JPH06280072A - Device for degreasing-cleaning continuous material - Google Patents

Abstract

PURPOSE:To degrease and clean a continuous material without lowering the cleaning capacity with a simple device by mechanically removing the stuck oil component and the stuck cleaner before and after executing degreasing- cleaning with the cleaner while shifting the continuous material to be degreased and cleaned. CONSTITUTION:The continuous material 1 to be degreased and cleaned is continuously shifted through a uncoiling roll 6 and a coiling roll 7 while applying the tension. At first, in a pre-treating part 4, the oil content stuck to the front and the back surface of the continuous material 1 is mechanically removed through wipers 40, 41 and backup rolls 42, 43. Successively, the continuous material 1 is passed through a degreasing-cleaning part 2. Here, the continuous material 1 is dipped into the cleaner 22 with dipping rolls 20, 21, the stuck oil component is finally separated and cleaned. The continuous material 1 after cleaning is introduced into the suceeding treating part 5 and the stuck cleaner 22 is mechanically removed with wipers 50, 51, backup rolls 42, 43 and a nozzle 54 for injecting the high pressure air. Thereafter, the continuous material 1 is leading out and passed through a drying part 3 and by blowing the drying air, etc., from a nozzle 30, the drying is executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous body degreasing / cleaning apparatus for degreasing and cleaning a continuous body having oil on its surface.

[0002]

2. Description of the Related Art For example, various continuous bodies such as plate material, wire material and strip material made of metal material are manufactured by using various processing means such as rolling and wire drawing. In these processing steps, various oil components such as rolling oil and lubricating oil are used due to their manufacturing properties, and thus various obtained continuums can be obtained in a state in which the oil components are attached.

When various kinds of continuous bodies to which such oil components are attached are subjected to the next step of surface treatment such as painting, welding treatment, heat treatment such as annealing, and other treatments, product characteristics such as quality and handling Due to surface restrictions, most of the oil was used in a degreased state in which oil adhering to various continuums was degreased.

Therefore, conventionally, as a means for degreasing and cleaning the oil adhering to the continuum, CFCs for cleaning or 1,1,1-trichloroethane which are excellent in cleaning ability, drying property and harmlessness, etc. The immersion cleaning method in which the continuous body to be degreased is immersed in these liquids and dried by using the above-mentioned cleaning agent has been generally used.

[0005]

In recent years, due to the growing concern about the global environment, the use of ozone-depleting substances such as fluorocarbons for cleaning and 1,1,1-trichloroethane, which have been conventionally used for degreasing cleaning, has been strengthened. Therefore, in the future, degreasing cleaning using these ozone depleting substances will be abolished. Moreover, it is expected that it will be difficult to increase or obtain the purchase price due to these production volume restrictions.

The following methods are studied as alternative means for degreasing cleaning that does not utilize ozone-depleting substances. First, it may be possible to go back to trichlene, which was generally used as a degreasing detergent before. However, the organic solvent such as trichlene is a substance harmful to the human body, and its handling is strictly regulated legally.

As another method, use of an aqueous or non-aqueous alternative cleaning agent newly developed as a CFC alternative cleaning agent in recent years can be considered. However, these CFC substitute cleaning agents have their respective drawbacks in terms of cleaning ability, although they are expected to further improve the performance of CFCs.

[0008] For example, with respect to the water-based cleaning agent, there are problems such as the provision of peripheral equipment such as water treatment by rinsing and the treatment of industrial waste generated after use. On the other hand, non-aqueous detergents have problems in the Fire Service Act due to characteristics such as flash point due to their physical properties.

The problems in the degreasing method using the degreasing detergent described above can be summarized as follows. (1) First, when using ozone-depleting substances such as CFCs and trichloroethane as degreasing detergents, it is planned to tighten usage regulations in the future, and degreasing and washing using these ozone-depleting substances will not be possible in the future. It is in the direction of becoming.

(2) Degreasing detergents that have been conventionally used or newly developed in recent years may be restricted by legal regulations such as the regulations for preventing organic solvent poisoning or the regulations for preventing damage to specific chemical substances. .

(3) Peripheral equipment such as water treatment for rinsing these degreasing detergents is required, and the degreasing and washing apparatus becomes complicated. (4) It is necessary to handle industrial waste generated after using these degreasing detergents.

In contrast to the above-mentioned problems in the degreasing method using a degreasing detergent, the present invention is simpler than the conventional degreasing apparatus and does not reduce the cleaning ability and degreases the continuous body. It is an object of the present invention to provide a degreasing device for a continuous body that can be used.

[0013]

SUMMARY OF THE INVENTION A continuous body degreasing and cleaning apparatus according to a first aspect of the present invention comprises a means for transferring a degreasing and cleaning continuous body and a degreasing and cleaning method for cleaning the degreasing continuous body with a cleaning agent. A cleaning unit and a drying unit for drying the cleaning agent adhering to the surface of the continuous body to be degreased are characterized by being provided.

The second decontamination / cleaning apparatus for a continuous body according to the present invention comprises means for transferring the decontamination / cleaning continuum, and a pretreatment unit for mechanically removing oil adhering to the surface of the decontamination / cleaning continuum. And a degreasing and cleaning unit that degreases and cleans the degreased continuous body from which the oil has been mechanically removed, and a post-treatment unit that mechanically removes the cleaning agent adhering to the surface of the degreased and washed continuous body. It is characterized in that it has a drying section for drying the degreasing-cleaned continuous body from which the cleaning agent has been mechanically removed.

[0015]

With the degreasing and cleaning apparatus of the present invention, the degreasing and cleaning continuum having oil adhered to the surface is first degreased and cleaned in the degreasing and cleaning section to remove the oil adhered to the surface. Then, at that time, since the cleaning agent is attached to the surface, the surface of the continuum is degreased and cleaned by drying the cleaning agent in the drying section, so that the continuous cleaning can be continuously performed. It will be possible.

Further, in the present invention, as a pretreatment of the degreasing / cleaning section, a pretreatment section for mechanically removing the oil content adhering to the surface of the degreasing / cleaning continuous body is provided, so that the oil content entering the degreasing / cleaning section together with the continuum is removed. The post-treatment of the degreasing and cleaning section, that is, the pre-treatment of the drying means, by providing the post-treatment section for mechanically removing the cleaning agent adhering to the surface of the degreasing and cleaning continuous body, the drying section It is possible to reduce the amount of detergent that enters with the continuum. As described above, in the present invention, the oil content or the cleaning agent for the post-treatment in the degreasing cleaning device is reduced as much as possible.

First, the means for transferring the continuous body to be degreased according to the present invention is not limited in its structure as long as it can introduce and discharge the continuous body to be degreased into the degreasing and cleaning section. However, for example, the continuous body is drawn out from a delivery roll in which the continuous body to be degreased is wound around the front part of the degreasing and cleaning section, and a winding roll for winding the oil-removed continuous body is provided at the rear part of the drying section. It is possible to adopt such things.

The degreasing / cleaning unit for degreasing and cleaning the continuous body to be degreased may be, for example, to continuously immerse the continuous body to be degreased in the cleaning agent and attach it to the surface with the cleaning agent. Degreasing and cleaning, which separates and dissolves the oil content, can be considered.

Here, the cleaning agent is preferably a non-aqueous cleaning agent. This is because rinsing after degreasing and cleaning is not necessary, water is not necessary, and the amount of the cleaning agent itself can be reduced by using the regenerating apparatus.

After the degreasing cleaning, the cleaning agent adheres to the surface of the degreasing-cleaned continuous body. As a drying unit for drying the attached cleaning agent, a means for scattering and drying the cleaning agent by blowing gas or a means for drying by heating can be considered.

Further, the pretreatment part for mechanically removing oil adhering to the surface of the continuous body to be degreased as a pretreatment of the degreasing and cleaning part is made of, for example, resin in the width direction of the continuous body to be degreased to be cleaned. By adopting a configuration in which the continuous body to be degreased and cleaned is sandwiched between the wiper and the backup roll, or a pad or the like, it is possible to remove oil as much as possible by moving the continuous body to be degreased and cleaned.

Further, the post-treatment of the degreasing / cleaning unit, that is, the post-treatment unit for mechanically removing the cleaning agent adhering to the surface of the continuous body to be degreased as a pre-treatment for the drying means, has the same structure as the oil removing means. It is possible to drain the cleaning agent as much as possible by moving the continuous body to be degreased.

As described above, the continuous body to be degreased, which is the object of the present invention, is used in a degreased state obtained by degreasing the oil adhering in the subsequent process or the product, such as various continuous bodies such as plate material, wire material and strip material made of metal material. It is a continuous body.

[0024]

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic sectional view showing an embodiment of the degreasing and cleaning apparatus for a continuous body of the present invention. In the drawings, 1 is a continuous body to be degreased and washed, 2 is a degreasing and washing section, 3 is a drying section, 4 is a pretreatment section, and 5 is a post-treatment section. In the present embodiment, the continuous body to be degreased 1 is used as a means for transferring the continuous body to be degreased 1.
A delivery roll 6 for passing through the pre-treatment section 4, the degreasing and washing section 2, the post-treatment section 5 and the drying section 3 and a take-up roll 7 for winding the degreased continuous body 1 to be degreased. Have

The degreasing / cleaning section 2 includes a continuous body 1 to be degreased and cleaned, for example, a hydrocarbon-based cleaning agent, inside the dip tank 28.
For example, a dipping roll 2 for dipping in a non-aqueous cleaning agent 22 such as "Techno Care" (trade name of Toshiba Corporation)
It has 0 and 21.

The drying unit 3 has a nozzle 30 for blowing a gas such as air blown or dried air to the continuous body 1 to be degreased and cleaned. The pretreatment unit 4 sandwiches the continuous body 1 to be degreased and backs up the wipers 40 and 41 configured in the width direction of the continuous body to be degreased with resin or the like in order to mechanically remove oil adhering to the surface. Roll 4
It has 2 and 43, and is surrounded by a case 44 to prevent oil from scattering to the outside.

The post-treatment section 5 sandwiches the continuous body 1 to be degreased and wipes the wiper 50 formed of resin or the like in the width direction of the continuous body to be degreased in order to mechanically remove the cleaning agent adhering to the surface. , 51 and backup rolls 52, 5
Have three. Then, after the wipers 50, 51 and the backup rolls 52, 53, there is a nozzle 54 for blowing a gas such as air at high pressure to finally remove the cleaning liquid, and the cleaning agent does not scatter to the outside. It is surrounded by a case 55.

In the degreasing and cleaning apparatus of the present invention, the immersion tank 2
The cross-sectional shape such as 8 is appropriately selected depending on the cross-sectional shape of the continuous body to be degreased 1 to be degreased. The shape is rectangular.

Degreasing of a continuous body to be degreased and cleaned by using the degreasing and cleaning apparatus for a continuous body of the present invention having the above-described structure will be described. In FIG. 1, the continuous body to be degreased and cleaned 1 is a rolled material made of, for example, a permalloy material, and rolling oil is used in the rolling step which is the previous step, so rolling oil adheres to the surface of the continuous body to be degreased. .

The continuous body 1 to be degreased and washed is wound around the delivery roll 6 in the previous step, is led out from this delivery roll 6, and is subjected to the pretreatment section 4, the degreasing and washing section 2, the posttreatment section 5 and the drying section 3. And is wound around the take-up roll 7.

Here, tension is applied to the degreasing and cleaning continuous body 1 by the individual rolls 6 and 7. In the present embodiment, the delivery roll 6 and the winding roll 7 are used as the means for transferring the continuous body to be degreased 1, but the structure is not limited to this as long as the continuous body can be transferred.

The continuous body to be degreased and cleaned 1 delivered from the delivery roll 6 is first introduced into the pretreatment section 4, and the wiper 40 made of a resin such as a rubber tube arranged in the width direction of the continuous body to be degreased and cleaned 1 is provided. And backup roll 4
The continuous body 1 to be degreased is sandwiched by 2 and the oil adhering to one surface (the upper surface in this embodiment) is mechanically removed. Next, in order to remove the oil adhering to the other surface, the wiper 41 and the backup roll 43 sandwich and pass. At this time, the continuous body 1 to be degreased may have a warp in the width direction, and the wiper 4
In order to maintain good contact between 0 and 41, it is preferable that the continuous body to be degreased and cleaned 1 be maintained with the backup rolls 42 and 43 having a slight winding angle.

The pretreatment section 4 makes it possible to remove the oil component adhering to the surface of the degreasing and cleaning continuous body 1 as much as possible, and reduce the contamination of the cleaning agent 22 in the degreasing and cleaning section 2.

Next, the degreasing and cleaning continuous body 1 from which the oil adhering to the surface is removed is introduced into the degreasing and cleaning section 28.
Then, the dipping rolls 20 and 21 immerse the cleaning agent 22 in the cleaning agent 22, and the cleaning liquid 22 finally separates and cleans the oil component attached to the surface.

Here, the cleaning agent 22 is circulated by the pump 8, and at this time, the liquid temperature is controlled by the heat exchanger 9 connected to the water heater 10 and the water cooler 11. Then, the cleaning agent 22 circulated and the liquid temperature of which is controlled is returned to the dipping tank 28 so as to flow in a direction opposite to the traveling direction of the continuous body to be degreased to be cleaned 1, whereby the cleaning effect can be promoted. .

The cleaning agent 22 contaminated with oil is regenerated by the distillation regenerator 12, and the regenerated cleaning agent 22 is used.
Is returned from the nozzle 27 to the inside of the dipping tank 28, and is flowed in a shower shape on the degreased and cleaned continuous body 1 after dipping.

The liquid temperature of the cleaning agent 22 is monitored by a temperature sensor (not shown) installed in the dipping tank 28, and is appropriately controlled by the temperature of the continuous body 1 to be degreased and the external environment. In addition, a cooling body 25 for cooling and liquefying the cleaning agent 22 evaporated in the immersion tank 28 is provided in the cooling tank 2 in the vicinity of the introduction section and the extraction section of the continuous body 1 to be degreased to be cleaned inside the immersion tank 28.
It is installed on the circumference of 8. This cooling body 25 is a cooler 1
1 and is cooled by circulating a cooling medium. Then, the liquefied cleaning agent 22 is collected by the cleaning agent receiving section 26. Here, the cooling body 25
Is preferably installed below the inlet and outlet of the continuous body 1 to be degreased and cleaned so that the vapor of the cleaning agent 22 is not easily discharged to the outside.

Furthermore, in order to apply physical vibration and flow to the cleaning agent 22 to promote the cleaning effect, various means such as circulating the cleaning solution 22, using an ultrasonic oscillator, and providing a stirring blade on the dipping roll are adopted. You may.

Further, the continuous body 1 to be degreased and washed in the dipping layer 28
A pad 2 made of felt for the introduction part and the derivation part of
3 and 24 are provided to prevent the cleaning agent 22 in the form of steam from being discharged to the outside.

Next, the degreasing cleaning continuum 1 that has passed through the degreasing and cleaning section 2 and has been degreased and cleaned passes through the post-processing section 5 to remove the cleaning liquid adhering to the surface. Here, first, like the pretreatment unit 4, the wiper 50 and the backup roll 52 made of a resin such as a rubber tube configured in the width direction of the continuous body to be degreased 1 sandwich the continuous body to be degreased 1 and one of The cleaning agent attached to the surface (upper surface in this embodiment) is mechanically removed. Next, in order to remove the cleaning agent adhering to the other surface, the cleaning agent is sandwiched between the wiper 51 and the backup roll 53 and passes through. Also in this case, in order to maintain good contact between the degreasing and cleaning continuous body 1 and the wipers 50 and 51, the degreasing and cleaning continuous body 1 is maintained with the backup rolls 52 and 53 having a slight winding angle. Is preferred.

Then, a gas such as air is blown at high pressure by the nozzle 54 in order to finally remove the cleaning liquid adhering to the degreasing and cleaning continuous body 1. In this case, it is preferable that the gas of the nozzle 54 be blown to the entire surface of the continuous body 1 to be degreased to be cleaned in the width direction.

In the post-processing section 5, the wiper 50,
It is also possible to adopt a configuration in which the cleaning agent adhering to the surface is removed only by the nozzle 54 without providing the 51 and the backup rolls 52 and 53.

Next, the degreasing and cleaning continuous body 1 from which the cleaning agent has been removed is dried in the drying section 3 by blowing a gas such as air blown or dried air from the nozzle 30. In this case, it is preferable that the gas of the nozzle 30 is blown to the entire surface of the continuous body 1 to be degreased to be cleaned in the width direction.

As described above, the continuous degreasing and cleaning, which is taken out from the delivery roll 6, passes through the pretreatment unit 4, the degreasing cleaning unit 2, the posttreatment unit 5 and the drying unit 3 and is wound around the winding roll 7. The body 1 is used in a degreased state in which oil adhered in a subsequent process or product is degreased.

In general, since most non-aqueous cleaning agents have a low flash point, a degreasing cleaning section temperature sensor, a gas concentration detector, a flame detector, or the like is installed, and an alarm or CO ₂ gas is injected to extinguish the fire. It is preferable to install a device or the like.

In the present embodiment, the dipping bath in the degreasing and cleaning section was one, but in order to improve the washing effect, a degreasing and washing section having a plurality of dipping tanks may be used, and the washing liquid A steam cleaning tank may be provided next to the immersion tank in order to positively promote the drying. When the steam cleaning tank is used, the cleaning agent adhering to the immersion tank is washed away by dew condensation of the steam cleaning agent on the surface of the degreasing and cleaning continuum while passing through the steam.

[0047]

According to the present invention, it is possible to provide a degreasing and cleaning apparatus for a continuous body, which is simpler than the conventional degreasing apparatus, and which does not lower the cleaning ability and degreases the continuous body to be degreased and cleaned.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of a degreasing and cleaning apparatus for a continuous body of the present invention.

[Explanation of symbols]

 1 Continuation to be degreased and washed 2 Degreasing and washing section 3 Drying section 4 Pre-treatment section 5 Post-treatment section 6 Delivery roll 7 Take-up roll

Claims (2)

[Claims] 1. A means for transferring a continuum to be degreased and cleaned, a degreasing and cleaning unit for degreasing and cleaning the continuum to be degreased, and a drying unit for drying the continuum to be degreased and cleaned which has been drained. An apparatus for degreasing and cleaning a continuous body, comprising: 2. A means for transferring a continuum to be degreased to be cleaned, a pretreatment section for mechanically removing oil adhering to the surface of the continuum to be degreased to be cleaned, and a continuum to be degreased for mechanically removing oil. A degreasing cleaning section for degreasing and cleaning with a cleaning agent, a post-treatment section for mechanically removing the cleaning agent adhering to the surface of the continuous cleaning body for degreasing, and a continuous cleaning body for degreasing with the cleaning agent mechanically removed. An apparatus for degreasing and cleaning a continuous body, comprising: a drying unit for drying.