CN2253391Y - Hydraulic composite ore-collecting device for deep-sea polymetallic nodule mining - Google Patents

Abstract

The utility model relates to a hydraulic combined type ore collecting device for exploiting deep-sea polymetallic nodules. The device comprises a collecting part and a conveying part, wherein two rows of nozzles connected with an ore collecting submersible pump are arranged, a flow guide cover inclined to the rear is arranged above the nozzles to form the collecting part, an outlet of the flow guide cover is connected with a material suction port of a conveying ejector, a material discharge port of the flow guide cover is connected with a lifting system through a hose, and the inclined material discharge port of the nozzle of the ejector is connected with the conveying submersible pump through a water supply pipe. The utility model discloses a biggest characteristics have replaced scraper conveyor with carrying the ejector, do not have the rotary motion spare to will gather conveyor and supply ore deposit to the hoist system and unite two into one, the structure is simplified, and the operational reliability is strong.

Description

Hydraulic composite ore-collecting device for deep-sea polymetallic nodule mining

The utility model relates to a device for mining deep-sea polymetallic nodules, in particular to a hydraulic compound ore collecting device.

There are abundant polymetallic nodules in the surface layer of sediments on the bottom of oceans in the world, which contain many kinds of metals and have high economic mining value. Since the 1970s, the ore-collecting devices that have been tested and studied mainly fall into three categories: mechanical, hydraulic and compound. The structure of the mechanical ore collecting device is more complicated than that of the hydraulic type. The digging teeth are easily damaged, and there are too many sediments excavated. It is very difficult; the hydraulic ore collecting device uses the negative pressure generated by the jet to suck the nodule ore, and its disadvantage is that it collects a large amount of seabed sediments, and the change of the height of the ore collecting port from the seabed has a great impact on the ore collecting efficiency; the existing double The composite ore-collecting device of nozzle collection and inclined chain-plate conveying overcomes the shortcomings of the above two kinds of ore-collecting devices, but the chain-plate or scraper conveying mechanism has many rotating moving parts, complex structure, and low operational reliability.

The purpose of this utility model is to provide a high-efficiency ore-collecting device that collects nodule ore from the seabed with the least amount of sea mud, minimal damage to the seabed sediment layer, simple structure, reliable operation and low failure rate.

The technical scheme of the utility model is: it includes two parts of collecting and conveying, in which two rows of nozzles connected with the ore-collecting submersible pump are arranged, the jets of the two rows of nozzles are relatively oblique to the seabed, and above the nozzles, there is an oblique rear The diversion cover, the outlet of the diversion cover is connected with the suction port of the conveying jet, the discharge port is connected to the lifting system with a hose, the nozzle of the jet is inclined to the discharge port, and the water supply pipe is connected with the conveying submersible pump .

In the above technical scheme, the seabed nodule ores rush away from the seabed sediments and move upwards under the action of the jet flow impact force of the double rows of nozzles and the formed rising water. As the device moves forward in translation, it is guided to the suction port of the conveying jet through the guide cover. , the high-speed water jet of the ejector nozzle creates a negative pressure in the suction pipe, sucks the mixture of nodule ore and water into the suction pipe from the outlet of the shroud, and sends it through the hose under the action of the increased pressure due to the conversion of the jet velocity. Go to the ore supply bin of the lifting system.

The mining device of the utility model not only has the least damage to the seabed sediment layer, hardly carries sediment, the device does not contact the seabed and has small movement resistance, and will not collect larger rocks. The most important feature is that due to The scraper conveying mechanism is replaced by a conveying jet, there is no rotating moving part, and the collecting and conveying mechanism of the ore collecting device is combined with the conveying system from the ore collecting machine to the lifting system for ore supply to the ore bin, so that the ore collecting The structure of the device is greatly simplified, so as to achieve high reliability, long-term continuous high-efficiency ore collection.

Describe in detail below in conjunction with the accompanying drawings of the embodiments.

First, the drawings will be described.

Fig. 1 represents the structural diagram of the utility model, is a kind of embodiment;

Fig. 2 represents the second embodiment of the present utility model;

Fig. 3 shows three different structures of the delivery jet nozzle, wherein 3a is a double-sided nozzle type; 3b is an annular nozzle type; 3e is a center nozzle type.

Fig. 4 shows the embodiment that the ore collecting device and the hoisting system of the utility model jointly operate to mine polymetallic nodule ores in the deep sea.

