Heat recovery type curing oven

Abstract

The utility model discloses a heat recovery type curing oven which comprises a discharge pipeline, the inner wall of the discharge pipeline is fixedly connected with a filter screen, the bottom of the discharge pipeline is provided with an air return port, the top end of the discharge pipeline is fixedly connected with a rotating motor, and the output end of the rotating motor is fixedly connected with a connecting shaft. According to the utility model, the electromagnetic valve in the discharge pipeline is opened, so that gas after curing and use enters the discharge pipeline, the gas passes through the filter screen, dust particles in the gas are blocked on the filter screen, the rotating motor is started, the connecting shaft drives the convex edge block to rotate, and the convex edge block is in contact with the filter screen and extrudes the filter screen after rotating by a certain angle; and when the rib blocks are separated from the filter screen, the filter screen vibrates, so that dust particles are shaken off from the filter screen, normal use of the filter screen is guaranteed, the pumping pump is started after collection is completed, the gas is pumped into the curing oven body again through the air return pipe, and secondary utilization of redundant oxygen and heat in the gas is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of curing furnaces, in particular to a heat recovery curing furnace. Background Art

[0002] Curing refers to the production process of heating components, curing resin and drying resin in order to enhance the stress of material bonding in the electronics industry and various other industries. The container for curing is called a curing oven, which is suitable for the production process of heating components, curing resin and drying resin in the electronics industry and various other industries.

[0003] When the curing oven is curing the heated object, air or oxygen is introduced into the curing oven and heated by the heating plate to achieve curing of the heated object. After the curing is completed, the gas in the curing oven will be discharged to the outside through the exhaust pipe. Since the exhaust gas contains heat and dust particles, it is easy to cause environmental pollution if it is directly discharged into the air. In addition, the heat is dissipated to the outside, which reduces the utilization rate of resources. Utility Model Content

[0004] The purpose of the present invention is to provide a heat recovery curing furnace to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat recovery curing furnace, comprising a discharge pipe, a filter screen fixedly connected to the inner wall of the discharge pipe, a return air port opened at the bottom of the discharge pipe, a rotating motor fixedly connected to the top of the discharge pipe, a connecting shaft fixedly connected to the output end of the rotating motor, a convex ridge fixedly connected to the surface of the connecting shaft, a collecting box fixedly connected to the bottom end of the discharge pipe, a pumping pump fixedly connected to the back of the collecting box, and a return air duct fixedly connected to the side of the pumping pump away from the collecting box.

[0006] As a further preferred embodiment of the present technical solution, the connecting shaft passes through the discharge pipe and extends into the interior thereof, the connecting shaft and the convex ridge block are located on the side of the return air outlet away from the filter, and the collecting box is located directly below the return air outlet.

[0007] As a further preferred embodiment of the present technical solution, the top end of the discharge pipe is fixedly connected to a cooling water tank, the side of the cooling water tank away from the rotating motor is fixedly connected to a water inlet pipe, the bottom end of the cooling water tank is fixedly connected to a first heat exchange tube, the side of the first heat exchange tube away from the cooling water tank is fixedly connected to a bent pipe, and the end of the bent pipe away from the first heat exchange tube is fixedly connected to a second heat exchange tube.

[0008] As a further preferred embodiment of the present technical solution, a solenoid valve is provided inside the water inlet pipe, and a plurality of the first heat exchange tubes are provided, and the plurality of first heat exchange tubes pass through the cooling water tank and the discharge pipe and extend into the interior thereof.

[0009] As a further preferred embodiment of the present technical solution, the left side of the discharge pipe is fixedly connected to the curing furnace body, the inner wall of the curing furnace body is fixedly connected to an air distribution plate, the side of the air distribution plate away from the curing furnace body is fixedly connected to a placement plate, the inner wall of the curing furnace body is fixedly connected to a heating plate, and the front of the curing furnace body is hinged with a sealing door.

[0010] As a further preferred embodiment of the present technical solution, the curing furnace body and the return air duct are fixedly connected, two air distribution plates are provided, and multiple placement plates are provided, multiple placement plates are located between two air distribution plates, and a control handle is provided on the side of the sealing door away from the curing furnace body.

[0011] As a further preferred embodiment of the present technical solution, air inlet pipes are fixedly connected to the left and right sides of the curing furnace body, a dustproof net is fixedly connected to the inner wall of the air inlet pipe, and a fan is fixedly connected to the top of the air inlet pipe.

[0012] The utility model provides a heat recovery curing furnace, which has the following beneficial effects:

[0013] (1) The utility model opens the electromagnetic valve in the discharge pipe to allow the gas after curing to enter the discharge pipe. The gas passes through the filter and blocks the dust particles therein on the filter. The rotary motor is started to drive the connecting shaft to rotate the ridge block. After the ridge block rotates to a certain angle, it contacts the filter and squeezes the filter. When the ridge block is separated from the filter, the filter vibrates, thereby shaking the dust particles off the filter, ensuring the normal use of the filter. After the collection is completed, the pumping pump is started to pump the gas back into the main body of the curing furnace through the return air duct, so as to realize the secondary utilization of the excess oxygen and heat in the gas.

[0014] (2) The utility model introduces cooling water into the cooling water tank through the water inlet pipe. When the gas is discharged, the solenoid valve in the first heat exchange pipe is opened to allow the cooling water to enter the first heat exchange pipe. The cooling water flows in the first heat exchange pipe, the elbow pipe and the second heat exchange pipe, and absorbs the temperature of the gas in the discharge pipe, thereby realizing heat exchange and improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the right side structure of the present utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the curing furnace body of the present invention;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the discharge pipe of the present utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the cooling water tank of the present utility model.

[0020] In the figure: 1. Discharge pipe; 2. Filter; 3. Return air outlet; 4. Rotating motor; 5. Connecting shaft; 6. Raised ridge block; 7. Collecting box; 8. Pumping pump; 9. Return air duct; 10. Cooling water tank; 11. Water inlet pipe; 12. First heat exchange pipe; 13. Bend pipe; 14. Second heat exchange pipe; 15. Curing furnace body; 16. Air distribution plate; 17. Placement plate; 18. Heating plate; 19. Sealing door; 20. Inlet pipe; 21. Dust screen; 22. Fan. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1 and Figure 5 As shown, in this embodiment, a heat recovery curing furnace includes a discharge pipe 1, the inner wall of the discharge pipe 1 is fixedly connected to a filter screen 2, the bottom of the discharge pipe 1 is provided with a return air port 3, the top of the discharge pipe 1 is fixedly connected to a rotating motor 4, the output end of the rotating motor 4 is fixedly connected to a connecting shaft 5, the surface of the connecting shaft 5 is fixedly connected to a convex block 6, the bottom end of the discharge pipe 1 is fixedly connected to a collecting box 7, the back of the collecting box 7 is fixedly connected to a pumping pump 8, and the side of the pumping pump 8 away from the collecting box 7 is fixedly connected to a return air duct 9.

[0023] By opening the solenoid valve in the discharge pipe 1, the gas after curing and use enters the discharge pipe 1, and the gas passes through the filter 2 and blocks the dust particles therein on the filter 2. The rotating motor 4 is started to make the connecting shaft 5 drive the convex block 6 to rotate. After the convex block 6 rotates a certain angle, it contacts the filter 2 and squeezes the filter 2. When the convex block 6 is separated from the filter 2, the filter 2 vibrates, thereby shaking off the dust particles from the filter 2, ensuring the normal use of the filter 2. After the collection is completed, the pumping pump 8 is started to pump the gas again into the curing furnace body 15 through the return air duct 9, so as to realize the secondary utilization of the excess oxygen and heat in the gas.

[0024] The connecting shaft 5 passes through the discharge pipe 1 and extends into the interior thereof. The connecting shaft 5 and the convex ridge block 6 are located on a side of the return air inlet 3 away from the filter 2 . The collecting box 7 is located directly below the return air inlet 3 .

[0025] The top of the discharge pipe 1 is fixedly connected to a cooling water tank 10, the side of the cooling water tank 10 away from the rotating motor 4 is fixedly connected to a water inlet pipe 11, the bottom end of the cooling water tank 10 is fixedly connected to a first heat exchange pipe 12, the side of the first heat exchange pipe 12 away from the cooling water tank 10 is fixedly connected to a bend pipe 13, and the end of the bend pipe 13 away from the first heat exchange pipe 12 is fixedly connected to a second heat exchange pipe 14.

[0026] The cooling water is introduced into the cooling water tank 10 through the water inlet pipe 11. When the gas is discharged, the solenoid valve in the first heat exchange tube 12 is opened to allow the cooling water to enter the first heat exchange tube 12. The cooling water flows in the first heat exchange tube 12, the elbow 13 and the second heat exchange tube 14, and absorbs the temperature of the gas in the discharge pipe 1, thereby realizing heat exchange to improve resource utilization.

[0027] A solenoid valve is provided inside the water inlet pipe 11 , and a plurality of first heat exchange pipes 12 are provided. The plurality of first heat exchange pipes 12 penetrate the cooling water tank 10 and the discharge pipe 1 and extend into the interior thereof.

[0028] The left side of the discharge pipe 1 is fixedly connected to the curing oven main body 15, the inner wall of the curing oven main body 15 is fixedly connected to an air distribution plate 16, the side of the air distribution plate 16 away from the curing oven main body 15 is fixedly connected to a placement plate 17, the inner wall of the curing oven main body 15 is fixedly connected to a heating plate 18, and the front of the curing oven main body 15 is hinged with a sealing door 19.

[0029] The curing furnace body 15 and the return air duct 9 are fixedly connected, there are two air distribution plates 16, and there are multiple placement plates 17. The multiple placement plates 17 are located between the two air distribution plates 16, and a control handle is provided on the side of the sealing door 19 away from the curing furnace body 15.

[0030] An air inlet pipe 20 is fixedly connected to the left and right sides of the curing furnace body 15 , a dustproof net 21 is fixedly connected to the inner wall of the air inlet pipe 20 , and a fan 22 is fixedly connected to the top of the air inlet pipe 20 .

[0031] The utility model provides a heat recovery curing furnace, the specific working principle of which is as follows:

[0032] When in use, the sealing door 19 is opened by controlling the handle, the object to be cured is placed on the placement plate 17, and the sealing door 19 is closed again, the fan 22 is started, and air or oxygen is pumped into the interior of the curing oven body 15, and the heating plate 18 is started to heat and cure the object to be cured. At the same time, the solenoid valve in the discharge pipe 1 is opened to allow the gas after curing to enter the discharge pipe 1, and the gas passes through the filter 2 and blocks the dust particles therein on the filter 2. The rotating motor 4 is started to make the connecting shaft 5 drive the convex block 6 to rotate. The convex block 6 contacts the filter 2 after rotating a certain angle and squeezes the filter 2. The ridge block 6 is separated from the filter screen 2, and the filter screen 2 vibrates, thereby shaking off the dust particles from the filter screen 2, ensuring the normal use of the filter screen 2. After the collection is completed, the pumping pump 8 is started to pump part of the gas through the return air pipe 9 to the curing furnace body 15 again, so as to realize the secondary utilization of the excess oxygen and heat in the gas; the remaining gas flows in the discharge pipe 1, and the solenoid valve in the first heat exchange pipe 12 is opened to allow cooling water to enter the first heat exchange pipe 12. The cooling water flows in the first heat exchange pipe 12, the elbow 13 and the second heat exchange pipe 14, and absorbs the temperature in the gas in the discharge pipe 1, thereby realizing heat exchange.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat recovery curing furnace, comprising a discharge pipe (1), characterized in that: The inner wall of the discharge pipe (1) is fixedly connected to a filter screen (2), the bottom of the discharge pipe (1) is provided with a return air port (3), the top of the discharge pipe (1) is fixedly connected to a rotating motor (4), the output end of the rotating motor (4) is fixedly connected to a connecting shaft (5), the surface of the connecting shaft (5) is fixedly connected to a convex block (6), the bottom end of the discharge pipe (1) is fixedly connected to a collection box (7), the back of the collection box (7) is fixedly connected to a pumping pump (8), and the side of the pumping pump (8) away from the collection box (7) is fixedly connected to a return air pipe (9).

2. The heat recovery curing furnace according to claim 1, characterized in that: The connecting shaft (5) passes through the discharge pipe (1) and extends into the interior thereof. The connecting shaft (5) and the ridge block (6) are located on the side of the return air inlet (3) away from the filter (2). The collecting box (7) is located directly below the return air inlet (3).

3. The heat recovery curing furnace according to claim 1, characterized in that: The top end of the discharge pipe (1) is fixedly connected to a cooling water tank (10), the side of the cooling water tank (10) away from the rotating motor (4) is fixedly connected to a water inlet pipe (11), the bottom end of the cooling water tank (10) is fixedly connected to a first heat exchange pipe (12), the side of the first heat exchange pipe (12) away from the cooling water tank (10) is fixedly connected to a bent pipe (13), and the end of the bent pipe (13) away from the first heat exchange pipe (12) is fixedly connected to a second heat exchange pipe (14).

4. The heat recovery curing furnace according to claim 3, characterized in that: A solenoid valve is provided inside the water inlet pipe (11), and a plurality of first heat exchange pipes (12) are provided. The plurality of first heat exchange pipes (12) penetrate the cooling water tank (10) and the discharge pipe (1) and extend into the interior thereof.

5. The heat recovery curing furnace according to claim 1, characterized in that: The left side of the discharge pipe (1) is fixedly connected to a curing furnace body (15), the inner wall of the curing furnace body (15) is fixedly connected to an air distribution plate (16), the side of the air distribution plate (16) away from the curing furnace body (15) is fixedly connected to a placement plate (17), the inner wall of the curing furnace body (15) is fixedly connected to a heating plate (18), and the front of the curing furnace body (15) is hinged with a sealing door (19).

6. The heat recovery curing furnace according to claim 5, characterized in that: The curing furnace body (15) and the return air duct (9) are fixedly connected, the number of the air distribution plates (16) is set to two, the number of the placement plates (17) is set to multiple, and the multiple placement plates (17) are located between the two air distribution plates (16), and the sealing door (19) is provided with a control handle on the side away from the curing furnace body (15).

7. The heat recovery curing furnace according to claim 5, characterized in that: The left and right sides of the curing furnace body (15) are fixedly connected with an air intake pipe (20), the inner wall of the air intake pipe (20) is fixedly connected with a dustproof net (21), and the top of the air intake pipe (20) is fixedly connected with a fan (22).

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