CN113307052B - Accurate discharging method for particle material storage side wall - Google Patents
Accurate discharging method for particle material storage side wall Download PDFInfo
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- CN113307052B CN113307052B CN202110621360.3A CN202110621360A CN113307052B CN 113307052 B CN113307052 B CN 113307052B CN 202110621360 A CN202110621360 A CN 202110621360A CN 113307052 B CN113307052 B CN 113307052B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/04—Loading land vehicles
- B65G67/06—Feeding articles or materials from bunkers or tunnels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G11/00—Chutes
- B65G11/02—Chutes of straight form
- B65G11/026—Chutes of straight form for bulk
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
Abstract
The invention belongs to the technical field of storage, and discloses a method for accurately discharging a particle material storage side wall, which comprises the following steps: step 1: weighing the empty wagon to obtain the empty wagon weight Wm1(ii) a Step 2: the empty car reaches the position of the storage bin, the side wall of the storage bin is provided with a side wall discharging unit, and a discharging volume metering module is arranged in the side wall discharging unit; the side wall discharging unit discharges materials into a hopper of an empty car to obtain a discharging volume VmAnd theoretical discharge weight Wm3Predicting the weight W of the discharged materialm4(ii) a And step 3: weighing the vehicle to obtain the full load Wm2(ii) a And 4, step 4: calculating the compensation coefficient beta of the emptyingm＝(Wm3‑Wm2+Wm1)/Wm3*100％；Wm3＝Vm*ρ；Wm4＝Wm3*(1+βm‑1) (ii) a Rho is the density of the material; and 5: when the next vehicle is loaded, the compensation coefficient beta is adoptedmAnd calculating the emptying volume. The discharge error rate of the method can be controlled within 10 per thousand.
Description
Technical Field
The invention belongs to the technical field of storage, and particularly relates to a method for accurately discharging a particle material storage side wall.
Background
Patent ZL201920911576.1(D1) that the applicant proposed discloses a granule material flow intelligent control system, including the buffer memory elephant trunk that the slope was placed, the funnel that is used for collecting the input material is installed to the upper end of buffer memory elephant trunk, and the lower extreme of buffer memory elephant trunk is installed and is used for the gate mechanism of switching buffer memory elephant trunk, is provided with a position sensor who is used for detecting the material volume in the buffer memory elephant trunk at least, and position sensor is connected with the gate. Through being provided with the buffer storage elephant trunk, make the material get into the first material stock in buffer storage elephant trunk before low reaches transportation equipment such as lifting machine, eliminate material impact energy, reduce the raise dust, reduce the material breakage rate and avoid receiving the impact damage in the lifting machine to the width of opening the door of control gate mechanism makes the ejection of compact even steady, improves the security, the stability and the work efficiency of low reaches equipment.
ZL201921414719.4(D2) discloses a screw loading metering mechanism, which comprises a metering device, a metering device and a metering device, wherein the metering device comprises a cylindrical barrel and a screw assembly arranged in the barrel, the screw assembly comprises a screw penetrating along the axial direction of the barrel and a blade wound on the screw along the axial direction of the screw, and the outer edge of the blade is in sealing fit with the inner wall of the barrel; discharge apparatus, including the hopper that the upper end is connected through the discharge gate of material pipe and barrel, the longitudinal section of hopper is big-end-up's toper to the bin outlet has been seted up to the lower extreme of hopper, installs the tripper of liftable in the hopper, and the tripper passes through the slide bar subassembly to be installed on the hopper, and the tripper is the back taper, and the terminal surface is provided with the chamfer that is used for increasing the distance between tripper and the lateral wall under the tripper. The metering device is used for separating and metering the grains, so that the flow in unit time is controlled, the accurate control of grain discharge is realized, the grains are discharged by combining the discharging device, the generation of dust during the falling of the grains is reduced, and the environmental pollution is avoided.
CN201711057751.7(D3) discloses a press down dirt hopper, including the upper end uncovered, the lower extreme is provided with the conical bucket body of discharge gate, the bucket body includes inner wall and outer wall, is provided with the air flue between inner wall and the outer wall, and bucket body upper end is uncovered to be provided with the outer wall connection, to the inside dust board that extends of bucket body, forms the income gas port between dust board and the inner wall, and the bucket body is inside to be provided with to be used for the tripper on the bulk cargo direction inner wall. Inside and the air flue formation atmospheric pressure of bucket body are poor, and the dust of raising upwards diffuses outward to get into the air flue under the guide of dust board, play the effect that restraines bucket body raise dust outwards diffusion, protected the operation environment, avoid endangering human health.
D1, performing feeding measurement by feeding in sections; d2, adjusting the discharge cross-sectional area by adjusting the length of the sliding rod, and adjusting the discharge speed; d3 is a further optimization of the dust suppression hopper of D2.
In practice, D2 has been found to achieve an error rate of 2%, and it is desirable to achieve an error rate within 10% or even 8%. This is of practical significance in applications where truck drivers wish to be as full as possible, even at a 2% error rate, and require re-filling until their desired weight is reached so that the truck is returned once again. One return is equivalent to adding one complete emptying operation, so that the all-weather loading efficiency is obviously lowered, vehicles in the yard cannot form circulation, and the traffic in the yard is also obviously influenced.
Therefore, the technical problem that the present case was solved first is: how to control the load error rate within 10 per thousand or even within 8 per thousand.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention aims to provide the method for accurately discharging the side wall of the granular material storage, and the discharge error rate of the method can be controlled within 10 per thousand.
The specific scheme is as follows:
a method for accurately discharging a particle material storage side wall comprises the following steps:
step 1: weighing the empty wagon to obtain the empty wagon weight Wm1；
Step 2: the empty car reaches the position of the storage bin, the side wall of the storage bin is provided with a side wall discharging unit, and a discharging volume metering module is arranged in the side wall discharging unit; the side wall discharging unit discharges materials into a hopper of an empty car to obtain a discharging volume VmAnd theoretical discharge weight Wm3Predicting the weight W of the discharged materialm4；
And step 3: weighing the vehicle to obtain the full load Wm2；
And 4, step 4: calculating the compensation coefficient beta of the emptyingm＝(Wm3-Wm2+Wm1)*100％/Wm3；Wm3＝Vm*ρ；Wm4＝Wm3*(1-βm-1)；
And 5: when the next vehicle is loaded, the compensation coefficient beta is adoptedmAnd calculating the emptying volume.
In the above method for accurately discharging the storage sidewall of the granular material, in the step 4, beta is recordedmAnd the height H of the material in the silo at the momentmTo obtain HmAnd betamThe corresponding relationship of (a);
when the error X of the previous vehicle in loading exceeds a preset value, the compensation coefficient beta of the materials in the binmReference to H of the last bin of materialmAnd betamThe corresponding relationship of (a);
the error X ═ Wm4-Wm2+Wm1)*100％/(Wm2-Wm1)；
The preset value is 8-10 per mill.
In the above method for accurately discharging the storage side wall of the granular material, the side wall discharging unit comprises a chute connected below the side wall of the storage bin and a hopper connected to the tail end of the chute; the lower part of the hopper is a tapered open part;
a liftable distributing block is arranged in the opening part; the distributing block can rotate along with the flowing of the material;
a first flow sensor is arranged in the chute.
In the above method for accurately discharging the side wall of the granular material storage, the open part is in a hollow round table shape with a thick upper part and a thin lower part; the distributing block is a double-cone-shaped body; the surface of the round table at the upper part of the distributing block is provided with a spiral raised line extending from top to bottom; the round table of the lower part of the distributing block is matched with the opening part in shape.
In the above method for accurately discharging the granular material from the storage side wall, a second flow sensor is arranged in the opening part.
In the above method for accurately discharging the side wall of the granular material storage, the hopper is internally provided with the lifting rod, the hopper is externally provided with the driving module for driving the lifting rod to lift, and the tail end of the lifting rod is connected with the circular table on the upper part of the distributing block through the bearing.
The method for accurately discharging the granular material storage side wall further comprises a deformation pipe, wherein the chute comprises an inclined chute and a straight chute, and the deformation pipe, the inclined chute, the straight chute and the hopper are sequentially connected; the one end that the feed bin was connected to the deformation pipe is the butt, and the one end of connecting oblique elephant trunk is the thin end.
In the method for accurately discharging the granular material from the storage side wall, a pneumatic gate is arranged between the deformation pipe and the inclined chute;
the straight chute and the storage bin are fixedly connected through a tripod.
In the above method for accurately discharging the storage side wall of the granular material, when the discharge volume is (V-y) m3The minimum cross-sectional area enclosed by the distributor block and the hopper is 0.4-0.7 times of the area of the open side of the open part, and the data measured by the first flow sensor is V1；
When the discharge volume reaches (V-y) m3Then, the minimum cross-sectional area enclosed by the distributor block and the hopper is 0.1-0.4 times of the area of the distributor block and the open side of the open part, the second flow sensor starts counting, and the measured data is V2；
V＝V1+V2；y＝0.1-2m3。
In the method for accurately discharging the side wall of the granular material storage, before weighing, the empty vehicle issues an FRID card to the empty vehicle, and the FRID card is bound with the vehicle license plate;
the FRID card records a bin position, a cargo number, the weight of cargo to be purchased and the weight of the cargo over pound.
Compared with the prior art, the invention has the beneficial effects that:
the discharging precision of the invention is mainly related to two factors:
firstly, under the condition of the same material type and similar material property, the height of the material in the bin, the tightness of the material in the chute and the discharge metering error are closely related;
secondly, the optimization of the emptying flow and the structure of the side wall emptying unit is closely related to the emptying precision.
Therefore, through improvement of the emptying algorithm and an iterative algorithm, the emptying precision can be controlled to be about 10 per thousand; further improves the structure of the chute and the hopper, particularly adjusts the position of the distributing block according to different blanking schedules, realizes the rotation of the distributing block through structural optimization under the condition of small flow rate to prevent the blocking of the material, form a cavity, improve the metering precision of the second flow sensor and control the discharging precision to be less than 6 per thousand.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the hopper of the present invention;
FIG. 3 is a schematic view of the structure of the hopper of the present invention;
FIG. 4 is a control flow diagram of the present invention;
fig. 5 is a block diagram of the architecture of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
Referring to fig. 1-3, a method for accurately discharging the stored side wall of a particulate material bin 1 comprises the following steps:
step 1: weighing the empty wagon to obtain the empty wagon weight Wm1；
Step 2: the empty car reaches the position of the storage bin, the side wall of the storage bin is provided with a side wall discharging unit, and a discharging volume metering module is arranged in the side wall discharging unit; the side wall discharging unit discharges materials into a hopper of an empty car to obtain a discharging volume VmAnd theoretical discharge weight Wm3Predicting the weight W of the discharged materialm4(ii) a Recording betamAnd the height H of the material in the silo at the momentmTo obtain HmAnd betamThe corresponding relationship of (a);
and step 3: weighing the vehicle to obtain the full load Wm2；
And 4, step 4: calculating the compensation coefficient beta of the emptyingm＝(Wm3-Wm2+Wm1)/Wm3*100％；Wm3＝Vm*ρ；Wm4＝Wm3*(1-βm-1) (ii) a Rho is the density of the material;
every time the material is discharged, the expected weight is the theoretical discharging weight Wm3；
And 5: when the next vehicle is loaded, the compensation coefficient beta is adoptedmAnd calculating the emptying volume.
It should be noted that: when the error X of the previous vehicle in loading exceeds the preset value, the compensation coefficient does not adopt beta any morem-1Compensation coefficient beta of the material in the binmReference to H of the last bin of materialmAnd betamThe corresponding relationship of (a); it should be noted that, the "previous bin" herein requires similar products with similar properties when the material in the previous bin is required;
the error X ═ Wm4-Wm2+Wm1)*100％/(Wm2-Wm1)；
The preset value is 8-10 per mill
The height section H is better to be subdivided, for example, 5cm is taken as a height section, and a round bin with the height of 15 meters is taken as an example, the height section H can be divided into 200-300 height sections.
The height of the grain in the bin 1 can be measured by an ultrasonic sensor or other altimeters in the bin 1.
