CN201908847U - Inner corner water injection and high concentration centrifuge pulp pump - Google Patents
Inner corner water injection and high concentration centrifuge pulp pump Download PDFInfo
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- CN201908847U CN201908847U CN2011200448467U CN201120044846U CN201908847U CN 201908847 U CN201908847 U CN 201908847U CN 2011200448467 U CN2011200448467 U CN 2011200448467U CN 201120044846 U CN201120044846 U CN 201120044846U CN 201908847 U CN201908847 U CN 201908847U
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Abstract
The utility model aims to provide an inner corner water injection and high concentration centrifuge pulp pump, when the working concentration is 12%, the lift can reaches 100m, and the maximum concentration can reach 20%. In order to realize the purposes, the inner corner water injection and high concentration centrifuge pulp pump comprises a main shaft 1, a mechanical seal 2, a pump rear cover 5, a pump head volute casing 9, an impeller 10, a turbulent generator 13, a high-pressure pump 15, a gas-water separator 18 and a vacuum pump 20; and a gas-water separation circulation system which pumps air in a vacuum way and sprays water at high pressure is formed. The system has the advantages that an annular high-pressure water nozzle is used for effectively solving the possibility that pulp fibers are accumulated and blocked on the impeller of the inner corner of the inlet of the pulp pump; vacuum air pumping is used to effectively remove the gas released by the pulp fibers, and the cavitation phenomenon is eliminated; and the gas-water separation circulation system not only ensures the non-blockage conveying of the high-concentration slurry, but also keeps the constant concentration value of the slurry, so the automation of modern papermaking is realized.
Description
Affiliated technical field
The utility model relates to the paper pulp conveying equipment in a kind of paper-making process, particularly the centrifugal pulp pump of a kind of interior turning water spray high concentration wherein.
Background technique
In paper industry, pulp pump is used to realize the conveying to paper pulp.According to the difference of pulp quality concentration, generally be divided into low density pulp pump (concentration is less than 7%), middle concentration pulp pump (concentration is between 7% and 15%) and high concentration paper pulp pump (concentration is greater than 15%).Along with going deep into of low-carbon (LC) notion, paper technology just towards in dense technical development, adopting the medium consistency bleaching technology not only can reduce bleaching pollutes, and can energy saving, save the bleaching agent consumption, reduce bleaching aqueous, improve pulp brightness, and the centrifugal pulp pump of high concentration is the key equipment of dense technology in realizing.But it is very poor that pulp density surpasses 12% its flowability of back, makes to carry very difficultly, becomes global papermaking industry and be difficult to the technical bottleneck of capturing for a long time, and the used centrifugal pump of China's tradition paper-making industry generally can only reach 6%, and its highest conveying pulp density also is lower than 8%.Modal fault is that paper pulp fiber accumulation is blocked on the impeller of corner in the pulp pump inlet, cause centrifugal can't proper functioning; And paper pulp fiber contains a large amount of gases, and under centrifugal action, position, paraxial place can produce transient negative pressure, will discharge a large amount of gases, and serious cavitation phenomenons causes centrifugal pump to lose efficacy.Therefore, general centrifugal stock pump surpasses at 10% o'clock in concentration and all is difficult to realize proper functioning, the high-lift transportation work of underflow material in can't being competent at.
Summary of the invention
The purpose of this utility model is to provide a kind of interior turning water spray high concentration centrifugal pulp pump, and working concentration is 12% o'clock, and lift can reach 100 meters, and maximum concentration can reach 20%.Effect of the present utility model is the limitation that overcomes prior art, satisfies the needs of new and effective production procedure.To achieve these goals, the utility model adopts following technological scheme:
Water spray high concentration centrifugal pulp pump in turning in a kind of, it comprises main shaft 1, mechanical seal 2, pump postoperculum 5, pump head spiral case 9, impeller 10, turbulent flow generator 13, high-pressure service pump 15, steam-water separator 18 and vacuum pump 20 make up, its specialization is: high pressure water injection through hole 11, storage chamber 131 and high pressure water return port 133, the place of turning vacuumizes aperture 103 in the impeller, vacuum hole 22 on the pump postoperculum, vacuum suction pipe 21, vacuum pump 20, outlet pipe 19, steam-water separator 18, suction sleeve 17, high-pressure service pump 15, high pressure water main 16 and high pressure water inlet 23 constitute vacuum suction, the carbonated drink separating system that sprays water with high pressure;
High pressure water injection through hole 11 in the main shaft 1;
Have on the impeller 10 that the place of turning vacuumizes aperture 103 in the impeller;
The outer choma 137 of choma 135 and ring-type hydraulic spray is combined into the ring-type hydraulic spray in the ring-type hydraulic spray in the turbulent flow generator 13.
The advantage of this system is: efficiently solve the paper pulp fiber accumulation with the ring-type hydraulic spray and be blocked in the possibility on the impeller of turning in the pulp pump inlet; Effectively get rid of the gas that paper pulp fiber discharged with vacuum suction, eliminated cavitation phenomenons; The carbonated drink separating system had both guaranteed that the nothing of middle and high concentration slurry stop up to carry, and the concentration value that has kept being transferred slurry again is constant, has realized the modern paper automation.Effect of the present utility model is the limitation that overcomes prior art, satisfies the needs of new and effective production procedure.
Description of drawings
Accompanying drawing is the pump head structure and the systemic circulation schematic representation of water spray high concentration centrifugal pulp pump in turning in the utility model, has omitted the bearing support pump housing part of supports main shaft and pump head effect among the figure.
Embodiment
1 is main shaft in the accompanying drawing, is used for transmitting torque, run through wherein be high pressure water injection through hole 11; The 2nd, mechanical seal is used for the pump chamber fluid-tight; The 3rd, machine envelope screw is used for mechanical seal is fixed on pump postoperculum 5; The 4th, the retaining pulp sheets is used to stop that the flow through place of turning in the impeller vacuumizes the slurry of aperture 103; The 5th, pump postoperculum adopts bascule to make things convenient for the dismounting of impeller 10; The 6th, the pump housing and bearing support pump housing connection part are used to support pump head integral body; The 7th, bonnet spiral case attachment screw; The 8th, seal ring; The 9th, the pump head spiral case is used to make up hydraulic model, material feeding mouth 12, discharge port 14; The 10th, impeller adopts the semi-open type structure to be used to transmit slurry, and the 103rd, the place of turning vacuumizes aperture in the impeller, is used to extract out the gas that slurry discharges; The 13rd, turbulent flow generator, have the irregular stator 138 of multi-disc and be used to strengthen paper pulp turbulization flowability, the high pressure water return port 133 of storage chamber 131 and a plurality of annular configuration is set in the turbulent flow generator 13, the outer choma 137 of choma 135 and ring-type hydraulic spray is combined into the ring-type hydraulic spray in the ring-type hydraulic spray in the turbulent flow generator 13, is used to eliminate the fibre pulp accumulation obstruction of corner in the pump head; The 15th, high-pressure service pump; The 16th, the high pressure water main; The 17th, suction sleeve; The 18th, steam-water separator is directly drained separated gas; The 19th, outlet pipe; The 20th, vacuum pump; The 21st, the vacuum suction pipe; The 22nd, the vacuum hole on the pump postoperculum; The 23rd, the high pressure water inlet.
