CN201209123Y - Dry method aluminun fluoride production apparatus - Google Patents
Dry method aluminun fluoride production apparatus Download PDFInfo
- Publication number
- CN201209123Y CN201209123Y CNU2008200700352U CN200820070035U CN201209123Y CN 201209123 Y CN201209123 Y CN 201209123Y CN U2008200700352 U CNU2008200700352 U CN U2008200700352U CN 200820070035 U CN200820070035 U CN 200820070035U CN 201209123 Y CN201209123 Y CN 201209123Y
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- sieve plate
- aluminum fluoride
- aluminium hydroxide
- fluidized
- production equipment
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model relates to an aluminum fluoride production device by a dry method, which comprises a fluidized bed, the bottom part of the fluidized bed is connected with a hydrogen fluoride preparation purifying system, an aluminium hydroxide drying device is connected at the upper part of the fluidized bed, the fluidized bed is a double-layer fluidized bed, and comprises an upper layer sieve plate and a lower layer sieve plate, and air inlet holes are respectively arranged on the upper layer sieve plate and the lower layer sieve plate, air inlet pipes are arranged on the air inlet holes of the upper layer sieve plate and the lower layer sieve plate, and blast caps provided with spray holes are arranged at the top ends of the air inlet pipes; the aluminium hydroxide drying device ensures that the aluminium hydroxide delivered into the fluidized bed is fully dried, the drying speed of the aluminium hydroxide is quickened, the hydrogen fluoride preparation purifying system provides hydrogen fluoride with good purifying effect, since the double-layer fluidized bed is provided with the blast caps, the degree of fluidized reaction is enhanced, the hydrogen fluoride sufficiently reacts with the aluminium hydroxide, the structural design of all the equipment is reasonable, the single-line yearly output of the aluminium fluoride is improved by comprehensive application, the produced single-line yearly output of the aluminium fluoride can reach 40,000 tons, and the pollution to the environment is greatly reduced.
Description
Technical field
The utility model belongs to chemical technology field, relates to a kind of aluminum fluoride production equipment, relates in particular to a kind of aluminum fluoride by dry process production equipment that improves the single line annual production.
Background technology
The production technique of present aluminum fluoride by dry process is comparative maturity, but the single-step annual production of aluminum fluoride by dry process production line is 3.5 ten thousand tons to the maximum, still not ideal enough, this has inseparable relation with the production equipment of aluminum fluoride, part component devices in the aluminum fluoride production equipment has limited the raising of aluminum fluoride output, mainly contain the reason of the following aspects by analysis: 1, the technology of aluminum fluoride by dry process is that hydrogen fluoride gas and aluminium hydroxide react, the abundant degree of reaction has direct relation to output, the reaction unit that uses is a two-stage fluidized at present, the fixing closed conduct of perforate on the air inlet port of lower floor's sieve plate only, the effect of serving as blast cap, the sieve plate on upper strata is the sieve plate of direct perforate, but mainly there is the defective of fluid effect difference in this fluidized-bed, in the fluidized reaction process, there is the fluidisation dead angle, the phenomenon of gathering materials is arranged, especially more serious at sieve plate edge and feed opening, cause sieve plate to stop up easily, cause fluidized-bed under the situation of long-time running, effectively the fluidisation area is fewer and feweri, directly influences single-step annual production; 2, in the fluidized-bed solid, the solid/liquid/gas reactions thing will contact fully and mixing is reacted, therefore the degree of drying of sending into aluminium hydroxide in the fluidized-bed also influences the effect of reaction, the drying effect of currently used aluminium hydroxide drying installation is not ideal enough, rate of drying is slower, make aluminium hydroxide and hydrofluoric fluid effect in the fluidized-bed influenced, and then can influence the single line annual production of aluminum fluoride; 3, the decontamination effect improving of the hydrogen fluoride gas of participation reaction also can exert an influence to reaction effect, adopt the tilting airway in the present aluminium hydroxide refining plant, directly influence purification effects, also cause line clogging easily, the raising of aluminum fluoride single line annual production is caused obstacle; When 4, the gypsum of reaction in the kiln handled a large amount of gypsum dust from flying severe contaminations surrounding enviroment, threaten the healthy of staff, the steady and continuous that influence is produced.
The utility model content
The purpose of this utility model is to provide a kind of aluminum fluoride by dry process production equipment that improves the single line annual production.
For achieving the above object, the utility model is by the following technical solutions: a kind of aluminum fluoride by dry process production equipment, comprise fluidized-bed, the bottom of fluidized-bed prepares purification system with hydrogen fluoride and is connected, and fluidized-bed top is connected with the aluminium hydroxide drying installation, and described fluidized-bed is a two-stage fluidized, comprise two-layer sieve plate up and down, all offer air inlet port on the two-layer up and down sieve plate, be provided with inlet pipe on the air inlet port of upper strata sieve plate and lower floor's sieve plate, the top of inlet pipe is provided with the blast cap of offering jet hole.
The discharge port of described two-stage fluidized is connected with the aluminum fluoride water cooler, and two-stage fluidized also is connected with cyclone, and cyclone is connected with device for absorbing tail gas.
Described aluminium hydroxide drying installation comprises box for feeding odd and warm air drying pipe, the discharge port of box for feeding odd is connected with feed mechanism, the discharge port of feed mechanism is positioned at the warm air drying pipe, one end of warm air drying pipe is connected with hot air generator, the other end is connected with cyclonic separator, the air outlet of cyclonic separator is connected with the waste heat pipe that is back to hot air generator, draw time case pipeline that is connected with box for feeding odd on the waste heat pipe, the pipeline that is back to waste heat pipe or hot air generator is drawn at the top of box for feeding odd.
Described feed mechanism is a feed screw, and described hot air generator is the mixing section that is connected with the combustion chamber.
Described hydrogen fluoride prepares purification system and comprises reaction kiln and preliminary cleaning tower, the reaction kiln is connected by gas operated device with the preliminary cleaning tower, described gas operated device comprises intake ducting, outlet pipe and sulfuric acid transfer lime, curved leading to of intake ducting and outlet pipe connects, the sulfuric acid transfer lime feeds in the intake ducting, and the end that the sulfuric acid transfer lime feeds in the intake ducting is positioned at intake ducting and below, the curved logical junction of outlet pipe.
The end that described sulfuric acid transfer lime feeds in the intake ducting is provided with shower nozzle.
Described reaction kiln is connected with dreg removing system, and this dreg removing system comprises in gypsum deslagging spiral, the gypsum and spiral and chapelet, and the output terminal of described chapelet is provided with the gypsum conveyor screw, and the output terminal of gypsum conveyor screw is provided with the gypsum shaped device.
Described gypsum shaped device is a dribbling balling machine.
Has exhaust vent on the described dribbling balling machine, exhaust vent is connected with the absorption blower fan by pipeline device separated from the gas successively, absorption tower, the water outlet on absorption tower is provided with settling bowl, settling bowl is connected by the inlet channel of pipeline with a lift pump, and the lift pump outlet conduit is connected with the water inlet pipe on absorption tower.
The single line annual production of adopting the utility model can improve aluminum fluoride greatly, on the double-deck sieve plate of two-stage fluidized blast cap is set, can multi-direction air intake, eliminated the fluidisation dead angle, the fluidisation area has increased by 1/4, has strengthened fluid effect greatly, makes all particles be in abundant contact condition, make hydrogen fluoride and aluminium hydroxide sufficient reacting thorough, improved the output of aluminum fluoride.
The aluminium hydroxide drying installation is with the different of prior art: tell time case pipeline that connects the aluminium hydroxide box for feeding odd from the waste heat pipe, the pipeline that is back to waste heat pipe or hot air generator is drawn at the box for feeding odd top; Thereby increasing back the case pipeline has increased the aluminium hydroxide in the box for feeding odd has been carried out pre-dried process, alleviate the aluminium hydroxide material so greatly and entered follow-up exsiccant pressure in the warm air drying pipe, substantially can not cause the obstruction of mixing section accumulation and combustion chamber, also can keep the unimpeded of feed screw hopper, guaranteed good drying effect, and then the aluminium hydroxide that guarantees to send in the fluidized-bed is fully dry, fluid effect is good, also accelerate simultaneously the rate of drying of aluminium hydroxide, increased the dry amount of aluminium hydroxide in the unit time.
Hydrogen fluoride prepares purification system; intake ducting is connected with the reaction kiln of preparation hydrogen fluoride gas; outlet pipe is connected with the preliminary cleaning tower; sulfuric acid evenly sprays downwards through shower nozzle; increase greatly with the contact area of the hydrogen fluoride gas that rises; sulfuric acid increases greatly to the washing function of hydrogen fluoride gas; the dust granules that carries in the hydrogen fluoride gas is eliminated totally substantially; entrained sulfur trioxide gas is absorbed; after purification, impurity particle is thoroughly removed through the preliminary cleaning tower; guarantee to participate in the hydrogen fluoride that reacts and do not contain impurity particle; for reaction provides high-quality reactant; and can not cause the obstruction of gas operated device and preliminary cleaning tower, guarantee to produce continuously; stability.
