CN212274604U - Chain row type vanadium ore roasting tunnel kiln - Google Patents
Chain row type vanadium ore roasting tunnel kiln Download PDFInfo
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- CN212274604U CN212274604U CN202021296793.3U CN202021296793U CN212274604U CN 212274604 U CN212274604 U CN 212274604U CN 202021296793 U CN202021296793 U CN 202021296793U CN 212274604 U CN212274604 U CN 212274604U
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Abstract
The utility model discloses a chain bar formula navajoite roasting tunnel cave, including the tunnel cave body, transport the chain bar of mineral aggregate and the roasting device of calcination mineral aggregate at the internal kiln, the kiln body includes the feed preparation pond backward in the past in proper order, the district of presintering, calcination district and cooling space, and the top of the feed preparation pond is equipped with the stoving feed bin of vertical setting, and stoving feed bin and feed preparation pond are equipped with the feed opening within a definite time, and the cooling space rear is equipped with the discharge gate, and the chain bar is carried the mineral aggregate from the feed preparation pond in proper order, the district of presintering, the calcination district, the cooling space to the discharge gate. The utility model discloses a chain bar formula transmission system replaces track kiln car to accomplish the transport of the interior mineral aggregate of tunnel cave, need not the position of kiln car in the dispatch kiln, can circulate reciprocal carry out incessant transport to the mineral aggregate, improves conveying efficiency and production efficiency by a wide margin, saves the construction investment of tunnel cave. The utility model discloses an each workspace configuration of tunnel cave is reasonable, can coordinate each link of baking, and the make full use of waste heat improves the calcination effect, simplifies production processes, has good market spreading value.
Description
Technical Field
The utility model relates to a mineral production field, concretely relates to chain bar formula vanadium ore bakes over a slow fire tunnel cave.
Background
The production of vanadium ore mainly comprises wet production and fire production. The investment for producing vanadium ore by a wet method is large, the material consumption is large, the cost is high, the three wastes are discharged and are amplified, the environmental pollution is serious, and the method is not suitable for the modern environmental protection production requirement. Therefore, the fire method is selected to roast the vanadium ore to produce the vanadium ore, which becomes the first choice for producing the vanadium ore.
The fire method for producing vanadium ore mostly adopts a tunnel kiln for production, but in the prior art, when the tunnel kiln is used for producing vanadium ore, the ore needs to be broken and ground, bricks need to be made and stacked, then the vanadium ore enters the tunnel kiln through a kiln car for drying and then can be produced after roasting, secondary breaking and grinding and leaching, the production cost is high, various machines and carriers need to be used in the production process, and meanwhile, in order to enable the carriers for transporting mineral aggregates to pass, a larger space needs to be built in the tunnel kiln. Therefore, the construction cost of producing vanadium ore by the pyrogenic process in the prior art is higher, the early investment is more, and the operation cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problems and provide a chain-grate vanadium ore roasting tunnel kiln. The chain row capable of reciprocating circularly is assembled in the tunnel kiln body to realize the mineral aggregate transportation in the tunnel kiln, so that the construction cost and the operation cost of the tunnel kiln are saved. In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a chain bar formula navy furnace is baked over a slow fire to vanadium ore deposit, includes the tunnel cave body, transports the chain bar of mineral aggregate and the calcination device of calcination mineral aggregate at the kiln internal, the kiln body includes in proper order backward in the past and prepares material pond, pre-sintering area, calcination district and cooling space, the preparation pond top is equipped with the stoving feed bin of vertical setting, be equipped with the feed opening between stoving feed bin and the preparation pond, the cooling space rear is equipped with the discharge gate, the chain bar is carried mineral aggregate from the pond of prepareeing material, pre-sintering area, calcination district, cooling space to the discharge gate in proper order.
As an improvement, power devices are arranged at positions, close to the material preparation pool and the material outlet, of the chain row, a load roller for supporting the chain row is arranged on the chain row, and a support for supporting the roller is arranged below the roller.
As an improvement, the power device is an electric motor and a speed reducer matched with the electric motor.
As an improvement, the roasting area adopts gas roasting and self-ignition heating of raw materials.
As an improvement, a ventilation opening is arranged below the side part of the roasting area, a temperature measuring point is arranged on the inner wall of the roasting area, a heat extraction air pipe is arranged at the top of the roasting area, an exhaust fan is arranged at the top of the kiln body, and hot air is extracted from the heat extraction air pipe by the exhaust fan and conveyed into a drying bin.
As an improvement, a waste heat utilization pipe is arranged at the top in the kiln body, water is filled in the waste heat utilization pipe, and the waste heat in the roasting area is utilized for heating and is conveyed to the outside of the kiln body through a cooling area and a discharge hole.
As an improvement, a material baffle is arranged at the discharge port.
