EP2617543A1 - Mélangeur de charge pour mélanger un mélange de parement et procédé pour nettoyer ce mélangeur de charge - Google Patents

Mélangeur de charge pour mélanger un mélange de parement et procédé pour nettoyer ce mélangeur de charge Download PDF

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Publication number
EP2617543A1
EP2617543A1 EP12151919.3A EP12151919A EP2617543A1 EP 2617543 A1 EP2617543 A1 EP 2617543A1 EP 12151919 A EP12151919 A EP 12151919A EP 2617543 A1 EP2617543 A1 EP 2617543A1
Authority
EP
European Patent Office
Prior art keywords
mixing
mixer
batch mixer
pan
face mix
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.)
Withdrawn
Application number
EP12151919.3A
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German (de)
English (en)
Inventor
Ole Langkjær Christensen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haarup Maskinfabrik AS
Original Assignee
Haarup Maskinfabrik AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Haarup Maskinfabrik AS filed Critical Haarup Maskinfabrik AS
Priority to EP12151919.3A priority Critical patent/EP2617543A1/fr
Publication of EP2617543A1 publication Critical patent/EP2617543A1/fr
Withdrawn legal-status Critical Current

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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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/95—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B01F31/86—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations with vibration of the receptacle or part of it
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/08—Cleaning containers, e.g. tanks
    • 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
    • B28C5/48—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected by vibrations

