32results about How to "Increase support speed" patented technology

The invention provides a blast-winning, coal loading, coal conveying and anchor rod-timbering mechanical integrated operating method and device. And the device mainly comprises: hydraulic system, hydraulic control table, track walking part, coal loading and conveying part, timbering part, and hydraulic anchor rod machine, and the method uses integrated device, scraper conveyor and gate coal conveyor; and its drivage circulating speed is 1m to 1.5 m, blast-winning and after the fumes have settled, making the integrated device enter into the operating site, and after completing coal loading and conveying, making anchor rod timbering; after completing the anchor rod timbering operation, making the integrated device exit the operating site and over 20 meters distant from the operating site, and then making drilling and blasting operation. And it improves explosion level of blast winning and resources recovery, and reduces operators.

The invention relates to a grouting anchor cable advanced supporting method, belongs to the field of advanced supporting and aims at solving the problems of insufficient supporting strength and slow supporting speed in the prior art and roof breakage and large worker labor intensity caused by repeated supporting. The advanced supporting method disclosed by the invention comprises the following steps: step 1, determining a mining roadway (1) to be supported on a current working face (3); step 2, determining an advanced supporting distance L according to the advanced supporting pressure distribution law and the engineering geological condition of the mining roadway (1); step 3, adding grouting anchor cable advanced supporting to a roof of the mining roadway (1) to form a roof supporting structure. In a coal mining process, the working face (3) is propelled forwards, the grouting anchor cable advanced supporting is simultaneously and continuously added in the propelling direction, and theadvanced supporting distance is maintained in a safe range. The grouting anchor cable advanced supporting method disclosed by the invention can ensure safe mining and simultaneously improve supporting strength and supporting efficiency and reduce worker labor intensity.

The invention discloses a length determining method for an anchor rod for roadway supporting. The length determining method includes the steps that according to the shape of a cross section of a roadway, a circumcircle of a contour line of the roadway is made; then an expansion concentric circle of the circumcircle is made according to the development depth of a surrounding-rock plastic zone, and parameters of the reasonable length of the anchor rod are obtained in the mode that the distance from the surface of the roadway to the expansion concentric circle of the plastic zone, the length that the anchor rod is anchored into hard-and-stable surrounding rock and the exposed length of the anchor rod are superposed. According to the length determining method, the process that the reasonable length of the anchor rod is determined is simple, operation is convenient, the accuracy is high, materials of a rod body of the anchor rod are saved, waste is avoided, the construction speed of drilling is increased, the labor strength of workers is reduced, the surrounding-rock control efficiency of the anchor rod is improved, and the favorable condition is provided for mine safety production.

The invention belongs to the technical field of underground equipment in a coal mine and particularly relates to an anchor rod transloading set which solves the problem that existing underground equipment in the coal mine cannot be suitable for mines with small section roadways and mines with coal beds in poor geological conditions. The anchor rod transloading set comprises a chassis, a transloading mechanism and a scraper conveyer. The bottom disc is provided with the transfer mechanism and comprises a main frame, a left crawler frame, a right crawler frame and a tail frame. Lifting mechanisms are respectively arranged at the top parts of the left crawler frame and the right crawler frame. The top parts of the lifting mechanisms are connected with a worktable, and the front part of the worktable is connected with a front anchor protector. A rear anchor protector is arranged at the rear part of the main frame. Temporary supports are further hinged on the left crawler frame and the right crawler frame. The invention has the beneficial effects that the anchor rod transloading set can be used for mines with small section roadways and mines with coal beds in poor geological conditions, the complete machine is arranged compactly, the structure is reasonable, the anchor protector part has high degree of automation and fast support speed, and the anchor rod transfer set has large loading capacity, strong climbing ability and can protect and transfer at the same time.

The invention relates to a mining anchoring steel belt and roadway top plate anchor rod supporting method. Mining anchoring steel belts include a transverse steel belt and two longitudinal steel belts, one ends of the longitudinal steel belts are connected with the transverse steel belt, the transverse steel belt and the longitudinal steel belts are integrally formed, a transverse groove is formed on the transverse steel belt, a longitudinal groove is formed on each longitudinal steel belt, a protruding outwards-extending structure is formed at a free end of each longitudinal steel belt, a lapping structure used for being matched with an outwards-extending structure of another mining anchoring steel belt is formed on the transverse steel belt, an anchor rope limiting hole is arranged in each longitudinal groove, and an anchor rod limiting hole is arranged on each outwards-extending structure. Due to adoption of the above technical scheme, temporary supporting effect similar to that of a forepoling bar can be realized; conventional forepoling bar temporary supporting is replaced, so that labor intensity of workers is lowered, and supporting speed is increased.

The invention relates to the technical field of two way radios, and specifically discloses a digital two way radio with an automatic GPS (Global Positioning System). The digital two way radio with the automatic GPS comprises a power module, a gas detection module, an image collection module and an audio collection module. The output end of the power module is electrically connected with the input end of a control module; the output end of the gas detection module is in signal connection with the input end an emergency alarm module; the output end of the image collection module is in signal connection with the input end of the control module; and a GPS positioning module, a GPRS communication module, a wireless transmission module and a wireless reception module are in signal connection with the control module. The digital two way radio with the automatic GPS provides precise position information and transmits the precise position information to partners around through the wireless transmission module, so that supporting partners can find the supporting site accurately and rapidly, the supporting speed among the police officers is increased, and image and audio information can be collected clearly.

The invention provides a movable supporting frame for roast duck production. The movable supporting frame for roast duck production comprises two supporting rods which are connected by a pin shaft ina rotatable manner, wherein a rod head is in dismountable connection to an end part of each of the two supporting rods; a round groove is formed in the supporting rod located on the front side, a ratchet wheel limited in the round groove is connected to the front end of the pin shaft, and a ratchet pawl fitted with the ratchet wheel is disposed on the groove wall of the round groove; a regular polygonal groove is formed in the supporting rod located on the rear side, a round plate limited in the regular polygonal groove is connected to the rear end of the pin shaft, and a taper hole is formedin the round plate; and a regular polygonal limiting plate fitted with the regular polygonal groove is also disposed, and an insertion connecting rod which can be inserted into the taper hole is disposed on the regular polygonal limiting plate. The movable supporting frame has the beneficial effects of accelerating formation of supporting inside a duck, boosting increase of production efficiency,avoiding generation of rejects and greatly improving appearance of roast ducks.

The invention discloses a development machine, comprising a development machine body (1) as well as a supporting device (2) and a driving device (3) for driving the supporting device (2) to move; wherein the supporting device (2) is arranged at the front part of the development machine body (1), and the supporting device (2) can be in supported position under the action of the driving device (3). The development machine provided by the invention can widen application range thereof while ensuring use cost to be low, and meanwhile the time required by supporting is reduced, the labor intensity of workers is reduced, and the work efficiency is improved.

The invention provides a construction method for quickly pouring anti-slide pile protection wall concrete. After a previous section of poured protection wall concrete has a certain strength, a sand cushion layer is cleared, all sand cushions are collected together for standby application, and anti-slide pile excavation is continued; after the pouring height of one section of a protection wall is reached, protection wall steel bars are welded and bound under the poured protection wall; a sand bottom moldboard is laid to the position 3 centimeters above the bottom of a protection wall side moldboard, and the width of the sand bottom moldboard is 30 centimeters or above larger than that of the protection wall side moldboard; the optimized and improved protection wall side moldboard in which concrete feeding holes are pre-formed is erected, after the side moldboard is erected, the bottom of the side moldboard is embedded deep into 3 centimeters in a sand layer to prevent grout runout, the portion 5 centimeters above the top of the side moldboard is closely attached to the face of the previous section of the protection wall, and the protection wall moldboard is reinforced through steel pipes and adjustable lead screws. A concrete lifting bucket is lifted through a small lifting winch, the concrete can be directly poured into the moldboards through a simple movable concrete sliding groove, the concrete pouring speed is high, and the labor intensity of workers is reduced. Through the steps, quick construction of the anti-slide pile sand bottom moldboards is achieved.

The present invention relates to a mine mining equipment, in particular to a cable-anchor drilling rig for mining, which comprises a main body of a cable-anchor drilling rig, a main body of a cable-anchor drilling rig, a telescopic rod and an anchor rod connected in sequence, and the bottom of the main body of a cable-anchor drilling rig is sequentially arranged from left to right There are a booster, a slideway plate and a gradient gauge, the main body of the cable anchor drilling rig is placed on the slideway plate, the slideway plate is connected with a support, a storage box is arranged on the support, and the bottom of the support is connected with wheels. The invention has the advantages of simple processing, convenient operation, firmness and durability, and low cost, greatly improves the support speed and support quality, improves the safety factor of construction personnel, and creates conditions for realizing rapid and comprehensive mechanized excavation.

The invention discloses a reversible drilling box for a roof bolter. The reversible drilling box comprises a fixed seat arranged on a roof bolter sliding rail, a drilling box body capable of being reversed relative to the fixed seat, and a reversing oil cylinder for pushing the drilling box body to be reversed, wherein the drilling box body is connected with the fixed seat through a first hinge shaft; one end of the reversing oil cylinder is connected with the drilling box body through a second hinge shaft; the other end of the reversing oil cylinder is connected with the fixed seat through athird hinge shaft; and the drilling box body is driven by the reversing oil cylinder to be reversed left and right around the first hinge shaft. According to the roof bolter, the problem of replacinga drill rod and an anchor rod when the anchor rod is constructed in a small roadway is solved, when the anchor rod is constructed through the roof bolter, the roof bolter does not need to be moved when the anchor rod is inserted, the problem that the replacing efficiency of the drill rod and the anchor rod is low is solved, the anchor rod is inserted more conveniently, the anchoring efficiency isimproved, the secondary eye finding time is shortened, and the anchor rod supporting speed is increased.

The invention provides a telescopic flexible die for gob-side entry retaining. The telescopic flexible die comprises three flexible die units including a flexible die A, a flexible die B and a flexible die C, wherein the flexible die A, the flexible die B and the flexible die C are integrally connected, a grouting hole A, a grouting hole B and a grouting hole C are respectively formed in the side walls of the flexible die A, the flexible die B and the flexible die C, a groove is formed in one side of the flexible die A, and the groove is matched with the flexible die C. The telescopic flexible die has the advantages of convenience in pouring and high use efficiency, an adopted telescopic flexible formwork can extend and retract as required, pouring materials are poured into the flexible formwork, the flexible formwork support speed is increased, the limitation of flexible formwork support on the stoping speed is relieved, material leakage is prevented, and the construction requirement is met.