In the embodiment shown in Fig. 1, by collecting ore submersible pump (not drawing among the figure), double-row nozzle (12), (13), deflector cover (15) and buffer storehouse (16) form hydraulic collection System, according to the ore-collecting movement direction (3), two rows of spray nozzles (12), (13) separated by a certain distance are set near the seabed (1) at the front, and the rear bottom of the rear row of nozzles (13) is fixedly suspended with Extend to the rubber baffle plate (14) two rows of nozzles (12), (13) of the seabed (1) to link to each other with the discharge port of the ore-collecting submersible pump with a pipeline, and a rearward valve is arranged above the nozzles (12), (13). The outlet of the inclined guide cover (15) is connected to a buffer storehouse (16), and the upper part of the buffer storehouse (16) is provided with a mesh (17). The jet conveying system is made up of conveying submersible pump (not shown in the figure), ejector (18) and conveying hose (23), and the suction port (19) of ejector (18) links to each other with buffer storehouse (16), and its The discharge port (22) is connected to the ore supply bin (8) of the lifting system near the seabed (1) with a flexible pipe (23), and the ejector nozzle (21) is inclined to the discharge port (22), and the water supply pipe ( 20) Connected with the conveying submersible pump.

The design principle and working process are as follows: start the ore-collecting submersible pump, and its high-flow low-pressure water is ejected obliquely toward the seabed (1) through two rows of nozzles (12, 13), so that nodule ore (2) is washed away from the seabed (1) The sediment is washed away, and is lifted under the action of the formed rising water flow. As the ore collecting device moves forward (3), it is guided to the buffer bin (16) through the diversion cover (15), and passes through the upper part of the buffer bin (16). The mesh (17) removes the sediment carried. The effect of rubber baffle plate (14) is, stops the rear nozzle (13) place current to flow out backward, guarantees that double row nozzle (12,13) can form rising current. The high-pressure water discharged from the conveying submersible pump is sent into the nozzle (21) through the pipeline (20), and a high-speed jet is generated to generate a negative pressure in the suction pipe (19), sucking the nodule ore (2) in the buffer chamber (16), And mix with jet water in the discharge pipe (22), during the mixing process, the jet water transfers a part of its kinetic energy to the sucked nodule ore (2), and the pressure in the discharge pipe (22) increases with the speed conversion, here Under pressure, the nodule ore (2) is transported to the seabed ore supply bin (8) of the lifting system through the hose (23).

Fig. 2 represents another kind of embodiment of the present utility model, promptly the outlet of flow deflector (15) is directly linked to each other with the suction pipe (19) of ejector (18), cancels buffer storehouse (16) in Fig. 1 embodiment ). Instead, the mesh of the ore supply bin (8) close to the seabed is utilized to further remove the carried sediments by using the lifting system (9), so that the structure of the ore collecting device is simpler.

Fig. 3 shows three structural forms of the conveying jet (18) used in the hydraulic compound ore collecting device (4) shown in Fig. 1 and Fig. 2 . Figure 3a is a double-sided nozzle type, there is no diffusion pipe section, the diameter of the conveying pipe remains unchanged, and it has the advantages of simple structure, low slurry flow resistance, and wear resistance. Fig. 3b is the annular nozzle type, and the nozzles are distributed along the circumference of the suction pipe (19), and the jet flow is uniform, which is conducive to improving the conveying efficiency. Figure 3e is the central nozzle type. Annular nozzle type among the figure and center nozzle type ejector all have diffusion pipeline (24), also can be made into the structural form that does not have the diffusion pipe section.

Claims (4)

1, a kind of deep sea polymetallic nodule exploitation waterpower combined type Ji Kuang device, comprise and gather and carry two parts, it is characterized in that being provided with the nozzle (12) that two rows link to each other with collection ore deposit submersible pump, (13), two row's nozzles (12), (13) the oblique relatively seabed of jet, in nozzle (12), (13) top is provided with the kuppe (15) at oblique rear, the outlet of kuppe (15) is connected with the material sucking port (19) of carrying ejector (18), its discharging opening (22) is received Hoisting System with flexible pipe (23), the oblique discharging opening of ejector nozzle (21) (22) is connected with carrying submersible pump with feed pipe (20).

2, deep sea polymetallic nodule exploitation waterpower combined type Ji Kuang device according to claim 1 is characterized in that at kuppe (15) and carries being surge bunker (16) between the ejector (18), and the top of surge bunker (16) is provided with mesh (7).

3, deep sea polymetallic nodule exploitation waterpower combined type Ji Kuang device according to claim 1 is characterized in that fixedly being hung with the rubber baffle (14) that is extended down to seabed (1) in the back lower place of back row's nozzle (13).

4, deep sea polymetallic nodule exploitation waterpower combined type Ji Kuang device according to claim 1 is characterized in that carrying ejector (18) to comprise bilateral nozzle formula, ring-type nozzle formula and three kinds of form of structure of center nozzle formula.

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