A drying device for preparing diafenthiuron technical material

Abstract

The application discloses a drying device for preparing buthionine, belongs to the technical field of buthionine preparation, and comprises an operating mechanism, a mixing mechanism for preparing raw materials is arranged on the operating mechanism, and a drying mechanism for drying solvents is arranged on the operating mechanism. When the lower pressing frame is pressed down, 2.6-diisopropyl-4-phenoxyphenyl isothiocyanate and toluene are mixed and then dropped into t-butylamine, and finally the three are mixed by standing, meanwhile, the intermediate product dried in the last preparation process is drawn into a crystallization box for crystallization; when the lower pressing frame is lifted up, the prepared raw materials enter a drying bottle for drying, and the buthionine prepared in the last preparation process is taken out, so that the application has high automation degree and good continuity; when the drying mechanism dries the drying bottle through a heater, the drying bottle rotates at the same time, so that the heating area is increased and uniform drying is realized.

Description

Technical Field

[0001] This invention relates to the field of butyl ether urea preparation technology, and in particular to a drying apparatus for preparing butyl ether urea technical. Background Technology

[0002] Butyl ether urea is a widely used herbicide belonging to the chlorophenoxyacetic acid class. It is mainly used in agricultural production, particularly for weed control in rice paddies. Butyl ether urea exerts its weed-control effect by interfering with the cell division and growth of weeds. Specifically, it mainly inhibits fatty acid synthesis within weeds, leading to abnormal plant growth and eventual death. Its effective range includes grasses and some broadleaf weeds. The preparation process of butyl ether urea involves mixing 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate and toluene, then adding tert-butylamine dropwise. The solvent is then dried and evaporated, followed by cooling and crystallization with methanol. Current butyl ether urea technical preparation processes are generally not fully automated, requiring manual operation at each step, resulting in low automation levels. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention adopts the following technical solution: a drying device for preparing butyl urea technical grade, comprising an operating mechanism, the operating mechanism including a base plate, a mixing mechanism for mixing raw materials and a drying mechanism for drying solvents, the mixing mechanism including a base fixedly mounted on the base plate, and the drying mechanism including a crystallization box fixedly mounted on the base plate.

[0004] Furthermore, the operating mechanism includes two columns fixedly installed on the base plate, a lower pressure frame slidably installed on the columns, a column spring provided between the lower pressure frame and the base plate, a lower pressure rod fixedly installed on the lower pressure frame, and a pressure plate and a lifting ring fixedly installed on the lower pressure frame.

[0005] Furthermore, an air pump is fixedly installed on the base plate, two air push pipes are fixedly installed on the air pump, and a pressure column is fixedly installed below the pressure frame.

[0006] When in use, press down the lower pressure frame, the column spring is compressed, the lower pressure frame descends and drives the liquid pressure plate, lifting ring and lower pressure column to descend. After the lower pressure column contacts the air pump, the lower pressure column continues to descend and compresses air into the two raw material bottles through the air pump and the air pusher tube.

[0007] Furthermore, the mixing mechanism includes a mixing and settling bottle fixedly installed on a base. The bottom of the mixing and settling bottle is provided with a lower liquid outlet, and a liquid outlet pipe is fixedly installed on the lower liquid outlet. A funnel is fixedly installed on the mixing and settling bottle, and the funnel is connected to the mixing and settling bottle through a feeding channel. Two raw material bottles are fixedly installed on the base plate. A pressing tube is fixedly installed inside the raw material bottle and is fixedly installed to the funnel. The two raw material bottles contain 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate and toluene, respectively.

[0008] Furthermore, a lifting rod is slidably installed on the mixing and settling bottle, and the lifting rod is rotatably installed with the lifting ring. An inner plug is fixedly installed on the lifting rod. When the lifting rod is not lifted, the inner plug will seal the lower liquid outlet.

[0009] Furthermore, a dropper is fixedly installed on the mixing and settling bottle, a through tube is slidably installed on the dropper, an oblique through hole is provided on the through tube, an inner spring is provided between the through tube and the dropper, and the dropper is connected to the external tert-butylamine solution.

[0010] As the pressure plate descends, it presses down the through tube, compressing the dropper. When the oblique through-hole connects with the dropper, the tert-butylamine solution enters the mixing and settling bottle through the dropper. The lifting ring descends and slides along the lifting rod, at which point the inner stopper closes the lower outlet. When gas is forced into the raw material bottle, the 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate and toluene inside are forced into the funnel through the inlet tube and enter the mixing and settling bottle through the feed channel. Subsequently, the lower pressure frame rises, causing the through tube, lifting ring, and lower pressure column to return to their initial positions. The 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate, toluene, and tert-butylamine are then mixed and settling in the mixing and settling bottle.

