Water washing device for 2-fluoro-6-nitrotoluene production

Abstract

The invention is suitable for the technical field of chemical production, and provides a water washing device for 2-fluoro-6-nitrotoluene production, which comprises a water washing tank, an upper pipe fitting and a lower pipe fitting are respectively mounted at the top and the bottom of the water washing tank, and an upper disc body, a lower disc body, a transmission column, a connecting rod A, a connecting rod B, a spray head A and a spray head B are arranged between the upper pipe fitting and the lower pipe fitting; the liquid conveying driving assembly is used for pumping out liquid at the bottom in the washing box, conveying the liquid to the spray head A and the spray head B and driving the lower pipe fitting to rotate; the lifting feeding assembly is used for adding materials to the upper pipe fitting and controlling the upper pipe fitting to ascend and descend. A communicating pipe is connected between the bottom of the washing box and the top of the transfer box, and the circulating discharging assembly is used for controlling materials in the transfer box to be conveyed to the upper pipe fitting and controlling discharging of the washed materials. By optimizing the material feeding, washing, rotating and centrifuging effects and combining the dynamic nozzle, circulating washing and controllable discharging design, the washing sufficiency, efficiency and quality are remarkably improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of chemical production, and particularly relates to a water washing device for 2-fluoro-6-nitrotoluene production. BACKGROUND

[0002] 2-fluoro-6-nitrotoluene is a chemical substance, which belongs to fluorine-containing aromatic compounds and contains a benzene ring, a methyl group, a fluorine atom and a nitro group on the benzene ring. Such compounds usually have high chemical stability and thermal stability, and may also have some special physical and chemical properties, such as good solubility, specific reactivity, etc., which makes them have wide application in organic synthesis, medicine, pesticide and other fields.

[0003] In the production process of 2-fluoro-6-nitrotoluene, water washing is an important step, the main purpose of which is to remove some impurities and by-products in the product, and to improve the purity and quality of the product. For example, inorganic salts, acidic substances, solvents, catalysts, etc. are removed by water washing. However, the existing water washing device has a traditional and single structure, and the material feeding and water washing are not reasonably optimized, and the water washing cannot be effectively recycled and controlled, which affects the sufficiency, efficiency and quality of water washing.

[0004] Therefore, in view of the above status, it is urgent to develop a water washing device for 2-fluoro-6-nitrotoluene production to overcome the deficiencies in current actual applications. SUMMARY

[0005] The purpose of the present application is to provide a water washing device for 2-fluoro-6-nitrotoluene production, which aims to solve the problems mentioned in the background.

[0006] The present application is realized as follows: a water washing device for 2-fluoro-6-nitrotoluene production, comprising a water washing box, the bottom of the water washing box is fixed with supporting legs, further comprising:

[0007] The upper pipe and the lower pipe are installed at the top and the bottom of the water washing box respectively, the lower end of the upper pipe and the upper end of the lower pipe are respectively fixed with an upper disc body and a lower disc body, a plurality of transmission columns are further fixed on the lower disc body, and the transmission columns are slidably connected with the upper disc body; a plurality of connecting rods A are circumferentially distributed and hingedly arranged at the lower end of the upper pipe, a plurality of connecting rods B are circumferentially distributed and hingedly arranged at the upper end of the lower pipe, and the upper ends of the plurality of connecting rods B are hingedly connected with the lower ends of the plurality of connecting rods A one by one; a plurality of spray heads A are installed on the outer ring of the upper side of the lower disc body, and a plurality of spray heads B are installed on the inner side of the connecting rod B;

[0008] A driving liquid delivery assembly is installed at the bottom of the washing tank, which is used to pump the liquid at the bottom of the washing tank and deliver it to the spray head A and the spray head B, and is also used to drive the rotation of the lower pipe;

[0009] A lifting and feeding assembly is installed at the top of the washing tank, which is used to add material to the upper pipe and control the lifting of the upper pipe.

[0010] A transfer tank is connected between the bottom of the washing tank and the top of the transfer tank through a communication pipe, and a circulating and discharging assembly is installed on the transfer tank, which is used to deliver the material in the transfer tank to the upper pipe and discharge the material after washing.

[0011] In a further technical solution, the upper pipe is slidingly and rotatably installed in the middle of the top of the washing tank, and the lower pipe is rotatably installed in the middle of the bottom of the washing tank; a plurality of transmission columns are uniformly distributed and fixed to the outer ring of the lower disc body; the outlet of the spray head A is vertically upward, and the number of the spray head A and the transmission columns is the same and they are uniformly staggered; the upper end of the lower pipe is sealed and hemispherical.

[0012] In a further technical solution, the driving liquid delivery assembly includes a lifting pump C, a liquid delivery pipe, a slave gear, a main gear, a motor bracket, a motor, and a hose; the slave gear is fixed on the lower pipe at the bottom of the washing tank; the motor is fixed on the supporting leg through the motor bracket, and the output end of the motor is fixed with the main gear engaged with the slave gear; the lifting pump C is fixed at the bottom of the washing tank, and the inlet of the lifting pump C is in communication with the inner bottom of the washing tank; the outlet of the washing tank is provided with the liquid delivery pipe, and the other end of the liquid delivery pipe is in sealed and rotatable communication with the bottom end of the lower pipe; the lower disc body is a hollow structure, and the spray head A is in communication with the inner cavity of the lower pipe through the inner cavity of the lower disc body; the spray head B is connected with the top end of the lower pipe through the hose, and the spray head B is in communication with the inner cavity of the lower pipe through the hose.

[0013] In a further technical solution, the inner bottom of the washing tank is further provided with an intermediate upwardly inclined filter screen, the middle of the filter screen is rotatably connected with the lower pipe, and the inlet of the lifting pump C is in communication with the lower space of the filter screen; a scraper is arranged on the upper side of the filter screen, and the inner end of the scraper is fixedly connected with the lower pipe; a heater is further installed on the liquid delivery pipe.

[0014] Further technical solutions, the lifting feeding assembly includes telescopic cylinder A, lifting plate A, sleeve ring, feeding hopper and telescopic stabilizer, the upper end of the upper pipe is rotatably installed with the feeding hopper, the feeding hopper is further fixedly connected with the top of the washing tank through the telescopic stabilizer, the sleeve ring is further rotatably installed on the upper pipe of the top of the washing tank, the outer side of the sleeve ring is fixed with the lifting plate A, the lower side of the lifting plate A is fixed with the telescopic cylinder A, and the lower end of the telescopic cylinder A is fixed to the top of the washing tank.

[0015] Further technical solutions, the circulating discharge assembly includes a circulating pipe, a lifting pump A, a telescopic cylinder B, a telescopic cylinder C, an outer pipe, a lifting pump B, a discharge pipe, a lifting plate B, a suction pipe, an inner pipe and a connecting block, the top of the transfer tank is fixed with the outer pipe, the inner side of the outer pipe is slidably provided with the inner pipe, the side of the outer pipe is further fixed with the telescopic cylinder C at the top of the transfer tank, the telescopic spindle end of the telescopic cylinder C is fixedly connected with the lower end of the inner pipe through the connecting block, the upper end of the outer pipe is fixed with the lifting pump A, the inlet of the lifting pump A is communicated with the outer pipe, the outlet of the lifting pump A is fixedly installed with the circulating pipe, and the other end of the circulating pipe is located above the feeding hopper; the inner side of the transfer tank is further provided with the suction pipe, the suction pipe is slidably extended from the top of the transfer tank, the upper end of the suction pipe is fixed with the lifting pump B, the inlet of the lifting pump B is communicated with the suction pipe, the outlet of the lifting pump B is fixedly installed with the discharge pipe, and the outer wall of the transfer tank is further fixed with the telescopic cylinder B, and the telescopic spindle end of the telescopic cylinder B is fixedly connected with the lower side of the lifting pump B through the lifting plate B.

[0016] Further technical solutions, the communicating pipe is further installed with a switch valve; the lifting pump A is further fixedly connected with the washing tank through a reinforcing rod; the cylinder body of the telescopic cylinder B is fixedly connected with the outer wall of the transfer tank through a cylinder support A, and the cylinder body of the telescopic cylinder C is fixedly connected with the outer pipe through a cylinder support B; the side bottom of the transfer tank is further provided with a discharge port A.

[0017] The 2-fluoro-6-nitrotoluene production washing device has the following beneficial effects:

[0018] The raw materials to be washed and the washing liquid are added into the inner cavity of the washing tank through the upper pipe. After the washing liquid is added, the drive liquid delivery component is activated to extract the liquid from the bottom of the washing tank and deliver it to nozzles A and B, and to drive the lower pipe to rotate. In this way, the material fed into the upper pipe through the lifting and feeding component can be washed by the washing liquid sprayed from nozzles A and B. Nozzle A can rotate with the lower plate. The lifting and feeding component can also control the lifting and lowering of the upper pipe and the angle between connecting rods A and B, thereby changing the position of nozzle B or putting nozzle B in a dynamic environment. Overall, this improves the fullness and efficiency of the washing of the material discharged from the lower end of the upper pipe. The centrifugal force of the lower plate can also be used to throw the material into the lower inner part of the washing tank. In addition, the mixture after washing inside the washing tank can be discharged into the transfer tank through the connecting pipe. The material inside the transfer tank can be controlled to be conveyed to the upward pipe through the circulating discharge component, and the washed material can be controlled to be discharged. That is, according to the stratification and other characteristics of the material in the transfer tank, the material is circulated and washed and discharged at appropriate locations, thereby improving the overall washing quality.

[0019] In summary, this water washing device for the production of 2-fluoro-6-nitrotoluene significantly improves the adequacy, efficiency, and quality of water washing by optimizing material feeding, washing, rotation, and centrifugal action, combined with dynamic nozzles, circulating water washing, and controllable discharge design. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the water washing apparatus for the production of 2-fluoro-6-nitrotoluene provided in an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure viewed from below;

[0023] Figure 4 for Figure 3 A magnified structural diagram of part B in the middle section;

[0024] Figure 5 This is a schematic diagram of the internal structure of the washing tank in the water washing device for the production of 2-fluoro-6-nitrotoluene provided in an embodiment of the present invention;

[0025] Figure 6 for Figure 5 A schematic diagram of the structure of the lower and upper plates from an upward angle;

[0026] Figure 7 This is a cross-sectional view of the transfer box section in the water washing device for the production of 2-fluoro-6-nitrotoluene provided in an embodiment of the present invention.

[0027] In the figure: 1-branch, 2-washing tank, 3-telescopic cylinder A, 4-lifting plate A, 5-sleeve, 6-feeding hopper, 7-telescopic stabilizer, 8-circulating pipe, 9-upper pipe, 10-reinforcing rod, 11-lifting pump A, 12-cylinder support A, 13-telescopic cylinder B, 14-discharge port A, 15-intermediate tank, 16-communication pipe, 17-on-off valve, 18-cylinder support B, 19-telescopic cylinder C, 20-outer pipe, 21-lifting pump B, 22-discharge pipe, 23-lifting plate B, 24-pumping pipe, 25-lifting pump C, 26-liquid delivery pipe, 27-heater, 28-lower pipe, 29-from gear, 30-main gear, 31-motor frame, 32-motor, 33-scraper, 34-filter screen, 35-lower disc body, 36-upper disc body, 37-transmission column, 38-spray head A, 39-link A, 40-link B, 41-spray head B, 42-hose, 43-inner pipe, 44-connection block. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0029] The specific implementation of the present application is described in detail below in combination with specific examples.

