JPS6172099A - Agent for preventing degradation of liquid such as water-soluble metal working fluid, water, etc. - Google Patents

Abstract

PURPOSE:To provide a degradation preventing agent capable of keeping various liquids such as water-soluble metal working fluid, water, etc. from degradation for a long period, by carrying out the ion-exchange of a sterilizing metal and an adsorbent, and putting the resultant sterilizing agent into a vessel. CONSTITUTION:A sterilizing metal such as silver, copper, etc. is adsorbed to an adsorbent 1 such as zeolite, activated carbon, etc. by ion-exchange, and the obtained sterilizing agent 2 is put into a vessel 3 such as a cylindrical container, bag, etc. to obtain the objective degradation-preventing agent. The ion exchange is carried out by heating a properly diluted silver nitrate solution, and immersing and stirring powdery zeolite in the solution to effect the ion exchange between the Na in the zeolite with silver. USE:Effective to prevent the degradation of water-soluble metal working fluid for the cooling or lubrication of a grinding machine, NC-machine tool, etc., rolling oil for a rolling mill of ironworks, cooling water for cooling tower, water for pisciculture tank and goldfish basin, etc., and water of swimming pool, etc.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The anti-corrosion agent of the present invention is used in water-soluble working oil used for cooling and lubricating grinding machines, numerical control machines, etc., and rolling equipment in steel plants. This prevents spoilage of various liquids used in various fields, such as rolling oil used in cooling towers, cooling water used in cooling towers, water used in fish tanks, aquaculture tanks, goldfish tanks, etc., and pool water.

(Prior art) Among the liquids used in various fields, water-soluble machine oil used for cooling and lubricating machine tools, for example, is pumped up from tank A by pump P as shown in Figure 5, and is used for machine tools. It is sprayed onto the B blade and used for cooling, lubrication, cutting, washing away polishing powder, etc.

If water-soluble machine oil is used for a long period of time, the oil may become contaminated, microorganisms in the pond may rot and produce a bad odor, and the oil may become acidic due to a drop in pH, causing corrosion of machine tools and workpieces.
If the appearance of the oil changes (emulsion breakage, separation of oil and water, turbidity of the liquid, blackening, etc.), rust occurs, bacteria clumps, extracellular substances, cutting chips, grindstone powder, etc. cause damage to tank A or the pump. If the filter or separator of the P is clogged,
Pipes may become clogged due to slime molding.

As a result, its properties as an oil agent deteriorate and become unusable.
There is the hassle of having to replace the water-soluble working oil every short period of time (usually rotting begins around 14 days).

However, when replacing water-soluble machine oil, the machine must be stopped, flushed, and sterilized, so it takes time to start operating the machine after replacing it. There is also the problem that it costs a lot of money to replace the liquid, and furthermore, it costs money to dispose of the waste liquid.

Conventionally, the following measures have been taken to address these issues.

When diluting the stock solution, use sterilized tap water to prolong the period until it spoils, lower the dilution rate (increase the concentration of the stock solution), or use a commercially available preservative. Make it last longer.

A large-capacity liquid tank will be installed, and each machine in the factory will be connected to it via piping, and the progress of spoilage will be suppressed by centrally controlling and preventing liquid stagnation.

(Problem to be solved by the invention) The conventional methods have the following problems.

The method of using sterilized tap water to dilute the stock solution has an initial effect, but long-term effects cannot be expected, and it is uneconomical if used at a low dilution rate.

The method of using a commercially available preservative has the trouble of having to periodically replenish the preservative.

When using a liquid tank with a large v-1' volume, not only is a huge amount of equipment required, but the piping etc. become clogged over time, making it impossible to maintain sufficient effectiveness over a long period of time. Therefore, it is not generally used.

(Means for Solving the Problems) The object of the present invention is to ion-exchange a bactericidal metal with an adsorbent to obtain a bactericidal agent, and to elute metal ions from this bactericidal agent into a liquid, thereby producing a trace amount of a bactericidal liquid. The goal is to provide a stable supply of food and ensure that corruption is prevented over a long period of time.

As shown in FIG. 1, the antiseptic agent of the present invention is made by ion-exchanging a bactericidal metal with an adsorbent l to form a bactericidal agent 2, and storing this bactericidal agent 2 in a container body 3. be.

As the disinfectant 2, for example, sterilizing metals such as silver and steel are ion-exchanged with adsorbents such as zeolite and activated carbon.
Container 3 such as a cylindrical or other appropriately shaped container or bag
It is stored in.

Zeolite is used as the adsorbent l, silver is used as the bactericidal metal, and various methods can be considered for ion-exchanging the silver with the adsorbent l, for example, the following method may be used.

AgN0. diluted to an appropriate concentration. (Silver nitrate) solution is heated, and ZeO (zeolite) is immersed in it and stirred to exchange ions of sodium and silver in the zeolite.

In this case, it is preferable to use a zeolite that is spherical, for example, about 4 to 5 mm in diameter or about 1 to 2 mm in diameter, so that it does not easily swell and is difficult to powder.

(Examples of use) The anti-corrosion agent of the present invention is used in water-soluble working oil used in machine tools, rolling oil used in rolling equipment in steel plants, cooling water used in cooling towers, fish tanks, aquaculture tanks, and goldfish. It can be used to prevent spoilage of various liquids used in various fields, such as water used in tanks and pool water. As an example of its use, as shown in FIG. 2, the liquid 6 for preventing spoilage is a water-soluble working oil.

In the first J, 7 is a tank, 6 is water-soluble working oil, 9 is a pump for pumping up the water-soluble working oil, and 10 is a storage tank for storing the pumped water-soluble working oil 6. The anti-septic agent of the present invention is placed in this storage tank IO, and the tank 7 is in the second state.
When the water-soluble working oil 6 is pumped up from the pump 9 to the storage tank 10, the water-soluble T working oil 6 overflows the partition plate t3a, and the partition plate 13b is moved under the partition plate 13.
Overflow C. During this time, impurities such as polishing powder and chips mixed in the water-soluble working oil 6 settle into the storage tank 10.

The amount of water-soluble working oil 6a in the storage tank 10 is controlled by an oil amount controller 12.
, and is always set between the upper limit switch 14a and the lower limit switch 14b.

The water-soluble working oil 6a in the reservoir Mto from which impurities have been removed passes through the vessel body 3. In this case, the water-soluble working oil 6a passing through the vessel body 3 comes into contact with the disinfectant 2 therein, and the metal ions of the disinfectant 2 are eluted into the water-soluble working oil 6a in very small amounts in units of PPb.

The water-soluble working oil 5 from which metal ions have been eluted is dripped into the tank 7 from the outlet 20 of the container body 3.

(Other usage examples) The one shown in Figure 3 is used to prevent water from rotting in a fish tank. This is a stainless steel mesh filter 22 that uses a pump to pump up the water in the fish tank (not shown).
The sterilizing solution is then put into the container 3 containing the sterilizing agent, and the sterilizing agent is eluted into the liquid by passing through the container 3, and the sterilizing liquid with the sterilizing agent eluted is passed through the outlet 20 of the container 3. It is designed to be dripped into the fish tank.

In FIG. 3, 24 is a filter housing, 23 is a flow rate adjustment valve, and 25 is a pedestal.

When using the antiseptic agent of the present invention, the container 3 containing the disinfectant 2 should not be placed in a stagnant liquid, but should be placed in a flowing liquid. body 3
By passing water through the container body 3, the water not only passes between the sterilizers 2 in the container body 3, but also permeates through the adsorbent l containing metal ions, and the metal ions in the adsorbent 1 are removed. It is best to ensure sufficient elution.

(Effects of the Invention) Since the antiseptic agent of the present invention is used by ion-exchanging a bactericidal metal with the adsorbent 1, it has the following various effects.

(1) The antibacterial and bacteriostatic effects of metals not only sterilize bacteria in the liquid, but also inhibit the proliferation of various bacteria, thereby suppressing and preventing spoilage of the liquid.

(2) Compared to the case where metals with sterilizing power are used as they are without being ionized, the sterilization effect is maintained for a long time because the metal ions are stably eluted in minute amounts over a long period of time.

(3) Because the metal ions in disinfectant 2 remain effective for a long time,
There is no need to frequently replace the disinfectant 2, which facilitates maintenance.

(4) If zeolite or activated carbon is used as the adsorbent 1, it will be a combination of a metal with sterilizing ability and an inorganic adsorbent, so it will be far less toxic than when an organic sterilizing agent is used.

(5) The anticorrosion agent of the present invention can be installed and used offline in tanks, machine tools, swimming pools, etc., so it can be easily used without any modification to conventional equipment.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing an example of the anti-septic agent of the present invention, and FIGS. 2 and 3 are explanatory diagrams of how the anti-septic agent of the present invention is used. 1 is the adsorbent, 2 is the disinfectant, 3 is the container body,;
Title of the invention Water-soluble working oil, anti-corrosion agent for liquids such as water 3 Relationship with the case of the person making the amendment Patent applicant address Name Keiyo Co., Ltd. 4 Agent Address: 101 O3-866-3327
5 Date of amendment order Voluntary 6 Subject of amendment Full text of specification, once ω′1zFi
li-1 Hirozu Specification 1, Title of the invention Water-soluble construction oil, anti-corrosion agent for liquids such as water 2, Claims A sterilizing agent prepared by ion-exchanging a sterilizing metal with an adsorbent, Water-soluble construction oil, water, and other liquid anti-corrosion agents that are stored in the body. 3. Detailed Description of the Invention (Field of Industrial Application) The anti-corrosion agent of the present invention is used in water-soluble working oil used for cooling and lubricating grinding machines, numerical control machines, etc., and rolling equipment in steel plants. This prevents spoilage of various liquids used in various fields, such as rolling oil used in cooling towers, cooling water used in cooling towers, water used in fish tanks, aquaculture tanks, goldfish tanks, etc., and pool water. (Prior art) Among the liquids used in various fields, for example, water-soluble machine oil used for cooling and lubricating machine tools is pumped from tank A with pump P as shown in Figure 4. Content
It is as per the attached sheet. If water-soluble machine oil is used for a long period of time, the oil may become contaminated, microorganisms in the pond may rot and produce a bad odor, and the oil may become acidic due to a drop in pH, causing corrosion of machine tools and workpieces.
If the appearance of the oil changes (emulsion breakage, separation of oil and water, turbidity of the liquid, blackening, etc.), rust occurs, bacteria clumps, extracellular substances, cutting chips, grindstone powder, etc. cause damage to tank A or the pump. If the filter or separator of the P is clogged,
Pipes may become clogged due to slime molding. As a result, its properties as an oil agent deteriorate and become unusable.
There is the hassle of having to replace the water-soluble working oil every short period of time (usually rotting begins around 14 days). However, when replacing water-soluble machine oil, the machine must be stopped, flushed, and sterilized. There is also the problem that it costs a lot of money to change the oil, and furthermore, it costs money to dispose of waste liquid. Conventionally, the following measures have been taken to address these issues. When diluting the stock solution, use sterilized tap water to prolong the period until it spoils, lower the dilution rate (increase the concentration of the stock solution), or use a commercially available preservative. Make it last longer. A large-capacity liquid tank will be installed, and each machine in the factory will be connected to it via piping, and the progress of spoilage will be suppressed by centrally controlling and preventing liquid stagnation. (Problems to be Solved by the Invention) The conventional methods have the following problems. The method of using sterilized tap water to dilute the stock solution has an initial effect, but long-term effects cannot be expected, and it is uneconomical if used at a low dilution rate. The method of using a commercially available preservative has the trouble of having to periodically replenish the preservative. When using a large-capacity liquid tank, not only does it require a huge amount of equipment, but also the piping etc. become clogged over time, making it impossible to achieve sufficient effectiveness over a long period of time. Not utilized. (Means for Solving the Problems) The object of the present invention is to ion-exchange a bactericidal metal with an adsorbent to obtain a bactericidal agent, and to elute metal ions from this bactericidal agent into a liquid, thereby producing a trace amount of a bactericidal liquid. The goal is to provide a stable supply of food and ensure that corruption is prevented over a long period of time. As shown in FIG. 1, the antiseptic agent of the present invention is made by ion-exchanging a bactericidal metal with an adsorbent 1 to obtain a bactericidal agent 2, and storing this bactericidal agent 2 in a container body 3. be. As the bactericidal agent 2, for example, metals such as silver and copper having bactericidal properties are ion-exchanged with an adsorbent such as zeolite or activated carbon.
Container 3 such as a cylindrical or other appropriately shaped container or bag
It is stored in. Zeolite is used as the adsorbent l, silver is used as the bactericidal metal, and various methods can be considered for ion-exchanging the silver with the adsorbent l, for example, the following may be used. A silver nitrate solution diluted to an appropriate concentration is heated, and zeolite is immersed in the solution to cause ion exchange between sodium and silver in the zeolite. In this case, the zeolite may be, for example, a powder or a
