CN216404367U - Straw biogas efficient pretreatment device based on biological agent - Google Patents
Straw biogas efficient pretreatment device based on biological agent Download PDFInfo
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- CN216404367U CN216404367U CN202123242022.3U CN202123242022U CN216404367U CN 216404367 U CN216404367 U CN 216404367U CN 202123242022 U CN202123242022 U CN 202123242022U CN 216404367 U CN216404367 U CN 216404367U
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Abstract
The utility model relates to the field of straw treatment, and discloses a straw biogas efficient pretreatment device based on a biological agent. The utility model solves the problem of low straw biogas conversion efficiency in the prior art, and has simple structure and convenient operation.
Description
Technical Field
The utility model relates to the field of straw treatment, in particular to a straw biogas efficient pretreatment device based on a biological agent.
Background
The method is characterized in that crop straws are used as raw materials to produce biogas through anaerobic fermentation, and due to the particularity of the straw raw materials, a series of problems occur in the straw pretreatment process, for example, cellulose in the straw raw materials is wrapped and wound by lignin and hemicellulose, so that the contact of cellulase on the straw raw materials is prevented, and therefore the crop straw raw materials need to be pretreated to improve the contact area of the cellulase on a substrate, improve the cellulose conversion rate and further improve the straw conversion and utilization efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of low conversion efficiency of straw biogas gasification in the prior art, the utility model provides a straw biogas high-efficiency pretreatment device based on a biological agent.
The utility model adopts the specific scheme that: the utility model provides a high-efficient preprocessing device of straw marsh gas based on biological agent, preprocessing device includes the pretreatment container, pretreatment container top sets up the feed inlet, pretreatment container top sets up spray set, spray set is connected with the liquid outlet of liquid equalizing basin, the liquid equalizing basin top sets up the inlet.
And the liquid regulating tank is connected with the spraying device through a liquid pump.
The top of the spraying device is connected with a telescopic rod, the telescopic rod is connected with a lifting driving device, and the lifting driving device controls the telescopic rod to move up and down.
The spraying device is a spraying rod, and spraying holes are formed in the spraying rod.
And a pressing plate is arranged below the spray rod.
The pressing plate is a semicircular pressing plate.
The number of the pressing plates is two.
The telescopic link below sets up the rotation axis, rotation axis one end is connected with spray set, the rotation axis is connected with rotary driving mechanism.
And a stirring device is arranged in the liquid regulating tank.
Compared with the prior art, the utility model has the following beneficial effects:
1. the spraying device is arranged in the pretreatment container, the fermentation liquor prepared in the liquid regulating tank is conveyed into the spraying device, and is sprayed onto the straws after passing through the spraying device, so that the straw anaerobic fermentation biogas digester pretreatment device is simple, convenient and efficient. The utility model can carry out straw treatment in large batch, and solves the problems that the straws can not be burnt and can be massively stacked in the field after the peasants in northeast China harvest in autumn; the optimized anaerobic fermentation technology is adopted to ferment the straws to produce the biogas, the bioenergy conversion of the lignocellulose raw material of the straws is exerted to the greatest extent, the pollution of the straws to the environment is reduced while the green clean energy biogas is produced, the straw treatment cost is lower and lower along with the maturity of the straw biogas technology, the biogas cost is also reduced, and the problems of fossil energy shortage and high new energy cost are solved.
2. According to the utility model, the pressing plate is arranged below the spray rod, so that the straws are more compact after being pressed down by the pressing plate, the space is saved, and the pretreatment of the straws in a large batch at one time is possible.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the spray apparatus of the present invention;
FIG. 3 is a top view of the platen and spray bar of the present invention;
FIG. 4 is a schematic diagram showing the effect of different volumes of lactobacillus agents on the yield of straw methane;
FIG. 5 is a schematic diagram showing the influence of lactobacillus agents with different volumes on the cumulative gas production of straw methane.
Wherein the reference numerals are respectively:
1. a pretreatment vessel; 2. a feed inlet; 3. a spraying device; 4. a liquid pump; 5. a liquid regulating tank; 6. a liquid inlet; 7. a liquid outlet; 8. a lift drive; 9. a connecting plate; 10. a telescopic rod; 11. and (7) pressing a plate.
Detailed Description
The present invention will be described in further detail below with reference to the attached drawings, and it should be clearly understood herein that the described embodiments are not all embodiments, but are merely illustrative and not restrictive of the present invention.
The utility model provides a straw biogas high-efficiency pretreatment device based on a biological agent, which comprises a pretreatment container 1, wherein a feed inlet 2 is formed in the top of the pretreatment container 1, a spray device 3 is arranged above the pretreatment container 1, the spray device 3 is connected with a liquid outlet 7 of a liquid adjusting tank 5, and a liquid inlet 6 is formed in the top of the liquid adjusting tank 6. The liquid adjusting tank is a container for containing liquid and has corrosion resistance.
The liquid adjusting tank 5 is connected with the spraying device 3 through a liquid pump 4. The spraying device 3 is a spraying rod, a spraying hole is formed in the spraying rod, and the liquid pump 4 pumps liquid in the liquid regulating reservoir into the spraying rod and sprays the liquid to the pretreatment container through the spraying rod.
The top of the spraying device 3 is connected with an expansion link 10, the expansion link 10 is connected with a lifting driving device 8, and the lifting driving device 8 controls the expansion link 10 to move up and down. The lifting driving device 8 is a lifting motor or an air pump. The lifting driving device drives the telescopic rod to stretch and retract, and then drives the spraying device to move up and down. One end of a telescopic rod of the spraying device extends into the pretreatment container, and the other end of the telescopic rod is connected with the lifting motor.
