CN210176459U - Tank furnace type sodium sulfide industrial production equipment - Google Patents
Tank furnace type sodium sulfide industrial production equipment Download PDFInfo
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- CN210176459U CN210176459U CN201920561004.5U CN201920561004U CN210176459U CN 210176459 U CN210176459 U CN 210176459U CN 201920561004 U CN201920561004 U CN 201920561004U CN 210176459 U CN210176459 U CN 210176459U
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- tank
- melting
- layer
- melting tank
- furnace
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- 229910052979 sodium sulfide Inorganic materials 0.000 title claims abstract description 37
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000009776 industrial production Methods 0.000 title claims abstract description 23
- 238000002844 melting Methods 0.000 claims abstract description 59
- 230000008018 melting Effects 0.000 claims abstract description 59
- 239000011449 brick Substances 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 230000001172 regenerating effect Effects 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims abstract description 5
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000005338 heat storage Methods 0.000 claims abstract description 3
- 239000000047 product Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 239000011344 liquid material Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 description 4
- 235000011152 sodium sulphate Nutrition 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010446 mirabilite Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000019086 sulfide ion homeostasis Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A tank furnace type sodium sulfide industrial production device comprises a heat accumulating type horseshoe flame tank furnace and/or a unit tank furnace; the heat accumulating type horseshoe flame tank furnace comprises a heat accumulating chamber and a melting tank; the top of the melting tank is provided with a melting part, and one side of the melting tank, which is far away from the regenerative chamber, is provided with a material distribution channel; the bottom surface and the side surface of the melting tank are respectively provided with a pouring layer, a first dry powder impermeable layer, a tank wall brick layer, a second dry powder impermeable layer and an iron plate layer from inside to outside in sequence; the bottom of the heat storage chamber is provided with a flue; the unit tank furnace comprises a melting tank, wherein a melting part is arranged at the top of the melting tank; a charging opening is arranged at the side of the melting tank; a transition flue is arranged on one side far away from the charging opening and is connected with a heat exchange cooling chamber, and the heat exchange cooling chamber is provided with a flue; the bottom surface and the side surface of the melting tank are sequentially provided with a pouring layer, a first dry powder impermeable layer, a tank wall brick layer, a second dry powder impermeable layer and an iron plate layer from inside to outside.
Description
Technical Field
The utility model belongs to the technical field of inorganic chemical industry, especially an environmental protection efficient tank furnace formula sodium sulfide industrial production equipment.
Background
The known industrial production process of sodium sulfide is a production process of a short converter and a long converter, and has the following process and technical problems:
1. the feeding and discharging of the process and the emission of the flue gas and tail gas are all unorganized treatment, and serious environmental pollution and personal health hazard exist.
2. The feeding and discharging of the process are in an intermittent or semi-continuous mode, the productivity is low, and the melting temperature is low, generally about 1100 ℃, taking the currently optimal large-scale long converter as an example; the annual output is only 1 ten thousand tons by adopting manual feeding.
3. The service life of the transfer furnace in the process is extremely short, the furnace is generally internally lined with high-aluminum materials and is quickly corroded by sodium sulfide, and the furnace is generally stopped for maintenance once in about three months.
4. The process has the advantages of low running temperature of the transfer furnace, low product generation rate and low product quality.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing a tank furnace formula sodium sulfide industrial production equipment, its technical innovation that can realize sodium sulfide industrial production improves the single stove productivity greatly, and reduction in production cost reaches green, environmental protection, high efficiency, energy-conserving production requirement.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a tank furnace type sodium sulfide industrial production device comprises a heat accumulating type horseshoe flame tank furnace and/or a unit tank furnace;
the heat accumulating type horseshoe flame tank furnace comprises a heat accumulating chamber and a melting tank; the top of the melting tank is provided with a melting part, and one side of the melting tank, which is far away from the regenerative chamber, is provided with a material distribution channel; the bottom surface and the side surface of the melting tank are respectively provided with a pouring layer, a first dry powder impermeable layer, a tank wall brick layer, a second dry powder impermeable layer and an iron plate layer from inside to outside in sequence; the bottom of the heat storage chamber is provided with a flue;
the unit tank furnace comprises a melting tank, wherein a melting part is arranged at the top of the melting tank; a charging opening is arranged at the side of the melting tank; a transition flue is arranged on one side far away from the charging opening and is connected with a heat exchange cooling chamber, and the heat exchange cooling chamber is provided with a flue; the bottom surface and the side surface of the melting tank are sequentially provided with a pouring layer, a first dry powder impermeable layer, a tank wall brick layer, a second dry powder impermeable layer and an iron plate layer from inside to outside.
Furthermore, the pool wall brick layer comprises a plurality of sequentially built pool wall bricks, and step parts are arranged on both sides of each pool wall brick to enable the cross section of each side edge to be L-shaped; the step parts of two adjacent pool wall bricks are in concave-convex corresponding connection, so that the joint of the two is Z-shaped.
Further, the melting tank is provided with a discharge port, the discharge port is positioned on the side surface of the top of the melting tank, a retaining wall is arranged on the inner side of the discharge port, the discharge port is sealed by the retaining wall in the horizontal direction, and a gap is formed between the bottom of the retaining wall and the bottom surface of the melting tank.
The utility model hasThe beneficial effects are that: the utility model adopts the tank furnace type to produce sodium sulfide, changes the traditional converter mode, realizes the great improvement of productivity, is environment-friendly and efficient, and realizes the innovation of the sodium sulfide industrial production mode; the energy consumption of ton products is reduced, the tank furnace process is efficient, the conversion rate of raw materials and the product quality are improved, the furnace life of the furnace is improved to the greatest extent, the problem of the high-frequency cold repair period of the traditional converter of sodium sulfide is solved, automatic feeding is realized, and the labor intensity of workers is greatly reduced. The kiln flue gas is subjected to heat exchange and cooling by a waste heat boiler, and is discharged after being subjected to dust removal, desulfurization and denitration by a dust removal, desulfurization and denitration system to reach the national emission standard; h released by dissolving sodium sulfide product in dissolving tank2The S gas is neutralized and absorbed by concentrated NaOH solution, so that the nontoxic production is realized, and the environment and the worker health are protected.
Drawings
FIG. 1 is a front view of a heat accumulating type horseshoe flame pool furnace of the pool furnace type sodium sulfide industrial production equipment of the utility model.
Fig. 2 is a top view of the heat accumulating type horseshoe flame pool furnace of the pool furnace type sodium sulfide industrial production equipment.
FIG. 3 is a front view of the unit cell furnace of the cell furnace type sodium sulfide industrial production equipment of the present invention.
FIG. 4 is a top view of the unit cell furnace of the cell furnace type sodium sulfide industrial production equipment of the present invention.
FIG. 5 is a schematic structural view of the side wall of the melting tank of the tank furnace type sodium sulfide industrial production equipment of the present invention.
FIG. 6 is a sectional view of the side wall of the melting tank of the tank furnace type sodium sulfide industrial production facility of the present invention.
FIG. 7 is a sectional view of the melting tank outlet of the tank furnace type sodium sulfide industrial production equipment of the present invention.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1-4, the utility model provides a tank furnace type sodium sulfide industrial production equipment, which comprises a heat accumulating type horse shoe flame tank furnace 1 and/or a unit tank furnace 2.
The regenerative horse shoe flame tank furnace 1 comprises a regenerative chamber 11 and a melting tank 12. The melting tank 12 is provided with a melting part 13 at the top and a distribution material channel 14 at the side far away from the regenerative chamber 11. The bottom of the regenerator 11 is provided with a flue 15. The unit cell furnace 2 includes a melting tank 21, and a melting portion 22 is provided on the top of the melting tank 21. The melting tank 21 is provided with a feed inlet 23 at the side. And a transition flue 24 is arranged on one side far away from the charging opening 23, the transition flue 24 is connected with a heat exchange cooling chamber 25, and the heat exchange cooling chamber 25 is provided with a flue 26.
As shown in fig. 5 and 6, the bottom surfaces and the side surfaces of the melting tanks 12 and 21 of the heat accumulating type horse shoe flame tank furnace 1 and the unit tank furnace 2 are respectively provided with a pouring layer 3, a first dry powder impermeable layer 4, a tank wall brick layer 5, a second dry powder impermeable layer 6 and an iron plate layer 7 from inside to outside in sequence.
