63results about How to "Solve easy caking" patented technology

The invention discloses a preparation method of a low-permeability oral rehydration salt. The low-permeability oral rehydration salt comprises sodium chloride, potassium chloride, sodium citrate and glucosum anhydricum, wherein the granularity of the powder passing through a 100mesh sieve is greater than or equal to 95%. The preparation method is characterized by comprising the following steps: 1) respectively weighing prescription amount of sodium chloride, potassium chloride, sodium citrate and glucosum anhydricum for late use; 2) respectively taking a certain amount of one or more of glucosum anhydricum, sodium chloride, potassium chloride and sodium citrate to combine and crush in common, and filtering by the 100mesh sieve; 3) crushing the residual glucosum anhydricum and filtering by the 100mesh sieve; 4) evenly mixing the mixture in the step 2) with the glucosum anhydricum in the step 3) inside a mixer, and split charging. By adopting the preparation method, the problem that the sodium chloride, the potassium chloride and the sodium citrate are easily blocked after being crushed into fine powder is effectively solved; no agglomerate phenomenon is generated in the overall mixing process; the mixing process is quick and smooth; the mixing uniformity and the granularity achieve the requirements of Chinese pharmacopoeia 2010 version.

The invention discloses a particle drilling method, and belongs to the technical field of oil gas drilling engineering. The particle drilling method comprises steps of particle injection and particle recovery. The particle drilling method is characterized in that a. a slurry and particles are injected in a well through an injection device in the step of particle injection; b. a mixture of particles, rock debris and the slurry returned from the well is drained into a magnet separator after passing pipes from a rotary control head on a derrick floor in the step of particle recovery, and the magnet separator sends separated particles into a storage tank, and sends separated rock debris and slurry into a slurry tank; and c. particles in the storage tank are injected into the well again to drill through the injection device, to form a drilling cycle. According to the particle drilling method, the mixture of particles, rock debris and the slurry returned from the well is directly drained into a magnet separator through an exit device at the well head, particles can be separated and stored, a problem in the prior art that a slurry may leak from a plurality of positions because rock debris and the slurry are directly pumped into a drilling crew vibrating screen can be solved, and the risk of environmental pollution can be greatly reduced.

The invention discloses a concentrated natural centrifuged latex preserved without ammonia. According to the invention, a natural latex anti-coagulation preservative is added into the latex, the natural latex anti-coagulation preservative is an ammonia-free preservative and comprises raw materials consisting of potassium sulfate, sodium tripolyphosphate, sodium carbonate, sodium silicate pentahydrate, citric acid and sodium benzoate; butyl p-hydroxybenzoate is not used in the natural latex anti-coagulation preservative, and sodium tripolyphosphate is used instead, so the flora inhibition effect of the natural latex anti-coagulation preservative is maintained, and the problem that the latex is easy to cake after being stored for a long time due to poor water solubility of butyl p-hydroxybenzoate is solved; moreover, sodium hydrogen sulfite is replaced with potassium sulfate, good water solubility is achieved, the antibacterial range of the anti-coagulation preservative can be widened, and meanwhile, the problem that the preservative is heavy in smell due to addition of sodium hydrogen sulfite is solved; and raw material cost is reduced by reducing the use amount of sodium carbonate.The preservative has the advantages of low cost, no toxicity and no pollution, and can effectively enhance latex quality.

A closed multi-room fluidized bed sludge drying method is provided, which is a sludge drying method having the advantages of simple equipment structure, convenient operation, strong sludge adaptability, high thermal efficiency, safety, continuity, stability, etc. After the mechanically dewatered sludge is mixed with the back-mixed sludge, the mixture is dried room by room in an inert particles multi-room fluidized bed dryer (3). The first room and the second room of the inert particles multi-room fluidized bed dryer (3) adopt inert particles (f) as heat storage medium. Gas from a cyclone separator (5) goes through a spray tower (7) and returns into an air heating unit (4) through a circulating fan (10). Part of dried sludge (e) at the lower part of the cyclone separator (5) enters the inert particles multi-room fluidized bed dryer (3) through the back-mixing in a mixer (2). Waste liquid from the bottom of the spray tower (7) enters a waste liquid circulating pool (8), with part of waste liquid circulating into the spray tower (7) and part into a sewage treatment system.