Flow mixing method for bauxite forward flotation
Technical Field The invention relates to a flotation bauxite mixed flow method. Background Art Bauxite ore dressing is generally made of alumina content/silicon dioxide content ratio in the 2.5-3.5 drog alumyte between as raw materials for production, the use of "a rough, a refined, as soon as sweeps " flotation process the raw pulp roughing cell to flotation operation, coarse foam into operation; to, rougher flotation of wake enter and sweep and defines ;; foam as flotation concentrate enters the settling tank, operation roughing cell selected wake the; scavenging foam enter roughing cell operation, scavenging wake as a flotation tailings into the tailings settling tank, but in actual production, the following problems found to exist: 1, the flotation concentrate/alumina content ratio of the silicon dioxide content is requested for 5.5, but after operation by the flotation process, after the flotation operation roughing cell laboratory coarse foam alumina content/silicon dioxide content ratio reaches or even exceeds 6.0, has fully satisfied the requirements of the product index, then enter the; to flotation operation is no longer necessary; 2, scavenging overflow and coarse wake in the production flow is the flotation process, lead to large circulating flotation operation, the cycle time is relatively long, a serious impact on the productivity of the whole production line; 3, tail minerals indicators is poor, the yield is low, tailings alumina content is as high as 44% or more, the ratio of the alumina content/silicon dioxide content in 1.42-1.45 between, maintaining the yield 55-60% between, and tailings alumina content is 42%, yield 70% far distance from the target; 4, after the selected operation selected wake laboratory indicators often appear in the production process of the alumina content is less than 42%, scavenging wake alumina content index reached, however, there are problems due to the flotation process, selected wake can only participate in the flotation operation cycle can not be directly used as a flotation tail minerals discharge flow, caused by increased consumption of the collector, the-ore 1500g-1800g/t. The above exists a serious impact on the problem of improving the productivity of the production line of the ore, the ore dressing the production cost is increased, therefore the development of new flotation process flow of the problem to be solved urgently. Content of the invention In view of the above circumstances, in order to overcome the defects of the prior art, the purpose of this invention is to provide a flotation bauxite mixed flow method, can effectively solve the large circulating flotation operation, for a long time, tail minerals index, low yield, the problem of large consumption of the collector. The invention solves the technical scheme is, the 200 mesh sieve, screen input to the raw ore slurry circulating flotation machine in three stepped micro soaks from to flotation, in other words raw ore slurry is entering the raw pulp, PH value to the regulator the original pulp PH value of 8.8-9.0, stir; then adding inhibitor and the collector, uniform stirring, mixing of by the original pulp slurry into the groove, the rougher roughing cell wake and coarse tail collector are mixed and then enter the sweeping form, of roughing cell rough and coarse bottom of the collector is returned to the transmission after mixing cycle; sweeping the sweep and defines the wake into the tailings settling tank, shall be of flotation tailings, scavenging flow and scavenging the bottom of the collector is returned to the sweep after mixing cycle, sweeping the sweep and defines the overflow into the selected groove, ; out the overflow and the overflow of rough roughing cell after mixing of the concentrate ore settling tank, the flotation concentrate obtained, ; out of the wake of the sweeping or defines the form of the wake are mixed and then enter the tailings preconcentration settling tank, ; out under flow and the concentration of the mixture of fine bottom of the collector to return to the selected groove circulation; the PH value regulator is sodium carbonate; said inhibitor is sodium hexametaphosphate, adding amount is 5g-100g/t the original pulp; the selected collector, thick tail collector, coarse bottom collector, collector fine bottom sweeping bottom collector and method for the preparation of the same, by the weight ratio is 5:2:1:1:1 of pure alkali, hydroximic acid, oleic acid, fatty alcohol polyoxyethylene ether carboxylate sodium and sodium hexametaphosphate mixed together to form the collector, the collector, thick tail collector, coarse bottom collector, collector fine bottom bottom collector and sweeping the total adding amount is 800g-1300g/t the original pulp ;; out of the wake in the concentration of the alumina content is less than 42% when, after mixing with the sweep and select the wake flow into the tailings settling tank, when the selected wake flow alumina content is greater than or equal to 42%, , selected wake directly enter into the scavenging groove. The three step micro soaks