Three-dimensional reticular porous titanium fiber sintered felt

Abstract

The utility model belongs to the technical field of sintered felts, and particularly relates to a three-dimensional net-shaped porous titanium fiber sintered felt which comprises a titanium fiber sintered felt body, and the titanium fiber sintered felt body is formed by sintering a first supporting layer, a first titanium fiber filtering layer, a second supporting layer, a second titanium fiber filtering layer and a third supporting layer. A second stable protruding block is fixed to the second supporting layer, and the two ends of the second stable protruding block extend out of the second supporting layer. Third stable protruding blocks are evenly fixed to the third supporting layer. The multi-layer titanium fiber sintered felt structure is arranged, and the pore diameter of the titanium fiber sintered felt is sequentially reduced from top to bottom, so that multi-stage filtration can be realized, and the filtration efficiency and the assimilative capacity are better; after sintering, the first stable convex blocks are embedded into the second filter holes, the second stable convex blocks are embedded into the second filter holes and the fourth filter holes, the third stable convex blocks are embedded into the fourth filter holes, and the upper filter screen and the lower filter screen are matched, so that the structural strength and the stability of the sintered felt are greatly improved, and the service life of the sintered felt is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of sintered felts, and in particular relates to a three-dimensional mesh porous titanium fiber sintered felt. Background Art

[0002] Sintered felt is a product with long service life, environmental protection and energy saving, high temperature resistance, deformation resistance, no carbon deposition, good toughness, foldability, uniform pore size distribution, and very high porosity and pollution holding capacity. It is widely used in automobile exhaust treatment, burners, boiler transformation, gas air conditioning, glass annealing, food baking, ovens, heaters, coated paper industry, drying industry and other fields.

[0003] Metal fiber sintered felt is made of metal fibers with a diameter of micron level through non-woven laying, stacking and high-temperature sintering. Multi-layer metal fiber felt forms a pore gradient by layers of different pore sizes, which can be controlled to obtain extremely high filtration accuracy and a larger dirt holding capacity than a single-layer felt. It can continuously maintain the filtration effect of the filter cloth and has the characteristics of three-dimensional mesh, porous structure, high porosity, large surface area, uniform pore size and distribution.

[0004] In the prior art, a Chinese utility model patent with authorization announcement number CN212974452U discloses "a titanium fiber sintered felt", comprising a titanium fiber sintered body, wherein the top and bottom surfaces of the titanium fiber sintered body are both provided with a support layer, a titanium fiber filter screen is provided at the bottom of the support layer, a titanium fiber filter screen is provided at the bottom of the titanium fiber filter screen, a separation layer is provided at the bottom of the titanium fiber filter layer, and the titanium fiber sintered body is formed by sintering and fixing the support layer, the titanium fiber filter screen, the titanium fiber filter layer, and the separation layer.

[0005] Although the titanium fiber sintered felt in the prior art has good flexibility and structural strength, the sintering strength between the components needs to be improved. After long-term use, it is easy to separate due to the impact of water flow, affecting the filtering effect.

[0006] In order to solve the above problems, the present application proposes a three-dimensional mesh porous titanium fiber sintered felt. Utility Model Content

[0007] In order to solve the above problems existing in the prior art, the utility model provides a three-dimensional mesh porous titanium fiber sintered felt, which has the characteristics of easy use, high stability and good filtering effect.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-dimensional mesh porous titanium fiber sintered felt, comprising a titanium fiber sintered felt body, wherein the titanium fiber sintered felt body is composed of a first support layer, a first titanium fiber filter layer, a second support layer, a second titanium fiber filter layer and a third support layer;

[0009] A first stabilizing protrusion is evenly fixed on the first supporting layer, and both ends of the first stabilizing protrusion extend out of the first supporting layer, a first filter hole is opened on the first stabilizing protrusion, and a second filter hole is evenly opened on the first titanium fiber filter layer, and the lower end of the first stabilizing protrusion is embedded in the second filter hole;

