JP2006043566A - Muddy water classifying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently wash and recover a granule B from fed muddy water A correspondingly to the kind of the fed muddy water A to be treated. <P>SOLUTION: A plurality of cyclones 1, 2, 3, 4, 5, 6 are arranged side by side at a treating pathway R between feeding equipment 13 and discharging equipment 14. The feeding equipment 13 is connected with an entrance 10 of the cyclone 1 on the most upstream side among the cyclones 1 to 6, and further, the discharging equipment 14 is connected with an uppersided exit 11 of the cyclone 6 on the most downstream side among the cyclones 1 to 6. The uppersided exit 11 of the upstream sided cyclone 1 to 5 and the entrance 10 of the downstream sided cyclone 2 to 6 are connected with each other among both cyclones 1 to 6 adjacently arranged on the upstream side and the downstream side. An inside diameter of a whirling chamber in a separation tube 7 is made smaller at the downstream sided cyclones 2 to 6 than that at the upstream sided cyclones 1 to 5 so that size of the granule B recovered from an underflow regulating valve 12 of each cyclone 1 to 6 becomes smaller at the downstream sided cyclones 2 to 6 than that at the upstream sided cyclones 1 to 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention treats the supplied mud with a cyclone and separates it into separated mud and recovered particles, and in particular removes adhering substances such as heavy metals attached to the particles in the supplied mud from the particles and cleans them. It relates to a mud moisture class device.

  Conventionally, a cyclone that separates the supplied muddy water introduced from the inlet into the swirl chamber in the separation cylinder into separation muddy water discharged from the upper outlet of the separation cylinder and particles recovered from the lower outlet of the separation cylinder. Is well known. Regarding the cyclone, there are a wide range from a large inside diameter to a small inside diameter of the swirl chamber into which the supplied mud is introduced.

  A cyclone with a small inner diameter of the swirl chamber can collect particles having a small diameter compared to a cyclone with a large inner diameter of the swirl chamber, but has a small amount of treatment and tends to leave heavy metals in the particles. A cyclone having a large inner diameter of the swirl chamber has a larger throughput than a cyclone having a smaller inner diameter of the swirl chamber, and it is difficult for heavy metals to remain in the particles, but particles having a small diameter cannot be recovered. Therefore, a cyclone with a small inside diameter of the swirl chamber and a cyclone with a large inside diameter of the swirl chamber have advantages and disadvantages, respectively. Therefore, it is difficult to efficiently recover particles from the supplied mud according to the type of supplied mud to be treated only with a cyclone having the same inner diameter of the swirl chamber.

  An object of the present invention is to efficiently wash and collect particles from the supplied mud according to the type of the supplied mud.

The present invention will be described with reference to the drawings of the following embodiments (first embodiment shown in FIGS. 1 and 4, second embodiment shown in FIGS. 2 and 4, third embodiment shown in FIGS. 3 and 4). To do.
The mud moisture class apparatus according to the invention of claim 1 corresponds to the first embodiment and the second embodiment, and is configured as follows.

  A plurality of cyclones (1, 2, 3, 4, 5, 6) are juxtaposed in one or more treatment paths (R) between the pre-treatment mud supply port (13) and the post-treatment mud discharge port (14). Has been established. In each of the cyclones (1 to 6), the supply muddy water (A) introduced into the swirl chamber (8a) in the separation cylinder (7) from the inlet (10) is supplied to the upper side of the separation cylinder (7). It isolate | separates into the separated muddy water (C) discharged | emitted from an exit (11), and the granule (B) collect | recovered from the lower side exit (12) in the lower part of this separation cylinder (7). Of the cyclones (1, 2, 3, 4, 5, 6) in the treatment path (R), the pretreatment muddy water supply port (13) is connected to the inlet (10) of the most upstream cyclone (1). In addition, the post-treatment mud discharge port (14) is connected to the upper outlet (11) of the most downstream cyclone (6), and both the cyclones (1, 2, 2, 2) adjacent to each other on the upstream side and the downstream side are connected. 3, 3, 4, 4, 5 and 5, 6) connect the upper outlet (11) of the upstream cyclone (1-5) and the inlet (10) of the downstream cyclone (2-6) to each other. ing. Invention of Claim 2 so that the diameter of the granule (B) collect | recovered from a lower exit (12) may become small with a downstream cyclone (2-6) rather than an upstream cyclone (1-5), for example. The cyclones (1, 2, 3, 4, 5, 6) are arranged in the processing path (R). For example, regarding the arrangement of the cyclones (1 to 6) in one processing path (R), the inner diameter (D) of the swirl chamber (8a) in the cyclones (1 to 6) as in the first and second embodiments. ) In order from the upstream side to the downstream side.

  In the invention of claim 1, the granules (B) are separated from the supplied mud water (A) by a plurality of cyclones (1, 2, 3, 4, 5, 6) having different diameters of the recovered granules (B). In addition, the particles (B) having a large diameter and the particles (B) having a small diameter can be sequentially washed efficiently and collected. Since heavy metals are likely to remain in the small-diameter particles (B), when each cyclone (1, 2, 3, 4, 5, 6) is placed in the treatment path (R), the particles (B) Predetermine the inner diameter (D), number and arrangement of swirl chambers (8a) in the cyclone (1-6) according to the type of feed mud (A) to be treated so that the remaining heavy metals are within the allowable range. Can do.

The invention of claim 2 based on the invention of claim 1 corresponds to the first embodiment and the second embodiment, and is configured as follows.
In each cyclone (1, 2, 3, 4, 5, 6) of the processing path (R), the inner diameter (D) of the swirl chamber (8a) in the separation cylinder (7) is the upstream cyclone (1-5). ), The diameter of the granules (B) recovered from the lower outlet (12) is downstream of the upstream cyclones (1-5). The cyclone (2-6) is made smaller. In the invention of claim 2, the cyclones (1, 2, 3, 4, 5, 6) having different inner diameters (D) of the swirling chamber (8a) into which the supplied mud water (A) is introduced into the processing path (R). The diameter of the collected particles (B) can be easily changed simply by arranging them.

The mud moisture class apparatus according to the invention of claim 3 corresponds to the third embodiment and is configured as follows.
A plurality of cyclone units (U1, U2, U3, U4, U5, U6) are juxtaposed in the treatment path (R) between the pretreatment muddy water supply port (13) and the treated muddy water discharge port (14). . In each of the cyclone units (U1 to U6), the supply muddy water (A) introduced into the swirl chamber (8a) in the separation cylinder (7) from the inlet (10) is located above the separation cylinder (7). Cyclone (1, 2) that separates into separated muddy water (C) discharged from the upper outlet (11) and granules (B) recovered from the lower outlet (12) at the bottom of the separation cylinder (7) , 3, 4, 5, 6). Among the cyclone units (U1, U2, U3, U4, U5, U6) in the treatment path (R), the pretreatment muddy water supply port (13) is connected to the carry-in port (21) of the most upstream cyclone unit (U1). ), And the post-treatment mud discharge port (14) is connected to the carry-out port (32) of the most downstream cyclone unit (U6), and both cyclone units (U1) adjacent to each other on the upstream side and the downstream side are connected. , U2 and U2, U3 and U3, U4 and U4, U5 and U5 and U6), the upstream cyclone unit (U1 to U5) outlet (22, 24, 26, 28, 30) and the downstream cyclone unit The carry-in entrances (23, 25, 27, 29, 31) of (U2 to U6) are connected to each other. In each cyclone unit (U1 to U6), one or more carry-in ports (21, 23, 25, 27, 29, 31) and carry-out ports (22, 24, 26, 28, 30, 32) should be provided. Can do. In each cyclone unit (U1, U2, U3, U4, U5, U6), the carry-in inlet (21, 23, 25, 27, 29, 31) is connected to the inlet (10) of the cyclone (1-6) and the cyclone. The upper outlet (11) of (1-6) is connected to the carry-out outlet (22, 24, 26, 28, 30, 32), and the lower outlet of the cyclone (1-6) in each cyclone unit (U1-U6) The diameter of the granules (B) recovered from the recovery port (33) connected to (12) is smaller in the cyclone units (U2 to U6) on the downstream side than the cyclone units (U1 to U5) on the upstream side. Each cyclone unit (U1-U6) is arranged. Incidentally, one or two or more cyclones (1-6) are provided in each cyclone unit (U1-U6), and the swirl chamber in the cyclone (1-6) for each cyclone unit (U1-U6). The inner diameter (D) of (8a) may be the same as in the third embodiment or may be different although not shown. In short, the diameter of the recovered granules (B) is the upstream side. Cyclone (U1-U6) for each cyclone unit (U1-U6), depending on the type of feed mud (A) to be treated, so that it becomes smaller in the cyclone units (U2-U6) on the downstream side of the cyclone unit (U1-U5) The internal diameter (D), the number and arrangement of the swirl chamber (8a) in 1-6) are determined.

  In invention of Claim 3, a granule (B) is isolate | separated from a supplied muddy water (A) by several cyclone units (U1, U2, U3, U4, U5, U6) from which the diameter of the collect | recovered granule (B) differs. Thus, the granular material (B) having a large diameter to the granular material (B) having a small diameter can be sequentially washed efficiently and recovered. Since heavy metals are likely to remain in the small-diameter particles (B), the heavy metals remaining in the particles (B) are within the allowable range when the cyclone units (U1 to U6) are arranged in the treatment path (R). The inner diameter (D) and the number of swirl chambers (8a) in the cyclones (1 to 6) in each cyclone unit (U1 to U6) are determined in advance according to the type of supply mud (A) to be treated. be able to.

  In the present invention, the particles (B) can be efficiently washed and recovered from the supplied muddy water (A) according to the type of the supplied muddy water (A) to be treated.

First, the mud moisture class device concerning a 1st embodiment of the present invention is explained with reference to Drawing 1 and Drawing 4. FIG.
In one processing path R shown in FIG. 1, a plurality of (for example, six) cyclones 1, 2, 3, 4, 5, 6 (negative pressure cyclones) are sequentially arranged in parallel from the upstream side to the downstream side. As shown in FIG. 4, in each of the cyclones 1, 2, 3, 4, 5, and 6, the separation cylinder 7 includes a cylindrical portion 8 provided at the upper portion and a conical portion 9 provided at the lower portion. An inlet 10 is provided on the outer peripheral surface of the portion 8, an upper outlet 11 is provided at the upper end surface of the cylindrical portion 8, and an underflow adjusting valve 12 (lower outlet) is provided at the lower end portion of the conical portion 9. Is provided. Among the cyclones 1, 2, 3, 4, 5, and 6 in the treatment path R, the inlet 10 of the most upstream cyclone 1 is provided with a supply facility 13 (a supply tank 13a and a supply pump 13b) as a pretreatment mud supply port. ) Is connected. Further, a discharge facility 14 (a discharge tank 14a and a drainage channel 14b) as a post-treatment muddy water discharge port is connected to the upper outlet 11 of the most downstream cyclone 6. Further, in both the cyclones 1 and 2, the two cyclones 2 and 3, the two cyclones 3 and 4, the two cyclones 4 and 5, and the two cyclones 5 and 6 that are adjacent to each other on the upstream side and the downstream side, respectively, the upstream cyclone 1 -5 upper outlet 11 and downstream cyclone 2-6 inlet 10 are connected to each other via a supply facility 15 (supply tank 15a and supply pump 15b). In the separation cylinder 7 of each of the cyclones 1, 2, 3, 4, 5, 6, the inner diameter D of the swirl chamber 8a in the cylindrical portion 8 (the inner diameter D1 of the cyclone 1, the inner diameter D2 of the cyclone 2, the inner diameter D3 of the cyclone 3, The inner diameter D4 of the cyclone 4, the inner diameter D5 of the cyclone 5, and the inner diameter D6 of the cyclone 6 are smaller in the downstream cyclones 2-6 than in the upstream cyclones 1-5, so that D1>D2>D3>D4>.D5> D6 is set. When the inner diameter D of the swirl chamber 8a is reduced, the length L of the conical portion 9 of the separation cylinder 7 is also reduced.

