Hearth cleaning device for thick film belt type sintering furnace
By designing the groove-shaped main body, annular brush and vacuum pipe structure, combined with the compressor pressurized airflow, the problem of furnace cleaning of thick-film sintering furnaces is solved, and efficient dust collection and improvement of workshop cleanliness is achieved.
Patent Information
- Application Number
- CN202510794751.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-14
- Publication Date
- 2025-08-01
AI Technical Summary
The existing thick film sintering furnace is difficult to effectively clean after long-term use, resulting in dust accumulation and affecting the cleanliness of the workshop. In addition, the conventional cleaning methods produce a large amount of dust, which is difficult to control.
A thick film belt type sintering furnace cleaning device is designed, using a groove-shaped body, annular brush, vacuum tube and air outlet structure, combined with the compressor booster airflow, dust is recovered through physical cleaning and vacuum airflow, forming dust collection in the closed cavity.
It realizes efficient cleaning of the furnace, reduces dust diffusion, improves the cleanliness of the workshop, is simple in structure and is easy to use.
Smart Images
Figure CN120403283A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of furnace cleaning, and more specifically, it is a furnace cleaning device for a thick-film belt sintering furnace. Background Art
[0002] During the processing of thick-film substrates, a sintering furnace is required to sinter electronic pastes. Existing thick-film sintering furnaces are basically of a belt furnace structure, and the structure mainly includes: a main frame, a loading area, a drying area, a coke discharging area, a sintering area, a cooling area, and a discharging area arranged in sequence from front to back, and a conveyor belt arranged on the frame. The furnace chamber of the sintering furnace is located from the entrance of the loading area to the exit of the discharging area, presenting a linear tunnel structure with openings at both ends, and quartz heating devices are provided on the upper and lower furnace chamber walls.
[0003] After long-term use of the sintering furnace, dust and impurities will accumulate in the furnace, and it is necessary to regularly clean the sintering furnace to ensure its normal use. The length × width × height of the furnace chamber tunnel of the existing thick-film sintering furnace is approximately 6200mm × 350mm × (110 - 200mm), and quartz heating devices are provided on the upper and lower furnace chamber walls. Due to the narrow tunnel space, it is impossible to directly enter the interior for cleaning. Instead, the method of washing the conveyor belt with water and blowing air is used to clean the furnace chamber, but a large amount of dust will be generated, which is not conducive to the control of the cleanliness of the workshop. Summary of the Invention
[0004] The present invention aims to overcome the deficiencies in the prior art and provides a furnace cleaning device for a thick-film belt sintering furnace.
[0005] The present application provides the following technical solutions: A furnace cleaning device for a thick-film belt sintering furnace, characterized in that: it includes a trough-shaped main body with four walls, a cross beam is bridged in the trough body of the trough-shaped main body, and an annular brush corresponding to and cooperating with the furnace chamber of the sintering furnace is bridged on the cross beam and one side wall of the trough-shaped main body. A dust suction pipe communicating with the trough body inside the trough-shaped main body is provided on the other side of the trough-shaped main body. A group of air outlet holes are provided on the trough wall of the trough-shaped main body inside the annular brush. An air duct corresponding to and cooperating with the air outlet holes is provided inside the trough-shaped main body. An air inlet joint communicating with the air duct is provided on the trough wall of the trough-shaped main body below the dust suction pipe. A wind shield is provided on the other side wall of the trough-shaped main body.
[0006] On the basis of the above technical solutions, the following further technical solutions may be available: The thickness of the trough wall on one side of the trough-shaped main body connected to the annular brush is relatively large, and a first arc surface is provided on the inner side of the trough wall. One end of the first arc surface transitions to the bottom surface of the trough body of the trough-shaped main body; the thickness of the trough wall on the other side of the trough-shaped main body is relatively small, and the height is higher than other trough walls, and a second arc surface is provided on the inner side of this trough wall.
[0007] The wind shield is made of deformable materials such as rubber and polymer materials.
[0008] The described set of air outlet holes is distributed along the width direction of the sintering furnace hearth.
[0009] The described annular brush is a rectangular ring.
[0010] The distance between the cross beam and the groove wall on one side of the groove-shaped main body is greater than the distance between the cross beam and the groove wall on the other side of the groove-shaped main body.
[0011] Advantages of the invention: The structure of the present invention is simple, easy to use, and has a better hearth cleaning effect. Through physical cleaning and the pressurized air flow of the compressor to blow the dust together, in a relatively closed cavity, with the suction air flow, it can be effectively recycled and collected, avoiding a large amount of dust generated by conventional blowing cleaning. Description of the drawings
[0012] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is Figure 1 A - A cross-sectional view of Detailed implementation manners
[0013] As Figure 1 and 2 shown, a thick film belt type sintering furnace hearth cleaning device includes a groove-shaped main body 1 with four walls. A cross beam 3 is bridged across the groove body of the groove-shaped main body 1 along the width direction of the sintering furnace hearth 9. The distance between the cross beam 3 and the groove wall on one side of the groove-shaped main body 1 is greater than the distance between the cross beam 3 and the groove wall on the other side of the groove-shaped main body 1.
[0014] The groove wall on one side of the groove-shaped main body 1 has a larger thickness, and a first arc surface 1a is provided on the inner side of the groove wall. One end of the first arc surface 1a transitions to the bottom surface of the groove body of the groove-shaped main body 1. The groove wall on the other side of the groove-shaped main body 1 has a smaller thickness and a higher height than other groove walls, and a second arc surface 1b is provided on the inner side of this groove wall. A dust suction pipe 4 is provided at the position where the first arc surface 1a and the second arc surface 1b are connected. One end of the dust suction pipe 4 extends out of the groove wall on the other side of the groove-shaped main body 1 and is communicated with a negative pressure dust collecting device not shown in the figure.
[0015] An annular brush 2 is bridged across the cross beam 3 and the groove wall on one side of the groove-shaped main body 1. The annular brush 2 is of a rectangular ring structure. A set of air outlet holes 5 is provided at the top of the groove wall on one side of the groove-shaped main body 1 inside the annular brush 2. The described set of air outlet holes 5 is distributed along the width direction of the sintering furnace hearth.
[0016] An air duct 6 corresponding to and communicating with the air outlet holes 5 is provided inside the groove-shaped main body 1. The air duct 6 includes a branch a corresponding to each air outlet hole 5 and a main path b in parallel connection with a number of branches. An air inlet joint 7 communicating with the air duct 6 is installed on the groove wall of the groove-shaped main body 1 below the dust suction pipe 4. The air inlet joint 7 is communicated with a blowing device not shown in the figure through a pipeline.
[0017] On the other side wall of the trough-shaped main body 1, a vertically distributed wind baffle 8 is installed. The wind baffle 8 is a rubber plate made of deformable material and is distributed along the width direction of the sintering furnace hearth.
[0018] The space surrounded by the cross beam 3, the first arc surface 1a and the inner side of the annular brush 2 forms a first dust adsorption space a, which plays a major dust adsorption role, while the space surrounded by the outer side of the annular brush 2 and the second arc surface 1b forms a second dust adsorption space b, which plays an auxiliary dust adsorption role.
[0019] The arrows in the figure indicate the air flow direction.
Claims
1. A cleaning device for the hearth of a thick-film belt sintering furnace, characterized in that: It includes a trough-shaped main body (1) with four walls, a crossbeam (3) spanning inside the trough-shaped main body (1), an annular brush (2) spanning between the crossbeam (3) and a trough wall on one side of the trough-shaped main body (1), a dust suction pipe (4) provided on the other side of the trough-shaped main body (1) and communicating with the trough inside the trough-shaped main body (1), a group of air outlet holes (5) provided on the trough wall of the trough-shaped main body (1) inside the annular brush (2), an air duct (6) provided inside the trough-shaped main body (1) and corresponding to and cooperating with the air outlet holes (5), an air inlet joint (7) provided on the trough wall of the trough-shaped main body (1) below the dust suction pipe (4) and communicating with the air duct (6), and a wind baffle (8) provided on the trough wall on the other side of the trough-shaped main body (1).
2. The cleaning device for the hearth of a thick-film belt sintering furnace according to claim 1, wherein: The trough wall on one side of the trough-shaped main body (1) connected to the annular brush (2) has a larger thickness, and a first arc surface (1a) is provided on the inner side of the trough wall. One end of the first arc surface (1a) transitions to the bottom surface of the trough inside the trough-shaped main body (1); the trough wall on the other side of the trough-shaped main body (1) has a smaller thickness and a higher height than other trough walls, and a second arc surface (1b) is provided on the inner side of this trough wall.
3. The thick film belt sintering furnace hearth cleaning device according to claim 1, wherein: The wind baffle (8) is made of deformable materials such as rubber and polymer materials.
4. A thick film belt type sintering furnace hearth cleaning device according to claim 1, characterized in that: The group of air outlet holes (5) are distributed along the width direction of the sintering furnace hearth.
5. The thick film belt type sintering furnace hearth cleaning device according to claim 1, characterized in that: The annular brush (2) is a rectangular ring.
6. The cleaning device for the hearth of a thick-film belt sintering furnace according to claim 1, characterized in that: The distance between the crossbeam (3) and the trough wall on one side of the trough-shaped main body (1) is greater than the distance between the crossbeam (3) and the trough wall on the other side of the trough-shaped main body (1).