Monomer suction device for chinlon production line
By designing a monomer suction device with activated carbon adsorption and anti-clogging filtration mechanism on the nylon production line, the problems of powder adhesion and smoke diffusion caused by monomer volatilization near the spinneret are solved, achieving efficient purification and environmentally friendly emissions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 福建丰帝锦纶有限公司
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-26
AI Technical Summary
During the spinning process of nylon production, the volatilization of monomers near the spinneret causes white powder to adhere and monomer fumes to spread, affecting spinning conditions and the environment. Existing equipment has failed to effectively treat harmful gases, resulting in air pollution.
A single-unit suction device for a nylon production line was designed, comprising an activated carbon adsorption mechanism and an anti-clogging filtration mechanism. It adsorbs harmful gases through activated carbon particles, prevents agglomeration by flipping plates, and cleans the filter screen with a poking rod to ensure adsorption and filtration efficiency.
It effectively adsorbs harmful gases, prevents activated carbon from clumping, improves purification efficiency, reduces monomer residue, lowers the risk of environmental pollution, extends filter life, and meets environmental emission standards.
Smart Images

Figure CN224280581U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nylon production technology, specifically to a monomer suction device for a nylon production line. Background Technology
[0002] In nylon spinning, the polymer raw material is typically melted in an extruder, transported through pipelines to the spinning box, and then metered and oriented by a metering pump to the spinning assembly before being extruded from the spinneret. Spinning requires cooling and solidification. The monomers in the melt volatilize after being extruded from the spinneret, and upon cooling, they easily form a white powder near the spinneret, adhering to the side-blowing air mesh opening and under the spinneret. If not handled promptly, a large amount of monomeric fumes will appear in the workshop, deteriorating spinning conditions and affecting normal spinning.
[0003] According to Chinese Patent Publication No. CN210104130U, a monomer suction device for a nylon production line is disclosed. Its features include a side-blowing device, a spinning box above the side-blowing device, a spinning assembly inside the spinning box, a spinneret at the bottom of the spinning assembly, a suction port connector outside the side-blowing device, a support base below the suction port connector, the suction port connector being inverted W-shape, the suction port connector being connected to an air regulating pipe, the air regulating pipe being connected to a connecting pipe, and the connecting pipe being connected to a water jet device; it employs a combination of air and water suction. The integrated structural design can effectively remove monomers generated during the spinning process. The suction port adopts a W-shaped structure design, which improves the uniformity of suction force at the port, reduces yarn vibration, and lowers yarn unevenness, thus helping to improve spinning quality and reduce production costs. The air regulating valve enables controllable airflow at the suction port, adapting to different types of nylon spinning. During use, the gas generated in production is harmful. If it is directly sucked and discharged into the air, it will easily cause air pollution. Therefore, it needs to be treated before being discharged. Hence, a monomer suction device for nylon production lines is proposed to solve the above-mentioned problems. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a monomer suction device for nylon production lines, which addresses the shortcomings of the prior art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a monomer suction device for a nylon production line, including a processing box, a conveying pipe connected to the left side of the processing box, a first processing box connected to the left side of the conveying pipe, a second processing box connected to the left side of the first processing box, a discharge pipe connected to the left side of the second processing box, an activated carbon adsorption mechanism provided inside the second processing box, the activated carbon adsorption mechanism including an electric push rod, the electric push rod being fixedly connected to the inner wall of the second processing box, and a fixing plate being fixedly connected to the front of the electric push rod.
[0006] Preferably, a slide rod is fixedly connected inside the second processing box, and a first sliding sleeve is movably fitted onto the outer surface of the slide rod, the first sliding sleeve being fixedly connected to the bottom of the fixed plate.
[0007] Preferably, a flipping plate is fixedly connected to the bottom of the first sliding sleeve. The flipping plate is designed to flip the activated carbon particles to prevent the activated carbon from clumping due to long-term adsorption, thereby ensuring that the activated carbon always maintains good adsorption performance. A baffle is fixedly connected inside the second treatment box. Activated carbon particles are placed between the baffle and the left inner wall of the second treatment box. Several holes are opened on the baffle. An abutment rod is fixedly connected to the right side of the first sliding sleeve.
[0008] Preferably, the second processing box is provided with an anti-clogging filter mechanism, which includes a filter screen. The filter screen is disposed between the first processing box and the second processing box and is used to filter dust.
