Detonator structure capable of improving anti-terrorism capability of digital detonator and production technology

Abstract

The invention relates to the technical field of digital detonators, in particular to a detonator structure capable of improving the anti-terrorism capacity of a digital detonator and a production technology, the detonator structure comprises a detonator shell, a steel pipe inserted in the detonator shell and a digital delay element, and the digital delay element is located above the steel pipe; the mouth plastic plug is integrally fixed to the top of the digital delay element and located at the top of the interior of the detonator shell, and after the mouth plastic plug is inserted into the detonator shell, the outer wall of the detonator shell is clamped through a circular clamp with teeth, so that the outer wall of the detonator shell and the mouth plastic plug synchronously deform to form a closed opening; the electric ignition powder head is arranged at the bottom of the digital delay element; the explosive is filled between the interior of the steel pipe and the bottom of the detonator shell; the leg wire is arranged at the top of the mouth plastic plug; the flame-retardant material is filled in the steel pipe; according to the device, through the arrangement of the steel pipe and the flame-retardant material, the anti-reassembly capability of the existing digital detonator is improved, the production process is safe, and the anti-collision capability of the detonator is relatively strong.

Description

Technical Field

[0001] The present invention relates to the field of digital detonators, and in particular to a detonator structure and production technology capable of improving the anti-terrorism capability of digital detonators. Background Art

[0002] A few years ago, my country stopped the production of electric detonators and detonating cord detonators and switched to the production of digital delayed detonators. In addition to improving the quality of blasting, it can also improve the anti-terrorism ability of detonators. Because even if the detonator is stolen, it is difficult to detonate the detonator. This is because it is necessary to enter the power-on password and scan the face of the special personnel. After verification, the special detonator for digital detonators can be opened. In addition, before detonation, the electronic code of each detonator used in this blasting and the detonation password set for this blasting must be entered before the blasting can be carried out.

[0003] However, if you use a hacksaw or a file to cut off the detonator on the reinforcing cap of the digital detonator, or peel off the detonator mouth, pull out the digital delay element and the electric ignition charge head, use tape to fix a fuse on the reinforcing cap, or use soft paper to wrap firecracker powder or match head powder to make a fire twist, you can make a fire detonator, because under the reinforcing cap is a priming or ignition charge with high flame sensitivity. If you use scissors to cut the electric ignition charge head from the lower part of the extracted digital delay body, weld its two legs to the detonator leg wire, and then insert this charge head into the detonator shell, so that the charge head is close to the reinforcing cap, and use tape to fix the leg wire to the detonator shell, you can make a instantaneous electric detonator. Since detonators can be detonated through modification, the current anti-terrorism capabilities of my country's digital detonators are limited. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a detonator structure and production technology that can improve the anti-terrorism capability of digital detonators.

[0005] 1. The present invention provides a detonator structure capable of improving the anti-terrorism capability of a digital detonator, comprising a detonator shell and:

[0006] A steel pipe, inserted into the interior of the detonator shell;

[0007] A digital delay body is inserted into the detonator shell and is located above the steel tube;

[0008] The mouth plastic plug is integrally fixed to the top of the digital delay body and is located at the inner top of the detonator shell. After the mouth plastic plug is inserted into the detonator shell, the outer wall of the detonator shell is clamped by a circular clamp with teeth so that it deforms synchronously with the mouth plastic plug to form a closed mouth.

[0009] An electric ignition charge head is installed at the bottom of the digital delay body;

[0010] Explosives are loaded between the inside of the steel tube and the bottom of the detonator shell, and the electric ignition head is used to ignite the explosives;

[0011] A flame retardant material is filled inside the steel pipe, located above the explosive and below the digital delay body, and is used to isolate the explosive below the steel pipe;

[0012] A foot line is installed on the top of the mouth plastic plug and connected to the digital delay body.

[0013] Preferably, it also includes:

[0014] A waist plastic plug is integrally fixed to the bottom of the digital delay body, and the waist plastic plug is against the top of the steel tube. After the waist plastic plug is inserted into the detonator shell, the outer wall of the detonator shell is clamped by a toothed circular clamp to cause it to deform synchronously with the waist plastic plug to form a waist.

