机械类文献翻译薄煤层综采设备的研制及工艺参数优化.docx

1、机械类文献翻译薄煤层综采设备的研制及工艺参数优化【外文文献】1The thin coal bed synthesis picks the equipment the development and the craft parameter optimizationMainly discussed the thin coal bed synthesis which Zaozhuang Mining industry Group Company independently developed to pick the equipment in Tian the Chen Kuang success a

2、pplication, and to its supplementary equipment technological transformations and the technical characteristic, the working surface geological condition, the synthesis picked the equipment the craft parameter optimization and the working surface working procedure reasonable match safeguard technology

3、 measure has carried on the thorough analysis and the introduction.Because the thin coal bed its mining space is narrow, the efficiency is low, the working surface condition is bad, machinery equipment not necessary or mining coal craft imperfect and so on technical questions, difficulty with realiz

4、es the mine pit highly effective and the safety in production. Zaozhuang Mining industry Group Company profits from the experience which my guozhong thick above coal bed synthesis picks, picked the supplementary equipment in the thin coal bed synthesis the development and the craft parameter optimiz

5、ation aspect has carried on the beneficial exploration.In October, 2003, ore 531 working surfaces equipped in its Tian the Chen has independently developed and the improvement three machines supplementary equipment, has obtained the tangible effect, realization maximum daily production 3504t, the av

6、erage month produced 89636t, created the roller thin coal bed synthesis to pick the unit to yearly produce 1,000,000 ton new levels.Equips this working surface equipment fund investment is 1088.10 Yuan, the equipment does not invest into the equipment coal plow surface 1/10. First, the synthesis pic

7、ks the three machines necessary and the technical characteristic (1) hydraulic pressure support According to the thin coal bed mining characteristic, uses the computer to carry on the movement analysis optimization and the intensity design to the support four link motion gears, satisfies the working

8、 condition, optimized the support structure: (1) support for the support shield type, has used the overall top-beam, two column supports has satisfied the big expansion and contraction request; (2) main structural element with the Q550 high strength structure steel plate manufacture, reduced the sup

9、port weight.Front uses welds preheating, after welds the artificial aging welding craft, the guarantee structural element welding quality; (3) selects the great current capacity hydraulic pressure part, enhances the support the speed of response; (4) reasonable arrangement hydraulic circuit system,

10、has enlarged the human, machine the space. Its development ZY2400/08/19 hydraulic pressure support technical characteristic is as follows: Two column support shield type, support 0.81.9m, support width 1.431.6m, center distance 1.5m, working resistance 2400kN, supports and protections intensity 0.41

11、0.46MPa, the adaptation inclination angle is not bigger than highly 35, operating mode for neighbour control, support weight 6500kg. (2) coal mining machine Unifies thin coal bed mining the technical characteristic, has carried on the transformation to the coal mining machine following several aspec

12、ts: (1) improvement design pump box, the solution gives off heat the question, satisfies the synthesis to pick the operation percentage high operating mode need; (2) designs a group of tapering spindle rocking shaft specially, causes the drum circle diameter to reduce, increases the leaf blade altit

13、ude correspondingly, does an inside job the quantity request satisfiedly; (3) optimized drum design, increases the leaf blade spiral angle of climbing reasonably, the improvement coaling effect; (4) decreases the fuselage suitably highly (824mm), coal mining machine each big joint place has made the

14、 corresponding improvement. After the transformation coal mining machine MG200-BW2 technical characteristic is as follows: Picks high scope 1.02.0m, the adaptation inclination angle is not bigger than 35, the adaptation coefficient of hardness f3.5, drum diameter 800/1000mm, machine surface altitude

15、 824mm, does an inside job measures 91mm, the hauling way for the non-chain hauling, biggest force of traction 250kN, hauling speed 06.14m/min, installing equipment power 200kW, voltage rank 660/1140V, machine gross weight 15t, machine total length 7858mm. (3) scraper conveyer Mainly has carried on

16、the transformation to the scraper conveyer in following several aspects: (1) has used in the thin coal bed scraper conveyer the double strand transmission structure, loses the coal condition to be able to improve; (2) home for the first time used middle the 22E trough section on the thin coal bed sc

17、raper conveyer, the complete machine rigidity, the intensity had enhances greatly; (3) reduces the nose, the airplane tail trough highly (is excessively 430mm), improved the coal mining machine to the nose, the airplane tail coal wall cutting condition; (4) strengthened the shovel board, the cable t

18、ank frame, the hauling platoon has sold and so on place the joint structure. After the transformation scraper conveyer SGZ-630/220 technical characteristic is as follows: Completed length 170m, the transportation measures 450t/h, the installing equipment power 2110kW, scraper chain fast 1.07m/s, tig

19、ht chain way for brake disc tight chain. Second, working surface geological condition The development synthesis picks the equipment ore 531 working surfaces to apply for the first time in Tian the Chen, the working surface moves towards the long wall type arrangement, moves towards the length is 950

20、m, the inclined length is 156m, coal bed thickness 0.43.0m, average 1.25m, coefficient of hardness f =2, the coal bed inclination angle 1015, average 13, reserves 283,400 t.Coal dust explosion index 31. 9%, is the strong explosive coal bed.The working surface has the mudstone false roof partially, t

21、hick 01.8m, soft easy to brave, its upside divides into the iron grey thin silicarenite, about its lower part lamination thick 1.5m for goes against directly, above for average thickness 33.5m, hard, the crevasse growth always goes against.The ledger wall partially has 0.10.4m charcoal mudstone, the

22、 direct bottom is the pessimistic siltstone, thick 2.6m, the ins and outs are the pessimistic novaculite, hard, the bedding is clear, thickness 16m. North 531 working surfaces are located five pick lower part the area, the track descends a mountain the left wing, ground table +45m, mine shaft elevat

23、ion - 722m-768m, the geological condition is complex, tunneling period exposition fault 8, above in which 1.0m fault 4, the F6 reversed fault dropping variance is 4.0m, also has strip width 20m, extends the 220m wash zone along the trend to pass through the entire working surface. Third, working sur

24、face craft parameter optimization The working surface reasonable craft parameter determination, is the synthesis picks the supplementary equipment to realize the working surface high production foundation. (1) section of deep choice The overall evaluation coal mining machine power, the anthrax coeff

25、icient of hardness, coal bed thickness and pick high, the roof jointing growth situation, the support press forcing crisp coal factor definite truncation depth and so on wall depth, support supports and protections way.Through analyzes the working surface geological condition and the equipment neces

26、sary situation earnestly, the definite truncation depth is 0.6m.When roof jointing growth, cave-in of sides of a mine tunnel serious, each knife tries to break up a fight when carries on supports and protects in advance, enhances the circulation per unit area yield. (2) coal mining machine hauling s

27、peed V determination (formula omitted) (3) supports and protections with moves a way Uses a neighbour operation, prompt supports and protections.In the mining coal machine cut from now on, first will move the support to support the roof, then will again move the conveyer.The union coal bed thickness

28、 grasping lengthening bar expands and contracts the scope, in order to and supports and protects the roof highly by the reasonable frame position.When roof situation permission, moves in turn and separates the frame to move to unify, guaranteed moves a speed to satisfy the coal mining machine coal c

29、utting speed, realizes continuously the fast coal cutting need. (4) coal mining machine feed way Uses the MG200-BW2 coal mining machine to fall the coal, unidirectional mining coal, middle bevelling feed.The first drum shears goes against the coal, the latter drum shears the bottom coal, from notchi

30、ng.Fourth, working surface working procedure match safeguard measureThe thin coal bed synthesis picks the working surface reasonable craft parameter the effective safeguard, mainly includes the working surface each transportation link the intercoordination and the over-load protection, the long dist

31、ance communication direction, the working surface “three straight one even” and the geologic structure control measure, coal mine has used the home most advanced TK-200 communication control system for this Tian the Chen, strengthened the working surface production management, had guaranteed the wor

32、king surface various working procedures best match, reduced the working surface failure rate large scale, enables the working surface operation percentage to achieve above 90%. (1) TK-200 communication control system application (1) system composition The TK-200 communication control system by the TK110 working surface controller, the TK120 power source, the TJ100 mineral product electric current detector set, the TK130 micro telephone, the TK130C multi-purpose telephones, the TK150 intelligent terminal, the TK150E intelligence coupler and the TK130-X five core belt shield mineral produ