[0009] Preferably, a fixing rod is fixedly connected to the inner wall of the second processing box, a second sliding sleeve is movably sleeved on the outer wall of the fixing rod, and a spring is movably sleeved on the outer wall of the fixing rod.
[0010] Preferably, a connecting plate is fixedly connected to the bottom of the second sliding sleeve, a protrusion is fixedly connected to the left side of the connecting plate, and a plurality of poking rods are fixedly connected to the right side of the connecting plate. The plurality of poking rods correspond one-to-one with the positions of the filter holes on the filter screen, and the poking rods are set to pok off the dust in the holes inside the filter screen.
[0011] The present invention adopts the above technical solution, which can bring the following beneficial effects:
[0012] 1. The nylon production line uses a monomer suction device. Activated carbon granules are placed inside the second treatment box to adsorb harmful gases. At the same time, the design of the flipping plate is used to flip the activated carbon granules to prevent the activated carbon from clumping due to long-term adsorption. This ensures that the activated carbon always maintains good adsorption performance, further improves adsorption efficiency, reduces monomer residue, reduces the risk of environmental pollution, and improves the purification effect on harmful gases.
[0013] 2. This nylon production line uses a single suction device, which filters dust through a filter screen. The punch rod can accurately punch away dust and impurities on the filter screen, ensuring the permeability of the filter screen, extending its service life, and ensuring filtration efficiency, thereby improving the efficiency of gas purification. Attached Figure Description
[0014] Figure 1 This is a front view of the present invention;
[0015] Figure 2 This is a first sectional view of the present invention;
[0016] Figure 3 This is a second sectional view of the present invention;
[0017] Figure 4 This is an enlarged view of section A of this utility model.
[0018] In the diagram: 1. Processing box; 2. Conveying pipe; 3. First processing box; 4. Second processing box; 5. Discharge pipe; 6. Activated carbon adsorption mechanism; 611. Electric push rod; 612. Fixing plate; 613. Sliding rod; 614. First sliding sleeve; 615. Flipping plate; 616. Baffle; 617. Abutting rod; 7. Anti-clogging filter mechanism; 711. Fixing rod; 712. Second sliding sleeve; 713. Spring; 714. Connecting plate; 715. Protrusion; 716. Stamping rod; 717. Filter screen. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 One embodiment of this utility model is as follows: A monomer suction device for a nylon production line includes a processing box 1. A conveying pipe 2 is connected to the left side of the processing box 1. A first processing box 3 is connected to the left side of the conveying pipe 2. A second processing box 4 is connected to the left side of the first processing box 3. A discharge pipe 5 is connected to the left side of the second processing box 4. An activated carbon adsorption mechanism 6 is provided inside the second processing box 4. The activated carbon adsorption mechanism 6 includes an electric push rod 611, which is fixedly connected to the inner wall of the second processing box 4. A fixing plate 612 is fixedly connected to the front of the electric push rod 611. A sliding rod 613 is fixedly connected inside the second processing box 4. A first sliding sleeve 614 is movably sleeved on the outer surface of the sliding rod 613. The first sliding sleeve 614 is fixedly connected to the bottom of the fixing plate 612. A flipping plate 615 is fixedly connected to the bottom of the first sliding sleeve 614. A baffle 616 is fixedly connected inside the second processing box 4. The baffle 616 is connected to the second processing box 4. Activated carbon particles are placed between the left inner walls, and several holes are opened on the baffle 616. An abutment rod 617 is fixedly connected to the right side of the first sliding sleeve 614.
[0021] Working Principle: During nylon spinning, monomers in the melt are extruded from the spinneret and evaporate upon cooling, forming harmful gases. These gases are first collected by a suction device and then enter processing chamber 1 through conveying pipe 2. Processing chamber 1 serves as the initial concentration area for the gases, smoothly conveying the monomer gases to subsequent processing stages. The monomer gases then enter the first processing chamber 3 from processing chamber 1 through conveying pipe 2. A filter screen 717 is installed between the first processing chamber 3 and the second processing chamber 4. Its function is to filter dust and impurities in the gases, preventing these particles from entering the subsequent adsorption stages and affecting the adsorption effect. Activated carbon particles are placed inside the second processing chamber 4 to adsorb monomers from the harmful gases. Activated carbon granules have a high specific surface area and adsorption capacity, which can effectively adsorb harmful substances in the gas, reduce monomer residue, and reduce the risk of environmental pollution. When the electric push rod 611 is activated, the electric push rod 611 pushes the fixed plate 612 to move. The movement of the fixed plate 612 will drive the first sliding sleeve 614 at the bottom to move, thereby driving the flipping plate 615 to move. The flipping plate 615 is designed to flip the activated carbon granules to prevent the activated carbon from clumping due to long-term adsorption, thereby ensuring that the activated carbon always maintains good adsorption performance.
