34results about How to "Protect environmental resources" patented technology

The invention relates to the technical field of building prefabricated components, in particular to an environment-friendly and energy-saving connecting piece for a composite outer wallboard and a production method thereof. The connecting piece comprises a connecting rod, wherein an anchoring piece used for anchoring in an inner blade wall is arranged at one end of the connecting rod, and a clamping piece used for clamping steel bars in an outer blade wall is arranged at the other end of the connecting rod; the connecting rod comprises a metal core rod; the metal core rod is wrapped with an anti-aging rubber soft sleeve; the clamping piece is connected with the metal core rod; and the anchoring piece comprises a movable body which is made of metal and at least three claw blocks which are also made of metal, and all the claw blocks surround the movable body and the metal core rod and are uniformly distributed at intervals. The connecting piece and the production method have the advantages of avoiding the damage to outer leaf concrete caused by repeated frost heaving of the connecting piece and improving the durability of the connecting piece; and by increasing the contact area of the connecting piece and heat insulation layers, the heavier heat insulation layers are prevented from being crushed by the connecting piece, the heat insulation effect is indirectly improved, the purposes of energy conservation and emission reduction are achieved, meanwhile, environmental resources are indirectly protected, and the environment-friendly effect is achieved.

The invention discloses an environment friendly, light composite temperature keeping wall and installing process thereof. The wall comprises EPS boards, pre-embedded column reinforcing bars and pre-embedded beam reinforcing bars. First concave slots are opened on one edge of the EPS boards, outward extending tables and an inward opened second concave slots are disposed on symmetric two edges adjacent to the edge, a column reinforcing bar accommodating pore is disposed on the EPS boards between the table and the second concave slot along the longitudinal direction of the board. Beam reinforcing bars are accommodated in the first concave slot. The process includes pre-embedding the column reinforcing bars, installing a ground beam, covering the pore of the EPS board on the top of column reinforcing bars, lowering a EPS board along a column reinforcing bar to the bottom in contact with the ground beam; lowering other EPS boards of the first layer by analogy; installing, binding beam reinforcing bars, rigid coupling a fire proof heat insulation layer, a fire proof heat insulation film and a impact resistant board on the outer surface of the EPS board, concrete casting for the first layer installation completion; making other layers by analogy. The invention is environment friendly, temperature keeping, light in weight, fast in installation speed.

The invention belongs to the light, insulation building field, in particular to an environment-friendly, light and window-forming composite insulating wall and a corresponding mounting method thereof. The wall comprises four pieces of EPS boards which can be mutually connected by bosses and depressed grooves; holes containing steel columns are arranged on the EPS boards; the steel columns are arranged in the depressed grooves which are mutually communicated; a pre-embedded insulation part is respectively arranged at one side, close to the window, of the left and the right EPS boards; and a fireproof insulation layer, a fireproof insulation film and an anti-impact board are sequentially fixedly connected with the outer surface of the EPS board. The method comprises the following steps: thesteel columns are pre-embedded and ground beams are mounted; the matching between the bosses and depressed grooves on the EPS boards is adopted to connect and mount the EPS boards; the mounting method of the EPS boards of other layers besides the first layer is based on the mounting method of the first layer; the steel beams are mounted and bundled and then the fireproof insulation layer, the fireproof insulation film and the anti-impact board are sequentially and fixedly connected with the outer surface of the EPS board; the concrete is cast; and after the first layer is completed, the otherlayers are mounted according to the mounting method of the first layer. The invention is characterized in that the wall is environment-friendly and light; the insulation effect is good; and the mounting speed is fast, etc.

The invention discloses an internal circulation type spraying room. The internal circulation type spraying room comprises a paint spraying room, a paint mist filtering system, an air conditioning system and a control system, wherein the paint mist filtering system is connected with the paint spraying room and used for filtering paint mists and supplementing fresh air, the air conditioning system is connected with the filtering system and used for exhausting waste gas and supplying air to the paint spraying room according to a certain proportion of fresh air and previous air, and the control system is connected with the paint spraying room, the paint mist filtering system and the air conditioning system and used for adjusting the proportion of fresh air and previous air and supplementing fresh air according to the concentration of the paint mists in the paint spraying room. According to the invention, gas with a certain enthalpy value can be recycled, and therefore the production cost can be saved.

The invention discloses a method recovering a water-soluble cutting fluid from a silicon wafer cutting fluid. The water-soluble cutting fluid is recycled by agitating, separating, decolorizing and evaporating the silicon wafer cutting fluid in a vacuum state. The method is convenient to operate, the water-soluble cutting fluid processed by the method has high utilization rate, the quality and production efficiency of silicon wafers are increased, high precision processing below TTV 10 mum is realized, and the qualified rate for cutting silicon wafers is more than 98%. When the water-soluble cutting fluid recovered by using the method is used during 1 mm / min high-speed cutting of emery wires, the production capacity is more than 2 times higher than that of the suspension mortar cutting way of the traditional machine. In addition, not only is the economic efficiency of an enterprise increased, but also the pollution caused by polyethylene glycol and silicon carbide is reduced, the emission amount of CO is greatly reduced, and environmental resources are protected.