CN108147154A - A kind of closed silo isolation cycle discharge control method - Google Patents
A kind of closed silo isolation cycle discharge control method Download PDFInfo
- Publication number
- CN108147154A CN108147154A CN201810037044.XA CN201810037044A CN108147154A CN 108147154 A CN108147154 A CN 108147154A CN 201810037044 A CN201810037044 A CN 201810037044A CN 108147154 A CN108147154 A CN 108147154A
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- China
- Prior art keywords
- hopper
- valve
- discharge
- inlet valve
- outlet valve
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- 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.)
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Classifications
-
- 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
- B65G65/42—Devices for emptying otherwise than from the top using belt or chain conveyors
-
- 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
-
- 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
- B65G2203/02—Control or detection
Abstract
The present invention is a kind of closed silo isolation cycle discharge control method, particularly have flue gas by discharge device autocontrol method, belong to discharge automatic control technology field.Technical solution is：Same two feed bins of hopper Corresponding matching by controlling the opening and closing of hopper feed valve and outlet valve, and then control the material conveying of feed bin；Low material position trigger switch L is equipped in the hopperbWith high charge level trigger switch La, inlet valve include inlet valve Va and inlet valve Vb, outlet valve be outlet valve Vc.Beneficial effects of the present invention：Have a very strong versatility, and can directly monitoring and display current valve equipment open and-shut mode, operating personnel can be easily controlled system equipment and reduce accident；The number of withdrawal rate is estimated that by the on-off times of valve, the condition of production is had gained some understanding and controlled indirectly, can be optimized, makes full use of resource, avoids wasting.
Description
Technical field
The present invention is a kind of closed silo isolation cycle discharge control method, particularly have flue gas by discharge fill
The autocontrol method put belongs to discharge automatic control technology field.
Background technology
At present, during the materials such as industrial material conveying, hopper feed bin discharge convey, material is generally stored inside big
In feed bin, then by hopper control material falling speed, discharge quantity to belt feeder conveying and blanking, so as to reach the conveying of material
Or the purpose of discharge.The common design of prior art is that a feed bin corresponds to a hopper, the then conveying of control material.This
Kind design is more popular simple, and shortcoming is that equipment occupation space is larger, and mechanical equipment, instrumentation, electrical equipment exist certain
Repetition amount so as to cause a large amount of wasting of resources.At the same time, have flue gas by the usually entire technique mistake of discharge device
Range request is closed, cannot have flue gas intersection in the transmission process for carrying out material between feed bin, for this discharge work
Skill just needs post personnel continuously to grasp material real-time condition, once carelessness is likely to result in equipment damage or personnel's thing
Therefore there is certain blind area and hidden danger.
Invention content
The object of the present invention is to provide a kind of closed silo isolation cycle discharge control methods, utilize PLC and DCS systems
The closed material bin isolation cycle discharge that system is realized designs different discharge devices and discharge control for discharge situation not of the same race
Method processed, uses manpower and material resources sparingly, and eliminates safe hidden trouble, and solves the above problem in the presence of background technology.
The technical scheme is that：
A kind of closed silo isolation cycle discharge control method, same two feed bins of hopper Corresponding matching, passes through control
The opening and closing of hopper feed valve and outlet valve, and then control the material conveying of feed bin；Low material position trigger switch is equipped in the hopper
LbWith high charge level trigger switch La, inlet valve include inlet valve Va and inlet valve Vb, outlet valve be outlet valve Vc；
The top of inlet valve Va and inlet valve Vb, inlet valve Va and inlet valve Vb for being equipped with parallel arrangement above hopper connect respectively
Respective feed bin, hopper lower section are equipped with outlet valve Vc；Material transmission process in hopper：When inlet valve Va or inlet valve Vb is opened
Material is into material bin, material discharge hopper when outlet valve Vc is opened；During discharge, valve Va or inlet valve Vb and discharging are expected
Valve is that cycle discontinuity performs opening and closing order；Control process is：When inlet valve Va is opened, inlet valve Vb and outlet valve
Vc is closed；When inlet valve Vb is opened, inlet valve Va and outlet valve Vc are closed；When outlet valve Vc is opened, inlet valve Va and into
Expect that valve Vb is closed.
The control mode of the present invention causes hopper in synchronization only there are one inlet valve opening, in the hopper for containing gas
Or in the discharging process of feed bin, gas medium will not be caused to diffuse to other devices by hopper, so as between different feed bins
Play buffer action；The opening time needs of inlet valve are set according to corresponding technique actual conditions, and when hopper
High charge level trigger switch LaDuring action, all inlet valves are closed；The opening time of outlet valve also need according to actual conditions into
Row setting, as low material position trigger switch LbDuring action, discharge valve is closed.
According to different process conditions, the arrangement mode of hopper is divided into two kinds of column and matrix form；
The control process of column hopper：When there are two or during more than two hopper, each hopper matches two feed bins, multiple material
Bucketline formula arranges, and the outlet valve of each hopper shares same belt conveyor.
The control process of column hopper is：Control the discharging sequence of hopper and the belt conveyor rotation direction phase of institute blanking
It is inverse；Hopper outlet valve is opened for order request formula, and after having the order that any one material inlet valve performs charging, discharging is asked
It asks and is triggered, outlet valve waits for discharging sequence and then can perform discharge order；This process needs to calculate each hopper in skin
The run time of next hopper is run to the discharging point on conveyer, this time is the stand-by period；The process of discharge is cycle
, if hopper does not have discharge request, the discharge that this hopper carries out next hopper is skipped, the last one hopper discharge is completed
Afterwards, it needs to wait for this hopper corresponding stand-by period, then starts the cycle of next discharge.
The arrangement of matrix form hopper：When meet complicated technology demand or there are equipment place use space limitation when,
The arrangement of hopper is matrix arrangement, and such mode can improve space utilization and improve material transfer efficiency；There are two
Or during two or more hopper, each hopper matches two feed bins, several hopper elder generation column arrangements, the hopper of each column shares together
One feeding pipe；Multiple row is arranged, the feeding pipe of each column shares same belt conveyor.
The control process of matrix form hopper is divided into two kinds：A kind of is the control method according to the discharge of column hopper to matrix
Formula material bin hopper is organized into groups, then converting putting in order for hopper according to the demand of production technology carries out discharge, Ci Zhongfang
The feed bin of discharge can be freely combined in formula, have very strong operability；Another way is according in actual items matrix
Columns, cycle discharge can be carried out at the same time by adjusting the aperture of all outlet valves so as to reach the hopper of all row, and can be with
The different group of different behaviors is combined as arrangement, such mode can greatly improve discharge efficiency.
Beneficial effects of the present invention：There is very strong versatility, and being capable of directly monitoring and the equipment opening and closing of display current valve
State, operating personnel can be easily controlled system equipment and reduce accident；It is estimated that by the on-off times of valve
The number of withdrawal rate, has gained some understanding and controls to the condition of production indirectly, can optimize, make full use of resource, avoid wasting.
Description of the drawings
Fig. 1 hopper discharge control logic schematic diagrames of the present invention；
Fig. 2 is hopper schematic diagram of the present invention；
Fig. 3 is one column hopper discharge schematic diagram of the embodiment of the present invention；
Fig. 4 is the more hopper schematic diagrames of two matrix form of the embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing, by embodiment, the present invention will be further described.
A kind of closed silo isolation cycle discharge control method, same two feed bins of hopper Corresponding matching, passes through
The opening and closing of hopper feed valve and outlet valve is controlled, and then controls the material conveying of feed bin；Low material position is equipped in the hopper to trigger
Switch LbWith high charge level trigger switch La, inlet valve include inlet valve Va and inlet valve Vb, outlet valve be outlet valve Vc；
The top of inlet valve Va and inlet valve Vb, inlet valve Va and inlet valve Vb for being equipped with parallel arrangement above hopper connect respectively
Respective feed bin, hopper lower section are equipped with outlet valve Vc；Material transmission process in hopper：When inlet valve Va or inlet valve Vb is opened
Material is into material bin, material discharge hopper when outlet valve Vc is opened；During discharge, valve Va or inlet valve Vb and discharging are expected
Valve is that cycle discontinuity performs opening and closing order；Control process is：When inlet valve Va is opened, inlet valve Vb and outlet valve
Vc is closed；When inlet valve Vb is opened, inlet valve Va and outlet valve Vc are closed；When outlet valve Vc is opened, inlet valve Va and into
Expect that valve Vb is closed.