Therefore, implementation of the solution of the present embodiment is promising, first: the algorithm is carried out all the way on the same set of silos 1; secondly, the method comprises the following steps: the materials are the same in type and similar in properties, for example, the materials are rice with the same quality; if the previous bin is corn and the next bin is rice, it should be classified in a different algorithm system.
After the optimized design is carried out, the error rate of discharging can reach below 1% after the grain is loaded to the 3 rd to 4 th bins.
In order to further improve the discharging precision, the side wall discharging unit comprises a chute connected below the side wall of the storage bin 1 and a hopper 2 connected to the tail end of the chute; the lower part of the hopper 2 is a tapered open part 23;
a lifting distributing block 21 is arranged in the opening part 23; the distributing block 21 can rotate along with the flowing of the materials;
a first flow sensor 8 is arranged in the chute, and a second flow sensor 9 is arranged in the opening part 23; the first flow sensor 8 and the second flow sensor 9 are flow rate detection probes in practical application.
When the discharge volume is (V-y) m3The minimum cross-sectional area enclosed by the distributor block 21 and the hopper 2 is 0.4 to 0.7 times the area of the open side of the open part 23, and the data measured by the first flow sensor 8 is V1；
When the discharge volume reaches (V-y) m3Then, the minimum cross-sectional area enclosed by the distributor block 21 and the hopper 2 is 0.1 to 0.4 times the area of the open side of the open portion 23, the second flow sensor starts counting and measured data is V2；
V＝V1+V2；y＝0.1-2m3。
In practice shouldWhen in use, when the discharge volume reaches (V-1) m3Before, the distributing block 21 is lifted to a set height, the minimum cross-sectional area enclosed by the distributing block 21 and the hopper 2 is 0.5 times of the area of the open side of the open part 23, and the height is kept unchanged;
when the discharge volume reaches (V-1) m3When the remaining volume is 0.6m, the distributor block 21 is gradually lowered to 0.3 times the area of the open side of the open portion 233The distributor block 21 is again lowered to 0.2 times the area of the open side of the open portion 23, when the remaining volume is 0.3m3The distributor block 21 is again lowered to 0.1 times the area of the open side of the open portion 23.
The discharge volume reaches (V-1) m3When the distributor block 21 is required to be capable of rotating, at other times, the distributor block 21 can be locked by a pneumatic pin.
The spinning of the distributor block 21 serves two functions: 1. the smoothness of the materials entering the gap between the distributing block 21 and the opening part 23 is improved, and a cavity caused by local blockage is avoided; 2. the detection sensitivity of the second flow sensor is improved, the material can uniformly and uniformly flow at the position of the joint opening part 23, and the rapid change of the local flow velocity is avoided.
The distributor block 21 can rotate smoothly in various ways, and in this embodiment, the distributor block 21 is disposed on a double-truncated cone and the protruding strip 22 is added to achieve the purpose, specifically, the opening portion 23 is a hollow truncated cone with a thick upper part and a thin lower part; the distributing block 21 is a double-cone-shaped body; the surface of the round table at the upper part of the distributing block 21 is provided with a spiral convex strip 22 extending from top to bottom; the convex strips 22 are preferably 2 or 3; the shape of the circular truncated cone at the lower part of the distributing block 21 is matched with that of the open part 23, a lifting rod 24 is arranged in the hopper 2, a driving module 25 for driving the lifting rod 24 to lift is arranged outside the hopper 2, and the tail end of the lifting rod 24 is connected with the circular truncated cone at the upper part of the distributing block 21 through a bearing.
The driving module 25 can be a servo motor, and the lifting rod 24 is matched with the servo motor through a screw rod to realize lifting. The driving mechanism can also be driven by a cylinder.
The rib 22 is not suitable to extend to the lower round table of the distributor block 21 because the flow rate of the material in the gap between the distributor block 21 and the hopper 2 is very fast, and if the rib 22 is arranged at the lower round table of the distributor block 21, the material flow in the gap can be deviated, for example, to form a spiral blanking, which affects the metering accuracy of the second flow sensor.
The raised strip 22 is arranged on the circular table at the upper part of the distributing block 21, and can drive the distributing block 21 to rotate without causing the distributing block 21 to rotate too fast, so that the material basically keeps the trend of flowing straight downwards in the distributing block 21 and the hopper 2, and the metering accuracy of the second flow sensor can be ensured.
Through the lift of distributor block 21, can guarantee that the material has certain velocity of flow in the clearance, through the rotation of distributor block 21, can guarantee that the material can not block up under the condition of low flow, the material flow is even, quick, and the measurement accuracy nature of second flow sensor can be than higher.
The two improvements of the distributing block 21 are combined, so that the metering precision can be obviously improved.
And the metering error can be reduced to be within 6 per thousand by combining the optimization of the algorithm.
In the embodiment, the device further comprises a deformation pipe 5, the chute comprises an inclined chute 3 and a straight chute 4, and the deformation pipe 5, the inclined chute 3, the straight chute 4 and the hopper 2 are sequentially connected; one end of the deformation pipe 5, which is connected with the bin 1, is a thick end, one end of the deformation pipe, which is connected with the inclined chute 3, is a thin end, and a pneumatic gate 7 is arranged between the deformation pipe 5 and the inclined chute 3;
the straight chute 4 is fixedly connected with the bin 1 through a tripod 6;
before weighing, the empty vehicle issues an FRID card to the empty vehicle, and the FRID card is bound with the vehicle license plate;
the FRID card records a bin position, a cargo number, the weight of cargo to be purchased and the weight of the cargo over pound.
Referring to fig. 4, the specific control process is as follows:
1. the sidewall issuing standard business process comprises the following steps:
goods taking device for incoming vehicle
The driver slightly believes the reservation, and the reservation information is uploaded to a production service system;
a driver arrives at a business hall, and binds the (license plate number) and the (FRID card), and the (license plate number) and the (FRID card) are associated in the production business system;
when the vehicle enters a port, the empty vehicle is weighed to obtain the weight of the empty vehicle, and meanwhile, the state of the vehicle in the system is displayed to show the weight of the empty vehicle;
when a vehicle arrives at a warehouse, a warehouse clerk reads information by using special equipment of an FRID card and manually inputs information of ' barrel position ' and ' goods ' which are equivalent to the association of ' barrel position ', goods ' and ' license plate number ' and ' empty weight ' in a production service system.
And (3) guiding the vehicle to move to a corresponding barrel position for loading by a warehouse clerk, and after the loading is finished, weighing the vehicle to obtain the weight of the heavy vehicle, meanwhile, changing the vehicle state in the system to the weight of the heavy vehicle, and subtracting the weight of the empty vehicle from the weight of the heavy vehicle to obtain the gross weight of the vehicle, wherein the vehicle leaves the port.
2. Dump truck side wall dispensing operation
A warehouse clerk inputs an instruction in a production service system, and binds information such as a license plate number (the license plate number is an internal license plate number) with information such as a barrel position and goods;
the vehicle passes the empty pound to obtain the empty weight, and the vehicle state in the system is displayed as the empty pound;
and (3) after the side wall is loaded, weighing the side wall to obtain the weight of the heavy vehicle, and subtracting the weight of the empty vehicle from the weight of the heavy vehicle to obtain the gross weight. Meanwhile, the vehicle state is kept unchanged (empty wagon balance), and the reason is that the same vehicle can be used for multiple side wall loading operations in one shift. Each dump truck only needs to pass one empty pound every shift.
The types of jobs issued by the side walls are mainly: firstly, a vehicle for loading is issued on the side wall; secondly, the side wall is provided with a dump truck; and the side wall is provided with a loading hopper (a dump truck).
When the 'foreign vehicle picking' flow goes to the step (4), the target barrel position information and the barrel position distribution map are required to be pushed to the driver, and the driver can conveniently move to the target barrel position.
The electric equipment installed on the site is required to have dust explosion-proof certification quality, and the non-dust explosion-proof equipment is uniformly required to be installed in an explosion-proof box and cannot be directly exposed in the air.
The system is required to intelligently judge the corresponding relation between the vehicle and the barrel position, and when the corresponding relation between the vehicle and the barrel position is correct, the emptying operation can be carried out.
Requiring the system to use the weighing data of the production service system to perform internal algorithm correction to achieve the following steps: along with the accumulation of the operation records, the higher the metering precision of the system, the more ideal the metering precision of 6 per mill is strived to be achieved.
The system is required to intelligently carry out targeted calculation aiming at specific labels such as producing areas, goods, drum positions and the like, and correct the specific metering algorithm formula of each different label. Examples of the effects expected to be achieved are: brazil, soybean, QC403, the "System" can integrate the optimal algorithm formula by the above three information.
The system is required to obtain real-time weighing data of the production business system in real time. The case of data loss caused by network interruption due to accidental events should be fully considered, for example: and the data is regularly checked every day, and the data which fails in transmission is supplemented.
To avoid the vehicle being overweight. The system is required to automatically calculate the total metering quantity according to the weight limit requirement of the production service system, and the material is automatically stopped when the metering quantity reaches the value.
Besides the cameras equipped on the license plate recognition device, an additional camera is arranged on the site and used for remotely monitoring the distribution of materials in the carriage through central control.
The scene should set up and guide the pilot lamp, is used for pointing out the driver and carries on the operation of moving the car, should dispose the voice prompt function at the same time, this pilot lamp and speech device can be controlled by the site control box or central control.
The system is required to integrate all necessary functions required by the remote monitoring and operation of the central control, such as video monitoring, operation, signal display and the like, into one picture on the upper operation interface of the central control. The video stream data can be obtained from the central control original video monitoring server.
The upper control operation interface of the system is required to display the real-time state of the vehicle, such as: empty, loading completed, heavy, etc.
The server is required to be capable of storing 3-year operation data, and functions of backtracking query, report printing and the like are met.
The whole system should include at least the following devices:
referring to fig. 5, a server 10 is in communication connection with a wagon balance 11 and a side wall emptying unit, the server 10 is also in communication connection with a radio frequency receiving module 12 and cameras 13, and the radio frequency receiving module 12 is in communication connection with an rfid card 14; more specifically, the first flow sensor 8, the second flow sensor 9, the camera 13 near the hopper communicate with the server 10 through an industrial router 15 having a calculation function;
a camera 13 is mounted near the wagon balance 11 for identifying the license plate and detecting the uniformity of the material in the hopper of the truck below the side discharge unit. The wagon balance 11 and the camera 13 mounted near the wagon balance 11 communicate with the server 10 through the industrial router 15.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (6)
1. The precise discharging method for the particle material storage side wall is characterized by comprising the following steps:
step 1: weighing the empty wagon to obtain the empty wagon weight Wm1;
Step 2: the empty car reaches the position of the storage bin, the side wall of the storage bin is provided with a side wall discharging unit, and a discharging volume metering module is arranged in the side wall discharging unit; the side wall discharging unit discharges materials into a hopper of an empty car to obtain a discharging volume VmAnd theoretical discharge weight Wm3Predicting the weight W of the discharged materialm4；
And step 3: weighing device for weighing vehicleTo obtain a full load Wm2；
And 4, step 4: calculating the compensation coefficient beta of the emptyingm=（Wm3-Wm2+Wm1）/Wm3*100%；Wm3=Vm*ρ；Wm4=Wm3*（1+βm-1) (ii) a Rho is the density of the material;
and 5: when the next vehicle is loaded, the compensation coefficient beta is adoptedmCalculating the volume of the discharged materials;
the side wall discharging unit comprises a chute connected below the side wall of the storage bin and a hopper connected to the tail end of the chute; the lower part of the hopper is a tapered open part;
a liftable distributing block is arranged in the opening part; the distributing block can rotate along with the flowing of the material;
a first flow sensor is arranged in the chute;
the opening part is in a hollow round table shape with a thick upper part and a thin lower part; the distributing block is a double-cone-shaped body; the surface of the round table at the upper part of the distributing block is provided with a spiral raised line extending from top to bottom; the circular truncated cone at the lower part of the distributing block is matched with the opening part in shape;
a second flow sensor is arranged in the opening part;
when the discharge volume is (V-y) m3The minimum cross-sectional area enclosed by the distributor block and the hopper is 0.4-0.7 times of the area of the open side of the open part, and the data measured by the first flow sensor is V1；
When the discharge volume reaches (V-y) m3Then, the minimum cross-sectional area enclosed by the distributing block and the hopper is 0.1-0.4 times of the minimum cross-sectional area enclosed by the distributing block and the hopper, the second flow sensor starts counting, and the measured data is V2；
V=V1+V2；y=0.1-2m3。
2. The method for accurately discharging the side wall of the granular material storage bin as claimed in claim 1, wherein in the step 4, beta is recordedmAnd the height H of the material in the silo at the momentmTo obtainTo HmAnd betamThe corresponding relationship of (a);
when the error X of the previous vehicle in loading exceeds a preset value, the compensation coefficient beta of the materials in the binmReference to H of the last bin of materialmAnd betamThe corresponding relationship of (a);
the error X = (W)m4-Wm2+Wm1）*100%/（Wm2-Wm1）；
The preset value is 4-10 per mill.
3. The method for accurately discharging the granular material stored in the storage side wall according to claim 1, wherein a lifting rod is arranged in the hopper, a driving module for driving the lifting rod to lift is arranged outside the hopper, and the tail end of the lifting rod is connected with a circular table at the upper part of the distributing block through a bearing.
4. The method for accurately discharging the granular material storage side wall according to claim 1, further comprising a deformation pipe, wherein the chute comprises an inclined chute and a straight chute, and the deformation pipe, the inclined chute, the straight chute and a hopper are sequentially connected; the one end that the feed bin was connected to the deformation pipe is the butt, and the one end of connecting oblique elephant trunk is the thin end.
5. The method for accurately discharging the granular materials from the side wall of the granular material storage bin is characterized in that a pneumatic gate is arranged between the deformation pipe and the inclined chute;
the straight chute and the storage bin are fixedly connected through a tripod.
6. The method for accurately discharging the side wall of the granular material storage according to any one of claims 1 to 5, wherein before weighing, the empty vehicle issues a FRID card to the empty vehicle, and the FRID card is bound with the vehicle license plate;
the FRID card records a bin position, a cargo number, the weight of cargo to be purchased and the weight of the cargo over pound.
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| CN115951725B (en) * | 2023-02-03 | 2023-11-21 | 广州港股份有限公司 | Method and system for controlling discharging flow of mechanized horizontal warehouse |
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| DE2914832C2 (en) * | 1979-04-11 | 1984-04-05 | Bitzer & Co, 3200 Hidesheim | Unloading device with vehicle scales for vehicles loaded with grain |
| US4904154A (en) * | 1988-11-03 | 1990-02-27 | Kerr-Mcgee Coal Corporation | Loading system for railroad cars |
| JP2608968B2 (en) * | 1989-12-19 | 1997-05-14 | 富士電機株式会社 | Control method of cut-out amount of auxiliary raw material |
| US7411136B2 (en) * | 2006-07-03 | 2008-08-12 | Walker Harold A | Multiple batch system and method for loading railcars of a wide range of capacities and designs |
| CN102556629B (en) * | 2010-12-08 | 2016-01-20 | 浙江霸王衡器有限公司 | Intelligent automatic dosing control system |
| CN203794249U (en) * | 2014-04-29 | 2014-08-27 | 大唐电力燃料有限公司 | Coal unloading device with accurate weighing function |
| CN206142481U (en) * | 2016-09-20 | 2017-05-03 | 中国矿业大学 | Developments track scale secondary quick loading system of compensation formula ration that weighs |
| CN107954096A (en) * | 2017-11-01 | 2018-04-24 | 江门市振达机械制造有限公司 | A kind of dust suppression funnel |
| CN209038633U (en) * | 2018-04-27 | 2019-06-28 | 朱新平 | It is synchronous during railway entrucking to realize the system for automatically processing the super short weight of entrucking |
| CN109250532B (en) * | 2018-08-29 | 2021-04-20 | 山东矩阵软件工程股份有限公司 | Bulk material loading method and system based on single feed opening and related device |
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