JP2014033987A - Impurity removal-recovery system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of easily causing a passing obstacle.SOLUTION: Two sets of cooling parts 2 and 2a are provided in a box 1, and the respective cooling parts 2 and 2a are constituted of one cooling pipe 3 vertically penetrating through the box 1. The cooling parts 2 and 2a are arranged in areas 1a and 1b formed by dividing the inside of the box 1 into two sections, and a partition plate 10 provided in a boundary part between the areas 1a and 1b is formed so as to be communicable between the downstream side of the upstream side area 1a and the upstream side of the downstream side area 1b. A meandering flow passage 4 is formed in the box 1, and an inflow port 5 is formed in an upstream end part of the flow passage 4, and an outflow port 6 is formed in a downstream end part, in a side surface of the box 1. Air including oil mist passing through the flow passage 4 is cooled by outside air passing through the inside of a cooling pipe 3, and the inclusion mist is removed by condensing-sticking in a dew to an outer surface of the cooling pipe 3. The passing air is further cooled, and the inclusion mist is condensed, and is removed by colliding with/sticking to a flow passage forming surface, but the flow passage 4 is not blocked up due to having a sufficient extent.

Description

  The present invention separates and collects a part of oil mist generated together with cutting wastes and diffused in air from a machine tool such as a cutting machine that performs metal processing while supplying cutting oil to a processing site. The present invention relates to an impurity removal / recovery device that can reduce the burden on an existing oil mist collector.

  Conventionally, such an impurity removal / recovery device is installed in the middle of a duct connecting the machine tool and the oil mist collector, and the machine tool is driven by driving the blower of the oil mist collector downstream of the impurity removal / recovery device. The generated air containing oil mist, etc. is sucked into the box and passed through a plurality of filters arranged in the flow direction to capture and remove the oil mist (Conventional technology 1). Collides with a plurality of installed baffle plates, drops heavy heavy oil downward (Prior Art 2), and the oil mist becomes liquid and flows down the top surface of the inclined bottom plate from the drain port to the outside of the box It flows out and is returned to the machine tool and reused as necessary (for example, see Patent Document 1).

  Therefore, the air containing the oil mist that has entered from the duct adheres to the filter or passes through the meandering passage in the box, so that most of the oil mist is separated and removed, and the air that has passed through the impurity removal / recovery device. Is sucked into the oil mist collector on the downstream side from the duct, oil mist that could not be recovered by the box is removed by a filter (not shown), and the air that has passed through the oil mist collector is cleaned. ing.

JP 2010-17823 A

  However, in the above prior art 1, the oil mist can be captured and removed by passing through the filter regardless of the flow rate of the inflowing air. However, if the upstream filter clogs, Therefore, the filter must be washed frequently, and in the above-mentioned conventional technique 2, even if oil mist adheres to the baffle plate or the inner surface of the box, there is a possibility that the passage obstacle to the air passing through the box may occur. Although it is low, the oil mist trapping capacity depends on the flow velocity of the air flowing in the passage, and the ability to trap the oil mist could not be fully demonstrated, so the existing oil mist collector with a built-in filter on the downstream side There was a problem that had to be solved, such as a very heavy burden.

  The present invention is based on the above prior art, and in view of the problem that a passage failure occurs due to clogging or the oil mist capturing ability depends on the air flow rate, one or more cooling units are provided in the box, The cooling section is composed of one or a plurality of cooling pipes vertically passing through the box. On the side of the box, an inlet is provided at an upstream end portion of a flow path formed in the box, and an outlet is provided at a downstream end portion. Is installed on the upstream side of the oil mist collector, and the air containing the oil mist passing through the flow path is cooled by the outside air passing through the cooling pipe so that the outer surface of the cooling pipe Condensed mist is removed by condensation, and the passing air is cooled, so that the contained mist is condensed and easily collides and adheres to the flow path forming surface. It is not, Thus even in the removable part of the containing mist even slow flow rate, to solve the above problems.

In short, the present invention provides one or a plurality of cooling parts in a box, and the cooling part is composed of one or a plurality of cooling pipes vertically passing through the box, and is formed in the box on the side of the box. Since the inflow port is formed at the upstream end portion of the flow path and the outflow port is formed at the downstream end portion, the condensed mist is condensed on the outer surface of the cooling pipe or is cooled by cooling the air in the flow path. The amount of contained mist in the air discharged from the outlet, even if the flow rate is slow, because part of the contained mist can be removed by collision adhesion of the contained mist to the flow path forming surface or dropping to the bottom of the box Since the inside of the flow path is not blocked by the attached mist, it is possible to prevent the occurrence of a passage failure.
Furthermore, by installing it between the machine tool and the oil mist collector, it is possible to remove and collect a part of the contained mist beforehand, so the burden on the oil mist collector is reduced and the maintenance period of the oil mist collector is directly connected. The impurity removal / recovery device according to the present invention must be maintained more frequently than the oil mist collector, but can be installed on the floor or on the side of the cover instead. Because it is possible to work in low places, maintenance can be performed easily.

  The impurity removal / recovery device according to claim 1, wherein the box is provided with a pair of cooling units, wherein the box includes an upper and lower box part and an outer cylinder part that communicates between the upper and lower box parts. Since a linear flow path is formed in the box, an inflow port is formed in one of the upper and lower box portions, and an outflow port is formed in the other, it is effective as an exhaust processing means for a small-scale machine tool or the like.

  3. The impurity removal / recovery device according to claim 2, wherein an inflow port is formed in the upper box portion, and an outflow port is formed in the lower box portion, and an inflow port is formed in the lower box portion and an outflow port is formed in the upper box portion. Since the impurity removal / recovery devices are alternately arranged and the outlet of the upstream impurity removal / recovery device is connected to the inlet of the downstream impurity removal / recovery device, there are multiple cooling pipes as a whole. Because the cooling function of the air in the flow path can be improved and the passing air is suddenly changed in the middle, inertial force acts on the contained mist and adheres to the formation surface of the flow path. The removal efficiency can be improved.

The impurity removal / recovery device according to claim 1, wherein a plurality of sets of cooling units are provided in the box.
The box is divided into the same number of regions as the cooling unit, the cooling unit is arranged in the region, and a partition plate is provided at the boundary between adjacent regions. The partition plate is located on the downstream side and the downstream side of the upstream region. Since it is formed so as to communicate with the upstream side of the region, the same effect as that of the invention according to claim 3 can be obtained.

  5. The impurity removal / recovery device according to claim 4, wherein the box has an upper and lower box part, and communicates between the upper and lower box parts, and has the same number of outer cylinder parts as the cooling parts, and the inside of the outer cylinder part. In the upper and lower box part, a partition plate is provided between the upstream side of the upstream side region and the downstream side of the downstream side region. In addition, the downstream side of the upstream region and the upstream side of the downstream region are in communication with each other without partitioning, and an inlet is provided at the upstream end portion of the flow path at one of the upper and lower box portions, and the downstream end. Since the outflow port is formed in the part, the same effects as the inventions according to claims 3 and 4 can be obtained, and each region is completely isolated in the outer cylinder part, so that the upper and lower sides on the boundary Since one of the boxes can be dealt with by partitioning it with a partition plate, It is possible to split.

  Since at least one of the inner surface of the outer cylinder part and the outer surface of the cooling pipe is an uneven surface, the contained mist can be easily attached, and thus the removal efficiency can be improved.

  The outer cylinder part can be detachably attached to the upper and lower box parts, and the cooling pipe has a through cylinder part that is penetrated and fixed to the upper and lower box parts, and an inner cylinder part that communicates between the through cylinder parts. In addition, since the inner cylinder part is detachable from the through cylinder part, the practical effect such as simplification of the cleaning / replacement operation of the outer cylinder part and the inner cylinder part is significant.

