A steel surface coating heat treatment apparatus

Abstract

The utility model relates to the technical field of coating heat treatment, concretely to a steel surface coating heat treatment device, including the box, the left side of box is provided with the strip steel transmission device, the right side of box is connected with the sintering furnace through the heat insulation structure, the front side intercommunication of box has the gas pipe, the top and bottom fixed connection of box inner chamber have the heating strip and the heating rod, the heating strip and heating rod are connected with the controller electrically. This scheme can when the heat treatment device needs to dry the coating of strip steel surface, the staff starts the heating strip and heating rod through the controller, heats the air in the box, then the preheating gas enters the gas guide pipe, then filters the impurity in it through the filtering mechanism, then the preheating gas that filters is finished enters the gas delivery board through the connecting pipe, again preheats the coating on the surface of strip steel through the gas delivery board, to complete the purpose of preheating the coating on the surface of strip steel in advance.

Description

Technical Field

[0001] This utility model relates to the field of coating heat treatment technology, specifically a steel surface coating heat treatment device. Background Technology

[0002] Heat treatment equipment typically involves first drying the coating on the steel surface in the front section to reduce the moisture content of the coating liquid, and then sintering it in the rear section based on the front section. This improves the surface smoothness of the coating and makes the coating bond more firmly to the steel surface. Finally, it enters the cooling section for cooling to complete the heat treatment. One type of steel used in this process is strip steel.

[0003] When the heat treatment device dries the coating on the surface of the strip steel in the front section, it can only complete the coating drying task. The un-dried coating areas of the strip steel entering the drying area need to be heated from zero. Traditional heat treatment devices lack effective utilization of the waste heat generated during the drying process and cannot preheat the coating by recovering the waste heat gas. The un-preheated coating needs to go through a complete heating process of "room temperature → coating softening → curing". Without preheating, the coating cannot reach the softening state in advance, which leads to a longer drying time and increased energy consumption in the entire drying process. Utility Model Content

[0004] The purpose of this invention is to provide a heat treatment device for steel surface coating, so as to solve the problem that the heat treatment device mentioned in the background art cannot preheat the surface coating of strip steel during drying.

[0005] To achieve the above objectives, this utility model provides the following technical solution, including a housing, a steel belt transmission device on the left side of the housing, a sintering furnace connected to the right side of the housing via a heat insulation structure, heating strips and heating rods fixedly connected to the top and bottom of the inner cavity of the housing, the heating strips and heating rods being electrically connected to a controller, the heating strips and heating rods being arranged in a mutually oriented manner, air guide pipes connected to the upper and lower sides of the front side of the housing, a filter mechanism connected to the left side of the air guide pipe, an air supply plate connected to the left side of the filter mechanism via a connecting pipe, a preheating chamber opened on the left side of the inner cavity of the housing, the surface of the air supply plate being fixedly connected to the inner wall of the preheating chamber inside the housing, an exhaust pipe connected to the preheating chamber inside the housing, and an air supply pipe connected to the front side of the housing, the air supply pipe being connected to external equipment.

[0006] Preferably, the filtration mechanism includes a fixed shell, which is fixedly connected to the housing. The right side of the fixed shell is connected to the air guide pipe, and the left side of the fixed shell is connected to the air conveying plate through a connecting pipe. A fan is fixedly connected to the inner cavity of the fixed shell, and a filter assembly is fixedly connected to the inner cavity of the fixed shell through an installation structure.

[0007] Preferably, the mounting structure includes two mounting plates, which are fixedly connected to the filter assembly. The surface of the mounting plate is movably connected to the fixed shell. Both the mounting plate and the fixed shell have threaded holes that match bolts, and the inner cavity of the threaded holes is threaded with bolts.

[0008] Preferably, a sealing ring is fixedly connected to the right side of the fixed shell, and the inner cavity of the sealing ring is fixedly connected to the air guide tube.

[0009] Preferably, fixing strips are fixedly connected to the bottom of both the front and rear sides of the fixed shell, and the bottom of the fixing strips is fixedly connected to the box body.

[0010] Preferably, the heat insulation structure includes a square tube, with its two sides connected to the box body and the sintering furnace respectively, and a heat insulation plate fixedly connected to the inner cavity of the square tube.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This solution allows operators to activate heating bars and heating rods via controllers to heat the air inside the chamber when the heat treatment unit needs to dry the coating on the strip surface. The preheated gas then enters the air guide pipe and is filtered to remove impurities. The filtered preheated gas then enters the air conveying plate through a connecting pipe, and the air conveying plate further preheats the coating on the strip surface, thus achieving the purpose of preheating the coating on the strip surface in advance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the single structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the single structure of this utility model;

[0016] Figure 4 This is a cross-sectional view of the single structure of this utility model.

