Vacuum dehydration device for synthesis of polyester polyol

Abstract

The utility model provides a vacuum dehydration device for polyester polyol synthesis, which comprises a vacuum dehydration box, a feed valve is fixedly mounted at the top of the vacuum dehydration box, a vacuum extraction valve is fixedly mounted on the right side of the top of the vacuum dehydration box, a discharge valve is fixedly mounted at the bottom of the vacuum dehydration box, and a discharge valve is fixedly mounted at the bottom of the vacuum dehydration box. An adjusting mechanism is arranged on the surface of the vacuum dewatering box, the adjusting mechanism comprises a rotating motor, a driving motor and a connecting rod, the rotating motor is fixedly installed at the top of the vacuum dewatering box, and the driving motor is arranged in an inner cavity of the vacuum dewatering box. The scraping plate is attached to the inner wall of the vacuum dewatering box, the situation that the scraping plate is continuously attached to the inner wall of the vacuum dewatering box, and consequently the abrasion degree of the scraping plate is large is effectively avoided, the service life of the scraping plate is prolonged, the scraping cost of the inner wall of the vacuum dewatering box is reduced, and an operator can use the scraping plate conveniently.

Description

Technical Field

[0001] The utility model relates to a vacuum dehydration device for synthesizing polyester polyols, belonging to the technical field of vacuum dehydration devices. Background Art

[0002] Vacuum dehydration equipment utilizes the principle of lowering the boiling point of water in a vacuum environment to rapidly evaporate water from materials, thereby achieving dehydration. It is widely used in the food, pharmaceutical, and chemical industries, offering advantages such as effective water removal, simple operation, a high degree of automation, and no damage to the liquid components.

[0003] A vacuum dehydration device is used in the synthesis process of polyester polyols. Existing vacuum dehydration devices are usually equipped with scrapers and cleaning devices. The scrapers are usually located inside the cylinder and are used to scrape materials on the cylinder wall to prevent material accumulation. However, the position of the existing scrapers is relatively fixed and is always attached to the inner wall of the cylinder. When there is no need to scrape the material, the scrapers will still be worn, resulting in a short service life of the scrapers and inconvenience for operators to use.

[0004] Therefore, a vacuum dehydration device for synthesizing polyester polyols is proposed. Utility Model Content

[0005] In view of this, the utility model provides a vacuum dehydration device for polyester polyol synthesis to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the utility model is achieved as follows: a vacuum dehydration device for polyester polyol synthesis, comprising a vacuum dehydration box, a feed valve fixedly installed on the top of the vacuum dehydration box, a vacuum exhaust valve fixedly installed on the right side of the top of the vacuum dehydration box, a discharge valve fixedly installed on the bottom of the vacuum dehydration box, an adjustment mechanism provided on the surface of the vacuum dehydration box, the adjustment mechanism comprising a rotating motor, a driving motor and a connecting rod, the rotating motor fixedly installed on the top of the vacuum dehydration box, the driving motor arranged in the inner cavity of the vacuum dehydration box, the two connecting rods are arranged on the upper and lower sides of the inner cavity of the vacuum dehydration box, the outer sides of the four connecting rods are movably connected with movable plates, and the outer sides of the two movable plates are provided with scraping plates.

[0007] Further preferably, the output end of the rotating motor is fixedly connected to a mounting frame, a cavity is opened on the inner surface of the mounting frame, the drive motor is fixedly installed at the bottom of the inner cavity of the cavity, the output end of the drive motor is fixedly connected to a screw rod, the upper and lower sides of the screw rod surface are threadedly connected with screw blocks, the inner sides of the four connecting rods are movably connected to the outer sides of the two screw blocks, and stirring rods are fixedly installed on the left and right sides of the mounting frame.

[0008] Further preferably, limiting rods are fixedly installed on the inner side of the installation frame, and the two limiting rods are slidably connected to the inner surfaces of the two screw blocks.

[0009] Further preferably, the inner sides of the two movable plates are threadedly connected with mounting bolts, and the outer sides of the eight mounting bolts are threadedly connected to the inner surface of the scraper plate.

[0010] Further preferably, a temperature sensing probe is fixedly installed on the left side of the top of the inner cavity of the vacuum dehydration box, a temperature display panel is fixedly installed on the left side of the top of the vacuum dehydration box, and the output end of the temperature sensing probe is electrically connected to the input end of the temperature display panel.

