Winnowing equipment for inorganic fiberboards

Abstract

The utility model discloses winnowing equipment for an inorganic fiber board. The winnowing equipment comprises a fiber feeding pipeline, a closed tower chamber, a grating plate, an air supplementing opening, a grading winnowing wheel, a flow dividing guide plate, a fiber outlet and a slag outlet. The fiber feeding pipeline is connected with the bottom of the tower chamber, the grating plate is located on the lower portion of the tower chamber to disturb airflow for preliminary classification, the air supplementing openings are formed in the two sides of the tower chamber to adjust air volume so that fibers can be turned over, the classification winnowing wheel conducts fine classification above the middle of the tower chamber, the flow dividing guide plate separates qualified fibers, the fiber outlet outputs the qualified fibers, and the slag outlet discharges unqualified fiber agglomerates and slag agglomerates. By means of the double-grading winnowing mode and the closed tower chamber design, efficient sorting is achieved, fiber loss is reduced, the product quality and yield are controlled, and the effects of energy conservation, emission reduction and stable equipment operation are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of production of inorganic fiberboards, in particular to air separation equipment for inorganic fiberboards. Background Art

[0002] As an important component of building materials, the sorting process in the production of inorganic fiberboard is crucial to the quality and output of the final product. Currently, traditional inorganic fiber sorting equipment mainly relies on air separation technology, which uses the centrifugal force generated by high-speed rotation and the collision between the fiber and the cylinder wall to separate the fiber and gas. However, this traditional air separation equipment has obvious shortcomings:

[0003] 1. Poor separation effect:

[0004] Traditional air separation equipment has low separation efficiency, which can easily cause a large amount of dispersed inorganic fibers to be carried out of the air outlet along with the airflow, failing to achieve effective separation. This not only reduces the fiber recovery rate but also affects the production efficiency of downstream processes.

[0005] 2. Product quality and output are difficult to control:

[0006] Due to the imprecise sorting process, traditional equipment struggles to effectively control product quality and yield. Unqualified fibers and slag can easily mix with qualified fibers, leading to lower final product quality, unstable yield rates, and difficulty achieving the desired level of control over the production process.

[0007] 3. Serious fiber loss:

[0008] In traditional air separation equipment, fibers often escape with the air flow, resulting in serious fiber loss. This not only wastes valuable raw materials but also increases production costs.

[0009] 4. High energy consumption and poor environmental protection:

[0010] In order to achieve the best sorting effect, traditional equipment usually requires higher energy consumption, which leads to higher production costs, while increasing environmental pollution and energy consumption, which does not meet the requirements of modern industrial energy conservation and emission reduction.

[0011] To address these issues, the industry typically adopts technical improvements such as improving airflow paths and optimizing equipment structures. However, these improvements often lead to new challenges in practical application, such as complex equipment structures, poor operational stability, and high maintenance costs. These improvements still fail to fundamentally address the issues of low sorting efficiency, difficult quality control, and high energy consumption.

[0012] Therefore, how to improve the sorting efficiency of inorganic fibers, control product quality and output, reduce fiber loss, and achieve energy conservation and emission reduction has become the technical problem to be solved by the present utility model. Utility Model Content

[0013] The technical problem solved by the present invention is to provide an air separation device for inorganic fiberboard in response to the defects existing in the above-mentioned prior art, so as to solve the problems of low sorting efficiency, difficult to control product quality and output, serious fiber loss and high energy consumption raised in the above-mentioned background technology.

[0014] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0015] An inorganic fiberboard air separation device comprises a fiber feeding pipe, a closed tower chamber, a grid plate, an air supply port, a grading air separation wheel, a diversion guide plate, a fiber outlet and a slag outlet;

[0016] The fiber feeding pipe is connected to the bottom inlet of the closed tower chamber and is used to guide the defibrated inorganic fibers into the closed tower chamber;

[0017] The grid plate is arranged at the lower part of the closed tower chamber, between the fiber feeding pipe and the interior of the tower chamber, and is used to disrupt the airflow to perform preliminary classification of the inorganic fibers;

[0018] The air supply ports are arranged on both sides of the closed tower chamber, and the inorganic fibers are fully tumbled and dispersed in the closed tower chamber by adjusting the air volume of the air supply ports;

[0019] The classifying and winnowing wheel is arranged above the middle of the closed tower chamber, and the fibers are finely classified by the classifying and winnowing wheel;

[0020] The diversion guide plate is located above the classifying air separation wheel and connected to the upper end of the closed tower chamber to separate qualified inorganic fibers;

[0021] The fiber outlet is provided at the upper outlet of the diversion guide plate and is used to output qualified inorganic fibers;

[0022] The slag outlet is arranged at the bottom of the closed tower chamber and is used to discharge unqualified fiber clumps and slag clumps.

