CN101983761A - Method for recycling and granulating reclaimed materials in isostatic pressing process - Google Patents
Method for recycling and granulating reclaimed materials in isostatic pressing process Download PDFInfo
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- CN101983761A CN101983761A CN 201010522907 CN201010522907A CN101983761A CN 101983761 A CN101983761 A CN 101983761A CN 201010522907 CN201010522907 CN 201010522907 CN 201010522907 A CN201010522907 A CN 201010522907A CN 101983761 A CN101983761 A CN 101983761A
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Abstract
The invention discloses a method for recycling and granulating reclaimed materials in isostatic pressing process, which solves the problems of complicated recycling and granulating process, high energy consumption and water resource consumption and high production cost. The reclaimed materials are treated by the following steps: (1) grinding the reclaimed materials by a dry method, and filtering the grinded powder through a 80-mesh screen; (2) laying the grinded powder in a plate; (3) humidifying the powder in the plate by a humidifier, and frying and granulating simultaneously; and (4) screening the humidified powder through a 60-mesh shacking screen to obtain qualified powdered particles. The method has the advantages of simple process, convenient operation, energy conservation, equipment investment conservation and low production cost.
Description
Technical field
The material method is made in the recovery that the present invention relates to reclaimed materials in a kind of isostatic compaction technology.
Background technology
Isostatic compaction technology is generally used for the preparation pottery; concrete grammar is the powder that the composite mortar after the wet-milling is formed the certain granules degree by the sponging granulator granulation; pack in the moulding rubber die; in cold isostatic press, be pressed into base just; with lathe first base car is made into base by drawing then, be fired into ceramic product by high temperature kiln at last.In the forming by turning process; just redundance can be eliminated on the base; make final powder utilization rate have only 60% (percentage by weight); 40% powder that eliminates (being reclaimed materials) is based on saving the requirement recovery again of Li Yuan again of cost, resource; this class reclaimed materials can reload ball mill usually and add water for ball milling slurrying; use the sponging granulator granulation once more, its granulation process and virgin material granulation are just the same, make energy resource consumption the same with the virgin material granulation.As granulation 600kg reclaimed materials, need water consumption 1000kg, power consumption 70Kw, consumption natural gas 90m
3, 10h consuming time, obviously, this method is used for the reclaimed materials granulation, repeat consumption a large amount of energy, increased production cost.
Summary of the invention
To the objective of the invention is in order solving the problems of the technologies described above, to provide the recovery simple, easy and simple to handle, that be beneficial to reclaimed materials in the low isostatic compaction technology of energy conservation, equipment investment and production cost of a kind of technology to make the material method.
Reclaimed materials is by following step process: with reclaimed materials by following step process: (1) carries out dry grinding with reclaimed materials, crosses 80 mesh sieves after grinding to form powder; (2) will grind good powder spreads in the dish; (3) with humidifier powder in coiling is carried out humidification, and the granulation that stir-fries simultaneously; (4) will add wet process crosses and obtains qualified powder particle after powder is crossed 60 order shaking screens.
The dry ball of in the described step (1) reclaimed materials being packed into, the 1.5-2 heavy by material extraordinarily goes into mill ball, and mill ball is alumina balls or zirconia ball, ball milling 2-4 hour.
The thickness that powder is spread in the dish in the described step (2) is 20-40mm.
The spray amount of per 10 kilograms of reclaimed materials is 200-250ml/h in the described step (3), and the humidification time of stir-frying is 30-120 second.
The inventor scrutinizes reclaimed materials, finds that reclaimed materials has following characteristics: 1. because reclaimed materials produces its granule size inequality, even exist with little bulk form in the forming by turning process; 2. reclaimed materials has passed through wet-milling and comminutor granulation, contains certain moisture content, easier granulating and forming; 3. reclaimed materials has passed through the levigate hybrid technique of raw material and has obtained, and has rational proportioning components, need not to add in addition component, directly granulation.
Because reclaimed materials has above characteristics; the inventor considers that this reclaimed materials can need not to add the water wet-milling; and directly tentatively dry grind; make the excessive reclaimed materials of particle diameter wherein by levigate to targeted particle size 60 orders; powder after the dry grinding tiles in the dish; with the atomized water spray form while stir-frying humidification; because reclaimed materials itself contains certain moisture; corresponding had a certain particle; in the humidification that stir-fries; utilize the granulation at short notice easily of a small amount of water smoke; powder after the granulation is crossed 60 order shaking screens can obtain qualified powder particle; the present invention is just the same with the powder particle that obtains through the sponging granulator granulation by the powder particle that reclaimed materials makes, and can be used in the subsequent handling of isostatic compaction technology equally.The thickness of described shop dish is preferably in 20-40mm, to improve the stir-fry granulation effect of technology of follow-up humidification.Described dry grinding can adopt dry ball or agitated ball mill to grind, the preferred dry ball of using, and the 1.5-2 that weighs by material extraordinarily goes into mill ball, mill ball is alumina balls or zirconia ball, the advantage that dry ball has is simple to operate, discharging is fast, be particularly suitable for reclaimed materials of the present invention, alumina balls or zirconia ball hardness height, wearability are good, can improve grinding efficiency and can not bring impurity into.
The inventive method has the following advantages:
1. compared to reclaimed materials is added the water wet-milling again, compare by the technology of comminutor granulation, technology of the present invention is very simple again, has made full use of the characteristics of reclaimed materials self, and the particle diameter of granulation and every index all satisfy the granulation requirement in the isostatic compaction technology.
2. owing to do not adopt wet-milling and sponging granulator granulation, reasonable energy utilization, water consumption is few, can save great lot of water resources, has also saved simultaneously by the various energy resource consumptions of using the spraying grain-making machine to bring.With the inventive method of granulation 600kg reclaimed materials compared with the prior art, owing to do not consume natural gas, can save consumption natural gas 90m
3Power consumption only needs 8Kw, and 62Kw can economize on electricity; Consume water is 6-12kg only, but conserve water 888-994kg, by relatively finding out that the present invention is energy savings and water resource greatly, significantly reduces production costs.
The specific embodiment
Embodiment 1:
The 100kg reclaimed materials is packed in the dry ball of 400L, add the 150kg alumina balls, ball milling discharging after 2 hours, powder is crossed 80 mesh sieves, the powder that mill is the good aluminium dish of packing into, every dish is adorned 10 kilograms, and powder thickness is 20mm, with humidifier powder in coiling is carried out humidification, every dish powder spray amount is 250ml/h, humidification limit, limit stir-fries with stainless steel shovel, and humidification stir-fries 30 seconds time, and the powder that will handle is crossed 60 order shaking screens then.Powder water content after testing is 0.9% (percentage by weight), and granularity is the 60-140 order.
Embodiment 2:
The 100kg reclaimed materials is packed in the dry ball of 400L, add the 200kg zirconia ball, ball milling discharging after 3 hours, powder is crossed 80 mesh sieves, the powder that mill is the good aluminium dish of packing into, every dish is adorned 10 kilograms, and powder thickness is 30mm, with humidifier powder in coiling is carried out humidification, every dish powder spray amount is 220ml/h, humidification limit, limit stir-fries with stainless steel shovel, and humidification stir-fries 80 seconds time, and the powder that will handle is crossed 60 order shaking screens then.Powder water content after testing is 1.1% (percentage by weight), and granularity is the 60-140 order.
Embodiment 3:
The 100kg reclaimed materials is packed in the dry ball of 400L, add the 180kg alumina balls, ball milling discharging after 4 hours, powder is crossed 80 mesh sieves, the powder that mill is the good aluminium dish of packing into, every dish is adorned 10 kilograms, and powder thickness is 40mm, with humidifier powder in coiling is carried out humidification, every dish powder spray amount is 200ml/h, humidification limit, limit stir-fries with stainless steel shovel, and humidification stir-fries 120 seconds time, and the powder that will handle is crossed 60 order shaking screens then.Powder water content after testing is 1.2% (percentage by weight), and granularity is the 60-140 order.
Claims (4)
1. the recovery prilling process of reclaimed materials in the isostatic compaction technology is characterized in that, with reclaimed materials by following step process: (1) carries out dry grinding with reclaimed materials, crosses 80 mesh sieves after grinding to form powder; (2) will grind good powder spreads in the dish; (3) with humidifier powder in coiling is carried out humidification, and the granulation that stir-fries simultaneously; (4) will add wet process crosses and obtains qualified powder particle after powder is crossed 60 order shaking screens.
2. the recovery prilling process of reclaimed materials in the isostatic compaction technology as claimed in claim 1, it is characterized in that, the dry ball of in the described step (1) reclaimed materials being packed into, the 1.5-2 heavy by material extraordinarily goes into mill ball, mill ball is alumina balls or zirconia ball, ball milling 2-4 hour.
3. the recovery prilling process of reclaimed materials is characterized in that in the isostatic compaction technology as claimed in claim 1, and the thickness that powder is spread in the dish in the described step (2) is 20-40mm.
4. as the recovery prilling process of reclaimed materials in claim 1 or the 2 or 3 described isostatic compaction technologies, it is characterized in that the spray amount of per 10 kilograms of reclaimed materials is 200-250ml/h in the described step (3), the humidification time of stir-frying is 30-120 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010522907 CN101983761A (en) | 2010-10-28 | 2010-10-28 | Method for recycling and granulating reclaimed materials in isostatic pressing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010522907 CN101983761A (en) | 2010-10-28 | 2010-10-28 | Method for recycling and granulating reclaimed materials in isostatic pressing process |
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| CN101983761A true CN101983761A (en) | 2011-03-09 |
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| CN 201010522907 Pending CN101983761A (en) | 2010-10-28 | 2010-10-28 | Method for recycling and granulating reclaimed materials in isostatic pressing process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106220148A (en) * | 2016-07-08 | 2016-12-14 | 苏州珂玛材料技术有限公司 | A kind of aluminium oxide ceramics green compact feed back processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101168487A (en) * | 2006-10-28 | 2008-04-30 | 苏国干 | Ceramic raw material processing technique |
| CN101696112A (en) * | 2009-10-30 | 2010-04-21 | 蓝辉 | Method for preparing medium and high-aluminum abrasion-resistant ceramic product by using rolling rod waste |
-
2010
- 2010-10-28 CN CN 201010522907 patent/CN101983761A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101168487A (en) * | 2006-10-28 | 2008-04-30 | 苏国干 | Ceramic raw material processing technique |
| CN101696112A (en) * | 2009-10-30 | 2010-04-21 | 蓝辉 | Method for preparing medium and high-aluminum abrasion-resistant ceramic product by using rolling rod waste |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106220148A (en) * | 2016-07-08 | 2016-12-14 | 苏州珂玛材料技术有限公司 | A kind of aluminium oxide ceramics green compact feed back processing method |
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Application publication date: 20110309 |