A rotating shaft is arranged below the telescopic rod 10, one end of the rotating shaft is connected with a spraying device, and the rotating shaft is connected with a rotary driving mechanism. The rotating shaft is connected with the telescopic rod through a bearing. The rotary driving mechanism comprises a driving motor, the output end of the driving motor is connected with a bevel gear, and the bevel gear is meshed with another bevel gear; the other bevel gear is coaxially connected with the rotating shaft, and the driving motor drives the rotating shaft to rotate.
And a pressing plate 11 is arranged below the spray rod. The pressing plate is connected through a connecting plate arranged on the outer side of the rod wall of the spray rod body, the rod wall of the spray rod is welded with the connecting plate, and the connecting plate is welded with the pressing plate.
In one embodiment, a pressure plate is arranged 10-50cm below the spray bar.
The pressing plate is a semicircular pressing plate, so that the straws in the pretreatment container can be compacted to the maximum extent.
And a stirring device is arranged in the liquid regulating tank 5. The solution in the liquid regulating reservoir is convenient to mix evenly.
The method for efficiently pretreating the straw biogas by the device comprises the following steps: adding the calculated distilled water and bacterial liquid into a liquid regulating tank from a liquid inlet, after a part of crushed straw samples enter a pretreatment container from a feed inlet, opening a liquid pump to send the liquid in the liquid regulating tank into a spraying device from the liquid outlet for spraying for 30s, closing the liquid pump, opening a lifting driving device to extend a telescopic rod, compacting the sprayed straw in the pretreatment container by using a pressing plate 11, then putting a part of straw into the pretreatment container from the feed inlet, repeating the process until the pretreatment container is filled with the straw, and reserving after pretreatment.
Wherein the distilled water and the bacteria liquid added into the liquid regulating pool are configured according to the requirements of yellow storage water content of 65 percent and adding 50-140mL of lactic acid bacteria agent.
And (3) carrying out anaerobic fermentation on the pretreated straws to produce biogas, and measuring the gas production rate every day. Referring to the attached drawings 4 and 5, the results show that the highest daily yield of methane can reach 200mL/gTS after the straw is pretreated by adding 110mL of lactobacillus agent to strengthen the yellow storage, and the highest gas yield of an experimental group for pretreating the straw by strengthening the yellow storage by adding 110mL of lactobacillus agent can reach 1119mL/gTS from the viewpoint of accumulated gas yield, which is improved by about 3 times compared with a control group, and the gas yield improvement effect is obvious, which indicates that the pretreatment efficiency of strengthening the yellow storage by using lactobacillus to promote the straw biogas is high.
The drawings and the explanation are only for one embodiment of the present invention, but the specific protection scope of the present invention is not limited to the above explanation, and any simple replacement or change within the technical idea of the present invention and the technical solution according to the present invention should be within the protection scope of the present invention.
Claims (9)
1. The straw biogas efficient pretreatment device based on the biological agent is characterized by comprising a pretreatment container (1), wherein a feed inlet is formed in the top of the pretreatment container (1), a spraying device (3) is arranged above the pretreatment container (1), the spraying device (3) is connected with a liquid outlet (7) of a liquid adjusting tank (5), and a liquid inlet (6) is formed in the top of the liquid adjusting tank (5).
2. The straw biogas efficient pretreatment device based on biological agents according to claim 1, characterized in that the liquid adjusting tank (5) is connected with the spraying device (3) through a liquid pump (4).
3. The straw biogas efficient pretreatment device based on biological agents as claimed in claim 2, wherein the top of the spraying device (3) is connected with a telescopic rod (10), the telescopic rod (10) is connected with a lifting driving device (8), and the lifting driving device (8) controls the telescopic rod (10) to stretch up and down.
4. The straw biogas efficient pretreatment device based on biological agents as claimed in claim 3, wherein the spraying device (3) is a spray rod, and spray holes are arranged on the spray rod.
5. The straw biogas efficient pretreatment device based on biological agents as claimed in claim 4, wherein a pressure plate (11) is arranged below the spray rod.
6. The straw biogas efficient pretreatment device based on biological agents as claimed in claim 5, wherein the pressing plate (11) is a semicircular pressing plate.
7. The straw biogas efficient pretreatment device based on biological agent as claimed in claim 6, wherein the number of the pressing plates (11) is two.
8. The straw biogas efficient pretreatment device based on biological agents as claimed in claim 7, wherein a rotating shaft is arranged below the telescopic rod (10), one end of the rotating shaft is connected with a spraying device, and the rotating shaft is connected with a rotation driving mechanism.
9. The straw biogas efficient pretreatment device based on biological agents as claimed in claim 1, wherein a stirring device is arranged in the liquid adjusting tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123242022.3U CN216404367U (en) | 2021-12-22 | 2021-12-22 | Straw biogas efficient pretreatment device based on biological agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123242022.3U CN216404367U (en) | 2021-12-22 | 2021-12-22 | Straw biogas efficient pretreatment device based on biological agent |
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| Publication Number | Publication Date |
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| CN216404367U true CN216404367U (en) | 2022-04-29 |
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| CN202123242022.3U Active CN216404367U (en) | 2021-12-22 | 2021-12-22 | Straw biogas efficient pretreatment device based on biological agent |
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2021
- 2021-12-22 CN CN202123242022.3U patent/CN216404367U/en active Active
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Effective date of registration: 20230525 Address after: 2nd Floor, No. 719 Keji 1st Street, Songbei District, Harbin City, Heilongjiang Province, 150028 Patentee after: Heilongjiang Boneng Ecological Environmental Protection Co.,Ltd. Address before: 150027 Building 1, miaoputun, Songhuajiang village, Songpu Town, Songbei District, Harbin City, Heilongjiang Province Patentee before: ENERGY AND ENVIRONMENT Research Institute OF HEILONGJIANG PROVINCE |