Smoke exhaust device for curing oven

Abstract

The utility model discloses a flue gas exhaust device for a curing oven, which comprises two racks, an operating table is arranged at the upper ends of the racks and fixedly connected with the racks, and the curing oven is arranged at the upper end of the operating table and fixedly connected with the operating table; the smoke exhaust pipe is arranged on one side of the upper end of the curing oven, the other end of the smoke exhaust pipe extends into the curing oven, a mounting base is arranged on one side of the outer portion of the smoke exhaust pipe and fixedly connected with the smoke exhaust pipe, an inserting plate is arranged in the mounting base and extends into the smoke exhaust pipe, and the inserting plate is fixedly connected with the smoke exhaust pipe. A filter screen is arranged in the portion, located in the smoke exhaust pipe, of the insertion plate. And the bolts are arranged on the two sides of the upper end of the inserting plate, the bolts penetrate through and extend to the lower portion of the inserting plate, the lower ends of the bolts are in engaged connection with the mounting base through threads, and the problems that impurities in smoke are difficult to filter, and the smoke exhaust pipe is of a fully-open structure are solved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust in curing furnaces, in particular to a smoke exhaust device for curing furnaces. Background Art

[0002] A curing oven is a device used to process materials or products. Its function is to heat and cure the materials or products within a certain temperature range to achieve the desired physical or chemical properties. According to different heating methods and application scenarios, curing ovens can be divided into many types, such as hot air circulation curing ovens, infrared curing ovens, ultraviolet curing ovens, high-temperature sintering curing ovens, etc. Curing ovens are usually composed of the following parts: heating system, temperature control system, conveying system, pneumatic control system and safety protection system. The electronic component manufacturing industry may use a hot air circulation curing oven, while the optical instrument industry may use an infrared curing oven. The smoke exhaust device of the curing oven is usually designed to ensure environmental protection and improve product quality.

[0003] For example, the Chinese patent "A Smoke Collection Device for a Curing Furnace" with announcement number CN210441672U includes a curing furnace, a smoke hood is arranged directly above the curing furnace, a mounting seat is arranged on the right side of the curing furnace, a centrifugal induced draft fan is arranged on the top of the mounting seat, a smoke delivery pipe is connected to the output end of the centrifugal induced draft fan, a smoke treatment device is arranged on the right side of the mounting seat, a water tank is arranged at the bottom of the smoke treatment device, a filter screen is arranged on the front and back sides of the interior of the water tank, a smoke washing cylinder is arranged on the upper middle part of the water tank, water outlet pipes are arranged on the front and back inner walls of the smoke washing cylinder, nozzles are installed at equal intervals on the water outlet pipes, and liquid pumps are arranged on the front and back edges of the upper surface of the water tank. The smoke treatment device of the utility model is provided with a water tank and a smoke washing cylinder, and the lower part of the smoke washing cylinder is connected to the water tank, so that the water after smoke washing can flow back into the water tank.

[0004] Although the above-mentioned prior art can realize the exhaust of smoke from the curing furnace, in actual use, on the one hand, impurities in the smoke are difficult to filter, and the impurities in the smoke are directly discharged into the air along with the smoke, so that the smoke containing impurities will cause pollution to the environment. On the other hand, the smoke exhaust pipe is a fully open structure, and the smoke can be directly discharged through the smoke exhaust pipe. At the same time, the smoke will bring out some heat, causing the temperature inside the curing furnace to decrease, thereby reducing the quality of the product. Therefore, it does not meet the existing needs. In this regard, we propose a smoke exhaust device for a curing furnace. Utility Model Content

[0005] The purpose of the utility model is to provide a smoke exhaust device for a curing furnace, so as to solve the problems proposed in the above-mentioned background technology that impurities in the smoke are difficult to filter, impurities in the smoke are directly discharged into the air along with the smoke, and the smoke is directly discharged into the atmosphere without being treated, thereby causing pollution to the environment, and the smoke exhaust pipe is a fully open structure, the smoke can be directly discharged through the smoke exhaust pipe and the smoke will bring out some heat, resulting in a decrease in the temperature inside the curing furnace.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a smoke exhaust device for a curing furnace, comprising a frame, wherein two frames are provided, an operating table is provided at the upper end of the frame, and the operating table is fixedly connected to the frame, a curing furnace is provided at the upper end of the operating table, and the curing furnace is fixedly connected to the operating table; and further comprising:

[0007] A smoke exhaust pipe is arranged on one side of the upper end of the curing furnace, and the other end of the smoke exhaust pipe extends to the interior of the curing furnace, a mounting seat is arranged on one side of the exterior of the smoke exhaust pipe, and the mounting seat is fixedly connected to the smoke exhaust pipe, a plug plate is arranged inside the mounting seat, and the plug plate extends to the interior of the smoke exhaust pipe, and a filter is arranged inside the plug plate located inside the smoke exhaust pipe;

[0008] Bolts are arranged on both sides of the upper end of the plug plate, the bolts penetrate and extend to the bottom of the plug plate, and the lower end of the bolt is engaged with the mounting seat through a thread.

[0009] Preferably, a mounting bracket is provided on the other side of the outside of the smoke exhaust pipe, a first motor is fixedly provided on the upper end of the mounting bracket, and the output shaft of the first motor extends to the inside of the smoke exhaust pipe, a rotating rod is provided inside the smoke exhaust pipe, the lower end of the rotating rod is rotatably connected to the inner wall of the smoke exhaust pipe, and the upper end of the rotating rod is fixedly connected to the output shaft of the first motor, a valve is fixedly provided on the outside of the rotating rod, and the valve is rotatably matched with the inner wall of the smoke exhaust pipe.

[0010] Preferably, a first mounting groove is provided inside both sides of the curing furnace, a mounting rod is provided inside the first mounting groove, and the mounting rod is fixedly connected to the inner wall of the first mounting groove, and a plurality of rubber curtains are provided outside the mounting rod, the rubber curtains are fitted together, and the rubber curtains are rotatably connected to the mounting rod.

[0011] Preferably, an air inlet pipe is fixedly provided on the other side of the upper end of the curing furnace, and one end of the air inlet pipe extends to the interior of the curing furnace.

[0012] Preferably, a second mounting groove is provided inside the operating table, connecting rods are provided on both sides of the second mounting groove, and the connecting rod on one side is rotatably connected to the inner wall of the second mounting groove, and a second motor is fixedly provided on the other side of the rear end of the operating table, the output shaft of the second motor extends to the inside of the second mounting groove, and the output shaft of the second motor is fixedly connected to the connecting rod on the other side.

[0013] Preferably, a conveyor belt roller is provided outside the connecting rod, and the conveyor belt roller is fixedly connected to the connecting rod.

[0014] Preferably, a conveyor belt is arranged outside the conveyor belt roller, and the conveyor belt rollers on both sides are connected by conveyor belt transmission.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can filter impurities in the flue gas through the mounting seat and the plug plate. When the curing furnace is working, the hot air inside the curing furnace is circulated for heating. At this time, part of the flue gas is discharged through the exhaust pipe. The impurities in the flue gas are intercepted by the filter on the plug plate when passing through the plug plate. At the same time, other substances on the plug plate can absorb volatile harmful gases in the flue gas to complete the cleaning of the flue gas. When the curing furnace completes the curing of the product, the bolt is turned until the bolt is removed. At this time, the plug plate is pulled to separate the plug plate from the mounting seat, and then the plug plate is cleaned. The plug plate after cleaning is reinserted into the mounting seat, and the mounting seat and the plug plate are fixed by bolts to prevent the filter on the plug plate from being blocked due to long-term interception of impurities.

[0017] 2. The utility model can control the exhaust amount of smoke through the first motor and the valve. When the curing furnace is working, the smoke is continuously discharged through the smoke exhaust pipe, and part of the heat in the curing furnace is taken out by the smoke. At this time, the first motor is turned on, so that the output shaft of the first motor drives the rotating rod to rotate, and the rotating rod drives the valve to rotate. The size of the gap for the smoke to pass is controlled by the valve. When the temperature inside the curing furnace is reduced, the gap between the valve and the smoke exhaust pipe is reduced to reduce the smoke exhaust rate. When the temperature inside the curing furnace needs to be reduced, the gap between the valve and the smoke exhaust pipe is expanded while the air inlet temperature is reduced to make the cooling faster.

[0018] 3. The utility model can seal the inlet and outlet of the curing furnace through the rubber curtain and the mounting rod. When the product is being cured, when the product is transported to the inlet of the curing furnace by the conveyor belt, the product pushes the rubber curtain and continues to enter the interior of the curing furnace. At this time, the rubber curtain automatically falls back to its original position by its own weight and fits with other rubber curtains to complete the sealing of the inlet and outlet of the curing furnace, preventing smoke from being directly discharged through the inlet and outlet of the curing furnace and also having a heat preservation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the internal structure of the utility model;

[0020] Figure 2 It is a side view of the internal structure of the utility model;

[0021] Figure 3 It is a partial enlarged view of the thermal insulation structure of the utility model;

[0022] Figure 4 For the utility model Figure 1 A partial enlarged view of area A.

