Constant-temperature drying box for processing polyether organic silicon defoaming agent

Abstract

The constant-temperature drying box comprises a machine box shell and a drying inner box in the machine box shell, a transverse grid and a vertical grid which are located in the machine box shell are movably installed on the two sides of the drying inner box respectively, a vertical connecting rod is movably connected to the middle of one side of the transverse grid, and a horizontal connecting rod is movably connected to the middle of the other side of the vertical connecting rod. A transverse connecting rod is movably connected to the middle of one side of the vertical grid, and an up-down swing telescopic motor and a front-back swing telescopic motor are installed at the positions, corresponding to the vertical connecting rod and the transverse connecting rod, in the case shell correspondingly. The vertical air swinging telescopic motor drives the transverse grid to swing up and down, the front-back air swinging telescopic motor drives the vertical grid to swing front and back, and therefore the effect of changing the hot air flowing direction and path is achieved, the transverse grid and the vertical grid swing periodically, all parts in the drying inner box can make contact with flowing hot air, and the drying effect is improved. Hot air circulation dead angles are avoided, and the heating uniformity of experimental samples is improved.

Description

Technical Field

[0001] This utility model relates to the field of drying oven technology, specifically a constant temperature drying oven for processing polyether silicone defoamer. Background Technology

[0002] Adding defoamers has been proven to be the most effective and economical method for eliminating harmful foam. Polyether-modified polysiloxane defoamers are a new type of high-efficiency defoamer that organically combines the advantages of both polyether and silicone defoamers. Due to their strong defoaming effect, good heat resistance, shear resistance, and acid, alkali, and salt resistance, coupled with their non-toxic, odorless, storage-stable, and easy-to-use properties, they are widely used in various applications, especially for defoaming under harsh conditions, such as high-temperature dyeing and fermentation processes in textiles. However, such defoamers are still in the research and development stage in my country, and many manufacturers rely on imports. Therefore, research on polyether-modified silicone oil defoamers is of practical significance and is also very necessary.

[0003] In the processing, production, and research and development of polyether silicone defoamers, silicone paste is prepared using dimethyl silicone oil and silica. Then, silicone paste, polyether, emulsifier, and water are heated, sheared, and stirred. After cooling, stabilizers and preservatives are added to obtain the product. The preparation of silicone paste requires a constant temperature drying condition of 150℃, necessitating a constant temperature drying oven. While commercially available constant temperature drying ovens have evenly spaced ventilation holes on both sides of the inner chamber, the heating wires and fans have specific dimensions, making it impossible to evenly align them with the ventilation holes. Furthermore, the air outlet of the drying oven is usually located at the top, resulting in a curved airflow path. Therefore, when hot air is blown, the air, as a fluid, automatically forms a fixed path of least resistance and shortest travel, leading to significant unevenness in the hot air flow through the inner chamber. This creates a temperature difference between the directly blown hot air location and the dead zones in the hot air circulation, affecting the heating of the experimental samples. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a constant temperature drying oven for processing polyether silicone defoamers, which solves the problem of uneven hot air flow through the inner drying chamber in existing constant temperature drying ovens when preparing silicone paste during the processing of polyether silicone defoamers.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A constant temperature drying oven for processing polyether silicone defoamer includes an outer casing and an inner drying chamber inside. The front of the outer casing is fitted with a door that seals and covers the front of the inner drying chamber. Ventilation holes are provided on both sides of the inner drying chamber. A fan and heating wire are provided on one side of the inner drying chamber, located inside the outer casing. Air ducts are provided on the other side and top of the inner drying chamber. Horizontal and vertical grilles are movably installed on both sides of the inner drying chamber, located inside the outer casing.

[0007] A vertical connecting rod is movably connected to the middle of one side of the horizontal grille, and a horizontal connecting rod is movably connected to the middle of one side of the vertical grille. One end of each of the vertical and horizontal connecting rods is vertically fixed with a movable buckle, and a locking pin is movably engaged in the movable buckle. Inside the casing, at positions corresponding to the vertical and horizontal connecting rods, an up-and-down swing telescopic motor and a front-and-back swing telescopic motor are respectively installed. The two locking pins are respectively fixed to the movable ends of the up-and-down swing telescopic motor and the front-and-back swing telescopic motor.

[0008] Preferably, it also includes a partition vertically disposed inside the outer casing of the chassis on the side of the heating wire away from the inner drying chamber, and heat insulation layers are provided on the back of the inner wall of the chassis, between the air duct and the inner wall of the chassis, and on the side of the partition away from the inner drying chamber.

