CN112320212A - Mechanized continuous quick belt replacing device and process for main inclined shaft belt conveyor - Google Patents
Mechanized continuous quick belt replacing device and process for main inclined shaft belt conveyor Download PDFInfo
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- CN112320212A CN112320212A CN202011254999.4A CN202011254999A CN112320212A CN 112320212 A CN112320212 A CN 112320212A CN 202011254999 A CN202011254999 A CN 202011254999A CN 112320212 A CN112320212 A CN 112320212A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/60—Arrangements for supporting or guiding belts, e.g. by fluid jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/44—Belt or chain tensioning arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
- B65G39/10—Arrangements of rollers
- B65G39/12—Arrangements of rollers mounted on framework
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/04—Control devices, e.g. for safety, warning or fault-correcting detecting slip between driving element and load-carrier, e.g. for interrupting the drive
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The belt is provided with a belt clamping device of the belt conveyor, a broken belt catcher of the belt conveyor, an upper carrier roller of the belt conveyor and a lower carrier roller device of the belt conveyor, a vulcanization platform is arranged below the belt, a crawler traction continuous belt changing device II and a crawler traction continuous belt changing device I are further arranged, and an old belt temporary transition support and an old belt recovery device are arranged beside a crawler traction continuous belt changing device support. During the construction preparation period, the new belt is vulcanized on the ground to form a whole, two caterpillar band traction continuous belt changing devices are operated near a wellhead room, the old belt drives the new belt to lay the new belt, the old belt is automatically recovered, the belt is tensioned finally, the belt conveyor is put into test operation under no load, and the belt of the main inclined shaft belt conveyor is changed more quickly, more efficiently, more economically, reasonably, more safely and reliably.
Description
Technical Field
The invention relates to the technical field of construction processes of engineering machinery, in particular to a device and a process for mechanically, continuously and quickly replacing a belt of a main inclined shaft belt conveyor.
Background
The main inclined shaft belt conveyor is key equipment for mine transportation operation, the belt is an important component of the belt conveyor, and the belt needs to be replaced after being used for a certain period of time due to long-time running abrasion and natural aging of rubber. The belt replacement is a great problem which is always difficult to wind coal mine installation personnel for many years, and if the problem is not solved, the large slipping accident is easy to generate, and great safety risk and economic loss are brought to construction units. And the construction cycle directly determines the down-hole face downtime, so the shorter the belt change time the better. The belt conveyor of the main inclined shaft of the minor hectic coal mine of Shaanxi Hua electric elm horizontal coal electric finite responsibility company undertakes the important task of the main lifting of the whole mine. The belt conveyor is DTL180/420/4 multiplied by 2000S in model, is driven by four-wheel drive frequency conversion, is centrally controlled by a PLC and a computer, has the bandwidth of 1800mm, the strength of a conveying belt ST6300N/mm, the thickness of a new conveying belt is 35mm, the unit weight of the conveying belt is 133kg/m, the belt speed is 5m/S, the inclination angle is 14-16 degrees, the total length is 1425m, and the conveying capacity is 4200t/h, and the system adopts a Huaning KTC101 protection system and is provided with belt protection such as coal piling, temperature, smoke, speed, deviation, longitudinal tearing, belt breakage, overtemperature water sprinkling and the like. The belt vulcanization adopts a four-step lap joint mode, the lap joint length is 1100mm, and the vulcanization length is 7200 mm. A total of 16 vulcanised joints are required. At present, the production of a construction unit needs the shutdown maintenance of a mine, the existing steel wire rope core belt is replaced by 3000m, and the steel wire rope core belt is recycled. Therefore, the mine requires early production recovery, maximally shortens the installation period and improves the engineering quality.
One or more bundles (according to the space of the tail of the main inclined shaft) are loaded on the ground and conveyed to the tail of the main inclined shaft, if the space is enough to be vulcanized into a whole, after the mining side stops production, an old belt is cut off at the tail, then a vulcanization platform is set up, a new belt and an old upper belt are closed into a gantry, a belt conveyor is started, the old upper belt is used for driving the new belt, and meanwhile, the old lower belt is pulled backwards and recovered at the tail. And (5) after the new belt is completely laid, closing the new belt into a gantry at the tail. After the belt is tested, the old belt is conveyed to the upper wellhead by adopting a method of taking the old belt by the new belt, or the old belt is loaded on a truck and is transported to the upper wellhead. This method is the most common one. The defects are that the transportation of the new belt and the old belt up and down the shaft is limited by a mine transportation work area, and meanwhile, a machine tail needs a larger space to store the new belt and the old belt. Or cutting off the lower belt of the old belt at the machine head, vulcanizing the new belt and the lower belt of the old belt, starting the belt conveyor to drive or connecting and fixing the new belt and the old belt by using traction equipment such as a column returning machine, a winch and the like or a belt board card, pulling the upper belt upwards, recovering the old belt from the machine head, and lowering the new belt of the lower belt downwards. The method is used carefully, and the belt is prevented from slipping in the lowering process.
In conclusion, how to complete the replacement of the belt of the main inclined shaft belt conveyor more quickly, more efficiently, more economically, more reliably and more safely is a very worthy of research, and the establishment of the installation process is a technical problem to be solved by the technical field personnel.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a device and a process for mechanically, continuously and quickly replacing a belt of a main inclined shaft belt conveyor, which are convenient to operate and good in effect.
The invention is realized by the following technical scheme: a belt device for mechanically and continuously and quickly replacing a belt of a belt conveyor of a main inclined shaft comprises a machine head driving roller I, a machine head direction-changing roller I, a machine head driving roller II, a machine head direction-changing roller II, a wellhead direction-changing roller, a machine tail tensioning roller, an ascending belt and a descending belt, wherein a belt conveyor clamping device, a belt conveyor broken belt catcher, a belt conveyor upper supporting roller and a belt conveyor lower supporting roller device are arranged on the ascending belt and the descending belt, a hydraulic plate card and a self-made plate card are arranged at the belt conveyor clamping device, the wellhead position and the belt conveyor broken belt catcher, a vulcanizing platform is arranged at the position, below the belt, outside the wellhead position, a caterpillar traction continuous belt changing device support is arranged at the wellhead wall, a caterpillar traction continuous belt changing device II and a caterpillar traction continuous belt changing device I are respectively arranged at the wellhead wall and the caterpillar traction continuous belt changing device support, an old belt temporary transition support and an old belt recovery device are arranged beside the caterpillar traction continuous belt changing device support, and a vulcanized new belt is placed below the old belt temporary transition support.
It further comprises the following steps: the belt conveyor belt clamping device is provided with a hydraulic plate card I, a hydraulic plate card II, a self-made plate card I and a self-made plate card II, a self-made plate card III and a self-made plate card IV are arranged at a wellhead position, and a self-made plate card V and a self-made plate card VI are arranged at the belt conveyor belt breaking catcher.
The caterpillar traction continuous belt changing device I comprises a caterpillar traction continuous belt changing device upper clamping caterpillar I, a caterpillar traction continuous belt changing device lower clamping caterpillar I, a caterpillar traction continuous belt changing device upper belt locking mechanism I and a caterpillar traction continuous belt changing device upper belt locking mechanism I, and the caterpillar traction continuous belt changing device II comprises a caterpillar traction continuous belt changing device upper clamping caterpillar II, a caterpillar traction continuous belt changing device lower clamping caterpillar II, a caterpillar traction continuous belt changing device upper belt locking mechanism II and a caterpillar traction continuous belt changing device upper belt locking mechanism II.
The construction method for mechanically and continuously and quickly replacing the belt device of the main inclined shaft belt conveyor comprises the following steps:
s1, preparing before construction, vulcanizing a new belt 12 on the ground and conveying the belt to a position near a wellhead room, installing a caterpillar traction continuous belt changing device support 21, an old belt temporary transition support 11, an automatic winding belt recovery device 10, a caterpillar traction continuous belt changing device I40, a caterpillar traction continuous belt changing device II 41 and a vulcanization platform 23, and installing a hydraulic plate card and an autonomous plate card II at a belt clamping device 29, a wellhead position 30 and a wellhead broken belt catcher 35 of a belt conveyor;
s2, cutting off the old belt, enabling the upper old belt to penetrate through the belt changing device, vulcanizing the lower old belt and the new belt, starting the hydraulic board card and the self-made board card, keeping the old belt, and cutting off the old belt 6 at the vulcanizing platform 23;
s3, laying a new belt, recycling the old belt, removing the vulcanizer after the old and new belts are vulcanized, loosening 2 pairs of hydraulic plate cards and 6 pairs of self-made plate cards at the position of the belt clamping device 29, the wellhead position 30 and the broken belt catcher 35, starting the caterpillar traction continuous belt changing device I40 and the caterpillar traction continuous belt changing device II 41, and continuously laying the new belt while the old belt is provided with the new belt;
s4, retaining the new belt, cutting off the new and old belt joints, drawing out the residual old belt, combining the gantry with the new belt, determining the vulcanization position when the new and old belt joints 38 run above the vulcanization platform 23, cutting off the temporary vulcanization joints 38 of the new and old belt, and pulling all the residual old belt out of the wellhead room until all the belt is recovered;
s5, performing trial operation on the belt, recovering an upper bracket and a belt protection and unloading roller shield at the vulcanizing platform, connecting a snake-shaped spring between a speed reducer and a driving roller, and slowly tensioning the untensioned conveying belt at the machine head by using 2 pairs of hydraulic belt locking mechanisms for fixing the lower belt and 6 pairs of self-made board cards controlled by a jack to perform trial operation on the belt;
s6, no-load test operation, arranging a specially-assigned person to inspect the whole belt, and debugging after dismantling and recycling all temporary facilities influencing belt debugging;
s7, overloading, trial running, and reporting to a construction unit for acceptance after debugging is not problematic;
and S8, recycling the old belt.