[0015] Preferably, the filling mass of the flame retardant material is 0.10-0.20 g, the particle size is 0.1-0.15 mm, and the filling height is 7 mm.

[0016] Preferably, the flame retardant material is similar in color and particle size to the explosive.

[0017] Preferably, the explosive comprises:

[0018] A first layer of explosives and a second layer of explosives, wherein the first layer of explosives and the second layer of explosives are sequentially filled in the inner bottom of the steel pipe, and a cavity of 2 to 3 mm deep is left between the second layer of explosives located at the bottom and the bottom of the steel pipe after slight compaction;

[0019] A loose third layer of explosive and a compacted fourth layer of explosive are sequentially loaded at the bottom of the detonator shell, and the top portion of the third layer of explosive located above is filled into the cavity at the bottom of the steel tube when being inserted and squeezed by the steel tube.

[0020] Preferably, the explosive further comprises:

[0021] The first layer of explosives, the second layer of explosives, and the third layer of explosives are all Taian;

[0022] The fourth layer of explosives is one of RDX or Taian.

[0023] Preferably, the flame retardant material comprises:

[0024] Quartz sand is contained in the steel pipe, the quartz sand is located between the explosive and the bottom of the waist plastic plug, and the electric ignition charge is located below the quartz sand.

[0025] Preferably, the explosive further comprises:

[0026] The filling mass of the first layer of explosives and the second layer of explosives are both 0.15 to 0.30 g;

[0027] The filling mass of the third layer of explosive is 0.20-0.40 g, and the filling density is 1.1-1.2 g / cm 3 ;

[0028] The filling mass of the fourth layer of explosive is 0.20-0.40 g, and the filling density is about 1.3 g / cm 3 ;

[0029] The packing density of the first layer of explosives, the second layer of explosives, the third layer of explosives and the fourth layer of explosives increases gradually.

[0030] Preferably, the explosive further comprises:

[0031] The total loading mass of the first layer of explosives, the second layer of explosives, the third layer of explosives and the fourth layer of explosives is 0.86-1.0 g.

[0032] 2. The present invention provides a production technology of a detonator structure capable of improving the anti-terrorism capability of a digital detonator, and the production technology comprises the following steps:

[0033] Step 1: insert the electric ignition charge into a steel pipe with a length of about 30-45mm, an outer diameter of 6mm, and an inner diameter of 4-4.5mm, and assemble it with the digital delay body. Wrap the joint of the digital delay body and the steel pipe with tape to make the two become one. Then turn it upside down so that the bottom opening of the steel pipe faces upwards, and then load the flame retardant material through this opening and vibrate it;

[0034] Step 2: Load the first layer and the second layer of explosives of the same mass into the steel pipe twice. After each loading, use a flat punch to compact the explosives until the steel pipe is filled with explosives. After the last pressing, because the explosives move down with the punch, there will be a hole at the bottom opening of the steel pipe. At this time, the charging of explosives into the steel pipe is completed.

[0035] Step 3: Load the fourth layer of explosives into the detonator shell, compact it with steel punch, and use it as the bottom charge of the detonator shell, and then load the third layer of explosives of the same mass;

[0036] Step 4: Turn the steel pipe loaded with explosives upside down and push the detonator shell into the steel pipe with the bottom opening facing downward, so that the loose third layer of explosives in the detonator shell can be squeezed into the cavity and the closing opening at the bottom of the steel pipe, and the production is completed.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The present invention improves the anti-reloading capability of the existing digital detonator by setting the steel tube and the flame retardant material, that is, improves its anti-terrorism capability. Since the electric ignition charge head is installed in the thick-walled steel tube, it is not easy to explode when the detonator is squeezed and impacted, and is safer; secondly, the detonator has no explosive and gunpowder, and is a new type of detonator without explosive, with a safe production process and strong impact resistance of the detonator itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present invention.

[0040] Figure 2 This is a schematic diagram of the overall structure of Example 2 of the present invention.

[0041] Figure 3 It is a schematic diagram of the connection structure between the electric ignition charge head and the digital delay body of the present invention.

[0042] Figure 4 It is a schematic diagram of the production technology process of the present invention;

[0043] Figure 5 It is a structural schematic diagram of a detonator in the prior art.

[0044] In the figure: 1. Leg line; 2. Plastic plug at the mouth; 3. Detonator shell; 4. Digital delay body; 5. Plastic plug at the waist; 6. Waist; 7. Steel pipe; 8. Quartz sand; 9. Electric ignition head; 10. First layer of explosives; 11. Second layer of explosives; 12. Third layer of explosives; 13. Fourth layer of explosives; 14. Closing; 15. Reinforcement cap; 16. Detonator; 17. High explosive. DETAILED DESCRIPTION

[0045] The following description is used to illustrate the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations, which are also within the scope of protection of the present invention.

[0046] Example 1

[0047] like Figure 1 A detonator structure capable of improving the anti-terrorism capability of a digital detonator is shown, comprising a detonator shell 3, and further comprising:

[0048] The steel tube 7 is inserted into the detonator shell 3;

[0049] The digital delay body 4 is inserted into the detonator shell 3 and is located above the steel tube 7;

[0050] The mouth plastic plug 2 is integrally fixed to the top of the digital delay body 4 and is located at the inner top of the detonator shell 3. After the mouth plastic plug 2 is inserted into the detonator shell 3, the outer wall of the detonator shell 3 is clamped by a circular clamp with teeth so that it is deformed synchronously with the mouth plastic plug 2 to form a closed mouth 14;

[0051] The electric ignition charge head 9 is installed at the bottom of the digital delay body 4;

[0052] Explosives are loaded between the inside of the steel tube 7 and the bottom of the detonator shell 3, and the electric ignition charge 9 is used to ignite the explosives;

[0053] The flame retardant material is filled inside the steel tube 7, located above the explosive and below the digital delay body 4, and is used to isolate the explosive below the steel tube 7;

[0054] The foot line 1 is installed on the top of the mouth plastic plug 2 and connected to the digital delay body 4.

[0055] The specific production technology of Example 1 is as follows:

[0056] A production technology for a detonator structure capable of improving the anti-terrorism capability of a digital detonator is used to produce the detonator structure capable of improving the anti-terrorism capability of a digital detonator in Example 1. The production technology comprises the following steps:

[0057] Step 1, insert the electric ignition charge head 9 into a steel pipe 7 with a length of about 30-45 mm (specifically, it can be set to 30 mm), an outer diameter of 6 mm, and an inner diameter of 4-4.5 mm (specifically, it can be set to 4 mm), and assemble it with the digital delay body 4, and wrap the joint of the digital delay body 4 and the steel pipe 7 with tape (wherein, the top of the digital delay body 4 is fixed with a mouth plastic plug 2) to make the two become one. After the steel pipe 7 and the electric ignition charge head 9 are connected, turn the steel pipe 7 upside down so that the bottom opening of the steel pipe 7 faces upward, and first load the flame retardant material (specifically, white quartz sand) with a fineness and color similar to the charge at the bottom of the steel pipe through this opening, with a filling mass of 0.10-0.20 g, and then vibrate to make the white quartz sand dense and void-free in the steel pipe, and the filling height of the flame retardant material is about 7 mm;

[0058] Step 2: Load the first layer 10 and the second layer 11 of the same mass into the steel pipe twice (for example, 0.15-0.30g of Taian explosive is loaded twice, that is, the first layer 10 and the second layer 11 are loaded twice). After each loading, the explosive is pressed with a flat punch until the steel pipe 7 is filled with explosives. After the last pressing, because the explosive moves downward with the punch, a hole with a depth of about 2-3mm will be left at the bottom opening of the steel pipe 7. At this time, the charging of the steel pipe 7 is completed;

[0059] Step 3: Load the fourth layer of explosive 13 into the detonator shell 3 (for example, 0.20-0.40 g of Taian or RDX into the detonator shell 3), and press it with steel to a density of 1.1-1.3 g / cm 3 , as the bottom charge of the detonator shell 3, and then load the third layer of explosive 12 of the same mass (for example, 0.20-0.40g of RDX or Taian);

