Solid dust pollution treatment device

Abstract

The invention discloses a solid dust pollution treatment device, and belongs to the technical field of solid waste pollution, the solid dust pollution treatment device comprises a polishing cabinet, an exhaust fan is mounted at the top of the polishing cabinet, a filter cartridge is mounted at the output end of the exhaust fan, an exhaust box is mounted at the other end of the filter cartridge, and a sensor group, a main filter screen and an auxiliary filter screen are arranged in the filter cartridge; the sensor group comprises three pressure sensors, and the three pressure sensors are distributed in an array at equal intervals in the airflow transmission direction; the main filter screen and the auxiliary filter screen are respectively arranged between two adjacent pressure sensors, are arranged side by side and can be opened and closed, so that airflow can independently or sequentially act on the main filter screen and the auxiliary filter screen. According to the solid dust pollution treatment device, the three sensors are arranged and located at different positions of the double filter screens respectively, and the fault sensor or the filter screen in the blocked state is positioned by analyzing the difference of sensor data under different working conditions.

Description

Technical Field

[0001] The invention belongs to the technical field of solid waste pollution, and in particular relates to a solid dust pollution treatment device. Background Art

[0002] Before painting a car, the car body or parts need to be polished to remove old paint, rust, dents or uneven surfaces, providing a smooth and uniform base for subsequent painting, sheet metal repair and other processes. In order to reduce the spread of metal chips, paint powder and other dust generated during the polishing process and protect the workshop environment and workers' health, the workshop needs to be dusted.

[0003] For example, the patent document with publication number CN218833944U discloses an all-in-one dust removal machine, including a grinding cabinet, an exhaust fan is installed on the top of the grinding cabinet, a filter cartridge is provided at the air outlet end of the exhaust fan, a high-efficiency air filter and an air guide plate are provided inside the filter cartridge, the high-efficiency air filter can filter the dust in the air, the air guide plate passes through the air guide plate holes, the air flow becomes uniform, and the irregular collision with the inner wall is reduced, the inner wall of the filter cartridge is provided with rivets, the top of the filter cartridge is fixed with an upper cover plate by hexagonal bolts, the top of the upper cover plate is fixed with a handle, the hexagonal bolts are compatible with the rivets, and the hexagonal bolts can fix the upper cover plate after being inserted into the rivets, and the hexagonal bolts on the upper cover plate can be unscrewed to replace the high-efficiency air filter and clean the air guide plate.

[0004] However, in the above scheme, the staff must open the upper cover to know the blockage condition of the filter. Obviously, in this case, it is easy for the filter to be untimely cleaned, and the cleaning cycle may be too short, resulting in a waste of manpower.

[0005] To this end, we proposed a solid dust pollution treatment device to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the problem in the prior art that the staff cannot maintain the filter according to the actual clogging situation of the filter, and to propose a solid dust pollution treatment device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A solid dust pollution treatment device comprises a grinding cabinet, an exhaust fan is installed on the top of the grinding cabinet, a filter cartridge is installed at the output end of the exhaust fan, an exhaust box is installed at the other end of the filter cartridge, and the filter cartridge is provided with:

[0009] A sensor group, the sensor group includes three pressure sensors, and the three pressure sensors are equidistantly distributed in a row along the direction of airflow transmission;

[0010] The main filter and the auxiliary filter are respectively installed between two adjacent pressure sensors. The main filter and the auxiliary filter are installed side by side and can be opened and closed, so that the airflow can act on the main filter and the auxiliary filter individually or in sequence.

[0011] Preferably, an opening is provided at the upper end of the filter cartridge, a cartridge cover is detachably installed in the opening, and the sensor group is installed on the cartridge cover.

[0012] Preferably, the main filter and the auxiliary filter are both rotatably installed on the inner wall of the filter cartridge. When the plate surfaces of the main filter and the auxiliary filter are rotated to a direction perpendicular to the airflow, they are in an open state; when the plate surfaces of the main filter and the auxiliary filter are rotated to a direction parallel to the airflow, they are in a closed state.

