CN104003688A - Sulphur solidification forming object manufacturing system and manufacturing method - Google Patents
Sulphur solidification forming object manufacturing system and manufacturing method Download PDFInfo
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- CN104003688A CN104003688A CN201310056277.1A CN201310056277A CN104003688A CN 104003688 A CN104003688 A CN 104003688A CN 201310056277 A CN201310056277 A CN 201310056277A CN 104003688 A CN104003688 A CN 104003688A
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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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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention provides a sulphur solidification forming object manufacturing system and manufacturing method of a product. The needed forming shape of the product is formed by receiving mixtures of coal bottom ash and sulphur as solid powder. The sulphur solidification forming object manufacturing system comprises a continuous mixing unit and a sulphur gas recycling unit. The continuous mixing unit is used for mixing raw materials including the coal bottom ash and the sulphur, and the sulphur gas recycling unit is used for recycling sulphur gas generated by the continuous mixing unit and conveying the sulphur gas to the continuous mixing unit. The continuous mixing unit comprises a heat source portion, and the heat source portion is used for heating the sulphur included in the mixtures to be above a fusion point. Therefore, the mixtures of the solid powder are adopted as the raw materials, only specific raw materials in the mixtures are fused, the fused mixtures are manufactured, and meanwhile flowing mixtures can be manufactured continuously.
Description
Technical field
The present invention relates to sulphur solidification forming composition preparation system and method thereof (Sulfur Solidifed Molding Fabrication System and Method Thereby), more specifically, relate to for come sulphur solidification forming composition preparation system and the method thereof of continuous production sulphur solidification forming composition as the coal bottom ash of pressed powder and the mixture of sulphur by heat power supply device utilization.
Background technology
At firepower and integrated gasification combined cycle plants (IGCC, Integrated Gasification Combined Cycle) in the coal ash that power generation system produces, account for approximately 10%～15% bottom ash as the material to a certain extent with the Porous of the required hardness of aggregate, there is the characteristic that density is low and granularity is large.
In produced coal ash, flying dust is the most often reused as cement raw material and concrete mixed agent, in addition, recycle in Si-K fertilizer, soil improvement material, the making of light weight aggregate, roadbed material, filler and light weight material of construction etc., bottom ash is compared with flying dust, stability, granularity etc. not there are differences with general aggregate (KS F2526), but due to as low density, high-absorbility, relatively high unburned carbon contained characteristics such as content, be difficult to bottom ash to be used as general aggregate, thereby current major part is carried out landfill disposal at landfill yard.
On the other hand, increase along with current consumption, generation as the bottom ash of trade waste is all increasing every year, along with part is used as concrete additive, or major part is carried out landfill disposal, the landfill yard capacity in part power station has reached the limit, urgent need is appended and is built recycling, but because of environmental problem and generation resentment etc., currently still be difficult to append construction, therefore can continue to guarantee by the recycling of coal bottom ash, use the technology of recycle to become the necessary factor of economic growth again.
So far, the technology of relevant utilization bottom ash, modal is that bottom ash is used as the civil construction material of concrete (reprocessing cycle aggregate or artificial light weight aggregate processing technology etc.), mortar (mortar), in addition, known technology also have the objectionable impurities having on the formation characteristic of bottom ash treatment process, utilize MAR(Magaldi Ash Recycling, the circulation of the ash of horse card) bottom ash of system fly ashing method etc.
But, with regard to utilizing the concrete application technology of bottom ash, must there is the preconditioning technique of the problem that the formation characteristic for solving by bottom ash causes.
The first, the bottom ash processing mode in the domestic fuel-burning power plant of Korea S is used the wet method of utilizing seawater, so salt content is high, if will use as concrete additive, need to carry out removing by cleaning the operation of salt.And because the loss on ignition of the unburned carbon amount of expressing as impact concrete application property and intensity is more than 10% (KS benchmark is below 5%), thereby existence may produce the problem of corrosion phenomenon, so need to remove/reclaim the technology of the contained carbon of bottom ash.
Conventionally, sulphur is water insoluble, and melting in the temperature range of 119 ℃～159 ℃ and become the liquid phase of low viscosity (11cp～7cp), sulphur solidifies rapidly at normal temperatures and has a crystal habit of rhombic system (orthorhombic system), solid state in stable, has high strength.
The character of utilizing sulphur is developed in lasting trial, that is, surpass 119 ℃ and just dissolve and be the character of solid at normal temperatures, sulphur is applicable to the technology of building and construction field.As an example, Zeng Zuowei wrapping material (No. 4290816th, United States Patent (USP), 1981) and material of construction solidify and use with bond materials such as thing materials with thing material or waste.
After 2000, proposed the inflammableness of bright sulfur sulphur and be present in the problem etc. of separating out that sulphur oxidizing bacteria in seawater or soil causes sulfate ion, active having carried out for the research that utilizes the modified sulfur of properties-correcting agent (Dicyclopentadiene (DCPD) (dicyclopentadiene) etc.).The modified-reaction that utilizes the sulphur of properties-correcting agent is polyreaction, there are the following problems: after reaction finishes, also continue to carry out again polyreaction during melting, and cause viscosity rise, bring task difficulty, once temperature declines, mobility decreases and the phenomenon of cooling curing rapidly occurs, along with the melting mixing time, and the quality reduction of material etc.