In step S2, the old belt 6 is cut off at the vulcanizing platform 23, and then the lower old belt end 24 'from the unloading roller to the belt breakage is inserted into the upper belt locking mechanism 17 of the caterpillar traction continuous belt changer ii 41 and the upper belt locking mechanism 13 of the caterpillar traction continuous belt changer i 40 by using the traveling crane in the wellhead house and the column-returning winch in the wellhead house to cooperate with each other, the lower old belt end 24' is pulled out of the wellhead house to the automatic belt-winding recovery device 10 through the old belt temporary transition support 11, and simultaneously the end of the new belt 12 is vulcanized with the old belt 24 through the lower belt locking mechanism 14 of the caterpillar traction continuous belt changer i 40 and the lower belt locking mechanism 18 of the caterpillar traction continuous belt changer ii 41, the machine head driving roller i 1, the direction-changing roller i 2, the driving roller ii 3, the direction-changing roller ii 4 to the vulcanizing platform 23, so as to form the new and old belt temporary vulcanizing joint 38.
In step S3, the caterpillar of the caterpillar-traction continuous belt changer draws out and recovers the upper end of the old belt 24, and continuously lays new belts until the temporary vulcanization joint 38 of the new and old belts is positioned above the vulcanization platform, and the caterpillar-traction continuous belt changer i 40 and the caterpillar-traction continuous belt changer ii 41 are stopped.
In step S4, the lower belt locking of the caterpillar-traction continuous belt changer is opened, the remaining tail end 39 of the new belt on the ground is pulled out from the lower belt locking mechanism 14 of the caterpillar-traction continuous belt changer i 40 and the lower belt locking mechanism 18 of the caterpillar-traction continuous belt changer ii 41 by using a prop pulling winch and a traveling crane, the machine head driving roller i 1 is turned over, the tail end 39 of the new belt is pulled to the vulcanization platform, and the new belt and the head end 12 of the new belt are subjected to vulcanization compounding gantry to prepare for closing the gantry.
In step S6, the speed is increased at four speeds of 25%, 50%, 75% and 100% of the designed speed of the main inclined shaft belt, and each operation is not lower than 4h and not lower than the stroke of 2 circles of the whole belt.
In step S7, belt loads are adjusted to 25%, 50%, 75%, 100% of design capacity, and each shift is not less than 4 h.
The invention has the following advantages: according to the main inclined shaft belt conveyor mechanical continuous belt quick replacement device and the construction process, during construction preparation, a new belt is vulcanized on the ground to form a whole, two caterpillar belts are operated near a wellhead room to pull the continuous belt replacement device, the old belt drives the new belt to lay the new belt, the old belt is automatically recovered, finally the belt is tensioned, the belt conveyor is in test run, and empty-heavy load test run is carried out, so that the main inclined shaft belt conveyor belt replacement is completed more quickly, more efficiently, more economically, reasonably, safely and reliably.
Drawings
FIG. 1 is a schematic diagram of the main inclined shaft belt conveyor belt wrap of the present invention;
FIG. 2 is a general plan view of the construction of the present invention;
FIG. 3 is a schematic view of the apparatus for cutting and pulling out the old belt of the present invention to a recovery device;
FIG. 4 is a schematic illustration of the new belt introduction and old belt cure of the present invention;
FIG. 5 is a schematic view of the new belt application and old belt recovery of the present invention;
FIG. 6 is a schematic view of the present invention retaining a new belt and withdrawing an old belt;
FIG. 7 is a schematic view of the new belt head and tail end vulcanization closure of the present invention;
in the figure: 1. the device comprises machine head driving rollers I, 2, machine head turnabout rollers I, 3, machine head driving rollers II, 4, machine head turnabout rollers II, 5, an ascending belt, 6, a descending belt, 7, a wellhead turnabout roller, 8, a machine tail turnabout roller, 9, a machine tail tensioning roller, 10, an old belt recovery device, 11, an old belt temporary transition support, 12, a new belt, 13, an upper clamping crawler I and 14 of a crawler traction continuous belt changing device, a lower clamping crawler I and 15 of the crawler traction continuous belt changing device, upper belt locking mechanisms I and 16 of the crawler traction continuous belt changing device, lower belt locking mechanisms I and 17 of the crawler traction continuous belt changing device, upper clamping crawler II and 18 of the crawler traction continuous belt changing device, lower clamping crawler II and 19 of the crawler traction continuous belt changing device, upper belt locking mechanisms II and 20 of the crawler traction continuous belt changing device, and an upper belt locking mechanism II of the crawler traction continuous belt changing device, 21. the continuous belt changing device comprises a caterpillar traction continuous belt changing device support 22, a wellhead house outer wall 23, a vulcanization platform 24, a lower old belt end 24', an upper old belt end 25, hydraulic plate clamps I and 26 and a hydraulic plate clamp II; 27. the self-made plate cards I and 28, the self-made plate cards II and 29, a belt clamping device of a belt conveyor, 30-wellhead positions, 31, self-made plate cards III and 32, self-made plate cards IV and 33, self-made plate cards V and 34, self-made plate cards VI and 35, a belt broken catcher of the belt conveyor, 36, an upper carrier roller of the belt conveyor, 37, a lower carrier roller device of the belt conveyor, 38, a temporary vulcanization joint of a new belt and an old belt, 39, a tail end of the new belt, 40, a crawler traction continuous belt changing device I and 41 and a crawler traction continuous belt changing device II.
