CN111043606A - Furnace building method for hazardous waste treatment rotary kiln - Google Patents
Furnace building method for hazardous waste treatment rotary kiln Download PDFInfo
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- CN111043606A CN111043606A CN201911401815.XA CN201911401815A CN111043606A CN 111043606 A CN111043606 A CN 111043606A CN 201911401815 A CN201911401815 A CN 201911401815A CN 111043606 A CN111043606 A CN 111043606A
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- rotary kiln
- kiln
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002920 hazardous waste Substances 0.000 title claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 65
- 239000000843 powder Substances 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000011819 refractory material Substances 0.000 claims abstract description 17
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 12
- 239000010431 corundum Substances 0.000 claims abstract description 12
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- 229910052582 BN Inorganic materials 0.000 claims abstract description 6
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 6
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052849 andalusite Inorganic materials 0.000 claims abstract description 6
- 239000011230 binding agent Substances 0.000 claims abstract description 6
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 6
- 238000004873 anchoring Methods 0.000 claims description 20
- 238000010276 construction Methods 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 16
- 238000005507 spraying Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- DNXNYEBMOSARMM-UHFFFAOYSA-N alumane;zirconium Chemical group [AlH3].[Zr] DNXNYEBMOSARMM-UHFFFAOYSA-N 0.000 claims description 4
- 239000007767 bonding agent Substances 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 4
- 230000003670 easy-to-clean Effects 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 48
- 239000011449 brick Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/48—Preventing corrosion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/28—Arrangements of linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a method for building a rotary kiln for hazardous waste treatment, which adopts a mode of alternately constructing a composite prefabricated member and a pouring material to build the rotary kiln, wherein the rotary kiln comprises a rotary kiln steel shell, a kiln head, a kiln tail and a kiln, the rotary kiln steel shell is built in three layers from outside to inside, and the rotary kiln steel shell comprises a 10 mm refractory blanket, a 70 mm heat-insulating layer and a 230 mm working layer. In the aspect of material selection, factors such as thermal shock stability, wear resistance, strength and the like are fully considered, the erosion resistance of the material is mainly considered, and the apparent porosity of the whole refractory material is reduced in the aspect of particle grading design; the working layer of the invention is thus: the aggregate adopts plate-shaped corundum; the matrix part adopts chrome corundum, zirconium mullite and boron nitride, and the binding agent adopts composite micro powder and superfine powder; insulating layer: the aggregate is light mullite aggregate and alumina hollow spheres; the matrix part adopts andalusite and the like and is combined by composite micro powder.
Description
Technical Field
The invention relates to the technical field of rotary kilns, in particular to a furnace building method of a dangerous waste treatment rotary kiln.
Background
The hazardous waste is incinerated in a rotary kiln, generally through the processes of drying, pyrolysis, combustion, burnout and the like, wherein harmful components (such as fluorine, sulfur, phosphorus, chlorine and alkali metal compounds) are fully decomposed under the action of high temperature to form high-temperature smoke and low-melting substances. The flue gas and the low-melting matters have complex physical and chemical reactions with the refractory materials built in the rotary kiln at high temperature, and cause erosive damage to the refractory materials; the refractory materials damaged by erosion are easy to crack after running for a period of time, brick joints are loose, and phenomena such as different-step displacement and falling are generated between rings. Because the rotary kiln is a key device in a hazardous waste treatment process, the problems of the service life and the falling off of the refractory material of the rotary kiln are main problems directly influencing the reliable and safe operation of a system.
The existing rotary kiln refractory material construction basically has two modes of building refractory bricks and supporting formwork castable, the construction is complex, the construction period is long, and the phenomena of refractory brick extraction and castable cracking are easy to occur.