As for making up the technology of the shortcoming of this sulfur modified reaction, proposed to drop into the technology of other additives (polymerization inhibitor etc.), this technology of modified sulfur of utilizing is not easy except dereaction, along with increasing with extra additive, there is the shortcoming that increases the weight of economy, environmental stress except sulphur.
In watery fusion (low temp.melting) sulphur solidification method, by utilizing the utmost point watery fusion solidification method of the characteristic of sulphur, prepare sulfur melting cured article as used herein.
More than 160 ℃, in sulphur, the sulphur of 8 rings decomposes in conjunction with starting, the free radical (radical) now decomposing is very high with the reactivity of heavy metal compound, thereby the heavy metal compound in promotion mineral-type materials reacts with sulphur, heavy metal is become for the few sulfide of separating out of water.By the mode of utilizing this specific character to make the immobilization of heavy metal class block heavy metal under the insoluble state of water, can effectively block the heavy metal class that is contained in bottom ash, prepare the building materials of environmental sound.
The ratio that contains of sulphur is 10wt%～70wt%, can change flexibly according to the desired strength of material of construction the amount of sulphur, can utilize the alkalescence of bottom ash to prepare alkaline sulfur melting cured article, thereby prevent that the sulfate ion being caused by the effect that is present in sulphur oxidizing bacteria in seawater or soil etc. (knurl bacillus (Thiobacillus) belongs to bacterium) from separating out.
The sulphur using in this preparation method can be used the sulphur (more than 99%) generating in the de-oiling operation of petroleum refining operation, as secondary material, can add slag, to meet the proportion that requires of sulfur melting cured article.
The technology of preparing of sulphur solidification forming composition of utilizing the characteristic of this coal bottom ash and sulphur, is characterized in that, melting sulphur is permeated in the space of coal bottom ash, prepares fluidity mixture, and this fluidity mixture cooling forming is become to the shape of regulation.
The bottom ash major part of using is landfilled in seawater landfill yard, thereby moisture content high (more than 50%).If the bottom ash using as solid material has high moisture content, will affect stabilization and the solidification of the sulphur cured article of preparing in operation, therefore expect, reduce as far as possible the water ratio of bottom ash.
And the sulphur cured article infrastest result of observing based on size distribution is known, along with granularity increases, the compressive strength of sulphur cured article reduces.This be due to, because interparticle interval becomes large, even reinforce in the process that rod reinforces utilizing, also cannot fully realize solidification.Therefore,, in view of the characteristic of the various bottom ash of size distribution can be judged, before sulfur melting operation, need to make the uniform pulverizing process of size distribution of bottom ash.
If want continuous production sulphur solidification forming composition, must need a kind of following continous way hybrid technology of heating, according to this continous way hybrid technology of heating, make pressed powder sulfur melting and after being transformed to liquid composition, the coal bottom ash of the solids component little with granularity mixes, and the forming mould of pouring regulation into carries out moulding, and this needs a kind of following hybrid technology of heating, according to this hybrid technology of heating, for making continuously the bottom ash of pressed powder of sustainable supply and the sulfur melting that sulphur has low ratio of components (30wt%～10wt%) carry out liquid phase, and it is evenly mixed with the coal bottom ash that accounts for the solids component of relative high ratio of components (70wt%～90wt%), continuously produce molten mixture.
Because the thermal conductivity of the coal bottom ash that will supply with and sulphur mixture is very low, and be difficult to heat, therefore need the heating plant transmitting for fully carrying out heat, and in need to the raw material based on dropping into, the ratio of components of sulphur be prepared into best inhomogeneous 2 constituent class fluidity mixtures by solid powder mixture, and the part of the minimized mixing tank of heat energy that will supply with is added to temperature technique.
Current, utilize the compressive strength of modified sulfur cured article prepared by modified sulfur not reach benchmark value, or the defect ware being difficult to producing in moulding process recycle.But, with regard to the sulphur cured article of preparation in the present invention, because former state maintains the natural characteristics of sulphur, thereby have advantages of and can recycle.
Therefore, need to be for the crushing technology of effective comminuted solids thing, when producing defect ware according to sulfur melting degree in mixing process, again heat and re-use at in-process.
And, while making sulfur melting by heating in mixing tank, will produce the sulfur gas of trace (approximately 0.1%～0.3%), the sulfur gas producing is obnoxious flavour, thereby needs for reclaiming trapping and the recovery technology of this sulfur gas.
And, need a kind of following screw design (screw design) technology, according to this screw design technology, the solids component of high ratio of components along with screw rod (screw) to be rotated in regulation interval when mobile, in cylinder (cylinder), regulate the volume of solid powder mixture, with by the minimum loads of screw motor (screw motor), or, at raw material throw-in part, regulate pitch (screw pitch), so that solid powder mixture moves swimmingly.
Therefore, really need to develop the technology of following sulphur solidification forming composition preparation system: the sulfur melting that makes low ratio of components in the raw material of the solid powder mixture dropping in order to prepare sulphur solidification forming composition, carry out continuous production mixture, and have for being recovered in the trapping of the sulfur gas that mixing process produces and reclaiming function.
