CN1851118A - Moderate high-thick paper pulp fluidifying apparatus - Google Patents
Moderate high-thick paper pulp fluidifying apparatus Download PDFInfo
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- CN1851118A CN1851118A CN 200610040736 CN200610040736A CN1851118A CN 1851118 A CN1851118 A CN 1851118A CN 200610040736 CN200610040736 CN 200610040736 CN 200610040736 A CN200610040736 A CN 200610040736A CN 1851118 A CN1851118 A CN 1851118A
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- vanes
- paper pulp
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- pulp
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Abstract
The invention is a medium-high concentration paper pulp fluidizer, composed mainly of twisted vanes fixed on a hub, where the size, twist angle and number of the vanes are related with kinds and throughput of paper pulp, and its variation relationship: the larger the pumping flow is, the higher the lift is and the larger the size of the vanes is, and simultaneously the size and flow velocity of the pump inlet influence the twisting degree and number of the vanes, and the range of the twist angles of the vanes is 10-75 deg. and the number of the vanes is 3-6; the rotating direction of the vanes are opposite to that of the impeller; the front ends of the vanes partially extend into the pulp in a vertical cylinder, and the roots of the vanes are fixed on the hub. And the invention generates a strong shear stress field depending on the vanes with certain twisting degree to fluidize the medium-high concentration paper pulp so as to implement smooth feeding. And the whole device is reliable to operate, and has better ability to feed the medium-high concentration paper pulp and can feed the paper pulp with a concentration below 15%.
Description
Technical field
The invention belongs to a kind of special construction agitator device, high consistency pulp fluidisation device in refering in particular to.
Background technology
A modern pulp mill is equipped with 150 pumps at least, and paper mill also has the pump about 50 at least.The pump of so big quantity is used, and the reliability of pump, efficient etc. are to smooth production and technological effect decisive role.
According to the flow feature of paper pulp, take all factors into consideration the conveying capacity of pulp pump, what present domestic use was maximum is that concentration is in the low dense Characteristics of Centrifugal Pulp Pump below 5%.Usually earlier its thin up is arrived about 4% concentration, and then carry, be dewatered to next treatment process process at last.Owing to increased the intermediate link of such one " dilution-conveying-dehydration ", production cost is improved greatly, also brought problems such as energy waste, environmental pollution simultaneously.Directly carry middle and high concentration paper pulp, can significantly reduce water consumption, power consumption, chemicals consumption, reduce contaminated wastewater, save factory building space or the like, have immeasurable development potentiality and advantage.High dense conveying technology in the development, high dense transport is very urgent in the development.
In high density stock pump be whole in one of the key equipment of high dense technique device, middle high consistency pulp fluidisation device is the core component of middle high density stock pump.In high consistency pulp fluidisation device be the fluidisation device that finds out on the basis of high consistency pulp hydrodynamic characteristics and flow mechanism under study for action.
By retrieval, also there is not the relevant patent of declaring at present.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, reliable middle high consistency pulp fluidisation device, device has the ability of high consistency pulp in the good transportation.
The technical solution adopted for the present invention to solve the technical problems is: whole device is made up of the blade that is fixed in the meander configuration on the wheel hub, the appearance and size of blade, distortion angle and the number of blade are all relevant with kind, the conveying capacity of carrying paper pulp, its variation relation is: the flow of pump is big more, lift is high more, the appearance and size of blade is big more, what of the blade twist degree and the number of blade size of pump inlet simultaneously and the size of inlet velocity all have influence on, the scope of blade twist angle is 10 °～75 ° in the whole series, and the blade number is 3～6.The blade rotation direction is opposite with the rotation direction of impeller.The fore-end of blade extend in the Storage Tank slurry, and the root of blade is fixed on the wheel hub.
Middle high consistency pulp fluidisation Design of device purpose is to make pulp suspension before entering pumping installations, has certain flowing velocity, realizes fluidisation, has no plugging performance.When the suffered shear stress of paper pulp reached certain value, the paper pulp fiber network began to disintegrate, and the moment point that pulp suspension is reached turbulence state is called the turbulent flow critical point, just the minimum operating point of middle high consistency pulp fluidisation device.
The course of work is: high density stock pump foremost during middle high consistency pulp fluidisation device was fixed in.When central high density stock pump was started working, middle high consistency pulp fluidisation device was along with the rotation of impeller do with rotating speed.Because the special construction of middle high consistency pulp fluidisation blading produces enough big shear rate, makes middle and high concentration paper pulp fluidisation, thereby enters pump inlet smoothly, by middle high density stock pump, finishes the conveying of middle and high concentration paper pulp.
Whole apparatus structure is simple, has the ability of high consistency pulp in the good transportation, can the paper pulp of transportation concentration below 15%.
Description of drawings
Fig. 1 is middle high consistency pulp fluidisation constructional device schematic diagram
1---wheel hub 2---blade
The specific embodiment
Device is made up of the meander configuration blade that is fixed on the wheel hub, as shown in the figure.The number of blade is 3 among the figure, and blade front end distortion angle is 45 °.
High density stock pump foremost during middle high consistency pulp fluidisation device was fixed in.The fore-end of blade extend into the slurry the inside, and the root of blade is fixed on the wheel hub.When entire pump was started working, middle high consistency pulp fluidisation device was along with the rotation of impeller do with rotating speed.
The course of work is: when central high density stock pump was started working, middle high consistency pulp fluidisation device was along with impeller is done to rotate with speed.Because the special construction of the blade of middle high consistency pulp fluidisation device produces enough big shear rate, makes middle and high concentration paper pulp fluidisation, thereby enters pump inlet smoothly, by middle high density stock pump, finishes the conveying of middle and high concentration paper pulp.
Claims (1)
1. middle high consistency pulp fluidisation device, it is characterized in that: whole device is made up of the blade that is fixed in the meander configuration on the wheel hub, the scope of blade twist angle is 10 °～75 ° in the whole series, the blade number is 3～6, the blade rotation direction is opposite with the rotation direction of impeller, the fore-end of blade extend in the Storage Tank slurry, and the root of blade is fixed on the wheel hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610040736 CN1851118A (en) | 2006-05-30 | 2006-05-30 | Moderate high-thick paper pulp fluidifying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610040736 CN1851118A (en) | 2006-05-30 | 2006-05-30 | Moderate high-thick paper pulp fluidifying apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1851118A true CN1851118A (en) | 2006-10-25 |
Family
ID=37132619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610040736 Pending CN1851118A (en) | 2006-05-30 | 2006-05-30 | Moderate high-thick paper pulp fluidifying apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1851118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619779A (en) * | 2012-04-01 | 2012-08-01 | 江苏大学 | Turbulence generator for medium-consistency paper pulp pump |
-
2006
- 2006-05-30 CN CN 200610040736 patent/CN1851118A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619779A (en) * | 2012-04-01 | 2012-08-01 | 江苏大学 | Turbulence generator for medium-consistency paper pulp pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |