CN210631720U - Deep-cone dense sand silo with fluidized sand discharging device - Google Patents
Deep-cone dense sand silo with fluidized sand discharging device Download PDFInfo
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- CN210631720U CN210631720U CN201920750965.0U CN201920750965U CN210631720U CN 210631720 U CN210631720 U CN 210631720U CN 201920750965 U CN201920750965 U CN 201920750965U CN 210631720 U CN210631720 U CN 210631720U
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Abstract
The utility model relates to a deep cone dense sand silo with a fluidization sand discharging device, which comprises a sand silo body, a feeding pipe, a flocculating agent liquid inlet pipe, an overflow launder, a feeding well, a circulating well, an annular flow guide cone and a stirring fluidization device; the overflow groove is fixedly connected with the top of the inner wall of the sand silo body and communicated with the supernatant fluid return pipe; the feeding well is arranged at the center of the top of the sand silo body and is fixedly connected with the sand silo body; the circulating well is arranged in the feeding well and fixedly connected with the feeding well, and a feeding area is formed between the feeding well and the circulating well; the feeding pipe is communicated with the feeding area; the annular diversion cone is arranged right below the circulating well and is fixedly connected with the inner wall of the sand cabin body, and the diameter of the top of the annular diversion cone is the same as that of the circulating well; the bottom of the sand cabin body is provided with a discharge hole, and the stirring and fluidizing device is fixedly connected with the discharge hole. The utility model discloses form special flow field after making the tailing get into the sand silo, anhydrous power and strength consumption, fluidization are effectual, guarantee that mortar concentration does not reduce and can not reduce dense effect.
Description
Technical Field
The utility model relates to a mine environmental protection equipment technical field, concretely relates to dense sand silo of dark awl with sand device is put in fluidization.
Background
The mine industry generally adopts a thickener or a vertical sand silo when concentrating and dehydrating low-concentration tailings produced in the mineral separation production process. The thickener in the prior art is mostly discharged in a rake mode, the problems of large occupied area, complex structure, high power consumption, low concentration efficiency, complex maintenance and the like exist, and the danger of rake pressing also exists for tailings with high compactness settled at the lower part of the thickener.
At the bottom of a thickener or a vertical sand silo, when the concentration of particles reaches a certain value, the rheological property of slurry is in a non-Newtonian fluid characteristic, the yield stress is large, and smooth discharge is difficult to realize. Common thickeners or vertical sand silos generally adopt a mud scraping rake with a complex structure to realize high-concentration ore drawing; or the bottom of the bin is additionally provided with a nozzle, and high-concentration discharge is realized by adopting the technologies of local fluidization slurry making of a high-pressure water nozzle, pneumatic slurry making, air-water linkage slurry making and the like. These several fluidization slurry-making methods have many disadvantages: the mud scraping rake type thickener has the advantages of complex structure, high manufacturing cost and large power consumption, and has hidden danger of rake pressing during operation; the concentration of the discharged tailings is reduced due to local fluidization pulp making of the high-pressure water spray nozzle, so that the concentration effect is influenced; the air bubble rises to interfere the natural sedimentation effect of the tailings in the pneumatic slurry making process, so that the thickening rate is reduced; the slurry making by the air-water linkage has the adverse effects of reducing the concentration of the discharged tailings and interfering the natural sedimentation of the tailings to reduce the concentration rate.
Therefore how to provide a sand silo and realize that the high efficiency and the high concentration of mine tailing are discharged is the utility model aims to solve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a dense sand silo of dark awl with fluidization sand discharging device is provided, realizes that the mine selects the high efficiency and the high concentration of tailing to discharge.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a deep cone dense sand silo with a fluidized sand discharging device comprises a sand silo body, a feeding pipe, a flocculating agent liquid inlet pipe, an overflow chute, a feeding well, a circulating well, an annular flow guide cone and a stirring and fluidizing device; the overflow groove is fixedly connected with the top of the inner wall of the sand bin body; the feeding well is sleeved at the center of the top of the sand silo body and is fixedly connected with the sand silo body; the circulating well is sleeved in the feeding well and fixedly connected with the top of the feeding well, and a feeding area is formed between the feeding well and the circulating well; said feed tube communicating with said feed zone; the annular diversion cone is arranged right below the circulating well and is fixedly connected with the inner wall of the sand cabin body, and the diameter of the top of the annular diversion cone is the same as that of the circulating well; the bottom of the sand silo body is provided with a discharge hole, and the stirring and fluidizing device is fixedly connected with the discharge hole.