Summary of the invention
The present invention proposes in order to address the above problem, provide following sulphur solidification forming composition preparation system and method thereof: the bottom ash to landfill in the high-moisture percentage of brine disposal field is dried, powder particle diameter various bottom ash that distributes equably, the coal bottom ash of the low pressed powder of the thermal conductivity of sustainable supply with in sulphur mixture, make the relative low sulfur melting of ratio of components in permeate in the space of the bottom ash of high ratio of components, carry out continuous production fluidity mixture, and be recovered in the gas producing in mixing and re-use, and can carry out mixing for re-use the continuity of the defect ware producing while mixing at in-process, gas recovery and comminution process.
In order to address the above problem, a scheme of the present invention provides a kind of sulphur solidification forming composition preparation system, reception is as the coal bottom ash of pressed powder and the mixture of sulphur, form the product of needed forming shape, above-mentioned sulphur solidification forming composition preparation system comprises: continous way mixed cell, for mixing at interior raw material with sulphur comprising coal bottom ash, and sulfur gas recovery unit, the sulfur gas producing for being recovered in above-mentioned continous way mixed cell, and carry to above-mentioned continous way mixed cell; Above-mentioned continous way mixed cell comprises thermal source portion, and this thermal source portion is for more than being heated to fluxing point by the contained sulphur of said mixture.
Preferably, above-mentioned continous way mixed cell also comprises: supply unit, and it utilizes raw material supplying screw rod to receive above-mentioned raw materials; And mixing portion, it utilizes mixer screw to mix resulting mixture discharge this mixture in next life to the raw material of supplying with from above-mentioned supply unit.
Preferably, above-mentioned supply unit comprises: raw material supplying funnel (hopper), and it receives above-mentioned raw materials from outside; And screw rod governor motor, it is located at above-mentioned raw materials and supplies with funnel and mix between portion with above-mentioned, for regulating the raw material of supplying with funnel supply from above-mentioned raw materials, to drop into continuously quantitatively above-mentioned raw materials.
Preferably, by above-mentioned screw rod governor motor, be adjusted to 5g/min～60g/min and supply with above-mentioned raw materials to above-mentioned mixing portion.
Preferably, above-mentioned mixing portion is cylindrical, and above-mentioned mixer screw is located at the inside of above-mentioned mixing portion; Above-mentioned mixer screw forms, from above-mentioned supply unit more away from, screw channel is more shallow, so that the raw material of supplying with is by the heating of above-mentioned thermal source portion and move to be compressed the mode of power.
Preferably, above-mentioned thermal source portion comprises for regulating the thermoswitch of temperature.
Preferably, above-mentioned sulfur gas recovery unit comprises: immovable bed reactor, and it utilizes catalyzer to trap and gas recovery; Flow regulator, it is for regulating the space velocity of the gas flowing into above-mentioned immovable bed reactor; And analyzer, it is for analyzing reactant and the resultant of the inside of above-mentioned immovable bed reactor.
Preferably, above-mentioned immovable bed reactor is plug flow reactor (PFR, Plug Flow Reactor.
Preferably, the temperature of reaction of above-mentioned immovable bed reactor is the scope of 200 ℃～700 ℃.
Preferably, the gas that above-mentioned flow regulator produces inside at above-mentioned continous way mixed cell with for reducing the reductive agent of above-mentioned gas, mix, regulate to the space velocity of the gas of above-mentioned immovable bed reactor input.
Preferably, above-mentioned space velocity can be 5000cm
3/ g-cat.h～30000cm
3/ g-cat.h.
Preferably, above-mentioned sulphur solidification forming composition preparation system also comprises coal bottom ash drying unit, before utilizing above-mentioned continous way mixed cell mixing above-mentioned raw materials, above-mentioned coal bottom ash drying unit is so that the sulphur of melting is mixed into the mode in space of utilizing seawater to carry out wet processed and having an above-mentioned coal bottom ash of high-moisture percentage that above-mentioned raw materials is dried.
Preferably, above-mentioned sulphur solidification forming composition preparation system also comprises heat recovery units, and this heat recovery units is for being recovered in the heat of above-mentioned continous way mixed cell generation and supplying with to above-mentioned coal bottom ash drying unit.
Preferably, above-mentioned sulphur solidification forming composition preparation system also comprises coal bottom ash pulverizing unit, utilize above-mentioned coal bottom ash drying unit above-mentioned raw materials is dried after and utilizing above-mentioned continous way mixed cell mixing above-mentioned raw materials before, above-mentioned coal bottom ash pulverizing unit is crushed to specification particle diameter by above-mentioned coal bottom ash, so that the sulphur cured article that will generate shows needed compressive strength.
Preferably, above-mentioned sulphur solidification forming composition preparation system also comprises recycling pulverizing unit, and this recycling pulverizing unit recycles for pulverize above-mentioned defect ware in the situation that being molded into unwanted defect ware.
In order to address the above problem, the present invention's one scheme provides a kind of sulphur solidification forming composition preparation method, reception is as the coal bottom ash of pressed powder and the mixture of sulphur, form the product of needed forming shape, it is characterized in that, comprise the following steps: the step of mixing at interior raw material comprising coal bottom ash and sulphur; The contained sulphur of said mixture is heated to step more than fluxing point; And the sulfur gas producing in the above-mentioned sulphur that said mixture is contained is heated to step more than fluxing point is reclaimed, reclaimed sulfur gas is used in to above-mentioned step of mixing at interior raw material comprising coal bottom ash and sulphur.
Preferably, above-mentioned sulphur solidification forming composition preparation method also comprises so that the sulphur of melting is mixed into the mode in space of utilizing seawater to carry out wet processed and having an above-mentioned coal bottom ash of high-moisture percentage raw material carried out to dry step, and this step was carried out before comprising the step that coal bottom ash and sulphur mixes at interior raw material above-mentioned.
Preferably, above-mentioned sulphur solidification forming composition preparation method, also comprise above-mentioned coal bottom ash be crushed to specification particle diameter so that the sulphur cured article that will generate shows the step of needed compressive strength, this step above-mentioned to carrying out after raw material is carried out to dry step before comprising the step that coal bottom ash and sulphur mixes at interior raw material and above-mentioned.
Preferably, above-mentioned sulphur solidification forming composition preparation method is also included in the step of pulverizing above-mentioned defect ware recycling in the situation that is molded into unwanted defect ware.
The invention provides sulphur solidification forming composition preparation system being improved and preparation method thereof, thereby there is the efficiency that can improve the preparation section of melting and solidification thing by removing the moisture in bottom ash, and by adjusting the particle diameter of bottom ash, can improve the effect of the compressive strength of sulphur cured article.
And, the invention provides the sulphur solidification forming composition preparation system and the preparation method that are improved, can the inhomogeneous 2 constituent class molten mixtures of continuous production using solid as principal constituent thereby have, and by the low material of thermal conductivity being added to gentle compression, prepare the effect of best molten mixture.
And then, the invention provides the sulphur solidification forming composition preparation system and the preparation method that are improved, thereby there is the effect that significant loss is minimized and reduced the outflow of obnoxious flavour.
Again and then, the invention provides the sulphur solidification forming composition preparation system and the preparation method that are improved, thereby have by pulverizing, can re-use at in-process the effect of fast rigid solids.
Accompanying drawing explanation
Fig. 1 is for the sulphur solidification forming composition preparation system of one embodiment of the invention and preparation method's block diagram are described, here, after coal bottom ash and sulphur are dried and pulverize to prepare the mixture of pressed powder, by heating, mix and prepare fluidity mixture.
Fig. 2 mean one embodiment of the invention for utilizing the schematic diagram of the structure of the coal bottom ash of pressed powder and the sulphur solidification forming composition preparation system of sulphur mixture continuous production melting sulphur fluidity mixture.
Fig. 3 a and Fig. 3 b are the part detailed structure view of Fig. 2.
Fig. 4 mean an embodiment more of the present invention for utilizing the schematic diagram of the structure of the coal bottom ash of pressed powder and the sulphur solidification forming composition preparation system of sulphur mixture continuous production melting sulphur fluidity mixture.
Embodiment
Below, with reference to accompanying drawing, the preferred embodiments of the present invention are described.Should be noted that accompanying drawing and with reference to the accompanying drawings of embodiment only for helping person of an ordinary skill in the technical field to understand the present invention.
The present invention relates to following technology: the bottom ash to landfill in the high-moisture percentage of brine disposal field is dried, powder particle diameter various bottom ash that distributes equably, the coal bottom ash of the low pressed powder of the thermal conductivity of sustainable supply with in sulphur mixture, make the relative low sulfur melting of ratio of components in permeate in the space of the bottom ash of high ratio of components, carry out continuous production fluidity mixture, and be recovered in the gas producing in mixing and re-use, and re-use at in-process the defect ware producing while mixing.
For this reason, the invention provides following sulphur solidification forming composition preparation system and preparation method: to comprising coal bottom ash, mix at interior raw material with sulphur, more than the contained sulphur of mixture is heated to fluxing point, and recovery re-uses the sulphur gas producing in above-mentioned process.
Fig. 1 is for the sulphur solidification forming composition preparation system of one embodiment of the invention and preparation method's block diagram are described, here, after coal bottom ash and sulphur are dried and pulverize to prepare the mixture of pressed powder, by heating, mix and prepare fluidity mixture.
With reference to Fig. 1, sulphur solidification forming composition preparation system receives as the coal bottom ash of pressed powder and the mixture of sulphur, form the product of needed forming shape, this sulphur solidification forming composition preparation system comprises: continous way mixed cell 10, it is for mixing at interior raw material comprising coal bottom ash and sulphur, and continous way mixed cell 10 comprises thermal source portion 300, this thermal source portion 300 is for more than being heated to fluxing point by the contained sulphur of mixture; Sulfur gas recovery unit 400, the sulfur gas that it produces for being recovered in continous way mixed cell 10, and transfer to continous way mixed cell 10.
Continous way mixed cell 10 comprises: supply unit 200, it utilizes raw material supplying screw rod 201(with reference to Fig. 2) receive raw material; Mixing portion 100, its utilize mixer screw 103(with reference to Fig. 3 a) to the raw material resulting mixture in next life of supplying with from supply unit 200 and discharge mixture.And then continous way mixed cell 10 also comprises forming part 700, this forming part 700 is for the manufacture of the product with needed forming shape.
