61results about How to "Guaranteed calorific value" patented technology

The invention discloses a TiO2-carrying photoelectric catalyst for photoelectrocatalytic advanced treatment on sludge, and a method and a device for TiO2-carrying photoelectric catalyst-based photoelectrocatalytic advanced treatment on sludge. The method provided by the invention comprises the following steps of 1, adding the TiO2-carrying photoelectric catalyst for photoelectrocatalytic advancedtreatment on sludge into sludge, 2, carrying out irradiation by an ultraviolet ray generator located at an upper part of a reactor, and feeding high-energy electrons produced by an air-carried high-energy electron generator into the sludge by an aeration pipe located a lower part of the reactor, 3, adding a composite coagulation agent into the sludge obtained by the step 2 and carrying out flocculation, and 4, carrying out press filtration of the sludge by a pressure filter. The TiO2-carrying photoelectric catalyst, the device and the method provided by the invention solve the technical problem that the sludge normal-temperature treatment technology cannot remove water absorbed by organic matter-containing sludge, realize that the content of water in residual sludge is reduced to the content below 50% by a single step under the conditions of a normal temperature and normal pressure, realize sterilization, deodorization and solidification of toxic heavy metal ions simultaneously, and realize a large sludge decrement, a low treatment cost and good treatment effects. Sludge treated by the TiO2-carrying photoelectric catalyst, the method and the device reaches the latest standard published by the state environmental protection department and is convenient for follow-up recycling application.

The invention discloses a method for regulating and controlling the flowing temperature of high-melting-point coal ash. The method comprises the following steps: measuring the ash melting point of a type of coal of which the coal ash is lower than 25 percent and the Al2O3 content in the ash is lower than 40 percent, blending a type of coal, of which the coal ash FT is larger than 1,400 DEG C since A / B is larger than 4.3, with one or more types of coal according to different masses, so that the coal ash A / B of the blended coal is less than 4.3, then ashing the blended coal, measuring blended coal ash FT, and directly using the blended coal ash if the blended coal ash FT satisfies the ideal operation temperature of a gasifying furnace; if the blended coal ash FT does not satisfy the ideal operation temperature of the gasifying furnace, further regulating and controlling the coal ash by adding an assistant. By adopting the method, the adaptability of the high-melting-point coal ash to a gasifying process of an entrained flow bed is improved, the calorific value of the blended coal is ensured, and meanwhile the adding amount of the assistant is reduced.

The invention discloses a dissimilar material friction-stir welding tool which comprises a cutter handle, a shaft shoulder part and a stirring needle connected sequentially. The stirring needle is provided with at least one group of lug bosses on the bottom part of a needle tip, and is arranged in a circular truncated cone shape; and the diameter of the stirring needle is gradually reduced from the part connected with the shaft shoulder part to the direction far away from the shaft shoulder part. One group or multiple groups of lug bosses is connected to the bottom part of the stirring needle,a single group is presented in an eccentric way, and the multiple groups are presented in a way of uniformly distributing around the axis of the stirring needle, so that the flow characteristic and the heating amount of materials on the lower part are ensured. The dissimilar material friction-stir welding tool solves the problem of differences in flow characteristics and temperature characteristics of the materials during dissimilar material (aluminum, steel; aluminum, organic composite materials and the like) friction-stir welding, and is particularly suitable for overlap welding of upper and lower dissimilar materials.

The invention discloses production equipment for a biomass wood pellet fuel. The production equipment comprises a saw dust pulverizer, a roller dryer and an extrusion forming granulator which are sequentially connected, wherein a material storage room is arranged between the roller dryer and the extrusion forming granulator and is used for transferring a wood pellet raw material and detecting moisture content of the wood pellet raw material. The wood pellet is taken as the raw material for producing the biomass wood pellet fuel, so that the production method is simple in process and is applicable to industrial production; the prepared biomass wood pellet fuel has high heat value, combustion ratio and heat efficiency.

