CN104496204A - Energy-saving high-performance dry-process calcium hydroxide production line - Google Patents
Energy-saving high-performance dry-process calcium hydroxide production line Download PDFInfo
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- CN104496204A CN104496204A CN201410815822.5A CN201410815822A CN104496204A CN 104496204 A CN104496204 A CN 104496204A CN 201410815822 A CN201410815822 A CN 201410815822A CN 104496204 A CN104496204 A CN 104496204A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 title claims abstract description 29
- 239000000920 calcium hydroxide Substances 0.000 title claims abstract description 25
- 229910001861 calcium hydroxide Inorganic materials 0.000 title claims abstract description 25
- 238000001035 drying Methods 0.000 title abstract 3
- 239000000843 powder Substances 0.000 claims abstract description 70
- 230000029087 digestion Effects 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 50
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 239000002893 slag Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 34
- 239000010881 fly ash Substances 0.000 claims description 28
- 238000003756 stirring Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 6
- 235000012054 meals Nutrition 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 24
- 239000011575 calcium Substances 0.000 description 13
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- 239000000292 calcium oxide Substances 0.000 description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 238000000227 grinding Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000004798 organs belonging to the digestive system Anatomy 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Processing Of Solid Wastes (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses an energy-saving high-performance dry-process calcium hydroxide production line. The production line comprises a material delivery device, a digestion device, a powder selecting device, a water source supply device and a PLC control system; the material delivery device is connected with the inlet of the digestion device by use of a conveying mechanism; the digestion device is provided with at least three digesters orderly connected with one another, and the outlets and the inlets of the adjacent digesters are orderly communicated with each other; a dust remover and a heat conversion system for digesters are arranged in the water source supply device; the water outlet of the heat conversion system is communicated with the water inlet of the primary digester; the powder selecting device comprises a powder selector and a dust remover for the powder selector; the feeding hole of the powder selector is communicated with the discharge hole of the digestion device via a conveying mechanism; the discharge hole of the powder selector is divided into a powder outlet and a slag outlet; the air outlet of the powder selector is connected with the air inlet of the dust remover for the powder selector; the discharge hole of the dust remover for the powder selector is communicated with a finished product output mechanism. According to the energy-saving high-performance dry-process calcium hydroxide production line, the purity of the finished product is improved, environmental pollution caused by accidental leakage during production can be prevented, the energy is saved, the emission is reduced, the automation degree is high and no production personnel is needed; in short, the production line conforms to the national environmental protection policy intention.
Description
Technical field
The present invention relates to calcium hydroxide production field, be specifically related to a kind of energy-saving and high efficient dry method calcium hydroxide production line.
Background technology
There is following defect in all calcium hydroxide equipment of current use: 1) traditional way: add water directly outdoor for calcium hydroxide block, complete digestion reaction, and sell; Existing problems: environmental pollution greatly, to workman causes dust to injure, produce calcium hydroxide water content cannot ensure, finish fineness cannot ensure, finished product calcium contents cannot ensure, the production cycle is long, recruitment many (substantially eliminating this kind of mode).2) " grey calcium machine " mode: add water calcium oxide reaction, add in ash charge calcium machine carry out grinding, by grind for finished product, cannot by discharging as slag of grinding; Existing problems: the link that adds water contaminate environment is same serious, when grinding with grey calcium machine energy consumption high, part " raw burn " " impurity " can be ground when grinding after be mixed into finished product and reduce finished product calcium contents, output is limited to add water reaction times and place, and water content is uncontrollable.3) old-fashioned dry method mode: crush material to 3 ~ 6mm feed, then feed water, digests and is completed by special digestion reaction bin equipment, select powder afterwards, select during powder and discharged by impurity, and on whole system, installed dedusting additional, to ensure production environment.(the existing world comparatively Advanced Mode).Existing problems: about 50% " raw burn " " impurity " can be broken for the fineness that can be mixed into and select powder finished product time broken, cause finished product calcium contents to reduce.In addition, above three kinds of modes problem of all having production capacity too low.
Summary of the invention
The problems such as the production capacity that the object of the invention is to exist for existing calcium hydroxide production device is low, finished product calcium contents is low, contaminate environment, a kind of energy-saving and high efficient dry method calcium hydroxide production line is provided, this production line centralized Control, level of automation be high, without the need to producers, finished product purity is high, energy consumption and discharge few, meet the environmental protection policy of country.
For achieving the above object, the present invention adopts following technical scheme: a kind of energy-saving and high efficient dry method calcium hydroxide production line, comprise material distribution device, slaking apparatus, powder selection device, water source supply device and PLC control system, it is characterized in that: described material distribution device comprises material bin and Charge Mixture Control part, described Charge Mixture Control part is connected with PLC control system signal, material bin outlet is communicated with Charge Mixture Control part entrance through transfer mechanism, the outlet of Charge Mixture Control part connects slaking apparatus import through transfer mechanism, described slaking apparatus at least arranges three digestion machines connected successively, the outlet of adjacent digestion machine, entrance is communicated with successively, wherein final stage digestion machine is as cooling storehouse, all the other digestion machines are as reaction warehouse, one-level digestion machine inlet capable in reaction warehouse is communicated with material distribution device, final stage digestion machine discharge port as cooling storehouse connects powder selection device through transfer mechanism, digestion machine fly-ash separator and thermal conversion system are set in described water source supply device, digestion machine fly-ash separator blast inlet is tightly connected through wind conveying pipe road final stage digestion machine air outlet, digestion machine fly-ash separator air outlet connects thermal conversion system blast inlet, tank outlet is communicated with thermal conversion system water-in through water supply conduit, thermal conversion system water outlet digests machine water-in through water pump and one-level and is communicated with, described powder selection device comprises powder separating machine and powder separating machine fly-ash separator, described powder separating machine opening for feed is communicated with through transfer mechanism with slaking apparatus discharge port, powder separating machine discharge port is divided into meal outlet and slag notch, described powder separating machine meal outlet connects finished product output mechanism, powder separating machine slag notch connects slag particle export structure, air outlet of powder concentrator connects powder separating machine fly-ash separator blast inlet, and powder separating machine fly-ash separator discharge port is communicated with finished product output mechanism through transfer mechanism, control valve, described said apparatus and transfer mechanism are the state of being tightly connected except fly-ash separator.
Based on technique scheme, in digestion machine in described above-mentioned slaking apparatus, stirring main shaft is set, stir dislocation on main shaft and be evenly equipped with agitating vane, stirring main shaft and driving mechanism are in transmission connection, bottom digestion machine cabin, close on discharge port position spilling dividing plate is vertically set, bottom cabin, also leave slag-drip opening, and arrange emptying dividing plate at slag-drip opening place, described emptying dividing plate state is controlled automatically by PLC control system.
Based on technique scheme, described digestion machine driving mechanism is designed to self-adjusting apparatus, be specially: comprise motor, step-down gear, frequency transformer, frequency transformer signal input part and being connected with PLC control system output end signal, motor feed circuit is connected with PLC control system current signal input end signal, described digestion machine stirs main shaft and changes according to the different moments of torsion of each district material particles, viscosity, after current of electric changes by information feed back to PLC control system, PLC control system adjusts frequency transformer after data being calculated, and then controls motor speed.
Based on technique scheme, described Charge Mixture Control part is electron helical burden balance, described electron helical burden balance with while metered volume and the mode of weight information feed back is carried out to PLC control system, PLC control system calculates raw-material purity estimated value according to weight and volume data, material purity deviation is made to the ratio that the adds water adjustment of adaptation.
Based on technique scheme, in the water supply water route of water source supply device and slaking apparatus, be provided with Electromagnetic Flow instrument and electric controlled regulating valve door.This electromagnetism instrument is for measuring discharge.
