A finished product rapid cooling device for producing diafenthiuron technical

Abstract

The utility model discloses a kind of finished product rapid cooling device for buthion urea technical production, it is related to general physical or chemical method or device technical field.The finished product rapid cooling device for buthion urea technical production, including cooling tank body, the upper side of the cooling tank body is fixedly connected with tank cover, the lower side of cooling tank body is fixedly connected with support leg, the upper side of tank cover is fixedly connected with feed pipe, feed pipe is L-shaped structure, the rear end of feed pipe is connected with buthion urea concentration kettle export, the lower side of cooling tank body is fixedly connected with discharge pipe, discharge pipe and feed pipe are all connected with the inside of cooling tank body, cooling jacket is fixedly sleeved on the outer surface of cooling tank body, stirring mechanism is installed in the inside of cooling tank body, inner wall scraper block can scrape the crystallization adhered on the inner wall of cooling tank body in stirring process, avoid crystallization accumulation on the inner wall of device, avoid the influence of cooling effect of cooling device, also ensure the purity of product.

Description

Technical Field

[0001] This utility model relates to the field of general physical or chemical methods or apparatus technology, specifically to a rapid cooling device for the production of butyl urea technical. Background Technology

[0002] Butyl ether urea technical grade is a highly effective thiourea insecticide and acaricide. It works by inhibiting the activity of acetylcholinesterase in pests, interfering with nerve conduction, and disrupting chitin synthesis, leading to paralysis and death of the pests. Under ultraviolet irradiation, it decomposes into carbodiimide, enhancing its insecticidal effect. The rapid cooling device for the finished product in the production of butyl ether urea technical grade is a key piece of equipment designed specifically for the crystallization process of butyl ether urea. It is used to rapidly reduce the material temperature in the post-synthesis stage, promoting crystal formation and controlling crystal quality. During the cooling process, due to temperature gradient changes and material characteristics, butyl urea technical grade is prone to crystallization and gradual accumulation on the inner wall of the cooling tank. The accumulated crystals form a heat insulation layer on the inner wall of the tank, which severely hinders heat exchange between the cooling jacket and the technical grade inside the tank. This leads to a significant decrease in the cooling rate of the technical grade, which not only prolongs the production cycle but may also cause differences in crystal particle size due to uneven local temperature inside the tank, further affecting the stability of product quality. When the crystals accumulate to a certain extent, the machine needs to be stopped for manual cleaning, which interrupts the continuous production process and increases the labor maintenance cost. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a rapid cooling device for the production of butyl urea technical, which has an inner wall scraper that can scrape the crystals attached to the inner wall of the cooling tank during the stirring process, so as to avoid the accumulation of crystals on the inner wall of the device, avoid affecting the cooling effect of the cooling device, and at the same time ensure the purity of the product.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling device for the production of butyl urea technical, comprising a cooling tank, a tank cover fixedly connected to the upper side of the cooling tank, a support leg fixedly connected to the lower side of the cooling tank, and a feed pipe fixedly connected to the upper side of the tank cover; The feed pipe has an L-shaped structure, and the rear end of the feed pipe is connected to the outlet of the butyl ether urea concentration kettle. The discharge pipe is fixedly connected to the lower side of the cooling tank. Both the discharge pipe and the feed pipe are connected to the interior of the cooling tank. The interior of the cooling tank is equipped with a stirring mechanism that can stir the cooled butyl urea technical material to rapidly cool and crystallize it. At the same time, the stirring mechanism can also clean the crystals adhering to the inner wall of the cooling tank. The stirring mechanism includes a stirring shaft, a motor assembly, stirring blades, two inner wall scrapers, four first connecting rods, four second connecting rods, four limiting grooves, four limiting sliders, and four sets of springs.

[0005] Preferably, a cooling jacket is fixedly sleeved on the outer surface of the cooling tank, and a refrigerant addition pipe is fixedly connected to the rear side of the cooling jacket; A refrigerant discharge pipe is fixedly connected to the front side of the cooling jacket, and both the refrigerant discharge pipe and the refrigerant charging pipe are connected to the interior of the cooling jacket.

[0006] Preferably, a solvent adding pipe is fixedly connected to the upper side of the can lid. The solvent adding pipe has an L-shaped structure, and a recovery tank is installed on the right side of the cooling tank. A condenser pipe is fixedly connected between the can lid and the recovery tank. Both the solvent addition pipe and the condenser pipe are connected to the interior of the cooling tank. The condenser pipe is also connected to the interior of the recovery tank.

