CN105904589B - A kind of agitating device and its stirring system - Google Patents
A kind of agitating device and its stirring system Download PDFInfo
- Publication number
- CN105904589B CN105904589B CN201610422690.9A CN201610422690A CN105904589B CN 105904589 B CN105904589 B CN 105904589B CN 201610422690 A CN201610422690 A CN 201610422690A CN 105904589 B CN105904589 B CN 105904589B
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- CN
- China
- Prior art keywords
- agitating device
- agitator
- stirring wing
- water
- backpitch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0818—Charging or discharging gates or chutes; Sealing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/12—Supplying or proportioning liquid ingredients
- B28C7/126—Supply means, e.g. nozzles
- B28C7/128—Nozzles; Valves; Valve-actuating means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention provides a kind of agitating device, including agitator；It is divided into lower gray area, convection current mixed zone, upper pool in agitator short transverse from top to down；The top of lower gray area has dust inlet；Convection current mixed zone has grout outlet；Upper pool has water inlet；Water inlet is in the side wall of agitator low side；In agitator, multigroup stirring wing is additionally provided with, the rotating shaft of multigroup stirring wing is coaxial；It is right-handed screw wherein in one group of stirring wing of topmost, remaining group stirring wing is backpitch；Wherein, right-handed screw stirring wing is in lower gray area, and backpitch stirring wing is in upper pool.Compared with prior art, by designing right-handed screw and backpitch in agitator, convection current mixed zone is formed therebetween, in rotation process, right-handed screw stirring wing accelerates concrete grey to sink, and backpitch stirring wing accelerates upper water speed, bulky grain deposition is reduced, and strong convection mixed zone is formed about in grout outlet.
Description
Technical field
The present invention relates to mining industry slurry injection technique field, is specifically used to manufacture the agitating device of cement grout and its stirs
Mix system.
Background technology
The stirring of supporting one-level is mainly for low discharge, low-gravity and slip casting duration short Grouting engineering.
Supporting one-level stirring (ratio of mud 2.5 when slurry specific gravity reaches 1.24 in pulping process:1), there is one-level " to stir
Mix pond " block, be unrestrained grey with stirring the problems such as uneven, engineering can not be met to grout coordinate ratio requirement；Separately in continuous note for a long time
There is the problems such as centrifugal pump impeller blocks, upper water is not smooth after entering low-gravity slurries, do not reach continuous high strength grouting requirement.
The content of the invention
The invention aims to solve the defects of centrifugal pump impeller blocks, upper water is not smooth in the prior art, there is provided one
Agitating device and its stirring system are planted to solve the above problems.
The present invention is achieved through the following technical solutions above-mentioned technical purpose：
A kind of agitating device, including agitator；It is divided into lower gray area from top to down in the agitator short transverse, convection current mixes
He Qu, upper pool；The top of the lower gray area has dust inlet；The convection current mixed zone has grout outlet；The upper pool tool
There is water inlet；The water inlet in the side wall of the agitator low side in the agitator, being additionally provided with multigroup stirring
Wing, the rotating shaft of multigroup stirring wing are coaxial；It is right-handed screw wherein in one group of stirring wing of topmost, remaining group stirring wing is anti-
Spiral；Wherein, the right-handed screw stirring wing is in the lower gray area, and the backpitch stirring wing is in the upper pool.
Preferably, the dust inlet is in the side roof part away from the grout outlet.
Preferably, the water inlet water column injection direction is consistent with the direction of motion of backpitch stirring wing.
Preferably, the grout outlet includes internal orifice and collar extension；The internal orifice is opened in the side wall of the agitator；Institute
The external stability for stating internal orifice has attachment means；The collar extension is opened in the attachment means.
Preferably, the collar extension is higher than the internal orifice.
Preferably, cement granules sinking speed in hydrostatic body：V1=((ρs-ρ)gd2μ=0.003 of)/18 (m/s)；
Wherein：ρsFor cement gray density, unit Kg/m3；ρ is water density, unit Kg/m3；G is acceleration of gravity, single
Position is m/s2；D is the cement-particle size of proportion >=97%, unit m；μ be water coefficient of dynamic viscosity, unit Pas；
Water speed V on the upper pool section2It is taken as nV1, i.e.,：V2=nV1=VWater inlet÷(3600×r2× 3.14), r is to stir
Mix a barrel radius, VWater inletFor automatic feeding water amount 25m3/h；As n=1, r=0.8m；As n=2, r=0.6m；As n=3, r=
0.5m。
Preferably, n=2.
Preferably, the agitator is highly 115cm；Liquid level is 95cm in the agitator；Wherein descend gray area
15cm, convection current mixed zone 20cm, upper pool 60cm；Along away from the agitator upper edge 35cm on the internal orifice.
Preferably, the convection current mixed zone is formed between the right-handed screw and backpitch adjacent thereto.
The present invention also provides a kind of automatic slurrying system,：Including one-level agitating device, two level agitating device；The one-level
Agitating device is the agitating device described in any of the above-described technical scheme；The collar extension passes through pipeline and the two level agitating device
Connection, the grout outlet of the one-level agitating device are higher than the stock inlet of second agitating device.
The present invention compared with prior art, has the advantages that：
By designing right-handed screw and backpitch in agitator, convection current mixed zone is formed therebetween, in rotation process, just
Auger wing accelerates concrete grey to sink, and backpitch stirring wing accelerates upper water speed, reduces bulky grain deposition, and attached in grout outlet
It is near to form strong convection mixed zone；
High-order grout outlet, avoids slurries and is precipitated in pipeline, finally block pipeline；
Because water inlet water column injection direction is consistent with the direction of motion of backpitch stirring wing, using water flow jet speed,
Evoke bottom deposit particulate matter；
It is 0.6m by the radial design of agitator according to calculating, present construction demand can not only be met, experiment shows,
Do not occur unrestrained ash during slip casting, block and stir phenomena such as uneven, engineering progress is smooth；
15cm provided by the invention lower gray area, 20cm convection current mixed zone, 65cm upper pool so that agitating device knot
Structure is exquisite, and operating efficiency is high, easy to maintain；
The design of attachment means, connect the inside and outside mouth of grout outlet, and collar extension is higher than internal orifice certain altitude, is to ensure that
The presence of lower gray area；Otherwise, ash is directly gushed out by slurry outlet.
Brief description of the drawings
Fig. 1 is a kind of structural representation of agitating device of the present invention.
Embodiment
The effect of to make to architectural feature of the invention and being reached, has a better understanding and awareness, to preferable
Embodiment and accompanying drawing coordinate detailed description, are described as follows：
A kind of automatic slurrying system, including one-level agitating device, two level agitating device (not shown)；One-level stirring dress
Put and be connected with two level agitating device by pipeline 1.
One-level agitating device, including agitator；It is divided into lower gray area 21, convection current mixing in agitator short transverse from top to down
Area 22, upper pool 23；The top of lower gray area 21 has dust inlet 211；Convection current mixed zone 22 has grout outlet 221；Upper pool 23
With water inlet 231；In agitator, multigroup stirring wing is additionally provided with, the rotating shaft of multigroup stirring wing is coaxial.Wherein in most upper
One group of portion stirring wing is right-handed screw, and remaining group stirring wing is backpitch.Wherein, right-handed screw stirring wing is in lower gray area 21, anti-spiral shell
Rotation stirring wing is in upper pool 23.
The grout outlet 221 of automatic slurrying system provided by the invention, wherein one-level agitating device is higher than two level agitating device
Stock inlet.
Provided by the invention and agitating device, altogether there is provided three groups of stirring wings, topmost one group is that right-handed screw stirs
Wing 24, below two groups be backpitch stirring wing 25.Between right-handed screw stirring wing 24 and backpitch stirring wing 25 adjacent thereto
A convection current mixed zone 22 is formed, purpose stirs substantially before two level agitating device is entered.
One-level agitating device provided by the invention, dust inlet 211 away from grout outlet 221 a side roof part, be easy to cement
Ash is sufficiently mixed stirring with water.Water inlet 231 is in the low side side wall of agitator, its water column injection direction and backpitch stirring wing
25 direction of motion is consistent, using water flow jet speed, evokes bottom deposit particulate matter.
Grout outlet 221 provided by the invention includes internal orifice 2211 and collar extension 2212；Internal orifice 2211 is opened in the side of agitator
On wall；There are attachment means 2213 in the external stability of internal orifice 2211；Collar extension 2212 is opened in attachment means 2213.Collar extension 2212
Higher than internal orifice 2211, and the lower edge of collar extension 2212 and lower gray area 21 are contour, i.e., contour with the liquid level in agitator, be easy to slurries from
Collar extension 2212 flows out, and ensures the liquid level in agitator.After cement mortar is agitated, enter attachment means from the overflow of internal orifice 2211
2213, the abatement by attachment means 2213 to its speed, cement mortar is at the uniform velocity flowed into the second agitating device from collar extension 2212.More
Importantly, the design of attachment means 2213, connects the inside and outside mouth of grout outlet, and collar extension is higher than internal orifice certain altitude, is
Ensure the presence of lower gray area；Otherwise, ash is directly gushed out by slurry outlet.
According to Stokes formula, cement granules are assumed to be spherical, cement granules sinking speed in hydrostatic body：
V1=((ρs-ρ)gd2μ=0.003 of)/18 (m/s)；
Wherein：ρsFor cement gray density, unit Kg/m3；ρ is water density, unit Kg/m3；G is acceleration of gravity, single
Position is m/s2；D is the cement-particle size of proportion >=97%, unit m；μ be water coefficient of dynamic viscosity, unit Pas；
A large amount of depositions occur in stirring bottom of the barrel for preventing and treating cement granules, influence normal slip casting, water on the upper section of pool 23
Speed V2It is taken as nV1, i.e.,：V2=nV1=VWater inlet÷(3600×r2× 3.14), r is agitator radius, VWater inletFor automatic feeding water amount
25m3/h；As n=1, r=0.8m；As n=2, r=0.6m；As n=3, r=0.5m.
After many experiments, as n=2, when r=0.6, i.e. agitator radius are 0.6m, live work disclosure satisfy that
It is required.
In order that mixing effect is more preferable, agitator provided by the invention is highly 115cm；Liquid level is 95cm in bucket,
Wherein, internal orifice 2211 as lower gray area 21, that is, descends 21 high 15cm of gray area, right-handed screw stirring wing 24 away from agitator upper edge 35cm
Concrete grey is conveyed downwards.22 high 20cm of convection current mixed zone, it is right-handed screw stirring wing 24 and backpitch stirring wing adjacent thereto
Region between 25.Upper 23 high 65cm of pool.Right-handed screw stirring wing 24 accelerates concrete grey to sink, in the acceleration of backpitch stirring wing 25
Water speed, bulky grain deposition is reduced, and strong convection mixed zone is formed about in grout outlet, make water and concrete grey in convection current mixed zone
22 are sufficiently mixed.
The field test of one-level agitating device, scene pass through increasing to increase upper water speed to reduce cement granules deposition
Big stirring motor power, stirring wing width and the reduction size of water inlet 231 are come what is realized, and field test data is shown, such as table 1
Shown, new one-level stirring meets production requirement.
Table 1：Field sampling test number and design value comparison table
Scene is stirred by the one-level of redesign and has been injected into slurry amount 11400m3, the wherein slurry amount 3600m of proportion 1.23, than
Weigh 1.3 slurry amount 5100m3, proportion 1.4 and with starching amount 2700m3, do not occur unrestrained ash during slip casting, block and stir not
Phenomena such as uniform, engineering progress are smooth.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its
Equivalent defines.
Claims (9)
- A kind of 1. agitating device, it is characterised in that：Including agitator；It is divided into lower ash from top to down in the agitator short transverse Area, convection current mixed zone, upper pool；The top of the lower gray area has dust inlet；The convection current mixed zone has grout outlet；It is described Upper pool has water inlet；The water inlet is in the side wall of the agitator low side；In the agitator, it is additionally provided with Multigroup stirring wing, the rotating shaft of multigroup stirring wing are coaxial；It is right-handed screw wherein in one group of stirring wing of topmost, remaining group is stirred It is backpitch to mix wing；Wherein, the right-handed screw stirring wing is in the lower gray area, and the backpitch stirring wing is in the upper water Area；The grout outlet includes internal orifice and collar extension；The internal orifice is opened in the side wall of the agitator；In the outside of the internal orifice It is fixed with attachment means；The collar extension is opened in the attachment means.
- A kind of 2. agitating device according to claim 1, it is characterised in that：The dust inlet is in the remote grout outlet One side roof part.
- A kind of 3. agitating device according to claim 1, it is characterised in that：The water inlet water column injection direction and anti-spiral shell The direction of motion for revolving stirring wing is consistent.
- A kind of 4. agitating device according to claim 1, it is characterised in that：The collar extension is higher than the internal orifice.