[0010] A second stabilizing protrusion is evenly fixed on the second supporting layer, and both ends of the second stabilizing protrusion extend out of the second supporting layer, a third filter hole is opened on the second stabilizing protrusion, and a fourth filter hole is evenly opened on the second titanium fiber filter layer, and the lower end of the second stabilizing protrusion is embedded in the fourth filter hole, and the upper end is embedded in the second filter hole;

[0011] A third stabilizing protrusion is evenly fixed on the third supporting layer, and both ends of the third stabilizing protrusion extend out of the third supporting layer. A fifth filter hole is opened on the third stabilizing protrusion, and the upper end of the third stabilizing protrusion is embedded in the fourth filter hole.

[0012] Preferably, the first support layer, the first titanium fiber filter layer, the second support layer, the second titanium fiber filter layer and the third support layer have the same thickness, which is 0.3 mm-0.5 mm.

[0013] Preferably, the first filter hole, the second filter hole, the third filter hole, the fourth filter hole and the fifth filter hole are all conical holes that are larger at the top and smaller at the bottom.

[0014] Preferably, the pore sizes of the first filter hole, the second filter hole, the third filter hole, the fourth filter hole and the fifth filter hole decrease successively, and are 100 μm-400 μm.

[0015] Preferably, the first stabilizing protrusion, the second stabilizing protrusion and the third stabilizing protrusion are all conical structures that are larger at the top and smaller at the bottom.

[0016] Preferably, it also includes an upper filter screen, which is sintered and fixed on the top of the first supporting layer, and is a mesh structure made by interlacing upper weft threads and upper warp threads, and has a mesh diameter of 400 μm-500 μm.

[0017] Preferably, it further comprises a lower filter screen, which is sintered and fixed on the bottom of the third supporting layer, and is a mesh structure formed by interlacing lower weft threads and lower warp threads, and has a mesh diameter of 50 μm-100 μm.

[0018] Preferably, the upper filter screen, the first support layer, the first titanium fiber filter layer, the second support layer, the second titanium fiber filter layer, the third support layer and the lower filter screen are all titanium fiber components.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] In the utility model, a multi-layer titanium fiber sintered felt structure is provided, and the pore size of the titanium fiber sintered felt decreases from top to bottom, so that multi-stage filtration can be achieved, and the filtration efficiency and pollution holding capacity are better; after sintering, the first stabilizing protrusion is embedded in the second filter hole, the second stabilizing protrusion is embedded in the second filter hole and the fourth filter hole, and the third stabilizing protrusion is embedded in the fourth filter hole, and the upper filter screen and the lower filter screen are cooperated, which greatly improves the structural strength and stability of the sintered felt and extends the service life of the sintered felt.

[0021] Other additional advantages and beneficial effects of the present application will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the axonometric structure of the main body of the titanium fiber sintered felt of the utility model;

[0025] Figure 3 For this utility model Figure 2 A is an enlarged structural diagram;

[0026] Figure 4 This is a schematic diagram of the axonometric structure of the upper filter in the utility model;

[0027] Figure 5 It is a schematic diagram of the axonometric structure of the lower filter in the utility model.

[0028] In the figure: 1. titanium fiber sintered felt body; 11. upper filter screen; 111. upper latitude; 112. upper warp; 12. first support layer; 121. first stabilizing protrusion; 122. first filter hole; 13. first titanium fiber filter layer; 131. second filter hole; 14. second support layer; 141. second stabilizing protrusion; 142. third filter hole; 15. second titanium fiber filter layer; 151. fourth filter hole; 16. third support layer; 161. third stabilizing protrusion; 162. fifth filter hole; 17. lower filter screen; 171. lower latitude; 172. lower warp. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 5 The utility model provides the following technical solutions: a three-dimensional mesh porous titanium fiber sintered felt, comprising a titanium fiber sintered felt body 1, wherein the titanium fiber sintered felt body 1 is composed of a first support layer 12, a first titanium fiber filter layer 13, a second support layer 14, a second titanium fiber filter layer 15 and a third support layer 16;

