CN202988754U - Recycling equipment of boron oxide in boron carbide smelting smoke - Google Patents
Recycling equipment of boron oxide in boron carbide smelting smoke Download PDFInfo
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- CN202988754U CN202988754U CN 201220532130 CN201220532130U CN202988754U CN 202988754 U CN202988754 U CN 202988754U CN 201220532130 CN201220532130 CN 201220532130 CN 201220532130 U CN201220532130 U CN 201220532130U CN 202988754 U CN202988754 U CN 202988754U
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- boron
- carbide smelting
- reactor
- smelting smoke
- boron oxide
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Abstract
The utility model relates to recycling equipment of boron oxide in boron carbide smelting smoke. The recycling equipment is characterized by comprising a reactor kettle (1), wherein electric heating and/or steam are taken as a heat source of the reactor kettle (1), an inlet of the reactor kettle (1) is matched with a dust feeding device, an outlet of the reactor kettle is communicated with a pressure filter (2) through a conveying pipe, the lower portion of the pressure filter (2) is provided with a liquid collecting tank (3), the liquid collecting tank (3) is connected with an inlet of a crystallizing tank (4) through a pipeline, the crystallizing tank (4) is provided with a water sleeve (6), and a discharge opening of the crystallizing tank (4) is connected with a centrifugal hydroextractor (5) through a pipeline. The recycling equipment has the advantages that solid dust left in the boron carbide smelting smoke is placed in water and heated so that the boron oxide in the boron carbide smelting smoke is dissolved, then the solution is filtered, and impurities are separated. A boron oxide solution is filtered, the temperature of the boron oxide solution is lowered, the boron oxide solution is crystallized, moisture is removed, and boric acid is obtained. More than 90% of the boron oxide in the dust can be recycled, resource waste and environment pollution are avoided, process steps are simple, manufacture cost of equipment is low, and economic benefits and environmental benefits are remarkably obtained at the same time.
Description
Technical field
The utility model relates to a kind of norbide production unit, i.e. a kind of boron carbide smelting smoke boron cash recovery system.
Background technology
Norbide is a kind of nonmetal infusible compound, with B
4C is staple, is one of superhard manufactured abrasive, and hardness is only second to diamond.And having the characteristics such as the grinding of being suitable for, physico-chemical property is stable, quality is light, nonferromagnetic substance is good, react hardly with soda acid, also have the performance of semiconductive and absorption neutron, is the desirable substitute material of diamond.Boron carbide micro powder and boron carbide product are widely applied to the fields such as aviation, military project, nuclear industry, wear-resisting, refractory materials.At present, the main raw material of producing norbide is boric acid and carbon materials, puts into to smelt in the program control arc refiner of high power three-phase after these raw materials mix to make.In the smelting process of norbide, can produce a large amount of flue dust, our company once adopted the Bag filter method that flue gas is filtered, and the gas of discharging is very little to environmental influence., filter the solid dust stay and can only concentrate stacking, both occupied grounds also can affect the boron cash B that contains 70% left and right in the middle of near the environment, particularly dust the place
2O
3, will become boric acid after suction, be the high quality raw material of producing norbide, also be not recycled at present utilization.According to available data, reclaim the simplest method of boron cash and exactly dust is melted down., also have a large amount of silicon, charcoal impurity in the middle of dust, melt down the effect that rear impact is smelted, reduce quality product, lose more than gain.And to remove impurity in the middle of dust, although existing method is a lot, cost is all higher, can't for the production of.Therefore, the impurity as in how lower cost removal dust extracts high purity boron cash, is the target that those skilled in the art pursue, and is also the difficult problem that the colleague generally acknowledges.
Summary of the invention
The purpose of this utility model is to provide a kind of impurity that can remove in boron carbide smelting smoke, purification boron cash wherein, and cost is low, the equipment of high efficiency.
Above-mentioned purpose is realized by following technical scheme: develop a kind of boron carbide smelting smoke boron cash recovery system, be characterized in: said equipment comprises the reactor take electric heating and/or steam as thermal source, reactor is provided with import and outlet, import matches with the dust loader, outlet is connected with pressure filter by transfer lime, be provided with below pressure filter and connect liquid bath, connecing liquid bath is connected with the entrance of crystallizer by pipeline, crystallizer is provided with water jacket, and the discharge port of crystallizer is connected with centrifuge by pipeline.
Be provided with spiral tube in said crystallizer.
Said crystallizer is provided with one or two.
Be provided with primary filter between said reactor and pressure filter.
The water port of said centrifuge is connected with the import of mother liquor tank by pipeline, and the outlet of mother liquor tank is connected with reactor by pipeline.
The discharge opening of said centrifuge is connected with dryer.
The beneficial effects of the utility model are: can reclaim the contained boron cash more than 90% of boron carbide smelting smoke dust, avoid the wasting of resources and environmental pollution, processing step is simple, and equipment manufacturing cost is cheap, economic benefit and obvious environment benefit doulbe-sides' victory.
