Drying system, equipment and method for annealing furnace

Abstract

The invention discloses an annealing furnace drying system, device and method, relates to the technical field of industrial furnace heat treatment, and can improve the drying efficiency of an annealing furnace. The annealing furnace drying system comprises a heating device used for heating materials in an annealing furnace; the cooling device comprises a radiant tube, the radiant tube comprises an inlet end, a pipeline body and an outlet end, the pipeline body is arranged in the annealing furnace, the inlet end is communicated with a gaseous medium outside the annealing furnace, and the outlet end of the radiant tube is communicated with a fan; the drying device comprises a drying pipeline, and the drying pipeline is communicated with the radiant tube through the fan; wherein the fan is used for controlling the gaseous medium to flow from the gas inlet end to the gas outlet end, and the gaseous medium is conveyed to the drying pipeline; and the gaseous medium flowing through the radiant tube is used for absorbing heat of the annealing furnace.

Description

Technical Field

[0001] The present application relates to the technical field of industrial furnace heat treatment, and in particular to an annealing furnace drying system, equipment and method. Background Art

[0002] At present, annealing furnace is an industrial furnace used for heat treatment of materials. Annealing furnace is usually divided into heating section, air pipe cooling section, water spraying and hot air drying section. The heating section is used to heat the material to reach the process temperature, the air pipe cooling section is used to cool the material, the water spraying is used to finally cool the material to room temperature, and the hot air drying section is used to dry the water marks on the surface of the material.

[0003] However, the existing hot air drying furnace section uses the technical principle of steam heat exchange to heat the air to dry the material. However, due to the low efficiency of steam heat exchange, the hot air drying cannot achieve a good drying effect, so that the material cannot be completely dried, which will cause quality defects.

[0004] In summary, the low efficiency of steam heat exchange is a problem that needs to be solved urgently. Summary of the invention

[0005] The embodiments of the present application provide an annealing furnace drying system, equipment and method, which can improve the drying efficiency of the annealing furnace.

[0006] According to a first aspect of an embodiment of the present application, an annealing furnace drying system is provided, comprising:

[0007] A heating device, used to heat the material in the annealing furnace;

[0008] The cooling device comprises a radiation tube, wherein the radiation tube comprises an inlet end, a pipe body and an outlet end, the pipe body is arranged in the annealing furnace, the inlet end is communicated with the gaseous medium outside the annealing furnace, and the outlet end of the radiation tube is communicated with the fan;

[0009] A drying device, comprising a drying pipeline, wherein the drying pipeline is connected to the radiation tube through a fan;

[0010] Among them, the fan is used to control the gaseous medium to flow from the gas inlet end to the gas outlet end and transmit it to the drying pipeline;

[0011] The gaseous medium flowing through the radiant tube is used to absorb heat from the material.

[0012] In some embodiments, a cooling branch is included, a valve is provided on the cooling branch, one end of the cooling branch is connected to the gas inlet end of the fan, and the other end is used to connect to the cooling medium to transmit the cooling medium.

[0013] In some embodiments, a control device is included, which is connected to the valve of the cooling branch, and the control device is used to control the opening degree and opening time of the valve.

[0014] In some embodiments, a temperature detection device is included and is disposed at the gas outlet end of the blower. The temperature detection device is used to detect the temperature of the drying medium transmitted to the drying pipeline.

[0015] In some embodiments, the temperature detection device is connected to the control device, and the control device controls the opening degree and opening time of the valve based on the temperature signal of the temperature detection device.

[0016] In some embodiments, the drying medium includes: a gaseous medium; and / or

[0017] Cooling medium.

[0018] In some embodiments, a plurality of spray ports are provided on the drying pipeline, and the spray ports are used to spray the drying medium onto the material.

[0019] In some embodiments, the gaseous medium comprises air; and / or

[0020] The cooling medium includes air.

[0021] A second aspect of the embodiment of the present application provides an annealing furnace drying device, comprising:

[0022] An annealing furnace drying system according to any one of the above technical solutions.

[0023] A third aspect of the embodiments of the present application provides an annealing furnace drying method, which is applied to the annealing furnace drying system of any one of the above technical solutions, and the method comprises:

[0024] Heating the material using a heating device;

[0025] The radiation tube of the cooling device is used to exchange heat with the material. The radiation tube is used to absorb the gaseous medium, and the gaseous medium is used to exchange heat with the material.

[0026] The gaseous medium after heat exchange is transmitted to the drying device through the drying pipeline by the fan, and the drying device is used to dry the material.