[0031] Further, by Figure 1-Figure 3 As shown, a first stabilizing protrusion 121 is evenly fixed on the first supporting layer 12, and both ends of the first stabilizing protrusion 121 extend out of the first supporting layer 12, a first filter hole 122 is opened on the first stabilizing protrusion 121, and a second filter hole 131 is evenly opened on the first titanium fiber filter layer 13, and the lower end of the first stabilizing protrusion 121 is embedded in the second filter hole 131, and the first supporting layer 12 and the first titanium fiber filter layer 13 are sintered and fixed. When the first supporting layer 12 and the first titanium fiber filter layer 13 are sintered together, the lower end of the first stabilizing protrusion 121 is embedded in the second filter hole 131, which greatly improves the stability of the sintering of the first supporting layer 12 and the first titanium fiber filter layer 13, and the filtering function is realized by the first filter hole 122;

[0032] Further, by Figure 1-Figure 3As shown, a second stabilizing protrusion 141 is evenly fixed on the second supporting layer 14, and both ends of the second stabilizing protrusion 141 extend out of the second supporting layer 14, a third filter hole 142 is opened on the second stabilizing protrusion 141, and a fourth filter hole 151 is evenly opened on the second titanium fiber filter layer 15, the lower end of the second stabilizing protrusion 141 is embedded in the fourth filter hole 151, and the upper end is embedded in the second filter hole 131, the first titanium fiber filter layer 13, the second supporting layer 14 and the second titanium fiber filter layer 15 are sintered and fixed, and when the first titanium fiber filter layer 13, the second supporting layer 14 and the second titanium fiber filter layer 15 are sintered together, the lower end of the second stabilizing protrusion 141 is embedded in the fourth filter hole 151, and the upper end is embedded in the second filter hole 131, which greatly improves the sintering stability of the first titanium fiber filter layer 13, the second supporting layer 14 and the second titanium fiber filter layer 15;

[0033] Further, by Figure 1-Figure 3 As shown, a third stabilizing protrusion 161 is evenly fixed on the third supporting layer 16, and both ends of the third stabilizing protrusion 161 extend out of the third supporting layer 16, a fifth filter hole 162 is opened on the third stabilizing protrusion 161, and the upper end of the third stabilizing protrusion 161 is embedded in the fourth filter hole 151, and the second titanium fiber filter layer 15 and the third supporting layer 16 are sintered and fixed. When the second titanium fiber filter layer 15 and the third supporting layer 16 are sintered together, the upper end of the third stabilizing protrusion 161 is embedded in the fourth filter hole 151, which greatly improves the sintering stability of the second titanium fiber filter layer 15 and the third supporting layer 16.

[0034] Preferably, by Figure 1-Figure 3 As shown, in the present embodiment, the thicknesses of the first support layer 12, the first titanium fiber filter layer 13, the second support layer 14, the second titanium fiber filter layer 15 and the third support layer 16 are the same, which are all 0.3mm-0.5mm. If there are other requirements, the thicknesses of the first support layer 12, the first titanium fiber filter layer 13, the second support layer 14, the second titanium fiber filter layer 15 and the third support layer 16 can also be designed separately, and the titanium fiber sintered felt can also be designed to have other numbers of layers.

[0035] Preferably, by Figure 1-Figure 3 As shown, in this embodiment, the first filter hole 122, the second filter hole 131, the third filter hole 142, the fourth filter hole 151 and the fifth filter hole 162 are all conical holes that are larger at the top and smaller at the bottom, which can achieve multi-stage filtration and filter impurities of different sizes, with better filtration efficiency and pollution-receiving capacity.

[0036] Preferably, by Figure 1-Figure 3As shown, in this embodiment, the apertures of the first filter hole 122, the second filter hole 131, the third filter hole 142, the fourth filter hole 151 and the fifth filter hole 162 decrease successively, which are 100μm-400μm, forming a three-dimensional network structure, which can achieve multi-stage filtration and filter impurities of different sizes.

