43results about How to "Harvesting" patented technology

The invention relates to an emulsified diesel additive for a coal flotation collector and a preparation method thereof. The additive comprises the following components in percentage by weight: 60 to 80 percent of sorbitan mono-fatty acid ester, 10 to 30 percent of polyoxyethylene sorbitan mono-fatty acid ester and 5 to 10 percent of sulphosalts anionic surfactant. The method comprises the following steps of: adding Span 80, Tween 80 and calcium dodecyl benzene sulfonate into a reactor, and stirring for 5 to 10 minutes under the rotate speed of between 600 and 1,200 r/min to obtain the additive. In the application of the additive, diesel and the additive are added into the reactor, stirred and added with water, and the mixture is stirred and stood for defoaming for 20 to 40 minutes to obtain emulsified diesel. An emulsifier of the invention has the simple composition, excellent performance and high stability; products can replace the diesel and are used as the collector in coal flotation; and the diesel collector can improve the recovery rate of clean coal by 1 to 2 percent and tailing ash content by 1 to 3 percent, reduce the production cost effective and increase the economic benefits.

The invention relates to a hematite low temperature flotation agent and a preparation method thereof; the agent is the water solution of 2-hydroxyl-5-alkyl-sodium benzoic acid ammonium salt and sodium aliphatate in a ratio of 1:1-3 and the concentration of each solute is not less than 0.02mol/L. The preparation method comprises the following steps: preparing sodium aliphatate solution, preparing hematite collector 2-hydroxyl-5-alkyl-sodium benzoic acid ammonium salt solution, and then mixing the two solutions. The agent can be used for hematite roughing, the dosage is 0.01-0.18% of hematite and the flotation temperature is 20-30 DEG C. the preparation method of the invention has simple method, non-toxic and sate raw materials and stable chemical compositions and properties of the preparedflotation agent.

The invention discloses a thio-carbonyl amide collector and a preparation method and application thereof. The collector is provided with an amino group and a thio-carbonyl group, and is prepared by reacting an amide with phosphorus pentasulfide. The thio-carbonyl amide collector is applied to flotation of sulfide ore, a strong collecting ability for copper sulfide ore, lead sulfide ore and gold, silver and other sulfide ore under neutral or alkaline conditions is achieved, and the degradation of thio-carbonyl amides in ore dressing tailings and the reversible regulation of the hydrophobicity of the sulfide ore are achieved. The thio-carbonyl amide collector has the advantages of good selectivity, wide pH value of ore pulp and the like, and the preparation method of the thio-carbonyl amidecollector has the advantages of simple process, high product yield and the like.

The invention provides a mushroom planting harvesting auxiliary device, and relates to the technical field of mushroom planting. The mushroom planting harvesting auxiliary device comprises a travelingtrolley, traveling wheels, a vibrating sifter mechanism, a conveying lifting mechanism, a harvesting mechanism, a baffle and a jet mechanism; the traveling wheels are arranged at the bottom end of the traveling trolley; the harvesting mechanism is arranged at the left end of the traveling trolley and used for harvesting mushrooms; the vibrating sifter mechanism is arranged at the middle part of the traveling trolley; the conveying lifting mechanism is arranged between the vibrating sifter mechanism and the harvesting mechanism for connection; the harvesting mechanism conveys the harvested mushrooms to the vibrating sifter mechanism through the conveying lifting mechanism; and the jet mechanism is arranged at the top end of the vibrating sifter mechanism. According to the invention, by arranging the traveling wheels at the bottom end of the traveling trolley, the traveling trolley can travel on the ground by the traveling wheels; the harvesting mechanism is arranged at the left end ofthe traveling trolley and used for harvesting the mushrooms, and an ascending and descending height of the harvesting mechanism is controlled by an electrical push rod so as to facilitate regulation of the harvesting mechanism according to sizes of the mushrooms and facilitate carrying out cutting on roots of the mushrooms.

The invention discloses a combined agent for pyrite flotation. The combined agent comprises No.2 oil serving as a foaming agent, and a collecting agent formed by mixing ethyl xanthate and butyl xanthate; and under the conditions that the mass content of iron is 36.7 to 37.4 percent and the mass content of kaolin impurity is 55.6 to 57.3 percent in pyrite, based on 30 to 40 mass percent pyrite pulp, the combined agent contains 1,000 g/t of No.2 oil, 200 to 400 g/t of ethyl xanthate and butyl xanthate mixed in a ratio of 1:1, 100 to 200 g/t of tannic acid, and 200 to 350 g/t of copper sulfate. According to the combined agent for flotation of the pyrite using kaolin as a main impurity, the ore concentrate grade of the pyrite is greatly improved, and the yield of the pyrite is also greatly improved; and meanwhile, the combined agent has the advantages of low equipment corrosion, low adverse effect on the human body and the environment and relatively low cost, and further improves the comprehensive benefit.

