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226results about How to "Good consolidation" patented technology

Agglomeration method for iron containing dust slime of iron and steel plants

ActiveCN103114201AVarious ingredientsPoor hydrophilicityBriquetteIron ore
The invention discloses an agglomeration method for iron containing dust slime of iron and steel plants; according to the method, the iron containing dust slime is shunted independently, is briquetted, is mixed with other iron ore powder, flux and coke powder, and then is sintered on the basis of the traditional technology. The agglomeration method comprises the following detailed steps of: 1), firstly, mixing the iron containing dust slime with composite binder, mixing uniformly, briquetting, so as to obtain dust slime briquette; 2), mixing the dust slime briquette with other iron ore powder, flux and coke powder, pelletizing, so as to obtain sintered mixture material; and 3), distributing the sintered mixture material by adopting the existing sintering method, igniting, sintering, cooling, granulating, finally the finished product of sintered ore is obtained. Compared with the traditional method of directly returning, sintering and mixing the dust slime, by adopting the agglomeration method, the ratio of the iron containing dust slime in the mixture material is greatly improved, and in addition, the sintered product quality index is improved. By adopting the agglomeration method, the problem on large-scale use of the iron containing dust slime of iron and steel plants is effectively solved, and the agglomeration method is beneficial for industrial production.
Owner:CENT SOUTH UNIV

A method of microwave firing porous ceramsite from medical waste incineration fly ash

The invention discloses a method for microwave sintering of porous ceramsites by adopting medical waste incineration fly ash. The method comprises the following steps: (1) fully mixing the medical waste incineration fly ash with an auxiliary material, adding a small amount of water into the mixture, and carrying out granulation molding by a molding machine; (2) carrying out granulation molding, drying to obtain a particle raw material, filling the periphery of the particle raw material with a microwave coupling agent powder; and (3) carrying out microwave sintering of the particle raw material filled with the powder, and after sintering, cooling to the room temperature to obtain the porous ceramsites. The method can utilize a 'hot spot' effect of fly ash high-content active carbon in a microwave field to instantly completely decompose dioxins in the fly ash, at the same time, allows most heavy metals to be wrapped and cured in grids of the sintered product, and rapidly sinters the fly ash into the porous ceramsites; and the ceramsites can be used for building aggregates or wastewater filter materials, achieves further resource utilization while achieving harmlessness treatment of the medical waste incineration fly ash, and achieves many things at one stroke.
Owner:TIANJIN CHENGJIAN UNIV

Concrete explosion-proof wall with embedded steel framework

The invention relates to concrete explosion-proof wall with an embedded steel framework. The wall comprises a wall body (1) and a foundation (2), wherein the foundation (2) together with the wall body (1) are integrally cast with concrete, and a steel framework is embedded between the wall body (1) and the foundation (2). The wall is characterized in that the steel framework consists of two side vertical columns (4), a plurality of transverse beams and an embedded steel piece (3) of the foundation (2), wherein the two ends of each transverse beam are respectively, horizontally and fixedly connected with the two side vertical columns (4) according to different elevations, each vertical column (4) is made of H-shaped steel, the surface direction of an H-shaped steel wing flange (16) is consistent with the length direction of the wall body (1), each transverse beam is made of T-shaped steel, the embedded steel piece (3) of the foundation (2) is fixedly connected with the lower side of the bottom transverse beam (5), the upper side of each transverse beam is provided with a plurality of screw rod holes (15), a screw rod (8) penetrates through each screw rod hole (15), the top part of each screw rod (8) is fixedly connected with the top transverse beam (7), and the bottom of each screw rod (8) is fixedly connected with the embedded steel piece (3).
Owner:SOUTHWEAT UNIV OF SCI & TECH

Construction method for back cavity of tunnel lining and constructed composite lining structure

PendingCN107387095AEnsure safetyReduce crystallization attackUnderground chambersTunnel liningFoam concreteLandslide
The invention relates to a construction method for a back cavity of a tunnel lining and a constructed composite lining structure. The construction method comprises the following steps: drilling a grouting hole in the surface of a lining; mounting a grouting tube in the grouting hole; filling the cavity on the back of the lining with foam concrete through the grouting tube to form a buffer layer; filling cavities or a large landslide section or other road sections; closing and compacting the grouting tube by using waterproof mortar, and enabling the surface of the grouting tube to be level and parallel to the lining. According to the composite lining structure formed after construction, the grouting hole is formed in the lining, the grouting tube is arranged in the grouting hole, the length of a part, which enters the cavity, of the grouting tube is 1-4 m, the grouting hole and the grouting tube are hermetically combined in a sleeving manner, the outer side of the lining is a foam concrete layer, and a waterproof mortar column is arranged in the grouting tube. By the construction method, impact of stones falling from the top of the cavity to the lining is reduced effectively, and the safety of the lining structure is guaranteed.
Owner:CHINA RAILWAY SHISIJU GROUP CORP

