JPH04131485U - Oil removal device - Google Patents

Abstract

(57) [Summary] [Purpose] When adsorbing and removing oil that floats to the liquid surface in a separation tank using an adsorbent, constantly update the adsorption capacity of the adsorbent during operation to enable long-term effective operation. . [Structure] A cross-flow type separation tank 1 is divided into a plurality of sections in the flow direction, the lower part of each section is communicated, and an oil adsorption sheet 10 is movably arranged so as to sequentially contact the vicinity of the liquid surface in each section. .

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a device for adsorbing and removing oil in liquid.

0002

[Conventional technology]

Conventionally, there are various types of devices that remove oil from liquids, but in particular, they remove fine oil from liquids. As a device that makes it possible to remove droplets, we use an oil adsorbent that is highly lipophilic and oil resistant. The equipment used is often used. Most of the oil adsorbents used in such equipment are packed materials, and are not uniformly used. Filtration contact type that passes oil and water through the same filling material, parallel filter that passes oil and water between the gaps between the filling materials There is a flow contact type, the former has excellent ability to remove fine oil droplets, and the latter has excellent ability to remove clogging. It is characterized by its durability.

0003

[Problem that the idea aims to solve]

However, in conventional equipment filled with oil adsorbent, regeneration of the filler or During replacement, the operation must be stopped, the filling material taken out, and the filling material reset. was cumbersome and required a lot of time. The present invention solves these problems with conventional equipment and constantly uses oil adsorbent during operation. Oil removal equipment that can renew adsorption capacity and enable long-term effective operation The purpose is to provide the following.

0004

[Means to solve the problem]

This invention divides a cross-flow separation tank into multiple sections in the flow direction and communicates the lower part of each section. The oil-absorbing sheets are arranged in a movable manner so that they sequentially come into contact with the liquid surface in each compartment. The oil removal device is characterized in that it is equipped with It is equipped with a height adjustment mechanism that makes it possible to change the contact depth of the A material of the same shape and made of incineration material is placed at the winding end of the sheet and at the unwinding start end. It is also characterized by the provision of a roll for wrapping the oil-absorbing sheet.

[0005]

[Effect]

The oil-containing liquid that flows into the separation tank from one end flows horizontally through the tank, and the oil content rises to the liquid surface. comes to the surface. The surfaced oil travels by sequentially contacting the liquid surface area in each compartment. It is adsorbed and removed by an oil absorption sheet. In this case, the running of the oil absorption sheet is It is also possible to move from the stream side to the downstream side, but the floated oil will flow more in the upstream area than in the downstream area. If there are more compartments and the oil absorption sheet is run from the downstream side to the upstream side, , while the adsorption capacity is large, it effectively adsorbs the small amount of oil on the downstream side, and then the upstream side A rational adsorption removal of oil is carried out by adsorbing most of the oil. Also, Height adjustment that allows you to adjust the depth of contact with the liquid surface when the oil absorption sheet travels. By installing a regulating mechanism, the flow rate of the liquid flowing into the separation tank increases and decreases depending on fluctuations in the flow rate. It is able to follow the liquid level and has effective oil removal ability even when the flow rate fluctuates. can be retained. Furthermore, there are incineration-capable parts at the winding end and the feeding start end of the suction sheet. If you have two rolls for wrapping the suction sheet with the same shape, you can remove the used suction sheet. The wound roll can be incinerated as is, and the adsorption sheet can also be sent out. This is convenient because the rolled roll can be used for winding.

[0006]

【Example】

One embodiment of the present invention will be described with reference to the drawings. In FIG. 1, 1 is at one end. The raw water inflow pipe 2 is a cross-flow separation tank with an outflow pipe 3 connected to the other end. At the opening of the baffle plate 4, the upper end is immersed below the liquid level and the lower end is extended to the bottom of the tank. Therefore, an inflow chamber 5 is formed, and on the downstream side, the upper end is above the liquid level and the lower end is separated from the tank bottom. The partition wall 6 divides the chamber into a plurality of chambers in the flow direction, including a first separation chamber 7 and a second separation chamber 8. The opening of the outflow pipe 3 serves as an outflow chamber 9. In addition, the upper part of separation tank 1 In this step, the take-up roll 11 and an oil-absorbing material such as a highly hydrophobic and lipophilic nonwoven fabric are used. A delivery roll 12 is equipped with a suction sheet 10 wrapped around the suction sheet 10 to The sheet 10 is passed around a group of rollers 13 and extended to a take-up roll 11, By winding up the winding roll 11, the adsorption sheet 10 is placed on the downstream side of the separation tank 1. The liquid level in the second separation chamber 8 is brought into contact with the liquid level in the first separation chamber 7 on the upstream side. It is installed so that it can run. The suction sheet 10 is arranged as shown in the figure by the arrangement of rollers 13. As shown in the example, the floating part of the oil on the liquid surface is brought into surface contact with the flow and the countercurrent. Pass through the liquid surface from above, submerge into the liquid, and rise above the liquid surface again. It is also possible to arrange the rollers 13 in the same manner. In the figure, 14 is a frame that holds a group of rollers 13, and 15 is oil floating on the liquid surface. Indicates the minute.

