45results about How to "Reduce energy consumption index" patented technology

A multi-stage intensifying auxiliary sintering type ignition holding furnace comprises a sintering machine (1), an ignition device (2) and an auxiliary combustion device (3), wherein the sintering machine (1) has a trolley (1); the ignition device (2) and the auxiliary combustion device (3) are orderly arranged on the trolley (1); the auxiliary combustion device (3) has a hot air device (4), a blow-injection device (5) and an auxiliary combustion cover (6); the hot air device (4) has a hot air pipeline (401); and the blow-injection device (5) has a fuel gas total pipe (501), a fuel gas branch pipe (502), a blow-injection pipe (503) and a rack (504). The multi-stage intensifying auxiliary sintering type ignition holding furnace can replace coke by partial fuel gas and hot smoke and achieves sintering bed segregation coke distribution effect via phase conversion; blow-injection device adjustability and freedom can be enhanced; multi-procedure multi-medium coupling blow-injection can be achieved; and the multi-stage intensifying auxiliary sintering type ignition holding furnace has great safety performance and high sintering quality.

The invention discloses a low-rank coal gradation usage poly-generation system and a method thereof. The low-rank coal gradation usage poly-generation system comprises a feed coal pyrolysis carbonization system and an entrained bed dry powder gasification system, wherein in the pyrolysis carbonization system, high water/high ash low-rank coal is subjected to pyrolysis and carbonization treatment, so as to obtain crude gas, tar and semi-coke; an oil product is obtained through coal tar hydrogenation; crude gas is purified to obtain coal gas; semi-coke is fed into an entrained bed for gasification; dry powder feeding is adopted during entrained bed gasification; semi-coke is grinded and fed in a powder form; after gasification, a synthesis gas is purified and changed to obtain hydrogen needed during coal tar hydrogenation and a synthesis gas needed during chemical synthesis. The low-rank coal gradation usage poly-generation system and the method thereof have the characteristics of stable and reliable operation, easy large-scale amplification, environmental protection, energy conservation, and the like.

The invention discloses a method for reburning denitration of a cement kiln by using alternative fuel. The reburning alternative fuel is added to a reducing combustion area inside a decomposing furnace of adopting a grading combustion technology; the adding amount of the reburning alternative fuel is 0-80% of total mass of fuel of the decomposing furnace; the reburning alternative fuel is a refuse derived fuel of which the volatile content is greater than or equal to 30% and/or waste alternative fuel of which the amino content is greater than or equal to 3%. By leading in a reburning process of the alternative fuel, atmosphere control is flexible; no significant effect is generated on operation of a cement kiln system; a burning intermediate product is high in decomposition degree, and small in impact on the existing fractional combustion system, and does not generate a new atmospheric pollutant; the operation of the existing cement kiln system is not affected in the transformation process. Compared with the conventional denitrified reburning fuel, the alternative fuel has higher volatile content and amino content, and has higher denitration efficiency in the burning process.

The invention aims at providing a carbon fiber tooling arm for a robot, wherein the carbon fiber tooling arm for the robot has strong rigidity, fatigue resistance and light weight, and comprises a T-shaped body, an installation part and an fixed end socket; and the installation part is arranged on the cross bar of the T-shaped body, and the fixed end socket is arranged at the end of the vertical bar of the T-shaped body. The invention is characterized in that the T-shaped body is in a hollow square column shape, the inner layer of a column wall is carbon fiber woven fabric, the outer layer of the column wall is continuous carbon fiber, and the entirety is impregnated and cured by epoxylite.

An embodiment of the invention discloses a method for controlling the furnace pressure of a pulse furnace. The method includes the steps: arranging a test mechanism for testing the furnace pressure of the pulse furnace and a control mechanism for adjusting the furnace pressure of the pulse furnace in the pulse furnace; calculating feed-forward quantities including a first flue gas quantity, a second flue gas quantity and a third flue gas quantity and then summarizing the first flue gas quantity, the second flue gas quantity and the third flue gas quantity to serve as the adjusting feed-forward quantity of a gate valve position; correcting a valve characteristic curve of the gate valve position to reduce the influence of nonlinear factors, and adjusting the gate valve position according to the corrected valve characteristic curve; monitoring the state of a furnace door, closing the gate valve position by a preset angle when the furnace door is opened, and opening the gate valve position by the preset angle when the furnace door is closed; and monitoring the state of burners, and adjusting the number, the sequence and opening-closing action of the burners involved in combustion. The control mechanism comprises the adjustable gate valve position, first flue gas is generated by air and coal combustion, second flue gas is reduced by dilution wind extracted by a dilution fan, and third flue gas is extracted by a warm protection fan.

