65results about How to "Save hoisting costs" patented technology

The invention relates to flat membrane elements and components for water treatment, which are characterized in that the front face and the back face of a supporting plate of membrane elements are respectively provided with a plurality of scattered face bosses higher than the supporting plate. The adjacent membrane elements are combined and are supported at intervals by means of the face bosses of the supporting plate. The supporting plate can not be tilted and deformed, the condition that the distance of each point between the planes of the adjacent membrane elements is unchanged is ensured, aerated scouring is uniform, and the membrane pollution is lowered. Moreover, the thickness of the supporting plate can also be obviously reduced, and the thickness is reduced from original 5.5 to 6.0mm to about 3.5mm, so that the weight and the cost of the supporting plate are lowered by about 30 percent, the bosses are arranged at intervals, the adjacent intervals of assembled membrane components can also be changed according to actual requirements, and the condition that the distance of the membrane elements can be regulated is realized. Furthermore, the method of assembling the components of the membrane elements is also changed, the function of side inserting assembly can be realized, the structure of a membrane bracket is simplified, and the versatility of a component frame is enhanced. The front face and the back face of the supporting plate are additionally provided with transverse flow passages with transverse penetration, so that the resistance of water collection and flow deflection is small, the transmembrane pressure difference of a system is small, the water output of gravitational pressure difference can be adopted for filtering, and the running energy consumption of the system can be greatly lowered.

The invention relates to a method for hoisting large scale equipment, in particular to a method for hoisting a large-tonnage pressing machine frame. The method comprises the following steps: tower beams are arranged on two sides of the installation position of the pressing machine frame; a large scale hoisting device is arranged on the tower beams; a sliding shaft and a falling shaft are arrangedrespectively in the front and in the back of the pressing machine frame; the sliding shaft is arranged at the top of the pressing machine frame and in the back thereof, and the falling shaft is arranged at the bottom thereof and in the front thereof; the sliding shaft slides rotationally forwards on a slideway; the falling shaft rotationally falls down, until the pressing machine frame is upright; a hoisting point is changed in the position of the sliding shaft; and the installation is completed after the pressing machine frame falls down for a certain distance. Compared with the prior hoisting method, the method of the invention has the outstanding advantages that: the height of the tower is reduced, so that all work can be done in the well-installed workshop; the hoisting equipment in the workshop is fully utilized, so that the hoisting problems of all hoisting equipment are solved and the hoisting cost of the prior art is saved; the construction period is shortened, and the safety is guaranteed; and the method is suitable for the hoisting installation operations in narrow spaces or at high altitude, underground, and in other construction situations.