CN211587110U

CN211587110U - Fine sand extractor capable of improving fine sand dehydration efficiency

Info

Publication number: CN211587110U
Application number: CN201922497479.5U
Authority: CN
Inventors: 张浩章
Original assignee: Guangzhou Shaoshen Machinery Equipment Co ltd
Current assignee: Guangzhou Shaoshen Machinery Equipment Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-29
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a can improve fine sand extraction machine of fine sand dehydration efficiency relates to the fine sand and draws technical field to in the dehydration process is retrieved to current fine sand of solution, the unsatisfactory technical problem of dehydration effect. The fine sand extractor comprises a material storage device, a feeding device, a separating device and a vibration dewatering screen; the screen plate of the vibration dewatering screen is provided with a plurality of partition plates, and the extension direction of the partition plates is consistent with the material flowing direction. The utility model discloses a be equipped with a plurality of baffles on the sieve of vibration dewatering screen, can effectively avoid moist silt to go out ready-made heap, blocking's state, improve the dispersion degree of silt on the sieve, improve the filtration dehydration efficiency of silt, practice thrift the cost and the energy consumption of follow-up transportation, processing, the utilization of silt.

Description

Fine sand extractor capable of improving fine sand dehydration efficiency

Technical Field

The utility model belongs to the technical field of the fine sand draws, concretely relates to can improve fine sand extraction machine of fine sand dehydration efficiency.

Background

The existing sand production line is easy to cause great loss of fine sand, and the loss rate of some fine sand even exceeds 20 percent, so that not only is serious economic loss caused, but also the proportion of the fine sand is seriously influenced, the fineness modulus of the sand is rough, and the product quality of the sand is reduced; and the discharge of a large amount of fine sand can cause serious environmental pollution.

In order to reduce the loss of fine sand, use the fine sand to retrieve the machine among the prior art and draw the recovery to the fine sand in the silt usually, current fine sand retrieves the machine, generally at first through swirler initial separation water and silt, then will separate out the silt of partial moisture and pass through the dehydration of vibration dewatering screen, because the silt that treats the dehydration still has more moisture, when filtering the dehydration through the vibration dewatering screen, be difficult to the dispersion, lead to the dehydration effect unsatisfactory, the cost of transportation and the drying cost of processing operation on next step have been increased.

Therefore, how to improve the dewatering effect of the existing fine sand reclaimer is an important problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can improve fine sand extraction machine of fine sand dehydration efficiency to solve current fine sand and retrieve the dehydration in-process, the unsatisfactory technical problem of dehydration effect.

In order to achieve the above purpose, the utility model provides a following technical scheme: a fine sand extractor capable of improving fine sand dehydration efficiency comprises a storage device, a feeding device, a separating device and a dehydration device;

the separation device is a cyclone, the feeding device comprises a feeding pipeline and a pressure pump arranged on the feeding pipeline, and the dehydration device is a vibration dehydration screen; one end of the feeding pipeline is connected with the material storage device, the other end of the feeding pipeline is connected with a feeding hole of a cyclone, and a discharging hole of the cyclone is positioned above a feeding end of the vibration dewatering screen; the screen plate of the vibration dewatering screen is provided with a plurality of partition plates, and the extension direction of the partition plates is consistent with the material flowing direction.

Preferably, the partition plates arranged on the sieve plate and close to the feeding end of the vibration dewatering sieve are radially arranged, and the gathering ends of the partition plates correspond to the discharge hole of the cyclone.

Preferably, three rows of partition plates with different numbers are arranged on the sieve plate of the vibration dewatering sieve.

Preferably, the baffles in the middle of the screen deck and in the area near the discharge end of the shaker are of an "S" configuration.

Preferably, one end of any one of the partition plates, which is close to the sieve plate, is provided with a plurality of sand passing holes.

Preferably, the cyclone comprises a primary cyclone and a secondary cyclone, the overflow port of the primary cyclone is connected with the feeding port of the secondary cyclone through a first pipe, and the first pipe is provided with a first valve.

Preferably, the feeding pipeline comprises a main pipe communicated with the material storage device, and a second pipe and a third pipe which are communicated with the feeding ports of the first-stage cyclone and the second-stage cyclone respectively, the third pipe is provided with a second valve, and the main pipe is further provided with a flow control valve.

