42results about How to "Avoid overexploitation" patented technology

The invention provides a seedling cultivation matrix taking mushroom residue as raw material, as well as a manufacture method thereof. The matrix comprises the following components in volume portion: 1 to 3 portions of mushroom residue, 1 to 2 portions of vermiculite, 1 to 2 portions of perlite and 0.0001 to 0.0005 portion of fermentation promoter, wherein the fermentation promoter is a mixture of decay promoting microbial agent and bran with the weight ratio of 1 to 10. The matrix has the advantages of fully utilizing mushroom residue waste of agricultural production, using no peat at all and saving ecological resources, along with rich nutrition, good porosity, excellent physical properties, low cost and simple manufacture.

A heliotropin preparation method applied to the chemical synthesis field comprises steps as follows: (1) preparing an acetic acid aqueous solution from glacial acetic acid and water; (2) adding urotropine to the acetic acid aqueous solution once, performing water bath cooling, dropwise adding 3,4-methylenedioxybenzyl chloride, and performing heat preservation after addition; (3) adding pure water to a reactant in Step (2), performing temperature rise reflux, performing cooling after the reaction, extracting the reactant with an organic solvent, mixing organic layers, performing reduced pressure concentration, performing reduced pressure distillation on a concentrate, and collecting heliotropin fractions to obtain heliotropin. The heliotropin prepared with the method is white crystals rather than light yellow crystals containing nitro-compounds. The method has the advantages of simplicity in operation, low energy consumption, low cost, capability of avoiding overexploitation of plant resources and protecting the ecological environment and the like.

The method for processing special anhydrite cementitious material made of phosphogypsum with tunnel kiln equipment comprises the following steps: (1) batching and homogenization: by weight, 48-75 parts of phosphogypsum, 8-25 parts of stone coal and 15- 50 parts of waste rock slag are used for batching, grinding to make powder, adding 8 to 18 parts of water, and mixing and homogenizing into plastic materials; (2) Forming: forming plastic materials into molding materials; (3) Tunnel kiln calcination: Send it into the tunnel kiln, calcine at 980-1300°C for 20-60 minutes, and quench to obtain special anhydrite slag; (4) Preparation of special anhydrite cementitious material: grinding to obtain special anhydrite glue condensate material. The special anhydrite cementitious material obtained according to the method of the present invention contains a variety of hydration active minerals, can be widely used in the cement industry, has high strength when used, and is used as masonry cement or cement bricks, etc., without cracking and good strength; using this method The inventive method has the advantages of small investment, no generation of waste water and waste residue, and good economic efficiency.

The invention relates to a method for manufacturing a shadow changing recombined decorative wood by using a natural wood, which comprises the following steps of: by using the characteristic that the glossy reflections of fibers of the natural wood in different directions are different, combining and pressing obliquely cut veneers or obliquely sawn woodblocks in certain proportion according to fiber directions to produce the recombined decorative wood; or laminating, gluing and pressing veneers with the same fiber directions by using a specially-designed convexo-concave die to produce the recombined decorative wood. A certain cutting face of the recombined decorative wood produced by the method has a special decorative effect of alternating changes of darkness and brightness along with themovement of the visual direction. The method can realize that common low-price woods and fast-growing woods can have the color, the texture and the luster of a natural precious tree species by imitation, and particularly can be used for imitating high-grade decorative woods with shadow changing roots, burls and the like.

A liquid crystal display includes a first substrate including a light transmitting area and a light blocking area, a gate conductor configured to transfer gate signals and a data conductor configured to transfer data voltages, the gate conductor and the data conductor disposed on the first substrate, a color filter disposed on the gate conductor, a black column spacer disposed on the color filter and corresponding to the light blocking area, a second substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate, in which in the light blocking area, the color filter includes a step, the black column spacer overlaps the color filter including the step, and the black column spacer includes spacers having the same thickness.

An assemble type multifunctional habitat platform for animals comprises a support and a habitat plate, the support is installed on the wall, two or more supporting seats which are adjustable in height and perpendicular to the wall face are installed on the support, the habitat plate which is arranged horizontally is connected with the supporting seats in a sliding mode, the habitat plate comprises a habitat plate body of which the side, far away from the wall face, can turn upwards and fold and a width extension plate on the side near the wall face, the upper surface of the width extension plate is flush with the upper surface of the habitat plate body, gaps are formed between the lower side of the width extension plate and the supporting seats, width extension supporting blocks of which the size is matched with that of the width extension plate are fixed in the gaps, the two sides of the habitat plate body are connected with length extension plates respectively, and when the length extension plate slide outwards, the length extension plates form the habitat plate lengthening areas. According to the assemble type multifunctional habitat platform for the animals, the height, the length and the width can be adjusted according to animal species, ages, body sizes and climbing and jumping abilities, rest comfort of the animals is improved, the physique is enhanced, diseases and death are reduced, and breeding is promoted.

The invention discloses a reservoir sediment pumping system based on a robot algorithm to shape an artificial vortex, which includes a hull, the hull is provided with a vortex former; Inside the cage, the nozzle pipe is connected to the first water pump through a connecting pipe, and a plurality of nozzles are arranged inside the nozzle pipe; a sand pipe is arranged inside the water cage; the water inlet of the sand pipe and the sand pump The water outlet of the sediment pump is connected with an outlet pipe; the connection pipe is provided with a flow regulator. By setting the vortex former, a vortex is formed at the bottom of the reservoir, and at the same time, the sediment pump is used to extract and clean the sediment, which improves the efficiency of sand mining and effectively avoids over-exploitation.

A method of preparing a special sulfate cementing material through treatment on electrolytic manganese residues in a fluidized bed boiler includes the following steps: 1) material preparation: metering and preparing following raw materials comprising, by weight, 45-80 parts of the electrolytic manganese residues, 8-25 parts of stone coal and 10-45 parts of waste stone residue; (2) preparation of matured slag: continuously feeding the weighed and prepared raw materials into the fluidized bed boiler, roasting the raw materials under an oxidizing atmosphere at 800-1280 DEG C for 0.3-1.5 h with overflow rapid-cooling at a material outlet to obtain the matured slag; and (3) preparation of the special sulfate cementing material: grinding the matured slag until sieve residue mass of the matured slag is not more than 20% through a 80 [mu]m sieve to obtain the special sulfate cementing material. According to the method, the special sulfate cementing material contains various hydrated active minerals, so that the material can be widely used in cement industry, is high in strength during use, and has an excellent strength when being used as activated slag powder or for producing building materials. The method is less in investment, is free of waste water and waste residue and is good in economy.