CN103215181A - Internal and external sealing treatment method for biogas digester - Google Patents
Internal and external sealing treatment method for biogas digester Download PDFInfo
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- CN103215181A CN103215181A CN2013101336975A CN201310133697A CN103215181A CN 103215181 A CN103215181 A CN 103215181A CN 2013101336975 A CN2013101336975 A CN 2013101336975A CN 201310133697 A CN201310133697 A CN 201310133697A CN 103215181 A CN103215181 A CN 103215181A
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- 238000000034 method Methods 0.000 title claims abstract description 89
- 238000007789 sealing Methods 0.000 title claims abstract description 30
- 239000004568 cement Substances 0.000 claims abstract description 102
- 239000004576 sand Substances 0.000 claims abstract description 90
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 83
- 230000001680 brushing effect Effects 0.000 claims description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 65
- 238000005538 encapsulation Methods 0.000 claims description 50
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 29
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 29
- 239000004571 lime Substances 0.000 claims description 29
- 239000004927 clay Substances 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 11
- 239000004567 concrete Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 4
- 238000007580 dry-mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000003469 silicate cement Substances 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 9
- 238000000576 coating method Methods 0.000 abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 5
- 239000002028 Biomass Substances 0.000 description 4
- 239000013065 commercial product Substances 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002956 ash Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/20—Material Coatings
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention relates to an internal and external sealing treatment method for biogas digesters. The method comprises the following steps of: carrying out sealing treatment on the interior of a biogas digester body, externally sealing the outer wall of the biogas digester within a width range of 20cm below the vault and the arch angles when the biogas digester is sealed, and sealing by adopting three-layer coating, wherein cement sand mortar is adopted for coating of the first layer, and the coating thickness is 1-1.5cm; cement sand mortar is adopted for coating of the second layer, and the coating thickness is 0.4-0.6cm; and plain mortar is adopted for coating of the third layer, the outer wall is coated for three times in all, the outer wall is horizontally coated for the first time, vertically coated for the second time and horizontally coated for the third time, and the coating thickness is 0.1cm for each time. By method adopts a treatment method that the internal sealing and the external sealing are combined, the limit of conventional single internal sealing is changed, so that the method is not only applicable to a newly constructed biogas digester, but also is applicable to repairing of an old biogas digester; the method is simple and practical; and the sealing capability of the biogas digester is ensured, the problem that methane leaks from the biogas digester in the use process is avoided, the repairing rate of the biogas digester is reduced, and the service life of the biogas digester is prolonged.
Description
Technical field
The present invention relates to the inside and outside encapsulation process method of a kind of methane-generating pit, belong to the technical field of biogas energy.
Background technology
Along with the popularization of China's biogas science and technology development and rural area household biogas, vast rural households have all built methane-generating pit.Methane-generating pit for farm household mainly adopts hydraulic type biomass pool, adopt material of construction such as concrete, brick, stone mostly, these material structures all have a considerable amount of fine pores that vary in size, and the most right and wrong closure of these holes, the methane-generating pit inwall of swabbing even multilayer is plastered, its sand-cement slurry sealing ply also exist many greater than the hole of molecular diameter of methane 3.76 dusts more than four times.Under certain biogas pressure, biogas is easy to go out by these hole seepages, and along with the growth of duration of service of methane-generating pit, pool wall because of chap, scratching, coat of plaster stick up shell or peel off, reasons such as airway and concrete junction eakiness, methane-generating pit is gas leakage easily also.
Chinese patent literature CN1273552C(02158269.6) a kind of methane-generating pit antiseep coating and preparation method and methane-generating pit surface anti-seepage drain process method are disclosed, 1. earlier with the thermoplastic of methane-generating pit antiseep coating, with 3～6 times water it is diluted, it is standby to make diluent again; 2. an amount of diluent of adding in cement adds an amount of water again after the stirring, is made into the lixivium weight ratio and is: 1: the cement seal slurry of (0.5～0.65); 3. whitewash 2～6 times on the methane-generating pit surface with the cement seal slurry for preparing.The present invention adopts the method for macromolecule filming material and cement fusion brushing, has improved the corrosion resistant performance on methane-generating pit surface, has prolonged the life-span of methane-generating pit, no longer maintenance, thereby fundamentally solved the methane-generating pit sealing and corroded two hang-ups.Can change the sealing brushing technique of methane-generating pit " three ashes, four slurries " into " ash four slurries ", save cement building material.Be mainly used in the methane-generating pit, anaerobic digester, the seepage that prevents gas and water of town sewage treating pond and the corrosion resistance nature of raising pool wall thereof that adopt cement constructional material to build.Can also be applied to water tower, pond, the water cellar of building field, the antiseep of toilet.But this methane-generating pit surface anti-seepage drain process method still exists seepage defect to a certain degree, seepage treatment poor effect.
