Device applied to rectification and dehydration of organic ester curing agent

Abstract

The utility model relates to a device for rectifying and dehydrating an organic ester curing agent, which comprises a rectifying tower, a tower body of the rectifying tower consists of a plurality of cylindrical tower sections, each tower section comprises a barrel, and an upper flange and a lower flange are respectively formed at two ends of each barrel. The upper flange of the tower section on the lower side layer is fixedly connected with the lower flange of the tower section on the adjacent upper layer through a bolt; a heat insulation sleeve with a U-shaped section is fixedly connected to the portion, between the upper flange and the lower flange, of the cylinder in an inserted and sleeved mode, an annular heat insulation cavity is defined by the heat insulation sleeve and the cylinder, a spiral flow guide partition plate is inserted into the heat insulation cavity, the outer ring of the flow guide partition plate abuts against the inner wall of the heat insulation sleeve, and the inner ring of the flow guide partition plate is fixedly connected to the outer wall of the cylinder; the heat insulation cavity is divided into a spiral flow channel by the flow guide partition plate. According to the device, the spiral runners are arranged on the outer sides of the tower sections, and the runners between the adjacent tower sections are communicated through the paired connecting pipes, so that the outer sides of the spliced rectifying tower can be spliced to form a heat preservation structure.

Description

Technical Field:

[0001] The utility model relates to the technical field of dehydration equipment for organic ester curing agents, and more specifically to a device applied to the rectification dehydration of organic ester curing agents. Background Art:

[0002] At present, organic ester curing agents need to be added to the raw materials for riser casting. The organic ester curing agent can promote the solidification of liquid casting liquid into a riser. During the synthesis process of the organic ester curing agent, dehydration treatment is required. The dehydration of the organic ester curing agent mainly adopts the rectification dehydration method, which is realized in a rectification tower. Rectification tower dehydration is a method of removing water by utilizing the separation effect in the rectification process. During rectification, the liquid mixture is heated to the boiling point to generate gas and liquid phases. Due to the different volatilities of water and organic substances, by controlling conditions such as the gas temperature and pressure in the tower, water can be distilled out from the organic substances to achieve the purpose of dehydration.

[0003] The rectification dehydration of organic ester curing agents requires a rectification tower with a relatively high tower body. The rectification tower with a relatively high tower body is generally formed by splicing sections of tower sections through bolt assemblies. However, the rectification tower with a tower section structure generally cannot be provided with an outer heat insulation layer, so a heat insulation structure that can be formed along with the tower sections is needed. Summary of the Utility Model:

[0004] The purpose of the utility model is to provide a device applied to the rectification dehydration of organic ester curing agents in view of the deficiencies of the prior art. The device is provided with spiral channels on the outer side of the tower sections, and the channels between adjacent tower sections are connected through paired connecting pipes, so that a heat insulation structure can be formed by splicing on the outside of the spliced rectification tower.

[0005] A device applied to the rectification dehydration of organic ester curing agents includes a rectification tower. The tower body of the rectification tower is composed of several cylindrical tower sections. Each tower section includes a cylinder body. Upper flanges and lower flanges are respectively formed at both ends of the cylinder body. The upper flange of the lower tower section and the lower flange of the adjacent upper tower section are fixedly connected together by bolts. An insulating sleeve with a "C" - shaped cross - section is inserted and fixedly connected on the cylinder body between the upper flange and the lower flange. An annular heat insulation and heat preservation cavity is formed by enclosing the insulating sleeve and the cylinder body. A spiral flow guiding and separating plate is inserted into the heat insulation and heat preservation cavity. The outer ring of the spiral flow guiding and separating plate abuts against the inner wall of the insulating sleeve, and the inner ring is fixedly connected to the outer wall of the cylinder body. The spiral flow guiding and separating plate divides the heat insulation and heat preservation cavity into spiral channels.

[0006] Upper connecting pipes and lower connecting pipes that are opposite up and down and communicate with the heat insulation and heat preservation cavity are respectively inserted and fixed at the upper and lower ends of the insulating sleeve. The upper ends of the upper connecting pipes are inserted and fixed on the upper flange, and the lower ends of the lower connecting pipes are inserted and fixed on the lower flange. The upper connecting pipes on the lower tower section are connected to the lower connecting pipes on the adjacent upper tower section.

[0007] Preferably, the upper and lower ends of the thermal insulation sleeve are close to the upper flange and the lower flange respectively;

[0008] The upper flange is formed with a plurality of upper threaded holes, the lower flange directly below the upper threaded holes is formed with a lower socket, the lower flange between the lower sockets is formed with a plurality of lower threaded holes, and the upper socket is formed on the upper flange directly above the lower threaded holes;

[0009] The bolts are hexagonal bolts, which are evenly distributed in a ring around the central axis of the tower section. Adjacent bolts are arranged in a positive and inverted staggered manner. The bolts are respectively inserted into the lower socket and the upper socket, and the ends of the bolts are respectively screwed into the upper threaded hole and the lower threaded hole.

[0010] Preferably, the ends of the bolts extend out of the upper threaded hole and the lower threaded hole respectively and are screwed with locking nuts, and the locking nuts are pressed against the upper flange and the lower flange respectively.

[0011] Preferably, the distance from the upper end surface of the insulation sleeve to the upper end surface of the upper flange on the same tower section is equal to the distance from the lower end surface of the insulation sleeve to the lower end surface of the lower flange, and the distance from the upper end surface of the insulation sleeve to the upper end surface of the upper flange is greater than the length of the bolt.

[0012] Preferably, the number of the upper connecting pipes is equal to the number of the lower connecting pipes, at least four upper connecting pipes are provided, and the upper connecting pipes and the lower connecting pipes are evenly distributed in a ring shape around the central axis of the cylinder.

[0013] Preferably, the lower end face of the lower flange is formed with a countersunk hole opposite to the upper connecting pipe, the lower end face of the lower connecting pipe is flush with the bottom face of the countersunk hole, the aperture of the countersunk hole is larger than the outer tube diameter of the lower connecting pipe, and the lower end face of the upper connecting pipe is flush with the upper end face of the upper flange.

[0014] Preferably, an annular sealing groove is formed on the lower end surface of the lower flange inside the countersunk hole; and a perforated plate is inserted and fixed in the cylinder inside the sealing groove.

[0015] The beneficial effects of the utility model are:

[0016] The device is provided with a spiral flow channel on the outer side of the tower section, and the flow channels between adjacent tower sections are connected through paired connecting pipes, so that the outer sides of the spliced ​​distillation towers can be spliced ​​to form a heat-insulating structure. Description of the drawings:

[0017] Figure 1 It is a structural schematic diagram of the utility model in a front view;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the inner tower section of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the inner tower section of the utility model.

[0020] In the figure: 10, tower section; 1, cylinder body; 11, upper flange; 111, upper threaded hole; 112, upper socket; 12, lower flange; 121, lower threaded hole; 122, lower socket; 2, heat insulation sleeve; 3, flow guiding and separating plate; 4, upper connecting pipe; 5, lower connecting pipe; 6, orifice plate; 7, bolt; 8, lock nut. Specific implementation mode:

[0021] Example: See Figures 1 to 3 As shown, a device applied to the rectification and dehydration of organic ester curing agent includes a rectification tower. The tower body of the rectification tower is composed of several cylindrical tower sections 10. The tower section 10 includes a cylinder body 1. Upper flanges 11 and lower flanges 12 are respectively formed at both ends of the cylinder body 1. The upper flange 11 of the tower section 10 on the lower layer and the lower flange 12 of the adjacent upper tower section 10 are fixedly connected together by bolts 7; A heat insulation sleeve 2 with a "C" - shaped cross - section is fixedly sleeved and inserted on the cylinder body 1 between the upper flange 11 and the lower flange 12. A circular heat insulation and heat preservation cavity a is formed by surrounding the heat insulation sleeve 2 and the cylinder body 1. A spiral flow guiding and separating plate 3 is inserted in the heat insulation and heat preservation cavity a. The outer ring of the flow guiding and separating plate 3 abuts against the inner wall of the heat insulation sleeve 2, and the inner ring is fixedly connected to the outer wall of the cylinder body 1; The flow guiding and separating plate 3 divides the heat insulation and heat preservation cavity a into a spiral flow channel;