As the improvement, stoving feed bin upper portion is equipped with the feed inlet, stoving feed bin top is equipped with smoke and dust processing apparatus.
The utility model has the advantages that:
the utility model discloses a chain bar formula transmission system replaces track kiln car to accomplish the transport of mineral aggregate in the tunnel cave, need not the position of kiln car in the dispatch kiln, can circulate reciprocal carry out incessant circulation to the mineral aggregate and carry, improves conveying efficiency and production efficiency by a wide margin. After a kiln car is cancelled, the size of the section in the tunnel kiln can be reduced or other roasting equipment can be added, so that the construction investment of the tunnel kiln can be greatly saved. The utility model discloses an each workspace configuration of tunnel cave is reasonable, can coordinate each link of baking, and the make full use of waste heat improves the calcination effect, simplifies production processes, has good market spreading value.
Drawings
FIG. 1 is a block diagram of a chain grate type vanadium ore roasting tunnel kiln in example 1;
FIG. 2 is a structural view of a chain grate type vanadium ore roasting tunnel kiln in example 2;
FIG. 3 is a sectional view of a firing zone of the chain grate type vanadium ore firing tunnel kiln in example 2.
The figures are labeled as follows:
1-kiln body, 11-material preparation pool, 12-pre-burning area, 13-roasting area, 131-ventilation opening, 132-temperature measuring point, 133-heat extraction air pipe, 134-waste heat utilization pipe, 14-cooling area, 15-drying bin, 151-feeding opening, 16-blanking opening, 17-discharging opening, 171-baffle plate, 2-chain row, 21-power device, 22-roller, 23-bracket, 3-exhaust fan, 4-smoke dust processing device and 5-air inlet.
Detailed Description
The present invention will be described in detail and specifically with reference to the following examples so as to provide a better understanding of the present invention, but the following examples do not limit the scope of the present invention.
Example 1
The embodiment discloses a chain bar type vanadium ore roasting tunnel kiln, which comprises a tunnel kiln body 1, a chain bar 2 for conveying mineral aggregate in the kiln body 1 and a roasting device for roasting the mineral aggregate, wherein the kiln body 1 sequentially comprises a material preparation pool 11, a pre-burning area 12, a roasting area 13 and a cooling area 14 from front to back, the top of the material preparation pool 11 is provided with a vertically arranged drying bin 15, a blanking port 16 is arranged between the drying bin 15 and the material preparation pool 11, a discharge port 17 is arranged behind the cooling area 14, and the chain bar 2 sequentially conveys the mineral aggregate from the material preparation pool 11 to the discharge port 17 through the pre-burning area 12, the roasting area 13 and the cooling area 14.
The chain row 2 is provided with a power device 21 near the material preparing pool 11 and the material outlet 17, a load roller 22 for supporting the chain row 2 is arranged on the chain row 2, and a bracket 23 for supporting the roller 22 is arranged below the roller 22. In this embodiment, the power unit 21 is a motor and a speed reducer associated with the motor.
The roasting device is a natural gas roasting device and is arranged in the roasting area 13.
In this example, the height of the lower side of the chain row 2 was 700mm, the length of the burn-in area 12 was 12000mm, the length of the baking area 13 was 60000mm, and the length of the cooling area was 12000 mm.
In the use process of the embodiment, the vanadium ore is pressed into small mineral aggregate balls in advance, then the small mineral aggregate balls are placed into the drying bin 15, and the small mineral aggregate balls enter the chain row 2 in the material preparation pool 11 through the feed opening 16. As shown in fig. 1, the power device 21 drives the chain row 2 to rotate clockwise, and the small balls loaded with mineral aggregate at the upper part of the chain row 2 pass through the pre-sintering zone 12, the roasting zone 13 and the cooling zone 14 in sequence and then are discharged through the discharge port 17. In the roasting process, the opening and closing of the power device 21 and the rotating speed are adjusted to coordinate the time of the small mineral aggregate balls in the pre-sintering area 12, the roasting area 13 and the cooling area 14, and the temperature in the kiln is adjusted through the air supply and the coal gas supply.
The utility model discloses can reduce the investment of tunnel cave, coordinate individual link, the make full use of waste heat of baking by a wide margin, improve the calcination effect, simplify production processes.
Example 2
In this embodiment, on the basis of embodiment 1, a ventilation opening 131 is provided at a position below the side of the roasting region 13, a temperature measuring point 132 is provided on the inner wall of the roasting region 13, and a heat extraction air pipe 133 and a waste heat utilization pipe 134 are provided at the top. The top of the kiln body 1 is provided with an exhaust fan 3, and the exhaust fan 3 extracts hot air from the hot air extraction pipe 133 and conveys the hot air into the drying bin 15. The residual heat utilization pipe 134 extends towards the discharge port 17, and converts the residual heat in the roasting region 13 into heat energy of water in the pipe through the cooling region 14 and the discharge port 17 and transmits the heat energy to the outside of the kiln body 1.
In this embodiment, the top of the drying bin 15 is provided with the smoke treatment device 4, and the side thereof is provided with the feeding port 151. A material baffle 171 is arranged outside the discharge hole 17. The smoke dust treatment device 4 is a spray tower, and the absorbed acid or salt is used as a production raw material again.
The roasting device is a coal gas roasting device, the part arranged in the roasting area 13 is an air-adding port 5 for adding coal gas into the roasting area 13, and the roasting area 13 is heated by adopting a coal gas roasting and raw material spontaneous combustion mode.
The other structure of this embodiment is the same as embodiment 1. The embodiment can fully utilize the heat generated by the roasting area 13, and the residual heat at the roasting area 13 is used for drying mineral aggregate or converting the mineral aggregate into hot water. The embodiment can greatly improve the heat utilization efficiency of the roasting region 13, and the top of the drying bin 15 is provided with the smoke dust treatment device 4, so that the energy-saving and environment-friendly effects are achieved.
In the embodiment, the coal gas and the natural gas generated by the external gas producer can be used for providing fuel for the roasting area 13, and the coal gangue vanadium ore can be roasted in a self-combustion mode and supplemented with other energy sources, so that the special decarbonization link in production is reduced, the consumption is reduced, and the efficiency is improved.
The present invention has been described in detail with reference to the specific embodiments thereof, which are provided by way of example only, and the present invention is not limited to the specific embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Therefore, the equivalent changes and modifications without departing from the spirit and scope of the present invention should be covered by the scope of the present invention.
Claims (8)
1. The utility model provides a chain bar formula navy furnace is baked in ore deposit baking, its characterized in that, including the tunnel kiln body, transport the chain bar of ore deposit and the calcination device of calcination ore deposit at the internal kiln, the kiln body includes in proper order from the past backward and prepares material pond, presintering area, baking area and cooling space, the stoving feed bin that prepares material pond top was equipped with vertical setting, be equipped with the feed opening between stoving feed bin and the pond of prepareeing material, the cooling space rear is equipped with the discharge gate, the chain bar is carried the ore deposit to the discharge gate from pond, presintering area, baking area, cooling space of prepareeing material in proper order.
2. The chain grate type vanadium ore roasting tunnel kiln as claimed in claim 1, wherein the chain grate is provided with a power device near the material preparation tank and the material outlet, the chain grate is provided with a load roller for supporting the chain grate, and a bracket for supporting the roller is arranged below the roller.
3. The chain grate type vanadium ore roasting tunnel kiln according to claim 2, wherein the power device is an electric motor and a speed reducer matched with the electric motor.
4. The chain grate type vanadium ore roasting tunnel kiln according to claim 1, wherein the roasting zone is roasted by gas and heated by spontaneous combustion of raw materials.
5. The chain grate type vanadium ore roasting tunnel kiln as claimed in claim 1, wherein a vent is arranged below the side part of the roasting region, a temperature measuring point is arranged on the inner wall of the roasting region, a heat extraction air pipe is arranged on the top of the roasting region, and an exhaust fan is arranged on the top of the kiln body and used for extracting hot air from the heat extraction air pipe and conveying the hot air into the drying bin.
6. The chain-grate vanadium ore roasting tunnel kiln as claimed in claim 1, wherein a waste heat utilization pipe is arranged at the top inside the kiln body, water is filled in the waste heat utilization pipe, and the waste heat utilization pipe is heated by waste heat in the roasting zone and is conveyed to the outside of the kiln body through the cooling zone and the discharge hole.
7. The chain grate type vanadium ore roasting tunnel kiln according to claim 1, wherein a material baffle is arranged at the discharge port.
8. The chain grate type vanadium ore roasting tunnel kiln according to claim 1, wherein a feed inlet is arranged at the upper part of the drying bin, and a smoke dust treatment device is arranged at the top of the drying bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021296793.3U CN212274604U (en) | 2020-07-06 | 2020-07-06 | Chain row type vanadium ore roasting tunnel kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021296793.3U CN212274604U (en) | 2020-07-06 | 2020-07-06 | Chain row type vanadium ore roasting tunnel kiln |
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| CN212274604U true CN212274604U (en) | 2021-01-01 |
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| CN202021296793.3U Active CN212274604U (en) | 2020-07-06 | 2020-07-06 | Chain row type vanadium ore roasting tunnel kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405359A (en) * | 2021-06-23 | 2021-09-17 | 陕西卓越材料科技有限公司 | Continuous roasting and carbon removal process for material containing precious metals |
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2020
- 2020-07-06 CN CN202021296793.3U patent/CN212274604U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405359A (en) * | 2021-06-23 | 2021-09-17 | 陕西卓越材料科技有限公司 | Continuous roasting and carbon removal process for material containing precious metals |
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