CN218796488U - Sea sand shell separator - Google Patents

Abstract

The utility model discloses a sea sand shell separator, including premixing the subassembly, meet with outside feeder, interfere the separable set and include the generator, down the generator, the generator side is equipped with the first input tube that inserts outside water source down, the utility model discloses based on physical method, through designing an interference settlement setting for the garrulous shell that waits footpath with purifying sea sand receives sufficient drag force upwards in forcing non-Newton flow field, overcome gravity along with water discharge, and purify sea sand and then take place to interfere because of self gravity and subside, and then realize garrulous shell and the separation of purifying sea sand, and carry out secondary filter to shell sea sand through setting up the filter screen, accessible secondary separating mechanism makes the shell that itself carried sink fast on the one hand, and on the other hand drives the fine crushing shell that the top breaks away from and sinks fast, and then makes the filter screen resume the state again.

Description

Sea sand shell separator

Technical Field

The utility model relates to a sea sand shell separator belongs to sea sand shell processing technology field.

Background

The existing sea sand desalination equipment shell removal method is that a first procedure is arranged before chloride ions are fed and removed, large shells and impurities are usually filtered by using a drum screen, and broken shells with the same diameter as sand, namely the particle size of less than 4.75mm, are not subjected to any measures, and can only be dechlorinated together with the sand and mixed for use. Therefore, the existing sand desalting equipment can only remove chloride ions, desliming and remove shells and other impurities larger than 0.75 MM. The quality of the desalted sea sand depends on the quality of the raw sand to a great extent, and the requirement on raw sand incoming materials is severe.

The apparent density (specific gravity) of the shell is 2.77kg/m ³ The apparent density (specific gravity) of the sand was 2.62kg/m ³ The specific gravity of the sea sand and the shell is very close, the conventional mineral separation method such as centrifugation, oscillation, flotation and the like and the silt cyclone separation method are generally adopted, if the content of the broken shells in the desalted sea sand is not reduced, the sea sand is used in concrete, cracks are easy to generate in the concrete, a large amount of water is needed in the separation process, the sea sand and the shells are diluted in a mixed state, and then the mixture in the diluted state is separated, so the separation difficulty of the mixture is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art exists, the utility model aims at providing a sea sand shell separator, can get into the secondary along with a large amount of rivers at the shell after tentatively accomplishing the separation and partial sea sand with the prior art of solution and separate, can carry out secondary or even repetitious use with the rivers after the separation, be used for the water economy resource, nevertheless carry out the rivers of recycling, be difficult to avoid carrying partly shell and sea sand, when setting up the filter screen and filtering it, because the shell is the slice and the shape differs, very easy jam filter orifice, and attach and combine the sea sand, make the filter screen appear easily and block up and all need the problem of artificial mediation after blockking up at every turn.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a sea sand shell separation device comprising: the pre-mixing assembly is connected with an external feeder and comprises an upper generator and a lower generator, a first input pipe connected with an external water source is arranged on the side surface of the lower generator, the interference reaction mechanism is connected with the upper generator and the lower generator, a secondary separation mechanism is installed on one side of the upper generator through a connecting pipe and comprises: the separation cone cylinder is welded with a delivery pipe arranged above the separation cone cylinder, an active adjustment filter element is fixedly arranged below the delivery pipe, and the active adjustment filter element is positioned inside the separation cone cylinder;

the active adjustment filter element comprises a casing fixed with the delivery pipe and a filter screen arranged below the casing, a plurality of auxiliary filter blocks are arranged on the side surface of the casing at intervals, a push rod is fixedly installed on one side, close to the filter screen, of each auxiliary filter block, and one end, far away from the auxiliary filter blocks, of the push rod is fixedly connected to the filter screen.

