CN205217147U - Little dry heat -extraction system of fine grain grade tailing - Google Patents

Abstract

The utility model relates to a little dry heat -extraction system of fine grain grade tailing, including the pressure filter, slag separation sieve, the agitator tank, the sediment stuff pump, filter and disk hydroextractor, little fine grain grade tailing links to each other with slag separation sieve's entry, slag separation sieve's subsieve fraction export links to each other with the entry of agitator tank, the export of agitator tank links to each other with the entry of sediment stuff pump, the entry linkage of sediment thick liquid delivery side of pump and filter, the export of filter links to each other with the feed inlet of disk hydroextractor, the housing sand setting export of disk hydroextractor links to each other with the feed inlet of pressure filter, the housing overflow export of disk hydroextractor links to each other with return water pipe with the export of the filter -pressing clear water of pressure filter jointly. This little dry heat -extraction system of fine grain grade tailing, area is little, need not the flocculating agent, and it is efficient to dewater.

Description

A kind of micro-size fraction dry-discharge system for tailings

Technical field

The utility model relates to a kind of ore-sorting system, and particularly a kind of micro-size fraction dry-discharge system for tailings, belongs to ore pulp processing technology field.

Background technology

By the end of the end of the year 2013, China's mine tailing accumulation volume of cargo in storage will reach 14,600,000,000 tons.China's mine tailing generation 16.49 hundred million tons in 2013, increases by 1.73% on a year-on-year basis.The mode process that mine tailing many employings Tailings Dam in large-scale regular mine is deposited, totally unfavorable to environmental protection, potential safety hazard is large, and take a large amount of arable land, recycling water utilization rate is low, and Tailings Dam maintenance cost is high.Current ore resource generally has the features such as poor, thin, assorted, and namely the grade of ore is low, disseminated grain size thin, complicated occurrence state, therefore needs pulverizing and jevigating to sort and just can obtain high-grade concentrate, produces a large amount of moisture micro-size fraction mine tailings after ore dressing simultaneously.

In current tailing dry-type emission technology, for micro-size fraction mine tailing, normal adopt concentrator and the combined technique of filter press.Concentrator, primarily of upper box body and bottom cone composition, containing tilting swash plate cohort in upper box body, has through overflow launder above swash plate cohort.The underflow of mine tailing after concentrator concentrates enters filter press and dewaters, and tailing heap transported to by the filter cake that the mineral aggregate after dehydration forms water content 10 ~ 23%, and the water that filter press is deviate from returns reuse together with the overflow water of concentrator.

Because subparticle sinking speed in gravitational field is very slow, the concentrator for micro-size fraction tailing dry row operation needs the sedimentation time grown very much, and production efficiency is very low, and concentrated effect is poor, and cause floor space large, cost of investment is high.In order to enhance productivity, more swash plate need be set.Use middle swash plate yielding, aging, overflow is easily run slightly, sometimes needs multistage process or coordinates appropriate selective flocculant, weighting ring environment pollution, and factory's backwater reuse is selected in impact.

Utility model content

The purpose of this utility model is, overcomes problems of the prior art, and provide a kind of micro-size fraction dry-discharge system for tailings, floor space is little, and without the need to flocculant, dewatering efficiency is high.

For solving above technical problem, a kind of micro-size fraction dry-discharge system for tailings of the present utility model, comprise filter press, every ballast screen, agitator tank, Pulp pump, filter and disk type dehydrator, micro-size fraction mine tailing is connected with the described entrance every ballast screen, the described outlet of the screenings every ballast screen is connected with the entrance of described agitator tank, the outlet of described agitator tank is connected with the entrance of described Pulp pump, the outlet of described Pulp pump is connected with the entrance of described filter, the outlet of described filter is connected with the charging aperture of described disk type dehydrator, the case sand setting outlet of described disk type dehydrator is connected with the charging aperture of described filter press, the case overflow outlet of described disk type dehydrator is connected with water return pipeline jointly with the press filtration clear water output of described filter press.

Relative to prior art, the utility model achieves following beneficial effect: micro-size fraction mine tailing enters 0.5mm and removes large slag every ballast screen; The mine tailing removed after large slag enters in agitator tank keeps in and stirs evenly, and stirs evenly to be sent into 0.8mm filter by Pulp pump and carry out filtration impurity elimination afterwards; Mine tailing after impurity elimination enters disk type dehydrator and carries out concentrated operation, obtains thickening mineral slurries and dewaterer overflow water; Thickening mineral slurries enters filter press and dewaters, and the filter cake that mineral aggregate after dehydration forms water content 10 ~ 23% is transported to tailing heap and stored up, the clear water that filter press is deviate from together with dewaterer overflow water as backwater reuse.Compared with the concentrator traditional with employing is concentrated, disk type dehydrator floor space of the present utility model is little, production efficiency is high, invest low, thickening efficiency is high, substantially increases dewatering efficiency, without the need to adopting multi-stage series or parallel connection, also without the need to adding flocculant, reducing reagent cost and being conducive to reducing the pollution to environment, the composition of flocculant can not be brought in backwater and affect mineral processing index.The utility model micro-size fraction dry-discharge system for tailings, technological process is simple and reliable, and unit are disposal ability is large, and same treatment amount floor space is only about 1/18 of concentrator, and achieve the rapid concentration operation of mine tailing, operational efficiency is high.Tailings Slurry can reach 3 ~ 6 through concentrated operation concentration ratio, and the overflow water of concentrated operation, admittedly containing thing <0.15%, wherein contains thing particle diameter <1.5 μm admittedly.

As improvement of the present utility model, described disk type dehydrator comprises rotary drum case and is positioned at the drum assembly of rotary drum case inner chamber, described rotary drum case is surrounded by superposed water outlet case and the sand setting case that is positioned at bottom and forms, the top of described water outlet case be fornix shape and top center by water outlet case top closure, the bottom, periphery of described water outlet case is provided with case overflow outlet, and the bottom, periphery of described sand setting case is provided with the outlet of described case sand setting; The center of described water outlet case top cover is plugged with feed pipe, and the axis of the lower end edge drum assembly of described feed pipe is inserted into the inner chamber bottom of drum assembly; The mid diameter maximum of described drum assembly is evenly distributed with the outlet of multiple rotary drum sand setting, and described rotary drum sand setting outlet is exported with described case sand setting and is connected by runner; The top of described drum assembly is circumferentially evenly distributed with multiple rotary drum clear water output, and described rotary drum clear water output is exported with described case overflow and is connected by runner; The bottom centre of described drum assembly is fixed on the armature spindle upper end of mair motor, and described mair motor is fixed on the inner chamber of base, and the upper port of described base is fixedly connected with the lower end of described sand setting case.When 1. working, drum assembly High Rotation Speed under the driving of mair motor produces very large centrifugal force, rotary drum case and feed pipe transfixion, material enters the inner chamber bottom of drum assembly by feed pipe, under the influence of centrifugal force, after the runner entering drum assembly carries out rotating separation, after clear water is discharged from the rotary drum clear water output on drum assembly top, the case overflow arriving bottom, water outlet case periphery through runner exports and discharges; After particle is discharged from the outlet of the rotary drum sand setting of drum assembly mid diameter maximum, the case sand setting arriving bottom, sand setting case periphery through runner exports and discharges, and so achieves being separated of clear water and particle.2. dewaterer of the present utility model self contains power source, drum assembly High Rotation Speed, produces powerful centrifugal force field, and can accelerate the sedimentation separation of microfine, production efficiency is high, and dehydration precision is high, and treating capacity is large.3. dewaterer floor space of the present utility model is little, and the costs such as equipment investment and capital construction stringing are low.4. the built-in and Direct driver drum assembly of mair motor, has greatly saved drive disk assembly, has made equipment compacter, greatly reduced gross weight and the appearance and size of equipment, be convenient to whole Transporting and lifting, saved manufacturing cost.5. dewaterer of the present utility model is outside forms a closed entirety by base, sand setting case and water outlet case are stacked successively, and external without any rotary part, security is good, and profile is succinctly attractive in appearance.6. drum assembly of the present utility model and mair motor coaxial line, rotation portion entirety state axisymmetricly, be conducive to equipment and keep dynamic balancing when High Rotation Speed, the force-bearing situation of bearing portion is good, long service life.7. compared with traditional with employing lamella thickener dewaters, disk type dehydrator floor space of the present utility model is little, production efficiency is high, invest low, dehydration thoroughly, simplifies dewatering process flow, substantially increase the rate of recovery of object metal, without the need to adopting multistage to dewater, also without the need to adding flocculant, reducing reagent cost and being conducive to reducing the pollution to environment.

As further improvement of the utility model, the inner chamber of described water outlet case is provided with water outlet inner casing, described water outlet inner casing envelope is in the upper periphery of described drum assembly, and the top of described water outlet inner casing is connected with inner casing apical ring, and described inner casing apical ring is positioned at the lower outer of described rotary drum clear water output; Be interconnected by clear water discharge-ring between described water outlet inner casing and described water outlet case, described clear water discharge-ring to round and minimum position to export with described case overflow and docks along the chuck of described water outlet case in the shape of a spiral; The inner chamber of described sand setting case is provided with sand setting inner casing, described sand setting inner casing envelope is in the lower, outer perimeter of described drum assembly, the top of described sand setting inner casing is positioned at inside the below of described rotary drum sand setting outlet, be interconnected by sand setting discharge-ring between described sand setting inner casing and described sand setting case, described sand setting discharge-ring to round and minimum position to export with described case sand setting and docks along the chuck of described sand setting case in the shape of a spiral.When dewaterer is in running order, drum assembly High Rotation Speed, after clear water is discharged from the rotary drum clear water output on drum assembly top, outwards fly out under huge centrifugal action, cross the endoporus of inner casing apical ring, enter in the chuck between water outlet case and water outlet inner casing, drop on clear water discharge-ring, rotate descending along clear water discharge-ring, the minimum position of clear water discharge-ring exports with case overflow docks, and is discharged by clear water.After the rotary drum sand setting outlet of particle in the middle part of drum assembly is discharged, outwards fly out under huge centrifugal action, enter in the chuck between sand setting case and sand setting inner casing, drop on sand setting discharge-ring, rotate descending along sand setting discharge-ring, the minimum position of sand setting discharge-ring exports with case sand setting docks, and is discharged by particle.When dewaterer needs cleaning, stop material supply, clear water enters from feed pipe, drum assembly rotates a period of time under remaining on fast state, the inner chamber of clear water to material flow path and drum assembly washs, and then clear water flies out from rotary drum clear water output and the outlet of rotary drum sand setting, clear water discharge-ring and sand setting discharge-ring is cleaned up respectively, clear water discharge-ring and sand setting discharge-ring whole process do not have dead angle, are easily cleaned up.Then reduce the rotating speed of drum assembly, centrifugal force diminishes, and the water outlet of rotary drum clear water output falls from the endoporus of inner casing apical ring, and the outer wall along drum assembly flows, and cleans from top to bottom to the outer wall of drum assembly.The top of sand setting inner casing is positioned at inside the below at drum assembly maximum gauge place, and rinse water is dropped on sand setting discharge-ring.

As further improvement of the utility model, the bottom centre region of described drum assembly is upwards recessed to form up-small and down-big and is the rotary drum cavity in isosceles trapezoid cross section, in described rotary drum cavity, rotary drum fan is installed, described rotary drum fan is the low taper in height periphery, center, and the center of described rotary drum fan is fixed on the armature spindle of described mair motor; The inner chamber of described base is provided with the base inner casing with base coaxial line, be interconnected by base gusset between described base inner casing and the internal perisporium of base, the upper end cover of described mair motor stretches out the periphery of motor body and is fixedly connected in the upper port of described base inner casing, described mair motor upper end cover is circumferentially evenly distributed with multiple motor upper cover air vent, the fresh air inlet that the inner chamber lower circumference of described base being respectively equipped with multiple and described base inner casing communicates near outer rim; The highest portion position of described sand setting discharge-ring is lower than the upper limb of described sand setting inner casing; The below of described rotary drum fan is provided with drip tray, described drip tray is low inside and high outside taper, the inner edge of described drip tray is provided with the flanging upwards bent, described flanging embeds in the annular groove of described rotary drum fan lower surface, the periphery of described drip tray is provided with the annular deep gouge to lower recess, the middle part of described sand setting inner casing short transverse is provided with spilled water hole, described spilled water hole communicates with the bottom of described annular deep gouge, and the axis that the axis of described spilled water hole and described case sand setting export is positioned at same perpendicular.Because mair motor is underlying, mair motor region can not have water droplet to enter, when drum assembly during High Rotation Speed, under centrifugal action, flies out outside current direction under mair motor drives; Rotary drum fan is also with the armature spindle High Rotation Speed of mair motor simultaneously, air-flow enters the inner chamber of base inner casing from the fresh air inlet of base lower circumference, the superjacent air space of mair motor is entered again from motor upper cover air vent, under the effect of rotary drum fan, upwards blow out from the gap between base inner casing top and drum assembly, stop water droplet to fall from here.When equipment is in cleaning state, rinse water drops on sand setting discharge-ring, a small amount of water droplet can flow downward to the lowest part of drum assembly along the outer wall of drum assembly, then fall on drip tray, because drip tray is low inside and high outside taper and inner edge is provided with the flanging upwards bent, all water droplets can outwards flow in annular deep gouge, then fall to sand setting discharge-ring from the spilled water hole sand setting inner casing.The water height of annular deep gouge is enough to ensure the mobilization dynamic to spilled water hole, and drip tray can not be made to produce overflow.The sand setting discharge-ring in case sand setting exit is in extreme lower position, and spilled water hole is located at and can keeps maximum drop with sand setting discharge-ring herein, avoids the annular of the current direction on sand setting discharge-ring deep gouge to pour in down a chimney.

As further improvement of the utility model, described drum assembly comprises rotary drum body, and described rotary drum body is the cydariform that upper and lower two ends diameter is little, middle part diameter is large; The inner chamber of described rotary drum body is provided with the swash plate support with rotary drum body coaxial line, and the center of described swash plate support is provided with up-small and down-big conically shaped, and the lower end of described feed pipe is inserted into the inner chamber bottom of described conically shaped; The periphery, bottom of described conically shaped is connected with up-small and down-big conical floor, and the lower edge of described conical floor is supported on the inwall of described rotary drum body, leaves charging space between the below of described conical floor and the bottom of described rotary drum body; The outer wall of described conically shaped is radially evenly provided with the outer gusset of many conically shapeds, and form upper circulation road respectively between the outer gusset of adjacent two conically shapeds, the upper end of described upper circulation road communicates with corresponding described rotary drum clear water output respectively; The top of described conical floor is stacked with multiple up-small and down-big and taper swash plate that shape size is identical successively, the upper surface of each taper swash plate is provided with multiple tracks and is radially uniformly distributed and highly equal fin, the outer gusset one_to_one corresponding of described fin and described conically shaped and be positioned in identical phase place, the inner periphery of each taper swash plate is fixed on the outer gusset of described conically shaped by keyway; Be respectively equipped with swash plate through hole between the lower end of fin described in adjacent two, each swash plate through hole is distributed in circumferentially same; The lower circumference of described conical floor is provided with multiple chassis through hole, described chassis through hole and described swash plate through hole one_to_one corresponding and mutually through; Swash plate gland is pressed with above the taper swash plate of top layer, the periphery of described swash plate gland is fixed in the upper port of described rotary drum body, the centre of described swash plate gland protrudes upward outside described inner casing apical ring, the upper port of described swash plate gland is provided with and overflows lid, the described centre overflowing lid is higher than lower circumference, the described lower circumference overflowing lid is fixed in the upper port of described swash plate gland, overflows the lower circumference of lid and level points to outside described in each described rotary drum clear water output is arranged in.The horn mouth of conically shaped lower end plays the effect of diffusion material, bottom conically shaped, the conical floor of periphery plays the effect supporting taper swash plate, conical floor and swash plate gland carry out axial location to taper swash plate heap jointly, and the outer gusset of each conically shaped carries out centralized positioning to taper swash plate heap and carries out radial location by key; The bottom of arrival conically shaped after material flows out from feed pipe, enter the underlying space of conical floor under the influence of centrifugal force, then each chassis through hole and swash plate through hole is upward through, settlement space is formed between two taper swash plates, the lower surface of particle each taper swash plate because particle diameter is deposited in more greatly, and to the large end flowing of taper swash plate under centrifugal action, then depart from taper swash plate and flow out from each rotary drum sand setting outlet; Clear water is because the less gap between taper swash plate of particle diameter is to overflow, and the upper circulation road from each conically shaped between gusset upwards flows, and finally flows out from overflowing lid each rotary drum clear water output circumferentially.The fin of each taper swash plate upper surface makes to keep equal distance between taper swash plate, the space between taper swash plate is divided into some deciles simultaneously, and the upper circulation road separately between gusset outer with conically shaped is corresponding to be communicated with; Form swash plate heap because drum assembly adopts multiple thinner taper swash plate to be superimposed, significantly increase settling area, improve output; Simultaneously due to the High Rotation Speed of drum assembly, be beneficial to centrifugation and the discharge of particle, greatly improve dewatering efficiency.

As further improvement of the utility model, described in overflow between the centre of lid and lower circumference and be connected as a single entity by overflowing the lid conical surface, described in overflow on the lid conical surface and be evenly distributed with multiple jet orifice; Described water outlet case top cover points to described jet orifice position corresponding be circumferentially at least provided with a visor.After material enters conically shaped bottom from feed pipe, to the flowing underneath of conical floor under centrifugal action; If but the feed rate of feed pipe is excessive, exceed the disposal ability of disk type dehydrator, material upwards will choke along conically shaped, upwards spray from the jet orifice overflowed the lid conical surface, be mapped on visor, operating personnel can observe this phenomenon from device external, suitably reduce feed rate, thus both can ensure that dewaterer worked under comparatively large discharge, flow excess load can be avoided again.

