48results about How to "Fewer returns" patented technology

The invention discloses a particle-typed composite fertilizer of humic acid and manufacturing method, which consists of dressing and karyosome, wherein the dressing contains nitrogen, phosphor and potassium. The manufacturing method comprises the following steps: graining humic acid; cladding; graining; solidifying fused fertilizer on the particle of humic acid; making the composite fertilizer dissolved into water without falling; fitting for large scale of agricultural product.

A processor-controlled electronic gaming device includes a base game, e.g., a set of reels, and a secondary game, e.g., a mechanical secondary indicator such as a wheel with secondary values arranged in positions thereon and a mechanism for indicating one of the positions and its associated secondary value. Access to the secondary game is achieved by a variety of trigger conditions. After achieving a successful trigger, the player may be required to place a wager on the outcome of the secondary game in order to activate it. Upon activation of the secondary game, the gaming device selects at least one of the positions and may provide a player a secondary award.

Highly shelf-stable electrically assisted transdermal drug delivery systems for delivering epinephrine, typically with an anesthetic such as lidocaine, are provided along with methods for making the highly shelf-stable epinephrine-containing transdermal delivery device. Highly shelf-stable packaged electrode assemblies for transdermal delivery of epinephrine also are provided.

The invention discloses a color drought-resistance water-retention sustained-release compound fertilizer and a method for producing the same, wherein the method comprises the followings steps of: measuring, crushing and uniformly mixing fertilizer raw materials, granulating by adopting an ammonia-acid method rotary drum granulating process, performing one-stage drying, semi-cooling and screening of grains, and sending the mixture to a coating machine; adopting a continuous melting rotary drum film-coating method coating process to perform compressed air atomization and uniform coating of color coating oil sprayed by a special nozzle; and adding a water-retaining agent and an anti-adhesive agent by a screw conveyor, and performing full stirring, cooling and packaging to obtain the finishedproducts. The color drought-resistance water-retention sustained-release compound fertilizer has the effects of drought resistance, water retention, nutrient preservation, soil condition improvement and environmental protection, and the appearance of the fertilizer has color marks; and when the fertilizer is applied to crops, the fertilizer has the advantages of increasing yield and incoming, along with simple production method, convenient operation, low cost and high benefits.

The invention relates to an ammoniation granulator and a compound fertilizer production technology by an amino acid method, aiming at solving the technical problems in the compound fertilizer production process that: biuret is easy to generate, the granulating effect is not good, the production efficiency is low and the energy consumption is high. An amino acid distributor of the ammoniation granulator is respectively and independently arranged, an amino spraying branch pipe provided with an inclined plane spout has an angle of 30 to 60 degrees with a vertical line on the cross section of a cylinder, the rotating directions of the inclined plane spout and the cylinder are consistent; the spout of an acid spraying branch pipe is correspondingly arranged in the opening direction of the inclined spout of the amino spraying branch pipe; and when ammoniation granulating, the granulator sprays liquid ammonia in a material layer with the pressure of 0.5 to 1.0MPa through the amino distributor, an acid distributor sprays sulphuric acid of 50 to 70 percent in the material layer with the pressure of 0.2 to 0.5Mpa, and each ton of solid material is injected with 15 to 25kg of liquid ammonia and 16.8 to 39.2kg of dilute sulphuric acid. The invention is applied in various raw materials and suitable for the scale production of various compound fertilizers; and the finished products have perfectly round and solid particles, are water resistant and movement resistant and not easy to be crushed and agglomerated.

The invention provides a method for preparing masterbatch with high powder content. The method comprises the following steps: various raw materials are prepared, a Banbury mixer is kept at constant temperature, all the carriers and 50-80 percent of or all powder components, lubricant, dispersing agent and coupling agent are placed in the Banbury mixer for kneading; after the remained functional components are placed in the Banbury mixer for kneading, the Banbury mixer barn is turned over; the materials are decanted into the feeding hopper of a single screw extruder through a transporting receptacle; by the forced feeding of the feeding hopper, the single screw extruder is used to obtain functional masterbatch with high powder content. The method is capable of solving the problem that feeding is difficult during direct production of high powder when blending modified plastics system is filled, and the problem of difficult processing in the modified plastics industry; the masterbatch with high powder content can also meet the requirements of downstream products, and used to produce injection-moulded or extruded products.

