CN209605572U - A kind of reduction rotary kiln - Google Patents
A kind of reduction rotary kiln Download PDFInfo
- Publication number
- CN209605572U CN209605572U CN201920143983.2U CN201920143983U CN209605572U CN 209605572 U CN209605572 U CN 209605572U CN 201920143983 U CN201920143983 U CN 201920143983U CN 209605572 U CN209605572 U CN 209605572U
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- China
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- kiln
- rotary kiln
- kiln body
- charger
- blast pipe
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model discloses a kind of reduction rotary kilns, including kiln hood, kiln body, kiln tail, cleaning plant, gear wheel, wheel belt, charger with exhaust outlet, kiln head cover, the kiln hood and the kiln tail are located at kiln body two sides, the kiln tail is equipped with the charger, the kiln hood is equipped with kiln head cover, the kiln tail mounting height is higher than kiln hood, the gear wheel and the wheel belt are set in the kiln body, the gear wheel is engaged with pinion gear, the pinion gear is connected by retarder with motor, the wheel belt is fitted close with the support roller for being fixed on ground, the cleaning plant is coaxially installed on inside the kiln body, a kind of reduction rotary kiln provided by the utility model, material is prevented to occur to be bonded phenomenon on rotary kiln wall, it ensure that the operating inner diameter of rotary kiln, improve working efficiency and yield, save the cost, protect environment.
Description
Technical field
The utility model relates to metal smelt technical fields, and in particular to a kind of reduction rotary kiln.
Background technique
Rotary kiln is a kind of large-scale production dress being commonly used in its raw material process in industries such as metallurgy, buildings
It is standby, be frequently used for the natural ore particle of continuous processing large-tonnage, inorganic matter and weight chemical products, be suitable for it is different size of it is blocky,
Granular material is also suitable for the drying and sintering processes of other shapes of material, generally can all receive more satisfactory processing effect
Fruit.
However for now, the equipment based on rotary kiln is used to carry out the enterprise that direct-reduction metallic iron produces in China
Industry is actually rare, and main cause is because often there is formation rings in a kiln accident in production process, and production cannot be carried out continuously.It is external
Reducing agent used by metallized pellet is produced substantially based on natural gas using rotary kiln, on the one hand can quickly heat object
Material, while reacting with iron oxide, it is allowed to restore.China's natural gas resource is relatively limited, so directly going back in ferrous material
It is reacted mostly by reducing agent of coal during former.It is always different degrees of in coal to contain a certain number of ash contents, this
It can also be chemically reacted with certain ingredients in oxidation ball under a little ash content high temperature, produce low melting point Binder Phase, be bonded in revolution
On the refractory material of kiln inner wall, as bonding quantity is continuously increased, form the circle of protrusion, ring formation position rotary kiln internal diameter by
Gradual change is small, hinders furnace charge along the operation of rotary kiln length direction so that rotary kiln must not parking cooling, remove this under cold conditions
A little sticky objects restore the original diameter of rotary kiln, then row heating operation.This ring formation accident has seriously affected the operation of rotary kiln
Rate increases energy consumption, improves the production cost of product.
Utility model content
The purpose of this utility model is to provide a kind of reduction rotary kiln, solves material in rotary kiln and be bonded kiln wall, make back
The problem of rotary kiln internal diameter gradually becomes smaller, and influences working efficiency, exhaust emission environment, and rotary kiln flame is flowed backward.
In order to solve the above technical problems, the utility model uses following technical scheme: a kind of reduction rotary kiln, including kiln
Head, kiln body, kiln tail, material-clearing device, gear wheel, wheel belt, the charger with exhaust outlet, kiln head cover, the kiln hood and the kiln tail
Kiln body two sides are located at, the kiln tail is equipped with the charger, and the kiln hood is equipped with kiln head cover, and the kiln tail installation is high
Degree is higher than kiln hood, and the gear wheel and the wheel belt are set in the kiln body, and the gear wheel is engaged with pinion gear, the small tooth
Wheel is connected by retarder with motor, and the wheel belt is fitted close with the support roller for being fixed on ground, and the material-clearing device is coaxial
It is installed on inside the kiln body, the automatic material clearing being arranged in reduction rotary kiln can clean up in time in kiln body when kiln body operates
The material of wall adhesion prevents the operating inner diameter of reduction rotary kiln from becoming smaller, improves the working efficiency and product quality of reduction rotary kiln.
