CN115636711A - High-fluidity antistatic lac granulation detonator medicine and preparation method thereof - Google Patents
High-fluidity antistatic lac granulation detonator medicine and preparation method thereof Download PDFInfo
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- CN115636711A CN115636711A CN202211284074.3A CN202211284074A CN115636711A CN 115636711 A CN115636711 A CN 115636711A CN 202211284074 A CN202211284074 A CN 202211284074A CN 115636711 A CN115636711 A CN 115636711A
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- 238000005469 granulation Methods 0.000 title claims abstract description 97
- 230000003179 granulation Effects 0.000 title claims abstract description 97
- 239000003814 drug Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 58
- XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000004094 surface-active agent Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002131 composite material Substances 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000344 soap Substances 0.000 claims abstract description 24
- 108010010803 Gelatin Proteins 0.000 claims abstract description 22
- 229920000159 gelatin Polymers 0.000 claims abstract description 22
- 239000008273 gelatin Substances 0.000 claims abstract description 22
- 235000019322 gelatine Nutrition 0.000 claims abstract description 22
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000013543 active substance Substances 0.000 claims abstract description 9
- 239000012190 activator Substances 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims description 51
- 238000002156 mixing Methods 0.000 claims description 24
- 229920001800 Shellac Polymers 0.000 claims description 20
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 claims description 20
- 229940113147 shellac Drugs 0.000 claims description 20
- 235000013874 shellac Nutrition 0.000 claims description 20
- 239000004208 shellac Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 16
- 238000002161 passivation Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000004821 distillation Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229940079593 drug Drugs 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 239000011343 solid material Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 16
- 239000002216 antistatic agent Substances 0.000 abstract description 8
- 239000002360 explosive Substances 0.000 description 9
- 238000004806 packaging method and process Methods 0.000 description 5
- 238000012216 screening Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B25/00—Compositions containing a nitrated organic compound
- C06B25/34—Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0066—Shaping the mixture by granulation, e.g. flaking
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention provides a high-fluidity antistatic lac granulation detonator medicine which is prepared from the following raw materials in parts by weight: 50 parts of cyclonite; 50-175 parts of water; 0.05 to 0.10 portion of composite surfactant; 0.5-1.0 part of lac; 2.5-11.5 parts of ethanol; 0.005-0.025 parts of colloidal graphite powder; the composite surfactant comprises gelatin and a soap active agent; the mass ratio of the gelatin to the soap activator is 1. The invention adopts the colloidal graphite powder as the antistatic agent, on one hand, the electrostatic sensitivity of the lac granulation detonator can be further eliminated, and on the other hand, the free-running property of the lac granulation detonator can be greatly improved. Meanwhile, the finally prepared lac granulation detonator medicament has high free-running property and good antistatic property by optimizing the addition amount of each raw material.
Description
The application is a divisional application of an invention patent with the application date of 2018, 21.08 and 7, the application number of 201810953617.3 and the invention name of 'a high-scattering antistatic lac granulation detonator medicine and a preparation method thereof'.
Technical Field
The invention relates to the technical field of detonator application, in particular to a high-scattering antistatic lac granulation detonator application and a preparation method thereof.
Background
Detonator application is one of the important components of industrial detonators. The quality of the detonator explosive property directly determines the initiation capability, the application range and the application place of the industrial detonator. The detonator explosive is generally composed of high explosive, and the hexogen is a commonly used high explosive, and the performance of the detonator explosive can meet certain use requirements. However, the traditional hexogen and shellac granulated hexogen explosive also have certain defects when used as the explosive charge of the detonator, such as high electrostatic sensitivity, poor free-flowing property and adhesion property which need to be improved, and the defects bring certain constraints to the development of the detonator production industry.
In recent years, the industrial blasting industry in China is rapidly developed, the use amount of industrial detonators is increased day by day, the automation degree of detonator production is higher and higher, and therefore, the requirements on detonator application are higher and higher, for example, the detonator application production process requires that the detonator application cannot be bonded or blocked, and the detonator application production process needs to have better fluidity and antistatic property, otherwise, the safety and the product quality of a detonator automatic application production line can be influenced.
However, most of the prior art detonator medicines only add the gelatin surfactant, so that the adhesive property of the detonator medicines is improved, but the defects of high electrostatic sensitivity and poor free-running property still exist, and the high-quality standard requirements of high free-running property and high antistatic property of the detonator medicines are difficult to meet.
Disclosure of Invention
The invention aims to provide a high-fluidity antistatic lac granulation detonator medicine and a preparation method thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a high-fluidity antistatic lac granulation detonator medicine which is prepared from the following raw materials in parts by weight:
50 parts of cyclonite;
50-175 parts of water;
0.05 to 0.10 portion of composite surfactant;
0.5-1.0 part of lac;
2.5-11.5 parts of ethanol;
0.005-0.025 parts of colloidal graphite powder;
the composite surfactant comprises gelatin and a soap active agent; the mass ratio of the gelatin to the soap activator is 1.5-5.5;
the preparation method of the high-scattering antistatic lac granulation detonator comprises the following steps:
mixing water, hexogen and a composite surfactant to obtain a first suspension;
dropwise adding an ethanol solution of the lac into the first suspension for lac granulation to obtain a second suspension;
removing the solvent in the second suspension to obtain a lac granulation product;
and mixing the lac granulation product with colloidal graphite powder for passivation to obtain the lac granulation detonator medicine.
Preferably, the soap active comprises soap flakes or soap powder.
Preferably, the particle size of the medicament for the lac granulation detonator is 20-60 meshes.
The invention provides a preparation method of a high-scattering antistatic lac granulation detonator medicine, which comprises the following steps:
mixing water, cyclonite and a composite surfactant to obtain a first suspension;
dropwise adding an ethanol solution of the lac into the first suspension for lac granulation to obtain a second suspension;
removing the solvent in the second suspension to obtain a lac granulation product;
and mixing the lac granulation product with colloidal graphite powder for passivation to obtain the lac granulation detonator medicine.
Preferably, the dripping time of the lac ethanol solution is controlled to be 10-30 min, and the dripping temperature is controlled to be 70-78 ℃.
Preferably, the method for removing the solvent from the second suspension comprises the following steps:
distilling the second suspension to obtain a distilled material;
and carrying out solid-liquid separation on the distillation material, and washing and drying the obtained solid material in sequence.
Preferably, the distillation is carried out under stirring conditions; the distillation temperature is 78-85 ℃, and the pressure is 0.02-0.04 MPa.
Preferably, the drying temperature is 90-110 ℃ and the drying time is 5-6 h.
Preferably, the passivation temperature is 20-40 ℃ and the time is 20-40 min.
The invention provides a high-fluidity antistatic lac granulation detonator medicine which is prepared from the following raw materials in parts by weight: 50 parts of cyclonite; 50-175 parts of water; 0.05 to 0.10 portion of composite surfactant; 0.5-1.0 part of lac; 2.5-11.5 parts of ethanol; 0.005-0.025 parts of colloidal graphite powder; the composite surfactant comprises gelatin and a soap active agent; the mass ratio of the gelatin to the soap activator is 1.5-5.5; the preparation method of the high-scattering antistatic lac granulation detonator comprises the following steps: mixing water, cyclonite and a composite surfactant to obtain a first suspension; dropwise adding an ethanol solution of the lac into the first suspension for lac granulation to obtain a second suspension; removing the solvent in the second suspension to obtain a lac granulation product; and mixing the lac granulation product with colloidal graphite powder for passivation to obtain the lac granulation detonator medicine. The gelatin can improve the bonding property of the lac, and the soap active agent can solve the problem of the increase of the electrostatic sensitivity of the lac granulation detonator due to the addition of the gelatin; in addition, the invention adopts the colloidal graphite powder as the antistatic agent, on one hand, the electrostatic sensitivity of the lac granulation detonator can be further eliminated, and on the other hand, the free-running property of the lac granulation detonator can be greatly improved. Meanwhile, the finally prepared lac granulation detonator medicament has high free-running property and good antistatic property by optimizing the addition amount of each raw material. Experimental data show that under the condition of full explosion of a 25-generation detonator, the electrostatic sensitivity of the shellac granulation detonator provided by the invention is 0%, the impact sensitivity is 40%, the fluidity is 23.6s, and the charge mass density is 850 mu c/Kg.
The preparation method of the high-scattering antistatic lac granulation detonator medicine provided by the invention is simple to operate and low in production cost, greatly promotes the intrinsic safety, the product quality and the charging capacity of an automatic detonator assembly line, and is suitable for large-scale production.
Detailed Description
The invention provides a high-fluidity antistatic lac granulation detonator medicine which is prepared from the following raw materials in parts by weight:
50 parts of cyclonite;
50-175 parts of water;
0.05 to 0.10 portion of composite surfactant;
0.5-1.0 part of lac;
2.5-11.5 parts of ethanol;
0.005-0.025 parts of colloidal graphite powder;
the composite surfactant comprises gelatin and a soap active agent.
In the present invention, all the raw material components are commercially available products well known to those skilled in the art unless otherwise specified.
In the invention, the raw materials for preparing the high-scattering antistatic lac granulation detonator comprise 50 parts by weight of cyclonite. In the present invention, the particle size of the hexogen is preferably 20 to 60 mesh.
In the invention, the raw materials for preparing the high-flow-dispersion antistatic lac granulation detonator comprise 50-175 parts of water, preferably 75-150 parts of water, more preferably 100-125 parts of water, and most preferably 110 parts of water based on the weight parts of the hexogen. In the invention, the mass ratio of water to cyclonite is small, and the obtained lac granulation detonator has high bulk density which can reach 0.90g/cm < 3 > at most; the mass ratio of water to hexogen is large, and the obtained lac granulation detonator medicine has small apparent density which can be as low as 0.60g/cm < 3 >. The invention ensures that the cyclonite is fully dispersed and suspended in the water and provides a carrier for explosive granulation by controlling the amount of the added water to be 1.0 to 3.5 times of the mass of the cyclonite.
In the invention, the raw materials for preparing the high-fluidity antistatic lac granulation detonator medicament comprise 0.05 to 0.10 part of composite surfactant, preferably 0.6 to 0.9 part, more preferably 0.7 to 0.8 part and most preferably 0.75 part by weight of the cyclonite. In the invention, the composite surfactant comprises gelatin and a soap active agent, and the mass ratio of the gelatin to the soap active agent is preferably 1.5-5.5, and more preferably 1:5. In the invention, the gelatin can improve the bonding property of the lac, and the soap active agent can solve the problem of the increase of the electrostatic sensitivity of the lac granulation detonator due to the addition of the gelatin. In the invention, the addition amount of the composite surfactant is too small, the hexogen is difficult to granulate, and the product after the lac granulation has small granularity and poor free-running property; the addition amount of the composite surfactant is too much, the activity of the surfactant is too strong, so that excessive foam is generated in a system consisting of deionized water, hexogen and the composite surfactant in the preparation process, and the product after the lac granulation has large static electricity and small density. The addition of the composite surfactant in the invention is 0.10-0.20% of the mass of the hexogen, the surface tension of water is reduced, and the lac can be firmly adhered to the surface of explosive particles.
In the invention, the raw materials for preparing the high-fluidity antistatic lac granulation detonator comprise 0.5-1.0 part of lac, preferably 0.6-0.9 part of lac, and more preferably 0.7-0.8 part of lac based on the weight parts of the cyclonite. In the invention, the lac is used as a binder, so that the binding property of the lac granulation product can be improved.
In the invention, the raw materials for preparing the high-fluidity antistatic lac granulation detonator comprise 2.5 to 11.5 parts of ethanol, preferably 6 to 10.5 parts of ethanol, and more preferably 6.5 to 10.0 parts of ethanol by weight of the cyclonite. In the invention, the ethanol can fully dissolve the lac, thereby being beneficial to providing necessary conditions for the lac to bond the hexogen.
In the invention, the raw materials for preparing the high-scattering antistatic shellac detonator comprise 1 to 2.5 parts of colloidal graphite powder, preferably 1.5 to 2 parts of hexogen by weight. The invention adopts the colloidal graphite powder as the antistatic agent, which can eliminate the electrostatic sensitivity of the shellac granulation detonator and greatly improve the free-running property. In the invention, the addition amount of the colloidal graphite powder is too much, which can affect the initiation performance of the lac granulation detonator; the fluidity and the safety of the medicament for the lac granulation detonator can be affected by the addition of too little colloidal graphite powder. The addition amount of the colloidal graphite powder in the invention is 0.02-0.05% of the mass of the hexogen, thus greatly improving the fluidity and the antistatic property of the charging of the lac granulation detonator.
