CN1257120C - Controllable box type complete equipment for anaerobic fermentation and methane liquid treatment - Google Patents
Controllable box type complete equipment for anaerobic fermentation and methane liquid treatment Download PDFInfo
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- CN1257120C CN1257120C CNB2003101102466A CN200310110246A CN1257120C CN 1257120 C CN1257120 C CN 1257120C CN B2003101102466 A CNB2003101102466 A CN B2003101102466A CN 200310110246 A CN200310110246 A CN 200310110246A CN 1257120 C CN1257120 C CN 1257120C
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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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Processing Of Solid Wastes (AREA)
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Abstract
The present invention discloses a controllable box type complete device for anaerobic fermentation and methane liquid treatment. A methane fermentation system is mainly composed of a solar heating greenhouse, more than two methane fermentation pools connected in series, feed ports, discharge ports, an auxiliary heating system, etc., wherein the feed ports and the discharge ports are arranged on the methane fermentation pools; each methane fermentation pool comprises a discharge chamber, a pool body and an upper cover of a steel methane fermentation pool; the solar heating greenhouse comprises a framework and a plastic film covered on the framework; the auxiliary heating system is composed of a heating furnace and a heat supply circulation pipeline; the heat supply circulation pipeline is provided with a circulation water pump and a valve; one end of the heat supply circulation pipeline is communicated with the discharge chamber of the methane fermentation pool, and the other end is communicated with a heating water jacket in the heating furnace; heat supply circulation pipelines being from the heating water jacket make a plurality of methane fermentation pools which pass through the upper covers of the steel methane fermentation pools connected in series and penetrated so as to form a relative independent auxiliary heating system for methane liquid circulation. The present invention is an auxiliary heating type methane project which is suitable for scale hoggeries, and mainly solves the problems of low fermentation temperature, short time of annual methane production, low volume methane production rate, etc. of a traditional methane pool. The traditional methane pool can not guarantee the stable methane production temperature and the methane production rate of a methane system. The present invention uses solar heating and the auxiliary heating device, and completely overcomes the deficiencies of the traditional methane pool. The present invention has the.
Description
Technical field
The present invention relates to a kind of anaerobically fermenting firedamp gas equipment, especially a kind of controlled cluster case type anaerobically fermenting and natural pond liquid are processed into complete equipment.
Background technology
1, feces of livestock and poultry biogas treatment technology present situation
Along with continuous progress in science and technology, the raising day by day of living standards of the people, developing rapidly of aquaculture produced a large amount of feces of livestock and poultry.Since the nineties, China's aquaculture feces of livestock and poultry quantity discharged sharp increase, according to incompletely statistics, at the bottom of calendar year 2001, annual ight soil and liquid dung total amount are above 1,000,000,000 tons.Biogas technology is to solve the effective way that feces of livestock and poultry pollutes.Methane fermentation system starts from the 60 to 70's at the beginning of liberation in the development of China, but because biogas technology is also not really ripe, many small-sized methanes pond exists many problems technically.Phenomenons such as for example, the existence leaks, gas leakage.Along with continuous progress in science and technology, biogas technology has formed comparatively perfect system.
To the end of the year 1996, China promotes firewood-saving and coal-saving cooking stove 1.7 hundred million families, has reduced the consumption of tens million of tons of standard coals every year; More than 600 ten thousand of methane-generating pit for farm household have been built up in the whole nation, produce biogas 16 billion cubic meters per year; Build nearly 600 places of big-and-middle-sized biogas engineering (containing industrial organic waste biogas engineering), make 8.4 ten thousand family residents use high quality gas fuel.To the end of the year 2000, nearly 1000 trade effluents and feces of livestock and poultry biogas engineering are built together in the whole nation, have formed about 6 billion cubic meters/year biogas production ability.Whole nation peasant household over half has popularized the high-level efficiency firewood-saving stove, and can save 1/3 to 1/2 fuel consumption every year; Household biogas has overcome historical big rise and big fall, has gone on the steady progression stage, 5,250,000 methane-generating pit years of the whole nation more than 1,200,000,000 cubic metre of aerogenesis; Big-and-middle-sized biogas engineering is as an energy environment protection technology, like rain the back spring bamboo, develops very soon, more than 100 cubic metres 600 many places arranged; Oneself reaches 8.4 ten thousand families central gas supply, and the biogas comprehensive utilization and the ecological agriculture and rural area sustainable development are combined closely, and be flourish, in the ascendant.In order further to improve biomass energy utilization technologies, improve utilising efficiency in recent years, also carried out agriculture and forestry organic waste materials such as stalk are converted to Research on New and exploitations such as high-quality gas, liquefied fuel, and built up some demonstration projects.