[0007] Preferably, the stirring shaft is installed inside the cooling tank, the motor assembly is fixedly connected to the upper side of the tank cover, and the output shaft of the motor assembly extends rotatably into the interior of the cooling tank; The lower end of the motor assembly output shaft is fixedly connected to the stirring shaft, the stirring blades are fixedly connected to the outer surface of the stirring shaft, and the two inner wall scrapers are installed inside the cooling tank.

[0008] Preferably, the two inner wall scrapers are arranged symmetrically front to back, and the side of the two inner wall scrapers that is far apart from each other can fit against the inner wall of the cooling tank. The four first connecting rods are respectively fixedly connected to the front and rear sides of the outer surface of the stirring shaft. The four first connecting rods are arranged in a rectangular array, and the four first connecting rods are respectively located on the upper and lower sides of the stirring blade. The four second connecting rods are respectively fixedly connected to the opposite surfaces of the two inner wall scrapers.

[0009] Preferably, the opposite ends of the four second connecting rods slide into the interior of the four first connecting rods, and the four limiting grooves are respectively opened inside the four first connecting rods; The four limiting sliders are slidably connected inside the four limiting grooves respectively, and the opposite ends of the four second connecting rods are fixedly connected to the four limiting sliders respectively; Four sets of springs are fixedly connected to the opposite surfaces of the four limit sliders, and the opposite ends of the four sets of springs are fixedly connected to the inner walls of the four limit slides.

[0010] Preferably, the left and right sides of the two inner wall scrapers are replaced with inclined surfaces instead of flat surfaces.

[0011] Compared with the prior art, the beneficial effects of this utility model are: (1) The rapid cooling device for the production of butyl urea technical material has an inner wall scraper that can scrape the crystals attached to the inner wall of the cooling tank during the stirring process, thus avoiding the accumulation of crystals on the inner wall of the device and preventing the cooling effect of the cooling device from being affected, while also ensuring the purity of the product.

[0012] (2) When the inner wall scraper is worn due to the crystallization caused by the scraping of the inner wall scraper, the spring will push the limiting slider due to its own elasticity. The limiting slider will drive the second connecting rod to move, so that the inner wall scraper can always be tightly attached to the inner wall of the cooling tank. There is no need to frequently manually adjust the position of the inner wall scraper or replace the scraper, which reduces the downtime of the equipment and improves the operational stability and reliability of the equipment. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of a rapid cooling device for the production of butyl urea technical grade according to this utility model; Figure 2 This is a schematic diagram of the connection structure at the rear of the cooling tank of this utility model; Figure 3 This is a schematic diagram of the cross-sectional connection structure of the cooling tank body of this utility model; Figure 4 This is a cross-sectional connection structure diagram of the first connecting rod on the front side of this utility model; Figure 5 This is a schematic diagram of the connection structure of the inner wall scraper of this utility model.

[0014] Reference numerals in the attached drawings: 1. Cooling tank body; 2. Tank cover; 3. Support leg; 4. Feed pipe; 5. Discharge pipe; 6. Cooling jacket; 7. Refrigerant addition pipe; 8. Refrigerant discharge pipe; 9. Solvent addition pipe; 10. Condenser pipe; 11. Recovery tank; 12. Stirring shaft; 13. Motor assembly; 14. Stirring blades; 15. Inner wall scraper; 16. First connecting rod; 17. Second connecting rod; 18. Limiting groove; 19. Limiting slider; 20. Spring. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0018] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0019] Please see Figure 1-5 This utility model provides a new technical solution: a rapid cooling device for the production of butyl urea technical, including a cooling tank 1: serving as the core container of the entire device, providing a closed space for the cooling and crystallization process of butyl urea technical.

[0020] Can lid 2: It is fixedly connected to the upper side of the cooling tank 1, which serves to seal the cooling tank 1, and at the same time provides an installation position for components such as feed pipe 4, solvent addition pipe 9, motor assembly 13 and condenser pipe 10.

[0021] Support leg 3: It is fixedly connected to the lower side of the cooling tank 1 to support the entire cooling device and make it stable.

[0022] Feed pipe 4: It has an L-shaped structure, with its rear end connected to the outlet of the butyl urea concentration kettle and its front end connected to the interior of the cooling tank 1. The function of feed pipe 4 is to transport the butyl urea raw material in the butyl urea concentration kettle to the cooling tank 1 to start the cooling and crystallization process.