The pool wall brick layer 5 comprises a plurality of pool wall bricks 51 which are sequentially built, and both sides of each pool wall brick 51 are provided with step parts, so that the cross section of each side edge is L-shaped. The step parts of two adjacent pool wall bricks 51 are connected in a concave-convex corresponding way, so that the joint of the two is Z-shaped. The liquid material leakage is effectively prevented while the high-temperature resistant molten liquid erosion is realized. Make the handing-over mouth of staggered floor between the pool wall brick, form two turnings in the thickness direction, even there is the liquid material to ooze, along with two turns round, the material temperature reduces, utilizes the very short characteristic of sodium sulfide material mobility, and the liquid material also can automatic solidification.
In addition, as shown in fig. 7, the melting tanks 12, 21 of the heat accumulating type horse shoe flame tank furnace 1 and the unit tank furnace 2 are provided with a discharge port 8, the discharge port 8 is positioned on the top side of the melting tanks 12, 21, a retaining wall 9 is arranged on the inner side of the discharge port 8, the discharge port 8 is closed in the horizontal direction by the retaining wall 9, a gap is arranged between the bottom of the retaining wall and the bottom surface of the melting tank, the retaining wall 9 can retain slag, the clear liquid material enters the retaining wall from the bottom of the retaining wall 9 and then turns up to enter the flow channel through the discharge port, scum is retained outside the retaining wall 9, and the reaction is continued to produce products in the high-temperature tank furnace.
The utility model also provides a tank furnace formula sodium sulfide industrial production technology, including following step:
A. uniformly mixing raw material coal powder and sodium sulfate to prepare a batch;
B. continuously adding the batch into a tank furnace type melting furnace; the tank furnace type melting furnace comprises but is not limited to a regenerative and heat exchange type horse shoe flame tank furnace, a total oxygen type tank furnace or an electric heating type tank furnace;
C. heating the batch in a tank furnace type melting furnace by a spray gun according to a chemical reaction equation: na (Na)2SO4+C＝Na2S+CO2Reacting and melting into liquid sodium sulfide; the melting temperature of the tank furnace type melting furnace is 1100-1300 ℃, and the pressure is 0-10 Pa; the high-temperature tank furnace has wide coverage range of raw materials and good compatibility;
D. continuously discharging the liquid sodium sulfide, and putting the liquid sodium sulfide into a dissolving tank to prepare a sodium sulfide solution;
E. the flue gas is subjected to waste heat recovery and heat exchange and cooling by a waste heat boiler, hot water generated by the boiler is used for tank body and pipeline heat preservation and office heating of a rear-end process, and bathing in a dormitory; then the waste gas is discharged after reaching the standard through a dust removal, desulfurization and denitration system;
F. hydrogen sulfide released by product dissolution is neutralized and absorbed by concentrated NaOH solution, so that nontoxic production is realized, and the toxic gas in a workshop is prevented from being discharged to influence the working environment and the health of workers.
The coal powder is coal powder or semi-coke powder with the granularity of 1-3 mm, the sodium sulfate is industrial byproduct mirabilite or mirabilite of natural salt lake or industrial sodium sulfate, and Na is contained in the sodium sulfate2SO4Not less than 85% and Natrii sulfas granularity not more than 2 mm. The weight ratio of the sodium sulfate to the coal powder is 100: 21 to 22.5. The feeding mode of the tank furnace type melting furnace adopts an inclined blanket type automatic feeding machine or a variable frequency feeding machine, a feeding bin is a closed bin, and a variable frequency dust remover is arranged at a feeding port, so that the surrounding environment of the feeding port is free of dust and is environment-friendly; the discharging mode of the tank furnace type melting furnace is continuous discharging, the danger that the discharging of the traditional converter is easy to explode is eliminated, the production efficiency of products is improved, the initial stage of industrial production is reduced to daily capacity, and the daily capacity can reach 3 ten thousand tons per year.
The beneficial effects of the utility model reside in that:
(1) the utility model changes the traditional converter mode production into the tank furnace mode production, and the materials are in a liquid flowing state in the tank furnace; the furnace body is static, can select to use high-grade refractory material, and the life-span of tank furnace prolongs greatly, increases to life 3 ~ 4 years from the 3 months life-span of traditional converter.
