33results about How to "Reduce depreciation costs" patented technology

A process for preparing the dewatered fruit or vegetable by vacuum freeze drying and hot air drying includes such steps as providing raw fruit or vegetable, washing, peeling or removing kernel, slicing, scaling for deactivating enzyme, conditioning, freezing, freeze drying, hot air drying, and packing.

The invention discloses a plasma enhanced chemical vapor deposition (PECVD) device and a method which are used for simultaneously coating films on a plurality of large-area base plates. A plurality of large-area base plates are arranged in rectangle plasma chambers comprising a plurality of parallel exciting electrodes and grounding electrodes at intervals and in staggered arrangement. A plurality of plasma regions are uniformly formed among all adjacent and opposite electrodes. The large-area electrode surfaces of all plasma chambers are used in a great quantity of the same, fixed and grouped film coatings of the PECVD system of a single vacuum chamber.

A foamed Mg alloy-pearlite composition is prepared from expanded pearlite and Mg or Mg alloy through vacuum percolation casting. Its advantages are light weight and easy control of foam pore.

The invention discloses a barrel-shaped metal organic chemical vapor deposition reaction tube which comprises a barrel body. The barrel type metal organic chemical vapor deposition reaction tube is characterized in that the barrel body is in a barrel shape with an open left end and an open right end, and a graphite barrel, an electric stove wire barrel and a molybdenum sheet heat insulation barrel are sequentially sleeved in the barrel body. The left end and the right end of the electric stove wire barrel are respectively provided with a left heat insulation molybdenum sheet and a right heat insulation molybdenum sheet which are sleeved on an electrode stem. A multiple-layer spray tube is arranged in the barrel body and is composed of a liquid cooling tube, an ammonia spray tube and a metal organic source spray tube. An ammonia nozzle connected with the ammonia spray tube and a metal organic source nozzle connected with the metal organic source spray tube are arranged on the inner wall of the barrel body, and an exhaust port is arranged on the inner wall of the barrel body. The barrel type metal organic chemical vapor deposition reaction tube has the advantages that the throughput can be raised on a large scale, the product cost can be reduced, the production efficiency can be increased, the surface temperature uniformity of graphite is good, the product percent of pass is high, and the energy consumption is low. The productivity is 20 times as high as that of three kinds of popular MOVCD great machines at present.

The invention provides a method for treating domestic wastewater with a porous multilayer hollow PTFE-MBR membrane. The method comprises the steps that domestic wastewater is collected through a pipe network and then enters a wastewater treatment station, wherein gratings are arranged at the front end of the wastewater treatment station, and the gaps between the gratings is 5 mm; water out of the gratings automatically flows into an oil separation tank; water out of the oil separation tank enters a regulating tank; water out of the regulating tank is lifted to an anoxia tank through a submersible sewage pump, wherein the primary function of the anoxia tank is denitrification; water out of the anoxia tank automatically flows into an aerobic tank, wherein the aerobic tank performs the functions of making active sludge carry out aerobic respiration, further decomposing organic matter into inorganic matter and removing pollutants; water out of the aerobic tank automatically flows into a membrane bioreactor; water of the membrane bioreactor is sucked to a discharging tank through a self-priming pump and then discharged into a natural water body through a Parshall trough. According to the method, the occupied area is small, the technological process is short, the water quality of outlet water is stable, it is ensured that outlet water is clear and transparent, and high-quality produced water is obtained.

The invention provides high-temperature sewage self-desalting multi-effect distillation equipment which comprises a flash tank, a multi-effect evaporator and a condenser, and material water distribution devices and a heat exchange tube bundle are arranged in the multi-effect evaporator; the multi-effect evaporator is formed by connecting a plurality of evaporators in series, the plurality of evaporators are sequentially called as a first-effect evaporator, a second-effect evaporator, and the like till a last-effect evaporator from front to back, the flash tank is arranged at the upstream of the multi-effect evaporator, and one material water distribution device is arranged at the inner top of each evaporator; and steam generated by flash evaporation of high-temperature sewage in the flash tank is used as first-effect heating steam, residual sewage in the flash tank is used as material water, a heat source of the high-temperature sewage self-desalting multi-effect distillation equipment adopts high-temperature sewage discharge wastewater, a low-temperature steam heat source is obtained through low-temperature flash evaporation, heat of the sewage is utilized to the maximum extent, and therefore, the heat value of the maximum cost of desalting water production is basically zero.

The invention provides an energy-saving environment-friendly steel cord hot-dip coating copper-zinc alloy layer and a thermal treatment production process thereof in the process of steel cord production. The process comprises electrolytic degrading, washing, coating an assistant coating agent, drying, coating copper in hot-dip mode and austenitizing, coating zinc in hot-dip mode and isothermal treatment and diffusion annealing. The temperature for the process of coating the copper in hot-dip mode and austenitizing ranges from 1100 DEG C to 1140 DEG C, and the temperature for the process of coating the zinc in hot-dip mode and diffusion annealing ranges from 550 DEG C to 600 DEG C. After diffusion annealing, mass percentage of zinc in the copper-zinc alloy coating layer ranges from 30%-37%. The production process respectively utilizes the two procedures of coating the copper in hot-dip mode and austenitizing and coating the zinc in hot-dip mode and isothermal treatment to replace four procedures of austenitizing, copper coating, isothermal treatment and zinc coating, solves the problems of heavy metal iron sewage discharging, waste gas exhaust during austenitizing heating and lead and powder pollution during isothermal treatment in the existing production process, and has the advantages of being good in environment protection performance, high in production efficiency and low in production cost.

The invention relates to a schizochytrium limacinum fermentation medium. By improvement of a fermentation medium formula, the seawater crystal in the medium is replaced by other inorganic salts without chlorine, thereby not only avoiding chloride ion seriously corroding the fermentation equipment, and but also being in favour of DHA accumulation.

The invention discloses a discrete layout movable steam injection device and a steam injection process thereof. The discrete layout movable steam injection device are used for steam injection of a plurality of oil production wellheads distributed in each area of an oil field, and the multiple oil production wellheads communicate to an underground oil layer through a Christmas tree and an underground oil pipe. The discrete layout movable steam injection device comprises a movable boiler, a movable pipeline, a plurality of steam thin pipelines, a plurality of water, electricity and gas stations and water, electricity and gas thin pipelines, wherein one end of the movable pipeline can be quickly and detachably connected with the movable boiler; one end of each steam thin pipeline is connected with one oil production wellhead, and the other end of each steam thin pipeline can be quickly and detachably connected with the other end of the movable pipeline; the multiple water, electricity and gas stations are distributed in all areas of the oil field, and each water, electricity and gas station comprises a water interface, an electricity interface and a gas interface at fixed positions; the water, electricity and gas thin pipelines are arranged at all the water, electricity and gas stations, and the movable boiler is connected with water, electricity and gas interfaces at the fixed positions of the water, electricity and gas stations through the water, electricity and gas thin pipelines. Nearby steam injection can be achieved, the length of a steam injection pipeline is shortened, and heat loss is reduced.

The invention belongs to the field of road and bridge engineering, and discloses a low-abrasion wheel set which can greatly reduce abrasion between a rail and a rim surface and greatly reduce depreciation cost of a rail vehicle wheel set and comprises a wheel set body, the wheel set body comprises wheels, and each wheel comprises a tread portion, a rim portion and a coupling bearing for connecting the tread portion and the rim portion together. When a curve passes, the tread portion and the rim surface can independently rotate in the curve passing process, so that rolling friction instead of sliding friction is generated between the rim surface and the side surface of the rail in the curve passing process. The invention further provides a rail vehicle applied to the multi-small-radius curve rail, and the service life of the rail vehicle can be greatly prolonged by using the low-abrasion wheel set.

The invention relates to a quantitative mortar circulation system. The quantitative mortar circulation system is characterized by comprising a mortar stirring bucket (1), a membrane pump (2), a mortar circulation bucket (3) and a mortar tank (4), wherein the mortar circulation bucket (3) comprises a bucket body (3.1), the bottom of the bucket body (3.1) is connected with a discharging pipe (3.7), a guiding tee joint (3.8) and a valve (3.9) are arranged on the discharging pipe (3.7), the guiding tee joint (3.8) is connected with a hose (3.10), the top of the hose (3.10) is connected with a lifting pipe (3.11), the top of the lifting pipe (3.11) is connected with an overflow tee joint (3.12), the position of an overflow port (3.12.2) of the overflow tee joint (3.12) is connected to a material returning cylinder (10) through a material returning hose (9). The quantitative mortar circulation system has the advantages of being high in weighing accuracy and saving raw materials and labors.

The invention discloses a pellet chain grate bulk material comprehensive treatment method and system. In a unit time period, bulk materials generated by a chain grate are collected and screened, the particle size, strength, temperature and water content of oversize coarse bulk materials are detected, then comprehensive performance index values of the bulk materials are obtained through calculation according to a bulk material sorting mathematical model, qualified bulk materials are screened out and directly recycled to a rotary kiln to be roasted, and unqualified oversize coarse-particle bulk materials and undersize fine-particle bulk materials are used as pelletizing raw and auxiliary materials to be directly pelletized. According to the method, the bulk materials in all sections of the chain grate are collected and treated in a centralized mode, recycling of the bulk materials in a pellet production system is realized, outward transport disposal is avoided, the outward transport cost, the stockpiling cost of a stockyard, the material loss cost and the mixed ore depreciation cost are lowered, meanwhile, the environment is improved, and the production efficiency is improved.