CN208840196U - A kind of garbage flying ash processing unit and silicate product - Google Patents
A kind of garbage flying ash processing unit and silicate product Download PDFInfo
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- CN208840196U CN208840196U CN201821481765.1U CN201821481765U CN208840196U CN 208840196 U CN208840196 U CN 208840196U CN 201821481765 U CN201821481765 U CN 201821481765U CN 208840196 U CN208840196 U CN 208840196U
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- cotton
- flying ash
- garbage flying
- wool
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Abstract
The utility model relates to a kind of garbage flying ash processing unit and silicate products, the processing unit includes the feed unit being sequentially communicated, melt element, silicate product production unit, the silicate product production unit includes centrifuge, is connected to the discharge port of melt element；Spraying mechanism is set in centrifuge；Cotton collecting machine, for collecting cotton-wool/bonding agent mixture of centrifuge output；Curing oven is connected to the discharge port of cotton collecting machine；And calender obtains silicate product for carrying out calendering formation processing to cotton-wool/bonding agent solidified body.The device and method of the utility model can realize the harmless treatment and resource utilization of garbage flying ash, be not necessarily to subsequent landfill disposal；The heavy metal in garbage flying ash is effectively cured in silicate product by high-temperature fusion, efficiently, is stablized, the problem of without having to worry about heavy metal pollution；Gas disposal unit can realize effective purification of flue gas, no pernicious gas discharge.
Description
Technical field
The utility model belongs to environmental protection technical field, and in particular to a kind of garbage flying ash processing unit and silicate system
Product.
Background technique
The processing mode of municipal refuse mainly using landfill and burns two methods, and burning disposal is development trend, hair
Open up speed also quickly.The flue gas discharged in Refuse Incineration Process can generate a large amount of flying dust, which accounts for crude waste weight
2%-5% (fixed grate incinerator) and 5%-10% (fluidized bed incinerator).Heavy metal in flying dust containing high concentration and
Carcinogen dioxin belongs to hazardous waste scope, needs to carry out harmless treatment.
Currently, to the processing of garbage flying ash mainly use cement solidification, lime be solidification, calcining after flying dust washing, etc. from
The methods of daughter melting, chemical stabilization.Need to occupy landfill place using the solidification method of cement solidification and lime, and
Processing is not thorough and pollutes transfer.Flying dust method for washing is to wash in calcination process to flying dust, in water-washing process
A large amount of salts and heavy metal can be remained, will cause water pollution and environment is impacted.Plasma fusion process processing flies
More thoroughly, but this method amount of equipment power consumption is very big for gray scale, and processing cost is high, is not suitable for heavy industrialization application.Medicament is steady
Surely change method to need to add organic pollutant during processing, will cause secondary pollution.201010230962.8 disclosure of patent
Flying dust can be effectively treated in a kind of flyash treatment method for waste incineration, this method, finally convert flying dust to the inertia of glassy state
Solid waste.But the inert solid waste cannot be utilized, and still needed to carry out landfill disposal, occupied large amount of land resources.
Utility model content
The utility model provides a kind of garbage flying ash processing aiming at the problem that garbage flying ash is difficult to handle and cannot be utilized
Device and silicate product, to realize the harmless treatment and resource utilization of garbage flying ash.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows:
A kind of garbage flying ash processing unit, including feed unit, melt element, the silicate product production list being sequentially communicated
Member, the silicate product production unit include
Centrifuge is connected to the discharge port of melt element, and the molten slurry for exporting to melt element carries out centrifugal treating, is obtained
Obtain cotton-wool body；
Spraying mechanism is set in centrifuge, for spraying binder to cotton-wool body, obtains cotton-wool/bonding agent mixture；
Cotton collecting machine, for collecting cotton-wool/bonding agent mixture of centrifuge output；
Curing oven is connected to the discharge port of cotton collecting machine, for carrying out curing process to cotton-wool/bonding agent mixture, is obtained
Cotton-wool/bonding agent solidified body；With
Calender obtains silicate product for carrying out calendering formation processing to cotton-wool/bonding agent solidified body.