Supply unit 200 comprises: raw material supplying funnel 203(is with reference to Fig. 2), it receives raw material from outside; And screw rod governor motor 202, it is located at raw material supplying funnel 203 and mixes between portion 100, and the raw material quantitative ground of supplying with from raw material supplying funnel 203 is dropped into continuously.For example, can be adjusted to 5g/min～60g/min to mixing portion base feed by screw rod governor motor 202.As for utilizing raw material supplying screw rod 201 and comprising raw material supplying funnel 203 and the supply unit 200 of screw rod governor motor 202, with reference to Fig. 2, be elaborated afterwards.
Mixing portion 100 is cylindrical, and mixer screw 103 is located in mixing portion 100.Mixer screw 103 forms, from supply unit 200 more away from, that is, the closer to forming part 700 1 sides, screw channel is more shallow, so that the raw material of supplying with is by thermal source portion 300 heating and move to be compressed the mode of power.
Thermal source portion 300 comprise for the well heater 302(of heat supply with reference to Fig. 3 a), thermometer 301 and for regulating the thermoswitch 303 of temperature.
Sulfur gas recovery unit 400 comprises: immovable bed reactor 401(is with reference to Fig. 3 b), it utilizes catalyzer to trap and gas recovery; Flow regulator 404, it is for regulating the space velocity of the gas flowing into immovable bed reactor 401; Analyzer 402, it is for analyzing reactant and the resultant in immovable bed reactor 401.Immovable bed reactor 401 can be plug flow reactor.The temperature of reaction of immovable bed reactor 401 can be the scope of 200 ℃～700 ℃.404 pairs of gases in the 10 interior generations of continous way mixed cell of flow regulator with for reducing the reductive agent of this gas, mix, regulate the space velocity of the gas dropping into immovable bed reactor 401.Space velocity at this can be 5000cm
3/ g-cat.h～30000cm
3/ g-cat.h.
As shown in Figure 1, the sulphur solidification forming composition preparation system of one embodiment of the invention also comprises coal bottom ash drying unit 500, utilizing before continous way mixed cell 10 carrys out mixing raw material, coal bottom ash drying unit 500 is so that the sulphur of melting is mixed into the mode in space of utilizing seawater to carry out wet processed and having an above-mentioned coal bottom ash of high-moisture percentage that above-mentioned raw materials is dried.
And above-mentioned sulphur solidification forming composition preparation system also comprises heat recovery units 800, this heat recovery units 800 is for being recovered in the heat of continous way mixed cell 10 generations and supplying with to coal bottom ash drying unit 500.
And, above-mentioned sulphur solidification forming composition preparation system also comprises coal bottom ash pulverizing unit 600, utilize 500 pairs of raw materials of coal bottom ash drying unit be dried after and utilizing before continous way mixed cell 10 carrys out mixing raw material, coal bottom ash pulverizing unit 600 is crushed to specification particle diameter by coal bottom ash, so that the sulphur cured article that will generate shows needed compressive strength.
And above-mentioned sulphur solidification forming composition preparation system also comprises recycling pulverizing unit 900, this recycling pulverizing unit 900 recycles for pulverize above-mentioned defect ware in the situation that being molded into unwanted defect ware by forming part 700.
Then, Fig. 2 mean one embodiment of the invention for utilizing the schematic diagram of the structure of the coal bottom ash of pressed powder and the sulphur solidification forming composition preparation system of sulphur mixture continuous production melting sulphur fluidity mixture, Fig. 3 a and Fig. 3 b are the part detailed structure view of Fig. 2.Especially, Fig. 3 a is the detailed structure view of the A part of Fig. 2, and Fig. 3 b is that the B of Fig. 2 is partly the detailed structure view of sulfur gas recovery unit 400.
Together with reference to Fig. 2, Fig. 3 a and Fig. 3 b, in the sulphur solidification forming composition preparation system of one embodiment of the invention, mixing portion 100 is cylindrical with Fig. 1, mixer screw 103(is set with reference to Fig. 3 a) this mixing portion 100 is interior.Mixer screw 103 forms, from supply unit 200 more away from, that is, the closer to forming part 700 1 sides, screw channel is more shallow, so that the raw material of supplying with is by thermal source portion 300 heating and move to be compressed the mode of power.Mixer screw 103 can be utilized single shaft screw rod.
Supply unit 200, for supplying with the raw material of solid powder mixture, comprises raw material supplying screw rod 201, screw rod governor motor 202 and raw material supplying funnel 203.As mentioned above, thermal source portion 300 comprise thermometer 301 for measuring temperature, for the well heater 302(of heat supply with reference to Fig. 3 a), for regulating the thermoswitch 303 of temperature.
As mentioned above, Fig. 3 b means for trapping the also integrally-built figure of the sulfur gas recovery unit 400 of recovery sulphur gas.
Sulfur gas recovery unit 400 comprises: immovable bed reactor 401, and it utilizes catalyzer to trap and gas recovery; Flow regulator 404, it is for regulating the space velocity of the gas flowing into immovable bed reactor 401; Analyzer 402, it is for analyzing reactant and the resultant in immovable bed reactor 401.And sulfur gas recovery unit 400 can also comprise for carrying out reductive agent 405 and the T-valve (3-way valve) 403 of reduction reaction.Wherein, as analyzer 402, for example, can utilize gas chromatography.
More specifically, sulfur gas recovery unit 400 is configured to utilize the two-stage type of two immovable bed reactors 401, effectively to reclaim micro-gas, can trap and gas recovery simultaneously.
The flow velocity of the gas dropping into immovable bed reactor 401 for the sulfur gas recovery unit 400 from Fig. 3 b, utilizes ratio based on reductive agent 405 of the flow regulator 404 proofreaied and correct and the amount of catalyzer to regulate.Space velocity can be adjusted to 5000cm
3/ g-cat.h～30000cm
3/ g-cat.h, more preferably 5000cm
3/ g-cat.h～15000cm
3/ g-cat.h.
The temperature of reaction of utilizing the immovable bed reactor 401 of catalyzer is 200 ℃～700 ℃, more preferably 300 ℃～550 ℃, by analyzer 402 with online (online) mode analytical reaction thing and resultant.For example, above-mentioned analyzer 402 can be that thermal conductivity detector (TCD) gas-chromatography is installed.
On the other hand, the present invention goes for embodiment as above, also goes for embodiment as shown in Figure 3 a simultaneously, that is, the well heater 302 of mixing tank, by 3 interval formation, makes temperature range of operation different by each interval.
With regard to sulphur concrete preparation method in the past, can there is the problem of melting sulphur snap cure when room temperature exposes, in order to prevent this problem, the sulphur solidification forming composition preparation system of one embodiment of the invention is used thermal source portion 300, to maintain the temperature of melting sulphur cured article from melting operation to forming part.
In the present invention, for melting mixing with to the extruding of forming part one side, realize unified and serialization, thereby can expect to reduce thermal source consumption costs, shorten the effect of heating and holding time during preparation section.
Below, referring to figs. 1 through Fig. 3 b, from supplying with as the coal bottom ash and element sulfur raw material of pressed powder, the course of action of sulphur solidification forming composition preparation system is described.
First, as mixing being used in coal bottom ash and the sulphur of the pressed powder of raw material of the present invention in advance, and after set raw material supplying funnel 203 input specified amounts, in order suitably to maintain the ratio of components of the mixture in mixing portion 100 according to the sulfur melting degree of solids, the raw material supplying screw rod 201 that utilization can drop into quantitatively continuously drops into mixing portion 100.
Raw material supplying screw rod 201 adjusting screw(rod) governor motors 202 are to supply with solid mixture to mixing portion 100, solid powder mixture for normal temperature, feed speed with 5g/min～170g/min, more preferably the feed speed with 5g/min～60g/min drops into solid powder mixture, and input solid powder mixture is along with the columnar mixing of being rotated in of mixer screw 103 portion 100 is inner mobile.
Mixer screw 103 from the part that will drop into raw material more away from, from the travel direction of raw material supplying funnel 203 1 side direction raw materials, screw channel is shoaled gradually, thereby makes the movement of mixture smooth and easy by the compression of solid powder mixture.
On the other hand, as shown in Figure 3 a, continous way mixed cell 10 can divide between melting zone 105, between mixing zone 106 and metering zone between 107, respectively between melting zone 105, between mixing zone 106 and metering zone between 107 make the volume of mixture different, thereby can prepare best continuity melting sulphur mixture.Especially, in the part that drops into raw material, in order to make the input of solid powder mixture and the minimum interference between movement, and regulated the pitch of mixer screw 103.
And, in the sulphur solidification forming composition preparation system of one embodiment of the invention, using the residual aggregate of coal bottom ash as object, now, for utilize single shaft screw rod make process that solid powder mixture moves in by the minimum loads of mixer screw motor, and the impact on the movement of raw material is eliminated at the pitch angle of the screw shaft of adjusting from raw material throw-in part to discharge portion, also in the part that drops into raw material, make the movement of mixture smooth and easy simultaneously.
Preferably, mixing portion 100 can utilize the solid powder mixture of well heater 302 heating normal temperature and with the temperature range operation of 119 ℃～200 ℃, and above-mentioned well heater 302 is located at the outside of columnar mixing portion 100.More preferably, the scope of said temperature is at 150 ℃～200 ℃.
Fig. 4 mean an embodiment more of the present invention for utilizing the schematic diagram of the structure of the coal bottom ash of pressed powder and the sulphur solidification forming composition preparation system of sulphur mixture continuous production melting sulphur fluidity mixture.
In this embodiment, well heater 302 can be divided into melting zone between 105, between mixing zone 106, between metering zone, 107 these three interval three corresponding intervals are moved.For example, can utilize respectively geseous fuel, liquid fuel, solid fuel to heat, also can utilize electric heater to heat.
For example, between melting zone 105, as the interval of the sulphur for melting normal temperature, can be the temperature range of 150 ℃～200 ℃, more preferably the temperature range operation of 160 ℃～180 ℃.And, between mixing zone 106, can be preferably the temperature range operation at 160 ℃～180 ℃ at 150 ℃～200 ℃, between metering zone 107, can be at 150 ℃～200 ℃, more preferably the temperature range operation of 160 ℃～180 ℃.