Preferably, the system also comprises a recovery water tank, wherein the recovery water tank is respectively communicated with overflow ports of the primary cyclone and the secondary cyclone through a pipe four and a pipe five, and a valve three is arranged on the pipe four.

Preferably, the first pipe and the fourth pipe are simultaneously communicated with an overflow port of the primary cyclone through a three-way joint; and the first pipe and the third pipe are simultaneously communicated with a feeding port of the secondary cyclone through a three-way joint.

Preferably, the vibrating dewatering screen is positioned right above the storage device.

The utility model has the advantages that: the utility model discloses a be equipped with a plurality of baffles on the sieve of vibration dewatering screen, can effectively avoid moist silt to go out ready-made heap, blocking's state, improve the dispersion degree of silt on the sieve, improve the filtration dehydration efficiency of silt, practice thrift the cost and the energy consumption of follow-up transportation, processing, the utilization of silt.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the construction of a fine sand extractor according to the present embodiment;

FIG. 2 is a schematic structural diagram of a cyclone mounting bracket according to the present embodiment;

FIG. 3 is a schematic structural diagram of the connecting line in the present embodiment;

fig. 4 is a schematic structural view of a screen plate in the present embodiment.

In the figure: 11. a primary swirler; 12. a secondary cyclone; 13. a flow control valve; 14. a second valve; 15. a first valve; 16. a third valve; 17. a third pipe; 18. a first pipe; 19. a fourth tube; 2. a material storage device; 3. a sieve plate; 31. a first row of baffles; 32. a second row of baffles; 33. a third row of baffles; 34. passing through a sand hole; 4. a recovery water tank; 41. and (4) an overflow pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in fig. 1, the present embodiment provides a fine sand extractor capable of improving fine sand dewatering efficiency, which includes a storage device 2, a feeding device, a separating device, and a dewatering device;

the separation device is a cyclone, and the fluid cyclone is a common separation and classification device and commonly adopts a centrifugal sedimentation principle. When the two-phase mixed liquid to be separated enters the cyclone tangentially from the periphery of the cyclone under a certain pressure, strong three-dimensional elliptical strong-rotation shearing turbulent motion is generated. Because the particle size difference exists between the coarse particles and the fine particles, the coarse particles and the fine particles are subjected to different sizes of centrifugal force, centripetal buoyancy, fluid drag force and the like, under the action of centrifugal sedimentation, most of the coarse particles are discharged from a discharge hole at the bottom of the cyclone, and most of the fine particles or liquid are discharged from an overflow hole, so that the separation and classification purposes are achieved.

The feeding device comprises a feeding pipeline and a pressure pump arranged on the feeding pipeline, and the dewatering device is a vibration dewatering screen; one end of the feeding pipeline is connected with the material storage device 2, the other end of the feeding pipeline is connected with a feeding hole of the cyclone, and materials to be processed are conveyed to the cyclone from the material storage device 2 under the action of the pressurizing pump along the feeding pipeline, wherein the material storage device 2 is a water tank in the embodiment.

The discharge port of the cyclone is positioned above the feeding end of the vibration dewatering screen; figure 2 shows a schematic view of the construction of the cyclone mounting. The vibrating dewatering screen is positioned right above the material storage device 2, the material to be processed is discharged from a discharge port of the cyclone after being processed by the cyclone, enters a screen plate 3 of the vibrating dewatering screen, and is further processed or utilized after being filtered and dewatered by the vibrating dewatering screen; the vibrating dewatering screen mainly has the functions of dewatering, desliming and medium removal, and can be used for sand washing in sand and stone material plants, coal slime recovery in coal dressing plants, dry discharge of tailings in mineral dressing plants and the like, so the vibrating dewatering screen is also called as a sand and stone dewatering screen, a mining dewatering screen, a coal slime dewatering screen, a tailing dewatering screen and the like. The vibrating dewatering screen adopts double vibrating motors or flange type vibration exciters (which are dragged by two common motors to rotate in opposite directions in a self-synchronizing way) to make the screen body do periodic reciprocating motion along the linear direction so as to achieve the purpose of grading dewatering.

