Rectifying tower device for preparing isopropyl hydroxylamine

Abstract

The utility model provides a rectifying tower device for preparing isopropyl hydroxylamine, which comprises an upper tower shell and a lower tower shell, the upper tower shell is arranged on the upper side of the lower tower shell, a connecting pipe is arranged between the upper tower shell and the lower tower shell, the outer end of the connecting pipe is integrally connected with a connecting ring, and the connecting ring is arranged between the upper tower shell and the lower tower shell. A first filler plate is fixedly connected in the connecting pipe, a second filler plate is arranged in the lower tower shell, a third filler plate is arranged in the upper tower shell, the second filler plate and the third filler plate are respectively arranged on the lower side and the upper side of the connecting pipe, and the second filler plate can move up and down along the lower tower shell; and the third filler plate can move up and down along the upper tower shell. By means of a combined assembly mode, the purpose of convenient disassembly and assembly is achieved, the packing can be disassembled and assembled conveniently, meanwhile, maintenance is convenient, and the distance and the height between the packing plates can be adjusted conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of isopropylhydroxylamine preparation, in particular to a rectifying tower device for preparing isopropylhydroxylamine. Background Technique

[0002] The molecular formula of N-isopropylhydroxylamine is (CH3)2CHNH(OH), and its English abbreviation is IPHA. It belongs to secondary alkyl hydroxylamine derivatives and is a medium-strength organic reducing agent. With excellent physical and chemical properties, it is widely used as a polymerization inhibitor and telomerization inhibitor for olefin monomers. In addition, N-isopropylhydroxylamine can also be used as a high-efficiency antioxidant, a stabilizer for photographic emulsions, a color regulator for color photography, and an intermediate for organic synthesis, etc. The market application prospect will be very broad.

[0003] The existing packed rectifying tower is inconvenient for packing, has high requirements and great difficulty for regular packing, and is also inconvenient for installation and maintenance. Content of the Utility Model

[0004] The utility model aims to provide a rectifying tower device for preparing isopropylhydroxylamine to overcome or at least partially solve the above problems.

[0005] To achieve the above object, the technical solution of the utility model is specifically realized as follows:

[0006] The utility model provides a rectifying tower device for preparing isopropylhydroxylamine, which includes an upper tower shell and a lower tower shell. The upper tower shell is arranged on the upper side of the lower tower shell, and a connecting pipe is arranged between the upper tower shell and the lower tower shell. The outer end of the connecting pipe is integrally connected with a connecting ring. The connecting ring is arranged between the upper tower shell and the lower tower shell and is fixed by bolts. A first packing plate is fixedly connected inside the connecting pipe. A second packing plate is arranged inside the lower tower shell, and a third packing plate is arranged inside the upper tower shell. The second packing plate and the third packing plate are respectively arranged on the lower side and the upper side of the connecting pipe, and the second packing plate can move up and down along the lower tower shell, and the third packing plate can move up and down along the upper tower shell.

[0007] As a further scheme of the utility model, annular grooves are opened on the lower side surface of the upper tower shell and the upper side surface of the lower tower shell, and sealing rubber rings are adhesively fixed on the annular grooves. The sealing rubber rings are respectively arranged between the upper tower shell and the connecting ring and between the lower tower shell and the connecting ring.

[0008] As a further scheme of the utility model, sliding grooves are opened on the inner side walls of the upper tower shell and the lower tower shell, and sliding blocks are slidably connected in the sliding grooves. The sliding blocks are respectively fixed on the left and right sides of the second packing plate and the third packing plate.

[0009] As a further solution of the present utility model, a plurality of sliders are further slidably connected inside the sliding groove, and the plurality of sliders are stacked on the upper and lower sides of the second packing plate and the upper and lower sides of the third packing plate.

[0010] The utility model provides a rectification tower device for preparing isopropylhydroxylamine, and the beneficial effects are as follows: By means of combined assembly, the purpose of convenient disassembly and assembly is achieved, which is convenient for disassembling and assembling the packing, and is also convenient for maintenance. Moreover, it is convenient to adjust the distance and height between the packing plates. The operation is simple and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 It is a structural schematic diagram of the present utility model.

[0013] Figure 2 For the present utility model Figure 1 A partial enlarged schematic diagram of part A in it.

[0014] In the figure: 1, upper tower shell; 2, connecting pipe; 3, lower tower shell; 4, first packing plate; 5, second packing plate; 6, third packing plate; 7, bolt; 8, sealing rubber ring; 9, slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0016] See Figure 1 and Figure 2, A rectifying column device for preparing isopropylhydroxylamine provided by an embodiment of the present utility model includes an upper tower shell 1 and a lower tower shell 3. The upper tower shell 1 is arranged on the upper side of the lower tower shell 3, and a connecting pipe 2 is arranged between the upper tower shell 1 and the lower tower shell 3. The outer end of the connecting pipe 2 is integrally connected with a connecting ring. The connecting ring is arranged between the upper tower shell 1 and the lower tower shell 3 and is fixed by bolts 7. A first packing plate 4 is fixedly connected inside the connecting pipe 2. A second packing plate 5 is arranged inside the lower tower shell 3, and a third packing plate 6 is arranged inside the upper tower shell 1. The second packing plate 5 and the third packing plate 6 are respectively arranged on the lower side and the upper side of the connecting pipe 2, and the second packing plate 5 can move up and down along the lower tower shell 3, and the third packing plate 6 can move up and down along the upper tower shell 1.

[0017] Annular grooves are formed on the lower side surface of the upper tower shell 1 and the upper side surface of the lower tower shell 3. A sealing rubber ring 8 is adhesively fixed on the annular grooves. The sealing rubber ring 8 is respectively arranged between the upper tower shell 1 and the connecting ring and between the lower tower shell 3 and the connecting ring, improving the sealing performance among the upper tower shell 1, the lower tower shell 3 and the connecting pipe 2.

[0018] Chute grooves are formed on the inner side walls of the upper tower shell 1 and the lower tower shell 3. A sliding block is slidably connected in the chute groove. The sliding blocks are respectively fixed on the left and right sides of the second packing plate 5 and the third packing plate 6. A plurality of sliders 9 are also slidably connected inside the chute groove, and the plurality of sliders 9 are stacked on the upper and lower sides of the second packing plate 5 and the upper and lower sides of the third packing plate 6, realizing convenient adjustment of the heights of the second packing plate 5 and the third packing plate 6, and also facilitating the disassembly and replacement of the second packing plate 5 and the third packing plate 6.

[0019] During the use of the present utility model, the mixed aqueous solution of isopropylhydroxylamine is injected through the liquid inlet end on the upper tower shell 1 and moves downward through the third packing plate 6, the first packing plate 4 and the second packing plate 5. At the same time, external heating steam enters through the air inlet pipe on the lower tower shell 3, and the hot steam moves upward through the second packing plate 5, the first packing plate 4 and the third packing plate 6, realizing sufficient contact between the mixed aqueous solution of isopropylhydroxylamine and the hot steam, realizing the conversion of isopropylhydroxylamine into a gaseous state by heating, then sending the gaseous isopropylhydroxylamine into a condenser, and finally liquefying the isopropylhydroxylamine to obtain isopropylhydroxylamine.

[0020] When the packing needs to be replaced, by disassembling the bolt 7 and then moving the upper tower shell 1 upward, the upper tower shell 1 can be moved upward and separated from the connecting pipe 2 and the lower tower shell 3. Then, the connecting pipe 2 can be removed from the lower tower shell 3. Finally, the first packing plate 4, the second packing plate 5, and the third packing plate 6 can be disassembled and replaced respectively. At the same time, it is also convenient to regularize the placed packing, ensuring the neatness. Moreover, by adjusting the number of the sliders 9, the heights of the third packing plate 6 and the second packing plate 5 can be adjusted. The operation is simple and the disassembly and assembly are convenient.

[0021] The above are only the embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A rectification column device for preparing isopropylhydroxylamine, characterized in that, It includes an upper tower shell (1) and a lower tower shell (3). The upper tower shell (1) is arranged on the upper side of the lower tower shell (3), and a connecting pipe (2) is arranged between the upper tower shell (1) and the lower tower shell (3). The outer end of the connecting pipe (2) is integrally connected with a connecting ring. The connecting ring is arranged between the upper tower shell (1) and the lower tower shell (3) and is fixed by bolts (7). A first packing plate (4) is fixedly connected inside the connecting pipe (2). A second packing plate (5) is arranged inside the lower tower shell (3), and a third packing plate (6) is arranged inside the upper tower shell (1). The second packing plate (5) and the third packing plate (6) are respectively arranged on the lower side and the upper side of the connecting pipe (2), and the second packing plate (5) can move up and down along the lower tower shell (3), and the third packing plate (6) can move up and down along the upper tower shell (1).

2. The rectification column device for preparing isopropylhydroxylamine according to claim 1, characterized in that, Annular grooves are formed on the lower side surface of the upper tower shell (1) and the upper side surface of the lower tower shell (3), and a sealing rubber ring (8) is adhesively fixed on the annular grooves. The sealing rubber ring (8) is respectively arranged between the upper tower shell (1) and the connecting ring and between the lower tower shell (3) and the connecting ring.

3. The rectification column device for preparing isopropylhydroxylamine according to claim 1, characterized in that, Chutes are formed on the inner side walls of the upper tower shell (1) and the lower tower shell (3), and sliding blocks are slidably connected in the chutes. The sliding blocks are respectively fixed on the left and right sides of the second packing plate (5) and the third packing plate (6).

4. The rectification column device for preparing isopropylhydroxylamine according to claim 3, characterized in that, A plurality of sliders (9) are also slidably connected inside the chutes, and the plurality of sliders (9) are stacked on the upper and lower sides of the second packing plate (5) and the upper and lower sides of the third packing plate (6).

Images