CN113751181A - Discharging method for improving discharging efficiency of filling type jigging column - Google Patents
Discharging method for improving discharging efficiency of filling type jigging column Download PDFInfo
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- CN113751181A CN113751181A CN202111078554.XA CN202111078554A CN113751181A CN 113751181 A CN113751181 A CN 113751181A CN 202111078554 A CN202111078554 A CN 202111078554A CN 113751181 A CN113751181 A CN 113751181A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
- B03B5/10—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on jigs
- B03B5/24—Constructional details of jigs, e.g. pulse control devices
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention belongs to the field of solid material discharge in slurry, and particularly relates to a discharge method for improving discharge efficiency of a filling type jigging column. A discharging method for improving discharging efficiency of a filling type jigging column is completed by a discharging system and comprises the following steps: s1-1: checking the air tightness of the discharge system; s1-2: injecting slurry into the filling type jigging column, and injecting water into the pulse reciprocating generation bin through the water inlet to a preset height; s1-3: water in the pulsation reciprocating generation bin generates pulse reciprocating motion among the pulsation reciprocating generation bin, the discharge bin and the filling type jigging column so as to deposit solid materials sorted by the filling type jigging column in the discharge bin in the process of the pulsation reciprocating motion; s1-4: the solid material in the discharge bin is discharged from the discharge bin under the action of the pulsating reciprocating motion driving force of water and the self gravity; s1-5: and repeating the operations from S1-2 to S1-4 until all the solid materials sorted by the packed jigging column are discharged out of the discharge bin.
Description
Technical Field
The invention belongs to the field of solid material discharge in slurry, and particularly relates to a discharge method for improving discharge efficiency of a filling type jigging column.
Background
In the mineral separation industry, the discharge of solid materials in slurry is always an industry problem, the prior art document with patent number ZL95195017.7 and named as solid particle gravity separation equipment and process discloses separation equipment for separating phosphate ores into materials with different densities, but the equipment has the problems that the discharge of the materials is not easy to control due to concentration in the discharge process, the discharge of the materials is not smooth, the blockage of a discharge port is easy to cause, the smooth discharge can be ensured only by reducing the discharge concentration, when the materials are directly discharged from the bottom of a column through a valve, the discharge of the materials is not timely caused by the small opening degree of the valve, the blockage of the discharge port is easy to cause, the reduction of the mineral grade is caused by the large opening degree of the valve, the separation effect cannot be achieved, the problems that the subsequent separation indexes are influenced by the damage caused by the overlarge discharge amount of the steady-state material distribution in the column, and the control of the discharge concentration and the discharge amount of the materials cannot be accurate, too low discharge concentration can increase the energy consumption of the subsequent process, the automation degree is not high, and a large amount of manpower is needed.
Disclosure of Invention
In view of the above, the invention provides a discharging method for improving discharging efficiency of a filling type jigging column.
