CN104628495A - Technological method for baking light burned powder for firecracker and firework fixing fuse by virtue of dolomite - Google Patents
Technological method for baking light burned powder for firecracker and firework fixing fuse by virtue of dolomite Download PDFInfo
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- CN104628495A CN104628495A CN201310686441.7A CN201310686441A CN104628495A CN 104628495 A CN104628495 A CN 104628495A CN 201310686441 A CN201310686441 A CN 201310686441A CN 104628495 A CN104628495 A CN 104628495A
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- dolomite
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- firecracker
- rhombspar
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Abstract
The invention discloses a technological method for baking light burned powder for a firecracker and firework fixing fuse by virtue of dolomite. The method comprises the following steps: heating high-quality dolomite blocks from Shangli County, Jiangxi Province and surrounding areas thereof to 600-700 DEG C, preserving heat for 3-5h, cooling the dolomite for 5-8h and discharging the dolomite; uniformly mixing the dolomite which is cooled and lightly burned with anhydrous calcium chloride at a mass ratio of (10-15) to 1, ball-milling an obtained mixture in a ball mill, grinding the mixture into powder with the granularity of 150-200 meshes, sealing and packaging to obtain dolomite light burned powder. The technological method for baking the light burned powder for the firecracker and firework fixing fuse by virtue of the dolomite disclosed by the invention can replace a method for baking light burned powder for a firecracker and firework fixing fuse by virtue of magnesite, so as to realize the effective utilization of local mineral resources; and the method not only can be used for reducing the transportation cost, but also can be used for avoiding the decrease of the activity of magnesium oxide in a transporting process, shortening the fixing-fusing time of firecrackers and fireworks, improving the production efficiency of the firecrackers and fireworks and reducing the production cost.
Description
Technical field
The present invention relates to a kind of preparation method of gelling material, especially relate to a kind of processing method preparing fireworks and firecracker solid flashing composition light burnt powder.
Background technology
Fireworks and firecracker is one of celebrating article of commonly using of people, be no matter celebrate a festival or marriage marriage, enter to learn be transferred and promoted and Balkh completion, shop opening, metropolitan sets off firecracker fireworks to show congratulation.Fireworks manufacture generally will pass through cylinder processed, dress soil, powder charge, cultivation are drawn, seal and admittedly draw, tie the operation such as whip and packaging, wherein seal and admittedly draw operation and refer to and with solid flashing composition the lead-in wire of planting to be fixed and fireworks and firecracker is sealed, no matter this procedure is adopt craft or machinery has come, and the solid flashing composition such as to only have be cured to a certain degree and just can enter next procedure.Shangli County, ten thousand years, Liuyang, Liling are the main fireworks and firecracker major production bases of China, and four ground output account for the whole nation more than 80%.The fireworks and firecracker solid flashing composition that above-mentioned four ground are commonly used at present is mostly adopt the dry powder doses be mixed through ball milling by light burnt powder (content of magnesia more than 70%), magnesium chloride and ingredient powder, wherein light burnt powder cost account for solid flashing composition material cost more than 70%, four ground according to a preliminary estimate at least Year's consumption more than 300,000 tons.Not only consumption is large, but also have following problems: one is that current light burnt powder used all will be transported by Liaoning a long way, although this personal value of light burnt powder is not high, but trucking costs is high, haulage time is long, and loss is large, not only increase solid flashing composition cost, but also likely because traffic problems can cause, there is lack of raw materials, produce interruption, in order to avoid, there is lack of raw materials, enterprise has to is equipped with large-scale raw material silo simultaneously, increases cost of investment; Two is that effect falls in the easy moisture absorption of magnesium oxide in transit, can reduce the result of use of solid flashing composition, affects the quality of fireworks and firecracker due to main containing magnesium oxide in light burnt powder.
Summary of the invention
The object that the present invention will realize is: the dolomite mineral utilizing Shangli County, Jiangxi and surrounding area thereof relatively to enrich high-quality through light-burned and formulated be solid flashing composition light burnt powder, thus replace producing by Liaoning the light burnt powder that magnesite fires.
