CN117004821A - Process for producing nickel-chromium alloy by utilizing solid waste dust and pickling mud - Google Patents
Process for producing nickel-chromium alloy by utilizing solid waste dust and pickling mud Download PDFInfo
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- CN117004821A CN117004821A CN202310993987.0A CN202310993987A CN117004821A CN 117004821 A CN117004821 A CN 117004821A CN 202310993987 A CN202310993987 A CN 202310993987A CN 117004821 A CN117004821 A CN 117004821A
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- 238000005554 pickling Methods 0.000 title claims abstract description 49
- 239000000428 dust Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 title claims abstract description 16
- 239000002910 solid waste Substances 0.000 title claims abstract description 16
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 title claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 171
- 238000003756 stirring Methods 0.000 claims abstract description 98
- 239000010802 sludge Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 230000005540 biological transmission Effects 0.000 claims description 51
- 230000007246 mechanism Effects 0.000 claims description 42
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 34
- 229910052802 copper Inorganic materials 0.000 claims description 34
- 239000010949 copper Substances 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 17
- 229910001120 nichrome Inorganic materials 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 17
- 239000000243 solution Substances 0.000 description 11
- 239000010935 stainless steel Substances 0.000 description 11
- 229910001220 stainless steel Inorganic materials 0.000 description 11
- 230000009471 action Effects 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 9
- 239000010881 fly ash Substances 0.000 description 8
- 239000002956 ash Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- -1 hydroxide ions Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000005837 radical ions Chemical class 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/32—Obtaining chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of nickel-chromium alloy production, and discloses a process for producing nickel-chromium alloy by utilizing solid waste dust and pickling sludge, wherein a mixing device comprises a mounting table, the top of the mounting table is fixedly connected with a mixing box, and the mixing box is rotationally connected with a mixing stirring box.
Description
Technical Field
The invention relates to the technical field of nichrome production, in particular to a process for producing nichrome by utilizing solid waste dust and acid washing mud.
Background
Stainless steel is widely applied to industry, daily life and national defense industry, and the stainless steel production capacity in China is large, so that the stainless steel is the first country in the world. But the generated dust in the stainless steel production process is 40-60 Kg/t, the generated quantity is huge, and the stainless steel dust contains nickel, chromium and other metal elements, so that the environment is greatly harmed and polluted; the stainless steel is also pickled in the rolling process of the stainless steel, pickling liquor is neutralized by lime and filtered to generate pickling sludge, and the pickling sludge also contains a large amount of metals such as nickel, chromium, iron and the like, so that the related departments of China already list stainless steel dust and stainless steel pickling sludge as dangerous wastes.
Aiming at the treatment of the dust and the pickling sludge generated in the stainless steel production process, the inventor finds that the dust and the pickling sludge can be utilized to produce the nichrome in actual operation, thereby greatly reducing the pollution of the dust and the pickling sludge to the environment, and simultaneously realizing the recycling of resources, so that the invention provides a process for producing the nichrome by utilizing the solid waste dust and the pickling sludge.
Disclosure of Invention
The invention aims to provide a process for producing nichrome by utilizing solid waste dust and pickling mud, which has the advantages of improving the recycling of resources, reducing the pollution of the dust and the pickling mud to the environment, greatly improving the effect and the efficiency of fully mixing the dust and the pickling mud, and the like, and can utilize the dust and the pickling mud generated in the production of stainless steel to produce nichrome.
The aim of the invention can be achieved by the following technical scheme:
a process for producing nichrome by utilizing solid waste dust and acid washing mud comprises the following steps:
step one, respectively placing pickling sludge and dedusting ash into a mixing box and a mixing stirring box in a mixing device;
step two, fully and uniformly mixing pickling mud and dust by matching a stirring feeding mechanism and a discharging heat conduction stirring mechanism on a mixing stirring box to obtain a mixture;
step three, the mixture and the polyvinyl alcohol binder are simultaneously put into a roller granulator for granulation;
step four: and (3) placing the granular mixture dried in the step (III) into a vacuum resistance furnace, carrying out power transmission and heating, keeping the temperature in the vacuum furnace at 950 ℃ and the vacuum degree at 100Pa for vacuum reduction, and when the vacuum degree is less than 15Pa, cooling in a power failure, and discharging after the furnace temperature is reduced to below 100 ℃ to obtain the nickel-chromium alloy.