[0030] As Figures 1-7 shown, a washing device for producing 2-fluoro-6-nitrotoluene is provided by an embodiment of the present application, which comprises a washing tank 2, the bottom of the washing tank 2 is fixed with a branch 1, and further comprises:

[0031] An upper pipe 9 and a lower pipe 28 are installed at the top and bottom of the washing tank 2 respectively, an upper disc body 36 and a lower disc body 35 are fixed at the lower end of the upper pipe 9 and the upper end of the lower pipe 28 respectively, a plurality of transmission columns 37 are further fixed on the lower disc body 35, and the transmission columns 37 are in sliding connection with the upper disc body 36; a plurality of link A 39 are hingedly arranged at the lower end of the upper pipe 9 in a circumferential direction, a plurality of link B 40 are hingedly arranged at the upper end of the lower pipe 28 in a circumferential direction, and the upper end of the plurality of link B 40 is hingedly connected with the lower end of the plurality of link A 39 one by one; a plurality of spray head A 38 are installed on the outer ring of the upper side of the lower disc body 35, and a plurality of spray head B 41 are installed on the inner side of the link B 40;

[0032] A driving liquid delivery assembly is installed at the bottom of the washing tank 2, which is used to pump out the liquid at the bottom of the washing tank 2 and deliver it to the spray head A 38 and the spray head B 41, and is also used to drive the rotation of the lower pipe 28;

[0033] The lifting and feeding assembly is installed on the top of the washing tank 2. The lifting and feeding assembly is used to add materials to the upper pipe 9 and is also used to control the lifting and lowering of the upper pipe 9.

[0034] The transfer box 15 is connected to the bottom of the washing box 2 and the top of the transfer box 15 by a connecting pipe 16. A circulating discharge assembly is installed on the transfer box 15. The circulating discharge assembly is used to control the conveying of the material inside the transfer box 15 to the upward pipe 9. The circulating discharge assembly is also used to control the discharge of the material after washing.

[0035] In this embodiment of the invention, the raw materials to be washed and the washing liquid are added into the inner cavity of the washing tank 2 through the upper pipe 9. After the washing liquid is added, the driving liquid delivery assembly is activated to extract the liquid from the bottom of the washing tank 2 and deliver it to the nozzles A38 and B41, and to drive the lower pipe 28 to rotate. In this way, the material fed into the upper pipe 9 by the lifting and feeding assembly can be washed by the washing liquid sprayed from the nozzles A38 and B41. The nozzle A38 can rotate with the lower plate 35. The lifting and feeding assembly can also control the lifting and lowering of the upper pipe 9 and the angle between the connecting rod A39 and the connecting rod B40, thereby changing the position of the nozzle B41 or putting the nozzle B41 in a dynamic environment. Overall, this improves the sufficiency and efficiency of the washing of the material discharged from the lower end of the upper pipe 9. The centrifugal force of the lower plate 35 can also throw the material into the lower inner part of the washing tank 2. In addition, the mixture washed inside the washing tank 2 can be discharged into the transfer tank 15 through the connecting pipe 16. The material inside the transfer tank 15 can be controlled to be conveyed to the upward pipe 9 through the circulating discharge component, and the washed material can be controlled to be discharged. That is, according to the stratification and other characteristics of the material inside the transfer tank 15, the material is circulated and discharged at an appropriate location, thereby improving the overall washing quality.

[0036] It is understood that washing liquids include, but are not limited to: pure water (which can remove most inorganic salts, acidic substances and some soluble impurities), deionized water (which removes inorganic salts and metal ions and improves product purity), alkaline aqueous solutions (which neutralize acidic substances and remove acidic impurities), acidic aqueous solutions (which remove alkaline impurities and neutralize some alkaline byproducts), and buffer solutions (which maintain the pH value of the washing liquid and prevent unnecessary chemical reactions from occurring in the product during the washing process).

[0037] like Figure 1 , 3 As shown in Figure 6, in a preferred embodiment of the present invention, the upper pipe 9 is slidably and rotatably installed at the top center of the washing tank 2, and the lower pipe 28 is rotatably installed at the bottom center of the washing tank 2.

[0038] A plurality of the transmission columns 37 are evenly distributed and fixed to the outer ring of the lower disc body 35, the outlet of the nozzle A 38 is vertically upward, the number of the nozzle A 38 and the transmission column 37 is the same, and they are evenly staggered, and do not affect each other, improving the washing effect.

[0039] The upper end of the lower pipe 28 is sealed and hemispherical in shape, avoiding material accumulation and improving reliability.

