Silica gel dehumidifying and heating reaction kettle

Abstract

The invention discloses a silica gel dehumidifying and heating reaction kettle which comprises a barrel, a heating coil pipe and a stirring shaft with a stirring paddle are arranged in the barrel, an air inlet, an air outlet and a motor used for driving the stirring shaft to rotate are arranged above the barrel, a partition plate made of diatomite is arranged in the reaction kettle, and the heating coil pipe is arranged in the barrel. The partition plate and the inner bottom of the reaction kettle form a cavity, one end of the heating coil pipe is communicated with the air inlet, the other end of the heating coil pipe extends into the cavity, and an exhaust pipe is arranged on the inner top wall of the barrel and communicated with the air outlet. The heating coil pipe is used for heating a silica gel raw material in the barrel body to quickly evaporate moisture in the silica gel raw material on one hand and conveying external compensation gas to the inner bottom of the barrel body on the other hand, the gas rises to take away the moisture and low molecules of the silica gel raw material, and then the moisture and low molecules are pumped away by the exhaust pipe above the barrel body; therefore, the silica gel raw material in the barrel body reaches an ideal state.

Description

Technical Field

[0001] The invention relates to the technical field of silica gel production equipment, and more specifically, to a silica gel dehumidification heating reaction kettle. Background Art

[0002] A reactor is a container for physical or chemical reactions. The motor drives the stirring shaft to stir the reactants to make them fully react to obtain the desired substances. When the silica gel raw materials are fully stirred and reacted in the reactor, they also need to be heated and evacuated. After heating in the reactor, silica gel will produce low molecules. While evacuating, water and low molecules are extracted. The traditional silica gel reactor has an exhaust port and an air inlet above the reactor, which results in a large amount of air just entering the reactor being mixed in the extracted gas during vacuuming, and less water and low molecules are extracted. In addition, the room temperature gas entering the reactor will lower the temperature in the reactor, affecting the reaction effect of the silica gel raw materials. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the air inlet and the air outlet of the traditional silica gel reactor are too close, and the efficiency of extracting humidity and low molecules in the reactor is low, thereby providing a silica gel heating reactor with better vacuuming effect.

[0004] The technical solution adopted by the present invention to solve its technical problem is: A silica gel dehumidification heating reactor comprises a cylinder, a heating coil and a stirring shaft with a stirring paddle are arranged in the cylinder, an air inlet, an air outlet and a motor for driving the stirring shaft to rotate are arranged on the top of the cylinder, a partition made of diatomaceous earth is arranged in the reactor, the partition and the inner bottom of the reactor form a cavity, one end of the heating coil is communicated with the air inlet, and the other end extends into the cavity, and an exhaust pipe is arranged on the inner top wall of the cylinder, and the exhaust pipe is communicated with the air outlet.

[0005] Preferably: the heating coil comprises an inner tube and an outer tube, a resistance wire and crystalline magnesium oxide powder are arranged in the gap between the outer tube and the inner tube, and purified gas is introduced into the inner tube.

[0006] Preferably, a heat preservation box filled with water is arranged above the cylinder, a coil is arranged in the heat preservation box, one end of the coil is used to be connected to the air source, and the other end is connected to the inner tube.

[0007] Preferably, the gas source is an inert gas or dried and purified air.

[0008] Preferably: heating tubes are arranged inside or on the surface of the stirring paddle.

[0009] Preferably, the stirring paddle is composed of a plurality of stirring blades arranged at intervals up and down, and each stirring blade is arranged offset from the length center of the stirring shaft.

[0010] Preferably: a wide-angle joint is installed at the bottom of the exhaust pipe.

[0011] Preferably, the coil and the heating coil are both made of metallic copper.

[0012] Preferably, the exhaust pipe extends to the top of the cylinder and passes through the heat preservation box.

[0013] Preferably: a spoiler is provided on the inner side wall of the cylinder.

