CN2328008Y - Static fluid suspension concentration online tester - Google Patents

Abstract

The utility model relates to a static type on-line detecting meter for the concentration of suspended fluid. The utility model is composed of an outer box body, an inner box body, a cover plate, a bracket tightly fixed to the cover plate, a concentration transducer fixed to the bracket, a liquid lever transducer fixed to the bracket, a concentration sensor which is connected to the concentration transducer through a supporting rod in a suspending mode, a liquid lever sensor (float) which is connected to the liquid level transducer through another supporting rod in a suspending mode, a concentration sensor cage, a liquid inlet pipe which is fixedly connected to one side wall of the inner box body and the outer box body, a liquid outlet pipe which is fixedly connected to the other side wall of the outer box body and a controller. The accuracy of the concentration detection of the utility model can reach 0.5% to 1%. The utility model has the advantages of simple structure, reliable work and low cost, and can be used for the on-line detection for the concentration of fluid of industries, such as ore dressing industries, chemical industries, etc.

Description

The online detection meter of static(al) formula suspension concentration

The utility model relates to a kind of suspension concentration on-line measuring device.

In commercial production, particularly in coloured, ferrous metal ore dressing and coal separation were produced, pulp density and degree of stability thereof were to the influence of mineral processing indexs such as concentrate quality, metal recovery rate greatly.Therefore, detecting pulp density, and in time adjust, is an importance of production run control.At present, generally the method for Cai Yonging is artificial timing sampling, measure with the concentration kettle, but poor accuracy.Also successively released the online detection meters of various concentration such as differential pressure type, radioactive ray formula, ultrasonic type on the market, its accuracy in detection can reach ± and 1～2%.Their common feature is, tested suspension (ore pulp) is introduced one section U-shaped pipeline, utilization is installed in pressure, radioactive ray, ultrasonic wave generating source and the receiving sensor on the U-shaped duct wall, behind pressure differential, radioactive ray or the hyperacoustic attenuation change switching electrical signals that the suspension concentration change is caused, the input controller is realized the timely demonstration of convection cell concentration and is adjusted control.The common issue with that their exist is, the U-shaped pipeline is complicated at the installation and the operational administrative of production scene, and particularly in the ore dressing plant, the U-shaped pipeline easily stops up, thereby influence is produced.Therefore, their application have aborning been limited.

The purpose of this utility model is in order to overcome the defective of the online detection meter of above-mentioned various concentration, to provide a kind of simple in structure, reliable operation, accuracy of detection height, and installation, operation and convenient management, the cheap online detection meter of static(al) formula suspension concentration.

The utility model realizes that the technical scheme of above-mentioned purpose is: by outer case, be total to the end with outer case, and its top plan is lower than the internal box of outer case top plan, be fixed on the cover plate at outer case top by screw, be anchored on the support on the cover plate, be fixedly connected on concentration converter and liquid level converter on the support, be connected concentration sensor on the concentration converter by the pole suspension type, be connected level sensor (float) on the liquid level converter by another pole suspension type, concentration sensor is covered on its inside, the teeter amplitude of limiting concentration sensor, and tighten up on the cover board sensor cage, pass that the outer case sidewall is fixed in the feed tube on the internal box sidewall and the discharging tube that is fixed on another sidewall of outer case constitutes the online detection meter of a kind of static(al) formula suspension concentration.Simultaneously, concentration sensor and level sensor (float) all are arranged at the inside of internal box, and the base plane of the top surface level of concentration sensor and level sensor all is lower than the top plan of internal box.

Advantage of the present utility model is reasonable in design, and is simple in structure, fluid stable.Adopt moment-electric transducer to make concentration and liquid level converter, concentration sensor and level sensor (float) then respectively suspension type be connected on concentration and the liquid level converter, respectively converter is applied a power (static(al)) vertically downward.When fluid concentrations changed, the suffered buoyancy of concentration sensor (vertically upward) that is immersed in the fluid changed, and the static(al) that causes passing to the concentration converter changes; Change at fluid flow, when internal box overflow liquid level was changed, the suffered buoyancy of level sensor (float) that the bottom is dipped in the fluid changed, and the static(al) that causes passing to the liquid level converter changes.Concentration and liquid level converter convert its suffered static(al) and changing value thereof to electric signal, deliver to controller respectively.Carry out the concentration demonstration and send regulation and control instruction after the instantaneous concentration value signal that controller produces concentration sensor, the level change value signal that produces with level sensor compensate, revise, amplify.Therefore, the accuracy of detection height is measured the concentration accuracy and is reached 0.5-1%.Because the utility model does not adopt the U-shaped pipe, and adopt overflow weir formula internal box, avoided ore pulp plugging problem.Therefore, reliable operation is installed, operates and manage simple and convenient, is called as the online detection meter of " fool " formula fluid concentrations.It cheap has promotional value, can be widely used in the suspension (ore pulp) of coloured, ferrous metal ore dressing plant and coal preparation plant, and the non-suspension that also can be used for industries such as chemical industry is done the online detection of concentration.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the utility model one-piece construction synoptic diagram.

The square inside and outside body structure vertical view that Fig. 2 adopts for the utility model.

Fig. 3 adopts the cover plate vertical view of square inside and outside body structure for the utility model.

Fig. 4 is the concentration of an embodiment of the utility model and the front view of liquid level converter.

Fig. 5 is the vertical view of Fig. 4.

The utility model mainly is made up of casing, concentration detection, level detection and controller four major parts.

The chest portion branch comprises outer case 1, internal box 2, cover plate 3, feed tube 12 and discharging tube 13.Outer case 1 can be made squarely, also can do circular.Internal box 2 is positioned at the inside of outer case 1, and the end common with it, same profile, can also with outer case 1 totally one sidewall (as Fig. 1 and Fig. 2).Inside and outside casing all is uncovered, but the top plan of internal box 2 will be lower than the top plan of outer case 1.Cover plate 3 is fixed on by screw 15 on the nib at outer case 1 top, support 11 of welding on the upper surface of cover plate 3.After feed tube 12 passes the sidewall of outer case 1, be welded on the sidewall of internal box 2 and outer case 1.Discharging tube 13 is welded on another sidewall of outer case 1.Feed tube 12 and discharging tube 13 generally are installed on the opposing sidewalls of outer case 1.Liquid flows into internal box 2 from feed tube 12, then from internal box 2 top overflows to the space between the inside and outside casing, discharge from discharging tube 13 again.

The concentration branch comprises concentration sensor 4, pole 5, concentration converter 6 and sensor cage 10.The top of concentration sensor 4 affixed very thin pole 5, pole 5 is connected on the concentration converter 6 after passing hole on the cover plate 3, makes concentration sensor 4 be in suspension status.Concentration converter 6 is moment-electric transducers, it can directly adopt the pressure sensor 19 of weighing (such as: commercially available GEB type LOAD CELLS), and be fixed on the crossbeam that support 11 tops are provided with.Also can form (as Fig. 4, Fig. 5) by the pressure sensor 19 of weighing, amplifier 20 and converter seat 21, converter seat 21 is screwed on the sidewall of support 11 (as Fig. 1), the pressure sensor 19 of weighing is screwed on converter seat 21, and amplifier 20 is connected the electrical signal of the pressure sensor 19 of weighing.Increase an amplifier, make the signal that transmits to controller 14 stronger, fade resistance is good, favourable raising accuracy of detection.Pole 5 is enclosed within the external part of the pressure sensor 19 of weighing, and fixing with nut 23.The acting force vertically downward (static(al)) that the 4 pairs of concentration converters of concentration sensor 6 that hang produce, pressure sensor 19 changes into electric signal by weighing, by or do not amplify by amplifier 20 after, by cable 17 input controllers 14, the power supply of the pressure sensor 19 of weighing is also supplied with by cable 17.

Concentration sensor 4 is arranged under the top plan (spillwag chute) of internal box 2, can be immersed in the fluid fully.It is the little smooth solid of top point, and material of selecting for use and the geometric configuration of making should be able to prevent that suspended particle in the fluid is at its surface deposition.It is that cylindrical, bottom is spherical solid for conical, middle part that concentration sensor 4 is made generally in top.Also can make top is columniform solid for conical, bottom.Also can make top is that cylindrical, bottom is obconic shuttle shape solid for conical, middle part.It is made top point, big, the streamlined solid of xsect for justifying in bottom, best results, but difficulty of processing is more greatly.The sharp little top of concentration sensor 4 is welded on the lower end of very thin pole 5.Concentration sensor 4 can be made hollow solid, or solid solid, proportion by the proportion of the selection of material and fluid concentrations to be measured when maximum determines that in the time of should be able to guaranteeing that fluid concentrations to be measured is maximum, acting force (static(al)) direction of 4 pairs of concentration converters 6 of concentration sensor still vertically downward.

In order to prevent that fluid flow is big, when flow velocity is high, make concentration sensor 4 that teeter take place, influence accuracy of detection, therefore a sensor cage 10 that is fixed tightly on the cover plate 3 is set, concentration sensor 4 is covered in the cage.The diameter largest portion and the gap between the sensor cage 10 of concentration sensor 4 are very little, and therefore, its teeter amplitude is subjected to strict restriction, but its length travel is not subjected to any obstruction.An embodiment of sensor cage 10 makes square, it is that screw mandrel, lower end are fixedly connected into foursquare four montants by cross bar and form by the upper end, after every montant passes hole 22 on the cover plate 3, be clamped on the cover plate 3 with being positioned at a pair of nut 16 of cover plate about in the of 3, shown in Figure 3 is exactly the cover plate 3 that this embodiment uses.Sensor cage 10 also can be connected into circular by cross bar or polygonal many montants are formed by the lower end.

Level detection partly comprises level sensor (float) 7, pole 8 and liquid level converter 9.Level sensor 7 is that a bottom is the hollow smooth solid on plane, and the part of its bottom is positioned under the top plan (spillwag chute) of internal box 2, even this is partially immersed in the fluid.Pole 8 of the top of level sensor 7 welding, pole 8 are connected on the liquid level converter 9 after passing hole on the cover plate 3, make level sensor (float) be in suspension status, and it to the acting force of liquid level converter 9 also all the time vertically downward.Liquid level converter 9 is screwed on support 11.Liquid level converter 9 is moment one electric transducers identical with concentration converter 6 26S Proteasome Structure and Function safety.When the liquid level in the internal box 2 changes, the static(al) that is delivered on the liquid level converter 9 by level sensor (float) 7 also changes, liquid level converter 9 converts this static(al) and changing value thereof to electric signal, and by cable 18 input controllers 14, detectable concentration is compensated, proofreaies and correct, eliminate the influence of liquid fluctuating, thereby guaranteed accuracy of detection of the present utility model the detectable concentration value.Liquid level converter 9 required power supplys are also supplied with by cable 18.

Controller 14 with the electric signal of concentration converter 6 and liquid level converter 9 inputs treated and zoom into the conventional criteria signal after, at its Table A ₂On demonstrate the instantaneous delivery value, at its Table A ₁On demonstrate instantaneous concentration value after flow-compensated correction so that observe among the operator and carry out necessary adjustment.Controller 14 can also print detectable concentration value signal input printer, after also detectable concentration value and control concentration set point can being compared, to relevant support equipment (such as: purge valve) send instruction, convection cell concentration is adjusted, to keep the constant of fluid concentrations.Table A ₁And Table A ₂Can be digital instrument, also can be pointer instrument.

Claims (5)

1, the online detection meter of a kind of static(al) formula suspension concentration, comprise controller [14], it is characterized in that it is by outer case [1], be total to the end with outer case [1], and its top plan is lower than the internal box [2] of outer case [1] top plan, be fixed on the cover plate [3] at outer case [1] top by screw [15], be anchored on the support [11] on the cover plate [3], be fixedly connected on moment-electric change type concentration converter [6] and liquid level converter [9] on the support [11], be connected concentration sensor [4] on the concentration converter [6] by pole [5] suspension type, be connected level sensor (float) [7] on the liquid level converter [9] by pole [8] suspension type, concentration sensor [4] is covered on its inside, limiting concentration sensor [4] teeter amplitude, and be fixed tightly in sensor cage [10] on the cover plate [3], pass outer case [1] sidewall, the discharging tube [13] that is fixed in the feed tube [12] on internal box [2] sidewall and is fixed on another sidewall of outer case [1] constitutes, concentration sensor [4] and level sensor [7] all are arranged on the inside of internal box [2], and the base plane of the top surface level of concentration sensor [4] and level sensor [7] all is lower than the top plan of internal box [2].

2, the online detection meter of static(al) formula suspension concentration according to claim 1, it is characterized in that concentration sensor [4] can be that top point, bottom are big, xsect is round streamlined solid, also can be that top is that conical, middle part is that cylindrical, bottom is spherical smooth solid, also can be that top is that conical, bottom is columniform smooth solid, can also be that top is that conical, middle part is that cylindrical, bottom is the smooth solid of obconic shuttle shape.

3, the online detection meter of static(al) formula suspension concentration according to claim 2 is characterized in that concentration sensor [4] can be hollow, or solid solid.

4, the online detection meter of static(al) formula suspension concentration according to claim 1, it is characterized in that concentration converter [6] and liquid level converter [9] all are to be made of with the amplifier [20] that is connected in the pressure sensor of weighing [19] electrical signal the pressure sensor of weighing [19] that is fixed on the converter seat [21], converter seat [21] is fixed on the support [11].

5, the online detection meter of static(al) formula suspension concentration according to claim 1, it is characterized in that sensor cage [10] is a screw mandrel by the upper end, and be linked to be foursquare four montants in the lower end by cross bar and form, after every montant passes cover plate [3], be clamped on the cover plate [3] by being positioned at cover plate [3] a pair of nut [16] up and down.

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