CN202909533U - Multi-stage filter for purifying metals - Google Patents

Abstract

The utility model provides a multi-stage filter for purifying metal, which belongs to the technical field of metallurgy, and comprises a filter body, three filter elements with different pore diameters, and a plurality of filter holes evenly distributed on each filter element. The utility model is superior in that: the use of filter elements with different pore diameters can not only remove large-sized inclusion particles in the molten metal, but also remove small-sized inclusion particles in the molten metal, and the cleanliness of the molten metal is significantly improved , the quality of the final metallurgical product is excellent; at the same time, the setting of the filter element stabilizes the flow state of the molten metal in the filter, which is conducive to the smooth operation of the refining operation.

Description

A multi-stage filter for purifying metal

technical field

The utility model belongs to the technical field of metallurgy and relates to a multistage filter for purifying metal. the

Background technique

In recent years, as the challenges faced by the metallurgical industry in the market competition have intensified, users' requirements for the quality of metallurgical products have continued to increase, resulting in a variety of production technologies to improve metallurgical products. Because the filter has the advantages of simple structure, easy manufacture, convenient installation and strong practicability, it has been widely used in the fields of casting, metallurgy, aluminum alloy profiles and chemical industry. In actual refining operations, metallurgists generally use filters with a single pore size to remove inclusions in molten metal, which is likely to cause poor effect of filters in removing inclusions. If you choose a filter with a large pore size, you can only remove the large particle inclusions in the molten metal, but the small particle inclusions are not easy to remove; if you use a small pore filter, the filter can capture the small particle inclusions well, but the large particles Inclusion particles of small size tend to clog the filter. The selection of a filter with a single pore size often makes the quality of the final metallurgical product not guaranteed. the

Utility model content

The purpose of this utility model is to provide a multi-stage filter for purifying metals, which can solve the above-mentioned technical problems. the

In order to achieve the above object, the technical solution of the utility model is: a multi-stage filter for purifying metal, which is characterized in that it includes a filter body 1 and filter elements with three different apertures, and several filter holes are evenly distributed on each filter element; The filter elements are: 10PPI pore size filter element 2, 30PPI pore size filter element 3, 45PPI pore size filter element 4, installed in sequence along the flow direction of the molten metal, all firmly connected with the filter body 1; the filter holes are 10PPI pore size filter hole 5, 30PPI aperture filter hole 6, 45PPI aperture filter hole 7. the

Further, in the above technical solution, the shapes of the 10PPI filter holes 5, 30PPI filter holes 6, and 45PPI filter holes 7 are all circular through holes. the

Further, in the above technical solution, the directions of the 10PPI filter holes 5, 30PPI filter holes 6, and 45PPI filter holes 7 are parallel to the flow direction of the molten metal. the

The utility model is superior in that: the use of filter elements with different pore diameters can not only remove large-sized inclusion particles in the molten metal, but also remove small-sized inclusion particles in the molten metal, and the cleanliness of the molten metal is significantly improved , the quality of the final metallurgical product is excellent; at the same time, the setting of the filter element stabilizes the flow state of the molten metal in the filter, which is conducive to the smooth operation of the refining operation. the

Description of drawings

Below in conjunction with accompanying drawing, technical scheme of the present utility model is further described:

Figure 1: Schematic diagram of the structure of a multi-stage filter for purifying metals. the

Figure 2: Sectional view of plane A-A in Figure 1. the

Figure 3: Sectional view of plane B-B in Figure 1. the

Figure 4: Sectional view of plane C-C in Figure 1. the

Among them: 1-filter body, 2-10PPI aperture filter element, 3-30PPI aperture filter element, 4-45PPI aperture filter element, 5-10PPI aperture filter hole, 6-30PPI aperture filter hole, 7-45PPI aperture filter hole

Detailed ways

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a multi-stage filter for purifying metals, including filter body 1, 10PPI pore size filter element 2, 30PPI pore size filter element 3, 45PPI pore size filter element 4, 10PPI pore size filter Hole 5, 30PPI pore size filter hole 6, 45PPI pore size filter hole 7. The directions of the filter holes 5, 6 and 7 are all parallel to the flow direction of the molten metal. During the refining operation, the molten metal first flows in from the inlet at the left end of the filter, passes through filter element 2, filter element 3 and filter element 4 respectively, and then flows out from the outlet at the right end of the filter. In the above process, the sequential distribution of 10PPI pore size filter element 2, 30PPI pore size filter element 3 and 45PPI pore size filter element 4 will capture large-size inclusion particles and small-size inclusion particles respectively, and the cleanliness of the molten metal will be significantly improved. Finally, Metallurgical products are of good quality. At the same time, the molten metal flowing out from the filter hole 7 with a pore size of 45PPI is in a stable flow state, which is conducive to the smooth flow of the refining operation. the

Claims (3)

1. a multi-stage filter for purifying metal is characterized in that it comprises a filter body (1) and filter elements of three different apertures, and some filter holes are uniformly distributed on every kind of filter element; filter element is: 10PPI aperture filter element ( 2), 30PPI pore size filter elements (3), 45PPI pore size filter elements (4), are installed in the order of distribution along the flow direction of molten metal, and are firmly connected with the filter body (1); the filter holes are 10PPI pore size filter holes (5) , 30PPI aperture filter hole (6), 45PPI aperture filter hole (7). the 2. a kind of multistage filter for purifying metal as claimed in claim 1 is characterized in that, the shape of 10PPI aperture filter hole (5), 30PPI aperture filter hole (6), 45PPI aperture filter hole (7) is Circular through hole. the 3. a kind of multistage filter for purifying metal as claimed in claim 1 or 2 is characterized in that, the direction of 10PPI aperture filter hole (5), 30PPI aperture filter hole (6), 45PPI aperture filter hole (7) Parallel to the flow direction of molten metal. the

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