CN112960923A - Method for treating solid waste fly ash - Google Patents
Method for treating solid waste fly ash Download PDFInfo
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- CN112960923A CN112960923A CN202110268159.1A CN202110268159A CN112960923A CN 112960923 A CN112960923 A CN 112960923A CN 202110268159 A CN202110268159 A CN 202110268159A CN 112960923 A CN112960923 A CN 112960923A
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- fly ash
- solid waste
- waste
- feeding
- decomposing furnace
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- 239000010881 fly ash Substances 0.000 title claims abstract description 83
- 239000002910 solid waste Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000428 dust Substances 0.000 claims abstract description 31
- 238000003860 storage Methods 0.000 claims abstract description 26
- 239000002920 hazardous waste Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000011343 solid material Substances 0.000 claims abstract description 14
- 239000002956 ash Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 21
- 239000002699 waste material Substances 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 6
- 238000004056 waste incineration Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000004568 cement Substances 0.000 description 33
- 239000011398 Portland cement Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000010755 BS 2869 Class G Substances 0.000 description 1
- 239000011401 Portland-fly ash cement Substances 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for treating solid waste fly ash, which is characterized in that hazardous waste is divided into solid waste and fly ash; solid waste separated from hazardous waste is classified and stored and then is sent into a raw material mill, gas generated by the raw material mill is subjected to SNCR treatment and then is dedusted by a bag-type dust remover, and is discharged by kiln tail gas, and dedusted ash returns to clinker; feeding the solid material in the raw material mill into a preheater, and feeding the solid material into a decomposing furnace; the flying ash separated from the hazardous waste is screened and crushed and then sent into a flying ash storage bin 1 and a flying ash storage bin 2, and is conveyed into a decomposing furnace by air force; the material treated by the decomposing furnace enters from the kiln tail of the rotary kiln, and the clinker is conveyed out from the kiln head of the rotary kiln after treatment. The invention realizes harmless disposal of solid waste and intensification of solid waste resource utilization; the high tail gas treatment investment of a common hazardous waste incineration device is avoided, and the maximization of social resource utilization can be realized; the heavy metal contained in the solid waste has the advantage of higher stability after being solidified by high-temperature melt.
Description
Technical Field
The invention relates to the technical field of cement production, in particular to a method for treating solid waste fly ash.
Background
Cement is a powdered hydraulic inorganic cementitious material. The water is added and stirred to form slurry which can be hardened in the air or in the water and can firmly bond sand, stone and other materials together.
Early lime and pozzolan mixtures were similar to modern lime and pozzolan cements, and concrete made by cementing crushed stone with them was not only stronger but also resistant to attack by fresh water or salt-containing water after hardening. As an important cementing material, the high-performance cement is widely applied to engineering such as civil construction, water conservancy, national defense and the like for a long time.
The cement is divided into the following components according to the application and performance:
general cement: the cement is commonly used in civil engineering and building engineering. The general cement mainly comprises the following components: six major classes of cement specified in GB 175-2007, namely portland cement, ordinary portland cement, portland slag cement, pozzolanic portland cement, portland fly ash cement and composite portland cement.
Special cement: cements having particular properties or uses, such as class G oil well cements, rapid hardening portland cements, road portland cements, aluminate cements, sulphoaluminate cements, and the like.
For the production process of the traditional cement industry, the treatment of the solid waste does not accord with the environmental protection principle, the treatment of the solid waste causes high energy consumption and large resource consumption of the cement industry, and the excess contradiction of the cement productivity causes the cost of the cement production to be increased and the benefit to be reduced.
Disclosure of Invention
The invention aims to provide a method for treating solid waste fly ash, which is characterized in that solid waste is cooperatively treated by a rotary kiln production line, and the solid waste is adopted to replace partial raw material, so that harmless treatment of the solid waste and intensification of solid waste resource utilization are realized; the process for treating the hazardous waste by using the cement kiln in a coordinated manner fully utilizes the high-temperature and high-heat characteristics of the rotary kiln, and does not have obvious influence on a rotary kiln system under the condition of project treatment scale; the alkaline environment and the high-dust environment of the rotary kiln are fully utilized, the existing tail gas purification facilities are utilized, the high tail gas treatment investment of a common hazardous waste incineration device is avoided, and the maximization of the utilization of social resources can be realized; heavy metal that solid waste contains has the advantage of higher stability through high temperature fuse-element solidification than adopting cement colloid solidification generally, has solved the processing of solid waste and is not conform to the former rule of environmental protection, leads to the high energy consumption of cement trade and big resource consumption to the processing of solid waste, and the surplus spear's of cement productivity problem.