As a further scheme of the invention: the mixing device comprises an installation table, the top of the installation table is fixedly connected with a mixing box, the mixing box is rotationally connected with a mixing stirring box, a stirring feeding mechanism connected with the mixing box is arranged in the mixing stirring box, a discharging heat conduction stirring mechanism is arranged on the outer surface of the mixing box, and a driving mechanism connected with the mixing box is arranged on the outer surface of the mixing stirring box.
As a further scheme of the invention: stirring feed mechanism includes the mounting bracket with mixing box fixed connection, rotate on the mounting bracket be connected with the drive pipe of mixing box rotation connection, the surface transmission of drive pipe is connected with drive mechanism, the surface fixedly connected with of drive pipe a plurality of discharging pipes, the top of drive pipe rotates the connecting pipe that is connected with mounting bracket fixed connection, the bottom fixedly connected with inlet pipe of connecting pipe, the surface fixedly connected with inlet tube of inlet pipe, be provided with solenoid valve on the inlet tube, the one end fixedly connected with water pump of inlet tube, the output of water pump passes through pipeline fixedly connected with and mount table fixed connection's water tank, the surface fixedly connected with intake pipe of inlet pipe, the one end fixedly connected with and the air pump of water tank fixed connection of intake pipe.
As a further scheme of the invention: the transmission mechanism comprises a first motor fixedly connected with the mounting frame, the output end of the first motor is fixedly connected with a first rotating shaft through a coupler, a first gear is fixedly sleeved on the outer surface of the first rotating shaft, and a second gear fixedly sleeved on the transmission pipe is connected with the outer surface of the first gear in a meshed mode.
As a further scheme of the invention: the discharging heat conduction stirring mechanism comprises a plurality of heat conduction copper pipes which are fixedly connected with the mixing stirring box at a training stage, a sealing block is connected to the inner rotation of the heat conduction copper pipes, a spring fixedly connected with the heat conduction copper pipes is fixedly connected to one side of the sealing block, a stop block is fixedly connected to the inside of the heat conduction copper pipes, and a solid copper ball is fixedly connected to one side of the sealing block through a soft rope.
As a further scheme of the invention: the driving mechanism comprises a second motor fixedly connected with the mixing box, the output end of the second motor is fixedly connected with a second rotating shaft through a coupler, the outer surface of the second rotating shaft is fixedly sleeved with a third gear, and the outer surface of the third gear is in meshed connection with a fourth gear fixedly sleeved with the mixing box.
As a further scheme of the invention: the bottom fixedly connected with transmission shaft of mixing stirring case, the surface fixedly connected with puddler of transmission shaft, the bottom fixedly connected with hob of transmission shaft, the bottom fixedly connected with row material pipe of mixing case, it is provided with electromagnetic valve on the material pipe to arrange.
As a further scheme of the invention: the top of mixing box and mixing stirring case is all fixedly connected with feed hopper, be provided with electromagnetic valve on the feed hopper.
The invention has the beneficial effects that:
(1) Through putting into mixing agitator tank and mixing tank respectively the fly ash, then stir feed mechanism through mixing agitator tank and carry out the feed water and make it mix, and produce a large amount of heat, a large amount of heat is poured into the acid cleaning mud of mixing tank through ejection of compact heat conduction mechanism with the heat, heat pickling mud heats, reduce thermal heat dissipation, simultaneously discharge into the mixing tank through stirring feed mechanism with fly ash mixing amount simultaneously, later stir through ejection of compact heat conduction mechanism and mix, realize going into and out abundant even stirring between fly ash solution and the acid cleaning mud and mix, carry out the heat utilization in the abundant leading-in acid cleaning mud to the heat that produces simultaneously, thereby accelerate reaction efficiency, accelerate the mixing efficiency and the mixing effect between fly ash solution and the acid cleaning mud under the higher environment of temperature simultaneously.
(2) Simultaneously when the raw materials are mixed, the water in the water tank is pumped into the transmission pipe through the water pump, the transmission pipe drives the discharge pipe to rotate, water is sprayed into the mixing and stirring box through the discharge pipe and is flushed along with the mixing and stirring box, then the air supply pressurization is carried out on the mixing and stirring box through the work of the air pump, the water in the mixing and stirring box is flushed in the mixing and stirring box through the spraying of the heat conducting copper pipe, after flushing, the air is continuously pumped into the mixing and stirring box and the mixing and stirring box through the air pump, so that the mixing and stirring box in the mixing device is automatically cleaned and air-dried, manual cleaning is not needed, and the use of a user is facilitated.
