A rotary mixing material device in a tubular furnace

Abstract

The present invention discloses a rotary material mixing device in a tubular furnace, comprising a rotary mixing part, a power part and a mounting part; the rotary mixing part is a closed space, and is composed of a filter screen, a rotating rod, a plurality of stirring blades and an edge baffle; one side of the plurality of stirring blades is respectively fixed on the rotating rod, and the opposite side of the stirring blades is connected to the edge baffle, and the filter screen is sleeved on the outer wall of the edge baffle with the rotating rod as the rotation center; the rotary mixing part is driven to rotate by the power part, and the rotary mixing part is mounted on the center of the cross section of the tubular furnace quartz tube through the mounting part. The present invention provides a rotary material mixing device in a tubular furnace, which does not require the entire quartz tube to rotate during use, and only requires an additional device to achieve full mixing of the materials, which is very necessary for mixing and full contact of materials in a fixed tubular furnace. Compared with existing devices, the present invention will make the thermochemical treatment effect of materials better.

Description

Technical Field

[0001] The invention relates to the technical field of experimental equipment, and in particular to a rotary material mixing device in a tube furnace. Background Art

[0002] When performing thermochemical treatment on materials in the quartz tube of a traditional tubular furnace, a quartz boat is generally used to hold the materials. During the thermochemical treatment, the materials on the surface of the quartz boat will be in full contact with the injected gas, while the materials in the lower layer of the quartz boat cannot be in full and effective contact with the gas, which in turn affects the heat treatment results. For the heat treatment of mixed materials, there are even more problems such as uneven and insufficient mixing. Patent CN215373524U proposes and designs a rotary tubular furnace that can control the mixing time and strength of materials in order to solve the problem that mixed materials in a tubular furnace under a closed heating state are sintered and difficult to mix. However, the entire quartz tube needs to rotate, which is obviously not possible for a tubular furnace with a fixed quartz tube. Summary of the invention

[0003] In view of this, the present invention discloses a rotary material mixing device in a tubular furnace to solve the problems of insufficient material mixing and incomplete heat treatment in a traditional tubular furnace.

[0004] The technical solution provided by the present invention is specifically, a rotary material mixing device in a tubular furnace, comprising a rotary mixing part, a power part and a mounting part; the rotary mixing part is a closed space, composed of a filter screen, a rotating rod, a plurality of stirring blades and an edge baffle; one side of the plurality of stirring blades is respectively fixed on the rotating rod, and the opposite side of the stirring blades is connected to the edge baffle, and the filter screen is sleeved on the outer wall of the edge baffle with the rotating rod as the rotation center; the rotary mixing part is driven to rotate by the power part, and the rotary mixing part is mounted at the center of the cross section of the quartz tube of the tubular furnace through the mounting part.

[0005] Preferably, the rotating power unit comprises a motor, an output shaft of the motor is connected to one end of a rotating rod, and the rotating rod is placed horizontally.

[0006] Preferably, the motor output shaft is a unidirectional stepped shaft.

[0007] Preferably, the mounting portion comprises a motor fixing bracket, and the motor fixing bracket fixes the motor on the outside of the flange of the quartz tube so that the motor is located at the center of the outer cross-section of the tubular furnace quartz tube.

[0008] Preferably, the rotating rod is a cylindrical solid rod structure, and a plurality of groove structures are correspondingly provided on the rotating rod, and one side of the stirring blade is inserted and fixed on the rotating rod through the groove structure.

[0009] Preferably, the stirring blades have a rectangular cross-section and there are six of them in total. The angles between adjacent stirring blades are all 60°, and a plurality of circular screening ports of different sizes are evenly distributed on the surface of the stirring blades.

[0010] Preferably, the circular screening port close to the inner part of the stirring blade is hole one, and the circular screening port located at the outer part of the stirring blade is hole two, and the aperture of hole one is smaller than the aperture of hole two.

[0011] Preferably, the edge baffle is arc-shaped.

[0012] Preferably, the filter screen is a high temperature resistant ceramic fiber filter screen with an applicable temperature range of 200°C-1200°C and an overall cylindrical shape.

[0013] Preferably, a fan-shaped material opening is provided on the filter screen surface opposite to the end of the power unit.

[0014] The present invention provides a rotating material mixing device in a tube furnace. When used, it is not necessary to rotate the entire quartz tube. Only an additional device is needed to achieve full mixing of materials. It is very necessary for mixing and full contact of materials in a fixed tube furnace. Compared with the existing device, the present invention can make the material thermochemical treatment effect better.

[0015] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

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

[0018] Figure 1 A schematic diagram of the application structure of a rotary material mixing device in a tube furnace provided in an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the overall structure of a rotary material mixing device in a tubular furnace provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of a partial three-dimensional structure of a rotary material mixing device in a tube furnace provided in an embodiment of the present invention;

[0021] Figure 4 A front view of a stirring blade in a rotary material mixing device in a tube furnace provided in an embodiment of the present invention;

[0022] Figure 5 A side view of a stirring blade in a rotary material mixing device in a tube furnace provided by an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of the structure of an arc-shaped edge baffle provided in an embodiment disclosed in the present invention;

[0024] Figure 7 A front view of the filter provided in the disclosed embodiment of the present invention. DETAILED DESCRIPTION

[0025] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Instead, they are merely examples of systems consistent with some aspects of the present invention as detailed in the appended claims.

[0026] Normally, when the materials are thermochemically treated in the quartz tube of a tubular furnace, only the surface of the materials placed in the quartz boat is in contact with the gas, and the materials in the lower layer of the quartz boat cannot be directly and fully contacted with the gas. In addition, the surface area of ​​the materials laid flat in the quartz boat will be slightly different each time, which will lead to errors in the thermochemical treatment results of the materials. For the traditional tubular furnace quartz tube, there are problems such as uneven mixing and insufficient mixing for material mixing heat treatment, such as Figure 1-7 The present embodiment provides a rotary material mixing device in a tubular furnace, comprising a rotary mixing part, a power part and a mounting part; the rotary mixing part is a closed space, and is composed of a filter screen 2, a rotating rod 3, a plurality of stirring blades 4 and an edge baffle 8; one side of the plurality of stirring blades 4 is respectively fixed on the rotating rod 3, and the opposite side of the stirring blades 4 is connected to the edge baffle 8, and the filter screen 2 is sleeved on the outer wall of the edge baffle 8 with the rotating rod 3 as the rotation center, that is, the rotating rod 3, the stirring blades 4 and the edge baffle 8 are combined and wrapped and closed by the filter screen 2 to form a closed space for placing materials;

[0027] The rotating mixing part is driven to rotate by the power part, and is installed at the center of the cross section of the tubular furnace quartz tube 9 through the installation part, and its size is slightly smaller than the inner diameter of the quartz tube 9.

[0028] Specifically, the rotary power unit includes a motor 1, a motor output shaft 5 connected to one end of a rotating rod 3, wherein the rotating rod 3 is placed horizontally; the motor 1 drives the rotating rod 3 to rotate through the motor output shaft 5, so that the stirring blade 4 rotates;

[0029] The motor output shaft 5 is a one-way stepped shaft, so that the motor and the rotating rod can be installed conveniently and securely. The motor output shaft will pass through the flange 10 installed on the quartz tube of the tubular furnace, connecting the rotating device in the quartz tube with the motor outside the quartz tube to form a complete rotating material mixing device.

[0030] The above-mentioned installation part includes a motor fixing bracket 6, which fixes the motor 1 on the outside of the flange 10 of the quartz tube 9, so that the motor 1 is located at the center of the outer cross-section of the tubular furnace quartz tube, and the rotating material mixing device is placed in the quartz tube to reduce the friction of the device on the quartz tube wall.

[0031] The rotating rod 3 is a cylindrical solid rod structure, and a plurality of groove structures are correspondingly provided on the rotating rod 3. One side of the stirring blade 4 is inserted and fixed on the rotating rod 3 through the groove structure. This structure facilitates the installation of the stirring blade.

[0032] The stirring blades 4 are preferably rectangular in cross section, with six blades in total. The angles between adjacent stirring blades 4 are all 60°. A plurality of circular screening ports 7 of different sizes are evenly distributed on the surface of the stirring blades 4 to facilitate full mixing of the materials.

