阅读说明：本技术 一种高效隧道炉 (High-efficient tunnel furnace ) 是由 张延� 张海兴 孙爱祥 窦兰月 于 2021-07-22 设计创作，主要内容包括：本发明公开了一种高效隧道炉,涉及加热设备技术领域。技术方案为一种高效隧道炉,包括两端开口的炉体,所述炉体的两端转动连接有传输辊,两所述传输辊上传动连接有输送带,所述输送带从所述炉体内穿过,所述炉体上还设置有用于驱动所述传输辊转动的驱动电机,所述炉体内还设置有红外线发热灯管。本申请结构合理,快速高效地对产品进行加热,并且加热均匀。(The invention discloses a high-efficiency tunnel furnace, and relates to the technical field of heating equipment. The technical scheme is that a high-efficient tunnel furnace, includes both ends open-ended furnace body, the both ends of furnace body are rotated and are connected with the transmission roller, two the transmission is connected with the conveyer belt on the transmission roller, the conveyer belt is followed pass in the furnace body, still be provided with on the furnace body and be used for the drive transmission roller pivoted driving motor, still be provided with the infrared ray fluorescent tube that generates heat in the furnace body. This application is rational in infrastructure, heats the product fast and high-efficiently to the heating is even.)

1. The utility model provides a high-efficient tunnel furnace, includes both ends open-ended furnace body (1), the both ends of furnace body (1) are rotated and are connected with transmission roller (2), two the transmission is connected with conveyer belt (3) on transmission roller (2), conveyer belt (3) are followed pass in furnace body (1), still be provided with on furnace body (1) and be used for the drive transmission roller (2) pivoted driving motor (4), its characterized in that: an infrared heating lamp tube (5) is also arranged in the furnace body (1).

2. A high efficiency tunnel furnace as claimed in claim 1, wherein: the infrared heating lamp tube (5) comprises an upper layer lamp tube (6) and a lower layer lamp tube (7), the upper layer lamp tube (6) is located above an upper layer belt of the conveying belt (3), and the lower layer lamp tube (7) is located between the upper layer belt and the lower layer belt of the conveying belt (3).

3. A high efficiency tunnel furnace as claimed in claim 1, wherein: still be provided with bottom plate (8) in furnace body (1), bottom plate (8) certainly the one end of furnace body (1) extends to the other end, bottom plate (8) are located between the upper and lower layer belt of conveyer belt (3), just the upper belt of conveyer belt (3) supports on bottom plate (8).

4. A high efficiency tunnel furnace as claimed in claim 2, wherein: still be provided with mirror surface temperature reflecting plate (9) in furnace body (1), mirror surface temperature reflecting plate (9) distribute in the lower floor belt of conveyer belt (3) with between lower floor's fluorescent tube (7).

5. A high efficiency tunnel furnace as claimed in claim 3 wherein: the bottom plate (8) is made of heat-conducting materials or light-transmitting materials.

6. A high efficiency tunnel furnace as claimed in claim 3 wherein: and a gap (10) is reserved between the two sides of the bottom plate (8) and the inner wall of the furnace body (1).

7. A high efficiency tunnel furnace as claimed in claim 3 wherein: the furnace body (1) is also provided with a circulating mechanism (11) for accelerating air communication in the upper and lower spaces of the bottom plate (8).

8. A high efficiency tunnel furnace as claimed in claim 7, wherein: the circulating mechanism (11) comprises an air pipe (12), an opening is formed in the air pipe (12) and is respectively communicated with the space above and below the bottom plate (8), a power motor (13) is fixedly mounted on the furnace body (1), and a rotating shaft of the power motor (13) penetrates into the air pipe (12) and is coaxially and fixedly connected with a fan (14) for accelerating air flow.

9. A high efficiency tunnel furnace as claimed in claim 3 wherein: the furnace body (1) comprises an upper part (15) and a lower part (16), the bottom plate (8) is fixedly connected to the lower part (16), one side of the upper part (15) is hinged to the lower part (16), and the other side of the upper part is supported on the lower part (16).

10. A high efficiency tunnel furnace as claimed in claim 1, wherein: the surface of the conveying belt (3) is distributed with through holes (17), and the surface of the conveying belt (3) is also provided with fine needles (18) for supporting products.

Technical Field

The invention relates to the technical field of heating equipment, in particular to a high-efficiency tunnel furnace.

Background

The tunnel furnace is a tunnel type mechanical device which completes heating and baking of articles through heat conduction, convection and radiation. A continuous running conveying system is arranged in the tunnel, and when the products are baked, the products are driven on the conveying system and generate relative motion with the electric heating elements or the burning rods.

