Combined multi-stage filter core and its making method

Combined multi-stage filter core and its making method

  • CN 1,199,707 C
  • Filed: 06/14/2002
  • Issued: 05/04/2005
  • Est. Priority Date: 06/14/2002
  • Status: Active Grant
First Claim
Patent Images

1. combined multi-stage filter core, it is characterized in that:

  • combined multi-stage filter core adopts composite A, its structure is the hollow circuit cylinder with three layers of coaxial composite bed, be followed successively by the coarse filtration layer of 5-10 order material, the middle filtering layer of 10-30 order material, the dark filtering layer of 30-50 order material from outside to inside, wherein above-mentioned used composite A is to handle the mixture that obtains through following method;

    (1) peanut shell is crushed to the 5-50 order with peeler, press 5-10 order, 10-30 order, the sorting of 30-50 order after, with 3%-7% p-methyl benzenesulfonic acid or hydrochloric acid, phosphoric acid dip 2-5 hour;

    (2) the leftover bits and pieces cotton seed hulls drying that grease factory is produced, remove the cottonseed benevolence of part remnants, press 10-30 order, the sorting of 30-50 order after, with the liquid caustic soda immersion of 3%-8% 15-20 hour;

    (3) will be selected from one or more string cutting and grinding in Banana Leaf, coconut leaf, coconut palm skin, Chinese alpine rush, Huang Jiaoteng, seat grass, straw, wheat straw, bagasse, bamboo, the reed to the 10-50 order, after pressing 10-30 order, the sorting of 30-50 order, the liquid caustic soda with 2% soaked 1-5 hour;

    (4) coconut shell flour is broken to the 5-50 order after, press 5-10 order, 10-30 order, the sorting of 30-50 order after, soaked 15-20 hour with 5% liquid caustic soda;

    (5) select 5-50 purpose silica gel for use, press 5-10 order, 10-30 order, the sorting of 30-50 order after, soak dry processing the after 20 minutes with amines;

    (6) select 10-50 order activated carbon for use, press 10-30 order, the sorting of 30-50 order after, soak dry processing the after 20-30 minute with amines;

    Is that a material district, 10-30 order are that a material district, 30-50 order are a material district with the raw material and the 5-50 purpose aluminium oxide of above-mentioned processing with the 5-10 order, by following weight portion mixing stirring proportioning;

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