Vacuum device for rectification

Abstract

The utility model discloses a vacuum device for rectification. The vacuum device comprises a rectification box, a quick replacement mechanism and a liquid outlet frame, the left end of the upper surface of the rectification box is fixedly connected with an exhaust pipe, the exhaust pipe is communicated with the interior of the rectification box, the middle end of the rear side surface of the rectification box is fixedly connected with a liquid inlet valve, the lower end of the rear side surface of the rectification box is fixedly connected with a steam valve, and the upper end of the rear side surface of the rectification box is fixedly connected with a liquid return valve; the liquid return valve, the liquid inlet valve and the steam valve are communicated with the interior of the rectification box; the lower end of the outer surface of the rectification box is fixedly connected with a bracket; the quick replacement mechanism is arranged in the rectification box; the liquid outlet frame is fixedly connected to the lower end of the rectification box; the vacuum device for rectification comprises the workbench, the workbench is installed on the right side of the rectification box in a matched mode, the upper surface of the workbench is fixedly connected with the vacuum pump, and the vacuum device for rectification can rapidly take out a sieve plate frame so that cleaning can be facilitated, meanwhile, rapid locking and unlocking can be achieved, and manpower is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of pesticide vacuum rectification, in particular to a vacuum device for rectification. Background Technique

[0002] The significance of pesticides mainly lies in protecting food production by preventing and controlling pests and diseases, improving the yield and quality of crops, and ensuring food security. In agricultural production, pesticides are used to prevent, control or eliminate diseases, insects, weeds and other harmful organisms that endanger agriculture and forestry. Some pesticides can also regulate the growth of plants and insects. The use of pesticides can effectively control the spread of pests and diseases, reduce crop losses, improve the quality of agricultural products, increase the yield of crops. At the same time, the use of pesticides also contributes to the sustainable development of agriculture by protecting plant health and improving the stress resistance of crops to reduce the risks of agricultural production. In the production process of pesticides such as ethyl garlicin, vacuum rectification is required. Vacuum rectification refers to rectification under vacuum conditions to reduce the boiling point and make the substances produced in pesticide production easier to separate. Therefore, a vacuum device for rectification is needed.

[0003] Some traditional vacuum devices for rectifying pesticides such as ethyl garlicin extract the air inside the device through a vacuum pump.

[0004] The current vacuum devices for rectification have the following problems. For example, it is difficult to clean the sieve plate after separation, and it is easy to be contaminated when rectifying other substances. Therefore, we propose a vacuum device for rectification. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a vacuum device for rectification, which is convenient for cleaning the sieve plate and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a vacuum device for rectification, including a rectification box, a quick replacement mechanism and a liquid outlet rack;

[0007] Rectification box: The left end of its upper surface is fixedly connected with an exhaust pipe, and the exhaust pipe is communicated with the inside of the rectification box. The middle end of the rear side of the rectification box is fixedly connected with a liquid inlet valve, the lower end of the rear side of the rectification box is fixedly connected with a steam valve, and the upper end of the rear side of the rectification box is fixedly connected with a liquid return valve. The liquid return valve, the liquid inlet valve and the steam valve are all communicated with the inside of the rectification box. The lower end of the outer surface of the rectification box is fixedly connected with a bracket;

[0008] Quick replacement mechanism: It is arranged inside the rectification box;

[0009] Liquid outlet rack: It is fixedly connected to the lower end of the rectification box;

[0010] Among them: it includes a workbench, which is cooperatively installed on the right side of the rectification box. A vacuum pump is fixedly connected to the upper surface of the workbench, and the air inlet end of the vacuum pump is communicated with the inside of the rectification box through an air inlet pipe;

[0011] Among them: it includes a control switch, which is fixedly connected to the front side of the workbench. The input end of the control switch is electrically connected to an external power supply, and the output end of the control switch is electrically connected to the input end of the vacuum pump. During the separation process of substances such as ethyl garlicin in pesticide production, the sieve plate rack can be quickly taken out, facilitating cleaning. At the same time, it can be quickly locked and unlocked, saving manpower.

[0012] Furthermore, the quick replacement mechanism includes guide rails and a sieve plate rack. Guide rails evenly distributed are fixedly connected to both the left and right walls of the rectification box, and a sieve plate rack is slidably connected between the interiors of adjacent left and right guide rails, enabling the sieve plate rack to slide inside the guide rails.

[0013] Furthermore, the quick replacement mechanism further includes a cover plate and a limiting frame. Avoidance openings evenly distributed are provided on the front side of the rectification box. The rear ends of the sieve plate racks are slidably connected to the interiors of adjacent avoidance openings. Limiting frames are fixedly connected to the front sides of the avoidance openings. Cover plates are fixedly connected to the rear ends of the sieve plate racks, and the outer surfaces of the cover plates are inserted into the interiors of adjacent limiting frames, improving the sealing performance.

[0014] Furthermore, the quick replacement mechanism further includes a limiting plate, a limiting groove, and a knob. The limiting plates are rotatably connected to the front side of the rectification box. Limiting grooves are provided in the middle of the upper surfaces of the limiting frames. Locking grooves are provided in the middle of the upper surfaces of the cover plates. The locking grooves are vertically corresponding to the positions of adjacent limiting grooves. The lower ends of the limiting plates are located at the lower ends of the overall formed by the adjacent locking grooves and adjacent limiting grooves. Knobs are fixedly connected to the upper ends of the front sides of the limiting plates, enabling quick locking.

[0015] Furthermore, the quick replacement mechanism further includes a handle, which is fixedly connected to the middle of the front side of the cover plate, saving manpower.

[0016] Furthermore, a liquid outlet valve is fixedly connected to the lower end inside the liquid outlet rack, and a connecting flange is fixedly connected to the lower end of the liquid outlet valve, facilitating unified collection.

[0017] Furthermore, it also includes a sieve plate one, which is fixedly connected to the inside of the upper sieve plate rack. A sieve plate two is fixedly connected to the inside of the middle sieve plate rack. A sieve plate three is fixedly connected to the inside of the lower sieve plate rack, providing multi-stage screening.

[0018] Furthermore, evenly distributed liquid dropping racks are fixedly connected to the inside of the rectification box, and the lower surfaces of the liquid dropping racks are in contact with the upper surfaces of adjacent guide rails, preventing liquid residue.

[0019] Furthermore, a gas inlet is fixedly connected to the middle of the upper surface of the rectification box, and a rubber plug is inserted into the interior of the gas inlet, which is convenient to open after rectification to release the vacuum state.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows: This vacuum device for rectification has the following advantages:

[0021] When it is necessary to clean the first sieve plate, the second sieve plate and the third sieve plate, the staff rotates the knob. The rotation of the knob drives the limit plate to rotate, and the limit plate rotates away from the contact with the limit groove and the locking groove. Then, the staff pulls the handle to drive the cover plate to move backward. The backward movement of the cover plate drives the sieve plate frame to move backward. Then, the staff sequentially cleans the first sieve plate, the second sieve plate and the third sieve plate. Then, the sieve plate frame is quickly reset by the handle. Then, the knob is rotated to quickly reset the limit plate. During the separation process of substances produced by pesticides such as ethyl garlicin, locking and unlocking can be quickly performed, which is convenient for cleaning the sieve plate, saving manpower and improving work efficiency at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the present utility model;

[0023] Figure 2 It is a left-view partial sectional structural diagram of the present utility model;

[0024] Figure 3 It is an enlarged structural diagram at position A of the present utility model.