Definitions

  • the invention relates to a batch mixer for mixing face mix and a method for cleaning a batch mixer.
  • the face mix can contain colouring means and it can be textured in a variety of ways to resemble other materials, similarly to stamped concrete.
  • face mix is particularly sensitive to hardened lumps of face mix being mixed into the face mix and it is therefore particularly important that the mixer used for mixing the face mix is cleaned thoroughly after the mixer has been emptied to ensure that material is not left behind which could harden and thereby potentially reduce the quality of the next batch to be mixed in the mixer.
  • Face mix is used e.g. at slab and paving stone manufacturing plants and here it is known to use batch mixers for mixing this particular type of concrete but even a batch mixer with the most cleaning-friendly design can be difficult to clean completely and the cleaning process can be time consuming and e.g. require large volumes of water no matter if the cleaning is done manually or by spraying water on inside of the mixing pan by mean of an integrate cleaning system.
  • An object of the invention is therefore to provide for an advantageous cleaning technique for a batch mixer.
  • the invention provides for a batch mixer for mixing face mix.
  • the mixer comprises a mixing pan including one or more discharge openings and a mixer unit comprising a mixer unit drive and one or more mixing means.
  • the mixer further comprises at least one vibrator for making at least parts of the mixing means vibrate so that face mix sticking to the parts of the mixing means is loosened.
  • Providing a batch mixer with a vibrator is advantageous in that the mixed face mix hereby can be cleaned automatically and without the use water. Furthermore, the use of a vibrator connected to the mixer for cleaning purposes enables that vibration cleaning can take place even if face mix ingredients are placed in the mixing pan hereby increasing the capacity of the mixer.
  • batch mixer is to be under stood any kind of mixer comprising a mixing pan with rotating mixing means extending down into the mixing pan.
  • a batch mixer all ingredients are loaded into the mixing pan together or in a pre-defined sequence, and mixed until a homogenous material is produced and discharged from the mixing pan in a single lot.
  • Batch mixer does not include so called “Continuous mixers” where the ingredients are continuously charged into the mixer and where the mixing takes place as the material travels from the charging port(s) to a discharge nozzle, from where it is continuously discharged.
  • Batch mixers exist in a number of design variations and are also known under other names such as counterflow mixer, countercurrent mixer, planetary mixer, stationary pan mixers and vertical axis mixers.
  • said at least one vibrator is connected to said mixing pan.
  • the mixing pan of a batch mixer is directly or indirectly connected to all the parts of a mixer from which face mix should be cleaned and it is therefore advantageous to connect the vibrator to the mixing pan to ensure an efficient distribution of the vibrations.
  • said at least one vibrator is connected to a bottom structure of said mixing pan.
  • said at least one vibrator comprises means for generating vibrations at between 10 and 10,000 Hz, preferably between 80 and 5,000 and most preferred between 150 and 3,000 Hz.
  • the present frequency ranges presents advantageous ranges in relation to the cleaning efficiency of the vibrations.
  • said batch mixer further comprises vibration dampers arranged between said batch mixer and the underlying ground.
  • said mixer unit drive comprises speed regulating means.
  • Providing the mixer unit drive with speed regulating means is advantageous in that it hereby is possible to increase the rotational speed of the mixing means before, after or during at least parts of the mixing means are vibrated to hereby further increase the efficiency of the vibrator.
  • said speed regulating means comprises a frequency converter.
  • Using a frequency converter is a simple and inexpensive way to control the rotational speed of the mixing means.
  • said parts of said mixing means includes mixing arms and mixing shovels.
  • the mixing arms and the mixing shovels are formed with a relatively complex geometrical shape e.g. compared to the large even surfaces of the mixing pan and the risk of face mix sticking to the mixing arms and the mixing shovels is therefore particularly high.
  • the complex shapes make it relatively difficult to clean the mixing arms and the mixing shovels by conventional cleaning methods and it is therefore particularly advantageous to clean the mixing arms and the mixing shovels by means of vibrations from a vibrator.
  • said mixing arms are tilted in relation to a vertical plane.
  • said mixing pan is stationary and two or more suspension arms are extending between said mixing pan and said mixing unit hereby suspending said mixing unit above said mixing pan.
  • Making the mixing pan stationary is advantageous in that it is much easier to mount and power a vibrator if it is fixed on a stationary mixing pan. Furthermore, by suspending the mixing unit above the mixing pan by means of suspension arms extending between the mixing pan and the mixing unit it is ensured that the mixing pan and the mixing unit are firmly connected so that vibrations generated by a vibrator attached to one part is efficiently transferred to the other part, hereby increasing the efficiency of the vibrator.
  • the invention further provides for a method for cleaning a batch mixer.
  • the method comprises the steps of:
  • the mixing means are difficult and time consuming to clean by conventional cleaning methods and since the quality of face mix is particularly sensitive to lumps of hardened material in the mix it is particularly advantageous to clean the mixing means of a batch mixer by means of vibrations.
  • said method further comprises the step of feeding aggregate into said mixing pan while or before initiating said vibrating.
  • Feeding aggregate into the mixing pan so that at least parts of the mixing means is submerged in the aggregate while or before the vibrations are stated is advantageous in that the friction of the aggregate will further increase the efficiency of the vibrations in relation to cleaning the mixing means. Furthermore, feeding aggregate into the mixing pan is advantageous, in that once the leftover material has been loosened from the cleaning means, it can be mixed into the aggregate, which will prevent it from hardening and thereby also prevent it from contaminating the next face mix batch.
