Refractory castable raw material crushing and dust collecting device

Abstract

This utility model relates to the field of crushing and dust collection technology. It provides a crushing and dust collection device for refractory castable raw materials. A first dust extraction pipe in a U-shape is installed near the upper port of the crusher box. Several first air extraction holes connecting to the interior of the crusher box are provided on the front, back, left, and right sides of the pipe wall inside the first dust extraction pipe. A second dust extraction pipe in a U-shape is installed on the front, back, left, and right sides of the outer top of the stacker box. Several second air extraction holes connecting to the interior of the stacker box are provided on the front, back, left, and right sides of the pipe wall inside the second dust extraction pipe. An air extraction and dust collection assembly is located on the right side of the stacker box. The first and second dust extraction pipes are connected to the air extraction and dust collection assembly via air guide pipes. This device, through its reasonable structural layout and multi-point uniform air extraction design, forms a highly efficient and sealed dust collection system, minimizing the escape and diffusion of dust during crushing and stacking.

Description

Technical Field

[0001] This utility model relates to the field of crushing and dust collection technology, specifically to a crushing and dust collection device for refractory castable raw materials. Background Technology

[0002] Refractory materials are widely used in metallurgy, ceramics, chemical and other industries. Their production often requires the use of refractory castable raw materials for molding and repair. To ensure production efficiency and product quality, the refractory castable raw materials usually need to be crushed to obtain fine materials with uniform particle size suitable for subsequent processes. In practice, the crushing process often generates a large amount of dust. This dust not only affects the cleanliness of the working environment and the health of operators, but may also cause safety accidents such as fires or explosions.

[0003] Currently, some refractory crushing equipment on the market is equipped with simple dust removal systems, but these mostly rely on single exhaust ducts or localized dust collection devices, resulting in low dust extraction efficiency, easy dust leakage, and a wide range of pollution. These systems cannot achieve multi-point, all-round dust control in the crushing area, leading to a large amount of dust escaping from the work site, seriously affecting the hygiene and safety of the production environment. At the same time, traditional dust removal devices are often complex in structure, inconvenient to maintain, and have limited filtration effects, making it difficult to meet the requirements of efficient and environmentally friendly production.

[0004] Furthermore, existing dust collection systems for refractory material crushing typically lack effective sealing designs and multi-stage filtration measures. Dust is prone to leakage or secondary pollution during collection and filtration, making thorough dust control impossible. This not only increases the difficulty of environmental remediation but also restricts the sustainability and safety of production.

[0005] Therefore, this solution proposes a refractory castable raw material crushing and dust collection device to solve the above problems. Utility Model Content

[0006] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a crushing and dust collection device for refractory castable raw materials.

[0007] To achieve the aforementioned objective, the technical solution of this utility model is implemented as follows: A refractory castable raw material crushing and dust collection device includes a crushing chamber and a stacking chamber distributed at its bottom and connected to each other. Two crushing rollers are installed inside the crushing chamber. A first dust extraction pipe in the shape of a U-shape is installed near the upper port of the crushing chamber. Several first air extraction holes connecting to the inside of the crushing chamber are provided on the front, back, left, and right sides of the pipe wall inside the first dust extraction pipe. A second dust extraction pipe in the shape of a U-shape is installed on the front, back, left, and right sides of the top outer side of the stacking chamber. Several second air extraction holes connecting to the inside of the stacking chamber are provided on the front, back, left, and right sides of the pipe wall inside the second dust extraction pipe. An air extraction and dust collection assembly is provided on the right side of the outside of the stacking chamber. The first dust extraction pipe and the second dust extraction pipe are connected to the air extraction and dust collection assembly through a set air guide pipe.

[0008] Preferably, the dust collection and extraction assembly includes a dust collection cylinder, a filter assembly, and a vacuum pump. The left side of the dust collection cylinder is connected to the air guide pipe, the filter assembly is installed at the center of the inside of the dust collection cylinder, and the vacuum pump is installed at the bottom outside the dust collection cylinder and is connected to the inside of the filter assembly.

[0009] Preferably, the filter assembly includes a first filter cartridge, a second filter cartridge, a third filter cartridge, and a fourth filter cartridge, which are arranged sequentially from the outside to the inside.

[0010] Preferably, a top cover is screwed onto the top of the dust collection cylinder.

[0011] Preferably, the first dust extraction pipe is formed inside the upper port of the pulverizer box, forming a U-shaped air extraction channel.

[0012] Preferably, the second dust extraction pipe is formed in a U-shaped extraction channel at the top of the inside of the stacker box.

[0013] Preferably, the vertical distance between the air extraction zone formed by the first dust extraction pipe and the crushing roller is set to 70 cm.

[0014] The beneficial effects of this utility model are reflected in:

[0015] This refractory castable raw material crushing and dust collection device features a compact and efficient first and second dust extraction pipe in the crusher box and stacker box, respectively, achieving multi-point and uniform dust extraction from the two key areas of crushing and stacking. The first dust extraction pipe adopts a U-shaped structure design, significantly increasing the extraction area. Combined with evenly distributed first extraction holes, it can effectively capture dust emitted during the crushing process and prevent dust from spreading outward. The second dust extraction pipe also adopts a U-shaped closed structure with multiple second extraction holes to ensure that dust generated during material stacking and conveying does not accumulate in the stacking area, effectively avoiding dust pollution.

[0016] The dust collection system's extraction and dust collection components use a well-sealed dust collection cylinder and multi-stage filtration components. Through four stages of filter cartridges, dust is filtered from coarse to fine, which greatly improves filtration efficiency and air cleanliness, prevents secondary emission of fine dust, and ensures a clean working environment and the health and safety of operators.

[0017] In summary, this device, through its rational structural layout and multi-point uniform air extraction design, forms a highly efficient and sealed dust collection system. This system minimizes the escape and diffusion of dust during crushing and stockpiling, effectively controlling dust pollution and improving the environmental quality and operational safety of the production site. Simultaneously, the multi-stage filtration and sealed dust collection design ensures effective separation and centralized collection of dust, reducing the harm of dust to equipment and personnel, extending equipment lifespan, and saving on subsequent cleaning and maintenance workload. This dust collection device not only meets the environmental protection requirements of the refractory castable crushing process but also provides a reliable technical reference and application demonstration for dust control in similar industries, possessing broad promotional value and application prospects. Attached Figure Description

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the dust collection and extraction component of this utility model;

[0022] Figure 4 This is a schematic diagram of a half-section of the filter assembly of this utility model;

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Crusher housing; 2. Stacker housing; 3. Crusher roller; 4. First dust extraction pipe; 5. Second dust extraction pipe; 6. Air guide pipe; 7. Dust collection assembly;

[0025] 41. First air extraction port;

[0026] 51. Second air extraction port;

[0027] 71. Dust collection bin; 72. Filter assembly; 73. Exhaust fan; 74. Top cover;

[0028] 721. First filter cartridge; 722. Second filter cartridge; 723. Third filter cartridge; 724. Fourth filter cartridge. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0030] It should be noted that if the utility model embodiment involves directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

[0032] Please refer to the instruction manual appendix. Figures 1-4 This utility model provides a crushing and dust collection device for refractory castable raw materials, including a crushing chamber 1 and a stacking chamber 2 distributed at its bottom and connected to it. Two crushing rollers 3 are installed inside the crushing chamber 1 to effectively crush the refractory castable raw materials.

[0033] A first dust extraction pipe 4 in the shape of a U-shape is provided near the upper port of the crusher box 1. This pipe is made of steel pipe with good sealing performance. The U-shaped structure design can increase the air extraction area inside the pipe and improve the dust extraction efficiency. Several first air extraction holes 41 are evenly arranged on the pipe walls on the front, back, left and right sides inside the first dust extraction pipe 4. These air extraction holes 41 are connected to the inside of the crusher box 1. This design can effectively extract the dust that is about to escape from the feed port of the crusher box 1.

[0034] The stacker housing 2 is located at the bottom of the crusher housing 1 and is connected to the internal space of the crusher housing 1. The stacker housing 2 is mainly used to collect and temporarily store the crushed materials. A second dust extraction pipe 5 in a U-shape is also installed on the outer front, back, left, and right walls of the top of the stacker housing 2. This pipe has a similar structure to the first dust extraction pipe 4, forming a closed U-shaped air extraction channel. Several second air extraction holes 51 are evenly arranged on the inner walls of the second dust extraction pipe 5 on the front, back, left, and right sides to extract dust generated inside the stacker housing 2 during material accumulation and conveying. This multi-point uniform air extraction design effectively avoids dust accumulation in the stacking area and reduces dust pollution.

[0035] The vertical distance between the air extraction zone formed by the first dust extraction pipe 4 and the crushing roller 3 is about 70 cm. This distance has been optimized to ensure that the dust can be extracted in time and to prevent the crushed stone fragments ejected by the crushing roller 3 from reaching the operating space of the air extraction zone.

[0036] An air extraction and dust collection assembly 7 is installed on the right side of the outside of the crusher box 1 and the stacker box 2. This assembly is connected to the first dust extraction pipe 4 and the second dust extraction pipe 5 through the air guide pipe 6 to form a complete dust collection system.

[0037] The dust collection and extraction assembly 7 includes a dust collection cylinder 71, a filter assembly 72, and a vacuum pump 73. The dust collection cylinder 71 adopts a well-sealed cylindrical structure, effectively withstanding internal negative pressure and preventing dust leakage. The filter assembly 72 is installed at the center of the dust collection cylinder 71 and employs a multi-stage filtration design, consisting of a first filter cylinder 721, a second filter cylinder 722, a third filter cylinder 723, and a fourth filter cylinder 724 arranged sequentially from the outside in. Each filter cylinder uses a combination of filter media of different specifications and materials. The first filter cylinder 721 primarily filters larger dust particles, the second and third filter cylinders 722 and 723 are responsible for filtering medium-sized particles, and the fourth filter cylinder 724 uses high-efficiency filter media to capture fine dust, ensuring that the exhaust air meets cleanliness standards.

[0038] The exhaust fan 73 is installed at the bottom of the dust collection cylinder 71 and can continuously and stably provide negative pressure to drive the airflow circulation of the entire dust collection system. The exhaust fan 73 is internally connected to the filter assembly 72 to ensure that the dust is effectively separated and collected after multi-stage filtration, avoiding secondary dust pollution.

[0039] The dust collection cylinder 71 is screwed to the top with a top cover 74. The top cover not only ensures the system's airtightness but also facilitates daily maintenance and filter replacement. The top cover features a quick-locking structure, making operation simple, and the sealing ring design ensures no dust leakage.

[0040] The workflow is as follows:

[0041] When the refractory castable raw material is fed into the crusher box 1, the two crushing rollers 3 begin to crush the raw material. During the crushing process, dust is generated and rises upwards. At this time, the first dust extraction pipe 4, located at the upper port of the crusher box 1, draws away the dust that is about to escape from the feed inlet through the first suction holes 41 evenly distributed on its U-shaped structure, under the negative pressure provided by the vacuum pump 73. The crushed material falls into the bottom stacker box 2 for collection and temporary storage. The dust generated during the material stacking and conveying process is extracted by the second dust extraction pipe 5 at the top of the stacker box 2 through the second suction hole 51. The dust-laden airflows drawn from two locations converge into the dust collection cylinder 71 of the extraction and dust collection assembly 7 through the air guide pipe 6. Under the continuous drive of the exhaust fan 73, the dust-laden airflow passes through the first filter cylinder 721, the second filter cylinder 722, the third filter cylinder 723, and the fourth filter cylinder 724 in the filter assembly 72 for multi-stage filtration. Larger dust particles are trapped by the outer filter cylinder, while fine dust is captured by the inner high-efficiency filter material. Finally, clean air is discharged from the exhaust fan 73, while the collected dust remains in the dust collection cylinder 71. The dust is cleaned by periodically opening the top cover 74, thus achieving efficient dust collection throughout the entire crushing operation.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A refractory castable raw material crushing and dust collection device, comprising a crushing chamber (1) and a stacking chamber (2) distributed at its bottom and communicating with it, wherein two crushing rollers (3) are installed inside the crushing chamber (1), characterized in that, The crusher box (1) is equipped with a first dust extraction pipe (4) in the shape of a U-shape near the upper port. The first dust extraction pipe (4) has several first air extraction holes (41) that connect to the inside of the crusher box (1) on the front, back, left and right sides of the pipe wall. The stacker box (2) is equipped with a second dust extraction pipe (5) in the shape of a U-shape on the front, back, left and right sides of the top outer side of the box wall. The second dust extraction pipe (5) has several second air extraction holes (51) that connect to the inside of the stacker box (2) on the front, back, left and right sides of the pipe wall. The stacker box (2) is equipped with an air extraction and dust collection assembly (7) on the right side of the outside. The first dust extraction pipe (4) and the second dust extraction pipe (5) are connected to the air extraction and dust collection assembly (7) through a set air guide pipe (6).

2. The refractory castable raw material crushing and dust collection device according to claim 1, characterized in that, The dust collection and extraction assembly (7) includes a dust collection cylinder (71), a filter assembly (72), and a vacuum pump (73). The left side of the dust collection cylinder (71) is connected to the air guide pipe (6). The filter assembly (72) is installed at the center of the dust collection cylinder (71). The vacuum pump (73) is installed at the bottom of the dust collection cylinder (71) and is connected to the inside of the filter assembly (72).

3. The refractory castable raw material crushing and dust collection device according to claim 2, characterized in that, The filter assembly (72) includes a first filter cartridge (721), a second filter cartridge (722), a third filter cartridge (723), and a fourth filter cartridge (724), which are arranged sequentially from the outside to the inside.

4. The refractory castable raw material crushing and dust collection device according to claim 2, characterized in that, The top of the dust collection cylinder (71) is screwed with a top cover (74).

5. The refractory castable raw material crushing and dust collection device according to claim 1, characterized in that, The first dust extraction pipe (4) forms a U-shaped air extraction channel on the inner side of the upper port of the crusher box (1).

6. The refractory castable raw material crushing and dust collection device according to claim 1, characterized in that, The second dust extraction pipe (5) is formed at the top of the inside of the stacker box (2) to form a U-shaped air extraction channel.

7. The refractory castable raw material crushing and dust collection device according to claim 1, characterized in that, The vertical distance between the air extraction area formed by the first dust extraction pipe (4) and the crushing roller (3) is set to 70 cm.

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