Charging equipment and charging method for accumulated water deep hole blasting construction under special environmental conditions

Abstract

The invention discloses charging equipment and charging method for accumulated water deep hole blasting construction under special environmental conditions, and belongs to the technical field of blasting engineering construction.The charging equipment comprises a main pile casing, the top of the main pile casing is connected with a plurality of auxiliary pile casings, and one end of the main pile casing and one end of each auxiliary pile casing are each provided with a direct connecting piece in an adhesive mode. The inner diameter of the direct connection is the same as the outer diameter of the main pile casing and the outer diameter of the auxiliary pile casings, the main pile casing and the auxiliary pile casings are directly connected with the two auxiliary pile casings, rope hanging holes for fixing lifting ropes are symmetrically formed in the upper end of the main pile casing, two rectangular sliding grooves and two inserting holes are formed in the lower end of the main pile casing, and two supports are arranged in the main pile casing. Explosive is directly, evenly and continuously loaded into a drill hole through the pile casing, the explosive loading density is guaranteed, the structure and the manufacturing process are simplest, construction operation is more convenient, explosive loading is safer, the speed is higher, and the comprehensive cost is lower; the labor intensity can be effectively reduced, the safety performance of operation is improved, and the work efficiency is improved.

Description

Technical Field

[0001] The invention relates to charging equipment and a charging method for waterlogged deep hole blasting construction, in particular to charging equipment and a charging method for waterlogged deep hole blasting construction under special environmental conditions, and belongs to the technical field of blasting engineering construction. Background Art

[0002] The deep hole blasting method is widely used in open-pit mining due to its unique advantages. Its blasting effect depends on many factors, and whether the designed charge can be loaded into the borehole is an important factor. Water accumulation in the borehole caused by atmospheric precipitation and groundwater, especially in some boreholes where mechanized charging cannot be used, will directly affect the charge amount.

[0003] In order to meet the design charging requirements, compressed air drainage charging, drilling pumping drainage charging, blowing water drainage charging, direct pressure charging and hoisting charging are often adopted. However, for boreholes with large groundwater or during the rainy season, where low-lying fissures are developed, the above charging methods are difficult to meet the charging needs. The charging speed is slow and the explosives are not easy to sink, resulting in deformation of the charge roll, charging not reaching the bottom of the borehole, discontinuous charging and other charging quality problems that cannot meet the requirements.

[0004] The occurrence of the above situation is likely to cause an increase in the foundation and an increase in the rate of large blocks, which will greatly affect the blasting effect, and seriously cause adverse consequences such as blind shots or explosion refusal, which will bring troubles to the blasting construction, increase the difficulty of construction, and also leave serious safety hazards.

[0005] A Chinese patent application for a method for charging deep-water blastholes with slurry in open-pit mines (202210701659.4) discloses a method for charging deep-water blastholes with slurry in open-pit mines, which only solves the problems of charge deformation, discontinuous charging and failure to reach the bottom of the borehole, and has problems such as slow charging speed and high construction cost; a Chinese patent application for an explosive conveyor for deep-hole blasting operations (201821313125.X) discloses an explosive conveyor for deep-hole blasting operations. Although it solves the problems of charge deformation, discontinuity and failure to reach the bottom of the hole and the construction efficiency problems of slow charging speed, it still has defects such as the troublesome manufacture of the conveyor, inconvenient operation, high labor intensity and high cost. Summary of the invention

[0006] In view of the above problems existing in the prior art, the present invention provides a charging device and a charging method for water-logged deep hole blasting construction under special environmental conditions.

[0007] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0008] A charging equipment for deep hole blasting construction under special environmental conditions, comprising a main casing, a secondary casing connected to the top of the main casing, and the secondary casing being provided with a plurality of casings, one end of the main casing and the secondary casing being bonded with a direct connection, the inner diameter of the direct connection being the same as the outer diameter of the main casing and the secondary casing, the main casing and the secondary casing being directly connected to the two secondary casings, the upper end of the main casing being symmetrically provided with a hanging rope hole, the lower end of the main casing being provided with two rectangular slide grooves and two plug holes, two supports being provided inside the main casing, the two supports being respectively inserted into the opposite rectangular slide grooves and the plug hole, one end of the support being inserted into the plug hole, and the other end of the support sliding up and down in the rectangular slide groove, and the annular limit at one end of the support close to the rectangular slide groove and the hanging rope hole are both connected with a hanging rope.

[0009] Preferably, the main casing, the secondary casing and the pipe are PVC pipes.

[0010] Preferably, the rectangular chute and the insertion hole are symmetrically distributed with respect to the cross section of the main casing, and the distance between adjacent rectangular chute and the insertion hole is 1 / 3D, where D is the inner diameter of the main casing.