The invention relates to a hydroxy sulfo-group stearic acid soap collecting agent and a preparing method thereof. The structural formula of the hydroxy sulfo-group stearic acid soap collecting agent is shown in the specification, wherein C8H17 is the straight chain C8 alkyl group. The provided collecting agent is compared with an existing collecting agent, efficient selectivity is achieved for dolomite, the ore carrying capacity is high, the reagent usage amount is 1.32-1.56 kg/t of collophanite, foam fluidity is good, the foam scraping time is about 5-8 min, the defoaming time is about 3-5 min, and good collecting performance is achieved; raw materials are easy to obtain, and the beneficiation cost is low; and solubleness is good at the normal temperature and low temperature, and the hydroxy sulfo-group stearic acid soap collecting agent and the preparing method thereof are applicable to the collophanite flotation field.

The invention discloses an efficient flotation collecting agent for zinc sulfide and application of the efficient flotation collecting agent, and the efficient flotation collecting agent is composed of the following components in percentage by mass: 92%-98% of 2-hydroxyethyl dibutylcarbamodithioate, 1.5%-5% of 2-hydroxy-1-mercaptomercaptan and 0.5%-3% of octanol. According to the synergistic effect of the medicament, the 2-hydroxyethyl dibutylcarbamodithioate, the 2-hydroxy-1-mercaptomercaptan and a non-ionic collecting agent octanol are used as the zinc combined collecting agent. The combinedcollecting agent has good collecting performance on zinc sulfide minerals, the collecting performance on pyrite is weak, and the purpose of efficiently recycling zinc can be achieved. According to the zinc combined collecting agent HQ-Zn, when a higher zinc recovery rate is obtained, the dosage of copper sulfate is 1/5-1/2 of that of copper sulfate in a sodium butyl xanthate system, and the dosage of HQ-Zn is 1/4-3/5 of that of sodium butyl xanthate. After the agent and the method are adopted, raw ore containing 0.3%-5% of lead, 0.3%-7% of zinc and 1%-25% of sulfur is treated, the zinc gradein the zinc concentrate can be larger than 50%, and the zinc operation recovery rate is larger than 88%.

The invention discloses a triester-based quaternary ammonium salt positive ion collecting agent. The general formula I of the collecting agent is as follows, FORMULA, wherein n is any integer from 1 to 3, R is selected from straight chain or branched chain alkyl groups of C12-C21, and X is selected from a helium atom or a bromine atom. A molecule of the triester-based quaternary ammonium salt positive ion collecting agent contains a hydrophilic group hydroxyl which is easy to dissolve; when being applied to mineral flotation, the collecting agent is high in collecting performance and selectivity; formed foams are fine, fragile and easy to eliminate; when the collecting agent is used, no acid is needed to be added for dissolving, so that equipment cannot be corroded; meanwhile, the collecting agent is good in flotation effect under a low-temperature condition; the preparation technology is simple and easy to operate; the triester-based quaternary ammonium salt positive ion collecting agent is environment-friendly.

The invention belongs to the technical field of mineral flotation, and particularly relates to brand-new application of an acyl carboxyl sulfur nitrogen ester compound as a metal ore flotation collecting agent. The invention finds that the compound can generate a synergistic effect on the basis of the structure of molecules, mutual coupling of groups in the molecules and the like, and the collecting performance of a collecting agent on metal ores can be effectively improved.

The invention provides a semi-automatic pyrethrum harvesting device, which includes a mobile trolley, a storage battery, an adjustment bracket, a lifting mechanism, a cutting mechanism, a collection box and a pushing mechanism. The storage battery is arranged on the mobile trolley, and the left side of the adjustment bracket The half body is set on the mobile trolley, the lifting mechanism is set on the right half of the adjustment bracket, the lifting mechanism includes a lifting rake and two first electric push rods, the cutting mechanism is set on the lifting rake, and the cutting device includes a cutting rake And the second electric push rod, the collection box is arranged on the left half body of the adjustment bracket, the push mechanism is arranged on the upper part of the adjustment bracket, the push mechanism includes a push plate and the third electric push rod battery is the first electric push rod, the second electric push rod The push rod and the third electric push rod provide power. The device can smoothly realize the picking of pyrethrum by using the lifting of the lifting rake and the cutting of the cutting rake, and improves the picking efficiency compared with pure manual picking.

The present invention discloses a method for cultivating phellinus igniarius with double-bag conjoined stacking rows. The method comprises the following steps: a cultivating base is selected, fungus cultivating bags are manufactured and cultivating is conducted; yellow color turning management is conducted: the fungus cultivating bags with fully grown mycelia are transferred to a greenhouse for continuous cultivating to finish color turning of the mycelia; opening is conducted in the fungus cultivating bags after the color turning; the fungus cultivating bags after the opening are placed squarely to form fungus bag stacks, fungus bag openings of the fungus bag stacks face downwards, the fungus bag stacks are arranged upside down on a rectangular land bed, distances between the two adjacentfungus bag stacks in a horizontal direction are 30.0 cm-40.0 cm, and distances between the two adjacent fungus bag stacks in a vertical direction are 10.0 cm-20.0 cm; the openings of the two adjacentfungus cultivating bags in the horizontal direction in the fungus bag stacks are diagonally paired; center distances of the openings of the two adjacent fungus cultivating bags in the horizontal direction in the fungus bag stacks are 6.0-8.0 cm; and placement is completed, field cultivating is conducted at 26-28 DEG C and humidity of 90%-95% for 180 days, and harvesting is conducted. The method can obviously shorten production cycle of the phellinus igniarius and improve a utilization rate per unit area of a cultivation site and yield per mu.

The invention belongs to the technical field of mineral processing, and particularly relates to a multi-polar-group non-vulcanized ore flotation combined collecting agent and a preparation and use method thereof. The multi-polar-group non-vulcanized ore flotation combined collecting agent is prepared from the following components in mass percentage: 82-94% of 1-octoxyl 5-carboxyl para-decyl amine, 3-9% of alpha-bromo-octanoic acid and 3-9% of 3-octoxyl propylamine. The multi-polar-group non-vulcanized ore flotation combined collecting agent disclosed by the invention is used for reverse flotation of quartz with hematite iron ore, direct flotation of CaF2 with fluorite ore and direct flotation of apatite with phosphorite, is good in selectivity and high in collecting performance, and can realize effective separation of target minerals from other minerals.

The invention relates to a combined collecting agent for low-grade fluorite ore separation, and belongs to the technical field of mineral processing, the combined collecting agent mainly comprises the following raw materials in percentage by mass: 55-70% of acid oil, 10-25% of C14-C18 alkyl petroleum sodium sulfonate; 5-10% of sorbitan fatty acid ester; and 3-10% of sodium abietate. The invention further discloses a preparation method and application of the combined collecting agent. The combined collecting agent is better in dispersity and selectivity, stable in agent property, free of sticky foam, easy to dissipate and resistant to low temperature, and normal-temperature flotation can be achieved. The method is simple in preparation process, easy to operate and low in cost.

The invention relates to a multi-joint accurate positioning carthamus tinctorius harvesting mechanical arm and a harvesting method. The multi-joint accurate positioning carthamus tinctorius harvesting mechanical arm comprises a binocular vision recognition system, a vertical lifting mechanism, a multi-joint connecting module, a motor driving device, a filament harvesting mechanism and a negative pressure collecting mechanism. The multi-joint connecting module comprises a middle connecting block, a front end connecting block and a rear end connecting block; the rear end connecting block is fixedly connected with the top end of the vertical lifting mechanism; the binocular vision recognition system is used for collecting a carthamus tinctorius filament image; the motor driving device can correspondingly drive the front end connecting block and each middle connecting block of the multi-joint connecting module to move at a certain angle in the horizontal plane to reach the required position; and the filament harvesting mechanism comprises a soft profiling gripper, a cutting device, an electric push rod and a harvesting box. The binocular vision recognition system recognizes carthamus tinctorius and the filament harvesting mechanism positions the carthamus tinctorius, the soft profiling gripper accurately clamps and feeds the carthamus tinctorius, fruits are protected and clamped more stably, a cutter set cuts the roots of filaments, and the filament breakage rate is reduced.