Returned cotton recycling device and method
By installing a crushed bellows and rubber spraying pipes on the rock wool production line, the crushed cotton spraying treatment is performed on the crushed cotton return, which solves the problem of decreasing the strength of the finished rock wool product, and achieves efficient curing of cotton return and primary felt.
Patent Information
- Application Number
- CN202411531460.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-02-07
AI Technical Summary
During rock wool production, the direct addition of broken edges produced by cutting will cause the strength of the finished rock wool to decrease, because the cured adhesive is irreversible, affecting the curing continuity of the cotton felt.
A cotton recycling device is designed, including a crushed bellows and rubber spraying pipes. By re-spraying the crushed cotton, it enhances its curing effect with the primary felt.
Through glue spraying treatment, the curing effect of cotton recovery and primary felt is significantly enhanced, the problem of decreasing strength of rock wool products is solved, and efficient recycling of crushed cotton recovery is achieved.
Smart Images
Figure CN119390361A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of rock wool production, and in particular to a device and method for recycling rock wool. Background Art
[0002] Rock wool is a kind of material made of basalt, dolomite and other materials. It is melted at a high temperature of more than 1450℃, centrifuged into fibers by centrifuge, and sprayed with a certain amount of binder, dust-proof oil and water-repellent agent. It is collected by a cotton collector, spread by the pendulum method, and then solidified and cut to form rock wool products of different specifications and uses. When cutting, use a circular saw to cut the edge of the rock wool so that the edge of the rock wool product is neat, and then use a water jet to cut the rock wool into block structures of the required size.
[0003] In the process of cutting with a circular saw, it is inevitable that some rock wool products that cannot be sold or used will be produced. Usually, these rock wool products can be crushed into scraps for recycling, which can achieve waste utilization and control costs. However, the direct addition of scraps will lead to a decrease in the strength of the finished rock wool product, because these scraps are solidified rock wool, which is then combined with the primary felt (after centrifugal filaments are sprayed with a certain binder and collected on the mesh plate of the cotton collector to form a felt under the action of the centrifugal wind and negative pressure wind of the cotton collector) for curing. Because the main component of most current binders is thermosetting phenolic resin, it is irreversible after high-temperature curing. The addition of recycled cotton is equivalent to the primary felt wrapping the recycled cotton or inlaying it on the surface, which affects the continuity of the curing of the cotton felt, resulting in a decrease in the curing effect, and thus a decrease in the strength of the rock wool product. Summary of the invention
[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a device and method for recycling recycled cotton. A scrap adding pipe is arranged on the top of the scrap bellows, and a glue spraying pipe is arranged on the scrap bellows. By re-spraying glue on the scrap recycled cotton, the curing effect of the recycled cotton and the primary felt can be greatly enhanced.
[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:
[0006] In the first aspect, a recycled cotton recycling device comprises a scrap bellows and a glue spraying pipe, wherein the bottom end of the scrap bellows is connected to a cotton collector for spreading rock wool fibers on a mesh plate of the cotton collector, and at least two groups of scrap adding pipes are arranged at the top of the scrap bellows; the glue spraying pipe extends through the side wall of the scrap bellows to the interior of the scrap bellows and is provided with a plurality of atomizing nozzles for spraying glue on the scraps falling from the scrap adding pipe.
[0007] As a further implementation method, the broken edges are added with a vertical pipe arrangement.
[0008] As a further implementation method, the edge scrapping adding pipeline is arranged near the middle position of the top of the edge scrapping bellows.
[0009] As a further implementation, the atomizing nozzle includes a first atomizing nozzle directed toward the scrap adding pipe and a second atomizing nozzle directed toward the cotton collector screen.
[0010] As a further implementation, the first atomizing nozzle and the second atomizing nozzle are distributed along a straight line and staggered on the same glue spraying pipeline.
[0011] As a further implementation, at least two groups of glue spraying pipes are arranged in the edge scrapping bellows, and the heights of the glue spraying pipes are different.
[0012] As a further implementation method, the number of atomizing nozzles is gradually reduced on different groups of glue spraying pipes from high to low.
[0013] As a further implementation, a valve is provided on the glue spraying pipeline to adjust the flow rate.
[0014] As a further implementation method, the glue spraying pipeline is distributed in an annular direction in the edge scraping bellows, and the directions of the plurality of atomizing nozzles on the annular glue spraying pipeline are different.
[0015] In a second aspect, a working method of a recycled cotton recycling device according to any one of the above-mentioned steps comprises the following steps:
[0016] After the returned cotton is crushed, it forms scraps which enter the scrap bellows through the scrap adding pipe, and is sprayed with glue through the glue spraying pipe and the atomizing nozzle. The scraps after spraying are mixed with the primary felt under the action of high-pressure blowing from the scrap bellows.
[0017] The beneficial effects of the present invention are as follows:
[0018] 1. The present invention arranges a scrap adding pipe on the top of the scrap bellows, and arranges a glue spraying pipe on the scrap bellows. By re-spraying glue on the scrap recycled cotton, the curing effect of the recycled cotton and the primary felt can be greatly enhanced, which solves the problem that the main component of most current adhesives is thermosetting phenolic resin, which is irreversible after high-temperature curing. The addition of recycled cotton is equivalent to the primary felt wrapping the recycled cotton or embedding it on the surface, which affects the continuity of the curing of the cotton felt, resulting in a decrease in the curing effect, thereby causing a decrease in the strength of the rock wool product.
[0019] 2. The first atomizing nozzle and the second atomizing nozzle of the present invention are evenly distributed on the first glue spraying pipe, and are staggered on the first glue spraying pipe. The first atomizing nozzle and the second atomizing nozzle have different directions. By setting atomizing nozzles with different directions, it is convenient to spray glue on the broken edges in the bellows in all directions, thereby ensuring the subsequent rock wool curing effect.
[0020] 3. The scrap bellows, scrap adding pipe and glue spraying pipe of the present invention can be directly modified on the rock wool production line, so as to realize the recycling of scraps and returned cotton. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.
[0022] Figure 1 is a schematic structural diagram of a cotton recycling device in one or more embodiments of the present invention;
[0023] Figure 2 It is a schematic diagram of the structure of a cotton waste recycling device in one or more embodiments of the present invention.
[0024] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.
[0025] Among them: 1. Edge scrap adding pipeline, 2. First glue spraying pipeline, 3. Atomizing nozzle, 4. Edge scrap bellows, 5. Cotton collector, 6. Cotton collector screen, 7. Second glue spraying pipeline. DETAILED DESCRIPTION
[0026] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.
[0027] Embodiment 1
[0028] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 2 As shown, a recycled cotton recycling device includes a scrap bellows 4 and a glue spraying pipe. The bottom end of the scrap bellows 4 is connected to a cotton collector 5 for spreading rock wool fibers on the mesh plate of the cotton collector. At least two groups of scrap adding pipes are arranged on the top of the scrap bellows 4. The glue spraying pipe extends through the side wall of the scrap bellows to the inside of the scrap bellows 4 and is provided with a plurality of atomizing nozzles 3 for spraying glue on the scraps falling from the scrap adding pipe.
[0029] like Figure 1 and Figure 2As shown, two groups of scrap adding pipes 1 are arranged on the top of the scrap bellows, and the scrap adding pipes 1 are arranged vertically, and the scrap adding pipes 1 are arranged near the middle position of the top of the scrap bellows 4. In the process of cutting with a circular saw, it is inevitable that some rock wool products that cannot be sold and used will be produced. These rock wool products are crushed into scraps, and the scraps and recycled cotton enter the scrap bellows through the scrap adding pipe. Considering that the main component of the binder of most of the recycled cotton is thermosetting phenolic resin, which is irreversible after high-temperature curing, the addition of recycled cotton is equivalent to the primary felt wrapping the recycled cotton or embedding it on the surface, which affects the continuity of the curing of the cotton felt, resulting in a decrease in the curing effect, thereby resulting in a decrease in the strength of the rock wool product. A glue spraying pipe is arranged on the scrap bellows of this embodiment, which is used to spray glue on the scraps to enhance its bonding strength with the primary felt.
[0030] like Figure 1 As shown, the first glue spraying pipe 2 extends through the side wall of the scrap wind box 4 to the inside of the scrap wind box 4 and is provided with a plurality of atomizing nozzles, the atomizing nozzles including a first atomizing nozzle facing the scrap adding pipe 1 and a second atomizing nozzle facing the cotton collector screen 6. By providing atomizing nozzles in different directions, it is convenient to spray glue on the scraps in the wind box in all directions, thereby ensuring the subsequent rock wool curing effect.
[0031] like Figure 1 As shown, the first glue spraying pipe 2 is distributed along a straight line inside the edge scraping bellows 4, and the first atomizing nozzle and the second atomizing nozzle are evenly distributed on the first glue spraying pipe 2, and are staggered on the first glue spraying pipe 2. In this embodiment, five groups of atomizing nozzles are arranged on the first glue spraying pipe 2, including three groups of first atomizing nozzles and two groups of second atomizing nozzles.
[0032] In a preferred example, at least two groups of glue spraying pipes are arranged in the edge scrapping bellows, and the heights of the glue spraying pipes are different, such as Figure 2 As shown, two groups of glue spraying pipes are provided in the edge scrapping bellows 4, namely the first glue spraying pipe 2 and the second glue spraying pipe 7. The height of the first glue spraying pipe 2 is higher than that of the second glue spraying pipe 7. The first glue spraying pipe 2 is arranged close to the edge scrapping adding pipe 1, and the second glue spraying pipe 7 is arranged close to the cotton collector mesh plate 6.
[0033] The number of atomizing nozzles on different groups of glue spraying pipes from high to low gradually decreases. Specifically, five groups of atomizing nozzles are provided on the first glue spraying pipe 2, and three groups of atomizing nozzles are provided on the second glue spraying pipe 7. The direction of the atomizing nozzles can be specifically set according to needs to ensure all-round glue spraying on the scraps.
[0034] It can be understood that, in other examples, the glue spraying pipeline can be distributed in the annular direction in the edge scrapping bellows, and the directions of the plurality of atomizing nozzles on the annular glue spraying pipeline are different.
[0035] To further optimize the technical solution, a valve is installed on the glue spraying pipeline to adjust the flow rate, and the glue spraying speed can be adjusted according to the speed of adding scrap cotton return.
[0036] In this embodiment, the adhesive used in rock wool production can be used for the recycled cotton glue spraying, and the atomizing nozzle can be the same nozzle as the centrifuge glue spraying. The use of recycled cotton glue spraying technology can greatly enhance the curing effect of recycled cotton and primary felt. The scrap bellows, scrap adding pipeline and glue spraying pipeline of this embodiment can be directly modified on the rock wool production line, so as to realize the recycling of scrap recycled cotton.
[0037] Embodiment 2
[0038] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 2 As shown, a working method of a recycled cotton recycling device comprises the following steps:
[0039] After the returned cotton is crushed, the scraps are formed and enter the scrap bellows through the scrap adding pipe. The scraps are sprayed with glue through the glue spraying pipe and the atomizing nozzle. The scraps after spraying are then adsorbed on the primary felt by the negative pressure wind of the cotton collector and mixed with the primary felt. By spraying glue on the scraps of the returned cotton, the curing effect of the returned cotton and the primary felt can be greatly enhanced, thereby solving the problem that the direct addition of scraps will lead to a decrease in the strength of the finished rock wool product.
[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A recycled cotton recycling device, characterized in that: It includes a scrap edge bellows and a glue spraying pipe. The bottom end of the scrap edge bellows is connected to a cotton collector for spreading rock wool fibers on the mesh plate of the cotton collector. At least two groups of scrap edge adding pipes are arranged on the top of the scrap edge bellows. The glue spraying pipe extends through the side wall of the scrap edge bellows to the inside of the scrap edge bellows and is provided with a plurality of atomizing nozzles for spraying glue on the scrap edges falling from the scrap edge adding pipe.
2. A recycled cotton recycling device according to claim 1, characterized in that: The broken edges are added with vertical pipe settings.
3. A recycled cotton recycling device according to claim 2, characterized in that: The edge scrap adding pipeline is arranged near the middle position of the top of the edge scrap bellows.
4. The recycled cotton recycling device according to claim 1, characterized in that: The atomizing nozzle comprises a first atomizing nozzle directed toward the scrap adding pipeline and a second atomizing nozzle directed toward the cotton collector screen.
5. The recycled cotton recycling device according to claim 4, characterized in that: The first atomizing nozzle and the second atomizing nozzle are distributed along a straight line and staggered on the same glue spraying pipeline.
6. A recycled cotton recycling device according to claim 5, characterized in that: As shown, at least two groups of glue spraying pipes are arranged in the edge scrapping bellows, and the heights of the glue spraying pipes are different.
7. The recycled cotton recycling device according to claim 6, characterized in that: The number of atomizing nozzles on different groups of glue spraying pipes from high to low gradually decreases.
8. The recycled cotton recycling device according to claim 1, characterized in that: The glue spraying pipeline is provided with a valve to adjust the flow rate.
9. The recycled cotton recycling device according to claim 1, characterized in that: The glue spraying pipeline is distributed in the annular direction in the edge scraping bellows, and the directions of the plurality of atomizing nozzles on the annular glue spraying pipeline are different.
10. A working method of a recycled cotton recycling device according to any one of claims 1 to 9, characterized in that: The steps include: After the returned cotton is crushed, it forms scraps which enter the scrap bellows through the scrap adding pipe, and is sprayed with glue through the glue spraying pipe and the atomizing nozzle. The scraps after spraying are mixed with the primary felt under the action of high-pressure blowing from the scrap bellows.
Citation Information
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