[0013] Preferably, the lower ends of the main filter screen and the auxiliary filter screen are fixedly connected with a rotating shaft, and the rotating shaft is rotatably mounted on the lower part of the filter cartridge.

[0014] Preferably, two dust collecting ports are provided at the lower portion of the filter cartridge, and the two dust collecting ports are respectively arranged corresponding to the main filter screen and the auxiliary filter screen. A dust collecting hopper is fixedly installed at the lower end of the filter cartridge, and the dust collecting hopper is connected to the dust collecting ports.

[0015] Preferably, a partition is provided in the middle of the dust collecting hopper, and the partition divides the dust collecting hopper into two independent channels, and the two channels are respectively connected to the two dust collecting ports and the output end of the dust collecting hopper.

[0016] Preferably, the main filter is arranged close to the output end of the filter cartridge, and the auxiliary filter is arranged close to the input end of the filter cartridge.

[0017] Preferably, a limiting block for limiting the position of the main filter is installed on the inner wall of the cylinder cover.

[0018] Preferably, a gear is fixedly connected to the rotating shaft, a rack is meshed on one side of the gear, and the rack is transmission-connected to an external driving source.

[0019] Preferably, a sliding rod is fixedly connected to the side wall of one of the racks, and the sliding rod is arranged along the length direction of the sliding rod. An electromagnetic sleeve is fixedly installed on the side wall of the other rack, and the free end of the sliding rod is slidably arranged in the electromagnetic sleeve. When the electromagnetic sleeve is energized, the sliding rod can be fixed in the electromagnetic sleeve, so that the two racks move synchronously.

[0020] In summary, the technical effects and advantages of the present invention are as follows: the solid dust pollution treatment device is provided with three sensors, which are respectively located at different positions of the double filter screens. By analyzing the differences in sensor data under different working conditions, the faulty sensor or the filter screen in a blocked state is located, so that the staff can maintain it. At the same time, the scheme also has a redundant and fault-tolerant design: when a sensor fails, the data of other sensors can be used for calculation to ensure that the system can continue to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a side structural schematic diagram of the present invention;

[0023] Figure 3 The state of the filter screen in the present invention is shown in FIG. Figure 1 ;

[0024] Figure 4 The state of the filter screen in the present invention is shown in FIG. Figure 2 ;

[0025] Figure 5 The state of the filter screen in the present invention is shown in FIG. Figure 3 ;

[0026] Figure 6 The state of the filter screen in the present invention is shown in FIG. Figure 4 ;

[0027] Figure 7 The figure is a schematic diagram of the positional relationship among the rack, gear, sliding rod and electromagnetic sleeve in the present invention.

[0028] In the figure: 1. grinding cabinet; 2. exhaust fan; 3. exhaust box; 4. filter cartridge; 5. dust bag;

[0029] 41. Cylinder cover; 42a. First sensor; 42b. Second sensor; 42c. Third sensor; 43a. Main filter; 43b. Secondary filter; 431. Rotating shaft; 432. Gear; 433. Rack; 434. Sliding rod; 435. Electromagnetic sleeve; 44. Dust hopper; 441. Dust collection port. DETAILED DESCRIPTION

[0030] 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 the embodiments.

[0031] like Figure 1-Figure 7As shown, a solid dust pollution treatment device includes a grinding cabinet 1, an exhaust fan 2 is installed on the top of the grinding cabinet 1, a filter cartridge 4 is installed at the output end of the exhaust fan 2, an exhaust box 3 is installed at the other end of the filter cartridge 4, and a plurality of dust removal bags 5 are also provided at the output end of the exhaust box 3. The dust generated inside the grinding cabinet 1 is transported to the filter cartridge 4 by the exhaust fan, enters the exhaust box 3 after the first filtration through the filter cartridge 4, and then enters the dust removal bag 5 for secondary filtration.

[0032] In the present application, the filter cartridge 4 is provided with: a sensor group, which includes three pressure sensors, which are evenly spaced and arranged in a row along the direction of airflow transmission. The three pressure sensors are respectively a first sensor 42a, a second sensor 42b and a third sensor 42c.

