764 刮板轉(zhuǎn)載輸送機結(jié)構(gòu)設(shè)計含開題及7張CAD圖,764,刮板轉(zhuǎn)載輸送機結(jié)構(gòu)設(shè)計含開題及7張CAD圖,轉(zhuǎn)載,輸送,結(jié)構(gòu)設(shè)計,開題,CAD 2006 Fourth Issue (Total 43 Issues) Published in December 2006 SHANXI ENERGY AND CONSERVATION Coal Face transport equipment Selection and introduction to selection of scraper transfer machine Abstract) Coal Face Selection of appropriate transport equipment for coal mining face has an important influence on the selection design of coal mining face, On the various introduces the technical characteristics, scope of application and how to select various types of scraper conveyors, scraper transfer machines, and retractable belt conveyors. Keyword) scraper transfer machine; selection; technical characteristics. 1、Coal Face transport equipment Selection Traction linked by the number and arrangement can be divided into single-scraper conveyor chain, bilateral links, double-center chain and the three links, and other four types. These bilateral links to various functions AFC Coal conditions, the use of a wider scope, the disadvantage is that there are two bilateral chain linked unforced absorbed phenomenon. Three bilateral links in the chain scraper conveyor developed on the basis of When the two chains not enough strength, an increase of a middle chain, the practice has proved that such a structure chain unforced absorbed form of the phenomenon than the bilateral chain scraper conveyor more serious, frequent broken link accidents, products are eliminated. Two-center chain-type compared with the bilateral links, the chain of uniform, bending performance advantages, but in the hard coal、 large coal circumstances of the larger transportation to perform well. Small scraper conveyor single chain of more, but with the large-diameter circle in the chain, the chain increased strength, the German use of large-diameter circle of chain-linked heavy AFC, this form of chain conveyor To bear the load in the same circumstances, than the double-stranded chain of specifications to be larger. a) Scraper conveyor of the transmission capacity must be equal to or greater than Shearer or the production capacity of coal plough. But Shearer face conveyor and the productive capacity of roadway with the mining area, transport roadway and upgrade the mines transport capacity of the infrastructure, the 2006 Fourth Issue (Total 43 Issues) Published in December 2006 SHANXI ENERGY AND CONSERVATION ability to prevent face-off, mining area or roadway and a lack of transport capacity “bottleneck” phenomenon. Scraper conveyor structure and form of traction Shearer, and walk-oriented institutions! Bracket and the end of Slipper of the supporting structure; b) Scraper conveyor length of the chute and hydraulic support to match the width; c) Scraper conveyor of the chute and hydraulic support the passage of the jack and connect devices with space to match; d) Conveyor of the chute to rugged wear-resistant structure, a flexible; e) In order to reduce broken link accidents, linked ring in the large-diameter, high-intensity direction; f) Priority choice of two-motor-driven double-nose, to reduce the transmission size, the largest chain to reduce tension, reducing the nose and tail of the top area of control. Selection of priority short nose and short tail, but the head-and tail-in or corner of the plate should not be too large to reduce the pressure in the chain block friction loss. 2、reversed loader selection of principle Bridge reproduced machine is actually a special structure of the heavy scraper conveyor, in the face conveyor section flat lane and scalable conveyor belt between the role of a reprint. a) Reprint of the transportation capacity to be slightly larger than face scraper conveyor. To this end use of increased chute section (on both sides of the chute and baffle), increase speed linked (to change the second-reducer gear transmission ratio) or shorten the distance between scraper, and other measures; b) Reprint of the gear in the nose of uniform, should be based on volume and distance to determine the size of the electrical power and the number of Taiwan. Priority should be optional single-motor drive, when the volume and greater distance, the optional dual-motor drive. Its transmission should try and face the same scraper conveyor to GM; 2006 Fourth Issue (Total 43 Issues) Published in December 2006 SHANXI ENERGY AND CONSERVATION c) Reprint of the aircraft tail and face the conveyor connected to the matching. A lap and non-overlap in two forms, regardless of what form, should ensure that face scraper conveyor nose of a certain height unloading (normally 600700 mm), in order to avoid face-scraper conveyor Linked to the end of coal; d) Reprint of the nose are loaded walk in the small car, walking the structure and gauge car with retractable belt conveyor tail-supporting; e) Reprint of the bridge deck and the Department of retractable conveyor belt of coal by the tail of the length of the overlap should be complementary; f) Machine parts and reproduced the face scraper conveyor should do everything possible to GM, to facilitate the supply of spare parts and maintenance. 