51results about How to "Pollution" patented technology

The invention relates to a production method of PTFE (Poly Tetra Fluoro Ethylene) rubber rollers. The production method comprises the following steps of enabling PTFE resin fine powder to be produced into a blank and placing the blank into a constant temperature furnace; placing the PTFE blank into a sintering furnace; enabling the outer shape, the inner shape and the size of the blank which is taken out to meet the needs of the rubber roller through machining, enabling a steel core of the rubber roller to be machined into a metal core rod and enabling the inner diameter of the blank and the outer diameter of the steel core to be machined according to the size ratio; enabling the size well-processed blank to be uniformly baked under the high temperature, enabling the blank to sleeve the well machined steel core directly after the blank is taken out, enabling the blank to sleeve the steel core firmly in an oil pressure pushing and squeezing mode and then cooling; enabling the steel molding blank which is cooled into the normal temperature to be machined into the various types of rubber rollers according to the figure. The PTFE rubber rollers have the advantages of overcoming the defects that the traditional rubber rollers are short in service life, easy to age and the like, greatly reducing the production cost of rubber roller users and being particularly suitable for industries of papermaking, galvanization, pickling and the like.

The invention discloses an all-weather fire and smoke real scene simulation training apparatus mainly used for simulating the phenomenon of combustion development of combustible matters in the air of a real fire scene, conducting researches on the development process of fires, training the reaction ability of fire-fighting personnel according to different fires, overcoming the fear, and putting out the fires accurately, effectively, and rapidly. According to the apparatus, various types of fire scenes can be simulated via the adjustment of the flow of solid combustible particles and combustible gas so that various simulation project trainings are realized; a host computer automatic control system is employed to perform safety protection and automatic record and analysis of training data; a combustor employs combustible gas as the fuel so that pollution to the surrounding environment is prevented; and an all-weather high-power automatic igniter is applicable to different weathers, and the training can be normally realized in weathers such as strong wind or heavy rain.

The invention relates to a sea grass land restoration and reconstruction technology and particularly relates to a natural ripening accelerating and sowing method and device for a subtidal eelgrass reproductive plant. The method comprises the steps of clamping an eelgrass reproductive plant on a natural sea grass land onto a main rope and a side rope of a device, and then, putting the device for fixing the eelgrass reproductive plant into a proper natural sea area to carry out natural ripening accelerating and sowing on the eelgrass reproductive plant, wherein the device is sequentially provided with a floating ball, the main rope and a dropstone from top to bottom, the floating ball and the dropstone are respectively arranged at two ends of the main rope, and the main rope of which one end is provided with the floating ball is provided with the side rope along the length direction. By using the natural ripening accelerating and sowing method and device, an eelgrass seed can ripen and naturally drop, so that the collecting problem that the eelgrass seed does not ripen or the ripened seed drops is solved, and the sowing difficulty of seabed sea grass in a relatively deep subtidal water area is also overcome; by combining the simple, convenient and effective eelgrass sowing method, an eelgrass sea grass land in the relatively deep subtidal water area can be conveniently and rapidly restored or reconstructed; and meanwhile the device disclosed by the invention can be recycled, so that the cost can be reduced, and the used material cannot pollute the sea area.