KR101061983B1 - Powder melting device having concentration measuring device - Google Patents

Abstract

The present invention relates to a solid particle dissolving device equipped with a concentration measuring device, comprising: a dissolution tank in which a solid chemical is dissolved in water; And a concentration measuring device connected to the dissolution tank to measure the concentration of the chemical solution in the dissolution tank, wherein the concentration measuring device includes an automatic concentration measurement module for measuring the concentration using buoyancy. . In this way, a concentration measuring device capable of automatically measuring the concentration is added to reflect in real time whether to increase or decrease the amount of the polymer input by the control panel based on the concentration value of the automatically measured polymer chemical solution. The most ideal and effective concentration for the performance can be maintained, it can be expected to improve the water treatment efficiency.

Description

Solid melting device having concentration measuring device {Powder melting device having concentration measuring device}

The present invention relates to a solid particle dissolving device equipped with a concentration measuring device, and more particularly, based on a concentration value of a chemical solution automatically measured by adding a concentration measuring device capable of automatically measuring the concentration. By reflecting in real time whether or not to increase or decrease the dosage of solid chemicals by the panel, it is possible to maintain the most ideal and effective concentration for the performance of chemicals, and to dissolve solid particles equipped with a concentration measuring device, which can be expected to improve water treatment efficiency. Relates to a device.

Water treatment facilities for sewage or wastewater treatment plants use polyacrylamide or water-soluble polymer chemicals in the form of solid particles, such as copolymers of acrylamide and acrylate.

These polymers are dissolved in a proportion with water and then introduced into a treatment process. An apparatus for dissolving solid particles, ie polymers, is used for this purpose. The polymer dissolution device has several known technologies, including Korean Patent Office Registration No. 10-0656568.

1 is a schematic plan view of a polymer, ie, solid particle dissolving device according to the prior art, and FIG. 2 is a side view of FIG.

Referring to these drawings, the solid particle dissolving apparatus 1 according to the prior art includes a dissolution tank 2, a aging tank 3, and a supply tank 4.

The polymer, which is a solid particle drug stored in the hopper 5, is introduced into the rinsing funnel 7 through the feeder 6, and the polymer is again introduced into the dissolution tank 2 through the disperser 8 together with water to dissolve the bath. After dissolving in (2), it is supplied through the feed tank 4 via the aging tank 3.

At this time, the input amount of the polymer and the input amount of water thereto are preset by the control panel 10, and the input amount is set by the set amount.

On the other hand, in the normal state, the above operation proceeds smoothly, but there are various factors that hinder the setting of a certain concentration, such as a foreign matter stuck to the feeder 6, which causes a problem in transporting the polymer in the solid state, or inadequate water supply. Can be generated.

However, since the device for measuring the concentration of the polymer drug solution formed by dissolving the polymer in water has not been applied to the solid particle dissolving device known to date, the concentration of the polymer drug solution could not be accurately measured. It is necessary to take measures to deal with this problem because the use of polymers is unnecessarily increased due to the high or the chemicals cannot be efficiently processed at low concentrations.

Korea Patent Office Registration No. 10-0656568

The object of the present invention is to reflect in real time whether to increase or decrease the dose of solid drug by the control panel based on the concentration value of the chemical solution which is automatically measured by adding a concentration measuring device capable of automatically measuring the concentration. By providing a solid particle dissolving device equipped with a concentration measuring device that can maintain the most ideal and effective concentration to exhibit the performance of the drug to improve the water treatment efficiency.

The object is a dissolved tank in which the solid medicine is dissolved by water; And a concentration measuring device connected to the dissolution tank to measure the concentration of the chemical solution in the dissolution tank, wherein the concentration measuring device comprises an automatic concentration measurement module for measuring the concentration using buoyancy. A solid particle dissolving device equipped with a concentration measuring device is achieved.

The concentration measuring apparatus may further include at least one concentration measuring sensor which is immersed in the dissolution tank to measure the concentration of the chemical solution.

The concentration sensor is a rod-type sensor formed so that two probes are exposed at a lower end thereof, and alternating current may be applied to the probe.

The automatic concentration measurement module, buoyancy tank disposed in the buoyancy addition; A chemical solution pump for pumping the chemical solution to supply the chemical solution in the aging tank to the buoyancy tank; A boost unit which is operated in conjunction with the operation of the buoyancy weight which is buoyantly moved according to the chemical solution supplied into the buoyancy tank; A load cell connected to the power unit, the load cell sensing the strength of the force according to the operation of the power unit and converting the power signal into an electrical signal; And a controller for converting the electrical signal from the load cell into a number and then converting the concentration value of the chemical solution on the basis of a previously input table to display the control panel.

The reinforcement unit includes a unit body; A lever supported by the support shaft to be rotatably supported by the unit body and having end portions connected to the buoyancy weight and the load cell, respectively; And it may include a pivot shaft for forming the axis of rotation of the lever.

The automatic concentration measurement module, the first rod end bearing is connected to the upper end of the buoyancy weight so that the buoyancy applied to the buoyancy weight is transmitted vertically without loss; And a second rod end bearing connected between the load cell and the power unit to finely adjust the level of the lever.

The automatic concentration measurement module, the chemical solution supply pipe connecting the aging tank and the buoyancy tank; Pedestal for supporting the buoyancy tank; A horizontal adjustment member provided between the pedestal and the buoyancy tank to adjust the horizontality of the buoyancy tank; A drain pipe provided at a lower end of the buoyancy tank; And an overflow pipe connected to an overflow flow hole formed in a side wall of the buoyancy tank.

The automatic concentration measurement module may further include a plurality of buoyant weight cleaning nozzles disposed around the buoyant weight to wash the outer wall of the buoyant weight.

According to the present invention, by adding a concentration measuring device capable of automatically measuring the concentration of the drug by reflecting in real time whether to increase or decrease the dose of the solid drug by the control panel based on the measured concentration value of the drug solution The most ideal and effective concentration to maintain the performance can be maintained, the effect can be expected to improve the water treatment efficiency.

1 is a schematic plan view of a solid particle dissolving device according to the prior art,
2 is a side structural view of FIG. 1;
Figure 3 is a schematic plan structure diagram of a solid particle dissolving apparatus equipped with an automatic concentration measurement module according to an embodiment of the present invention,
4 and 5 are side and front structural views of FIG. 3, respectively;
6 is an enlarged view of an automatic concentration measurement module;
7 is a plan view of the automatic concentration measurement module,
8 is a structural diagram of a power unit applied to FIG.
9 is a reference table of the buoyancy value and the concentration value measured by the automatic concentration measurement module,
FIG. 10 is a correlation graph between concentration values derived from the reference table of FIG. 9 and buoyancy values,
11 is a side structure diagram of a solid particle dissolving device equipped with a concentration sensor;
12 is a block diagram of a concentration measuring sensor,
13 is a circuit diagram of a concentration measuring sensor;
14A is a reference table for voltage values and concentration values measured using a concentration sensor;
FIG. 14B is a correlation graph of voltage values and concentration values derived by the reference table of FIG. 14A.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

3 is a schematic plan view of a solid particle dissolving apparatus equipped with an automatic concentration measurement module according to a first embodiment of the present invention, FIGS. 4 and 5 are side and front views of FIG. 3, respectively, FIGS. 6 and 7 9 is an enlarged view and a plan view of the automatic silver concentration measurement module, FIG. 8 is a structural diagram of a boost unit, FIG. 9 is a diagram of a reference table between concentration and buoyancy values, and FIG.

Referring to these drawings, the solid particle dissolving apparatus 100 according to the present embodiment includes a dissolving tank 102, a aging tank 103, and a supply tank 104, and a concentration measuring device is added. First, according to the first embodiment of the present invention, the concentration measuring apparatus is applied to the concentration automatic measuring module 110 in FIGS. 3 to 8, and the automatic concentration measuring module 110 is designed to measure the concentration using buoyancy.

Concentration automatic measurement module 110, after pumping the polymer drug solution formed by dissolving the polymer, which is a solid drug in water in the aging tank 103, and injected into the concentration automatic measurement module 110, the concentration automatic measurement module 110 In the above, the concentration of the polymer chemical solution is measured, and the measured polymer chemical solution has a flow which is re-introduced into the dissolution tank 102 again. Of course, the illustrated embodiment is provided with a three-stage dissolution tank consisting of the dissolution tank 102, the aging tank 103 and the supply tank 104 to pump the polymer chemical solution from the aging tank 103 to the concentration of the polymer chemical solution. Although illustrated as measuring, it may be used by pumping from a dissolution tank or a supply tank, of course, the present invention can be applied to a dissolution apparatus having a two-stage or single dissolution tank.

