Butylene glycol purification device

Abstract

The utility model discloses a butanediol purification device, which belongs to the field of chemical purification equipment and comprises a heating box for butanediol to enter for evaporation, a motor is mounted on the inner top wall of the heating box, an output shaft of the motor is connected with a rotating shaft through a coupler, a hollow column is welded at one end of the rotating shaft far away from the motor, and the hollow column is connected with a screw. A spring is arranged in the hollow column, one end of the spring is connected with a moving column, four stirring blades are symmetrically welded to the periphery of the rotating shaft, the ends, away from the rotating shaft, of the four stirring blades are slidably connected with conical scraping pieces, and a connecting disc is installed at the end, away from the spring, of the moving column; the periphery of the connecting disc is symmetrically connected with three transverse scraping plates, the ends, away from the connecting disc, of the three transverse scraping plates are slidably connected with a vertical scraping plate, the heat transfer efficiency is improved, equipment corrosion is prevented, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of chemical purification equipment, and in particular to a butanediol purification device. Background Technology

[0002] Butanediol, as an important organic chemical raw material, has wide applications in many industries. During its production, it often contains impurities, requiring purification to meet the high-quality requirements of different applications. After long-term use, scale may form inside the distillation equipment due to impurity precipitation and chemical reactions. Existing butanediol purification devices can meet basic purification needs, but their descaling efficiency is low, reducing heat transfer efficiency, causing corrosion, and shortening equipment lifespan.

[0003] A search revealed Chinese patent document (authorization announcement number CN221637357U), which relates to the field of chemical production and discloses a butanediol purification device. This device includes a fan, a hot air cylinder, a distillation tank, and a condenser arranged sequentially from left to right. A connecting pipe is fixedly connected between the output end of the fan and the input end of the hot air cylinder. A connecting pipe is fixedly connected between the output end of the hot air cylinder and the top of the distillation tank. A connecting pipe is fixedly connected between the top of the distillation tank and the top of the condenser. A heating plate is fixedly connected to the bottom of the distillation tank, a pressure gauge is fixedly installed on the top of the distillation tank, and a collection box is placed at the bottom of the condenser. This butanediol purification device can meet basic purification requirements, but it has low descaling efficiency, reduces heat transfer efficiency, causes corrosion to the equipment, and shortens its service life. Utility Model Content

[0004] The purpose of this invention is to provide a butanediol purification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a butanediol purification device, comprising a heating chamber for butanediol to enter the evaporation process, a motor installed on the inner top wall of the heating chamber, the output shaft of the motor connected to a rotating shaft via a coupling, a hollow column welded to the end of the rotating shaft away from the motor, a spring installed inside the hollow column, a movable column connected to one end of the spring, four stirring blades symmetrically welded to the outer periphery of the rotating shaft, a conical scraper slidably connected to the end of each of the four stirring blades away from the rotating shaft, a connecting plate installed at the end of the movable column away from the spring, three transverse scrapers symmetrically connected to the outer periphery of the connecting plate, and a vertical scraper slidably connected to the end of each of the three transverse scrapers away from the connecting plate.

[0006] Preferably, the top of the heating box is connected to a separation pipe and a feed pipe, and a purification box is installed on the top of the heating box. Multiple heat-conducting frames are evenly connected to the vertical inner wall of the purification box, and heating pipes are installed inside the multiple heat-conducting frames.

[0007] Preferably, a liquid storage tube is installed on the top of one of the heat-conducting racks, and a conical guide plate is connected inside the liquid storage tube.

[0008] Preferably, a steam guide pipe is connected to the top of the purification box, a condenser pipe is connected to the end of the steam guide pipe away from the purification box, and a recovery pipe is connected to the end of the condenser pipe away from the steam guide pipe.

[0009] Preferably, the purification box is connected to a condensation box and a collection box on its outer periphery, and the condensation box is connected to a water inlet pipe and a water outlet pipe on its side.

[0010] Preferably, a feeding pipe is installed on the outer periphery of the purification box, and an upper pressure plate and a lower pressure plate are slidably installed inside the feeding pipe.

[0011] Preferably, a connecting rod is connected to the top of the upper pressure plate, and a pressing block is installed at the end of the connecting rod away from the upper pressure plate. A feed inlet is connected to the side of the feeding pipe, and the feed inlet is connected to the feeding pipe.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0013] This butanediol purification device benefits from the structure of horizontal and vertical scrapers. The motor drives the rotating shaft to rotate, which in turn drives the stirring blades and conical scrapers to rotate. The stirring blades agitate the butanediol raw material, and the spring compresses the moving column. The moving column drives the horizontal scraper to contact the inner bottom wall of the heating chamber, cleaning the inner bottom wall of the heating chamber. It can adapt to the pressure between the horizontal scraper and the inner bottom wall of the heating chamber. The vertical scraper can clean the vertical inner wall of the heating chamber. Compared with the low descaling efficiency of traditional purification devices, this structure improves heat transfer efficiency, prevents equipment corrosion, and increases the service life of the equipment.

