77results about How to "Reduce production power consumption" patented technology

The invention relates to a catalyst for manufacturing maleic anhydride through the high-load and high-yield benzene gas-phase oxidation. A fixed-bed tubular reactor sequentially comprises an A section and a B section which are composed of catalysts with different performances along the inlet direction of reaction mixture gas; the A section is 40 to 60 percent of the total bed height, and the B section is 60 to 40 percent of the total bed height. The catalyst in the A section has the active phase composition that the ratio of V2O5:MoO3:P2O5:Na2O:NiO:Re2O3 equals to 1:(0.4 to 0.9):(0.01 to 0.08):(0.05 to 0.100):(0.005 to 0.500):(0.0001 to 0.0010), wherein, Re is any two of following rare earth elements that are Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu. The catalyst in the B section has the active phase composition that the proportion of the Re2O3 is 2 to 3 times of that of the Re2O3 in the A section, the proportion of the P2O5 is (0.005 to 0.040)mol, and the proportions of other oxides are the same with that in the A section. The catalyst can lead maleic anhydride production equipment to increase about 25 percent production capacity without increasing any investment, and the benzene consumption and the energy consumption can be obviously reduced.

The invention discloses a preparing craft of low-micro carbon chromium iron alloy, which comprises the following steps: 1) loading high carbon chromium iron into medium-frequency induction furnace; melting; heating-up at above 1600 deg.c; pouring into tank; 2) transferring the tank to station; air refining; 3) taking-up oxygen gun; inserting argon oxygen gun into solution liquid level 300-400mm of tank; setting the discharge of oxygen at 300-500 L/min; blowing at 5 min with argon oxygen ratio at 1 : 3; blowing at 5 min with argon oxygen ratio at 1 : 2; blowing at 5 min with argon oxygen ratio at 1 : 1; adding into silicon iron; 4) transferring the tank into vacuum chamber; switching in argon oxygen pipe at the bottom of tank; blowing into argon oxygen mixed gas; controlling the discharge capacity of argon gas at 150-250 L/min, discharge capacity of oxygen at 40-80 L/min, vacuum degree at 5-200Pa and time of air refining at 20-30 min; 5) relieving the vacuum; hanging the tank to casting position; casting; getting the product. The good effect of this invention is: simple producing craft; high productive efficiency; low power; good environment; low cost.

The invention relate to a system for synthesizing butyl rubber through LNG cold energy and a method thereof. The system is characterized in that the system comprises an LNG heat exchanger 1, a gaseous cold medium buffer tank 2, a liquid cold medium storage tank 3, a flash tank A-4, a flash tank B-5, a catalyst heat exchanger 6, a material heat exchanger 7, a polymerizer heat exchanger 8, an air temperature device 9 and a compressor 10; the method comprises the following steps: a cold medium such as ethane or ethene which meets the requirement of a butyl rubber synthesizing process and an LNG interface condition is selected; low-temperature cold energy contained in the LNG is permuted through the cold medium; and the low-temperature cold energy in the cold medium is used for cooling a catalyst solution and a mixed material and removing heat of polymerization reaction through corresponding heat exchange equipment so as to meet the requirements of the butyl rubber synthesizing process on temperature and cold quantity.

A grinding-promoting and strengthening agent of cement is prepared from triethanolamine (0.8-5 Wt portions), anhydrous sodium sulfate (20-30), powdered coal ash (10-18), sodium carbonate (6-10), sodium chloride (25-33), gypsum (18-25) and sodium carbonate (8-15).