[0023] As a further solution of the present invention, the grid plates are arranged intermittently, and the end cross-section of the grid plates is in an inverted V shape.

[0024] As a further solution of the present invention, the air supply port controls the air supply volume through an adjustable valve, thereby adjusting the air flow state in the closed tower chamber and the tumbling degree of the inorganic fibers.

[0025] As a further solution of the present invention, the grading and winnowing wheel includes a motor with adjustable speed for achieving different speeds of the grading and winnowing wheel.

[0026] As a further solution of the present invention, the enclosed tower chamber is a cylindrical structure with smooth inner walls to reduce the adhesion of fibers in the tower chamber and ensure smooth dispersion and separation of the fibers.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. The end section of the grid plate is inverted V-shaped. This design forces the airflow to change direction when passing through the grid plate, forming multiple small vortices. These vortices can effectively disrupt the airflow, causing the inorganic fibers to disperse quickly after entering the closed tower chamber.

[0029] 2. Air supply inlets are located on both sides of the enclosed tower chamber, with adjustable valves controlling the air volume. Adjusting the air volume at the inlets ensures that the inorganic fibers are fully agitated and dispersed within the tower chamber. This uniform air supply ensures even fiber distribution throughout the chamber, thereby improving sorting accuracy and efficiency. Furthermore, the design of the inlets prevents fibers from being directly carried out of the tower chamber by strong airflow, ensuring that the fibers remain within the tower chamber for sufficient time to be fully dispersed and classified.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0032] Figure 1 It is a structural diagram of the present utility model.

[0033] Figure 2 for Figure 1 Schematic diagram of the structure from another perspective.

[0034] Figure 3 for Figure 2 A-A cross-sectional diagram.

[0035] Figure 4 for Figure 2 Schematic diagram of the structure from another perspective.

[0036] Figure 5 for Figure 4 BB cross-sectional view of .

[0037] Figure 6This is a structural diagram of the grading winnowing wheel of the utility model.

[0038] Figure 7 This is a structural diagram of the grid plate of the utility model.

[0039] The reference numerals and names in the figures are as follows:

[0040] Fiber feeding pipeline 1, closed tower chamber 2, grid plate 3, air supply port 4, grading air separation wheel 5, diversion guide plate 6, fiber outlet 7, slag outlet 8 and valve 9. DETAILED DESCRIPTION

[0041] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] See also Figure 1 —7. In an embodiment of the present invention, an inorganic fiberboard air separation device includes a fiber feeding duct 1, a closed tower chamber 2, a grid plate 3, an air supply port 4, a grading air separation wheel 5, a diversion guide plate 6, a fiber outlet 7, and a slag outlet 8. The fiber feeding duct 1 is connected to the bottom inlet of the closed tower chamber 2 and is used to guide the defibrated inorganic fibers into the closed tower chamber 2.

[0043] The grid plates 3 are positioned at the bottom of the enclosed tower chamber 2, between the fiber feed duct 1 and the interior of the tower chamber. The grid plates 3 are intermittently arranged, with an inverted V-shaped cross-section at their ends. This design disturbs the airflow through the grid plates, forming irregular vortices that disrupt the flow. The formation of these vortices rapidly disperses the inorganic fibers upon entering the tower chamber, preventing fiber agglomeration and improving the efficiency of the initial classification process. The grid plates' apertures and spacing are carefully designed to ensure proper airflow disturbance and uniform fiber distribution.

[0044] When the airflow carrying inorganic fibers passes through the fiber feeding pipe 1 and enters the closed tower chamber 2, it first encounters the inverted V-shaped grid plate 3. Due to the intermittent arrangement and inverted V-shaped structure of the grid plate, the airflow is forced to change direction when passing through the grid plate.

