Isopropylhydroxylamine rectification mechanism

Abstract

The utility model relates to the field of isopropyl hydroxylamine rectification, and discloses an isopropyl hydroxylamine rectification mechanism which comprises a rectification tower, the upper end and the lower end of the surface of the rectification tower are respectively provided with a material inlet and outlet hole, and a material inlet and outlet pipe is fixedly inserted into the material inlet and outlet hole. A connecting pipe is detachably arranged at the end, away from the feeding and discharging hole, of the feeding and discharging pipe, a rotating groove is formed in the surface of the feeding and discharging pipe, a threaded sleeve is rotationally arranged in the rotating groove, a filtering plate is detachably arranged in the connecting pipe, and the inner wall face of the threaded sleeve is in threaded connection with the surface of the connecting pipe. According to the utility model, the threaded sleeve rotates in the rotating groove, so that the connecting pipe can be slowly screwed out of the threaded sleeve, the feeding and discharging pipe can be separated from the connecting pipe, the blocked filter plate in the connecting pipe can be taken out and replaced with a complete filter plate, and the blocked filter plate can be replaced in time; the interference on the rectification of the isopropyl hydroxylamine is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of isopropylhydroxylamine rectification, and particularly relates to an isopropylhydroxylamine rectification mechanism. Background Technique

[0002] Isopropylhydroxylamine is a medium-strength organic reducing agent and belongs to secondary alkylhydroxylamine derivatives. Due to its excellent physical and chemical properties, it is widely used as a polymerization inhibitor and telomerization inhibitor for olefin monomers in industry. In addition, it is also applied to high-efficiency antioxidants, stabilizers for photographic emulsions, color regulators for color photography, and as intermediates in organic synthesis, etc.

[0003] According to the Chinese patent with the publication number: CN210698862U, a high-yield isopropylhydroxylamine rectification system includes a rectification system. The rectification system is under vacuum conditions, and the vacuum system controls the vacuum degree at -0.07 Mpa to -0.090 Mpa. Specifically, it includes: a reaction kettle, which is in the same direction as the process flow. The reaction kettle is sequentially connected to a rectification tower, a condenser, a collection tank I, a collection tank II, and a vacuum system through pipelines. Among them, a reflux liquid inlet is provided in the upper middle part of the side of the rectification tower, a reflux liquid outlet is provided at the bottom of the collection tank I, and the reflux liquid outlet is connected to the reflux liquid inlet through a reflux liquid pump.

[0004] In the above solution, by reducing the vacuum degree of the entire rectification system, the blockage situation is alleviated, but it still has the following disadvantages: as the use time prolongs, the blockage situation may become more and more serious. If it is not replaced in time, it may interfere with the rectification of isopropylhydroxylamine. Content of the Utility Model

[0005] The purpose of the utility model is to provide an isopropylhydroxylamine rectification mechanism to solve the problem that as the use time prolongs, the blockage situation may become more and more serious. If it is not replaced in time, it may interfere with the rectification of isopropylhydroxylamine.

[0006] To achieve the above-mentioned utility model purpose, the utility model adopts the following technical scheme: an isopropylhydroxylamine rectification mechanism includes a rectification tower. Feeding and discharging holes are respectively opened at the upper and lower ends of the surface of the rectification tower. Feeding and discharging pipes are fixedly inserted into the feeding and discharging holes. One end of the feeding and discharging pipe far away from the feeding and discharging hole is detachably provided with a connecting pipe. A rotating groove is opened on the surface of the feeding and discharging pipe. A threaded sleeve is rotatably arranged in the rotating groove. A filter plate is detachably arranged inside the connecting pipe. The inner wall surface of the threaded sleeve is threadedly connected with the surface of the connecting pipe.

[0007] Preferably, fixing holes are respectively opened at the upper and lower ends of the surface of the rectification tower, and a transmission pipe is fixed inside the fixing holes.

[0008] Preferably, a sealing ring is fixed to one end of the inlet and outlet pipe away from the inlet and outlet hole. A sealing groove is formed at one end of the connecting pipe close to the inlet and outlet pipe, and the sealing ring and the sealing groove are slidably arranged.

[0009] Preferably, a fixing ring is fixed inside the connecting pipe. A sliding strip is fixed to the top surface of the fixing ring. A sliding groove is formed on the surface of the filter plate, and the sliding strip and the sliding groove are slidably arranged.