  • said mixing means are rotating while said vibrator is vibrating said parts of said mixing means.
  • Rotating the mixing means while vibrating them is advantageous in that the centrifugal force will amplify the effect of the vibrations hereby further increasing the cleaning effect.
  • said face mix comprises colouring means.
  • said vibrations are at least also being initiated while said face mix is being emptied out of said mixing pan.
  • vibrations while the face mix is being emptied out of the mixing pan is advantageous in that the vibrations hereby can also help to empty the mixer faster and thereby increase its capacity. Furthermore, by stating the vibrations while the face mix is being emptied out of the mixing pan it is ensured that the loosened material leaves the mixer with the rest of the face mix hereby reducing the risk of leaving material behind which could possibly contaminate the next batch of face mix.
  • said method is a method for cleaning a batch mixer according to any of the previous mentioned embodiments of batch mixers.
  • Fig. 1 illustrates a cross section through the middle of a prior art batch mixer 1, as seen from the front.
  • a batch mixer 1 comprise a mixer unit 5 including mixing means 7 for mixing the ingredients placed in a mixing pan 2.
  • the mixer unit 5 is suspended above a mixing pan 2 but in another embodiment the mixer unit 5 could be placed in the mixing pan 2 e.g. placed in the centre of the pan 2 and e.g. supported on the bottom face of the pan 2.
  • the mixing pan 2 is stationary but in another embodiment of the invention the pan 2 could also be rotating.
  • the rotational axes 16, 17 of the mixer unit 5 and the centre axis of the mixing pan 2 are all vertical but in another embodiment of the invention one or more of these axis could be arrange tilted in relation to vertical. I.e. in an embodiment all these axis 16, 17 could be tilted e.g. 20° in relation to vertical e.g. to ensure that gravity will pull the mixed face mix towards a discharge opening 3 arranged at the lower end of the mixing pan 2.
  • the mixing means 7 usually comprises one or more mixing stars 15 extending down into the mixing pan 2 and each of the mixing stars 15 are rotated around a substantially vertical centre axis 16 of each star 15. In this embodiment all the centre axes 16 of all the mixing stars 15 are also rotate around a centre axis 17 of the mixer unit 5.
  • This mixing means design entails that the outer periphery of the mixing stars 15 at the outer edge of the mixing pan 2 is rotating with the direction of the rotation of all the stars 15 around the mixer unit's center axis 17 and the inner periphery of the mixing stars 15 is rotating against the direction of the rotation of all the stars 15 around the mixer unit's center axis 17.
  • the mixer unit 5 is usually coaxially arranged in a cylindrical mixing pan 2 the centre axis 17 of the mixer unit 5 is usually also coaxial with the centre axis of the mixing pan 2.
  • the mixer unit 5 only comprises two mixing stars 15 and they are both rotated in the same direction at the same speed but in another embodiment one or more of the stars 15 could rotate in an opposite direction and/or one or more of the mixing stars 15 could rotate at a different speed.
  • each mixing star 15 can be designed in a multitude of ways but in this embodiment each mixing star 15 comprises a number of mixing arms 19 extending down towards the bottom 4 of the mixing pan 2.
  • the bottom end of each arm 19 is provided with a mixing shovel 20 designed to lift the material in the mixing pan 2 of the bottom 4 of the pan 2 and mix it around.
  • the mixing means 7 could comprise mixing sticks, mixing paddles, mixing chains, whisks or any other devices or means or any combination hereof suitable for mixing face mix or face mix ingredients in a mixing pan 2.
  • the mixer unit 5 of a batch mixer 1 can also comprises one or more side scrapers 18.
  • the side scrapers 18 only rotate around the centre axis 17 of the mixing unit to scrape the side 21 and the corner 22 between the side 21 and the bottom 4 of the mixing pan 2 and deliver the scraped-off material in front of a rotating mixing star 15 so that the material at the sides 21 of the pan 2 can also be thoroughly mixed into the batch.
  • a mixer unit drive 6 which in this embodiment comprises a centrally arranged motor 23 - which in this case is electrical - connected to a gear arrangement 24 - which in this case is not illustrated in any details.
  • Different parts of the gear 24 is in turn connected to the mixing stars 15, the side scrapers 18 and possibly other mixing devices so that the direction and speed of the motion of the mixing means 7 is synchronized by the gear 24 and controlled by the gear 24 and the motor 23.
  • the mixer unit 5 could be formed differently i.e. it could comprise more than one motor 23, it could comprise none or more than one gear arrangement 24, each mixing star could be provided with their own individual gear 24 and motor 23 or the mixing means 7 could be driven by another power source such as a combustion engine, a hydraulic or pneumatic motor or the mixing means 7 could be driven by drive means arranged externally to the batch mixer 1.
  • the mixing pan 2 is formed with vertical cylindrical sides 21 but in another embodiment of the invention it would be feasible that the mixing pan 2 was shaped differently such as square, rectangular, oval or other and the sides walls could be formed other than vertical such as sloping or none-linear.
  • the mixing pan 2 and the mixer unit 5 are formed as two separate parts. However, they are connected by means of a number of suspension arms 8 extending between the mixer unit 5 and the upper edge 12 of the mixing pan 2.
  • the main function of the suspension arms 8 is to carry and suspend the mixer unit 5 above the stationary mixing pan 2.
  • the suspension arms 8 also have to transfer a substantial torque from the mixer unit 5 to the mixing pan 2.
  • the mixer unit 5 could be supported inside the mixing pan 2 or it could comprise its own separate support structure or the mixing pan 2 and the mixer unit 5 could be supported separately by a common support structure.
  • Fig. 2 illustrates the batch mixer 1 shown in fig. 1 , as seen from the top.
  • the mixer unit 5 is suspended above the mixing pan 2 by means of three substantially evenly spaced suspension arms 8.
  • the mixer 1 could comprise two, three, five, six or more suspension arms 8 and the suspension arms 8 could be spaced differently.
