CN111551022A - Rotary kiln furnace lining brick and rotary kiln furnace lining - Google Patents
Rotary kiln furnace lining brick and rotary kiln furnace lining Download PDFInfo
- Publication number
- CN111551022A CN111551022A CN202010496546.6A CN202010496546A CN111551022A CN 111551022 A CN111551022 A CN 111551022A CN 202010496546 A CN202010496546 A CN 202010496546A CN 111551022 A CN111551022 A CN 111551022A
- Authority
- CN
- China
- Prior art keywords
- rotary kiln
- groove
- brick
- lining
- lining brick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011449 brick Substances 0.000 title claims abstract description 62
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000004321 preservation Methods 0.000 claims abstract description 10
- 239000004927 clay Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Images
Classifications
-
- 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
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
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 relates to a rotary kiln lining brick and a rotary kiln lining, wherein the body of the rotary kiln lining brick is of a hexahedral structure, the top surface of the rotary kiln lining brick is a working surface, the bottom of the rotary kiln lining brick is symmetrically provided with through-long grooves along the central line, supporting legs are naturally formed on two sides of each groove, and each groove is a U-shaped groove which narrows inwards; two side surfaces parallel to the symmetrical center line of the groove are wedge-shaped surfaces with a small upper part and a big lower part. The rotary kiln furnace lining comprises the rotary kiln furnace lining brick and a light heat-preservation heat-insulation refractory castable. The bench-shaped refractory bricks are used as the rotary kiln lining bricks, so that the light heat-preservation heat-insulation refractory castable is filled into the grooves of the rotary kiln lining bricks while ensuring sufficient compressive strength, wear resistance and soft load points, the surface temperature of the kiln shell can be effectively reduced, the heat dissipation loss is reduced, and energy is saved; meanwhile, the weight of the rotary kiln lining is reduced, the driving load of the rotary kiln is reduced, and the power consumption is reduced.
Description
Technical Field
The invention relates to the technical field of rotary kilns, in particular to a rotary kiln lining brick and a rotary kiln lining.
Background
The kiln chamber of the rotary kiln is in a high-temperature environment for a long time, and refractory bricks forming the kiln body lining are subjected to radiation of high-temperature flame, scouring and corrosion of materials and dust-containing high-temperature flue gas for a long time. Because the rotary kiln is a kiln which horizontally rotates, the lining of the kiln body has certain distortion deformation along the length direction of the rotary kiln in the process of rotating along with the kiln shell, and therefore the refractory bricks of the lining of the kiln body are required to have higher compressive strength, otherwise the refractory bricks are easy to break and fall off after being distorted and stressed, and the kiln is stopped for maintenance.
In order to reduce the transmission load and the rigidity of the kiln cylinder, compared with a shaft kiln, the lining of the rotary kiln is very thin, the heat insulation performance is poor, the temperature of the kiln shell of the rotary kiln is high, and the heat dissipation loss is large. Although some heat recovery measures can be adopted, the effect is not ideal, and the technical problem which troubles the production of the rotary kiln is always that how to reduce the temperature of the kiln shell and reduce the heat dissipation loss.
Disclosure of Invention
The invention provides a rotary kiln furnace lining brick and a rotary kiln furnace lining, wherein a bench-shaped refractory brick is used as the rotary kiln furnace lining brick, so that a light heat-preservation heat-insulation refractory castable material is filled into a groove of the rotary kiln furnace lining brick while enough compressive strength, enough wear resistance and enough soft points are ensured, the surface temperature of a kiln shell can be effectively reduced, the heat dissipation loss is reduced, and energy is saved; meanwhile, the weight of the rotary kiln lining is reduced, the driving load of the rotary kiln is reduced, and the power consumption is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a rotary kiln furnace lining brick is characterized in that a body of the rotary kiln furnace lining brick is of a hexahedral structure, the top surface of the rotary kiln furnace lining brick is a working surface, the bottom of the rotary kiln furnace lining brick is symmetrically provided with through-long grooves along the central line, supporting legs are naturally formed on two sides of each groove, and each groove is a U-shaped groove which narrows inwards; two side surfaces parallel to the symmetrical center line of the groove are wedge-shaped surfaces with a small upper part and a big lower part.
And the depth of the groove is equal to the height x of the rotary kiln lining brick (0.3-0.7).
And the groove bottom and the groove waist of the groove are in arc transition.
The top surface of the rotary kiln furnace lining brick is parallel to the bottom surface, and the 2 wedge-shaped surfaces are parallel to each other.
A rotary kiln lining comprises the rotary kiln lining brick and a light heat-preservation heat-insulation refractory castable; the rotary kiln lining bricks are closely arranged along the axial direction and the circumferential direction of the rotary kiln chamber; the working surface of the rotary kiln lining brick faces the inner side of the rotary kiln chamber, and the wedge-shaped surface is vertical to the central line of the rotary kiln chamber; the supporting legs of the rotary kiln lining bricks are fixedly bonded with the rotary kiln shell through fire clay; the groove of the rotary kiln furnace lining brick is filled with light heat-preservation heat-insulation refractory castable.
Compared with the prior art, the invention has the beneficial effects that:
1) the bench-shaped refractory bricks are used as the lining bricks of the rotary kiln, and the light heat-insulating refractory castable with better heat-insulating property is filled between the kiln shell and the lining bricks of the rotary kiln, so that the surface temperature of the kiln shell can be effectively reduced, the heat dissipation loss is reduced, and the energy is greatly saved.
2) Compared with the traditional rotary kiln lining brick, the bench-shaped rotary kiln lining brick is provided with the grooves, and the light heat-preservation heat-insulation refractory castable is filled in the grooves, so that the weight of the rotary kiln lining is reduced, the driving load of the rotary kiln is reduced, and the power consumption is reduced.
Drawings
Fig. 1 is a schematic perspective view of a rotary kiln lining brick according to the present invention.
FIG. 2 is a front view of a rotary kiln lining according to the present invention.
Fig. 3 is a view a-a in fig. 2.
In the figure: 1. rotary kiln lining brick 11, working face 12, groove 13, supporting leg 14, wedge face 2, light heat-preservation heat-insulation refractory castable 3 and kiln shell
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1, the rotary kiln lining brick 1 of the present invention has a hexahedral structure, a top surface thereof is a working surface 11, a bottom thereof is symmetrically provided with a through long groove 12 along a center line, support legs 13 are naturally formed at both sides of the groove 12, and the groove 12 is a U-shaped groove narrowing inward; two sides parallel to the symmetrical center line of the groove 12 are wedge-shaped surfaces 14 with a small upper part and a big lower part.
The depth of the groove 12 is equal to the height x (0.3-0.7) of the rotary kiln lining brick 1.
And the groove bottom and the groove waist of the groove 12 are in arc transition.
The top surface of the rotary kiln lining brick 1 is parallel to the bottom surface, and 2 wedge-shaped surfaces 14 are parallel to each other.
As shown in fig. 2 and fig. 3, the rotary kiln lining of the present invention comprises rotary kiln lining bricks 1 and light heat-insulating refractory castable 2; the rotary kiln lining bricks 1 are closely arranged along the axial direction and the circumferential direction of the rotary kiln chamber; the working surface 11 of the rotary kiln lining brick 1 faces the inner side of a rotary kiln chamber, and the wedge-shaped surface 13 is vertical to the central line of the rotary kiln chamber; the supporting legs 13 of the rotary kiln lining brick 1 are fixedly bonded with the rotary kiln shell 3 through fire clay; the groove 12 of the rotary kiln furnace lining brick 1 is filled with a light heat-preservation heat-insulation refractory castable 2.
The rotary kiln lining brick 1 is in a stool shape as a whole and comprises a working surface 11, supporting legs 13, a groove 12 and a wedge-shaped surface 14. When the lining of the rotary kiln is built, firstly, a plurality of rings of lining bricks of the rotary kiln, which are arranged at the bottom of the rotary kiln and are symmetrical in the range of 60 degrees along the two sides of the central line of the rotary kiln, are built from the middle part to the two sides along the axial direction of the rotary kiln. During masonry, the wedge-shaped surface 14 is perpendicular to the axis of the rotary kiln, the bottoms of the supporting legs 13 are fixedly bonded with the inner wall of the kiln shell 3 by using fire clay, the groove 12 of the masonry rotary kiln lining brick 1 is filled with light heat-preservation heat-insulation refractory castable, and the masonry after being built is supported and protected by using a supporting and fixing device. Then horizontally rotating the rotary kiln by an angle of 60 degrees, then building the rotary kiln lining bricks 1 within the range of adjacent angles of 60 degrees, and also filling the grooves 12 with light heat-insulating refractory castable 2. After the masonry of the partial rotary kiln lining is finished, a supporting and fixing device is used for supporting and protecting, and then the masonry of the next section is carried out; the operation is circulated until the whole lining of the rotary kiln is built.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A rotary kiln furnace lining brick is characterized in that a body of the rotary kiln furnace lining brick is of a hexahedral structure, the top surface of the rotary kiln furnace lining brick is a working surface, the bottom of the rotary kiln furnace lining brick is symmetrically provided with through-long grooves along the central line, supporting legs are naturally formed on two sides of each groove, and each groove is a U-shaped groove which narrows inwards; two side surfaces parallel to the symmetrical center line of the groove are wedge-shaped surfaces with a small upper part and a big lower part.
2. The rotary kiln furnace lining brick as claimed in claim 1, wherein the depth of the groove is equal to the rotary kiln furnace lining brick height x (0.3-0.7).
3. The rotary kiln liner brick as claimed in claim 1, wherein the groove bottom and the groove waist of the groove are in arc transition.
4. The rotary kiln liner brick as claimed in claim 1, wherein the top surface of the rotary kiln liner brick is parallel to the bottom surface, and the 2 wedge surfaces are parallel to each other.
5. A rotary kiln lining, characterized by comprising the rotary kiln lining brick as claimed in claim 1 and a lightweight heat-insulating refractory castable material; the rotary kiln lining bricks are closely arranged along the axial direction and the circumferential direction of the rotary kiln chamber; the working surface of the rotary kiln lining brick faces the inner side of the rotary kiln chamber, and the wedge-shaped surface is vertical to the axis of the rotary kiln; the supporting legs of the rotary kiln lining bricks are fixedly bonded with the inner wall of the rotary kiln shell through fire clay; the groove of the rotary kiln furnace lining brick is filled with light heat-preservation heat-insulation refractory castable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010496546.6A CN111551022A (en) | 2020-06-03 | 2020-06-03 | Rotary kiln furnace lining brick and rotary kiln furnace lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010496546.6A CN111551022A (en) | 2020-06-03 | 2020-06-03 | Rotary kiln furnace lining brick and rotary kiln furnace lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111551022A true CN111551022A (en) | 2020-08-18 |
Family
ID=72007003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010496546.6A Pending CN111551022A (en) | 2020-06-03 | 2020-06-03 | Rotary kiln furnace lining brick and rotary kiln furnace lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111551022A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202329157U (en) * | 2011-11-16 | 2012-07-11 | 范圣良 | Low-heat-conduction fire brick for rotary kiln |
| CN203964635U (en) * | 2014-07-21 | 2014-11-26 | 山东鲁铭高温材料科技有限公司 | The inner liner of rotary kiln that a kind of concrete prefabricated brick makes |
| CN104390461A (en) * | 2014-07-21 | 2015-03-04 | 山东鲁铭高温材料科技有限公司 | Energy-saving cement rotary kiln lining and masonry process thereof |
| CN204301481U (en) * | 2014-12-01 | 2015-04-29 | 偏关县晋电化工有限责任公司 | A kind of inner liner of rotary kiln brick |
| CN206337154U (en) * | 2016-12-23 | 2017-07-18 | 洛阳大洋高性能材料有限公司 | A kind of glass fiber kiln breastwork composite brick |
| CN212512423U (en) * | 2020-06-03 | 2021-02-09 | 中冶焦耐(大连)工程技术有限公司 | Rotary kiln furnace lining brick and rotary kiln furnace lining |
-
2020
- 2020-06-03 CN CN202010496546.6A patent/CN111551022A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202329157U (en) * | 2011-11-16 | 2012-07-11 | 范圣良 | Low-heat-conduction fire brick for rotary kiln |
| CN203964635U (en) * | 2014-07-21 | 2014-11-26 | 山东鲁铭高温材料科技有限公司 | The inner liner of rotary kiln that a kind of concrete prefabricated brick makes |
| CN104390461A (en) * | 2014-07-21 | 2015-03-04 | 山东鲁铭高温材料科技有限公司 | Energy-saving cement rotary kiln lining and masonry process thereof |
| CN204301481U (en) * | 2014-12-01 | 2015-04-29 | 偏关县晋电化工有限责任公司 | A kind of inner liner of rotary kiln brick |
| CN206337154U (en) * | 2016-12-23 | 2017-07-18 | 洛阳大洋高性能材料有限公司 | A kind of glass fiber kiln breastwork composite brick |
| CN212512423U (en) * | 2020-06-03 | 2021-02-09 | 中冶焦耐(大连)工程技术有限公司 | Rotary kiln furnace lining brick and rotary kiln furnace lining |
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