Manufacturing process of glass fiber filter screen with high trapping efficiency and portable dismounting and mounting device

Abstract

The invention provides a manufacturing process of a high-trapping-efficiency glass fiber filter screen and a portable dismounting and mounting device.The manufacturing process comprises the following steps that S1, components of manufacturing raw materials of the glass fiber filter screen are accurately controlled, and then the glass fiber filter screen is calcined in a crucible to form a glass fiber melt; s2, the glass fiber melt in the S1 is cooled and then subjected to centrifugal spinning operation, and the temperature and humidity in the spinning process are accurately controlled. Compared with the prior art, the manufacturing process has the following beneficial effects that the manufacturing process of the glass fiber filter screen with the high trapping efficiency starts from the accurate matching of raw materials; high-purity quartz sand, calcined aluminum carbide and calcium borate are mixed according to the formula of 52 + / -0.5% of silicon dioxide and 15 + / -0.5% of aluminum oxide, two-component polyurethane is adopted for slit coating and edge packaging after hot-pressing shaping, the curing process is monitored through infrared thermal imaging, a finished product is cured in the clean environment of FFU + HEPA, indexes such as the filtering efficiency and the air permeability are monitored through an SPC control chart, and the finished product is obtained. The waste silk is subjected to high-temperature incineration recovery after being crushed and winnowed, and raw materials are doped back according to the proportion of 1: 8 to realize cyclic utilization.

Description

Technical Field

[0001] The invention belongs to the technical field of glass fiber filter screens and relates to a manufacturing process of a glass fiber filter screen with high capture efficiency and a portable disassembly and assembly device. Background Art

[0002] Fiberglass filters are widely used in equipment such as air conditioners, purifiers, and range hoods. Their primary function is to capture particulate matter in the air to purify it. However, their manufacturing process is complex, resulting in low capture efficiency and inconvenient disassembly and replacement during use. The production of fiberglass filters involves steps such as high-temperature melting, wire drawing, and weaving or non-woven fabric molding. These processes are not only technically demanding but also energy-intensive, with certain environmental impacts. The inherent brittleness of fiberglass makes the filters susceptible to breakage during use, affecting their service life and particle capture efficiency. As fiberglass filters capture particulate matter, their surface gradually becomes clogged over time, increasing air flow resistance, increasing equipment energy consumption, and potentially decreasing filtration efficiency.

[0003] During use, fiberglass filters have low particle capture efficiency, primarily due to their relatively large pore structure, which makes them ineffective at intercepting tiny particles. Furthermore, the surface properties of fiberglass allow particles to easily penetrate or bypass the fibers, reducing filtration effectiveness. The difficulty in removing and replacing these filters stems from their size and shape, as well as their mounting method. These filters often require specialized tools and skills to properly install and replace, making them difficult for average users. Conventional solutions include increasing the number of filter layers or using finer fiberglass to improve filtration efficiency, as well as improving the filter mounting structure to make it easier to remove and replace. However, increasing the number of layers or using finer fiberglass increases filter resistance, increasing energy consumption and potentially reducing airflow. Furthermore, finer fiberglass may pose greater risks to human health and the environment. While improving the mounting structure can improve user convenience, it can increase manufacturing cost and complexity, and it can be difficult to balance filtration efficiency and ease of use in the design. To sum up, although glass fiber filters are widely used in the field of air filtration, the complexity of their manufacturing process, the low capture efficiency during use, and the inconvenience of disassembly and replacement are their main disadvantages. Therefore, our unit now urgently needs a manufacturing process for high-capture-efficiency glass fiber filters and a portable disassembly and assembly device to solve the above problems. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a manufacturing process for a glass fiber filter with high capture efficiency and a portable disassembly and assembly device to solve the problems raised in the above background technology.

[0005] The present invention is achieved through the following technical solutions: a manufacturing process for a high-capture-efficiency glass fiber filter and a portable assembly and disassembly device, comprising the following steps:

[0006] S1: The raw material composition of the glass fiber filter is precisely controlled, and then calcined in a crucible to form a glass fiber melt. The internal composition of the melt is then monitored in real time using an XRF spectrometer to ensure the accuracy of the raw material composition during the pretreatment process.

[0007] S2: After cooling the glass fiber melt in S1, centrifugal spinning is carried out, and the temperature and humidity during the spinning process are precisely controlled. The fiber diameter distribution of the glass fiber spinning is then analyzed through the CCD image processing system to ensure that the spinning material in the glass fiber filter meets the requirements. The net is then laid and woven according to the specific method.

[0008] S3: After the spinning and weaving of the glass fiber melt in the S2 process is completed, the newly formed glass fiber filter is ultrasonically impregnated to improve the permeability of the coupling agent. At the same time, the flame retardant and coupling agent are mixed to form a composite industry. Ultrasonic vibration is used to achieve uniform penetration into the gaps between the glass fibers to form a joint modification effect of flame retardancy and coupling. It is then dried. After drying, the bipolar corona treatment technology is used to optimize the electret properties of the glass fiber filter;

[0009] S4: Use a servo hydraulic hot press to heat-press and shape the glass fiber filter, then use two-component polyurethane to seal the edge of the outer surface of the glass fiber filter, apply it to the outer surface of the glass fiber filter through slot extrusion, and then use an infrared thermal imager to monitor the curing status of the external adhesive layer in real time;

[0010] S5: Place the filter in the drying area and supply air through the FFU+HEPA combination for circulating ventilation. At the same time, establish an SPC control chart and conduct testing processes such as filtration efficiency, air permeability, charge density, and electrostatic analysis. It can be used after meeting the relevant standards.

