Special high-uniformity multilayer composite sintered felt for filtration

Abstract

The utility model relates to the related technical field of sintered felts, in particular to a special high-uniformity multilayer composite sintered felt for filtration, which comprises a felt body, and a filter element is arranged in the center of the inside of the felt body. According to the high-uniformity multi-layer composite sintered felt special for filtering, through the arrangement of the filter element, when fluid enters the felt body, the fluid firstly makes contact with the filter element, the framework provides a stable frame to ensure that deformation is avoided during filtering, the first non-woven fabric intercepts large-particle impurities, small particles and the fluid to continue to permeate, and then the fluid passes through the activated carbon fiber composite material; the second non-woven fabric serves as an outer layer for protection, activated carbon fiber particles are prevented from falling off, fine particles are intercepted again, and the multi-layer structure has a synergistic effect, so that the filtering effect is improved. Various impurities and harmful substances in the fluid are effectively removed, and the filtering precision and efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to sintered felt, in particular to a high-uniformity multi-layer composite sintered felt specially used for filtration. Background Art

[0002] Sintered felt is a filter material made using a special process and plays a vital role in modern industry. With the continuous development of industry, various industries have increasingly higher requirements for filtration accuracy. In the pharmaceutical industry, the quality and purity of drugs are directly related to the health and safety of patients. In order to ensure the effectiveness and safety of drugs, it is necessary to filter out tiny particulate impurities such as bacteria, viruses, and particles. Traditional filter materials, such as filter paper and filter cloth, are difficult to meet the pharmaceutical industry's demand for high-precision filtration. The filtration accuracy of these traditional materials is limited and leakage is prone to occur, which affects the quality and purity of drugs. Therefore, there is a special need for a high-uniformity multi-layer composite sintered felt specially designed for filtration.

[0003] However, some existing sintered felts may have uneven pore distribution during the production process due to the instability of process control. This leads to inconsistent filtration effects in actual filtration applications, and cannot guarantee stable and efficient interception of particulate impurities of different particle sizes, affecting the overall filtration accuracy. Utility Model Content

[0004] The purpose of the present utility model is to provide a high-uniformity multi-layer composite sintered felt specially used for filtration, so as to solve the problem that the existing high-uniformity multi-layer composite sintered felt specially used for filtration proposed in the above-mentioned background technology, but the existing sintered felt, part of the sintered felt may have uneven pore distribution during the production process due to the instability of process control, which leads to inconsistent filtration effects in actual filtration applications, and cannot guarantee stable and efficient interception of particulate impurities of different particle sizes, affecting the overall filtration accuracy.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a multi-layer composite sintered felt specially used for filtration with high uniformity, comprising a felt body, a protective mesh sleeve provided on the outer wall surface of the felt body, an upper end cover installed on the upper surface of the felt body, a lower end cover installed on the lower surface of the felt body, a connecting rod fixedly connected to the inner wall surface of the felt body, a first filter plate passing through the surface of the connecting rod, a second filter plate passing through the middle portion of the connecting rod, a third filter plate fixedly connected to the other end surface of the connecting rod, and a filter element provided at the inner center of the felt body;

[0006] The filter element includes a skeleton, a first non-woven fabric, an activated carbon fiber composite material and a second non-woven fabric. The skeleton is arranged at the inner center position of the felt body, the first non-woven fabric is arranged near the center part of the skeleton, the second layer of the skeleton is arranged with an activated carbon fiber composite material, and the outermost surface of the skeleton is arranged with a second non-woven fabric.

[0007] Preferably, the protective mesh is made of galvanized iron wire and is tightly attached to the surface of the felt body.

[0008] Preferably, the outer wall size of the upper end cover matches the inner wall size of the felt body, and the outer wall size of the lower end cover matches the inner wall size of the felt body.

[0009] Preferably, the connecting rods are provided in multiple groups on the inner wall surface of the felt body, and the connecting rods in each group are distributed at equal intervals.

[0010] Preferably, the first filter plate is made of ceramic fiber, the second filter plate is made of stainless steel, and the third filter plate is made of aluminum.

[0011] Preferably, the pore size of the first filter plate is larger than that of the second filter plate, and the pore size of the second filter plate is larger than that of the third filter plate.