It is preferable to use a spherical material with a size of about 5 mm that does not easily swell and is hard to powder. (Examples of use) The anti-corrosion agent of the present invention is water-soluble working oil used in machine tools, rolling oil used in rolling equipment at steel plants, cooling water used in cooling towers, fish tanks, aquaculture tanks, and goldfish tanks. It can be used to prevent spoilage of various liquids used in various fields, such as water used for industrial purposes, swimming pool water, etc. As an example of its use, as shown in FIG. 2, the liquid 6 for preventing spoilage is a water-soluble working oil. In FIG. 2, 7 is a tank, 6 is water-soluble working oil, 9 is a pump for pumping up the water-soluble working oil, and 10 is a storage tank for storing the pumped water-soluble working oil 6. The anti-corrosion agent of the present invention is placed in the storage tank 10. When the water-soluble working oil 6 is pumped from the tank 7 to the storage tank 10 by the pump 9 in this state, the water-soluble working oil 6 passes through the partition plate 13a. It overflows, underflows the partition plate 13b, and overflows the partition plate 13C. During this time, impurities such as polishing powder and chips mixed in the water-soluble working oil 6 settle into the storage tank 10. The amount of water-soluble working oil 6a in the storage tank 10 is controlled by an oil amount controller 12.
, and is always set between the upper limit switch 14a and the lower limit switch 14b. The water-soluble working oil 6a in the storage tank 10 from which impurities have been removed passes through the vessel body 3. In this case, the water-soluble working oil 6a passing through the vessel body 3 comes into contact with the disinfectant 2 therein, and a very small amount of metal ions of the disinfectant 2 in units of PPb are eluted into the water-soluble working oil 6a. The water-soluble working oil 5 from which metal ions have been eluted is dripped into the tank 7 from the outlet 20 of the vessel body 3. (Other usage examples) The one shown in Figure 3 is used to prevent water from rotting in a fish tank. This is a stainless steel mesh filter 22 that pumps up the water in the fish tank (not shown) using a pump.
The sterilizing solution is then put into the container 3 containing the sterilizing agent, and the sterilizing agent is eluted into the liquid by passing through the container 3, and the sterilizing liquid with the sterilizing agent eluted is passed through the outlet 20 of the container 3. It is designed to be dripped into the fish tank. 24 in Figure 3 is the filter housing, 23 is the flow jam
The valve 25 is a pedestal. When using the antiseptic agent of the present invention, the container 3 containing the disinfectant 2 should not be placed in a stagnant liquid, but should be placed in a flowing liquid, or the container 3 should be placed in a flowing liquid. body 3
The water not only passes between the sterilizers 2 in the container 3, but also passes through the adsorbent 1 containing metal ions, which releases trace amounts of hydrogen ions and silver ions. The feature is that they are exchanged one by one. (Effects of the Invention) Since the antiseptic agent of the present invention is used by ion-exchanging a bactericidal metal with the adsorbent 1 and sealing it in the container body 3, it has various effects as described below. (1) The antibacterial and bacteriostatic effects of metals not only sterilize bacteria in the liquid, but also inhibit the proliferation of various bacteria, thereby suppressing and preventing spoilage of the liquid. (2) Compared to the case where metals with sterilizing power are used as they are without being ionized, the sterilization effect is maintained for a long time because the metal ions are stably eluted in small amounts over a long period of time. (3) Because the metal ions in disinfectant 2 remain effective for a long time,
There is no need to frequently replace the disinfectant 2, which facilitates maintenance. (4) If zeolite, activated carbon, etc. are used as the adsorbent l, it will be a combination of a metal with sterilizing ability and an inorganic adsorbent, so it will be much less toxic than when using an organic sterilizing agent. (5) The anticorrosion agent of the present invention can be installed and used offline in tanks, machine tools, swimming pools, etc., so it can be easily used without any modification to conventional equipment. 4. Brief description of the drawings FIG. 1 is a longitudinal sectional view showing an example of the antiseptic agent of the present invention, FIGS. 2 and 3 are illustrations for explaining the use of the antiseptic agent of the present invention, and FIG.
The figure is an explanatory diagram showing the relationship between a conventional machine tool and a tank. l is adsorbent 2 is sterilizer 3 is container

Claims (1)

[Claims] A rot-preventing agent for liquids such as water-soluble working oil and water, characterized by containing a disinfectant made by ion-exchanging a germicidal metal with an adsorbent in a container.