CN102320513A - Quantitative weighing and automatic loading system for mine skip - Google Patents
Quantitative weighing and automatic loading system for mine skip Download PDFInfo
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- CN102320513A CN102320513A CN201110287113A CN201110287113A CN102320513A CN 102320513 A CN102320513 A CN 102320513A CN 201110287113 A CN201110287113 A CN 201110287113A CN 201110287113 A CN201110287113 A CN 201110287113A CN 102320513 A CN102320513 A CN 102320513A
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Abstract
The invention relates to a quantitative weighing and automatic loading system for a mine skip, which is based on the technology of non-contact weighing. The quantitative weighing and automatic loading system for the mine skip comprises a coal feeder, a skip hoisting system and a quantitative weighing device, wherein the quantitative weighing device comprises a magnet and a group Hall sensors or two groups of parallel Hall sensors, each Hall sensor in the Hall sensor groups is orderly mounted at one side of a shaft, the magnet and the Hall sensors are correspondingly mounted on a hoisting skip, and the Hall sensors output signals to connect a program controller; the program controller outputs signals to control and connect the coal feeder, and sends stopping and operating signals to a hoisting control room. The quantitative weighing and automatic loading system for the mine skip is simple in structure, safe to use, economic and reliable. In the system, a chamber structure of an original system is improved, a measuring hopper is cancelled, and the raw coal is directly loaded in the hoisting skip through belts, so that the system is low in cost of construction, investment of the system is less than 0.3-0.4% of that of a measuring hopper box type loading facility, complexity of the loading system is reduced, input cost is reduced, and unwanted faults and hidden troubles are avoided.
Description
Technical field
The present invention relates to a kind of mine quantitative loading system, particularly relate to the heavy surely automatic loading system of a kind of mine skip based on the noncontact weighing technology.
Background technology
" safety regulations in coal mine " the 382nd regulation: " skip hoisting must be adopted quantitative loading ".The box loading facilities of measure hopper has been decided to be standardized stowage equipment in China, has simple in structurely, does not use advantages such as other accessory equipments during loading.Its weighing principle is as shown in Figure 1.Wherein, driven by feeder 2, raw coal is exported from coal bunker 1, through belt feeder 3 transportations, is loaded into and carries out weighing in the measure hopper 5.Raw coal weight in measure hopper 5 reaches given value, and control system promptly stops feeder and belt feeder action.System detect to promote the position of skip bucket 6 then, after skip bucket to be hoisted puts in place with the lifting skip bucket of packing into of the raw coal in the measure hopper.
Yet under the different geological condition, some colliery ature of coal viscosity is big; Moisture is uncertain; Traditional skip hoisting formula quantitative loading system is in the use of reality, and the stagnant coal of the skip bucket of the box loading facilities of measure hopper is serious, and stagnant coal amount has uncertainty.As shown in Figure 1; Big for these collieries because of ature of coal viscosity; Raw coal is detained the problem of measure hopper because of humidity, engineering staff tend to force raw coal entering lifting skip bucket in the measure hopper through the method for in measure hopper 5, loading air bubble (label 4 among Fig. 1).And in this case, microelectronic element is influenced by mal-conditions such as well letter water burst is serious, chamber high humidity, is easy to damage, and then causes control convenience to break down and stop transport.In the production process in the colliery of this ature of coal, change main shaft skip hoisting into M/C usually.Reach sensation during operation by rule of thumb, the coal amount that estimate to stagnate adopts and gets counting ready (27～55s) load, very inaccurate, half jar of lifting often occur and overflow, and it is big to spread the coal amount, and hoisting capacity receives great restriction.
Traditional skip hoisting formula quantitative loading system, existing problems be as follows: installations of (1) measure hopper case need to be dug bigger chamber and increased the sinking shaft degree of depth, and rock tunnel engineering needs 3,000,000 yuan, measure hopper case and controlling not fully in addition, and intermediate link is many, invests huge; (2) the light current microelectronics original paper of control convenience is influenced by harsh environment often, breaks down and malfunctioning; Ask because of ature of coal is different with moisture when (3) loading to change, be unfavorable for realizing promoting automation; (4) in service having increased more than hoisting depth and the draining height 10m increased running expense.
