A steaming and drying furnace

Abstract

The utility model discloses a steaming and drying furnace, comprising a drying furnace body, a metal inner furnace body and a metal outer furnace body. The metal outer furnace body is fixed outside the metal inner furnace body of the drying furnace body, and also comprises a temperature return mechanism. The temperature return mechanism comprises a folded heat conducting pipe, a heat preservation plate, an exhaust pipe, an air duct, a plug-in pipe, an air guide tube, a duct fan, an air duct and a bottom connecting plate. After the heat preservation plate is arranged between the metal inner furnace body and the metal outer furnace body of the drying furnace body, the folded heat conducting pipe of the temperature return mechanism is arranged between the heat preservation plate and the metal inner furnace body. The temperature return mechanism can lead the moist and hot air in the metal inner furnace body to the folded heat conducting pipe, and the flat tube body folded back at the folded heat conducting pipe can lean against the surface of the metal inner furnace body, so that the temperature of the metal inner furnace body is heated by heat conduction, so that the drying furnace body can heat its own metal inner furnace body at the same time when discharging the moist and hot air, thereby improving the drying efficiency in its own metal inner furnace body to a limited extent.

Description

Technical Field

[0001] The utility model relates to the technical field of drying furnaces, in particular to a steaming and drying furnace. Background Art

[0002] The steaming furnace is a common heat treatment equipment, mainly used for steaming and heating in the food, chemical, metallurgical and other industries. It usually consists of a steam generator and a heating furnace, in which the steam transfers heat to the food or other materials by conduction, evaporating the surface moisture, dehydrating and drying the inside of the material, and finally achieving the desired degree of dryness. The temperature and pressure of the steam can be adjusted according to the characteristics of the material to achieve the best drying effect.

[0003] When the steam-drying furnace of the prior art is drying materials, steam usually forms hot air with the moisture removed from the materials and rises to the top of the drying furnace. The hot air with moisture is usually discharged outwards through a pipeline structure, resulting in a large amount of heat energy being wasted in the hot air discharged from the drying furnace. In addition, the heat discharge loss of the drying furnace will also be caused after the hot air from the drying furnace is discharged, thereby affecting the thermal drying efficiency of the drying furnace. Therefore, we propose a steam-drying furnace. Utility Model Content

[0004] The main purpose of the utility model is to provide a cooking and drying furnace. After a heat preservation plate is arranged between the metal inner furnace body and the metal outer furnace body of the drying furnace body, a return heat pipe of a temperature recovery mechanism is arranged between the heat preservation plate and the metal inner furnace body. The temperature recovery mechanism can guide the moist and hot air in the metal inner furnace body to the return heat pipe, and the flat tube body returned and distributed at the return heat pipe can lean against the surface of the metal inner furnace body, so that the temperature of the metal inner furnace body is heated by heat conduction, so that the drying furnace body can heat its own metal inner furnace body at the same time when discharging the moist and hot air, thereby improving the drying efficiency in its own metal inner furnace body to a limited extent; and when the drying furnace body discharges the moist and hot air in the furnace cavity above the metal inner furnace body, the drying furnace body will not generate heat loss problem, so that the moist and hot air generated by the drying furnace body can be effectively used for heating and heat preservation of its own metal inner furnace body, ensuring the return temperature and drying processing of materials at the drying furnace body, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A steaming and drying furnace comprises a drying furnace body, a metal inner furnace body and a metal outer furnace body, wherein the metal inner furnace body of the drying furnace body is fixed with a metal outer furnace body, and further comprises a temperature return mechanism, wherein the temperature return mechanism comprises a folded heat conducting pipe, a heat preservation plate, an exhaust pipe, an air duct, a plug-in pipe, an air guide tube, a duct fan, an air duct and a bottom connecting plate, a heat preservation plate is filled between the metal inner furnace body and the metal outer furnace body, and a folded heat conducting pipe is inserted between the heat preservation plate and the metal inner furnace body, and exhaust pipes and air ducts which are interconnected with the tube cavities of the folded heat conducting pipes are respectively welded on the surfaces of the tube bodies at both ends of the folded heat conducting pipes Tube, and the exhaust pipe and the induced air pipe penetrate the insulation board and the metal outer furnace body to extend outward, a connecting pipe is inserted in the tube cavity of the induced air pipe, and the other end of the connecting pipe away from the induced air pipe is welded to the cylinder body of the air duct, a bottom connecting plate is welded below the tube bodies of the air duct and the induced air duct, and a duct fan is interconnected between the air duct and the induced air duct, a machine base of the duct fan and the bottom connecting plate of the air duct and the induced air duct are screwed with bolts, and side openings for inserting the induced air duct are penetrated through the metal inner furnace body, the insulation board and the metal outer furnace body above the folded heat conducting pipe.

[0007] Furthermore, a rubber ring is bonded to the outer tube wall sleeve of the air duct, and the air duct presses the rubber ring and is inserted into the side opening;

[0008] By adopting the above technical solution, the air duct can be inserted into the side opening with the help of the rubber ring, so that the air duct and the side opening are softly connected and sealed by the rubber ring.

[0009] Furthermore, one end of the plug-in pipe is centrally welded to the central cylinder of the air guide tube;

[0010] By adopting the above technical solution, the connecting pipe is centrally welded at the air guide tube for connection.

[0011] Furthermore, the diameter of the pipe opening of the air duct and the diameter of the tube opening of the air guide tube are the same as the shell cavity diameter of the ducted fan;

[0012] By adopting the above technical solution, the air duct and the air guide tube can be connected to the duct fan.

[0013] Furthermore, the height of the air duct after being welded on the surface of the folded heat conducting pipe is greater than the height of the exhaust pipe after being welded on the surface of the folded heat conducting pipe, and the pipe opening of the air duct exposed from the metal outer furnace body is inserted and connected by interference fit;

[0014] By adopting the above technical solution, the air duct is exposed from the metal outer furnace body, so it is convenient to insert and connect the pipe.

[0015] Furthermore, the tube body of the folded heat-conducting pipe is a folded flat tube body with double-end tube openings closed, and the flat tube body of the folded heat-conducting pipe is inserted between the insulation board and the metal inner furnace body;

[0016] By adopting the above technical solution, the folded flat tube of the folded heat pipe can be placed against the metal inner furnace body, so that the folded heat pipe can heat up the metal inner furnace body after heating up.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a heat preservation plate between the metal inner furnace body and the metal outer furnace body of the drying furnace body, and a return heat conduction pipe of a temperature return mechanism is provided between the heat preservation plate and the metal inner furnace body. The temperature return mechanism can guide the moist and hot air in the metal inner furnace body to the return heat conduction pipe, and the flat tube body distributed in the return heat conduction pipe can lean against the surface of the metal inner furnace body, so that the temperature of the metal inner furnace body is increased by heat conduction, so that the drying furnace body can heat its own metal inner furnace body at the same time when discharging the moist and hot air, thereby improving the drying efficiency in the metal inner furnace body to a certain extent.

[0019] In addition, when the drying furnace body discharges the hot and humid air in the furnace cavity above the metal furnace body, no heat loss problem will occur in the drying furnace body, so that the hot and humid air generated by the drying furnace body can be effectively used for heating and heat preservation of its own metal furnace body, ensuring the temperature recovery and drying processing of the material at the drying furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a cooking and drying furnace.

[0021] Figure 2 The utility model is a schematic diagram of the disassembly of the induced draft duct and the metal outer furnace body of a steaming and drying furnace.

[0022] Figure 3 It is an exploded view of a temperature recovery mechanism of a cooking and drying furnace of the utility model.

[0023] In the figure: 1. Drying furnace body; 2. Metal inner furnace body; 3. Temperature recovery mechanism; 4. Return heat conduction pipe; 5. Insulation board; 6. Metal outer furnace body; 7. Exhaust pipe; 8. Air duct; 9. Connecting pipe; 10. Air guide tube; 11. Duct fan; 12. Air duct; 13. Side opening; 14. Bottom connecting plate; 15. Rubber ring. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figure 1-3As shown, a steaming and drying furnace comprises a drying furnace body 1, a metal inner furnace body 2 and a metal outer furnace body 6, wherein the metal outer furnace body 6 is fixed outside the metal inner furnace body 2 of the drying furnace body 1, and further comprises a temperature return mechanism 3, wherein the temperature return mechanism 3 comprises a folded heat conducting pipe 4, a heat preservation plate 5, an exhaust pipe 7, an air duct 8, a plug-in pipe 9, an air guide tube 10, a duct fan 11, an air duct 12 and a bottom connecting plate 14, the heat preservation plate 5 is filled between the metal inner furnace body 2 and the metal outer furnace body 6, and the folded heat conducting pipe 4 is inserted between the heat preservation plate 5 and the metal inner furnace body 2, and the exhaust pipe 7 and the air duct 8 which are interconnected with the tube cavity of the folded heat conducting pipe 4 are respectively welded on the surfaces of the tube bodies at both ends of the folded heat conducting pipe 4, The exhaust pipe 7 and the induced air pipe 8 penetrate the insulation board 5 and the metal outer furnace body 6 and extend outward. A connecting pipe 9 is inserted in the tube cavity of the induced air pipe 8, and the other end of the connecting pipe 9 away from the induced air pipe 8 is welded to the body of the air guide tube 10. A bottom connecting plate 14 is welded below the tube bodies of the air guide tube 10 and the induced air pipe 12, and a duct fan 11 is interconnected between the air guide tube 10 and the induced air pipe 12. Bolts are screwed between the base of the duct fan 11 and the bottom connecting plate 14 of the air guide tube 10 and the induced air pipe 12. Side openings 13 for inserting the induced air pipe 12 are penetrated through the metal inner furnace body 2, the insulation board 5 and the metal outer furnace body 6 above the folded heat conducting pipe 4.

[0026] The outer wall of the air duct 12 is clamped with a rubber ring 15, and the air duct 12 is clamped into the side opening 13 by pressing the rubber ring 15;

[0027] By adopting the above technical solution, the air duct 12 can be inserted into the side opening 13 with the help of the rubber ring 15, so that the air duct 12 and the side opening 13 are softly connected and sealed by the rubber ring 15.

[0028] One end of the plug-in pipe 9 is centrally welded to the central cylinder of the air guide tube 10;

[0029] By adopting the above technical solution, the plug-in pipe 9 is centrally welded to the air guide tube 10 for communication.

[0030] The diameter of the opening of the air duct 12 and the diameter of the opening of the air guide tube 10 are the same as the shell diameter of the duct fan 11;

[0031] By adopting the above technical solution, the air duct 12 and the air guide tube 10 can be connected to the duct fan 11.

[0032] The height of the air duct 8 after being welded on the surface of the folded heat conducting tube 4 is greater than the height of the exhaust pipe 7 after being welded on the surface of the folded heat conducting tube 4, and the air duct 8 is exposed from the metal outer furnace body 6 by interference-insertion inserting the connecting tube 9;

[0033] By adopting the above technical solution, the air duct 8 is exposed from the metal outer furnace body 6, so that the connecting pipe 9 can be conveniently inserted.

[0034] The tube body of the folded heat conducting pipe 4 is a folded flat tube body with double-end tube openings closed, and the flat tube body of the folded heat conducting pipe 4 is inserted between the insulation board 5 and the metal inner furnace body 2;

[0035] By adopting the above technical solution, the folded flat tube of the folded heat pipe 4 can be leaned against the metal inner furnace body 2, so that the folded heat pipe 4 can heat up the metal inner furnace body 2 after heating up.

