A paper-faced gypsum board drying system

Abstract

The utility model relates to paper -faced gypsum board drying technical field especially for a kind of paper -faced gypsum board drying system, including combustion chamber and drying channel;Combustion chamber is equipped with burner in its inside, and burner is connected with gas supply pipe, and fan is introduced into the combustion chamber by third pipeline with external air;Combustion chamber and drying channel are connected by first pipeline, and first pipeline is used to introduce the high-temperature gas generated after gas combustion into the inside of drying channel, to dry paper -faced gypsum board inside drying channel, and the side of drying channel away from first pipeline is connected with second pipeline, the outside of third pipeline is provided with sealing box, the sealing box is connected with fifth pipeline, and the other side is connected with fourth pipeline, and external air and gas in second pipeline are transported to the inside of sealing box by fourth pipeline according to predetermined proportion by suction pump.The utility model can improve the reaction rate and combustion efficiency of natural gas.

Description

Technical Field

[0001] This utility model relates to the field of paper-faced gypsum board drying technology, specifically a paper-faced gypsum board drying system. Background Technology

[0002] Drying paper-faced gypsum board is a core step in the production process, directly affecting product performance and quality. Its principle is based on heat and mass transfer; by controlling temperature, humidity, and airflow, uniform evaporation of moisture within the gypsum board is achieved.

[0003] Chinese patent document CN201155906Y discloses a gas-fired drying system for paper-faced gypsum board, which utilizes the heating of natural gas to dry the gypsum board, making it clean and environmentally friendly. Although this patent document utilizes the heat generated by burning natural gas to dry the paper-faced gypsum board, it still has the following shortcomings in practical use:

[0004] It cannot preheat the air entering the combustion chamber. The low temperature of the air hinders the combustion of natural gas, for example, it will lead to low combustion efficiency and a reduced reaction rate. Utility Model Content

[0005] The purpose of this invention is to provide a paper-faced gypsum board drying system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A paper-faced gypsum board drying system includes a combustion chamber and a drying channel. A burner is installed inside the combustion chamber, and a gas supply pipe is connected to the burner. A fan introduces external air into the combustion chamber through a third pipe. The combustion chamber and the drying channel are connected by a first pipe, which introduces high-temperature gas generated after combustion into the drying channel to dry the paper-faced gypsum board inside. A second pipe connects to the side of the drying channel away from the first pipe. A sealed box is installed outside the third pipe, connected to a fifth pipe, and a fourth pipe connects to the other side. An air pump delivers external air and gas from the second and third pipes in a predetermined ratio through the fourth pipe to the sealed box for preheating the air in the third pipe.

[0008] Preferably, the air inlet of the air pump is connected to a second air inlet pipe, the second air inlet pipe is connected to a first air inlet pipe, a first flow regulating valve is installed on the first air inlet pipe, and a second flow regulating valve is installed on the second air inlet pipe.

[0009] Preferably, the portion of the third pipe located inside the sealed box is S-shaped, the fourth pipe is fixedly connected to the bottom of the sealed box, and the fifth pipe is connected to the top of the sealed box.

[0010] Preferably, a temperature sensor is installed on the portion of the third pipe located between the combustion chamber and the sealing box.

[0011] Preferably, the fourth pipe is spiral-shaped.

[0012] Preferably, a dehumidifier is installed on the second pipe to remove moisture from the gas inside the second pipe.

[0013] Preferably, a mixing chamber is installed on the first pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a sealed box, an air pump, a fourth pipe, and a fifth pipe, with a third pipe penetrating the sealed box. External air and gas from the second pipe are then delivered into the sealed box in a predetermined ratio, thereby controlling the temperature inside the sealed box. Since the third pipe exchanges heat with the gas inside the sealed box, the temperature of the air in the third pipe can be controlled, allowing the third pipe to deliver air at a predetermined temperature into the combustion chamber, thus improving the reaction rate and combustion efficiency of natural gas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall system layout of this utility model.

[0017] In the diagram: 1. Combustion chamber; 2. Burner; 3. First pipe; 4. Drying channel; 5. Second pipe; 6. Dehumidifier; 7. Gas supply pipe; 8. Mixing chamber; 9. Fan; 10. Third pipe; 11. Sealing box; 12. Temperature sensor; 13. Air pump; 14. Fourth pipe; 15. First air inlet pipe; 16. Second air inlet pipe; 17. First flow regulating valve; 18. Second flow regulating valve; 19. Fifth pipe. 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] Please see Figure 1 This utility model provides a technical solution:

[0020] A paper-faced gypsum board drying system includes a combustion chamber 1 and a drying channel 4. A burner 2 is installed inside the combustion chamber 1 for burning natural gas. A gas supply pipe 7 is connected to the burner 2 to deliver natural gas into its interior. A fan 9 introduces external air into the combustion chamber 1 through a third pipe 10, providing oxygen for the combustion of natural gas. The combustion chamber 1 and the drying channel 4 are connected by a first pipe 3, which introduces the high-temperature gas generated after combustion into the drying channel 4 to dry the paper-faced gypsum board inside. A second pipe 5 is connected to the side of the drying channel 4 away from the first pipe 3, discharging the gas that has absorbed moisture from the paper-faced gypsum board. The fan 9 can be a model such as FVK730-2H37 from Jiangsu Fengweike Intelligent Equipment Co., Ltd. All of the above are existing technologies and will not be elaborated further.

[0021] Unlike existing technologies, a sealed box 11 is provided on the outside of the third pipe 10. The sealed box 11 is connected to the fifth pipe 19, and on the other side, it is connected to the fourth pipe 14. The air pump 13 delivers external air and gas from the second pipe 5 to the interior of the sealed box 11 through the fourth pipe 14 in a predetermined ratio for preheating the air in the third pipe 10. The air pump 13 can be an RB-71D-3 type air pump from Shanghai Quanfeng Industrial Co., Ltd.

[0022] Furthermore, the fourth pipe 14 is spiral-shaped, which allows the outside air to mix thoroughly with the high-temperature gas in the fifth pipe 19.

[0023] Specifically, the purpose of supplying external air and gas from the second pipe 5 into the sealed box 11 in a predetermined ratio is to control the temperature inside the sealed box 11. Since the third pipe 10 exchanges heat with the gas inside the sealed box 11, the temperature of the air inside the third pipe 10 can be controlled, allowing the third pipe 10 to supply air at a predetermined temperature into the combustion chamber 1, thereby improving the reaction rate and combustion efficiency of natural gas. Furthermore, this method can effectively prevent moisture in the gas discharged through the second pipe 5 from entering the air inside the third pipe 10.

[0024] A dehumidifier 6 is installed on the second pipe 5 to remove moisture from the gas inside the second pipe 5. The dehumidifier 6 can be the MGF-45 model dehumidifier from Xinxiang Mait Filtration Equipment Co., Ltd. A mixing chamber 8 is installed on the first pipe 3 to make the temperature of the gas after combustion more uniform.

[0025] Furthermore, such as Figure 1As shown, the air inlet of the vacuum pump 13 is connected to a second air inlet pipe 16, and the second air inlet pipe 16 is connected to a first air inlet pipe 15. Both the first air inlet pipe 15 and the second air inlet pipe 16 are connected to the air inlet of the vacuum pump 13. A first flow regulating valve 17 is installed on the first air inlet pipe 15, and a second flow regulating valve 18 is installed on the second air inlet pipe 16. By adjusting the first flow regulating valve 17 and the second flow regulating valve 18, the flow rate inside the first air inlet pipe 15 and the second air inlet pipe 16 can be controlled, thereby achieving the purpose of delivering external air and gas in the second pipe 5 to the sealed box 11 in a predetermined ratio. Furthermore, a temperature sensor 12 is installed on the portion of the third pipe 10 located between the combustion chamber 1 and the sealed box 11. Temperature sensor 12 is used to detect the gas temperature inside the third pipe 10. When the gas temperature at this location is less than a predetermined value, the air intake of the second air intake pipe 16 can be reduced by adjusting the second flow regulating valve 18, and the air intake of the first air intake pipe 15 can be increased by adjusting the first flow regulating valve 17, thereby raising the internal temperature of the sealed box 11 and thus increasing the gas temperature inside the third pipe 10. Conversely, when the gas temperature at this location is greater than a predetermined value, the air intake of the second air intake pipe 16 can be increased by adjusting the second flow regulating valve 18, and the air intake of the first air intake pipe 15 can be reduced by adjusting the first flow regulating valve 17, thereby lowering the internal temperature of the sealed box 11 and thus reducing the gas temperature inside the third pipe 10.

[0026] The temperature sensor 12 in the above scheme can be the SBW-11 model from Shenzhen Haohua Sensor Technology Co., Ltd.; the first flow regulating valve 17 and the second flow regulating valve 18 can be the NK-AB-7580 model from Odenok Industrial (Xiamen) Co., Ltd.

[0027] Those skilled in the art can adjust the internal temperature of the sealed box 11 using existing PLC controllers and other equipment, based on the above description, which will not be elaborated here.

[0028] In order to increase the heat exchange area between the air inside the third pipe 10 and the inside of the sealed box 11, in this embodiment, the part of the third pipe 10 located inside the sealed box 11 is S-shaped, the fourth pipe 14 is fixedly connected to the bottom of the sealed box 11, and the fifth pipe 19 is connected to the top of the sealed box 11.

[0029] 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 paper-faced gypsum board drying system, comprising a combustion chamber and a drying channel; a burner is installed inside the combustion chamber, and a gas supply pipe is connected to the burner; a fan introduces external air into the combustion chamber through a third pipe; the combustion chamber and the drying channel are connected by a first pipe, the first pipe being used to introduce high-temperature gas generated after the combustion of gas into the interior of the drying channel to dry the paper-faced gypsum board inside the drying channel; a second pipe is connected to the side of the drying channel away from the first pipe, characterized in that... A sealed box is provided on the outside of the third pipe. The sealed box is connected to the fifth pipe and the other side is connected to the fourth pipe. The air pump delivers external air and gas in the second pipe to the inside of the sealed box through the fourth pipe in a predetermined ratio to preheat the air in the third pipe.

2. The paper-faced gypsum board drying system according to claim 1, characterized in that, The air pump has a second air inlet pipe connected to its air inlet, and a first air inlet pipe connected to the second air inlet pipe. A first flow regulating valve is installed on the first air inlet pipe, and a second flow regulating valve is installed on the second air inlet pipe.

3. The paper-faced gypsum board drying system according to claim 1, characterized in that, The third pipe is S-shaped in the part inside the sealed box, the fourth pipe is fixedly connected to the bottom of the sealed box, and the fifth pipe is connected to the top of the sealed box.

4. The paper-faced gypsum board drying system according to claim 1, characterized in that, A temperature sensor is installed on the portion of the third pipe located between the combustion chamber and the sealed box.

5. A paper-faced gypsum board drying system according to claim 1, characterized in that, The fourth pipe is spiral-shaped.

6. The paper-faced gypsum board drying system according to claim 1, characterized in that, A dehumidifier is installed on the second pipe to remove moisture from the gas inside the second pipe.

7. The paper-faced gypsum board drying system according to claim 1, characterized in that, A mixing chamber is installed on the first pipe.

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