Cordially Welcome! Speaker: Volker Fitz, EIRICH Head Office. The EIRICH Mixing Technology Advanced Mixing Technology for Concrete

Transcription

1 Cordially Welcome! Speaker: Volker Fitz, EIRICH Head Office The EIRICH Mixing Technology Advanced Mixing Technology for Concrete cost efficient and environmentally friendly 1

2 The EIRICH management team EIRICH introduction Hubert Eirich Paul Eirich Stephan Eirich Ralf Rohmann Founded in 1863 by Gustav Eirich Family owned company - 4 th /5 th generation Development to a medium-sized enterprise Headquarter GERMANY 630 employees 2

3 Companies in the EIRICH Group employees in 11 countries on 5 continents Hardheim Moskau Chicago Lyon more than machines running worldwide Dnepropetrovsk Mumbai Beijing Jiangyin Shanghai Seoul Tokio more than 4500 mixer and plants in Middle East & Asia Sao Paulo Johannesburg more than mixers and plants sold worldwide 3

4 Start of mixer construction Development of the EIRICH mixer Mixing efficiency Videolink Videolink Ringthrough, invented 1903 by EIRICH Planetary mixer, invented 1906 by EIRICH Countercurrent EIRICH Intensive Mixer 1924 Countercurrent EIRICH Intensive Mixer with agitator 1960 Countercurrent EIRICH Intensive Mixer with inclined pan

5 EIRICH Mixing Technology Advantages of EIRICH Intensive Mixing Technology for concrete batching plants Better distribution of fine components Saving of cement / admixtures / chemicals Constant high concrete quality High reproducibility Lower concrete product reject rates Lower maintenance & wear costs Perfect concrete surfaces Significant less finishing work for precast parts 5

6 Working principles in comparison conventional mixers High number of mixing tools higher wear and plenty of room for material accumulations Severe wear This often requires ceramic linings Disadvantage: Costly and lengthy stoppages for renewing the lining 6

7 Working principle EIRICH mixer Mixer feeding Direct feeding into the rotating mixing pan, avoiding any material caking on mixing arms 7

8 Working principle EIRICH mixer Star-type rotor Power input Energy input with EIRICH intensive mixers can be controlled in a wide range through the speed, direction and design of the mixing tool Conventional mixers operates in this range only Pin type rotor rotating clockwise Pin type rotor rotating counter clockwise Star / Drum type rotor Drum-type rotor Pin-type rotor 8

9 Advantages of EIRICH preparation solutions Using EIRICH mixing solutions Conventional mixers operates in this range only Optimum speed High tool speeds are optimal for modern concretes Slump flow Funnel flow time Funnel flow time [sec] Mixing tool tip speed [m/sec] Leipzig Institute for Materials Research and Testing 9

10 The preparation process Definition of the mixing process Distribution Distributive mixing Uniform distribution of all particles Low shear forces (for grain, water etc.) Dispersion Dispersive mixing Disaglomeration and Distribution of particle lumps High shear forces (for fines, microsilica, chemical admixtures) Source: wikipedia.org/wiki/compoundierung 10

11 Advantages of EIRICH preparation solutions Comparison of mixing systems EIRICH mixers produce a higher quality of mix research results by Mr. Fons Rikken 11

12 Advantages of EIRICH preparation solutions Fluctuations in color intensity Horizontal shaft mixer units Fluctuation of 34 Planatary pan mixer units Fluctuation of 32 EIRICH Intensive Mixer units Fluctuation of Shaft mixer Planatary EIRICH Bayer AG, 3 paving stones, each with 2 measuring points. Compared with a reference stone with the value 100 EIRICH mixers produce a better distribution of pigments Institut für Fertigteiltechnik und Fertigbau Weimar e. V. Untersuchungen zur Mischgüte von Vorsatzbetonmischern

13 Advantages of EIRICH preparation solutions Customer test report from Indonesia Eirich Mixer Twin Shaft Mixer Test made with several customers in Indonesia showing similar results. 13

14 Advantages of EIRICH preparation solutions Customer test report from Indonesia 14

15 Advantages of EIRICH preparation solutions Customer test report from Indonesia 15

16 Advantages of EIRICH preparation solutions Typical precast plant 400 m³ per day m³ per year (300 days) Assuming cement savings of only 10% results in: approx. 50 kg less cement per m³ concrete means total cement savings of t / year with a cement price of 1 Million Rupiah per ton the saving in cement costs per year is worth 6 Billion Rupiah / year ( USD / year) (kehutungan Rp 6 Milliar per tahun) 16

17 Advantages of EIRICH preparation solutions The difference in price for the EIRICH mixing solutions pay back within months! This calculation does not take into account the additional costs of reject losses, disposing of the rejects and supplying replacement products. 17

18 Innovations Testing Developing Optimizing at EIRICH test center 18

19 Innovations Concrete Industry in Transition New concrete materials Self-compacting concrete (SCC): SCC for short, compaction without vibration, using suitable recipes or admixtures High-performance and ultrahigh-performance concrete (HPC & UHPC): HPC / UHPC for short, cement with high compressive strength, high-performance liquefier, possibly fine additives (microsilica). Often very fluid, little maximum-size grain Translucent concrete: Optical fibers are added (3-5% glass fiber) to make the concrete translucent Self-cleaning concrete: Superhydrophobic or superhydrophilic (similar to lotus effect), through adding admixtures to the mixing process. Fiber, Polymere & Colour concrete 19

20 Innovations Concrete Industry in Transition Normal concrete (f ck,cube 67 N/mm²) High-strength concrete (67 N/mm² f ck,cube 115 N/mm²) Ultra high-strength concrete (f ck,cube 115 N/mm²) Practice: f ck,cube = N/mm² Compressive strength[n/mm²] Development compressive strength of concrete Ultra high-strength concrete High-strength concrete Normal concrete 1,0 0,8 0,6 0,4 0,2 0 Laboratory: f ck,cube 800 N/mm² Equivalent water cement value[-] 20

21 A look at the preparation solutions From 1 liter to 12,000 liters to liters R liters RV to liters D liters RV24 21

22 A look at the preparation solutions Plant engineering Raw Material Transportation and Storage Dosing & Weighing Mixing & Distribution Plant control system Revamping of existing plants (mixer exchange) typical EIRICH in-line plant for concrete batching typical EIRICH tower plant for concrete batching 22

23 A look at the preparation solutions Plant engineering Manufacturer of high-grade prefabricated concrete elements 23

24 Concrete References 24

25 Extract of concrete references 25

26 Extract of concrete references 26

27 Research & Development Partners 27

28 The preparation process Applications Various consistencies can be treated in one and the same mixer Concrete for housing elements Concrete for structure elements Concrete for drainage channels Railroad sleepers concrete Fiber & Polymere concrete Concrete for roofing tiles Coloured facing concrete Concrete with special properties High performance concrete & UHPC High-performance fiber concrete High-performance lightweight concrete Self-compacting concrete Suspension concrete Foamed concrete Ready-Mix concrete 28

29 Advantages of EIRICH preparation solutions Summary of EIRICH mixing process advantages Much higher homogeneity of the mixture due to better material flow with rotating mixing pan Through perfect dispersion, 5-15% of cement can be saved. High mixing qualities obtained in shortest mixing time and higher throughput rates Quickly obtained stable moisture measurement Water distributed more effectively Consumption of binders, pigments and chemicals can usually be reduced by up to 15% Significant lower wear and maintenance costs and therefore higher availability of the plant Reject rates much lower, particularly for visible surfaces errors Only 1 (2) mixing tool(s) for mixer sizes up to 4,000 liters 29

30 EIRICH Mixing Technology In case of any question, please feel free to contact us at any time Representative: Mr. Volker Fitz phone: mobile:

31 Worldcup Soccer Stadium, Johannesburg Thank you for your attention! Facade panels mixed by EIRICH! 31