In the processing path R between the supply facility 13 and the discharge facility 14, the raw sand-containing supply mud water A is sequentially processed by the cyclones 1, 2, 3, 4, 5, 6 as follows.
The raw sand-containing supply mud water A is introduced from the inlet 10 of the cyclone 1 into the swirl chamber 8a in the separation cylinder 7 by the supply facility 13 through the supply pipe 16 (supply path). In this separation cylinder 7, centrifugal force is applied to the supplied mud water A so that the recovered granular material B (collected sand) separated from the supplied mud water A descends and opens according to the degree of vacuum in the separation cylinder 7. The collected granule B is collected from 12 to the discharge pipe 17 (discharge path). On the other hand, the siphon tube 19 (overflow path) that can be adjusted for air supply by the air supply adjusting means 18 including an electromagnetic air valve, a stop valve, etc. is adjusted in advance before starting operation and has an appropriate vacuum pressure. Optimal classification is performed in the separation cylinder 7, and the muddy water C is discharged from the upper outlet 11 to the siphon pipe 19. When heavy metals adhere to the granules in the supplied mud water A, the heavy metals are peeled off from the granules and washed. After washing, the heavy metals are discharged together with the separated mud water C. Further, when a vacuum pressure higher than a certain level is generated in the supply pipe 16, the vacuum relief valve 20 is opened and sufficient air flows in, so that an abnormal vacuum pressure is prevented from being generated.

  The separated mud C discharged from the upper outlet 11 of the cyclone 1 to the siphon pipe 19 is supplied by the supply facility 15 through the supply pipe 16 (supply path) from the inlet 10 of the cyclone 2 to the swirl chamber 8a in the separation cylinder 7. Introduced and classified in the same manner as in the case of the cyclone 1, separated into recovered granules B and separated mud water C. Thereafter, the separated mud water C discharged from the cyclone 2 is similarly classified by the cyclone 3 and separated into the recovered granule B and the separated mud water C, and the separated mud water C discharged from the cyclone 3 is similarly classified by the cyclone 4. The separated mud water C is separated into the recovered granule B and the separated mud water C, and the separated mud water C discharged from the cyclone 5 is similarly classified by the cyclone 6 and separated into the collected granule B and the separated mud water C. Those recovered granules B are collected and reused as washing sand E. When heavy metals adhere to the granules in the separated mud water C, the heavy metals are peeled off from the granules and washed. After washing, the heavy metals are discharged together with the separated mud water C. When heavy metals are contained in the supplied mud water A and each separated mud water C, the heavy metals may remain slightly in these recovered particles B. The separated mud water C discharged from the upper outlet 11 of the cyclone 6 to the siphon pipe 19 is separated into discharged sludge F and discharged water G by the discharge facility 14. The discharged sludge F is further processed by a filter press or the like and then discarded. When heavy metals are contained in the supplied mud water A and each separated mud water C, the heavy metals are discharged together with the discharged sludge F and the drainage G.

  As described above, in each of the cyclones 1, 2, 3, 4, 5, and 6 of the processing path R, the inner diameter D of the swirl chamber 8a in the separation cylinder 7 is lower than the cyclones 1 to 5 on the upstream side. Since D1> D2> D3> D4> D5> D6 is set so as to decrease at 2 to 6, the peripheral speed in the swirl chamber 8a increases as the inner diameter D decreases, and the underflow adjusting valve 12 The diameter of the recovered granule B is smaller in the downstream cyclones 2-6 than in the upstream cyclones 1-5. Therefore, if the number of the cyclones (six cyclones 1, 2, 3, 4, 5, 6 having different inner diameters D in the embodiment) is increased, the recovery granules B having a larger diameter are sequentially recovered from the recovery granules B having a smaller diameter. can do. Therefore, the recovered granules B (washing sand E) can be efficiently recovered and reused. However, since the heavy metals are likely to remain in the collected particles B having a small diameter, the cyclone (the embodiment) is selected according to the type of the supplied mud water A to be processed so that the heavy metals remaining in the collected particles B are within the allowable range. Then, the inner diameter D and the number of six cyclones 1, 2, 3, 4, 5, 6) having different inner diameters D are determined in advance.

Next, a mud moisture class device according to a second embodiment of the present invention will be described with reference to FIGS. 2 and 4 with a focus on differences from the first embodiment.
Two supply pipes 16 branched from the upper outlet 11 of one cyclone 1 are connected to the inlets 10 of the two cyclones 2. Two supply pipes 16 branched from the upper outlets 11 of the two cyclones 2 are connected to the inlets 10 of the three cyclones 3. Two supply pipes 16 branched from the upper outlets 11 of the three cyclones 3 are connected to the inlets 10 of the four cyclones 4. Three supply pipes 16 branched from the upper outlets 11 of the four cyclones 4 are connected to the inlets 10 of the nine cyclones 5. Three supply pipes 16 branched from the upper outlets 11 of the nine cyclones 5 are connected to the inlets 10 of the nine cyclones 6. The upper outlets 11 of the 19 cyclones 6 are each connected to a discharge facility 14. Therefore, in this mud moisture class apparatus, a plurality (19) of processing paths in which the cyclones 1, 2, 3, 4, 5, 6 are arranged in parallel between the supply facility 13 and the discharge facility 14 in the same manner as in the first embodiment. It consists of R. Incidentally, if the inner diameter D of the cyclones 1, 2, 3, 4, 5, 6 is reduced, the amount of processing is also reduced, so the number of cyclones 1, 2, 3, 4, 5, 6 having the smaller inner diameter D is increased. .

Next, a mud moisture class device according to a third embodiment of the present invention will be described with reference to FIGS. 3 and 4 with a focus on differences from the first embodiment.
Cyclone units U1, U2, U3, U4, U5, and U6 are juxtaposed in the processing path R between the supply facility 13 and the discharge facility 14. The cyclone unit U 1 includes one cyclone 1, the supply facility 13 is connected to the carry-in port 21, the inlet 10 of the cyclone 1 is connected to the carry-in port 21 through the supply pipe 16, and the cyclone is connected to the carry-out port 22. 1 is connected by a siphon tube 19. In the cyclone unit U2, two cyclones 2 are provided, and a carry-out port 22 of the cyclone unit U1 is connected to the carry-in port 23, and an inlet 10 of each cyclone 2 is supplied to the carry-in port 23 via a supply facility 15. The upper outlet 11 of each cyclone 2 is connected to the carry-out outlet 24 by a siphon pipe 19. In the cyclone unit U3, three cyclones 3 are provided, the carry-out port 24 of the cyclone unit U2 is connected to the carry-in port 25, and the inlet 10 of each cyclone 3 is supplied to the carry-in port 25 via the supply facility 15. The upper outlet 11 of each cyclone 3 is connected to the carry-out outlet 26 by a siphon pipe 19. In the cyclone unit U4, four cyclones 4 are provided, the carry-out port 26 of the cyclone unit U3 is connected to the carry-in port 27, and the inlet 10 of each cyclone 4 is supplied to the carry-in port 27 via the supply facility 15. The upper outlet 11 of each cyclone 4 is connected to the carry-out outlet 28 by a siphon pipe 19. In the cyclone unit U5, nine cyclones 5 are provided, the carry-out port 28 of the cyclone unit U4 is connected to the carry-in port 29, and the inlet 10 of each cyclone 5 is supplied to the carry-in port 29 via the supply facility 15. The upper outlet 11 of each cyclone 5 is connected to the carry-out port 30 by a siphon tube 19. In the cyclone unit U6, 19 cyclones 6 are provided, and the carry-out port 30 of the cyclone unit U5 is connected to the carry-in port 31, and the inlet 10 of each cyclone 6 is supplied to the carry-in port 31 via the supply facility 15. The upper outlet 11 of each cyclone 6 is connected to the carry-out port 32 by a siphon tube 19, and the discharge facility 14 is connected to the carry-out port 32. In each cyclone unit U1, U2, U3, U4, U5, U6, the underflow regulating valve 12 of each cyclone 1, 2, 3, 4, 5, 6 is connected to the recovery port 33, and the recovery port 33 A discharge pipe 17 is connected to the pipe.

It is a system diagram showing a mud moisture class device concerning a 1st embodiment. It is a system diagram which shows the mud moisture class apparatus concerning 2nd Embodiment. It is a system diagram which shows the mud moisture class apparatus concerning 3rd Embodiment. It is a schematic sectional drawing which shows each cyclone concerning each embodiment.

Explanation of symbols

  1, 2, 3, 4, 5, 6 ... cyclone, 7 ... separation cylinder, 8a ... swirl chamber, 10 ... inlet, 11 ... upper outlet, 12 ... underflow regulating valve (lower outlet), 13 ... supply equipment ( Pre-treatment mud supply port), 14 ... discharge facility (post-treatment muddy water discharge port), 21, 23, 25, 27, 29, 31 ... carry-in port, 22, 24, 26, 28, 30, 32 ... carry-out port, 33 ... recovery port, U1, U2, U3, U4, U5, U6 ... cyclone unit, R ... treatment path, A ... supply muddy water, B ... recovered granules, C ... separated muddy water, D ... inner diameter of swirl chamber.

Claims (3)

The supply mud introduced into the swirl chamber in the separation cylinder from the inlet is separated from the upper outlet at the upper part of the separation cylinder, and the particles are recovered from the lower outlet at the lower part of the separation cylinder; A plurality of cyclones to be separated are arranged in parallel in one or more treatment paths between the pre-treatment mud water supply port and the post-treatment mud water discharge port, and among the cyclones in this treatment path, The pre-treatment mud supply port is connected to the inlet, and the post-treatment mud discharge port is connected to the uppermost outlet of the most downstream cyclone. In both cyclones adjacent to each other upstream and downstream, the upstream cyclone The upper outlet and the downstream cyclone inlet are connected to each other, and each cyclone is processed so that the particle diameter recovered from the lower outlet is smaller in the downstream cyclone than in the upstream cyclone. Mud water classifier being characterized in that disposed on the road. In each cyclone of the treatment path, the inner diameter of the swirl chamber in the separation cylinder is made smaller in the cyclone on the downstream side than the cyclone on the upstream side, so that the diameter of the particles collected from the lower outlet is the upstream cyclone. The mud moisture class device according to claim 1, wherein the mud moisture class device is made smaller in a cyclone on the downstream side. The supply mud introduced into the swirl chamber in the separation cylinder from the inlet is separated from the upper outlet at the upper part of the separation cylinder, and the particles are recovered from the lower outlet at the lower part of the separation cylinder; A plurality of cyclone units having one or more cyclones to be separated into two or more are provided, and each cyclone unit is juxtaposed in the treatment path between the pre-treatment mud water supply port and the post-treatment mud water discharge port. Among the cyclone units, the pre-treatment mud supply port is connected to the carry-in port of the most upstream cyclone unit, and the post-treatment mud discharge port is connected to the carry-out port of the most downstream cyclone unit. In both cyclone units adjacent to each other, the upstream outlet of the cyclone unit and the downstream inlet of the cyclone unit are connected to each other. In the cyclone unit, the inlet of the cyclone is connected to the inlet of the cyclone and the upper outlet of the cyclone is connected to the outlet of the cyclone. In each cyclone unit, the diameter of the particles recovered from the recovery port connected to the lower outlet of the cyclone is upstream. A mud moisture class device characterized in that each cyclone unit is arranged so as to be smaller in a cyclone unit on the downstream side of the cyclone unit.

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