Chemical fiber raw material screening device

Abstract

The chemical fiber raw material screening device comprises a screening shell, a filter screen and a loosening assembly, the screening shell is in an inverted circular truncated cone shape, the filter screen is detachably connected to the position of a filling opening of the screening shell, the loosening assembly is movably connected to the position of a discharging opening of the screening shell, and a material conveying belt matched with the screening shell is arranged at the lower end of the screening shell; most of large-size impurities can be filtered out through the arranged filter screen, meanwhile, iron wires can be directly filtered out through adsorption by means of the filter magnet arranged on the filter screen, and the situation that a discharge port of the screening shell is blocked when a large number of raw materials are poured is avoided through the arrangement of the loosening assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of screening, in particular to a screening device for chemical fiber raw materials. Background Art

[0002] Chemical fiber is a commonly used synthetic fiber, and China is the largest chemical fiber processing country in the world. Countless chemical fibers are produced in China every year. Different from general fibers, such as cotton, silk, or linen, which are fibers that can be degraded in nature, the degradation of chemical fibers by nature is relatively long. Therefore, it is necessary to recycle and reuse chemical fibers to protect the environment and save resource waste.

[0003] In the existing recycling and use of chemical fibers, waste chemical fibers are directly melted and then granulated to obtain granular chemical fibers, which are then used according to actual needs. However, there are the following problems:

[0004] Impurities, such as metal wires or paper shell debris for packaging, are inevitably present in waste chemical fibers. During cutting, it is extremely easy to cause blockage of the extrusion wire mesh. Once blockage occurs, the particle size will be uneven, which is not conducive to subsequent use.

[0005] In view of this, there is an urgent need for a screening device for chemical fiber raw materials to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a screening device for chemical fiber raw materials to solve the above problems.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme: A screening device for chemical fiber raw materials, comprising:

[0008] A screening outer shell, a filter screen, and a loosening component. The screening outer shell is in the shape of an inverted frustum. The filter screen is detachably connected to the filler port position of the screening outer shell. The loosening component is movably connected to the discharge port position of the screening outer shell, and a material conveyor belt matching with the lower end of the screening outer shell is provided.

[0009] Preferably, the filter screen includes a fixed outer ring, a plurality of skeleton rods, and a plurality of filtering magnets. The plurality of skeleton rods are fixedly connected to the fixed outer ring and intersect with each other. The plurality of filtering magnets are detachably connected to the skeleton rods.

[0010] Preferably, the loosening component includes a conical loosening cylinder and at least one group of connecting rods. One end of the connecting rod is fixedly connected to the inner wall of the screening outer shell, and the other end is fixedly connected to the conical loosening cylinder.

[0011] Preferably, the loosening assembly includes a conical cylinder shell, a cylinder, a connecting plate and at least one set of connecting rods. The connecting plate is fixedly connected to the concave side wall of the conical cylinder shell. One end of the connecting rod is fixedly connected to the inner wall of the screening housing, and the other end is fixedly connected to the cylinder. The end of the piston rod of the cylinder away from the cylinder is fixedly connected to the middle position of the connecting plate.

[0012] Preferably, the loosening assembly includes a conical cylinder, an air pipe, an annular collection bin and at least one connecting rod. The conical cylinder is provided with a hollow cavity, and a plurality of air holes are provided on the side wall of the conical cylinder. One end of the air pipe passes through the bottom wall of the conical cylinder and is detachably connected thereto. One end of the connecting rod is fixedly connected to the inner wall of the screening housing, and the other end is fixedly connected to the side wall of the air pipe. The annular collection bin is movably connected to the lower side wall of the conical cylinder, and an annular collection port is provided at one end of the annular collection bin in contact with the conical cylinder.

[0013] Preferably, the air holes are strip-shaped, and the vertical height of one end of the air hole located inside the conical cylinder is higher than that of one end of the air hole located outside the conical cylinder.

[0014] Preferably, a blocking brush fixedly connected thereto is provided on the annular collection port.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Most impurities with larger sizes can be filtered out through the provided filter screen. At the same time, the filter magnet provided on the filter screen can directly filter out iron wires by adsorption. The setting of the loosening assembly avoids the situation that the discharge port of the screening housing is blocked when a large amount of raw materials pour. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of a chemical fiber raw material screening device;

[0018] Figure 2 is a schematic diagram of the structure of the filter screen in the present utility model;

[0019] Figure 3 is a schematic cross-sectional structure diagram of the loosening assembly in the second embodiment of the present utility model;

[0020] Figure 4 is a schematic cross-sectional structure diagram of the loosening assembly in the third embodiment of the present utility model;

