6results about How to "Increase settlement rate" patented technology

The invention relates to the technical field of metallurgical equipment, and discloses a horizontal waste heat boiler and an anti-slagging optimization method and system.The system comprises an uptake flue, a radiation chamber, a convection chamber, an ash hopper, a baffle, a heat exchange tube panel, a sieve pore baffle and a streamline baffle; the method comprises the steps that a horizontal waste heat boiler numerical simulation model is built, and a baffle, a heat exchange tube panel and other components are subjected to model building according to the equal proportion of 1: 1; grid division is carried out on the built horizontal waste heat boiler numerical simulation model, and local flow characteristics and temperature distribution are captured; a multiphase mass point grid method is used, gas phase motion is described by adopting a volume average Navier-Stokes equation under an Euler framework, and particle motion is tracked by adopting a Newton second law under a Lagrange framework; and selecting a value simulation model and a value simulation method suitable for the gas-solid two-phase flow and heat exchange process of the waste heat boiler. The heat exchange capacity of the waste heat boiler is improved; the recovery rate of smoke particles is increased; and slagging of parts in the waste heat boiler is reduced.

The invention relates to the technical field of construction dust removal, and discloses a road construction site environment-friendly dust removal device and a dust removal method.The road construction site environment-friendly dust removal device comprises a water pipe body and an atomization nozzle installed at the upper end of the water pipe body, the water pipe body is divided into a lower pipeline and an upper pipeline, a first corrugated pipe is installed on the upper side of the upper pipeline, and a connecting ring is installed on the upper side of the first corrugated pipe; the connecting ring is connected with the atomizing nozzle, a movable block used for controlling the water flow speed is rotationally installed in the upper pipeline, a moving plate and a movable plate used for guiding the moving path of the movable block are installed in the upper pipeline, the water pipe body is installed on the side portion of the side plate, and a pushing air cylinder used for adjusting the moving height of the atomizing nozzle is installed on the side portion of the side plate. In addition, in the water mist spraying process, through cooperation of the pushing air cylinder, the water mist spraying state makes reciprocating motion from top to bottom, so that the water mist can more evenly cover all heights, and the probability that dust particles are captured and settled by the water mist is greatly increased.

The invention provides a complex microbial inoculant for cadmium treatment and a preparation method and application thereof, the complex microbial inoculant comprises biochar, hydroxyapatite and a gas-producing klebsiella inoculant, and in the complex microbial inoculant, the surface of the biochar is loaded with a large amount of gas-producing klebsiella and phosphate ions. When the prepared complex microbial inoculant is applied to cadmium treatment, the cadmium fixation effect is excellent, meanwhile, environmental pollution is avoided, and both environmental benefits and economic benefits are considered.

The application discloses a kind of bio-based abrasive, including adsorptive abrasive 25-35 parts by weight, additional weight material 10-25 parts;Tensile fiber 25-40 parts, adhesive 10-15 parts, binder 25-50 parts, defoaming agent 2-5 parts, polishing powder 10-20 parts.A kind of bio-based abrasive preparation method, including step one, using adsorptive abrasive to make adsorptive abrasive particles;Step two, the adsorptive abrasive particles and additional weight material mixed are made;Step three, additional weight abrasive particles, defoaming agent, binder, polishing powder, tensile fiber are all put into mixing equipment and mix;Step four, the mixed material is placed into mold heat pressing solidification, forms bio-based abrasive.Preparing adsorptive abrasive particles, and adsorptive abrasive particles and additional weight material are combined, additional weight abrasive particles are made, and additional weight abrasive particles can improve the sedimentation rate of wear powder, reduce the harm of dust to human body.In addition, binder uses bio-based resin binder, reduces the generation of waste gas in processing and use process.

This utility model belongs to the field of wastewater treatment technology, specifically relating to a wastewater recycling and treatment system for deionized water production. It includes a wastewater tank and a finished water tank, with a sedimentation device and a filtration device installed between them. A resin softener and a concentration device are also installed between the wastewater tank and the finished water tank. Wastewater in the wastewater tank sequentially passes through the sedimentation device, filtration device, resin softener, and concentration device before flowing into the finished water tank. This utility model, by adding a resin softener and a concentration device to the existing sedimentation and filtration devices, constructs a multi-stage treatment system of "sedimentation-filtration-softening-concentration," deeply removing impurities from the wastewater and improving the water resource recovery rate.

The present invention belongs to the technical field of hydraulic structure design of water conservancy and hydropower engineering, and specifically relates to an alternating vertical filtering overflow water intake type sedimentation tank. The first diffusion section, the primary sedimentation tank, the overflow section, the second diffusion section and the secondary sedimentation tank are arranged in sequence according to the water flow direction; the first sluice and the water diversion channel are obliquely intersected at 30° to 60°, and water is diverted obliquely; the water in the primary sedimentation tank flows through the water gushing holes on a section of the rectifying plate into the primary filter tank, and after being filtered by a section of the filter layer, it flows into the water collection port from a pair of overflow water channels, and overflows from the baffle wall at the water outlet end of the primary filter tank into the water collection port; the water in the secondary sedimentation tank flows through the water gushing holes on the second section of the rectifying plate into the secondary filter tank, and after being filtered by the second reverse filter layer, it overflows from the baffle wall at the water outlet end of the secondary filter tank into the water outlet, sediments downward, and water is taken upward; the above oblique water diversion and upward water intake method effectively filters large particles of sediment into the tank.