Extraction centrifugal machine for producing diformamidine

Abstract

The utility model relates to an extraction centrifugal machine for producing diformamidine, which belongs to the technical field of centrifugal machines, and aims to solve the problems that solid particles in a mixed solution can influence the separation efficiency and the separation effect is not good, the extraction centrifugal machine comprises a bracket, an outer barrel is fixedly connected to the upper end of the bracket, and a filter box and a rope winding device are fixedly connected to the outer barrel; a feeding port is formed in the upper end of the filter box, a driving motor is fixedly connected to the side edge of the filter box, a first-stage separation cavity is formed in the outer cylinder, a second-stage separation cavity is formed below the first-stage separation cavity, a connecting pipe is communicated between the first-stage separation cavity and the second-stage separation cavity, and a rotating plate is rotationally installed in the first-stage separation cavity; according to the extraction centrifugal machine for producing the diformamidine, particle impurities in a solution can be filtered out in advance, the impurities can be discharged, the maintenance and cleaning frequency is reduced, the service life is prolonged, meanwhile, the solution can be subjected to secondary separation, and the separation effect and the product purity are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to an extraction centrifuge for the production of amitraz. Background Technique

[0002] Amitraz is an organic compound. As a broad-spectrum formamidine acaricide and insecticide, it is mainly used to control various harmful mites on crops such as fruit trees, vegetables, tea, cotton, soybeans, and sugar beets. When producing amitraz, extraction and separation is a key step for purifying and separating the target product amitraz from the reaction mixture.

[0003] However, the existing extraction and separation machines have the following problems when in use:

[0004] 1. During the synthesis of amitraz, the mixing of various chemicals will produce some reaction by-products, which exist in the form of solid particles. If the mixed solution is not filtered before centrifugal separation, the solid particles will be deposited on the centrifuge drum or filter screen in advance, affecting the separation speed and efficiency.

[0005] 2. After the primary separation, although most of the waste liquid has settled to the lower layer, the upper layer solution may still contain some incompletely separated waste liquid. If secondary centrifugal separation is not carried out, these residual waste liquids will be collected together with the upper layer solution, thereby affecting the purity and quality of the final product.

[0006] In view of the above problems, there is an urgent need to innovate and design on the basis of the original extraction and separation machine. Content of the Utility Model

[0007] The purpose of the utility model is to provide an extraction centrifuge for the production of amitraz, so as to solve the problems put forward in the above background technique that there are solid particles in the mixed solution in the current market. If the solid particles are not separated in advance, it will affect the separation speed and efficiency. At the same time, only one centrifugal separation is carried out on the solution, resulting in that the separated solution may still contain some incompletely separated waste liquid, affecting the purity and quality of the final product.

[0008] To achieve the above purpose, the utility model provides the following technical solution: An extraction centrifuge for the production of amitraz, including a bracket, the upper end of the bracket is fixedly connected with an outer cylinder, and a filter box and a rope winding device are fixedly connected to the outer cylinder. The upper end of the filter box is provided with a feed inlet, and a driving motor is fixedly connected to the side of the filter box;

[0009] It further includes:

[0010] A primary separation chamber is provided inside the outer cylinder, and a secondary separation chamber is provided below the primary separation chamber. A connecting pipe communicates between the primary separation chamber and the secondary separation chamber. A rotating plate is rotatably installed inside the primary separation chamber, and a connecting shaft is fixedly connected to the rotating plate. Stirring plates are fixedly connected to the outside of the connecting shaft, and a second bevel gear is fixedly connected to the top end of the connecting shaft. One end of the connecting pipe is fixedly connected to a flexible hose, and a floating plate is fixedly connected to the bottom end of the flexible hose. A fine separation barrel is rotatably installed at the bottom end of the secondary separation chamber, and blade plates are fixedly connected to the outside of the fine separation barrel. Nozzles are fixedly connected to the inner wall of the outer cylinder above the fine separation barrel.

[0011] A rectangular groove is provided inside the filter box, and a filter plate is fixedly connected inside the rectangular groove. A rotating rod is rotatably installed inside the filter plate, a first bevel gear is sleeved on the outside of the rotating rod, and a scraping plate is fixedly connected to the end of the rotating rod away from the first bevel gear.

[0012] Preferably, the water outlet end of the connecting pipe penetrates into the secondary separation chamber and is rotatably connected to the fine separation barrel. The flexible hose connected to the water inlet end of the connecting pipe is arranged inside the primary separation chamber. The floating plate at the bottom end of the flexible hose is linearly connected to the rope winding device, and a pump for pumping water is fixedly connected to the floating plate.

