CN117816544B - Self-adaptive controllable grain impurity cleaning device and cleaning method - Google Patents
Self-adaptive controllable grain impurity cleaning device and cleaning method Download PDFInfo
- Publication number
- CN117816544B CN117816544B CN202410240638.6A CN202410240638A CN117816544B CN 117816544 B CN117816544 B CN 117816544B CN 202410240638 A CN202410240638 A CN 202410240638A CN 117816544 B CN117816544 B CN 117816544B
- Authority
- CN
- China
- Prior art keywords
- impurity
- cleaning
- discharge
- screen
- screen surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012535 impurity Substances 0.000 title claims abstract description 156
- 238000004140 cleaning Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000012216 screening Methods 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims description 21
- 238000005303 weighing Methods 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000004062 sedimentation Methods 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 230000001629 suppression Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims 6
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 206010063385 Intellectualisation Diseases 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a self-adaptive controllable grain impurity cleaning device and a cleaning method in the technical field of grain screening. According to the invention, the impurity content of the sieved grains is judged by arranging the lifting machine, the temporary storage hopper and the impurity detection system, and the temporary storage hopper is controlled to switch different discharge ports, so that grains with the impurity content reaching the standard enter the next link, and the grains which are not reaching the standard return to the cleaning sieve to be cleaned again, thereby reducing the labor intensity of workers, and improving the safety and the intellectualization of grain cleaning work.
Description
Technical Field
The invention relates to the technical field of grain screening, in particular to a self-adaptive controllable grain impurity cleaning device and a cleaning method.
Background
Before grain is put into a warehouse, detection and cleaning of impurities in the grain are necessary links, and the grain can be put into the warehouse only after the impurity content reaches a certain standard. At present, impurities are mainly screened through a cleaning screen, and the existing cleaning screens are various in variety, such as CN105880167A, CN105921411A, CN203565369U and the like, and cleaning screens with similar functions are disclosed. The main working process is that firstly, grains are sent into a feed hopper of a screen body by an inclined belt conveyor, the separation of the grains and impurities is realized in the vibration process of the screen body, then the impurities are collected by a collecting hopper, a dust removing fan, an ash gas separating cylinder and the like, and the cleaned grains enter the next link by a conveying mechanism. In the practical application process, the cleaning standard is often not met after one-time cleaning, so that a plurality of cleaning screens and a plurality of inclined belt conveyors are generally required to be used in series, the whole cleaning conveying route is as long as tens of meters, the occupied space is large, the equipment is more, the arrangement, connection and control are more troublesome, grain scattering, noise and dust pollution are easily caused, the labor intensity of workers is high, and even safety accidents are caused.
Disclosure of Invention
In order to overcome the defects in the use process of the existing cleaning sieve, the invention aims to solve the technical problems that: the self-adaptive controllable grain impurity cleaning device and the self-adaptive controllable grain impurity cleaning method are compact in equipment and good in cleaning effect.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a controllable grain impurity cleaning device of self-adaptation, includes the clearance sieve, still includes first lifting machine, temporary storage bucket and impurity detecting system, first lifting machine sets up the discharge end at the clearance sieve, and the pan feeding mouth of first lifting machine bottom is docked with the discharge gate of clearance sieve, temporary storage bucket sets up the discharge end at first lifting machine top, temporary storage bucket top entry dock with the discharge gate of first lifting machine, temporary storage bucket bottom is equipped with two discharge gates to be equipped with the passageway converter and switch two discharge gates, one of them discharge gate links to each other with the feeder hopper of clearance sieve through the feed back chute, and another discharge gate links to each other with next link equipment through the discharge chute, impurity detecting system controls the passageway converter through detecting the impurity condition through the clearance sieve, makes temporary storage bucket switch-on feed back chute or discharge, simultaneously controls the feed speed of the feeder hopper of clearance sieve.
Further, the channel converter comprises a rotating shaft arranged at the connecting part of the two discharge ports and a driver for driving the rotating shaft to rotate, wherein a turning plate is arranged on the rotating shaft, and can shield any one discharge port and simultaneously open the other discharge port when rotating along with the rotating shaft.
Further, the screen frame of clearance sieve includes the screen box, is located the vibrator on the screen box outer wall and is located the screen surface of screen box, the screen surface includes the thick screen surface of upper strata, the fine screen surface of middle level and the collecting plate of lower floor, and thick screen surface and collecting plate incline to the screen frame left and right sides respectively, and the particle diameter of grain being sieved is less than the sieve mesh of thick screen surface, is greater than the sieve mesh of fine screen surface, the side of the discharge end of screen box be equipped with respectively with thick screen surface and the big miscellaneous export and the thin miscellaneous export of the lower butt joint of collecting plate.
Further, the impurity detection system comprises a camera and a weighing device, wherein the camera is positioned at the top of the screen box, the impurity quantity on the rough screen surface is identified through an image, and the weighing device comprises two weighing devices which are respectively positioned below the large impurity outlet and the fine impurity outlet.
Further, the cleaning sieve still includes selection by winnowing sedimentation mechanism and belt feeder, selection by winnowing sedimentation mechanism is including the selection by winnowing machine, dust removal fan and the grey gas separating drum that connect gradually, and the selection by winnowing machine is located the discharge gate department of screen frame, and the bottom exit of grey gas separating drum is equipped with spiral discharge mechanism, the belt feeder is located selection by winnowing sedimentation mechanism below, and the pan feeding end of belt feeder is located the discharge end below of screen frame, the pan feeding mouth of first lifting machine interfaces with the discharge end of belt feeder.
Further, a dust suppression and uniformity hopper capable of controlling the feeding speed is arranged between the feeding hopper and the feeding opening of the screen body, and an air pipe is arranged at the top of the dust suppression and uniformity hopper and is connected with a dust removal fan.
Further, the position close to the cleaning sieve feed hopper is also provided with a second elevator, a top discharge port of the second elevator is in butt joint with the top of the feed hopper, and a material collecting groove is arranged at a bottom feed inlet of the second elevator.
The method for cleaning grains by adopting the self-adaptive controllable grain impurity cleaning device comprises the following steps of:
Screening grains by using a coarse screen surface and a fine screen surface of a screen body, so that large impurities are left on the coarse screen surface, grains are left on the fine screen surface after passing through the coarse screen surface, and fine impurities fall onto a collecting plate through the fine screen surface;
shooting the large impurities on the coarse screen surface by using a camera, identifying the quantity of the large impurities by using an image, and weighing the collected large impurities and the collected fine impurities by using a weighing device;
Step three, judging the initial impurity content of the grains by continuously recording images of large impurities and the weights of the large impurities and the fine impurities in a period of time, and judging whether secondary cleaning is needed or not by combining an algorithm of cleaning and screening impurity removal rate;
step four, if the impurity content of the food in the step three is lower than the set standard, opening a discharge hole communicated with a discharge chute by a channel converter, and enabling the food to enter the next-stage equipment; if the impurity content of the grains is higher than the set standard, the channel converter opens a discharge hole communicated with the feed back chute, and the grains return to the feed hopper for secondary cleaning.
Further, in the third step, the impurity content is judged by selecting any one of the following modes, namely, the first mode is to record the ratio of the total weight of the large impurities and the fine impurities increased in a period of time to the weight of the material passing through the sieving body so as to judge the impurity content; and secondly, directly judging the impurity content by recording the increase of large impurities and fine impurities in unit time.
Further, in the fourth step, the impurity detecting system immediately adjusts the feeding speed of the sieve body after detecting the impurity content of the grains, and after a period of time, the channel converter is controlled to switch the discharge port, and the period of time is the time when the grains leave the sieve body and reach the temporary storage hopper.
The beneficial effects of the application are as follows: the application has the advantages that the elevator and the temporary storage hopper with two discharge holes are arranged at the discharge end of the cleaning sieve, the impurity detection system is arranged on the cleaning sieve to judge the initial impurity content of grains, and the channel converters in the temporary storage hopper are controlled to be connected with different discharge holes, so that grains with the impurity content reaching the standard enter the next link, and the grains which do not reach the standard return to the cleaning sieve to be cleaned for the second time.
Drawings
FIG. 1 is a front elevational view of the structure of the present invention;
FIG. 2 is a side view of the structure of the present invention;
FIG. 3 is a schematic diagram of the channel switch of the present invention;
fig. 4 is a cross-sectional view of a screen of the present invention.
The drawing is marked by a 1-first lifting machine, a 2-temporary storage hopper, a 3-feeding hopper, a 4-screen body, a 5-winnowing sedimentation mechanism, a 6-belt conveyor, a 7-dust suppression and homogenizing hopper, an 8-second lifting machine, a 21-channel converter, a 22-return chute, a 23-discharge chute, a 24-rotating shaft, a 25-turning plate, a 41-screening box, a 42-vibrator, a 43-coarse screening surface, a 44-fine screening surface, a 45-collecting plate, a 46-large impurity outlet, a 47-fine impurity outlet, a 48-camera, a 49-weighing device, a 51-winnowing device, a 52-dust removal fan, a 53-ash separation cylinder, a 54-spiral discharge mechanism, a 71-air pipe and a 81-collecting groove.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
In the present invention, directional terms such as up, down, left, right, front, rear, and azimuth are used to facilitate the description of the relative positional relationship between the members, and are not meant to refer specifically to the absolute position of the relative member or the inter-member relationship, but are used only to explain the relative positional relationship, movement, and the like between the members in a specific posture, and if the specific posture is changed, the directional terms are changed accordingly. In the present invention, the terms "plurality", "a plurality" and the like refer to two or more.
As shown in fig. 1 and 2, the self-adaptive controllable grain impurity cleaning device comprises a cleaning sieve, a first lifting machine 1, a temporary storage hopper 2 and an impurity detection system, wherein the first lifting machine 1 is arranged at the discharge end of the cleaning sieve, a feed inlet at the bottom of the first lifting machine 1 is in butt joint with the discharge outlet of the cleaning sieve, the temporary storage hopper 2 is arranged at the discharge end at the top of the first lifting machine 1, an inlet at the top of the temporary storage hopper 2 is in butt joint with the discharge outlet of the first lifting machine 1, two discharge outlets are arranged at the bottom of the temporary storage hopper 2, a channel converter 21 is arranged to switch the two discharge outlets, one discharge outlet is connected with a feed hopper 3 of the cleaning sieve through a return chute 22, the other discharge outlet is connected with next link equipment through a discharge chute 23, and the impurity detection system controls a channel converter 21 by detecting impurity conditions passing through the cleaning sieve, so that the temporary storage hopper 2 is connected with the return chute 22 or the discharge chute 23, and simultaneously controls the feed speed of the feed hopper 3 of the cleaning sieve.
The application is mainly improved in that a first lifting machine 1 and a temporary storage hopper 2 with two discharge holes are arranged at the discharge end of the cleaning sieve, an impurity detection system is arranged on the cleaning sieve to judge the initial impurity content of grains, and a channel converter 21 in the temporary storage hopper 2 is controlled to be communicated with different discharge holes, so that grains with the impurity content reaching the standard enter the next link through a discharge chute 23, and grains with the impurity content not reaching the standard return to the cleaning sieve through a return chute 22 for secondary cleaning. Compared with the existing series-type multiple devices, the scheme of the application has more compact structure, and the arrangement and control of the devices are more convenient because the number of the devices is reduced, and simultaneously, the noise and dust pollution and the labor intensity of workers can be reduced, and the safety and the intellectualization of grain cleaning work are improved.
In particular, how to switch the discharge ports of the temporary storage hopper by using the channel converter 21, as shown in fig. 3, the preferred scheme of the invention is that the channel converter 21 comprises a rotating shaft 24 arranged at the connection part of two discharge ports and a driver for driving the rotating shaft 24 to rotate, wherein a turning plate 25 is arranged on the rotating shaft 24, and when the turning plate 25 rotates along with the rotating shaft 24, any one of the discharge ports can be blocked while the other discharge port is opened. The driver is not shown in the drawing, and a motor or an electromagnet can be used to drive the rotating shaft to rotate. When the turning plate 25 rotates to the left and contacts the inner wall of the temporary storage hopper 2, a discharge hole communicated with the return chute 22 is closed, and a discharge hole communicated with the discharge chute 23 at the other side is opened; conversely, when the flap 25 is turned to the right and contacts the inner wall of the temporary storage hopper 2, the discharge port communicating with the discharge chute 23 is closed, and the discharge port communicating with the return chute 22 on the other side is opened.
For the specific structure of the screen body 4, as shown in fig. 4, the screen body 4 of the cleaning screen comprises a screen box 41, a vibrator 42 positioned on the outer wall of the screen box 41 and a screen surface positioned in the screen box 41, wherein the screen surface comprises an upper coarse screen surface 43, a middle fine screen surface 44 and a lower collecting plate 45, the coarse screen surface 43 and the collecting plate 45 are respectively inclined towards the left side and the right side of the screen body 4, the grain size of the screened grain is smaller than the mesh of the coarse screen surface 43 and larger than the mesh of the fine screen surface 44, and a large impurity outlet 46 and a fine impurity outlet 47 which are respectively in butt joint with the lower ends of the coarse screen surface 43 and the collecting plate 45 are arranged on the side surface of the discharge end of the screen box 41. The screening process is as follows: after the grains enter the screen body 4, large impurities with larger volume can be left on the coarse screen surface 43, grains and fine impurities with smaller volume can fall onto the fine screen surface 44 through the screen holes of the coarse screen surface 43, and meanwhile, the fine impurities can fall onto the collecting plate 45 through the screen holes of the fine screen surface 44. Because the coarse screening surface 43 and the collecting plate 45 are inclined to the left and right sides of the screen body 4, respectively, and the screen body 4 is also inclined from the feed end to the discharge end, the large and fine impurities are gathered and discharged to the two sides of the discharge end of the screen box 41 under the action of the vibrator 42, and separated from the grains in the middle.