Tunnel furnaces are generally classified into electric heating tunnel furnaces, gas tunnel furnaces, natural gas tunnel furnaces, and the like according to the difference of heat sources. The tunnel furnace adopting the stainless steel heating tube as a heat source is one of electric heating tunnel furnaces, the stainless steel heating tube firstly heats air in the tunnel furnace, and then the conveyed product is heated by the heated air, however, the heating speed of the hot air to the product is slow.

In view of the above circumstances, a high efficiency tunnel furnace is proposed.

Disclosure of Invention

In order to improve the condition that current electric heat tunnel furnace is slow to product rate of heating, this application provides a high-efficient tunnel furnace.

The application provides a high-efficient tunnel furnace adopts following scheme:

the utility model provides a high-efficient tunnel furnace, includes both ends open-ended furnace body, the both ends of furnace body are rotated and are connected with the transmission roller, two the transmission is connected with the conveyer belt on the transmission roller, the conveyer belt is followed pass in the furnace body, still be provided with on the furnace body and be used for the drive transmission roller pivoted driving motor, still be provided with the infrared ray fluorescent tube that generates heat in the furnace body.

Through adopting above-mentioned scheme, adopt the infrared ray fluorescent tube that generates heat to replace original stainless steel heating tube, the infrared irradiation that the infrared ray fluorescent tube sent is to the product, directly heat the product, perhaps, the infrared ray that the infrared ray fluorescent tube sent directly heats the conveyer belt, with the article that the conveyer belt contacted, directly conduct heat through object contact, have higher heat conduction effect than the air conduction, thereby reach the effect to the product faster heating, reduce the product baking time, improve the production efficiency of product.

Optionally, the infrared heating lamp tubes comprise an upper layer lamp tube and a lower layer lamp tube, the upper layer lamp tube is located above the upper layer belt of the conveying belt, and the lower layer lamp tube is located between the upper layer belt and the lower layer belt of the conveying belt.

Through adopting above-mentioned scheme, set up upper fluorescent tube and lower floor's fluorescent tube, the upper fluorescent tube directly sends infrared irradiation to the product on, directly heats the upper surface of product, lower floor's fluorescent tube sends infrared ray direct irradiation to on the conveyer belt, directly heats the conveyer belt, the heat is conducted on the product through the contact from on the conveyer belt again for the upper and lower surface rapid heating of product reduces the difference in temperature of the upper and lower surface of product, makes the product heating more even.

Optionally, still be provided with the bottom plate in the furnace body, the bottom plate certainly the one end of furnace body extends to the other end, the bottom plate is located between the upper and lower layer belt of conveyer belt, just the upper belt of conveyer belt supports on the bottom plate.

Through adopting above-mentioned scheme, some products are heavier, and are big to the burden of conveyer belt, so need set up the bottom plate and support conveyer belt and product for the product can transmit steadily.

Optionally, a mirror surface temperature reflecting plate is further arranged in the furnace body, and the mirror surface temperature reflecting plate is distributed between the lower layer belt of the conveying belt and the lower layer lamp tube.

Through adopting above-mentioned scheme, the infrared ray that the temperature reflecting plate can reflect lower floor's fluorescent tube and send shines the upper belt of conveyer belt with the infrared reflection on, perhaps directly launches the infrared ray and shines on the product for more infrared rays are used for heating the product, make the heat conduct the product lower surface better, simultaneously.

Optionally, the bottom plate is made of a heat-conductive material or a light-transmitting material.

By adopting the scheme, when the bottom plate is made of the heat-conductive material, the heat brought by infrared rays can be better absorbed and transferred to the conveying belt and products; when the bottom plate is the printing opacity material, the infrared ray can directly pass the bottom plate and shine on the conveyer belt, directly heats the conveyer belt, and the heat conducts on the product through the conveyer belt to make conveyer belt and product can be heated better.

Optionally, a space is left between two sides of the bottom plate and the inner wall of the furnace body.

Through adopting above-mentioned scheme for the air in the space above the bottom plate and the air in the space below the bottom plate can the heat transfer that circulates each other, make the lower floor belt of conveyer belt keep the heat degree, secondly the heat degree in balanced two spaces for the heating condition or the heat dissipation condition in two spaces are roughly balanced, thereby control the heating of product upper and lower surface and heat up better.

Optionally, the furnace body is further provided with a circulating mechanism for accelerating air communication in the space above and below the bottom plate.

By adopting the scheme, the circulation mechanism accelerates the air flow exchange in the upper and lower spaces of the bottom plate, so that the air temperature difference between the two spaces is smaller.

Optionally, the circulating mechanism includes an air pipe, the air pipe is provided with an opening and is respectively communicated with the space above and below the bottom plate, the furnace body is fixedly provided with a power motor, and a rotating shaft of the power motor penetrates into the air pipe and is coaxially and fixedly connected with a fan for accelerating the flow of air.

By adopting the scheme, the power motor drives the fan to rotate, so that the air flow flows in the air pipe and then flows back through the interval between the bottom plate and the furnace body, thereby forming circulation and accelerating the air flow exchange in the space above and below the bottom plate.

Optionally, the furnace body comprises an upper part and a lower part, the bottom plate is fixedly connected to the lower part, one side of the upper part is hinged to the lower part, and the other side of the upper part is supported on the lower part.

Through adopting above-mentioned scheme, be divided into upper portion and lower part with the furnace body to one side on upper portion articulates on the lower part, conveniently opens upper portion, exposes inside bottom plate of furnace body and conveyer belt, conveniently changes the infrared ray fluorescent tube that generates heat.

Optionally, the surface of the conveying belt is distributed with perforations, and the surface of the conveying belt is further provided with fine needles for supporting the product.

Through adopting above-mentioned scheme, it makes the infrared ray can see through on the perforation direct irradiation product to perforate, and thin needle then props up the product and reduces the influence of contact heat conduction to the product for the upper and lower surface of product is mostly heated through infrared ray direct irradiation, and convenient control product upper and lower surface heating is more even.

In summary, the present application has the following beneficial effects:

1. the infrared heating lamp tube is adopted for heating, so that the product is directly heated and is in contact heat conduction, and the product can be heated more quickly;

2. the lower layer belt of the conveying belt is arranged in the furnace body, so that heat loss is reduced;

3. set up mirror surface temperature reflecting plate and circulation mechanism for the condition when the heating of product upper and lower surface is roughly equal, makes the product heating more even, avoids producing the difference in temperature effect.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1;

FIG. 2 is a sectional view of the overall structure of embodiment 1;

FIG. 3 is a schematic view of the overall structure of embodiment 2.

Reference numerals: 1. a furnace body; 2. a transfer roller; 3. a conveyor belt; 4. a drive motor; 5. an infrared heating lamp tube; 6. an upper layer lamp tube; 7. a lower layer lamp tube; 8. a base plate; 9. a specular temperature reflecting plate; 10. spacing; 11. a circulating mechanism; 12. an air duct; 13. a power motor; 14. a fan; 15. an upper portion; 16. a lower portion; 17. perforating; 18. fine needles; 19. an upper layer belt; 20. a lower layer belt; 21. a support; 22. a square plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the invention discloses a high-efficiency tunnel furnace.

Example 1: referring to fig. 1 and 2, the furnace comprises a furnace body 1 with openings at two ends, wherein the furnace body 1 is in a long tunnel shape, a support frame is arranged below the furnace body 1, and a foot cup and a caster can be arranged on the support frame. The furnace body 1 is designed into an upper part and a lower part which are respectively an upper part 15 and a lower part 16, a supporting frame is fixedly connected on the lower part 16, one side of the upper part 15 is hinged with one side of the lower part 16 through a hinge, the other side of the upper part 15 is supported on the lower part 16 or attached on the lower part 16, and the upper part 15 and the lower part 16 are matched to form a tunnel.

The opening parts at the two ends of the furnace body 1 are rotatably connected with transmission rollers 2, the transmission rollers 2 are connected with a conveying belt 3 for conveying products in a transmission mode, and the furnace body 1 is further fixed with a driving motor 4 for driving the conveying belt to rotate. In this embodiment, ultra-thin belt is selected for use to conveyer belt 3, specifically is the teflon strap that thickness is less than 1 millimeter.

The conveyer belt 3 is provided with an upper layer of belt and a lower layer of belt, the upper layer of belt 19 is a stroke belt for conveying products, the lower layer of belt 20 is a return belt, and the upper layer of belt 19 and the lower layer of belt 20 both pass through the furnace body 1.

Fixedly connected with bottom plate 8 in furnace body 1, bottom plate 8 is easy heat conduction material or printing opacity material, adopt easy heat conduction material in this embodiment, specifically be the steel sheet, bottom plate 8 extends to the other end from the one end of furnace body 1, in fact, bottom plate 8 includes ladder-shaped's support 21, and support square plate 22 on support 21, support 21 is fixed on lower part 16, square plate 22 inlays the square hole position at support 21, and the upper surface of square plate 22 and support 21's upper surface flush, upper skin 19 supports the upper surface at support 21 and square plate 22 when transmitting the product.

An infrared heating lamp tube 5 for heating is arranged in the furnace body 1, the infrared heating lamp tube 5 comprises an upper layer lamp tube 6 and a lower layer lamp tube 7, the upper layer lamp tube 6 and the lower layer lamp tube 7 are respectively arranged, a plurality of lamp tubes are distributed on each layer lamp tube at intervals of 10, the upper layer lamp tube 6 is arranged above the upper layer belt 19, so that infrared rays emitted by the upper layer lamp tube 6 can directly irradiate the upper layer belt 19, angle steel-shaped frames are arranged on the upper surface of the support 21 through bolts, and the upper layer lamp tube 6 is fixedly arranged on the frames; lower floor's fluorescent tube 7 is located between bottom plate 8 and lower floor's belt 20, and the infrared ray that lower floor's fluorescent tube 7 sent can direct irradiation on bottom plate 8 for bottom plate 8 intensifies, and bottom plate 8 contacts the heat conduction again between with conveyer belt 3, the product, and the angle steel form shelf is also installed through the bolt to the support 21 lower surface, and lower floor's fluorescent tube 7 installation is fixed on these shelves.

The infrared rays of the upper layer lamp tube 6 are irradiated on the product to directly heat the upper surface of the product, and the infrared rays of the lower layer lamp tube 7 are irradiated on the bottom plate 8 to conduct the heat on the bottom plate 8 to the conveying belt 3 and the product through contact heat conduction to indirectly heat the lower surface of the product, so that the heating speed of the lower surface of the product is slower than that of the upper surface of the product, and uneven heating is easily caused; therefore, mirror surface temperature reflecting plate 9 is further arranged in furnace body 1, mirror surface temperature reflecting plate 9 is arranged and distributed between lower layer belt 20 and lower layer lamp tube 7, infrared rays radiated downwards by lower layer lamp tube 7 can be reflected back by mirror surface temperature reflecting plate 9 to be radiated onto bottom plate 8, so that heat provided by lower layer lamp tube 7 to bottom plate 8 is more than heat provided by upper layer lamp tube 6 to product, lower surface of product can be heated more quickly, and temperature difference between upper surface and lower surface is smaller when product is heated.

When the bottom plate 8 is fixed on the lower part 16, a space 10 is left between both sides of the bottom plate 8 and the inner wall of the lower part 16, so that the air in the space above and below the bottom plate 8 can be mutually circulated. In order to accelerate the temperature equalization of air flow in the space above and below the bottom plate 8, a circulating mechanism 11 is also arranged on the furnace body 1 to accelerate the air flow.

The circulating mechanism 11 comprises an air pipe 12, an opening is formed in the air pipe 12 and communicated with the space above and below the bottom plate 8, a power motor 13 is fixedly installed outside the furnace body 1, a rotating shaft of the power motor 13 penetrates into the air pipe 12 and is coaxially and fixedly connected with a fan 14 used for accelerating air flow, an opening is formed in the position, corresponding to the fan 14, of the air pipe 12 and communicated with the space above the bottom plate 8, other openings of the air pipe 12 are communicated with the space below the bottom plate 8, when the power motor 13 drives the fan 14 to rotate, air in the space below the bottom plate 8 is extracted through the air pipe 12 and is input into the space above the bottom plate 8, and the air in the space above the bottom plate 8 flows back to the space below the bottom plate 8 through a gap 10, so that air circulation is realized.

Example 2: as shown in fig. 3, the present embodiment is different from embodiment 1 in that a light-transmitting material, specifically, transparent tempered glass, is used as the square plate 22, and the surface of the conveyor belt 3 is provided with through holes 17, and the surface of the conveyor belt 3 is provided with fine needles 18 for supporting a product.

At this moment, the infrared ray that upper lamp tube 6 sent can direct irradiation product upper surface, and the infrared ray that lower floor's lamp tube 7 sent can shine the product lower surface through toughened glass, perforation 17 on the conveyer belt 3, and the loss when the infrared ray passes toughened glass is compensated by the infrared ray of mirror surface temperature reflecting plate 9 reflection, and the effect of fine needle 18 is the heat change that reduces the contact and bring the product for the upper and lower surface of product all heats the intensification through the irradiation of infrared ray, makes the product can be heated evenly.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.