JPH0742497Y2 - Salt dissolver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Field of Industrial Application The present invention relates to a salt dissolving device equipped with a device for automatically measuring the concentration of saline solution.

(2) Prior Art Saline solution is generally manufactured by an apparatus as shown in FIG.

First, salt 4 is put into a salt dissolving tank 3 provided with a perforated plate 1 horizontally installed in the lower part and a salt-dissolved water supply pipe 2 whose tip is located below the perforated plate 1 and connected to a water source, The salt-dissolved water is jetted from the tip of the supply pipe 2, and the salt solution is passed from the upper part of the salt-dissolved tank 3 to the relay tank
The salt water is made to overflow and is used as, for example, charging water for soy sauce production.

Then, the concentration of the saline solution is checked by collecting the overflowed saline solution and measuring the concentration of the saline solution with, for example, a coulometric densitometer or a Baume density meter.

(3) Problems to be Solved by the Invention However, in the above-mentioned prior art, the efficiency was poor because the sample liquid was manually sampled and the concentration thereof was measured.

Further, since bubbles are mixed in the saline solution immediately after dissolution, its concentration cannot be measured by an ultrasonic type or vibration type detector.

Therefore, the inventor of the present application, as a result of diligent research, found that the salt dissolution tank 3
If a saline solution measuring container is installed adjacent to the container, hold the saline solution while making a flow there, and always take in fresh saline solution, measure the saline solution with the saline solution measuring device. The inventors have completed the present invention by discovering that the salt concentration can be automatically checked.

That is, the invention of the present application is directed to a salt solution tank equipped with a salt solution supply device, and a salt solution concentration measuring container provided adjacent to the tank for receiving an overflow solution from the tank and having a saline water discharge port at the bottom. And a saline solution concentration detecting device and a liquid level detecting device provided inside the container, and the saline dissolving water supply device is controlled by the saline solution concentration detecting device and the liquid level detecting device. It is a salt dissolving device.

(4) Specific Means for Solving Problems First, in FIG. 2, 3 is a salt dissolving tank similar to that in FIG. 1, and 5 is a relay tank.
A cubic saline concentration measuring container 6 is installed adjacent to and inside the relay tank 5.

Reference numeral 7 denotes a control valve interposed in the salt-dissolved water supply pipe 2, which functions to control the supply of the salt-dissolved water, and the salt-dissolved water supply pipe 2 and the control valve 7 form a salt-dissolved water supply device 8. .

Next, FIG. 4 shows a detailed view of the saline solution concentration measuring container 6, the upper side 10 of which is formed lower than the upper side 9 of the salt dissolving tank 3, and the saline solution concentration measurement is performed beyond the upper side 9 of the salt dissolving tank 3. The saline solution that overflows into the container 6 is further configured to overflow from the container 6 into the relay tank 5.

Further, a saline solution outlet 12 is formed in the bottom portion 11 of the saline solution concentration measuring container 6. As a result, the saline solution that overflows from the saline solution tank 3 into the saline solution concentration measuring container 6 is constantly discharged by both the overflow port 12 and the overflow that exceeds the upper side 10, and the latest saline solution is constantly updated. Can be present in. In the normal dissolution action, the amount of water from the salt-dissolved water supply device 8 is
It is always adjusted to overflow the saline solution concentration measuring container 6.

In the hollow portion of the saline solution concentration measuring container 6, there is provided a cylinder 14 having a receiving net 13 at the bottom thereof and a liquid passage port 21 for flowing saline solution at the side wall thereof, and an upper portion of the cylinder 14. The metal detection devices 15 each having a ring shape coaxially with each other are installed.
A Baume densimeter 17 having a metal cap 16 on the top is housed and installed in the cylinder 14 through the metal detection device 15.

Although the liquid passage port 21 is provided in the cylinder 14 in the embodiment of FIG. 4, a wire mesh may be used as the cylinder 14. With this configuration, the saline solution in the cylinder 14 is always fresh and accurate measurement can be performed.

The metal detection device 15 is connected to the controller 18, detects the metal cap 16 fixed to the Baume gravimeter 17 that moves up and down according to the concentration of the saline solution, and sends the signal to the controller 18.

Here, the Baume density meter 17 equipped with the cylinder 14, the metal detector 15, and the metal cap 16 forms the saline concentration detector 20.

As the salt water concentration detection device 20, other coulometric or ultrasonic type concentration detection device or the like can be used.

Reference numeral 19 denotes a liquid level detection device for detecting the liquid level of the saline solution in the saline solution concentration measuring container 6, which is connected to the controller 18. Then, the controller 18 calculates that the signal from the metal detection device 15 becomes valid when the saline solution in the saline solution concentration measuring container 6 is at a certain level or higher, usually in an overflow state.

The control valve 7 is also connected to the controller 18, and is controlled by the controller 18 in conjunction with the signal from the liquid level detection device 19.

The present invention is configured as described above. First, the salt 4 is supplied to the salt dissolving tank 3, then the salt dissolving water is sent to the salt dissolving tank 3 through the salt dissolving water supply pipe 2, and the salt solution is produced. To be The salt solution in which the salt is thawed overflows sequentially and flows into the relay tank 5, and at the same time, flows into the salt solution concentration measuring container 6. At this time, in the saline solution concentration measuring container 6, the saline solution is discharged from the outlet 12 and at the same time overflows, so that the latest saline solution always exists in the container 6.

And the concentration of saline solution is measured by the Baume gravimeter 17,
When the concentration is above a certain level, the metal cap 16 is located above the metal detection device 15, so no signal is emitted and the control valve 7 remains open. During this period, the salt solution is continuously supplied to the salt solution tank 3 to produce the salt solution. At the same time, the liquid level detecting device 19 also confirms the water level in the saline concentration measuring device 6.

On the other hand, when the concentration of the saline solution becomes lower than the specified value, the Baume gravimeter 17 goes down, the metal detecting device 15 detects the metal cap 16, and the controller 18 controls the control valve 7 to stop the supply of the saline solution. Is signaled, and the supply of salt-dissolved water is stopped.

Furthermore, the detection of the Baume hydrometer 17 due to the drop of the water level in the saline solution measuring container 6 is ignored in consideration of the signal of the liquid level detection device 19, and at the same time this state is not normal, so the controller 18 controls the control valve 7 Is closed and the supply of salt-dissolved water is stopped.

(5) Effect of the Invention The invention of the present application is configured as described above, and since the production of the saline solution is automated and the measurement target can be the latest saline solution, the measurement accuracy is improved. Have.

[Brief description of drawings]

FIG. 1 is a front view of a conventional device, FIG. 2 is a front view of the device according to the present invention, FIG. 3 is a plan view of FIG. 2, and FIG. 4 is a detailed view of a saline solution concentration measuring container. In the figure, 3 is a salt dissolving tank, 6 is a salt water concentration measuring container, 7 is a control valve, 8 is a salt dissolving water supply device, 15 is a metal detection device, 16 is a metal cap, 17 is a Baume hydrometer, and 18
Is a controller, and 19 is a liquid level detection device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Sho 61-67827 (JP, U) JP 47-13090 (JP, B1) JP 62-35965 (JP, B2) JP 60- 1045 (JP, B2) Actual public Sho 56-27960 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A salt solution tank equipped with a salt solution supply device, and a saline solution concentration measuring container provided adjacent to it so as to receive an overflow solution from the tank and having a saline solution outlet opening at the bottom. And a saline solution concentration detecting device and a liquid level detecting device provided inside the container, and the saline dissolving water supply device is controlled by the saline solution concentration detecting device and the liquid level detecting device. And a salt dissolving device.