CN211216122U - Be applied to desulfurization system's carborundum agitator - Google Patents
Be applied to desulfurization system's carborundum agitator Download PDFInfo
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- CN211216122U CN211216122U CN201922063835.2U CN201922063835U CN211216122U CN 211216122 U CN211216122 U CN 211216122U CN 201922063835 U CN201922063835 U CN 201922063835U CN 211216122 U CN211216122 U CN 211216122U
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Abstract
The utility model provides a be applied to carborundum agitator of desulfurization system, solves the unable impeller of avoiding that prior art exists and under the service environment of corruption, erosion and strike combined action, damages the inefficacy phenomenon extremely fast, the short problem of agitator life. Including the upside be provided with the agitator tank body of feed inlet, its characterized in that: a discharge hole is formed in the lower side of the stirring tank body, a stirring impeller is arranged on a stirring shaft in a mixing and stirring cavity of the stirring tank body, and a plurality of groups of bending blades are uniformly distributed on an impeller hub of the stirring impeller; a first bending section, a second bending section, a third bending section and a fourth bending section are arranged on the blade body of the bending blade; one end of the stirring shaft extending out of the outer side of the end part of the stirring tank body is connected with a stirring driving motor through a speed reducer. The stirring impeller has the advantages of reasonable design, compact structure, high stirring efficiency, low energy consumption, reliable corrosion resistance and erosion resistance, and can effectively prolong the service life of the stirring impeller in a severe medium environment and facilitate maintenance.
Description
Technical Field
The utility model belongs to the technical field of flue gas desulfurization equipment, concretely relates to stirring is efficient, and the energy consumption is low, and corrosion resisting property and erosion resisting property are reliable, can effectively promote the life of impeller in adverse media environment, the carborundum agitator of being applied to desulfurization system of being convenient for maintain.
Background
With the increasingly severe environment-friendly situation, the country advocates strongly that "both the silver mountain of the Jinshan mountain and the Qingshan mountain of the Green Water" are required, and the national department of highest functioning also requires and strictly supervises: all thermal power generating units must be subjected to flue gas desulfurization. In the process of flue gas desulfurization, limestone slurry is required to be conveyed to a desulfurization tower for neutralizing sulfate radicals in flue gas, so that the discharged flue gas reaches the environmental protection standard. In the desulfurization mixing process of conveying and stirring limestone slurry, complex media of acid and alkali salts can be generated, the media have corrosivity and washability, and the media can generate stronger knocking force in the moving process. When the mixed agitator of desulfurization of current structure and this type of medium direct contact use, the short inherent problem of ubiquitous life, even adopt magnetic induction, novel technique such as contactless sealing to and adopt the super austenitic stainless steel material of high cost, still can't avoid the impeller of agitator to corrode, erode and strike under combined action's service environment, damage the phenomenon of inefficacy extremely soon. Therefore, there is a need for an improved mixing and stirring device for desulfurization in desulfurization systems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses just to above-mentioned problem, provide a stirring efficiency height, the energy consumption is low, and corrosion resisting property and erosion resisting property are reliable, can effectively promote the life of impeller in adverse media environment, the carborundum agitator of being applied to desulfurization system of being convenient for maintain.
The utility model adopts the technical proposal that: this be applied to carborundum agitator of desulfurization system includes the agitator tank body, its characterized in that: the stirring device is characterized in that a feeding hole is formed in the upper side of the stirring tank body, a discharging hole is formed in the lower side of the stirring tank body, a side-in type horizontally-arranged stirring shaft is arranged in a mixing and stirring cavity of the stirring tank body, a stirring impeller is arranged on the stirring shaft and consists of an impeller hub, a plurality of groups of bent blades are uniformly distributed on the impeller hub, the impeller hub is sleeved on the stirring shaft through an impeller mounting hole, and the impeller hub is fixedly connected with the stirring shaft through a connecting key arranged in a connecting key groove; the bending blade comprises a blade body, one end of the blade body is provided with a blade connecting part, a first bending section, a second bending section, a third bending section and a fourth bending section are sequentially arranged on the blade body along the contact sequence of the rotating blade body and materials, and the bending blade is detachably connected with the end side of the impeller hub through the blade connecting part; the stirring shaft stretches out the one end in the agitator tank tip outside, links to each other through reduction gear and stirring driving motor's output shaft to, be provided with the bearing box between the outside end of stirring shaft and the reduction gear output, still be provided with seal assembly between the stirring shaft and the agitator tank body distolateral.
The outer part of the blade body of the bent blade is coated with a silicon carbide layer. The stirring efficiency is improved, the energy consumption is reduced, the wear resistance of the blades is improved, the service life of the product is prolonged, and the maintenance is convenient.
And a carbon fiber layer is arranged between the silicon carbide layer and the surface of the blade body of the bent blade. In order to ensure the inseparable degree of carborundum layer and blade lamellar body surface laminating, and then avoid interlaminar structure to appear inside space for the blade surface is difficult damaged when receiving the continuous striking of granule in the medium, effectively protects the inner structure of the blade of bending.
The included angle alpha between the first bending section of the bending blade and the vertical surface perpendicular to the axis of the stirring shaft is 10-20 degrees, the included angle beta between the second bending section of the bending blade and the vertical surface is 20-30 degrees, the included angle gamma between the third bending section of the bending blade and the vertical surface is 40-50 degrees, and the included angle theta between the fourth bending section of the bending blade and the vertical surface is 50-70 degrees. In order to effectively promote impeller's stirring efficiency when guaranteeing bending blade intensity.
The stirring shaft is positioned at one end of the inner side of the stirring tank body and is provided with an extension connecting shaft, the end part of the extension connecting shaft is connected with the end part of the stirring shaft through a coupler, and a stirring impeller is also arranged on the extension connecting shaft. So that the internal each position thick liquid of desulfurizing tower agitator tank all obtains evenly stirring, simultaneously, this kind of structure also is convenient for deposit according to the stirring medium, the difference of reinforced level, adds in a flexible way and changes the impeller of corresponding size, different angle of inflection, and then satisfies the stirring requirement of each stratum medium, prevents deposit, promotes stirring effect.
The utility model has the advantages that: because the utility model adopts the stirring tank body with the feeding port arranged on the upper side, the discharge port is arranged on the lower side of the stirring tank body, the side-in type horizontally-arranged stirring shaft is arranged in the mixing and stirring cavity of the stirring tank body, the stirring shaft is provided with the stirring impeller, and a plurality of groups of bending blades are uniformly distributed on the impeller hub of the stirring impeller; one end of a blade body of the bending blade is provided with a blade connecting part, a first bending section, a second bending section, a third bending section and a fourth bending section are sequentially arranged on the blade body along the contact sequence of the rotating blade body and the material, and the bending blade is detachably connected with the end side of the impeller hub through the blade connecting part; the one end that the (mixing) shaft stretches out the agitator tank tip outside links to each other with stirring driving motor through the reduction gear, and is provided with the bearing box between the outside end of (mixing) shaft and the reduction gear output, sets up seal assembly's structural style between the (mixing) shaft and the agitator tank body distolateral, so its reasonable in design, compact structure, stirring is efficient, the energy consumption is low, corrosion resisting property and erosion resistance can be reliable, can effectively promote the life of impeller in abominable medium environment, the maintenance of being convenient for. The side-in type stirrer is suitable for the arrangement form of the side-in type stirrer, and is also suitable for other top and bottom stirring arrangement forms; the method can also be popularized in pipeline systems of equipment for conveying and stirring corrosive, erosive and granular severe media for papermaking, dephosphorization, environmental protection and the like.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial sectional view of the structure of fig. 1 taken along line a-a.
Fig. 3 is a schematic view of a structure of the bent blade of fig. 2.
Fig. 4 is a sectional view taken along line B-B of fig. 3.
Fig. 5 is a cross-sectional view taken along line C-C of fig. 3.
The sequence numbers in the figures illustrate: 1 stirring tank body, 2 mixing and stirring chambers, 3 stirring driving motors, 4 speed reducers, 5 bearing boxes, 6 sealing assemblies, 7 stirring shafts, 8 stirring impellers, 9 couplings, 10 extension connecting shafts, 11 feeding ports, 12 discharging ports, 13 automatic exhaust valves, 14 impeller hubs, 15 impeller mounting holes, 16 connecting key slots, 17 bending blades, 18 blade bodies, 19 first bending sections, 20 second bending sections, 21 third bending sections, 22 fourth bending sections, 23 blade connecting parts and 24 vertical surfaces.
Detailed Description
The specific structure of the present invention is described in detail with reference to fig. 1 to 5. This be applied to silicon carbide agitator of desulfurization system includes the desulfurizing tower agitator tank body 1, and the upside of the desulfurizing tower agitator tank body 1 is provided with feed inlet 11, and the downside of the desulfurizing tower agitator tank body 1 is provided with discharge gate 12, and the upside of the desulfurizing tower agitator tank body 1 still is provided with air relief valve 13. A mixing and stirring cavity 2 of the stirring tank body 1 of the desulfurizing tower is internally provided with a stirring shaft 7 which is horizontally arranged in a transverse direction, and the stirring shaft 7 is provided with a stirring impeller 8; the stirring impeller 8 is composed of an impeller hub 14, and a plurality of groups of bent blades 17 are uniformly distributed on the impeller hub 14. The impeller hub 14 is sleeved on the stirring shaft 7 through the impeller mounting hole 15, and is fixedly connected with the stirring shaft 7 by using a connecting key arranged in the connecting key slot 16. The stirring shaft 7 extends out of one end of the outer side of the end part of the stirring tank body 1 of the desulfurizing tower and is connected with an output shaft of the stirring driving motor 3 through a speed reducer 4; and a bearing box 5 is arranged between the outer end of the stirring shaft 7 and the output end of the speed reducer 4, and a sealing assembly 6 is also arranged between the stirring shaft 7 and the end side of the stirring tank body 1 of the desulfurizing tower.
The bending blade 17 on the stirring impeller 8 comprises a blade body 18, and the outside of the blade body 18 is coated with a silicon carbide layer, namely: the silicon carbide material is melted by using related processes, coated on the surface of the blade body 18 (pure metal or carbon fiber) by a special process under the condition of 50-80 ℃, tightly coated on the surface of the blade by high pressure for fixed molding, and then enters heat treatment equipment for solid molding under the condition of high temperature and high pressure. In order to ensure the tightness degree of the surface attachment of the silicon carbide layer and the blade body 18, a carbon fiber layer is arranged between the silicon carbide layer and the surface of the blade body 18 of the bending blade 17, so that an internal gap is prevented from occurring in an interlayer structure, the surface of the blade is not easy to damage when being continuously impacted by hard particles in a medium, and the internal structure of the bending blade 17 is effectively protected. The silicon carbide layer on the bending blade 17 forms a smooth surface with ceramic property, so that the stirring efficiency can be ensured to the maximum extent, and the effects of improving the efficiency of the whole machine and reducing the energy consumption are further achieved; the wear-resisting degree of the blade is improved by three times compared with that of a common blade, the service life of a product is obviously prolonged, and the problems of frequent replacement of spare parts, complex routine maintenance and high cost are thoroughly solved.
One end of the blade body 18 of the bending blade 17 is provided with a blade connecting part 23, and a first bending section 19, a second bending section 20, a third bending section 21 and a fourth bending section 22 are sequentially arranged on the blade body 18 along the contact sequence of the rotating blade body and the material. The included angle alpha between the first bending section 19 of the bending blade 17 and the vertical surface 24 vertical to the axial line of the stirring shaft 7 can be between 10 and 20 degrees; the included angle beta between the second bending section 20 of the bending blade 17 and the vertical surface 24 can be 20-30 degrees; the included angle gamma between the third bending section 21 of the bending blade 17 and the vertical surface 24 can be 40-50 degrees; the included angle theta between the fourth bending section 22 of the bending blade 17 and the vertical surface 24 can be between 50 and 70 degrees; so as to effectively improve the stirring efficiency of the stirring impeller 8 while ensuring the strength of the bending blade 17. Each bent blade 17 is detachably connected to the end side of the impeller hub 14 via a blade connection portion 23.
The stirring shaft 7 is positioned at one end of the inner side of the stirring tank body 1 of the desulfurizing tower, an extension connecting shaft 10 can be arranged according to the size requirement of the stirring tank body of the desulfurizing tower, and the end part of the extension connecting shaft 10 is connected with the end part of the stirring shaft 7 through a coupler 9; in addition, in order to ensure good stirring effect, the middle part and the end part of the connecting shaft 10 are extended, and stirring impellers 8 with bent blades 17 are also respectively arranged; and then make all position thick liquids in the desulfurizing tower agitator tank body all obtain evenly stirring, be convenient for deposit according to the stirring medium, the difference of reinforced level, add in a flexible way and change the impeller of corresponding size, different angle of inflection to satisfy the stirring requirement of each level medium, prevent deposit, promote stirring effect.
When the silicon carbide stirrer applied to the desulfurization system is used, firstly, a stirring shaft 7 in a stirring tank body 1 of a desulfurization tower is driven to rotate by a stirring driving motor 3 connected with a driving part of a speed reducer 4; then, limestone slurry to be stirred enters the stirring tank body 1 of the desulfurization tower from the feeding hole 11, and the slurry in the stirring tank body 1 of the desulfurization tower is continuously stirred by the stirring impeller 8 rotating along with the stirring shaft 7 and is discharged through the discharging hole 12. In the stirring process, the bent blades 17 with ceramic smooth surfaces formed by the silicon carbide layers are arranged on the stirring impeller 8, so that the stirring efficiency of the stirring impeller 8 can be effectively improved, and the energy consumption can be reduced; moreover, the bending blade 17 can bear stronger knocking force generated by the medium in the moving process, has high wear resistance, reliable corrosion resistance and erosion resistance, can effectively prolong the service life of the stirring impeller 8 in a severe medium environment, is convenient to maintain and has strong practicability.
Claims (5)
1. The utility model provides a be applied to carborundum agitator of desulfurization system, includes agitator tank body (1), its characterized in that: a feeding hole (11) is formed in the upper side of the stirring tank body (1), a discharging hole (12) is formed in the lower side of the stirring tank body (1), a stirring shaft (7) which is horizontally arranged in a transverse direction is arranged in a mixing and stirring cavity (2) of the stirring tank body (1), a stirring impeller (8) is arranged on the stirring shaft (7), the stirring impeller (8) is composed of an impeller hub (14), a plurality of groups of bent blades (17) are uniformly distributed on the impeller hub (14), the impeller hub (14) is sleeved on the stirring shaft (7) through an impeller mounting hole (15), and the impeller hub is fixedly connected with the stirring shaft (7) through a connecting key arranged in a connecting key groove (16); the bending blade (17) comprises a blade body (18), one end of the blade body (18) is provided with a blade connecting part (23), a first bending section (19), a second bending section (20), a third bending section (21) and a fourth bending section (22) are sequentially arranged on the blade body (18) along the contact sequence of the rotating blade body and materials, and the bending blade (17) is detachably connected with the end side of the impeller hub (14) through the blade connecting part (23); the stirring shaft (7) stretches out to the one end in the agitator tank body (1) tip outside, links to each other through reduction gear (4) and the output shaft of stirring driving motor (3) to, be provided with bearing box (5) between the outside end of stirring shaft (7) and reduction gear (4) output, still be provided with seal assembly (6) between the stirring shaft (7) and agitator tank body (1) distolateral.
2. The silicon carbide stirrer applied to the desulfurization system according to claim 1, wherein: the blade body (18) of the bending blade (17) is coated with a silicon carbide layer.
3. The silicon carbide stirrer applied to the desulfurization system according to claim 2, wherein: and a carbon fiber layer is arranged between the silicon carbide layer and the surface of the blade body (18) of the bent blade (17).
4. The silicon carbide stirrer applied to the desulfurization system according to claim 1, wherein: the included angle alpha between the first bending section (19) of the bending blade (17) and the vertical surface (24) perpendicular to the axis of the stirring shaft (7) is 10-20 degrees, the included angle beta between the second bending section (20) of the bending blade (17) and the vertical surface (24) is 20-30 degrees, the included angle gamma between the third bending section (21) of the bending blade (17) and the vertical surface (24) is 40-50 degrees, and the included angle theta between the fourth bending section (22) of the bending blade (17) and the vertical surface (24) is 50-70 degrees.
5. The silicon carbide stirrer applied to the desulfurization system according to claim 1, wherein: the stirring shaft (7) is positioned at one end of the inner side of the stirring tank body (1) and is provided with an extension connecting shaft (10), the end part of the extension connecting shaft (10) is connected with the end part of the stirring shaft (7) through a shaft coupling (9), and a stirring impeller (8) is also arranged on the extension connecting shaft (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922063835.2U CN211216122U (en) | 2019-11-26 | 2019-11-26 | Be applied to desulfurization system's carborundum agitator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922063835.2U CN211216122U (en) | 2019-11-26 | 2019-11-26 | Be applied to desulfurization system's carborundum agitator |
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| CN211216122U true CN211216122U (en) | 2020-08-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112062267A (en) * | 2020-09-08 | 2020-12-11 | 北京清源汇环境技术有限公司 | Special stirrer and stirring method for MBBR moving bed biofilm filler carrier |
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2019
- 2019-11-26 CN CN201922063835.2U patent/CN211216122U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112062267A (en) * | 2020-09-08 | 2020-12-11 | 北京清源汇环境技术有限公司 | Special stirrer and stirring method for MBBR moving bed biofilm filler carrier |
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