CN105441315B - A kind of gas chamber of marsh gas tank builds encapsulation process method - Google Patents
A kind of gas chamber of marsh gas tank builds encapsulation process method Download PDFInfo
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- CN105441315B CN105441315B CN201511026186.9A CN201511026186A CN105441315B CN 105441315 B CN105441315 B CN 105441315B CN 201511026186 A CN201511026186 A CN 201511026186A CN 105441315 B CN105441315 B CN 105441315B
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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
- 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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- 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
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- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
Encapsulation process method is built the present invention relates to a kind of gas chamber of marsh gas tank, belong to agricultural environmental protection technical field, vast methane-generating pit for farm household is especially suitable for use, when actually building for different methane-generating pit positions, to vault, the air storage position of vault and the pool wall inwall in 20cm width ranges below pool wall junction carries out new interior sealing processing, puzzle after stock mould before biomass pool body air chamber is poured, take the successively laying building bed of material, concreting is carried out again, in combination with outside encapsulating method, sealing is higher, once build successful probability higher, saving of work and time, it is outdoor to be easy to operation, it is simple and feasible, cost is low, popularization easy to spread.
Description
Technical field
Encapsulation process method is built the present invention relates to a kind of gas chamber of marsh gas tank, belongs to agricultural environmental protection technical field.
Background technology
With the development and the popularization of rural household biogas of China's biogas science and technology, vast rural households all actively build
Methane-generating pit.Methane-generating pit for farm household mainly uses hydraulic type biomass pool, mostly using construction materials such as concrete, brick, stones, these
Material structure has a considerable amount of fine pores of different sizes, and these holes are non-closed mostly, even multilayer
Plaster the methane-generating pit inwall of swabbing, its cement mortar sealant is more than molecular diameter of methane 3.76 angstrom more than four times there is also many
Hole.Under certain biogas pressure, biogas is easy to go out by these hole seepages, causes air chamber gas leakage, Er Qiesui
The growth of the use time of methane-generating pit, pool wall sticks up shell or peeling, airway tube and concrete handing-over because of chap, scratching, coat of plaster
Locate the reasons, methane-generating pit also easy gas leakage such as leakiness.Simultaneously as processing, particularly hot summer in air chamber, indoor air temperature is too
Height, light difference is time-consuming, can ease for operation it is difficult, bring very big difficulty to construction.
Chinese patent document CN103215181A (application numbers：201310133697.5) disclose close inside and outside a kind of methane-generating pit
Seal processing method.Methane tank body inside is carried out after encapsulation process, when sealing methane-generating pit at methane-generating pit vault and arch angle
The methane tank body outer wall of following 20cm width ranges carries out outside sealing, is brushed and sealed using 3 layers, the 1st layer is used cement sand-lime
Slurry is brushed, and brushing thickness is 1~1.5cm；2nd layer is brushed with cement bonded sand mortar, and brushing thickness is 0.4~0.6cm；3rd layer of use
Plain mortar is brushed, and is brushed altogether 3 times, the 1st time level brushing, the 2nd time vertical brushing, the 3rd time level is brushed, every to be all over brushing thickness
0.1cm.The emphasis that this document is told about is external seal method, and three-layer sealed method is used to outside in conventional foundation construction, to
More sealed effect is reached, what early stage was used to methane-generating pit inside is still conventional inner seal method.
Chinese patent document CN101633888A (application numbers：200910015485.0), disclose a kind of methane-generating pit sealing
And the preparation method of gasket coating, it is main seal raw material, the curing agent system of formulated proper proportion by dion unsaturated resin
Into gasket coating, glass fibre is sticked after brushing one layer of gasket coating on pool wall, then brush last layer gasket coating again, it is natural
Curing molding, completes seal operation.This document is main tired using polyester unsaturated-resin and glass fibre as operation in raw material, and pond
Difficulty, cost is high, and layer of glass sealing is poor.
The content of the invention
In view of the shortcomings of the prior art, for the ease of building and preventing the gas leakage of methane-generating pit, the invention provides a kind of new
Type gas chamber of marsh gas tank builds encapsulation process method.The method can effectively prevent the leakage problem of methane-generating pit, and save labor,
It is easy to operation, it is ensured that the sealing and practicality of methane-generating pit, by actual use proof, the sealing of the method methane-generating pit can
It is operability, practical up to 100%.
Technical scheme is as follows：
A kind of gas chamber of marsh gas tank builds encapsulation process method, and methane-generating pit includes bottom of pond, pool wall, vault, water pressure chamber, charging
Pipe, discharge nozzle, bottom of pond, pool wall and vault formation sweathouse and air chamber, dome top are provided with main Chi Kou, main Chi Kou provided with activity
Lid, removable cover is provided with escape pipe, and building encapsulation process method includes：
(1), it is to the construction encapsulation process method at bottom of pond, pool wall, water pressure chamber, discharge nozzle, at feed pipe：To bottom of pond,
Pool wall, water pressure chamber are laid bricks mould, are carried out pond body and are poured, and stock mould are removed after material solidification, to bottom of pond, pool wall, water pressure chamber, discharge nozzle
Inwall at place, feed pipe carries out interior sealing processing；
(2), to the pool wall inwall in 20cm width ranges below vault, vault and pool wall junction, encapsulation process is built
Method is：Pool wall inwall in 20cm width ranges below vault, vault and pool wall junction is laid bricks mould, take sealing to arrange
Apply, carry out pond body and pour, stock mould is removed after material solidification；
(3), methane tank body inside is carried out after interior sealing processing, to 20cm below vault, vault and pool wall junction
Pool wall outer wall in width range carries out external seal processing.
According to currently preferred, gas chamber of marsh gas tank, which builds encapsulation process method, also to include step (4), methane-generating pit is carried out
Sealing propertytest.
According to currently preferred, in the step (1), one layer of stock mould built to bottom of pond, pool wall, water pressure chamber, concrete is used
Carry out pond body to pour, pour one layer, build second layer stock mould after vibration compacting again.
According to currently preferred, in the step (2), to 20cm width models below vault, vault and pool wall junction
Pool wall inwall in enclosing is laid bricks mould, after stock mould is puzzled, is spread fine sand layer, is uniformly paved on stock mould with fine sand, and spreads smooth, laying
Fine sand layer thickness be 1-3cm；
Spread after fine sand layer, repave mortar bed, the mortar bed thickness of laying is 2-3cm, and screeding and compaction repeatedly, the mortar
For cement：Water=0.5:1 mixes and mixes thoroughly obtained in mass ratio；
Spread after mortar bed, repave the first sand-lime pulp layer, the first sand-lime pulp layer thickness of laying is 3-5cm, and repeatedly floating
Compacting, the first sand-lime slurry is sand: cement: water=1: in mass ratio mix and mix obtained at 1: 1；Then, the second sand is repaved
Mortar bed, the second sand-lime pulp layer thickness of laying is 3-5cm, and the second sand-lime slurry is sand: cement: water=2: 1: 1, by quality
It is more obtained than mixing and mixing thoroughly；
Spread after the second sand-lime pulp layer, carrying out pond body with concrete pours.
It is further preferred that the cement is No. 425 portland cements.
It is further preferred that the concrete is cement: sand: stone=1: in mass ratio mix and mix obtained at 3: 5
Concrete.
It is further preferred that between paving fine sand layer and paving mortar bed, between the first sand-lime pulp layer of paving mortar bed and paving, paving the
Between one sand-lime pulp layer and the second sand-lime pulp layer, the second sand-lime pulp layer of paving and carried out with concrete between pond body pours, during interval
Between be 2 hours.
The interior sealing that the inwall to position at bottom of pond, pool wall, water pressure chamber, discharge nozzle, at feed pipe in step (1) is carried out
Process step is as follows：
(a) scratch coat：By cement: sand: water=1: in mass ratio mix and mix obtained cement bonded sand mortar, brush at 2.5: 1
Painting thickness is 1~1.5cm；(b) finish coat：By cement: sand: water=1: in mass ratio mix and mix obtained cement at 1: 0.5
Sand-lime is starched, and brushing thickness is 0.4~0.6cm；It is repeatedly floating, press polish, it is impossible to sand holes occur；(c) surface layer brush dust is starched：By cement
: water=2~3: 1 mixes and mixes obtained plain mortar in mass ratio, brushes 3 times altogether, each time brushing time interval is 4~8h,
Every is 0.1cm all over thickness is brushed；Interval time between step (a) and step (b), between step (b) and step (c) is 2
~4h.New interior sealing processing has vault (i.e. gas dome), vault and pool wall junction to extend below as described herein
Inwall at 20cm；Interior sealing to the position at bottom of pond, pool wall, water pressure chamber, discharge nozzle, at feed pipe will be using conventional close
Envelope.
In step (3), what the pool wall outer wall in 20cm width ranges below vault, vault and pool wall junction was carried out is outer
Encapsulation process, using prior art, it is preferred that using conventional three layers of external seal processing：
First layer is brushed with cement bonded sand mortar, by cement: sand: water=1: in mass ratio mix and mix obtained water at 2.5: 1
Silt particle mortar, brushing thickness is 1~1.5cm；
The second layer is brushed with cement bonded sand mortar, by cement: sand: water=1: in mass ratio mix and mix obtained water at 1: 0.5
Silt particle mortar, brushing thickness is 0.4~0.6cm；
Third layer is brushed with plain mortar, by cement: water=2~3: 1 mixes and mix plain mortar is made in mass ratio, altogether brush
Apply 3 times, each is 4~8h all over time interval is brushed, every is 0.1cm all over thickness is brushed；
Layer 2~4h of interval time of adjacent two layers.
According to currently preferred, in step (4), sealing propertytest is carried out to methane-generating pit：The water filling into methane-generating pit, the water surface
Stop adding water when rising to zero-pressure line position；Waterline is marked after methane tank body is drenched, is observed 12 hours；If water level decreasing does not surpass
2 centimetres are crossed, shows water-tight below the zero-pressure bit line of sweathouse, pressure testing can be just carried out；Before pressure testing, removable cover is installed, is sealed
Removable cover, connects on escape pipe and continues to add water into pond after air gauge；When air pressure difference reaches 10 kPas, stop adding water,
Record height of water level；Voltage stabilizing 24 hours, if difference≤0.3 kPa that air pressure difference declines, meets methane-generating pit anti-permeability performance.
It is further preferred that movable sealing cover：
(1) clay is crushed, crossed after 100 mesh sieves, the pulverized limestone with crossing 60 mesh sieves, by clay: pulverized limestone: water=1: 0.5:
0.5 mass ratio mixes and mixes uniform, and lime clay is made；
(2) net retaining circle is rinsed with water, lime clay is equably applied on the surface of removable cover, then removable cover is filled
On lime clay, step on and tightly be allowed to combine closely, seal the main Chi Kou of methane-generating pit with removable cover, add water and cultivate and look after, keep sealing.Activity
Lid is added water, it is, in order to detect sealing, water to be maintained above removable cover to add water with after the sealing of lime clay above removable cover
State, do not had if good seal, in water bubble generation, if sealing is bad, bubble can be produced in water.
The present invention is implemented in building biomass pool, and the position of methane-generating pit selects, got the raw materials ready and the same conventional water of major project construction
Methane tank is built, when actually building for different methane-generating pit positions, below vault, vault and pool wall junction
It is first that the air storage position of pool wall inwall in 20cm width ranges carries out inside at new construction encapsulating method as described above, vault
Series of processes operation is carried out, is then poured, encapsulation process is carried out in outer wall after pouring, and pond body other parts are using normal
Interior sealing processing is advised, disposed of in its entirety carries out sealing propertytest after finishing, then carries out movable sealing cover.
The beneficial effects of the present invention are：
1st, using technical scheme, it ensure that the sealing of methane-generating pit, it is to avoid use process in methane-generating pit
In leakage problem, the maintenance probability of methane-generating pit is reduced, beneficial to the long-term use of methane-generating pit.
2nd, technical scheme is compared with conventional building biomass pool, and conventional building biomass pool has simply been poured in pond body
Removed into solidification and carry out inner wall sealing processing after stock mould again, and the present invention carries out innovative design to methane-generating pit inner seal method,
Highlight interior sealing and replace conventional inner sealing method, be, when just carrying out pond body vault stock mould, to be poured in biomass pool body air chamber
Seal approach is just taken before building, does not increase complicated procedures of forming, an interior sealing, and the inside and outside knot of the present invention are carried out to keypoint part
Close, handled respectively for different biomass pool structure positions, sealing is higher, it is higher once to build successful probability, province
Work is time saving, outdoor to be easy to operation, it is easy to popularize, and is adapted to vast methane-generating pit for farm household and uses.
3rd, the methane-generating pit built using technical scheme, blending property it is good, smooth it is not hardened, easily form smooth closed
Solidification layer, sealing is strong, effectively improves the biogas utilization rate of methane-generating pit, high, workable using easy, gas producing efficiency,
Promote ecological agriculture development, lifting new energy development and utilization, promote energy-saving, recycling economy and sustainable development.
4th, technical scheme, facilitates the use of methane-generating pit, alleviates maintenance labour, improves peasant household to agriculture
The use enthusiasm of village's methane-generating pit, extends the service life of methane-generating pit.
5th, when technical scheme overcomes traditional methane tank construction, interior sealing processing is wasted time and energy, it is difficult to operated,
Particularly in summer, operate the temperature brought high in methane-generating pit, light difference, difficulty height, sealing reduction constructing operation difficulty
High the problem of.
6th, technical scheme is simple and feasible using cement concrete as raw material, and cost is low, while also can guarantee that extremely excellent
Sealing.
Brief description of the drawings
Fig. 1 is biomass pool structure schematic diagram of the present invention；
Fig. 2 is stock mould structural representation at methane-generating pit vault of the present invention；
Fig. 3 is structural representation after the complete fine sand layer of paving at partial enlargement at A in Fig. 2；
Fig. 4 is structural representation after the complete mortar bed of paving at partial enlargement at A in Fig. 2；
Fig. 5 is structural representation after the complete first sand-lime pulp layer of paving at partial enlargement at A in Fig. 2, the second sand-lime pulp layer；
Fig. 6 is to have poured structural representation after concrete at partial enlargement at A in Fig. 2；
Wherein, 1, vault, 2, pool wall, 3, bottom of pond, 4, water pressure chamber, 5, discharge nozzle, 6, feed pipe, 7, removable cover, 8, fine sand
Layer, 9, mortar bed, the 10, first sand-lime pulp layer and the second sand-lime pulp layer, 11, concrete, 12, zero-pressure line position.
Embodiment
Below by embodiment and the present invention will be further described with reference to accompanying drawing, but not limited to this.
Cement used in embodiment is No. 425 Portland cements, and cement, clay, pulverized limestone are conventional commercial products；
The modulus of fineness of sand used is 3.0-2.0, the sand weight of soil content in sand≤3%, the sand of mica amount ＜ 0.5% in sand
Weight, the sand weight of sulfide and sulphates content in sand≤1%.The methane-generating pit of 8 cubic metres of construction, needs 1.0 tons or so of water consumption mud；Sand
2m3。
As shown in figures 1 to 6.
Embodiment 1：
A kind of gas chamber of marsh gas tank builds encapsulation process method, and methane-generating pit includes bottom of pond, pool wall, vault, water pressure chamber, charging
Pipe, discharge nozzle, bottom of pond, pool wall and vault formation sweathouse and air chamber, dome top are provided with main Chi Kou, main Chi Kou provided with activity
Lid, removable cover is provided with escape pipe, and building encapsulation process method includes：
(1), it is to the construction encapsulation process method at bottom of pond, pool wall, water pressure chamber, discharge nozzle, at feed pipe：To bottom of pond,
Pool wall, water pressure chamber build one layer of stock mould, carry out pond body with concrete and pour, pour one layer, build second layer stock mould after vibration compacting again,
Stock mould is removed after material solidification, interior sealing processing is carried out to the inwall at bottom of pond, pool wall, water pressure chamber, discharge nozzle, at feed pipe；
(2), to the pool wall inwall in 20cm width ranges below vault, vault and pool wall junction, encapsulation process is built
Method is：Pool wall inwall in 20cm width ranges below vault, vault and pool wall junction is laid bricks mould, after stock mould is puzzled,
Fine sand layer is spread, is uniformly paved on stock mould with fine sand, and spreads smooth, the fine sand layer thickness of laying is 1cm；
After having spread fine sand layer 2 hours, mortar bed is repaved, the mortar bed thickness of laying is 2cm, and screeding and compaction repeatedly, institute
Mortar is stated for cement：Water=0.5:1 mixes and mixes thoroughly obtained in mass ratio；
After having spread mortar bed 2 hours, the first sand-lime pulp layer is repaved, the first sand-lime pulp layer thickness of laying is 3cm, and repeatedly
Screeding and compaction, the first sand-lime slurry is sand: cement: water=1: in mass ratio mix and mix obtained at 1: 1；Then, has been spread
After one sand-lime pulp layer 2 hours, the second sand-lime pulp layer is repaved, the second sand-lime pulp layer thickness of laying is 3cm, the sand-lime slurry is sand
: cement: water=2: in mass ratio mix and mix obtained at 1: 1；
The second sand-lime pulp layer is spread after 2 hours, carrying out pond body with concrete pours, stock mould is removed after material solidification；First
Sand-lime pulp layer, the second sand-lime pulp layer are all sand-lime pulp layer, are distinguished because composition is different with first, second, Fig. 5 is that the first sand-lime is starched
Layer, the brief display of the second sand-lime pulp layer.
(3), methane tank body inside is carried out after interior sealing processing, to 20cm below vault, vault and pool wall junction
Pool wall outer wall in width range carries out external seal processing.
The concrete is cement：Sand：Stone=1:3:5 mix and mix obtained concrete thoroughly in mass ratio.
Embodiment 2：
A kind of gas chamber of marsh gas tank builds encapsulation process method, and as described in Example 1, difference is its method, in addition to step
Suddenly (4), to methane-generating pit carry out sealing propertytest.
Embodiment 3：
A kind of gas chamber of marsh gas tank builds encapsulation process method, and as described in Example 1, difference is its method, in step (1)
The interior sealing that the inwall at the position at bottom of pond, pool wall, water pressure chamber, discharge nozzle, at feed pipe is carried out is handled：(a) bottom is smeared
Ash：By cement: sand: water=1: in mass ratio mix and mix obtained cement bonded sand mortar at 2.5: 1, and brushing thickness is 1cm；(b) face
Layer is plastered：By cement: sand: water=1: in mass ratio mix and mix obtained cement bonded sand mortar at 1: 0.5, and brushing thickness is 0.4cm；
It is repeatedly floating, press polish, it is impossible to sand holes occur；(c) surface layer brush dust is starched：By cement: water=2: 1 mixes and mix and makes in mass ratio
Plain mortar is obtained, is brushed 3 times altogether, each is 4h all over time interval is brushed, and it is 0.1cm that every time, which is brushed thickness,；Step (a) and step
(b) interval time between, between step (b) and step (c) is 2h.
In step (3), what the pool wall outer wall in 20cm width ranges below vault, vault and pool wall junction was carried out is outer
Encapsulation process, using prior art, it is preferred that using conventional three layers of external seal processing：
First layer is brushed with cement bonded sand mortar, by cement: sand: water=1: in mass ratio mix and mix obtained water at 2.5: 1
Silt particle mortar, brushing thickness is 1cm；
The second layer is brushed with cement bonded sand mortar, by cement: sand: water=1: in mass ratio mix and mix obtained water at 1: 0.5
Silt particle mortar, brushing thickness is 0.4cm；
Third layer is brushed with plain mortar, by cement: water=2: 1 is mixed and mix plain mortar is made in mass ratio, and 3 are brushed altogether
Time, each is 4h all over time interval is brushed, and every is 0.1cm all over thickness is brushed.The layer interval time 2h of adjacent two layers.
Embodiment 4：
A kind of gas chamber of marsh gas tank builds encapsulation process method, and as described in Example 3, difference is its method, in step (1)
The interior sealing that the inwall at the position at bottom of pond, pool wall, water pressure chamber, discharge nozzle, at feed pipe is carried out is handled：(a) bottom is smeared
Ash：By cement: sand: water=1: in mass ratio mix and mix obtained cement bonded sand mortar at 2.5: 1, and brushing thickness is 1.5cm；(b)
Finish coat：By cement: sand: water=1: in mass ratio mix and mix obtained cement bonded sand mortar at 1: 0.5, and brushing thickness is
0.6cm；It is repeatedly floating, press polish, it is impossible to sand holes occur；(c) surface layer brush dust is starched：By cement: water=3: 1 mixes simultaneously in mass ratio
Mix and plain mortar is made, brush 3 times altogether, each is 8h all over time interval is brushed, every is 0.1cm all over thickness is brushed；Step (a) with
Interval time between step (b), between step (b) and step (c) is 4h.
In step (3), what the pool wall outer wall in 20cm width ranges below vault, vault and pool wall junction was carried out is outer
Encapsulation process, using prior art, it is preferred that using conventional three layers of external seal processing：
First layer is brushed with cement bonded sand mortar, by cement: sand: water=1: in mass ratio mix and mix obtained water at 2.5: 1
Silt particle mortar, brushing thickness is 1.5cm；
The second layer is brushed with cement bonded sand mortar, by cement: sand: water=1: in mass ratio mix and mix obtained water at 1: 0.5
Silt particle mortar, brushing thickness is 0.6cm；
Third layer is brushed with plain mortar, by cement: water=3: 1 is mixed and mix plain mortar is made in mass ratio, and 3 are brushed altogether
Time, each is 8h all over time interval is brushed, and every is 0.1cm all over thickness is brushed.The layer interval time 4h of adjacent two layers.
Embodiment 5：
A kind of gas chamber of marsh gas tank builds encapsulation process method, and as described in Example 2, difference is its method, step (4)
In, sealing propertytest is carried out to methane-generating pit：The water filling into methane-generating pit, the water surface stops adding water when rising to zero-pressure line position；Treat methane-generating pit
Waterline is marked after pond body is drenched, is observed 12 hours；If water level decreasing be no more than 2 centimetres, show the zero-pressure bit line of sweathouse with
Under it is water-tight, can just carry out pressure testing；Before pressure testing, removable cover is installed, movable sealing cover connects air gauge follow-up on escape pipe
Continue and added water into pond；When air pressure difference reaches 10 kPas, stop adding water, record height of water level；Voltage stabilizing 24 hours, if air gauge
Difference≤0.3 kPa that difference declines, meets methane-generating pit anti-permeability performance.
Movable sealing cover：
(1) clay is crushed, crossed after 100 mesh sieves, the pulverized limestone with crossing 60 mesh sieves, by clay: pulverized limestone: water=1: 0.5:
0.5 mass ratio mixes and mixes uniform, and lime clay is made；
(2) net retaining circle is rinsed with water, retaining circle, removable cover are that those skilled in the art are building rural area methane-generating pit
When usual means, lime clay is equably applied on the surface of removable cover, then removable cover on the lime clay, step on tight
It is allowed to combine closely, seals the main Chi Kou of methane-generating pit with removable cover, then add water and cultivate and look after, keeps sealing.Removable cover lime glue
After mud sealing, added water above removable cover, it is the state for maintaining water above removable cover in order to detect sealing to add water, if
Bubble generation is not had in good seal, water, if sealing is bad, bubble can be produced in water.
Embodiment 6：
A kind of gas chamber of marsh gas tank builds encapsulation process method, and as described in Example 1, difference is its structure, step (2)
In,
To the pool wall inwall in 20cm width ranges below vault, vault and pool wall junction, encapsulation process method is built
For：Pool wall inwall in 20cm width ranges below vault, vault and pool wall junction is laid bricks mould, after stock mould is puzzled, paving is thin
Layer of sand, is uniformly paved with fine sand on stock mould, and spreads smooth, and the fine sand layer thickness of laying is 3cm；
Fine sand layer after 2 hours is spread, mortar bed is repaved, the mortar bed thickness of laying is 3cm, and screeding and compaction repeatedly, described
Mortar is cement：Water=0.5:1 mixes and mixes thoroughly obtained in mass ratio；
Mortar bed is spread after 2 hours, the first sand-lime pulp layer is repaved, the first sand-lime pulp layer thickness of laying is 5cm, and is smeared repeatedly
Concora crush is real, and the first sand-lime slurry is sand: cement: water=1: in mass ratio mix and mix obtained at 1: 1；Then, first has been spread
After sand-lime pulp layer 2 hours, the second sand-lime pulp layer is repaved, the second sand-lime pulp layer thickness of laying is 5cm, the second sand-lime slurry is
Sand: cement: water=2: in mass ratio mix and mix obtained at 1: 1；
The second sand-lime pulp layer is spread after 2 hours, carrying out pond body with concrete pours, stock mould is removed after material solidification.
Claims (6)
1. a kind of gas chamber of marsh gas tank builds encapsulation process method, methane-generating pit include bottom of pond, pool wall, vault, water pressure chamber, feed pipe,
Discharge nozzle, bottom of pond, pool wall and vault formation sweathouse and air chamber, dome top, which is provided with main Chi Kou, main Chi Kou, is provided with removable cover,
Removable cover is provided with escape pipe, it is characterised in that building encapsulation process method includes：
(1), it is to the construction encapsulation process method at bottom of pond, pool wall, water pressure chamber, discharge nozzle, at feed pipe：To bottom of pond, pool wall,
Water pressure chamber is laid bricks mould, is carried out pond body and is poured, and stock mould is removed after material solidification, at bottom of pond, pool wall, water pressure chamber, discharge nozzle, charging
Inwall at pipe carries out interior sealing processing：
(a) scratch coat：By cement: sand: water=1: in mass ratio mix and mix obtained cement bonded sand mortar at 2.5: 1, brushes thick
Spend for 1~1.5cm；(b) finish coat：By cement: sand: water=1: in mass ratio mix and mix obtained cement sand-lime at 1: 0.5
Slurry, brushing thickness is 0.4~0.6cm；It is repeatedly floating, press polish, it is impossible to sand holes occur；(c) surface layer brush dust is starched：By cement: water
In mass ratio mix and mix obtained plain mortar at=2~3: 1, brushes 3 times altogether, each time brushing time interval is 4~8h, every time
Brushing thickness is 0.1cm；Interval time between step (a) and step (b), between step (b) and step (c) is 2~4h；
(2), to the pool wall inwall in 20cm width ranges below vault, vault and pool wall junction, encapsulation process method is built
For：Pool wall inwall in 20cm width ranges below vault, vault and pool wall junction is laid bricks mould, after stock mould is puzzled, paving is thin
Layer of sand, is uniformly paved with fine sand on stock mould, and the fine sand layer thickness of laying is 1-3cm；
Spread after fine sand layer, repave mortar bed, the mortar bed thickness of laying is 2-3cm, and the mortar is cement：Water=0.5:1 presses
Mass ratio is mixed and mixed thoroughly obtained；
Spread after mortar bed, repave the first sand-lime pulp layer, the first sand-lime pulp layer thickness of laying is 3-5cm, the first sand-lime slurry
For sand: cement: water=1: in mass ratio mix and mix obtained at 1: 1；Then, the second sand-lime pulp layer, the second sand of laying are repaved
Mortar bed thickness is 3-5cm, and the second sand-lime slurry is sand: cement: water=2: 1: 1, mix and mix thoroughly obtained in mass ratio；
Spread after the second sand-lime pulp layer, carrying out pond body with concrete pours, stock mould is removed after material solidification；
(3), methane tank body inside is carried out after interior sealing processing, to 20cm width below vault, vault and pool wall junction
In the range of pool wall outer wall carry out external seal processing：
First layer is brushed with cement bonded sand mortar, by cement: sand: water=1: in mass ratio mix and mix obtained cement bonded sand at 2.5: 1
Mortar, brushing thickness is 1~1.5cm；
The second layer is brushed with cement bonded sand mortar, by cement: sand: water=1: in mass ratio mix and mix obtained cement bonded sand at 1: 0.5
Mortar, brushing thickness is 0.4~0.6cm；
Third layer is brushed with plain mortar, by cement: water=2~3: 1 is mixed and mix plain mortar is made in mass ratio, and 3 are brushed altogether
Time, each is 4~8h all over time interval is brushed, and every is 0.1cm all over thickness is brushed；
Layer 2~4h of interval time of adjacent two layers.
2. gas chamber of marsh gas tank according to claim 1 builds encapsulation process method, it is characterised in that the cement is 425
Number portland cement.
3. gas chamber of marsh gas tank according to claim 1 builds encapsulation process method, it is characterised in that in the step (1),
One layer of stock mould is built to bottom of pond, pool wall, water pressure chamber, pond body is carried out with concrete and pours, pour one layer, build second after vibration compacting again
Layer stock mould.
4. the gas chamber of marsh gas tank according to claim 1 or 3 builds encapsulation process method, it is characterised in that the concrete
It is cement：Sand：Stone=1:3:5 mix and mix obtained concrete thoroughly in mass ratio.
5. gas chamber of marsh gas tank according to claim 1 builds encapsulation process method, it is characterised in that paving fine sand layer and paving ash
Between pulp layer, between the first sand-lime pulp layer of paving mortar bed and paving, spread between the first sand-lime pulp layer and the second sand-lime pulp layer, spread second
Sand-lime pulp layer and carried out with concrete between pond body pours, interval time is 2 hours.
6. gas chamber of marsh gas tank according to claim 1 builds encapsulation process method, it is characterised in that gas chamber of marsh gas tank is built
Encapsulation process method also includes step (4), carries out sealing propertytest to methane-generating pit.
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| CN101210221A (en) * | 2006-12-30 | 2008-07-02 | 周庆运 | Sealing method for methane tank |
| CN101633888A (en) * | 2009-05-29 | 2010-01-27 | 刘静盟 | Sealing for biogas generating pit and preparation method for sealing coating |
| CN103215181A (en) * | 2013-04-17 | 2013-07-24 | 山东省农业科学院蔬菜研究所 | Internal and external sealing treatment method for biogas digester |
| CN103966077A (en) * | 2013-02-05 | 2014-08-06 | 郭禄昌 | Construction method for novel round-pot-shaped high-efficiency combined methane tank |
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| CN101210221A (en) * | 2006-12-30 | 2008-07-02 | 周庆运 | Sealing method for methane tank |
| CN101633888A (en) * | 2009-05-29 | 2010-01-27 | 刘静盟 | Sealing for biogas generating pit and preparation method for sealing coating |
| CN103966077A (en) * | 2013-02-05 | 2014-08-06 | 郭禄昌 | Construction method for novel round-pot-shaped high-efficiency combined methane tank |
| CN103215181A (en) * | 2013-04-17 | 2013-07-24 | 山东省农业科学院蔬菜研究所 | Internal and external sealing treatment method for biogas digester |
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