CN211133033U - Drying system is used in production of energy-efficient polyaluminium chloride - Google Patents
Drying system is used in production of energy-efficient polyaluminium chloride Download PDFInfo
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- CN211133033U CN211133033U CN201921872595.4U CN201921872595U CN211133033U CN 211133033 U CN211133033 U CN 211133033U CN 201921872595 U CN201921872595 U CN 201921872595U CN 211133033 U CN211133033 U CN 211133033U
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title claims abstract description 87
- 238000001035 drying Methods 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000000428 dust Substances 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 17
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005494 condensation Effects 0.000 claims description 12
- 238000010410 dusting Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 9
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 26
- 238000001704 evaporation Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 9
- 238000005507 spraying Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002036 drum drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- -1 hydroxide ions Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides an energy-efficient drying system is used in polyaluminium chloride production, utilize the extrinsic cycle evaporimeter to dry into the polyaluminium chloride solution about 60% with the concentration of concentration for about 40% concentration evaporation concentration, then recycle the roller dryer and become the concentration for about 60% polyaluminium chloride solution drying into the concentration be about 80% half dry solid, utilize air current drying system to dry into graininess polyaluminium chloride with 80% half dry solid about at last, graininess polyaluminium chloride can not produce dust pollution when using, moreover, no matter be the concentrated drying of extrinsic cycle evaporimeter or air current drying all than the roller dryer use amount of saving steam, consequently, the utility model discloses can effectual reduction steam use amount, thereby the energy saving, reduce solid state polyaluminium chloride's manufacturing cost.
Description
Technical Field
The utility model relates to a polyaluminium chloride production facility technical field, concretely relates to drying system is used in production of energy-efficient polyaluminium chloride.
Background
Polyaluminium chloride is a novel water purifying material, is an inorganic high-molecular coagulant, is also called polyaluminium for short, has high electric neutralization and bridging effects on colloids and particles in water, can powerfully remove micro-toxic substances and heavy metal ions, and has stable properties. Due to the bridging action of hydroxide ions and the polymerization action of polyvalent anions, the produced polyaluminium chloride is an inorganic macromolecular water treatment agent with relatively large molecular weight and relatively high charge. The form can be divided into solid and liquid. The solid is divided into dark brown, beige, golden yellow and white according to different colors, the liquid can be colorless and transparent, yellowish, light yellow to yellow brown, and the polyaluminium chloride with different colors has larger difference in application and production technology.
The solid polyaluminium chloride is mainly prepared by drying a liquid polyaluminium chloride solution through a roller drying system or a spray drying system, wherein the solid polyaluminium chloride produced by the spray drying system exists in a powder form, the solid polyaluminium chloride produced by the roller drying system exists in a particle form, and the powder polyaluminium chloride is easy to generate dust pollution in use, so that corresponding dust removing equipment is required to be added for reducing the dust pollution along with the enhancement of environmental awareness of people, but the investment of the dust removing equipment inevitably increases the use cost of the polyaluminium chloride, and the polyaluminium chloride forming the dust pollution is collected by the dust removing equipment after the dust removing equipment is adopted, so that the waste of raw materials is caused, the use cost of the polyaluminium chloride is further increased, and the granular polyaluminium chloride cannot generate the dust pollution in use, so that the granular polyaluminium chloride in the market is not required at present, the price is high.
The granular polyaluminium chloride is mainly formed by drying through a roller drying system, as shown in fig. 1, the roller drying system directly sends the polyaluminium chloride solution with the concentration of about 40% produced by a polyaluminium chloride production system into a roller dryer for drying, so as to remove the moisture in the polyaluminium chloride solution, and a large amount of heat energy is consumed, thus the production cost of the granular polyaluminium chloride is high, and the price of the granular polyaluminium chloride in the market is high. Therefore, how to reduce the production cost of solid polyaluminium chloride while avoiding dust pollution becomes a technical problem to be solved urgently in the production of solid polyaluminium chloride.
SUMMERY OF THE UTILITY MODEL
In conclusion, in order to overcome the defects of the prior art, the utility model provides a drying system for producing high-efficiency and energy-saving polyaluminium chloride, the system firstly uses the outer circulation evaporator to evaporate, concentrate and dry the polyaluminium chloride solution with the concentration of about 40 percent into the polyaluminium chloride solution with the concentration of about 60 percent, then uses the roller dryer to dry the polyaluminium chloride solution with the concentration of about 60 percent into semi-dry solid with the concentration of about 80 percent, and finally uses the air flow drying system to dry the semi-dry solid with the concentration of about 80 percent into granular polyaluminium chloride, the granular polyaluminium chloride can not generate dust pollution when in use, and the concentrated drying and the air flow drying of the outer circulation evaporator can save the steam consumption compared with the roller dryer, therefore, the utility model can effectively reduce the steam consumption, thereby saving energy, the production cost of the solid polyaluminium chloride is reduced.
In order to solve the technical problem, the utility model discloses a technical scheme does:
an energy-efficient drying system for polyaluminium chloride production, wherein: including extrinsic cycle evaporimeter, delivery pump, drum dryer, screw conveyer, feeder, whirlwind charge ware, fan and dust collector, the feed inlet intercommunication polyaluminium chloride solution source of extrinsic cycle evaporimeter, the air inlet intercommunication steam source of extrinsic cycle evaporimeter, the discharge gate of extrinsic cycle evaporimeter pass through the feed inlet of delivery pump intercommunication drum dryer, the air inlet intercommunication steam source of drum dryer, the discharge gate intercommunication screw conveyer's of drum dryer feed inlet, screw conveyer's discharge gate intercommunication feeder's feed inlet, the discharge gate intercommunication air flow pipeline of feeder, the air intake intercommunication atmosphere of air flow pipeline, the air intake of air flow pipeline on be provided with air heating device, the air outlet intercommunication whirlwind charge ware's of air flow pipeline air outlet air intake, the air outlet intercommunication fan's of whirlwind charge ware air intake, the discharge port of the cyclone collector is connected with the storage bin through an air-closing discharger, and the air outlet of the fan is connected with a dust removal device.
Further, the external circulation evaporator is a double-effect external circulation evaporator and comprises a first-effect separator, a first-effect heater, a second-effect separator, a second-effect heater and a condenser, wherein a feed inlet of the first-effect separator is communicated with a polyaluminium chloride solution source, a discharge outlet of the first-effect separator is communicated with a feed inlet of the first-effect heater and a feed inlet of the second-effect separator, a discharge outlet of the first-effect heater is communicated with a circulation feed inlet of the first-effect separator, an air inlet of the first-effect heater is communicated with a steam source, a discharge outlet is arranged at the lower end of the first-effect heater, an air outlet of the first-effect separator is communicated with an air inlet of the second-effect heater, a discharge outlet of the second-effect heater is communicated with a circulation feed inlet of the second-effect separator, a discharge outlet of the second-effect heater is arranged at the lower end of the second-effect heater, an air outlet of the second-effect, the gas outlet intercommunication vacuum pump of condenser, the bin outlet of a effect heater and the bin outlet of two effect heaters all communicate with the feed inlet of delivery pump, the comdenstion water export intercommunication condensate pump of condenser, the cooling water import and the cooling water export intercommunication cooling water source of condenser.
Further, the pipeline of feed inlet and the polyaluminium chloride solution source intercommunication of first effect separator on be provided with one and imitate the feed valve, the pipeline of the bin outlet of first effect heater and delivery pump intercommunication on be provided with one and imitate the relief valve, the pipeline of the bin outlet of two effect heaters and delivery pump intercommunication on be provided with two and imitate the relief valve, the pipeline of the feed inlet intercommunication of discharge gate and two effect separators of first effect separator on be provided with two and imitate the feed valve.
Further, the air heating device comprises a housing, a radiator and a condensation drain pipeline, wherein an air inlet of the housing is communicated with the atmosphere, an air outlet of the housing is communicated with an air inlet of the airflow pipeline, the radiator is arranged in the housing, the air inlet of the radiator is communicated with a steam source, a condensation water outlet of the radiator is connected with the condensation drain pipeline, and the condensation drain pipeline is a drain pipeline with a bypass.
Further, dust collector including spraying dusting tower and circulating pump, the inlet that sprays of spraying dusting tower communicate water source from beginning, the air outlet of fan is connected to the air inlet of spraying dusting tower, the circulation liquid outlet of spraying dusting tower pass through circulating pump and the circulation inlet intercommunication of spraying dusting tower, the air outlet intercommunication atmosphere of spraying dusting tower.
Further, the roller dryer is a scraper type roller dryer.
Furthermore, a feed valve is arranged on a pipeline for communicating a discharge port of the conveying pump with a feed port of the roller dryer.
The utility model has the advantages that:
1. the utility model discloses at first utilize the polyaluminium chloride solution of concentration for about 40% to utilize the concentrated drying of outer loop evaporator evaporation ware evaporative concentration to become about 60% polyaluminium chloride solution, then recycle the roller dryer with the concentration be about 60% polyaluminium chloride solution drying become concentration be about 80% half dry solid, utilize air current drying system to become grainy polyaluminium chloride with 80% half dry solid drying about, grainy polyaluminium chloride can not produce dust pollution when using, moreover, no matter the concentrated drying of outer loop evaporator or air current drying all compare the use amount of roller dryer saving steam, therefore, the utility model discloses can effectual reduction steam use amount, thereby the energy saving reduces solid state polyaluminium chloride's manufacturing cost.
2. The utility model discloses a moisture of a ton approximately needs 550 kilograms steam in the economic benefits and social benefits extrinsic cycle evaporimeter evaporation polyaluminium chloride solution, and the moisture of a ton approximately needs 1.5 tons steam in the scraper blade roller dryer evaporation polyaluminium chloride solution, economic benefits and social benefits extrinsic cycle evaporimeter cooperation scraper blade roller dryer, at supplementary air current drying system, can effectual saving steam quantity to reduce energy consumption.
3. The utility model discloses a semi-dry solid about 80% after the drum dryer is dried gets into the dry air flow pipeline of air current, under the effect of fan, the air that gets into air flow pipeline is heated into the hot-blast through air heating device earlier, and the hot gas flow carries the semi-dry solid about 80% to flow in the air flow pipeline, and the hot gas flow absorbs the moisture in the semi-dry solid, and polyaluminium chloride is by the drying, and simultaneously, when the hot gas flow flows, utilizes air pressure to blow off the semi-dry solid into the graininess, therefore, the utility model discloses the solid state polyaluminium chloride who produces is the graininess, and graininess polyaluminium chloride can not produce dust pollution when using, satisfies the environmental protection requirement.
4. The utility model discloses simple structure, convenient to use, low cost can be effectual the current solid state poly aluminium chloride production efficiency of solution low, and is with high costs, and the energy resource consumption in can effectual reduction solid state poly aluminium chloride production process reduces heat emission, energy saving and emission reduction, reduction in production cost, improvement performance in business.
Drawings
FIG. 1 is a schematic structural diagram of a conventional drum drying system for producing solid polyaluminium chloride;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 2, the drying system for the production of the high-efficiency energy-saving polyaluminium chloride comprises an external circulation evaporator, a delivery pump 8, a drum dryer 16, a screw conveyor 17, a feeder 18, a cyclone collector 20, a fan 22 and a dust removal device, wherein the external circulation evaporator is a double-effect external circulation evaporator and comprises a first-effect separator 3, a first-effect heater 4, a second-effect separator 5, a second-effect heater 6 and a condenser 7, a feed inlet of the first-effect separator 3 is communicated with a polyaluminium chloride solution source 1, a pipeline for communicating the feed inlet of the first-effect separator 3 with the polyaluminium chloride solution source 1 is provided with a first-effect feed valve 11, a discharge outlet of the first-effect separator 3 is communicated with a feed inlet of the first-effect heater 4 and a feed inlet of the second-effect separator 5, a pipeline for communicating the discharge outlet of the first-effect separator 3 with the feed inlet of the second-effect separator 5 is provided with a second-effect feed valve 14, the discharge port of the first-effect heater 4 is communicated with the circulating feed inlet of the first-effect separator 3, the air inlet of the first-effect heater 4 is communicated with the steam source 2, the lower end of the first-effect heater 4 is provided with a discharge port, the air outlet of the first-effect separator 3 is communicated with the air inlet of the second-effect heater 6, the discharge port of the second-effect separator 5 is communicated with the feed inlet of the second-effect heater 6, the discharge port of the second-effect heater 6 is communicated with the circulating feed inlet of the second-effect separator 5, the lower end of the second-effect heater 6 is provided with a discharge port, the air outlet of the second-effect separator 5 is communicated with the air inlet of the condenser 7, the air outlet of the condenser 7 is communicated with the vacuum pump 9, the discharge port of the first-effect heater 4 and the discharge port of the second-effect heater 6 are communicated with the feed inlet of the conveying pump 8, and a pipeline for, the pipeline of the bin outlet of the double-effect heater 6 and the delivery pump 8 intercommunication on be provided with the double-effect discharge valve 13, the condensate outlet of the condenser 7 communicate with the condensate pump 10, the cooling water inlet and the cooling water outlet of the condenser 7 communicate with the cooling water source, the discharge outlet of the delivery pump 8 communicates with the feed inlet of the roller dryer 16, the pipeline of the discharge outlet of the delivery pump 8 and the feed inlet of the roller dryer 16 communicates is provided with the feed valve 15, the roller dryer 16 is the scraper type roller dryer 16, the air inlet of the roller dryer 16 communicates with the steam source 2, the discharge outlet of the roller dryer 16 communicates with the feed inlet of the screw conveyor 17, the discharge outlet of the screw conveyor 17 communicates with the feed inlet of the feeder 18, the discharge outlet of the feeder 18 communicates with the air flow pipeline 19, the air inlet of the air flow pipeline 19 communicates with the atmosphere, the air inlet of the airflow pipeline 19 is provided with an air heating device 21, the air heating device 21 comprises a housing 25, a radiator 26 and a condensation hydrophobic pipeline 27, an air inlet of the housing 25 is communicated with the atmosphere, an air outlet of the housing 25 is communicated with the air inlet of the airflow pipeline 19, the housing 25 is internally provided with the radiator 26, the air inlet of the radiator 26 is communicated with a steam source 2, a condensation water outlet of the radiator 26 is connected with the condensation hydrophobic pipeline 27, the condensation hydrophobic pipeline 27 is a hydrophobic pipeline with a bypass, an air outlet of the airflow pipeline 19 is communicated with the air inlet of the cyclone collector 20, the air outlet of the cyclone collector 20 is communicated with the air inlet of the fan 22, a discharge port of the cyclone collector 20 is connected with the stock bin 24 through an air-closing discharger 23, and the air outlet of the fan 22 is connected with a dust removal device. The dust collector comprises a spray dust removal tower 28 and a circulating pump 29, a spray inlet of the spray dust removal tower 28 is communicated with a tap water source 30, an air inlet of the spray dust removal tower 28 is connected with an air outlet of the fan 22, a discharge port of the spray dust removal tower 28 is communicated with a circulating inlet of the spray dust removal tower 28 through the circulating pump 29, and the air outlet of the spray dust removal tower 28 is communicated with the atmosphere.
When the device is used, the first-effect feed valve 11 is opened, the first-effect discharge valve 12 and the second-effect discharge valve 13 are closed, polyaluminium chloride solution with the concentration of about 40% produced by a polyaluminium chloride production system enters the first-effect separator 3, high-temperature steam provided by the steam source 2 enters from the air inlet of the first-effect heater 4, the vacuum pump 9 is opened to pump vacuum, the polyaluminium chloride solution with the concentration of about 40% enters the feed inlet of the first-effect heater 4 from the discharge outlet of the first-effect separator 3, the high-temperature steam in the first-effect heater 4 is introduced into the polyaluminium chloride solution to be boiled to generate bubbles, the bubbles carry the polyaluminium chloride solution to flow out from the discharge outlet of the first-effect heater 4 under the action of vacuum and pressure difference, and then enter the first-effect separator 3 again from the circulating feed inlet of the first-effect separator 3, so that circulating heating evaporation is formed, and the moisture in the, the polyaluminum chloride solution was preliminarily concentrated. Opening the two-effect feed valve 14, under the action of the pressure difference between the one-effect separator 3 and the two-effect separator 5, allowing the polyaluminium chloride solution in the one-effect separator 3 to enter the two-effect separator 5 through the two-effect feed valve 14, allowing the steam separated by the one-effect separator 3 to enter the two-effect heater 6 from the air inlet of the two-effect heater 6, allowing the polyaluminium chloride solution to flow out of the discharge port of the two-effect separator 5 and enter the two-effect heater 6, allowing the steam separated by the one-effect separator 3 to reheat the polyaluminium chloride solution in the two-effect heater 6 to boil, under the action of vacuum and pressure difference, the polyaluminium chloride solution forms circulation between the double-effect heater 6 and the double-effect separator 5, steam discharged from the double-effect separator 5 enters the condenser 7, condensed water is condensed in the condenser 7, the condensed water is discharged through a condensing pump 10, and non-condensed gas is discharged from a discharge port of the condenser 7 under the action of a vacuum pump 9. The polyaluminum chloride solution with the concentration of about 40 percent is evaporated and concentrated to the concentration of about 60 percent.