[0014] The beneficial effects of the present invention are as follows: on the one hand, the heating coil heats the silica gel raw material in the cylinder to make the moisture in the silica gel raw material evaporate quickly; on the other hand, the external compensation gas is transported to the inner bottom of the cylinder, and the rising gas takes away the moisture and low molecular weight of the silica gel raw material, which are then extracted by the exhaust pipe above the cylinder, so that the silica gel raw material in the cylinder reaches an ideal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of multiple reactors installed on a steel structure platform; Figure 2 Schematic diagram of the reactor Figure 1 ; Figure 3 Schematic diagram of the reactor Figure 2 ; Figure 4 It is a schematic diagram of the stirring paddle being installed on the stirring shaft; Figure 5 is a schematic diagram of a heating coil; In the figure: 1. Cylinder; 11. Air outlet; 12. Air inlet; 13. Spoiler; 2. Heating coil; 21. Inner tube; 22. Outer tube; 23. Resistance wire; 24. Crystalline magnesium oxide powder; 3. Stirring shaft; 4. Stirring paddle; 5. Exhaust pipe; 6. Motor; 7. Partition; 8. Insulation box; 9. Coil. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0017] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0018] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0019] according to Figure 1-3 As shown, a silica gel dehumidification heating reactor, multiple reactors are installed on a steel structure platform, the reactor includes a cylinder 1, a heating coil 2 and a stirring shaft 3 with a stirring paddle 4 are arranged in the cylinder 1, an air inlet 12, an air outlet 11 and a motor 6 are arranged above the cylinder 1, the body of the motor 6 is fixedly connected to the outer top of the cylinder 1, the output shaft of the motor 6 is coaxially fixedly connected to the stirring shaft 3, a partition 7 made of diatomaceous earth is arranged in the reactor, the partition 7 and the inner bottom of the reactor form a cavity, one end of the heating coil 2 is communicated with the air inlet 12, and the other end extends into the cavity, an exhaust pipe 5 is arranged on the inner top wall of the cylinder 1, the exhaust pipe 5 is communicated with the air outlet 11, and a vacuum pump is arranged at the air outlet 11.

[0020] according to Figure 3 As shown, a water-filled insulation box 8 is arranged above the cylinder 1, and a coil 9 is arranged in the insulation box 8. One end of the coil 9 is used to connect to the gas source, and the other end is connected to the inner tube 21. The gas source is an inert gas or air that has been dried and purified. The coil 9 and the heating coil 2 are both made of metal copper. When the heating coil 2 heats the cylinder 1, it also transfers the heat on it to the coil 9 to heat the water in the insulation box 8. The exhaust pipe 5 also extends from the insulation box 8 to the top of the cylinder 1. The high-temperature humid air in the cylinder 1 extracted by the exhaust pipe 5 will also heat the water in the insulation box 8. In addition, electric auxiliary heating can be set in the insulation box 8. The gas entering the cylinder is preheated in the coil 9, and then heated again in the heating coil 2, so that the gas entering the cylinder 1 is close to the temperature in the cylinder 1, avoiding that the low-temperature air greatly reduces the temperature in the cylinder 1, that is, reducing energy consumption, and improving the heating and dehumidification effect of the reactor.

[0021] according to Figure 4 As shown, the heating coil 2 includes an inner tube 21 and an outer tube 22. A resistance wire 23 and a crystallized magnesium oxide powder 24 are provided in the gap between the outer tube 22 and the inner tube 21. The purified gas flows in the inner tube 21. The outer tube 22 mainly serves to increase the reaction temperature in the cylinder 1. The temperature range is between 100° and 200°. The heating reaction temperature of the silica gel raw material is preferably 130°. The inner tube 21 is mainly used to heat the purified gas, which not only fully utilizes the heat source of the resistance wire 23, but also effectively controls the temperature in the cylinder 1 by using the purified gas. Figure 2As shown, the heating coil 2 is fixed to the inner wall of the cylinder 1 by a lock, and a gap is left between the inner walls of the cylinder 1. In order to better heat the silicone raw material in the cylinder 1, a heating array tube is also provided on the hose paddle. The heating array tube can be installed inside the stirring paddle 4 or fixed on the outer surface of the stirring paddle 4. In this application, the heating array tube is preferably installed in the hose paddle. The heating array tube, like the heating coil 2, is electrically heated.

