1489results about How to "Achieve the goal of energy saving and emission reduction" patented technology

The invention relates to iron coke for a blast furnace and a preparing method thereof. The iron coke comprises 5wt%-20wt% of iron ore powder and 80wt%-95wt% of mixed coal; the mixed coal is formed by mixing 25wt%-29wt% of one third of coking coal, 40wt%-44wt% of coking coal, 7wt%-11wt% of lean coal, 6wt%-10wt% of gas-fat coal and 12wt%-16wt% of fat coal; the iron ore powder and the mixed coal are mixed uniformly with water and tamped before entering the blast furnace, and are placed into the blast furnace when the temperature is 800 DEG C, the temperature is increased at the speed of 2 DEG C per minute to 3 DEG C per minute, the iron ore powder and the mixed coal are discharged from the blast furnace when the temperature is 950-1050 DEG C, and the iron coke is obtained by adopting a wet way of quenching the coke. According to the iron coke and the preparing method, the performance, the ratio, the particle size and the composition and the like of the iron ore powder and the mixed coal are optimized, and the strength and the reactivity of the iron coke can meet the requirement of the blast furnace process under the circumstance of not adding binding agents.

The invention relates to a formula and preparation method of a national flag bright red glazed brick. On the basis of not changing the existing glazed brick production technique too much, the invention mainly adjusts and optimizes the composition of blank materials, the composition of base / cover coating fused blocks, the preference and proportion of the fused blocks having different properties in base / cover coating, the processing technique of the cover coating, the formula composition of the base coating, the water absorptivity of a biscuit, the firing temperature and the like, thereby ensuring that the fired national flag bright red glazed brick has a dazzlingly beautiful glaze color, is bright like a reflective mirror, and has a high decorative effect and an artistic aesthetic effect; and the color is as pure as the color of a national flag and is glossy and bright, so that the national flag bright red glazed brick can shine like the rising sun. Meanwhile, the technology has high universality, and is readily popularized in the industry.

The invention provides an alcohol-free concentrated fountain solution and a preparation method thereof. The alcohol-free concentrated fountain solution is prepared from the following components based on 100 parts by weight: 0.5-5 parts of low-foam wetting agent, 8-20 parts of pH value regulator, 3-20 parts of printing plate protective agent, 5-10 parts of a water film regulator, 0.2-1.0 part of decontamination intensifier, 0.1-1.0 part of bactericide, 0.1-1.2 parts of defoamer and the balance of water. The concentrated fountain solution provided by the invention is environmentally-friendly, provides guarantee for the health of workers, and can improve the quality of the printing products.

The invention discloses an energy-saving and emission-reduction method for a production line of PVC artificial leather, comprising the following steps: mixing and grinding high-temperature chemical foamer with low-temperature chemical foamer, or the high-temperature chemical foamer with a foaming accelerant, or the high-temperature chemical foamer, the low-temperature chemical foamer and the foaming accelerant; then mixing with PVC resin, a thermal stabilizing agent, a plasticizing agent and filling material and stirring; and then gelling, plasticating, pressing, rolling, jointing with base cloth to form adhesive tape; putting the formed adhesive tape into a foaming furnace; foaming for 0.5 to 1.5 minutes at the temperature of 185 DEG C to 195 DEG C and decorating the surface to obtain a product. Since the low-temperature foaming or / and direct foaming acceleration of the low-temperature chemical foamer or / and the foaming accelerant is used, the high-temperature chemical foamer begins to foam at lower temperature, thereby reducing the foaming temperature, achieving the purpose of reducing the energy consumption and the harmful gas, especially reducing the emission of the harmful gasand the heat energy produced by the high-temperature volatilization of the plasticizing agent.

The invention relates to a method for treating wastewater and discloses a method for treating wastewater in an automobile manufacturing plant. A method of pretreatment, two-stage physicochemical treatment, biochemical treatment and advanced treatment is adopted to treat wastewater. The method for treating wastewater in the automobile manufacturing plant has little investment, small occupied area and low operating cost and has good integrated treatment effect on industrial wastewater and domestic sewage discharged from the automobile manufacturing plant.