The impurity detection system of the application is designed according to the structure and screening mode of the screen body 4, and mainly comprises a camera 48 and a weighing device 49, as shown in fig. 4, the camera 48 is positioned at the top of the screen box 41, the impurity quantity positioned on the coarse screen surface 43 is identified through images, and the weighing device 49 comprises two weighing devices, which are respectively positioned below the large impurity outlet 46 and the fine impurity outlet 47. The camera 48 may be provided in a position close to the discharge end of the sieve body 4, or in a plurality along the grain direction. Since the grains fall onto the fine screen surface 44 immediately after reaching the coarse screen surface 43, almost all of the impurities left on the coarse screen surface 43 are impurities, and therefore the pixel area formed by the outline of the impurities can be easily identified by using the image recognition technique, thereby judging the amount of the impurities. The weighing machine 49 is provided with a time-counting recording function for recording the weight of the impurity increase in each time period according to the set continuous time period.
Specifically, in the process of adopting the self-adaptive controllable grain impurity cleaning device to clean impurities, the method mainly comprises the following steps of:
Firstly, screening grains by using a coarse screen surface 43 and a fine screen surface 44 of a screen body 4, so that large impurities are left on the coarse screen surface 43, grains are left on the fine screen surface 44 after passing through the coarse screen surface 43, and fine impurities fall onto a collecting plate 45 through the fine screen surface 44;
Shooting the large impurities on the coarse screen surface 43 by using a camera 48, identifying the quantity of the large impurities through an image, and weighing the collected large impurities and the collected fine impurities by using a weighing device 49;
Step three, judging the initial impurity content of the grains by continuously recording images of large impurities and the weights of the large impurities and the fine impurities within a period of time;
Step four, if the initial impurity content of the food in the step three is lower than the set standard, the channel converter 21 opens a discharge hole communicated with the discharge chute 23, and the food enters the next-stage equipment; if the impurity content of the grains is higher than the set standard, the channel converter 21 opens a discharge hole communicated with the return chute 22, and the grains return to the feed hopper 3 for secondary cleaning.
Further, in the third step, any one of the following modes is selected to judge the impurity content, and the first mode is to record the ratio of the total weight of the large impurity and the fine impurity increased in a period of time to the weight of the material passing through the sieving body 4 and the image of the large impurity to judge the initial impurity content of the grain; and secondly, judging the initial impurity content of the grains directly by recording the increase of the large impurities and the fine impurities and the images of the large impurities in unit time. The first mode needs to record the weight of the grain, can estimate according to the type of the grain, the grain flow and the elapsed time, and can calculate the weight of the grain by setting a weight sensor to record the impact force and the action time when the grain enters the screen body or leaves the screen body. The second mode needs to train the system in a large model in advance, tests are conducted on grains with different impurity contents and different feeding speeds according to different types of grains, the weight of the impurity increase in the unit time corresponding to the qualified impurity content of the grains is recorded and used as a threshold value, in the actual cleaning process, the weight of the impurity increase in the unit time exceeds the threshold value, the initial impurity content of the grains is higher, the grains need to be cleaned again, and otherwise, the impurity content is qualified.
In addition, since a certain time is required from the sieve body 4 to the temporary storage hopper 2, in the fourth step, the impurity detection system immediately adjusts the feeding speed of the sieve body 4 after detecting the impurity content of the grain, and controls the channel converter 21 to switch the discharge port after a period of time, which is the time from leaving the sieve body 4 to reach the temporary storage hopper 2. For controlling the feeding speed, when the impurity content of the grain is very low, the feeding speed can be increased, and the cleaning efficiency is improved; when the impurity content is higher, the feeding speed can be reduced, the grain passing through the sieving body 4 in unit time is less, and the cleaning effect is better. Therefore, when the impurity detecting system recognizes that the impurity content is higher, the feeding speed is reduced first, and the grains enter the temporary storage hopper and then return to the feed hopper through the return chute 22, because the feeding speed is reduced at this time, the screening effect is good, and after the impurity detecting system recognizes that the impurity content is qualified, the speed can be properly increased, and meanwhile, the grains between the screen body 4 and the temporary storage hopper 2 are not completely qualified, so that a period of time is reserved, and the like, after the grains enter the return chute 22, the channel converter 21 is switched. In the process, after multiple times of adjustment of the system, a proper feeding speed is finally obtained, and according to the feeding speed, the cleaning requirement can be met by cleaning for one time, so that the self-adaptive controllable grain impurity cleaning is realized.
In order to make the overall scheme more complete, the invention also provides the following preferable schemes:
in order to reduce dust pollution, be convenient for send into first lifting machine with grain, the clearance sieve still includes selection by winnowing sedimentation mechanism 5 and belt feeder 6, selection by winnowing sedimentation mechanism 5 is including the selection by winnowing machine 51, dust removal fan 52 and the grey gas separating drum 53 that connect gradually, and selection by winnowing machine 51 is located the discharge gate department of screen frame 4, and the bottom exit of grey gas separating drum 53 is equipped with spiral discharge mechanism 54, belt feeder 6 is located selection by winnowing sedimentation mechanism 5 below, and the pan feeding end of belt feeder 6 is located the discharge end below of screen frame 4, the pan feeding mouth of first lifting machine 1 is docked with the discharge end of belt feeder 6.
