CN219580386U - Novel carbide slag slurry preparation system - Google Patents
Novel carbide slag slurry preparation system Download PDFInfo
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- CN219580386U CN219580386U CN202320563004.5U CN202320563004U CN219580386U CN 219580386 U CN219580386 U CN 219580386U CN 202320563004 U CN202320563004 U CN 202320563004U CN 219580386 U CN219580386 U CN 219580386U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a novel preparation system of carbide slag slurry, which can efficiently prepare the carbide slag slurry, stabilize slurry mixing indexes, lay a foundation for optimizing technical indexes in the next working procedure, fully utilize the carbide slag, reduce solid waste material discharge and realize resource recycling; the dealkalization reaction of the red mud is strengthened, the dealkalization effect is increased, the dealkalization cost is reduced to the maximum extent, the dealkalization reaction has great significance for the alkali consumption reduction of the alumina production process by the Bayer process, the use channel of the dealkalized low-alkali red mud is wider, the comprehensive utilization rate of the red mud is improved, and the discharge amount of the red mud is reduced; through the efficient preparation process, dust emission generated in the process of conveying the granular carbide slag is avoided, and environmental pollution is reduced. The novel preparation system of the carbide slag slurry has the advantages of simple flow, less equipment, convenient operation and maintenance, less investment and extremely high economic benefit, and provides a new thought and a new method for efficiently utilizing the carbide slag.
Description
Technical Field
The utility model belongs to the field of metallurgy and chemical industry, and particularly relates to a novel preparation system of carbide slag slurry.
Background
The carbide slag replaces lime to be used for the technical research and application of the alumina production process, and the carbide slag slurry is found to be used as a dealkalizer for carrying out high-efficiency dealkalization in the process, so that not only can the alkali consumption of alumina produced by a Bayer process be reduced, but also the environmental pollution caused by alkali can be reduced, and the method has great economic and social benefits;
the preparation of carbide slag slurry is used as the first procedure of the red mud high-efficiency dealkalization production process, and mainly any qualified carbide slag slurry is prepared and used as the dealkalization process source, and the dealkalization process technical index control is directly related to the influence on the dealkalization cost of the red mud;
the carbide slag slurry preparation system mainly has the technical problems that: firstly, the water content of the granular carbide slag is about 35%, and when the granular carbide slag is conveyed by a belt conveyor, the inner wall of the periphery of a feed opening is blocked; secondly, the granular carbide slag expands in a feed bin of the preparation system, so that the feed bin is jumped and the feed is unstable; thirdly, the carbide slag contains a large amount of large particles with the diameter of 10-400mm and sundries. In the running process, slurry preparation equipment is overloaded, equipment running is affected, and the system running rate can only reach 60.20%; fourthly, most of carbide slag is caked, and the carbide slag cannot be completely digested after the preparation process, so that the process is blocked frequently, the operation efficiency is low, the productivity is only 75% of the design productivity, and the cost of a carbide slag slurry preparation system is up to 30 yuan/t-carbide slag; fifthly, the slag slurry contains partial small particles, so that a conveying pipeline is blocked, a slurry conveying pipe is frequently brushed with water, the solid content of the slurry fluctuates by 50-200 g/l, the technical index of the next process is difficult to control stably, the dealkalization effect is poor, the recovery alkali amount of 1 ton carbide slag is 120kg, and the dealkalization rate is only 64.86%. And sixthly, fine particles in the carbide slag are fast to sink, the carbide slag is easy to sink after entering a slag slurry tank, the cleaning cost is increased, and the continuous operation of the system is influenced.
