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

The invention provides a suspension-cultured cell of Acer ginnala Maxim for producing gallic acid, which is characterized in that a proper amount of callus of Acer ginnala Maxim is inoculated in a solid cultivation medium containing WPM+TDZ 0.002-0.01 mg / L+6-BA 0.05-0.15 mg / L for successive transfer culture for 15 to 20 days to obtain a first successive generation; a well-growing callus is transformed into a triple WPM liquid medium containing a large amount of elements and having a pH value of 5.8 to 6.0, in the presence of a hormone including TDZ 0.002 to 0.010 mg / L and 6-BA 0.05 to 0.15 mg / L and 2% to 3% sugar to obtain the fresh weight of an inoculum size of 20 to 40 g / L; and the culture conditions comprises the temperature of 23 to 25 DEG C, the rotation speed of 110 to 130 rpm, the illumination time of 8 to 10 h / d, the illumination intensity of 1,400 to 1,700 Lx, and the culture period of the first successive generation of 7 to 15 days. The cells are collected after one period of 20 to 30 days, with the fresh weight up to 478.2 g / L and the dry weight up to 22.3 g / L, wherein the content of gallic acid is up to 2.29%, the output of gallic acid is 0.51g / L, and the gallic acid with the amount of 6.1227 g / L can be collected in one year. The invention can improve the output of suspension of gallic acid in Acer ginnala Maxim by cell engineering method for the first time, which solves the raw material problem for the production of gallic acid. The invention has the advantages of easy operation, short cycle, low cost as well as greatly saved labor force and material resource,improved labor productivity and protection of environment and Acer ginnala Maxim resources.

The invention belongs to the technical field of building concrete materials, and particularly relates to a reconstructed chromium slag powder used for radiation-proof mortar and concrete, and a preparation method and an application thereof. The reconstructed chromium slag powder is prepared from certain amounts of chromium slag powder, molten slag and a catalytic fluxing component by melting, water quenching, drying and crushing. The reconstructed chromium slag powder prepared in the invention can be used as an admixture in the mortar and concrete to improve the radiation resistance of the mortar and concrete, has good active characteristics, and has no untoward influences on other basic performances of the mortar and concrete after being mixed, and all indicators of the obtained concretemeet the requirements of national standards.

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 provides a method for producing 7-xylose-10-deacetyl paclitaxel and a special culture medium thereof. By adopting the culture method and the special medium, a callus for producing the 7-xylose-10-deacetyl paclitaxel can be obtained, and the content of the 7-xylose-10-deacetyl in the callus is 0.005-0.009 percent. For the method, the 7-xylose-10-deacetyl in a yew plant is firstly obtained through a cell engineering method. The produced 7-xylose-10-deacetyl paclitaxel can be used as a raw material to be converted into paclitaxel through a simple process. The method solves the problem of raw materials on the production of paclitaxel, is easy to operate and low in cost, has a short cycle, and can protect yew plant resources.

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.