CN212431737U - Quick processing apparatus of annex of magnesium alloy melting crucible - Google Patents

Quick processing apparatus of annex of magnesium alloy melting crucible Download PDF

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Publication number
CN212431737U
CN212431737U CN202021079540.0U CN202021079540U CN212431737U CN 212431737 U CN212431737 U CN 212431737U CN 202021079540 U CN202021079540 U CN 202021079540U CN 212431737 U CN212431737 U CN 212431737U
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China
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crucible
water
filter press
magnesium alloy
frame filter
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Expired - Fee Related
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CN202021079540.0U
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Chinese (zh)
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任玉波
董帅
董杰
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Luoyang Institute Of Special Materials
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Luoyang Institute Of Special Materials
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Abstract

A device for quickly treating attachments in a magnesium alloy smelting crucible comprises a crucible to be cleaned, a water purification tank, a sedimentation tank, a plate-and-frame filter press, a high-pressure cleaning assembly, a slurry transfer assembly and a slurry-slag supply assembly. The device is through improving and optimizing traditional water soaking + manual cleaning's method, supplementary high-pressure squirt and auxiliary machinery means such as plate and frame filter press, can be fast, high-efficient, the clearance of the inner wall attachment of realization magnesium alloy smelting back crucible of environmental protection, and work efficiency is high, and the water consumption is few, artifical low in labor strength, and the treatment cycle is short, and simultaneously, waste water and mud sediment still can repeat recycle, and practicality and feature of environmental protection are better.

Description

Quick processing apparatus of annex of magnesium alloy melting crucible
Technical Field
The utility model belongs to the technical field of non ferrous metal processing, especially, relate to a be applied to quick processing apparatus who contains magnesium metal and refining agent thick liquids after quick clearance and the clearance of high performance magnesium alloy smelting with crucible inner wall attachment.
Background
At present, the method for cleaning the attachments on the inner wall of the crucible furnace for smelting magnesium alloy and the method for treating the magnesium-containing metal and the refining agent slurry generated after the cleaning in the prior art are described as follows: after the magnesium alloy is smelted in the crucible, a large amount of salt substances are attached to the inner wall of the crucible, so that the reuse of the crucible is influenced. During the treatment, the crucible is required to be soaked by water at a certain temperature (the soaking time is generally between 24h and 48 h). After the crucible is soaked for a long time, the waste impurity inner wall attachments containing the refining agent and the covering agent in the crucible react with water, are dissolved into slurry and then are pumped out by a pump, and then the inner wall of the crucible is manually cleaned for many times by using clean water, so that the requirement of secondary smelting can be met.
The method for treating the attachments on the inner wall of the crucible for smelting the magnesium alloy mainly has the following defects: 1. the crucible needs to be soaked for a long time, the treatment period is long, the working efficiency is low, and the utilization rate of the crucible is low; 2. in the process of manually cleaning the inner wall of the crucible for many times, a large amount of water is consumed for scrubbing the inner wall, and the wastewater is continuously discharged, so that the water consumption is high, the manual workload is high, the labor intensity is high, and the working efficiency is low; 3. a large amount of waste water generated by cleaning occupies a large space for storage, and after the waste water is evaporated for a long time, residual sludge is bagged and then is treated in a centralized manner. The treatment period is long, the consumed time is more, water cannot be effectively recycled in the process, and the occupied area is large; 4. because the content of magnesium alloy in the cleaning wastewater is less, intensive recovery treatment cannot be carried out, and therefore, the condition of scattered stacking is prominent, the working environment is poor, and the environmental protection is low.
Therefore, how to reasonably improve the existing crucible cleaning equipment and method to enable the crucible cleaning equipment and method to quickly, environmentally and effectively treat the attached dirt in the crucible and utilize the waste is a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The technical purpose of the utility model is that: the utility model provides a magnesium alloy smelts interior annex quick processing apparatus of crucible, its realization magnesium alloy that can be quick, high-efficient, environmental protection smelt the clearance of back crucible inner wall annex, and work efficiency is high, and the water consumption is few, and artifical low in labor strength, processing cycle is short, and simultaneously, waste water and mud sediment still can reuse, and practicality and feature of environmental protection are better.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: a device for quickly treating attachments in a magnesium alloy smelting crucible comprises a crucible to be cleaned, a clean water reservoir, a sedimentation tank, a plate-and-frame filter press, a high-pressure cleaning assembly, a slurry transfer assembly and a slurry residue supply assembly, wherein the high-pressure cleaning assembly comprises a driving motor I, a booster pump and a high-pressure spray gun, a water inlet pipe and a water outlet pipe are respectively connected to the inlet and the outlet of the booster pump, the tail end of the water inlet pipe extends into the clean water reservoir, the tail end of the water outlet pipe is connected with the high-pressure spray gun, so that the booster pump can take water from the clean water reservoir through the water inlet pipe under the driving of the driving motor I, and the high-pressure spray cleaning of the;
the slurry transfer assembly is arranged between the crucible to be cleaned and the sedimentation tank and comprises a driving motor II, a material conveying pump and a material conveying pipeline connected to the material conveying pump, and the material conveying pump is driven by the driving motor II to transfer the slurry and the wastewater cleaned in the crucible to be cleaned into the sedimentation tank through the material conveying pipeline;
the thick liquid sediment supply assembly set up between sedimentation tank and plate and frame filter press, including driving motor III, charge pump and connect inlet pipe and the discharging pipe at charge pump inlet outlet department, the end of inlet pipe gos deep into the bottom of sedimentation tank, the end of discharging pipe and plate and frame filter press's access connection, plate and frame filter press's export is passed through the return water pipeline and is connected with sedimentation tank and/or clean water reservoir.
Preferably, a material inlet valve and a pressure gauge are arranged on a material outlet pipe of the material inlet pump.
Preferably, a water return valve and a pressure gauge are arranged on a water return pipeline of the plate-and-frame filter press.
Preferably, one side of the plate and frame filter press is provided with a hydraulic station for providing driving force for the plate and frame filter press.
Has the advantages that:
1. the utility model discloses a magnesium alloy smelts interior annex quick processing apparatus of crucible, simple structure, the operation is swift, convenient, through the device's application, can improve the cleaning efficiency and the cleanliness of crucible inner wall by a wide margin, reduces artifical intensity of labour and water consumption. The unit time treatment capacity of the sludge is improved, the consumption of water resources is reduced, and the sludge is promoted to be recycled. The utility model discloses a device is put into production and is used the back, and the utilization ratio of equipment water can reach more than 90%, and the treatment investment of crucible inner wall attachment descends by a wide margin, and the practical function is better, and feature of environmental protection and security are all higher.
2. The utility model discloses a processing apparatus compares with traditional full manual work clearance, and cleaning efficiency promotes by a wide margin, and crucible soak time can be practiced thrift greatly, and the cleanliness of crucible promotes by a wide margin, has not only improved the effective utilization ratio of crucible, still provides good frock guarantee for the production of high-quality magnesium alloy product.
3. The utility model discloses a processing apparatus carries out centralized processing to the waste water and the waste liquid that the whole flow produced, water after the filter press purifies can get into and smelt the system in and circulate used repeatedly, make water cyclic utilization reach more than 90%, mud is used for preparing cement, products such as fertilizer, whole processing, the transportation can not produce secondary pollution such as dust, the treatment effeciency that contains mud waste water has greatly been promoted, and the comprehensive utilization rate of its waste mud, the influence of the indiscriminate tradition mode of dealing with the environment has been reduced, the environmental security is good.
Drawings
FIG. 1 is a schematic structural view of a treatment apparatus according to the present invention;
reference numerals: 1. driving motor I, 2, the booster pump, 3, the outlet pipe, 4, high-pressure spray gun, 5, the return valve, 6, the conveying pump, 7, driving motor II, 8, the return water pipeline, 9, the feed valve, 10, the manometer, 11, driving motor III, 12, the filter press, 13, the hydraulic pressure station, 14, the inlet tube, 15, the clean water reservoir, 16, treat the clearance crucible, 17, the conveying pipeline, 18, the sedimentation tank, 19, the inlet pipe, 20 charge pump, 21, the discharging pipe.
Detailed Description
The technical solution of the present invention will be further explained and explained in detail with reference to the accompanying drawings and specific embodiments.
A fast treatment device for attachments in a magnesium alloy smelting crucible comprises a crucible 16 to be cleaned, a clean water reservoir 15, a sedimentation tank 18, a plate-and-frame filter press 12, a high-pressure cleaning assembly, a slurry transfer assembly and a slurry residue supply assembly, wherein the high-pressure cleaning assembly comprises a driving motor I1, a booster pump 2 and a high-pressure spray gun 4, a water inlet pipe 14 and a water outlet pipe 3 are respectively connected to the inlet and outlet of the booster pump 2, the tail end of the water inlet pipe 14 extends into the clean water reservoir 15, the tail end of the water outlet pipe 3 is connected with the high-pressure spray gun 4, so that the booster pump 2 can take water from the clean water reservoir 15 through the water inlet pipe 14 under the driving of the driving motor I1, and carry out high-pressure spray cleaning on the attachments on the inner wall;
the slurry transfer assembly is arranged between the crucible 16 to be cleaned and the sedimentation tank 18 and comprises a driving motor II 7, a material conveying pump 6 and a material conveying pipeline 17 connected to the material conveying pump 6, and the material conveying pump 6 is driven by the driving motor II 7 to transfer the slurry and the wastewater cleaned in the crucible 16 to be cleaned into the sedimentation tank 18 through the material conveying pipeline 17;
slurry and slag supply assembly set up between sedimentation tank 18 and plate and frame filter press 12, including driving motor III 11, charge pump 20 and connect inlet pipe 19 and discharging pipe 21 at the inlet outlet of charge pump 20, the end of inlet pipe 19 gos deep into the bottom of sedimentation tank 18, the end of discharging pipe 21 and the access connection of plate and frame filter press 12 are equipped with feed valve 9 and manometer 10 on the discharging pipe 21, are provided with the hydraulic pressure station 13 that provides drive power for it in one side of plate and frame filter press 12, the export of plate and frame filter press 12 is passed through return water pipeline 8 and is connected with sedimentation tank 18 and/or clean water reservoir 15, is equipped with return water valve 5 and manometer 10 on the return water pipeline 8.
A method for quickly treating an attachment in a magnesium alloy smelting crucible comprises the following steps:
step one, controlling the temperature of the crucible 16 to be cleaned after magnesium alloy smelting to be reduced to 400 ℃ within 8-12h, soaking the crucible 16 to be cleaned with water for 18-20h, then starting a driving motor II 7, and transferring the material in the crucible 16 to be cleaned into a sedimentation tank 18 by using a material conveying pump 6;
step two, starting a driving motor I1, adopting a booster pump 2 and a high-pressure spray gun 4 of 200kg to take water from a clean water tank 15, carrying out high-pressure spray washing on the inner wall of a crucible 16 to be cleaned for 15-30min, then starting a driving motor II 7, and adopting a material delivery pump 6 to transfer the material in the crucible 16 to be cleaned into a sedimentation tank 18;
step three, checking the inner wall of the crucible 16 to be cleaned, then drying the inner wall and brushing the coating, and after the inner wall is completely dried, smelting the magnesium alloy again for use in the crucible 16 to be cleaned;
and step four, starting a driving motor III 11 and a plate-and-frame filter press 12, conveying the materials in the sedimentation tank 18 to the plate-and-frame filter press 12 by using a feeding pump 20, conveying the filter-pressed clear water to the sedimentation tank 18 and/or a clear water tank 15 through a return water pipeline 8 for recycling, stacking and airing the filter-pressed slag materials, and recycling the slag materials for production of cement and fertilizer.
The utility model discloses a processing method and the adopted basic principle who establishes other do:
i, basic principle and process of cleaning method
After the magnesium alloy is smelted (namely no metal melt or a small amount of residue exists in the crucible), when the temperature of the crucible is reduced to 400 ℃ (generally 8h-12 h), tap water (water quality and the like are not required) is injected into the crucible for soaking (the soaking time t =18-20 h), after the soaking is finished, a slurry containing metal and refining agent in the crucible is pumped out to a sedimentation tank by using a submerged delivery pump (the lift and the flow meet the discharge requirement), the inner wall of the crucible is quickly cleaned by using a high-pressure spray gun with the water pressure of more than 200kg (generally 200kg-500 kg) and the waste water generated after the cleaning is discharged into the sedimentation tank, the high-pressure spray gun is generally used for about 15-30min for cleaning, after the cleaning is finished, the crucible is baked on the inner wall, the paint can be normally put into use after being brushed with the paint, (the wastewater in the whole cleaning process all enters the sedimentation tank). The mud-containing wastewater flowing into the sedimentation tank is subjected to a subsequent sludge treatment process.
