Rectification device for refining high-purity o-chlorotoluene

Abstract

The utility model provides a rectification device for refining high-purity o-chlorotoluene, and relates to the technical field of rectification devices. The placing base is of a rectangular block structure, and a base body of an annular structure is welded to the left side of the top end face of the placing base. Through the arrangement of the seat body and the electric cylinders, on one hand, when the cover plate needs to be opened, a fixing screw rod on the cover plate is unscrewed, the two electric cylinders are controlled to stretch, and when the two electric cylinders stretch, the cover plate can be jacked up, and opening of the cover plate is achieved; on the other hand, when the spray head seat needs to be maintained, the two electric cylinders are directly controlled to stretch, the distillation barrel is separated from the seat body under the support of the two electric cylinders, at the moment, the spray head seat can be conveniently maintained, and the practicability is high; through the arrangement of the first blocking seat and the second blocking seat, the sealing performance between the distillation barrel and the seat body can be improved, heat dissipation is avoided, and the heating efficiency is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of distillation devices, and more specifically, particularly relates to a distillation device for refining high-purity o-chlorotoluene. Background Art

[0002] o-Chlorotoluene, also known as 2-chlorotoluene, is an organic compound with the chemical formula C7H7C l. It is a colorless and transparent liquid. It needs to be distilled during the preparation process of o-chlorotoluene.

[0003] The heating part of the existing large-scale distillation device is mostly located at the bottom of the distillation barrel, which is not convenient to repair under the cover of the distillation barrel; when replacing the filter cotton, the cover needs to be opened, and for large-scale distillation equipment, the cover is not convenient to open. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a distillation device for refining high-purity o-chlorotoluene, so as to solve the problem that the heating part of the existing large-scale distillation device is mostly located at the bottom of the distillation barrel, which is not convenient to repair under the cover of the distillation barrel; when replacing the filter cotton, it is necessary to open the cover plate, and for large-scale distillation equipment, the cover plate is not convenient to open.

[0005] The purpose and effect of the distillation device for refining high-purity o-chlorotoluene in the utility model are achieved by the following specific technical means:

[0006] A distillation device for refining high-purity o-chlorotoluene comprises a placement seat; the placement seat is a rectangular block structure, and a seat body with an annular structure is welded on the left side of the top surface of the placement seat.

[0007] Furthermore, a first stopper with an annular structure is welded on the inner wall of the seat body, and a distillation part is placed on the first stopper. The distillation part consists of a distillation barrel, a cover plate, a liquid inlet pipe, a discharge pipe, a second stopper, a third stopper and a filter box. The distillation barrel is placed on the first stopper, and a cover plate is fixed to the top of the distillation barrel by a screw. The cover plate is a stepped structure, and the outer wall of the lower half of the cover plate contacts the inner wall of the distillation barrel, and the step of the cover plate contacts the top surface of the distillation barrel.

[0008] Furthermore, a liquid inlet pipe and a discharge pipe are welded to the distillation barrel, and a second stopper is welded to the outer wall of the distillation barrel, and the bottom end surface of the second stopper is in contact with the top end surface of the seat body.

[0009] Furthermore, a third stopper with an annular structure is welded on the inner wall of the distillation barrel, a filter box is fixed on the top of the third stopper, and the filter box is filled with filter cotton.

[0010] Furthermore, the height of the filter box is higher than the liquid inlet pipe, and the height of the filter box is lower than the discharge pipe.

[0011] Furthermore, a heating part is fixed on the seat body, and the heating part consists of a connecting pipe and a nozzle seat. A connecting pipe is welded on the seat body, and the left end of the connecting pipe is connected to the gas supply pipeline. A nozzle seat is welded on the right end of the connecting pipe. The nozzle seat is an annular structure, and the nozzle seat is located inside the seat body. The nozzle seat is located below the distillation barrel. Nozzles are installed in a ring array on the nozzle seat, and a pulse igniter for ignition is installed on the nozzle seat.

[0012] Furthermore, two electric cylinders are fixed on the top surface of the placement seat, and the two electric cylinders are electrically connected to an external control switch, and the upper ends of the two electric cylinders are fixed on the cover plate.

[0013] Furthermore, a seat body, a distillation part, a heating part and two electric cylinders are installed on the right side of the placement seat, the discharge pipe of the left distillation barrel is connected to the right distillation barrel, and the discharge pipe of the right distillation barrel is connected to an external collection box.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The present application adopts the arrangement of the seat body and the electric cylinder. On the one hand, when it is necessary to open the cover, the fixing screw on the cover is loosened to control the extension of the two electric cylinders. When the two electric cylinders are extended, the cover can be lifted up to realize the opening of the cover. On the other hand, when it is necessary to maintain the nozzle seat, the two electric cylinders can be directly controlled to extend. With the support of the two electric cylinders, the distillation barrel is separated from the seat body. At this time, the nozzle seat can be conveniently maintained, which is highly practical.

[0016] The present application adopts the setting of the cover plate. Since the cover plate has a stepped structure, the outer wall of the lower half of the cover plate contacts the inner wall of the distillation barrel, and the step of the cover plate contacts the top surface of the distillation barrel. During use, the sealing performance between the cover plate and the distillation barrel can be improved by improving the cover plate structure.

[0017] The present application can improve the sealing performance between the distillation barrel and the seat body by setting the first stop seat and the second stop seat, avoid heat dissipation, and ensure heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is an axial structural schematic diagram of a rectification device for refining high-purity o-chlorotoluene.

[0019] Figure 2 The utility model is a schematic diagram of the main structure of a distillation device for refining high-purity o-chlorotoluene.

[0020] Figure 3 The utility model is a schematic diagram of the axial structure of a rectification device for refining high-purity o-chlorotoluene after partial cutting.

[0021] Figure 4 This utility model Figure 3 Schematic diagram of the main structure.

[0022] Figure 5 It is an axial structural schematic diagram of the seat body and the heating part of the utility model.

[0023] Figure 6 It is an axial structural schematic diagram of the filter box of the utility model.

[0024] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0025] 1. Placement seat; 2. Seat body; 201. First stop seat; 3. Distillation part; 301. Distillation barrel; 302. Cover plate; 303. Liquid inlet pipe; 304. Discharge pipe; 305. Second stop seat; 306. Third stop seat; 307. Filter box; 4. Heating part; 401. Connecting pipe; 402. Nozzle seat; 5. Electric cylinder. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of 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.

[0027] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by ordinary technicians in the field to which the utility model belongs. Similar words such as "one", "an" or "the" used in the patent application specification and claims of the utility model do not indicate a quantitative limitation, but indicate the existence of at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0029] Embodiment 1:

[0030] As attached Figure 1 To Attachment Figure 6 As shown:

[0031] The utility model provides a distillation device for refining high-purity o-chlorotoluene, comprising a placement seat 1; the placement seat 1 is a rectangular block structure, and a seat body 2 with an annular structure is welded on the left side of the top surface of the placement seat 1.

[0032] Among them, a first stopper 201 with an annular structure is welded on the inner wall of the seat body 2, and a distillation part 3 is placed on the first stopper 201. The distillation part 3 is composed of a distillation barrel 301, a cover plate 302, a liquid inlet pipe 303, a discharge pipe 304, a second stopper 305, a third stopper 306 and a filter box 307. The distillation barrel 301 is placed on the first stopper 201, and a cover plate 302 is fixed to the top of the distillation barrel 301 by a screw. The cover plate 302 is a stepped structure, and the outer wall of the lower half of the cover plate 302 contacts the inner wall of the distillation barrel 301, and the step of the cover plate 302 contacts the top surface of the distillation barrel 301. During use, the sealing performance of the cover plate 302 and the distillation barrel 301 can be improved by improving the structure of the cover plate 302.

[0033] Among them, a liquid inlet pipe 303 and a discharge pipe 304 are welded on the distillation barrel 301, and a second stopper 305 is welded on the outer wall of the distillation barrel 301. The bottom end face of the second stopper 305 is in contact with the top end face of the seat body 2. During use, the sealing performance between the seat body 2 and the distillation barrel 301 can be improved through the contact between the bottom end face of the second stopper 305 and the top end face of the seat body 2.

[0034] Among them, a third stopper 306 with an annular structure is welded on the inner wall of the distillation barrel 301, and a filter box 307 is fixed on the top of the third stopper 306, and the filter box 307 is filled with filter cotton.

[0035] The height of the filter box 307 is higher than the liquid inlet pipe 303 , and the height of the filter box 307 is lower than the discharge pipe 304 .

[0036] Among them, a heating part 4 is fixed on the seat body 2, and the heating part 4 is composed of a connecting pipe 401 and a nozzle seat 402. A connecting pipe 401 is welded on the seat body 2, and the left end of the connecting pipe 401 is connected to the gas supply pipeline, and a nozzle seat 402 is welded on the right end of the connecting pipe 401. The nozzle seat 402 is an annular structure, and the nozzle seat 402 is located inside the seat body 2. The nozzle seat 402 is located below the distillation barrel 301. Nozzles are installed in a circular array on the nozzle seat 402, and a pulse igniter for ignition is installed on the nozzle seat 402. When the distillation barrel 301 needs to be heated, the valve of the gas supply pipeline is connected, and the gas sprayed from the nozzle is ignited. At this time, the electric gas sprayed from the nozzle can heat the distillation barrel 301.

[0037] Among them, two electric cylinders 5 are fixed on the top surface of the placement seat 1, and the two electric cylinders 5 are electrically connected to the external control switch. The upper ends of the two electric cylinders 5 are fixed on the cover plate 302. When the cover plate 302 needs to be opened, the fixing screws on the cover plate 302 are loosened to control the two electric cylinders 5 to extend. When the two electric cylinders 5 are extended, the cover plate 302 can be lifted up, thereby realizing the opening of the cover plate 302; when the nozzle seat 402 needs to be maintained, the two electric cylinders 5 can be directly controlled to extend. Under the support of the two electric cylinders 5, the distillation barrel 301 is separated from the seat body 2, and the nozzle seat 402 can be conveniently maintained at this time.

[0038] Embodiment 2:

[0039] On the basis of Example 1, a seat body 2, a distillation part 3, a heating part 4 and two electric cylinders 5 are also installed on the right side of the placement seat 1, the discharge pipe 304 of the left distillation barrel 301 is connected to the right distillation barrel 301, and the discharge pipe 304 of the right distillation barrel 301 is connected to an external collection box. During use, the purity can be improved through double distillation of the two distillation barrels 301.

[0040] Working principle: the liquid for the distillation of o-chlorotoluene is added into the left distillation barrel 301 through the liquid inlet pipe 303, and the nozzle on the nozzle seat 402 is ignited. At this time, the liquid in the distillation barrel 301 is heated, and the heated gas passes through the filter box 307 in the left distillation barrel 301, and is discharged into the right distillation barrel 301 through the discharge pipe 304. When distilling in the right distillation barrel 301, the gas passes through the filter box 307 in the right distillation barrel 301 and is finally discharged into the collection box through the discharge pipe 304; when it is necessary to open the cover plate 302, loosen the fixing screw on the cover plate 302, control the two electric cylinders 5 to extend, and when the two electric cylinders 5 extend, the cover plate 302 can be lifted up, thereby realizing the opening of the cover plate 302; when it is necessary to maintain the nozzle seat 402, directly control the two electric cylinders 5 to extend, and the distillation barrel 301 is separated from the seat body 2 under the support of the two electric cylinders 5.

[0041] Although the present application has been described with reference to the above-mentioned embodiments, it will be appreciated by those skilled in the art that various changes may be made without departing from the concept and scope of the present application as defined by the appended claims. Although this specification contains many specific implementation details, these should not be interpreted as limitations on the scope of the present application, but as descriptions of features directed to specific embodiments. The scope of the present application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A rectification device for refining high-purity o-chlorotoluene, characterized in that: The device comprises a placement seat (1); the placement seat (1) is a rectangular block structure, a seat body (2) with an annular structure is welded on the left side of the top surface of the placement seat (1); a first stopper (201) with an annular structure is welded on the inner wall of the seat body (2), a distillation part (3) is placed on the first stopper (201), and the distillation part (3) is composed of a distillation barrel (301), a cover plate (302), a liquid inlet pipe (303), a discharge pipe (304), a second stopper (305), a third stopper (306) and a filter box (307), and the distillation barrel (301) is placed on the first stopper (201). On the first stopper (201), a cover plate (302) is fixed to the top of the distillation barrel (301) by a screw, and the cover plate (302) is a stepped structure. The outer wall of the lower half of the cover plate (302) contacts the inner wall of the distillation barrel (301), and the step of the cover plate (302) contacts the top surface of the distillation barrel (301); a liquid inlet pipe (303) and a discharge pipe (304) are welded to the distillation barrel (301), and a second stopper (305) is welded to the outer wall of the distillation barrel (301), and the bottom end surface of the second stopper (305) contacts the top surface of the seat body (2).

2. A rectification device for refining high-purity o-chlorotoluene as claimed in claim 1, characterized in that: A third stopper (306) with an annular structure is welded on the inner wall of the distillation barrel (301), a filter box (307) is fixed on the top of the third stopper (306), and the filter box (307) is filled with filter cotton.

3. A rectification device for refining high-purity o-chlorotoluene as claimed in claim 2, characterized in that: The height of the filter box (307) is higher than the liquid inlet pipe (303), and the height of the filter box (307) is lower than the discharge pipe (304).

4. A distillation device for refining high-purity o-chlorotoluene as claimed in claim 3, characterized in that: A heating part (4) is fixed on the seat body (2), and the heating part (4) is composed of a connecting pipe (401) and a nozzle seat (402). A connecting pipe (401) is welded on the seat body (2), and the left end of the connecting pipe (401) is connected to the gas supply pipeline. A nozzle seat (402) is welded on the right end of the connecting pipe (401). The nozzle seat (402) is an annular structure. The nozzle seat (402) is located inside the seat body (2). The nozzle seat (402) is located below the distillation barrel (301). Nozzles are installed in a ring array on the nozzle seat (402), and a pulse igniter for ignition is installed on the nozzle seat (402).

5. A distillation device for refining high-purity o-chlorotoluene as claimed in claim 4, characterized in that: Two electric cylinders (5) are fixed on the top surface of the placement seat (1), and the two electric cylinders (5) are electrically connected to an external control switch. The upper ends of the two electric cylinders (5) are fixed on the cover plate (302).

6. A distillation device for refining high-purity o-chlorotoluene as claimed in claim 5, characterized in that: A seat body (2), a distillation part (3), a heating part (4) and two electric cylinders (5) are also installed on the right side of the placement seat (1); the discharge pipe (304) of the left distillation barrel (301) is connected to the right distillation barrel (301), and the discharge pipe (304) of the right distillation barrel (301) is connected to an external collection box.

Images