A processing method of a fixing belt of a glue-free dust removal filter cartridge

Abstract

The application provides a processing method of a glue-free dust removal filter cartridge fixing belt, which comprises the following steps: step one, cutting the folded filter material into single filter cartridge specifications according to the filter cartridge specifications; step two, sewing the filter material cut into single filter cartridge specifications along the length direction of the filter cartridge; step three, setting a fixing point of the fixing belt every 35-50 cm from one end of the filter material cut into single filter cartridge specifications along the length direction of the filter cartridge; step four, making the non-woven fabric adhere to and be sewn with the filter material cut into single filter cartridge specifications along the vertical plane of the length direction of the filter material at the fixing point; step five, passing the framework through the filter material from the inside, and welding the non-woven fabric at the fixing points along the length direction of the filter material and the filter material peaks one by one; step six, sewing the belt; and step seven, installing the top cover and the bottom cover at the top and the bottom of the filter cartridge. According to the application, the process of fixing the filter cartridge can be realized without adding glue, the production is more convenient, the efficiency is higher, and the formaldehyde emission is reduced.

Description

Technical Field

[0001] This invention relates to the field of dust removal and filtration, and in particular to a method for processing a glue-free dust removal filter cartridge fixing belt. Background Technology

[0002] The existing filter cartridges only have a fixing ring on the outside of the pleated filter media. The pleats of the pleated filter media are only evenly distributed near the outside, and the dispersion effect is not good near the inside. Moreover, there is no fixation between the pleated filter media and the frame. During the filtration process, the pleated filter media will shake under the action of wind, and will rub against the frame, making it easy to break.

[0003] Furthermore, the current practice of using filter cartridge straps or metal rings to evenly distribute the pleats in dust collector filter cartridge production presents several problems. For example, both straps and rings require glue during processing, leading to higher costs, formaldehyde release during manufacturing, and cumbersome, inefficient procedures. Filter cartridge straps are also prone to breakage later in the filter cartridge's lifespan. This is because during ultrasonic welding, the strap only partially contacts the sharp corners of the pleats, making the high-frequency backflushing during dust removal highly susceptible to tensile stress, causing filter cartridge failure. While metal rings offer greater stability and avoid the problems associated with straps, their manufacturing process is more complex, requiring a large amount of glue to secure the rings, significantly increasing production costs and reducing efficiency.

[0004] In addition, existing technologies mainly include:

[0005] (1) No ultrasonic welding, using straps: After folding the filter material, sew the filter material according to the size of a filter cylinder. The frame passes through the filter material from the inside. After tightening the straps at a fixed length, sew them together. Glue is injected between the filter material and the straps to fix the straps in place and to stick the end straps to the filter material.

[0006] (2) Ultrasonic welding, using straps: After folding the filter material, use ultrasonic welding to weld the straps to the filter material folds about 1cm long at fixed positions. Pass the skeleton through the filter material from the inside, tighten the straps and then sew them together with ultrasonic welding. Pour glue between the filter material and the straps to fix the straps in place and to stick the end straps to the filter material.

[0007] (3) Metal ring: After folding the filter media, sew the filter media according to the size of a filter cylinder. The skeleton passes through the filter media from the inside. The metal ring is put on the filter media. The filter media is aligned according to the peak and valley positions and positioned in the length direction. Then, glue is injected between the filter media and the metal ring to fix them. Summary of the Invention

[0008] The technical solution adopted by this application to solve its technical problem is: a method for processing a glue-free dust collector filter cartridge fixing belt, including:

[0009] Step 1: Cut the folded filter media into individual filter cartridge sizes.

[0010] Step 2: Sew the filter media cut into individual filter cartridge sizes along the length of the filter cartridge;

[0011] Step 3: Starting from one end of the filter media cut into individual filter cartridge sizes along the length of the filter cartridge, set a fixing point for the fixing strap every 35-50cm.

[0012] Step 4: At the fixed point, attach and sew the non-woven fabric perpendicular to the length of the filter material to the filter material cut into individual filter cartridge sizes.

[0013] Step 5: Insert the filter material through the frame from the inside;

[0014] Step 6: Use a cable tie to weld the nonwoven fabric at the peak of the filter media to the fixed position along the length of the filter media one by one;

[0015] Step 7: Install the top cover and bottom cover on the top and bottom of the filter cartridge.

[0016] This processing method achieves efficient dust removal of the filter cartridge without the need for glue, ensuring the service life of the filter cartridge. Compared with existing filter cartridge straps, it significantly improves the service life of the filter cartridge, achieving the same performance as metal rings, greatly improving production efficiency. At the same time, it can be achieved without the use of glue, reducing formaldehyde emissions and significantly lowering production costs.

[0017] Specifically, the materials used in filter media include: polyester, polyphenylene sulfide, aramid, polytetrafluoroethylene, polyimide, acrylic, etc.

[0018] Specifically, the individual filter cartridges are available in diameters of 130mm and 160mm, and in lengths of 1.6m, 2.4m, and 3m.

[0019] Specifically, the nonwoven fabric and filter material are made of the same material; the nonwoven fabric has a basis weight of 300-500 g / m², a thickness of 0.9-1.8 mm, a tensile strength of >700 N / 5 cm, and a width of 1.5-3 cm.

[0020] Specifically, the belt and filter media are made of the same material; the belt width is 1.5-3cm, the tensile strength is >2500N / 5cm, and the elongation is <15%.

[0021] Specifically, the suturing method is ultrasonic suturing.

[0022] Specifically, the welding method is ultrasonic welding.

[0023] Specifically, the straps are the same width as the nonwoven fabric.

[0024] The beneficial effects of this application are as follows:

[0025] (1) Through this invention, the process of fixing the filter cartridge can be achieved without adding glue, making production more convenient, more efficient, and reducing formaldehyde emissions;

[0026] (2) Through this invention patent, the non-woven fabric and filter material are fully ultrasonically composited, with high strength. After the non-woven fabric is bent, the ultrasonic welding area between it and the strap increases, which greatly improves the strong connection between the strap and the filter material. At the same time, the strap and non-woven fabric do not fall off, which will not affect the function of the filter cartridge, nor will it damage the filter cartridge.

[0027] (3) This invention patent eliminates the need for glue, resulting in lower costs compared to current technologies;

[0028] (4) The sharp peaks of the original filter material after folding are transformed into arcs after the non-woven fabric and filter material are fully welded together, which greatly increases the welding area between the filter material and the non-woven fabric and increases the connection strength between the strap and the filter material, so there is no need to use glue.

[0029] In the original pleated filter media, adjacent media pieces were bonded together at the "troughs," preventing them from functioning properly and reducing their efficiency. After the non-woven fabric is fully welded to the filter media, it's equivalent to filling the "troughs" with two layers of non-woven fabric, preventing the media pieces outside the straps from bonding together at the "troughs." The non-woven fabric acts as a "limiting" element. Compared to current technologies, this significantly improves the efficiency of the filter media. Attached Figure Description

[0030] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of this application. Other embodiments and many anticipated advantages of these embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0031] Figure 1 This is a flowchart of a method for processing a glue-free dust collector filter cartridge fixing belt according to an embodiment of this application;

[0032] Figure 2 This is a structural diagram of a glue-free dust removal filter cartridge according to an embodiment of this application. Detailed Implementation

[0033] In the following detailed description, reference is made to the accompanying drawings, which form part of the detailed description and illustrate illustrative specific embodiments in which the present application may be practiced. In this regard, directional terms such as “top,” “bottom,” “left,” “right,” “up,” “down,” etc., are used with reference to the orientation of the described figures. Because components of the embodiments can be positioned in several different orientations, directional terms are used for illustrative purposes and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present application. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present application is defined by the appended claims.

[0034] This application proposes a method for processing adhesive-free dust collector filter cartridge fixing belts. Figure 1 This is a flowchart illustrating a method for processing a glue-free dust collector filter cartridge fixing belt according to an embodiment of this application. Figure 2 This is a structural diagram of a glue-free dust collector filter cartridge according to an embodiment of this application, as shown below. Figure 1 and Figure 2 As shown, a method for processing a glue-free dust collector filter cartridge fixing belt includes:

[0035] Step 1: Cut the folded filter media into individual filter cartridge sizes.

[0036] Step 2: Sew the filter media cut into individual filter cartridge sizes along the length of the filter cartridge, using ultrasonic sewing.

[0037] Step 3: Starting from one end of the filter media cut into individual filter cartridge sizes along the length of the filter cartridge, set a fixing point for the fixing strap every 35-50cm.

[0038] Step 4: At the fixed point, attach and sew the non-woven fabric perpendicular to the length of the filter material to the filter material cut into individual filter cartridge sizes, using ultrasonic sewing.

[0039] Step 5: Insert the filter material through the frame from the inside;

[0040] Step 6: Use a strap to weld the nonwoven fabric at the peak of the filter media to a fixed position along the length of the filter media one by one. The welding method is ultrasonic welding.

[0041] Step 7: Install the top cover and bottom cover on the top and bottom of the filter cartridge.

[0042] The key technical point is that a non-woven fabric of the same width as the strap is fully welded to the filter material, and then welded to the strap. The connection between the filter material and the strap is through the non-woven fabric.

[0043] Specifically, the materials used in filter media include: polyester, polyphenylene sulfide, aramid, polytetrafluoroethylene, polyimide, acrylic, etc.

[0044] Individual filter cartridges are available in diameters of 130mm and 160mm, and lengths of 1.6m, 2.4m, and 3m.

[0045] The nonwoven fabric and filter material are made of the same material; the nonwoven fabric has a basis weight of 300-500 g / m², a thickness of 0.9-1.8 mm, a tensile strength of >700 N / 5 cm, and a width of 1.5-3 cm.

[0046] The belt and filter media are made of the same material; the belt width is 1.5-3cm, the tensile strength is >2500N / 5cm, and the elongation is <15%.

[0047] It is obvious that those skilled in the art can make various modifications and alterations to the embodiments of this application without departing from the spirit and scope of this application. In this way, this application also aims to cover such modifications and alterations if they fall within the scope of the claims and their equivalents. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are described in mutually different dependent claims does not indicate that a combination of these measures cannot be used for profit. Any reference numerals in the claims should not be considered limiting in scope.

Claims

1. A method for processing a glue-free dust collector filter cartridge fixing belt, characterized in that, include: Step 1: Cut the folded filter media into individual filter cartridge sizes. Step 2: Sew the filter media, cut into individual filter cartridge sizes, along the length of the filter cartridge; Step 3: Starting from one end of the filter media cut into individual filter cartridge specifications along the length of the filter cartridge, set a fixing point for the fixing strap every 35-50cm. Step 4: At the fixed point, attach and sew the nonwoven fabric perpendicular to the length of the filter material to the filter material cut into individual filter cartridge sizes; Step 5: Pass the frame through the filter material from the inside; Step 6: After welding the non-woven fabric of the same width as the strap to the filter material, the sharp peaks of the filter material after folding are transformed into arcs, and the valleys of the filter material are filled with non-woven fabric of two thicknesses, so that the two filter materials located at the valleys in other filter material parts outside the strap will not stick together. Then, the strap is used to weld the non-woven fabric at the peaks of the filter material one by one at a fixed position in the length direction of the filter material. Step 7: Install the top cover and bottom cover on the top and bottom of the filter cartridge.

2. The method for processing a glue-free dust collector filter cartridge fixing belt according to claim 1, characterized in that, The materials used in the filter media include: polyester, polyphenylene sulfide, aramid, polytetrafluoroethylene, polyimide, and acrylic.

3. The method for processing a glue-free dust collector filter cartridge fixing belt according to claim 1, characterized in that, The individual filter cartridges are available in diameters of 130mm and 160mm, and lengths of 1.6m, 2.4m, and 3m.

4. The method for processing a glue-free dust collector filter cartridge fixing belt according to claim 1, characterized in that, The nonwoven fabric and the filter material are made of the same material; the nonwoven fabric has a basis weight of 300-500 g / m², a thickness of 0.9-1.8 mm, a tensile strength of >700 N / 5 cm, and a width of 1.5-3 cm.

5. The method for processing a glue-free dust collector filter cartridge fixing belt according to claim 4, characterized in that, The strap and the filter material are made of the same material; the strap width is 1.5-3cm, the tensile strength is >2500N / 5cm, and the elongation is <15%.

6. The method for processing a glue-free dust collector filter cartridge fixing belt according to claim 1, characterized in that, The suturing method is ultrasonic suturing.

7. The method for processing a glue-free dust collector filter cartridge fixing belt according to claim 1, characterized in that, The welding method is ultrasonic welding.

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