[0021] Figure 5 is Figure 4 an enlarged schematic diagram of the structure at A in

[0022] In the figure: 1. Screening outer shell; 2. Filter screen; 20. Fixed outer ring; 21. Skeleton rod; 22. Filter magnet; 3. Loosening component; 30. Conical loosening cylinder; 31. Connecting rod; 32. Conical cylinder shell; 33. Air cylinder; 34. Connecting plate; 35. Conical cylinder; 350. Hollow cavity; 351. Air hole; 36. Air pipe; 37. Annular collection bin; 370. Annular collection port; 4. Material conveyor belt. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Embodiment 1

[0025] Please refer to the attached Figure 1-2 , a chemical fiber raw material screening device, including:

[0026] A screening outer shell 1, a filter screen 2 and a loosening component 3. The screening outer shell 1 is in the shape of an inverted frustum. The filter screen 2 is detachably connected to the filler port position of the screening outer shell 1. The loosening component 3 is movably connected to the discharge port position of the screening outer shell 1, and a material conveyor belt 4 is provided at the lower end of the screening outer shell 1 and is matched with it;

[0027] After lifting the material bag above the screening outer shell 1 by a crane and during the dumping process, a large amount of raw materials will first fall into the screening outer shell 1 in a loose state under the blockage of the filter screen 2. At the same time, in order to avoid the situation that a large amount of raw materials fall into the screening outer shell 1 and cause the discharge port of the screening outer shell 1 to be blocked instantly due to its own impact force, a loosening component 3 is provided at the screening outer shell 1 to form a buffering effect on the raw materials.

[0028] Specifically, the filter screen 2 includes a fixed outer ring 20, a plurality of skeleton rods 21 and a plurality of filter magnets 22. The plurality of skeleton rods 21 are fixedly connected to the fixed outer ring 20 and the plurality of skeleton rods 21 intersect each other. The plurality of filter magnets 22 are detachably connected to the skeleton rods 21; considering the large amount of raw materials when tilted, in order to avoid damage to the filter screen, the wire mesh structure composed of iron wires is abandoned, and the filter screen 2 is formed by the skeleton rods 21 and the fixed outer ring 20. At the same time, by directly detachably connecting the filter magnets 22 to the skeleton rods 21, the purpose of adsorbing and filtering iron wires or other iron impurities in the raw materials is achieved.

[0029] Specifically, the loosening component 3 includes a conical loosening cylinder 30 and at least one set of connecting rods 31. One end of the connecting rod 31 is fixedly connected to the inner wall of the screening housing 1, and the other end is fixedly connected to the conical loosening cylinder 30. Considering the use cost, the loosening component 3 adopts a simple combination of the conical loosening cylinder 30 and the connecting rods 31. Through the conical structure of the conical loosening cylinder 30, the raw materials become looser after contacting the conical loosening cylinder 30 and fall from different positions of the conical loosening cylinder 30, thereby achieving the purpose of loosening by reducing the impact force of the raw materials.

[0030] Embodiment 2

[0031] Please refer to the appendix Figure 3

[0032] Specifically, the loosening component 3 includes a conical cylinder shell 32, a cylinder 33, a connecting plate 34 and at least one set of connecting rods 31. The connecting plate 34 is fixedly connected to the concave side wall of the conical cylinder shell 32. One end of the connecting rod 31 is fixedly connected to the inner wall of the screening housing 1, and the other end is fixedly connected to the cylinder 33. The end of the piston rod of the cylinder 33 away from the cylinder 33 is fixedly connected to the middle position of the connecting plate 34;

[0033] The loosening component 3 adopts a combination of the conical cylinder shell 32 and the cylinder 33. The height of the conical cylinder shell 32 can be directly changed through the cylinder 33, and the distance between the conical cylinder shell 32 and the side wall of the screening housing 1 can be indirectly changed, that is, the falling speed of the materials is changed, and the amount of materials on the material conveyor belt 4 is indirectly controlled.

[0034] Embodiment 3

[0035] Please refer to the appendix Figure 4-5

[0036] Specifically, the loosening component 3 includes a conical cylinder 35, an air pipe 36, an annular collection bin 37 and at least one connecting rod 31. The conical cylinder 35 is provided with a hollow cavity 350, and a plurality of air holes 351 are provided on the side wall of the conical cylinder 35. One end of the air pipe 36 passes through the bottom wall of the conical cylinder 35 and is detachably connected thereto. One end of the connecting rod 31 is fixedly connected to the inner wall of the screening housing 1, and the other end is fixedly connected to the side wall of the air pipe 36. The annular collection bin 37 is movably connected to the lower side wall of the conical cylinder 35, and an annular collection port 370 is provided at the end where the annular collection bin 37 contacts the conical cylinder 35;

[0037] The position of the air pipe 36 is fixed through the connecting rod 31, and by the detachable connection method between the air pipe 36 and the conical cylinder 35, the purpose of inflating the air into the hollow cavity 350 through the air pipe 36 is achieved. At the same time, the position of the conical cylinder 35 is indirectly fixed by the air pipe 36. During the continuous inflation process of the air pipe 36, the gas will be discharged outward through the air holes 351, and the gas discharged from the air holes 351 will blow the chemical fiber raw materials, making them fall along the side wall of the screening housing 1. During this process, the metal impurities with larger mass will not be blown, and such impurities will continue to fall along the conical cylinder 35 to the position of the annular collection port 370 and fall into the annular collection bin 37 through the annular collection port 370.

[0038] Specifically, the air holes 351 are strip-shaped, and the vertical height of one end of the air holes 351 inside the conical cylinder 35 is higher than that of one end of the air holes 351 outside the conical cylinder 35. In order to avoid the problem that the chemical fiber raw materials enter the hollow cavity 350 through the air holes 351 during the falling process, the above situation is avoided by adopting the method that the air inlet and outlet of the air holes 351 are at different heights.

[0039] Specifically, a barrier brush fixedly connected thereto is provided on the annular collection port 370. Considering that there may be a situation where some chemical fiber raw materials are not blown away when passing through the position of the air holes 351, a barrier brush is provided at the annular collection port 370 to block such chemical fiber raw materials. It should be noted that a group of air holes 351 need to be provided at the position where the annular collection port 370 is located, otherwise, the chemical fiber raw materials staying at the annular collection port 370 will accumulate and finally enter the annular collection bin 37.

[0040] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A chemical fiber raw material screening device, characterized in that Including: A screening housing (1), a filter net (2), and a loosening component (3). The screening housing (1) is in the shape of an inverted frustum. The filter net (2) is detachably connected to the filler opening position of the screening housing (1). The loosening component (3) is movably connected to the discharge opening position of the screening housing (1), and a material conveyor belt (4) matching with the lower end of the screening housing (1) is provided.

2. A chemical fiber raw material screening device according to claim 1, characterized in that: The filter net (2) includes a fixed outer ring (20), a plurality of skeleton rods (21), and a plurality of filtering magnets (22). The plurality of skeleton rods (21) are fixedly connected to the fixed outer ring (20) and the plurality of skeleton rods (21) intersect with each other. The plurality of filtering magnets (22) are detachably connected to the skeleton rods (21).

3. A chemical fiber raw material screening device according to claim 1, characterized in that: The loosening component (3) includes a conical loosening cylinder (30) and at least one group of connecting rods (31). One end of the connecting rod (31) is fixedly connected to the inner wall of the screening housing (1), and the other end is fixedly connected to the conical loosening cylinder (30).

4. A chemical fiber raw material screening device according to claim 1, characterized in that: The loosening component (3) includes a conical cylinder shell (32), a cylinder (33), a connecting plate (34), and at least one group of connecting rods (31). The connecting plate (34) is fixedly connected to the concave side wall of the conical cylinder shell (32). One end of the connecting rod (31) is fixedly connected to the inner wall of the screening housing (1), and the other end is fixedly connected to the cylinder (33). The piston rod of the cylinder (33) is fixedly connected to the middle position of the connecting plate (34) at the end far away from the cylinder (33).

5. A chemical fiber raw material screening device according to claim 1, characterized in that: The loosening component (3) includes a conical cylinder (35), a trachea (36), an annular collecting bin (37), and at least one connecting rod (31). The conical cylinder (35) is provided with a hollow cavity (350), and a plurality of air holes (351) are provided on the side wall of the conical cylinder (35). One end of the trachea (36) passes through the bottom wall of the conical cylinder (35) and is detachably connected thereto. One end of the connecting rod (31) is fixedly connected to the inner wall of the screening housing (1), and the other end is fixedly connected to the side wall of the trachea (36). The annular collecting bin (37) is movably connected to the lower side wall of the conical cylinder (35), and an annular collecting port (370) is provided at one end of the annular collecting bin (37) in contact with the conical cylinder (35).

6. A chemical fiber raw material screening device according to claim 5, characterized in that: The air holes (351) are in strip shape, and the vertical height of one end of the air holes (351) inside the conical cylinder (35) is higher than that of one end of the air holes (351) outside the conical cylinder (35).

7. A chemical fiber raw material screening device according to claim 5, characterized in that: A blocking brush is fixedly connected to the annular collecting port (370).

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