CN105727833B - A method of preparing bead seed and balling-up - Google Patents
A method of preparing bead seed and balling-up Download PDFInfo
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- CN105727833B CN105727833B CN201410743260.8A CN201410743260A CN105727833B CN 105727833 B CN105727833 B CN 105727833B CN 201410743260 A CN201410743260 A CN 201410743260A CN 105727833 B CN105727833 B CN 105727833B
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Abstract
The invention discloses a kind of method for preparing bead seed and balling-up, the method for preparing bead seed includes: to contact powder with liquids, and the mixture after contact obtains particulate matter through compression, and the particulate matter is sieved, bead seed is obtained.The method of balling-up includes: that (1) prepares bead seed；(2) the bead seed is added in roller-ball devices and carries out roller forming；Wherein, the method for preparing bead seed is carried out according to the aforementioned method.With the method for the invention it is achieved that continuous production, greatly improves production efficiency and the degree of automation, while operating environment has also obtained corresponding improvement.
Description
Technical field
The present invention relates to chemical fields, and in particular, to a kind of method for preparing bead seed and a kind of method of balling-up.
Background technique
Traditional bead (referring to that diameter is less than 2mm) balling technique is often in two steps: the first step is the production of hybrid seeds, in spin pot slowly
Powder is rolled, and a small amount of liquid-containing binder is added batch-wise, fine particle is formed, as seed.This step is had to slowly, otherwise pole
Bulky grain is easily formed, the production of hybrid seeds is caused to fail.Second step is long ball, based on seed, adds powder and liquid-containing binder, gradually
The bead of granularity needed for long great achievement.This method leans on gravity in spin pot, and powder tumbles progress repeatedly, and the time is long, operation
Environment is poor, and relies on artificial experience, and operation is discontinuous.
CN102177093A discloses a kind of manufacturing method of high-strength zeolite bead molding, refers in globulation
In, first zeolite is mixed with kaolin, then plus water sieves by rolling granulating and forming, the preform of Ф 1.7mm is made,
That is seed, balling-up of then growing up on this basis.This method is traditional balling technique, and preform is in spin pot
It is granulated by rolling, low efficiency, time are long.
Summary of the invention
The purpose of the present invention is overcoming in existing technology, that there are production efficiencys is low, operating environment is poor, production process does not connect
It is continuous and provide a kind of new method for preparing bead seed the defects of rely on manual operation, large labor intensity.
By it is aforementioned it is recognised that prepare bead seed using existing technology (in spin pot slowly roll powder, and
A small amount of liquid-containing binder is added batch-wise, forms fine particle, that is, bead seed), very high, speed of production is required to artificial operation
Slowly, low efficiency, spin pot mouth have powder fugitive dust, and operating environment is poor.
Through long term test, it was found by the inventors of the present invention that uniformly mixed powder is soaked in advance to certain water content,
It is re-fed into compression device to be compacted powder, is then sieved according to required granularity, obtains bead seed, which is added
Roller forming is carried out into roller-ball devices, the bead intensity formed is very high to can achieve technical requirements, and is preparing bead
There is no the aforementioned drawbacks of the prior art in sub-processes.The present invention is completed based on above-mentioned discovery.
For realize foregoing purpose, the present invention provides a kind of methods for preparing bead seed, this method comprises: by powder with
Liquids contact, the mixture after contact obtain particulate matter through compression, the particulate matter are sieved, bead seed is obtained.
The present invention also provides a kind of methods of balling-up, this method comprises:
(1) bead seed is prepared；
(2) the bead seed is added in roller-ball devices and carries out roller forming；
Wherein, the method for preparing bead seed is carried out according to the aforementioned method.
By means of the present invention, the bead intensity obtained is high, and realizes continuous production, greatly improves production
Efficiency and the degree of automation, while operating environment has also obtained corresponding improvement.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The method for preparing bead seed provided by the invention includes: to contact powder with liquids, mixed after contact
It closes object and obtains particulate matter through compression, the particulate matter is sieved, bead seed is obtained.