Opening a conveying pump 8, a first-effect discharge valve 12, a second-effect discharge valve 13 and a feeding valve 15, feeding the polyaluminium chloride solution which is evaporated and concentrated by a double-effect external circulation evaporator and has the concentration of about 60% into a roller dryer 16 under the action of the conveying pump 8, wherein the roller dryer 16 is a scraper roller dryer 16, the polyaluminium chloride solution falls into a material pool of the scraper roller dryer 16, high-temperature steam is introduced into a roller above the material pool, the polyaluminium chloride solution in the material pool is adhered to the surface of the roller in the rolling process of the roller, is heated by the high-temperature steam in the roller, the moisture of the polyaluminium chloride solution is evaporated, the polyaluminium chloride solution is increased to semi-dry solids with the concentration of about 80% again, the dried semi-dry solids adhered to the surface of the roller are scraped by a scraper of the scraper roller dryer 16, fall into a spiral conveyor 17 and are conveyed by the spiral conveyor 17, and then into the feeder 18, a scraper-type drum dryer is known in the art and will not be described in detail in this embodiment.
Starting a fan 22, allowing outside air to enter a shell of an air heating device 21, allowing high-temperature steam to enter from an air inlet of a radiator 26, allowing the radiator 26 to radiate heat and heat the air entering the shell, heating and drying the air, allowing the high-temperature dry air to flow along an airflow pipeline 19 under the action of the fan 22, allowing the high-temperature dry air to flow along the airflow pipeline 19 when flowing through a feeder 18, allowing polyaluminium chloride with the concentration of about 80% output by the feeder 18 to flow along the airflow pipeline 19, allowing the high-temperature dry air to absorb moisture of the polyaluminium chloride in a flowing process, drying the polyaluminium chloride into a particle state, allowing the particle-shaped dry polyaluminium chloride to enter a cyclone collector 20 together with the air, pumping the air out by the fan 22, allowing the particle-shaped dry polyaluminium chloride to flow out from a discharge port at the lower end of the cyclone collector 20, opening, in the spray dust removal tower 28, the air pumped by the fan 22 is sprayed and cleaned by tap water, the air is cleaned and dedusted and then is emptied, and the tap water entering the spray dust removal tower 28 is recycled under the action of the circulating pump 29.
It should be noted that the above-mentioned embodiments are illustrative and not restrictive of the technical solutions of the present invention, and equivalents of those skilled in the art or other modifications made according to the prior art are intended to be included within the scope of the claims of the present invention as long as they do not exceed the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides an energy-efficient drying system for polyaluminium chloride production which characterized in that: including extrinsic cycle evaporimeter, delivery pump (8), drum dryer (16), screw conveyer (17), feeder (18), whirlwind charge collector (20), fan (22) and dust collector, extrinsic cycle evaporimeter's feed inlet intercommunication polyaluminium chloride solution source (1), extrinsic cycle evaporimeter's air inlet intercommunication steam source (2), extrinsic cycle evaporimeter's discharge gate pass through the feed inlet of delivery pump (8) intercommunication drum dryer (16), the air inlet intercommunication steam source (2) of drum dryer (16), the discharge gate intercommunication screw conveyer (17) of drum dryer (16) the feed inlet of feed inlet, the discharge gate intercommunication air flow pipeline (19) of screw conveyer (17), the discharge gate intercommunication air flow pipeline (19) of feeder (18), the air intake intercommunication atmosphere of air flow pipeline (19), the air inlet of the airflow pipeline (19) is provided with an air heating device (21), the air outlet of the airflow pipeline (19) is communicated with the air inlet of the cyclone collector (20), the air outlet of the cyclone collector (20) is communicated with the air inlet of the fan (22), the discharge hole of the cyclone collector (20) is connected with the stock bin (24) through the air closing discharger (23), and the air outlet of the fan (22) is connected with the dust removal device.
2. The efficient and energy-saving drying system for polyaluminum chloride production of claim 1, wherein: the outer circulation evaporator is a double-effect outer circulation evaporator and comprises an effect separator (3), an effect heater (4), a double-effect separator (5), a double-effect heater (6) and a condenser (7), wherein a feed inlet of the effect separator (3) is communicated with a polyaluminium chloride solution source (1), a discharge outlet of the effect separator (3) is communicated with a feed inlet of the effect heater (4) and a feed inlet of the double-effect separator (5), a discharge outlet of the effect heater (4) is communicated with an outer circulation feed inlet of the effect separator (3), an air inlet of the effect heater (4) is communicated with a steam source (2), a discharge outlet is arranged at the lower end of the effect heater (4), an air outlet of the effect separator (3) is communicated with an air inlet of the double-effect heater (6), a discharge outlet of the double-effect separator (5) is communicated with a feed inlet of the double-effect heater (6), the extrinsic cycle feed inlet of discharge gate intercommunication two-effect separator (5) of two-effect heater (6), two-effect heater (6) lower extreme sets up the bin outlet, the gas outlet intercommunication condenser (7) of two-effect separator (5) the air inlet of air outlet intercommunication condenser (7), the gas outlet intercommunication vacuum pump (9) of condenser (7), the bin outlet of one-effect heater (4) and the bin outlet of two-effect heater (6) all with the feed inlet intercommunication of delivery pump (8), the comdenstion water export intercommunication condensate pump (10) of condenser (7), the cooling water import and the cooling water export intercommunication cooling water source of condenser (7).
3. The efficient and energy-saving drying system for polyaluminium chloride production according to claim 2, wherein: the pipeline of feed inlet and poly aluminium chloride solution source (1) intercommunication of first effect separator (3) on be provided with one and imitate feed valve (11), the pipeline of the bin outlet of first effect heater (4) and delivery pump (8) intercommunication on be provided with one and imitate discharge valve (12), the pipeline of the bin outlet of second effect heater (6) and delivery pump (8) intercommunication on be provided with two and imitate discharge valve (13), the pipeline of the feed inlet intercommunication of discharge gate and second effect separator (5) of first effect separator (3) on be provided with two and imitate feed valve (14).
4. The efficient and energy-saving drying system for polyaluminum chloride production of claim 1, wherein: air heating device (21) include housing (25), radiator (26) and condensation drain line (27), the air inlet of housing (25) communicate the atmosphere, the gas outlet of housing (25) communicates the air intake of air flow pipeline (19), housing (25) in be provided with radiator (26), the air inlet of radiator (26) communicate steam source (2), the condensation delivery port of radiator (26) connect condensation drain line (27), condensation drain line (27) for taking the drain line of bypass.
5. The efficient and energy-saving drying system for polyaluminum chloride production of claim 1, wherein: the dust collector include spray dusting tower (28) and external circulation pump (29), the spray inlet of spray dusting tower (28) communicate water source (30), the air outlet of fan (22) is connected to the air inlet of spray dusting tower (28), the circulation liquid outlet of spray dusting tower (28) communicate through the external circulation inlet of external circulation pump (29) and spray dusting tower (28), the air outlet intercommunication atmosphere of spray dusting tower (28).
6. The efficient and energy-saving drying system for polyaluminum chloride production of claim 1, wherein: the roller dryer (16) is a scraper type roller dryer.
7. The efficient and energy-saving drying system for polyaluminum chloride production of claim 1, wherein: and a feed valve (15) is arranged on a pipeline for communicating a discharge hole of the conveying pump (8) with a feed hole of the roller dryer (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921872595.4U CN211133033U (en) | 2019-11-02 | 2019-11-02 | Drying system is used in production of energy-efficient polyaluminium chloride |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921872595.4U CN211133033U (en) | 2019-11-02 | 2019-11-02 | Drying system is used in production of energy-efficient polyaluminium chloride |
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| CN211133033U true CN211133033U (en) | 2020-07-31 |
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|---|---|---|---|
| CN201921872595.4U Withdrawn - After Issue CN211133033U (en) | 2019-11-02 | 2019-11-02 | Drying system is used in production of energy-efficient polyaluminium chloride |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110652739A (en) * | 2019-11-02 | 2020-01-07 | 郑州博大浓缩干燥设备有限公司 | Drying system is used in production of energy-efficient polyaluminium chloride |
-
2019
- 2019-11-02 CN CN201921872595.4U patent/CN211133033U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110652739A (en) * | 2019-11-02 | 2020-01-07 | 郑州博大浓缩干燥设备有限公司 | Drying system is used in production of energy-efficient polyaluminium chloride |
| CN110652739B (en) * | 2019-11-02 | 2024-04-12 | 郑州博大浓缩干燥设备有限公司 | Efficient and energy-saving drying system for polyaluminium chloride production |
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