39results about How to "Avoid mining" patented technology

The invention discloses a travertine-like arabesquitic vat. The forming material of the travertine-like arabesquitic vat mainly comprises a solid material, a blended solution and staple, wherein the solid material comprises the following components in percentage by weight: 30-45% of rapid-hardening sulphoaluminate cement, 45-65% of fine river sand, 1-3% of titanium dioxide, 1-3% of yellow powder and 0.01-0.15% of red powder; the blended solution comprises the following components in percentage by weight: 99-99.9% of water and 0.01-0.1% of polyacrylamide; and the staple is glass fiber of which the length is 5-10cm. The invention also discloses a production technology for the travertine-like arabesquitic vat, which comprises the following steps of: burdening, mixing, cleaning a mold, installing a material mold, installing the staple, demolding, nursing, trimming, repairing, brushing to be smooth, applying a surface coating and the like. The travertine-like arabesquitic vat disclosed by the invention has the advantages of clear and natural texture, good product intensity, light weight, hard surface layer, abrasion resistance, small possibility of delaminating and falling powder, low cost and good decoration effect, is convenient to produce on a large scale and is easy for stable control of product chromatic aberration, natural travertine in the natural world can be prevented from being mined on a large scale, and mine waste can be utilized to protect the ecological environment.

Dried fruit has a coating of microcrystalline cellulose in an amount effective to prevent agglomeration of the dried fruit. Methods of preparing and using the coated dried fruit are also described. The dried fruit pieces of the present invention are less sticky and are readily separated from one another using ordinary gravity feed handling conditions.

A method for rapidly acquiring multi-field response of mining-induced coal rock is provided. Based on 3D printing, the method achieves the control of material deformation and turns from 3D to 4D, thus saving manpower and material resources; further, repeated experiments may still be carried out under approximately the same conditions after each printing, so that the similarity of similarity simulations is greatly improved and a stable and reliable scientific law is conveniently obtained; besides, a BP neural network model may be built based on the data collected from similarity simulations to rapidly acquire an accurate and real coal seam mining response.

The invention discloses a flower vat imitating travertine. The molding material is mainly composed of solid materials, blending solution and short fibers. The weight percentage of the solid materials: 30-45% rapid hardening sulfoaluminate cement, 65% fine river sand, 1-3% titanium dioxide, 1-3% yellow powder, 0.01-0.15% red powder; the weight percentage of the blended solution: 99-99.9% water, 0.01-0.1% polyacrylamide; The staple fibers described above: glass fibers with a length of 5 to 10 cm; the present invention also discloses a process for producing the above-mentioned imitation travertine flower vats, including batching, mixing, mold cleaning, feeding molds, upper staple fibers, and demoulding. , Maintenance, trimming, repairing, brushing, surface coating and other steps. The imitation travertine flower vat of the present invention has clear and natural texture, good product strength, light weight, hard surface, wear-resistant, not easy to delaminate and powder, convenient for mass production, low cost, easy to control product color difference stably, The decorative effect is good, and at the same time, it can avoid a large amount of mining of natural travertine in nature, and can digest mine waste to protect the ecological environment.

The invention provides a Chinese yam planting device facilitating harvesting. The Chinese yam planting device comprises a box body, the box body is divided into a plurality of planting cavities and growth cavities, the planting cavities are located above the growth cavities and communicate with the growth cavities through circular holes in a box body structure, stem block fixing mechanisms are arranged at joints of the planting cavities and the circular holes, and a climbing frame is fixed to the top of the box body. Guide ropes are arranged on the two sides of the climbing frame and connectedto the outer sides of the planting cavities, side frames are arranged in the growth cavities, the side frames are hinged to the side face of the box body through hinge assemblies at the bottom, and collecting barrels are arranged in the side frames and located under the stem block fixing mechanisms. Through the collecting barrels and cutting mechanisms, integrity of collected Chinese yams is guaranteed, damage is reduced, excavation is not needed, time and labor are saved, meanwhile, the remaining Chinese yams can be directly used for planting of the next season after being disinfected, repeated excavation of ditches for planting the Chinese yams is not needed, a large amount of labor is saved, the labor intensity is reduced, and good development prospects are achieved.

