Purification device for chemical production

Abstract

The utility model discloses a purification device for chemical production. The purification device comprises a base, a purification mechanism and a lifting mechanism, a bracket is arranged on the rear side of the upper surface of the base; the purification mechanism comprises a heating tank, a valve, a connecting pipeline, a filtering bin and a cooling tank, the heating tank is fixedly connected to the upper end of the support, an end cover is connected to the upper end of the heating tank through a bolt, a feeding opening is formed in the rear side of the end cover, a supporting seat is arranged at the lower end of the outer side of the cooling tank, and the supporting seat is connected to the front side of the upper surface of the base through a bolt; a filtering bin is arranged on the rear side of the upper end of the cooling tank, the bottom wall of the filtering bin is communicated with the upper end of the cooling tank, the upper end of the filtering bin is communicated with the lower end of the heating tank through a connecting pipeline, and a valve is arranged at the upper end of the connecting pipeline; according to the purification device for chemical production, pesticide is transferred from the heating tank to the cooling tank after being heated, and meanwhile, a solution is filtered, so that the pesticide is conveniently, efficiently and rapidly purified.

Description

Technical Field

[0001] The utility model relates to the technical field of purification for chemical production, in particular to a purification device for chemical production. Background Art

[0002] Separation and purification is an essential process for pesticide formula analysis. Whether it is a commercial pesticide sample or a residual pesticide sample, it is not a pure pesticide component. The pesticide and impurities should be separated as much as possible to achieve accurate analysis results. Different pesticide samples have different purification methods. The accuracy of general residue analysis directly depends on the preparation and purification of standard products, which is an essential skill for pesticide residue analysis, especially when there are no pure products or standard products.

[0003] When preparing standard samples of solid pesticides, they are purified by recrystallization: in a certain solvent, the solubility of solid pesticides changes greatly with temperature. The saturated solution at a higher temperature is filtered while hot to remove insoluble impurities, and the mother liquor is cooled. At a lower temperature, the pesticide is precipitated as crystals and filtered, and the soluble impurities are removed by leaving the mother liquor. However, the purification of solid pesticides requires multiple container changes and multiple filtrations, and the process is more complicated and the efficiency is lower. For this reason, we propose a purification device for chemical production. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a purification device for chemical production. By heating the pesticide and transferring it from a heating tank to a cooling tank, and filtering the solution at the same time, the pesticide can be purified efficiently and quickly, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a purification device for chemical production, comprising a base, a purification mechanism and a lifting mechanism;

[0006] Base: A bracket is provided on the rear side of its upper surface;

[0007] Purification mechanism: it includes a heating tank, a valve, a connecting pipe, a filtering bin and a cooling tank, the upper end of the bracket is fixedly connected with the heating tank, the upper end of the heating tank is connected with an end cover by bolts, a feed port is provided on the rear side of the end cover, a support seat is provided at the lower end of the outer side of the cooling tank, the support seat is connected to the front side of the upper surface of the base by bolts, a filtering bin is provided on the rear side of the upper end of the cooling tank, the bottom wall of the filtering bin is connected with the upper end of the cooling tank, the upper end of the filtering bin and the lower end of the heating tank are connected by a connecting pipe, and a valve is provided on the upper end of the connecting pipe;

[0008] Lifting mechanism: It is arranged at the upper end of the cooling tank. It transfers the pesticide from the heating tank to the cooling tank after heating it and filters the solution at the same time, so as to purify the pesticide efficiently and quickly.

[0009] Furthermore, it also includes a controller, which is arranged on the upper surface of the base, and the input end of the controller is electrically connected to an external power supply to control the electrical appliances of the device.

[0010] Furthermore, the purification mechanism also includes a heating tube. A heating tube is arranged in the middle of the lower surface of the end cover, and evenly distributed semiconductor refrigeration plates are arranged on the lower surface of the support seat. The cooling ends of the semiconductor refrigeration plates are in contact with the lower end of the cooling tank. The input ends of the heating tube and the semiconductor refrigeration plates are electrically connected to the output end of the controller to achieve temperature control of the solution.

[0011] Furthermore, the purification mechanism also includes filter screen 1, filter screen 2 and a collecting port. Filter screen 1 is placed on the bottom wall of the filtration bin, and filter screen 2 is placed on the bottom wall of the heating tank. A collecting port is provided at the front end of filter screen 2 to filter impurities.

