High-performance flame retardant chlorinated paraffin product storage tank

Abstract

The utility model relates to a high -performance chlorinated paraffin product storage tank for flame retardant, the tank body top of storage tank is fixed with elevating system, is provided with cleaning mechanism in tank body interior, cleaning mechanism includes elevating lever, rotating mechanism and high -pressure water gun, can make the cleaning liquid that elevating lever end injectes with the rotation of cleaning rod from the small hole of the chamber formed by the first casing, second casing and hollow design of elevating lever and sprays and cleans tank body interior, the cleaning liquid can cool down on one side during the cleaning process, on the other hand can neutralize the HCl that chlorinated paraffin decomposes, the cleaning step uses the cleaning liquid to clean elevating lever, chamber, cleaning rod and tank body interior, ensures that there is no chemical residue, finally again blows into the air, can ensure internal dry, under the condition of not opening the storage tank, the residual chlorinated paraffin in the storage tank is completely cleaned.

Description

Technical Field

[0001] This utility model belongs to the field of storage tank technology, specifically relating to a high-performance chlorinated paraffin storage tank for flame retardants. Background Technology

[0002] Chlorinated paraffin is an important chemical product, belonging to the derivatives of paraffin hydrocarbons after chlorination. Due to its flame retardancy, electrical insulation, low volatility, and relatively low cost, it is widely used in many industrial fields. Chlorinated paraffin itself is not flammable, but it decomposes at its decomposition temperature (approximately 120°C, -42°C) to release toxic and corrosive gases such as hydrogen chloride (HCl). Therefore, the storage of chlorinated paraffin requires strict airtightness and explosion-proof measures; improper handling can cause harm to personnel and the environment. Due to production needs, the same storage tanks may be used to store chlorinated paraffin with different chlorine contents (mass fraction of chlorine). To prevent residual chlorinated paraffin from the previous batch from contaminating the next batch with different chlorine contents, the storage tanks need to be thoroughly cleaned.

[0003] Existing scraping methods have certain drawbacks. Using a scraper to remove residual chlorinated paraffin from storage tanks can cause localized high temperatures due to friction between the scraper and the tank's inner wall, potentially leading to the decomposition of the chlorinated paraffin and posing a risk to human health and environmental pollution. Therefore, there is an urgent need to design a more efficient and safer method for cleaning chlorinated paraffin residue from storage tanks. Utility Model Content

[0004] In view of the above situation, this utility model provides a high-performance chlorinated paraffin finished product storage tank for flame retardants, which can automatically and completely clean the inside of the storage tank, reduce the risk during storage tank handling, and facilitate the use of the same storage tank to store chlorinated paraffins with different chlorine contents in batches.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A storage tank for chlorinated paraffin as a high-performance flame retardant includes a tank body, and a lifting mechanism is fixed to the top of the tank body; a cleaning mechanism is provided inside the tank body, and the cleaning mechanism includes a lifting rod, a rotating mechanism and a high-pressure water gun; The rotating mechanism is rotatably connected to the lifting rod, the lifting rod is slidably connected to the lifting mechanism, and the rotating mechanism is fixedly connected to the high-pressure water gun. The lifting rod is hollow inside, and an opening is provided at the end away from the rotating mechanism. The opening can be used to access the cleaning fluid, which is injected into the cleaning mechanism through the inside of the lifting rod.

[0006] Furthermore, the rotating mechanism includes a first housing and a second housing. The second housing is located inside the first housing, and a servo motor is disposed inside the second housing. The servo motor is fixedly connected to the second housing via a servo motor output shaft. The servo motor housing is fixedly connected to a lifting rod. The second housing is fixedly connected to the first housing. The cavity formed between the first housing and the second housing can contain cleaning fluid. The lifting rod is rotatably connected to both the first housing and the second housing to ensure that the lifting rod does not rotate when the first housing and the second housing are rotated by the servo motor.

[0007] Furthermore, the lifting rod between the first housing and the second housing is provided with a hole, which allows the cleaning fluid to enter the chamber and the cleaning rod.