For better control of the feeding speed, grains are ensured to uniformly enter the screen body 4, a dust suppression and homogenizing hopper 7 capable of controlling the feeding speed is arranged between the feeding hopper 3 and the feeding port of the screen body 4, and an air pipe 71 is arranged at the top of the dust suppression and homogenizing hopper 7 and is connected with a dust removal fan 52 on the cleaning screen. During selection, the dust suppression and homogenizing hopper 7 is required to have the functions of controlling dust raising, homogenizing and controlling feeding speed at the same time, so that the grain feeding speed is better controlled.
In addition, still be equipped with second lifting machine 8 in the position of the feeder hopper 3 that is close to the clearance sieve, the top discharge gate of second lifting machine 8 is docked with feeder hopper 3 top, and the bottom pan feeding mouth department of second lifting machine 8 is equipped with collection silo 81. The collection trough 81 is used for receiving grains unloaded from a truck, the second lifting machine 8 is used for conveying the grains into the feed hopper 3, and compared with an inclined belt conveyor, the collection trough is smaller in occupied space and can be matched with the dust suppression and equalization hopper 7 better to control the grain feeding speed.
Claims (7)
1. Self-adaptation controllable grain impurity cleaning device, including the clearance sieve, its characterized in that: the impurity detection system is characterized by further comprising a first lifting machine (1), a temporary storage hopper (2) and an impurity detection system, wherein the first lifting machine (1) is arranged at the discharge end of the cleaning screen, a feed inlet at the bottom of the first lifting machine (1) is in butt joint with the discharge outlet of the cleaning screen, the temporary storage hopper (2) is arranged at the discharge end of the top of the first lifting machine (1), the inlet at the top of the temporary storage hopper (2) is in butt joint with the discharge outlet of the first lifting machine (1), two discharge outlets are arranged at the bottom of the temporary storage hopper (2) and are provided with a channel converter (21) for switching the two discharge outlets, one of the two discharge outlets is connected with the feed hopper (3) of the cleaning screen through a return chute (22), the other discharge outlet is connected with next link equipment through a discharge chute (23), and the impurity detection system controls the channel converter (21) through detecting the impurity condition passing through the cleaning screen, so that the temporary storage hopper (2) is connected with the return chute (22) or the discharge chute (23), and meanwhile the feed speed of the feed hopper (3) of the cleaning screen is controlled; when the impurity detection system recognizes that the impurity content is higher, the feeding speed is reduced firstly, grains enter the temporary storage hopper and then return to the feeding hopper (3) through the feed back chute (22), the screening effect is good after the feeding speed is reduced, the feeding speed is improved after the impurity detection system recognizes that the impurity content is qualified, and a proper feeding speed is finally obtained after the impurity detection system is regulated for a plurality of times, so that the cleaning requirement can be met only by cleaning once according to the feeding speed;
The screen body (4) of the cleaning screen comprises a screen box (41), a vibrator (42) positioned on the outer wall of the screen box (41) and a screen surface positioned in the screen box (41), wherein the screen surface comprises an upper coarse screen surface (43), a middle fine screen surface (44) and a lower collecting plate (45), the coarse screen surface (43) and the collecting plate (45) are respectively inclined towards the left side and the right side of the screen body (4), the grain size of the screened grain is smaller than the mesh of the coarse screen surface (43) and larger than the mesh of the fine screen surface (44), and a large impurity outlet (46) and a fine impurity outlet (47) which are respectively in butt joint with the lower ends of the coarse screen surface (43) and the collecting plate (45) are arranged on the side face of the discharge end of the screen box (41); the impurity detection system comprises a camera (48) and a weighing device (49), wherein the camera (48) is positioned at the top of the screen box (41), the impurity quantity positioned on the coarse screen surface (43) is identified through an image, and the weighing device (49) comprises two weighing devices which are respectively positioned below the large impurity outlet (46) and the fine impurity outlet (47);
The cleaning process comprises the following steps:
Firstly, screening grains by using a coarse screen surface (43) and a fine screen surface (44) of a screen body (4), so that large impurities are left on the coarse screen surface (43), grains are left on the fine screen surface (44) after passing through the coarse screen surface (43), and fine impurities fall onto a collecting plate (45) through the fine screen surface (44);
Shooting the large impurities on the coarse screen surface (43) by using a camera (48), identifying the quantity of the large impurities through an image, and weighing the collected large impurities and the collected fine impurities by using a weighing device (49);
Step three, judging the initial impurity content of the grains by continuously recording images of large impurities and the weights of the large impurities and the fine impurities in a period of time, and judging whether secondary cleaning is needed or not by combining an algorithm of cleaning and screening impurity removal rate;
Step four, if the impurity content of the food in the step three is lower than a certain standard, the channel converter (21) opens a discharge hole communicated with the discharge chute (23), and the food enters the next-stage equipment; if the impurity content of the grains is higher than a certain standard, the channel converter (21) opens a discharge hole communicated with the feed back chute (22), and the grains return to the feed hopper (3) for secondary cleaning.
2. The adaptive controllable grain impurity cleaning device of claim 1, wherein: the channel converter (21) comprises a rotating shaft (24) arranged at the connecting part of the two discharge holes and a driver for driving the rotating shaft (24) to rotate, wherein a turning plate (25) is arranged on the rotating shaft (24), and when the turning plate (25) rotates along with the rotating shaft (24), any one discharge hole can be blocked, and the other discharge hole can be opened at the same time.
3. The adaptive controllable grain impurity cleaning device of claim 1, wherein: the cleaning sieve further comprises a winnowing sedimentation mechanism (5) and a belt conveyor (6), wherein the winnowing sedimentation mechanism (5) comprises a winnowing device (51), a dust removal fan (52) and an ash gas separation barrel (53) which are sequentially connected, the winnowing device (51) is located at a discharge port of the sieve body (4), a spiral discharge mechanism (54) is arranged at a bottom outlet of the ash gas separation barrel (53), the belt conveyor (6) is located below the winnowing sedimentation mechanism (5), a feed end of the belt conveyor (6) is located below a discharge end of the sieve body (4), and a feed port of the first elevator (1) is in butt joint with the discharge end of the belt conveyor (6).
4. The adaptive controllable grain impurity cleaning device of claim 1, wherein: the dust suppression and homogenizing hopper (7) capable of controlling the feeding speed is arranged between the feeding hopper (3) and the feeding port of the screen body (4), and an air pipe (71) is arranged at the top of the dust suppression and homogenizing hopper (7) and is connected with a dust removal fan (52) on the cleaning screen.
5. The adaptive controllable grain impurity cleaning device of claim 4, wherein: the position of feeder hopper (3) near the clearance sieve still is equipped with second lifting machine (8), the top discharge gate of second lifting machine (8) is docked with feeder hopper (3) top, and the bottom pan feeding mouth department of second lifting machine (8) is equipped with collecting groove (81).
6. The adaptive controllable grain impurity cleaning device of claim 1, wherein: in the third step, the ratio of the total weight of the large impurities and the fine impurities to the weight of the material passing through the sieving body in a period of time and the image of the large impurities can be recorded to judge the impurity content; or directly judging the impurity content by recording the increase amount of the large impurity and the fine impurity in unit time and the image of the large impurity.
7. The adaptive controllable grain impurity cleaning device of claim 1, wherein: in the fourth step, the impurity detection system immediately adjusts the feeding speed of the sieve body (4) after detecting the initial impurity content of the grains, and controls the channel converter (21) to switch the discharge port after a period of time, wherein the period of time is the time when the grains leave the sieve body (4) to reach the temporary storage hopper (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410240638.6A CN117816544B (en) | 2024-03-04 | 2024-03-04 | Self-adaptive controllable grain impurity cleaning device and cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410240638.6A CN117816544B (en) | 2024-03-04 | 2024-03-04 | Self-adaptive controllable grain impurity cleaning device and cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117816544A CN117816544A (en) | 2024-04-05 |
| CN117816544B true CN117816544B (en) | 2024-05-31 |
Family
ID=90519222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410240638.6A Active CN117816544B (en) | 2024-03-04 | 2024-03-04 | Self-adaptive controllable grain impurity cleaning device and cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117816544B (en) |
Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003166956A (en) * | 2001-11-30 | 2003-06-13 | Sumitomo Metal Mining Co Ltd | Soil-screening apparatus and method |
| CN201124165Y (en) * | 2007-11-14 | 2008-10-01 | 张剑明 | Multifunctional duplex seed-selecting machine |
| CN203622652U (en) * | 2013-11-13 | 2014-06-04 | 徐州徐工施维英机械有限公司 | Aggregate reservation bin structure and dry-mixed mortar stirring station |
| CN203921732U (en) * | 2014-06-13 | 2014-11-05 | 东莞市奥能工程塑料有限公司 | A kind of Matter Transfer homogenizer |
| CN104190521A (en) * | 2014-07-10 | 2014-12-10 | 浙江瑞泰耐火材料科技有限公司 | A castable screening machine |
| CN205308549U (en) * | 2016-01-14 | 2016-06-15 | 林培先 | Rubbing crusher crushing fineness real -time detection device |
| CN208245194U (en) * | 2018-02-06 | 2018-12-18 | 杨天梅 | A kind of seed screening machine |
| CN109225867A (en) * | 2018-09-12 | 2019-01-18 | 中储粮成都储藏研究院有限公司 | A kind of combination circulating winnowing cleaning technology and device |
| CN208643198U (en) * | 2018-07-27 | 2019-03-26 | 爱捷精密设备(苏州)有限公司 | A kind of plastic grain Cycle Screening device |
| CN209160134U (en) * | 2018-11-30 | 2019-07-26 | 云南云维飞虎化工有限公司 | A kind of production of carbon black packaging system |
| CN110404688A (en) * | 2019-07-12 | 2019-11-05 | 塔里木大学 | A kind of machine pick cotton information processing method miscellaneous clearly and device merging electrostatic and wind-force |
| CN110404771A (en) * | 2019-05-31 | 2019-11-05 | 安徽神健粮食机械设备有限公司 | Grain machinery impurity-removing method in batches based on the coupling of more bodies |
| CN210882834U (en) * | 2019-08-12 | 2020-06-30 | 华润水泥(连江)有限公司 | High-low standard cement switching and packaging system |
| RU2732941C1 (en) * | 2020-05-15 | 2020-09-24 | Федеральное государственное автономное образовательное учреждение высшего образования "Северо-Восточный федеральный университет имени М.К.Аммосова" | Grain-cleaning screw conveyor |
| CN212328572U (en) * | 2020-04-10 | 2021-01-12 | 江苏傲农生物科技有限公司 | Smash wearing sieve monitoring devices of in-process automatic sampling |
| CN212831644U (en) * | 2020-07-09 | 2021-03-30 | 陕西石羊农业科技股份有限公司 | Device for reducing powder content of granulated feed |
| CN114618607A (en) * | 2022-02-21 | 2022-06-14 | 曹县中星高新机械制造有限公司 | Quinoa processing complete equipment |
| CN216965344U (en) * | 2022-03-31 | 2022-07-15 | 甘肃纯洁高原农业科技有限公司 | Weight machine is used in chenopodium quinoa screening of sustainable material that connects |
| CN114849889A (en) * | 2021-02-03 | 2022-08-05 | 中国科学院沈阳自动化研究所 | Manual and automatic control system for fused magnesia crushing and screening production link |
| CN114887730A (en) * | 2022-06-11 | 2022-08-12 | 马东 | Crushing and screening device for road and bridge construction |
| CN217431902U (en) * | 2022-03-22 | 2022-09-16 | 牧原食品股份有限公司 | Feed crushing system |
| CN116298143A (en) * | 2023-03-07 | 2023-06-23 | 济南中意维尔科技有限公司 | Resource sharing grain inspection platform technology |
| CN116773264A (en) * | 2023-08-08 | 2023-09-19 | 江苏闪码光机电科技有限公司 | Bulk grain part sample sorting, weighing and sample reserving device and method |
| CN117589633A (en) * | 2024-01-19 | 2024-02-23 | 中储粮成都储藏研究院有限公司 | Grain impurity detection device and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8821229B2 (en) * | 2012-12-06 | 2014-09-02 | Cnh Industrial America Llc | Grain cleaning system for an agricultural combine |
-
2024
- 2024-03-04 CN CN202410240638.6A patent/CN117816544B/en active Active
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003166956A (en) * | 2001-11-30 | 2003-06-13 | Sumitomo Metal Mining Co Ltd | Soil-screening apparatus and method |
| CN201124165Y (en) * | 2007-11-14 | 2008-10-01 | 张剑明 | Multifunctional duplex seed-selecting machine |
| CN203622652U (en) * | 2013-11-13 | 2014-06-04 | 徐州徐工施维英机械有限公司 | Aggregate reservation bin structure and dry-mixed mortar stirring station |
| CN203921732U (en) * | 2014-06-13 | 2014-11-05 | 东莞市奥能工程塑料有限公司 | A kind of Matter Transfer homogenizer |
| CN104190521A (en) * | 2014-07-10 | 2014-12-10 | 浙江瑞泰耐火材料科技有限公司 | A castable screening machine |
| CN205308549U (en) * | 2016-01-14 | 2016-06-15 | 林培先 | Rubbing crusher crushing fineness real -time detection device |
| CN208245194U (en) * | 2018-02-06 | 2018-12-18 | 杨天梅 | A kind of seed screening machine |
| CN208643198U (en) * | 2018-07-27 | 2019-03-26 | 爱捷精密设备(苏州)有限公司 | A kind of plastic grain Cycle Screening device |
| CN109225867A (en) * | 2018-09-12 | 2019-01-18 | 中储粮成都储藏研究院有限公司 | A kind of combination circulating winnowing cleaning technology and device |