Rice seedling machine seedling planting diaphragm and manufacture method of rice seedling machine seedling planting diaphragm

The invention discloses a rice seedling machine seedling planting diaphragm and a manufacture method of the rice seedling machine seedling planting diaphragm. By aiming at the problems that the seedling root winding effect in the rice seedling machine seedling planting is poor, the seedlings can easily get scattered, and the operation is complicated, the invention provides the rice seedling machine seedling planting hemp-base diaphragm, which consists of a hemp fiber diaphragm substrate and rice seeds fixedly carried on the substrate. The hemp fiber raw materials are subjected to loosening, scattering and mechanical stretching to form a net, then, biodegradable bonding agents are adopted for bonding, baking is carried out, the hemp fiber diaphragm substrate is formed, and next, the rice seeds are uniformly scattered and pasted on the hemp fiber diaphragm substrate through the biodegradable bonding agents. When the rice seedling machine seedling planting hemp-base diaphragm provided by the invention is adopted, the seedling culture operation can be greatly simplified, farmers can realize the seedling culture without seeding, in addition, the seedling root system winding effect can be obviously promoted, the winding force is improved, seedlings conforming to the machine seeding requirements are formed, meanwhile, because the seedling quality is improved, the green returning speed of the seedlings after the machine seedling planting is high, the tillering effect is good, the rice yield is obviously improved, and good economic benefits are realized.
Owner:INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI

High-pressure water-rich goaf grouting reinforcement method

Disclosed is a high-pressure water-rich goaf grouting reinforcement method. Through the high-pressure water-rich goaf grouting reinforcement method, many defects of existing goaf grouting reinforcement methods are overcome, so that high-pressure water-rich goaf grouting reinforcement construction is feasible and fast, and the construction cost is saved. According to the high-pressure water-rich goaf grouting reinforcement method, artificial explosion is used for forming goaf top plate caving zones, high-pressure grouting is adopted in the caving zones under the action of high-pressure water on the two sides for forming curtain reinforcement bodies, and the problem that curtains are difficult to be formed by grouting liquid in a high-pressure water-rich goaf is solved. Grouting reinforcement is started from the periphery to the inside of a goaf reinforcement area, the pressure influence of high-pressure water on the periphery of the goaf reinforcement area and non-section supplement of a water source can be reduced gradually, grouting holes are used for water pumping and drainage so that the pressure of the high-pressure water in the goaf can be reduced, thus the condition that each grouting hole adopts high pressure grouting can be avoided, meanwhile, deposition and solidification of the grouting liquid are facilitated, accordingly, the construction time is saved, and the construction cost is reduced.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD

Gravel pile and plain concrete pile combined composite foundation

The invention discloses a gravel pile and plain concrete pile combined composite foundation. Gravel piles and plain concrete piles are alternately arranged in a field needing to be treated, gravel cushion layers are paved at the tops of the piles, and the length ratio of the gravel piles to the plain concrete pile is 1:2. The gravel piles can effectively compact earth among the piles to solve the problem of uncompleted concretion of new fill stratums and can form drainage channels to achieve the effects of replacing and forming the drainage channels, and meanwhile, foundation liquefaction can be further eliminated by compaction vibration during construction of the gravel piles. The gravel piles, the plain concrete piles and an original natural foundation jointly form the combined composite foundation, and effects of compacting soil mass, replacing and forming the drainage channels, eliminating liquefaction and benefiting soil mass concretion are achieved while bearing capacity can be greatly improved and soil compressibility of the foundation is lowered. The gravel piles and the plain concrete piles are combined, disadvantages are avoided while advantages are complemented, treatment effects are guaranteed while the requirements of a superstructure are met, and effects of capital saving and project period shortening are further achieved.
Owner:SOUTHWESTERN ARCHITECTURAL DESIGN INST
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