[0025] In the figure: 1 rectification box, 2 gas inlet, 3 rubber plug, 4 exhaust pipe, 5 quick replacement mechanism, 51 guide rail, 52 sieve plate frame, 53 cover plate, 54 limit plate, 55 limit groove, 56 knob, 57 handle, 58 limit frame, 6 liquid dropping frame, 7 first sieve plate, 8 second sieve plate, 9 third sieve plate, 10 liquid outlet frame, 11 support, 12 liquid outlet valve, 13 connecting flange, 14 return liquid valve, 15 inlet liquid valve, 16 steam valve, 17 workbench, 18 vacuum pump, 19 control switch. 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] Please refer to Figures 1-3 , this embodiment provides a technical solution: A vacuum device for rectification, including a rectification box 1, a quick replacement mechanism 5 and a liquid outlet frame 10;

[0028] Rectifying box 1: At the left end of its upper surface, an exhaust pipe 4 is fixedly connected. The exhaust pipe 4 is communicated with the inside of the rectifying box 1. At the middle end of the rear side of the rectifying box 1, a liquid inlet valve 15 is fixedly connected. At the lower end of the rear side of the rectifying box 1, a steam valve 16 is fixedly connected. At the upper end of the rear side of the rectifying box 1, a liquid return valve 14 is fixedly connected. The liquid return valve 14, the liquid inlet valve 15 and the steam valve 16 are all communicated with the inside of the rectifying box 1. At the lower end of the outer surface of the rectifying box 1, a bracket 11 is fixedly connected. Inside the rectifying box 1, uniformly distributed liquid dropping frames 6 are fixedly connected. The lower surfaces of the liquid dropping frames 6 are all in contact with the upper surfaces of the adjacent guide rails 51. At the middle part of the upper surface of the rectifying box 1, an air inlet 2 is fixedly connected. A rubber plug 3 is inserted into the inside of the air inlet 2;

[0029] Quick replacement mechanism 5: It is arranged inside the rectifying box 1. The quick replacement mechanism 5 includes guide rails 51 and a sieve plate frame 52. On the left and right walls of the rectifying box 1, uniformly distributed guide rails 51 are fixedly connected. Between the interiors of the adjacent left and right guide rails 51, a sieve plate frame 52 is slidably connected. The quick replacement mechanism 5 further includes a cover plate 53 and a limiting frame 58. On the front side of the rectifying box 1, uniformly distributed avoiding openings are provided. The rear ends of the sieve plate frames 52 are all slidably connected to the inside of the adjacent avoiding openings. On the front sides of the avoiding openings, limiting frames 58 are fixedly connected. The rear ends of the sieve plate frames 52 are all fixedly connected with cover plates 53. The outer surfaces of the cover plates 53 are all inserted into the inside of the adjacent limiting frames 58. The quick replacement mechanism 5 further includes limiting plates 54, limiting grooves 55 and knobs 56. The limiting plates 54 are all rotatably connected to the front side of the rectifying box 1. In the middle of the upper surfaces of the limiting frames 58, limiting grooves 55 are provided. In the middle of the upper surfaces of the cover plates 53, locking grooves are provided. The locking grooves and the adjacent limiting grooves 55 are vertically corresponding in position. The lower ends of the limiting plates 54 are all located at the lower end of the whole formed by the adjacent locking grooves and the adjacent limiting grooves 55. At the upper end of the front side of the limiting plates 54, knobs 56 are fixedly connected. The quick replacement mechanism 5 further includes handles 57. The handles 57 are all fixedly connected to the middle of the front side of the cover plates 53. It further includes a sieve plate one 7. The sieve plate one 7 is fixedly connected to the inside of the upper sieve plate frame 52. A sieve plate two 8 is fixedly connected to the inside of the middle sieve plate frame 52. A sieve plate three 9 is fixedly connected to the inside of the lower sieve plate frame 52. When it is necessary to clean the sieve plate one 7, the sieve plate two 8 and the sieve plate three 9, the staff rotates the knob 56. The rotation of the knob 56 drives the limiting plate 54 to rotate. The limiting plate 54 rotates away from contacting with the limiting groove 55 and the locking groove. Then the staff pulls the handle 57 to drive the cover plate 53 to move backward. The backward movement of the cover plate 53 drives the sieve plate frame 52 to move backward. Then the staff cleans the sieve plate one 7, the sieve plate two 8 and the sieve plate three 9 in sequence. Then the sieve plate frame 52 is quickly reset through the handle 57. Then the knob 56 is rotated to quickly reset the limiting plate 54. Thus, locking and unlocking can be quickly carried out, which is convenient for cleaning the sieve plates, saving manpower and improving work efficiency at the same time;