Further technical solution is: the material-clearing device includes that steel plow resistant to high temperature, end turn with pin hole
Axis, the deck with spring catch, the steel plow are connect with the shaft by the bracket of cross-shaped structure, and length and institute
It is identical to state kiln body length, described shaft one end is connected on the steel plow, and the shaft other end is pacified with pin hole part
Loaded in the deck, the deck is fixedly installed in the charger vertical inner wall, the steel plow and the kiln body
Inner surface is combined closely, and one layer of alloy wear-resisting layer is arranged in the shaving part of the steel plow, and described material-clearing device one end passes through
The spring catch of deck is fixed, and steel plow is static, and kiln body is rotated relative to steel plow, and the material of kiln body inner wall is cleared up in time
Fall, and the alloy wear-resisting layer of steel slide plate setting can increase substantially the service life of steel plow.
Further technical solution is: being provided with gas treatment equipment, the gas treatment equipment above the charger
Including exhaust fan, cyclone dust removal machine, air purifier, the exhaust outlet of the exhaust fan inlet end and the charger passes through pipeline
Connection, the exhaust fan outlet side are connected with the cyclone dust removal machine and the air evolution device in turn by pipeline, contain powder
Exhaust gas is discharged into gas treatment equipment, first passes through cyclone dust removal machine gas-solid two phases, and solid has the discharge of cyclone dust removal machine lower end, gas
Body, which goes successively to air purifier, is evolved and is discharged into atmosphere.
Further technical solution is: the kiln head cover side is provided with heating plant, and the heating plant includes end
Blast pipe, air blower with igniter, the feed pipe with control valve, the pulverizer with hopper, the blast pipe one
End is connect with the kiln head cover, and the other end is connect with the air blower, the feed pipe and the blast pipe right angle setting, described
Feed pipe upper end is equipped with the pulverizer, and regulating gate is provided between the pulverizer and hopper, crushes function and provides carefully
Suitable solid fuel is spent, regulating gate can reasonably control the dispensing speed of solid fuel, which can stablize effectively
Offer reduction rotary kiln required temperature.
Further technical solution is: the heating plant is provided with protective device, and the protective device includes unidirectional rises
The circular safety door that closes, is located at the blast pipe internal stop at spring leaf, and the circular safety door is vertically installed in blast pipe,
Circular safety door lower end is fixed on the air inlet tube wall by hinge, and the block is disposed adjacent in the round peace
Air cock upper right side, the spring leaf are inclined at circular safety door lower left, and described spring leaf one end is connected to described
Circular safety door middle position, the other end are fixedly connected on the air inlet tube wall, the safety door list in the protective device
It to opening and closing, is opened when launching solid fuel, when reduction rotary kiln stops working, the hot gas that is discharged from inside to outside due to kiln is by safety door
It closes, prevents remaining solid fuel from entering reduction rotary kiln in time, prevent kiln flame from flowing backward and cause the safety accidents such as explosion.
Further technical solution is: the kiln body is provided with temperature control device, and the temperature control device includes being located at the kiln
Temperature inductor, digital display, motor regulated valve with it, described temperature inductor one end and digital display electricity
Connection, the digital display other end are electrically connected with the motor regulated valve, which can timely feedback and revert back
Real time temperature in rotary kiln, while passing through the dispensing speed that motor regulated valve further controls fixed fuel, it prevents from reverting back
Extremes of temperature in rotary kiln further promotes the quality of production.
The utility model can be with: insulating layer is provided in the kiln body, the insulating layer includes the section of kiln body inner surface
Energy coating, vacuum insulation panel, refractory cotton, the refractory cotton are filled between energy-saving coating and vacuum insulation panel, and the energy conservation applies
Layer is thermal insulation fire-resistant dope layer, and the vacuum insulation panel is additionally provided with one layer of antifriction alloy working lining, resistance on vacuum insulation panel
Abrasion can also be effectively reduced by merging golden working lining, and the insulating layer of the kiln body setting can effectively separate kiln temperature and extraneous heat
Transmitting, and then the loss of heat is reduced, the use of fuel is saved, production cost, the antifriction alloy work on vacuum insulation panel are saved
Abrasion can also be effectively reduced by making layer.
Compared with prior art, the utility model can at least reach one of following beneficial effect:
1, the utility model provides a kind of reduction rotary kiln with material-clearing device, it is therefore prevented that material is sent out on rotary kiln wall
Raw bonding phenomenon, ensure that the operating inner diameter of rotary kiln, improves working efficiency and yield.
2, the gas treatment equipment of the utility model effectively controls the exhaust emission of rotary kiln generation, while to greatest extent
Reduce material with the loss of exhaust gas, save the cost protects environment.
3, heat needed for the offer reduction rotary kiln that the heating plant of the utility model can be effectively stable, while also guaranteeing
The reverse irrigation phenomenon of gas or flame will not occur in rotary kiln.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the diagrammatic cross-section of the material-clearing device of the utility model.
Fig. 3 is the sectional view of the utility model Fig. 2.
Fig. 4 is the structural schematic diagram of the utility model gas treatment equipment.
Fig. 5 is the heating plant structural schematic diagram of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Fig. 1 is shown: a kind of reduction rotary kiln, including kiln hood 1, kiln body 2, kiln tail 3, material-clearing device 4, gear wheel 5, wheel belt
6, the charger 7 with exhaust outlet, kiln head cover 8, the kiln hood 1 and the kiln tail 3 are located at 2 two sides of kiln body, and the kiln tail 3 is pacified
Equipped with the charger 7, the kiln hood 1 is equipped with kiln head cover 8, and 3 mounting height of kiln tail is higher than kiln hood 1, the gear wheel 5
Be set in the kiln body 2 with the wheel belt 6, the gear wheel 5 is engaged with pinion gear 9, the pinion gear 9 by retarder 10 with
Motor 11 is connected, and the wheel belt 6 is fitted close with the support roller 12 for being fixed on ground, and the material-clearing device is coaxially installed on described
Inside kiln body 2.
Fig. 2 and Fig. 3 show one embodiment: the material-clearing device 4 has including steel plow 41 resistant to high temperature, end
The shaft 42 of pin hole, the deck 43 with spring catch 44, the steel plow 41 pass through cross-shaped structure with the shaft 42
Bracket 45 connects, and length is identical as the kiln body length, and described 42 one end of shaft is connected on the steel plow 41, described
42 other end of shaft is partly installed in the deck 43 with pin hole, and it is perpendicular that the deck 43 is fixedly installed in the charger 7
On straight inner wall, the steel plow 41 is combined closely with 2 inner surface of kiln body, the shaving part setting of the steel plow 41
One layer of alloy wear-resisting layer.
Fig. 4 shows one embodiment: gas treatment equipment, the gas treatment dress are provided with above the charger 7
It sets including exhaust fan 19, cyclone dust removal machine 20, air purifier 21, the row of 19 inlet end of exhaust fan and the charger 7
Port is connected by pipeline, and 19 outlet side of exhaust fan is connected with the cyclone dust removal machine 20 and the sky in turn by pipeline
Gas purifier 21.
Fig. 5 shows one embodiment: the kiln head cover side is provided with heating plant, and the heating plant includes end
Blast pipe 14, air blower 15 with igniter 13, the feed pipe 17 with control valve 16, the pulverizer 18 with hopper,
Described 14 one end of blast pipe is connect with the kiln head cover 8, and the other end is connect with the air blower 15, the feed pipe 17 with it is described
14 right angle setting of blast pipe, 17 upper end of feed pipe are equipped with the pulverizer 18, set between the pulverizer 18 and hopper
It is equipped with regulating gate.
Embodiment: the heating plant is provided with protective device, and the protective device includes the unidirectional circular safety for rising and closing
Door 22, is located at 14 internal stop 24 of blast pipe at spring leaf 23, and the circular safety door 22 is vertically installed in blast pipe 14,
22 lower end of circular safety door is fixed on 14 tube wall of blast pipe by hinge, and the block 24 is disposed adjacent described
22 upper right side of circular safety door, the spring leaf 23 are inclined at 22 lower left of circular safety door, the spring leaf 23
One end is connected to 22 middle position of circular safety door, and the other end is fixedly connected on 14 tube wall of blast pipe.
Embodiment: the kiln body 2 is provided with temperature control device, and the temperature control device includes the temperature being located on the kiln body 2
Inductor, digital display, motor regulated valve 16, described temperature inductor one end are electrically connected with the digital display, institute
The digital display other end is stated to be electrically connected with the motor regulated valve 16.
Preferred embodiment: being provided with insulating layer in the kiln body 2, the insulating layer includes that the energy conservation of kiln body inner surface applies
Layer, vacuum insulation panel, refractory cotton, the refractory cotton are filled between energy-saving coating and vacuum insulation panel, and the energy-saving coating is
Thermal insulation fire-resistant dope layer, the vacuum insulation panel are additionally provided with one layer of antifriction alloy working lining.
Although reference be made herein to the utility model is described in multiple explanatory embodiments of the utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations
It will fall within scope and spirit disclosed in the present application.More specifically, it discloses in the application, drawings and claims
In range, can building block to theme combination layout or layout carry out a variety of variations and modifications.In addition to building block or
It is laid out outside the modification and improvement carried out, to those skilled in the art, other purposes also will be apparent.
Claims (7)
1. a kind of reduction rotary kiln, it is characterised in that: including kiln hood (1), kiln body (2), kiln tail (3), material-clearing device (4), canine tooth
Take turns (5), wheel belt (6), the charger (7) with exhaust outlet, kiln head cover (8), the kiln hood (1) and the kiln tail (3) difference position
In kiln body (2) two sides, the kiln tail (3) is equipped with the charger (7), and the kiln hood (1) is equipped with kiln head cover (8), described
Kiln tail (3) mounting height is higher than kiln hood (1), and the gear wheel (5) and the wheel belt (6) are set in the kiln body (2), described big
Gear (5) is engaged with pinion gear (9), and the pinion gear (9) is connected by retarder (10) with motor (11), the wheel belt
(6) it is fitted close with the support roller (12) for being fixed on ground, it is internal that the material-clearing device (4) is coaxially installed on the kiln body (2).
2. a kind of reduction rotary kiln according to claim 1, it is characterised in that: the material-clearing device (4) includes high temperature resistant
Steel plow (41), end with pin hole shaft (42), have spring catch (44) deck (43), the steel plow
(41) it is connect with the shaft (42) by the bracket (45) of cross-shaped structure, and length is identical as the kiln body length, it is described
Shaft (42) one end is connected with the steel plow (41), and shaft (42) other end is partly installed in the card with pin hole
Seat (43) in, the deck (43) is fixedly installed in the charger (7) vertical inner wall, the steel plow (41) with it is described
Kiln body (2) inner surface is combined closely, and one layer of alloy wear-resisting layer is arranged in the shaving part of the steel plow (41).
3. a kind of reduction rotary kiln according to claim 1, it is characterised in that: be provided with gas above the charger (7)
Body processing unit, the gas treatment equipment include exhaust fan (19), cyclone dust removal machine (20), air purifier (21), described
Exhaust fan (19) inlet end is connect with the exhaust outlet of the charger (7) by pipeline, and exhaust fan (19) outlet side passes through
Pipeline is connected with the cyclone dust removal machine (20) and the air purifier (21) in turn.
4. a kind of reduction rotary kiln according to claim 1, it is characterised in that: the kiln head cover side is provided with for hot charging
It sets, the heating plant includes that end has the blast pipe (14) of igniter (13), air blower (15), has control valve (16)
Feed pipe (17), the pulverizer (18) with hopper, described blast pipe (14) one end is connect with the kiln head cover (8), another
End is connect with the air blower (15), the feed pipe (17) and the blast pipe (14) right angle setting, the feed pipe (17)
Upper end is equipped with the pulverizer (18), is provided with regulating gate between the pulverizer (18) and hopper.
5. a kind of reduction rotary kiln according to claim 4, it is characterised in that: the heating plant is provided with protection dress
It sets, the protective device includes unidirectional the circular safety door (22) closed, spring leaf (23), is located at gear in the blast pipe (14)
Block (24), the circular safety door (22) are vertically installed in blast pipe (14), and circular safety door (22) lower end passes through hinge
Chain is fixed on the blast pipe (14) tube wall, and the block (24) is disposed adjacent in circular safety door (22) upper right side,
The spring leaf (23) is inclined at circular safety door (22) lower left, and described spring leaf (23) one end is connected to described
Circular safety door (22) middle position, the other end are fixedly connected on the blast pipe (14) tube wall.
6. a kind of reduction rotary kiln according to claim 1, it is characterised in that: the kiln body (2) is provided with temperature control device,
The temperature control device includes temperature inductor, digital display, the motor regulated valve (16) being located on the kiln body (2), institute
It states temperature inductor one end to be electrically connected with the digital display, the digital display other end and the motor regulated valve
(16) it is electrically connected.
7. a kind of reduction rotary kiln according to claim 1, it is characterised in that: it is provided with insulating layer in the kiln body (2),
The insulating layer includes the energy-saving coating, vacuum insulation panel, refractory cotton of kiln body inner surface, and the refractory cotton is filled in energy-saving coating
Between vacuum insulation panel, the energy-saving coating be thermal insulation fire-resistant dope layer, the vacuum insulation panel be additionally provided with one layer it is wear-resisting
Alloy working lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920143983.2U CN209605572U (en) | 2019-01-28 | 2019-01-28 | A kind of reduction rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920143983.2U CN209605572U (en) | 2019-01-28 | 2019-01-28 | A kind of reduction rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209605572U true CN209605572U (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920143983.2U Expired - Fee Related CN209605572U (en) | 2019-01-28 | 2019-01-28 | A kind of reduction rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209605572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494849A (en) * | 2021-05-24 | 2021-10-12 | 安徽省泽乾冶金科技有限公司 | Rotary kiln clout recovery unit |
-
2019
- 2019-01-28 CN CN201920143983.2U patent/CN209605572U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494849A (en) * | 2021-05-24 | 2021-10-12 | 安徽省泽乾冶金科技有限公司 | Rotary kiln clout recovery unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20220128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |