CN203068950U - Rotary kiln - Google Patents
Rotary kiln Download PDFInfo
- Publication number
- CN203068950U CN203068950U CN 201320026811 CN201320026811U CN203068950U CN 203068950 U CN203068950 U CN 203068950U CN 201320026811 CN201320026811 CN 201320026811 CN 201320026811 U CN201320026811 U CN 201320026811U CN 203068950 U CN203068950 U CN 203068950U
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- rotary kiln
- kiln body
- kiln
- rotary
- brick
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
A rotary kiln comprises a kiln head and an inclined rotary kiln body, which are connected together, wherein a transmission device is arranged outside the rotary kiln body and used for driving the kiln body to perform counterclockwise rotation; the rear end of the rotary kiln body is connected with a kiln tail; a variable-diameter section is arranged at the position, close to the kiln tail, of the rotary kiln body; a raising material plate is arranged on the inner wall of the variable-diameter section; insulating bricks are arranged on the inner sides of the rotary kiln body; wear-resistant ceramics are arranged on the inner sides of the insulating bricks; and a plurality of bearing frames are arranged on the rotary kiln body. The rotary kiln is high in compressive strength and low in maintenance frequency; the kiln body is not easy to oxidize; and the consumed energy each time of termination of the kiln and kilning is saved by 35-36 percent through reducing conducted heat, the cost is saved, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of rotary kiln.
Background technology
Rotary kiln refers to rotate calcining kiln (being commonly called as rotary kiln), belongs to the building equipment class.Rotary kiln can be divided into cement kiln, chemical metallurgy kiln and limekiln by the material handling difference.In aluminium oxide and manufacture of cement, need produce lime with rotary kiln, lime stone rotary kiln that can be present all is the outer preheater of kiln that adopts to the preheating of lime stone, this structure exists some following shortcoming: on the one hand, the cost height of the preheater investment in limekiln, particularly hydraulic system and hydraulic push rod are somewhat expensive, need frequent maintenance again; On the other hand, because variety of issue appears in preheater complex structure easily, such as: hydraulic push rod often breaks down, and the refractory brick of preheater inside often comes off etc.
At present, the inwall of rotary kiln mainly contains two kinds of mode of construction: one is built by laying bricks or stones with the setting high-alumina brick of suppressing, burning till; Its dual-purpose amorphous refractory is carried out integrated poured.From laterite, is extracting in the process of metal with the rotary kiln eaf process, because rotary kiln need be handled moisture every day up to 450 tons of 36%-37% laterites under the high temperature of spending 1,000, making the rotary kiln serious wear more, and then cause the rotary kiln explosion.At this moment, reducing atmosphere is very dense in the rotary kiln, chemical erosion also makes the inner liner of rotary kiln fret wear, and then cause the barrel temperature of rotary kiln to raise, intensity reduces, and barrel distortion is although constantly be cooled with circulating water in process of production, but rotary kiln continuously operation about 110 days must shutdown maintenance or is all knocked out cast again, serious waste of resources.
The utility model content
Technical problem to be solved in the utility model provides a kind of rotary kiln, the compression strength height of this rotary kiln, and the kiln body is difficult for oxidation, frequency of maintenance is low, by the heat that reduces conduction heat, consumes when stopping kiln, baking kiln, energy savings 35%-36% at every turn, save cost, improved production efficiency.
In order to solve existing technical problem, the technical solution adopted in the utility model is: a kind of rotary kiln, the rotary kiln body that comprises kiln hood and inclination, kiln hood is connected with the kiln body, it is characterized in that, external being provided with of described rotary kiln drives the transmission device that the kiln body is rotated counterclockwise, the rear end of rotary kiln body connects the kiln tail, the rotary kiln body is provided with one section reducer near kiln tail place, lifting blade is arranged on the inwall of reducer, inboard at described rotary kiln body is provided with insulating brick, is provided with wear-resistant ceramic in described insulating brick inboard.
