83results about How to "Guaranteed removal" patented technology

The invention provides a method for manufacturing a stainless steel water faucet for solving the process problem that articles with complex structures and thin walls such as a die cavity and the like are hard to be made from stainless steel at domestic, which comprises the following steps: using a finish cast die to manufacture a wax mould same as the blank of a water faucet valve body; after dipping slurry and adhering to sand on the wax mould, forming a sand mould in a through dewaxing in a dewaxing kettle; casting the stainless steel on the sand mould; and when the stainless steel is solidified, desanding the stainless steel through vibration to manufacture the blank of the water faucet valve body, wherein the outer wall of a water passage formed in the blank of the valve body is reserved with an opening; and after the blank of the water faucet valve body is formed, welding a cover plate to form the valve body which is then polished and assembled. The method for manufacturing the stainless steel water faucet has the advantages of simple process, high finished product ratio, economization of stainless steel materials and low cost, solves the process problem that the articles with the complex structures and the thin walls such as the die cavity and the like are hard to be made from stainless steel at domestic, and prevents the problem that the water faucet made from the stainless steel is easy to generate perforation and water leakage so that the finished product ratio is low because of the complex structure and the thin wall of the die cavity of the water faucet.

The invention provides a catalytic ceramic filter tube which is high in dust collection efficiency, can efficiently oxidize elemental mercury, can also efficiently reduce NOx, and achieves simultaneous dust removal and SCR denitration and a preparation method. The catalytic ceramic filter tube comprises a ceramic filter tube substrate, and a catalytic active component layer and a separation membrane which sequentially coat the ceramic filter tube substrate. The preparation method comprises the following steps: step 1. preparing the ceramic filter tube substrate by isostatic pressing molding; step 2. coating the ceramic filter tube substrate with a catalytic active component membrane to obtain a catalytic ceramic filter tube substrate; and step 3. preparing the separation membrane on the catalytic ceramic filter tube substrate. The catalytic ceramic filter tube provided by the invention can achieve integrated efficient removal of dust, NOx and elemental mercury in high-temperature flue gas (>300 DEG C), the service life of the catalyst can be prolonged through protection for the catalyst by the separation membrane and the substrate, and the structure arrangement of the ceramic filter tube can reduce the occupied area and running cost of equipment.

Disclosed is high-quality low-sulfur-content biodiesel production equipment.An aeration reaction pool is connected with a salt solution supply source and a raw oil supply source through pipelines respectively.The aeration reaction pool is connected with a butterfly type centrifugal machine through a pipeline.The butterfly type centrifugal machine is connected with an ultrasonic box through a pipeline.The ultrasonic box is connected with an oil-water separation tank through a pipeline.The ultrasonic box is further connected with a clean water source through a pipeline.The oil-water separation tank is connected with an atmospheric distillation tower through a pipeline.The atmospheric distillation tower is connected with a raw material storage tank through a pipeline.The raw material storage tank is connected with an esterification reactor through a pipeline and connected with the upper portion of the atmospheric distillation tower through a pipeline to form a low-boiling point material outlet.The esterification reactor is connected with a vacuum distillation tower through a pipeline.