Tunnel furnace tail gas purification heat recovery device

Abstract

The invention discloses a tunnel furnace tail gas purification heat recovery device which comprises a box body, a first vertical plate and a second vertical plate are fixedly connected between the top and the bottom of the inner wall of the box body from left to right in sequence, and the invention relates to the technical field of tail gas purification. According to the tail gas purification and heat recovery device for the tunnel furnace, tail gas of the tunnel furnace enters the box body, heat carried by the tail gas enters the box body, water flows into the coil pipe through the water inlet pipe, cold water exchanges heat with heat around the coil pipe at the moment, the temperature of the water rises within a short time, and the heat recovery efficiency is improved. The heated water can be discharged through the water outlet pipe of the water suction pump, and the water subjected to heat exchange is used for daily life, such as bath water and domestic water, so that the energy consumption for heating the water is saved, the heat emission is reduced, the urban environment is protected, and the heat recovery advantage is realized; and water vapor is formed and adsorbed in the box body.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas purification, and in particular to a tunnel furnace tail gas purification heat recovery device. Background Art

[0002] The tunnel oven is a tunnel-type mechanical equipment that completes food baking through heat conduction, convection and radiation. The tunnel oven is designed and manufactured using advanced foreign technology and is manufactured by Shanghai Honglian Machinery and Electrical. The heating technology uses far-infrared heating technology, the heating elements are arranged reasonably, and the energy consumption is low. The oven body is generally very long, with a minimum of 6 meters and a maximum of 60-80 meters. The baking chamber is a narrow tunnel with a width of generally 80cm to 140cm. There is a continuously operating conveying system in the tunnel. When food is baked, the food produces relative movement between the conveyor chain plate, steel belt or mesh belt and the electric heating element or direct-burning combustion rod, thereby completing the work of uniform baking and conveying. This type of oven can be produced continuously, has high production efficiency, saves manpower, and has stable baking quality. The tunnel oven is mainly used in food enterprises with industrialized production, characterized by large-scale continuous or intermittent baking. It is usually rated for power input>24KW and is operated by full-time personnel.

[0003] The exhaust gas of the high-temperature tunnel furnace contains a large amount of dust particles and a few chemical substances that pollute the air. It usually needs to be purified before being discharged into the air. Most of the high-temperature tunnel furnaces have relatively simple exhaust gas purification methods. The dust treatment in the exhaust gas is not very clean. There will still be a small amount of dust discharged into the atmosphere to pollute the atmosphere. In addition, the exhaust gas of the tunnel furnace contains a lot of heat, which is directly discharged into the air, resulting in a waste of heat energy. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a tunnel furnace tail gas purification heat recovery device, which solves the problems mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a tunnel furnace exhaust gas purification heat recovery device, comprising a box body, a first vertical plate and a second vertical plate are fixedly connected between the top and the bottom of the inner wall of the box body from left to right in sequence, one side of the box body is connected to a water inlet pipe, and the end of the water inlet pipe extending to the inside of the box body is connected to a coil, the bottom of the surface of the water inlet pipe is connected to an L-shaped spray pipe, one side of the box body and below the water inlet pipe is connected to an air inlet pipe, one side of the box body and above the water inlet pipe is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a threaded rod, and the surface of the threaded rod is threadedly connected to a slider, the top of the slider is fixedly connected to an outer shell, and one side of the outer shell is rotatably connected to a baffle, one side of the first vertical plate is fixedly connected to a push rod, and a through groove is provided inside the first vertical plate and below the push rod.

[0006] Preferably, an inclined plate is fixedly connected to the bottom of the inner wall of the through groove, and one end of the coil passes through the box body and extends to the outside of the box body.

[0007] Preferably, a conduit is connected to the middle of the first vertical plate, and a filter plate is arranged at the bottom of the first vertical plate.

[0008] Preferably, the second vertical plate is connected with a Z-shaped pipe, and one end of the Z-shaped pipe is fixedly connected with an air intake hopper, and the back side of the box body and located between the first vertical plate and the second vertical plate is connected with a drainage pipe.

