CN212199237U - Biological marsh gas feeding system - Google Patents
Biological marsh gas feeding system Download PDFInfo
- Publication number
- CN212199237U CN212199237U CN202020702861.5U CN202020702861U CN212199237U CN 212199237 U CN212199237 U CN 212199237U CN 202020702861 U CN202020702861 U CN 202020702861U CN 212199237 U CN212199237 U CN 212199237U
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- Prior art keywords
- solid
- liquid
- sand
- biogas
- tank
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 239000004576 sand Substances 0.000 claims abstract description 44
- 238000000855 fermentation Methods 0.000 claims abstract description 34
- 230000004151 fermentation Effects 0.000 claims abstract description 34
- 239000007787 solid Substances 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 238000003860 storage Methods 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 16
- 210000003608 fece Anatomy 0.000 claims description 11
- 239000011343 solid material Substances 0.000 claims description 8
- 239000010871 livestock manure Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 2
- 239000011344 liquid material Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000010902 straw Substances 0.000 description 12
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 241000209140 Triticum Species 0.000 description 4
- 235000021307 Triticum Nutrition 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 241000283690 Bos taurus Species 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 241000287828 Gallus gallus Species 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004460 silage Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002801 charged material Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004461 grass silage Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a biological methane feeding system, which relates to the field of biological methane preparation, and comprises a sand removing system, a solid feeding machine, a crusher, a solid-liquid conveying pump and a filtering chopper which are connected in sequence, wherein the filtering chopper is used for connecting a methane fermentation tank; the sand removal system is connected in parallel with the solid-liquid delivery pump and is used for providing sand-free liquid for fermentation; the solid-liquid delivery pump is used for integrating solid crushed aggregates and sand-free liquid, and the solid-liquid mixture is pumped into the filtering and chopping machine to be sequentially filtered and chopped and then pushed into the biogas fermentation tank. The utility model carries out sand removal pretreatment on the sand-containing excrement, effectively reduces the sand content in the excrement and reduces the abrasion to equipment; the addition of the crusher is beneficial to crushing based on the physical principle, and all levels of cutting are completed by the continuous rotation of the blades, so that the failure rate of equipment is low; meanwhile, through the scheme of firstly mixing solid-liquid materials, filtering and crushing the solid-liquid materials and then feeding the solid-liquid materials into a fermentation tank, the decomposition of the materials can be obviously accelerated, the fermentation retention time is shortened, and the yield of the methane is improved.
Description
Technical Field
The utility model relates to a biological marsh gas preparation field especially relates to a biological marsh gas feeding system.
Background
At present, the requirement of a biogas plant is not met by planting large-scale energy crops in China, and in order to solve the environmental problem of agricultural organic wastes, biogas fermentation is generally carried out by using corn straws, wheat straws and/or rice straws and the like in combination with excrement.
Except that sand is contained in excrement caused by the fact that part of cattle houses are bedridden, chicken manure needing to be treated also contains a large amount of sand, and if the sand cannot be removed in time, the sand can be deposited in a fermentation tank, so that normal operation of the fermentation tank is affected, meanwhile, irreversible abrasion damage can be caused to equipment, and the service life of the equipment is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rational in infrastructure biological marsh gas feeding system, this system can remove sand the preliminary treatment to the dirty excrement that contains sand, reduces the sand content in the dirty excrement, reduces the wearing and tearing to equipment to solve above-mentioned technical problem.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a biological methane feeding system, which comprises a sand removing system, a solid feeding machine, a crusher, a solid-liquid conveying pump and a filtering chopper which are connected in sequence, wherein the filtering chopper is used for connecting a methane fermentation tank; the sand removing system is connected in parallel with the solid-liquid conveying pump and is used for providing sand-free liquid for fermentation; the solid-liquid delivery pump is used for integrating solid crushed aggregates and sand-free liquid, and pumping a solid-liquid mixture into the filtering and chopping machine to sequentially filter and chop and push the filtered and chopped solid-liquid mixture into the biogas fermentation tank.
Optionally, the sand removing system is connected with the biogas residue and biogas slurry discharge pipe and/or the sand-containing sewage source of the biogas fermentation tank, and is used for sand removing pretreatment of the biogas residue and biogas slurry and/or the sand-containing sewage in the fermentation tank.
Optionally, a liquid storage tank is connected in parallel to the solid-liquid delivery pump, and the liquid storage tank is used for storing the sand-free liquid manure; the liquid storage pool is connected to the solid-liquid delivery pump through a liquid delivery pump.
Optionally, the sand removal system comprises a pretreatment tank and a suction system; the pretreatment tank is internally provided with a stirring device, the bottom of the pretreatment tank is provided with a conical bottom plate, and the suction system is connected with the bottom end of the conical bottom plate through a pipeline and is used for sucking sediments at the bottom of the pretreatment tank; and the liquid manure without sand on the upper part of the pretreatment tank is conveyed into the solid-liquid conveying pump and/or the biogas fermentation tank through a liquid conveying pump.
Optionally, the suction system includes a pressure storage tank, a vacuum pump disposed in the pressure storage tank, and a screw conveyor disposed on one side of the pressure storage tank, where the screw conveyor is configured to convey sand out of the pressure storage tank.
Optionally, the solid feeding machine comprises a solid storage box and a spiral stirring box, and the spiral stirring box is used for primarily stirring and chopping the solid materials; the spiral stirring box is connected with the crusher through a spiral conveyor.
Optionally, a rotary hammer and a rotary cutting blade for material crushing are provided in the crusher.
Optionally, a filtering screen and a rotary shredding blade are sequentially arranged in the filtering and shredding machine along the material flowing direction.
Optionally, the system further comprises an automatic feeding control system, the sand removing system, the solid feeding machine, the crusher, the solid-liquid conveying pump, the filtering chopper and the biogas fermentation tank are respectively and electrically connected to the automatic feeding control system, and the automatic feeding control system is used for controlling the opening and closing of each program.
Optionally, pneumatic gate valves are respectively arranged on the connecting pipelines between the components.
The utility model discloses for prior art gain following technological effect:
the utility model provides a biological marsh gas feeding system structural design is reasonable, carries out the preliminary treatment that removes sand to the dirty excrement that contains sand, effectively reduces the sand content in the dirty excrement, and then greatly reduced is to the wearing and tearing of equipment, has improved the life of equipment. The utility model discloses it does benefit to the physics principle to increase the breaker to the crop straw of blue or green storage of non, yellow storage and carries out the breakage, all accomplishes through the continuous rotation of blade to the cutting at different levels of material, therefore equipment fault rate is low. Meanwhile, the feeding system separates the biomass fibers in a mechanical treatment mode, so that the surface area of the material is obviously enlarged; through the scheme setting of mixing solid-liquid materials firstly and then entering the fermentation tank after filtering and crushing, the material decomposition is accelerated remarkably, the fermentation retention time is shortened, the methane yield is improved, and the practicability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of the biological methane feeding system of the utility model;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic structural diagram of a sand removal system in the biological methane feeding system of the utility model;
wherein the reference numerals are: 1. a sand removal system; 2. a solid feeding machine; 3. a crusher; 4. a solid-liquid delivery pump; 5. a filtration chopper; 6. a biogas fermentation tank; 7. a liquid storage tank; 8. a first liquid delivery pump; 9. a pretreatment tank; 10. a conical bottom plate; 11. a pressure storage tank; 12. a first screw conveyor; 13. a solid storage bin; 14. a spiral agitator tank; 15. a second screw conveyor; 16. a pneumatic gate valve; 17. and a second liquid delivery pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The first embodiment is as follows:
as shown in fig. 1 to 3, the present embodiment provides a biogas feeding system, which includes a solid feeder 2, a crusher 3, a sand removal system 1, a solid-liquid delivery pump 4, a filtering chopper 5, a pipeline, a pneumatic gate valve 16, and an automatic feeding control system. Wherein:
the solid feeding machine 2 is mainly used for conveying solid materials before the crushed materials such as straws are conveyed into the biogas fermentation tank 6 and comprises a solid storage box 13 and a spiral stirring box 14, wherein the solid storage box 13 is preferably made of plastic, and a conveyor belt structure is arranged in the solid storage box and is used for storing and conveying different matrixes and solid materials (such as corn silage, grass silage, whole plant silage, manure, wood chips and other more solid materials); the spiral stirring box 14 has a stirring and chopping function and is used for primarily stirring and chopping solid materials. The solid storage tank 13 and the spiral stirring tank 14 are both existing devices in the field, and the specific structural composition and the working principle are not described herein again.
The solid feeding machine 2 and the crusher 3 are connected together through the second screw conveyor 15, the second screw conveyor 15 is used for conveying the primarily crushed solid materials to the crusher 3, feeding can be utilized to the maximum extent by utilizing the principle of screw rod conveying, and the solid materials are fermented. After that, the material reaches the solid-liquid transfer pump 4 through the discharge port of the crusher 3 and is further conveyed. The crusher 3 is, among other things, a prior art device in the field, which achieves crushing of material by means of a rotary hammer and a rotary cutting blade.
As shown in fig. 3, the sand removing system 1 includes a pretreatment tank 9 and a foreign matter suction system. The sand-containing feces is sent into the pretreatment tank 9, the content of dry substances in the sand-containing feces can be reduced by recycling biogas residues and biogas slurry from the fermentation tank or cow dung slurry, and then the sediment of heavy objects can be carried out in the pretreatment tank 9 through the built-in stirring device and standing, and the sediment is periodically sucked away by the impurity suction system. The bottom of the pretreatment tank 9 is provided with a conical bottom plate 10 to improve the efficiency of removing heavy impurities. In this embodiment, the suction system mainly comprises a pressure storage tank 11, a pipeline, a vacuum pump and a screw conveyor 12, wherein two ends of the pipeline are respectively connected with the lowest point of the conical bottom plate 10 and the top of the pressure storage tank 11. When the pressure storage tank 11 is in a negative pressure state under the action of the vacuum pump, sand deposited in the pretreatment tank 9 is sucked into the pressure storage tank 11, and the sand in the pressure storage tank 11 is conveyed out through the first screw conveyor 12. And the excrement liquid without sand at the upper part in the pretreatment tank 9 is conveyed into the solid-liquid conveying pump 4 or the methane fermentation tank 6 through a second liquid conveying pump 17. The biogas fermentation tank 6 is preferably arranged in parallel, and the specific number is determined according to the actual production condition.
In this embodiment, the solid-liquid transfer pump 4 can transfer a high-viscosity liquid having a solid content of 18% through the gap between the stator and the rotor. The solid-liquid delivery pump 4 is an existing delivery pump structure, and the specific structural composition and the working principle thereof are not described herein again.
In this embodiment, the filtering chopper 5 is used to separate foreign materials in the conveyed media. Thereby protecting the system and pump product. Especially in biogas plants and agricultural technology, pebbles, wood, metal parts or impurities which need to be separated from the medium ensure that the system does not break down and reduce wear. The supply of material with a density higher than that of water, such as stones, falls by gravity into the collecting device below, so that no moving parts are needed to separate foreign matter. The geometry of the impurity filter screen ensures that the inflowing medium is continuously cleaned, and the faults and corresponding shutdown of the whole system can be avoided. Meanwhile, the rotary shredding blade is driven by the motor to rotate for cutting, and conveyed media can be well matched, so that blockage such as winding and knotting can be avoided. The filtering chopper 5 is a conventional structure, and the detailed structure and operation thereof will not be described herein.
The whole system of the embodiment comprises a manual mode and an automatic mode. When manual, the start and stop of monomer equipment can be controlled. When automatic, the whole set of equipment automatically operates. The two modes are added with interlocking control, so that material accumulation, equipment damage and the like are prevented; a forced manual mode is additionally arranged. Under special conditions, the chain can be crossed, and the equipment can be started and stopped forcibly. Generally used for trial run and overhaul. Under the automatic operation mode, through the opening and close and the operation of each procedure of automatic feeding control system control, mainly by the triplex program composition: the first part is that the ensilage and the yellow depot are mixed with liquid at the integrated solid-liquid delivery pump 4 through the crusher 3 and are pushed into each biogas fermentation tank 6. The second part is formed by humidifying and separating wheat straws, rice straws, straws and the like by a crusher, adding the wheat straws, the rice straws and the like into the crusher 3 in the first part, mixing the wheat straws, the rice straws and the like with liquid by a solid-liquid delivery pump 4, and pushing the mixture into each biogas fermentation tank 6. The third part is that the chicken manure and the cow dung water are mixed for desanding and then are pushed into the biogas fermentation tank through a single-screw pump. The green storage and yellow storage raw materials in the first part are sent to the solid feeding machine 2, the automatic control operation of the equipment starting is in a reverse starting mode, namely when the raw materials in the solid feeding machine 2 reach a preset weight, the solid-liquid conveying pump 4 and the crusher 3 are started first, then the solid feeding machine 2 is started, starting of the three equipment has certain starting delay, and the delay time can be set. The crusher 3 is a continuously operable device, the residence time of the material in the crusher 3 being determined depending on the physical properties of the charged material and the desired fermentation process, and being adjustable by the feeding ratio of the pushing system of the solid matter feeder 2. Then, the materials reach the solid-liquid delivery pump 4 through the discharge port, are mixed and pushed into the biogas fermentation tank 6. When the system is stopped, the sequence is reversed from the starting sequence. Each device is stopped after the standby delayed operation, and the purpose is to convey the raw materials remained in the device completely until the whole device stops operating.
