KR101666656B1

KR101666656B1 - Apparatus for transferring slurry of multistage lifting pump apparatus for mining mineral

Info

Publication number: KR101666656B1
Application number: KR1020150045059A
Authority: KR
Inventors: 윤치호; 김영주; 우남섭; 이동길
Original assignee: 한국지질자원연구원
Priority date: 2015-03-31
Filing date: 2015-03-31
Publication date: 2016-10-14
Also published as: KR20160116799A

Abstract

The present invention relates to a slurry transfer apparatus for a multi-stage transfer pump apparatus for extracting minerals for efficiently transferring slurry in a solid-liquid mixture state including minerals to the ground,
The slurry transfer apparatus of the multi-stage transfer pump apparatus may further include: a slurry intermediate reservoir having a feeder supply line; A first transfer line connected to the first pump and transferring the slurry stored in the light collecting bath to the slurry intermediate storage; A screw feeder column having a plurality of screw feeders forming a flow path selectively with the feeder feed line and having a front end connected to the slurry intermediate storage; A first direction switching valve that is switched to form a flow path between any one of the screw feeders and the feeder supply line; An open / close valve column formed at each of the rear ends of the plurality of screw feeders, the open / close valve column including opening valves for opening / closing the rear end of each screw feeder depending on whether the flow path is formed with the feeder supply line; A second transfer line connected to the second pump and transferring the slurry discharged from the rear end of the screw feeder having the feeder supply line and the flow path formed therein to the slurry storage tank; A second direction switching valve installed on the second transfer line; And a third conveyance line connected to the second direction switching valve in parallel with the second conveyance line to selectively flow the slurry discharged from the screw feeder according to the operation of the second direction switching valve Became,
When the screw feeder is clogged, the slurry is transferred to the other screw feeder, thereby providing the effect of allowing the minerals to be collected without stopping the transfer of the slurry when clogging occurs.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slurry transfer apparatus for multi-stage transfer pump apparatus for extracting minerals,

The present invention relates to a transfer pump apparatus for transferring minerals in the form of slurry to the ground in the form of slurry. More specifically, the present invention relates to a transfer pump apparatus for transferring minerals in the form of a slurry, The present invention relates to a slurry transfer apparatus for a multi-stage transfer pump apparatus for extracting minerals for efficient transfer to the ground.

It has been found that mineral resources such as manganese, cobalt, nickel and copper exist in a large amount in the solid state of oxides or emulsions on the seabed, and efforts for mining them and transporting them to the ground have been made in many aspects.

As a result of this effort, Korean Patent Laid-Open No. 10-2010-0085776 (published on June 29, 2010, precedent document 1) formed a dimple on the periphery of a light pipe which constitutes a system for mining undersea manganese nodules, Which is a dimple-shaped light pipe for extracting deep-sea mineral resources, which reduces drag due to deep-sea currents.

Korean Patent Laid-Open No. 10-2011-0101024 (published on Mar. 15, 2011, precedent document 2) shows that the discharge pipe on the side for transporting the submarine resource mineral picked up or mined is tightly coupled with the hop pipe on the receiving side To prevent the escape or vibration of the suction pipe and the discharge pipe during the transfer of seawater and resource ore by pressurization, thereby smoothly transferring ores or mined resource ore "Fixing of the resource ore intake pipe to the discharge pipe in the submarine resource ore transfer system &Quot;

Korean Patent No. 10-1130639 (published on Mar. 20, 2012, precedent document 3) discloses a method for mining undersea minerals by mining rollers, minerals rejecting, conveying passages and hydraulic suction pumps, A mining robot of a deep sea mineral.

Korean Patent No. 10-1328504 (Laid-Open Publication No. 4, Aug. 28, 2013, Aug. 28, 2013) discloses a method of installing a seawater supporting tank on a seabed surface using a crane and a door frame, A submarine array and a mining method of a light-harvesting system "in which submarine mineral can be collected by forming a slurry suction passage by docking with a bottom surface supporting tank.

However, when the above-mentioned conventional techniques are used to store mineral resources in the condensing tank from the deep sea through a miner and pumped them from the condensing tank to the ground, they are in the form of a slurry in which nodules and seawater are mixed, Which makes it difficult to transport them to the ground.

Further, the prior art also has a problem in that, when the conveyance pipe is clogged by rocks, nodules, or the like, it is not possible to collect the same minerals that perform the work of removing foreign matter.

Prior Art 1: Korean Patent Laid-Open No. 10-2010-0085776 (Published on June 29, 2010) Prior Art 2: Korean Patent Application No. 10-2011-0101024 (Published on September 15, 2011) Prior Art 3: Korean Patent No. 10-1130639 (disclosed on Mar. 20, 2012) Prior Art 4: Korean Patent No. 10-1328504 (Published on Aug. 28, 2013)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a method and apparatus for recovering mineral resources from a deep sea by means of a minitator, The slurry transfer of the multistage transfer pump device for mining, which enables the pumping operation to continue with the slurry containing minerals even while the foreign matter is being removed, And an object of the present invention is to provide a device.

In order to accomplish the above object, the present invention provides a slurry transfer apparatus for a multi-stage transfer pump apparatus for extracting minerals, comprising: a slurry intermediate storage vessel having a feeder supply line; A first transfer line connected to the first pump and transferring the slurry stored in the light collecting bath to the slurry intermediate storage; A screw feeder column having a plurality of screw feeders forming a flow path selectively with the feeder feed line and having a front end connected to the slurry intermediate storage; A first direction switching valve that is switched to form a flow path between any one of the screw feeders and the feeder supply line; An open / close valve column formed at each of the rear ends of the plurality of screw feeders, the open / close valve column including opening valves for opening / closing the rear end of each screw feeder depending on whether the flow path is formed with the feeder supply line; A second transfer line connected to the second pump and transferring the slurry discharged from the rear end of the screw feeder having the feeder supply line and the flow path formed therein to the slurry storage tank; A second direction switching valve installed on the second transfer line; And a third conveyance line connected to the second direction switching valve in parallel with the second conveyance line to selectively flow the slurry discharged from the screw feeder according to the operation of the second direction switching valve .

The slurry transfer apparatus of the multi-stage transfer pump apparatus for extracting minerals having the above-described structure may further comprise a cleaning device having a spray nozzle for removing slurry adhering to the screw feeder.

The slurry transfer device for a multi-stage transfer pump apparatus for extracting minerals having the above-described structure may further include a slurry transferring device for transferring the minerals to the upstream side of the screw feeder to detect the nodal share of the nodules fed to the screw feeder Screw feeder nodal occupancy rate sensors mounted on the screw feeder; A screw feeder rear end nosepiece occupancy rate sensor formed on an upstream side of the second direction switching valve for detecting a share of nodules discharged from the screw feeder for controlling the direction of the second direction switching valve; And controlling the first direction switching valve to form a flow path between a screw feeder having a minimum nodule occupancy rate and a feeder supply line according to a detection signal of the nodule occupancy rate sensors of the screw feeder front end, And controlling the second direction switching valve to transfer the slurry discharged from the screw feeder to the third conveyance line when the nodule occupancy rate detected by the second conveyance line exceeds a predetermined size.

The control unit is configured to operate the first motor for operating the first pump and the second motor for operating the second pump at a constant rotation rate ratio.

The slurry transfer apparatus of the multi-stage transfer pump apparatus for extracting minerals having the above-described structure may further include an injection pump installed in the second transfer line to add a slurry transferring force in the second transfer line .

The present invention having the above-described structure is characterized in that when the screw feeder is constituted in a multistage and the mineral resources are stored in the light collecting tank through the minuter from the deep sea and then pumped from the light collecting tank to the ground, When the slurry is plugged, the slurry is pumped using another screw feeder, so that the pumping operation for the slurry containing the minerals can be continued even while the foreign matter of the clogged screw feeder is removed, thereby improving the collection efficiency of the submarine mineral .