[0027] The beneficial effects of this application are:

[0028] The heat of the material is reused by exchanging heat with the material through the gaseous medium of the radiation tube and transmitting the gaseous medium to the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic partial structural diagram of an annealing furnace drying system provided in an embodiment of the present application;

[0030] Figure 2 A schematic partial structural diagram of an annealing furnace drying device provided in an embodiment of the present application;

[0031] Figure 3 A schematic flow chart of an annealing furnace drying method provided in an embodiment of the present application.

[0032] The reference numerals in the figure represent respectively:

[0033] 100, heating device; 200, cooling device; 210, radiation tube; 211, inlet end; 212, pipeline body; 213, outlet end; 300, drying device; 400, fan; 401, gas inlet end; 402, gas outlet end; 500, cooling branch; 510, valve; 600, temperature detection device; 700, control device. DETAILED DESCRIPTION

[0034] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0035] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0036] The embodiments of the present application provide an annealing furnace drying system, equipment and method, which can improve the drying efficiency of the annealing furnace.

[0037] In the first aspect of this application, Figure 1 A schematic partial structural diagram of an annealing furnace drying system provided in an embodiment of the present application, see Figure 1 , provides an annealing furnace drying system, including: a heating device 100, a cooling device 200 and a drying device 300, and the material is dried after passing through the heating device 100, the cooling device 200 and the drying device 300.

[0038] In some examples, the heating device can be used to heat the material in the annealing furnace.

[0039] Exemplarily, the heating device can be used as a heating section of the material to heat the material so that the temperature in the annealing furnace reaches 700°C to 800°C.

[0040] In some examples, reference Figure 1 The cooling device 200 may include a radiation tube 210, which includes an inlet end 211, a pipe body 212 and an outlet end 213. The pipe body 212 is arranged in the annealing furnace, the inlet end 211 of the radiation tube 210 is connected to the gaseous medium, and the outlet end 213 of the radiation tube 210 is connected to the fan 400.

[0041] Exemplary, reference Figure 1 , the radiation tube 210 can surround the material. After the material is heated by the heating device 100, the fan 400 can be started to flow the gaseous medium through the inlet end 211 of the radiation tube 210 to the outlet end 213, so that the material can be heat-exchanged by the gaseous medium in the radiation tube 210, so that the heat of the material is absorbed by the gaseous medium in the radiation tube 210 to reduce the temperature of the material.

[0042] In some examples, the drying device may include a drying pipeline, and the drying pipeline is connected to the radiation tube through a fan.

[0043] Exemplary, reference Figure 1 The gaseous medium after heat exchange has a certain amount of heat. The fan 400 transmits the gaseous medium after heat exchange to the material through the drying pipeline in the drying device 300 for drying. The heat absorbed by the gaseous medium due to heat exchange can act on the material to dry the moisture on the surface of the material.

[0044] In some examples, the fan can control the gaseous medium to flow from the gas inlet end of the fan to the gas outlet end of the fan and transmit it to the drying pipeline.

[0045] Exemplary, reference Figure 1 Since the gas inlet end 401 of the fan 400 is connected to the outlet end 213 of the radiation tube 210, the gaseous medium can be sucked into the radiation tube 210 through the inlet end 211 of the radiation tube 210 during the process of the fan 400 sucking the gaseous medium. The gaseous medium after absorbing heat can be transmitted to the material through the gas outlet end 401 of the fan 400 to dry the material.

[0046] In some examples, a gaseous medium flowing through the radiant tubes can be used to absorb heat from the material.

[0047] Exemplarily, the temperature of the material is higher than the temperature of the gaseous medium, and the gaseous medium may be continuously heat-exchanged by a fan, thereby continuously exchanging heat with the annealing furnace to cool the temperature of the material.

[0048] The present application uses a gaseous medium through a radiation tube to exchange heat with the material to absorb the temperature of the material, and transmits the heat-absorbing gaseous medium to the material through a drying pipeline, and uses the above-mentioned heat to dry the moisture on the surface of the material to achieve the reuse of the heat of the material. The drying device of the present application does not need to introduce steam to dry the material, so the present application can reduce costs and be more energy-efficient. At the same time, by ensuring the heat exchange efficiency of the gaseous medium, the operation of the annealing furnace is more stable.

[0049] In addition, when the heat exchange efficiency of the gaseous medium is higher than that of the steam, the operating efficiency of the annealing furnace drying system of the present application can be improved.

