CN202670779U - Material level balance control system - Google Patents
Material level balance control system Download PDFInfo
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- CN202670779U CN202670779U CN 201220367173 CN201220367173U CN202670779U CN 202670779 U CN202670779 U CN 202670779U CN 201220367173 CN201220367173 CN 201220367173 CN 201220367173 U CN201220367173 U CN 201220367173U CN 202670779 U CN202670779 U CN 202670779U
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Abstract
The utility model discloses a silo material level balance control system, and the system comprises a plurality of material level indicators and feeder control units, wherein the plurality of material level indicators are used for detecting material level inside the silos, the feeder control units are respectively connected with the material level indicators and a plurality of feeders in an electrical mode, the feeder control units are used for receiving the material level detected by the plurality of material level indicators, and according to the detected material level, discharging quality adjusting signals are emitted to at least one feeder of the plurality of feeders. By the aid of the above technical scheme, the material level indicators are utilized to detect the material level inside the silos, and the detected material level is used to make sure whether discharge velocity of the feeders needs to be adjusted. In the way, the material level can be timely adjusted under the condition that the material level inside the silos is not balanced. Operation can not be influenced and simultaneously, safety and stability of a whole material unloading process are guaranteed.
Description
Technical field
The utility model relates to the material level balance control system, relates in particular to a kind of material level balance control system of large-scale coal storage silo.
Background technology
The harbour is the aortic hinge of communications and transportation, and in order to realize securely and effectively shipping functions of pivoting at the harbour, storage, transportation and technics of shipment specialized, automation all are absolutely necessary.According to the characteristic of material, the scale of shipping and the requirement of the aspects such as efficient that the material storage is transported, adopted various materials memory scheduling scheme to come shipping is coordinated in the current port traffic.Such as, adopt the mode of silo storage for materials such as grain, cement more, and to modes that adopt the open storages storage such as coal ores more.
For fortune coal harbour mouth, open storage storage meeting causes the material of very large pollution and stacking to be subjected to easily the impact of weather on environment, and adopting general sealing stockyard or storehouse storage, the coal ton-kilometerage volume can be very restricted, and the efficient of whole storage and transportation is not high.Based on above reason, adopting cylindrical silo to carry out large-scale coal storage at the harbour will be more satisfactory selection.
The silo coal storage adopts to some extent in power plant and colliery, but the colliery and power plant's coal storage time is short, storage content is little, technological process is single, less demanding to efficient, categories of coal is single and do not relate to being mixed of Coal rank, and the exactly high efficiency that the harbour coal storage is paid close attention to most, many kinds, the coal that is mixed, high-throughput and the long time of storing up, therefore, if will realize at the harbour scheme of the extensive coal storage of silo, must carry out suitable transformation and improvement in structure, function and using method to existing coal storage silo.
Especially; large-scale silo for the required use of Mass storage; require the level cross-sectionn of silo very large; like this; when leaking coal at the bottom of the storehouse, integral body or local material level energy imbalance often can appear in the silo, and this will cause the coal of some position in the silo to leak on the belt feeder via the feeder at the bottom of the storehouse in time; cause the long-time accumulation of this part coal, can not be substituted by new coal.The long-term accumulation of coal very easily causes nature, even may set off an explosion, and is very dangerous, therefore needs timely the material level in the silo to be carried out balance control.
The utility model content
In order better silo to be carried out the control of material level balance, the utility model provides a kind of material level balance control system.
The utility model provides a kind of cylindrical bin material position balance control system, and wherein this silo has a plurality of feeders for discharging in the bottom, and this system comprises: a plurality of level-sensing devices that are used for detecting the material level in the described silo; The feeder control unit that is electrically connected with described a plurality of level-sensing devices and described a plurality of feeder respectively, this feeder control unit be used for to receive the detected material level from described a plurality of level-sensing devices, and comes in described a plurality of feeders at least one to send the signal of adjusting load according to detected material level.
Pass through technique scheme, detect material level in the silo with level-sensing device, and determine whether the blowdown speed of feeder is adjusted by detected material level, like this, can occur timely material level being adjusted in the unbalanced situation by the material level in silo, when not affecting operation, guaranteed the safety and stability of whole discharge process.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and consists of the part of specification sheets, is used from explanation the utility model with the following specific embodiment one, but does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows a kind of exemplary silo scheme drawing;
Fig. 2 shows the cylindrical bin material position balance control method according to a kind of embodiment of the present utility model;
Fig. 3 shows the cylindrical bin material position balance control method according to another kind of embodiment of the present utility model;
Fig. 4 shows the cylindrical bin material position balance control method according to another embodiment of the present utility model;
Fig. 5 shows the cylindrical bin material position balance control system scheme drawing according to a kind of embodiment of the present utility model;
Fig. 6 shows the cylindrical bin material position balance control system scheme drawing according to another kind of embodiment of the present utility model; And
Fig. 7 shows the cylindrical bin material position balance control system scheme drawing according to another embodiment of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
In silo structure, especially in large-scale silo structure, a plurality of feeders for discharging can be set at the bottom of the storehouse, in order to improve maximum unloading performance, and help to realize the material level balance.Quantity and the arrangement form of feeder at the bottom of the storehouse of feeder wherein, can be set according to the factors such as restriction of size, unloading performance demand and the discharge rate of size and shape, feeder at the bottom of the storehouse.
For the silo structure with feeder at the bottom of a plurality of storehouses, it can better solve the material level equilibrium problem of silo with respect to the small-sized silo that only has a feeder, but consider the factor such as shape, quality, size of the material of storage, when discharging, may occur various situations (such as since feeder degree of opening deficiency result in blockage etc.), and discharge process is produced the impact that can not estimate, and probably can cause the material overbalance.Based on this, the utility model proposes the method and system that further silo that has a plurality of feeders at the bottom of the storehouse is carried out the control of material level balance.
A kind of exemplary silo has been shown among Fig. 1.Wherein this silo 110 has a plurality of feeders 130 at the bottom of the storehouse, and the material in the silo 110 can pour on the belt feeder 150 by feeder 130, and is transported to assigned address by belt feeder 150.In the utility model, in order to realize that the material level in the silo 110 is detected and controls, also may need to arrange some accessory devices, these devices can be used as the part of the material balance control system that the utility model proposes, such as level-sensing device 120 and belt conveyer scale 140 etc., hereinafter will describe in detail.
Fig. 2 shows the cylindrical bin material position balance control method according to a kind of embodiment of the present utility model.
As shown in Figure 2, in step 210, utilize a plurality of level-sensing devices to detect the interior material level of described silo.
In step 220, adjust at least one load in described a plurality of feeder according to the detected material level of described a plurality of level-sensing devices.Namely come in described a plurality of feeders at least one to send the signal of adjusting load according to detected material level.
In this step, the function (such as aviation value) that can assert the material level value of the material level value of a specific location relevant with feeder or a plurality of specific location can determine the load of this feeder, therefore, when the value of the function of the material level value that detects these one or more specific location or material level value bigger than normal (such as, compare with the aviation value of the material level value of all level-sensing devices in the silo) time, then should reduce the load of this feeder, otherwise, then should increase the load of this feeder.
In this step, can be at first determine simulation material level curved surface in the described silo according to the detected material level of described a plurality of level-sensing devices, namely the material level value according to the ad-hoc location in the detected silo of a plurality of level-sensing devices simulates a curved surface, the ideal form of this curved surface should be consistent with the material surface configuration in the silo, therefore is called simulation material level curved surface.The material level value of any position can be simulated the material level curved surface by this and obtains in the silo like this, and can be further comes at least one the load in described a plurality of feeders is adjusted by the material level value that obtains.
Level-sensing device can setting as much as possible on a large scale, to obtain more preferably to simulate the material level curved surface.Also can be preferably (midpoint directly over such as feeder, between two feeders etc.) arrange level-sensing device at the key point place first, in the situation that guarantees certain precision, can save cost like this.
In a kind of embodiment of replacement, can only directly over feeder, level-sensing device be set so that described a plurality of level-sensing device is corresponding one by one with described a plurality of feeders.So, can adjust according to the level-sensing device directly over the feeder load of this feeder, when the material level value of this level-sensing device is bigger than normal (such as comparing with the aviation value of material level value of all level-sensing devices in the silo), then should reduce the load of this feeder, otherwise, then should increase the load of this feeder.
Preferably, described feeder is activating feeder.
Corresponding with the method among Fig. 2, in Fig. 5, the utility model also provides the cylindrical bin material position balance control system according to a kind of embodiment of the present utility model, wherein this silo have a plurality of feeder 130(concrete structures for discharging in the bottom can be with reference to figure 1).This control system comprises: a plurality of level-sensing devices 120 that are used for detecting the material level in the described silo; The feeder control unit 510 that is electrically connected with described a plurality of level-sensing devices 120 and described a plurality of feeder 130 respectively.Wherein this feeder control unit 510 is used for receiving the detected material level from described a plurality of level-sensing devices 120, and adjusts the load of at least one feeder in described a plurality of feeder 130 according to detected material level.
Preferably, described feeder control unit is determined simulation material level curved surface in the described silo according to the detected material level of described a plurality of level-sensing devices, and comes at least one the load in described a plurality of feeders is adjusted according to described simulation material level curved surface.
Replacedly, described a plurality of level-sensing devices are corresponding one by one with described a plurality of feeders, and place respectively corresponding feeder directly over.Described feeder control unit is adjusted respectively the load of the feeder corresponding with this level-sensing device at least in part according to the detected material level of each level-sensing device in described a plurality of level-sensing devices, such as, adjust in conjunction with the aviation value of the material level value of all level-sensing devices in the silo.
Fig. 3 shows the cylindrical bin material position balance control method according to another kind of embodiment of the present utility model, wherein this silo bottom is provided with a plurality of feeders for discharging, the below of this silo also is provided with parallel a plurality of belt feeders, and wherein each belt feeder corresponds respectively at least one feeder in described a plurality of feeder.
As shown in Figure 3, in step 310, open a belt feeder and the corresponding all or part of feeder of this belt feeder in described a plurality of belt feeder.
In step 320, utilize a plurality of level-sensing devices to detect the interior material level of described silo.
Preferably, described a plurality of level-sensing devices are corresponding one by one with described a plurality of feeders, and place respectively corresponding feeder directly over, to detect respectively the material level at corresponding feeder place.
Preferably, described feeder is activating feeder.
In step 330, according to the detected material level of described a plurality of level-sensing devices or when described belt feeder time of run surpassed for first schedule time, close belt feeder and the corresponding feeder of this belt feeder opened, and open different another belt feeder and the corresponding all or part of feeders of this another belt feeder of the belt feeder from using in described a plurality of belt feeder.
Preferably, repeated execution of steps 320 and step 330 in described method are to realize continuous detecting and the control to whole discharge process.
In above-mentioned steps 310-330 and repeatedly in execution in step 320 and 330 the process, if opened the corresponding whole feeders of a certain belt feeder, then adjust the load of the feeder of current unlatching according to the detected material level of described a plurality of level-sensing devices.The content of the method among this method of adjustment and Fig. 2 is consistent, repeats no more herein.
In above-mentioned steps 310-330 and repeatedly in execution in step 320 and 330 the process, if only opened the corresponding M of an a certain belt feeder feeder (wherein M is more than or equal to 1 and less than the quantity of the corresponding whole feeders of this belt feeder), then according to the detected material level of described a plurality of level-sensing devices or when described belt feeder time of run surpassed for second schedule time, M the feeder that M incomplete same feeder of use that select and M current unlatching feeder from the corresponding whole feeders of this belt feeder replaced current unlatching carries out discharging, thereby avoids because certain feeder cuts out the material level overbalance that causes for a long time.
Corresponding with the method among Fig. 3, in Fig. 6, the utility model also provides the cylindrical bin material position balance control system according to another kind of embodiment of the present utility model, wherein this silo bottom is provided with a plurality of feeders 130 for discharging, the below of this silo also is provided with parallel a plurality of belt feeders 150, wherein each belt feeder 150 corresponds respectively at least one feeder in described a plurality of feeder 130 (concrete structure can referring to Fig. 1), and this system comprises detecting a plurality of level-sensing devices 120 of the material level in the described silo; The control unit 610 that is electrically connected with described a plurality of level-sensing devices 120, described a plurality of feeders 130 and described a plurality of belt feeder 150 respectively.
Wherein, this control unit 610 is used for opening a belt feeder and the corresponding all or part of feeder of this belt feeder of described a plurality of belt feeder 150; Reception is from the detected material level of described a plurality of level-sensing devices 120; According to described a plurality of level-sensing device 120 detected material levels or when described belt feeder 150 time of ruies surpassed for first schedule time, close belt feeder and the corresponding feeder of this belt feeder opened, and open different another belt feeder and the corresponding all or part of feeders of this another belt feeder of the belt feeder from using in described a plurality of belt feeder 150.
Preferably, described control unit also is used for adjusting the load of the feeder of current unlatching according to the detected material level of described a plurality of level-sensing devices when having opened the corresponding whole feeder of a belt feeder.
Preferably, described control unit also is used for when only having opened the corresponding M of a belt feeder feeder (M is more than or equal to 1 and less than the quantity of the corresponding whole feeders of this belt feeder), according to the detected material level of described a plurality of level-sensing devices or when described belt feeder time of run surpassed for second schedule time, M the feeder that uses from the corresponding whole feeders of this belt feeder M incomplete same feeder of that select and M current unlatching a feeder to replace current unlatching carries out discharging.
Preferably, described a plurality of level-sensing devices are corresponding one by one with described a plurality of feeders, and place respectively corresponding feeder directly over, to detect respectively the material level at corresponding feeder place.
Preferably, described feeder is activating feeder.
Fig. 4 shows the cylindrical bin material position balance control method according to another embodiment of the present utility model, wherein this silo bottom is provided with a plurality of feeders for discharging, the below of this silo also is provided with parallel a plurality of belt feeders, wherein each belt feeder corresponds respectively at least one feeder in described a plurality of feeder, and has at least one belt conveyer scale on each belt feeder.
As shown in Figure 4, in step 410, open a belt feeder and the corresponding all or part of feeder of this belt feeder in described a plurality of belt feeder.
In step 420, the belt conveyer scale on the belt feeder that utilization is opened is measured the mass flow on this belt feeder.
Preferably, described feeder is activating feeder.
In step 430, according to the mass flow result of a measurement or when described belt feeder time of run surpassed for first schedule time, close belt feeder and the corresponding feeder of this belt feeder opened, and open different another belt feeder and the corresponding all or part of feeders of this another belt feeder of the belt feeder from using in described a plurality of belt feeder.
Preferably, repeated execution of steps 420 and step 430 in described method are to realize continuous detecting and the control to whole discharge process.
In above-mentioned steps 410-430 and repeatedly in execution in step 420 and 430 the process, if only opened the corresponding M of a belt feeder feeder (wherein M is more than or equal to 1 and less than the quantity of the corresponding whole feeders of this belt feeder), then when described belt feeder time of run surpassed for second schedule time, M the feeder that M incomplete same feeder of use that select and M current unlatching feeder from the corresponding whole feeders of this belt feeder replaced current unlatching carries out discharging, to avoid because the material level overbalance that certain feeder is not worked and caused for a long time.
Preferably, also can comprise step 440 in the described method of Fig. 4, in this step, utilize a plurality of level-sensing devices to detect the interior material level of described silo.
In above-mentioned steps 410-430 and repeatedly in execution in step 420 and 430 the process, when having opened the corresponding whole feeder of a belt feeder, adjust the load of the feeder of current unlatching according to the detected material level of described a plurality of level-sensing devices.The content of the method among this method of adjustment and Fig. 2 is consistent, repeats no more herein.
Owing to be provided with a plurality of level-sensing devices, in step 420-430, close belt feeder and the corresponding feeder of this belt feeder of opening according to the mass flow result of a measurement and open on the basis of another different belt feeder of the belt feeder from using in described a plurality of belt feeder and the corresponding all or part of feeder of this another belt feeder, can also according to the detected material level of described a plurality of level-sensing devices, carry out above-mentioned same operation.The content of the method among this method of adjustment and Fig. 3 is consistent, repeats no more herein.
Preferably, when all needs carried out above-mentioned same operation according to the detected material level of described a plurality of level-sensing devices and described mass flow result of a measurement, the priority of the detected material level of described a plurality of level-sensing devices was higher.By way of example, if determine to switch to the second belt feeder according to the mass flow result of a measurement on the first belt feeder, but should switch back the first belt feeder from the second belt feeder according to the detected material level of level-sensing device simultaneously, then open the first belt feeder and close the second belt feeder, this is higher because of the priority of the judgement of carrying out according to detected material level.
Preferably, described a plurality of level-sensing devices are corresponding one by one with described a plurality of feeders, and place respectively corresponding feeder directly over, to detect respectively the material level at corresponding feeder place.
Corresponding with the method among Fig. 4, in Fig. 7, the utility model also provides the cylindrical bin material position balance control system according to another embodiment of the present utility model, wherein this silo bottom is provided with a plurality of feeders 130 for discharging, the below of this silo also is provided with parallel a plurality of belt feeders 150, wherein each belt feeder corresponds respectively at least one feeder (concrete structure is referring to Fig. 1) in described a plurality of feeder 130, this system comprises a plurality of belt conveyer scales 140, wherein is provided with at least a belt conveyer scale on each belt feeder in described a plurality of belt feeders 150; The control unit 710 that is electrically connected with described a plurality of feeders 130, described a plurality of belt feeders 150 and described a plurality of belt conveyer scale 140 respectively.
Wherein, this control unit 710 is used for opening a belt feeder and the corresponding all or part of feeder of this belt feeder of described a plurality of belt feeder 150; Reception is from the measured mass flow of the belt conveyer scale 140 of the belt feeder of opening; According to described mass flow or when described belt feeder time of run surpassed for first schedule time, close belt feeder and the corresponding feeder of this belt feeder opened, and open different another belt feeder and the corresponding all or part of feeders of this another belt feeder of the belt feeder from using in described a plurality of belt feeder.
Preferably, described control unit also is configured to, when only having opened the corresponding M of a belt feeder feeder (wherein M is more than or equal to 1 and less than the quantity of the corresponding whole feeders of this belt feeder), if described belt feeder time of run surpassed for second schedule time, M the feeder that then uses from the corresponding whole feeders of this belt feeder M incomplete same feeder of that select and M current unlatching a feeder to replace current unlatching carries out discharging.
In above system, described control unit also is used for utilizing a plurality of level-sensing devices to detect the interior material level of described silo.
Preferably, described control unit also is used for adjusting the load of the feeder of current unlatching according to the detected material level of described a plurality of level-sensing devices when having opened the corresponding whole feeder of a belt feeder.
Preferably, described control unit is being closed belt feeder and the corresponding feeder of this belt feeder of opening and is being opened on the basis of another different belt feeder of the belt feeder from using in described a plurality of belt feeder and the corresponding all or part of feeder of this another belt feeder according to the mass flow result of a measurement, can also according to the detected material level of described a plurality of level-sensing devices, carry out above-mentioned same operation.More preferably, when all needs carried out above-mentioned same operation according to the detected material level of described a plurality of level-sensing devices and described mass flow result of a measurement, the priority of the detected material level of described a plurality of level-sensing devices was higher.
Preferably, described a plurality of level-sensing devices are corresponding one by one with described a plurality of feeders, and place respectively corresponding feeder directly over, to detect respectively the material level at corresponding feeder place.
Also can carry out combination in any between the various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Pass through technique scheme, detect material level in the silo with level-sensing device, and determine whether the blowdown speed of feeder is adjusted by detected material level, like this, can occur timely material level being adjusted in the unbalanced situation by the material level in silo, when not affecting operation, guaranteed the safety and stability of whole discharge process.
Claims (3)
1. cylindrical bin material position balance control system, wherein this silo has a plurality of feeders for discharging in the bottom, it is characterized in that, and this system comprises:
Be used for detecting a plurality of level-sensing devices of the material level in the described silo;
The feeder control unit that is electrically connected with described a plurality of level-sensing devices and described a plurality of feeder respectively, this feeder control unit be used for to receive the detected material level from described a plurality of level-sensing devices, and comes in described a plurality of feeders at least one to send the signal of adjusting load according to detected material level.
2. system according to claim 1 is characterized in that, described a plurality of level-sensing devices are corresponding one by one with described a plurality of feeders, and place respectively corresponding feeder directly over.
3. the described system of each according to claim 1-2 is characterized in that, described feeder is activating feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220367173 CN202670779U (en) | 2012-07-26 | 2012-07-26 | Material level balance control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220367173 CN202670779U (en) | 2012-07-26 | 2012-07-26 | Material level balance control system |
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| CN202670779U true CN202670779U (en) | 2013-01-16 |
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| CN 201220367173 Expired - Lifetime CN202670779U (en) | 2012-07-26 | 2012-07-26 | Material level balance control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774666A (en) * | 2012-07-26 | 2012-11-14 | 中国神华能源股份有限公司 | Material-level balance control method and system |
| CN107601069A (en) * | 2017-09-18 | 2018-01-19 | 中铁第四勘察设计院集团有限公司 | A kind of bottom door hopper car is by coal bunker discharge rate control system |
-
2012
- 2012-07-26 CN CN 201220367173 patent/CN202670779U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774666A (en) * | 2012-07-26 | 2012-11-14 | 中国神华能源股份有限公司 | Material-level balance control method and system |
| CN102774666B (en) * | 2012-07-26 | 2015-11-18 | 中国神华能源股份有限公司 | Material level balance control method and system |
| CN107601069A (en) * | 2017-09-18 | 2018-01-19 | 中铁第四勘察设计院集团有限公司 | A kind of bottom door hopper car is by coal bunker discharge rate control system |
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| C14 | Grant of patent or utility model | ||
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| CB03 | Change of inventor or designer information |
Inventor after: Liu Lin Inventor after: Song Yumin Inventor after: Liu Xin Inventor after: Sun Liwei Inventor after: Xu Enming Inventor after: Han Dongdong Inventor before: Liu Lin Inventor before: Song Yumin Inventor before: Liu Xin Inventor before: Sun Liwei Inventor before: Xu Enming Inventor before: Han Dongdong |
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| CX01 | Expiry of patent term |
Granted publication date: 20130116 |
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