Abstract: The invention relates to a kitchen wastes disposing system comprising a wet solid material crusher connected on a sewer, wherein the crusher includes an automatic switch controlled by water flow in the sewer and a hand switch, wherein the two switches are connected in series, the sewer is connected with a sewage disposing system, wherein the crusher includes a shell, an upper blade set, a lower blade set and a rotating shaft, wherein the upper blade set and the lower blade set are fixed the rotating shaft and in the shell, wherein the upper blade set and the lower blade set includes a plurality of horizontal blades. The system can crush the kitchen solid waste and other similar solid wastes and send them into the sewage disposing system together with the sewage, thereby simplifying the procedure and reducing the cost or disposing solid wastes.

Abstract: The invention relates to a building board made of municipal refuse and agricultural plant wastes and manufacturing method thereof. The principal raw materials of the board include 200 parts of lightly-burned magnesium powder, 40 to 75 parts of magnesium chloride solution of 28 to 32 Baume degrees, 1 to 2 parts of 36-38% industrial hydrochloric acid, 80 to 120 parts of mineral materials originated from municipal refuse, 20 to 30 parts of agricultural plant wastes, and 50 to 80 parts of fly ash. The manufacturing method of the board includes preparing raw materials, preparing slurry, shaping and curing naturally. The invention uses huge amounts of mineral materials in municipal refuse and agricultural plant wastes as raw materials to making building board, and thereby realizing a recycling of these waste materials.

Abstract: This invention relates to a method which turns construction wastes into building materials said method separating construction wastes into heavy materials, light materials and mineral materials by sorting, magnetic separating, primarily crushing and separating by gravity, said mineral materials to be used as raw materials of building material, said building materials comprising fibrous material of 5-10 portions, said mineral material of 40-60 portions, low-water cement of 20-30 portions and other materials of 0-30 portions. This method makes good use of mineral materials, the main part of construction waste to save material resource and to reduce final discharge amount of construction waste.

Abstract: The invention relates to a kind of fly ash heat preservation board. It is made of mixed foam slurry and stuff solid in the mould. Main materials of the stuff include light burring magnesium powder, magnesium chloride solution, fly ash, oxalic acid and glass fiber. Proportion of main materials of the above-mentioned stuff is: fly ash 200 portions, light burning magnesium powder 100-150 portions, oxalic acid 1-2 portions, glass fiber 5-15 portions. Wherein said magnesium chloride is 28-32 Degree Baum'e magnesium chloride water solution, the addition quantity is 40-75 portions. Wherein said vesicant is animal protein vesicant, foam diameter should be controlled between 0.1˜1 mm, it can be maintained naturally after being mounded. The invention improve anti-pressure intensity of board, which benefits for increasing foam quantity, lowing board density and improving heat preservation performance.

Abstract: This invention relates to a method of disposing city refuses comprising following steps: (1) primary classification, in which the materials which can be independently disposed are separated from the city refuses; (2) first crushing; (3) first separating, in which the refuses is divided into two classes of heavy materials made of minerals mainly and slight materials made of organics mainly; (4) crushing of heavy materials; (5) magnetic separating of heavy materials, in which the heavy material is divided into two classes of magnetic heavy materials and non-magnetic heavy materials; and (6) crushing of slight materials. The method recycles most of the city refuses as reusable materials.

Abstract: The invention relates to A building board comprising a base course and a surface course, wherein the surface course is combined at the outer surface of the base course, wherein the base course made from a composition which comprises raw materials of light burning magnesium powder, magnesium chloride solution, mineral powder originated from city refuse, glass fiber, shale and hydrochloric acid, the surface course made from a composition which comprises raw materials of light burning magnesium powder, magnesium chloride solution, quartz powder and hydrochloric acid. The invention changes part of materials in city refuse into useful resource so as to protect the environment and increase the economic benefit.