Precise temperature control type gas forging heating furnace

Abstract

The utility model discloses a precise temperature control type fuel gas forging heating furnace, and belongs to the technical field of forging heating furnaces, the precise temperature control type fuel gas forging heating furnace comprises a combustion furnace, an air filter box is arranged on one side of the combustion furnace, an air outlet of the air filter box is in sealed connection with an oxygen inlet of the combustion furnace through an air inlet pipe, and an air blower is fixedly installed at an air inlet of the air filter box; according to the device, fire is sprayed into the combustion furnace through the gas pipe, the control valve and the fire spraying head, and after the fixing frame is inserted into the mounting groove, the fixing frame is limited and fixed through the limiting unit, so that the filter cotton is mounted in the air filter box; air conveyed by the air blower can be filtered and adsorbed through the air filtering box, impurities such as dust in the air are removed, it is ensured that the air entering the combustion furnace through the air inlet pipe does not contain impurities, and the situation that a large amount of dust adheres to the inner wall of the air inlet pipe, and the air inlet amount of the air inlet pipe is affected is avoided; and sufficient combustion of gas in the combustion furnace is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of forging heating furnaces, and in particular to a precision temperature-controlled gas-fired forging heating furnace. Background Art

[0002] There are many types of forging heating furnaces. According to the different power sources used, forging heating furnaces can be divided into two categories: flame heating furnaces and electric heating furnaces. Forging heating furnaces are widely used for forging heating, and are used for heat penetration, temperature replenishment, online heating of blue quenched materials, local heating, online forging of metal materials (such as precision forging of gears, half-axle connecting rods, bearings, etc.), extrusion, hot rolling, heating before shearing, spray heating, hot assembly, and overall quenching, annealing, and tempering of metal materials.

[0003] In the patent document with the published announcement number CN220480148U, a precision temperature-controlled gas forging heating furnace is provided. In this published patent document, gas is provided through a gas pipeline to enable the flame head to spray fire. The internal temperature sensor detects the internal temperature and displays it through the temperature display screen. When the internal temperature is higher than the preset value, the control panel intelligently controls the control valve, and the control valve reduces the airflow of the gas pipe, thereby reducing the firepower of the flame head, thereby realizing the control of the internal temperature of the heating furnace; however, in the above-mentioned published patent document, the air flow required for combustion is directly transported to the interior of the heating furnace through an oxygen pipeline. Due to the long-term entry of air into the interior of the air inlet duct, and impurities and dust mixed in the air, a large amount of dust will appear in the air inlet duct, which will not only affect the air intake of the burner, but also cause incomplete combustion of the gas, which will lead to waste of resources. Utility Model Content

[0004] In response to the shortcomings of the prior art, the present application provides a precision temperature-controlled gas forging heating furnace, which overcomes the shortcomings of the prior art and aims to solve the problem that a large amount of dust will appear in the air inlet duct due to the long-term entry of air and impurities and dust in the air, which not only affects the air intake of the burner, but also causes incomplete combustion of the gas, thereby leading to a waste of resources.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a precision temperature-controlled gas forging heating furnace, including a combustion furnace, an air filter box is provided on one side of the combustion furnace, the air outlet of the air filter box is sealed and connected to the oxygen inlet of the combustion furnace through an air inlet pipe, a blower is fixedly installed at the air inlet of the air filter box, an installation groove is fixedly opened on the outer wall of one side of the air filter box, a fixed frame is slidably inserted in the interior of the installation groove, filter cotton is fixedly installed in the interior of the fixed frame, the upper surface of the air filter box is located directly above the installation groove, and two limit units for limiting and fixing the fixed frame are symmetrically installed, the top of the combustion furnace is located on one side of the air inlet pipe and is fixedly connected to a gas pipe, the lower end of the gas pipe is located inside the combustion furnace and is fixedly connected to a control valve, and a flame head is fixedly installed at the bottom of the control valve.

[0006] By adopting the above technical scheme, flame is sprayed into the interior of the combustion furnace through the gas pipe, the control valve and the flame head. After the fixed frame is inserted into the interior of the installation groove, the fixed frame is limited and fixed by the limiting unit, so that the filter cotton can be installed into the interior of the air filter box. That is, the air delivered by the blower can be filtered and adsorbed through the air filter box to remove dust and other impurities in the air, ensuring that the air entering the combustion furnace through the air inlet pipe is free of impurities, avoiding a large amount of dust adhering to the inner wall of the air inlet pipe and affecting the air intake of the air inlet pipe, ensuring that the gas inside the combustion furnace can be fully burned.

