The invention relates to the mining industry and can be applied in the extraction of placer minerals from underwater deposits. Can be used in other industries, for example in the construction industry for production of building materials, for the production of dredging, dredging, etc. Groundsamine device for the extraction of minerals from underwater deposits includes a housing with a suction inlet and scour nozzles communicated with the pressure cavity. It is provided with a rigidly mounted in the housing cylinder with scour nozzles communicated with the pressure cavity and located in the suction pipe. Nozzle scour nozzles on the head facing counter to the direction of movement of the pulp in the suction pipe. The head protrudes outside of the inlet tube. The device provides suction pulp in the area of return flows and this ensures the intensification of the process of extraction of minerals from the pan area of erosion. Eliminates the turbidity of the reservoir, the integrity and structure of the surface layers of the seabed. Increases reliability of the device.1 C.p. f-crystals, 1 Il.
A device for the extraction of non-cohesive soils with mnogonitochnoy hydraulic baking powder with which the ring structure Weinered [S. P. gardeners. The dredging excavation of soils. - M.:Stroiizdat. - 1986. - 256 S.]. In this design, the nozzle is placed on the annular manifold covering the suction tip. This Ripper of a jet directed at an angle of 30-40° to the plane of the ring towards the center of the suction tip and ring mounted on a ball joint, which is designed to adjust to any misalignment parallel to the surface of the face under the action of the stop on the ground. These hydraulic rippers applicable in the construction dredging and mining.
In the laboratory of dredging ZNIIS was created a working body with a hydraulic powder, representing a ring, enclosing the suction tip is made of a pipe with a diameter of 200 mm [D. C. Roshchupkin. Development of soil suction shells. - M.: Transport. - 1969. - 135 C.]. The ring has eight nozzles, which given a slight inclination so that the expiring of these jets in the future directed at one point, lying in front of the suction tip on its axis. Issuing from the particles, weighed, and running to the mouth of the suction tip of the water jet was picked up and carried away in the sucker. Not less effective hydraulic powder in the development of fractured layers of porphyrite, found in useful ballast deposits. Jet baking powder was hit in the cracks, expanded them, were removed and weighed records of porphyrite. Layer clay jet was ramalhais to fine sediment, some of which were pushing from the suction zone and settled to the bottom of the outside of the face, and some spilled on the map of reclamation, was discharged along with the water.
Known groundsamine device design N. M. Zimakowska, who recommended and implemented almost teamwork pressure jets and jet Elevator [S. P. gardeners. The dredging excavation of soils. - M.: Stroiizdat. - 1986. - 256 S.]. Jetting Assembly part has paleobiology the trunk of a giant head with four nozzles - one vertical and three horizontal, spaced angle 120° with respect to each other. The receiving hole is located below the horizontal nozzles jetting.
However, all of these analogues has certain common disadvantages:
- protivopoloznymi injectors, prevents the movement of suspended mineral particles to the intake pipe, which leads to reduction in technical performance;
the soil samples directly from the bottom surface, which leads to darkening of the reservoir, the destruction of the bottom surface, i.e., to the violation of environmental environment.
Closest to the claimed invention (prototype) is grantsalert consisting of a pear-shaped body, inlet pipe, a suction pipe, a pressure cavity, scour nozzles [S. P. gardeners. The dredging excavation of soils. - M.: Stroiizdat. - 1986. - 256 S.]. This grantsalert were effective in the development of non-cohesive soils due to its hydraulically streamlined shape. The result of this suction head; it is minerals, separated from face by a hydraulic Ripper, is extracted in a mixture with water directly from the zone of erosion, which is located on the bottom surface.
However, the disadvantage of this device is the implementation of the suction in the area of the opposing streams of water flowing from scour nozzles to soil erosion, and pulp that is absorbed into the receiving hole grantsearch that entails reducing proizvoditel by introducing head with scour nozzles in the suction pipe is sucking the pulp in the area of return flows and due to this intensification of the process of excavation of the pan zones of erosion, the exception of the turbidity of the reservoir, the integrity and structure of the surface layers of the seabed.
This objective is achieved in that famous groundsamine device for the extraction of minerals from underwater deposits, comprising a housing with a suction inlet and scour nozzles communicated with the pressure chamber according to the invention provided with a rigidly mounted in the housing cylinder with scour nozzles communicated with the pressure cavity and located in the suction nozzle, with the nozzle of scour nozzles on the head facing counter to the direction of movement of the pulp in the suction pipe.
The drawing shows a diagram of the inventive suction head; it is in horizontal projection.
Groundsamine device includes a housing 1, the suction nozzle 2, the pressure cavity 3, the head 4 located in the suction pipe and protruding beyond erode the nozzle 5. Injector nozzles 5 arranged on the cylinder head 4 facing counter to the direction of movement of the pulp in the suction pipe.
The cylinder 4 injector 5 is rigidly fixed in the housing 1 and is in communication with the pressure cavity 3.
Declare groundsamine the device operates as a common nozzle 5 will expire in the array of ground, blurring it and saturating with water. Resulting from exposure to an array of soil water jets emanating from the scour nozzles 5, the slurry is sucked into grantsalert through the suction nozzle 2 and is fed to the stacking site. Introduction of the head 4 with the nozzle 5 into the intake pipe 2 allows the suction in the area of return flows pulp reduces the likelihood of clogging of the suction nozzle and the nozzles in the drilling, which contributes to the intensification of the process of absorption and thus increase the technical performance of the device. Declare groundsamine device is intended for extraction of soils from erosion, located under the bottom surface. Thus, when designing primers eliminates the turbidity of the reservoir and a complete violation of the integrity and structure of the surface layers of the seabed increases operational efficiency of production due to increase in the concentration of the pulp.
1. Groundsamine device for the extraction of minerals from underwater deposits, comprising a housing with a suction inlet and scour nozzles communicated with the pressure cavity, characterized the second cavity and located in the suction pipe, when this nozzle scour nozzles on the head facing counter to the direction of movement of the pulp in the suction pipe.
2. Groundsamine device under item 1, characterized in that the head protrudes outside of the suction pipe.
FIELD: sapropel extraction technologies.
SUBSTANCE: device has watercraft, rectangular receiving device in plan with two side vertical walls, device for catching and transporting sapropel and tank for it. Watercraft is made of platform on two pontoons, and between pontoons receiving device is placed, provided with slanting relatively to platform end walls with forming of closed space. Upper edges of side and end walls are placed above water surface, and lower ones - in productive sapropel bed below clear water layer. Device for catching and transporting sapropel is made in form of one-chain conveyor, tail portion of which is suspended on twin ropes and placed in productive sapropel bed. Free ends of each pair of ropes are fixed with possible winding together and onto hand-actuated winch drum with stopping gear, mounted on two interconnected floats. Head portion of one-chain conveyor is placed at shore with forming of convex and concave, in vertical plane, portions with placement of slanting portion within receiving device and fixing thereon via corbels. Receiving device on platform is fixed on the side of shore via joints, and on the opposite side is suspended to platform with two flexible elements, free ends of which are fixed with possible winding together and onto winches drums.
EFFECT: higher effectiveness and productiveness.