CN110052325B

CN110052325B - Control system for sorting quartz sand

Info

Publication number: CN110052325B
Application number: CN201910457309.6A
Authority: CN
Inventors: 熊帆; 赵辉; 王德春; 周高胜
Original assignee: Changjiang Moulding Materials Group Kezuo Houqi Co ltd
Current assignee: Changjiang Moulding Materials Group Kezuo Houqi Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2022-03-08
Anticipated expiration: 2039-05-29
Also published as: CN110052325A

Abstract

The invention relates to the technical field of automatic control, in particular to a control system for sorting quartz sand, which comprises a control terminal, the quartz sand separation device comprises an overflow box and a separation box, wherein the overflow box is provided with a water inlet, the upper end of the overflow box is open, the separation box is provided with a sand inlet communicated with the overflow box, the height of the sand inlet is higher than the bottom of the overflow box, a row of separation cavities are arranged in the separation box, adjacent separation cavities are separated through a partition plate, a water supply mechanism for supplying water to each separation cavity is arranged on the separation box, the water supply mechanism comprises a plurality of water spray holes, the openings of the water spray holes face upwards, a control terminal is used for controlling the water flow rate of the water supply mechanism and the water inlet according to the separation granularity of quartz sand in each separation cavity, and the control terminal is also used for controlling the partition plate to ascend and descend according to the separation granularity of the quartz sand in each separation cavity.

Description

Control system for sorting quartz sand

Technical Field

The invention relates to the technical field of automatic control, in particular to a control system for sorting quartz sand.

Background

At present, the domestic production process of the quartz sand mainly comprises the following steps: the method comprises the following steps of mining, crushing, cleaning, drying, sorting and the like, wherein the sorting is generally carried out by adopting a vibration screening machine, a plurality of layers of screening plates are arranged in the vibration screening machine, namely, each layer of screening plate is screened according to the set granularity to obtain quartz sand with different granularities (meshes), but the screening mode has many problems, namely, the granularity of the firstly sorted quartz sand is not uniform, and some fine particles are easy to mix in larger sand grains, so that the granularity distribution of finished sand products cannot reach the standard due to different meshes of the screened standard sand; secondly, during the working process of the vibrating screen machine, a large amount of dust is generated due to the impact between sand grains or between the sand grains and the screen plate, the main component silicon dioxide of the dust has great health threat to human bodies, if the vibrating screen is not tightly sealed, the dust can fly around in a production area, the separated sand grains need to be further cleaned, and finally, due to the fact that the sand grains continuously impact the screen plate of the vibrating screen during the separation process, the durability of the screen plate is reduced, and the screen plate needs to be replaced after being used for a period of time. Therefore, the method of adopting the vibration screening is only suitable for the production of small batches.

In the conventional process flow of the quartz sand, the crushed sand needs to be cleaned and dried before separation, so that the production process is long and is not suitable for enterprises with high quartz sand yield.

Disclosure of Invention

The invention aims to provide a control system for sorting quartz sand, which meets the requirement of improving the sorting efficiency of the quartz sand.

In order to achieve the purpose, the basic scheme of the invention is as follows: a control system for sorting quartz sand comprises a control terminal and an execution device, wherein the execution device comprises a feeding mechanism and a sorting mechanism, the feeding mechanism comprises an overflow box, the upper end of the overflow box is open, and a water inlet is formed in the overflow box;

the sorting mechanism comprises a sorting box, the side wall of the sorting box is provided with a sand inlet communicated with the overflow box, and the height of the sand inlet is higher than the bottom of the overflow box; a row of separation cavities are arranged in the separation box in parallel, adjacent separation cavities are separated by a partition plate, the arrangement direction of the separation cavities is parallel to the feeding direction of the sand inlet, a plurality of water supply mechanisms for respectively supplying water to the separation cavities are arranged on the separation box, each water supply mechanism comprises a plurality of water spray holes, and the openings of the water spray holes face upwards;

the control terminal is used for controlling the water flow rate of the water supply mechanism and the water inlet according to the sorting granularity of the quartz sand in each sorting cavity, and the control terminal is also used for controlling the partition plates to ascend and descend according to the sorting granularity of the quartz sand in each sorting cavity.

