CN103233731B - Coal cutting method with multiple demonstration knifes - Google Patents
Coal cutting method with multiple demonstration knifes Download PDFInfo
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- CN103233731B CN103233731B CN201310128882.5A CN201310128882A CN103233731B CN 103233731 B CN103233731 B CN 103233731B CN 201310128882 A CN201310128882 A CN 201310128882A CN 103233731 B CN103233731 B CN 103233731B
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- 239000003245 coal Substances 0.000 title claims abstract description 183
- 238000005520 cutting process Methods 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Abstract
The invention discloses a coal cutting method with multiple demonstration knifes, which comprises: the step (1): a coal cutter carries out coal cutting for the coal mining working face with the first i demonstration knife, wherein, i=1, 2,...m, and the coal cutter adjusts the cutting position and cutting direction according to the top and the bottom of the coal mining working surface; step (2): if the coal cutting locus of the coal cutter does not contact the top or bottom of the coal mining working surface, the coal cutting track of the ith demonstration knife is obtained, and if the coal cutting track of the coal cutter contacts the top or bottom of the coal mining working surface, the step (1) is repeated; the step (3): the step (1) and the step (2) are repeated, and the coal cutting tracks of the i+1-n demonstration knife of the coal cutter are obtained, wherein the n>m; the step (4): the coal cutter uses the coal cutting tracks of the i-n demonstration knifes as a memory coal cutting cycle, and carries automatically circulated coal cutting on the coal mining working face. The method provided by the invention carries out memory coal cutting by multiple demonstration knifes, thereby effectively reducing the influence on memory coal cutting caused by single demonstration knife, and minimizing cutting of rocks at the coal mining working face bottom, improving the coal cutting effect, and improving the coal cutting stability.
Description
Technical field
The present invention relates to a kind of cutting coal method, particularly relate to a kind of many demonstration cutter memory cutting coal methods.
Background technology
Along with improving constantly of coal mining mechanization degree, coal-winning machine is used widely in progress of coal mining, the working environment of coal mining is complicated severe, especially in the recovery process of thin seam working surface, coal-winning machine operating personnel are handicapped, and the moment follows coal-winning machine operation will significantly increase the labour intensity of operating personnel.
Generally adopt single demonstration cutter memory cutting coal method to carry out automatic tapping to coal to coal seam, to reduce the labour intensity of operating personnel in existing progress of coal mining for this reason.So-called single demonstration cutter memory cutting coal method refers to that operating personnel operate coal-winning machine and first cut a demonstration cutter along work plane coal seam, coal-winning machine by parameters such as the lead of this demonstration cutter, angles stored in computer, carrying out since then is mined automatically, and is automatically adjusted by the memory parameter of Computer Storage.Particularly, lancinate in coal process in single demonstration, operating personnel want the moment ceaselessly to observe the coal cutting situation of coal-winning machine, find that there is and cut top, coal mining machine roller height will be adjusted in time when cutting the end, to ensure, part of cutting is all for coal seam, such one lancinates, coal mining machine roller is always ceaselessly among adjustment, such is cut a cutter coal operating process exemplarily cutter, and when next lancinates coal, the cylinder of coal-winning machine repeats demonstration and to lancinate coal height and angle, automatically completes the operating process of demonstration cutter.
But, when reality memory coal cutting process, cut the position that each cutter coal all ceaselessly will adjust coal mining machine roller, to ensure that coal cutting effect reaches requirement, and the coal cutting operating process of demonstration cutter can not be repeated simply.So-called " demonstration cutter " in practice is non-existent, and operating personnel's error of occurring in the cylinder position process of adjustment demonstration cutter is gone down by unlimited circulation, affects coal cutting effect.Such as, when operating personnel adjust demonstration cutter, there is the error of downward 200mm in a certain position cylinder, and height and the angle of demonstration cutter also will be repeated when same position is cut in automatic Memory coal cutting, namely cylinder also adjusts 200mm downwards by automatically repeating demonstration cutter, so, coal-winning machine will not have the position in coal seam to continue cutting exploitation, visible, hilted broadsword memory cutting coal method can amplify the error effect of demonstration cutter, seriously have impact on the lasting exploitation in coal seam.