(3) The transmission shaft is driven to rotate through the mixing stirring box, the transmission shaft drives the stirring rod to rotate, the materials at the bottom of the mixing box are stirred, meanwhile, the transmission shaft drives the spiral rod to rotate, and the spiral rod drives the mixture at the bottom of the mixing box to be discharged, so that the mixed materials are discharged conveniently, and blockage is prevented when the materials are discharged.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a first perspective view of the external structure of the present invention;
FIG. 2 is a second perspective view of the external structure of the present invention;
FIG. 3 is a perspective view of the internal structure of the present invention;
fig. 4 is a front view of the internal structure of the present invention;
FIG. 5 is an enlarged view of FIG. 1A in accordance with the present invention;
fig. 6 is an enlarged view of B of fig. 4 in accordance with the present invention.
In the figure: 1. a mounting table; 2. a mixing box; 3. a mixing and stirring box; 4. a feed hopper; 11. a mounting frame; 12. a transmission tube; 13. a discharge pipe; 14. a connecting pipe; 15. a feed pipe; 16. a water inlet pipe; 17. a water pump; 18. a water tank; 19. an air inlet pipe; 190. an air pump; 21. a first motor; 22. a first rotating shaft; 23. a first gear; 24. a second gear; 31. a heat conducting copper pipe; 32. a sealing block; 33. a spring; 34. a stop block; 35. solid copper balls; 41. a second motor; 42. a second rotating shaft; 43. a third gear; 44. a fourth gear; 51. a transmission shaft; 52. a stirring rod; 53. a screw rod; 54. and a discharge pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the invention discloses a process for producing nichrome by utilizing solid waste dust and pickling mud, which comprises the following steps:
step one, respectively placing pickling sludge and dedusting ash into a mixing box 2 and a mixing stirring box 3 in a mixing device;
step two, fully and uniformly mixing pickling mud and dust by matching a stirring feeding mechanism and a discharging heat conduction stirring mechanism on a mixing and stirring box 3 to obtain a mixture;
step three, the mixture and the polyvinyl alcohol binder are simultaneously put into a roller granulator for granulation;
step four: and (3) placing the granular mixture dried in the step (III) into a vacuum resistance furnace, carrying out power transmission and heating, keeping the temperature in the vacuum furnace at 950 ℃ and the vacuum degree at 100Pa for vacuum reduction, and when the vacuum degree is less than 15Pa, cooling in a power failure, and discharging after the furnace temperature is reduced to below 100 ℃ to obtain the nickel-chromium alloy.
The mixing device comprises an installation table 1, the top fixedly connected with mixing box 2 of installation table 1, mixing box 2 internal rotation is connected with mixing box 3, be provided with the stirring feed mechanism who is connected with mixing box 2 in the mixing box 3, the surface of mixing box 2 is provided with ejection of compact heat conduction rabbling mechanism, the surface of mixing box 3 is provided with the actuating mechanism who is connected with mixing box 2, through putting into mixing box 2 with the pickling mud, later through putting into mixing box 3 with the dust, later through the mixing rabbling mechanism in mixing box 3 to mix in the mixing box 3 and let in water and make it stir mixing with the dust, calcium oxide and the water reaction that contains in the dust simultaneously generate calcium hydrate, and the reaction generates a large amount of heat simultaneously, and the heat is evenly introduced into the pickling mud through ejection of compact heat conduction rabbling mechanism and is heated, makes its and mud carry out abundant mixing ion with the pickling mud in the raw materials that mix box 3 in with water into the pickling mud in, and then carries out the heat of uniform hydroxide ion and heat and acid radical in the mixing box 2 simultaneously and carries out the heat and the pickling mud and the reaction in the pickling mud and the reaction is accelerated simultaneously and carries out the mixed solution and the heat and the pickling mud and the reaction is fully mixed with the heat and the acid mud in the temperature and the pickling mud is accelerated.