Above-mentioned a kind of rotary kiln, described rotary kiln body is provided with a plurality of bearing supports.
Above-mentioned a kind of rotary kiln, described bearing support are 2-8.
Above-mentioned a kind of rotary kiln, the angle of inclination of described rotary kiln body are between 5-30 °.
Above-mentioned a kind of rotary kiln is respectively equipped with groove and the projection adaptive with described groove on the contact-making surface of adjacent two blocks of described insulating bricks.
Above-mentioned a kind of rotary kiln is provided with corundum brick between described insulating brick and the described wear-resistant ceramic.
Above-mentioned a kind of rotary kiln, described corundum brick is being provided with dovetail groove with described wear-resistant ceramic contact-making surface, and described wear-resistant ceramic is being provided with the swallow-tail form projection adaptive with described corundum brick dovetail groove with described corundum brick contact-making surface.
Above-mentioned a kind of rotary kiln, the surface of described insulating brick, corundum brick, wear-resistant ceramic is provided with fire-resistant mud layer.
The beneficial effects of the utility model are: the compression strength height of this rotary kiln, and the kiln body is difficult for oxidation, and frequency of maintenance is low, and by the heat that reduces conduction heat, consumes when stopping kiln, baking kiln at every turn, energy savings 35%-36% saves cost, has improved production efficiency.
Description of drawings
Fig. 1 is front view figure of the present utility model
Fig. 2 is side view of the present utility model
The partial enlarged drawing that Fig. 3 changes for the utility model corundum
Fig. 4 is the partial enlarged drawing of the utility model wear-resistant ceramic
The specific embodiment
Further understand and be familiar with for making architectural feature of the present utility model and the effect reached had, cooperate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows:
As shown in Figure 1, a kind of rotary kiln, comprise kiln hood 1 and the rotary kiln body 2 that tilts, kiln hood 1 is connected with kiln body 2, and rotary kiln body 2 outer being provided with drive the transmission device 3 that the kiln body is rotated counterclockwise, and the rear end of rotary kiln body 2 connects kiln tail 8, rotary kiln body 2 is provided with one section reducer 6 near kiln tail 8 places, lifting blade 4 is arranged on the inwall of reducer 6, is provided with insulating brick 9 in the inboard of rotary kiln body 2, is provided with wear-resistant ceramic 11 in insulating brick 9 inboards.
Preferably, rotary kiln body 2 is provided with a plurality of bearing supports 7, and bearing support 7 is 2-8, can be rotated counterclockwise to guarantee rotary kiln body 2, and the quantity of bearing support 7 can be decided according to 2 length of rotary kiln body; The angle of inclination of rotary kiln body 2 is between 5-30 °, is equipped with sealing ring at kiln hood 1 and kiln tail 8, to prevent entering of cold wind.
Lime stone is sent the back here and is entered rotary kiln body 2 from kiln tail 8, and lime stone is normal temperature, because kiln tail 8 is shorter to the distance of reducer 6, when material 5 was sent to reducer 6, the lime stone temperature failed to reach the required temperature of calcining, must carry out preheating.At reducer 6 places, material 5 is taken up along with the rotation of reducer 6, material 5 is taken to the top of reducer 6 simultaneously by lifting blade 4, like this material 5 will constantly be raised, fall repeatedly carry out heat exchange with hot gas, after reaching required temperature, the material 5 that flows out reducer 6 continues to move, continue preheating forward, when material 5 runs to burning zone, material temperature has also just reached calcines required temperature, and the material 5 that calcining is over is discharged from kiln hood 1 at last.
As shown in Figure 2, be respectively equipped with groove 91 and the projection 92 adaptive with groove on the contact-making surface of adjacent two blocks of insulating bricks 9.
Be provided with corundum between insulating brick 9 and the wear-resistant ceramic 11 and change 10, it is that the refractory material of principal crystalline phase is made with the corundum that corundum changes 10, has the good chemical stability of higher crushing strength under high temperature, acidity or basic slag, metal and glass metal are all had stronger resistivity, and corundum is set between insulating brick 9 and wear-resistant ceramic 11 changeed for 10 life-spans that can improve rotary kiln.
As shown in Figure 3, Figure 4, corundum changes 10 and is being provided with dovetail groove 101 with the wear-resistant ceramic contact-making surface, wear-resistant ceramic 11 is being provided with the swallow-tail form projection 111 adaptive with corundum brick dovetail groove 101 with corundum brick 10 contact-making surfaces, to improve the steadiness that is connected between wear-resistant ceramic 11 and the corundum commentaries on classics 10.
Above-mentioned a kind of rotary kiln, the surface of described insulating brick 9, corundum brick 10, wear-resistant ceramic 11 is provided with fire-resistant mud layer.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and the specification is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in the claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (7)
1. rotary kiln, the rotary kiln body that comprises kiln hood and inclination, kiln hood is connected with the kiln body, it is characterized in that, external being provided with of described rotary kiln drives the transmission device that the kiln body is rotated counterclockwise, the rear end of rotary kiln body connects the kiln tail, the rotary kiln body is provided with one section reducer near kiln tail place, and lifting blade is arranged on the inwall of reducer, is provided with insulating brick in the inboard of described rotary kiln body, be provided with in described insulating brick inboard, described rotary kiln body is provided with a plurality of bearing supports.
2. a kind of rotary kiln according to claim 1 is characterized in that, described bearing support is 2-8.
3. a kind of rotary kiln according to claim 1 is characterized in that, the angle of inclination of described rotary kiln body is between 5-30 °.
4. a kind of rotary kiln according to claim 1 is characterized in that, is respectively equipped with groove and the projection adaptive with described groove on the contact-making surface of adjacent two blocks of described insulating bricks.
5. a kind of rotary kiln according to claim 1 is characterized in that, is provided with corundum brick between described insulating brick and the described wear-resistant ceramic.
6. a kind of rotary kiln according to claim 5, it is characterized in that, described corundum brick is being provided with dovetail groove with described wear-resistant ceramic contact-making surface, and described wear-resistant ceramic is being provided with the swallow-tail form projection adaptive with described corundum brick dovetail groove with described corundum brick contact-making surface.
7. according to claim 5 or 6 described a kind of rotary kilns, it is characterized in that the surface of described insulating brick, corundum brick, wear-resistant ceramic is provided with fire-resistant mud layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320026811 CN203068950U (en) | 2013-01-17 | 2013-01-17 | Rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320026811 CN203068950U (en) | 2013-01-17 | 2013-01-17 | Rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068950U true CN203068950U (en) | 2013-07-17 |
Family
ID=48767729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320026811 Expired - Fee Related CN203068950U (en) | 2013-01-17 | 2013-01-17 | Rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068950U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731836A (en) * | 2016-03-30 | 2016-07-06 | 南宁砼材科技有限责任公司 | Lime rotary kiln with preheating function |
| WO2017107532A1 (en) * | 2015-12-21 | 2017-06-29 | 格林美股份有限公司 | Internal heating ceramic liner rotary furnace |
| CN107883761A (en) * | 2017-12-06 | 2018-04-06 | 江苏凤谷节能科技有限公司 | Rotary kiln inner-tube structure |
-
2013
- 2013-01-17 CN CN 201320026811 patent/CN203068950U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107532A1 (en) * | 2015-12-21 | 2017-06-29 | 格林美股份有限公司 | Internal heating ceramic liner rotary furnace |
| CN105731836A (en) * | 2016-03-30 | 2016-07-06 | 南宁砼材科技有限责任公司 | Lime rotary kiln with preheating function |
| CN107883761A (en) * | 2017-12-06 | 2018-04-06 | 江苏凤谷节能科技有限公司 | Rotary kiln inner-tube structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20190117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |