production equipment technical field, specifically disclose a high sulfur content vulcanized isobutene production device, including from top to bottom once series' sulfur adding kettle, heat exchanger, vulcanization kettle, sulfur adding kettle top fixedly connected with solid pipe and liquid adding pipe, the first stirrer is rotatably connected in sulfur adding kettle, a plurality of electric heating rods are fixedly connected in sulfur adding kettle, sulfur adding kettle bottom is passed through first connecting pipe and is communicated with heat exchanger, and the heat exchanger is communicated with vulcanization kettle through second connecting pipe, a plurality of air pipes are fixedly connected in vulcanization kettle, a plurality of air nozzles are connected on air pipe, and air pipe is communicated with air inlet pipe that penetrates vulcanization kettle side wall, and the second stirrer is rotatably connected in vulcanization kettle. The utility model sets up sulfur adding kettle, and sets up electric heating rod in sulfur adding kettle, can utilize high temperature and promote the activation of sulfur, avoid the production of mercaptan of elemental sulfur and olefin, thereby reduce the generation of harmful gas.

Description

Technical Field

[0001] This utility model belongs to the technical field of sulfurized isobutylene production equipment, specifically a sulfurized isobutylene production device with high sulfur content. Background Technology

[0002] Isobutylene sulfide is a sulfur-containing extreme pressure anti-wear additive for lubricating oils, appearing as a transparent, orange-yellow oily liquid. Due to its high sulfur content, isobutylene sulfide exhibits excellent extreme pressure properties and oil solubility, good thermal stability, and requires only a small dosage. It effectively prevents metal surface damage under high-speed impact loads and is widely used in gear oils, metalworking fluids, and extreme pressure greases. The sulfur content of isobutylene sulfide significantly affects its performance; for example, high-sulfur isobutylene sulfide possesses excellent extreme pressure anti-wear properties, while low-sulfur isobutylene sulfide offers the benefits of low emissions and equipment protection. Existing sulfurization equipment does not undergo high-temperature activation of sulfur and is relatively long, posing a risk of leaking harmful gases. Therefore, new isobutylene sulfide production equipment needs to be developed to meet this requirement. Utility Model Content

[0003] To address the above technical problems, this utility model provides a sulfurized isobutylene production apparatus with high sulfur content.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is as follows: a high-sulfur-content isobutylene sulfide production device, comprising a sulfurizing kettle, a heat exchanger, and a sulfidation kettle connected in series from top to bottom. A solid pipe and a liquid adding pipe are fixedly connected to the top of the sulfurizing kettle. A first stirrer is rotatably connected inside the sulfurizing kettle. Several electric heating rods are fixedly connected inside the sulfurizing kettle. The bottom of the sulfurizing kettle is connected to the heat exchanger through a first connecting pipe. The heat exchanger is connected to the sulfidation kettle through a second connecting pipe. Several gas dispersing pipes are fixedly connected inside the sulfidation kettle, and several gas nozzles are connected to the gas dispersing pipes. The gas dispersing pipes are connected to an air inlet pipe penetrating the side wall of the sulfidation kettle. A second stirrer is rotatably connected inside the sulfidation kettle. A discharge port is fixedly connected to the bottom of the sulfidation kettle. A screw conveyor is fixedly connected to the solid pipe.

[0005] Furthermore, the auger conveyor is connected to an auger inlet at its first end and an auger outlet at its last end. The auger outlet is connected to the solid tube. A spiral auger is rotatably connected inside the auger conveyor. An auger motor is fixedly connected to the side of the auger conveyor. The shaft of the auger motor passes through the side of the auger conveyor and is fixedly connected to the spiral auger.

[0006] Furthermore, a serpentine tube is fixedly connected inside the heat exchanger. The upper end of the serpentine tube is connected to the first connecting pipe, and the lower end of the serpentine tube is connected to the second connecting pipe. The lower part of the heat exchanger is connected to an inlet, and the upper part is connected to an outlet.

[0007] Furthermore, heat dissipation fins are fixedly connected to the outside of the serpentine tube.

[0008] Furthermore, a vent pipe is fixedly connected inside the vulcanizing reactor, and the vent pipe connects all the gas dispersing pipes.

[0009] Furthermore, supports are fixedly connected to the bottom of the vulcanizing kettle, between the vulcanizing kettle and the heat exchanger, between the heat exchanger and the vulcanizing kettle, and between the vulcanizing kettle and the vulcanizing kettle.

[0010] Furthermore, a first motor is fixedly connected to the top of the sulfurizing kettle, and the shaft of the first motor passes through the top wall of the sulfurizing kettle and is fixedly connected to the first agitator.

[0011] Furthermore, a second motor is fixedly connected to the side wall of the vulcanizing reactor, and the shaft of the second motor passes through the side wall of the vulcanizing reactor and is fixedly connected to the second stirrer.

[0012] This utility model has the following advantages compared with the prior art:

[0013] 1. This utility model is equipped with a sulfur addition kettle and an electric heating rod inside the sulfur addition kettle. The high temperature can promote the activation of sulfur and avoid the formation of mercaptans from elemental sulfur and olefins, thereby reducing the generation of harmful gases. A heat exchanger is set up to lower the temperature of the substance that reacts with isobutylene, thereby improving the sulfurization reaction effect. A sulfurization kettle is set up, and the passage between the sulfurization kettle and other reaction equipment is short, reducing the risk of leakage of harmful substances.

[0014] 2. This utility model is equipped with an auger conveyor, which can transport powdered sulfur into the sulfur addition kettle, making it convenient to transport powdered materials.

[0015] 3. This utility model is equipped with a serpentine tube, which is used to reduce the temperature of the material in the sulfurizing kettle and quickly cool it down to adapt to the sulfurization reaction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the heat exchanger of this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of the vulcanizing kettle of this utility model.

[0019] The components are as follows: 1. Sulfurizing kettle, 2. Heat exchanger, 3. Sulfation kettle, 4. Liquid filling pipe, 5. First motor, 6. First agitator, 7. Solid pipe, 8. First connecting pipe, 9. Second connecting pipe, 10. Air inlet pipe, 11. Air dispersing pipe, 12. Air nozzle, 13. Second motor, 14. Second agitator, 15. Discharge port, 16. Electric heating rod, 17. Support frame, 18. Screw conveyor, 19. Spiral auger, 20. Screw motor, 21. Screw inlet, 22. Screw outlet, 23. Serpentine pipe, 24. Water inlet, 25. Water outlet, 26. Vent pipe. Detailed Implementation

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

[0021] like Figures 1-3 The apparatus shown is a high-sulfur isobutylene sulfide production device, comprising a sulfurizing vessel 1, a heat exchanger 2, and a sulfurizing vessel 3 connected in series from top to bottom. A solid pipe 7 and a liquid adding pipe 4 are fixedly connected to the top of the sulfurizing vessel 1. Sulfur powder is added to the solid pipe 7, and an aqueous solution of sodium sulfide is added to the liquid adding pipe 4. A first stirrer 6 is rotatably connected inside the sulfurizing vessel 1, and a sealed bearing is provided at the connection between the first stirrer 6 and the sulfurizing vessel 1. Several electric heating rods 16 are fixedly connected inside the sulfurizing vessel 1. A temperature probe is installed inside the sulfurizing vessel 1, and the temperature probe is electrically connected to a temperature display. The bottom of the sulfur reactor 1 is connected to the heat exchanger 2 via the first connecting pipe 8. The heat exchanger 2 is connected to the sulfurizing reactor 3 via the second connecting pipe 9. Several gas dispersing pipes 11 are fixedly connected inside the sulfurizing reactor 3. The gas dispersing pipes 11 are arranged vertically and several gas nozzles 12 are connected to the gas dispersing pipes 11. The gas dispersing pipes 11 are connected to the air inlet pipe 10 that penetrates the side wall of the sulfurizing reactor 3. A second agitator 14 is rotatably connected inside the sulfurizing reactor 3. A sealed bearing is provided at the connection between the second agitator 14 and the sulfurizing reactor 3. A discharge port 15 is fixedly connected to the bottom of the sulfurizing reactor 3. A screw conveyor 18 is fixedly connected to the solid pipe 7.

[0022] Solenoid valves are installed on the liquid addition pipe 4, the first connecting pipe 8, the second connecting pipe 9, the air inlet pipe 10, and the discharge port 15, and a solenoid slide valve is installed on the solid pipe 7.

[0023] To facilitate the conveying of powdered sulfur solids, the auger conveyor 18 is connected to an auger inlet 21 at the beginning and an auger outlet 22 at the end. The auger outlet 22 is connected to the solid pipe 7. A spiral auger 19 is rotatably connected inside the auger conveyor 18. An auger motor 20 is fixedly connected to the side of the auger conveyor 18. The shaft of the auger motor 20 passes through the side of the auger conveyor 18 and is fixedly connected to the spiral auger 19.

[0024] To facilitate cooling, a serpentine tube 23 is fixedly connected inside the heat exchanger 2. The upper end of the serpentine tube 23 is connected to the first connecting pipe 8, and the lower end of the serpentine tube 23 is connected to the second connecting pipe 9. The lower part of the heat exchanger 2 is connected to the water inlet 24, and the upper part is connected to the water outlet 25.

[0025] In heat exchanger 2, the material in sulfurizing vessel 1 flows through the tube side, while the cooling water flows through the shell side.

[0026] To improve cooling efficiency, heat dissipation fins are fixedly connected to the outside of the serpentine tube 23.

[0027] To facilitate gas dissipation, a vent pipe 26 is fixedly connected inside the vulcanizing kettle 3, which connects all the gas dissipation pipes 11.

[0028] To facilitate stable support, brackets 17 are fixedly connected to the bottom of the vulcanizing kettle 3, the vulcanizing kettle 1 and the heat exchanger 2, the heat exchanger 2 and the vulcanizing kettle 3, and the vulcanizing kettle 1 and the vulcanizing kettle 3.

[0029] To facilitate the control of the stirring of the sulfurizing kettle 1, a first motor 5 is fixedly connected to the top of the sulfurizing kettle 1. The rotating shaft of the first motor 5 passes through the top wall of the sulfurizing kettle 1 and is fixedly connected to the first stirrer 6.

[0030] To facilitate the control of stirring in the vulcanizing kettle 3, a second motor 13 is fixedly connected to the side wall of the vulcanizing kettle 3. The rotating shaft of the second motor 13 passes through the side wall of the vulcanizing kettle 3 and is fixedly connected to the second stirrer 14.

[0031] It should be noted that both the first motor 5 and the second motor 13 are variable frequency motors.

[0032] The specific working process of this utility model is as follows:

[0033] During operation, sodium sulfide aqueous solution is introduced into sulfurizing vessel 1 through liquid addition pipe 4, and powdered sulfur solid is added through screw conveyor inlet 21. Screw motor 20 is turned on, and screw conveyor 19 drives sulfur powder from screw conveyor outlet 22 into solid pipe 7 and into sulfurizing vessel 1. At this time, first motor 5 and electric heating rod 16 are turned on. During the heating process, first stirrer 6 stirs to activate the sulfur. After the sulfur is activated, the solenoid valves on first connecting pipe 8 and second connecting pipe 9 are opened. Cooling water enters heat exchanger 2 from water inlet 24 and flows out from water outlet 25. The material flows through serpentine pipe 23, and after cooling, it enters sulfurizing vessel 3. At this time, second motor 13 is turned on to drive second stirrer 14 to rotate. At the same time, isobutylene gas is introduced through air inlet pipe 10 and into sulfurizing vessel 3 through air nozzle 12 on gas diffuser pipe 11 for sulfurization. After sulfurization is completed, the solenoid valve on discharge port 15 is opened, and the material is discharged from discharge port 15.

Claims

1. A high-sulfur-content isobutylene sulfide production apparatus, characterized in that: The system comprises a sulfurizing vessel (1), a heat exchanger (2), and a sulfurizing vessel (3) connected in series from top to bottom. A solid pipe (7) and a liquid injection pipe (4) are fixedly connected to the top of the sulfurizing vessel (1). A first stirrer (6) is rotatably connected inside the sulfurizing vessel (1). Several electric heating rods (16) are fixedly connected inside the sulfurizing vessel (1). The bottom of the sulfurizing vessel (1) is connected to the heat exchanger (2) via a first connecting pipe (8). The heat exchanger (2) is connected to... The vulcanizing kettle (3) is connected, and several gas dispersing pipes (11) are fixedly connected inside the vulcanizing kettle (3). Several gas nozzles (12) are connected to the gas dispersing pipes (11). The gas dispersing pipes (11) are connected to the air inlet pipes (10) that penetrate the side wall of the vulcanizing kettle (3). A second stirrer (14) is rotatably connected inside the vulcanizing kettle (3). A discharge port (15) is fixedly connected to the bottom of the vulcanizing kettle (3). An auger conveyor (18) is fixedly connected to the solid pipe (7).

2. The high-sulfur-content isobutylene production apparatus according to claim 1, characterized in that: The auger feeder (18) has an auger inlet (21) at one end and an auger outlet (22) at the other end. The auger outlet (22) is connected to the solid tube (7). A spiral auger (19) is rotatably connected inside the auger feeder (18). An auger motor (20) is fixedly connected to the side of the auger feeder (18). The shaft of the auger motor (20) passes through the side of the auger feeder (18) and is fixedly connected to the spiral auger (19).

3. The high-sulfur-content isobutylene production apparatus according to claim 1, characterized in that: A serpentine tube (23) is fixedly connected inside the heat exchanger (2). The upper end of the serpentine tube (23) is connected to the first connecting pipe (8), and the lower end of the serpentine tube (23) is connected to the second connecting pipe (9). The lower part of the heat exchanger (2) is connected to an inlet (24), and the upper part is connected to an outlet (25).

4. The high-sulfur-content isobutylene production apparatus according to claim 3, characterized in that: The serpentine tube (23) is externally fixed with heat dissipation fins.

5. The high-sulfur-content isobutylene production apparatus according to claim 1, characterized in that: A vent pipe (26) is fixedly connected inside the vulcanizing kettle (3), and the vent pipe (26) connects all the gas dispersing pipes (11).

6. The high-sulfur-content isobutylene production apparatus according to claim 1, characterized in that: The bottom of the vulcanizing kettle (3), the sulfurizing kettle (1) and the heat exchanger (2), the heat exchanger (2) and the vulcanizing kettle (3), and the sulfurizing kettle (1) and the vulcanizing kettle (3) are all fixedly connected to the support (17).

7. The high-sulfur-content isobutylene production apparatus according to claim 1, characterized in that: The top of the sulfurizing kettle (1) is fixedly connected to a first motor (5), and the shaft of the first motor (5) passes through the top wall of the sulfurizing kettle (1) and is fixedly connected to the first stirrer (6).

8. The high-sulfur-content isobutylene production apparatus according to claim 1, characterized in that: A second motor (13) is fixedly connected to the side wall of the vulcanizing kettle (3), and the shaft of the second motor (13) passes through the side wall of the vulcanizing kettle (3) and is fixedly connected to the second stirrer (14).

Images