[0008] Furthermore, a cleaning rod is provided between the rotating mechanism and the high-pressure water gun, the rotating mechanism is fixedly connected to the cleaning rod, and the end of the cleaning rod away from the rotating mechanism is fixedly connected to the high-pressure water gun.

[0009] Furthermore, the cleaning rod is hollow inside and communicates with the inside of the first housing. Several small holes are provided at the end of the cleaning rod near the high-pressure water gun, so that the cleaning liquid inside the cleaning rod is thrown out through the small holes during the rotation of the cleaning rod.

[0010] Furthermore, the top of the tank is provided with a feeding port and an exhaust port, and the bottom of the tank is provided with a discharge port.

[0011] Furthermore, a first valve is provided between the feeding port and the tank body, a second valve is provided between the exhaust port and the tank body, and a third valve is provided between the discharge port and the tank body to ensure the airtightness of the tank body.

[0012] This utility model also includes other components that enable its normal use, all of which are conventional means in the field. In addition, devices or components not limited in this utility model, such as servo motors and valves, all adopt existing technologies in the field.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a high-performance flame retardant chlorinated paraffin finished product storage tank. The cleaning mechanism is driven to rotate by a servo motor. Combined with the hollow design of the lifting rod and the cavity formed by the first shell and the second shell, the cleaning liquid injected at the end of the lifting rod can be thrown out through the small hole of the cleaning rod to spray and clean the inside of the tank. The cleaning liquid can cool down the cleaning process on the one hand, and neutralize the HCl gas decomposed by chlorinated paraffin on the other hand. The cleaning process involves using cleaning fluid sequentially to ensure that there are no chemical residues in the lifting rod, chamber, cleaning rod, and inside the tank. Finally, air is blown in to ensure that the inside is dry. Therefore, this invention can thoroughly clean the residual chlorinated paraffin inside the storage tank without opening it. Attached Figure Description

[0014] Figure 1 This is a frontal view structural schematic diagram of the chlorinated paraffin finished product storage tank for high-performance flame retardants according to this utility model. Figure 2 This is a front view structural schematic diagram of the cleaning mechanism of the chlorinated paraffin finished product storage tank for high-performance flame retardants of this utility model. Figure 3 This is a front view structural schematic diagram of the rotating mechanism of the high-performance flame retardant chlorinated paraffin finished product storage tank of this utility model. Figure 4 This is a front view structural schematic diagram of the lifting mechanism of the high-performance flame retardant chlorinated paraffin finished product storage tank of this utility model.

[0015] The components are as follows: 1. Lifting rod; 2. Lifting mechanism; 3. Cleaning mechanism; 4. Feeding port; 5. First valve; 6. Exhaust port; 7. Second valve; 8. Discharge port; 9. Third valve; 10. First sealing ring; 21. Rack; 22. Gear; 31. Second sealing ring; 32. First bearing; 33. Hole; 34. Third sealing ring; 35. Second bearing; 36. Cleaning rod; 37. High-pressure water gun; 38. Rotating mechanism; 381. First housing; 382. Chamber; 383. Second housing; 384. Servo motor; 385. Servo motor output shaft; 386. Connecting rod. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0017] It should be noted that the terms "upper", "lower", "front", "back", "inner", and "outer" are used to indicate directions or positional relationships based on the attached drawings and are for ease of description only.

[0018] Example like Figure 1-4 As shown, a high-performance flame retardant chlorinated paraffin finished product storage tank includes a tank body, and a lifting mechanism 2 is fixed on the top of the tank body; a cleaning mechanism 3 is provided inside the tank body, and the cleaning mechanism 3 includes a lifting rod 1, a rotating mechanism 38 and a high-pressure water gun 37; wherein the rotating mechanism 38 is rotatably connected to the lifting rod 1, the lifting rod 1 is slidably connected to the lifting mechanism 2, the rotating mechanism 38 is fixedly connected to the high-pressure water gun 37; and the lifting rod 1 is slidably connected to the tank body.