It is a longitudinal cross-sectional view which shows the basic composition of Example 1 of the impurity removal / collection | recovery apparatus based on this invention. It is a longitudinal cross-sectional view which shows the usage example of the impurity removal / collection | recovery apparatus of FIG. FIG. 3 is a cross-sectional view of the impurity removal / recovery device of FIG. 2. It is a schematic longitudinal cross-sectional view of the impurity removal / collection | recovery apparatus which has 3 sets of cooling parts. It is a front perspective view which shows the basic composition of the impurity removal / collection | recovery apparatus which has 4 sets of cooling parts. It is a back perspective view which shows the basic composition of the impurity removal / collection | recovery apparatus which has 4 sets of cooling parts. It is a front perspective view which shows the basic composition of the impurity removal / collection | recovery apparatus which has 6 sets of cooling parts. It is a back perspective view which shows the basic composition of the impurity removal / collection | recovery apparatus which has 6 sets of cooling parts. It is a longitudinal cross-sectional view which shows the basic composition of Example 2 of the impurity removal / collection | recovery apparatus based on this invention. It is a longitudinal cross-sectional view which shows the usage example of the impurity removal / collection | recovery apparatus of FIG. It is a schematic longitudinal cross-sectional view of the usage example which connected the four impurity removal and collection | recovery apparatuses of FIG. It is a perspective view which shows the basic composition of Example 3 of the impurity removal / collection | recovery apparatus concerning this invention.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
In the impurity removal / recovery device for removing / recovering air impurities, particularly oil mist, according to the present invention, basically, one set of cooling units 2 or a plurality of sets of cooling units 2 in the box 1; 2a is provided, and each of the cooling part 2 or the cooling parts 2, 2a ... is composed of one cooling pipe 3 or a plurality of cooling pipes 3, 3a ... penetrating the box 1, and on the side of the box 1 The inlet 5 is formed at the upstream end portion of the flow path 4 formed in the box 1, and the outlet 6 is formed at the downstream end portion.

  FIG. 1 is a longitudinal sectional view showing a basic configuration of an impurity removal / recovery device according to a first embodiment of the present invention. The first embodiment has two sets of cooling units 2 and 2a in a box 1. FIG. The box 1 has upper and lower box parts 7, 8 and two outer cylinder parts 9, 9a communicating with the upper and lower box parts 7, 8 and having the same number as the cooling parts 2, 2a, The cooling units 2 and 2a are disposed in the outer cylinders 9 and 9a, and each of the cooling units 2 and 2a is constituted by one cooling pipe 3.

  The inside of the box 1 is divided into areas 1a and 1b with the boundary between the outer cylinder parts 9 and 9a, and the upper box part 7 is partitioned between the upstream area 1a and the downstream area 1b on the boundary line. By providing the plate 10, the upstream region 1 a and the downstream region 1 b in the lower box portion 8 are not partitioned and communicated, and the meandering flow path 4 is formed in the box 1. An inlet 5 is formed at the upstream end portion of the flow path 4 and an outlet 6 is formed at the downstream end portion of the upper box portion 7.

  Specifically, the outer cylindrical portions 9 and 9a are cylindrical portions having an uneven surface on the outer surface such as an expandable bellows tube, for example, and the peripheral edges of the two communication ports 13 and 13a formed on the lower surface of the upper box 7 The outer cylinder part 9 is attached to the mounting cylinder parts 14 and 14a projecting downward from the upper part and the mounting cylinder parts 16 and 16a projecting upward from the peripheral parts of the two communication ports 15 and 15a formed on the upper surface of the lower box 8. The upper and lower end portions of the outer cylindrical portions 9 and 9a are fixed to the upper and lower boxes 7 and 8 by a binding band wound around the upper and lower end portions of the outer cylindrical portions 9 and 9a.

  The cooling pipe 3 passes through the upper and lower boxes 7 and 8, and the through cylinders 17 and 18 are fixed to the upper and lower boxes 7 and 8, and the inner cylinder is detachably mounted between the through cylinders 17 and 18. The inner cylindrical portion 19 has an uneven surface such as an expandable bellows tube, and penetrates through the communicating ports 13, 13a, 15, 15a. The upper and lower end portions of the inner cylinder portion 19 are fitted on the cylinder portions 17 and 18, and the inner cylinder portion 19 is fixed to the upper and lower boxes 7 and 8 by a binding band wound around the upper and lower end portions of the inner cylinder portion 19. ing.

  FIGS. 2 and 3 are a longitudinal sectional view and a transverse sectional view showing a specific example of use of the impurity removing / recovering apparatus of FIG. 1. This impurity removing / recovering apparatus is of a type installed on the floor, and is an upper part of the frame 20. The upper box 7 is fixed to the lower portion and the lower box 8 is fixed to the lower portion, and protective panels 21, 21a,... Are detachably attached to the front and rear surfaces of the frame 20, and although not shown, the inflow port 5 is on the machine tool side. The outlet 6 is connected to the oil mist collector side.

  Further, it is preferable that the bottom plate 22 of the lower box 3 is an inclined plate, and a drain port 23 that can be opened and closed is formed on the lower end side of the bottom plate 22, and an oil pan 24 is disposed below the drain port 23.

  Although not shown, a plurality of impurity removal / recovery devices shown in FIGS. 2 and 3 are provided, and an outlet 6 of the adjacent upstream impurity removal / recovery device and an inlet 5 of the downstream impurity removal / recovery device are provided. You may connect and use.

  FIG. 4 is a schematic longitudinal sectional view of an impurity removing / recovering device having three sets of cooling units 2, 2a, 2b. Box 1 has the same number of upper and lower box units 7, 8 and cooling units 2, 2a, 2b. There are three outer cylinder parts 9, 9a, 9b, and the cooling parts 2, 2a, 2b are each composed of one cooling pipe 3.

  The inside of the box 1 is divided into areas 1a, 1b, 1c with the outer cylinder parts 9, 9a, 9b as boundaries, and the upper box part 7 is partitioned between the upstream area 1a and the downstream area 1b. The plate 10 is provided with a partition plate 10a between the upstream region 1b and the downstream region 1c in the lower box portion 8, and the upstream region 1a and the downstream region 1b in the lower box portion 8 are provided. The upper region 1b and the downstream region 1c in the upper box portion 7 are connected to each other without being partitioned, and a meandering flow path 4 is formed in the box 1 to form an upper box. An inlet 5 is formed at the upstream end portion of the flow path 4 of the portion 7, and an outlet 6 is formed at the downstream end portion of the flow path 4 of the lower box portion 8.

  The upper box 7 is provided with communication ports 13, 13a and 13b, and the lower box 8 is provided with communication ports 15, 15a and 15b. Although not shown, the connection ports 13, 13a and 13b and the communication ports 15, 15a and 15b are provided with mounting cylinders. The outer cylinder parts 9, 9a, 9b may be detachably attached, and the cooling pipe 3 may also be composed of an upper and lower through cylinder part and an inner cylinder part.

  Moreover, in the impurity removal / recovery device shown in FIGS. 1 to 4, the inside of the box 1 is divided so that a plurality of regions 1a, 1b,... For example, as shown in FIGS. 5A and 5B, a plurality of regions 1a, 1b,... Are regularly arranged in the vertical and horizontal directions (in the drawing, the four regions 1a, 1b, 1c, and 1d are arranged in two rows and two columns. ) Are divided so as to be arranged, or as shown in FIGS. 6A and 6B, a plurality of regions 1a, 1b... Are equally spaced on the same circumference (in the drawing, six regions 1a, 1b , 1c, 1d, 1e, and 1f may be arranged in a two-dimensional manner, such as being divided so as to be arranged at equal intervals on the same circumference.

  Specifically, in the impurity removal / recovery device shown in FIGS. 5A and 5B, the box 1 has regions 1a and 1b with boundaries between the outer cylindrical portions 9, 9a, 9b, and 9c. , 1c, 1d, partition plate 10 between region 1a and region 1b in upper box 7, partition plate 10a between region 1b and region 1c in lower box portion 8, and upper box 7 A partition plate 10b between the region 1c and the region 1d in the lower box portion 8, a partition plate 10c between the region 1a and the region 1d in the lower box portion 8, and a partition between the region 1a and the region 1d in the upper box 7 A plate 10d is provided, and between the region 1a and the region 1b in the lower box portion 8, between the region 1b and the region 1c in the upper box portion 7, and between the region 1c and the region 1d in the lower box 8 As a communication state without partitioning, a meandering flow path 4 is formed in the box 1, An inflow port 5 is formed at the upstream end portion of the flow path 4 and an outflow port 6 is formed at the downstream end portion.

  In the impurity removal / recovery device shown in FIGS. 6 (a) and 6 (b), a region 1a in which the inside of the box 1 is bounded by the outer tube portions 9, 9a, 9b, 9c, 9d, 9e, 1b, 1c, 1d, 1e, 1f divided into a partition plate 10 between the region 1a and the region 1b in the upper box 7, and a partition plate 10a between the region 1b and the region 1c in the lower box portion 8. The partition plate 10b is disposed between the region 1c and the region 1d in the upper box 7, the partition plate 10c is disposed between the region 1d and the region 1e in the lower box 8, and the region 1e in the upper box 7 and the downstream side. A partition plate 10d between the region 1f and the region 1f in the lower box portion 8, a partition plate 10e between the region 1a and the region 1f in the lower box portion 8, and a partition plate 10f between the region 1a and the region 1f in the upper box 7. And between the region 1a and the region 1b in the lower box portion 8, between the region 1b and the region 1c in the upper box portion 7, Between the region 1c and the region 1d in the side box 8, between the region 1d and the region 1e in the upper box portion 7, and between the region 1e and the downstream region 1f in the lower box 8 without communication. As a state, a meandering flow path 4 is formed in the box 1, and an inlet 5 is formed at the upstream end portion of the flow path 4 and an outlet 6 is formed at the downstream end portion of the upper box portion 7.

  FIG. 7 is a longitudinal sectional view showing the basic configuration of the second embodiment of the impurity removing / recovering apparatus according to the present invention. This second embodiment has a pair of cooling units 2 in a box 1 and 1 has upper and lower box parts 7 and 8, and communicates between the upper and lower box parts 7 and 8, and has the same number of outer cylinder parts 9 as the cooling part 2. The cooling unit 2 is arranged, and the cooling unit 2 is composed of a single cooling pipe 3, and an inflow port 5 is formed in the upper box unit 7 and an outflow port 6 is formed in the lower box unit 8. The flow path 4 is formed.

  The upper box 7 is provided with a communication port 13 and a mounting cylinder 14, the lower box 8 is provided with a communication port 15 and a mounting cylinder 16, and the outer cylinder 9 is detachably mounted. It consists of parts 17, 18 and an inner cylinder part 19.

  FIG. 8 is a longitudinal sectional view showing a specific example of use of the impurity removal / recovery device of FIG. 7, which is installed and integrated on the side surface of the cover C of the machine tool, and the cover C side in the upper and lower box portions 7 and 8. The inlets 5 and 6 are formed on the side surfaces of the cover C, and the communication ports H and Ha with the inlets 5 and 6 are formed in the cover C.

  Further, it is preferable that the bottom plate 22 of the lower box 3 is an inclined plate, and a drain port 23 that can be opened and closed is formed on the lower end side of the bottom plate 22.

  FIG. 9 is a schematic longitudinal sectional view of an impurity removal / recovery device in which four impurity removal / recovery devices in FIG. 7 are connected. Impurities provided with an inlet 5 in the upper box 7 and an outlet 6 in the lower box 8. The removal / recovery device and the impurity removal / recovery device provided with the outflow port 6 in the upper box 7 and the inflow port 5 in the lower box 8 are alternately arranged, and the outflow port 6 of the adjacent upstream impurity removal / recovery device. And an inlet 5 of the downstream impurity removal / recovery device is connected to the impurity removal / recovery device in which the flow path 4 of each impurity removal / recovery device is continuous in a meandering manner.

  FIG. 10 is a perspective view showing an example of the third embodiment of the impurity removing / recovering apparatus according to the present invention. This third embodiment has a pair of cooling sections 2 in the box 1, and the box 1 As in the second embodiment, the upper and lower box parts 7 and 8 and one outer cylinder part 9 are provided. The cooling part 2 is composed of three cooling pipes 3, 3a and 3b, and the upper box part. An inflow port 5 is formed in 7, an outflow port 6 is formed in the lower box portion 8, and a linear flow path 4 is formed in the box 1.

  Although the upper box 7 is provided with a communication port 13 and the lower box 8 is provided with a communication port 1515b. Although not shown, an attachment tube portion may be provided at the communication port 13 and the communication port 15, and the outer tube portion 9 may be detachably attached. Moreover, the cooling pipe 3 may be similarly comprised by the up-and-down through cylinder part and the inner cylinder part.

  It should be noted that the impurity removal / recovery device having a plurality of sets of cooling units may be configured by a plurality of cooling pipes, although not shown.

  That is, the number of sets of cooling units 2, 2 a... And the arrangement form thereof in the impurity removal / recovery device according to the present invention are not limited to those shown in the drawing, and in short, a plurality of sets of cooling units 2, 2 a. In the impurity removal / recovery device, the box 1 is divided into the same number of regions 1a, 1b as the cooling units 2, 2a, and the cooling units 2, 2a are arranged in the regions 1a, 1b. Are provided at the boundary between adjacent regions 1a, 1b..., And the partition plates 10, 10a... Are located downstream of the upstream regions 1a, 1b and downstream regions 1b, 1c. Any device that can communicate with the upstream side may be used.

The outer cylinder portions 9, 9a,... And the inner cylinder portion 19 may be simple straight pipes. Preferably, one or both of the inner surface of the outer cylinder portions 9, 9a, and the outer surface of the inner cylinder portion 19 is used. An uneven surface is formed, and more preferably, one or both of the outer tube portions 9, 9a,.
The flexible bellows tube is actually a flexible duct with aluminum foil affixed to a spiral wire because it can be expanded and contracted, the inner and outer surfaces are uneven, has good thermal conductivity, and is inexpensive. Although selected, it may be made of metal or resin.
Also, each of the cooling pipes 3, 3a,... Is configured by the through cylinder parts 17, 18 and the inner cylinder part 19, so that the inner cylinder part 19 is detachable. Preferably, it is sufficient that at least the outer side surface of the insertion portion to the outer cylindrical portions 9, 9a.

  Although not shown, a filter may be installed at an appropriate location in the flow path 4.

Next, the operation of the impurity removal / recovery device according to the present invention will be described.
Cooling pipes 3 and 3a through which air containing oil mist and the like flowing in from the inflow port 5 passes through the flow path 4 and flows out from the outflow port 6 and through which the low temperature outside air passes when passing through the flow path 4. The passing air is cooled by the above, and the contained mist is condensed on the outer peripheral surface of the cooling pipes 3, 3 a, and the inner surfaces of the outer cylindrical portions 9, 9 a. The contained mist collides and adheres to the effluent air from which part of the contained mist is removed.
In addition, those having the meandering flow path 4 shown in FIGS. 1 to 4 and those having the meandering flow path 4 as shown in FIG. An inertial force acts on the mist and adheres to the formation surface of the flow path 4.
And the containing mist adhering to the cooling pipes 3, 3a ... and the outer cylinders 9, 9a ... is dropped and stored on the bottom plate 22 of the lower box 8, and in the case shown in FIGS. If it is opened, it is discharged outside.

  Since the outer cylinder part 9 and the inner cylinder body 19 shown in FIGS. 7 and 8 and the outer cylinder parts 9, 9a... And the inner cylinder body 19 shown in FIGS. Become.

