53results about How to "Simplify layout process" patented technology

The invention discloses a pretreatment technique for the heat spraying for a steel part, belonging to the technique field of surface treatment. The process is as follows: surface cleaning-degreasing-derustin-sealing-surface coarsening-heat spraying. The invention has the advantages that the technique has simple requirements to the treatment of the parts, the distribution of the technique, and is easy to operate, good pretreatment quality, which warrants the quality of the heat spraying; besides, the technique requires little investment to the infrastructure, and has high treatment efficiency, low construction cost, and good economic benefit.

The invention relates to a process for preparing carbon forming powder, in particular to a new process for preparing carbon forming powder by adopting an air swept type ball milling system. In the invention, equipment mainly comprises a raw material bin, an air swept type ball mill, a high-efficiency rotor type grader, a gas tank pulse bag type dust collector, a main exhaust fan and a finished powder bin. In the main work process of the invention, a raw material is fed and added to the air swept type ball mill through a feeder and is subjected to rough and fine powder grading through the high-efficiency rotor type grader, rough particles are returned to the ball mill for pulverizing once again, and fine particles enter the gas tank pulse bag type dust collector for collection. The invention has the technological performance advantages of high systemic force supply, low power consumption for unit product, high finished powder purity, and good uniformity and stability, and completely eliminates the phenomena of air leakage and ash flying in the traditional process because of the operation in a negative pressure state. The process is not only suitable for the optimization and technological improvement on the traditional process in the production process of the carbon forming powder, but also suitable for new projects of a carbon forming powder preparation system.

Provided are a structure of an alternative folding flange type steel plate shear key and a construction method thereof. The steel plate shear key includes a ribbed plate which has semicircular holes,trapezoidal flange plates alternatively folding, and semicircular end plates. The semicircular hole is internally provided with a horizontal through rebar. A vertical bending rebar is arranged among the flange plates. An upper concrete panel is poured on a steel beam top plate, and the upper concrete panel completely covers the steel plate shear key. The construction method comprises the followingsteps: cutting and forming steel plates used in the shear key, alternatively folding the trapezoidal flange plates and the end plates, welding the ribbed plate integrally with the steel beam top plate, placing the horizontal through rebars and the vertical bending rebar, binding the structure using a reinforcing mesh, pouring the upper concrete panel and normally maintaining to set time, dismounting a formwork. The alternative folding flange type steel plate shear key is welded integrally with a steel beam, cooperative work of upper concrete and a lower steel beam is realized. The structure is advantaged by simple structure, convenient and fast construction, and little steel material waste, and is beneficial for popularization and application of a steel-concrete combined bridge.

The invention relates to a semiautomatic brick unloading, grouping and stacking device and method for sintered bricks. A brick putting and grouping mechanism, a brick clamping machine, a lifting roller bed and a stacking machine are arranged, the bricks are unloaded on the brick putting and grouping mechanism through manual work, and semiautomatic brick unloading, grouping and stacking are achieved; and the equipment cost is low, and the beneficial effects that automatic grouping and packaging can be achieved are achieved. By means of the semiautomatic brick unloading, grouping and stacking method, the stability in the process is good, the technology layout is simple, the labor intensity is greatly improved, in addition, efficiency is high, safety is good, and very high application popularization value is achieved.

The invention relates to a temperature-controlled suspension roaster. The temperature-controlled suspension roaster comprises a cyclone separator, a preheating cyclone drum, a temperature-controlled roaster, a drier and a multistage cyclone cooler, wherein the cyclone separator is a two-stage cyclone separator which comprises a first-stage cyclone separator and a secondary cyclone separator, and the multistage cyclone cooler sequentially comprises a first-stage cooler, a middle-stage cooler and a final-stage cooler from the upstream to the upstream of the running path of material. The temperature-controlled suspension roaster has the advantages that the process arrangement is simple, the occupied land is small, and the operation and maintenance expenses are low; the roasting effect is good, the decomposition efficiency of magnesium carbonate is high, and magnesium oxide products with different purities can be obtained by changing calcination temperature; magnesite powder is dried and preheated by using discharged waste gas, the heat of high-temperature waste flue gas is fully recycled, and the heat efficiency of the roaster is improved; and the four-stage cyclone cooler has a good cooling effect and can be used for cooling a finished product magnesium oxide to be below 100 DEG C so that caloric content of magnesium oxide can be fully recovered for disintegrating magnesite and the energy consumption of the roaster can be reduced.

The invention relates to a waste gas waste heat recovery and purification process of a coke oven gas heating system, and the method comprises the following steps: carrying out heat exchange cooling and dehydration treatment on coke oven waste flue gas generated in the coke oven heating process, and feeding into a dry quenching furnace for cooling high-temperature coke; allowing high-temperature waste flue gas discharged from the dry quenching furnace to enter a primary dust remover for dust removal, and meanwhile, spraying a desulfurizing agent into the primary dust remover to desulfurize thewaste flue gas; allowing the desulfurized high-temperature waste flue gas to enter a waste heat boiler for recovery of the heat of the high-temperature waste flue gas by the waste heat boiler, and controlling the outlet temperature of the waste flue gas by the waste heat boiler to allow the waste flue gas discharged after heat exchange to directly enter an SCR denitration device for denitration; and after heat exchange cooling and secondary dust removal are carried out on the denitrated waste flue gas, conveying one part of the denitrated waste flue gas to a chimney to be discharged, and conveying the other part of the denitrated waste flue gas to a waste flue gas pipeline on the upstream of the dry quenching furnace for recycling. According to the invention, the red coke waste heat and the coke oven waste flue gas waste heat are recycled, and meanwhile, the coke oven waste flue gas is purified, so that the flue gas emission meets the national standard, and the atmospheric pollution isreduced.

The invention belongs to the technical field of pulverized coal combustion, and discloses a method for jointly controlling the emission of NOx by utilizing multi-stage bias combustion and fuel reburning. The method comprises the steps: arranging a multi-stage bias burner containing 2 to 6 layers of bias burners in a multi-stage bias combustion area, sending 75 to 85 percent of fuel into the multi-stage bias combustion area, and generating flue gas containing the NOx during the combustion; spraying mixed reburning fuel of 15 to 25 percent of coal and biomass fuel into a mixed reburning area, forming a reburning reduction area, precipitating CHi and NHi active groups by the mixed reburning fuel in reducing atmosphere, and reacting the CHi and NHi active groups with the NOx generated in the multi-stage bias combustion area to be reduced into N2; and spraying the air into a burnout area, and completely combusting combustible substances which are not completely combusted. The method can efficiently control the emission of the NOx, ensure that the removal efficiency of the NOx is more than 80 percent, realize the combustion of high pulverized coal concentration, improve the performance of ignition and steady combustion, improve the adaptability of coal types, effectively prevent the slag bonding of water-cooled walls, and achieve the aims of improving boiler efficiency, saving energy and reducing consumption.

The invention discloses a classified washing process for thermal coal. The classified washing process comprises the following steps that raw coal is screened to raw coal with three particle sizes of being more than 25mm, between 25mm and 13mm and less than 13mm, all raw coal with the particle sizes of being more than 25mm enters into a lump coal dense medium separation system, the separated lump clean coal and lump gangue enter into a lump coal dehydration and medium removal system for treatment and then output separately, and screened water enters into a slime water treatment system; and allraw coal with the particle sizes between 25mm and 13mm is directly transferred to a lump clean coal belt, the raw coal with the particle sizes of being less than 13mm is subjected to deep screening and pulverized coal removal, the raw coal with the particle sizes of being more than 6mm is transferred to the lump clean coal belt to be output, and slack coal with the particle sizes of being less than 6mm enters a slack coal bunker to be output. The raw coal is classified and then enters different separation processes for separation, the characteristics of low separation lower limit and high separation precision of a dense-medium shallow-groove separator are combined, and the classified washing process is particularly suitable for thermal coal preparation plants with fragile coal quality andstrict requirements for product granularity, has the advantages of simple process arrangement and low production cost, improves the quality of clean coal, and also guarantees the yield of lump coal.

The invention provides a wind tunnel test section bottom plate surface temperature uniformity testing device and a testing method thereof. According to the scheme, the testing device comprises a bottom plate block, optical fibers, a fiber bragg grating signal demodulator and an upper computer; the number of the optical fibers is k, wherein k is a non-zero natural number; the k optical fibers are arranged on the bottom plate block in parallel; n fiber bragg gratings with different reflection center wavelengths are etched on each optical fiber, and the n fiber bragg gratings form a fiber bragg grating string, wherein n is a non-zero natural number; each optical fiber grating is packaged by a heat conduction substrate; all the fiber bragg grating strings are connected with the fiber bragg grating signal demodulator; and the fiber bragg grating signal demodulator is in data communication with an upper computer through a data line. According to the scheme, the temperature uniformity of thebottom plate surface of a wind tunnel test section can be accurately and effectively tested, the wiring is simple, the maintenance is convenient, the anti-interference capability is high, and the influence of the wind tunnel environment and gas flow is avoided.

