Preparation method of semi-natural-material artificial carbon source material
A natural material and artificial technology, applied in the field of agricultural non-point source pollution control, can solve the problems of high cost, side effects, and large application limitations of operating costs, and achieve the effect of small nitrogen and phosphorus release and small side reactions
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[0033] The present invention provides a kind of preparation method of semi-natural material artificial carbon source material, comprises the following steps:
[0034] Step 1. Raw material pretreatment: If the rice bran contains debris, it needs to be sieved; if there is no coarse debris, it can not be sieved; the sawdust will contain coarse particles or lumps, which must be sieved, and the under-sieve of less than 2mm matter; starch does not need to be sieved;
[0035] Step 2. Weigh the starch, rice bran and sawdust respectively, and send them to the mixer to mix evenly according to the weight ratio of 1-3:1-3:1-3;
[0036] Step 3. Take polyvinyl alcohol powder, mix it with water at a weight concentration of 5%-15%, send it to a 0.165M P pressure cooker, and stir it at 121°C for 0.5h to dissolve completely;
[0037] Step 4. Put the uniformly mixed sawdust, rice bran and starch into the granulator, spray the polyvinyl alcohol pasty aqueous solution evenly from above, and granu...
Embodiment 1
[0040] If the rice bran contains debris, it needs to be sieved; if there are no coarser debris, it can not be sieved; the sawdust will contain coarse particles or lumps, which must be sieved, and the sieved material less than 2mm is taken; the starch does not need to be sieved; Weigh the starch, rice bran and sawdust respectively, and send them to the mixer for mixing evenly according to the weight ratio of 1:1:1; take the polyvinyl alcohol powder, mix it with water at a weight concentration of 10%, send it to a 0.165MP pressure cooker, and keep it at 121°C Stir for 0.5h to dissolve completely; put the uniformly mixed sawdust, rice bran, and starch into the granulator, spray the polyvinyl alcohol paste aqueous solution evenly from above, and granulate and form. The granulation temperature is controlled at 62°C, and the particle size is controlled at 3.5mm; after the granules are properly cooled, the finished product can be packaged, and the semi-natural material artificial carb...
Embodiment 2
[0042] If the rice bran contains debris, it needs to be sieved; if there are no coarser debris, it can not be sieved; the sawdust will contain coarse particles or lumps, which must be sieved, and the sieved material less than 2mm is taken; the starch does not need to be sieved; Weigh the starch, rice bran and sawdust respectively, and send them to the mixer for mixing evenly according to the weight ratio of 1:3:1; take the polyvinyl alcohol powder, mix it with water at a weight concentration of 5%, send it to a 0.165MP pressure cooker, and keep it at 121°C Stir for 0.5h to dissolve completely; put the uniformly mixed sawdust, rice bran, and starch into the granulator, spray the polyvinyl alcohol paste aqueous solution evenly from above, and granulate and form. The granulation temperature is controlled at 60°C, and the particle size is controlled at 4mm; after the granules are properly cooled, the finished product can be packaged, and the semi-natural material artificial carbon ...
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