Summary of the invention
At the deficiencies in the prior art, the invention provides the inside and outside encapsulation process method of a kind of methane-generating pit.
The present invention builds with conventional hydraulic type biomass pool aspect building biomass pool, and the method for the sealing that combines inside and outside encapsulation process adopts has changed the way of only doing interior encapsulation process in the past.
The present invention is suitable for dissimilar methane-generating pits, is specially adapted to the encapsulation process of hydraulic type biomass pool.
The term explanation:
Removable cover: refer to be used to seal the closing cap of methane-generating pit Chi Kou, can open and take off.The effect of removable cover mainly contains 3 points: the first, and be installed in methane-generating pit Chi Kou and be used to seal methane-generating pit; The second, removable cover can freely take off and install, and makes things convenient for the staff to pass in and out methane-generating pit; The 3rd, because removable cover can freely take off, when methane-generating pit pond internal pressure was big, pressure can back down relief pressure with removable cover, thereby had prevented the destruction of big pressure to methane-generating pit pond body.
Technical scheme of the present invention is as follows:
The inside and outside encapsulation process method of a kind of methane-generating pit raw materials usedly is: cement, Sha Heshui, and described grains of sand footpath≤4mm, earth content in the described sand≤3% is husky heavy, and mica content in the described sand≤0.5% is husky heavy, and (sulfide+vitriol) content in the described sand≤1% is husky to be weighed; Step is as follows:
After body inside, methane-generating pit pond carried out encapsulation process, when the sealing methane-generating pit, the external wall in methane-generating pit pond of the following 20cm width range in methane-generating pit vault place and arch angle is carried out outside seal and handles, adopts 3 layers of brushing encapsulation process, be specially:
Brush with the cement sand mortar for the 1st layer, described cement sand mortar is with cement: sand: water=1: 2.5:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 1～1.5cm;
Brush with the cement sand mortar for the 2nd layer, described cement sand mortar is with cement: sand: water=1: 1:0.5 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.4～0.6cm;
The plain mortar of the 3rd layer of usefulness is brushed, and described plain mortar is with cement: water=2～3:1 mixes and mixes all by mass ratio and makes, and brushes altogether 3 times, and the 1st time level is brushed, and vertically brushes for the 2nd time, and the 3rd time level is brushed; Each is 4～8h all over brushing the timed interval, and every is 0.1cm all over brushing thickness.
According to the present invention, preferred, described cement is No. 425 silicate cements.
According to the present invention, preferred, the 3rd layer of used sand particle diameter was 2～3mm during described methane-generating pit outside seal was handled.
Methane-generating pit seal inside of the present invention is handled and is adopted prior art to get final product, and preferred, the seal inside treatment step is as follows:
Partly adopt 7 layers to brush encapsulation process at methane-generating pit vault, opening for feed, be specially:
Brush with the cement sand mortar for the 1st layer, have blistered place will brush more in the brushing process 1 time, described cement sand mortar is with cement: sand: water=0.3: 1:0.2 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.3cm;
Brush with the cement sand mortar for the 2nd layer, described cement sand mortar is with cement: sand: water=1: 2.5:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.3～0.5cm;
The plain mortar of the 3rd layer of usefulness is brushed, and described plain mortar is with cement: water=2～3:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.1cm;
Brush and screeding and compaction with the cement sand mortar for the 4th layer, described cement sand mortar is with cement: sand: water=1: 2:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.4cm;
The plain mortar of the 5th layer of usefulness is brushed, and described plain mortar is with cement: water=2～3:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.1cm;
Brush with the cement sand mortar for the 6th layer, described cement sand mortar is with cement: sand: water=1: 1:0.5 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.3～0.4cm;
The plain mortar of the 7th layer of usefulness is brushed, and described plain mortar is with cement: water=2～3:1 mixes and mixes all by mass ratio and makes, and brushes altogether 3 times, and the 1st time level is brushed, and vertically brushes for the 2nd time, and the 3rd time level is brushed; Each is 4～8h all over brushing the timed interval; Every is 0.1cm all over brushing thickness;
At the bottom of the methane-generating pit pond, methane-generating pit pond inwall and discharge port partly adopt 3 layers to brush encapsulation process, be specially: the 1st layer identical with 7 layers of the 2nd layer of way of brushing in the encapsulation process, the 2nd layer with 7 layers brush in the encapsulation process in the 6th layer of way identical, the 3rd layer is identical with the 7th layer of way in 7 layers of brushing encapsulation process.
According to the present invention, preferred, the 6th layer of used sand particle diameter was 2～3mm during described methane-generating pit seal inside was handled.
According to the present invention, preferred, 7 layers of each layer timed interval of brushing encapsulation process were 2～4h during described methane-generating pit seal inside was handled.
According to the present invention, preferred, comprise that also concrete steps are as follows to the encapsulation process process of methane-generating pit pond mouth removable cover:
(1) clay is pulverized, cross 100 mesh sieves after, even with the lime powder dry mixing of crossing 60 mesh sieves, add water and mix and stir and rub into the dough shape, the lime clay, described clay: lime powder: water=1:0.5:0.5, mass ratio;
(2) the lime clay is spread upon on the surface of removable cover equably, the control smearing thickness is 1～2.5cm, removable cover is contained on the lime clay again, steps on tightly to make it to combine closely, and adds water planting again and protects, then with removable cover sealing methane-generating pit Chi Kou; Described cultivating and looking after is meant on the removable cover that is coated with the lime clay water spray and dries naturally, makes water and lime clay fully permeate the increase stopping property; The preferred mode of cultivating and looking after is to spray a water, continuous two days in fine per 3～5 hours on the removable cover that is coated with the lime clay.
It is as follows that the inventive method and existing sealing means are compared excellent results:
1, the treatment process that outer gland sealing combined in the present invention adopted changes the conventional single interior limitation that seals, and not only is applicable to newly-built methane-generating pit, also is applicable to the reparation of old methane-generating pit, and method is simple and practical.
2, the present invention has guaranteed the stopping property of methane-generating pit, has avoided the gas leakage problem in the methane-generating pit use, has reduced the maintenance probability of methane-generating pit, increases the service life.
3, treatment process of the present invention is simple, does not increase complicated procedures of forming, once sealing, and saving of work and time is easy to promote.
4, the present invention increases outer gland sealing and handles, and also can play the effect that methane-generating pit is reinforced, and has increased the bearing capacity of methane-generating pit, makes the convenient safety of terrestrial operation simultaneously.
5, the present invention can improve the biogas utilization rate and the success ratio of methane-generating pit greatly, can promote ecological circulation economy and Sustainable development, is easy to apply.
Description of drawings
Fig. 1 is the structural representation of methane-generating pit of the present invention, and black line partly is a sealing area; Wherein, 1, removable cover, 2, the methane-generating pit vault, 3, methane-generating pit arch angle, 4, methane-generating pit pond inwall, 5, at the bottom of the methane-generating pit pond, 6, discharge port, 7, opening for feed.
Embodiment
Below by specific embodiment and in conjunction with the present invention will be further described, but be not limited thereto.
Used cement is No. 425 silicate cements among the embodiment, commercial product, and Handan City trade Co., Ltd of peak-to-peak will nation is on sale;
Used clay is conventional commercial product, and oily clay company limited is on sale in Qinyang City;
Used lime powder is the routine building lime powder, commercial product, and Luoding City hat power lime powder factory is on sale.