from circulating flotation machine resources for Zhengzhou wisdom of Company limited to the production of new technology of commercial products. The procedure of this invention reasonable configuration, effectively improves the capacity of the collector capture bauxite ore concentrate; stable production process, material transferring smoothly; tails decline in alumina content of 1.0-2.5%, alumina content/silicon dioxide content in the ratio of 0.1-0.2, enhance the productivity of the 12%-15%, the yield of 10%-12%. Description of drawings Figure 1 is the process flow diagram of the invention. Mode of execution The following actual situation with a specific embodiment of this invention a detailed description. Embodiment 1 The 200 mesh sieve, screen input to the raw ore slurry circulating flotation machine in three stepped micro soaks from to flotation, in other words raw ore slurry is entering the raw pulp, add sodium carbonate adjusting the original pulp PH value is 8.8, stir; then adding sodium hexametaphosphate and the collector, to each ton of raw pulp 5g sodium hexametaphosphate and 500g selected collector, stir; out by the original pulp is mixed slurry into roughing, the roughing roughing cell wake and coarse tail collector are mixed and then enter the sweeping form, added for each ton of raw pulp 100g thick tail collector, the roughing cell rough and coarse bottom of the collector is returned to the transmission after mixing cycle, to each ton of raw pulp 200g coarse bottom collector; sweeping the sweep and defines the wake into the tailings settling tank, shall be of flotation tailings, scavenging flow and scavenging the bottom of the collector is returned to the sweep after mixing cycle, to each ton of raw pulp 200g sweeping bottom collector; sweeping the sweep and defines the overflow into the selected groove, ; out the overflow and the overflow of rough roughing cell after mixing of the concentrate ore settling tank, the flotation concentrate obtained, ; out of the wake of the sweeping or defines the form of the wake are mixed and then enter the tailings preconcentration settling tank, ; out under flow and the concentration of the mixture of fine bottom of the collector to return to the selected groove circulation, to each ton of raw pulp 100g fine bottom collector. Embodiment 2 The 200 mesh sieve, screen input to the raw ore slurry circulating flotation machine in three stepped micro soaks from to flotation, in other words raw ore slurry is entering the raw pulp, add sodium carbonate adjusting the original pulp PH value is 8.9, stir; then adding sodium hexametaphosphate and the collector, to each ton of raw pulp 47g sodium hexametaphosphate and 300g collecting agent selected, uniform stirring, mixing of by the original pulp slurry into the groove, the rougher roughing cell wake and coarse tail collector are mixed and then enter the sweeping form, added for each ton of raw pulp 200g thick tail collector, the roughing cell rough and coarse bottom of the collector is returned to the transmission after mixing cycle, to each ton of raw pulp 100g coarse bottom collector; sweeping the sweep and defines the wake into the tailings settling tank, shall be of flotation tailings, scavenging flow and scavenging the bottom of the collector is returned to the sweep after mixing cycle, to each ton of raw pulp 100g sweeping bottom collector; sweeping the sweep and defines the overflow into the selected groove, ; out the overflow and the overflow of rough roughing cell after mixing of the concentrate ore settling tank, the flotation concentrate obtained, ; out of the wake of the sweeping or defines the form of the wake are mixed and then enter the tailings preconcentration settling tank, ; out under flow and the concentration of the mixture of fine bottom of the collector to return to the selected groove circulation, to each ton of raw pulp 100g fine bottom collector. Embodiment 3 The 200 mesh sieve, screen input to the raw ore slurry circulating flotation machine in three stepped micro soaks from to flotation, in other words raw ore slurry is entering the raw pulp, add sodium carbonate adjusting the original pulp PH value is 9.0, stir; then adding sodium hexametaphosphate and the collector, to each ton of raw pulp 100g sodium hexametaphosphate and 100g collecting agent selected, uniform stirring, mixing of by the original pulp slurry into the groove, the rougher roughing cell wake and coarse tail collector are mixed and then enter the sweeping form, added for each ton of raw pulp 300g thick tail collector, the roughing cell rough and coarse bottom of the collector is returned to the transmission after mixing cycle, to each ton of raw pulp 200g coarse bottom collector; sweeping the sweep and defines the wake into the tailings settling tank, shall be of flotation tailings, scavenging flow and scavenging the bottom of the collector is returned to the sweep after mixing cycle, to each ton of raw pulp 300g sweeping bottom collector; sweeping the sweep and defines the overflow into the selected groove, ; out the overflow and the overflow of rough roughing cell after mixing of the concentrate ore settling tank, the flotation concentrate obtained, ; out of the wake of the sweeping or defines the form of the wake are mixed and then enter the tailings preconcentration settling tank, ; out under flow and the concentration of the mixture of fine bottom of the collector to return to the selected groove circulation, to each ton of raw pulp 300g fine bottom collector. The present invention is directed to the above-mentioned prior art, the design of a new bauxite positive flotation method, the method is in the prior art on the basis of the improvement of the innovative, and the method is simple, easy to operate, flow reasonable configuration, and by the actual production and application, has made remarkable effect, effectively improve the ability to capture the concentrate ore of bauxite the collector, collector consumption is only 800g-1300g/t the original pulp, the use of the method of the invention the collecting agent consumption than the use of prior art collector consumption consumed by each ton of the raw pulp 200-1000g collector, stable production process, material transferring smoothly; tails decline in alumina content of 1.0-2.5%, alumina content/silicon dioxide content in the ratio of 0.1-0.2, enhance the productivity of the 12%-15%, the yield of 10%-12%, with a great economic and social benefit. The invention relates to a flow mixing method for bauxite forward flotation and effectively solves the problems that flotation circulation quantity is high, duration is long, indexes are poor, yield is low and collecting agent quantity is high. The method includes: after ore pulp enters an ore pulp tank, adding PH regulator, and performing mixing; adding inhibitor and selected collecting agent, performing mixing, allowing mixed pulp into a roughing tank, mixing roughing wake and the collecting agent, allowing mixture to enter a scavenging tank, mixing roughing underflow and the collecting agent, allowing mixture to enter the roughing tank, allowing the scavenging wake to flow from the scavenging tank into a tailings settling tank, mixing scavenging underflow and the collecting agent, allowing mixture to enter the scavenging tank, allowing scavenging overflow to flow from the scavenging tank into a concentrating tank, mixing concentrating overflow and roughing overflow, allowing mixture to enter a concentrate settling tank, allowing concentrating wake to enter the scavenging tank or mixture of the concentrating wake and the scavenging wake to enter the tailings settling tank, mixing the concentrating underflow and the collecting agent, and allowing the mixture to enter the concentrating tank. The method has the advantages that the flow process configuration is reasonable, the ability of the collecting agent to collect bauxite concentrate is effectively improved, the production process is stable, and transferring of materials is smooth. 1. A bauxite positive flotation mixed flow method, characterized in that the 200 mesh sieve, screen input to the raw ore slurry circulating flotation machine in three stepped micro soaks from to flotation, in other words raw ore slurry is entering the raw pulp, PH value to the regulator the original pulp PH value of 8.8-9.0, stir; then adding inhibitor and the collector, uniform stirring, mixing of by the original pulp slurry into the groove, the rougher roughing cell wake and coarse tail collector are mixed and then enter the sweeping form, of roughing cell rough and coarse bottom of the collector is returned to the transmission after mixing cycle; sweeping the sweep and defines the wake into the tailings settling tank, shall be of flotation tailings, scavenging flow and scavenging the bottom of the collector is returned to the sweep after mixing cycle, sweeping the sweep and defines the overflow into the selected groove, ; out the overflow and the overflow of rough roughing cell after mixing of the concentrate ore settling tank, the flotation concentrate obtained, ; out of the wake of the sweeping or defines the form of the wake are mixed and then enter the tailings preconcentration settling tank, ; out under flow and the concentration of the mixture of fine bottom of the collector to return to the selected groove circulation; the PH value regulator is sodium carbonate; said inhibitor is sodium hexametaphosphate, adding amount is 5g-100g/t the original pulp; the selected collector, thick tail collector, coarse bottom collector, collector fine bottom sweeping bottom collector and method for the preparation of the same, by the weight ratio is 5:2:1:1:1 of pure alkali, hydroximic acid, oleic acid, fatty alcohol polyoxyethylene ether carboxylate sodium and sodium hexametaphosphate mixed together to form the collector, the collector, thick tail collector, coarse bottom collector, collector fine bottom bottom collector and sweeping the total adding amount is 800g-1300g/t the original pulp ;; out of the wake in the concentration of the alumina content is less than 42% when, after mixing with the sweep and select the wake flow into the tailings settling tank, when the selected wake flow alumina content is greater than or equal to 42%, , selected wake directly enter into the scavenging groove. 