Designed using such structure, by feed unit by garbage flying ash and associated additives after mixing, with one
Setting formula input melt element in, the organic pollutant in garbage flying ash in melt element by pyrolytic, into flue gas,
Remaining substance melts together with associated additives, forms molten slurry；Centrifuge carries out centrifugal treating to molten slurry, fast after molten slurry centrifugation
Speed is cooled into cotton-wool body, while binder is sprayed on cotton-wool body by spraying mechanism, forms cotton-wool/binder mixture, then
By solidification, calendering formation, silicate product can be obtained, silicate product can be sold outside by further processing, be used as building
Material, whole system are generated without solid waste, are still needed to landfill disposal after solving the problems, such as traditional garbage flying ash processing, are realized
The harmless treatment and resource utilization of garbage flying ash, green, environmental protection.
It further include the air blower for the air blast into cotton collecting machine, preferably high pressure blower；Preferably, the cotton collecting machine with
Curing oven is connected to by third belt conveyor.Since cotton-wool/bonding agent mixture is often connected with each other, the setting of air blower can
While cotton-wool/bonding agent mixture is sent out cotton collecting machine, so that cotton-wool/bonding agent mixture is continuously into cotton collecting machine
It is interior.
Further, the binder is resin mixture liquor.
As a kind of embodiment of the utility model, in parts by mass, resin mixture liquor includes 300 parts of resin, ammonium hydroxide
35 parts, 36 parts of urea, 7 parts of ammonium sulfate, 0.6 part of silicone oil, 0.3 part of silane, 18 parts of mineral oil and suitable quantity of water.
The feed unit includes the garbage flying ash storehouse being sequentially communicated, batch mixer, solidification cooked flake wrapping machine, the first Belt Conveying
Machine, intermediate bin and the second belt conveyor integrate charging, compounding, mixing, feed intake, and melt being sent into after material cake of press
Unit can reduce fugitive dust, reduce the processing pressure of subsequent tail gas treating unit；Preferably, the discharge port in the garbage flying ash storehouse
Decrement weighing valve is installed, to realize quantitative mixing.
Preferably, the feed unit further includes several additive bins, the discharge port and first of several additive bins
Screw conveyor connection, the discharge port of the first screw conveyor are connected to garbage flying ash storehouse.
Spreader is equipped in the melt element, for accepting the material of the second belt conveyor input and being sprinkled into material
Melt element bottom, in this way, material more can be equably sprinkled into molten slurry, so that the material Flashmelt newly put into, decomposition,
Bearth precipitation is reduced to generate.
In some embodiments of the utility model, the melt element is electric smelter.
The exhanst gas outlet of the melt element is communicated with tail gas treating unit, which includes being sequentially communicated
Ceramic dust collector, desulfurizing tower, bag filter and air-introduced machine；It is equipped with below the Ceramic dust collector for accepting Ceramic dust collector
The discharge end of second screw conveyor of the dust of collection, second screw conveyor is connected to melt element.
The centrifuge is centrifugation Kun or centrifugal pan.
A kind of garbage flying ash processing method is carried out using garbage flying ash processing unit as described above, is included the following steps:
S1, raw mixture is inputted to melt element, heated, melting obtains molten slurry；
Wherein, by weight, the raw mixture includes 60-75 parts of garbage flying ash, 5-15 parts of alkali, boric acid 5-15
Part, 5-15 parts of sandstone, 1-10 parts of dolomite receive 1-10 parts of feldspar；
S2, using the molten slurry obtained in S1 as raw material, centrifugation, obtain cotton-wool body；
Binder is sprayed on cotton-wool body, obtains cotton-wool/bonding agent mixture；
S3, the cotton-wool obtained in S2/bonding agent mixture is successively solidified, calendering formation processing, obtains silicate
Product.