[0037] Preferably, by Figure 1-Figure 3 As shown, in this embodiment, the first stabilizing protrusion 121, the second stabilizing protrusion 141 and the third stabilizing protrusion 161 are all conical structures with a larger top and a smaller bottom, which is convenient for sintering the first support layer 12, the first titanium fiber filter layer 13, the second support layer 14, the second titanium fiber filter layer 15 and the third support layer 16.

[0038] Preferably, by Figure 1-Figure 4 As shown, in this embodiment, an upper filter screen 11 is further included. The upper filter screen 11 is sintered and fixed on the top of the first supporting layer 12, and the upper filter screen 11 is a mesh structure formed by interlacing upper weft lines 111 and upper warp lines 112. The mesh diameter of the upper filter screen 11 is 400μm-500μm. The upper filter screen 11 can also filter impurities and is designed as a mesh structure. The top of the first stabilizing protrusion 121 is embedded in the mesh of the upper filter screen 11, which further improves the structural strength, filtration efficiency and stability of the sintered felt.

[0039] Preferably, by Figure 1-Figure 5 As shown, in this embodiment, a lower filter screen 17 is further included. The lower filter screen 17 is sintered and fixed on the bottom of the third supporting layer 16, and the lower filter screen 17 is a mesh structure formed by interlacing lower weft lines 171 and lower warp lines 172. The mesh diameter of the lower filter screen 17 is 50 μm-100 μm. The lower filter screen 17 can also filter impurities and is designed as a mesh structure. The bottom end of the third stabilizing protrusion 161 is embedded in the mesh of the lower filter screen 17, which further improves the structural strength, filtration efficiency and stability of the sintered felt.

[0040] Preferably, by Figure 1 As shown, in this embodiment, the upper filter 11, the first support layer 12, the first titanium fiber filter layer 13, the second support layer 14, the second titanium fiber filter layer 15, the third support layer 16 and the lower filter 17 are all titanium fiber components, which have good electrical conductivity and low resistivity, can prevent static electricity, and have good corrosion resistance and high temperature stability, and are not easy to corrode and deform.

[0041] Working principle and use process of the utility model: the three-dimensional mesh porous titanium fiber sintered felt of the utility model, the upper filter screen 11, the first support layer 12, the first titanium fiber filter layer 13, the second support layer 14, the second titanium fiber filter layer 15, the third support layer 16 and the lower filter screen 17 are sintered to form a titanium fiber sintered felt body 1;

[0042] The upper filter screen 11 is sintered and fixed on the top of the first support layer 12, and the top of the first stabilizing protrusion 121 is embedded in the mesh of the upper filter screen 11, further improving the structural strength of the sintered felt.

[0043] When the first support layer 12 and the first titanium fiber filter layer 13 are sintered together, the lower end of the first stabilizing protrusion 121 is embedded in the second filter hole 131, which greatly improves the sintering stability of the first support layer 12 and the first titanium fiber filter layer 13, and the first filter hole 122 realizes the filtering function;

[0044] When the first titanium fiber filter layer 13, the second support layer 14 and the second titanium fiber filter layer 15 are sintered together, the lower end of the second stabilizing protrusion 141 is embedded in the fourth filter hole 151, and the upper end is embedded in the second filter hole 131, which greatly improves the sintering stability of the first titanium fiber filter layer 13, the second support layer 14 and the second titanium fiber filter layer 15;

[0045] When the second titanium fiber filter layer 15 and the third support layer 16 are sintered together, the upper end of the third stabilizing protrusion 161 is embedded in the fourth filter hole 151, which greatly improves the sintering stability of the second titanium fiber filter layer 15 and the third support layer 16;

[0046] The lower filter screen 17 is sintered and fixed to the bottom of the third support layer 16, and the bottom end of the third stabilizing protrusion 161 is embedded in the mesh of the lower filter screen 17, further improving the structural strength of the sintered felt.

[0047] The multi-layer sintered felt structure of the utility model can realize multi-stage filtration and filter impurities of different sizes, and has better filtration efficiency and pollution holding capacity.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A three-dimensional mesh porous titanium fiber sintered felt, comprising a titanium fiber sintered felt body (1), characterized in that: The titanium fiber sintered felt body (1) is composed of a first support layer (12), a first titanium fiber filter layer (13), a second support layer (14), a second titanium fiber filter layer (15) and a third support layer (16) which are sintered; A first stabilizing protrusion (121) is evenly fixed on the first supporting layer (12), and both ends of the first stabilizing protrusion (121) extend out of the first supporting layer (12), a first filter hole (122) is provided on the first stabilizing protrusion (121), and a second filter hole (131) is evenly provided on the first titanium fiber filter layer (13), and the lower end of the first stabilizing protrusion (121) is embedded in the second filter hole (131); A second stabilizing protrusion (141) is evenly fixed on the second supporting layer (14), and both ends of the second stabilizing protrusion (141) extend out of the second supporting layer (14), a third filter hole (142) is provided on the second stabilizing protrusion (141), and a fourth filter hole (151) is evenly provided on the second titanium fiber filter layer (15), the lower end of the second stabilizing protrusion (141) is embedded in the fourth filter hole (151), and the upper end is embedded in the second filter hole (131); A third stabilizing protrusion (161) is evenly fixed on the third supporting layer (16), and both ends of the third stabilizing protrusion (161) extend out of the third supporting layer (16), a fifth filter hole (162) is opened on the third stabilizing protrusion (161), and the upper end of the third stabilizing protrusion (161) is embedded in the fourth filter hole (151).

2. The three-dimensional mesh porous titanium fiber sintered felt according to claim 1, characterized in that: The first support layer (12), the first titanium fiber filter layer (13), the second support layer (14), the second titanium fiber filter layer (15) and the third support layer (16) have the same thickness, which is 0.3 mm to 0.5 mm.

3. The three-dimensional mesh porous titanium fiber sintered felt according to claim 1, characterized in that: The first filter hole (122), the second filter hole (131), the third filter hole (142), the fourth filter hole (151) and the fifth filter hole (162) are all conical holes that are larger at the top and smaller at the bottom.

4. The three-dimensional mesh porous titanium fiber sintered felt according to claim 1, characterized in that: The apertures of the first filter hole (122), the second filter hole (131), the third filter hole (142), the fourth filter hole (151) and the fifth filter hole (162) decrease in sequence and are in the range of 100 μm to 400 μm.

5. The three-dimensional mesh porous titanium fiber sintered felt according to claim 1, characterized in that: The first stabilizing protrusion (121), the second stabilizing protrusion (141) and the third stabilizing protrusion (161) are all conical structures with a larger top and a smaller bottom.

6. The three-dimensional mesh porous titanium fiber sintered felt according to claim 1, characterized in that: It also comprises an upper filter screen (11), the upper filter screen (11) being sintered and fixed on the top of the first support layer (12), and the upper filter screen (11) being a mesh structure formed by interlacing and weaving upper weft threads (111) and upper warp threads (112), and the mesh diameter of the upper filter screen (11) being 400 μm-500 μm.

7. The three-dimensional mesh porous titanium fiber sintered felt according to claim 6, characterized in that: The invention also comprises a lower filter screen (17), wherein the lower filter screen (17) is sintered and fixed on the bottom of the third support layer (16), and the lower filter screen (17) is a mesh structure formed by interlacing and weaving lower weft threads (171) and lower warp threads (172), and the mesh diameter of the lower filter screen (17) is 50 μm-100 μm.

8. The three-dimensional mesh porous titanium fiber sintered felt according to claim 7, characterized in that: The upper filter screen (11), the first support layer (12), the first titanium fiber filter layer (13), the second support layer (14), the second titanium fiber filter layer (15), the third support layer (16), and the lower filter screen (17) are all titanium fiber components.

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