CN-224215973-U - Detonation excitation phase change rock breaking device

CN224215973UCN 224215973 UCN224215973 UCN 224215973UCN-224215973-U

Abstract

The application provides a detonation-excited phase-change rock breaking device, which comprises a liquid storage body arranged in a blast hole, wherein the liquid storage body is expandable, an overburden layer is arranged above the liquid storage body in the blast hole, an absorber and an excitation device are arranged in the liquid storage body, an electronic detonator and an emulsion explosive are arranged in the excitation device, the electronic detonator is provided with a detonating cord extending out of the blast hole, a transfusion tube and an exhaust tube are also arranged, the lower end of the transfusion tube is inserted into the lower end of the liquid storage body, the lower end of the exhaust tube is communicated with the upper end of the liquid storage body, a liquid phase-changeable combustion improver is filled into the absorber through the transfusion tube, and the absorber absorbs the combustion improver, so that the problems of low detonation time precision and poor blasting effect caused by insufficient gasification of liquefied air are solved.

Inventors

LUO CHUJUN
LIU SHANGGE
YANG QING
HE WENTAO
Yuan Zhanquan
LU JIAXIN
GUO GUANGWEN
SUN HAIMING
LU WENBO
TAN KAIYAN
LAN GUOYUAN
HONG JUN
Ai chan
GUO FUZHONG

Assignees

中国葛洲坝集团股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250528

Claims (8)

1. A detonation excitation phase-change rock breaking device is characterized by comprising a liquid storage body (1) arranged in a blast hole (7), wherein the liquid storage body (1) is expandable, a soil covering layer (10) is arranged above the liquid storage body (1) in the blast hole (7), an absorber (2) and an excitation device (3) are arranged in the liquid storage body (1), an electronic detonator (301) and an emulsion explosive (302) are arranged in the excitation device (3), the electronic detonator (301) is provided with a detonating cord (9) extending out of the blast hole (7), an infusion tube (5) and an exhaust tube (6) are further arranged, the lower end of the infusion tube (5) is inserted into the lower end of the liquid storage body (1), the lower end of the exhaust tube (6) is communicated with the upper end of the liquid storage body (1), a liquid phase-change combustion improver (14) is filled into the absorber (2) through the infusion tube (5), and the absorber (2) absorbs the combustion improver (14).
2. The detonation excitation phase change rock breaking device according to claim 1, wherein the absorber (2) is of a hollow cylindrical structure and is sleeved outside the infusion tube (5), and the absorber (2) is provided with a porous fibrous outer layer.
3. The detonation excitation phase change rock breaking device according to claim 1 is characterized in that the infusion tube (5) is made of conductive materials, one end of the infusion tube (5) extending out of the explosion hole (7) is wound with a grounding wire (1101), the end of the grounding wire (1101) is provided with a grounding rod (11), and the grounding rod (11) is inserted into the ground.
4. The detonation-excited phase-change rock breaking device according to claim 1, characterized in that the combustion improver (14) is liquid oxygen or liquid air.
5. The detonation excitation phase change rock breaking device according to claim 1 is characterized by further comprising an orifice frame (12), wherein a soil retaining plate (8) is arranged at the lower end of the orifice frame (12), the upper end of the liquid storage body (1) is connected with the soil retaining plate (8), and the soil covering layer (10) covers the upper portion of the soil retaining plate (8).
6. The detonation excitation phase change rock breaking device according to claim 5, wherein the upper end of the liquid storage body (1) is provided with an opening and is provided with a base plate (4) at the opening, the lower end of the base plate (4) is provided with a plurality of lower extending rods (401) along the circumferential direction, the absorber (2) is sleeved on the lower extending rods (401), the center of the base plate (4) is provided with a hollowed-out hole (402), the hollowed-out hole (402) is provided with a sealing seat (801), the upper end of the sealing seat (801) is connected with a soil retaining plate (8), the exhaust pipe (6) penetrates through the soil retaining plate (8) to enable the lower end to be connected with the sealing seat (801), the lower end of the sealing seat (801) is provided with a hollow rod (805), the excitation device (3) is sleeved on the hollow rod (805), the sealing seat (801) is further provided with a transition air passage (806), the upper end and the lower end of the transition air passage (806) are respectively communicated with the exhaust pipe (6) and the liquid storage body (1), and the infusion pipe (5) and the detonation wire (9) are arranged in the exhaust pipe (6).
7. The detonation excitation phase change rock breaking device according to claim 6 is characterized in that an exhaust pipe (6) is in sliding sleeve connection with a soil retaining plate (8), a plurality of guide blocks (803) are arranged at the lower end of the soil retaining plate (8) along the circumferential direction, arc-shaped guide grooves (804) are arranged in the guide blocks (803), the lower ends of the arc-shaped guide grooves (804) face a sealing seat (801), the upper ends of the arc-shaped guide grooves (804) face the inner wall of a blasting hole (7), a plurality of deformable anchors (802) are arranged at the upper ends of the sealing seat (801) along the circumferential direction, the upper ends of the anchors (802) are inserted into the arc-shaped guide grooves (804), a slidable floating sleeve (809) is sleeved on a hollow rod (805), a hole plug (810) is arranged at the upper end of the floating sleeve (809), a connecting air hole (811) is arranged between a transition air passage (806) and an inner cavity of a liquid storage body (1), and the hole plug (810) is used for plugging the connecting air hole (811).
8. The detonation excitation phase change rock breaking device according to claim 7 is characterized in that an indication sleeve block (13) is arranged at the upper end of the exhaust pipe (6).

