94results about How to "Does not affect reuse" patented technology

The invention discloses a fire-resistant cable bridge. The fire-resistant cable bridge comprises a bridge main body, a plurality of heat dissipation holes are formed in the side wall of the bridge main body, and a fireproof layer is fixedly attached to the inner wall of the bridge main body. A fireproof sliding plate for fire retardance and thermal insulation is arranged, and the bottom end of thefireproof sliding plate is clamped in the sliding groove. A fire retarding mechanism is arranged, and the fire retarding mechanism comprises a fixed wheel, a temperature sensing cavity and a push rod; a temperature sensing cavity is fixed on the bottom wall of the outer side of the bridge main body; a temperature sensing expansion piece is arranged in the temperature sensing cavity; the temperature sensing expansion piece is heated to expand; the push rod can be pushed, and then the conical side surface of the push rod head can push the fixed wheel so as to drive the fireproof sliding plate to slide and then seal heat dissipation holes, therefore, in case of a fire, high temperature can be automatically sensed to seal the cable bridge, and the fireproof layer in the bridge main body is used for stopping fire and insulating heat; and the fireproof sliding plate can be pulled to slide and reset under the action of the elastic force of the reset spring, so that the cable bridge has ventilation, heat dissipation and fire resistance, and can be automatically reset without influencing repeated use.

The invention discloses a device of removing arsenic and mercury in flue gas. The device comprises a denitration system, a dust remover, a magnetic separator, a mechanical screening machine and an injection system, wherein the denitration system is connected to a hearth, the outlet of the denitration system is connected to the inlet of the dust remover, the dust remover is connected to the magnetic separator and the mechanical screening machine, and the magnetic separator and the mechanical screening machine are connected to a pipeline at the front of the inlet of the denitration system through the injection system. The invention further discloses a method of recycling magnetic beads and calcium-rich ash in fly ash, and simultaneously removing the arsenic and the mercury in the flue gas by utilizing the device. According to the method provided by the invention, the gaseous arsenic in the flue gas is effectively removed, the elemental mercury in the flue gas is subjected to catalytic oxidation, and the method and the device of simultaneously removing two heavy metal pollutants containing the arsenic and the mercury in the flue gas can be provided; the magnetic beads and the calcium-rich ash are recycled.

The invention discloses an iron-based rare earth oxygen storage type composite solid solution adsorbent. The iron-based rare earth oxygen storage type composite solid solution adsorbent comprises Fe x Ce y La z PR m Y n o (3x+4y+3z+3m+3n) / 2 , x+y+z+m+n=100%. The preparation method comprises the following steps: 1) dissolving the cerium salt in water, adding an oxidizing agent, and stirring to obtain a mixed solution; 2) adding a polyethylene glycol dispersant to the mixed solution obtained in step 1) to dissolve, and then adding lanthanum Salt, iron salt, praseodymium salt or yttrium salt are stirred until dissolved to obtain a precursor solution; 3) adding the precipitant dropwise to the precursor solution obtained in step 2) until the pH value is between 8-10, aged at room temperature, separated, Obtain the precursor of the adsorbent; 4) dry and calcinate the precursor obtained in step 3) to obtain an iron-based rare earth oxygen storage type composite solid solution adsorbent, which is contacted with the flue gas through a fixed bed, a fluidized bed or a particle spraying method, To achieve the purpose of efficient and integrated control of heavy metal and NOx emissions even under low temperature / low chlorine / low oxygen flue gas conditions.