The stirring feeding mechanism comprises a mounting frame 11 fixedly connected with the mixing box 2, a driving pipe 12 rotationally connected with the mixing box 3 is rotationally connected on the mounting frame 11, a driving mechanism is connected on the outer surface of the driving pipe 12 in a driving way, a plurality of discharging pipes 13 are fixedly connected on the outer surface of the driving pipe 12, a connecting pipe 14 fixedly connected with the mounting frame 11 is rotationally connected on the top end of the driving pipe 12, a feeding pipe 15 is fixedly connected on the bottom end of the connecting pipe 14, a water inlet pipe 16 is fixedly connected on the outer surface of the feeding pipe 15, an electromagnetic valve is arranged on the water inlet pipe 16, a water pump 17 is fixedly connected at one end of the water inlet pipe 16, a water tank 18 fixedly connected with the mounting table 1 is fixedly connected at the output end of the water pump 17 through a pipeline, an air inlet pipe 19 is fixedly connected on the outer surface of the feeding pipe 15, one end of the air inlet pipe 19 is fixedly connected with an air pump 190 which is fixedly connected with the water tank 18, the transmission pipe 12 is driven to rotate by a transmission mechanism, the transmission pipe 12 drives the discharge pipe 13 to rotate, meanwhile, the water pump 17 pumps the water pump 17 into the water inlet pipe 16 by a pipeline, an electromagnetic valve on the water inlet pipe 16 is opened, water enters the water inlet pipe 15 by the water inlet pipe 16, then enters the connecting pipe 14 by the water inlet pipe 15, then enters the transmission pipe 12 by the connecting pipe 14 and is discharged by the discharge pipe 13 on the transmission pipe 12, so that the water is uniformly stirred and mixed with the dust, after the mixing is finished, the electromagnetic valve on the water inlet pipe 16 is closed, then the air is supplied into the water inlet pipe 15 by the air pump 190 and the air inlet pipe 19, then the water enters the mixing and stirring box 3 by the connecting pipe 14, the transmission pipe 12 and the discharge pipe 13, and the air pressure in the mixing and stirring box 3 is increased, thereby promoting the discharge of the mixture in the mixing box 3 from the discharge heat conduction mechanism into the mixing box 2.
The transmission mechanism comprises a first motor 21 fixedly connected with a mounting frame 11, the output end of the first motor 21 is fixedly connected with a first rotating shaft 22 through a coupler, the outer surface of the first rotating shaft 22 is fixedly sleeved with a first gear 23, the outer surface of the first gear 23 is in meshed connection with a second gear 24 fixedly sleeved with a transmission tube 12, the first rotating shaft 22 is driven to rotate through the first motor 21, and the first rotating shaft 22 drives the transmission tube 12 to rotate through the first gear 23 and the second gear 24.
The discharging heat conduction stirring mechanism comprises a plurality of heat conduction copper pipes 31 which are fixedly connected with a mixing stirring tank 3, a sealing block 32 is connected with the inner rotation of the heat conduction copper pipes 31, a spring 33 which is fixedly connected with the heat conduction copper pipes 31 is fixedly connected with one side of the sealing block 32, a stop block 34 is fixedly connected with the inside of the heat conduction copper pipes 31, one side of the sealing block 32 is fixedly connected with a solid copper ball 35 through a soft rope, the heat generated by the dust removal ash in the mixing stirring tank 3 and the heat generated by mixing is led into pickling mud in the mixing tank 2 through the heat conduction copper pipes 31, the pickling mud is heated along with the heat, the heat dissipation of the heat is reduced, the heat mixed between the pickling mud and a dust removal solution is improved, the mixing efficiency and the mixing effect between the subsequent dust removal solution and the pickling mud are improved, after the dust removal ash in the mixing stirring tank 3 is fully mixed with water, the solid copper balls 35 on the sealing block 32 are driven to move outwards under the action of rotation centrifugal force by the driving mechanism, the sealing block 32 is pulled by the soft rope, the spring 33 is compressed at the moment, air is pumped into the mixing and stirring box 3 under the action of the air pump 190, the air inlet pipe 19, the feed pipe 15 and the driving pipe 12 to pressurize, the sealing block 32 is rotated under the combined action of thrust and pulling, the heat conduction copper pipe 31 is opened, the dust-removing mixed solution in the mixing and stirring box 3 is discharged into pickling mud uniformly under the action of centrifugal force through the heat conduction copper pipes 31 with different lengths, after the mixed materials in the mixing and stirring box 3 are discharged, the air pump 190 stops supplying air, the tension of the solid copper balls 35 is insufficient to drive the sealing block 32 to rotate at the moment, the sealing block 32 closes the heat conduction copper pipe 31 under the action of restoring force of the spring 33, prevent that the material from reentering into mixing agitator tank 3, mixing agitator tank 3 drives heat conduction copper pipe 31 simultaneously and rotates and fully evenly stirs and mix going in and out between dust removal ash solution and the pickling mud.