[0007] As a preferred technical solution of the present application, the limiting unit includes a cylinder fixedly mounted on the upper surface of the air filter box, a limiting rod is slidably inserted into the interior of the cylinder, the lower end of the limiting rod is slidably inserted into the interior of the fixed frame, the upper end of the limiting rod slides through the cylinder and is fixedly connected to the limiting block, a movable ring is fixedly sleeved on the outer surface of the limiting rod near the lower end, and the upper surface of the movable ring is fixedly connected to the inner top wall of the cylinder through a spring.

[0008] By adopting the above technical solution, when the filter cotton needs to be replaced, the limit block is pulled to drive the limit rod to move upward and be drawn out from the top of the fixed frame and retracted into the inside of the cylinder, so that the fixed frame can be drawn out from the inside of the installation groove to clean and replace the filter cotton. When the fixed frame is reinserted into the inside of the installation groove, the limit block is released, and the movable ring drives the limit rod to move downward under the action of the spring and is inserted into the inside of the fixed frame to fix it. That is, the fixed frame can be quickly installed and disassembled through the limit unit to facilitate cleaning and replacement of the filter cotton.

[0009] As a preferred technical solution of the present application, a limiting hole matched with the limiting rod is opened on the top of the fixing frame, the lower end of the limiting rod is located inside the limiting hole, and a handle is fixedly connected to the outer wall of one side of the fixing frame.

[0010] By adopting the above technical solution, necessary conditions are provided for the limiting rod to be inserted into the inside of the limiting hole, and the provision of a handle makes it convenient for workers to take the fixing frame.

[0011] As a preferred technical solution of the present application, the filter cotton is composed of non-woven filter cotton, fiber adsorption net and activated carbon adsorption cotton, and the non-woven filter cotton, fiber adsorption net and activated carbon adsorption cotton are bonded together by epoxy glue.

[0012] By adopting the above technical solution, the filtering effect of the filter cotton is ensured.

[0013] As a preferred technical solution of the present application, a furnace opening is opened on the outer wall of one side of the combustion furnace, a sealing door is hingedly connected to the outer wall of the combustion furnace on one side of the furnace opening, a partition is fixedly installed inside the combustion furnace below the furnace opening, and the sealing door and the partition are both made of heat-insulating material.

[0014] By adopting the above technical solution, partitions and sealed doors are provided for heat insulation, thereby preventing the internal heat of the combustion furnace from overflowing.

[0015] As a preferred technical solution of the present application, a driving motor is fixedly installed on the inner bottom wall of the combustion furnace, and the output end of the driving motor passes through the partition and is fixedly connected to a turntable. A refrigerator is fixedly installed on the inner bottom wall of the combustion furnace on one side of the driving motor.

[0016] By adopting the above technical solution, the turntable is driven to rotate by the driving motor, so that the flame head can heat the forged object above the turntable in all directions, and the driving motor is cooled by the refrigerator to avoid excessive internal temperature of the driving motor, thereby ensuring that the driving motor can work normally.

[0017] As a preferred technical solution of the present application, a control module is fixedly installed on the outer wall of the combustion furnace close to the air filter box, a temperature sensor is fixedly installed on the inner wall of the combustion furnace, and the control module is connected to the temperature sensor and the control valve through electrical signals.

[0018] By adopting the above technical solution, the internal temperature of the combustion furnace is monitored by a temperature sensor. When the internal temperature of the combustion furnace is higher than a preset value, the control module controls the control valve to reduce the airflow of the gas pipe, thereby reducing the firepower of the flame head, thereby achieving control over the internal temperature of the combustion furnace.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] In the utility model, flame is sprayed into the interior of the combustion furnace through the provided gas pipe, control valve and flame head, and after the fixing frame is inserted into the interior of the installation groove, the fixing frame is limited and fixed by the limiting unit, so that the filter cotton can be installed into the interior of the air filter box. That is, the air delivered by the blower can be filtered and adsorbed through the air filter box to remove dust and other impurities in the air, thereby ensuring that the air entering the combustion furnace through the air inlet pipe is free of impurities, avoiding a large amount of dust adhering to the inner wall of the air inlet pipe and affecting the air intake of the air inlet pipe, thereby ensuring that the gas inside the combustion furnace can be fully burned.

[0021] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope thereby. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the internal structure of the combustion furnace of the present application;

[0025] Figure 3 This is a schematic diagram of the internal structure of the air filter box of this application;

[0026] Figure 4 For this application Figure 3 A magnified schematic diagram of point A;

[0027] Figure 5 This is a schematic diagram of the internal structure of the filter cotton of the present application.

[0028] In the figure: 1. combustion furnace; 2. air inlet pipe; 3. air filter box; 4. blower; 5. mounting slot; 6. fixing frame; 7. filter cotton; 71. non-woven filter cotton; 72. fiber adsorption net; 73. activated carbon adsorption cotton; 8. limiting unit; 81. cylinder; 82. limiting rod; 83. moving ring; 84. spring; 85. limiting block; 9. limiting hole; 10. handle; 11. furnace mouth; 12. partition; 13. gas pipe; 14. control valve; 15. flame head; 16. drive motor; 17. turntable; 18. refrigerator; 19. sealing door; 20. control module; 21. temperature sensor. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] like Figure 1 - Figure 5 As shown, the precision temperature-controlled gas forging heating furnace provided in this embodiment includes a combustion furnace 1, an air filter box 3 is arranged on one side of the combustion furnace 1, the air outlet of the air filter box 3 is sealed and connected to the oxygen inlet of the combustion furnace 1 through an air inlet pipe 2, a blower 4 is fixedly installed at the air inlet of the air filter box 3, a mounting groove 5 is fixedly opened on the outer wall of one side of the air filter box 3, a fixing frame 6 is slidably inserted inside the mounting groove 5, a filter cotton 7 is fixedly installed inside the fixing frame 6, the upper surface of the air filter box 3 is located directly above the mounting groove 5, and two limiting units 8 for limiting and fixing the fixing frame 6 are symmetrically installed, the top of the combustion furnace 1 is located on one side of the air inlet pipe 2 and is fixedly connected to a gas pipe 13, and the lower end of the gas pipe 13 is located at the combustion furnace 1 is fixedly connected with a control valve 14, and a flame head 15 is fixedly installed at the bottom of the control valve 14. When in use, fire is sprayed into the interior of the combustion furnace 1 through the gas pipe 13, the control valve 14 and the flame head 15. After the fixing frame 6 is inserted into the interior of the mounting groove 5, the fixing frame 6 is limited and fixed by the limiting unit 8, so that the filter cotton 7 can be installed into the interior of the air filter box 3, that is, the air delivered by the blower 4 can be filtered and adsorbed through the air filter box 3 to remove dust and other impurities in the air, ensure that the air entering the combustion furnace 1 through the air inlet pipe 2 is free of impurities, avoid a large amount of dust adhering to the inner wall of the air inlet pipe 2 and affecting the air intake of the air inlet pipe 2, and ensure that the gas inside the combustion furnace 1 can be fully burned.

[0031] In this embodiment, if Figure 3 and 4 As shown, the limiting unit 8 includes a cylinder 81 fixedly mounted on the upper surface of the air filter box 3, a limiting rod 82 is slidably inserted into the cylinder 81, the lower end of the limiting rod 82 is slidably inserted into the interior of the fixed frame 6, the upper end of the limiting rod 82 slides through the cylinder 81 and is fixedly connected to the limiting block 85, the outer surface of the limiting rod 82 is fixedly sleeved with a moving ring 83 near the lower end, the upper surface of the moving ring 83 is fixedly connected to the inner top wall of the cylinder 81 through a spring 84, and when in use, when the filter cotton 7 needs to be replaced, it can be replaced by pulling The movable limit block 85 drives the limit rod 82 to move upward and be pulled out from the top of the fixed frame 6 and retracted into the inside of the cylinder 81, so that the fixed frame 6 can be pulled out from the inside of the installation groove 5 to clean and replace the filter cotton 7. When the fixed frame 6 is reinserted into the inside of the installation groove 5, the limit block 85 is released, and the movable ring 83 drives the limit rod 82 to move downward under the action of the spring 84 and be inserted into the inside of the fixed frame 6 to fix it. That is, the fixed frame 6 can be quickly installed and disassembled through the limit unit 8 to clean and replace the filter cotton 7.

[0032] In this embodiment, if Figure 5 As shown, a limiting hole 9 matched with the limiting rod 82 is opened on the top of the fixed frame 6, and the lower end of the limiting rod 82 is inside the limiting hole 9. A handle 10 is fixedly connected to the outer wall of one side of the fixed frame 6. When in use, necessary conditions are provided for the limiting rod 82 to be inserted into the limiting hole 9. The handle 10 is provided to facilitate the staff to take the fixed frame 6.

[0033] In this embodiment, if Figure 5 As shown, the filter cotton 7 is composed of a non-woven filter cotton 71, a fiber adsorption net 72, and an activated carbon adsorption cotton 73, and the non-woven filter cotton 71, the fiber adsorption net 72, and the activated carbon adsorption cotton 73 are bonded together by epoxy glue to ensure the filtering effect of the filter cotton 7 when in use.

[0034] In this embodiment, if Figure 1 and 2 As shown, a furnace opening 11 is provided on one side outer wall of the combustion furnace 1, a sealing door 19 is hingedly connected to the outer wall of the combustion furnace 1 on one side of the furnace opening 11, a partition 12 is fixedly installed inside the combustion furnace 1 below the furnace opening 11, and the sealing door 19 and the partition 12 are both made of heat insulating materials. When in use, the partition 12 and the sealing door 19 are provided for insulation to prevent the internal heat of the combustion furnace 1 from overflowing.

[0035] In this embodiment, if Figure 2 As shown, a driving motor 16 is fixedly installed on the inner bottom wall of the combustion furnace 1, and the output end of the driving motor 16 passes through the partition 12 and is fixedly connected to a turntable 17. A refrigerator 18 is fixedly installed on the inner bottom wall of the combustion furnace 1 on one side of the driving motor 16. When in use, the turntable 17 is driven to rotate by the driving motor 16, so that the flame head 15 can heat the forged object above the turntable 17 in all directions. The driving motor 16 is cooled by the refrigerator 18 to avoid the internal temperature of the driving motor 16 being too high, thereby ensuring that the driving motor 16 can work normally.

[0036] In this embodiment, if Figure 1 and 2 As shown, a control module 20 is fixedly installed on the outer wall of one side of the combustion furnace 1 close to the air filter box 3, and a temperature sensor 21 is fixedly installed on the inner wall of the combustion furnace 1. The control module 20 is connected to the temperature sensor 21 and the control valve 14 through electrical signals. When in use, the internal temperature of the combustion furnace 1 is monitored by the temperature sensor 21. When the internal temperature of the combustion furnace 1 is higher than the preset value, the control module 20 controls the control valve 14 to reduce the airflow of the gas pipe 13, thereby reducing the firepower of the flame head 15, thereby realizing the control and management of the internal temperature of the combustion furnace 1.

[0037] The working principle of the utility model is as follows: when using the precise temperature-controlled gas forging heating furnace of the present application, the gas pipe 13, the control valve 14 and the flame head 15 are used to spray fire into the interior of the combustion furnace 1, and after the fixing frame 6 is inserted into the interior of the mounting groove 5, the fixing frame 6 is limited and fixed by the limiting unit 8, so that the filter cotton 7 can be installed into the interior of the air filter box 3, that is, the air delivered by the blower 4 can be filtered and adsorbed through the air filter box 3 to remove dust and other impurities in the air, ensuring that the air entering the combustion furnace 1 through the air inlet pipe 2 is free of impurities, and avoiding a large amount of dust adhering to the inner wall of the air inlet pipe 2 and affecting the air inlet pipe 2. The air intake volume ensures that the gas inside the combustion furnace 1 can be fully burned. When the filter cotton 7 needs to be replaced, the limit block 85 is pulled to drive the limit rod 82 to move upward and be withdrawn from the top of the fixed frame 6 to the inside of the cylinder 81, so that the fixed frame 6 can be withdrawn from the inside of the mounting groove 5 to clean and replace the filter cotton 7. When the fixed frame 6 is re-inserted into the inside of the mounting groove 5, the limit block 85 is released, and the movable ring 83 drives the limit rod 82 to move downward under the action of the spring 84 and is inserted into the inside of the fixed frame 6 to fix it. That is, the fixed frame 6 can be quickly installed and disassembled through the limit unit 8 to facilitate cleaning and replacement of the filter cotton 7.

[0038] The present invention is described above in conjunction with specific implementation methods, but those skilled in the art should be aware that these descriptions are exemplary and are not limitations on the scope of protection of the present invention. Those skilled in the art can make various variations and modifications to the present invention based on the spirit and principles of the present invention, and these variations and modifications are also within the scope of the present invention.

Claims

1. A precision temperature-controlled gas-fired forging heating furnace, comprising a combustion furnace (1), characterized in that: An air filter box (3) is provided on one side of the combustion furnace (1); an air outlet of the air filter box (3) is sealedly connected to the oxygen inlet of the combustion furnace (1) through an air inlet pipe (2); a blower (4) is fixedly installed on the air inlet of the air filter box (3); an installation groove (5) is fixedly opened on the outer wall of one side of the air filter box (3); a fixing frame (6) is slidably inserted into the interior of the installation groove (5); a filter cotton (7) is fixedly installed inside the fixing frame (6); two limiting units (8) for limiting and fixing the fixing frame (6) are symmetrically installed on the upper surface of the air filter box (3) located directly above the installation groove (5); a gas pipe (13) is fixedly connected to the top of the combustion furnace (1) located on one side of the air inlet pipe (2); a control valve (14) is fixedly connected to the lower end of the gas pipe (13) located inside the combustion furnace (1); a flame head (15) is fixedly installed at the bottom of the control valve (14).

2. The precise temperature-controlled gas-fired forging heating furnace according to claim 1, characterized in that: The limiting unit (8) comprises a cylinder (81) fixedly mounted on the upper surface of the air filter box (3); a limiting rod (82) is slidably inserted into the interior of the cylinder (81); the lower end of the limiting rod (82) is slidably inserted into the interior of the fixed frame (6); the upper end of the limiting rod (82) slides through the cylinder (81) and is fixedly connected to a limiting block (85); a movable ring (83) is fixedly sleeved on the outer surface of the limiting rod (82) near the lower end; and the upper surface of the movable ring (83) is fixedly connected to the inner top wall of the cylinder (81) via a spring (84).

3. The precise temperature-controlled gas-fired forging heating furnace according to claim 2, characterized in that: A limiting hole (9) adapted to the limiting rod (82) is provided at the top of the fixing frame (6); the lower end of the limiting rod (82) is located inside the limiting hole (9); and a handle (10) is fixedly connected to an outer wall on one side of the fixing frame (6).

4. The precise temperature-controlled gas-fired forging heating furnace according to claim 1, characterized in that: The filter cotton (7) is composed of a non-woven filter cotton (71), a fiber adsorption net (72), and an activated carbon adsorption cotton (73), and the non-woven filter cotton (71), the fiber adsorption net (72), and the activated carbon adsorption cotton (73) are bonded together by epoxy glue.

5. The precise temperature-controlled gas-fired forging heating furnace according to claim 1, characterized in that: A furnace opening (11) is formed on one side of the outer wall of the combustion furnace (1); a sealing door (19) is hingedly connected to the outer wall of the combustion furnace (1) on one side of the furnace opening (11); a partition (12) is fixedly installed inside the combustion furnace (1) below the furnace opening (11); and the sealing door (19) and the partition (12) are both made of refractory materials.

6. The precise temperature-controlled gas-fired forging heating furnace according to claim 5, characterized in that: A drive motor (16) is fixedly mounted on the inner bottom wall of the combustion furnace (1); an output end of the drive motor (16) passes through the partition (12) and is fixedly connected to a turntable (17); and a refrigerator (18) is fixedly mounted on the inner bottom wall of the combustion furnace (1) on one side of the drive motor (16).

7. The precise temperature-controlled gas-fired forging heating furnace according to claim 1, characterized in that: A control module (20) is fixedly mounted on the outer wall of the combustion furnace (1) close to the air filter box (3), and a temperature sensor (21) is fixedly mounted on the inner wall of the combustion furnace (1). The control module (20) is connected to the temperature sensor (21) and the control valve (14) via electrical signals.

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