[0033] The motor 1 drives the rotating rod 3 to rotate through the motor output shaft 5, so that the stirring blade 4 rotates, and the material enters the next stirring blade through the screening port 7, and the reciprocating motion is carried out in this way, so that the material and the gas can be mixed and contacted more fully.

[0034] The circular screening port near the inner side of the stirring blade 4 is hole one, and the circular screening port located at the outer side of the stirring blade 4 is hole two. The aperture of hole one is smaller than that of hole two.

[0035] The edge baffle 8 is in an arc shape to prevent the material from falling off the edge of the blade.

[0036] The filter 2 is a high temperature resistant ceramic fiber filter. During the process of injecting gas to heat treat the material, it can facilitate the smooth passage of gas and prevent the material from splashing in the pipeline due to excessive gas flow, so as to reduce experimental errors. Its applicable temperature range is 200℃-1200℃, and its overall shape is cylindrical.

[0037] The filter screen 2 surface opposite to the power unit end is provided with a fan-shaped material opening 12. The fan-shaped material opening 12 makes the structure convenient for taking and placing materials, and the fan-shaped material opening needs to be sealed during the thermochemical treatment process of the materials.

[0038] In the process of thermochemical treatment of various materials in a tube furnace, the full contact between the materials and the gas and the uniform mixing degree of the various materials are very important to the result. The device of the present invention can not only mix the various materials uniformly, but also make the materials and the gas contact more fully.

[0039] This embodiment solves the problems of insufficient thermochemical treatment of materials and uneven mixing of multiple materials. The motor drives the rotating rod and the stirring blade to rotate, so that the material and the gas can be fully contacted, and the multiple materials can be evenly mixed during the rotation of the blade. In addition, when the gas flow rate increases, the fine particles in the material will fly up to a certain extent during the rotation of the blade. The filter screen and other structures set by the device of the present invention can also prevent material loss.

[0040] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

Claims

1. A rotary material mixing device in a tubular furnace, characterized in that: The invention comprises a rotating mixing part, a power part and a mounting part; the rotating mixing part is a closed space, and is composed of a filter screen (2), a rotating rod (3), a plurality of stirring blades (4) and an edge baffle (8); one side of the plurality of stirring blades (4) is respectively fixed on the rotating rod (3), and the opposite side of the stirring blades (4) is connected to the edge baffle (8); the filter screen (2) is sleeved on the outer wall of the edge baffle (8) with the rotating rod (3) as the rotation center; the rotating mixing part is driven to rotate by the power part, and the rotating mixing part is mounted on the center of the cross section of the tubular furnace quartz tube (9) through the mounting part; The stirring blades (4) have a rectangular cross section and there are six of them in total. The angles between adjacent stirring blades (4) are all 60°. A plurality of circular screening ports (7) of different sizes are evenly distributed on the surface of the stirring blades (4); The circular screening opening close to the inner side of the stirring blade (4) is hole one, and the circular screening opening located at the outer side of the stirring blade (4) is hole two. The aperture of hole one is smaller than the aperture of hole two. The edge baffle (8) is in an arc shape; The filter screen (2) is a high temperature resistant ceramic fiber filter screen, which is suitable for a temperature range of 200° C. to 1200° C. and has a cylindrical overall shape; A fan-shaped material opening (12) is provided on the surface of the filter screen (2) opposite to the end of the power unit.

2. The rotary material mixing device in a tube furnace according to claim 1, characterized in that: The power unit comprises a motor (1), wherein a motor output shaft (5) is connected to one end of a rotating rod (3), wherein the rotating rod (3) is placed horizontally.

3. The rotary material mixing device in a tube furnace according to claim 2, characterized in that: The motor output shaft (5) is a one-way stepped shaft.

4. The rotary material mixing device in a tube furnace according to claim 1, characterized in that: The mounting portion comprises a motor fixing bracket (6), and the motor fixing bracket (6) fixes the motor (1) on the outside of the flange (10) of the quartz tube (9), so that the motor (1) is located at the center of the outer cross section of the tubular furnace quartz tube.

5. The rotary material mixing device in a tube furnace according to claim 1, characterized in that: The rotating rod (3) is a cylindrical solid rod structure, and a plurality of groove structures are correspondingly provided on the rotating rod (3). One side of the stirring blade (4) is inserted and fixed on the rotating rod (3) through the groove structure.

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