CN105367359A - Emulsion explosive sensibilizing method via self-foaming of resin microspheres - Google Patents
Emulsion explosive sensibilizing method via self-foaming of resin microspheres Download PDFInfo
- Publication number
- CN105367359A CN105367359A CN201510971538.1A CN201510971538A CN105367359A CN 105367359 A CN105367359 A CN 105367359A CN 201510971538 A CN201510971538 A CN 201510971538A CN 105367359 A CN105367359 A CN 105367359A
- Authority
- CN
- China
- Prior art keywords
- foaming
- resin microsphere
- emulsion explosive
- latex
- solvent
- 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
Links
- 239000004005 microsphere Substances 0.000 title claims abstract description 58
- 239000011347 resin Substances 0.000 title claims abstract description 57
- 229920005989 resin Polymers 0.000 title claims abstract description 57
- 238000005187 foaming Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000000839 emulsion Substances 0.000 title claims abstract description 34
- 239000002360 explosive Substances 0.000 title claims abstract description 33
- 239000002904 solvent Substances 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 239000011259 mixed solution Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000004816 latex Substances 0.000 claims description 38
- 229920000126 latex Polymers 0.000 claims description 38
- 150000001875 compounds Chemical class 0.000 claims description 24
- 230000001235 sensitizing effect Effects 0.000 claims description 20
- 206010070834 Sensitisation Diseases 0.000 claims description 16
- 230000008313 sensitization Effects 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 238000007664 blowing Methods 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 239000010721 machine oil Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 2
- 238000010924 continuous production Methods 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 2
- 239000011806 microball Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000103 Expandable microsphere Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- 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
- C06B21/0008—Compounding the ingredient
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/002—Sensitisers or density reducing agents, foam stabilisers, crystal habit modifiers
- C06B23/003—Porous or hollow inert particles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses an emulsion explosive sensibilizing method via self-foaming of resin microspheres, and belongs to the field of emulsion explosive production technologies. The method comprises the steps of mixing, stirring and foaming sensibilization, and has the advantages that the low-temperature foaming resin microspheres are used for sensibilizing emulsion explosive, so that the raw material source is wider; as a solvent is added to be mixed with the resin microspheres before foaming, dust is reduced effectively; the added solvent also can participate in the explosion of the explosive; the mixed liquid of the resin microspheres and the solvent is added into emulsion in a spraying manner with a spraying device, and the mixing is carried out to improve the mixing uniformity of the mixed solution and the emulsion substrate, so that the product quality is improved; as the emulsion substrate being 90 to 100 DEG C is used for foaming the low-temperature resin microspheres directly, resin microsphere foaming and emulsion explosive sensibilization is realized simultaneously; the method is simple; the operation is convenient; the cost is low; the continuous production level is improved; the suitability for industrialized mass production is high.
Description
Technical field
The invention belongs to emulsion explosive production technology field, be specifically related to the method for a kind of resin microsphere from foaming sensitised emulsion explosive.
Background technology
Resin microsphere (microcapsule, expandable microspheres) is a kind of nucleocapsid structure, and shell is thermoplastic acrylic resin base polymer, and kernel is the sphere plastic particle of alkanes gas composition.The general 5-500 μm of diameter, after heating, volume can increase to self tens times by undergoes rapid expansion.At present, the sensitization technique of emulsion explosive mainly contains chemical sensitization, physical sensitization and the composite sensitization by these two kinds of method synthesis application.Chemical sensitization mainly utilizes Sodium Nitrite, weak acid and some additives, utilizes sensitizing agent and latex to react to produce gas to form sensitization, but there is the bad control of foaming, explosive shelf lives short defect.The material that physical sensitization mainly utilizes has hollow glass micro-ball, perlite etc., hollow glass micro-ball adding technology is simple, steady quality, but be used as emulsion explosive sensitizing agent, there are following two shortcomings: (1) cannot foam-in-place, need purchase the glass microsphere after foaming, and supply primarily of the U.S., expensive, source is restricted, and cost is higher; (2) glass microsphere is frangible, has invalid microballoon in adition process; Adopt perlite large as physical sensitization agent own vol, the easy moisture absorption is broken, and transport, storage cost are high, and ultimate compression strength is low, easily under the mechanical effects such as whipping device, suffers breakage, and is powdery, is difficult to realize automatization feed, has dust pollution etc.Resin microsphere is used for the production of emulsion explosive, is the technology of newly employing both at home and abroad in recent years, but is substantially all the microballoon after adopting foaming, there is the problem that dust is large, carry inconvenience, and needs foaming machine first to foam to microballoon.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, provide a kind of resin microsphere from the method for foaming sensitised emulsion explosive.
Object of the present invention is achieved through the following technical solutions: a kind of resin microsphere is from the method for foaming sensitised emulsion explosive, and it comprises the following steps:
S1. mix: low-temp foaming resin microsphere and solvent are mixed, described solvent is machine oil or whiteruss;
S2. stir: mixed low-temp foaming resin microsphere and solvent are added in sensitizing agent feed bin, stirs with the rotating speed of 40-80rad/min, obtain liquid compound;
S3. foaming sensitizing: be that the latex of 90-100 DEG C is transported in process pipe with the speed of 3000-7000kg/h through spiral pump by temperature, compound in step S2 sensitizing agent feed bin is sprayed in the process pipe containing latex through spiral pump metering, conveying, employing spray equipment simultaneously, latex and compound enter in mixing tank through process pipe, utilize latex 90-100 DEG C high temperature directly to foam to carry out sensitization to latex to the resin microsphere in mixed solution, form emulsion explosive.
Further, the blowing temperature of the resin microsphere of low-temp foaming described in step S1 is 80-90 DEG C.
Further, the weight ratio of the resin microsphere of low-temp foaming described in step S1 and solvent is 1:1-2.5.
Further, in mixing tank described in step S3, the weight ratio of compound and latex is 7-10:1000.
The present invention has the following advantages: the present invention has the following advantages: the present invention adopts low-temp foaming resin microsphere to carry out sensitization to emulsion explosive, and the resin microsphere blowing temperature that tradition adopts is 150-200 DEG C, and therefore raw material sources are wider; Carry out the mode foamed after being mixed by the resin microsphere before interpolation solvent and foaming, effectively reduce dust, the solvent simultaneously added can participate in the explosive reaction of explosive; The mixed solution of resin microsphere and solvent joins in latex and have employed spray equipment and add in the mode of spraying by the present invention, improves the homogeneity of mixed solution and emulsion matrix mixing, improves the quality of product; The present invention is directly foamed to low-temperature resins microballoon by the temperature of emulsion matrix 90-100 DEG C, carry out while achieving the sensitization of resin microsphere foaming and emulsion explosive, method is simple, easy to operate, cost is low, and continuous prodution level improves, and is applicable to industrialization scale operation.
Embodiment
Below in conjunction with embodiment, the present invention will be further described, and protection scope of the present invention is not limited to the following stated.
embodiment 1:resin microsphere is from a method for foaming sensitised emulsion explosive, and it comprises the following steps:
S1. mix: low-temp foaming resin microsphere and solvent are mixed, described solvent is machine oil; The blowing temperature of described low-temp foaming resin microsphere is 80-90 DEG C; The weight ratio of described low-temp foaming resin microsphere and solvent is 1:1;
S2. stir: mixed low-temp foaming resin microsphere and solvent are added in sensitizing agent feed bin, stirs with the rotating speed of 40rad/min, obtain liquid compound;
S3. foaming sensitizing: be that the latex of 90 DEG C is transported in process pipe with the speed of 3000kg/h through spiral pump by temperature, compound in step S2 sensitizing agent feed bin is sprayed in the process pipe containing latex through spiral pump metering, conveying, employing spray equipment simultaneously, latex and compound enter in mixing tank through process pipe and enter to utilize latex 95 DEG C of high temperature directly to foam to carry out sensitization to latex to the resin microsphere in mixed solution, form emulsion explosive, in described mixing tank, the weight ratio of compound and latex is 7:1000.
embodiment 2:resin microsphere is from a method for foaming sensitised emulsion explosive, and it comprises the following steps:
S1. mix: low-temp foaming resin microsphere and solvent are mixed, described solvent is whiteruss; The blowing temperature of described low-temp foaming resin microsphere is 80-90 DEG C; The weight ratio of described low-temp foaming resin microsphere and solvent is 1:2.5;
S2. stir: mixed low-temp foaming resin microsphere and solvent are added in sensitizing agent feed bin, stirs with the rotating speed of 80rad/min, obtain liquid compound;
S3. foaming sensitizing: be that the latex of 100 DEG C is transported in process pipe with the speed of 7000kg/h through spiral pump by temperature, compound in step S2 sensitizing agent feed bin is sprayed in the process pipe containing latex through spiral pump metering, conveying, employing spray equipment simultaneously, latex and compound enter in mixing tank through process pipe and enter to utilize latex 100 DEG C of high temperature directly to foam to carry out sensitization to latex to the resin microsphere in mixed solution, form emulsion explosive, in described mixing tank, the weight ratio of compound and latex is 10:1000.
embodiment 3:resin microsphere is from a method for foaming sensitised emulsion explosive, and it comprises the following steps:
S1. mix: low-temp foaming resin microsphere and solvent are mixed, described solvent is machine oil; The blowing temperature of described low-temp foaming resin microsphere is 80-90 DEG C; The weight ratio of described low-temp foaming resin microsphere and solvent is 1:1.5;
S2. stir: mixed low-temp foaming resin microsphere and solvent are added in sensitizing agent feed bin, stirs with the rotating speed of 52rad/min, obtain liquid compound;
S3. foaming sensitizing: be that the latex of 94 DEG C is transported in process pipe with the speed of 4300kg/h through spiral pump by temperature, compound in step S2 sensitizing agent feed bin is sprayed in the process pipe containing latex through spiral pump metering, conveying, employing spray equipment simultaneously, latex and compound enter in mixing tank through process pipe and enter to utilize latex 94 DEG C of high temperature directly to foam to carry out sensitization to latex to the resin microsphere in mixed solution, form emulsion explosive, in described mixing tank, the weight ratio of compound and latex is 8:1000.
embodiment 4:resin microsphere is from a method for foaming sensitised emulsion explosive, and it comprises the following steps:
S1. mix: low-temp foaming resin microsphere and solvent are mixed, described solvent is whiteruss; The blowing temperature of described low-temp foaming resin microsphere is 80-90 DEG C; The weight ratio of described low-temp foaming resin microsphere and solvent is 1:2;
S2. stir: mixed low-temp foaming resin microsphere and solvent are added in sensitizing agent feed bin, stirs with the rotating speed of 68rad/min, obtain liquid compound;
S3. foaming sensitizing: be that the latex of 98 DEG C is transported in process pipe with the speed of 3850kg/h through spiral pump by temperature, compound in step S2 sensitizing agent feed bin is sprayed in the process pipe containing latex through spiral pump metering, conveying, employing spray equipment simultaneously, latex and compound enter in mixing tank through process pipe and enter to utilize latex 98 DEG C of high temperature directly to foam to carry out sensitization to latex to the resin microsphere in mixed solution, form emulsion explosive, in described mixing tank, the weight ratio of compound and latex is 9:1000.
Claims (4)
1. resin microsphere is from a method for foaming sensitised emulsion explosive, and it is characterized in that, it comprises the following steps:
S1. mix: low-temp foaming resin microsphere and solvent are mixed, described solvent is machine oil or whiteruss;
S2. stir: mixed low-temp foaming resin microsphere and solvent are added in sensitizing agent feed bin, stirs with the rotating speed of 40-80rad/min, obtain liquid compound;
S3. foaming sensitizing: be that the latex of 90-100 DEG C is transported in process pipe with the speed of 3000-7000kg/h through spiral pump by temperature, compound in step S2 sensitizing agent feed bin is sprayed in the process pipe containing latex through spiral pump metering, conveying, employing spray equipment simultaneously, latex and compound enter in mixing tank through process pipe, utilize latex 90-100 DEG C high temperature directly to foam to carry out sensitization to latex to the resin microsphere in mixed solution, form emulsion explosive.
2. a kind of resin microsphere as claimed in claim 1 is from the method for foaming sensitised emulsion explosive, and it is characterized in that, the blowing temperature of the resin microsphere of low-temp foaming described in step S1 is 80-90 DEG C.
3. a kind of resin microsphere as claimed in claim 1 is from the method for foaming sensitised emulsion explosive, and it is characterized in that, the weight ratio of the resin microsphere of low-temp foaming described in step S1 and solvent is 1:1-2.5.
4. a kind of resin microsphere as claimed in claim 1 is from the method for foaming sensitised emulsion explosive, and it is characterized in that, in mixing tank described in step S3, the weight ratio of compound and latex is 7-10:1000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971538.1A CN105367359A (en) | 2015-12-22 | 2015-12-22 | Emulsion explosive sensibilizing method via self-foaming of resin microspheres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971538.1A CN105367359A (en) | 2015-12-22 | 2015-12-22 | Emulsion explosive sensibilizing method via self-foaming of resin microspheres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105367359A true CN105367359A (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510971538.1A Pending CN105367359A (en) | 2015-12-22 | 2015-12-22 | Emulsion explosive sensibilizing method via self-foaming of resin microspheres |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105367359A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673943A (en) * | 2017-10-25 | 2018-02-09 | 佛山杰致信息科技有限公司 | A kind of photoface exploision emulsion and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731223A (en) * | 2012-02-27 | 2012-10-17 | 湖北凯龙化工集团股份有限公司 | Method for producing emulsion explosive by using resin microspheres and dedicated emulsion sensitization machine thereof |
| CN102910992A (en) * | 2012-10-24 | 2013-02-06 | 雅化集团三台化工有限公司 | Process for physical sensitization of emulsion explosive by using resin microsphere |
| CN104325593A (en) * | 2014-10-24 | 2015-02-04 | 雅化集团三台化工有限公司 | Device and method for preparing foam resin microspheres for physical sensitization of emulsified explosives |
-
2015
- 2015-12-22 CN CN201510971538.1A patent/CN105367359A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731223A (en) * | 2012-02-27 | 2012-10-17 | 湖北凯龙化工集团股份有限公司 | Method for producing emulsion explosive by using resin microspheres and dedicated emulsion sensitization machine thereof |
| CN102910992A (en) * | 2012-10-24 | 2013-02-06 | 雅化集团三台化工有限公司 | Process for physical sensitization of emulsion explosive by using resin microsphere |
| CN104325593A (en) * | 2014-10-24 | 2015-02-04 | 雅化集团三台化工有限公司 | Device and method for preparing foam resin microspheres for physical sensitization of emulsified explosives |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673943A (en) * | 2017-10-25 | 2018-02-09 | 佛山杰致信息科技有限公司 | A kind of photoface exploision emulsion and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |
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| RJ01 | Rejection of invention patent application after publication |