CN100425536C - Low temperature air flow drying broaking receiving method and device special for precipitated barium sulphate - Google Patents
Low temperature air flow drying broaking receiving method and device special for precipitated barium sulphate Download PDFInfo
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- CN100425536C CN100425536C CNB2006100313995A CN200610031399A CN100425536C CN 100425536 C CN100425536 C CN 100425536C CN B2006100313995 A CNB2006100313995 A CN B2006100313995A CN 200610031399 A CN200610031399 A CN 200610031399A CN 100425536 C CN100425536 C CN 100425536C
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- pulverizing
- drying
- process white
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- 238000000034 method Methods 0.000 title claims abstract description 68
- 238000001035 drying Methods 0.000 title claims abstract description 39
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000010298 pulverizing process Methods 0.000 claims description 43
- 239000000047 product Substances 0.000 claims description 26
- 238000005516 engineering process Methods 0.000 claims description 12
- 239000012065 filter cake Substances 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 229910052788 barium Inorganic materials 0.000 claims description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 239000002918 waste heat Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 235000015895 biscuits Nutrition 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The present invention relates to a special low-temperature airflow drying, crushing and classifying method and device for precipitated barium sulfate. The three process steps which are drying, crushing and classifying of the precipitated barium sulfate are collectively taken into account and are collectively accomplished inside a fully enclosed container, and components having the functions of low-temperature airflow drying, crushing and classifying form into a special integral apparatus via organic combination and reasonable arrangement. The integral device is divided into three sections which are a crushing section, a drying section and a classifying section, while the three sections are combined and arranged inside the same enclosed container; the three sections are vertically arranged, and a material inlet for the precipitated barium sulfate is arranged at the binding site of the crushing section and the drying section; the upper part of the classifying section is provided with a discharge port, and after dried at low temperature, crushed and classified, the precipitated barium sulfate is collected by a collector and packaged.
Description
Technical field
The present invention relates to a kind of production unit of process white, mainly be meant a kind of process white process that is used for producing, be used for work in-process process white biscuit (solid content 70%) directly is treated to the integrated specific equipment of the qualified finished product of different grain size (dry powder).
Background technology
Process white is a kind of important basic inorganic salt product of chemical field, two important procedures are all arranged in multiple production method, i.e. drying and pulverizing, the process white slurry that obtains because of different process must pass through solid-liquid separation, obtain filter cake, promptly the process white work in-process have only after super-dry, pulverizing, classification, just can become moisture below 0.3%, fineness 325 orders-3000 purpose powdery finished product.At present, the method for domestic employing is: drying machine → pulverizer → three grades of independent means configurations of grading machine, wherein: the drying machine type selecting is generally: baking bed (getting moisture 0.1-0.8% bulk product)
Drying roller (getting moisture 0.1-0.5% bulk, granulated product)
Paddle dryer (getting moisture 0.1-0.3 bulk, granulated product)
Airflow dryer (getting moisture 0.1% granulated product)
The pulverizer type selecting is generally: omnipotent powder beater (getting the following product of 325 orders)
Raymond machine (getting 325 orders-800 order product)
The grading machine type selecting is generally: outstanding wind powder separating machine (roughly select, select below 325 orders)
Worm gear grading machine (selected, the above classification of 325 orders)
More than Pei Zhi type selecting is invested size, quality product requirement according to each factory, and scale has different configurations, and Fig. 1 is seen in concrete technical process, though be mature technology, has obvious deficiency:
1, existing drying methods of precipitated barium sulphate, pulverizing, classification all are to get up to become a production line by single equipment realization recombinant respectively, do like this, and investment is big, and functions of the equipments repeat serious, and occupation of land is big.
2, energy consumption height, power consumption is big; Industry standard is produced 1 ton of BaSO
4Energy consumption is 0.8 ton of mark coal.
3, poor product quality; Owing to adopt the individual equipment combination, so between equipment and equipment, be difficult to accomplish totally-enclosed, occur tramp material easily and pollute, influence quality product.
4, production cost height.
5, labour intensity is big, all needs man-handling of materials between each operation, also brings product contaminated simultaneously.
Therefore, necessary sulfate precipitate drying, pulverizing, stage equipment and method are improved, reduced investment, energy consumption are low to reach, the purpose of good product quality.
Summary of the invention
The objective of the invention is to deficiency at the characteristics of process white material and existing production technique, equipment, a kind of process white drying, pulverizing, fractionated novel method and device are provided, this method and device can effectively improve the deficiency of existing production technique, equipment, cut down the consumption of energy, improve the quality of products, and taking up an area of for a short time, is a kind of novel process white drying, pulverizing, fractionated method and device.
According to purpose of the present invention, the technology implementation scheme that is proposed is: process white drying, pulverizing, classification three process are concentrated considered, drying methods of precipitated barium sulphate, pulverizing, grading technology synthesized in a totally enclosed container to concentrate finish pulverizing, cryodrying, classification operation, and by the sulfate precipitate barium dust of circulating current drive, through becoming required high-quality process white product after cryodrying and the classification through pulverizing.Device according to its method made is: the parts that will have low temperature air flow drying, pulverizing, grading function make it become the integration apparatus of a special use by organic combination and rational the layout.Whole device is divided into pulverizes section, dryer section, three sections of classification sections, but pulverize section, dryer section, the classification section is that aggregate erection is in the container of same sealing, three sections are vertical and arrange, wherein pulverize section at orlop, in the middle of dryer section is positioned at, the classification section is in the superiors, be provided with the process white material inlet in the pulverizing section with the dryer section joint portion, the process white material is to enter drying by material inlet, pulverize, the hierarchical composition all-in-one, the classification section adopts the classification of worm gear variable frequency control mechanism, top in the classification section is provided with discharge port, through cryodrying, pulverize, process white after the classification is by the collector collecting packing.
The present invention successfully solves original process equipment and takes up an area of the problem big, that energy consumption is high, quality product is unstable, added value is not high and labor strength is big.According to measuring and calculating, by equal industrial scale, the excellent rate of GB 99% is a benchmark, adopts integral machine and former configuration to be compared as follows table 1:
Table 1
Characteristics of the present invention are:
1, adopting clean low temperature hot blast is thermal source (100-200 ℃), has promptly enlarged heat energy source, has avoided high temperature to bring the product burning to influence product quality again, has also reduced the material requirement to equipment, reduces the producing apparatus cost.
2, drying, pulverizing, three kinds of functions of classification are organically combined, eliminate the power repeated configuration, cut down the consumption of energy.
3, worm gear variable frequency control mechanism, effectiveness of classification height are adopted in classification, and scope is wide, qualification rate 100%.
4, process white biscuit and powder are high viscous material, mobile extreme difference, and the present invention has developed special entity in the pulverizing section, has guaranteed totally-enclosed controlled even charging, has developed special broken sticking wall mechanism in dryer section, thereby has guaranteed continuous ordinary production.
5, utilize present device, can obtain inclusion-free and pollute moisture stabilization (0.1-0.2%).No burning solids, fineness 200 orders-3000 purpose high-quality process white product.
Description of drawings
The former drying methods of precipitated barium sulphate of Fig. 1, pulverizing, grading technology schema;
Fig. 2 drying methods of precipitated barium sulphate of the present invention, pulverizing, sorting equipment structural representation.
Among the figure: 1, grading machine; 2, discharge port; 3, classification section; 4, collector; 5, material inlet; 6, pulverizer; 7, guide shell; 8, dryer section; 9, pulverize section.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
From accompanying drawing as can be seen, the present invention is drying methods of precipitated barium sulphate, pulverizing, grading technology and equipment configuration, it is the drying of process white filter cake, pulverizing, grading technology to be synthesized in a totally enclosed container to concentrate finish pulverizing, cryodrying, classification operation, and by the sulfate precipitate barium dust of circulating current drive, through becoming required high-quality process white product after cryodrying and the classification through pulverizing.Concrete technology is: utilize the steam-laden degree under differing temps, pressure, the humidity situation, adopt tail smoke discharging (below 200 ℃) waste heat to carry out totally-enclosed circulating current low temperature drying technology, form totally-enclosed low temperature air flow drying, pulverizing, classification recombining process by totally enclosed pulverizing and the classification of worm gear variable frequency control mechanism again.Whole device is divided into pulverizes 3 three sections of sections 9, dryer section 8, classification section, and pulverizing section 9, dryer section 8, classification section 3 are that aggregate erection is in the container of same sealing, three sections are vertical and arrange, wherein pulverize section 9 at orlop, pulverize section 9 and be provided with the pulverizer 6 that is used to pulverize the process white filter cake; In the middle of dryer section 8 was positioned at, dryer section 8 was by the cold cycle air stream drying, and in order to prevent from that process white from glue wall, in dryer section, be provided with to be used to prevent to glue the guide shell 7 of wall.Guide shell 7 can be cone-shaped or column, can effectively strengthen the speed of circulating current; Classification section 3 is in the superiors, is provided with on the top of classification section to be used for process white fractionated grading machine 1, and grading machine 1 can be a worm gear variable frequency control mechanism grading machine, and classification section 3 adopts the classifications of worm gear variable frequency control mechanism; Be provided with process white material inlet 5 in pulverizing section 9 with dryer section 8 joint portions, the process white material enters drying, pulverizing, hierarchical composition all-in-one by material inlet 5, be provided with discharge port 2 on the top of classification section 3, bring collector 4 collecting packings by the upper part discharge port 2 of classification section 3 into by the cold cycle air-flow through the process white after cryodrying, pulverizing, the classification.
Principle of work of the present invention is: earlier the process white filter cake is dropped in the totally enclosed container by the material inlet of pulverizing section with the dryer section joint portion, the process white filter cake falls on the pulverizer of the pulverizing section in the totally enclosed container, the process white filter cake is after pulverizer is pulverized, the low-temperature airflow that will be entered along totally enclosed container bottom rises and carries out classification and sorting by entering the classification of a worm gear variable frequency control mechanism after the dryer section drying, can determine the fractionated fineness arbitrarily by the parameter of adjusting the worm gear frequency conversion, sorting through grading machine, qualified product will enter collector from the outlet of combined integrated machine along with air-flow, and underproof product will fall on the pulverizer of pulverizing section by the classification section once more through dryer section, pulverize once more by pulverizer, brought to the classification section by air-flow drying section once more and brought into collector by air-flow from the outlet of combined integrated machine via the qualified back of grading machine sorting until being crushed to desired fineness.
Claims (8)
1, process white special low temperature air stream drying, pulverizing, stage division, comprise drying, pulverizing, grading technology, it is characterized in that: drying methods of precipitated barium sulphate, pulverizing, grading technology are synthesized in a totally enclosed container to concentrate finish pulverizing, cryodrying, classification operation, and by the sulfate precipitate barium dust of circulating current drive, through becoming required process white product after cryodrying and the classification through pulverizing.
2, the method for claim 1, it is characterized in that: described method is to adopt tail smoke discharging waste heat to carry out totally-enclosed circulating current low temperature drying technology, forms totally-enclosed low temperature air flow drying, pulverizing, classification recombining process by totally enclosed pulverizing and the classification of worm gear variable frequency control mechanism again.
3, the method of claim 1, it is characterized in that: described method is earlier the process white filter cake to be dropped in the totally enclosed container by the material inlet of pulverizing section with the dryer section joint portion, the process white filter cake falls on the pulverizer of the pulverizing section in the totally enclosed container, the process white filter cake is after pulverizer is pulverized, rise with the low-temperature airflow that enters along totally enclosed container bottom, and carry out classification and sorting by entering the classification of a worm gear variable frequency control mechanism after the dryer section drying, can determine the fractionated fineness arbitrarily by the parameter of adjusting the worm gear frequency conversion, sorting through grading machine, qualified product will enter collector from the outlet of combined integrated machine along with air-flow, and underproof product will fall on the pulverizer of pulverizing section by the classification section once more through dryer section, pulverize once more by pulverizer, brought to the classification section by air-flow drying section once more and brought into collector by air-flow from the outlet of combined integrated machine via the qualified back of grading machine sorting until being crushed to desired fineness.
4, the device of method according to claim 1, comprise and pulverize section, dryer section, three sections of classification sections, it is characterized in that: described pulverizing section, dryer section, the classification section is that aggregate erection is in the container of same sealing, three sections are vertical and arrange, wherein pulverize section at orlop, in the middle of dryer section is positioned at, the classification section is in the superiors, be provided with the process white material inlet in the pulverizing section with the dryer section joint portion, the process white material is to enter drying by material inlet, pulverize, the hierarchical composition all-in-one, top in the classification section is provided with discharge port, through cryodrying, pulverize, process white after the classification is brought the collector collecting packing by the upper part discharge port of classification section into by the cold cycle air-flow.
5, as the device of method as described in the claim 4, it is characterized in that: described pulverizing section is provided with the pulverizer that is used to pulverize the process white filter cake; The top of described classification section is provided with and is used for process white fractionated grading machine.
6, as the device of method as described in the claim 4, it is characterized in that: described dryer section is by the cold cycle air stream drying.
7, as the device of method as described in the claim 5, it is characterized in that: described grading machine is a worm gear variable frequency control mechanism grading machine, and the classification section adopts the classification of worm gear variable frequency control mechanism.
8, as the device of method as described in the claim 4, it is characterized in that: be provided with the guide shell that is used to prevent sticking wall in the described dryer section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100313995A CN100425536C (en) | 2006-03-23 | 2006-03-23 | Low temperature air flow drying broaking receiving method and device special for precipitated barium sulphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100313995A CN100425536C (en) | 2006-03-23 | 2006-03-23 | Low temperature air flow drying broaking receiving method and device special for precipitated barium sulphate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1830798A CN1830798A (en) | 2006-09-13 |
| CN100425536C true CN100425536C (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100313995A Expired - Fee Related CN100425536C (en) | 2006-03-23 | 2006-03-23 | Low temperature air flow drying broaking receiving method and device special for precipitated barium sulphate |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403404A (en) * | 2014-11-18 | 2015-03-11 | 江苏群鑫粉体材料有限公司 | Production technology of special-effect extinction barium sulfate for powder coating |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241854Y (en) * | 1995-04-27 | 1996-12-04 | 中国科学院大连化学物理研究所 | Steam and high-temp. medium compounded heat-insulating plow-in heat distribution pipeline |
| CN1052963C (en) * | 1996-10-30 | 2000-05-31 | 谢三元 | Prodn. tech for barium sulfate |
| CN1377831A (en) * | 2001-04-03 | 2002-11-06 | 黄榕 | Process for preparing super fine deposited barium sulphate |
-
2006
- 2006-03-23 CN CNB2006100313995A patent/CN100425536C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241854Y (en) * | 1995-04-27 | 1996-12-04 | 中国科学院大连化学物理研究所 | Steam and high-temp. medium compounded heat-insulating plow-in heat distribution pipeline |
| CN1052963C (en) * | 1996-10-30 | 2000-05-31 | 谢三元 | Prodn. tech for barium sulfate |
| CN1377831A (en) * | 2001-04-03 | 2002-11-06 | 黄榕 | Process for preparing super fine deposited barium sulphate |
Non-Patent Citations (2)
| Title |
|---|
| 沉淀硫酸钡生产工艺技术改造. 文建章.无机盐工业，第36卷第4期. 2004 |
| 沉淀硫酸钡生产工艺技术改造. 文建章.无机盐工业，第36卷第4期. 2004 * |
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| Publication number | Publication date |
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| CN1830798A (en) | 2006-09-13 |
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