[0011] As a preferred embodiment, quartz sand with a silica content ≥99.9%, calcined aluminum carbide with an alumina content ≥99.0%, and calcium borate are first used as the main raw materials, and the silica content is 52±0.5%, the alumina content is 15±0.5%, and the total amount of alkali metal oxides is <1.2%. Subsequently, the glass fiber raw materials are dynamically compensated by using a loss-in-weight feeder. The weight of each batch of raw materials is 5±0.2KG. After the process is completed, a SYH series three-dimensional motion mixer is used to mix at a speed of 10r / min for 30min. The mixing uniformity CV value must be ≤8%. After mixing, an infrared dryer is used to reduce the moisture content of the raw materials to below 0.1% before proceeding to the next process.

[0012] As a preferred embodiment, the dried glass fiber raw material is ground and then put into a pool kiln, and three zones are set up in the pool kiln, which are divided into a preheating zone, a melting zone and a clarification zone according to the specific use steps of the glass fiber raw material. The temperature is controlled, and the internal set temperatures of the three zones are: 900°C in the preheating zone, 1600°C in the melting zone, and 1400°C in the clarification zone. Quartz sand, alumina, and calcium pyrophosphate are charged in this order and are added in layers at intervals of ten minutes. The glass fiber material is then melted, and a variable frequency electromagnetic stirrer is used during the melting stage to promote the uniform distribution of the glass fiber material. Sulfur dioxide gas is introduced during the clarification process to promote the uniform distribution of the composition in the glass fiber.

[0013] As a preferred embodiment, during the melting stage in the pool furnace, a laser particle size analyzer is used to detect microbubbles in the melt, and the microbubbles b90 is required to be ≤ 10 μm to prevent fiber molding defects. During the drawing process of the glass fiber melt, a laser detection module is integrated under the drawing leak plate, and the fiber diameter fluctuation is dynamically fed back, and the drawing machine speed and temperature parameters are adjusted in conjunction to control the diameter of the glass fiber material.

[0014] As a preferred embodiment, the glass fiber melt flows out through a platinum-rhodium alloy leak plate, the pulling tension is dynamically adjusted by a servo motor, and the glass fiber melt is drawn, and the drawing speed is maintained at 3000-4000m / min. A composite weaving process is adopted in the weaving process, through alternating plain and twill layers, and at the same time, laser detection technology is used to monitor the weaving density, and the weaving equipment is linked to adjust the fiber feeding tension to ensure that the multi-layer structure of the glass fiber filter is uniform. After weaving is completed, the glass fiber filter material is assisted by high-frequency ultrasound to clean it, and the flame retardant and coupling agent are configured into a composite solution, and ultrasonic oscillation is used to achieve uniform penetration into the fiber gaps, and the flame retardant coating is completed, followed by a step-by-step drying method, first pre-baking at 75°C for 60 minutes to remove the surface solvent, and then curing at 120°C for 90 minutes to cover the flame retardant on the outer surface of the glass fiber material to form a film.

[0015] As a preferred embodiment, when the waste silk generated in the glass fiber drawing process enters the crusher through a plate chain conveyor, and the inner diameter of the cross-section of the waste silk crushed particles is reduced to less than 5mm, the waste silk crushed particles are secondary crushed by a wind separation device to form glass fiber powder ≤0.5mm in size, and then the waste silk is incinerated in an 800-1000℃ incinerator to completely decompose the residual wetting agent and produce clean glass powder. It then returns to the S1 process and is mixed with the pre-treated raw materials in a ratio of 1:8 and re-melted in the pool kiln for drawing. In actual use, the manufacturing process of high-capture efficiency glass fiber filter starts with the precise ratio of raw materials. High-purity quartz sand, calcined aluminum carbide and calcium borate are mixed according to the formula of 52±0.5% silica and 15±0.5% alumina, and the three-dimensional motion mixer ensures the uniformity CV value ≤8%. The raw materials are gradient melted in three zones of the pool kiln (preheating zone 900℃, melting zone 1600℃, and clarification zone 1400℃). The component uniformity is promoted by variable frequency electromagnetic stirring and sulfur dioxide gas injection. The melt is drawn into a wire at a speed of 3000-4000m / min through a platinum-rhodium alloy leak plate. The laser detection module adjusts the fiber diameter in real time. The base material is formed by a composite weaving process of alternating plain and twill. After ultrasonic impregnation to improve the permeability of the coupling agent, the electret performance is optimized by bipolar corona treatment. After hot pressing and setting, the edge is packaged by two-component polyurethane slit coating. Infrared thermal imaging monitors the curing process. The finished product is matured in a FFU+HEPA clean environment, and the filtration efficiency, air permeability and other indicators are monitored by SPC control charts. The waste silk is crushed and air-sorted, then recycled by high-temperature incineration and re-admixed with raw materials at a ratio of 1:8 for recycling.

[0016] A high-capture-efficiency glass fiber filter and a portable disassembly and assembly device, comprising: an outer shell and a filter body, a group of front guide louvers for air diversion are provided inside the outer shell, a group of front buckles for mutual positioning and buckling with the inner lining plate are provided at the center of the outer shell, a group of rotating shafts for movably supporting the inner lining plate are provided on the rear side of the upper end of the outer shell, and the characteristic is that two groups of limiting shaft shells for limited engagement with the rotating shaft are provided on the upper end of the inner lining plate, the interior of each group of limiting shaft shells is movably engaged with the interior of the rotating shaft, and the outer side of the rotating shaft is fixedly connected to the outer shell. The rear side of the inner lining shell is provided with a group of rear shells for placing the filter body, the rear side of the rear shell is provided with a group of rear guide louvers for air circulation, the rear shell is provided with a group of rear fixing holes for connecting and fixing with external air conditioners, purifiers and range hood equipment, and the connection between the rear shell and the inner lining plate is provided with several groups of rear buckles for snapping and positioning. The rear shell is provided with a group of filter cavities for placing the filter body, and the cross-section of the filter cavity is a rectangular structure when viewed from above, and the filter cavity is sealed and embedded with the filter body on all sides.