The invention provides a discharging method for improving discharging efficiency of a filling type jigging column, which is completed by a discharging system, wherein the discharging system comprises a discharging bin, a pulse reciprocating generation bin and a water injection device, a feeding hole of the discharging bin is communicated with a first discharging hole of the filling type jigging column, a first valve is arranged on a communicating pipeline, the pulse reciprocating generation bin is hollow, an air inlet and an air outlet which are communicated with the pulse reciprocating generation bin are respectively arranged at the upper part of the pulse reciprocating generation bin, a fifth valve and a sixth valve are respectively arranged at the air inlet and the air outlet of the pulse reciprocating generation bin, a water inlet is arranged on the pulse reciprocating generation bin, a first liquid inlet of the discharging bin is communicated with a liquid outlet of the pulse reciprocating generation bin, a second valve is arranged on the communicating pipeline, a first liquid inlet of the discharging bin is positioned above the feeding hole, a third valve is arranged at the discharging hole of the discharging bin, the water injection device is communicated with the second liquid inlet of the discharge bin, a fourth valve is arranged on the communicating pipeline, and the water injection device is used for injecting water into the discharge bin;
the method further comprises the following steps:
s1-1: checking the air tightness of the discharging system, and if the air tightness of the system is intact, carrying out the next step;
s1-2: injecting slurry into the filling type jigging column, closing the third valve, the fourth valve and the seventh valve, opening the first valve and the second valve, and injecting water into the pulse reciprocating generation bin through the water inlet to a preset height;
s1-3: closing the sixth valve, opening the fifth valve, pushing the water in the pulse reciprocating generation bin to move to enter the filling type jigging column through the discharge bin by compressed gas, closing the fifth valve and opening the sixth valve until the water in the pulse reciprocating generation bin returns to the original liquid level position, repeating the operation of the step, and enabling the water in the pulse reciprocating generation bin to generate pulse reciprocating motion among the pulse reciprocating generation bin, the discharge bin and the filling type jigging column so as to deposit solid materials sorted by the filling type jigging column in the discharge bin in the pulse reciprocating motion process;
s1-4: when the height of the solid material deposited in the discharge bin reaches the feed inlet of the discharge bin, closing the first valve, opening the third valve, and enabling washing water to enter the flushing pipe, meanwhile, repeating the S1-3 action of the sixth valve and the fifth valve until the water in the pulsation reciprocating generation bin directly performs pulsation reciprocating motion in the discharge bin and the pulsation reciprocating generation bin, and discharging the solid material in the discharge bin from the discharge bin under the action of the pulsation reciprocating motion driving force of the water and the self gravity; after the materials in the discharging bin are discharged, the third valve and the second valve are closed, the fourth valve and the seventh valve are opened, and the water injection device injects water into the discharging bin;
s1-5: and when the water level in the discharging bin is over the first liquid inlet, closing the fourth valve and the seventh valve, opening the first valve and the second valve, and repeating the operations from S1-2 to S1-4 until all the solid materials separated by the filling type jigging column are discharged out of the discharging bin.
Further, the water injection system includes water receiver and water bucket, the water bucket includes inside hollow cavity and first liquid delivery pipe, the top and the bottom of cavity be equipped with respectively with the through-hole of liquid delivery pipe looks adaptation, first liquid delivery pipe sets up in the cavity, its both ends are fixed respectively and are corresponded in the through-hole, the one end of water bucket pass through the pipeline with arrange the second inlet intercommunication in storehouse, the water receiver sets up the other end of water bucket, its liquid outlet are equipped with second liquid delivery pipe, just the tip of second liquid delivery pipe extends to the water bucket corresponds the end, and with first liquid delivery pipe intercommunication, the pipe diameter of first liquid delivery pipe is greater than the pipe diameter of second liquid delivery pipe, be equipped with the seventh valve on the second liquid delivery pipe.
Furthermore, a liquid inlet of the filling type jigging column is communicated with a liquid outlet of the pulse reciprocating generation bin, and an eighth valve is arranged on a communicated pipeline.
Furthermore, a flushing pipe is arranged in the material discharging bin, one end of the flushing pipe extends to the upper portion of the material discharging port of the material discharging bin, the other end of the flushing pipe penetrates through the material discharging bin and extends out of the material discharging bin, and a plurality of water outlet holes are formed in the flushing pipe.
Further, the specific steps of S1-4 are as follows: the initial state of the eighth valve is a closed state, when the deposition height of the solid material in the discharge bin reaches the feed inlet of the discharge bin, the first valve is closed, the third valve and the second valve are opened, flushing water enters the flushing pipe, and meanwhile, the sixth valve and the fifth valve repeat S1-3 actions until water in the pulsation reciprocating generation bin directly performs pulsation reciprocating motion in the discharge bin and the pulsation reciprocating generation bin; after the materials in the discharging bin are discharged, the third valve and the second valve are closed, the fourth valve and the seventh valve are opened, and the water in the water storage device is injected into the discharging bin through the water bucket.
