Sandvik bolting machine "force"

With the experience and accumulation of more than 100 years in the field of mining equipment, Sandvik's world's first anchoring machine, which combines excavation and anchoring, realizes simultaneous cutting, loading and support, parallel operations, and one lane at a time. The efficiency has been greatly improved, and it is truly a miracle of “zero casualties” at the Jinggong Coal Mine. With China's increasingly stringent security requirements for the mining industry, this equipment undoubtedly brings "gospel" to China's coal mining companies.

Shenhua Shendongbuertai Coal Mine, known as the world’s largest well-mechanized coal mine, not only needs to create the world’s first mine production capacity, main transport system capacity, and coal washing processing capacity, but also for China’s coal mining process. The technology, security, efficiency and other aspects set a banner. The six sets of Tedvik bolting machines introduced at the Bultai coal mine have apparently become the “banger” of the world’s first to achieve various indicators.

In recent years, with the use of a large number of roadheaders in the coal mining process, although the speed of excavation has been accelerated, the speed of support has fallen far behind, which has become a bottleneck restricting the efficiency of underground coal roadway development in China, resulting in serious misalignment of the excavation. At present, the domestic roadheaders only have a single tunneling function. The installation of bolts is completed using a hand-held single bolt machine, which is inefficient and labor-intensive. The anchoring and excavation are independent operating procedures and are undoubtedly anchoring operations. Bring many security risks.

How can we find an effective construction solution or special tunneling equipment that can realize simultaneous roadway excavation and bolt support, increase development efficiency, and completely eliminate potential safety hazards? The answer is yes, it is Sandvik's world's first wind bolting machine. The anchoring windlass is an integrated equipment for digging anchors developed on the basis of the wide drum cutting of the continuous miner, which truly achieves simultaneous cutting, loading, transportation and anchorage protection, full-section cutting, and one-time lane formation. Improve the efficiency of pioneering and ensure the safety of operators. This product is Sandvik's market-oriented, based on the actual needs of customers, while at the same time relying on its more than one hundred years of experience and achievements in the field of mining equipment, integrating the world's leading technology developed and launched the patented product, has been widely used Mine tunneling in the world.

Sandvik bolting machine is equipped with temporary support, retaining plate and anchor driver protection ceiling. Temporary support is installed behind the cutting drum to ensure operator's safety and equipment stability. The operation platform adopts optimized design. PLC control system, through the remote control operation, automatically controls the cutting height of the horizontal position and roadway, automatic control of the cutting and cutting process; cutting drum designed for low speed cutting, and assembly of high pressure water spray system and wet dust System, effective suppression of coal dust, dilution of gas. In addition, the bolting machine is integrated in the bolting machine, the airborne four-head bolting machine and the two bolting bolting machines facilitate the installation of the roof bolts, so that the empty roof spacing is the smallest, and the one-way lifting process can reach 2.4 meters; at the same time, the roof bolts The design can be inclined to drill, and it can realize the function of tunnel detection, gas detection and water layer detection at the same time.

The mooring machine incorporates a variety of functions. Its walking system, cutting system, loading and transportation system, and drilling and anchoring system are highly integrated and easy to operate. It requires only one remote controller to operate the driver and two anchor bolt drivers can perform boring. . The working process of the Sandvik Boring Machine can be divided into two parts: excavation and anchoring, which can be carried out simultaneously and in parallel.

After the mooring machine is in place, the remote controller operates the driver to change the device from the walking mode to the anchor mode and lower the rear stabilizer. Next, the driver of the bolting machine can perform a series of work on the bolting, specifically: placing the steel mesh and steel belt on the temporary support roof beam of the anchoring machine, and the driver of the bolting machine raises the roof beam and puts the steel strip and The mesh is lifted; before and after the top bolting machine is operated, the swinging rod is operated so that the two drilling frames accurately reach the drilling position, the drill rod is installed according to the height of the tunnel and the length of the designed anchor rod, simultaneously, the rotary and feed control rods are depressed, and the automatic Drill and flush. When the drill box touches the top limit switch, rotation feed and flushing are automatically stopped. Raise the feed lever, and the drill rod exits; place the resin roll into the hole according to the regulations and stir; after the resin solidifies, fasten the anchor; adjust the bolting machine to drill the next anchor. After the top bolt is completed, the bolting machine can be used to perform anchoring. At the same time, the dredging machine can carry out the cutting work of the roadway in the following order: lifting the cutting arm to the top of the roadway - cutting the trough - cutting down - retracting the cutting head to clear the bottom. After the anchoring work is completed, the driver of the bolting machine lowers and supports the roof beam and shifts to the walking mode. After the remote control driver retracts the stabilizer, it walks forward to the next cutting position.

When the anchoring operation is carried out at the same time as excavation, the efficiency of roadway development is significantly improved. Even under high ground pressure, extremely harsh geological conditions and poor roof and bed conditions, Sandvik can reach a monthly drilling depth. More than 700-1000 meters, the maximum can achieve more than 1,500 meters per month. In addition to the high efficiency of excavation, the most important is safety. Sandvik's anchor windlasses can completely eliminate employee injuries caused by roof fall, gangs, etc. The equipment has been widely favored by major domestic coal producers such as Shenhua Group, China Coal Group, Tongmei Group, Yankuang Group and Shandong Luneng Group, and is gradually being recognized and accepted by the national coal mining industry.