Method of controlling process of sylvinite ore dissolution |
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IPC classes for russian patent Method of controlling process of sylvinite ore dissolution (RU 2352385):
                                          
 Automated method of controlling and managing process for preparing sugar syrup mixture for crystallisation by cooling / 2342438
Proposed automated method of controlling and managing the process of preparing sugar syrup mixture for crystallisation by cooling makes provisions for regulating the volumetric discharge of water entering the mixer and the level of sugar syrup in it. Regulating the level of the sugar syrup in the vertical mould is achieved by acting on the adjustable-frequency electric drive of the sugar syrup pump. Periodically using the lab the density of the ready sugar syrup is controlled at the exit from the mixer. The active electrical power which is used in the electric motor of the sugar syrup pump, the temperature and pressure differential of the sugar syrup mixture, coming from the mixer and water at the entrance of the mixer are all measured. The water-mass density is calculated by its temperature and the density of the sugar syrup mixture by its pressure differential. Afterwards the volume flow rate is worked out by the measured volume flow rate of water, by the estimated value of the density of water and sugar syrup mixture and by the density of ready sugar syrup measured in the laboratory. The dependency ratio of the active electric power from the volume rate of flow of the sugar syrup mixture and the differential in its pressure N=α1Q3 УΔPy+α2QyΔPy , where N - active electric power; QY - volume rate of flow of sugar syrup mixture entering the mixer; ΔPY - pressure differential of the sugar syrup mixture; α1, α2 - coefficients. The obtained plot is used for future calculations of volume rate of flow of sugar syrup mixture only with measured values of active electric power and pressure differential of the sugar syrup mixture. The current task of the regulator of the volumetric water discharge is determined on the basis of measured values of this output, estimated values of the density of sugar syrup mixture, water and volume rate of flow of the sugar syrup mixture, the determined value of density of ready sugar syrup mixture and the task of the regulator calculated in the previous control step. The solid content of the original sugar syrup mixture is controlled - by its temperature and density in the ready sugar syrup mixture. This invention makes it possible to reduce the loss of sugar from molasses due to a more qualitative stabilisation of the density of molasses on its exit from the mixer.
 Work environment remote control device / 2335795
Device contains control unit, temperature sensor, noise sensor and luminance sensor, temperature, noise and luminance signal converter per each sensor, boundary value generator per each controlled factor, comparator per each generator of maximum permissible values of measured temperature, noise, luminance, logic elements per each controlled factor, read-only storage per each controlled factor, shift registers, value counter of each controlled factor, control unit and generator. Besides, device contains relative humidity detector, air speed transducer and pulse number sensor, signal converters of relative humidity, air speed and pulsation factor per each sensor, boundary value generator per each additional controlled factor, comparator per each generator of each additional controlled factor, logic elements per each controlled factor, read-only storage per each controlled factor, shift registers, counter of maximum relative humidity, counter of minimum relative humidity, counter of air speeds, counter of pulsation factors.
 Work environment remote control device / 2335794
Device contains control unit, temperature sensor, noise sensor and luminance sensor, temperature, noise and luminance signal converter per each sensor, boundary value generator per each controlled factor, comparator per each generator of maximum permissible values of measured parameters, logic elements per each controlled factor, read-only storages per each controlled factor, four shift registers, counter of maximum temperature, counter of minimum temperature, noise counter, luminance, control unit and generator. Besides, device contains chemical sensor with converter, chemical concentration generator, logic element of maximum chemical concentrations, read-only storage of maximum chemical concentrations, shift register, counter of maximum chemical concentrations.
 Air humidity detector / 2332701
Invention can be applied for automated systems of microclimate control in closed warehouse space for improving accuracy of heat and humidity calculation in controlled variable air medium. Detector contains temperature sensor, relative humidity and atmospheric pressure detectors, temperature converter to air vapour pressure, and computing unit. Using of converter and atmospheric pressure detector allows for increased accuracy of humidity detection. Invention provides automated real-time humidity and increased accuracy of humidity detection.
 System of automatic temperature profile support in reactor / 2326424
Invention relates to the chemical industry, particularly to the automatic control systems and can be used for temperature support of the reaction mixture in chemical reactors. The system of automatic temperature profile support in the reactor with distributed constants in maleic anhydride production contains two control systems: cascade automatic control system (ACS) of coolant temperature control in the reactor and ACS of benzene-air mixture fed to the reactor where the correction signal is inleted according to reaction mixture temperature. The correction signal represents the sum of the signals about reaction mixture temperature in the measurement points positioned along the reactor height multiplied to the weight factor determined intuitively or from optimization problem solution. Then the correction signal is compared with assignment signal on the functional generator serving as algebraic adder. The invention allows to increase the temperature support accuracy in the reactor at maleic anhydride production.
 System of engine fuel supply / 2325547
System of engine fuel supply consists of fuel tank wherein the following is installed: a level meter connected to the inlet of a "fuel-water" level regulator, and a control valve to flow out commodity water; the said valve is connected to a control outlet of the regulator. The level meter is made as two sensors of the fuel level, located in a portion of the lowest allowable fuel level mainly at opposite sides of the tank and one water level sensor located at the flow out level. The control valve is assembled so as to provide a positive feedback with the regulator upon receiving a signal on water presence and a negative feedback when there is no signal entry. At the moment of a positive feedback and water flow out the regulator is programmed to let out not more than 100 kg of fuel.
 Method of controlling process of thermal destruction of petroleum residues in pipe furnace / 2318858
Method according to invention determines pressure gradients at exit and entrance in each section of the furnace and real gradient is compared to projected gradient, after which, depending on disagreement value, this value is diminished via variation of fuel consumption in corresponding furnace burner. Projected gradient is calculated using formula: ΔPi=k(L1+b)n, wherein ΔPi is pressure gradient in i-th section of coil, %; k, b, n are coefficients depending on conversion value, nature of raw material, and projected quality of final thermal destruction products; and L1 reduced length of coil from its beginning to i-th measurement point, %.
 Separator / 2314876
The invention is pertaining to the devices for purification of the gas flow from the solid and liquid particles and may be used in the different branches of industry and at the enterprises of the agro-industrial complex at operation of the pneumatic actuators, pneumatic installations, and also in need of usage in the production processes of the air and other gases. The separator is supplied with the automatic control system connected to the electrical slide valves connected with the inlet fitting pipe, the purified gas outlet fitting pipe and the fitting pipe for withdrawal of the separated particles. The separator also is supplied with the sensors of the temperature, humidity and pressure disposed on the inlet and outlet fitting pipes, the sensor of the level of the separated particles allocated in the lower part of the storage bin, the sensor of the gas flow speed connected to the gas flow speed controller. The sensors and the rotary valve drive are connected to the automatic control system. The technical result of the invention is automation of purification of the polluted gas flow from the solid and liquid particles at the heightened purification efficiency.
 Method of control over the process of decomposition of the aluminate solution in the alum earth production / 2310607
The invention is pertaining to the field of nonferrous metallurgy and may be used to control the inertia processes, the outlet parameter of which is nonlinearly, predominantly extremely, linked with the inlet parameters. The method to control the process of decomposition of the aluminate solution in production of the alum earth exercised in the battery of the sequentially connected apparatuses- decomposers supplied with the devices of cooling of the source aluminate solution and the decomposing pulp, the devices of separation of the decomposing pulp at the battery outlet into the large-sized production fraction and small-sized fraction in compliance with the dimension of the solid particles in the pulp, with feeding of the source aluminate solution into the head decomposer, and the small-sized fraction and the part pf the large-sized fraction - in the capacity of the streams of the seed - in the decomposers of the head part of the battery provides for measurements of the consumption of the aluminate solution inlet stream, measurement of the consumption of the seed stream, the temperature of the aluminate solution and the pulp, contents of the aluminum oxide and the caustic alkali in the aluminate solution, contents of the particles of the preset class in the commercial hydroxide, stabilization of consumption of the seeds streams, the temperature of the aluminate solution and the decomposing pulp and alterations on each step of the control of the preset stabilizing values. The preset for stabilization at each step of the control values of the consumption of the seed streams and the temperature of the inlet aluminate solution and the decomposing pulp are determined by means of the approximated mathematical model consisting of in series connected the linear dynamic link, which inlets are the measured values of all indicated parameters, and the linear static link determining the predictable value of the speed of fluctuation of the contents of the particles of the preset size in the commercial hydroxide, average and centered the measured values of all parameters, depending on which and on the predictable value of the speed of fluctuation of the contents of the particles of the preset size determine and set the given for stabilization on that step of control the values of the parameters. The invention allows to maintain the quality of the ready product - the contents of the preset fraction of aluminum hydroxide.
 Method for moisture stabilization of dairy butter / 2302108
Continuous action butter machine includes seasoning reservoirs, churning machine with mixer and normalizing component batching pump. At outlet of continuous action butter machine, value of expected butter moisture deviation is determined from a formula. Churning machine mixer rotation frequency is controlled together with feeding of normalizing component depending on deviation of moisture from given value with consideration of value of expected component.
 Method of producing brine for electrolysis / 2347746
Present invention can be used for obtaining aqueous saturated solutions of alkali metal halides, which are used in the production of chlorine and alkali from electrolysis. The method of producing aqueous saturated brine of alkali metal halides involves underground dissolving of salt deposits with simultaneous purification of brine in the brine production well. Purification from toxic impurities - calcium and magnesium compounds is done using spent brine of a halide of the corresponding metal as the solvent, obtained from an electrolysis unit with pH 9-12. The brine from the well is then purified from calcium and magnesium compounds.
Method for processing salt rejects of magnesium production / 2316604
Method comprises steps of grinding salt rejects material; leaching them by means of concentrated solution of potassium chloride; separating mother liquor and solid potassium chloride; washing potassium chloride and drying potassium chloride; before washing procedure, dissolving solid potassium chloride in water at temperature 70 - 90°C; filtering solution and cooling filtrate till temperature 10 - 25°C; filtering received suspension of potassium chloride; washing deposit by means of potassium chloride solution with concentration 300 - 350 g/dm3 and filtering it; returning prepared filtrate for leaching salt rejects material.
Method of separation of potassium chloride / 2315713
Proposed method includes dissolving of sylvinite, clarification of hot saturated lye, crystallization of product in presence of fluoro-reagents, thickening and filtration of suspension and treatment of non-clarified saturated lye. Clarified saturated lye is treated with hot solution saturated with potassium chloride before crystallization of product. Potassium chloride solution is obtained by dissolving off-grade floatation potassium chloride in water. Off-grade floatation potassium chloride is just cyclone dust, fine fractions of floatation product or filtered-off intermediate product used for forming sludge suspension which is clarified and is thickened after clarification and is directed for treatment of non-clarified saturated lye.
Potassium chloride and sodium chloride production process / 2307790
Invention is intended for use in chemical and mining industries to manufacture mineral fertilizers and food salts. Ground sylvinite ore is dissolved in recycled potassium chloride-saturated lye. Resulting solution is directed at a rate of 0.03-0.15 m/s to leaching in the first dissolution column, with its electrodes connected to one of a current source poles, and treated by low-frequency (1-5 Hz) alternating electric field at voltage 30-100 v. Solution thus enriched with potassium chloride is fed together with solid phase into the downstream second dissolution column with its electrodes connected to opposite pole of the current source. Treatment by alternating electric field in the second column is effected under the same conditions as in the first column. Two-step leaching results in potassium chloride solution and sodium chloride-enriched solid phase. Separated sodium chloride is sent to production of food salt. Potassium chloride is separated from solution via crystallization.
 A method of obtaining a crystal of potassium chloride from the cyclone dust potash ore flotation concentrate / 2232130
The invention relates to the processing of sylvinite ores in potash and is intended for the production of white potassium chloride from the cyclone dust flotation concentrate
 The method of obtaining dust-free potassium fertilizers / 2215717
The invention relates to techniques for the production of potassium chloride from sylvinite ores with low content of dust fractions
 The method of obtaining potassium fertilizers / 2196759
The invention relates to the field of production of potash fertilizers from sylvinite ores by flotation method
The method of obtaining salt / 2167286
 The method of obtaining potassium chloride / 2154025
The invention relates to techniques for processing fine potassium chloride, resulting in the production of potash fertilizers from sylvinite ores
 Gravity mixer / 2348449
Gravity mixer consists of a cylinder-shaped taper-bottomed body with feed and discharge nipples. On centre inside the body there is a vertical pipe conduit mounted with tangentially hydraulic nozzles arranged at a specified spacing along it. Between the pipe conduit and the body wall there is a onefold discontinuous tape helix rigidly fixed. Under the last but one coil of the tape helix there is a slanted sieve bottom with a rubber compensator element positioned. Under the sieve bottom there is hammer installed to provide for periodical application of impact onto the sieve bottom rubber compensator element. Additionally the gravity mixer is equipped with a bucket conveyor for metal balls upward transportation. A slanted conduit connects the bucket conveyor bottom part to that of the gravity mixer (immediately at the lower edge of the slanted sieve bottom) and the bucket conveyor top part - to the gravity mixer lid.
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FIELD: chemistry. SUBSTANCE: invention relates to technique of controlling processes of sylvinite ores dissolution and can be used in production of potassium chloride by dissolution-crystallisation method. Method of controlling processes of sylvinite ores dissolution includes regulation of ore supply depending on content of useful component in input flows, measuring ready solution temperature and determining sodium chloride content in solution by calculation method. Additionally determined are density, temperature and consumption of dissolving solution, content of sodium chloride in it is determined by content of useful component, density and temperature. Ore supply is calculated according to suggested equation and calculated value is given as task to system of weigher control. EFFECT: invention allows to simplify controlling process of sylvinite ores dissolution. 2 cl, 8 tbl, 3 ex
The invention relates to a technique of managing the processes of dissolution of sylvinite ore containing potassium salts, and can be used in the production of potassium chloride by the method of dissolution-crystallization. The known method for automatic process control leaching of potassium chloride of potash, by changing the flow rate input streams - see A.S. USSR №1060569, CL C01D 3/08; G05D 27/00. Publ. 15.12.83, bull. No. 46. In the proposed method the total flow of water to the composition of the input streams, regulate, depending on the consumption of liquor with correction for water consumption for washing machine, consumption, recycling salt solution, the density of the salt solution and the circulating liquor, the total consumption of potassium chloride in the composition of the input streams, the concentration of potassium chloride in a saturated liquor and the temperature of the liquor will impact on the flow of liquor into the machine. The method has a high complexity, since its implementation is impossible without the implementation of a complete chemical analysis of the input streams to determine the water content of the system. Analytical control is a lengthy process, as it involves sampling, preparation for analysis and determination of components in the system KCl-NaCl-H2O in the presence of MgCl2and other impurities. The results of the analysis comes to the production of chlorine is East of potassium delayed for 3-4 hours, and in terms of large-scale production (for example, BY Uralkali flows reach 1500 m3/h) they have a significant impact on the progress of the process does not have. Therefore, the full chemical analysis used statistical material. Wide application of analytical control does not allow for operational control of the technological process, and in terms of the low content of chlorides of magnesium and calcium in the sylvinite ore is accumulated in the circulating liquor is practically not observed and the conclusion of the process of cold saturated liquor is not required. A known method of controlling the process of dissolution of the salt ore such as potash, by stabilizing the flow of the original solution and controlling the feed of ore depending on the content of useful component in the input flow and temperature measurement of a ready solution - prototype - see A.S. USSR №1256776, CL B01F 1/00; G05D 27/00. Publ. 15.09.86. Bull. No. 34. The proposed method additionally measure the mineral content in the finished solution, and depending on the temperature of the prepared solution and the contents of the received component, it determines the content of sodium chloride in the finished solution. The content of useful component in source and finished solutions and the calculated value of the content of sodium chloride on Radelet the ratio of the water content in the initial and final solutions and regulate the flow of ore in addiction, cited in A.S. The method is complex because the definition of the content of sodium chloride in the finished solution is determined by the method of calculation depending on the temperature and content in the solution of potassium chloride. The calculation assumes that the degree of saturation of the prepared solution of sodium chloride equal to 1. However, operating experience potash production shows that in the finished solution is always an excessive amount of solid sodium chloride, the presence of which in solution is determined by the removal of particles of halite ore in the clarification process, the evaporation of water from the surface of the thickeners at a temperature of clarification and crystallization of sodium chloride by cooling and evaporation of the solution. Therefore, the proposed method requires the use of methods of analytical control to determine the NaCl in the finished solution. In addition, stabilization of the flow of the original solution is complex, as is the need to install a buffer tank of large volume (up to 1500 m3for smooth flows changes in working solution by unloading clay-saline sludge and concentrate, leaching equipment, etc. The task of the invention is its simplified through the use of modern low-inertia automatic controls and automatic control process is ω dissolution of sylvinite ores. The problem is solved in that in contrast to the known method further measure the density, temperature and flow rate of the solvent of a solution, determine the content of sodium chloride in mineral content, density and temperature and regulate the flow of ore dependencies:
where Qore- ore consumption, t/h; QR.R-Rthe flow of solvent solution, t/h; Tgtr-Rthe temperature of this solution, °C; WithKClR. R-R- mass fraction of KCl in solvent solution; ρR.R.-p- the density of the solvent solution, t/m3; TR. R-R- the temperature of the solvent solution, °C; Ini- constant coefficients, i=0, 1, 2, 3, 4, 5, 13, 34, Andi- empirical coefficients, i=0, 1, 2, 3. CNaCl R. R-R- mass fraction of NaCl in solvent solution for a range of temperatures 60-75°C. When the flow solvent solution between the main solvents and apparatus for heat recovery, for example, when discharge of the mixer, in which heat recovery is carried out halite blade cold solvent solution, the second solvent consumption, solvent of the solution is determined by the relationship:
where FR.R.-P1and FR.R.-the 2 threads solvent liquor between devices, m3/h; ρR. R-P2the density of cold solvent solution, t/m3. The method consists in the following. In contrast to the known method, the proposed method of managing the process of dissolution of sylvinite ore is that the amount of potassium chloride introduced into the cycle with the ore, is equivalent capacity for potassium chloride solvent solution at a temperature of dissolution with variations in the flow rate and composition. The flow of ore extinguish all the perturbations that occur in the technological cycle of production of potassium chloride, which affect the flow rate and solvent composition of the solution. The proposed method to measure the density, temperature and flow rate of the solvent of a solution, determine the content of potassium chloride and content of useful component is potassium chloride, density and temperature determine its content of sodium chloride. In the ore also determine the content of potassium chloride. The supply of ore to the dissolution adjust for dependencies:
where Qore- ore consumption, t/h; WithKCl ore- mass fraction of KCl in the ore; Tgtr-Rthe temperature of this solution, °C; CKCl R. R-R- mass fraction of KCl in solvent solution; <> ρR.R-R- the density of the solvent solution, t/m3;TR.R-R- the temperature of the solvent solution, °C; QR.R-Rthe flow of solvent solution, t/h; Ini- constant coefficients, i=0, 1, 2, 3, 4, 5, 13, 34. The calculated mass fraction of NaCl in the solvent solution for the temperature interval from 60 to 75°C is determined by dependencies
where Qore- managed the flow of ore, t/h; QR.R-Rthe flow of solvent solution, t/h; CKCl ore- mass fraction of KCl in the ore; Tgtr-Rthe temperature of this solution, °C; CKCl R. R-R- mass fraction of KCl in solvent solution, %; ρR R-R- the density of the solvent solution, t/m3; TR. R-R- the temperature of the solvent solution, °C; Andi- empirical coefficients, i=0, 1, 2, 3. The dependences show that all the parameters of the equation of flow can be quickly determined with the help of modern sensors, low inertia, and the result processed in the controller, where the signal is sent to control the dosing flow rate of sylvinite ore. This control system is almost instantaneous. When developing a mathematical model of the stages of dissolution of sylvinite ore was shown that one of nazimah factors which must be considered in the management process, is the mass fraction of NaCl in the solvent solution. Direct measurement of mass fraction of NaCl using the instrumentation is not possible. Therefore, the implemented calculation method for the determination of NaCl on the basis of the automatically measured parameters: the mass fraction of KCl, density and temperature of the solvent liquor application developed in VNIIG "Method of coefficient - see Method of calculation of the density of the complex salt systems. Proceedings of VNIIG, vol.No. 36, Goskomizdat, 1959. This method allows to determine the empirical coefficients Andi. Applying a known method three-factor experiment (see, for example, Planning of experiment in chemistry and chemical technology". The Sautin S.N. Ed. "Chemistry", L., 1975) when processing the resulting technological calculations of data received basic equation relating the density of the solvent liquor with its composition and temperature:
Transforming this equation, we obtain the dependence of the mass fraction of NaCl in solvent solution WithNaCl R. R.-R. This equation is valid for an interval of 60-75°C and in the range is the temperature of the solvent solution after heat recovery. However, the temperature interval if necessary, the can is to be expanded. Through the use of automatic analyzers for determining the content of KCl in the ore and solutions, as well as the use of the calculation method of determining the content of NaCl in solutions based on indirect parameters: density and temperature, these parameters are determined by the automatic control means with sufficient accuracy. Kinetic regularities of the process of dissolution of sylvinite ore taking into account factors such as the residence time of the solid phase in the solvent, the rate of leaching of KCl ore, etc. incorporated in the project setup dissolution and taken into account when selecting equipment. Therefore, to control the stage of dissolution of the proposed method using a static model. Development of mathematical model is made using the method of mathematical planning of the full factorial experiment based on actual statistical data of existing facilities involving mathematical description of the process in the diagram, the solubility of the water-salt system KCl-NaCl-H2O in the presence of MgCl2. To determine the coefficients Iniin the above equation, calculate material balances process of dissolution of sylvinite ores based on, for example, from a condition of receipt of the final solution with a degree of saturation on KCl equal to 0.98, the temperature drop of the prepared solution from optimalnoe, equal to 2°C, the degree of leaching of KCl ore - not less than 0.95. As independent variables are: - mass fraction of KCl in the ore; the temperature of this solution (the temperature of the drain of the first solvent); the flow of solvent solution; - mass fraction of KCl in solvent solution; - mass fraction of NaCl in the solvent solution. The total number of material balance calculations in the planning matrix was 25or 32. Material balances that determine the flow of ore, were calculated according to standard techniques (see, for example, "Technology of potash fertilizers". Kashkarov OD, Sokolov, I., Ed. "Chemistry", D., 1978) and is not contained in the description because of grimscote and widely known methods of calculation. Material balances flow of ore to the dissolution taking into account the zero error of the instrument, with which they control the value of process parameters, made in the traditional way using charts solubility of salts in the system KCl-NaCl-H2O in the presence of MgCl2. Next, perform a calculation taking into account the lower and upper levels of the maximum permissible error of the instrument, make the assessment of the technological reproducibility of the calculations, the calculation of the regression coefficients, assess their significance and adequacy of the regression equations. Table 1 shows the levels facto is impressive and ranges of their variation for dissolution of sylvinite ore, for example, for the conditions of the ore processing at the Verkhnekamskoye field.
Table 2 shows the results of determination of the coefficients Initaking into account the exceptions to the equation insignificant coefficients.
After substitution of the above factors the addiction to control the flow of ore to the process of dissolution of sylvinite ores will be:
When the flow solvent solution between the main solvent and apparatus for heat recovery, for example, when discharge of the mixer, in which heat recovery is carried out halite blade cold solvent solution, the second solvent consumption, solvent of the solution is determined by the relationship:
where Fp.p-p1,2threads solvent solution between devices, m3/h; ρp.p-p2- flux solvent solution into the mixer for heat recovery, t/m3. Table 3 shows the levels of the factors and their intervals argirova the Oia to determine the empirical coefficients And i.
After substitution of the coefficients Andiin equation (2) with the variables expressed in coded form, the dependence for the calculation of the mass fraction of NaCl in the solution will have the form:
When changing the process parameters, the mass fraction of KCl in the ore and solvent solution, temperature, mass fraction of NaCl in the solvent solution over intervals of varying the numerical values of the coefficients Iniit should be correct. In tables 5 and 6 show additional new intervals varying factors of technological parameters (table 5), the values of the coefficients Ini(table 6), the intervals of variation and experimental values of the coefficients Andiare shown in tables 7 and 8.
Table 6 shows the results of determination of the coefficients Initaking into account the exceptions to the equation insignificant coefficients.
After substitution of the above factors the addiction to control races who Odom ore dissolution process of sylvinite ores will be:
Table 7 shows the levels of the factors and ranges of their variation to determine the empirical coefficients Andi.
After substitution of the coefficients Andiin equation (2) with the variables expressed in coded form, the dependence for the calculation of the mass fraction of NaCl in the solution will have the form:
These parameters cover almost the whole area of work gallerycheck enterprises for the processing of sylvinite ores. Thus, the task of simplifying the management process of dissolution of sylvinite ores by replacing long analytical control automatic analyzer potassium and low-inertia automatic sensors of process parameters - temperature, flow, and density using the results of measurement for automatic control of the flow of ore from the application of PC in the supervisor mode. The method is as follows. Solvent solution after heat recovery at the UWC with a temperature of 60-75°C is directed to the dissolution, the solution determines the temperature of thermocouple with the University of fitiavana output signal - for example, TSMU-055; density - for example, using a primary Converter MFS2000 and signal Converter MFS081 consumption and the solvent of the solution - for example, by the induction flow meter type SORA HEH. Mass fraction of potassium in the ore and solvent solution is determined by measuring potassium, for example, the company "Bertold" LB 377-62. The temperature of this solution is also determined with the aid of thermocouple. The received signals are sent to the controller and the PC, where the signal goes to automatic tape dispenser, which belt speed controls the flow of ore in the automatic mode the dependencies (1) and (2). Examples of the method Example 1 1. The readings for determining the mass fraction of NaCl have the values: 0,115 - mass fraction of KCl in solvent solution; 1,205 - density solvent solution, g/cm3; 68,3 - temperature solvent solution, °C. The calculation of the mass fraction of NaCl in the solvent solution:
Mass fraction of NaCl used in the calculation of consumption of ore. 2. The performance of devices for determining the flow of ore have values: 0,239 - mass fraction of KCl in the ore; 92,2 - temperature ready solution, °C; 853,20 - flow solvent solution, m3/PM Calculation of ore consumption:
The calculated value of the flow of ore served as the task management system weighing feeder, and sylvinite ore is fed into the solvent. A survey of automatic devices produced with an interval of 10 seconds. Example 2 The performance of devices for determining the flow rate of the solvent of the solution have the values: 771,30 - flow solvent solution in basic solvents, m3/h; 80,04 - flow solvent solution in the apparatus for heat recovery halite blade, m3/h; 1,205 - density solvent solution in the main solvent, g/cm3; 1,233 - density solvent solution in the apparatus for heat recovery halite blade, g/cm3.
Example 3 3. The readings for determining the mass fraction of NaCl have the values: 0,120 - mass fraction of KCl in solvent solution; 1,205 - density solvent solution, g/cm3; 67,7 - temperature solvent solution, °C. The calculation of the mass fraction of NaCl in the solvent solution:
Mass fraction of NaCl used in the calculation of consumption of ore. 4. Instrument readings to determine flow of ore have values: 0,308 - mass fraction of KCl in p is de; of 97.8 - temperature ready solution, °C; 1118 - flow solvent solution, m3/PM The calculation flow of ore:
1. The process control method of dissolution of sylvinite ores, including the regulation of feeding ore depending on the content of useful component in the input streams, the temperature measurement of the prepared solution and the determination of the content of sodium chloride in the solution design method, characterized in that it further measure the density, temperature and flow rate of the solvent of a solution, determine the content of sodium chloride in mineral content, density and temperature, calculate the ore feed to the following dependence and the calculated value serves as the task management system weight batcher: 2. The method according to claim 1, characterized in that when the division of the flow of solvent solution between the main solvents and apparatus for heat recovery amount is governed by the dependence:
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