[0009] Preferably, a second motor is fixedly connected to the other side of the box, and a fixing rod is fixedly connected to the output end of the second motor, one end of the fixing rod passes through the box and extends to the interior of the box, and the end of the fixing rod extending to the interior of the box is rotatably connected to one side of the second vertical plate.

[0010] Preferably, an outer frame is fixedly connected to the surface of the fixing rod, and a filter plate is arranged inside the outer frame. The number of the outer frames is six and they are distributed in a ring shape. An inspection door is hinged on the surface of the box body at a position corresponding to the filter plate through a hinge.

[0011] Preferably, an exhaust fan is fixedly connected to one side of the box and located above the second motor, the air inlet of the exhaust fan is connected to an air inlet pipe, one end of the air inlet pipe passes through the box and extends to the interior of the box, and the air outlet of the exhaust fan is connected to an air outlet pipe.

[0012] Beneficial Effects

[0013] The present invention provides a tunnel furnace tail gas purification heat recovery device. Compared with the prior art, it has the following beneficial effects:

[0014] The tunnel furnace exhaust gas purification heat recovery device is fixedly connected with a first vertical plate and a second vertical plate in sequence from left to right through the top and bottom of the inner wall of the box body, a water inlet pipe is connected to one side of the box body, and the end of the water inlet pipe extending to the inside of the box body is connected to the coil, and the bottom of the surface of the water inlet pipe is connected to an L-shaped spray pipe, and an air inlet pipe is connected to one side of the box body and located below the water inlet pipe, and a first motor is fixedly connected to one side of the box body and located above the water inlet pipe, and a threaded rod is fixedly connected to the output end of the first motor, and a slider is threadedly connected to the surface of the threaded rod, and the top of the slider is fixedly connected to the shell, and the tunnel furnace exhaust gas enters the inside of the box body, and the heat carried by the exhaust gas enters the inside of the box body, and water flows into the inside of the coil through the water inlet pipe. At this time, the cold water and the heat around the coil are heat-exchanged, so that the temperature of the water rises in a short time, and the heated water can be discharged through the outlet pipe of the water pump, and the heat-exchanged water is used in daily life, such as bathing water and domestic water, which not only saves the energy consumption of heating water, but also reduces the heat emission, and protects the urban environment;

[0015] It has the advantage of heat recovery. When the water source inside the coil is heated, water vapor will be formed and adsorbed inside the box. The water vapor on the top of the box is collected by the moving outer shell, and the collected water vapor is reused to filter impurities in the exhaust gas. The exhaust gas is filtered by water and then filtered by a rotating filter plate before being discharged, reducing air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the structure of the present invention;

[0017] Figure 2 is a cross-sectional view of the structure of the present invention;

[0018] Figure 3 is a three-dimensional diagram of the housing structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the coil of the present invention;

[0020] Figure 5 A top view of the filter plate structure of the present invention;

[0021] Figure 6 For the present invention Figure 2 A partial enlarged view of point A in the middle.

[0022] In the figure: 1-box, 2-first vertical plate, 3-second vertical plate, 4-water inlet pipe, 5-coil, 6-L-type spray pipe, 7-air inlet pipe, 8-first motor, 9-threaded rod, 10-slider, 11-housing, 12-baffle, 13-push rod, 14-through groove, 15-inclined plate, 16-conduit, 17-filter plate, 18-Z-tube, 19-inlet hopper, 20-drain pipe, 21-second motor, 22-fixing rod, 23-outer frame, 24-filter plate, 25-inspection door, 26-exhaust fan, 27-air inlet pipe, 28-air outlet pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-6The present invention provides a technical solution: a tunnel furnace exhaust gas purification heat recovery device, comprising a box body 1, a first vertical plate 2 and a second vertical plate 3 are fixedly connected between the top and the bottom of the inner wall of the box body 1 from left to right in sequence, a water inlet pipe 4 is connected to one side of the box body 1, and the end of the water inlet pipe 4 extending to the inside of the box body 1 is connected to a coil 5, and the bottom of the surface of the water inlet pipe 4 is connected to an L-shaped spray pipe 6, and an air inlet pipe 7 is connected to one side of the box body 1 and below the water inlet pipe 4, and a first motor 8 is fixedly connected to one side of the box body 1 and above the water inlet pipe 4, a threaded rod 9 is fixedly connected to the output end of the first motor 8, and a slider 10 is threadedly connected to the surface of the threaded rod 9, a shell 11 is fixedly connected to the top of the slider 10, and a baffle 12 is rotatably connected to one side of the shell 11, a push rod 13 is fixedly connected to one side of the first vertical plate 2, and a through groove 14 is opened inside the first vertical plate 2 and below the push rod 13.

[0025] Specifically, the first motor 8 is a three-phase asynchronous motor that can perform forward and reverse rotation.

[0026] Specifically, the outer shell 11 is generally L-shaped, and the top thereof is closely attached to the top of the inner wall of the box body 1 .

[0027] In the present invention, an inclined plate 15 is fixedly connected to the bottom of the inner wall of the through groove 14 , and one end of the coil 5 passes through the box body 1 and extends to the outside of the box body 1 .

[0028] In the present invention, a conduit 16 is connected to the middle of the first vertical plate 2 , and a filter plate 17 is provided at the bottom of the first vertical plate 2 .

[0029] Specifically, the filter plate 17 filters the impurities that are sprayed and sank to prevent them from entering the second filtering process, and the filter plate 17 can be pulled out from the outside of the box body 1 for cleaning.

[0030] In the present invention, a Z-shaped pipe 18 is connected to the second vertical plate 3 , and an air intake scoop 19 is fixedly connected to one end of the Z-shaped pipe 18 . A drainage pipe 20 is connected to the back of the box body 1 and located between the first vertical plate 2 and the second vertical plate 3 .

[0031] Specifically, a valve is disposed inside the drain pipe 20 .

[0032] In the present invention, a second motor 21 is fixedly connected to the other side of the box body 1, and a fixing rod 22 is fixedly connected to the output end of the second motor 21. One end of the fixing rod 22 passes through the box body 1 and extends to the interior of the box body 1. The end of the fixing rod 22 extending to the interior of the box body 1 is rotatably connected to one side of the second vertical plate 3.

[0033] In the present invention, the surface of the fixing rod 22 is fixedly connected to an outer frame 23, and a filter plate 24 is arranged inside the outer frame 23. There are six outer frames 23 arranged in a ring-shaped distribution. An inspection door 25 is hinged on the surface of the box body 1 at a position corresponding to the filter plate 24 through a hinge.

[0034] In the present invention, an exhaust fan 26 is fixedly connected to one side of the box body 1 and located above the second motor 21. The air inlet of the exhaust fan 26 is connected to an air inlet pipe 27. One end of the air inlet pipe 27 passes through the box body 1 and extends to the interior of the box body 1. The air outlet of the exhaust fan 26 is connected to an air outlet pipe 28.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] When in use, the exhaust gas of the tunnel furnace enters the interior of the box body 1 through the air inlet pipe 7, the heat carried in the exhaust gas heats the water inside the coil 5, and then is discharged through the coil 5, the water in the L-shaped spray pipe 6 sprays the incoming exhaust gas to reduce dust, and the falling water enters between the first vertical plate 2 and the second vertical plate 3 after being filtered by the filter plate 17, and the water vapor formed by the spraying is adsorbed upward on the top of the inner wall of the box body 1, and the first motor 8 is started by an external switch, the first motor 8 drives the threaded rod 9 to rotate, the threaded rod 9 drives the slider 10 to move, the slider 10 drives the outer shell 11 to move, and the top of the outer shell 11 scrapes off the water vapor;

[0037] Water vapor enters the interior of the shell 11. When the shell 11 moves to the side of the first vertical plate 2, the push rod 13 pushes the baffle 12, and the baffle 12 flips over. The internal water enters between the first vertical plate 2 and the second vertical plate 3 through the inclined plate 15. The sprayed exhaust gas enters between the first vertical plate 2 and the second vertical plate 3 through the conduit. After being filtered by the bottom water, it enters one side of the second vertical plate 3 through the Z-shaped tube 18. The second motor 21 is started by an external switch, and the second motor 21 drives the fixed rod 22 to rotate. The filter plate 24 filters the exhaust gas again and discharges it from the box 1 through the outlet pipe 28 on the exhaust fan 26.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel furnace tail gas purification heat recovery device, comprising a box (1), characterized in that: A first vertical plate (2) and a second vertical plate (3) are fixedly connected in sequence from left to right between the top and bottom of the inner wall of the box body (1); a water inlet pipe (4) is connected to one side of the box body (1); and a coil (5) is connected to one end of the water inlet pipe (4) extending into the interior of the box body (1); an L-shaped spray pipe (6) is connected to the bottom of the surface of the water inlet pipe (4); an air inlet pipe (7) is connected to one side of the box body (1) and below the water inlet pipe (4); and a water inlet pipe (8) is connected to one side of the box body (1) and below the water inlet pipe (4). ) is fixedly connected to the top of a first motor (8), a threaded rod (9) is fixedly connected to the output end of the first motor (8), and a slider (10) is threadedly connected to the surface of the threaded rod (9), the top of the slider (10) is fixedly connected to a housing (11), and a baffle (12) is rotatably connected to one side of the housing (11), a push rod (13) is fixedly connected to one side of the first vertical plate (2), and a through groove (14) is provided inside the first vertical plate (2) and below the push rod (13).

2. The tunnel furnace tail gas purification heat recovery device according to claim 1, characterized in that: An inclined plate (15) is fixedly connected to the bottom of the inner wall of the through groove (14), and one end of the coil (5) passes through the box body (1) and extends to the outside of the box body (1).

3. The tunnel furnace tail gas purification heat recovery device according to claim 1, characterized in that: The middle of the first vertical plate (2) is connected to a conduit (16), and a filter plate (17) is arranged at the bottom of the first vertical plate (2).

4. The tunnel furnace tail gas purification heat recovery device according to claim 1, characterized in that: The second vertical plate (3) is connected to a Z-shaped pipe (18), and one end of the Z-shaped pipe (18) is fixedly connected to an air intake hopper (19). The back of the box body (1) and located between the first vertical plate (2) and the second vertical plate (3) is connected to a drainage pipe (20).

5. The tunnel furnace tail gas purification heat recovery device according to claim 1, characterized in that: A second motor (21) is fixedly connected to the other side of the box body (1), and a fixing rod (22) is fixedly connected to the output end of the second motor (21), one end of the fixing rod (22) passes through the box body (1) and extends to the interior of the box body (1), and the end of the fixing rod (22) extending to the interior of the box body (1) is rotatably connected to one side of the second vertical plate (3).

6. The tunnel furnace tail gas purification heat recovery device according to claim 5, characterized in that: The surface of the fixing rod (22) is fixedly connected to an outer frame (23), and a filter plate (24) is arranged inside the outer frame (23). The number of the outer frames (23) is six and they are distributed in a ring shape. An inspection door (25) is hingedly connected to the surface of the box body (1) at a position corresponding to the filter plate (24) through a hinge.

7. The tunnel furnace tail gas purification heat recovery device according to claim 5, characterized in that: An exhaust fan (26) is fixedly connected to one side of the box body (1) and located above the second motor (21); an air inlet of the exhaust fan (26) is connected to an air inlet pipe (27); one end of the air inlet pipe (27) passes through the box body (1) and extends to the interior of the box body (1); and an air outlet of the exhaust fan (26) is connected to an air outlet pipe (28).

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