A spray-mixing system for rock boring machine
A roadheader and rock technology, which is applied in the field of spray-mixing system for rock roadheaders, can solve problems such as unsatisfactory roadheaders, large distance between road wheels, and easy mutual interference, etc., and achieves convenient transportation and installation, increased spraying length, and reduced distance Effect
Active Publication Date: 2020-12-29
RAILWAY CONSTR HEAVY IND XINJIANG CO LTD +1
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Problems solved by technology
The open rock roadheader is generally equipped with two sets of spray-mixing equipment, which are usually arranged on the same spray-mixed bridge structure, which is easy to interfere with each other, and the longitudinal length of the spray-mixed system is often more than 30m, resulting in a long distance between the front and rear walking wheels of the spray-mixed bridge. Large (generally about 20m), which cannot satisfy the excavation of roadheaders in tunnels with small turning radius
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[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereby.
[0027] Such as Figure 1 to Figure 3 As shown, the spray mixing system for the rock boring machine in this embodiment includes a spray mix bridge frame 1 and a spray assembly 2 . Among them, the spraying assembly 2 is installed on the spraying bridge 1, which is used to spray concrete to the sprayed surface to form a concrete support layer; the spraying bridge 1 is set as two sets of bridge segments 11, and the two sets of bridge segments 11 are along the length direction of the tunnel. arrangement, and the adjacent bridge segments 11 are hinged to each other; the injection assemblies 2 are also arranged in two groups, and the injection assemblies 2 and the bridge segments 11 are arranged in one-to-one correspondence. In other embodiments, the number of bridge ...
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The invention provides a spray mixing system for a rock heading machine. The spray mixing system comprises a spray mixing bridge frame and injection assemblies, and the injection assemblies are mounted on the spray mixing bridge frame. The spray mixing bridge frame comprises at least two sets of bridge frame segments arranged in the length direction of a tunnel, and every two adjacent bridge framesegments are hinged to each other. The number of the injection assemblies is the same as the number of the bridge frame segments, and the injection assemblies and the bridge frame segments are disposed in a one-to-one correspondence mode. The spray mixing system for the rock heading machine has the advantages of small turning radius and long injection length.
Description
technical field [0001] The invention relates to the field of excavation, in particular to a spray-mixing system for a rock excavation machine. Background technique [0002] The rock boring machine is usually equipped with a concrete spraying system, so as to realize the shotcrete supporting operation of the tunnel while the boring machine is driving. The working principle of the concrete spraying is to transport the pre-mixed concrete to the nozzle of the wet spraying machine through the pumping system, and form a material bundle after being mixed with an accelerator, and spray it to the sprayed surface under the action of high-pressure gas. The coagulant makes the concrete solidify and harden quickly, thus forming a concrete support layer, which plays the role of support and protection. [0003] However, when the open rock roadheader excavates in a section with a small turning radius, the turning radius of the spray mixing system components of the roadheader is often limit...
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IPC IPC(8): E21D11/10
CPCE21D11/10
Inventor 刘飞香程永亮郑大桥彭正阳邵质中龙斌韩佳霖孙鑫健杨慧星
Owner RAILWAY CONSTR HEAVY IND XINJIANG CO LTD