[0009] Preferably, the horizontal grille is located between the fan and the inner drying chamber, and the vertical grille is located between the inner drying chamber and the air duct on one side.

[0010] Preferably, both the horizontal and vertical grids include multiple grid plates. The multiple grid plates of the horizontal grid are equidistantly arranged vertically on one side of the drying inner chamber, and the multiple grid plates of the vertical grid are equidistantly arranged longitudinally on one side of the drying inner chamber.

[0011] Preferably, the horizontal grille and the vertical grille are installed inside the chassis housing by mounting vertical brackets and mounting horizontal brackets, respectively. The mounting vertical brackets are located on the side of the horizontal grille away from the vertical connecting rod, and the mounting horizontal brackets are located on the side of the vertical grille away from the horizontal connecting rod.

[0012] Preferably, a wire mesh frame is horizontally installed inside the drying chamber.

[0013] Preferably, the door is provided with an observation window.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention utilizes an up-and-down swing-out motor to drive the horizontal grille to swing up and down, and a front-and-back swing-out motor to drive the vertical grille to swing back and forth, thereby changing the direction and path of hot air flow. The periodic swinging of the horizontal and vertical grilles ensures that all parts inside the drying chamber can come into contact with the flowing hot air, avoiding dead zones in hot air circulation, improving the uniformity of heating of experimental samples, and solving the problem of uneven hot air flow through the drying chamber in existing constant temperature drying ovens when preparing silicone paste during the processing of polyether silicone defoamers. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 3 This is a side view of the internal structure of the drying inner box of this utility model;

[0019] Figure 4 This is a front view of the telescopic motor for the vertical swing fan of this utility model;

[0020] Figure 5 This is a top view of the front and rear swing telescopic motor of this utility model.

[0021] In the diagram: 1. Chassis shell; 101. Partition; 102. Thermal insulation layer; 2. Drying inner chamber; 201. Ventilation hole; 3. Chamber door; 301. Observation window; 4. Fan; 5. Heating wire; 6. Air duct; 7. Horizontal grille; 8. Vertical grille; 9. Vertical connecting rod; 10. Horizontal connecting rod; 11. Movable buckle; 12. Locking pin; 13. Upward and downward swing telescopic motor; 14. Front and rear swing telescopic motor; 15. Mounting vertical frame; 16. Mounting horizontal frame; 17. Grid frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-5As shown, this utility model provides a technical solution: a constant temperature drying oven for processing polyether silicone defoamer, including a casing 1 and an inner drying chamber 2 inside it. A wire mesh frame 17 is horizontally installed inside the inner drying chamber 2. A door 3 that seals and covers the front of the inner drying chamber 2 is installed on the front of the casing 1. An observation window 301 is provided on the door 3. Ventilation holes 201 are provided on both sides of the inner drying chamber 2. A fan 4 and a heating wire 5 located inside the casing 1 are provided on one side of the inner drying chamber 2. Air ducts 6 are provided on the other side and top of the inner drying chamber 2.

[0024] It also includes a partition 101 vertically installed inside the outer casing 1 on the side of the heating wire 5 away from the inner drying chamber 2. A heat insulation layer 102 is provided on the back of the inner wall of the outer casing 1, between the air duct 6 and the inner wall of the outer casing 1, and on the side of the partition 101 away from the inner drying chamber 2. There is an air inlet on the left side of the outer casing 1. Air enters through the air inlet, passes through the small holes on the partition 101 and is heated by the heating wire 5, and then blows into the inner drying chamber 2. It flows out from the air outlet at the top of the outer casing 1 through the air duct 6, so as to achieve hot air heating and maintain constant temperature.

[0025] The drying inner chamber 2 is movably installed on both sides with a horizontal grille 7 and a vertical grille 8 located inside the outer casing 1. The horizontal grille 7 is located between the fan 4 and the drying inner chamber 2, and the vertical grille 8 is located between the drying inner chamber 2 and the air duct 6 on one side. Both the horizontal grille 7 and the vertical grille 8 include multiple grille plates. The multiple grille plates of the horizontal grille 7 are equidistantly arranged vertically on one side of the drying inner chamber 2, and the multiple grille plates of the vertical grille 8 are equidistantly arranged longitudinally on one side of the drying inner chamber 2.

[0026] A vertical connecting rod 9 is movably connected to the middle of one side of the horizontal grille 7, and a horizontal connecting rod 10 is movably connected to the middle of one side of the vertical grille 8. The horizontal grille 7 and the vertical grille 8 are respectively installed inside the chassis shell 1 by mounting vertical bracket 15 and mounting horizontal bracket 16. The mounting vertical bracket 15 is located on the side of the horizontal grille 7 away from the vertical connecting rod 9, and the mounting horizontal bracket 16 is located on the side of the vertical grille 8 away from the horizontal connecting rod 10.