(2) The utility model realizes the continuous production of sodium sulfide with high yield and low energy consumption. The utility model discloses the ejection of compact mode is the continuous ejection of compact, has improved stability, security and the productivity of sodium sulfide production. The capacity of the industrial production test run stage reaches 3 million tons/year, and is expected to reach 10-15 million tons/year along with equipment debugging and defect elimination modification upgrading; compared with the traditional process, the energy consumption of the product per ton is reduced from about 500 kg of standard coal to 200 kg of standard coal at present.
(3) In the tank furnace mode production process, the batch can be in liquid Na2S, the chemical reaction is carried out while the industrial sodium sulfide is floated and moved, the effective conversion rate of raw materials and the product quality are both improved to a great extent, the product quality is higher than 1 type superior product with the highest international grade of the industrial sodium sulfide, and the history that the industrial sodium sulfide industry product lingers in 2 type products or 1 type qualified products for a long time is finished.
(4) The utility model discloses a Na2And S, a green and environment-friendly production mode in the industry.
It should be noted that the above-mentioned embodiments are merely preferred examples of the present invention, which are provided for clearly understanding the principles of the present invention. Many variations and modifications may be made to the above-described embodiments without departing from the principles and scope of the tank furnace structure of the present invention. All such modifications and variations are intended to be included herein within the scope of this disclosure and protected by the following claims.
Claims (3)
1. Tank furnace type sodium sulfide industrial production equipment is characterized by comprising a heat accumulating type horseshoe flame tank furnace and/or a unit tank furnace;
the heat accumulating type horseshoe flame tank furnace comprises a heat accumulating chamber and a melting tank; the top of the melting tank is provided with a melting part, and one side of the melting tank, which is far away from the regenerative chamber, is provided with a material distribution channel; the bottom surface and the side surface of the melting tank are respectively provided with a pouring layer, a first dry powder impermeable layer, a tank wall brick layer, a second dry powder impermeable layer and an iron plate layer from inside to outside in sequence; the bottom of the heat storage chamber is provided with a flue;
the unit tank furnace comprises a melting tank, wherein a melting part is arranged at the top of the melting tank; a charging opening is arranged at the side of the melting tank; a transition flue is arranged on one side far away from the charging opening and is connected with a heat exchange cooling chamber, and the heat exchange cooling chamber is provided with a flue; the bottom surface and the side surface of the melting tank are sequentially provided with a pouring layer, a first dry powder impermeable layer, a tank wall brick layer, a second dry powder impermeable layer and an iron plate layer from inside to outside.
2. The tank furnace type sodium sulfide industrial production equipment according to claim 1, characterized in that: the pool wall brick layer comprises a plurality of sequentially built pool wall bricks, and step parts are arranged on both sides of each pool wall brick to enable the cross section of each side edge to be L-shaped; the step parts of two adjacent pool wall bricks are in concave-convex corresponding connection, so that the joint of the two is Z-shaped.
3. The tank furnace type sodium sulfide industrial production facility according to claim 1 or 2, characterized in that: the melting tank is provided with a discharge port, the discharge port is positioned on the side surface of the top of the melting tank, a retaining wall is arranged on the inner side of the discharge port, the discharge port is closed in the horizontal direction by the retaining wall, and a gap is formed between the bottom of the retaining wall and the bottom surface of the melting tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920561004.5U CN210176459U (en) | 2019-04-23 | 2019-04-23 | Tank furnace type sodium sulfide industrial production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920561004.5U CN210176459U (en) | 2019-04-23 | 2019-04-23 | Tank furnace type sodium sulfide industrial production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210176459U true CN210176459U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920561004.5U Withdrawn - After Issue CN210176459U (en) | 2019-04-23 | 2019-04-23 | Tank furnace type sodium sulfide industrial production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210176459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127628A (en) * | 2019-04-23 | 2019-08-16 | 中国中轻国际工程有限公司 | A kind of tank furnace formula vulcanized sodium industrialized production equipment and technique |
-
2019
- 2019-04-23 CN CN201920561004.5U patent/CN210176459U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127628A (en) * | 2019-04-23 | 2019-08-16 | 中国中轻国际工程有限公司 | A kind of tank furnace formula vulcanized sodium industrialized production equipment and technique |
| CN110127628B (en) * | 2019-04-23 | 2024-02-23 | 中国中轻国际工程有限公司 | Industrial production equipment and process for sodium sulfide in tank furnace |
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