[0007] In addition, the liquid level in the tank changes up and down as the flow rate into the separation tank 1 fluctuates. The frame 14 holding the group of rollers 13 is rolled up so as to follow the liquid level. It can be connected to an inch (not shown), etc. to raise and lower it, or as shown in the example, it can be used to A float 16 is arranged in the chamber 9, and the float 16 and the frame 14 are connected to a transmission pulley 17. They are connected by a transmission chain 18 that is guided by, and automatically follow changes in the liquid level in the outflow chamber 9. The frame 14 is raised and lowered by the float 16 and brought into contact with the liquid surface of the adsorption sheet 10. It is preferable to adjust the depth.

[0008] Furthermore, the take-up roll 11 and delivery roll 12 of the adsorption sheet 10 can be incinerated. It is also preferable to use a functional material and to have the same shape. For example, the take-up roll 11 is As shown in FIG. 2, a driven gear 22 is fixed at one end of a shaft 21, and a fixed frame 23 The fixed frame 2 is set between the movable frames 25 which are pressed by the pressing springs 24, and A drive gear 27 rotated by a handle 26 provided at The suction sheet 10 is then rotated and the suction sheet 10 is wound up. 28 is a stopper for the drive gear 27; 9 indicates a cover. On the other hand, as shown in FIG. A new suction sheet 10 having the same shape as the roll 11 is wound, and the fixed frame 3 3 and a movable frame 35 pressed by a pressing spring 34, and a cover 39 covered. 38 indicates a stopper of the driven gear 22. Then, pull out a new suction sheet 10 from the feed roll 12, and 3, wrap it around the take-up roll 11, and turn the handle 26 by hand. The suction sheet 10 is wound up by moving the handle 26 into a motor (not shown). It can also be connected to a motor for automatic winding. Adsorption of delivery roll 12 When the sheet 10 is completely wound up on the take-up roll 11, the take-up roll 1 1, and then set the delivery roll 12 that sent out the suction sheet 10. This is used as the take-up roll 11. In addition, the adsorption sheet 10 is wound up. It would be convenient if the removed take-up roll 11 could be incinerated; It is recommended that the roll be made of incinerated material. In addition, as shown in FIGS. 4 and 5, there is a surface of the take-up roll 11 along the axial direction. A plurality of slits 41 are provided, and as shown in FIGS. 6 and 7, the suction sheet 10 is The end is wrapped around the core material 42 and fixed by adhesive or welding, and this end is slit. If it is inserted into 41, winding becomes easy. In the illustrated example, the adsorption sheet 10 is made to run countercurrently to the flow of the liquid. However, it can also be run downstream.

[0009]

[Effect of the idea]

As mentioned above, according to the present invention, the oil removal effect does not change during operation. This makes it possible to operate continuously for a long period of time, and also makes it easier to dispose of used adsorption sheets. It is something that can be done.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

FIG. 2 is a cut explanatory diagram of a take-up roll section.

FIG. 3 is a cut-away explanatory diagram of a delivery roll section.

FIG. 4 is a side view of the take-up roll.

FIG. 5 is a view taken along line A-A in FIG. 4;

FIG. 6 is a front view of the end of the suction sheet.

7 is a sectional view taken along line BB in FIG. 6. FIG.

[Explanation of symbols]

1 Separation tank 2 Raw water inflow pipe 3 Outflow pipe 4 Inflow baffle plate 5 Inflow chamber 6 Bulkhead 7 First separation room 8 Second separation room 9 Outflow chamber 10 Adsorption sheet 11 Take-up roll 12 Delivery roll 13 Laura 14 frames 15 Oil content 16 float 17 Transmission pulley 18 Transmission chain 21 axes 22 Driven gear 23 Fixed frame 24 If you press it 25 Movable frame 26 handle 27 Drive gear 28 Stopper 29 Cover 33 Fixed frame 34 If you press it 35 Movable frame 38 Stopper 39 cover 41 slit 42 Core material

Claims (3)

[Scope of utility model registration request] [Claim 1] A cross-flow type separation tank is divided into a plurality of sections in the flow direction, the lower part of each section is communicated with each other, and an oil adsorption sheet is movably arranged so as to sequentially contact the vicinity of the liquid level in each section. An oil removal device featuring: 2. The oil removal device according to claim 1, further comprising a height adjustment mechanism that makes it possible to change the depth of contact of the oil absorption sheet with the liquid surface. 3. The oil removal device according to claim 1, wherein rolls for winding the oil adsorption sheet made of incineration material and having the same shape are provided at the winding end and the feeding start end of the oil adsorption sheet, respectively.