[0017] As a preferred embodiment, the filter body includes a front layer, a middle layer and an inner resistance cotton wire mesh. The outer surface of the front layer is provided with a group of limiting grilles for protecting the inner resistance cotton wire mesh. The limiting grilles are arranged in a diamond cross structure. The inner side of the limiting grilles is provided with a group of inner resistance cotton wire mesh for flexibly fitting the middle layer. The inner resistance cotton wire mesh and the inner side of the limiting grilles are fitted together. The rear side of the front layer is provided with a group of middle layers with high efficiency in capturing dust particles. The rear side of the middle layer is provided with a group of rear layers. When actually using the high capture efficiency glass fiber filter and the portable disassembly and assembly device, first pass the outer shell through The fixing holes are then installed at the air inlet position of equipment such as air conditioners, purifiers or range hoods. During installation, ensure that the front guide louvers face the direction of airflow and the rear guide louvers are aligned with the air outlet of the equipment. When the filter body needs to be replaced, press the rear clip at the connection between the rear shell and the inner lining plate to separate the rear shell from the inner lining plate. At the same time, open the inner lining plate by rotating the rotating shaft and the limit shaft shell, and vertically remove the old filter body from the rectangular filter cavity. Align the middle layer of glass fiber filter material and the rear layer inward in turn, and completely embed the filter into the filter cavity to achieve a sealed fit, thereby ensuring that the pipeline air of equipment such as air conditioners, purifiers or range hoods can be completely filtered.

[0018] As a preferred embodiment, the middle layer includes an outer transparent cotton layer, an outer guide air-permeable layer, an inner transparent cotton layer, an inner filter rod core layer, an inner bonding layer and an outer transparent cotton layer. The inner side of the outer transparent cotton layer is provided with a group of outer guide air-permeable layers for guiding the air. The outer guide air-permeable layer is provided with a plurality of groups of air holes for circulating the air. A lower end of the outer guide air-permeable layer is provided with a group of inner transparent cotton layers for ventilating the interior of the inner filter rod core layer. The inner filter rod core layer is provided with a plurality of groups of core rod bodies for adsorbing particulate matter in the air. The outer transparent cotton layer, the outer guide air-permeable layer, the inner transparent cotton layer, the inner filter rod core layer and the inner bonding layer constitute a group of inner filter core nets for filtering the air of external air conditioners, purifiers and range hood equipment. The inner filter core nets are provided with two groups, and the two groups of inner filter core nets are arranged in a symmetrical manner.

[0019] As a preferred embodiment, the inner filter rod core layer is provided with several groups of filter rod cores, and the filter rod core includes an outer core cotton, an adhesive layer and an inner core column. The filter rod core is a columnar structure, and several groups of filter rod cores are tightly fitted. The inner side of the outer core cotton is provided with a group of inner permeable nets for infiltrating particulate matter and grease in the air, and the inner side of the inner permeable net is provided with a group of inner core cottons for covering the outer side of the adhesive layer, and the inner side of the inner core cotton is provided with a group of adhesive layers for adhering to particulate matter and grease in the air, and the inner side of the adhesive layer is provided with a group of inner core columns for positioning it. In actual use, when using the glass fiber filter, it is necessary to ensure the correct installation direction of the middle layer composite filter element, and the outer transparent cotton layer should face the air inlet. On the other side, when the air flow passes through the pores of the outer guide breathable layer, it is first initially filtered by the outer transparent cotton layer, and then the air flow is evenly distributed to the inner filter rod core layer through the inner transparent cotton layer. After the filter rod core is pre-filtered by the outer core cotton, the inner permeable net performs gradient infiltration on grease and particulate matter, and the adhesion layer finally adsorbs fine pollutants. Two sets of symmetrically arranged inner filter core nets can form a dual-channel purification structure to increase the dust holding capacity. When replacing the filter element, the middle layer assembly needs to be taken out as a whole. During installation, the inner fitting layer needs to be accurately aligned with the adjacent filter layer to ensure that the air flow flows through the designed filtration path. When obvious oil stains are visible on the inner core column, the entire set of middle layer filter element components needs to be replaced. This structure achieves high capture efficiency while ensuring air permeability through the synergistic effect of multi-layer gradient filtration and dual-core nets.

[0020] After adopting the above technical solution, the beneficial effects of the present invention are as follows: by using a precise ratio of high-capture efficiency glass fiber filter, high-purity quartz sand, calcined aluminum carbide and calcium borate are mixed according to a formula of 52±0.5% silicon dioxide and 15±0.5% aluminum oxide, and a three-dimensional motion mixer is used to ensure a uniformity CV value of ≤8%. The raw materials are gradient melted in three zones of the tank kiln (preheating zone 900℃, melting zone 1600℃, and clarification zone 1400℃), and the components are uniformed by variable frequency electromagnetic stirring and sulfur dioxide gas injection. The melt passes through a platinum-rhodium alloy bushing at 3000-400℃. The fibers are drawn at a speed of 0 m / min, with a laser detection module controlling the fiber diameter in real time. A composite weaving process of alternating plain and twill weaves is used to form the substrate. Ultrasonic impregnation is used to enhance coupling agent penetration, and bipolar corona treatment is used to optimize electret performance. After hot pressing and shaping, the edges are sealed using a two-component polyurethane slit coating. Infrared thermal imaging monitors the curing process. The finished product is aged in an FFU+HEPA clean environment, and SPC control charts are used to monitor filtration efficiency, air permeability, and other indicators. Waste fibers are pulverized, air-sorted, and then recycled by high-temperature incineration. Raw materials are then mixed back into the fiber at a ratio of 1:8 for recycling.