The utility model has the advantages that: dense sand silo of dark awl with fluidization sand discharging device, cancelled mud scraping rake and transmission drive arrangement, adopted the dense sand silo of dark awl of special construction, formed special flow field after making the tailing get into the sand silo, the gravity that realizes the coarse grain is subsided naturally and is subsided with the flocculation agglomeration of fine fraction tailing, has accelerateed the flocculation agglomeration speed of fine particle tailing. Compared with the prior sand discharging technology, the utility model has the advantages of no water power and air power consumption, good fluidization effect, no reduction of the mortar concentration and no reduction of the thickening effect. The utility model also has the distinct characteristics of small volume, simple structure, low manufacturing cost, high concentration efficiency, large underflow concentration, no maintenance, low power consumption and the like, and has wide applicability.
Specifically, the feeding pipe and the flocculating agent liquid inlet pipe are respectively communicated with the feeding area. The feed pipeline is used for conveying tailings, and the flocculant pipeline is used for conveying flocculant.
Specifically, the feeder well is fixedly connected with the side wall of the sand bin body through a steel structure support, and a space for materials to pass through is formed between the feeder well and the side wall of the sand bin body.
Specifically, the top of the circulating well and the top of the feeding well are fixedly connected through a steel structure support, and the top of the feeding area is not closed.
Specifically, the annular diversion cone is fixedly connected with the side wall of the sand silo body through a steel structure support.
Specifically, the side wall of the sand bin body is provided with an overflow hole corresponding to the overflow groove, and the overflow groove is communicated with a supernatant collecting pipeline through the overflow hole; or comprises a supernatant liquid return pipe fixedly arranged on the side wall of the sand silo body in a penetrating way, the overflow trough is communicated with the supernatant liquid return pipe, and the supernatant liquid return pipe is communicated with a supernatant liquid collecting pipeline. The supernatant liquid reflux pipeline is communicated with an external supernatant liquid collecting tank.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, the upper part of the sand silo body is in a cylindrical shape with an open top, the lower part of the sand silo body is in a conical cylinder shape with a downward conical top, and the cone angle of the conical cylinder shape is smaller than the repose angle of tailings.
The beneficial effect of adopting the further scheme is that: the cone angle of the conical cylinder at the lower part is smaller than the repose angle of the tailings, so that the tailing can be effectively prevented from arching.
Specifically, the repose angle, also called the angle of repose, is the minimum angle between the horizontal surface and the object placed on the inclined surface when the inclined surface is in the critical state of sliding down along the inclined surface (i.e., the object on the inclined surface is more likely to slide down as the inclination angle increases; when the object reaches the state of starting sliding down, the angle in the critical state is called the angle of repose).
Further, the feeding pipe is connected with the feeding well along the tangential direction of the feeding well and communicated with the feeding area.
The beneficial effect of adopting the further scheme is that: the low-concentration tailings are fed into the feeding well along the tangential direction of the inner wall of the cylindrical feeding well. In the feeding well, coarse-grain tailings are separated along the side wall of the feeding well by virtue of centrifugal force generated by a feeding material flow, and the coarse-grain tailings at the periphery after separation sink by virtue of gravity; the low-concentration fine-grained tailings on the inner side and the flocculating agent simultaneously fed into the feeder well are fully dispersed and mixed in a rotating flow field environment.
Further, the flocculating agent feed liquor pipe is arranged in the annular pipeline of the feeding area, a discharge hole with a downward opening is formed in the annular pipeline, and the discharge hole is communicated with the feeding area.