Mine hoisting cost and running expense are one of key factors that influences mine production technology economy index.Traditional skip hoisting formula quantitative loading system adopts batch scale to carry out the raw coal weighing, and there are two bigger drawbacks in this weighing structure: 1. complex structure, easy break-down; 2. the situation that the raw coal that moisture is big is detained measure hopper is comparatively outstanding, and the increase air bubble is dredged and increased cost and complexity.Be applied to the big ature of coal mine of moisture, because the main shaft hooist system power is big, power consumption is many, and its power consumption accounts for 6～10% of mine total electricity consumption greatly, has caused severe energy waste.Increased productive costs and do not said, caused serious resource and energy dissipation especially, be unfavorable for building a conservation-minded society.
Therefore, the main shaft hooist system presses for economy, reliable, safety, loading attachment that degree of automation is high, to bring into play capacity of equipment as far as possible, reduces hoisting cycle, reduces electrical energy consumption per tonne of raw coal.At present, big to the down-hole water yield, raw coal is detained the problem of measure hopper because of humidity, and some engineering staffs are merged loading and unloading automation system and main shaft hooist system, on the degree of automation of main shaft hooist system, have carried out good try.In some place, the measure hopper Load System has been carried out the automation improvement, adopt PLC to realize procedure auto-control, improved lifting loading automation degree, reduced labour intensity.Though above improvement and test have solved shortcomings such as traditional Load System speed is slow, reliability is low to a certain extent, do not solve original system cost costliness, baroque problem.
Summary of the invention
The present invention is directed to the problem that traditional batch scale Load System exists, propose the heavy surely automatic loading system of a kind of mine skip based on the noncontact weighing technology, simple in structure, economical operation is reliable.
The technical scheme that the present invention adopted:
The heavy surely automatic loading system of a kind of mine skip; Comprise feeder, skip hoisting system, quantitative weighing device; Programming controller; The primary detecting element of said quantitative weighing device adopts Hall element, and said quantitative weighing device comprises magnet and one group or two groups of Hall elements arranged side by side, and each Hall element in the said Hall element group is installed in pit shaft one side successively; Magnet and Hall element correspondence are installed in and promote on the skip bucket said Hall element output signal linker controller; Programming controller output signal control linkage feeder, and send and stop and run signal to promoting control cabin.
The heavy surely automatic loading system of described mine skip; Be provided with microprocessor control system at the lifting control cabin; Said programming controller is connected with microprocessor control system alternately, programming controller output signal control linkage feeder and lifting skip hoisting system, and microprocessor control system comprises man-machine interface.
The heavy surely automatic loading system of described mine skip comprises belt transporter, and said feeder convey materials is to belt transporter, and the charge door of lifting skip bucket is corresponding under the setting of belt transporter spout and the reinforced state.
Useful good effect of the present invention:
1, the heavy surely automatic loading system of mine skip of the present invention has realized that effectively main lifting automatic ration loads, and is simple in structure, safe and reliable, economical, reasonable.Improved the chamber structure of original system, the cancellation measure hopper adopts raw coal directly to get into the filling structure of skip bucket through belt.Cost of the present invention is low, 6000 yuan/cover of average out to, and investment has reduced the complexity of Load System on the one hand less than the box loading facility of measure hopper 0.3-0.4%, has reduced input cost, has avoided unnecessary potential faults; Use good in economic efficiencyly on the other hand, reduced chamber volume (excavation chamber 2500m
3About), can reduce about shaft building degree of depth 10m New Built Mine, the each lifting reduced range of lift 10m, and draining highly reduces 10m, has practiced thrift the main shaft construction cost.
Simultaneously, the heavy surely automatic loading system of mine skip of the present invention overcomes the coal phenomenon that stagnates effectively, greatly alleviates coal inclined gallery work capacity clearly, and clear coal work capacity significantly reduces, and has practiced thrift a large amount of manpower and materials; And to the impact of steel rope and head sheave, prolonged rope service-life when having reduced the coal loading.Grab in present enterprise under the situation of management, wound benefit, the achievement in research of this project will be more extensively with the value.
2, the heavy surely automatic loading system of mine skip of the present invention adopts Hall acquisition sensor perception skip bucket position, and control accuracy is high, the electrical isolation performance is good, can effectively avoid strong power part to scurry into weak current part, and fault rate is zero basically.In pit shaft one side one group of Hall element is installed, one of magnet is installed on skip bucket, carry out the raw coal weighing according to the principle that raw coal weight and rope capacity are directly proportional.After skip bucket was transferred to designated depth, the feedback of the logical Hall element of system was obtained the move down amount (be the stretched length of steel rope) of skip bucket in loading process.Reach designated length when steel rope stretches, i.e. expression is loaded into setting weight.So system stops to load, and sends the lifting signal.Sensor groups be provided with on the one hand can the dynamic reflection skip bucket change in depth, can adjust the error that cause with the different of steel rope extension in winter rate summer simultaneously.
3, the heavy surely automatic loading system of mine skip of the present invention based on the PLC control setup, adopts microcomputer technology that the signal of each Hall element is gathered, and carries out automatic loading according to setting.Send parking and run signal to promoting control cabin after the loaded.System provides man-machine interface at the loading chamber.Because the down-hole water yield is big, general components and parts damage easily or lost efficacy.Hall element perception magnet signal, reliable operation, stable under harsh environment.Control Technique of Microcomputer is full-fledged comparatively speaking, and feasibility is bigger.Can be manually, conversion automatically, and not locking is manual automatically, makes manually, the automatic safe operation.
4, the heavy surely automatic loading system of mine skip of the present invention, the employing of main lifting automatic ration loading attachment is formed decision circuit by the switch of contact and realized loading automation fully, and is directly perceived, simple, as long as there is general electrician's knowledge to keep in repair.Antijamming capability is strong, long service life.Easy to use, only need adjustment hall sensing head position and time relay to get final product in the regular period.It is respond well since use in the Tie Shenggou colliery.
Description of drawings
Fig. 1: the quantitative automatic loading control system of traditional main shaft schematic diagram;
Fig. 2: the quantitative automatic loading control system of main shaft of the present invention schematic diagram;
Fig. 3: the quantitative automatic loading control system of main shaft of the present invention quantitative weighing schematic diagram of device;
Fig. 4: the heavy surely automatic loading system of mine skip of the present invention claims the system works schematic diagram in the school, and wherein (a) is the electronic scales erection plan; (b) claim schematic diagram for the school.
The specific embodiment
Embodiment one: referring to Fig. 2, Fig. 3.The heavy surely automatic loading system of mine skip of the present invention; Comprise feeder 2, skip hoisting system, quantitative weighing device; Programming controller; The primary detecting element of said quantitative weighing device adopts Hall element, and said quantitative weighing device comprises magnet 8 and one group or two groups of Hall elements 7 arranged side by side, and each Hall element in the said Hall element group is installed in pit shaft one side successively; Said magnet 8 is installed in Hall element 7 correspondences and promotes on the skip bucket 6 said Hall element output signal linker controller; Programming controller output signal control linkage feeder 2, and send and stop and run signal to promoting control cabin.The heavy surely automatic loading system of described mine skip comprises belt feeder 3, and said feeder 2 convey materials are to belt feeder 3, and the charge door of lifting skip bucket 6 is corresponding under the setting of the spout of said belt feeder and the reinforced state.Fig. 3 is the heavy surely automatic loading systematic quantification weighting apparatus schematic diagram of mine skip of the present invention.
Referring toFig. 2 is the layout of equipment in the heavy surely automatic loading system of the mine skip of the present invention chamber.The heavy surely automatic loading system implementation of mine skip of the present invention has improved the chamber structure of original system, has cancelled measure hopper, adopts raw coal directly to get into the filling structure of skip bucket through belt, and cost is low, and investment is less than the box loading facility of measure hopper 0.3-0.4%.To New Built Mine, reduced excavation chamber volume, to reduce about shaft building degree of depth 10m, the each lifting reduced range of lift 10m, and draining highly reduces 10m, has practiced thrift the main shaft construction cost.Simultaneously, the present invention has reduced the complexity of Load System, has reduced input cost, has avoided unnecessary potential faults.
Embodiment two: referring to Fig. 2, Fig. 3; Present embodiment the heavy surely automatic loading system of mine skip; Different with embodiment one is, is provided with microprocessor control system promoting control cabin, and said programming controller is connected with microprocessor control system alternately; Programming controller output signal control linkage feeder 2 and lifting skip hoisting system, microprocessor control system comprises man-machine interface.
The heavy surely automatic loading system of mine skip of the present invention, under the condition of service of reality, the chamber design is accomplished than being easier to.Above former measure hopper, install the sealing floor additional, the belt feeder reach that extends, chamber design can be accomplished in main shaft skip bucket bottom reorientation girder steel position.But owing to plastic deformation, weather can cause the reasons such as creep of steel rope, so need the effective school of design claim system, elongate the error that causes to steel wire elasticity and proofread and correct.
