CN208649307U - A kind of post treatment line for marsh gas power generation - Google Patents

Abstract

A kind of post treatment line for marsh gas power generation, it includes methane fermentation tank system, methane purifying system, marsh gas power generation and complementary energy recovery system, methane fermentation tank system includes: level-one anaerobic fermentation tank (31), one grade fermemtation liquid internal circulation pump (32), level-one anaerobism heat exchanger (33), one grade fermemtation liquid discharging pump (34), B grade anaerobic fermentation tank (35), second order fermentation liquid internal circulation pump (36), secondary anaerobic heat exchanger (37), second order fermentation liquid discharging pump (38), the top of the second tank body (49) of the level-one anaerobic fermentation tank (31) and B grade anaerobic fermentation tank (35) is equipped with the stalk material import (39) with valve；Advantage is: in use, filter effect is good for this system, can greatly improve utilization rate.

Description

A kind of post treatment line for marsh gas power generation

Technical field

The utility model relates to marsh gas power generation fields, and in particular to a kind of post treatment line for marsh gas power generation.

Background technique

Currently, biogas is a kind of reproducible clean energy resource, spontaneous biogas mainly includes methane and carbon dioxide, Biogas group after processing as the energy is divided into 50-80% methane, < 1% hydrogen, 1-3% carbon monoxide and≤0.4% oxygen, thus its Calorific value is higher, and the energy being cooked, cooked frequently as family, is to boil water etc. is passed through in northern area.In addition to this, in order to further effective Ground utilizes biogas, improves the economic benefit of biogas, people are also generated electricity using biogas at present.Compared with other combustion gas, biogas The capability of antidetonance is preferable, but the safety accidents such as can set off an explosion when methane content therein is exceeded or too high oxygen level, and Wherein pollution can be generated in power generation containing impurity such as hydrogen sulfide, lead to generator job insecurity.One kind how is arranged to be used for The post treatment line of marsh gas power generation improves the biogas pretreating process before power generation, removes the pollution impurity in biogas, and improve The safety of electricity generation system improves generating efficiency, is the current technical issues that need to address.

Summary of the invention

The purpose of this utility model provides a kind of post-processing for marsh gas power generation aiming at deficiency above-mentioned at present Line.

It includes methane fermentation tank system, methane purifying system, marsh gas power generation and complementary energy recovery system to the utility model,

Methane fermentation tank system include: level-one anaerobic fermentation tank, one grade fermemtation liquid internal circulation pump, level-one anaerobism heat exchanger, One grade fermemtation liquid discharging pump, B grade anaerobic fermentation tank, second order fermentation liquid internal circulation pump, secondary anaerobic heat exchanger, second order fermentation liquid The top of second tank body of discharging pump, the level-one anaerobic fermentation tank and B grade anaerobic fermentation tank is equipped with the stalk material with valve Import, the lower part of second tank body are equipped with the chicken manure material import with valve, and the inside of second tank body is additionally provided with stirring Device, the top of second tank body are slightly above the stalk material entrance and are equipped with high-order overflow port, and high-order overflow port passes through pipe Road is connected to fermentation liquid gutter, and the top of second tank body is equipped with methane outlet, and methane outlet passes through pipeline and biogas desulfurization Device connection；The lower part of the level-one anaerobic fermentation tank is equipped with the outlet of the first fermentation liquid and the outlet of the second fermentation liquid, the first fermentation Liquid exports the inlet that the one grade fermemtation liquid internal circulation pump is connected to by pipeline, and the one grade fermemtation liquid internal circulation pump goes out liquid Mouth is connected to the level-one anaerobism heat exchanger, and the level-one anaerobism heat exchanger is connected to the level-one anaerobic fermentation tank by pipeline, To realize the interior circulation of level-one anaerobic fermentation tank；The second fermentation liquid outlet is connected to one grade fermemtation liquid discharging pump by pipeline, Stalk material import and chicken manure material inlet communication of the one grade fermemtation liquid discharging pump by pipeline and the B grade anaerobic fermentation tank, it is described The lower part of B grade anaerobic fermentation tank is equipped with the outlet of third fermentation liquid and the outlet of the 4th fermentation liquid, and the outlet of third fermentation liquid passes through pipeline It is connected to the inlet of the second order fermentation liquid internal circulation pump, the liquid outlet of the second order fermentation liquid internal circulation pump is connected to by pipeline The secondary anaerobic heat exchanger, secondary anaerobic heat exchanger are connected to B grade anaerobic fermentation tank by pipeline, to realize that secondary anaerobic is sent out The interior circulation of fermentation tank；The 4th fermentation liquid outlet is connected to the second order fermentation liquid discharging pump, the agitating device by pipeline Agitating paddle including the motor being set to above the second tank body and positioned at the tank interior and with the rotation axis connection of the motor Component, the agitating paddle component include the first agitating shaft, with the first agitating shaft it is affixed and be located at the second tank body top upper blade Portion and lower blade portion that is affixed with the first agitating shaft and being located at the second tank body lower part, the upper blade portion and the lower blade portion It is N character form structure, the upper blade portion and the lower blade portion include the first vertical portion, the second vertical portion and both ends point The not connecting rod affixed with the first vertical portion upper end and the second vertical portion lower end, the middle part of the connecting rod and first stirring Axis is affixed, first vertical portion and the second vertical portion close to the side of the second tank wall be equipped with it is multiple along the vertical direction etc. between Lug boss away from setting, the lug boss include cone portion and the affixed and screwed threaded shank with its bottom, and described Screw hole compatible with the threaded shank is equipped on one vertical portion and the second vertical portion,

Methane purifying system includes: the first surge tank, biogas cryophorus, Marsh gas desulfurizing tower, biogas drying tower, bimodulus gas Cabinet, solid-liquid separating machine, biogas slurry buffer pool and sedimentation basin, the first surge tank include buffering tank body and agitating device, buffer tank body top Portion is provided with methane outlet, and buffering tank base has biogas slurry import and sewage draining exit, and in the biogas slurry import of buffering tank body Equipped with inlet tube, liquid outlet one end of inlet tube is inserted into surge tank body, the equal drift net plate of hemispherical is equipped in surge tank body, partly Spherical drift net plate is located at the liquid outlet top of inlet tube, and agitating device includes stirring motor, the second agitating shaft and stirring blade, Stirring motor is mounted on buffering top of the tank, and drives stirring blade to rotate in surge tank body by the second agitating shaft, stirs Blade is located above the equal drift net plate of hemispherical；The side for buffering tank body is equipped with temporary storage tank, is provided with biogas slurry import at the top of temporary storage tank, The bottom of temporary storage tank is provided with leakage fluid dram, buffers and is provided with overflow port on the side wall of tank body, buffer the overflow port of tank body by U-tube and The biogas slurry import of temporary storage tank communicates, and the inlet of U-tube is located at the lower section of the equal drift net plate of hemispherical in surge tank body, and in U-shaped Filter packing layer is equipped in the liquid feeding end of pipe；It is communicated in the leakage fluid dram of temporary storage tank and biogas slurry buffer pool；The biogas slurry of fermentor exports With buffering tank body inlet tube communicate, fermentor and buffering tank body methane outlet respectively with the biogas import phase of biogas cryophorus Logical, the methane outlet of biogas cryophorus is communicated with the biogas import of Marsh gas desulfurizing tower, and Marsh gas desulfurizing tower methane outlet and biogas are dry The biogas import of dry tower communicates, and the methane outlet of biogas drying tower is communicated with the biogas import of bimodulus gas holder；Buffer the row of tank body Dirty mouth is communicated with the biogas slurry import of solid-liquid separating machine, the biogas slurry import phase of the biogas slurry outlet and biogas slurry buffer pool of solid-liquid separating machine It is logical, it is communicated in the sewage draining exit and sedimentation basin of solid-liquid separating machine,

It is communicated in second order fermentation liquid discharging pump and the first surge tank, the second tank body

It is communicated in the methane outlet at top and biogas cryophorus,

Marsh gas power generation and complementary energy recovery system include: Methane decarbonization device, dehydration device of methane, Marsh gas booster pump, granulation Machine, Biogas Generator Set, waste heat boiler, softening hydrotreater and hot-water cylinder,

The biogas delivery outlet of bimodulus gas holder is connected by air pump with the air inlet of Methane decarbonization device, Methane decarbonization dress The gas outlet set is connected with the air inlet of dehydration device of methane, the gas outlet of dehydration device of methane and the air inlet of Marsh gas booster pump Mouth is connected, and the A gas pump discharge of Marsh gas booster pump is equipped with fire arrester, and Marsh gas booster pump passes through methane combustion furnace and pelletizer Xeothermic wind inlet be connected,

Pelletizer is including the first tank body and is granulated component,

First top of the tank is provided with feed inlet, is provided with xeothermic wind inlet and wet hot-blast outlet on the first tank wall, and first Tank base is to be inverted oblique truncated cone-shaped, and the first tank base is provided with discharge port,

Being granulated component includes motor, shaft, roll-in platform and one group of pressure roller,

Motor is fixedly mounted on the first tank base, and the power output shaft of motor is connected by speed reducer and rotating shaft transmission It connecing, shaft is located in the first tank body,

Roll-in platform is fixedly mounted on the first tank body, and roll-in platform bottom is provided with shaft mounting hole, is equipped in shaft mounting hole Bearing, shaft pass through shaft mounting hole by bearing and are located in roll-in platform,

Annular is evenly arranged on the side wall of shaft the transmission shaft of one group of pressure roller one end respectively, and the top of shaft is equipped with deflection cone,

Pressure roller holding tank is provided on roll-in platform, one group of pressure roller is located in pressure roller holding tank, and one group of pressure roller is accommodated with pressure roller The slot bottom of slot fits closely, and roll-in platform bottom is provided with one group of grain forming hole, and roll-in platform bottom is equipped with one group of scraper, one group of scraper Annular is evenly arranged in shaft respectively for one end,

Annular striker plate is equipped in pressure roller holding tank at center,

The B gas pump discharge of Marsh gas booster pump is connected with Biogas Generator Set, the hot fume outlet of Biogas Generator Set It is connected with the gas inlet on waste heat boiler,

The water inlet of softening hydrotreater is connected with process water water source, softens the A water outlet and waste heat of hydrotreater The water inlet of boiler is connected, and the B water outlet for softening hydrotreater is connected with the water inlet of Biogas Generator Set,

The water outlet of Biogas Generator Set is connected with hot-water cylinder water inlet, the water outlet and Biogas Generator Set of hot-water cylinder Water inlet be connected.

Liquidometer is equipped in surge tank body.

Overflow open height of the feed liquor open height of temporary storage tank lower than buffering tank body.

The water outlet of hot-water cylinder is equipped with circulating pump, and the water outlet of circulating pump is connected with the water inlet of Biogas Generator Set, Circulating pump is electrically connected by voltage-stablizer with Biogas Generator Set.

The B gas pump discharge of Marsh gas booster pump is equipped with the second surge tank, the second surge tank delivery outlet and biogas generator Group is connected.

Annular inclined plate is equipped at the top of annular striker plate.

Xeothermic wind inlet is located above discharge port, and wet hot-blast outlet is located at below roll-in platform.

The utility model advantage is: in use, filter effect is good for this system, can greatly improve utilization rate.

Detailed description of the invention

Fig. 1 is the utility model structure diagram.

Fig. 2 is the structural schematic diagram of agitating device；

Fig. 3 is the structural schematic diagram in upper blade portion and lower blade portion；

Fig. 4 is the structural schematic diagram of lug boss.

Fig. 5 is buffer tank structure schematic diagram.

Fig. 6 is the utility model pelletizer schematic cross-sectional view.

Fig. 7 is the utility model granulator structure schematic diagram.

Fig. 8 is the utility model pelletizer blade construction schematic diagram.

Fig. 9 is the utility model pelletizer overlooking structure diagram.

Figure 10 is the utility model pelletizer annular inclined plate schematic cross-sectional view.

Specific embodiment

As shown, the utility model it include methane fermentation tank system, methane purifying system, marsh gas power generation and complementary energy return Receipts system,

Methane fermentation tank system includes: level-one anaerobic fermentation tank 31, one grade fermemtation liquid internal circulation pump 32, the heat exchange of level-one anaerobism Device 33, one grade fermemtation liquid discharging pump 34, B grade anaerobic fermentation tank 35, second order fermentation liquid internal circulation pump 36, secondary anaerobic heat exchanger 37, the second tank body 49 of second order fermentation liquid discharging pump 38, the level-one anaerobic fermentation tank 31 and B grade anaerobic fermentation tank 35 it is upper Portion is equipped with the stalk material import 39 with valve, and the lower part of second tank body 49 is equipped with the chicken manure material import 40 with valve, The inside of second tank body 49 is additionally provided with agitating device 41, and the top of second tank body 49 is slightly above the stalk material import High-order overflow port 42 is equipped at 39, high-order overflow port 42 is connected to fermentation liquid gutter, the top of second tank body 49 by pipeline Portion is equipped with methane outlet 45, and methane outlet 45 is connected to by pipeline with methane-desulfurizing device；The level-one anaerobic fermentation tank 31 Lower part is equipped with the outlet 43 of the first fermentation liquid and the second fermentation liquid outlet 44, and the first fermentation liquid outlet 43 is connected to described one by pipeline The inlet of grade fermentation liquid internal circulation pump 32, the liquid outlet of the one grade fermemtation liquid internal circulation pump 32 are connected to the level-one anaerobism and change Hot device 33, the level-one anaerobism heat exchanger 33 is connected to the level-one anaerobic fermentation tank 31 by pipeline, to realize level-one anaerobism The interior circulation of fermentor 31；The second fermentation liquid outlet 44 is connected to one grade fermemtation liquid discharging pump 34, one grade fermemtation by pipeline Liquid discharging pump 34 is connected to by pipeline with the stalk material import 39 of the B grade anaerobic fermentation tank 35 and chicken manure material import 40, described The lower part of B grade anaerobic fermentation tank 35 is equipped with the outlet 46 of third fermentation liquid and the 4th fermentation liquid outlet 47, third fermentation liquid outlet 46 The inlet of the second order fermentation liquid internal circulation pump 36, the liquid outlet of the second order fermentation liquid internal circulation pump 36 are connected to by pipeline It is connected to the secondary anaerobic heat exchanger 37 by pipeline, secondary anaerobic heat exchanger 37 is connected to B grade anaerobic fermentation tank by pipeline 35, to realize the interior circulation of B grade anaerobic fermentation tank 35；The 4th fermentation liquid outlet 47 is connected to the second level by pipeline and sends out Zymotic fluid discharging pump 38, the agitating device 41 include set on the top of the second tank body 49 motor 51 and be located at the tank interior and With the agitating paddle component 52 of the rotation axis connection of the motor 51, the agitating paddle component 52 includes the first agitating shaft 55, with the One agitating shaft 55 is affixed and is located at the upper blade portion 53 on 49 top of the second tank body and affixed with the first agitating shaft 55 and be located at the The lower blade portion 54 of two tank bodies, 49 lower part, the upper blade portion 53 and the lower blade portion 54 are N character form structure, the upper paddle Leaf portion 53 and the lower blade portion 54 include that the first vertical portion 561, the second vertical portion 562 and both ends are vertical with first respectively The affixed connecting rod 563 in 561 upper end of portion and 562 lower end of the second vertical portion, the middle part of the connecting rod 563 and first stirring Axis 55 is affixed, and first vertical portion 561 and the second vertical portion 562 are equipped with multiple along perpendicular close to the side of 49 side wall of the second tank body For histogram to the lug boss 564 of spaced set, the lug boss 564 includes cone portion 565 and affixed with its bottom and have It is equipped on the threaded shank 567 of screw thread, first vertical portion 561 and the second vertical portion 562 and is adapted with the threaded shank 567 Screw hole,

Methane purifying system include: the first surge tank 73, biogas cryophorus 74, Marsh gas desulfurizing tower 75, biogas drying tower 76, Bimodulus gas holder 77, solid-liquid separating machine 78, biogas slurry buffer pool 79 and sedimentation basin 80, the first surge tank 73 include buffering tank body 61 and stir It mixes device, buffers and be provided with methane outlet at the top of tank body 61, buffering 61 bottom of tank body has biogas slurry import and a sewage draining exit, and The biogas slurry import for buffering tank body 61 is equipped with inlet tube 63, and liquid outlet one end of inlet tube 63 is inserted into buffering tank body 61, delays It rushes and is equipped with the equal drift net plate 64 of hemispherical in tank body 61, the equal drift net plate 64 of hemispherical is located above the liquid outlet of inlet tube 63, stirring Device includes stirring motor 65, the second agitating shaft 66 and stirring blade 67, and stirring motor 65 is mounted on 61 top of buffering tank body, and Stirring blade 67 is driven to rotate in buffering tank body 61 by the second agitating shaft 66, stirring blade 67 is located at the equal drift net plate of hemispherical 64 tops；The side for buffering tank body 61 is equipped with temporary storage tank 68, and the top of temporary storage tank 68 is provided with biogas slurry import, the bottom of temporary storage tank 68 It is provided with leakage fluid dram, buffers and is provided with overflow port on the side wall of tank body 61, the overflow port of buffering tank body 61 passes through U-tube 69 and temporary storage tank 68 biogas slurry import communicates, and the inlet of U-tube 69 is located at the lower section of the equal drift net plate 64 of hemispherical in buffering tank body 61, and in U Filter packing layer 70 is equipped in the liquid feeding end of shape pipe 69；It is communicated in the leakage fluid dram of temporary storage tank 68 and biogas slurry buffer pool 79；Fermentor 72 biogas slurry outlet with buffering tank body 61 inlet tube 63 communicates, fermentor 72 and buffering tank body 61 methane outlet respectively with natural pond The biogas import of airsetting hydrophone 74 communicates, and the methane outlet of biogas cryophorus 74 is communicated with the biogas import of Marsh gas desulfurizing tower 75, 75 methane outlet of Marsh gas desulfurizing tower is communicated with the biogas import of biogas drying tower 76, the methane outlet and bimodulus of biogas drying tower 76 The biogas import of gas holder 77 communicates；The sewage draining exit of buffering tank body 61 is communicated with the biogas slurry import of solid-liquid separating machine 78, is separated by solid-liquid separation The biogas slurry outlet of machine 78 is communicated with the biogas slurry import of biogas slurry buffer pool 79, sewage draining exit and the phase in sedimentation basin 80 of solid-liquid separating machine 78 It is logical,

It is communicated in second order fermentation liquid discharging pump 38 and the first surge tank 73, the second tank body 49

It is communicated in the methane outlet 45 at top and biogas cryophorus 74,

Marsh gas power generation and complementary energy recovery system include: Methane decarbonization device 92, dehydration device of methane 93, Marsh gas booster pump 94, pelletizer 95, Biogas Generator Set 96, waste heat boiler 97, softening hydrotreater 99 and hot-water cylinder 100,

The biogas delivery outlet of bimodulus gas holder 77 is connected by air pump with the air inlet of Methane decarbonization device 92, and biogas is de- The gas outlet of carbon device 92 is connected with the air inlet of dehydration device of methane 93, and the gas outlet of dehydration device of methane 93 and biogas increase The air inlet of press pump 94 is connected, and the A gas pump discharge of Marsh gas booster pump 94 is equipped with fire arrester 98, and Marsh gas booster pump 94 passes through Methane combustion furnace is connected with the xeothermic wind inlet of pelletizer 95,

Pelletizer 95 is including the first tank body 111 and is granulated component,

It is provided with feed inlet at the top of first tank body 111, xeothermic wind inlet is provided on 111 side wall of the first tank body and damp and hot wind goes out Mouthful, 111 bottom of the first tank body is to be inverted oblique truncated cone-shaped, and 111 bottom of the first tank body is provided with discharge port,

Being granulated component includes motor 116, shaft 117, roll-in platform 118 and one group of pressure roller 119,

Motor 116 is fixedly mounted on 111 bottom of the first tank body, the power output shaft of motor 116 by speed reducer with Shaft 117 is sequentially connected, and shaft 117 is located in the first tank body 111,

Roll-in platform 118 is fixedly mounted on the first tank body 111, and 118 bottom of roll-in platform is provided with shaft mounting hole, shaft installation Bearing is equipped in hole, shaft 117 passes through shaft mounting hole by bearing and is located in roll-in platform 118,

Annular is evenly arranged on the side wall of shaft 117 transmission shaft of one group of 119 one end of pressure roller respectively, and the top of shaft 117 is set There is deflection cone 120,

Pressure roller holding tank is provided on roll-in platform 118, one group of pressure roller 119 is located in pressure roller holding tank, one group of pressure roller 119 with The slot bottom of pressure roller holding tank fits closely, and 118 bottom of roll-in platform is provided with one group of grain forming hole, and 118 bottom of roll-in platform is equipped with one Group scraper 122, annular is evenly arranged in shaft 117 respectively for one end of one group of scraper 122,

Annular striker plate 123 is equipped in pressure roller holding tank at center,

The B gas pump discharge of Marsh gas booster pump 94 is connected with Biogas Generator Set 96, the hot cigarette of Biogas Generator Set 96 Gas outlet is connected with the gas inlet on waste heat boiler 97,

The water inlet of softening hydrotreater 99 is connected with process water water source 101, softens the A water outlet of hydrotreater 99 It is connected with the water inlet of waste heat boiler 97, softens the water inlet phase of the B water outlet and Biogas Generator Set 96 of hydrotreater 99 Connection,

The water outlet of Biogas Generator Set 96 is connected with 100 water inlet of hot-water cylinder, the water outlet and biogas of hot-water cylinder 100 The water inlet of generating set 96 is connected.

It buffers and is equipped with liquidometer 71 in tank body 61.

Overflow open height of the feed liquor open height of temporary storage tank 68 lower than buffering tank body 61.

The water outlet of hot-water cylinder 100 is equipped with circulating pump 102, the water outlet of circulating pump 102 and Biogas Generator Set 96 into The mouth of a river is connected, and circulating pump 102 is electrically connected by voltage-stablizer with Biogas Generator Set 96.

The B gas pump discharge of Marsh gas booster pump 94 is equipped with the second surge tank 103,103 delivery outlet of the second surge tank and natural pond Gas generating set 96 is connected.

Annular inclined plate is equipped at the top of annular striker plate 123.

Xeothermic wind inlet is located above discharge port, and wet hot-blast outlet is located at 118 lower section of roll-in platform.

Working method: being made stalk material for stalk crushing and water-adding, and chicken manure material is made in chicken manure crushing and water-adding, by stalk material into Mouth 39 and chicken manure material import 40 feed to level-one anaerobic fermentation tank 31, then carry out one grade fermemtation, periodically start agitating device 41 It is stirred by the lower blade portion 54 of 49 lower part of upper blade portion 53 and the second tank body on 49 top of the second tank body, one grade fermemtation produces Raw biogas is post-processed by the output of methane outlet 45, passes through 32 He of one grade fermemtation liquid internal circulation pump during one grade fermemtation Level-one anaerobism heat exchanger 33 carries out the interior circulating fermentation of level-one anaerobic fermentation tank 31, passes through one grade fermemtation liquid after the completion of one grade fermemtation Fermentation liquid after one grade fermemtation is delivered to B grade anaerobic fermentation tank 35 by discharging pump 34, carries out second level in B grade anaerobic fermentation tank 35 Fermentation periodically starts agitating device 41 and passes through the lower blade of 49 lower part of upper blade portion 53 and the second tank body on 49 top of the second tank body Portion 54 is stirred, and the biogas that second order fermentation generates is post-processed by the output of methane outlet 45, logical during second order fermentation It crosses second order fermentation liquid internal circulation pump 38 and secondary anaerobic heat exchanger 37 carries out the interior circulating fermentation of B grade anaerobic fermentation tank 35, second level After the fermentation liquid after second order fermentation is delivered to the progress of the first surge tank 73 by second order fermentation liquid discharging pump 38 after fermentation It handles, is communicated in the methane outlet 45 and biogas cryophorus 74 at 49 top of the second tank body,

The fermented extraction raffinate temporary storage tank 48 of the biogas slurry being discharged out of fermentor 72 enters in buffering tank body 61 from inlet tube 63 It is broken up by the equal stream of drift net plate 64 of hemispherical, is then stirred by stirring blade 67 afterwards, accelerate point of gas and liquid in biogas slurry From the liquid flow velocity for being located at equal 64 top of drift net plate of hemispherical in agitation is faster than lower section, facilitates the impurity in biogas slurry It is deposited in buffering 61 bottom of tank body, is drained into biogas cryophorus 74 and is purified from the exhaust outlet at 61 top of buffering tank body, when When buffering the liquid level of biogas slurry in tank body 61 higher than overflow port, the biogas slurry positioned at buffering 61 bottom of tank body passes through 70 mistake of filter packing layer It is drained into after filter in temporary storage tank 68, after the liquid level that liquidometer 71 is shown is higher than setting height at the top of overflow port, represents temporary storage tank Biogas slurry is filled in 68, is stopped conveying biogas slurry into buffering tank body 61 at this time, is opened the sewage draining exit of buffering tank body 61 buffering tank body Biogas slurry in 61 and being deposited in the sediment discharge to solid-liquid separating machine 78 of buffering 61 bottom of tank body is separated, separation Impurity enters precipitating in sedimentation basin 80, and the biogas slurry in isolated liquid and temporary storage tank 68 is entered together in biogas slurry buffer pool 79 Storage, the biogas slurry reflux during buffering 61 blowdown of tank body in U-tube 69, rinses out the impurity on filter packing layer 70,

The biogas being discharged out of fermentor 72 enters the biogas in double film gas holders 77 by 92 decarburization of Methane decarbonization device, natural pond After the dehydration of qi exhaustion water installations 93, Marsh gas booster pump 94 pressurize, a part of biogas is entered in pelletizer 95 by fire arrester 98, is passed through It burns and provides thermal energy to pelletizer 95；Another biogas divides biogas to enter in Biogas Generator Set 96, generates electricity, process water A part of water that water source 101 conveys enters in Biogas Generator Set 96 after softening the processing of hydrotreater 99, sends out biogas Motor group 96 is cooled down, and another part softened water enters in waste heat boiler 97,

The hot fume that Biogas Generator Set 96 generates enters waste heat boiler 97, heats to the water in waste heat boiler 97；Circulation Hot fume a part after utilization is discharged, and another part enters fermentation process system, the hot water that Biogas Generator Set 96 generates Into in hot-water cylinder 100, the water in hot-water cylinder 100 is pumped into Biogas Generator Set 96 again by circulating pump 102, realizes that water follows Ring utilizes cooling；Fire arrester 98 can prevent propagation of flame after methyl hydride combustion；The electric energy that Biogas Generator Set 96 generates is for circulation The constantly operation of pump 102.Second surge tank 103 plays the role of temporary biogas, biogas can be made more smoothly to be transported to biogas In generating set 96.

When using pelletizer 95, material is put into from feed inlet, and material is distributed to pressure roller appearance under the action of deflection cone 120 It receives in slot, motor 116 drives shaft 117 to rotate by speed reducer, and one group of pressure roller 119 is rotated around shaft 117 holds pressure roller The material received in slot is rolled, and is penetrated one group of grain forming hole under the effect of the pressure, is generated cylindric material, scrape at one group Under the action of knife 122, cylindric material is cut into graininess, and xeothermic wind inlet is blown into hot wind by air blower, by granular object Material drying, damp and hot wind are extracted out by exhaust fan from wet hot-blast outlet；

Finished particle is discharged by discharge port；Annular striker plate 123 stops the material being extruded and bearing and shaft contacts；The One tank body, 111 bottom is to be inverted oblique truncated cone-shaped to facilitate discharging；It is equipped with annular inclined plate at the top of annular striker plate 123 and further strengthens resistance Keep off effect；Damp and hot wind outlet-inclined impeller vane setting can siphon away dry particle to avoid exhaust fan on the first tank body 111.

Claims (7)

1. a kind of post treatment line for marsh gas power generation, it is characterised in that it include methane fermentation tank system, methane purifying system, Marsh gas power generation and complementary energy recovery system,

Methane fermentation tank system includes: level-one anaerobic fermentation tank (31), one grade fermemtation liquid internal circulation pump (32), the heat exchange of level-one anaerobism Device (33), one grade fermemtation liquid discharging pump (34), B grade anaerobic fermentation tank (35), second order fermentation liquid internal circulation pump (36), second level are detested Oxygen heat exchanger (37), second order fermentation liquid discharging pump (38), the level-one anaerobic fermentation tank (31) and B grade anaerobic fermentation tank (35) The top of the second tank body (49) be equipped with the stalk material import (39) with valve, the lower part of second tank body (49) is equipped with The inside of chicken manure material import (40) with valve, second tank body (49) is additionally provided with agitating device (41), second tank body (49) top, which is slightly above at the stalk material import (39), is equipped with high-order overflow port (42), and high-order overflow port (42) passes through pipeline It is connected to fermentation liquid gutter, the top of second tank body (49) is equipped with methane outlet (45), and methane outlet (45) passes through pipeline It is connected to methane-desulfurizing device；The lower part of the level-one anaerobic fermentation tank (31) is equipped with the first fermentation liquid outlet (43) and the second hair Zymotic fluid exports (44), and the first fermentation liquid outlet (43) is connected to the feed liquor of the one grade fermemtation liquid internal circulation pump (32) by pipeline Mouthful, the liquid outlet of the one grade fermemtation liquid internal circulation pump (32) is connected to the level-one anaerobism heat exchanger (33), the level-one anaerobism Heat exchanger (33) is connected to the level-one anaerobic fermentation tank (31) by pipeline, to realize that the interior of level-one anaerobic fermentation tank (31) follows Ring；The second fermentation liquid outlet (44) is connected to one grade fermemtation liquid discharging pump (34) by pipeline, one grade fermemtation liquid discharging pump (34) it is connected to by pipeline with the stalk material import (39) of the B grade anaerobic fermentation tank (35) and chicken manure material import (40), it is described The lower part of B grade anaerobic fermentation tank (35) is equipped with third fermentation liquid outlet (46) and the 4th fermentation liquid outlet (47), third fermentation liquid Outlet (46) is connected to the inlet of the second order fermentation liquid internal circulation pump (36), the second order fermentation liquid internal circulation pump by pipeline (36) liquid outlet is connected to the secondary anaerobic heat exchanger (37) by pipeline, and secondary anaerobic heat exchanger (37) is connected to by pipeline B grade anaerobic fermentation tank (35), to realize the interior circulation of B grade anaerobic fermentation tank (35)；The 4th fermentation liquid outlet (47) is logical Piping is connected to the second order fermentation liquid discharging pump (38), and the agitating device (41) includes being set to above the second tank body (49) Motor (51) and be located at the tank interior and the agitating paddle component (52) with the rotation axis connection of the motor (51), it is described to stir Mix paddle component (52) include the first agitating shaft (55), it is affixed with the first agitating shaft (55) and upper positioned at the second tank body (49) top Blade portion (53) and it is affixed with the first agitating shaft (55) and be located at the second tank body (49) lower part lower blade portion (54), it is described on Blade portion (53) and the lower blade portion (54) are N character form structure, the upper blade portion (53) and the lower blade portion (54) Include the first vertical portion (561), the second vertical portion (562) and both ends respectively with the first vertical portion (561) upper end and second The affixed connecting rod (563) in vertical portion (562) lower end, the middle part of the connecting rod (563) and first agitating shaft (55) are solid It connects, the side of first vertical portion (561) and the second vertical portion (562) close second tank body (49) side wall is equipped with multiple along perpendicular For histogram to the lug boss (564) of spaced set, the lug boss (564) includes that cone portion (565) bottom He Yuqi is affixed And screwed threaded shank (567), it is equipped with and the spiral shell on first vertical portion (561) and the second vertical portion (562) The compatible screw hole of bar portion (567),

Methane purifying system includes: the first surge tank (73), biogas cryophorus (74), Marsh gas desulfurizing tower (75), biogas drying tower (76), bimodulus gas holder (77), solid-liquid separating machine (78), biogas slurry buffer pool (79) and sedimentation basin (80), the first surge tank (73) packet Buffering tank body (61) and agitating device are included, methane outlet is provided at the top of buffering tank body (61), buffering tank body (61) bottom is opened respectively There are biogas slurry import and sewage draining exit, and be equipped with inlet tube (63) in the biogas slurry import of buffering tank body (61), inlet tube (63) goes out Liquid mouth one end is inserted into buffering tank body (61), the equal drift net plate (64) of hemispherical is equipped in buffering tank body (61), hemispherical flows Web plate (64) is located above the liquid outlet of inlet tube (63), agitating device include stirring motor (65), the second agitating shaft (66) and Stirring blade (67), stirring motor (65) are mounted at the top of buffering tank body (61), and drive stirring by the second agitating shaft (66) Blade (67) rotation in buffering tank body (61), stirring blade (67) are located above the equal drift net plate (64) of hemispherical；Buffer tank body (61) side is equipped with temporary storage tank (68), is provided with biogas slurry import at the top of temporary storage tank (68), the bottom of temporary storage tank (68) is provided with row Liquid mouth buffers and is provided with overflow port on the side wall of tank body (61), and the overflow port of buffering tank body (61) passes through U-tube (69) and temporary storage tank (68) biogas slurry import communicates, and the inlet of U-tube (69) is located under the buffering equal drift net plate (64) of tank body (61) interior hemispherical Side, and filter packing layer (70) are equipped in the liquid feeding end of U-tube (69)；The leakage fluid dram and biogas slurry buffer pool of temporary storage tank (68) (79) it is communicated in；The biogas slurry outlet of fermentor (72) is communicated with the inlet tube (63) of buffering tank body (61), and fermentor (72) is gentle The methane outlet for rushing tank body (61) is communicated with the biogas import of biogas cryophorus (74) respectively, and the biogas of biogas cryophorus (74) goes out Mouth is communicated with the biogas import of Marsh gas desulfurizing tower (75), the biogas of Marsh gas desulfurizing tower (75) methane outlet and biogas drying tower (76) Import communicates, and the methane outlet of biogas drying tower (76) is communicated with the biogas import of bimodulus gas holder (77)；Buffer tank body (61) Sewage draining exit is communicated with the biogas slurry import of solid-liquid separating machine (78), biogas slurry outlet and biogas slurry buffer pool (79) of solid-liquid separating machine (78) Biogas slurry import communicate, is communicated in the sewage draining exit of solid-liquid separating machine (78) and sedimentation basin (80),

It is communicated in second order fermentation liquid discharging pump (38) and the first surge tank (73), the second tank body (49)

It is communicated in the methane outlet (45) at top and biogas cryophorus (74),

Marsh gas power generation and complementary energy recovery system include: Methane decarbonization device (92), dehydration device of methane (93), Marsh gas booster pump (94), pelletizer (95), Biogas Generator Set (96), waste heat boiler (97), softening hydrotreater (99) and hot-water cylinder (100),

The biogas delivery outlet of bimodulus gas holder (77) is connected by air pump with the air inlet of Methane decarbonization device (92), and biogas is de- The gas outlet of carbon device (92) is connected with the air inlet of dehydration device of methane (93), the gas outlet of dehydration device of methane (93) with The air inlet of Marsh gas booster pump (94) is connected, and the A gas pump discharge of Marsh gas booster pump (94) is equipped with fire arrester (98), biogas Booster pump (94) is connected by methane combustion furnace with the xeothermic wind inlet of pelletizer (95),

Pelletizer (95) is including the first tank body (111) and is granulated component,

It is provided with feed inlet at the top of first tank body (111), xeothermic wind inlet is provided on the first tank body (111) side wall and damp and hot wind goes out Mouthful, the first tank body (111) bottom is to be inverted oblique truncated cone-shaped, and the first tank body (111) bottom is provided with discharge port,

Being granulated component includes motor (116), shaft (117), roll-in platform (118) and one group of pressure roller (119),

Motor (116) is fixedly mounted on the first tank body (111) bottom, and the power output shaft of motor (116) passes through speed reducer It being sequentially connected with shaft (117), shaft (117) is located in the first tank body (111),

Roll-in platform (118) is fixedly mounted on the first tank body (111), and roll-in platform (118) bottom is provided with shaft mounting hole, shaft peace It filling and is equipped with bearing in hole, shaft (117) passes through shaft mounting hole by bearing and is located in roll-in platform (118),

Annular is evenly arranged on the side wall of shaft (117) transmission shaft of one group of pressure roller (119) one end respectively, the top of shaft (117) Equipped with deflection cone (120),

Pressure roller holding tank is provided on roll-in platform (118), one group of pressure roller (119) is located in pressure roller holding tank, and one group of pressure roller (119) is equal It is fitted closely with the slot bottom of pressure roller holding tank, roll-in platform (118) bottom is provided with one group of grain forming hole, roll-in platform (118) bottom Equipped with one group of scraper (122), annular is evenly arranged on shaft (117) respectively for one end of one group of scraper (122),

Annular striker plate (123) is equipped in pressure roller holding tank at center,

The B gas pump discharge of Marsh gas booster pump (94) is connected with Biogas Generator Set (96), the heat of Biogas Generator Set (96) Exhanst gas outlet is connected with the gas inlet on waste heat boiler (97),

The water inlet of softening hydrotreater (99) is connected with process water water source (101), the A water outlet of softening hydrotreater (99) Mouth is connected with the water inlet of waste heat boiler (97), softens B water outlet and Biogas Generator Set (96) of hydrotreater (99) Water inlet is connected,

The water outlet of Biogas Generator Set (96) is connected with hot-water cylinder (100) water inlet, the water outlet of hot-water cylinder (100) and natural pond The water inlet of gas generating set (96) is connected.

2. a kind of post treatment line for marsh gas power generation according to claim 1, it is characterised in that in buffering tank body (61) Equipped with liquidometer (71).

3. a kind of post treatment line for marsh gas power generation according to claim 1, it is characterised in that temporary storage tank (68) into Overflow open height of the liquid open height lower than buffering tank body (61).

4. a kind of post treatment line for marsh gas power generation according to claim 1, it is characterised in that hot-water cylinder (100) goes out The mouth of a river is equipped with circulating pump (102), and the water outlet of circulating pump (102) is connected with the water inlet of Biogas Generator Set (96), recycles Pump (102) is electrically connected by voltage-stablizer with Biogas Generator Set (96).

5. a kind of post treatment line for marsh gas power generation according to claim 1, it is characterised in that Marsh gas booster pump (94) B gas pump discharge be equipped with the second surge tank (103), the second surge tank (103) delivery outlet and Biogas Generator Set (96) phase Connection.

6. a kind of post treatment line for marsh gas power generation according to claim 1, it is characterised in that annular striker plate (123) Top is equipped with annular inclined plate.

7. a kind of post treatment line for marsh gas power generation according to claim 1, it is characterised in that xeothermic wind inlet is located at Above discharge port, wet hot-blast outlet is located at below roll-in platform (118).