According to the present invention, the bead seed refers to needs size uniform during roller forming, and has certain strong
The particle of degree, the particle are exactly bead seed.
Goal of the invention of the invention can be realized in preceding method according to the invention, in order to preferably realize hair of the invention
Improving eyesight, under preferable case, the dosage of liquids makes water content in the mixture after contact be 35-50 weight %.
In the present invention, when water content is lower than 35 weight % in the mixture after the dosage of liquids makes contact, fugitive dust
Phenomenon is obvious, and a certain amount of water is also required supplementation with during roller forming, to reduce working efficiency.
In the present invention, when water content is higher than 50 weight % in the mixture after the dosage of liquids makes contact, powder
It can be sticky, it may appear that paste net phenomenon, sieving are difficult.
Goal of the invention of the invention can be realized in preceding method according to the invention, in order to preferably realize hair of the invention
Improving eyesight, under preferable case, the dosage of liquids makes water content in the mixture after contact be 42-48 weight %.
Goal of the invention of the invention can be realized in preceding method according to the invention, in order to preferably realize hair of the invention
Improving eyesight, under preferable case, the dosage of liquids makes water content in the mixture after contact be 45-46 weight %.
In the present invention, the selectable range of the type of the liquids is wider, for example, water and/or binder etc., it can be real
The existing purpose of the present invention.For the present invention, under preferable case, the liquids are water.
The type of the binder can be the conventional selection of this field, such as can be silica solution, Aluminum sol etc..
In the present invention, the selectable range of the type of the powder is wider, this hair can be achieved in powder commonly used in the art
Bright purpose, for the present invention, under preferable case, the powder is one in molecular sieve, kaolin, bentonite and attapulgite
Kind is a variety of, particularly preferably one of kaolin and attapulgite or a variety of.Wherein, preferably when the powder is molecular sieve
When, it is also preferable to include one of kaolin, bentonite and attapulgites or a variety of for powder, and further preferably molecular sieve and high
One of ridge soil, bentonite and attapulgite or a variety of weight ratios are 1-8:1, preferably 3-5:1.
In the present invention, there is no special requirement to the partial size of the powder, as long as bead seed can be prepared as required i.e.
It can.For the present invention, under preferable case, the partial size of the powder is 10 μm or less.
In the present invention, preferably under stirring, the liquids is added with atomizing type and are contacted with the powder,
In, stirring refers to that powder stirs in dispersing apparatus.It is tiny that atomizing type refers to that liquids are generated by spray equipment
Drop, it is however generally that, in order to enable dispersity is preferable (being uniformly mixed) after the powder is mixed with atomized drop, the mist
The partial size for changing drop can be 0.1-500 μm.
In the present invention, atomizing sprayer jet atomization drop can be used to provide the required atomized drop of the present invention.
The atomizing sprayer can drench equipment, ultrasonic type sprinkling equipment, the continous way mixing with spray equipment for pressure-type spray
Machine or the kneader with spray equipment etc., atomizing sprayer can may be more spray heads for single nozzle, and the present invention is equal to this
Without particular/special requirement.
The dispersing apparatus can be dispersing apparatus well known in the art, generally with the equipment for stirring inner member, such as
Can be for kneader, mixer, double-cone mixer, trough type mixing machine or continuous mixing machine etc., wherein preferably kneader or
Continuous mixing machine.
In the present invention, it can be realized using compression device and the mixture after the contact is obtained into particulate matter through compression.
The compression device can be compression device well known in the art, can be by the mixing after the contact as long as general
Object compacting.Such as it can be for banded extruder, to tooth pelletizer, roller or roll extruding granulator etc..
It, can be using pressure sieving, such as oscillating granulator to the mixture after compression device is compacted in the present invention
Or rotating type granulating machine etc., wherein the oscillating granulator or rotating type granulating machine are equipped with the metal of corresponding mesh number as required
Wire mesh screens.
The condition that the present invention contacts the powder with the liquids is without particular/special requirement, as long as making of the invention described
Powder reach the present invention claims water content and be uniformly mixed.
The present invention also provides a kind of methods of balling-up, this method comprises: (1) prepares bead seed；
(2) the bead seed is added in roller-ball devices and carries out roller forming；Wherein, the method for bead seed is prepared
It is carried out according to the aforementioned method.
In the case of, according to the invention it is preferred to, the bead that is obtained using bead seed method of making of the invention it is average straight
Diameter is less than 2mm.
The present invention is described in detail below by specific embodiment, but the scope of the invention is not limited to this.
In example, strength detection method is shown in Chinese patent CN1261201C, indicates that percentage of damage is lower with the percentage of damage under 250N pressure, by force
Degree is better.
Embodiment 1
By molecular sieve powder that partial size is 10 μm of 80 weight % below, (NaY, water content are 20 weight %, and Sinopec urges
Asphalt in Shenli Refinery, agent Co., Ltd production) and 20 weight % kaolin powder (Linfen, Shanxi kaolin factory, water content be 20 weights
Amount %) it puts into the continuous mixing machine with spray head stir together, the spray head of continuous mixing machine is continuous during agitation
Spray water into powder, powder is prewetted from aqueous 20 weight % to 45 weight %, uniformly mixed powder is obtained.By the mixing
It is compacted powder in uniform powder investment banded extruder, particulate matter is obtained, obtained particulate matter is put into, 30 mesh mesh screens are installed
Oscillating granulator sieving, obtain partial size be the following bead seed of 30 mesh.This bead seed is put into granulating disc
Spin (is added to position due to preparing bead seed Shi Shuiyi, so the spin process is without adding water), grows up to partial size less than 1.2mm's
Bead, percentage of damage of the bead at 250N are 21%.
It during preparing catalyst seed, is put into the continuous mixing machine with spray head and is stirred due to powder, while stirring
Dynamic side water spray, so that the water content of powder does not have powder fugitive dust up to 45 weight %, operating environment is improved, whole process
There is no manual operation, labor intensity mitigates, realizes continuous production, greatly improve production efficiency.
Embodiment 2
It carries out preparing catalyst seed and balling-up according to the method for embodiment 1, unlike, all kaolin powder of powder
Material, the water content of powder is 48% after prewetting, and obtains the bead that partial size is less than 1.2mm.Since powder is full clay composition,
Intensity is higher, and percentage of damage of the bead at 250N is 5%.
Embodiment 3
It carries out preparing catalyst seed and balling-up according to the method for embodiment 1, unlike, all attapulgites of powder
Powder (Mingguang, anhui attapulgite factory, water content are 21 weight %), the water content of powder is 42% after prewetting, and it is small to obtain partial size
In the bead of 1.2mm.Since powder is full clay composition, intensity is higher, and percentage of damage of the bead at 250N is 8%.
Embodiment 4
It carries out preparing catalyst seed and balling-up according to the method for embodiment 1, unlike, the water content of powder after prewetting
It is 50%, obtains the bead that partial size is less than 1.2mm, percentage of damage of the bead at 250N is 23%.
Comparative example 1
By molecular sieve powder that partial size is 10 μm of 80 weight % below, (NaY, water content are 20 weight %, and Sinopec urges
Asphalt in Shenli Refinery, agent Co., Ltd production) and 20 weight % kaolin powder (Linfen, Shanxi kaolin factory, water content be 20 weights
Measure %) it puts into spin pot together, manual operation slowly rolls, and interval is sprayed water, and observes powder state, there is tiny gradually
Grain occurs, and when grain diameter reaches about 0.5mm, impeller ramming for a period of time, is then put into and is equipped with the swing of 30 mesh mesh screens
Granulator sieving, obtaining partial size is the following bead seed of 30 mesh.This bead seed is put into spin in granulating disc, is grown up to
Partial size is less than the bead of 1.2mm, and percentage of damage of the bead at 250N is 29%.