[0021] First, install the outer shell through the rear fixing hole at the air inlet position of the air conditioner, purifier or range hood and other equipment. During installation, make sure that the front guide louver faces the direction of airflow and the rear guide louver is aligned with the air outlet of the equipment. When the filter body needs to be replaced, press the rear buckle at the connection between the rear shell and the inner lining plate to separate the rear shell and the inner lining plate. At the same time, rotate the inner lining plate through the cooperation of the rotating shaft and the limit shaft shell to open the old filter body vertically from the rectangular filter cavity. Align the middle layer of glass fiber filter material and the rear layer inward in turn, and completely embed the filter into the filter cavity to achieve a sealed fit, thereby ensuring that the pipeline air of the air conditioner, purifier or range hood and other equipment can be completely filtered;

[0022] When using the glass fiber filter, it is necessary to ensure the correct installation direction of the middle layer composite filter element. The outer transparent cotton layer should face the air inlet side. When the airflow passes through the pores of the outer guide air-permeable layer, it is first filtered by the outer transparent cotton layer. Then the airflow is evenly distributed to the inner filter rod core layer through the inner transparent cotton layer. After the filter rod core is pre-filtered by the outer core cotton, the inner permeable net performs gradient infiltration on grease and particulate matter, and the adhesion layer finally adsorbs fine pollutants. Two sets of symmetrically arranged inner filter core nets can form a dual-channel purification structure to increase the dust holding capacity. When replacing the filter element, the middle layer assembly needs to be removed as a whole. During installation, the inner bonding layer needs to be accurately aligned with the adjacent filter layer to ensure that the airflow flows through the designed filtration path. When obvious oil stains are visible on the inner core column, the entire set of middle layer filter element components needs to be replaced. This structure achieves high capture efficiency while ensuring air permeability through the synergistic effect of multi-layer gradient filtration and dual-core nets. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a technical flow chart of a manufacturing process for a high-collection-efficiency glass fiber filter screen according to the present invention;

[0025] Figure 2 This is a front and side structural schematic diagram of a high-collection-efficiency glass fiber filter and a portable assembly and disassembly device of the present invention;

[0026] Figure 3 This is a schematic diagram of the rear side structure of a high-collection-efficiency glass fiber filter and a rear shell in a portable disassembly and assembly device of the present invention;

[0027] Figure 4 This is a schematic diagram of the front and side structure of a filter cavity in a high-collection-efficiency glass fiber filter and a portable disassembly and assembly device of the present invention;

[0028] Figure 5 This is a schematic diagram of the front and side structure of a high-capturing-efficiency glass fiber filter and a filter body in a portable assembly and disassembly device of the present invention;

[0029] Figure 6 This is a schematic top view of the structure of a high-collection-efficiency glass fiber filter and a portable disassembly and assembly device of the present invention when the middle layer is separated;

[0030] Figure 7 This is a schematic diagram of the top view of the inner filter rod core layer and the inner filter rod core in a high-capturing-efficiency glass fiber filter and a portable disassembly and assembly device of the present invention;

[0031] In the figure: 1-housing, 2-front guide louver, 3-front buckle, 4-swivel, 5-inner lining plate, 6-rear housing, 7-rear guide louver, 8-rear buckle, 9-rear fixing hole, 10-limiting shaft housing, 11-filter cavity, 12-filter body;

[0032] 12a-front layer, 12b-middle layer, 12c-back layer, 12d-limiting grid mesh, 12e-internal resistance cotton wire drawing network;

[0033] b1-outer transparent cotton layer 1, b2-outer flow-guiding breathable layer 1, b3-inner transparent cotton layer 1, b4-inner filter rod core layer 1, b5-inner laminating layer 1, b6-inner laminating layer 2, b7-inner filter rod core layer 2, b8-inner transparent cotton layer 2, b9-outer flow-guiding breathable layer 2, b10-outer transparent cotton layer 2;

[0034] 7a-outer core cotton, 7b-inner permeable mesh, 7c-inner core cotton, 7d-adhesive layer, 7e-inner core column. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] See also Figure 1 A manufacturing process for a high-capturing-efficiency glass fiber filter and a portable assembly and disassembly device thereof include the following steps:

[0037] S1: The raw material composition of the glass fiber filter is precisely controlled, and then calcined in a crucible to form a glass fiber melt. The internal composition of the melt is then monitored in real time using an XRF spectrometer to ensure the accuracy of the raw material composition during the pretreatment process.

[0038] S2: After cooling the glass fiber melt in S1, centrifugal spinning is carried out, and the temperature and humidity during the spinning process are precisely controlled. The fiber diameter distribution of the glass fiber spinning is then analyzed through the CCD image processing system to ensure that the spinning material in the glass fiber filter meets the requirements. The net is then laid and woven according to the specific method.

[0039] S3: After the spinning and weaving of the glass fiber melt in the S2 process is completed, the newly formed glass fiber filter is ultrasonically impregnated to improve the permeability of the coupling agent. At the same time, the flame retardant and coupling agent are mixed to form a composite industry. Ultrasonic vibration is used to achieve uniform penetration into the gaps between the glass fibers to form a joint modification effect of flame retardancy and coupling. It is then dried. After drying, the bipolar corona treatment technology is used to optimize the electret properties of the glass fiber filter;

[0040] S4: Use a servo hydraulic hot press to heat-press and shape the glass fiber filter, then use two-component polyurethane to seal the edge of the outer surface of the glass fiber filter, apply it to the outer surface of the glass fiber filter through slot extrusion, and then use an infrared thermal imager to monitor the curing status of the external adhesive layer in real time;

[0041] S5: Place the filter in the drying area and supply air through the FFU+HEPA combination for circulating ventilation. At the same time, establish an SPC control chart and conduct testing processes such as filtration efficiency, air permeability, charge density, and electrostatic analysis. It can be used after meeting the relevant standards.

[0042] First, quartz sand with a silica content ≥99.9%, calcined aluminum carbide with an alumina content ≥99.0%, and calcium borate are used as the main raw materials, with a formula ratio of 52±0.5% for silica, 15±0.5% for alumina, and <1.2% for the total amount of alkali metal oxides. Then, a loss-in-weight feeder is used to dynamically compensate the glass fiber raw materials. The weight of each batch of raw materials is 5±0.2KG. After the process is completed, a SYH series three-dimensional motion mixer is used to mix at a speed of 10r / min for 30min. The mixing uniformity CV value must be ≤8%. After mixing, an infrared dryer is used to reduce the moisture content of the raw materials to below 0.1% before proceeding to the next process.

[0043] The dried glass fiber raw materials are ground and then put into the pool kiln, and three zones are set up in the pool kiln. According to the specific use steps of the glass fiber raw materials, they are divided into preheating zone, melting zone and clarification zone. The temperature is controlled, and the internal set temperatures of the three zones are: 900℃ in the preheating zone, 1600℃ in the melting zone, and 1400℃ in the clarification zone. Quartz sand, alumina and calcium sputtering are charged in this order and are added in layers at intervals of ten minutes. The glass fiber material is then melted. During the melting stage, a variable frequency electromagnetic stirrer is used to promote the uniform distribution of the glass fiber material. Sulfur dioxide gas is introduced during the clarification process to promote the uniform distribution of the composition in the glass fiber.

[0044] During the melting stage in the pool furnace, a laser particle size analyzer is used to detect microbubbles in the melt, and the microbubbles b90 is required to be ≤10μm to prevent fiber molding defects. During the drawing process of the glass fiber melt, a laser detection module is integrated under the drawing plate to dynamically feedback the fiber diameter fluctuations and jointly adjust the drawing machine speed and temperature parameters to control the diameter of the glass fiber material.

[0045] The glass fiber melt flows out through the platinum-rhodium alloy leak plate, and the pulling tension is dynamically adjusted by the servo motor. The glass fiber melt is drawn, and the drawing speed is maintained at 3000-4000m / min. A composite weaving process is adopted in the weaving process, through alternating plain and twill layers. At the same time, laser detection technology is used to monitor the weaving density, and the weaving equipment is linked to adjust the fiber feeding tension to ensure that the multi-layer structure of the glass fiber filter is uniform. After weaving is completed, the glass fiber filter material is assisted by high-frequency ultrasound to clean it, and the flame retardant and coupling agent are configured into a composite solution, and ultrasonic oscillation is used to achieve uniform penetration into the fiber gaps, and the flame retardant coating is completed. Then a step-by-step drying method is carried out, first pre-baking at 75°C for 60 minutes to remove the surface solvent, and then curing at 120°C for 90 minutes to cover the flame retardant on the outer surface of the glass fiber material to form a film.

[0046] See also Figure 1 , as the first embodiment of the present invention:

[0047] When the waste silk produced in the process of glass fiber drawing enters the crusher through the plate chain conveyor, and the inner diameter of the cross section of the waste silk crushed particles is reduced to less than 5mm, and the waste silk crushed particles are secondary crushed by the air separation device to form glass fiber powder of ≤0.5mm size. The waste silk is then incinerated in an 800-1000℃ incinerator to completely decompose the residual wetting agent and produce clean glass powder. It then returns to the S1 process and is mixed with the pretreated raw materials in a ratio of 1:8 and re-melted in the pool kiln for drawing. In actual use, the manufacturing process of high capture efficiency glass fiber filter starts with the precise ratio of raw materials. High-purity quartz sand, calcined aluminum carbide and calcium borate are mixed according to the formula of 52±0.5% silica and 15±0.5% alumina. The three-dimensional motion mixer ensures the uniformity CV value ≤8%. The raw materials are mixed in the pool kiln Gradient melting is carried out in three zones (preheating zone 900℃, melting zone 1600℃, and clarification zone 1400℃). Component uniformity is promoted by variable frequency electromagnetic stirring and sulfur dioxide gas injection. The melt is drawn through a platinum-rhodium alloy leak plate at a speed of 3000-4000m / min. The laser detection module adjusts the fiber diameter in real time. The base material is formed by a composite weaving process of alternating plain and twill. After ultrasonic impregnation to improve the permeability of the coupling agent, the electret performance is optimized by bipolar corona treatment. After hot pressing and setting, the edge is packaged by two-component polyurethane slit coating. Infrared thermal imaging monitors the curing process. The finished product is matured in a FFU+HEPA clean environment, and the filtration efficiency, air permeability and other indicators are monitored by SPC control charts. The waste silk is crushed and air-sorted, then recycled by high-temperature incineration, and re-admixed with raw materials at a ratio of 1:8 for recycling.

[0048] See also Figure 2-Figure 7 As a second embodiment of the present invention: a high-capture efficiency glass fiber filter and a portable disassembly and assembly device, comprising: a shell 1 and a filter body 12, a group of front guide louvers 2 for air diversion are provided inside the shell 1, a group of front buckles 3 for mutual positioning and buckling with the inner lining plate 5 are provided at the center of the shell 1, a group of rotating shafts 4 for movably supporting the inner lining plate 5 are provided on the rear side of the upper end of the shell 1, and two groups of limiting shaft shells 10 for limited engagement with the rotating shaft 4 are provided on the upper end of the inner lining plate 5. The interior of each group of limiting shaft shells 10 is movably engaged with the interior of the rotating shaft 4, and the outer side of the rotating shaft 4 is connected to the shell 1 Fixed connection, a group of rear shells 6 for placing the filter body 12 are provided on the rear side of the lining shell, a group of rear guide louvers 7 for air circulation are provided inside the rear side of the rear shell 6, a group of rear fixing holes 9 for connecting and fixing with external air conditioners, purifiers and range hood equipment are provided inside the rear shell 6, and several groups of rear buckles 8 for snap-fitting and positioning are provided at the connection between the rear shell 6 and the inner lining plate 5. A group of filter cavities 11 for placing the filter body 12 are provided inside the rear shell 6. The cross-section of the filter cavity 11 is a rectangular structure when viewed from above, and the filter cavity 11 is sealed and embedded with the filter body 12 on all sides.

[0049] The filter body 12 includes a front layer 12a, a middle layer 12b, a limiting grid 12d and an internal resistance cotton wire mesh 12e. The outer surface of the front layer 12a is provided with a group of limiting grids 12d for protecting the internal resistance cotton wire mesh 12e. The limiting grid 12d is arranged in a diamond cross structure. The inner side of the limiting grid 12d is provided with a group of internal resistance cotton wire mesh 12e for flexibly fitting the middle layer 12b. The internal resistance cotton wire mesh 12e and the inner side of the limiting grid 12d are fitted together. The rear side of the front layer 12a is provided with a group of middle layers 12b with high dust particle capture efficiency, and the rear side of the middle layer 12b is provided with a group of rear layers 12c. When actually using the high capture efficiency glass fiber filter and the portable disassembly and assembly device, first, The outer shell 1 is installed at the air inlet position of equipment such as air conditioners, purifiers or range hoods through the rear fixing hole 9. During installation, it is necessary to ensure that the front guide louvers 2 are facing the direction of airflow and the rear guide louvers 7 are aligned with the air outlet of the equipment. When the filter body 12 needs to be replaced, press the rear buckle 8 at the connection between the rear shell 6 and the inner lining plate 5 to separate the rear shell 6 from the inner lining plate 5. At the same time, the inner lining plate 5 is opened by rotating the rotating shaft 4 and the limiting shaft shell 10, and the old filter body 12 is vertically taken out from the rectangular filter cavity 11. The middle layer 12b glass fiber filter material and the rear layer 12c are aligned inward in turn, and the filter is completely embedded in the filter cavity 11 on all sides to achieve a sealed fit, thereby ensuring that the pipeline air of equipment such as air conditioners, purifiers or range hoods can be completely filtered.

[0050] See also Figure 2-Figure 7 As the third embodiment of the present invention: Based on the explanation in the second embodiment, further: the middle layer 12b includes an outer cotton permeable layer b1, an outer guide air permeable layer b2, an inner cotton permeable layer b3, an inner filter rod core layer b4, an inner bonding layer b5 and an outer cotton permeable layer b10, the inner side of the outer cotton permeable layer b1 is provided with a group of outer guide air permeable layers b2 for guiding air, the inner side of the outer guide air permeable layer b2 is provided with a plurality of groups of air holes for circulating air, and the lower end of the outer guide air permeable layer b2 is provided with a group of The inner filter rod core layer b4 is provided with an inner transparent cotton layer b3 for air permeability separation. The inner filter rod core layer b4 is provided with several groups of core rod bodies for adsorbing particulate matter inside the air. The outer transparent cotton layer b1, the outer guide air permeable layer b2, the inner transparent cotton layer b3, the inner filter rod core layer b4 and the inner bonding layer b5 constitute a group of inner filter core nets for filtering the air from external air conditioners, purifiers and range hood equipment. There are two groups of inner filter core nets, and the two groups of inner filter core nets are arranged in a symmetrical manner.

[0051] The inner filter rod core layer b4 is provided with several groups of filter rod cores, and the filter rod core includes an outer core cotton 7a, an adhesive layer 7d and an inner core column 7e. The filter rod core is a columnar structure, and several groups of filter rod cores are tightly fitted. The inner side of the outer core cotton 7a is provided with a group of inner permeable nets 7b for infiltrating particulate matter and grease in the air, and the inner side of the inner permeable net 7b is provided with a group of inner core cotton 7c for covering the outer side of the adhesive layer 7d, and the inner side of the inner core cotton 7c is provided with a group of adhesive layers 7d for adhering to particulate matter and grease in the air, and the inner side of the adhesive layer 7d is provided with a group of inner core columns 7e for positioning it. In actual use, when using the glass fiber filter, it is necessary to ensure the correct installation direction of the middle layer 12b composite filter element. The outer transparent cotton layer should face the air inlet side. When the air flows When passing through the pores of the outer guide air-permeable layer, the outer transparent cotton layer first performs preliminary filtration, and then the air flow is evenly distributed to the inner filter rod core layer through the inner transparent cotton layer. After the filter rod core is pre-filtered by the outer core cotton 7a, the inner permeable net 7b performs gradient infiltration on grease and particulate matter, and the adhesion layer 7d finally adsorbs fine pollutants. The two sets of symmetrically arranged inner filter core nets can form a dual-channel purification structure to increase the dust holding capacity. When replacing the filter element, the middle layer 12b component needs to be taken out as a whole. During installation, the inner bonding layer needs to be accurately aligned with the adjacent filter layer to ensure that the airflow flows through the designed filtration path. When obvious oil stains are visible on the inner core column 7e, the entire set of middle layer 12b filter element components needs to be replaced. This structure achieves high capture efficiency while ensuring air permeability through the synergistic effect of multi-layer gradient filtration and dual-core nets.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A manufacturing process for a high-capturing-efficiency glass fiber filter and a portable assembly and disassembly device, characterized in that: The following steps are involved: S1: The raw material composition of the glass fiber filter is precisely controlled, and then calcined in a crucible to form a glass fiber melt. The internal composition of the melt is then monitored in real time using an XRF spectrometer to ensure the accuracy of the raw material composition during the pretreatment process. S2: After cooling the glass fiber melt in S1, centrifugal spinning is carried out, and the temperature and humidity during the spinning process are precisely controlled. The fiber diameter distribution of the glass fiber spinning is then analyzed through the CCD image processing system to ensure that the spinning material in the glass fiber filter meets the requirements. The net is then laid and woven according to the specific method. S3: After the spinning and weaving of the glass fiber melt in the S2 process is completed, the newly formed glass fiber filter is ultrasonically impregnated to improve the permeability of the coupling agent. At the same time, the flame retardant and coupling agent are mixed to form a composite industry. Ultrasonic vibration is used to achieve uniform penetration into the gaps between the glass fibers to form a joint modification effect of flame retardancy and coupling. It is then dried. After drying, the bipolar corona treatment technology is used to optimize the electret properties of the glass fiber filter; S4: Use a servo hydraulic hot press to heat-press and shape the glass fiber filter, then use two-component polyurethane to seal the edge of the outer surface of the glass fiber filter, apply it to the outer surface of the glass fiber filter through slot extrusion, and then use an infrared thermal imager to monitor the curing status of the external adhesive layer in real time; S5: Place the filter in the drying area and supply air through the FFU+HEPA combination for circulating ventilation. At the same time, establish an SPC control chart and conduct testing processes such as filtration efficiency, air permeability, charge density, and electrostatic analysis. It can be used after meeting the relevant standards.

2. The manufacturing process of a high-capture-efficiency glass fiber filter according to claim 1, characterized in that: First, quartz sand with a silica content ≥99.9%, calcined aluminum carbide with an alumina content ≥99.0%, and calcium borate are used as the main raw materials, with a formula ratio of 52±0.5% for silica, 15±0.5% for alumina, and <1.2% for the total amount of alkali metal oxides. Then, a loss-in-weight feeder is used to dynamically compensate the glass fiber raw materials. The weight of each batch of raw materials is 5±0.2KG. After the process is completed, a SYH series three-dimensional motion mixer is used to mix at a speed of 10r / min for 30min. The mixing uniformity CV value must be ≤8%. After mixing, an infrared dryer is used to reduce the moisture content of the raw materials to below 0.1% before proceeding to the next process.

3. The manufacturing process of a high-capture-efficiency glass fiber filter according to claim 2, characterized in that: The dried glass fiber raw materials are ground and then put into the pool kiln, and three zones are set up in the pool kiln. According to the specific use steps of the glass fiber raw materials, they are divided into preheating zone, melting zone and clarification zone. The temperature is controlled, and the internal set temperatures of the three zones are: 900℃ in the preheating zone, 1600℃ in the melting zone, and 1400℃ in the clarification zone. Quartz sand, alumina and calcium sputtering are charged in this order and are added in layers at intervals of ten minutes. The glass fiber material is then melted. During the melting stage, a variable frequency electromagnetic stirrer is used to promote the uniform distribution of the glass fiber material. Sulfur dioxide gas is introduced during the clarification process to promote the uniform distribution of the composition in the glass fiber.

4. The manufacturing process of a high-capture-efficiency glass fiber filter according to claim 3, characterized in that: During the melting stage in the pool furnace, a laser particle size analyzer is used to detect microbubbles in the melt, and the microbubbles b90 is required to be ≤10μm to prevent fiber molding defects. During the drawing process of the glass fiber melt, a laser detection module is integrated under the drawing plate to dynamically feedback the fiber diameter fluctuations and adjust the drawing machine speed and temperature parameters in a linked manner to control the diameter of the glass fiber material.

5. The manufacturing process of a high-capture-efficiency glass fiber filter according to claim 1, characterized in that: The glass fiber melt flows out through the platinum-rhodium alloy leak plate, and the pulling tension is dynamically adjusted by the servo motor. The glass fiber melt is drawn, and the drawing speed is maintained at 3000-4000m / min. A composite weaving process is adopted in the weaving process, through alternating plain and twill layers. At the same time, laser detection technology is used to monitor the weaving density, and the weaving equipment is linked to adjust the fiber feeding tension to ensure that the multi-layer structure of the glass fiber filter is uniform. After weaving is completed, the glass fiber filter material is assisted by high-frequency ultrasound to clean it, and the flame retardant and coupling agent are configured into a composite solution, and ultrasonic oscillation is used to achieve uniform penetration into the fiber gaps, and the flame retardant coating is completed. Then a step-by-step drying method is carried out, first pre-baking at 75°C for 60 minutes to remove the surface solvent, and then curing at 120°C for 90 minutes to cover the flame retardant on the outer surface of the glass fiber material to form a film.

6. The manufacturing process of a high-capture-efficiency glass fiber filter according to claim 1, characterized in that: When the waste silk is produced in the process of glass fiber drawing, it enters the crusher through the plate chain conveyor, and the inner diameter of the cross-section of the waste silk particles is reduced to less than 5mm. The waste silk particles are crushed for the second time with the help of the air separation device to form glass fiber powder with a size of ≤0.5mm. The waste silk is then incinerated in an incinerator at 800-1000℃ to completely decompose the residual wetting agent and produce clean glass powder. It then returns to the S1 process and is mixed with the pre-treated raw materials at a ratio of 1:8 and then re-melted in the pool kiln for drawing.

7. A high-capture-efficiency glass fiber filter and a portable assembly and disassembly device, comprising: The invention relates to a shell (1) and a filter body (12), wherein a group of front guide louvers (2) for guiding air are provided inside the shell (1), a group of front buckles (3) for mutually positioning and buckling with the inner lining plate (5) are provided at the center position of the shell (1), a group of rotating shafts (4) for movably supporting the inner lining plate (5) are provided on the rear side of the upper end of the shell (1), and the characteristic is that two groups of limiting shaft shells (10) for limiting and engaging with the rotating shaft (4) are provided on the upper end of the inner lining plate (5), the interior of each group of limiting shaft shells (10) is movably engaged with the interior of the rotating shaft (4), and the outer side of the rotating shaft (4) is fixedly connected to the shell (1), and the rear side of the inner lining shell is provided A rear shell (6) for accommodating a filter body (12); a rear guide louver (7) for air circulation is provided inside the rear side of the rear shell (6); a rear fixing hole (9) for connecting and fixing with an external air conditioner, a purifier and a range hood device is provided inside the rear shell (6); a plurality of rear buckles (8) for fastening and positioning are provided at the connection between the rear shell (6) and the inner lining plate (5); a filter cavity (11) for accommodating the filter body (12) is provided inside the rear shell (6); the filter cavity (11) has a rectangular structure in a top view cross section, and the filter cavity (11) is sealed and embedded with the filter body (12) on all sides.

8. The high-capture-efficiency glass fiber filter and portable assembly and disassembly device according to claim 7, characterized in that: The filter body (12) comprises a front layer (12a), a middle layer (12b) and an internal resistance cotton wire drawing network (12e); the outer surface of the front layer (12a) is provided with a group of limiting grid meshes (12d) for protecting the internal resistance cotton wire drawing network (12e); the limiting grid meshes (12d) are arranged in a diamond-shaped cross structure; the inner side of the limiting grid mesh (12d) is provided with a group of internal resistance cotton wire drawing networks (12e) for flexibly fitting the middle layer (12b); the internal resistance cotton wire drawing networks (12e) and the inner side of the limiting grid mesh (12d) are interlocked and fitted with each other; the rear side of the front layer (12a) is provided with a group of middle layers (12b) with high dust particle capture efficiency; the rear side of the middle layer (12b) is provided with a group of rear layers (12c).

9. The high-capture-efficiency glass fiber filter and portable assembly and disassembly device according to claim 8, characterized in that: The middle layer (12b) includes an outer permeable cotton layer (b1), an outer flow-guiding breathable layer (b2), an inner permeable cotton layer (b3), an inner filter rod core layer (b4), an inner bonding layer (b5) and an outer permeable cotton layer (b10). The inner side of the outer permeable cotton layer (b1) is provided with a group of outer flow-guiding breathable layers (b2) for guiding air flow. The inner side of the outer flow-guiding breathable layer (b2) is provided with a plurality of groups of air holes for circulating air. The lower end of the outer flow-guiding breathable layer (b2) is provided with a group of air holes for guiding the inner filter rod core layer (b4). An inner permeable cotton layer (b3) for internal air permeability separation, the inner filter rod core layer (b4) is provided with a plurality of core rod bodies for adsorbing particulate matter inside the air, the outer permeable cotton layer (b1), the outer guide air permeable layer (b2), the inner permeable cotton layer (b3), the inner filter rod core layer (b4) and the inner bonding layer (b5) constitute a group of inner filter core nets for filtering the air of external air conditioners, purifiers and range hood equipment, and the inner filter core nets are provided with two groups, and the two groups of inner filter core nets are arranged in a symmetrical manner.

10. The high-collection-efficiency glass fiber filter and portable assembly and disassembly device according to claim 8, characterized in that: The inner filter rod core layer (b4) is provided with a plurality of groups of filter rod cores, the filter rod cores comprising an outer core cotton (7a), an adhesive layer (7d) and an inner core column (7e), the filter rod core being a columnar structure, and the plurality of groups of filter rod cores being tightly fitted together, the inner side of the outer core cotton (7a) being provided with a group of inner permeable nets (7b) for infiltrating particulate matter and grease in the air, the inner side of the inner permeable nets (7b) being provided with a group of inner core cottons (7c) for covering the outer side of the adhesive layer (7d), the inner side of the inner core cotton (7c) being provided with a group of adhesive layers (7d) for adhering particulate matter and grease in the air, and the inner side of the adhesive layer (7d) being provided with a group of inner core columns (7e) for positioning the same.

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