The beneficial effect of adopting the further scheme is that: the flocculant is fed through a flocculant inlet pipeline and is sprayed into a feeding area from a downward discharge hole formed in the annular pipeline. In the feeding area, the low-concentration tailings and the flocculating agent simultaneously fed into the feeder well are fully dispersed and mixed in a high-speed flow field environment.
Further, the upper edge of the feeding well is higher than the overflow groove, and the upper edge of the feeding well is higher than the upper edge of the circulating well.
The beneficial effect of adopting the further scheme is that: the upper end surface of the feeding well protrudes out of an overflow weir of the sand silo body, so that the clear liquid at the upper part of the deep-cone dense sand silo is isolated from the tailings in the feeding well; the upper end surface of the circulating well is lower than the upper edge of an overflow weir at the inner side of the sand cabin body and the upper end surface of the cylindrical feeding well, so that the low-concentration turbid liquid can only overflow into the cylindrical feeding well.
Further, annular water conservancy diversion awl is a positive cone section of thick bamboo and the back taper section of thick bamboo of top fixed connection, annular water conservancy diversion awl has interior conical surface and outer conical surface, interior conical surface with the contained angle of outer conical surface is 60.
The beneficial effect of adopting the further scheme is that: the sedimentation area of the sand silo can be increased, so that the treatment capacity of the tailing sand is increased; when the included angle of the inner conical surface and the outer conical surface at the top of the annular diversion cone is 60 degrees, the diversion effect is good.
Furthermore, the upper portion of circulation well is the cylinder, and the lower part is positive awl section of thick bamboo, the lower border of cylinder with the last border fixed connection of positive awl section of thick bamboo, the lower extreme of circulation well has the water conservancy diversion conical surface, the diameter of water conservancy diversion conical surface lower extreme with the diameter at annular water conservancy diversion awl top equals.
The beneficial effect of adopting the further scheme is that: coarse-fraction tailings in the feeding area naturally sink to the outer conical surface of the circulating well along the inner wall of the feeding well, fine-fraction tailings are combined with a flocculating agent and then are agglomerated and then sink to the outer conical surface of the circulating well, high-density material flow formed by the coarse-fraction tailings and the flocculating agent flows down along the outer conical surface of the circulating well and the outer conical surface of the diversion cone, so that a flocculation area formed by the inner wall of the sand silo, the outer wall of the feeding well, the inner conical surface of the circulating well and the outer conical surface of the diversion cone is formed, low-density clarifying liquid rises through the inner cone of the circulating well, and thus dynamic flow fields of material flows with different densities are formed, and the settling rate of.
Further, the stirring and fluidizing device comprises a rotary power device and a stirring shaft, one end of the stirring shaft is fixedly connected with an output shaft of the rotary power device, and the stirring shaft is arranged in the discharge port in a penetrating manner and is rotatably connected with the side wall of the discharge port.
The beneficial effect of adopting the further scheme is that: the mechanical fluidization discharging mode is adopted, the stirring blade driven by the rotary driving device can disturb and fluidize a sand discharging area with large compaction density on the premise of not reducing the concentration of the tailings and not influencing the thickening effect, so that the compaction density is reduced, and the effect of smooth sand discharging is achieved.
Specifically, the rotary power device may be a rotary motor, or may be another rotary power device.
Furthermore, a rectangular stirring blade is fixedly connected to the stirring shaft.
The beneficial effect of adopting the further scheme is that: the stirring fluidization effect is good.
Further, still include the landing leg, the landing leg with the outer wall fixed connection of the sand storehouse body.
The beneficial effect of adopting the further scheme is that: the sand silo body is convenient to install and fix.
Drawings
FIG. 1 is a sectional view of a deep-cone sand thickener with a fluidized sand discharging device according to the present invention;
FIG. 2 is a partial enlarged view of the feeding pipe of the deep-cone sand silo with a fluidized sand discharging device of the present invention;
FIG. 3 is an enlarged view of the stirring fluidization device of the deep cone sand silo with a fluidization sand discharging device of the present invention;
FIG. 4 is a top view of the feeding pipe of the deep cone sand silo with a fluidized sand discharging device of the present invention;
fig. 5 is the utility model relates to a thick sand silo's of dark awl flocculating agent feed liquor pipe top view with fluidization sand discharging device.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a sand cabin body, 2, a feeding pipe, 3, an overflow groove, 4, a feeding well, 5, a circulating well, 6, an annular diversion cone, 7, a stirring fluidization device, 701, a stirring shaft, 702, a rotary power device, 8, a discharging pipe, 9, a supernatant liquid return pipe, 10, a flocculating agent liquid inlet pipe, A, a clarification area, B, a transition area, C, a settling area, D and a compression area.