The control mode of the present invention causes hopper in synchronization only there are one inlet valve opening, in the hopper for containing gas
Or in the discharging process of feed bin, gas medium will not be caused to diffuse to other devices by hopper, so as between different feed bins
Play buffer action；The opening time needs of inlet valve are set according to corresponding technique actual conditions, and when hopper
High charge level trigger switch LaDuring action, all inlet valves are closed；The opening time of outlet valve also need according to actual conditions into
Row setting, as low material position trigger switch LbDuring action, discharge valve is closed.
According to different process conditions, the arrangement mode of hopper is divided into two kinds of column and matrix form；
Embodiment one, with reference to attached drawing 3, the control process of column hopper：When there are two or during more than two hopper, each hopper
Two feed bins, multiple hopper column arrangements are matched, the outlet valve of each hopper shares same belt conveyor.
The control process of column hopper is：Control the discharging sequence of hopper and the belt conveyor rotation direction phase of institute blanking
It is inverse；Hopper outlet valve is opened for order request formula, and after having the order that any one material inlet valve performs charging, discharging is asked
It asks and is triggered, outlet valve waits for discharging sequence and then can perform discharge order；This process needs to calculate each hopper in skin
The run time of next hopper is run to the discharging point on conveyer, this time is the stand-by period；The process of discharge is cycle
, if hopper does not have discharge request, the discharge that this hopper carries out next hopper is skipped, the last one hopper discharge is completed
Afterwards, it needs to wait for this hopper corresponding stand-by period, then starts the cycle of next discharge.
With reference to attached drawing 3, determine that hopper discharge sequence is B3-B2-B1 according to the rotation direction of belt conveyor, feed bin passes through
Inlet valve is to hopper discharge.According to actual production technology Calculation drain time length, inlet valve Va3 or Vb3, which are performed, opens life
Enable, complete charging period or hopper B3 have high charge level signal La triggering, then inlet valve close, outlet valve Vc3 is touched at this time
The response of hair request discharge waits for discharge sequence.After Vc3 performs discharge order, the process of discharge is completed, at this time hopper discharge
Sequence is directed toward Vc2, if B2 storehouses have the process for having charging after this cycle starts, and Vc2 has the request of discharge, then Vb2
Discharge order is performed, if B2 storehouses, without the process of charging, discharge sequence is directed toward Vc1, feed bin B1 is carried out such as the judgement of B2,
So that it is determined that whether Vc1 performs discharge order.If Vc2, which completes discharge order rear hopper B1, does not have discharge demand, cycle etc.
Treat stand-by period of the time corresponding to B2 hoppers.If Vc1 finally completes discharging process, the stand-by period is recycled as B1 hoppers
The corresponding stand-by period, the stand-by period finishes starts next cycle later.The control logic side when there is multiple feed bin hoppers
Formula similarly, so control of the discharge of column feed bin hopper in order to control.
Embodiment two, with reference to attached drawing 4, the arrangement of matrix form hopper：When meeting complicated technology demand or there are equipment fields
When ground uses the limitation in space, the arrangement of hopper is matrix arrangement, and such mode can improve space utilization and improve object
Expect transfer efficiency；When there are two or during more than two hopper, each hopper matches two feed bins, several hopper elder generations column row
Row, the hopper of each column share same feeding pipe；Multiple row is arranged, the feeding pipe of each column shares same belt conveyor.
The control process of matrix form hopper is divided into two kinds：A kind of is the control method according to the discharge of column hopper to matrix
Formula material bin hopper is organized into groups, then converting putting in order for hopper according to the demand of production technology carries out discharge, Ci Zhongfang
The feed bin of discharge can be freely combined in formula, have very strong operability；Another way is according in actual items matrix
Columns, cycle discharge can be carried out at the same time by adjusting the aperture of all outlet valves so as to reach the hopper of all row, and can be with
The different group of different behaviors is combined as arrangement, such mode can greatly improve discharge efficiency.
With reference to attached drawing 4, according to the transmission direction of the arrangement mode of hopper and belt conveyor, the cycle of hopper discharge is suitable
Sequence is B6-B5-B4-B3-B2-B1-B6, and discharge priority is followed successively by from high to low：Va6-Va5-Va4-Va3-Va2-Va1, tool
The control method of body can refer to the control method of the discharge of column material bin hopper.Another control mode is B6-B5-B4-
B6 and B3-B2-B1-B3 are carried out at the same time, but need to adjust the aperture of outlet valve to adapt to the bearing capacity of lower floor's belt conveyor.
