Air heater for drying aluminum plate

Abstract

An air heater for drying an aluminum plate comprises a hot air box body and a flame heating machine arranged at an opening in one end of the hot air box body, an air draft assembly capable of sucking away heating gas generated by the flame heating machine is arranged in the hot air box body, and the flame heating machine is arranged at the opening through a fixing plate. The flame spraying end of the flame heating machine penetrates through the fixing plate and extends into the hot air box body, an air blower is arranged on the hot air box body, the blowing end of the air blower is communicated with the interior of the hot air box body through a pipeline, the side, facing the hot air box body, of the fixing plate is covered with a windproof cover with openings in the two ends, and open holes are evenly formed in the peripheral side of the windproof cover. Flame ejected by the flame heating machine is completely located in the hot air box body, the flame ejection position of the flame heating machine is covered through the wind shielding cover, the situation that the air draft assembly influences work of the flame heating machine is avoided, meanwhile, a combustion-supporting air blower is further arranged at the flame ejection position of the flame heating machine, and therefore the flame heating machine can be used for heating the flame. Oxygen is provided for burning flames, and flameout caused by oxygen deficit is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum plate processing, in particular to a hot air blower for drying aluminum plates. Background Art

[0002] The applicant's production workshop uses a hot air blower for drying and heating aluminum plates. The hot air blower includes a heating box and a flame heater disposed at an opening at one end of the heating box. The flame ejected by the flame heater heats the air in the heating box, and the exhaust assembly inside the heating box introduces the heated gas into the oven, thereby heating and drying the aluminum plates in the oven. Since the air in the heating box is relatively thin, and the air supply device inside the heating box has been exhausting the heating assembly, in order to prevent the flame ejected by the flame heater from being extinguished, part of the flame ejected by the flame heater will be located outside the heating box. However, part of the flame will come into contact with the air outside the heating box, which will cause a large amount of heat energy to be lost, resulting in some fuel waste. Utility Model Content

[0003] The utility model aims to provide a hot air blower for drying aluminum plates, which can reduce a large amount of heat energy loss and reduce fuel waste.

[0004] In order to solve the deficiencies of the above-mentioned technical problems, the utility model adopts the following technical solutions: a hot air blower for drying aluminum plates, comprising a hot air box and a flame heater arranged at an opening at one end of the hot air box, an exhaust assembly capable of sucking away the heating gas generated by the flame heater is arranged inside the hot air box, the flame heater is arranged at the opening through a fixing plate, the flame spraying end of the flame heater passes through the fixing plate and extends to the inside of the hot air box, a blower is arranged on the hot air box, the blowing end of the blower is connected with the inside of the hot air box through a pipeline, a windproof cover with openings at two ends is provided on one side of the fixing plate facing the hot air box, openings are evenly distributed on the circumference of the windproof cover, and a wind shield cap is provided on the end of the windproof cover facing away from the flame heater.

[0005] As a further optimization of the hot air blower for drying aluminum plates of the utility model, the outer side of the wind shield cap is connected to the wind shield through a plurality of connecting rods.

[0006] As a further optimization of the hot air blower for drying aluminum plates of the utility model, the wind shield is cylindrical.

[0007] As a further optimization of the hot air blower for drying aluminum plates of the utility model, the wind shield cap is in a cone shape, and the small diameter end of the wind shield cap extends to the interior of the wind shield.

[0008] As a further optimization of the hot air blower for drying aluminum plates of the utility model, the aperture of the opening is 1-3 cm.

[0009] As a further optimization of the hot air blower for drying aluminum plates of the utility model, the wind shield is made of a stainless steel plate with a thickness of 0.4 cm.

[0010] As a further optimization of the hot air blower for drying aluminum plates of the utility model, the fixing plate is fixedly welded to the hot air box body.

[0011] As a further optimization of the hot air blower for drying aluminum plates of the utility model, a bolt is arranged on the side of the hot air box body facing the fixed plate, a through hole for the bolt to pass through is arranged on the fixed plate, and the bolt body passes through the through hole and is screwed to the nut.

[0012] The utility model has the following beneficial effects:

[0013] First, the utility model makes the flame sprayed by the flame heating machine completely located inside the hot air box, and covers the flame heating machine's flame spraying place through the wind shield to prevent the exhaust component from affecting the flame heating machine's operation. At the same time, a combustion-supporting blower is also arranged at the flame heating machine's flame spraying place to provide oxygen for the burning flame to prevent it from being extinguished due to lack of oxygen;

[0014] Second, the device is also provided with a wind shield cap at one end of the wind shield away from the flame heater, which can prevent the flame heater from being too strong and impacting the exhaust assembly inside the hot air box. At the same time, the small diameter end of the wind shield cap extends to the inside of the wind shield, which not only blocks the flame heater's firepower, but also allows the flame heater's firepower to be vented to the opening of the wind shield, thereby improving the heating efficiency of nearby gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the hot air blower of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the hot air blower of the utility model;

[0017] Figure numerals: 1. hot air box, 3. fuel delivery pipe, 4. fixing plate, 5. pipeline, 6. blower, 7. nut, 8. bolt, 9. flame heating machine, 10. opening, 11. wind shield, 12. connecting rod, 13. wind shield, 14. opening. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] like Figure 1-2 As shown, the utility model provides a hot air blower for drying aluminum plates, in which the flame sprayed by the flame heater 9 can be completely placed inside the hot air box 1, thereby avoiding a large amount of heat energy loss and reducing fuel waste. At the same time, the sprayed flame will not be extinguished due to the exhaust of the exhaust component or the oxygen-deficient environment.

[0020] The hot air blower provided in this embodiment is similar to the prior art in that both include a hot air box 1 and a flame heating machine 9 disposed at an opening 14 at one end of the hot air box 1. An exhaust assembly capable of sucking away the heated gas generated by the flame heating machine 9 is disposed inside the hot air box 1. The exhaust assembly is a prior art and can be a powerful exhaust blower or a powerful fan. After the flame heating machine 9 sprays flames to heat the air inside the hot air box 1, the gas heated by the exhaust assembly is sucked into the drying box, thereby achieving the effect of drying the aluminum plate.

[0021] The difference between the hot air machine in this embodiment and the prior art is that the opening 14 of the hot air box 1 is sealed by the fixing plate 4, the flame heating machine 9 is fixed on the fixing plate 4, and the flame spraying end of the flame heating machine 9 extends through the fixing plate 4 to the inside of the hot air box 1. When the flame heating machine 9 sprays flames, the sprayed flames are all located inside the hot air box 1, and the fixing plate 4 seals the opening 14, which can prevent the gas heated by the flame heating machine 9 from flowing out, improve the heating efficiency of the flame heating machine 9, avoid the leakage of a large amount of heat energy, and reduce the waste of fuel.

[0022] At the same time, in order to prevent the flame from being extinguished due to the thin oxygen inside the hot air box 1 when the flame heating machine 9 sprays the flame, a blower 6 is provided on the hot air box 1, and the blowing end of the blower 6 is connected to the inside of the hot air box 1 through a pipe 5. The blower 6 is used to provide air for the burning flame at the setting time to prevent the flame from being extinguished due to the thin oxygen.

[0023] The fixed plate 4 is provided with a wind shield 11 with open ends on one side facing the hot air box 1. The wind shield 11 is made of a 0.4 cm thick stainless steel plate. The wind shield 11 is cylindrical. Openings 10 are evenly distributed around the wind shield 11. The aperture of the opening 10 is 1-3 cm. The setting of the wind shield 11 can prevent the exhaust assembly inside the hot air box 1 from affecting the combustion state of the flame ejected by the flame heating machine 9 when exhausting air. At the same time, the setting of the opening 10 facilitates the dispersion of heat when the flame burns.

[0024] Although the setting of the wind shield 11 can reduce the exhaust effect of the exhaust assembly, the setting of the wind shield 11 causes the flame heating machine 9 to gather and strengthen due to space limitations, which will impact the exhaust assembly inside the hot air box 1. A wind shield 13 is provided at one end of the wind shield 11 facing away from the flame heating machine 9, and the outer side of the wind shield 13 is connected to the wind shield 11 through multiple connecting rods 12. The wind shield 13 is conical in shape, and the small diameter end of the wind shield extends to the inside of the wind shield. While blocking the flame heating machine 9, the wind shield allows the flame heating machine 9 to be discharged to the opening 10 of the wind shield 11, thereby improving the heating efficiency of the nearby gas.

[0025] In this embodiment, the flame heating machine 9 is a natural gas fuel source, and the flame heating machine 9 is connected to the external fuel supply part through the fuel delivery pipe 3. At the same time, the flame heating machine 9 is ignited by an electric ignition device. In this embodiment, the flame heating machine 9 is an existing device, and the setting and control are all existing technologies.

[0026] In this embodiment, there are two ways to fix the fixing plate 4. One is a non-detachable way, specifically, the fixing plate 4 is welded to the hot air box body 1. The other is a detachable way, specifically, a bolt 8 is provided on the side of the hot air box body 1 facing the fixing plate 4, and a through hole is provided on the fixing plate 4 for the bolt 8 to pass through, and the bolt body of the bolt 8 passes through the through hole and is screwed to the nut 7. The advantage of this method is that the flame heating machine 9 can be removed from the hot air box body 1, which is convenient for later replacement and maintenance.

[0027] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various modifications or variations within the scope of the claims, which does not affect the essence of the present invention.

Claims

1. A hot air blower for drying aluminum plates, comprising a hot air box (1) and a flame heater (9) arranged at an opening (14) at one end of the hot air box (1), wherein an exhaust assembly capable of sucking away the heated gas generated by the flame heater (9) is arranged inside the hot air box (1), characterized in that: The flame heating machine (9) is arranged at the opening (14) through the fixing plate (4), and the flame spraying end of the flame heating machine (9) passes through the fixing plate (4) and extends to the inside of the hot air box (1). The hot air box (1) is provided with a blower (6), and the blowing end of the blower (6) is connected to the inside of the hot air box (1) through a pipeline (5). A wind shield (11) with open ends is provided on one side of the fixing plate (4) facing the hot air box (1), and openings (10) are evenly distributed on the circumference of the wind shield (11). A wind shield cap (13) is provided on the end of the wind shield (11) facing away from the flame heating machine (9).

2. The hot air blower for drying aluminum plates according to claim 1, characterized in that: The outer side of the wind shield (13) is connected to the wind shield (11) via a plurality of connecting rods (12).

3. The hot air blower for drying aluminum plates according to claim 1, characterized in that: The wind shield (11) is cylindrical.

4. The hot air blower for drying aluminum plates according to claim 1, characterized in that: The wind shield cap (13) is in a cone shape, and the small diameter end of the wind shield cap (13) extends to the inside of the wind shield.

5. The hot air blower for drying aluminum plates according to claim 1, characterized in that: The aperture of the opening (10) is 1-3 cm.

6. The hot air blower for drying aluminum plates according to claim 1, characterized in that: The material of the wind shield (11) is a stainless steel plate with a thickness of 0.4 cm.

7. The hot air blower for drying aluminum plates according to claim 1, characterized in that: The fixing plate (4) is fixedly welded to the hot air box body (1).

8. The hot air blower for drying aluminum plates according to claim 1, characterized in that: A bolt (8) is arranged on one side of the hot air box body (1) facing the fixing plate (4), and a through hole for the bolt (8) to pass through is arranged on the fixing plate (4), and the bolt body of the bolt (8) passes through the through hole and is screwed to the nut (7).

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