The invention discloses an integrated dispatch stowage system system, which manages and dispatches freight vehicles by utilizing storage stations built on a highway and a computer network information platform and distributes goods at the storage station on the highway directly. The system comprises vehicle-mounted terminals arranged on the freight vehicles, a plurality of goods storage stations built on the highway and an information management device, wherein computer terminals of the freight storage stations send information of the goods needing to be carried to the information management device; and the information management device carries out wireless communication with the vehicle-mounted terminals to know whether the freight vehicles are in no load, carries out matching with the information of the carried goods, and then sends the distribution loading information to the vehicle-mounted terminals so as to carry out dispatch of the freight vehicles. The system not only realizes fast distribution and transportation, effectively reduces empty-loaded rate of transport vehicles and reduces the cost, but also avoids large transport vehicles from entering urban distribution, and reduces the pollution of urban traffic pressure and automobile exhaust on the urban environment.

The invention relates to a system containing a cogeneration unit and a pure condensing steam thermal power unit, comprising the cogeneration unit, the pure condensing steam thermal power unit, an air-conditioner heat pump, an electric energy meter, a radiator, a heat consumed meter and a scheduling control device, wherein the scheduling control device is used for collecting power consumption data detected by the electric energy meter and heating consumption data detected by the heat consumed meter to obtain a scheduling control signal and controlling the running of the cogeneration unit, the pure condensing steam thermal power unit, the air-conditioner heat pump and the radiator. Aiming at energy conservation scheduling during the off-peak period of electric load and energy conservation peak regulation during the low ebb period, the invention performs optimum allocation and control of heating demand and electricity output so as to reduce total energy consumption, thereby achieving the purpose of energy conversation.

The invention discloses a glaze and preparation of an embossment phantom glazed brick. The glaze comprises a ground glaze, a surface glaze and an embossment phantom printing glaze, wherein the ground glaze is prepared from a frit b, zirconium silicate, kaolin, calcined kaolin, potassium feldspar powder, fired talc, aluminum oxide powder, quartz powder, carboxymethyl cellulose, sodium tripolyphosphate and water; the surface glaze is prepared from a frit, the frit b, a frit c, kaolin, carboxymethyl cellulose, sodium tripolyphosphate and water; the embossment phantom printing glaze is prepared from parent glaze powder, zinc oxide, tin oxide, cerium oxide and ceramic adhesive roll-printing oil; the parent glaze powder is prepared from the frit c, kaolin, carboxymethyl cellulose, sodium tripolyphosphate and water. The preparation method comprises the following steps: sequentially applying the ground glaze and the surface glaze on a green brick, then printing the embossment phantom printing glaze, performing inkjet printing, and finally firing to obtain the embossment phantom glazed brick. The product disclosed by the invention has unique decorative effect and visual aesthetic feeling; moreover, each indicator can reach the standard requirements, so that the product has relatively strong universality, and is easily popularized in the industry.

The invention discloses an automatic ironing machine. The automatic ironing machine comprises a bottom table, a body frame fixedly connected to the bottom table, a sealed slide groove fixedly connected into the body frame, a lifting steam spraying device movably connected to the two lateral sides of the body frame, and a steam generation device arranged in the bottom table. The automatic ironing machine further comprises a controller. The automatic ironing machine has the advantages that the automated ironing work is adopted, the labor intensity is greatly lowered, and the work efficiency is improved; a structure formed by combining multiple sets of discrete steam spraying units is adopted for the lifting steam spraying device, corresponding steam spray nozzles can be intelligently selected to conduct steam spraying operation in the ironing process according to the areas of clothes to be ironed, no steam can be sprayed to places without clothes, the energy consumption is greatly lowered, and the aims of energy conservation and emission reduction are achieved.

The invention relates to a heat-storage heat-preserving building block and a manufacturing and installation method. The heat-storage heat-preserving building block comprises a shell, a heat-preserving layer and a heat-storage layer, and is manufactured in a fractional step method or a one-step method: two ends of the building block are provided with a groove; when installing the building block on the construction field, concrete is poured inside the groove to form a bearing structural column, so the building block is independent from the bearing structural column; the wall body built by the building block has compact seam, light weight, high strength and heat storage and preservation, is not only applicable to the building wall body of house, but also is particularly applicable to the building wall body of sunlight green house.