[0013] Preferably, the primary separation chamber and the secondary separation chamber are communicated through the nozzles. A valve is provided at the water inlet end of the nozzles. Two nozzles are symmetrically arranged with respect to the fine separation barrel, and the two nozzles are inclined.

[0014] Preferably, the blade plates on the fine separation barrel are inclined, the blade plates are arranged in a circumferential array with respect to the center point of the fine separation barrel, and the blade plates are aligned with the water outlet ends of the nozzles.

[0015] Preferably, one end of the rotating rod penetrates out of the rectangular groove and is fixedly connected to the output end of the driving motor. The second bevel gear on the rotating rod is rotatably arranged inside the outer cylinder, and the second bevel gear meshes with the first bevel gear.

[0016] Preferably, the scraping plate is located inside the rectangular groove, one end of the scraping plate is attached to the filter plate, and a slag discharge port is provided on the rectangular groove below the scraping plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: This extraction centrifuge for the production of amitraz can filter out particulate impurities in the solution in advance, discharge the impurities, reduce the frequency of maintenance and cleaning, increase the service life, and at the same time can perform secondary separation on the solution, improve the separation effect and product purity. The specific content is as follows:

[0018] 1. A filter plate and a scraper are provided. When the solution to be separated is poured from the feed inlet, the filter plate will separate the solid and liquid in the solution, so that impurities are separated. Then, the rotating rod will rotate driven by the driving motor, thereby driving the scraper to rotate, so that the scraper self-cleans the filter plate and improves the filtering efficiency of the filter plate.

[0019] 2. A fine separation barrel and blade plates are provided. After the initial separation of the solution, the pull rope is loosened to make the floating plate float on the surface of the solution. At this time, the inlet of the hose will fit with the surface of the solution, so as to suck and transport the separated solution on the upper layer to the fine separation barrel through the connecting pipe. Then, the valve on the nozzle is opened, so that the solution in the primary separation chamber is discharged into the secondary separation chamber through the nozzle. At this time, the solution will impact the blade plates, thereby driving the fine separation barrel to rotate. Using the potential energy of the solution, the solution in the fine separation barrel is centrifugally separated for the second time, which can reduce energy consumption and thus reduce the operating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the front view structural schematic diagram of the present utility model;

[0021] Figure 2 is the side sectional structural schematic diagram of the present utility model;

[0022] Figure 3 is the enlarged structural schematic diagram at A in the figure of the present utility model;

[0023] Figure 4 is the top sectional structural schematic diagram of the present utility model;

[0024] Figure 5 is the installation structural schematic diagram of the fine separation barrel of the present utility model.

[0025] In the figure: 1. Support; 2. Outer cylinder; 201. Primary separation chamber; 202. Secondary separation chamber; 3. Filter box; 301. Rectangular groove; 4. Feed inlet; 5. Driving motor; 6. Rotating rod; 7. First bevel gear; 8. Rotating plate; 9. Connecting shaft; 10. Stirring plate; 11. Connecting pipe; 12. Hose; 13. Floating plate; 14. Fine separation barrel; 15. Blade plate; 16. Nozzle; 17. Rope winding device; 18. Second bevel gear; 19. Filter plate; 20. Scraper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figures 1 - 5 As shown in the figure, the present utility model provides a technical solution: an extraction centrifuge for the production of amitraz, comprising a bracket 1, the upper end of the bracket 1 is fixedly connected with an outer cylinder 2, and a filter box 3 and a rope winding device 17 are fixedly connected to the outer cylinder 2. An inlet 4 is opened at the upper end of the filter box 3, and a driving motor 5 is fixedly connected to the side of the filter box 3.

[0028] With the settings of the outer cylinder 2 and the inlet 4 in this technical solution, when in use, first place the bracket 1 on a flat and open ground, then prepare the solution to be separated, connect it to the inlet 4 through a pipeline, then transport the solution into the inlet 4, and at the same time turn on the driving motor 5, so that the solution entering the inner part of the outer cylinder 2 from the inlet 4 rotates and separates under the drive of the driving motor 5, and after the separation is completed, the solution can be discharged.

[0029] Example 2: The technical content disclosed in this example is an improvement based on Example 1 above. There are solid particles in the existing mixed solution. If the solid particles are not separated in advance, it will affect the separation speed and efficiency. This technical solution is as Figure 1 and Figure 2 、 Figure 3 As shown in the figure, a filter assembly of the centrifuge is disclosed. A rectangular groove 301 is opened in the filter box 3 provided, and a filter plate 19 is fixedly connected in the rectangular groove 301 of the filter box 3. A rotating rod 6 is rotatably installed in the filter plate 19, and a first bevel gear 7 is sleeved outside the rotating rod 6. One end of the rotating rod 6 far from the first bevel gear 7 is fixedly connected with a scraper 20. One end of the rotating rod 6 penetrates out of the rectangular groove 301 and is fixedly connected with the output end of the driving motor 5. A second bevel gear 18 on the rotating rod 6 is rotatably arranged in the outer cylinder 2, and the second bevel gear 18 meshes with the first bevel gear 7. The scraper 20 is located in the rectangular groove 301, one end of the scraper 20 is attached to the filter plate 19, and a slag discharge port is opened on the rectangular groove 301 below the scraper 20.

[0030] In this technical solution, as Figure 1 shown in the figure, with the settings of the filter plate 19 and the scraper 20, when the solution is input from the inlet 4, the filter plate 19 will filter it, thereby separating the solid impurities in the solution and improving the efficiency of subsequent centrifugal separation. And when centrifugally separating the solution, the scraper 20 will rotate while adhering to the surface of the filter plate 19, thereby scraping off the impurities attached to the filter plate 19 and improving the filtering efficiency of the filter plate 19.

[0031] It adopts such as Figure 2 and Figure 3In the technical solution shown, when the solution is conveyed into the feed port 4, the solution falls into the rectangular tank 301 under the influence of gravity. As the solution in the rectangular tank 301 increases, the solution submerges the filter plate 19. Immediately afterwards, the filter plate 19 filters the solution, separating the solid impurities in the solution. At this time, the driving motor 5 is turned on, and the driving motor 5 drives the rotating rod 6 to rotate, causing the rotating rod 6 to drive the scraper 20 to rotate. By sliding the scraper 20 along the surface of the filter plate 19, the filter plate 19 is cleaned, and the impurities attached to the filter plate 19 are scraped off.

[0032] Embodiment 3: The technical content disclosed in this embodiment is a further improvement based on the above Embodiment 1 and Embodiment 2. When the solution is only centrifugally separated once, some unseparated waste liquid may still remain in the separated solution, affecting the purity and quality of the final product. To further solve this technical problem, the technical solution is as follows Figure 4 and Figure 5 shown. A secondary separation component of a centrifuge is disclosed. An outer cylinder 2 is provided with a primary separation chamber 201, and a secondary separation chamber 202 is provided below the primary separation chamber 201. A connecting pipe 11 communicates between the primary separation chamber 201 and the secondary separation chamber 202. A rotating plate 8 is rotatably installed in the primary separation chamber 201, and a connecting shaft 9 is fixedly connected to the rotating plate 8. A stirring plate 10 is fixedly connected to the outside of the connecting shaft 9, and a second bevel gear 18 is fixedly connected to the top end of the connecting shaft 9. One end of the connecting pipe 11 is fixedly connected to a flexible pipe 12, and a floating plate 13 is fixedly connected to the bottom end of the flexible pipe 12. A fine separation barrel 14 is rotatably installed at the bottom end of the secondary separation chamber 202, and a blade 15 is fixedly connected to the outside of the fine separation barrel 14. A nozzle 16 is fixedly connected to the inner wall of the outer cylinder 2 above the fine separation barrel 14. The water outlet end of the connecting pipe 11 penetrates into the secondary separation chamber 202 and is rotatably connected to the fine separation barrel 14. The flexible pipe 12 connected to the water inlet end of the connecting pipe 11 is arranged in the primary separation chamber 201, and the floating plate 13 at the bottom end of the flexible pipe 12 is connected to the rope winding device 17 by a wire. A pump for pumping water is fixedly connected to the floating plate 13. The primary separation chamber 201 and the secondary separation chamber 202 are communicated through the nozzle 16, and a valve is provided at the water inlet end of the nozzle 16. Two nozzles 16 are symmetrically arranged with respect to the fine separation barrel 14, and the two nozzles 16 are inclined. The blades 15 on the fine separation barrel 14 are inclined, and the blades 15 are arranged in a circumferential array with respect to the center point of the fine separation barrel 14, and the blades 15 are aligned with the water outlet ends of the nozzles 16.

[0033] In the present technical solution, as follows Figure 4As shown, by using the settings of the fine separation barrel 14 and the blade 15, when the separated solution is transported into the fine separation barrel 14, the solution in the primary separation chamber 201 is discharged through the nozzle 16. At this time, the waste liquid will impact the blade 15, thereby driving the fine separation barrel 14 to rotate by using the potential energy of the waste liquid, performing secondary centrifugal separation on the filtered solution, further refining the separation process, and achieving a more precise separation effect.

[0034] It adopts the technical solution as Figure 5 shown. First, the rope winding device 17 winds the pulling rope, causing the pulling rope to pull the floating plate 13 to rise. When the solution enters the primary separation chamber 201, the driving motor 5 is turned on. The driving motor 5 drives the rotating rod 6 to rotate. When the rotating rod 6 rotates, it drives the first bevel gear 7. Immediately afterwards, the first bevel gear 7 meshes with the second bevel gear 18 to rotate, causing the second bevel gear 18 to drive the connecting shaft 9 to rotate, thereby driving the rotating plate 8 and the stirring plate 10 to rotate simultaneously, mixing the solution in the primary separation chamber 201 and performing preliminary separation. After the separation is completed, the pulling rope is released. At this time, the floating plate 13 drops and then floats on the top layer of the solution. At the same time, the bottom end of the hose 12 on the floating plate 13 will fit with the surface of the solution. At this time, the pump is started, causing the hose 12 to suck the solution and transporting the sucked solution to the fine separation barrel 14 through the connecting pipe 11. After all the solution is transported into the fine separation barrel 14, the valve on the nozzle 16 is opened at this time, and the remaining impurity solution is discharged through the nozzle 16. At this time, the discharged waste liquid will impact the blade 15, causing the blade 15 to drive the fine separation barrel 14 to rotate, thereby performing secondary separation on the solution in the fine separation barrel 14 and improving the separation efficiency.

[0035] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An extraction centrifuge for producing amitraz, comprising a support (1), an outer cylinder (2) being fixedly connected to the upper end of the support (1), a filter box (3) and a rope winding device (17) being fixedly connected to the outer cylinder (2), a feed inlet (4) being provided at the upper end of the filter box (3), and a drive motor (5) being fixedly connected to the side of the filter box (3); It is characterized in that Also includes: A primary separation chamber (201) is provided in the outer cylinder (2), and a secondary separation chamber (202) is provided below the primary separation chamber (201), and a connecting pipe (11) is connected between the primary separation chamber (201) and the secondary separation chamber (202), a rotating plate (8) is rotatably installed in the primary separation chamber (201), and a connecting shaft (9) is fixedly connected to the rotating plate (8), a stirring plate (10) is fixedly connected to the outside of the connecting shaft (9), and a second bevel gear (18) is fixedly connected to the top of the connecting shaft (9), a hose (12) is fixedly connected to one end of the connecting pipe (11), and a floating plate (13) is fixedly connected to the bottom end of the hose (12), a fine separation barrel (14) is rotatably installed at the bottom end of the secondary separation chamber (202), and a blade plate (15) is fixedly connected to the outside of the fine separation barrel (14), and a nozzle (16) is fixedly connected to the inner wall of the outer cylinder (2) above the fine separation barrel (14); A rectangular groove (301) is provided in the filter box (3), and a filter plate (19) is fixedly connected in the rectangular groove (301). A rotating rod (6) is rotatably installed in the filter plate (19), and a first bevel gear (7) is sleeved on the outer side of the rotating rod (6), and a scraper (20) is fixedly connected to one end of the rotating rod (6) away from the first bevel gear (7).

2. The extraction centrifuge for amitraz production according to claim 1, characterized in that: The water outlet end of the connecting pipe (11) extends into the secondary separation chamber (202) and is rotatably connected to the fine separation barrel (14), and the hose (12) connected to the water inlet end of the connecting pipe (11) is arranged in the primary separation chamber (201), and the floating plate (13) at the bottom end of the hose (12) is connected to the rope winding device (17), and a pump for pumping water is fixedly connected to the floating plate (13).

3. The extraction centrifuge for amitraz production according to claim 2, characterized in that: The primary separation chamber (201) and the secondary separation chamber (202) are connected via a nozzle (16), and a valve is provided at the water inlet end of the nozzle (16). Two nozzles (16) are symmetrically arranged with respect to the fine separation barrel (14), and the two nozzles (16) are arranged obliquely.

4. The extraction centrifuge for amitraz production according to claim 3, characterized in that: The blades (15) on the fine separation barrel (14) are arranged at an angle, and the blades (15) are arranged in a circular array about the center point of the fine separation barrel (14), and the blades (15) are aligned with the water outlet end of the nozzle (16).

5. The extraction centrifuge for amitraz production according to claim 1, characterized in that: One end of the rotating rod (6) extends through the rectangular groove (301) and is fixedly connected to the output end of the driving motor (5), and the second bevel gear (18) on the rotating rod (6) is rotatably arranged in the outer cylinder (2), and the second bevel gear (18) is meshed with the first bevel gear (7).

6. The extraction centrifuge for amitraz production according to claim 1, characterized in that: The scraper (20) is located in the rectangular groove (301), and one end of the scraper (20) is in contact with the filter plate (19), and a slag discharge port is provided on the rectangular groove (301) below the scraper (20).

Images