In order to make the material that falls into on the sieve 3 of vibration dewatering screen be in the dispersed state as far as, improve dehydration efficiency, be equipped with a plurality of baffles on the sieve 3, and the length direction of baffle is unanimous with material flow direction, through setting up a plurality of baffles, can effectively avoid moist silt to appear piling up the state of piece, improve the dispersion degree of silt on sieve 3, improve the filtration dehydration efficiency of silt, practice thrift the cost and the energy consumption of follow-up transportation, processing, the utilization of silt.

Because the discharge gate bore of swirler is less, so silt is gathered together usually from the initial stage that the swirler falls into the vibration dewatering screen, consequently set up more quantity's baffle in one side that sieve 3 is close to vibration dewatering screen pan feeding end, the baffle that is close to vibration dewatering screen pan feeding end setting on the sieve 3 is radial arranging, and the gathering end of baffle corresponds the discharge gate of swirler, through the baffle of radially arranging, can be with the silt that falls into on the sieve 3 originally, carry out quick dispersion, when separating silt, after the dispersion, can reduce the quantity of baffle.

Specifically, in this embodiment, the sieve plate 3 of the vibrating dewatering screen is provided with three rows of partition plates with different numbers, as shown in fig. 4, wherein the first row of partition plates 31 are the above partition plates arranged radially; the baffle that is located 3 middle parts of sieve is second row baffle 32, and the baffle that is close to on the region of vibration dewatering screen discharge end is third row baffle 33, and baffle 32 and the third row baffle 33 of second row are "S" shape structure, and the baffle quantity of second row is more than third row baffle quantity, and the sieve 3 of "S" shape structure can prolong the movement track of silt on sieve 3, prolongs filter time, improves the filter effect.

One end of any partition plate close to the sieve plate 3 is provided with a plurality of sand passing holes 34, and silt among different partition plates can be exchanged through the sand passing holes 34, so that the movement track and the filtering time of the silt among the partition plates are further improved, and the dehydration efficiency of the silt is improved.

In order to improve the efficiency of the separation of the material, the cyclone comprises a primary cyclone 11 and a secondary cyclone 12. First row of baffles 31 comprises two sets of radially arranged baffles corresponding to primary cyclone 11 and secondary cyclone 12.

Specifically, in the present embodiment, as shown in fig. 3, the overflow port of the primary cyclone 11 is connected to the feed port of the secondary cyclone 12 through a first pipe 18, and a first valve 15 is arranged on the first pipe 18; the feeding pipeline comprises a main pipe communicated with the material storage device 2, and a second pipe and a third pipe 17 which are respectively communicated with the feeding ports of the first-stage cyclone 11 and the second-stage cyclone 12, wherein a second valve 14 is arranged on the third pipe 17, and a flow control valve 13 is further arranged on the main pipe. The series or parallel connection state of the primary cyclone 11 and the secondary cyclone 12 can be changed by controlling the opening and closing states of the first valve 15 and the second valve 14.

For example, when more materials are stored in the storage device 2 and the processing speed needs to be increased, the first valve 15 is closed, the second valve 14 is opened, the materials in the storage device 2 can enter the first-stage cyclone 11 and the second-stage cyclone 12 through the second pipe and the third pipe 17 respectively, the first-stage cyclone 11 and the second-stage cyclone 12 are processed in a parallel connection relationship, the separation effect can be simultaneously performed, and the processing speed is increased.

When the requirement on the processing speed is not high, in order to improve the recovery rate of the fine sand, a first valve 15 can be opened, a second valve 14 can be closed, materials in the material storage device 2 can only enter the first-stage cyclone 11 through a second pipe, wastewater flowing out of an overflow port of the first-stage cyclone 11 enters a feeding port of the second-stage cyclone 12 through a first pipe 18, the wastewater is separated again through the second-stage cyclone 12, the fine sand is further recovered, and the content of the fine sand in the wastewater discharged from the overflow port of the second-stage cyclone 12 is reduced; the primary cyclone 11 and the secondary cyclone 12 are now in series.

In order to utilize the waste water discharged from the cyclone conveniently, the fine sand extractor in the embodiment further comprises a recovery water tank 4, overflow ports of the primary cyclone 11 and the secondary cyclone 12 are respectively communicated with an overflow pipe 41 of the recovery water tank 4 through a pipe four 19 and a pipe five, and a valve three 16 is arranged on the pipe four 19; when the first valve 15 is opened and the second valve 14 is closed, the third valve 16 is closed, and the recovery water tank 4 only receives the wastewater discharged from the overflow port of the secondary cyclone 12; when the first valve 15 is closed and the second valve 14 is opened, the third valve 16 is opened, and the recovery water tank 4 simultaneously receives the wastewater discharged from the overflow ports of the primary cyclone 11 and the secondary cyclone 12.

In order to facilitate pipeline connection, the first pipe 18 and the fourth pipe 19 can be simultaneously communicated with an overflow port of the primary cyclone 11 through a three-way joint;

meanwhile, the first pipe 18 and the third pipe 17 are simultaneously communicated with a feeding port of the secondary cyclone 12 through a three-way joint; the fourth 19 and fifth tubes are simultaneously communicated with the overflow tube 41 through a three-way joint.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a can improve fine sand extraction machine of fine sand dehydration efficiency which characterized in that: comprises a material storage device (2), a feeding device, a separating device and a dehydrating device;

the separation device is a cyclone, the feeding device comprises a feeding pipeline and a pressure pump arranged on the feeding pipeline, and the dehydration device is a vibration dehydration screen; one end of the feeding pipeline is connected with the material storage device (2), the other end of the feeding pipeline is connected with a feeding hole of a cyclone, and a discharging hole of the cyclone is positioned above a feeding end of the vibration dewatering screen; the screen plate (3) of the vibration dewatering screen is provided with a plurality of partition plates, and the extension direction of the partition plates is consistent with the material flowing direction.

2. The fine sand extractor capable of improving the fine sand dewatering efficiency according to claim 1, wherein the partition plates arranged on the sieve plate (3) close to the feeding end of the vibration dewatering sieve are radially arranged, and the gathering ends of the partition plates correspond to the discharging port of the cyclone.

3. The fine sand extractor capable of improving the fine sand dewatering efficiency according to claim 2, wherein three rows of partition plates are arranged on the screen plate (3) of the vibration dewatering screen, and the number of the partition plates is different.

4. A fine sand extractor with improved fine sand dewatering efficiency according to claim 3, characterized in that the partitions in the middle of the screen plate (3) and in the area near the discharge end of the vibrating dewatering screen are of "S" shaped construction.

5. A fine sand extractor with improved fine sand dewatering efficiency according to claim 1, characterized in that the end of any one of the partition plates close to the screen plate (3) is provided with a plurality of sand passing holes (34).

6. A fine sand extractor with improved fine sand dewatering efficiency according to any one of claims 1-5, characterized in that the cyclone comprises a primary cyclone (11) and a secondary cyclone (12), the overflow of the primary cyclone (11) is connected to the inlet of the secondary cyclone (12) via a first pipe (18), and a first valve (15) is arranged on the first pipe (18).

7. The fine sand extractor capable of improving the fine sand dewatering efficiency according to claim 6, wherein the feeding pipeline comprises a main pipe communicated with the storage device (2), and a second pipe and a third pipe (17) respectively communicated with the feeding ports of the primary cyclone (11) and the secondary cyclone (12), the third pipe (17) is provided with a second valve (14), and the main pipe is further provided with a flow control valve (13).

8. The fine sand extractor capable of improving the fine sand dewatering efficiency according to claim 7, further comprising a recovery water tank (4), wherein the recovery water tank (4) is communicated with overflow ports of the primary cyclone (11) and the secondary cyclone (12) through a pipe four (19) and a pipe five, respectively, and a valve three (16) is arranged on the pipe four (19).

9. The fine sand extractor capable of improving the fine sand dewatering efficiency according to claim 8, wherein the first pipe (18) and the fourth pipe (19) are simultaneously communicated with the overflow port of the primary cyclone (11) through a tee joint; the first pipe (18) and the third pipe (17) are simultaneously communicated with a feeding port of the secondary cyclone (12) through a three-way joint.

10. A fine sand extractor with improved fine sand dewatering efficiency according to claim 6, characterized in that the vibrating dewatering screen is located directly above the storage device (2).