A coil-type cold explosion-proof sulfur crushing device

Abstract

This utility model relates to the field of chemical engineering technology and discloses a coil-type cold explosion-proof sulfur pulverizing device, including a frame. A pretreatment chamber is fixedly connected to the top of the frame, and a pulverizing chamber is installed on the right side of the pretreatment chamber. A connecting pipe is installed between the pretreatment chamber and the pulverizing chamber. A second motor is installed on the top of the connecting pipe, and a stirring rod is fixedly connected to the output end of the second motor. A feed inlet is opened on the top of the pretreatment chamber, and a conveying pipe is fixedly connected to the side of the pulverizing chamber away from the connecting pipe. A discharge outlet is installed at the end of the conveying pipe away from the pulverizing chamber. In this utility model, by introducing a pretreatment step, the sulfur raw material is initially crushed before entering the pulverizing chamber, which significantly reduces the energy input required for the pulverizing equipment. The stirring, vibration, and other processes in the pretreatment chamber can decompose agglomerated materials, improve the embrittlement effect of the raw material, and reduce the energy consumption of the pulverizing process.

Description

Technical Field

[0001] This utility model relates to the field of chemical engineering technology, and in particular to a coil-type cold explosion-proof sulfur pulverizing device. Background Technology

[0002] Sulfur is an important raw material in the chemical, rubber and other fields. Its crushing process needs to meet the requirements of ultra-fine particle size and high purity. Sulfur is brittle and easy to break at room temperature, but it is easy to soften and stick together due to friction and heating during crushing. Moreover, when the dust reaches a certain concentration, it is easy to cause combustion and explosion when exposed to static electricity or high temperature. In order to meet the safe crushing requirements of sulfur, the coil cold explosion-proof sulfur crushing device has emerged.

[0003] The coil-cooled explosion-proof sulfur pulverizer consists of a pre-cooling system, a pulverizing chamber, a coil cooling system, and a collection system. During operation, sulfur first enters the pre-cooling system, where it exchanges heat with a low-temperature medium such as liquid nitrogen, causing the material to become brittle. After entering the pulverizing chamber, it is initially pulverized by impact, shearing, and friction from a high-speed impeller or toothed disc. At this time, the coil cooling system surrounding the pulverizing chamber uses chilled brine or low-temperature gas to remove heat, preventing sulfur dust explosions caused by excessively high temperatures. The device operates in a closed environment, with nitrogen introduced to reduce the oxygen concentration, thereby improving the safety and efficiency of sulfur pulverization.

[0004] In traditional sulfur crushing operations, untreated raw materials are typically fed directly into the crushing process. Due to the inherent properties of sulfur, which is hard and has a certain degree of toughness, direct crushing requires a significant amount of energy from the crushing equipment, leading to a severe increase in equipment load, increased malfunctions, high maintenance costs, and disruption to production continuity. Furthermore, during the crushing process, untreated sulfur generates heat due to friction, which is difficult to dissipate effectively, causing a rapid temperature rise and posing a high risk of sulfur dust explosions, seriously threatening production safety. Therefore, a coil-type cold explosion-proof sulfur crushing device is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a coil-type cold explosion-proof sulfur pulverizing device, which aims to improve the problem of excessive equipment load and high dust explosion risk caused by direct pulverization of untreated sulfur in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A coil-type cold explosion-proof sulfur pulverizing device includes a frame. A pretreatment chamber is fixedly connected to the top of the frame. A pulverizing chamber is installed on the right side of the pretreatment chamber. A connecting pipe is installed between the pretreatment chamber and the pulverizing chamber. A second motor is installed at the top of the connecting pipe. A stirring rod is fixedly connected to the output end of the second motor. A feed inlet is opened at the top of the pretreatment chamber. A conveying pipe is fixedly connected to the side of the pulverizing chamber away from the connecting pipe. A discharge outlet is installed at the end of the conveying pipe away from the pulverizing chamber. A pre-pulverizing component and a vibration component are arranged inside the pretreatment chamber. A conveying component is arranged inside the conveying pipe. A coil body is sleeved on the outer wall of the pulverizing chamber. A cooling water tank is arranged on the outside of the pulverizing chamber. An inert gas is arranged on the outside of the pretreatment chamber.

