CN201326001Y - Closed desulphurization and dissociation reaction vessel and system thereof - Google Patents
Closed desulphurization and dissociation reaction vessel and system thereof Download PDFInfo
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- CN201326001Y CN201326001Y CNU2008202038427U CN200820203842U CN201326001Y CN 201326001 Y CN201326001 Y CN 201326001Y CN U2008202038427 U CNU2008202038427 U CN U2008202038427U CN 200820203842 U CN200820203842 U CN 200820203842U CN 201326001 Y CN201326001 Y CN 201326001Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a closed desulphurization and dissociation reaction vessel, comprising a desulphurization reaction pot, a stirring mechanism, a feeding hole and discharging holes. The feeding hole and the discharging holes are respectively arranged at two axial ends of the desulphurization reaction pot; the stirring mechanism comprises a stirrer and a stirrer driving device; and the discharging holes consist of a main discharging hole and an auxiliary discharging hole. The closed desulphurization and dissociation reaction vessel also comprises a heating device, and the heating device consists of a heater and a temperature control system; the desulphurization reaction pot is a horizontal rotary cylinder device mainly comprising a horizontal cylinder, a rotary cylinder supporting mechanism and a rotary cylinder driving mechanism; the stirrer is driven by the stirrer driving device to stir lead plaster in the horizontal cylinder; the desulphurized lead plaster is discharged from the main discharging hole; and the byproduct of thermal decomposition is discharged from the auxiliary discharging hole. The utility model can improve the desulphurization effect of the lead plaster so as to be beneficial to the stable quality of the lead plaster processed in the subsequent electrolyzation process and can also markedly reduce the desulphurization cost and improve the production efficiency.
Description
Technical field
The utility model relates to a kind of dissociation reaction device and system thereof, specifically is meant a kind of enclosed dissociation reactor and system thereof.
Background technology
In the plumbous recovery technology of existing waste and old lead acid accumulator, full wet method electrolytic reduction technology, fire reduction technology and wet method-pyrogenic process combination technology are arranged, and desulfurization is the important step in all waste and old lead acid accumulators lead recovery technologies.Sulfur method has pre-sulfur method and synchronized desulfuring method.
It is to adopt the synchronized desulfuring method of reducing that plumbous recovery of waste and old lead acid accumulator more than 90% arranged at present.Direct mixed smelting desulfurization, reduction as pyrogenic process reverberatory furnace (grid lead and lead plaster); Wet method solid phase electrolysis direct chemical displacement desulfurization, reduction etc.The mixed smelting of reverberatory furnace (grid lead and lead plaster) need add a large amount of iron filings, go back raw coal carries out desulfurization and reduction, and the sulphur in reductive agent and the raw material, oxygen etc. become waste residue; The solid phase electrolytic reduction, because of nothing is carried out pre-desulfurization, in follow-up electrolytic reduction operation, the sulphur in the described waste material can consume NaOH, generates NaSO
4, influence concentration of electrolyte, cause power consumption big, electrolytic efficiency reduces, and causes need regularly taking off the sodium salt operation in electrolytic process, replenishes NaOH simultaneously again, can increase cost greatly.
Pre-doctor treatment is advanced processing method, and technological process adopts the sulphur in the raw material displacement or thermolysis process to separate the recovery byproduct earlier, generates plumbous oxide and reduces, greatly improves the environment protection treating effect.
Preconditioning technique mainly adopts normal temperature chemical replacement method at present, and technological process adopts Na
2CO
3Or the sulphur in the NaOH displacement raw material becomes Na
2SO
4Byproduct need to consume a large amount of expensive displacer materials and is replaced into the byproduct sulfite of low value, the cost recovery height, be worth low, market utilize the space little, can not recycle in store battery production.
This patent utility model is that the thermolysis dissociating method carries out desulfurization, and technological process need not to add the displacer material and adopts a small amount of heat energy to carry out thermolysis, the SO that dissociates out
3After purifying, absorb relieving haperacidity by sulfuric acid (scrap battery is brought diluted acid into).Desulphurization cost is low, recycle is effective, and output sulfuric acid reusable edible is in store battery production.
Described desulfurization process is the compound waste material of the lead in the waste and old lead acid accumulator that reclaims, promptly lead plaster by sweetener carry out desulfurization, deoxidation becomes the simple substance lead compound based on PbO, obtains electrolytic lead for use in the follow-up wet method electrolytic reduction that carries out.
The structure of the desulphurization reaction jar of normal temperature chemical replacement method as shown in Figure 1, it comprises driver 101, supporting plate 102, stir shaft 103, tank body 104, stirring rake 105 and advancing, discharge port etc., retort is a vertical structure, stir shaft vertically is placed on the tank body axis, material is contained in the tank body 104, driver 101 supports are on supporting plate 102, stir shaft 103 rotates under the drive of driver 101, the stirring rake 105 that drive is installed in stir shaft 103 lower ends rotates the stirring material, make a jar interior material that the chemical replacement reaction take place at normal temperatures, thereby reach the desulfurization purpose.
The structure of the reverberatory furnace of high-temperature iron scurf sulphur removal method as shown in Figure 2, it comprises combustion chamber 201, feeding mouth 202, slag notch 203, plumbous mouthful 204 of fluid, refractory brick thermal insulation layer 205 and plumbous liquid 206, wherein the combustion chamber also has the tail gas relief outlet, the lead plaster material carries out the high temperature sulphur removal in the combustion chamber, reach the desulfurization purpose.
Above-mentioned two kinds of devices all exist and consume a large amount of expensive displacer materials and make the high and low defective of production efficiency of desulphurization cost: (1) pre-desulfurization technology consumes yellow soda ash or sodium hydroxide and is replaced into byproduct sulfite, and cost recovery height, value are low, market utilizes the space little; (2) the reverberatory furnace doctor treatment of high-temperature iron scurf sulphur removal consumes raw material such as a large amount of iron filings and output becomes the slag of solid danger refuse and fail the metathetical sulfur dioxide gas, causes serious environmental to pollute and the wasting of resources; The diluted acid that sulphur in the lead plaster and store battery are brought into also fails to realize the most effective recycle.
The utility model content
The purpose of this utility model provides a kind of closed desulfurization dissociation reaction device and system thereof, this closed desulfurization dissociation reaction device is made according to lead plaster thermolysis desulfurization principle, not only can improve the sweetening effectiveness of lead plaster, be beneficial to the steady quality of follow-up electrowinning process, and can also reduce desulphurization cost greatly, enhance productivity.
Above-mentioned purpose of the present utility model realizes by following technical solution: a kind of closed desulfurization dissociation reaction device, comprise the desulphurization reaction tank body, stirring mechanism and lay respectively at advancing of the axial both ends of tank body, discharge port, wherein, stirring mechanism comprises agitator and stirs transmission rig, discharge port comprises major ingredient outlet and secondary material outlet, it is characterized in that: this reactor also comprises heating unit, described heating unit comprises well heater and temperature control system, described desulphurization reaction tank body is rotating revolving horizontal drum device, mainly by revolving horizontal drum, rotating cylinder supporting mechanism and rotating cylinder transmission rig are formed, wherein, described rotating cylinder is that horizontal mode is installed on the described rotating cylinder supporting mechanism with its pivot center, described agitator is installed in the rotating cylinder along the pivot center direction of described rotating cylinder, described rotating cylinder and agitator link to each other with separately transmission rig respectively, rotate under transmission rig drive separately, agitator stirs the lead plaster material in the rotating cylinder under the drive of its transmission rig; Described heating unit is arranged on the periphery of described rotating cylinder, by drum wall being heated indirectly to the heating of the lead plaster in the rotating cylinder, so that make lead plaster carry out the thermal decomposition and reduction desulfurization; Lead plaster after the desulfurization exports output from major ingredient, and the byproduct of thermolysis output is then from pair material outlet output.
Closed desulfurization dissociation reaction device of the present utility model adopts above-mentioned airtight and external heating mode, be subjected to the reactive force of two objects in the process that the lead plaster material moves in reactor, the reactive force of one of them object is rotating cylinder tilting force to lead plaster in rotation process, if the shaft axis of rotating cylinder is downward-sloping slightly to discharge port direction and sea line from the opening for feed of rotating cylinder, then the rotation of rotating cylinder also has axial carrying capacity to material, and material is moved to the discharge port direction when being reversed; The reactive force of another object is that agitator applies whipping force to the material in the rotating cylinder in rotation process, have shaft flow structure as agitator and then the material in the rotating cylinder is also had axial carrying capacity, make material moving axially along rotating cylinder, the lead plaster material is under the acting in conjunction of above-mentioned two object reactive forces, can in rotating cylinder, ceaselessly seethe and move, even can be the suspension mobile status, thereby realize the lead plaster thermally equivalent, avoid bonding, reach the drying of both being convenient to the lead plaster material, can make dried lead plaster fully dissociate the purpose of high-quality and high-efficiency desulfurization again.
Closed desulfurization dissociation reaction device in the desulfurization of the utility model lead plaster is to make according to the principle of lead plaster thermal decomposition and reduction desulfurization, and the reaction equation of its thermal decomposition and reduction is as follows:
PbSO
4→PbO+SO
3 【a】
PbO
2→PbO+0.5O
2 【b】
From above-mentioned [a] and [b] reaction formula as seen, lead plaster material in the rotating cylinder is reaching under the situation of temperature of reaction, need not to add any reductibility raw materials such as NaOH, Fe bits, just can realize the purpose of desulfurization, deoxidation, generate the granulous yellow lead oxide, go back output byproduct SO simultaneously
3Gas, and SO
3The gas concentration height can generate the vitriol oil with sulfuric acid reaction, becomes the raw material that lead acid cell is produced that is applied to capable of circulation, and therefore, the utility model can be realized the cleaner production of the discharging of lead plaster desulfurization no waste, resource circulation utilization.
Agitator described in the utility model can adopt screw shaft structure, both can realize the stirring to material, can realize the conveying to material again; Also can adopt the frame mode of stir shaft and paddle, a plurality of paddles are set on the described stir shaft vertically, make and obtain the upset stirring the process of lead plaster material from the rotating cylinder opening for feed to discharge port incessantly.
Described paddle adopts has the paddle structure of agitating function separately, perhaps have simultaneously stir and the paddle structure of feeding function all can, as blade wheel structure, shaped as frame blade structure does not have a propeller arrangement etc.; Can also be the combination in twos in the above structure: paddle as described adopts shaped as frame paddle wheel structure, the blade that is impeller adopts radially overhanging shaped as frame blade, each impeller has and has 2 shaped as frame blades at least, also can have a plurality of blades such as 3 or 4 or 5 or 6, described blade is along the wheel shaft circumference uniform distribution of impeller, and a plurality of shaped as frame paddle wheels are installed in successively on the described stir shaft along axially (X to) of stir shaft and constitute agitator.
The utility model can also be done following improvement: the agitator of above-mentioned employing shaped as frame paddle wheel, the shaped as frame paddle wheel that is installed on its stir shaft is closely arranged, and the blade on the adjacent impeller is in staggered distribution mutually, be that blade on the adjacent impeller distributes with a staggered angle α on the periphery of described stir shaft successively clockwise or counterclockwise, described staggered angle α is an acute angle.The structure that adopts described adjacent impeller blade to stagger, can make agitator in rotation process, the volution that not only can utilize staggered blade to form plays the effect of carrying the lead plaster material, and can be so that the impeller blade on the stir shaft can not run into the material at drum wall place simultaneously, reduce the stirring resistance and the vibration of stir shaft, all adjacent impeller blades are general to adopt identical staggered angle to be advisable, so that guarantee that mass transport is even, staggered angle is general preferred in 5～30 ° scope.
The utility model can further be done following improvement: be provided with on described impeller blade outer end edges by hardness and be lower than the scraping blade that the material of blade body is made, be used to sweep the material of scraping between blade and described rotating cylinder inwall, avoid material to bond on drum wall, described scraping blade preferably and have the running clearance δ of 1～2mm between the inwall of described rotating cylinder.It is to use as the wearing detail of blade that described scraping blade is set on the blade outer end edges, because impeller is to sweep the material of scraping on the drum wall by scraping blade, it is the position that impeller is subjected to the frictional force maximum, very easily wearing and tearing, after may wear to a certain degree, scraping blade can change, but thereby guarantee the impeller bodies life-time service, avoid because the situation that the wearing and tearing of blade end limit cause needs to change whole impeller occurs, not only help improving the work-ing life of impeller, and can reduce the maintenance cost of impeller and the maintenance time of equipment greatly.
The utility model can also be done following improvement: be provided with stiffening web between two adjacent on described impeller blades, be used to strengthen the rigidity and the impeller whole rigidity of shaped as frame blade.
The utility model can also further be done following improvement: be the technology that satisfies the lead plaster desulphurization reaction and the requirement of production efficiency, rotating cylinder length is generally all longer, be 2～5 meters, in this case, stir shaft adopts one-piece construction, can exist and be difficult to machine-shaping and the high problem of maintenance cost, because when the stir shaft part is damaged, will cause whole axle to be scrapped, waste material not only, make maintenance cost high, and maintenance work takes time and effort, be unfavorable for recovering as early as possible normal production.For this reason, stir shaft described in the utility model can adopt split type axle construction, stir shaft is made up of a plurality of unit shaft and connecting shaft spare, connect and compose the stir shaft that passes through whole rotating cylinder by a connecting shaft spare between every adjacent two unit shaft, the handling ease and the cost of stir shaft are reduced, and making its maintenance more easy and convenient, maintenance cost and time are able to obvious minimizing.