The control method of the present invention comprises the following steps：
Determine the design of material bin hopper.The design method of material bin is a kind of using that in Project design, determines to choose that one kind
Control method controls.
Determine the instrument control device of material bin hopper.Hopper whether using height material position, whether have pressure control, whether
Whether reversely charging gas medium, material thereby determine that the chained approach of valve along with gas medium etc..
Discharge circular order is determined by the rotation direction of belt conveyor.The rotation direction of belt feeder and material bin hopper
Cycle discharge direction contrary can preferably ensure the normal operation of discharge.
Determine that discharging point of each material bin hopper on belt conveyor is transported to the run time of subordinate equipment, this time
For the stand-by period, and calculate according to process condition the aperture of valve.Each stand-by period is the interval time recycled every time.
According to the control logic of above step editor's material bin hopper.Used PLC and DCS is combined according to control logic
System writes control program.
Control program is debugged, is optimized with reference to actual conditions.
Claims (3)
1. a kind of closed silo isolation cycle discharge control method, it is characterised in that：Same hopper Corresponding matching two
Feed bin by controlling the opening and closing of hopper feed valve and outlet valve, and then controls the material conveying of feed bin；It is equipped in the hopper low
Material position trigger switch LbWith high charge level trigger switch La, inlet valve include inlet valve Va and inlet valve Vb, outlet valve is outlet valve
Vc；
The top of inlet valve Va and inlet valve Vb, inlet valve Va and inlet valve Vb for being equipped with parallel arrangement above hopper connect respectively
Respective feed bin, hopper lower section are equipped with outlet valve Vc；Material transmission process in hopper：When inlet valve Va or inlet valve Vb is opened
Material is into material bin, material discharge hopper when outlet valve Vc is opened；During discharge, valve Va or inlet valve Vb and discharging are expected
Valve is that cycle discontinuity performs opening and closing order；Control process is：When inlet valve Va is opened, inlet valve Vb and outlet valve
Vc is closed；When inlet valve Vb is opened, inlet valve Va and outlet valve Vc are closed；When outlet valve Vc is opened, inlet valve Va and into
Expect that valve Vb is closed.
2. a kind of closed silo isolation cycle discharge control method according to claim 1, it is characterised in that：When having
During two or more hoppers, each hopper matches two feed bins, multiple hopper column arrangements, the outlet valve of each hopper
Share same belt conveyor；The control process of column hopper is：Control the discharging sequence of hopper and the Belt Conveying of institute blanking
Machine rotation direction contrary；Hopper outlet valve is opened for order request formula, when the life for having any one material inlet valve to perform charging
After order, the request of discharging is triggered, and outlet valve waits for discharging sequence and then can perform discharge order；This process needs to calculate every
Discharging point of one hopper on belt conveyor runs to the run time of next hopper, and this time is the stand-by period；Discharge
Process be cycle, if hopper does not have discharge request, skip the discharge that this hopper carries out next hopper, the last one material
It struggles against after the completion of discharge, needs to wait for this hopper corresponding stand-by period, then start the cycle of next discharge.
3. a kind of closed silo isolation cycle discharge control method according to claim 1, it is characterised in that：When having
During two or more hoppers, each hopper matches two feed bins, several hopper elder generation column arrangements, the hopper of each column is total to
With same feeding pipe；Multiple row is arranged, the feeding pipe of each column shares same belt conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037044.XA CN108147154A (en) | 2018-01-15 | 2018-01-15 | A kind of closed silo isolation cycle discharge control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037044.XA CN108147154A (en) | 2018-01-15 | 2018-01-15 | A kind of closed silo isolation cycle discharge control method |
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| CN108147154A true CN108147154A (en) | 2018-06-12 |
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| CN201810037044.XA Pending CN108147154A (en) | 2018-01-15 | 2018-01-15 | A kind of closed silo isolation cycle discharge control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761004A (en) * | 2019-03-25 | 2019-05-17 | 广东洁冠能源科技有限公司 | Device for transporting objects, component and method |
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