[0012] Furthermore, the lifting mechanism includes a lifting rod, a motor, a lifting ear, a sliding column, a screw rod and a fixed seat. The left and right ends of the bottom wall of the filter screen 2 are fixedly connected with the lifting rod, the left and right sides of the upper end of the cooling tank are provided with lifting ears, the upper surfaces of the lifting ears are fixedly connected with front and rear symmetrical sliding columns, the upper ends of the front and rear adjacent sliding columns are fixedly connected with a fixed seat, the fixed seat and the vertically adjacent lifting ears are rotatably connected with a screw rod, the screw rod is respectively located between the two sliding columns on the same side of the left and right, the outer side of the screw rod is threadedly connected with a connecting block, the connecting block is respectively fixedly connected to the upper end of the adjacent lifting rod, the lower end of the lifting ear is fixedly connected with the motor, the output shaft of the motor is respectively fixedly connected to the lower end of the vertically adjacent screw rod, the input end of the motor is electrically connected to the output end of the controller, so as to realize the lifting of the filter screen 2.

[0013] Furthermore, a temperature sensor is provided on the lower surface of the end cover, a probe of the temperature sensor is located inside the heating tank, and the temperature sensor is bidirectionally electrically connected to the controller to detect the temperature of the solution inside the heating tank.

[0014] Furthermore, a protective frame is provided at the upper end of the bracket, and the heating tank is located inside the protective frame to protect the heating tank.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the purification device for chemical production has the following advantages:

[0016] Workers feed the pesticides to be purified and related solutions from the feed port, and control the heating tube through the controller. The heating tube heats the solution inside the heating tank. The temperature sensor measures the temperature of the solution in real time and feeds back to the controller. The control panel of the controller displays the current solution temperature. When the required temperature is reached, wait for a certain period of time until the pesticide is completely dissolved in the solution, then open the valve, and the solution enters the filter chamber from the connecting pipe. The filter removes insoluble impurities, and the filtered solution enters the cooling tank. The controller turns on the semiconductor refrigeration sheet, and the cooling ends of the semiconductor refrigeration sheets are in contact with the lower end of the cooling tank, and the solution The temperature drops rapidly, and the pesticide precipitates as crystals. After waiting for a certain period of time again, the controller controls the motor, and the output shaft of the motor drives the vertically adjacent screws to rotate, and the screws drive the adjacent connecting blocks and lifting rods to rise. The sliding column makes the rotation of the screws more stable, and the lifting rods on both sides lift the filter screen 2, and the filter screen 2 separates the pesticide crystals from the solution and takes them out. The workers recycle the pesticide crystals through the collection port to purify the pesticide. The device can realize the process of heating-filtering-cooling-purification of pesticide purification at one time, avoiding the problem of multiple replacement of containers and filtration during purification, thereby improving the efficiency of pesticide purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0019] In the figure: 1 base, 2 purification mechanism, 21 heating tank, 22 heating tube, 23 valve, 24 connecting pipe, 25 filter bin, 26 filter screen 1, 27 cooling tank, 28 filter screen 2, 29 collecting port, 3 lifting mechanism, 31 lifting rod, 32 motor, 33 lifting ear, 34 sliding column, 35 screw rod, 36 fixing seat, 4 protective frame, 5 controller, 6 end cover, 7 semiconductor refrigeration plate, 8 support seat, 9 bracket, 10 temperature sensor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2 , This embodiment provides a technical solution: a purification device for chemical production, comprising a base 1, a purification mechanism 2 and a lifting mechanism 3;

[0022] Base 1: A bracket 9 is provided on the rear side of its upper surface;

[0023] Purification mechanism 2: It includes a heating tank 21, a valve 23, a connecting pipe 24, a filtering chamber 25 and a cooling tank 27. The upper end of the bracket 9 is fixedly connected with the heating tank 21, and the upper end of the heating tank 21 is connected with the end cover 6 by bolts. The rear side of the end cover 6 is provided with a feed inlet. The lower end of the outer side of the cooling tank 27 is provided with a support seat 8, and the support seat 8 is connected to the front side of the upper surface of the base 1 by bolts. The rear side of the upper end of the cooling tank 27 is provided with a filtering chamber 25, and the bottom wall of the filtering chamber 25 is connected to the upper end of the cooling tank 27. The upper end of the filtering chamber 25 and the heating tank 2 1 is connected through a connecting pipe 24, a valve 23 is provided at the upper end of the connecting pipe 24, the purification mechanism 2 also includes a heating pipe 22, a heating pipe 22 is provided in the middle of the lower surface of the end cover 6, and a uniformly distributed semiconductor refrigeration sheet 7 is provided on the lower surface of the support seat 8, the cooling end of the semiconductor refrigeration sheet 7 is in contact with the lower end of the cooling tank 27, the input end of the heating pipe 22 and the semiconductor refrigeration sheet 7 are electrically connected to the output end of the controller 5, the purification mechanism 2 also includes a filter screen 1 26, a filter screen 28 and a collection port 29, the filter screen 1 26 is placed in the filter bin The bottom wall of the heating tank 25 is provided, the filter screen 28 is placed on the bottom wall of the heating tank 21, the front end of the filter screen 28 is provided with a collecting port 29, the lower surface of the end cover 6 is provided with a temperature sensor 10, the probe of the temperature sensor 10 is located inside the heating tank 21, the temperature sensor 10 is bidirectionally electrically connected with the controller 5, the upper end of the bracket 9 is provided with a protective frame 4, the heating tank 21 is located inside the protective frame 4, the worker feeds the pesticide to be purified and the related solution from the feed port, and controls the heating tube 22 through the controller 5, and the heating tube 22 heats the solution inside the heating tank 21, The temperature sensor 10 measures the temperature of the solution in real time and feeds back to the controller 5. The control panel of the controller 5 displays the current solution temperature. When the required temperature is reached, wait for a certain time until the pesticide is completely dissolved in the solution, then open the valve 23, the solution enters the filter bin 25 from the connecting pipe 24, the filter screen 26 filters and removes insoluble impurities, and the filtered solution enters the cooling tank 27. The controller 5 turns on the semiconductor refrigeration sheet 7, and the cooling ends of the semiconductor refrigeration sheet 7 are in contact with the lower end of the cooling tank 27. The solution temperature drops rapidly, and the pesticide precipitates as crystals.

[0024] Lifting mechanism 3: It is arranged at the upper end of the cooling tank 27. The lifting mechanism 3 includes a lifting rod 31, a motor 32, a lifting ear 33, a sliding column 34, a screw 35 and a fixed seat 36. The left and right ends of the bottom wall of the filter screen 28 are fixedly connected with the lifting rod 31. The left and right sides of the upper end of the cooling tank 27 are provided with lifting ears 33. The upper surfaces of the lifting ears 33 are fixedly connected with front and rear symmetrical sliding columns 34. The upper ends of the front and rear adjacent sliding columns 34 are fixedly connected with a fixed seat 36. The fixed seat 36 and the vertically adjacent lifting ears 33 are rotatably connected with a screw 35. The screw 35 is respectively located between the two sliding columns 34 on the same side of the left and right. The outer side of the screw 35 is threadedly connected with a connecting block, which is respectively connected to the adjacent The upper end of the lifting rod 31 is fixedly connected, and the lower end of the lifting ear 33 is fixedly connected with a motor 32. The output shaft of the motor 32 is fixedly connected to the lower end of the vertically adjacent screw rod 35, and the input end of the motor 32 is electrically connected to the output end of the controller 5. After waiting for a certain period of time, the controller 5 controls the motor 32, and the output shaft of the motor 32 drives the vertically adjacent screw rods 35 to rotate, and the screw rods 35 drive the adjacent connecting blocks and the lifting rod 31 to rise. The sliding column 34 makes the rotation of the screw rod 35 more stable, and the lifting rods 31 on both sides lift the filter screen 28, and the filter screen 28 separates the pesticide crystals from the solution and takes them out. The workers recycle the pesticide crystals through the collecting port 29 to achieve the purification of the pesticide.

[0025] Wherein: it also includes a controller 5, which is arranged on the upper surface of the base 1, and the input end of the controller 5 is electrically connected to an external power supply.

[0026] The working principle of a purification device for chemical production provided by the utility model is as follows: workers feed the pesticides to be purified and related solutions from the feed port, and the heating tube 22 is controlled by the controller 5. The heating tube 22 heats the solution inside the heating tank 21. The temperature sensor 10 measures the temperature of the solution in real time and feeds back to the controller 5. The control panel of the controller 5 displays the current solution temperature. When the required temperature is reached, wait for a certain time until the pesticide is completely dissolved in the solution, then open the valve 23, and the solution enters the filter bin 25 from the connecting pipe 24. The filter screen 26 filters and removes insoluble impurities, and the filtered solution enters the cooling tank Inside the cooling tank 27, the controller 5 turns on the semiconductor refrigeration sheet 7, and the cooling ends of the semiconductor refrigeration sheet 7 are in contact with the lower end of the cooling tank 27. The temperature of the solution drops rapidly, and the pesticide precipitates as crystals. After waiting for a certain period of time again, the controller 5 controls the motor 32, and the output shafts of the motor 32 respectively drive the vertically adjacent screw rods 35 to rotate, and the screw rods 35 drive the adjacent connecting blocks and the lifting rods 31 to rise. The sliding column 34 makes the rotation of the screw rods 35 more stable, and the lifting rods 31 on both sides lift the filter screen 28, and the filter screen 28 separates the pesticide crystals from the solution and takes them out. The workers recycle the pesticide crystals through the collecting port 29 to achieve the purification of the pesticide.

[0027] It is worth noting that the controller 5 disclosed in the above embodiment can use EX3G-70KH-38MT PLC controller, the motor 32 can use M1233071 stepper motor, the temperature sensor 10 can use PT100 temperature sensor, and the controller 5 controls the motor 32 and the temperature sensor 10 using methods commonly used in the prior art.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A purification device for chemical production, characterized in that: It comprises a base (1), a purification mechanism (2) and a lifting mechanism (3); Base (1): A bracket (9) is provided on the rear side of the upper surface thereof; The purification mechanism (2) comprises a heating tank (21), a valve (23), a connecting pipe (24), a filtering chamber (25) and a cooling tank (27); the upper end of the bracket (9) is fixedly connected to the heating tank (21); the upper end of the heating tank (21) is connected to an end cover (6) by bolts; a feed port is provided on the rear side of the end cover (6); a support seat (8) is provided at the lower end of the outer side of the cooling tank (27); the support seat (8) is connected to the front side of the upper surface of the base (1) by bolts; a filtering chamber (25) is provided on the rear side of the upper end of the cooling tank (27); the bottom wall of the filtering chamber (25) is connected to the upper end of the cooling tank (27); the upper end of the filtering chamber (25) and the lower end of the heating tank (21) are connected by a connecting pipe (24); the upper end of the connecting pipe (24) is provided with a valve (23); Lifting mechanism (3): It is arranged at the upper end of the cooling tank (27).

2. A purification device for chemical production according to claim 1, characterized in that: It also includes a controller (5), which is arranged on the upper surface of the base (1), and the input end of the controller (5) is electrically connected to an external power supply.

3. A purification device for chemical production according to claim 2, characterized in that: The purification mechanism (2) further comprises a heating tube (22), a heating tube (22) being arranged in the middle of the lower surface of the end cover (6), and semiconductor refrigeration sheets (7) being evenly distributed being arranged on the lower surface of the support seat (8), the refrigeration ends of the semiconductor refrigeration sheets (7) being in contact with the lower end of the cooling tank (27), and the input ends of the heating tube (22) and the semiconductor refrigeration sheets (7) being electrically connected to the output end of the controller (5).

4. A purification device for chemical production according to claim 2, characterized in that: The purification mechanism (2) further comprises a filter screen 1 (26), a filter screen 2 (28) and a collecting port (29), wherein the filter screen 1 (26) is placed on the bottom wall of the filtering bin (25), the filter screen 2 (28) is placed on the bottom wall of the heating tank (21), and the collecting port (29) is provided at the front end of the filter screen 2 (28).

5. A purification device for chemical production according to claim 4, characterized in that: The lifting mechanism (3) comprises a lifting rod (31), a motor (32), a lifting ear (33), a sliding column (34), a screw rod (35) and a fixing seat (36); the left and right ends of the bottom wall of the second filter screen (28) are fixedly connected to the lifting rod (31); the left and right sides of the upper end of the cooling tank (27) are provided with lifting ears (33); the upper surfaces of the lifting ears (33) are fixedly connected to sliding columns (34) symmetrical in front and back; the upper ends of the sliding columns (34) adjacent to the front and back are fixedly connected to the fixing seat (36); the fixing seat (36) ) and the vertically adjacent lifting ears (33) are rotatably connected with a screw rod (35), the screw rod (35) is respectively located between two sliding columns (34) on the same side on the left and right, the outer part of the screw rod (35) is threadedly connected with a connecting block, the connecting block is respectively fixedly connected to the upper end of the adjacent lifting rod (31), the lower end of the lifting ears (33) is fixedly connected with a motor (32), the output shaft of the motor (32) is respectively fixedly connected to the lower end of the vertically adjacent screw rod (35), and the input end of the motor (32) is electrically connected to the output end of the controller (5).

6. A purification device for chemical production according to claim 2, characterized in that: A temperature sensor (10) is provided on the lower surface of the end cover (6); a probe of the temperature sensor (10) is located inside the heating tank (21); and the temperature sensor (10) is bidirectionally electrically connected to the controller (5).

7. A purification device for chemical production according to claim 1, characterized in that: A protective frame (4) is provided at the upper end of the support (9), and the heating tank (21) is located inside the protective frame (4).

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