The beneficial effects of the utility model are that:

the utility model discloses based on the physics method, subside through designing an interference, make the garrulous shell that equals the footpath with purifying sea sand receive sufficient drag force upwards in forcing non-Newton's flow field, overcome gravity and discharge along with water, and purify sea sand and then take place to interfere the settlement because of self gravity, and then realize garrulous shell and the separation that purifies sea sand, carry out secondary filtration to shell sea sand through setting up the filter screen, filter the rivers for low impurity state and retrieve and carry out the secondary use, when the filter screen blocks up, accessible deformation opens the supplementary filter mass with the help of the push rod, make rivers can carry out the earial drainage through the side, when rivers earn the earning through the side, filter screen lower pressure reduces, and the rivers that earn through the side can strike inside the filter screen, further balance inside and outside water pressure, make the shell that blocks fall, one end distance, and when the shell gets into the rotatory impact flow that the rivers lead-in pipe was introduced, can be by the downward fast, and can make some filter screen, and the rivers lead-in pipe to through the angle slope installation, the rivers are carried on the side to the inclined direction of going down flows in, thereby can form the traction potential energy fast, on the one side, make the top of carrying shell drive the shell to fall again, and make the fine crushing shell resume again, and make the fine crushing state again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of the sea sand and shell crushing and separating device of the present invention.

Fig. 2 is an exploded view of the interference reaction mechanism.

FIG. 3 is a schematic top view of the interference reaction mechanism.

Fig. 4 is a schematic view of the assembly of the secondary separation mechanism.

Fig. 5 is a schematic structural view of the secondary separation mechanism.

Fig. 6 is a side view of the lower generator.

Fig. 7 is a schematic cross-sectional view of the lower generator.

Fig. 8 is a side view of the upper generator.

Fig. 9 is a schematic cross-sectional view of an upper generator.

FIG. 10 is a schematic diagram of a pre-mix assembly configuration.

Fig. 11 is a schematic side view of the internal structure of the input module.

Fig. 12 is a block diagram of a sea sand crushed shell separating apparatus.

FIG. 13 is a step diagram of a sea sand crushed shell separation method.

Fig. 14 is a schematic view of the internal structure of the secondary separation mechanism.

FIG. 15 is a schematic view of a construction of an active adjustment filter.

FIG. 16 is a schematic cross-sectional view of an actively regulated filter.

Fig. 17 is an enlarged view of a portion a in fig. 16.

FIG. 18 is a top view of an actively regulated filter.

Detailed Description

To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Examples

As shown in figures 1 to 18:

the utility model provides a garrulous shell separator of sea sand, include: the interference separation assembly comprises an upper generator 1 and a lower generator 2, wherein a first output pipe 11 is arranged on the side surface of the upper generator 1, and a first input pipe 21 is arranged on the side surface of the lower generator 2; a pre-mixing assembly for forming a sand-water mixture; the interference reaction mechanism 3 is connected with the upper generator 1 and the lower generator 2, the interference reaction mechanism 3 comprises an upper die part 31 and a lower die part 32, an interference cavity is arranged between the upper die part 31 and the lower die part 32, the side surfaces of the upper die part 31 and the lower die part 32 are provided with an access port 33, and the access port 33 is used for connecting a premixing assembly to input sand-water mixed liquid; the pump station 6 inputs pressurized water flow into the interference cavity through the lower generator 2 through the input pipe, the pump station 6 is connected with the premixing component, and the pump station 6 inputs the sand-water mixed liquid into the interference cavity in a pressurized manner; the sand-water mixed liquid and the pressurized water flow form sand-shell interference separation in the interference cavity, and a secondary separation mechanism 4 is installed on one side of the upper generator 1 through a connecting pipe 12.

The existing sea sand and shell separation modes mostly adopt conventional methods such as centrifugation, oscillation, flotation, silt cyclone separation and the like, the sea sand and shell are separated by adopting the separation modes, the content of the shell in the sea sand is difficult to further reduce, and the yield of fine sand is difficult to improve, so that an upper generator 1 and a lower generator 2 are arranged to assist in sand shell separation, an interference reaction mechanism 3 is arranged between the upper generator 1 and the lower generator 2, interference impact of sand-water mixed liquid and water flow is carried out in the interference reaction mechanism 3, and the sand-shell is efficiently separated through different resistances borne by the sand shell.

Specifically, the lower generator 2 is connected with a first pump 61 in a pump station 6 through a first input pipe 21, so that water flow enters the lower generator 2 at a flow speed of 3.5-8.2 m/s, a flow guide pipe 22 is arranged inside the lower generator 2, the height of an input port below the flow guide pipe 22 is lower than that of an input port of a first output pipe 11, a conical cylinder 23 is arranged below the lower generator 2, and when the conical cylinder 23 and the lower generator 2 are filled with the water flow, the flow is reversely guided to an interference reaction mechanism 3 arranged above the lower generator 2 through the flow guide pipe 22;

it is emphasized that the first inlet pipe 21 is arranged tangentially to the inner circular surface of the lower generator 2 so that the water entering the lower generator 2 through the first inlet pipe 21 can impinge on the inner circular surface of the lower generator 2 with an inclination to set the water in the lower generator 2 into a vortex state. Further, a discharge valve 24 which is intermittently opened and closed is arranged below the conical cylinder 23, when sea sand which sinks through the draft tube 22 enters a vortex flow state in the lower generator 2, the settling speed can be accelerated, the sea sand can be stably settled below the conical cylinder 23, and then the sea sand is discharged along with the opening of the discharge valve 24 to obtain the sea sand. Wherein, the speed that rivers got into lower generator 2 is equivalent to the speed that rivers passed through honeycomb duct 22, in this embodiment, because the sea sand of screening is fine quality sea sand, the preferred interval of rivers velocity of flow is 7.8-8 meters per second, in other embodiments, can carry out corresponding regulation to the rivers velocity of flow according to the capacity of generator and the concrete quality of required sea sand, when the rivers velocity of flow is lower, the sea sand quality reduces relatively, when the rivers velocity of flow is higher, the quality of sea sand is relatively higher. In this embodiment, the discharge valve is a solenoid valve, which is not shown in the figure via a wire and is controlled by an external system not shown in the figure.

The sand-water mixed liquid passes through a premixing component and is input into the interference reaction mechanism 3 under the pressurization of a second pump 62 in the pump station 6; specifically, the premixing assembly comprises an input module 51, an output module 52 and a mixing pipe 53 for connecting the input module 51 and the output module 52, wherein a cylindrical groove is formed in the input module 51, a second input pipe 54 for inputting sand shells is externally connected to the center of the cylindrical groove, and a third input pipe 55 for inputting water flow is externally connected to the ring surface of the cylindrical groove; the flow velocity intervals of the sand shell input by the second input pipe 54 and the water flow input by the third input pipe 55 are both 0.75-1.6 m/s, and the flow velocity interval of the sand-water mixed liquid entering the interference reaction mechanism 3 after mixing to form the sand-water mixed liquid is 1.5-3.2 m/s.

In the embodiment, the flow rates of the sand shell and the water are mixed in equal proportion, the flow rate interval of the sand shell input by the second input pipe 54 and the flow input by the third input pipe 55 is 1.45-1.55 m/s, and in other embodiments, the proportion can be changed by adjusting the flow rates of the sand shell and the flow input by the water flow; in addition, in order to sufficiently disperse the sand-water mixture in cooperation with the water flow input by the draft tube 22 and accurately strike the shells therein, in this embodiment, the flow rate interval of the sand-water mixture entering the interference reaction mechanism 3 is preferably 2.9-3.1 m/s. In other embodiments, the flow rate ratio of the sand-water mixture flow rate to the flow rate of the water in the draft tube 22 can be adjusted to be 1.

The sand shells input through the second input pipe 54 linearly flow into the mixing pipe 53, the water flow input port is tangent to the edge of the inner annular surface of the input module 51, the water flow rotates along the inner annular surface to form a vortex flow, and the sand shells in the middle of the vortex flow can be rapidly mixed to form a sand-water mixed liquid.

The sand-water mixed liquid is input into the interference reaction mechanism 3 from the side through the premixing component, the water flow is input into the interference reaction mechanism 3 from the lower part through the guide pipe 22 in the lower generator 2, and the sand-water mixed liquid and the water flow impact each other at an included angle of 30-60 degrees to form interference reaction;

specifically, when the water flow and the sand-water mixed liquid are mixed in an interference manner, because the impact force of the water flow is greater than that of the sand-water mixed liquid, when the sand-water mixed liquid is scattered, the sea sand and the shells in the mixed liquid are impacted simultaneously, because the impact surface of the spherical-like sea sand is smaller, and the impact surface of the flaky shell is larger, through the difference of the sizes of the impact surfaces of the sea sand and the shells, the resistance force borne by the flaky shell is greater than that of the spherical-like sea sand, so that the spherical-like sea sand can gradually descend, enter the lower generator 2 through the flow guide pipe 22, and is accumulated in the conical barrel 23; the flaky shell can gradually rise under the action of impact force and enter the upper generator 1 through a connecting port between the lower part of the upper generator 1 and the interference reaction mechanism 3.

Wherein, slidable mounting has U frid 34 in interfering the chamber, intracavity portion is interfered to U frid 34 open end orientation, just laminating of U frid 34 lateral surface and interference intracavity lateral surface, U frid 34 is kept away from U groove one side and is equipped with push rod 35, and push rod 35 is external to be connected not shown in the servo motor that is not shown through the control in the external system figure, and the slip of control U frid 34 in interfering the chamber, U frid 34 can interfere honeycomb duct 22 and last generator 1 below and the connector of interfering reaction mechanism 3 at gliding in-process, and then under the no other variable circumstances, flow rate and the pressure of the injection rivers of slip regulation honeycomb duct 22 through U frid 34.

In this embodiment, the interference cavity formed by the upper mold 31 and the lower mold 32 is a rectangular inner cavity, the feed inlet on the left side is inclined upward by 30 ° downward, and forms a 60 ° included angle with the draft tube 22, and in other embodiments, the feed inlet on the left side is inclined downward by 30 ° upward, and forms an included angle with the draft tube 22, and the included angle interval is required to be ensured to be between 30 ° and 60 °, and the interference cavity formed by the upper mold 31 and the lower mold 32 can be adjusted, and can be set to be in other shapes such as circular arc shape, and the chamfer is required to be ensured to be connected to the port of the interference cavity in the draft tube 22, so that sea sand can enter the draft tube 22.

As a further improvement, on the premise of not damaging the environment, high polymer or high-viscosity liquid and other non-Newtonian fluids are added to circulating water as additives to improve the viscosity of the aqueous solution and the water mixed solution, so that the separation precision and the separation effect can be obviously improved. Common polymers are: polyethylene oxide, polyacrylamide, polyvinyl chloride, nylon 6, PVS, celluloid, terylene, rubber solution, various engineering plastics, melts of chemical fibers and the like. The non-Newtonian fluid has complex properties such as polymer solution, melt, paste, gel, cross-linking system, suspension system and the like.

The water flow with the shell enters the upper generator 1 through an upper surge pipe 12 from a connecting port of the interference reaction mechanism 3 below the upper generator 1, and is conveyed to the secondary separation mechanism through a first output pipe 11 arranged on the side surface of the upper generator 1; specifically, a storage cavity is arranged in the upper generator 1, an upwelling pipe 12 is vertically arranged in the middle of the storage cavity, the lower part of the upwelling pipe 12 is connected with the interference reaction mechanism 3, a throttling rod 13 is embedded above the upper generator 1, the throttling rod 13 is inserted into the upwelling pipe 12, and a circulation loop is arranged between the throttling rod 13 and the upwelling pipe 12; the flow speed and the flow rate of the water flow with the shell entering the storage cavity are controlled by the throttle rod 13, and the precision of the sand shell separation is in direct proportion to the depth of the throttle rod 13 inserted into the upwelling pipe 12.

The throttle rod 13 belongs to a wearing part, and has a main function of ensuring that the separation effect is always in a good state, and the separation effect needs to be replaced after the separation effect is normally operated for 300-500 hours.

The shell and the partial sea sand after tentatively accomplishing the separation can get into the secondary separation along with a large amount of rivers, can carry out the secondary and use many times even with the rivers after the separation, be used for the water economy resource, but carry out the rivers of recycling, after the area shell rivers got into secondary separating mechanism, utilize the impact force of rivers, deposit the shell downwards, discharge the rivers through the top, deposit the separation through whirl many times, make water and shell the at utmost realize the separation, but be difficult to avoid carrying partly shell and sea sand, when setting up the filter screen and filtering it, because the shell is the slice and the shape differs, it blocks up the filter opening very easily, and attach and combine the sea sand, make the filter screen appear blockking up easily.

Specifically, the other end of the first output pipe 11 on the side of the upper generator 1 is provided with the secondary separation mechanism 4, the shell-contained water flow is input from the side of the separation cone cylinder 41, the shell-contained water flow enters from the tangential direction of the side wall, an axial component force and a radial component force are formed through the conical wall, the radial component force corresponds to a centrifugal force, the axial component force enables the heavier shells to descend to the conical bottom, the lighter water is discharged upwards to the axis, the shells sink in the separation cone cylinder 41 and are discharged through an intermittent opening and closing valve 43 arranged below the separation cone cylinder 41, the overflow water flow enters the separation cone cylinder 41 at the upper position from the upper position of the separation cone cylinder 41, the separation cone cylinder 41 at the upper position inputs from the side and performs the same treatment on the shell-contained water flow as the separation cone cylinder 41 at the lower position. In this embodiment, the intermittent on-off valve 43 is a solenoid valve, and is controlled by an external system not shown in the figure through a lead wire not shown in the figure.

Wherein the secondary separation mechanism 4 includes: the secondary separation mechanism 4 further comprises a water flow inlet pipe 42 and a sea sand shell outlet pipe 45, wherein the water flow inlet pipe 42 is further installed on one side of the separation cone cylinder 41, the water flow inlet pipe 42 is connected with the upper generator 1 through a connecting pipe 12, the sea sand shell outlet pipe 45 is installed below the separation cone cylinder 41, and an electromagnetic valve 46 is fixedly installed in the sea sand shell outlet pipe 45;

the active adjusting filter element 44 includes a casing 441 fixed with the outlet pipe 43, a filter screen 442 disposed under the casing 441, a plurality of auxiliary filter blocks 443 disposed at intervals on a side of the casing 441, a push rod 444 fixed to a side of the auxiliary filter block 443 close to the filter screen 442, and an end of the push rod 444 remote from the auxiliary filter block 443 fixed to the filter screen 442.

When the water flow is discharged towards the direction of the discharge pipe 43, the water flow passes through the filter screen 442 and then enters the discharge pipe 43, when the finely-divided shells are continuously blocked by the filter screen 442 and are difficult to pass through and discharge, so that the internal water pressure is increased, the filter screen 442 is pushed upwards and can be assisted by the connection of the push rod 444, then the auxiliary filter block 443 connected to the other end of the push rod 444 is pushed away, so that the water flow can be discharged through the side surface, when the water flow is discharged through the side surface, the pressure below the filter screen 442 is reduced, and the water flow flowing in through the side surface of the casing 441 can impact the inside of the filter screen 442, so that the internal water pressure and the external water pressure are further balanced, the blocked shells fall down to one end, and when the shells enter the rotary impact flow introduced by the water flow introduction pipe 42, the shells are rapidly taken away downwards, so that a part of the filter screen 442 can be dredged;

when the pressure applied to the filter 442 is reduced, the filter 442 returns outward and pulls the push rod 444, and the auxiliary filter block 443 is pulled by the pull of the push rod 444 to close the flow port on the side of the housing 441.

In order to form a downward traction potential energy in the first time by the water flow introduced from the water flow introducing pipe 42, the water flow introducing pipe 42 is installed at an angle of 5 ° to 10 °, and the water flow flows in from an inclined direction to an inclined direction by being installed at a small angle, so that the traction potential energy can be quickly formed, on one hand, shells carried by the water flow introducing pipe can quickly sink, on the other hand, the finely-divided shells which are separated from the upper filter screen 442 can be driven to quickly sink, and in the embodiment, the installation angle of the water flow introducing pipe 42 is preferably 10 °.

In order to avoid that when the auxiliary flow is adjusted, the fine crushed shells are clamped on the outer side surface of the auxiliary filter block 443 to cause that the auxiliary filter block 443 cannot be completely closed, therefore, a soft ring 4431 is embedded on the outer ring surface of the auxiliary filter block 443, the outer side surface of the soft ring 4431 is attached to the casing 441, wherein the soft ring 4431 is made of silica gel, even if the fine crushed shells exist, the fine crushed shells can be attached to the soft ring through deformation, an annular sinking groove 4432 is arranged on the outer ring surface of the auxiliary filter block 443 to temporarily store the partial fine crushed shells or sea sand, and further, the error rate of the auxiliary filter block 443 when being folded can be greatly reduced. In an embodiment, the auxiliary filter blocks 443, the push rods, etc. are provided in 4 sets, and in other embodiments, other numbers of sets, such as 6 sets, may be provided as shown in fig. 18.

In order to push the push rod 444 to push the auxiliary filter block 443 outward from the inside, the length of the outer side surface of the auxiliary filter block 443 is greater than that of the inner side surface, and a slope is formed between the outer side surface and the inner side surface.

In order to ensure that the pushing force generated after the filter screen 444 deforms can accurately act on the auxiliary filter block 443, the push rod 444 is welded on one side of the auxiliary filter block 443, the push rod 444 penetrates through the guide strip 4441, two ends of the guide strip 4441 are embedded and fixed on the casing 441, and under the guide of the guide strip 4441, one end of the push rod 444 can be accurately stressed when being pushed.

Because the deformation position of the filter screen 442 caused by stress is random, a connecting piece 4421 is welded in the middle of the filter screen 442, the upper side of the connecting piece 4421 is welded with the lower side of the push rod 444, in the embodiment, the connecting piece 4421 is a solid piece circular concave piece and is made of stainless steel materials, when the pressure on the outer side surface of the filter piece 444 is consistent, the connecting piece 4421 is concave towards the inside first in a concave state, and then the push rod 444 can be pushed.

In addition, because under the action of water pressure, when the mechanism carries out active adjustment auxiliary flow distribution, the duration is short, the mechanism cannot be opened for a long time under the action of external water pressure, and meanwhile, in order to weaken the influence of lower water flow, the filter screen 442 is protruded towards the outside and is in an arc shape, and the shell 441 is sunken towards the inner side in an arc shape.

The secondary separation mechanism 4 comprises two separation conical cylinders 41 arranged in a staggered manner, and a connecting pipe 42 is arranged between the two separation conical cylinders 41; as a further supplement, a plurality of said separation cones 41 are fixedly connected by a support 44. The water flow after the shell water separation is input into a filter with a disc sheet type in the pump station 6, which is not shown in the figure, for filtering, and then is input into the lower generator 2 for recycling after backflow;

in other embodiments, the disc filter (not shown) can be replaced by various sedimentation filter devices such as a cloth bag type, a pressing plate type, a sedimentation tank and the like, so as to further reduce the cost and improve the economic benefit.

In other embodiments, the pump station 6 can be a positive displacement pump such as a reciprocating pump and a rotary pump, a piston pump and a plunger pump, a gear pump, a screw pump, a vane pump and a water ring pump, and an impeller pump such as an axial pump, a mixed flow pump, a vortex pump or a jet pump, in addition to the multistage centrifugal pump used in this embodiment.

In other embodiments, the secondary separation mechanism may be replaced with a settling tank, one or more secondary separation mechanisms, to reduce costs.

A sea sand crushed shell separation method comprises the following steps:

s1, pressurizing water flow through a pressure pump, feeding the water flow into a lower separator from the side at a preset flow rate to obtain water flow with upward axial force, and feeding the water flow into a main separator to form separation impact flow;

s2, inputting the sand-water mixed liquid into a main separator at a preset flow rate through a pressure pump, and performing opposite impact on the sand-water mixed liquid and the separation impact flow at a preset angle to form interference impact;

s3, under the interference impact state, sea sand is subjected to interference settlement, descends into a lower separator and is discharged from the lower separator, while shells are subjected to interference rise and are carried into an upper separator through water flow for temporary storage;

and S4, allowing water flow carrying the shells in the upper separator to enter the shell-water separator, allowing the shells in the shell-water separator to sink to the bottom by gravity and discharge, and discharging the water flow from the upper end.

In step S1, the preset flow rate of the water flow entering the main separator is 3.5-8.2 m/S, and further, the flow rate of the water flow entering the main separator is proportional to the flow rate of the sand-water mixture, the ratio of the flow rate to the flow rate of the sand-water mixture is 2.5.