[0023] Discharge pipe 5: It is fixedly connected to the lower side of the cooling tank 1 and communicates with the inside of the cooling tank 1. After the butyl urea technical material is cooled and crystallized in the cooling tank 1, the cooling tank 1 discharges the finished product through the discharge pipe 5.

[0024] Cooling jacket 6: It is fixedly sleeved on the outer surface of the cooling tank 1, and refrigerant can be introduced into it. Its function is to cool the butyl urea technical material in the cooling tank 1 by exchanging heat between the refrigerant and the butyl urea technical material in the cooling tank 1.

[0025] Refrigerant charging pipe 7: Fixedly connected to the rear side of cooling jacket 6 and communicating with the inside of cooling jacket 6. Used to add refrigerant into cooling jacket 6 to start the cooling process.

[0026] Refrigerant discharge pipe 8: It is fixedly connected to the front side of the cooling jacket 6 and communicates with the inside of the cooling jacket 6. After the refrigerant absorbs heat in the cooling jacket 6, the heated refrigerant will be discharged through the refrigerant discharge pipe 8 to realize the circulation of refrigerant.

[0027] Solvent adding tube 9: It has an L-shaped structure and is fixedly connected to the upper side of the can lid 2. It is connected to the inside of the cooling tank 1. The function of solvent adding tube 9 is to add solvent into the cooling tank 1. Some of the solvent will evaporate during the cooling process.

[0028] Condenser 10: Connected between the tank cover 2 and the recovery tank 11, and connected to the interior of the cooling tank 1 and the recovery tank 11. The evaporated solvent vapor enters the recovery tank 11 through the condenser 10 to realize the recovery and utilization of the solvent.

[0029] Recovery tank 11: Installed on the right side of cooling tank 1, used to collect the solvent recovered through condenser pipe 10.

[0030] Stirring shaft 12: Installed inside the cooling tank 1, it is the core component of the stirring mechanism. Driven by the motor assembly 13, it rotates to provide rotational power for the stirring blades 14, the first connecting rod 16, etc.

[0031] Motor assembly 13: It is fixedly connected to the upper side of the tank cover 2. Its output shaft extends into the interior of the cooling tank 1 and is fixedly connected to the stirring shaft 12. After the motor assembly 13 is started, it drives the stirring shaft 12 to rotate, thereby driving the entire stirring mechanism to work.

[0032] Stirring blade 14: It is fixedly connected to the outer surface of the stirring shaft 12 and rotates with the rotation of the stirring shaft 12. Its function is to stir the butyl urea technical material in the cooling tank 1, so that the butyl urea technical material is cooled evenly and the cooling crystallization speed is accelerated.

[0033] Inner wall scraper 15: Two inner wall scrapers 15 are installed inside the cooling tank 1, arranged symmetrically front and back, with the side furthest from each other able to fit against the inner wall of the cooling tank 1. During the stirring process, the inner wall scraper 15 scrapes away the crystals attached to the inner wall of the cooling tank 1, preventing the crystals from accumulating on the inner wall of the cooling tank 1 and affecting the cooling effect and product quality. During the scraping process, the inner wall scraper 15 will wear out.

[0034] First connecting rod 16: Four first connecting rods 16 are fixedly connected to the front and rear sides of the outer surface of the stirring shaft 12, arranged in a rectangular array, and respectively set on the upper and lower sides of the stirring blade 14. The first connecting rods 16 serve to connect the stirring shaft 12 and the second connecting rod 17, and transmit the rotation of the stirring shaft 12 to the second connecting rod 17 through the first connecting rods 16.

[0035] Second connecting rod 17: Four second connecting rods 17 are fixedly connected to the opposite surfaces of two inner wall scrapers 15 respectively, and their opposite ends slide into the interior of four first connecting rods 16 respectively. The second connecting rods 17 transmit the rotation of the first connecting rods 16 to the inner wall scrapers 15. At the same time, the second connecting rods 17 can slide back and forth inside the first connecting rods 16. The second connecting rods 17 cooperate with the spring 20 to realize the position adjustment of the inner wall scrapers 15.

[0036] Limiting groove 18: Four limiting grooves 18 are respectively opened inside the four first connecting rods 16 to provide sliding tracks for the limiting slider 19 and limit the sliding direction of the limiting slider 19.

[0037] Limiting sliders 19: Four limiting sliders 19 are slidably connected inside four limiting grooves 18 respectively, and the opposite ends of four second connecting rods 17 are fixedly connected to the four limiting sliders 19 respectively. The limiting sliders 19 slide in the limiting grooves 18, driving the second connecting rods 17 to move, thereby adjusting the position of the inner wall scraper 15.