The present inventionThe heavy surely automatic loading system of mine skip, the school claims that the system design principle is as shown in Figure 4: among Fig. 4 (a), below promoting skip bucket, a coal peace electronic scales 9 is installed, the foundation of claiming as the school.Fig. 4 (b) is that schematic diagram is claimed in the school, and among the figure, solid line is that the curve of the degree of depth and time, long dotted line are the curves of electronic scales reading and time.Suppose that electronic scales begins that reading is arranged when promoting the transferring the degree of depth and reach 460m of skip bucket 6.As time goes on, belt feeder 3 begins coal in promoting skip bucket, and it is big that the reading of electronic scales 9 also becomes thereupon.When reading reaches specified weighing value, stop belt and load.Subsequently, winch begins to promote skip bucket.And owing to loaded coal in the skip bucket, so got back to before 0 at the electronic scale reading, skip bucket does not promote, and variation has taken place in the degree of depth of hoist house indication (this value is produced by the rotation of head sheave).Transfer the difference between the degree of depth that the degree of depth and skip bucket leave electronic scales and be adjustment value.This adjustment value is proofreaied and correct through selecting different Hall detection probe.
Claims (3)
1. a mine skip weighs the automatic loading system surely; Comprise feeder, skip hoisting system, quantitative weighing device; Programming controller; It is characterized in that: the primary detecting element of said quantitative weighing device adopts Hall element, and said quantitative weighing device comprises magnet and one group or two groups of Hall elements arranged side by side, and each Hall element in the said Hall element group is installed in pit shaft one side successively; Magnet and Hall element correspondence are installed in and promote on the skip bucket said Hall element output signal linker controller; Programming controller output signal control linkage feeder, and send and stop and run signal to promoting control cabin.
2. the heavy surely automatic loading system of mine skip according to claim 1; It is characterized in that: be provided with microprocessor control system at the lifting control cabin; Said programming controller is connected with microprocessor control system alternately; Programming controller output signal control linkage feeder and lifting skip hoisting system, microprocessor control system comprises man-machine interface.
3. the heavy surely automatic loading system of mine skip according to claim 1 and 2; It is characterized in that: comprise belt transporter; Said feeder convey materials is to belt transporter, and the charge door of lifting skip bucket is corresponding under the setting of belt transporter spout and the reinforced state.
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| CN201110287113A CN102320513A (en) | 2011-09-26 | 2011-09-26 | Quantitative weighing and automatic loading system for mine skip |
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| CN201110287113A CN102320513A (en) | 2011-09-26 | 2011-09-26 | Quantitative weighing and automatic loading system for mine skip |
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| CN102636240A (en) * | 2012-04-12 | 2012-08-15 | 兖州煤业股份有限公司 | Quantitative loading method and system for mine lifting |
| CN103171907A (en) * | 2013-04-08 | 2013-06-26 | 中国瑞林工程技术有限公司 | Impact-preventing bucket ore loading device |
| CN109696230A (en) * | 2017-10-24 | 2019-04-30 | 中国水利水电第十二工程局有限公司 | Mine automatic gauge, the true order quantity device of output |
| CN110562552A (en) * | 2019-09-18 | 2019-12-13 | 安徽中烟再造烟叶科技有限责任公司 | overweight detection device and detection method for prepressing and packaging of reconstituted tobacco |
| CN114212557A (en) * | 2021-12-03 | 2022-03-22 | 山东东山新驿煤矿有限公司 | Constant volume protection device for quantitative hopper |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636240A (en) * | 2012-04-12 | 2012-08-15 | 兖州煤业股份有限公司 | Quantitative loading method and system for mine lifting |
| CN102636240B (en) * | 2012-04-12 | 2013-12-18 | 兖州煤业股份有限公司 | Quantitative loading method and system for mine lifting |
| CN103171907A (en) * | 2013-04-08 | 2013-06-26 | 中国瑞林工程技术有限公司 | Impact-preventing bucket ore loading device |
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| CN109696230A (en) * | 2017-10-24 | 2019-04-30 | 中国水利水电第十二工程局有限公司 | Mine automatic gauge, the true order quantity device of output |
| CN109696230B (en) * | 2017-10-24 | 2020-12-11 | 中国水利水电第十二工程局有限公司 | Automatic metering, outputting and determining goods quantity device for mine |
| CN110562552A (en) * | 2019-09-18 | 2019-12-13 | 安徽中烟再造烟叶科技有限责任公司 | overweight detection device and detection method for prepressing and packaging of reconstituted tobacco |
| CN114212557A (en) * | 2021-12-03 | 2022-03-22 | 山东东山新驿煤矿有限公司 | Constant volume protection device for quantitative hopper |
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Application publication date: 20120118 |