Disclosure of Invention
The invention aims to provide a method for building a rotary kiln for hazardous waste treatment, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a furnace building method of a rotary kiln for hazardous waste treatment adopts a mode of alternately constructing a composite prefabricated member and a pouring material to build the furnace, the rotary kiln comprises a rotary kiln steel shell, a kiln head, a kiln tail and a kiln, the rotary kiln steel shell is built by three layers from outside to inside, and the rotary kiln steel shell comprises a 10 mm refractory blanket, a 70 mm heat preservation layer and a 230 mm working layer;
the concrete construction steps are as follows:
firstly, a composite prefabricated part is manufactured by compounding an insulating layer and a working layer, an anchoring part is arranged in the composite prefabricated part, and a part welded with the inner wall of the rotary kiln is reserved in the anchoring part;
welding a plurality of rows of composite prefabricated parts along the length direction of the rotary kiln, reserving a castable gap between the rows, and constructing the castable after the construction of the composite prefabricated parts is finished;
building each row of composite prefabricated parts from the kiln head to the kiln tail, welding the extending parts of the anchoring parts of the composite prefabricated parts on the inner wall of the steel shell, wherein refractory mortar with the thickness of about 1-2 mm is arranged between the composite prefabricated parts, and the composite prefabricated parts are not built at the position of about 400 mm plus 500 mm of the kiln tail;
reserving a gap of about one composite prefabricated part between every two rows of composite prefabricated parts, and pouring a pouring material between the two rows of prefabricated parts after the construction of the composite prefabricated parts is finished;
welding an anchoring part before the castable is constructed, then laying a layer of refractory blanket, firstly spraying insulating layer castable on the refractory blanket, and then spraying working layer castable;
step six, kiln tail: firstly welding an anchoring part, then laying a layer of refractory blanket, pouring a supporting template by using a working layer pouring material, and synchronously constructing with a kiln body pouring material;
and seventhly, forming the refractory materials in the whole rotary kiln into a whole after construction is completed, reducing longitudinal and transverse movement of the refractory materials, and reducing multidirectional stress of the heat insulation layer.
Preferably, the formula of the working layer is as follows: the aggregate adopts plate-shaped corundum; the substrate part adopts chrome corundum, zirconium mullite and boron nitride; the bonding agent adopts composite micro powder.
Preferably, the formula of the heat-insulating layer is that light mullite aggregate and alumina hollow spheres are adopted as aggregate; the matrix part adopts andalusite and the binding agent adopts composite micro powder.
Preferably, the composite micro powder is silicon micro powder and aluminum oxide micro powder.
Preferably, the refractory blanket is a zirconium-aluminum type refractory fiber blanket which is not adhered to the steel shell, is easy to clean and has low thermal conductivity.
Compared with the prior art, the invention has the following beneficial effects:
in the running process of the hazardous waste rotary kiln, the main form of the damage of the refractory material is that the thickness of the working layer is gradually reduced until the working layer is completely lost; for the situation, the main reason is that the waste material liquid and the surface layer of the refractory working layer generate chemical reaction at high temperature to generate low-melting substances; secondly, the waste liquid permeates into the surface layer of the working layer, and the surface layer of the working layer generates larger volume change when the temperature changes, so that the refractory material is locally peeled off, therefore, the corrosion resistance of the material is mainly considered while the factors such as thermal shock stability, wear resistance, strength and the like are fully considered in the aspect of material selection, and the apparent porosity of the whole refractory material is reduced in the aspect of particle grading design; the working layer of the invention is thus: the aggregate adopts plate-shaped corundum; the matrix part adopts chrome corundum, zirconium mullite and boron nitride, and the binding agent adopts composite micro powder and superfine powder; insulating layer: the aggregate is light mullite aggregate and alumina hollow spheres; the matrix part adopts andalusite and the like and is combined by composite micro powder.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example 1:
the method for building the rotary kiln for hazardous waste treatment in the embodiment adopts a mode of alternately constructing a composite prefabricated member and a pouring material to build the rotary kiln, wherein the rotary kiln comprises a rotary kiln steel shell, a kiln head, a kiln tail and a kiln, the rotary kiln steel shell is built by three layers from outside to inside, and the rotary kiln steel shell comprises a 10 mm refractory blanket, a 70 mm heat-insulating layer and a 230 mm working layer;
the concrete construction steps are as follows:
firstly, a composite prefabricated part is manufactured by compounding an insulating layer and a working layer, an anchoring part is arranged in the composite prefabricated part, and a part welded with the inner wall of the rotary kiln is reserved in the anchoring part;
welding a plurality of rows of composite prefabricated parts along the length direction of the rotary kiln, reserving a castable gap between the rows, and constructing the castable after the construction of the composite prefabricated parts is finished;
building each row of composite prefabricated parts from the kiln head to the kiln tail, welding the extending parts of the anchoring parts of the composite prefabricated parts on the inner wall of the steel shell, wherein refractory mortar with the thickness of about 1 mm is arranged between the composite prefabricated parts, and the composite prefabricated parts are not built at the position with the thickness of about 400 mm of the kiln tail;
reserving a gap of about one composite prefabricated part between every two rows of composite prefabricated parts, and pouring a pouring material between the two rows of prefabricated parts after the construction of the composite prefabricated parts is finished;
welding an anchoring part before the castable is constructed, then laying a layer of refractory blanket, firstly spraying insulating layer castable on the refractory blanket, and then spraying working layer castable;
step six, kiln tail: firstly welding an anchoring part, then laying a layer of refractory blanket, pouring a supporting template by using a working layer pouring material, and synchronously constructing with a kiln body pouring material;
and seventhly, forming the refractory materials in the whole rotary kiln into a whole after construction is completed, reducing longitudinal and transverse movement of the refractory materials, and reducing multidirectional stress of the heat insulation layer.