[0012] Preferably, the thickness of the first non-woven fabric and the second non-woven fabric is between 0.1 mm and 0.5 mm, and the adsorption performance of the activated carbon fiber composite material should meet the requirement that the adsorption efficiency of specific pollutants under specific use environment is not less than 80%.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the multi-layer composite sintered felt with high uniformity specially used for filtration, through the setting of the filter element, when the fluid to be filtered enters the felt body, it will first contact the filter element, and the fluid will penetrate into the interior of the filter element under the action of pressure. The skeleton serves as the supporting structure of the filter element, providing a stable framework for the entire filter element, which ensures that the filter element will not deform during the filtration process and maintains its specific shape and filtration channel. The first non-woven fabric serves as the first line of defense, mainly intercepting larger particles of impurities. Since the non-woven fabric has a certain pore structure, larger particles are blocked on its surface, while smaller particles and fluids continue to penetrate into the interior of the filter element. Then, the fluid passes through the activated carbon fiber composite material. The activated carbon fiber has a rich microporous structure and huge The specific surface area can efficiently adsorb harmful substances such as organic matter, odor, and some heavy metal ions in the fluid through physical adsorption and chemical adsorption. At the same time, the activated carbon fiber composite material can also selectively adsorb specific pollutants according to the properties of the fluid, thereby further improving the accuracy and effect of filtration. Finally, the second non-woven fabric serves as the outer layer protection of the filter element to prevent the particles of the activated carbon fiber composite material from falling off. At the same time, it also intercepts fine particles of the fluid after being filtered by the activated carbon fiber, ensuring that the fluid flowing out of the filter element reaches a higher purity. Through the synergistic effect of the multi-layer structure, the filter element can effectively remove various impurities and harmful substances in the fluid, including tiny particles, organic matter, heavy metal ions, etc., greatly improving the accuracy and efficiency of filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a side view of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the first filter plate and the second filter plate cooperating with each other in the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the filter element of the present invention.

[0018] In the figure: 1. Felt body; 2. Protective mesh; 3. Upper end cover; 4. Lower end cover; 5. Connecting rod; 6. First filter plate; 7. Second filter plate; 8. Third filter plate; 9. Filter element; 901. Skeleton; 902. First non-woven fabric; 903. Activated carbon fiber composite material; 904. Second non-woven fabric. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0020] See also Figure 1-4 The utility model provides a technical solution: a multi-layer composite sintered felt with high uniformity for filtration, comprising a felt body 1, a protective mesh sleeve 2 provided on the outer wall surface of the felt body 1, an upper end cover 3 installed on the upper surface of the felt body 1, a lower end cover 4 installed on the lower surface of the felt body 1, a connecting rod 5 fixedly connected to the inner wall surface of the felt body 1, a first filter plate 6 passing through the surface of the connecting rod 5, a second filter plate 7 passing through the middle part of the connecting rod 5, a third filter plate 8 fixedly connected to the other end surface of the connecting rod 5, and a filter element 9 provided in the inner center of the felt body 1;

[0021] The filter element 9 includes a skeleton 901, a first non-woven fabric 902, an activated carbon fiber composite material 903 and a second non-woven fabric 904. The skeleton 901 is provided at the inner center of the felt body 1, and the first non-woven fabric 902 is provided near the center part of the skeleton 901. The second layer of the skeleton 901 is provided with an activated carbon fiber composite material 903, and the outermost surface of the skeleton 901 is provided with a second non-woven fabric 904. Through the arrangement of the filter element 9, when the fluid to be filtered enters the felt body 1, it will first contact the filter element 9. The fluid penetrates into the filter element 9 under the action of pressure. The skeleton 901 serves as the supporting structure of the filter element 9 and provides a stable framework for the entire filter element 9. It ensures that the filter element 9 will not deform during the filtration process and maintains its specific shape and filtration channel. The first non-woven fabric 902 serves as the first line of defense and mainly intercepts larger particles of impurities. Since the non-woven fabric has a certain pore structure, larger particles are blocked on its surface, while smaller particles and fluids continue to pass through. It continues to penetrate into the interior of the filter element 9, and then the fluid passes through the activated carbon fiber composite material 903. The activated carbon fiber has a rich microporous structure and a huge specific surface area. It can efficiently adsorb organic matter, odor, some heavy metal ions and other harmful substances in the fluid through physical adsorption and chemical adsorption. At the same time, the activated carbon fiber composite material 903 can also selectively adsorb specific pollutants according to the properties of the fluid, thereby further improving the accuracy and effect of filtration. Finally, the second non-woven fabric 904 serves as the outer layer protection of the filter element 9 to prevent the particles of the activated carbon fiber composite material 903 from falling off. At the same time, it also intercepts the fine particles of the fluid after being filtered by the activated carbon fiber again, ensuring that the fluid flowing out of the filter element 9 reaches a higher purity. Through the synergistic effect of the multi-layer structure, the filter element 9 can effectively remove various impurities and harmful substances in the fluid, including tiny particles, organic matter, heavy metal ions, etc., greatly improving the accuracy and efficiency of filtration.