It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. A biological marsh gas feeding system is characterized in that: the system comprises a sand removing system, a solid feeding machine, a crusher, a solid-liquid conveying pump and a filtering chopper which are sequentially connected, wherein the filtering chopper is used for connecting a biogas fermentation tank; the sand removing system is connected in parallel with the solid-liquid conveying pump and is used for providing sand-free liquid for fermentation; the solid-liquid delivery pump is used for integrating solid crushed aggregates and sand-free liquid, and pumping a solid-liquid mixture into the filtering and chopping machine to sequentially filter and chop and push the filtered and chopped solid-liquid mixture into the biogas fermentation tank.
2. The biogas feeding system according to claim 1, characterized in that: the sand removing system is connected with a biogas residue and biogas slurry discharge pipe and/or a sand-containing sewage source of the biogas fermentation tank and is used for sand removing pretreatment of the biogas residue and biogas slurry and/or the sand-containing sewage of the fermentation tank.
3. The biogas feeding system according to claim 1, characterized in that: the solid-liquid delivery pump is also connected with a liquid storage tank in parallel, and the liquid storage tank is used for storing the sand-free liquid dung; the liquid storage pool is connected to the solid-liquid delivery pump through a liquid delivery pump.
4. The biogas feeding system according to claim 2, characterized in that: the sand removal system comprises a pretreatment tank and a suction system; the pretreatment tank is internally provided with a stirring device, the bottom of the pretreatment tank is provided with a conical bottom plate, and the suction system is connected with the bottom end of the conical bottom plate through a pipeline and is used for sucking sediments at the bottom of the pretreatment tank; and the liquid manure without sand on the upper part of the pretreatment tank is conveyed into the solid-liquid conveying pump and/or the biogas fermentation tank through a liquid conveying pump.
5. The biogas feeding system according to claim 4, wherein: the suction system comprises a pressure storage tank, a vacuum pump arranged in the pressure storage tank and a screw conveyor arranged on one side of the pressure storage tank, wherein the screw conveyor is used for conveying sand out of the pressure storage tank.
6. The biogas feeding system according to claim 1, characterized in that: the solid feeding machine comprises a solid storage box and a spiral stirring box, and the spiral stirring box is used for primarily stirring and chopping solid materials; the spiral stirring box is connected with the crusher through a spiral conveyor.
7. The biogas feeding system according to claim 1, characterized in that: a rotary hammer and a rotary cutting blade for crushing materials are arranged in the crusher.
8. The biogas feeding system according to claim 1, characterized in that: and a filtering screen and a rotary shredding blade are sequentially arranged in the filtering and shredding machine along the material flowing direction.
9. The biogas feeding system according to claim 1, characterized in that: the sand removing system, the solid feeding machine, the crusher, the solid-liquid conveying pump, the filtering chopper and the biogas fermentation tank are respectively and electrically connected to the automatic feeding control system, and the automatic feeding control system is used for controlling the opening and closing of all programs.
10. The biogas feeding system according to claim 1, characterized in that: pneumatic gate valves are respectively arranged on the connecting pipelines among all the parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020702861.5U CN212199237U (en) | 2020-04-30 | 2020-04-30 | Biological marsh gas feeding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020702861.5U CN212199237U (en) | 2020-04-30 | 2020-04-30 | Biological marsh gas feeding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212199237U true CN212199237U (en) | 2020-12-22 |
Family
ID=73831302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020702861.5U Expired - Fee Related CN212199237U (en) | 2020-04-30 | 2020-04-30 | Biological marsh gas feeding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212199237U (en) |
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2020
- 2020-04-30 CN CN202020702861.5U patent/CN212199237U/en not_active Expired - Fee Related
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Granted publication date: 20201222 |
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