[0060] Step 4: reverse the steel tube 7 loaded with explosives, push the bottom opening of the steel tube 7 downward into the detonator shell 3, and squeeze the loose third layer of explosives 12 in the detonator shell 3 into the hole and the closing opening 14 at the bottom of the steel tube 7, so that the digital detonator without initiating explosives with strong anti-terrorism function of the present invention is manufactured, and the total mass of explosives filled in each detonator is about 0.86-1.0g.

[0061] In the prior art, Figure 5 The digital detonator shown is composed of a foot line 1, a plastic plug 2 at the mouth, a detonator shell 3, a digital delay body 4, an electric ignition charge head 9, a closing mouth 14, a reinforcing cap 15, an explosive 16 and a high explosive 17. Compared with the electric detonators and detonating cord detonators produced in the past, the digital delay detonator in the prior art can not only improve the blasting quality, but also improve the anti-terrorism capability of the detonator. However, if a hacksaw or a file is used to cut off the detonator on the reinforcing cap of the digital detonator, or to peel off the detonator mouth, and to pull out the digital delay element and the electric ignition charge head, and a fuse is fixed on the reinforcing cap with tape, or a fire twist made of firecracker powder or match head powder wrapped with soft paper is used, a ignition detonator can be made, because under the reinforcing cap is an explosive or ignition charge with a high flame sensitivity. If you use scissors to cut the electric ignition charge from the lower part of the drawn digital delay body, weld its two legs to the detonator leg wire, insert the charge into the detonator shell, make it close to the reinforcing cap, and fix the leg wire to the detonator shell with adhesive tape, you can make an instantaneous electric detonator. Since detonators can be detonated through modification, the anti-terrorism capability of my country's current digital detonators is limited.

[0062] The solution of this embodiment can solve the above problems. The method of using the detonator in this embodiment is the same as the digital detonator currently produced in my country. In addition to having all the performances of the original digital detonator, the anti-terrorism function is enhanced, as follows:

[0063] 1. Once someone steals this digital detonator, if he uses pliers to break the closing 14 ( Figure 1 ), extract the digital delay body 4 and the electric ignition charge head 9, and insert the fuse or fire twist into the upper opening of the steel tube 7. Because the upper opening of the steel tube 7 is quartz sand 8, not to mention that the fuse cannot ignite the quartz sand 8, even if the explosives below the quartz sand 8 are ignited, the upper opening of the steel tube 7 cannot be sealed, and the explosive combustion gas will be ejected from here, reducing the combustion pressure, and the explosives inside the steel tube 7 cannot burn and turn to detonation, and the detonator cannot detonate the explosives to be detonated;

[0064] 2. If he moves the electric ignition charge head 9 from the lower end of the digital delay body 4 ( Figure 1 ) and then weld the two wires on the electric ignition charge head 9 to the detonator leg wire to make an electric ignition charge head 9 with a connecting wire, and insert it into the steel pipe 7. However, the detonator cannot be detonated due to the following reasons:

[0065] (1) The quartz sand 8 at the upper end of the steel pipe 7 will be pushed into the explosive by the electric ignition charge head 9, making it difficult to ignite the explosive next to the electric ignition charge head 9;

[0066] (2) When the electric ignition charge head 9 is inserted into the steel tube 7, the electric ignition charge head 9 may be broken due to the obstruction of the explosive particles, and the bridge wire may also be disconnected, so that the electric ignition charge head 9 cannot be ignited when the detonator is energized for detonation;

[0067] (3) Even if the mixture of quartz sand 8 and explosives poured out from the steel tube 7 is not loaded, and only the explosives obtained by dissecting several detonators are loaded, the same process as the present production technology is adopted, and the electric ignition charge head 9 is first inserted into the steel tube 7, and the steel tube 7 is reversed so that the lower end of the steel tube 7 faces upward, and the explosives are loaded in batches, and then the steel tube 7 is inserted into the detonator shell 3, because there is no plastic plug to seal the upper end of the steel tube 7, the electric ignition charge head 9 and the combustion gas of the explosives will leak from this place, and the detonator will not be able to burn and detonate.

[0068] Example 2

[0069] like Figure 2 As shown, as an optional embodiment for further improvement, embodiment 2 further includes the following on the basis of embodiment 1:

[0070] The waist plastic plug 5 is integrally fixed to the bottom of the digital delay body 4, and the waist plastic plug 5 is against the top of the steel tube 7. After the waist plastic plug 5 is inserted into the detonator shell 3, the outer wall of the detonator shell 3 is clamped by a toothed circular clamp to make it deform synchronously with the waist plastic plug 5 to form a waist 6.

[0071] The specific production technology of Example 2 is as follows:

[0072] In such Figure 4 Based on the production technology of a detonator structure capable of improving the anti-terrorism capability of a digital detonator, steps one and four of the production technology are adjusted, specifically:

[0073] Step 1: Place the electric ignition charge 9 ( Figure 3) Insert a steel tube 7 with a length of about 30 to 45 mm (specifically set to 30 mm), an outer diameter of 6 mm, and an inner diameter of 4 to 4.5 mm (specifically set to 4 mm), and assemble it with a special digital delay body 4 with a mouth plastic plug 2 fixed on the top and a waist plastic plug 5 fixed on the bottom, wrap the waist plastic plug 5 and the steel tube 7 with tape to make the two become one, then turn it upside down so that the bottom opening of the steel tube 7 faces upward, and insert the flame retardant material through this opening and vibrate;

[0074] Step 4: reverse the steel tube 7 loaded with explosives, push the bottom opening of the steel tube 7 downward into the detonator shell 3, and squeeze the loose third layer of explosives 12 in the detonator shell 3 into the hole at the bottom of the steel tube 7 and the waist 6 and the closing 14, so that the digital detonator without initiating explosives with strong anti-terrorism function of the present invention is manufactured, and the total mass of explosives filled in each detonator is about 0.86-1.0g.

[0075] The remaining steps are the same as those in Example 1, that is, a digital detonator without initiating explosives having a stronger anti-terrorism function and a waist plastic plug 5 at the bottom of the digital delay body 4 in this embodiment is produced.

[0076] In this embodiment, by adding the setting of the waist plastic plug 5, the anti-terrorism capability of the designed detonator is further enhanced on the basis of the anti-terrorism function of Example 1. Because in order to remove the electric ignition head 9, the waist of the detonator must be destroyed, so that the top of the steel tube 7 cannot be reliably sealed, and the explosive combustion gas will spray out from the opening at the top of the steel tube 7, thereby reducing the combustion pressure. When the fuse or the electric ignition head 9 ignites the explosive, the combustion gas will leak, resulting in the explosive in the steel tube 7. The opening at the top of the steel tube 7 cannot be reliably sealed, and the combustion will be converted into detonation.

[0077] Example 3

[0078] As an optional embodiment, on the basis of Embodiment 1 and Embodiment 2, the flame retardant material in Embodiment 1 and Embodiment 2 is specifically selected, and the color and particle size of the flame retardant material and the explosive are similar. By setting the color and fineness of the flame retardant material and the explosive to be similar, the flame retardant material and the explosive cannot be completely distinguished. If the detonator shell 3 with the electric ignition head 9 pulled out is turned downward, the flame retardant material and the explosive are poured out, and the two will be mixed together. Then the poured mixture is reloaded into the steel pipe 7, and the mixture cannot burn and turn to detonation;

[0079] The flame retardant material can be quartz sand 8 , which is placed inside the steel pipe 7 , between the explosive and the bottom of the waist plastic plug 5 , and the electric ignition charge 9 is located below the quartz sand 8 .

[0080] Example 4

[0081] As an optional embodiment, based on Embodiment 1 and Embodiment 2, the explosives in Embodiment 1 and Embodiment 2 specifically include:

[0082] The first layer of explosives 10 and the second layer of explosives 11 are sequentially loaded at the bottom of the steel pipe 7, and a 2-3 mm deep cavity is left between the second layer of explosives 11 located at the bottom and the bottom of the steel pipe 7 after slight compaction;

[0083] The loose third layer of explosives 12 and the compacted fourth layer of explosives 13 are sequentially loaded at the bottom of the detonator shell 3. The top portion of the third layer of explosives 12 located at the top is filled into the cavity, waist 6 and mouth 14 at the bottom of the steel tube 7 when the steel tube 7 is inserted and squeezed.

[0084] The first layer of explosives 10, the second layer of explosives 11, and the third layer of explosives 12 are all Taian;

[0085] The fourth layer of explosive 13 is one of RDX or Taian;

[0086] The filling mass of the first layer of explosives 10 and the second layer of explosives 11 are both 0.15 to 0.30 g;

[0087] The filling mass of the third layer of explosive 12 is 0.20-0.40 g, and the filling density is 1.1-1.2 g / cm 3 ;

[0088] The fourth layer of explosive 13 has a filling mass of 0.20 to 0.40 g and a filling density of about 1.3 g / cm 3 ;

[0089] The packing density of the first layer of explosives 10, the second layer of explosives 11, the third layer of explosives 12, and the fourth layer of explosives 13 gradually increases;

[0090] The total loading mass of the first layer of explosives 10, the second layer of explosives 11, the third layer of explosives 12 and the fourth layer of explosives 13 is 0.86-1.0 g.

[0091] In summary, the detonator in the present invention has an explosion perforation diameter of about 11 mm for a 5 mm thick lead plate through experimental testing, and can detonate the third-level coal mine permitted emulsion explosive. The detonator in the present invention improves the anti-reinstallation capability of the existing digital detonator through the assembly arrangement of the steel tube 7 and the flame retardant material, that is, improves its anti-terrorism capability. Since the electric ignition head 9 is installed in the thick-walled steel tube 7, it is not easy to explode when the detonator is squeezed and impacted, and is safer; secondly, this detonator does not have explosives and gunpowder, and is a new type of detonator without explosives, and the production process is safe.

[0092] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A detonator structure capable of improving the anti-terrorism capability of a digital detonator, comprising a detonator shell (3), characterized in that: Also includes: A steel tube (7) inserted into the interior of the detonator shell (3); A digital delay body (4) is inserted into the interior of the detonator shell (3) and is located above the steel tube (7); The mouth plastic plug (2) is integrally fixed to the top of the digital delay body (4) and is located at the inner top of the detonator shell (3). After the mouth plastic plug (2) is inserted into the detonator shell (3), the outer wall of the detonator shell (3) is clamped by a circular clamp with teeth so that it and the mouth plastic plug (2) are deformed synchronously to form a closed mouth (14); An electric ignition charge head (9) is installed at the bottom of the digital delay body (4); Explosives are loaded between the inside of the steel tube (7) and the bottom of the detonator shell (3), and the electric ignition charge (9) is used to ignite the explosives; A flame retardant material is filled inside the steel pipe (7), located above the explosive and below the digital delay body (4), and is used to isolate the explosive below the steel pipe (7); The foot line (1) is installed on the top of the mouth plastic plug (2) and connected to the digital delay body (4).

2. A detonator structure capable of improving the anti-terrorism capability of a digital detonator according to claim 1, characterized in that: Also includes: A waist plastic plug (5) is integrally fixed to the bottom of the digital delay body (4), and the waist plastic plug (5) is against the top of the steel tube (7). After the waist plastic plug (5) is inserted into the detonator shell (3), the outer wall of the detonator shell (3) is clamped by a circular clamp with teeth so that it and the waist plastic plug (5) are deformed synchronously to form a waist (6).

3. A detonator structure capable of improving the anti-terrorism capability of a digital detonator according to claim 2, characterized in that: The filling mass of the flame retardant material is 0.10-0.20 g, the particle size is 0.1-0.15 mm, and the filling height is 7 mm.

4. A detonator structure capable of improving the anti-terrorism capability of a digital detonator according to claim 3, characterized in that: The flame retardant material is similar in color and particle size to the explosive.

