Recycling and dust removing device for non-woven fabric production

Abstract

The utility model discloses a recovery and dust removal device for non-woven fabric production, which relates to the technical field of non-woven fabric production equipment and comprises a recoverer, a filter device is arranged in the recoverer, the upper end of the filter device is communicated with an air inlet, and the lower end of the filter device is connected with a collecting device; an air outlet is formed in the recoverer, a filter screen is arranged on the air outlet, and the bottom of the recoverer is communicated with a dust collection device; the air inlet is directly communicated with the dust generating equipment, air mixed with dust is blown into the recoverer through an exhaust fan of the dust generating equipment, then the air is filtered for the first time through a filtering device in the recoverer, long fibers in the air are filtered out, and the air is collected, recycled and reused through a collecting device below the filtering device. One part of the primarily filtered air is secondarily filtered by a filter screen and then released into the air, and the other part of the primarily filtered air is collected by a dust collecting device and then treated; and a high-power dust collecting device is not used, so that energy consumption is reduced, and air pressure unbalance caused by a negative pressure environment in a workshop is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of nonwoven fabric production equipment, specifically relating to a recycling and dust removal device for nonwoven fabric production. Background Technology

[0002] The opening and carding processes in nonwoven fabric production are key stages that generate dust pollution. During these processes, phenomena such as the shedding of polyethylene (PE) material, the coagulation and separation of fiber oils, and fiber breakage produce a large amount of fine dust particles. If this dust is not treated in a timely manner, it will not only pollute the production environment and affect product quality, but may also pose a health hazard to operators.

[0003] Currently, the industry commonly uses high-power dust collection equipment for dust treatment. Its working principle involves creating a forced negative pressure environment by setting the recovery air volume to be greater than the total exhaust volume of the dust-generating equipment (i.e., the sum of the power of all exhaust fans in the cotton feeding and combing area). While this method can basically meet dust removal requirements, it has several significant drawbacks:

[0004] First, energy consumption is a significant issue. The continuous operation of high-power dust collection equipment results in enormous electricity consumption; statistics show that the energy consumption of dust removal systems often accounts for 15-20% of the total energy consumption of the production line. Second, the high-power operation causes severe noise pollution, with ambient noise levels generally exceeding 85 decibels, which does not meet the environmental protection requirements of modern factories. Third, excessive negative pressure can lead to air pressure imbalance inside the workshop, preventing doors and windows from closing properly. An additional air supply system is necessary to maintain air pressure balance, which not only increases energy consumption but also introduces hygiene problems such as mosquito infestations. Furthermore, the existing system has low efficiency in processing long fibers, with a large amount of recyclable long fibers being lost through the exhaust system, resulting in resource waste. Utility Model Content

[0005] The purpose of this invention is to provide a recycling and dust removal device for nonwoven fabric production, in order to solve the aforementioned problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dust collection and recycling device for nonwoven fabric production includes a collector, a filter device inside the collector, an air inlet connected to the upper end of the filter device, and a collection device connected to the lower end of the filter device; an air outlet is provided on the collector, a filter screen is provided on the air outlet, and a dust collection device is connected to the bottom of the collector.

[0008] Optionally, the recycler includes a main body and an extension, the main body being an octagonal prism structure, and the extension being a right-angled triangular prism structure with eight faces extending outward from the periphery of the main body, the main body and the extension being connected.

[0009] Optionally, the extended portion includes a first right-angled surface, a second right-angled surface, an inclined surface, a left side surface, and a right side surface; the first right-angled surface is completely fitted with one of the eight surfaces surrounding the main body portion.

[0010] Optionally, the inclined surface is set at a 60-degree angle to the ground.

[0011] Optionally, the air outlet is located on the second right-angled surface, inclined surface, left side surface, or right side surface.

[0012] Optionally, the filter device is a hollow cylindrical structure with several filter holes on its periphery. The upper end of the filter device is flush with the upper surface of the main body, and the lower end of the filter device is flush with the lower surface of the main body.

[0013] Optionally, a cover is provided on the upper surface of the main body, and the cover covers the filter device, and the air inlet is connected to the cover through a pipe.

[0014] Optionally, the bottom of the recycler is connected to a dust collection pipe, and the recycler is connected to the dust collection device through the dust collection pipe.

[0015] Optionally, a support device is provided at the bottom of the recycler.

[0016] Beneficial effects: This utility model discloses a dust collection and recycling device for non-woven fabric production. The air inlet is directly connected to the dust-generating equipment. The dust-laden air is blown into the collector by the exhaust fan of the dust-generating equipment. The air then undergoes a first filtration through the filter device in the collector to remove long fibers. The air is then collected by the collection device below the filter device for recycling. After the first filtration, part of the air is released into the air after a second filtration through the filter screen, while the other part is collected and processed by the dust collection device. This eliminates the need for a high-power dust collection device, reducing energy consumption and avoiding negative pressure environments in the workshop that could lead to air pressure imbalance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a recycling and dust removal device for nonwoven fabric production according to this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the extension portion of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the filtration device of this utility model.

[0020] In the diagram: 1. Recycler; 11. Main body; 12. Extension; 121. First right-angled surface; 122. Second right-angled surface; 123. Inclined surface; 124. Left side; 125. Right side; 2. Filter device; 3. Air inlet; 4. Collection device; 5. Filter screen; 6. Cover; 7. Dust collection duct; 8. Support device. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0022] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0023] In the description of this utility model, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0024] Example

[0025] like Figures 1-3 As shown, this embodiment provides a recycling dust removal device for non-woven fabric production, including a recycling unit 1, a filter device 2 is provided inside the recycling unit 1, an air inlet 3 is connected to the upper end of the filter device 2, and a collection device 4 is connected to the lower end of the filter device 2; an air outlet is provided on the recycling unit 1, a filter screen 5 is provided on the air outlet, and a dust collection device is connected to the bottom of the recycling unit 1.

[0026] The function of the collector 1 is to provide space for air flow; the function of the filter device 2 is to filter the air carrying dust and remove the long fibers; the function of the filter screen 5 is to perform secondary filtration on the air carrying dust, and the filter screen 5 is made of nylon material; the function of the collection device 4 is to collect the filtered long fibers for recycling.

[0027] In practical applications, the air inlet 3 is directly connected to the dust-generating equipment. The dust-laden air is blown into the collector 1 by the exhaust fan of the dust-generating equipment. The air then undergoes a first filtration through the filter device 2 in the collector 1 to remove long fibers. The air is then collected by the collection device 4 below the filter device 2 for recycling. After the first filtration, part of the air is released into the air after a second filtration through the filter screen 5, while the other part is collected and processed by the dust collection device. This eliminates the need for a high-power dust collection device, reducing energy consumption. Furthermore, after the modification, some air diffuses within the workshop through the filter screen 5, reducing the amount of air entering the integrated device and preventing a negative pressure environment in the workshop that could lead to air pressure imbalance.

[0028] For details, see Figure 1 The collector 1 includes a main body 11 and an extension 12. The main body 11 is an octagonal prism structure, and the extension 12 is a right-angled triangular prism structure with eight faces extending outward from the periphery of the main body 11. The main body 11 and the extension 12 are connected. The filter device 2 is installed on the main body 11. Air carrying dust flows through the air inlet 3 to the filter device 2 for filtration. The filtered air then enters the extension 12.

[0029] Preferably, see Figure 2 The extension portion 12 includes a first right-angled surface 121, a second right-angled surface 122, an inclined surface 123, a left side surface 124, and a right side surface 125. The first right-angled surface 121 is completely fitted with one of the eight surfaces surrounding the main body portion 11. Specifically, the first right-angled surface 121 and the eight surfaces surrounding the main body portion 11 are in an open state, allowing the main body portion 11 and the extension portion 12 to communicate. Each surface surrounding the main body portion 11 is provided with an extension portion 12 of a right-angled triangular prism structure, for a total of eight extension portions 12. The main body portion 11 and the eight extension portions 12 together form a structure similar to an octagonal cage.

[0030] Preferably, the inclined surface 123 is inclined at 60 degrees to the ground.

[0031] In one embodiment, the air outlet is disposed on the second right-angled surface 122, the inclined surface 123, the left side surface 124, or the right side surface 125; specifically, see Figure 1The air outlet is located on the inclined surface 123 of one of the extensions 12. A filter 5 is directly installed on the air outlet for secondary filtration of the air after primary filtration. The air is then released into the air through the filter 5. One, two, or even more filters 5 can be installed. However, the function of the filters 5 here is only to discharge excess air and reduce the load on the dust collection device. Therefore, the number of filters 5 is generally not too large. The filter 5 can be installed at any position on the second right-angled surface 122, the inclined surface 123, the left side surface 124, or the right side surface 125, or any combination thereof.

[0032] In one embodiment, see Figure 3 The filter device 2 is a hollow cylindrical structure with several filter holes on its periphery. The upper end of the filter device 2 is flush with the upper end face of the main body 11, and the lower end of the filter device 2 is flush with the lower end face of the main body 11.

[0033] Further, see Figure 1 The main body 11 has a cover 6 on its upper surface, and the cover 6 covers the filter device 2. The air inlet 3 is connected to the cover 6 through a pipe.

[0034] Further, see Figure 1 The bottom of the collector 1 is connected to a dust collection pipe 7, and the collector 1 is connected to the dust collection device through the dust collection pipe 7.

[0035] In one embodiment, see Figure 1 The bottom of the recycler 1 is provided with a support device 8.

[0036] This utility model discloses a dust collection and recycling device for non-woven fabric production. The air inlet 3 is directly connected to the dust-generating equipment. The exhaust fan of the dust-generating equipment blows the dust-laden air into the collector 1. The air then undergoes a first filtration through the filter device 2 in the collector 1 to remove long fibers. The air is then collected by the collection device 4 below the filter device 2 for recycling. After the first filtration, part of the air is released into the air after a second filtration through the filter screen 5, while the other part is collected and processed by the dust collection device. This eliminates the need for a high-power dust collection device, reducing energy consumption and avoiding negative pressure environments in the workshop that could lead to air pressure imbalance.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A dust collection and recycling device for nonwoven fabric production, characterized in that, The application relates to a recycling device, which comprises a recycling device (1) provided with a filtering device (2), an air inlet (3) communicated with the upper end of the filtering device (2), and a collecting device (4) connected with the lower end of the filtering device (2); an air outlet is arranged on the recycling device (1), the air outlet is provided with a filter screen (5), and a dust collecting device is communicated with the bottom of the recycling device (1).

2. The recovery dust removing device for nonwoven fabric production according to claim 1, characterized in that, The recycling device (1) comprises a main body part (11) and an extension part (12), the main body part (11) is an octagonal prism structure, the extension part (12) is a right-angle triangular prism structure which extends outward from each of the eight sides of the main body part (11), and the main body part (11) and the extension part (12) are communicated.

3. The recovery dust removing device for nonwoven fabric production according to claim 2, characterized in that, The extension part (12) comprises a first right-angle surface (121), a second right-angle surface (122), an inclined surface (123), a left side surface (124) and a right side surface (125); the first right-angle surface (121) is completely attached to one of the eight sides of the main body part (11).

4. The recovery dust removing device for nonwoven fabric production according to claim 3, characterized in that, The inclined surface (123) is arranged to be inclined to the ground at an angle of 60 degrees.

5. The recovery dust removing device for nonwoven fabric production according to claim 3, characterized in that, The air outlet is arranged on the second right-angle surface (122), the inclined surface (123), the left side surface (124) or the right side surface (125).

6. The recovery dust removing device for nonwoven fabric production according to claim 2, characterized in that, The filtering device (2) is a hollow cylinder structure, a plurality of filtering holes are arranged on the periphery of the filtering device (2), the upper end of the filtering device (2) is flush with the upper end surface of the main body part (11), and the lower end of the filtering device (2) is flush with the lower end surface of the main body part (11).

7. The recovery dust removing device for nonwoven fabric production according to claim 6, characterized in that, A cover (6) is arranged on the upper end surface of the main body part (11) and covers the filtering device (2), and the air inlet (3) is communicated with the cover (6) through a pipeline.

8. The recovery dust removing device for nonwoven fabric production according to claim 1, characterized in that, A dust collecting pipeline (7) is connected to the bottom of the recycling device (1), and the recycling device (1) is communicated with the dust collecting device through the dust collecting pipeline (7).

9. The recovery dust removing device for nonwoven fabric production according to claim 1, characterized in that, A supporting device (8) is arranged on the bottom of the recycling device (1).

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