CN211626286U - Dry ice fracturing rock blast hole charging plugging plug - Google Patents
Dry ice fracturing rock blast hole charging plugging plug Download PDFInfo
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- CN211626286U CN211626286U CN202020053207.6U CN202020053207U CN211626286U CN 211626286 U CN211626286 U CN 211626286U CN 202020053207 U CN202020053207 U CN 202020053207U CN 211626286 U CN211626286 U CN 211626286U
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Abstract
The utility model discloses a dry ice sends and splits rock big gun hole powder charge shutoff, including the shutoff body, plastic sleeve and pullover, be provided with the wire guide that supplies the wire to wear down in the shutoff body, install the plastic tubing on the lower terminal surface of the shutoff body, the lead wire lead the plastic tubing in the rock big gun hole and with the inner wall fixed connection of plastic tubing, the bilateral symmetry of plastic tubing is provided with two electrode needles, the needle body rear portion of electrode needle is passed through the wire and is connected with the power that is located the rock big gun hole outside. The utility model discloses an installation two electrode needles on the lower terminal surface of the shutoff body are used for igniting the lead wire in the hole, avoid subaerial mallet to strike the destruction to the lead wire, avoid the lead wire to break off in the internal burning of shutoff simultaneously, lead to the dry ice to send and split the failure, are used for fixing a position the lead wire position through installing the plastic tubing on the lower terminal surface of the shutoff body, avoid the lead wire in the change of downthehole position, guarantee that two electrodes ignite to the accuracy of lead wire, guarantee that the rock big gun hole can normally arouse.
Description
Technical Field
The utility model belongs to the technical field of the dry ice send and splits rock big gun hole powder charge shutoff, concretely relates to dry ice sends and splits rock big gun hole powder charge shutoff and blocks up.
Background
The dry ice fracturing technology is increasingly applied to urban foundation pit excavation projects, and the non-explosive property and the good rock breaking force of the dry ice fracturing technology make the dry ice fracturing technology a reliable substitute when the traditional explosive construction is forbidden. However, the dry ice rock breaking is performed by means of pressure generated by instantaneous thermal expansion of the dry ice rock breaking body under a volume constraint environment, the temperature of the dry ice rock breaking body is lower than that of the dry ice rock breaking body during explosion of the traditional explosive, generated gas cannot instantly enable the hole wall rock body to enter a molten state and generate a crushing effect, and high-pressure gas cannot directly enter the crushed rock body to split the surrounding rock. Therefore, when the dry ice cracks, the pressure on the blocking section of the cracking hole is large, and the phenomenon of punching is easy to occur in the rock breaking process. Once the hole is punched, the gasified carbon dioxide quickly overflows, the pressure in the hole is sharply reduced, and the rock breaking effect is difficult to ensure. If the length of the plugging section is increased, the dosage of the dry ice and the catalyst is inevitably reduced, and the quality of rock breaking is also reduced. In addition, when the commonly used wooden hole plug is filled in the cracked hole, a mallet is used for knocking, and the lead is directly exposed on a knocking surface, so that the lead is damaged by carelessness, the catalyst cannot be excited, and the blind hole condition occurs. No matter what kind of problem occurs, the engineering progress and the construction safety are affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the prior art is directed against, a dry ice sends and splits rock big gun hole powder charge shutoff, novel in design is reasonable, moreover, the steam generator is simple in structure, be used for igniting the lead wire in the hole through installing two electrode needles on the lower terminal surface of the shutoff body, avoid subaerial mallet to strike the destruction to the lead wire, avoid the lead wire to break in the internal burning of shutoff simultaneously, lead to the dry ice to send and split the failure, be used for fixing a position the lead wire position through installing the plastic tubing on the lower terminal surface of the shutoff body, avoid the lead wire to change at downthehole position, guarantee that two electrodes ignite to the accuracy of lead wire, guarantee that the rock big gun hole can normally arouse, construction quality and operation safety have been improved, therefore.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a dry ice sends and splits rock big gun hole powder charge shutoff, is in including the shutoff body, setting the plastic sleeve of shutoff body lower part and setting are in the pullover on shutoff body upper portion, its characterized in that: the internal wire guide that supplies the wire to wear down that is provided with of shutoff, install the plastic tubing on the lower terminal surface of the shutoff body, the lead wire leads to in the plastic tubing and with the inner wall fixed connection of plastic tubing from rock big gun hole, the bilateral symmetry of plastic tubing is provided with two electrode needles, plastic tubing length direction's axis is passed to two electrode needle length direction's axis, be provided with first recess and the second recess that the intersection was laid on the up end of the shutoff body, the bottom of pullover be provided with first recess complex word arch, the tank bottom surface of second recess and the bottom surface of pullover have the clearance between, the needle body rear portion of electrode needle passes through the wire and is connected with the power that is located the rock big gun hole outside.
The dry ice fracturing rock blast hole charging plug is characterized in that: the electrode needle overcoat is equipped with the insulating layer.
The dry ice fracturing rock blast hole charging plug is characterized in that: the insulating layer is a double-layer thermal shrinkage insulating layer, epoxy resin electronic pouring sealant or insulating ceramic.
The dry ice fracturing rock blast hole charging plug is characterized in that: the distance between the front tips of the needle bodies of the two electrode needles is 0.8 cm.
The dry ice fracturing rock blast hole charging plug is characterized in that: the wire is a high-voltage flame-retardant insulated wire.
The dry ice fracturing rock blast hole charging plug is characterized in that: the size of the lead section of the lead positioned in the plastic pipe is larger than that of the lead section of the lead positioned outside the plastic pipe, and the lead section of the lead positioned in the plastic pipe is fixedly connected with the inner wall of the plastic pipe through epoxy resin glue.
The dry ice fracturing rock blast hole charging plug is characterized in that: the outer side wall of the plastic sleeve is provided with clamping teeth in an encircling mode, and the outer side faces of the clamping teeth are in contact with the hole wall of the rock blast hole.
The dry ice fracturing rock blast hole charging plug is characterized in that: the outer side wall of the plastic sleeve is provided with a plurality of rows of clamping teeth.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses an installation two electrode needles on the lower terminal surface of the shutoff body are used for igniting the lead wire in the hole, avoid subaerial mallet to strike the destruction to the lead wire, avoid the lead wire simultaneously because oxygen is rare and the burning is interrupted in the shutoff, lead to the dry ice to split the failure, through the wire hole that supplies the wire to wear down in the internal setting of shutoff, send electric arc for two electrode needle power supplies and drive electrode needle and ignite, convenient to popularize and use.
2. The utility model discloses an installation plastic tubing is used for fixing a position the lead wire position on the lower terminal surface of shutoff body, avoids the lead wire to change at downthehole position, guarantees that two electrodes ignite to the accuracy of lead wire, guarantees that the rock big gun hole can normally arouse, has improved construction quality and operation safety, and the practicality is strong, reliable stable, excellent in use effect.
3. The utility model relates to a novelty is reasonable, sets up the shutoff body in the rock big gun hole, through set up the plastic sleeve on the shutoff body, the frictional force between increase and the pore wall has solved among the prior art solid-state carbon dioxide and has taken place the problem that punches a hole easily when breaking rock, convenient to popularize and use.
To sum up, the utility model relates to a novel reasonable, be used for igniting the lead wire in the hole through two electrode needles of installation on the lower terminal surface of the shutoff body, avoid subaerial mallet to strike the destruction to the lead wire, avoid the lead wire to break in the internal burning of shutoff simultaneously, lead to the dry ice to send and split the failure, be used for fixing a position the lead wire position through installing the plastic tubing on the lower terminal surface of the shutoff body, avoid the lead wire in downthehole position change, guarantee that two electrodes ignite to the accuracy of lead wire, guarantee that the rock big gun hole can normally arouse, construction quality and operation safety have been improved, therefore, the clothes hanger is strong in practicability, and convenient.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the plugging body of the present invention.
Fig. 3 is a bottom view of the cuff of the present invention.
Description of reference numerals:
1-a blocking body; 1-1 — a first recess; 1-2-second groove;
2-plastic sleeve; 3, sleeving a head; 3-1-a line-shaped bulge;
4-wire guide hole; 5-conducting wire; 6, a power supply;
7, an electrode needle; 8-plastic pipe; 9-a lead;
10-rock blast hole.
Detailed Description
As shown in fig. 1 to 3, the utility model discloses a shutoff body 1, setting are in plastic sleeve 2 and the setting of shutoff body 1 lower part are in pullover 3 on shutoff body 1 upper portion, its characterized in that: the sealing body 1 is internally provided with a wire hole 4 for a wire 5 to penetrate through, a plastic tube 8 is arranged on the lower end face of the sealing body 1, a lead 9 leads the interior of the plastic tube 8 from a rock blast hole 10 and is fixedly connected with the inner wall of the plastic tube 8, two electrode needles 7 are symmetrically arranged on two sides of the plastic tube 8, the central axis of the two electrode needles 7 in the length direction penetrates through the central axis of the plastic tube 8 in the length direction, the upper end face of the sealing body 1 is provided with a first groove 1-1 and a second groove 1-2 which are arranged in a crossed manner, the bottom of the sleeve head 3 is provided with a linear bulge 3-1 matched with the first groove 1-1, a gap is formed between the bottom surface of the second groove 1-2 and the bottom surface of the sleeve head 3, and the rear part of the needle body of the electrode needle 7 is connected with a power supply 6 positioned.
It should be noted that, two electrode needles 7 are installed on the lower end face of the plugging body 1 and used for igniting the lead 9 in the hole, so that the lead 9 is prevented from being damaged by knocking by a wooden hammer on the ground, and meanwhile, the lead 9 is prevented from being burnt and interrupted in the plugging body 1 due to rare oxygen, so that the dry ice is prevented from being cracked and failed, and the wire hole 4 through which the lead 5 passes is arranged in the plugging body 1, so that power is supplied to the two electrode needles 7 and the electrode needles 7 are driven to emit electric arcs for ignition; the plastic pipe 8 is arranged on the lower end face of the plugging body 1 and used for positioning the position of the lead 9, so that the lead 9 is prevented from changing in position in a hole, the two electrode needles 7 are ensured to accurately ignite the lead 9, the rock blast hole 10 can be ensured to be normally excited, the construction quality and the operation safety are improved, the practicability is high, the reliability and the stability are high, and the using effect is good; set up the shutoff body 1 in rock big gun hole 10, through set up plastic sleeve 2 on the shutoff body 1, increase and the pore wall between frictional force, solved among the prior art solid-state carbon dioxide take place the problem of punching a hole easily when broken rock.
In practical use, the power supply 6 adopts a power supply and a voltage boosting module in patent number 201620238872.6 to realize the generation of electric arc between the two electrode needles 7 and ignite the lead wires 9.
In this embodiment, the electrode needle 7 is sleeved with an insulating layer.
In this embodiment, the insulating layer is a double-layer heat-shrinkable insulating layer, an epoxy resin electronic potting adhesive, or an insulating ceramic.
In the embodiment, the distance between the front tips of the needle bodies of the two electrode needles 7 is 0.8 cm.
It should be noted that the insulating layer is sleeved outside the electrode needles 7 to ensure that the front tips of the needle bodies of the two electrode needles 7 are not exposed in the air, ensure that the front tips of the needle bodies of the two electrode needles 7 are not corroded, prolong the service lives of the two electrode needles 7, and ensure that the front tips of the needle bodies of the two electrode needles 7 are 0.8cm apart to meet the requirement of rapid ignition of the lead wires 9, so that the response speed is high, and the reliability and stability are realized.
In this embodiment, the wire 5 is a high-voltage flame-retardant insulated wire.
In this embodiment, the size of the lead segment of the lead 9 located in the plastic tube 8 is larger than that of the lead segment located outside the plastic tube 8, and the lead segment of the lead 9 located in the plastic tube 8 is fixedly connected with the inner wall of the plastic tube 8 through epoxy resin glue.
It should be noted that the plastic tube 8 is fixed on the lower end face of the plugging body 1, and the lead 9 is fixed on the inner wall of the plastic tube 8 through epoxy resin glue, so as to ensure the integral connection of the plastic tube 8, the plugging body 1 and the lead 9, the plastic tube 8 has poor heat resistance, the two electrode pins 7 generate electric arcs, the plastic tube 8 is melted, and then the lead 9 is ignited, so that the ignition speed is high.
In this embodiment, the surrounding latch that is provided with on the lateral wall of plastic sleeve 2, the lateral surface of latch contacts with the pore wall of rock big gun hole 10.
In this embodiment, the outer side wall of the plastic sleeve 2 is provided with a plurality of rows of the latch.
It should be noted that the sleeve head 3 is provided with a linear protrusion 3-1, and the sleeve head 3 is engaged with the plugging body 1 through the mutual matching of the linear protrusion 3-1 and the cross groove. Because the sleeve head 3 is connected with the blocking body 1 in a clamping way, after the linear protrusion 3-1 is matched with the cross-shaped groove, the linear protrusion 3-1 is only clamped with the first groove, a gap exists between the second groove and the sleeve head 3, the lead 6 can be led out from the gap, if the sleeve head 3 is hammered, the lead 6 cannot be damaged, the blind hole problem cannot occur after the catalyst is excited, and the quality of the rock breaking is ensured.
The plugging body 1 is a truncated cone-shaped plugging body 1, and the sectional area of the upper end part of the plugging body 1 is larger than that of the lower end part of the plugging body 1, so that the plugging body 1 can be conveniently installed in the rock blast hole 10.
The plastic sleeve 2 is upper and lower both ends open-ended plastic sleeve 2, and 2 upper end open-ended diameters of plastic sleeve are greater than the diameter of the 1 lower extreme cross-section of the shutoff body, and 2 upper end open-ended diameters of plastic sleeve are less than the diameter of the 1 upper end cross-section of the shutoff body, and 2 lower extreme open-ended diameters of plastic sleeve are less than the diameter of the 1 lower extreme cross-section of the shutoff body. When the plugging device is used, the lower end of the plugging body 1 is sleeved into the plastic sleeve 2, and the plugging body 1 is ensured not to move relative to the plastic sleeve 2.
The surrounding latch that is provided with on the lateral wall of plastic sleeve 2, and set up on the lateral wall of plastic sleeve 2 that the latch on the lateral wall of plastic sleeve 2 arranged with the form of multirow, the lateral surface of every latch all contacts with 10 pore walls of rock big gun hole. Through the setting of latch, increase the frictional force between plastic sleeve 2 and the 10 pore walls of rock big gun hole, avoid plastic sleeve 2 gliding in rock big gun hole 10, also because the lateral surface of every latch all contacts with 10 pore walls of rock big gun hole, can guarantee the jam effect to rock big gun hole 10.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (8)
1. The utility model provides a dry ice is sent and is split rock big gun hole powder charge shutoff stopper, is in including shutoff body (1), setting plastic sleeve (2) and the setting of shutoff body (1) lower part are in pullover (3) on shutoff body (1) upper portion, its characterized in that: a wire guide hole (4) for a wire (5) to penetrate is arranged in the plugging body (1), a plastic pipe (8) is arranged on the lower end face of the plugging body (1), a lead (9) is led into the plastic pipe (8) from a rock blast hole (10) and is fixedly connected with the inner wall of the plastic pipe (8), two electrode needles (7) are symmetrically arranged on two sides of the plastic pipe (8), the central axes of the two electrode needles (7) in the length direction penetrate through the central axis of the plastic pipe (8) in the length direction, a first groove (1-1) and a second groove (1-2) which are distributed in a crossed manner are arranged on the upper end face of the plugging body (1), a linear bulge (3-1) matched with the first groove (1-1) is arranged at the bottom of the sleeve head (3), a gap is formed between the groove bottom face of the second groove (1-2) and the bottom face of the sleeve head (3), the rear part of the needle body of the electrode needle (7) is connected with a power supply (6) positioned outside the rock blast hole (10) through a lead (5).
2. The dry ice fracturing rock blasthole charge plug as claimed in claim 1, wherein: an insulating layer is sleeved outside the electrode needle (7).
3. A dry ice fracturing rock blasthole charge pack plug as in claim 2, wherein: the insulating layer is a double-layer thermal shrinkage insulating layer, epoxy resin electronic pouring sealant or insulating ceramic.
4. The dry ice fracturing rock blasthole charge plug as claimed in claim 1, wherein: the distance between the front tips of the needle bodies of the two electrode needles (7) is 0.8 cm.
5. The dry ice fracturing rock blasthole charge plug as claimed in claim 1, wherein: the lead (5) is a high-voltage flame-retardant insulated lead.
6. The dry ice fracturing rock blasthole charge plug as claimed in claim 1, wherein: the size that lead wire (9) is located the lead wire section of plastic tubing (8) is greater than its lead wire section's that is located outside plastic tubing (8) size, lead wire (9) are located the lead wire section of plastic tubing (8) and pass through the inner wall fixed connection of epoxy glue with plastic tubing (8).
7. The dry ice fracturing rock blasthole charge plug as claimed in claim 1, wherein: the outer side wall of the plastic sleeve (2) is provided with clamping teeth in an encircling mode, and the outer side faces of the clamping teeth are in contact with the hole wall of the cracking hole (11).
8. A dry ice fracturing rock blasthole charge pack plug as in claim 7, wherein: the outer side wall of the plastic sleeve (2) is provided with a plurality of rows of clamping teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020053207.6U CN211626286U (en) | 2020-01-11 | 2020-01-11 | Dry ice fracturing rock blast hole charging plugging plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020053207.6U CN211626286U (en) | 2020-01-11 | 2020-01-11 | Dry ice fracturing rock blast hole charging plugging plug |
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| CN211626286U true CN211626286U (en) | 2020-10-02 |
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| CN202020053207.6U Active CN211626286U (en) | 2020-01-11 | 2020-01-11 | Dry ice fracturing rock blast hole charging plugging plug |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310374A (en) * | 2021-04-29 | 2021-08-27 | 中国化学工程重型机械化有限公司 | Liquid carbon dioxide fracturing pipe differential delay control blasting method |
| CN114674188A (en) * | 2022-05-12 | 2022-06-28 | 辽宁科技学院 | Staged charging method for frozen blast hole |
| RU214666U1 (en) * | 2022-05-04 | 2022-11-09 | Федеральное государственное бюджетное учреждение науки Хабаровский Федеральный исследовательский центр Дальневосточного отделения Российской академии наук (ХФИЦ ДВО РАН) | Downhole charge differentiation device |
-
2020
- 2020-01-11 CN CN202020053207.6U patent/CN211626286U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310374A (en) * | 2021-04-29 | 2021-08-27 | 中国化学工程重型机械化有限公司 | Liquid carbon dioxide fracturing pipe differential delay control blasting method |
| CN113310374B (en) * | 2021-04-29 | 2022-02-08 | 中国化学工程重型机械化有限公司 | Liquid carbon dioxide fracturing pipe differential delay control blasting method |
| RU214666U1 (en) * | 2022-05-04 | 2022-11-09 | Федеральное государственное бюджетное учреждение науки Хабаровский Федеральный исследовательский центр Дальневосточного отделения Российской академии наук (ХФИЦ ДВО РАН) | Downhole charge differentiation device |
| CN114674188A (en) * | 2022-05-12 | 2022-06-28 | 辽宁科技学院 | Staged charging method for frozen blast hole |
| CN114674188B (en) * | 2022-05-12 | 2024-03-26 | 辽宁科技学院 | Graded charging method for frozen ice blast holes |
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