Energy-saving drying curing oven applied to coating production line
By designing an energy-saving drying and curing oven that consists of a drying chamber and a curing chamber, the problems of increased floor space and energy consumption in the coating production line have been solved, achieving the effects of independent functional control and reduced energy consumption.
Patent Information
- Application Number
- CN202423179718.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-23
AI Technical Summary
In existing coating production lines, workpiece drying and curing require the use of two separate combustion furnaces, which increases the floor space, cost, and energy consumption.
Design an energy-saving drying and curing oven, which adopts a long tunnel structure drying and curing oven shell, divided into independent drying chamber and curing chamber. The drying and curing functions are controlled separately through different fan and air supply duct systems, and the temperature is adjusted separately using separate combustion furnace and fan systems.
It enables separate control of drying and curing functions, saving space and costs, reducing energy consumption by 15%-20%, and improving the heating efficiency of the combustion furnace.
Smart Images
Figure CN223698354U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of coating production line, concretely relates to a kind of energy-saving drying curing oven applied to coating production line. BACKGROUND
[0002] Coating production line process is generally divided into: pretreatment, drying, powder spraying coating, curing, product needs to be pretreated before spraying, remove dirt on the surface of product and make powder more fit during subsequent spraying, workpiece needs to be dried after pretreatment, powder is sprayed in dry state, after powder spraying is completed, curing chamber is entered for powder curing.
[0003] In prior art, because the temperature and required time of workpiece drying and curing are different, different drying and curing ovens are generally used, so that two combustion furnaces are used to work, thereby leading to greatly increased floor area, cost and energy consumption. INVENTION CONTENTS
[0004] To solve the technical problems existing in the prior art, the purpose of the utility model is to provide an energy-saving drying curing oven applied to coating production line, which can complete drying and curing two processes by using only one oven and one combustion furnace.
[0005] The purpose of the utility model is achieved by the following technical scheme: an energy-saving drying curing oven applied to coating production line, comprising drying curing oven shell, combustion furnace, drying fan, curing fan and air supply pipeline, the drying curing oven shell is long tunnel structure, which is divided into left and right two independent channels along tunnel axis by partition, which are drying chamber and curing chamber respectively; the drying fan comprises first fan, and the curing fan comprises third fan; the air supply pipeline comprises drying heat supply pipeline, drying cold return pipeline, curing heat supply pipeline and curing cold return pipeline, the drying heat supply pipeline and drying cold return pipeline are communicated with the combustion furnace and drying chamber, and the first fan is arranged on the drying heat supply pipeline; the curing heat supply pipeline and curing cold return pipeline are communicated with the combustion furnace and curing chamber, and the third fan is arranged on the curing heat supply pipeline.
[0006] Compared with prior art, the utility model has at least the following beneficial effects:
[0007] 1. The utility model uses only one drying curing oven shell, realizes independent control of drying function and curing function, saves space and cost.
[0008] 2. The utility model uses only one combustion furnace, and the temperature of drying chamber and curing chamber can be controlled independently. When drying, only the drying chamber can be started, and when curing, only the curing chamber can be started, which effectively saves energy.
[0009] Further, the drying fan further comprises a second fan arranged on the drying cold return pipeline. The main reason for arranging a second fan for extracting cold air on the drying cold return pipeline is that the pre-drying process is pretreatment, so as to dry the workpiece as soon as possible and facilitate entering the next spraying process, and the spraying process needs to ensure that the surface of the workpiece is dry.
[0010] Specifically, the power of the first fan and the second fan is 4kw, and the power of the third fan is 7.5kw.
[0011] Further, the air extraction port end of the first fan, the second fan and the third fan is respectively provided with a pneumatic valve. By controlling the opening and closing of each pneumatic valve, the drying chamber and the curing chamber can be controlled to be used alone or simultaneously.
[0012] Further, the bottom of the drying chamber and the curing chamber is respectively paved with an air groove, air outlets are arranged at the two sides of the air groove in a spaced manner, the drying heat supply pipeline is in communication with the air groove of the drying chamber, and the curing heat supply pipeline is in communication with the air groove of the curing chamber. The temperature of the drying chamber and the curing chamber is uniformly distributed.
[0013] Specifically, the top of the drying chamber and the curing chamber is respectively provided with a conveying track for hoisting the workpiece.
[0014] Further, temperature sensors are arranged in the drying chamber and the curing chamber respectively. When the temperature conveyed by the combustion furnace in the drying chamber or the curing chamber reaches the set temperature, the combustion furnace stops working, and when the set temperature has deviated, the combustion furnace starts working, so that the temperature reaches the set temperature. The adjustable temperature of the drying chamber is 60-200 DEG C, and the adjustable temperature of the curing chamber is 60-220 DEG C.
[0015] Specifically, the partition plate is an iron plate or a heat preservation plate. The drying chamber and the curing chamber are independent.
[0016] Specifically, the combustion furnace is placed below the drying and curing furnace shell. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structure schematic view of an embodiment of the utility model.
[0018] Figure 2 It is Figure 1 A partial enlarged view.
[0019] Figure 3 It is a longitudinal structure schematic view of an embodiment of the utility model.
[0020] Figure 4 It is an open structure schematic view of the embodiment of the utility model for removing the wallboard of the drying chamber.
[0021] In the figure: 10 - drying and curing oven shell; 12 - partition; 14 - drying chamber; 16 - curing chamber; 20 - combustion furnace; 31 - first fan; 34 - second fan; 42 - third fan; 51 - drying heat supply pipeline; 53 - drying cold return pipeline; 56 - curing heat supply pipeline; 58 - curing cold return pipeline; 60 - air chute. DETAILED DESCRIPTION
[0022] In order to facilitate the understanding of the present application, the technical solutions and advantages of the present application are further described in detail below in combination with the drawings and examples. The mechanisms or methods not described in the present application can refer to the prior art. The specific structure and characteristics of the present application are described below by way of example, which should not constitute any limitation on the present application. At the same time, any one of the technical features mentioned below (including implied or disclosed), as well as any one of the technical features directly shown or implied in the drawings, can continue to be combined or deleted between these technical features, thereby forming more other embodiments that may not be directly or indirectly mentioned in the present application. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0023] As shown in Figures 1-4 the present embodiment, the energy-saving drying and curing oven applied to the coating production line comprises a drying and curing oven shell 10, a combustion furnace 20, a drying fan, a curing fan, an air supply pipeline, an air chute 60, a pneumatic valve and a conveying track.
[0024] Specifically, the drying and curing oven shell 10 is a long tunnel structure, which is divided into left and right two independent channels along the tunnel axis by a partition 12, which are a drying chamber 14 and a curing chamber 16, respectively. The partition 12 is an iron plate or a heat preservation plate, and the partition 12 is preferably a heat preservation plate in the present embodiment. Temperature sensors are arranged in the drying chamber 14 and the curing chamber 16, respectively. When the temperature delivered by the combustion furnace 20 in the drying chamber 14 or the curing chamber 16 reaches the set temperature, the combustion furnace 20 stops working, and when the set temperature has deviated, the combustion furnace 20 starts working to make the temperature reach the set temperature. The drying chamber can adjust the temperature: 60℃-200℃, and the curing chamber can adjust the temperature: 60℃-220℃.
[0025] The combustion furnace 20 is placed below the drying and curing oven shell 10.
[0026] The drying fan and the curing fan are connected to the drying and curing furnace shell 10 and the combustion furnace 20 respectively through the air supply pipeline. The drying fan includes two small-power fans, i.e., the first fan 31 and the second fan 34. The curing fan is a third fan 42 with large power. The air supply pipeline includes a drying heat supply pipeline 51, a drying cold return pipeline 53, a curing heat supply pipeline 56 and a curing cold return pipeline 58. The drying heat supply pipeline 51 and the drying cold return pipeline 53 are connected to the combustion furnace 20 and the drying chamber 14. The first fan 31 is arranged on the drying heat supply pipeline 51 and is used to extract the heat of the combustion furnace 20 to control the heat delivery of the drying chamber 14. The second fan 34 is arranged on the drying cold return pipeline 53 and is used to extract the cold air in the drying chamber 14 to return to the combustion furnace 20. The curing heat supply pipeline 56 and the curing cold return pipeline 58 are connected to the combustion furnace 20 and the curing chamber 16. The third fan 42 is arranged on the curing heat supply pipeline 56 and is used to extract the heat of the combustion furnace 20 to control the heat delivery of the curing chamber 16. The curing cold return pipeline 58 is not provided with a fan for extracting air, and the cold air in the curing chamber 16 is returned to the combustion furnace 20 naturally. In the embodiment, the power of the first fan 31 and the second fan 34 is 4 kW, and the power of the third fan 42 is 7.5 kW. The main reason for arranging the second fan 34 for extracting cold air on the drying cold return pipeline 53 is that the previous process before drying is pretreatment. In order to dry the workpiece as soon as possible and facilitate the next spraying process, the spraying process needs to ensure that the surface of the workpiece is dry.
[0027] In order to uniformly distribute the temperature of the drying chamber 14 and the curing chamber 16, the bottom of the drying chamber 14 and the curing chamber 16 is respectively paved with an air slot 60, and air outlets are arranged at intervals on both sides of the air slot 60. The drying heat supply pipeline 51 is connected to the air slot 60 of the drying chamber 14, and the heat delivered by the drying heat supply pipeline 51 is uniformly delivered to the drying chamber 14 by the air slot 60. The curing heat supply pipeline 56 is connected to the air slot 60 of the curing chamber 16, and the heat delivered by the curing heat supply pipeline 56 is uniformly delivered to the curing chamber 16 by the air slot 60.
[0028] In order to separately control the operation of the drying chamber 14 and the curing chamber 16, pneumatic valves are arranged at the air extraction ports of the first fan 31, the second fan 34 and the third fan 42. By controlling the opening and closing of each pneumatic valve, the drying chamber 14 and the curing chamber 16 can be controlled to be used separately or simultaneously.
[0029] The top of the drying chamber 14 and the curing chamber 16 is respectively provided with a conveying track for hoisting the workpiece. The conveying track of the drying chamber 14 moves from one end to the other end of the drying chamber 14 and is discharged. The conveying track of the curing chamber 16 moves from one end to the other end of the curing chamber 16, is folded back to the initial end at the end of the other end, and is discharged.
[0030] As a complete coating production line, there is also a coating process construction space which is arranged side by side beside the curing chamber 16, i.e. the drying chamber 14 and the coating chamber are arranged side by side at two sides of the curing chamber 16.
[0031] The working principle of the embodiment is as follows:
[0032] When only the drying chamber 14 is used, the pneumatic valve of the third fan 42 is closed, the channel of the large fan connected to the curing chamber 16 is closed. The pneumatic valves of the first fan 31 and the second fan 34 are started, the airflow channels of the first fan 31 and the second fan 34 are opened or kept. Only the first fan 31 and the second fan 34 are started, the airflow circulation in the drying chamber 14 can work alone, the heat of the combustion furnace 20 enters the drying chamber 14 through the drying heat delivery pipeline 51 to dry the hoisted workpiece. The third fan 42 of the curing chamber 16 keeps closed and does not affect the drying operation.
[0033] When only the curing chamber 16 is used, the pneumatic valves of the first fan 31 and the second fan 34 are closed, the channel of the small fan connected to the drying chamber 14 is closed. The pneumatic valve of the third fan 42 is started, the channel of the third fan 42 of the curing chamber 16 is opened. At this time, the third fan 42 is started to provide the necessary strong airflow into the curing chamber 16 for curing operation, the heat of the combustion furnace 20 enters the drying chamber 14 through the curing heat delivery pipeline 56 to cure the hoisted workpiece. The fan of the drying furnace is not started any more to avoid unnecessary energy consumption.
[0034] When the drying chamber 14 and the curing chamber 16 are used at the same time, the first fan 31, the second fan 34 are started and the pneumatic valve of the third fan 42 is closed, the heat of the combustion furnace 20 enters the drying chamber 14 and the curing chamber 16 through the drying heat delivery pipeline 51 and the curing heat delivery pipeline 56 respectively to dry the workpiece hoisted in the drying chamber 14 and to cure the workpiece hoisted in the curing chamber 16.
[0035] Compared with the prior art, the embodiment only adopts one drying and curing furnace shell and one combustion furnace, the temperature of the drying chamber and the curing chamber can be controlled separately. When drying, only the drying chamber can be started, when curing, only the curing chamber can be started. Moreover, when the temperature in the drying chamber or the curing chamber reaches the set temperature, the heating can be stopped to keep the temperature, and when the temperature deviates from the set temperature, the heating is started again. The combination can make the heating efficiency of the combustion furnace higher and more energy-saving, and the energy consumption can be reduced by 15% to 20% compared with the prior art.
[0036] The above implementation is only the preferred implementation of the present application, and cannot be used to limit the scope of the present application. For those skilled in the art, it can be understood that the embodiments can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. An energy-saving drying and curing oven applied to a painting production line, characterized by, The application relates to a drying and curing furnace shell, a combustion furnace, a drying fan, a curing fan and a blowing pipeline, wherein the drying and curing furnace shell is a long tunnel structure, which is divided into left and right two independent channels along a tunnel axis by a partition plate, and the two channels are drying and curing chambers respectively; the drying fan comprises a first fan, and the curing fan comprises a third fan; the blowing pipeline comprises a drying and heating pipeline, a drying and cold return pipeline, a curing and heating pipeline and a curing and cold return pipeline; the drying and heating pipeline and the drying and cold return pipeline are communicated with the combustion furnace and the drying chamber, and the first fan is arranged on the drying and heating pipeline; the curing and heating pipeline and the curing and cold return pipeline are communicated with the combustion furnace and the curing chamber, and the third fan is arranged on the curing and heating pipeline.
2. The energy-saving drying and curing oven for use in a painting production line according to claim 1, wherein The drying fan further comprises a second fan, which is arranged on the drying and cold return pipeline.
3. The energy-saving drying and curing oven for use in a painting production line according to claim 2, wherein The power of the first fan and the second fan is 4kw, and the power of the third fan is 7.5kw.
4. The energy-saving drying and curing oven for use in a painting production line according to claim 2, wherein The first fan, the second fan and the third fan are respectively provided with pneumatic valves at air exhaust port ends.
5. The energy-saving drying and curing oven for use in a painting production line according to claim 1, wherein The bottoms of the drying and curing chambers are respectively paved with air channels, air outlets are arranged at the two sides of the air channels in a spaced mode, the drying and heating pipeline is communicated with the air channel of the drying chamber, and the curing and heating pipeline is communicated with the air channel of the curing chamber.
6. The energy-saving drying and curing oven for use in a painting production line according to claim 1, wherein The tops of the drying and curing chambers are respectively provided with conveying tracks for hoisting workpieces.
7. The energy-saving drying and curing oven for use in a painting production line according to claim 1, wherein Temperature sensors are arranged in the drying and curing chambers respectively.
8. The energy-saving drying and curing oven for use in a painting production line according to claim 1, wherein The partition plate is an iron plate or a heat preservation plate.
9. The energy-saving drying and curing oven for use in a painting production line according to claim 1, wherein The combustion furnace is arranged below the drying and curing furnace shell.