Description

Detonation excitation phase change rock breaking device Technical Field The utility model relates to the field of blasting construction, in particular to a detonation-excited phase-change rock breaking device. Background In blasting engineering, accidents caused by explosive explosion often occur each year, and many environmental problems such as rock fragments, dust flying and the like are brought about while safety problems are brought about, so that environmental pollution is caused. The non-blasting rock breaking technology such as liquefied air rock breaking is the key technology for research in recent years along with a plurality of serious problems caused by explosive blasting, and compared with the traditional blasting method, the non-blasting rock breaking method has the advantages of small noise, high safety and small pollution, solves the rock breaking requirements of a plurality of special conditions and limited construction operation conditions, has good controllability, and provides more opportunities for realizing green rock breaking. However, the liquefied air rock breaking has the problems of low detonation time precision, poor blasting effect caused by insufficient liquefied air gasification and the like. Disclosure of utility model The utility model provides a detonation-excited phase-change rock breaking device, which solves the problems of low detonation time precision and poor blasting effect caused by insufficient gasification of liquefied air in the process of breaking rock by liquefied air. In order to solve the technical problems, the detonation-excited phase-change rock breaking device comprises a liquid storage body arranged in a blasting hole, wherein the liquid storage body is expandable, a soil covering layer is arranged above the liquid storage body in the blasting hole, an absorber and an excitation device are arranged in the liquid storage body, an electronic detonator and an emulsion explosive are arranged in the excitation device, the electronic detonator is provided with a detonating cord extending out of the blasting hole, an infusion tube and an exhaust tube are further arranged, the lower end of the infusion tube is inserted into the lower end of the liquid storage body, the lower end of the exhaust tube is communicated with the upper end of the liquid storage body, a liquid phase-changeable combustion improver is filled into the absorber through the infusion tube, and the absorber absorbs the combustion improver. In the preferred proposal, the absorber is of a hollow cylindrical structure and is sleeved outside the infusion tube, and the absorber is provided with a porous fibrous outer layer. In the preferred scheme, the transfer line is conductive material, and the transfer line stretches out the one end winding of blasthole and has the earth connection, and the earth connection tip is equipped with the earth bar, and the earth bar inserts ground. In a preferred embodiment, the combustion improver is liquid oxygen or liquid air. In the preferred scheme, still include the drill way frame, drill way frame lower extreme is equipped with the soil retaining plate, and the liquid storage upper end is connected with the soil retaining plate, and the earthing layer covers the soil retaining plate top. In the preferred scheme, the liquid storage upper end opening and be equipped with the base plate at the opening part, the base plate lower extreme is equipped with a plurality of lower extension bars along circumference, the absorber cup joints on lower extension bar, base plate central authorities are equipped with the fretwork hole, fretwork hole department is equipped with the seal seat, seal seat upper end and soil retaining plate are connected, the blast pipe passes the soil retaining plate so that the lower extreme is connected the seal seat, seal seat lower extreme is equipped with hollow pole, excitation device cup joints on hollow pole, seal seat still is equipped with transition air flue, upper and lower extreme intercommunication blast pipe and liquid storage body respectively, transfer line and detonating cord are established in the blast pipe. In the preferred scheme, blast pipe and fender board slip cup joint, fender board lower extreme is equipped with a plurality of guide blocks along the circumference, is equipped with arc type guide slot in the guide block, arc type guide slot lower extreme towards the seal seat, arc type guide slot upper end towards the blast hole inner wall, and seal seat upper end is equipped with a plurality of flexible anchor nails along circumference, and the anchor nail upper end inserts in the arc type guide slot, still overlaps on the hollow pole and has slidable floating cover, and floating cover upper end is equipped with the hole stopper, is equipped with the connection gas pocket between transition air flue and the liquid reservoir inner chamber, and the hole stopper is used for shutoff connection gas pocket. In the preferred sc