CN103194387A - System for generating sewage gas by straw - Google Patents
System for generating sewage gas by straw Download PDFInfo
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- CN103194387A CN103194387A CN2013101142912A CN201310114291A CN103194387A CN 103194387 A CN103194387 A CN 103194387A CN 2013101142912 A CN2013101142912 A CN 2013101142912A CN 201310114291 A CN201310114291 A CN 201310114291A CN 103194387 A CN103194387 A CN 103194387A
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Abstract
The invention provides a system for generating sewage gas by a straw, belongs to the technical field of sewage gas, and solves the technical problems that the existing sewage gas production system is complicated in structure, low in biogas production efficiency, low in automatic degree and the like. The system for generating the sewage gas by the straw comprises a straw crusher, a methane tank, and a delivery device which is arranged between the straw crusher and the methane tank; a rotating mechanism capable of driving a moving cutter cylinder and making a moving blade tangent with a fixed blade is arranged on the straw crusher; the delivery comprises a transport cylinder, a delivery pipe and a fan; the methane tank comprises a tank body, a tank cover, a connecting pipe 1 and an air storage tank; the methane tank is provided with a control mechanism 1 and a control mechanism 2; the first control mechanism 1 can stabilize the pressure of the methane tank; and the control mechanism 2 can adjust the temperature of the methane tank. The system disclosed by the invention has the advantages of simple structure, high gas production efficiency, security, stability, and high automatic degree; and the energy source can be saved.
Description
Technical field
The invention belongs to the biogas technology field, relate to a kind of production system, particularly a kind of system that utilizes stalk to produce biogas.
Background technology
Along with expanding economy, the energy has been the important leverage of sustainable economic development.At present, people use the excess load of Nonrenewable resources, make various countries all be faced with acid test to energy problem.Biogas is a kind of clean energy in China rural area, it is that the discarded stalk that utilizes farm crop produces through fermentation, and it can be used for heating up water, cooks etc., can be for the human natural resourcess such as a large amount of fire coals, timber of saving, and the biogas after the burning can not produce environment and pollute, simultaneously the thermo-efficiency height.
At present, the biogas output of methane-generating pit can be subjected to certain restriction usually, such as it can influence the output of biogas along with the variation of season and diurnal temperature.Generally speaking, when the temperature in the methane-generating pit greater than 15 ° the time, normal output biogas, and when the temperature in the methane-generating pit less than 15 ° the time, biogas yield is very low, even no longer produces biogas.
In order to improve the gas producing efficiency of methane-generating pit, need carry out break process to aerogenesis raw materials such as stalks usually.Yet people adopt manual handling stalk to methane-generating pit to ferment mostly now.Stalk is after fragmentation, and length is short, and quality is light, and more than the quantity, if artificial carrying then the trouble that can seem, not only labour intensity is big, and efficient is low, the wasting manpower and material resources, but also lose time.
Biogas pressure in the methane-generating pit also can be subjected to certain influence to the safety in production of methane-generating pit.When the biogas pressure in the methane-generating pit is excessive, the methane-generating pit vault can appear by the harm of biogas spalling, and, the phenomenon that also might cause methane-generating pit skylight opening removable cover to leak gas.So the pressure of stablizing in the methane-generating pit has important effect to the ordinary production operation of methane-generating pit.
Because many deficiencies that existing methane-generating pit production system exists, so, for those skilled in the art, be still waiting to develop a kind of new biogas production system and have many deficiencies such as biogas yield is low, controlled factordisease is many to solve existing methane-generating pit, thereby for the mankind provide more clean energy, promote economic Sustainable development fast.
Summary of the invention
The objective of the invention is to have the problems referred to above at existing technology, proposed a kind of system that utilizes stalk to produce biogas, native system has the advantages that to utilize stalk to make biogas and gas producing efficiency height, safety and stability.
Purpose of the present invention can realize by following technical proposal: a kind of system that utilizes stalk to produce biogas, comprise straw crusher, methane-generating pit and be arranged on straw crusher and methane-generating pit between e Foerderanlage; Described straw crusher comprises that inside has the machine barrel of cavity, the sidepiece of described machine barrel offers the opening for feed that is connected with internal cavities, the bottom of described machine barrel offers the discharge port that is connected with internal cavities, tool fixing frame is fixedly arranged on the described machine tube inner wall, and described tool fixing frame is in the below of described opening for feed, also be provided with the moving knife tube that can rotate in the described machine barrel, ledger-plate is fixedly arranged on the described tool fixing frame, be removably fixed with some knife sections that can be tangent with ledger-plate on the described moving knife tube, described moving knife tube also links to each other with a rotating mechanism that can drive its rotation; Described methane-generating pit comprises the pond body that can produce biogas, be hinged on the Chi Gai at place, body top, pond, pipe connecting one and deposit gas tank, be provided with electric heating tube in the body of described pond, one end of described pipe connecting one passes described Chi Gai and is connected with described pond body, and described pipe connecting one keeps sealing with Chi Gai, the other end of described pipe connecting one is connected with the described gas tank of depositing, be provided with magnetic valve one in the described pipe connecting one, described magnetic valve one also with one in the body of pond biogas pressure greater than set(ting)value for the moment automatically the controlling organization one of opens solenoid valve one link to each other, also be provided with the controlling organization two that when the temperature in the body of pond is lower than set(ting)value two, can open electric heating tube automatically in the body of described pond; Described e Foerderanlage comprises that top has the transport tube of import, transfer lime and blower fan, the bottom of described transport tube has base plate, the import of described transport tube is connected with the discharge port of described machine barrel, offer outlet on the described base plate, described transfer lime is fixed on the described base plate and with described outlet and is connected, the described transfer lime the other end is connected with described pond body, described transfer lime and described base plate are obliquely installed, the angle that forms between described transfer lime and the base plate is the obtuse angle, described blower fan is fixed on the base plate, the air outlet tube of described blower fan is towards described outlet, the barrier plate that parallels with base plate is fixedly arranged on the inwall of described transport tube, described barrier plate be in blower fan directly over, the filtering net that blower fan can be surrounded is also fixedly arranged between described barrier plate and the base plate.
