CN105904589A - Stirring device and stirring system thereof - Google Patents
Stirring device and stirring system thereof Download PDFInfo
- Publication number
- CN105904589A CN105904589A CN201610422690.9A CN201610422690A CN105904589A CN 105904589 A CN105904589 A CN 105904589A CN 201610422690 A CN201610422690 A CN 201610422690A CN 105904589 A CN105904589 A CN 105904589A
- Authority
- CN
- China
- Prior art keywords
- stirring
- agitating device
- agitator
- water
- fins
- Prior art date
- 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
Landscapes
- 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 invention provides a stirring device. The stirring device comprises a stirring barrel, wherein the stirring barrel is divided into an ash discharging region, a convection mixing region and a water feeding region from top to bottom in the height direction; an ash discharging opening is formed in the top of the ash discharging region; the convection mixing region is provided with a slurry outlet; the water feeding region is provided with a water inlet; the water inlet is positioned in a side wall of the lower end of the stirring barrel; a plurality of groups of stirring fins are further arranged in the stirring barrel; rotating shafts of the different groups of the stirring fins are coaxial; the uppermost group of stirring fins are forward spinning stirring fins while the rest groups of stirring fins are reverse spinning stirring fins; the forward spinning stirring fins are positioned in the ash discharging region; and the reverse spinning stirring fins are positioned in the water feeding region. Compared with the prior art, the stirring device has the advantages that the forward spinning stirring fins and the reverse spinning stirring fins are designed in the stirring barrel, the convection mixing region is formed between the forward spinning stirring fins and the reverse spinning stirring fins, in a rotating process, the forward spinning stirring fins accelerate sinking of cement ash, the reverse spinning stirring fins increase water feeding speed, therefore, deposited large particles are reduced, and the strong convection mixing region is formed nearby the slurry outlet.
Description
Technical field
The present invention relates to mining industry slurry injection technique field, specifically for manufacturing agitating device and the stirring system thereof of cement grout
System.
Background technology
Supporting one-level stirs the Grouting engineering short mainly for low discharge, low-gravity and slip casting persistent period.
When slurry specific gravity reaches 1.24 (ratio of mud 2.5:1), there is one-level " stirring pool " in pulping process in the stirring of supporting one-level
The problems such as blocking, unrestrained ash and stirring are uneven, it is impossible to meet engineering to grout coordinate ratio requirement；Low ratio separately it is continuously injected into for a long time
The problems such as centrifugal pump impeller blocks, upper water is the most smooth occur after weight serosity, does not reaches continuous high strength grouting requirement.
Summary of the invention
The invention aims to solve the defects such as centrifugal pump impeller in prior art blocks, upper water is the most smooth, it is provided that one is stirred
Mix device and stirring system thereof to solve the problems referred to above.
The present invention is achieved through the following technical solutions above-mentioned technical purpose:
A kind of agitating device, including agitator；Lower gray area, convection current mixing it is divided into from top to down in described agitator short transverse
District, upper pool；The top of described lower gray area has dust inlet；Described convection current mixed zone has grout outlet；Described upper pool has
There is water inlet；Described water inlet in described agitator, is additionally provided with and organizes stirring more on the sidewall of described agitator low side
Wing, the rotating shaft of described many group stirring wings is coaxial；Wherein being in one group of stirring wing of topmost is right-handed screw, and remaining group stirring wing is
Backpitch；Wherein, described right-handed screw stirring wing is in described lower gray area, and described backpitch stirring wing is in described upper pool.
Preferably, described dust inlet is at the side roof part away from described grout outlet.
Preferably, described water inlet water column injection direction is consistent with the direction of motion of backpitch stirring wing.
Preferably, described grout outlet includes internal orifice and collar extension；Described internal orifice is opened on the sidewall of described agitator；Described
The external stability of internal orifice has attachment means；Described collar extension is opened in described attachment means.
Preferably, described collar extension is higher than described internal orifice.
Preferably, cement granules sedimentation velocity: V in hydrostatic body1=((ρs-ρ)gd2μ=0.003)/18 (m/s)；
Wherein: ρsFor concrete grey density, unit is Kg/m3；ρ is water density, and unit is Kg/m3；G is acceleration of gravity, single
Position is m/s2；D is proportion >=97% cement-particle size, and unit is m；μ is the coefficient of dynamic viscosity of water, and unit is Pa s；
Water speed V on the section of described upper pool2It is taken as nV1, it may be assumed that V2=nV1=VWater inlet÷(3600×r2× 3.14), r is for stirring
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, described agitator height is 115cm；In described agitator, liquid level is 95cm；Wherein descend gray area 15cm,
Convection current mixed zone 20cm, upper pool 60cm；Along away from described agitator upper edge 35cm on described internal orifice.
Preferably, described convection current mixed zone is formed between described right-handed screw and the backpitch being adjacent.
The present invention also provides for a kind of automatic slurrying system: include one-level agitating device, two grades of agitating devices；Described one-level stirs
Device is the agitating device described in any of the above-described technical scheme；Described collar extension is connected with described two grades of agitating devices by pipeline,
The grout outlet of described one-level agitating device is higher than the stock inlet of described second agitating device.
The present invention compared with prior art, has the advantages that
By designing right-handed screw and backpitch in agitator, form therebetween convection current mixed zone, in rotation process, positive spiral shell
Rotation stirring wing accelerates concrete grey and sinks, and backpitch stirring wing accelerates upper water speed, reduces bulky grain deposition, and attached at grout outlet
Nearly formation strong convection mixed zone；
High-order grout outlet, it is to avoid serosity precipitates in pipeline, finally blocks pipeline；
Owing to water inlet water column injection direction is consistent with the direction of motion of backpitch stirring wing, utilizes water flow jet speed, evoke
Bottom deposit particulate matter；
According to calculating, being 0.6m by the radial design of agitator, can not only meet present construction demand, experiment shows, note
Not occurring unrestrained ash during slurry, block and stir the phenomenons such as uneven, engineering progress is smooth；
The lower gray area of 15cm of present invention offer, the convection current mixed zone of 20cm, the upper pool of 65cm so that agitating device is tied
Structure is exquisite, and work efficiency is high, and it is convenient to safeguard；
The design of attachment means, makes the inside and outside mouth of grout outlet connect, and collar extension is higher than internal orifice certain altitude, is to ensure that down
The existence of gray area；Otherwise, ash is directly gushed out by slurry outlet.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of agitating device of the present invention.
Detailed description of the invention
By making the architectural feature to the present invention and effect of being reached have a better understanding and awareness, in order to preferably to implement
Example and accompanying drawing coordinate detailed description, are described as follows:
A kind of automatic slurrying system, including one-level agitating device, two grades of agitating device (not shown)s；One-level agitating device
It is connected by pipeline 1 with two grades of agitating devices.
One-level agitating device, including agitator 2；Lower gray area 21, convection current it is divided into mix in agitator 2 short transverse from top to down
Close district 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 has water inlet 231；In agitator 2, being additionally provided with and organize stirring wing more, the rotating shaft of many group stirring wings is coaxial.
Wherein being in one group of stirring wing of topmost is right-handed screw, and remaining group stirring wing is backpitch.Wherein, right-handed screw stirring wing is in
Lower gray area 21, backpitch stirring wing is in pool 23.
The automatic slurrying system that the present invention provides, wherein grout outlet 221 the entering higher than two grades of agitating devices of one-level agitating device
Prize mouth.
The present invention provide and agitating device, be altogether provided with three groups of stirring wings, topmost one group is right-handed screw stirring wing 24,
Two groups is backpitch stirring wing 25 below.Formed between right-handed screw stirring wing 24 and the backpitch stirring wing 25 being adjacent
One convection current mixed zone 22, purpose stirs before entering two grades of agitating devices substantially.