As further improvement of the utility model, the armature spindle upper end of described mair motor is connected with up-small and down-big deflection cone, and the lower surface of described deflection cone is pressed on the diapire of described rotary drum body; Radially evenly be provided with multiple tracks charging shunting gusset in the inner chamber of described conically shaped and the underlying space of described conical floor and the underlying space of conically shaped inner chamber and described conical floor is separated into multiple independently charging runner; Described charging shunting gusset and described conically shaped gusset one_to_one corresponding and be positioned in identical phase place outward, the lower end of each described charging runner is communicated with described swash plate through hole one_to_one corresponding respectively; Lower disc is provided with between the described taper swash plate of bottom and described conical floor, be provided with disc between the described taper swash plate of top layer and described swash plate gland, described lower disc be circumferentially respectively equipped with disc through hole with described swash plate through hole one_to_one corresponding and mutually through.Deflection cone can reduce material to resistance during conical floor flowing underneath, and material flow path is divided into multiple unit by the fin on charging shunting gusset, taper swash plate and the outer gusset of conically shaped, makes between each unit separate, avoids the disorder in flow field.The upper and lower surface of upper disc and lower disc can be parallel to each other, also can be in a certain angle, changes the upper disc of different angles and lower disc, the drift angle of taper swash plate can be changed, to adapt to different mineral better, substantially increase the versatility of dewaterer, reduce equipment investment.

As further improvement of the utility model, described in overflow lid and described swash plate gland upper port between be provided with overflow and regulate plate, described overflow regulates between the inner periphery of plate and the outer wall of described conically shaped and leaves gap.Overflow regulates plate to the insertion depth of overflow ducts, determine the uninterrupted of clear water, overflow flow velocity is avoided to cause dehydration insufficient too soon, the overflow changing different size regulates plate, just can adapt to different mineral better, substantially increase the versatility of dewaterer, reduce equipment investment.

As further improvement of the utility model, be separately installed with sand setting nozzle in described rotary drum sand setting outlet, the inner termination of described sand setting nozzle is embedded with anti-wearing liner respectively, the inner face of described anti-wearing liner is respectively equipped with bush ring connected in star.Because the wearing and tearing of particle to sand setting nozzle are larger, the inner termination of sand setting nozzle arranges the service life that anti-wearing liner can extend sand setting nozzle; In use, amass in bush ring connected in star and expired ore pulp material, first ore pulp deposit bears the impact of particle to equipment, defines with the situation of thing mill thing, extends the service life of sand setting nozzle further.

As further improvement of the utility model, the bottom excircle of described rotary drum body is provided with rotary drum body counterweight tank, the middle part outer step of described swash plate gland is provided with gland counterweight tank, described rotary drum body counterweight tank and described gland counterweight tank respectively with described rotary drum body coaxial line, and be T-slot.Setting-in balancing weight in rotary drum body counterweight tank and gland counterweight tank, can regulate the dynamic balancing of rotary drum body easily, reduces dewaterer vibration at work, the service life of extension device.

Accompanying drawing explanation

Be described in further detail the utility model below in conjunction with the drawings and specific embodiments, accompanying drawing only provides reference and explanation use, is not used to limit the utility model.

Fig. 1 is the flow chart of the utility model micro-size fraction dry-discharge system for tailings.

Fig. 2 is the front view of disk type dehydrator in the utility model.

Fig. 3 is the top view of Fig. 2.

Fig. 4 is the left view of Fig. 2.

Fig. 5 is the sectional view along A-A in Fig. 3.

Fig. 6 is the enlarged drawing at B position in Fig. 5.

Fig. 7 is the stereogram of disk type dehydrator in the utility model.

Fig. 8 is the runner schematic diagram of the overflow discharging ring of disk type dehydrator.

Fig. 9 is the three-dimensional exploded view of disk type dehydrator in the utility model.

Figure 10 is the three-dimensional exploded view of drum assembly.

In figure: S1. is every ballast screen; T1. agitator tank; B1. Pulp pump; L1. filter; D1. disk type dehydrator; Y1. filter press; G1. water return pipeline; 1. base; 1a. base inner casing; 1b. base gusset; 1c. fresh air inlet; 2. mair motor; 2a. armature spindle; 2b. deflection cone; 2c. motor upper cover air vent; 3. drip tray; 3a. annular deep gouge; 4. rotary drum fan; 5. rotary drum body; 5a. rotary drum underflow opening; 5b. underflow nozzle; 5b1. anti-wearing liner; 5b2. bush ring connected in star; 5c. rotary drum body counterweight tank; 6. conically shaped; The outer gusset of 6a. conically shaped; 6b. charging shunting gusset; 7. conical floor; 8. descend disc; 9. taper swash plate; 9a. swash plate through hole; 10. go up disc; 11. swash plate glands; 11a. gland counterweight tank; 12. overflow lid; 12a. rotary drum overfall; 12b. jet orifice; 12c. overflow regulates plate; 13. feed pipes; 13a. feed pipe flinger ring; 14. overflow cases; 14a. overflow case top cover; The overflow of 14b. case exports; 15. overflow inner casings; 15a. inner casing apical ring; 16. overflow discharging rings; 17. visors; 18. underflow cases; 18a. case sand setting exports; 19. underflow inner casings; 19a. spilled water hole; 20. underflow discharging rings; 21. terminal boxes.

Detailed description of the invention

As shown in Figure 1, micro-size fraction dry-discharge system for tailings of the present utility model comprises filter press Y1, every ballast screen S1, agitator tank T1, Pulp pump B1, filter L1 and disk type dehydrator D1, micro-size fraction mine tailing is connected with the entrance every ballast screen S1, screenings outlet every ballast screen S1 is connected with the entrance of agitator tank T1, the outlet of agitator tank T1 is connected with the entrance of Pulp pump B1, the outlet of Pulp pump B1 is connected with the entrance of filter L1, the outlet of filter L1 is connected with the charging aperture of disk type dehydrator D1, the case sand setting outlet of disk type dehydrator D1 is connected with the charging aperture of filter press Y1, the case overflow outlet of disk type dehydrator D1 is connected with water return pipeline G1 jointly with the press filtration clear water output of filter press Y1.

Micro-size fraction mine tailing enters 0.5mm and removes large slag every ballast screen S1; The mine tailing removed after large slag enters in agitator tank T1 keeps in and stirs evenly, and stirs evenly to be sent into 0.8mm filter L1 by Pulp pump B1 and carry out filtration impurity elimination afterwards; Mine tailing after impurity elimination enters disk type dehydrator D1 and carries out concentrated operation, obtains thickening mineral slurries and dewaterer overflow water; Thickening mineral slurries enters filter press Y1 and dewaters, and the filter cake that mineral aggregate after dehydration forms water content 10 ~ 23% is transported to tailing heap and stored up, the clear water that filter press Y1 deviates from together with dewaterer overflow water as backwater reuse.