[0014] This butanediol purification device benefits from the structure of the heat-conducting frame. The heating tube inside the heat-conducting frame continuously heats the vapor inside the separation tube, preventing the butanediol vapor inside the separation tube from liquefying due to temperature changes during its ascent, thus preventing it from failing to reach the purification temperature. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This utility model Figure 2 Enlarged view of point B in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] In the diagram: 1. Purification box; 101. Separation tube; 102. Heat conduction frame; 103. Heating tube; 104. Liquid storage tube; 105. Conical guide plate; 106. Steam guide tube; 2. Feeding tube; 201. Pressing block; 202. Connecting rod; 203. Upper pressure plate; 204. Lower pressure plate; 205. Feed inlet; 206. Feeding pipe; 3. Heating box; 301. Motor; 302. Rotating shaft; 303. Stirring blade; 304. Conical scraper; 305. Hollow column; 306. Spring; 307. Moving column; 308. Connecting plate; 309. Horizontal scraper; 310. Vertical scraper; 4. Condensation box; 401. Water inlet pipe; 402. Water outlet pipe; 403. Condensation tube; 404. Recovery pipe; 5. Collection box. Detailed Implementation

[0023] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0024] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0025] like Figures 1 to 5The illustrated butanediol purification apparatus includes a heating chamber 3 for butanediol to enter the evaporator. A motor 301 is mounted on the inner top wall of the heating chamber 3. The output shaft of the motor 301 is connected to a rotating shaft 302 via a coupling. A hollow column 305 is welded to the end of the rotating shaft 302 away from the motor 301. A spring 306 is installed inside the hollow column 305. One end of the spring 306 is connected to a moving column 307. A slide rail is provided on the inner wall of the hollow column 305. A slider is mounted on the outer periphery of the moving column 307. Four stirring blades 303 are symmetrically welded to the outer periphery of the rotating shaft 302. A conical scraper 304 is slidably connected to the end of each of the four stirring blades 303 away from the rotating shaft 302. When the motor 301 is turned on... The rotating shaft 302 is driven to rotate, which in turn drives the stirring blade 303 and the conical scraper 304 to rotate. The stirring blade 303 stirs the butanediol raw material. A connecting plate 308 is installed at the end of the moving column 307 away from the spring 306. Three horizontal scrapers 309 are symmetrically connected to the outer periphery of the connecting plate 308. A vertical scraper 310 is slidably connected at the end of the three horizontal scrapers 309 away from the connecting plate 308. The spring 306 presses the moving column 307, which drives the horizontal scrapers 309 to contact the inner bottom wall of the heating box 3, cleaning the inner bottom wall of the heating box 3. The pressure between the horizontal scrapers 309 and the inner bottom wall of the heating box 3 can be adapted. The vertical scraper 310 can clean the vertical inner wall of the heating box 3.

[0026] The top of the heating box 3 is connected to a separation pipe 101 and a feed pipe 206. A purification box 1 is installed on the top of the heating box 3. Multiple heat conduction racks 102 are evenly connected to the vertical inner wall of the purification box 1. Each heat conduction rack 102 is equipped with a heating pipe 103. A liquid storage pipe 104 is installed on the top of one of the heat conduction racks 102. A conical guide plate 105 is connected inside the liquid storage pipe 104. The liquid storage pipe 104 and the conical guide plate 105 work together to collect the impurities separated from one end of the separation pipe 101, preventing the impurities from accumulating at the port of the separation pipe 101. The heating pipe 103 inside the heat conduction rack 102 continuously heats the steam inside the separation pipe 101, preventing the butanediol vapor inside the separation pipe 101 from liquefying due to temperature changes during the rise, thus preventing it from failing to reach the purification temperature.

[0027] The top of the purification chamber 1 is connected to a steam guide pipe 106. The end of the steam guide pipe 106 away from the purification chamber 1 is connected to a condenser pipe 403. The end of the condenser pipe 403 away from the steam guide pipe 106 is connected to a recovery pipe 404. The outer periphery of the purification chamber 1 is connected to a condenser 4 and a collection box 5. The side of the condenser 4 is connected to a water inlet pipe 401 and a water outlet pipe 402. The bottom heating element of the heating chamber 3 heats and purifies the butanediol raw material. The butanediol vapor enters the condenser pipe 403 through the separation pipe 101 and the steam guide pipe 106. It undergoes heat exchange with the cooling water inside the condenser 4. The butanediol vapor in the water inlet pipe 401 is liquefied and finally enters the collection box 5 through the recovery pipe 404 for collection. The bottom heating element of the heating chamber 3 is a heating plate. The heating plate heats the butanediol in the heating chamber 3, causing it to vaporize and thus achieving the purpose of purification.

[0028] A feeding pipe 2 is installed on the outer periphery of the purification box 1. An upper pressure plate 203 and a lower pressure plate 204 are slidably installed inside the feeding pipe 2. A connecting rod 202 is connected to the top of the upper pressure plate 203. A pressing block 201 is installed at the end of the connecting rod 202 away from the upper pressure plate 203. A feed inlet 205 is connected to the side of the feeding pipe 2. The feed inlet 205 is connected to the feed pipe 206. Butanediol raw material is added into the feeding pipe 2. The pressing block 201 is pressed. The pressing block 201 drives the connecting rod 202 and the upper pressure plate 203 to squeeze the butanediol raw material through the feed pipe 206 into the heating box 3.

[0029] Working principle

[0030] In operation, the butanediol purification device involves adding butanediol raw material into the feeding pipe 2, pressing the pressing block 201, which drives the connecting rod 202 and the upper pressure plate 203 to compress the butanediol raw material through the feed pipe 206 into the heating chamber 3. The motor 301 is then turned on, driving the rotating shaft 302 to rotate. The rotating shaft 302, in turn, drives the stirring blade 303 and the conical scraper 304 to rotate. The stirring blade 303 agitates the butanediol raw material, and the heating element at the bottom of the heating chamber 3 heats and purifies the butanediol raw material. Butanediol vapor enters the condenser pipe 403 through the separation pipe 101 and the steam guide pipe 106, and is then cooled by the cooling water inside the condenser pipe 4. Heat exchange occurs, and the butanediol vapor in the inlet pipe 401 is liquefied. Finally, it enters the collection box 5 through the recovery pipe 404 for collection. The heating pipe 103 inside the heat conduction frame 102 continuously heats the vapor inside the separation pipe 101 to prevent the butanediol vapor inside the separation pipe 101 from liquefying due to temperature changes during the ascent, thus preventing it from failing to reach the purification temperature. The spring 306 squeezes the moving column 307, and the moving column 307 drives the horizontal scraper 309 to contact the inner bottom wall of the heating box 3 to clean the inner bottom wall of the heating box 3. The pressure between the horizontal scraper 309 and the inner bottom wall of the heating box 3 can adapt to the pressure. The vertical scraper 310 can clean the vertical inner wall of the heating box 3.

[0031] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A butanediol purification apparatus, comprising a heating chamber (3) for butanediol to enter the evaporation process, characterized in that: A motor (301) is installed on the inner top wall of the heating box (3). The output shaft of the motor (301) is connected to a rotating shaft (302) via a coupling. A hollow column (305) is welded to the end of the rotating shaft (302) away from the motor (301). A spring (306) is installed inside the hollow column (305). A movable column (307) is connected to one end of the spring (306). Four symmetrically welded columns are attached to the outer periphery of the rotating shaft (302). The stirring blades (303) are all slidably connected to a conical scraper (304) at one end away from the rotating shaft (302). The moving column (307) is equipped with a connecting plate (308) at one end away from the spring (306). Three horizontal scrapers (309) are symmetrically connected to the outer periphery of the connecting plate (308). A vertical scraper (310) is slidably connected to one end of the three horizontal scrapers (309) away from the connecting plate (308).

2. The butanediol purification apparatus according to claim 1, characterized in that: The top of the heating box (3) is connected to a separation pipe (101) and a feed pipe (206). A purification box (1) is installed on the top of the heating box (3). Multiple heat-conducting frames (102) are evenly connected to the vertical inner wall of the purification box (1). Each of the multiple heat-conducting frames (102) is equipped with a heating pipe (103).

3. The butanediol purification apparatus according to claim 2, characterized in that: One of the heat-conducting racks (102) has a liquid storage tube (104) installed on its top, and a conical guide plate (105) is connected inside the liquid storage tube (104).

4. The butanediol purification apparatus according to claim 2, characterized in that: The top of the purification box (1) is connected to a steam guide pipe (106), and the end of the steam guide pipe (106) away from the purification box (1) is connected to a condenser pipe (403), and the end of the condenser pipe (403) away from the steam guide pipe (106) is connected to a recovery pipe (404).

5. The butanediol purification apparatus according to claim 2, characterized in that: The purification box (1) is connected to a condensation box (4) and a collection box (5) on its outer periphery. The condensation box (4) is connected to an inlet pipe (401) and an outlet pipe (402) on its side.

6. The butanediol purification apparatus according to claim 2, characterized in that: The purification box (1) is equipped with a feeding pipe (2) on its outer periphery, and an upper pressure plate (203) and a lower pressure plate (204) are slidably installed inside the feeding pipe (2).

7. The butanediol purification apparatus according to claim 6, characterized in that: The top of the upper pressure plate (203) is connected to a connecting rod (202), and a pressing block (201) is installed at the end of the connecting rod (202) away from the upper pressure plate (203). The side of the feeding pipe (2) is connected to a feed port (205), and the feed port (205) is connected to the feed pipe (206).

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