75results about How to "Equipment condition is simple" patented technology

The invention discloses a plant-based active flame-retardant fire extinguishant, and a preparation method and an application thereof. The plant-based active flame-retardant fire extinguishant is prepared through mainly compounding 15-20% of a plant-based anti-burning agent, 8-17% of a plant-based composite flame-retardant activator and 63-82% of plant residue ash water; and the fire extinguishantis used after being mixed with water to achieve a concentration of 1-5% and added into a fire extinguishing device. Various plant fruits are added, so vegetable proteins having different sources, pectin, tannin-rich polyhydroxy compounds, lignin and the anti-burning substance are increased, thereby the plant-based active flame-retardant fire extinguishant has a strong fire extinguishing function and an ideal fire extinguishing effect inaccessible to existing fire extinguishants; and the plant-based active flame-retardant fire extinguishant has the advantages of easily available raw materials,low price, simple preparation process, simple device conditions, low cost, convenience in use, and suitableness for attacking class A, B and C large-area fires.

The invention belongs to an artificial swan goose raising technology, in particular relates to a method for artificially raising a non-migratory swan goose within a free range. The swan goose remaining the bride growth habit and being non-migratory can be produced on a large scale through a series of special artificial free-range raising methods including artificial hatching of hatching eggs, hatched young swan goose raising, free-range raising and acclimating of middle-aged swan gooses and raising and propagating of male swan gooses. The swan goose produced by using the method not only remains the main wild habits including free field fight and autonomous field food intake, but also has the characteristic of resident birds without seasonal migration. Therefore, a great number of edible birds with the nutritional values of real wild birds can be provided for people.

The invention discloses a graphene-containing lead alloy for lead storage battery grids. The graphene-containing lead alloy includes 0.015-0.15% of graphene, 1.0-1.5% of tin, 0.02-0.04% of aluminum, 0.05-0.1% of calcium and 98.21-98.915% of lead. A preparation method of the graphene-containing lead alloy comprises the following steps: putting 2 / 3 of lead in a lead melting pot, and heating to 680DEG C in order to melt lead; adding graphene to molten lead; adding pure tin strips and pure aluminum strips 20min later, and stirring and mixing for above 0.5h; adding lead sheath packaged calcium, pressing calcium into the bottom of the molten lead by using a bell jar with the bottom provided with leakage holes, slowly stirring and mixing for above 0.5h when the molten lead does not bubble, adding the residual lead into the lead melting pot, continuously stirring after the lead is completely molten, and carrying out ingot casting 1h later. The preparation method has the advantages of simplicity, reliability, simple structure of a used device, and low cost; and the grids made by using the lead alloy prepared through the method have strong creep and corrosion resistance, and can meet deep cycle and heavy current charge and discharge requirements.