As shown in Fig. 2 to Figure 10, disk type dehydrator D1 of the present utility model comprises rotary drum case and is positioned at the drum assembly of rotary drum case inner chamber, rotary drum case is surrounded by superposed water outlet case 14 and the sand setting case 18 that is positioned at bottom and forms, the top of water outlet case 14 is fornix shape and top center is closed by water outlet case top cover 14a, the bottom, periphery of water outlet case 14 is provided with case overflow outlet 14b, and the bottom, periphery of sand setting case 18 is provided with case sand setting outlet 18a; The center of water outlet case top cover 14a is plugged with feed pipe 13, and the axis of the lower end edge drum assembly of feed pipe 13 is inserted into the inner chamber bottom of drum assembly; The mid diameter maximum of drum assembly is evenly distributed with multiple rotary drum sand setting outlet 5a, and rotary drum sand setting outlet 5a is exported 18a with case sand setting and is connected by runner; The top of drum assembly is circumferentially evenly distributed with multiple rotary drum clear water output 12a, and rotary drum clear water output 12a and case overflow are exported 14b and be connected by runner; The bottom centre of drum assembly is fixed on the armature spindle 2a upper end of mair motor 2, and mair motor 2 is fixed on the inner chamber of base 1, and the upper port of base 1 is fixedly connected with the lower end of sand setting case 18, and the periphery of base 1 is provided with terminal box 21.

The inner chamber of water outlet case 14 is provided with water outlet inner casing 15, and water outlet inner casing 15 envelope is in the upper periphery of drum assembly, and the top of water outlet inner casing 15 is connected with inner casing apical ring 15a, and inner casing apical ring 15a is positioned at the lower outer of rotary drum clear water output 12a; Be interconnected by clear water discharge-ring 16 between water outlet inner casing 15 and water outlet case 14, clear water discharge-ring 16 to round and minimum position and case overflow export 14b docks along the chuck of water outlet case 14 in the shape of a spiral; The inner chamber of sand setting case 18 is provided with sand setting inner casing 19, sand setting inner casing 19 envelope is in the lower, outer perimeter of drum assembly, the top of sand setting inner casing 19 is positioned at inside the below of rotary drum sand setting outlet 5a, be interconnected by sand setting discharge-ring 20 between sand setting inner casing 19 and sand setting case 18, sand setting discharge-ring 20 to round and minimum position and case sand setting export 18a docks along the chuck of sand setting case 18 in the shape of a spiral.

During work, drum assembly produces very large centrifugal force with 2800 ~ 3300rpm High Rotation Speed under the driving of mair motor 2, rotary drum case and feed pipe 13 transfixion, material enters the inner chamber bottom of drum assembly by feed pipe 13, under the influence of centrifugal force, after the runner entering drum assembly carries out rotating separation, after clear water is discharged from the rotary drum clear water output 12a on drum assembly top, the case overflow outlet 14b arriving bottom, water outlet case 14 periphery through runner also discharges; After particle is discharged from the rotary drum sand setting of drum assembly mid diameter maximum outlet 5a, the case sand setting outlet 18a arriving bottom, sand setting case 18 periphery through runner also discharges, and so achieves being separated of clear water and particle.

When dewaterer is in running order, drum assembly High Rotation Speed, after clear water is discharged from the rotary drum clear water output 12a on drum assembly top, outwards fly out under huge centrifugal action, cross the endoporus of inner casing apical ring 15a, enter in the chuck between water outlet case 14 and water outlet inner casing 15, drop on clear water discharge-ring 16, rotate descending along clear water discharge-ring 16, minimum position and the case overflow of clear water discharge-ring 16 export 14b and dock, and are discharged by clear water.After the rotary drum sand setting outlet 5a of particle in the middle part of drum assembly discharges, outwards fly out under huge centrifugal action, enter in the chuck between sand setting case 18 and sand setting inner casing 19, drop on sand setting discharge-ring 20, rotate descending along sand setting discharge-ring 20, minimum position and the case sand setting of sand setting discharge-ring 20 export 18a and dock, and are discharged by particle.

When dewaterer needs cleaning, stop material supply, clear water enters from feed pipe 13, drum assembly rotates a period of time under remaining on fast state, the inner chamber of clear water to material flow path and drum assembly washs, then clear water flies out from rotary drum clear water output 12a and rotary drum sand setting outlet 5a, clear water discharge-ring 16 and sand setting discharge-ring 20 is cleaned up respectively.Then reduce the rotating speed of drum assembly, centrifugal force diminishes, and the water outlet of rotary drum clear water output 12a falls from the endoporus of inner casing apical ring 15a, and the outer wall along drum assembly flows, and cleans from top to bottom to the outer wall of drum assembly.The top of sand setting inner casing 19 is positioned at inside the below at drum assembly maximum gauge place, and rinse water is dropped on sand setting discharge-ring 20.

The bottom centre region of drum assembly is upwards recessed to form up-small and down-big and is the rotary drum cavity in isosceles trapezoid cross section, rotary drum fan 4 is installed in rotary drum cavity, the taper that rotary drum fan 4 is low in height periphery, center, the center of rotary drum fan 4 is fixed on the armature spindle 2a of mair motor 2; The inner chamber of base 1 is provided with the base inner casing 1a with base coaxial line, be interconnected by base gusset 1b between the internal perisporium of base inner casing 1a and base 1, the upper end cover of mair motor 2 stretches out the periphery of motor body and is fixedly connected in the upper port of base inner casing 1a, mair motor 2 upper end cover is circumferentially evenly distributed with multiple motor upper cover air vent 2c near outer rim, the lower circumference of base 1 is respectively equipped with multiple fresh air inlet 1c communicated with the inner chamber of base inner casing 1a; The highest portion position of sand setting discharge-ring 20 is lower than the upper limb of sand setting inner casing 19.

The below of rotary drum fan 4 is provided with drip tray 3, drip tray 3 is in low inside and high outside taper, the inner edge of drip tray 3 is provided with the flanging upwards bent, flanging embeds in the annular groove of rotary drum fan 4 lower surface, the periphery of drip tray 3 is provided with the annular deep gouge 3a to lower recess, the middle part of sand setting inner casing 19 short transverse is provided with spilled water hole 19a, and spilled water hole 19a communicates with the bottom of annular deep gouge 3a, and the axis that the axis of spilled water hole 19a and case sand setting export 18a is positioned at same perpendicular.

Because mair motor 2 is underlying, mair motor 2 region can not have water droplet to enter, when drum assembly during High Rotation Speed, under centrifugal action, flies out outside current direction under mair motor 2 drives; Rotary drum fan 4 is also with the armature spindle 2a High Rotation Speed of mair motor 2 simultaneously, air-flow enters the inner chamber of base inner casing 1a from the fresh air inlet 1c of base 1 lower circumference, the superjacent air space of mair motor 2 is entered again from motor upper cover air vent 2c, under the effect of rotary drum fan 4, upwards blow out from the gap between base inner casing 1a top and drum assembly, stop water droplet to fall from here.

When equipment is in cleaning state, rinse water drops on sand setting discharge-ring 20, a small amount of water droplet can flow downward to the lowest part of drum assembly along the outer wall of drum assembly, then fall on drip tray 3, because drip tray 3 is in low inside and high outside taper and inner edge is provided with the flanging upwards bent, all water droplets can outwards flow in annular deep gouge 3a, then fall to sand setting discharge-ring 20 from the spilled water hole 19a sand setting inner casing 19.The water height of annular deep gouge 3a is enough to ensure the mobilization dynamic to spilled water hole 19a, and drip tray 3 can not be made to produce overflow.The sand setting discharge-ring 20 at case sand setting outlet 18a place is in extreme lower position, and spilled water hole 19a is located at and can keeps maximum drop with sand setting discharge-ring 20 herein, avoids the annular of the current direction on sand setting discharge-ring 20 deep gouge 3a to pour in down a chimney.

Drum assembly comprises rotary drum body 5, and rotary drum body 5 is the cydariform that upper and lower two ends diameter is little, middle part diameter is large; The inner chamber of rotary drum body 5 is provided with the swash plate support with rotary drum body coaxial line, and the center of swash plate support is provided with up-small and down-big conically shaped 6, and the lower end of feed pipe 13 is inserted into the inner chamber bottom of conically shaped 6; The periphery, bottom of conically shaped 6 is connected with up-small and down-big conical floor 7, and the lower edge of conical floor 7 is supported on the inwall of rotary drum body 5, leaves charging space between the below of conical floor 7 and the bottom of rotary drum body 5; The outer wall of conically shaped 6 is radially evenly provided with the outer gusset 6a of many conically shapeds, and form upper circulation road respectively between the outer gusset 6a of adjacent two conically shapeds, the upper end of upper circulation road communicates with corresponding rotary drum clear water output 12a respectively.

The top of conical floor 7 is stacked with multiple up-small and down-big and taper swash plate 9 that shape size is identical successively, the upper surface of each taper swash plate 9 is provided with multiple tracks and is radially uniformly distributed and highly equal fin, the outer gusset 6a one_to_one corresponding of fin and conically shaped and be positioned in identical phase place, the inner periphery of each taper swash plate 9 is fixed on the outer gusset 6a of conically shaped by keyway; Be respectively equipped with swash plate through hole 9a between the lower end of adjacent two fins, each swash plate through hole 9a is distributed in circumferentially same; The lower circumference of conical floor 7 is provided with multiple chassis through hole, chassis through hole and swash plate through hole 9a one_to_one corresponding and mutually through.

Swash plate gland 11 is pressed with above the taper swash plate 9 of top layer, the periphery of swash plate gland 11 is fixed in the upper port of rotary drum body 5, the centre of swash plate gland 11 protrudes upward outside inner casing apical ring 15a, the upper port of swash plate gland 11 is provided with and overflows lid 12, overflow the centre of lid 12 higher than lower circumference, the lower circumference overflowing lid 12 is fixed in the upper port of swash plate gland 11, and each rotary drum clear water output 12a is arranged in the lower circumference and level sensing outside that overflow lid 12.In Fig. 9, the taper swash plate 9 of multiple superposed is reduced to swash plate heap.

The horn mouth of conically shaped 6 lower end plays the effect of diffusion material, bottom conically shaped 6, the conical floor 7 of periphery plays the effect supporting taper swash plate 9, conical floor 7 and swash plate gland 11 carry out axial location to taper swash plate heap jointly, and the outer gusset 6a of each conically shaped carries out centralized positioning to taper swash plate heap and carries out radial location by key; Material flows out the bottom of rear arrival conically shaped 6 from feed pipe 13, enter the underlying space of conical floor 7 under the influence of centrifugal force, then each chassis through hole and swash plate through hole 9a is upward through, settlement space is formed between two taper swash plates 9, the upper surface of particle each taper swash plate 9 because proportion is deposited in more greatly, and to the large end flowing of taper swash plate 9 under centrifugal action, then depart from taper swash plate 9 and flow out from each rotary drum sand setting outlet 5a; Clear water is because the little gap between taper swash plate 9 of proportion is to overflow, and the upper circulation road from each conically shaped between gusset 6a upwards flows, and finally flows out from overflowing lid 12 each rotary drum clear water output 12a circumferentially.

The fin of each taper swash plate 9 upper surface makes to keep equal distance between taper swash plate 9, the space between taper swash plate 9 is divided into some deciles simultaneously, and the upper circulation road separately between gusset 6a outer with conically shaped is corresponding to be communicated with; Form swash plate heap because drum assembly adopts multiple thinner taper swash plate 9 to be superimposed, significantly increase settling area, improve output; Simultaneously due to the High Rotation Speed of drum assembly, utilize centrifugation and the discharge of particle, greatly improve dewatering efficiency.