When starting working, main shaft 1 passes to impeller 10 with moment of torsion, also passes to turbulent flow generator 13 simultaneously, strengthens paper pulp turbulization flowability by means of himself having the irregular stator 138 of multi-disc, has avoided slurry sediment; Have at least two positive blades 102 of curved surface under centrifugal action, paper making pulp to be discharged from the outlet 14 of pump head spiral case 9 after suction port 12 sucks also supercharging on the impeller 10.Simultaneously, fiber contains the paraxial place that a large amount of gas release are trapped in impeller 10 under the centrifugal action, vacuum pump 20 by the vacuum hole on vacuum suction pipe 21 and the pump postoperculum 22 after, take the place of turning in the impeller away and vacuumize the gas of aperture 103 to eliminate cavitation phenomenons.Wherein keep off pulp sheets 4 and be used for slurry that stop portions is mixed in gas and kept off the flow through centrifugal action of at least two impeller notopodiums 101 of slurry that oar flitch 4 blocks, also discharge from exporting 14; After the subsidiary water yield of taking away entered steam-water separator 18 separation through outlet pipe 19 when vacuum pump 20 siphoned away gas, be injected into high pressure water inlet 23 by high-pressure service pump 15 superchargings by high pressure water main 16 again through suction sleeve 17.So circulation had both been eliminated interior corner fiber and had been stopped up and cavitation phenomenons, and it is constant to remain the flow constant concentration.The utility model has accomplished that working concentration is at 12% o'clock, and lift can reach 100 meters, and maximum concentration can reach 20%, has satisfied the needs of modern new and effective paper production process automation.
Claims (5)
1. water spray high concentration centrifugal pulp pump in turning in a kind, it comprises main shaft (1), mechanical seal (2), pump postoperculum (5), pump head spiral case (9), impeller (10), turbulent flow generator (13), high-pressure service pump (15), steam-water separator (18) and vacuum pump (20) are formed, it is characterized in that: high pressure water injection through hole (11), storage chamber (131) and high pressure water return port (133), the place of turning vacuumizes aperture (103) in the impeller, vacuum hole on the pump postoperculum (22), vacuum suction pipe (21), vacuum pump (20), outlet pipe (19), steam-water separator (18), suction sleeve (17), high-pressure service pump (15), high pressure water main (16) and high pressure water inlet (23) are formed vacuum suction, the carbonated drink separating system that sprays water with high pressure.
2. water spray high concentration centrifugal pulp pump in turning in according to claim 1, it is characterized in that: main shaft (1) axle center is provided with high pressure water injection through hole (11).
3. the centrifugal pulp pump of turning water spray high concentration in according to claim 1 is characterized in that: have on the impeller (10) that the place of turning vacuumizes aperture (103) in the impeller.
4. water spray high concentration centrifugal pulp pump in turning is characterized in that: storage chamber (131) and high pressure water return port (133) are set in the turbulent flow generator (13) in according to claim 1.
5. water spray high concentration centrifugal pulp pump in turning in according to claim 1 is characterized in that: the outer choma (137) of choma (135) and ring-type hydraulic spray is combined into the ring-type hydraulic spray in the ring-type hydraulic spray in the turbulent flow generator (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200448467U CN201908847U (en) | 2011-02-14 | 2011-02-14 | Inner corner water injection and high concentration centrifuge pulp pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200448467U CN201908847U (en) | 2011-02-14 | 2011-02-14 | Inner corner water injection and high concentration centrifuge pulp pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908847U true CN201908847U (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200448467U Expired - Fee Related CN201908847U (en) | 2011-02-14 | 2011-02-14 | Inner corner water injection and high concentration centrifuge pulp pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635555A (en) * | 2011-02-14 | 2012-08-15 | 张意立 | High-concentration centrifugal pulp pump capable of spraying water at inner corner |
-
2011
- 2011-02-14 CN CN2011200448467U patent/CN201908847U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635555A (en) * | 2011-02-14 | 2012-08-15 | 张意立 | High-concentration centrifugal pulp pump capable of spraying water at inner corner |
| CN102635555B (en) * | 2011-02-14 | 2014-11-12 | 广东凌霄泵业股份有限公司 | High-concentration centrifugal pulp pump capable of spraying water at inner corner |
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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: 20110727 Termination date: 20120214 |