CN104826380B - Thoroughly solid-liquid separation technique in the production of humic acid product - Google Patents
Thoroughly solid-liquid separation technique in the production of humic acid product Download PDFInfo
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- CN104826380B CN104826380B CN201510189625.1A CN201510189625A CN104826380B CN 104826380 B CN104826380 B CN 104826380B CN 201510189625 A CN201510189625 A CN 201510189625A CN 104826380 B CN104826380 B CN 104826380B
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Abstract
A kind of preparation method of humic-acid kind product, is the innovation on fabricating technology, in order to solves the halfway problem of separation of solid and liquid that presently, there are.Using screening or settle with filtering the method being combined, from rational equipment or designed, designed novel device, reached purpose.The present invention has the following advantages：Improve dissolution rate and save raw material；Improve the content of water-insoluble in mother liquid concentration；Humic acid entrained by recyclable filter residue etc..
Description
Art
The present invention is separation of solid and liquid in being prepared on the process for producing technology of various humic acid products, especially mother liquor
The innovation of technology.
Background technology
Humic acid can be used for producing cement water reducing agent, coal water mixture stabilizing agent, green due to its unique physicochemical properties
The products such as color liquid fertilizer, highly effective pesticide, cosmetics and medicine.
Humic acid belongs to a small branch of coal chemical technology, and market scale and practitioner are shared by coal chemical technology
Ratio is little, so the development of production Technology is relatively slow, currently there are no into ripe and sizing stage, Ke Yichuan
New improved space is very big.
Various humic acid products are produced to first have to prepare humic acid basic product, humic acid basic product preparation process Datong District
Small difference：The humic acid in raw material is extracted into dissolution with appropriate solvent, raw material residue is obtained and humic acid solution mixes one
Suspension；Solid residue is separated from suspension and produces humic acid mother liquor；Mother liquor is concentrated, dries to obtain the production of humic acid basis
Product.Problems are there are in fact during being somebody's turn to do, such as separation of solid and liquid is exactly a problem.
The best number of working as of solid-liquid separation effect filters, but the filtering equipment shaped is it is difficult to competent.The plate and frame filter press of routine,
Centrifugal filter etc. is proved to invalid in the production technology of reality：Mother liquor passes through filter cloth quickly at the beginning of filtering, equally
Meeting quickly forms residual filter cake, and mother liquor is just become extremely difficult to through the rate of filtration just substantially reduces, because this residual filter cake is special
It is unique close.
Solid-liquid filtration separation is unworkable, have to have to take the second best in the industry：Solid-liquid sedimentation separation, it is divided into two kinds at present, centrifugation
Sedimentation and natural subsidence.
Centrifugal sedimentation equipment is widely used in the industry in humic acid at present, more ripe.The inspection target of solid-liquid separation effect
It is the water insoluble solids thing remained in mother liquor, the method water insoluble solids thing general 10% or so, best level also only has 5%；
As for the method for natural subsidence, as long as the big time length in place, theoretic separating effect are not less than centrifugal sedimentation,
Because the latter has a limited centrifugation of centrifugation time will not thoroughly bottleneck.After the layering of natural subsidence solid-liquid, upper aqueous phase removes,
Bottom solid phase leaves, but solid-liquid two-phase interface obscures, it is difficult to which separation is thorough, has slag in band liquid, liquid in unavoidable slag.That is from
So the possible water insoluble matter content of sedimentation reaches 5%, but the yield of mother liquor is relatively low.
Water insoluble matter content more than 5%, it is exactly level current in the industry.Product of the water insoluble matter content below 1%, price is very
Height, but can be with volume shipment without producer.
Obviously, product of the water insoluble matter content below 1% is produced, the outlet of separation of solid and liquid is still to filter, many institute's weeks
Know, filtering certainly most thoroughly method.
The content of the invention
The invention aims to solve separation of solid and liquid problem as described above with the method for filtering.
The total design of the present invention is：It is as far as possible more that larger particles residue is separated with the method beyond filtering then right
Few fines residue is filtered as far as possible.Essence is that residue is grouped by grain graininess, by breaking the whole up into parts, is alleviated
The treating capacity of operation is filtered, reduces the difficulty of the super operation of filtering.
Humic acid in raw material is real to need with filtering just by residue remaining after extracting dissolution, granule size
The fines that can be separated are minority.So filter cloth overall time should not be used to filter residue；And should be first
Most coarse granule in residue is accounted for separate from mother liquor, then the fines filter cloth of few some residual from mother liquor mistake
Filter separates.
Pretreatment before filtering brings 2 advantages.Screening reduces filtering residue treatment amount, has postponed the formation of filter cake, drops
The low thickness of filter cake so that it is filter cloth to filter main resistance, known in the industry, and mother liquor is had no problem by filter cloth（Pass through filter
Cake is just had any problem）；Practical operation proves that filtering rate increases after pretreatment, it may be possible to due to remaining fines granularity phase
To concentrating, the compactness of filter cake than before sieving during granule size difference it is small.
Total design of the present invention is realized by following concrete technical scheme.
Most coarse granule separates from mother liquor in residue, can be successively with the filter screen of different pore size from big to small residual
Coarse granule in slag sifts out in batches from mother liquor.Coarse granule is soaked in the liquid phase, disperses suspended state, and coarse grain has been stayed in sieve,
Fine granularity is separated through sieve aperture.The selection of remaining filtering technique and equipment is with regard to relatively simple.
Also the quick centrifugal separator of cyclone, tubular type can be used to carry out centrifugal classification, separated step by step.Finally refilter.
Compared to the prior art the had clear advantage of the present invention and good effect.Water insoluble matter content 1% can be obtained
Following product；Because separating effect is thorough, residue can be washed, reclaim the humic acid of son's wife on residue.This 2 points
All it is that current sedimentation separation technique is unapproachable.
Embodiment
Embodiment 1
The raw materials used anthracite for Shanxi city deeply weathered, after extractive reaction, to below obtained 60 mesh
The suspension that residue and mother liquor mix, first sieve and filter afterwards.
From horizontal centrifugal dewatering screen, three are used in series, and screen cloth fineness is 80 mesh, 120 mesh, 200 mesh respectively successively.Point
60 to 80 mesh, 80 to 120 mesh, the particulate debris of 120 to 200 three granularity groups of mesh can not isolated, residue is unloaded going out sieve
They are washed with hot water before material, reclaims a considerable number of humic acid, the washings of the humic acid containing recovery send reactor, are used for
Extract weathered coal raw material（One of outstanding advantage of this programme）.After centrifugal dehydration, remaining granularity is narrower than the residue and mother liquor of 200 mesh
The suspension mixed, from the horizontal centrifugal filter with scraper, filter screen density is according to raw material condition and product requirement
Selection.
Embodiment 2
Process object is with embodiment 1, suspension that the following residue of 60 mesh of processing and mother liquor mix, first sieve after
Filter.
Sieve is the combination sieve of designed, designed, by the different Circular-cylinder sieve of the axle center overlap length same diameter being nested together
Net and collecting vessel composition.Screen cloth axis is disposed vertically, and tubular screen cloth is at least one layer of, and three layers here, diameter is 1 respectively from inside to outside
Rice, 1.5 meters, 2 meters.2.5 meters of collecting vessel external diameter, whole screen cloth is entangled, top can be open, the necessary back cover in bottom, bottom surface difference
It is connected with the bottom of three layers of tubular screen cloth, the space in collecting vessel is divided into four parts, collects 60 to 80 mesh, 80 to 120 respectively
Mesh, 120 to 200 three granularity groups of mesh particulate debris, also have granularity to be narrower than the residue of 200 mesh and mother liquor mixes
Suspension.
Collecting bottom of the barrel has four discharge ports, there is Valve controlling.First draw off residue and mother liquor mixing that granularity is narrower than 200 mesh
Suspension together, the horizontal centrifugal filter with scraper or the filtering of other filters are sent to, then unload of three granularity groups
Granular residue.Washing, washing and discharging are combined with hot water during residue discharging, cleaning solution and residue are drawn off together, respective
Settling tank sedimentation（Sedimentation now is faster than mother liquor）, quantity humic acid is reclaimed, the cleaning solution of the humic acid containing recovery send reactor,
For extracting weathered coal raw material.
During collecting vessel upper opening, fork-shaped agitating device, top drive can be installed, each bifurcated filters to three respectively
Space is stirred simultaneously, with intensive filtration process.Collecting bottom of the barrel can also make inclined, and discharging opening is placed on low one
End, is easy to discharge.
Embodiment 3
Process object is with embodiment 1, suspension that the following residue of 60 mesh of processing and mother liquor mix, first sieve after
Filter.
Suspension is pumped into polyurethane cyclone with slush pump（Particle size separation type）, by the larger residue particles of granularity from underflow
Separate, top apoblema is the suspension that residue and mother liquor mix.Remaining processing is same as embodiment 2.
Embodiment 4
Cyclone in embodiment 3, it can also be replaced with horizontal screw centrifugal settler, remaining is constant.
Embodiment 5
Cyclone in embodiment 3, it can also be replaced with quick tube centrifuge, remaining is constant.
Claims (1)
- A kind of 1. method of the production of humic acid, it is characterised in that：Larger particles residue is separated with screening plant, then used Filter plant is filtered, and described screening plant sieves for combination, different by the axle center overlap length same diameter being nested together Cylindrical screen and collecting vessel composition；Screen cloth axis is disposed vertically, three layers of tubular screen cloth, diameter is 1 meter respectively from inside to outside, 1.5 meters, 2 meters；2.5 meters of collecting vessel external diameter, entangles whole screen cloth, upper opening, bottom back cover, bottom surface respectively with three layers of cylindrical sieve Space in collecting vessel, is divided into four parts, collects 60 to 80 mesh, 80 to 120 mesh, 120 to 200 mesh respectively by the bottom linking of net The particulate debris of three granularity groups, there is granularity to be narrower than the suspension that the residue of 200 mesh and mother liquor mix；Collecting bottom of the barrel has four discharge ports, has Valve controlling, first draws off that granularity is narrower than the residue of 200 mesh and mother liquor is blended in one The suspension risen, the horizontal centrifugal filter with scraper or the filtering of other filters are sent to, then unload the graininess of three granularity groups Residue；Hot wash during residue discharging, washing and discharging are combined, and cleaning solution and residue are drawn off together, in respective sedimentation Pond settles, and reclaims humic acid, and the cleaning solution of the humic acid containing recovery send reactor, for extracting weathered coal raw material；During collecting vessel upper opening, install fork-shaped agitating device, top drive, each bifurcated respectively to three filter spaces simultaneously It is stirred, with intensive filtration process；Collect bottom of the barrel and make inclined, discharging opening is placed on low one end, is easy to discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510189625.1A CN104826380B (en) | 2015-04-21 | 2015-04-21 | Thoroughly solid-liquid separation technique in the production of humic acid product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510189625.1A CN104826380B (en) | 2015-04-21 | 2015-04-21 | Thoroughly solid-liquid separation technique in the production of humic acid product |
Publications (2)
| Publication Number | Publication Date |
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| CN104826380A CN104826380A (en) | 2015-08-12 |
| CN104826380B true CN104826380B (en) | 2018-03-23 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4459149A (en) * | 1982-09-24 | 1984-07-10 | Moran Edward F | Process for treating humus materials |
| DE3707909A1 (en) * | 1987-03-12 | 1988-09-22 | Ruetgerswerke Ag | LOW MOLECULAR ALKALIHUMINATES, METHOD FOR THE PRODUCTION AND USE THEREOF |
| CN1837263A (en) * | 2006-02-28 | 2006-09-27 | 陈海静 | Process for preparing sodium humate by using coal |
| CN101033241B (en) * | 2007-04-29 | 2010-06-16 | 晋城市炬坤生物科技有限公司 | Method of preparing high-purity humic acid |
| KR20120108816A (en) * | 2011-03-25 | 2012-10-05 | 허교 | Extacting method for humic acid and fulvic acid from humic substances |
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2015
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Effective date of registration: 20180214 Address after: 031300 Shanxi city of Jinzhong province Lingshi County Cui Feng Zhen Village garlic Applicant after: SHANXI GUANG YUTONG TECHNOLOGY CO., LTD. Address before: Wang Yu Xiang 031307 Shanxi city of Jinzhong province Lingshi county Wang Yucun No. 099 Applicant before: Li Jishuang |
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