Detailed Description
The belt device for mechanically and continuously and quickly replacing the belt of the belt conveyor of the main inclined shaft comprises a machine head driving roller I1, a machine head direction-changing roller I2, a machine head driving roller II 3, a machine head direction-changing roller II 4, a wellhead direction-changing roller 7, a machine tail direction-changing roller 8, a machine tail tensioning roller 9, an ascending belt 5 and a descending belt 6, wherein a belt conveyor belt clamping device 29, a belt conveyor belt breaking catcher 35, a belt conveyor upper supporting roller 36 and a belt conveyor lower supporting roller device 37 are arranged on the ascending belt 5 and the descending belt 6, a hydraulic plate clamp and a self-made plate clamp are arranged at the belt conveyor belt clamping device 29, a wellhead position 30 and the belt conveyor belt breaking catcher 35, a vulcanizing platform 23 is arranged at a position below the belt outside of the wellhead position 30, a belt traction continuous belt changing device support 21 is arranged at the outer wall 22 of the wellhead wall, the well head wall outer wall 22 and the caterpillar traction continuous belt changing device support 21 are respectively provided with a caterpillar traction continuous belt changing device II 41 and a caterpillar traction continuous belt changing device I40, an old belt temporary transition support 11 and an old belt recovery device 10 are arranged beside the caterpillar traction continuous belt changing device support 21, and a vulcanized new belt 12 is placed below the old belt temporary transition support 11. According to the belt device for mechanically and continuously and quickly replacing the belt of the main inclined shaft belt conveyor, the belt clamping device of the belt conveyor, the broken belt catcher of the belt conveyor, the upper carrier roller of the belt conveyor and the lower carrier roller device of the belt conveyor are arranged on the upper belt and the lower belt, the belt clamping device of the belt conveyor, the broken belt catcher of the belt conveyor, the upper carrier roller of the belt conveyor and the lower carrier roller device of the belt conveyor are used for fixing the position of the belt when the belt is replaced, the vulcanization of a new belt and an old belt is facilitated, the vulcanization platform is arranged outside a; through set up caterpillar traction continuous belt changing device II 41 outside the well head, caterpillar traction continuous belt changing device I40, interim transition support 11 of old belt and old belt recovery unit 10, can be orderly the old belt that will need to be replaced pulls out, when emigrating out old belt, introduce new belt, after the operation is accomplished, old belt just collects outside the well head naturally, the operation of further retrieving old belt has been reduced, operation steps has not only been simplified, potential safety hazard when having avoided transporting old belt simultaneously, the security and the efficiency of operation have been improved greatly, realize more fast, high efficiency, more economical and reasonable, accomplish more safe and reliable's change main inclined shaft belt conveyor belt and change.
The belt device for the mechanized continuous quick replacement of the main inclined shaft belt conveyor is shown in fig. 1 to 7, a hydraulic plate clamp i 25, a hydraulic plate clamp ii 26, a home-made plate clamp i 27 and a home-made plate clamp ii 28 are arranged on a belt clamping device 29 of the belt conveyor, a home-made plate clamp iii 31 and a home-made plate clamp iv 32 are arranged at a wellhead position 30, and a home-made plate clamp v 33 and a home-made plate clamp vi 34 are arranged at a belt broken catcher 35 of the belt conveyor.
The belt device for the main inclined shaft belt conveyor is mechanized and continuously and quickly replaced as shown in fig. 1 to 7, the caterpillar traction continuous belt changer I40 comprises a caterpillar traction continuous belt changer upper clamping crawler I13, a caterpillar traction continuous belt changer lower clamping crawler I14, a caterpillar traction continuous belt changer upper belt locking mechanism I15 and a caterpillar traction continuous belt changer upper belt locking mechanism I16, and the caterpillar traction continuous belt changer II 41 comprises a caterpillar traction continuous belt changer upper clamping crawler II 17, a caterpillar traction continuous belt changer lower clamping crawler II 18, a caterpillar traction continuous belt changer upper belt locking mechanism II 19 and a caterpillar traction continuous belt changer upper belt locking mechanism II 20.