The dreg removing system that the reaction kiln connects becomes the gypsum of original dry powder into the blocky wet gypsum of ball, stopped the gypsum dust from flying, the dust that dribbling balling machine is distributed on gas separator and absorption tower, steam and acid gas are handled the back emptying, avoided dust, acid gas to the pollution of environment with to the threat of staff health, improved operator's Working environment, reduced labour intensity, production stability improves greatly, form the water route circulation between absorption tower, settling bowl and the lift pump, can make full use of the energy and water resources.
Equipment complex of the present utility model improves the output that has improved aluminum fluoride greatly, the aluminium hydroxide drying installation guarantees to send into the aluminium hydroxide thorough drying in the fluidized-bed, and accelerated the rate of drying of aluminium hydroxide, hydrogen fluoride prepares the hydrogen fluoride that purification system provides good purification, high standard is provided, high-quality hydrogen fluoride, for the fluid effect of obtaining has been done sufficient preparation, two-stage fluidized is provided with blast cap, strengthened the fluidized reaction degree, make hydrogen fluoride and aluminium hydroxide sufficient reacting thorough, the reasonable in design of each equipment, integrated application improves the single line annual production of aluminum fluoride, can make the single line annual production of aluminum fluoride production reach 40,000 tons, and significantly reduce pollution environment.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of fluidized-bed;
Fig. 3 is the structural representation of blast cap;
Fig. 4 is the structural representation of aluminium hydroxide drying installation;
Fig. 5 prepares the structural representation of purification system for hydrogen fluoride;
Fig. 6 is the structural representation of dreg removing system.
Embodiment
As Fig. 1, Fig. 2 and aluminum fluoride by dry process production equipment shown in Figure 3, aluminium hydroxide drying installation 2 is connected with the top of two-stage fluidized 1, hydrogen fluoride prepares purification system 3 and is connected with the bottom of two-stage fluidized 1, the discharge port of two-stage fluidized 1 is connected with aluminum fluoride water cooler 4, two-stage fluidized 1 also is connected with cyclone 5, cyclone 5 is connected with device for absorbing tail gas 6, and the solid discharge port of cyclone 5 is connected with two-stage fluidized 1; Two-stage fluidized 1 comprises upper strata sieve plate 7 and lower floor's sieve plate 8, all has staggered air inlet port 11 on upper strata sieve plate 7 and the lower floor's sieve plate 8, and inlet pipe 10 is set on the air inlet port 11, and the top of inlet pipe 10 is provided with the blast cap 9 of offering jet hole 12.
During use, aluminium hydroxide drying installation 2 is sent into the aluminium hydroxide of thorough drying in the two-stage fluidized 1, hydrogen fluoride prepares purification system 3 hydrogen fluoride gas that purifies is fed in the two-stage fluidized 1, the abundant fluidized reaction of hydrogen fluoride gas and aluminium hydroxide generates aluminum fluoride, and aluminum fluoride is sent into stockyard and packed after discharge port is delivered to aluminum fluoride water cooler 4 internal cooling; The tail gas of two-stage fluidized 1 is handled through cyclone 5, and solid part returns and continues reaction in the two-stage fluidized 1, and gas is partly sent into and handled the back discharging in the device for absorbing tail gas 6.
Aluminium hydroxide drying installation 2 as shown in Figure 4, comprise box for feeding odd 41 and warm air drying pipe 44, the discharge port of box for feeding odd 41 is connected with feed screw 42, the discharge port of feed screw 42 is positioned at warm air drying pipe 44, the lower end of warm air drying pipe 44 connects with the mixing section 43 that is connected combustion chamber 45, the upper end of warm air drying pipe 44 links to each other with cyclonic separator 46, the air outlet of cyclonic separator 46 is connected with the waste heat pipe 47 that is back to mixing section 43, draw time case pipeline 49 that connects box for feeding odd 41 on the waste heat pipe 47, the pipeline 48 that is back to waste heat pipe 47 is drawn at the top of box for feeding odd 41, and arrow is the warm air throughput direction among the figure.Wet hydrogen aluminum oxide in the box for feeding odd 41 is in feed screw 42 is delivered to warm air drying pipe 44, then with combustion chamber 45 interior reverse contacts of warm air that produce with wet hydrogen aluminum oxide drying, by the aluminium hydroxide of thorough drying along with hot gas flow rises, separate through cyclonic separator 46 then, dried aluminium hydroxide is sent into two-stage fluidized 1 and is participated in reaction after separating, warm air in the cyclonic separator 46 is sent in the waste heat pipe 47, portion of hot air in the waste heat pipe 47 enters in the box for feeding odd 41 through time case pipeline 49 aluminium hydroxide is carried out drying, another part warm air is got back to the aluminium hydroxide drying that mixing section 43 participates in next round, send into warm air in the box for feeding odd 41 with the aluminium hydroxide drying after pipeline 48 is back to waste heat pipe 47, carry out so repeatedly, carry out predrying to the aluminium hydroxide in the box for feeding odd 41 earlier, utilize heat fully, guaranteed good drying effect.
Hydrogen fluoride as shown in Figure 5 prepares purification system 3, comprise reaction kiln 51 and gas operated device 52, gas operated device 52 comprises intake ducting 56, outlet pipe 53 and sulfuric acid transfer lime 54, intake ducting 56 connect with 53 curved leading to of outlet pipe, sulfuric acid transfer lime 54 feeds in the intake ducting 56, and the end that sulfuric acid transfer lime 54 feeds in the intake ducting 56 is positioned at intake ducting 56 and below, outlet pipe 53 curved logical junction, the end that sulfuric acid transfer lime 54 feeds in the intake ducting 56 is equipped with shower nozzle 55, intake ducting 56 is connected with the reaction kiln 51 of preparation hydrogen fluoride gas, outlet pipe 53 is connected with preliminary cleaning tower 57, and reaction kiln 51 also is connected with dreg removing system 58; Hydrogen fluoride gas flows into vertical intake ducting 56 after coming out from bottom to top and fully contacts with the sulfuric acid of spray is reverse from reaction kiln 51, enters preliminary cleaning tower 57 through outlet pipe 53 then and carries out purifying treatment, sends into two-stage fluidized 1 after the purifying treatment and participates in reaction.
Aluminium hydroxide drying installation 2 and hydrogen fluoride prepare purification system 3 provides the aluminium hydroxide of thorough drying and the hydrogen fluoride gas of purification, two-stage fluidized 1 guarantees good fluid effect, make and react between hydrogen fluoride and the aluminium hydroxide thoroughly, improved the output of aluminum fluoride, dreg removing system 58 has improved operator's Working environment, reduced labour intensity, production stability improves greatly.
Claims (9)
1, a kind of aluminum fluoride by dry process production equipment, comprise fluidized-bed, the bottom of fluidized-bed prepares purification system with hydrogen fluoride and is connected, fluidized-bed top is connected with the aluminium hydroxide drying installation, it is characterized in that: described fluidized-bed is a two-stage fluidized, comprises two-layer sieve plate up and down, all offers air inlet port on the two-layer up and down sieve plate, be provided with inlet pipe on the air inlet port of upper strata sieve plate and lower floor's sieve plate, the top of inlet pipe is provided with the blast cap of offering jet hole.
2, aluminum fluoride by dry process production equipment as claimed in claim 1, it is characterized in that: the discharge port of described two-stage fluidized is connected with the aluminum fluoride water cooler, and two-stage fluidized also is connected with cyclone, and cyclone is connected with device for absorbing tail gas.
3, aluminum fluoride by dry process production equipment as claimed in claim 1 or 2, it is characterized in that: described aluminium hydroxide drying installation comprises box for feeding odd and warm air drying pipe, the discharge port of box for feeding odd is connected with feed mechanism, the discharge port of feed mechanism is positioned at the warm air drying pipe, one end of warm air drying pipe is connected with hot air generator, the other end is connected with cyclonic separator, the air outlet of cyclonic separator is connected with the waste heat pipe that is back to hot air generator, draw time case pipeline that is connected with box for feeding odd on the waste heat pipe, the pipeline that is back to waste heat pipe or hot air generator is drawn at the top of box for feeding odd.
4, aluminum fluoride by dry process production equipment as claimed in claim 3 is characterized in that: described feed mechanism is a feed screw, and described hot air generator is the mixing section that is connected with the combustion chamber.
5, aluminum fluoride by dry process production equipment as claimed in claim 1 or 2, it is characterized in that: described hydrogen fluoride prepares purification system and comprises reaction kiln and preliminary cleaning tower, the reaction kiln is connected by gas operated device with the preliminary cleaning tower, described gas operated device comprises intake ducting, outlet pipe and sulfuric acid transfer lime, curved leading to of intake ducting and outlet pipe connects, the sulfuric acid transfer lime feeds in the intake ducting, and the end that the sulfuric acid transfer lime feeds in the intake ducting is positioned at intake ducting and below, the curved logical junction of outlet pipe.
