7results about How to "Efficient processing effect" patented technology

The present application relates to a kind of powder processing device and method for improving powder sphericity and surface finish, including processing cylinder and multiple rotating mechanism, lower rotating mechanism includes stirring blade, can be rotated in positive direction, upper rotating mechanism includes shaping blade, can be rotated in positive direction or reverse direction.The stirring blade of lower rotating mechanism is a certain obtuse angle with the direction of rotation, can better lift up powder, the shaping blade of upper rotating mechanism includes two inclined planes of positive and negative direction.The rotating direction of upper and lower rotating mechanism is opposite first, the inclined plane of shaping blade towards the direction of rotation is opposite with the direction of movement of the powder lifted up, angle is close to vertical, impact and break up agglomerated powder and satellite ball, then the rotating direction of upper and lower rotating mechanism is same, the inclined plane of shaping blade towards the direction of rotation is close to the direction of movement of the powder lifted up, mainly with friction effect, improve powder surface finish.The stirring blade of lower rotating mechanism makes the friction effect between powder particles in cylinder, can also quickly improve the surface finish of powder.

The invention discloses a steel structure rust removal device for a construction site. The steel structure rust removal device comprises a walking plate trailer, a stirring box, a water storage box, a material storage box, a high-pressure pump, a liquid conveying pipe and an air compressor. The stirring box is fixed on the top surface of the walking plate trailer; a liquid outlet is formed in the bottom of one side wall of the stirring box; a water outlet communicated with the inner cavity of the stirring box is formed in the bottom wall of the water storage box; grinding materials are contained in the storage box, and a discharging gate is hinged to the bottom end of the storage box so that the grinding materials can be put into the stirring box and stirred and mixed with water to form grinding liquid; the high-pressure pump is fixed on the outer wall of the stirring box; an inlet of the high-pressure pump communicates with the liquid outlet; one end of the liquid conveying pipe is detachably connected with an outlet of the high-pressure pump, and a high-pressure nozzle is fixed at the other end; the air compressor is fixed to the top face of the walking plate trailer to provide high-pressure air, and an air outlet of the air compressor communicates with the liquid conveying pipe through an air pipe. Water and grinding materials are stirred to form mixed grinding liquid, the mixed grinding liquid is sprayed to the surface of the steel structure through high pressure for rust removal operation, and secondary pollution to the environment is avoided.

The invention discloses an ozone oxidation catalyst for casting waste gas treatment and a preparation method thereof, and belongs to the technical field of waste gas treatment. The mordenite is used as a catalyst carrier, the fluorinated silane is loaded on the surface of the mordenite through a reflux liquid phase deposition method to construct a hydrophobic barrier, the modified mordenite is obtained, the ozone decomposition performance of the modified mordenite in a high-humidity environment is remarkably improved, and further in an intermittent micro-negative pressure environment, the ozone decomposition performance of the modified mordenite is improved. A transition metal oxide is loaded on the surface of the modified mordenite to obtain the ozone oxidation catalyst, and through optimization of a preparation process, namely roasting activation and intermittent micro-negative pressure treatment are combined with a proper proportion of metal oxide sol, the number and accessibility of active sites of the catalyst are enhanced, and the ozone catalysis performance of the catalyst is promoted to be further improved. The ozone oxidation catalyst is applied to the treatment of casting waste gas, especially toluene-containing waste gas, and can show efficient, stable and high-adaptability treatment effects under different working conditions.

This utility model provides an organic waste gas treatment tower, including a vertical tower body and a tower top. The vertical tower body has an air inlet, and the tower top has an exhaust outlet. The bottom end of the exhaust outlet is connected to the top end of the vertical tower body. The vertical tower body contains an adsorption zone and a spray assembly. The spray assembly includes a drive mounting assembly, a spray pipe, a liquid receiving pipe, a first nozzle, and several nozzle groups. The spray pipe is vertically arranged and connected to the drive mounting assembly, which is connected to the vertical tower body. The liquid receiving pipe is located above the drive mounting assembly, with one end connected to the top end of the spray pipe and the other end connected to a purification liquid assembly located outside the vertical tower body. The first nozzle is located at the end of the spray pipe furthest from the liquid receiving pipe, and several nozzle groups are spaced apart at the end of the spray pipe furthest from the liquid receiving pipe. This invention solves the technical problem in the prior art where the spray scrubbing only sprays downwards, resulting in insufficient gas-liquid contact area and the existence of spray blind zones, allowing some waste gas to escape directly without treatment, thus leading to poor waste gas treatment effect.

This application discloses a grey water reuse treatment device, including a filtration mechanism, a reuse water tank, and a waste tank. The upper end of the filtration mechanism has a grey water zone A, which is connected to the drain outlet of a washbasin via an inlet pipe. The middle part of the filtration mechanism has a clean water zone B, which is connected to the reuse water tank via a filter suction pipe and a backwash suction pipe. The end of the filtration mechanism has a wastewater discharge zone C, which is connected to the waste tank via a wastewater discharge pipe. The grey water reuse treatment device provided by this application can effectively improve the service life of the filter by backwashing, eliminating the need for frequent filter element replacements and reducing maintenance costs. Simultaneously, the addition of a bactericide inhibits the growth of microorganisms.

The present application relates to the oilfield wastewater treatment and resource recycling technical field, disclose a kind of oilfield wastewater collaborative oxidation treatment method, comprising the following steps: the oilfield wastewater to be treated is introduced into flocculation reaction tank, and polyaluminium chloride is added to the oilfield wastewater to be treated, and after wastewater pH is adjusted, stirring is carried out, so that suspended oil, emulsified oil, colloidal particles and polyaluminium chloride hydrolysis product in wastewater collide, destabilize, coagulate, and form floc.The present application is coupled by micro-nano bubble enhanced air floatation and electroflocculation-ozone-hydrogen peroxide depth, so that the oilfield wastewater to be treated is sequentially subjected to flocculation, air-type micro-nano bubble air floatation, electroflocculation-ozone-hydrogen peroxide collaborative deep oxidation and standing precipitation treatment, which can eliminate the need for separate oxidation unit, simplify the process flow and improve the integration of the treatment process.

The invention discloses a method for removing oxalic acid and salts thereof in wastewater by using hydrogen peroxide. The method comprises the following steps: pretreating wastewater containing oxalic acid and salts thereof, and adjusting the pH value to 3.5-4.0; adding hydrogen peroxide into the adjusted wastewater, and uniformly stirring to obtain mixed wastewater; and feeding the mixed wastewater into an activated carbon reaction column in a pulse water feeding manner, and removing oxalic acid and salts thereof in the water. According to the method, the removal efficiency of oxalic acid is effectively improved, and compared with the prior art, the method has the advantages that the process is simple, secondary pollution is avoided, and the wastewater treatment efficiency and environmental friendliness are greatly improved.