[0033] In the present application, a main filter 43a and a secondary filter 43b are also provided, and the main filter 43a and the secondary filter 43b are respectively installed between two adjacent pressure sensors. Specifically, the main filter 43a is arranged between the first sensor 42a and the third sensor 42c, and the secondary filter 43b is arranged between the third sensor 42c and the second sensor 42b. The sensor group is arranged in the order of the first sensor 42a, the third sensor 42c and the second sensor 42b. The main filter 43a and the secondary filter 43b are installed side by side and can be opened and closed, so that the airflow can act on the main filter 43a and the secondary filter 43b individually or in sequence.

[0034] When the main filter 43a works alone, the first sensor 42a is used to detect the pressure value behind the main filter 43a, while the second sensor 42b and the third sensor 42c are used to detect the pressure value in front of the main filter 43a. By calculating the pressure difference, the resistance value of the main filter 43a can be obtained, and then the degree of blockage of the main filter 43a can be determined, so that the staff can clean it in time. At the same time, by comparing the pressure values ​​of the second sensor 42b and the third sensor 42c, if the error is small, it means that the second sensor 42b and the third sensor 42c are normal, such as the error ≤ 5% threshold range.

[0035] When the auxiliary filter 43b works alone, the first sensor 42a and the third sensor 42c are used to detect the pressure value behind the auxiliary filter 43b, and the second sensor is used to detect the pressure value behind the auxiliary filter 43b. By calculating the pressure difference, the blockage degree of the auxiliary filter 43b can also be judged. And the working state of the first sensor 42a and the third sensor 42c can also be judged by comparing the pressure value error of the first sensor 42a and the third sensor 42c.

[0036] In addition, when the resistance value of the main filter 43a or the auxiliary filter 43b suddenly becomes smaller, it can be used to remind the staff whether the filter is damaged, so that the staff can deal with it in time.

[0037] When the main filter 43a and the auxiliary filter 43b are both in the closed state, the pressure values ​​of the first sensor 42a, the second sensor 42b and the third sensor 42c can be compared to determine whether the sensors are damaged. At the same time, it is also convenient to calibrate each sensor.

[0038] When the main filter 43a and the auxiliary filter 43b are both in the open state, the total resistance value of the main filter 43a and the auxiliary filter 43b can be obtained by calculating the pressure difference between the first sensor 42a and the second sensor 42b. In addition, the resistance value of the main filter 43a can be obtained by calculating the pressure difference between the first sensor 42a and the third sensor 42c, and the resistance value of the auxiliary filter 43b can be obtained by calculating the pressure difference between the second sensor 42b and the third sensor 42c. Finally, the calculation results are reviewed by the total resistance value of the main filter 43a and the auxiliary filter 43b and the individual resistance values ​​of the main filter 43a and the auxiliary filter 43b.

[0039] In addition, it should be noted that when the first sensor 42a or the second sensor 42b is damaged, the third sensor 42c can be used as an alternative to obtain pressure value data.

[0040] At the same time, the blockage of the dust removal bag 5 can also be judged by monitoring the value change of the first sensor 42a.

[0041] The present application sets a main filter 43a and a secondary filter 43b. When in use, different modes can be selected according to needs. The main filter 43a or the secondary filter 43b can be used alone, or the main filter 43a and the secondary filter 43b can be used at the same time. Specifically, the present application designs four working conditions for the double filter: the main filter 43a is turned on alone, the secondary filter 43b is turned on alone, the main filter 43a and the secondary filter 43b are turned on at the same time, and the main filter 43a and the secondary filter 43b are turned off at the same time.

[0042] In this way, more complex situations can be dealt with. For example, the main filter 43a and the auxiliary filter 43b can be used alternately to clean the dust, or the main filter 43a and the auxiliary filter 43b can be used at the same time to improve the filtering effect of the dust, and the main filter 43a and the auxiliary filter 43b can be set to different filtering accuracies to filter dust of different sizes.

[0043] In addition to the two groups of filters in this application, three groups of pressure sensors are additionally provided. By alternately arranging the filters and sensors, the pressure difference of the filters can be measured by the sensors, so that the blockage condition of the filters can be judged, so that the staff can clean the filters according to the actual blockage condition, making the cleaning action more effective. When the filters are blocked, the information can be transmitted to the background in time, which is convenient for the staff to deal with it.

[0044] In addition, this solution sets up three sensors, which are located at different positions of the dual filters. By analyzing the differences in sensor data under different working conditions, the faulty sensor or the filter in a blocked state can be located. At the same time, this solution also has a redundant and fault-tolerant design: when a sensor fails, the data of other sensors can be used for calculation to ensure that the system can continue to operate. By measuring the pressure difference under different working conditions, the cross-verification of the sensor and filter status is achieved, which improves the accuracy of fault diagnosis.

[0045] In the present application, an opening is provided at the upper end of the filter cartridge 4, in which a cartridge cover 41 is detachably installed. The cartridge cover 41 is connected to the opening via hanging ears and bolts to facilitate inspection and maintenance of the interior of the filter cartridge 4, and the sensor group is installed on the cartridge cover 41.

[0046] In order to realize the opening and closing of the main filter 43a and the auxiliary filter 43b, the main filter 43a and the auxiliary filter 43b are rotatably installed on the inner wall of the filter cartridge 4, wherein the filter cartridge 4 is a square cylindrical structure, and the main filter 43a and the auxiliary filter 43b are also square structures, so that the main filter 43a and the auxiliary filter 43b can rotate in the filter cartridge 4.

[0047] When the plates of the main filter 43a and the auxiliary filter 43b rotate to a direction perpendicular to the airflow, they are in an open state; when the plates of the main filter 43a and the auxiliary filter 43b rotate to a direction parallel to the airflow, they are in a closed state.

[0048] The main filter screen 43a and the auxiliary filter screen 43b can be installed on the inner side, outer side or bottom surface of the filter cartridge 4. In this embodiment, as a preferred technical solution, the main filter screen 43a and the auxiliary filter screen 43b are installed on the bottom surface of the filter cartridge 4. The lower ends of the main filter screen 43a and the auxiliary filter screen 43b are fixedly connected with a rotating shaft 431, which is rotatably installed on the lower part of the filter cartridge 4. The rotating shaft 431 is horizontally arranged, and the axis of the rotating shaft 431 is perpendicular to the length direction of the filter cartridge 4. When the main filter screen 43a and the auxiliary filter screen 43b are rotated to a vertical position, they are in an open state, and when they are rotated to a horizontal position, they are in a closed state.

[0049] The lower part of the filter cartridge 4 is provided with two dust collecting ports 441, which are respectively arranged corresponding to the main filter screen 43a and the auxiliary filter screen 43b. The corresponding arrangement specifically means that when the main filter screen 43a and the auxiliary filter screen 43b are in a horizontal position, they will be located directly above the dust collecting ports 441, so that the dust on the main filter screen 43a and the auxiliary filter screen 43b can be collected into the dust collecting ports 441. A dust collecting hopper 44 is fixedly installed at the lower end of the filter cartridge 4, and the dust collecting hopper 44 is connected to the dust collecting port 441.

[0050] It should be noted that the main filter 43a is arranged near the output end of the filter cartridge 4, and the auxiliary filter 43b is arranged near the input end of the filter cartridge 4. The two dust collecting ports 441 are respectively arranged at the front and rear sides of the auxiliary filter 43b.

[0051] A partition is provided in the middle of the dust hopper 44, which divides the dust hopper 44 into two independent channels, which are respectively connected to the two dust collection ports 441 and the output end of the dust hopper 44. The purpose of the partition is to prevent the airflow from directly entering from one of the dust collection ports 441 and directly flowing out from the other dust collection port 441, thereby bypassing the auxiliary filter 43b, resulting in the filter cartridge 4 not being able to filter.

[0052] A stopper block for limiting the position of the main filter screen 43a is installed on the inner wall of the cylinder cover 41, so that the main filter screen 43a can only rotate toward the input end of the airflow, and the rotation range of the main filter screen 43a is limited to 0 degrees-90 degrees, so that it can only rotate backward from a vertical position to a horizontal position. The auxiliary filter screen 43b is not provided with a stopper structure, and its rotation range is 0 degrees-180 degrees, and it can rotate forward or backward from a vertical position to a horizontal position. In addition, the stopper block is set in this way, so that the front side wall of the main filter screen 43a will never directly contact the airflow containing dust, so as to improve the dust filtering effect.

[0053] A gear 432 is fixedly connected to the rotating shaft 431, and a rack 433 is meshed on one side of the gear 432. The rack 433 is transmission-connected to an external driving source, which may be a linear driving source such as an electric cylinder or a hydraulic cylinder. In this embodiment, two sets of driving sources may be provided to drive the main filter 43a and the auxiliary filter 43b respectively, so that the main filter 43a and the auxiliary filter 43b can be opened and closed separately.

[0054] As another embodiment, the present application can also use the same set of driving sources. The driving source directly drives the rack 433 connected to the auxiliary filter 43b. A sliding rod 434 is fixedly connected to the side wall of one of the racks 433, and the sliding rod 434 is arranged along the length direction of the sliding rod 434. An electromagnetic sleeve 435 is fixedly installed on the side wall of the other rack 433. The free end of the sliding rod 434 is slidably arranged in the electromagnetic sleeve 435. The sliding rod 434 is made of ferromagnetic material, and an electromagnet is arranged in the electromagnetic sleeve 435. When the electromagnetic sleeve 435 is powered on, the electromagnet generates a magnetic field to adsorb the sliding rod 434, which can fix the sliding rod 434 in the electromagnetic sleeve 435, so that the sliding rod 434 and the electromagnetic sleeve 435 remain stationary, thereby causing the two racks 433 to move synchronously. When the electromagnetic sleeve 435 is powered off, the sliding rod 434 and the electromagnetic sleeve 435 can slide relative to each other, thereby causing the two racks 433 to move relative to each other.

[0055] In addition, when the same set of driving sources is used, the presence of the limit block can utilize the linkage of the rack 433 to limit the rotation angle of the auxiliary filter 43b, so that it can only rotate synchronously with the main filter 43a within a range of 90 degrees.

[0056] It should be noted that when the main filter 43a and the auxiliary filter 43b are opened and closed separately, they are in the first working state. When the main filter 43a and the auxiliary filter 43b are opened and closed synchronously, they are in the second working state.

[0057] The electromagnetic sleeve 435 is in a powered state when in use, so that the two racks 433 always keep moving synchronously, and then the main filter 43a and the auxiliary filter 43b keep moving synchronously in the first working state or the second working state. When it is necessary to switch the working state of the main filter 43a and the auxiliary filter 43b, the electromagnetic sleeve 435 can be powered off to make the two racks 433 move relative to each other, so that the main filter 43a remains in the same position, and the auxiliary filter 43b is rotated 90 degrees alone, so as to switch between the first working state and the second working state. After the switching is completed, the electromagnetic sleeve 435 is powered on again.

[0058] Here’s how it works:

[0059] In the first working state, the main filter 43a is used as the main filtering unit to filter the dust in the airflow, and the auxiliary filter 43b rotates forward 90 degrees to be horizontal, so that its windward surface is located at the top. When the main filter 43a needs to be cleaned, when the driving source drives the rack 433 to move, the two racks 433 keep moving synchronously through the electromagnetic sleeve 435 and the sliding rod 434, and the rack 433 drives the rotating shaft 431 to rotate through the gear 432, so that the auxiliary filter 43b rotates backward 90 degrees to filter the dust, and the main filter 43a rotates backward 90 degrees to the top of the dust collection port 441 to clean the dust on the filter. To clean the dust, the rack 433 can be driven to move back and forth to make the main filter 43a collide with the dust collection port 441 downward directly, so that the dust falls into the dust collection hopper 44, or a vibration motor can be set in the dust collection hopper 44 to clean the dust on the filter. The cleaning process of the auxiliary filter 43b is the same. After the cleaning is completed, the rack 433 can be driven again, and the main filter 43a and the auxiliary filter 43b rotate in the opposite direction to reset.

[0060] When it is necessary to switch from the first working state to the second working state, the electromagnetic sleeve 435 is powered off, and the auxiliary filter 43b is driven by the driving source to rotate 90 degrees, so that the auxiliary filter 43b is parallel to the main filter 43a, and then the electromagnetic sleeve 435 is restored to the powered state. At this time, when the driving source drives the rack 433 to move, the main filter 43a and the auxiliary filter 43b can be opened and closed synchronously, so as to cope with more scenarios.

[0061] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A solid dust pollution treatment device, comprising a grinding cabinet, an exhaust fan is installed on the top of the grinding cabinet, a filter cartridge is installed at the output end of the exhaust fan, and an exhaust box is installed at the other end of the filter cartridge, characterized in that: The filter cartridge is provided with: A sensor group, the sensor group includes three pressure sensors, and the three pressure sensors are equidistantly distributed in a row along the direction of airflow transmission; The main filter and the auxiliary filter are respectively installed between two adjacent pressure sensors. The main filter and the auxiliary filter are installed side by side and can be opened and closed, so that the airflow can act on the main filter and the auxiliary filter individually or in sequence.

2. A solid dust pollution treatment device according to claim 1, characterized in that: An opening is arranged at the upper end of the filter cartridge, a cartridge cover is detachably installed in the opening, and the sensor group is installed on the cartridge cover.

3. The solid dust pollution treatment device according to claim 1 is characterized in that: The main filter and the auxiliary filter are both rotatably mounted on the inner wall of the filter cartridge. When the plate surfaces of the main filter and the auxiliary filter are rotated to a direction perpendicular to the airflow, they are in an open state. When the plate surfaces of the main filter and the auxiliary filter are rotated to a direction parallel to the airflow, they are in a closed state.

4. A solid dust pollution treatment device according to claim 3, characterized in that: The lower ends of the main filter screen and the auxiliary filter screen are fixedly connected with a rotating shaft, and the rotating shaft is rotatably installed at the lower part of the filter cylinder.

5. The solid dust pollution treatment device according to claim 4 is characterized in that: The lower part of the filter cartridge is provided with two dust collecting ports, which are respectively arranged corresponding to the main filter screen and the auxiliary filter screen. A dust collecting hopper is fixedly installed at the lower end of the filter cartridge, and the dust collecting hopper is connected with the dust collecting port.

6. A solid dust pollution treatment device according to claim 5, characterized in that: A partition is provided in the middle of the dust collecting hopper, and the partition divides the dust collecting hopper into two independent channels, and the two channels are respectively connected with the two dust collecting ports and the output end of the dust collecting hopper.

7. A solid dust pollution treatment device according to any one of claims 1 to 6, characterized in that: The main filter screen is arranged close to the output end of the filter cartridge, and the auxiliary filter screen is arranged close to the input end of the filter cartridge.

8. The solid dust pollution treatment device according to claim 2 is characterized in that: A limiting block for limiting the position of the main filter is installed on the inner wall of the cylinder cover.

9. The solid dust pollution treatment device according to claim 4 is characterized in that: A gear is fixedly connected to the rotating shaft, a rack is meshed on one side of the gear, and the rack is transmission-connected to an external driving source.

10. The solid dust pollution treatment device according to claim 9, characterized in that: A sliding rod is fixedly connected to the side wall of one of the racks, and the sliding rod is arranged along the length direction of the sliding rod. An electromagnetic sleeve is fixedly installed on the side wall of the other rack, and the free end of the sliding rod is slidably arranged in the electromagnetic sleeve. When the electromagnetic sleeve is energized, the sliding rod can be fixed in the electromagnetic sleeve, so that the two racks move synchronously.

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