Rotary reactor with airflow disturbance function

Abstract

The utility model discloses a rotary reactor with an airflow disturbance function, which comprises a rotary reactor body and a disturbance main pipeline, one end of the disturbance main pipeline is connected with an external air source, and the other end of the disturbance main pipeline extends into a reactor barrel body of the rotary reactor body. A disturbance branch pipeline for improving the material dispersion degree is connected and communicated with the disturbance main pipeline positioned in the reactor barrel body. Solid materials and high-temperature gas materials are fed into the rotary reactor barrel body through the feeding port, the solid materials drive the internal shoveling plates to rotate through rotation of the reactor barrel body, the raw materials are turned over and disturbed, meanwhile, gas introduced from the disturbance main pipeline is introduced into the reactor barrel body through the disturbance branch pipelines, the internal materials are blown away and disturbed, and the solid materials and the high-temperature gas materials are mixed. A gas field disturbance form is adopted to further disperse the solid raw materials, so that the gas-solid mass and heat transfer efficiency is improved, and the conversion rate of the reaction is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary reactors, and more particularly to a rotary reactor with an airflow disturbance function. Background Art

[0002] Rotating reactors are widely used in fields such as material preparation, catalytic reactions, cement production, water treatment, and photochemical reactions. They are an important type of chemical reaction equipment, offering the advantages of large processing capacity, continuous processing, and simple structure. Currently, rotating reactors are widely used in the production of positive and negative electrode materials for lithium batteries. In particular, the use of rotating reactors for the production of silicon-carbon anode materials using chemical vapor deposition of silane in porous carbon is an important development direction. This is because, compared to traditional fixed-bed or fluidized-bed reactors, rotating reactors offer both excellent mass and heat transfer while avoiding the problem of particle breakage caused by collisions between fluidized particles. Especially for the preparation of silicon-carbon anodes using vapor-phase chemical deposition, the use of rotating reactors allows the carbon material to remain in a disturbed state, allowing the cracked silicon radicals to be more effectively transferred into the pores of the porous carbon. However, the porous carbon support structure is relatively brittle and easily breaks down in a fluidized bed. The gentler disturbance of a rotating reactor avoids this problem.

[0003] See also Figure 1 The structure of the existing rotary reactor 1 is that solid material (which is a deposition carrier material, typically carbon material, porous silica, porous alumina, etc.) and high-temperature gas material (which is a deposition gas source, typically methane, ethylene, silane, etc.) are fed into the rotary reactor barrel 12 through the feed port 11. The solid material rotates through the reactor barrel 12, driving the internal lifting plate 13 to rotate, causing the raw material to tumble and disturb. In this way, the solid material reacts with the gas material in the rotary reactor. Subsequently, the solid material is discharged and falls into the product collection device 14. However, disturbing the raw materials only by the lifting plate 13 is subject to the characteristics of the rotary reactor itself. The degree of disturbance is weaker than that of the fluidized bed reactor, and the mass transfer and heat transfer effects are limited, which reduces the reactivity and thus reduces the reaction conversion efficiency. Moreover, in the process of disturbing the raw materials, there will be some dead corners, which make it impossible for the raw materials to be effectively disturbed. As a result, these raw materials cannot effectively exchange heat and mass with the raw gas, affecting the conversion rate. In addition, in order to improve the production capacity of a single reactor, the diameter of the rotary reactor is generally enlarged to accommodate more raw materials. However, the exponentially increased space causes limited heat transfer, resulting in a decrease in energy utilization, which poses new challenges to the heating method of the rotary reactor. To avoid this problem, it is often necessary to adopt additional complex and expensive heating methods such as internal heating, microwave heating, and plasma heating, which further limits the industrial application of the rotary reactor.

[0004] Therefore, how to provide a rotating reactor with airflow disturbance function that can avoid material accumulation, significantly improve material reaction conversion efficiency, and facilitate the enlargement of reactor size, thereby improving the production capacity of a single reactor is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of this, the utility model provides a rotating reactor with airflow disturbance function, which can avoid material accumulation, significantly improve material reaction conversion efficiency, and can be beneficial to enlarge the reactor size, thereby improving the production capacity of a single reactor.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A rotary reactor with an airflow disturbance function comprises: a rotary reactor body and a disturbance main line, wherein one end of the disturbance main line is connected to an external air source, and the other end extends into the interior of the reactor barrel of the rotary reactor body; the disturbance main line located inside the reactor barrel is connected and communicated with a disturbance branch line for improving the dispersion degree of the material.

[0008] It can be seen from the above technical solution that compared with the prior art, the utility model discloses a rotary reactor with an airflow disturbance function, in which solid materials (which are deposition carrier materials, typically carbon materials, porous silica, porous alumina, etc.) and high-temperature gas materials (which are deposition gas sources, typically methane, ethylene, silane, etc.) are put into the rotating reactor barrel through the feed port. The solid materials drive the internal lifting plate to rotate through the rotation of the reactor barrel, causing the raw materials to tumble and disturb. At the same time, the gas introduced into the disturbance main line is introduced into the reactor barrel through the disturbance branch line, blowing away and disturbing the internal materials, that is, the solid raw materials are further dispersed in the form of gas field disturbance, thereby improving the gas-solid mass transfer and heat transfer efficiency, thereby improving the reaction conversion rate.

[0009] Therefore, the rotary reactor introduces an external gas source into the reactor barrel to fully disturb the raw materials, so that the solid materials can be more fully in contact with the gas source materials, which can significantly improve the reaction conversion efficiency; moreover, the fully disturbed solid materials have a better heat exchange efficiency, which can improve the reaction conversion rate; in addition, the improved mass transfer and heat transfer efficiency can be conducive to enlarging the size of the reactor, thereby solving the problem that the size of traditional rotary reactors is difficult to enlarge; moreover, the disturbed airflow can blow away the materials in the dead zone of the lifting plate, which can avoid the accumulation of materials in the four corners.

[0010] According to the technical solution of the present invention, the blowing direction of the airflow of the disturbance branch pipe is perpendicular to the axial direction of the reactor barrel body, or the angle between the blowing direction of the airflow of the disturbance branch pipe and the axial direction of the reactor barrel body is within -10°~10°.

[0011] The beneficial effect of adopting the above technical solution is that the material can be fully blown away, so that the solid material and the gas material are fully in contact and heat transferred, thereby improving the conversion efficiency of the two.

[0012] According to the technical solution of the present invention, the disturbance branch pipeline is single or multiple.

[0013] According to the technical solution of the present utility model, the disturbance branch pipe is a straight pipe or an arc-shaped pipe.

[0014] The beneficial effect of adopting the above technical solution is that different arrangements of the disturbance pipeline can provide different internal dispersed gas distributions, thereby achieving different dispersion effects according to different requirements of the processed materials.

[0015] According to the technical solution of the present invention, a single or multiple outflow branch pipes are arranged on the disturbance branch pipe along the radial section direction of the reactor barrel.

[0016] The beneficial effect of adopting the above technical solution is that the disturbance branch pipe and the outflow branch pipe can blow air into the reactor barrel in multiple directions at the same time, further improving the dispersion effect of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of an existing rotary reactor provided by the utility model.

[0019] Figure 2 This is a schematic diagram of the longitudinal section of the reactor barrel.

[0020] Figure 3 This is a structural schematic diagram of a rotary reactor with airflow disturbance function provided by the utility model.

[0021] Figure 4 (a)-(j) are schematic diagrams of different structural forms of disturbance branch pipes. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model introduces a disturbance pipeline into the rotary reactor, thereby causing intermittent or continuous disturbance in the rotary reactor, so that the solid material can be sufficiently disturbed, avoiding the problem of insufficient disturbance of the solid material by the lifting plate in the traditional rotary reactor.

[0024] For details, see Figure 3-Figure 4 The present invention discloses a rotary reactor with an airflow disturbance function, comprising a rotary reactor body 1 and a main disturbance line 2. One end of the main disturbance line 2 is connected to an external air source, and the other end extends into the interior of the reactor barrel 12 of the rotary reactor body 1. A branch disturbance line 21 for improving material dispersion is connected to and communicates with the main disturbance line 2 within the reactor barrel 12. The other end of the main disturbance line 2 can extend into the interior of the reactor barrel 12 from the front, rear, or middle portion thereof.

[0025] Therefore, when the rotary reactor is rotating or stationary, the disturbance branch pipe 21 blows the disturbance gas (the disturbance gas can be an inert gas or the same gas as the deposition gas source) continuously or intermittently into the reactor, and the gas blows the internal material to disturb the solid material particles and increase the dispersion degree of the material.

[0026] The blowing direction of the airflow of the disturbance branch pipe 21 is perpendicular to the axial direction of the reactor barrel body 12, or the angle between the blowing direction of the airflow of the disturbance branch pipe 21 and the axial direction of the reactor barrel body 12 is within -10°~10°.

[0027] See also Figure 4 The disturbance branch pipeline 21 is single or multiple, and the disturbance branch pipeline 21 is a straight pipe or an arc pipe.

[0028] For example, the disturbance branch pipes 21 can be 1, 2, 4, 6 or 8 and are radially arranged on the disturbance main pipe 2. Different arrangements of the disturbance pipes can provide different internal dispersed gas distributions, thereby achieving different dispersion effects according to different requirements of the processed materials.

[0029] Of course, a single or multiple outflow branch pipes can be arranged on the disturbance branch pipe 21 along the radial section direction of the reactor barrel body 12, so as to increase the blowing directions of different gases and enhance the material disturbance effect.

[0030] The utility model is used to improve the reaction conversion rate of a rotary reactor. It uses a gas field disturbance to disperse the solid raw materials, improve the gas-solid mass transfer and heat transfer efficiency, and thus improve the conversion rate of the reaction. Moreover, it helps to promote the large-scale manufacture of rotary reactors. The disturbance of the gas field optimizes the mass transfer and heat transfer efficiency inside the reactor, so that larger reactors avoid the problem of decreased heat transfer efficiency. In addition, the rotary reactor can be used in many fields of production using rotary reactors, including but not limited to silane CVD deposition of porous carbon to produce silicon-carbon negative electrode technology, cement production, nano-carbon material preparation, etc.

[0031] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0032] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary reactor with airflow disturbance function, characterized in that: include: A rotating reactor body (1) and a disturbance main line (2), wherein one end of the disturbance main line (2) is connected to an external gas source, and the other end extends into the interior of a reactor barrel (12) of the rotating reactor body (1); a disturbance branch line (21) for improving the dispersion degree of the material is connected and communicated to the disturbance main line (2) located inside the reactor barrel (12); The angle between the blowing direction of the airflow of the disturbance branch pipe (21) and the axial direction of the reactor barrel (12) is within -10° to 10°; There are multiple disturbance branch pipes (21); The disturbance branch pipe (21) is an arc-shaped pipe; A plurality of outflow branch pipes are arranged on the disturbance branch pipe (21) along the radial section direction of the reactor barrel (12).

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