[0011] Further preferably, a vacuum detection probe is fixedly installed on the right side of the top of the inner cavity of the vacuum dehydration box, a vacuum gauge is fixedly installed on the right side of the top of the vacuum dehydration box, and the output end of the vacuum detection probe is electrically connected to the input end of the vacuum gauge.

[0012] Further preferably, a heating cavity is provided on the inner surface of the vacuum dehydration box, and an electric heating wire is fixedly installed in the inner cavity of the heating cavity.

[0013] Further preferably, a bottom plate is fixedly installed on the bottom of the vacuum dehydration box, and the top of the bottom plate is threadedly connected with anchor bolts.

[0014] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. The utility model is provided with an adjustment mechanism. Through the output of the driving motor, the screw drives the screw block to move outward. At this time, the connecting rod drives the movable plate and the scraper plate to move outward, so that the scraper plate is fitted to the inner wall of the vacuum dehydration box. Subsequently, through the output of the rotating motor, the scraper plate is made to scrape the material on the inner wall of the vacuum dehydration box. After adjusting the position of the scraper plate, it is convenient to fit the scraper plate to the inner wall of the vacuum dehydration box when scraping is needed, effectively avoiding the scraper plate from being continuously fitted to the inner wall of the vacuum dehydration box, resulting in a large degree of wear on the scraper plate, thereby increasing the service life of the scraper plate, reducing the cost of scraping the inner wall of the vacuum dehydration box, and making it convenient for operators to use.

[0016] Second, the utility model can limit the movement of the screw block by arranging a limit rod, so as to avoid deviation when the screw block moves, thereby affecting the adjustment work of the scraper plate position; by arranging the mounting bolts, the scraper plate can be disassembled, and it is convenient to replace the scraper plate when the scraper plate is seriously worn; by arranging the temperature sensing probe and the temperature display panel, the temperature in the inner cavity of the vacuum dehydration box can be conveniently detected, and the operator can adjust the high temperature in the inner cavity of the vacuum dehydration box in time; by arranging the vacuum detection probe and the vacuum gauge, the gas in the inner cavity of the vacuum dehydration box can be conveniently detected, and the operator can understand whether the inner cavity of the vacuum dehydration box has reached a vacuum state; by arranging the heating chamber and the electric heating wire, the temperature in the inner cavity of the vacuum dehydration box can be conveniently heated, so that the material in the cavity of the vacuum dehydration box can be subsequently heated and dehydrated; by arranging the anchor bolts, the overall equipment can be stabilized to avoid the situation where the overall equipment falls over due to accidental collision.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional front view structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the electric heating wire structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the box of the present utility model;

[0022] Figure 4 This is a schematic diagram of the drive motor structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the adjustment mechanism of the present utility model.

[0024] Figure numerals: 1. Vacuum dehydration box; 2. Adjustment mechanism; 201. Rotating motor; 202. Mounting frame; 203. Cavity; 204. Driving motor; 205. Screw; 206. Screw block; 207. Connecting rod; 208. Moving plate; 209. Scraper plate; 210. Stirring rod; 211. Mounting bolt; 212. Limit rod; 3. Vacuum exhaust valve; 4. Feed valve; 5. Discharge valve; 6. Bottom plate; 7. Anchor bolt; 8. Temperature sensing probe; 9. Temperature display panel; 10. Vacuum detection probe; 11. Vacuum gauge; 12. Heating chamber; 13. Electric heating wire. DETAILED DESCRIPTION