This utilizes stalk to produce the system of biogas, and its working process is such, at first, discarded farm crop such as stalk are put into the opening for feed of straw crusher, and under the effect of rotating mechanism, the moving knife tube rotates, and effect in the time of ledger-plate and knife section, stalk is blocked; Then, intercepted stalk is exported from the discharge port of machine barrel, and falls into transport tube through import, falls into transfer lime through outlet, under the blowing of blower fan, makes it drop in the methane-generating pit smoothly; Then, stalk ferments, output biogas, simultaneously, stablize pressure in the methane-generating pit by controlling organization one, make the work that methane-generating pit can be stable, temperature by controlling organization two is regulated in the methane-generating pit can produce biogas, for people provide the more energy endlessly; At last, adopt collection device that biogas is collected, for people to use.
Produce in the system of biogas at the above-mentioned stalk that utilizes, described controlling organization one comprises pipe connecting two, pressure transmitter, PLC programmable logic controller one, PLC programmable logic controller two and alarm bell, described pressure transmitter, PLC programmable logic controller one and PLC programmable logic controller two all are arranged in the body of pond, described alarm bell is fixed on the pond and covers, one end of described pipe connecting two passes described Chi Gai and is connected with described pond body, and described pipe connecting two keeps sealing with Chi Gai, the other end of described pipe connecting two is connected with the described gas tank of depositing, described pipe connecting two is provided with valve, described pressure transmitter links to each other with PLC programmable logic controller two with described PLC programmable logic controller one with circuit two by circuit one respectively, described alarm bell links to each other with PLC programmable logic controller one by circuit three, and above-mentioned magnetic valve one links to each other with PLC programmable logic controller two by circuit four.Just can respond to pressure in the methane-generating pit by pressure transmitter, in PLC programmable logic controller one, set a low pressure values, in PLC programmable logic controller two, set a high pressure values, when pressure that pressure transmitter is sensed is higher than the force value of setting on the PLC programmable logic controller one, PLC programmable logic controller one will be by circuit three control alarm bell energisings, alarm bell sounds the alarm, and the valve of reminding people to open on the pipe connecting two reduces pressure to methane-generating pit; When pressure that pressure transmitter is sensed is higher than the force value of setting on the PLC programmable logic controller two, PLC programmable logic controller two will be by one energising of circuit four control magnetic valves, make pipe connecting one connection, biogas in the methane-generating pit will flow into by pipe connecting one and deposit gas tank, and methane-generating pit is reduced pressure automatically.
Produce in the system of biogas at the above-mentioned stalk that utilizes, described controlling organization two comprises PLC programmable logic controller three and temperature sensor, described temperature sensor is fixed on the place, bottom of described pond body, described PLC programmable logic controller three is fixed on the inwall of pond body, and described temperature sensor links to each other with described PLC programmable logic controller three with circuit six by circuit five respectively with above-mentioned electric heating tube.Just can respond to temperature in the methane-generating pit by temperature sensor, in PLC programmable logic controller three, set a temperature value, when temperature sensor senses to temperature when being lower than on the PLC programmable logic controller three temperature value of setting, PLC programmable logic controller three will be by circuit six control electric heating tube energisings, it is heated methane-generating pit, thereby improve the temperature in the methane-generating pit.
Produce in the system of biogas at the above-mentioned stalk that utilizes, also be provided with the whipping appts that can stir the stalk in the body of pond in the body of described pond, described whipping appts comprises agitator motor, paddle wheel and fixed link, described fixed link one end is fixed on the inwall of methane-generating pit, described agitator motor is fixed on the other end of fixed link, and the output shaft of described agitator motor is at the bottom of the pond of pond body, described paddle wheel is fixed on the output shaft of agitator motor, and described agitator motor links to each other with above-mentioned PLC programmable logic controller three by circuit seven.Agitator motor links to each other with the power supply in the external world, and by PLC programmable logic controller three its operations of control or close.By the stirring of agitator motor to feed liquids such as stalks in the methane-generating pit, make the temperature of feed liquid more even, can also make feed liquid better absorb the interior heat of methane-generating pit simultaneously, improve the output of biogas in the methane-generating pit.