And, in utilizing the mixing screw 103 of single shaft and process that well heater 302 is heated, can be according to the thermal conductivity of object test portion and residence time, decide the length of mixing portion 100 and diameter, the temperature range of well heater 103, the input speed of the pitch of the pitch angle of screw rod, screw rod, reactant etc.
Sulphur in solid powder mixture, when move the inside of the mixing portion 100 of warm-up mode, produces micro-gas, and the gas producing is by 400 trappings of sulfur gas recovery unit and recovery.
; in this embodiment; mixing portion 100 is with three intervals of differing temps operation; the target temperature of design temperature setter 303 for heating of each interval; according to the variation of the composition of the sulphur in the raw material dropping into mixing portion 100, make each interval temperature different, regulate the heat energy that will use to supply with; by regulate the residence time of solid powder mixture according to the rotating speed of mixer screw 103, can prepare best inhomogeneous 2 constituent class sulphur mixtures.
In order to make product, prepared sulphur mixture is injected into forming part 700, the sulphur mixture of filling in forming mould (not shown) is product by compression and cooling production.Melting sulphur is snap cure when room temperature exposes, thereby as the present invention, needs a kind of unit of heating of persistence.Therefore, need to thermal source portion be set at forming mould and sulphur cured article throw-in part, the heat of using is used in the drying process of front end by heat recovery units 800, thereby can be reduced the effect of operation expense.
Finally, in the situation that produce defect ware in prepared sulphur cured article product, by recycling pulverizing unit 900, again put into melting mixing operation and recycle.Be used in sulphur of the present invention and maintain intrinsic character, thereby can re-use.
Then the sulphur solidification forming composition preparation method who, the reception of one embodiment of the invention is formed to the product of needed forming shape as the coal bottom ash of pressed powder and the mixture of sulphur describes.
The sulphur solidification forming composition preparation method of one embodiment of the invention comprises the steps: the step of mixing at interior raw material comprising coal bottom ash and sulphur; The contained sulphur of said mixture is heated to step more than fluxing point; And the sulfur gas producing in the above-mentioned sulphur that said mixture is contained is heated to step more than fluxing point is reclaimed, reclaimed sulfur gas is used in to above-mentioned step of mixing at interior raw material comprising coal bottom ash and sulphur.
Referring to figs. 1 through Fig. 4, to comprising the step that coal bottom ash and sulphur mixes at interior raw material, can be carried out by continous way mixed cell 10, the step that the contained sulphur of mixture is heated to more than fluxing point can be carried out by thermal source portion 300.
And, above-mentioned sulphur solidification forming composition preparation method also comprises that the mode in space that the sulphur of melting is mixed into utilize seawater to carry out wet processed and has an above-mentioned coal bottom ash of high-moisture percentage carries out dry step to raw material, and this step was being carried out before comprising the step that coal bottom ash and sulphur mixes at interior raw material by coal bottom ash drying unit 500.
And, above-mentioned sulphur solidification forming composition preparation method also comprises above-mentioned coal bottom ash is crushed to specification particle diameter so that the sulphur cured article that will generate shows the step of needed compressive strength, this step by 600 pairs of coal bottom ash pulverizing units are above-mentioned comprise the step that coal bottom ash and sulphur mixes at interior raw material before and above-mentioned, carry out after raw material is carried out to dry step.
And above-mentioned sulphur solidification forming composition preparation method also comprises, when being molded into unwanted defect ware, pulverizes by recycling pulverizing unit 900 step that this defect ware recycles.
Sulphur solidification forming composition preparation system and the preparation method of various embodiments of the present invention for the above-described, so long as person of an ordinary skill in the technical field just can understand, in the category of basic fundamental thought of the present invention, can carry out other distortion and Application Design.
Claims (12)
1. a sulphur solidification forming composition preparation system, receives as the coal bottom ash of pressed powder and the mixture of sulphur, forms the product of needed forming shape, it is characterized in that,
Comprise:
Continous way mixed cell, it is for mixing at interior raw material with sulphur comprising coal bottom ash, and
Sulfur gas recovery unit, the sulfur gas that it produces for being recovered in above-mentioned continous way mixed cell, and carry to above-mentioned continous way mixed cell;
Above-mentioned continous way mixed cell comprises thermal source portion, and this thermal source portion is for more than being heated to fluxing point by the contained sulphur of said mixture.
2. sulphur solidification forming composition preparation system according to claim 1, is characterized in that, above-mentioned continous way mixed cell also comprises:
Supply unit, it utilizes raw material supplying screw rod to receive above-mentioned raw materials; And
Mixing portion, it utilizes mixer screw to mix the raw material of supplying with from above-mentioned supply unit, next life resulting mixture discharge this mixture.
3. sulphur solidification forming composition preparation system according to claim 2, is characterized in that,
Above-mentioned mixing portion is cylindrical, and above-mentioned mixer screw is located at the inside of above-mentioned mixing portion;
Above-mentioned mixer screw forms, from above-mentioned supply unit more away from, screw channel is more shallow, so that the raw material of supplying with is by the heating of above-mentioned thermal source portion and move to be compressed the mode of power.
