Drying device for trifluoroacetamide

Abstract

The utility model discloses a trifluoroacetamide drying device, which belongs to the technical field of chemical product drying equipment and comprises an operation table for supporting trifluoroacetamide drying, a drying protection barrel is mounted at the top of the operation table, a transverse rod is welded on the vertical inner wall of the drying protection barrel, a sliding groove is formed in the transverse rod, and a sliding groove is formed in the sliding groove. Two springs are symmetrically connected into the sliding groove, the ends of the two springs are connected with a moving plate, the top of the moving plate is connected with a connecting block, a moving disc is welded to the end, away from the moving plate, of the connecting block, a motor is installed at the top of the moving disc, and an output shaft of the motor is connected with a connecting column through a coupler. According to the trifluoroacetamide screening device, the screening capacity is improved, trifluoroacetamide powder with different particle sizes can be effectively separated out, the particle sizes are more uniform, the production efficiency is improved, and the reject ratio of products is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of chemical product drying equipment, and in particular, a drying device for trifluoroacetamide. Background Technology

[0002] Trifluoroacetamide, as an important organic chemical raw material, has wide applications in many fields such as pharmaceuticals, pesticides, and materials science. Drying is a crucial step in the production of trifluoroacetamide, aiming to remove moisture and other volatile impurities to ensure product quality meets relevant standards. Due to the uneven particle size, larger particles require longer drying times to reach the specified moisture content. Traditional trifluoroacetamide drying equipment can meet basic drying requirements, but its screening capability is weak, failing to effectively separate trifluoroacetamide powders of different particle sizes. This results in uneven particle size distribution, reduced production efficiency, and an increased product defect rate.

[0003] A search revealed a Chinese patent document (authorization announcement number CN219868845U), which discloses a drying device for trifluoroacetamide. The device includes a vertically arranged drying cylinder, a drying cylinder, an electric heating element, a feed pipe, a discharge structure, a fan, and a conical shroud. The feed pipe is fixed to the side wall at the top of the drying cylinder and is tangential to the cylinder. When trifluoroacetamide powder is blown into the drying cylinder by the fan through the feed pipe, it slowly descends along the inner wall of the cylinder under gravity. The side wall of the drying cylinder, heated by the electric heating element, rapidly dries the dispersed trifluoroacetamide powder. The device allows for continuous feeding and discharging, significantly improving the drying efficiency of the trifluoroacetamide powder. While this device meets basic drying requirements, its screening capability is weak, failing to effectively separate trifluoroacetamide powders of different particle sizes, resulting in uneven particle size, reduced production efficiency, and increased product defect rate. Utility Model Content

[0004] The purpose of this invention is to provide a drying device for trifluoroacetamide to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying device for trifluoroacetamide, comprising an operating table for supporting the drying of trifluoroacetamide, a drying protection barrel installed on the top of the operating table, a horizontal bar welded to the vertical inner wall of the drying protection barrel, a sliding groove provided inside the horizontal bar, two springs symmetrically connected inside the sliding groove, a movable plate connected to the ends of the two springs, a connecting block connected to the top of the movable plate, a movable disk welded to the end of the connecting block away from the movable plate, two guide columns symmetrically arranged on the surface of the movable disk, two straight grooves connected to the top of the horizontal bar, the two straight grooves sliding inside the two guide columns respectively, a motor installed on the top of the movable disk, the output shaft of the motor connected to a connecting column via a coupling, and a screening barrel for screening trifluoroacetamide installed at one end of the connecting column.

[0006] Preferably, the outer periphery of the screening barrel is connected to two arc-shaped plates, the top of the crossbar is welded with a fixing plate, and the bottom of the crossbar is connected to a guide hopper for the entry of trifluoroacetamide after screening.

[0007] Preferably, a pressure relief pipe is installed on the top of the operating platform, an operating plate is installed on the side of the operating platform, a support leg is welded to the bottom of the operating platform, and a circulating water pump is installed on the side of the support leg.

[0008] Preferably, the inner bottom wall of the drying protection barrel is provided with a liquid outlet, the top of the drying protection barrel is installed with a top cover, and the side of the drying protection barrel is installed with a liquid heating pipe and a side door.

[0009] Preferably, the top of the liquid heating tube is connected to a water pipe, and a support block is installed on the outer periphery of the water pipe.

[0010] Preferably, the drying protection barrel is equipped with a drying barrel for drying trifluoroacetamide, and a discharge control pipe is installed at the bottom of the drying barrel.

[0011] Preferably, the outer periphery of the circulating water pump is connected to an inlet pipe and an outlet pipe.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0013] This trifluoroacetamide drying device benefits from the structure of the screening barrel. The edge of the arc-shaped plate contacts the fixed plate, and the fixed plate squeezes the arc-shaped plate. The arc-shaped plate drives the screening barrel and the moving disc to move. The moving disc drives the connecting block and the moving plate to move along the inside of the chute. The straight groove limits the moving disc to prevent it from moving in other directions. Due to the action of the spring, the moving disc drives the screening barrel to reciprocate. The screening barrel screens the trifluoroacetamide. Compared with the traditional trifluoroacetamide drying device with weak screening capacity, this structure increases the screening capacity, effectively separates trifluoroacetamide powder of different particle sizes, and makes the particle size more uniform, improving production efficiency and reducing the product defect rate.

[0014] This trifluoroacetamide drying device benefits from the structure of the liquid heating tube. The circulating water pump circulates the liquid, and the liquid heating tube heats the liquid. The heated liquid enters the space between the drying tank and the drying protection tank through the water pipe. The heating liquid between the drying protection tank and the drying tank dries the trifluoroacetamide in the drying tank, increasing the drying efficiency. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] In the diagram: 1. Control panel; 101. Support leg; 102. Circulating water pump; 103. Liquid inlet pipe; 104. Liquid outlet pipe; 105. Pressure relief pipe; 106. Liquid heating pipe; 107. Water pipe; 108. Control panel; 2. Drying protection tank; 201. Top cover; 202. Side door; 203. Drying tank; 204. Discharge control pipe; 205. Liquid outlet hole; 3. Crossbar; 301. Slide chute; 302. Spring; 303. Moving plate; 304. Connecting block; 305. Moving disc; 306. Straight trough; 307. Guide column; 4. Motor; 401. Connecting column; 402. Screening tank; 403. Arc plate; 404. Fixing plate; 405. Support block; 406. Guide hopper. Detailed Implementation

[0023] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0024] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0025] like Figures 1 to 5 The apparatus shown is a drying device for trifluoroacetamide, including an operating table 1 for supporting the drying of trifluoroacetamide. A drying protection barrel 2 is installed on the top of the operating table 1. A crossbar 3 is welded to the vertical inner wall of the drying protection barrel 2. A sliding groove 301 is provided inside the crossbar 3. Two springs 302 are symmetrically connected inside the sliding groove 301. A movable plate 303 is connected to the ends of the two springs 302. A connecting block 304 is connected to the top of the movable plate 303. A movable disk 305 is welded to the end of the connecting block 304 away from the movable plate 303. Two guide posts 307 are symmetrically arranged on the surface of the movable disk 305. Two straight grooves 306 are connected to the top of the crossbar 3. The two straight grooves 306 slide inside the two guide posts 307 respectively. A motor 4 is installed on the top of the movable disk 305. The motor 4 is a high-temperature resistant motor. The windings are wrapped with special high-temperature resistant insulating materials. These materials have high thermal stability and insulation performance and can withstand high temperatures without damage to the insulation performance. For example, polyimide film can maintain good electrical insulation properties at high temperatures, preventing current leakage and short circuits. The output shaft of motor 4 is connected to a connecting column 401 via a coupling. A screening bucket 402 for screening trifluoroacetamide is installed at one end of the connecting column 401. Two arc-shaped plates 403 are connected to the outer periphery of the screening bucket 402. A fixing plate 404 is welded to the top of the crossbar 3. A guide bucket 406 for the trifluoroacetamide to enter after screening is connected to the bottom of the crossbar 3.

[0026] Trifluoroacetamide powder is added into the screening barrel 402. The motor 4 is turned on, and the motor 4 drives the connecting column 401 and the screening barrel 402 to rotate. The screening barrel 402 drives the arc plate 403 to rotate. The arc plate 403 contacts the edge of the fixed plate 404. The fixed plate 404 presses the arc plate 403. The arc plate 403 drives the screening barrel 402 and the moving disk 305 to move. The moving disk 305 drives the connecting block 304 and the moving plate 303 to move along the inside of the slide groove 301. The straight groove 306 limits the moving disk 305 to prevent the moving disk 305 from displacing in other directions. Due to the action of the spring 302, the moving disk 305 drives the screening barrel 402 to reciprocate. The screening barrel 402 screens the trifluoroacetamide.

[0027] A pressure relief pipe 105 is installed on the top of the operating platform 1, an operating plate 108 is installed on the side of the operating platform 1, a support foot 101 is welded to the bottom of the operating platform 1, a circulating water pump 102 is installed on the side of the support foot 101, and an inlet pipe 103 and an outlet pipe 104 are connected to the outer periphery of the circulating water pump 102.

[0028] The inner bottom wall of the drying protection tank 2 is provided with a liquid outlet 205. The top of the drying protection tank 2 is equipped with a top cover 201. The side of the drying protection tank 2 is equipped with a liquid heating pipe 106 and a side door 202. The top of the liquid heating pipe 106 is connected to a water pipe 107. A support block 405 is installed on the outer periphery of the water pipe 107. The drying tank 203 for drying trifluoroacetamide is installed inside the drying protection tank 2. The bottom of the drying tank 203 is equipped with a discharge control pipe 204. The dried trifluoroacetamide powder is discharged and collected from the discharge control pipe 204. The screened trifluoroacetamide powder enters the drying tank 203 through the guide hopper 406. The circulating water pump 102 circulates the liquid. The liquid heating pipe 106 heats the liquid. The heated liquid enters the space between the drying tank 203 and the drying protection tank 2 through the water pipe 107. The heating liquid between the drying protection tank 2 and the drying tank 203 dries the trifluoroacetamide in the drying tank 203. Hot water is used as the heat transfer medium. Water is heated to a certain temperature through the liquid heating pipe 106. The hot water circulates in the pipe. When the hot water carrying heat flows through the drying drum 203, the heat is transferred from the hot water to the outer wall of the drying drum 203 by heat conduction. Then, the outer wall radiates and convects the heat to the trifluoroacetamide material inside the drying drum 203, causing the moisture in the material to evaporate, thereby achieving the drying purpose.

[0029] Working principle

[0030] In operation, the trifluoroacetamide drying device first adds trifluoroacetamide powder into the screening barrel 402, then turns on the motor 4. The motor 4 drives the connecting column 401 and the screening barrel 402 to rotate, which in turn drives the arc plate 403 to rotate. The arc plate 403 contacts the edge of the fixed plate 404, and the fixed plate 404 presses against the arc plate 403. The arc plate 403 then moves the screening barrel 402 and the moving disc 305. The moving disc 305 moves the connecting block 304 and the moving plate 303 along the inside of the slide groove 301. The straight groove 306 limits the moving disc 305 to prevent it from moving in other directions. Due to the action of spring 302, moving disc 305 drives screening barrel 402 to reciprocate. Screening barrel 402 screens trifluoroacetamide. The screened trifluoroacetamide powder enters drying barrel 203 through guide bucket 406. Circulating water pump 102 circulates the liquid, and liquid heating pipe 106 heats the liquid. The heated liquid enters the space between drying barrel 203 and drying protection barrel 2 through water pipe 107. The heating liquid between drying protection barrel 2 and drying barrel 203 dries the trifluoroacetamide in drying barrel 203. The dried trifluoroacetamide powder is discharged and collected from discharge control pipe 204.

[0031] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying apparatus for trifluoroacetamide, comprising an operating table (1) for supporting the drying of trifluoroacetamide, characterized in that: A drying protection barrel (2) is installed on the top of the operating table (1). A horizontal bar (3) is welded to the vertical inner wall of the drying protection barrel (2). A sliding groove (301) is provided inside the horizontal bar (3). Two springs (302) are symmetrically connected inside the sliding groove (301). A movable plate (303) is connected to the ends of the two springs (302). A connecting block (304) is connected to the top of the movable plate (303). A movable plate is welded to the end of the connecting block (304) away from the movable plate (303). The movable disk (305) has two guide posts (307) symmetrically arranged on its surface. The top of the crossbar (3) is connected to two straight grooves (306), which slide inside the two guide posts (307) respectively. A motor (4) is installed on the top of the movable disk (305). The output shaft of the motor (4) is connected to a connecting post (401) through a coupling. A screening bucket (402) for screening trifluoroacetamide is installed at one end of the connecting post (401).

2. The drying apparatus for trifluoroacetamide according to claim 1, characterized in that: Two arc-shaped plates (403) are connected to the outer periphery of the screening barrel (402), a fixing plate (404) is welded to the top of the crossbar (3), and a guide bucket (406) for the trifluoroacetamide to enter after screening is connected to the bottom of the crossbar (3).

3. The drying apparatus for trifluoroacetamide according to claim 1, characterized in that: The top of the operating table (1) is equipped with a pressure relief pipe (105), the side of the operating table (1) is equipped with an operating plate (108), the bottom of the operating table (1) is welded with a support foot (101), and the side of the support foot (101) is equipped with a circulating water pump (102).

4. The drying apparatus for trifluoroacetamide according to claim 3, characterized in that: The inner bottom wall of the drying protection barrel (2) is provided with a liquid outlet hole (205), the top of the drying protection barrel (2) is provided with a top cover (201), and the side of the drying protection barrel (2) is provided with a liquid heating pipe (106) and a side door (202).

5. The drying apparatus for trifluoroacetamide according to claim 4, characterized in that: The top of the liquid heating tube (106) is connected to a water pipe (107), and a support block (405) is installed on the outer periphery of the water pipe (107).

6. The drying apparatus for trifluoroacetamide according to claim 4, characterized in that: The drying protection barrel (2) is equipped with a drying barrel (203) for drying trifluoroacetamide, and a discharge control pipe (204) is installed at the bottom of the drying barrel (203).

7. The drying apparatus for trifluoroacetamide according to claim 3, characterized in that: The circulating water pump (102) is connected to an inlet pipe (103) and an outlet pipe (104) on its outer periphery.

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