The formula of the working layer in this embodiment is: the aggregate adopts plate-shaped corundum; the substrate part adopts chrome corundum, zirconium mullite and boron nitride; the bonding agent adopts composite micro powder.
The formula of the insulating layer of the embodiment is that light mullite aggregate and alumina hollow spheres are adopted as aggregates; the matrix part adopts andalusite and the binding agent adopts composite micro powder.
The composite fine powder of the present example is a silica fine powder and an alumina fine powder.
The refractory blanket of this embodiment is a zirconium-aluminum type refractory fiber blanket selected to be free from adhesion to the steel shell, easy to clean, and low in thermal conductivity.
Example 2:
the method for building the rotary kiln for hazardous waste treatment in the embodiment adopts a mode of alternately constructing a composite prefabricated member and a pouring material to build the rotary kiln, wherein the rotary kiln comprises a rotary kiln steel shell, a kiln head, a kiln tail and a kiln, the rotary kiln steel shell is built by three layers from outside to inside, and the rotary kiln steel shell comprises a 10 mm refractory blanket, a 70 mm heat-insulating layer and a 230 mm working layer;
the concrete construction steps are as follows:
firstly, a composite prefabricated part is manufactured by compounding an insulating layer and a working layer, an anchoring part is arranged in the composite prefabricated part, and a part welded with the inner wall of the rotary kiln is reserved in the anchoring part;
welding a plurality of rows of composite prefabricated parts along the length direction of the rotary kiln, reserving a castable gap between the rows, and constructing the castable after the construction of the composite prefabricated parts is finished;
building each row of composite prefabricated parts from the kiln head to the kiln tail, welding the extending parts of the anchoring parts of the composite prefabricated parts on the inner wall of the steel shell, wherein refractory mortar with the thickness of about 2 mm is arranged between the composite prefabricated parts, and the composite prefabricated parts are not built at the position with the thickness of about 500 mm of the kiln tail;
reserving a gap of about one composite prefabricated part between every two rows of composite prefabricated parts, and pouring a pouring material between the two rows of prefabricated parts after the construction of the composite prefabricated parts is finished;
welding an anchoring part before the castable is constructed, then laying a layer of refractory blanket, firstly spraying insulating layer castable on the refractory blanket, and then spraying working layer castable;
step six, kiln tail: firstly welding an anchoring part, then laying a layer of refractory blanket, pouring a supporting template by using a working layer pouring material, and synchronously constructing with a kiln body pouring material;
and seventhly, forming the refractory materials in the whole rotary kiln into a whole after construction is completed, reducing longitudinal and transverse movement of the refractory materials, and reducing multidirectional stress of the heat insulation layer.
The formula of the working layer in this embodiment is: the aggregate adopts plate-shaped corundum; the substrate part adopts chrome corundum, zirconium mullite and boron nitride; the bonding agent adopts composite micro powder.
The formula of the insulating layer of the embodiment is that light mullite aggregate and alumina hollow spheres are adopted as aggregates; the matrix part adopts andalusite and the binding agent adopts composite micro powder.
The composite fine powder of the present example is a silica fine powder and an alumina fine powder.
The refractory blanket of this embodiment is a zirconium-aluminum type refractory fiber blanket selected to be free from adhesion to the steel shell, easy to clean, and low in thermal conductivity.
And (3) performance testing:
the physical and chemical index performances of the working layer, the heat-insulating layer and the heat-insulating blanket material adopted by the invention are as follows:
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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A furnace building method of a rotary kiln for hazardous waste treatment is characterized in that the furnace building method of the rotary kiln adopts a mode of alternately constructing a composite prefabricated member and a pouring material, the rotary kiln comprises a rotary kiln steel shell, a kiln head, a kiln tail and a kiln, the rotary kiln steel shell is built in three layers from outside to inside, and the rotary kiln steel shell comprises a 10 mm refractory blanket, a 70 mm heat insulation layer and a 230 mm working layer;
the concrete construction steps are as follows:
firstly, a composite prefabricated part is manufactured by compounding an insulating layer and a working layer, an anchoring part is arranged in the composite prefabricated part, and a part welded with the inner wall of the rotary kiln is reserved in the anchoring part;
welding a plurality of rows of composite prefabricated parts along the length direction of the rotary kiln, reserving a castable gap between the rows, and constructing the castable after the construction of the composite prefabricated parts is finished;
building each row of composite prefabricated parts from the kiln head to the kiln tail, welding the extending parts of the anchoring parts of the composite prefabricated parts on the inner wall of the steel shell, wherein refractory mortar with the thickness of about 1-2 mm is arranged between the composite prefabricated parts, and the composite prefabricated parts are not built at the position of about 400 mm plus 500 mm of the kiln tail;
reserving a gap of about one composite prefabricated part between every two rows of composite prefabricated parts, and pouring a pouring material between the two rows of prefabricated parts after the construction of the composite prefabricated parts is finished;
welding an anchoring part before the castable is constructed, then laying a layer of refractory blanket, firstly spraying insulating layer castable on the refractory blanket, and then spraying working layer castable;
step six, kiln tail: firstly welding an anchoring part, then laying a layer of refractory blanket, pouring a supporting template by using a working layer pouring material, and synchronously constructing with a kiln body pouring material;
and seventhly, forming the refractory materials in the whole rotary kiln into a whole after construction is completed, reducing longitudinal and transverse movement of the refractory materials, and reducing multidirectional stress of the heat insulation layer.
2. The method for building the rotary kiln for dangerous waste treatment according to claim 1, wherein the formula of the working layer is as follows: the aggregate adopts plate-shaped corundum; the substrate part adopts chrome corundum, zirconium mullite and boron nitride; the bonding agent adopts composite micro powder.
3. The method for building the rotary kiln for hazardous waste treatment according to claim 1, wherein the heat insulation layer is made of light mullite aggregate and alumina hollow spheres as aggregates; the matrix part adopts andalusite and the binding agent adopts composite micro powder.
4. The method for building the rotary kiln for treating the hazardous waste according to claim 2 or 3, wherein the composite micro powder is silica micro powder and alumina micro powder.
5. The method for building the rotary kiln for treating the hazardous waste according to claim 1, wherein the refractory blanket is a zirconium-aluminum type refractory fiber blanket which is not adhered to a steel shell, is easy to clean and has a low thermal conductivity coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911401815.XA CN111043606A (en) | 2019-12-30 | 2019-12-30 | Furnace building method for hazardous waste treatment rotary kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911401815.XA CN111043606A (en) | 2019-12-30 | 2019-12-30 | Furnace building method for hazardous waste treatment rotary kiln |
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| CN111043606A true CN111043606A (en) | 2020-04-21 |
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| CN201911401815.XA Pending CN111043606A (en) | 2019-12-30 | 2019-12-30 | Furnace building method for hazardous waste treatment rotary kiln |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550810A (en) * | 2020-04-24 | 2020-08-18 | 中国电建集团河南工程有限公司 | Construction method for building lining of household garbage incinerator |
| CN111750663A (en) * | 2020-07-20 | 2020-10-09 | 贵阳明通炉料有限公司 | Large horizontal tubular kiln |
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| CN101445379A (en) * | 2008-12-19 | 2009-06-03 | 周建国 | Dedicated pouring material for cement kiln outlet and jetting coal pipe and preparation method thereof |
| CN101799238A (en) * | 2010-03-24 | 2010-08-11 | 淄博鲁铭高温材料科技有限公司 | Rotary kiln |
| CN204648950U (en) * | 2015-03-27 | 2015-09-16 | 天津振普筑炉衬里工程有限公司 | A kind of sour gas burning furnace Fast Installation furnace lining structure |
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| CN205740773U (en) * | 2016-06-21 | 2016-11-30 | 刘伟 | Limestone erects type inner lining of kiln refractory brick |
| CN106595314A (en) * | 2016-12-15 | 2017-04-26 | 攀枝花钢城集团有限公司 | Rotary kiln liner structure and laying method |
| CN109883202A (en) * | 2019-03-27 | 2019-06-14 | 福建德科达环保有限责任公司 | A kind of production method of environment protection type heat insulating kiln |
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