5. A detonator structure capable of improving the anti-terrorism capability of a digital detonator according to claim 3, characterized in that: The explosive comprises: A first layer of explosives (10) and a second layer of explosives (11), wherein the first layer of explosives (10) and the second layer of explosives (11) are sequentially loaded on the inner bottom of the steel pipe (7), and after slight compaction, a cavity of 2 to 3 mm deep is left between the second layer of explosives (11) located at the bottom and the bottom of the steel pipe (7); A loose third layer of explosive (12) and a compacted fourth layer of explosive (13), the third layer of explosive (12) and the fourth layer of explosive (13) are sequentially loaded at the bottom of the detonator shell (3), and the top portion of the third layer of explosive (12) located above is filled into the cavity at the bottom of the steel tube (7) when being inserted and squeezed by the steel tube (7).

6. A detonator structure capable of improving the anti-terrorism capability of a digital detonator according to claim 5, characterized in that: The explosive also includes: The first layer of explosives (10), the second layer of explosives (11) and the third layer of explosives (12) are all Taian; The fourth layer of explosive (13) is one of RDX or Taian.

7. A detonator structure capable of improving the anti-terrorism capability of a digital detonator according to claim 6, characterized in that: The flame retardant material comprises: Quartz sand (8) is placed inside the steel pipe (7). The quartz sand (8) is located between the explosive and the bottom of the waist plastic plug (5). The electric ignition charge (9) is located below the quartz sand (8).

8. A detonator structure capable of improving the anti-terrorism capability of a digital detonator according to claim 4, characterized in that: The explosive also includes: The filling mass of the first layer of explosive (10) and the second layer of explosive (11) are both 0.15-0.30 g; The third layer of explosive (12) has a filling mass of 0.20-0.40 g and a filling density of 1.1-1.2 g / cm 3 ; The fourth layer of explosive (13) has a filling mass of 0.20-0.40 g and a filling density of about 1.3 g / cm 3 ; The packing densities of the first layer of explosives (10), the second layer of explosives (11), the third layer of explosives (12), and the fourth layer of explosives (13) gradually increase.

9. A detonator structure capable of improving the anti-terrorism capability of a digital detonator according to claim 8, characterized in that: The explosive also includes: The total loading mass of the first layer of explosive (10), the second layer of explosive (11), the third layer of explosive (12) and the fourth layer of explosive (13) is 0.86-1.0 g.

10. A production technology of a detonator structure capable of improving the anti-terrorism capability of a digital detonator, applicable to a detonator structure capable of improving the anti-terrorism capability of a digital detonator as claimed in any one of claims 2 to 9, characterized in that: The production technology includes the following steps: Step 1: insert the electric ignition charge (9) into a steel pipe (7) with a length of about 30 to 45 mm, an outer diameter of 6 mm, and an inner diameter of 4 to 4.5 mm, and assemble it with the digital delay body (4). Wrap the joint of the digital delay body (4) and the steel pipe (7) with adhesive tape to make the two become one. Then turn it upside down so that the bottom opening of the steel pipe (7) faces upward, and then load the flame retardant material through this opening and vibrate it; Step 2: Load the first layer of explosive (10) and the second layer of explosive (11) of the same mass into the steel pipe (7) twice. After each loading, use a flat punch to compact the explosive until the steel pipe (7) is filled with explosive. After the last pressing, because the explosive moves downward with the punch, a hole will remain at the bottom opening of the steel pipe (7). At this time, the loading of explosives into the steel pipe (7) is completed. Step 3: Load the fourth layer of explosive (13) into the detonator shell (3), compact it with steel punch, and use it as the bottom charge of the detonator shell (3), and then load the third layer of explosive (12) of the same mass; Step 4: Reverse the steel tube (7) loaded with explosives, push the bottom opening of the steel tube (7) downward into the detonator shell (3), and squeeze the loose third layer of explosives (12) in the detonator shell (3) into the cavity and the closing opening (14) at the bottom of the steel tube (7), thus completing the production.

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