The invention discloses a wireless charging device for unmanned aerial vehicles and an unmanned ship and a combined cruise searching and rescuing method. The device comprises an unmanned ship and a plurality of unmanned aerial vehicles, a plurality of stop loading platforms are arranged on the unmanned ship, and the unmanned aerial vehicles berth and land and take-off through the stop loading platforms; wireless charging units are arranged below the unmanned aerial vehicles, and wireless power supplying units are arranged on the stop loading platforms; and when berthing on the stop loading platforms, the unmanned aerial vehicles are subjected to wireless charging through the wireless charging units and the wireless power supplying units. According to the wireless charging device for the unmanned aerial vehicles and the unmanned ship, the range and the efficiency of cruise searching and rescuing are enhanced greatly through combined cruise searching and rescuing of the unmanned aerial vehicles and the unmanned ship, and therefore a maritime sector can discover abnormal conditions on the sea earlier or search and rescue wrecked ships and overboard personnel earlier; and the cruising ability of the unmanned aerial vehicles is enhanced through adopting the unmanned ship to charge the unmanned aerial vehicles wirelessly, so that the unmanned aerial vehicles can conduct more cruise searching and rescuing operations.

The invention discloses a lead-zinc smelting slag based geopolymer gelling material and a preparation method thereof and belongs to the technical field of geopolymer. The material is composed of, by mass, 65-72 wt.% of lead-zinc smelting slag, 5-10 wt.% of coal ash, 8-15 wt.% of composite alkali activator, 3-6 wt.% of sulfate activator, 1-3 wt.% of aluminate activator and 10-14 wt.5 of deionized water. The preparation method includes: respectively drying and grinding lead-zinc smelting slag and coal ash, and mixing well with a sulfate activator and an aluminate activator before joint grinding to obtain a ball-milled mixture; adding a composite alkali activator solution into the ball-milled mixture, stirring well, forming, and maintaining to obtain the material. The preparation method is simple, low in energy consumption and free of pollution in the preparation process, and geopolymer has good gelling performance, mechanical performance, corrosion resistance, wear resistance and dry shrinkage resistance.

The invention discloses pulverized coal coking equipment and method. The equipment comprises a pulverized coal semi-coking pyrolyzing furnace, wherein the pyrolyzing furnace comprises a furnace charge inlet, a feeding and distributing region, a coal gas collecting region, a coal gas dust filtering zone, a pulverized coal preheating zone, a coal gas dispersing zone, a pulverized coal pyrolyzing region and a cooling coke outlet region from top to bottom respectively. The method is used for coking by using pulverized coal of which the particle size is smaller than 20 millimeters, and comprises distributing, preheating, dust filtering, pulverized coal pyrolyzing, coal gas collecting and coke discharging steps. In the method, pulverized coal of which the particle size is smaller than 20 millimeters is used for coking, pyrolysis of pulverized coal is balanced, coal gas produced by pyrolysis can be discharged successfully, and produced tar oil is clean and free from dust. In the method, ascending hot coal gas is used for preheating pulverized coal, and descending semi-coke is used for preheating cold air and coal gas, so that heat energy is fully utilized, and the aims of saving energy and reducing emission are fulfilled.