The processing method that the present invention utilizes rhombspar to fire fireworks and firecracker solid flashing composition light burnt powder comprises the following steps:
A, adopt the dolomite clinker material of Shangli County, Jiangxi and surrounding area high-quality thereof in kiln, to be heated to 600 ~ 700 DEG C of insulations after 3-5 hours, cool obtained light dolomite of coming out of the stove for 5-8 hour;
B, the batching being 10 ~ 15 ︰ 1 in mass ratio by light dolomite and Calcium Chloride Powder Anhydrous put into ball mill uniform stirring ball milling, crush and screen and make 150-200 object rhombspar light burnt powder.
The rhombspar light burnt powder that the present invention utilizes rhombspar to fire fireworks and firecracker solid flashing composition substitutes the fireworks and firecracker solid flashing composition light burnt powder fired by magnesite, take full advantage of local Mineral resources, not only reduce transportation cost, and strange land can be avoided to buy the reduction of light burnt powder MgO activity in transportation, shorten fireworks and firecracker and admittedly draw the time, improve fireworks and firecracker production efficiency, reduce production cost.
Embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, the invention will be further described to introduce embodiment below.
Described rhombspar ore adopts Shangli County, Jiangxi Province and surrounding area (described surrounding area is Shangli County periphery 10 kilometers of areas) thereof, reserves enrich the rhombspar (content of MgO is more than 25%) of high-quality, there is nearly ten, the mine of card exploitation rhombspar in Shangli County and periphery 10 kilometers of areas, annual production reaches more than 2,000,000 tons, and the chemical formula of rhombspar is CaMg (CO
3)
2, the mineral (CaCO be mainly made up of calcium carbonate and magnesiumcarbonate
3with MgCO
3ratio be roughly 1 ︰ 1), containing trace SiO
2.Less than 780 DEG C light-burned thermolysiss are MgO and CaCO
3,cO
2, decompose expression formula as the formula (1):
ＣａＭｇ（ＣＯ
3）
2→ＭｇＯ＋ＣａＣＯ
3＋ＣＯ
2↑
The object of present method is by light dolomite, decomposes MgCO wherein
3for MgO, but suppress the CaCO in rhombspar again
3decompose, so light-burned temperature needs accurately to control.When light roasting temperature to 540 DEG C, MgCO
3start to decompose, during to 780 DEG C, MgCO
3decomposite MgO completely.Because undecomposed CaCO in this light burnt powder
3the result of use not affecting light burnt powder can be used as stopping composition, when temperature rises to 900 degrees Celsius, and the CaCO in rhombspar
3start to decomposite CaO to 1100 DEG C to complete completely, and when the content of the CaO in this light burnt powder is more than 5%, strong active CaO will disturb effect of MgO, so in order to suppress CaCO as much as possible
3resolve into CaO, the temperature of light dolomite to be strict controlled in less than 700 DEG C and proper extension insulation and boiling in a covered pot over a slow fire time to guarantee minimum CaO content, the highest content of MgO and activity, rhombspar is to carry out calcinate crystallization compared with low temperature little, there is larger surface free energy, make oxide compound response capacity comparatively large, namely chemically reactive is higher.Improve calcining temperature, then promote the generation of recrystallization process, crystal becomes large, and result reduces the chemically reactive of oxide compound, and different local rhombspar optimum calcinating temperature there are differences again, and through many experiments, its process of preparing step is as follows:
A, adopt the dolomite clinker material of Shangli County, Jiangxi and surrounding area high-quality thereof in kiln, to be heated to 600 ~ 700 DEG C of insulations after 3-5 hours, cool obtained light dolomite of coming out of the stove for 5-8 hour;
B, the batching being 10 ~ 15 ︰ 1 in mass ratio by light dolomite and Calcium Chloride Powder Anhydrous put into ball mill uniform stirring ball milling, crush and screen and make 150-200 object rhombspar light burnt powder.
The Ji Li that described light dolomite and Calcium Chloride Powder Anhydrous (short solidifying reinforcing agent) make rhombspar light burnt powder for the batching of 10-15 ︰ 1 is in mass ratio: Calcium Chloride Powder Anhydrous is a kind of capable and experienced drying prescription, with the solid flashing composition that rhombspar light burnt powder system of the present invention is joined, halogen essence (gelling material-MgCl conventional in fireworks and firecracker solid flashing composition in use can be absorbed
26H
2the excessive moisture that produces when O) reacting deliquescence also generates a kind of concrement of similar gypsum, thus plays short solidifying and strong effect.Learn through experiment: be that rhombspar light burnt powder prepared by the light dolomite of 10 ~ 15 ︰ 1 and Calcium Chloride Powder Anhydrous can make solid flashing composition reach best condensation effect by quality proportioning.
Embodiment 1
Adopt the dolomite clinker material 500g of the 24mm specification of Shangli County, Jiangxi Province high-quality in experimental electric furnace, be progressively heated to 780 DEG C of insulations to come out of the stove after 3 hours cooling 5 hours; By the rhombspar ball milling through light-burned cooling, be ground into 200 object rhombspar light burnt powders (not adding Calcium Chloride Powder Anhydrous), then according to the collocation method of existing solid flashing composition: according to MgCl
26H
2o: rhombspar light burnt powder: the mass ratio of raw material ground dolomite=1 ︰ 3.5:15 gets MgCl
26H
2rhombspar light burnt powder 350g after O powder 100g, ball mill pulverizing, raw material ground dolomite (below 1mm specification) 1500g mixing is mixed and is all made solid flashing composition, gets this solid flashing composition by normal process for firecracker enclosing.Described raw material rhombspar is rhombspar nugget material becomes less than 1 millimeter powder through mechanical disintegration.
Embodiment 2
The dolomite clinker material 500g of 24mm specification adopting Shangli County, Jiangxi Province to produce high-quality is progressively heated to 580 DEG C of insulations and comes out of the stove after 4 hours cooling 6 hours in experimental electric furnace; By the rhombspar ball milling through light-burned cooling, be ground into 200 object rhombspar light burnt powders (not adding Calcium Chloride Powder Anhydrous), then according to the collocation method of existing solid flashing composition: according to MgCl
26H
2o: rhombspar light burnt powder: the mass ratio of raw material ground dolomite=1:3.5:15 gets MgCl
26H
2rhombspar light burnt powder 350g after O powder 100g, ball mill pulverizing, raw material ground dolomite (below 1mm specification) 1500g mixing is mixed and is all made solid flashing composition, gets this solid flashing composition by normal process for firecracker enclosing.
Embodiment 3
The dolomite clinker material 500g of 24mm specification adopting surrounding area, Shangli County, Jiangxi Province to produce high-quality is progressively heated to 650 DEG C of insulations and comes out of the stove after 5 hours cooling 6.5 hours in experimental electric furnace; Equal ball milling is mixed according to the batching that mass ratio is 10 ︰ 1 by through the rhombspar of light-burned cooling and Calcium Chloride Powder Anhydrous (short solidifying reinforcing agent), be ground into 200 object rhombspar light burnt powders (adding Calcium Chloride Powder Anhydrous), then according to the collocation method of existing solid flashing composition: according to MgCl
26H
2o: rhombspar light burnt powder: the mass ratio of raw material ground dolomite=1 ︰ 3.85:15 gets MgCl
26H
2rhombspar light burnt powder (adding Calcium Chloride Powder Anhydrous) 385g after O powder 100g, ball mill pulverizing, raw material ground dolomite (below 1mm specification) 1500g mixing is mixed and is all made solid flashing composition, gets this solid flashing composition by normal process for firecracker enclosing.
Embodiment 4
The dolomite clinker material 500g of 24mm specification adopting surrounding area, Shangli County, Jiangxi Province to produce high-quality is progressively heated to 700 DEG C of insulations and comes out of the stove after 4 hours cooling 7 hours in experimental electric furnace; Equal ball milling is mixed according to the batching that mass ratio is 13 ︰ 1 by through the rhombspar of light-burned cooling and Calcium Chloride Powder Anhydrous (short solidifying reinforcing agent), be ground into 200 object rhombspar light burnt powders (adding Calcium Chloride Powder Anhydrous), then according to the collocation method of existing solid flashing composition: according to MgCl
26H
2o: rhombspar light burnt powder: the mass ratio of raw material ground dolomite=1 ︰ 3.85 ︰ 15 gets MgCl
26H
2rhombspar light burnt powder (adding Calcium Chloride Powder Anhydrous) 385g after O powder 100g, ball mill pulverizing, raw material ground dolomite (below 1mm specification) 1500g mixing is mixed and is all made solid flashing composition, gets this solid flashing composition by normal process for firecracker enclosing.