[0011] Furthermore, the drying mechanism includes a heater fixedly mounted on a base plate, a drying bottle rotatably mounted on the heater, a drying gear fixedly mounted on the drying bottle, a motor frame fixedly mounted on the base plate, a uniform motor fixedly mounted on the motor frame, a motor gear fixedly mounted on the motor shaft of the uniform motor, the motor gear meshing with the drying gear, a discharge pipe fixedly mounted on the base plate, the drying bottle rotatably mounted with the discharge pipe, the discharge pipe fixedly mounted with the liquid outlet pipe, a pipeline pump fixedly mounted on the discharge pipe, a solvent pipe fixedly mounted on the discharge pipe, methanol placed in the crystallization box, and a cooling pipe provided in the crystallization box.

[0012] Furthermore, the crystallization box is fixedly installed with the pipeline pump, an opening plate is rotatably installed on the crystallization box, an inner extraction basket is placed inside the crystallization box, an opening slider is slidably installed on the opening plate, a pull rod is rotatably installed on the opening slider, and the pull rod is rotatably installed with the lower pressure frame.

[0013] After the raw materials are mixed, the lower pressure frame is raised, and the lifting ring drives the lifting rod and inner plug to rise. The liquid in the mixed settling bottle enters the drying bottle through the lower liquid outlet and the liquid outlet pipe. Then the lower pressure frame is lowered, and the inner plug continues to seal the lower liquid outlet. The heater heats the liquid in the drying bottle, and the uniform motor drives the motor gear to rotate, thereby driving the drying gear and the drying bottle to rotate. The rotation of the drying bottle makes the liquid in the drying bottle more evenly heated. The solvent evaporates from the heating and is discharged from the solvent pipe for collection. When the lower pressure frame is lowered, the switch of the pipeline pump is also pressed, so that the pipeline pump draws the intermediate product in the drying bottle into the crystallization box. The intermediate product recrystallizes with methanol, and the intermediate product is cooled to -5°C through the cooling pipe in the crystallization box to obtain the final butyl urea technical grade.

[0014] When the pressure frame rises, it will also drive the pull rod to rotate, which, together with the sliding of the door slider and the door plate, will open the door plate relative to the crystallization box. At this time, the inner basket and the raw butyl urea on it can be manually removed.

[0015] The beneficial effects of the present invention compared with the prior art are: (1) When the lower pressure frame is pressed down, the operating mechanism of the present invention allows 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate and toluene to be mixed and then dripped into tert-butylamine. Finally, the three are allowed to stand and mix. At the same time, the intermediate product dried in the previous preparation process is drawn into the crystallization box for crystallization. When the lower pressure frame is lifted, the mixed raw materials are allowed to enter the drying bottle for drying, and the butyl ether urea crystallized in the previous preparation is taken out. The degree of automation is high and the continuity is good; (2) The mixing mechanism of the present invention achieves quantitative feeding of each raw material by lowering the lower pressure frame, ensuring the smooth progress of the preparation reaction; (3) When the drying mechanism of the present invention dries the drying bottle with a heater, the drying bottle rotates at the same time to increase the heating area and achieve uniform drying. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the operating mechanism of the present invention.

[0018] Figure 3 This is a schematic diagram of the hybrid mechanism structure of the present invention. Figure 1 .

[0019] Figure 4 This is a schematic diagram of the hybrid mechanism structure of the present invention. Figure 2 .

[0020] Figure 5 This is a schematic diagram of the drying mechanism of the present invention. Figure 1 .

[0021] Figure 6This is a schematic diagram of the drying mechanism of the present invention. Figure 2 .

[0022] Figure 7 This is a schematic diagram of the drying mechanism of the present invention. Figure 3 .

[0023] Reference numerals: 101-Base plate; 102-Column; 103-Column spring; 104-Lower pressure frame; 105-Lower pressure rod; 106-Liquid pressure plate; 107-Lifting ring; 108-Lower pressure column; 109-Air pump; 110-Air push tube; 201-Base; 202-Mixing and settling bottle; 203-Dropper; 204-Pass tube; 205-Inner spring; 206-Lifting rod; 207-Discharge tube; 208-Inner plug; 209-Lower outlet; 2 10-Functionbox; 211-Injection tube; 212-Raw material bottle; 213-Feed channel; 214-Slanted through hole; 301-Crystallization box; 302-Heater; 303-Drying bottle; 304-Drying gear; 305-Discharge pipe; 306-Motor frame; 307-Using motor; 308-Motor gear; 309-Pipeline pump; 310-Pull rod; 311-Door opening plate; 312-Door opening slider; 313-Inner lifting basket; 314-Solvent tube. Detailed Implementation

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0025] Example: Reference Figures 1-7 A drying apparatus for preparing butyl urea technical grade includes an operating mechanism, which includes a base plate 101. The operating mechanism is equipped with a mixing mechanism for mixing raw materials and a drying mechanism for drying solvents. The mixing mechanism includes a base 201, which is fixedly installed on the base plate 101. The drying mechanism includes a crystallization box 301, which is fixedly installed on the base plate 101.

[0026] like Figure 2 As shown, the operating mechanism includes two columns 102 fixedly installed on the base plate 101. A lower pressure frame 104 is slidably installed on the columns 102. A column spring 103 is provided between the lower pressure frame 104 and the base plate 101. A lower pressure rod 105 is fixedly installed on the lower pressure frame 104. A pressure plate 106 and a lifting ring 107 are fixedly installed on the lower pressure frame 104.

[0027] like Figure 2 As shown, an air pump 109 is fixedly installed on the base plate 101, and two air push pipes 110 are fixedly installed on the air pump 109. A pressure column 108 is fixedly installed below the pressure frame 104.

[0028] When in use, press down the lower pressure frame 104, compress the column spring 103, and the lower pressure frame 104 descends, causing the pressure plate 106, lifting ring 107 and lower pressure column 108 to descend. After the lower pressure column 108 contacts the air pump 109, the lower pressure column 108 continues to descend and compresses air into the two raw material bottles 212 through the air pump 109 and the air push pipe 110.

[0029] like Figure 3 , Figure 4 As shown, the mixing mechanism includes a mixing and settling bottle 202 fixedly installed on a base 201. The bottom of the mixing and settling bottle 202 is provided with a lower outlet 209, and an outlet pipe 207 is fixedly installed on the lower outlet 209. A funnel 210 is fixedly installed on the mixing and settling bottle 202, and the funnel 210 is connected to the mixing and settling bottle 202 through a feed channel 213. Two raw material bottles 212 are fixedly installed on the base plate 101. A press-in pipe 211 is fixedly installed inside the raw material bottle 212. The press-in pipe 211 is fixedly installed to the funnel 210. The two raw material bottles 212 are respectively filled with 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate and toluene.

[0030] like Figure 3 , Figure 4 As shown, a lifting rod 206 is slidably installed on the mixing and settling bottle 202. The lifting rod 206 is rotatably installed with the lifting ring 107. An inner plug 208 is fixedly installed on the lifting rod 206. When the lifting rod 206 is not lifted, the inner plug 208 will close the lower liquid outlet 209.

[0031] like Figure 3 , Figure 4 As shown, a dropper 203 is fixedly installed on the mixing and settling bottle 202, and a through tube 204 is slidably installed on the dropper 203. An oblique through hole 214 is provided on the through tube 204, and an inner spring 205 is provided between the through tube 204 and the dropper 203. The dropper 203 is connected to the external tert-butylamine solution.

[0032] The descending of the pressure plate 106 will press down the through tube 204, compressing the dropper 203. When the oblique through hole 214 connects with the dropper 203, the tert-butylamine solution enters the mixing and settling bottle 202 through the dropper 203. The descending lifting ring 107 will slide along the lifting rod 206. At this time, the inner plug 208 closes the lower outlet 209. When gas is forced into the raw material bottle 212, the 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate and toluene inside are forced into the funnel 210 through the pressing tube 211 and enter the mixing and settling bottle 202 through the feed channel 213. Then the lower pressure frame 104 rises, causing the through tube 204, the lifting ring 107, and the lower pressure column 108 to return to their initial positions. The 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate, toluene, and tert-butylamine are mixed and settling in the mixing and settling bottle 202.

[0033] like Figures 5-7 As shown, the drying mechanism includes a heater 302 fixedly mounted on a base plate 101, a drying bottle 303 rotatably mounted on the heater 302, a drying gear 304 fixedly mounted on the drying bottle 303, a motor frame 306 fixedly mounted on the base plate 101, a uniform motor 307 fixedly mounted on the motor frame 306, a motor gear 308 fixedly mounted on the motor shaft of the uniform motor 307, the motor gear 308 meshing with the drying gear 304, a discharge pipe 305 fixedly mounted on the base plate 101, the drying bottle 303 rotatably mounted with the discharge pipe 305, the discharge pipe 305 fixedly mounted with the liquid outlet pipe 207, a pipeline pump 309 fixedly mounted on the discharge pipe 305, a solvent pipe 314 fixedly mounted on the discharge pipe 305, methanol placed in the crystallization box 301, and a cooling pipe provided in the crystallization box 301.

[0034] like Figures 5-7 As shown, the crystallization box 301 is fixedly installed with the pipeline pump 309. A door opening plate 311 is rotatably installed on the crystallization box 301. An inner lifting basket 313 is placed inside the crystallization box 301. A door opening slider 312 is slidably installed on the door opening plate 311. A pull rod 310 is rotatably installed on the door opening slider 312. The pull rod 310 is rotatably installed with the lower pressure frame 104.

[0035] After the raw materials are mixed, the lower pressure frame 104 is raised, and the lifting ring 107 drives the lifting rod 206 and the inner plug 208 to rise. The liquid in the mixing and settling bottle 202 enters the drying bottle 303 through the lower liquid outlet 209 and the liquid outlet pipe 207. Then, the lower pressure frame 104 is lowered, and the inner plug 208 continues to seal the lower liquid outlet 209. The heater 302 heats the liquid in the drying bottle 303, and the uniform motor 307 drives the motor gear 308 to rotate, thereby driving the drying gear 304. As the drying flask 303 rotates, the liquid inside the drying flask 303 is heated more evenly. The solvent evaporates during heating and is discharged from the solvent pipe 314 for collection. When the pressure rack 104 descends, the switch of the pipeline pump 309 is also pressed, causing the pipeline pump 309 to draw the intermediate product in the drying flask 303 into the crystallization box 301. The intermediate product recrystallizes with methanol, and the intermediate product is cooled to -5°C through the cooling pipe in the crystallization box 301 to obtain the final butyl urea technical grade.

[0036] When the pressure frame 104 rises, it will also drive the pull rod 310 to rotate. In conjunction with the sliding of the door opening slider 312 and the door opening plate 311, the door opening plate 311 will open relative to the crystallization box 301. At this time, the inner basket 313 and the raw butyl urea on it will be manually removed.

