CN111468503B - Waste supporting ball recovery processing method - Google Patents
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- CN111468503B CN111468503B CN202010204284.1A CN202010204284A CN111468503B CN 111468503 B CN111468503 B CN 111468503B CN 202010204284 A CN202010204284 A CN 202010204284A CN 111468503 B CN111468503 B CN 111468503B
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- 239000002699 waste material Substances 0.000 title claims abstract description 62
- 238000011084 recovery Methods 0.000 title claims description 11
- 238000003672 processing method Methods 0.000 title claims description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000004064 recycling Methods 0.000 claims abstract description 24
- 239000002253 acid Substances 0.000 claims abstract description 23
- 238000000498 ball milling Methods 0.000 claims abstract description 18
- 238000002791 soaking Methods 0.000 claims abstract description 8
- 238000012216 screening Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract 2
- 238000005406 washing Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 17
- 239000004566 building material Substances 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- 239000011819 refractory material Substances 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 239000002244 precipitate Substances 0.000 claims description 10
- 210000003097 mucus Anatomy 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910017052 cobalt Inorganic materials 0.000 claims description 8
- 239000010941 cobalt Substances 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 239000011733 molybdenum Substances 0.000 claims description 7
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000008394 flocculating agent Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 9
- 239000000919 ceramic Substances 0.000 description 9
- 239000012065 filter cake Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000005504 petroleum refining Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- -1 chemical engineering Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a waste supporting ball recycling method, which comprises the steps of waste supporting balls → cleaning → ball milling → cleaning → acid liquor soaking → cleaning → ball milling → screening, and classifying and collecting the cleaning fluid and the solid residues in each step, and obtaining different products after treatment, so that the waste supporting balls can be used as much as possible. The technical problem of low utilization rate and added value of the waste supporting balls is solved, the obtained byproducts of all levels are fully used, and the gap of renewable utilization of the waste supporting balls is creatively filled; no discharge of three industrial wastes, and accords with the new concepts of environmental protection and circular economy.
Description
Technical Field
The invention relates to the technical field of waste recovery, in particular to a waste supporting ball recovery processing method.
Background
The support ball is also called as filler ball, is a ceramic filler produced by using alumina material as main processing, is used as a covering support material of catalyst in a reactor and tower filler, is widely used in the industries of petroleum, chemical industry, chemical fertilizer, natural gas, environmental protection and the like, and mainly has the functions of increasing gas or liquid distribution points, supporting and protecting the active catalyst with low strength. The support ball has excellent high temperature resistance, high pressure resistance, corrosion resistance, low water absorption and stable performance.
Patent document CN 102153362 a discloses a method for recovering alumina foamed ceramic waste, which comprises the following steps: firstly, ball-milling the waste alumina foam ceramic products to micron order as a material for producing new alumina foam ceramic, and combining a-alumina, washing kaolin, calcined kaolin, silicon micropowder and potash feldspar; adding aluminum dihydrogen phosphate solution according to the amount to prepare slurry; mixing the two materials uniformly to prepare a blank; drying and sintering to form a new alumina foamed ceramic filter; however, the method not only has more complicated operation steps, but also has low added value.
Patent document CN201610823263.1 discloses a method for recycling alumina ceramic waste, which comprises the following steps: recovering, cleaning, classifying and crushing the ceramic waste; and then, carrying out physical and chemical detection and modification treatment on the ceramic waste: adding a modifier according to the detection result; mixing, ball milling for over 24 hr, sieving and forming ceramic product.
The two methods for treating the alumina ceramic waste aim at the damaged support ball waste generated in the process of producing the support balls, the essence is to aim at a defective ball treatment mode, the recovered waste alumina ceramic waste is crushed, and a modifier or ingredients are added to prepare a raw material for forming a corresponding ceramic product, although the waste support balls can be recycled to a certain degree, the prepared finished product is often rich in impurities, poor in performance, low in utilization rate and low in added value; meanwhile, only inferior balls can be treated, but the waste supporting balls eliminated in the industries of petroleum, chemical engineering, chemical fertilizer, natural gas, environmental protection and the like cannot be recycled.
Currently, the number of waste support balls is increasing due to the wide application field of the support balls. According to the statistics of related data, the waste supporting balls which are eliminated every year in China at present are up to 30 ten thousand tons. At present, the waste supporting balls are usually treated in a simple landfill mode; therefore, not only can soil body and underground water be polluted, but also recyclable resources (a large amount of high-value-added metal elements such as molybdenum, cobalt, copper, zinc, nickel and the like which are brought out by bonding of the ceramic material and the waste supporting balls) are greatly wasted.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for recycling and treating waste supporting balls, which aims to solve the technical problems that the existing treatment method cannot realize the recycling of the supporting balls and high-value metal elements and can cause environmental pollution (such as soil, water and the like).
The invention comprehensively adopts various treatment measures (such as cleaning, ball milling, acid leaching, fine selection and the like), can fully realize high-value recycling of various resources, and fills the gap of reutilization of waste supporting balls.
In order to solve the technical problems, the invention adopts the following technical scheme:
a waste supporting ball recovery processing method is designed, and comprises the following steps:
1) cleaning the waste supporting balls for the first time, collecting the cleaning liquid for the first time, performing precipitation treatment, and clarifying and filtering the liquid for recycling;
2) carrying out ball milling on the support balls obtained by the treatment in the step 1) for 1-4 times, cleaning during and/or after the ball milling, settling or filtering and separating cleaning liquid to obtain mucus residues and filtrate, combining the mucus residues for each time, carrying out filter pressing, using the mucus residues as industrial raw materials such as building materials and refractory materials, and combining the filtrates for recycling;
3) soaking the ball material obtained in the step 2) in a dilute acid solution to remove impurities, washing and drying the ball material obtained by filtering and separating, and precipitating the obtained filtered acid solution for recycling; clarifying the wastewater obtained by cleaning, and recycling the clarified wastewater into the step 1), the step 2) or/and the step 3);
4) the dried ball material is separated into reusable support balls and non-directly-reusable broken balls, mixed color balls or/and crushed materials according to the integrity and color of the ball material.
Preferably, in the step 1), the support ball is put into a cleaning machine for cleaning for at least 10min during one cleaning.
Preferably, in the step 1), the collected cleaning solution is added with a flocculating agent to obtain a precipitate, and the precipitate is made into a filter cake by a filter press and is used as a raw material for refining metals (such as cobalt, nickel, molybdenum and/or copper).
Preferably, in the step 2), the support balls are put into a ball mill for ball milling for 1-3 hours, and the rotating speed of the ball mill is controlled to be 25-40 r/min.
Preferably, in the step 3), the diluted acid solution is at least one of diluted hydrochloric acid, diluted nitric acid, diluted sulfuric acid, diluted acetic acid and diluted oxalic acid.
Preferably, in the step 3), the ball body soaked in the dilute acid to remove impurities is subjected to ball milling and washing for 1-2 times, and the washing is water washing or/and organic solvent washing.
Preferably, in the step 3), when the pH value of the dilute acid solution obtained by filtering is near neutral, the dilute acid solution is not reused, and stone powder is added into the dilute acid solution for treatment to prepare the building material.
Preferably, in the step 4), the sorted non-directly-utilizable residual broken balls, impure color balls or/and crushed materials are crushed to prepare the refractory material.
Preferably, in any one of the steps 1) to 4), sieving is combined.
Compared with the prior art, the invention has the beneficial technical effects that:
1. the invention creatively fills the blank of recycling the waste supporting balls, and the regenerated balls obtained by cleaning, ball milling and acid soaking have high relative hardness, uniform texture, smooth surface, no damage or crack balls, good appearance and long service life; the method realizes the maximum value recycling of the waste supporting balls, does not discharge industrial three wastes, not only reduces the pollution of soil and water caused by burying the supporting balls, but also greatly saves the clay which is a non-renewable resource consumed by producing new supporting balls.
2. The wet treatment process is adopted, so that the generation of dust can be effectively avoided, impurities on the surfaces of the waste supporting balls are removed through multiple times of washing and ball milling, and meanwhile, the flushing liquid is collected and reasonably reused, so that the additional value of waste utilization is increased as much as possible; finally, high-value metals such as cobalt, molybdenum and/or copper, refractory materials, building materials and supporting balls meeting the reuse standard are obtained, and all levels of byproducts can be used fully.
3. The invention can effectively avoid the toxic and harmful substances from flowing into the environment in the treatment process of the waste supporting balls, saves energy consumption and conforms to the new concept of environmental protection and circular economy.
Drawings
FIG. 1 is a photograph of the waste support balls of the present invention before treatment.
FIG. 2 is a photograph of a waste supporting ball treated by the method of the present invention.
Fig. 3 is a photograph of the same kind of new supporting ball on the market.
Detailed Description
The following examples are intended to illustrate the present invention in detail and should not be construed as limiting the scope of the present invention in any way.
The programs referred to or relied on in the following embodiments are all conventional programs or simple programs in the art, and those skilled in the art can make routine selection or adaptation according to specific application scenarios.
Example 1
A waste supporting ball recovery processing method comprises the following steps:
1) circularly flushing the waste supporting balls in a cleaning tank for 2 hours, collecting cleaning liquid, adding a flocculating agent (PAC) into the cleaning liquid to obtain a precipitate, preparing the precipitate into a filter cake by using a filter press, and respectively extracting metal elements such as cobalt, molybdenum, copper and the like in the filter cake by using a conventional metallurgical method.
2) Putting the support balls obtained in the step 1) into a ball mill for ball milling for 2h, washing the ground support balls, collecting washing liquid, settling to obtain mucus residues, combining the mucus residues, performing filter pressing to obtain building materials, refractory materials and the like, combining filtrates, clarifying and recycling;
3) soaking the support ball obtained in the step 2) in dilute hydrochloric acid with the mass percent of 5%, and adding stone powder for treatment when the pH value of the dilute acid liquid obtained by filtering is near neutral to obtain a building material; the obtained support balls are subjected to ball milling for 1 hour, then are washed, drained and dried, and are screened in the aspect of size specification through a grading screen;
4) screening according to the texture and color of the support balls, picking out and crushing the support balls with variegates, cracks and concave holes to prepare a refractory material, wherein the support balls with complete shape, color and uniform size are used as regeneration support balls; and crushing the sorted residual broken balls, the mixed color balls or/and the crushed materials which cannot be directly utilized to prepare refractory materials or building materials and the like.
Example 2
A waste supporting ball recovery processing method comprises the following steps:
1) circularly flushing the waste supporting balls in a cleaning tank for 1.5 hours, collecting cleaning liquid, adding a flocculating agent (PAS) into the cleaning liquid to obtain a precipitate 1, preparing the precipitate 1 into a filter cake by using a filter press, and extracting cobalt, nickel and copper in the filter cake.
2) Putting the support balls obtained in the step 1) into a ball mill for ball milling for 3h, washing the ground support balls, collecting washing liquid, settling to obtain mucus residues, and performing filter pressing to obtain a building material;
3) soaking the support ball obtained in the step 2) in dilute acetic acid with the mass percentage of 5%, replacing acid liquor at intervals, adding a certain amount of stone powder into the replaced acid liquor to be used as a raw material of a building material, and further soaking or repeatedly washing impurities by combining with an organic solvent, such as diethyl ether, ethanol and the like;
4) waste supporting balls are selected through grading screening, screening is carried out according to the texture and the color of the supporting balls, the supporting balls with variegates, cracks and concave holes are picked out and crushed to be used as raw materials of refractory materials, and the supporting balls with complete shapes, uniform color and uniform size are used as the supporting balls.
Example 3
A waste supporting ball recovery processing method comprises the following steps:
1) circularly flushing the waste supporting balls in a cleaning tank for 2 hours, collecting cleaning liquid, adding a flocculating agent (PFC) into the cleaning liquid to obtain a precipitate 1, preparing the precipitate 1 into a filter cake by using a filter press, and extracting cobalt, molybdenum, nickel and copper in the filter cake.
2) Putting the support balls obtained in the step 1) into a ball mill for ball milling for 2.5h, washing the ground support balls, collecting washing liquid, and settling to obtain mucus residues so as to obtain the building material;
3) soaking the support ball obtained in the step 2) in dilute acetic acid with the mass percentage of 5%, replacing acid liquor at intervals, and adding a certain amount of stone powder into the replaced acid liquor to be used as a raw material of a building material;
4) the waste supporting balls are screened by rotary grading screening, screening is carried out according to the texture and the color of the supporting balls, the supporting balls with variegates, cracks and concave holes are picked out and crushed to be used as refractory materials, and the supporting balls with complete shapes, color and uniform size are used as the supporting balls.
Examples of effects
In 9 months in 2019, 600 tons of waste supporting balls with the diameter of 0.3 cm-6 cm are recovered from a certain petroleum refining company, the treatment method of example 1 is adopted to obtain the regenerated supporting balls, the recovery rate of the regenerated balls is 85-95% by weight, the appearance of the product is shown in figure 2, the regenerated balls are reused for petroleum refining, the produced refractory materials are sold in refractory material companies, the produced metals such as cobalt, molybdenum, copper and the like are further separated and purified, and the comprehensive produced additional value reaches 300 ten thousand yuan.
Calculated according to the quantity of the waste supporting balls which are discarded by 30 million tons every year, the method for treating the waste supporting balls by adopting the method can obtain nearly 21 million tons of regenerated supporting balls, and compared with the traditional method for burying the waste supporting balls, the method for treating the waste supporting balls by adopting the method has the advantages that waste pollution (rare or precious metal recovery) is avoided, the production quantity of new balls is reduced (the consumption of clay resources is reduced), and the resource waste with the value of nearly 20 million yuan can be reduced every year.
As can be seen from comparison of the drawings 1-3, the supporting balls treated by the method effectively remove impurities on the surfaces of the waste supporting balls, and have smooth surfaces, uniform color and good glossiness; the detection shows that the average hardness and the high temperature resistance of the regenerated ball reach or are slightly higher than the average standard of the new ball, and the regenerated ball can meet the requirement of being reused in the petroleum smelting industry.
While the present invention has been described in detail with reference to the drawings and the embodiments, those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention, and a plurality of specific embodiments are formed, which are common variation ranges of the present invention, and will not be described in detail herein.
Claims (9)
1. A waste supporting ball recovery processing method is characterized by comprising the following steps:
1) cleaning the waste supporting balls for the first time, collecting cleaning liquid, performing precipitation treatment, and recycling clarified filtrate; collecting the cleaning liquid and adding a flocculating agent to obtain a precipitate, and using the precipitate as a metal refining raw material after dewatering;
2) carrying out ball milling on the support balls obtained by the treatment in the step 1) for 1-4 times, cleaning during and/or after the ball milling, settling or filtering and separating cleaning fluid to obtain mucus residues and filter liquor, combining the mucus residues for each time, carrying out filter pressing to obtain a raw material of a building material or a refractory material, and combining the filter liquor for each time for recycling;
3) soaking the spherical material obtained in the step 2) in a dilute acid solution to remove impurities, and washing and drying the spherical material obtained by filtering and separating; precipitating the obtained filtered acid liquor for recycling, clarifying the waste water obtained by cleaning, and recycling the clarified waste water to the step 1), the step 2) or/and the step 3);
4) the dried ball material is separated into reusable support balls and non-directly-reusable broken balls, mixed color balls or/and crushed materials according to the integrity and color of the ball material.
2. The method for recycling and processing the waste supporting balls according to claim 1, wherein in the step 1), the supporting balls are put into a cleaning machine for cleaning for at least 10min during one-time cleaning.
3. The method for recycling and treating waste supporting balls according to claim 1, characterized by being used for extracting at least one of cobalt, molybdenum, nickel, titanium and/or copper.
4. The method for recycling and treating waste supporting balls according to claim 1, wherein in the step 2), the supporting balls are ball-milled at a rotating speed of 25-40 rpm for 1-3 hours.
5. The method for recycling and treating the waste supporting balls according to claim 1, wherein in the step 3), the diluted acid solution is at least one of diluted hydrochloric acid, diluted nitric acid, diluted sulfuric acid, diluted acetic acid and diluted oxalic acid.
6. The method for recycling and processing the waste supporting balls according to claim 1, wherein in the step 3), the balls soaked in the dilute acid to remove impurities are subjected to ball milling and washing for 1-2 times, and the washing is water washing or/and organic solvent washing.
7. The method for recycling and treating the waste supporting balls according to claim 1, wherein in the step 3), when the pH value of the diluted acid solution obtained by filtering is nearly neutral or the acid concentration is lower than the specified requirement, the diluted acid solution is not reused, and stone powder is added into the diluted acid solution for treatment to prepare the building material.
8. The recycling method of the used supporting balls as claimed in claim 1, wherein in the step 4), the waste balls, the mixed color balls or/and the crushed materials which are not directly utilized and obtained by crushing and sorting are used for preparing refractory materials or building materials.
9. The method for recycling and treating the waste supporting balls according to claim 1, wherein screening is combined in any one of the steps 1) to 4).
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| CN1491748A (en) * | 2002-07-06 | 2004-04-28 | 段文辉 | Method for regenerating and reutilizing porcelain balls (columns) |
| CN100400684C (en) * | 2006-05-19 | 2008-07-09 | 中国石油化工股份有限公司 | Method for recovering noble-metal from waste catalyst |
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| CN106083078A (en) * | 2016-06-08 | 2016-11-09 | 太原科技大学 | A kind of high ferro bauxite is utilized to produce low ferrum refractory material and the method for ferrum oxide |
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| CN109913652B (en) * | 2017-12-13 | 2021-02-09 | 中国科学院过程工程研究所 | Comprehensive treatment method for waste refractory material in preparation process of ternary cathode material |
| CN210010234U (en) * | 2019-04-17 | 2020-02-04 | 聊城煤泗新材料科技有限公司 | Ceramic ball flushing environment-friendly energy-saving device |
| CN210138896U (en) * | 2019-06-26 | 2020-03-13 | 埃克诺新材料（大连）有限公司 | Silicon nitride ceramic ball belt cleaning device |
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2020
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