CN114602240A - Efficient fine sand recovery device with centralized liquid inlet at sustainable end part - Google Patents
Efficient fine sand recovery device with centralized liquid inlet at sustainable end part Download PDFInfo
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- CN114602240A CN114602240A CN202210220761.2A CN202210220761A CN114602240A CN 114602240 A CN114602240 A CN 114602240A CN 202210220761 A CN202210220761 A CN 202210220761A CN 114602240 A CN114602240 A CN 114602240A
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- B01D36/04—Combinations of filters with settling tanks
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Abstract
The invention provides a high-efficiency fine sand recovery device with centralized liquid inlet at the end part, wherein a liquid inlet area and a sand filtering area are arranged in a box body in a separating manner along the length direction, and a liquid inlet is communicated with a plurality of drainage devices which are arranged in parallel at intervals along the width direction of the box body; the below sets up the swash plate in the sand filtration district, and the line between the last middle part in swash plate and sand filtration district and income liquid mouth is angle a setting, and 60 < a <120, drainage device are hollow structure, including arc top surface and lower arc bottom surface down, one end intercommunication income liquid mouth, set up in the top of swash plate sets up a plurality of through-holes on the lower arc bottom surface, and guider is connected to the through-hole, and guider includes the guide post, and the upper cover formula sets up the winding of soft absorbent on the guide post, and the well upper portion in sand filtration district sets up a plurality of parallel arrangement's refraction board, and 0 ~ 5 contained angle is personally submitted with the swash plate along box width direction's perpendicular. The multi-level flow distribution design reduces the liquid inlet energy and the turbulent flow, designs an optimized filtering and settling path, and improves the tailing filtering efficiency.
Description
Technical Field
The invention relates to the field of machine-made sand environment-friendly recovery equipment, in particular to a high-efficiency fine sand recovery device with a continuous end part entering liquid in a centralized manner.
Background
With the restriction and prohibition of the country on the exploitation of natural sand (river sand), the market puts higher requirements on artificial sand (machine-made sand), the sand gradation is required to reach the second-zone sand standard in GB/T14684, and about 85% of the second-zone sand is medium-fine sand.
In the wet sand making process of the machine-made sand, a water washing sand process and a wet screening process are commonly used, overflow liquid and dehydration swell overflowing from the sand washing machine and dehydrated by wet screening are serious in loss of medium and fine sand, particularly the loss rate of the fine sand reaches more than 20%, the phenomenon not only loses yield, but also seriously affects the gradation of the sand, causes unreasonable gradation, has coarse fineness modulus and greatly reduces the product quality of the machine-made sand. Excessive fine sand is discharged in a loss manner, environmental pollution is caused, and ecological balance and development are not facilitated.
In order to solve the problem of fine sand loss in a wet sand making process production line, a fine sand recovery process production line is usually formed by adopting a slurry pump, a cyclone, a high-frequency vibrating screen, a cleaning tank, a return box and the like, but the recovery method of the process is dynamic sand selection of equipment with limited yield, and on the production line of the equipment, the bottleneck is hardly broken through in continuous dynamic liquid flow so as to further reduce the fine sand loss rate. With the development of production technology in the mineral separation equipment industry of the society, the environment-friendly, high-efficiency, energy-saving and environment-friendly effects are imperative, the problems of frugal investment, local investment and effective input of a plurality of old production lines of the finished equipment are solved, the monomer high-efficiency tailing recovery equipment which can be embedded into the finished production lines is developed, the pollution behavior is effectively restrained, and the development is urgent.
Disclosure of Invention
The invention provides a high-efficiency fine sand recovery device with a centralized liquid inlet at the end part continuously, and aims to flexibly embed a production line of old sand selecting equipment and improve the problem of fine sand recovery.
In order to achieve the aim, the invention provides a high-efficiency fine sand recovery device with a continuous end part centralized liquid inlet, which comprises a box body,
a liquid inlet area and a sand filtering area are arranged in the box body in a separation mode along the length direction, an overflow port is arranged at the upper part of one end, away from the liquid inlet area, in the sand filtering area, a liquid inlet is arranged at the lower part between the liquid inlet area and the sand filtering area, and the liquid inlet is communicated with a plurality of drainage devices which are arranged in parallel at intervals along the width direction of the box body;
an inclined plate for bearing liquid is arranged below a liquid inlet in the sand filtering area, one end of the inclined plate is connected with a bottom plate of the box body, the inclined plate is arranged at an angle a with a connecting line between the upper middle part of the sand filtering area and the liquid inlet, the angle a is 60 degrees less than a <120 degrees, and the position of a connecting line between the inclined plate and the bottom plate is not more than the projection position of half of the length direction of the sand filtering area on the bottom plate;
the drainage device is of a closed hollow structure and at least comprises a lower arc-shaped top surface and a lower arc-shaped bottom surface, one end of the hollow mechanism is communicated with the liquid inlet, and the drainage device is not longer than the inclined plate in length direction, is arranged above the inclined plate and is parallel to the inclined plate;
the lower arc-shaped bottom surface is provided with a plurality of through holes, the through holes are connected with a plurality of guiding devices for guiding the water to the inclined plate, the guiding devices comprise guiding columns arranged in a plurality of directions in a guiding manner, the guiding columns are covered with soft water-absorbing winding materials, and at least the tail parts of the winding materials are in contact with the inclined plate;
the sand filtering device is characterized in that a refraction sand filtering area is arranged at the middle upper part of the sand filtering area, the refraction sand filtering area comprises a plurality of refraction plates which are arranged in parallel, the arrangement structure of the lower bottom surfaces of the refraction plates forms a first parallel bottom surface and a second parallel bottom surface, the first bottom surface is positioned above the drainage device and forms an included angle of 0-15 degrees with the inclined plate, the second bottom surface is positioned above the bottom plate, and the second bottom surface and the bottom plate form an included angle of 0-15 degrees;
the refraction plate and the inclined plate are arranged at an included angle of 0-5 degrees along the vertical plane of the width direction of the box body, the upper top surface of the refraction plate is horizontally and neatly arranged, and the upper top surface is located below the lowest point of the overflow port.
Preferably, the drainage device top with set up the stationary flow space between the first bottom surface, guider with the afterbody of swash plate the region on bottom plate upper portion sets up the sand collection space, sand collection space intercommunication the sand outlet of bottom half, sand outlet carries out the negative pressure through pipeline intercommunication sediment stuff pump and pulls out the sand, sand collection space top extremely set up nature sand filtering area between the second bottom surface, the top surface of refraction board with set up the advection transition district between the overflow mouth.
Preferably, the lower part of the outside end plate of income liquid district sets up the water conservancy diversion end plate that the leanin set up, the bottom of water conservancy diversion end plate and the bottom plate welded fastening of box, set up the opening unanimous with box width direction on the water conservancy diversion end plate, the outside sealing connection who opens the mouth sinks the groove, sink the inslot and set up the grid, the water conservancy diversion end plate quilt sink the groove and cut apart into water conservancy diversion end plate and lower water conservancy diversion end plate, the income liquid overflow formula equipartition in the sink groove gets into go into the liquid mouth, set up in the sink and store up the sand inner bag, the both sides top of storing up the sand inner bag sets up the hoisting ring.
Preferably, the inboard of going up the water conservancy diversion end plate sets up cockscomb structure slow flow ladder, width direction, the cockscomb structure slow flow ladder is the "type of the chinese or the" type structure.
Preferably, the wrap is a textile-like tassel.
Preferably, the guide columns respectively use the through holes as centers to conduct multi-level flow guiding diffusion to the center and the circumference, the angle between each guide column and the axis of each through hole is 0-45 degrees, and the guide columns on the adjacent sides of the adjacent through holes are mutually crossed and connected.
Preferably, two rows of the through holes are arranged along the length direction of the lower arc-shaped bottom surface, the two rows of the through holes are arranged in a staggered manner, and the lower arc-shaped bottom surface between the two rows of the through holes at least comprises the lowest part of the lower arc.
Preferably, drainage device's afterbody sets up for sealing, sets up downward convex grit chamber at the afterbody, grit chamber intercommunication drainage device's inner chamber, the bottom in grit chamber sets up the bottom shrouding, the one side in the same direction as along rivers the place ahead of bottom shrouding pass through spring hinge connection in drainage device's afterbody shrouding.
Compared with the related art, the continuous efficient fine sand recovery device with the end part centralized liquid inlet has the following beneficial effects:
the invention sets the concentrated liquid inlet area, performs the functions of slow flow and flow distribution on dynamic continuous liquid inlet through multi-level flow distribution design, reduces liquid inlet energy and turbulence, designs an optimized filtering and settling path, optimizes the settling environment of filter sand within the limited filter area range, and improves the tailing filtering efficiency.
The invention can be embedded and connected in the continuous process link after the washing sand or wet screening of the continuous liquid feeding of the existing sand selecting production line, does not change other devices and processes in the link, uses less introduction cost, can provide 90 percent of medium and fine sand recovery, and has important value and significance from the aspects of environmental protection and economy.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a side cross-sectional view of the drainage device;
FIG. 4 is a schematic view of the combined state of the drainage device in the sand filtration zone;
FIG. 5 is a schematic view showing a liquid inlet portion of the drainage device in a width direction;
FIG. 6 is a partial schematic view of a through hole configuration of a lower baffle end plate of a single flow directing device;
FIG. 7 is a schematic view of the structure of the guide device;
FIG. 8 is a schematic structural view of a support rod of the tubular connecting member;
FIG. 9 is an enlarged view of a portion I of FIG. 3;
reference numbers in the figures:
1. the device comprises a box body, 101, a bottom plate, 2, a liquid inlet area, 2011, an upper flow guide end plate, 2012, a lower flow guide end plate, 201, a flow guide end plate, 3, a sand filtering area, 4, an overflow port, 5, a sinking groove, 501, a grid, 6, a zigzag slow flow ladder, 7, a liquid inlet refraction plate, 8, a liquid inlet port, 9, a sand storage inner container, 10, an inclined plate, 1001, a connecting line, 11, a drainage device, 1101, a lower arc-shaped top surface, 1102, a lower arc-shaped bottom surface, 1103, a through hole, 12, a liquid return space, 13, a guide device, 1301, a water outlet pipe, 1302, a guide column, 1303, a supporting rod, 1304, a fabric type tassel, 1305, a tubular connecting piece, 14, a sand sinking groove, 1401, a bottom sealing plate, 1402, a spring hinge, 15, a sand outlet, 16, a pipeline, 17, a slurry pump, 18, a refraction plate, 1801, a frame, 1802, a first bottom surface, 1803 and a second bottom surface;
b. c, a refraction sand filtering area, c, a natural sand filtering area, d, an advection transition area, e, a sand collecting area, f and a steady flow area;
Detailed Description
The invention is further described with reference to the following figures and embodiments.
As shown in fig. 1 to 8, a high-efficiency fine sand recovery device comprises a box body 1, wherein a liquid inlet area 2 and a sand filtering area 3 are arranged in the box body 1, the liquid inlet area 2 is arranged at one end of the box body 1 along the length direction, and an overflow port 4 is arranged at the upper part of the other end of the sand filtering area 3. Referring to fig. 2 specifically, the lower part of the outer end plate of the liquid inlet region 2 is provided with a flow guide end plate 201 which is arranged in an inward inclined manner, and the bottom of the flow guide end plate 201 is welded and fixed with the bottom plate 101 of the tank 1. Set up the opening with 1 width direction unanimity of box on the water conservancy diversion end plate 201, open the external connection of opening heavy groove 5 down, water conservancy diversion end plate 201 quilt heavy groove 5 is cut apart into down and is gone up water conservancy diversion end plate 2011 and water conservancy diversion end plate 2012 down, it connects to go up water conservancy diversion end plate 2011 sink the outer panel of groove 5 down, water conservancy diversion end plate 2012 connects down sink the inner panel of groove 5 down. Go up the inboard of water conservancy diversion end plate 2011 and set up cockscomb structure slow flow ladder 6, width direction, cockscomb structure slow flow ladder 6 is "the type structure of the moral character", and of course also can set up to "type or" type structure in other embodiments, the reposition of redundant personnel of the buffering of going into liquid that goes on in vertical and width direction makes the income liquid more gentle, even, reduces the income liquid disturbance, reduces the income liquid torrent, improves the handling capacity of treatment effeciency, effect and unit interval.
Go into liquid district 2 with set up into liquid refraction board 7 between the sand filtration district 3, go into liquid refraction board 7 and set up perpendicularly from top to bottom, go into the below of liquid refraction board 7 and connect the interior plate of lower heavy groove 5, the lower part of going into liquid refraction board 7 sets up the income liquid mouth 8 that gets into sand filtration district 3 by going into liquid district 2, in other embodiments, go into liquid mouth 8 also can set up in on the interior plate of lower heavy groove 5. The lower settling tank 5 is internally provided with a grating 501, and the filtering sand entering the lower part of the grating 501 is kept in the lower settling tank 5 in an isolated manner to a certain extent, so that the settled sand is prevented from turning upwards, and the entering liquid is subjected to primary sand filtering. The grille is arranged below the liquid inlet 8. The sand storage inner container 9 is arranged in the settling tank 5, the top parts of two sides of the sand storage inner container 9 are provided with hoisting rings, and when the sand storage inner container 9 is filled with settled sand, the sand storage inner container 9 can be hoisted out and poured and then placed for use.
The lower diversion bottom plate 2012, the sealing inclined plate 10 is arranged between the bottom plate 101 and the two side surfaces of the box body 1, an angle a is formed between the inclined plate 10 and a connecting line between the upper middle part of the advection transition area of the sand filtering area 3 and the liquid inlet 8, in this embodiment, an angle a is 70 °, certainly, in other specific embodiments, the angle a may be set to 90 degrees, and the path is more preferable. The position of a connecting line 1001 between the inclined plate 10 and the bottom plate 101 is not more than the projection position of half of the sand filtering area 2 in the length direction of the bottom plate 101. In other embodiments, one end of the sloping plate 10 may also be connected to the inner side surface of the sink tank 5 or the liquid-entering refraction plate 7.
Specifically, referring to fig. 2, fig. 3, fig. 4 and fig. 5, 8 liquid inlets 8 which are transversely and uniformly arranged are formed in the liquid inlet refraction plate 7, each liquid inlet 8 is communicated with one drainage device 11, a liquid return space 12 is formed between every two adjacent drainage devices 11, each drainage device 11 comprises a lower arc-shaped top surface 1101, a lower arc-shaped bottom surface 1102 and side surfaces located at two sides, the lower arc-shaped top surface 1101, the lower arc-shaped bottom surface 1102 and the side surfaces form a hollow structure in a surrounding mode, and the hollow structure is communicated with the liquid inlets 8. The lower settling tank 5 is arranged to filter sand in the inlet liquid for the first time on one hand, and on the other hand, after the inlet liquid passes through an inclined plane and multi-stage buffer diversion, a deeper liquid storage is arranged at the bottom of the received liquid to absorb and buffer the impact of the inlet liquid again, so that the inlet liquid of the filtering area 3 enters in an overflow mode, the longitudinal potential energy of the inlet liquid is reduced in multiple stages, the distribution of the inlet liquid in the drainage device is more gradual and uniform, and meanwhile, a plurality of liquid inlet overflow type water distribution devices are arranged on the same horizontal plane to be more uniform. As shown in fig. 2, the drainage device 11 is identical in length to the sloping plate 10 in the longitudinal direction, is disposed above the sloping plate 10, and is disposed parallel to the sloping plate 10. A liquid inlet space 13 is arranged between the upper end surface of the sloping plate 10 and the lower arc-shaped bottom surface 1102 of the drainage device 11. Set up a plurality of through-holes 1103 on the arc bottom surface 1102 down, to the swash plate 10 goes into liquid reposition of redundant personnel, goes into liquid through the even injection formula of bottom multiple spot shunting from sand filtration district 3, cuts down the impact force of going into liquid, reduces into liquid vortex, makes the most region of sand filtration district 3 keep the calm of rivers, improves filter effect and efficiency. The income liquid rivers of main part are through returning the liquid space through the refraction of swash plate 10 and move to oblique top in the direction of perpendicular to swash plate 10, and after the stratosphere, the level flows in the overflow mouth, swash plate 10 with sand filtration district 3's stratosphere go up the middle part with go into line between the liquid mouth 8 and be the a angle setting, and a in this embodiment is 70, swash plate 10 with bottom plate 101's connecting wire 1001 position is not more than 3 length direction's in sand filtration district half is in bottom plate 101's projection position reduces the end plate of 3 overflow mouth 4 one ends in sand filtration district to the refraction and the vortex of main part rivers direction, ensures the stationarity in sand filtration district 3.
The better collection water conservancy diversion to collection sand, the sand area of producing sand of carrying on transversely and vertically to settling sand down arc top 1101, the timely gathering collects the fine sand that filters out, forms the reunion effect, reduces the raise and the suspension once more, improves the entrapment rate of fine sand. The setting of swash plate 10 makes the direction of the high-efficient fine sand recovery unit's of this application liquid flow as shown in figure 2, including longer inclined plane filtering path and certain length's horizontal flow route, reduces refraction, the vortex of filtering area overflow mouth end plate, keeps the rivers stationarity of the rear end of filtering area, and the route is more optimized, reduces the disturbance to having settled sand in the box, and the fine sand entrapment rate is high.
As shown in fig. 2, 3, 6, 7 and 8, the through hole 1103 communicates with a plurality of guides 13 for guiding water to the swash plate 10, specifically, the through hole 1103 is welded downward to form a water outlet pipe 1301, the water outlet pipe 1301 is connected with a pipe connector 1305 or a pipe plug by a thread, a plurality of guide posts 1302 are arranged on the circumference of the pipe connector 1305 and in the pipe, support rods 1303 are arranged in the pipe, the support rods 1303 are arranged in a criss-cross or unidirectional manner, and the guide posts 1302 are arranged on the support rods 1303 in a cross node or unidirectional manner. The guide post 1302 takes the through hole 1103 as a center to guide and diffuse to the center and the circumference in a multi-layer mode, the angle between the guide post 1302 and the axis of the through hole is 0-45 degrees, the guide column 1302 is configured to be a structure with certain supporting strength such as a steel wire or a steel plate, a fabric tassel 1304 is arranged along the hierarchical circumference from one end to the other end of the guide column, the fabric-like tassel 1304 is arranged in a hierarchy having a length longer than that of the guide pillar 1302, and is in contact with the sloping plate 10, the tail end of the guide column 1302 is in non-contact with the sloping plate 10, a soft circulation space is reserved, installation errors are contained, hard contact and collision are avoided, and at the same time, the freedom degree of further releasing water flow at the diversion tail end increases the dispersion diversity when contacting the inclined plate 10, subdivides the liquid inlet water flow, subdivides and breaks the impact energy of the cohesive water flow, realizes liquid inlet soft landing, and reduces liquid inlet turbulent flow. The guide columns 1302 conduct directional flow guiding and water distribution on the effluent of the through holes 1103, when the guide columns are matched with tassels to conduct flexible flow guiding, large-angle flow guiding angles of the guide columns 1302 are set as much as possible, the flow of each through hole 1103 is guided to the inclined plate 10 and distributed in a large-angle and wide range as much as possible, impact energy of the influent is counteracted to the greatest extent, the soft influent is enabled, turbulent flow of the influent is reduced, meanwhile, the diameter and the flow of the through holes can be increased, the treatment efficiency is improved, the blocking rate is reduced, the grain size tolerance of sand contained in the influent is increased, the sand filtering treatment range is enlarged, and the applicability is wider. Hierarchical formula circumference sets up fabric class tassels 1304, each layer covers like the umbrellas and is established on the umbrellas of lower floor, fabric class tassels 1304 is the soft structure of porous class, soft structure can follow to the water conservancy diversion liquid wriggling and swing by furthest, each piece of tissue of the tassels of soft structure all can be in the carrier that becomes every strand of rivers that contact of certain degree of freedom within range, and certain degree realizes certain degree of freedom along with each load rivers separately, reduce strong paradox power, the energy of every strand of load rivers of maximum uninstallation, and then pass through the hierarchical transmission, more step by step will be able to, until will every strand of rivers soft release to the swash plate on. The fabric structure is porous, the water absorption is strong, the porous structure has a strong adsorption and filtration function on fine sand in water flow, the surface of the filter sand is smooth, the desorption capacity is strong under the continuous washing of the water flow, and therefore the problem of continuous blockage of fabric gaps is avoided.
The adjacent sides of the adjacent through holes 1103 and the guide columns 1302 can be mutually crossed and connected, so that the water distribution blind area is reduced, the water distribution area on the inclined plate 10 is fully utilized, the water distribution is dispersed to the maximum, the water injection turbulence is reduced to the maximum degree, and the sand filtration rate is improved.
In other specific embodiments, a plurality of through holes 1103 are arranged along the length direction of the lower arc-shaped bottom surface 1102, the distribution of the specific through holes 1103 on the lower arc-shaped bottom surface 1102 is as shown in fig. 6, the through holes 1103 on two sides are arranged in a staggered manner, and a drainage channel is formed in the middle of the lower arc-shaped bottom surface 1102. The tail of the drainage device is arranged in a closed mode, a sand settling groove 14 protruding downwards is arranged at the tail of the drainage device, as shown in fig. 2, 3 and 9, the sand settling groove 14 is communicated with the inner cavity of the drainage device 11, a bottom sealing plate 1401 is arranged at the bottom of the sand settling groove 14, and one side of the bottom sealing plate 1401 in front of the water flow along the front direction is connected with the tail sealing plate of the drainage device 11 through a spring hinge 1402. The lower arc bottom surface 1102 of the inner chamber of the drainage device 11 carries out horizontal and longitudinal gathering water conservancy diversion to the suspended sand that gets into the income liquid of the drainage device 11, makes partial fine sand get into the grit chamber 14 of bottom, and the particle sand slightly bigger to partly fail through-hole 1103 carries out earlier one step collection water conservancy diversion and gets into grit chamber 14 simultaneously, reduces "large granule sand" size standard, reduces the through-hole and divides liquid concentration. When the sand bearing amount of the grit chamber 14 is large and exceeds the bearing torsion of the hinge spring, the bottom closing plate 1401 turns over the spring hinge 1402, the bottom of the grit chamber 14 is opened, the filtered sand in the grit chamber 14 is unloaded, and the filtered sand enters the sand collecting area under the continuous water flow scouring. The unloaded bottom closing plate 1401 is folded again under the action of the spring hinge 1402 to close the grit chamber 14.
Referring to fig. 2, the sand filtering area 3 in the box body 1 is further provided with a flow stabilizing area f, a refraction sand filtering area b, a natural sand filtering area c, a advection transition area d and a sand collecting area e. The flow stabilizing area f is an area above the drainage device 11, drainage inlet liquid of the drainage device 11 drains towards the inclined plate 10 through the through hole 1103 and the guide device 13, the inlet liquid is softly landed from the bottom of the sand filtering area 3 through the guide device 13, disturbance to pool water is reduced, newly injected water flows towards the direction perpendicular to the inclined plate 10 under the counter-acting force of the inclined plate 10 to form a water flow adjusting area above the drainage device 11, and the area is also an area for stabilizing water flow. In the region, the concentration of the suspended sand is always in a high state, a natural filtering barrier is formed, the newly surged sand to be filtered is agglomerated and naturally filtered, particularly, the fine sand at the suspension critical point plays a role of a natural flocculating agent, and the retention rate is greatly improved. Part of the filter sand settled at the position falls into the lower arc-shaped top surface 1101 of the drainage device 11, the lower arc-shaped top surface 1101 has the effect of converging and conveying towards the middle and the bottom from two sides, the filter sand intercepted and settled can be converged to the sand collecting area e in time to be discharged, and the sand outlet rate is improved.
At guider 13 with the afterbody of swash plate 10, the region on bottom plate 101 upper portion is sand collection district e, sand collection district e communicates sand outlet 15, sand outlet 15 carries out the negative pressure through 16 intercommunication slurry pump 17 of pipeline and draws the sand.
The area above the sand collection area e comprises a natural sand filtering area c, the position of the natural sand filtering area c is deeper relative to the overflow port 4 and farther relative to the liquid inlet 8, and sand water enters a calm natural sedimentation process. A plurality of refraction plates 18 which are arranged in parallel are arranged in the box body 1 above the natural settling area c and the flow stabilizing area f. The refraction plate 18 is arranged in the frame 1801, the frame 1801 is arranged on the box body 1 of the sand filtering area 3, the arrangement of the lower bottom surfaces of the refracting plates 18 is divided into a first flush bottom surface 1802 and a second flush bottom surface 1803, the first bottom surface 1802 is positioned above the steady flow area f, the first bottom surface 1802 is obliquely arranged, the inclination is basically consistent with that of the inclined plate 10, the included angle is 0-15 degrees, so that the liquid can fully and uniformly pass through the steady flow area f, when the water flow passes through the refraction plate 18, the water flow basically enters a directional running path with the same inclination direction as the refraction plate 18, the impact energy of the water flow on the refraction plate 18 is reduced, the stability of the water flow is improved, the suspended sand in the water flow is diverged from the running path of the water flow under the action of gravity, when touching the refraction plate 18, the sand filter generates adhesion and sedimentation, thereby generating an agglomeration effect and improving the sand filtering effect of the sedimentation of the refraction plate 18. The second bottom surface 1803 is located above the natural sand filtering area c, and the second bottom surface 1803 and the bottom plate 101 are arranged in parallel or at an included angle of 0-15 degrees. The inclined direction of the refraction plate 18 is consistent with the inclined direction of the inclined plate 10 along the vertical surface of the width direction of the box body 1, or the inclined direction is arranged at an included angle of 0-5 degrees. The upper top surface of the refraction plate 18 is arranged horizontally and in parallel, the upper top surface is positioned below the lowest point of the overflow port 4, and an advection transition area d is formed between the upper top surface of the refraction plate 18 and the lowest point of the overflow port 4. The liquid entering from the liquid inlet 8 is buffered and distributed by the drainage device 11, so that most of the impact of the liquid entering is reduced, and most of the turbulence of the liquid entering is reduced. The liquid enters the inclined plate 10 and then reversely continues to move upwards in the direction perpendicular to the inclined plate 10, after the liquid is filtered and stabilized by the natural barrier in the stabilizing zone c, the water flow carries the non-intercepted suspended sand to enter the refraction plate area, the motion track of the non-intercepted suspended sand diverges from the water flow direction under the action of the dead weight and the interception action of the refraction plate 18 in the process of moving upwards obliquely, and the re-precipitation interception is formed on the refraction plate 18. The incline direction of refraction board 18 with the incline direction of swash plate 10 along the perpendicular of 1 width direction of box is unanimous, or is 0 ~ 5 contained angle setting, and the direction of rivers is unanimous basically with the direction of refraction board 18, produces the vortex less, helps the steady of rivers, more is favorable to subsiding of fine sand.
The invention is suitable for the fine sand recycling link of the washed sand water, the direct dehydration from the screening equipment or the overflow water from the sand washer in the sand washing process. The high-efficiency fine sand recovery device can be arranged in a miniaturized and low-cost manner, is used in a continuous process link of continuous liquid-entering sand washing or wet screening, does not change other devices and processes in the link, uses less introduction cost, can recover 90 percent of medium and fine sand, and has important value and significance from the aspects of environmental protection and economy.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a continuation tip concentrates high-efficient fine sand recovery unit of income liquid which characterized in that: comprises a box body and a plurality of connecting rods,
a liquid inlet area and a sand filtering area are arranged in the box body in a separation mode along the length direction, an overflow port is arranged at the upper part of one end, away from the liquid inlet area, in the sand filtering area, a liquid inlet is arranged at the lower part between the liquid inlet area and the sand filtering area, and the liquid inlet is communicated with a plurality of drainage devices which are arranged in parallel at intervals along the width direction of the box body;
an inclined plate for bearing liquid is arranged below a liquid inlet in the sand filtering area, one end of the inclined plate is connected with a bottom plate of the box body, the inclined plate is arranged at an angle a with a connecting line between the upper middle part of the sand filtering area and the liquid inlet, the angle a is 60 degrees less than a <120 degrees, and the position of a connecting line between the inclined plate and the bottom plate is not more than the projection position of half of the length direction of the sand filtering area on the bottom plate;
the drainage device is of a closed hollow structure and at least comprises a lower arc-shaped top surface and a lower arc-shaped bottom surface, one end of the hollow mechanism is communicated with the liquid inlet, and the drainage device is not longer than the inclined plate in length direction, is arranged above the inclined plate and is parallel to the inclined plate;
the lower arc-shaped bottom surface is provided with a plurality of through holes, the through holes are connected with a plurality of guiding devices for guiding the water to the inclined plate, the guiding devices comprise guiding columns arranged in a plurality of directions in a guiding manner, the guiding columns are covered with soft water-absorbing winding materials, and at least the tail parts of the winding materials are in contact with the inclined plate;
the sand filtering device is characterized in that a refraction sand filtering area is arranged at the middle upper part of the sand filtering area, the refraction sand filtering area comprises a plurality of refraction plates which are arranged in parallel, the arrangement structure of the lower bottom surfaces of the refraction plates forms a first parallel bottom surface and a second parallel bottom surface, the first bottom surface is positioned above the drainage device and forms an included angle of 0-15 degrees with the inclined plate, the second bottom surface is positioned above the bottom plate, and the second bottom surface and the bottom plate form an included angle of 0-15 degrees;
the refraction plate and the inclined plate are arranged at an included angle of 0-5 degrees along the vertical plane of the width direction of the box body, the upper top surface of the refraction plate is horizontally and neatly arranged, and the upper top surface is located below the lowest point of the overflow port.
2. The high-efficiency fine sand recovery device with concentrated liquid entering at the end part continuously as claimed in claim 1, wherein: drainage device top with set up the stationary flow space between the first bottom surface, guider with the afterbody of swash plate the region on bottom plate upper portion sets up the sand collection space, sand collection space intercommunication the sand outlet of bottom half, sand outlet carries out the negative pressure through pipeline intercommunication sediment stuff pump and pulls out the sand, sand collection space top extremely set up natural sand filtering area between the second bottom surface, the last top surface of refraction board with set up the advection transition district between the overflow mouth.
3. The high-efficiency fine sand recovery device with concentrated liquid entering at the end part continuously as claimed in claim 1, wherein: the lower part of the outside end plate of income liquid district sets up the water conservancy diversion end plate that the leanin set up, the bottom of water conservancy diversion end plate and the bottom plate welded fastening of box, set up the opening unanimous with box width direction on the water conservancy diversion end plate, the outside sealing connection of opening sinks the groove, sink and set up the grid in the groove, the income liquid overflow formula equipartition in the sink gets into go into the liquid mouth, set up in the sink and store up the sand inner bag, the both sides top of storing up the sand inner bag sets up the hoist and mount ring.
4. The high-efficiency fine sand recovery device with concentrated liquid entering at the end part continuously as claimed in claim 3, wherein: sink groove upper portion the inboard of water conservancy diversion end plate sets up cockscomb structure slow flow ladder, width direction, the cockscomb structure slow flow ladder is "type or" type structure ".
5. The high-efficiency fine sand recovery device with concentrated liquid entering at the end part continuously as claimed in claim 1, wherein: the winding is a fabric tassel.
6. The high-efficiency fine sand recovery device with concentrated liquid entering at the end part continuously as claimed in claim 1, wherein: the guide posts respectively use the through holes as centers to conduct multi-level flow guiding diffusion to the center and the circumference, the angle between each guide post and the axis of each through hole is 0-45 degrees, and the guide posts on the adjacent sides of the adjacent through holes are mutually crossed and connected.
7. The high-efficiency fine sand recovery device with concentrated liquid entering at the end part continuously as claimed in claim 1, wherein: follow the length direction of arc bottom surface sets up two down the through-hole is listed as the through-hole is crisscross to be set up, is listed as between the through-hole the arc bottom surface includes curved lowest department down at least.
8. The high-efficiency fine sand recovery device with concentrated liquid entering at the end part continuously as claimed in claim 1, wherein: the tail of the drainage device is sealed, a downward convex sand settling groove is formed in the tail of the drainage device, the sand settling groove is communicated with an inner cavity of the drainage device, a bottom sealing plate is arranged at the bottom of the sand settling groove, and one side of the bottom sealing plate, which is ahead along water flow, is connected with the tail sealing plate of the drainage device through a spring hinge.
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| CN202210220761.2A CN114602240B (en) | 2022-03-08 | 2022-03-08 | High-efficient fine sand recovery unit of liquid is concentrated to sustainability tip |
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| CN114602240B (en) | 2023-09-26 |
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