CN111981924A - Safe detonation method and device for NHN (polyethylene glycol N) initiating explosive - Google Patents

Safe detonation method and device for NHN (polyethylene glycol N) initiating explosive Download PDF

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Publication number
CN111981924A
CN111981924A CN202010910907.7A CN202010910907A CN111981924A CN 111981924 A CN111981924 A CN 111981924A CN 202010910907 A CN202010910907 A CN 202010910907A CN 111981924 A CN111981924 A CN 111981924A
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CN
China
Prior art keywords
nhn
initiating explosive
incineration
medicament
soaking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010910907.7A
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Chinese (zh)
Inventor
梅喜龙
马志刚
李青
何毅
唐益民
付应群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yahua Group Mianyang Industrial Co Ltd
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Yahua Group Mianyang Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yahua Group Mianyang Industrial Co Ltd filed Critical Yahua Group Mianyang Industrial Co Ltd
Priority to CN202010910907.7A priority Critical patent/CN111981924A/en
Publication of CN111981924A publication Critical patent/CN111981924A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D5/00Safety arrangements
    • F42D5/04Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23QIGNITION; EXTINGUISHING-DEVICES
    • F23Q21/00Devices for effecting ignition from a remote location

Abstract

The invention discloses a safety explosion cancellation method of NHN (polyethylene glycol N) initiating explosive, belonging to the technical field of explosion firer, comprising a pretreatment step and an incineration step, wherein the pretreatment method comprises the following steps: soaking NHN initiating explosive in water, dewatering, controlling the water content of NHN initiating explosive at 7-10%, and soaking the dewatered initiating explosive in flammable liquid B (such as diesel oil/kerosene); the invention also discloses a device adopted in the incineration step; the method for destroying the NHN medicament does not generate secondary wastewater treatment, and has low destroying cost, safety and reliability; meanwhile, the destroying time is shortened, and the efficiency is improved.

Description

Safe detonation method and device for NHN (polyethylene glycol N) initiating explosive
Technical Field
The invention relates to the technical field of blasting initiating explosive devices, in particular to a safe detonation method and device for NHN initiating explosive.
Background
The application of the current initiating explosive in the initiating equipment industry NHN (namely nickel hydrazine nitrate) is expanded year by year, and the current mainstream DDNP initiating explosive is replaced. With the increasing production application of NHN detonator products, more and more process waste explosive (needing to be subjected to pin blasting treatment) is generated in the production process of the products, and the production safety risk brought by the process waste explosive is higher.
For the pin blasting of NHN initiating explosive, the pin blasting method adopted by most of the current production enterprises is a chemical decomposition method, the pin blasting method is relatively thorough, the single pin blasting amount is limited, the dosage of chemical reagents such as strong acid and the like in the pin blasting process is large, nickel ions in subsequent pin blasting wastewater exceed the standard, and the treatment cost is high;
for example, using a chemical decomposition process, such as the pin-blasting of 1kg of NHN primer, 5l of dilute nitric acid is required to produce about 20l of wastewater. Wherein the cost of the nitric acid is about 5 yuan, the cost of the 20L wastewater treatment is about 26 yuan, the cost is about 31 yuan approximately, 1kg of NHN initiating explosive needs to be sold and exploded, 1L of diesel oil and 0.5L of alcohol are consumed, and the treatment cost is about 7 yuan.
In addition, the Chinese patent application No. 200410040167.7 entitled "a method and a device for destroying waste detonators" discloses a method for destroying waste detonators, which comprises the steps of soaking the waste detonators in engine oil or diesel oil, and completely soaking and passivating the primary explosive and the high explosive contained in the waste detonators to lose the explosive property;
however, the method is to process a semi-finished detonator product, wherein the primary explosive agent is in a shape of a closed chamber block in the pipe body, and the contact part with diesel oil is only provided with a round hole with the diameter of 2.0mm, so the soaking passivation effect is poor, and the soaking time is long; furthermore, the person skilled in the art is familiar with: the basic detonator (explosive column tube) which is not filled with the initiating explosive is processed, and then the basic detonator can be destroyed by adopting a passivation burning method, and the basic detonator which is filled with the initiating explosive is destroyed by adopting a blasting method, because the initiating explosive can be completely passivated by diesel oil under the condition of compaction, the detonation can be easily caused during combustion destruction. In addition, more importantly, the application time of the patent is 2004, but as well known by those skilled in the art, the NHN initiating explosive is popularized and used after 2008, that is, the method is to carry out pin blasting on a detonator, is not directed to the NHN initiating explosive or is not suitable for the NHN initiating explosive, and has long pin blasting time and low efficiency.
The method can not safely destroy various initiating explosive in batches (not only NHN, but also most of the initiating explosive can not be destroyed by directly soaking in diesel oil and can be realized only after treatment, because the method is adopted to directly pour dry NHN into the diesel oil for soaking, firstly, certain risk exists, and because the initiating explosive powder state has high mechanical sensitivity, the risk of accidental explosion of soaking operation exists (when the initiating explosive is pressed into a detonator, the initiating explosive is in a block shape, the mechanical sensitivity is reduced, and the risk of the detonator diesel oil soaking operation is controllable), secondly, when the initiating explosive is soaked in oil production diesel oil for burning, the initiating explosive needs to be spread, and when the initiating explosive is directly soaked in the NHN initiating explosive (non-aqueous) state, the phenomenon of burning and explosion easily occurs in the burning process under the condition of certain thickness, the unexpected loss is caused, and the safety risk is increased.
Disclosure of Invention
One of the objectives of the present invention is to provide a safe method for selling NHN initiating explosive to solve the above problems.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a safety pin blasting method of NHN initiating explosive comprises a pretreatment step and an incineration step, wherein the pretreatment step comprises the following steps: soaking NHN initiating explosive in water, dewatering, controlling the water content of NHN initiating explosive at 7-10 wt%, and soaking the dewatered initiating explosive in inflammable liquid B with flash point lower than 45 deg.c at 28 deg.c, such as diesel oil, kerosene, etc.
Firstly, the purpose of the soaking of this application is to passivate the NHN, reduce the sensitivity, facilitate subsequent destruction work. The larger the moisture content is, the more insensitive the medicament is, the higher the operation safety is, however, if the moisture content is too high, the phenomenon of incomplete combustion can occur in the subsequent combustion destruction treatment process, and the subsequent treatment risk is destroyed, so the purpose of adopting alcohol dehydration is to control the NHN to be about 7-10%, and the control in the range not only can ensure the safety of the destruction operation, but also can ensure the complete destruction;
the purpose of the immersion is to reduce the sensitivity of the NHN primer. Because NHN is after soaking, water is fully filled between the medicament granule, keeps apart it, has reduced the friction between the medicament and has taken place the explosion probability on the one hand, and on the other hand, water also can in time derive the heat that the medicament produced and volatilize as the medium, makes it be difficult for taking place the explosion when external energy arouses. Meanwhile, when the water content is excessive, the operation safety is higher, but the more the water content is, the more incomplete the combustion and destruction is, the residual medicament after combustion basically becomes dry medicament, the sensitivity is higher, and the potential safety hazard is buried for subsequent collection and treatment. Therefore, it is necessary to control the water content within a certain range and to perform incineration treatment. The purpose of alcohol dehydration is to control the alcohol dehydration within a proper range, and the operation is simple and practical and is convenient to control.
The test shows that: if the moisture content of the NHN is too large, the NHN is burnt after soaking the diesel oil, incomplete burning can occur, and the NHN remains. Therefore, the method controls the NHN within a certain water content range, and ensures stable combustion and no explosion when the NHN is destroyed by soaking combustion.
Further, NHN, DDNP and lead nitride are all initiating explosives, but their properties are different. Firstly, the mechanical sensitivity of the lead nitride is sensitive, the lead nitride still has high sensitivity even if the lead nitride is soaked in water, meanwhile, the detonation of the initiating explosive is extremely fast to increase, the initiating explosive is easy to explode when being burnt and destroyed, and the initiating explosive cannot be destroyed by burning. Although the sensitivity of DDNP can be reduced after soaking in water, the detonation growth of DDNP is also relatively large, and the DDNP is still relatively easy to explode when destroyed by combustion. In addition, after the DDNP is soaked, the water body is dyed yellow, and the washing water of the DDNP still needs to be treated. The detonation of the NHN initiating explosive grows relatively slowly, so that the NHN initiating explosive has certain precondition by adopting a combustion destruction method, and the combustion state is controlled by the moisture content, so that the NHN initiating explosive is safely and stably combusted, and the phenomenon of converting detonation into detonation does not occur. That is, the method of the present invention can be used only for NHN and not for DDNP or other initiating explosive such as lead azide.
As a preferred technical scheme: the dehydration method is suction filtration and alcohol addition.
As a preferred technical scheme: spreading the pretreated medicament on an incineration device, wherein the spreading thickness of the medicament is 1-2cm, and the spreading width of the medicament is 80-100cm, and then igniting.
Under the condition that the thickness of the agent is kept unchanged by 1-2cm, the length and the width of the agent can be adjusted according to the condition of a destruction field, so that the environmental adaptability of the method for destroying the agent is improved.
As a further preferable technical scheme: and ignition is carried out through remote control during ignition.
As a further preferable technical scheme: and a firing cable is adopted for ignition during ignition.
As a further preferable technical scheme: the incineration device is a metal plate with a scraper.
The purpose of scraper blade is when making things convenient for the medicament to spread, guarantees that the spread of medicament is even, thickness is unanimous, is favorable to improving operating efficiency, keeps the stability of combustion process simultaneously.
The burning device can be replaced by a common metal plate without a special burning device, and the ignition device can be replaced by a firing cable so as to improve the convenience of destroying the NHN medicament.
As a preferred technical scheme: soaking for 30 min; the suction filtration time is 5 min; the soaking time in diesel oil is 30 min.
As a preferred technical scheme: a small amount of combustible substances such as paper scraps and the like can be added into the pretreated and passivated medicament, so that the subsequent spreading operation of the medicament is facilitated, and the destruction time of the medicament is shortened.
The second purpose of the invention is to provide a device for burning the medicament in the method, which adopts the technical scheme that: the incinerator comprises an incineration tray, a scraper plate is arranged above the incineration tray, a collecting tank is arranged at one end of the incineration tray, and an ignition device is arranged at one end of the collecting tank.
As a preferred technical scheme: burn the tray and be rectangular stainless steel dish, its two long limits and a minor face setting enclose the fender, the fender that encloses on two long limits is provided with and is used for the guide rail of scraper blade level back and forth movement, the collecting vat sets up in the one end that burns the tray and do not establish and enclose the fender.
Compared with the prior art, the invention has the advantages that: the method for destroying the NHN medicament does not generate secondary wastewater treatment, and has low destroying cost, safety and reliability; meanwhile, the destroying time is shortened, and the efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of an incineration apparatus according to an embodiment of the present invention.
In the figure: 1. an incineration tray; 2. an ignition device; 3. a scraper.
Detailed Description
The invention will be further explained with reference to the drawings.
Example 1:
a safety pin blasting method of NHN initiating explosive comprises a pretreatment step and an incineration step, wherein the pretreatment step comprises the following steps: the treatment capacity can be determined according to the actual situation and the size of a soaking device, the treatment capacity is 1-30kg, generally 5kg is suitable for once destruction, after the NHN initiating explosive is soaked in water for 30min, the soaked explosive is poured into a suction filtration device for suction filtration for 5min, then alcohol is poured into the sucked explosive for soaking for 3min, suction filtration is carried out again, alcohol is extracted to ensure that the water content in the explosive is 7-10% by mass, finally the dehydrated explosive is poured into diesel oil for soaking for 30min, and the diesel oil can be properly stirred, so that the pretreatment of the explosive is completed; then carrying out an incineration step: paving kraft paper on the incineration device, then paving the pretreated and passivated medicament to be 1-2cm in thickness, keeping the medicament uniform and continuous, igniting the medicament by using a remote ignition device after personnel quit, checking combustion residues on site after the medicament is combusted, and confirming the destruction condition;
the structure of the incineration device of the embodiment is as shown in fig. 1, and the incineration device comprises an incineration tray 1, a V-shaped scraper 3 is arranged above the incineration tray 1, a collecting tank is arranged at one end of the incineration tray 1, and an ignition device 2 is arranged at one end of the collecting tank; incineration tray 1 is rectangle stainless steel dish, and its two long limits and a minor face set up and enclose the fender, the fender that encloses on two long limits is provided with and is used for 3 level back and forth movements's of scraper blade guide rail, the collecting vat sets up in incineration tray and does not establish the one end that encloses the fender.
By adopting the method of the embodiment, taking 5kg of destruction each time as an example, the total destruction time is 70min, and the destruction cost is about 35 yuan.
Comparative example 1:
in this comparative example, the destruction agent was DDNP, as compared with example 1, and as a result, there was a case where deflagration occurred instantaneously when DDNP was destroyed by combustion.
Comparative example 2:
the destruction agent of the comparative example is NHN, the remaining operations after suction filtration and without alcohol dehydration (i.e. moisture > 13%) are the same as in example 1, and after combustion of the agent, some NHN particles are scattered on the metal plate and cannot be completely destroyed.
Comparative example 3
The destruction agent of the comparative example is NHN, after suction filtration, dehydration is carried out for more than 8min by using alcohol (namely, the moisture is less than 7%), the rest of the operation is the same as that of the example 1, when the agent is combusted, the combustion speed is high, the flame height is more than 3m, and obvious combustion sound can be intermittently heard, and the possibility of converting into deflagration can be generated.
Example 2:
under the condition that other operations of destroying the NHN are the same as those in the embodiment 1, when diesel oil is soaked and stirred, a plurality of shredded paper scraps are properly added, so that gaps among the medicament particles to be destroyed are increased, the shape of the medicament particles to be destroyed is conveniently maintained when the medicament is spread, the density of the medicament is reduced, and the risk of deflagration is further reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A safety pin blasting method of NHN initiating explosive is characterized in that: the method comprises a pretreatment step and an incineration step, wherein the pretreatment method comprises the following steps: soaking NHN initiating explosive in water, dewatering, controlling the water content of NHN initiating explosive at 7-10%, and soaking the dewatered initiating explosive in class B inflammable liquid with flash point below 45 deg.c below 28 deg.c.
2. The NHN initiator safe round-off method as set forth in claim 1, wherein: the dehydration method is suction filtration and alcohol addition.
3. The NHN initiator safe round-off method as set forth in claim 1, wherein: the incineration step is as follows: spreading the pretreated medicament on an incineration device, wherein the spreading thickness of the medicament is 1-2cm, and the spreading width of the medicament is 80-100cm, and then igniting.
4. A method of safely selling NHN initiating explosive according to claim 3, wherein: and ignition is carried out through remote control during ignition.
5. A method of safely selling NHN initiating explosive according to claim 3, wherein: and a firing cable is adopted for ignition during ignition.
6. A method of safely selling NHN initiating explosive according to claim 3, wherein: the incineration device is a metal plate.
7. A method for safe pin blasting of NHN initiators as claimed in claim 1 or 2, wherein: soaking for 30 min; the suction filtration time is 5 min; the soaking time in diesel oil is 30 min.
8. The NHN initiator safe round-off method as set forth in claim 1, wherein: combustible substances in the pretreated medicament.
9. An NHN initiating explosive safety pin blasting device, characterized by: the incinerator comprises an incineration tray, a scraper plate is arranged above the incineration tray, a collecting tank is arranged at one end of the incineration tray, and an ignition device is arranged at one end of the collecting tank.
10. An NHN initiator safety pin blast apparatus as set forth in claim 9, wherein: burn the tray and be rectangular stainless steel dish, its two long limits and a minor face setting enclose the fender, the fender that encloses on two long limits is provided with and is used for the guide rail of scraper blade level back and forth movement, the collecting vat sets up in the one end that burns the tray and do not establish and enclose the fender.
CN202010910907.7A 2020-09-02 2020-09-02 Safe detonation method and device for NHN (polyethylene glycol N) initiating explosive Pending CN111981924A (en)

Priority Applications (1)

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CN202010910907.7A CN111981924A (en) 2020-09-02 2020-09-02 Safe detonation method and device for NHN (polyethylene glycol N) initiating explosive

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CN202010910907.7A CN111981924A (en) 2020-09-02 2020-09-02 Safe detonation method and device for NHN (polyethylene glycol N) initiating explosive

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