6, aluminum fluoride by dry process production equipment as claimed in claim 5 is characterized in that: the end that described sulfuric acid transfer lime feeds in the intake ducting is provided with shower nozzle.
7, aluminum fluoride by dry process production equipment as claimed in claim 5, it is characterized in that: described reaction kiln is connected with dreg removing system, this dreg removing system comprises in gypsum deslagging spiral, the gypsum and spiral and chapelet, the output terminal of described chapelet is provided with the gypsum conveyor screw, and the output terminal of gypsum conveyor screw is provided with the gypsum shaped device.
8, aluminum fluoride by dry process production equipment as claimed in claim 7 is characterized in that: described gypsum shaped device is a dribbling balling machine.
9, aluminum fluoride by dry process production equipment as claimed in claim 8, it is characterized in that: have exhaust vent on the described dribbling balling machine, exhaust vent is connected with the absorption blower fan by pipeline device separated from the gas successively, absorption tower, the water outlet on absorption tower is provided with settling bowl, settling bowl is connected by the inlet channel of pipeline with a lift pump, and the lift pump outlet conduit is connected with the water inlet pipe on absorption tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200700352U CN201209123Y (en) | 2008-04-15 | 2008-04-15 | Dry method aluminun fluoride production apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200700352U CN201209123Y (en) | 2008-04-15 | 2008-04-15 | Dry method aluminun fluoride production apparatus |
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| Publication Number | Publication Date |
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| CN201209123Y true CN201209123Y (en) | 2009-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200700352U Expired - Fee Related CN201209123Y (en) | 2008-04-15 | 2008-04-15 | Dry method aluminun fluoride production apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920980A (en) * | 2010-05-18 | 2010-12-22 | 中萤集团有限公司 | Energy comprehensive utilization system for producing anhydrous hydrogen fluoride and dry aluminum fluoride and method thereof |
| CN103877916A (en) * | 2014-03-15 | 2014-06-25 | 宜章弘源化工有限责任公司 | Fluidized bed tail gas utilization method and equipment in dry-method aluminum fluoride production |
| CN103880055A (en) * | 2014-03-15 | 2014-06-25 | 宜章弘源化工有限责任公司 | Fluidized bed tail gas treatment device in dry-method aluminum fluoride production |
| CN104677076A (en) * | 2013-11-26 | 2015-06-03 | 大地新源科技(北京)有限公司 | Heat-carrying gas penetrating and heating mode |
| CN107522640A (en) * | 2017-09-27 | 2017-12-29 | 湖北兴发化工集团股份有限公司 | The method and device of organic matter is recycled in a kind of dimethyl sulfoxide (DMSO) abraum salt |
-
2008
- 2008-04-15 CN CNU2008200700352U patent/CN201209123Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920980A (en) * | 2010-05-18 | 2010-12-22 | 中萤集团有限公司 | Energy comprehensive utilization system for producing anhydrous hydrogen fluoride and dry aluminum fluoride and method thereof |
| CN101920980B (en) * | 2010-05-18 | 2012-01-25 | 中萤集团有限公司 | Energy comprehensive utilization system for producing anhydrous hydrogen fluoride and dry aluminum fluoride and method thereof |
| CN104677076A (en) * | 2013-11-26 | 2015-06-03 | 大地新源科技(北京)有限公司 | Heat-carrying gas penetrating and heating mode |
| CN103877916A (en) * | 2014-03-15 | 2014-06-25 | 宜章弘源化工有限责任公司 | Fluidized bed tail gas utilization method and equipment in dry-method aluminum fluoride production |
| CN103880055A (en) * | 2014-03-15 | 2014-06-25 | 宜章弘源化工有限责任公司 | Fluidized bed tail gas treatment device in dry-method aluminum fluoride production |
| CN103880055B (en) * | 2014-03-15 | 2015-05-20 | 宜章弘源化工有限责任公司 | Fluidized bed tail gas treatment device in dry-method aluminum fluoride production |
| CN107522640A (en) * | 2017-09-27 | 2017-12-29 | 湖北兴发化工集团股份有限公司 | The method and device of organic matter is recycled in a kind of dimethyl sulfoxide (DMSO) abraum salt |
| CN107522640B (en) * | 2017-09-27 | 2023-05-02 | 湖北兴发化工集团股份有限公司 | Method and device for recycling organic matters in dimethyl sulfoxide waste salt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20100415 |