CN102302871A - Automatic methane liquid backflushing deep filtering equipment - Google Patents
Automatic methane liquid backflushing deep filtering equipment Download PDFInfo
- Publication number
- CN102302871A CN102302871A CN201110165353A CN201110165353A CN102302871A CN 102302871 A CN102302871 A CN 102302871A CN 201110165353 A CN201110165353 A CN 201110165353A CN 201110165353 A CN201110165353 A CN 201110165353A CN 102302871 A CN102302871 A CN 102302871A
- Authority
- CN
- China
- Prior art keywords
- liquid
- aggregate
- tank body
- natural pond
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to automatic methane liquid backflushing deep filtering equipment. The equipment comprises a base, a water separator, and a first filtering tank body and a second filtering tank body which are arranged on the base, wherein the upper parts and the lower parts of the first filtering tank body and the second filtering tank body are provided with a first liquid inlet water distributor and a second liquid inlet water distributor, and a first liquid outlet water distributor and a second liquid outlet water distributor; one end of a first liquid inlet branch pipe and one end of a second liquid inlet branch pipe are communicated with the first liquid inlet water distributor and the second liquid inlet water distributor, and the other end of the first liquid inlet branch pipe and the other end of the second liquid inlet branch pipe are communicated with a liquid inlet main pipe; a backflushing pipe is communicated with the first liquid inlet branch pipe and the second liquid inlet branch pipe through a first backflushing branch pipe and a second backflushing branch pipe respectively; the first liquid outlet water distributor and the second liquid outlet water distributor are communicated with the lower part of the water separator; and the upper part of the water separator is provided with a liquid outlet main pipe. The equipment is applied to a methane liquid irrigation project of facility agriculture, can deeply filter methane liquid, effectively removes solid impurities and suspended matters from the methane liquid, and realizes the normal, stable and reliable operation of the methane liquid irrigation project.
Description
Technical field:
The invention belongs to industrialized agriculture and irrigate filtration art.Relate to a kind of natural pond liquid recoil automatically automatically cleaning and in-depth filtration equipment, particularly be the natural pond liquid with automatic recoil self-cleaning function of on a kind of agriculture project natural pond liquid fertilizer material utilization the being irrigated in-depth filtration equipment that recoils automatically.
Background technology:
At present domestic continuous development along with the large-scale cultivation industry, the excrement dirt of plant is treated as the problem that people are concerned about, and the construction of big-and-middle-sized biogas engineering is that dirty processing of the excrement of large-scale cultivation field found strong solution route.It is a fermentation raw material with the feces of farm, obtains clean energy resource biogas, thereby improves plant's environment, reduces the pressure that it causes environment.But meanwhile big-and-middle-sized biogas engineering has produced a large amount of anaerobism residue natural pond liquid again, as can not get abundant reasonable use, and natural pond liquid will cause secondary pollution once more to environment, thus the development of restriction large-scale cultivation industry.Therefore problems such as the fertilising that can effectively solve the scale agricultural planting is difficult, labour intensity is big, production efficiency is low are irrigated in natural pond liquid fertilizer material utilization, effectively avoid natural pond liquid secondary pollution, guarantee the high-quality cultivation of agricultural product simultaneously.The natural pond liquid engineering irrigation of scale has proposed higher engineering requirement to traditional natural pond liquid filtration treatment technology.Domestic existing relevance filtering equipment can't satisfy natural pond liquid engineering irrigation requirement at present, and this also causes natural pond liquid engineering irrigation to be difficult to the large tracts of land popularization.
Summary of the invention:
The irrigation system liquid outlet that the objective of the invention is to run in the natural pond liquid fertilizer material utilization irrigation to present domestic scale biogas engineering stops up and filtration system operation stall problem; And natural pond liquid engineering irrigation is difficult to the problem of long-term normal operation; Adopt machinery, method physics, no chemical addition agent; A kind of solid impurity and the suspension that can effectively remove in the liquid of natural pond is provided; Guarantee engineering irrigation operation steady in a long-term, effectively stop natural pond liquid irrigation system liquid outlet and stop up the natural pond liquid that moves stall with the natural pond liquid filtration system in-depth filtration equipment that recoils automatically with automatic recoil self-cleaning function.
The objective of the invention is to realize like this:
The natural pond of the present invention liquid in-depth filtration equipment that recoils automatically; Comprise base, base-mounted water knockout drum; Be loaded on first on the base respectively and filter tank body, the second filtration tank body; First, second upper and lower part of filtering tank body has the first feed liquor water-locator, the first fluid water-locator, the second feed liquor water-locator, the second fluid water-locator respectively; One end of first liquid feeding sub-tube, second liquid feeding sub-tube is communicated with the first feed liquor water-locator, the second feed liquor water-locator respectively and the other end is responsible for feed liquor respectively and is communicated with, and recoil tube is in charge of, second is recoiled to be in charge of and be communicated with first liquid feeding sub-tube, second liquid feeding sub-tube respectively through first recoil, and first liquid inlet control valve, second liquid inlet control valve are arranged respectively on first, second liquid feeding sub-tube; First, second recoil is in charge of has the first recoil control valve respectively, the second recoil control valve; First, second fluid water-locator is communicated with the water knockout drum bottom respectively, and the fluid person in charge is equipped with on water knockout drum top, and fluid is equipped with out hydraulic control valve on being responsible for.
Have three layers of aggregate layer in each above-mentioned tank body at least; The diameter of the upper strata aggregate layer aggregate in the adjacent bone bed of material is less than the diameter of adjacent lower floor aggregate layer aggregate; Filter in the tank body and be furnished with at least three layers of aggregate layer; The quantity of aggregate layer depends on the needs, and the major diameter size aggregate of arranging in the bottom can form many void spaces, and this kind arrangement can guarantee that the fluid water-locator is not blocked by aggregate.
The diameter of the upper strata aggregate layer aggregate in the above-mentioned adjacent bone bed of material is 0.4 times of diameter of adjacent lower floor aggregate layer aggregate; Aggregate is up arranged more; The aggregate diameter dimension can become 0.4 times of relation to diminish; This kind arrangement can guarantee effectively that each layer aggregate is evenly distributed; Reduce the phenomenon that the upper strata aggregate is slipped to lower floor and take place, and can effectively filter out solid impurity and the suspension in the liquid of natural pond, to keep certain space be the eliminating of the solid impurity that helps being filtered in the work of recoil automatically cleaning time the and suspension and reduce the possibility of the tiny aggregate of last layer with backflush liquid entering feed liquor water-locator filtering tank body top.
Aggregate layer in each above-mentioned tank body is five layers, and ground floor aggregate thickness is 350mm, aggregate diameter 62.5mm; Second layer aggregate layer thickness is 350mm, aggregate diameter 25mm; The 3rd layer of aggregate layer thickness is 350mm, aggregate diameter 10mm; The 4th layer of aggregate layer thickness is 350mm, aggregate diameter 4mm; Layer 5 aggregate layer thickness is 350mm, aggregate diameter 1.6mm.
Above-mentioned control valve is ball valve or gate valve, also can be other control valve.
Above-mentioned feed liquor be responsible for the fluid person in charge on the identical pressure gauge of range is housed respectively.
Above-mentioned each filtered the tank body top has charging aperture, and filtering tank body middle part and bottom has cleaning eye respectively, and charging aperture and cleaning eye use blind plate sealing.
Above-mentioned feed liquor water-locator is combined by several sections steel pipes, has on every section steel pipe that diameter is identical, the fluid aperture of disposed at equal distance.
Above-mentioned fluid water-locator is combined by several sections steel pipes, has on every section steel pipe that diameter is identical, the feed liquor aperture of disposed at equal distance.
During filtration work of the present invention: at first make the liquid inlet control valve on first, second liquid feeding sub-tube be held open state, the recoil control valve that first, second recoil the is in charge of state that keeps shut guarantees that the hydraulic control valve that goes out that fluid is responsible for is held open state.Start solution feed pump, the natural pond liquid that needs are filtered imports in the filtration tank body through the feed liquor person in charge, promptly gets into the normal filtration duty.Natural pond liquid filters through the aggregate that filters in the tank body, can effectively remove solid impurity and suspension in the liquid of natural pond.Natural pond liquid after the filtration is responsible for from fluid and is delivered to the liquid irrigation pipe network system of natural pond.
The pressure difference value that the pressure gauge that pressure gauge on feed liquor is responsible for is responsible for fluid is surveyed is during greater than the pressure difference value of normal filtration work, and the automatically cleaning that recoils is automatically operated.
When the present invention recoils automatically cleaning work automatically: at first make a liquid inlet control valve on the liquid feeding sub-tube be held open state; Another liquid feeding sub-tube liquid inlet control valve state that keeps shut; The recoil control valve that the corresponding recoil of liquid feeding sub-tube that liquid inlet control valve is opened the is in charge of state that keeps shut; Another recoil is in charge of the recoil control valve and is held open state, and what make that fluid is responsible for goes out the hydraulic control valve state that keeps shut.Start solution feed pump, this moment, natural pond liquid carried out filtration treatment through a filtration tank body earlier, and the natural pond liquid after filtration reverse flow is again crossed another filtration tank body, and this impurity screening that filters in the tank body is discharged through recoil tube.
Need filter tank body to another and recoil automatically automatically cleaning when work, the control valve state that can change on liquid feeding sub-tube and the recoil tube gets final product.
The present invention adopts machinery, method physics, no chemical addition agent, and stable, high efficient and reliable is removed solid impurity and suspension in the liquid of natural pond, makes the natural pond liquid of output satisfy the requirement of irrigation system liquid outlet fully, and the assurance irrigation system is not stopped up; Through automatic recoil automatically cleaning work, the filtration aggregate is used for a long time, guarantee filtration system operation steady in a long-term.Through with biogas engineering and the supporting use of industrialized agriculture, both efficiently solved natural pond liquid secondary pollution problem, for natural pond liquid is used for the large-scale planting agricultural fertilizer technical guarantee is provided again.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is A-A cutaway view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is B-B cutaway view of Fig. 1
Fig. 5 is C-C cutaway view of Fig. 1
The specific embodiment:
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, the liquid in-depth filtration equipment that recoils automatically in natural pond in the present embodiment comprises base 1, is loaded on first on the base side by side and filters tank body 2 and second and filter tank body 3.The first feed liquor water-locator 4, the second feed liquor water-locator 5 are arranged respectively at first, second top of filtering tank body.The upper end of two feed liquor water-locators is connected with first liquid feeding sub-tube 6, second liquid feeding sub-tube, 7 one ends that the upper end is separately fixed at first, second tank body top respectively.Feed liquor be responsible for 8 with and liquid feeding sub-tube 6,7 other ends that communicate of two feed liquor water-locators be connected.Recoil tube 9 through first recoil be in charge of 93, second recoil be in charge of 94 with and the liquid feeding sub-tube 6,7 that communicates of two feed liquor water-locators be connected.The first fluid water-locator 10 and the second fluid water-locator 11 are arranged at first, second bottom of filtering tank body.One end of first, second fluid water-locator passes first, second filtering tank body sidewall respectively and is communicated with base-mounted water knockout drum 12 bottoms.Fluid is responsible for 13 and is communicated with the top of water knockout drum.Each filters in the tank body five layers of aggregate is housed respectively; Ground floor aggregate layer 141 thickness are 350mm, aggregate diameter 62.5mm; Second layer aggregate layer 142 thickness are 350mm, aggregate diameter 25mm; The 3rd layer of aggregate layer 143 thickness are 350mm, aggregate diameter 10mm; The 4th layer of aggregate layer 144 thickness are 350mm, aggregate diameter 4mm; Layer 5 aggregate layer 145 thickness are 350mm, aggregate diameter 1.6mm.
The identical pressure gauge 81 and pressure gauge 131 of one group of range that is installed on the feed liquor person in charge and the fluid person in charge as shown in Figure 1.
The first feed liquor ball valve 61 and the second feed liquor ball valve 71 are installed on first, second liquid feeding sub-tube as shown in Figure 1.
First, second recoil as shown in Figure 1 be in charge of be equipped with on 93,94 first the recoil ball valve 91 and second the recoil ball valve 92.
Fluid as shown in Figure 1 is equipped with fluid ball valve 132 on being responsible for.
Like Fig. 1, Fig. 2, shown in Figure 3; Filter tank body 2,3 tops charging aperture 23 and charging aperture 33 are arranged respectively; Filtering tank body 2,3 middle parts and bottom has cleaning eye 22, cleaning eye 24 and cleaning eye 32, cleaning eye 34 respectively, and charging aperture and cleaning eye use blind plate sealing.
Like Fig. 1, shown in Figure 4, the feed liquor water-locator is combined by several sections steel pipes, has on every section steel pipe that diameter is identical, the fluid aperture 41 of disposed at equal distance.
Like Fig. 1, shown in Figure 5, the fluid water-locator is combined by several sections steel pipes, has on every section steel pipe that diameter is identical, the feed liquor aperture 101 of disposed at equal distance.
During filtration work of the present invention: guarantee that at first the ball valve 61 on first, second liquid feeding sub-tube is held open state with ball valve 71; Guarantee ball valve 91 that first, second recoil is in charge of and ball valve 92 state that keeps shut, guarantee that the ball valve 132 that fluid is responsible for is held open state.Start solution feed pump, the natural pond liquid that needs are filtered imports in the filtration tank body through the feed liquor person in charge, promptly gets into the normal filtration duty.Natural pond liquid filters through the multilayer aggregate that filters in the tank body, can effectively remove solid impurity and suspension in the liquid of natural pond.Natural pond liquid after the filtration is responsible for from fluid and is delivered to the liquid irrigation pipe network system of natural pond.
The pressure difference value that the pressure gauge 131 that pressure gauge 81 on feed liquor is responsible for is responsible for fluid is surveyed is during greater than the pressure difference value of normal filtration work, the automatically cleaning that recoils automatically operation.
When the present invention recoils automatically cleaning work automatically: guarantee that at first the ball valve 61 on first liquid feeding sub-tube is held open state; Ball valve 71 on second liquid feeding sub-tube state that keeps shut; Guarantee ball valve 91 that first recoil is in charge of state that keeps shut; Second ball valve 92 be in charge of of recoil is held open state, guarantees ball valve 132 that fluid the is responsible for state that keeps shut.Start solution feed pump, this moment, natural pond liquid carried out filtration treatment through filtering tank body 2 earlier, and the natural pond liquid after the filtration is reverse flow filtration tank body 3 again, and this impurity screening that filters in the tank body 3 is discharged through recoil tube.
When recoiling automatically cleaning work automatically to filtering tank body 2; Guarantee that the ball valve 71 on second liquid feeding sub-tube is held open state; Ball valve 61 on first liquid feeding sub-tube state that keeps shut; Guarantee ball valve 92 that second recoil is in charge of state that keeps shut, the ball valve 91 that first recoil is in charge of is held open state, guarantees ball valve 132 that fluid the is responsible for state that keeps shut.Starting solution feed pump at last gets final product.
In the present embodiment each filtered in the tank body and is furnished with five layers of aggregate, and the major diameter size aggregate of arranging in the bottom can form many void spaces, and this kind arrangement can guarantee that the fluid water-locator is not blocked by aggregate.Aggregate arranges up that more the aggregate diameter dimension becomes 0.4 times of relation to diminish, and this kind arrangement can guarantee effectively that each layer aggregate is evenly distributed, and reduces the phenomenon generation that the upper strata aggregate is slipped to lower floor, and can effectively filter out solid impurity and the suspension in the liquid of natural pond.To keep certain space be the eliminating of the solid impurity that helps being filtered in the work of recoil automatically cleaning time the and suspension and reduce the possibility of the tiny aggregate of last layer with backflush liquid entering feed liquor water-locator filtering tank body top.
The present invention can have multiple change, as changing the number of filtering tank body, changes the number of plies of filtering tank body in-seam material.
The foregoing description is that foregoing of the present invention is further described, but should this scope that is interpreted as the above-mentioned theme of the present invention only not limited to the foregoing description.All technology that realizes based on foregoing all belong to scope of the present invention.
Claims (9)
1. the natural pond liquid in-depth filtration equipment that recoils automatically; It is characterized in that comprising base, base-mounted water knockout drum, be loaded on first on the base respectively and filter tank body, second and filter tank body; First, second upper and lower part of filtering tank body has the first feed liquor water-locator, the first fluid water-locator, the second feed liquor water-locator, the second fluid water-locator respectively; One end of first liquid feeding sub-tube, second liquid feeding sub-tube is communicated with the first feed liquor water-locator, the second feed liquor water-locator respectively and the other end is responsible for feed liquor respectively and is communicated with; Recoil tube through first recoil be in charge of, second recoil is in charge of respectively and is communicated with first liquid feeding sub-tube, second liquid feeding sub-tube; First liquid inlet control valve, second liquid inlet control valve are arranged respectively on first, second liquid feeding sub-tube, and first, second recoil is in charge of has the first recoil control valve respectively, the second recoil control valve, and first, second fluid water-locator is communicated with the water knockout drum bottom respectively; The fluid person in charge is equipped with on water knockout drum top, and fluid is equipped with out hydraulic control valve on being responsible for.
2. the liquid in-depth filtration equipment that recoils automatically in natural pond as claimed in claim 1 is characterized in that having three layers of aggregate layer in each tank body at least, and the diameter of the upper strata aggregate layer aggregate in the adjacent bone bed of material is less than the diameter of adjacent lower floor aggregate layer aggregate.
3. the natural pond as claimed in claim 2 liquid in-depth filtration equipment that recoils automatically, the diameter that it is characterized in that the upper strata aggregate layer aggregate in the adjacent bone bed of material are 0.4 times of diameter of adjacent lower floor aggregate layer aggregate.
4. the liquid in-depth filtration equipment that recoils automatically in natural pond as claimed in claim 3 is characterized in that the aggregate layer in each tank body is five layers, and ground floor aggregate layer thickness is 350mm, and the aggregate diameter is 62.5mm; Second layer aggregate layer thickness is 350mm, and the aggregate diameter is 25mm; The 3rd layer of aggregate layer thickness is 350mm, aggregate diameter 10mm; The 4th layer of aggregate layer thickness is 350mm, aggregate diameter 4mm; Layer 5 aggregate layer thickness is 350mm, aggregate diameter 1.6mm.
5. like the described natural pond of one of claim 1～4 liquid in-depth filtration equipment that recoils automatically, it is characterized in that control valve is ball valve or gate valve.
6. like the described natural pond of one of claim 1～4 liquid in-depth filtration equipment that recoils automatically, it is characterized in that feed liquor be responsible for the fluid person in charge on the identical pressure gauge of range is housed respectively.
7. like the described natural pond of one of claim 1～4 liquid in-depth filtration equipment that recoils automatically, it is characterized in that each filters tank body top charging aperture is arranged, filtering the tank body middle part has cleaning eye respectively with the bottom, charging aperture and cleaning eye use blind plate sealing.
8. like the described natural pond of one of claim 1～4 liquid in-depth filtration equipment that recoils automatically, it is characterized in that the feed liquor water-locator is combined by several sections steel pipes, have on every section steel pipe that diameter is identical, the fluid aperture of disposed at equal distance.
9. like the described natural pond of one of claim 1～4 liquid in-depth filtration equipment that recoils automatically, it is characterized in that the fluid water-locator is combined by several sections steel pipes, have on every section steel pipe that diameter is identical, the feed liquor aperture of disposed at equal distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101653533A CN102302871B (en) | 2011-06-20 | 2011-06-20 | Automatic methane liquid backflushing deep filtering equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101653533A CN102302871B (en) | 2011-06-20 | 2011-06-20 | Automatic methane liquid backflushing deep filtering equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102302871A true CN102302871A (en) | 2012-01-04 |
| CN102302871B CN102302871B (en) | 2013-06-12 |
Family
ID=45376842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101653533A Active CN102302871B (en) | 2011-06-20 | 2011-06-20 | Automatic methane liquid backflushing deep filtering equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102302871B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527147A (en) * | 2012-03-02 | 2012-07-04 | 浙江省农业科学院 | Graded filtering and steam combined backwashing device for biogas liquid irrigation |
| CN104350859A (en) * | 2014-11-10 | 2015-02-18 | 江苏省农业科学院 | Pipeline system capable of utilizing biogas slurry efficiently |
| CN112997658A (en) * | 2021-02-07 | 2021-06-22 | 吉林省农业科学院 | Fertigation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010912A (en) * | 1990-03-15 | 1991-04-30 | Riding Richard D | Water treating device, or similar article |
| CN2595431Y (en) * | 2003-01-17 | 2003-12-31 | 石河子大学 | Negative pressure automatic reverse rinsing filter |
| CN2936380Y (en) * | 2005-11-21 | 2007-08-22 | 陈庆生 | Unpowered waste water filtering and sterilizing treating device |
| CN201578892U (en) * | 2009-12-26 | 2010-09-15 | 吉林市翔云科技有限公司 | Fiber ball filtering element and fiber beam filtering element combined filter basin |
| CN202105503U (en) * | 2011-06-20 | 2012-01-11 | 四川省农业机械研究设计院 | Deep bed filtration device capable of automatically back washing biogas slurry |
-
2011
- 2011-06-20 CN CN2011101653533A patent/CN102302871B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010912A (en) * | 1990-03-15 | 1991-04-30 | Riding Richard D | Water treating device, or similar article |
| CN2595431Y (en) * | 2003-01-17 | 2003-12-31 | 石河子大学 | Negative pressure automatic reverse rinsing filter |
| CN2936380Y (en) * | 2005-11-21 | 2007-08-22 | 陈庆生 | Unpowered waste water filtering and sterilizing treating device |
| CN201578892U (en) * | 2009-12-26 | 2010-09-15 | 吉林市翔云科技有限公司 | Fiber ball filtering element and fiber beam filtering element combined filter basin |
| CN202105503U (en) * | 2011-06-20 | 2012-01-11 | 四川省农业机械研究设计院 | Deep bed filtration device capable of automatically back washing biogas slurry |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527147A (en) * | 2012-03-02 | 2012-07-04 | 浙江省农业科学院 | Graded filtering and steam combined backwashing device for biogas liquid irrigation |
| CN102527147B (en) * | 2012-03-02 | 2014-04-02 | 浙江省农业科学院 | Graded filtering and steam combined backwashing device for biogas liquid irrigation |
| CN104350859A (en) * | 2014-11-10 | 2015-02-18 | 江苏省农业科学院 | Pipeline system capable of utilizing biogas slurry efficiently |
| CN104350859B (en) * | 2014-11-10 | 2016-02-03 | 江苏省农业科学院 | The pipe-line system of a kind of natural pond liquid efficiency utilization |
| CN112997658A (en) * | 2021-02-07 | 2021-06-22 | 吉林省农业科学院 | Fertigation device |
| CN112997658B (en) * | 2021-02-07 | 2022-01-28 | 吉林省农业科学院 | Fertigation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102302871B (en) | 2013-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101638288B (en) | Filtration-fabric anti-clogging strengthening compound flow constructed wetland domestic sewage treatment system | |
| CN104817170B (en) | Large-scale pig farm treatment for cow manure ecological recycle system | |
| CN101638264B (en) | Sponge anti-clogging strengthening compound flow constructed wetland domestic sewage treatment device | |
| CN102718355B (en) | Breeding pollution discharge treatment system and treatment method thereof | |
| CN103053447A (en) | Purified water aquaculture system using aeration assembly | |
| CN104773922B (en) | Large-scale professional pig farm excrement dirt total system | |
| CN105724304A (en) | Layered fish and shrimp circulating water polyculture system | |
| CN102302871B (en) | Automatic methane liquid backflushing deep filtering equipment | |
| CN202105503U (en) | Deep bed filtration device capable of automatically back washing biogas slurry | |
| CN206284148U (en) | A kind of parallel cycle water fish-cultivating device of energy-saving mute type | |
| CN210406206U (en) | Automatic equipment for irrigating and fertilizing biogas slurry formula fertilizer | |
| CN205055619U (en) | Submerged automatic filtration fertilization medicine device before pump | |
| CN204475419U (en) | A kind of livestock house rain water collecting system | |
| CN107129075B (en) | Multi-module coupling treatment system and method for coal mine goaf water utilization | |
| CN202449889U (en) | Distributed water treatment device based on dynamic membrane | |
| CN206109046U (en) | A water distribution system for anaerobic reactor | |
| CN104773860B (en) | Farm pollution discharge waste liquid solid-liquid integrated separation methods and system | |
| CN204246891U (en) | A kind of sewage purification and automatic back-washing blowdown apparatus | |
| CN2858031Y (en) | Double-filter automatic back flushing seawater suspend particle removal device | |
| CN208617510U (en) | The preposition purification system of agricultural run-off drain moduleization | |
| CN106145342A (en) | A kind of water distribution system for anaerobic reactor | |
| CN204643985U (en) | The comprehensive separation system of farm pollution discharge waste liquid solid-liquid | |
| CN208814766U (en) | A kind of sewage-treatment plant | |
| CN102527147B (en) | Graded filtering and steam combined backwashing device for biogas liquid irrigation | |
| CN104996354A (en) | Ecological and environment-friendly cycling farming system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |