41results about How to "Achieving sustainable production" patented technology

The invention discloses topdressing for fostering eucalyptus. The topdressing is used for fertilizing eucalyptus plantation, and is prepared from raw materials of macroelements of nitrogen, phosphorus and potassium, and microelements of calcium, magnesium, silicon, boron, zinc, copper and molybdenum by the processes of crushing, mixing, pelletizing and the like; the topdressing for fostering eucalyptus comprises the following effective components by weight percent: 18-32% of nitrogen, 3-12% of phosphorus pentoxide, 8-22% of potassium oxide, 5-12% of calcium oxide, 1-5% of magnesium oxide, 2-5% of silica, 0.01-1% of boron, 0.01-1% of zinc, 0.01-1% of copper, and 0.001-0.1% of molybdenum. Correspondingly, the invention also discloses a fertilizing method of the topdressing for fostering eucalyptus. By adopting the topdressing, kinds of necessary nutrients for eucalyptus growth can be met, the fast-growing advantages are fully developed, unnecessary waste of fertilizer nutrients can be reduced, the disease resistance, the wind resistance and the cold resistance of the eucalyptus can be enhanced, and scientific fertilization can be achieved.

The invention discloses an efficiency damped and sealed vertical mill. The efficiency damped and sealed vertical mill comprises a star rack and a mill roller assembly, wherein the mill roller assembly works under the driving action of a suspension swing arm mechanism; the suspension swing arm mechanism comprises a vertical shaft arranged in a through hole of a dovetail slotted disc, a gravity support device connected with the mill roller assembly is arranged at the top of the vertical shaft, and a rotating assembly is arranged on the vertical shaft; the rotating assembly comprises an upper bearing arranged in a bearing cavity at the lower part of the vertical shaft in a sleeving manner, a wear-resistant sleeve and a lower bearing, and the inner hole wall of an upper bearing gland buckled on the upper bearing extends upwards along the vertical shaft so as to form a jacket; and the bottom of the dovetail slotted disc of the star rack is fixedly connected with a seal sleeve, and the seal sleeve extends downwards and is wrapped outside the jacket; and upper and lower oil seals and upper and lower seal steel discs are arranged in an annular cavity formed between the inner wall of the seal sleeve and the outer wall of the jacket, and a grease seal cavity is formed between the upper and lower oil seals. The efficiency damped and sealed vertical mill can ensure the high tightness of a bearing housing, is high in system stability, is low in maintenance rate, and can realize continuous production for users. Compared with the same class of machines, the efficiency damped and sealed vertical mill can increase the yield by 30%.

The invention discloses a treatment device applied to recover excessive hydroquinone after DHPPA is synthesized. Especially, the recovery device comprises a solution flash evaporation kettle, a condenser, an oil-water separator and an extracting agent receiving tank, wherein an extracting agent MIBK (Methyl Isobutyl Ketone) and hydroquinone raffinate are contained in the solution flash evaporation kettle; the top of the solution flash evaporation kettle is connected with the top of the condenser through an evaporating pipe; the bottom of the condenser is connected with the top of the oil-water separator; the bottom of the oil-water separator is connected to the top of the solution flash evaporation kettle through a reflux pipe; the side wall of the oil-water separator is connected to the top of the extracting agent receiving tank through a delivery pipe; a vacuum channel is arranged at the top of the extracting agent receiving tank. The treatment device disclosed by the invention can be used for recycling the extracting agent, obtains sufficient hydroquinone, greatly increases the product yield, saves the cost and reduces the consumption; and the treatment device disclosed by the invention can not generate a large amount of waste water when in use and can not cause the environment pollution, thereby really realizing the environment-friendly and resource-saving sustainable production.

The invention discloses a zero-discharge acidic etching waste liquid circulation regeneration method and system, which adopts acid concentration technology and tail gas recovery and reuse technology, effectively solves the metal copper in the waste liquid and makes the etching liquid regenerate and reuse, without waste liquid increase The device system includes etching solution treatment system, regeneration solution circulation system, liquid distribution system and chlorine recovery system. The etching solution treatment system includes etching production line (1), mother liquor storage tank (2), electrolyzer and The dissolution absorption system (6), the electrolytic cell includes the cathode cell (3) and the anode cell (5), the regeneration liquid circulation system includes the regeneration liquid storage tank (10) and the regeneration liquid treatment system (11), the method includes electrolysis, chlorine gas treatment And regeneration liquid treatment and other steps. The beneficial effects of the invention are: the system is used for treating waste acidic etching liquid, can extract metal copper, and has the advantages of off-line production, cost saving, resource saving, and the ability to prevent environmental pollution.

The invention provides a method for harmlessly planting Dendrobium officinale, comprising the following steps: S1. configuring growth medium; S2. selecting and preparing the soil; S3. cultivating and planting; S4. managing water and fertilizer; S5. managing diseases and insect pests. Among them, adding golden sunflower compound biological fertilizer and CM biological nitrogen-fixing fertilizer in the process of configuring the growth medium stage can effectively prevent and control snails, slugs and soil-borne diseases and insect pests that harm Dendrobium officinale, and in the stage of pest management, use photosynthetic bacteria, fertile Fertilizer No. 2 microbial soil amendment, anthrax fungus spirit, Huaguoshiqing No. 1, Pseudomonas fluorescens, snail shark pine oil molluscicide and other pure biological source insecticides and fungicides are used to prevent and control the growth of Dendrobium officinale, which not only solves the problem of The current planting of Dendrobium officinale urgently needs to solve bottlenecks such as prevention and control of snails and slugs and reduce pesticide residues.