The water flow enters the lower separator in a side cutting mode to form rotational flow, forms axial force water flow through the guide pipe and then is input into the main separator above the lower separator, and sand grains settled from the main separator and entering the lower separator can be discharged through an intermittent valve port arranged below the lower separator in an opening and closing mode.

In step S2, the flow rate of the sand-water mixed liquid is obtained by superposing the flow rate of sand and the flow rate of water before mixing, and the ratio of the sand-water mixed liquid to the flow rate of water is adjusted by the ratio of the sand flow rate to the flow rate of water before mixing, which is 1, and the flow rate is 1.5 m/S,

in the step S2, the sand-water mixed liquid is input into a non-Newtonian flow field to force a preset flow velocity in the vortex generation process to be 1.5-3.2 m/S. Further, the flow speed of the sand-water mixed liquid is 3 m/s.

In the step S2, the preset angle for the interference between the water flow and the sand-water mixed liquid is 30 ° to 60 °, and further, the sand-water mixed liquid inlet is inclined from bottom to top by 30 ° to form a 60 ° included angle with the water flow.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (9)

1. A sea sand shell separation device comprising: the premixing component is connected with an external feeder, the interference separation component comprises an upper generator (1) and a lower generator (2), a first input pipe (21) connected to an external water source is arranged on the side surface of the lower generator (2), and an interference reaction mechanism (3) is connected with the upper generator (1) and the lower generator (2), and is characterized in that a secondary separation mechanism (4) is installed on one side of the upper generator (1) through a connecting pipe (12), and the secondary separation mechanism (4) comprises: the separation cone cylinder (41) is welded with a delivery pipe (43) arranged above the separation cone cylinder (41), an active adjustment filter element (44) is fixedly arranged below the delivery pipe (43), and the active adjustment filter element (44) is positioned inside the separation cone cylinder (41);

the active adjusting filter element (44) comprises a casing (441) fixed with the delivery pipe (43) and a filter screen (442) arranged below the casing (441), wherein a plurality of auxiliary filter blocks (443) are arranged on the side surface of the casing (441) at intervals, a push rod (444) is fixedly arranged on one side, close to the filter screen (442), of each auxiliary filter block (443), and one end, far away from the auxiliary filter block (443), of the push rod (444) is fixedly connected to the filter screen (442).

2. The sea sand shell separating device according to claim 1, wherein the secondary separating mechanism (4) further comprises a water flow inlet pipe (42) and a sea sand shell outlet pipe (45), the water flow inlet pipe (42) is connected with the upper generator (1) through a connecting pipe (12), the water flow inlet pipe (42) is further installed on one side of the separating conical cylinder (41), the sea sand shell outlet pipe (45) is installed below the separating conical cylinder (41), and an electromagnetic valve (46) is fixedly installed in the sea sand shell outlet pipe (45).

3. A sea sand shell separation device as claimed in claim 2, wherein the water flow inlet pipe (42) is installed at an angle of 5 ° to 10 °.

4. A sea sand shell separating device as claimed in claim 1, wherein the outer ring surface of the auxiliary filter block (443) is embedded with a soft ring (4431), the outer side surface of the soft ring (4431) is attached to the casing (441), and the outer ring surface of the auxiliary filter block (443) is provided with an annular sink groove (4432).

5. A sea sand shell separating device as claimed in claim 1 or 4, characterized in that the length of the outer side of the auxiliary filter block (443) is greater than the length of the inner side, forming a bevel between the outer side and the inner side.

6. The sea sand shell separation device as claimed in claim 1, wherein the push rod (444) is welded on one side of the auxiliary filter block (443), a guide strip (4441) penetrates through the push rod (444), and two ends of the guide strip (4441) are embedded and fixed on the casing (441).

7. A sea sand shell separating device as claimed in claim 1, wherein a connecting piece (4421) is welded in the middle of the filter screen (442), and the upper part of the connecting piece (4421) is welded with the lower part of the push rod (444).

8. A sea sand and shell separating device as claimed in claim 1 or 7, wherein the screen (442) is convex towards the outside in the shape of a circular arc.

9. A sea sand shell separation device according to claim 1, wherein the casing (441) is arcuately concave towards the inside.

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