KR101645896B1 - Ca-based carbon dioxide removal using waste and by-product processing method - Google Patents
Ca-based carbon dioxide removal using waste and by-product processing method Download PDFInfo
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- KR101645896B1 KR101645896B1 KR1020150120634A KR20150120634A KR101645896B1 KR 101645896 B1 KR101645896 B1 KR 101645896B1 KR 1020150120634 A KR1020150120634 A KR 1020150120634A KR 20150120634 A KR20150120634 A KR 20150120634A KR 101645896 B1 KR101645896 B1 KR 101645896B1
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- carbon dioxide
- calcium carbonate
- based waste
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 80
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 80
- 239000002699 waste material Substances 0.000 title claims abstract description 55
- 239000006227 byproduct Substances 0.000 title claims abstract description 28
- 238000003672 processing method Methods 0.000 title 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 102
- 239000011575 calcium Substances 0.000 claims abstract description 57
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 230000010355 oscillation Effects 0.000 claims abstract description 11
- 230000007613 environmental effect Effects 0.000 claims abstract description 10
- 239000007791 liquid phase Substances 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 238000007664 blowing Methods 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 abstract description 25
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000004064 recycling Methods 0.000 abstract description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 14
- 235000011941 Tilia x europaea Nutrition 0.000 description 14
- 239000004571 lime Substances 0.000 description 14
- 239000000047 product Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 5
- 238000007654 immersion Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 239000004566 building material Substances 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 239000010815 organic waste Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a method for removing carbon dioxide using a Ca-based waste and a method for treating a by-product. More specifically, the present invention relates to a method for producing carbon dioxide, which is a byproduct after removing carbon dioxide from a Ca- The present invention relates to a method for removing carbon dioxide and treating by-products by using Ca-based waste for the purpose of recycling the used calcium carbonate as a raw material.
A concrete solution means of the present invention is that,
The present invention relates to a method for producing Ca-based waste, comprising the steps of: inputting Ca-based waste which is used and discarded in industrial and environmental fields; feeding the Ca-based waste to the mixing tank, A step of storing the carbon dioxide in the carbon dioxide removing step, a step of storing the carbon dioxide in the carbon dioxide removing step, and a step of storing the carbon dioxide in the carbon dioxide removing step, A calcium carbonate dewatering step of pouring the liquid calcium carbonate into the calcium carbonate in a dehydrated gel state in a dehydrator to pour the calcium carbonate of the liquid phase into the calcium carbonate in a dehydrated gel state, Calcium carbonate is dried with a microwave oscillation part to dry calcium carbonate which solidifies into a granular state. In the method for removing carbon dioxide and treating by-products using Ca-based waste,
The microwave oscillation unit includes:
And a microwave discharge opening is formed in the inclined surface in a shape of an upper light-tight narrowing shape that is inclined at one side while descending in a downward direction, And a wave guide provided with a mesh network is coupled to the outer circumferential surface of the discharge port. The present invention provides a method for removing carbon dioxide and treating byproducts using Ca-based waste,
According to the present invention configured as described above, the Ca-based waste used in the industrial field and the environmental field is mixed and stirred with water, and the liquid calcium carbonate produced after the carbon dioxide is removed is used as a multipurpose recycled raw material, Or by dewatering calcium carbonate produced in liquid form as needed to be used as a raw material for various purposes in a gel state or further dried and powdered to be used as a raw material for various purposes. As a result, environmentally friendly aspects and recycling It can be used as a multipurpose recycled raw material of calcium carbonate produced from a Ca-based waste material achieved at the same time.
Description
The present invention relates to a method for removing carbon dioxide using a Ca-based waste and a method for treating a by-product. More specifically, the present invention relates to a method for producing carbon dioxide, which is a byproduct after removing carbon dioxide from a Ca- The present invention relates to a method for removing carbon dioxide and treating byproducts by using Ca-based waste material for the purpose of recycling used calcium carbonate as a raw material.
Ca wastes, which are emitted in large quantities in industrial sites and environmental fields, especially chemical plants in particular, show strong alkalinity indicating high pH, and this is a serious problem of pollution such as water pollution and soil pollution.
Therefore, when buried in the ground, it is regulated that the PH should be adjusted to the environmental standard close to neutrality.
In the meantime, studies have been made on a method of lowering the pH of the product to an environmental standard value. Among them, a method using an argillaceous stone as an additive is disclosed in Japanese Patent No. 396390, Which is a high temperature baking process.