[0010] Preferably, a positioning column is arranged inside the inlet and outlet pipe. A connecting rod is fixed to the surface of the positioning column, and the other end of the connecting rod is fixed to the inner wall surface of the inlet and outlet pipe. A pressing plate is fixed to the bottom end of the positioning column.

[0011] Preferably, a plurality of support columns are fixed to the bottom surface of the distillation column, and an anti-slip pad is fixed to the bottom end of the support column.

[0012] Compared with the prior art, an isopropylhydroxylamine distillation mechanism adopting the above technical scheme has the following beneficial effects:

[0013] First, when crystallization occurs during the distillation of isopropylhydroxylamine, the filter plate may be blocked by crystallization. At this time, after the current isopropylhydroxylamine distillation is completed, the staff will first rotate the threaded sleeve, so that the threaded sleeve rotates inside the rotating groove, and then the connecting pipe can be slowly screwed out of the threaded sleeve, and the inlet and outlet pipe and the connecting pipe can be separated. Furthermore, the blocked filter plate in the connecting pipe can be taken out and replaced with a intact filter plate. By timely replacing the blocked filter plate, the distillation of isopropylhydroxylamine can be prevented from being interfered.

[0014] Second, when the filter plate is installed inside the connecting pipe, the sliding groove will correspond to the position of the sliding strip. When the filter plate is pushed into the connecting pipe, the sliding groove will slide on the surface of the sliding strip. By using the sliding arrangement of the sliding groove and the sliding strip and the upward support of the fixing ring, the stability of the position of the filter plate inside the connecting pipe is increased.

[0015] Third, when the inlet and outlet pipe and the connecting pipe are fixed together, the positioning column will penetrate into the connecting pipe and drive the pressing plate to press on the top surface of the filter plate, further increasing the firmness of the position of the filter plate inside the connecting pipe and preventing the filter plate from being displaced by the flowing generated products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the embodiment.

[0017] Figure 2 It is an exploded three-dimensional schematic diagram of the embodiment.

[0018] Figure 3 For Figure 2Schematic enlarged view of the local structure at location A in the [device].

[0019] Figure 4 Schematic diagram of the explosion at the connection pipe and the fixing ring in the embodiment.

[0020] In the figure: 1, rectifying column; 2, inlet and outlet hole; 3, inlet and outlet pipe; 4, connection pipe; 5, rotating groove; 6, threaded sleeve; 7, filter plate; 8, fixing hole; 9, transfer pipe; 10, sealing ring; 11, sealing groove; 12, fixing ring; 13, sliding bar; 14, sliding groove; 15, positioning column; 16, connecting rod; 17, pressing plate; 18, support column; 19, anti-slip pad. Detailed implementation manner

[0021] The following will, with reference to the accompanying drawings, elaborate on the preferred embodiments of the present utility model.

[0022] As Figures 1 - 3 shown, an isopropylhydroxylamine rectifying mechanism includes a rectifying column 1, characterized in that inlet and outlet holes 2 are respectively opened at the upper and lower ends of the surface of the rectifying column 1, an inlet and outlet pipe 3 is fixedly inserted inside the inlet and outlet holes 2, one end of the inlet and outlet pipe 3 far from the inlet and outlet holes 2 is detachably provided with a connection pipe 4, a rotating groove 5 is opened on the surface of the inlet and outlet pipe 3, a threaded sleeve 6 is rotatably arranged inside the rotating groove 5, a filter plate 7 is detachably arranged inside the connection pipe 4, the inner wall surface of the threaded sleeve 6 is threadedly connected to the surface of the connection pipe 4, fixing holes 8 are respectively opened at the upper and lower ends of the surface of the rectifying column 1, and a transfer pipe 9 is fixed inside the fixing holes 8.

[0023] During use, when crystallization occurs during the rectification of isopropylhydroxylamine, it may happen that the filter plate 7 is blocked by crystals. At this time, after the current rectification of isopropylhydroxylamine is completed, the staff will first rotate the threaded sleeve 6, so that the threaded sleeve 6 rotates inside the rotating groove 5, and then the connection pipe 4 can be slowly screwed out of the threaded sleeve 6, and the inlet and outlet pipe 3 and the connection pipe 4 can be separated. Furthermore, the blocked filter plate 7 in the connection pipe 4 can be taken out and replaced with a intact filter plate 7. By timely replacing the blocked filter plate 7, it is prevented from interfering with the rectification of isopropylhydroxylamine.

[0024] As Figure 3 and Figure 4 shown, a sealing ring 10 is fixed at one end of the inlet and outlet pipe 3 far from the inlet and outlet holes 2, a sealing groove 11 is opened at one end of the connection pipe 4 close to the inlet and outlet pipe 3, the sealing ring 10 and the sealing groove 11 are slidably arranged, a fixing ring 12 is fixed inside the connection pipe 4, a sliding bar 13 is fixed on the top surface of the fixing ring 12, a sliding groove 14 is opened on the surface of the filter plate 7, and the sliding bar 13 and the sliding groove 14 are slidably arranged.

[0025] In use, when the filter plate 7 is installed inside the connecting pipe 4, the sliding groove 14 will correspond to the position of the sliding bar 13. When the filter plate 7 is pushed into the connecting pipe 4, the sliding groove 14 will slide on the surface of the sliding bar 13. With the sliding arrangement of the sliding groove 14 and the sliding bar 13 and the upward support of the fixing ring 12, the stability of the position of the filter plate 7 inside the connecting pipe 4 is increased.

[0026] As Figure 1 and Figure 3 shown, a positioning column 15 is arranged inside the feed and discharge pipe 3. A connecting rod 16 is fixed on the surface of the positioning column 15. The other end of the connecting rod 16 is fixed to the inner wall surface of the feed and discharge pipe 3. A pressing plate 17 is fixed to the bottom end of the positioning column 15. A plurality of support columns 18 are fixed to the bottom surface of the rectifying column 1. An anti-slip pad 19 is fixed to the bottom end of the support column 18.

[0027] In use, when the feed and discharge pipe 3 and the connecting pipe 4 are fixed together, the positioning column 15 will extend into the inside of the connecting pipe 4 and drive the pressing plate 17 to press on the top surface of the filter plate 7, which can further increase the firmness of the position of the filter plate 7 inside the connecting pipe 4 and prevent the filter plate 7 from being displaced by the flowing product.

[0028] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A rectification mechanism for isopropylhydroxylamine, comprising a rectification column (1), characterized in that, The upper and lower ends of the surface of the rectification column (1) are respectively provided with feed and discharge holes (2). An inlet and outlet pipe (3) is fixedly inserted into the interior of the feed and discharge holes (2). One end of the inlet and outlet pipe (3) away from the feed and discharge holes (2) is detachably provided with a connecting pipe (4). A rotating groove (5) is formed on the surface of the inlet and outlet pipe (3). A threaded sleeve (6) is rotatably arranged in the interior of the rotating groove (5). A filter plate (7) is detachably arranged in the interior of the connecting pipe (4). The inner wall surface of the threaded sleeve (6) is threadedly connected with the surface of the connecting pipe (4).

2. The rectification mechanism of isopropylhydroxylamine according to claim 1, characterized in that: Fixing holes (8) are respectively formed in the upper and lower ends of the surface of the rectification column (1). A transmission pipe (9) is fixed in the interior of the fixing holes (8).

3. The rectification mechanism of isopropylhydroxylamine according to claim 1, characterized in that: A sealing ring (10) is fixed to one end of the inlet and outlet pipe (3) away from the feed and discharge holes (2). A sealing groove (11) is formed in one end of the connecting pipe (4) close to the inlet and outlet pipe (3). The sealing ring (10) and the sealing groove (11) are slidably arranged.

4. A rectification mechanism for isopropylhydroxylamine according to claim 1, characterized in that: A fixing ring (12) is fixed in the interior of the connecting pipe (4). A sliding bar (13) is fixed to the top surface of the fixing ring (12). A sliding groove (14) is formed on the surface of the filter plate (7). The sliding bar (13) and the sliding groove (14) are slidably arranged.

5. The rectification mechanism of isopropylhydroxylamine according to claim 1, characterized in that: A positioning column (15) is arranged in the interior of the inlet and outlet pipe (3). A connecting rod (16) is fixed to the surface of the positioning column (15). The other end of the connecting rod (16) is fixed to the inner wall surface of the inlet and outlet pipe (3). A pressing plate (17) is fixed to the bottom end of the positioning column (15).

6. The rectification mechanism of isopropylhydroxylamine according to claim 1, characterized in that: A plurality of support columns (18) are fixed to the bottom surface of the rectification column (1). An anti-slip pad (19) is fixed to the bottom end of the support columns (18).

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