It is very high due to requiring manual operation during preparing catalyst seed, so speed of production is slow, low efficiency,
And spin pot mouth has powder fugitive dust, and operating environment is poor.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (6)
1. a kind of method for preparing bead seed, this method comprises: powder is contacted with liquids, the mixture after contact is through pressing
Contracting equipment is compressed to obtain particulate matter, and the particulate matter is sieved, and obtains bead seed, wherein the dosage of liquids to contact
Water content is higher than 45 weight % and is no more than 50 weight % in mixture afterwards, wherein the powder is contacted with liquids to be dispersed
It is carried out in equipment, the dispersing apparatus is in kneader, mixer, double-cone mixer, trough type mixing machine and continuous mixing machine
At least one, the compression device include banded extruder, to tooth pelletizer, roller and roll in extruding granulator at least one
Kind, wherein the powder is one of molecular sieve, kaolin, bentonite and attapulgite, alternatively, the powder is by kaolinite
One of soil, bentonite and attapulgite or a variety of and molecular sieve composition, wherein molecular sieve and kaolin, bentonite and
One of attapulgite or a variety of weight ratios are 1-8:1.
2. according to the method described in claim 1, wherein, the liquids are water and/or binder.
3. according to the method described in claim 2, wherein, the liquids are water.
4. according to the method described in claim 1, wherein, the partial size of the powder is 10 μm or less.
5. according to the method described in claim 1, wherein, this method comprises: under stirring, be added with atomizing type described in
Liquids are contacted with the powder.
6. a kind of method of balling-up, this method comprises:
(1) bead seed is prepared；
(2) the bead seed is added in roller-ball devices and carries out roller forming；
It is characterized in that, preparing bead seed according to method described in any one of claim 1-5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410743260.8A CN105727833B (en) | 2014-12-08 | 2014-12-08 | A method of preparing bead seed and balling-up |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410743260.8A CN105727833B (en) | 2014-12-08 | 2014-12-08 | A method of preparing bead seed and balling-up |
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| CN105727833A CN105727833A (en) | 2016-07-06 |
| CN105727833B true CN105727833B (en) | 2019-11-15 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268726A (en) * | 2016-08-29 | 2017-01-04 | 苏州双湖化工技术有限公司 | A kind of preparation method of high-purity alpha-alumina bead carrier |
| CN106861768A (en) * | 2017-02-23 | 2017-06-20 | 中石化炼化工程（集团）股份有限公司 | A kind of moving bed pellet catalyst and preparation method thereof |
| CN106824254A (en) * | 2017-03-01 | 2017-06-13 | 中石化炼化工程（集团）股份有限公司 | A kind of special-shaped catalyst supporter and preparation method and application |
| CN109482143B (en) * | 2017-09-13 | 2022-05-24 | 正大能源材料(大连)有限公司 | Adsorbent for purifying low-carbon olefin and preparation and application thereof |
| CN110237771A (en) * | 2019-06-28 | 2019-09-17 | 上海化工研究院有限公司 | A kind of preparation method of ball-type molecular sieve |
| CN110639409A (en) * | 2019-09-17 | 2020-01-03 | 清华大学 | Method and device for preparing homogeneous catalyst slurry with controllable concentration |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0488199A1 (en) * | 1990-11-27 | 1992-06-03 | ENICHEM AGRICOLTURA S.p.A. | Process for granulating potassium salts |
| CN102274703A (en) * | 2011-05-31 | 2011-12-14 | 山东奥诺能源科技有限公司 | Large-scale continuous energy-saving fluidized bed spraying, granulating and drying process |
| CN103071470A (en) * | 2011-10-25 | 2013-05-01 | 中国石油化工股份有限公司 | Absorbent pelletizing method |
-
2014
- 2014-12-08 CN CN201410743260.8A patent/CN105727833B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0488199A1 (en) * | 1990-11-27 | 1992-06-03 | ENICHEM AGRICOLTURA S.p.A. | Process for granulating potassium salts |
| CN102274703A (en) * | 2011-05-31 | 2011-12-14 | 山东奥诺能源科技有限公司 | Large-scale continuous energy-saving fluidized bed spraying, granulating and drying process |
| CN103071470A (en) * | 2011-10-25 | 2013-05-01 | 中国石油化工股份有限公司 | Absorbent pelletizing method |
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