Beneficial effect of the present invention: 1) finished product purity improves: because whole link is without the need to fragmentation, completely by the chemical reaction process natural decomposition of digest and decompose, then decomposable is calcium hydroxide (Ca(OH) 2), inseparablely to solve as impurity.By powder separating machine, impurity is discharged.Reach the object of purification.2) prevent from surprisingly revealing the environmental pollution caused when producing.A large amount of heat energy and water vapour can be produced, so taken away with digestion machine fly-ash separator because of during its chemical reaction.To reach device interior pressure lower than device external, detection of conveniently windowing, avoid gap leakage.3) heat that produces during chemical reaction is utilized to accelerate to clear up the reaction times, to reach energy-conservation, the object such as reduction of discharging.Because in chemical reaction process, temperature is higher, its reaction times is shorter.So heat energy heat conversion device is returned to digestive organ (2) by water of productive use when extracting the water vapour in its reaction process.Reach energy-conservation, reduced discharging, shortened the object of digestion time.4) level of automation high, without the need to producers.Because whole system adds water, reinforced with production process in all have PLC to complete to weigh, the function such as batching.Therefore whole production line is without the need to manually.Only equipment regular visit need be carried out.And due to PLC impurity estimation with to weigh water distribution (making water complete reaction).The water content of control finished product that can be high, there is no any sewage discharge.5) energy-conservation amplitude is large.Because whole production line is without grinding, fragmentation waits high-energy equipment.Calcium hydroxide (Ca(OH)
2) 97% all can more than 325 order fineness in high temperature Nature creating.Therefore energy consumption reduces greatly.6) accomplish that a kind of design all adapts to the raw material variance of various places, be convenient to normalized production.But there is no design power loss.Digestive organ is the work of inherent regulation power, can be different from material viscosity by feeding size, regulates voluntarily, has reached energy-conservation object.7) the environmental protection policy intention of country is met.Without sewage discharge in a whole set of production line production process, the phenomenons such as exhaust gas emission.Because of configuration dust removal installation, whole production line internal air pressure is reduced to negative pressure, substantially improves production environment, decrease work injury.
figure of description
Fig. 1 is energy-saving and high efficient dry method calcium hydroxide production line overall flow schematic diagram of the present invention;
Fig. 2 digests machine normal operating conditions structural representation in Fig. 1;
Fig. 3 is emptying state structural representation when digesting machine long-term shutdowns in Fig. 1.
Number in the figure, 1 is electron helical burden balance, and 2 is one-level digestion machine, 3 is secondary digestion machine, and 4 is three grades of digestion machines, and 41 for stirring main shaft, 42 is agitating vane, 43 for overflowing dividing plate, and 44 is emptying dividing plate, and 45 is driving mechanism, 46 is Self-aligning bearing, 47 is high specific gravity material, and 48 is low-gravity material, and 5 is digestion machine fly-ash separator; 6 is thermal conversion system, and 7 is water tank, and 8 is powder separating machine, and 81 for selecting powder blower fan, and 82 is adjusting valve, and 9 is powder separating machine fly-ash separator, and 10 is material bin; 11 is work in-process feeding chute, and 12 is conveyor drive, and 13 is funnel chute, and 14 is frequency conversion feedwater water pump, and 15 is Electromagnetic Flow instrument; 16 is worm conveyor, and 17 is work in-process lift technique, and 18 is finished product lift technique, and 19 is slag particle lift technique, and 20 is finished product conveying skewed slot, and 21 is slag particle belt conveyor, and 22 for closing wind subassembly, and 23 is manual three-way turnover panel.
Embodiment
Below in conjunction with preferred embodiment and Figure of description, the invention will be further described, better to understand technical solution of the present invention.
Embodiment 1: a kind of energy-saving and high efficient dry method calcium hydroxide production line, see Fig. 1, comprise material distribution device, slaking apparatus, powder selection device, water source supply device and PLC control system, described material distribution device comprises material bin 10 and electron helical burden balance 1, described electron helical burden balance 1 are connected with PLC control system signal, material bin outlet is communicated with electron helical burden balance 1 entrance through transfer mechanism, and electron helical burden balance 1 export and enter slaking apparatus through conveyor drive 12, funnel chute 13.Electron helical burden balance 1 with while metered volume and the mode of weight information feed back is carried out to PLC control system, PLC control system calculates raw-material purity estimated value according to weight and volume data, material purity deviation is made to the ratio that the adds water adjustment of adaptation.
Described slaking apparatus arranges three digestion machines connected successively, be divided into: one-level digestion machine 2, secondary digestion machine 3 and three grades of digestion machines 4, outlet, the entrance of adjacent digestion machine are communicated with successively, wherein three grades of digestion machines 4 are as cooling storehouse, and one-level, secondary digestion machine is as reaction warehouse, and reaction warehouse mainly does isothermal holding, temperature is raised as far as possible, and add high-temperature-hot-water, accelerate speed of response during digestion, and improve the size distribution of finished product powder.And storehouse major function of lowering the temperature is for cooling, temperature during discharging is controlled below 70 degrees Celsius, with lower than condensation point, condense when preventing from selecting powder and unite.Be specially: one-level digestion machine 2 opening for feed is positioned at funnel chute 13 bottom, be communicated with funnel chute 13 to export, three grades of digestion machine discharge ports connect work in-process lift technique 17 through worm conveyor 16, and work in-process lift technique 17 will stir the work in-process (Ca (OH) generated through slaking apparatus
2) rise to certain altitude laggard enter powder selection device.
Digestion machine fly-ash separator 5 and thermal conversion system 6 are set in described water source supply device, digestion machine fly-ash separator 5 blast inlet is tightly connected through wind conveying pipe road three grades of digestion machine 4 air outlets, digestion machine fly-ash separator 5 air outlet connects thermal conversion system 6 blast inlet, water tank 7 exports and is communicated with thermal conversion system 6 water-in through water supply conduit, thermal conversion system 6 water outlet digests machine 2 water-in through water pump 14 and one-level and is communicated with, described water pump 14 is connected with PLC control system signal, and water pump is frequency conversion feedwater water pump.The heat energy produced when digestion machine reacts by the present embodiment is collected through thermal conversion system 6 and is used for the required mode supplied water of hot digestion machine reaction, and heat energy is returned to slaking silos again.The dangerous pressure that the waste of heat energy and airtight heat energy produces is solved with this.In water supply water route, be provided with Electromagnetic Flow instrument 15 and electric controlled regulating valve door in addition, by PLC compare starting material estimate purity after the machine of adjustment digestion in real time react needed for add discharge.Reach the object controlling finished product water content.
Described powder selection device comprises powder separating machine 8 and powder separating machine fly-ash separator 9, worm conveyor 16 is sealedly connected with in three grades of digestion machine exits, work in-process lift technique 17 is sealedly connected with, by the work in-process (Ca(OH) generated through slaking apparatus process with worm conveyor exit
2) be upwards extracted into and close on powder separating machine entrance location, through closing wind subassembly 22, feeding chute 11 enters powder separating machine.Wherein close wind subassembly 22 and be also heavy wind flap valve, be a kind of valve body can automatically opened by material gravity, only allowed material, do not allow wind.Side, powder separating machine bottom is meal outlet, and opposite side is slag notch, and meal outlet connects finished product conveying skewed slot 20, controls to export finished product after finished product lift technique 18 through manual three-way turnover panel.Powder separating machine slag notch is tightly connected slag particle belt conveyor, and the outlet of slag particle belt conveyor connects slag particle lift technique 19, and slag particle is discharged after being transported to certain altitude.Export at finished product and be all provided with in slag particle delivery conduit and close wind subassembly 22, powder, slag that specifically can be shown in Figure 1 discharge signal.In the present embodiment, powder separating machine 8 air outlet connects powder separating machine fly-ash separator 9 blast inlet, powder separating machine with fly-ash separator 9 discharge port through transfer line, close wind subassembly and connect finished product conveying skewed slot, because powder separating machine cannot sieve for some superfine-materials selecting in powder, these materials will exist always in powder separating machine, one is cause energy dissipation, two is can accumulate in powder separating machine, powder effect is selected in impact, fly-ash separator 9 is connected at powder separating machine 8 air outlet place, ultrafine powder is extracted out from powder separating machine with air-flow, precipitate in air-flow high speed rotating in fly-ash separator, and discharge through discharge port, ultra-fine calcium hydroxide can be discharged as independent finished products separately, also can discharge as finished product with after the mixing of materials that powder separating machine is selected.In addition, the use of fly-ash separator not only can be collected in circulation airduct and be exceeded the material particles that powder separating machine collects fineness, avoid superfine-material to circulate the power dissipation caused always, powder separating machine also can be made inner lower than ambient pressure, when effectively preventing powder separating machine from working, finished product reveals the pollution caused, in order to ensure the environment-friendly type of whole calcium hydroxide production line, above-mentioned all mass transport and equipment work are all in complete air-tight state except fly-ash separator.
Wherein one-level, secondary, three grades of digestion facility body structures are as follows: see Fig. 2, inside establish and stir main shaft 41, stir dislocation on main shaft 41 and be evenly equipped with agitating vane 42, stir main shaft 41 to be in transmission connection with driving mechanism 45, bottom digestion machine cabin, close on discharge port position spilling dividing plate 43 is vertically set, bottom cabin, also leave slag-drip opening, and arrange emptying dividing plate 48 at slag-drip opening place, described emptying dividing plate state is controlled automatically by PLC control system.Driving mechanism comprises motor, step-down gear, frequency transformer, frequency transformer signal input part and being connected with PLC control system output end signal, and motor feed circuit is connected with PLC control system current signal input end signal.Described digestion machine stirs main shaft and changes according to the different moments of torsion of each district material particles, viscosity, after current of electric changes by information feed back to PLC control system, PLC control system adjusts frequency transformer after data being calculated, and then controls motor speed.To realize the object having reached adaptation in real time from the Row sum-equal matrix speed of mainshaft.
Digestion machine working condition is as follows: be continuous pan feeding during work, continuous discharge mode, and principle of work is that driving mechanism drives stirring main shaft, agitating vane low-speed running.Material by upper end pan feeding (CaO), because of in material containing moisture (H
2o), calcium hydroxide (Ca(OH) can be generated under being uniformly mixed of blade
2), because of Ca(OH)
2proportion is lighter.Material level upper strata can be in by nature under the effect of stirring, and there is certain mobility.Because be continuous enter material way, in slaking silos, material level can be walked unhurriedly rising.Until digest completely, material is from spilling dividing plate, and top is overflowed, and enters subordinate's digestion.What do not overflow dividing plate is unreacted material, then in slaking silos, continue stirring reaction.
As shown in Figure 3, slaking silos internal cause starting material are impure, long-term production, when accumulation cannot digest material (non-CaO) in a large number.Now power of motor can remain high, and exceedes specified PLC and arranges threshold values.Main control PLC will open emptying dividing plate.Automatically impurity emptying process is carried out.Or long-term shutdowns need emptying with prevent material in bin harden sclerosis time, also need emptying.
Concrete driving mechanism design concept is as follows: because of various places material add water after viscosity different, raw material particle size is different.The reason that then moment of torsion suffered by main shaft is different, then must cause not mating and waste of power of motor and some reality when designing as got maximum reference value.It is another because moment of torsion and rotating speed are inversely under equal-wattage.Therefore driving mechanism is designed to self-adjusting apparatus.When as comparatively large in material particles during drive shaft, viscosity is higher.When main-shaft torque becomes large, current of electric increases, power increases, after equipment master control plc reading electric current and power calculate, adjust frequency transformer.Enter and reduce rotating speed, raising moment of torsion adjustment modes.When material viscosity is less, digestion rate is very fast, equipment master control PLC can enter and reduce moment of torsion, raising adjustment of rotational speed pattern.Material is fully stirred, and reach with this and mate motor optimum load completely, best power work, avoids energy dissipation.
The present embodiment overall workflow is as follows: start master control room start key, by PLC operating device time delay sequence starting, first operate dust removal installation, more successively from rear to front sequence startup all devices, when operating to electron helical burden balance.In material bin, extract raw material (CaO) by electron helical burden balance 1, feed to slaking apparatus inner.Now start thermal conversion system and water pump, supply generates the use water (H needed for calcium hydroxide
2o), and obtain tap density by weighed weight and volume data in PLC internal calculation, this density ratio standard tap density draws material purity estimated value, and show screen display at PLC, purity is multiplied by the flow that weight draws reaction water thus, PLC makes the ratio that the adds water adjustment of adaptation to material purity deviation, is supplied water to slaking apparatus by the electrically-controlled valve of PLC control.Now starting material (CaO) and water (H
2o) chemical reaction is produced, produce heat and water vapor and generate calcium hydroxide (Ca (OH) 2), the heat produced and water vapour enter hot digestion water in thermal conversion system 6 by digesting after machine fly-ash separator filters, and reach continuous heat production, laser heating, the object added water continuously, the calcium hydroxide (Ca (OH) that slaking apparatus internal-response generates
2), because of starting material (CaO) and calcium hydroxide (Ca (OH) in the whipping process of digestion machine inside
2) proportion difference, calcium hydroxide (Ca (OH)
2) understand the top of natural packing in digestion cabin room, overflowed by the dividing plate on bin top, enter powder separating machine, choose suitable order number by powder separating machine, and be delivered to stockyard.Defective order number is discharged.
Claims (5)
1. an energy-saving and high efficient dry method calcium hydroxide production line, comprise material distribution device, slaking apparatus, powder selection device, water source supply device and PLC control system, it is characterized in that: described material distribution device comprises material bin and Charge Mixture Control part, described Charge Mixture Control part is connected with PLC control system signal, material bin outlet is communicated with Charge Mixture Control part entrance through transfer mechanism, the outlet of Charge Mixture Control part connects slaking apparatus import through transfer mechanism, described slaking apparatus at least arranges three digestion machines connected successively, the outlet of adjacent digestion machine, entrance is communicated with successively, wherein final stage digestion machine is as cooling storehouse, all the other digestion machines are as reaction warehouse, one-level digestion machine inlet capable in reaction warehouse is communicated with material distribution device, final stage digestion machine discharge port as cooling storehouse connects powder selection device through transfer mechanism, digestion machine fly-ash separator and thermal conversion system are set in described water source supply device, digestion machine fly-ash separator blast inlet is tightly connected through wind conveying pipe road final stage digestion machine air outlet, digestion machine fly-ash separator air outlet connects thermal conversion system blast inlet, tank outlet is communicated with thermal conversion system water-in through water supply conduit, thermal conversion system water outlet digests machine water-in through water pump and one-level and is communicated with, described powder selection device comprises powder separating machine and powder separating machine fly-ash separator, described powder separating machine opening for feed is communicated with through transfer mechanism with slaking apparatus discharge port, powder separating machine discharge port is divided into meal outlet and slag notch, described powder separating machine meal outlet connects finished product output mechanism, powder separating machine slag notch connects slag particle export structure, air outlet of powder concentrator connects powder separating machine fly-ash separator blast inlet, and powder separating machine fly-ash separator discharge port is communicated with finished product output mechanism through transfer mechanism, control valve, described said apparatus and transfer mechanism are the state of being tightly connected except fly-ash separator.
2. energy-saving and high efficient dry method calcium hydroxide production line according to claim 1, it is characterized in that: in the digestion machine in described above-mentioned slaking apparatus, stirring main shaft is set, stir dislocation on main shaft and be evenly equipped with agitating vane, stirring main shaft and driving mechanism are in transmission connection, bottom digestion machine cabin, close on discharge port position spilling dividing plate is vertically set, bottom cabin, also leave slag-drip opening, and arrange emptying dividing plate at slag-drip opening place, described emptying dividing plate state is controlled automatically by PLC control system.
3. energy-saving and high efficient dry method calcium hydroxide production line according to claim 2, it is characterized in that: described digestion machine driving mechanism is designed to self-adjusting apparatus, be specially: comprise motor, step-down gear, frequency transformer, frequency transformer signal input part and being connected with PLC control system output end signal, motor feed circuit is connected with PLC control system current signal input end signal, described digestion machine stirs main shaft according to each district material particles, the different moments of torsion of viscosity change, after current of electric changes by information feed back to PLC control system, PLC control system adjusts frequency transformer after data being calculated, and then control motor speed.
4. energy-saving and high efficient dry method calcium hydroxide production line according to claim 1, it is characterized in that: described Charge Mixture Control part is electron helical burden balance, described electron helical burden balance with while metered volume and the mode of weight information feed back is carried out to PLC control system, PLC control system calculates raw-material purity estimated value according to weight and volume data, material purity deviation is made to the ratio that the adds water adjustment of adaptation.
5. energy-saving and high efficient dry method calcium hydroxide production line according to claim 4, is characterized in that: be provided with Electromagnetic Flow instrument and electric controlled regulating valve door in the water supply water route of water source supply device and slaking apparatus.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217973A (en) * | 2015-09-24 | 2016-01-06 | 湘潭志成矿业有限责任公司 | The two-stage slaking apparatus that calcium hydroxide is produced |
| CN105271840A (en) * | 2015-09-24 | 2016-01-27 | 湘潭志成矿业有限责任公司 | Calcium hydroxide continuation production process and dedicated production line |
| CN106145715A (en) * | 2016-08-29 | 2016-11-23 | 绵竹市拱星氧化钙厂 | Energy-saving high-temperature burnt lime slaking device |
| CN109437603A (en) * | 2018-12-27 | 2019-03-08 | 江苏省建筑材料研究设计院有限公司 | A kind of system of full negative pressure calcium oxide digestion production calcium hydroxide |
| CN110885093A (en) * | 2019-12-23 | 2020-03-17 | 桂林鸿程矿山设备制造有限责任公司 | Intelligent control system for producing calcium hydroxide |
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| CN105271840A (en) * | 2015-09-24 | 2016-01-27 | 湘潭志成矿业有限责任公司 | Calcium hydroxide continuation production process and dedicated production line |
| CN105271840B (en) * | 2015-09-24 | 2018-01-09 | 湘潭志成矿业有限责任公司 | Calcium hydroxide continues production technology and special production line |
| CN105217973A (en) * | 2015-09-24 | 2016-01-06 | 湘潭志成矿业有限责任公司 | The two-stage slaking apparatus that calcium hydroxide is produced |
| CN106145715A (en) * | 2016-08-29 | 2016-11-23 | 绵竹市拱星氧化钙厂 | Energy-saving high-temperature burnt lime slaking device |
| CN106145715B (en) * | 2016-08-29 | 2018-07-13 | 绵竹市拱星氧化钙厂 | Energy-saving high-temperature burnt lime slaking device |
| CN109437603B (en) * | 2018-12-27 | 2023-11-14 | 江苏省建筑材料研究设计院有限公司 | System for full negative pressure calcium oxide slakes and produces calcium hydroxide |
| CN109437603A (en) * | 2018-12-27 | 2019-03-08 | 江苏省建筑材料研究设计院有限公司 | A kind of system of full negative pressure calcium oxide digestion production calcium hydroxide |
| CN110885093A (en) * | 2019-12-23 | 2020-03-17 | 桂林鸿程矿山设备制造有限责任公司 | Intelligent control system for producing calcium hydroxide |
| CN112551920A (en) * | 2020-10-27 | 2021-03-26 | 莱歇研磨机械制造(上海)有限公司 | Modular high-temperature material digestion system |
| CN112374775A (en) * | 2020-12-08 | 2021-02-19 | 襄阳聚曐矿业有限公司 | Quick lime efficient digestion device and digestion method |
| CN113772705A (en) * | 2021-11-11 | 2021-12-10 | 河南圣恒智能装备科技有限公司 | Production system and production process for preparing calcium hydroxide by dewatering carbide slag |
| CN114985097A (en) * | 2022-06-08 | 2022-09-02 | 包头地平线环保科技有限公司 | Efficient carbide slag waste-free comprehensive utilization process |
| CN114985097B (en) * | 2022-06-08 | 2023-10-17 | 包头地平线环保科技有限公司 | Process for comprehensively utilizing high-efficiency carbide slag without waste |
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Effective date of registration: 20180308 Address after: 471000 Luoyang Fengli Industrial Park, Henan Province Patentee after: Luoyang calcium Feng Industry and Trade Co., Ltd. Address before: 471000 group 1, No. 64, Gucheng village, Luolong District, Luoyang, Henan Patentee before: Yue Junfeng |