[0011] Preferably, there are four lifting ropes in total, one end of each lifting rope is connected to the traction assembly, and the other end of each lifting rope is respectively connected to the main casing and the support. In the charged state, the lifting rope connected to the support is not subjected to stress, and the stressed lifting rope is arranged in the casing.

[0012] Preferably, the traction assembly includes two brackets and a support rod arranged between the two brackets, one end of the support rod passes through the bracket and is connected to a turning handle, four pulleys are installed on the support rod, and the support rod, the turning handle and the pulley are an integral whole.

[0013] The charging method of charging equipment for waterlogged deep hole blasting construction under special environmental conditions includes the following steps:

[0014] Step 1: Start charging from the first row of holes close to the excavation free surface in the area to be blasted;

[0015] Step 2: Select the hole to be charged. The outer diameter of the casing should be 10 mm smaller than the diameter of the drilled hole. If the casing can be inserted into the bottom of the hole, it is determined that the drilled hole is intact. If it cannot be inserted, it is still not inserted after repairing the hole and is treated as a waste hole.

[0016] Step 3: Select the length of the main casing according to the hole depth, assemble the support, suspension rope and main casing, one person holds the main casing and the other loads the explosives;

[0017] Step 4: Load part of the explosive roll, and then insert the main casing into the borehole. Because there is water in the hole, the main casing slowly sinks, and the blaster quickly loads the explosives;

[0018] Step 5: When the main casing is about to be filled with explosives, the casing holder inserts the uninstalled end of the auxiliary casing into the installed end of the main casing, continues to load explosives to the designed charge, and continues to plug in the auxiliary casing until the explosives are delivered to the bottom of the hole;

[0019] Step 6: When the charge is delivered to the bottom of the hole, the barrel holder first lifts the unloaded rope connected to the support by hand to make the support slide to the top of the rectangular chute. Then, the charge falls, and then the hand-cranked traction assembly pulls the rope hanging on the main casing, the casing rises, and the secondary casings are pulled out in turn until the main casing is lifted out of the hole, ready for the next hole charging construction;

[0020] Step 7: After the casing is pulled out, circulate until all the holes are filled.

[0021] The beneficial technical effects of the present invention are as follows: according to the charging equipment and charging method for deep hole blasting construction under special environmental conditions of the present invention, the explosives are directly and evenly and continuously loaded into the borehole through the casing, thereby ensuring the charging density, having the simplest structure and manufacturing process, making the construction operation more convenient, the charging safer, the speed faster, and the overall cost lower; it can effectively reduce the labor intensity, improve the safety performance of the operation, and improve the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the main casing structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the secondary casing structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the supporting structure of the present invention;

[0026] Figure 5 It is a side view of the main casing of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the traction assembly of the present invention.

[0028] In the figure: 1. main casing; 2. auxiliary casing; 3. lifting rope; 4. traction assembly; 401. bracket; 402. rope pulley; 403. support rod; 404. handle; 5. hanging rope hole; 6. direct; 7. rectangular slide groove; 8. socket; 9. support; 901. support shaft; 902. columnar limit; 903. annular limit. DETAILED DESCRIPTION

[0029] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0030] Embodiment 1:

[0031] like Figure 1 to Figure 6 As shown, the charging equipment for deep hole blasting construction under special environmental conditions provided by this embodiment includes a main casing 1, a secondary casing 2 is connected to the top of the main casing 1, and multiple secondary casings 2 can be installed. Two supports 9 are provided inside the main casing 1, and one end of the main casing 1 and the secondary casing 2 are both bonded with a direct 6. The inner diameter of the direct 6 is the same as the outer diameter of the main casing 1, and the outer diameters of the main casing 1 and the secondary casing 2 are the same. When connecting, the secondary casing 2 is inserted into the direct 6, which is convenient for quickly connecting multiple secondary casings 2. The main casing 1 and the secondary casing 2 are connected by the direct 6, and the multiple secondary casings 2 are also connected by the direct 6; the main casing 1, the secondary casing 2 and the direct 6 are PVC pipes or other materials that are easy to operate and make.

[0032] The main casing 1 has three lengths of 4 meters, 5 meters, and 6 meters, which can be selected according to the hole depth; the main casing 1 is connected directly to the main casing 1 or two auxiliary casings 2, and a hanging rope hole 5 for fixing a hanging rope 3 is provided at the upper end of the main casing 1. The hanging rope hole 5 is used to pull out the auxiliary casing 2 and the main casing 1 after a problem occurs during the dosing process. The hanging rope 3 fixed on the hanging rope hole 5 will not cause the medicine bag to fall when the whole is pulled out, and it is more convenient to pull out the casing after the medicine is loaded, and two hanging rope holes 5 are symmetrically provided, which is convenient for passing two hanging ropes 3 Smooth lifting; two rectangular slots 7 and two plug holes 8 are provided at the lower end of the main casing 1, which are symmetrically distributed relative to the cross section of the main casing 1. The distance between adjacent rectangular slots 7 and plug holes 8 is 1 / 3D, where D is the inner diameter of the main casing 1. One end of the support 9 is inserted into the plug hole 8, and the other end of the support 9 can slide upward along the slot in the rectangular slot 7. The lifting rope 3 is connected to one end of the support 9 close to the rectangular slot 7. When pulled, one end of the support 9 is driven to slide in the rectangular slot 7, and at this time, the other end of the support 9 is separated from the plug hole 8.

[0033] The support 9 includes a support shaft 901, a cylindrical limit 902 and an annular limit 903; the cylindrical limit 902 and the annular limit 903 fix the support position so that one end of the limit ring 903 of the support 9 slides upward along the rectangular slide groove 7; the annular limit 903 is used to connect with the suspension rope 3, and the connection is more convenient; the diameter of the support shaft 901 is the same as the aperture of the socket 8, the width of the rectangular slide groove 7 is the same as the diameter of the support shaft 901, and the socket 8 is 10 mm lower than the bottom of the slide groove 7; one end of the support shaft 901 is inserted into the rectangular slide groove 7, and the annular limit 903 fixes the end of the support shaft 901 to be flush with the outer wall of the main casing; the other end of the support shaft 901 is inserted into the socket 8, and the cylindrical limit 902 fixes the end of the support shaft 901 to be flush with the outer wall of the main casing; it is convenient to disengage the support shaft 901 from the socket 8 when pulling, and the other end slides upward along the slide groove, and the charge falls. A cylindrical limiter 902 is installed on one end of the support shaft 901 inserted into the socket 8, and a portion is reserved for inserting into the socket 8; an annular limiter 903 is installed on one end of the support shaft 901 inserted into the slide groove 7, and a portion is reserved for inserting into the slide groove 7.

[0034] There are four lifting ropes 3 in total, and one end of the lifting ropes 3 is connected to the main casing 1 and the support 9 respectively, and the other end is connected to the traction assembly 4. Pulling the lifting ropes 3 through the traction assembly 4 is more stable and labor-saving, reduces the labor intensity during charging, and improves the charging speed; and the traction assembly 4 includes two brackets 401 and a support rod 403 arranged between the two brackets 401, one end of the support rod 403 passes through the bracket 401 and is connected to a turning handle 404, and four pulleys 402 are installed on the support rod 403, which are respectively connected to multiple lifting ropes 3, and the support rod 403, the turning handle 404, and the pulley 402 are a whole.

[0035] Embodiment 2:

[0036] like Figure 1 to Figure 6 As shown, the charging method of charging equipment for deep hole blasting construction under special environmental conditions provided in this embodiment is as follows:

[0037] Step 1: Start charging from the first row of holes close to the excavation free surface in the area to be blasted;

[0038] Step 2: Select the hole to be charged. The outer diameter of the casing should be 10 mm smaller than the diameter of the drilled hole. If the casing can be inserted into the bottom of the hole, it is determined that the drilled hole is intact. If it cannot be inserted, it still cannot be inserted after repairing the hole, and it is treated as a waste hole.

[0039] Step 3: Select the main casing 1 according to the hole depth, assemble the support 9, the hanging rope 3 and the main casing 1, one person holds the main casing 1, and one person loads the explosives;

[0040] Step 4: Load 2 to 4 partial charge rolls, and then insert the main casing 1 into the borehole. Because there is water in the hole, the main casing 1 slowly sinks, and the blasting worker quickly loads the charge;

[0041] Step 5: When the main casing 1 is about to be filled with explosives, the person holding the casing inserts the end of the auxiliary casing 2 without the direct 6 into the end of the main casing 1 with the direct 6, continues to charge until the designed charge, and continues to plug the auxiliary casing 2 to deliver the explosives to the bottom of the hole;

[0042] Step 6: When the charge is delivered to the bottom of the hole, the barrel holder first uses the unstressed lifting rope 3 connected to the support 9 to make the support 9 separate from the insertion hole 8 and slide along the rectangular slide 7 to the top of the groove. Then, the charge falls, and then the hand-cranked traction component 4 pulls the stressed lifting rope 3 hanging on the main casing 1, the casing rises, and the secondary casing 2 is pulled out in turn until the main casing 1 is lifted out of the hole, ready for the next hole charging construction;

[0043] Step 7: After the casing is pulled out, circulate until all the holes are filled.

