CN104210025A - Casting stirrer adopting segmented screw - Google Patents
Casting stirrer adopting segmented screw Download PDFInfo
- Publication number
- CN104210025A CN104210025A CN201410236539.7A CN201410236539A CN104210025A CN 104210025 A CN104210025 A CN 104210025A CN 201410236539 A CN201410236539 A CN 201410236539A CN 104210025 A CN104210025 A CN 104210025A
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- China
- Prior art keywords
- stirred tank
- screw
- screw rod
- external diameter
- cast mixer
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention relates to a casting stirrer adopting a segmented screw. The casting stirrer comprises a vertically arranged stirred tank, a stirring shaft is arranged in the stirred tank, one end of the stirring shaft penetrates out of the upper end of the stirred tank and is connected with a driving device arranged outside the stirred tank, the other end of the stirring shaft is provided with a stirring screw, the stirring screw is composed of an upper screw and a lower screw arranged from top to bottom, the external diameter of the helical blade of the upper screw gradually increases in a pagoda-shaped manner from top to bottom, and the external diameter of the helical blade of the lower screw is greater than or equal to the largest external diameter of the upper screw. The aerated concrete casting stirrer adopting the pagoda-shaped helical blade and increasing guide sleeves with bell mouths and guide cones enhances the stirring effect, changes the flow field of eddy current formed by the screw, reduces the energy consumption of upward change of the flow direction after the contact of the eddy current with the bottom of the stirred tank, enlarges the influence range of eddy current, and eliminates the stirring blind angle at the upper portion of the liquid level of the stirred tank.
Description
Technical field
The present invention relates to a kind of cast mixer adopting segmented screw.
Background technology
Cast mixer is the special equipment of air-entrained concrete building block production line, be mainly used in stirring the slip injecting tank body according to a certain ratio, cement, quick lime, gypsum and aluminium powder cream suspension liquid, make it Homogeneous phase mixing, fully react, and in time mixed slurry is noted in pressing mold frame.Stirring intensity in tank and time, the quality of air entrained concrete to be had a great impact.
Existing casting machine as shown in Figure 1, casting machine primary structure comprises stirred tank 4, charging aperture 2, discharging opening 8, kuppe 7, screw rod 6, shaft 3 and mixer drive 1, drive unit 1 is stirred in stirred tank 4 by shaft 3 drive screw 6 and forms very strong eddy current, destroy the coating of quicklime particles, make it to reach full and uniform mixing.For strengthening mixing effect, existing equipment, usually at the additional cylindrical kuppe 7 of agitating auger, finds that the regional effect of eddy current to stirred tank 4 ullage is very little, does not almost have mixing effect in actual use.
Summary of the invention
The present invention is directed to above-mentioned prior art Problems existing and make improvement, namely technical problem to be solved by this invention is to provide a kind of cast mixer adopting segmented screw, by the eddy current that agitating screw produces, thus make the abundant disturbance of the cement mortar in stirred tank, effectively eliminate the stirring dead angle that stirred tank ullage exists.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of cast mixer adopting segmented screw, comprise the stirred tank vertically placed, shaft is provided with in described stirred tank, one end of described shaft passes the upper end of stirred tank and is connected with the drive unit be arranged on outside stirred tank, the other end of described shaft is provided with agitating screw, described agitating screw is made up of the upper screw rod arranged from top to bottom and lower screw rod, the helicoid leaf external diameter of described upper screw rod becomes large in Pagoda-shaped from top to bottom gradually, the helicoid leaf external diameter of described lower screw rod is more than or equal to the maximum helicoid leaf external diameter of screw rod.
Further, the top week side of described stirred tank is provided with charging aperture, is provided with discharging opening bottom it.
Further, described lower screw jacket has the kuppe be fixed in stirred tank, and described kuppe is fixed in stirred tank by support.
Further, the horn mouth of opening down increase is provided with bottom described kuppe.
Further, described upper screw rod and lower screw rod are multi-head spiral face leaf screw rod.
Further, the end of described lower screw rod is provided with sharp corner square to deflection cone down.
Further, described stirred tank madial wall is vertically evenly equipped with at least one piece of deflection plate, described deflection plate steel plate or angle steel make.
Further, the maximum helicoid leaf external diameter of described screw rod is (0.4 ~ 0.5) with stirred tank internal diameter ratio: 1.
Further, the helicoid leaf of described upper screw rod is varying pitch Archimedes' helicoid leaf, and its pitch angle alpha will increases from small end gradually to large end, namely from along upper screw rod direction from top to bottom helical angle increase gradually.
Further, the helicoid leaf of described lower screw rod is cylindricality slant spiral flights, and its helixangleβ is 50 ° ~ 80 °.
Compared with prior art, the present invention has following beneficial effect: the present invention adopts Pagoda-shaped helicoid leaf at the cast mixer of air entrained concrete, increase with horn mouth kuppe, deflection cone, enhance mixing effect, change the flow field of the leaf one-tenth eddy current of helicoid, decrease eddy current contact stirred tank bottom backward upper change flow direction energy ezpenditure, expand vortes interference scope, eliminate stirred tank ullage exist stirring dead angle.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the organigram of existing product.
Fig. 2 is the organigram of the embodiment of the present invention.
Fig. 3 is the organigram of agitating auger face leaf in the embodiment of the present invention.
In figure: 1-drive unit, 2-charging aperture, 3-shaft, 4-stirred tank, 5-support, 6-agitating screw, 7-kuppe, 8-discharging opening, 9-deflection cone, 10-horn mouth, screw rod under 11-, the upper screw rod of 12-, 13-deflection plate, α-upper screw spiral angle, β-lower screw spiral angle.
Detailed description of the invention
Embodiment one: as shown in Figure 2, a kind of cast mixer adopting segmented screw, comprise the stirred tank 4 vertically placed, shaft 3 is provided with in described stirred tank 4, one end of described shaft 3 passes the upper end of stirred tank 4 and is connected with the drive unit 1 be arranged on outside stirred tank 4, the other end of described shaft 3 is provided with agitating screw, described agitating screw is made up of the upper screw rod 12 arranged from top to bottom and lower screw rod 11, the helicoid leaf external diameter of described upper screw rod 12 becomes large in Pagoda-shaped from top to bottom gradually, the helicoid leaf external diameter of described lower screw rod 11 is more than or equal to the maximum helicoid leaf external diameter of screw rod 12, the helicoid leaf of described upper screw rod 12 and lower screw rod 11 is continuous print, the upper helicoid leaf 12 of described Pagoda-shaped spiral, enhance mixing effect, eliminate the stirring dead angle that stirred tank ullage exists.
In the present embodiment, the top week side of described stirred tank 3 is provided with charging aperture 2, is provided with discharging opening 8. bottom it
In the present embodiment, described lower screw rod 11 overcoat has the kuppe 7 be fixed in stirred tank 4, described kuppe 7 is fixed in stirred tank 4 by support 5, lower screw rod 11 wraps up by described kuppe completely, pressed down past for material by the upper screw rod 12 of Pagoda-shaped, under the acting in conjunction of kuppe 7 and lower screw rod 11, material is by strong stirring and accelerate.
In the present embodiment, bottom described kuppe 7, be provided with the horn mouth 10 of opening down increase.
In the present embodiment, as shown in Figure 3, described upper screw rod 12 and lower screw rod 11 are twin-feed spiral face leaf screw rod; Certainly, also can as required, as adopted the blade of three helicoids.
In the present embodiment, for reducing friction, the end of described lower screw rod 11 is provided with sharp corner square to deflection cone 9 down.
In the present embodiment, for strengthening Flow of Goods and Materials and mixing effect, described stirred tank 4 madial wall is vertically evenly equipped with three pieces of deflection plates 13, described deflection plate 13 steel plate or angle steel make.
In the present embodiment, the maximum helicoid leaf external diameter of described screw rod is (0.4 ~ 0.5) with stirred tank 4 internal diameter ratio: 1.
In the present embodiment, as shown in Figure 3, the helicoid leaf of described upper screw rod 12 is varying pitch Archimedes' helicoid leaf, and its pitch angle alpha will increases from top to bottom gradually, the setting of this parameter, is conducive to strengthening mixing effect and speed, increases the pressure that material flows downward.
In the present embodiment, as shown in Figure 3, the helicoid leaf of described lower screw rod 11 is cylindricality slant spiral flights, its helixangleβ is 50 ° ~ 80 °, the setting of this parameter, is conducive to strengthening mixing effect and speed, increases the pressure that material flows downward, and under the bell-mouthed effect of kuppe, material is provided with the trend of upwards flow circuit.
During work, material is put into stirred tank 4 from charging aperture 2, start drive motors, material upper screw rod 12, lower screw rod 11, with under the common rectified action of bell-mouthed kuppe 7 and deflection plate 13, decrease eddy current contact stirred tank bottom backward upper change flow direction energy ezpenditure, expand vortes interference scope, eliminate stirred tank ullage exist stirring dead angle, material moves along route shown by arrows in Fig. 2 in stirred tank, and material obtains sufficient stirring.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. one kind adopts the cast mixer of segmented screw, comprise the stirred tank vertically placed, it is characterized in that: in described stirred tank, be provided with shaft, one end of described shaft passes the upper end of stirred tank and is connected with the drive unit be arranged on outside stirred tank, the other end of described shaft is provided with agitating screw, described agitating screw is made up of the upper screw rod arranged from top to bottom and lower screw rod, the helicoid leaf external diameter of described upper screw rod becomes large in Pagoda-shaped from top to bottom gradually, the helicoid leaf external diameter of described lower screw rod is more than or equal to the maximum helicoid leaf external diameter of screw rod.
2. the cast mixer of employing segmented screw according to claim 1, is characterized in that: the top week side of described stirred tank is provided with charging aperture, is provided with discharging opening bottom it.
3. the cast mixer of employing segmented screw according to claim 1, is characterized in that: described lower screw jacket has the kuppe be fixed in stirred tank.
4. the cast mixer of employing segmented screw according to claim 3, is characterized in that: the horn mouth being provided with opening down increase bottom described kuppe.
5. the cast mixer of employing segmented screw according to claim 1, is characterized in that: described upper screw rod and lower screw rod are multi-head spiral face leaf screw rod.
6. the cast mixer of employing segmented screw according to claim 1, is characterized in that: the end of described lower screw rod is provided with sharp corner square to deflection cone down.
7. the cast mixer of employing segmented screw according to claim 1, is characterized in that: described stirred tank madial wall is vertically evenly equipped with at least one piece of deflection plate.
8. the cast mixer of employing segmented screw as claimed in any of claims 1 to 7, is characterized in that: the maximum helicoid leaf external diameter of described screw rod is (0.4 ~ 0.5) with stirred tank internal diameter ratio: 1.
9. the cast mixer of employing segmented screw according to claim 8, is characterized in that: the helicoid leaf of described upper screw rod is varying pitch Archimedes' helicoid leaf, and its pitch angle alpha will increases from small end gradually to large end.
10. the cast mixer of employing segmented screw according to claim 9, is characterized in that: the helicoid leaf of described lower screw rod is cylindricality slant spiral flights, and its helixangleβ is 50 ° ~ 80 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410236539.7A CN104210025B (en) | 2014-05-30 | 2014-05-30 | Casting stirrer adopting segmented screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410236539.7A CN104210025B (en) | 2014-05-30 | 2014-05-30 | Casting stirrer adopting segmented screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104210025A true CN104210025A (en) | 2014-12-17 |
| CN104210025B CN104210025B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410236539.7A Active CN104210025B (en) | 2014-05-30 | 2014-05-30 | Casting stirrer adopting segmented screw |
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| CN (1) | CN104210025B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139336A (en) * | 2017-07-21 | 2017-09-08 | 合肥潜望镜机械科技有限公司 | A kind of efficient concrete shotcrete machine |
| CN111906940A (en) * | 2020-07-22 | 2020-11-10 | 华北水利水电大学 | Slurry stirring and spraying machine for gelled sand gravel dam |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210828U (en) * | 1987-07-21 | 1988-05-18 | 河南煤炭科学研究所 | Continuous concrete proportioning and mixing machine |
| GB2274602A (en) * | 1993-01-12 | 1994-08-03 | Keller Ltd | Foamed concrete mixer |
| JP2003159522A (en) * | 2001-11-26 | 2003-06-03 | Kajima Corp | Mixing apparatus and method |
| CN100377769C (en) * | 2003-02-28 | 2008-04-02 | 奥多摩工业株式会社 | Mixing device and slurrying device |
| CN201295986Y (en) * | 2008-10-24 | 2009-08-26 | 秦皇岛通联重工有限公司 | Bitumen cement mortar mixer |
| CN202742519U (en) * | 2012-09-26 | 2013-02-20 | 成都嘉新科技集团有限公司 | Improved dry-mixed mortar mixing device |
| CN203945485U (en) * | 2014-05-30 | 2014-11-19 | 福建海源自动化机械股份有限公司 | A kind of cast mixer that adopts segmented screw |
-
2014
- 2014-05-30 CN CN201410236539.7A patent/CN104210025B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210828U (en) * | 1987-07-21 | 1988-05-18 | 河南煤炭科学研究所 | Continuous concrete proportioning and mixing machine |
| GB2274602A (en) * | 1993-01-12 | 1994-08-03 | Keller Ltd | Foamed concrete mixer |
| JP2003159522A (en) * | 2001-11-26 | 2003-06-03 | Kajima Corp | Mixing apparatus and method |
| CN100377769C (en) * | 2003-02-28 | 2008-04-02 | 奥多摩工业株式会社 | Mixing device and slurrying device |
| CN201295986Y (en) * | 2008-10-24 | 2009-08-26 | 秦皇岛通联重工有限公司 | Bitumen cement mortar mixer |
| CN202742519U (en) * | 2012-09-26 | 2013-02-20 | 成都嘉新科技集团有限公司 | Improved dry-mixed mortar mixing device |
| CN203945485U (en) * | 2014-05-30 | 2014-11-19 | 福建海源自动化机械股份有限公司 | A kind of cast mixer that adopts segmented screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139336A (en) * | 2017-07-21 | 2017-09-08 | 合肥潜望镜机械科技有限公司 | A kind of efficient concrete shotcrete machine |
| CN111906940A (en) * | 2020-07-22 | 2020-11-10 | 华北水利水电大学 | Slurry stirring and spraying machine for gelled sand gravel dam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104210025B (en) | 2017-02-01 |
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Address after: 350101 No. 2 Tieling North Road, Jingxi Town, Minhou County, Fuzhou City, Fujian Province Patentee after: Fujian Haiyuan Composite Materials Technology Co.,Ltd. Address before: 350101 No. 2 Tieling North Road, Jingxi Town, Minhou County, Fuzhou City, Fujian Province Patentee before: FUJIAN HAIYUAN AUTOMATIC EQUIPMENTS Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |