Pesticide insecticide vacuum drying oven

Abstract

The utility model relates to insecticide drying technical field discloses a kind of pesticide insecticide vacuum drying oven, including cabinet, multiple electric heating tubes are arranged in array in cabinet inner wall interlayer, cabinet is connected with lid, vacuum pump is connected on cabinet outer wall, vacuum pump is connected with air pipe and cabinet inside intercommunication, air pressure sensor is connected on cabinet top inner wall, reciprocating screw rod is rotatably connected in the center of lid, driving assembly is equipped on the top of lid and is connected with one end of reciprocating screw rod, sleeve pipe is threadedly connected on reciprocating screw rod, there are multiple scattering blades in circumferential array on sleeve pipe, multiple connecting shells are connected to sleeve pipe by connecting rod, and telescopic scraper is connected in connecting shell.The setting of vacuum pump can reduce the pressure in the cabinet, thereby reducing the boiling point, realizing low-temperature efficient drying, and the setting of the reciprocating scattering blades can effectively solve the problem of uneven drying.

Description

Technical Field

[0001] This utility model relates to the field of pesticide drying technology, specifically to a vacuum drying oven for pesticides and insecticides. Background Technology

[0002] Phenoxycarb is a broad-spectrum insect growth regulator, belonging to the class of insect juvenile hormone analogs. Drying is a crucial unit operation in the research, development, production, and quality control of phenoxycarb insecticides. Drying removes moisture and other residual solvents from the product, improving its stability, active ingredient content, flowability, and shelf life, and ensuring the quality of the final product.

[0003] Traditional insecticide drying methods typically employ high-temperature drying. However, when drying heat-sensitive or easily oxidized compounds like phenoxycarb, high temperatures can cause the active ingredient to degrade and decompose, reducing efficacy. Furthermore, insecticides are usually placed statically inside the drying chamber during drying, which can easily lead to uneven heating, thus reducing drying efficiency and resulting in lower drying quality. Utility Model Content

[0004] (I) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to overcome the defects of traditional high-temperature drying, which easily causes pesticides to become ineffective, as well as the defects of uneven drying and low efficiency of pesticides, and to provide a vacuum drying oven for pesticides and insecticides.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a vacuum drying oven for pesticides and insecticides, comprising a box body, with multiple electric heating tubes arrayed in the inner wall interlayer of the box body, a box cover connected to the box body, a vacuum pump connected to the outer wall of the box body, an air pipe connected to the vacuum pump and communicating with the inside of the box body, a pressure sensor connected to the inner wall of the top of the box body, a reciprocating screw rotatably connected to the center of the box cover, a driving component on the top of the box cover connected to one end of the reciprocating screw, a sleeve threadedly connected to the reciprocating screw, multiple dispersing blades arrayed circumferentially on the sleeve, and multiple connecting shells connected to the sleeve through a connecting rod, with a retractable scraper connected inside the connecting shell.

[0008] As an improvement: the interior of the box is a cylindrical structure, and the bottom of the box is an arc structure.

[0009] As an improvement: the drive assembly includes a motor fixedly mounted on the cover, with a small gear connected to the output end of the motor, and a large gear meshing with the small gear connected to one end of a reciprocating lead screw that passes through the top of the cover.

[0010] As an improvement: multiple springs are arrayed inside the connecting shell, one end of each spring is connected to a connecting plate, and the scraper is bolted to the connecting plate. The scraper is made of silicone material.

[0011] As an improvement: the connecting shell has symmetrical grooves on the top and bottom, and the connecting plate is connected to a sliding plate that is slidably disposed in the grooves.

[0012] As an improvement: the lid is equipped with a sealing ring that fits the box body, a pressure relief valve is connected to the lid, and a temperature sensor is connected inside the lid.

[0013] As an improvement: the reciprocating screw consists of two threaded grooves with the same pitch and opposite directions and a transition curve. The two threaded grooves are connected by the transition curve to form a closed helical track, and a protrusion matching the threaded groove is connected inside the sleeve.

[0014] (III) Beneficial Effects

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. By combining a vacuum pump with a pressure sensor, the chamber can be evacuated to a vacuum state, reducing the internal pressure and allowing the pesticide to boil or biochemically react at low temperatures, achieving efficient drying, preventing the degradation of the active ingredients in the pesticide, and ensuring the drying quality.

[0017] 2. Simultaneously, the drive components, reciprocating screw, and sleeve work together to make the dispersing blades and scrapers on the sleeve rotate up and down along the reciprocating screw, agitating and dispersing the internal material, promoting uniform material distribution, and improving the drying efficiency and quality of the pesticide. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a vacuum drying oven for pesticides and insecticides according to this utility model.

[0019] Figure 2 This utility model relates to a vacuum drying oven for pesticides and insecticides. Figure 1 A schematic diagram of the explosion structure.

[0020] Figure 3 This utility model relates to a vacuum drying oven for pesticides and insecticides. Figure 2 A schematic diagram of the connection structure between the reciprocating lead screw and the sleeve.

[0021] Figure 4 This utility model relates to a vacuum drying oven for pesticides and insecticides. Figure 2 A schematic diagram of the connection structure between the drive component and the reciprocating lead screw.

[0022] Figure 5 This utility model relates to a vacuum drying oven for pesticides and insecticides. Figure 3 A schematic diagram of the connection structure between the sleeve and the connecting shell.

[0023] Figure 6 This utility model relates to a vacuum drying oven for pesticides and insecticides. Figure 5 A schematic diagram of a partial sectional view of the structure from the side.

[0024] Figure 7 This utility model relates to a vacuum drying oven for pesticides and insecticides. Figure 6 A magnified schematic diagram of part A in the diagram.

[0025] [Explanation of Labels in the Attached Image]

[0026] 1. Housing; 2. Cover; 3. Vacuum pump; 4. Air pipe; 5. Pressure sensor; 6. Reciprocating lead screw; 7. Sleeve; 8. Dispersing blade; 9. Connecting shell; 10. Scraper; 11. Motor; 12. Pinion; 13. Gear; 14. Spring; 15. Connecting plate; 16. Slide groove; 17. Slide plate; 18. Pressure relief valve; 19. Temperature sensor. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0028] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0029] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0030] Combined with appendix Figure 1 As shown, a vacuum drying oven for pesticides and insecticides includes a box body 1. Multiple electric heating tubes are arrayed in the inner wall interlayer of the box body 1. A box cover 2 is connected to the box body 1. Flanges are connected to the top of the box body 1 and the box cover 2. During the drying operation, the box cover 2 is fixedly connected to the box body 1 by bolts and nuts to ensure the stability of the box cover 2 during drying.

[0031] Among them, the combination of appendix Figure 2 As shown, the interior of the box 1 is a cylindrical structure, and the bottom of the box 1 is an arc structure. The interior of the box 1 adopts an arc transition, with no dead corners, which can reduce the accumulation of insecticide at the corners of the box 1, thereby minimizing the adhesion of materials.

[0032] Combined with appendix Figure 2 and Figure 3 As shown, a vacuum pump 3 is connected to the outer wall of the box 1, and an air pipe 4 is connected to the vacuum pump 3 and communicates with the inside of the box 1. A pressure sensor 5 is connected to the inner wall of the top of the box 1. The box cover 2 is provided with a sealing ring that is compatible with the box 1. When the box cover 2 is tightly connected to the box 1, the sealing ring can fill the gap at the connection, thereby ensuring the airtightness of the box 1, preventing air leakage from inside and outside the box 1, and maintaining the internal air pressure. A pressure relief valve 18 is connected to the box cover 2, and a temperature sensor 19 is connected inside the box cover 2.

[0033] The pressure relief valve 18 is designed to automatically open when the pressure inside the chamber 1 exceeds the limit, releasing gas, protecting the chamber 1, and ensuring the safety of the drying process.

[0034] Through the above structure, the vacuum pump 3 is activated to extract the air inside the chamber 1, thereby reducing the air pressure inside the chamber 1. The air pressure sensor 5 and the temperature sensor 19 accurately and in real time detect the vacuum degree and temperature inside the chamber 1 to understand the drying environment inside the chamber 1. According to the relationship between the boiling point of a substance and pressure, reducing the pressure can lower the boiling point of the substance. Therefore, under low pressure, phenoxycarb insecticide can achieve low-temperature drying, which improves the drying speed and ensures the safety of the insecticide during the drying process, effectively avoiding the risk of insecticide failure during the drying process.

[0035] During the drying process, the insecticide is placed inside chamber 1. The material near the wall of chamber 1 has a different temperature than the material at the center of chamber 1, therefore its drying speed also differs. Therefore, in conjunction with the attached... Figure 3 As shown, a reciprocating screw 6 is rotatably connected to the center of the box cover 2. A drive assembly is provided on the top of the box cover 2 and connected to one end of the reciprocating screw 6. A sleeve 7 is threaded onto the reciprocating screw 6. Multiple dispersing blades 8 are arranged in a circular array on the sleeve 7. The dispersing blades 8 are inclined.

[0036] Among them, the combination of appendix Figure 3 and Figure 5 As shown, the reciprocating screw 6 consists of two threaded grooves with the same pitch and opposite directions and a transition curve. The two threaded grooves are connected by the transition curve to form a closed helical track. The sleeve 7 is connected with a protrusion that matches the threaded groove.

[0037] Combined with appendix Figure 4As shown, the drive assembly includes a motor 11 fixedly mounted on the cover 2. The output end of the motor 11 is connected to a small gear 12. One end of the reciprocating screw 6 passes through the top of the cover 2 and is connected to a large gear 13 that meshes with the small gear 12. In this design, the small gear 12 drives the large gear 13 to rotate, thereby driving the reciprocating screw 6 connected to the large gear 13 to rotate, which can reduce the rotation speed of the reciprocating screw 6. A protective shell is provided on the top of the cover 2. The protective shell is placed above the drive assembly and can protect the internal components and reduce damage to them from the external environment.

[0038] Through the above structure, the motor 11 drives the pinion 12 to rotate, and through the meshing of the large gear 13 with the pinion 12, the reciprocating screw 6 is rotated. During the rotation of the screw, the protrusion on the sleeve 7 engages with the threaded groove on the reciprocating screw 6, so that the sleeve 7 performs up-and-down reciprocating motion while rotating. As the sleeve 7 performs reciprocating motion, the dispersing blades 8 will stir, break up clumps, and promote the redistribution of the insecticide in the box 1, avoiding material accumulation and caking, making the material heat more evenly, drying faster, and ensuring the drying quality of the insecticide.

[0039] At the same time, the material may also adhere to the inner wall of box 1, potentially becoming gelatinized and affecting its drying quality. Figures 5 to 7 As shown, the sleeve 7 is connected to multiple connecting shells 9 via connecting rods. A retractable scraper 10 is connected inside the connecting shell 9. Multiple springs 14 are arrayed inside the connecting shell 9. One end of each spring 14 is connected to a connecting plate 15. The scraper 10 is bolted to the connecting plate 15. The scraper 10 is made of silicone material and has a detachable design, which allows for easy replacement after repeated use and damage.

[0040] Combined with appendix Figure 7 As shown, the connecting shell 9 has symmetrically arranged sliding grooves 16 inside. A sliding plate 17 is connected to the connecting plate 15 and is slidably disposed in the sliding groove 16. The size of the sliding plate 17 is adapted to the sliding groove 16. The two work together to restrict the movement of the connecting plate 15 and ensure the stability of the scraper 10 connected to the connecting plate 15 during adjustment.

[0041] The scraper 10 has a bent structure. When installing the scraper 10, the bending direction of the scraper 10 should be facing the rotation direction of the scraper 10.

[0042] The scraper 10 rotates along with the sleeve 7 during rotation, and one end of the scraper 10 is in contact with the inner wall of the box 1. During its rotation and reciprocating motion, it can scrape off the insecticide adhering to the inner wall of the box 1, preventing it from sticking to the inner wall of the box 1 for a long time and causing it to become pasty. The spring 14 allows the scraper 10 to adapt to the inner wall of the box 1, reducing the damage to the inner wall of the box 1 during the scraping process.

[0043] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A vacuum drying oven for pesticides and insecticides, comprising a box body (1), wherein a plurality of electric heating tubes are arrayed in the inner wall interlayer of the box body (1), and a box cover (2) is connected to the box body (1), characterized in that: A vacuum pump (3) is connected to the outer wall of the box (1), and an air pipe (4) is connected to the vacuum pump (3) and communicates with the inside of the box (1). A pressure sensor (5) is connected to the inner wall of the top of the box (1). The box cover (2) is rotatably connected to a reciprocating screw (6) at its center. The top of the box cover (2) is provided with a drive assembly connected to one end of the reciprocating screw (6). A sleeve (7) is threaded onto the reciprocating screw (6). Multiple dispersing blades (8) are arranged in a circular array on the sleeve (7). Multiple connecting shells (9) are connected to the sleeve (7) through a connecting rod. A retractable scraper (10) is connected inside the connecting shell (9).

2. The pesticide insecticide vacuum drying oven according to claim 1, characterized in that: The box (1) has a cylindrical structure inside and an arc-shaped bottom.

3. The pesticide insecticide vacuum drying oven according to claim 1, characterized in that: The drive assembly includes a motor (11) fixed on the cover (2), a small gear (12) connected to the output end of the motor (11), and a large gear (13) that meshes with the small gear (12) is connected to one end of the reciprocating screw (6) through the top of the cover (2).

4. The pesticide insecticide vacuum drying oven according to claim 1, characterized in that: Multiple springs (14) are arrayed inside the connecting shell (9). One end of each spring (14) is connected to a connecting plate (15). The scraper (10) is bolted to the connecting plate (15) and is made of silicone.

5. A vacuum drying oven for pesticides and insecticides according to claim 4, characterized in that: The connecting shell (9) has symmetrically arranged grooves (16) inside, and a sliding plate (17) is connected to the connecting plate (15) and is slidably disposed in the grooves (16).

6. The pesticide insecticide vacuum drying oven according to claim 1, characterized in that: The cover (2) is provided with a sealing ring that is compatible with the box body (1), and a pressure relief valve (18) is connected to the cover (2). A temperature sensor (19) is connected inside the cover (2).

7. The pesticide insecticide vacuum drying oven according to claim 1, characterized in that: The reciprocating screw (6) consists of two threaded grooves with the same pitch and opposite directions and a transition curve. The two threaded grooves are connected by the transition curve to form a closed helical track. The sleeve (7) is connected with a protrusion that matches the threaded groove.

Images