CN111643962B - A double-chamber three-stage filtration system - Google Patents
A double-chamber three-stage filtration system Download PDFInfo
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- CN111643962B CN111643962B CN202010664940.6A CN202010664940A CN111643962B CN 111643962 B CN111643962 B CN 111643962B CN 202010664940 A CN202010664940 A CN 202010664940A CN 111643962 B CN111643962 B CN 111643962B
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- 238000001914 filtration Methods 0.000 title claims abstract description 144
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000004576 sand Substances 0.000 claims abstract description 63
- 239000010865 sewage Substances 0.000 claims abstract description 25
- 238000011010 flushing procedure Methods 0.000 claims description 41
- 230000009977 dual effect Effects 0.000 claims 6
- 230000002262 irrigation Effects 0.000 abstract description 12
- 238000003973 irrigation Methods 0.000 abstract description 12
- 238000011001 backwashing Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000003475 lamination Methods 0.000 description 14
- 239000000178 monomer Substances 0.000 description 12
- 239000012535 impurity Substances 0.000 description 4
- 230000010354 integration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
本发明公开了一种双腔三级过滤系统，用以解决现有技术中农业灌溉过滤系统占地面积较大、反冲洗效率较低及易被粘稠类液体堵塞的技术问题。包括：第一过滤装置及第二过滤装置，均包括：罐体，上部左右对称设置第一砂石过滤腔及第二砂石过滤腔，中部设置一级滤水腔，下部沿中心轴纵向设置三级滤水腔，三级滤水腔的侧壁与罐体下部侧壁之间形成网式过滤腔，网式过滤腔内设置若干网式过滤筒，网式过滤筒内形成二级滤水腔，二级滤水腔内设置叠片过滤芯；进水管道及第一排污管道；第二排污管道；排水管道；与现有技术相比，本发明节简化了系统结构，提高了过滤水质、反冲洗效果和效率、系统寿命和灌溉效率，减小了占地面积，降低了建设成本。
The present invention discloses a double-chamber three-stage filtration system, which is used to solve the technical problems of large occupation area, low backwashing efficiency and easy clogging by viscous liquid in the existing agricultural irrigation filtration system. It includes: a first filtration device and a second filtration device, both of which include: a tank body, a first sand and gravel filtration chamber and a second sand and gravel filtration chamber are symmetrically arranged on the upper part, a primary water filtration chamber is arranged in the middle part, and a third water filtration chamber is arranged longitudinally along the central axis at the lower part, a mesh filtration chamber is formed between the side wall of the third water filtration chamber and the lower side wall of the tank body, a plurality of mesh filter cylinders are arranged in the mesh filtration chamber, a second water filtration chamber is formed in the mesh filter cylinder, and a laminated filter core is arranged in the second water filtration chamber; a water inlet pipe and a first sewage pipe; a second sewage pipe; a drainage pipe; compared with the existing technology, the present invention simplifies the system structure, improves the filtered water quality, backwashing effect and efficiency, system life and irrigation efficiency, reduces the occupation area, and reduces the construction cost.
Description
Technical Field
The invention belongs to the technical field of agricultural irrigation equipment, and particularly relates to a double-cavity three-stage filtering system.
Background
Agricultural irrigation system filters have been the heart of agricultural irrigation systems. At present, in a filtering system for agricultural irrigation, particularly in an automatic back flushing system, in order to achieve filtering precision and back flushing, a sand filter monomer and a lamination filter monomer are generally connected in series through a pipeline, after a filter is blocked for a period of time, the filter is cleaned in a back flushing mode, and filtered water of one filter needs to be back flushed to the other filter. The problems are that firstly, because the sand filter and the laminated filter are all single bodies, in order to realize back flushing, each filter is required to be independently provided with a set of back flushing valve and a back flushing controller, the occupied area is large, the integration is poor, secondly, because the laminated filter bears all high-precision filtering tasks, the blocking is easy to occur when thick liquid is filtered, meanwhile, when back flushing, impurities hung on the laminated space of the laminated filter are not easy to be flushed out due to the influence of mucus, the back flushing cannot be thoroughly carried out, on one hand, the water quality after filtering is poor, the service lives of the laminated filter and a filtering system are influenced, and on the other hand, only one filter can be cleaned at a time, the back flushing cannot be realized on two filters at the same time, the back flushing efficiency is low, and the irrigation efficiency is low.