Summary of the invention
For prior art Problems existing, the object of this invention is to provide much more a kind of demonstration cutter memory cutting coal method, the method can reduce to remember in coal cutting process the error that cutter introduces of demonstrating, and improves coal cutting effect.
Technical purpose of the present invention is achieved through the following technical solutions:
A kind of many demonstration cutter memory cutting coal methods, comprise the steps:
Step is 1.: coal-winning machine carries out the i-th demonstration to coal-face and to lancinate coal, described i=1, and 2 ... m, lancinates in coal process in the i-th demonstration, and described coal-winning machine is according to the position adjustment cutting position of the top and bottom of coal-face and cut direction;
Step is 2.: if the coal cutting track of coal-winning machine does not touch the top and bottom of coal-face, then coal-winning machine obtains the i-th demonstration and to lancinate the track of coal, if the coal cutting track of coal-winning machine touches top or the end of coal-face, then repeats step 1.;
Step is 3.: repeat step 1. with step 2., obtain coal-winning machine i-th+1 ~ n demonstration and to lancinate the track of coal, described n>m;
Step is 4.: described coal-winning machine is a memory coal cutting circulation with the lancinate track of coal of i-th ~ n demonstration, carries out automatic cycle coal cutting according to described memory coal cutting circulation to coal-face.
Further, i-th ~ n demonstration of described coal-winning machine is lancinated in coal and automatic cycle coal cutting process, and the coal thickness that often lancinates is t.
Further, before coal-winning machine carries out coal cutting to coal-face, scraper plate drives described coal-winning machine towards coal-face direction displacement t.
Further, the coal thickness t that often lancinates is 0.8m.
Further, step 3. in, described n=3 ~ 5.
Further, step 3. in, described n=3.
Further, step 4. in, described coal-winning machine circulation automatic coal cutting in travel speed be 10m/min ~ 12m/min.
Further, described coal-winning machine is cut sth. askew from one end of coal-face feed.
The present invention carries out memory coal cutting, the impact that the error significantly reducing single demonstration cutter is brought to memory coal cutting by adopting many demonstration cuttves, decreases tapping coal-face top bed rock stone, improves coal cutting effect, improve the stability of coal cutting.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of preferred many demonstration cutter memory cutting coal methods of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, a preferred embodiment of the present invention is described in detail.
As shown in Figure 1, the invention provides a kind of many demonstration cutter memory cutting coal methods, the method comprises the steps:
Step is 1.: coal-winning machine carries out the i-th demonstration to coal-face and to lancinate coal, described i=1, and 2 ... m, lancinates in coal process in the i-th demonstration, and described coal-winning machine is according to the position adjustment cutting position of the top and bottom of coal-face and cut direction;
Step is 2.: if the coal cutting track of coal-winning machine does not touch the top and bottom of coal-face, then coal-winning machine obtains the i-th demonstration and to lancinate the track of coal, if the coal cutting track of coal-winning machine touches top or the end of coal-face, then repeats step 1.;
Coal-winning machine from a termination of coal-face walk another termination process coal mining machine roller rotate coal cutting, need constantly up-down adjustment cylinder to ensure not cut the top and bottom of coal-face according to the position of the top and bottom of coal-face during coal-winning machine coal cutting, the running track forming the walking limit coal cutting of coal-winning machine limit is thus coal cutting track, coal cutting track is actually the height of coal-winning machine that coal-winning machine the writes down cylinder when work plane diverse location relative to coal-winning machine, it relates generally to two parameters, one is that coal-winning machine is in the position of work plane and direction, two be coal-winning machine when relevant position coal cutting coal cutting cylinder relative to the height of coal-winning machine.
Step is 3.: repeat step 1. with step 2., obtain coal-winning machine i-th+1 ~ n demonstration and to lancinate the track of coal, described n>m;
Step is 4.: described coal-winning machine is a memory coal cutting circulation with the lancinate track of coal of i-th ~ n demonstration, carries out automatic cycle coal cutting according to described memory coal cutting circulation to coal-face.
The present invention is by the coal cutting track of memory i-th ~ n demonstration cutter, each knife roller position monitored by coal-winning machine, the roller height parameter that memory coal machine any position in work plane is corresponding, thus when carrying out automatic cycle coal cutting, coal-winning machine can adjust roller height by memory based cylinder track automatically, realize automatic coal cutting, in addition, the present invention can also compensate preferably by the change of optimum configurations to work plane regularity.
As a preferred embodiment of the present invention, above-mentioned steps 3. in, n=3 ~ 5, in order to save manual operation demonstration cutter cost, the n of the present embodiment is preferably 3.Such as, coal-winning machine operating personnel utilize coal-winning machine to carry out 3 cuttves demonstrations and to lancinate coal, 3 cuttves demonstrations are lancinated in coal process and are carried out manual intervention to coal cutting track, constantly adjust the height of cylinder and angle with the top and bottom making coal cutting track not touch coal-face, namely obtain 3 and to lancinate coal track; Then start the automatic coal cutting program of coal-winning machine, coal-winning machine successively with this 3 lancinate coal track be one memory coal cutting circulation, and according to such memory coal cutting circulation automatic cycle coal cutting is carried out to coal-face, until complete the exploitation of this work plane.Coal-winning machine of the present invention forms the coal cutting geometric locus of continuous dipping and heaving change in the process of each cutter coal of cutting, and the curve of each cutter coal is all different, demonstration cutter memory coal cutting is in fact revise coal-winning machine to demonstrate the oscillating curves of the coal-winning machine fuselage lancinated in coal process, when carrying out memory coal cutting, cylinder is revised according to the demonstration coal track that lancinates, on coal-winning machine machine, lower part of the body oscillating curves and the demonstration coal geometric locus that lancinates is different, demonstration cutter is more, different fair curves is more, and these fair curves are superimposed, a fair curve consistent with seat earth will be formed on the whole, thus ensure that overall coal cutting effect.Therefore, according to actual needs, memory coal cutting of the present invention circulation can comprise more demonstration and to lancinate the track of coal, the described memory coal cutting demonstration cutter comprised that circulates is more, the stability of coal cutting general effect is better, and more demonstration cutter can reduce the rock amount at the bottom of tapping work plane top as much as possible, improve coal mining efficiency.
As a preferred embodiment of the present invention, i-th ~ n demonstration of coal-winning machine of the present invention is lancinated in coal and automatic cycle coal cutting process, the coal thickness that often lancinates is t, successfully the coal seam of work plane is cut further to enable the cylinder of coal-winning machine, before coal cutting is carried out to coal-face, scraper plate drives described coal-winning machine also correspondingly towards coal-face direction displacement t, and preferably, the coal thickness t that often lancinates is 0.8m.Certainly, above-mentioned coal-winning machine coal cutting thickness is a preferred embodiment of the present invention, the present invention can also according to actual needs and specification of equipment select be applicable to speed and thickness, repeat no more herein.
Consider the hardness in coal seam, in order to ensure steadily carrying out of incising coal seam, step 4. described in coal-winning machine circulation automatic coal cutting in travel speed be preferably 10m/min ~ 12m/min, when travel speed is greater than 12m/min, support can be caused to try to stop people from fighting each other do not catch up with or try to stop people from fighting each other not in place, and monitoring remote video personnel control is not in place, when travel speed is less than 10m/min, coal mining efficiency can be caused to reduce.Certainly, above-mentioned coal-winning machine travel speed is a preferred embodiment of the present invention, the present invention can also according to actual needs and specification of equipment select be applicable to speed and thickness, repeat no more herein.
In memory coal cutting process, the cylinder of coal-winning machine of the present invention is preferably cut sth. askew from one end of coal-face feed, then activate automatic coal cutting function, need before automatic coal cutting to input in parameters of mining face: work plane zero point, face length, location of going slowly, maximal rate and coal-winning machine current location; Input in automatic parameter: maximum mining height, maximum planted agent amount, minimum planted agent amount, mining height restriction and planted agent measure restriction and not play a role location; Additional parameter, correction, wait cylinder, mining height and planted agent can also be selected to measure limits value etc., can start automation coal cutting function after completing setting, coal-winning machine carries out automatic cycle coal cutting according to demonstration cylinder position data stored in coal process of lancinating.The face length that such as works is the coal seam of 300m, and feed section of wherein cutting sth. askew is 30m, mining thickness 5m, and the coal thickness that often lancinates is 0.8m, then coal-winning machine every cutter coal coal cutting volume is 300m × 5m × 0.8m, and wherein, automatic coal cutting volume is 270m × 5m × 0.8m.
When coal cutting remembered by the list demonstration cutter of prior art, memory coal cutting can only be remembered reluctantly and cuts a cutter coal, just must carry out demonstration again to lancinate coal, otherwise coal-winning machine seriously will cut top or the end and causes Coal Quality Decline and cause roof and floor uneven, finally cause automatic Memory coal cutting to proceed again, and adopt many demonstration cutter memory cutting coal methods of the present invention can ensure that coal-winning machine takes memory coal cutting mode to carry out the automatic coal cutting that circulates all the time.
Above-described embodiment is used for illustrative purposes only; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also should belong to category of the present invention, and scope of patent protection of the present invention should be limited by each claim.
Claims (8)
1. a cutting coal method remembered by cutter of demonstrating more, and it is characterized in that, the method comprises the steps:
Step is 1.: coal-winning machine carries out the i-th demonstration to coal-face and to lancinate coal, described i=1, and 2 ... m, lancinates in coal process in the i-th demonstration, and described coal-winning machine is according to the position adjustment cutting position of the top and bottom of coal-face and cut direction;
Step is 2.: if the coal cutting track of coal-winning machine does not touch the top and bottom of coal-face, then coal-winning machine obtains the i-th demonstration and to lancinate the track of coal, if the coal cutting track of coal-winning machine touches top or the end of coal-face, then repeats step 1.;
Step is 3.: repeat step 1. with step 2., obtain coal-winning machine i-th+1 ~ n demonstration and to lancinate the track of coal, described n>m;
Step is 4.: described coal-winning machine is a memory coal cutting circulation with the lancinate track of coal of i-th ~ n demonstration, carries out automatic cycle coal cutting according to described memory coal cutting circulation to coal-face.
2. many demonstration cutter memory cutting coal methods according to claim 1, it is characterized in that, i-th ~ n demonstration of described coal-winning machine is lancinated in coal and automatic cycle coal cutting process, and the coal thickness that often lancinates is t.
3. many demonstration cutter memory cutting coal methods according to claim 2, it is characterized in that, before described coal-winning machine carries out coal cutting to coal-face, scraper plate drives described coal-winning machine towards coal-face direction displacement t.
4. many demonstration cutter memory cutting coal methods according to claim 2, it is characterized in that, the coal thickness t that often lancinates is 0.8m.
5. many demonstration cutter memory cutting coal methods according to claim 1, is characterized in that, step 3. in, described n=3 ~ 5.
6. many demonstration cutter memory cutting coal methods according to claim 5, is characterized in that, step 3. in, described n=3.
7. many demonstration cutter memory cutting coal methods according to claim 1, is characterized in that, step 4. in, the travel speed of described coal-winning machine in the automatic coal cutting of circulation is 10m/min ~ 12m/min.
8. many demonstration cutter memory cutting coal methods according to claim 1, is characterized in that, described coal-winning machine is cut sth. askew from one end of coal-face feed.
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| CN201310128882.5A CN103233731B (en) | 2013-04-15 | 2013-04-15 | Coal cutting method with multiple demonstration knifes |
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| CN103233731B true CN103233731B (en) | 2015-04-22 |
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Families Citing this family (4)
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| CN108491360B (en) * | 2018-02-26 | 2022-04-01 | 北京天玛智控科技股份有限公司 | Coal mining amount calculation method |
| CN111810149B (en) * | 2020-07-13 | 2022-05-20 | 神华神东煤炭集团有限责任公司 | Lifting and lying control method for fully mechanized mining face with super-large mining height, storage medium and electronic equipment |
| CN112943241B (en) * | 2021-01-25 | 2024-02-27 | 三一重型装备有限公司 | Automatic cutting control method, device and system for coal mining machine and storage medium |
| CN113803069B (en) * | 2021-09-26 | 2023-01-17 | 中国矿业大学 | Teaching-memory-free cutting system and method for intelligent fully-mechanized caving face coal mining machine |
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