[0037] The working principle of the drying device for preparing butyl urea technical material disclosed in this invention is as follows: When in use, the lower pressure frame 104 is pressed down, the column spring 103 is compressed, the lower pressure frame 104 descends and drives the liquid pressure plate 106, the lifting ring 107 and the lower pressure column 108 to descend. After the lower pressure column 108 contacts the air pump 109, the lower pressure column 108 continues to descend and compresses air into the two raw material bottles 212 through the air pump 109 and the air push pipe 110. The descending of the pressure plate 106 will press down the through tube 204, compressing the dropper 203. When the oblique through hole 214 connects with the dropper 203, the tert-butylamine solution enters the mixing and settling bottle 202 through the dropper 203. The descending lifting ring 107 will slide along the lifting rod 206. At this time, the inner plug 208 closes the lower outlet 209. When gas is forced into the raw material bottle 212, the 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate and toluene inside are forced into the funnel 210 through the pressing tube 211 and enter the mixing and settling bottle 202 through the feed channel 213. Then the lower pressure frame 104 rises, causing the through tube 204, the lifting ring 107, and the lower pressure column 108 to return to their initial positions. The 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate, toluene, and tert-butylamine are mixed and settling in the mixing and settling bottle 202. After the raw materials are mixed, the lower pressure frame 104 is raised, and the lifting ring 107 drives the lifting rod 206 and the inner plug 208 to rise. The liquid in the mixing and settling bottle 202 enters the drying bottle 303 through the lower liquid outlet 209 and the liquid outlet pipe 207. Then, the lower pressure frame 104 is lowered, and the inner plug 208 continues to seal the lower liquid outlet 209. The heater 302 heats the liquid in the drying bottle 303, and the uniform motor 307 drives the motor gear 308 to rotate, thereby driving the drying gear 304. As the drying flask 303 rotates, the liquid inside the drying flask 303 is heated more evenly. The solvent evaporates during heating and is discharged from the solvent pipe 314 for collection. When the pressure rack 104 descends, the switch of the pipeline pump 309 is also pressed, causing the pipeline pump 309 to draw the intermediate product in the drying flask 303 into the crystallization box 301. The intermediate product recrystallizes with methanol, and the intermediate product is cooled to -5°C through the cooling pipe in the crystallization box 301 to obtain the final butyl urea technical grade.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A drying apparatus for preparing butyl urea technical grade, comprising an operating mechanism, characterized in that: The operating mechanism includes a base plate (101), and the operating mechanism is provided with a mixing mechanism for preparing raw materials and a drying mechanism for drying solvent. The mixing mechanism includes a base (201), which is fixedly installed on the base plate (101). The drying mechanism includes a crystallization box (301), which is fixedly installed on the base plate (101). The operating mechanism includes two columns (102) fixedly installed on the base plate (101), a lower pressure frame (104) slidably installed on the columns (102), a column spring (103) between the lower pressure frame (104) and the base plate (101), a lower pressure rod (105) fixedly installed on the lower pressure frame (104), and a pressure plate (106) and a lifting ring (107) fixedly installed on the lower pressure frame (104). The mixing mechanism includes a mixing and settling bottle (202) fixedly installed on a base (201). The bottom of the mixing and settling bottle (202) is provided with a lower outlet (209). An outlet pipe (207) is fixedly installed on the lower outlet (209). A funnel (210) is fixedly installed on the mixing and settling bottle (202). The funnel (210) is connected to the mixing and settling bottle (202) through a feed channel (213). Two raw material bottles (212) are fixedly installed on the base plate (101). A press-in pipe (211) is fixedly installed inside the raw material bottle (212). The press-in pipe (211) is fixedly installed with the funnel (210). The two raw material bottles (212) are respectively filled with 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate and toluene. An air pump (109) is fixedly installed on the base plate (101), and two air push pipes (110) are fixedly installed on the air pump (109). A pressure column (108) is fixedly installed below the pressure frame (104). A lifting rod (206) is slidably installed on the mixing and settling bottle (202). The lifting rod (206) is rotatably installed with the lifting ring (107). An inner plug (208) is fixedly installed on the lifting rod (206). When the lifting rod (206) is not lifted, the inner plug (208) will close the lower liquid outlet (209). A dropper (203) is fixedly installed on the mixing and settling bottle (202). A through tube (204) is slidably installed on the dropper (203). An oblique through hole (214) is provided on the through tube (204). An inner spring (205) is provided between the through tube (204) and the dropper (203). The dropper (203) is connected to the external tert-butylamine solution. The pressure plate (106) descends, pressing down the tube (204), compressing the dropper (203). When the oblique through-hole (214) connects with the dropper (203), the tert-butylamine solution enters the mixing and settling bottle (202) through the dropper (203). The lifting ring (107) descends and slides along the lifting rod (206). At this time, the inner plug (208) seals the lower outlet (209). When gas is forced into the raw material bottle (212), the 2,6-diisopropyl-4-dimethylamine solution inside... 2,6-Diisopropyl-4-phenoxyphenyl isothiocyanate and toluene are pressed into the funnel (210) through the injection tube (211) and enter the mixing and settling bottle (202) through the feed channel (213). Then the lower pressure frame (104) rises, so that the through tube (204), the lifting ring (107), and the lower pressure column (108) return to their initial positions, and 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate, toluene, and tert-butylamine are mixed and settling in the mixing and settling bottle (202). The pressure column (108) descends and pressurizes the two raw material bottles (212) through the air pump (109) and the air pusher (110).

2. The drying apparatus for preparing butyl urea technical grade according to claim 1, characterized in that: The drying mechanism includes a heater (302) fixedly mounted on a base plate (101), a drying bottle (303) rotatably mounted on the heater (302), a drying gear (304) fixedly mounted on the drying bottle (303), a motor frame (306) fixedly mounted on the base plate (101), a uniform motor (307) fixedly mounted on the motor frame (306), a motor gear (308) fixedly mounted on the motor shaft of the uniform motor (307), the motor gear (308) meshing with the drying gear (304), a discharge pipe (305) fixedly mounted on the base plate (101), the drying bottle (303) rotatably mounted with the discharge pipe (305), the discharge pipe (305) fixedly mounted with the liquid outlet pipe (207), a pipeline pump (309) fixedly mounted on the discharge pipe (305), a solvent pipe (314) fixedly mounted on the discharge pipe (305), methanol placed in the crystallization box (301), and a cooling pipe provided in the crystallization box (301). The crystallization box (301) is fixedly installed with the pipeline pump (309), so that the intermediate product in the drying bottle (303) is pumped into the crystallization box (301) through the pipeline pump (309).

3. The drying apparatus for preparing butyl urea technical grade according to claim 2, characterized in that: A door opening plate (311) is rotatably installed on the crystallization box (301). An inner extraction basket (313) is placed inside the crystallization box (301). A door opening slider (312) is slidably installed on the door opening plate (311). A pull rod (310) is rotatably installed on the door opening slider (312). The pull rod (310) is rotatably installed with the lower pressure frame (104).

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