[0022] Furthermore, the protective mesh 2 is composed of galvanized iron wire and fits tightly to the surface of the felt body 1. Through the setting of the protective mesh 2, the protective mesh 2 is composed of galvanized iron wire and fits tightly to the surface of the felt body 1, providing effective external protection for the felt body 1. The galvanized iron wire has certain strength and corrosion resistance, which can prevent the felt body 1 from external mechanical damage during transportation, installation and use, thereby ensuring the integrity and stability of the felt body 1 structure.

[0023] Furthermore, the outer wall size of the upper end cover 3 is consistent with the inner wall size of the felt body 1, and the outer wall size of the lower end cover 4 is consistent with the inner wall size of the felt body 1. Through the arrangement of the upper end cover 3 and the lower end cover 4, the outer wall size of the upper end cover 3 and the lower end cover 4 is consistent with the inner wall size of the felt body 1, so that the connection between the upper end cover 3 and the lower end cover 4 and the felt body 1 is tighter. This design can prevent the fluid from leaking from the edge during the filtration process, thereby improving the efficiency and reliability of the filtration. At the same time, the tight connection also enhances the structural stability of the entire sintered felt, enabling it to withstand certain pressure and impact.

[0024] Furthermore, multiple groups of connecting rods 5 are provided on the inner wall surface of the felt body 1, and each group of connecting rods 5 is evenly spaced. Through the setting of the connecting rods 5, multiple groups of evenly spaced connecting rods 5 play a supporting and fixing role inside the felt body 1. The setting of the connecting rods 5 enables each filter layer to remain in the correct position and will not be displaced or deformed due to the impact of the fluid, which helps to ensure the uniformity and stability of the filtration and improves the filtration effect.

[0025] Furthermore, the first filter plate 6 is made of ceramic fiber, the second filter plate 7 is made of stainless steel, and the third filter plate 8 is made of aluminum plate. Through the arrangement of the first filter plate 6, the second filter plate 7 and the third filter plate 8, the first filter plate 6 made of ceramic fiber has the characteristics of high temperature resistance and corrosion resistance, and can intercept larger particles of impurities. The second filter plate 7 made of stainless steel has high strength and wear resistance, and can further filter smaller particles. The third filter plate 8 made of aluminum plate is light in weight and has good thermal conductivity, and can perform the final interception of fine particles.

[0026] Furthermore, the pore size of the first filter plate 6 is larger than that of the second filter plate 7, and the pore size of the second filter plate 7 is larger than that of the third filter plate 8. By setting the first filter plate 6, the second filter plate 7 and the third filter plate 8, different pore size designs can achieve graded filtration of the fluid.

[0027] Furthermore, the thickness of the first non-woven fabric 902 and the second non-woven fabric 904 is between 0.1 mm and 0.5 mm, and the adsorption performance of the activated carbon fiber composite material 903 should meet the requirements of an adsorption efficiency of not less than 80% for specific pollutants under a specific usage environment. Through the arrangement of the first non-woven fabric 902, the activated carbon fiber composite material 903 and the second non-woven fabric 904, the thickness of the first non-woven fabric 902 and the second non-woven fabric 904 in the filter element 9 is between 0.1 mm and 0.5 mm, which can provide appropriate support and protection without causing excessive resistance to the flow of the fluid. At the same time, the high adsorption performance of the activated carbon fiber composite material 903 and the adsorption efficiency of specific pollutants are not less than 80%, which can effectively remove harmful substances in the fluid and improve the quality of the filtered fluid.

[0028] Working principle: First, when the fluid to be filtered continuously enters the felt body 1, the fluid will first contact the protective mesh 2 on the outer wall of the felt body 1. The protective mesh 2 is composed of galvanized iron wire, which can not only prevent external mechanical collisions and scratches from damaging the felt body 1, but also to a certain extent block larger foreign particles from directly impacting the felt body 1. The fluid then enters the interior of the felt body 1 through the upper end cover 3 and the lower end cover 4, which are tightly connected to the inner wall of the felt body 1. Since the upper end cover 3 and the lower end cover 4 match the size of the inner wall of the felt body 1, it ensures that the fluid can only flow according to a specific channel and will not leak from the edge, ensuring the efficiency and reliability of the filtration process. After entering the interior of the felt body 1, the fluid encounters multiple groups of equally spaced particles. The connecting rod 5 and the first filter plate 6, the second filter plate 7 and the third filter plate 8 passing through the connecting rod 5, the filter plates of different materials and pore sizes perform graded filtration on the fluid. First, the first filter plate 6 made of ceramic fiber, with its high temperature resistance and corrosion resistance, intercepts larger particles of impurities, reducing the pressure for subsequent fine filtration. Then, the second filter plate 7 made of stainless steel, with its high strength and wear resistance, further filters smaller particles. Finally, the third filter plate 8 made of aluminum plate, with its light weight and good thermal conductivity, performs the final interception of fine particles. After the preliminary filtration of the three-layer filter plate, the fluid reaches the filter element 9 in the center of the felt body 1. The fluid is under pressure. Under the action of the filter element 9, the skeleton 901 serves as the supporting structure of the filter element 9, ensuring that the filter element 9 maintains a stable shape and filtration channel during the filtration process and will not be deformed by the pressure of the fluid. The first non-woven fabric 902 serves as the first line of defense to intercept larger particles of impurities, allowing smaller particles and fluid to continue to penetrate into the filter element 9. Then, the fluid passes through the activated carbon fiber composite material 903. The activated carbon fiber, with its rich microporous structure and huge specific surface area, efficiently absorbs organic matter, odor, some heavy metal ions and other harmful substances in the fluid through physical adsorption and chemical adsorption, and can selectively adsorb specific pollutants according to the properties of the fluid, further improving The accuracy and effect of filtration. Finally, the second non-woven fabric 904 serves as the outer layer protection of the filter element 9 to prevent the particles of the activated carbon fiber composite material 903 from falling off. At the same time, it intercepts the fine particles of the fluid after being filtered by the activated carbon fiber again, ensuring that the fluid flowing out of the filter element 9 reaches a higher purity. During the entire filtration process, the multi-layer composite structure works together, from the external protective mesh 2 to the internal filter plates and filter elements 9 at all levels, to achieve effective removal of various impurities and harmful substances in the fluid, greatly improving the accuracy and efficiency of filtration, and providing a reliable solution for the filtration needs of different industries. In this way, the use process of a high-uniformity multi-layer composite sintered felt specially used for filtration is completed.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer composite sintered felt with high uniformity for filtration, comprising a felt body (1), characterized in that: The outer wall surface of the felt body (1) is provided with a protective mesh sleeve (2), the upper surface of the felt body (1) is provided with an upper end cover (3), the lower surface of the felt body (1) is provided with a lower end cover (4), the inner wall surface of the felt body (1) is fixedly connected with a connecting rod (5), the surface of the connecting rod (5) is penetrated by a first filter plate (6), the middle part of the connecting rod (5) is penetrated by a second filter plate (7), the other end surface of the connecting rod (5) is fixedly connected with a third filter plate (8), and the inner center of the felt body (1) is provided with a filter element (9); The filter element (9) comprises a skeleton (901), a first non-woven fabric (902), an activated carbon fiber composite material (903) and a second non-woven fabric (904); the skeleton (901) is arranged at the inner center of the felt body (1); the first non-woven fabric (902) is arranged near the center of the skeleton (901); the second layer of the skeleton (901) is provided with the activated carbon fiber composite material (903); and the outermost surface of the skeleton (901) is provided with the second non-woven fabric (904).

2. The high-uniformity multi-layer composite sintered felt for filtration according to claim 1, characterized in that: The protective mesh sleeve (2) is composed of galvanized iron wire and is tightly attached to the surface of the felt body (1).

3. The high-uniformity multi-layer composite sintered felt for filtration according to claim 1, characterized in that: The outer wall size of the upper end cover (3) matches the inner wall size of the felt body (1), and the outer wall size of the lower end cover (4) matches the inner wall size of the felt body (1).

4. The high-uniformity multi-layer composite sintered felt for filtration according to claim 1, characterized in that: The connecting rods (5) are arranged in multiple groups on the inner wall surface of the felt body (1), and the connecting rods (5) in each group are distributed at equal intervals.

5. The high-uniformity multi-layer composite sintered felt for filtration according to claim 1, characterized in that: The first filter plate (6) is made of ceramic fiber, the second filter plate (7) is made of stainless steel, and the third filter plate (8) is made of aluminum.

6. The high uniformity multi-layer composite sintered felt for filtration according to claim 1, characterized in that: The pore size of the first filter plate (6) is larger than the pore size of the second filter plate (7), and the pore size of the second filter plate (7) is larger than the pore size of the third filter plate (8).

7. The high-uniformity multi-layer composite sintered felt for filtration according to claim 1, characterized in that: The thickness of the first non-woven fabric (902) and the second non-woven fabric (904) is between 0.1 mm and 0.5 mm, and the adsorption performance of the activated carbon fiber composite material (903) should meet the requirements of an adsorption efficiency of not less than 80% for specific pollutants under a specific use environment.

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