Intelligent dust collection equipment for ceramic machining

Abstract

The invention relates to the technical field of dust collection equipment, provides intelligent dust collection equipment for ceramic processing, and solves the problems of incomplete dust removal, high shutdown frequency and low yield caused by design defects of existing equipment. The device comprises a hollowed-out conveying belt used for conveying ceramic chips; the cover body is arranged above the hollow conveying belt; the low-pressure air knives are arranged in the cover body, and the spraying axes of the low-pressure air knives are oppositely arranged at an included angle of 30-120 degrees; and at least one group of low-pressure air knives are used for oppositely spraying angles to form a crossed airflow layer to cover the surface and edge dead corners of the ceramic chip, especially superfine dust which is difficult to remove by a traditional brush.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal equipment, and in particular to intelligent dust collection equipment for ceramic processing. Background Art

[0002] During the processing of ceramic products, processes such as cutting and grinding of the green body will generate a large amount of micron-level dust. If this dust is not removed in time, it will not only lead to a decrease in processing accuracy, but also cause equipment wear and environmental pollution.

[0003] In the prior art, dust is generally removed from ceramic sheets by brushing them off, and then dust is collected using a dust collection duct. For example, Chinese Patent Publication No. CN110586531A discloses a ceramic sheet processing production line, which uses a multi-section stepped conveyor belt in conjunction with a rotating brush mechanism to brush dust on both sides of the ceramic sheets, and uses a dust collection duct to collect dust. However, when using a brush for cleaning, the radial layout of the rotating bristles can easily lead to a weakening of the cleaning force in the edge area, which can cause incomplete dust removal on the ceramic sheets. The brush will inevitably wear and fall off during use, and the frequency of stopping to change the brush head is high. In addition, the larger pieces of shed bristles are not easily collected by the dust collection duct and will adhere to the ceramic sheets, reducing the product yield. Summary of the invention

[0004] Therefore, in view of the above problems, the present invention provides an intelligent dust collection device for ceramic processing to solve the problems of incomplete dust removal, high shutdown frequency and reduced yield rate caused by design defects in existing equipment.

[0005] To achieve the above object, the present invention is achieved through the following technical solutions: A ceramic processing intelligent dust collection device, comprising: Hollow conveyor belt, used to convey ceramic pieces; A cover body is arranged above the hollow conveyor belt; At least one set of low-pressure air knives is arranged in the cover body, and the injection axes of the low-pressure air knives are arranged opposite to each other at an angle of 30°-120°; A dust collection box is provided below the hollow conveyor belt; A plurality of dust collecting branch pipes are arranged at intervals along the conveying direction of the hollow conveyor belt, and each of the dust collecting branch pipes is connected to the dust collecting box; A dust suction main pipe, each of the dust suction branch pipes is connected to the dust suction main pipe; A gas flow meter, arranged on the dust collecting main pipe, for real-time monitoring of the air flow velocity in the dust collecting main pipe; The pulse back-blowing component includes a high-pressure gas tank, a plurality of connecting pipes and a plurality of electromagnetic pulse valves, wherein the high-pressure gas tank is connected to each of the dust collecting branch pipes through each of the connecting pipes, and each of the electromagnetic pulse valves is respectively arranged on each of the connecting pipes; A controller is electrically connected to the hollow conveyor belt, the gas flow meter and each of the electromagnetic pulse valves, and executes the following control logic: when the air flow velocity in the dust suction main pipe exceeds a set threshold range, the pulse backflush component is activated to dredge each dust suction branch pipe at a different time along the conveying direction.

[0006] Furthermore, the controller activates each of the electromagnetic pulse valves according to a preset timing, the start-up interval between adjacent electromagnetic pulse valves is 2-5s, and the duration of a single injection is 0.2-0.8 seconds.

[0007] Furthermore, the controller is further configured as follows: Each of the dust suction sub-pipes is numbered incrementally (1-N) according to the conveying direction. When the flow rate in the dust suction main pipe returns to the set threshold range, the number n of the dust suction sub-pipe that has been dredged is recorded, and the next dredging cycle starts from number n+1. If n=N, it is reset to number 1.

[0008] Furthermore, a buffer pipe is obliquely connected to one side of the dust suction main pipe, and the inclination angle is 30°-75°. A pressure relief valve is provided at the free end of the buffer pipe, and its opening pressure is set to 1.1-1.3 times the working pressure of the dust suction main pipe.

[0009] Further, when the number of low-pressure air knives provided exceeds one group, an angle α is formed between the axes of the air outlet slits of adjacent groups of low-pressure air knives, and the angle α satisfies: 30°≤α≤90°.

[0010] Furthermore, the angle α is dynamically adjusted according to the number of air knife groups: when 2 groups of low-pressure air knives are set, α=60°-90°; when 3 or more groups of low-pressure air knives are set, α=30°-60° between adjacent groups, and adjacent odd and even groups of low-pressure air knives are arranged at alternating angles.

[0011] Furthermore, dustproof plates are provided on both sides of the cover body, and the top of each dustproof plate is rotatably connected to the cover body.

[0012] Furthermore, an air-uniform ring is coaxially arranged in each of the dust suction branch pipes, and an end of each of the connecting pipes is connected to the air-uniform ring, and each of the air-uniform rings is provided with an opening.

[0013] Furthermore, each of the openings is ring-shaped.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention forms a cross airflow layer with a 30°-120° opposite spray angle through at least one group of low-pressure air knives to cover the surface of the ceramic sheet and the edge dead corners, especially for ultra-fine dust that is difficult to remove with traditional brushes.

[0015] 2. The present invention adopts a staggered unblocking mechanism of the pulse back-blowing component. When the gas flow meter detects an abnormal flow rate in the dust collection main pipe, the controller activates the electromagnetic pulse valve in sequence according to the conveying direction to achieve real-time self-repair of pipeline blockage and avoid manual shutdown for unblocking.

[0016] 3. The present invention abandons the physical bristle structure and eliminates the surface pollution of the ceramic sheet caused by the wear and fall of the bristles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the front structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of a cover body according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the angle structure of the low-pressure air knife jet axis according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a pulse backflush component according to an embodiment of the present invention; Figure 6 Schematic diagram of the structure of the gas homogenizing ring according to an embodiment of the present invention.

[0018] Description of Figure Numbers: Hollow conveyor belt 1; Cover body 2; dustproof plate 21; Low pressure air knife 3; Dust box 4; Dust suction branch pipe 5; air uniformity ring 51; opening 52; Dust collecting main pipe 6; buffer pipe 61; Gas flow meter 7; Pulse back-blowing component 8; high-pressure gas tank 81; connecting pipe 82; electromagnetic pulse valve 83; Controller 9. DETAILED DESCRIPTION

[0019] The following will describe the implementation methods of the present invention in detail in conjunction with specific embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0020] Example

[0021] like Figures 1 to 6 As shown, a ceramic processing intelligent dust collection device comprises: A hollow conveyor belt 1, used for conveying ceramic sheets; The cover body 2 is arranged above the hollow conveyor belt 1; Three groups of low-pressure air knives 3 are arranged in the cover body 2, and the injection axes of the low-pressure air knives 3 are arranged opposite to each other at an angle of 60°; A dust collecting box 4 is arranged below the hollow conveyor belt 1; A plurality of dust collecting branch pipes 5 are arranged at intervals along the conveying direction of the hollow conveyor belt 1, and each of the dust collecting branch pipes 5 is connected to the dust collecting box 4; A dust collecting main pipe 6, each of the dust collecting branch pipes 5 is connected to the dust collecting main pipe 6; A gas flow meter 7 is provided on the dust collecting main pipe 6 and is used to monitor the air flow rate in the dust collecting main pipe 6 in real time; The pulse back-blowing component 8 comprises a high-pressure gas tank 81, five connecting pipes 82 and five electromagnetic pulse valves 83. The high-pressure gas tank 81 is connected to each of the dust collecting branch pipes 5 through each of the connecting pipes 82. Each of the electromagnetic pulse valves 83 is respectively arranged on each of the connecting pipes 82. The controller 9 is electrically connected to the hollow conveyor belt 1, the gas flow meter 7 and each of the electromagnetic pulse valves 83, and executes the following control logic: when the air flow velocity in the dust suction main pipe 6 exceeds the set threshold range, the pulse back-blowing component 8 is activated to dredge each dust suction branch pipe 5 at an untimed interval along the conveying direction.

[0022] Among them, the low-pressure air knife 3 adopts a slit-type air knife, the gas flow meter 7 adopts a differential pressure flow meter, and the controller 9 adopts a PLC (programmable logic controller) or a single-chip microcomputer. The high-pressure gas tank 81 and the electromagnetic pulse valve 83 can all be purchased from the market and will not be described in detail here.

[0023] At least one group of low-pressure air knives 3 is used to form a cross-air flow layer with opposite spray angles to cover the surface of the ceramic sheet and the edge blind spots, especially for the ultra-fine dust that is difficult to remove with a traditional brush; the staggered dredging mechanism of the pulse backblowing component 8 is adopted. When the gas flow meter 7 detects that the flow rate of the dust suction main pipe 6 is abnormal, the controller 9 activates the electromagnetic pulse valve 83 in sequence according to the conveying direction, so as to realize real-time self-repair of pipeline blockage and avoid manual shutdown for dredging; the physical bristle structure is abandoned to eliminate the surface contamination of the ceramic sheet caused by the wear and falling of the bristles.

[0024] The controller 9 activates each of the electromagnetic pulse valves 83 according to a preset timing, the activation interval between adjacent electromagnetic pulse valves 83 is 3 seconds, and the duration of a single injection is 0.5 seconds.

[0025] The adjacent electromagnetic pulse valves 83 are started at intervals to avoid the fluctuation of negative pressure of the system caused by synchronous back-blowing. The single injection is precisely controlled to shorten the flow velocity recovery time in the dust collection pipe.

[0026] The controller 9 is further configured as follows: Each of the dust suction branch pipes 5 is numbered incrementally (1-5) according to the conveying direction. When the flow rate in the dust suction main pipe 6 returns to the set threshold range, the number n of the dust suction branch pipe 5 that has been dredged is recorded, and the next dredging cycle starts from number n+1. If n=5, it is reset to number 1.

[0027] Unblock the pipes 5 in ascending order to equalize the probability of blockage of each vacuum pipe. Record the end point of the last unblocking (pipe No. n) and start from n+1 next time to avoid repeated unblocking of the cleaned area to improve the system response speed. Through number tracking, the pipes that are prone to blockage can be predicted, and maintenance personnel can intervene in advance to thicken the pipes.

[0028] A buffer pipe 61 is obliquely connected to one side of the dust suction main pipe 6 at an angle of 45°. A pressure relief valve (not shown in the figure) is provided at the free end of the buffer pipe 61 , and its opening pressure is set to 1.1-1.3 times the working pressure of the dust suction main pipe 6 .

[0029] The pressure relief valve automatically opens when overpressure occurs to suppress pressure fluctuations and avoid pipe bursting. The inclined setting of the buffer pipe 61 can avoid dust accumulation during the backflush process.

[0030] In this embodiment, three groups of the low-pressure air knives 3 are provided, the air outlet slit axes of adjacent groups of low-pressure air knives 3 form an angle of 30°, and adjacent odd-numbered and even-numbered groups of low-pressure air knives 3 are arranged at alternating angles.

[0031] The three adjacent groups of low-pressure air knives are arranged at an angle to form a superimposed airflow field. The dust removal efficiency in the edge area is improved. The three groups of multi-angle low-pressure air knives establish a three-dimensional wind curtain to guide the dust to form a directional flow channel and prevent the dust from drifting to the corners inside the hood.

[0032] Dust-proof plates 21 are provided on both sides of the cover body 2. The top of each dust-proof plate 21 is rotatably connected to the cover body 2. After the rotatable dust-proof plates 21 are closed, the gap between them and the hollow conveyor belt 1 is ≤5mm, thereby reducing the amount of dust overflow.

[0033] An air-leveling ring 51 is coaxially disposed in each of the dust suction branch pipes 5 , and the end of each of the connecting pipes 82 is connected to the air-leveling ring 51 . Each of the air-leveling rings 51 is provided with an opening 52 . There is only one opening 52 on one air-leveling ring 51 , and each of the openings 52 is ring-shaped.

[0034] The annular opening 52 allows the airflow to be evenly distributed along the circumference of the pipe wall, avoiding airflow blind spots to prevent pipe wall deposits. The continuous flow-guiding structure of the annular opening 52 can prevent the collected dust from being lifted up again.

[0035] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A ceramic processing intelligent vacuum cleaner, characterized in that: include: Hollow conveyor belt, used to convey ceramic pieces; A cover body is arranged above the hollow conveyor belt; At least one set of low-pressure air knives is arranged in the cover body, and the injection axes of the low-pressure air knives are arranged opposite to each other at an angle of 30°-120°; A dust collection box is provided below the hollow conveyor belt; A plurality of dust collecting branch pipes are arranged at intervals along the conveying direction of the hollow conveyor belt, and each of the dust collecting branch pipes is connected to the dust collecting box; A dust suction main pipe, each of the dust suction branch pipes is connected to the dust suction main pipe; A gas flow meter, arranged on the dust collecting main pipe, for real-time monitoring of the air flow velocity in the dust collecting main pipe; The pulse back-blowing component includes a high-pressure gas tank, a plurality of connecting pipes and a plurality of electromagnetic pulse valves, wherein the high-pressure gas tank is connected to each of the dust collecting branch pipes through each of the connecting pipes, and each of the electromagnetic pulse valves is respectively arranged on each of the connecting pipes; A controller is electrically connected to the hollow conveyor belt, the gas flow meter and each of the electromagnetic pulse valves, and executes the following control logic: when the air flow velocity in the dust suction main pipe exceeds a set threshold range, the pulse backflush component is activated to dredge each dust suction branch pipe at a different time along the conveying direction.

2. The intelligent vacuum cleaner for ceramic processing according to claim 1, characterized in that: The controller activates each electromagnetic pulse valve according to a preset timing, the activation interval of adjacent electromagnetic pulse valves is 2-5s, and the duration of a single injection is 0.2-0.8 seconds.

3. The intelligent vacuum cleaner for ceramic processing according to claim 1, characterized in that: The controller is further configured to: Each of the dust suction sub-pipes is numbered incrementally (1-N) according to the conveying direction. When the flow rate in the dust suction main pipe returns to the set threshold range, the number n of the dust suction sub-pipe that has been dredged is recorded, and the next dredging cycle starts from number n+1. If n=N, it is reset to number 1.

4. The intelligent vacuum cleaner for ceramic processing according to claim 1, characterized in that: A buffer pipe is obliquely connected to one side of the dust suction main pipe, and the inclination angle is 30°-75°. A pressure relief valve is provided at the free end of the buffer pipe, and its opening pressure is set to 1.1-1.3 times the working pressure of the dust suction main pipe.

5. The intelligent vacuum cleaner for ceramic processing according to claim 1, characterized in that: When the number of the low-pressure air knives provided exceeds one group, an angle α is formed between the axes of the air outlet slits of adjacent groups of low-pressure air knives, and the angle α satisfies: 30°≤α≤90°.

6. The intelligent vacuum cleaner for ceramic processing according to claim 5, characterized in that: The angle α is dynamically adjusted according to the number of air knife groups: when 2 groups of low-pressure air knives are set, α=60°-90°; when 3 or more groups of low-pressure air knives are set, α=30°-60° between adjacent groups, and adjacent odd-numbered and even-numbered groups of low-pressure air knives are arranged at alternating angles.

7. The intelligent vacuum cleaner for ceramic processing according to claim 1, characterized in that: Dustproof plates are arranged on both sides of the cover body, and the top of each dustproof plate is rotatably connected to the cover body.

8. The intelligent vacuum cleaner for ceramic processing according to claim 1, characterized in that: An air-uniform ring is coaxially arranged in each of the dust suction branch pipes, and the end of each of the connecting pipes is connected to the air-uniform ring, and each of the air-uniform rings is provided with an opening.

9. The intelligent vacuum cleaner for ceramic processing according to claim 8, characterized in that: Each of the openings is ring-shaped.

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