The theory of operation and the beneficial effect of this basic scheme lie in:

1. water is introduced into the overflow box through the water inlet, quartz sand is introduced into the overflow box, the quartz sand and the water in the overflow box are mixed to form a sand-water mixture, and meanwhile, the sand-water mixture enters the separation box through the sand inlet under the action of water flow. Compare in directly using the conveyer belt to convey the quartz sand to the separation box, utilize rivers effect to carry the quartz sand in this application, can reduce the kinetic energy that the quartz sand enters into the separation box, avoid the initial kinetic energy influence of quartz sand to select separately the effect.

2. The separation intracavity is equipped with water supply mechanism, guarantee that every separation intracavity all fills water before selecting separately, when sand water mixture enters into first separation intracavity from advancing the sand mouth, receive the rivers effect and scatter and open, water supply mechanism continues the water supply simultaneously, because the water spray direction of hole for water spraying surpasss upwards, then the ascending hydraulic action of hole for water spraying spun water to quartz sand, can reduce the settling velocity of quartz sand granule, the sand grain of the biggest granularity overcomes the ascending water force effect of hole for water spraying (the effort of vertical direction) and subsides to the bottom of first separation intracavity, the sand grain of all the remaining granularities gets into the second separation intracavity along with the water flow effect (the effort of horizontal direction) of the sand water mixture of initial entering. Because the sand grains are blocked by the partition plate when turning over the partition plate along with the water flow acting force in the horizontal direction, the flow velocity of the water flow is continuously reduced in the process that the water flow is blocked by continuous turning over, so that the sedimentation rate of the sand grains is continuously increased, the particle size of the quartz sand grains which can overcome the hydraulic action in the vertical direction is gradually reduced in the subsequent separation cavities, the sand grains left in each separation cavity are different in particle size, and the separation is completed.

In the process, the hydraulic action is divided into action force in the vertical direction and action force in the horizontal direction, and meanwhile, the self gravity and the received buoyancy of sand grains are matched, namely the sand grains receive 4 action forces in the separation cavity.

3. The quartz sand is dispersed under the action of water flow in the separation cavity, and the quartz sand is suspended in water and continuously washed upwards by the water supply mechanism, so that the sand grains are cleaned, the steps of cleaning and drying the quartz sand before separation are not needed, the production process flow of the quartz sand is greatly shortened, and the production efficiency of the quartz sand is greatly improved. If sand particles impact on the side wall of the separation cavity, mud powder attached to the sand particles can further fall off in the collision process, and dust cannot fly in water, so that the processing environment is greatly improved.

4. Meanwhile, the water flow of the water supply mechanism and the water inlet is controlled by the control terminal, and the lifting height of the partition plate is controlled, so that the particle size distribution of the sorted quartz sand is finer, if the particle size of the sorted quartz sand is needed to be finer, the water flow of the water supply mechanism and the water inlet can be controlled to be increased, at the moment, the upward hydraulic action of water sprayed from the water spray holes on the quartz sand is increased, after the water flow is increased, the particle size of the quartz sand settled in each sorting cavity is larger compared with that of the quartz sand when the water flow is smaller, and as the particle size of the quartz sand is larger, the settling position is lower, the quartz sand with smaller particle size can enter the next sorting cavity along with the water under the water flow action (horizontal acting force) of the sand-water mixture entering at first, and as the water flow in the horizontal direction is not blocked by the partition plate, and the transmission distance is too far, the water power is gradually attenuated until the quartz sand with smaller granularity can not be transported, and the quartz sand with smaller granularity can be transmitted to a farther sorting cavity due to the fact that the water flow of the water inlet is increased, namely the water power in the horizontal direction is increased, so that the granularity distribution of the quartz sand in each sorting cavity is finer.

By the method, the purpose of automatic control can be achieved, the quartz sand sorting efficiency is improved, and automatic adjustment of water flow and height of the partition plates according to actual requirements is facilitated, so that the particle size distribution of the quartz sand settled in each sorting cavity meets the actual requirements.

The device further comprises a displacement sensor for detecting the lifting position of the partition plate, and the displacement sensor is electrically connected with the control terminal;

the baffle is equipped with in the separation box and is used for driving the gliding driving piece of sliding part including fixing fixed part and the vertical sliding connection sliding part in the separation box, control terminal is through controlling the lifting of driving piece control baffle.

In this way, the purpose of controlling the lifting of the partition board can be achieved, and the lifting height of the partition board can be known through the feedback of the displacement sensor, so that the adjustment is convenient.

The water flow meter is used for detecting water flow and is electrically connected with the control terminal;

the water supply mechanism is arranged at the bottom of the separation box and comprises a plurality of water supply pipes communicated with the bottom of each separation cavity, water spraying parts are communicated with the upper ends of the water supply pipes, water spraying holes are formed in the water spraying parts and vertically upwards arranged, the water spraying holes and the water inlets are provided with regulating valves used for controlling water flow, and the control terminal controls the water flow of the water supply mechanism and the water inlets through the control regulating valves.

In this way, accomplish the control to the discharge size that supplies water mechanism and water inlet with regard to accessible control terminal, realize the automatic control function, and can learn the size of discharge through the feedback of water flowmeter, be convenient for adjust.

And the water supply pipe is provided with a plurality of water supply pipes and is arranged at the bottom of the separation cavity, because the water body has flowing dispersibility, if only one water supply pipe is arranged, the impact force of the water flow right above the water supply pipe is the largest, and the impact force is reduced due to the dispersion right above the water supply pipe, the influence on the sedimentation rate of the sand grains is reduced, and the separation of the sand grains is further influenced;

the water supply pipes are vertically upward, and under the condition that the number and the pipe diameters of the water supply pipes are fixed, the occupied area of the plurality of water supply pipes in the horizontal direction is the smallest, and if the water supply pipes are obliquely arranged, the occupied area of the water supply pipes in the horizontal direction is larger, so that the sedimentation of sand grains is easily influenced.

Further, an ultrasonic generator is arranged on at least one sorting cavity.

Ultrasonic wave that supersonic generator produced passes through rivers and acts on quartz sand granule for quartz sand granule surface adhesion's mud powder drops, because quartz sand granule's shape is irregular, and the mud powder in the less gap only uses the ultrasonic wave to wash through the difficult sanitization of rivers effect, makes the cleanliness factor of quartz sand granule higher.

Further, the ultrasonic generator is arranged at the bottom of the sorting cavity close to one side of the sand inlet.

Since the quartz sand in the separation chamber close to the sand inlet is not cleaned and the amount of mud powder or fine powder attached to the quartz sand is large, the quartz sand is preferably arranged on the separation chamber close to the sand inlet when the number of the ultrasonic generators is limited in view of cost saving.

And a plurality of water spray sets are in the bottom of selecting separately the chamber, and the sand grain sinks to select separately the chamber bottom when easy card between adjacent water spray, is difficult to discharge, sets up supersonic generator in the bottom of selecting separately the chamber, and then the ultrasonic action that the rivers that select separately the chamber bottom received is most obvious, and the vibration of rivers is most obvious, can avoid the sand grain card to a certain extent between adjacent water spray.

The ultrasonic generator is arranged at the bottom of the sorting cavity close to one side of the sand inlet, and ultrasonic waves generated by the ultrasonic generator act on quartz sand particles through water flow and can provide upward force for the quartz sand, so that the frequency of the ultrasonic generator can be changed, the force of the ultrasonic waves of the ultrasonic generator acting on the quartz sand particles through the water flow is changed, and the quartz sand sorting function is achieved.

Further, the control terminal comprises a controller, and the controller is used for controlling the frequency of the ultrasonic generator.

In this way, the frequency of the ultrasonic generator can be changed by the controller, and the degree of automation is higher.

Furthermore, the control terminal comprises a controller, and the controller is used for controlling the water supply mechanism and the water supply flow of the water inlet through controlling the opening degree of the valve of the regulating valve according to the set water flow.

In this way, the controller can control the water flow.

Further, the control terminal comprises a controller, and the controller is used for driving the partition plate to ascend and descend to the set partition plate ascending and descending height value by controlling the driving piece according to the set partition plate ascending and descending height value.

In this way, the height of the partition board can be adjusted through the controller, and the trouble of manually adjusting the height of the partition board is avoided.

Further, still including being located the pay-off case of overflow case top, the equal uncovered setting of upper and lower extreme of pay-off case is fixed with the buffer board on the lateral wall of the relative both sides of pay-off case, and the free end slope of buffer board sets up downwards, and the buffer board on the lateral wall of pay-off case both sides is crisscross each other to the projected area of the vertical direction of buffer board is greater than the half of pay-off case inner chamber area.

On one hand, when the quartz sand falls into the overflow box, the downward force is smaller, the sinking depth of the quartz sand in the overflow box is small, so that the quartz sand is convenient to be mixed with a water body and enters the sorting box under the action of water flow; on the other hand, can avoid quartz sand to fall into the overflow incasement fast and make the water in the overflow incasement splash away in a large number for sand water proportion is difficult to control.

And the buffer plates on the side walls of the two sides of the feeding box are mutually staggered, and the projection area of the vertical direction of the buffer plates is larger than one half of the area of the inner cavity of the feeding box, so that the quartz sand particles can be impacted on the buffer plates layer by layer and can slide down along the buffer plates.

Furthermore, the control terminal also comprises an input module, and the input module is in signal connection with the controller.

The input module can realize the input setting of data, such as the setting of the height of the partition plate, the setting of the frequency of the ultrasonic generator or the setting of the water flow, and the like, and is convenient for operators to operate and control.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment and a second embodiment of a control system for sorting quartz sand according to the present invention;

FIG. 2 is a front cross-sectional view of the water supply pipe of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a schematic structural diagram of a third embodiment of a control system for sorting silica sand according to the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4;

FIG. 6 is a logic block diagram of a first embodiment of a control system for sorting silica sand according to the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a feeding box 1, a buffer plate 2, a support column 3, a feeding hole 4, an overflow box 5, a water inlet 6, a sorting box 7, a sorting cavity 8, a partition plate 9, a sand discharge hole 10, a water supply pipe 11, a water spray disc 12, a sand inlet 13, a header pipe II 14, an end cover 15, a water cavity 16, a water spray hole 17, a water inlet block 18, a through hole 19, an ultrasonic generator 20, a sliding part 21, a fixing part 22 and a sand cleaning pipe 23.

Example one

An embodiment substantially as shown in figures 1 and 6: the utility model provides a control system for select separately quartz sand, includes control terminal, feed mechanism and sorting mechanism, and control terminal includes controller and input module, and input module and controller signal connection, the input module in this embodiment is the touch-sensitive screen, and the touch-sensitive screen that the touch-sensitive screen can adopt pedology, siemens or mitsubishi, and its human-computer interface software adopts corresponding industrial control configuration software: the department of pediatrics MT4000 series, Siemens HMI-TP1500 or Mitsubishi GOT2000 series, in the embodiment, Mitsubishi touch screen and Mitsubishi GOT2000 series human-computer interface are selected, and in the embodiment, Siemens PLC is selected as a controller, and the model is S7-400.

Feed mechanism includes overflow box 5 and is located the pay-off case 1 of overflow box 5 top, and the upper and lower end of pay-off case 1 and the upper end of overflow box 5 are all uncovered setting, are equipped with a plurality of water inlets 6 on the

overflow box

5, and 6 evenly distributed of a plurality of water inlets are in overflow box 5 bottoms. Combine shown in fig. 3, 6 departments of water inlet are equipped with the electric proportional control valve that is used for controlling discharge, and electric proportional control valve and controller signal connection, controller are used for the discharge size that sets for according to input module, and the discharge size that 6 water supplies of water inlet are controlled through the valve opening degree of controlling electric proportional control valve, and its model number of electric proportional control valve is: Q941F-16P-DN250, the lower extreme of water inlet 6 communicates with the inlet tube, and a plurality of inlet tubes communicate on a house steward I. The upper end of the water inlet 6 is fixed with a water inlet block 18, a plurality of through holes 19 are arranged on the water inlet block 18 along the circumferential direction, and one end of each through hole 19, which is far away from the axis of the water inlet block 18, inclines upwards.

As shown in fig. 1, the lower end of a feeding box 1 is a feeding hole 4, buffer plates 2 are fixed on the side walls of the two opposite sides of the feeding box 1, the free ends of the buffer plates 2 are inclined and arranged downwards, the buffer plates 2 on the side walls of the two sides of the feeding box 1 are arranged in a staggered mode, rubber pads are fixed on the upper surfaces of the buffer plates 2, supporting columns 3 are fixed at the lower ends of the buffer plates 2, and the projection area of the buffer plates 2 in the vertical direction is larger than one half of the area of the inner cavity of the feeding box 1.

Sorting mechanism includes separation box 7, and separation box 7 right side is equipped with the sand inlet 13 that supplies the sand water mixture to get into, and separation box 7 left side is equipped with the sand outlet that supplies water discharge. A plurality of partition plates 9 are arranged in the sorting box 7 in parallel along the length direction, each partition plate 9 comprises a fixing part 22 and a sliding part 21, the fixing part 22 and the sliding part 21 are both plate-shaped, the fixing part 22 is welded in the sorting box 7, the sliding part 21 is vertically and slidably connected to the right side of the fixing part 22, a displacement sensor for detecting the lifting position of each partition plate 9 is arranged at the bottom of each partition plate 9, the displacement sensors are electrically connected with a controller, each displacement sensor is an MPS-L-MA, MPS-M-MA or MPS-S-MA type pull rope displacement sensor, and the MPS-M-MA type pull rope displacement sensor is selected in the embodiment. Specifically, sorting box 7 is preceding, all be equipped with the spout on the lateral wall of back both sides, fixed part 22 sliding connection is in the spout, and sorting box 7 bottom is equipped with and is used for driving the gliding driving piece of sliding part 21, and the controller is used for according to the baffle 9 lift height value of setting for through input module, through controlling the driving piece drive baffle 9 lift to this baffle lift height value of setting for, and the driving piece adopts turbine worm lift speed reducer in this embodiment, and WSH3T type turbine worm lift is chooseed for use to its model.

The height of the partition boards 9 is lower than that of the side wall of the sorting box 7. A plurality of baffles 9 separate sorting box 7 for a plurality of sorting chambers 8, and sorting chambers 8 all are the cuboid form, and sorting chamber 8's bottom center department is equipped with row's sand mouth 10 that can open and close, and is concrete, and sorting box 7 bottom sliding connection has the bottom plate that can shelter from row's sand mouth 10, and sorting chamber 8's bottom all is equipped with the water conservancy diversion portion that is the back taper.

The bottom that lies in every separation chamber 8 on the separation box 7 all is equipped with water supply mechanism, and water supply mechanism includes many perpendicular ascending delivery pipes 11, and all delivery pipes 11's pipe diameter is unanimous. The delivery pipe 11 runs through water conservancy diversion portion and extends to in selecting separately the chamber 8, and many delivery pipes 11 use row sand mouth 10 as the centre of a circle along water conservancy diversion portion circumference equipartition, and many delivery pipes 11's upper end parallel and level. The lower ends of a plurality of water supply pipes 11 in each sorting cavity 8 are communicated with a header pipe II 14, the header pipe II 14 is communicated with a water pump, and one end, far away from the water pump, of the header pipe II 14 is provided with a sealed end cover 15.

The upper ends of the water supply pipes 11 are all communicated with water spraying members, and in the embodiment, as shown in fig. 2, the water spraying members are water spraying disks 12 fixed at the upper ends of the water supply pipes 11, and the sizes of the water spraying disks 12 are all consistent. The top of the water spray disk 12 is in an arc shape protruding upwards, i.e. the upper end of the water spray disk 12 is similar to a hemisphere. The inside of the water spraying disc 12 is provided with a water cavity 16 communicated with the water supply pipe 11, the side wall of the water spraying disc 12 is provided with two water spraying holes 17 communicated with the water cavity 16 along the circumferential direction, one ends of the water spraying holes 17 far away from the axis of the water spraying disc 12 are inclined upwards, the inclination angles of the two water spraying holes 17 are consistent, the water spraying holes 17 are also provided with the electric proportional control valve, and the electric proportional control valve is also connected with a controller signal. And house steward I and house steward II 14 all are equipped with the water flowmeter that is used for detecting discharge, and the water flowmeter is connected with the controller electricity, and the water flowmeter model can select for use is: the LDG-MIK electromagnetic flow meter, the LUGB-MIK-A flow meter or the LWGY-MIK liquid turbine flow meter is selected from the LWGY-MIK liquid turbine flow meter in the embodiment.

The sorting box 7 is provided with an ultrasonic generator, the ultrasonic generator is in signal connection with a controller, the controller is used for controlling the frequency of the ultrasonic generator according to the ultrasonic frequency set by the input module, the type of the ultrasonic generator in the embodiment is komada/KMD-28 or THD-2010Q, the type of the ultrasonic generator in the embodiment is komada/KMD-28, (how to install the existing ultrasonic cleaning machine can be referred, and details are not described in the embodiment), concretely, the number of the ultrasonic generators is consistent with the number of the sorting cavities 8, namely, the ultrasonic generators (not shown in the figure) are correspondingly installed on the sorting box 7 corresponding to the side walls of each sorting cavity 8, the frequency of the ultrasonic generators is 28khz-42khz, and the frequency of the ultrasonic generators gradually decreases along the flow direction of the sand-water mixture.

The specific implementation process is as follows:

before sorting, an operator can know the granularity of quartz sand needing sorting in each sorting cavity according to the requirement, and can set corresponding parameters of water flow, the frequency of an ultrasonic generator and the lifting height of the partition plate 9 through the touch screen according to the known granularity of quartz sand sorting in each sorting cavity 8 so that the quartz sand in each sorting cavity 8 reaches the required sorting granularity, and the current actual water flow and the lifting height of the partition plate 9 can be known through the feedback of a water flow meter and a displacement sensor, so that the quartz sand sorting device is convenient to regulate and control in time. If the particle size of the quartz sand is known to be three grades of a, B and C, the particle size of a is specified to be larger than the particle size of B and larger than the particle size of C, then the quartz sand with the particle size of a needs to be sorted to the first sorting cavity 8 close to the sand inlet 13, the quartz sand with the particle size of B needs to be sorted to the second sorting cavity 8, and the quartz sand with the particle size of C needs to be sorted to the third sorting cavity 8, then the parameter of the water flow needs to be adjusted to be B, the lifting height of the partition plate 9 is C, and the frequency of the ultrasonic generator 20 is C.

When the sorting is started, parameters of the water flow of the water supply mechanism are input through the touch screen, and when the controller receives parameter signals of the water flow, the electric proportional control valve in the water supply mechanism is controlled to be opened by a corresponding size, and at the moment, water starts to be introduced into the sorting cavity 8.

And through the parameter of the discharge size of touch-sensitive screen input water inlet 6, when the controller received the parameter signal of discharge size, the electronic proportional control valve of control water inlet 6 department opened corresponding size, and water inlet 6 lasted the income water in to overflow case 5 this moment to through the discharge size of water flowmeter detectable this moment, and feed back the touch-sensitive screen display with it, the operating personnel of being convenient for in time regulates and control according to actual discharge. Then throw into the workbin 1 with dry quartz sand, quartz sand receives the buffer board 2 when dropping downwards in the workbin 1 and stops, and quartz sand's movement potential energy is mostly absorbed by buffer board 2, makes it enter into overflow box 5 with lower speed, avoids making the water in the overflow box 5 receive the impact of quartz sand to splash away in a large number.

When the surface of water in the overflow box 5 and the sand inlet 13 are parallel and level, the water in the overflow box 5 moves the quartz sand to enter the separation box 7 through the sand inlet 13, because the water inlet 6 continuously leads water to the overflow box 5, and the water inlet 6 is arranged at the bottom of the overflow box 5, the water flow has an upward effect on the quartz sand, and the quartz sand is prevented from sinking to the bottom in the overflow box 5. Water in the overflow box 5 continuously drives the quartz sand to enter the separation cavity, and the sand-water mixture entering the separation cavity has horizontal force.

When the sand-water mixture enters the first sorting cavity 8 from the sand inlet 13, the sand-water mixture is dispersed by the action of water flow in the sorting cavity 8, meanwhile, the water supply mechanism continuously supplies water, and the water flow sprayed out through the water spraying holes 17 has upward component force, so that the settling velocity of quartz sand particles in the sorting cavity 8 can be reduced. The sand grains with the largest size are settled to the bottom of the first sorting chamber 8 by overcoming the upward water force (vertical force) of the water spray holes 17, and the sand grains with the rest sizes turn over the partition plate 9 to enter the second sorting chamber 8 along with the water flow force (horizontal force) of the sand-water mixture which enters initially. Because the sand grain receives stopping of baffle 9 when the baffle 9 is overturned along with the rivers effort of horizontal direction, rivers are constantly overturning obstructed in-process, and the velocity of flow constantly reduces for the settling rate of sand grain constantly increases, consequently in subsequent separation chamber 8, can overcome the quartz sand granule granularity of the hydraulic action of vertical direction and reduce gradually, make the sand grain granularity that leaves in every separation chamber 8 different, accomplish and select separately.

In the sorting process, the bottom plate can block the sand discharge port 10, and the bottom plate is slid after sorting is finished to discharge sand grains and water in each sorting cavity 8, so that continuous stopping is needed when a large number of sand grains are sorted, and the sorting is troublesome; the sand discharge port 10 can be directly opened, sand particles settled to the bottom of the separation cavity 8 are directly discharged along the surface of the flow guide part, however, more discharged water is arranged, the water also needs to be collected when the sand particles are collected, and the collected water is introduced into the separation cavity 8 again for recycling.

Above-mentioned in-process starts supersonic generator, and the ultrasonic wave that supersonic generator produced passes through rivers and acts on quartz sand granule for quartz sand granule surface adhesion's mud powder drops, because quartz sand granule's shape is irregular, and the mud powder in the less gap only passes through the difficult sanitization of rivers effect, uses the effect of ultrasonic wave cooperation water power to wash, makes quartz sand granule's cleanliness factor higher.

Example two

The difference between the present embodiment and embodiment 1 is that the ultrasonic generators 20 are arranged differently, specifically, as shown in fig. 1, the number of the ultrasonic generators 20 is half of the number of the sorting chambers, and the ultrasonic generators 20 are correspondingly installed at the bottom of half of the sorting chambers 8 near the sand inlet 13, and the frequency of the ultrasonic generators 20 is set to 33 khz. In the implementation process, the ultrasonic generator 20 is started intermittently, the time interval of each start is 2-4s, and the start time interval of the ultrasonic generator 20 is gradually increased along the flowing direction of the sand-water mixture.

Compared with embodiment 1, in the present embodiment, the frequency of the ultrasonic generators 20 is kept consistent, the number of the ultrasonic generators 20 is reduced, and the ultrasonic generators 20 are intermittently started, so that energy can be saved to a certain extent. The ultrasonic generator 20 is arranged on the sorting chamber 8 close to the sand inlet 13, because the quartz sand in the sorting chamber 8 close to the sand inlet 13 is not cleaned, and more mud powder or fine powder is attached to the quartz sand, when the frequency of the ultrasonic wave is fixed, the starting time interval of the ultrasonic generator 20 is shorter, so that the mud powder on the quartz sand is intensively cleaned, and a better cleaning effect can be obtained.

And intermittently starting the ultrasonic generator 20, has the following effects: when the sand grains are continuously acted by the ultrasonic waves and the water flow, the resultant force of the sand grains with the same granularity in the sorting cavity 8 is constant, after the ultrasonic generator 20 is suddenly closed, the acting force of the sand grains is reduced by one, the original resultant force of the sand grains is broken, the movement track in front of the sand grains is changed to a certain extent, the ultrasonic generator 20 is suddenly opened, the movement track of the sand grains is recovered, in the process, the sand grains vibrate to a certain degree, and the cleaning effect of the sand grains is good.

Meanwhile, in the present embodiment, the ultrasonic generator 20 is installed at the bottom of the sorting chamber 8. Compared with the embodiment 1, the water supply pipes 11 are arranged on the bottom wall of the separation cavity 8, sand is prone to being clamped between the adjacent water supply pipes 11 when settling to the bottom of the separation cavity 8 and is difficult to discharge, the ultrasonic generator 20 is arranged at the bottom of the separation cavity 8, the water flow at the bottom of the separation cavity 8 is most obvious in ultrasonic action, vibration of the water flow is most obvious, and sand can be prevented from being clamped between the adjacent water spraying discs 12 to a certain extent.

EXAMPLE III

The difference between this embodiment and embodiment 1 is that the water supply mechanism is arranged differently, specifically, as shown in fig. 4 and 5, the water spray member is a water spray disk 12 rotatably connected to the upper end of the water supply pipe 11, the water spray holes on the same water spray disk 12 are all arranged obliquely along the same direction of the circumference of the water chamber, and the water flow is discharged from each water spray hole 17 through the water chamber 16, and at the same time, the water spray disk 12 is pushed in the counterclockwise (or counterclockwise) direction of the water flow, so that the water flow rotates. The bottom of the water spraying disc 12 is provided with a sand cleaning hole, only one sand cleaning hole is arranged for reducing the shunt of the sand cleaning hole in the embodiment, the sand cleaning pipe 23 is bonded at the sand cleaning hole, the sand cleaning pipe 23 is a rubber pipe in the embodiment, and the outlet of the sand cleaning pipe 23 faces the root of the water supply pipe 11.

Because the bottom of each sorting cavity 8 all sets up to the toper that carries out the water conservancy diversion to the sand grain, consequently the sand grain can flow along the bottom of sorting cavity 8 and discharge from sand discharge port 10, and this in-process, some sand grain can be piled up at the root of delivery pipe 11 for this part of sand grain can't be discharged, consequently sets up the sand removal hole in the bottom of water cavity 16, and the sand removal hole is discharged can be followed to some clear water in the water cavity 16 to act on the root of delivery pipe 11, washes away the sand grain of this department. The clear water that follows the sand removal hole through sand removal pipe 23 discharge can directly erode the root of delivery pipe 11 like this, will pile up the sand washing away at delivery pipe 11 root, and the revolution takes place along with water spray tray 12 for sand removal pipe 23 simultaneously, and it is when rotating around delivery pipe 11 for the water below water spray tray 12 produces spiral rivers, further slows down the settling rate of sand grain, makes the granule size sand grain that probably drops here come up along with the rivers, improves the particle size distribution of the back sand grain of sorting.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. A control system for sorting quartz sand, characterized by: the automatic sorting device comprises a control terminal and an execution device, wherein the execution device comprises a feeding mechanism and a sorting mechanism, the feeding mechanism comprises an overflow box, the upper end of the overflow box is open, and a water inlet is formed in the overflow box;

the control terminal is used for controlling the water flow rate of the water supply mechanism and the water inlet to supply water according to the sorting granularity of the quartz sand in each sorting cavity, and is also used for controlling the partition plates to lift according to the sorting granularity of the quartz sand in each sorting cavity;

the feeding box is positioned above the overflow box, the upper end and the lower end of the feeding box are both arranged in an open manner, buffer plates are fixed on the side walls of two opposite sides of the feeding box, the free ends of the buffer plates are arranged obliquely downwards, the buffer plates on the side walls of the two sides of the feeding box are mutually staggered, and the projection area of the buffer plates in the vertical direction is larger than one half of the area of the inner cavity of the feeding box;

the ultrasonic generator is arranged on at least one sorting cavity and is arranged at the bottom of the sorting cavity close to one side of the sand inlet, the ultrasonic generator is intermittently started, and the starting time interval of the ultrasonic generator gradually increases along the flowing direction of the sand-water mixture;

the water flowmeter is used for detecting water flow and is electrically connected with the control terminal; the water supply mechanism is arranged at the bottom of the sorting box and comprises a plurality of water supply pipes communicated with the bottom of each sorting cavity, the upper ends of the water supply pipes are communicated with water spraying pieces, water spraying holes are formed in the water spraying pieces, the water supply pipes are vertically upward, the water spraying holes and the water inlets are respectively provided with a regulating valve for controlling water flow, and the control terminal controls the water flow of water supplied by the water supply mechanism and the water inlets through the regulating valves;

the water spray piece is for rotating the water spray disk of connecting in the delivery pipe upper end, and the hole for water spraying on same water spray disk all sets up along the same direction slope of water cavity circumference, and rivers are when each hole for water spraying exhaust from the water cavity, and the water spray disk receives the clockwise or anticlockwise thrust of rivers and takes place to rotate, is equipped with the sand cleaning hole bottom the water spray disk, and sand cleaning hole department bonds and has the sand cleaning pipe, and the export of sand cleaning pipe is towards the root of delivery pipe.

2. The control system for sorting quartz sand of claim 1, wherein: the device also comprises a displacement sensor for detecting the lifting position of the partition plate, and the displacement sensor is electrically connected with the control terminal;

3. The control system for sorting quartz sand of claim 1, wherein: the control terminal comprises a controller, and the controller is used for controlling the frequency of the ultrasonic generator.

4. The control system for sorting quartz sand of claim 1, wherein: the control terminal comprises a controller, and the controller is used for controlling the water flow of the water supply mechanism and the water inlet according to the set water flow by controlling the opening degree of the valve of the regulating valve.

5. The control system for sorting quartz sand of claim 2, wherein: the control terminal comprises a controller, and the controller is used for driving the partition plate to ascend and descend to the set partition plate ascending and descending height value by controlling the driving piece according to the set partition plate ascending and descending height value.

6. A control system for sorting quartz sand according to any one of claims 3 to 5, wherein: the control terminal further comprises an input module, and the input module is in signal connection with the controller.