Produce in the system of biogas at the above-mentioned stalk that utilizes, fixedly there is blanking plate described barrier plate end, the described blanking plate the other end is fixed on the inwall of transport tube and this end is positioned at the top of described barrier plate, and the plate face of described blanking plate and the axial line of above-mentioned transfer lime are in the same plane.Blanking plate is conducive to stalk and can be stacked on the barrier plate after the import of transport tube enters, can be along the plate face of blanking plate along sliding, and stalk directly slided in the transfer lime, thereby improve transport efficiency.
Produce in the system of biogas at the above-mentioned stalk that utilizes, the number of degrees of the angle that forms between described transfer lime and the base plate are 120 °～135 °, and the bore of described outlet is identical with the caliber size of described transfer lime, and described filtering net is in the edge of described outlet.Adopt such design to be conducive to stalk and can pass through transfer lime smoothly, and finally drop into the Chi Tizhong of methane-generating pit.
Produce in the system of biogas at the above-mentioned stalk that utilizes, described transfer lime also fixedly is useful on the bracing frame that supports transfer lime outward, be provided with magnetic valve two in the above-mentioned transfer lime, PLC programmable logic controller four is fixedly arranged on the described bracing frame, described magnetic valve two links to each other with described PLC programmable logic controller four by circuit eight, and above-mentioned blower fan links to each other with described PLC programmable logic controller four by circuit nine.Open blower fan, PLC programmable logic controller four-way is crossed circuit nine and is obtained information, and makes its energising by circuit eight control magnetic valves two, and transfer lime is communicated with; Close blower fan, PLC programmable logic controller four-way is crossed circuit nine and is obtained information, and makes its outage by circuit eight control magnetic valves two, and transfer lime is closed, and has realized the automatic control that transfer lime opens and closes.And when not carrying out that methane-generating pit carried stalk, blower fan is in closing condition, just can control the disconnection of transfer lime automatically by magnetic valve two and PLC programmable logic controller four, makes the methane-generating pit sealing, the yeasting of assurance stalk.
Produce in the system of biogas at the above-mentioned stalk that utilizes, described rotating mechanism comprises motor, shaft coupling and rotating shaft, described motor is fixed on the outer wall of machine barrel, the output shaft of described motor is in the machine barrel, described rotating shaft is passed the moving knife tube and is connected mutually with it, on machine barrel, the other end of described rotating shaft links by the output shaft of shaft coupling and motor one end of described rotating shaft by bearing fixing.Starter motor, output shaft rotate, drive the rotating shaft rotation by shaft coupling and output shaft fixed connection, and the moving knife tube has also just rotated along with rotating shaft together, and knife section and ledger-plate will intermittently cooperate, thereby block stalk.
Produce in the system of biogas at the above-mentioned stalk that utilizes, described methane-generating pit also comprises sun power electroplax and the store battery that is arranged on body top, pond, described store battery links to each other with the sun power electroplax, and above-mentioned electric heating tube, pressure transmitter, temperature sensor, alarm bell, magnetic valve one, PLC programmable logic controller one, PLC programmable logic controller two and PLC programmable logic controller three all link to each other with this store battery.Absorb sun power by the sun power electroplax, and it is converted into electric energy, be stored in the middle of the store battery, the consumer on the methane-generating pit that store battery just is able to continuously has been powered.
Produce in the system of biogas at the above-mentioned stalk that utilizes, described pond covers and offers open holes one and open holes two, above-mentioned pipe connecting one passes and is fixed in the open holes one, above-mentioned pipe connecting two passes and is fixed in the open holes two, sealing-ring one and sealing-ring two are fixedly arranged respectively on described pipe connecting one and the pipe connecting two, described sealing-ring one is in the open holes one, and described sealing-ring two is in the open holes two.Earlier pipe connecting one is put sealing-ring one, pipe connecting two is put sealing-ring two; Again pipe connecting one and sealing-ring are installed in the open holes one together one by one, pipe connecting two and sealing-ring two together are installed in the open holes two; With clay open holes one and open holes two are sealed at last, this has just realized the sealing between the lid of pipe connecting one and pipe connecting two and pond respectively.
Compared with prior art, this system that utilizes stalk to produce biogas has the following advantages:
1, the present invention just can carry out break process with the stalk that is in occurring in nature by straw crusher, and not only simple in structure, easy to maintenance, production cost is low, and the crushing efficiency height.
2, the present invention by in methane-generating pit, arrange pressure transmitter, PLC programmable logic controller once and PLC programmable logic controller two can control pressure in the methane-generating pit automatically, thereby stablize the pressure in the methane-generating pit, can methane-generating pit be broken down because pressure is excessive, influence the production of biogas.
3, the present invention just can regulate temperature in the methane-generating pit automatically by temperature sensor and PLC programmable logic controller three are set in methane-generating pit, makes stalk more be conducive to fermentation, guarantees the biogas output of stalk.
4, the present invention makes the temperature of feed liquid more even by by the stirring of agitator motor to feed liquids such as stalks in the methane-generating pit, can also make feed liquid better absorb the interior heat of methane-generating pit simultaneously, improves the output of biogas in the methane-generating pit.
