Energy-saving heating furnace

Abstract

The utility model provides an energy-saving heating furnace, comprising: a furnace body, provided with a heating chamber, in which a heating component is provided; a conveying component, used to convey the material to be heated through the heating chamber; an exhaust gas discharge channel, which is arranged on both sides of the heating chamber and is connected with the heating chamber; the exhaust gas outlet of the exhaust gas discharge channel is arranged on the side away from the heating chamber, and an insulation layer is arranged on the outside of the heating chamber. The above energy-saving heating furnace, by arranging the exhaust gas discharge channel on both sides of the heating chamber, when the exhaust gas containing heat is discharged from the exhaust gas discharge channel, it passes through the outer wall of the heating chamber, and plays a secondary insulation role for the insulation layer on the outside of the heating chamber, so as to re-utilize the heat in the exhaust gas, avoid the heat in the exhaust gas from being directly dissipated into the air, and cause the ambient temperature of the heating furnace to be high, which is beneficial to energy saving and environmental protection. It solves the problem that the above heating furnace directly discharges the exhaust gas into the air, which not only causes the ambient temperature of the heating furnace to be high, but also is not conducive to energy saving and environmental protection.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment equipment, in particular to an energy-saving heating furnace. Background Art

[0002] In profile production, it is usually necessary to use a heating furnace to heat treat the profile. Heat treatment includes quenching, tempering, normalizing, annealing and other processes. The heat treatment effect achieved will be different depending on the temperature and duration of the heat treatment.

[0003] Among them, the coated profile needs to be heat treated after spraying to remove the oxide on the workpiece surface, activate the workpiece surface, remove the impurity layer on the profile surface, and enhance the bonding strength of the coating. The bonding strength between the profile and the coating is significantly increased, which reduces the occurrence of coating peeling on the profile under harsh working conditions.

[0004] The Chinese utility model patent with publication number CN207431190U discloses a constant temperature heating furnace, including a furnace body and an exhaust chimney, the exhaust chimney is arranged on the top of the furnace body, a gas mixing chamber is arranged in the furnace body wall, and the gas mixing chamber is connected to the gas pipeline and the air inlet pipeline respectively.

[0005] The above heating furnace discharges the exhaust gas from the heating chamber by arranging an exhaust chimney on the top of the furnace body. However, the heat carried by the exhaust gas is also directly dissipated into the air, which not only causes the ambient temperature of the heating furnace to be high, but also is not conducive to energy saving and environmental protection. Utility Model Content

[0006] Based on this, in order to solve the problem that the above-mentioned heating furnace directly discharges the exhaust gas into the air, which not only causes the ambient temperature of the heating furnace to be high, but also is not conducive to energy saving and environmental protection, the utility model provides an energy-saving heating furnace, and its specific technical solution is as follows:

[0007] An energy-saving heating furnace, comprising:

[0008] The furnace body is provided with a heating chamber, and a heating component is provided in the heating chamber;

[0009] A conveying component, used for conveying the material to be heated through the heating chamber;

[0010] An exhaust gas discharge channel is arranged on both sides of the heating chamber and communicated with the heating chamber;

[0011] The exhaust gas outlet of the exhaust gas exhaust channel is arranged at a side away from the heating chamber, and a heat preservation layer is arranged on the outer side of the heating chamber.

[0012] The above-mentioned energy-saving heating furnace arranges the exhaust gas exhaust channel on both sides of the heating chamber. When the exhaust gas containing heat is discharged from the exhaust gas exhaust channel, it passes through the outer wall of the heating chamber, plays a secondary insulation role for the insulation layer outside the heating chamber, and reuses the heat in the exhaust gas, avoiding the heat in the exhaust gas from being directly dissipated into the air and causing the ambient temperature of the heating furnace to be high, which is beneficial to energy saving and environmental protection.

[0013] Furthermore, the exhaust gas discharge channel is provided with a filter component connected to the furnace body with a detachable structure; the filter component includes a filter plate, and at least a first filter layer and a second filter layer are provided on the filter plate, and the filter holes of the first filter layer are smaller than the filter holes of the second filter layer.

[0014] Furthermore, the detachable structure includes a plug-in slot hole, a limiting fastener, and a positioning plate provided on the filter plate, the plug-in slot hole being adapted to the filter plate; the positioning plate includes a pressing portion pressing against the outer side of the furnace body, and a positioning portion pressed against by the limiting fastener.

[0015] Furthermore, the detachable structure comprises a sealing rubber, and the sealing rubber is arranged on a side of the positioning plate close to the furnace body.

[0016] Furthermore, the exhaust gas exhaust channel is connected to the heating chamber through an exhaust gas inlet arranged at the top of the heating chamber; the exhaust gas exhaust channel includes a transverse channel arranged above the heating chamber, and vertical channels respectively arranged at both ends of the transverse channel; the exhaust gas outlet is arranged on the bottom side of the vertical channel.

[0017] Furthermore, it also includes an exhaust component; the exhaust component includes an exhaust fan and an air collecting pipe assembly, the air inlet of the exhaust fan is connected to the exhaust gas outlet, the air collecting pipe assembly includes a first air collecting pipe arranged on the top of the furnace body, and a second air collecting pipe connected to the first air collecting pipe, and the second air collecting pipe is connected to the air outlet of the exhaust fan.

[0018] Furthermore, the heating furnace is a continuous heating furnace in which a heating chamber runs through a furnace body, and the gas collecting pipe assembly further includes gas collecting hoods arranged at both ends of the heating chamber, and the gas collecting hoods are connected to the first gas collecting pipe.

[0019] Furthermore, the furnace body is provided with two partition door assemblies, and the two partition door assemblies are used to separate the heating chamber into a feeding area, a heat preservation area and a discharging area in sequence; the temperature of the heat preservation area is greater than the temperature of the feeding and discharging areas.

[0020] Furthermore, the exhaust gas discharge channel is arranged at the inclined baffle plate of the exhaust gas outlet, and the dirt containing chamber is arranged at the bottom of the vertical channel.

[0021] Furthermore, a cleaning hole and a blocking member for blocking the cleaning hole are provided at the bottom of the dirt containing chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0023] Figure 1 This is a schematic diagram of the structure of the energy-saving heating furnace described in an embodiment of the utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the energy-saving heating furnace described in an embodiment of the utility model. Figure 2 ;

[0025] Figure 3 It is a structural cross-sectional view of an energy-saving heating furnace according to an embodiment of the utility model;

[0026] Figure 4 yes Figure 3 Enlarged view of the structure at E in the middle.

[0027] Description of reference numerals:

[0028] 1. Furnace body; 2. Conveying components; 3. Exhaust gas discharge channel; 4. Removable structure; 5. Filter components; 6. Exhaust components;

[0029] 101. Heating chamber;

[0030] 11. Heating components; 12. Insulation layer; 13. Partition door assembly;

[0031] 301, exhaust gas outlet; 302, exhaust gas inlet;

[0032] 31. Horizontal channel; 32. Vertical channel; 33. Oblique baffle; 34. Dirt chamber;

[0033] 41. Insertion slot; 42. Limiting fastener; 43. Positioning plate; 44. Sealing rubber;

[0034] 51. Filter plate;

[0035] 61. Exhaust fan; 62. Air collecting pipe assembly;

[0036] 621. First air collecting pipe; 622. Second air collecting pipe; 623. Air collecting hood. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0040] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0041] like Figure 1 and Figure 2 , Figure 3 As shown, an energy-saving heating furnace in one embodiment of the utility model includes:

[0042] The furnace body 1 is provided with a heating chamber 101, and a heating component 11 is provided in the heating chamber 101;

[0043] A conveying component 2, used for conveying the material to be heated through the heating chamber 101;

[0044] An exhaust gas discharge channel 3 is provided on both sides of the heating chamber 101 and communicates with the heating chamber 101;

[0045] The exhaust gas outlet 301 of the exhaust gas exhaust channel 3 is arranged at a side away from the heating chamber 101 , and a heat preservation layer 12 is arranged on the outer side of the heating chamber 101 .

[0046] The above-mentioned energy-saving heating furnace is configured with exhaust gas exhaust channels 3 on both sides of the heating chamber 101. When the exhaust gas containing heat is discharged from the exhaust gas exhaust channels 3, it passes through the outer wall of the heating chamber 101, and plays a secondary insulation role for the insulation layer 12 outside the heating chamber 101, thereby reusing the heat in the exhaust gas and avoiding the heat in the exhaust gas from being directly dissipated into the air and causing the ambient temperature of the heating furnace to be high, which is beneficial to energy saving and environmental protection.

[0047] like Figure 3 and Figure 4 As shown, in one embodiment, the exhaust gas discharge channel 3 is provided with a detachable structure 4 connected to a filter component 5 on the furnace body 1; the filter component 5 includes a filter plate 51, and the filter plate 51 is provided with at least a first filter layer and a second filter layer, and the filter holes of the first filter layer are smaller than the filter holes of the second filter layer. In this way, the filter plate 51 is used to filter harmful substances in the exhaust gas to prevent the harmful substances in the exhaust gas from being emitted into the air, causing the working environment around the heating furnace to be harmful to the workers.

[0048] In one embodiment, the detachable structure 4 includes a plug-in slot 41, a position-limiting fastener 42, and a positioning plate 43 provided on the filter plate 51, the plug-in slot 41 is adapted to the filter plate 51; the positioning plate 43 includes a pressing portion for pressing the outer side of the furnace body 1, and a positioning portion pressed by the position-limiting fastener 42. In this way, the position-limiting fastener 42 is used to press the positioning portion of the positioning plate 43, so that the pressing portion of the positioning plate 43 is close to the furnace body 1, and then the filter plate 51 is blocked in the exhaust gas discharge channel 3, and the exhaust gas in the exhaust gas discharge channel 3 is filtered by the filter plate 51.

[0049] In one embodiment, the limiting fastener 42 is fastened to the furnace body 1 by bolts. Thus, the limiting fastener 42 is rotated to press the positioning portion of the positioning plate 43, so that the pressing portion of the positioning plate 43 is close to the furnace body 1, and the filter plate 51 is blocked in the exhaust gas discharge channel 3, and the exhaust gas in the exhaust gas discharge channel 3 is filtered by the filter plate 51.

[0050] In one embodiment, the detachable structure 4 includes a sealing rubber 44, which is arranged on a side of the positioning plate 43 close to the furnace body 1. In this way, the sealing rubber 44 is in close contact with the furnace body 1 to prevent exhaust gas from leaking out of the plug-in slot 41, thereby polluting the working environment around the heating furnace.

[0051] In one embodiment, the exhaust gas discharge channel 3 is connected to the heating chamber 101 through the exhaust gas inlet 302 arranged at the top of the heating chamber 101; the exhaust gas discharge channel 3 includes a transverse channel 31 arranged above the heating chamber 101, and vertical channels 32 respectively arranged at both ends of the transverse channel 31; the exhaust gas outlet 301 is arranged on the bottom side of the vertical channel 32. In this way, the exhaust gas discharge channel 3 with an n-shaped cross-section is surrounded by the left and right top three directions of the heating chamber 101, thereby achieving a secondary heat preservation effect.

[0052] In one embodiment, an exhaust component 6 is further included; the exhaust component 6 includes an exhaust fan 61 and an air collecting pipe assembly 62, the air inlet of the exhaust fan 61 is connected to the exhaust gas outlet 301, and the air collecting pipe assembly 62 includes a first air collecting pipe 621 arranged on the top of the furnace body 1, and a second air collecting pipe 622 connected to the first air collecting pipe 621, and the second air collecting pipe 622 is connected to the air outlet of the exhaust fan 61. In this way, the exhaust fan 61 sequentially passes the exhaust gas through the exhaust gas outlet 301, the second air collecting pipe 622, and the first air collecting pipe 621, so that the filtered exhaust gas is discharged from the top of the heating furnace to avoid polluting the working environment around the heating furnace.

[0053] In one embodiment, the heating furnace is a continuous heating furnace in which the heating chamber 101 passes through the furnace body 1, and the gas collecting pipe assembly 62 further includes a gas collecting hood 623 disposed at both ends of the heating chamber 101, and the gas collecting hood 623 is connected to the first gas collecting pipe 621. Since both ends of the heating chamber 101 have reached a certain temperature,

[0054] In one embodiment, the furnace body 1 is provided with two partition door assemblies 13, and the two partition door assemblies 13 are used to separate the heating chamber 101 into a feeding area, a heat preservation area and a discharging area in sequence; the temperature of the heat preservation area is higher than the temperature of the feeding area and the discharging area. In this way, the heat preservation area is isolated by the two partition door assemblies 13, so as to ensure the actual heating temperature of the aluminum profile, and then ensure the heat treatment effect.

[0055] In one embodiment, the exhaust gas discharge channel 3 is provided with an inclined baffle 33 at the exhaust gas outlet 301 and a dirt holding chamber 34 at the bottom of the vertical channel 32. In this way, the gaseous impurities in the exhaust gas are blocked by the inclined baffle 33, so that the gaseous impurities are pre-cooled to be liquid, and then drip into the dirt holding chamber 34 at the bottom of the vertical channel 32, thereby preventing the gaseous impurities from being discharged from the exhaust component 6 into the air.

[0056] In one embodiment, a cleaning hole and a plugging member for plugging the cleaning hole are provided at the bottom of the dirt holding chamber 34. Specifically, the plugging member is connected to the bottom of the dirt holding chamber 34 by threads. In this way, the dirt holding chamber 34 can be cleaned by removing the plugging member to avoid excessive accumulation in the dirt holding chamber 34 and affecting the exhaust gas discharge efficiency.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An energy-saving heating furnace, characterized in that: include: A furnace body (1) is provided with a heating chamber (101), wherein a heating component (11) is provided in the heating chamber (101); A conveying component (2) for conveying the material to be heated through the heating chamber (101); An exhaust gas discharge channel (3) is arranged on both sides of the heating chamber (101) and is in communication with the heating chamber (101); The exhaust gas outlet (301) of the exhaust gas exhaust channel (3) is arranged on a side away from the heating chamber (101), and a heat-insulating layer (12) is arranged on the outside of the heating chamber (101).

2. The energy-saving heating furnace according to claim 1, characterized in that: The exhaust gas discharge channel (3) is provided with a filter component (5) connected to the furnace body (1) via a detachable structure (4); The filter component (5) comprises a filter plate (51), on which at least a first filter layer and a second filter layer are provided, and the filter holes of the first filter layer are smaller than the filter holes of the second filter layer.

3. An energy-saving heating furnace according to claim 2, characterized in that: The detachable structure (4) comprises a plug-in slot (41) arranged on the furnace body (1), a limiting fastener (42), and a positioning plate (43) arranged on the filter plate (51), and the plug-in slot (41) is adapted to fit the filter plate (51); The positioning plate (43) comprises a pressing portion for pressing the outer side of the furnace body (1), and a positioning portion pressed by the limiting fastener (42).

4. The energy-saving heating furnace according to claim 3, characterized in that: The detachable structure (4) comprises a sealing rubber (44), and the sealing rubber (44) is arranged on a side of the positioning plate (43) close to the furnace body (1).

5. The energy-saving heating furnace according to claim 1, characterized in that: The exhaust gas discharge channel (3) is in communication with the heating chamber (101) via an exhaust gas inlet (302) arranged at the top of the heating chamber (101); The exhaust gas discharge channel (3) comprises a transverse channel (31) arranged above the heating chamber (101), and vertical channels (32) respectively arranged at both ends of the transverse channel (31); The exhaust gas outlet (301) is arranged on the bottom side of the vertical channel (32).

6. The energy-saving heating furnace according to claim 1, characterized in that: Also includes an exhaust component (6); The exhaust component (6) comprises an exhaust fan (61) and an air collecting pipe assembly (62); the air inlet of the exhaust fan (61) is connected to the exhaust gas outlet (301); the air collecting pipe assembly (62) comprises a first air collecting pipe (621) arranged on the top of the furnace body (1); and a second air collecting pipe (622) connected to the first air collecting pipe (621); the second air collecting pipe (622) is connected to the air outlet of the exhaust fan (61).

7. The energy-saving heating furnace according to claim 6, characterized in that: The heating furnace is a continuous heating furnace in which a heating chamber (101) runs through a furnace body (1); the gas collecting pipe assembly (62) further comprises gas collecting hoods (623) arranged at both ends of the heating chamber (101); the gas collecting hoods (623) are connected to the first gas collecting pipe (621).

8. The energy-saving heating furnace according to claim 1, characterized in that: The furnace body (1) is provided with two partition door assemblies (13), and the two partition door assemblies (13) are used to separate the heating chamber (101) into a material input area, a heat preservation area and a material output area in sequence; The temperature of the insulation zone is greater than the temperature of the feeding zone and the discharging zone.

9. The energy-saving heating furnace according to claim 5, characterized in that: The waste gas discharge channel (3) is arranged at an inclined baffle (33) of the waste gas outlet (301), and a dirt containing chamber (34) is arranged at the bottom of the vertical channel (32).

10. The energy-saving heating furnace according to claim 9, characterized in that: The bottom of the dirt containing chamber (34) is provided with a cleaning hole and a blocking member for blocking the cleaning hole.

Images