[0019] The lifting rod 1 is hollow inside, and an opening is provided at one end away from the rotating mechanism 38. The opening can be used to access the cleaning fluid, which can be injected into the cleaning mechanism 3 through the lifting rod 1.

[0020] The lifting mechanism 2 includes a drive motor, a gear 22 is provided on the output shaft of the drive motor, and a rack 21 that meshes with the gear 22 is provided on the outside of the lifting rod 1 so that the gear 22 can drive the lifting rod 1 to rise and fall; the connection between the lifting rod 1 and the tank body is sealed with a first sealing ring 10.

[0021] The rotating mechanism 38 includes a first housing 381 and a second housing 383. The second housing 383 is located within the first housing 381, and a chamber 382 formed between the first housing 381 and the second housing 383 can contain cleaning fluid. A servo motor 384 is installed inside the second housing 383, and the output shaft 385 of the servo motor is on the axial extension line of the lifting rod 1. The output shaft 385 of the servo motor is fixedly connected to the second housing 383, and the second housing 383 is fixedly connected to the first housing 381 via a connecting rod 386, so that the servo motor 384 drives the second housing 383 and the first housing 381 to rotate around the lifting rod 1. The lifting rod 1 is rotatably connected to the first housing 381 via a first bearing 32, and the lifting rod 1 is rotatably connected to the second housing 383 via a second bearing 35, thereby ensuring that when the first housing 381 and the second housing 383 are rotated by the servo motor 384, the lifting rod 1 does not rotate. To address the power supply and control issues of the servo motor 384, the wires of the servo motor 384 are connected through the inside of the lifting rod 1, and the outside of the wires is wrapped with a material to prevent corrosion by the cleaning fluid, preferably polyethylene (PE). The connection between the lifting rod 1 and the first housing 381 is sealed by a second sealing ring 31, and the connection between the lifting rod 1 and the second housing 383 is also sealed by a second sealing ring 31, allowing only the wires to enter the interior of the second housing 383, thus preventing the cleaning fluid from entering the second housing 383 and damaging the servo motor 384. The first sealing ring 10, the second sealing ring 31, and the third sealing ring 34 are also made of a corrosive material, preferably polyethylene.

[0022] A cleaning rod 36 is also provided between the rotating mechanism 38 and the high-pressure water gun 37. The rotating mechanism 38 and the cleaning rod 36 are fixedly connected. The end of the cleaning rod 36 away from the rotating mechanism 38 is fixedly connected to the high-pressure water gun 37. Furthermore, the part of the lifting rod 1 in the chamber 382 is provided with a hole 33, which allows the cleaning liquid or gas in the lifting rod 1 to enter the chamber 382 and then enter the cleaning rod 36. Based on this, the cleaning rod 36 is hollow inside and has several small holes near the end of the high-pressure water gun 37, so that the cleaning liquid inside the cleaning rod 36 is thrown out through the small holes during the rotation of the cleaning rod 36.

[0023] Furthermore, the top of the tank is provided with a feeding port 4 and an exhaust port 6, and the bottom of the tank is provided with a discharge port 8. The feeding port 4 is used to add chlorinated paraffin into the tank during use, the exhaust port 6 is used to discharge waste gas during the cleaning process for subsequent harmless treatment, and the discharge port 8 is used to take chlorinated paraffin and discharge cleaning liquid and other waste materials during the cleaning process for subsequent harmless treatment. A first valve 5 is provided between the feeding port 4 and the tank, a second valve 7 is provided between the exhaust port 6 and the tank, and a third valve 9 is provided between the discharge port 8 and the tank, which can ensure the airtightness of the tank and prevent the leakage of HCl gas and other harmful substances.

