CN217781244U - Chromite pellet production device - Google Patents
Chromite pellet production device Download PDFInfo
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- CN217781244U CN217781244U CN202221923697.6U CN202221923697U CN217781244U CN 217781244 U CN217781244 U CN 217781244U CN 202221923697 U CN202221923697 U CN 202221923697U CN 217781244 U CN217781244 U CN 217781244U
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- chromite
- heat preservation
- bin
- preservation bin
- pellet production
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Abstract
The utility model relates to the field of energy conservation in chromite smelting, in particular to a chromite pellet production device, which comprises a roasting furnace, wherein a toothed roller discharger is arranged at the lower part of the roasting furnace, a reciprocating distributor is arranged at the top of the roasting furnace, the device also comprises a heat preservation bin and a weighing hopper, the toothed roller discharger is connected with the heat preservation bin through a sealing material pipe, the heat preservation bin is connected with the weighing hopper, and a tank car is arranged below the weighing hopper; the two sides of the heat preservation bin are respectively provided with an auxiliary bin which is connected with the weighing hopper. The novel process does not need to cool the high-temperature chromite pellets, can also utilize the high-temperature chromite to preheat auxiliary materials, reduces the heat consumption for chromite smelting, and improves the production efficiency of the electric furnace.
Description
Technical Field
The utility model relates to a chromite smelts energy-conserving field, especially a chromite pelletizing apparatus for producing.
Background
At present, the known process for smelting ferrochrome by using chromite pellets comprises the following steps: the produced chromite pellets are cooled to less than 120 ℃, then are mixed with smelting auxiliary materials, and are loaded into a storage bin at the top of a smelting furnace, and cold materials enter an electric furnace for smelting. A preheating furnace is arranged at the top of a smelting electric furnace, pellets and auxiliary materials are conveyed to the preheating furnace in a cold state, and are heated and fed into the smelting electric furnace. At present, a cold charging method is mostly adopted, and the cold charging causes high power consumption of a smelting electric furnace, long smelting period, high energy consumption and low yield. The charging process of the preheating furnace is arranged at the top of the smelting electric furnace, the mounting heights of all the preheating furnaces are high, the charging is difficult, the investment is large, and meanwhile, the preheating also needs fuel gas and consumes energy; the arrangement of the preheating furnace causes higher investment cost, more difficult daily maintenance and operation and high running cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a chromite pellet apparatus for producing which can directly utilize the suspected heat of pellet, reduces the heat consumption of ferrochrome smelting, reduces the smelting time of electric stove, improves the production efficiency of electric stove.
This novel technical scheme who adopts:
a chromite pellet production device comprises a roasting furnace, wherein a toothed roller discharger is arranged at the lower part of the roasting furnace, a reciprocating distributor is arranged at the top of the roasting furnace, the chromite pellet production device also comprises a heat preservation bin and a metering hopper, the toothed roller discharger is connected with the heat preservation bin through a sealing material pipe, the heat preservation bin is connected with the metering hopper, and a tank car is arranged below the metering hopper; and the two sides of the heat-preservation bin are respectively provided with an auxiliary bin which is connected with the metering hopper.
Compared with the prior art, this neotype beneficial effect is:
this novel direct utilization of pellet sensible heat is in smelting, and the chromite pellet after the calcination need not cool off, keeps warm to the chromite pellet through heat preservation storehouse, reduces the heat consumption of chromium iron smelting, and the auxiliary material is preheated at the in-process of feeding to high temperature pellet in addition, has saved the time for follow-up electric furnace smelting, has improved the production efficiency of electric furnace.
Further, the preferred scheme that this novel adoption is:
the lower part of the heat preservation bin is provided with two obliquely arranged material distribution bins, the lower port of each material distribution bin is a discharge port of the heat preservation bin, and a first feeder is arranged below the discharge port of each heat preservation bin respectively.
The discharge gate of every auxiliary material storehouse bottom is connected with the pan feeding mouth at weighing hopper top respectively, and is provided with an auxiliary material batcher below the discharge gate of every auxiliary material storehouse respectively.
And a feeding machine II is arranged below the discharge hole at the bottom of the sealed material pipe.
The temperature of the chromite pellets in the heat-insulating bin is 500 to 900 ℃.
A fan-shaped valve is arranged at the discharge hole at the bottom of the metering hopper.
Drawings
FIG. 1 is a schematic structural diagram of the present invention; FIG. 2 is a side view of FIG. 1;
in the figure: a reciprocating distributor 1; a roasting furnace 2; a toothed-roller discharger 3; sealing the material pipe 4; a feeding machine II 5; a heat preservation bin 6; a distribution bin 61; a first feeder 7; a weighing hopper 8; a sector valve 9; a material tank 10; a tank car 11; an auxiliary bin 12; and an auxiliary material feeder 13.
Detailed Description
The invention is further described below with reference to the accompanying drawings and specific examples.
As shown in fig. 1 and 2, a chromite pellet production device mainly comprises a roasting furnace 2, a toothed roller discharger 3, a heat preservation bin 6, a metering hopper 8 and the like, wherein a reciprocating distributor 1 is installed at the top of the roasting furnace 2, and a blanking point of the reciprocating distributor 1 is aligned with a feeding port at the top of the roasting furnace 2.
The lower part of the roasting furnace 2 is provided with a tooth roller discharger 3, and a discharge port at the bottom of the roasting furnace 2 is connected with a feeding port at the top of the tooth roller discharger 3. The discharge port of the tooth roller discharger 3 is connected with the top inlet of the sealing material pipe 4, a second feeding machine 5 is arranged below the bottom outlet of the sealing material pipe 4, and the blanking end of the second feeding machine 5 is aligned to the feeding port at the top of the heat preservation bin 6 below the feeding machine.
Be equipped with wear-resisting thermal insulation material on the 6 inner walls in heat preservation storehouse, the lower part in heat preservation storehouse 6 has the branch feed bin 61 that two slopes set up, two branch feed bins 61 are "eight" word structure and arrange, the lower port of every branch feed bin 61 is the discharge gate of heat preservation storehouse 6 respectively, a batcher 7 is installed respectively to the below of every discharge gate, the pan feeding mouth at 8 tops of below weighing hopper is aimed at to the blanking end of batcher 7 separately, install a sector valve 9 in the pan feeding mouth of every weighing hopper 8, and the pan feeding mouth of tank car 11 material loading jar 10 below it is aimed at to the bottom discharge gate of weighing hopper 8.
As shown in fig. 1, in this embodiment, an auxiliary material bin 12 is respectively installed on two sides of the heat preservation bin 6, an auxiliary material feeder 13 is installed below a discharge port at the bottom of the auxiliary material bin 12, and a blanking end of the auxiliary material feeder 13 is placed at an upper end of a feeding port at the top of the weighing hopper 8.
When the chromite pellet feeding device works, chromite pellets are evenly distributed into a roasting furnace 2 through a reciprocating distributor 1, the chromite pellets have high strength and high temperature after being dried and roasted in the roasting furnace 2, the temperature can reach 1000 ℃, the chromite pellets are discharged into a sealing material pipe 4 through a toothed roller discharger 3, the chromite pellets fall on a feeding machine two 5 below the sealing material pipe 4 through the sealing material pipe 4, the chromite pellets are fed into a heat preservation bin 6 through the feeding machine two 5 to be stored, and the temperature of the chromite pellets in the heat preservation bin 6 is controlled to be 500-900 ℃.
The chromite pellets in the heat preservation bin 6 are respectively discharged onto the first feeding machine 7 through the two material distribution bins 61 below, then are fed into the corresponding metering hoppers 8 through the first feeding machine 7, the chromite pellets falling into the hoppers are weighed by the metering hoppers 8, and when the weighing value reaches a set value, the first feeding machine 7 above the metering hoppers 8 stops feeding.
After the chromite pellets are loaded into the weighing hoppers 8, the auxiliary material feeder 13 is started to supply the auxiliary materials to the corresponding weighing hoppers 8 according to the ration, and the auxiliary materials fall on the upper parts of the chromite pellets so as to reduce the heat loss of the chromite pellets.
The tank car 11 moves to the lower part of the metering hopper 8, the sector valve 9 at the upper discharge port of the metering hopper 8 is opened, and the mixture of the chromite pellets and the auxiliary materials falls into the charging bucket 10 of the tank car 11.
After the materials in the metering hopper 8 are discharged, the fan-shaped valve 9 on the metering hopper 8 is closed, the first feeder 7 below the heat preservation bin 6 is opened, and the materials continue to be discharged into the metering hopper 8.
After the high-temperature chromite pellets and auxiliary materials are loaded into the material loading tank 10 of the tank truck 11, the material loading tank is transported to a hoisting position of a smelting workshop through the tank truck 11, and the mixture in the material loading tank 10 is conveyed into the electric furnace through a crane.
The unloaded bucket 10 is transported again to the lower part of the weighing hopper 8 by the tank car 11 to wait for the next charging.
In the embodiment, the roasted high-temperature chromite pellets do not need to be cooled, sensible heat of the chromite pellets at the temperature of 500-900 ℃ can be fully utilized, the production energy consumption of the chromite pellets is reduced, the service life of the roasting furnace is prolonged, more importantly, auxiliary materials are preheated in the charging process of the high-temperature chromite pellets, the sensible heat of the chromite pellets is fully utilized in smelting, the heat consumption of chromite smelting is reduced, the power consumption is saved, the smelting time is shortened, and the production efficiency of an electric furnace is improved.
The above description is only for the specific embodiment of the present invention, but the protection of the present invention is not limited thereto, and all equivalent changes or substitutions to the technical features of the present invention that can be made by those skilled in the art are included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a chromite pelletizing apparatus for producing, is including roasting the burning furnace, is provided with the fluted roller tripper in the lower part of roasting the burning furnace, and the top of roasting the burning furnace is provided with reciprocal distributing device, its characterized in that: the tooth roller discharger is connected with the heat preservation bin through a sealing material pipe, the heat preservation bin is connected with the measuring hopper, and a tank car is arranged below the measuring hopper; the two sides of the heat preservation bin are respectively provided with an auxiliary bin which is connected with the weighing hopper.
2. The chromite pellet production plant of claim 1, wherein: the lower part of the heat preservation bin is provided with two obliquely arranged material distribution bins, the lower port of each material distribution bin is a discharge port of the heat preservation bin, and a first feeder is arranged below the discharge port of each heat preservation bin respectively.
3. The chromite pellet production plant of claim 1, wherein: the discharge gate of every auxiliary material storehouse bottom is connected with the pan feeding mouth at weighing hopper top respectively, and is provided with an auxiliary material batcher below the discharge gate of every auxiliary material storehouse respectively.
4. The chromite pellet production plant of claim 1, wherein: and a second feeder is arranged below the discharge port at the bottom of the sealing material pipe.
5. The chromite pellet production plant of claim 1, wherein: the temperature of the chromite pellets in the heat-insulating bin is 500 to 900 ℃.
6. The chromite pellet production plant of claim 1, wherein: a fan-shaped valve is arranged at the discharge hole at the bottom of the metering hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221923697.6U CN217781244U (en) | 2022-07-25 | 2022-07-25 | Chromite pellet production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221923697.6U CN217781244U (en) | 2022-07-25 | 2022-07-25 | Chromite pellet production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217781244U true CN217781244U (en) | 2022-11-11 |
Family
ID=83940542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221923697.6U Active CN217781244U (en) | 2022-07-25 | 2022-07-25 | Chromite pellet production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217781244U (en) |
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2022
- 2022-07-25 CN CN202221923697.6U patent/CN217781244U/en active Active
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