[0027] One end of each of the vertical connecting rod 9 and the horizontal connecting rod 10 is vertically fixed with a movable buckle 11. A locking pin 12 is movably engaged inside the movable buckle 11. Inside the outer casing 1, at the positions corresponding to the vertical connecting rod 9 and the horizontal connecting rod 10, an up-and-down swing telescopic motor 13 and a front-and-back swing telescopic motor 14 are respectively installed. The two locking pins 12 are respectively fixed to the movable ends of the up-and-down swing telescopic motor 13 and the front-and-back swing telescopic motor 14.

[0028] Working principle:

[0029] The heating wire 5 heats the flowing air. During the process of the fan 4 driving the hot air to circulate, the up-and-down swing motor 13 drives the horizontal grille 7 to swing up and down, and the front-and-back swing motor 14 drives the vertical grille 8 to swing back and forth, thereby changing the direction and path of the hot air flow. The periodic swing of the horizontal grille 7 and the vertical grille 8 allows all parts inside the drying chamber 2 to come into contact with the flowing hot air, avoiding dead zones in the hot air flow.

[0030] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] 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 constant temperature drying oven for processing polyether silicone defoamer, comprising a casing shell (1) and an inner drying chamber (2) therein, wherein a door (3) is installed on the front of the casing shell (1) and sealed to the front of the inner drying chamber (2), ventilation holes (201) are provided on both sides of the inner drying chamber (2), a fan (4) and a heating wire (5) located inside the casing shell (1) are provided on one side of the inner drying chamber (2), and air ducts (6) are provided on the other side and top of the inner drying chamber (2), characterized in that: The drying inner box (2) is movably installed on both sides with horizontal grilles (7) and vertical grilles (8) located inside the outer casing (1). A vertical connecting rod (9) is movably connected to the middle of one side of the horizontal grille (7), and a horizontal connecting rod (10) is movably connected to the middle of one side of the vertical grille (8). One end of the vertical connecting rod (9) and the horizontal connecting rod (10) is respectively vertically fixed with a movable buckle (11). A locking pin (12) is movably engaged in the movable buckle (11). Inside the outer casing (1) of the chassis, a vertical swing telescopic motor (13) and a front and rear swing telescopic motor (14) are respectively installed at the positions corresponding to the vertical connecting rod (9) and the horizontal connecting rod (10). The two locking pins (12) are respectively fixed on the movable ends of the vertical swing telescopic motor (13) and the front and rear swing telescopic motor (14).

2. The constant temperature drying oven for processing polyether silicone defoamer according to claim 1, characterized in that: It also includes a partition (101) vertically installed inside the outer casing (1) on the side of the heating wire (5) away from the drying inner box (2). The back of the inner wall of the outer casing (1), the air duct (6) between the inner wall of the outer casing (1) and the inner wall of the outer casing (1), and the side of the partition (101) away from the drying inner box (2) are all provided with heat insulation layer (102).

3. The constant temperature drying oven for processing polyether silicone defoamer according to claim 1, characterized in that: The horizontal grille (7) is located between the fan (4) and the drying inner box (2), and the vertical grille (8) is located between the drying inner box (2) and the air duct (6) on one side.

4. The constant temperature drying oven for processing polyether silicone defoamer according to claim 1, characterized in that: Both the horizontal grid (7) and the vertical grid (8) include multiple grid plates. The multiple grid plates of the horizontal grid (7) are arranged equidistantly along the vertical direction on one side of the drying inner box (2), and the multiple grid plates of the vertical grid (8) are arranged equidistantly along the longitudinal direction on one side of the drying inner box (2).

5. The constant temperature drying oven for processing polyether silicone defoamer according to claim 1, characterized in that: The horizontal grille (7) and the vertical grille (8) are installed inside the chassis shell (1) by means of a mounting bracket (15) and a mounting bracket (16), respectively. The mounting bracket (15) is located on the side of the horizontal grille (7) away from the vertical connecting rod (9), and the mounting bracket (16) is located on the side of the vertical grille (8) away from the horizontal connecting rod (10).

6. The constant temperature drying oven for processing polyether silicone defoamer according to claim 1, characterized in that: A wire mesh frame (17) is horizontally installed inside the drying inner box (2).

7. The constant temperature drying oven for processing polyether silicone defoamer according to claim 1, characterized in that: An observation window (301) is provided on the box door (3).

Images