JP2010005571A - Oil separator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil separator can certainly separate the oil. <P>SOLUTION: The oil separator is provided with a separation tank 2 and a water feeding port 13, i.e., a water feeding part provided on the separation tank 2 and fed with water to be treated containing the oil and a water discharge port 14. Since a folding/returning flow passage 35 reaching from the other side opening part 33 to the lower opening 27 of a second partition plate 22 while passing through a space between lateral partition plates 31, 32 of upper and lower stages, one side opening part 34 and the lower side of the lateral partition plate 32 of lower stage is provided, water to be treated flowing from the water feeding port 13 to the water discharge port 14 passes through the lower opening 27 of the second vertical partition plate 22 in such a state that the contained oil is floated up and the oil is separated. Especially, the folding/returning flow passage 35 provided at a water feeding part side, i.e., the upstream of the lower opening 27 in the upper and lower stages makes a structure that the oil hardly passes through the lower opening 27, and the oil can be efficiently separated. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an oil separation device that separates oil flowing into a river or the like.

  When an oil spill accident occurs in ordinary households or factories, there is a risk of spilling to a river or groundwater through a gutter. In particular, the use of stoves and fan heaters increases during the winter period, and as a result, accidents that flow from household kerosene tanks to rivers occur, and there is concern about adverse effects on drinking water.

  The current method for collecting oil spilled from the river is to lay an oil fence over the river, prevent diffusion and spilling downstream, put an adsorption mat into the floating oil that has started gathering, wait for the oil to adsorb, and absorb After confirming the situation and the recovery status, the suction mat is recovered, and the recovered suction mat is treated as industrial waste. There are problems such as the need to secure.

In view of the above problems, an oil component mixture separation device has been proposed. A first treatment tank into which water to be treated containing a mixture of oil components is introduced, and an upper flow path from the upper edge of the first treatment tank through the overflow channel. A second treatment tank into which treated water flows into the upper end on one end side, and a third treatment tank into which treated water flows into the lower end on one end side through the latent flow path from the bottom on the other end side of the second treatment tank, The overflow channel has a bowl-like bottom surface, and the second treatment tank and the third treatment tank each have a latent weir arranged at a central portion in a direction perpendicular to the flow direction of the water to be treated and whose upper edge is lower than the water surface. The third treatment tank is provided with a drain pipe that is open to the inside and outside on the other end side, and an inlet of the drain pipe is opened at the bottom of the third treatment tank, and an outlet is provided in the third treatment tank. In which the height of the outlet is higher than that of the overflow channel (for example, Patent Document 1 and Patent Document 2), and the like.
JP 2001-129546 A JP-A-3-60791

  In the oil mixture mixture separating apparatus, in the second treatment tank, the portion of water to be treated that flows from the overflow channel that does not contain oil or the like, or that has a low specific content of oil or the like and that has a large specific gravity first falls. The portion that is stored before the first latent weir and overflows from the first latent weir flows downstream. Furthermore, the high specific gravity portion that has overcome the first latent weir flows into the bottom portion on the one end side of the third treatment tank through the latent flow path below the first partition. Since it flows over the second latent weir in the third treatment tank, the whole becomes an upward flow in front of it, and when it gets over the second latent weir, the high specific gravity portion falls, but the emulsified oil content is reduced. The low specific gravity portion to be contained is delayed in descending, the oil particle density is increased, the bonding between the particles is promoted, the oil is left in a layered state as a supernatant, and the oil is separated.

  As described above, even in a device that separates an oil component by specific gravity, there is a possibility that a part of the oil component passes through the infiltration path in the water to be treated accompanied by a flow, and a more efficient oil separation device is desired.

  In addition, the separation efficiency depends on the mixing state of oil and water. When the water to be treated is pumped to the separation tank by a pump or the like, the water to be treated is stirred with the oil by the pump blade, and the subsequent separation is difficult. Therefore, there is a problem that the separation efficiency is lowered.

  Then, this invention aims at providing the oil separation apparatus which can isolate | separate oil reliably in the oil separation apparatus using the difference in specific gravity, and supplies the to-be-processed water in the state which is easy to isolate | separate. It is an object of the present invention to provide an oil separation device that can perform the above-described operation.

  The invention of claim 1 includes a separation tank, a water supply part that is provided in the separation tank and feeds water to be treated containing oil, a supply means that feeds the water to be treated containing oil to the water supply part, and the separation tank. In the oil separation device provided with a drainage unit for draining the treated water from which oil has been separated, the supply means comprises a tube pump.

  The invention according to claim 2 includes a main vertical partition plate having a lower opening through which the water to be treated passes and an intermediate vertical partition plate through which the water to be treated passes.

  According to a third aspect of the present invention, a lateral flow path in which the water to be treated flows in a lateral direction is provided at one lower part of the main vertical partition plate, and a downstream side of the lateral flow path communicates with the lower opening.

  According to a fourth aspect of the present invention, the lateral flow path is provided in multiple upper and lower stages.

  According to a fifth aspect of the present invention, a one-side vertical partition plate is provided on one side of the main vertical partition plate, and the main vertical partition plate side is low between the one-side vertical partition plate and the upper portion of the main vertical partition plate. Are connected by an oblique plate, and an oil discharge port is provided above the one side vertical partition plate at a lower portion of the connection portion of the oblique plate.

  According to the configuration of the first aspect, since the water to be treated can be pumped without stirring the water to be treated, emulsification of the water to be treated containing oil can be suppressed and supplied to the water supply unit. The oil can be easily separated from the treated water.

  Moreover, according to the structure of Claim 2, the oil of light specific gravity floats and is separated, and the to-be-processed water from which the oil was separated passes through the lower opening and passes through the upper part of the intermediate vertical partition plate.

  Moreover, according to the structure of Claim 3, it becomes a structure where oil cannot pass easily to a lower opening by the horizontal path provided in the water supply part side upstream of a lower opening, and can isolate | separate oil efficiently.

  Moreover, according to the structure of Claim 4, passage of oil can be prevented by the horizontal passage provided in the upper and lower multistage.

  Moreover, according to the structure of Claim 5, the upper part between a main vertical partition plate and one side vertical partition plate becomes a shape which reduced toward the upper direction with the diagonal plate, These main vertical partition plates and one side partition plate When the water level between the two is raised, oil floats and collects at the upper part and is discharged to the outside from the upper oil outlet.

  Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all the configurations described below are not necessarily essential requirements of the present invention. In each embodiment, an unprecedented oil separator is obtained by adopting a new oil separator different from the conventional one, and the oil separator is described.

  Embodiment 1 of the present invention will be described below with reference to FIGS. As shown in FIG. 2, the oil separation device 1 includes a separation tank 2, a floating oil recovery device 3, and water containing oil recovered by the floating oil recovery device 3 (hereinafter referred to as treated water). 2 and a return means 5 for returning water obtained by separating oil from the water to be treated. As shown in FIG. 2, the oil separation device 1 is disposed on a common mount 7 and is mounted on a self-propelled vehicle 6.

  The separation tank 2 includes a main body 11 having a substantially bottomed box shape, and a bottom plate portion 12 provided at the bottom of the main body 11. The separation tank 2 is provided with a water supply port 13 serving as a water supply unit on one side and a drain port 14 serving as a drainage unit on the other side. The water supply port 13 is provided at a substantially central position in the height direction of the side plate portion of the main body 11, and the drainage port 14 is provided in the side plate portion on the other side of the main body 11, and between the water supply port 13 and the drainage port 14. A flow path 15 is formed. The water supply port 13 is provided with a sponge-like filter 16. An opening / closing lid (not shown) is provided on the upper plate portion of the main body 11.

  In the separation tank 2, a plurality of first to fifth vertical partition plates 21, 22, 23, 24 and 25 are provided from one side to the other side so as to partition the inside of the separation tank 2 into a plurality. The upper part of the adjacent first and second vertical partition plates 21 and 22 is provided with an oblique plate 26 that is lowered toward the other side, and the water supply port 13 is disposed on one side below the oblique plate 26. Yes. The upper portions of the first and second vertical partition plates 21 and 22 are watertightly closed by the oblique plate 26, and the lower portion of the second vertical partition plate 22 is between the bottom plate portion 12 and the bottom plate portion 12. A lower opening 27 constituting a part of the flow path 15 is formed.

  The first vertical partition plate 21 is a one-side vertical partition plate, the second vertical partition plate 22 is a main vertical partition plate, the third vertical partition plate 23 is an intermediate vertical partition plate, and the fourth The vertical partition plate 24 is a drain side main vertical partition plate.

  In the separation tank 2, a first tank 21S is provided between the first and second vertical partition plates 21 and 22, and a second tank 22S is provided between the second and third vertical partition plates 22 and 23. A third tank 23S is provided between the third and fourth vertical partition plates 23, 24, a fourth tank 24S is provided between the fourth and fifth vertical partition plates 24, 25, and A fifth tank 25 </ b> S is provided between the five vertical partition plates 25 and the side plate portion on the other side of the main body 11. An oil recovery tank 20S is provided on one side of the first tank 21S.

  Between the lower portions of the first and second vertical partition plates 21, 22, horizontal partition plates 31, 32 are provided in the upper and lower stages substantially parallel to the bottom plate portion 12, and the other side of the upper horizontal partition plate 31. Is provided with an opening 33 on the other side, a side opening 34 is provided on one side of the lower horizontal partition plate 32, and the side opening 34 is provided on the opposite side of the lower opening 27. A folded channel 35 is formed between the other side opening 33 and the horizontal partition plates 31, 32, the one side opened portion 34, and the lower opening 27. The folded channel 35 is a part of the channel 15. Configure.

  A space between the horizontal partition plates 31 and 32 is a horizontal passage 36, and a space between the horizontal partition plate 32 and the bottom plate portion 12 is a horizontal passage 36.

  The upper horizontal partition plate 31 has one side connected to the first vertical partition plate 21, and the other side opening 33 is provided between the other side edge and the second vertical partition plate 22. The lower horizontal partition plate 32 is provided with the one side opening 34 between one side edge and the first vertical partition plate 21, and the other side is connected to the second vertical partition plate 22. The lower opening 27 is positioned below the connecting portion 32R.

  The diagonal plate 26 watertightly connects the upper portion of the first vertical partition plate 21 and the second vertical partition plate 22, and the diagonal plate 26 is inclined so that the second partition plate 22 side becomes lower, A reduced space 42 that narrows upward is provided between the first vertical partition plate 21 and the oblique plate 26. The upper end of the second vertical partition plate 22 is connected to the upper plate portion of the main body 11. An oil discharge port 44 communicating with the oil recovery tank 20S is provided at the upper end of the first vertical partition plate 21.

  In addition, a bent edge 43 is formed at the upper ends of the third to fifth vertical partition plates 23, 24, and 25 so that the upper ends are bent substantially horizontally to one side, compared to the third vertical partition plate 23. The upper ends of the fourth and fifth vertical partition plates 24 and 25 are formed high. Note that the upper end of the third vertical partition plate 23 is located at a position lower than the upper end of the oblique plate 26.

  The lower portion of the third vertical partition plate 23 is connected to the bottom plate portion 12 and is closed, and the lower portion of the fourth vertical partition plate 24 is interposed between the bottom plate portion 12 and the flow path 15. A lower opening 28 constituting a part is formed. Between the lower portions of the third and fourth vertical partition plates 23 and 24, horizontal partition plates 31A and 32A are provided above and below, and the other side opening 33A is provided on the other side of the upper horizontal partition plate 31A. One side opening 34A is provided on one side of the lower horizontal partition plate 32A, and this one side opening 34A is provided on the opposite side of the lower opening 28, and the other side opening 33A and the horizontal partition plate A drainage-side folded flow path 35A is formed between 31A and 32A, and reaches the one-side opening 34A and the lower opening 28. The drainage-side folded flow path 35A constitutes a part of the flow path 15. .

  A horizontal passage 36 is provided between the horizontal partition plates 31A and 32A, and a horizontal passage 36 is provided between the horizontal partition plate 32A and the bottom plate portion 12.

  The upper horizontal partition plate 31 </ b> A has one side connected to the third vertical partition plate 23, and the other side opening 33 </ b> A is provided between the other side edge and the fourth vertical partition plate 24. The lower horizontal partition plate 32 </ b> A is provided with the one side opening 34 </ b> A between one side edge and the third vertical partition plate 23, and the other side is connected to the fourth vertical partition plate 24. The lower opening 28 is positioned below the connecting portion 32R.

  An auxiliary vertical partition plate 50 is provided between the fourth and fifth vertical partition plates 24 and 25. The lower portion of the auxiliary vertical partition plate 50 is connected to the bottom plate portion 12 and is closed, and the height thereof is half or less that of the main body 11 and serves as a reference for the initial water level.

  A lower opening 29 constituting a part of the flow path 15 is formed between the bottom plate portion 12 and the lower portion of the fifth vertical partition plate 25. On the other side of the fifth partition plate 25, the drain port 14 is formed in the bottom plate portion 12 or the lower portion of the side surface portion. A drain pipe 51 is connected to the drain port 14, and the drain pipe 51 is opened and closed. A valve 52 is provided.

  Thus, from the water supply port 13, the folded channel 35, the lower opening 27, the upper part of the third vertical partition plate 23, the drainage part side folded channel 35 </ b> A, the lower opening 28, the upper part of the auxiliary vertical partition plate 50, and the lower opening 29. A flow path 15 leading to the drain port 14 is provided.

  A leg portion 53 is provided outside the bottom plate portion 12 of the main body 11, and a handle 54 is provided outside the side surface of the main body 11. Further, between the first and third vertical partition plates 21, 23, a drainage port 55 is provided in the bottom plate portion 12, and a drainage port 56 is provided on the other side of the third vertical partition plate 23. The drain ports 55 and 56 are provided with opening / closing means (not shown) such as an opening / closing valve. An oil drain port 57 is provided in the bottom plate portion 12 of the oil recovery tank 20S, and the oil drain port 57 is provided with opening / closing means (not shown) such as an open / close valve.

  The supply means 4 includes supply paths 61A and 61B composed of pipes connecting the water supply port 13 and the oil recovery device 3, and a tube pump 62 provided between the supply paths 61A and 61B. The tube pump 62 pumps the object to be transported inside the tube by deformation of the tube. For example, as shown in FIG. 3, the supply path 61A on the water supply port side and the supply path 61B on the oil recovery device side are provided. A flexible tube body 63 is provided, a plurality of rollers 65 are provided around a rotary body 64 to be driven to rotate, and the tube body 63 is stretched around these rollers 65, and the rotary body 64 rotates. As a result, the roller 65 crushes the tube body 63 and pumps the water to be treated therein, and sucks the water to be treated with a restoring force that the deformed tube body 63 tries to restore. The supply means 4 includes a generator (not shown) as a power source for the tube pump 62.

  The oil recovery apparatus 3 includes a substantially cylindrical main body 72 having an inflow path 71 and connected to the supply path 61B, and a plurality of inflow holes that are radially drilled in the upper portion of the main body 72 and communicate with the inflow path 71. 73 and a float 74, and the float 74 supports the main body 72 so that the inflow path 71 faces upward and the inflow hole 73 is substantially at a water surface position. Accordingly, in the river 82 or the like, water (oil to be treated) containing the oil 101 flows into the inflow passage 71 from the inflow hole 73, and the main body 72 is swung by the flow of the river 82 to be covered from the upper portion of the inflow passage 71. The treated water flows into the inflow channel 71, and the oil 101 floating on the surface of the river 82 can be efficiently recovered.

  The return means 5 includes a drainage channel 81 composed of a pipe or the like having one end connected to the drainage pipe 51, and the other end of the drainage channel 81 is disposed in a river 82 that is a supply source of the treated water 100.

  Next, the processing method of the to-be-processed water 100 by the said oil separation apparatus 1 is demonstrated. The case where the water of the river 82 is treated water 100 will be described as an example. First, as shown in FIG. 5, water such as tap water is supplied from the water supply port 13 to the height of the auxiliary vertical partition plate 50. In this case, the drainage portion side of the third vertical partition plate 23 opens an opening / closing lid (not shown) of the upper plate portion, supplies water from here, and closes the opening / closing lid. In addition, when there is no tap water, you may use the water which does not contain an oil component. On the other hand, an oil fence (not shown) is stretched around the river 82 to prevent the spilled oil from diffusing and flowing downstream.

  In this way, when the tube pump 62 is driven after the preparation is completed, the treated water 100 of the river 82 is supplied into the main body 11 from the water supply port 13 by the oil recovery device 3. In this case, the tube pump 62 pumps the object-treated water 100 to be conveyed inside the tube by deformation of the tube. Therefore, compared with a pump equipped with an impeller, the water 100 to be treated is not stirred. Since the to-be-processed water 100 can be pumped, the emulsion of the oil 101 in the to-be-processed water 100 containing the oil 101 can be suppressed. Therefore, separation of the oil 101 due to the difference in specific gravity is performed well thereafter.

  The treated water 100 supplied from the water supply port 13 to the first tank 21 </ b> S is separated by the contained oil 101 floating on the top. When the treated water 100 containing a part of the oil passes through the return channel 35, the oil 101 cannot pass through the return channel 35, and the oil 101 floats and is separated. That is, since the length of the folded channel 35 having the two horizontal partition plates 31 and 32 can be increased, the oil 101 does not easily pass through the folded channel 35.

  When the water level of the first tank 21S rises, the water level of the second tank 22S communicating with the lower opening 27 also rises. As shown in FIG. 6, when the water level exceeds the upper end of the third vertical partition plate 23, The treated water 100 flows into the third tank 23S, and the contained oil 101 is prevented from passing to the fourth tank 24S by the lower drainage portion side folded flow path 35A, and the oil 101 is contained in the treated water 100 of the third tank 23S. Ascend to the top. The treated water 100 from which the oil has been separated in this way flows into the fourth tank 24S and the lower opening 29 through the lower opening 28 and into the fifth tank 25S, is discharged from the drain port 14, and is returned to the river 82. . In this case, the inside of the main body 11 is visually confirmed through a viewing window (not shown), and the opening / closing valve 52 is adjusted so that the water level in the main body 11 is maintained at the upper end of the third vertical partition plate 23 as shown in FIG. .

  When the recovery of the water 100 to be treated is completed, the on-off valve 52 is closed. When the on-off valve 52 for adjusting the water level is closed, the water level in the main body 11 rises, and as shown in FIG. 8, the oil 101 gathers in the reduced space 41 by the slanting plate 26, and this oil 101 is at the upper oil discharge port 44. To the oil recovery tank 20S.

  As described above, in this embodiment, the separation tank 2, the water supply port 13 serving as a water supply unit that supplies the treated water 100 including the oil 101 provided in the separation tank 2, and the treated water 100 including the oil 101 are supplied to the water supply port. 13, an oil separating apparatus including a supply means 4 for sending to a water tank 13 and a drain port 14 serving as a drainage part for draining the treated water 100 separated from the oil 101 provided in the separation tank 2. The supply means 4 includes a tube pump 62. Therefore, since the to-be-processed water 100 can be pumped without stirring, the emulsification of the to-be-processed water 100 containing the oil 101 can be suppressed, and the to-be-processed water 100 supplied to the water supply port 13 can be suppressed. The oil 101 can be easily separated.

  As described above, in this embodiment, the second vertical partition plate 21 that is the main vertical partition plate having the lower opening 27 through which the water to be treated 100 passes and the intermediate vertical partition plate through which the water 100 to be treated passes above. Since the third vertical partition plate 23 is provided, the oil 101 having a light specific gravity floats and is separated, the treated water 100 from which the oil 101 is separated passes through the lower opening 27, and the upper portion of the second vertical partition plate 21. Pass through.

  In this way, in this embodiment, the lateral flow path 36 through which the water 100 to be treated flows in the lateral direction is provided at the lower part of one side of the second vertical partition plate 22 that is the main vertical partition plate. Since it communicates with the lower opening 27, the oil passage 101 is not easily passed to the lower opening 27 by the lateral passage 36 provided on the water supply unit side upstream of the lower opening 27, and the oil 101 can be separated efficiently.

  Further, in this embodiment, since the horizontal flow paths 26 are provided in the upper and lower multistages, the passage of the oil 101 can be prevented by the horizontal passages 36 and 36 provided in the upper and lower multistages.

  As described above, in this embodiment, the first vertical partition plate 21 that is one side vertical partition plate is provided on one side of the second vertical partition plate 22 that is the main vertical partition plate. The upper portions of the two vertical partition plates are connected to each other by an inclined plate 26 whose side is lowered on the second vertical partition plate 22 side, and an oil discharge port 44 is formed on the upper portion of the first vertical partition plate 21 at a lower portion of the connection portion of the oblique plate 26. Therefore, the upper part between the second vertical partition plate 22 and the first vertical partition plate 21 has a shape that is reduced upward by the oblique plate 26, and the second vertical partition plate 22 and the first When the water level between the vertical partition plate 21 and the vertical partition plate 21 is raised, the oil 101 floats and collects at the upper portion and is discharged from the upper oil discharge port 44 to the outside.

  As an effect on the embodiment, the separation tank 2, the water supply port 13 which is a water supply unit provided in the separation tank 2 and supplied with the treated water 100 containing oil, and the treatment target provided in the separation tank 2 and separated from the oil In an oil separation apparatus that includes a drainage port 14 that drains water 100 and separates the oil 101 of the water 100 to be treated that flows from the water supply port 13 to the drainage port 14, the separation tank 2 is a main vertical partition plate. 2 vertical partition plates 22, a lower opening 27 is provided below the second vertical partition plate 22, and an upper horizontal partition having an opening 33 on the other side on the water supply portion side of the second vertical partition plate 22. A plate 31 is provided, a lower horizontal partition plate 32 is provided below the upper horizontal partition plate 31, a one-side opening 34 is provided in the lower horizontal partition plate 32, Between the lower horizontal partition plates 31 and 32, and the one side opening 34 Since the return flow path 35 that passes through the lower side of the lower horizontal partition plate 32 and reaches the lower opening 27 of the second partition plate 22 is provided, the treated water 100 that flows from the water supply port 13 to the drain port 14 is included. The oil 101 floats and passes through the lower opening 27 of the second vertical partition plate 22 in a state where the oil 101 is separated, and in particular, a folded flow provided in the upper and lower stages on the water supply side upstream of the lower opening 27. The passage 35 has a structure that makes it difficult for the oil 101 to pass through the lower opening 27, and the oil 101 can be separated efficiently.

  Further, as an effect on the embodiment, the lower horizontal partition plate 32 is connected to the second vertical partition plate 22, and the lower opening 27 of the second partition plate 22 is located below the connection portion 32 </ b> R. The oil 101 that has flowed to the opening 27 also accumulates above the lower opening 27 and can be prevented from passing through the lower opening 27.

  Further, as an effect on the embodiment, a first vertical partition plate 21 as one side vertical partition plate is provided on one side of the second vertical partition plate 22 as a main vertical partition plate, and this first vertical partition plate 21 and The upper portions of the second vertical partition plates 22 are connected to each other in a watertight manner by an oblique plate 26 whose second partition plate 22 side is lowered, and oil is placed on the upper portion of the first vertical partition plate 21 at the lower portion of the connection portion of the oblique plate 26. Since the discharge port 44 is provided, the upper part between the second vertical partition plate 22 and the first partition plate 21 has a shape reduced upward by the oblique plate 26, and the second vertical partition plate 22 When the water level between the first partition plate 21 and the first partition plate 21 is raised, the oil 101 floats and collects at the upper portion, and the oil 101 can be discharged to the outside from the upper oil discharge port 44.

  Further, as an effect on the embodiment, the water supply unit is provided in the first tank 21S which is a tank partitioned by the second vertical partition plate 22 which is the main vertical partition plate and the first vertical partition board 21 which is the one side vertical partition plate. Since the water supply port 13 is provided, the external treated water 100 is supplied from the water supply port 13 between the second vertical partition plate 22 and the first vertical partition plate 21, and the second vertical partition plate 22 and the first The oil 101 collected on the upper part between the one partition plates 21 can be processed.

  Further, as an effect of the embodiment, a fourth vertical partition plate serving as a drainage portion side main vertical partition plate is provided on the drainage portion side of the second vertical partition plate 22 serving as the main vertical partition plate, and this fourth vertical partition plate is provided. A lower opening 28 is provided in the lower portion of the plate 24, and an upper horizontal partition plate 31A having the other side opening 33A is provided on the water supply portion side of the fourth vertical partition plate 24, and the upper horizontal partition plate 31A is provided. A lower horizontal partition plate 32A is provided below, and one side opening 34A is provided in the lower horizontal partition plate 32A. From the other side opening 33A, between the upper and lower horizontal partition plates 31A and 32A, one side A drainage-side folded flow path 35A that passes through the opening 34A and the lower part of the lower horizontal partition plate 32A and reaches the lower opening 28 of the fourth vertical partition plate 24 is provided, and the water supply portion of the fourth vertical partition plate 24 The treated water that has passed through the drainage part side folded flow path 35A on the side Since the third vertical partition plate 23, which is an intermediate vertical partition plate through which 00 passes, is provided, the return flow channel 35 on the second vertical partition plate 22 side and the drainage portion side return flow channel 35A provide water to be treated. Oil 101 can be reliably separated from 100.

  In addition, as an effect on the embodiment, it is provided with a supply means 4 for supplying the water to be treated 100 to the water supply port 13 which is a water supply unit, and since the supply means 4 has the tube pump 62, the water to be treated is not stirred Since the water to be treated can be pumped, emulsification of the water to be treated 100 containing the oil 101 can be suppressed, and subsequent separation can be easily performed.

  Further, as an effect of the embodiment, since the oil separation device 1 is mounted on the self-propelled vehicle 6, the oil separation device 1 can be easily moved to a necessary site by the movement of the self-propelled vehicle 6. . Moreover, by providing the water supply port 13 with a filter 16, it is possible to prevent foreign matters from being mixed and foaming due to stirring. Furthermore, since a reduced space 42 that narrows upward is provided between the first vertical partition plate 21 and the oblique plate 26, the oil 101 gathers as the water level rises, and the oil 101 is easily collected. Since the oil discharge port 44 can be discharged from the oil discharge port 44 and is located on one side, the separated oil 101 does not enter the flow path 15 again. Further, since the fourth and fifth vertical partition plates 24 and 25 having the lower openings 28 and 29 are higher than the third vertical partition plate 23, the water to be treated that has passed through the upper portion of the third vertical partition plate 23. 100 does not pass over the upper portions of the fourth and fifth vertical partition plates 24 and 25. Moreover, since the height from the bottom plate part 12 of the lower openings 27 and 28 is half or less of the height of the connecting part 32R from the bottom plate part 12, the oil 101 is difficult to pass through the lower openings 27 and 28. A structure is obtained. Further, since the separation tank 2 is provided with the handle 54, the loading and unloading from the self-propelled vehicle 6 can be easily performed. Further, since the water supply port 13 is disposed above the horizontal partition plate 31 and above the upper end position of the auxiliary vertical partition plate 50, the water 100 to be treated can be smoothly supplied to the initial water level. Furthermore, since the oil discharge port 44 is located above the third vertical partition plate 23 having a flow path in the upper part, the oil 101 is stored in the upper part of the reduced space 42 in the separation step shown in FIGS. The water level can be raised after the separation step and the oil 101 can be discharged well.

  In addition, after collecting water not containing oil up to the height of the auxiliary vertical partition plate 50 at a predetermined water level in the separation tank 2, the water to be treated 100 is supplied from the water supply port 13 serving as the water supply unit, and the oil 101 is supplied on the water supply unit side. In addition to collecting and draining the treated water 100 from which the oil 101 has been separated from the drain port 14 serving as a drainage section, the oil separation treatment of the treated water 100 is more stable than when the treated water 100 is supplied at once. It can be performed.

  In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible. For example, there may be a plurality of water supply units and drainage units. In the embodiment, an example in which the lateral passage has two upper and lower stages is shown, but it may be one stage or three or more stages.

It is sectional explanatory drawing of the separation tank which shows Example 1 of this invention. It is a whole side view same as the above. It is a side view of a tube pump same as the above. It is sectional drawing of the principal part of an oil recovery apparatus same as the above. It is a cross-sectional explanatory drawing of the state which starts supply of to-be-processed water same as the above. It is a section explanatory view in the state where the water level of the 2nd tank rose same as the above. It is a section explanatory view in the state where the water level of each tank went up same as the above. It is a section explanatory view in the state where oil is discharged from an oil discharge port same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Oil separation device 2 Separation tank 3 Oil recovery device 4 Supply means 5 Return means 6 Self-propelled vehicle 13 Water supply port (water supply part)
14 Drainage port (drainage part)
15 Channel 20S Oil recovery tank 21S First tank (tank)
21 1st vertical partition (one side vertical partition)
22 Second vertical partition (main vertical partition)
23 Third vertical divider (intermediate vertical divider)
24 4th vertical partition (drainage side main vertical partition)
25 Fifth vertical partition plate 26 Diagonal plate 27 Lower opening 28 Lower opening 31, 31A Horizontal partition plate 32, 32A Horizontal partition plate 32R Connection location 33, 33A Other side opening 34, 34A One side opening 35, 35A Folding flow Channel 35A Drainage side folded channel 36 Horizontal channel 44 Oil discharge port 50 Auxiliary vertical partition plates 61A, 61B Supply channel 62 Tube pump 81 Drain channel 82 River (supply source)

Claims (5)

A separation tank, a water supply part for supplying water to be treated containing oil provided in the separation tank, a supply means for sending the water to be treated containing oil to the water supply part, and the separation tank provided for separating the oil An oil separator including a drainage unit for draining water to be treated, wherein the supply means includes a tube pump. The oil separator according to claim 1, comprising a main vertical partition plate having a lower opening through which the water to be treated passes, and an intermediate vertical partition plate through which the water to be treated passes. The oil separation device according to claim 2, wherein a lateral flow path through which the water to be treated flows in a lateral direction is provided at a lower part on one side of the main vertical partition plate, and a downstream side of the lateral flow path communicates with the lower opening. . The oil separator according to claim 3, wherein the lateral flow path is provided in multiple stages. A one-side vertical partition plate is provided on one side of the main vertical partition plate, and the one-side vertical partition plate and the upper portion of the main vertical partition plate are connected by an oblique plate whose lower side is the main vertical partition plate, and the diagonal The oil separator according to claim 3 or 4, wherein an oil discharge port is provided in an upper part of the one-side vertical partition plate at a lower part of a connecting portion of the plates.

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