The invention provides a preparation method of a high-scattering antistatic lac granulation detonator medicine, which comprises the following steps:
mixing water, cyclonite and a composite surfactant to obtain a first suspension;
dropwise adding an ethanol solution of the lac into the first suspension for lac granulation to obtain a second suspension;
removing the solvent in the second suspension to obtain a lac granulation product;
and mixing the lac granulation product with colloidal graphite powder for passivation to obtain the lac granulation detonator medicine.
According to the invention, water, cyclonite and a composite surfactant are mixed to obtain a first suspension. In the present invention, the mixing of the water, the hexogen and the complex surfactant is preferably a complex surfactant which is obtained by mixing the water and the hexogen and then adding the gelatin and the transparent soap to the resultant material under stirring. The stirring time and speed are not particularly limited, and all the raw materials can be uniformly mixed.
After the first suspension is obtained, the invention adds the ethanol solution of the lac dropwise into the first suspension for lac granulation to obtain the second suspension. In the invention, the dripping time of the ethanol solution of the lac is preferably controlled to be 10-30 min, and more preferably 15-25 min; the dropping temperature is controlled to be 70 to 78 ℃, and more preferably 73 to 75 ℃. In the invention, the ethanol solution of the lac is dripped in the range of 70-78 ℃, the temperature range is close to the freezing point of the lac of 75 ℃, which is beneficial to exerting the caking property of the lac; the dripping time is controlled within the range of 10-30 min, which is beneficial to controlling the size of the bonding granularity. In the present invention, the dropping is preferably performed under stirring conditions; in the invention, the stirring speed is 500-700 r/min, and the stirring time is not less than 20min. In the invention, the ethanol solution of the lac is dripped under full stirring, so that the dripped ethanol solution of the lac can be instantly and quickly dispersed into the first suspension to bond the cyclonite.
After the second suspension is obtained, the solvent in the second suspension is removed to obtain the lac granulation product. In the present invention, the method for removing the solvent from the second suspension preferably comprises the steps of:
distilling the second suspension to obtain a distilled material;
and carrying out solid-liquid separation on the distilled material, and washing and drying the obtained solid material in sequence.
According to the invention, the second suspension is preferably subjected to distillation to obtain a distillate. In the present invention, the distillation is preferably carried out under stirring conditions; the stirring rate is not particularly limited in the present invention, and a stirring rate known to those skilled in the art may be used. In the present invention, the distillation temperature is preferably 78 to 85 ℃ and the pressure is preferably 0.02 to 0.04MPa. In the present invention, the distillation is to remove most of the ethanol solvent in the second suspension and to harden the bonded particles in the system.
After the distillation material is obtained, the invention preferably performs solid-liquid separation on the distillation material, and sequentially washes and dries the obtained solid material. The solid-liquid separation method is not particularly limited, and the solid-liquid separation method can be implemented by adopting a technical scheme of solid-liquid separation, which is well known to those skilled in the art, such as filtration. The washing method of the present invention is not particularly limited, and a washing method known to those skilled in the art may be used. In the present invention, the drying temperature is preferably 90 to 110 ℃ and the drying time is preferably 5 to 6 hours.
After the lac granulation product is obtained, the lac granulation product and the colloidal graphite powder are mixed and passivated to obtain the lac granulation detonator medicine. In the present invention, the temperature of the passivation is preferably 20 to 40 ℃, and the time is preferably 20 to 40min. The present invention has no particular limitation on the specific operation steps of the passivation, and the passivation technical scheme well known to those skilled in the art can be adopted. The shellac granulation product and the colloidal graphite powder are preferably added into a rotatable passivation machine for rotary mixing, so that the colloidal graphite powder is uniformly coated on the surface of the shellac granulation product, thereby eliminating the static accumulation of the shellac granulation product, and meanwhile, the colloidal graphite powder has a lubricating effect and can improve the free-running property of the shellac granulation product.
After the passivation is finished, the obtained product is preferably screened and packaged to obtain the medicament product for the lac granulation detonator. The screening and packaging of the present invention is not particularly limited, and according to the actual needs, screening and packaging technical schemes well known to those skilled in the art can be adopted.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Adding 300g of water and 300g of hexogen into a granulator, uniformly mixing, adding a composite surfactant consisting of 0.05g of gelatin and 0.25g of transparent soap under a stirring state, and uniformly mixing to obtain a first suspension;
under the condition of full stirring, when the temperature of the first suspension liquid rises to 70 ℃, 37.88g of an ethanol solution of the lac with the mass fraction of 8% is dripped for lac granulation, and the dripping time is 10min, so as to obtain a second suspension liquid;
distilling the second suspension liquid under the conditions of stirring, negative pressure of 0.02-0.04 MPa and temperature of 78-85 ℃ to remove ethanol to obtain a distilled material; filtering the distillation material, washing the obtained solid material, and drying at 90 ℃ for 5 hours to obtain a lac granulation product;
and mixing the lac granulation product with 0.06g of colloidal graphite powder antistatic agent for passivation, screening and packaging to obtain the lac granulation detonator medicine.
Example 2
Adding 600g of water and 300g of hexogen into a granulator, uniformly mixing, adding a composite surfactant consisting of 0.075g of gelatin and 0.375g of transparent soap under a stirring state, and uniformly mixing to obtain a first suspension;
under the condition of full stirring, when the temperature of the first suspension liquid rises to 72 ℃, 45.68g of ethanol solution of shellac with the mass fraction of 10% is dripped for carrying out shellac granulation, and the dripping time is 20min, so as to obtain a second suspension liquid;
distilling the second suspension liquid under the conditions of stirring, negative pressure of 0.02-0.04 MPa and temperature of 78-85 ℃ to remove ethanol to obtain a distilled material; filtering the distillation material, washing the obtained solid material, and drying at 100 ℃ for 5.5 hours to obtain a lac granulation product;
and mixing the lac granulation product with 0.09g of colloidal graphite powder antistatic agent for passivation, screening and packaging to obtain the lac granulation detonator medicine.
Example 3
Adding 900g of water and 300g of hexogen into a granulator, uniformly mixing, adding a composite surfactant consisting of 0.1g of gelatin and 0.5g of transparent soap under a stirring state, and uniformly mixing to obtain a first suspension;
under the condition of full stirring, when the temperature of the first suspension liquid rises to 74 ℃, 51.02g of an ethanol solution of shellac with the mass fraction of 12% is dripped for carrying out shellac granulation, and the dripping time is 30min, so as to obtain a second suspension liquid;
distilling the second suspension liquid under the conditions of stirring, negative pressure of 0.02-0.04 MPa and temperature of 78-85 ℃ to remove ethanol to obtain a distilled material; filtering the distillation material, washing the obtained solid material, and drying at 100 ℃ for 6 hours to obtain a lac granulation product;
and mixing the lac granulation product with 0.15g of colloidal graphite powder antistatic agent for passivation, screening and packaging to obtain the lac granulation detonator medicine.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and amendments can be made without departing from the principle of the present invention, and these modifications and amendments should also be considered as the protection scope of the present invention.
Comparative example 1
The amount of other raw materials and the preparation method were the same as in example 1, except that no colloidal graphite powder antistatic agent was added.
Comparative example 2
Soap surfactant was not added, the surfactant used was gelatin surfactant, and the amounts of other raw materials and preparation method were the same as in example 1.
Table 1 shows the quality indexes of the high-scattering antistatic detonator prepared in examples 1-3, which are as follows:
TABLE 1 quality index of the high-scattering antistatic detonator prepared in examples 1 to 3 of the present application
As can be seen from table 1, the lac granulation detonator medication prepared in examples 1 to 3 of the present invention has an iron red fine particle appearance, and no macroscopic mechanical impurity optics; the granularity of the composite material is up to 97.0 percent in the range of 0.25-0.85 mm, the water content is 0.10 percent, and the bulk density is 0.60-0.90 g/cm < 3 >. The quality of the product of the lac granulation detonator is qualified and meets the standard of detonator use.
The impact sensitivity, fluidity, charge mass density and electrostatic sensitivity of the shellac granulation detonator used in examples 1 to 3 and comparative examples 1 to 4 were measured according to the national standard test methods, and the results are shown in table 2.
Table 2 results of performance test of the shellac granulation detonator drug used in examples 1 to 3 and comparative examples 1 to 2
As can be seen from Table 2, the shellac granulated detonator coating compositions prepared in examples 1 to 3 of the present invention exhibited significantly lower impact sensitivity, fluidity, charge mass density and electrostatic sensitivity than those prepared without adding an antistatic agent. The lac granulation detonator provided by the invention has the advantages of low electrostatic sensitivity, better free-running property and safer and more reliable production and use processes. Compared with the detonator medicament prepared by adding the gelatin surfactant, the shellac granulation detonator medicament prepared in the embodiments 1 to 3 of the invention has the advantages that the impact sensitivity, the fluidity, the charge mass density and the electrostatic sensitivity are also obviously reduced, and the effects of improving the product quality and reducing the safety risk are also realized. The medicine for the lac granulation detonator provided by the invention has the function of high-scattering and antistatic, and is more suitable for the requirements of the automatic detonator assembly process.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The high-fluidity antistatic lac granulation detonator medicine is prepared from the following raw materials in parts by weight:
50 parts of cyclonite;
50-175 parts of water;
0.05 to 0.10 portion of composite surfactant;
0.5-1.0 part of lac;
2.5-11.5 parts of ethanol;
0.005-0.025 parts of colloidal graphite powder;
the composite surfactant comprises gelatin and a soap active agent; the mass ratio of the gelatin to the soap activator is 1.5-5.5;
the preparation method of the high-scattering antistatic lac granulation detonator comprises the following steps:
mixing water, hexogen and a composite surfactant to obtain a first suspension;
dropwise adding an ethanol solution of the lac into the first suspension for lac granulation to obtain a second suspension;
removing the solvent in the second suspension to obtain a lac granulation product;
and mixing the lac granulation product with colloidal graphite powder for passivation to obtain the lac granulation detonator medicine.
2. The high-flow antistatic shellac granulation detonator drug use of claim 1 wherein the soap activator comprises soap flakes or soap powder.
3. The high-fluidity antistatic shellac granulation detonator drug use according to claim 1, wherein the particle size of the shellac granulation detonator drug use is 20 to 60 mesh.
4. A process for preparing a high-effluence antistatic lac-sized prilled detonator according to any one of claims 1 to 3, comprising the steps of:
mixing water, cyclonite and a composite surfactant to obtain a first suspension;
dropwise adding an ethanol solution of the lac into the first suspension for lac granulation to obtain a second suspension;
removing the solvent in the second suspension to obtain a lac granulation product;
and mixing the lac granulation product with colloidal graphite powder for passivation to obtain the lac granulation detonator medicine.
5. The preparation method according to claim 4, wherein the dropwise addition time of the ethanol solution of shellac is controlled to 10-30 min, and the dropwise addition temperature is controlled to 70-78 ℃.
6. The method of claim 4, wherein the step of removing the solvent from the second suspension comprises the steps of:
distilling the second suspension to obtain a distilled material;
and carrying out solid-liquid separation on the distilled material, and washing and drying the obtained solid material in sequence.
7. The production method according to claim 6, wherein the distillation is performed under stirring conditions; the distillation temperature is 78-85 ℃, and the pressure is 0.02-0.04 MPa.
8. The preparation method according to claim 6, wherein the drying temperature is 90-110 ℃ and the drying time is 5-6 h.
9. The method according to claim 4, wherein the passivation temperature is 20-40 ℃ and the time is 20-40 min 。
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| GB1093531A (en) * | 1948-06-07 | 1967-12-06 | Mini Of Technology | Improvements in or relating to the manufacture of explosives |
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| CN102887806A (en) * | 2012-09-22 | 2013-01-23 | 山西北化关铝化工有限公司 | One-pass charge for plain detonator |
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| CN106397074A (en) * | 2016-08-31 | 2017-02-15 | 山西北化关铝化工有限公司 | Initiating explosive for detonator assembly and preparation method thereof |
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| CN104447144B (en) * | 2014-11-22 | 2016-07-06 | 山西北化关铝化工有限公司 | Superhigh temperature petroleum perforation charge plastic bonded explosive and preparation method thereof |
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- 2018-08-21 CN CN201810953617.3A patent/CN109081763A/en active Pending
- 2018-08-21 CN CN202211284074.3A patent/CN115636711A/en active Pending
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