Further, the specific steps of S1-4 are as follows: the initial state of the eighth valve is a closed state, when the deposition height of the solid materials in the discharging bin reaches the feeding hole of the discharging bin, the first valve and the second valve are closed, the third valve, the fourth valve, the eighth valve and flushing water enter the flushing pipe, after the materials in the discharging bin are discharged, the third valve is closed, the seventh valve is opened, and meanwhile, the sixth valve and the fifth valve repeat S1-3 actions until the water in the pulsation reciprocating generation bin directly performs pulsation reciprocating motion in the filling type jigging column and the pulsation reciprocating generation bin.
Further, after the water level in the discharging bin is over the first liquid inlet, the seventh valve, the fourth valve and the eighth valve are closed, the first valve and the second valve are opened, and the operations from S1-2 to S1-4 are repeated until all the solid materials sorted by the filling type jigging column are discharged out of the discharging bin.
The technical scheme provided by the invention has the beneficial effects that: the discharging method can realize stable conveying and discharging of the sorted materials in the filling type jigging column, can greatly improve the solid content of the materials, saves energy consumption for subsequent dehydration, drying and other processes, and can effectively solve the problem that the stable state of mineral distribution in the gravity separation column is damaged when the filling type jigging column directly discharges the materials through the valve, so that subsequent sorting indexes are influenced. In addition, the water with the pulsating reciprocating motion can also achieve the purpose of preventing the sorted materials in the filling type jigging column from being accumulated, and the sorting efficiency and effect of the filling type jigging column are improved.
Drawings
FIG. 1 is a schematic view of a discharge system according to the present invention;
fig. 2 is a schematic structural view of the water bucket of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-2, a discharging system for improving discharging efficiency of a packed jigging column comprises a discharging bin 10, a pulse reciprocating generation bin 20 and a water injection device, wherein a feeding port of the discharging bin 10 is communicated with a first discharging port of a packed jigging column 30, a first valve 40 is arranged on a communicating pipeline, the pulse reciprocating generation bin 20 is hollow, an air inlet and an air outlet which are communicated with the interior of the pulse reciprocating generation bin are respectively arranged at the upper part of the pulse reciprocating generation bin 20, a fifth valve 41 and a sixth valve 42 are respectively arranged at the air inlet and the air outlet of the pulse reciprocating generation bin, a water inlet 21 is arranged on the pulse reciprocating generation bin 20, a first liquid inlet of the discharging bin 10 is communicated with a liquid outlet of the pulse reciprocating generation bin 20, a second valve 43 is arranged on the communicating pipeline, the first liquid inlet of the discharging bin 10 is positioned above the feeding port, a discharging port of the discharging bin 10 is provided with a third valve 44, the water injection device is communicated with the second liquid inlet of the discharging bin 10, a fourth valve 45 is arranged on the communicating pipeline, and the water injection device is used for injecting water into the discharging bin 10.
In the present invention, the structure of the discharging bin 10 is not limited, and it may have any geometric shape, specifically, the discharging bin 10 in the present invention is a cylindrical closed structure, the discharging port is disposed at the bottom of the discharging bin 10, the feeding port is disposed at the middle of the discharging bin 10, the first liquid inlet is disposed at the upper part of the discharging bin 10, and the second liquid inlet is disposed at the top of the discharging bin 10. The packed jigging column 30 is a solid particle gravity separation device disclosed in the prior art document with the patent number of ZL95195017.7 and the patent name of the solid particle gravity separation device and the process, and therefore, the structure of the packed jigging column is not described in detail again in the invention. The pulse reciprocating generation bin 20 is filled with water with a certain volume, and the pulse reciprocating motion of the water in the pulse reciprocating generation bin between the pulse reciprocating generation bin and the discharge bin 10 is realized by filling compressed gas into the pulse reciprocating generation bin, specifically, the compressed gas is filled into the pulse reciprocating generation bin 20 by opening a fifth valve 41 at the gas inlet of the pulse reciprocating generation bin 20 and closing a sixth valve 42 at the gas outlet of the pulse reciprocating generation bin, the compressed gas pushes the liquid level in the pulse reciprocating generation bin to move downwards, the compressed gas is prevented from entering the pulse reciprocating generation bin and the inside of the pulse reciprocating generation bin is communicated with the atmosphere by closing the fifth valve 41 and opening the sixth valve 42, and the liquid level in the pulse reciprocating generation bin returns to the original liquid level position through the internal pressure. The pulse reciprocating generation bin 20 in the valve is of a cylindrical closed structure, a water inlet 21 is arranged in the middle of the pulse reciprocating generation bin 20, and a liquid outlet of the pulse reciprocating generation bin is arranged at the bottom of the pulse reciprocating generation bin. The first valve 40, the second valve 43 and the third valve 44 are used for realizing the communication and closing of the material conveying channel and the material discharging channel of the discharging bin 10, the sorted materials in the filling type jigging column 30 are conveyed into the discharging bin 10 in a timed and quantitative mode through the pulsating reciprocating motion of water in the pulse reciprocating generation bin 20, and the water injection device injects water into the discharging bin 10 so as to keep the stability of air pressure in the discharging bin 10 and the stability of the conveying speed of the sorted materials. The discharging device is different from the traditional direct discharging mode of the filled jigging column 30, the sorted materials of the filled jigging column 30 are conveyed into the discharging bin 10 in a fixed time and fixed quantity mode by means of external driving force, the stability of the air pressure in the discharging bin 10 is realized by means of water injection in the discharging bin 10, the stability of the conveying speed of the sorted materials is further realized, the internal air pressure imbalance of the filled jigging column 30 and the damage to the stable density distribution formed in the column due to sudden and large discharge of the sorted materials in the filled jigging column 30 are prevented, and the sorted materials with different densities can be effectively recovered.
In the above embodiment, the water injection system includes a water reservoir 50 and a water bucket 51, the water bucket 51 includes a hollow chamber and a first liquid sending pipe 52, the top end and the bottom of the chamber are respectively provided with a through hole adapted to the liquid sending pipe, the first liquid sending pipe 52 is disposed in the chamber, two ends of the first liquid sending pipe 52 are respectively fixed in the corresponding through holes, one end of the water bucket 51 is communicated with the second liquid inlet of the discharging bin 10 through a pipeline, the water reservoir 50 is disposed at the other end of the water bucket 51, a second liquid sending pipe is disposed at a liquid outlet of the water bucket 51, an end of the second liquid sending pipe extends to the corresponding end of the water bucket 51 and is communicated with the first liquid sending pipe 52, a pipe diameter of the first liquid sending pipe 52 is greater than a pipe diameter of the second liquid sending pipe, and a seventh valve 47 is disposed on the second liquid sending pipe.
In the present invention, the fourth valve 45 is disposed on a pipeline connecting the water bucket 51 and the discharging bin 10. The water storage device 50 stores water, when water needs to be supplemented into the discharging bin 10, the fourth valve 45 and the seventh valve 47 are respectively opened in sequence, so that the water in the water storage device 50 is conveyed into the discharging bin 10, the pipe diameter of the first liquid conveying pipe 52 is larger than that of the second liquid conveying pipe, gas in the discharging bin 10 is discharged, the rapid conveying in the water storage device 50 to the discharging bin 10 is guaranteed, and the water injection time is shortened.
In the above embodiment, the liquid inlet of the filling type jigging column 30 is communicated with the liquid outlet of the pulse reciprocating generation bin 20, and an eighth valve 48 is arranged on the communicated pipeline.
In the invention, after the eighth valve 48 is started, the liquid outlet of the pulse reciprocating generation bin 20 is communicated with the liquid inlet of the filling type jigging column 30, when the system is in a discharging stage, the pulse reciprocating motion in the filling type jigging column 30 can be ensured to be continuously carried out, minerals are continuously sorted, and the deposition and blockage of materials at the bottom of the column are avoided. It should be noted that the liquid inlet of the packed jigging column 30 of the present invention is referred to as patent number ZL95195017.7, which is named as the pulse water inlet of the gravity separation equipment for solid particles and the gravity separation equipment in the process.