[0045] Specifically, when the airflow encounters a V-shaped convex part, it will be split into two and flow around the convex part. When it encounters a V-shaped concave part, the airflow will accelerate to fill the low-pressure area. This irregular airflow path causes airflow disturbance and dispersion.

[0046] Due to the repeated arrangement of the inverted V-shaped structures, the airflow is repeatedly disturbed when it passes through multiple grille plates, and these disturbances form multiple small vortices in the airflow.

[0047] The formation of vortex makes the airflow unstable and chaotic. This chaotic airflow state helps to break up the agglomeration of inorganic fibers and make the fibers initially dispersed in the tower chamber.

[0048] In this disturbed airflow environment, the lighter inorganic fibers will be affected by the greater airflow and rise rapidly, while the heavier fiber clusters and slag clusters cannot follow the rapid changes in the airflow due to their greater inertia and settle to the bottom.

[0049] This preliminary classification process ensures that the inorganic fibers entering the middle area of ​​the tower chamber are roughly dispersed, providing a good foundation for subsequent fine classification.

[0050] Air supply ports 4 are located on either side of the enclosed tower chamber 2, with the air supply volume controlled by adjustable valves 9. The position and number of the air supply ports are precisely calculated to ensure uniform air supply within the tower chamber. By adjusting valves 9, the air volume at the air supply ports can be precisely controlled, allowing the inorganic fibers to fully swirl and disperse within the tower chamber. The design of the air supply ports 4 not only prevents the fibers from being directly carried out of the tower chamber by the airflow, but also ensures uniform distribution of the fibers within the tower chamber, improving the accuracy and efficiency of sorting.

[0051] The grading winnowing wheel 5 is positioned above the center of the enclosed tower chamber 2. Driven by a motor, its speed can be precisely controlled according to specific production requirements. The grading winnowing wheel design includes multiple grading blades, whose angles and number are optimized to ensure effective grading at varying speeds. By adjusting the speed of the grading winnowing wheel, inorganic fibers of varying particle sizes can be finely classified, ensuring that qualified fibers proceed to the next process while unqualified fibers are eliminated.

[0052] The multiple grading blades in the grading air separation wheel 5 are arranged at a certain angle and spacing. When the air separation wheel rotates, the inorganic fibers are thrown toward the grading blades under the combined action of airflow and centrifugal force, and an upward guiding structure is formed through the cooperation of multiple diversion guide plates 6, so that the fibers can be quickly separated by air separation at a high speed.

[0053] The diverter guide plate 6 is located above the grading and winnowing wheel 5 and connected to the upper end of the sealed tower chamber 2. The diverter guide plate 6 is designed to include multiple diverter channels, whose dimensions and angles are precisely calculated to ensure that qualified inorganic fibers can pass through the diverter guide plate and enter the fiber outlet 7. The diverter guide plate further separates and collects qualified fibers that have already been processed by the grading and winnowing wheel, preventing unqualified fibers from entering the next process.

[0054] The fiber outlet 7, located at the upper exit of the diverter guide plate 6, is used to discharge qualified inorganic fibers. Its design ensures that the fibers can be smoothly discharged from the diverter guide plate and enter subsequent production processes. Its size and position have been optimized to ensure consistent output of qualified fibers under various production conditions. A slag outlet 8, located at the bottom of the enclosed tower chamber 2, is used to discharge unqualified fiber and slag clumps.

[0055] A slag outlet 8 is located at the bottom of the sealed tower chamber 2 to remove unqualified fiber and slag clumps. The slag outlet is designed to include an automatic slag discharge device that can automatically remove unqualified fiber and slag clumps deposited at the bottom of the tower chamber periodically or as needed, ensuring cleanliness and separation efficiency within the tower chamber.

[0056] The air supply inlet 4 controls the air volume via an adjustable valve 9, thereby regulating the airflow within the sealed chamber 2 and the degree of inorganic fiber tumbling. The classifying and winnowing wheel 5 includes a motor drive for precise control of its rotational speed to achieve varying classification effects. The sealed chamber 2 is cylindrical in shape, with smooth interior walls to minimize fiber adhesion and ensure smooth dispersion and separation.

[0057] Example 1:

[0058] In the production of inorganic fiberboard, the sorting process is crucial to the quality and yield of the final product. Traditional sorting equipment is no longer able to meet the demands of modern industry due to issues such as poor separation, difficulty controlling product quality and yield, severe fiber loss, and high energy consumption. To address these issues, this utility model provides a highly efficient inorganic fiberboard air separation device and demonstrates its implementation through specific application scenarios.

[0059] In actual production, defibrated inorganic fibers enter a sealed tower chamber 2 through a fiber delivery duct 1. The design of the sealed tower chamber 2 helps control the internal airflow and reduce external interference. First, the fibers pass through a grid plate 3 located at the bottom of the tower chamber, which effectively disrupts the airflow and allows for initial classification of the inorganic fibers. This process ensures initial dispersion of the fibers, prevents fiber agglomeration, and improves the efficiency of the initial sorting.

[0060] To further enhance the sorting efficiency, air inlets 4 are located on both sides of the tower chamber. By adjusting the air volume at these inlets, the inorganic fibers can be fully stirred and dispersed within the tower chamber. This design not only prevents fibers from being carried out of the air outlet by the airflow but also ensures uniform fiber distribution within the tower chamber, thereby improving sorting accuracy and efficiency.

[0061] Next, the fibers enter the grading and winnowing wheel 5 for a second fine classification. This wheel is driven by a motor, and its speed can be precisely controlled according to specific production requirements. This allows qualified inorganic fibers to be accurately separated and passed to the diversion guide plate 6 located above the grading and winnowing wheel. They then pass through the fiber outlet 7 to the next process. Unqualified fiber clumps and slag clumps settle to the bottom and are discharged through the slag outlet 8, or undergo a second air separation process as needed.

[0062] Through the above-mentioned design, the inorganic fiberboard air separation equipment of the present invention has achieved significant technological progress. First, the double-graded air separation method greatly improves the sorting efficiency and ensures the full separation of inorganic fibers. Secondly, the application of the graded air separation wheel 5 makes the product quality and output more controllable, and the sorting parameters can be flexibly adjusted according to different process requirements. The design of the closed tower chamber 2 and the air supply port 4 effectively reduces the loss of fibers and improves the utilization rate of materials. At the same time, due to the improvement of sorting efficiency and the reduction of fiber loss, the equipment achieves the effect of energy saving and emission reduction, and reduces production costs.

[0063] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0064] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. An inorganic fiberboard air separation device, comprising a fiber feeding duct, a closed tower chamber, a grid plate, an air supply port, a grading air separation wheel, a diversion guide plate, a fiber outlet, and a slag outlet, characterized in that: The fiber feeding pipe is connected to the bottom inlet of the closed tower chamber and is used to guide the defibrated inorganic fibers into the closed tower chamber; The grid plate is arranged at the lower part of the closed tower chamber, between the fiber feeding pipe and the interior of the tower chamber, and is used to disrupt the airflow to perform preliminary classification of the inorganic fibers; The air supply ports are arranged on both sides of the closed tower chamber, and the inorganic fibers are fully tumbled and dispersed in the closed tower chamber by adjusting the air volume of the air supply ports; The classifying and winnowing wheel is arranged above the middle of the closed tower chamber, and the fibers are finely classified by the classifying and winnowing wheel; The diversion guide plate is located above the classifying air separation wheel and connected to the upper end of the closed tower chamber to separate qualified inorganic fibers; The fiber outlet is provided at the upper outlet of the diversion guide plate and is used to output qualified inorganic fibers; The slag outlet is arranged at the bottom of the closed tower chamber and is used to discharge unqualified fiber clumps and slag clumps.

2. The air separation equipment for inorganic fiberboard according to claim 1, characterized in that: The grid plates are arranged intermittently, and the end cross-section of the grid plates is in an inverted V shape.

3. The air separation equipment for inorganic fiberboard according to claim 1, characterized in that: The air supply port controls the air supply volume through an adjustable valve, thereby adjusting the air flow state in the closed tower chamber and the tumbling degree of the inorganic fibers.

4. The air separation equipment for inorganic fiberboard according to claim 1, characterized in that: The grading and winnowing wheel includes a motor with adjustable speed for achieving different speeds of the grading and winnowing wheel.

5. The air separation equipment for inorganic fiberboard according to claim 1, characterized in that: The closed tower chamber is a cylindrical structure with smooth inner wall surface to reduce the adhesion of fibers in the tower chamber and ensure smooth dispersion and separation of the fibers.

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