An energy-conservation low-voltage set aluminum electrolytic bath has a structure that a bath structure is provided with a cut-off device which can adjust the height of an interface of an aluminum liquid layer generated inside the electrolytic bath and can control the flow rate of the aluminum liquid, as well as an aluminum liquid storing tank which can carry out electrode heating for an aluminum liquid inside an aluminum containing tank and ensure that the generated aluminum liquid inside the electrolytic bath flows into the aluminum containing tank through a diversion hole under the control of the aluminum liquid cut-off device. The energy-conservation low-voltage set aluminum electrolytic bath solves the problems that the prior commonly used electrolytic bath can not realize continuous timely discharge and manual adjustment and control of the generated aluminum liquid; meanwhile, a feasible design proposal for the energy-conservation low-voltage set aluminum electrolytic bath is provided in order to realize timely discharge of the generated aluminum liquid inside the electrolytic bath under the condition of an electrolytic operating mode, to eliminate the negative influence on electrolyte height, namely high polar distance and high voltage set caused by a magnetic field and a magnetic rotational flow generated by an aluminum liquid layer, and to reduce the electricity consumption during manufacturing electrolytic aluminum under the condition that the electrolytic bath is in an operating mode of low polar distance and low voltage; moreover, the design proposal for the feasible energy-conservation low-voltage set aluminum electrolytic bath ensures that a voltage of the tank can be set lower than 3.75mV.

The invention discloses a prebaked anode carbon block structure of an aluminum electrolysis cell. An anode carbon block is provided with a convex table and a concave groove which can be used for a metal conductive clamp for conductive connection operation and heightening the bottom carbon block for penetration buckling connection, so that a plurality of anode carbon blocks are assembled and heightened on the aluminum electrolysis cell to form an overall anode structure, and continuous production of the aluminum electrolysis cell can be performed without replacement of an anode or anode scrap. Thus the structure has the advantages of replacing the process mode for eliminating the connection and assembly among an anode steel talon, a ferrophosphorus ring and the anode carbon block, reducing the production cost of relative technical processes, improving the utilization ratio of conductive aluminum of the anode carbon block and reducing the electricity consumption for the production of the electrolytic aluminum and the technical cost.

The invention discloses a calcium carbide furnace and a method for preparing calcium carbide. The calcium carbide furnace comprises a furnace body, a plurality of electrodes and a plurality of spray guns. A calcium carbide production space is defined in the furnace body. The electrodes are embedded in the calcium carbide production space through the top wall and/or the side wall of the furnace body and are suitable for providing heat for the calcium carbide production space. The spray guns are embedded in the calcium carbide production space through the top wall and/or the side wall of the furnace body and are suitable for providing coal dust and oxygen for the calcium carbide production space so that heat generated through combustion of the coal dust and the oxygen can be supplied to the calcium carbide production space. Due to the fact that the spray guns are reasonably arranged between the electrodes on the top wall and/or the side wall of the furnace body of the calcium carbide furnace, heat in the calcium carbide furnace is evenly distributed.

The invention discloses a method and devices of vacuum heat treatment for shear productions. A furnace of heat treatment with three-cell vacuum, a standard closed loop control system and intelligent controlling are adopted to guarantee high craft accuracy. The method can efficiently solve problems of deficient finish and hardness to meet the requirements including sharp cutting edge, non-wearing and non-tipping. Processed by vacuum heat treatment, shears have much strongpoint including non-oxidation, non-decarburizing, good surface craft, minute deforming, excellent integrated mechanical property of heat treatment and long operating life. The method guarantees finish and hardness of shears and meets the requirements of sharp cutting edge, non-wearing and non-tipping. Compared with existing techniques, the method can reduce the power consumption of production, revive partial contradiction of using electricity, reduce cost of productions, advance performance and lifespan of productions, save energy sources and improve efficiency of productions.

An electrolytic copper-powder-processing technique includes electrolyzing, brushing, washing and dehydrating, roasting, restoring, grinding, sieving and other steps. An automatic brushing machine conducts brushing, negative electrode brushing format is two times up and two times down, brushing time is 20-60 seconds, brushing machine steeping time is controlled within 10-30 seconds, and brushing cycle is 30-60 minutes. Copper powder is conveyed to a washing dehydrating machine through an industrial hose pump. The washing dehydrating machine integrates filtering, washing, saponifying and dehydrating for the washing dehydrating step. The electrolytic copper-powder-processing technique achieves technique link of copper powder conveying, washing, dehydrating, roasting, restoring, sieving, mixing and packaging, greatly shortens technique process, achieves high automation degree, and reaches international advanced level in cleaning production, environment protection, resource composite recycling and the like.

The invention relates to a mine tailing dry discharge system, which includes a mine supplying apparatus, a concentration cyclone, a thickening machine, a non-power thickener, a high-frequency dewatering screen, a fine granule dewaterer and a belt conveyer. The mine supplying apparatus is connected to the concentration cyclone; an outlet of the concentration cyclone includes a concentrate outlet and a dilute liquid outlet, wherein the concentrate outlet is connected to an inlet of the dewatering screen, and the dilute liquid outlet is connected to an inlet of the thickening machine; an outlet of the dewatering screen includes a dry discharge outlet and a filtrate outlet, wherein the belt conveyer is arranged below the dry discharge outlet, and the filtrate outlet is connected to an inlet of the mine supplying apparatus; an outlet of the thickening machine comprises an upper outlet and a lower outlet, wherein the lower outlet is connected to an inlet of the fine granule dewaterer, and the upper outlet is connected to a water recycling tank of the thickening machine; and the outlet of the fine granule dewaterer includes a filter cake outlet and a press filtration flushing mixed water outlet, wherein the belt conveyer is located below the filter cake outlet and the press filtration flushing mixed water outlet is connected to a water recycling tank of the dewaterer.

The invention discloses a calcium carbide furnace and a method for preparing calcium carbide. The calcium carbide furnace comprises an oxygen heat reaction zone, a calcium carbide reaction zone, an oxygen-containing gas spray umbrella, a material inlet, an oxygen-containing gas inlet, a tail gas outlet, electrodes and a calcium carbide outlet. The oxygen heat reaction zone and the calcium carbide reaction zone are arranged from top to bottom; the oxygen-containing gas spray umbrella is arranged in the oxygen heat reaction zone; the material inlet is formed in the oxygen heat reaction zone and is formed in a position above the oxygen-containing spray umbrella; the oxygen-containing gas inlet is formed in the oxygen heat reaction zone and is connected with the oxygen-containing gas spray umbrella; the tail gas outlet is formed in the oxygen heat reaction zone; the electrodes are embedded into the calcium carbide reaction zone from a furnace top of the calcium carbide furnace; the calcium carbide outlet is formed in the calcium carbide reaction zone. The calcium carbide furnace and the method have the advantages that oxygen-containing gas can be in sufficient contact with mixed materials, the mixed materials can be heated under combustion effects of partial carbon-containing materials, and accordingly calcium carbide production energy consumption and the production cost can be saved.

Provided is a sintering waste heat power generation exhaust gas recycling utilization system. The system is characterized in that the system is provided with a heat exchanger, heat recovery is carried out on annular cooling high-temperature hot exhaust gas collected from an annular cooling high-temperature section hot air hood, at least three air duct partition boards are arranged on an annular cooling air duct, and the air duct partition boards divide the annular cooling air duct into corresponding cooling air ducts. Low-temperature hot exhaust gas produced after heat exchange carried out through the heat exchanger is respectively or simultaneously sent into the cooling air ducts to form a sealed air circulation which collects and sends the low-temperature hot exhaust gas which is obtained through heat exchange and cooling of the annular cooling high-temperature hot exhaust gas into the cooling air ducts. The system has the advantages that the low-temperature hot exhaust gas generated by sintering annular cooling waste heat power generation is recycled, heat energy waste and environment pollution phenomena caused by the exhausted low-temperature hot exhaust gas are eliminated, working environment of workers is substantially improved, sintering annular cooling waste heat power generation amount can be improved by 30% through collection and recycling of the exhaust gas in power generation, investment cost is significantly reduced, and electricity consumption in production is reduced by 26,880 thousand kw.h per day.

The invention discloses a method for producing slag portland cement by basalt in ingredients of cement, and aims to solve the problems of low early strength, low admixing amount of mixed material in cement and high dosage of clinker in the conventional portland cement. The method comprises the following steps: A, grinding portland cement clinker, gypsum and basalt to produce clinker powder by a large roll squeezer and a ball grinder; B, grinding and pelletizing blast furnace slag and gypsum to produce fine slag powder by a slag vertical grinding machine; C, mixing and agitating the clinker powder of which the weight percentage is 35% and the fine slag powder of which the weight percentage is 65% to obtain the slag portland cement through a mixing homogenizer, wherein the weight percentage of each material in the slag portland cement is 5-7% of basalt, 26-28% of portland cement clinker powder, 6% of gypsum and 61% of pelletized blast furnace slag. According to the method disclosed by the invention, the early strength of the slag portland cement is improved; the admixing amount of mixed material in the cement is increased and the dosage of the clinker is reduced.

The invention discloses a calcium carbide furnace which comprises a furnace body, an electrode, a feeding pipe, a tail gas outlet and an oxygen-containing gas inlet. The electrode and the feeding pipe are embedded at the top of the furnace body and extend into a cavity of the furnace body, the cavity of the furnace body is divided into a material layer area, a heat layer area and a reaction area sequentially from top to bottom, and temperature of the heat layer area is 1400-1600 DEG C when the calcium carbide furnace works; the tail gas outlet is arranged on the side wall of the heat layer area of the furnace body, and the oxygen-containing gas inlet is arranged on the side wall of the furnace body and positioned below the tail gas outlet. By arranging the tail gas outlet in the heat layer area, magnesium steam in tail gas is ensured not to be in oxidizing reaction with CO; by arranging the oxygen-containing gas inlet below the tail gas outlet, part of carbon in raw materials is combusted, so that energy consumption during calcium carbide production is lowered.

The invention discloses a carbon deoxidizer and a preparation method thereof. The carbon deoxidizer is prepared from the following raw materials in parts by weight: 91-93 parts of C, 2.5-4.5 parts of KOH, 1.5-3.5 parts of NaOH and 1-3 parts of H2O. The method for preparing the carbon deoxidizer comprises the following steps of: 1) mixing; 2) activation; 3) dipping; 4) dehydration; 5) roasting treatment; and 6) packing after the product sample test is approved, thereby obtaining the carbon deoxidizer. The carbon deoxidizer has superstrong overtemperature resurrection property and is improved in deoxidization capacity; simultaneously, the deoxidizer is low in requirement for the starting point of the reaction temperature, so that the production electricity consumption of an enterprise can be reduced to a large extent and the production cost of the product can be saved; and besides, the carbon deoxidizer further has the characteristics of low cost, stable supply, use safety, simplicity in operation and non-pollution emission.

The invention discloses a low energy consumption enamelling process, which comprises the following steps: (1) unwinding, using two unwinding devices to unwind the wires to be enamelled on two bobbins; (2) annealing, through annealing The furnace anneals the wires to be enamelled; (3) paints, paints the two wires to be enamelled after annealing through two sets of painting modules; (4) dries, paints The obtained enameled wire is dried through a drying device; (5) cooling, cooling the enameled wire through an air cooling device; (6) lubricating, coating a layer of lubricant on the surface of the enameled wire; (7) winding, winding the enameled wire Winding on the reel appliance; (8) Packaging, weighing and packaging, pasting the product information label, packing into the warehouse and recording; the invention adopts the double-input and double-out enamelling process of wire rods to achieve double output of enameled wire , Improve production efficiency, reduce production power consumption, reduce emissions of organic solvent waste gas, energy saving and environmental protection.

A ball grinder using the conic tetrahedals as grinding body is composed of cylinder, axle, motor, and the conic tetrahedals and circular balls in the ratio of (1-2):(1-10). Its advantages are high productivity, low loss of steel balls, and high specific surface area of powder body.