The utility model is for guaranteeing that split type stir shaft has favorable rigidity, has advantages of higher stability when making it to rotate, the place is provided with mounting flange corresponding to the connecting shaft spare on the stir shaft, described mounting flange gabarit is installed on the described rotating cylinder inwall, its centre hole support is on the connecting shaft spare between per two unit shaft of stir shaft, and its quantity and described coupling shaft quantity equate.
Rotating cylinder supporting mechanism described in the utility model is made up of a pair of rotating cylinder supporting that is separately positioned on the outside two ends of rotating cylinder, each rotating cylinder supporting is made up of the bearing of roller and support roller again, the both sides of every pair of described rotating cylinder of rotating cylinder supporting symmetric support, the axis of described roller is parallel with the shaft axis of rotating cylinder, like this, described rotating cylinder supporting mechanism not only can support revolving horizontal drum, and can also allow rotating cylinder rotate in described supporting.
The utility model stirs the effect of seething in order to improve material, guarantees that the material in the rotating cylinder is suspended state all the time, can make described rotating cylinder and described agitator do backward rotation.Well heater in the heating unit described in the utility model can be formed by combustion chamber and interior thermal medium thereof with the thermal medium import and export that the combustion chamber provides the thermal source of thermal medium to be communicated with, described combustion chamber is for around the rotating cylinder gabarit and form the pipeline of an annular closed at both ends with it, and thermal medium is by being arranged on thermal medium import and export on the described duct wall and circulate in this pipeline and conducting heat to drum wall.For energy-saving and cost-reducing, the thermal insulation layer that can be made by the heat-insulation and heat-preservation material in the combustion chamber outer setting plays heat-insulation and heat-preservation and thermal radiation effect.The temperature range of desulfurization the best is in 800～820 ℃ of scopes, and therefore described thermal medium is a burning hot gas.
The further innovative approach of the utility model: in order further to improve the sweetening effectiveness of lead plaster, can the lead plaster material that enter closed desulfurization dissociation reaction device is dry in advance, be that the utility model also provides a kind of desulfurization dissociation reaction system simultaneously, this system also comprises drying installation and described closed desulfurization dissociation reaction device, the discharge port of described drying installation links to each other with the opening for feed of described desulfurization dissociation reaction device, the lead plaster material is sent into earlier and is carried out drying in the drying installation, enter desulfurization dissociation reaction device then and carry out desulfurization, output PbO and SO
3Gas.Described drying installation can adopt drying plant of the prior art, also can adopt improved drying plant.
Modified version drying plant described in the utility model, it is basis at horizontal stirring drying installation, adopt the circulating line formula thermal fluid heater identical with described desulfurization dissociation reaction device, drying cylinder in the parcel drying installation, for the waste heat that utilizes other production links to produce provides enforceable condition, so that realize the green production of energy-saving and emission-reduction.
Compared with prior art, the utlity model has following remarkable advantage:
(1) enclosed dissociation reactor of the present utility model is to make according to the principle of lead plaster thermal decomposition and reduction desulfurization, adopt airtight and external heating mode, rely on rotating cylinder heat transfer indirect heating material, avoided direct burning heating to cause local excess temperature to form bonding, decomposing the phenomenon that is difficult to carry out takes place, also avoid direct burning, heating to produce a large amount of combustion exhaust simultaneously and cause the phenomenon of contaminate environment to take place, not only when helping improving the sweetening effectiveness of lead plaster, reduce desulphurization cost greatly, but also help environmental protection, realize the discharging of lead plaster desulfurization no waste, the cleaner production of resource circulation utilization.
(2) sulphur trioxide that produces in the thermal degradation process of closed desulfurization dissociation reaction device of the present utility model can all be recycled, and becomes the relieving haperacidity raw material, keeps the concentration of the sulphur trioxide that is decomposed to greatest extent, reaches the recycle of sulphur trioxide.