[0050] In some examples, a water spray device is also included. The water spray device is arranged between the cooling device and the drying device. After passing through the cooling device, the material is cooled to room temperature by the water spray device, and then the moisture on the surface of the material is dried by the drying device.

[0051] In some examples, the fan may be an ATC (Automatic Temperature Control) circulation fan, which uses a constant speed motor to drive the fan impeller to rotate to generate kinetic energy, squeeze and accelerate the gas, so that the gas gains energy and generates flow.

[0052] Figure 2 A schematic partial structural diagram of an annealing furnace drying system provided in an embodiment of the present application. In some examples, reference Figure 2 The annealing furnace drying system further includes a cooling branch 500. A valve 510 is provided on the cooling branch 500. One end of the cooling branch 500 is connected to the gas inlet end 401 of the fan 400, and the other end can be used to communicate with the cooling medium to transmit the cooling medium.

[0053] Exemplarily, the temperature of the cooling medium is lower than the temperature of the gaseous medium after heat exchange, so that the cooling medium and the gaseous medium after heat exchange are mixed to form a mixed gas, and the temperature of the mixed gas is lower than the temperature of the gaseous medium after heat exchange, so that a certain volume of cooling medium can be mixed with the gaseous medium through the cooling branch, thereby adjusting the temperature of the gas used for drying.

[0054] In some examples, reference Figure 2 The annealing furnace drying system further includes a control device 700. The control device 700 is connected to the valve 510 of the cooling branch 500, and the control device 700 can be used to control the opening degree and opening time of the valve 510.

[0055] For example, the opening degree and opening time of the valve can control the volume of the cooling medium for mixing with the gaseous medium.

[0056] In some examples, reference Figure 2 The annealing furnace drying system further includes a temperature detection device 600. The temperature detection device 600 is disposed at the gas outlet end 401 of the fan 400, and the temperature detection device 600 can be used to detect the temperature of the drying medium transmitted to the drying pipeline.

[0057] Exemplarily, the temperature detection device is disposed at the gas outlet end of the fan, that is, the temperature detection device can be used to detect the temperature of the drying medium.

[0058] Exemplarily, the drying medium is the mixed gas mentioned above.

[0059] In some examples, the temperature detection device may be a temperature sensor, and a probe of the temperature detection device may be disposed inside a pipeline connecting the gas inlet end of the blower and the radiation tube.

[0060] In some examples, the model of the temperature detection device may be T1ARA3, 650, BRI-DN40PN10FS, KINC60, SCI, C1, SSO.

[0061] In some examples, the brand of the temperature detection device may be THERMO-EST.

[0062] In some examples, reference Figure 2 The temperature detection device 600 is connected to the control device 700 , and the control device 700 controls the opening degree and opening time of the valve 510 based on the temperature signal of the temperature detection device 600 .

[0063] Exemplarily, by comparing the temperature of the drying medium with the set temperature of the temperature detection device, the control device can control the opening and closing of the valve based on the comparison result. For example, if the temperature of the drying medium is greater than the set temperature of the temperature detection device, the control device controls the opening of the valve, and further, the opening degree and opening time of the valve can be controlled. If the temperature of the drying medium is less than the set temperature of the temperature detection device, the control device controls the closing of the valve.

[0064] In some examples, the control device includes a control cabinet or a PLC.

[0065] In some examples, the temperature detection device performs temperature measurement based on the thermoelectric effect, measures the temperature through the thermoelectric potential generated by thermal energy, and converts the temperature value into a current value of 4-20 mA through a transmitter and transmits it to a control system, such as a PLC control system, thereby realizing real-time detection of the hot gas temperature.

[0066] In some examples, the drying medium includes a gaseous medium.

[0067] In some examples, the drying medium includes a cooling medium.

[0068] In some examples, the drying medium includes a gaseous medium and a cooling medium.

[0069] For example, based on the different comparison results of the temperature detection device, the contents of each gas in the drying medium may be different, and the drying medium may only include the gaseous medium after heat exchange. In addition, the mixture of the gaseous medium and the cooling medium can reduce the temperature of the formed drying medium, thereby reducing the temperature at the impeller of the fan, and avoiding the phenomenon that the impeller of the fan is damaged due to continuous high temperature.

[0070] Exemplarily, the temperature of the drying medium ranges from 250°C to 280°C.

[0071] In some examples, a plurality of spray ports are provided on the drying pipeline, and the spray ports can be used to spray the drying medium onto the material.

[0072] Exemplarily, the drying pipeline may surround the material, the spray ports may be arranged at intervals, and the drying medium sprayed through the spray ports may be transferred to the material, thereby performing a drying operation on the material.

[0073] Exemplarily, the drying pipeline can also be set on one side of the material, the spray ports can be arranged at intervals, and the drying medium sprayed through the spray ports can be transmitted to the material, thereby drying the material.

[0074] In some examples, the gaseous medium includes air.

[0075] In some examples, the cooling medium includes air.

[0076] In some examples, the gaseous medium and the cooling medium both include air.

[0077] For example, the temperature of the material in the cooling device is higher than the room temperature, and the air is sucked into the radiation tube by the fan, and the air can be heat exchanged, and the air after heat exchange can be used to dry the material. At the same time, the temperature of the air after heat exchange is higher than the room temperature, and the temperature of the drying medium formed by mixing the air after heat exchange in the radiation tube with the air outside the annealing furnace can be lower than the temperature before mixing, thereby achieving the effect of reducing the temperature of the drying medium.

[0078] In a second aspect of the present application, an annealing furnace drying device is provided, comprising the annealing furnace drying system of any one of the above technical solutions.

[0079] The third aspect of this application is Figure 3A schematic flow chart of an annealing furnace drying method provided in an embodiment of the present application, refer to Figure 3 , provides an annealing furnace drying method, which can be applied to the annealing furnace drying system described in any of the above technical solutions. The annealing furnace drying method includes:

[0080] S100: heating the material by using a heating device;

[0081] S200: using the radiation tube of the cooling device to exchange heat with the material, the radiation tube is used to absorb the gaseous medium;

[0082] S300: The gaseous medium after heat exchange is transmitted to the drying device through the drying pipeline by using a fan, and the drying device can be used to dry the material.

[0083] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0084] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0085] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0086] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. An annealing furnace drying system, characterized in that: include: A heating device, used to heat the material in the annealing furnace; A cooling device, comprising a radiation tube, wherein the radiation tube comprises an inlet end, a pipe body and an outlet end, wherein the pipe body is arranged in the annealing furnace, the inlet end is communicated with a gaseous medium outside the annealing furnace, and the outlet end of the radiation tube is communicated with a fan; A drying device, comprising a drying pipeline, wherein the drying pipeline is connected to the radiation tube through the fan; Wherein, the fan is used to control the gaseous medium to flow from the gas inlet end to the gas outlet end and transmit it to the drying pipeline; The gaseous medium flowing through the radiation tube is used to absorb the heat of the material.

2. The annealing furnace drying system according to claim 1, characterized in that: include: A cooling branch is provided with a valve on the cooling branch, one end of the cooling branch is connected to the gas inlet end of the fan, and the other end is used to communicate with the cooling medium to transmit the cooling medium.

3. The annealing furnace drying system according to claim 2, characterized in that: include: A control device is connected to the valve of the cooling branch, and the control device is used to control the opening degree and opening time of the valve.

4. The annealing furnace drying system according to claim 2, characterized in that: include: A temperature detection device is arranged at the gas outlet end of the fan, and the temperature detection device is used to detect the temperature of the drying medium transmitted to the drying pipeline.

5. The annealing furnace drying system according to claim 4, characterized in that: The temperature detection device is connected to a control device, and the control device controls the opening degree and opening time of the valve based on the temperature signal of the temperature detection device.

6. The annealing furnace drying system according to claim 4, characterized in that: The drying medium includes: the gaseous medium; and / or The cooling medium.

7. The annealing furnace drying system according to claim 6, characterized in that: The drying pipeline is provided with a plurality of spray ports, and the spray ports are used to spray the drying medium onto the material.

8. The annealing furnace drying system according to any one of claims 1 to 7, characterized in that: The gaseous medium comprises air; and / or The cooling medium includes air.

9. An annealing furnace drying equipment, characterized in that: include: The annealing furnace drying system according to any one of claims 1 to 8.

10. An annealing furnace drying method, characterized in that: Applied to the annealing furnace drying system according to any one of claims 1 to 8, the method comprises: Heating the material using a heating device; The material is heat exchanged by using a radiation tube of a cooling device, wherein the radiation tube is used to absorb a gaseous medium, and the gaseous medium is used to heat exchange the material; The gaseous medium after heat exchange is transmitted to a drying device through a drying pipeline by a fan, and the drying device is used to dry the material.

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