[0044] To sum up, in this embodiment, according to the charging equipment and charging method for deep hole blasting construction with water accumulation under special environmental conditions of this embodiment, the explosives are directly and evenly and continuously loaded into the borehole through the casing, thereby ensuring the charging density, having the simplest structure and manufacturing process, making the construction operation more convenient, the charging safer, the speed faster, and the overall cost lower; it can effectively reduce labor intensity, improve the safety performance of operation, and improve work efficiency.

[0045] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. A charging equipment for deep hole blasting under special environmental conditions, characterized in that: The invention comprises a main casing (1), the top of which is connected to a secondary casing (2), a plurality of secondary casings (2), one end of each of the main casing (1) and the secondary casing (2) is bonded with a straight (6), the inner diameter of the straight (6) is the same as the outer diameter of the main casing (1) and the secondary casing (2), the main casing (1) and the secondary casing (2) are connected to the two secondary casings (2) via the straight (6), the upper end of the main casing (1) is symmetrically provided with a hanging rope hole (5), the The lower end of the main casing (1) is provided with two rectangular grooves (7) and two insertion holes (8), and two supports (9) are provided inside the main casing (1). The two supports (9) are respectively inserted into the opposite rectangular grooves (7) and the insertion holes (8), one end of the support (9) is inserted into the insertion hole (8), and the other end of the support (9) slides up and down in the rectangular groove (7), and the annular limit (902) at one end of the support (9) close to the rectangular groove (7) and the hanging rope hole (5) are both connected with a hanging rope (3).

2. The charging equipment for deep hole blasting under special environmental conditions according to claim 1 is characterized in that: The main casing (1), the secondary casing (2) and the pipe (6) are PVC pipes.

3. The charging equipment for deep hole blasting under special environmental conditions according to claim 2 is characterized in that: The rectangular chute (7) and the insertion hole (8) are symmetrically distributed relative to the cross section of the main casing (1), and the distance between adjacent rectangular chute (7) and the insertion hole (8) is 1 / 3D, where D is the inner diameter of the main casing (1).

4. The charging equipment for deep hole blasting under special environmental conditions according to claim 1 is characterized in that: A total of four lifting ropes (3) are provided, one end of each lifting rope (3) is connected to the traction assembly (4), and the other end of each lifting rope (3) is connected to the main casing (1) and the support (9) respectively. In the charged state, the lifting rope (3) connected to the support (9) is not subjected to stress, and the lifting rope (3) subjected to stress is arranged in the casing.

5. The charging equipment for deep hole blasting under special environmental conditions according to claim 4 is characterized in that: The traction assembly (4) comprises two brackets (401) and a support rod (403) arranged between the two brackets (401); one end of the support rod (403) passes through the bracket (401) and is connected to a turning handle (404); four rope wheels (402) are installed on the support rod (403); the support rod (403), the turning handle (404) and the rope wheels (402) are an integral whole.

6. The charging method for charging equipment for deep hole blasting construction under special environmental conditions according to claim 1, characterized in that: The steps include: Step 1: Start charging from the first row of holes close to the excavation free surface in the area to be blasted; Step 2: Select the hole to be charged. The outer diameter of the casing should be 10 mm smaller than the diameter of the drilled hole. If the casing can be inserted into the bottom of the hole, it is determined that the drilled hole is intact. If it cannot be inserted, it is still not inserted after repairing the hole and is treated as a waste hole. Step 3: Select the main casing (1) according to the hole depth, assemble the support (9), the suspension rope (3) and the main casing (1), one person holds the main casing (1) and one person loads the explosives; Step 4: Load part of the explosive roll, and then insert the main casing (1) into the borehole. Because there is water in the hole, the main casing (1) sinks slowly, and the blasting worker quickly loads the explosives; Step 5: When the main casing (1) is fully charged, the casing holder inserts the end of the auxiliary casing (2) not equipped with the direct (6) into the end of the main casing (1) equipped with the direct (6), continues to charge until the designed charge amount, and continues to insert the auxiliary casing (2) to deliver the explosives to the bottom of the hole; Step 6: When the charge is delivered to the bottom of the hole, the barrel holder first lifts the unloaded rope (3) connected to the support (9) by hand to make the support (9) slide along the rectangular slide (7) to the top of the groove, then the charge falls, and then the hand-cranked traction assembly (4) pulls the load-bearing rope (3) hanging on the main casing (1), the casing rises, and the secondary casing (2) is pulled out in turn until the main casing (1) is lifted out of the hole, and the next hole charging construction is prepared; Step 7: After the casing is pulled out, circulate until all the holes are filled.

Images