Gas-phase white carbon black deacidification device

Abstract

The utility model provides a gas-phase white carbon black deacidification device. The gas-phase white carbon black deacidification device comprises a plurality of groups of baffles arranged in a reaction furnace in a staggered manner, the plurality of deacidification pipes are arranged in the reaction furnace; wherein the baffle plates comprise a first baffle plate and a second baffle plate, a plurality of first gas circulation holes are formed in the top of the first baffle plate, the first baffle plate is connected with the top of the reaction furnace at a certain angle, the second baffle plate is a baffle plate with a certain bending angle, and the first baffle plate and the second baffle plate are divided into a plurality of compartments; and the deacidification pipe is inserted into the compartment. According to the technical scheme, the multiple deacidification compartments and the baffles which are arranged in the staggered mode and provided with the bending angles are used, the energy consumption of the device is reduced, meanwhile, deacidification mixed gas makes full contact with fumed silica, and the deacidification efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of fumed silica deacidification, and particularly relates to a fumed silica deacidification device. Background Art

[0002] In the fields of chemical engineering and materials science, fumed silica, as an important inorganic material, is widely used in multiple industries such as rubber, plastics, coatings, inks, and cosmetics. However, during the production process of fumed silica, acidic gases are often generated. If these acidic gases are not treated, they may affect the quality and performance of the product. Therefore, it is particularly important to effectively deacidify fumed silica.

[0003] Existing fumed silica deacidification equipment all uses an electric heating method to heat the materials in the deacidification furnace to the required temperature, and then directly passes the mixed gas and steam into the deacidification equipment to contact the materials, wetting the surface of the fumed silica, so that the hydrogen chloride on the surface of the fumed silica is separated. Currently, in the traditional deacidification device during the deacidification process, the contact area and contact time between the deacidification gas and fumed silica in the furnace body are small, resulting in low deacidification efficiency and high energy consumption of the equipment. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a fumed silica deacidification device, which can improve the deacidification efficiency by optimizing the gas flow path and increasing the deacidification area, and at the same time achieve the effects of simple operation, low cost, and easy maintenance of the device.

[0005] To achieve the above purpose, this application provides a fumed silica deacidification device, including: several groups of baffles arranged alternately in the reaction furnace; several deacidification tubes arranged in the reaction furnace; wherein, the baffle includes a first baffle and a second baffle, several first gas circulation holes are arranged at the top of the first baffle, and the first baffle is connected to the top of the reaction furnace at a certain angle; the second baffle is a baffle with a certain bending angle, and the first baffle and the second baffle divide several compartments, and the deacidification tubes are inserted into the compartments.

[0006] To further improve the deacidification efficiency of the device, as an option of the fumed silica deacidification device of this application, a gas separation plate is arranged at the lower part of the reaction furnace, several second gas circulation holes are also arranged on the gas separation plate, and the second baffle is connected to the gas separation plate.

[0007] To further optimize the gas flow path and improve the deacidification efficiency, as an option of the fumed silica deacidification device of this application, the gas separation plate divides the reaction furnace into a deacidification chamber located in the upper part and a gas fluidization chamber located in the lower part.

[0008] To introduce the deacidification mixed gas, as an option for the deacidification device of fumed silica in this application, a deacidification mixed gas feed port is provided on the gas fluidization chamber.

[0009] To enable the deacidification mixed gas to be evenly released into each compartment, fully contact with the fumed silica and carry out the deacidification reaction, thereby improving the deacidification efficiency. As an option for the deacidification device of fumed silica in this application, the air inlet at one end of the deacidification pipe is connected to the deacidification mixed gas source, and a number of third gas flow holes are provided at the other end of the deacidification pipe.

[0010] To feed fumed silica into the reaction furnace and discharge the fumed silica after deacidification treatment. As an option for the deacidification device of fumed silica in this application, a feed port is provided on one side of the reaction furnace, and a discharge port is provided on the other side of the reaction furnace.

[0011] To discharge the acid gas generated during the deacidification process and ensure the efficiency of the reaction environment. As an option for the deacidification device of fumed silica in this application, an acid gas outlet is also provided on the other side of the reaction furnace, and the acid gas outlet is located at the top of the other side of the reaction furnace.

[0012] The beneficial effects of this application are as follows:

[0013] The fumed silica deacidification device provided by the technical solution of this application includes: a number of groups of baffles arranged alternately in the reaction furnace, and a number of deacidification pipes arranged in the reaction furnace; wherein, the baffles include a first baffle and a second baffle. A number of first gas flow holes are provided at the top of the first baffle, and the first baffle is connected to the top of the reaction furnace at a certain angle to form an inclined guiding surface. This design helps to guide the gas flow, achieves the effect of optimizing the gas flow path, and can achieve the effects of promoting uniform gas distribution, increasing the contact area between the gas and the fumed silica, and improving the deacidification efficiency; the second baffle is a baffle with a certain bending angle, and the first baffle and the second baffle divide a number of compartments. The deacidification pipes are inserted into the compartments. The first baffle and the second baffle cooperate with each other to divide the space in the reaction furnace into a number of compartments. After the deacidification pipes are inserted into the compartments, the deacidification mixed gas is evenly released into the compartments through the third gas flow holes, achieving the effect of full contact between the deacidification mixed gas and the fumed silica, and further improving the deacidification efficiency. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of a fumed silica deacidification device;

[0015] Figure 2 It is Figure 1 A schematic cross-sectional structure diagram along the A-A line;

[0016] Figure 3 It is a schematic cross-sectional structure diagram of a gas-phase fumed silica deacidification device;

[0017] Explanation of reference numerals:

[0018] 100, reaction furnace; 101, deacidification chamber; 102, gas fluidization chamber; 103, feed inlet; 104, discharge outlet;

[0019] 200, baffle; 201, first baffle; 2011, first gas flow hole; 202, second baffle;

[0020] 300, deacidification pipe; 301, air inlet; 302, third gas flow hole;

[0021] 400, compartment;

[0022] 500, gas separation plate; 501, second gas flow hole;

[0023] 600, deacidification mixed gas feed inlet;

[0024] 700, acid gas outlet. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above accompanying drawings are intended to cover non-exclusive inclusion.

[0027] Referring to "embodiments" herein means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0028] In the description of the embodiments of the present application, technical terms such as "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order or primary-secondary relationship of the indicated technical features. The term "several" means more than two (including two). Similarly, "several groups" means more than two groups (including two groups).

[0029] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "one side", "the other side", "one end", "the other end", "top", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the embodiments of the present application.

[0030] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "arrange", "be provided with", "install", "connect", "link", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0031] The inventors of the present application proposed a fumed silica deacidification device. Refer to Figures 1 - 3 , Figure 1 which is a schematic structural diagram of a fumed silica deacidification device provided by an embodiment of the present application, Figure 2 is provided by an embodiment of the present application Figure 1 a schematic cross-sectional structure diagram along line A-A, Figure 3 is a schematic cross-sectional structure diagram of a fumed silica deacidification device provided by an embodiment of the present application.

[0032] Refer to Figures 1 - 3 , a fumed silica deacidification device provided by the present application includes: several groups of baffles 200 arranged alternately in the reaction furnace 100, and several deacidification tubes 300 arranged in the reaction furnace 100. The air inlet 301 at one end of the deacidification tube 300 is connected to a deacidification mixed gas source, and several third gas flow holes 302 are provided at the other end of the deacidification tube 300.

[0033] Among them, the baffle plate 200 includes a first baffle plate 201 and a second baffle plate 202. A plurality of first gas flow holes 2011 are provided at the top of the first baffle plate 201, and the first baffle plate 201 is connected to the top of the reaction furnace 100 at a certain angle to form an inclined guiding surface. This design helps to guide the gas flow, achieving the effect of optimizing the gas flow path, and can promote uniform gas distribution, increase the contact area between the gas and the fumed silica in the gas phase, and improve the deacidification efficiency. The second baffle plate 202 is a baffle plate with a certain bending angle, and the first baffle plate 201 and the second baffle plate 202 divide a plurality of compartments 400. The deacidification tube 300 is inserted into the compartments 400. The first baffle plate 201 and the second baffle plate 202 cooperate with each other to divide the space in the reaction furnace 100 into a plurality of the compartments 400. After the deacidification tube 300 is inserted into the compartments 400, the deacidification tube 300 uniformly releases the deacidification mixed gas into the compartments 400 through the third gas flow holes 302, achieving the effect of sufficient contact between the deacidification mixed gas and the fumed silica in the gas phase, and further improving the deacidification efficiency.

[0034] Optionally, the first baffle plate 201 and the second baffle plate 202 can be fixedly connected by one of the methods such as screws, welding or flanges.

