46results about How to "Less investment in building a factory" patented technology

The invention discloses a producing method for preparing lithium carbonate by taking carbonate type brine and sulphate type brine as raw material and by repeatedly mixing brine. Firstly carbonate type brine and sulphate type brine are mixed for performing the first brine mixing, so as to ensure that CO3<2-> ion and Mg<2+> ion in the mixed brine are completely reacted to produce basic magnesium carbonate, brine is evaporated and concentrated, and solid and liquid are separated, so that basic magnesium carbonate precipitate is removed, and lithium enrichment brine is obtained; and then the lithium enrichment brine and carbonate type brine, the lithium ion concentration of which is evaporated and concentrated to be saturated or nearly saturated, are mixed for performing second brine mixing, so that Li+ ion in the mixed brine produces lithium carbonate, solid and liquid are separated, lithium carbonate precipitate is removed, and the lithium carbonate precipitate is washed with hot water and dried, so that lithium carbonate products are obtained. Besides electricity, the method basically does not require foreign material, the investment is less, the technology is simple, the method can be applied to the mass production of lithium carbonate, the acquisition rate is high, the product quality meets the national standard, and the method is particularly suitable for the development of lithium resources of saline lake in Tibet.

The invention relates to an airflow classifying and airflow drying process for coking coal. In the process, coke oven flue waste gas is taken as a drying medium, the fluidization technology is adopted for drying the coal, and simultaneously the coal is classified into several classes according to particle sizes by an airflow separation principle. A device consists of a vibrating fluidized bed main body and a classifying collection device, wherein the vibrating fluidized bed main body comprises a primary air supply device, a vibrating main box body with an air distributing plate, a sedimentation classifying section and a drying section with a secondary air inlet; and the classifying collection device completes the final collection of small-particle materials through a group of dust collection devices or several groups of duct collection devices with different structures according to different requirements of the process on the classification of the particle sizes. The airflow classifying and airflow drying process has the advantages that: energy is saved, the wastewater generated in the coking process is reduced, the environmental pollution is lightened and the production capacity of the coke oven can be improved.

A technology for producing the steam-cured lime-sand bricks uses the volcanic ash material or granular slags of blast furnace (8-15 wt. portions), calcium lime (6-10) and sand (75-85) as raw materials, and includes such steps as ball grinding the volcanic ash material or granular slags and calcium lime, mixing with sand and water, and steam curing at 80-100 deg.c and with relative humidity greater than 95% for 8-24 hr. Its advantages are low cost, saving energy and environmental protection.

The invention discloses a heat accumulation and heat slow-release composite floor module, which comprises a heat insulation soleplate and a bamboo-based floor surface layer. Battens are arranged between the heat insulation soleplate and the bamboo-based floor surface layer and on the two sides of the module respectively and are provided with connecting structures for connecting with the adjacent modules; the two ends of the module are provided with an end plate positioned between the heat insulation soleplate and the bamboo-based floor surface layer respectively; a through circular bamboo tube is arranged between the heat insulation soleplate and the bamboo-based floor surface layer, and the two ends of the circular bamboo tube are arranged in corresponding circular holes of the two end plates respectively; and a phase-change heat accumulation material is also filled between the heat insulation soleplate and the bamboo-based floor surface layer. The heat accumulation and heat slow-release composite floor module can make use of hot air converted from solar energy and uniformly supply heat to a room, belongs to clear, environmentally-friendly, energy-saving and carbon-free technology, has the characteristics of little thermal loss, high thermal efficiency, convenient standardization, storage, transportation, mounting and use due to a modular design, simple production process and low factory building cost, and also can make full use of bamboo resources.

The invention relates to a method for preparing light building material ceramic particle by utilizing slate sawn mud. The product formula includes: 60-100% of slate sawn mud (containing 30% of moisture) and 0-40% of slate dry powder; and 1-2% of sodium silicate binder is additionally doped. The manufacturing processing step includes that the slate sawn mud is filtered until moisture is less than 30%, the slate sawn mud and powder material obtained by sieving crushed slate are pre-stirred into bulk particles in a dual spindle stirring machine, so as to form cue ball, when the moisture contained in the slate sawn mud is less than 15%, the slate sawn mud also can be independently stirred and broken into particles in the stirring machine, then the cue ball is fed into a ball forming mill to be sprayed with mist water, and a small amount of binder is added, so that the particle forms a spherical particle with the diameter Phi of 5-30mm by rolling, then the material ball is fed into a rotary kiln to be calcined, the calcining temperature is 1100-1200 DEG C, and calcining time is 25-40min, and the fiery material ball taken out from the kiln is cooled by adopting a monocular cooling machine. The method has simple production technology and low cost, and the prepared slate sawn mud ceramic particle has high tube pressure strength and wide application.