Disclosed is DIY consumer kit for making print personalized, structurally customized covers and cases used to protect mobile electronic devices. In all embodiments, covers and cases use an encapsulated bio-based compostable resin composite fused with external layers of organic carbon neutral reclaimed industrial fiber, this composite provides an inkjet receptive sheet that may be fed through any printer for consumer customization. These composites in sheet or roll form may be scored, laser cut and mirco-cut for all flat electronic devices to facilitate folding into a 3D form. Once printed, consumers may fold the 2D composite sheet, attach pre-cut layered adhesives, nano suction attachment pads and attachment clear plates for device placement on the interchangeable covers or cases. Nano rubber polymer suction pads provide locking cover attachment, attachment of the electronic device to other surfaces and enable angled viewing when the covers are folded in a stand configuration.

An object of the present invention is to provide a water absorbent resin which attains high liquid permeability and water absorbing speed, and which does not have problems of coloring and odor. The water absorbent resin includes: (A) a water absorbent resin particle having a carboxyl group; (B) a covalent surface crosslinking agent in which the number of carbons is not more than 10; (C) 0.001 mass % to 0.2 mass % of a water-soluble or water-dispersible polymer whose Log P is not less than 1.0; and (D) 0.001 mass % to 1 mass % of a water-soluble polyvalent cation. The water absorbent resin has not less than 20 g/g of a fixed height absorption (FHA) at a height of 20 cm.

An electrically assisted transdermal drug delivery system for highly effective electrotransport of an anesthetic and a vasoconstrictor producing clinically acceptable depth and duration of dermal anesthesia at a treatment site. In certain embodiments, the anesthetic comprises lidocaine and the vasoconstrictor comprises epinephrine.

The invention relates to a production method of a large-granule slow-release fertilizer, belonging to the technical field of manufacturing of fertilizers. The production method comprises the following steps: adding granular urea which is preheated to 50-100 DEG C into a rotating drum coating machine, and coating by using a mixed solution of polyisocyanate, polyalcohol, epoxy resin, dimethylbenzene and inorganic powdery filler as a coating material; after finishing the coating, adding monoammonium phosphate, potassium chloride (or potassium sulfate) and polyacrylamide solution, evenly mixing, and adding the mixture into an extrusion granulator to carry out extrusion granulation; and standing the granulated semi-finished product at 60-100 DEG C for 1-10 hours for curing, naturally cooling, and screening to obtain the finished product. The large-granule slow-release fertilizer with the diameter of 10-100 millimeters and the weight of 10-500g can be produced according to the size of the mold of the extrusion granulator. Compared with the common small-granule slow-release fertilizer, the large-granule slow-release fertilizer has the advantages of lower cost, stable nutrient release, uniform nutrition in every granule, and fixed weight, can implement precise fertilizer application, and reduces the fertilizer application frequency and labor investment.

The invention discloses an environment-friendly high-quality sand making building station system. A discharging port of a feeding and collecting bin is connected with a feeding port of a spill waterfall type vertical shaft through a pipeline, a discharging port of the spill waterfall type vertical shaft is connected with a feeding port of a primary powder concentrator, and a plate conveyor is placed below a discharging port of the primary powder concentrator. The system has the benefits as follows: 1, the gradation and fineness can be controlled according to demands of clients, so that different selling prices of products in different specifications can be obtained, and better economic effects can be obtained; 2, the capacity is high, finished products have superior granule shapes and thesand production rate is high; 3, the stone powder content and moisture content of sand can be controlled as required.

The invention relates to a special fertilizer for preparing granular rice from sandy raw materials and a preparation method and application of the special fertilizer. A calcium-magnesium-phosphate fertilizer, ammonium chloride and a granulating agent are mixed in the weight ratio of (30-70):(30-70):(1-10); the mixture is added into a granulator for granulation, then the granulated particle material is transferred into a drying machine for drying, the dried particle material is transferred into a cooling screening machine for cooling and screening, and the special fertilizer is obtained. Compared with the prior art, the calcium-magnesium-phosphate fertilizer and the ammonium chloride are put together, and a small quantity of granulating agent is added, so that granulation is easy, nutritional requirements of paddy rice are met, and the use quantity of other chemical fertilizers can be replaced and reduced.

The invention relates to a production method of a special network controlled-release fertilizer for eucalyptus, belonging to the technical field of preparation of fertilizers. The production method comprises the following steps: adding granular urea and monoammonium phosphate which are preheated to 50-100 DEG C into a rotating drum coating machine, and coating with a coating material; after finishing the coating, adding a potassium fertilizer and magnesium sulfate, evenly mixing, and adding the mixture into an extrusion granulator to carry out extrusion granulation; and curing and cooling the granulated semi-finished product by standing at natural temperature for 1-30 hours, and screening to obtain the finished product. The special network controlled-release fertilizer for eucalyptus with the diameter of 10-100 millimeters and the weight of 10-500g can be produced according to the size of the mold of the extrusion granulator. Compared with the common coated controlled-release fertilizer, the special network controlled-release fertilizer for eucalyptus has the advantages of lower cost, stable nutrient release, uniform nutrition in every granule, and fixed weight, can implement precise fertilizer application, and reduces the fertilizer application frequency and labor investment.

The invention discloses a method for preparing an organic and inorganic compound fertilizer by using urban sludge compost, which prepares the organic and inorganic compound fertilizer by using urban sludge compost as a main raw material and weathered coal, ammonium bicarbonate, urea, ammonium hydrogen phosphate, potassium sulfate and modified corn flour binding agent as auxiliary materials and byan ammoniation granulation process. The method has the advantages that: the nutrient utilization rate is high; the fertilizer effect is lasting; less material is returned; the granulation rate is high; and the product has high storage performance. The method is suitable for large-scale treatment of sludge compost. The prepared organic and inorganic compound fertilizer can be applied conveniently and keep nutrient balance and has lasting fertilizer effect.

The invention discloses a double-ammoniation pelletizing process which is characterized by comprising the following steps: I, preparing slurry; II, performing reactions in a tubular reactor; III, performing a double-ammoniation reaction. The production process disclosed by the invention is high in reaction efficiency, simple to wash and short in process procedure, washing water can be completely recycled, the obtained product is high in strength, granule surfaces are smooth, relatively round and glossy, a high pelletizing rate is achieved, a small amount of materials are turned back, the effective device utilization rate is high, and no clay is needed for pelletizing.

The invention discloses an oxygen-enriched production process of catalyst-grade antimony trioxide. The process comprises the following steps: taking natural gas as fuel and oxygen-enriched air as a combustion improver, supplying heat to an antimony white furnace through a combustion system, after the temperature rises to 700 DEG C, putting high-purity antimony into the furnace to be melted, and spraying oxidized oxygen-enriched air to the surface of antimony liquid to oxidize and volatilize the antimony; and supplying part of heat through heating to increase the temperature in a hearth reaction area to 1100 DEG C or above, at an outlet of a reaction chamber, enabling high-temperature antimony trioxide flue gas to pass through a flue gas quenching system, quenching the high-temperature antimony trioxide flue gas to 60-300 DEG C in the presence of air, and collecting the obtained product by using a cloth bag dust collection system so as to obtain the catalyst-grade antimony trioxide product with a full cubic crystal form, high purity and high whiteness. The clean fuel natural gas is used as production fuel for replacing traditional coke, fire coal or anthracite, energy consumption is reduced, the yield and recovery rate of antimony trioxide are increased, the impurity content in the product is reduced, and the whiteness of the product and other product indexes are improved.

The invention relates to a blanking device for exhausting and feeding, which is arranged on the top of a spiral drum and comprises a feeding cylinder and an exhausting feeding drum, wherein the feeding cylinder and the exhausting feeding cylinder are both arranged on the top of the spiral drum; a feeding input port is arranged on the top of the feeding cylinder while a feeding output port is arranged on the bottom; an exhaust port is arranged on the top of the exhausting feeding cylinder while an air inlet is arranged on the bottom; and the feeding output port of the feeding cylinder is communicated with the air inlet of the exhausting feeding cylinder. Compared with the prior art, the blanking device for exhausting and feeding has the advantages that the structure is simple, the practicability is higher, the gas in the mixed material can be efficiently exhausted, the phenomenon of returning materials is reduced, the machine is conveniently washed when the device is used for feeding resin, and the washing operation is simple, convenient and quick.

The invention discloses an ilmenite powder lifting hopper. The ilmenite powder lifting hopper comprises a rear base plate, a front base plate, a guide plate and a fixing and reinforcing plate, wherein the lower end of the rear base plate and the lower end of the front base plate are fixedly connected in a sealing mode to form a hopper V-shaped structure with an acute included angle; the guide plate is fixedly connected with the two sides of the rear base plate and the front base plate of the hopper V-shaped structure, and one end of the guide plate extends out of the front base plate to form a guide part; the fixing and reinforcing plate for installing a lifting chain is fixedly connected with the back surface of the rear base plate; the lower end of the rear base plate and the lower end of the front base plate are fixedly connected through an arc plate in a sealed mode. Furthermore, at least one arch breaking device is arranged in the hopper V-shaped structure, and the guide part of the guide plate is splayed outwards. The ilmenite powder lifting hopper can obviously reduce materials stuck to the inner wall of the hopper in the wet mineral lifting process and can unload the materials normally depending on the self weight, the materials will not fall down as blocks, the material returning phenomenon of a hopper lifter is obviously reduced, and the hopper lifter is well protected.

The invention discloses a production system of water-soluble compound fertilizer and a production method, and belongs to the technical field of production of compound fertilizer. The production systemcomprises a granulation section, an aftertreatment section, a tail-gas treatment section and a feeding and returning section, wherein the granulation section comprises a roller granulation device, anammonium-phosphate pretreatment groove, a regulating groove and a tubular reactor, and the ammonium-phosphate pretreatment groove, the regulating groove and the tubular reactor are connected in sequence by pipelines; the roller granulation device comprises a roller obliquely arranged in a front-rear direction, a feeding port at the front end of the roller, a discharging structure at the rear endof the roller, an acid mixer extending into the front part of the roller from the front part, and an ammonium tube bundle extending to the front part of the roller from the rear part; the rear part ofthe tubular reactor extends into the front part of the roller. The production system and the production method disclosed by the invention have the beneficial effects that ammonium-phosphate slurry isregulated to a proper condition by utilizing washing liquor, and then is introduced into a special granulation structure to realize granulation; a product with low water content and high granular strength can be obtained, and has the advantages of reduced caking property, strong caking resistance and good water solubility.

The invention relates to a material returning prevention feeding device of a jaw crusher. The material returning prevention feeding device comprises a shell, a material stirring cavity is formed in the shell, an opening is formed at the upper left end of the material stirring cavity, a baffle is arranged at the position of the opening and can open or close the opening, a rotating rod is arranged in the material stirring cavity, four material stirring plates are fixed to the rotating rod, and a rectangular cavity is formed in the shell; and two first sliding blocks alternately sliding left and right are arranged in the rectangular cavity, blocking rods are arranged on the first sliding blocks, when the two blocking rods slide left and right along with the first sliding blocks, the right ends of the two blocking rods can enter and exit from the material stirring cavity, a second sliding block is arranged at the upper ends of the two blocking rods, the right end of the second sliding block extends into the material stirring cavity, and when the second sliding block slides leftwards, the baffle can be driven to close the opening. The second sliding block does not break away from the material stirring cavity, the blocking rods cannot stretch out of the material stirring cavity, and when the two first sliding blocks slide to the position where the main view projections coincide, a first switch is pressed; and the two blocking rods alternately block the material stirring plates, it is ensured that a conveyor belt conducts timed and quantitative discharging on a crushing opening of the jaw crusher, and the material returning phenomenon is reduced.