In the above embodiment, the material discharge bin 10 is provided with the flushing pipe 12, one end of the flushing pipe 12 extends to above the material discharge port of the material discharge bin 10, the other end of the flushing pipe 12 passes through the material discharge bin 10 and extends out of the material discharge bin 10, and the flushing pipe 12 is provided with a plurality of water outlet holes.
In the invention, the flushing pipe 12 is of an L-shaped structure, the vertical section of the flushing pipe is positioned above the discharge hole of the discharge bin 10, and the water outlet holes are uniformly distributed on the vertical section of the flushing pipe 12. The flushing pipe 12 is used for injecting water into the discharging bin 10 to flush the discharging port of the discharging bin 10 so as to prevent the materials from being accumulated at the discharging port of the discharging bin 10.
It should be noted that, in order to improve the automation degree of the system and realize the timed and quantitative discharge of the sorted materials, the first valve 40, the second valve 43, the third valve 44, the fourth valve 45, the fifth valve 41, the sixth valve 42, the seventh valve 47 and the eighth valve 48 are all externally connected with a control system, and the control system controls the operations of the first valve 40, the second valve 43, the third valve 44, the fourth valve 45, the fifth valve 41, the sixth valve 42, the seventh valve 47 and the eighth valve 48.
A discharging method for improving discharging efficiency of a filling type jigging column comprises the following steps:
s1-1: checking the air tightness of the discharging system, and if the air tightness of the system is intact, carrying out the next step;
s1-2: injecting slurry into the filling type jigging column 30, sorting the slurry into the filling type jigging column 30, closing the third valve 44, the fourth valve 45, the seventh valve 47 and the eighth valve 48, opening the first valve 40 and the second valve 43, and injecting water into the pulse reciprocating generation bin 20 to a preset height through the water inlet 21;
s1-3: closing the sixth valve 42, opening the fifth valve 41, enabling compressed gas to enter the pulse reciprocating generation bin 20, pushing water in the pulse reciprocating generation bin to move until the water enters the filling type jigging column 30 through the discharge bin 10, closing the fifth valve 41 and opening the sixth valve 42, relieving the pressure inside the pulse reciprocating generation bin 20 until the water returns to the original liquid level position, further driving the sorted solid materials to enter the discharge bin 10, repeating the operation of the step, and enabling the water in the pulse reciprocating generation bin 20 to generate pulse reciprocating motion among the pulse reciprocating generation bin 20, the discharge bin 10 and the filling type jigging column 30 so as to deposit the sorted solid materials in the discharge bin 10 in the pulse reciprocating motion process;
s1-4, when the deposition height of the solid material in the discharge bin 10 reaches the feed inlet of the discharge bin 10, closing the first valve 40, opening the third valve 44, enabling washing water to enter the flushing pipe 12, enabling the seventh valve 47, the fourth valve 45 and the eighth valve 48 to be in a closed state, enabling the second valve 43 to be in an open state, simultaneously enabling the sixth valve 42 and the fifth valve 41 to repeat S1-3 actions, enabling the water in the pulsation reciprocating generation bin 20 to directly perform pulsation reciprocating motion in the discharge bin 10 and the pulsation reciprocating generation bin 20, and discharging the solid material in the discharge bin 10 from the discharge bin 10 under the action of the pulsation reciprocating motion driving force of the water and the self gravity; after the materials in the discharging bin 10 are discharged, the third valve 44 and the second valve 43 are closed, the fourth valve 45 and the seventh valve 47 are opened, and the water in the water storage device 50 is injected into the discharging bin 10 through the water bucket 51;
s1-5, after the water level in the discharging bin 10 is over the first liquid inlet, closing the seventh valve 47, the fourth valve 45 and the eighth valve 48, opening the first valve 40 and the second valve 43, and repeating the operations from S1-2 to S1-4 until all the solid materials sorted by the packed jigging column 30 are discharged out of the discharging bin 10.
As another embodiment of the present invention, a discharging method for improving discharging efficiency of a packed jigging column includes the steps of:
s2-1: checking the air tightness of the discharging system, and if the air tightness of the system is intact, carrying out the next step;
s2-2: injecting slurry into the filling type jigging column 30, sorting the slurry into the filling type jigging column 30, closing the third valve 44, the fourth valve 45, the seventh valve 47 and the eighth valve 48, opening the first valve 40 and the second valve 43, and injecting water into the pulse reciprocating generation bin 20 to a preset height through the water inlet 21;
s2-3: closing the sixth valve 42, opening the fifth valve 41, enabling compressed gas to enter the pulse reciprocating generation bin 20, pushing water in the pulse reciprocating generation bin to move until the water enters the filling type jigging column 30 through the discharge bin 10, closing the fifth valve 41 and opening the sixth valve 42, relieving the pressure inside the pulse reciprocating generation bin 20 until the water returns to the original liquid level position, further driving the sorted solid materials to enter the discharge bin 10, repeating the operation of the step, enabling the water in the pulse reciprocating generation bin to generate pulse reciprocating motion among the pulse reciprocating generation bin, the discharge bin 10 and the filling type jigging column 30, and enabling the sorted solid materials to be deposited in the discharge bin 10 in the pulse reciprocating motion process;
s2-4: when the height of the solid material deposited in the discharging bin 10 reaches the feeding hole of the discharging bin 10, closing the first valve 40 and the second valve 43, opening the third valve 44, the fourth valve 45, the eighth valve 48 and washing water to enter the washing pipe 12, discharging the material with high density and high solid content from the discharging hole of the discharging bin 10 by using self gravity, after the material in the discharging bin 10 is discharged, closing the third valve 44, opening the seventh valve 47, injecting the water in the water storage device 50 into the discharging bin 10 through the water hopper 51, simultaneously repeating the S1-3 action by the sixth valve 42 and the fifth valve 41 until the water in the pulsation reciprocating bin directly flows in the filling type jigging column 30 and the pulsation reciprocating bin 20 through the eighth valve 48, and avoiding the blockage caused by the accumulation of the material at the bottom of the filling type jigging column 30;
s2-5: and when the water level in the discharging bin 10 exceeds the first liquid inlet, closing the seventh valve 47, the fourth valve 45 and the eighth valve 48, opening the first valve 40 and the second valve 43, and repeating the operations from S1-2 to S1-4 until all the solid materials sorted by the filling type jigging column 30 are discharged out of the discharging bin 10.
It should be noted that, in the first embodiment and the second embodiment, when the discharge bin 10 is in the discharge stage, the pipeline of the flushing pipe 12 is connected, the flushing water enters the feeding bin 10, and when the discharge bin 10 is in the feeding stage, the pipeline of the flushing pipe 12 is disconnected, and no flushing water enters the discharge bin 10. In the invention, compared with the second embodiment, the first embodiment can discharge the material in the discharging bin 10 completely by using the driving force of the pulsating reciprocating motion at a higher speed, so that the accumulation of the bin opening of the material is avoided, and the discharging efficiency is improved; for minerals with high density and granularity and the like which are easy to settle, the second embodiment can ensure that the filling type jigging column 30 keeps pulsating reciprocating motion when the system is in the discharging time, avoids the bottom valve blockage caused by the rapid settling of the minerals in the column, and can select different discharging modes for the minerals with different properties so as to achieve the optimal index.
The discharging method is a method for conveying the sorted materials in the filled jigging column into the discharging bin in a timed and quantitative manner by adopting water with pulsating reciprocating motion, so that stable conveying and discharging of the sorted materials in the filled jigging column are realized, the solid content of the materials can be greatly improved, energy consumption is saved for subsequent dehydration, drying and other processes, and the problem that the stable state of mineral distribution in the gravity separation column is damaged when the filled jigging column directly discharges the materials through a valve, and subsequent sorting indexes are influenced is effectively solved. In addition, the water with the pulsating reciprocating motion can also achieve the purpose of preventing the sorted materials in the filling type jigging column from being accumulated, and the sorting efficiency and effect of the filling type jigging column are improved.
In addition, the discharging device and the discharging method are not limited to be applied to a filling type jigging column, and are also applicable to a thickener with a function of gravity separation of slurry in the prior art (such as the application number is CN202020362686.X, the patent name is an inclined plate combination device for increasing the sedimentation area of the thickener, such as the application number is CN202021691988.8, the patent name is a straight-line type round tank type inclined box thickener, such as the application number is CN200620121943.0, the patent name is a rakeless high-concentration thickener, such as the application numbers are CN201420021289.0, the patent names are inclined plate thickeners, and the types are NZS-12, NG-15 and NT-15), a separating device (such as the application number is CN201920917617.8, the patent name is a dynamic continuous sedimentation separating device), and the like.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A discharging method for improving the discharging efficiency of a filling type jigging column is characterized in that the method is completed by a discharging system, the discharging system comprises a discharging bin (10), a pulse reciprocating generation bin (20) and a water injection device, a feeding hole of the discharging bin (10) is communicated with a first discharging hole of a filling type jigging column (30), a first valve (40) is arranged on a communicating pipeline, the pulse reciprocating generation bin (20) is hollow, an air inlet and an air outlet which are communicated with the interior of the pulse reciprocating generation bin are respectively arranged on the upper portion of the pulse reciprocating generation bin, a fifth valve (41) and a sixth valve (42) are respectively arranged on the air inlet and the air outlet of the pulse reciprocating generation bin, a water inlet (21) is arranged on the pulse reciprocating generation bin (20), a first liquid inlet of the discharging bin (10) is communicated with a liquid outlet of the pulse reciprocating generation bin (20), and a second valve (43) is arranged on the communicating pipeline, the first liquid inlet of the discharging bin (10) is positioned above the feeding inlet of the discharging bin, the discharging outlet of the discharging bin (10) is provided with a third valve (44), the water injection device is communicated with the second liquid inlet of the discharging bin (10), a communicating pipeline is provided with a fourth valve (45), and the water injection device is used for injecting water into the discharging bin (10);
the method further comprises the following steps:
s1-1: checking the air tightness of the discharging system, and if the air tightness of the system is intact, carrying out the next step;
s1-2: injecting slurry into the filling type jigging column (30), closing the third valve (44), the fourth valve (45) and the seventh valve (47), opening the first valve (40) and the second valve (43), and injecting water into the pulse reciprocating generation bin (20) to a preset height through the water inlet (21);
s1-3: closing the sixth valve (42), opening the fifth valve (41), pushing the water in the pulsation reciprocating generation bin to move to enter the filling type jigging column (30) through the discharge bin (10) by compressed gas, closing the fifth valve (41) and opening the sixth valve (42) until the water in the pulsation reciprocating generation bin (20) returns to the original liquid level position, repeating the operation of the step, and enabling the water in the pulsation reciprocating generation bin to generate pulse reciprocating motion among the pulsation reciprocating generation bin, the discharge bin (10) and the filling type jigging column (30) so as to deposit the solid materials sorted by the filling type jigging column (30) in the pulsation reciprocating motion process in the discharge bin (10);
s1-4: when the height of the solid material deposited in the discharge bin (10) reaches the feed inlet of the discharge bin (10), closing the first valve (40), opening the third valve (44), and enabling washing water to enter the flushing pipe (12), meanwhile, repeating the S1-3 actions of the sixth valve (42) and the fifth valve (41), enabling water in the pulsation reciprocating generation bin (20) to directly perform pulsation reciprocating motion in the discharge bin (10) and the pulsation reciprocating generation bin (20), and discharging the solid material in the discharge bin (10) from the discharge bin (10) under the action of the pulsation reciprocating motion driving force of the water and the self gravity; after the materials in the discharging bin (10) are discharged, the third valve (44) and the second valve (43) are closed, the fourth valve (45) and the seventh valve (47) are opened, and the water injection device injects water into the discharging bin (10);
s1-5: and when the water level in the discharging bin (10) is not higher than the first liquid inlet, closing the fourth valve (45) and the seventh valve (47), opening the first valve (40) and the second valve (43), and repeating the operations from S1-2 to S1-4 until all the solid materials separated by the filling type jigging column (30) are discharged out of the discharging bin (10).