(3) closed desulfurization dissociation reaction device of the present utility model, be subjected to the reactive force of two objects in the process that the lead plaster material moves in reactor: the turning force in the first rotating cylinder rotation process, this turning force can make material seethe commentaries on classics up and down, prevent material because of accumulation rotating cylinder bottom under the action of gravity cause these lead plasters be heated irregular reaction uneven be difficult to again carry form the phenomenon of carrying the dead angle and take place; It two is the whipping force that in rotation process material applied of agitator or the carrying capacity that applies simultaneously in addition, the lead plaster material is under the acting in conjunction of described two object reactive forces, can in rotating cylinder, ceaselessly seethe and move, even can be the suspension mobile status, as adopt rotating cylinder and agitator switched in opposite, its suspension effect is better, so that reach lead plaster material thermally equivalent, avoid bonding, both be convenient to the drying of lead plaster material, dried lead plaster is fully dissociated, realize lead plaster desulfurization dissociative best effect, and enhance productivity.
(4) closed desulfurization dissociation reaction device of the present utility model, when agitator adopts shaped as frame paddle wheel structure, adjacent impeller blade is in staggered distribution, can make agitator in rotation process, the volution that not only can utilize staggered blade to form plays the effect of carrying the lead plaster material, and can reduce the stirring resistance and the vibration of stir shaft so that the impeller on the stir shaft can not run into the lead plaster material at drum wall place simultaneously.
(5) the utility model further is provided as the scraping blade of wearing detail at impeller blade outer end edges place, can when may wear to a certain degree, it change, help guaranteeing the life-time service of impeller bodies, avoid because the situation that the wearing and tearing of blade end limit cause needs to change whole impeller occurs, not only can improve the work-ing life of impeller, and can reduce the maintenance cost of impeller and the maintenance time of equipment greatly.
(6) well heater in the heating unit described in the utility model and drying installation can adopt the type of heating of combustion chamber and thermal medium, the heating of carrying out this sulfur removal technology for the waste heat that produces in other operations of utilizing the plumbous reclaiming technology of waste and old lead acid accumulator provides condition, help realizing saving energy and reduce the cost comprehensive utilization of resources and cleaner production.
The closed desulfurization dissociation reaction system that the utility model provides simultaneously is communicated with a closed desulfurization dissociation reaction device by a drying installation and combines, the former is used for the drying and dehydrating of lead plaster material, the latter is used for desulfurization, deoxidation, the dry lead plaster material of going ahead of the rest, and then enter closed desulfurization dissociation reaction device and carry out desulfurization, improve the sweetening effectiveness of lead plaster and the byproduct SO of production efficiency and generation thereof
3Concentration.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further details.
Fig. 1 is the one-piece construction synoptic diagram of desulphurization reaction jar in the prior art;
Fig. 2 is the one-piece construction synoptic diagram of reflection smelting furnace in the prior art;
Fig. 3 is the one-piece construction synoptic diagram of the utility model enclosed dissociation reactor;
Fig. 3 A is that the A of Fig. 3 is to enlarged view;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is the C-C sectional view of Fig. 3;
Fig. 6 is the local structure synoptic diagram of the utility model enclosed dissociation reactor;
Fig. 7 is the perspective view of mounting flange in the utility model enclosed dissociation reactor;
Fig. 8 is the perspective view of thumb wheel in the utility model enclosed dissociation reactor;
Fig. 9 is the local structure synoptic diagram of thumb wheel of the present utility model, shows the position relation of dialling the palm and scraping blade;
Figure 10 is the another structural representation of thumb wheel in the utility model;
Figure 11 is the another structural representation of thumb wheel in the utility model;
Figure 12 is the another structural representation of thumb wheel in the utility model;
Figure 13 is the another structural representation of thumb wheel in the utility model;
Figure 14 is the another structural representation of stir shaft in the utility model;
Figure 15 is the one-piece construction synoptic diagram of the utility model dissociation reaction system, has omitted the supporting mechanism of drying installation and dissociation reaction device.
Embodiment
As Fig. 3 to a kind of enclosed dissociation reactor shown in Figure 9, it comprises the desulphurization reaction tank body, stirring mechanism and the opening for feed 1 that lays respectively at the axial both ends of tank body, discharge port, wherein, stirring mechanism comprises agitator and stirs transmission rig, discharge port comprises major ingredient outlet 6 and secondary material outlet 14, this dissociation reaction device also comprises heating unit, heating unit comprises well heater 9 and temperature control system, the desulphurization reaction tank body is rotating revolving horizontal drum device, mainly by revolving horizontal drum 4, rotating cylinder supporting mechanism and rotating cylinder transmission rig are formed, wherein, rotating cylinder 4 is that horizontal mode is installed on the rotating cylinder supporting mechanism with its pivot center, the pivot center direction of the clockwise tube 4 of agitator is installed in the rotating cylinder, rotating cylinder 4 and agitator link to each other with separately transmission rig respectively, rotate under transmission rig drive separately, agitator stirs the lead plaster material in the rotating cylinder 4 under the drive of its transmission rig; Heating unit is arranged on the periphery of rotating cylinder, by drum wall being heated indirectly to the heating of the lead plaster in the rotating cylinder, so that make lead plaster carry out the thermal decomposition and reduction desulfurization.