Disclosure of Invention
In order to overcome the problems in the background technology, the utility model discloses a novel preparation system of carbide slag slurry, which comprises a carbide slag bin, a feed bin, a slurry mixing device, a slag slurry tank and a stirring device, wherein the carbide slag bin is directly fed by a forklift, a grid is arranged at the top of the feed bin, an adjustable speed belt conveyor is arranged at the bottom of the feed bin, a slurry mixing device is arranged at a discharge port of the adjustable speed belt conveyor, a pipeline is arranged in the slurry mixing device for adding hot water, two slag slurry tanks are arranged at an outlet, the stirring device is additionally arranged in the slag slurry tank, a slag removing device is arranged at an overflow port, after the carbide slag and the hot water are mixed according to a certain proportion, the carbide slag and the hot water are subjected to slag slurry separation by the slurry mixing device, the stirring device and the slag removing device, slurry overflows into a storage tank to be delivered to dealkalization by a slag slurry pump, and granular slag is delivered to a slag bin to be stored by an adjustable speed belt conveyor; the technical scheme of the utility model can realize the application of the carbide slag slurry in the process of producing alumina by using the Bayer process, fully utilize the carbide slag and realize the recycling of resources.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the novel preparation system of the carbide slag slurry mainly comprises a carbide slag bin, a forklift, a feed bin, an adjustable speed belt conveyor, a slurry mixing device, a slag slurry tank, a stirring device, a slag removing device, a second grid, a bin wall vibrator, an air cannon, a scraper, a first grid, an arc blade, a stirring device shaft of the slurry mixing device, a motor of the slurry mixing device, a fixed bearing of the slurry mixing device, a slag discharge port of the slurry mixing device, an overflow port of the slurry mixing device, a pipeline, a blade of the stirring device, a motor of the stirring device, an overflow port of the slag slurry tank and a discharge pump, wherein a carbide slag unloading point and the forklift are arranged in the carbide slag bin, the feed bin is arranged at the feeding end of the forklift, the first grid is arranged at the top of the feed bin, a bin wall vibrator is arranged in the middle of the feed bin, the air cannon is arranged at the lower part of the feed bin, the adjustable speed belt conveyor is arranged under the feed bin, the scraper is arranged at the head of the adjustable speed belt conveyor, the machine head of the speed-adjustable belt conveyor is provided with a second grille, a pulp mixing device is arranged below the first grille, an arc blade is arranged in the pulp mixing device, a pulp mixing device stirring shaft is arranged in the pulp mixing device, the pulp mixing device stirring shaft is a double stirring device shaft, a transmission section of the double stirring device shaft is connected with a pulp mixing device motor, the tail end of the double stirring device shaft is provided with a pulp mixing device fixed bearing, the upper part of the transmission end of the pulp mixing device is provided with a slag discharging port, the tail end of the pulp mixing device is provided with a pulp mixing device overflow port, a pipeline is arranged at the pulp mixing device overflow port, the tail end of the pipeline is connected with a pulp groove, a stirring device is arranged in the pulp groove, the tail end of the stirring device is provided with a stirring device blade, the transmission end of the stirring device is connected with a stirring device motor, the tail end of the pulp mixing device overflow port is provided with a slag removing device, the slag removing device is a spiral slag removing device, the deslagging device is connected with the slag belt through a pipe fitting, an overflow port of the slurry mixing device overflows into the storage tank through a pipeline, and is pumped to the dealkalization system through a discharge pump at the bottom of the storage tank.
The inlet of the slurry mixing device is provided with a hot water pipeline, an electromagnetic flowmeter is arranged on the carbide slurry conveying pipe, a liquid level meter is arranged beside the slurry tank, and a liquid level meter is arranged beside the storage tank.
The motor side of the slurry mixing device is provided with an ammeter, the motor side of the stirring device is provided with an ammeter, and the discharging pump side is provided with an ammeter.
The top and the periphery of the carbide slag bin are sealed, and granular carbide slag is piled in the carbide slag bin.
The bin wall vibrator is provided with at least three bins, and the fixed bearing is provided with at least two bins.
The slag slurry tank is internally provided with a stirring device, the slag removing device is arranged at the overflow port of the slag slurry tank, two groups are connected, one group is phi 3 x 2m slag slurry tank with the stirring device, the slag removing device with the length of 5 m is arranged at the overflow port of the tail slag slurry tank, the other group is phi 3 x 3m slag slurry tank with the stirring device, and the slag removing device is arranged at the overflow port of the tail slag slurry tank.
The first grille is 100 x 150 grille, and the second grille is 50 x 100mm grille.
The utility model has the beneficial effects that: the novel preparation system of the carbide slag slurry can be used for efficiently preparing the carbide slag slurry, stabilizing the slurry mixing index, laying a foundation for optimizing the technical index of the next working procedure, fully utilizing the carbide slag, reducing the discharge of solid waste materials and realizing the recycling of resources; the dealkalization reaction of the red mud is strengthened, the dealkalization effect is increased, the dealkalization cost is reduced to the maximum extent, the dealkalization reaction has great significance for the alkali consumption reduction of the alumina production process by the Bayer process, the use channel of the dealkalized low-alkali red mud is wider, the comprehensive utilization rate of the red mud is improved, and the discharge amount of the red mud is reduced; through the efficient preparation process, dust emission generated in the process of conveying the granular carbide slag is avoided, and environmental pollution is reduced. The novel preparation system of the carbide slag slurry has the advantages of simple flow, less equipment, convenient operation and maintenance, less investment and extremely high economic benefit, and provides a new thought and a new method for efficiently utilizing the carbide slag.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure, a 1-carbide slag bin, a 2-forklift, a 3-feeding bin, a 4-adjustable speed belt conveyor, a 5-slurry mixing device, a 6-slag slurry tank, a 7-stirring device, an 8-slag removing device, a 9-first grid, a 10-bin wall vibrator, an 11-air cannon, a 12-scraper, a 13-second grid, a 14-arc blade, a 15-slurry mixing device stirring shaft, a 16-slurry mixing device motor, a 17-slurry mixing device fixed bearing, a 18-slurry mixing device slag discharge port, a 19-slurry mixing device overflow port, a 20-pipeline, a 21-stirring device blade, a 22-stirring device motor, a 23-slag slurry tank overflow port, a 24-storage tank and a 25-discharge pump.
Detailed Description
In order to make the above objects, technical schemes and beneficial effects clearer and more clear, the present utility model is specifically described below with reference to the accompanying drawings.
As shown in figure 1, the novel preparation system of carbide slag slurry mainly comprises a carbide slag bin 1, a forklift 2, a feed bin 3, an adjustable speed belt conveyor 4, a slurry mixing device 5, a slag slurry tank 6, a stirring device 7, a slag removing device 8, a second grille 9, a bin wall vibrator 10, an air cannon 11, a scraper 12, a first grille 13, an arc-shaped blade 14, a stirring device shaft 15 of the slurry mixing device, a slurry mixing device motor 16, a slurry mixing device fixed bearing 17, a slurry mixing device slag discharge port 18, a slurry mixing device overflow port 19, a pipeline 20, a stirring device blade 21, a stirring device motor 22, a slag slurry tank overflow port 23 and a discharge pump 24, wherein the carbide slag bin 1 is internally provided with a carbide slag discharge point and the forklift 2, the feed bin 3 is arranged at the feeding end of the forklift 2, the first grille 13 is arranged at the top of the feed bin 3, the bin wall vibrator 10 is arranged in the middle of the feed bin 3, the air cannon 11 is arranged at the lower part of the feed bin 3, the adjustable speed belt conveyor 4 is arranged right below the feed bin 3, the scraper 12 is arranged at the head of the adjustable speed belt conveyor 4, the second grille 9 is arranged at the head of the adjustable speed belt conveyor 4, the slurry mixing device 5 is arranged below the first grille 13, the arc-shaped blades 14 are arranged in the slurry mixing device 5, the slurry mixing device stirring shaft 15 is arranged in the slurry mixing device 5, the stirring shaft 15 of the slurry mixing device is a double stirring device shaft, the transmission section of the double stirring device shaft is connected with the slurry mixing device motor 16, the tail end of the double stirring device shaft is provided with the slurry mixing device fixed bearing 17, the upper part of the transmission end of the slurry mixing device 5 is provided with a slag outlet, the tail end of the slurry mixing device 5 is provided with a slurry mixing device overflow port 19, the overflow port 19 of the slurry mixing device is provided with a pipeline 20, the tail end of the pipeline 20 is connected with the slurry mixing tank 6, the slurry mixing device 7 is arranged in the slurry mixing device 6, the tail end of the stirring device 7 is provided with the stirring device blades 21, the stirring device is characterized in that a stirring device motor 22 is connected to the driving end of the stirring device 7, a stirring device overflow port 19 is arranged at the tail end of the slurry tank 6, a deslagging device 8 is arranged at the stirring device overflow port 19, the deslagging device 8 is a spiral deslagging device, the deslagging device 8 is connected with a slag belt through a pipe fitting, the stirring device overflow port 19 overflows into a storage tank 24 through a pipe 20, a discharge pump 25 at the bottom of the storage tank 24 is used for delivering to a dealkalization system, a hot water pipe is arranged at the inlet of the stirring device 5, an electromagnetic flowmeter is arranged on the hot water pipe, a carbide slurry conveying pipe is arranged at the top of the carbide slag bin 1, an electromagnetic flowmeter is arranged on the carbide slurry conveying pipe, a liquid level meter is arranged beside the slurry tank 6, a liquid level meter is arranged beside the storage tank 24, a ammeter is arranged beside the stirring device 5 motor, a current meter is arranged beside the stirring device motor 22, a current meter is arranged beside the discharge pump 25, the top and the carbide slag bin 1 is arranged in a closed manner, at least three carbide slag is arranged in the bin wall device 10, a fixing bearing 17 is provided, and at least two grids of 100mm are arranged, and the grid (150 mm) are arranged.
The novel preparation system for the carbide slag slurry comprises a carbide slag bin 1, a feed bin 3, a slurry mixing device 5, a slag slurry tank 6 and a stirring device 7, wherein the carbide slag bin 1 is directly fed by a forklift 2, a first grid 9 is arranged on the top of the feed bin 3, a speed-adjustable belt conveyor 4 is arranged at the bottom of the feed bin 3, a pulp mixing device 5 is arranged at the discharge hole of the speed-adjustable belt conveyor 4, the slurry mixing device 5 is provided with a pipeline for adding hot water, the outlet is provided with two slurry tanks 6, the slurry mixing device 7 is additionally arranged in the slurry tanks 6, the overflow port 19 of the slurry mixing device is provided with a slag removing device 8, and after the carbide slag and the hot water are mixed according to a certain proportion and are subjected to slag-slurry separation through the slurry mixing device 5, the stirring device 7 and the slag removing device 8, the slurry overflows into a storage tank 24 and is conveyed to red mud for dealkalization through a slurry pump, the granular slag is conveyed to a slag bin for storage through a belt conveyor, the first grille 25 is added at the top of the feed bin 3, the forklift 2 is adopted for direct feeding, the belt conveying is cancelled, the blocking problem of a feed opening is completely eradicated, the stacking time of carbide slag in the feed bin is reduced, the phenomenon of bin jumping is avoided, the problem of unstable feeding is solved, the first grille 25 and the second grille 13 are added to carry out large-particle separation technology before entering the pulp mixing device 5, the caking more than 100mm is totally separated, the caking less than 100mm enters the pulp mixing device 5, the pulp adjusting device 5 is subjected to technical upgrading and reconstruction, the effective volume is improved, the processing capacity is increased, after large particles are filtered, reduces the operation load of the slurry mixing device 5, can effectively reduce the failure rate of equipment, improves the operation rate of the equipment, the technical scheme of the utility model can realize the application of the carbide slag slurry in the process of producing alumina by using the Bayer process, fully utilizes the carbide slag, and realizes the recycling of resources, thereby solving the problems in the prior art.
When the novel preparation system of carbide slag slurry is used, the carbide slag of the particles entering a factory is piled up according to the sequential order, the principle of 'first use' is implemented, water is filtered as far as possible, a forklift 2 is adopted to replace a grab crown block and a belt conveyor for feeding, a feed opening is additionally arranged at the feed section of a slurry mixing device 5, an adjustable speed belt conveyor 4 is additionally arranged at the feed opening to be matched with a loader, the uniform feeding at the feed end is realized, 3 bin wall rappers 10 are arranged at the feed opening to assist in feeding, the feeding efficiency of the forklift 2 is improved, a second grid 13 is additionally arranged at the top of the feed opening of the adjustable speed belt conveyor 4, coarse particles with the length of more than 50-100mm are separated, a slurry mixing device stirring shaft 15 is arranged in the slurry mixing device 5, the shaft length is prolonged to 6m from 3m, the blades of the slurry mixing shaft 15 are increased to 144 pieces from 36 pieces, the blades of the stirring shaft 15 are increased to 144 pieces from 36 pieces, the strength of the slurry mixing device stirring shaft 15 is increased by 4 times, the axial length of a stirring shaft 15 of a stirring and mixing device is prolonged from 3 meters to 6 meters, the time of a material stirring device is prolonged by 2 times, 2 slag slurry tanks 6 with stirring devices 7 are added, the contact time of carbide slag and water is further prolonged, after three times of stirring is completed, the carbide slag caking can be completely digested, a phi 150mm pipeline is paved at the inlet section of the stirring device 5, the preparation water is improved for preparing slag slurry, an adjustable valve is arranged on the pipeline, the water quantity is controlled, blades between the stirring shafts 15 of the stirring device are arranged in a crossed manner, a slag discharge port 18 of the stirring device is arranged at the tail end of the cylinder wall of the stirring device 5, the inclination angle of the stirring device 5 is adjusted to 30 degrees, 10-100mm particles are separated by utilizing the height difference, phi 3 x 2m slag slurry tanks 6 with stirring devices 7 are arranged at the overflow port 19 end of the stirring device, 1 slag removal device 8 with the length of 5 meters is designed at the overflow port 23 of the slag slurry tank, 2-10mm particles are separated, the slurry overflows into the lower 1 slag slurry tank with stirring device phi 3 x 3m through a discharge hole, the slag removing device 8 is arranged at the overflow hole 23 of the slag slurry tank at the tail end to separate fine particles below 2mm, and finally qualified slurry enters the storage tank 24 phi 6 x 6m and is sent to a dealkalization system through a discharge pump 25.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the utility model, and that, although the utility model has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims.
Claims (7)
1. The novel preparation system of the carbide slag slurry is characterized by mainly comprising a carbide slag bin, a forklift, a feed bin, an adjustable speed belt conveyor, a slurry mixing device, a slag slurry tank, a stirring device, a slag removing device, a second grid, a bin wall vibrator, an air cannon, a scraper, a first grid, an arc blade, a stirring device shaft of the slurry mixing device, a motor of the slurry mixing device, a fixed bearing of the slurry mixing device, a slag discharging port of the slurry mixing device, an overflow port of the slurry mixing device, a pipeline, a stirring device blade, a motor of the stirring device, an overflow port of the slag slurry tank and a discharge pump, wherein the carbide slag discharging point and the forklift are arranged in the carbide slag bin, the feed bin is arranged at the feeding end of the forklift, the first grid is arranged at the top of the feed bin, the bin wall vibrator is arranged in the middle of the feed bin, the air cannon is arranged at the lower part of the feed bin, the adjustable speed belt conveyor is arranged under the feed bin, the scraper is arranged at the head of the speed-adjustable belt conveyor, the second grille is arranged at the head of the speed-adjustable belt conveyor, the slurry mixing device is arranged below the first grille, the arc-shaped blade is arranged in the slurry mixing device, the slurry mixing device stirring shaft is a double stirring device shaft, the transmission section of the double stirring device shaft is connected with a slurry mixing device motor, the tail end of the double stirring device shaft is provided with a slurry mixing device fixed bearing, the upper part of the transmission end of the slurry mixing device is provided with a slag discharging port, the tail end of the slurry mixing device is provided with a slurry mixing device overflow port, the slurry mixing device overflow port is provided with a pipeline, the tail end of the pipeline is connected with a slurry mixing tank, the slurry mixing device is provided with a stirring device blade, the transmission end of the stirring device is connected with the stirring device motor, the tail end of the slurry mixing device overflow port is provided with a slag removing device, the deslagging device is a spiral deslagging device, the deslagging device is connected with the slag belt through a pipe fitting, an overflow port of the slurry mixing device overflows into the storage tank through a pipeline, and the slurry is pumped to the dealkalization system through a discharge pump at the bottom of the storage tank.
2. The novel carbide slag slurry preparation system as claimed in claim 1, wherein: the inlet of the slurry mixing device is provided with a hot water pipeline, an electromagnetic flowmeter is arranged on the carbide slurry conveying pipe, a liquid level meter is arranged beside the slurry tank, and a liquid level meter is arranged beside the storage tank.
3. The novel carbide slag slurry preparation system as claimed in claim 1, wherein: the motor side of the slurry mixing device is provided with an ammeter, the motor side of the stirring device is provided with an ammeter, and the discharging pump side is provided with an ammeter.
4. The novel carbide slag slurry preparation system as claimed in claim 1, wherein: the top and the periphery of the carbide slag bin are sealed, and granular carbide slag is piled in the carbide slag bin.
5. The novel carbide slag slurry preparation system as claimed in claim 1, wherein: the bin wall vibrator is provided with at least three bins, and the fixed bearing is provided with at least two bins.
6. The novel carbide slag slurry preparation system as claimed in claim 1, wherein: the slag slurry tank is internally provided with a stirring device, the slag removing device is arranged at the overflow port of the slag slurry tank, two groups are connected, one group is phi 3 x 2m slag slurry tank with the stirring device, the slag removing device with the length of 5 m is arranged at the overflow port of the tail slag slurry tank, the other group is phi 3 x 3m slag slurry tank with the stirring device, and the slag removing device is arranged at the overflow port of the tail slag slurry tank.
7. The novel carbide slag slurry preparation system as claimed in claim 1, wherein: the first grille is 100 x 150 grille, and the second grille is 50 x 100mm grille.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320563004.5U CN219580386U (en) | 2023-03-21 | 2023-03-21 | Novel carbide slag slurry preparation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320563004.5U CN219580386U (en) | 2023-03-21 | 2023-03-21 | Novel carbide slag slurry preparation system |
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| Publication Number | Publication Date |
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| CN219580386U true CN219580386U (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320563004.5U Active CN219580386U (en) | 2023-03-21 | 2023-03-21 | Novel carbide slag slurry preparation system |
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| CN (1) | CN219580386U (en) |
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2023
- 2023-03-21 CN CN202320563004.5U patent/CN219580386U/en active Active
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