Embodiment 5
The dolomite clinker material 500g of 24mm specification adopting surrounding area, Shangli County, Jiangxi Province to produce high-quality is progressively heated to 600 DEG C of insulations and comes out of the stove after 3.5 hours cooling 8 hours in experimental electric furnace; Equal ball milling is mixed according to the batching that mass ratio is 15 ︰ 1 by through the rhombspar of light-burned cooling and Calcium Chloride Powder Anhydrous (short solidifying reinforcing agent), be ground into 200 object rhombspar light burnt powders (adding Calcium Chloride Powder Anhydrous), then according to the collocation method of existing solid flashing composition: according to MgCl
26H
2o: rhombspar light burnt powder: the mass ratio of raw material ground dolomite=1 ︰ 3.85:15 gets MgCl
26H
2rhombspar light burnt powder (adding Calcium Chloride Powder Anhydrous) 385g after O powder 100g, ball mill pulverizing, raw material ground dolomite (below 1mm specification) 1500g mixing is mixed and is all made solid flashing composition, gets this solid flashing composition by normal process for firecracker enclosing.
The examination criteria of above-mentioned five embodiments is with reference to firecracker solid flashing composition national standard GB/T 20212-2006, detects data as shown in following table one:
From table one, data are known:
Solid flashing composition in embodiment 1 does not solidify (solidification not) be because: the content of MgO one, in light burnt powder is low, two, too high, the overlong time of light roasting temperature creates excessive CaO, strong active CaO disturbs effect of MgO;
Solid flashing composition in embodiment 2 is not up to standard be because: one, firing temperature is on the low side, and the content of MgO in light burnt powder is lower, and speed of response is slow, can not reach solidifying requirements at the appointed time;
And solid flashing composition in embodiment 3, embodiment 4 and embodiment 5 up to standard be because: although the content of MgO in light burnt powder is lower, in light burnt powder, add short solidifying reinforcing agent (Calcium Chloride Powder Anhydrous-CaCl
2), the setting time of solid flashing composition is shortened, solidification intensity increase and to solid flashing composition without other detrimental actions.
Claims (1)
1. utilize rhombspar to fire the processing method of fireworks and firecracker solid flashing composition light burnt powder, it is characterized in that: it comprises the following steps:
A, adopt the dolomite clinker material of Shangli County, Jiangxi and surrounding area high-quality thereof in kiln, to be heated to 600 ~ 700 DEG C of insulations after 3-5 hours, cool obtained light dolomite of coming out of the stove for 5-8 hour;
B, the batching being 10 ~ 15 ︰ 1 in mass ratio by light dolomite and Calcium Chloride Powder Anhydrous put into ball mill uniform stirring ball milling, crush and screen and make 150-200 object rhombspar light burnt powder.
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|---|---|---|---|
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|---|---|---|---|
| CN201310686441.7A CN104628495A (en) | 2013-12-17 | 2013-12-17 | Technological method for baking light burned powder for firecracker and firework fixing fuse by virtue of dolomite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759799A (en) * | 2019-11-11 | 2020-02-07 | 湖南南联环资科技有限责任公司 | Process for preparing firework and firecracker filling material by using quartz sand tail mud |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857407A (en) * | 2010-05-29 | 2010-10-13 | 吴家福 | Novel firecracker sealing agent |
| CN103232309A (en) * | 2013-05-03 | 2013-08-07 | 肖本勤 | Rapid hardening firecracker fixed primer |
-
2013
- 2013-12-17 CN CN201310686441.7A patent/CN104628495A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857407A (en) * | 2010-05-29 | 2010-10-13 | 吴家福 | Novel firecracker sealing agent |
| CN103232309A (en) * | 2013-05-03 | 2013-08-07 | 肖本勤 | Rapid hardening firecracker fixed primer |
Non-Patent Citations (2)
| Title |
|---|
| 蒋述兴: "复合型镁质胶凝材料及其应用的研究", 《中国博士学位论文全文数据库（工程科技I辑）》 * |
| 马保国等: "白云石热分解过程及影响因素的研究", 《武汉工业大学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759799A (en) * | 2019-11-11 | 2020-02-07 | 湖南南联环资科技有限责任公司 | Process for preparing firework and firecracker filling material by using quartz sand tail mud |
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Application publication date: 20150520 |