The invention relates to low-rank coal drying and pyrolysis integral quality improvement processing process equipment, which comprises a pyrolysis device, a drying device, a circulation fan flow division device, a support rotating device, an annular material guide airlock device, an annular discharging airlock device and a discharging device, wherein the pyrolysis device is arranged in the dryingdevice; the circulation fan flow division device is arranged in the drying device; the support rotating device is arranged at the bottom of the drying device and is opposite to the circulation fan flow division device; the annular material guide airlock device is arranged at one end of the drying device and communicates with the pyrolysis device; the annular discharging airlock device is arrangedat one end of the pyrolysis device, and is opposite to the annular material guide airlock device; the discharging device is arranged at the annular discharging airlock device. The pyrolysis device ofthe low-rank coal drying and pyrolysis integral quality improvement processing process equipment and the drying device are combined into a whole; the process arrangement is simplified; the process cost is reduced.

The invention discloses a method and a device for efficiently bleaching medium-concentration paper pulp through cooperation of ozone and chlorine dioxide. The device comprises a DCS control system, and a medium-concentration vertical pipe, a mixing unit and a bleaching tower which are connected successively. In treatment process adopting the method and the device, ozone can mostly replace chlorinedioxide, so that AOX in bleached wastewater is greatly reduced, the pollution load of wastewater treatment is reduced, and residual organic chloride in bleached pulp is reduced; due to the strong oxidizing property of ozone and the high selectivity of chlorine dioxide, lignin and chromophoric groups of to-be-bleached pulp with different characteristics can be removed in a targeted manner throughflexible synergistic cooperation, so that paper pulp with high whiteness, high strength and low kappa number is obtained; ozone is taken as a gaseous bleaching agent, and the adding position of ozonein an existing chlorine dioxide bleaching section is flexible and adjustable; compared with low-concentration or high-concentration paper pulp bleaching, advantages are that ozone and chlorine dioxideare synergistically mixed with turbulence-state medium-concentration paper pulp more uniformly, mass transfer is more efficient and rapid, the whiteness of bleached pulp is uniform and stable, and water and energy are saved.

The invention provides a method and device for static sensitization of emulsion explosives. According to the invention, a tubular sensitizing pipe with an interlayer is arranged; the front end of the tubular sensitizing pipe is connected with an emulsifying matrix and sensitizer conveying pipe; the rear end of the tubular sensitizing pipe is connected with an explosive injecting pipe of a charging machine and with a certain length; the interior of the tubular sensitizing pipe is provided with, according to a certain sequence, 2 to 6 cone-type sensitization cups with holes and 1 to 5 mixers; and under the conditions of production capacity of 2-8 t/h, a temperature of 50-70 DEG C, a pressure of 0.8-1.5 MPa and co-action of foaming agents A and B, the emulsifying matrix is continuously mixed and sensitized so as to form a stable emulsion explosive.

The invention discloses a hydrolysis kettle continuous material feeding and discharging production process in gas-phase furfural production, and belongs to the technical field of furfural production. The invention aims at the problems that 95% of the existing furfural production industry adopts a sulfuric acid catalysis method, the generated furfural is removed by steam stripping, and the hydrolysis process is intermittent, and the root reason is that the feeding and discharging of a hydrolysis kettle are intermittent. The invention relates to the production process for realizing continuous and stable feeding and discharging of materials in a hydrolysis kettle by using a device capable of blocking pressurized steam and continuously feeding and discharging the materials. Due to continuous feeding and discharging of the hydrolysis kettle, three independent processes of loading, reacting and unloading of the hydrolysis kettle can be omitted, so that loading, reacting and unloading of the hydrolysis kettle are carried out at the same time, and the production period is greatly shortened.

The invention discloses a long log direct-rolling casting blank thermal insulation device, a production line and a method and belongs to the technical field of steel metallurgical industrial long logdirect rolling. The casting blank thermal insulation device comprises a steel pushing mechanism, a cantilever roller bed, an electric heating device and a stepping beam structure which are arranged ona box, and the stepping beam structure comprises a movable beam and a fixed beam. The casting blank thermal insulation production line comprises a steel furnace, a continuous casting machine, a withdrawal and straightening machine, a dividing shear, a parallel flow roller bed, the casting blank thermal insulation device, an electromagnetic induction heat supplementing device and a rolling line. According to the production line, by arranging the casting blank thermal insulation device behind the continuous casting parallel flow roller bed, when a continuous casting blank cannot be produced dueto a short-time fault of the rolling line, the continuous casting blank enters the casting blank thermal insulation device for thermal insulation, and after the fault is handled, the continuous casting blank in the casting blank thermal insulation device discharges steel through the stepping beam structure in the casting blank thermal insulation device and is rolled after heat supplementing by electric induction. In the whole production process, except for a small quantity of head and tail blanks, no continuous casting blank gets off, and therefore the direct rolling rate and yield of the long log direct-rolling production line are increased.

The invention discloses a material sorting system, and relates to the technical field of waste treatment. The material sorting system comprises a centrifugal fan, a cyclone separator and an airflow chamber. The airflow chamber comprises a feeding port, a first discharging port and a second discharging port. The first discharging port is located above the second discharging port. The feeding port is formed between the first discharging port and the second discharging port. A second air inlet of the cyclone separator is connected with the first discharging port. A second air outlet of the cyclone separator is connected with a first air inlet of the centrifugal fan. A first air outlet of the centrifugal fan is connected with the second discharging port end of the airflow chamber. The centrifugal fan is arranged above the cyclone separator. By means of the material sorting system, repeated material sorting can be achieved, the material sorting rate can be increased, the purity of materials obtained after sorting can be improved, and waste recycling is achieved.

The invention discloses organic polymer luminescent concrete and further discloses a preparation method of the organic polymer luminescent concrete. The organic polymer luminescent concrete comprisesa concrete plate, transparent side luminescent materials and light sources. The transparent side luminescent materials are embedded in the surface layer of the concrete plate, at least one ends of allthe transparent side luminescent materials are located at the edge of the concrete plate, and the ends, located at the edge of the concrete plate, of the transparent side luminescent materials are equipped with the light sources; the transparent side luminescent materials are arranged on the surface of the concrete, and the advantages that the utilization rate of the transparent side luminescentmaterials is high, and the cost is low are achieved; according to the organic polymer luminescent concrete and the preparation method thereof, the luminescence principle adopts the principle of side surface luminescence of the transparent side luminescent materials, the light source arrangement technology is simple, and industrialization popularization is facilitated; the application range is wide; and additionally the organic polymer luminescent concrete is electrically neutral, contains no heat, and is free of ultraviolet rays and maintenance, capable of achieving color changing, high in strength, good in weathering-resistant property, long in service life and suitable for aspects such as building decoration and pavement or park guidance.

The invention relates to a sampling system and in particular relates to a bulk material sampling and sample preparation system. The invention provides an automatic bulk material sampling and sample preparation system which is used for preparing a chemical analysis sample, a physical performance sample, a metallurgy performance sample and the like online through bulk materials, and can realize functions including online granularity distribution determination, sample moisture detection, physical performance testing and the like; the bulk material sampling and sample preparation system comprisesa sample preparation device and a mechanical arm; a granularity composition analysis device, a moisture measurement device, an analysis sample preparation device, a sample storage device and a washingdevice are arranged around the mechanical arm; the bulk material sampling and sample preparation system further comprises a control system; the sample preparation device, the mechanical arm, the granularity composition analysis device, the moisture measurement device, the analysis sample preparation device, the sample storage device and the washing device are connected with the control system; the mechanical arm is controlled by the control system to convey the bulk materials to each device in sequence and a full-automatic sample preparation system is applicable to industries including an iron and steel metallurgy industry, an ore terminal industry, an electric industry, an exploration industry and the like.

The invention discloses a tensioning car of a belt conveyor. The tensioning car of the belt conveyor comprises a tensioning car frame, a tensioning driving roll, at least one driving device and a tensioning device, wherein the tensioning driving roll is arranged at the front end of the tensioning car frame through bearings; a rubber belt of the belt conveyor is arranged on the tensioning driving roll in a surrounding mode; the driving device is arranged on the tensioning car frame and used for driving the tensioning driving roll to rotate; the tensioning device is arranged outside the tensioning car frame, is connected with the tensioning car frame through a steel wire rope and tensions the tensioning car frame. The tensioning car of the belt conveyor has the advantages that the tensioning car frame is tensioned through the tensioning device, the driving device on the tensioning car frame drives the tensioning driving roll to drive the rubber belt, and therefore materials can be stacked in an inverse operation mode, the equipment cost is saved, and the tensioning car of the belt conveyor is compact and stable in structure, simple and reasonable in process layout, full in function and practical in tensioning and driving function, and can be widely used for belt conveyors of large bulk-material stacking plants such as power plants, steel mills, ports, wharfs and coal yards.