CN2071248U

CN2071248U - Slurry filling device for well wall

Info

Publication number: CN2071248U
Application number: CN 89214555
Authority: CN
Inventors: 常本凤
Original assignee: GUDONG COAL MINE ZHENJIANG
Current assignee: GUDONG COAL MINE ZHENJIANG
Priority date: 1989-07-27
Filing date: 1989-07-27
Publication date: 1991-02-13

Abstract

The utility model relates to a slurry filling device behind mine wall, which collects a slurry filling tube head, a slurry stopping plug, a guide tube, a control valve, a pressure relief valve, a safety valve and a handlebar into a whole. The utility model has simple structure, safe operation, quick speed, high efficiency, small size and low cost. The utility model is suitable for various metal and solid non-metal mines, especially suitable for intensive stationing slurry filling engineering behind mine wall.

Description

Slurry filling device for well wall

The utility model relates to a kind of mine wall grouting behind shaft or drift lining device.

After the mine roadway became the lane, because the restriction and the Well-wall sealer poor performance of hydrogeological conditions, regular meeting underground water occurred at some interval and sees through the borehole wall, flows in the pit shaft, and adopting borehole wall grouting behind shaft or drift lining water blockoff is a kind of effective method.In addition, the permanent roadway of mine also can be reinforced supporting with grouting method.At present, the construction process of slip casting is to connect Grouting Pipe by the grouting pump outlet, connects stop grouting plug by Grouting Pipe again, and protective device is the safety valve that has utilized the slip casting pump housing self, and withstand voltage degree promptly is the withstand voltage degree of the pump housing.This grouting equipment has following shortcoming: (1) present stop grouting plug is to utilize the bolt extruding when working, the principle that makes rubber produce lateral expansion reaches only starches purpose, but this method is relatively harsher to the requirement in slip casting aperture, otherwise, when grouting pressure is big, may take off pipe and be forced to stop slip casting; (2) protective device only is the safety valve that has utilized the pump housing self, and its withstand voltage degree has been subjected to certain restriction, takes off the phenomenon of pipe, booster and can not stop, and safety in production has been caused threat; (3) only outlet of slip casting tube head is restricted the sectional area of slurry, lateral diffusion-capability a little less than, thereby the efficient of grouting for water blocking is not high.

At above deficiency, the utility model has designed and has a kind ofly focused slurry tube head, stop grouting plug and safety valve, pressure relieving valve, handle is the mine wall grouting behind shaft or drift lining device of one.

Below in conjunction with accompanying drawing the utility model is described in detail:

Accompanying drawing 1: the structural representation of mine wall grouting behind shaft or drift lining device.

Accompanying drawing 2: the user mode schematic diagram of mine wall grouting behind shaft or drift lining device.

Wherein: 1, slip casting tube head 2, stop grouting plug 3, conduit

4, reducing joint 5, handle 6, control valve

7, safety valve 8, four-way connection 9, flange

10, pressure relieving valve 11, tap hole 12, spout hole

13, saddle bar

The slip casting tube head is threaded by a reducing joint with an end of conduit, the outer wall cover of slip casting tube head has the rubber stop grouting plug with chamfering, be drilled with several tap holes on the tube wall of slip casting tube head, welded a pair of handle in the reducing joint, safety valve and pressure relieving valve are threaded in the stage casing of conduit by a four-way connection, the stage casing of the conduit control valve that also has been threaded, the other end of conduit has welded a ring flange. During construction, with air drill boring, then with the external grouting pipe of ring flange, make in the slurries inflow catheter earlier, from slip casting tube head and tap hole output injection thereof to the rock stratum. Because slip casting tube head outer wall cover has the rubber stop grouting plug with chamfering, make stop grouting plug directly in the patchhole, stop grouting plug blocks the slit under the relative extruding of slip casting tube head and slip casting hole wall, spills so that slurries are difficult. When grouting pressure surpassed design margin, safety valve was opened automatically, and a part of slurries are discharged from spout hole, thereby had reduced the pressure in the Grouting Pipe, and in the time of in pressure decreased arrives the design code scope, safety valve is autoshutdown again. When slip casting finishes or interrupt, need to take out slurry casting machine, but still there is certain pressure in the slurries in the Grouting Pipe, at this moment earlier control valve are closed, and open pressure relieving valve again, can discharge the slurries in the grouting pipe, make pressure decreased. Handle on the slurry casting machine is convenient to guide and support at ordinary times, can withstand handle with the splayed configuration saddle bar during construction, utilize the principle of reaction force to improve compression resistance, thus prevented since vibration and grouting pressure excessive cause take off the pipe phenomenon.

The utility model has following advantage: (1) because the front end of stop grouting plug has chamfering, and with behind the drill hole of drilling machine directly in the patchhole, the principle that makes it to produce transverse compression during work reaches the purpose of grouting, grouting successful. (2) protective device comprises safety valve, pressure relieving valve, and handle three parts, both can change according to withstand voltage needs the spring of safety valve, makes it automatic release of pressure with the production that ensures safety; Can at any time open pressure relieving valve again, make pressure decreased, easy to operate; Also can utilize handle to set up saddle bar, thereby improve compression resistance, stop to take off the pipe phenomenon. (3) tube wall at the slip casting tube head is drilled with several tap holes, has enlarged the sectional area that slurries flow during slip casting, thereby has increased the diffusion radius of slurries along the borehole wall, has improved water blockoff efficient.

The utility model is simple in structure, handling safety, rapidly and efficiently easy to carry, volume is little, cost is low, remarkable in economical benefits, after a certain mine uses only one of draining electricity consumption just save 1.04 ten thousand yuan/year of the electricity charge, and reduced the maintenance capacity of pit shaft.The utility model is applicable to each metalloid and the nonmetal mine of solid, is particularly useful for after the mine wall intensity Grouting engineering of layouting.

Claims

A kind of mine wall grouting behind shaft or drift lining device is characterized in that it is one that slurry casting machine is focused slurry tube head [1], stop grouting plug [2], conduit [3], safety valve [7], control valve [6], pressure relieving valve [10] and handle [5]:

(1), the slip casting tube head is threaded by a reducing joint [4] with an end of conduit, the outer wall of slip casting tube head is with the rubber stop grouting plug with chamfering, is drilled with several tap holes [11] on the tube wall of slip casting tube head, has welded a pair of handle in the reducing joint;

(2), safety valve and pressure relieving valve be threaded in the stage casing of conduit by a four-way connection [8], the stage casing of the conduit control valve that also has been threaded;

(3), the other end of conduit has welded a flange [9].