Refining reaction device for preparing high-hydrogen-content silicone oil

Abstract

The utility model discloses a refining reaction device for preparing high-hydrogen-content silicone oil, which belongs to the technical field of fine chemical equipment and comprises a bottom plate, a reaction kettle is connected to one end of the top of the bottom plate, a rotating motor is connected to the top of the reaction kettle through screws, and a tail gas treatment device is fixed to the other end of the top of the bottom plate. The top of the tail gas treatment device is communicated with the reaction kettle through a connecting pipe, the tail gas treatment device comprises a condensation tank for condensation, circulating pipes which are annularly and uniformly arranged are embedded in the condensation tank, a hollow connecting plate is further welded to the side wall of each circulating pipe, and an adsorption tank is detachably connected to the top of the condensation tank; an annular plate convenient to fix is welded in the adsorption tank, the annular plate is connected with an adsorption plate through a bolt, and the adsorption plate is filled with activated carbon. According to the high-hydrogen-content silicone oil ozone treatment device, high-hydrogen-content silicone oil can be in full contact with ozone, waste gas can be treated through the arranged tail gas treatment device, air pollution is avoided, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of fine chemical equipment technology, and in particular to a refining reaction device for preparing high-hydrogen-content silicone oil. Background Technology

[0002] High-hydrogen-content silicone oil, scientifically known as polymethylaminosiloxane, is a colorless and transparent liquid belonging to organosilicon compounds. Existing equipment for preparing high-hydrogen-content silicone oil uses adsorbents to oxidize and reduce the silicone oil internally to achieve decolorization, but it cannot treat the waste gas generated during the preparation process, causing air pollution and thus having poor practicality.

[0003] A search revealed a Chinese patent document (authorization announcement number CN221433057U) for a refining reaction apparatus for preparing high-hydrogen-content silicone oil. The apparatus includes a primary refining vessel and a secondary refining vessel. An arched partition within the primary refining vessel divides its interior into an overflow chamber and a refining chamber. An overflow pipe is installed at the top center of the arched partition. A first stirrer is installed throughout both the overflow and refining chambers. An oil inlet pipe and an adsorbent pipe are located at the upper part of the refining chamber, and a slag discharge pipe is located at the bottom. A main oil discharge pipe is located at the upper part of the overflow chamber, and multiple branch oil discharge pipes are installed at equal intervals at the bottom of the main oil discharge pipe. Each branch oil discharge pipe is equipped with a filter, and its lower end connects to the top of the secondary refining vessel. This apparatus solves the problem of existing equipment being unable to continuously refine the product. However, it still has the problem of not being able to treat the generated exhaust gas, which, if directly emitted, would pollute the air and reduce the practicality of the apparatus. Utility Model Content

[0004] The purpose of this invention is to provide a refining reaction apparatus for preparing high-hydrogen-content silicone oil, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a refining reaction apparatus for preparing high-hydrogen-content silicone oil, comprising a base plate, a reaction vessel for preparing high-hydrogen-content silicone oil connected to one end of the top of the base plate, a rotary motor screwed to the top of the reaction vessel, and a tail gas treatment device for treating the tail gas produced from the high-hydrogen-content silicone oil fixed to the other end of the top of the base plate. The top of the tail gas treatment device is connected to the reaction vessel via a connecting pipe. The tail gas treatment device includes a condenser for condensation, with a uniformly arranged annular circulation pipe embedded inside the condenser. A hollow connecting plate is welded to the side wall of the circulation pipe. An adsorption tank is detachably connected to the top of the condenser. An annular plate for easy fixation is welded inside the adsorption tank. An adsorption plate is bolted to the annular plate, and activated carbon is filled inside the adsorption plate.

[0006] As a preferred embodiment, one side of the reactor is connected to the decolorization tank via a connecting fixed pipe, the bottom of the decolorization tank is fixed to the base plate, and the decolorization tank is located between the reactor and the exhaust gas treatment device.

[0007] As a preferred embodiment, a forward and reverse drive motor is embedded inside the base plate. The output shaft of the drive motor passes through the bottom of the decolorizing tank and is fixed to the end of the threaded rod. The other end of the threaded rod is rotatably connected to a conical baffle, and the side wall of the baffle is fixed to the inner wall of the decolorizing tank.

[0008] As a preferred embodiment, the threaded rod is threadedly connected to a movable plate, the side wall of the movable plate is slidably connected to the inner wall of the decolorizing tank, and the top of the decolorizing tank is connected to the connecting pipe through a straight pipe.

[0009] As a preferred embodiment, four symmetrical arc-shaped plates are welded to the bottom of the movable plate, and several through holes are provided between each pair of arc-shaped plates.