In order to achieve the purpose, the invention provides the following technical scheme: a method for treating solid waste fly ash, which comprises the following steps: 1 screw pump and 1 45KW Roots blower are arranged, a Q235-A thick-wall seamless steel pipe is adopted as a pipeline, and the solid waste fly ash is conveyed from a fly ash bin to enter a kiln tail decomposing furnace high-temperature area for incineration disposal by adopting pneumatic conveying;
2 fly ash storage bins: Φ 8 × 12, 600T;
1 bucket elevator: 0-35T/h;
2 sets of bag-type dust remover: the air volume is 5000m 3/h;
1, crusher: 60 t/h;
2 rotor scales: 30 t/h.
As a further scheme of the invention, the fly ash feeding points are as follows:
the flying ash feeding point is arranged at the decomposing furnace, the inside of the decomposing furnace into which the flying ash is fed is subjected to SNCR denitration, the discharge of the decomposing furnace passes through the waste heat boiler, and the flue gas is treated by the bag-type dust collector and then discharged through the flue gas discharging device.
As a further scheme of the invention, the incineration fly ash treatment process comprises the following steps:
s1, the fly ash collected by the bag-type dust collector enters a fly ash storage bin 1;
s2, conveying the bag materials from the transport vehicle to a vibrating screen through an electric hoist, separating fly ash and solid materials through the vibrating screen, feeding the fly ash into a fly ash feeding bin, and feeding the solid materials into a crusher for crushing;
s3, conveying the fly ash in the fly ash feeding bin to a fly ash storage bin 2 through a bucket elevator;
and S4, the fly ash in the fly ash storage bin 1 and the fly ash storage bin 2 respectively enter the rotor scale through a channel provided with an electric gate valve, and are quantitatively weighed by the rotor scale and then conveyed to the kiln tail decomposition furnace by a pneumatic conveying pump.
As a further scheme of the invention, the rotary kiln is used for cooperatively treating the dangerous waste firing section process:
s1, separating the dangerous waste into solid waste and fly ash;
s2, classified storage of solid waste separated from hazardous waste, sending the solid waste into a raw material mill, carrying out SNCR treatment on gas generated by the raw material mill, then carrying out dust removal by a bag-type dust remover, merging the gas into kiln tail gas for emission, and returning dust removal ash into clinker; feeding the solid material in the raw material mill into a preheater, and feeding the solid material into a decomposing furnace;
s3, screening and crushing the fly ash separated from the hazardous waste, sending the fly ash into a fly ash storage bin 1 and a fly ash storage bin 2, and pneumatically conveying the fly ash into a decomposing furnace;
s4, feeding the material treated by the decomposing furnace from the tail of the rotary kiln, and conveying clinker from the kiln head of the rotary kiln after treatment;
s5, enabling the gas in the rotary kiln to enter a humidifying tower from a preheater through a smoke chamber of a decomposing furnace, performing SNCR treatment, then removing dust by a bag-type dust remover, and merging the dust into tail gas of the kiln for emission;
the processing workshop of the solid waste and the fly ash separated from the dangerous waste is closed and is pumped by negative pressure.
Compared with the prior art, the invention has the following beneficial effects: the solid waste is cooperatively treated by utilizing a rotary kiln production line, and the solid waste is adopted to replace part of raw material, so that the harmless treatment of the solid waste and the intensification of the resource utilization of the solid waste are realized; the process for treating the hazardous waste by using the cement kiln in a coordinated manner fully utilizes the high temperature and high heat of the cement kiln, has high thermal stability, and does not have obvious influence on a cement kiln system under the project treatment scale; the project makes full use of the alkaline environment and the high-dust environment of the cement kiln, makes full use of the existing tail gas purification facilities, avoids the high tail gas treatment investment of a common hazardous waste incineration device, and can realize the maximization of the utilization of social resources; heavy metals in the solid waste fly ash of the project are solidified by high-temperature melt, and have higher stability than the heavy metals solidified by cement colloid.
Drawings
FIG. 1 is a schematic view of the position of the fly ash addition point of the present invention;
FIG. 2 is a flow chart of the incineration fly ash treatment process of the invention;
FIG. 3 is a process flow diagram of a firing section of the rotary kiln for co-processing hazardous wastes according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The embodiment provided by the invention comprises the following steps: a method for treating solid waste fly ash, which comprises the following steps: 1 screw pump and 1 45KW Roots blower are arranged, a Q235-A thick-wall seamless steel pipe is adopted as a pipeline, pneumatic transmission is adopted, and solid waste fly ash is conveyed from a fly ash bin to enter a kiln tail decomposing furnace high-temperature area for incineration disposal;
2 fly ash storage bins: Φ 8 × 12, 600T;
1 bucket elevator: 0-35T/h;
2 sets of bag-type dust remover: the air volume is 5000m 3/h;
1, crusher: 60 t/h;
2 rotor scales: 30 t/h.
Example 2
Referring to fig. 1, an embodiment of the present invention: a method for treating solid waste fly ash comprises the following steps:
the flying ash feeding point is arranged at the decomposing furnace, the inside of the decomposing furnace into which the flying ash is fed is subjected to SNCR denitration, the discharge of the decomposing furnace passes through the waste heat boiler, and the flue gas is treated by the bag-type dust collector and then discharged through the flue gas discharging device.
Example 3
Referring to fig. 2, an embodiment of the present invention: a method for treating solid waste fly ash comprises the following steps:
s1, the fly ash collected by the bag-type dust collector enters a fly ash storage bin 1;
s2, conveying the bag materials from the transport vehicle to a vibrating screen through an electric hoist, separating fly ash and solid materials through the vibrating screen, feeding the fly ash into a fly ash feeding bin, and feeding the solid materials into a crusher for crushing;
s3, conveying the fly ash in the fly ash feeding bin to a fly ash storage bin 2 through a bucket elevator;
and S4, the fly ash in the fly ash storage bin 1 and the fly ash storage bin 2 respectively enter the rotor scale through a channel provided with an electric gate valve, and are quantitatively weighed by the rotor scale and then conveyed to the kiln tail decomposition furnace by a pneumatic conveying pump.
Example 4
Referring to fig. 3, an embodiment of the present invention: a method for treating solid waste fly ash, a rotary kiln co-disposes a hazardous waste firing process:
s1, separating the dangerous waste into solid waste and fly ash;
s2, classified storage of solid waste separated from hazardous waste, sending the solid waste into a raw material mill, carrying out SNCR treatment on gas generated by the raw material mill, then carrying out dust removal by a bag-type dust remover, merging the gas into kiln tail gas for emission, and returning dust removal ash into clinker; feeding the solid material in the raw material mill into a preheater, and feeding the solid material into a decomposing furnace;
s3, screening and crushing the fly ash separated from the hazardous waste, sending the fly ash into a fly ash storage bin 1 and a fly ash storage bin 2, and pneumatically conveying the fly ash into a decomposing furnace;
s4, feeding the material treated by the decomposing furnace from the tail of the rotary kiln, and conveying clinker from the kiln head of the rotary kiln after treatment;
s5, enabling the gas in the rotary kiln to enter a humidifying tower from a preheater through a smoke chamber of a decomposing furnace, performing SNCR treatment, then removing dust by a bag-type dust remover, and merging the dust into tail gas of the kiln for emission;
the processing workshop of the solid waste and the fly ash separated from the dangerous waste is closed and is pumped by negative pressure.
The solid waste is cooperatively treated by utilizing a rotary kiln production line, and the solid waste is adopted to replace part of raw material, so that the harmless treatment of the solid waste and the intensification of the resource utilization of the solid waste are realized; the process of treating the hazardous waste by using the cement kiln in a coordinated manner fully utilizes the high temperature and high heat of the cement kiln, has very high thermal stability, and does not have obvious influence on a cement kiln system under the project treatment scale; the project makes full use of the alkaline environment and the high-dust environment of the cement kiln, makes full use of the existing tail gas purification facilities, avoids the high tail gas treatment investment of a common hazardous waste incineration device, and can realize the maximization of the utilization of social resources; heavy metals in the solid waste fly ash of the project are solidified by high-temperature melt, and have higher stability than the heavy metals solidified by cement colloid.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A method for treating solid waste fly ash is characterized by comprising the following steps: the apparatus comprises: 1 screw pump and 1 45KW Roots blower are arranged, a Q235-A thick-wall seamless steel pipe is adopted as a pipeline, pneumatic transmission is adopted, and solid waste fly ash is conveyed from a fly ash bin to enter a kiln tail decomposing furnace high-temperature area for incineration disposal;
2 fly ash storage bins: Φ 8 × 12, 600T;
1 bucket elevator: 0-35T/h;
2 sets of bag-type dust remover: the air volume is 5000m 3/h;
1, crusher: 60 t/h;
2 rotor scales: 30 t/h.
2. The method of claim 1, wherein the method comprises the following steps: feeding points of fly ash:
the flying ash feeding point is arranged at the decomposing furnace, the inside of the decomposing furnace into which the flying ash is fed is subjected to SNCR denitration, the discharge of the decomposing furnace passes through the waste heat boiler, and the flue gas is treated by the bag-type dust collector and then discharged through the flue gas discharging device.
3. The method of claim 1, wherein the method comprises the following steps: the incineration fly ash treatment process comprises the following steps:
s1, the fly ash collected by the bag-type dust collector enters a fly ash storage bin 1;
s2, conveying the bag materials from the transport vehicle to a vibrating screen through an electric hoist, separating fly ash and solid materials through the vibrating screen, feeding the fly ash into a fly ash feeding bin, and feeding the solid materials into a crusher for crushing;
s3, conveying the fly ash in the fly ash feeding bin to a fly ash storage bin 2 through a bucket elevator;
and S4, the fly ash in the fly ash storage bin 1 and the fly ash storage bin 2 respectively enter the rotor scale through a channel provided with an electric gate valve, and are quantitatively weighed by the rotor scale and then conveyed to the kiln tail decomposing furnace by a pneumatic conveying pump.
4. The method of claim 1, wherein the method comprises the following steps: the process of the firing section of the rotary kiln for cooperatively disposing the hazardous waste comprises the following steps:
s1, separating the dangerous waste into solid waste and fly ash;
s2, classified storage of solid waste separated from hazardous waste, sending the solid waste into a raw material mill, carrying out SNCR treatment on gas generated by the raw material mill, then carrying out dust removal by a bag-type dust remover, merging the gas into kiln tail gas for emission, and returning dust removal ash into clinker; feeding the solid material in the raw material mill into a preheater, and feeding the solid material into a decomposing furnace;
s3, screening and crushing the fly ash separated from the hazardous waste, sending the fly ash into a fly ash storage bin 1 and a fly ash storage bin 2, and pneumatically conveying the fly ash into a decomposing furnace;
s4, feeding the material treated by the decomposing furnace from the tail of the rotary kiln, and conveying clinker from the head of the rotary kiln after treatment;
s5, enabling the gas in the rotary kiln to enter a humidifying tower from a preheater through a smoke chamber of a decomposing furnace, performing SNCR treatment, then removing dust by a bag-type dust remover, and merging the dust into tail gas of the kiln for emission;
the processing workshop of the solid waste and the fly ash separated from the dangerous waste is closed and is pumped by negative pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110268159.1A CN112960923A (en) | 2021-03-11 | 2021-03-11 | Method for treating solid waste fly ash |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110268159.1A CN112960923A (en) | 2021-03-11 | 2021-03-11 | Method for treating solid waste fly ash |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557500A (en) * | 2012-01-16 | 2012-07-11 | 郑慧 | Cement kiln co-processing process for hazardous solid wastes |
| CN106678831A (en) * | 2016-12-30 | 2017-05-17 | 安徽海螺川崎工程有限公司 | Cement kiln fly ash coprocessing system and processing process of cement kiln fly ash coprocessing system |
| CN206347577U (en) * | 2016-12-30 | 2017-07-21 | 安徽海螺川崎工程有限公司 | A kind of cement kiln collaboration processing flying dust system |
| CN110906342A (en) * | 2018-09-14 | 2020-03-24 | 南京凯盛开能环保能源有限公司 | System and method for comprehensively treating hazardous waste by using cement kiln |
-
2021
- 2021-03-11 CN CN202110268159.1A patent/CN112960923A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557500A (en) * | 2012-01-16 | 2012-07-11 | 郑慧 | Cement kiln co-processing process for hazardous solid wastes |
| CN106678831A (en) * | 2016-12-30 | 2017-05-17 | 安徽海螺川崎工程有限公司 | Cement kiln fly ash coprocessing system and processing process of cement kiln fly ash coprocessing system |
| CN206347577U (en) * | 2016-12-30 | 2017-07-21 | 安徽海螺川崎工程有限公司 | A kind of cement kiln collaboration processing flying dust system |
| CN110906342A (en) * | 2018-09-14 | 2020-03-24 | 南京凯盛开能环保能源有限公司 | System and method for comprehensively treating hazardous waste by using cement kiln |
Non-Patent Citations (1)
| Title |
|---|
| 雍毅等: "《市政污泥特性与再生利用引论》", 31 May 2016, 中国环境出版社 * |
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Application publication date: 20210615 |