KR100329172B1 - fluorine throwing device of water works - Google Patents

Abstract

PURPOSE: A system for automatically feeding powdery fluorine into waterworks is provided to keep dissolved fluorine concentration of water constant as well as reduce occupational diseases due to manual fluorine feeding. CONSTITUTION: In a system for automatically feeding powdery fluorine into waterworks including a dilution tank(26a) in which fluorine powder and raw water are mixed by agitator(32',32''); a sensor(74) which measures the dissolved fluorine concentration of purified water after water purification; and a controller(76) which controls all of the system including fluorine dosage amount by comparing the measured data, the system further comprises a baffle plate(28) that divides the dilution tank into a first chamber and a second chamber to completely dissolve fluorine powder into water; a hopper(20) and a step motor(16) for feeding fluorine powder quantitatively; a check valve(46); an injector(48); a flowmeter(86) which is installed at the lower part of a diffuser(56).

Description

Fluorine throwing device of water works

The present invention relates to a fluorine injection device of water supply, in particular, to change the supply of fluorine in the powder state to the unmanned operation to reduce occupational diseases generated in the workplace, and to quantify the amount of fluorine supplied into the tank according to the purified water flow rate By supplying the amount of dissolved fluorine, the present invention relates to a fluorine injector of water supply, which keeps the concentration of dissolved fluorine at all times constant.

In general, the water supply is made of clean water by finally adding chlorine using granular activated carbon filter paper, which is an advanced water treatment facility, in the process of passing raw water taken from the intake station to landing, mixed, sedimentary, filter, and purified water. Supplied to.

In general, a small amount of chlorine is added in the process of sterilizing and disinfecting the raw water to make the purified water, but recently, fluorine is introduced in order to prevent damage caused by the toxicity of the chlorine and to keep the teeth healthy.

1 is a block diagram showing the configuration of a general fluorine injection device. First, the overall structure of the fluorine injection device includes a supply portion 10a, a chemical dilution tank 36 provided on the discharge side of the supply portion 10a, and a chemical dilution tank. A unit 76a which is connected to the 36 and controls the diffuser 56 for injecting liquid fluorine into the transfer line 64 connecting the filter paper 60 and the purified water 68 and the first and second pumps 50 and 52. It is composed of

Here, the supply part 10a is provided to the table 12, the feed part 20 provided on this table 12, and the hopper 22 which temporarily stores powdered fluorine in the upper part of the feed part 20. do. The feed part 20 consists of a 1st motor 16a, the gear 14a connected to a motor shaft, a feed screw, and a housing.

The chemical dilution tank 36 is provided with a body 26 and a first stirrer 34a having a fan that rotates with the second motor 32a at the upper center of the body 26, and supplies water from the purified water 68. The discharge sides of the first and second pumps 50 and 52 are connected to the first pipe 53 so as to be supplied into the tank 36, and a control valve 38 is provided at the end of the first pipe 53. . Then, the dilute fluorine solution overflowed is connected to the second pipe 43 on one side of the upper end thereof so as to be supplied to the diffuser 56.

In this way, when the operator transports the powdered fluorine and puts it in the hopper 22, the power of the first motor 16a installed at the lower end portion of the powder rotates the feed screw via the gear 14a. The powder is supplied into the chemical dilution tank 36 by a predetermined amount by the rotation of the movable screw.

The powder supplied into the chemical dilution tank 36 is mixed with the water sucked by the first and second pumps 50 and 52 and dissolved by the first stirrer 34a, and the liquid fluorine solution overflows. The liquid fluorine is introduced into the transfer line 64 by being supplied to the diffuser 56 through the second pipe 43.

However, in the process of transporting the powdered fluorine to make the liquid fluorine into the storage hopper, fine powder diffuses into the air and enters the worker's respiratory tract, thereby causing occupational diseases.

In addition, the fluorine introduced into the tank through the supply unit is diluted through a single stirrer installed in the center, and there is another problem that the efficiency of dilution is lowered by supplying the overflowed fluorine liquid through the diffuser.

In addition, by diluting only fluorine supplied from the supply unit regardless of the amount of fluorine contained in the purified water through this process, the amount of dissolved fluorine is added unevenly, which makes it difficult to maintain accurate fluorine concentration.

Accordingly, the present invention has been made to solve such a problem, by transporting and storing powdered fluorine in a storage hopper using a vacuum transfer device, thereby lowering the occupational disease incidence of workers and storing the stored fluorine at a purified flow rate. It is an object of the present invention to provide a fluorine injecting device having a tap water that can be added and subtracted in a uniform state at all times to obtain purified water in which fluorine is appropriately added.

1 is a block diagram showing the configuration of a general fluorine injection device.

Figure 2 is a block diagram showing the configuration of a fluorine injection device according to the present invention.

* Description of the symbols for the main parts of the drawings *

2: transfer section 4: vacuum generator

6: Vacuum transfer device 7: Flexible pipe

8: Suction unit 10: Supply unit 16: Step motor 20: Feed unit

20: powder storage hopper 26a: dilution tank

28: Baffle plate 32'.32 ": 2nd and 3rd stirrer

46: check valve 48: injector

56: diffuser 72: sample water pump

74: measuring instrument 76: control unit

78: monitoring system 80: output device

84: control unit 86: flow meter

The present invention for achieving the above object is a chemical dilution tank with a stirrer to add fluorine powder to mix and dilute with the raw water, and a measuring device for taking a portion of the purified water to measure the amount of dissolved fluorine; In the water supply fluorine injection device including a control unit for controlling the entire device by comparing the value of the measuring device as well as the entire apparatus, a monitoring system and an output device connected to the control unit, the inside of the space of the chemical dilution tank A transfer unit which separates into a baffle plate and has a plurality of stirrers so as to dilute fluorine throughout the first and second stages, and at the same time sucks powder fluorine into a vacuum to automatically discharge fluorine powder into the chemical dilution tank; A supply unit including a powder storage hopper installed under the transfer unit and a feed unit driven by a step motor; A check valve installed between the chemical dilution tank and the diffuser at the overflow side of the chemical dilution tank, and an injector for diluting completely undiluted; It is achieved to provide a fluorine injection device of water supply, characterized in that it further comprises a flow meter installed in the lower portion of the diffuser to measure the flow rate of water produced in the filter paper.

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

Figure 2 is a block diagram showing the configuration of the fluorine injection device according to the present invention. As shown in Figure 2, the fluorine injection device of the present invention is in contact with the body moisture when the fluorine in the form of powder contact the human body It is possible to adversely affect the fluorine in the powder storage hopper 22 of the supply unit 10 when using the vacuum conveying station (6) value of the automated transfer unit 2 so that direct contact with the human body does not occur In addition, conventionally, a chemical dilution tank 26a consisting of one tank is manufactured as a chemical dilution tank 26a in which two tanks are integrally formed, and the first dissolved dilution water is completely dissolved after the second dilution. The injector 48 and the diffuser 56 are transferred to the injection point in the state. The injector 48 and the diffuser 56 are installed to dilute the fluorine concentration diluted in the chemical dilution tank 26a. Full horn to be In addition to the rapid transfer of dilution water, the dissolved fluorine concentration can be checked in real time to automatically and automatically adjust the amount of chemical input from the feed unit 20 according to the residual fluorine concentration to maintain a constant residual fluorine concentration at all times. It is characterized by the configuration.

Here, look at a more specific configuration of the fluorine injection device according to the present invention having the above characteristics as follows. First, the transfer unit 2 for conveying powder powder of the present invention is composed of a pressure and a blower not shown And a vacuum generator 4 for generating a vacuum, a vacuum transfer device 6 operating at a pressure of the vacuum generator 4, and a flexible pipe 7 connected to one side of the vacuum transfer device 6. Inhaler 8 for sucking the medicine from the place containing the powdered fluorine bag and the medicine and sending it to the vacuum transfer device 6, and controlling the vacuum generator 4 to start the vacuum transfer device 6 while the inhaler 8 And a vacuum transfer device control unit 84 which controls to suck the powder into the powder storage hopper 22 of the supply unit 10. The vacuum transfer device 6 includes a powder storage hopper ( 22) and the feed section 20 It is installed at the time to transfer the powder fluorine to the powder storage hopper 22, the vacuum transfer device control unit 84 is connected to the control unit 76 for controlling the fluorine injection device as a whole described in the prior art It is.

In the present invention, the fluorine injection device is provided with a supply unit 10 consisting of a powder storage hopper and a feed unit 20 driven by the step motor 16 at the lower portion of the transfer unit 2. At this time, the powder storage The hopper 22 is composed of an acrylic sight window, a manual inlet cover, a drug inlet, and a lower limit switch. The acrylic sight window can visually check the state of chemical storage, and the lower limit switch is far from the fluorine injection room. In the central monitoring panel and the control unit 76, which is not shown in the figure, the lower limit alarm of fluorine can be directly checked, and in case of inevitable due to the failure of the vacuum generator 4, the manual inlet cover can be opened and the fluorine can be added manually. In addition, as described in the related art, the feed part 20 is fired while the powder fluorine injected into the powder storage hopper 22 comes down and becomes full. In addition, the density of the powder is kept constant and the fluorine is uniformly discharged by adjusting the input amount into the chemical dilution tank 26a. Further, the inside of the space is separated on the output side of the supply part 10. A chemical dilution tank 26a having a plurality of second and third stirrers 32 'and 32 "respectively provided in a space partitioned by the built-in baffle plate 28 is connected, and the chemical dilution tank 26a is over. On the follower side, a check valve 46 for generating a vacuum by increasing the flow resistance of the fluorine solution overflowed from the chemical dilution tank 26a and a check valve 46 connected to the dilution of the undiluted fluorine solution are completely diluted. An injector 48 which provides a high speed up to 56 is provided. The fluorine injection device of the present invention is installed in conjunction with a lower portion of the diffuser 48 to measure a flow rate produced by the filter paper 60. A portion of the purified water is collected by the sample water pump 72 and the fluorine concentration measuring device 74 for measuring the amount of dissolved fluorine is compared with the value of the measuring device 74, and the step motor 16 is added or subtracted. The controller 76 further controls the entire fluorine injection device, as well as the monitoring system 78 and the output device 80 connected to the controller 76.

At this time, the dilution tank 26a is installed to be completely dissolved through the third stirrer 32 "installed on one side through the first dilution state through the second stirrer 32 ', and completely dissolves the powdered fluorine. In order to achieve this, it is desirable to have a residence time of about 10 minutes.

The flow meter 66 detects a pulse signal generated by using a rotational force caused by a constant flow rate of an impeller mounted therein, and measures the flow rate thereof. The controller 76 transmits a 20 kHz output signal to provide a fixed volume for controlling the rotation speed of the step motor 16. That is, when the flow rate is large, the rotation speed of the step motor 16 of the feed unit 20 is increased, and when the flow rate is small, the rotation speed is reduced to adjust the amount of fluorine introduced from the feed unit 20, and the fluorine concentration based on water supply is adjusted. It is preferable to stop the fluorine input at 0.9 ppm or more.

Looking at the process of correcting the dissolved fluorine concentration in the powder fluorine input process using the fluorine input device according to the present invention configured as described above is as follows. Water supply from the water supply 68 using the pressurized water pump (51, 52) The water is taken into the chemical dilution tank 26a to be mixed with the chemical, and the vacuum generator 4 is operated to vacuum suction a certain amount of powdered fluorine into the inhaler 8 with the vacuum force, and then the flexible pipe. Through (7) a large amount of fluorine powder is sucked into the vacuum transfer device (8).

The sucked fluorine powder is supplied to the powder storage hopper 22 installed at the lower portion thereof, and the powdered fluorine thus transported is filled with the feed part 20 so that the density of the powdered fluorine is kept constant and the chemical dilution tank 26a. In this state, the controller 76 compares the measured value of the measuring device 74 measuring the amount of fluorine contained in the purified water collected by the operation of the sample water pump 72. The step motor 16 of the feed unit 20 is rotated according to the supply amount. In other words, the fluorine concentration of the raw water is analyzed before the chemical is introduced into the chemical dilution tank 26a from the feed unit 20 to determine a constant amount of raw water. In order to maintain the residual fluorine concentration, the residual fluorine is measured by the measuring device 74, and then the rotation speed of the step motor 16 of the feed unit 20 is adjusted according to the residual fluorine concentration of the raw water. Controlled dosage of All.

At this time, the chemical input amount in the feed unit 20 is also adjusted according to the flow rate value measured by measuring the water production amount in the filter paper 60 with the flow meter (66). When the fluorine input amount is determined and adjusted by the above-described method, a certain amount of fluorine is supplied into the chemical dilution tank 26a by the rotation of the step motor 16, and through the second and third stirrers 32 'and 32 ". That is, in the chemical dilution tank 26a, raw water taken by the pressurized water pumps 51 and 52 through the first and second stages by the respective second and third stirrers 32 'and 32 " Fluoride is well mixed, and the raw water containing a certain amount of fluorine that is well mixed with fluorine in the chemical dilution tank 26a is completely mixed by the injector 48 to the part which is not diluted, and completely in the injector 48. Raw water containing the mixed fluorine is quickly transported to a long distance to the diffuser 56.

At this time, the dissolved fluorine solution is overflowed by the purified water supplied, the pressure is changed in the process of passing through the check valve 46, and then the remaining unfluorinated fluorine is dissolved and supplied to the diffuser 56 via the injector 48. In other words, the chemical dilution water sent to the diffuser 56 is added to a predetermined amount of water produced by the filter paper 60, and the chemical dilution water is introduced into the purified water 68 ), And the raw water taken from the purified water (68) to the sample water pump (72) is sent to a measuring device (74) for automatically measuring fluorine to measure the residual fluorine concentration in the purified water (68) to maintain the standard concentration. The control unit 76 instructs the feed unit 20 to input fluorine through an iterative process of adjusting the fluorine input amount.

As described above, the present invention, in the fluorine injection device of water supply, by supplying powdered fluorine to the feeder (feeder) using a vacuum, to improve the working environment to lower the incidence of occupational diseases, and The concentration of dissolved fluorine dissolved in the purified water is to maintain the constant amount of fluorine to supply.

Claims (2)

A chemical dilution tank equipped with a stirrer for mixing and diluting fluorine powder with raw water, and a measuring device for collecting a portion of purified water and measuring the amount of dissolved fluorine; In the water supply fluorine injection device including a control unit for controlling the entire device by comparing the value of the measuring device, as well as controlling the entire device, a monitoring system and an output device connected to the control unit, Separating the inside of the space of the chemical dilution tank with a baffle plate to provide a plurality of stirrers so that fluorine is diluted in the first and second stages, and at the same time by inhaling powder fluorine in a vacuum to inject fluorine powder into the chemical dilution tank. A conveying unit for discharging the gas; A supply unit including a powder storage hopper installed under the transfer unit and a feed unit driven by a step motor; A check valve installed between the chemical dilution tank and the diffuser at the overflow side of the chemical dilution tank, and an injector for diluting completely undiluted; The fluorine injection device of the tap water, characterized in that it further comprises a flow meter installed in the lower portion of the diffuser to measure the flow rate of water produced in the filter paper. The method of claim 1, The conveying unit is composed of a pressure generator and a blower to generate a vacuum, a vacuum conveying apparatus that operates at the pressure of the vacuum generator, and a flexible pipe connected to one side of the vacuum conveying apparatus is filled with powder fluorine bag and medicine A suction unit for sucking the chemicals from the place and sending them to the vacuum transfer unit, and a vacuum transfer unit control unit controlling the vacuum generator to control the vacuum generator to suck the powder into the suction unit and transfer the powder to the powder storage hopper of the supply unit. Water supply fluorine injection device, characterized in that consisting of.