Description of drawings
Fig. 1 is the process flow sheet of the first embodiment;
Fig. 2 is the equipment wiring layout of the first embodiment;
Fig. 3 is the parts crystallizer sectional view of the first embodiment;
Fig. 4 is the parts crystallizer sectional view of the second embodiment;
Fig. 5 is the process flow sheet of the third embodiment;
Fig. 6 is the equipment wiring layout of the third embodiment;
Fig. 7 is the process flow sheet of the 4th kind of embodiment.
In figure as seen: reactor 1, pressure filter 2 connects liquid bath 3, crystallizer 4, centrifuge 5, water jacket 6, water-in 7, water outlet 8, spiral tube 9, dryer 10, storage bin 11, mother liquor tank 12.
Embodiment
The first embodiment: technical process as shown in Figure 1 is that dust is added to the water, is heated to more than 95 ℃, and the dissolving of boron cash, solution filter, the filtrate crystallisation by cooling, then through dehydration, can obtain boric acid.
Fig. 2 has introduced the equipment that a cover can be completed above-mentioned technique: the container in order to splendid attire hot water is reactor 1, reactor 1 is take electric heating and/or steam as thermal source, reactor is provided with import and outlet, import matches with the dust loader, outlet is connected with pressure filter 2 by transfer lime, be provided with below pressure filter 2 and connect liquid bath 3, connect liquid bath 3 and be connected by the entrance of pipeline with crystallizer 4.In conjunction with Fig. 3 as seen, the surrounding of crystallizer 4 tank bodies is provided with the water jacket 6 that double-deck wallboard surrounds, water jacket 6 is provided with water-in 7 and water outlet 8, water inlet pipe 7 and rising pipe 8 consist of circulation loop with cold water source, crystallizer 4 is provided with the recirculated water cooling cover, and the discharge port of crystallizer is connected with centrifuge 5 by pipeline.
During work, approximately containing 70% boric anhydride (B
2O
3) the recovery dust drop in reactor 1, add water, amount of water heats by the combination of electrically heated or steam heating or two kinds of thermals source dissolve whole boron cash as lower limit, the water in reactor is heated to more than 95 ℃ boric anhydride (B
2O
3) be dissolved as boric acid solution.And the compound of other compositions such as silicon, graphite is still solid-state, has formed in reactor 1 take boric acid solution as main soluble solids.Soluble solids is passed through primary filter, filtering larger particles impurity, and then enter pressure filter 2 filtrations.Pressure filter 2 can adopt commercially available plate and frame(type)filter press, its body is the container that is surrounded by folding many gauffers filter cloth, after the splendid attire mixing liquid, by compression, liquid is leached, to following liquid bath 3 the insides of connecing, impurity in pressure filter 2 takes out in good time, then the liquid that connects in liquid bath 3 is pumped into crystallizer 4.By solution in the cold water cooling tank, when the pot liquid temperature reaches 30-35 ℃, boric acid can form solid-state crystal, then crystal solution is sent into centrifuge 5 dehydrations, obtains the boric acid of moisture 4%--7% left and right, namely can be used for the production of norbide ingot.
The second embodiment: as shown in Figure 4, crystallizer 4 also is provided with at least one cover spiral tube 9 in tank except water jacket 6 on every side, water-in 7, water outlet 8, and spiral tube 9 two ends access water jackets 6 can certainly pick out separately outside tank body, join with cold water source.During work, spiral tube 9 carries out the cold water circulation together with water jacket 6, and its effect is the heat interchanging area that increases in tank, improves cooling efficient.
The third embodiment: technical process as shown in Figure 5 is also boric anhydride (B
2O
3) account in the recovery dust input water of 70% left and right, heating makes the dissolving of boron cash, then carries out press filtration, and the liquid that leaches carries out twice crystallization, anhydrates in separation, and the wet crystal that obtains is dried, and namely obtains can be used as the boric acid of raw materials for metallurgy.
Complete the equipment of above-mentioned technique as shown in Figure 6: reactor 1 is take electric heating and/or steam as thermal source, reactor is provided with import and outlet, import matches with the dust loader, outlet is connected with pressure filter 2 by transfer lime, be provided with below pressure filter 2 and connect liquid bath 3, connect liquid bath 3 and be connected by the entrance of pipeline with crystallizer 4.Here crystallizer has two.The crystallizer back connects centrifuge 5, and centrifuge 5 is connected with dryer 10 and mother liquor tank 12 by pipeline respectively, and dryer is connected with storage bin 11, and mother liquor tank 12 is connected with reactor 1 by pipeline.
During work, contain 70% boric anhydride (B
2O
3) the recovery dust drop in reactor 1, add water, be heated to more than 95 ℃ boric anhydride (B
2O
3) be dissolved as boric acid solution.And the compound of other compositions such as silicon, graphite is still solid-state, the soluble solids in reactor 1 is entered plate-and-frame filter press 2 after by primary filter again and filters.The filtrate body drop is to following liquid bath 3 the insides of connecing, and the impurity in pressure filter 2 take out in good time, and the liquid that connects in liquid bath 3 pumps into crystallizer 4.Filtrate can enter two crystallizers simultaneously, also can be introduced into first crystallizer 4, then enters second crystallizer by first crystallizer.The former has been equivalent to increase the volume of crystallizer, and the latter has been equivalent to extend the process of crystallization, can select according to circumstances.The pot liquid temperature reaches 30-35 ℃, and boric acid can form solid-state crystal, then crystal solution is sent into centrifuge 5 dehydrations, obtains the boric acid of moisture 4%--7% left and right, namely can be used for the production of norbide ingot.A small amount of boric acid is also contained in the waste water the inside of separating, and can focus on mother liquor tank 12, then is sent in reactor 1 and reuses.Can realize closed cycle completely like this, can think that boric acid has obtained utilizing completely, can also save the part water.
The 4th kind of embodiment: as shown in Figure 7 technical process and precedent are basically identical, add entry and dust in reactor 1, after being heated to 95 ℃, and boric anhydride (B
2O
3) be dissolved as boric acid solution, and the compound of the compositions such as silicon, graphite is still solid-state.Remove macrobead by initial filter again, filter sending into plate-and-frame filter press, discharge impurity, then with filtrate enter crystallizer under 30-35 ℃ through twice crystallisation by cooling, boric acid is crystallized into solid-state.Then enter whizzer 5 dehydrations, obtain the boric acid of moisture 4%--7% left and right, namely can be used as raw material and put in the production of norbide ingot.The liquid that is thrown out of enters underground accumulator tank and squeezes into mother liquor tank with pump, again extracts in order to drop in hydrothermal reaction still 1 next time.Difference has 2 points:
One, the boric acid solution that leaches through pressure filter obtains the acidity index after tested, with reference to boric acid contain the acid concentration standard, insufficient section adds sulfuric acid to supply.
Two, 0.01-0.02% add crystallizing agent by what record in advance boron cash amount, crystallizing agent can adopt refining boron cash molecule, and namely boron cash essence, can make by oneself, also can buy.Crystallizing agent is dispersed in solution through stirring, and becomes the kernel of many crystallizations, impels crystallization to carry out fast.
Experiment showed, that mending acid sees the quality that significantly improves boric acid, add crystallizing agent can make crystallization time shorten 20%, yield improves more than 3%.Second-rate at boric acid, in the situation that crystallization time is grown, can select.
Claims (6)
1. boron carbide smelting smoke boron cash recovery system, it is characterized in that: comprise the reactor (1) take electric heating and/or steam as thermal source, the import of reactor (1) matches with the dust loader, the outlet of reactor is connected with pressure filter (2) by transfer lime, be provided with below pressure filter (2) and connect liquid bath (3), connecing liquid bath (3) is connected by the entrance of pipeline with crystallizer (4), crystallizer (4) is provided with water jacket (6), and the discharge port of crystallizer (4) is connected with centrifuge (5) by pipeline.
2. boron carbide smelting smoke boron cash recovery system according to claim 1, is characterized in that: be provided with spiral tube (9) in said crystallizer (4).
3. boron carbide smelting smoke boron cash recovery system according to claim 1, it is characterized in that: said crystallizer (4) is provided with one or two.
4. boron carbide smelting smoke boron cash recovery system according to claim 1, is characterized in that: be provided with primary filter between said reactor (1) and pressure filter (1).
5. boron carbide smelting smoke boron cash recovery system according to claim 1, it is characterized in that: the water port of said centrifuge (5) is connected by the import of pipeline with mother liquor tank (12), and the outlet of mother liquor tank (12) is connected with reactor (1) by pipeline.
6. boron carbide smelting smoke boron cash recovery system according to claim 1, it is characterized in that: the discharge opening of said centrifuge (5) is connected with dryer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220532130 CN202988754U (en) | 2012-10-18 | 2012-10-18 | Recycling equipment of boron oxide in boron carbide smelting smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220532130 CN202988754U (en) | 2012-10-18 | 2012-10-18 | Recycling equipment of boron oxide in boron carbide smelting smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202988754U true CN202988754U (en) | 2013-06-12 |
Family
ID=48559953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220532130 Expired - Lifetime CN202988754U (en) | 2012-10-18 | 2012-10-18 | Recycling equipment of boron oxide in boron carbide smelting smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202988754U (en) |
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2012
- 2012-10-18 CN CN 201220532130 patent/CN202988754U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 028000 the Inner Mongolia Autonomous Region Tongliao minlen street culture building room 609 Patentee after: JINMA (TONGLIAO) BORON MATERIAL Co.,Ltd. Address before: 028000 the Inner Mongolia Autonomous Region Tongliao economic and Technological Development Zone High Energy Industrial Park Patentee before: RUNMING NEW MATERIAL (TONGLIAO) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200603 Address after: 028021 high energy industrial park, Tongliao Economic and Technological Development Zone, Inner Mongolia Autonomous Region (Jinma (Tongliao) boron material Co., Ltd.) Patentee after: Tongliao Zhongbo New Material Technology Co.,Ltd. Address before: 028000 the Inner Mongolia Autonomous Region Tongliao minlen street culture building room 609 Patentee before: JINMA (TONGLIAO) BORON MATERIAL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |