Fume-phase white carbon black main raw material feeding and mixing device

Abstract

The utility model provides a fumed silica main raw material feeding and mixing device. The fumed silica main raw material feeding and mixing device comprises a main flow pipe inflow pipeline, a main flow pipe reducing part, a main flow pipe throat part, a main flow pipe diffusion part and a main flow pipe outflow pipeline which are communicated in sequence, wherein a first circulation pipeline and a second circulation pipeline which are symmetrically distributed are arranged on the main flow pipe throat part. By adopting the technical scheme, the flow velocity of introduced gas can be effectively improved in the feeding process of the fumed silica main raw material, the mixing efficiency of the fumed silica main raw material can be further improved, and in addition, the maintainability of the device is also ensured by a flexible connection mode.

Description

Technical Field

[0001] The present application relates to the technical field of main raw material feeding of fumed silica, and in particular to a main raw material feeding and mixing device for fumed silica. Background Art

[0002] In the production process of fumed silica, the feeding and mixing of raw materials are key links to ensure product quality and production efficiency. The main raw materials of fumed silica need to go through multiple stages from initial inflow to final uniform mixing and outflow during the feeding process. In these stages, the flow rate, flow direction and mixing effect of the main raw materials directly affect the particle size distribution, purity and final performance of the product. Traditional devices often lack an effective mixing mechanism when the raw materials flow through the pipeline, resulting in uneven distribution of the raw materials in the pipeline, which in turn affects the stability of subsequent processing procedures and product quality.

[0003] Secondly, traditional feeding and mixing devices often have problems such as uneven mixing effect, high energy consumption, and complex equipment maintenance, which makes it difficult to meet the requirements of modern industrial production for high efficiency, precision, and reliability. Utility Model Content

[0004] The purpose of the utility model is to provide a device for feeding and mixing a main raw material of fumed silica, which can effectively increase the flow rate of the introduced gas during the feeding process of the main raw material of fumed silica, and can further improve the mixing efficiency of the main raw material of fumed silica, while also ensuring that the device has low cost, low energy consumption and easy maintenance.

[0005] In order to achieve the above-mentioned purpose, the present application provides a gas phase silica main raw material feeding and mixing device, comprising: a main flow pipe inlet pipe, a main flow pipe tapering portion, a main flow pipe throat, a main flow pipe diffuser portion and a main flow pipe outflow pipe connected in sequence; wherein, a first flow pipe and a second flow pipe are symmetrically distributed on the main flow pipe throat.

[0006] In order to further optimize the flow path during the feeding process of the main raw material of gas phase silica and enhance the mixing effect of the main raw material, as an option of the main raw material feeding and mixing device of the gas phase silica in the present application, several groups of baffles are also arranged in the main flow pipe outflow pipe, and the baffles include a first baffle and a second baffle, and the first baffle and the second baffle are staggered in the main flow pipe outflow pipe.

[0007] In order to extend the flow path of the main raw material of fumed silica during the feeding process and enable it to be fully mixed, as an option for the fumed silica main raw material feeding and mixing device of the present application, the first baffle is connected to the top of the outflow pipe of the main flow pipe at a certain angle, the second baffle is a baffle with a certain bending angle, and the second baffle is connected to the bottom of the outflow pipe of the main flow pipe. A flow channel is formed between the first baffle and the bottom of the outflow pipe of the main flow pipe, and a flow channel is formed between the second baffle and the top of the outflow pipe of the main flow pipe.

[0008] In order to further improve the mixing degree of the main raw material during the feeding process of the fumed silica main raw material, as an option for the fumed silica main raw material feeding and mixing device of the present application, a number of compartments are formed between several of the first baffles and several of the second baffles, and adjacent compartments are connected through flow channels located at the bottom of the first baffle or at the top of the second baffle.

[0009] In order to ensure the stability and easy maintenance of the device during the feeding process of the fumed silica main raw material, as an option for the fumed silica main raw material feeding and mixing device of the present application, the first flow pipe and the second flow pipe are connected to the throat of the main flow pipe by one of welding, screws or flanges.