2. Bauxite positive flotation mixed flow method according to Claim 1, characterized in that the 200 mesh sieve, screen input to the raw ore slurry circulating flotation machine in three stepped micro soaks from to flotation, in other words raw ore slurry is entering the raw pulp, add sodium carbonate adjusting the original pulp PH value is 8.8, stir; then adding sodium hexametaphosphate and the collector, to each ton of raw pulp 5g sodium hexametaphosphate and 500g selected collector, stir; out by the original pulp is mixed slurry into roughing, the roughing roughing cell wake and coarse tail collector are mixed and then enter the sweeping form, added for each ton of raw pulp 100g thick tail collector, the roughing cell rough and coarse bottom of the collector is returned to the transmission after mixing cycle, to each ton of raw pulp 200g coarse bottom collector; sweeping the sweep and defines the wake into the tailings settling tank, shall be of flotation tailings, scavenging flow and scavenging the bottom of the collector is returned to the sweep after mixing cycle, to each ton of raw pulp 200g sweeping bottom collector; sweeping the sweep and defines the overflow into the selected groove, ; out the overflow and the overflow of rough roughing cell after mixing of the concentrate ore settling tank, the flotation concentrate obtained, ; out of the wake of the sweeping or defines the form of the wake are mixed and then enter the tailings preconcentration settling tank, ; out under flow and the concentration of the mixture of fine bottom of the collector to return to the selected groove circulation, to each ton of raw pulp 100g fine bottom collector. 3. Bauxite positive flotation mixed flow method according to Claim 1, characterized in that the 200 mesh sieve, screen input to the raw ore slurry circulating flotation machine in three stepped micro soaks from to flotation, in other words raw ore slurry is entering the raw pulp, add sodium carbonate adjusting the original pulp PH value is 8.9, stir; then adding sodium hexametaphosphate and the collector, to each ton of raw pulp 47g sodium hexametaphosphate and 300g collecting agent selected, uniform stirring, mixing of by the original pulp slurry into the groove, the rougher roughing cell wake and coarse tail collector are mixed and then enter the sweeping form, added for each ton of raw pulp 200g thick tail collector, the roughing cell rough and coarse bottom of the collector is returned to the transmission after mixing cycle, to each ton of raw pulp 100g coarse bottom collector; sweeping the sweep and defines the wake into the tailings settling tank, shall be of flotation tailings, scavenging flow and scavenging the bottom of the collector is returned to the sweep after mixing cycle, to each ton of raw pulp 100g sweeping bottom collector; sweeping the sweep and defines the overflow into the selected groove, ; out the overflow and the overflow of rough roughing cell after mixing of the concentrate ore settling tank, the flotation concentrate obtained, ; out of the wake of the sweeping or defines the form of the wake are mixed and then enter the tailings preconcentration settling tank, ; out under flow and the concentration of the mixture of fine bottom of the collector to return to the selected groove circulation, to each ton of raw pulp 100g fine bottom collector. 4. Bauxite positive flotation mixed flow method according to Claim 1, characterized in that the 200 mesh sieve, screen input to the raw ore slurry circulating flotation machine in three stepped micro soaks from to flotation, in other words raw ore slurry is entering the raw pulp, add sodium carbonate adjusting the original pulp PH value is 9.0, stir; then adding sodium hexametaphosphate and the collector, to each ton of raw pulp 100g sodium hexametaphosphate and 100g collecting agent selected, uniform stirring, mixing of by the original pulp slurry into the groove, the rougher roughing cell wake and coarse tail collector are mixed and then enter the sweeping form, added for each ton of raw pulp 300g thick tail collector, the roughing cell rough and coarse bottom of the collector is returned to the transmission after mixing cycle, to each ton of raw pulp 200g coarse bottom collector; sweeping the sweep and defines the wake into the tailings settling tank, shall be of flotation tailings, scavenging flow and scavenging the bottom of the collector is returned to the sweep after mixing cycle, to each ton of raw pulp 300g sweeping bottom collector; sweeping the sweep and defines the overflow into the selected groove, ; out the overflow and the overflow of rough roughing cell after mixing of the concentrate ore settling tank, the flotation concentrate obtained, ; out of the wake of the sweeping or defines the form of the wake are mixed and then enter the tailings preconcentration settling tank, ; out under flow and the concentration of the mixture of fine bottom of the collector to return to the selected groove circulation, to each ton of raw pulp 300g fine bottom collector.