Overflow between the centre of lid 12 and lower circumference and be connected as a single entity by overflowing the lid conical surface, overflow on the lid conical surface and be evenly distributed with multiple jet orifice 12b; Water outlet case top cover 14a points to jet orifice 12b position corresponding be circumferentially at least provided with a visor 17.After material enters conically shaped 6 bottom from feed pipe 13, to the flowing underneath of conical floor 7 under centrifugal action; If the feed rate of feed pipe 13 is excessive, exceed the disposal ability of disk type dehydrator, material upwards will choke along conically shaped 6, upwards spray from the jet orifice 12b overflowed the lid conical surface, be mapped on visor 17, operating personnel can observe this phenomenon from device external, suitably reduce feed rate, thus both can ensure that dewaterer worked under comparatively large discharge, flow excess load can be avoided again.

The armature spindle 2a upper end of mair motor 2 is connected with up-small and down-big deflection cone 2b, and the lower surface of deflection cone 2b is pressed on the diapire of rotary drum body 5; Radially evenly be provided with multiple tracks charging shunting gusset 6b in the inner chamber of conically shaped 6 and the underlying space of conical floor 7 and the underlying space of conically shaped inner chamber and conical floor 7 is separated into multiple independently charging runner; Charging shunting gusset 6b and conically shaped gusset 6a one_to_one corresponding and be positioned in identical phase place outward, the lower end of each charging runner is communicated with swash plate through hole 9a one_to_one corresponding respectively.Deflection cone 2b can reduce material to resistance during conical floor 7 flowing underneath, and material flow path is divided into multiple unit by the fin on charging shunting gusset 6b, taper swash plate 9 and the outer gusset 6a of conically shaped, makes between each unit separate, avoids the disorder in flow field.

Be provided with lower disc 8 between the taper swash plate 9 of bottom and conical floor 7, between the taper swash plate 9 of top layer and swash plate gland 11, be provided with disc 10, lower disc 8 be circumferentially respectively equipped with disc through hole with swash plate through hole 9a one_to_one corresponding and mutually through.The upper and lower surface of upper disc 10 and lower disc 8 can be parallel to each other, also can be in a certain angle, changes the upper disc 10 of different angles and lower disc 8, the drift angle of taper swash plate 9 can be changed, to adapt to different mineral better, substantially increase the versatility of dewaterer, reduce equipment investment.Under normal circumstances, the drift angle of dewaterer taper swash plate is 90 ° ~ 120 °, and spacing is 2 ~ 10mm.

Be provided with overflow between the upper port overflowing lid 12 and swash plate gland 11 and regulate plate 12c, overflow regulates between the inner periphery of plate 12c and the outer wall of conically shaped 6 and leaves gap.Overflow regulates plate 12c to the insertion depth of overflow ducts, determine the uninterrupted of clear water, overflow flow velocity is avoided to cause dehydration insufficient too soon, the overflow changing different size regulates plate, just can adapt to different mineral better, substantially increase the versatility of dewaterer, reduce equipment investment.

Be separately installed with sand setting nozzle 5b in rotary drum sand setting outlet 5a, the inner termination of sand setting nozzle 5b is embedded with anti-wearing liner 5b1 respectively, the inner face of anti-wearing liner 5b1 is respectively equipped with bush ring connected in star 5b2.Because the wearing and tearing of particle to sand setting nozzle 5b are larger, the inner termination of sand setting nozzle 5b arranges the service life that anti-wearing liner 5b1 can extend sand setting nozzle 5b; In use, amass in bush ring connected in star 5b2 and expired ore pulp material, first ore pulp deposit bears the impact of particle to equipment, defines with the situation of thing mill thing, extends the service life of sand setting nozzle 5b further.

The bottom excircle of rotary drum body 5 is provided with rotary drum body counterweight tank 5c, and the middle part outer step of swash plate gland 11 is provided with gland counterweight tank 11a, rotary drum body counterweight tank 5c and gland counterweight tank 11a respectively with rotary drum body coaxial line, and be T-slot.Setting-in balancing weight in rotary drum body counterweight tank 5c and gland counterweight tank 11a, can regulate the dynamic balancing of rotary drum body easily, reduces dewaterer vibration at work, the service life of extension device.

The foregoing is only the better possible embodiments of the utility model, non-ly therefore limit to scope of patent protection of the present utility model.In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.The utility model can pass through without the technical characteristic described or adopt existing techniques in realizing, does not repeat them here.

Claims (9)

1. a micro-size fraction dry-discharge system for tailings, comprise filter press, it is characterized in that: also comprise every ballast screen, agitator tank, Pulp pump, filter and disk type dehydrator, micro-size fraction mine tailing is connected with the described entrance every ballast screen, the described outlet of the screenings every ballast screen is connected with the entrance of described agitator tank, the outlet of described agitator tank is connected with the entrance of described Pulp pump, the outlet of described Pulp pump is connected with the entrance of described filter, the outlet of described filter is connected with the charging aperture of described disk type dehydrator, the case sand setting outlet of described disk type dehydrator is connected with the charging aperture of described filter press, the case overflow outlet of described disk type dehydrator is connected with water return pipeline jointly with the press filtration clear water output of described filter press.

2. micro-size fraction dry-discharge system for tailings according to claim 1, it is characterized in that: described disk type dehydrator comprises rotary drum case and is positioned at the drum assembly of rotary drum case inner chamber, described rotary drum case is surrounded by superposed water outlet case and the sand setting case that is positioned at bottom and forms, the top of described water outlet case be fornix shape and top center by water outlet case top closure, the bottom, periphery of described water outlet case is provided with described case overflow outlet, and the bottom, periphery of described sand setting case is provided with the outlet of described case sand setting; The center of described water outlet case top cover is plugged with feed pipe, and the axis of the lower end edge drum assembly of described feed pipe is inserted into the inner chamber bottom of drum assembly; The mid diameter maximum of described drum assembly is evenly distributed with the outlet of multiple rotary drum sand setting, and described rotary drum sand setting outlet is exported with described case sand setting and is connected by runner; The top of described drum assembly is circumferentially evenly distributed with multiple rotary drum clear water output, and described rotary drum clear water output is exported with described case overflow and is connected by runner; The bottom centre of described drum assembly is fixed on the armature spindle upper end of mair motor, and described mair motor is fixed on the inner chamber of base, and the upper port of described base is fixedly connected with the lower end of described sand setting case.

3. micro-size fraction dry-discharge system for tailings according to claim 2, it is characterized in that: the inner chamber of described water outlet case is provided with water outlet inner casing, described water outlet inner casing envelope is in the upper periphery of described drum assembly, the top of described water outlet inner casing is connected with inner casing apical ring, and described inner casing apical ring is positioned at the lower outer of described rotary drum clear water output; Be interconnected by clear water discharge-ring between described water outlet inner casing and described water outlet case, described clear water discharge-ring to round and minimum position to export with described case overflow and docks along the chuck of described water outlet case in the shape of a spiral; The inner chamber of described sand setting case is provided with sand setting inner casing, described sand setting inner casing envelope is in the lower, outer perimeter of described drum assembly, the top of described sand setting inner casing is positioned at inside the below of described rotary drum sand setting outlet, be interconnected by sand setting discharge-ring between described sand setting inner casing and described sand setting case, described sand setting discharge-ring to round and minimum position to export with described case sand setting and docks along the chuck of described sand setting case in the shape of a spiral.

4. micro-size fraction dry-discharge system for tailings according to claim 2, it is characterized in that: the bottom centre region of described drum assembly is upwards recessed to form up-small and down-big and is the rotary drum cavity in isosceles trapezoid cross section, in described rotary drum cavity, rotary drum fan is installed, described rotary drum fan is the low taper in height periphery, center, and the center of described rotary drum fan is fixed on the armature spindle of described mair motor; The inner chamber of described base is provided with the base inner casing with base coaxial line, be interconnected by base gusset between described base inner casing and the internal perisporium of base, the upper end cover of described mair motor stretches out the periphery of motor body and is fixedly connected in the upper port of described base inner casing, described mair motor upper end cover is circumferentially evenly distributed with multiple motor upper cover air vent, the fresh air inlet that the inner chamber lower circumference of described base being respectively equipped with multiple and described base inner casing communicates near outer rim; The highest portion position of described sand setting discharge-ring is lower than the upper limb of described sand setting inner casing; The below of described rotary drum fan is provided with drip tray, described drip tray is low inside and high outside taper, the inner edge of described drip tray is provided with the flanging upwards bent, described flanging embeds in the annular groove of described rotary drum fan lower surface, the periphery of described drip tray is provided with the annular deep gouge to lower recess, the middle part of described sand setting inner casing short transverse is provided with spilled water hole, described spilled water hole communicates with the bottom of described annular deep gouge, and the axis that the axis of described spilled water hole and described case sand setting export is positioned at same perpendicular.

5. micro-size fraction dry-discharge system for tailings according to claim 3, is characterized in that: described drum assembly comprises rotary drum body, and described rotary drum body is the cydariform that upper and lower two ends diameter is little, middle part diameter is large; The inner chamber of described rotary drum body is provided with the swash plate support with rotary drum body coaxial line, and the center of described swash plate support is provided with up-small and down-big conically shaped, and the lower end of described feed pipe is inserted into the inner chamber bottom of described conically shaped; The periphery, bottom of described conically shaped is connected with up-small and down-big conical floor, and the lower edge of described conical floor is supported on the inwall of described rotary drum body, leaves charging space between the below of described conical floor and the bottom of described rotary drum body; The outer wall of described conically shaped is radially evenly provided with the outer gusset of many conically shapeds, and form upper circulation road respectively between the outer gusset of adjacent two conically shapeds, the upper end of described upper circulation road communicates with corresponding described rotary drum clear water output respectively; The top of described conical floor is stacked with multiple up-small and down-big and taper swash plate that shape size is identical successively, the upper surface of each taper swash plate is provided with multiple tracks and is radially uniformly distributed and highly equal fin, the outer gusset one_to_one corresponding of described fin and described conically shaped and be positioned in identical phase place, the inner periphery of each taper swash plate is fixed on the outer gusset of described conically shaped by keyway; Be respectively equipped with swash plate through hole between the lower end of fin described in adjacent two, each swash plate through hole is distributed in circumferentially same; The lower circumference of described conical floor is provided with multiple chassis through hole, described chassis through hole and described swash plate through hole one_to_one corresponding and mutually through; Swash plate gland is pressed with above the taper swash plate of top layer, the periphery of described swash plate gland is fixed in the upper port of described rotary drum body, the centre of described swash plate gland protrudes upward outside described inner casing apical ring, the upper port of described swash plate gland is provided with and overflows lid, the described centre overflowing lid is higher than lower circumference, the described lower circumference overflowing lid is fixed in the upper port of described swash plate gland, overflows the lower circumference of lid and level points to outside described in each described rotary drum clear water output is arranged in.

6. micro-size fraction dry-discharge system for tailings according to claim 5, it is characterized in that: described in overflow between the centre of lid and lower circumference and be connected as a single entity by overflowing the lid conical surface, described in overflow on the lid conical surface and be evenly distributed with multiple jet orifice; Described water outlet case top cover points to described jet orifice position corresponding be circumferentially at least provided with a visor.

7. micro-size fraction dry-discharge system for tailings according to claim 5, is characterized in that: the armature spindle upper end of described mair motor is connected with up-small and down-big deflection cone, and the lower surface of described deflection cone is pressed on the diapire of described rotary drum body; Radially evenly be provided with multiple tracks charging shunting gusset in the inner chamber of described conically shaped and the underlying space of described conical floor and the underlying space of conically shaped inner chamber and described conical floor is separated into multiple independently charging runner; Described charging shunting gusset and described conically shaped gusset one_to_one corresponding and be positioned in identical phase place outward, the lower end of each described charging runner is communicated with described swash plate through hole one_to_one corresponding respectively; Lower disc is provided with between the described taper swash plate of bottom and described conical floor, be provided with disc between the described taper swash plate of top layer and described swash plate gland, described lower disc be circumferentially respectively equipped with disc through hole with described swash plate through hole one_to_one corresponding and mutually through.

8. micro-size fraction dry-discharge system for tailings according to claim 5, it is characterized in that: described in overflow lid and described swash plate gland upper port between be provided with overflow and regulate plate, described overflow regulates between the inner periphery of plate and the outer wall of described conically shaped and leaves gap.

9. micro-size fraction dry-discharge system for tailings according to claim 5, it is characterized in that: in described rotary drum sand setting outlet, be separately installed with sand setting nozzle, the inner termination of described sand setting nozzle is embedded with anti-wearing liner respectively, the inner face of described anti-wearing liner is respectively equipped with bush ring connected in star.