Detailed Description
The principles and features of the present invention are described below, with the examples being given only for the purpose of illustration and not for the purpose of limiting the scope of the invention.
As shown in fig. 1-5, a deep cone dense sand silo with a fluidized sand discharging device comprises a sand silo body 1, a feeding pipe 2, an overflow chute 3, a feeding well 4, a circulating well 5, an annular diversion cone 6, a stirring and fluidizing device 7 and a flocculant liquid inlet pipe 10; the overflow groove 3 is fixedly connected with the top of the inner wall of the sand silo body 1, and the overflow groove 3 is communicated with a supernatant fluid return pipe 9; the feeding well 4 is sleeved at the center of the top of the cavity of the sand cabin body 1 and is fixedly connected with the sand cabin body 1; the circulating well 5 is sleeved in the feeding well 4 and is fixedly connected with the top of the feeding well 4 through a steel structure support, and a feeding area is formed between the feeding well 4 and the circulating well 5; the feeding pipe 2 is communicated with the feeding area; the flocculant liquid inlet ring pipe is arranged between the circulating well 5 and the feeding well 4 through a steel structure support; the annular diversion cone 6 is arranged right below the circulating well 5 and is fixedly connected with the inner wall of the sand silo body 1, and the diameter of the top of the annular diversion cone 6 is the same as that of the circulating well 5; the bottom of the sand silo body 1 is provided with a discharge hole, and the stirring and fluidizing device 7 is fixedly connected with the discharge hole.
Specifically, the discharge port is communicated with the discharge pipe 8, and the discharge pipe 8 is provided with a stop valve for communicating or closing the discharge pipe 8.
As a further scheme of this embodiment, the upper portion of the sand silo body 1 is a cylindrical barrel shape with an open top, and the lower portion is a conical barrel shape with a downward conical top, and a cone angle of the conical barrel shape is smaller than a repose angle of tailings.
As a further development of this embodiment, the feed pipe 2 communicates tangentially with the feed zone of the feedwell, as shown in fig. 1-2 and 4. Is an annular pipeline sleeved outside the circulating well 5, and the annular pipeline has a downward feeding hole.
As a further aspect of this embodiment, as shown in fig. 1-2 and 5, the flocculant feed inlet pipe 10 is in communication with the feed zone. The flocculant liquid inlet pipe 10 is an annular pipeline which is sleeved outside the circulating well 5, and the annular pipeline has a downward discharge hole.
As a further development of this embodiment, the upper edge of the feed well 4 is higher than the overflow launder 3, and the upper edge of the feed well 4 is higher than the upper edge of the circulation well 5.
As a further scheme of this embodiment, the annular guide cone 6 is a forward cone cylinder and an inverted cone cylinder, the tops of which are fixedly connected, the annular guide cone 6 has an inner conical surface and an outer conical surface, and an included angle between the inner conical surface and the outer conical surface is 60 °.
As a further scheme of this embodiment, the upper portion of the circulation well 5 is a cylindrical shape, the lower portion is a positive conical cylinder, the lower edge of the cylindrical shape is fixedly connected with the upper edge of the positive conical cylinder, the lower end of the circulation well 5 has a flow guiding conical surface, and the diameter of the lower end of the flow guiding conical surface is equal to the diameter of the top of the annular flow guiding cone 6.
As a further scheme of this embodiment, the stirring device 7 includes a rotary power device 702 and a stirring shaft 701, one end of the stirring shaft 701 is fixedly connected to an output shaft of the rotary power device 702, and the stirring shaft 701 is inserted into the discharge port and rotatably connected to a sidewall of the discharge port.