[0010] In order to further ensure the stability and easy maintenance of the device during the feeding process of the fumed silica main raw material, as an option for the fumed silica main raw material feeding and mixing device of the present application, the first baffle and the second baffle are connected to the outflow pipe of the main flow pipe by one of welding, screws or flanges.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. The feeding and mixing device for the main raw material of fumed silica provided by the technical solution of the present application includes: a main flow pipe inflow pipeline, a main flow pipe tapering part, a main flow pipe throat part, a main flow pipe diffusing part, and a main flow pipe outflow pipeline that are connected in sequence. Among them, the main flow pipe inflow pipeline, as the main part for the main raw material to enter the device, is connected to the main flow pipe tapering part. The main flow pipe tapering part gradually narrows, achieving the effect of accelerating the flow rate of the main raw material of fumed silica. And the main flow pipe tapering part is connected to the main flow pipe throat part in sequence. At this time, the feeding pipeline of the main raw material of fumed silica reaches the smallest cross-section. The main flow pipe throat part is the part with the fastest flow rate of the feeding pipeline of the main raw material of fumed silica. At the same time, symmetrically distributed first flow pipelines and second flow pipelines are arranged on the main flow pipe throat part, which can be used to introduce other main raw materials of fumed silica for feeding to achieve the preliminary mixing of the main raw materials of fumed silica, enhancing the turbulence effect of the main flow pipe throat part, promoting strong disturbances between the main raw materials of fumed silica, and achieving the improvement of the mixing effect of the main raw materials of fumed silica during the feeding process. Further, the main flow pipe throat part is connected to the main flow pipe diffusing part in sequence. The main flow pipe diffusing part gradually expands, slowing down the flow rate, which helps the further mixing of the main raw materials.

[0013] 2. In the feeding and mixing device for the main raw material of fumed silica provided by the technical solution of the present application, several groups of baffles are further arranged in the main flow pipe outflow pipeline. The baffles include a first baffle and a second baffle. The first baffle and the second baffle are staggered in the main flow pipe outflow pipeline. And the first baffle is connected to the top of the main flow pipe outflow pipeline at a certain angle, forming an inclined guiding surface, which helps to guide the airflow, promotes uniform gas distribution, and achieves the effect of full contact between the main raw materials of fumed silica. The second baffle is a baffle with a certain bending angle and is connected to the bottom of the main flow pipe outflow pipeline. A flow channel is formed between the first baffle and the bottom of the main flow pipe outflow pipeline, and a flow channel is formed between the second baffle and the top of the main flow pipe outflow pipeline. The flow channels optimize the flow path of the main raw materials of fumed silica and further realize the full mixing of the main raw materials. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of a feeding and mixing device for the main raw material of fumed silica;

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

[0016] Figure 3 It is Figure 1 A schematic cross-sectional structural diagram along line B-B;

[0017] Description of the Reference Numerals:

[0018] 100. Mainstream pipe inlet pipe;

[0019] 200. Mainstream pipe tapered section;

[0020] 300. Mainstream pipe throat;

[0021] 400. Mainstream pipe diffuser section;

[0022] 500. Mainstream pipe outlet pipe;

[0023] 600. First flow pipe;

[0024] 700. Second flow pipe;

[0025] 800. Baffle; 801. First baffle; 802. Second baffle;

[0026] 900. Flow channel;

[0027] 1000. Compartment. Detailed implementation manner

[0028] 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0029] 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 drawings are intended to cover non-exclusive inclusion.

[0030] 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 at various positions 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.

[0031] In the description of the embodiments of the present application, technical terms such as "first" and "second" 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 two or more (including two). Similarly, "several groups" means two or more groups (including two groups).

[0032] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "top", "bottom", "inside", "symmetric", 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, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0033] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "set", "provided with", "installed", "connected", "connected", "fixed", 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 internal communication of 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.

[0034] The inventors of the present application have proposed a feeding and mixing device for the main raw material of fumed silica. Refer to Figures 1 - 3 , Figure 1 which is a schematic structural diagram of a feeding and mixing device for the main raw material of fumed silica provided by an embodiment of the present application; Figure 2 is provided by an embodiment of the present application Figure 1 a sectional structural diagram along line A-A; Figure 3 is provided by an embodiment of the present application Figure 1 a sectional structural diagram along line B-B.