[0030] Liquid outlet rack 10: It is fixedly connected to the lower end of the rectification tank 1. The lower end inside the liquid outlet rack 10 is fixedly connected with a liquid outlet valve 12, and the lower end of the liquid outlet valve 12 is fixedly connected with a connecting flange 13;

[0031] Among them: It includes a workbench 17, the workbench 17 is fitted and installed on the right side of the rectification tank 1. The upper surface of the workbench 17 is fixedly connected with a vacuum pump 18, and the air inlet end of the vacuum pump 18 is communicated with the inside of the rectification tank 1 through an air inlet pipe;

[0032] Among them: It includes a control switch 19, the control switch 19 is fixedly connected to the front side of the workbench 17. The input end of the control switch 19 is electrically connected to an external power supply, and the output end of the control switch 19 is electrically connected to the input end of the vacuum pump 18.

[0033] The working principle of a vacuum device for rectification provided by the present utility model is as follows: During the vacuum rectification of the separation of substances produced in the production of pesticides such as ethyllicin, the staff first connects the condenser to the exhaust pipe 4. The staff sends the liquid to be rectified into the inside of the rectification tank 1 through the liquid inlet valve 15, and then the staff starts the vacuum pump 18 through the adjustment of the control switch 19. The vacuum pump 18 starts to evacuate the inside of the rectification tank 1. The liquid for producing pesticides such as ethyllicin to be rectified slides downward and successively passes through the first sieve plate 7, the second sieve plate 8, and the third sieve plate 9. The liquid for producing pesticides such as ethyllicin to be rectified passes through the sieve plates and leaves a liquid layer on the sieve plates. The excess liquid continues to slide downward, and then the staff sends steam into the inside of the rectification tank 1 through the steam valve 16. The steam starts to diffuse from bottom to top, and the diffused steam successively passes through the first sieve plate 7, the second sieve plate 8, and the third sieve plate 9, thus being dispersed into small airflows. The airflows are hot airflows. The hot airflows contact the liquid for producing pesticides such as ethyllicin to be rectified. The internal components of the liquid with a lower boiling point are vaporized and rise under the action of the pressure difference, while the liquid with a higher boiling point continues to slide downward after the liquid layer is broken. The gas rises through the exhaust pipe 4 and enters the condenser, and the liquid that has not been vaporized continues to fall into the inside of the rectification tank 1 and is uniformly collected through the liquid outlet valve 12, thus completing the vacuum rectification. When it is necessary to clean the first sieve plate 7, the second sieve plate 8, and the third sieve plate 9, the staff rotates the knob 56. The rotation of the knob 56 drives the limit plate 54 to rotate. The limit plate 54 rotates away from the contact with the limit groove 55 and the locking groove. Then the staff pulls the handle 57 to drive the cover plate 53 to move backward. The backward movement of the cover plate 53 drives the sieve plate rack 52 to move backward. Then the staff cleans the first sieve plate 7, the second sieve plate 8, and the third sieve plate 9 in sequence, and then makes the sieve plate rack 52 quickly reset through the handle 57, and then rotates the knob 56 to make the limit plate 54 quickly reset. Thus, locking and unlocking can be quickly carried out, which is convenient for cleaning the sieve plates, saving manpower and improving work efficiency at the same time.

[0034] It should be noted that the vacuum pump 18 disclosed in the above embodiments can be selected as XZ-0.5B, and a control button corresponding to the vacuum pump 18 and used to control its switch is provided on the control switch 19.

[0035] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A vacuum device for distillation, characterized in that: It comprises a distillation box (1), a quick-change mechanism (5) and a liquid outlet rack (10); A distillation box (1): an exhaust pipe (4) is fixedly connected to the left end of its upper surface, the exhaust pipe (4) is in communication with the interior of the distillation box (1), a liquid inlet valve (15) is fixedly connected to the middle end of the rear side surface of the distillation box (1), a steam valve (16) is fixedly connected to the lower end of the rear side surface of the distillation box (1), a liquid return valve (14) is fixedly connected to the upper end of the rear side surface of the distillation box (1), the liquid return valve (14), the liquid inlet valve (15) and the steam valve (16) are all in communication with the interior of the distillation box (1), and a bracket (11) is fixedly connected to the lower end of the outer surface of the distillation box (1); A quick replacement mechanism (5): arranged inside the rectification box (1); Liquid outlet rack (10): fixedly connected to the lower end of the rectification box (1); The workbench (17) is mounted on the right side of the distillation box (1). A vacuum pump (18) is fixedly connected to the upper surface of the workbench (17). The air inlet end of the vacuum pump (18) is connected to the interior of the distillation box (1) through an air inlet pipe. The control switch (19) is fixedly connected to the front side of the workbench (17), the input end of the control switch (19) is electrically connected to an external power supply, and the output end of the control switch (19) is electrically connected to the input end of the vacuum pump (18).

2. A vacuum device for distillation according to claim 1, characterized in that: The quick-change mechanism (5) comprises a guide rail (51) and a sieve plate frame (52); the left and right walls of the distillation box (1) are fixedly connected with evenly distributed guide rails (51); and the insides of the left and right adjacent guide rails (51) are slidably connected with the sieve plate frames (52).

3. A vacuum device for distillation according to claim 2, characterized in that: The quick-change mechanism (5) further comprises a cover plate (53) and a limiting frame (58); the front side of the distillation box (1) is provided with evenly distributed avoidance openings; the rear ends of the sieve plate frames (52) are slidably connected to the inside of adjacent avoidance openings; the front sides of the avoidance openings are fixedly connected to the limiting frame (58); the rear ends of the sieve plate frames (52) are fixedly connected to the cover plates (53); and the outer surfaces of the cover plates (53) are plugged into the inside of adjacent limit frames (58).

4. A vacuum device for distillation according to claim 3, characterized in that: The quick-change mechanism (5) further comprises a limit plate (54), a limit groove (55) and a knob (56); the limit plates (54) are rotatably connected to the front side of the distillation box (1); the limit grooves (55) are provided in the middle of the upper surface of the limit frame (58); the locking grooves are provided in the middle of the upper surface of the cover plate (53); the locking grooves correspond to the positions of adjacent limit grooves (55) in the upper and lower parts; the lower ends of the limit plates (54) are located at the lower inner ends of the whole formed by the adjacent locking grooves and the adjacent limit grooves (55); and the upper ends of the front side surfaces of the limit plates (54) are fixedly connected to the knobs (56).

5. A vacuum device for rectification according to claim 3, characterized in that: The quick-change mechanism (5) further comprises a handle (57), and the handle (57) is fixedly connected to the middle part of the front side surface of the cover plate (53).

6. A vacuum device for distillation according to claim 1, characterized in that: A liquid outlet valve (12) is fixedly connected to the lower end of the liquid outlet frame (10), and a connecting flange (13) is fixedly connected to the lower end of the liquid outlet valve (12).

7. A vacuum device for distillation according to claim 2, characterized in that: It also includes sieve plate one (7), wherein the sieve plate one (7) is fixedly connected to the interior of the upper sieve plate frame (52), the interior of the middle sieve plate frame (52) is fixedly connected to sieve plate two (8), and the interior of the lower sieve plate frame (52) is fixedly connected to sieve plate three (9).

8. A vacuum device for distillation according to claim 1, characterized in that: The interior of the rectification box (1) is fixedly connected with evenly distributed liquid drop racks (6), and the lower surfaces of the liquid drop racks (6) are in contact with the upper surfaces of adjacent guide rails (51).

9. A vacuum device for distillation according to claim 1, characterized in that: An air inlet (2) is fixedly connected to the middle of the upper surface of the rectification box (1), and a rubber plug (3) is inserted into the interior of the air inlet (2).

Images