3、Retractable belt conveyor of the principle of selection Scraper transport planes form the coal face, reproduced as bridge-to-trough uninstall the retractable belt conveyor, and then coal form flat lane transported to the section on the downhill or with the station. With the face of advancing to the section flat lane transport equipment to a more flexible elongate or shorten. Retractable belt conveyor is characterized by a set of certificates with its devices, this device from the temporary storage tape from the appropriate role, when the mobile tail, the reservoir with a corresponding device can be released or save a certain length of the belt. a) Mining machine with the transport section of flat lane general optional retractable belt conveyor, and its production capacity to match reprint machine. According to choose a suitable throughput with bandwidth and speed; b) Retractable belt conveyor for the laying of the general length of 5001000 m-Taiwan, when a length of two series can not. Can also choose multi-driven conveyor belt, the length of up to 20003000 m; c) Conveyor belt transmission device generally used double-drum drive, and priority should be optional single-motor drive, to avoid the load due to the electrical transmission equipment caused by the unequal distribution of power increases. When the single-motor power shortage # optional two-or three 2006 Fourth Issue (Total 43 Issues) Published in December 2006 SHANXI ENERGY AND CONSERVATION electrical transmission; d) Storage devices with the activities of a drum, two and three (corresponding certificates with a two-tier, four-tier and six-tier) should give priority to the simple structure of single-cylinder structure. If the reservoir with a shorter length of the warehouse, they can choose two or three roller structure; e) Tighten the structure of a device automatically tighten (adjustable tensioning force) and non-automatic tensioning device two categories, priority should be given to choose the former, to ensure that the tape is the appropriate tension; f) Transmission drum machine or a head band of anti-skid tape and driving drum 9 skid) security installations and non-security devices are to choose the former, in order to prevent the tape skid cause serious damage or excessive temperature rise caused by adhesive tape on fire Incidents. Ordinary canvas with a belt and high-strength nylon with two batteries, should try to choose the latter, to reduce the thick belt, increasing distance. Tape a general belt and fire tape, the latter should be used to prevent fires. g) Shift the tail installed with hydraulic and electric winch-and Fully-supporting, a pumping station system for emulsion priority should choose the former, no pumping station system can choose the latter; h) Retractable belt conveyor by the tail on the length of the form and structure to be reproduced with the bridge of the bridge and walk the length of the overlapping structure of the Department of match; i) Retractable plastic belt conveyor structure of the body-hanging wire rope, steel Hanging-beam steel frame and floor-variety. Type of steel wire rope hanging with little, simple equipment, suitable for floor changes, easy to water conditions, but the operation to shorten the tail relatively trouble. Steel-framed floor-simple structure, demolition of convenience, is conducive to the use and maintenance, but the fuselage large amount of steel used, the floor changes have an impact on the rack, under specific circumstances appropriate choice. In the same time, the laying and installation plan of scraper reloader should be made according to the specific conditions of the mine, but it is 2006 Fourth Issue (Total 43 Issues) Published in December 2006 SHANXI ENERGY AND CONSERVATION generally carried out according to the following steps and methods： 1. First, the tail is placed under the head of the working face conveyor, and then the bottom scraper chain is passed through the middle plate of the tail and then lapped on the tail sprocket. 2. Then lap the long scraper chain from the tail section by section, and lay the middle groove of the horizontal section, (at this time, no cable groove) at the same time, put the bottom scraper chain into the bottom groove of the middle groove, and connect the middle groove with dumbbells. 3. When connecting with the crusher, it is also possible to use the connecting dumbbells and splints to connect well. 4, the laying of grooves, convex grooves and climbing section of the bridge groove, according to the required height can be temporarily erected with square wood, and at the same time, the bottom scraper chain section by section into the lower groove. 5. Install the nose transmission part and self-moving device on the tail of the belt conveyor. 6. the bottom groove scraper chain from the aqueduct and the nose plate under the lead, bypassing the nose sprocket on the sprocket. 7. Connect the long scraper chain from the tail of the aircraft and put it into the upper chain path until the nose of the aircraft. 8. Install all hydraulic systems. 9. Install the chain tightening device to tighten the chain. 10. Install cable troughs and electrical systems. 11. If it is inconvenient to transport during installation, the head transmission device can be removed and transported into the well for re-assembly, but attention should be paid to protecting the exposed shaft head, flange stop and other parts to prevent dirty and damage. After installation, the scraper transfer machine should be tested and run to prevent dirty and damage. 2006 Fourth Issue (Total 43 Issues) Published in December 2006 SHANXI ENERGY AND CONSERVATION 1、Before the test run should check 1.1. Check whether the electrical signal device, communication and lighting work normally. 1.2. Check whether the oil injection amount of the reducer is correct, and whether all the lubrication parts have been fully lubricated. 1.3. Check whether there are any missing metal materials or tools on the scraper transfer machine. 1.4. Check whether the hydraulic pipelines are well connected and whether there is leakage. 2、When the machine is idling should be careful 2.1 Check whether the operation of the electrical control system is correct. 2.2. Check whether the reducer and hydraulic coupler are leaking, abnormal sound and overheating. 2.3. Check the operation of the scraper chain and see if there is any phenomenon of stuck chain. Whether the scraper chain over sprocket meshing is normal, whether the tightness is appropriate, whether the scraper is installed in reverse, whether the bolts are loose. 2.4. Check the coordination performance of the electrical system of the crusher. 3、The scraper transfer machine should pay attention to the normal operation. 3.1. The reducer and motor and other transmission devices of the conveyor shall be kept clean to prevent overheating, otherwise it will cause damage to bearings, gears, motors and other parts. 3.2, the chain must have the appropriate pre-tightening force, the general head sprocket under the link relaxation for two pitch is appropriate (that is, slightly droop). 3.3. The transfer machine should avoid empty load operation to reduce wear and do not reverse without special circumstances. 2006 Fourth Issue (Total 43 Issues) Published in December 2006 SHANXI ENERGY AND CONSERVATION 3.4 Oil lubrication shall be carried out according to the specified position, oil type and time. 3.5. The transfer machine is strictly prohibited to transport non-coal materials. When cape pushing high-grade coal face in the course of mining, will often encounter some fault ramps National Chiao Tung University (H3m)-not pushing too hard, making a face similar to the fault system between the “triangle”-shaped pillar, the pillar under the triangular Fault can be divided into the direction of “being” triangle and the “inverted” triangle of two. More recycling of coal resources, the inverted triangle coal-mining, are often used along the fault trend, retaining a fault-coal, transport, dig a supplementary entry, face additional transport along the roadway normal progress, but added the roadway and transport planes To retain a mining method, that is reproduced after the maintenance of mining. It is the most important feature: the direction of promoting the face of coal and reprint the opposite direction. The dig-mining technology to the maintenance of mining after another development, it mainly refers to one side of boring mining Lane added transport, mining technology is a supplement. 1 After the set of maintenance and exploitation of the significance of the dug-mining applications The work in front of the National Chiao Tung University inclined to expose fault, not hard-pushed the inverted triangle formed coal-mining, there are two under the conventional mining method: wear-mining and mining. Will often result in-prone forward, the old waste pond falling keep up with all the top row, back-to bring greater difficulty and lower efficiency. When the old pond and a hanging roof suddenly falling, it will cause massive waste overturned cut the top row pillars, a spray men Zi phenomenon, to bring greater security threat. So for mining, mining face prone to a certain level will not be able to continue to promote the coal recovery rate is not high. The recovery of lower coal mining wear, can only reach 60 percent, the same need to fill the excavation, Lane added, using artillery and 2006 Fourth Issue (Total 43 Issues) Published in December 2006 SHANXI ENERGY AND CONSERVATION mining will consume a large amount of explosives, detonators high costs, risks, prevention-management is also very difficult, there More hidden dangers. By comparison, a reprint after the maintenance of mining coal mining face can guarantee the normal advance, and can increase the recovery rate, the districts high yield and high efficiency to promote the building of a higher value. Under normal circumstances, reproduced in the former mining machine after maintenance, ahead of meeting the need to add the roadway excavation and the laying of good reproduced directly to the recovery teams used, which would involve tunneling unit of energy, the occupation of certain human, material and Supporting material from consideration, construction of the tunnel boring the general-shelf support, and a steel support. In the latter role in maintaining pressure on the roadway, the steel roof will be a lot deformation, it is difficult to retracement, but can not reuse, then try the coal-mining teams from their own side tunneling transport Lane added, while maintaining a post-mining method, that is Mining excavation techniques. Construction used hydraulic prop legs to replace the steel shelf-shelf support, a flexible support, reducing the pressure on the roadway, improve the supporting effect. 2 Reprint after the maintenance of the technical requirements of mining With the face forward, added the roadway, while retaining the support not back, on top of the alley, along the direction of the dumping Dou reservations Face the bottom of the first three rows of regular pillars. To reduce air-side of falling coal pillars of pushing pressure, three rows of stranded in a timely manner to the use of hinged roof beam to the pillars, roof beam along the tendency to use the hinged support, a pillar of the reform may not be behind all face Top ranked. After the maintenance of Zhu Liang to set up, the first branch after the change, post-wear sawdust established to reduce the latter part of the pillars of the end of drilling. Reprint of the above two rows of pillars as sidewalks, width of 1.0m, the spacing between the two groups pillar beam to 1.0m, install the last row of column beams and columns to file additional intensive pillars to prevent 2006 Fourth Issue (Total 43 Issues) Published in December 2006 SHANXI ENERGY AND CONSERVATION channeling rock. After the maintenance period to reduce the pillars of the deformation, to facilitate the work of retracement along the roadway after the maintenance of the pillars of install the last row of column beams and located at 8m with a wood pile to strengthen support and maintenance of the roadway after the hand for cleaning up to ensure that the roadway Height of not less than 1.6m. Development prospects With the emergence of the importance of coal resources, China should improve the coal mining machinery and equipment while increasing the coal out put. For now, the traditional mechanical coal mine has been difficult to meet the needs of coal mining, mechanical and electrical integration in coal mine machinery is more and more shows the unique advantages, the application of coal mine machinery electromechanical integration innovation can greatly enhance the level of the original coal mine machinery operation, make the coal resources mining and transportation development towards the direction of the electromechanical integration and development of the coal resources can be more efficiency and also can enhance the security guarantees. Increasing coal output is the need of sustainable development of Chinas national economy. It is the need of social development to realize coal mine modernization as soon as possible. Realizing the modernization and intelligentization of coal mine machinery and equipment is the hot demand of coal miners. Coal mine machinery manufacturing technology is continuously from the traditional manufacturing technology development of advanced manufacturing technology, the operation of the intelligent system is also an emerging technology, the advantages of its own to make the use and development of the field is constantly expanding, the intelligent application in coal mine machinery also has infinite productivity, so you should pay attention to the organic combination of the new science and technology, guarantee the operation of coal mine machinery can be more accurate and intelligent control system, make the coal mine machinery equipment can run more harmonious, make its in the mining of coal resources get effective use, in raising the yield of coal resources at the same time also can greatly enhance the safety and reliability. The integration here refers to the integration of the functions of mechanical equipment, that is, to realize the 2006 Fourth Issue (Total 43 Issues) Published in December 2006 SHANXI ENERGY AND CONSERVATION integration of multiple functions of a device. Coal mine machinery and equipment how to develop, become a matter of the rise and fall of the coal industry is the most important. The flexible activation of mining machinery and equipment refers to the strong adaptability of mechanical equipment, a mechanical equipment can adapt to a variety of complex geological conditions and mine production conditions. If the mining machinery and equipment can be activated, the production capacity of the coal mines with poor conditions will be greatly excavated, thus improving