The invention relates to an energy-saving environment-friendly sintering waste gas waste-heat utilization and pollutant purification process and system. The energy-saving environment-friendly waste gas waste-heat utilization and pollutant purification process includes that sintering waste gas is divided into a low-temperature low-sulfur sintering waste gas, a middle-temperature high-sulfur sintering waste gas and a high-temperature middle-sulfur sintering waste gas according to waste gas temperature and pollutant discharge characteristics; content of sintering waste gas SO2 of the low-temperature low-sulfur is below the national discharge standard, and the SO2 can be directly discharged after dust removal; after the sintering waste gas in a middle-temperature high-sulfur section is subjected to dust removal and desulfurization processing, the SO2 meets the national discharge standard and can be discharged; the sintering waste gas in a high-temperature middle-sulfur section mixed with ring-cold waste gas is led into a sintering machine, and hot-wind igniting and hot-wind sintering are performed. The invention further provides a system for implementing the energy-saving environment-friendly sintering waste gas waste-heat utilization and pollutant purification process. Waste heat of the sintering waste gas can be recycled in classification and gradiently utilized, so that energy can be saved; the low-sulfur waste gas can be discharged directly, so that desulfurization cost of the waste gas is lowered; part of the high-sulfur waste gas participate in circulation, so that total discharge amount of pollutants is decreased, splitting decomposition of dioxin happens due to high temperature, and the purification function of the sintering waste gas is achieved.

The invention provides a glazed tile prepared from sludge with mirror-effect surface and a preparation method thereof. The method in the invention, on the basis of no great change of conventional glazed tile production process, exerts key points on formula composition of a green body, compositions of ground and cover glaze clinkers, formula compostion of ground glaze, optimization and proportion of cover glaze clinkers with different performances, and adjustment and selection of formula composition of cover glaze, so the prepared glazed tile has surface glossiness of equal to or more than 90; glaze surface is flat and smooth as a mirror, is glossy and lustrous and is free of defects like pinholes and glaze bubbles; printing pattern of a printing glazed tile is completely deposited into the cover glaze with clear texture, bright color and life-like stone-like texture as if a layer of glittering and transparent glass is covered on the printing pattern; if the glazed tile is erected and the glaze surface faces an object, a shadow of the object in the glaze surface is clearly-visible as in the mirror, and has strong integral art sense; meanwhile, the method in the invention adds a great amount of treated compressed sludge and wastewater generated in every operation procedure in ceramic tile production process into the formula of the green body, so cost is saved, and the purposes of energy conservation and emission reduction are achieved at the same time.

The invention relates to a cold rolling waste water advanced treatment reuse system, which comprises a pretreatment process, a biological two-stage treatment process and an electric adsorption desalting treatment process. The pretreatment process comprises a uniformly-adjusting tank, a two-stage pH adjusting groove, a dissolved-air float, a middle pond, a cooling tower, a cooling pond, a plate type heat exchanger and the like. The biological two-stage treatment process comprises a biological contact oxidation pond, an inclined plate settling tank, a membrane biological reaction tank, a reactor, a cleaning box, a suction pump and the like. The electric adsorption desalting treatment process comprises an electric adsorption raw water pool, an electric adsorption moudle, a clean water tank, a reuse water pump, a regeneration pump, a sewage drain pump, an electric adsorption enriched water tank and the like. The cold rolling waste water undergoes the pre-treatment process comprising the uniform aeration adjustment, the two-stage pH adjustment and the dissolved-air flotation, the biological two-stage treatment step provided with the membrane biological reactor for contact oxidation and the electric adsorption deep desalting treatment process, thereby effectively removing pollutants in the cold rolling waste water, reutilizing the cold rolling waste water and achieving the aim of energy conservation and emission reduction.

The invention provides a short-flow pre-treatment process for a pure cotton woven fabric, which belongs to the technology of printing and dyeing pre-treatment of textiles. The short-flow pre-treatment process provided in the invention simplifies the conventional three-step method of desizing, scouring and bleaching into a two-step method, wherein the first step is cold pad batching and the second step is high temperature steaming; the procedures of scouring and bleaching in a conventional processing method for a pure cotton woven fabric are integrated in the short-flow pre-treatment process, no caustic soda is used in the process, and flow of the process comprises singeing, desizing (rolling a gray fabric and stacking the fabric at room temperature), open washing (with 7 open-washing boxes), scouring and bleaching (100 DEG C, 40 to 60 min), open washing (with 5 open-washing boxes) and drying. The invention provides a formula for desizing slurry and a formula for scouring and bleaching liquid to cooperate with the flow; the formula for the desizing slurry comprises 15 to 30 g / l of caustic soda (100%), 3 to 6 g / l of a penetrating agent and 2 to 5 g / l of a scouring agent; the formula for the scouring and bleaching liquid comprises 4 to 10 g / l of hydrogen peroxide (35%), 20 to 30 g / l of solid scouring enzyme, 5 to 8 g / l of water glass 40 degrees Be, 2 to 3 g / l of a scouring agent and 2 to 4 g / l of a complexing agent, and the pH value of the scouring and bleaching liquid is 10.5.

The invention discloses a taxi standing queuing system, which is characterized in that the parking lot is divided into queue area and non-queue area, the queue area is arranged at the exit of a parking lot, a number-generating machine is arranged at the entrance of the parking lot, taxi drivers get number from the number-generating machine and enter the queue area according to the sequence of the number, traffic lights are arranged at the exit of the parking lot, the taxis in the queue area enter a berth of picking up points, the berth of picking up points is equipped with a detecting device for detecting the number of empty berths at the berth of picking up points. The taxi standing queuing system also comprises a dispatching centre, which is used to control the traffic lights and call number according to the berth condition detected by the detecting device. The invention has the advantages that the invention can reduce exhaust emission to reach the purpose of energy conservation and emission reduction, simultaneously can reduce the working strength of dispatching managers in taxi parking lot and improve the working conditions of working personnel.

The invention discloses a multi-speed-ratio multi-mode hybrid power system and a driving mode thereof. An output shaft of an engine is connected with a first electric motor through a first electrically-controlled clutch; an output shaft of the first electric motor is connected with a first input shaft of a gear box; an output shaft of a second electric motor is connected with a second input shaft of the gear box; a second electrically-controlled clutch is arranged between the first input shaft of the gear box and the second input shaft of the gear box; even-number gears and odd-number gears are arranged in the gear box; the even-number gears are arranged on the first input shaft of the gear box; and the odd-number gears are arranged on the second output shaft of the gear box. By the means, multiple driving modes are realized, the energy is saved and the emission is reduced; the double advantages of travel route increasing type pure electric and plug-in hybrid power driving are realized; and the congestion pure electric driving of city working condition can be satisfied, and the large-power driving output of high-speed working condition can be satisfied.

The invention belongs to the technical field of agricultural fertilizers, and particularly discloses a nitrogen-fixing microorganism compound fertilizer and a preparation method. The nitrogen-fixing microorganism compound fertilizer comprises polypeptide urea, a phosphatic fertilizer, polypeptide chelating potassium, a compound microorganism agent, a polypeptide compound, a soil conditioner, a medium trace element compound and a nutrition agent; the compound microorganism agent contains nitrogen-fixing bacteria, phosphate solubilizing and potassium solubilizing bacteria, photosynthetic bacteria, probiotics and adsorbate. The preparation method disclosed by the invention comprises the steps of preparing compound microorganism agent fermentation liquor, mixing the fermentation liquor with the adsorbate uniformly and preparing the compound microorganism agent and a microorganism envelope complex agent successively; mixing the microorganism envelope complex agent, a humic acid envelope organic fertilizer and a polypeptide envelope inorganic fertilizer uniformly, under the action of an electric field and a magnetic field, adding medium trace elements, spraying bone glue, and preparing nitrogen-fixing microorganism compound fertilizer particles. The compound fertilizer disclosed by the invention has the effects of adjusting nutrients, stimulating crop growth, improving the agricultural product quality, increasing yield and efficiency, preventing insect diseases, increasing soil fertility, loosening and improving soil quality and the like.

The invention discloses a mixed working medium thermal circulating system and method for power and refrigeration cogeneration. In the system, an ammonia and water mixture is utilized as a working medium, and the middle / low temperature heat is utilized as a heat source. The method comprises the following steps: heating the ammonia water working medium to obtain superheated steam; introducing the superheated steam into a turbine to do work; introducing the exhaust steam of the turbine into a rectification tower to supply heat for the rectification process; introducing the ammonia generated by the rectification tower into an evaporator after condensing, undercooling and throttling; throttling a dilute solution subjected to waste heat recovery, introducing the throttled dilute solution into aabsorber, mixing with the ammonia from the evaporator and condensing; and introducing a heat source into a steam generator firstly, and then introducing the heat source into a waste heat solution heat exchanger. The steam generator adopts the ammonia water strong solution as the working medium, the variable temperature evaporation feature of the ammonia water strong solution is well matched with the temperature of the heat source, thus the irreversible loss of the heat exchange process in the steam generator is reduced; simultaneously the exhaust steam of the turbine directly enters into the rectification tower to supply the rectifying heat without condensation, thus the irreversible loss caused by the variable temperature condensation of the ammonia water working medium is avoided; and the mixed type heat transfer is adopted, thus the irreversible loss of the heat exchange process is reduced.

The invention discloses a steel plate for the automobiles. The steel plate comprises the following chemical compositions in percent by mass: 0.0015%<=C<=0.004%, 0.35%<=Mn<=0.65%, Si<=0.03%, 0.03%<=P<=0.05%, S<=0.015%, 0.02-0.07% of Als, 0.005%<=Nb<=0.015%, 0.0002%<=B<=0.0015%, N<=0.004% and the balance of Fe and trace elements. The invention also discloses a method for producing the steel plate for the automobiles. The steel plate produced by the method provided by the invention is characterized by stable bake hardenability BH2 and good aging resistance, and achieves the aims of energy saving and emission reduction. Through the invention, the product quality is improved, and considerable economic benefits are brought.

The invention discloses a thermodynamic cycle system and method for ammonia water mixed working medium power cooling combined supply. Ammonia water mixture serves as a working medium, and medium-and-low temperature heat serves as a heat source; the thermodynamic cycle system includes a power cycle and a refrigerating cycle; and the power cycle taking the ammonia water mixture as the working medium, the characteristic of temperature-variable evaporation of the working medium is utilized to be excellently matched with a sensible heat source, meanwhile, the temperature-variable condensation of the working medium is utilized to provide heat for the re-boiling process of a tower kettle and the preheating process for partial feeding material of a rectifying tower of the refrigerating cycle. Through the system integration, the high-temperature part of the external heat source is utilized for power cycle, the low-temperature part of the external heat source and the heat extraction of the power cycle are utilized for the refrigerating cycle, the matched temperature and stepped utilization of heat are realized, and compared with the typical dividing system, the performance of the system is improved.

The invention belongs to the technical field of transportation scheduling, and discloses a truck formation transportation scheduling method, a scheduling system, a medium and a data processing terminal. A vehicle-mounted unit sends execution feedback to a platform after obtaining a preset path and an optimal speed. In an actual traffic scene, the vehicle-mounted unit builds a vehicle surrounding environment model by applying multiple sensors of a vehicle, decisions are made by combining real-time road section information sent by an intelligent road side system, and safe driving of the vehicle is controlled. The vehicle-mounted unit completes merging and grouping of vehicles in an allowable speed range of a road section and completes docking in allowable delay time, so that energy consumption is reduced, and task efficiency is guaranteed. The invention designs the formation transport organization method and system architecture of freight vehicles in combination with IVECS, and proposes to schedule the freight vehicles and merge the freight vehicles into a fleet set to travel together on a road, so as to achieve the purposes of energy conservation and emission reduction. Compared with a single vehicle driving scheme, the scheme of combining the vehicles into the queue can save energy consumption.

The invention discloses special structural explosive for explosive cladding, an explosive cladding method and an explosive cladding device. The structural explosive comprises a filling plate, a plurality of cavities filled with the explosive are formed in the filling plate and distributed in a matrix. The special structural explosive for explosive cladding is formed by filling or injecting the explosive in the cavities of the filling plate. A layer of composite plate is mounted on each of two sides of the structural explosive, and the two composite plates are driven to move reversely after explosion to composite with two base plates in reserve directions. By the aid of an explosive filling method, explosive filling quality is guaranteed, critical thickness of stable explosive detonation is reduced, and energy utilization rate of explosive explosion is improved. The special structural explosive is convenient to use, and mechanized batch production can be realized. By the aid of the explosive cladding device, usage amount of the explosive is lowered, production cost is reduced, shock wave and noise pollution are reduced, and working environment of workers is improved.

The invention discloses a multifunctional hybrid power general test stand and a test method, relating to the hybrid power test field. The multifunctional hybrid power general test stand consists of an engine, a coupler, an ISG motor, a speed changer, a motor, a sensor, a power synthesis device, a sensor, a dynamometer, an inertia device, a brake, an engine ECU, a rectification inverter, a battery-super capacitor energy driving system, a general control system consisting of controllers of all parts and a CAN bus, and a monitoring control computer. The test device can simulate the most of the operation conditions of the hybrid vehicles, provides a test platform for the development of the hybrid vehicle multi-energy-source control and the regenerative braking function and can provide and finish the various performance tests related to the hybrid power vehicle through changing the mutual connection modes between various members of the device and the control modes of various members.

The invention relates to a black inkjet full-polished ceramic tile and a preparation method thereof. The ceramic tile is of a composite layer structure consisting of a green body layer, a ground glazelayer, a pattern layer and a full-polished layer. The preparation method comprises the following steps: (1) ball milling of raw materials: placing ingredients into a ball mill, adding water to perform ball milling on the ingredients to obtain slurry, screening the slurry, and storing the screened slurry into a slurry pool for later use; (2) preparation of a powder compact by spray drying: conveying the slurry to a spray tower, drying the slurry into powder, controlling the moisture of the slurry at 5.8 to 7 percent, and performing dry pressing with a brick press; (3) green body drying: conveying the pressed green body into a drying kiln for drying at a temperature of 180 to 270 DEG C for 40 to 60 minutes; (4) spraying of ground glaze: conveying the ingredients into the ball mill, and adding 42 percent of water to perform ball milling to obtain glaze slurry; and (7) burning: implementing burning at a temperature of 1,080 to 1,150 DEG C for 45 to 60 minutes.

The invention discloses an outdoor return air preprocessing method of a central air-conditioning system. The method comprises the steps as follows: temperature and humidity sensors arranged at all points of a return air section of the central air-conditioning system are used for collecting temperatures and humidity of the points respectively; the temperatures and the humidity which are collected by the return air temperature and humidity sensor, the fresh air temperature and humidity sensor, the mixed return air and fresh air temperature and humidity sensor and the air supply temperature and humidity sensor are judged, and then five zones are divided; and an exhaust valve, a fresh air valve, a return air valve and a cooling air valve are controlled correspondingly in the five zones to satisfy temperature and humidity requirements in an air-conditioned room. According to the method, the certain relative humidity of the air-conditioned room is guaranteed while the outdoor low-temperature air is effectively used for cooling the room, that is, the cooling purpose is achieved on the premise that the moisture of the air-conditioned room is not lost, and meanwhile, the humidification amount is reduced, so that the energy conservation purpose is achieved.

An electrolysis tank used for aluminum electrolysis, comprising a tank body, an anode and a cathode arranged within the tank body, also an electrolyte accommodated within the tank body, where at least a part of the anode is submerged in the electrolyte. The anode is arranged above the tank body. The cathode is arranged at the tank bottom and is covered by a certain amount of liquid aluminum. The electrolyte is provided between the anode and the cathode. The electrolyte covers the liquid aluminum. The tank body has arranged on an inner sidewall thereof an insulation layer for use in separating oxygen or the electrolyte from a carbon block. The tank is characterized in that: the constituents of the anode comprise Fe, Cu, Ni, and Sn, where Fe and Cu are the main constituents; the electrolyte consists of 30 to 38 wt% of NaF, 49 to 60 wt% of AlF3, 1 to 5 wt% of LiF, 1 to 6 wt% of KF, and 3 to 6 wt% of Al2O3, where the molar ratio of NaF to AlF3 is between 1.0 and 1.52. The electrolysis tank is applicable in industrialized production of electrolyzed aluminum.

The invention provides a medicinal composition including active components of repaglinide and metformin hydrochloride, and its preparation method. The method comprises the following steps: carrying out hot melting granulation of metformin hydrochloride to prepare particles, directly spraying a repaglinide solution on the metformin hydrochloride particles through a one-step granulation technology, and adding parts of auxiliary materials to prepare a tablet.