The one-level agitating device that the present invention provides, dust inlet 211 is at the side roof part away from grout outlet 221, it is simple to concrete grey
It is sufficiently mixed stirring with water.Water inlet 231 is in the bottom sidewall of agitator 2, and its water column injection direction stirs with backpitch
The direction of motion of wing 25 is consistent, utilizes water flow jet speed, evokes bottom deposit particulate matter.
The grout outlet 221 that the present invention provides includes internal orifice 2211 and collar extension 2212；Internal orifice 2211 is opened in the side of agitator 2
On wall；External stability at internal orifice 2211 has attachment means 2213；Collar extension 2212 is opened in attachment means 2213.Collar extension
2212 are higher than internal orifice 2211, and the lower edge of collar extension 2212 is contour with lower gray area 21, i.e. contour with the liquid level in agitator 2,
It is easy to serosity flow out from collar extension 2212, it is ensured that the liquid level in agitator 2.After cement mortar is agitated, from internal orifice 2211
Overflow enters attachment means 2213, through the attachment means 2213 abatement to its speed, makes cement mortar from collar extension 2212 at the uniform velocity
Flow into the second agitating device.The more important thing is, the design of attachment means 2213, make the inside and outside mouth of grout outlet connect, and
Collar extension is higher than internal orifice certain altitude, is to ensure that the existence of lower gray area；Otherwise, ash is directly gushed out by slurry outlet.
According to Stokes formula, cement granules is assumed to be spherical, and cement granules is sedimentation velocity in hydrostatic body:
V1=((ρs-ρ)gd2μ=0.003)/18 (m/s)；
Wherein: ρsFor concrete grey density, unit is Kg/m3；ρ is water density, and unit is Kg/m3；G is acceleration of gravity, single
Position is m/s2；D is proportion >=97% cement-particle size, and unit is m；μ is the coefficient of dynamic viscosity of water, and unit is Pa s；
Bottom agitator 2, there is a large amount of deposition for preventing and treating cement granules, affect normal slip casting, water speed on the section of upper pool 23
Degree V2It is taken as nV1, it may be assumed that V2=nV1=VWater inlet÷(3600×r2× 3.14), r is agitator 2 radius, VWater inletFor automatically entering
Water yield 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, r=0.6, when i.e. the radius of agitator 2 is 0.6m, it is possible to meet work on the spot
Requirement.
In order to make mixing effect more preferable, agitator 2 height that the present invention provides is 115cm；In bucket, liquid level is 95cm,
Wherein, internal orifice 2211 is away from agitator 2 upper edge 35cm, as lower gray area 21, i.e. descends the high 15cm of gray area 21, and right-handed screw stirs
Mix wing 24 to be carried downwards by concrete grey.The high 20cm in convection current mixed zone 22, for right-handed screw stirring wing 24 and the anti-spiral shell being adjacent
Region between rotation stirring wing 25.The upper high 65cm in pool 23.Right-handed screw stirring wing 24 accelerates concrete grey, backpitch
Stirring wing 25 accelerates upper water speed, reduces bulky grain deposition, and is formed about strong convection mixed zone at grout outlet, makes Shui Heshui
Plaster is sufficiently mixed in convection current mixed zone 22.
The on-the-spot test of one-level agitating device, scene is deposited to reduce cement granules to increase upper water speed, is stirred by increase
Mixing power of motor, stirring wing width and reduce what water inlet 231 size realized, field test data shows, such as table 1
Shown in, the stirring of new one-level meets production requirement.
Table 1: field investigation and sampling test number and design load synopsis
Slurry amount 11400m is had been injected into by the one-level stirring scene redesigned3, wherein slurry amount 3600m of proportion 1.23, than
Weigh slurry amount 5100m of 1.33, proportion 1.4 and with starching amount 2700m3, unrestrained ash does not occurs during slip casting, blocks and stir
Mixing the phenomenons such as uneven, engineering progress is smooth.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technical staff of the industry
It should be appreciated that the present invention is not restricted to the described embodiments, the simply present invention's described in above-described embodiment and description is former
Reason, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, these changes and improvements
Both fall within the range of claimed invention.The protection domain of application claims is by appending claims and equivalent thereof
Thing defines.
Claims (10)
1. an agitating device, it is characterised in that: include agitator；Lower ash it is divided into from top to down in described agitator short transverse
District, convection current mixed zone, upper pool；The top of described lower gray area has dust inlet；Described convection current mixed zone has grout outlet；Institute
State pool and there is water inlet；Described water inlet is on the sidewall of described agitator low side；In described agitator, also set up
Organizing stirring wing, the rotating shaft of described many group stirring wings is coaxial more；Wherein being in one group of stirring wing of topmost is right-handed screw, remaining group
Stirring wing is backpitch；Wherein, described right-handed screw stirring wing is in described lower gray area, and described backpitch stirring wing is on described
Pool.
A kind of agitating device the most according to claim 1, it is characterised in that: described dust inlet is away from described grout outlet
One side roof part.
A kind of agitating device the most according to claim 1, it is characterised in that: described water inlet water column injection direction and anti-spiral shell
The direction of motion of rotation stirring wing is consistent.
A kind of agitating device the most according to claim 1, it is characterised in that: described grout outlet includes internal orifice and collar extension；Institute
State internal orifice to be opened on the sidewall of described agitator；External stability at described internal orifice has attachment means；Described collar extension is opened in institute
State in attachment means.
A kind of agitating device the most according to claim 4, it is characterised in that: described collar extension is higher than described internal orifice.
A kind of agitating device the most according to claim 1, it is characterised in that: cement granules is sedimentation velocity in hydrostatic body:
V1=((ρs-ρ)gd2μ=0.003)/18 (m/s)；
Wherein: ρsFor concrete grey density, unit is Kg/m3；ρ is water density, and unit is Kg/m3；G is acceleration of gravity, unit
For m/s2；D is proportion >=97% cement-particle size, and unit is m；μ is the coefficient of dynamic viscosity of water, and unit is Pa s；
Water speed V on the section of described upper pool2It is taken as nV1, it may be assumed that V2=nV1=VWater inlet÷(3600×r2× 3.14), r is stirring
Bucket 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 agitating device the most according to claim 6, it is characterised in that: n=2.
A kind of agitating device the most according to claim 4, it is characterised in that: described agitator height is 115cm；Described
In agitator, liquid level is 95cm；Wherein descend gray area 15cm, convection current mixed zone 20cm, upper pool 60cm；On described internal orifice
Along away from described agitator upper edge 35cm.
A kind of agitating device the most according to claim 1, it is characterised in that: described right-handed screw and the backpitch being adjacent
Between form described convection current mixed zone.
10. an automatic slurrying system, it is characterised in that: include one-level agitating device, two grades of agitating devices；Described one-level stirs
Device is the arbitrary described agitating devices of the claims 1 to 9；Described collar extension is by pipeline with described two grades of agitating devices even
Connect.
Priority Applications (1)
| 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 true CN105904589A (en) | 2016-08-31 |
| CN105904589B CN105904589B (en) | 2018-01-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998905A (en) * | 2021-12-24 | 2022-02-01 | 中南大学 | Dolomite calcined dolomite digestion separation method and device |
| CN115773970A (en) * | 2022-11-25 | 2023-03-10 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998905A (en) * | 2021-12-24 | 2022-02-01 | 中南大学 | Dolomite calcined dolomite digestion separation method and device |
| CN115773970A (en) * | 2022-11-25 | 2023-03-10 | 西安水文水资源勘测中心 | Suspended sediment particle image acquisition system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105904589B (en) | 2018-01-26 |
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