5, the present invention is by the upper fixed sun power electroplax at methane-generating pit, absorb sun power by the sun power electroplax, and it is converted into electric energy, be stored in the middle of the store battery, the consumer on the methane-generating pit that store battery just is able to continuously has been powered, thereby has alleviated electricity consumption pressure greatly for native system.
6, the present invention is by arranging magnetic valve two at transfer lime, when not carrying out methane-generating pit conveying stalk, blower fan is in closing condition, just can control the disconnection of transfer lime automatically by magnetic valve two and PLC programmable logic controller four, make the methane-generating pit sealing, guarantee the yeasting of stalk.
7, the present invention arranges blanking plate by the end of barrier plate in transport tube, being conducive to stalk can not be stacked on the barrier plate after the import of transport tube enters, but can be along the plate face of blanking plate along sliding, and stalk can directly slide in the transfer lime, thus improve transport efficiency.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of straw crusher among the present invention;
Fig. 3 is the structural representation of e Foerderanlage among the present invention;
Fig. 4 is the structural representation of methane-generating pit among the present invention.
Among the figure, 1, machine barrel; 2, opening for feed; 3, discharge port; 4, tool fixing frame; 5, ledger-plate; 6, moving knife tube; 7, knife section; 8, motor; 9, shaft coupling; 10, rotating shaft; 11, transport tube; 12, transfer lime; 13, blower fan; 14, base plate; 15, barrier plate; 16, blanking plate; 17, bracing frame; 18, magnetic valve two; 19, the PLC programmable logic controller four; 20, filtering net; 21, pond body; 22, Chi Gai; 23, pipe connecting one; 24, deposit gas tank; 25, electric heating tube; 26, magnetic valve one; 27, pipe connecting two; 28, pressure transmitter; 29, the PLC programmable logic controller one; 30, the PLC programmable logic controller two; 31, alarm bell; 32, valve; 33, the PLC programmable logic controller three; 34, temperature sensor; 35, agitator motor; 36, paddle wheel; 37, fixed link; 38, sun power electroplax; 39, store battery; 40, retaining plate one; 41, retaining plate two.
Embodiment
Below be specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1, a kind of system that utilizes stalk to produce biogas comprises straw crusher, e Foerderanlage and methane-generating pit, and e Foerderanlage is arranged between straw crusher and the methane-generating pit.
As shown in Figure 2, straw crusher comprises that inside has the machine barrel 1 of cavity, and the sidepiece of machine barrel 1 offers the opening for feed 2 that is connected with internal cavities, and the bottom of machine barrel 1 offers the discharge port 3 that is connected with internal cavities.By screw retention tool fixing frame 4 is arranged on machine barrel 1 inwall, by screw retention ledger-plate 5 is arranged on the tool fixing frame 4, and tool fixing frame 4 and ledger-plate 5 all be in the below of opening for feed 2, adopt the ledger-plate 5 of screw retention can make things convenient for removing and installing of ledger-plate 5.Also be provided with the moving knife tube 6 that can rotate in the machine barrel 1, be removably fixed with the tangent knife section 7 of eight energy and ledger-plate 5 by screw on the moving knife tube 6, adopt the knife section 7 of screw retention can make things convenient for dismounting and the installation of knife section 7.Moving knife tube 6 also links to each other with a rotating mechanism that can drive its rotation.
Rotating mechanism comprises motor 8, shaft coupling 9 and rotating shaft 10, and on the outer wall of machine barrel 1, the output shaft of motor 8 is in the machine barrel 1 motor 8 by screw retention; Rotating shaft 10 is passed moving knife tube 6 and is connected mutually with it, and on machine barrel 1, the other end links by the output shaft of shaft coupling 9 with motor 8 end of rotating shaft 10 by bearing fixing.Motor 8 is to link to each other with the power supply in the external world, starter motor 8, and output shaft rotates, drive by shaft coupling 9 and the rotating shaft 10 of output shaft fixed connection and rotate, moving knife tube 6 has also just rotated along with rotating shaft 10 together, and knife section 7 and ledger-plate 5 will intermittently cooperate, thereby block stalk.
As shown in Figure 3, e Foerderanlage comprises that top has the transport tube 11 of import, transfer lime 12 and blower fan 13.The bottom of transport tube 11 has base plate 14, and the import of transport tube 11 is connected with the discharge port 3 of machine barrel 1, offers outlet on the base plate 14, and transfer lime 12 is fixed on the base plate 14 and with outlet and is connected, and transfer lime 12 the other ends are connected with pond body 21.Blower fan 13 is fixed on the base plate 14, and links to each other with the power supply in the external world, the outlet of the air outlet tube of blower fan 13 on base plate 14, and the bore of outlet is identical with the caliber size of transfer lime 12.The barrier plate 15 that parallels with base plate 14 is fixedly arranged on the inwall of transport tube 11, barrier plate 15 be in blower fan 13 directly over, the filtering net 20 that blower fan 13 can be surrounded is also fixedly arranged between barrier plate 15 and the base plate 14, filtering net 20 also is in the edge of outlet, and this filtering net 20 adopts metallic substance to make.Transfer lime 12 is obliquely installed with base plate 14, and the angle of formation between transfer lime 12 and the base plate 14 is the obtuse angle, and the number of degrees at this obtuse angle are 120 °～135 °, and in the present embodiment, this angle Selection is 125 °.Adopt such design to be conducive to stalk and can pass through transfer lime 12 smoothly, and finally drop in the pond body 21 of methane-generating pit.
Also fixedly there is blanking plate 16 barrier plate 15 ends, and the other end of blanking plate 16 is fixed on the inwall of transport tube 11 and this end is positioned at the top of barrier plate 15, and the plate face of blanking plate 16 and the axial line of transfer lime 12 are in the same plane.Blanking plate 16 is conducive to stalk and can be stacked on the barrier plate 15 after the import of transport tube 11 enters, can be along the plate face of blanking plate 16 along sliding, and stalk directly slided in the transfer lime 12, thereby improve transport efficiency.
The transfer lime 12 outer bracing frames 17 that support transfer lime 12 that also fixedly are useful on, be provided with magnetic valve 2 18 in the transfer lime 12, PLC programmable logic controller 4 19 is fixedly arranged on the bracing frame 17, magnetic valve 2 18 links to each other with PLC programmable logic controller 4 19 by circuit eight, and blower fan 13 links to each other with PLC programmable logic controller 4 19 by circuit nine.Magnetic valve 2 18 all links to each other with the power supply in the external world with PLC programmable logic controller 4 19, opens blower fan 13, and PLC programmable logic controller 4 19 obtains information by circuit nine, and makes its energising by circuit eight control magnetic valves 2 18, and transfer lime 12 is communicated with; Close blower fan 13, PLC programmable logic controller 4 19 obtains information by circuit nine, and makes its outage by circuit eight control magnetic valves 2 18, and transfer lime 12 is closed, and has realized the automatic control that transfer lime 12 opens and closes.And when not carrying out that methane-generating pit carried stalk, blower fan 13 is in closing condition, just can control the disconnection of transfer lime 12 automatically by magnetic valve 2 18 and PLC programmable logic controller 4 19, makes the methane-generating pit sealing, the yeasting of assurance stalk.
As shown in Figure 4, methane-generating pit comprises pond body 21, the pond lid 22, the pipe connecting 1 that are hinged on place, pond body 21 tops that can produce biogas and deposits gas tank 24, is provided with electric heating tube 25 in the pond body 21.One end of pipe connecting 1 passes pond lid 22 and is connected with pond body 21, and pipe connecting 1 keeps sealing with pond lid 22, the other end with deposit gas tank 24 and be connected.Be provided with magnetic valve 1 in the pipe connecting 1, magnetic valve 1 also with one in pond body 21 biogas pressure greater than set(ting)value for the moment automatically the controlling organization one of opens solenoid valve 1 link to each other, also be provided with the controlling organization two that when the temperature in the pond body 21 is lower than set(ting)value two, can open electric heating tube 25 automatically in the pond body 21.
Controlling organization one comprises pipe connecting 2 27, pressure transmitter 28, PLC programmable logic controller 1, PLC programmable logic controller 2 30 and alarm bell 31.Pressure transmitter 28, PLC programmable logic controller 1 and PLC programmable logic controller 2 30 all are arranged in the pond body 21, and alarm bell 31 is fixed on the pond lid 22.One end of pipe connecting 2 27 passes pond lid 22 and is connected with pond body 21, and pipe connecting 2 27 keeps sealing with pond lid 22, the other end with deposit gas tank 24 and be connected.Pipe connecting 2 27 is provided with valve 32, pressure transmitter 28 links to each other with PLC programmable logic controller 2 30 with PLC programmable logic controller 1 with circuit two by circuit one respectively, alarm bell 31 links to each other with PLC programmable logic controller 1 by circuit three, and magnetic valve 1 links to each other with PLC programmable logic controller 2 30 by circuit four.Just can respond to pressure in the methane-generating pit by pressure transmitter 28, in PLC programmable logic controller 1, set a low pressure values, such as 8KPa, in PLC programmable logic controller 2 30, set a high pressure values, such as 12KPa, when the pressure of sensing when pressure transmitter 28 was higher than 8KPa, PLC programmable logic controller 1 will be by 31 energisings of circuit three control alarm bells, alarm bell 31 sounds the alarm, and 32 pairs of methane-generating pits of valve of reminding people to open on the pipe connecting 2 27 reduce pressure; When the pressure of sensing when pressure transmitter 28 is higher than 12KPa, PLC programmable logic controller 2 30 will be by one 26 energisings of circuit four control magnetic valves, pipe connecting 1 is connected, and the biogas in the methane-generating pit will flow into by pipe connecting 1 and deposit gas tank 24, and methane-generating pit is reduced pressure automatically.
Offer open holes one and open holes two on the pond lid 22, pipe connecting 1 passes and is fixed in the open holes one, pipe connecting 2 27 passes and is fixed in the open holes two, sealing-ring one and sealing-ring two are fixedly arranged respectively on pipe connecting 1 and the pipe connecting 2 27, sealing-ring one is in the open holes one, and described sealing-ring two is in the open holes two.Earlier pipe connecting 1 is put sealing-ring one, pipe connecting 2 27 is put sealing-ring two; Again pipe connecting 1 and sealing-ring are installed in the open holes one together one by one, pipe connecting 2 27 and sealing-ring two together are installed in the open holes two; With clay open holes one and open holes two are sealed at last, this has just realized the sealing between pipe connecting 1 and pipe connecting 2 27 and the pond lid 22 respectively.
Controlling organization two comprises PLC programmable logic controller 3 33 and temperature sensor 34, and temperature sensor 34 is fixed on the place, bottom of pond body 21, and PLC programmable logic controller 3 33 is fixed on the inwall of pond body 21.Temperature sensor 34 links to each other with PLC programmable logic controller 3 33 with circuit six by circuit five respectively with electric heating tube 25.Just can respond to temperature in the methane-generating pit by temperature sensor 34, in PLC programmable logic controller 3 33, set a temperature value, such as 15 °, when the temperature of sensing when temperature sensor 34 is lower than 15 °, PLC programmable logic controller 3 33 will be by 25 energisings of circuit six control electric heating tubes, it is heated methane-generating pit, thereby improve the temperature in the methane-generating pit.
Also be provided with the whipping appts that can stir the stalk in the pond body 21 in the pond body 21, whipping appts comprises agitator motor 35, paddle wheel 36 and fixed link 37, fixed link 37 1 ends are fixed on the inwall of methane-generating pit, and agitator motor 35 is fixed on the other end of fixed link 37.The output shaft of agitator motor 35 is at the bottom of the pond of pond body 21, and paddle wheel 36 is fixed on the output shaft of agitator motor 35, and agitator motor 35 links to each other with PLC programmable logic controller 3 33 by circuit seven.Agitator motor 35 is to link to each other with the power supply in the external world, and by PLC programmable logic controller 3 33 its operations of control or close.Stirring by feed liquids such as stalks in 35 pairs of methane-generating pits of agitator motor makes the temperature of feed liquid more even, can also make feed liquid better absorb the interior heat of methane-generating pit simultaneously, improves the output of biogas in the methane-generating pit.
By screw retention retaining plate 1 and retaining plate 2 41 are arranged on the inwall of pond body 21, PLC programmable logic controller 3 33 and electric heating tube 25 by screw retention on retaining plate 1, an end of pressure transmitter 28, PLC programmable logic controller 1, PLC programmable logic controller 2 30 and fixed link 37 by screw retention on retaining plate 2 41.
Also has a fixed support on the pond lid 22 of methane-generating pit, fixed support comprises four columns that vertically are fixed on the pond lid 22, the other end of column fixedly has a retaining plate, by screw retention sun power electroplax 38 is arranged on the retaining plate, on the pond lid 22 store battery 39 is arranged fixedly also, store battery 39 links to each other with sun power electroplax 38, so that sun power electroplax 38 absorbs more sun power, retaining plate can make solar-electricity plate 38 fixing-stables.Electric heating tube 25, pressure transmitter 28, temperature sensor 34, alarm bell 31, magnetic valve 1, PLC programmable logic controller 1, PLC programmable logic controller 2 30 and PLC programmable logic controller 3 33 all link to each other with this store battery 39.Absorb sun power by sun power electroplax 38, and it is converted into electric energy, be stored in the middle of the store battery 39, the consumer on the methane-generating pit that store battery 39 just is able to continuously has been powered.
This utilizes stalk to produce the system of biogas, and its working process is such:
One, straw crusher
Utilize straw crusher to carry out broken stalk: at first, discarded farm crop such as stalk to be put into the opening for feed 2 of straw crusher; Then, starter motor 8, under the rotation of output shaft, moving knife tube 6 also and then rotates, and when stalk is delivered on the blade of ledger-plate 5, by the knife section 7 that rotates and fixing ledger-plate 5 engagements, stalk is cut off; At last, the stalk of cut-out falls from the discharge port 3 of machine barrel 1.
Two, e Foerderanlage
Utilize e Foerderanlage to carry stalk: at first, the stalk of cut-out enters transport tube 11 through import; Then, stalk falls within on the blanking plate 16, and because being obliquely installed of blanking plate 16, and makes stalk slide to outlet on the base plate 14 along blanking plate 16, and enters transfer lime 12; Then, by the effect of blower fan 13 stalk is blown off smoothly in methane-generating pit; At last, when finishing the transportation of stalk, close blower fan 13, the magnetic valve 2 18 that is positioned on the transfer lime 12 by 4 19 controls of PLC programmable logic controller cuts off the power supply simultaneously, and methane-generating pit disconnects with extraneous, makes the methane-generating pit sealing.
Three, methane-generating pit
Utilize methane-generating pit to carry out aerogenesis: the stalk that enters is fermented in oxygen-free environment, stalk is in the fermentative action of microorganism, output biogas, simultaneously, stablize pressure in the methane-generating pit by pressure transmitter 28, PLC programmable logic controller 1 and PLC programmable logic controller 2 30, make the work that methane-generating pit can be stable, by the temperature in temperature sensor 34 and the PLC programmable logic controller 3 33 adjusting methane-generating pits, control agitator motor 35 simultaneously, biogas can be produced endlessly, for people provide the more energy.Finally, adopt collection device that biogas is collected, for people to use.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used 1, machine barrel morely; 2, opening for feed; 3, discharge port; 4, tool fixing frame; 5, ledger-plate; 6, moving knife tube; 7, knife section; 8, motor; 9, shaft coupling; 10, rotating shaft; 11, transport tube; 12, transfer lime; 13, blower fan; 14, base plate; 15, barrier plate; 16, blanking plate; 17, bracing frame; 18, magnetic valve two; 19, the PLC programmable logic controller four; 20, filtering net; 21, pond body; 22, Chi Gai; 23, pipe connecting one; 24, deposit gas tank; 25, electric heating tube; 26, magnetic valve one; 27, pipe connecting two; 28, pressure transmitter; 29, the PLC programmable logic controller one; 30, the PLC programmable logic controller two; 31, alarm bell; 32, valve; 33, the PLC programmable logic controller three; 34, temperature sensor; 35, agitator motor; 36, paddle wheel; 37, fixed link; 38, sun power electroplax; 39, store battery; 40, retaining plate one; 41, the second-class term of retaining plate, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (10)
1. system that utilizes stalk to produce biogas, comprise straw crusher, methane-generating pit and be arranged on straw crusher and methane-generating pit between e Foerderanlage; Described straw crusher comprises that inside has the machine barrel of cavity (1), the sidepiece of described machine barrel (1) offers the opening for feed (2) that is connected with internal cavities, the bottom of described machine barrel (1) offers the discharge port (3) that is connected with internal cavities, on described machine barrel (1) inwall tool fixing frame (4) is arranged fixedly, and described tool fixing frame (4) is in the below of described opening for feed (2), also be provided with the moving knife tube (6) that can rotate in the described machine barrel (1), described tool fixing frame (4) goes up fixedly ledger-plate (5), be removably fixed with some knife sections (7) that can be tangent with ledger-plate (5) on the described moving knife tube (6), described moving knife tube (6) also links to each other with a rotating mechanism that can drive its rotation; Described methane-generating pit comprises the pond body (21) that can produce biogas, be hinged on the Chi Gai (22) at place, pond body (21) top, pipe connecting one (23) and deposit gas tank (24), be provided with electric heating tube (25) in the described pond body (21), one end of described pipe connecting one (23) passes described Chi Gai (22) and is connected with described pond body (21), and described pipe connecting one (23) keeps sealing with Chi Gai (22), the other end of described pipe connecting one (23) is connected with the described gas tank (24) of depositing, be provided with magnetic valve one (26) in the described pipe connecting one (23), described magnetic valve one (26) also with one in the pond body (21) biogas pressure greater than set(ting)value for the moment automatically the controlling organization one of opens solenoid valve one (26) link to each other, also be provided with the controlling organization two that when the temperature in the pond body (21) is lower than set(ting)value two, can open electric heating tube (25) automatically in the described pond body (21); Described e Foerderanlage comprises that top has the transport tube of import (11), transfer lime (12) and blower fan (13), the bottom of described transport tube (11) has base plate (14), the import of described transport tube (11) is connected with the discharge port (3) of described machine barrel (1), described base plate offers outlet on (14), described transfer lime (12) is fixed on described base plate (14) and upward and with described outlet is connected, described transfer lime (12) the other end is connected with described pond body (21), described transfer lime (12) is obliquely installed with described base plate (14), the angle that forms between described transfer lime (12) and the base plate (14) is the obtuse angle, described blower fan (13) is fixed on the base plate (14), the air outlet tube of described blower fan (13) is towards described outlet, the barrier plate (15) that parallels with base plate (14) is fixedly arranged on the inwall of described transport tube (11), described barrier plate (15) be in blower fan (13) directly over, the filtering net (20) that blower fan (13) can be surrounded is also fixedly arranged between described barrier plate (15) and the base plate (14).
2. the system that utilizes stalk to produce biogas according to claim 1, it is characterized in that, described controlling organization one comprises pipe connecting two (27), pressure transmitter (28), PLC programmable logic controller one (29), PLC programmable logic controller two (30) and alarm bell (31), described pressure transmitter (28), PLC programmable logic controller one (29) and PLC programmable logic controller two (30) all are arranged in the pond body (21), described alarm bell (31) is fixed on the Chi Gai (22), one end of described pipe connecting two (27) passes described Chi Gai (22) and is connected with described pond body (21), and described pipe connecting two (27) keeps sealing with Chi Gai (22), the other end of described pipe connecting two (27) is connected with the described gas tank (24) of depositing, described pipe connecting two (27) is provided with valve (32), described pressure transmitter (28) links to each other with PLC programmable logic controller two (30) with described PLC programmable logic controller one (29) with circuit two by circuit one respectively, described alarm bell (31) links to each other with PLC programmable logic controller one (29) by circuit three, and above-mentioned magnetic valve one (26) links to each other with PLC programmable logic controller two (30) by circuit four.
3. the system that utilizes stalk to produce biogas according to claim 1, it is characterized in that, described controlling organization two comprises PLC programmable logic controller three (33) and temperature sensor (34), described temperature sensor (34) is fixed on the place, bottom of described pond body (21), described PLC programmable logic controller three (33) is fixed on the inwall of pond body (21), and described temperature sensor (34) links to each other with described PLC programmable logic controller three (33) with circuit six by circuit five respectively with above-mentioned electric heating tube (25).
4. the system that utilizes stalk to produce biogas according to claim 3, it is characterized in that, also be provided with the whipping appts that can stir the stalk in the pond body (21) in the described pond body (21), described whipping appts comprises agitator motor (35), paddle wheel (36) and fixed link (37), described fixed link (37) one ends are fixed on the inwall of methane-generating pit, described agitator motor (35) is fixed on the other end of fixed link (37), and the output shaft of described agitator motor (35) is at the bottom of the pond of pond body (21), described paddle wheel (36) is fixed on the output shaft of agitator motor (35), and described agitator motor (35) links to each other with above-mentioned PLC programmable logic controller three (33) by circuit seven.
5. according to claim 1 or 2 or the 3 or 4 described systems that utilize stalk to produce biogas, it is characterized in that, fixedly there is blanking plate (16) described barrier plate (15) end, described blanking plate (16) the other end is fixed on the inwall of transport tube (11) and this end is positioned at the top of described barrier plate (15), and the axial line of the plate face of described blanking plate (16) and above-mentioned transfer lime (12) is in the same plane.
6. the system that utilizes stalk to produce biogas according to claim 5, it is characterized in that, the number of degrees of the angle that forms between described transfer lime (12) and the base plate (14) are 120 °～135 °, the bore of described outlet is identical with the caliber size of described transfer lime (12), and described filtering net (20) is in the edge of described outlet.
7. according to claim 1 or 2 or the 3 or 4 described systems that utilize stalk to produce biogas, it is characterized in that, the outer bracing frame (17) that supports transfer lime (12) that also fixedly is useful on of described transfer lime (12), be provided with magnetic valve two (18) in the above-mentioned transfer lime (12), described bracing frame (17) is gone up fixedly PLC programmable logic controller four (19), described magnetic valve two (18) links to each other with described PLC programmable logic controller four (19) by circuit eight, and above-mentioned blower fan (13) links to each other with described PLC programmable logic controller four (19) by circuit nine.
8. according to claim 1 or 2 or the 3 or 4 described systems that utilize stalk to produce biogas, it is characterized in that, described rotating mechanism comprises motor (8), shaft coupling (9) and rotating shaft (10), described motor (8) is fixed on the outer wall of machine barrel (1), the output shaft of described motor (8) is in the machine barrel (1), described rotating shaft (10) is passed moving knife tube (6) and is connected mutually with it, on machine barrel (1), the other end of described rotating shaft (10) links by the output shaft of shaft coupling (9) with motor (8) one end of described rotating shaft (10) by bearing fixing.
9. the system that utilizes stalk to produce biogas according to claim 4, it is characterized in that, described methane-generating pit also comprises sun power electroplax (38) and the store battery (39) that is arranged on pond body (21) top, described store battery (39) links to each other with sun power electroplax (38), above-mentioned electric heating tube (25), pressure transmitter (28), temperature sensor (34), alarm bell (31), magnetic valve one (26), PLC programmable logic controller one (29), PLC programmable logic controller two (30) all links to each other with this store battery (39) with PLC programmable logic controller three (33).
10. the system that utilizes stalk to produce biogas according to claim 2, it is characterized in that, offer open holes one and open holes two on the described Chi Gai (22), above-mentioned pipe connecting one (23) passes and is fixed in the open holes one, above-mentioned pipe connecting two (27) passes and is fixed in the open holes two, on described pipe connecting one (23) and the pipe connecting two (27) sealing-ring one and sealing-ring two are arranged fixedly respectively, described sealing-ring one is in the open holes one, and described sealing-ring two is in the open holes two.
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| CN201410146998.6A CN103966087B (en) | 2013-04-03 | 2013-04-03 | A kind of biogas generation systems with whipping appts |
| CN201310114291.2A CN103194387B (en) | 2013-04-03 | 2013-04-03 | System for generating sewage gas by straw |
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| CN201310114291.2A CN103194387B (en) | 2013-04-03 | 2013-04-03 | System for generating sewage gas by straw |
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| CN201410146998.6A Active CN103966087B (en) | 2013-04-03 | 2013-04-03 | A kind of biogas generation systems with whipping appts |
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Cited By (3)
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| CN107674831A (en) * | 2017-10-25 | 2018-02-09 | 杜荷昌 | The equipment that farmland rubbish is carried out filling gas disposal |
| CN109370881A (en) * | 2018-11-16 | 2019-02-22 | 凤台县瑞普农业发展有限公司 | A kind of Novel biomass pool |
| CN114698431A (en) * | 2022-05-07 | 2022-07-05 | 浙江农林大学 | Intelligent control system for returning biogas slurry to field regularly and quantitatively |
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| CN107746807A (en) * | 2017-11-29 | 2018-03-02 | 孙义 | A kind of safe and efficient intelligent methane-generating pit |
| CN113831170B (en) * | 2021-09-18 | 2022-11-01 | 湖南奇特肥业科技有限公司 | CO (carbon monoxide)2Straw gas fertilizer reaction tank |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103966087A (en) | 2014-08-06 |
| CN103966087B (en) | 2016-01-20 |
| CN103194387B (en) | 2014-06-25 |
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