In S1, melting temperature is 1300-1600 DEG C, time 60-80h.
The utility model also provides a kind of silicate product, is made by garbage flying ash processing unit as described above,
Or it is made by garbage flying ash processing method as described above.
In some embodiments of the utility model, cotton-wool body per ton, binder 0.2-0.3 tons of sprinkling, preferably 0.25
Ton.
Preferably for the processing for the garbage flying ash that grate incinerator generates, by weight, the raw mixture packet
It includes 60-70 parts of garbage flying ash, 8-12 parts of alkali, 7-12 parts of boric acid, 5-11 parts of sandstone, 2-8 parts of dolomite, receive 1-6 parts of feldspar；It is excellent
Selection of land, the alkali are aluminium hydroxide and/or soda ash.
Preferably for the processing for the garbage flying ash that fluidized bed incinerator generates, by weight, the raw mixture
Including 65-75 parts of garbage flying ash, 5-12 parts of alkali, 5-12 parts of boric acid, 2-10 parts of sandstone, 1-7 parts of dolomite, the feldspar 1-7 that receives；It is excellent
Selection of land, the alkali are soda ash.
Fly for the ash that different waste incinerator generates, implement different mixing matching methods, by ash fly and ore and
Chemical addition agent is put into melt element after ratio mixes by weight, can with electrode, into electric furnace, material imports electric energy, with
Material molten slurry itself makees resistance, converts electrical energy into energy heats itself, when electric smelter is heated to 1300-1600 DEG C, flying dust
In the heavy metal that contains be cured and be dissolved in silicate molten slurry (molten slurry), material melts 60-80 under the conditions of 1300-1600 DEG C
After hour, it is imported into centrifuge, controls the revolving speed of centrifuge, molten slurry is centrifuged into cotton-wool body.Meanwhile being centrifuged into cotton-wool body
Afterwards, the binder that mixes is sprayed by spraying mechanism, the cotton-wool body of binder is stained under the blowing and penetrate of high-pressure blast, into collection cotton
Machine and third conveyor belt adjust third belt conveyor revolving speed, cotton-wool/binder mixing according to product thickness and weight demands
Body enters curing oven and is solidified.Solidification carries out chilling, calendering, trimming, cutting, packaging after coming out of the stove, and silicate system has just been made
Product can be used as the use of heat preservation rock product.
The utility model is by high-temperature fusion curing method nocuousness such as the heavy metal chromiums, lead, zinc contained in garbage flying ash
Substance is cured in silicate molten slurry, and leaching concentration is far below [hazardous waste judging standard leaching characteristic identification]
Rock wool (wadding) thermal insulation material or glass (silicate product) is made in molten slurry by the standard limited value in (GB5085.3-2007), with
Realize the harmless treatment and resource utilization of flying dust.The organic pollutants such as the dioxin in garbage flying ash quilt in melt element
Pyrolytic, the compounds such as sulphur, chlorine, hydrogen chloride after decomposition enter in flue gas, then are dusted to flue gas, dechlorination, desulfurization
Etc. purified treatments, ultra-clean discharge standard and dioxin can be reached thoroughly without detection.
Compared with prior art, the beneficial effects of the utility model are as follows:
1) device and method of the utility model can realize the harmless treatment and resource utilization of garbage flying ash, after being not necessarily to
Continuous landfill disposal；
2) heavy metal in garbage flying ash is effectively cured in silicate product by high-temperature fusion, efficiently, is stablized, nothing
The problem of need to worrying heavy metal pollution；
3) tail gas treating unit can realize effective purification of flue gas, and no pernicious gas is discharged, meanwhile, it will be useful in flue gas
Dust is sent into melt element and is further processed, and material utilization is high, so that processing unit is discharged without solid-state castoff substantially.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the garbage flying ash processing unit of the utility model the first embodiment.
Fig. 2 is the pictorial diagram of the heat preservation rock cotton wool products of the utility model the first embodiment.
Specific embodiment
The utility model is described in detail below with reference to embodiment.It should be noted that in the absence of conflict, this
The feature in embodiment and embodiment in utility model can be combined with each other.For sake of convenience, hereinafter such as occur "upper",
"lower", "left", "right" printed words only indicate consistent with the upper and lower, left and right direction of attached drawing itself, do not rise to limit to structure and make
With.
As shown in Figure 1, a kind of garbage flying ash processing unit, including be sequentially communicated feed unit, melt element, silicate
Production of articles unit, the silicate product production unit include
Centrifuge 24 is connected to the discharge port of melt element, and the molten slurry for exporting to melt element carries out centrifugal treating,
Obtain cotton-wool body；
Spraying mechanism (uses conventional spray mechanism), is set in centrifuge 24, bonds for spraying to cotton-wool body
Agent obtains cotton-wool/bonding agent mixture；
Cotton collecting machine 25, for collecting cotton-wool/bonding agent mixture of centrifuge output；
Curing oven 28 is connected to the discharge port of cotton collecting machine 25, for carrying out curing process to cotton-wool/bonding agent mixture,
Obtain cotton-wool/bonding agent solidified body；With
Calender 30 obtains silicate product for carrying out calendering formation processing to cotton-wool/bonding agent solidified body.
It further include the air blower 26 for the air blast into cotton collecting machine；Preferably, the cotton collecting machine 25 passes through with curing oven 28
Third belt conveyor 27 is connected to.
The feed unit includes that the garbage flying ash storehouse 2 being sequentially communicated, batch mixer 7, solidification cooked flake wrapping machine 9, the first belt are defeated
Send machine 10, intermediate bin 11 and the second belt conveyor 12, it is preferable that the discharge port in the garbage flying ash storehouse 2 is equipped with decrement and claims
Weight valve 6.
The feed unit further includes several additive bins 4, the discharge port and the first spiral transferring of several additive bins 4
Machine 5 is sent to be connected to, the discharge port of the first screw conveyor 5 is connected to garbage flying ash storehouse 2.
Spreader 14 is equipped in the melt element, for accepting material that the second belt conveyor 12 inputs and by material
It is sprinkled into melt element bottom.Spreader 14 can be moved in parallel all around under the control of mechanical arm 13, and material is spread into molten slurry,
The melt element is electric smelter.
The exhanst gas outlet of the melt element is communicated with tail gas treating unit, which includes being sequentially communicated
Ceramic dust collector 17, desulfurizing tower 19, bag filter 20 and air-introduced machine 21；It is equipped with below the Ceramic dust collector 17 for accepting
Second screw conveyor 18 of the dust that Ceramic dust collector is collected, the discharge end and melt element of second screw conveyor 18
Connection.
Waste incinerator is sent into garbage flying ash storehouse 2 by the first conveyance conduit 1,2 bottom of garbage flying ash storehouse, which is equipped with, to be subtracted
Flying dust can be put into batch mixer 7 by amount weighing valve 6 (FD941X type), Open valve.Mineralising ingredient and chemical addition agent
It is entered in additive bin 4 by the second conveyance conduit 3, then is matched correlation by the first screw conveyor 5 of storage bin bottom
Material is transported in batch mixer 7.Garbage flying ash and related ingredient are sufficiently stirred and are uniformly mixed in batch mixer 7, and bottom is passed through
The winged mixture of ash is transported in solidification cooked flake wrapping machine 9 by the revolving plow reclaimer 8 in portion, and the pressure of the solidification cooked flake wrapping machine is 0.1-
0.5MPa.Solidify the cake solids that flying dust mixture is pressed into 2mm-10mm thickness by cooked flake wrapping machine, which falls to automatically
On one belt conveyor 10 (preferably watt bucket belt conveyor), cake solids object is transported to centre by the first belt conveyor 10
In storehouse 11.Intermediate bin bottom is connected with adjustable second belt conveyor 12 (i.e. V-shape belt conveyer), by adjusting V-type
Cake solids are transported on spreader 14 by belt conveyor revolving speed, and spreader can left and right and front and back by the control of mechanical arm 13
It moves in parallel, and cake solids is uniformly spilt into electric smelter 15.With electrode, the material into furnace imports electric energy to electric smelter, with material
Molten slurry itself does resistance, converts electrical energy into thermal energy and heats itself, when electric smelter is heated to 1300-1600 DEG C, in flying dust
The heavy metal contained is cured and is fused in silicate molten slurry.After material melts 60-80 hours at a temperature of 1300-1600 DEG C,
It is imported into centrifuge 24 by horizontal fluid passage 23, the revolving speed for controlling centrifuge carries out being centrifuged into cotton-wool.After being centrifuged into cotton-wool,
The resin compound (binder) mixed is sprayed by pipeline again.It is stained with cotton-wool body the blowing in air blower 26 of resin compound
It penetrates down, into cotton collecting machine 25 and third belt conveyor 27, according to the thickness of product and adjustment of weight belt speed.Third skin
Cotton-wool/binder mixture is transported in curing oven 28 by band conveyer to be solidified, and is solidified and is carried out chilling after coming out of the stove, after chilling
Cotton-wool/binder mixture is sent to calender 30 by transmission belt 29 and carries out calendering formation, obtains silicate product.From pressure
Prolong be sent to again by transmission belt after machine comes out cut packing machine 31 cut, trimming and packaging, heat preservation rock has just been made
Cotton wool products, performance indicator are as shown in table 1.
1 heat preservation rock cotton wool products performance indicator of table
| Average fibre diameter, μm | 4.0-7.0 |
| Hot loading shrinkage temperature, DEG C >= | 650℃ |
| Shot content (particle diameter > 0.25mm) %≤ | 10.0 |
| Plate content of organics %≤ | 4.0 |
| Felt content of organics %≤ | 1.5 |
| Thermal coefficient [W/ (mK)]≤ | 0.044 |
Flue gas in electric smelter is discharged from top flue 16, is dusted into Ceramic dust collector 17, removes the dust to get off
Bottom is fallen to, is sent in electric smelter by the second screw conveyor 18 and carries out solution treatment again.Flue gas by dedusting from
Deduster top is discharged into desulfurizing tower 19 (dry method or semi-dry desulphurization tower), sprayed into desulfurizing tower powdered sodium bicarbonate,
The alkaline matters such as calcium oxide or calcium hydroxide, to slough the acidic materials such as sulphur, chlorine, chloride.In desulfurizing tower intracellular bicarbonate sodium, oxygen
Change the acidic materials such as the alkaline matters such as calcium or calcium hydroxide and sulphur, chlorine, chloride chemically react, generate calcium sulfate sodium with
These inorganic salts are discharged the inorganic salts such as calcium chloride sodium from desulfurization tower bottom, and the inorganic salts are non-hazardous can direct landfill disposal.Through
It crosses desulfurization and the processed flue gas of dechlorination and exits into bag filter 20 at the top of desulfurizing tower, carry out depth dedusting.By
Flue gas after depth dedusting is sent to chimney 22 by air-introduced machine 21 and puts to idle discharge, and it is newest super that flue gas at this time can reach country
Clean emission standard.Dioxin, no detection are not contained in flue gas.
Processing for the garbage flying ash that grate incinerator generates, by weight, raw mixture includes garbage flying ash
65 parts, 10 parts of sodium hydroxide, 9 parts of boric acid, 8 parts of sandstone, 5 parts of dolomite, receive 3 parts of feldspar, garbage flying ash passes through the first delivery pipe
Road 1 inputs, and unclassified stores is inputted by the second input channel 3.