[0008] As a further description of the above technical solution:

[0009] The pre-crushing component includes a motor, which is fixedly connected to the outside of the pretreatment chamber. A gear is fixedly connected to the output end of the motor, and a rotating drum is fixedly connected to the output end of the motor. Rotating teeth are uniformly fixedly connected to the outside of the rotating drum.

[0010] As a further description of the above technical solution:

[0011] The vibration assembly includes an electric actuator, the output end of which is fixedly connected to a conveyor plate, and a spring rod is installed between the conveyor plate and the pretreatment chamber.

[0012] As a further description of the above technical solution:

[0013] The conveying assembly includes a motor three, the output end of which is fixedly connected to a rotating shaft two, and an auger is fixedly connected to the outer side of the rotating shaft two.

[0014] As a further description of the above technical solution:

[0015] The grinding chamber is fixedly connected to the top of the frame, and the stirring rod is rotatably connected to the inside of the grinding chamber.

[0016] As a further description of the above technical solution:

[0017] Specifically, a pair of gears are provided, and the pair of gears mesh with each other.

[0018] As a further description of the above technical solution:

[0019] The pretreatment chamber and the pulverizing chamber are connected by the connecting pipe, and the coil body is fixedly connected to the outside of the cooling water tank.

[0020] As a further description of the above technical solution:

[0021] The auger is rotatably connected inside the delivery pipe.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by introducing a pretreatment step, the sulfur raw material is initially crushed before entering the crushing chamber, which significantly reduces the energy input required by the crushing equipment. The stirring, vibration and other processes in the pretreatment chamber can decompose the agglomerated material, improve the embrittlement effect of the raw material, reduce the energy consumption of the crushing process, and thus effectively reduce the load on the equipment and reduce the probability of failure.

[0024] 2. In this utility model, the three motors drive the two rotating shafts and the auger to quickly push the crushed material to the discharge port, reducing manual operation, preventing the discharge port from getting blocked, shortening the single production cycle, and helping to improve conveying efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a coil-type cold explosion-proof sulfur pulverizing device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the pre-crushing component of a coil-type cold explosion-proof sulfur crushing device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the stirring rod of a coil-type cold explosion-proof sulfur pulverizing device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the conveying component of a coil-type cold explosion-proof sulfur pulverizing device proposed in this utility model.

[0029] Legend:

[0030] 1. Frame; 2. Pretreatment chamber; 3. Connecting pipe; 4. Crushing chamber; 5. Conveying pipe; 6. Feed inlet; 7. Discharge outlet; 8. Motor II; 9. Stirring rod; 10. Coil body; 11. Pre-crushing assembly; 12. Motor I; 13. Gear; 14. Rotary drum; 15. Rotating gear; 16. Vibration assembly; 17. Electric push rod; 18. Conveying plate; 19. Spring rod; 20. Inert gas; 21. Cooling water tank; 22. Conveying assembly; 23. Motor III; 24. Rotating shaft II; 25. Screwdriver. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3 This utility model provides an embodiment of a coil-type cold explosion-proof sulfur pulverizing device, comprising a frame 1, a pretreatment chamber 2 fixedly connected to the top of the frame 1, a pulverizing chamber 4 installed on the right side of the pretreatment chamber 2, a connecting pipe 3 installed between the pretreatment chamber 2 and the pulverizing chamber 4, a motor 8 installed at the top of the connecting pipe 3, a stirring rod 9 fixedly connected to the output end of the motor 8, a feed inlet 6 opened at the top of the pretreatment chamber 2, a conveying pipe 5 fixedly connected to the side of the pulverizing chamber 4 away from the connecting pipe 3, a discharge outlet 7 installed at the end of the conveying pipe 5 away from the pulverizing chamber 4, a pre-pulverizing component 11 and a vibration component 16 arranged inside the pretreatment chamber 2, a conveying component 22 arranged inside the conveying pipe 5, and a coil body 1 sleeved on the outer wall of the pulverizing chamber 4. A cooling water tank 21 is provided on the outside of the crushing chamber 4, and an inert gas 20 is provided on the outside of the pretreatment chamber 2. The pre-crushing component 11 includes a motor 12, which is fixedly connected to the outside of the pretreatment chamber 2. A gear 13 is fixedly connected to the output end of the motor 12, and a rotating drum 14 is fixedly connected to the output end of the motor 12. Rotating teeth 15 are evenly fixedly connected to the outside of the rotating drum 14. Specifically, there is a pair of gears 13, which mesh with each other. The vibration component 16 includes an electric push rod 17, and a conveying plate 18 is fixedly connected to the output end of the electric push rod 17. A spring rod 19 is installed between the conveying plate 18 and the pretreatment chamber 2. The crushing chamber 4 is fixedly connected to the top of the frame 1, and the stirring rod 9 is rotatably connected to the inside of the crushing chamber 4.

[0033] Specifically, sulfur material enters the pretreatment chamber 2 through the feed inlet 6. Simultaneously, inert gas 20 is injected into the pretreatment chamber 2 via a specific conveying structure to reduce the oxygen concentration, creating a safe working environment and mitigating the risk of explosion from the source. Subsequently, motor 12 starts, and its output shaft drives a pair of meshing gears 13, causing the two rotating drums 14 to rotate in opposite directions at high speed. The evenly distributed rotating teeth 15 on the outer side of the drums 14 impact and shear the sulfur material, completing the initial crushing. The particle size is reduced and the distribution is more uniform, reducing the burden on equipment in subsequent pulverization processes. To prepare for the load and improve crushing efficiency, during the operation of motor 12, the output end of electric push rod 17 makes regular extension and retraction movements, pushing conveyor plate 18 to move smoothly laterally in pretreatment chamber 2. Spring rod 19 plays a buffering and auxiliary reset function in this process, ensuring that the vibration of conveyor plate 18 is stable and orderly. Under the dual action of vibration and gravity, the sulfur material that has been initially crushed can smoothly pass through connecting pipe 3 and enter crushing chamber 4, ensuring the high efficiency and stability of material conveying, reducing the risk of material blockage, helping to reduce subsequent stirring pressure, and improving sulfur stirring efficiency and quality.

[0034] Reference Figure 2 and Figure 4 The conveying assembly 22 includes a motor 3 23, the output end of which is fixedly connected to a rotating shaft 24, and an auger 25 is fixedly connected to the outside of the rotating shaft 24. The pretreatment chamber 2 and the crushing chamber 4 are connected through a connecting pipe 3. The coil body 10 is fixedly connected to the outside of the cooling water tank 21, and the auger 25 is rotatably connected to the inside of the conveying pipe 5.

[0035] Specifically, a low-temperature medium is continuously supplied to the coil body 10 surrounding the crushing chamber 4 through the cooling water tank 21. Utilizing a heat exchange mechanism, the coil body 10 quickly removes the heat generated by mechanical friction and material collision during crushing, keeping the temperature of the crushing chamber 4 within a safe threshold. This effectively reduces the risk of sulfur dust exploding due to reaching its ignition point at high temperatures, thus improving the safety of the crushing operation. After crushing, the material enters the conveying stage through the conveying pipe 5. The motor 23 is started, and its output drives the rotating shaft 24, which in turn drives the auger 25 to rotate synchronously. With the help of the spiral propulsion of the auger 25, the material is smoothly and efficiently pushed to the discharge port 7 for discharge, realizing automated and continuous material conveying, reducing manual intervention, avoiding material accumulation and blockage, and helping to improve the smoothness and efficiency of the production process, ensuring stable production operation.

