SU950930A1 - Working-face filling-up pipeline - Google Patents

Description

(54) BOTTOM HANDLING PIPE

one

The invention relates to the mining industry and can be used to feed a filling material into the mined-out space when mining coal seams with mechanized complexes.

A downhole backfill pipe is known, including pipe sections mounted inside the support sections, and devices for remotely connecting pipe sections 1.

The disadvantage of this pipeline is the presence of a device for remote connection and disconnection in each section of the lining, which leads to the need for maintenance of its workers, as well as the location of the pipeline inside the lining. This prevents the support from moving to the bottom when moving the filling material in the pipeline so that it does not get into the working space. As a result, the productivity of a mechanized coal mining complex in lava decreases. In addition, the pipeline, located inside the lining, interferes with the movement of people and the movement of the air jet, which affects the development of thin layers.

Also known is the downhole backfill pipelines, including pipe sections, fitted in the fence of the mechanized support of the clearing face and reinforced with wear-resistant liners 2.

The disadvantages of this pipeline are the complexity of its design, since it is an inseparable part of the protection of mechanized supports, and the joining of pipe sections in case of violation of the linear arrangement of the support sections is unsatisfactory.

. The aim of the invention is to simplify the design and improve the joining of pipes in case of violation of the straight line arrangement of the mechanized support sections.

Claims (2)

The goal is achieved by the fact that in the backfill pipe, the pipe sections are 2 in length (j in the form of separate enclosing elements of mechanized lining sections with oblique cuts, moreover, one end of them is attached to the hinge support sections, and the others - by means of springs. 3 bottomhole backfill pipe, mounted in the mechanized lining section, side view of the lining section, and Fig. 2 is a section A-A in Fig. 1 in Fig. 3 is a diagram of the work of the backfill pipeline in a complex with a mechanized support, view in the plane of the reservoir; Fig. 4 - cross section BB in Fig. 3. The stowing pipe consists of pipes 1, made in the form of separate fencing elements of the mechanized support sections 2. In general, the fence of the sections of the support consists of two parts: hollow 1 and top 3 in the form of a shield. (pipe sections) is attached to the base of the support section by means of a hinge 4 at one end and held at the other end 5. The ends of the pipe sections 1 have oblique cuts for their automatic joining. The stacking pipe operates as follows. The stowage material is supplied from the ventilation drift, via pipeline 1, which is designed as a hollow support. In the places of laying, when moving the lining section 2 to the face, an automatic disconnection of the pipeline takes place due to the transverse displacement of its segments. This results in a frontal release of backfill material. The bookmark is made after moving each section, i.e. with the appearance of free space on the size of one section. In the presence of fences, no backfill material is formed in a limited volume and a higher bookmark density is achieved. After shifting the next lining section, the pipeline automatically joins due to the alignment of the ends of its segments. In the case of non-linearity of the lining section, the connection of the pipeline is provided by hinging one end of the pipe section in the lining section and holding the other end with a spring. Such an implementation of the downhole pipeline allows to increase the productivity of the mechanized complex by combining in time the excavation of the mineral and laying the mined space. In addition, by placing the filling pipeline in the lining fences, the conditions for moving people in the working space are significantly improved, labor safety is improved, and the conditions for ventilation are improved, especially when developing thin layers. The greatest effect is achieved when developing steep and steeply inclined seams. Claims Downhole backfill pipe including pipe sections mounted in the enclosure of mechanized roof support sections, characterized in that, in order to simplify the design and improve the joining of pipe sections in violation of the linear arrangement of sections, pipe sections are made in the form of separate wall elements of the mechanized sections. lining with oblique cuts, with some of their ends attached to the sections of the support sharnarno, and others - by means of a socket. Sources of information taken into account in the examination 1.Zhukov V.E. and others. The choice of technology for extracting coal reserves under the floodplain of the Samara River - Coal of Ukraine, 1980, № 3, p. 70 2. USSR author's certificate number 378629, cl. E 21 D 19/02; 191 (prototype). 7 FIG. one -X at FIG. g