nóng suō ① the process of evaporation of the solvent concentration in the solution increases. Widely used in chemical, food and other industries. ② refers to an object manipulation reduce some content, adding another portion of the content of the course. Such as uranium and so on. ③ refers to things with a certain method of reducing unwanted parts, so that the need to increase the relative amount of parts: uranium | literature requires concentration, focus, summarized, concise. ④ mineral particles with its own gravity sedimentation from the pulp out of the dewatering process. Dehydration in the dense bushy machine. It is a circular pond, the pulp from the center to enter, mineral particles _set_tling at the bottom of the pond, through the rake collected in the central role and discharged from the bottom of the clarified water from the pond around the overflow. Dense concentration of operations to mine about 20% to 30%, the underflow concentration of up to 50% to 70%. Thickener of peripheral drive thickener and center drive thickener. ⑤ gravity concentrated: the use of natural sedimentation gravity separation method, the need for external energy, sludge thickening method is one of the most energy-efficient. Gravity is just a concentrated _set_tlement separation process, which is formed by the precipitation of sludge layer reaches high concentrations concentrated sludge aim is currently the main method of sludge thickening. Gravity alone gravity concentrate is concentrated in a separate pool is completed, the process is simple and effective, but may produce a longer residence time when the odor, but not for all sludge; while the remaining sludge thickening if used in biological phosphorus removal, will be a lot of phosphorus release, the supernatant needs to be processed using chemical phosphorus removal. Gravity concentration method suitable for primary sludge, chemical sludge and biofilm sludge.
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Encyclopedia
Concentrate thickening nongsuo Concentrate (t hickening) pulp preliminary dehydration process, mining Slurry of mineral particles due to gravity or centrifugal force and sedimentation, clarification divided Liquid and concentrated pulp. It is an important method of processing the product of dehydration can be used at Processing a solid concentration of 1% to 25% of various pulp, concentrated product was concentrated Of up to 50% to 70%, close to clarify the overflow. Concentrated into gravity Two types of centrifugal concentration and concentrated to gravity concentrate most widely used. Let concentrated Preparation is also divided into centrifugal gravity concentration equipment and enrichment equipment into two categories; ago Included skill concentrator, efficient concentrator, deep cone thickener and tilt plate Concentrator, the latter including hydrocyclone and sedimentation centrifuges (see centrifugation Enrichment equipment). The most common thickener rake Gravity concentrated mineral particles by gravity _set_tling of the solid and liquid Is separated, the process in order to achieve a concentrated slurry Partition phenomenon of gravity concentration process in the pulp gravity concentration process Mineral particles due to the emergence of the partition _set_tlement phenomenon, namely the formation of thick in the vertical direction Each of the different layers, gradually increasing the concentration of the slurry from top down. Figure 1 When the graduated cylinder _set_tling tests conducted pulp observed Gradual stratification conditions. _Set_tlement began after former pulp stir in a dose Uniform suspension (Figure l, 1). After the _set_tlement began, coarser particles _set_tling Fast, dense precipitate appeared in the bottom region, called compression zone I) (Figure 1, 2); upper supernatant appeared, called the refining zone A. A range in the area and the mouth There are still _set_tling zone B and the transition zone C, the concentration zones B and _set_tlement began Before the same concentration slurry. As the _set_tlement process, D area and A Area increases, while zone B is gradually reduced (Figure 1.3,4) last Kawamata Disappear, C District along with the disappearance (Figure 1,5) B area called vanishing point Pro Critical point. _Set_tlement to proceed, D decreases compressed zone 'in Figure l, 6), But the reduced speed is slow. March April May June than May B 11! An _1. Bin Yuan of Shanghai c-resistant lining Darts points!! Head painting cum glance ', glanced at the small stone four, 123456 Figure 1 make a paste of gravity, shrinking agricultural process A one clarification zone; B _set_tlement area; C a transition zone; D a compression zone Subsidence curves by _set_tling tests to _set_tling time as the abscissa, The height of the refining zone of the vertical axis plotted curve (Figure 2). According to the _set_tlement When the curve, calculate the _set_tling velocity and pulp in a _set_tlement of any _set_tlement area An average concentration of the precipitate product may be obtained. Ideal _set_tlement curve Consists of two straight line segments AB and BD composed intersection B represents the critical point. In Pro Before critical point (t tl), and to clarify the area at the junction of the compression zone, the speed of the pressure slurry clarification _Set_tling velocity reduction zone decision. The slope of that line segment AB pulp in _set_tlement _Set_tling velocity zone. The slope of the line segment BD pulp in the compression zone Shen Lowering speed. Pulp in _set_tling velocity sedimentation area larger than the compression zone was Much. In a continuous precipitation process, the pulp is continuously added to the discharge, There is always the _set_tlement area. Therefore, speed is clarified slurry _set_tling zone Sedimentation rate to be calculated. The actual _set_tlement curve between two straight segments exist In the transition curve segment, the sedimentation rate in this segment began falling quickly, Subsequently tends to slow. The critical point is at the intersection of two deceleration phases. . Counseling eleven thousand one hundred eleven - one hundred eleven - eleven - Door 60 Bu { Has 1 ql
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English Expression
: densification, setting, Enrichement, enriching
n.: concentrate, condensing or being condensed, upgrading, thickening, solidification, inspissation, enrichment, decoction, condensation, concentration
v.: incrassate, inspissate, condenses, condense
vt.: enrich, condensed, compress
French Expression
v. concentrer
Thesaurus
Merger, focus, concentrate, rally, move up and down repeatedly, extract, extract, extract abbreviation, abbreviation, simplify, abbreviate, abbreviate, concrete, simplify, reduce, decompose, contraction, Hamas, abbreviate type, cause