The invention discloses a method for extracting pure nitrogen from polluted nitrogen high in extraction rate and low in energy consumption. The method includes the following steps that polluted nitrogen enters a main tower and then conducts heat and mass transfer with top-to-bottom liquid on a tower plate or fillers in the main tower from bottom to top, part of pressure is pumped out at the tower top, and the polluted nitrogen serves as a product after being reheated through a main heat exchanger; after polluted liquid nitrogen discharged from the bottom of the main tower enters a subcooler to be cooled through the subcooler, polluted nitrogen evaporated from a main tower condenser is sent to a secondary tower, the polluted nitrogen conducts heat and mass transfer with top-to-bottom liquid on a tower plate or fillers in the secondary tower from bottom to top, the polluted nitrogen generated at the tower top is condensed through a secondary tower condenser, part of the condensed liquid returns to the secondary tower to serve as backflow liquid, and the other part of the liquid enters the main tower to serve as backflow liquid; the polluted nitrogen evaporated from the secondary tower condenser is reheated through the subcooler and the main heat exchanger, and then is sent to a polluted nitrogen compressor to be recycled and utilized. According to the method, the amount of the nitrogen extracted from the polluted nitrogen is higher than the amount of the nitrogen extracted from the air, and the nitrogen extraction rate reaches more than 90%.

The present invention relates to an improvement on sebacic acid melting-spraying granulation process and its equipment. Said process is implemented by adopting the following procedures: (1), making the sebacic acid product be added into a melting kettle with stirrer, introducing saturated steam, heating and melting; (2), feeding the molten sebacic acid into a centrifugal chamber of centrifugal spraying machine by means of heat-insulating conveying pipeline; (3), utilizing jet holes which are uniformly distributed on the side wall of said centrifugal chamber and high-speed rotated centrifugal chamber to make the molten sebacic acid be ejected; (4), introducing the atomized molten sebacic acid into a countercurrent settling tower and undergoing the processes of cooling, forming and drying; and (5), feeding the formal products collected by trapper onto a vibration sieve, sorting and packaging so as to obtain the invented finished product. The improved equipment is a vertical tower-type structure, tower top is equipped with an air draught hole, a buffer chamber settling cavity and a trapper, and the lower portion of tower body is equipped with an air inlet structure.

The invention discloses a production method of feed-grade tricalcium phosphate. The method comprises the following steps: 1, drying of phosphorus rock powder; 2, mixing and ball milling; 3, disc granulation; 4, calcination defluorination; 5, cooling, crushing and sieving; 6, ball-milling of a semi-finished product; 7, screening deironing; and 8, product packaging. The method has the following advantages: 1, the raw material component and the granularity range of the phosphorus rock powder are prescribed; 2, addition of a sodium salt to raw materials facilitates decomposition defluorination of phosphorus rocks; 3, addition of phosphoric acid to the raw materials improves the content of phosphorus in the above product and facilitates granulation and calcination defluorination; 4, addition of steam in the calcining process promotes decomposition defluorination of the phosphorus rocks; 5, the product goes through the area of an electromagnet or a permanent electromagnet to remove iron fillings and other metal impurities, so operation control is simple, and the impurity removal efficiency is high; and 6, calcination tail gas is fully used to produce saturated steam and superheated steam, so energy is saved, and the energy consumption and the production cost are reduced. The method is suitable for producing the feed-grade tricalcium phosphate product.

The present invention relates to a new type air treatment equipment, including a shell body, a rotatable shaft and a driving device. The rotatable shaft is directly connected with driving device, in the interior of shell body several thin circular disks whose surfaces are mutually parallel and spaced are mounted on the rotatable shaft, and fixed together to form a circular disk group, and the place ahead of and over the circular disk group and the place behind and over the circular disk group are respectively equipped with UV lamps, the lower portion of said shell body can be used as water channel, and two ends in the interior of said water channel are equipped with two partion boards, one end of the water channel extrior is equipped with water inlet, and its another end is equipped with overflow tube.

The invention discloses a device of recycling C2 from refinery dry gas, which includes a PSA unit, a compression unit and an oil absorption unit. The PSA unit includes a first-section PSA device. The compression unit includes a compressor and a liquid separation pot. An inlet of the first-section PSA device is communicated with the raw material dry gas and an outlet of the first-section PSA device is communicated with the inlet of the compressor. The outlet of the compressor is communicated with the inlet of the liquid separation pot. The invention is advantaged in that firstly the raw material dry gas is subjected to primary concentration in the first-section PSA device being low in energy consumption, and then the PSA concentrated gas is further concentrated through an adsorption/desorption method being high in recycle rate and product purity, wherein the temperature of fed gas material, an absorbent and top reflux are all 40 DEG C in the absorption unit. By means of circulated cooling water, the cooling condensation temperature can be achieved without any refrigerating device. By means of the compressed condensate as the absorbent, it is unnecessary to feed a C4 absorbent from other apparatus. The invention also discloses a method of recycling C2 from the refinery dry gas.

The invention relates to a preparation method of N-(4-(2-ethylhexyloxy) phenyl)-1, 1-dioxothiomorpholino. The method is characterized by comprising the following steps of: adding 10 parts by weight of thiodiglycol and 10 parts by weight of water to a reaction kettle, then adding 1-2 parts by weight of quaternary ammonium salt as a catalyst, adding 65-75 parts by weight of hydrogen peroxide dropwisely into the reaction kettle, after dropping, preserving the heat of the mixture and allowing it to stand for one hour so as to generate bishydroxyethylsulfone, adding p-aminophenol to conduct a condensation reaction for 3 hours, then adding bromoisooctane for a further condensation reaction for 3 hours, pouring n-heptane into a product stock solution, stirring the solution and allowing it to stand, taking out the extraction phase and evaporating the solvent to dryness, thus obtaining a finished product. Application of the method provided in the invention can prepare products with an overall yield of over 86% and effective content of more than 98%, so the method is completely applicable to large scale industrial production. With substantial economic benefit, social benefit and ecological benefit, the method provided in the invention fully meets the requirements of safety, environmental protection and high efficiency that are advocated by the nation in developing low carbon economy.

The invention relates to a secondary network intelligent adjustment system based on room temperature monitoring. The system comprises: a room temperature monitoring and data collecting system used formonitoring the room temperature of a typical user in real time and obtaining an effective average room temperature; a meteorological data acquisition system used for acquiring outdoor meteorologicaldata, wherein the outdoor meteorological data comprises outdoor temperature data; and an intelligent adjustment heat supply platform used for establishing a heat supply operation curve according to the outdoor temperature, the room temperature monitoring data and a preset indoor temperature, correcting the water supply temperature of the secondary network according to the established heat supply operation curve and issuing the corrected water supply temperature of the secondary network to each heat exchange station for automatic operation of the heat exchange stations. The internet of things is combined with big data, self-sensing and self-optimizing operation of the heat supply system is achieved through self-adaptive regulation of intelligent means, energy consumption indexes such as heat and electricity are reduced, and the energy utilization rate is increased.

The invention discloses a marine temperature-adaptive air-cooled cabinet, the cabinet is a three-area cabinet composed of an air supply area, an equipment area and an air return area, the air supply area and the equipment area are further divided into a plurality of sub-areas in the vertical height, and the air supply sub-areas and the equipment sub-areas at the same height form a relatively independent heat dissipation unit; the public air return area collects hot air flowing out of the heat dissipation units. Through an air flow stabilizing and distributing mechanism composed of an air supply area cavity, an air supply pipe, a proportioning valve and a flow guide plate, air flow organization in the cabinet is clear, and heat exchange efficiency is improved. And the heat dissipation unit is combined with the multi-loop temperature control unit to form a temperature self-adaptive air cooling system with complete functions. According to the system, zoned control of temperature is realized, and the running condition of equipment in each heat dissipation unit is matched. And according to the temperature set value and the actual temperature feedback value, the branch cold air conveying amount is controlled as required, regional refined refrigeration management is achieved, and the energy consumption index of unit load is further reduced.

The invention discloses a method for producing feed-grade tricalcium phosphate by utilizing low-calorific-value tail gas. The method comprises the following steps: (1) burning ground phosphate rock byutilizing the low-calorific-value tail gas and drying; (2) mixing and ball milling; (3) performing disc granulation; (4) calcining and defluorinating the low-calorific-value tail gas; (5) air heat storage and temperature rise; (5) cooling, crushing and sieving; (6) circularly crushing and screening, and ball-milling a semi-finished product; (7) screening and removing iron; and (8) packaging products. The method has the following advantages: (1) the raw material components and the particle size range of the ground phosphate rock are specified; (2) low-calorific-value tail gas combustion is fully utilized for heat storage and temperature rise of combustion-supporting air; (3) a low-calorific-value tail gas combustion technology and a co-combustion technology are fully utilized; (4) steam isadded in the calcining process to promote decomposition and defluorination of the phosphate ore; and (5) saturated steam and superheated steam are produced by fully utilizing calcined tail gas, so that energy is saved, and energy consumption and production cost are reduced. The method is very suitable for being popularized and used in enterprises producing feed-grade tricalcium phosphate products.

The invention relates to a method for producing fireproof black cotton by using red mud, and belongs to the technical field of comprehensive utilization of solid waste resources. Comprising the following steps: (1) burdening; (2) mixing and pelletizing; (3) drying/preheating dehydration; (4) melting; (5) discharging; during material melting, the melting temperature is controlled to be 1450-1650 DEG C. According to the method disclosed by the invention, the content of iron in the fiber is effectively controlled and improved by burdening the Bayer process red mud, burdening the Bayer process red mud and mixing the Bayer process red mud and the sintering process red mud and controlling the MK value, the MB value, the furnace temperature and the reducing agent parameters, so that the red mud can be comprehensively utilized to produce fireproof black cotton series products.