- A kind of 5. agitating device according to claim 1, it is characterised in that：Cement granules sinking speed in hydrostatic body：V1 =((ρs-ρ)gd2μ=0.003 of)/18 (m/s)；Wherein：ρsFor cement gray density, unit Kg/m3；ρ is water density, unit Kg/m3；G is acceleration of gravity, and unit is m/s2；D is the cement-particle size of proportion >=97%, unit m；μ be water coefficient of dynamic viscosity, unit Pas；Water speed V on the upper pool section2It is taken as nV1, i.e.,：V2=nV1=VWater inlet÷(3600×r2× 3.14), r is agitator Radius, VWater inletFor automatic feeding water amount 25m3/h；As n=1, r=0.8m；As n=2, r=0.6m；As n=3, r= 0.5m。
- A kind of 6. agitating device according to claim 5, it is characterised in that：N=2.
- A kind of 7. agitating device according to claim 1, it is characterised in that：The agitator is highly 115cm；It is described to stir It is 95cm to mix liquid level in bucket；Wherein descend gray area 15cm, convection current mixed zone 20cm, upper pool 60cm；On the internal orifice along away from The agitator upper edge 35cm.
- A kind of 8. agitating device according to claim 1, it is characterised in that：The right-handed screw and backpitch adjacent thereto Between form the convection current mixed zone.
- A kind of 9. automatic slurrying system, it is characterised in that：Including one-level agitating device, two level agitating device；The one-level stirring Device is any described agitating device of the claims 1 to 8；The collar extension of the one-level agitating device by pipeline with it is described Two level agitating device connects.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422690.9A CN105904589B (en) | 2016-06-08 | 2016-06-08 | A kind of agitating device and its stirring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422690.9A CN105904589B (en) | 2016-06-08 | 2016-06-08 | A kind of agitating device and its stirring system |
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| Publication Number | Publication Date |
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| CN105904589A CN105904589A (en) | 2016-08-31 |
| CN105904589B true CN105904589B (en) | 2018-01-26 |
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| CN113998905B (en) * | 2021-12-24 | 2022-03-22 | 中南大学 | Dolomite calcined dolomite digestion separation method and device |
| CN115773970B (en) * | 2022-11-25 | 2023-06-27 | 西安水文水资源勘测中心 | Suspended sediment particle image acquisition system and method |
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|---|---|---|---|---|
| CN101164755A (en) * | 2004-06-16 | 2008-04-23 | 胡康宁 | Anti-cracking modification cement production equipment |
| CN203317550U (en) * | 2013-05-09 | 2013-12-04 | 常州市新武机械有限公司 | Controllable discharging high-concentration stirrer |
| DE202015101646U1 (en) * | 2015-04-01 | 2015-04-17 | Zirun Wang | Easy to use stir bar |
| CN204673790U (en) * | 2015-04-29 | 2015-09-30 | 盛铁丰 | A kind of cement stirring device |
| CN205201796U (en) * | 2015-09-30 | 2016-05-04 | 金川集团股份有限公司 | Ground paste agitating unit |
| CN205201800U (en) * | 2015-12-09 | 2016-05-04 | 河北钢铁集团矿业有限公司 | Mining high -efficient agitating unit who fills mortar |
| CN205668325U (en) * | 2016-06-08 | 2016-11-02 | 淮南矿业(集团)有限责任公司 | A kind of agitating device and stirring system thereof |
-
2016
- 2016-06-08 CN CN201610422690.9A patent/CN105904589B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101164755A (en) * | 2004-06-16 | 2008-04-23 | 胡康宁 | Anti-cracking modification cement production equipment |
| CN203317550U (en) * | 2013-05-09 | 2013-12-04 | 常州市新武机械有限公司 | Controllable discharging high-concentration stirrer |
| DE202015101646U1 (en) * | 2015-04-01 | 2015-04-17 | Zirun Wang | Easy to use stir bar |
| CN204673790U (en) * | 2015-04-29 | 2015-09-30 | 盛铁丰 | A kind of cement stirring device |
| CN205201796U (en) * | 2015-09-30 | 2016-05-04 | 金川集团股份有限公司 | Ground paste agitating unit |
| CN205201800U (en) * | 2015-12-09 | 2016-05-04 | 河北钢铁集团矿业有限公司 | Mining high -efficient agitating unit who fills mortar |
| CN205668325U (en) * | 2016-06-08 | 2016-11-02 | 淮南矿业(集团)有限责任公司 | A kind of agitating device and stirring system thereof |
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| CN105904589A (en) | 2016-08-31 |
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