Add up according to agrosystem, national methane-generating pit for farm household is 956.79 ten thousand at the bottom of the calendar year 2001, place surplus biogas engineering 400 many places of industrial organic waste residues such as processing grain distillery, starch factory, Bean Products Factory, waste water, the biogas engineering 600 of processing plant feces of livestock and poultry, the total area 1,500,000 m
3, produce biogas 1,000,000,000 m per year
3, year 2500 ten thousand tons of organic waste of processing, waste water 100,000,000 m
3Methane-generating pit 4093 places in urban sewage purification dispose of sewage 300,000,000 tons.
The development biogas industry is the optimal path of turning waste into wealth: in the rural area, some local agricultural product castoff such as stalk is all incinerated, and this has not only wasted Energy resources in vain, and has caused the serious environmental pollution.Biogas engineering has not only overcome the deficiency of this respect, and has produced the Energy resources of cleaning, is that we long for.In large and medium-sized plant, the benefit of development biogas industry is just more obvious, and it not only can handle a large amount of ight soil, sewage, but also provides reliable life with guaranteeing for periphery and our factory resident.
Agricultural will solve the problem of Sustainable development, must handle environment and problem of resource well.Agroecological environment can be protected and improve to development biogas not only, utilizes natural resources, particularly renewable resources rationally, constantly; and avoid the predation formula to manage and abuse; the phenomenon of waste resource is raised labour productivity and resource utilization, thereby promotes the Sustainable development of agricultural.
2, the meaning of feces of livestock and poultry biogas treatment technology
Along with developing rapidly of aquaculture, produced a large amount of feces of livestock and poultry.The development biogas industry not only can be handled a large amount of feces of livestock and poultry wastes but also can turn waste into wealth a large amount of biogas of generation.So various biogas fermentation devices have just arisen at the historic moment.But present large-scale reactor such as large-scale reactor such as UASB, IC, have very high technical requirements at their complex structure, the management difficulty of getting up.And, build up once that investment cost is big, the payback period is long.Be unfavorable for promoting.And the leavening temperature of traditional methane-generating pit is lower, and volume yield rate is not high again, and leavening temperature is subjected to the influence of envrionment temperature bigger, the leavening temperature instability.Gas production rate is little, and the aerogenesis instability can not be fit to the requirement of big-and-middle-sized plant sewage disposal.
Summary of the invention
The purpose of this invention is to provide a kind of throughput that improves bionethanation system, guarantee that the controlled cluster case type anaerobically fermenting and the natural pond liquid of bionethanation system normal gas producing in winter is processed into complete equipment.
Technical scheme of the present invention is: a kind of controlled cluster case type anaerobically fermenting and natural pond liquid are processed into complete equipment, methane fermentation system mainly by solar heating booth, the marsh gas fermentation pool that is cascaded more than two and on opening for feed and several sections such as discharge port, auxiliary heating system form, marsh gas fermentation pool comprises discharge room, pond body and steel marsh gas fermentation pool loam cake; The solar heating booth comprises skeleton and the plastics film that covers on the skeleton; Auxiliary heating system is made up of process furnace and thermal cycling pipe two parts, water circulating pump and valve are housed on thermal cycling pipe, the discharge room UNICOM of thermal cycling pipe one end and marsh gas fermentation pool, heating water jacket UNICOM in the other end and the process furnace, the thermal cycling pipe that comes out from the heating water jacket connects relatively independent natural pond liquid circulation auxiliary heating system of formation by steel marsh gas fermentation pool loam cake with a plurality of marsh gas fermentation pool series connection.
Each above-mentioned biogas fermentation tankage is 10 cubic metres, can display combination according to fermentation load and fermentation volume, and its combined volume can be above 100 cubic metres.
The internal surface of steel marsh gas fermentation pool loam cake is coated with one deck sanitas or enamel layer, and outside surface is coated with the higher absorber coatings of last layer sunlight absorption rate.
Bottom the foot of a wall of methane-generating pit has the transition arc of radius r=300mm along the depth direction, and it is an inclined-plane of 1: 50 that ground, methane-generating pit bottom is designed to gradient, and discharge port is located at the inclined-plane.
Natural pond liquid treatment facility is housed on the thermal cycling pipe of process furnace, and this natural pond liquid treatment facility comprises setting tank, pretreatment pool, coarse filter, agitator and secondary filter; Setting tank is by the thermal cycling pipe and the coarse filter UNICOM of pipeline and process furnace, and pretreatment pool is by pipeline and coarse filter UNICOM, and coarse filter is by pipeline and agitator UNICOM, and agitator is by pipeline and secondary filter UNICOM.
This device adopts solar heating and boosting equipment heating fermented feed liquid, effective like this stable of leavening temperature that guaranteed.Moreover sun power is inexhaustible, the nexhaustible energy.Heating raw is agricultural waste materials such as yule logs, stalk, aboundresources, cheapness.Heating cost is just very low like this.This installation cost is low, the payback period short.The ight soil that is fit to very much middle-size and small-size pig farm is handled, and is suitable for large area applications.The purpose of this subject study is how to improve the leavening temperature of pig farm methane fermentation system and the approach of factor of created gase in order to explore one.For improving large scale of pig farm field bionethanation system structure, improve the throughput of bionethanation system, guarantee bionethanation system normal gas producing in winter.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the discharge port structural representation
Fig. 3 is floating cover transfiguration wet type air collector structural representation
Fig. 4 is an auxiliary heating type methane fermentation system process flow diagram structural representation
Fig. 5 is an overall structure synoptic diagram of the present invention
Embodiment
The composition of controlled cluster case type anaerobic fermentation system
1, the essentially consist of methane fermentation system
This methane fermentation system mainly by walkway 1, swinery 2, defecation groove 3, opening for feed 6, discharge port 9, heating pipe line 10, solar heating booth 4, marsh gas fermentation pool 5, boosting equipment 11, preheat several sections such as fermentation vat 7, steel marsh gas fermentation pool loam cake 12 and form.(as shown in Figure 1 and Figure 2)
(1) opening for feed
Feed-pipe end opening upper edge is positioned at 1/3～1/2 place of methane-generating pit pond body, and angle general and the methane-generating pit bay wall is about 30 °.The bore of opening for feed 6 is decided to be 800 * 800.
(2) design of discharge port and water pressure house
Discharge room 8: discharge port 9 pipeline tappings (as shown in Figure 2) below smoke chamber, caliber size is 800 * 800.Can hold a people and pass through, be convenient to serviceman's discrepancy like this.The size design of discharge room 8 is 1000 * 800 * 2000.And the plane, ground of discharge room should be lower than the about 200mm in discharge port plane.Help the discharge of feed liquid like this.The principle of design of discharge port 9: cleaning natural pond slag is simple and convenient, can utilize sludge pump directly to extract natural pond slag at the bottom of the pond out from the discharge room bottom.At ordinary times, also can utilize manual mode directly from the discharge room discharging during little discharging.
Water pressure house: the water liquid that the volume of water pressure house is discharged when can hold high yield tolerance is as the criterion, generally be not less than 10% of main volume, water pressure house top is provided with overflow groove, discharges high-order mouthful natural pond liquid when methane tank gas production is too much automatically, reaches the purpose of restriction highest pressure.Water pressure house is located at the outside of booth, is stamped concrete prefabricated lid above in case people, animal are fallen into because of carelessness.
(3) place design (this part is non-key link, outlines) is cultured on the pig farm
The big I of swinery structure determines that according to the size of the scale of breed flow into methane-generating pit smoothly in order to help ight soil and wash-down water, can suitably there be 2 ° of gradients on swinery ground, and it is wide that the walkway is designed to 1m, and keeper and material mover are passed through.
(4) solar heating and boosting equipment
Heating installation is made up of solar heating booth 4 (comprising that steel skeleton 4-1, plastics film 4-2 etc. form) and boosting equipment 11 (comprise heating pipe line 26, process furnace 25, chimney etc. form) two parts.Generally speaking, mainly rely on the solar heating booth to regulate the required temperature of anaerobic ferment process, realize that anaerobically fermenting normally carries out.
The principle of work of solar heating booth 4: sun shortwave enters in the pattern plastic warmhouse booth, becomes the material film through terrestrial surface radiation, so make the temperature in the warmhouse booth more and more higher.Heat in the greenhouse is passed to fermented liquid through the methane-generating pit loam cake of steel, thereby the heating fermented liquid improves leavening temperature, improves factor of created gase.When natural temperature is very low, when solar heating system can not satisfy the needed temperature of biogas fermentation, need to start auxiliary heating system, to guarantee that anaerobically fermenting normally carries out.The composition of auxiliary heating system (as shown in Figure 5): auxiliary heating system is made up of process furnace 25 and thermal cycling pipe 26 two partss, promptly form by water circulating pump 27, process furnace 25, pipeline 26 and valve 28 etc. respectively, discharge room 8 UNICOMs of thermal cycling pipe 26 1 ends and marsh gas fermentation pool 5, heating water jacket UNICOM in the other end and the process furnace 25, the thermal cycling pipe 26 that comes out from the heating water jacket connects relatively independent natural pond liquid circulation auxiliary heating system of formation by steel marsh gas fermentation pool loam cake 12 with a plurality of marsh gas fermentation pool series connection.Its principle of work is: water circulating pump 27 sucks heating water jacket in the process furnace 25 to fresh natural pond liquid from discharge room, natural pond liquid after utilizing circulating line 26 heating is again sent in the marsh gas fermentation pool from the metal roof shell 12 of each fermentation unit, formed the interior external circulating system of natural pond liquid boosting, thereby the heating fermented liquid improves leavening temperature.Simultaneously, also play the purpose that stirs fermented feed liquid, guaranteed the efficient operation of zymotechnique.