Disclosure of Invention
The invention provides a double-cavity three-stage filtering system, which aims to solve the technical problems that an agricultural irrigation filtering system in the prior art is large in occupied area, low in backwashing efficiency and easy to be blocked by viscous liquid.
The invention provides a double-cavity three-stage filtering system which comprises a first filtering device and a second filtering device, wherein the first filtering device and the second filtering device are identical in structure and symmetrically arranged, the double-cavity three-stage filtering system comprises a tank body, the tank body is cylindrical, a first sand filtering cavity and a second sand filtering cavity are symmetrically arranged at the left and right sides of the upper part of the tank body, a first-stage filtering cavity is arranged at the middle part of the tank body, a third-stage filtering cavity is longitudinally arranged at the lower part of the tank body along a central shaft, a net-type filtering cavity is formed between the side wall of the third-stage filtering cavity and the side wall of the lower part of the tank body, a plurality of net-type filter cylinders are uniformly arranged in the net-type filtering cavities along the circumference of the same horizontal plane, a second-stage filtering cavity is formed in the net-type filter cylinders, and laminated filter cores are arranged in the second-stage filtering cavities; the top of the first-stage filter cavity is communicated with the bottom of the first sand filter cavity and the bottom of the second sand filter cavity, the side surface of the first-stage filter cavity is communicated with the side surface of the net-type filter cavity through the first filter pipe and the second filter pipe, the second-stage filter cavity is communicated with the net-type filter cavity through the side surface of the net-type filter cylinder, the lamination filter core is close to the inner end of the third-stage filter cavity and is provided with a water outlet and is communicated with the third-stage filter cavity through a pipeline, the bottom of the third-stage filter cavity is provided with a water outlet, one end of the first filter pipe is communicated with the side surface of the first-stage filter cavity, the other end of the first filter pipe is communicated with one end of the second filter pipe, and the other end of the second filter pipe is communicated with the side surface of the net-type filter cavity;
the side surface of one end of the water inlet pipeline is respectively communicated with two water inlets of the first filtering device through a first back flushing control valve and a second back flushing control valve, and the side surface of the other end of the water inlet pipeline is respectively communicated with two water inlets of the second filtering device through a third back flushing control valve and a fourth back flushing control valve;
one end of the middle sewage drain pipe is communicated with the side surfaces of the first filter pipe and the second filter pipe of the first filter device through a fifth back flush control valve, and the other end of the middle sewage drain pipe is communicated with the side surfaces of the first filter pipe and the second filter pipe of the second filter device through a sixth back flush control valve;
one end of the second sewage drain pipe is communicated with the side surface of the middle sewage drain pipe;
One end of the drainage pipeline is sealed, the drainage pipeline is arranged below the first filtering device and the second filtering device, and the side surface of the drainage pipeline is communicated with the water outlet of the first filtering device and the water outlet of the second filtering device through pipelines respectively;
The first back flush control valve, the second back flush control valve, the third back flush control valve, the fourth back flush control valve, the fifth back flush control valve and the sixth back flush control valve are all three-way electromagnetic valves.
Compared with the arrangement that one sand filter monomer and one lamination filter monomer are connected in series in the prior art, the sand filter is realized by arranging two sand filter cavities at the upper part of the tank body and arranging the net type filter cylinder and the lamination filter core at the lower part of the tank body, and the sand filter, the net type filter cylinder and the lamination filter core are arranged in the same tank body of the filter device.