The rotary power device 702 is a rotary electric machine or a hydraulic motor.
As a further scheme of this embodiment, as shown in fig. 3, a rectangular stirring blade is fixedly connected to the stirring shaft 701.
As a further proposal of the embodiment, the sand silo further comprises supporting legs which are fixedly connected with the outer wall of the sand silo body 1.
The low-concentration tailings and the flocculant respectively enter the feeding well 4 through the feeding pipe 2 and the flocculant liquid inlet ring pipe 10 of the embodiment, and a clarification area A, a transition area B (or called interference settling area), a settling area C and a compression area D are naturally formed from top to bottom in the deep-cone dense sand silo.
The clarification area A is a micro-particle suspension aggregation area which is not flocculated and settled and escapes, and the mass concentration of the micro-particle suspension aggregation area is basically equal to that of clear water; the transition zone B (or called interference settling zone) is a main zone for rapid settling of coarse-particle tailings and flocculation and agglomeration of fine particles; in the settling zone C, the fine particles basically complete flocculation and agglomeration and generate vertical settling together with coarse particle tailings; in the compression zone D, the naturally gravity settled coarse fraction tailings and the flocculated and agglomerated settled fine fraction tailings are mutually superposed to form a compression layer of solid particles, and in the zone, the settling velocity becomes very small, and the solid particles are mutually contacted, supported and extruded. The upper solid particles compress the lower solid particles, so that water in gaps among the lower solid particles is extruded and rises, the contact stress of the upper solid particles and the lower solid particles is gradually increased, and the solid concentration is gradually maximized.
The theory of flocculation and sedimentation indicates that flocculation and agglomeration need to create the opportunity for mutual collision and combination for colloid particles, and in steady-state sedimentation, the flocculation of tailings is mainly based on the Brownian motion of particles; in continuous dynamic sedimentation, the pushing action of external force on particles is an important condition for accelerating the movement and the growth of agglomeration of the particles so as to realize sedimentation.
The utility model discloses a dense sand silo of dark awl that special structural design constitutes makes the low concentration tailing and the flocculating agent that get into feedwell 4 produce the flow field that is favorable to the flocculation agglomeration in this sand silo, and the produced vortex that flows the poor production of concentration through this flow field interferes, causes to play the environment that promotes and accelerate the effect to the granule, promotes the flocculation agglomeration between fine particle and the flocculating agent and the fine particle to grow up.
After the low-concentration tailings are fed into the feeding well 4 through the feeding pipe 2, the coarse fraction tailings realize gravity settling between the feeding well 4 and the circulating well 5 or along the feeding well 4 along the side wall under the action of centrifugal force, or realize gravity settling by means of self gravity. The settled coarse fraction tailings fall to the outer surface of the flow guide conical surface at the lower part of the circulating well 5 to form a material flow with higher mass concentration and flow rate. The material flow is further divided by an annular diversion cone 6 positioned at the lower part of the circulating well 5 in the settling process to form material flows with higher mass concentration and flow velocity distributed on the inner conical surface and the outer conical surface of the annular diversion cone 6.
Correspondingly, in the outer settling zone far away from the outer surface of the flow guide conical surface at the lower part of the circulating well 5 and the outer conical surface of the annular flow guide cone 6, the mass concentration and the flow velocity of tailings are low, so that the flow velocity difference is generated, and a vortex rotational flow field is further generated. The vortex flow field accelerates the movement rate of the fine particle tailings, so that interference is generated between particles in the sedimentation process, and the effects of promoting the combination of fine particles and a flocculating agent and the agglomeration and growth of the fine particles are achieved. Meanwhile, the concentration of solid in the settling zone is low, solid particles quickly drop, interference is generated between particles in the settling process, and the effect of promoting the micro-particles to agglomerate and grow so as to accelerate the settling is also achieved.
In a compression area D from the lower part of the annular diversion cone 6 to the bottom of the deep cone dense sand silo, the naturally gravity settled coarse fraction tailings and the flocculated and agglomerated settled fine fraction tailings are mutually superposed to form a compression layer of solid particles, and in the compression area, the settling velocity becomes very small, and the solid particles are mutually contacted, supported and extruded. The upper solid particles compress the lower solid particles, so that water in gaps among the lower solid particles is extruded and rises, the contact stress of the upper solid particles and the lower solid particles is gradually increased, and the solid concentration is gradually maximized.
The low-concentration turbid liquid extruded and rising in the compression zone D and the low-concentration turbid liquid at the lower part and the central part of the annular diversion cone 6 enter a bell mouth at the lower part of the circulating well 5 under the action of flow speed difference caused by the concentration difference, rise to the upper end part of the circulating well 5 and overflow outwards to the feed well 4. The feeding of the low-concentration turbid liquid further dilutes the fed materials in the feed well 4, so that the tailings are diluted to the concentration at which the flocculating agent can exert the optimal agglomeration effect, and the agglomeration and sedimentation speed of the tailings are increased.
The size of the concentration difference between the inside and the outside of the circulating well 5 is positively correlated with the feed concentration: along with the increase of the feed concentration, the concentration difference between the inside and the outside of the circulating well 5 is increased, so that the upward circulating tailing amount with low concentration is automatically increased, and the dilution effect is automatically increased.
The feed rate is also positively correlated with the settling rate: in the continuous concentration process, the feeding speed is increased, the sedimentation of coarse fraction tailings can be accelerated, the velocity difference of a formed flow field is larger, and the sedimentation speed is increased.
The concentration of the material discharged from the discharge hole of the deep-cone dense sand silo depends on the height of the sand silo body 1. The best embodiment shows that the distance from the upper port of the sand silo body 1 to the small port of the lower cone is not less than 8 meters for the working condition requirement of preparing tailing slurry with the concentration of less than 55 percent; for the working condition requirement of preparing tailing slurry with the concentration higher than 55%, the distance from the upper port of the sand silo body 1 to the small port of the lower cone is not less than 12 meters.
The treatment capacity of the deep-cone dense sand silo is positively correlated with the diameter of the sand silo body 1; larger diameter sand silos increase slurry throughput.
In order to avoid bridging and arching caused by large compaction density at the bottom of the silo and further influence the discharging phenomenon, the lower cone angle of the silo body 1 of the sand mill of the utility model is smaller than the test repose angle when the tailing slurry is processed with the highest concentration.
When the deep-cone dense sand silo does not discharge materials at the bottom temporarily and needs to obtain underflow with higher concentration, the high-concentration materials at the bottom are easy to block. The deep cone dense sand silo is also provided with a stirring fluidization device 7 which is composed of a stirring shaft with blades and a rotary power device at the bottom. The tail sand at the sand outlet is mechanically stirred and fluidized by the device, so that the compacted tail sand can flow and be smoothly discharged.
The utility model adopts the special structural design, and the flow field change of the material flow in the deep-cone dense sand silo is changed, so that the flocculation agglomeration speed of the fine particle tailings is accelerated; meanwhile, compared with the existing sand discharge technology, the sand discharge technology has the following advantages by adopting the mechanical stirring fluidization sand discharge technology: no hydraulic and pneumatic consumption, good fluidization effect, no reduction of mortar concentration and no reduction of thickening effect.
The utility model also has the distinct characteristics of small volume, simple structure, low manufacturing cost, high concentration efficiency, large underflow concentration, no maintenance, low power consumption and the like, and has wide applicability.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate the orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A deep cone dense sand silo with a fluidized sand discharging device is characterized by comprising a sand silo body (1), a feeding pipe (2), an overflow trough (3), a feeding well (4), a circulating well (5), an annular diversion cone (6), a stirring and fluidizing device (7) and a flocculating agent liquid inlet pipe (10);
the overflow groove (3) is fixedly connected with the top of the inner wall of the sand cabin body (1);
the feeding well (4) is arranged at the top center of the cavity of the sand cabin body (1) and is fixedly connected with the sand cabin body (1);
the circulating well (5) is arranged in the feeding well (4) and is fixedly connected with the top of the feeding well (4), and a feeding area is formed between the feeding well (4) and the circulating well (5);
the feeding pipe (2) and the flocculating agent liquid inlet pipe (10) are communicated with the feeding area;
the annular diversion cone (6) is arranged right below the circulating well (5) and is fixedly connected with the inner wall of the sand cabin body (1), and the diameter of the top of the annular diversion cone (6) is the same as that of the circulating well (5);
the bottom of the sand silo body (1) is provided with a discharge hole, and the stirring and fluidizing device (7) is fixedly connected with the discharge hole.