The construction method for mechanically and continuously and quickly replacing the belt device of the main inclined shaft belt conveyor comprises the following process flows of: preparing before construction, retaining an old belt by a clamp, cutting off the old belt at a vulcanizing platform, leading out an upper old belt, leading in a new belt 12 to the vulcanizing platform, vulcanizing the old belt with a lower old belt, laying the new belt, recovering the old belt, retaining the new belt, cutting off a joint of the new belt and the old belt, pulling out the residual old belt, a vulcanized portal at the tail end of the new belt, tensioning the adhesive tape, trial running the belt, trial running empty and heavy load, checking and accepting, removing and recovering a temporary facility and the old belt, vulcanizing the new belt on the ground to complete a whole during the construction preparation, installing two crawler belt traction continuous belt changing devices 40 and 41 in front of a driving roller I, installing 2 hydraulic plate clamps and 6 self-made plate clamps at a clamping device 29, a wellhead position 30 and a broken belt catcher 35, retaining the old belt, cutting off the old belt at the vulcanizing position, pulling out an upper old belt from a well mouth to an automatic belt recovery device 10 for recovery after passing through an upper locking mechanism of the two crawler belt traction devices, connecting and vulcanizing an old lower belt with a new belt introduced by a lower belt locking mechanism, a driving roller and a bend pulley of two crawler traction devices, operating the two crawler traction continuous belt changing devices, driving the new belt by the old belt, laying the new belt, automatically recycling the old belt at the same time, retaining the new belt until the temporary vulcanization joint 38 of the new and old belt reaches the upper part of a vulcanization platform, cutting off the temporary vulcanization joint 38 of the new and old belt, finishing the recycling of all the residual old belt, turning over the driving roller at the tail end of the new belt to be vulcanized with the head end of the new belt, finally tensioning the belt, performing the trial operation of a belt conveyor, performing the empty and heavy load trial operation, and dismantling and recycling the temporary facility and the old belt.
The method specifically comprises the following steps:
1. and (5) preparing before construction.
The preparation work before construction comprises the steps of vulcanizing a new belt 12 on the ground and transporting the belt to a position near a wellhead house, installing a caterpillar traction continuous belt changing device I40, installing a caterpillar traction continuous belt changing device II 41, installing an automatic winding recovery device 10, installing an old belt temporary transition support 11, installing a caterpillar traction continuous belt changing device support 21, installing a vulcanizing platform 23, installing a hydraulic plate card I25, a hydraulic plate card II 26, an autonomous plate card I27 and an autonomous plate card II 28 on a belt type conveyor belt clamping device 29, installing an autonomous plate card III 31 and an autonomous plate card IV 32 at a wellhead position 30, installing an autonomous plate card V33 and an autonomous plate card VI 34 on a wellhead broken belt catcher 35 and the like.
(1) Vulcanizing and stacking the new adhesive tape 12. When the mine is normally produced, all the new belts are sequentially and completely unfolded and vulcanized into a whole on a ground main inclined shaft well head room square.
(2) A caterpillar traction continuous belt changer support 21 and an old belt temporary transition support 11 are arranged in front of the driving roller, and two caterpillar traction continuous belt changers 40 and 41 are arranged.
(3) Hydraulic cards 25, 26 are installed at the entrainment device 29, while home-made cards 27, 28, 31, 32, 33, 34 are installed at the entrainment device 29, the wellhead location 30 and the broken belt catcher 35.
(4) And 1 40kW dispatching winch is arranged beside the new adhesive tape 12 stacked on the south side of the wellhead room for recovering the old adhesive tape. 1 20t prop pulling winch is arranged in a wellhead room and used for pulling out an old adhesive tape and pulling in a new adhesive tape.
(5) 110 t of redirection pulleys are hung on the entrainment device 29, and a 20t prop drawing winch steel wire rope in the wellhead room passes through the pulleys.
2. Cutting off the old belt, threading the upper old belt into the belt-changing device, and vulcanizing the lower old belt and the new belt
(starting the hydraulic boards 25, 26 and the home-made boards 27, 28, 31, 32, 33, 34, leaving the old belt, cutting off the old belt 6 at the vulcanization station 23)
(1) The lower belt 6 at the position of the belt clamping device 29, the position of a wellhead 30 and the position of a broken belt catcher 35 is clamped and fixed by hydraulic plate clamps 25 and 26 and self-made plate clamps 27, 28, 31, 32, 33 and 34, and then the tensioning vehicle at the tail of the machine is loosened.