The driving mechanism comprises a second motor 41 fixedly connected with the mixing box 2, the output end of the second motor 41 is fixedly connected with a second rotating shaft 42 through a coupler, the outer surface of the second rotating shaft 42 is fixedly sleeved with a third gear 43, the outer surface of the third gear 43 is in meshed connection with a fourth gear 44 fixedly sleeved with the mixing box 3, the second rotating shaft 42 is driven to rotate through the second motor 41, and the second rotating shaft 42 drives the mixing box 3 to rotate through the third gear 43 and the fourth gear 44.
Meanwhile, after the raw materials are mixed, the water in the water tank 18 is pumped into the transmission pipe 12 through the water pump 190, the transmission pipe 12 drives the discharge pipe 13 to rotate, water is sprayed into the mixing and stirring box 3 through the discharge pipe 13, the water is flushed along with the mixing and stirring box 3, then the air supply pressurization is carried out on the mixing and stirring box 3 through the work of the air pump 190, the water in the mixing and stirring box 3 is sprayed out to flush the mixing and stirring box 2 through the heat conducting copper pipe 31, and after flushing, the air is continuously pumped into the mixing and stirring box 3 and the mixing and stirring box 2 through the air pump 190 to be dried, so that the automatic cleaning and air drying of the mixing and stirring box 2 and the mixing and stirring box 3 in the mixing device are realized, the manual cleaning is not needed, and the use of a user is facilitated.
The bottom fixedly connected with transmission shaft 51 of mixing stirring tank 3, the surface fixedly connected with puddler 52 of transmission shaft 51, the bottom fixedly connected with hob 53 of transmission shaft 51, the bottom fixedly connected with row material pipe 54 of mixing tank 2, be provided with electromagnetic valve on the row material pipe 54, drive transmission shaft 51 rotation through mixing stirring tank 3, transmission shaft 51 drives puddler 52 rotation, stir the material of mixing tank 2 bottom, simultaneously transmission shaft 51 drives hob 53 rotation, hob 53 drives the mixture of mixing tank 2 bottom and discharges to be convenient for discharge the material after mixing, take place the jam when preventing the material discharge.
The top of mixing box 2 and mixing box 3 is all fixedly connected with feed hopper 4, be provided with electromagnetic valve on the feed hopper 4, let into mixing box 2 and mixing box 3 respectively through feed hopper 4 with dust removal ash and acid mud, reduce the loss of heat when reacting through electromagnetic valve's closing simultaneously.
The working principle of the invention is as follows: by placing pickling sludge into the mixing box 2, then placing the fly ash into the mixing and stirring box 3, then driving the driving pipe 12 to rotate through the driving mechanism, driving the discharging pipe 13 to rotate through the driving mechanism, simultaneously driving the water pump 17 into the water inlet pipe 16 through the pipeline by the water pump 17, opening an electromagnetic valve on the water inlet pipe 16, then entering water into the water inlet pipe 15 through the water inlet pipe 16, then entering the connecting pipe 14 through the water inlet pipe 15, then entering the driving pipe 12 through the connecting pipe 14, and discharging through the discharging pipe 13 on the driving pipe 12, so that the water is uniformly and fully uniformly stirred and mixed with the fly ash, calcium oxide contained in the fly ash reacts with the water to generate calcium hydroxide, a large amount of heat is generated through the reaction, the fly ash in the mixing and stirring box 3 and heat generated during mixing are led into the pickling sludge in the mixing box 2 through the heat conducting copper pipe 31, the pickling mud is heated, heat dissipation is reduced, heat of mixing between pickling mud and the dust removing solution is improved, mixing efficiency and mixing effect between the following dust removing solution and pickling mud are improved, after mixing is finished, air is supplied into the feeding pipe 15 through the air pump 190 and the air inlet pipe 19 by closing the electromagnetic valve on the water inlet pipe 16, then air is introduced into the mixing and stirring box 3 through the connecting pipe 14, the transmission pipe 12 and the discharging pipe 13, air pressure in the mixing and stirring box 3 is increased, the mixing and stirring box 3 is driven to rotate through the driving mechanism, solid copper balls 35 on the sealing block 32 move outwards under the action of rotation centrifugal force, the sealing block 32 is pulled through the soft rope, the spring 33 is compressed at the moment, and the air pump 190, the air inlet pipe 19 and the air outlet pipe 13 are simultaneously filled into the mixing and stirring box 3, the feeding pipe 15 and the transmission pipe 12 pump gas into the mixing and stirring box 3 for pressurizing, thereby the sealing block 32 rotates under the combined action of thrust and pulling, the heat conduction copper pipe 31 is opened, then the dust-removing mixed solution in the mixing and stirring box 3 is discharged into the pickling mud uniformly through the heat conduction copper pipe 31 with different lengths under the action of centrifugal force, after the mixed material in the mixing and stirring box 3 is discharged, the air pump 190 stops air supply, the pulling force of the solid copper ball 35 is insufficient to drive the sealing block 32 to rotate, the sealing block 32 closes the heat conduction copper pipe 31 under the action of the restoring force of the spring 33, the materials are prevented from reentering the mixing and stirring box 3, the mixing and stirring box 3 drives the heat conduction copper pipe 31 to rotate for sufficiently and uniformly stirring and mixing the dust-removing solution and the pickling mud, hydroxide ions in calcium hydroxide and acid radical ions in the pickling mud are neutralized for carrying out the solution, the generated heat is fully led into the pickling mud for carrying out the heat utilization, the reaction efficiency is accelerated, the efficiency between the dust-removing solution and the pickling mud is accelerated under the environment with higher temperature, the mixing effect between the dust-removing solution and the pickling mud is improved, and the mixed gas is discharged from the top of the mixing box 2 through the electromagnetic valve 2 is opened after the electromagnetic valve 2 is opened for a period of time.
The transmission shaft 51 is driven to rotate through the mixing and stirring box 3, the transmission shaft 51 drives the stirring rod 52 to rotate, materials at the bottom of the mixing box 2 are stirred, meanwhile, the transmission shaft 51 drives the spiral rod 53 to rotate, and the spiral rod 53 drives the mixture at the bottom of the mixing box 2 to be discharged, so that the mixed materials are discharged conveniently, and blockage is prevented when the materials are discharged.
Meanwhile, after the raw materials are mixed, the water in the water tank 18 is pumped into the transmission pipe 12 through the water pump 190, the transmission pipe 12 drives the discharge pipe 13 to rotate, water is sprayed into the mixing and stirring box 3 through the discharge pipe 13, the water is flushed along with the mixing and stirring box 3, then the air supply pressurization is carried out on the mixing and stirring box 3 through the work of the air pump 190, the water in the mixing and stirring box 3 is sprayed out to flush the mixing and stirring box 2 through the heat conducting copper pipe 31, and after flushing, the air is continuously pumped into the mixing and stirring box 3 and the mixing and stirring box 2 through the air pump 190 to be dried, so that the automatic cleaning and air drying of the mixing and stirring box 2 and the mixing and stirring box 3 in the mixing device are realized, the manual cleaning is not needed, and the use of a user is facilitated.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (8)
1. A process for producing nichrome by utilizing solid waste dust and acid washing mud is characterized by comprising the following steps:
step one, respectively placing pickling sludge and dedusting ash into a mixing box (2) and a mixing stirring box (3) in a mixing device;
step two, fully and uniformly mixing pickling mud and dust by matching a stirring feeding mechanism and a discharging heat conduction stirring mechanism on a mixing stirring box (3) to obtain a mixture;
step three, the mixture and the polyvinyl alcohol binder are simultaneously put into a roller granulator for granulation;
step four: and (3) placing the granular mixture dried in the step (III) into a vacuum resistance furnace, carrying out power transmission and heating, keeping the temperature in the vacuum furnace at 950 ℃ and the vacuum degree at 100Pa for vacuum reduction, and when the vacuum degree is less than 15Pa, cooling in a power failure, and discharging after the furnace temperature is reduced to below 100 ℃ to obtain the nickel-chromium alloy.
2. The process for producing nichrome by utilizing solid waste dust and acid washing mud according to claim 1, wherein the mixing device comprises a mounting table (1), a mixing box (2) is fixedly connected to the top of the mounting table (1), a mixing stirring box (3) is rotationally connected to the mixing box (2), a stirring feeding mechanism connected with the mixing box (2) is arranged in the mixing stirring box (3), a discharging heat-conducting stirring mechanism is arranged on the outer surface of the mixing box (2), and a driving mechanism connected with the mixing box (2) is arranged on the outer surface of the mixing stirring box (3).
3. The process for producing nichrome by utilizing solid waste dust and pickling mud according to claim 2, wherein the stirring feeding mechanism comprises a mounting frame (11) fixedly connected with a mixing box (2), a transmission pipe (12) rotationally connected with the mixing box (3) is rotationally connected on the mounting frame (11), the outer surface transmission of the transmission pipe (12) is connected with the transmission mechanism, the outer surface fixedly connected with a plurality of discharging pipes (13) of the transmission pipe (12), the top end of the transmission pipe (12) is rotationally connected with a connecting pipe (14) fixedly connected with the mounting frame (11), the bottom end of the connecting pipe (14) is fixedly connected with a feeding pipe (15), the outer surface fixedly connected with a feeding pipe (16) of the feeding pipe (15), an electromagnetic valve is arranged on the feeding pipe (16), one end of the feeding pipe (16) is fixedly connected with a water pump (17), the output end of the water pump (17) is fixedly connected with a water tank (18) fixedly connected with a mounting table (1) through a pipeline, the outer surface of the feeding pipe (12) is rotationally connected with a connecting pipe (14) fixedly connected with a water tank (19) fixedly connected with the air pump (190).
4. A process for producing nichrome by utilizing solid waste dust and acid washing mud according to claim 3, wherein the transmission mechanism comprises a first motor (21) fixedly connected with a mounting frame (11), the output end of the first motor (21) is fixedly connected with a first rotating shaft (22) through a coupling, the outer surface of the first rotating shaft (22) is fixedly sleeved with a first gear (23), and the outer surface of the first gear (23) is in meshed connection with a second gear (24) fixedly sleeved with a transmission tube (12).
5. The process for producing nichrome by utilizing solid waste dust and acid sludge according to claim 2, wherein the discharging heat conduction stirring mechanism comprises a plurality of heat conduction copper pipes (31) which are fixedly connected with a mixing stirring box (3), a sealing block (32) is connected with the inner rotation of the heat conduction copper pipes (31), a spring (33) fixedly connected with the heat conduction copper pipes (31) is fixedly connected with one side of the sealing block (32), a stop block (34) is fixedly connected in the heat conduction copper pipes (31), and a solid copper ball (35) is fixedly connected with one side of the sealing block (32) through a soft rope.
6. The process for producing nichrome by utilizing solid waste dust and acid sludge according to claim 2, wherein the driving mechanism comprises a second motor (41) fixedly connected with the mixing box (2), an output end of the second motor (41) is fixedly connected with a second rotating shaft (42) through a coupling, a third gear (43) is fixedly sleeved on the outer surface of the second rotating shaft (42), and a fourth gear (44) fixedly sleeved with the mixing box (3) is connected on the outer surface of the third gear (43) in a meshed manner.
7. The process for producing nichrome by utilizing solid waste dust and acid washing mud according to claim 2, wherein a transmission shaft (51) is fixedly connected to the bottom of the mixing stirring tank (3), a stirring rod (52) is fixedly connected to the outer surface of the transmission shaft (51), a screw rod (53) is fixedly connected to the bottom end of the transmission shaft (51), a discharge pipe (54) is fixedly connected to the bottom of the mixing tank (2), and an electromagnetic valve is arranged on the discharge pipe (54).
8. The process for producing nichrome by utilizing solid waste dust and acid washing mud, according to claim 2, wherein the tops of the mixing box (2) and the mixing stirring box (3) are fixedly connected with a feeding funnel (4), and the feeding funnel (4) is provided with an electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310993987.0A CN117004821A (en) | 2023-08-09 | 2023-08-09 | Process for producing nickel-chromium alloy by utilizing solid waste dust and pickling mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310993987.0A CN117004821A (en) | 2023-08-09 | 2023-08-09 | Process for producing nickel-chromium alloy by utilizing solid waste dust and pickling mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117004821A true CN117004821A (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310993987.0A Pending CN117004821A (en) | 2023-08-09 | 2023-08-09 | Process for producing nickel-chromium alloy by utilizing solid waste dust and pickling mud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117004821A (en) |
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2023
- 2023-08-09 CN CN202310993987.0A patent/CN117004821A/en active Pending
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