4. sulphur solidification forming composition preparation system according to claim 1, is characterized in that,
Above-mentioned sulfur gas recovery unit also comprises:
Immovable bed reactor, it utilizes catalyzer to trap and gas recovery;
Flow regulator, it is for regulating the space velocity of the gas flowing into above-mentioned immovable bed reactor; And
Analyzer, it is for analyzing reactant and the resultant of the inside of above-mentioned immovable bed reactor.
5. sulphur solidification forming composition preparation system according to claim 4, it is characterized in that, the gas that above-mentioned flow regulator produces inside at above-mentioned continous way mixed cell with for reducing the reductive agent of above-mentioned gas, mix, regulate to the space velocity of the gas of above-mentioned immovable bed reactor input.
6. sulphur solidification forming composition preparation system according to claim 5, is characterized in that, above-mentioned space velocity is 5000cm
3/ g-cat.h～30000cm
3/ g-cat.h.
7. sulphur solidification forming composition preparation system according to claim 1, it is characterized in that, also comprise coal bottom ash drying unit, before utilizing above-mentioned continous way mixed cell mixing above-mentioned raw materials, above-mentioned coal bottom ash drying unit is so that the sulphur of melting is mixed into the mode in space of utilizing seawater to carry out wet processed and having an above-mentioned coal bottom ash of high-moisture percentage that above-mentioned raw materials is dried.
8. sulphur solidification forming composition preparation system according to claim 7, is characterized in that, also comprises heat recovery units, and this heat recovery units is for being recovered in the heat of above-mentioned continous way mixed cell generation and supplying with to above-mentioned coal bottom ash drying unit.
9. sulphur solidification forming composition preparation system according to claim 8, it is characterized in that, also comprise coal bottom ash pulverizing unit, utilize above-mentioned coal bottom ash drying unit above-mentioned raw materials is dried after and utilizing above-mentioned continous way mixed cell mixing above-mentioned raw materials before, above-mentioned coal bottom ash pulverizing unit is crushed to specification particle diameter by above-mentioned coal bottom ash, so that the sulphur cured article that will generate shows needed compressive strength.
10. a sulphur solidification forming composition preparation method, receives as the coal bottom ash of pressed powder and the mixture of sulphur, forms the product of needed forming shape, it is characterized in that,
Comprise the following steps:
The step of mixing at interior raw material comprising coal bottom ash and sulphur;
The contained sulphur of said mixture is heated to step more than fluxing point; And
The sulfur gas producing in the above-mentioned sulphur that said mixture is contained is heated to step more than fluxing point is reclaimed, reclaimed sulfur gas is used in to above-mentioned step of mixing at interior raw material comprising coal bottom ash and sulphur.
11. sulphur solidification forming composition preparation methods according to claim 10, it is characterized in that, also comprise so that the sulphur of melting is mixed into the mode in space of utilizing seawater to carry out wet processed and having an above-mentioned coal bottom ash of high-moisture percentage raw material is carried out to dry step, this step was being carried out before comprising the step that coal bottom ash and sulphur mixes at interior raw material.
12. sulphur solidification forming composition preparation methods according to claim 11, it is characterized in that, also comprise above-mentioned coal bottom ash be crushed to specification particle diameter so that the sulphur cured article that will generate shows the step of needed compressive strength, this step above-mentioned to carrying out after raw material is carried out to dry step before comprising the step that coal bottom ash and sulphur mixes at interior raw material and above-mentioned.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117032A (en) * | 1994-04-18 | 1996-02-21 | 日本碍子株式会社 | Process for preparing solidified material containing coal ash |
| CN1148576A (en) * | 1995-05-26 | 1997-04-30 | 株式会社猪狩环境科学研究所 | Method for manufacturing molded materials solidified by sulfur and apparatus used therein |
| JP2003055025A (en) * | 2001-06-08 | 2003-02-26 | Kawasaki Steel Corp | Hydrated hardened body |
| CN101189107A (en) * | 2005-05-13 | 2008-05-28 | 新日本石油株式会社 | System for production of solid modified sulfur products |
| CN101952219A (en) * | 2008-03-25 | 2011-01-19 | 新日本石油株式会社 | Production method and production system of solidified sulfur |
-
2013
- 2013-02-22 CN CN201310056277.1A patent/CN104003688A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117032A (en) * | 1994-04-18 | 1996-02-21 | 日本碍子株式会社 | Process for preparing solidified material containing coal ash |
| CN1148576A (en) * | 1995-05-26 | 1997-04-30 | 株式会社猪狩环境科学研究所 | Method for manufacturing molded materials solidified by sulfur and apparatus used therein |
| JP2003055025A (en) * | 2001-06-08 | 2003-02-26 | Kawasaki Steel Corp | Hydrated hardened body |
| CN101189107A (en) * | 2005-05-13 | 2008-05-28 | 新日本石油株式会社 | System for production of solid modified sulfur products |
| CN101952219A (en) * | 2008-03-25 | 2011-01-19 | 新日本石油株式会社 | Production method and production system of solidified sulfur |
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Application publication date: 20140827 |