[0038] Spring 20: Four sets of springs 20 are fixedly connected to the opposite surfaces of the four limiting sliders 19, and the opposite ends are fixedly connected to the inner walls of the four limiting grooves 18. When the inner wall scraper 15 is worn due to scraping crystals, the spring 20 will push the limiting slider 19 due to its own elasticity. The limiting slider 19 drives the second connecting rod 17 to move, and the second connecting rod 17 drives the inner wall scraper 15 to move, so that the two inner wall scrapers 15 can always be tightly attached to the inner wall of the cooling tank 1, ensuring effective cleaning of the inner wall crystals.

[0039] Furthermore, the butyl urea technical material in the butyl urea concentration kettle enters the cooling tank 1 through the feed pipe 4. The refrigerant enters the cooling jacket 6 through the refrigerant addition pipe 7. The refrigerant flows in the cooling jacket 6, absorbing the heat of the butyl urea technical material in the cooling tank 1, and then exits through the refrigerant discharge pipe 8, realizing the circulation of the refrigerant. This is used to cool the butyl urea technical material in the cooling tank 1. The methanol solvent enters the cooling tank 1 through the solvent addition pipe 9. During the cooling process, the methanol solvent will evaporate. The evaporated solvent vapor enters the recovery tank 11 through the condenser pipe 10 for recovery. The condenser pipe 10 connects the tank cover 2 and the recovery tank 11 and is connected to the interior of both.

[0040] The motor assembly 13 is fixed on the upper side of the tank cover 2. Its output shaft extends into the interior of the cooling tank 1 and is fixedly connected to the stirring shaft 12. After the motor assembly 13 is started, it drives the stirring shaft 12 to rotate. The stirring blades 14 on the stirring shaft 12 rotate accordingly to stir the butyl urea technical in the cooling tank 1, so that it cools and crystallizes quickly. At the same time, the rotation of the stirring shaft 12 drives the four first connecting rods 16 to rotate. The four first connecting rods 16 drive the four second connecting rods 17 to rotate respectively. The four second connecting rods 17 drive the two inner wall scrapers 15 to rotate synchronously, thereby scraping and cleaning the crystals attached to the inner wall of the cooling tank 1. After cooling and crystallization are completed, the finished butyl urea technical is discharged from the cooling tank 1 through the discharge pipe 5.

[0041] During the process of scraping the crystals on the inner wall of the cooling tank 1, the inner wall scraper 15 will wear. At this time, since the opposite ends of the four second connecting rods 17 slide into the four first connecting rods 16 respectively, and the opposite ends of the four second connecting rods 17 are fixedly connected to the four limiting sliders 19 respectively, the four sets of springs 20 will push the limiting sliders 19 due to their own elasticity. The limiting sliders 19 drive the second connecting rods 17 to move, and the second connecting rods 17 drive the inner wall scraper 15 to move, so that the two inner wall scrapers 15 can always be tightly attached to the inner wall of the cooling tank 1, thereby continuously and effectively cleaning the crystals attached to the inner wall of the cooling tank 1.

[0042] Example: Sloping inner wall scrapers on both the left and right sides Please see Figure 5 The original inner wall scraper 15, which has flat left and right sides, is replaced with an inner wall scraper 15 that is inclined on both left and right sides.

[0043] After replacing the inner wall scrapers 15 with inclined inner wall scrapers on both sides, the motor assembly 13 starts and drives the stirring shaft 12 to rotate. The stirring shaft 12 drives the inclined inner wall scrapers 15 to rotate synchronously through the first connecting rod 16 and the second connecting rod 17. At this time, the arc-shaped surface of the inner wall scraper 15 is always in close contact with the inner wall of the cooling tank 1, scraping off the crystals attached to the inner wall of the cooling tank 1. During the scraping process, if any small crystals come into contact with the inclined surfaces of the inner wall scraper 15, they will slide away from the inner wall scraper 15 along the inclined surface under the action of centrifugal force generated by the stirring rotation, and finally fall into the butyl urea raw material at the bottom of the cooling tank 1.

[0044] This reduces the amount of crystals adhering to the surface of the inner wall scraper 15, eliminating the need for frequent shutdowns to disassemble and clean the inner wall scraper 15, saving maintenance time, avoiding uneven stress on the stirring shaft 12 caused by crystals adhering to the surface of the inner wall scraper 15, effectively reducing the load pressure on the motor assembly 13, reducing the risk of motor failure, and ensuring that the scraped crystals can fall smoothly into the raw material in the cooling tank 1, without affecting the stability of the subsequent cooling and crystallization process due to accumulation on the scraper, thus ensuring uniform quality of the finished product.