[0025] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 4 and Figure 5As shown, the embodiment of the present invention provides a vacuum dehydration device for polyester polyol synthesis, including a vacuum dehydration box 1, a feed valve 4 is fixedly installed on the top of the vacuum dehydration box 1, a vacuum exhaust valve 3 is fixedly installed on the right side of the top of the vacuum dehydration box 1, a discharge valve 5 is fixedly installed on the bottom of the vacuum dehydration box 1, and an adjustment mechanism 2 is provided on the surface of the vacuum dehydration box 1. The adjustment mechanism 2 includes a rotating motor 201, a driving motor 204 and a connecting rod 207. The rotating motor 201 is fixedly installed on the top of the vacuum dehydration box 1, the driving motor 204 is arranged in the inner cavity of the vacuum dehydration box 1, and two connecting rods 207 are arranged on the upper and lower sides of the inner cavity of the vacuum dehydration box 1. The outer sides of the four connecting rods 207 are movably connected with movable plates 208, and the outer sides of the two movable plates 208 are provided with scraping plates 209. The output end of the rotating motor 201 is fixedly connected to the mounting frame 202, and a cavity 203 is opened on the inner surface of the mounting frame 202. The driving motor 204 is fixedly installed at the bottom of the inner cavity of the cavity 203. The output end of the driving motor 204 is fixedly connected to the screw rod 205, and the upper and lower sides of the surface of the screw rod 205 are threadedly connected with screw blocks 206. The inner sides of the four connecting rods 207 are movably connected to the outer sides of the two screw blocks 206. The stirring rods 210 are fixedly installed on the left and right sides of the mounting frame 202. The inner side of the mounting frame 202 is fixedly installed with limit rods 212, and the two limit rods 212 are slidably connected to the inner surfaces of the two screw blocks 206. The inner sides of the two movable plates 208 are threadedly connected with mounting bolts 211, and the outer sides of the eight mounting bolts 211 are threadedly connected to the inner surface of the scraper plate 209.

[0029] By setting the adjustment mechanism 2, through the output of the driving motor 204, the screw rod 205 drives the screw block 206 to move outward, and at this time the connecting rod 207 drives the movable plate 208 and the scraper plate 209 to move outward, so that the scraper plate 209 is attached to the inner wall of the vacuum dehydration box 1, and then through the output of the rotating motor 201, the scraper plate 209 is used to scrape the material on the inner wall of the vacuum dehydration box 1. After adjusting the position of the scraper plate 209, it is convenient to make the scraper plate 209 attached to the inner wall of the vacuum dehydration box 1 when scraping is needed, effectively avoiding the scraper plate 20 9 is continuously attached to the inner wall of the vacuum dehydration box 1, resulting in a greater degree of wear on the scraper plate 209, thereby increasing the service life of the scraper plate 209, reducing the cost of scraping the inner wall of the vacuum dehydration box 1, and making it easier for operators to use. By setting a limit rod 212, the movement of the screw block 206 can be limited to avoid deviation when the screw block 206 moves, thereby affecting the adjustment of the position of the scraper plate 209. By setting a mounting bolt 211, the scraper plate 209 can be disassembled, which is convenient for replacing the scraper plate 209 when the scraper plate 209 is severely worn.

[0030] Example 2

[0031] like Figure 1-3 As shown, in one embodiment, a temperature sensing probe 8 is fixedly installed on the left side of the top of the inner cavity of the vacuum dehydration box 1, a temperature display panel 9 is fixedly installed on the left side of the top of the vacuum dehydration box 1, and the output end of the temperature sensing probe 8 is electrically connected to the input end of the temperature display panel 9, a vacuum detection probe 10 is fixedly installed on the right side of the top of the inner cavity of the vacuum dehydration box 1, a vacuum gauge 11 is fixedly installed on the right side of the top of the vacuum dehydration box 1, and the output end of the vacuum detection probe 10 is electrically connected to the input end of the vacuum gauge 11, a heating cavity 12 is opened on the inner surface of the vacuum dehydration box 1, an electric heating wire 13 is fixedly installed in the inner cavity of the heating cavity 12, a base plate 6 is fixedly installed at the bottom of the vacuum dehydration box 1, and the top of the base plate 6 is threadedly connected with anchor bolts 7.

[0032] By setting the temperature sensing probe 8 and the temperature display panel 9, the temperature in the inner cavity of the vacuum dehydration box 1 can be conveniently detected, which is convenient for the operator to timely adjust the high temperature in the inner cavity of the vacuum dehydration box 1. By setting the vacuum detection probe 10 and the vacuum meter 11, the gas in the inner cavity of the vacuum dehydration box 1 can be conveniently detected, which is convenient for the operator to understand whether the inner cavity of the vacuum dehydration box 1 has reached a vacuum state. By setting the heating chamber 12 and the electric heating wire 13, the temperature in the inner cavity of the vacuum dehydration box 1 can be conveniently heated, so that the material in the inner cavity of the vacuum dehydration box 1 can be subsequently heated and dehydrated. By setting the anchor bolts 7, the overall equipment can be stabilized to avoid the overall equipment from tipping over due to accidental collision.

[0033] When the present invention is working: after the material is injected into the inner cavity of the vacuum dehydration box 1 through the feed valve 4, the mounting frame 202 and the stirring rod 210 are driven to rotate by the rotating motor 201, and the material is started to be stirred. Subsequently, the screw rod 205 is rotated by the output of the driving motor 204, and the screw block 206 is moved outward. At this time, the connecting rod 207 is flipped and drives the moving plate 208 and the scraper plate 209 to move outward, so that the scraper plate 209 is attached to the inner wall of the vacuum dehydration box 1, thereby starting to scrape the material on the inner wall of the vacuum dehydration box 1.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A vacuum dehydration device for polyester polyol synthesis, comprising a vacuum dehydration box (1), characterized in that: A feed valve (4) is fixedly installed on the top of the vacuum dehydration box (1), a vacuum exhaust valve (3) is fixedly installed on the right side of the top of the vacuum dehydration box (1), and a discharge valve (5) is fixedly installed on the bottom of the vacuum dehydration box (1). An adjustment mechanism (2) is provided on the surface of the vacuum dehydration box (1), and the adjustment mechanism (2) comprises a rotating motor (201), a driving motor (204) and a connecting rod (207). The rotating motor (201) is fixedly installed on the top of the vacuum dehydration box (1), and the driving motor (204) is arranged in the inner cavity of the vacuum dehydration box (1). The two connecting rods (207) are both arranged on the upper and lower sides of the inner cavity of the vacuum dehydration box (1). The outer sides of the four connecting rods (207) are all movably connected to a movable plate (208), and the outer sides of the two movable plates (208) are both provided with a scraper plate (209).

2. A vacuum dehydration device for polyester polyol synthesis according to claim 1, characterized in that: The output end of the rotating motor (201) is fixedly connected to a mounting frame (202), the inner surface of the mounting frame (202) is provided with a cavity (203), the driving motor (204) is fixedly installed at the bottom of the inner cavity of the cavity (203), the output end of the driving motor (204) is fixedly connected to a screw rod (205), the upper and lower sides of the surface of the screw rod (205) are both threadedly connected to screw blocks (206), the inner sides of the four connecting rods (207) are movably connected to the outer sides of the two screw blocks (206), and stirring rods (210) are fixedly installed on the left and right sides of the mounting frame (202).

3. A vacuum dehydration device for polyester polyol synthesis according to claim 2, characterized in that: Limit rods (212) are fixedly installed on the inner side of the installation frame (202), and the two limit rods (212) are slidably connected to the inner surfaces of the two screw blocks (206).

4. A vacuum dehydration device for polyester polyol synthesis according to claim 1, characterized in that: The inner sides of the two movable plates (208) are threadedly connected with mounting bolts (211), and the outer sides of the eight mounting bolts (211) are threadedly connected to the inner surface of the scraper plate (209).

5. The vacuum dehydration device for polyester polyol synthesis according to claim 1, characterized in that: A temperature sensing probe (8) is fixedly installed on the left side of the top of the inner cavity of the vacuum dehydration box (1), and a temperature display panel (9) is fixedly installed on the left side of the top of the vacuum dehydration box (1). The output end of the temperature sensing probe (8) is electrically connected to the input end of the temperature display panel (9).

6. The vacuum dehydration device for polyester polyol synthesis according to claim 1, characterized in that: A vacuum detection probe (10) is fixedly installed on the right side of the top of the inner cavity of the vacuum dehydration box (1), a vacuum gauge (11) is fixedly installed on the right side of the top of the vacuum dehydration box (1), and the output end of the vacuum detection probe (10) is electrically connected to the input end of the vacuum gauge (11).

7. The vacuum dehydration device for polyester polyol synthesis according to claim 1, characterized in that: A heating cavity (12) is provided on the inner surface of the vacuum dehydration box (1), and an electric heating wire (13) is fixedly installed in the inner cavity of the heating cavity (12).

8. The vacuum dehydration device for polyester polyol synthesis according to claim 1, characterized in that: A bottom plate (6) is fixedly mounted on the bottom of the vacuum dehydration box (1), and the top of the bottom plate (6) is threadedly connected with anchor bolts (7).

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