[0035] Refer to Figures 1 - 3, the fumed silica main raw material feeding and mixing device provided by this application includes: a main flow pipe inflow pipeline 100, a main flow pipe tapered part 200, a main flow pipe throat part 300, a main flow pipe diffuser part 400, and a main flow pipe outflow pipeline 500 that are connected in sequence and communicate with each other. Optionally, the main flow pipe inflow pipeline 100, the main flow pipe tapered part 200, the main flow pipe throat part 300, the main flow pipe diffuser part 400, and the main flow pipe outflow pipeline 500 can be connected by one of the methods such as welding, screws, or flanges. Among them, the main flow pipe inflow pipeline 100, as the main part where the main raw material enters the device, is connected to the main flow pipe tapered part 200. The main flow pipe tapered part 200 gradually narrows, achieving the effect of accelerating the flow rate of the fumed silica main raw material. And the main flow pipe tapered part 200 is connected to the main flow pipe throat part 300 in sequence. At this time, the fumed silica main raw material feeding pipeline reaches the smallest cross-section. The main flow pipe throat part 300 is the part with the fastest flow rate of the fumed silica main raw material feeding pipeline. Further, symmetrically distributed first flow pipelines 600 and second flow pipelines 700 are arranged on the main flow pipe throat part 300, so that the turbulence effect of the main flow pipe throat part 300 is enhanced, prompting strong disturbances to occur between the fumed silica main raw materials, achieving the improvement of the mixing effect of the fumed silica main raw materials during the feeding process. Further, the main flow pipe throat part 300 is connected to the main flow pipe diffuser part 400 in sequence. The main flow pipe diffuser part 400 gradually expands, slowing down the flow rate, which helps the further mixing of the main raw materials. For example, air is introduced from the main flow pipe inflow pipeline 100, and hydrogen and silicon tetrachloride are respectively introduced from the first flow pipeline 600 and the second flow pipeline 700 for sufficient mixing.

[0036] Continue to refer to Figures 1 - 3, in a further embodiment of the present application, a number of groups of baffles 800 are further provided in the mainstream pipe outflow pipe 500. The baffle 800 includes a first baffle 801 and a second baffle 802. The first baffle 801 and the second baffle 802 are staggered in the mainstream pipe outflow pipe 500. The first baffle 801 is connected to the top of the mainstream pipe outflow pipe 500 at a certain angle to form an inclined guiding surface, which helps to guide the air flow, can promote uniform gas distribution, and achieve the effect of sufficient contact between the main raw materials of fumed silica. The second baffle 802 is a baffle with a certain bending angle, and the second baffle 802 is connected to the bottom of the mainstream pipe outflow pipe 500. A flow channel 900 is formed between the first baffle 801 and the bottom of the mainstream pipe outflow pipe 500. A flow channel 900 is formed between the second baffle 802 and the top of the mainstream pipe outflow pipe 500. And a number of compartments 1000 are formed between a number of the first baffles 801 and a number of the second baffles 802. Adjacent two compartments 1000 are connected through the flow channel 900 located at the bottom of the first baffle 801 or at the top of the second baffle 802, achieving the effect of optimizing the flow path of the main raw materials, so that the main raw materials of fumed silica can flow between the compartments 1000 and be fully mixed.

[0037] Optionally, the first flow pipe 600 and the second flow pipe 700 are connected to the mainstream pipe throat 300 by one of welding, screws or flanges. The first baffle 801 and the second baffle 802 are connected to the mainstream pipe outflow pipe 500 by one of welding, screws or flanges.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than 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 on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for mixing main raw material of fumed silica, characterized in that: include: A main flow pipe inflow pipe (100), a main flow pipe tapering portion (200), a main flow pipe throat portion (300), a main flow pipe diffuser portion (400) and a main flow pipe outflow pipe (500) which are connected in sequence; Wherein, a first circulation pipeline (600) and a second circulation pipeline (700) are symmetrically arranged on the throat portion (300) of the main flow pipe; A plurality of groups of baffles (800) are also arranged in the main flow pipe outflow pipe (500), wherein the baffles (800) include a first baffle (801) and a second baffle (802), and the first baffle (801) and the second baffle (802) are arranged alternately in the main flow pipe outflow pipe (500).

2. The main raw material feeding and mixing device of fumed silica according to claim 1, characterized in that: The first baffle (801) is connected to the top of the main flow pipe outflow pipe (500) at a certain angle, the second baffle (802) is a baffle with a certain bending angle, and the second baffle (802) is connected to the bottom of the main flow pipe outflow pipe (500), a flow channel (900) is formed between the first baffle (801) and the bottom of the main flow pipe outflow pipe (500), and a flow channel (900) is formed between the second baffle (802) and the top of the main flow pipe outflow pipe (500).

3. The main raw material feeding and mixing device of fumed silica according to claim 2, characterized in that: A plurality of compartments (1000) are formed between a plurality of the first baffles (801) and a plurality of the second baffles (802), and two adjacent compartments (1000) are connected via a flow channel (900) located at the bottom of the first baffle (801) or at the top of the second baffle (802).

4. The main raw material feeding and mixing device of fumed silica according to claim 1, characterized in that: The first circulation pipeline (600) and the second circulation pipeline (700) are connected to the main flow pipe throat (300) by welding, screws or flanges.

5. The main raw material feeding and mixing device of fumed silica according to claim 1, characterized in that: The first baffle (801) and the second baffle (802) are connected to the main flow pipe outflow pipe (500) by welding, screws or flanges.

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