The invention belongs to the field of foundation pit dewatering excavation construction, and particularly relates to a foundation pit dewatering construction method in a stratum containing a laminar flow supply source. According to the method, a foundation pit is excavated in a layered mode, and when an aquifer is excavated, the aquifer is divided into two or more excavation sections for dewatering and excavation; according to the stratum water replenishing speed of each excavation section, the following modes are adopted for dewatering the corresponding excavation section: (1) firstly, tube well pre-dewatering is adopted, and then water collection pit open drainage continues to drain water for dewatering; in the second mode, tube well pre-precipitation is adopted firstly, before tube well pre-precipitation is finished, water collecting pit open drainage is adopted for collaborative precipitation, and after collaborative setting time is finished, water collecting pit open drainage is adopted for precipitation; (3) tube well pre-precipitation is adopted firstly, before tube well pre-precipitation is finished, water collection pit open drainage collaborative precipitation is adopted, and tube well precipitation at least lasts until excavation of the excavation section is completed; and the stratum water replenishing speeds of the excavation sections corresponding to the mode 1, the mode 2 and the mode 3 are sequentially increased, and low-cost and environment-friendly rainfall in the construction period is achieved.

The invention discloses a compression-resistant and carbonation-resistant recycled concrete and a preparation method thereof, belonging to the technical field of concrete. Concrete raw materials include 250-290 parts of cement, 55-70 parts of silica fume, 30-45 parts of fly ash, 1050-1120 parts of modified recycled coarse aggregate, 700-730 parts of sand, and 10-15 parts of redispersible latex powder 3-5 parts of water reducing agent, 140-160 parts of water. Preparation of modified recycled coarse aggregate: 100 parts of water glass with a mass concentration of 5%, 20-30 parts of diatomaceous earth, 10-20 parts of zeolite powder, 8-15 parts of colloidal graphite powder, 1-15 parts of silane coupling agent Mix 3 parts evenly to obtain aggregate modification solution, soak the recycled coarse aggregate raw material in it, drain, and roast at 180-200°C for 1-2h. Preparation of concrete: Prepare modified recycled coarse aggregate; mix cement, sand, redispersible latex powder, and water evenly, add modified recycled coarse aggregate and mix evenly, add water reducing agent, silica fume and fly ash and mix evenly . All the concrete of the invention adopts the modified recycled coarse aggregate as the coarse aggregate, and the final prepared concrete has the characteristics of compression resistance and carbonation resistance.

The invention relates to a production method of cement clinker, in particular to a low-cost production method of cement clinker. The ratio of raw materials on a dry basis used in the present invention is 79.89 to 82.47 parts of limestone, 3.11 to 5.4 parts of wet ash, 2.13 to 7.47 parts of Yellow River silt, 2.86 to 4.42 parts of converter slag, 2.81 to 6.17 parts of iron tailings, and 1.24 to 2.31 parts of sandstone. share. By making full use of waste such as Yellow River silt, converter slag, and wet ash discharged from power plants, the cost of raw materials has been reduced from an average of 19.75 yuan / ton of clinker to an average of 17.41-18.13 yuan / ton of clinker; a decrease of 1.62-2.34 yuan / ton of clinker; The wear rate of the machine can save 285,000 yuan per year for the raw material grinding roller skin and disk welding repair wire; the working efficiency of the raw material grinding table can be increased by 20 tons / hour; the annual estimated cost savings is nearly 10 million yuan.

The disclosure column of the present invention is a green, low-carbon and environment-friendly road structure using recycled materials, including subgrades and road surfaces arranged sequentially from bottom to top, subgrades including embankments and road beds arranged sequentially from bottom to top, and embankments are regenerated from urban construction waste The road bed is made of recycled graded mixture of urban construction waste; the pavement includes a cushion, subbase, base, lower layer, middle surface and upper layer arranged in sequence from bottom to top, and the cushion is made of Made from recycled graded aggregates from construction waste. The invention can not only ensure the needs of the current traffic development, but also solve the environmental problems left over from the urban development and the problems that the basic engineering construction destroys the exploitation of natural resources.

The composite stone material is produced with the material including cementing material 35-45 wt%, filler 55-65 wt%, additive 1-5 wt% and proper amount of pigment. The production process of the composite stone material includes the steps of compounding material, mixing, distributing material, heating, demolding, curing, cutting, air drying, repairing, permeating glue, polishing, etc. The composite stone material of the present invention has clear and regular grains capable of being customized, beautiful appearance and environment friendship.

The invention relates to the field of dredging, in particular to the field of mud dumping and diking in the dredging field. A mud dumping and diking boat comprises a mud dumping boat, a mud transporting dolly, a dolly running truss and a supporting truss, wherein the dolly running truss is fixedly connected with the bow of the mud dumping boat; the supporting truss is arranged at the stern of themud dumping boat; a connecting truss is connected between the dolly running truss and the supporting truss; the included angle between the dolly running truss and the horizontal plane is 3-8 DEG; a leading sheave is respectively arranged at two ends of the dolly running truss; a first steel wire rope is connected between the leading sheaves and the mud transporting dolly; a winch is arranged on the mud dumping boat; and a second steel wire rope is connected between the winch and the mud transporting dolly. The mud dumping and diking boat provided by the invention has the advantages of little used equipment, simpleness and safety in diking and low cost.

The invention provides a carrier for loading precipitates, a preparation method of the carrier and a method for loading flocculent precipitates. The carrier comprises an inner core and an outer core, the adsorption layer coats the periphery of the inner core, and the adsorption layer is made of a porous adsorption material; the inner core comprises a plurality of prefabricated particles which are particulate matters composed of waste gas recovery powder; and the auxiliary agent is filled in gaps among the plurality of prefabricated particles, the plurality of prefabricated particles are bonded together to form the inner core, and the carrier for loading the precipitates, the preparation method of the carrier and the method for loading the flocculent precipitates have the advantages of economy and high efficiency.

The invention relates to high-strength concrete prepared from low-grade magnesite. The high-strength concrete comprises the following raw materials of: in parts by weight, 1017-1123 parts of magnesitewith particle size of not less than 2 mm and not more than 25 mm, 663-731 parts of sand, 467-515 parts of cement with the label of 42.5, 143-157 parts of water, 3.8-4.2 parts of polycarboxylate superplasticizer and 36.1-39.9 parts of silicon powder, and the prepared high-strength concrete has a strength grade of C60 or above. The prepared high-strength concrete has the strength grade of C60 or above and stable performance, so that magnesium ore resources are fully utilized, excessive mining of stones is avoided, and environmental protection and reduction of production cost are facilitated.

An adhesive patch for external use which is significantly inhibited from causing a rash, is less irritative to the skin, and sufficiently retains adhesion to the skin. The adhesive patch is characterized by employing a pressure-sensitive adhesive base into which a sucrose fatty acid ester has been incorporated. It does not exert physical influences on the skin, such as stresses imposed on the skin during wear and upon peeling, while sufficiently retaining adhesion to the skin. It is significantly inhibited from causing a rash, and the skin irritation thereof has been minimized. This adhesive patch for external use has ideal, lowly irritative properties which have been impossible to any conventional adhesive patch for external use.

The embodiment of the invention discloses an environment-friendly food material edge-wrapped honeycomb and a production and boxing method. The honeycomb includes a bottom support plate and through holes arranged on the four corners of the bottom support plate. A support is fixedly installed in each through hole. Vertical rods, the inside of the supporting vertical rods are provided with vertical through holes, and there is a food material wrapping board between two adjacent support vertical rods, and several layers of protective films are wrapped on the outside of the food material side boards; the production box The specific method is as follows: put the food-wrapped honeycomb into the beehive, and the bees make a nest in the food-wrapped honeycomb to produce honey; the food-wrapped board is waxed to form a beeswax honeycomb; After taking out the edge honeycomb, drive out the bees, and directly put the edge honeycomb into the packaging box; the edible material is used as the edge wrapping design around the honeycomb, so that the honeycomb can be directly sent to the mouth for consumption, and at the same time prevent the honeycomb from being in the mouth. In case of damage and leakage of honey during transportation.

The invention discloses a nutrient solution matrix-free seedling raising and cultivating system and a seedling raising method. The system comprises a nutrient solution seedling raising tank, a seedling grid plate, seeding paper and covering paper, wherein the nutrient solution seedling raising tank is filled with water or nutrient solution; the seedling raising grid plate is arranged on the nutrient solution seedling raising tank, and water through holes are formed on the side faces of the grid plate holes of the seedling raising grid plate; the seeding paper is laid on the seedling raising grid plate; and after seeding, the covering paper is covered on the seeding paper bearing seeds. The method comprises: sowing seeds on the seeding paper, covering the covering paper with high water absorbing performance and breathability and covering the perlite or vermiculite on the covering paper; and after the seeds germinate, the roots of the seedlings penetrate the seeding paper to grow downward to absorb water and nutrients from the nutrient solution below. When the system is used, a matrix which is adopted by the conventional industrial seeding raising technique is not used, the overall accurate control over the temperature, water, nutrient and oxygen required by plants for growth in the whole seedling raising process is realized, the industrialization of the seedling raising processis realized, and the uniformity, strong seedling rate and robust degree of the seedlings are improved.