[0036] It should be noted that the utility model is a steaming and drying furnace. After a heat preservation plate 5 is arranged between the metal inner furnace body 2 and the metal outer furnace body 6 of the drying furnace body 1, a return heat conduction pipe 4 of a temperature return mechanism 3 is arranged between the heat preservation plate 5 and the metal inner furnace body 2. The exhaust pipe 7 and the air duct 8 welded on the surface of the return heat conduction pipe 4 can extend out of the heat preservation plate 5 and the metal outer furnace body 6. Then, the air duct 12 is inserted into the side opening 13 of the metal outer furnace body 6. The bottom connecting plate 14 below the air duct 12 and the base of the duct fan 11 are screwed and connected with bolts. The bottom connecting plate 14 of the air guide tube 10 is screwed outside the base in the direction of the air outlet of the duct fan 11. The air guide tube 10 is inserted into the air duct 8 through the plug-in connecting pipe 9. When the steaming and drying furnace is dry, the bottom connecting plate 14 of the air guide tube 10 is screwed and connected with bolts. When the material is dried inside the drying furnace body 1, after drying, the hot air in the furnace cavity above the metal inner furnace body 2 inside the drying furnace body 1 can enter the induced draft duct 12, and the duct fan 11 can be controlled to open, so that the induced draft duct 12 guides the hot air in the furnace cavity above the metal inner furnace body 2 through the duct fan 11, the air guide tube 10, the plug-in pipe 9 and the induced draft pipe 8 into the folded heat conducting pipe 4, and the hot air passes through the folded heat conducting pipe 4 and is discharged outward from the exhaust pipe 7, and the flat tube body folded back at the folded heat conducting pipe 4 can lean against the surface of the metal inner furnace body 2, so that the temperature of the metal inner furnace body 2 is increased by heat conduction, so that the drying furnace body 1 can heat its own metal inner furnace body 2 while discharging the hot and humid air, thereby improving the drying efficiency inside the metal inner furnace body 2.

[0037] It should be noted that the utility model is a cooking and drying furnace, and the components in the utility model are all components known to those skilled in the art, and the structures and principles thereof are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A steaming and drying furnace, comprising a drying furnace body (1), a metal inner furnace body (2) and a metal outer furnace body (6), wherein the metal outer furnace body (6) is fixed outside the metal inner furnace body (2) of the drying furnace body (1), characterized in that: The invention also comprises a temperature recovery mechanism (3), wherein the temperature recovery mechanism (3) comprises a folded heat conducting pipe (4), a heat preservation plate (5), an exhaust pipe (7), an air duct (8), a plug-in pipe (9), an air guide tube (10), a duct fan (11), an air duct (12) and a bottom connecting plate (14); the heat preservation plate (5) is filled between the metal inner furnace body (2) and the metal outer furnace body (6); the folded heat conducting pipe (4) is inserted between the heat preservation plate (5) and the metal inner furnace body (2); the exhaust pipe (7) and the air duct (8) which are interconnected with the tube cavity of the folded heat conducting pipe (4) are respectively welded on the tube surface of the two ends of the folded heat conducting pipe (4); and the exhaust pipe (7) and the air duct (8) penetrate the heat preservation plate (5) and the metal outer furnace body (6) and protrude outwards. A plug-in connecting tube (9) is inserted into the tube cavity of the air duct (8), and the other end of the plug-in connecting tube (9) away from the air duct (8) is welded to the body of the air guide tube (10), a bottom connecting plate (14) is welded below the tube bodies of the air guide tube (10) and the air duct (12), and a duct fan (11) is interconnected between the air guide tube (10) and the air duct (12), and bolts are screwed between the base of the duct fan (11) and the bottom connecting plate (14) of the air guide tube (10) and the air duct (12), and a side opening (13) for inserting the air duct (12) is opened through the metal inner furnace body (2), the insulation board (5) and the metal outer furnace body (6) above the folded heat conducting tube (4).

2. A cooking and drying furnace according to claim 1, characterized in that: The outer tube wall of the air duct (12) is clamped with a rubber ring (15) and the air duct (12) is clamped into the side opening (13) by pressing the rubber ring (15).

3. The cooking and drying furnace according to claim 1, characterized in that: One end of the plug-in pipe (9) is centrally welded to the central cylinder of the air guide cylinder (10).

4. The cooking and drying furnace according to claim 1, characterized in that: The diameter of the pipe opening of the air duct (12) and the diameter of the pipe opening of the air guide cylinder (10) are the same as the diameter of the shell cavity of the ducted fan (11).

5. The cooking and drying furnace according to claim 1, characterized in that: The height of the air duct (8) after being welded to the surface of the folded heat conducting pipe (4) is greater than the height of the exhaust pipe (7) after being welded to the surface of the folded heat conducting pipe (4), and the pipe opening of the air duct (8) exposed from the metal outer furnace body (6) is inserted into the connecting pipe (9) through interference fit.

6. The cooking and drying furnace according to claim 1, characterized in that: The tube body of the folded heat-conducting tube (4) is a folded flat tube body with double-end tube openings closed, and the flat tube body of the folded heat-conducting tube (4) is inserted between the heat-insulating plate (5) and the metal inner furnace body (2).

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