2. The discharging method for improving discharging efficiency of a packed jigging column according to claim 1, wherein the water injection system comprises a water storage device (50) and a water bucket (51), the water bucket (51) comprises a hollow chamber and a first liquid feeding pipe (52), the top end and the bottom of the chamber are respectively provided with a through hole matched with the liquid feeding pipe, the first liquid feeding pipe (52) is arranged in the chamber, the two ends of the first liquid feeding pipe are respectively fixed in the corresponding through holes, one end of the water bucket (51) is communicated with the second liquid inlet of the discharging bin (10) through a pipeline, the water storage device (50) is arranged at the other end of the water bucket (51), the liquid outlet of the water bucket is provided with a second liquid feeding pipe, the end of the second liquid feeding pipe extends to the corresponding end of the water bucket (51) and is communicated with the first liquid feeding pipe (52), the pipe diameter of the first liquid feeding pipe (52) is larger than the pipe diameter of the second liquid feeding pipe, and a seventh valve (47) is arranged on the second liquid sending pipe.
3. The discharging method for improving the discharging efficiency of the filled jigging column as claimed in claim 2, wherein the liquid inlet of the filled jigging column (30) is communicated with the liquid outlet of the pulse reciprocating generation bin (20), and an eighth valve (48) is arranged on the communicated pipeline.
4. A discharging method for improving the discharging efficiency of a packed jigging column according to claim 3, wherein a flushing pipe (12) is arranged in the discharging bin (10), one end of the flushing pipe (12) extends to above the discharging port of the discharging bin (10), the other end of the flushing pipe passes through the discharging bin (10) and extends out of the discharging bin (10), and a plurality of water outlet holes are arranged on the flushing pipe (12).
5. The discharging method for improving discharging efficiency of the packed jigging column according to claim 4, wherein the specific steps of S1-4 are as follows: the initial state of the eighth valve (48) is a closed state, when the height of the solid material deposited in the discharging bin (10) reaches the feeding hole of the discharging bin (10), the first valve (40) is closed, the third valve (44) and the second valve (43) are opened, flushing water enters the flushing pipe (12), and meanwhile, the sixth valve (42) and the fifth valve (41) repeat S1-3 actions until water in the pulsation reciprocating generation bin (20) directly performs pulsation reciprocating motion in the discharging bin (10) and the pulsation reciprocating generation bin (20); after the materials in the discharging bin (10) are discharged, the third valve (44) and the second valve (43) are closed, the fourth valve (45) and the seventh valve (47) are opened, and the water in the water storage device (50) is injected into the discharging bin (10) through the water bucket (51).
6. The discharging method for improving discharging efficiency of the packed jigging column according to claim 4, wherein the specific steps of S1-4 are as follows: the initial state of the eighth valve (48) is a closed state, when the height of the solid material deposited in the discharging bin (10) reaches the feeding hole of the discharging bin (10), the first valve (40) and the second valve (43) are closed, the third valve (44), the fourth valve (45), the eighth valve (48) and flushing water enter the flushing pipe (12), after the material in the discharging bin (10) is completely discharged, the third valve (44) is closed, the seventh valve (47) is opened, meanwhile, the sixth valve (42) and the fifth valve (41) repeat S1-3 actions, and water in the pulsation reciprocating generation bin directly performs pulsation reciprocating motion in the filling type jigging column (30) and the pulsation reciprocating generation bin.
7. The discharging method for improving discharging efficiency of the packed jigging column according to claim 5 or 6, wherein the specific steps of S1-5 are as follows: and when the water level in the discharging bin (10) is not higher than the first liquid inlet, closing the seventh valve (47), the fourth valve (45) and the eighth valve (48), opening the first valve (40) and the second valve (43), and repeating the operations from S1-2 to S1-4 until all the solid materials separated by the filling type jigging column (30) are discharged out of the discharging bin (10).
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| CN113751181B (en) | 2023-09-26 |
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