CN105236434A - Production method and production device of sodium orthosilicate - Google Patents
Production method and production device of sodium orthosilicate Download PDFInfo
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- CN105236434A CN105236434A CN201510567034.3A CN201510567034A CN105236434A CN 105236434 A CN105236434 A CN 105236434A CN 201510567034 A CN201510567034 A CN 201510567034A CN 105236434 A CN105236434 A CN 105236434A
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- sodium orthosilicate
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Abstract
The invention belongs to the technical field of sodium silicate production and especially relates to a production method and a production device of sodium orthosilicate. The production method includes the following steps: 1) adding solid sodium hydroxide and silicon micropowder according to the weight ratio of 2.5-3:1 into an electric melting furnace, and increasing the temperature to 400-450 DEG C, stopping heating until the silicon micropowder is reacted completely to obtain a sodium orthosilicate crude product; and 2) cooling the sodium orthosilicate crude product to lower than 60 DEG C to completely solidify the sodium orthosilicate crude product to obtain the sodium orthosilicate. The production device includes the electric melting furnace and a cooling apparatus. The production method is short in process and is low in energy consumption. The production device is simple in structure, is low in investment, is simple in operation and can greatly save labor load and reduce production cost.
Description
Technical field
The invention belongs to water glass production technical field, particularly relate to a kind of sodium orthosilicate production method and production equipment thereof.
Background technology
Water glass, is commonly called as water glass, sodium silicate, and molecular formula is Na
2omSiO
2, wherein m is modulus, i.e. SiO in product
2and Na
2the mol ratio of O, is generally 1 ~ 3.
Sodium orthosilicate, has another name called sodium metasilicate, and molecular formula is 2Na
2oSiO
2, modulus is 0.5; Sodium orthosilicate belongs to inorganic salt product, it is a kind of nontoxic, tasteless, non-harmful white particle, soluble in water, be insoluble to alcohol and acid, the aqueous solution is in alkalescence, alkalescence is stronger than Starso, is placed in air easily moisture absorption deliquescence, has de-sludging, emulsification, dispersion, moistening, perviousness and has surge capability to pH value.
The technique that tradition prepares sodium orthosilicate mainly contains two kinds of methods:
One is solids mixing method, is mixed by Starso with sodium hydroxide, and the product that this production technique is produced is requirement silicon-dioxide and sodium oxide content reaching sodium orthosilicate, and its essence is not the sodium orthosilicate in chemical sense.
One is liquid phase method, it be with quartz sand and liquid caustic soda (30-50%) in a kettle. high-temperature high-voltage reaction obtain liquid sodium silicate, liquid sodium silicate is again through adjustment modulus to 0.5, and solid content 40-60%, obtains sodium orthosilicate after 200-400 DEG C of warm air drying.
The method technical process that tradition prepares sodium orthosilicate is long, and equipment is many, and investment is large, and energy consumption is high.
Summary of the invention
An object of the present invention is: the deficiency existed for prior art, and provide a kind of technique simple, production cost is low, the sodium orthosilicate production method that energy consumption is low.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of sodium orthosilicate production method, described production method comprises the following steps:
(1) solid sodium hydroxide and silicon powder are added in electric smelter according to the ratio of weight ratio 2.5-3:1, heating curve is warming up to 200 DEG C according to 8-10 DEG C/min, then 320-350 DEG C is warming up to according to 4-6 DEG C/min, described solid sodium hydroxide melting is made after heating, continue again to be warming up to 400-450 DEG C according to 4-6 DEG C/min, stop heating, until described silicon powder reacts completely, obtain sodium orthosilicate crude product;
(2) described sodium orthosilicate crude product is cooled to less than 60 DEG C, makes described sodium orthosilicate crude product completion of cure, obtain sodium orthosilicate product.
Improve as one, in step (1), after described solid sodium hydroxide melting, be incubated 30 minutes, then continue to be warming up to 400-450 DEG C according to 4-6 DEG C/min.
Improve as one, in step (1), described silicon powder crosses 1000 mesh sieves.
Improve as one, in step (2), after described sodium orthosilicate crude product completion of cure, through pulverizing, sieving, be prepared into sodium orthosilicate product that is granular or powdery.
Two of object of the present invention is: for aforementioned production method, provides a kind of sodium orthosilicate production equipment.
Described production equipment comprises electric smelter and refrigerating unit, described electric smelter is provided with feeding mouth and discharge port, described refrigerating unit comprises cooling tank, the top of described cooling tank and bottom are respectively equipped with opening for feed and discharge gate, described opening for feed is communicated with the discharge port of described electric smelter, cooling jacket is provided with outside described cooling tank, the upper and lower of described cooling jacket is respectively equipped with water outlet and water-in, stir shaft is provided with in described cooling tank, described stir shaft is provided with multiple paddle, described stir shaft is connected with motor-driven, the top of described cooling tank is located at by described motor.
Improve as one, the feeding mouth of described electric smelter is provided with feeding screw.
Improve as one, be provided with temperature sensor in described cooling tank, the outer wall of described cooling tank is provided with temperature indicator, and described temperature sensor is electrically connected with described temperature indicator.
Improve as one, the discharge gate of described cooling tank is communicated with pulverizer, and described pulverizer is communicated with sieve apparatus.
Owing to have employed technique scheme, the invention has the beneficial effects as follows:
Sodium orthosilicate production method provided by the invention, the sodium hydroxide of molten state has very high reactive behavior, can react with silicon powder rapidly, and its step is simple, adopts intensification to be stage by stage to ensure the abundant melting of sodium hydroxide, and reduces energy consumption; Being incubated 30 minutes is that sodium hydroxide and silicon powder in order to make molten state has larger reactivity, improves speed of response further; Can be processed into meet the granular of production requirement or powdery sodium orthosilicate product by pulverizing, sieving technology.
Sodium orthosilicate production method provided by the invention, its Production Flow Chart is short, and energy consumption is low, sodium orthosilicate production equipment provided by the invention, and its structure is simple, invests little, processing ease, greatly saves manpower, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of sodium orthosilicate production method provided by the invention;
Fig. 2 is the structural representation of the sodium orthosilicate production equipment that embodiment four provides;
Fig. 3 is the longitudinal sectional view of refrigerating unit in Fig. 2;
Fig. 4 is the structural representation of the sodium orthosilicate production equipment that embodiment five provides;
Fig. 5 is the longitudinal sectional view of refrigerating unit in Fig. 4;
Wherein: 1-electric smelter, 2-refrigerating unit, 3-feeding screw, 4-temperature sensor, 5-temperature indicator, 6-pulverizer, 7-sieve apparatus, 11-feeding mouth, 12-discharge port, 21-cooling tank, 22-cooling jacket, 23-stir shaft, 24-paddle, 25-motor, 211-opening for feed, 212-discharge gate, 221-water outlet, 222-water-in.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
A kind of sodium orthosilicate production method, described production method comprises the following steps:
(1) solid sodium hydroxide and silicon powder are added in electric smelter according to the ratio of weight ratio 2.5:1, heating curve is warming up to 200 DEG C according to 8-10 DEG C/min, then 320 DEG C are warming up to according to 4-6 DEG C/min, solid sodium hydroxide melting is made after heating, continue again to be warming up to 400 DEG C according to 4-6 DEG C/min, stop heating, until silicon powder reacts completely, obtain sodium orthosilicate crude product;
(2) sodium orthosilicate crude product is cooled to less than 60 DEG C, makes sodium orthosilicate crude product completion of cure, obtain sodium orthosilicate product.
Embodiment two
A kind of sodium orthosilicate production method, described production method comprises the following steps:
(1) solid sodium hydroxide and the silicon powder crossing 1000 mesh sieves are added in electric smelter according to the ratio of weight ratio 2.7:1, heating curve is warming up to 200 DEG C according to 8-10 DEG C/min, then 330 DEG C are warming up to according to 4-6 DEG C/min, solid sodium hydroxide melting is made after heating, be incubated 30 minutes, then continue to be warming up to 430 DEG C according to 4-6 DEG C/min, stop heating, until silicon powder reacts completely, obtain sodium orthosilicate crude product;
(2) sodium orthosilicate crude product is cooled to less than 60 DEG C, makes sodium orthosilicate crude product completion of cure, through pulverizing, sieving, be prepared into sodium orthosilicate product that is granular or powdery.
Embodiment three
A kind of sodium orthosilicate production method, described production method comprises the following steps:
(1) solid sodium hydroxide and the silicon powder crossing 1000 mesh sieves are added in electric smelter according to the ratio of weight ratio 3:1, heating curve is warming up to 200 DEG C according to 8-10 DEG C/min, then 350 DEG C are warming up to according to 4-6 DEG C/min, solid sodium hydroxide melting is made after heating, be incubated 30 minutes, then continue to be warming up to 450 DEG C according to 4-6 DEG C/min, stop heating, until silicon powder reacts completely, obtain sodium orthosilicate crude product;
(2) sodium orthosilicate crude product is cooled to less than 60 DEG C, makes sodium orthosilicate crude product completion of cure, through pulverizing, sieving, be prepared into sodium orthosilicate product that is granular or powdery.
Traditional technology and cost of investment of the present invention and energy consumption comparison see the following form:
Embodiment four
Fig. 2 shows the structural representation of the sodium orthosilicate production equipment that the present embodiment provides, and for convenience of explanation, this figure only provides the structure division relevant with the present invention.
As shown in Figure 2, a kind of sodium orthosilicate production equipment, comprise electric smelter 1 and refrigerating unit 2, electric smelter 1 is provided with feeding mouth 11 and discharge port 12, as shown in Figure 3, refrigerating unit 2 comprises cooling tank 21, the top of cooling tank 21 and bottom are respectively equipped with opening for feed 211 and discharge gate 212, opening for feed 211 is communicated with the discharge port 12 of electric smelter 1, cooling jacket 22 is provided with outside cooling tank 21, the upper and lower of cooling jacket 22 is respectively equipped with water outlet 221 and water-in 222, stir shaft 23 is provided with in cooling tank 21, stir shaft 23 is provided with multiple paddle 24, stir shaft 23 and motor 25 are in transmission connection, the top of cooling tank 21 is located at by motor 25.
Embodiment five
Fig. 4 shows the structural representation of the sodium orthosilicate production equipment that the present embodiment provides, and for convenience of explanation, this figure only provides the structure division relevant with the present invention.
The structure of the sodium orthosilicate production equipment in the present embodiment is substantially identical with the structure in embodiment four, and its difference is:
As shown in Figure 4, the feeding mouth 11 of electric smelter 1 is provided with feeding screw 3, as shown in Figure 5, temperature sensor 4 is provided with in cooling tank 21, the outer wall of cooling tank 21 is provided with temperature indicator 5, and temperature sensor 4 is electrically connected with temperature indicator 5, as shown in Figure 4, the discharge gate 212 of cooling tank 21 is communicated with pulverizer 6, and pulverizer 6 is communicated with sieve apparatus 7.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a sodium orthosilicate production method, is characterized in that, described production method comprises the following steps:
(1) solid sodium hydroxide and silicon powder are added in electric smelter according to the ratio of weight ratio 2.5-3:1, heating curve is warming up to 200 DEG C according to 8-10 DEG C/min, then 320-350 DEG C is warming up to according to 4-6 DEG C/min, described solid sodium hydroxide melting is made after heating, continue again to be warming up to 400-450 DEG C according to 4-6 DEG C/min, stop heating, until described silicon powder reacts completely, obtain sodium orthosilicate crude product;
(2) described sodium orthosilicate crude product is cooled to less than 60 DEG C, makes described sodium orthosilicate crude product completion of cure, obtain sodium orthosilicate product.
2. sodium orthosilicate production method as claimed in claim 1, is characterized in that, in step (1), after described solid sodium hydroxide melting, be incubated 30 minutes, then continue to be warming up to 400-450 DEG C according to 4-6 DEG C/min.
3. sodium orthosilicate production method as claimed in claim 1, it is characterized in that, in step (1), described silicon powder crosses 1000 mesh sieves.
4. sodium orthosilicate production method as claimed in claim 1, is characterized in that, in step (2), after described sodium orthosilicate crude product completion of cure, through pulverizing, sieving, is prepared into sodium orthosilicate product that is granular or powdery.
5. a sodium orthosilicate production equipment, it is characterized in that, described production equipment comprises electric smelter and refrigerating unit, described electric smelter is provided with feeding mouth and discharge port, described refrigerating unit comprises cooling tank, the top of described cooling tank and bottom are respectively equipped with opening for feed and discharge gate, described opening for feed is communicated with the discharge port of described electric smelter, cooling jacket is provided with outside described cooling tank, the upper and lower of described cooling jacket is respectively equipped with water outlet and water-in, be provided with stir shaft in described cooling tank, described stir shaft is provided with multiple paddle.
6. sodium orthosilicate production equipment as claimed in claim 5, it is characterized in that, the feeding mouth of described electric smelter is provided with feeding screw.
7. sodium orthosilicate production equipment as claimed in claim 5, it is characterized in that, be provided with temperature sensor in described cooling tank, the outer wall of described cooling tank is provided with temperature indicator, and described temperature sensor is electrically connected with described temperature indicator.
8. sodium orthosilicate production equipment as claimed in claim 5, it is characterized in that, the discharge gate of described cooling tank is communicated with pulverizer, and described pulverizer is communicated with sieve apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510567034.3A CN105236434A (en) | 2015-09-08 | 2015-09-08 | Production method and production device of sodium orthosilicate |
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|---|---|---|---|
| CN201510567034.3A CN105236434A (en) | 2015-09-08 | 2015-09-08 | Production method and production device of sodium orthosilicate |
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| CN201510567034.3A Pending CN105236434A (en) | 2015-09-08 | 2015-09-08 | Production method and production device of sodium orthosilicate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090250A (en) * | 2017-05-24 | 2017-08-25 | 安徽龙泉硅材料有限公司 | A kind of method for preparing industrial metasilicate adhesive |
| CN107215878A (en) * | 2017-05-24 | 2017-09-29 | 安徽龙泉硅材料有限公司 | The production technology of high-quality industrial metasilicate |
| CN111233431A (en) * | 2020-03-14 | 2020-06-05 | 格兰天净(北京)科技有限公司 | High-expansion fire-retardant module and preparation method thereof |
| CN112939000A (en) * | 2021-03-19 | 2021-06-11 | 高安市环瓷达釉料有限公司 | Granular sodium orthosilicate production equipment with material conveying control mechanism |
| CN114380298A (en) * | 2022-01-17 | 2022-04-22 | 江西益高化工实业发展有限公司 | Sodium orthosilicate production method and production device thereof |
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|---|---|---|---|---|
| US2219646A (en) * | 1939-03-18 | 1940-10-29 | Michigan Alkali Company | Sodium orthosilicate and method of making same |
| CN1046508A (en) * | 1990-04-09 | 1990-10-31 | 梁兴庞 | The method of producing sodium silicate using electric smelting kiln |
| CN1110251A (en) * | 1994-04-16 | 1995-10-18 | 昌乐县泡花碱厂 | Sodium silicate broken material forming technology |
| CN1342603A (en) * | 2001-10-29 | 2002-04-03 | 江苏德邦化学工业集团有限公司 | Process for preparing sodium silicate |
| CN203501855U (en) * | 2013-06-06 | 2014-03-26 | 苏州市金翔钛设备有限公司 | Multifunctional cooling tank |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2219646A (en) * | 1939-03-18 | 1940-10-29 | Michigan Alkali Company | Sodium orthosilicate and method of making same |
| CN1046508A (en) * | 1990-04-09 | 1990-10-31 | 梁兴庞 | The method of producing sodium silicate using electric smelting kiln |
| CN1110251A (en) * | 1994-04-16 | 1995-10-18 | 昌乐县泡花碱厂 | Sodium silicate broken material forming technology |
| CN1342603A (en) * | 2001-10-29 | 2002-04-03 | 江苏德邦化学工业集团有限公司 | Process for preparing sodium silicate |
| CN203501855U (en) * | 2013-06-06 | 2014-03-26 | 苏州市金翔钛设备有限公司 | Multifunctional cooling tank |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090250A (en) * | 2017-05-24 | 2017-08-25 | 安徽龙泉硅材料有限公司 | A kind of method for preparing industrial metasilicate adhesive |
| CN107215878A (en) * | 2017-05-24 | 2017-09-29 | 安徽龙泉硅材料有限公司 | The production technology of high-quality industrial metasilicate |
| CN111233431A (en) * | 2020-03-14 | 2020-06-05 | 格兰天净(北京)科技有限公司 | High-expansion fire-retardant module and preparation method thereof |
| CN112939000A (en) * | 2021-03-19 | 2021-06-11 | 高安市环瓷达釉料有限公司 | Granular sodium orthosilicate production equipment with material conveying control mechanism |
| CN114380298A (en) * | 2022-01-17 | 2022-04-22 | 江西益高化工实业发展有限公司 | Sodium orthosilicate production method and production device thereof |
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Application publication date: 20160113 |