A dust collector with screening and recycling functions

Abstract

The present application belongs to the technical field of dust collectors, and discloses a dust collector with screening and recycling functions, which comprises a screening box, wherein the screening box is provided with a recycling inlet, a recycling outlet and a dust collecting outlet; a flow channel partition plate is arranged in the screening box, and the flow channel partition plate divides the inside of the screening box into a main flow channel and a branch flow channel in connection; one end of the main flow channel is the recycling inlet, and the other end is the recycling outlet; one end of the branch flow channel is connected with the main flow channel, and the other end is the dust collecting outlet; the screening box is connected with a fan at the recycling outlet; and the dust collecting outlet of the screening box is connected with a dust remover. When dust removal and recycling are performed, the useful tobacco particles and the useless dust particles are separated and concentratedly recycled, so that on the one hand, the tobacco particles can be reused with high value, and on the other hand, the dust removal burden of the dust remover can be reduced, the service life is prolonged, and the cleaning frequency is reduced.

Description

Technical Field

[0001] This invention belongs to the field of dust collector technology, specifically relating to a dust collector with screening and recycling functions. Background Technology

[0002] In many industrial production and processing environments, such as mining, building materials, chemical, pharmaceutical, tobacco, and food processing industries, a large amount of particulate matter suspended in the air is inevitably generated during production. These particles come from a wide range of sources and have a complex particle size distribution. Inhalable particles can penetrate deep into the respiratory tract and even enter the bloodstream, posing a serious threat to the occupational health of on-site workers. Long-term exposure to high concentrations of particulate matter can induce a series of serious diseases, including pneumoconiosis, chronic bronchitis, asthma, cardiovascular disease, and lung cancer. Therefore, effectively controlling and removing particulate matter from workplace air is a core element in protecting workers' health rights and implementing occupational health regulations.

[0003] Currently, common treatment technologies for particulate matter pollution in processing environments mainly include local ventilation and dust removal, general air exchange, spray dust suppression, and the use of personal protective equipment (such as dust masks). Central dust collection systems and various dust collectors (such as bag filters, cyclone dust collectors, and wet scrubbers) are widely used. However, the main design goal of existing technologies focuses on "harmless treatment" or "emission compliance," that is, separating particulate matter from the airflow through filtration, sedimentation, or wet collection, and typically treating it as waste for landfill or simple disposal. While this approach reduces environmental pollution to some extent, it does not fully explore the potential value of particulate matter itself.

[0004] It is worth noting that in many specific industries, the particulate matter generated during processing is not entirely useless waste, but rather a valuable resource containing high-value recyclable components. Take the tobacco industry as an example: during processes such as tobacco leaf re-drying, shredding, rolling, and packaging, a large amount of fine tobacco particles (commonly known as tobacco dust or soot) are generated. These tobacco particles retain the chemical components and aroma substances of tobacco, possessing high recycling value. If they can be effectively recycled and reused in production (such as as raw materials for low-grade cigarettes or reconstituted tobacco, or for extracting nicotine and flavorings), not only can resource waste be reduced and raw material costs lowered, but considerable economic benefits can also be created. However, current dust collection systems often collect tobacco particles mixed with dust, fibers, and other impurities, resulting in low purity and poor quality of the recycled materials, making high-value reuse difficult, or requiring additional complex sorting and purification processes, which is ultimately counterproductive. Summary of the Invention

[0005] In view of the shortcomings of existing technologies, on the one hand, they focus on pollution control and occupational health protection, neglecting the recycling and reuse of particulate matter resources; on the other hand, when attempting to recycle, they face problems such as mixed collected materials, insufficient purity, and high subsequent processing costs. The purpose of this invention is to provide a dust collector with screening and recycling functions, which can effectively protect the health of workers, efficiently purify the air in the working environment, and collect specific high-value particulate matter (especially tobacco particles) and maintain its purity to achieve high-value recycling.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: A dust collector with screening and recycling function includes a screening box, which has a recycling inlet, a recycling outlet, and a dust collection outlet. The screening box is equipped with a flow channel partition plate inside, which divides the interior of the screening box into a main flow channel and a branch flow channel. One end of the main channel is the recycling inlet, and the other end is the recycling outlet; One end of the tributary is connected to the main channel, and the other end is the dust collection outlet; The screening box is connected to a blower at the recycling outlet; The dust collection outlet of the screening box is used to connect to the dust collector.

[0007] In this invention, the fan generates suction to draw tobacco particles and dust into the main channel inside the screening box through the recovery inlet, and the dust collection outlet is connected to the inlet of the dust collector. When tobacco particles and dust flow to the branch of the main channel and the tributary channel, the suction force generated by the dust collector will act on the tobacco particles and dust through the tributary channel; Because the mass of tobacco particles is greater than that of dust, their inertia is also greater. Even if they are subjected to the suction force of the dust collector to change their motion state, they will not move or deflect excessively. In addition, the spatial distance between the main channel and the tributary channel is limited, and the time that the tobacco particles are affected by the dust collector is also relatively limited. Therefore, the tobacco particles will not enter the tributary channel, but will continue to flow along the main channel, enter the fan through the recovery outlet, and be collected and recovered through the fan outlet. Because dust particles have small mass and even smaller inertia, they are more likely to change their motion state when subjected to the action of the dust collector and enter the branch channel. After entering the branch channel, the dust passes through the dust collection outlet to the dust collector, thus completing the dust collection. In this way, useful tobacco particles are separated from useless dust particles and collected in a centralized manner during dust collection and recycling. On the one hand, this enables the high-value reuse of tobacco particles, and on the other hand, it reduces the dust collection burden on the dust collector, extends its service life, and reduces the cleaning frequency.

[0008] In some alternative examples, after the dust flows to the dust collector, it is removed by water mist. The water mist combines with the dust and, under the influence of gravity, forces the dust to fall. The water mist method can improve water resource utilization.

[0009] As a preferred embodiment of the present invention, the fan includes a rotary power source, the output end of the rotary power source is connected to a rotating shaft, fan blades are arranged circumferentially on the rotating shaft, the rotating shaft is rotatably disposed in a wind box, and the upper and lower ends of the inner cavity of the wind box are both open.

[0010] In this invention, a rotary power source drives the fan blades to rotate via a rotating shaft, thereby generating suction force. The fan blades are fixed in the bellows to prevent the suction force from dissipating. The bellows cavity is open at both the top and bottom, allowing tobacco particles to enter and exit.

[0011] In some alternative examples, an electric motor is chosen as the rotational power source, which facilitates control of the rotational speed.

[0012] As a preferred embodiment of the present invention, the screening box is further provided with an inspection port, and an inspection door is installed at the inspection port.

[0013] In this invention, when the screening box is blocked, needs cleaning, or experiences other malfunctions, the inspection port is used to expose the interior of the screening box, facilitating direct maintenance.

[0014] As a preferred embodiment of the present invention, the inspection door is hinged to the screening box and locked with bolts.

[0015] In this invention, bolt locking facilitates repeated tightening and unlocking, while hinged access doors facilitate opening the access panel.

[0016] As a preferred embodiment of the present invention, the main channel has a larger cross-section on the side closer to the recycling inlet and a smaller cross-section on the side closer to the recycling outlet.

[0017] In this invention, the larger flow channel cross-section on the inlet side facilitates a wider range of intake, improving processing efficiency and range, while the smaller flow channel cross-section at the outlet can help to collect tobacco particles.

[0018] The beneficial effects of this invention are: during dust collection and recycling, useful tobacco particles are separated from useless dust particles and collected in a concentrated manner. On the one hand, this enables the high-value reuse of tobacco particles, and on the other hand, it reduces the dust collection burden of the dust collector, extends its service life, and reduces the cleaning frequency. Attached Figure Description

[0019] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings; Figure 1 Axial side of the embodiment of the present invention Figure 1 ; Figure 2 Axial side of the embodiment of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the exposed interior of the screening box according to an embodiment of the present invention; Figure 4 This is a schematic diagram of particle diversion in an embodiment of the present invention; Figure 5 This is a schematic diagram of the screening box in an embodiment of the present invention; Figure 6 This is a schematic diagram of the fan structure in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the fan after the wind box is removed in an embodiment of the present invention; The symbols for the main components are explained below: 1. Screening box; 11. Recycling inlet; 12. Recycling outlet; 13. Dust collection outlet; 14. Inspection port; 15. Flow channel partition plate; 2. Fan; 21. Rotary power source; 22. Bellows; 23. Fan blades; 3. Inspection door. Detailed Implementation

[0020] The technical solutions of the present invention will be described in detail below with reference to specific embodiments and accompanying drawings. The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the present invention; these descriptions are explanatory and exemplary, and should not be construed as limiting the implementation methods or the scope of protection of the present invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein. Example

[0022] like Figures 1-7 As shown, this embodiment provides a dust collector with screening and recycling function, including a screening box 1. The screening box 1 is provided with a recycling inlet 11, a recycling outlet 12, and a dust collection outlet 13. The screening box 1 is provided with a flow channel partition plate 15 inside, which divides the interior of the screening box 1 into a main flow channel and a branch flow channel. One end of the main channel is the recycling inlet 11, and the other end is the recycling outlet 12; One end of the tributary is connected to the main channel, and the other end is the dust collection outlet 13; The screening box 1 is connected to the blower 2 at the recycling outlet 12. The blower 2 includes a rotary power source 21. The output end of the rotary power source 21 is connected to a rotating shaft. The rotating shaft is arranged with fan blades 23 around its circumference. The rotating shaft is rotatably installed in the air box 22. Both the upper and lower ends of the inner cavity of the air box 22 are open. The dust collection outlet 13 of the screening box 1 is used to connect to the dust collector.

[0023] In this embodiment, the fan 2 generates suction to draw tobacco particles and dust into the main channel inside the screening box 1 through the recovery inlet 11. The dust collection outlet 13 is connected to the inlet end of the dust collector. When tobacco particles and dust flow to the branch of the main channel and the tributary channel, the suction force generated by the dust collector will act on the tobacco particles and dust through the tributary channel; Since the mass of tobacco particles is greater than that of dust, their inertia is also greater. Even if they are subjected to the suction force of the dust collector to change their motion state, they will not move or deflect excessively. In addition, the spatial distance between the main channel and the branch channel is limited, and the time that the tobacco particles are affected by the dust collector is also relatively limited. Therefore, the tobacco particles will not enter the branch channel, but will continue to flow along the main channel, enter the fan 2 through the recovery outlet 12, and be collected through the outlet of the fan 2. The rotational power source 21 in the fan 2 drives the fan blades 23 to rotate through the rotating shaft, thereby generating suction force. The fan blades 23 are fixed in the wind box 22 to prevent the suction force from dissipating. The upper and lower ends of the inner cavity of the wind box 22 are open, which can be used for the entry and exit of tobacco particles. Because dust particles have small mass and even smaller inertia, they are more likely to change their motion state when subjected to the action of the dust collector and enter the branch channel. After entering the branch channel, the dust passes through the dust collection outlet 13 to the dust collector, thus completing the dust collection. In this way, useful tobacco particles are separated from useless dust particles and collected in a centralized manner during dust collection and recycling. On the one hand, this enables the high-value reuse of tobacco particles, and on the other hand, it reduces the dust collection burden on the dust collector, extends its service life, and reduces the cleaning frequency.

[0024] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A dust collector with screening and recycling function, characterized in that: Includes a screening box (1), which is provided with a recycling inlet (11), a recycling outlet (12), and a dust collection outlet (13). The screening box (1) is provided with a flow channel partition plate (15) inside, which divides the interior of the screening box (1) into a main flow channel and a branch flow channel. One end of the main channel is the recycling inlet (11), and the other end is the recycling outlet (12). One end of the tributary is connected to the main channel, and the other end is the dust collection outlet (13). The screening box (1) is connected to the blower (2) at the recovery outlet (12); The dust collection outlet (13) of the screening box (1) is used to connect to the dust collector.

2. A dust collector with screening and recycling function according to claim 1, characterized in that: The fan (2) includes a rotary power source (21), the output end of which is connected to a rotating shaft. The rotating shaft has fan blades (23) arranged around its circumference. The rotating shaft is rotatably installed in a wind box (22), and the upper and lower ends of the inner cavity of the wind box (22) are open.

3. A dust collector with screening and recycling function according to claim 1, characterized in that: The screening box (1) is also provided with an inspection port (14), and an inspection door (3) is installed at the inspection port (14).

4. A dust collector with screening and recycling function according to claim 3, characterized in that: The inspection door (3) is hinged to the screening box (1) and locked with bolts.

5. A dust collector with screening and recycling function according to claim 1, characterized in that: The main channel has a larger cross-section on the side closer to the recovery inlet (11) and a smaller cross-section on the side closer to the recovery outlet (12).

Images