(2) And (3) the belt conveyor is started, after the belt moves upwards by about 500mm, an operator starts a hydraulic station to clamp the old belt at the belt clamping device by using a belt locking device, and then 6 pairs of self-made plate cards 27, 28, 31, 32, 33 and 34 at the positions of the belt clamping device 29, the wellhead position 30 and the broken belt catcher 35 are fastened to fix the old belt. And (4) marking the old belt, observing that the mark does not move after half an hour, and starting to prepare for cutting off the old belt. At the moment, a snake-shaped spring between the speed reducer and the driving roller needs to be removed, and the unloading roller shield is cut to facilitate the belt to enter and exit.
(3) The old belt 6 is cut at the vulcanisation station 23. Then, a travelling crane in the wellhead house and a prop pulling winch in the wellhead house are matched with each other to enable a lower old belt end 24' from the unloading roller to a broken belt to penetrate into an upper belt locking mechanism 17 of a caterpillar traction continuous belt changing device II 41 and an upper belt locking mechanism 13 of a caterpillar traction continuous belt changing device I40, the wellhead house is pulled out to the automatic winding belt recovery device 10 through an old belt temporary transition support 11, meanwhile, a new belt end 12 passes through a lower belt locking mechanism 14 of the caterpillar traction continuous belt changing device I40 and a lower belt locking mechanism 18 of the caterpillar traction continuous belt changing device II 41, passes through a machine head driving roller I1, a machine head direction changing roller I2, a machine head driving roller II 3 and a machine head direction changing roller II 4 to a vulcanization platform 23 and is vulcanized with an old belt 24, and a new and old belt temporary vulcanization joint 38 is formed.
3. Laying new belts and recycling old belts
(1) And after the new and old belts are vulcanized, the vulcanizer is removed, and 2 pairs of hydraulic board cards 25 and 26 and 6 pairs of self-made board cards 27, 29, 31, 32, 33 and 34 at the positions of the entrainment device 29, the wellhead position 30 and the broken belt catcher 35 are loosened. The open clearance of the hydraulic belt locking mechanism is adjusted, the hydraulic belt locking mechanism is matched with the caterpillar belt traction continuous belt changing device to prevent the belt from sliding downwards, and meanwhile, the self-made board cards 27, 29, 31, 32, 33 and 34 are jacked by hydraulic jacks to control the clearance of the board cards.
(2) And starting the caterpillar traction continuous belt changing device I40 and the caterpillar traction continuous belt changing device II 41, wherein the old belt is provided with a new belt, the caterpillar of the caterpillar traction continuous belt changing device pulls out and recovers the upper old belt 5, the new belt is laid continuously until the temporary vulcanization joint 38 of the new and old belt is positioned above the vulcanization platform, and the caterpillar traction continuous belt changing device I40 and the caterpillar traction continuous belt changing device II 41 are stopped.
4. Retaining the new belt, cutting off the joint of the new and old belts, drawing out the residual upper old belt, drawing in the new belt, and combining the gantry with new belt and sulfur
(1) When the new and old belt joints 38 run to the position above the vulcanizing platform 23, the belt locking mechanisms of the caterpillar traction continuous belt changing device I40 and the caterpillar traction continuous belt changing device II 41 are stopped, meanwhile, the solid-liquid pressing boards 25 and 26 and the self-made boards 27, 28, 31, 32, 33 and 34 are tightened to fix the new belt 12, and constructors fasten 6 pairs of self-made boards.
(2) And after the vulcanization position is determined, cutting off the temporary vulcanization joint 38 of the new and old belts, operating the crawler traction continuous belt changing device I40 and the crawler traction continuous belt changing device II 41, and pulling all the remaining old belts out of the wellhead room from the upper belt locking mechanism 17 of the crawler traction continuous belt changing device II 41, the upper belt locking mechanism 13 of the crawler traction continuous belt changing device I40 and the temporary transition support 11 of the old belts until all the old belts are completely recycled.
(3) And opening a lower belt locking mechanism of the caterpillar traction continuous belt changing device, using a prop pulling winch and a travelling crane to pull out the tail end 39 of the new belt left on the ground from the lower belt locking mechanism 14 of the caterpillar traction continuous belt changing device I40 and the lower belt locking mechanism 18 of the caterpillar traction continuous belt changing device II 41, turning over the machine head driving roller I1, pulling the tail end 39 of the new belt to a vulcanization platform, and carrying out vulcanization combination gantry on the new belt and the head end 12 of the new belt to prepare for closing the gantry.
(4) And (3) removing the upper bracket of the belt conveyor 12m long behind the unloading roller, erecting a vulcanization platform at the position, and after vulcanization is finished, carefully checking a vulcanization joint to ensure the vulcanization quality of the joint. And (4) removing the vulcanizing platform.
5. Belt test run
(1) An upper bracket and a belt protection and unloading roller shield at the position of the recovery vulcanization platform are connected with a snake-shaped spring between the speed reducer and the driving roller.
(2) The untensioned conveyor belt at the head was slowly tensioned using 2 pairs of hydraulic belt locking mechanisms to secure the lower belt and 6 pairs of home-made plate cards controlled by jacks.
(3) Then 2 sets of hydraulic belt locking mechanisms and 1 set of self-made board cards are dismantled.
(4) After recovery, the belt is subjected to test operation.
6. No-load test run
(1) And arranging a specially-assigned person to inspect the whole belt, and debugging after dismantling and recycling all temporary facilities influencing belt debugging.
(2) And arranging a specially-assigned person for nursing every 50m, slowly starting the drive, and finding that the belt has serious deviation and must be stopped for treatment.
(3) The speed is increased according to four speeds of 25%, 50%, 75% and 100% of the designed speed of the main inclined shaft belt, and the speed is not lower than 4h and not lower than the stroke of 2 circles of the whole belt in each operation.
7. Heavy-duty test run
(1) And (5) rechecking whether various protections of the belt conveyor are put into use and whether each mechanical part is normal.
(2) Before heavy-load test operation, the upper bin belt below the main inclined shaft is connected in advance and operates normally.
(3) After no-load test operation has no any problem, heavy-load test operation can be carried out.
(4) And sending a belt starting signal after confirming that no problem exists, and checking related parts of the belt.
(5) The belt heavy load is debugged according to 25%, 50%, 75% and 100% of the design capacity, and the operation of each gear is not less than 4 h.
(6) And after debugging is carried out, reporting and establishing a unit for acceptance inspection.
8. Old belt recovery
(1) And (4) coiling the old belt on the ground by using the mutual matching of the prop pulling winch and the belt coiling machine.
(2) And hoisting and transporting the rolled belt to a specified place of a mine.
Claims (9)
1. Mechanized continuous quick replacement belt device of main inclined shaft belt conveyor, its characterized in that: the belt conveyor belt changing device comprises a machine head driving roller I (1), a machine head direction changing roller I (2), a machine head driving roller II (3), a machine head direction changing roller II (4), a wellhead direction changing roller (7), a machine tail direction changing roller (8), a machine tail tensioning roller (9), an ascending belt (5) and a descending belt (6), wherein a belt conveyor belt clamping device (29), a belt conveyor broken belt catcher (35), a belt conveyor upper supporting roller (36) and a belt conveyor lower supporting roller device (37) are arranged on the ascending belt (5) and the descending belt (6), a hydraulic plate card and a self-control are arranged at the belt conveyor belt clamping device (29), a wellhead position (30) and the belt conveyor broken belt catcher (35), a vulcanizing platform (23) is arranged at a position, below the belt, of the outer side of the wellhead position (30), a wellhead wall outer wall (22) is provided with a track traction continuous belt changing device support (21), the well head wall outer wall (22) and the caterpillar traction continuous belt changing device support (21) are respectively provided with a caterpillar traction continuous belt changing device II (41) and a caterpillar traction continuous belt changing device I (40), an old belt temporary transition support (11) and an old belt recovery device (10) are arranged beside the caterpillar traction continuous belt changing device support (21), and a vulcanized new belt (12) is placed below the old belt temporary transition support (11).
2. The mechanized, continuous, quick-change belt apparatus of a main inclined shaft belt conveyor of claim 1, wherein: be equipped with hydraulic pressure integrated circuit board I (25), hydraulic pressure integrated circuit board II (26), self-control integrated circuit board I (27) and self-control integrated circuit board II (28) on belt conveyor pinch device (29), well head position (30) are equipped with self-control integrated circuit board III (31) and self-control integrated circuit board IV (32), belt conveyor broken belt catcher (35) department is equipped with self-control integrated circuit board V (33) and self-control integrated circuit board VI (34).
3. The mechanized, continuous, quick-change belt apparatus of a main inclined shaft belt conveyor of claim 1, wherein: the caterpillar traction continuous belt changing device I (40) comprises a caterpillar traction continuous belt changing device upper clamping caterpillar I (13), a caterpillar traction continuous belt changing device lower clamping caterpillar I (14), a caterpillar traction continuous belt changing device upper belt locking mechanism I (15) and a caterpillar traction continuous belt changing device upper belt locking mechanism I (16), and the caterpillar traction continuous belt changing device II (41) comprises a caterpillar traction continuous belt changing device upper clamping caterpillar II (17), a caterpillar traction continuous belt changing device lower clamping caterpillar II (18), a caterpillar traction continuous belt changing device upper belt locking mechanism II (19) and a caterpillar traction continuous belt changing device upper belt locking mechanism II (20).