Processing for the garbage flying ash that fluidized bed incinerator generates, by weight, raw mixture include that rubbish flies
Grey 70 parts, 8 parts of alkali, 8 parts of boric acid, 6 parts of sandstone, 4 parts of dolomite, feldspar 4 of receiving, garbage flying ash are defeated by the first conveyance conduit 1
Enter, unclassified stores is inputted by the second input channel 3.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the utility model,
Rather than limitation the scope of the utility model, after having read the utility model, those skilled in the art are practical new to this
The modification of the various equivalent forms of type each falls within the application range as defined in the appended claims.
Claims (9)
1. a kind of garbage flying ash processing unit, which is characterized in that including be sequentially communicated feed unit, melt element, silicate
Production of articles unit, the silicate product production unit include
Centrifuge (24), is connected to the discharge port of melt element, and the molten slurry for exporting to melt element carries out centrifugal treating, obtains
Obtain cotton-wool body；
Spraying mechanism is set in centrifuge (24), for spraying binder to cotton-wool body, obtains cotton-wool/bonding agent mixture；
Cotton collecting machine (25), for collecting cotton-wool/bonding agent mixture of centrifuge output；
Curing oven (28) is connected to the discharge port of cotton collecting machine (25), for carrying out curing process to cotton-wool/bonding agent mixture,
Obtain cotton-wool/bonding agent solidified body；With
Calender (30) obtains silicate product for carrying out calendering formation processing to cotton-wool/bonding agent solidified body.
2. garbage flying ash processing unit according to claim 1, which is characterized in that further include for the air blast into cotton collecting machine
Air blower (26).
3. garbage flying ash processing unit according to claim 1, which is characterized in that the cotton collecting machine (25) and curing oven
(28) it is connected to by third belt conveyor (27).
4. garbage flying ash processing unit according to claim 1, which is characterized in that the feed unit includes being sequentially communicated
Garbage flying ash storehouse (2), batch mixer (7), solidification cooked flake wrapping machine (9), the first belt conveyor (10), intermediate bin (11) and the second skin
Band conveyer (12).
5. garbage flying ash processing unit according to claim 4, which is characterized in that the discharging of the garbage flying ash storehouse (2)
Mouth is equipped with decrement weighing valve (6).
6. garbage flying ash processing unit according to claim 4, which is characterized in that the feed unit further includes several adds
Add agent storehouse (4), the discharge port of several additive bins (4) is connected to the first screw conveyor (5), the first screw conveyor
(5) discharge port is connected to garbage flying ash storehouse (2).
7. garbage flying ash processing unit according to claim 4, which is characterized in that be equipped with spreader in the melt element
(14), for accepting the material of the second belt conveyor (12) input and material being sprinkled into melt element bottom.
8. garbage flying ash processing unit according to claim 1-7, which is characterized in that the melt element is electricity
Smelting furnace.
9. garbage flying ash processing unit according to claim 1-7, which is characterized in that the cigarette of the melt element
Gas outlet has tail gas treating unit, which includes Ceramic dust collector (17), the desulfurizing tower being sequentially communicated
(19), bag filter (20) and air-introduced machine (21)；It is equipped with below the Ceramic dust collector (17) for accepting Ceramic dust collector
The discharge end of the second screw conveyor (18) of the dust of collection, second screw conveyor (18) is connected to melt element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821481765.1U CN208840196U (en) | 2018-09-11 | 2018-09-11 | A kind of garbage flying ash processing unit and silicate product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821481765.1U CN208840196U (en) | 2018-09-11 | 2018-09-11 | A kind of garbage flying ash processing unit and silicate product |
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| CN208840196U true CN208840196U (en) | 2019-05-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994055A (en) * | 2018-09-11 | 2018-12-14 | 湖南鹞翔环保能源科技有限公司 | A kind of garbage flying ash processing unit, processing method and silicate product |
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2018
- 2018-09-11 CN CN201821481765.1U patent/CN208840196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994055A (en) * | 2018-09-11 | 2018-12-14 | 湖南鹞翔环保能源科技有限公司 | A kind of garbage flying ash processing unit, processing method and silicate product |
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Granted publication date: 20190510 Termination date: 20200911 |