31results about How to "Good input cost" patented technology

The invention discloses a co-production system and a co-production method for biomass carbon, gas, wood tar and wood vinegar. The co-production system comprises a biomass dry distillation kettle, a high-temperature heating furnace, a water cooling device, a washing device, a liquid separation device, a gas storage tank, a water-ring vacuum pump, a compressor, wood tar storage tank and a wood vinegar storage tank, wherein the liquid separation device separates wood vinegar and wood tar in the mixed liquid obtained by gas-liquid separation of the water cooling device; the co-production method comprises the following steps: 1, charging; 2, high-temperature carbonization: water cooling and gas-liquid separation, washing, gas storage and separation and storage of liquid matters; and 3, obtaining of the biomass carbon after the high-temperature carbonization. The co-production system for the biomass carbon, gas, wood tar and wood vinegar has the advantages of reasonable design, convenient processing, simple mounting arrangement, easy operation and good effect; and the co-production method has the advantages of convenient realization, high yield, low cost, fast co-production and relatively high production purity and has obvious economic and social benefits and wide popularization and application prospect.

The invention discloses a full-set dismantling and installing construction method of a bridge overpassing an existing line. Full-set dismantling and installing construction is conducted on a plurality of beam segments needing to be dismantled of a used beam to be dismantled from front to back. The full-set dismantling and installing construction method comprises the steps that firstly, a pavement layer of the bridge surface is milled; secondly, roof-propping is conducted on the beam segments; thirdly, preparatory work is conducted before hoisting; fourthly, hoisting and moving-out are conducted; fifthly, one beam segment is installed after replacement; sixthly, full-set dismantling and installing construction of the next beam segment is conducted, specifically, full-set dismantling and installing construction is conducted on the next beam segment needing to be dismantled of the used beam to be dismantled according to the first step to the fifth step of the method; and seventhly, the sixth step is repeated once or more than once till full-set dismantling and installing construction of all the beam segments needing to the dismantled in the used beam to be dismantled is completed. The method is simple in step, reasonable in design, easy and convenient to implement and good in using effect, full-set dismantling and installing construction of the bridge overpassing the existing line can be completed easily, conveniently and rapidly, the construction process is safe and reliable, the construction period is short, and the method is economical and practical.

The invention discloses a dielectric loss Tan delta test method and tester. The test method comprises the steps of: first, current and voltage signal collection: detecting the work current and work voltage of an electrical device to be tested in real time, and collecting data through a signal collection circuit; and second, signal processing: processing current values and voltage values collected at each sampling time according to a sampling sequence, wherein the current value and voltage value processing comprises the steps of: 201, signal receiving and synchronous storage; and 202: calculation of dielectric loss Tan delta at a current time: data group creation and analysis and processing of signals of a next sampling time. The tester comprises a current detection unit, a voltage detection unit, a signal collection circuit and a data processor. The test method has the characteristics of reasonable design, easy realization, sound use effect, great instantaneity and high test precision, and can conveniently and rapidly test the dielectric loss Tan delta of an electrical device to be tested.

The invention discloses an elevator maintaining method based on radio frequency card and elevator operating state. The elevator maintaining method includes the steps of (1) preliminary preparatory work, wherein the preparatory work includes wiring of an elevator remote supervision terminal and manufacturing of maintenance regulations; (2) maintenance regulation issuing, wherein after the elevator remote supervision terminal is started, an upper supervision mainframe sends the maintenance regulations to the elevator remote supervision terminal; (3) maintenance supervision, wherein after the elevator remote supervision terminal receives the maintenance regulations, multiple maintenance processes recorded on the maintenance regulations are supervised according to the sequence of maintenance time, and the supervision process includes the following steps of (301) maintenance reminding, (302) maintenance personnel identity recognition, (303) maintenance supervision information generating and uploading, (304) maintenance supervision information synchronous receiving and storing. The method is simple in step, reasonable in design, convenient to implement, good in using effect and capable of effectively supervising maintenance conditions of an elevator.

The invention discloses a crossing existing line bridge girder dismounting method. A dismounted bridge girder is a girder crossing an existing railway line and is formed by splicing a plurality of girder segments to be dismounted from front to back. During complete set dismounting construction of any segment to be dismounted, the process comprises the following steps that firstly, a bridge deck pavement is milled, specifically, the bridge deck pavement of the girder segment constructed currently is milled; secondly, the girder segment is jacked up, specifically, the girder segment constructed currently is horizontally jacked upwards through a vertical jacking device, so that the girder segment constructed currently is separated from two supporting piers; thirdly, preparation operation before hoisting is conducted; and fourthly, the girder segment constructed currently is horizontally hoisted upwards through a bridge girder erection machine and moved to the outer sides of the two supporting piers. The method is simple in step, reasonable in design, easy and convenient to construct and good in application effect, the complete set dismounting construction process of the crossing existing line bridge girder can be completed easily, conveniently and rapidly, and the construction process is safe and reliable, the construction period is short, and the method is economic and practical.

A waste-water treatment and recovery for power plant is carried out by classification treating for waste water, gathering it into water-collecting pool, adding into medicine, adjusting pH value, entering the waste water into micro-filter membrane filtering system from micro-coagulator, flowing micro-filtered water into medium water tank, delivering it into safety filter by lifting pump, inverse penetration treating by high-pressure pump, flowing concentrated water into chemical neutralization pool and flowing fresh water into recovering pipe net of factory. Its advantages include low cost, better water quality, safety and stability and high recovery efficiency.

The invention discloses a steel arch frame assembling and transverse moving system and method for an upper bearing type arch bridge construction. The system comprises an arch frame assembling device for assembling a steel arch frame and an arch frame supporting and transverse moving device for supporting and transversely moving the assembled steel arch frame. The method comprises the following steps that 1, a bridge lower supporting structure and steel arch frame support are constructed, and a horizontal moving slide way and a lifting device are installed; 2, a cable crane and the arch frame are transferred to the device in section for construction; 3, the steel arch frame is assembled; 4, an arch supporting frame is jacked; 5, the arch supporting frame is lowered; 6, a transverse moving driving device is installed; 7, the arch supporting frame is transversely moved; and 8, the arch supporting frame is jacked. The steel arch frame assembling and transverse moving system and method forthe upper bearing type arch bridge construction are reasonable in design, convenience and simple are realized, the use effect is good; the arch frame assembling device and the arch frame supporting and transverse moving device are matched and used, the steel arch frame assembling process can be completed simply and quickly, the steel arch frame can be transversely moved through the arch support and the transverse moving device, and the purpose of constructing the two arch ribs through the steel arch frame is achieved.

The invention discloses a deck type box arch bridge reconstruction method. The method comprises the steps: 1 first-dismantled arch bridge dismantling; 2 first-constructed arch bridge constructing, wherein the steps comprises 201 bridge lower portion support structure constructing, 202 arch rib constructing and 203 follow-up constructing; 3 later-dismantled arch bridge dismantling; 4 later-constructed arch bridge constructing, wherein the steps comprises 401 bridge lower portion support structure constructing, 402 arch rib constructing and 403 follow-up constructing. The method has the advantages that the step design is reasonable in step design, construction is simple and convenient, the using effect is good, two to-be-dismantled arch bridges of a reconstructed deck type arch bridge are dismantled first and later, and the later-dismantled arch bridge of the reconstructed deck type arch bridge is dismantled after construction of a first-constructed arch bridge in a newly-built arch bridge is completed to meet the smooth traffic requirement; and in addition, two arch ribs are constructed first and later by adopting one steel arc frame, the steel arch frame is supported and transversely moved by adopting an arch frame supporting and transverse moving device, and therefore the reconstruction efficiency of the deck type arch bridge can be effectively improved.

The invention discloses a steel arch frame section moving and hoisting system and method for construction of an upper bearing type arch bridge. The system comprises a cable crane for hoisting arch frame splicing sections and an arch frame sectional transferring device for moving the arch frame splicing sections one by one; and the arch frame sectional transferring device comprises a splicing section moving device for horizontally moving the arch frame splicing sections one by one and a horizontal moving channel for horizontally moving the splicing section moving device, and the horizontal moving channel is arranged on a rear side beam section supporting structure. The method comprises the following steps of 1, constructing a bridge lower supporting structure; 2, constructing the cable crane and the arch frame sectional transferring device; and 3, assembling the steel arch frame. According to the system, the design is reasonable, the using effect is good, the arch frame sectional transferring device is used in cooperation with the cable crane, the arch frame sectional transferring device moves the arch frame splicing section to the hoisting region of the cable crane, the cable cranehoists the arch frame splicing section into place, and the steel arch frame assembling process can be simply and rapidly completed.

The invention discloses a process for treating wastewater in fermentation industry based on an activated aerobic sludge-artificial ecological wetland composite system. The process comprises the steps of carrying out sufficient aerobic treatment on wastewater in the fermentation industry by using an aeration tank filled with activated sludge, then, transferring the wastewater to an artificial ecological wetland system, and discharging the wastewater after the treated wastewater is up to the standard. The process has the advantages that aerobic treatment and the design of the artificial ecological wetland system are organically combined to carry out purification treatment on the wastewater in the fermentation industry, so that a good dirt removal effect is achieved, the removal rate of chemical oxygen demand in wastewater in yeast fermentation industry can be up to 95.7%, the removal rate of ammonia nitrogen can be up to 91.2%, and the removal rate of total phosphorus can be up to 95.0%. The activated aerobic sludge-artificial ecological wetland composite system disclosed by the invention is scientific and reasonable in design, simple and convenient in operation, low in investment cost, good in comprehensive dirt removal effect for the wastewater in the fermentation industry and suitable for popularization and application.

The invention discloses a construction method of arch ribs of a deck type box arch bridge. The constructed deck type arch bridge comprises the two arch ribs which are symmetrically arranged on the left and right sides. During the construction of the arch ribs of the deck type arch bridge, the construction method comprises the following steps: (1) performing the construction of a lower supporting structure of the bridge; (2) performing the construction of the arch ribs. The process of the construction of the arch ribs comprises the steps of performing the construction of steel arch supports, mounting translation slideways and lifting devices, assembling a steel arch, lifting up an arched support frame, performing the construction of the earlier-construction arch rib, laying the arched support frame downward, mounting transverse-movement driving devices, transversely moving the arched support frame, lifting up the arched support frame, performing the construction of the later-construction arch rib, and removing the arched support frame. The construction method of the arch ribs of the deck type box arch bridge is reasonable in design, simple in construction and good in application effect. The two arch ribs are constructed one after the other by virtue of the steel arch, and the steel arch is supported and transversely moved by virtue of an arch supporting and transverse-movement device, so that the construction process of the two arch ribs can be completed simply and quickly. The construction process is safe and reliable. The construction efficiency of the deck type arch bridge can be effectively improved.

The invention relates to an automatic dredging control method of economic output of a cutter suction dredger, and belongs to the technical field of engineering ship automation control. The automatic dredging control method comprises the steps that firstly, according to the historical data of fuel consumption per million cubic meters and dredging output under the current construction working conditions, the ratio of "dredging output/fuel consumption per million cubic meter" is analyzed, the most economical construction output target value is determined by a method of taking the maximum ratio under the working condition, and the corresponding underwater pump vacuum and mud suction flow rate is determined by the output target value, the mud flow rate and underwater pump vacuum suction are kept in a control range to control the lateral moving speed, and dredging devices are combined to act according to a predetermined order to achieve an efficient cutter suction dredger automatic dredgingoperation with the best economic benefit. The automatic dredging control method can obtain the optimal ratio of economic output to cost input, can greatly reduce the labor of dredging workers, improves construction quality, ensures equipment safety, reduces fuel consumption, and greatly improves economic benefits.

The invention relates to the field of batteries, in particular to a high-rate lithium iron phosphate positive electrode material, a preparation method thereof, a positive electrode thereof and a battery. The invention provides a high-rate lithium iron phosphate positive electrode material. The high-rate lithium iron phosphate positive electrode material comprises lithium iron phosphate and carbon coating the surface of the lithium iron phosphate, and the particle size of primary particles is 30-70nm. The primary particle size is small and uniform, no large single crystal particles exist, the specific surface area is large, and a battery prepared from the material is high in capacity, good in cycle performance and excellent in rate and low-temperature performance. Experiments show that the 10C discharge capacity reaches up to 140 mAh/g or above, the-20 DEG C capacity retention rate is 90% or above, and the requirements of starting and stopping a power supply are met. The invention also provides a preparation method of the high-rate lithium iron phosphate positive electrode material, the preparation process is simple, the environment-friendly effect is realized, a precursor and expensive equipment do not need to be purchased, and the input cost is low.

The invention discloses a deck type arch bridge construction method based on a steel arch support. The constructed deck type arch bridge comprises a left arch rib and a right arch rib which are symmetrically arranged. When the constructed deck type arch bridge is constructed, the method comprises the steps of 1, constructing a bridge lower supporting structure; 2, constructing the arch ribs, wherein a steel arch support bearing is constructed, a translation sliding way and a lifting device are installed, the steel arch support is assembled, an arch supporting frame is jacked, the arch ribs areconstructed at first, the arch supporting frame is placed down, a translation drive device is installed, the arch supporting frame is moved transversely, the arch supporting frame is jacked, and post-construction arch ribs are constructed; 3, performing follow-up construction. The deck type arch bridge is reasonable in design, easy and convenient to construct and good in using effect; the steel arch support is adopted for constructing the arch ribs in success, an arch support bracket and the translation device are adopted for supporting and transversely moving the steel arch support, the construction process of the two arch ribs can be easily, conveniently and rapidly completed, the construction process is safe and reliable, and the construction efficiency of the deck type arch bridge canbe effectively improved.