[0022] according to Figure 5 As shown, the stirring blade 4 is composed of a plurality of plate-shaped stirring blades arranged at intervals up and down, each stirring blade is arranged away from the length center of the stirring shaft 3, and a spoiler 13 is arranged on the inner side wall of the cylinder 1. The two ends of the stirring blade are arranged asymmetrically on the stirring shaft 3, and the adjacent two stirring blades are arranged staggered to avoid the silica gel raw material from generating fixed vortex in the cylinder 1, and the silica gel raw material does not react fully. The staggered setting of the stirring blade and the coordination of the spoiler 13 make the silica gel raw material tumble in the cylinder 1, aggravating the reaction of the silica gel raw material in the cylinder 1. In addition, the disruptor is arranged along the rotation direction of the stirring shaft 3, and forms an angle of 60° with the inner wall of the cylinder 1 (the rubber material first collides with the obtuse angle side of the disruptor along the stirring direction of the stirring shaft 3), and a reinforcing rib is arranged on the acute angle side of the spoiler 13 to ensure the service life of the disruptor.

[0023] according to Figure 1-5 As shown, the heating coil 2 heats the silica gel raw material in the cylinder 1 on the one hand, so that the moisture in the silica gel raw material evaporates quickly, and on the other hand, it transports the external compensation gas to the inner bottom of the cylinder 1. The rising gas takes away the moisture and low molecular weight of the silica gel raw material, and then is extracted by the exhaust pipe 5 above the cylinder 1, so that the silica gel raw material in the cylinder 1 reaches an ideal state. A wide-angle joint is installed at the bottom of the exhaust pipe 5, which can suck moisture from the cylinder body 1 more widely. A hygrometer and a barometer are arranged above the cylinder body 1. The vacuum pump connected to the exhaust pipe 5 is started intermittently. When the barometer detects that the pressure in the cylinder body 1 is greater than a set critical value, the vacuum pump starts to suck the moisture in the cylinder body 1. When the barometer detects that the pressure in the cylinder body 1 is less than a set critical value, the vacuum pump stops sucking the humidity in the cylinder body 1. The suction is repeated until the hygrometer shows that the humidity in the cylinder body 1 reaches within the set numerical range. The air inlet end is arranged at the bottom of the cylinder body 1, and the air outlet end is arranged at the top of the cylinder body 1. This also avoids mutual influence between the air inlet end and the air outlet end, thereby improving the moisture suction efficiency in the cylinder body 1.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A silica gel dehumidification heating reactor, comprising a cylinder (1), wherein a heating coil (2) and a stirring shaft (3) with a stirring paddle (4) are arranged in the cylinder (1), and an air inlet (12), an air outlet (11) and a motor (6) for driving the stirring shaft (3) to rotate are arranged above the cylinder (1), wherein: The reactor is provided with a partition (7) made of diatomaceous earth, the partition (7) and the inner bottom of the reactor form a cavity, one end of the heating coil (2) is connected to the air inlet (12), and the other end extends into the cavity, and an exhaust pipe (5) is provided on the inner top wall of the cylinder (1), and the exhaust pipe (5) is connected to the air outlet (11).

2. The silica gel dehumidification heating reactor according to claim 1 is characterized in that: The heating coil (2) comprises an inner tube (21) and an outer tube (22); a resistance wire (23) and crystalline magnesium oxide powder (24) are provided in the gap between the outer tube (22) and the inner tube (21); and purified gas is passed into the inner tube (21).

3. The silica gel dehumidification heating reactor according to claim 2 is characterized in that: A heat preservation box (8) filled with water is arranged above the cylinder (1), and a coil (9) is arranged in the heat preservation box (8). One end of the coil (9) is used to be connected to an air source, and the other end is connected to an inner tube (21).

4. The silica gel dehumidification heating reactor according to claim 3 is characterized in that: The gas source is an inert gas or dried and purified air.

5. The silica gel dehumidification heating reactor according to claim 4 is characterized in that: The stirring paddle (4) is provided with a heating tube array inside or on its surface.

6. The silica gel dehumidification heating reactor according to claim 5 is characterized in that: The stirring paddle (4) is composed of a plurality of stirring blades arranged at intervals up and down, and each stirring blade is arranged offset from the length center of the stirring shaft (3).

7. The silica gel dehumidification heating reactor according to claim 6 is characterized in that: A wide-angle joint is installed at the bottom of the air extraction pipe (5).

8. The silica gel dehumidification heating reactor according to claim 7 is characterized in that: The coil (9) and the heating coil (2) are both made of metal copper.

9. The silica gel dehumidification heating reactor according to claim 8 is characterized in that: The air extraction pipe (5) extends to the top of the cylinder (1) and passes through the heat preservation box (8).

10. The silica gel dehumidification heating reactor according to claim 9, characterized in that: A spoiler (13) is provided on the inner side wall of the cylinder (1).

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