[0023] In the figure: 1, frame; 2, operating table; 3, curing furnace; 4, air inlet pipe; 5, first mounting groove; 6, mounting rod; 7, rubber curtain; 8, smoke exhaust pipe; 9, mounting seat; 10, plug plate; 11, filter screen; 12, bolt; 13, first motor; 14, valve; 15, second mounting groove; 16, connecting rod; 17, conveyor belt roller; 18, conveyor belt; 19, second motor; 20, mounting frame; 21, rotating rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a smoke exhaust device for a curing furnace, comprising a frame 1, and the frame 1 is provided with two, the upper end of the frame 1 is provided with an operating table 2, and the operating table 2 is fixedly connected to the frame 1, and the upper end of the operating table 2 is provided with a curing furnace 3, and the curing furnace 3 is fixedly connected to the operating table 2; and further comprising:

[0026] A smoke exhaust pipe 8 is arranged at one side of the upper end of the curing furnace 3, and the other end of the smoke exhaust pipe 8 extends to the interior of the curing furnace 3, a mounting seat 9 is arranged at one side of the exterior of the smoke exhaust pipe 8, and the mounting seat 9 is fixedly connected to the smoke exhaust pipe 8, a plug plate 10 is arranged inside the mounting seat 9, and the plug plate 10 extends to the interior of the smoke exhaust pipe 8, and a filter screen 11 is arranged inside the plug plate 10 located inside the smoke exhaust pipe 8;

[0027] Bolts 12 are arranged on both sides of the upper end of the inserting plate 10 . The bolts 12 penetrate and extend to the bottom of the inserting plate 10 , and the lower ends of the bolts 12 are engaged with the mounting seat 9 through threads.

[0028] During use, when the curing furnace 3 is working, the hot air inside the curing furnace 3 circulates for heating. At this time, part of the smoke is discharged through the smoke exhaust pipe 8. The impurities in the smoke are intercepted by the filter screen 11 on the plug board 10 when passing through the plug board 10. At the same time, other substances on the plug board 10 can absorb volatile harmful gases in the smoke to complete the cleaning of the smoke. When the curing furnace 3 completes the curing of the product, the bolt 12 is rotated until the bolt 12 is removed. At this time, the plug board 10 is pulled to separate the plug board 10 from the mounting seat 9, and then the plug board 10 is cleaned. The plug board 10 after cleaning is reinserted into the mounting seat 9, and the mounting seat 9 and the plug board 10 are fixed by the bolt 12.

[0029] See also Figure 1 and Figure 4 A mounting bracket 20 is provided on the other side of the outside of the smoke exhaust pipe 8, a first motor 13 is fixedly provided on the upper end of the mounting bracket 20, and the output shaft of the first motor 13 extends to the inside of the smoke exhaust pipe 8, a rotating rod 21 is provided inside the smoke exhaust pipe 8, the lower end of the rotating rod 21 is rotatably connected to the inner wall of the smoke exhaust pipe 8, and the upper end of the rotating rod 21 is fixedly connected to the output shaft of the first motor 13, a valve 14 is fixedly provided on the outside of the rotating rod 21, and the valve 14 is rotatably matched with the inner wall of the smoke exhaust pipe 8, so as to facilitate the adjustment of the gap size between the valve 14 and the smoke exhaust pipe 8.

[0030] See also Figure 1 and Figure 3 A first mounting groove 5 is provided inside both sides of the curing furnace 3, a mounting rod 6 is provided inside the first mounting groove 5, and the mounting rod 6 is fixedly connected to the inner wall of the first mounting groove 5, and a plurality of rubber curtains 7 are provided outside the mounting rod 6, the rubber curtains 7 fit each other, and the rubber curtains 7 are rotatably connected to the mounting rod 6, and the rubber curtains 7 are made of fluororubber, which is convenient for closing the entrance and exit of the curing furnace 3.

[0031] See also Figure 1 An air inlet pipe 4 is fixedly provided on the other side of the upper end of the curing furnace 3, and one end of the air inlet pipe 4 extends to the interior of the curing furnace 3, so as to heat the interior of the curing furnace 3.

[0032] See also Figure 1 and Figure 2 A second mounting groove 15 is provided inside the operating table 2, connecting rods 16 are provided on both sides of the second mounting groove 15, and the connecting rod 16 on one side is rotatably connected to the inner wall of the second mounting groove 15, and a second motor 19 is fixedly provided on the other side of the rear end of the operating table 2, and the output shaft of the second motor 19 extends to the inside of the second mounting groove 15, and the output shaft of the second motor 19 is fixedly connected to the connecting rod 16 on the other side, so that the connecting rod 16 can be driven to rotate by the second motor 19.

[0033] See also Figure 1A conveyor belt roller 17 is arranged outside the connecting rod 16, and the conveyor belt roller 17 is fixedly connected to the connecting rod 16, so that the connecting rod 16 can drive the conveyor belt roller 17 to rotate.

[0034] See also Figure 1 A conveyor belt 18 is arranged outside the conveyor belt roller 17 , and the conveyor belt rollers 17 on both sides are connected by the conveyor belt 18 , so that the product can be driven to move to the inside of the curing furnace 3 by the conveyor belt 18 .