[0017] In the diagram: 1. Housing; 2. Steel strip transmission device; 3. Sintering furnace; 4. Heating strip; 5. Heating rod; 6. Air guide pipe; 7. Filtering mechanism; 701. Fixed shell; 702. Fan; 703. Filter group; 704. Mounting plate; 705. Sealing ring; 706. Fixing strip; 8. Air conveying plate; 9. Exhaust pipe; 10. Air conveying pipe; 11. Square tube; 12. Heat insulation plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Example 1:

[0021] Please see Figure 1-4 This utility model provides a technical solution: a steel surface coating heat treatment device, including a box body 1. A steel belt transmission device 2 is provided on the left side of the box body 1. A sintering furnace 3 is connected to the right side of the box body 1 through a heat insulation structure. Heating strips 4 and heating rods 5 are fixedly connected to the top and bottom of the inner cavity of the box body 1. The heating strips 4 and heating rods 5 are electrically connected to a controller. The heating strips 4 and heating rods 5 are arranged in a mutually arranged manner. Air guide pipes 6 are connected to the upper and lower sides of the front side of the box body 1. A filter mechanism 7 is connected to the left side of the air guide pipe 6. An air supply plate 8 is connected to the left side of the filter mechanism 7 through a connecting pipe. A preheating chamber is opened on the left side of the inner cavity of the box body 1. The surface of the air supply plate 8 is fixedly connected to the inner wall of the preheating chamber inside the box body 1. An exhaust pipe 9 is connected to the preheating chamber inside the box body 1. An air supply pipe 10 is connected to the front side of the box body 1. The air supply pipe 10 is connected to external equipment.

[0022] Analysis of the above content: When the heat treatment device needs to dry the coating on the surface of the strip steel, the operator first starts the heating strip 4 and heating rod 5 in the chamber 1 through the controller. At the same time, the air supply pipe (10) inside the chamber 1 allows the external equipment to supply air to the inside of the chamber 1. The heating strip 4 and heating rod 5 heat the air. At this time, the heated air will fill the inside of the chamber 1, and at the same time, some of the preheated gas enters the air guide pipe 6. Then, the impurities in it are filtered through the filter mechanism 7. After the preheated gas is filtered, it enters the air supply plate 8 through the connecting pipe, and then the air supply plate 8 is used to dry the surface of the strip steel. The coating is preheated to preheat the surface coating of the strip steel. When the external controller detects that the drying time has reached the corresponding time, the operator starts the strip steel transmission device 2 to transfer the strip steel into the box 1 to dry the preheated strip steel coating. Then, it enters the sintering furnace 3 through the heat insulation structure for sintering. When the external controller detects that the sintering time has reached the corresponding time, the operator starts the strip steel transmission device 2 to transfer the strip steel into the cooling section of the sintering furnace 3 to cool the sintered strip steel. Finally, the strip steel is recycled by the coiler to complete the heat treatment.

[0023] Example 2:

[0024] Please see Figure 1-4 The present invention provides a technical solution based on Embodiment 1: the filter mechanism 7 includes a fixed shell 701, the fixed shell 701 is fixedly connected to the housing 1, the right side of the fixed shell 701 is connected to the air guide pipe 6, the left side of the fixed shell 701 is connected to the air conveying plate 8 through a connecting pipe, a fan 702 is fixedly connected to the inner cavity of the fixed shell 701, and a filter group 703 is fixedly connected to the inner cavity of the fixed shell 701 through an installation structure.

[0025] Analysis of the above content: When the waste heat gas enters the gas guide pipe 6, it can slowly enter the fixed shell 701 by itself or quickly enter through the fan 702. After entering the fixed shell 701, the waste heat gas passes through the filter group 703 to filter different impurities. After filtration, the gas enters the gas conveying plate 8 through the connecting pipe, thereby filtering the recovered waste heat gas.

[0026] Example 3:

[0027] Please see Figure 1-4 The present invention provides a technical solution based on Embodiment 1: the installation structure includes two mounting plates 704, which are fixedly connected to the filter group 703. The surface of the mounting plate 704 is movably connected to the fixed shell 701. The surfaces of the mounting plate 704 and the fixed shell 701 are provided with threaded holes that match bolts, and the inner cavity of the threaded holes is threaded with bolts.

[0028] Analysis of the above content: By setting the mounting plate 704, after the filter group 703 is placed in the fixed shell 701, the fixed shell 701 drives the mounting plate 704 to contact the surface of the fixed shell 701, and at the same time, the threaded holes on the mounting plate 704 and the fixed shell 701 align with each other. Then, the operator inserts bolts into the threaded holes to fix it, thereby installing the filter group 703 in the fixed shell 701.

[0029] Example 4:

[0030] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: a sealing ring 705 is fixedly connected to the right side of the fixed shell 701, and the inner cavity of the sealing ring 705 is fixedly connected to the air guide tube 6.

[0031] Analysis of the above content: By setting a sealing ring 705 to seal the connection between the fixed shell 701 and the air guide pipe 6, gas leakage is prevented from occurring due to gaps during long-term use.

[0032] Example 5:

[0033] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: the bottom of the front and rear sides of the fixed shell 701 is fixedly connected with a fixing strip 706, and the bottom of the fixing strip 706 is fixedly connected to the box body 1.

[0034] Analysis of the above content: By setting the fixing strip 706 to reinforce the connection between the fixing shell 701 and the box 1, it is possible to prevent the fixing shell 701 from falling off at the connection with the box 1 during long-term use.

[0035] Example 6:

[0036] Please see Figure 1-4 The present invention provides a technical solution based on Embodiment 1: the heat insulation structure includes a square tube 11, the two sides of the square tube 11 are respectively connected to the box body 1 and the sintering furnace 3, and the inner cavity of the square tube 11 is fixedly connected to a heat insulation plate 12.

[0037] Analysis of the above content: By setting up the square tube 11 and the heat insulation plate 12 in combination, the square tube 11 connects the box 1 and the sintering furnace 3, while the heat insulation plate 12 can prevent the temperatures in the box 1 and the sintering furnace 3 from being independent of each other and prevent them from interfering with each other.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat treatment apparatus for steel surface coating, characterized in that, include: The box (1) has a steel belt transmission device (2) on its left side and a sintering furnace (3) connected to its right side via a heat insulation structure. Heating strips (4) and heating rods (5) are fixedly connected to the top and bottom of the inner cavity of the box (1). The heating strips (4) and heating rods (5) are electrically connected to a controller. The heating strips (4) and heating rods (5) are arranged in a mutually oriented manner. Gas guide pipes (6) are connected to both the upper and lower sides of the front of the box (1). The left side of the air duct (6) is connected to a filter mechanism (7), and the left side of the filter mechanism (7) is connected to an air supply plate (8) through a connecting pipe. A preheating chamber is opened on the left side of the inner cavity of the box (1). The surface of the air supply plate (8) is fixedly connected to the inner wall of the preheating chamber inside the box (1). The preheating chamber inside the box (1) is connected to an exhaust pipe (9). The front side of the box (1) is connected to an air supply pipe (10), and the air supply pipe (10) is connected to an external device.

2. The steel surface coating heat treatment apparatus according to claim 1, characterized in that: The filtration mechanism (7) includes a fixed shell (701), which is fixedly connected to the housing (1). The right side of the fixed shell (701) is connected to the air guide pipe (6), and the left side of the fixed shell (701) is connected to the air conveying plate (8) through a connecting pipe. A fan (702) is fixedly connected to the inner cavity of the fixed shell (701), and a filter group (703) is fixedly connected to the inner cavity of the fixed shell (701) through an installation structure.

3. The steel surface coating heat treatment apparatus according to claim 2, characterized in that: The mounting structure includes two mounting plates (704), which are fixedly connected to the filter assembly (703) relative to each other. The surface of the mounting plate (704) is movably connected to the fixed shell (701). The surfaces of the mounting plate (704) and the fixed shell (701) are provided with threaded holes that match the bolts, and the inner cavity of the threaded holes is threaded with bolts.

4. The steel surface coating heat treatment apparatus according to claim 2, characterized in that: A sealing ring (705) is fixedly connected to the right side of the fixed shell (701), and the inner cavity of the sealing ring (705) is fixedly connected to the air guide tube (6).

5. A steel surface coating heat treatment apparatus according to claim 2, characterized in that: The bottom of the front and rear sides of the fixed shell (701) are fixedly connected with fixing strips (706), and the bottom of the fixing strips (706) are fixedly connected to the box body (1).

6. The steel surface coating heat treatment apparatus according to claim 1, characterized in that: The heat insulation structure includes a square tube (11), the two sides of which are connected to the box body (1) and the sintering furnace (3) respectively, and the inner cavity of the square tube (11) is fixedly connected to a heat insulation plate (12).

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