CN201991561U

CN201991561U - Reinforced coal bunker for coal mining area

Info

Publication number: CN201991561U
Application number: CN 201120069446
Authority: CN
Inventors: 王增全
Original assignee: Shanxi Coking Coal Group Co Ltd
Current assignee: Shanxi Coking Coal Group Co Ltd
Priority date: 2011-03-17
Filing date: 2011-03-17
Publication date: 2011-09-28
Anticipated expiration: 2021-03-17

Abstract

The utility model provides a reinforced coal bunker capable of preventing cracking and deformation for a coal mining area, which is characterized in that: a metal net is fixed on the inner side of the wall of the coal bunker, and a concrete layer is poured on the inner surface of the metal net; an outer clamping ring is fixed on the inner surface of the concrete layer, and a steel shed joint support of which the two ends are supported on the metal net is arranged in the concrete layer; and uniformly distributed reinforced ladder beams are fixed on the inner surface of the metal net and are connected with trays, and the anchor rods are also connected onto the trays and sequentially penetrate through the trays, the reinforced ladder beams, the metal net and the bunker wall. In the reinforced coal bunker, the coal bunker can be effectively reinforced, and the defects that the traditional coal bunker is easily deformed and cracked can be overcome. The reinforced coal bunker hasa reasonable and compact structural design, and can be transformed in short time that the coal bunker is maintained, so that the normal production of a mine can not be affected, and accidents can be effectively eliminated.

Description

The exploiting field, colliery reinforces coal bunker

Technical field

The utility model relates to a kind of coal bunker, is specially exploiting field, a kind of colliery and reinforces coal bunker.

Background technology

As everyone knows, coal bunker is the key link in the transportation system of down-hole, is special chamber, is subjected to geological conditions and mining influence very big, especially be arranged in the High Ground Stress Areas incompetent bed and moisture, the infiltration rock stratum in, the more yielding destruction of coal bunker wall.Traditional coal bunker is rectilinear cylinder coal bunker, adopts anchor net spray combined supporting mode.Owing to be subjected to the exploiting field water burst, geological structure changes, and waits that influence bulkhead cracking obscission serious, and the local groove that forms forms the trend that accelerates the failure, and in addition in the infiltration storehouse that comes off, often causes and scurries the building and block up the building, brings major hidden danger to safety in production.Safeguard coal bunker exist influence the production time long, frequency of maintenance height and perishable difficulty such as repair at problem repeatedly.So research is explored a kind of coal bunker that is suitable for fast and is safeguarded that reinforcing technique is the common difficulty of each mine.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of exploiting field, colliery of craze and transfiguration that prevents and reinforces coal bunker.

For addressing the above problem, the scheme that the utility model adopts is: exploiting field, a kind of colliery reinforces coal bunker, be fixed with wire lath in coal bunker bulkhead inboard, be cast with layer of concrete on the wire lath inner surface, the inner surface of layer of concrete is fixed with outer collar, layer of concrete inside is provided with the steel canopy combined supporting frame of two end supports on wire lath, be fixed with equally distributed reinforcing bar ladder beam on the inner surface of wire lath, the reinforcing bar ladder beam is connected with pallet, also be connected with anchor pole on the pallet, anchor pole passes pallet, reinforcing bar ladder beam, wire lath and bulkhead successively.

The utility model is a supporting overall structure, and coal bunker is effectively reinforced, and has overcome the defective of former coal bunker easy deformation and cracking.Reasonable in design, compactness can be utilized the interior transformation of short time of coal bunker maintenance, do not influence the ordinary production of mine, and the generation that can effectively stop accident.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among the figure, 1-bulkhead, 2-wire lath, 3-layer of concrete, the outer collar of 4-, 5-steel canopy combined supporting frame, 6-reinforcing bar ladder beam, 7-pallet, 8-anchor pole.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done and to be specified.

Exploiting field, a kind of colliery described in the utility model reinforces coal bunker, be fixed with wire lath 2 in coal bunker bulkhead 1 inboard, be cast with layer of concrete 3 on wire lath 2 inner surfaces, the inner surface of layer of concrete 3 is fixed with outer collar 4, layer of concrete 3 inside are provided with the steel canopy combined supporting frame 5 of two end supports on wire lath 2, be fixed with equally distributed reinforcing bar ladder beam 6 on the inner surface of wire lath 2, reinforcing bar ladder beam 6 is connected with pallet 7, also be connected with anchor pole 8 on the pallet 7, anchor pole 8 passes pallet 7, reinforcing bar ladder beam 6, wire lath 2 and bulkhead 1 successively.

Can be in the following ways during concrete enforcement, anchor pole 8 adopts Φ 20mm, strong twisted steel anchor rods such as the vertical muscle of the left-handed nothing of L=2000mm, array pitch 600 * 600mm, 20 on every circle, anchor pole 8 is vertical with bulkhead 1, and anchor pole 8 exposes 10-30mm.Pallet 7 specifications are: length * wide * dish-shaped supporting plate in thick=100 * 100 * 10 (mm).Wire lath 2 adopts the electric welding of Φ 15mm reinforcing bar to form, specification: length * wide=2000 * 1000mm, wire lath 2 laterally presses stubble to lay along the borehole wall, compressed steel muscle ladder beam 6: adopt Φ 15mm round steel, wide is 80mm, long 4000mm, and steel canopy combined supporting frame 5 is selected Φ 15mm steel pipe for use, outer collar 4 is a channel-section steel, and radian is consistent with the storehouse tube.The spray concrete: the material proportioning is a cement: sand: stone=1:2:2, and water/binder ratio 0.4-0.45, accelerating admixture volume are 5% of cement weight, and cement adopts portland cement, and label is not less than 425#, and sand, stone must clean.Spray the thick 100mm that is no more than, concrete strength is not less than C20.

Concrete work progress is: beats 8 of anchor poles, annotates resin anchor, and close plating net 2, compressed steel muscle ladder beam 6, top tray 7 nuts are installed steel canopy combined supporting frame 5, and outer collar 4 is fixed with nut on the card, and whole whitewashing forms layer of concrete 3.

Claims

1. exploiting field, a colliery reinforces coal bunker, it is characterized in that: be fixed with wire lath (2) in coal bunker bulkhead (1) inboard, be cast with layer of concrete (3) on wire lath (2) inner surface, the inner surface of layer of concrete (3) is fixed with outer collar (4), layer of concrete (3) inside is provided with the steel canopy combined supporting frame (5) of two end supports on wire lath (2), be fixed with equally distributed reinforcing bar ladder beam (6) on the inner surface of wire lath (2), reinforcing bar ladder beam (6) is connected with pallet (7), also be connected with anchor pole (8) on the pallet (7), anchor pole (8) passes pallet (7) successively, reinforcing bar ladder beam (6), wire lath (2) and bulkhead (1).