A four-pass tunnel furnace

Abstract

The utility model discloses a four -channel tunnel furnace relates to the technical field of tunnel furnace, include: frame is provided with work chamber and heat source on the frame, and heat source is used for providing heat to work chamber, be provided with four parallelly arranged conveying track on the frame, four conveying tracks all from the first side of work chamber and go in, four conveying tracks all from the second side of work chamber and go out, and the first side with second side opposite setting, be provided with a plurality of bearing station on conveying track, the utility model discloses when processing, place material on bearing station, through setting up four parallel conveying track, respectively bearing station carries on the transportation, will bearing station box work chamber and convey or will bearing station and convey work chamber, through heat source provides heat to work chamber, processes the material in work chamber, because setting up four parallel conveying track, can carry out conveying work simultaneously, has improved the processing efficiency significantly.

Description

Technical Field

[0001] This utility model relates to the field of tunnel furnace technology, specifically a four-channel tunnel furnace. Background Technology

[0002] A tunnel furnace is a tunnel-type mechanical device that achieves continuous baking through heat conduction, convection, and radiation. Its furnace body is typically 6-80 meters long, and it integrates a conveyor system with electric heating elements or combustion rods, characterized by high production efficiency and stable baking quality. The reciprocating tunnel pyrolysis furnace used in ecological restoration projects has a total length of 42.6 meters and consists of a head, tail, outer shell, inner liner, and combustion system.

[0003] Most tunnel furnaces currently used in the market are single-channel, with materials entering and exiting in a single manner, resulting in low operating efficiency.

[0004] Therefore, a four-channel tunnel furnace is needed. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model solves the problem using the following technical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A four-channel tunnel furnace includes: a frame, on which a working chamber and a heat source are disposed, the heat source being used to provide heat to the working chamber; The frame is provided with four parallel conveying tracks, all four of which enter from the first side of the working chamber and exit from the second side of the working chamber, with the first side and the second side being opposite to each other. Each of the conveying tracks is equipped with several carrying stations.

[0007] The heat source includes several hot air fans installed at the top of the working chamber.

[0008] The frame is provided with an exhaust chamber on both the first and second sides of the working chamber. The frame is provided with a suction hood in each of the two exhaust chambers. The air inlet of the suction hood is connected to the exhaust chamber. An exhaust fan is provided at the air outlet of the suction hood. The four conveying tracks pass through the two exhaust chambers.

[0009] Four independent material inlets and outlets are provided between the extraction chamber and the working chamber, and on the side of the extraction chamber away from the working chamber. Each of the entrances and exits is equipped with a door assembly for opening and closing the entrances and exits.

[0010] The door assembly includes a door and a first drive unit. The door is slidably mounted on the frame and positioned above the conveying track. The first drive unit is used to drive the door to move up and down.

[0011] The frame is equipped with slide rails on both sides of the inlet and outlet, and the two sides of the door are respectively locked onto the two slide rails.

[0012] The frame is provided with a transfer track at both ends of the four conveying tracks. The transfer track is used to transport the carrying station to one of the conveying tracks or to receive the carrying station on all four conveying tracks.

[0013] Each of the conveying tracks is provided with a plurality of blocking components, which are arranged sequentially along the conveying direction of the conveying track. Each blocking component includes a stop block and a second driving member. The stop block is disposed in the working chamber, and the second driving member is used to drive the stop block to perform lifting and lowering movements.

[0014] The conveyor track is a double-speed chain.

[0015] Each of the aforementioned workstations is equipped with a positioning optical fiber.

[0016] The above-described structure of this utility model can achieve the following beneficial effects: During processing, the material is placed on the carrying station and transported by four parallel conveyor tracks, which transport the material into or out of the working chamber. Heat is supplied to the working chamber by a heat source to process the material inside. Because of the four parallel conveyor tracks, the conveying work can be carried out simultaneously, which significantly improves the processing efficiency. The conveying directions of the four conveying tracks can be set so that two conveying tracks face the first side and the other two conveying tracks face the second side. The advantage of this setting is that the carrying station is assigned to one of the conveying tracks by the transfer track on one side. When the carrying station moves to the transfer track on the other side, the transfer track assigns the carrying station to the conveying track moving in the opposite direction, so that the material re-enters the working chamber for processing. In this way, the heating time of the material can be increased without extending the length of the conveying track, and the installation space requirements of the equipment can be reduced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 This is a schematic diagram of the internal structure of this embodiment; Figure 3 This is a schematic diagram of the door structure in this embodiment; Figure 4 for Figure 2 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the structure of the stop and the bearing station in this embodiment.

[0018] Figure Labels 1. Conveying track; 2. Loading station; 3. Hot air blower; 4. Suction hood; 5. Exhaust fan; 6. Door; 7. Slide rail; 8. Transfer track; 9. Stop block. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0021] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0022] refer to Figures 1-3 The four-channel tunnel furnace shown includes: a frame, on which a working chamber and a heat source are disposed, the heat source being used to provide heat to the working chamber; The frame is equipped with four parallel conveyor tracks 1. All four conveyor tracks 1 enter from the first side of the working chamber and exit from the second side of the working chamber. The first side and the second side are arranged opposite to each other. Several carrying stations are set up on the conveyor rails.

[0023] Based on the above structure, during processing, the material is placed on the carrying station 2, and transported by four parallel conveying tracks 1, which are respectively carried by the carrying station 2 to transport the material into or out of the working chamber. Heat is provided to the working chamber by a heat source to process the material in the working chamber. Since four parallel conveying tracks 1 are set up, the conveying work can be carried out simultaneously, which significantly improves the processing efficiency.

[0024] like Figure 1 and Figure 2 As shown, the heat source includes several hot air blowers 3 installed at the top of the working chamber. The hot air blowers 3 are arranged in a rectangular array at the top of the working chamber to process the material passing through the bottom of the working chamber.

[0025] Further optimizations include, for example Figure 1 and Figure 2 As shown, the frame has exhaust chambers on the first and second sides of the working chamber. The frame has suction hoods 4 in both exhaust chambers. The air inlet of the suction hood 4 is connected to the exhaust chamber. The air outlet of the suction hood 4 is equipped with an exhaust fan 5. The outlet of the exhaust fan 5 is connected to the pipeline. Four conveying tracks 1 pass through the two exhaust chambers. The advantage of this arrangement is that when the material is processed and enters the exhaust chamber, the exhaust fan 5 performs work to extract the exhaust gas and hot air from the exhaust chamber, preventing the material from directly entering the outside at high temperature, causing pollution and danger.

[0026] like Figure 2 and Figure 3 As shown, four independent material inlets and outlets are provided between the extraction chamber and the working chamber, and on the side of the extraction chamber away from the working chamber. Each inlet and outlet is equipped with a door assembly for opening and closing. Thus, through these independently configured material inlets and outlets, the four conveyor tracks 1 can operate independently. When material enters or exits the extraction chamber or the working chamber, the corresponding door assembly opens or closes the inlet and outlet. This provides a sealing and insulation function, isolating the external environment from the extraction chamber or the working chamber.

[0027] Among them, such as Figure 2 and Figure 3 As shown, the door assembly includes a door 6 and a first drive unit. The door 6 is slidably mounted on the frame and is positioned above the conveyor rail 1. The first drive unit is used to drive the door 6 to move up and down. The frame is provided with slide rails 7 on both sides of the inlet and outlet. The two sides of the door 6 are respectively locked onto the two slide rails 7. In this way, the slide rails 7 limit the sliding of the door 6, while the first drive unit is used to provide power to drive the door to open and close.

[0028] like Figure 1 and Figure 2As shown, the frame is equipped with transfer rails 8 at both ends of the four conveyor rails 1. The transfer rails 8 are used to transport the carrying station 2 to one of the conveyor rails 1 or to receive the carrying station 2 from all four conveyor rails 1. By setting transfer rails 8 at both ends of the four conveyor rails 1, the carrying station 2 enters from one end of the transfer rail 8 and is distributed to the four conveyor rails 1 via the transfer rails 8, thus serving a material distribution function. Furthermore, the conveying direction of the four conveyor rails 1 can be set so that two conveyor rails 1 are conveyed towards a first side, and the other two conveyor rails 1 are conveyed towards a second side. The advantage of this setting is that the carrying station 2 can be moved from one side of the transfer rail 8 (which is equipped with a pushing component for transferring the material from the transfer rail 8) to the other side. The material is pushed onto one of the conveying tracks 1, and the transfer track 8 is also equipped with a limiting component to limit the carrying station 2, so that the carrying station 2 can stop at the end of any of the conveying tracks 1. The carrying station 2 is assigned to one of the conveying tracks 1. When the carrying station 2 moves to the transfer track 8 on the other side, the transfer track 8 assigns the carrying station 2 to the conveying track 1 that moves in the opposite direction, so that the material re-enters the working chamber for processing (that is, the movement trajectory of the material is U-shaped). In this way, the heating time of the material can be increased without extending the length of the conveying track 1, and the installation space requirement of the equipment can be reduced. The transfer track 8 is set outside the working chamber and the exhaust chamber to avoid damage to electrical components by high temperature.

[0029] like Figure 2 , Figure 4 and Figure 5 As shown, several blocking components are provided at each conveying track 1. The blocking components are arranged sequentially along the conveying direction of the conveying track 1. The blocking components include a stop block 9 and a second driving component. The stop block 9 is located in the working chamber. The second driving component is used to drive the stop block 9 to move up and down. By raising and lowering the stop block 9, the bearing station 2 is limited (the stop block 9 is placed on the side of the bearing station 2 closer to the conveying direction), so that the bearing station 2 does not move with the conveying track 1 and stays in a certain position, thus extending the processing time.

[0030] In a further optimization, the conveying track 1 in this embodiment is preferably a double-speed chain.

[0031] A further optimization is that each carrier station 2 is equipped with a positioning optical fiber. In this way, the carrier station 2 can be positioned by the positioning optical fiber, which makes it easier to observe and grasp the processing time and detect faults in a timely manner.

[0032] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that can be directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A four-channel tunnel furnace, characterized in that, include: A frame, on which a working chamber and a heat source are provided, the heat source being used to provide heat to the working chamber; The frame is provided with four parallel conveying tracks (1), all four conveying tracks (1) enter from the first side of the working chamber and all four conveying tracks (1) exit from the second side of the working chamber, with the first side and the second side being arranged opposite to each other; Each of the conveying tracks is equipped with several carrying stations (2).

2. A four-channel tunnel furnace according to claim 1, characterized in that: The heat source includes several hot air fans (3) installed at the top of the working chamber.

3. A four-channel tunnel furnace according to claim 1, characterized in that: The frame is provided with an exhaust chamber on the first side and the second side of the working chamber. The frame is provided with a suction hood (4) at each of the two exhaust chambers. The air inlet of the suction hood (4) is connected to the exhaust chamber. An exhaust fan (5) is provided at the air outlet of the suction hood (4). The four conveying tracks (1) pass through the two exhaust chambers.

4. A four-channel tunnel furnace according to claim 3, characterized in that: Four independent material inlets and outlets are provided between the extraction chamber and the working chamber, and on the side of the extraction chamber away from the working chamber. Each of the entrances and exits is equipped with a door assembly for opening and closing the entrances and exits.

5. A four-channel tunnel furnace according to claim 4, characterized in that: The door assembly includes a door (6) and a first drive member. The door (6) is slidably mounted on the frame and is positioned above the conveying track (1). The first drive member is used to drive the door (6) to move up and down.

6. A four-channel tunnel furnace according to claim 5, characterized in that: The frame is provided with slide rails (7) on both sides of the inlet and outlet, and the two sides of the door (6) are respectively locked on the two slide rails (7).

7. A four-channel tunnel furnace according to claim 1, characterized in that: The frame is provided with a transfer track (8) at both ends of the four conveying tracks (1). The transfer track (8) is used to transport the bearing station (2) to one of the conveying tracks (1) or to receive the bearing station (2) on all four conveying tracks (1).

8. A four-channel tunnel furnace according to claim 1, characterized in that: Each of the conveying tracks (1) is provided with a plurality of blocking components. The plurality of blocking components are arranged sequentially along the conveying direction of the conveying track (1). The blocking component includes a stop block (9) and a second driving member. The stop block (9) is disposed in the working chamber. The second driving member is used to drive the stop block (9) to perform lifting and lowering movements.

9. A four-channel tunnel furnace according to claim 8, characterized in that: The conveying track (1) is a double-speed chain.

10. A four-channel tunnel furnace according to claim 1, characterized in that: Each of the aforementioned workstations (2) is equipped with a positioning optical fiber.

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