The present invention is also directed to a slurry transfer apparatus for transferring slurry through a third transfer line to a third location by operating a directional control valve through a control unit when there is an abnormality in the transfer of the slurry through the second transfer line, Thereby providing an effect of extending the lifetime of the conveying device.

Further, the present invention provides an effect that the clogging of the conveyance pipe by the slurry by the injection pump is remarkably reduced, and the clogging problem is easily solved by the injection nozzle when the screw feeder is clogged.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a slurry transfer apparatus 1 of a multistage transfer pump apparatus for mining mineral according to an embodiment of the present invention; FIG.
2 is a schematic structural view of a screw feeder row 130 in the slurry transfer device 1. FIG.
3 is a functional block diagram of the slurry transfer device 1. Fig.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing embodiments of the present invention.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The embodiments according to the concept of the present invention can be variously modified and can take various forms, so that specific embodiments are illustrated in the drawings and described in detail in the specification or the application. It should be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms of disclosure, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ",or" having ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

1 is a schematic structural view of a slurry transfer apparatus 1 of a multi-stage transfer pump apparatus for mining mineral according to an embodiment of the present invention, and FIG. 2 is a schematic view of a screw feeder column 130 in the slurry transfer apparatus 1, FIG. 3 is a functional block diagram of the slurry transfer device 1. As shown in FIG.

1, the slurry transfer apparatus 1 includes a first transfer line 110, a slurry intermediate storage tank 120, a first directional control valve 160a, a screw feeder column 130, A second transfer line 150, a second direction switching valve 160b and a third transfer line 170. The cleaning unit 140 includes a cleaning unit 140a and a second cleaning unit 140b.

The lower end of the first transfer line 110 may be connected to the light collecting tank 102. In the light collecting tank 102, a slurry which is a mixture of a solid and a liquid containing nodules condensed at the deep sea bed is stored. The first directional control valve 160a and the second directional control valve 160b constitute a directional control valve train 160.

Referring to FIG. 1, the first transfer line 110 is provided with a first pump P1. The rear end of the first transfer line 110 is connected to the slurry intermediate reservoir 120. The slurry intermediate reservoir 120 is connected to the front ends of each of the screw feeder rows 130 via a feeder feed line 150a. The feeder feed line 150a is provided with a first direction switching valve 160a for selectively forming a flow path between one of the screw feeders and the feeder feed line 150a.

Referring to FIGS. 1 and 2, the screw feeder row 130 includes a first screw feeder 130a and a second screw feeder 130b arranged in parallel. As described above, a plurality of screw feeders may be arranged in parallel. Each of the screw feeders is connected to a slurry intermediate reservoir 120 such that the slurry stored in the slurry intermediate reservoir 120 is introduced. The screw feeders have a screw shaft 134 and a screw 132 mounted on the screw shaft 134 and rotating together with the screw shaft 134. On the rear end of the screw feeders, on / off valves are provided to shield the feeder feeder line 150a and the flow passages of the screw feeders which are not formed with the flow path. In addition, the front end portions of the screw feeders are provided with the screw feeder unevenness occupancy rate sensors for measuring the occupancy of the masses to be transferred to the screw feeders, respectively. 2, a first opening / closing valve 135a and a first nodal occupancy rate sensor 180a are provided at the rear end of the first screw feeder 130a, and a second opening / closing valve 135a and a second nodule occupancy rate sensor 180b are provided at the rear end of the second screw feeder 130b. The valve 135b and the second nodal occupancy percentage sensor 180b are sequentially installed along the flow path.

The slurry stored in the light-condensing tank 102 is transferred to the slurry intermediate storage tank 120 through the first transfer line 110 as the first pump P1 operates. The slurry stored in the slurry intermediate storage tank 120 is transferred through the screw feeder having the feeder feed line 150a and the flow path formed by the first direction switching valve 160a.

Referring to FIG. 2, a cleaning device 140 is installed in the screw feeder row 130. The cleaning apparatus 140 includes an injection nozzle 142 and an injection nozzle tube 141. A plurality of injection nozzles 142 may be provided. The injection nozzle 142 injects a high pressure gas or liquid into the first screw feeder 130a and the second screw feeder 130b constituting the screw feeder row 130 so that the first screw feeder 130a and the second screw To remove the slurry adhered to the feeders 130b. The injection nozzles 142 may be installed at regular intervals, and the intervals may be equal to or smaller than the pitch of the screws 132. [

Referring to FIGS. 1 and 2, the second transfer line 150 is connected to the rear end of the screw feeders such that the lower end of the second feed line 150 receives the slurry discharged from the rear end of the screw feeders constituting the screw feeder row 130. The second transfer line 150 is provided with a second pump P2. The upper end of the second transfer line 150 is connected to the slurry reservoir 104. The slurry discharged from one of the screw feeders in the screw feeder row 130 is transferred to the slurry reservoir 104 through the second transfer line 120 as the second pump P2 is operated. As shown in FIG. 1, the second transfer line 150 may be equipped with an injection pump (PI) that injects high-pressure water in the transfer direction to add the transfer force of the slurry to be transferred.

Referring to FIG. 2, a second direction switching valve 160b is installed at the rear end of the second conveying line 150. As shown in FIG. The second directional control valve 160b is connected to the front end of the third conveying line 170. The third conveying line 170 is connected to the second conveying line 150 in parallel. This is for selectively introducing the slurry discharged from the screw feeder row 130 into the third transfer line 170 according to the operation of the second directional control valve 160b. That is, the slurry discharged from the screw feeder in accordance with the operation of the directional control valve line 160 is transferred to the light-condensing tank 102 or the third place through the third transfer line 170 instead of the second transfer line 150 .

Referring to FIG. 2 again, a third nodal occupancy rate sensor 180c may be provided between the second directional control valve 160b and the screw feeder row 130. [ The third nodule occupancy rate sensor 180c is for sensing the nodule occupancy rate of the minerals contained in the slurry discharged to the front end of the screw feeder row 130. [

The first through third nodal occupancy rate sensors 180a, 180b and 180c constitute the nodal occupancy ratio sensor row 180. [

Referring to FIG. 3, an embodiment according to the present invention has a control unit 190.

3, the control unit 190 is provided with a nosepiece occupancy rate sensor array 180 and first and second directional control valves 180a, 180b and 180c, which are constituted by first to third nodal occupancy rate sensors 180a, 180b and 180c, A first motor 201 and a second motor 202 for driving the first pump P1 and the second pump P2, a first cleaning device 140a, 2 cleaning device 140b is connected to the cleaning device 140b. When the nodule occupancy rate of the slurry discharged from the screw feeder of the screw feeder row 130 is determined by the signal from the nodule occupancy rate sensors of the nodule occupancy rate sensor row 180 to exceed the predetermined size, The second directional control valve 160b of the valve train 160 is operated to feed the slurry discharged from the screw feeder to the light collecting tank 102 or the third place through the third transfer line 170. [

3, the control unit 190 includes a first motor 201 for operating the first pump P1 (see FIG. 1) and a second motor 202 for operating the second pump P2 (see FIG. 2) . The controller 190 operates the first motor 201 and the second motor 202 at a constant rotation ratio for smooth transfer of the slurry through the first transfer line 110 and the second transfer line 150, The rotation rate ratio is convertible. For example, the rotation rate ratio of the first motor 201 and the second motor 202 can be changed by the nodal occupancy rate sensed by the signal from the nodal occupancy rate sensor row 180. [

3, the controller 190 includes a cleaning device 140 including a first cleaning device 140a and a second cleaning device 140b. The cleaning device 140 is installed in the screw feeder columns 130 under the control of the controller 190. Lt; RTI ID = 0.0 > slip < / RTI >

In an embodiment of the present invention, when there is an abnormality in the conveyance of the slurry through the second conveyance line 150, the second directional control valve 160b is operated through the control unit 190 to convey the slurry to the third conveyance line 170 To the light-condensing tank 102 or to the third place, thereby protecting the slurry transferring apparatus.

In addition, the embodiment of the present invention has an advantage that the slurry adhered to the first screw feeder 130a and the second screw feeder 130b can be removed by having the cleaning devices including the injection nozzle 142 .

The first motor 201 and the second motor 202 may be connected to the control unit 190 to control the rotation speed of the first motor 201 and the second motor 202, It is easy to control the feed amount of nodule.

In addition, one embodiment of the present invention can measure and control the occupancy rate of nodules suitable for nodule transport by installing nodule occupancy rate sensors between the directional control valve train 160 and the screw feeder row 130.

In addition, the present invention provides a plurality of screw feeders to which a flow path is selectively connected, so that, when the screw feeder being slurry is clogged by the slurry feeder, the slurry is fed by changing the flow path to the unscrewed screw feeder, There is an advantage that the efficiency of harvesting of minerals can be improved.

1: Slurry transfer device
P1: first pump P2: second pump
102: condensing tank 104: slurry storage tank
110: first transfer line 120: slurry intermediate storage tank
130: screw feeder column 135a: first screw feeder
135b: second screw feeder 132: screw
134: screw shaft 140: cleaning device
141: jet nozzle 142: jet nozzle
150: second feed line 150a: feeder feed line
160a: first direction switching valve 160b: second direction switching valve
160: Directional switching valve row 170: Third transfer line
180: Nodule occupancy rate sensor row 180a: First nodule occupancy rate sensor
180b: second nodal occupancy rate sensor 180c: third nodal occupancy rate sensor
190: control unit 201: first motor
202: second motor

Claims

A slurry intermediate reservoir having a feeder feed line;
A first transfer line connected to the first pump and transferring the slurry stored in the light collecting bath to the slurry intermediate storage;
A screw feeder column having a plurality of screw feeders forming a flow path selectively with the feeder feed line and having a front end connected to the slurry intermediate storage;
A first direction switching valve that is switched to form a flow path between any one of the screw feeders and the feeder supply line;
An open / close valve column formed at each of the rear ends of the plurality of screw feeders, the open / close valve column including opening valves for opening / closing the rear end of each screw feeder depending on whether the flow path is formed with the feeder supply line;
A second transfer line connected to the second pump and transferring the slurry discharged from the rear end of the screw feeder having the feeder supply line and the flow path formed therein to the slurry storage tank;
A second direction switching valve installed on the second transfer line; And
And a third conveyance line connected to the second direction switching valve in parallel with the second conveyance line to selectively flow the slurry discharged from the screw feeder according to the operation of the second direction switching valve Wherein the slurry conveying device is a multi-stage conveying pump device.

The method according to claim 1,
And a cleaning device including an injection nozzle for removing the slurry adhered to the screw feeder.

The method according to claim 1,
A screw feeder front end nodal occupancy rate sensors mounted on respective front ends of the screw feeder for detecting a nodular occupancy rate to be transferred to the screw feeder for direction switching control of the first directional control valve;
A screw feeder rear end nose occupancy rate sensor formed upstream of the second direction switching valve for detecting a nodule occupancy rate discharged from the screw feeder for direction switching control of the second direction switching valve; And
Controls the first direction switching valve so as to form a flow path between a screw feeder having a minimum nodal occupation ratio and a feeder supply line according to a detection signal of the nodal occupancy percentage sensors of the screw feeder front end, And a control unit for controlling the second direction switching valve to transfer the slurry discharged from the screw feeder to the third transfer line when the nodule occupancy rate detected by the multistage transfer pump is greater than a predetermined value. Device for slurry transfer.

4. The apparatus of claim 3,
Wherein the first pump for operating the first pump and the second motor for operating the second pump are operated at a constant rotation rate ratio.

The method according to claim 1,
Further comprising an injection pump installed at the second transfer line to add a slurry transfer force at the second transfer line.