The invention discloses a method for preparing a porous ceramsite filter material from slate saw mud. According to a formula, a product prepared by the method comprises the following raw materials in percentage by mass: 60 to 80 percent of slate saw mud (a dry basis), 15 to 30 percent of dry slate powder and 5 to 10 percent of kieselguhr, wherein the raw materials are mixed and stirred into spherical particles, then calcined and cooled to obtain the product. The method has the advantages of simple process and low production cost, and has great significance to resource cycling and environmental protection.

The present invention relates to energy source technology, and is especially process of preparing diesel oil substitute with domestic garbage and coal. The present invention features that the material consists of domestic garbage 25-45 wt%, coal 15-35 wt%, solvent 30 wt%, assistant 5 wt% and catalyst 5 wt%. The coal is lignite, subbituminous coal, oil shale or turf; the solvent is anthracene oil in the initial operation stage and the 340-380 deg.c distillate oil after the equipment is in continuous operation; the assistant is methanol and the catalyst is industrial hydrochloric acid. Pre-treated garbage and coal as well as other materials are first mixed through stirring for 10-15 min, then reacted at 340-460 deg.c and 5.5-7.5 MPa for 30-70 min and finally distilled to obtain the 340 deg.c below distillate oil as the coarse diesel oil. The coarse diesel oil is blended with amyl nitrate to obtain the diesel oil substitute.

It relates to an automatic continuous doughmaker. The doughmaker which is used for processing flour dough. It comprises: upright dough mixer, main material box, auxiliary material box, the upright dough mixer, electromotor and feeding member, the gearing system and speed control eletromotor installing on the base, helical conveyers on bottoms of main material box and auxiliary material box, the feed inlet at the lower part of the upright dough mixer linked with main material feed conveyer, the feed outlet of the auxiliary material box communicating with the main material box, the water inlet in the lower part of the upright dough mixer, the feed outlet of dough mixer in the upper part, the main shaft of upright dough mixer driven by driving electromotor, helical feed conveyers of main material and auxiliary material driven by the speed control eletromotor, providing material for the next process in the noodle production line.

The invention relates to a magnetic ore dry separation and screening concentrated sorting system which comprises a medium crushing ore storage bin feeding movable sealing-tape machine I, a medium crushing ore storage bin, a medium crushing machine feeding belt conveyor II and a medium crushing machine. The magnetic ore dry separation and screening concentrated sorting system is characterized in that a medium crushing ore discharge sealing-tape machine is arranged at the lower portion of the medium crushing machine, the medium crushing ore discharge sealing-tape machine is connected with the ore feeding end of a movable sealing-tape machine III with an unloading trolley, a dry separation and screening unified preselection ore storage bin is arranged below the movable sealing-tape machine III with the unloading trolley, ore fine dry separation machines are correspondingly arranged below the dry separation and screening unified preselection ore storage bin, and a dry separation classification vibrating screen is correspondingly arranged below each ore fine dry separation machine. The magnetic ore dry separation and screening concentrated sorting system has the beneficial effects that system arrangement is compact, waste ore can be removed to the maximum degree before ore grinding, the feeding grade is improved, energy saving and cost reducing of an ore treatment plant are achieved, and the ore separation cost is reduced.

The automatic flour mixing machine for mixing flour and water to make dough in noodle producing line consists of vertical mixing mechanism, main material bin, driving motor and feeding mechanism driving system mounted on a chassis. The main material bin, spiral feeder and the vertical mixing mechanism are connected together; and on the main shaft of the vertical mixing mechanism, there are spiral material raising and conveying unit and spiral material stirring and raising blades. The vertical mixing mechanism is provided with material inlet in the lower part and dough discharging port in the upper part to provide dough to the next step in noodle production. Using the automatic flour mixing machine can realize the planar arrangement of the noodle producing line and raise the efficiency of the noodle producing line.