High-temperature coating equipment for silicon carbide rod

Abstract

The utility model discloses silicon carbide rod high-temperature coating equipment which comprises a box body, two groups of evaporation boxes which are symmetrical about the box body are arranged on the box body, air outlet ends of the two groups of evaporation boxes extend into the box body and are provided with air boxes, the air boxes are static pressure air boxes, and a plurality of groups of silicon carbide rods which are arranged at equal intervals are arranged between the air outlet ends of the two groups of air boxes. An air heater corresponding to the evaporation box is installed on the box body, and the air outlet end of the air heater is connected with the evaporation box. The device has the beneficial effects that the two groups of symmetrical evaporation boxes and air boxes are matched to supply air to the multiple groups of silicon carbide rods positioned in the middle, and the air boxes are static pressure air boxes and can uniformly blow evaporated coating materials to the silicon carbide rods along with stable air quantity, so that the coating materials can be uniformly attached to the multiple groups of silicon carbide rods; therefore, the coating thickness on the silicon carbide rod is uniform, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon carbon rod processing, in particular to a silicon carbon rod high-temperature coating device. Background Art

[0002] Carbon silicon rods are mainly fire-resistant and high-temperature resistant materials, used as high-temperature heating elements. When used in hydrogen, silicon carbon rods will become brittle and shorten their life. Silicon carbon rods will corrode when in contact with alkali metals, alkalis, silicates, borides, etc., so they should be avoided from contacting the rod body. The silicon carbon rod terminal clamp should be in close contact with the aluminum head at the cold end of the rod body. If the silicon carbon rod is found to be broken or white-burned during use, replace it with a new rod in an emergency.

[0003] During the coating process of some existing silicon carbon rods, the coating material is evaporated and attached to the surface of the silicon carbon rod by high temperature. Since the position of the evaporation source is fixed, the thickness of the coating material attached to each silicon carbon rod is different, which affects the uniformity of the silicon carbon rod coating and causes uneven product quality. Utility Model Content

[0004] The purpose of the utility model is to overcome the disadvantages that some existing silicon carbon rods mainly rely on high temperature to evaporate the coating material and attach it to the surface of the silicon carbon rod during the coating process. Since the position of the evaporation source is fixed, the thickness of the coating material attached to each silicon carbon rod is different, which affects the uniformity of the silicon carbon rod coating and thus causes uneven product quality. A high-temperature coating device for silicon carbon rods is provided.

[0005] The purpose of the utility model is achieved through the following technical solutions: a silicon carbon rod high-temperature coating device, including a box body, on which are installed two groups of evaporation boxes symmetrical to the box body, the air outlet ends of the two groups of evaporation boxes extend into the box body and are installed with bellows, which are static pressure bellows, and multiple groups of silicon carbon rods arranged at equal distances are installed between the air outlet ends of the two groups of bellows, and a hot air blower corresponding to the evaporation box is installed on the box body, and the air outlet end of the hot air blower is connected to the evaporation box, and air is supplied to multiple groups of silicon carbon rods located in the middle by arranging two groups of symmetrical evaporation boxes and bellows, and the bellows are static pressure bellows that can blow the evaporated coating material evenly to the silicon carbon rods with a stable air volume, so that the coating material can be evenly attached to the multiple groups of silicon carbon rods, so that the coating thickness on the silicon carbon rods is uniform, thereby improving the quality of the product.

[0006] A further technical solution is that a heat recovery pipe is installed on the box body, the air inlet end of the heat recovery pipe is located in the middle of the box body, and the air outlet end of the heat recovery pipe is connected to the wind box. By setting up the heat recovery pipe, part of the heat in the airflow can be returned to the box body, saving a certain amount of heat energy.

[0007] A further technical solution is that an exhaust pipe is installed on the heat recovery pipe, and the exhaust pipe is connected to an external air purification device. By setting the exhaust pipe, the blown air flow enters the external air purification device for purification, thereby avoiding pollution caused by leakage of coating materials.

[0008] A further technical solution is that multiple groups of rotatable mounting seats are installed in the box body, and a first clamping block and two second clamping blocks are installed on each of the multiple mounting seats. The first clamping block and the two second clamping blocks are distributed in a triangle, and the end of the silicon carbon rod is installed between the first clamping block and the second clamping block. An elastic member is installed on the side of the second clamping block away from the silicon carbon rod. The silicon carbon rod can be clamped by cooperating with the first clamping block and the second clamping block. At the same time, the elastic member can maintain stable clamping of the silicon carbon rod when the outer diameters of the ends of the silicon carbon rod are different, thereby improving the stability of the equipment.

[0009] A further technical solution is that an evaporation source is installed in the evaporation box, and an electric heating plate is installed on the side of the evaporation source away from the air outlet of the evaporation box. By providing the electric heating plate, the evaporation source can evaporate faster and the coating efficiency can be improved.

[0010] The utility model has the following advantages: the utility model provides two groups of symmetrical evaporation boxes and wind boxes to supply air to multiple groups of silicon carbon rods located in the middle; the wind box is a static pressure wind box that can blow the evaporated coating material evenly to the silicon carbon rods with a stable air volume, so that the coating material can be evenly attached to the multiple groups of silicon carbon rods, thereby making the coating thickness on the silicon carbon rods uniform and improving the quality of the product; the silicon carbon rods can be clamped by providing a first clamping block and a second clamping block to cooperate with each other; and the elastic member can be provided to maintain stable clamping of the silicon carbon rods when the outer diameters of the ends of the silicon carbon rods are different, thereby improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic cross-sectional view of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the mounting base structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the cross-sectional structure of the evaporation box of the utility model;

[0014] In the figure, 1, box body; 2, silicon carbon rod; 3, evaporation box; 4, bellows; 5, hot air blower; 6, motor; 7, heat recovery pipe; 8, exhaust pipe; 9, mounting seat; 10, rotating rod; 11, transmission chain; 12, first clamping block; 13, second clamping block; 14, elastic member; 15, evaporation source; 16, electric heating plate. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0017] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0018] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0019] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] like Figures 1 to 3As shown, a silicon carbon rod high temperature coating equipment comprises a box body 1, on which two groups of evaporation boxes 3 symmetrical to the box body 1 are installed, the air outlet ends of the two groups of evaporation boxes 3 are extended into the box body 1 and are installed with wind boxes 4, the wind boxes 4 are static pressure wind boxes, and multiple groups of silicon carbon rods 2 arranged at equal distances are installed between the air outlet ends of the two groups of wind boxes 4, and a hot air blower 5 corresponding to the evaporation box 3 is installed on the box body 1, and the air outlet end of the hot air blower 5 is connected to the evaporation box 3, and air is supplied to the multiple groups of silicon carbon rods 2 located in the middle by arranging two groups of symmetrical evaporation boxes 3 and wind boxes 4 in coordination, and the wind boxes 4 are static pressure wind boxes capable of evaporating The coating material follows the stable air volume and is evenly blown to the silicon carbon rod 2, so that the coating material can be evenly attached to multiple groups of silicon carbon rods 2, so that the coating thickness on the silicon carbon rods 2 is uniform, and the quality of the product is improved. A heat recovery pipe 7 is installed on the box body 1. The air inlet end of the heat recovery pipe 7 is located in the middle of the box body 1. The air outlet end of the heat recovery pipe 7 is connected to the wind box 4. By setting the heat recovery pipe 7, part of the heat in the airflow can be recovered into the box body 1, saving a certain amount of heat energy. An exhaust pipe 8 is installed on the heat recovery pipe 7, and the exhaust pipe 8 is connected to the external air purification device. By setting the exhaust pipe 8, the blasted airflow can be The external air purification device is used for purification to avoid pollution caused by leakage of coating materials. Multiple groups of rotatable mounting seats 9 are installed in the box body 1. A first clamping block 12 and two second clamping blocks 13 are installed on the multiple groups of mounting seats 9. The first clamping block 12 and the two second clamping blocks 13 are distributed in a triangular shape. The end of the silicon carbon rod 2 is installed between the first clamping block 12 and the second clamping block 13. The second clamping block 13 is installed with an elastic member 14 on the side away from the silicon carbon rod 2. The silicon carbon rod 2 can be clamped by arranging the first clamping block 12 and the second clamping block 13 to cooperate with each other. At the same time, the elastic member 14 can be arranged on the silicon carbon rod 2 is different, the silicon carbon rod 2 can still be stably clamped, thereby improving the stability of the equipment. An evaporation source 15 is installed in the evaporation box 3, and an electric heating plate 16 is installed on the side of the evaporation source 15 away from the air outlet of the evaporation box 3. By setting the electric heating plate 16, the evaporation source 15 can evaporate and evaporate faster, thereby improving the coating efficiency. The mounting seat 9 is rotatably connected to the box body 1 through a rotating rod 10, and a motor 6 is installed on the box body 1. The motor 6 drives the rotating rod 10 and the mounting seat 9 to rotate through a transmission chain 11, thereby rotating the silicon carbon rod 2 on the mounting seat 9, thereby making the coating of the silicon carbon rod 2 more uniform.

[0022] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A silicon carbon rod high temperature coating device, comprising a housing (1), characterized in that: The box body (1) is provided with two groups of evaporation boxes (3) symmetrical with respect to the box body (1); the air outlet ends of the two groups of evaporation boxes (3) extend into the box body (1) and are provided with wind boxes (4); a plurality of groups of silicon carbon rods (2) arranged at equal distances are provided between the air outlet ends of the two groups of wind boxes (4); a hot air blower (5) corresponding to the evaporation box (3) is provided on the box body (1); and the air outlet end of the hot air blower (5) is connected to the evaporation box (3).

2. A silicon carbon rod high temperature coating device according to claim 1, characterized in that: The bellows (4) is a static pressure bellows.

3. The silicon carbon rod high temperature coating equipment according to claim 1, characterized in that: A heat recovery pipe (7) is installed on the box body (1), the air inlet end of the heat recovery pipe (7) is located in the middle of the box body (1), and the air outlet end of the heat recovery pipe (7) is connected to the wind box (4).

4. A silicon carbon rod high temperature coating device according to claim 3, characterized in that: An exhaust pipe (8) is installed on the heat recovery pipe (7), and the exhaust pipe (8) is connected to an external air purification device.

5. The silicon carbon rod high temperature coating equipment according to claim 1, characterized in that: A plurality of groups of rotatable mounting seats (9) are installed in the box body (1), and a first clamping block (12) and two second clamping blocks (13) are installed on each of the plurality of groups of mounting seats (9). The first clamping block (12) and the two second clamping blocks (13) are distributed in a triangular shape. The end of the silicon carbon rod (2) is installed between the first clamping block (12) and the second clamping block (13), and an elastic member (14) is installed on a side of the second clamping block (13) away from the silicon carbon rod (2).

6. The silicon carbon rod high temperature coating equipment according to claim 1, characterized in that: An evaporation source (15) is installed in the evaporation box (3), and an electric heating plate (16) is installed on a side of the evaporation source (15) away from an air outlet end of the evaporation box (3).

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