  • a batch mixer 1 is provided with one or more discharge openings 3 at the bottom 4 of the mixing pan 2 i.e. in the bottom face or in the sides 21 at the bottom 4 of the mixing pan 2.
  • the mixing pan 2 is provided with only one discharge opening 3 but in another embodiment the pan 2 could comprise two, three or more discharge openings 3.
  • the discharge opening 3 is provided with a sliding door so that when the mixture - such as face mix - in the mixing pan 2 has been mixed sufficiently, the door is opened and the face mix is emptied out of the mixer 1 through the discharge opening 3.
  • the face mix is now ready for use and could be emptied directly down into a waiting concrete lorry or it could be emptied down onto some kind of conveyor system which will transport the face mix to another location e.g. in a paving stone manufacturing site or into a face mix chute, a face mix holding hopper or a similar device.
  • the openings between the suspension arms 8 are in this embodiment of the invention provided with doors 14 that can be closed during the face mix mixing process.
  • the doors 14 would be provided with safety switches (not shown) so that the mixer 1 can only operate if all the doors 14 are closed.
  • the mixing means 7 can be seen through the other openings but in a fully functional embodiment of a batch mixer 1 all the openings would be fully covered by some sort of covering.
  • one door 14 is provided with a cement inlet 9 and another door 14 is provided with a water inlet 10 and these and/or further inlets and/or outlets could be provided in these or other doors 14 or elsewhere in the mixer 1.
  • Fig. 3 illustrates a cross section through the middle of a batch mixer 1 comprising a vibrator 13, as seen from the front.
  • the mixer 1 is provided with a vibrator 13 connected to the bottom structure 11 of the mixing pan 2.
  • the vibrator 13 could be connected to the mixer 1 elsewhere such as directly to the bottom 4 of the mixing pan 2, to the side 21 of the mixing pan 2, to the mixer unit 5, to parts of the mixer unit 5 such as to the mixing means 7 or several vibrators 13 could be connected to one or more of these parts of the mixer 1.
  • mixer 1 is placed on a number of vibration dampers 25 to prevent that the vibrations generated by the vibrator 13 spreads to the underlying ground or to at least reduce the spread of the vibrations downwards.
  • the vibration dampers 25 could be placed elsewhere e.g. if the vibrator 13 was located on the mixer unit 5 the vibration dampers 25 could be placed between the mixer unit 5 and the mixing pan 2, if the vibration dampers 25 was connected directly on the mixing pan 2 they could be placed between the pan 2 and the bottom structure 11 or the vibration dampers 25 could be placed anywhere else which would enable that they could prevent vibrations from spreading to the underlying ground or to parts of the mixer 1 where the vibrations was unwanted.
  • the mixing arms 19 extends backwards in relation to the rotational direction of the mixing star 15 i.e. the mixing arms 19 are tilted in relation to a vertical plane so that vertical vibrations spreading to the mixing means 7 will make the mixing arms 19 oscillate up and down more.
  • the mixing arms 19 could be formed more or less vertical.
  • the mixing star 15 is only provided with one mixing arm 19 but in a preferred embodiment the mixing star 15 would be provided with more mixing arms 19 such as two, three, four or more.
  • a batch of face mix can be mixed in the batch mixer 1 in a number of ways but in this embodiment only aggregate is added to the mixing pan 2 at first after which the mixing means 7 starts rotating to "grind" off face mix left on the mixing means 7 from the previous batch.
  • the electrical motor 23 of the mixer unit 5 is powered through speed regulating means in the form of a frequency converter and during the cleaning period the rotational speed of the mixing means 7 could therefore be increased to e.g. 80 Hz to hurl leftover material off the mixing means 7.
  • the vibrator 13 is vibrating at least some of the time during this cleaning process so that mixing means 7 such as side scrapers 18, mixing arms 19 and mixing shovels 20 starts oscillating whereby leftover or hardened material is shaken of the mixing means 7.
  • the vibrator 13 operates with relatively large amplitude at between 300-1,900 rotations per minute equivalent to 300-1,900 Hz but in another embodiment the vibration frequency could be higher or lower.
  • the rotational speed of the mixing means 7 could be reduced and the vibrator 13 is stopped after which the remaining ingredients of the face mix - such as cement, colouring means, water, chemical additives or other - is added in the mixing pan 2 so that the face mix can be mixed by the mixing means 7.
  • the remaining ingredients of the face mix - such as cement, colouring means, water, chemical additives or other - is added in the mixing pan 2 so that the face mix can be mixed by the mixing means 7.
  • ingredients could be added in a different order, one or more of the ingredients could be omitted - except for cement - or further ingredients could be added.
  • the face mix is emptied out of the mixing pan 2 through the discharge opening 3.
  • the vibrator 13 could be started again primarily to shake fresh face mix off the mixing means 7 but e.g. also to aid the emptying process and speed it up.
  • the rotational speed of the mixing means 7 could also be increase during the emptying phase.
  • Fig. 4 illustrates an embodiment of a bottom structure 11 for a batch mixer 1, as seen in perspective.
  • the bottom structure 11 is formed as a cross which will be attached to the bottom 4 of the mixing pan 2 and hereby reinforcing the pan 2.
  • the centre of the cross is provided with a plate onto which the vibrator 13 can be attached. Once the vibrator 13 is operating the vibrations will spread through the side 21 of the mixing pan 2 to the mixing unit 5 and down to the mixing means 7.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
EP12151919.3A 2012-01-20 2012-01-20 Mélangeur de charge pour mélanger un mélange de parement et procédé pour nettoyer ce mélangeur de charge Withdrawn EP2617543A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12151919.3A EP2617543A1 (fr) 2012-01-20 2012-01-20 Mélangeur de charge pour mélanger un mélange de parement et procédé pour nettoyer ce mélangeur de charge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12151919.3A EP2617543A1 (fr) 2012-01-20 2012-01-20 Mélangeur de charge pour mélanger un mélange de parement et procédé pour nettoyer ce mélangeur de charge

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EP2617543A1 true EP2617543A1 (fr) 2013-07-24

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105415498A (zh) * 2015-12-02 2016-03-23 李柳晶 一种小型振动混凝土搅拌机
CN105583954A (zh) * 2016-01-08 2016-05-18 长安大学 一种基于双频振动的连续式二次搅拌机
CN106393426A (zh) * 2016-12-09 2017-02-15 重庆市万盛区万兴建筑材料有限公司 一种用于砖石粉料搅拌的搅拌机
EP3213812A1 (fr) * 2016-03-01 2017-09-06 Staring Maskinfabrik A/S Machine de mélange
CN107932734A (zh) * 2017-12-05 2018-04-20 齐鲁理工学院 一种组合式的多功能土木工程用混合配料装置
CN108044797A (zh) * 2017-12-12 2018-05-18 新昌县城关宾立机械厂 一种建筑施工用混凝土搅拌机
CN108407084A (zh) * 2018-01-20 2018-08-17 广州拓讯安防科技有限公司 一种改进型建筑施工装置
CN109877968A (zh) * 2019-03-29 2019-06-14 安徽阜阳富龙建筑材料有限责任公司 一种利用电石渣替代石灰生产加气混凝土砌块的生产装置
CN109968530A (zh) * 2019-03-20 2019-07-05 钟志刚 一种建筑工程用水泥搅拌铺制设备
CN111975996A (zh) * 2020-08-19 2020-11-24 安徽伟基基础工程有限公司 一种地基建筑施工用水泥搅拌装置
CN112405848A (zh) * 2020-11-17 2021-02-26 源丰建设有限公司 一种混凝土搅拌设备
CN112677323A (zh) * 2020-12-22 2021-04-20 山东利鑫新材料集团有限公司 一种环保预拌砂浆生产设备
CN113211629A (zh) * 2020-11-02 2021-08-06 邓莉红 一种沥青混凝土混合料生产方法
CN113635445A (zh) * 2020-05-11 2021-11-12 广东博智林机器人有限公司 物料搅拌装置及填缝机器人