In the illustrated embodiment, the dissolution tank 102 forms a place where the polymer, which is a solid drug for water treatment, is dissolved in water and formed into a polymer drug solution. The aging tank 103 is a place where the polymer chemical solution maintained at a constant concentration is filled, and the supply tank 104 is a place for storing the polymer chemical solution in a later process.

In this embodiment, the reason why the concentration of the polymer chemical solution is measured by using buoyancy is that the polymer chemical solution is a viscous fluid and the concentration cannot be measured by the conventional concentration measurement method using permeability or surface tension. Because.

The automatic concentration measurement module 110 includes a buoyancy tank 113, a polymer chemical solution pump 115, a boost unit 117, a load cell 119 and a controller (not shown).

The buoyancy tank 113 is a place where the polymer chemical solution in the aging tank 103 is filled. Inside the buoyancy tank 113, a buoyancy weight 111 for buoyancy movement is disposed according to the polymer chemical solution to be filled. The shape of the buoyancy weight 111 may vary depending on the characteristics of the solution, but in this embodiment, a conical shape having a lower end is employed. The first rod end bearing 114 is installed on the upper end of the buoyancy weight 111 to serve to vertically transmit the buoyancy generated without loss.

One side of the buoyancy tank 113 is connected to the maturation tank 103 by the polymer chemical solution supply pipe 123. A pedestal 125 supporting the buoyancy tank 113 is provided below the buoyancy tank 113. The pedestal 125 supports the concentration automatic measurement module 110.

Between the pedestal 125 and the buoyancy tank 113 is mounted a horizontal adjusting member 127 for adjusting the horizontality of the buoyancy tank 113.

A lower end portion of the buoyancy tank 113 is provided with a drain pipe 129 for draining the polymer chemical solution therein. The drain pipe 129 may be provided with a ball valve 129a.

The side wall of the buoyancy tank 113 is provided with an overflow pipe 131 connected to an overflow hole formed in the side wall of the buoyancy tank 113.

The washing nozzle 133 is provided inside the buoyancy tank 113. As shown in FIG. 7, a plurality of cleaning nozzles 133 are disposed along the circumferential direction of the buoyancy weight 111 around the buoyancy weight 111, and a viscous polymer fluid adheres to the buoyancy weight 111. It serves to wash the outer wall of the buoyancy weight 111 so as not to affect the buoyancy.

The polymer chemical solution pump 115 is provided on the polymer chemical solution supply pipe 123 to pump the polymer chemical solution such that the polymer chemical solution in the aging tank 103 is supplied to the buoyancy tank 113.

The reinforcement unit 117 is a structure that is operated in conjunction with the operation of the buoyancy weight 111 is buoyant movement in accordance with the polymer chemical solution supplied into the buoyancy tank 113.

The reinforcing unit 117 is rotatably supported on the unit body 117b by the unit body 117b and the support shaft 117a, as shown in FIG. ) And a pivot shaft 117d connected to the load cell 119, respectively, and a pivot shaft 117d forming a rotation axis of the lever 117c. The pivot shaft 117d may be applied as a bearing. In the structure of the power unit 117, the strength of the force applied to the load cell 119 can be increased by adjusting the pivot shaft 117d.

That is, the distance from the pivot shaft to the one end of the lever 117c to which the buoyancy weight 111 is connected, and the other end of the lever 117c to which the load cell 119 is connected to the pivot shaft 117d as a starting point. The ratio of the distance may be, for example, 5: 1, in this case, it is possible to transfer the buoyancy generated on the buoyancy weight 111 side to the load cell 119 with a 5 times increased force according to the principle of the lever. Therefore, when the force applied to the buoyancy weight 111 is small, a large force may appear on the opposite side of the load cell 119 by adjusting the distance from the pivot shaft 117d by using the principle of the lever.

On the other hand, the concentration automatic measurement module 110 of the present embodiment is further provided with a second rod end bearing 118 connected between the load cell 119 and the power unit 117 to fine-tune the level of the lever 117c. The second rod end bearing 118 may play a role of finely adjusting the level of the first lever 117c when preparing the table of FIG. 9.