[0045] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rapid cooling device for the production of butyl urea technical grade, comprising a cooling tank (1), a tank cover (2) fixedly connected to the upper side of the cooling tank (1), a support leg (3) fixedly connected to the lower side of the cooling tank (1), and a feed pipe (4) fixedly connected to the upper side of the tank cover (2). The feed pipe (4) has an L-shaped structure. The rear end of the feed pipe (4) is connected to the outlet of the butyl ether urea concentration kettle. The discharge pipe (5) is fixedly connected to the lower side of the cooling tank (1). Both the discharge pipe (5) and the feed pipe (4) are connected to the interior of the cooling tank (1), characterized in that: The cooling tank (1) is equipped with a stirring mechanism. The stirring mechanism can stir the cooled butyl urea technical material to make it cool and crystallize quickly. At the same time, the stirring mechanism can also clean the crystals attached to the inner wall of the cooling tank (1). The stirring mechanism includes a stirring shaft (12), a motor assembly (13), stirring blades (14), two inner wall scrapers (15), four first connecting rods (16), four second connecting rods (17), four limiting grooves (18), four limiting sliders (19), and four sets of springs (20).

2. The rapid cooling device for the production of butyl urea technical grade according to claim 1, characterized in that: A cooling jacket (6) is fixedly sleeved on the outer surface of the cooling tank (1), and a refrigerant adding pipe (7) is fixedly connected to the rear side of the cooling jacket (6). A refrigerant discharge pipe (8) is fixedly connected to the front side of the cooling jacket (6). Both the refrigerant discharge pipe (8) and the refrigerant addition pipe (7) are connected to the interior of the cooling jacket (6).

3. The rapid cooling device for the production of butyl urea technical grade according to claim 1, characterized in that: A solvent adding tube (9) is fixedly connected to the upper side of the can lid (2). The solvent adding tube (9) has an L-shaped structure. A recovery tank (11) is installed on the right side of the cooling tank (1). A condenser pipe (10) is fixedly connected between the can lid (2) and the recovery tank (11). The solvent addition pipe (9) and the condenser pipe (10) are both connected to the interior of the cooling tank (1). The condenser pipe (10) is also connected to the interior of the recovery tank (11).

4. The rapid cooling device for the production of butyl urea technical grade according to claim 1, characterized in that: The stirring shaft (12) is installed inside the cooling tank (1), and the motor assembly (13) is fixedly connected to the upper side of the tank cover (2). The output shaft of the motor assembly (13) extends into the interior of the cooling tank (1). The lower end of the output shaft of the motor assembly (13) is fixedly connected to the stirring shaft (12), the stirring blade (14) is fixedly connected to the outer surface of the stirring shaft (12), and the two inner wall scrapers (15) are installed inside the cooling tank (1).

5. A rapid cooling device for the production of butyl urea technical grade according to claim 4, characterized in that: The two inner wall scrapers (15) are arranged symmetrically in front and behind. The side of the two inner wall scrapers (15) that is far away from each other can fit against the inner wall of the cooling tank (1). The four first connecting rods (16) are respectively fixedly connected to the front and rear sides of the outer surface of the stirring shaft (12). The four first connecting rods (16) are arranged in a rectangular array. The four first connecting rods (16) are respectively located on the upper and lower sides of the stirring blade (14), and the four second connecting rods (17) are respectively fixedly connected to the opposite surfaces of the two inner wall scrapers (15).

6. The rapid cooling device for the production of butyl urea technical grade according to claim 5, characterized in that: The opposite ends of the four second connecting rods (17) slide into the interior of the four first connecting rods (16), and the four limiting grooves (18) are respectively opened inside the four first connecting rods (16); The four limiting sliders (19) are slidably connected inside the four limiting grooves (18), and the opposite ends of the four second connecting rods (17) are fixedly connected to the four limiting sliders (19); Four sets of springs (20) are fixedly connected to the opposite surfaces of the four limit sliders (19), and the opposite ends of the four sets of springs (20) are fixedly connected to the inner walls of the four limit grooves (18).

7. The rapid cooling device for the production of butyl urea technical grade according to claim 4, characterized in that: The left and right sides of the two inner wall scrapers (15) are replaced from planes to inclined surfaces.

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