The invention provides a split-and-combined method for crossing a fault in a fully mechanized mining face with complex geological conditions, and relates to the field of coal mine production. The steps mainly include: 1) before the production of the working face, build a roadway at a position close to the trough of the track to bypass the fault; 2) When the mining of the upper section of the working face advances to the fault, remove the equipment in the shrinking part; 3) Install the equipment at the newly opened cutting hole; 4) The working face closes. The efficient promotion of the technical scheme of the present invention provides a guarantee for the safe and efficient advancement of the fully mechanized mining face, increases the recovery rate of coal resources, and reduces a large amount of additional construction costs for moving and reversing costs; at the same time, it avoids the failure of the working face equipment due to crossing faults. It is damaged; it ensures the calorific value of coal, improves economic benefits, and has good practicability.

The invention discloses a blast furnace gas desulfurization process. The blast furnace gas desulfurization process comprises the following steps: (1) to-be-treated blast furnace gas passing through a TRT or a pressure regulating valve group passes through a pretreatment reactor to remove acidic corrosives so as to form pretreated gas, wherein a calcium-based absorbent serving as a pretreating agent is arranged in the pretreatment reactor, and the temperature of the blast furnace gas to be treated is 70-120 DEG C; (2) enabling the pretreated coal gas to pass through a hydrolysis tower, and converting organic sulfur into hydrogen sulfide to form hydrolyzed coal gas, wherein an alumina-based hydrolysis catalyst is arranged in the hydrolysis tower; and (3) enabling the hydrolyzed coal gas to pass through a desulfurization reactor to form purified coal gas; wherein the desulfurization reactor is filled with an iron oxide absorbent. According to the process, the desulfurization efficiency can be improved on the premise of reducing equipment corrosion.

The invention discloses a method for utilizing fume afterheat of a cement plant to heat-dry sludge and prepares cement by firing sludge. The method comprises the following steps of: respectively sending the fume afterheat discharged by a cement rotary kiln to a first sludge drying and granulating device and a second sludge drying and granulating device, for purpose of two-stage sludge drying; 2) stacking urban sludge in a sludge storage warehouse and carrying out pretreatment prior to the drying; 3) using a component-type feeder to send the pretreated sludge into the first sludge drying and granulating device, for purpose of first-stage sludge drying; 4) using a conveyor to send the sludge after the first-stage sludge drying into the second sludge drying and granulating device, for purpose of second-stage sludge drying; and 5) mixing the sludge subject to two-stage sludge drying with clay and lime material to form raw material, and obtaining the cement by grinding, calcining, cooling and powdering the raw material. In the method, waster materials are used for treating waster materials, so that the urban sludge is harmlessly treated and recycled, and remarkable social and environmental effects can be generated.

The invention relates to a micro-mist dust suppression method based on coal cutter cutting dust sources. Coal cutter cutting dust generation is divided into four different dust sources, and differentmist spraying modules are installed at corresponding positions of a coal cutter to conduct dust suppression on the dust sources. Mist fluid is sprayed by the mist spraying modules, and according to atomization parameters, the mist spraying amount and the dust concentration, particle size distribution, dispersion degree and dust generation amount of dust generated by different dust sources, a dustsource area is misted, so that the dust generated by coal cutter cutting is collided with mist drops of the mist fluid, coagulated and captured and settles in the initial state, and the capacity of capturing inhalable dust with the particle size of 10 micron or below is especially improved. The method fully considers a body structure, movement features and use conditions of the coal cutter, and adesigned dust suppression system has a certain anti-smashing performance and is reliable in use and convenient to maintain.

The present invention discloses a double-station electric heating cutter device for materials. The double-station electric heating cutter device comprises an electric heating cutter device body, a portal frame, double-station workbenches and an electric heating control component, wherein the electric heating cutter device body is connected to the portal frame in a sliding manner; the double-station workbenches are arranged under the portal frame; the electric heating control component is connected to the electric heating cutter device body through a circuit; an electric heating cutter mechanism in the electric heating cutter device body is fixed under a connecting support, so that the cutting operation can be achieved through an actuating cylinder; an electric heating knife rest connected to a cutter can be used for instant heating, so that the cutter can reach a high temperature within a short time in order to facilitate cutting of soft materials; a temperature sensor fixedly connected to an upper part of the connecting support can feed the actual temperature of the cutter back, so that the cutting action of the actuating cylinder is controlled; and the electric heating cutter device body can be switched between the double-station workbenches. The double-station electric heating cutter device has the advantages of simple structure, high production efficiency and capability of achieving automation of a cutting process.

The invention relates to a machine integrating straw picking, soil dust removing and straw processing and mainly aims to solve the problem that an existing straw picking and processing machine cannot remove soil dust. The machine comprises a frame, wheels, an engine and a transmission shaft, wherein the sprocket of the engine is connected with a second sprocket through a chain, a first sprocket is connected with the sprocket of a picker through a chain, the sprocket of the picker is connected with one sprocket of a straw cutter through a chain, and the other sprocket of the straw cutter is connected with one sprocket of a rubbing machine through a chain; the spindle of a dust remover is provided with centrifugal teeth, the cylinder of the dust remover is provided with dust removing holes, and the sprocket of the dust remover is connected with the other sprocket of the rubbing machine through a chain; a third sprocket is connected with the sprocket of a gearbox through a chain, and a fourth sprocket is connected with the sprocket of a rocker reducer through a chain; a packaging machine comprises a shell, a stirring roller and a turning plate are arranged in a hopper, the turning plate is connected with a pull rod, the sprocket of the rocker reducer is connected with the sprocket of the stirring roller through a chain, and a corrugated box connected with a rocker is connected with a pulley. The machine can remove soil dust during straw processing.

The invention discloses a system for drying sludge by utilizing radiation heat of a rotary cement kiln, comprising a sludge feeder, a first scraper conveyor, a second scraper conveyor, a rotary cementkiln, a first closed box, a second closed box, a first closed box feed port, a second closed box feed port, a first tracked conveyor, a second tracked conveyor, a fixed rolling toothed harrow, a first closed box discharge port, a second closed box discharge port, a first ventilation opening, a second ventilation opening, a first ventilation pipe, a second ventilation pipe, a discharge conveyor, afirst transmission device, a second transmission device, an exhaust fan, a biological filter and the like. The system for drying sludge by utilizing radiation heat of a rotary cement kiln can dry sludge under the condition of low temperature by utilizing the radiation heat of the rotary cement kiln, thereby keeping the original calorific value of the sludge; and the dried sludge is used as the auxiliary material of cement, and can contribute calorific value during cement burning, so that not only the sludge in urban sewage treatment factories and river and lake dredging sludge can be thoroughly treated, but also the heat energy resource of the sludge can be largely utilized.

The invention discloses a fluorine-fixing technology in the Tylototriton western endemia flurosis of composite fuel based on dust coal, soil stick layer and limestone, which is characterized by the following: affirming optimum proportion of dust coal / soil stick layer / limestone at 5:1:1 and optimum grain of limestone between 0.4-0.2 mm; making fluorine-fixing rate at 92 percent; obtaining composite fuel component easily; discarding present modified technology of stove chimney; fitting for spreading widely.

The invention relates to a process for backblowing and deashing through a bag-type dust remover by a blast furnace dry method. The pure blast furnace gas after the dust removal by the bag-type dust remover is used as a gas source to perform backblowing on the bag-type dust remover; and before the backblowing, the pure blast furnace gas after the dust removal by the bag-type dust remover is further deashed by a filter, and then is subjected to steps of temperature reduction, pressurization, dehydration and pressure regulation to meet the requirement of gas required by the bag body backblowing and deashing. The dust removal method of the process reduces requirements on nitrogen in the bag-type dust removal technology, and avoids the problem of bag backblowing caused by unstable pressure andinsufficient supply of nitrogen. The process has pollution-free operation, applies temperature swing adsorption, saves energy, reduces emission, simultaneously reduces the consumption of the nitrogen, safely and effectively reduces the cost of a blast furnace gas bag in the operation, and can be mainly applied to the bag-type dust removal of the gas of a large-sized blast furnace.