Furnace core tube capable of uniformly turning over materials

Abstract

The utility model relates to the field of furnace core tubes of rotary kilns, in particular to a furnace core tube capable of uniformly turning materials, which comprises a tube body and a plurality of groups of material turning components, the multiple sets of material overturning assemblies are circumferentially arranged and distributed at equal intervals along the inner wall of the pipe body, and any two adjacent sets of material overturning assemblies are distributed at intervals at an included angle A1. The material turning assembly comprises a plurality of material turning units which are arranged and distributed in the length direction of the pipe body at intervals. According to the utility model, through the material overturning assembly and the guide assembly, the material overturning function of the treated material in the furnace core tube is realized, and the yield of the finished material is improved.

Description

Technical Field

[0001] The utility model relates to the field of rotary kiln core tubes, in particular to a core tube with uniform material turning. Background Art

[0002] A rotary kiln is a common industrial equipment. Through the rotational movement of the core tube, materials experience different reaction sections inside the kiln barrel, so as to achieve the purpose of heat treatment or chemical reaction. At present, the inner wall of the rotary kiln core tube is smooth. In the case of no material turning component, it can meet most application scenarios, such as general atmosphere protection kilns. As long as nitrogen or other inert gases are filled into the core tube for protection, the processing materials inside the tube can roll and decompose by heat along with the inclined furnace tube, and finally produce finished materials. However, in another production situation, when the processing materials are decomposed by heat inside the core tube, a large amount of reaction atmosphere (such as oxygen) is required. If there is no material turning component inside the core tube, the processing materials are very easy to accumulate at the bottom of the core tube, unable to fully contact with the introduced atmosphere, resulting in overburning of the upper layer of the processing materials and underburning of the lower layer, seriously affecting the output rate of the finished materials. Content of the Utility Model

[0003] Aiming at the problems raised in the background art, the purpose of the utility model is to provide a core tube with uniform material turning, so as to solve the problem of low output rate of finished materials caused by uneven material turning of the core tube.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A core tube with uniform material turning, comprising a tube body and several groups of material turning components;

[0006] Several groups of the material turning components are arranged circumferentially at equal intervals along the inner wall of the tube body, and any two adjacent groups of the material turning components are spaced apart from each other at an angle A1;

[0007] The material turning component comprises several material turning units, and several of the material turning units are respectively arranged at intervals along the length direction of the tube body.

[0008] Preferably, all the material turning units of any two adjacent groups of the material turning components are staggeredly distributed.

[0009] Preferably, there is an installation interval between two material turning units which are staggeredly distributed in two adjacent groups of the material turning components, and the installation interval is used to avoid the air guiding air pipe.

[0010] A core tube with uniform material turning further comprises a guiding component, and the guiding component is arranged on the inner wall of the tube body;

[0011] The guiding assembly and several groups of the material turning assemblies are arranged circumferentially at equal intervals along the inner wall of the pipe body, and the included angle between the guiding assembly and the adjacent material turning assembly is equal to the included angle between any two adjacent material turning assemblies;

[0012] The guiding assembly is composed of several guiding plates arranged along the length direction of the pipe body. The guiding plates are straight plates, and an inclined included angle is formed between the plate surface of the guiding plate and the center line of the pipe body, and the inclined included angle > 0°.

[0013] Preferably, the included angle between two adjacent groups of the material turning assemblies is 60° or 90°.

[0014] Preferably, the structure of the material turning unit is a straight plate, an L-shaped plate or a curved-side triangular prism.

[0015] Preferably, the structure of the material turning unit is an L-shaped plate, the fold angle of the L-shaped plate faces the center of the inside of the pipe body, and several fold angles of the L-shaped plates form several C-shaped grooves with the inner wall of the pipe body, and the notch directions of the several C-shaped grooves are uniformly arranged.

[0016] Preferably, the structure of the material turning unit is a curved-side triangular prism, one side of the curved-side triangular prism is a curved surface, the curved surface coincides with the inner wall of the pipe body, and the edge corresponding to the side is parallel to the center line inside the pipe body.

[0017] Preferably, the included angle between the guiding assembly and the nearest material turning assembly is 90° with the included angle between any two adjacent material turning assemblies, and the structure of the material turning unit is a straight plate.

[0018] Preferably, the included angle between the guiding assembly and the center line of the pipe body is 5°.