[0010] As a preferred embodiment, the side wall of the condenser is fixed with an inlet pipe for condensate input with a valve. The inlet pipe passes through the end of the condenser and connects to the end of the circulation pipe, and the other end of the circulation pipe is connected to the drain pipe that passes through the condenser.

[0011] As a preferred embodiment, the top of the condenser is provided with four symmetrical annular grooves, the inside of the grooves is provided with sealing rings, and there is an insertion hole between every two grooves, the inner wall of the insertion hole is slidably connected to the insertion rod.

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

[0013] This refining reaction apparatus for preparing high-hydrogen-content silicone oil utilizes a tail gas treatment device. With the aid of a condenser, the device removes some of the condensate mixed with air from the tail gas within a temperature range of 0–25 degrees Celsius. Combined with a discharge pipe, the liquid is further treated. Then, adsorption plates installed inside an adsorption tank, under the action of activated carbon, further adsorb the tail gas, reducing air-polluting elements and thus minimizing air pollution during the production of high-hydrogen-content silicone oil, thereby improving the practicality of the apparatus.

[0014] This refining reaction apparatus for preparing high-hydrogen-content silicone oil has a decolorization tank installed on the side wall of the reactor. The decolorization tank is connected to the reactor via a fixed pipe, allowing the generated silicone oil to be pumped into the decolorization tank. Under the action of ozone, the drive motor rotates, causing a moving plate to move inside the decolorization tank. The design of the arc-shaped plate and through holes allows the ozone to fully contact with the air, oxidizing the substances inside the silicone oil. The generated gas is then connected to a connecting pipe via a straight pipe for further treatment, further improving the practicality of the apparatus.

[0015] This device solves the problem that existing equipment cannot treat the exhaust gas generated during the production of high-hydrogen-content silicone oil, thus avoiding air pollution and improving the practicality of the device. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the refining reaction apparatus for preparing high-hydrogen-content silicone oil according to this invention;

[0018] Figure 2 This is a half-sectional schematic diagram of the decolorizing tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure connecting the bottom of the movable plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the exhaust gas treatment device of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the condenser of this utility model;

[0022] Figure 6 This is a schematic diagram of the adsorption tank of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] In the diagram: 1. Base plate; 2. Decolorization tank; 3. Tail gas treatment device; 31. Condensation tank; 32. Adsorption tank; 33. Drain pipe; 34. Water inlet pipe; 35. Groove; 36. Insert rod; 37. Adsorption plate; 38. Insertion hole; 4. Discharge pipe; 5. Exhaust pipe; 6. Connecting pipe; 7. Reactor; 8. Rotary motor; 9. Feed pipe; 10. Straight pipe; 11. Baffle; 12. Moving plate; 121. Arc plate; 122. Through hole; 13. Threaded rod; 14. Drive motor; 15. Connecting plate; 16. Circulation pipe. Detailed Implementation

[0025] 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.

[0026] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0027] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0028] A refining reaction apparatus for preparing high-hydrogen-content silicone oil, such as Figures 1 to 6 As shown, for ease of description, high-hydrogen-content silicone oil will be referred to simply as silicone oil.

[0029] include:

[0030] The bottom plate 1 is connected to a reactor 7 for preparing high hydrogen content silicone oil at one top end. A rotary motor 8 is screwed to the top of the reactor 7. By controlling the output shaft of the rotary motor 8 to rotate, the connected stirring paddle rotates inside the reactor 7, making the stirring more uniform and accelerating the production of silicone oil.

[0031] A feed pipe 9 for feeding raw materials is connected to the side wall of the reactor 7. A solenoid valve is provided on the outside of the feed pipe 9. The raw materials for production can be fed through the feed pipe 9. In conjunction with the internal structure of the reactor 7, the production of silicone oil can be completed.

[0032] The other end of the top of the base plate 1 is fixed with a tail gas treatment device 3 for treating the tail gas produced by high hydrogen content silicone oil. The top of the tail gas treatment device 3 is connected to the reactor 7 through a connecting pipe 6, so that the tail gas generated during the production of silicone oil can be directly transported to the interior of the tail gas treatment device 3. The tail gas can enter the bottom of the tail gas treatment device 3 through a round pipe set on one side of the tail gas treatment device 3.

[0033] The exhaust gas treatment device 3 includes:

[0034] The condenser tank 31 is used for condensation. The interior of the condenser tank 31 is embedded with a uniformly arranged annular circulation pipe 16. The side wall of the circulation pipe 16 is also welded with a hollow connecting plate 15. The connection between the connecting plate 15 and the circulation pipe 16 can increase the inlet and outlet area of ​​the exhaust gas, accelerate the condensation effect of the exhaust gas, and the connecting plate 15 has a spiral structure inside the condenser tank 31.

[0035] The adsorption tank 32 has an internal ring plate welded for easy fixation.

[0036] A drain pipe 33 is used for draining condensate, and the end of the drain pipe 33 is connected to the circulation pipe 16.

[0037] The inlet pipe 34 for condensate input penetrates the side wall of the condensate tank 31 and is fixed to the other end of the circulation pipe 16;

[0038] A groove 35 is provided to enhance sealing. A sealing ring for connection is placed on the inner wall of the groove 35. The groove 35 is connected to a crescent plate, and the end of the crescent plate is welded to the bottom of the adsorption tank 32.

[0039] Insert rod 36 is designed to facilitate the connection between adsorption tank 32 and condensation tank 31;

[0040] Adsorption plate 37 is fixed to the ring plate by bolts, and the interior of adsorption plate 37 is filled with activated carbon.

[0041] The socket 38 is located in the middle of the two grooves 35, and the socket 38 is slidably connected to the plug rod 36.

[0042] An exhaust pipe 5 is provided at the top of the adsorption tank 32. The exhaust pipe 5 is connected to a device for detecting exhaust gas. After the gas passes the test, it is discharged. A conduit is connected to the bottom of the condenser tank 31. The conduit is connected to the discharge pipe 4 located at the bottom of the base plate 1. The liquid generated by condensation can be discharged through the discharge pipe 4.

[0043] A decolorizing tank 2 is fixed in the middle of the top of the base plate 1. The decolorizing tank 2 is connected to the reaction vessel 7 through a fixed pipe. A pump body is installed on the side wall of the reaction vessel 7. The pump body can extract the produced silicone oil to facilitate processing inside the decolorizing tank 2.

[0044] The decolorizing tank 2 is connected to a straight pipe 10 at the top. The straight pipe 10 is connected to a sleeve set on the side wall of the connecting pipe 6, so that the straight pipe 10 is connected to the connecting pipe 6. The gas generated during the processing inside the decolorizing tank 2 is concentrated and transported to the inside of the tail gas treatment device 3 for treatment through the connecting pipe 6 and the round pipe connected to the connecting pipe 6. In order to prevent the tail gas from flowing back into the reactor 7, a one-way valve is installed inside the sleeve set at the connection between the straight pipe 10 and the connecting pipe 6. This can prevent the gas in the decolorizing tank 2 from being transported into the reactor 7 through the connecting pipe 6.

[0045] A drive motor 14 is installed inside the base plate 1. The output shaft of the drive motor 14 passes through the bottom of the decolorizing tank 2 and is connected to one end of the threaded rod 13. The other end of the threaded rod 13 is rotatably connected to the bottom of the baffle 11. The bottom of the baffle 11 is conical. The side wall of the baffle 11 is fixed to the inner wall of the decolorizing tank 2. Several through straight holes are provided on the surface of the baffle 11. The straight holes facilitate the airflow.

[0046] The threaded rod 13 is threadedly connected to a movable plate 12. Four symmetrical arc-shaped plates 121 are welded to the bottom of the movable plate 12. A through hole 122 is provided between every two arc-shaped plates 121, penetrating the movable plate 12. The through hole 122 is provided so that when the movable plate 12 moves inside the decolorization tank 2, the ozone input through the air inlet pipe can fully contact the silicone oil, accelerating the oxidation reaction inside the decolorization tank 2. In conjunction with the rotation of the drive motor 14, the connected threaded rod 13 is driven to rotate, causing the connected movable plate 12 to move spirally inside the decolorization tank 2, further accelerating the contact between the arc-shaped plates 121 and the silicone oil, which is beneficial to improving the reaction rate of the device.

[0047] The rotary motor 8 and drive motor 14 are both conventional instruments. Their working principles, dimensions, and models are irrelevant to the function of this application, so they will not be described in detail. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. In order to facilitate the inspection, maintenance, and parts replacement of the device, the parts inside a single device are usually from the same manufacturer and of the same model, function, and batch. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail in this utility model.

[0048] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology.

[0049] Working principle

[0050] The refining reaction apparatus for preparing high hydrogen content silicone oil first transports the raw materials for producing high hydrogen content silicone oil into the interior of the reaction vessel 7 through the feed pipe 9, controls the output shaft of the rotary motor 8 to rotate, drives the connected stirring paddle to rotate, and the reaction vessel 7 completes the production of silicone oil.

[0051] Then, after the silicone oil production is completed, the silicone oil inside the reactor 7 is pumped through the fixed pipe to the decolorization tank 2 by the pump body. The exhaust gas generated during the silicone oil production process is transported to the exhaust gas treatment device 3 through the connecting pipe 6. The output shaft of the drive motor 14 is controlled to rotate, which drives the connected moving plate 12 to move inside the decolorization tank 2. With the ozone transported by the gas supply pipe, the silicone oil inside the decolorization tank 2 is processed. The gas generated during the processing inside the decolorization tank 2 is then transported to the connecting pipe 6 through the straight pipe 10.

[0052] Furthermore, the inlet pipe 34 and the outlet pipe 33 are connected to the circulation pipe 16 inside the exhaust gas treatment device 3. Under the action of the round pipe connected to the connecting pipe 6, the exhaust gas entering the bottom of the exhaust gas treatment device 3 is connected to the connecting plate 15 and the circulation pipe 16. With the assistance of condensate, the low melting point substances in the exhaust gas are condensed, and the liquid is discharged through the connected outlet pipe 4.

[0053] Finally, the condensed exhaust gas enters the adsorption tank 32 connected to the condenser tank 31. The adsorption tank 32 is equipped with a removable adsorption plate 37 made of activated carbon, which further adsorbs the exhaust gas. The treated exhaust gas is then transported to the monitoring device through the exhaust pipe 5 set at the top of the adsorption tank 32.

[0054] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0055] 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 refining reaction apparatus for preparing high-hydrogen-content silicone oil, comprising a base plate (1), a reaction vessel (7) for preparing high-hydrogen-content silicone oil connected to one top end of the base plate (1), and a rotary motor (8) screwed to the top of the reaction vessel (7), characterized in that: The other end of the top of the base plate (1) is fixed with a tail gas treatment device (3) for treating the tail gas of the production of high hydrogen content silicone oil. The top of the tail gas treatment device (3) is connected to the reactor (7) through a connecting pipe (6). The tail gas treatment device (3) includes a condenser (31) for condensation. The condenser (31) is embedded with a ring-shaped and uniformly arranged circulation pipe (16). The side wall of the circulation pipe (16) is also welded with a hollow connecting plate (15). The top of the condenser (31) is detachably connected to an adsorption tank (32). The adsorption tank (32) is welded with a ring plate for easy fixation. The ring plate is connected to an adsorption plate (37) by bolts. The adsorption plate (37) is filled with activated carbon.

2. The refining reaction apparatus for preparing high-hydrogen-content silicone oil according to claim 1, characterized in that: One side of the reactor (7) is connected to the decolorizing tank (2) through a connecting fixed pipe. The bottom of the decolorizing tank (2) is fixed to the bottom plate (1), and the decolorizing tank (2) is located between the reactor (7) and the tail gas treatment device (3).

3. The refining reaction apparatus for preparing high-hydrogen-content silicone oil according to claim 2, characterized in that: The bottom plate (1) is equipped with a forward and reverse drive motor (14). The output shaft of the drive motor (14) passes through the bottom of the decolorizing tank (2) and is fixed to the end of the threaded rod (13). The other end of the threaded rod (13) is rotatably connected to a conical baffle (11). The side wall of the baffle (11) is fixed to the inner wall of the decolorizing tank (2).

4. The refining reaction apparatus for preparing high-hydrogen-content silicone oil according to claim 3, characterized in that: The threaded rod (13) is threadedly connected to a movable plate (12). The side wall of the movable plate (12) is slidably connected to the inner wall of the decolorizing tank (2), and the top of the decolorizing tank (2) is connected to the connecting pipe (6) through a straight pipe (10).

5. The refining reaction apparatus for preparing high-hydrogen-content silicone oil according to claim 4, characterized in that: The bottom of the movable plate (12) is welded with four symmetrical arc-shaped plates (121), and several through holes (122) are provided between each two arc-shaped plates (121).

6. The refining reaction apparatus for preparing high-hydrogen-content silicone oil according to claim 1, characterized in that: The side wall of the condenser (31) is fixed with an inlet pipe (34) for condensate input with a valve. The inlet pipe (34) passes through the end of the condenser (31) and is connected to the end of the circulation pipe (16). The other end of the circulation pipe (16) is connected to the drain pipe (33) that passes through the condenser (31).

7. The refining reaction apparatus for preparing high-hydrogen-content silicone oil according to claim 6, characterized in that: The top of the condenser (31) is provided with four symmetrical annular grooves (35), and the inside of the grooves (35) is provided with a sealing ring. There is a socket (38) between every two grooves (35), and the inner wall of the socket (38) is slidably connected to the plug rod (36).

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