[0024] The tank can be cone-shaped, but in this embodiment it is cylindrical. The material is a high-strength metal, preferably carbon steel, to withstand the enormous pressure generated by accidental decomposition. The inner wall of the tank is also coated with an acid and alkali resistant material. The cleaning fluid is clean water at 50-60°C. The main materials of the lifting rod 1, the first housing 381, the second housing 383, the first bearing 32, the second bearing 35, and the cleaning rod 36 are the same as those of the tank body, and the contact surfaces with the cleaning liquid are all coated with a corrosion-resistant coating, preferably PE; the high-pressure water gun 37 is made of plastic, and in this embodiment, PP is preferred.

[0025] The working principle of this utility model is as follows: S1. Open the third valve 9 to discharge the chlorinated paraffin from the tank; S2. Cleaning fluid is introduced into the opening and continuously injected into the cavity 382 formed by the first housing 381 and the second housing 383 and the cleaning rod 36 through the internal channel of the lifting rod 1 and the hole 33 at the end. S3. Start the servo motor 384 and the lifting mechanism 2 in sequence. The cleaning mechanism 3 will repeatedly clean the inner wall of the tank under the drive of the rotating mechanism 38 and the lifting mechanism 2. S4. Detect and harmlessly treat the liquid discharged from the outlet 8 until the cleaning liquid discharged from the outlet 8 is exactly the same as the cleaning liquid injected into the opening. The cleaning mechanism continues to clean the inner wall of the tank repeatedly up and down under the drive of the rotating mechanism 38 and the lifting mechanism 2 until the clean water discharged from the outlet 8 is neutral. Then, turn off the servo motor 384. S5. Close the first valve 5 and the third valve 9, open the second valve 7, connect the blower to the opening, and detect and treat the discharged gas until it meets the emission standards.

[0026] The technical solution of this utility model is not limited to the specific embodiments described above. Without departing from the scope and spirit of the described embodiments, many modifications and changes will be obvious to those skilled in the art. Any technical modifications made within the spirit and principles of this utility model shall fall within the protection scope of this utility model.

Claims

1. A storage tank for chlorinated paraffin as a high-performance flame retardant, comprising a tank body, characterized in that: The top of the tank is also equipped with a lifting mechanism; the inside of the tank is equipped with a cleaning mechanism, which includes a lifting rod, a rotating mechanism and a high-pressure water gun; the rotating mechanism is rotatably connected to the lifting rod, the lifting rod is slidably connected to the lifting mechanism, and the rotating mechanism is fixedly connected to the high-pressure water gun; the lifting rod is hollow inside and has an opening at the end away from the rotating mechanism.

2. The high-performance flame retardant chlorinated paraffin finished product storage tank according to claim 1, characterized in that: The rotating mechanism includes a first housing and a second housing. The second housing is located inside the first housing. A servo motor is installed inside the second housing. The servo motor is fixedly connected to the second housing via a servo motor output shaft. The outer shell of the servo motor is fixedly connected to a lifting rod. The second housing is fixedly connected to the first housing. The lifting rod is rotatably connected to both the first housing and the second housing.

3. The high-performance flame retardant chlorinated paraffin finished product storage tank according to claim 2, characterized in that: The lifting rod between the first housing and the second housing has a hole.

4. The high-performance flame retardant chlorinated paraffin finished product storage tank according to claim 2, characterized in that: A cleaning rod is provided between the rotating mechanism and the high-pressure water gun. The rotating mechanism is fixedly connected to the cleaning rod, and the end of the cleaning rod away from the rotating mechanism is fixedly connected to the high-pressure water gun.

5. The high-performance flame retardant chlorinated paraffin finished product storage tank according to claim 4, characterized in that: The cleaning rod is hollow inside and communicates with the inside of the first housing. Several small holes are opened at the end of the cleaning rod near the high-pressure water gun.

6. The high-performance flame retardant chlorinated paraffin finished product storage tank according to claim 1, characterized in that: The top of the tank is provided with a feeding port and an exhaust port, and the bottom of the tank is provided with a discharge port.

7. The high-performance flame retardant chlorinated paraffin finished product storage tank according to claim 6, characterized in that: A first valve is provided between the feeding port and the tank body, a second valve is provided between the exhaust port and the tank body, and a third valve is provided between the discharge port and the tank body.

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