CN210587144U - Casting ladle baking device - Google Patents
Casting ladle baking device Download PDFInfo
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- CN210587144U CN210587144U CN201921779745.7U CN201921779745U CN210587144U CN 210587144 U CN210587144 U CN 210587144U CN 201921779745 U CN201921779745 U CN 201921779745U CN 210587144 U CN210587144 U CN 210587144U
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Abstract
The utility model relates to a ladle baking device, which comprises a ladle baking furnace and a ladle transporting vehicle, wherein the ladle baking furnace is a rectangular frame body, the left side edge of the rectangular frame body is provided with a flue, the top surface, the front end surface, the rear end surface and the left side surface of the rectangular frame body are respectively provided with a panel, the panel is internally lined with a ceramic fiber module, a plurality of burner holes are arranged on the panel of the top surface, burners are arranged on the burner holes, and the burners extend into the furnace body; the ladle transporting vehicle is provided with a vehicle body and wheels, wherein a high temperature resistant layer is arranged on the vehicle body, a casting ladle position for placing a casting ladle is arranged on the high temperature resistant layer, and the outer wall of the right side of the vehicle body extends upwards to be used as a furnace door of the ladle drying furnace; the utility model discloses simple structure, it is convenient to maintain, improves and toasts the quality, shortens and toasts the time, extension furnace body life practices thrift and toasts the energy.
Description
Technical Field
The utility model belongs to the technical field of the concise technique of copper and specifically relates to a ladle baking device.
Background
Ladles are used in the casting of copper refining and serve the function of receiving molten copper and delivering it to the mould. As the temperature of the copper liquid is 1120-1220 ℃, the steel cladding lining of the casting ladle is made of refractory castable so as to protect the shell. After each casting operation, the molten copper in the casting ladle is remained and solidified, and the condensed copper is tightly adhered to the casting material, so that the casting material layer of the casting ladle is damaged when the condensed copper is removed. Before the next casting operation, the casting material of the casting ladle needs to be built again. Because the casting material uses water as a bonding agent, the casting ladle needs to be thoroughly dried before use, otherwise once the casting ladle contacts copper liquid, residual moisture in the casting material can be rapidly evaporated, the volume is rapidly expanded, so that a casting material layer is burst and collapsed, and the casting operation is interrupted.
The current method is to use a medium pressure burner to directly fire the inner surface of the ladle, fire the inner surface of the ladle with flame, and bake and dry the inner surface. There are problems as follows:
1. the firepower of the burner is uneven, the casting ladle is not uniformly heated, and high temperature exists locally, so that moisture in the casting material is easily evaporated rapidly, the volume is rapidly expanded, and the casting material layer is cracked and collapsed.
2. The fire of the burner is too strong, and the temperature can be rapidly increased when the operation is careless, so that the castable layer bursts.
2. The heat loss is large, the heat released by the combustion of the natural gas is dissipated into the air through heat radiation, most of the heat is wasted, and the heat radiation also causes severe working environment around the natural gas.
3. The casting factory building needs to keep good ventilation, is easily influenced by the environment during baking operation, and under the windy condition, burner flame escapes, causing heat waste.
4. The energy consumption is high, and the gas consumption of the baking ladle per furnace reaches 160-200 Nm 3.
5. The natural gas quantity is difficult to control and is easy to be ultrahigh.
6. The burner is required to have a longer flame length, so a medium pressure burner for diffusion combustion is selected. However, the diffusion combustion has the problems that the larger the radial diffusion degree of the flame is along with the increase of the length of the flame, the careless operation is carried out, the flame burns to a steel shell of a casting ladle, the deformation is caused, the use is not available, and the service life of the casting ladle is shortened.
7. The medium pressure burner has incomplete combustion and low utilization rate of natural gas.
Disclosure of Invention
The utility model aims at solving the problems existing above, providing a simple structure, improving the baking quality, shortening the baking time, prolonging the service life of the furnace body and saving the baking energy.
The utility model relates to a water a packet baking equipment, its characterized in that: the baking oven is a rectangular frame body, a flue is arranged on the left side of the rectangular frame body, panels are arranged on the top surface, the front end surface, the rear end surface and the left side surface of the rectangular frame body, ceramic fiber modules are lined in the panels, a plurality of burner holes are formed in the panel on the top surface, burners are arranged on the burner holes, and the burners extend into the oven body; the ladle transporting vehicle is provided with a vehicle body and wheels, a high temperature resistant layer is arranged on the vehicle body, a ladle position for placing a ladle is arranged on the high temperature resistant layer, and the outer wall of the right side of the vehicle body extends upwards to serve as a furnace door of the ladle drying furnace.
The high-temperature resistant layer on the car body sequentially comprises an asbestos plate, clay insulating bricks and a heat-insulating pouring material layer from inside to outside, and a pouring ladle position is reserved on the heat-insulating pouring material layer.
And an observation port is arranged on the side wall of the ladle drying furnace.
Two rows of burner holes are formed in the top panel, and each row of 3-5 burner holes are uniformly distributed along the length direction of the furnace body.
A car bumper is arranged below the left side of the ladle drying furnace.
The utility model is characterized in that:
1. arranging 2 rows of 3-5 burners, wherein the burners are uniformly distributed along the length direction of the ladle, the heat supply is uniform, the temperature in the ladle is uniform, and no obvious high-temperature region or low-temperature region exists; the heating rate is basically synchronous. The baking quality is improved, the castable cannot crack, and the baking time is shortened.
2. The gas and the combustion air are mixed in the gas mixing pipe at the front end of the burner, and then the gas is sprayed out of the burner to be ignited, so that the combustion is complete, the flame length is short, and the combustion efficiency is high.
3. The burner has vertical flame and small radial diffusion degree of the flame, is distributed in the range of the casting ladle, can not burn to the steel shell of the casting ladle, and prolongs the service life of the casting ladle.
4. The firepower of each burner is independently adjusted, small natural gas amount can be adopted initially, rapid temperature rise can not be caused, and cracking of castable is avoided
5. According to the baking condition, the number of the burners and the natural gas amount of the burners are flexibly increased or decreased, or the air-gas ratio of the burners is adjusted, so that the natural gas is saved.
6. The ladle baking furnace and the ladle transporting vehicle form a sealing structure together, so that the baking operation is not influenced by external air flow; meanwhile, the flame cannot overflow, the surrounding environment is not polluted, and the heat loss is reduced.
7. The ladle car can bear high temperature and mechanical impact, and has long service life.
8. The ladle baking furnace is of a full-fiber structure, the density of a ceramic fiber furnace lining is 280 kg/m3, the ceramic fiber furnace lining is 70% lighter than a light heat-insulating brick lining and 75% -80% lighter than a light castable lining, the load of a furnace body steel structure can be greatly reduced, and the service life of the furnace body is prolonged.
9. The ceramic fiber used in the baking furnace has small thermal conductivity coefficient, the thermal conductivity at 600 ℃ is less than 0.22W. (m.K) -1, the thermal conductivity at 1000 ℃ is less than 0.28W. (m.K) -1, is about 1/8 of light clay brick, and is 1/10 of light heat-resistant castable. The heat dissipation loss in the baking process is less. Under the condition that the temperature in the furnace is 800 ℃, the temperature of the furnace shell is only 40-45 ℃.
10. The low-pressure burner nozzle has simple structure, low manufacturing cost and low acquisition cost.
The utility model discloses simple structure, it is convenient to maintain, improves and toasts the quality, shortens and toasts the time, extension furnace body life practices thrift and toasts the energy.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a right side view of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 2;
fig. 5 is a sectional view B-B of fig. 2.
In the figure: 1-ladle baking furnace, 2-ladle transporting vehicle, 3-flue, 4-top surface, 5-front end surface, 6-rear end surface, 7-left side surface, 8-ceramic fiber module, 9-burner hole, 10-burner, 11-vehicle body, 12-vehicle wheel, 13-ladle position, 14-ladle baking furnace door, 15-asbestos plate, 16-clay insulating brick, 17-insulating castable layer, 18-observation port, 19-car stop and 20-track.
Detailed Description
Referring to fig. 1-5, a ladle baking device comprises a ladle baking furnace 1 and a ladle transporting vehicle 2, wherein the ladle baking furnace is a rectangular frame, a flue is arranged on the left side of the rectangular frame, panels are arranged on the top surface 4, the front end surface 5, the rear end surface 6 and the left side surface 7 of the rectangular frame, ceramic fiber modules 8 (resistant to temperature of 1200 ℃) with the thickness of 150-200 mm are lined in the panels, the ceramic fiber modules are fixed by 100 mm-long anchoring nails, two rows of burner holes 9 are formed in the top panel, 4 burners are uniformly arranged in each row along the length direction of the furnace, low-pressure semi-premixing burners 10 are vertically placed, the burners are vertically arranged, natural gas with the pressure of 10-35 KPa and combustion air of 10-35 KPa are firstly mixed on a pipeline, the generated mixed gas of 10-35 KPa is sent into the burners through a gas mixing pipe, and the natural gas with the pressure of 5-25N3The amount of the added combustion-supporting air is 11.5 times of the amount of the natural gas; the ladle transporting vehicle is provided with a vehicle body 11 and wheels 12, a 2.2KW electric winch (powered by a winding cable) is used as traction power, the trolley body is moved into or out of a ladle drying furnace, a rail 20 extends to the lower part of the ladle drying furnace, the vehicle body of the ladle transporting vehicle is sequentially lined with a 20mm asbestos plate 15, a vertical masonry 230mm clay insulating brick 16 and a 300mm insulating castable layer 17 from inside to outside, and a casting ladle position 13 is reserved in the castable layer and used for placing a casting ladle; the distance between the casting ladle position and the outer contour of the casting ladle is 10mm, and the surface of the casting ladle is flush with the surface of the casting material layer after the casting ladle is placed in the casting ladle position; the outer wall of the right side of the car body extends upwards to be used as a baking oven door 14; the inner side of the extension part is lined with ceramic fiber with the thickness of 200 mm; an observation port 15 is arranged on the side wall of the ladle drying furnace; a vehicle stop 16 is arranged below the left side of the furnace body.
Before operation, a casting ladle is placed into a casting ladle position of the ladle transporting vehicle, the ladle transporting vehicle is pushed to the lower portion of the ladle drying furnace from the right side of the ladle drying furnace, when the ladle transporting vehicle contacts a vehicle stop, the ladle transporting vehicle stops advancing, and the ladle transporting vehicle and the ladle drying furnace form a sealed whole together, so that the effect of closing a drawer is the same. And then, starting the low-pressure semi-premixed burner positioned at the top of the ladle baking furnace to bake the casting ladle. Observing the combustion effect of the burner and the baking condition of the ladle through an observation port on the side wall of the ladle baking furnace, and correspondingly adjusting the natural gas dosage and the wind of the burnerGas ratio. And after the baking is finished, the ladle transporting vehicle is moved out, and the baked casting ladle is hung away. The gas consumption of the baking ladle per heat is reduced to 50.6Nm3。
Claims (5)
1. A casting ladle baking device is characterized in that: the baking oven is a rectangular frame body, a flue is arranged on the left side of the rectangular frame body, panels are arranged on the top surface, the front end surface, the rear end surface and the left side surface of the rectangular frame body, ceramic fiber modules are lined in the panels, a plurality of burner holes are formed in the panel on the top surface, burners are arranged on the burner holes, and the burners extend into the oven body; the ladle transporting vehicle is provided with a vehicle body and wheels, a high temperature resistant layer is arranged on the vehicle body, a ladle position for placing a ladle is arranged on the high temperature resistant layer, and the outer wall of the right side of the vehicle body extends upwards to serve as a furnace door of the ladle drying furnace.
2. A ladle baking apparatus as claimed in claim 1, wherein: the high-temperature resistant layer on the car body sequentially comprises an asbestos plate, a clay insulating brick and a heat-insulating pouring material layer from inside to outside, and a pouring ladle position is reserved on the heat-insulating pouring material layer.
3. A ladle baking apparatus as claimed in claim 1, wherein: and an observation port is arranged on the side wall of the ladle drying furnace.
4. A ladle baking apparatus as claimed in claim 1, wherein: two rows of burner holes are formed in the top panel, and each row of 3-5 burner holes are uniformly distributed along the length direction of the furnace body.
5. A ladle baking apparatus as claimed in claim 1, wherein: a car bumper is arranged below the left side of the ladle drying furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921779745.7U CN210587144U (en) | 2019-10-23 | 2019-10-23 | Casting ladle baking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921779745.7U CN210587144U (en) | 2019-10-23 | 2019-10-23 | Casting ladle baking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210587144U true CN210587144U (en) | 2020-05-22 |
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ID=70700360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921779745.7U Active CN210587144U (en) | 2019-10-23 | 2019-10-23 | Casting ladle baking device |
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| CN (1) | CN210587144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198977A (en) * | 2021-05-20 | 2021-08-03 | 西安聚能高温合金材料科技有限公司 | Device and process for preheating master alloy tool |
-
2019
- 2019-10-23 CN CN201921779745.7U patent/CN210587144U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198977A (en) * | 2021-05-20 | 2021-08-03 | 西安聚能高温合金材料科技有限公司 | Device and process for preheating master alloy tool |
| CN113198977B (en) * | 2021-05-20 | 2023-11-24 | 西安聚能高温合金材料科技有限公司 | Device for preheating master alloy tool and preheating process thereof |
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