CN201445856U - Filtering net for absorbing tower - Google Patents
Filtering net for absorbing tower Download PDFInfo
- Publication number
- CN201445856U CN201445856U CN2009200352236U CN200920035223U CN201445856U CN 201445856 U CN201445856 U CN 201445856U CN 2009200352236 U CN2009200352236 U CN 2009200352236U CN 200920035223 U CN200920035223 U CN 200920035223U CN 201445856 U CN201445856 U CN 201445856U
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- filtering
- filter screen
- steel rib
- clad
- materials
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Abstract
The utility model relates to a filtering net for a absorbing tower, the net body is made of PP materials, the inside of the net body is clad with a steel rib structure. The filtering net provided by the utility model adopts the scheme that the inside of the net body is clad with the steel rib structure and the outside of the steel rib is clad with PP materials, and combines the advantages of two kinds of materials, the strength of the filtering net can be strengthened by the steel rib structure, the steel rib structure is clad with the PP materials for preventing the electrochemical corrosion. The utility model has characteristics of corrosion resistance, high intensity, shock resistance, good insulation properties and high heat resistance, can be widely applied to the filtering of mixed liquid or solution containing multiple corrosion mediums such as acid, alkali, high concentration chloride ion and the like, applied to the filtering of an absorbing tower slurry pump inlet and a gypsum slurry discharge pump inlet during heat power plant desulfuration engineering, meanwhile applied to the filtering of solution having acid and alkali corrosive performances on industries such as electric power, chemical industry, metallurgy and the like.
Description
Technical field
The utility model relates to a kind of filter screen that is used for the absorption tower, specifically a kind of filter screen that is used for desulfurization project absorption tower, thermal power plant slush pump inlet and gypsum slurries excavationg pump inlet.
Background technology
In the gypsum method desulfurizing item of thermal power plant, absorption tower slush pump inlet and gypsum excavationg pump inlet all need filter screen, because coal, the sufficient combustion degree difference of power plant, cause the operating condition complexity, cause the various ion concentrations of absorption tower slurries that very big-difference is arranged, so the material to filter screen has higher requirement, as acidproof, alkaline-resisting, resisting high-concentration chloride ion corrosion, electrochemical corrosion resistant or the like, filter screen all adopted high nickelio alloy material, PP material or FRP (fiberglass) material to manufacture in the past.
The filter screen advantage that the high nickelio alloy material is made: intensity height, little, the acid-alkali-corrosive-resisting, high temperature resistant of resistance.Its shortcoming is the cost height, is about 9 times of PP material with the volume Unit Weight, is about 3 times of FRP material.Thereby, can cause whole damage the in the filter screen short time when serious if be easy to generate the local chlorine spot corrosion that electrochemical corrosion causes material to produce because of ionization when containing dissimilar metal in the slurries.
The filter screen advantage that the FRP material is made: the hardness high abrasion decreases, better (operating temperature meets the slurries operating condition), acid-alkali-corrosive-resisting, non-conductive resisting high-concentration chloride ion corrosion, cost are lower for temperature tolerance.Its shortcoming is that the plasticity difference is not shock-resistant, and is higher to transportation and installation requirement, in the engineering operation there is because of installing or transport the phenomenon that hard defects cause breakage the FRP filter screen.Need strengthen material thickness for improving bearing capacity, thereby cause the big plug-hole easily of resistance, the filter screen volume of same traffic is bigger.
The filter screen advantage that the PP material is made: the high tough of plasticity is good, acid-alkali-corrosive-resisting, non-conductive resisting high-concentration chloride ion corrosion, cost are low.Its shortcoming is a difference of hardness, easy softening transform during high temperature, and the PP filter screen has because of the too high generation plastic deformation of operating temperature and is inhaled flat phenomenon in the engineering operation.Also need to strengthen material thickness for improving bearing capacity, thereby cause the big plug-hole easily of resistance, the filter screen volume of same traffic is bigger.
Summary of the invention
The utility model is at the problems referred to above, provides that a kind of intensity height, cost are low, the filter screen that is used for the absorption tower of acid-alkali-corrosive-resisting.
According to the technical solution of the utility model: a kind of filter screen that is used for the absorption tower, dictyosome is made by the PP material, and the inside of described dictyosome is coated with the reinforcing bar structure.
Described dictyosome is the semicircular ring flute profile, and its side is provided with cover plate.Described dictyosome is a segmental structure.Per two segmentation junctions are provided with to be strengthened supporting, and described reinforcement is supported by bolt and connected, and the outside of bolt coats the PP material.Described reinforcement is supported and is made up of square steel and PP plate.Each segmentation of described dictyosome is provided with semicircle ring type reinforcement.
Technique effect of the present utility model is: the utility model filter screen has adopted the inner reinforcing bar structure that is, the outside coats the scheme of PP material, in conjunction with the advantage of two kinds of materials,, the reinforcing bar structure is not etched electrochemically with the coating of PP material with the intensity of reinforcing bar structure reinforcement filter screen.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the longitudinal section of Fig. 1, and its cover plate is an open mode.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described.
As Fig. 1～shown in Figure 4, the utility model is a kind of filter screen that is used for the absorption tower, and dictyosome 3 is made by the PP material, and the inside of dictyosome 3 is coated with the reinforcing bar structure.This structure adopts the quality carbon steel section bar to do skeleton, has solved the strength problem of filter screen carrying, the plasticity, moulding of utilizing the PP material easily, easily welding, characteristics such as corrosion-resistant, the reinforcing bar structure is coated entirely, the reinforcing bar structure is not etched electrochemically.Because the reinforcing bar structure has solved strength problem, on PP material thickness type selecting, can carry out corresponding attenuate simultaneously, solve corresponding blockage problem to reduce the filter screen resistance.The production cost of PP material is lower in addition, makes equipment overall cost cost descend 2/3rds, has solved the high problem of high nickelio alloy material price.
Dictyosome 3 is the semicircular ring flute profile, and its side is provided with cover plate 1.Cover plate 1 can be free movable by bolting, and pressure discharges when being convenient to shut down maintenance.
Dictyosome 3 is a segmental structure, both has been convenient to convenient transportation and also has been convenient to on-the-spot installation.Per two segmentation junctions are provided with to be strengthened supporting 2, plays increase equipment intensity.Strengthen supporting 2 is made up of square steel and PP plate.Strengthen to support 2 and connected by bolt 4, the outside of bolt 4 coats the PP material, when being convenient to install and remove, and the more effective antiseptic effect that played.
Each segmentation of dictyosome 3 is provided with semicircle ring type reinforcement 6.By optimizing reinforcement thickness and the ratio of width and the pitch arrangement of reinforcement, make this structure filter screen reach best intensity.
The utlity model has corrosion-resistant, intensity is high, shock-resistant, good insulation preformance, heatproof be than high, can be widely used in the various filtrations that acid, alkali, high-concentration chlorine ion etc. contain multiple corrosive medium mixing material or solution that have. Be applicable to the filtration of absorption tower slush pump entrance and gypsum slurries excavationg pump entrance in the desulfurization project of thermal power plant, be applicable to that also the industries such as electric power, chemical industry, metallurgy have the filtration of acid and alkali corrosion solution simultaneously.
Claims (6)
1. filter screen that is used for the absorption tower, dictyosome (3) is made by the PP material, and it is characterized in that: the inside of described dictyosome (3) is coated with the reinforcing bar structure.
2. according to the described filter screen that is used for the absorption tower of claim 1, it is characterized in that: described dictyosome (3) is the semicircular ring flute profile, and its side is provided with cover plate (1).
3. according to the described filter screen that is used for the absorption tower of claim 1, it is characterized in that: described dictyosome (3) is a segmental structure.
4. according to the described filter screen that is used for the absorption tower of claim 3, it is characterized in that: per two segmentation junctions are provided with strengthens supporting (2), and described reinforcement is supported (2) and connected by bolt (4), and the outside of bolt (4) coats the PP material.
5. according to the described filter screen that is used for the absorption tower of claim 4, it is characterized in that: described reinforcement is supported (2) and is made up of square steel and PP plate.
6. according to the described filter screen that is used for the absorption tower of claim 3, it is characterized in that: each segmentation of described dictyosome (3) is provided with semicircle ring type reinforcement (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200352236U CN201445856U (en) | 2009-03-12 | 2009-03-12 | Filtering net for absorbing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200352236U CN201445856U (en) | 2009-03-12 | 2009-03-12 | Filtering net for absorbing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201445856U true CN201445856U (en) | 2010-05-05 |
Family
ID=42550563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200352236U Expired - Fee Related CN201445856U (en) | 2009-03-12 | 2009-03-12 | Filtering net for absorbing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201445856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394227A (en) * | 2013-08-05 | 2013-11-20 | 河南华润电力古城有限公司 | Filter device used at desulfurizing absorption tower slurry-circulating pump inlet and filter screen of filter device |
| CN108744721A (en) * | 2018-06-26 | 2018-11-06 | 江苏宏泰纤维科技有限公司 | A kind of terylene needled filtering felt |
-
2009
- 2009-03-12 CN CN2009200352236U patent/CN201445856U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394227A (en) * | 2013-08-05 | 2013-11-20 | 河南华润电力古城有限公司 | Filter device used at desulfurizing absorption tower slurry-circulating pump inlet and filter screen of filter device |
| CN108744721A (en) * | 2018-06-26 | 2018-11-06 | 江苏宏泰纤维科技有限公司 | A kind of terylene needled filtering felt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20120312 |