[0022] Please see Figure 1-4 Based on the above embodiments, in another embodiment of the present invention, the second processing box 4 is provided with an anti-clogging filter mechanism 7. The anti-clogging filter mechanism 7 includes a filter screen 717, which is disposed between the first processing box 3 and the second processing box 4. A fixing rod 711 is fixedly connected to the inner wall of the second processing box 4. A second sliding sleeve 712 is movably sleeved on the outer wall of the fixing rod 711. A spring 713 is movably sleeved on the outer wall of the fixing rod 711. A connecting plate 714 is fixedly connected to the bottom of the second sliding sleeve 712. A protrusion 715 is fixedly connected to the left side of the connecting plate 714. A plurality of poking rods 716 are fixedly connected to the right side of the connecting plate 714. The plurality of poking rods 716 correspond one-to-one with the filter holes on the filter screen 717. The poking rods 716 are used to pok off the dust in the holes inside the filter screen 717.
[0023] Working principle: The monomer gas enters the first processing box 3 from the processing box 1 through the conveying pipe 2. A filter screen 717 is set between the first processing box 3 and the second processing box 4. Its function is to filter dust and impurities in the gas and prevent these particles from entering the subsequent adsorption stage and affecting the adsorption effect. When the first sliding sleeve 614 moves, it drives the contact rod 617 to move. The movement of the contact rod 617 will abut against the protrusion 715, thereby causing the connecting plate 714 to move to the right, thereby driving the punching rod 716 to accurately punch off the dust and impurities on the filter screen 717, restoring the permeability of the filter screen 717 and ensuring the filtration efficiency. When the contact rod 617 is separated from the protrusion 715, the punching rod 716 will automatically reset. The gas after activated carbon adsorption treatment is discharged through the discharge pipe (5). Due to the efficient adsorption of activated carbon, the monomer content in the discharged gas is significantly reduced, which meets the environmental protection emission standards and avoids pollution to the environment.
[0024] This utility model provides a monomer suction device for a nylon production line. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.
Claims
1. A monomer suction device for a nylon production line, comprising a processing box (1), characterized in that: A conveying pipe (2) is connected to the left side of the processing box (1), a first processing box (3) is connected to the left side of the conveying pipe (2), a second processing box (4) is connected to the left side of the first processing box (3), and a discharge pipe (5) is connected to the left side of the second processing box (4). The second processing box (4) is equipped with an activated carbon adsorption mechanism (6), which includes an electric push rod (611). The electric push rod (611) is fixedly connected to the inner wall of the second processing box (4), and a fixing plate (612) is fixedly connected to the front of the electric push rod (611).
2. The monomer suction device for a nylon production line according to claim 1, characterized in that: The second processing box (4) is fixedly connected to a slide rod (613), and a first slide sleeve (614) is movably sleeved on the outer surface of the slide rod (613). The first slide sleeve (614) is fixedly connected to the bottom of the fixed plate (612).
3. The monomer suction device for a nylon production line according to claim 2, characterized in that: A flip plate (615) is fixedly connected to the bottom of the first sliding sleeve (614), and a baffle (616) is fixedly connected inside the second processing box (4). The baffle (616) has several holes, and an abutment rod (617) is fixedly connected to the right side of the first sliding sleeve (614).
4. The monomer suction device for a nylon production line according to claim 1, characterized in that: The second processing box (4) is provided with an anti-clogging filter mechanism (7), which includes a filter screen (717) and is located between the first processing box (3) and the second processing box (4).
5. A monomer suction device for a nylon production line according to claim 4, characterized in that: The inner wall of the second processing box (4) is fixedly connected to a fixing rod (711), the outer wall of the fixing rod (711) is movably sleeved with a second sliding sleeve (712), and the outer wall of the fixing rod (711) is movably sleeved with a spring (713).
6. The monomer suction device for a nylon production line according to claim 5, characterized in that: The bottom of the second sliding sleeve (712) is fixedly connected to a connecting plate (714), the left side of the connecting plate (714) is fixedly connected to a protrusion (715), and the right side of the connecting plate (714) is fixedly connected to a plurality of poking rods (716), the plurality of poking rods (716) correspond one-to-one with the position of the filter hole on the filter screen (717).