II, quick and efficient sludge treatment method
The waste water in the sedimentation tank mainly becomes substances such as metal magnesium and a small amount of sodium salt. The sludge content of the wastewater is high, so a simple and efficient plate and frame filter press (the area of the filter press is selected according to the wastewater treatment capacity) is adopted to treat the wastewater in the treatment process. Clear water after filter pressing can enter a circulating system of casting water for supplementing circulating water; the sludge blocks after filter pressing are stacked and naturally aired, and the aired sludge blocks can be bagged to be applied to production of cement, fertilizer and the like, and secondary pollution such as dust and the like can not be generated in the transportation process, so that the treatment efficiency of the sludge-containing wastewater is greatly improved, and the water utilization efficiency is improved.
III, description of device adopted for quickly cleaning inner wall of crucible and quickly disposing sludge
The equipment such as a high-pressure spray gun, a motor, a pump, a pipeline and the like are all commercially available products, and the plate-and-frame filter press is only realized by the equipment which is used for treating sludge-containing wastewater or filter pressing anode sludge in copper smelting on the market, has no other special requirements, and is not detailed here.
The method for quickly cleaning the inner wall of the crucible and the matched process of the matched device are as follows: cooling the crucible (T = 300-.
The quick treatment method for the sludge wastewater surrounding the crucible cleaning and the matched flow of assembly are as follows: waste water in the sedimentation tank → a plate and frame filter press (all filter presses in other forms) → water after filter pressing enters a water circulating system for casting to be used → waste mud is dried and bagged → is used for fertilizer and other fields.
The utility model discloses an interior annex rapid processing apparatus of crucible is smelted to magnesium alloy, cooperation processing method provides high-efficient, quick, the method that water resource utilization is high, better solution magnesium alloy smelt the soak time that the crucible inner wall clearance in-process easily appears long, the clearance water consumption is big, sludge treatment volume is big, the clearance is unclean, cleaning efficiency is low, the unable abundant recycle of clearance water and waste water treatment difficulty, artifical intensity of labour is big, the low scheduling problem of work efficiency. By utilizing the method and the matched device, the cleaning efficiency and the cleanliness of the inner wall of the crucible can be effectively improved, the labor intensity and the water consumption are reduced, the sludge treatment efficiency is accelerated, the magnesium alloy smelting production efficiency can be improved, and a foundation is laid for the production of high-quality magnesium alloy products.
High-pressure spray gun system has been introduced in the secondary clearance after the crucible inner wall soaks, and plate and frame filter press system has been introduced to the mud wastewater treatment in-process, and the implantation of two sets of core devices has replaced traditional artifical clearance mode, and cleaning efficiency improves 50%, and the hydrologic cycle rate of utilization reaches more than 90%. Through the improvement of the system, the crucible of the magnesium alloy smelting furnace can be efficiently and quickly cleaned, the difficult problem of small-scale magnesium alloy smelting and casting industry is solved, and the adverse influence of the industry on the environment is reduced.
Example 1:
take the cleaning of the inner wall of the crucible for the smelting furnace for producing the VW63 rare earth magnesium alloy product after the AZ31B magnesium alloy is produced as an example.
The AZ31B magnesium alloy product contains more aluminum elements, and the VW63 magnesium alloy needs to strictly control the content of the aluminum elements, so that the requirement on the cleanliness of the inner wall of the crucible is extremely high, and the specific cleaning process is as follows:
firstly, according to a normal crucible treatment mode after AZ31B magnesium alloy smelting is completed, cleaning residual molten metal in a crucible as far as possible, cutting off power and cooling after cleaning is completed, injecting water into the crucible to produce circulating water after the temperature in the crucible is reduced to 400 ℃, and soaking the crucible for 18h by using the circulating water (the produced circulating water overflows with a large amount of water vapor after being injected and needs to be extracted by using an exhaust system). Secondly, the soaked crucible is pumped out to a sedimentation tank by a material delivery pump, then the inner wall is cleaned secondarily by an ultrahigh pressure spray gun (necessary safety protection measures and matching devices are needed in the cleaning process), the cleaning time is about 30min, and the cleaned wastewater is pumped out to the sedimentation tank. Thirdly, the cleaned crucible is dried (moisture is dried) by using a baking system after being checked, the inner wall of the crucible is coated with a protective coating after being dried, and the crucible can be put into normal production after being coated. Finally, the waste water pumped out to the sedimentation tank is utilized by 20m3H plate-frame filter press pairTreating the wastewater, injecting the treated clear water into a production circulating water pool for recycling, airing the massive sludge, and bagging for sale. The wastewater generated in the whole process enters the sedimentation tank, is recycled after filter pressing, and is not discharged in the whole process.
In the above embodiment:
the high-pressure spray gun is arranged in the powerful cleaning process of the inner wall of the crucible, and the core of the high-pressure spray gun comprises a booster pump, a water gun and a safety control system.
The plate-and-frame filter press is configured in the wastewater treatment process, and the core principle of the plate-and-frame filter press is that a hydraulic system generates pressure and then extrudes sludge to shunt the sludge-containing wastewater in the filter cloth.
Finally, it should be noted that: while the present invention has been described with reference to the foregoing 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 spirit and scope of the invention as defined by the appended claims. All changes, modifications, equivalents and the like which come within the spirit of the invention are intended to be embraced therein.

Claims (4)

1. A device for quickly treating attachments in a magnesium alloy smelting crucible is characterized in that: the device comprises a crucible (16) to be cleaned, a water purification tank (15), a sedimentation tank (18), a plate-and-frame filter press (12), a high-pressure cleaning assembly, a slurry transfer assembly and a slurry residue supply assembly, wherein the high-pressure cleaning assembly comprises a driving motor I (1), a booster pump (2) and a high-pressure spray gun (4), a water inlet pipe (14) and a water outlet pipe (3) are respectively connected to the inlet and outlet of the booster pump (2), the tail end of the water inlet pipe (14) extends into the water purification tank (15), the tail end of the water outlet pipe (3) is connected with the high-pressure spray gun (4), so that the booster pump (2) can take water from the water purification tank (15) through the water inlet pipe (14) under the driving of the driving motor I (1), and perform high-pressure spray cleaning on inner wall attachments on the crucible (16) to;
the slurry transfer assembly is arranged between the crucible (16) to be cleaned and the sedimentation tank (18), and comprises a driving motor II (7), a material conveying pump (6) and a material conveying pipeline (17) connected to the material conveying pump (6), wherein the material conveying pump (6) is driven by the driving motor II (7) to transfer the slurry and the wastewater cleaned in the crucible (16) to be cleaned into the sedimentation tank (18) through the material conveying pipeline (17);
the slurry and slag supply assembly is arranged between the sedimentation tank (18) and the plate and frame filter press (12), and comprises a driving motor III (11), a feeding pump (20), and a feeding pipe (19) and a discharging pipe (21) which are connected to the inlet and the outlet of the feeding pump (20), wherein the tail end of the feeding pipe (19) extends into the bottom of the sedimentation tank (18), the tail end of the discharging pipe (21) is connected with the inlet of the plate and frame filter press (12), and the outlet of the plate and frame filter press (12) is connected with the sedimentation tank (18) and/or a water purification tank (15) through a water return pipeline (8).
2. The device for rapidly processing the attachments in the magnesium alloy smelting crucible as claimed in claim 1, wherein: and a feed valve (9) and a pressure gauge (10) are arranged on a discharge pipe (21) of the feed pump (20).
3. The device for rapidly processing the attachments in the magnesium alloy smelting crucible as claimed in claim 1, wherein: and a water return valve (5) and a pressure gauge (10) are arranged on a water return pipeline (8) of the plate-and-frame filter press (12).
4. The device for rapidly processing the attachments in the magnesium alloy smelting crucible as claimed in claim 1, wherein: and a hydraulic station (13) for providing driving force for the plate-and-frame filter press (12) is arranged on one side of the plate-and-frame filter press.
CN202021079540.0U 2020-06-12 2020-06-12 Quick processing apparatus of annex of magnesium alloy melting crucible Expired - Fee Related CN212431737U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111536797A (en) * 2020-06-12 2020-08-14 洛阳特种材料研究院 Device and method for quickly treating attachments in magnesium alloy smelting crucible
CN112844603A (en) * 2021-02-03 2021-05-28 高飞强 Roller furnace pot body sintering powder breaking device and breaking method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111536797A (en) * 2020-06-12 2020-08-14 洛阳特种材料研究院 Device and method for quickly treating attachments in magnesium alloy smelting crucible
CN111536797B (en) * 2020-06-12 2024-06-14 洛阳特种材料研究院 Rapid processing device and processing method for appendages of magnesium alloy smelting crucible
CN112844603A (en) * 2021-02-03 2021-05-28 高飞强 Roller furnace pot body sintering powder breaking device and breaking method thereof

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