Embodiment 1,
The inside and outside encapsulation process method of a kind of methane-generating pit, step is as follows:
(1) methane-generating pit pond body seal inside
Partly adopt 7 layers to brush encapsulation process at methane-generating pit vault, opening for feed, be specially:
Brush with the cement sand mortar for the 1st layer, have blistered place will brush more in the brushing process 1 time, described cement sand mortar is with cement: sand: water=0.3: 1:0.2 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.3cm;
Brush with the cement sand mortar for the 2nd layer, described cement sand mortar is with cement: sand: water=1: 2.5:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.3cm;
The plain mortar of the 3rd layer of usefulness is brushed, and described plain mortar is with cement, and: water=2:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.1cm;
Brush and screeding and compaction with the cement sand mortar for the 4th layer, described cement sand mortar is with cement: sand: water=1: 2:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.4cm;
The plain mortar of the 5th layer of usefulness is brushed, and described plain mortar is with cement, and: water=2:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.1cm;
Brush with the cement sand mortar for the 6th layer, described cement sand mortar is with cement: sand: water=1: 1:0.5 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.3cm;
The plain mortar of the 7th layer of usefulness is brushed, and described plain mortar is with cement, and: water=2:1 mixes and mixes all by mass ratio and makes, and brushes altogether 3 times, and the 1st time level is brushed, and vertically brushes for the 2nd time, and the 3rd time level is brushed; Each is 4h all over brushing the timed interval; Every is 0.1cm all over brushing thickness;
At the bottom of the methane-generating pit pond, methane-generating pit pond inwall and discharge port partly adopt 3 layers to brush encapsulation process, be specially: the 1st layer identical with 7 layers of the 2nd layer of way of brushing in the encapsulation process, the 2nd layer with 7 layers brush in the encapsulation process in the 6th layer of way identical, the 3rd layer is identical with the 7th layer of way in 7 layers of brushing encapsulation process;
(2) methane-generating pit pond external body sealing
After above-mentioned seal inside was handled, the external wall in pond to the following 20cm width range in methane-generating pit vault place and arch angle when the sealing methane-generating pit carried out the outer gland sealing processing, adopts 3 layers to brush encapsulation process, is specially:
Brush with the cement sand mortar for the 1st layer, floating applied, press polish, described cement sand mortar is with cement: sand: water=1: 2.5:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 1cm;
Brush with the cement sand mortar for the 2nd layer, described cement sand mortar is with cement: sand: water=1: 1:0.5 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.4cm;
The plain mortar of the 3rd layer of usefulness is brushed, and described plain mortar is with cement, and: water=2:1 mixes and mixes all by mass ratio and makes, and brushes altogether 3 times, and the 1st time level is brushed, and vertically brushes for the 2nd time, and the 3rd time level is brushed; Each is 4h all over brushing the timed interval; Every is 0.1cm all over brushing thickness.
(1) methane-generating pit pond body seal inside
Partly adopt 7 layers to brush encapsulation process at methane-generating pit vault, opening for feed, be specially:
Brush with the cement sand mortar for the 1st layer, have blistered place will brush more in the brushing process 1 time, described cement sand mortar is with cement: sand: water=0.3: 1:0.2 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.3cm;
Brush with the cement sand mortar for the 2nd layer, described cement sand mortar is with cement: sand: water=1: 2.5:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.5cm;
The plain mortar of the 3rd layer of usefulness is brushed, and described plain mortar is with cement, and: water=3:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.1cm;
Brush and screeding and compaction with the cement sand mortar for the 4th layer, described cement sand mortar is with cement: sand: water=1: 2:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.4cm;
The plain mortar of the 5th layer of usefulness is brushed, and described plain mortar is with cement, and: water=3:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.1cm;
Brush with the cement sand mortar for the 6th layer, described cement sand mortar is with cement: sand: water=1: 1:0.5 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.4cm;
The plain mortar of the 7th layer of usefulness is brushed, and described plain mortar is with cement, and: water=3:1 mixes and mixes all by mass ratio and makes, and brushes altogether 3 times, and the 1st time level is brushed, and vertically brushes for the 2nd time, and the 3rd time level is brushed; Each is 8h all over brushing the timed interval; Every is 0.1cm all over brushing thickness;
At the bottom of the methane-generating pit pond, methane-generating pit pond inwall and discharge port partly adopt 3 layers to brush encapsulation process, be specially: the 1st layer identical with 7 layers of the 2nd layer of way of brushing in the encapsulation process, the 2nd layer with 7 layers brush in the encapsulation process in the 6th layer of way identical, the 3rd layer is identical with the 7th layer of way in 7 layers of brushing encapsulation process;
(2) methane-generating pit pond external body sealing
After above-mentioned seal inside was handled, the external wall in pond to the following 20cm width range in methane-generating pit vault place and arch angle when the sealing methane-generating pit carried out the outer gland sealing processing, adopts 3 layers to brush encapsulation process, is specially:
Brush with the cement sand mortar for the 1st layer, floating applied, press polish, described cement sand mortar is with cement: sand: water=1: 2.5:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 1.5cm;
Brush with the cement sand mortar for the 2nd layer, described cement sand mortar is with cement: sand: water=1: 1:0.5 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.6cm;
The plain mortar of the 3rd layer of usefulness is brushed, and described plain mortar is with cement, and: water=3:1 mixes and mixes all by mass ratio and makes, and brushes altogether 3 times, and the 1st time level is brushed, and vertically brushes for the 2nd time, and the 3rd time level is brushed; Each is 8h all over brushing the timed interval; Every is 0.1cm all over brushing thickness.
Embodiment 3,
The inside and outside encapsulation process method of a kind of methane-generating pit, step is with embodiment 1, and different is the encapsulation process process that also comprises methane-generating pit pond mouth removable cover, and concrete steps are as follows:
(1) clay is pulverized, cross 100 mesh sieves after, even with the lime powder dry mixing of crossing 60 mesh sieves, add water and mix and stir and rub into the dough shape, the lime clay, described clay: lime powder: water=1:0.5:0.5, mass ratio;
(2) the lime clay is spread upon on the surface of removable cover equably, the control smearing thickness is 1cm, removable cover is contained on the lime clay again, step on and tightly make it to combine closely, add water planting again and protect (water of spray in fine per 5 hours, continuous two days), then with removable cover sealing methane-generating pit Chi Kou.
Embodiment 4,
The inside and outside encapsulation process method of a kind of methane-generating pit, step is with embodiment 1, and different is the encapsulation process process that also comprises methane-generating pit pond mouth removable cover, and concrete steps are as follows:
(1) clay is pulverized, cross 100 mesh sieves after, even with the lime powder dry mixing of crossing 60 mesh sieves, add water and mix and stir and rub into the dough shape, the lime clay, described clay: lime powder: water=1:0.5:0.5, mass ratio;
(2) the lime clay is spread upon on the surface of removable cover equably, the control smearing thickness is 2.5cm, removable cover is contained on the lime clay again, step on and tightly make it to combine closely, add water planting again and protect (water of spray in fine per 3 hours, continuous two days), then with removable cover sealing methane-generating pit Chi Kou.
Claims (8)
1. the inside and outside encapsulation process method of a methane-generating pit, raw materials usedly be: cement, Sha Heshui, described grains of sand footpath≤4mm, earth content in the described sand≤3% is husky heavy, mica content in the described sand≤0.5% is husky heavy, and sulfide and vitriol total content in the described sand≤1% is husky heavy; It is characterized in that step is as follows:
After body inside, methane-generating pit pond carried out encapsulation process, when the sealing methane-generating pit, the external wall in methane-generating pit pond of the following 20cm width range in methane-generating pit vault place and arch angle is carried out outside seal and handles, adopts 3 layers of brushing encapsulation process, be specially:
Brush with the cement sand mortar for the 1st layer, described cement sand mortar is with cement: sand: water=1: 2.5:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 1～1.5cm;
Brush with the cement sand mortar for the 2nd layer, described cement sand mortar is with cement: sand: water=1: 1:0.5 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.4～0.6cm;
The plain mortar of the 3rd layer of usefulness is brushed, and described plain mortar is with cement: water=2～3:1 mixes and mixes all by mass ratio and makes, and brushes altogether 3 times, and the 1st time level is brushed, and vertically brushes for the 2nd time, and the 3rd time level is brushed; Each is 4～8h all over brushing the timed interval, and every is 0.1cm all over brushing thickness.
2. the inside and outside encapsulation process method of methane-generating pit according to claim 1 is characterized in that described cement is No. 425 silicate cements.
3. the inside and outside encapsulation process method of methane-generating pit according to claim 1 is characterized in that the 3rd layer of used sand particle diameter was 2～3mm during described methane-generating pit outside seal was handled.
4. the inside and outside encapsulation process method of methane-generating pit according to claim 1 is characterized in that the seal inside treatment step is as follows:
Partly adopt 7 layers to brush encapsulation process at methane-generating pit vault, opening for feed, be specially:
Brush with the cement sand mortar for the 1st layer, have blistered place will brush more in the brushing process 1 time, described cement sand mortar is with cement: sand: water=0.3: 1:0.2 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.3cm;
Brush with the cement sand mortar for the 2nd layer, described cement sand mortar is with cement: sand: water=1: 2.5:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.3～0.5cm;
The plain mortar of the 3rd layer of usefulness is brushed, and described plain mortar is with cement: water=2～3:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.1cm;
Brush and screeding and compaction with the cement sand mortar for the 4th layer, described cement sand mortar is with cement: sand: water=1: 2:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.4cm;
The plain mortar of the 5th layer of usefulness is brushed, and described plain mortar is with cement: water=2～3:1 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.1cm;
Brush with the cement sand mortar for the 6th layer, described cement sand mortar is with cement: sand: water=1: 1:0.5 mixes and mixes all by mass ratio and makes, and brushing thickness is 0.3～0.4cm;
The plain mortar of the 7th layer of usefulness is brushed, and described plain mortar is with cement: water=2～3:1 mixes and mixes all by mass ratio and makes, and brushes altogether 3 times, and the 1st time level is brushed, and vertically brushes for the 2nd time, and the 3rd time level is brushed; Each is 4～8h all over brushing the timed interval; Every is 0.1cm all over brushing thickness;
At the bottom of the methane-generating pit pond, methane-generating pit pond inwall and discharge port partly adopt 3 layers to brush encapsulation process, be specially: the 1st layer identical with 7 layers of the 2nd layer of way of brushing in the encapsulation process, the 2nd layer with 7 layers brush in the encapsulation process in the 6th layer of way identical, the 3rd layer is identical with the 7th layer of way in 7 layers of brushing encapsulation process.
5. the inside and outside encapsulation process method of methane-generating pit according to claim 4 is characterized in that the 6th layer of used sand particle diameter was 2～3mm during described methane-generating pit seal inside was handled.
6. according to encapsulation process method inside and outside claim 4 or the 5 described methane-generating pits, it is characterized in that 7 layers of each layer timed interval of brushing encapsulation process were 2～4h during described methane-generating pit seal inside was handled.
7. according to encapsulation process method inside and outside claim 1 or the 4 described methane-generating pits, it is characterized in that, comprise that also concrete steps are as follows to the encapsulation process process of methane-generating pit pond mouth removable cover:
(1) clay is pulverized, cross 100 mesh sieves after, even with the lime powder dry mixing of crossing 60 mesh sieves, add water and mix and stir and rub into the dough shape, the lime clay, described clay: lime powder: water=1:0.5:0.5, mass ratio;
(2) the lime clay is spread upon on the surface of removable cover equably, the control smearing thickness is 1～2.5cm, removable cover is contained on the lime clay again, steps on tightly to make it to combine closely, and adds water planting again and protects, then with removable cover sealing methane-generating pit Chi Kou; Described cultivating and looking after is meant on the removable cover that is coated with the lime clay water spray and dries naturally, makes water and lime clay fully permeate the increase stopping property.
8. the inside and outside encapsulation process method of methane-generating pit according to claim 7 is characterized in that the mode of cultivating and looking after is: sprayed a water, continuous two days in fine per 3～5 hours on the removable cover that is coated with the lime clay.
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| CN107673664A (en) * | 2016-08-02 | 2018-02-09 | 陆超 | A kind of mortar processing method for preventing that leak is gentle |
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| CN103215181B (en) | 2014-07-23 |
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