[0035] Continue to refer to Figures 1 - 3 In a further embodiment of the present application, a gas separation plate 500 is provided at the lower part of the reaction furnace 100. A plurality of second gas flow holes 501 are also provided on the gas separation plate 500, and the second baffle plate 202 is connected to the gas separation plate 500. The gas separation plate 500 divides the reaction furnace 100 into a deacidification chamber 101 located in the upper part and a gas fluidization chamber 102 located in the lower part. A deacidification mixed gas inlet 600 is provided on the gas fluidization chamber 102. This design enables the deacidification mixed gas to first enter the gas fluidization chamber 102 for preliminary dispersion and mixing, and then enter the deacidification chamber 101 through the second gas flow holes 501 for deacidification reaction, increasing the contact area between the deacidification mixed gas and the fumed silica in the gas phase and improving the deacidification efficiency.

[0036] Continue to refer to Figures 1 - 3, Further, a deacidification mixed gas is introduced into the reaction furnace 100 through the deacidification mixed gas inlet 600 and the air inlet 301 at one end of the deacidification pipe 300. The fumed silica enters the reaction furnace 100 through the feed inlet 103 provided on one side of the reaction furnace 100, and the fumed silica moves along the curved path of the compartments 400 formed by the staggered baffles 200 towards the discharge outlet 104 provided on the other side of the reaction furnace 100. The deacidification mixed gas entering the reaction furnace 100 through the deacidification pipe 300 is evenly dispersed to the bottom of the compartment 400 through the third gas flow hole 302 and moves towards the top of the compartment 400. The deacidification mixed gas introduced through the deacidification mixed gas inlet 600 is uniformly distributed in the gas fluidization chamber 102 for the first time, then enters the bottom of the deacidification chamber 101 through the second gas flow hole 501 and moves towards the top. When the deacidification mixed gas contacts and deacidifies the fumed silica, it enters the next adjacent compartment 400 through the first gas flow hole 2011 provided at the top of the first baffle 201, and moves towards the acid gas outlet 700 provided at the top of the other side of the reaction furnace 100 together with the deacidification mixed gas in this compartment 400, and is finally discharged. Since the fumed silica is an ultrafine powder and has good fluidity, and the mixed gas enters the deacidification chamber 101 through the second gas flow hole 501 to further improve the fluidity of the ultrafine powder, it promotes the fumed silica to move in a W-shaped route between the several compartments 400 formed by the first baffle 201 and the second baffle 202 until it is discharged from the discharge outlet 104 provided on the other side of the reaction furnace 100. It can be seen that the technical solution provided by this application has a simple structure, low cost, easy maintenance, low energy consumption of the device, and high deacidification efficiency.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fumed silica deacidification device, characterized in that: include: A plurality of groups of baffles (200) are staggeredly arranged in the reaction furnace (100); A plurality of deacidification tubes (300) arranged in the reaction furnace (100); The baffle (200) comprises a first baffle (201) and a second baffle (202); a plurality of first gas flow holes (2011) are arranged on the top of the first baffle (201); and the first baffle (201) is connected to the top of the reaction furnace (100) at a certain angle; The second baffle (202) is a baffle with a certain bending angle, and the first baffle (201) and the second baffle (202) separate a plurality of compartments (400), and the deacidification tube (300) is inserted into the compartment (400).

2. The fumed silica deacidification device according to claim 1, characterized in that: A gas separation plate (500) is provided at the lower part of the reaction furnace (100), a plurality of second gas flow holes (501) are also provided on the gas separation plate (500), and the second baffle (202) is connected to the gas separation plate (500).

3. The fumed silica deacidification device according to claim 2, characterized in that: The gas separation plate (500) divides the reaction furnace (100) into a deacidification chamber (101) located at the upper portion and a gas fluidization chamber (102) located at the lower portion.

4. The fumed silica deacidification device according to claim 3, characterized in that: The gas fluidization chamber (102) is provided with a deacidified mixed gas feed port (600).

5. The fumed silica deacidification device according to claim 1, characterized in that: The gas inlet (301) at one end of the deacidification tube (300) is connected to a deacidification mixed gas source, and the other end of the deacidification tube (300) is provided with a plurality of third gas flow holes (302).

6. The fumed silica deacidification device according to claim 1, characterized in that: A material inlet (103) is provided on one side of the reaction furnace (100), and a material outlet (104) is provided on the other side of the reaction furnace (100).

7. The fumed silica deacidification device according to claim 6, characterized in that: An acid gas outlet (700) is also provided on the other side of the reaction furnace (100), and the acid gas outlet (700) is located at the top of the other side of the reaction furnace (100).

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