[0022] During the assembly process of the heat insulation sleeve 2 and the flow guiding and separating plate 3, the heat insulation sleeve 2 can be composed of two semi - ring sleeves. During assembly, first wind the flow guiding and separating plate 3 around and fix it on the cylinder body 1 by brazing or argon arc welding, and then sleeved the heat insulation sleeve 2 composed of two semi - ring sleeves on the outside of the flow guiding and separating plate 3, and realize the welding seal between the heat insulation sleeve 2 body and the cylinder body 1 by brazing or argon arc welding;

[0023] Upper connecting pipes 4 and lower connecting pipes 5 which are opposite up and down and communicate with the heat insulation and heat preservation cavity a are respectively inserted and fixed at the upper and lower ends of the heat insulation sleeve 2. The upper end of the upper connecting pipe 4 is inserted and fixed on the upper flange 11, and the lower end of the lower connecting pipe 5 is inserted and fixed on the lower flange 12; The upper connecting pipe 4 on the tower section 10 of the lower layer is communicated with the lower connecting pipe 5 on the adjacent upper tower section 10.

[0024] The upper and lower ends of the heat insulation sleeve 2 are respectively close to the upper flange 11 and the lower flange 12; The range of the heat insulation and heat preservation cavity a is increased as much as possible;

[0025] The upper flange 11 is formed with a plurality of upper threaded holes 111, the lower flange 12 directly below the upper threaded holes 111 is formed with a lower socket 122, the lower flange 12 between the lower sockets 122 is formed with a plurality of lower threaded holes 121, and the upper flange 11 directly above the lower threaded holes 121 is formed with an upper socket 112; because the distance between the heat insulation sleeve 2 and the upper flange 11 and the lower flange 12 is small, in order to facilitate the installation of the bolt 7, a through-hole structure of the mounting bolt 7 is changed into a socket structure;

[0026] The bolts 7 are hexagonal bolts, and are evenly distributed in a ring shape around the central axis of the tower section 10. Adjacent bolts 7 are arranged in a positive and inverted staggered manner. The bolts 7 are respectively inserted into the lower socket 122 and the upper socket 112, and the ends of the bolts 7 are respectively screwed into the upper threaded hole 111 and the lower threaded hole 121.

[0027] The ends of the bolts 7 extend out of the upper threaded hole 111 and the lower threaded hole 121 and are screwed with locking nuts 8, which are pressed against the upper flange 11 and the lower flange 12 respectively. The locking nuts 8 are nuts used in conjunction with each other to prevent the bolts 7 from loosening.

[0028] The distance from the upper end surface of the insulation sleeve 2 on the same tower section 10 to the upper end surface of the upper flange 11 is equal to the distance from the lower end surface of the insulation sleeve 2 to the lower end surface of the lower flange 12, and the distance from the upper end surface of the insulation sleeve 2 to the upper end surface of the upper flange 11 is greater than the length of the bolt 7.

[0029] The number of the upper pipes 4 is equal to the number of the lower pipes 5 , at least four upper pipes 4 are provided, and the upper pipes 4 and the lower pipes 5 are evenly distributed in a ring shape around the central axis of the cylinder 1 .

[0030] The lower end surface of the lower flange 12 is formed with a countersunk hole 14 opposite to the upper connecting pipe 4. The lower end surface of the lower connecting pipe 5 is flush with the bottom surface of the countersunk hole 14. The aperture of the countersunk hole 14 is larger than the outer tube diameter of the lower connecting pipe 5. The lower end surface of the upper connecting pipe 4 is flush with the upper end surface of the upper flange 11. An annular sealing gasket is inserted in the countersunk hole 14.

[0031] An annular sealing groove 13 is formed on the lower end surface of the lower flange 12 inside the countersunk hole 14; a sealing ring is inserted into the sealing groove 13; and a perforated plate 6 is inserted and fixed into the cylinder 1 inside the sealing groove 13.

[0032] Working principle: The utility model is applied to the device of distillation and dehydration of organic ester curing agent, and the device structure is simple, and the main technical point is located on the insulation structure outside the tower section 10, and the insulation structure is the insulation chamber a surrounded by the insulation sleeve 2 and the cylinder 1, and the spiral guide partition plate 3 divides the insulation chamber a into spiral flow channels, and the flow channels between adjacent tower sections 10 can be connected through multiple sets of paired upper pipes 4 and lower pipes 5.

