CN218065782U - A hot air circulation tunnel furnace - Google Patents

Abstract

The utility model discloses a hot air circulation tunnel furnace, which relates to the technical field of tunnel drying. The utility model comprises a casing, the upper surface of the casing is fixedly connected with a hot air blower on the right side, the left side of the hot air blower is fixedly connected with a filter device, the left side of the filter device is fixedly connected with an air guiding box, and the casing is fixedly connected with a first circulation around the inner surface. Channel, the first circulation channel is fixedly connected with the second circulation channel along the inner surface, and the conveyor belt device is fixedly connected inside the shell. In the utility model, through the cooperation of the filter device and the hot air blower, through the opening three and the filter screen two, the impurities sucked in the hot air circulation line are completely filtered, and the safety and reliability of the product are greatly improved.

Description

A hot air circulation tunnel furnace

technical field

The utility model belongs to the technical field of tunnel drying, in particular to a hot air circulation tunnel furnace.

Background technique

In order to adapt to the development of the industry in the drying field, tunnel furnace drying adopts assembly line production to improve production efficiency, but its large energy consumption has led to the generation of a hot air circulation system. The hot air circulation tunnel furnace uses a circulation device to transport hot air back to the tunnel again Heating in the furnace greatly reduces energy consumption and develops a new direction in resource utilization.

The patent specification with the application number CN202020748196.3 discloses a hot air circulation tunnel furnace, which includes a hot air generator, a fan and a furnace body. The air inlet passage communicated with the fan; the interior of the furnace body is provided with a first circulation passage, a second circulation passage and a conveyor belt, the first circulation passage is located on the inner wall of the furnace body, communicates with the air inlet passage, and the other end extends to the bottom of the conveyor belt ; The second circulation channel is located between the first circulation channel and the conveyor belt, and communicates with the air inlet channel; the top and bottom of the conveyor belt are respectively provided with an upper wind box and a lower wind box along its length direction, and the upper wind box includes several upper air supply pieces and air supply A number of upper air supply plates are arranged at equal intervals to form a number of upper air ducts. The air supply plate is provided with a number of air supply holes. The lower air box includes a number of lower air supply plates arranged at equal intervals. Several lower air supply plates form a number of lower air channels. . This device will drive the outside air in during the hot air circulation process, and at the same time make the impurities in the air enter the tunnel furnace and pollute the product, which is not safe enough.

Aiming at the problems in the related technologies, no effective solution has been proposed yet.

Utility model content

Aiming at the problems in the related art, the utility model proposes a hot air circulation tunnel furnace to overcome the above-mentioned technical problems existing in the related art.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model relates to a hot air circulation tunnel furnace, which includes a shell, a hot air blower is fixedly connected to the upper surface of the shell on the right side, a filter device is fixedly connected to the left side of the heat blower, and an air guide box is fixedly connected to the left side of the filter device , the housing is fixedly connected with a first circulation channel along the inner surface, the first circulation channel is fixedly connected with a second circulation channel along the inner surface, and the inside of the housing is fixedly connected with a conveyor belt device.

Further, the filter device includes a filter box, the right side of the filter box is fixedly connected with an air inlet pipe, the inside of the filter box is fixedly connected with a filter net one, and the left side of the filter box is fixedly connected with an air outlet pipe, The circular end surface of the air outlet pipe is fixedly connected to the air guide box.

Further, the air guide box is an inverted quadrangular platform, the housing is provided with a through opening, and the lower surface of the air guide box is completely fitted to the through opening.

Further, the first circulation channel is provided with a second through hole, and the second through hole is located directly below the first through hole.

Further, the second circulation channel is provided with a third through-hole, and the third through-hole is located directly below the second through-hole.

Further, the second filter screen is fixedly connected to the inner surface of the third through hole.

Further, the conveyor belt device is provided with a rotating shaft, and a rotating rod is connected to both sides of the outer surface of the rotating shaft, and a roller is connected to the middle of the rotating rod, and the conveyor belt device includes a conveyor belt, and the width of the conveyor belt is the same as The height of the rollers is the same.

The utility model has the following beneficial effects:

1. Through the cooperation of the filter device and the hot air blower, through the opening three and the filter screen two, the impurities sucked in the hot air circulation line are completely filtered, which greatly improves the safety and reliability of the product;

2. Through the cooperation of the first circulation channel and the second circulation channel, the energy required for the whole device to work is greatly reduced, saving resources;

3. Through the cooperation of the rotating rod and the roller, the cleanliness of the conveyor belt is ensured and the safety of the product is improved.

Of course, any product implementing the present utility model does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions of the utility model embodiments, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the utility model. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the overall schematic diagram of the utility model;

Fig. 2 is a cross-sectional view of the filter device of the present utility model;

Fig. 3 is a sectional view of the utility model;

Fig. 4 is the rear view of the utility model.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Shell; 2. Hot air blower; 3. Filter device; 301. Filter box; 302. Air inlet pipe; 303. Filter net one; 304. Air outlet pipe; 4. Air guide box; 5. First circulation channel; 6 , the second circulation channel; 7, the conveyor belt device; 701, the rotating shaft; 702, the rotating rod; 703, the drum; 704, the conveyor belt; 8, the first through opening; 9, the second through opening; 11. Filter two.

detailed description

The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the protection scope of the utility model.

In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc. indicate orientation or positional relationship, and are only for convenience of description Utility models and simplified descriptions do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limitations on the utility model.

Please refer to Figs. 1-4, the utility model is a hot air circulation tunnel furnace, which includes a casing 1, a hot air blower 2 is fixedly connected to the upper surface of the casing 1, and a filter is fixedly connected to the left side of the hot air blower 2. Device 3, the left side of the filter device 3 is fixedly connected with the wind guide box 4, the outer shell 1 is fixedly connected with the first circulation passage 5 along the inner surface, and the first circulation passage 5 is fixedly connected with the second circulation passage along the inner surface The channel 6 , a conveyor belt device 7 is fixedly connected inside the housing 1 .

In one embodiment, for the above-mentioned filter device 3, the filter device 3 includes a filter box 301, the right side of the filter box 301 is fixedly connected with an air inlet pipe 302, and the inside of the filter box 301 is fixedly connected with a filter Net one 303, the left side of the filter box 301 is fixedly connected with an air outlet pipe 304, and the round end surface of the air outlet pipe 304 is fixedly connected with the air guide box 4, thereby preliminarily filtering the wind generated by the hot air blower 2, thereby ensuring that the product does not Can be polluted by the impurity that produces when hot air blower 2 blows out. In addition, in specific applications, the filter screen 1 303 should be made of materials with high heat resistance and good adsorption.

In one embodiment, for the above-mentioned wind guide box 4, the wind guide box 4 is an upside-down quadrangular platform, the housing 1 is provided with a through opening 8, and the lower surface of the wind guide box 4 is connected to the through opening. Port 18 is fully fitted, so that the four-sided platform structure can accelerate the conduction speed of hot air, and the hot air guided by the air guide box 4 can enter the drying and circulation system of the shell 1, thereby making the whole device communicate.

In one embodiment, for the above-mentioned first circulation channel 5, the first circulation channel 5 is provided with a second through-hole 9, and the second through-hole 9 is located directly below the first through-hole 8, so that The wind exported from the air guide box 4 can enter the first circulation channel 5 again for circulation, and the hot air can reach through the second opening 9 through the first circulation channel 5, and then the heat energy can be recycled to achieve the purpose of saving resources.

In one embodiment, for the above-mentioned second circulation channel 6, the second circulation channel 6 is provided with a third through-hole 10, and the third through-hole 10 is located directly below the second through-hole 9, so that The hot air can pass through the second circulation channel 6 to reach the through port 3 10, so that heat energy can be recycled and energy consumption can be reduced.

In one embodiment, for the above-mentioned through port three 10, the inner surface of the through port three 10 is fixedly connected with a filter screen two 11, so that when the hot air circulates in the tunnel furnace, it will drive the air at the entrance of the assembly line to enter At this time, the filter screen 2 11 filters out the impurities brought in in the air, thereby ensuring that the product will not be polluted by the impurities in the air. In addition, in specific applications, the filter screen 211 should be made of materials with strong heat resistance and strong adsorption.

In one embodiment, for the above-mentioned conveyor belt device 7, the conveyor belt device 7 is provided with a rotating shaft 701, and the outer surface of the rotating shaft 701 is rotatably connected with a rotating rod 702 on both sides, and the middle of the rotating rod 702 is rotatably connected with a The drum 703, the conveyor belt device 7 includes a conveyor belt 704, the width of the conveyor belt 704 is the same as the height of the drum 703, so that the rotation of the rotating shaft 701 drives the rotation of the conveyor belt 704, and the product is sent to the through port three 10 times, and the drying At the end of drying, the rotary rod 702 can be rotated so that the cylinder 703 and the conveyor belt 704 can be attached for cleaning, thereby ensuring the cleanliness of the conveyor belt 704 during the next work and improving the safety of the product.

To sum up, with the help of the above-mentioned technical solution of the present utility model, the product is sent to the through opening three 10 times by starting the conveyor belt 704, and the hot air blower 2 is started, and the hot air blower 2 drives the hot air into the filter device 3, and passes through the air inlet pipe 302 Enter the filter box 301, and perform the first filtration when the hot air passes through the filter screen one 303. At this time, the impurities in the hot air blower 2 are filtered out, which improves the safety of the product. The hot air enters the air guide box 4 through the air outlet pipe 304, and passes through the air guide box. The guide of 4 enters the shell 1 to heat the product. During the heating process, the hot air in the tunnel furnace first enters the first circulation channel 5 for circulation, reaches the through opening 3 10, and passes through the filter screen 2 11 for the second filtration. At this time, the impurities in the outside air brought by the hot air circulation are filtered out to ensure the safety of the product. The hot air can also enter the second circulation channel 6 for circulation, reach the through opening 29, and pass through the air guide box 4. The guide heats the product again, and filters it for the second time through the filter screen 2 11 simultaneously. After the work, the rotating rod 702 can be rotated to clean the conveyor belt 704 to ensure that the conveyor belt 704 is clean and tidy.

Through the above technical scheme, 1. Through the cooperation of the filter device 3 and the hot air blower 2, through the opening 3 10 and the filter screen 2 11, the impurities sucked in the hot air circulation line are completely filtered, which greatly improves the safety and reliability of the product 2. Through the cooperation of the first circulation channel 5 and the second circulation channel 6, the energy required for the whole device to work is greatly reduced, saving resources; 3. Through the cooperation of the rotating rod 702 and the roller 703, it is guaranteed The cleanliness of the conveyor belt 704 improves the safety of products.

In the description of this specification, descriptions referring to the terms "one embodiment", "example", "specific example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one aspect of the utility model. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not exhaust all details, nor do they limit the utility model to the specific implementations described. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that those skilled in the art can well understand and utilize the utility model. The utility model is to be limited only by the claims, along with their full scope and equivalents.

Claims (7)

1. A hot air circulation tunnel furnace, includes shell (1), its characterized in that: the air heater is characterized in that an air heater (2) is fixedly connected to the right side of the upper surface of the shell (1), a filtering device (3) is fixedly connected to the left side of the air heater (2), an air guide box (4) is fixedly connected to the left side of the filtering device (3), a first circulating channel (5) is fixedly connected to the periphery of the inner surface of the shell (1), a second circulating channel (6) is fixedly connected to the inner surface of the first circulating channel (5), and a conveyor belt device (7) is fixedly connected to the inner portion of the shell (1).

2. The hot air circulation tunnel furnace according to claim 1, wherein the filtering device (3) comprises a filtering box (301), an air inlet pipe (302) is fixedly connected to the right side of the filtering box (301), a first filtering net (303) is fixedly connected to the inside of the filtering box (301), an air outlet pipe (304) is fixedly connected to the left side of the filtering box (301), and the round end face of the air outlet pipe (304) is fixedly connected with the air guide box (4).

3. A hot-air circulation tunnel furnace according to claim 1, characterized in that the air guide box (4) is an inverted quadrangular frustum pyramid, the housing (1) is provided with a first through opening (8), and the lower surface of the air guide box (4) is completely attached to the first through opening (8).

4. A hot-air circulation tunnel furnace according to claim 3, characterized in that the first circulation channel (5) is provided with a second through opening (9), the second through opening (9) being located directly below the first through opening (8).

5. A hot-air circulating tunnel furnace according to claim 4, characterized in that the second circulating channel (6) is provided with a third through opening (10), the third through opening (10) being located directly below the second through opening (9).

6. The hot air circulation tunnel furnace according to claim 5, wherein a second filter screen (11) is fixedly connected to the inner surface of the third through opening (10).

7. The hot air circulation tunnel furnace according to claim 1, wherein the conveyor belt device (7) is provided with a rotating shaft (701), rotating rods (702) are rotatably connected to two sides of the outer surface of the rotating shaft (701), a roller (703) is rotatably connected to the middle of the rotating rods (702), the conveyor belt device (7) comprises a conveyor belt (704), and the width of the conveyor belt (704) is the same as the height of the roller (703).

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