Next, the procedure at the time of attachment / detachment of the outer cylinder part 9 and the inner cylinder part 19 will be described with reference to the impurity removal / recovery device shown in FIGS.
At the time of installation, the upper end side of the contracted inner cylinder part 19 is first fixed, then the upper end side of the contracted outer cylinder part 9 is fixed, and then the contracted inner cylinder part 19 is extended and the lower end side is fixed. Finally, the contracted outer cylinder part 9 is extended and the lower end side is fixed, and the inner cylinder part 19 and the outer cylinder part 9 are attached.
At the time of removal, first, the lower end side of the outer cylinder part 9 is removed to contract the outer cylinder part 9, then the lower end side of the inner cylinder part 19 is removed, and then the upper end side of the outer cylinder part 9 is removed to remove the outer cylinder part 9 And finally, the upper end side of the inner cylinder part 19 is removed, and the inner cylinder part 19 and the outer cylinder part 9 are removed.

  The impurity removal / recovery device according to the present invention is installed in the middle part of a duct connecting between a machine tool and an existing oil mist collector, and if a plurality of units with a fan are installed in a factory as a single unit, It can also be used as a cleaner, and it can also be used as a simple air-conditioning facility by connecting a warm air suction duct in the attic to the inlet.

1 box
1a, 1b ... Area 2, 2a ... Cooling part 3, 3a ... Cooling pipe 4 Flow path 5 Inlet 6 Outlet 7, 8 Upper / lower box part 9 Outer cylinder part
10, 10a… Partition plate
17, 18 Through tube
19 Inner tube

Claims (8)

  One or a plurality of cooling units are provided in the box, and the cooling unit is composed of one or a plurality of cooling pipes vertically passing through the box, and a flow path formed in the box on the side of the box. An impurity removing / recovering device characterized in that an inlet is formed at an upstream end portion and an outlet is formed at a downstream end portion.   The impurity removal / recovery device according to claim 1, wherein the box is provided with a pair of cooling units, wherein the box includes an upper and lower box part and an outer cylinder part that communicates between the upper and lower box parts. An impurity removal / recovery device, wherein a linear flow path is formed in a box, and an inflow port is formed in one of the upper and lower box portions, and an outflow port is formed in the other.   3. The impurity removal / recovery device according to claim 2, wherein an inflow port is formed in the upper box portion, and an outflow port is formed in the lower box portion, and an inflow port is formed in the lower box portion and an outflow port is formed in the upper box portion. The impurity removal / recovery device is alternately arranged, and the outlet of the upstream impurity removal / recovery device is connected to the inlet of the downstream impurity removal / recovery device. The impurity removal / recovery device according to claim 1, wherein a plurality of sets of cooling units are provided in the box.
The box is divided into the same number of regions as the cooling unit, the cooling unit is arranged in the region, and a partition plate is provided at the boundary between adjacent regions. The partition plate is located on the downstream side and the downstream side of the upstream region. An impurity removing / recovering device characterized in that it can communicate with the upstream side of the region.   5. The impurity removal / recovery device according to claim 4, wherein the box has an upper and lower box part, and communicates between the upper and lower box parts, and has the same number of outer cylinder parts as the cooling parts, and the inside of the outer cylinder part. In the upper and lower box part, a partition plate is provided between the upstream side of the upstream side region and the downstream side of the downstream side region. In addition, the downstream side of the upstream region and the upstream side of the downstream region are in communication with each other without partitioning, and an inlet is provided at the upstream end portion of the flow path at one of the upper and lower box portions, and the downstream end. Impurity removal / recovery device characterized in that an outlet is formed at the site.   6. The impurity removing / recovering device according to claim 2, wherein at least one of an inner surface of the outer cylinder portion and an outer surface of the cooling pipe is an uneven surface.   7. The impurity removal / recovery device according to claim 2, wherein the outer cylinder portion is detachable with respect to the upper and lower box portions.   The cooling pipe has a through cylinder portion that is fixed through the upper and lower box portions and an inner cylinder portion that communicates between the through cylinder portions, and the inner cylinder portion is detachable from the through cylinder portion. 8. The impurity removal / recovery device according to claim 2, 3, 4, 5, 6 or 7.

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