[0035] Working principle: When the curing furnace 3 is working, the smoke is continuously discharged through the smoke exhaust pipe 8, and part of the heat in the curing furnace 3 is taken out by the smoke. At this time, the first motor 13 is turned on, so that the output shaft of the first motor 13 drives the rotating rod 21 to rotate, and the rotating rod 21 drives the valve 14 to rotate. The size of the gap for the smoke to pass is controlled by the valve 14. When the temperature inside the curing furnace 3 decreases, the gap between the valve 14 and the smoke exhaust pipe 8 is reduced to reduce the smoke exhaust rate. When it is necessary to lower the temperature inside the curing furnace 3, the gap between the valve 14 and the smoke exhaust pipe 8 is enlarged while lowering the air inlet temperature. When the product is being cured, when the product is transported to the entrance of the curing furnace 3 by the conveyor belt 18, the product pushes the rubber curtain 7 and continues to enter the interior of the curing furnace 3. At this time, the rubber curtain 7 automatically falls back to its original position by its own weight and fits with other rubber curtains 7 to complete the closure of the entrance and exit of the curing furnace 3.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A smoke exhaust device for a curing furnace, comprising a frame (1), wherein two frames (1) are provided, an operating table (2) is provided at the upper end of the frame (1), and the operating table (2) is fixedly connected to the frame (1), and a curing furnace (3) is provided at the upper end of the operating table (2), and the curing furnace (3) is fixedly connected to the operating table (2); Features: Also includes: A smoke exhaust pipe (8) is arranged on one side of the upper end of the curing furnace (3), and the other end of the smoke exhaust pipe (8) extends to the interior of the curing furnace (3); a mounting seat (9) is arranged on one side of the exterior of the smoke exhaust pipe (8), and the mounting seat (9) is fixedly connected to the smoke exhaust pipe (8); a plug plate (10) is arranged inside the mounting seat (9), and the plug plate (10) extends to the interior of the smoke exhaust pipe (8); a filter screen (11) is arranged inside the plug plate (10) located inside the smoke exhaust pipe (8); Bolts (12) are arranged on both sides of the upper end of the plug plate (10). The bolts (12) penetrate and extend to the bottom of the plug plate (10), and the lower end of the bolt (12) is connected to the mounting seat (9) through threaded engagement.

2. The smoke exhaust device for a curing furnace according to claim 1, characterized in that: A mounting frame (20) is provided on the other side of the outside of the smoke exhaust pipe (8), a first motor (13) is fixedly provided on the upper end of the mounting frame (20), and an output shaft of the first motor (13) extends into the interior of the smoke exhaust pipe (8), a rotating rod (21) is provided inside the smoke exhaust pipe (8), a lower end of the rotating rod (21) is rotatably connected to the inner wall of the smoke exhaust pipe (8), and an upper end of the rotating rod (21) is fixedly connected to the output shaft of the first motor (13), a valve (14) is fixedly provided on the outside of the rotating rod (21), and the valve (14) is rotatably matched with the inner wall of the smoke exhaust pipe (8).

3. The smoke exhaust device for a curing furnace according to claim 1, characterized in that: First mounting grooves (5) are arranged inside both sides of the curing furnace (3), mounting rods (6) are arranged inside the first mounting grooves (5), and the mounting rods (6) are fixedly connected to the inner wall of the first mounting grooves (5), and a plurality of rubber curtains (7) are arranged outside the mounting rods (6), the rubber curtains (7) are fitted to each other, and the rubber curtains (7) are rotatably connected to the mounting rods (6).

4. The smoke exhaust device for a curing furnace according to claim 1, characterized in that: An air inlet pipe (4) is fixedly arranged on the other side of the upper end of the curing furnace (3), and one end of the air inlet pipe (4) extends to the interior of the curing furnace (3).

5. The smoke exhaust device for a curing furnace according to claim 1, characterized in that: A second mounting groove (15) is provided inside the operating table (2), connecting rods (16) are provided on both sides of the second mounting groove (15), and the connecting rod (16) on one side is rotatably connected to the inner wall of the second mounting groove (15), and a second motor (19) is fixedly provided on the other side of the rear end of the operating table (2), the output shaft of the second motor (19) extends into the second mounting groove (15), and the output shaft of the second motor (19) is fixedly connected to the connecting rod (16) on the other side.

6. The smoke exhaust device for a curing furnace according to claim 5, characterized in that: A conveyor belt roller (17) is arranged outside the connecting rod (16), and the conveyor belt roller (17) is fixedly connected to the connecting rod (16).

7. The smoke exhaust device for a curing furnace according to claim 6, characterized in that: A conveyor belt (18) is arranged outside the conveyor belt roller (17), and the conveyor belt rollers (17) on both sides are connected by transmission through the conveyor belt (18).

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