| CN209160134U (en) * | 2018-11-30 | 2019-07-26 | 云南云维飞虎化工有限公司 | A kind of production of carbon black packaging system |
| CN110404771A (en) * | 2019-05-31 | 2019-11-05 | 安徽神健粮食机械设备有限公司 | Grain machinery impurity-removing method in batches based on the coupling of more bodies |
| CN110404688A (en) * | 2019-07-12 | 2019-11-05 | 塔里木大学 | A kind of machine pick cotton information processing method miscellaneous clearly and device merging electrostatic and wind-force |
| CN210882834U (en) * | 2019-08-12 | 2020-06-30 | 华润水泥(连江)有限公司 | High-low standard cement switching and packaging system |
| CN212328572U (en) * | 2020-04-10 | 2021-01-12 | 江苏傲农生物科技有限公司 | Smash wearing sieve monitoring devices of in-process automatic sampling |
| RU2732941C1 (en) * | 2020-05-15 | 2020-09-24 | Федеральное государственное автономное образовательное учреждение высшего образования "Северо-Восточный федеральный университет имени М.К.Аммосова" | Grain-cleaning screw conveyor |
| CN212831644U (en) * | 2020-07-09 | 2021-03-30 | 陕西石羊农业科技股份有限公司 | Device for reducing powder content of granulated feed |
| CN114849889A (en) * | 2021-02-03 | 2022-08-05 | 中国科学院沈阳自动化研究所 | Manual and automatic control system for fused magnesia crushing and screening production link |
| CN114618607A (en) * | 2022-02-21 | 2022-06-14 | 曹县中星高新机械制造有限公司 | Quinoa processing complete equipment |
| CN217431902U (en) * | 2022-03-22 | 2022-09-16 | 牧原食品股份有限公司 | Feed crushing system |
| CN216965344U (en) * | 2022-03-31 | 2022-07-15 | 甘肃纯洁高原农业科技有限公司 | Weight machine is used in chenopodium quinoa screening of sustainable material that connects |
| CN114887730A (en) * | 2022-06-11 | 2022-08-12 | 马东 | Crushing and screening device for road and bridge construction |
| CN116298143A (en) * | 2023-03-07 | 2023-06-23 | 济南中意维尔科技有限公司 | Resource sharing grain inspection platform technology |
| CN116773264A (en) * | 2023-08-08 | 2023-09-19 | 江苏闪码光机电科技有限公司 | Bulk grain part sample sorting, weighing and sample reserving device and method |
| CN117589633A (en) * | 2024-01-19 | 2024-02-23 | 中储粮成都储藏研究院有限公司 | Grain impurity detection device and method |
Non-Patent Citations (2)
| Title |
|---|
| 振动清理筛的调整方法探讨;屈小会;;粮食流通技术;20070815(第04期);第15-17页 * |
| 深圳市下坪固体废弃物填埋场.《环卫机械设备合理选择与经济使用》.中国建筑工业出版社,1999,(第1版),第86-87页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117816544A (en) | 2024-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106964568A (en) | The Double-skin belt granular material color selector of final election can be carried out | |
| CN117816544B (en) | Self-adaptive controllable grain impurity cleaning device and cleaning method | |
| CN200977509Y (en) | Winnowing cleaning sieve with vertical air suction duct | |
| JP6052287B2 (en) | Color sorter | |
| CN106000882B (en) | Multichannel multi-layer vibration descaling machine | |
| KR101676167B1 (en) | A bean sorting device having multiplr cleaning means | |
| CN218691584U (en) | Grain autofilter divides appearance to detect machine | |
| CN117842727B (en) | Grain cleaning and warehousing integrated equipment for horizontal warehouse | |
| CN207170258U (en) | Automatically mould impurity elimination particle blender is removed | |
| CN215141863U (en) | Vibration screening device | |
| CN211191012U (en) | Grain screening device | |
| CN105478340A (en) | Efficient conveyer belt type mesh belt precleaner | |
| CN107442427A (en) | Automatically mould impurity elimination particle blender is removed | |
| CN117902338B (en) | Automatic control system for grain feeding of horizontal warehouse | |
| CN209935195U (en) | Wheat benevolence production dust collector | |
| CN206824189U (en) | A kind of duplex specific gravity classificatory | |
| CN219187726U (en) | Dust-free rice processing classification equipment | |
| CN210304566U (en) | Silo feeding system | |
| CN214416914U (en) | Rice classifying screen | |
| JP2750750B2 (en) | Hulling equipment | |
| JP2886038B2 (en) | Threshing equipment | |
| CN220697495U (en) | Zinc sulfide concentrate lump material separating device | |
| JP2000042495A (en) | Grain sorting and weighing machine | |
| CN211767772U (en) | Blast furnace material bin | |
| CN112387593A (en) | Primary selector of dual screening |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |