Geotechnical non-woven filter cloth production equipment

Abstract

The utility model discloses production equipment for geotechnical non-woven filter cloth. The equipment comprises a cotton box device and a hot pressing device, the disordered air blowing plates are arranged at the top and the bottom of the cotton box device, disordered air blowing up and down oppositely is generated in the box body through the disordered air blowing plates at the top and the bottom, the disordered air acts on fibers in the box body, the fibers are distributed more evenly, the fibers are wound mutually through the physical effect of the disordered air, and therefore the fibers are more evenly distributed. The binding force between the fibers is enhanced; the transverse blowing device is arranged on the side portion of the cotton box device, the transverse blowing device blows wound fibers to the roller, then the roller gradually rolls the wound fibers to be discharged out of the cotton box device, primary fiber filter cloth with large thickness is formed, then the fiber filter cloth is subjected to hot pressing through the hot pressing device, the thickness of the filter cloth is reduced, and the strength of the filter cloth is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of geotechnical filter cloths, and in particular relates to a production device for geotechnical nonwoven filter cloths. Background Art

[0002] In the field of civil engineering, soft foundation (soft soil foundation) refers to soil layers with low bearing capacity, high compressibility, and low strength, such as silt and peat. When building on these types of soil, special measures are usually required to ensure structural stability and safety. Traditional soft soil foundation treatment methods include the use of plastic drain boards or sand wells. Drain board filter cloth is usually used when treating soft soil foundations. Traditional drain board filter cloth may contain non-degradable components, and long-term use will cause environmental pollution. Therefore, the development of new degradable non-woven filter cloths has become a research focus. These materials require the use of natural fibers (such as cotton, linen, sugarcane, etc.) as raw materials, combined with special manufacturing processes to ensure that the material has good strength and filtration performance, and can naturally degrade after the end of its use cycle. In summary, the development of a filter cloth that can naturally degrade after completing its function has become an urgent need. Utility Model Content

[0003] The utility model mainly aims to overcome the deficiencies of the prior art and provides a geotechnical nonwoven filter cloth production device. The filter cloth produced by the device can be used for drainage boards to improve soil conditions and has good mechanical properties and degradability.

[0004] The utility model is realized through the following technical solutions:

[0005] A geotechnical nonwoven filter cloth production device, comprising a cotton box device and a hot pressing device;

[0006] The cotton box device includes a box body, a feeding port is provided on the box body, a downward blowing device is provided on the top of the box body, an upward blowing device is provided on the bottom of the box body, a horizontal blowing device is provided on one side of the box body, and a roller is provided at the discharge port position on the opposite side of the horizontal blowing device of the box body;

[0007] The downward blowing device is provided with a top random blowing plate, and the upward blowing device is provided with a bottom random blowing plate; the top random blowing plate and the bottom random blowing plate have the same structure and are symmetrically arranged up and down, and their structure is as follows: comprising a plate body, a plurality of vertical blowing holes arranged in a lattice on the plate body, and a spiral guide vane is provided in each blowing hole, and the spiral guide vane includes two types of spiral guide vanes in a forward rotation direction and a reverse rotation direction;

[0008] The hot pressing device is arranged on one side of the discharge port of the cotton box device.

[0009] In the above technical solution, the downward blowing device includes a top air inlet cover and a top random blowing plate. The top air inlet cover is arranged above the top random blowing plate, and the two are connected. A first air inlet is arranged on the top of the top air inlet cover.

[0010] In the above technical solution, the upward blowing device includes a bottom air inlet cover and a bottom random blowing plate. The bottom air inlet cover is arranged below the bottom random blowing plate, and the two are connected. A second air inlet is arranged at the bottom of the bottom air inlet cover.

[0011] In the above technical solution, the blowing hole is polygonal in shape.

[0012] In the above technical solution, the blowing hole is circular in shape.

[0013] In the above technical solution, a winding device is provided behind the hot pressing device for winding the filter cloth after hot pressing.

[0014] In the above technical solution, a conveyor belt is provided between the cotton box device and the hot pressing device.

[0015] The advantages and beneficial effects of the utility model are:

[0016] The utility model sets symmetrically arranged random blowing plates at the top and bottom of the cotton box device, and a plurality of vertical blowing holes are arranged in a dot matrix on the random blowing plates, and a spiral guide plate is set in each blowing hole. These spiral guide plates include two types of spiral guide plates with positive rotation and reverse rotation. Through the above-mentioned blowing structure, the top random blowing plate and the bottom random blowing plate can generate random wind blowing up and down in the box body. The random wind acts on the fibers in the box body, making the fibers more evenly distributed, and the fibers are entangled with each other through the physical action of the random wind force, forming interlacing and entanglement, strengthening the bonding force between the fibers, improving the durability and stability of the filter cloth, and maintaining its good air permeability and water permeability. In addition, the filter cloth made by the utility model uses natural fibers as the main raw material, has good degradability, and can gradually decompose after the project is completed, reducing the impact on the environment.

[0017] The utility model also provides a transverse blowing device on the side of the cotton box device for blowing air laterally to the fibers. On the one hand, it can produce a synergistic effect with the top random blowing plate and the bottom random blowing plate to further promote the entanglement of the fibers. On the other hand, the transverse blowing device can blow the entangled fibers toward the roller for discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the geotechnical nonwoven filter cloth production equipment of the utility model.

[0019] Figure 2It is a structural diagram of a random blowing plate in a cotton box device.

[0020] Figure 3 It is another structural schematic diagram of the chaotic blowing plate in the cotton box device.

[0021] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with specific embodiments.

[0023] See attached Figure 1 , a geotechnical non-woven filter cloth production device, including a cotton box device 1 and a hot pressing device 2.

[0024] The cotton box device 1 includes a box body, on which a feed port 11 is provided, through which fiber raw materials are added to the box body; a downward blowing device 12 is provided on the top of the box body, an upward blowing device 13 is provided on the bottom of the box body, a horizontal blowing device 14 is provided on one side of the box body, and a pair of rollers 15 are provided at the discharge port position on the opposite side of the horizontal blowing device of the box body.

[0025] The downward blowing device 12 includes a top air inlet cover 121 and a top random blowing plate 122. The top air inlet cover 121 is arranged above the top random blowing plate 122, and the two are connected. A first air inlet 123 is arranged on the top of the top air inlet cover 121. Air flow is blown into the top air inlet cover 121 through the first air inlet 123, and then the air flow passes through the top random blowing plate 122 and blows downward into the body of the cotton box.

[0026] The upward blowing device 13 includes a bottom air inlet cover 131 and a bottom random blowing plate 132. The bottom air inlet cover 131 is arranged below the bottom random blowing plate 132, and the two are connected. A second air inlet 133 is provided at the bottom of the bottom air inlet cover 131. Air flow is blown into the bottom air inlet cover 131 through the second air inlet 133, and then the air flow passes through the bottom random blowing plate 132 and blows upward into the body of the cotton box.

[0027] The top random blowing plate 122 and the bottom random blowing plate 132 have the same structure and are arranged symmetrically up and down. Figure 2 and attached Figure 3 Introduce its structure in detail.

[0028] The top random blowing plate 122 and the bottom random blowing plate 132 have the following structures: a plate body 40 is provided with a plurality of vertical blowing holes 41 arranged in a dot matrix on the plate body 40, and the blowing holes 41 can be polygonal in shape (see Figure 2 ) or circular structure (see attached Figure 3 ); A spiral guide vane is provided in each blowing hole 41, and the spiral guide vane includes two types: a forward-rotating spiral guide vane 42 and a reverse-rotating spiral guide vane 43. The two types of spiral guide vanes can be randomly arranged in each blowing hole 41, or regularly spaced in each blowing hole 41. Through the above-mentioned blowing structure, the top random blowing plate 122 and the bottom random blowing plate 132 can generate random wind blowing upward and downward in the box body. The random wind acts on the fibers in the box body, making the fibers more evenly distributed. The fibers are entangled with each other through the physical action of the random wind force, forming interlacing and entanglement, thereby strengthening the bonding force between the fibers, thereby helping to form a filter cloth with sufficient strength and stability.

[0029] The transverse blowing device 14 is used to blow air laterally on the fibers. On the one hand, it can produce a synergistic effect with the top random blowing plate 122 and the bottom random blowing plate 132 to further promote the entanglement of the fibers. On the other hand, the transverse blowing device 14 can blow the entangled fibers toward the roller roller 15, and then the roller roller 15 gradually rolls the entangled fibers out of the cotton box device 1 to form a preliminary fiber filter cloth 0 with a larger thickness, and then passes through the hot pressing device 2 for hot pressing to reduce the thickness of the filter cloth and further improve the strength of the filter cloth.

[0030] Furthermore, a winding device 3 is provided behind the hot pressing device 2 for winding the filter cloth after hot pressing; and a conveyor belt 5 is provided between the cotton box device 1 and the hot pressing device 2.

[0031] The production method of degradable geotextile filter cloth using the above equipment is as follows:

[0032] Step 1: Put fiber raw materials into the cotton box device 1. The fiber raw materials include hot-melt fibers and natural fibers. The natural fibers can be a mixture of any one or more of cotton fibers, hemp fibers, palm fibers or sugarcane fibers.

[0033] Step 2, start the cotton box device 1, and generate random wind blowing up and down in the box through the top random blowing plate 122 and the bottom random blowing plate 132. The random wind acts on the fibers in the box, making the fibers more evenly distributed, and the fibers are entangled with each other through the physical action of the random wind force; the fibers are blown laterally by the transverse blowing device 14, which on the one hand synergizes with the top random blowing plate 122 and the bottom random blowing plate 132 to promote the entanglement of the fibers, and on the other hand, the transverse blowing device 14 blows the entangled fibers toward the roller roller 15, and the roller roller 15 gradually rolls the entangled fibers out of the cotton box device 1, forming a preliminary thicker randomly interwoven fiber filter cloth 0.

[0034] Step 3: hot-pressing the fiber filter cloth discharged from the cotton box device 1 by the hot-pressing device 2 to reduce the thickness of the filter cloth and further improve the strength of the filter cloth.

[0035] For ease of explanation, spatial relative terms such as "upper", "lower", "left", and "right" are used in the embodiments to illustrate the relationship between one element or feature shown in the figures and another element or feature. It should be understood that, in addition to the orientation shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0036] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be made by other technical personnel in this field without expending creative labor falls within the scope of protection of the present invention.

Claims

1. A geotechnical nonwoven filter cloth production equipment, characterized by: Including cotton box device and hot pressing device; The cotton box device includes a box body, a feeding port is provided on the box body, a downward blowing device is provided on the top of the box body, an upward blowing device is provided on the bottom of the box body, a horizontal blowing device is provided on one side of the box body, and a roller is provided at the discharge port position on the opposite side of the horizontal blowing device of the box body; The downward blowing device is provided with a top random blowing plate, and the upward blowing device is provided with a bottom random blowing plate; the top random blowing plate and the bottom random blowing plate have the same structure and are symmetrically arranged up and down, and their structure is as follows: comprising a plate body, a plurality of vertical blowing holes arranged in a lattice on the plate body, and a spiral guide vane is provided in each blowing hole, and the spiral guide vane includes two types of spiral guide vanes in a forward rotation direction and a reverse rotation direction; The hot pressing device is arranged on one side of the discharge port of the cotton box device.

2. The geotechnical nonwoven filter cloth production equipment according to claim 1, characterized in that: The downward blowing device includes a top air inlet cover and a top random blowing plate. The top air inlet cover is arranged above the top random blowing plate, and the two are connected. A first air inlet is arranged on the top of the top air inlet cover.

3. The geotechnical nonwoven filter cloth production equipment according to claim 1, characterized in that: The upward blowing device includes a bottom air inlet cover and a bottom random blowing plate. The bottom air inlet cover is arranged below the bottom random blowing plate, and the two are connected. A second air inlet is arranged at the bottom of the bottom air inlet cover.

4. The geotechnical nonwoven filter cloth production equipment according to claim 1, characterized in that: The blowing hole is in a polygonal shape.

5. The geotechnical nonwoven filter cloth production equipment according to claim 1, characterized in that: The blowing hole is circular in shape.

6. The geotechnical nonwoven filter cloth production equipment according to claim 1, characterized in that: A winding device is provided behind the hot pressing device for winding the filter cloth after hot pressing.

7. The geotechnical nonwoven filter cloth production equipment according to claim 1, characterized in that: A conveyor belt is provided between the cotton box device and the hot pressing device.

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