2, the design of utility appliance
(1) preheats the design of fermentation vat 7
It (is 40m that design volume is approximately 2.5 * 4 * 4
3).Pool wall thickness is whole brick wall, i.e. 240mm.One 20 ° inclination angle is arranged at its top, is coated with plastics film above, can utilize sun power that feed liquid is heated, thereby reaches pre-warmed purpose.When needing charging, open the valve feed liquid and can flow into methane-generating pit, advanced material back valve-off and got final product.
(2) floating cover transfiguration wet type air collector
Steel storage air-float hood 15 longitudinally fluctuates in the tank 17 of guide rail in cement pit with guide deflection sheave 16, be provided with automatic evacuated tube 14, inlet pipe 20, escape pipe 21 in the floating cover 15 in tank 17, on the floating cover 15 telltale hole 18 and valve 19 are arranged, floating cover 15 weight and counterweight provide certain methane outlet pressure, and pressure is generally 150～350mmH
2O (promptly 1470～3430Pa).When biogas was excessive in the gas-holder, unnecessary biogas was discharged from safety screen 13.Its structural representation is seen Fig. 3.
The advantage of floating cover transfiguration wet type air collector: biogas pressure is more stable, helps burner combustion, good reliability, and volume is changeable.Main drawback: floor space is big, the investment cost height.Show that according to service experience volume of gas storage tank 50%～60% is advisable with the day air demand.
(3) design of fermentation vat pond body
The specification of the pond body of fermentation vat 5 is 20000 * 3000 * 1500.Bottom the foot of a wall of methane-generating pit can avoid forming the dead angle like this along the arc transition of depth direction with radius r=300mm, helps the discharge of natural pond liquid.And it is an inclined-plane of 1: 50 that ground, methane-generating pit bottom is designed to gradient, helps natural pond, bottom slag like this and moves to discharge port from opening for feed, helps the discharge of natural pond slag.The capacity of each marsh gas fermentation pool 5 is 10 cubic metres, can display combination according to fermentation load and fermentation volume, and its combined volume can be above 100 cubic metres.
(4) design of loam cake
The material of loam cake 12 is a carbon steel, and material should have high compression strength and resistance to bend.Erosion resistance should be better, in order to strengthen the work-ing life of methane-generating pit loam cake, can be coated with last layer sanitas or enamel layer at the internal surface of loam cake 12.
In order to strengthen the ability that the methane-generating pit loam cake absorbs sunlight, can be coated with the higher absorber coatings of last layer sunlight absorption rate on loam cake 12 surfaces, table 1 has been listed the character of several absorber coatings, selects black light paint as shown in Table 2 for use better.
The character of several absorber coatings of table 1
| Material | Sunlight absorption rate α | Infrared emittance ε |
| Ash paint | 0.75 | |
| Black light paint | 0.90 | |
| Red varnish | 0.74 |
Airway: can not be concordant during installation with the vault face by the inner end of methane-generating pit, and should have more 10～20mm, can reduce moisture like this and bring gas pipe line into.
(5) characteristics of large-scale pig farm methane fermentation system
A, marsh gas fermentation pool loam cake are made with steel plate, and heat-transfer effect is good, and have also reduced the destruction of expanding with heat and contract with cold system being caused, and have overcome some drawbacks of brick in the past loam cake marsh gas fermentation pool.
B, design are laid with the auxiliary heat supplying pipeline under the liquid level, can make natural pond liquid also can keep higher temperature in the winter of cold, thereby guarantee the gas production rate of marsh gas fermentation pool, have overcome that the biogas fermentation cell system can not the annual shortcoming of using in the past.
C, preheat fermentation vat and have the function that preheats and store ight soil.
D, has solar heating and boosting equipment.
E, system sealing are better.
F, factor of created gase height.
G, easy for installation, be convenient to safeguard and maintenance.
(6) large-scale pig farm auxiliary heating type methane fermentation system process flow diagram (see figure 4)
The ight soil that the pig farm produces goes into to preheat fermentation vat through after the pre-treatment through the defecation concentrated flow.Absorb the heat that solar radiation produces when ight soil stops in preheating fermentation vat, thereby feed temperature is raise, reach pre-warmed purpose.Simultaneously, preheat the effect that fermentation vat also plays temporary transient storage swine excrement, when not having unnecessary space in the sweathouse, the ight soil that produces can temporarily be stored in and preheat in the fermentation vat, open valve when needing, ight soil flows into sweathouse under the effect of self gravitation, ferment.Valve-off gets final product when not required.Natural pond liquid ferments in sweathouse, and the biogas of generation is unexpectedly through entering gas-holder after the processing such as carbonated drink separation, desulfurization.Biogas can be produced use for resident living and pig farm.The natural pond slag can also field, feed be breeded fish etc. as fertilizer.
3, the design calculation of methane fermentation system
(1) scale design on supporting pig farm
Determining of methane-generating pit volume yield rate and biogas output
The methane-generating pit volume yield rate is a very important parameters.It because of zymotechnique, temperature and ground type (adopt efficient anaerobic technology send out big-and-middle-sized methane-generating pit) still underground type (hydraulic type biomass pool) very big difference is arranged.As shown in table 2.
The volume yield rate r of different methane-generating pits under table 2 condition of different temperatures
v
| Temperature (℃) | Volume yield rate r v(m 3·m -3·d -1) | |
| Big-and-middle-sized methane-generating pit | Hydraulic type biomass pool | |
| 10～15 | 0.25 | 0.10 |
| 20～25 | 1.0 | 0.25 |
But, because this methane fermentation system has sun power in boosting equipment.So it is unchallenged that this system will satisfy 20～25 ℃ aerogenesis temperature.But native system is smaller than large methane tank, so the volume yield rate that can get methane-generating pit according to table 2 approximately can be decided to be r
v=0.8m
3M
-3D
-1
Because: volume yield rate r
v=Q/V
So: Q=Vr
v(1)
In the formula: V-methane-generating pit volume, m
3
r
v-volume yield rate, m
3M
-3D
-1
The Q-biogas output, m
-3D
-1
Dirty raw material factor of created gase of excrement and dirty dry-matter (TS) quantity discharged of large-scale pig farm excrement (kg TSd
-1) determine
The available formula of relation (2) expression of the dirty dry-matter quantity discharged of biogas potential production and excrement:
Biogas output Q=W η r
m
So W=Q/ (η r
m) (2)
In the formula: Q-biogas output, m
-3D
-1
r
m-raw material factor of created gase, m
3Kg TS
-1
Pond rate, % are gone in η-excrement dirt;
Dirty dry-matter (TS) quantity discharged of W-excrement, kg TSd
-1
The dirty raw material factor of created gase of excrement is subjected to the influence of the quality of raw material and fermentation condition and variant, and test according to the Ministry of Agriculture: 35 ℃ of leavening temperatures, under 60 days the condition of fermentation period, the factor of created gase of excrement dirt raw material is at 0.224～0.480m
3Kg TS
-1Between, average out to 0.450m
3Kg TS
-1Because this bionethanation system has sun power and auxiliary heating system.So it is unchallenged keeping higher leavening temperature.So the dirty raw material factor of created gase of desirable excrement is r
m=0.40m
3Kg TS
-1
If large-scale pig farm adopt to be done clear excrement technology, argol to be removed make fertilizer and generally can remove excrement dirt about 60%, the excrement dirt that can enter methane-generating pit so just has only 40%, i.e. η=40%.
With η=40% substitution formula (2) η=40% o'clock, the amount of the dirty dry-matter of required excrement is W=500kg TSd
-1Large-scale pig farm live-stock inventory (h) and year are delivered determining of a number (H) for sale
With W=500kg TSd
-1The substitution following formula
[5]:
W＝0.378h-0.118 r＞0.9999 (3)
W＝0.218H-0.129 r＞0.9999 (4)
Obtain the live-stock inventory (h) of different η=40% o'clock and year deliver a number (H) for sale, be shown in Table 3.
Every design variable of table 3 methane-generating pit
| Methane-generating pit volume V (m 3) | Biogas output Q (m -3·d -1) | Volume yield rate rv (m 3·m -3 ·d -1) | Raw material factor of created gase rm (m 3·kg TS -1) | The dirty dry-matter W of excrement (kg TSd -1) | Amount of livestock on hand h (head) | Year total amount of livestock for sale H (head) | Go into pond rate η (%) |
| 100 | 80 | 0.8 | 0.4 | 500 | 1323 | 2294 | 40 |
So, with 100m
3The corresponding pig farm of methane-generating pit scale is: amount of livestock on hand is approximately 1300, and a year total amount of livestock for sale is approximately 2300.
(2) loam cake volume estimation and cost budgeting thereof
V
Arch=0.5 * 3 π (750+3)
2-0.5 * 3 π * 750
2=0.021249m
3
V
All around=60 * 3 (3000+6+2 * 60)+60 * 3 (2000-2 * 60)=0.90108mm
3
＝9.0108×10
-4m
3
V
Two ends=π 750
2* 3=5301437.6mm
3=5.3 * 10
-3m
3
So: V
Loam cake=V
Arch+ V
All around+ V
Two ends=0.02745m
3
The quality of single loam cake is:
M
Loam cake=ρ V
Loam cake=7.9 * 10
3Kg/m
3* 0.02745m
3=217kg=0.217 ton
The investment cost of 10 loam cakes is:
VL
1=10 * 0.217 ton * 2300 yuan/ton=4991 yuan
The volume calculation of pipeline:
V
Pipeline=π (0.053
2-0.05
2) * 21 * 5=0.1019m
3
M
Loam cake=7.9 * 10
3Kg/m
3* 0.1019m
3=805kg=0.805 ton
The investment cost of pipeline is: VL
2=0.805 * 2300 yuan/ton=1851.5 yuan
The steel gross investment is: VL
Steel=VL
1+ VL
2=6510 yuan+2415 yuan=6842.5 yuan
(3) estimation of concrete consumption and cost budgeting
V
Concrete=V
Crossbeam+ V
Pool wall+ V
Preheat
＝0.5×0.2×10+0.5×1.5(20+3)+(2.5×4×0.24+×4×4×0.24)＝41.74m
3
The concrete price of C10 is 225.05 yuan/m
3
So, concrete investment VL
3For
VL
3=41.74 * 225.05=9393.6 unit
(4) thermal technology calculates
Need heat and stalk consumption every day
The temperature of mesophilic digestion is 35 ℃, and waterpower residence time is 20d, and the total charge amount of system is pressed volumetrical 90% and calculated, i.e. 100m
3* 90%=90m
3, then installing the every day inlet amount is 90 ÷ 20=4.5m
3/ d, approximate getting done 5 tons.
The maximum heat supplied of device should be considered two aspects, for the moment charging every day is improved the required heat Q of leavening temperature by initial temperature
1The 2nd, the device heat that every day, heat radiation will replenish
Q
2(calculating) by 10% of heat supplied.
Then, Q=Q
1+ Q
2=cm Δ t+10%Q=4.2161 * 5000 (35-5)+10%Q
So every day, maximum heat supplied was Q=702683kJ.
Table 4 has been listed the thermal value of several stalks.
The thermal value of several stalks of table 4
| Kind | Thermal value (kJ/kg) | Kind | Thermal value (kJ/kg) |
| Maize straw | 15539 | Wheat straw | 15364 |
| Broomcorn straw | 15067 | Millet straw | 15012 |
If make fuel with maize straw, the calorific value of maize straw
[4]Be q=15539kJ/kg.
Because: Q=mq η
1(1-η
2)=1553940% (1-20) m
In the formula: η
1The thermo-efficiency of-burner hearth, η
1=40%; η
2-heat transfer heat loss rate, η
2=20
So: consuming maize straw every day is: m=141kg.
The greenhouse calculation of Heat Load
The thermal load in greenhouse is mainly calculated according to its heat balance equation.Its heat balance equation (only considering principal element) is:
(Q
I+Q
su)-(Q
o+Q
g)＝0
In the formula: Q
I---the solar radiation heat, W:
Q
Su---heating amount, W;
Q
o---the heat that the building enclosure convection current spreads out of, W;
Q
g---from the heat of ground conduction, W:
(1-1) solar radiation heat Q
I
Project the solar radiation on chamber covering material surface, the cap rock reflection that partly is covered, part is absorbed, and most of transmission enters the greenhouse, the solar radiation heat Q in input greenhouse
IFor
Q
I＝τIA
In the formula: τ---greenhouse printing opacity covering material is to the projection ratio of solar radiation:
I---the intensity of solar radiation on the horizontal surface, w/m
2
A---greenhouse floor area, m
2
(1-2) the heat Q that spreads out of of building enclosure convection current
o
In the formula: kj---heat transfer coefficient, W/ (m
2℃);
Aj---chamber covering material, building enclosure surface-area, m
2
Ti---indoor design temperature, ℃;
To---outdoor design temperature, ℃;
4 natural pond liquid are handled and complete equipment for processing
Natural pond liquid processed finished products is mainly used in the foliage spray of pollution-free vegetable and fruit, play the blade face fertilizer efficiency and kill larva and prevent the effect of adult the infringement of plant, its composition mainly is that the extraordinary natural pond liquid that purified and plant do not have strong malicious mixed solution and catalyzer etc. and mix, be processed into product formulation, being used for warmhouse booth plants vegetables and grows fruit, it can be avoided the edible food of people is brought harm to health for market provides green and Organic food.
4.1 the equipment and technology (as shown in Figure 5) of natural pond liquid processing
Natural pond liquid treatment facility comprises setting tank 30, pretreatment pool 31, coarse filter 32, agitator 33 and secondary filter 34; Setting tank 30 by pipeline 35,36 respectively with the thermal cycling pipe and coarse filter 32 UNICOMs of process furnace 25, pretreatment pool 31 is by pipeline 37 and coarse filter 32 UNICOMs, coarse filter 32 is by pipeline and agitator 33 UNICOMs, and agitator 33 is by pipeline and secondary filter 34 UNICOMs.
(1) pre-treatment of natural pond liquid requires: except that with the liquid of ight soil natural pond, also will adopt wheat straw stalk pretreated water in, pretreatment pool 31 to add ash and constitute stoste together.The wheat straw grass soaks and fermentation through 56 ℃ water temperature, filters its liquid and directly enters precipitation and natural pond liquid mixed precipitation, is processed into stoste earlier.
(2) stoste enters coarse filter 32 and carries out coarse filtration, adopts the ampuliform strainer, and division of labor procedure leaches.The little quartz sand of first operation, the second operation gac carries out coarse filtration to raw material, makes the relative inclusion-free of stoste.
(3) liquid enters mixing agitator 33, and the time spent adds plant does not have strong malicious mixed solution, adds catalyzer, adjusts the technologies such as pH value of liquid, mixes, and makes product stoste.
(4) product stoste enters secondary filter 34 and carries out essence filter, and product stoste is processed into finished product preparation after filtering through very thin film filter.
(5) packing of product preparation can adopt bottled or manual barrelling method to be distributed into commodity.
4.2 the facility investment of natural pond liquid processing
(1), natural pond liquid is handled 5000 yuan of setting tanks
(2). 1000 yuan of pumps
(3). 8000 yuan of strainers
(4), the batch mixing agitator is 2000 yuan
(5), secondary filter is 12000 yuan
(6), portioning machine is 10000 yuan
(7). 28000 yuan in factory building
(8), construction cost is 3000 yuan
(9), pretreatment pool is 2000 yuan
Ten thousand yuan of gross investment: 6.5+0.3+0.2=7
4.3 natural pond liquid Economic and Efficiency Analysis
5 natural pond slag composting suite of equipment and technical process
The natural pond slag can be made into compoiste fertilizer, its effect can make soil not harden, and has changed complete to fertilize to the influence of soil.The plant prod of producing simultaneously.Changed the fruit quality of executing chemical fertilizer specially, especially at vegetables, fruit product, it makes the taste nature and fragrant and sweet good to eat that becomes, it is the indispensable part of high-efficiency agriculture, improved the product production of agricultural fruit industry, optimized the quality of product simultaneously, made product can enter the field in international trade market.
5.1 the fertilize preparation craft of natural pond slag
(1) the natural pond slag with after the pump extraction, after the extraction supernatant liquor, carries out dehydration processing in setting tank 30 in methane-generating pit.
(2) the natural pond slag after dehydration processing mixes a certain proportion of biomass straw powder and is made into fertilizer.
(3) fertilizer that is made into is carried out granulation, adopt mechanical granulator to make.
(4) dry after the granulation, in dryer, add gentle dehumidifying with 60 ℃ of-100 ℃ of dry air.
(5) packing available Manual Packaging or use mechanical packaging is promptly made product.
5.2 natural pond slag composting suite of equipment investment
(1) setting tank 4m
31500 yuan
(2) centrifuge is 6000 yuan
(3) tablets press is 50000 yuan
(4) dryer is 8000 yuan
(5) water pump is 1500 yuan
(6) packing (but Manual Packaging) bagging mouth machine is 3000 yuan
(7) factory building 200m
2100000 yuan
170,000 yuan of gross investments
5.3 the Economic and Efficiency Analysis of natural pond slag composting
Natural pond slag composting cost: 1 ton 50 yuan of natural pond slags, 1 ton 120 yuan of straw powder, 1 ton 280 yuan of Synergistic additives.Make the fertile proportioning 60% natural pond slag in natural pond, 30% straw powder, 10% Synergistic additives.1 ton of natural pond slag composite fertilizer cost price is 20 yuan in natural pond 50 yuan * 0.6=30 of a slag consumption unit, 120 yuan * 0.3=40 of straw powder consumption unit, Synergistic additives consumption 280 * 0.1=28 unit, the electricity charge 10 degree * 0.8=8 units, labor hour expense, 116 yuan of 1 ton of natural pond slag composite fertilizer total costs.450 yuan/ton of sale prices, 334 yuan of profits per ton.Per hour produce 3 tons, produced every day 8 hours, produce 24 tons every day.Every day profit 24 * 334=8016 unit.
Claims (5)
1, a kind of controlled cluster case type anaerobically fermenting and natural pond liquid are processed into complete equipment, it is characterized in that: methane fermentation system mainly by solar heating booth (4), the marsh gas fermentation pool (5) that is cascaded more than two and on opening for feed (6) and discharge port (9), auxiliary heating system several sections form, marsh gas fermentation pool comprises discharge room (8), pond body and steel marsh gas fermentation pool loam cake (12); Solar heating booth (4) comprises skeleton (4-1) and covers plastics film (4-2) on the skeleton; Auxiliary heating system is made up of process furnace (25) and thermal cycling pipe (26) two parts, water circulating pump (27) and valve (28) are housed on thermal cycling pipe, the discharge room UNICOM of thermal cycling pipe (26) one ends and marsh gas fermentation pool (5), heating water jacket UNICOM in the other end and the process furnace (25), the thermal cycling pipe that comes out from the heating water jacket connects relatively independent natural pond liquid circulation auxiliary heating system of formation by steel marsh gas fermentation pool loam cake (12) with a plurality of marsh gas fermentation pool series connection.
2, controlled cluster case type anaerobically fermenting according to claim 1 and natural pond liquid are processed into complete equipment, it is characterized in that: each above-mentioned biogas fermentation tankage is 10 cubic metres, display combination according to fermentation load and fermentation volume, its combined volume can be above 100 cubic metres.
3, controlled cluster case type anaerobically fermenting according to claim 1 and natural pond liquid are processed into complete equipment, it is characterized in that: the internal surface of steel marsh gas fermentation pool loam cake (12) is coated with one deck sanitas or enamel layer, and outside surface is coated with the higher absorber coatings of last layer sunlight absorption rate.
4, controlled cluster case type anaerobically fermenting according to claim 1 and natural pond liquid are processed into complete equipment, it is characterized in that: bottom the foot of a wall of methane-generating pit has the transition arc of radius r=300mm along the depth direction, it is an inclined-plane of 1: 50 that ground, methane-generating pit bottom is designed to gradient, and discharge port is located at the inclined-plane.
5, controlled cluster case type anaerobically fermenting according to claim 1 and natural pond liquid are processed into complete equipment, it is characterized in that: natural pond liquid treatment facility is housed on the thermal cycling pipe of process furnace, and this natural pond liquid treatment facility comprises setting tank (30), pretreatment pool (31), coarse filter (32), agitator (33) and secondary filter (34); Setting tank (30) is by thermal cycling pipe and coarse filter (32) UNICOM of pipeline (35,36) with process furnace (25), pretreatment pool (31) is by pipeline and coarse filter (32) UNICOM, coarse filter (32) is by pipeline and agitator (33) UNICOM, and agitator (33) is by pipeline and secondary filter (34) UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101102466A CN1257120C (en) | 2003-12-25 | 2003-12-25 | Controllable box type complete equipment for anaerobic fermentation and methane liquid treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101102466A CN1257120C (en) | 2003-12-25 | 2003-12-25 | Controllable box type complete equipment for anaerobic fermentation and methane liquid treatment |
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|---|---|
| CN1631823A CN1631823A (en) | 2005-06-29 |
| CN1257120C true CN1257120C (en) | 2006-05-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1803679A (en) * | 2005-11-26 | 2006-07-19 | 马理国 | Automatic comprehensive treatment system and method for producing biogas by using garbage, sewage and plants |
| CN100389097C (en) * | 2006-10-09 | 2008-05-21 | 西南大学 | Assembled movable manure producing and energy source utilizing apparatus |
| CN105754845A (en) * | 2014-12-19 | 2016-07-13 | 姜汉军 | A chicken manure processing device used for biogas production |
| CN107988052A (en) * | 2018-01-22 | 2018-05-04 | 黑龙江省振华新能源科技开发有限公司 | Cold marsh gas generating system and cold ground preparation of marsh-gas |
| CN110079441A (en) * | 2018-01-26 | 2019-08-02 | 华强中天流体设备（北京）有限公司 | Villages and small towns joint household biomass gas generating produces the utilization system of fertile accumulation of heat |
| CN108476822A (en) * | 2018-03-29 | 2018-09-04 | 苏斌 | A kind of greenhouse heating system and method based on aerobic flora microbial fermentation |
| CN109912153A (en) * | 2019-01-15 | 2019-06-21 | 黄河科技学院 | A kind of thermal equilibrium analysis method of marsh gas fermenting system |
| CN113511930A (en) * | 2021-07-09 | 2021-10-19 | 北京四良科技有限公司 | Container type compost fermentation workshop |
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