[0040] The driving infusion assembly includes a lifting pump C 25, an infusion tube 26, a slave gear 29, a main gear 30, a motor bracket 31, a motor 32 and a hose 42, the slave gear 29 is fixedly installed on the lower pipe 28 at the bottom of the washing tank 2, the motor 32 is fixed on the support leg 1 through the motor bracket 31, and the output end of the motor 32 is fixed with the main gear 30 which is engaged with the slave gear 29; the lifting pump C 25 is fixed at the bottom of the washing tank 2, and the inlet of the lifting pump C 25 is in communication with the inner bottom of the washing tank 2, the outlet of the washing tank 2 is provided with the infusion tube 26, and the other end of the infusion tube 26 is in sealed rotary communication with the bottom end of the lower pipe 28; the lower disc body 35 is a hollow structure, the nozzle A 38 is in communication with the inner cavity of the lower pipe 28 through the inner cavity of the lower disc body 35, and the specific communication port (not shown) is communicated with the inner cavity of the lower disc body 35 on the lower pipe 28, which is not limited; the nozzle B 41 is connected with the top end of the lower pipe 28 through the hose 42, and the nozzle B 41 is in communication with the inner cavity of the lower pipe 28 through the hose 42, realizing the simultaneous delivery of the liquid in the lower pipe 28 to the nozzle A 38 and the nozzle B 41.

[0041] Preferably, the inner bottom of the washing tank 2 is also provided with an intermediate upwardly inclined filter screen 34, the middle of the filter screen 34 is also rotatably connected with the lower pipe 28, and the inlet of the lifting pump C 25 is in communication with the lower side space of the filter screen 34; the upper side of the filter screen 34 is provided with a scraper 33, the inner end of the scraper 33 is fixedly connected with the lower pipe 28, and the scraper 33 is beneficial to scraping the water mixture into the communication pipe 16, so as to be collected by the transfer tank 15, and the number of the scraper 33 can be arranged as required, which is not limited; the infusion tube 26 is also provided with a heater 27, and the washing liquid can be kept at a suitable temperature by the heater 27, so that the washing quality is stable.

[0042] The lifting and feeding assembly includes a telescopic cylinder A3, a lifting plate A4, a collar 5, a feeding hopper 6, and a telescopic stabilizing frame 7. The feeding hopper 6 is rotatably mounted on the upper end of the upper pipe 9. The feeding hopper 6 is also fixedly connected to the top of the washing tank 2 via the telescopic stabilizing frame 7. A collar 5 is also rotatably mounted on the upper pipe 9 at the top of the washing tank 2. The lifting plate A4 is fixed to the outside of the collar 5. The telescopic cylinder A3 is fixed to the lower side of the lifting plate A4. The lower end of the telescopic cylinder A3 is fixed to the top of the washing tank 2. The upper pipe 9 can be raised and lowered by the telescopic cylinder A3. The telescopic stabilizing frame 7 can be extended and retracted, thereby raising and lowering the feeding hopper 6 accordingly. However, the feeding hopper 6 will not rotate, ensuring the reliability of material addition. The structure of the telescopic stabilizing frame 7 is not limited, as long as it can be extended and retracted.

[0043] like Figure 1 , 2 As shown in Figure 7, in a preferred embodiment of the present invention, the circulating discharge assembly includes a circulating pipe 8, a lifting pump A11, a telescopic cylinder B13, a telescopic cylinder C19, an outer pipe 20, a lifting pump B21, a discharge pipe 22, a lifting plate B23, a suction pipe 24, an inner pipe 43, and a connecting block 44. The outer pipe 20 is fixed to the center of the top of the transfer box 15. The inner pipe 43 is slidably disposed on the inner side of the outer pipe 20. A telescopic cylinder C19 is also fixed to one side of the outer pipe 20 at the top of the transfer box 15. The telescopic spindle end of the telescopic cylinder C19 is fixedly connected to the lower end of the inner pipe 43 via the connecting block 44. The lifting pump A11 is fixed to the upper end of the outer pipe 20. The inlet of the lifting pump A11... The outlet of the pump A11 is connected to the outer pipe 20. A circulation pipe 8 is installed and fixed at the outlet of the pump A11. The other end of the circulation pipe 8 is located above the feeding hopper 6. Note that the height should be appropriate so as not to affect the lifting and lowering of the feeding hopper 6. The inner side of the transfer box 15 is also provided with a material extraction pipe 24. The material extraction pipe 24 slides out from the top of the transfer box 15. The upper end of the material extraction pipe 24 is fixed with a pump B21. The inlet of the pump B21 is connected to the material extraction pipe 24. The outlet of the pump B21 is installed and fixed with a discharge pipe 22. The outer wall of the transfer box 15 is also fixed with a telescopic cylinder B13. The telescopic spindle end of the telescopic cylinder B13 is connected and fixed to the lower side of the pump B21 through the lifting plate B23.

[0044] Preferably, a switch valve 17 is also installed on the connecting pipe 16 to facilitate material discharge control; the lifting pump A11 is also connected and fixed to the washing tank 2 via a reinforcing rod 10 to improve the stability of the lifting pump A11; the cylinder body of the telescopic cylinder B13 is fixedly connected to the outer wall of the transfer box 15 via a cylinder support A12, and the cylinder body of the telescopic cylinder C19 is fixedly connected to the outer pipe 20 via a cylinder support B18; the bottom side of the transfer box 15 is also provided with a discharge port A14, which facilitates thorough material discharge and cleaning of the interior of the transfer box 15.

[0045] For the application of the circulating discharge assembly, according to the characteristics of the organic mixture after washing in the transfer box 15, the position of the inner tube 43 can be adjusted through the telescopic cylinder C19, so as to control the position of the circulating liquid extraction washing, and the position of the discharge pipe 24 can be controlled through the telescopic cylinder B13, so as to control the position of the washing discharge, so that the washing quality is improved.

[0046] The water washing device for producing 2-fluoro-6-nitrotoluene provided in the above embodiment of the application mainly has the following working principle:

[0047] Firstly, the raw material to be washed and the washing liquid are added into the inner cavity of the washing box 2 through the upper pipe 9.

[0048] The driving liquid delivery assembly located at the bottom of the washing box 2 is started, the liquid at the bottom of the washing box 2 is extracted through the lifting pump C25, and is delivered to the spray head A38 and the spray head B41 through the liquid delivery pipe 26. In this process, the motor 32 drives the main gear 30 to rotate, and then drives the slave gear 29 and the lower pipe 28 to rotate, so that the rotation of the lower disc body 35 is realized, and the spray head A38 rotates with the lower disc body 35.

[0049] The lifting and feeding assembly controls the lifting of the upper pipe 9, adjusts the position of the spray head B41 or makes it in a dynamic environment through the angle change of the connecting rod A39 and the connecting rod B40, so as to improve the washing efficiency. When the material is discharged at the lower end of the upper pipe 9, it is impacted by the washing liquid sprayed by the spray head A38 and the spray head B41, and is thrown to the inner lower part of the washing box 2 under the centrifugal action of the lower disc body 35, so as to ensure the fullness and uniformity of the washing.

[0050] The mixture after washing is discharged into the transfer box 15 through the communication pipe 16 after being blocked by the filter screen 34, and the liquid filtered by the filter screen 34 is beneficial to the use of the circulating washing. The scraper 33 on the filter screen 34 rotates with the lower pipe 28, which is helpful to scraping the mixture after washing into the communication pipe 16.

[0051] The circulating discharge assembly adjusts the positions of the inner tube 43 and the discharge pipe 24 according to the stratification of the material in the transfer box 15, so as to select appropriate positions for the circulating washing or the discharge of the material after washing. Specifically, the height of the inner tube 43 is adjusted through the telescopic cylinder C19, so as to change the position of the circulating washing; the height of the discharge pipe 24 is adjusted through the telescopic cylinder B13, so as to change the discharge position.

[0052] In addition, the heater 27 on the liquid delivery pipe 26 can maintain the temperature of the washing liquid, so as to ensure that the temperature condition in the washing process is suitable, thereby improving the washing quality. The material after washing can be sent back to the upper pipe 9 for reprocessing or directly discharged from the system through the discharge pipe 22 under the control of the circulating discharge assembly, so as to complete the whole washing process.

[0053] In summary, the water washing device for 2-fluoro-6-nitrotoluene production realizes efficient and sufficient water washing of materials through optimized structure design, has good recycling function, and effectively improves the water washing quality and efficiency of 2-fluoro-6-nitrotoluene production.

[0054] The control of each component can be implemented by using the PLC controller disclosed in the prior art, and the model and circuit connection of each component are not specifically limited and can be flexibly set in actual application.

[0055] The circuits, electronic components and modules involved are all prior art, and can be implemented by those skilled in the art without further description, and the content protected by the present application does not involve improvement of software and methods.

[0056] Each technical feature of the above-described embodiments can be combined arbitrarily, and to make the description concise, each technical feature in the above-described embodiments is not described in all possible combinations, however, as long as the combination of technical features does not exist, it should be considered as the scope of the description.

[0057] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be pointed out that, for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A water washing apparatus for the production of 2-fluoro-6-nitrotoluene, comprising a water washing tank (2), wherein the bottom of the water washing tank (2) is fixed with support legs (1), characterized in that, Also includes: The upper pipe fitting (9) and the lower pipe fitting (28) are respectively installed on the top and bottom of the washing tank (2). The lower end of the upper pipe fitting (9) and the upper end of the lower pipe fitting (28) are respectively fixed with an upper plate body (36) and a lower plate body (35). Multiple transmission columns (37) are also fixed on the lower plate body (35). The transmission columns (37) are slidably connected to the upper plate body (36). The lower end of the upper pipe fitting (9) is circumferentially hinged with multiple connecting rods A (39), and the upper end of the lower pipe fitting (28) is circumferentially hinged with multiple connecting rods B (40), and the upper ends of the multiple connecting rods B (40) are hinged one-to-one with the lower ends of the multiple connecting rods A (39); the upper outer ring of the lower plate body (35) is equipped with multiple nozzles A (38), and the inner side of the connecting rods B (40) is equipped with nozzles B (41). The driving infusion assembly is installed at the bottom of the washing tank (2). The driving infusion assembly is used to extract the liquid at the bottom of the washing tank (2) and deliver it to the nozzle A (38) and nozzle B (41). The driving infusion assembly is also used to drive the lower pipe (28) to rotate. The lifting and feeding assembly is installed on the top of the washing tank (2). The lifting and feeding assembly is used to add materials to the upper pipe (9). The lifting and feeding assembly is also used to control the lifting and lowering of the upper pipe (9). The transfer box (15) is connected to the bottom of the washing box (2) and the top of the transfer box (15) by a connecting pipe (16). A circulating discharge assembly is installed on the transfer box (15). The circulating discharge assembly is used to control the material inside the transfer box (15) to be conveyed to the upward pipe (9). The circulating discharge assembly is also used to control the discharge of the material after washing.

2. The water washing apparatus for the production of 2-fluoro-6-nitrotoluene according to claim 1, characterized in that, The upper pipe fitting (9) is slidably and rotatably installed at the top center of the washing tank (2), and the lower pipe fitting (28) is rotatably installed at the bottom center of the washing tank (2); Multiple transmission columns (37) are evenly distributed and fixed to the outer ring of the lower plate (35); The nozzle A (38) has its outlet vertically upward. The number of nozzles A (38) and transmission columns (37) are the same and they are evenly staggered. The upper end of the lower pipe fitting (28) is sealed and hemispherical.

3. The water washing apparatus for the production of 2-fluoro-6-nitrotoluene according to claim 1 or 2, characterized in that, The drive infusion assembly includes a booster pump C (25), an infusion tube (26), a driven gear (29), a main gear (30), a motor frame (31), a motor (32), and a hose (42); The bottom of the washing tank (2) is fixed with a driven gear (29) on the lower pipe (28). The motor (32) is fixed on the support leg (1) through the motor frame (31). The output end of the motor (32) is fixed with a main gear (30) that meshes with the driven gear (29). The lift pump C (25) is fixed to the bottom of the washing tank (2), and the inlet of the lift pump C (25) is connected to the inner bottom of the washing tank (2). The outlet of the washing tank (2) is equipped with a delivery pipe (26), and the other end of the delivery pipe (26) is sealed and rotatably connected to the bottom end of the lower pipe fitting (28). The lower plate (35) is a hollow structure, and the nozzle A (38) is connected to the inner cavity of the lower pipe (28) through the inner cavity of the lower plate (35); The nozzle B (41) is connected to the top of the lower pipe fitting (28) via a hose (42), and the nozzle B (41) is connected to the inner cavity of the lower pipe fitting (28) via the hose (42).

4. The water washing apparatus for the production of 2-fluoro-6-nitrotoluene according to claim 3, characterized in that, The inner bottom of the washing tank (2) is also fitted with a filter screen (34) that is tilted upward in the middle. The middle of the filter screen (34) is rotatably connected to the lower pipe fitting (28), and the inlet of the lifting pump C (25) is connected to the lower space of the filter screen (34). The upper side of the filter screen (34) is provided with a scraper (33), and the inner end of the scraper (33) is connected and fixed to the lower pipe (28); A heater (27) is also installed on the infusion tube (26).

5. The water washing apparatus for the production of 2-fluoro-6-nitrotoluene according to claim 1 or 2, characterized in that, The lifting and feeding assembly includes a telescopic cylinder A (3), a lifting plate A (4), a collar (5), a feeding hopper (6), and a telescopic stabilizer (7); The upper end of the upper pipe fitting (9) is rotatably mounted with a feeding hopper (6), and the feeding hopper (6) is also fixedly connected to the top of the washing tank (2) through a telescopic stabilizer (7); A collar (5) is rotatably installed on the upper pipe fitting (9) at the top of the washing tank (2). A lifting plate A (4) is fixed on the outside of the collar (5). A telescopic cylinder A (3) is fixed on the lower side of the lifting plate A (4). The lower end of the telescopic cylinder A (3) is fixed to the top of the washing tank (2).

6. The water washing apparatus for the production of 2-fluoro-6-nitrotoluene according to claim 5, characterized in that, The circulating discharge assembly includes a circulating pipe (8), a lifting pump A (11), a telescopic cylinder B (13), a telescopic cylinder C (19), an outer pipe (20), a lifting pump B (21), a discharge pipe (22), a lifting plate B (23), a suction pipe (24), an inner pipe (43), and a connecting block (44). An outer tube (20) is fixed in the middle of the top of the transfer box (15). An inner tube (43) is slidably provided on the inner side of the outer tube (20). A telescopic cylinder C (19) is also fixed on one side of the outer tube (20) at the top of the transfer box (15). The telescopic spindle end of the telescopic cylinder C (19) is fixedly connected to the lower end of the inner tube (43) through a connecting block (44). The upper end of the outer pipe (20) is fixed with a lifting pump A (11), the inlet of the lifting pump A (11) is connected to the outer pipe (20), and the outlet of the lifting pump A (11) is fixed with a circulation pipe (8), the other end of the circulation pipe (8) is located above the feeding hopper (6). The inner side of the transfer box (15) is also provided with a material extraction pipe (24). The material extraction pipe (24) slides out from the top of the transfer box (15). A lifting pump B (21) is fixed at the upper end of the material extraction pipe (24). The inlet of the lifting pump B (21) is connected to the material extraction pipe (24). A discharge pipe (22) is installed and fixed at the outlet of the lifting pump B (21). The transfer box (15) is also fixed with a telescopic cylinder B (13). The telescopic spindle end of the telescopic cylinder B (13) is connected and fixed to the lower side of the lifting pump B (21) through the lifting plate B (23).

7. The water washing apparatus for the production of 2-fluoro-6-nitrotoluene according to claim 6, characterized in that, A switch valve (17) is also installed on the connecting pipe (16); The booster pump A (11) is also connected and fixed to the washing tank (2) by a reinforcing rod (10); The cylinder body of the telescopic cylinder B (13) is fixedly connected to the outer wall of the transfer box (15) through the cylinder support A (12), and the cylinder body of the telescopic cylinder C (19) is fixedly connected to the outer tube (20) through the cylinder support B (18). The transfer box (15) is also provided with a discharge port A (14) at the bottom side.

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