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DE19755239A1 (de) * 1997-12-12 1999-06-17 Harald Kniele Verfahren und Vorrichtung zur Verhinderung von Mischgutanbackungen an den Rührarmen von Mischern
DE102008060588A1 (de) * 2007-12-07 2009-06-10 Pemat Mischtechnik Gmbh Mischer

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
DE1242495B (de) * 1963-06-21 1967-06-15 Heinz Schmalz Dr Ing Verfahren zum Herstellen von Beton und Moertel und Vorrichtung zur Durchfuehrung des Verfahrens
DE3608201A1 (de) * 1986-03-12 1987-09-17 Walter Stahl Mischer
DE4344178C1 (de) * 1993-12-23 1995-02-02 Walter Stahl Mischer
DE19755239A1 (de) * 1997-12-12 1999-06-17 Harald Kniele Verfahren und Vorrichtung zur Verhinderung von Mischgutanbackungen an den Rührarmen von Mischern
DE102008060588A1 (de) * 2007-12-07 2009-06-10 Pemat Mischtechnik Gmbh Mischer

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105415498A (zh) * 2015-12-02 2016-03-23 李柳晶 一种小型振动混凝土搅拌机
CN105415498B (zh) * 2015-12-02 2017-11-17 李柳晶 一种小型振动混凝土搅拌机
CN105583954A (zh) * 2016-01-08 2016-05-18 长安大学 一种基于双频振动的连续式二次搅拌机
CN105583954B (zh) * 2016-01-08 2018-01-12 长安大学 一种基于双频振动的连续式二次搅拌机
EP3213812A1 (fr) * 2016-03-01 2017-09-06 Staring Maskinfabrik A/S Machine de mélange
CN106393426A (zh) * 2016-12-09 2017-02-15 重庆市万盛区万兴建筑材料有限公司 一种用于砖石粉料搅拌的搅拌机
CN107932734A (zh) * 2017-12-05 2018-04-20 齐鲁理工学院 一种组合式的多功能土木工程用混合配料装置
CN108044797A (zh) * 2017-12-12 2018-05-18 新昌县城关宾立机械厂 一种建筑施工用混凝土搅拌机
CN108407084A (zh) * 2018-01-20 2018-08-17 广州拓讯安防科技有限公司 一种改进型建筑施工装置
CN109968530A (zh) * 2019-03-20 2019-07-05 钟志刚 一种建筑工程用水泥搅拌铺制设备
CN109877968A (zh) * 2019-03-29 2019-06-14 安徽阜阳富龙建筑材料有限责任公司 一种利用电石渣替代石灰生产加气混凝土砌块的生产装置
CN113635445A (zh) * 2020-05-11 2021-11-12 广东博智林机器人有限公司 物料搅拌装置及填缝机器人
CN111975996A (zh) * 2020-08-19 2020-11-24 安徽伟基基础工程有限公司 一种地基建筑施工用水泥搅拌装置
CN113211629A (zh) * 2020-11-02 2021-08-06 邓莉红 一种沥青混凝土混合料生产方法
CN112405848A (zh) * 2020-11-17 2021-02-26 源丰建设有限公司 一种混凝土搅拌设备
CN112405848B (zh) * 2020-11-17 2021-12-10 源丰建设有限公司 一种混凝土搅拌设备
CN112677323A (zh) * 2020-12-22 2021-04-20 山东利鑫新材料集团有限公司 一种环保预拌砂浆生产设备

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