4. The construction process of mechanized continuous quick-change belt device of the main inclined shaft belt conveyor of claim 1, characterized in that: the method comprises the following steps:
s1, preparing before construction, vulcanizing a new belt (12) on the ground and conveying the belt to a position near a wellhead room, installing a caterpillar traction continuous belt changing device support (21), an old belt temporary transition support (11), a belt winding automatic recovery device (10), a caterpillar traction continuous belt changing device I (40), a caterpillar traction continuous belt changing device II (41) and a vulcanization platform (23), and installing a hydraulic plate clamp and an autonomous plate clamp II at a belt clamping device (29) of a belt conveyor, a wellhead position (30) and a wellhead broken belt catcher (35);
s2, cutting off the old belt, enabling the upper old belt to penetrate through the belt changing device, vulcanizing the lower old belt and the new belt, starting the hydraulic plate card and the self-made plate card, keeping the old belt, and cutting off the old belt (6) at the vulcanizing platform (23);
s3, laying a new belt, recycling the old belt, removing the vulcanizer after the old and new belts are vulcanized, loosening 2 pairs of hydraulic plate cards and 6 pairs of self-made plate cards at the position of the belt clamping device (29), the wellhead position (30) and the broken belt catcher (35), starting the caterpillar traction continuous belt changing device I (40) and the caterpillar traction continuous belt changing device II (41), and continuously laying the new belt by using the old belt;
s4, retaining the new belt, cutting off the new and old belt joints, drawing out the residual old belt, combining the gantry with the new belt and the old belt, determining the vulcanization position when the new and old belt joints (38) run above the vulcanization platform (23), cutting off the temporary vulcanization joints (38) of the new and old belt, and pulling all the residual old belt out of the wellhead until all the residual old belt is recovered;
s5, performing trial operation on the belt, recovering an upper bracket and a belt protection and unloading roller shield at the vulcanizing platform, connecting a snake-shaped spring between a speed reducer and a driving roller, and slowly tensioning the untensioned conveying belt at the machine head by using 2 pairs of hydraulic belt locking mechanisms for fixing the lower belt and 6 pairs of self-made board cards controlled by a jack to perform trial operation on the belt;
s6, no-load test operation, arranging a specially-assigned person to inspect the whole belt, and debugging after dismantling and recycling all temporary facilities influencing belt debugging;
s7, overloading, trial running, and reporting to a construction unit for acceptance after debugging is not problematic;
and S8, recycling the old belt.
5. The mechanized, continuous, and quick-change belt process of claim 4, wherein: in the step S2, an old belt (6) is cut off at a vulcanization platform (23), then a well head room travelling crane and a well head room prop pulling winch are used for mutually matching to enable a lower old belt end part (24 ') from an unloading roller to a belt breakage position to penetrate into an upper belt locking mechanism (17) of a crawler traction continuous belt changing device II (41) and an upper belt locking mechanism (13) of a crawler traction continuous belt changing device I (40), the lower old belt end part (24') is pulled out of the well head room to an automatic winding belt recovery device (10) through an old belt temporary transition support (11), and meanwhile, the end part of a new belt (12) is pulled to the vulcanization platform (23) through a lower belt locking mechanism (14) of the crawler traction continuous belt changing device I (40) and a lower belt locking mechanism (18) of the crawler traction continuous belt changing device II (41) through a machine head driving roller I (1), a bend roller I (2), a driving roller II (3) and a bend roller II (4), and vulcanizes with the old belt (24) to form a new and old belt temporary vulcanised joint (38).
6. The mechanized, continuous, and quick-change belt process of claim 4, wherein: in step S3, the upper end of the old belt (24) is drawn out and recovered by the crawler of the crawler traction continuous belt changing device, new belts are laid continuously until the temporary vulcanization joint (38) of the new and old belts is positioned above the vulcanization platform, and the crawler traction continuous belt changing device I (40) and the crawler traction continuous belt changing device II (41) are stopped.
7. The mechanized, continuous, and quick-change belt process of claim 4, wherein: in step S4, the lower belt locking of the continuous belt changing device is opened, the tail end (39) of the new belt left on the ground is drawn out from the lower belt locking mechanism (14) of the continuous belt changing device I (40) and the lower belt locking mechanism (18) of the continuous belt changing device II (41) by using a prop pulling winch and a travelling crane, the machine head driving roller I (1) is turned over, the tail end (39) of the new belt is pulled to a vulcanization platform, and the gantry is vulcanized on the new belt and the head end (12) of the new belt to prepare for closing the gantry.
8. The mechanized, continuous, and quick-change belt process of claim 4, wherein: in step S6, the speed is increased at four speeds of 25%, 50%, 75% and 100% of the designed speed of the main inclined shaft belt, and each operation is not lower than 4h and not lower than the stroke of 2 circles of the whole belt.
9. The mechanized, continuous, and quick-change belt process of claim 4, wherein: in step S7, belt loads are adjusted to 25%, 50%, 75%, 100% of design capacity, and each shift is not less than 4 h.
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Application publication date: 20210205 |