[0019] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0020] In the present utility model, the material turning assembly arranged inside the furnace core pipe turns the processing material accumulated at the bottom of the furnace core pipe, so that the processing material is in full contact with the atmosphere inside the furnace core pipe, thereby improving the output rate of the finished material; the guiding assembly arranged inside the furnace core pipe provides a guiding path for the processing material with poor fluidity, avoiding the instability of the equipment caused by too large an inclination angle of the furnace core pipe. At the same time, the stepped structure formed by the guiding assembly has a gentle slope, which can extend the residence time of the processing material in the furnace core pipe, so that the processing material can be heated and decomposed more fully. Description of the Drawings

[0021] Figure 1 is the schematic diagram of the main view sectional structure of the first embodiment of the present utility model;

[0022] Figure 2 is a top-down sectional structural schematic diagram of the first embodiment of the present utility model;

[0023] Figure 3 is a side-sectional structural schematic diagram of the first embodiment of the present utility model;

[0024] Figure 4 is a partial enlarged view of the installation area D of the first embodiment of the present utility model;

[0025] Figure 5 is a top-down sectional structural schematic diagram of the second embodiment of the present utility model;

[0026] Figure 6 is a side-sectional structural schematic diagram of the second embodiment of the present utility model;

[0027] Figure 7 is a partial enlarged view of the installation area D of the second embodiment of the present utility model;

[0028] Figure 8 is a top-down sectional structural schematic diagram of the third embodiment of the present utility model;

[0029] Figure 9 is a side-sectional structural schematic diagram of the third embodiment of the present utility model;

[0030] Figure 10 is a partial enlarged view of the installation area D of the third embodiment of the present utility model;

[0031] Figure 11 is a side-sectional structural schematic diagram of the fourth embodiment of the present utility model;

[0032] Figure 12 is a top-down sectional structural schematic diagram of the fourth embodiment of the present utility model;

[0033] Figure 13 is a side-sectional structural schematic diagram of the fourth embodiment of the present utility model;

[0034] Figure 14 is a partial enlarged cutaway view of the installation area D of the fourth embodiment of the present utility model;

[0035] Figure 15 is a partial enlarged view of the included angle B of the fourth embodiment of the present utility model.

[0036] Wherein: pipe body 1, material turning assembly 21, straight plate 211A, L-shaped plate 211B, curved-side triangular prism 211C, guiding assembly 31, straight plate 311, included angle A1 between adjacent two groups of material turning assemblies, included angle A2 between the guiding assembly and the nearest material turning assembly, included angle B between the guiding assembly and the center line of the pipe body, and installation interval D. Specific embodiments

[0037] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0039] In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", and "third" may explicitly or implicitly include one or more of such features.

[0040] It should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0041] The following combines the attached Figures 1 to 4 And further illustrates the technical solutions of the first embodiment of a furnace core pipe with uniform material turning of the present invention through specific embodiments.

[0042] A furnace core pipe with uniform material turning, such as Figures 1 to 3As shown, it includes a pipe body 1 and several groups of material turning components 21; several groups of the material turning components 21 are arranged circumferentially at equal intervals along the inner wall of the pipe body 1, and any two adjacent groups of the material turning components 21 are spaced apart from each other at an angle A1; the material turning component 21 includes several material turning units, and several of the material turning units are respectively arranged at intervals along the length direction of the pipe body 1;

[0043] Specifically, as Figures 1 to 3 shown, when the material turning unit comes to the bottom of the core pipe due to the rotation of the core pipe, the material turning unit will lift the processing material accumulated at the bottom of the core pipe to a high place, and the processing material will slide down along the material turning unit due to gravity; during this period, the processing material is further in contact with the high-temperature atmosphere in the core pipe, which can ensure that the processing material can be heated and decomposed fully and evenly, and solves the problem of low output rate of the finished material caused by uneven material turning in the core pipe.

[0044] On this basis, all the material turning units of any two adjacent groups of the material turning components 21 are staggeredly distributed; there is an installation interval D left between two material turning units that are staggeredly distributed in two adjacent groups of the material turning components, and the installation interval D is used to avoid the air guiding air pipe;

[0045] Specifically, as Figure 4 shown, the design that all the material turning units of any two adjacent groups of the material turning components 21 are staggeredly distributed is to ensure that the density of the welding points in the core pipe will not be too high, so as to avoid the problem of deformation of the core pipe; two material turning units that are staggeredly distributed in two adjacent groups of the material turning components 21 are respectively staggered to form an installation interval D, and the installation interval D can be used as an avoidance area for the air guiding air pipe, so that the air outlet end of the air guiding air pipe can be close to the inner wall of the core pipe, making the gas contact the processing material more fully and making the consistency of the finished material higher.

[0046] Further explanation, the included angle A1 between two adjacent groups of the material turning components 21 is 60° or 90°; the structure of the material turning unit is a straight plate 211A, an L-shaped plate 211B or a curved-side triangular prism 211C.

[0047] Specifically, as Figures 2 to 4As shown, any two adjacent material turning components 21 do not overlap and have the same angular difference between each other. The included angle A1 is 60° or 90°. The design of separating any two adjacent material turning components 21 in this way is to reduce the risk of deformation of the core tube, and at the same time, the processed materials can be mixed with each other during tumbling, which helps to improve the consistency of the quality of the finished materials. When the guiding component 31 does not exist, the size of the included angle A1 between two adjacent material turning components 21 will determine the density of the solder joints in the core tube. If the included angle A1 is too small, the density of the solder joints in the core tube is too high, and the core tube will face the problem of deformation. If the included angle A1 is too large, the density of the solder joints in the core tube is too low, and the processed materials cannot obtain the due material turning effect. When ensuring that the core tube will not be deformed, when the included angle between two adjacent material turning components 21 is 60°, the processed materials can obtain a relatively good material turning effect. At the same time, there are three structures of the material turning unit, and different structures will bring different material turning effects. The straight plate 211A is the simplest in the structure of the material turning unit, which can complete the material turning operation of general processed materials and has a relatively low manufacturing cost.

[0048] The structure of the second embodiment is basically the same as that of the first embodiment. The following will further illustrate the technical solution of the second embodiment of a core tube with uniform material turning of the present invention in conjunction with the attached Figures 5 to 7 And through specific embodiments. In the second embodiment, the structure of the material turning unit is an L-shaped plate 211B. The folding angle of the L-shaped plate 211B faces the center inside the tube body 1. The folding angles of several L-shaped plates 211B and the inner wall of the tube body 1 form several C-shaped grooves, and the notch directions of several C-shaped grooves are uniformly arranged.

[0049] Specifically, as Figures 5 to 6 shown, the processed materials can be lifted to a higher height by the L-shaped plate 211B before material turning. While the material turning is more thorough, it also increases the contact time between the processed materials and the atmosphere inside the core tube, making the quality of the finished materials higher. The notch directions of several C-shaped grooves are uniformly arranged. During the actual operation process, the notch direction can be opposite to the advancing direction of the rotation of the aluminum core tube, so that when the aluminum core tube rotates, the materials can achieve local material turning in the C-shaped grooves.

[0050] The structure of the third embodiment is basically the same as that of the first embodiment. The following will further illustrate in conjunction with the attached Figures 8 to 10The technical solution of the third embodiment of the furnace core tube with uniform material turning of the present utility model will be further described through specific embodiments. In the third embodiment, the structure of the material turning unit is a curved-side triangular prism 211C, one side of the curved-side triangular prism 211C is a curved surface, the curved surface coincides with the inner wall of the tube body 1, and the edge corresponding to the side is parallel to the center line inside the tube body 1.

[0051] Specifically, as Figures 7 to 8 shown, the material to be processed can be turned when the curved-side triangular prism 211C is lifted to a relatively low height. Since the lifting height is relatively low, the dust generated by turning the material is relatively less.

[0052] The structure of the fourth embodiment is basically the same as that of the first embodiment. The following will be combined with the attached Figures 11 to 15 The technical solution of the fourth embodiment of the furnace core tube with uniform material turning of the present utility model will be further described through specific embodiments. In the fourth embodiment, a guiding assembly 31 is further included, and the guiding assembly 31 is arranged on the inner wall of the tube body 1; the guiding assembly 31 and several groups of the material turning assemblies 21 are arranged circumferentially at equal intervals along the inner wall of the tube body 1, and the included angle A2 between the guiding assembly 31 and the adjacent material turning assembly 21 is equal to the included angle A1 between any two adjacent material turning assemblies 21; the guiding assembly 31 is composed of several guiding plates arranged along the length direction of the tube body 1, the guiding plates are straight plates 311, and an inclined included angle B is formed between the plate surface of the guiding plate and the center line of the tube body 1, and the inclined included angle B > 0°.

[0053] Specifically, as Figures 11 to 13 shown, for the material to be processed with poor fluidity, the past practice was to increase the inclination angle of the furnace core tube to improve the fluidity of the material to be processed. However, such a practice would cause the equipment to be unstable due to the too large inclination angle of the furnace core tube, seriously affecting the quality of the finished material; at the same time, the material to be processed with poor fluidity passed through the furnace core tube too quickly, without contacting the atmosphere inside the furnace core tube and without being fully heated and decomposed; therefore, an inclined included angle B is formed between the plate surface of the guiding plate and the center line of the tube body 1. Through the similar stepped structure formed by several guiding assemblies 31, a guiding path can be provided for the material to be processed with poor fluidity, and the fluidity of the material to be processed can be improved without increasing the inclination angle of the furnace core tube; at the same time, the guiding path provided by the stepped structure is relatively gentle, which can further extend the residence time of the material to be processed in the furnace core tube, so that the material to be processed has a longer contact time with the atmosphere inside the furnace core tube and is more fully heated and decomposed.