The load cell 119 is connected to the lever 117c of the power unit 117 and detects the strength of the force according to the operation of the lever 117c and converts it into an electrical signal.

The controller (not shown) converts the electrical signal from the load cell 119 into a number and converts the concentration value of the polymer chemical solution to the control panel 121 based on a table previously input, for example, a table as shown in FIG. 9. Control to display.

The table of FIG. 9 is a reference table for buoyancy measurement. The buoyancy when clean water is filled up to the overflow line of the buoyancy tank 113 (see the dotted line in FIG. 6) is reported as zero, and the sample for each concentration thereafter. The buoyancy value for is measured. That is, since the buoyancy increases as the concentration of the polymer drug increases, the buoyancy value of each sample can be measured several times, and the average value can be set to the buoyancy value corresponding to the concentration.

Accordingly, it is possible to derive a correlation graph between the concentration and buoyancy as shown in FIG. 10. If any buoyancy value is detected by the electrical signal from the load cell 119, the control panel 121 immediately corresponds to the concentration graph. The value will appear and thus the dosage of the polymer drug can be adjusted.

Referring to the operation of the solid particle dissolving device 100 having such a configuration as follows.

The polymer chemical solution in the aging tank 103 is pumped through the polymer feed pump 115 and introduced into the buoyancy tank 113. Then, buoyancy force is applied to the buoyancy weight 111 in the buoyancy tank 113 so that the buoyancy weight 111 is buoyant and the force according to the buoyancy movement is amplified through the lever 117c of the boosting unit 117 to load cell. It is said to (119).

The load cell 119 converts the magnitude of the applied force into an electrical signal and transmits it to the controller, and the controller converts the concentration value of the polymer chemical solution into a control panel 121 based on the correlation graph as shown in FIG. 10. Accordingly, it is possible to achieve the desired concentration value by manually or automatically adjusting the dosage of the polymer drug.

According to the present embodiment having the structure and operation as described above, the control panel is implemented based on the concentration value of the polymer chemical solution automatically measured by implementing the concentration measuring device as the concentration automatic measuring module 110 capable of automatically measuring the concentration. By reflecting in real time whether or not to increase or decrease the amount of the polymer input by the (121) it is possible to maintain the most ideal and effective concentration for the performance of the drug can be expected to improve the water treatment efficiency.

11 is a view illustrating another embodiment of the present invention, wherein the concentration measuring device 140 measures a concentration of a polymer chemical solution in a dissolution tank 102, a aging tank 103, or a supply tank 104 as a concentration measuring device. Is provided further. It may be installed in any one or two or more dissolution tanks of the dissolution tank, the aging tank and the supply tank, of course, can be applied to a dissolution device having a single dissolution tank or two stage dissolution tanks.

Referring to FIG. 12, the concentration sensor 140 displays a probe rod 140a formed to expose a probe at a lower end thereof, and a screen display for displaying the measured concentration value connected to the probe rod 140a through a cable 140c. It may be configured to include the device 140b.

The above-described automatic concentration measuring module 110 measures the concentration by pumping a polymer chemical solution as a sample and reflects it in real time, but if the concentration measuring sensor 140 is further provided as shown in FIG. Even if a problem occurs in the measurement module 110 can measure the concentration of the polymer chemical solution.

The probe of the probe rod 140a provided in the concentration sensor 140 has a square wave inverted by the square wave through the square wave generator 141 and the inverter 142 shown in FIG. 13, which is a schematic diagram of the circuit configuration of the concentration sensor 140. The wave is entered. As a result, alternating current is applied between the probes. In this embodiment, the alternating current is applied to the probe to prevent polarization of electrons in the solution, so that the average resistance value when the fluid is not aligned can be measured. This is in consideration of the special situation in which the fluid in the dissolving device is being stirred and flowed. This is because when the direct current is applied, the measurement value is so severe that a constant resistance value is not derived, resulting in inaccurate concentration measurement.

Accordingly, the probe applied with alternating current is immersed in the polymer chemical solution to measure the resistance of the polymer chemical solution, and the measured value is converted into a voltage value through the resistance-voltage converter 143, measured through the buffer 144, and then rectified. 145 and the low frequency filter 146 are converted into concentration values and displayed on the screen display device 140b.

At this time, the correlation graph between the voltage value and the concentration value (Fig. 14b) is a table for making a sample for each concentration and measuring the voltage value corresponding to the resistance value several times and setting the average voltage value to the voltage value corresponding to the concentration (Fig. 14a). Can be derived by writing

Therefore, by applying an alternating current to the probe of the probe rod (140a) to measure the resistance value and converting the resistance value to a voltage value, the concentration value corresponding to the voltage value measured using the correlation graph of the voltage value and the concentration value shown in Figure 14b Is displayed on the screen display device 140b to determine the concentration in the dissolution device. This makes it possible to adjust the dosage of the polymer drug to reach the desired concentration value.

Therefore, according to the present invention, by using the automatic concentration measurement module or concentration sensor as a concentration measuring device it is possible to measure the real-time concentration of the polymer drug solution that is flowing and stirred, thereby adjusting the input amount of the water treatment chemicals to improve the water treatment efficiency You can expect.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

100: solid particle dissolving device 102: dissolution tank
103: aging tank 104: supply tank
110: automatic concentration measurement module 113: buoyancy tank
115: polymer chemical solution pump 117: increasing unit
119: load cell 121: control panel
123: polymer chemical solution supply pipe 125: pedestal
127: horizontal adjustment member 129: drain pipe
131: overflow pipe 133: washing nozzle
140: concentration measuring sensor

Claims (8)

Dissolution tank in which the injected solid medicine is dissolved by water; And
It is connected to the dissolution tank and includes a concentration measuring device for measuring the concentration of the chemical solution in the dissolution tank,
The concentration measuring device is a solid particle dissolving device equipped with a concentration measuring device, characterized in that it comprises a concentration automatic measuring module for measuring the concentration using buoyancy. The method of claim 1,
Wherein the concentration measuring device is immersed in the dissolution tank solid particle dissolving apparatus equipped with a concentration measuring device further comprises at least one concentration measuring sensor for measuring the concentration of the drug solution. The method of claim 2,
The concentration sensor is a rod-type sensor formed so that the two probes are exposed at the lower end of the solid particle dissolving apparatus equipped with a concentration measuring device, characterized in that the alternating current is applied to the probe. The method of claim 1,
The concentration automatic measurement module,
Buoyancy tank disposed inside the buoyancy addition;
A chemical solution pump for pumping the chemical solution to supply the chemical solution in the aging tank to the buoyancy tank;
A boost unit which is operated in conjunction with the operation of the buoyancy weight which is buoyantly moved according to the chemical solution supplied into the buoyancy tank;
A load cell connected to the power unit, the load cell sensing the strength of the force according to the operation of the power unit and converting the power signal into an electrical signal; And
And a controller for converting the electrical signal from the load cell into a number and then converting the concentration value of the chemical solution on the basis of a previously input table to display the control panel in a control panel. Solid particle dissolving device provided. The method of claim 4, wherein
The power unit,
Unit body;
A lever supported by the support shaft to be rotatably supported by the unit body and having end portions connected to the buoyancy weight and the load cell, respectively; And
And a pivot shaft for forming a center of rotation of the lever. The method of claim 5,
The automatic concentration measurement module, the first rod end bearing is connected to the upper end of the buoyancy weight so that the buoyancy applied to the buoyancy weight is transmitted vertically without loss; And
And a second rod end bearing connected between the load cell and the boosting unit to finely adjust the horizontal level of the lever. The method of claim 4, wherein
The concentration automatic measurement module,
A chemical solution supply pipe connecting the dissolution tank and the buoyancy tank;
Pedestal for supporting the buoyancy tank;
A horizontal adjustment member provided between the pedestal and the buoyancy tank to adjust the horizontality of the buoyancy tank;
A drain pipe provided at a lower end of the buoyancy tank; And
And a overflow pipe connected to an overflow hole formed on the side wall of the buoyancy tank. The method of claim 4, wherein
The concentration automatic measurement module, the solid particle dissolving apparatus equipped with a concentration measuring device further comprises a plurality of buoyant weight washing nozzles disposed around the buoyancy weight to wash the outer wall of the buoyancy weight.

Images