Non-woven fabric processing raw material grinding and crushing device

Abstract

The utility model relates to the technical field of crushing device, concretely to a kind of non-woven fabric processing raw material grinding and crushing device, including crushing cylinder, still including grinding part, the grinding part is located in the upper portion inside crushing cylinder;The air-blowing part is located in crushing cylinder, and it is located below grinding part, for the dust shell of grinding is blown out of crushing cylinder;The coarse crushing part is located in crushing cylinder, and it is located below air-blowing part;The fine crushing part is located in crushing cylinder, and it is located below coarse crushing part;The utility model is ground by setting grinding part to non-woven fabric raw material and carry out crushing treatment;Air-blowing part discharges dust;Coarse crushing part carries out preliminary crushing to the non-woven fabric raw material of shell removal, fine crushing part carries out depth crushing to the non-woven fabric raw material of coarse crushing part discharge. Grinding part, air-blowing part, coarse crushing part and fine crushing part cooperate with each other, so that non-woven fabric raw material crushing is more thorough.

Description

Technical Field

[0001] This utility model relates to the field of crushing device technology, and in particular to a crushing device for grinding raw materials for non-woven fabric processing. Background Technology

[0002] The quality of nonwoven fabrics, especially polyester fiber nonwoven fabrics, largely depends on the pretreatment level of raw materials. The raw materials for these nonwoven fabrics are typically polyester chips or recycled waste plastic bottle flakes. Before being used in production, these raw materials must be crushed to obtain uniformly sized and regularly shaped particles, thereby ensuring the stability of subsequent melting, spinning, and other processes, as well as the performance of the final product.

[0003] However, most existing raw material crushing equipment employs a single crushing mechanism, such as shearing and impacting materials through high-speed rotating blades. This method has several shortcomings when processing materials with a certain degree of toughness and hardness, such as polyester chips: First, simple shearing is insufficient to break down the internal structure of the material, easily producing irregularly shaped fragments rather than uniform particles, affecting the material's flowability and melting uniformity; second, a large amount of fine dust is generated during the crushing process. If this dust mixes with qualified particles, it not only affects subsequent processing but may also pollute the production environment; finally, simple shearing and crushing makes it difficult to achieve a gradual processing from coarse to fine, either over-crushing leading to increased energy consumption or under-crushing resulting in a wide particle size distribution, which is difficult to meet the stringent requirements of high-quality nonwoven fabric production. Therefore, the market needs a crushing device capable of multi-level, refined processing of nonwoven fabric raw materials. Utility Model Content

[0004] The main objective of this invention is to provide a grinding and pulverizing device for nonwoven fabric processing raw materials to solve the problems raised in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a grinding and pulverizing device for nonwoven fabric processing raw materials is provided, comprising a pulverizing cylinder, and further comprising: A grinding section is located inside the upper part of the crushing cylinder; The blower section is located inside the crushing cylinder and below the grinding section, and is used to blow the dust shell that has been ground out of the crushing cylinder. The coarse crushing section is located inside the crushing cylinder and below the blower section. The coarse crushing section crushes the nonwoven fabric raw material according to the first crushing standard. The fine grinding section is located inside the grinding cylinder and below the coarse grinding section. The fine grinding section grinds the nonwoven fabric raw material according to a second grinding standard, the precision of which is higher than that of the first grinding standard.

[0006] Furthermore, the blower section includes a hollow frustum-shaped blower hood, which has several through ventilation holes, and an upward-blowing fan is provided below the blower hood.

[0007] Furthermore, the grinding section includes a grinding column, which is rotatably mounted on the top of the blower hood. A grinding cone is fixedly mounted on the top of the grinding column. A grinding cylinder is provided around the outer ring of the grinding column. A sloping top is fixedly mounted on the top of the grinding cylinder. The bottom of the grinding cylinder is fixedly connected to the blower hood through several pillars. A discharge port is formed between the bottom of the grinding cylinder and the top of the blower hood.

[0008] Furthermore, a grinding gap is formed between the outer wall of the grinding column and the inner wall of the grinding cylinder.

[0009] Furthermore, grinding bodies are fixedly provided on both the outer wall of the grinding column and the inner wall of the grinding cylinder.

[0010] Furthermore, the grinding body is hemispherical, and a number of grinding protrusions are fixedly provided on the outer wall of the grinding body. All grinding protrusions are located within the grinding gap, and a gap is left between the grinding protrusions on the outer wall of the grinding column and the grinding protrusions on the inner wall of the grinding cylinder for the nonwoven fabric raw material to pass through.

[0011] Furthermore, the fine grinding section includes a fine grinding cylinder, which is fixedly connected to the bottom of the grinding cylinder, and a fine rotating cylinder is provided inside the fine grinding cylinder, which is rotatably connected to the bottom of the grinding cylinder.

[0012] Furthermore, a precision gap is provided between the precision grinding cylinder and the precision rotating cylinder, and a number of precision protrusions are fixedly provided on the inner wall of the precision grinding cylinder and the outer wall of the precision rotating cylinder, and the precision protrusions are all located within the precision gap.

[0013] Furthermore, the coarse crushing section includes a coarse crushing cylinder fixedly disposed at the top of the fine crushing cylinder, and a coarse rotating cylinder is provided inside the coarse crushing cylinder. The coarse rotating cylinder is fixedly disposed at the top of the fine rotating cylinder, and both the coarse rotating cylinder and the fine rotating cylinder are provided with several through ventilation channels.

[0014] Furthermore, a coarse gap is provided between the coarse crushing cylinder and the coarse rotating cylinder, and a number of coarse protruding teeth are fixedly provided on the inner wall of the coarse crushing cylinder and the outer wall of the coarse rotating cylinder, and the coarse protruding teeth are all located within the coarse gap.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention innovatively integrates four functional zones: grinding, dust removal, coarse grinding, and fine grinding. The material first passes through the grinding section, where its surface and edges are effectively ground, disrupting its original physical structure and creating favorable conditions for subsequent grinding. Then, through coarse and fine grinding, the particle size is gradually reduced, ultimately yielding a finished product with uniform particles and regular shapes. This progressive processing method, compared to simple shearing and grinding, produces higher quality raw materials.

[0016] By installing a blower section below the grinding section, the upward airflow can promptly blow away the fine dust generated during the grinding process to the slag outlet before the material enters the main crushing zone. This design effectively avoids the mixing of dust with qualified materials, ensuring not only the purity of the final product raw material but also improving the internal working environment of the equipment and preventing dust from affecting subsequent crushing efficiency.

[0017] The device adopts a vertically integrated layout, with materials flowing smoothly through each processing zone sequentially by gravity. The grinding media in the milling section and the toothed design in the coarse and fine grinding sections increase the contact area and number of interactions between the material and the working parts, thereby improving grinding efficiency. Meanwhile, the rotating drums for coarse and fine grinding are driven by the same motor, resulting in a compact structure, reliable transmission, and ensuring the stability of the equipment's operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a partially enlarged schematic diagram of the present invention; Figure 4 This is a schematic diagram of the grinding body structure of this utility model.

[0019] Figure label: 1. Crushing cylinder; 11. Slag outlet; 12. Material outlet; 13. Air inlet; 2. Feeding port; 21. Plug; 3. Blower hood; 31. Ventilation hole; 32. Fan; 4. Coarse crushing cylinder; 41. Coarse rotating cylinder; 42. Coarse protruding teeth; 43. Coarse gap; 5. Fine crushing cylinder; 51. Fine rotating cylinder; 52. Fine protruding teeth; 53. Fine gap; 54. First motor; 55. Ventilation duct; 6. Grinding column; 61. Grinding cone top; 7. Grinding cylinder; 71. Sloping top; 72. Discharge port; 73. Support column; 8. Grinding body; 81. Grinding spikes; 9. Second motor; 10. Grinding gap. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Reference Figure 1 and Figure 2 This embodiment provides a grinding and pulverizing device for non-woven fabric processing raw materials. The main body of the device is a grinding cylinder 1. At the top of the grinding cylinder 1, there is a feeding port 2 for feeding in the non-woven fabric raw materials to be processed. The feeding port 2 is equipped with a removable plug 21 to seal the inlet. The inner wall of the top of the grinding cylinder 1 is designed to slope towards the slag outlet 11, and the slag outlet 11 is positioned higher than other areas at the top. This design facilitates the collection and discharge of fine dust generated in subsequent processes. At the bottom of the grinding cylinder 1, there is a discharge port 12 for collecting the finally pulverized and qualified raw materials. The bottom is also designed with a slope towards the discharge port 12 to facilitate the smooth discharge of materials. In addition, several air inlets 13 are also provided at the bottom of the grinding cylinder 1.

[0022] The device is equipped with a grinding section, a blowing section, a coarse grinding section, and a fine grinding section arranged from top to bottom, forming a complete and efficient material handling chain.

[0023] First, let's introduce the grinding section and the blowing section located at the top of the device. For example... Figure 3 As shown, the blower section mainly consists of a hollow frustum-shaped blower hood 3, with an upward-blowing fan 32 installed below it. Several through-hole ventilation holes 31 are evenly distributed on the wall of the blower hood 3. The diameter of these holes is designed to be smaller than the raw material particles to prevent material from falling and to ensure smooth airflow. The grinding section is located on top of the blower hood 3, including a fixed grinding cylinder 7 and a rotatable grinding column 6. The grinding cylinder 7 is fixedly connected to the blower hood 3 by several support pillars 73, and its top is provided with a sloping top 71. The grinding column 6 is rotatably mounted on the center top of the blower hood 3, and its top is fixed with a grinding cone top 61. A second motor 9 is connected to the bottom of the grinding column 6 to drive its rotation.

[0024] An annular grinding gap 10 is formed between the outer wall of the grinding column 6 and the inner wall of the grinding cylinder 7, which is the area where the raw materials undergo preliminary processing. To achieve effective grinding, multiple grinding bodies 8 are fixedly installed on both the outer wall of the grinding column 6 and the inner wall of the grinding cylinder 7. For example... Figure 4As shown, each grinding body 8 is hemispherical, and its surface is fixed with several grinding spikes 81 extending in different directions. When the grinding column 6 rotates, the grinding spikes 81 on it and the stationary grinding spikes 81 on the grinding cylinder 7 form an alternating motion, repeatedly scraping, squeezing, and grinding the raw material entering the grinding gap 10. A certain gap is left between the spikes to ensure that the material can pass through, mainly playing the role of grinding rather than chopping. The ground material will fall from the discharge port 72 formed between the bottom of the grinding cylinder 7 and the top of the blower hood 3.

[0025] Next, we will describe the coarse grinding section and the fine grinding section located at the bottom of the device. The fine grinding section includes a fine grinding cylinder 5 fixedly connected to the bottom of the grinding cylinder 1, and a fine rotating cylinder 51 that can rotate within it. The bottom of the fine rotating cylinder 51 is rotatably connected to the grinding cylinder 1 and is driven by a first motor 54. A fine gap 53 is formed between the inner wall of the fine grinding cylinder 5 and the outer wall of the fine rotating cylinder 51. Both walls are fixed with a number of fine protrusions 52. These protrusions are spaced close together and are used for deep grinding of the material.

[0026] The coarse crushing section is located above the fine crushing section and includes a coarse crushing cylinder 4 fixed to the top of the fine crushing cylinder 5 and a coarse rotating cylinder 41 fixed to the top of the fine rotating cylinder 51. Therefore, the coarse rotating cylinder 41 rotates together with the fine rotating cylinder 51. A coarse gap 43 is formed between the coarse crushing cylinder 4 and the coarse rotating cylinder 41. Both have coarse protrusions 42 on their walls, but the spacing between these protrusions is relatively large, which is used to perform preliminary crushing on the material falling from the blower hood 3. The bottom end of the coarse gap 43 is connected to the top end of the fine gap 53, ensuring that the material can smoothly enter the fine crushing zone from the coarse crushing zone. To cooperate with the airflow circulation of the blower, the interior of both the coarse rotating cylinder 41 and the fine rotating cylinder 51 is provided with several through ventilation channels 55, the lower end of which is aligned with the air inlet 13 at the bottom of the crushing cylinder 1, providing an air intake channel for the blower 32.

[0027] The working process of this device is as follows: First, the first motor 54, the second motor 9, and the blower 32 are started. The operator pulls out the plug 21 and feeds nonwoven raw materials such as polyester chips into the feed port 2. Under the action of gravity, the raw materials slide into the grinding gap 10 along the top of the grinding cone 61 and the top of the ramp 71. Driven by the rotating grinding column 6, the grinding spikes 81 on the grinding body 8 perform preliminary grinding on the raw materials.

[0028] The ground material falls from the discharge port 72 and spreads on the inclined surface of the blower hood 3. At this time, the upward airflow generated by the blower 32 passes through the ventilation hole 31, blowing up the light dust particles in the material and causing them to collect along the inner wall of the top of the crushing cylinder 1 to the slag outlet 11 and be discharged. The heavier particles, due to gravity, roll down the inclined surface of the blower hood 3 and accurately enter the coarse gap 43.

[0029] In the coarse gap 43, the rotating coarse drum 41 interacts with the coarse protrusions 42 on the fixed coarse crushing drum 4, performing preliminary shearing and impact crushing on the material. After preliminary crushing, the material with smaller particle size continues to fall into the fine gap 53. Here, the fine protrusions 52 with smaller spacing further finely crush the material until it reaches the preset particle size requirement. Finally, the fine and uniform raw material particles that have passed the crushing are discharged from the discharge port 12 at the bottom of the device for collection and subsequent use.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A grinding and pulverizing device for nonwoven fabric processing raw materials, comprising a pulverizing cylinder (1), characterized in that, Also includes: The grinding section is located inside the upper part of the crushing cylinder (1); The blower section is located inside the crushing cylinder (1) and below the grinding section, and is used to blow the dust removed from the crushing cylinder (1). The coarse crushing section is located inside the crushing cylinder (1) and below the blower section. The coarse crushing section crushes the nonwoven fabric raw material according to the first crushing standard. The fine grinding section is located inside the grinding cylinder (1) and below the coarse grinding section. The fine grinding section grinds the nonwoven fabric raw material according to the second grinding standard. The precision of the second grinding standard is higher than that of the first grinding standard.

2. The nonwoven fabric processing raw material grinding and pulverizing device according to claim 1, characterized in that, The blower section includes a hollow frustum-shaped blower hood (3), which has several through ventilation holes (31) and an upward-blowing fan (32) below it.

3. The nonwoven fabric processing raw material grinding and pulverizing device according to claim 2, characterized in that, The grinding section includes a grinding column (6), which is rotatably mounted on the top of the blower hood (3). A grinding cone top (61) is fixedly provided on the top of the grinding column (6). A grinding cylinder (7) is provided on the outer ring of the grinding column (6). A sloping top (71) is fixedly provided on the top of the grinding cylinder (7). The bottom of the grinding cylinder (7) is fixedly connected to the blower hood (3) through several support columns (73). A discharge port (72) is formed between the bottom of the grinding cylinder (7) and the top of the blower hood (3).

4. The nonwoven fabric processing raw material grinding and pulverizing device according to claim 3, characterized in that, A grinding gap (10) is formed between the outer wall of the grinding column (6) and the inner wall of the grinding cylinder (7).

5. The nonwoven fabric processing raw material grinding and pulverizing device according to claim 4, characterized in that, The outer wall of the grinding column (6) and the inner wall of the grinding cylinder (7) are both fixedly provided with grinding bodies (8).

6. The nonwoven fabric processing raw material grinding and pulverizing device according to claim 5, characterized in that, The grinding body (8) is hemispherical. A number of grinding protrusions (81) are fixed on the outer wall of the grinding body (8). The grinding protrusions (81) are all located in the grinding gap (10). A gap is left between the grinding protrusions (81) on the outer wall of the grinding column (6) and the grinding protrusions (81) on the inner wall of the grinding cylinder (7) for the nonwoven raw materials to pass through.

7. The nonwoven fabric processing raw material grinding and pulverizing device according to claim 1, characterized in that, The fine grinding section includes a fine grinding cylinder (5), which is fixedly connected to the bottom of the grinding cylinder (1). The fine grinding cylinder (5) is provided with a fine rotating cylinder (51) inside, which is rotatably connected to the bottom of the grinding cylinder (1).

8. The nonwoven fabric processing raw material grinding and pulverizing device according to claim 7, characterized in that, A fine gap (53) is provided between the fine grinding cylinder (5) and the fine rotating cylinder (51). A number of fine protrusions (52) are fixedly provided on the inner wall of the fine grinding cylinder (5) and the outer wall of the fine rotating cylinder (51). The fine protrusions (52) are all located in the fine gap (53).

9. The nonwoven fabric processing raw material grinding and pulverizing device according to claim 7, characterized in that, The coarse crushing section includes a coarse crushing cylinder (4) fixedly disposed on the top of the fine crushing cylinder (5). The coarse crushing cylinder (4) is provided with a coarse rotating cylinder (41) inside. The coarse rotating cylinder (41) is fixedly disposed on the top of the fine rotating cylinder (51). Both the coarse rotating cylinder (41) and the fine rotating cylinder (51) are provided with several through ventilation channels (55).

10. The nonwoven fabric processing raw material grinding and pulverizing device according to claim 9, characterized in that, A coarse gap (43) is provided between the coarse crushing cylinder (4) and the coarse rotating cylinder (41). A number of coarse protruding teeth (42) are fixedly provided on the inner wall of the coarse crushing cylinder (4) and the outer wall of the coarse rotating cylinder (41). The coarse protruding teeth (42) are all located in the coarse gap (43).

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