The below are the patents listed to TAIYUAN HAILIFENG TECHNOLOGY...

The below are the patents listed to TAIYUAN HAILIFENG TECHNOLOGY DEV CO LTD

Composite additive for high-strength high temperature and high moisture resisting porous granular nitramine

The invention relates to a waterborne composite additive which can improve the physical properties of porous granular nitramine. The composite additive is characterized by consisting of internally added full water soluble powder and an ointment-shaped outer wrapping agent. The internally added full water soluble powder consists of an enhancer, an anti-crystal change agent, a diffusant and the like. The ointment-shaped outer wrapping agent consists of a water repellent, an anti-crystal change agent, an enhancer and the like. The composition additive is provided by the invention to overcome the deficiencies of additive for porous granular nitramine researched by predecessors that the porous granular nitramine product is low in strength, easy to block in high temperature and moist environments, more foam in production process of powder aqueous liquor, high cost due to imported raw materials and the like in actual use. The composite additive has the characteristics that not only is high-strength porous granular nitramine prepared, but also the product can be stored for three months in high temperature and moist environments, and the shatter value is maintained at 90%. The composite additive provided by the invention can be further used as an effective anti-blocking agent for preparing a high nitrogen nitryl compound fertilizer. The fortified concentration of the composite additive provided by the invention is 0.10-0.12%.

http://patentsobserver.com/public/patent/show.action?toShow=CN-201310079856-A

Rotary-drum granulator with fluidized bed

The utility model relates to a rotary-drum granulator with a fluidized bed, which belongs to the technical field of granulation in chemical industry. The rotary-drum granulator with a fluidized bed comprises a rotary drum, wherein a fluidized bed is arranged in the rotary drum; a fluidizing zone, a gas-distributing chamber and an fluidized-air pipeline are arranged in the fluidized bed; a molten-slurry inlet pipe is arranged below the fluidized-air pipeline, and spraying nozzles are uniformly arranged on the pipeline; 20 to 22 groups of shoveling plates are uniformly arranged on the inner wall of the rotary drum and are obliquely arranged on the rotary drum; a fluidized-air inlet and the molten-slurry inlet pipe are arranged at one end of the rotary drum, a product outlet and an end cover of a material-outlet section are arranged below the molten-slurry inlet pipe, a returned-material inlet and an end cover of a material-inlet section are arranged at the other end of the rotary drum; and air outlets are respectively arranged at two ends of the rotary drum. The rotary-drum granulator with a fluidized bed provided by the utility model can economically and efficiently produce large-particle products with high degree of sphericity, high strength and low caking property, operates reliably, is widely applicable to medium-scale production of nitride, sulfate, phosphate, carbamide, compound fertilizers and the like, and is especially suitable for the production of large-particle products.

http://patentsobserver.com/public/patent/show.action?toShow=CN-201020693628-U

Method for manufacturing composite millipore filter element for efficiently removing arsenic and fluoride in drinking water

The invention relates to a method for manufacturing a shaped filter medium for removing harmful elements in water, in particular to a method for manufacturing a composite millipore filter element for efficiently removing arsenic and fluoride in drinking water. The problem of purifying drinking water in high arsenic and fluoride districts in China is solved. The composite millipore filter element for efficiently removing arsenic and fluoride in drinking water is manufactured by using modified zeolite powder, copper zinc alloy powder and ultrahigh molecular weight polyethylene as raw materials. The manufacturing method comprises the following steps of: mixing the polyethylene, the modified zeolite and the copper zinc alloy powder according to a certain mass ratio; molding, sintering at 170-250 DEG C for 1-3 hours, and heating in a stepped mode. When used for purifying drinking water in high arsenic and fluoride districts, the composite millipore filter element has the advantages of high efficiency, convenient operation and low operational cost. The defects of easy loss and inconvenient management of a bulk filter material and large size and large occupied area of used equipment are overcome.

http://patentsobserver.com/public/patent/show.action?toShow=CN-201010278369-A