[0054] Further explanation, the included angle A2 between the guiding component 31 and the nearest turning component 21 and the included angle A1 between any two adjacent turning components 21 are both 90°, and the structure of the turning unit is a straight plate 211A.

[0055] Specifically, as Figure 13 shown, the existence of the guiding component 31 can not only provide a guiding path for the processing material with poor fluidity, but also enable the turning component 21 to turn the processing material at the same time; however, due to the existence of the guiding component 31, the density of the welding points on the inner wall of the furnace core tube is high, and the furnace core tube will face the problem of deformation; when the included angle A2 between the guiding component 31 and the nearest turning component 21 and the included angle A1 between any two adjacent turning components 21 are both 90° while ensuring that the furnace core tube will not deform, the processing material can obtain relatively good guiding and turning effects.

[0056] Further explanation, the included angle B between the guiding component 31 and the center line of the pipe body 1 is 5°.

[0057] Specifically, as Figure 15 shown, the included angle B between the guiding component 31 and the center line of the furnace core tube will affect the traveling speed of the processing material in the furnace core tube. If the angle B is too large, the fluidity of the processing material will decrease, but the heating and decomposition time of the processing material will increase, and there will be a problem of overburning of the finished product; if the angle B is too small, the fluidity of the processing material will increase, but the heating and decomposition time of the processing material will decrease, and there will be a problem that the finished product is not completely burned through; when the included angle between the guiding component 31 and the center line of the furnace core tube is 5°, the best effect of the finished product is achieved.

[0058] The technical principle of the present invention has been described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be construed in any way as a limitation on the protection scope of the present invention. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative labor, and these embodiments will fall within the protection scope of the present invention.

Claims

1. A core tube with uniform material turning, characterized in that: It includes a pipe body (1) and several groups of material turning components (21); Several groups of the material turning components (21) are arranged and distributed equidistantly and circumferentially along the inner wall of the pipe body (1), and any two adjacent groups of the material turning components (21) are spaced apart at an angle A1; The material turning component (21) includes several material turning units, and several of the material turning units are respectively arranged and distributed at intervals along the length direction of the pipe body (1).

2. The core tube with uniform material turning according to claim 1, characterized in that: All the material turning units of any two adjacent groups of the material turning components (21) are staggeredly distributed.

3. The core tube with uniform material turning according to claim 2, characterized in that: There is an installation interval D left between two material turning units that are staggeredly distributed within two adjacent groups of the material turning components, and the installation interval is used to avoid the air guiding air pipe.

4. A core tube with uniform material turning as claimed in claim 1, wherein: It further includes a guiding component (31), and the guiding component (31) is arranged on the inner wall of the pipe body (1); The guiding component (31) and several groups of the material turning components (21) are arranged and distributed equidistantly and circumferentially along the inner wall of the pipe body (1), and the angle A2 between the guiding component (31) and the adjacent material turning component (21) is equal to the angle A1 between any two adjacent material turning components (21); The guiding component (31) is composed of several guiding plates arranged along the length direction of the pipe body (1), the guiding plates are straight plates (311), and an inclined angle B is formed between the plate surface of the guiding plate and the center line of the pipe body (1), and the inclined angle B > 0°.

5. A core tube with uniform material turning according to claim 1, characterized in that: The angle A1 between two adjacent groups of the material turning components (21) is 60° or 90°.

6. The core tube with uniform material turning according to claim 5, characterized in that: The structure of the material turning unit is a straight plate (211A), an L-shaped plate (211B), or a curved-side triangular prism (211C).

7. A core tube with uniform material turning according to claim 6, characterized in that: The structure of the material turning unit is an L-shaped plate (211B), the fold angle of the L-shaped plate (211B) faces the center of the interior of the pipe body (1), and several fold angles of several of the L-shaped plates (211B) form several C-shaped grooves with the inner wall of the pipe body (1), and the notch directions of several of the C-shaped grooves are uniformly set.

8. A core tube with uniform material turning according to claim 6, characterized in that: The structure of the material turning unit is a curved-side triangular prism (211C), one side of the curved-side triangular prism (211C) is a curved surface, the curved surface coincides with the inner wall of the pipe body (1), and the edge corresponding to the side is parallel to the center line of the interior of the pipe body (1).

9. The core tube with uniform material turning according to claim 4, characterized in that: The angle A2 between the guiding component (31) and the nearest material turning component (21) and the angle A1 between any two adjacent material turning components (21) are both 90°, and the structure of the material turning unit is a straight plate (211A).

10. A core tube with uniform material turning as claimed in claim 9, wherein: The angle B between the guiding component (31) and the center line of the pipe body (1) is 5°.

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