[0033] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A device for rectifying and dehydrating an organic ester curing agent, comprising a rectifying tower, wherein the tower body of the rectifying tower is composed of a plurality of cylindrical tower sections (10), wherein the tower section (10) comprises a cylinder (1), wherein both ends of the cylinder (1) are respectively formed with an upper flange (11) and a lower flange (12), wherein the upper flange (11) of the tower section (10) of the lower layer and the lower flange (12) of the tower section (10) of the adjacent upper layer are fixedly connected together by bolts (7); characterized in that: An insulating sleeve (2) with a "C"-shaped cross-section is inserted and fixedly connected to the cylinder body (1) between the upper flange (11) and the lower flange (12). An annular heat-insulating and heat-preserving cavity (a) is formed by surrounding the insulating sleeve (2) and the cylinder body (1). A spiral flow guiding and separating plate (3) is inserted into the heat-insulating and heat-preserving cavity (a). The outer ring of the flow guiding and separating plate (3) abuts against the inner wall of the insulating sleeve (2), and the inner ring is fixedly connected to the outer wall of the cylinder body (1); the flow guiding and separating plate (3) divides the heat-insulating and heat-preserving cavity (a) into a spiral flow channel; A plurality of upper接管 (4) and lower接管 (5) which are opposite up and down and communicate with the heat-insulating and heat-preserving cavity (a) are respectively inserted and fixed at the upper and lower ends of the insulating sleeve (2). The upper end of the upper接管 (4) is inserted and fixed on the upper flange (11), and the lower end of the lower接管 (5) is inserted and fixed on the lower flange (12); the upper接管 (4) on the lower tower section (10) communicates with the lower接管 (5) on the adjacent upper tower section (10).

2. The device for distillation and dehydration of organic ester curing agents according to claim 1, characterized in that: The upper and lower ends of the insulating sleeve (2) are respectively close to the upper flange (11) and the lower flange (12); A plurality of upper threaded holes (111) are formed on the upper flange (11). Lower sockets (122) are formed on the lower flange (12) directly below the upper threaded holes (111). A plurality of lower threaded holes (121) are formed on the lower flange (12) between the lower sockets (122). Upper sockets (112) are formed on the upper flange (11) directly above the lower threaded holes (121); The bolts (7) are external hexagonal bolts. The bolts (7) are evenly distributed in a ring around the central axis of the tower section (10). Adjacent bolts (7) are arranged in a positive and inverted staggered manner. The bolts (7) are respectively inserted into the lower sockets (122) and the upper sockets (112), and the ends of the bolts (7) are respectively screwed into the upper threaded holes (111) and the lower threaded holes (121).

3. The device for distillation and dehydration of organic ester curing agent according to claim 2, characterized in that: Locking nuts (8) are respectively screwed on the ends of the bolts (7) protruding from the upper threaded holes (111) and the lower threaded holes (121), and the locking nuts (8) are respectively pressed against the upper flange (11) and the lower flange (12).

4. The device for distillation and dehydration of organic ester curing agent according to claim 2, characterized in that: The distance from the upper end face of the insulating sleeve (2) to the upper end face of the upper flange (11) on the same tower section (10) is equal to the distance from the lower end face of the insulating sleeve (2) to the lower end face of the lower flange (12), and the distance from the upper end face of the insulating sleeve (2) to the upper end face of the upper flange (11) is greater than the length of the bolt (7).

5. The device for distillation and dehydration of organic ester curing agent according to claim 1, characterized in that: The number of the upper接管 (4) is equal to the number of the lower接管 (5). There are at least four upper接管 (4). The upper接管 (4) and the lower接管 (5) are evenly distributed in a ring around the central axis of the cylinder body (1).

6. The device for distillation and dehydration of organic ester curing agent according to claim 5, characterized in that: A counterbore (14) opposite to the upper接管 (4) is formed on the lower end face of the lower flange (12). The lower end face of the lower接管 (5) is flush with the bottom surface of the counterbore (14). The diameter of the counterbore (14) is greater than the outer diameter of the lower接管 (5). The lower end face of the upper接管 (4) is flush with the upper end face of the upper flange (11).

7. The device for distillation and dehydration of organic ester curing agent according to claim 6, characterized in that: An annular sealing groove (13) is formed on the lower end surface of the lower flange (12) inside the countersunk hole (14); a perforated plate (6) is inserted and fixed in the cylinder (1) inside the sealing groove (13).

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