[0036] Working principle: During operation, sulfur enters the pretreatment chamber 2 through the feed inlet 6. At this time, inert gas 20 is transported to the pretreatment chamber 2 through relevant components. Subsequently, motor 12 starts, and its output end drives the gear 13 and the rotating drum 14 connected to it to rotate. Since a pair of gears 13 mesh with each other, the two rotating drums 14 rotate in opposite directions. The rotating teeth 15 on the outside of the rotating drum 14 perform preliminary crushing and dispersion of the sulfur material, so that the particle size of the material is reduced and the distribution is more uniform. At the same time, the output end of the electric push rod 17 performs telescopic movement, pushing the conveyor plate 18 to move laterally in the pretreatment chamber 2. The spring rod 19 plays the role of buffering and auxiliary reset, so that the vibration of the conveyor plate 18 is more stable. Under the dual action of vibration and gravity, the sulfur material that has been preliminarily crushed smoothly enters the crushing chamber 4 through the connecting pipe 3.

[0037] After the material enters the crushing chamber 4, the second motor 8 drives the stirring rod 9 to rotate, further stirring and crushing the material. During the crushing process, the coil body 10 surrounding the crushing chamber 4 uses the low-temperature medium provided by the cooling water tank 21 to remove heat and prevent the temperature from being too high and causing an explosion. The crushed material passes through the conveying pipe 5. At this time, the third motor 23 starts, and its output end drives the rotating shaft 24 and the auger 25 to rotate, conveying the material from the conveying pipe 5 to the discharge port 7 for discharge.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coil-type cold explosion-proof sulfur crushing device, comprising a frame (1), characterized in that: A pretreatment chamber (2) is fixedly connected to the top of the frame (1). A crushing chamber (4) is installed on the right side of the pretreatment chamber (2). A connecting pipe (3) is installed between the pretreatment chamber (2) and the crushing chamber (4). A second motor (8) is installed on the top of the connecting pipe (3). A stirring rod (9) is fixedly connected to the output end of the second motor (8). A feed inlet (6) is opened on the top of the pretreatment chamber (2). The side of the crushing chamber (4) away from the connecting pipe (3) is fixedly connected to... A conveying pipe (5) is connected to the pretreatment chamber (2), and a discharge port (7) is installed at the end of the conveying pipe (5) away from the crushing chamber (4). A pre-crushing component (11) and a vibration component (16) are installed inside the pretreatment chamber (2). A conveying component (22) is installed inside the conveying pipe (5). A coil body (10) is fitted on the outer wall of the crushing chamber (4). A cooling water tank (21) is installed on the outside of the crushing chamber (4). An inert gas (20) is installed on the outside of the pretreatment chamber (2).

2. The coil-type cold explosion-proof sulfur pulverizing device according to claim 1, characterized in that: The pre-crushing component (11) includes a motor (12), which is fixedly connected to the outside of the pretreatment chamber (2). A gear (13) is fixedly connected to the output end of the motor (12), and a rotating drum (14) is fixedly connected to the output end of the motor (12). Rotating teeth (15) are evenly fixedly connected to the outside of the rotating drum (14).

3. The coil-type cold explosion-proof sulfur pulverizing device according to claim 1, characterized in that: The vibration assembly (16) includes an electric actuator (17), the output end of which is fixedly connected to a conveyor plate (18), and a spring rod (19) is installed between the conveyor plate (18) and the pretreatment chamber (2).

4. The coil-type cold explosion-proof sulfur pulverizing device according to claim 1, characterized in that: The conveying assembly (22) includes a motor three (23), the output end of which is fixedly connected to a rotating shaft two (24), and an auger (25) is fixedly connected to the outside of the rotating shaft two (24).

5. The coil-type cold explosion-proof sulfur pulverizing device according to claim 1, characterized in that: The grinding chamber (4) is fixedly connected to the top of the frame (1), and the stirring rod (9) is rotatably connected to the inside of the grinding chamber (4).

6. The coil-type cold explosion-proof sulfur pulverizing device according to claim 2, characterized in that: Specifically, a pair of gears (13) are provided, and the pair of gears (13) mesh with each other.

7. The coil-type cold explosion-proof sulfur pulverizing device according to claim 1, characterized in that: The pretreatment chamber (2) and the crushing chamber (4) are connected by the connecting pipe (3), and the coil body (10) is fixedly connected to the outside of the cooling water tank (21).

8. The coil-type cold explosion-proof sulfur pulverizing device according to claim 4, characterized in that: The auger (25) is rotatably connected inside the delivery pipe (5).

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