2. The deep cone sand silo with the fluidized sand discharging device is characterized in that the upper part of the sand silo body (1) is in a cylindrical barrel shape with an open top, the lower part of the sand silo body is in a conical barrel shape with a downward conical top, and the cone angle of the conical barrel shape is smaller than the repose angle of tailings.
3. A deep cone sand silo with a fluidized sand discharge device according to claim 1, characterized in that the feed pipe (2) is connected to the feed well (4) tangentially to the feed well (4) and communicates with the feed zone.
4. The deep cone sand thickener with the fluidized sand discharging device according to claim 1, wherein the flocculant inlet pipe (10) is an annular pipe sleeved outside the circulating well (5), the annular pipe is provided with a discharge hole with a downward opening, and the discharge hole is communicated with the feeding area.
5. A deep-cone sand silo with a fluidized sand discharge according to claim 1, characterized in that the upper edge of the feedwell (4) is higher than the overflow launder (3) and the upper edge of the feedwell (4) is higher than the upper edge of the circulation well (5).
6. The deep cone sand thickener with the fluidized sand discharging device as claimed in claim 1, wherein the annular diversion cone (6) is a positive cone cylinder and an inverted cone cylinder which are fixedly connected at the top, the annular diversion cone (6) has an inner conical surface and an outer conical surface, and the included angle between the inner conical surface and the outer conical surface is 60 degrees.
7. The deep cone sand thickener with the fluidized sand discharging device according to claim 1, wherein the upper part of the circulating well (5) is cylindrical, the lower part of the circulating well is a positive cone, the lower edge of the cylindrical shape is fixedly connected with the upper edge of the positive cone, the lower end of the circulating well (5) is provided with a flow guiding conical surface, and the diameter of the lower end of the flow guiding conical surface is equal to the diameter of the top of the annular flow guiding cone (6).
8. The deep cone sand thickener with the fluidized sand discharging device according to claim 1, wherein the stirring and fluidizing device (7) comprises a rotary power device (702) and a stirring shaft (701), one end of the stirring shaft (701) is fixedly connected with an output shaft of the rotary power device (702), and the stirring shaft (701) is arranged in the discharge port in a penetrating way and is rotatably connected with the side wall of the discharge port.
9. The deep-cone sand thickener with the fluidized sand discharging device according to claim 8, wherein a rectangular stirring blade is fixedly connected to the stirring shaft (701).
10. The deep cone sand thickener with the fluidized sand discharging device according to any one of claims 1 to 9, further comprising a leg fixedly connected with the outer wall of the sand silo body (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920750965.0U CN210631720U (en) | 2019-05-23 | 2019-05-23 | Deep-cone dense sand silo with fluidized sand discharging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920750965.0U CN210631720U (en) | 2019-05-23 | 2019-05-23 | Deep-cone dense sand silo with fluidized sand discharging device |
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| CN210631720U true CN210631720U (en) | 2020-05-29 |
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| CN201920750965.0U Expired - Fee Related CN210631720U (en) | 2019-05-23 | 2019-05-23 | Deep-cone dense sand silo with fluidized sand discharging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152358A (en) * | 2019-05-23 | 2019-08-23 | 金诚信矿山工程设计院有限公司 | A kind of dense sand warehouse of depth cone for putting sand device with fluidisation |
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2019
- 2019-05-23 CN CN201920750965.0U patent/CN210631720U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152358A (en) * | 2019-05-23 | 2019-08-23 | 金诚信矿山工程设计院有限公司 | A kind of dense sand warehouse of depth cone for putting sand device with fluidisation |
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