In order to solve this problem, the technical point of the patent registration No. 10-0534239 entitled " a method for manufacturing a multipurpose recycled raw material of pulp lime using loess,
"Natural reddish brown loess is added to pulverized
Mixed 20 to 40 percent of the mixed loess powder was added to the mixer, and the mixture was heated to 80 to 100 ° C to dry to a moisture content of 10%. The mixture was subjected to a crushing process at 300 mesh or higher and a cooling process at room temperature The present invention proposes a method for producing a multi-purpose recycled raw material of pulp lime using yellow clay. &Quot;
As another prior art document, the technical point of the patent application '10-2004-0007383 entitled' Lime Sludge and Organic Lime Fertilizer Using Organic Waste and Organic Lime Fertilizer and Its Manufacturing Method '
(a) a quicklime production step of producing calcined lime by calcining a lime sludge at a temperature of 500 ° C or higher;
(b) adding and mixing 5 parts by weight to 40 parts by weight of solid matter of organic waste per 100 parts by weight of the product of step (a);
(c) assembling and molding the product of step (b);
(d) drying the product of step (c) by the heat of hydration of the product of step (a); &Quot; a method for producing a calcareous fertilizer using a lime sludge and an organic waste "
Another prior art document, Patent No. 10-1127530, entitled " Method for manufacturing a multicolor clay brick using slaked lime "
"Yellow lime or kaolin pulverized with an average particle diameter of 0.85 mm (20 Mesh) was mixed with lime powder pulverized to an average particle size of 150 탆 (100 Mesh) at a ratio selected from 5, 10, 20, 30 and 40% It is made to be 60, 70, 80, 90, 95% by weight according to the slump ratio and kneaded with water so that the water content of the kneaded product becomes 15 ~ 20% by weight. Extruded at a pressure of 2.0 to 3.0 kgf / m < 2 > under a vacuum, extruded and molded into a brick shape, dried for at least 50 hours in a drying chamber at an inlet temperature of 20 ± 5 ° C and an outlet temperature of 80 ± 10 ° C for a maximum of 70 hours, A clay brick at 300 ° C maximum temperature 1250 ° C for at least 36 hours for at least 56 hours in a tunnel kiln, or by firing and firing.
However, the above-mentioned prior art data are limited to the mixing of the raw materials or the manufacture of the specified products in the pulverized calcium lime, which is the Ca-based waste, and there is a problem in that the process, particularly the use of the lime is limited.
SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a multi-purpose recycled raw material, which is obtained by mixing Ca- In other words, it can be used as raw materials for construction materials and various other purposes, or dehydrated calcium carbonate produced in liquid form as needed, to be used as a raw material for various purposes in a gel state, further dried and powdered to be used as raw materials for various purposes, The present invention provides a method for removing carbon dioxide and treating byproducts using a Ca-based waste that simultaneously achieves an aspect and a recycling aspect.
In order to accomplish the above object, according to a first aspect of the present invention,
The present invention relates to a method for producing Ca-based waste, comprising the steps of: inputting Ca-based waste which is used and discarded in industrial and environmental fields; feeding the Ca-based waste to the mixing tank, A step of storing the carbon dioxide in the carbon dioxide removing step, a step of storing the carbon dioxide in the carbon dioxide removing step, and a step of storing the carbon dioxide in the carbon dioxide removing step, A calcium carbonate dewatering step of pouring the liquid calcium carbonate into the calcium carbonate in a dehydrated gel state in a dehydrator to pour the calcium carbonate of the liquid phase into the calcium carbonate in a dehydrated gel state, Calcium carbonate is dried with a microwave oscillation part to dry calcium carbonate which solidifies into a granular state. In the method for removing carbon dioxide and treating by-products using Ca-based waste,
The microwave oscillation unit includes:
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And a microwave discharge opening is formed in the inclined surface in a shape of an upper light-tight narrowing shape that is inclined at one side while descending in a downward direction, And a wave guide provided with a mesh network is coupled to the outer circumferential surface of the discharge port. The present invention can achieve the above-mentioned object by constituting a constitutional feature of the carbon dioxide removal and by-product treatment method using Ca-based waste.
According to the present invention configured as described above, the Ca-based waste used in the industrial field and the environmental field is mixed and stirred with water, and the liquid calcium carbonate produced after the carbon dioxide is removed is used as a multi-purpose recycled raw material, Or by dewatering calcium carbonate produced in liquid form as needed to be used as a raw material for various applications in a gel state or further dried and powdered to be used as a raw material for various purposes so that the environmentally friendly and recyclable aspects It can be used as a multipurpose recycled raw material of calcium carbonate produced from a Ca-based waste material achieved at the same time.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. Various changes and modifications may be made by those skilled in the art.
FIG. 1 is a flow chart of a method for removing carbon dioxide and treating by-products using a Ca-based waste according to the present invention,
FIG. 2 is a flow chart showing the addition of the crushing step in the method of removing carbon dioxide and using by-products using the Ca-
3 is a general schematic view of a method for removing carbon dioxide and treating by-products using the Ca-based waste according to the present invention,
FIG. 4 is a general schematic view showing the addition of a reaction tank in the method of removing carbon dioxide and using by-products using the Ca-
5 is a perspective view schematically showing a carbon dioxide removal step in the method of removing carbon dioxide and by-products using the Ca-based waste according to the present invention,
FIG. 6 is a perspective view illustrating only the blowing means connected to the reaction vessel among the structures of the carbon dioxide removal step in the carbon dioxide removal and by-product treatment using the Ca-
FIG. 7 is a schematic cross-sectional view of the carbon dioxide removal step in the carbon dioxide removal and by-product treatment method using the Ca-
8 is a perspective view of the microwave oscillation unit in the step of drying calcium carbonate in the method of removing carbon dioxide and using by-products of the Ca-based waste according to the present invention.
Hereinafter, a method for removing carbon dioxide and using a by-product using the Ca-based waste according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a flow chart of a method for removing carbon dioxide and by-products using the Ca-based waste according to the present invention. FIG. 2 is a flowchart of a method for removing carbon dioxide and using by- 4 is a schematic view showing the addition of a reaction vessel in the method of removing carbon dioxide and by-products using the Ca-based waste according to the present invention, and Fig. 5 is a schematic view showing the Ca- FIG. 6 is a perspective view schematically showing a carbon dioxide removal step and a by-product removal method in a method for removing carbon dioxide using byproducts. FIG. 6 is a cross- FIG. 7 is a perspective view showing only the blowing means, FIG. 8 is a schematic cross-sectional view of a carbon dioxide removal and by-product treatment method using a Ca-based waste according to the present invention. FIG. 8 is a perspective view of a microwave oscillation unit in a calcium carbonate- to be.
[Ca-based waste input step] ----- S1
This phase is the step of inputting Ca waste which is used in industrial field and environmental field and discarded, and most of it is put into gas form, powder form or sometimes solid form.
In the case of the solidified form as described above, the solidified Ca-based waste is transported and crushed by a screw or the like before the mixing and stirring step (S3) to be described later, and is then pulverized (S2) may be added.
[Mixing Stirring Step] ----- S3
The added Ca-based waste is transferred to a mixing tank (T), and water is added thereto, followed by stirring and mixing with an agitator (M). As a result, calcium hydroxide is mostly produced when the Ca-based waste and water are combined.
[Stirring storage step] ----- S4
After the mixing and stirring step (S3), the mixture is stirred again and transferred to the carbon dioxide removing step (S5) described below.
[Carbon dioxide removal step] ----- S5
After the stirring and storing step (S4), there is provided a reaction tank (200) for removing carbon dioxide introduced by the blowing means (100)
As shown in FIGS. 5 to 7, in the carbon dioxide removing step (S5)
A blowing means 100 for supplying carbon dioxide,
And the reaction tank (200) connected to one end of the blowing means (100)
The
The
Meanwhile, the
Preferably, the
The
More preferably, as shown in FIG. 4, a plurality of
According to the present invention configured as described above, the carbon dioxide is introduced into the
The produced calcium carbonate (CaCo 3) in combination with the CO 2 Calcium hydroxide (Ca (OH) 2) is a most for a Ca-based waste, CO 2 removed the water mixture to be supplied from the stirring storing step (S4) . This will be described later.
Meanwhile, the blowing means 100 is provided as a means for introducing carbon dioxide into the
As shown in the drawing, the blowing means 100 adopts a connecting
That is, the
The speed and flow rate of the fluid flowing through the
A
Here, as shown in the figure, the
That is, when the fluid pressure, the flow rate and the flow rate of the carbon dioxide supplied from the blowing means 100 pass through the
The
Each of the
The carbon dioxide is guided from the
The reaction at this time is made with calcium hydroxide (Ca (OH) 2 ), and the reaction formula is as follows.
Ca (OH) 2 + CO 2 -> CaCO 3 + H 2 O
The connecting
The
Accordingly, when such a structure is provided, the carbon dioxide introduced from the blowing means 100 is supplied to the lower end of the
Meanwhile, in the stirring and storing step (S4), a multi-stage injection is performed after bypassing upward flow by a pump (P).
That is, the Ca-based waste mixed with the water to be supplied and supplied to the
Here, the
Therefore, the Ca-based waste mixed with water flowing by bypass to the
That is, due to the hydraulic pressure and the flow rate of carbon dioxide, it is impossible to sufficiently react with the Ca-based waste mixed with water. To solve this problem, the gas phase carbon dioxide forcedly supplied into the Ca- And is convected upward toward the upper side of the
In addition, since the
The
In addition, a
[Calcium carbonate storage step] ----- S6
After the carbon dioxide removing step (S5), the liquid calcium carbonate that is pumped and stored by the pump (P) is stored.
The liquid calcium carbonate thus stored is mixed with raw materials for various applications, for example, as a building material, or used as a raw material for producing other products.
[Calcium carbonate dehydration step] ----- S7
On the other hand, when calcium carbonate in a liquid state is not used and the user desires calcium carbonate in a gel state, the calcium carbonate in the liquid phase is pumped by the injection pump P1 as in the present step so that the dehydrated gel- It can be made of calcium carbonate and can meet the needs of users. It can also be used as a raw material for manufacturing desirable products mixed with various building materials and other raw materials of products.
[Calcium carbonate drying step] ----- S8
In this step, as in the case of the dehydration step (S7), if the user desires to solidify the granule or the chip form, the user desires to dry the dehydrated gel calcium carbonate with the
Preferably, drying by hot air in the step (S8) of drying the calcium carbonate is also applicable.
In particular, the
The microwave is a rectangular shape that oscillates microwave into the housing (H) in a multistage manner in the housing (H) of the calcium carbonate drying step (S8) A structure in which a
The present invention having the above-described constitution is used in industrial field and environment fields. The Ca-based waste which is used in the industrial field and the environment is mixed and stirred with water, and then the liquid calcium carbonate produced after the carbon dioxide removal is used as a multipurpose recycled raw material, Or if necessary, dehydrated calcium carbonate in liquid form to be used as a raw material for various purposes in a gel state or further dried and powdered to be used as a raw material for various purposes, thereby achieving environment-friendly aspects and recycling aspects at the same time As can be done,
As shown in FIGS. 1 to 4, the Ca-based waste used in the industrial field and the environmental field and discarded is transferred to the mixing tank T and water is added thereto. The mixture is stirred and mixed with the stirrer M, It is possible to produce calcium carbonate by removing the carbon dioxide injected by the blowing means and to store it in a liquid state, to store it in a gel state through a dehydrator, to store it in solid form after drying, in solid form or in powder form, It is a useful technology to enable users to recycle calcium carbonate which is to be discarded by mixing with various building materials and raw materials of products.
100; Blowing means 110; Connection
120; A
131;
200;
220; A
240; A
820;
823; A
H; Housing M; agitator
T; Mixing tank P; Pump
P1; Injection pump W; Dehydrator
S1; Ca-based waste input step S2; Crushing step
S3; Mixing and mixing Ca-based waste and water Step S4; Stirring storage step
S5; Carbon dioxide removal step S6; Calcium carbonate storage step
S7; Calcium carbonate dehydration step S8; Calcium carbonate drying step
S9; Powdering step
Claims (10)
The microwave oscillation unit 800 includes:
The microwave is a rectangular shape that oscillates microwave into the housing (H) in a multistage manner in the housing (H) of the calcium carbonate drying step (S8) And a waveguide 820 having a mesh net 824 is coupled to an outer circumferential surface of the discharge port 823 in a shape of a light-narrowed cone and a microwave discharge port 823 is drilled in the inclined plane, Removal and treatment of by-products.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107128963A (en) * | 2017-07-10 | 2017-09-05 | 长江师范学院 | A kind of method for the spherical ball aragonite calcium carbonate that utilization electroslag prepared sizes distribution is concentrated |
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KR20040007383A (en) | 2003-12-30 | 2004-01-24 | 규 재 유 | Lime and Organic Lime Fertilizer Utilizing Lime Sludge and Organic Wastes and Its Manufacturing Method |
KR20050088425A (en) * | 2002-12-11 | 2005-09-06 | 솔베이 케미칼스 게엠베하 | Ultra-dry calcium carbonate |
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2015
- 2015-08-27 KR KR1020150120634A patent/KR101645896B1/en active IP Right Grant
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Cited By (1)
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CN107128963A (en) * | 2017-07-10 | 2017-09-05 | 长江师范学院 | A kind of method for the spherical ball aragonite calcium carbonate that utilization electroslag prepared sizes distribution is concentrated |
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