Rotating cylinder 4 is positioned at well heater 9, rotating cylinder 4 two ends are the going out of taper, pan feeding awl tube, opening for feed 1 links to each other with pan feeding awl tube, the other end of opening for feed 1 links to each other with screw feeding device 16, reclaiming cone tube sidewall has drop material hole 4a, lead plaster after will dissociating by this drop material hole 4a drains in the major ingredient outlet 6, stir axial organ the lead plaster mass transport is carried out the desulfurization disassociation in the enclosed dissociation reactor, lead plaster after the desulfurization exports 6 outputs from major ingredient, and byproducts such as the sulphur trioxide of thermolysis output and water vapour then export 14 outputs from the pair material.
Agitator in the utility model adopts the frame mode of stir shaft 3 and paddle 5 combinations, a plurality of paddles 5 are set on the stir shaft 3 vertically, the pivot center direction of stir shaft 3 clockwise tubes 4 is installed in the center of rotating cylinder 4, it is split type axle construction, form by a plurality of unit shaft 3b and a plurality of connecting shaft spare 3a, connect and compose the stir shaft 3 that passes through whole rotating cylinder 4 by a connecting shaft spare 3a between every adjacent two unit shaft 3b, stir shaft 3 supports are on the stir shaft supporting mechanism, rotating cylinder 4 and stir shaft 3 link to each other with separately transmission rig respectively, backward rotation under transmission rig drive separately, make the ceaselessly upset in rotating cylinder 4 of lead plaster material, stir, be in half suspended state always.
The stir shaft supporting mechanism is made up of stir shaft steady bearing 11 and mounting flange 8, the end, two ends of stir shaft steady bearing 11 support stir shafts 3, mounting flange 8 gabarits are installed on rotating cylinder 4 inwalls, its centre hole support is on the connecting shaft spare 3a between per two unit shaft of stir shaft, its quantity and connecting shaft spare 3a quantity equate, the stir shaft transmission rig is made up of stir shaft driving chain wheel 12 and stir shaft driving motor (not shown), stir shaft links to each other with stir shaft driving chain wheel 12, stir shaft driving chain wheel 12 links to each other with the stir shaft driving motor, drive the transmission rig of the stir shaft transmission rig of agitator just in the utility model by the stir shaft driving motor.
Each blade 5b is arranged at intervals with three scraping blade 5d on the outer face adjacent with rotating cylinder 4 inwalls, the hardness of scraping blade 5d is lower than the hardness of blade body, scraping blade 5d has 10 ° slanted angle β with respect to the axis of blade 5b, and has the running clearance δ of 2mm between the inwall of scraping blade 5d and rotating cylinder 4.The axis of scraping blade 5d and blade 5b has slanted angle β, plays the effect of spiral thrust, and material movement is played a role in promoting, and the lead plaster material every bit of rotating cylinder 4 bottoms is all scraped obtained.
The rotating cylinder supporting mechanism is made up of a pair of rotating cylinder pedestal bearing 7 that is arranged on rotating cylinder 4 two ends, each rotating cylinder supporting 7 is made up of the bearing of roller and support roller again, every pair of rotating cylinder supports the both sides of 7 symmetric support rotating cylinders, the axis of roller is parallel with the shaft axis of rotating cylinder, rotating cylinder 4 supports are on rotating cylinder pedestal bearing 7, the rotating cylinder transmission rig is made up of rotating cylinder driving chain wheel 13 and rotating cylinder driving motor (not shown), rotating cylinder 4 links to each other with rotating cylinder driving chain wheel 13, rotating cylinder driving chain wheel 13 links to each other with the rotating cylinder driving motor, is driven by the rotating cylinder driving motor.
Dissociation reaction device of the present utility model in the course of the work, well heater is fixed, rotating cylinder rotates under the rotating cylinder transmission rig drives, make the material thermally equivalent in the rotating cylinder, simultaneously, stir shaft makes the material in the rotating cylinder not stop to stir in rotating cylinder under the stir shaft transmission rig drives and the rotating cylinder backward rotation, be in half suspended state, realize the desulfurization disassociation of lead plaster.
Wherein, the paddle in the utility model also can adopt structure shown in Figure 10, and promptly paddle 5 only is made up of an axle sleeve 5a and three blade 5b, does not adopt stiffening web.
Blade in the paddle of the present utility model also can adopt plate shape blade except adopting the shaped as frame blade, and promptly blade is tabular, perhaps adopts the blade of check board shape.
Stir shaft in the utility model also can adopt axle construction as shown in figure 14, i.e. stir shaft 3 ' employing integrated shaft structure, and the streamlined spirane structure of its paddle 5 ' adopt, paddle 5 ' be fixedly mounted on stir shaft 3 ' on.
Dissociation reaction device of the present utility model can constitute desulfurization dissociation reaction system together with drying installation, as shown in figure 15, the opening for feed of drying installation 15 links to each other with screw feeding device 16, its discharge port links to each other with the opening for feed of desulfurization dissociation reaction device, top also has water vapour relief outlet 15a, and the lead plaster material is sent into earlier and carried out drying in the drying installation, and water vapour is discharged from water vapour relief outlet 15a, dried lead plaster enters desulfurization dissociation reaction device then and carries out the desulfurization dissociation reaction, output PbO and SO
3Gas.
Drying installation 15 of the present utility model is the bases at horizontal stirring drying installation, adopt the circulating line formula thermal fluid heater identical with the utility model desulfurization dissociation reaction device, drying cylinder in the parcel drying installation, for the waste heat that utilizes other production links to produce provides enforceable condition, so that realize the green production of energy-saving and emission-reduction.
Drying installation and dissociation reaction device are independent respectively, utilize the using waste heat from tail gas of thermal dissociation reactor to enter in the drying installation of lower temperature and dewater, and reach the energy-saving effect of UTILIZATION OF VESIDUAL HEAT IN.
Above-mentioned drying installation also can adopt general drying installation, or directly adopts baking oven that the lead plaster material is cured, thereby reaches the dehydration purpose.The dehydration link is the pre-treatment link of lead plaster desulfurization, and the lead plaster after dehydration is transported to and carries out desulfurization, deoxidation treatment in the dissociation reaction device.
In the utility model, agitator is in rotating process, what the lead plaster material on real and the rotating cylinder inwall took place to swipe is scraping blade, scraping blade has slanted angle with respect to blade-span axis, material movement is played the pushing effect of certain spiral thrust, scraping blade on the same blade is staggeredly arranged, and overlaps again, guarantees that the lead plaster material every bit of rotating cylinder bottom can both scrape.
Slanted angle β in 10～30 ° of scopes all can, preferred range is 15～25 °, the running clearance δ between scraping blade and the rotating cylinder inwall can not be excessive or too small, running clearance is excessive, scraping blade is difficult to scrape the material on the drum wall, causes the material bonding on the barrel; Running clearance is too small, and the resistance that scraping blade is subjected to when scraping the material of getting on the barrel is bigger, damages scraping blade easily, and the preferred range of running clearance δ is between 1～2mm.
Claims (13)
1. closed desulfurization dissociation reaction device, comprise the desulphurization reaction tank body, stirring mechanism and lay respectively at advancing of the axial both ends of tank body, discharge port, wherein, stirring mechanism comprises agitator and agitator transmission rig, discharge port comprises major ingredient outlet and secondary material outlet, it is characterized in that: described reactor also comprises heating unit, described heating unit comprises well heater and temperature control system, described desulphurization reaction tank body is rotating revolving horizontal drum device, by revolving horizontal drum, rotating cylinder supporting mechanism and rotating cylinder transmission rig are formed, wherein, described rotating cylinder is that horizontal mode is installed on the described rotating cylinder supporting mechanism with its pivot center, described agitator is installed in the rotating cylinder along the pivot center direction of described rotating cylinder, described rotating cylinder and agitator link to each other with separately transmission rig respectively, rotate under transmission rig drive separately, agitator stirs the lead plaster material in the rotating cylinder under the drive of its transmission rig; Described heating unit is arranged on the periphery of described rotating cylinder.
2. a kind of closed desulfurization dissociation reaction device according to claim 1 is characterized in that: described agitator adopts the frame mode of stir shaft and paddle, and a plurality of paddles are set on the described stir shaft vertically.
3. a kind of closed desulfurization dissociation reaction device according to claim 2, it is characterized in that: described paddle adopts shaped as frame paddle wheel structure, the blade that is impeller adopts radially overhanging shaped as frame blade, each impeller has and has 2 shaped as frame blades at least, described blade is along the wheel shaft circumference uniform distribution of impeller, and a plurality of shaped as frame paddle wheels are installed in successively on the described stir shaft along axially (X to) of stir shaft and constitute agitator.
4. a kind of closed desulfurization dissociation reaction device according to claim 3, it is characterized in that: the described shaped as frame paddle wheel that is installed on the stir shaft is closely arranged, and the blade on the adjacent impeller is in staggered distribution mutually, be that blade on the adjacent impeller distributes with a staggered angle α on the periphery of described stir shaft successively clockwise or counterclockwise, described staggered angle α is an acute angle.
5. a kind of closed desulfurization dissociation reaction device according to claim 4, it is characterized in that: described impeller blade outer end edges is provided with scraping blade, has the running clearance δ of 1～2mm between the inwall of described scraping blade and described rotating cylinder.
6. a kind of closed desulfurization dissociation reaction device according to claim 5 is characterized in that: be provided with stiffening web between two adjacent on described impeller blades, be used to strengthen the rigidity and the impeller whole rigidity of shaped as frame blade.
7. a kind of closed desulfurization dissociation reaction device according to claim 1, it is characterized in that: described stir shaft adopts split type axle construction, stir shaft is made up of a plurality of unit shaft and connecting shaft spare, connects and composes the stir shaft that passes through whole rotating cylinder by a connecting shaft spare between every adjacent two unit shaft.
8. a kind of closed desulfurization dissociation reaction device according to claim 7, it is characterized in that: mounting flange is being set corresponding to the connecting shaft spare place on the described stir shaft, described mounting flange gabarit is installed on the described rotating cylinder inwall, its centre hole support is on the connecting shaft spare between per two unit shaft of stir shaft, and its quantity and described coupling shaft quantity equate.
9. a kind of closed desulfurization dissociation reaction device according to claim 1, it is characterized in that: described rotating cylinder supporting mechanism is made up of a pair of rotating cylinder supporting that is separately positioned on the outside two ends of rotating cylinder, each rotating cylinder supporting is made up of the bearing of roller and support roller again, the both sides of every pair of described rotating cylinder of rotating cylinder supporting symmetric support, the axis of described roller is parallel with the shaft axis of rotating cylinder.
10. a kind of closed desulfurization dissociation reaction device according to claim 1, it is characterized in that: described rotating cylinder and described agitator are done backward rotation.
11. a kind of closed desulfurization dissociation reaction device according to claim 1, it is characterized in that: described well heater is formed by heating chamber and interior thermal medium thereof with the thermal medium import and export that heating chamber provides the thermal source of thermal medium to be communicated with, described heating chamber is for around the rotating cylinder gabarit and form the pipeline of an annular closed at both ends with it, and thermal medium is by being arranged on thermal medium import and export on the described duct wall and circulate in this pipeline and conducting heat to drum wall.
12. a kind of closed desulfurization dissociation reaction device according to claim 11 is characterized in that: the thermal insulation layer of making by the heat-insulation and heat-preservation material in described heating chamber outer setting.
13. a desulfurization dissociation reaction system that comprises the described a kind of closed desulfurization dissociation reaction device of claim 1, it is characterized in that: this system also comprises drying installation, and the discharge port of described drying installation links to each other with the opening for feed of described desulfurization dissociation reaction device.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008202038427U CN201326001Y (en) | 2008-11-21 | 2008-11-21 | Closed desulphurization and dissociation reaction vessel and system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008202038427U CN201326001Y (en) | 2008-11-21 | 2008-11-21 | Closed desulphurization and dissociation reaction vessel and system thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010057444A1 (en) * | 2008-11-21 | 2010-05-27 | 东莞市松山科技集团有限公司 | Sealed dissociation and desulfurization reactor and system thereof |
| CN103098269A (en) * | 2010-08-26 | 2013-05-08 | 宇部兴产株式会社 | Continuous manufacturing method for electrode material |
-
2008
- 2008-11-21 CN CNU2008202038427U patent/CN201326001Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010057444A1 (en) * | 2008-11-21 | 2010-05-27 | 东莞市松山科技集团有限公司 | Sealed dissociation and desulfurization reactor and system thereof |
| CN103098269A (en) * | 2010-08-26 | 2013-05-08 | 宇部兴产株式会社 | Continuous manufacturing method for electrode material |
| CN103098269B (en) * | 2010-08-26 | 2016-01-20 | 宇部兴产株式会社 | The method for continuous production of electrode material |
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