Thus, firstly, the problem that the occupied area of the original sand filter monomer and the original lamination filter monomer is large is solved, the occupied area is reduced, and the construction cost is reduced;
Secondly, compared with the prior art that only one sand filtering monomer or one lamination filtering monomer can be backwashed at a time, the invention can simultaneously wash the sand filter, the net type filtering cylinder and the lamination filtering core, thereby improving the backwashing efficiency and the irrigation efficiency;
Thirdly, because the water firstly passes through the mesh type filter cartridge and then enters the laminated filter core for filtering, the mesh type filter cartridge firstly intercepts viscous impurities and larger particle impurities on the surface of the laminated filter cartridge, the viscous impurities cannot enter the laminated filter core, on one hand, the laminated filter core is not easy to block, the filtering precision of the laminated filter core is improved, and the quality of filtered water is further improved;
Fourth, in the prior art, each sand filtering monomer and each lamination filtering monomer are required to be provided with a set of back flushing valves, and the invention integrates the sand filtering monomers and the lamination filtering monomers, so that the number of the back flushing valves is saved, and the structure of a back flushing system is simplified;
Fifth, compare with prior art, through with grit filter, net formula cartridge filter and lamination filter core integration in a jar internal, improved the excessive flow on the unit area, improved irrigation efficiency.
Preferably, the first filtering device and the second filtering device further comprise a first sand filter and a second sand filter which are respectively arranged in the first sand filtering cavity and the second sand filtering cavity.
Preferably, the first sand filter and the second sand filter comprise a water separator arranged at a water inlet at the top, a sand bed arranged in the middle, a filter cap frame arranged at the bottom, and a filter cap arranged on the filter cap frame.
Preferably, the three-stage water filtering cavity is cylindrical, and the top of the three-stage water filtering cavity is tightly abutted against the bottom surface of the first-stage water filtering cavity and sealed.
The side surface of the inner end is fixedly connected with the inner side surface of the net-type filter cylinder through a fixing ring, and a water outlet is arranged at the end head of the inner end.
Preferably, the filtering precision of the net type filter cartridge is 50 meshes.
Preferably, the number of the mesh filter cartridges is set according to the flow rate.
Preferably, the first filtering device and the second filtering device further comprise supporting legs which are fixedly arranged at the bottom of the tank body.
The beneficial effects of the invention include:
compared with the prior art, the invention integrates the sand filter, the net type filter cylinder and the lamination filter core into one tank body, saves the number of back flushing valves, simplifies the system structure, improves the filtering water quality, improves the back flushing effect and efficiency, prolongs the service life of the system and the irrigation efficiency, reduces the occupied area and reduces the construction cost.
Drawings
In the drawings:
FIG. 1 is a schematic diagram of the main structure of the present invention;
FIG. 2 is a cross-sectional view of A-A of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
fig. 4 is a detailed schematic of a mesh filter cartridge and a laminated filter cartridge.
The reference numerals show that the filter device comprises a first filter device, a second filter device, a tank body 10, a first sand filter cavity 110, a second sand filter cavity 111, a water distributor 112, a sand bed 113, a filter cap frame 114, a filter cap 115, a water inlet 116, a first-stage filter cavity 12, a second-stage filter cavity 13, a third-stage filter cavity 14, a water outlet 140, a net-type filter cavity 150, a net-type filter cylinder 151, a flange 152, a 16-layer filter core 160, a water outlet 161, a fixed ring 17, a first water filter pipe 18, a second water filter pipe 19, a water inlet pipe 3, a first sewage drain pipe 4, a middle sewage drain pipe 5, a second sewage drain pipe 6, a water drain pipe 7, a first back flushing control valve 80, a second back flushing control valve 81, a third back flushing control valve 82, a fourth back flushing control valve 83, a fifth back flushing control valve 84, and a sixth back flushing control valve 85.
Detailed Description
The invention will now be described in detail with reference to the accompanying drawings, in which specific embodiments thereof are shown.
The two-cavity three-stage filtering system provided by the embodiment of the invention comprises a first filtering device 1 and a second filtering device 2 which are identical in structure and symmetrically arranged, wherein the two-cavity three-stage filtering system comprises a tank body 10, a cylindrical tank body, a first sand filtering cavity 110 and a second sand filtering cavity 111 which are symmetrically arranged at the left and right sides of the upper part of the tank body, a first-stage filtering cavity 12 which is arranged at the middle part of the tank body, a third-stage filtering cavity 14 which is longitudinally arranged at the lower part of the tank body along a central axis, a net-type filtering cavity 150 which is formed between the side wall of the third-stage filtering cavity 14 and the side wall of the lower part of the tank body 10, 5 net-type filtering cylinders 151 which are uniformly arranged in the net-type filtering cavity 150 along the same horizontal plane circumference, a second-stage filtering cavity 13 which is formed in the net-type filtering cavity 151, and a laminated filter core 16 which is arranged in the second-stage filtering cavity 13;
The water inlet pipeline 3 and the first sewage drain pipeline 4 are arranged in parallel, one end side surface is respectively communicated with two water inlets 116 of the first filtering device 1 through a first back flushing control valve 80 and a second back flushing control valve 81, and the other end side surface is respectively communicated with two water inlets 116 of the second filtering device 2 through a third back flushing control valve 82 and a fourth back flushing control valve 83;
The middle sewage drain pipe 5, one end of which is communicated with the side surfaces of the first filter pipe 17 and the second filter pipe 18 of the first filter device 1 through a fifth back flush control valve 84, and the other end of which is communicated with the side surfaces of the first filter pipe 17 and the second filter pipe 18 of the second filter device 2 through a sixth back flush control valve 85;
A second sewage drain pipe 6, one end of which is communicated with the side surface of the middle sewage drain pipe 5;
A drain pipe 7 having one end sealed and disposed below the first filter 1 and the second filter 2, and a side surface connected to the drain port 140 of the first filter 1 and the drain port 140 of the second filter 2 through pipes, respectively;
The first back flush control valve 80, the second back flush control valve 81, the third back flush control valve 82, the third back flush control valve 83, the fourth back flush control valve 84, the fifth back flush control valve 85 and the sixth back flush control valve 86 are all three-way solenoid valves.
Preferably, the first filtering device 1 and the second filtering device 2 further comprise a first sand filter and a second sand filter respectively arranged in the first sand filter cavity 110 and the second sand filter cavity 111.
Preferably, the first sand filter and the second sand filter each comprise a water separator 112 arranged at a top water inlet 116, a sand bed 113 arranged in the middle, a filter cap frame 114 arranged at the bottom, and a filter cap 115 arranged on the filter cap frame.
Preferably, the three-stage water filtering cavity 14 is cylindrical, and the top of the three-stage water filtering cavity is abutted against the bottom surface of the first-stage water filtering cavity 12 and sealed.
Preferably, the side surface of the net-type filter cartridge 151 is net-shaped, the outer end of the net-type filter cartridge 151 is sealed by a flange 152 and extends out of the side wall of the tank body 10, the laminated filter cartridge 16 is suspended at the outer end, the side surface of the inner end is fixedly connected with the inner side surface of the net-type filter cartridge 151 by a fixing ring 161, and a water outlet 160 is arranged at the end of the inner end.
Preferably, the mesh filter cartridge 151 has a filtering accuracy of 50 mesh.
Preferably, the first filtering device 1 and the second filtering device 2 further comprise supporting legs 19 fixedly arranged at the bottom of the tank body 10.
The working process and principle of the invention are as follows:
When the filter is normally used, the first back flush control valve and the second back flush control valve are arranged so that two water inlets of the first filter device are communicated with the water inlet pipeline, the third back flush control valve and the fourth back flush control valve are arranged so that two water inlets of the second filter device are communicated with the water inlet pipeline, the fifth back flush control valve and the sixth back flush control valve are arranged so that the first filter device and the first filter pipe and the second filter pipe of the second filter device are communicated, and the middle sewage discharge pipeline is disconnected with the first filter pipe and the second filter pipe of the first filter device and the second filter device;
Secondly, under the effect of pressure, the water to be filtered enters a first sand filter cavity and a second sand filter cavity of a first filter device (the process of a second filter device is the same and omitted) from a water inlet pipeline, is filtered by the first sand filter and the second sand filter, enters a first-stage filter cavity, then enters a net-type filter cavity through the first filter pipe and the second filter pipe, enters a second-stage filter cavity after being filtered through the side surface of the net-type filter cylinder, then enters a laminated filter element and enters a three-stage filter cavity through a pipeline after being filtered, and finally enters a drainage pipeline through a drainage port.
In the back flushing state, the first filter device is back flushed, the second filter device operates normally (or the states of the first filter device and the second filter device are reversed), and the back flushing of the first filter device will be described below as an example:
When the first filtering device is backwashed, the first sand filter and the second sand filter of the first filtering device alternately perform backwashed, and simultaneously, the net type filtering cylinder and the lamination filtering core perform backwashed simultaneously with the first sand filter or the second sand filter:
The first back flushing control valve and the fourth back flushing control valve are arranged so that two water inlets of the second filter device are communicated with the water inlet pipe, the fifth back flushing control valve is arranged so that the first filter pipe and the second filter pipe of the first filter device are disconnected, and the first filter pipe and the second filter pipe are communicated with the middle sewage pipeline, namely the first filter pipe and the second filter pipe of the second filter device are communicated, and the sixth back flushing control valve is arranged so that the first filter pipe and the second filter pipe of the second filter device are communicated, and the middle sewage pipe is disconnected from the first filter pipe and the second filter pipe of the second filter device;
secondly, on one hand, the second sand filter of the first filtering device works normally, water to be filtered enters the second sand filter from the water inlet pipe through the second back flush control valve, enters the first-stage water filtering cavity after filtering, enters the first sand filter from the bottom of the first sand filter under the action of pressure, reversely passes through the filtering cap, sand in the sand bed is driven to generate a shaking back flush effect, and sewage after washing enters the first sewage drain pipeline through the first back flush control valve;
Meanwhile, on the other hand, the second filtering device in a normal working state is characterized in that final filtered water enters a three-stage filtering water cavity of the first filtering device through a water drain pipe under the action of pressure and a water outlet of the first filtering device, then enters a laminated filter core through a water outlet, back-washes the laminated filter core, enters a net-type filtering cavity after back-washing the side surface of the net-type filtering cylinder, and finally enters a second sewage pipeline through the second filtering pipe and a middle sewage pipeline to be discharged.
In summary, compared with the prior art, the invention integrates the sand filter, the net type filter cartridge and the lamination filter cartridge into one tank body, thereby saving the number of back flushing valves, simplifying the system structure, improving the filtering water quality, improving the back flushing effect and efficiency, prolonging the service life of the system and the irrigation efficiency, reducing the occupied area and reducing the construction cost.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. A dual-chamber three-stage filtration system, comprising:
The first filtering device and the second filtering device are identical in structure and symmetrically arranged, and each filtering device comprises a tank body, wherein the tank body is cylindrical, the upper part of the tank body is symmetrically provided with a first sand filtering cavity and a second sand filtering cavity left and right, the middle part of the tank body is provided with a first-stage filtering cavity, the lower part of the tank body is longitudinally provided with a third-stage filtering cavity along a central shaft, a net-type filtering cavity is formed between the side wall of the third-stage filtering cavity and the side wall of the lower part of the tank body, a plurality of net-type filtering cylinders are uniformly arranged in the net-type filtering cavity along the circumference of the same horizontal plane, a second-stage filtering cavity is formed in the net-type filtering cylinder, a laminated filter core is arranged in the second-stage filtering cavity, the top of the first-stage filtering cavity is communicated with the bottom of the first sand filtering cavity and the bottom of the second sand filtering cavity, the side surface of the first filtering pipe and the second filtering cavity are communicated with the side surface of the net-type filtering cavity, the side surface of the second filtering cavity is communicated with the net-type filtering cavity through a water outlet is formed near the inner end of the third-stage filtering cavity through a pipeline, and the bottom of the third-stage filtering cavity is communicated with the water outlet;
The water inlet pipeline and the first sewage draining pipeline are arranged in parallel, one end side surface is respectively communicated with two water inlets of the first filtering device through the first back flushing control valve and the second back flushing control valve, and the other end side surface is respectively communicated with two water inlets of the second filtering device through the third back flushing control valve and the fourth back flushing control valve;
one end of the middle sewage drain pipe is communicated with the side surfaces of the first filter pipe and the second filter pipe of the first filter device through a fifth back flush control valve, and the other end of the middle sewage drain pipe is communicated with the side surfaces of the first filter pipe and the second filter pipe of the second filter device through a sixth back flush control valve;
one end of the second sewage drain pipe is communicated with the side surface of the middle sewage drain pipe;
One end of the drainage pipeline is sealed, the drainage pipeline is arranged below the first filtering device and the second filtering device, and the side surface of the drainage pipeline is communicated with the water outlet of the first filtering device and the water outlet of the second filtering device through pipelines respectively;
The first back flush control valve, the second back flush control valve, the third back flush control valve, the fourth back flush control valve, the fifth back flush control valve and the sixth back flush control valve are all three-way electromagnetic valves.
2. The dual chamber three stage filtration system of claim 1, wherein the first filter means and the second filter means further comprise a first sand filter and a second sand filter disposed within the first sand filter chamber and the second sand filter chamber, respectively.
3. The dual chamber three stage filtration system of claim 2, wherein the first sand filter and the second sand filter each comprise a water separator disposed at the top water inlet, a sand bed disposed in the middle, a filter cap holder disposed at the bottom, and a filter cap disposed on the filter cap holder.
4. A dual chamber three stage filtration system according to claim 1 wherein the three stage filtration chamber is cylindrical with the top abutting the bottom surface of the first stage filtration chamber and sealed.
5. The dual-chamber three-stage filtration system of claim 1, wherein the mesh-type filter cartridge has a mesh-shaped side surface, an outer end is sealed by a flange and extends out of the side wall of the tank body, the laminated filter cartridge has an outer end suspended, the side surface of an inner end is fixedly connected with the inner side surface of the mesh-type filter cartridge by a fixing ring, and a water outlet is arranged at the end of the inner end.
6. The dual chamber tertiary filter system of claim 1 wherein the mesh filter cartridge has a filtration accuracy of 50 mesh.
7. The dual chamber tertiary filter system of claim 1 wherein the number of mesh filter cartridges is set based on flow.
8. The dual chamber tertiary filter system of claim 1 wherein the first filter means and the second filter means further include legs fixedly disposed at the bottom of the tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010664940.6A CN111643962B (en) | 2020-07-10 | 2020-07-10 | A double-chamber three-stage filtration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010664940.6A CN111643962B (en) | 2020-07-10 | 2020-07-10 | A double-chamber three-stage filtration system |
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| Publication Number | Publication Date |
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| CN111643962A CN111643962A (en) | 2020-09-11 |
| CN111643962B true CN111643962B (en) | 2025-02-07 |
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| CN117548421B (en) * | 2023-10-19 | 2025-07-15 | 龙游塔恩纸业有限公司 | A cleaning device and a cleaning method for a rubber roller used in a tipping paper transfer device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212369734U (en) * | 2020-07-10 | 2021-01-19 | 四川菲特能特智慧农业科技股份有限公司 | A dual-chamber three-stage filtration system |
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| CN103785209B (en) * | 2013-11-22 | 2015-08-05 | 江苏大学 | A kind of reverse flushing filter screen filter |
| CN203990085U (en) * | 2014-07-18 | 2014-12-10 | 北京东方润泽生态科技股份有限公司 | A kind of composite type filter |
| KR20160074290A (en) * | 2014-12-18 | 2016-06-28 | 주식회사 에스엔에스에너지 | Reverse cleansing filter system |
| CN204411880U (en) * | 2015-01-27 | 2015-06-24 | 刘新杰 | A kind of filter for agricultural irrigation systems |
| CN105879484B (en) * | 2016-06-16 | 2019-02-05 | 北京通捷智慧水务股份有限公司 | The vertical automatic integrated filter of sandstone net-type |
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| CN212369734U (en) * | 2020-07-10 | 2021-01-19 | 四川菲特能特智慧农业科技股份有限公司 | A dual-chamber three-stage filtration system |
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