Zellenradschleusen / Rotary Valves / Válvulas Rotativas

Transcription

1 Zellenradschleusen / Rotary Valves / Válvulas Rotativas Zellenradschleuse Typ SRVS-Basic Austrags- und Dosierschleuse, Standard-Version nach ATEX RL 94/9/EG für Zone 20 innen, Zone 21 außen, mit Baumusterprüfung Rotary valve Type SRVS-Basic for discharging and dosing, standard-version acc. ATEX directive 94/9/EC for zone 20 interior, zone 21 exterior, with prototype technical-release testing Válvula rotativa Tipo SRVS-Basic para descarga y dosificación, version standard según directiva ATEX 94/9/CE para zona 20 interior, zona 21 exterior, con modelo certificado por organismo notificado Zellenradschleuse Typ SRVP-Schutzsystem Austrags- und Dosierschleuse, Schutzsystem Kategorie 1 nach ATEX RL 94/9/EG für staubexplosionsgefährdete Produkte, mit Baumusterprüfung Protection system ATEX 94/9/EC Rotary valve Type SRVP-Protection system for discharging and dosing, protection system category 1 acc. ATEX directive 94/9/EC for products with dust explosion risk, with prototype technical-release testing Válvula rotativa Tipo SRVP- Sistema de protección para descarga y dosificación, sistema protección categoria 1 según directiva ATEX 94/9/CE para productos pulverulentos con riesgo de explosion, con modelo certificado por organismo notificado Zellenradschleuse Typ SRVC-Clean Austrags- und Dosierschleuse, leicht zerlegbar, Rotor auf Antriebswelle aufgesteckt. Nach ATEX RL 94/9/EG für Zone 20 innen, Zone 21 außen, mit Baumusterprüfung Rotary Valve Type SRVC-Clean for discharging and dosing, easy dismantling, rotor put on motor shaft. According ATEX directive 94/9/EC for zone 20 interior, zone 21 exterior, with prototype technical-release testing Valvlula rotativa Tipo SRVC-Clean para descarga y dosificación, facilmente desmontable, rotor enchufable sobre el eje del acionamiento. Según ATEX 94/9/CE para zona 20 interior, Zone 21 exterior, con modelo certificado por organismo notificado Zellenradschleuse Typ SRVS-Hygienic und SRVP-Hygienic Austrags- und Dosierschleuse aus Edelstahl, Hygienic-Ausführung nach HACCP, GMP- /FDA-konform, Innenflächen poliert, gerundete Rotortaschen. Nach ATEX RL 94/9/EG für Zone 20 innen, Zone 21 außen, mit Baumusterprüfung, auch als Schutzsystem Rotary valve Type SRVS-Hygienic and SRVP-Hygienic for discharging and dosing in stainless steel, Hygienic-version acc. HACCP, conform to GMP/FDA, interior surfaces polished, rounded rotor recess. According ATEX directive 94/9/EC for zone 20 interior, zone 21 exterior with prototype technical-release testing, also as protective system Valvual rotativatipo SRVS- Hygienic y SRVP-Hygienic para descarga y dosificación, fabricado en acero inoxidable, version hygienic según directiva HACCP, conforme GMP-/FDA, superficie interior pulida, alveolos redondeados. Según ATEX 94/9/CE para zona 20 interior, zona 21 exterior, con modelo certificado por organismo notificado, también como sistema de protección info@solids-service.de

2 Type SRVS-Basic Rotary feeder for discharging and dosing, standard-version, acc. ATEX directive 94/9/EC for zone 20 interior, zone 21 exterior, with type examination test Advantages: robust and low-wear cost-efficiency and low maintenance space saving gas tight outwards Appropriate for application acc. ATEX directive 94/9/EC in zone 20 interior, zone 21 exterior Reliability for operator due to type examination test with declaration of conformity Identification: II 1/2 D info@solids-service.de

3 Type SRVS-Basic Option: Sealing air connection Exterior bearing, free from play and robust, low maintenance Option: Extraction device Type Ø In-/Outlet mm Height mm Flow rate l/rotation Material housing SRVS ,5-5 Iron casting SRVS Special steel SRVS casting Aluminium casting Material rotor Mild steel Stainless steel Aluminium

4 C Components and protective systems acc. ATEX directive 94/9/EC Constructive explosion protection Pressure shock resistant filter Explosion pressure relief without the emission of flame Pressure proof vessel, possibly with a reduced explosion pressure Explosion pressure sensor Autonomous control electronics Protective system- Rotary valve Category 1 acc. ATEX directive 94/9/EC info@solids-service.de

5 Type SRVP-Protective System Rotary feeder for discharging and dosing, as protective system acc. ATEX for products with dust explosion risk Advantages: Pressure shock resistant 13 bar g and flame propagation proof, Protective system category 1 acc. ATEX-directive 94/9/EC, Dust explosion category St2, zone 20 interior, dust explosion risk permanent, long-term, oftentimes, zone 21 exterior, with type examination test by notified body Identification: II 1/2 D info@solids-service.de

6 Type SRVP-Protective System Pressure shock resistant housing, 13 bar g, with water pressure testing Rotor is pressure shock resistant and flame propagation proof, flame and pressure shock are stopped by the rotary valve Exterior bearing, free from play and robust, low maintenance Option: Sealing air connection Shaft seal Type Ø In-/Outlet mm Height mm Flow rate ca. l/rotation Material housing SRVP ,5 Iron casting SRVP Special steel SRVP casting Material rotor Mild steel Stainless steel Mail info@solids-service.de

7 Type SRVC-Clean Rotary feeder for discharging and dosing, easy dismantling, rotor put on motor shaft. Foodstuffs- and Fine chemistry- design, according ATEX directive 94/9/EC for zone 20 interior, zone 21 exterior. Dust explosible atmosphere permanent, long-run, oftentimes. With type examination test by notified body. Identification: II 1/2 D info@solids-service.de

8 Type SRVC-Clean Advantages: Suitable for foodstuffs, easy dismantling, easy cleaning Easy to maintain robust and low-wear cost-efficiency and low maintenance due to simple assembling space saving gas tight outwards Type Ø In-/Outlet mm Height mm Flow rate l/rotation Material housing SRVC ,5-5 Iron casting SRVC Special steel SRVC casting Aluminium casting Material rotor Mild steel Stainless steel Aluminium

9 Type SRVP-Hygienic Hygienic Design Rotary valve for discharge and feeding, suitable for feeding in pressure- or suction conveying lines, hygienicversion acc. EHEDG-Guidelines with certificate type EL-Class II, as protective system acc. ATEX for products with dust explosion risk Advantages: Fulfills GMP- / FDA-requirements, DIN EN (food machines) and DIN EN ISO (hygienic requirements) Easy dismantling, easy cleaning Simple and time-saving disassembly and assembly of the rotor without adjustment of the clearance between rotor and housing Pressure shock resistant 13 bar g and flame propagation proof, protective system category 1 acc. ATEX-directive 94/9/EC, zone 20 interior, zone 21 exterior, with type examination test by notified body Suitable for wet cleaning in assembled condition (CIP) with following inspection and secondary cleaning, if necessary Mail info@solids-service.de O:\SST-Marketing\Web Site SST\02_Mech_Fördern_Schnecken_ZRS_RRS\03_Zellenradschleusen\NEU _Prod.beschreibungen Schleusen\englisch\HP_SRVP-Hygienic_engl_ doc

10 Type SRVP-Hygienic Hygienic Design Rotor with rounded chambers Exterior bearing, free of clearance and robust, low maintenance Bearing bracket extensible Rotor with extensible bearing bracket Hygienic characteristics: In contact with product surface quality acc. 0,8µm Weldings free of gaps and scattered ( 0,8µm) Corners and edges with big radius Easy to dismantle and to clean Mail info@solids-service.de O:\SST-Marketing\Web Site SST\02_Mech_Fördern_Schnecken_ZRS_RRS\03_Zellenradschleusen\NEU _Prod.beschreibungen Schleusen\englisch\HP_SRVP-Hygienic_engl_ doc

11 Type SRVP-Hygienic Hygienic Design seamless connection at the inlet and outlet axial free of clearance rotor bearing by use of suitable ball bearings and axial fixing of the bearing bushing axial centering device with adjustable screw socket and fixed stop fixing of the rotor with only one bolt double centering of the shaft end in the bearing bushing Mail O:\SST-Marketing\Web Site SST\02_Mech_Fördern_Schnecken_ZRS_RRS\03_Zellenradschleusen\NEU _Prod.beschreibungen Schleusen\englisch\HP_SRVP-Hygienic_engl_ doc

12 Type SRVP-Hygienic Hygienic Design double bearing of the rotor shaft in the bearing bushing advantage: exact radial fixing and absorbing of high bending moments due to pressure differences purge gas entry bearing of the rotor in the shield with bearing bushings advantage: when pulling the rotor out the sealings remain intact, because the bearing bushing stay in the shield Sealing of the bearing and the rotor shaft against the product zone by use of a co-rotating seal disc and a circular flushing chamber with purge air / gas advantage: the area of the bearing need not to be cleaned during COP-cleaning the purge air / gas prevents the entry of the cleaning fluid into the area of the bearing Type Ø In-/Outlet mm Height mm Flow rate l/rotation Material housing SRVP-Hygienc ,5 Special steel SRVP-Hygienc casting SRVP-Hygienc Material rotor Stainless steel Mail info@solids-service.de O:\SST-Marketing\Web Site SST\02_Mech_Fördern_Schnecken_ZRS_RRS\03_Zellenradschleusen\NEU _Prod.beschreibungen Schleusen\englisch\HP_SRVP-Hygienic_engl_ doc

13 Type SRVS-Hygienic Hygienic Design Rotary valve for discharge and feeding, suitable for feeding in pressure- or suction conveying lines, hygienicversion acc. EHEDG-Guidelines with certificate type EL-Class II Advantages: Fulfills GMP- / FDA-requirements, DIN EN (food machines) and DIN EN ISO (hygienic requirements) Easy dismantling, easy cleaning Simple and time-saving disassembly and assembly of the rotor without adjustment of the clearance between rotor and housing Acc. ATEX-directive 94/9/EC, zone 20 interior, zone 21 exterior with type examination test by a notified body Suitable for wet cleaning in assembled condition (CIP) with following inspection and secondary cleaning, if necessary Mail info@solids-service.de O:\SST-Marketing\Web Site SST\02_Mech_Fördern_Schnecken_ZRS_RRS\03_Zellenradschleusen\NEU _Prod.beschreibungen Schleusen\englisch\HP_SRVS-Hygienic_engl_ doc

14 Type SRVS-Hygienic Hygienic Design Rotor with rounded chambers Exterior bearing, free of clearance and robust, low maintenance Bearing bracket extensible Rotor with extensible bearing bracket Hygienic characteristics: In contact with product surface quality acc. 0,8µm Weldings free of gaps and scattered ( 0,8µm) Corners and edges with big radius Easy to dismantle and to clean Mail info@solids-service.de O:\SST-Marketing\Web Site SST\02_Mech_Fördern_Schnecken_ZRS_RRS\03_Zellenradschleusen\NEU _Prod.beschreibungen Schleusen\englisch\HP_SRVS-Hygienic_engl_ doc

15 Type SRVS-Hygienic Hygienic Design seamless connection at the inlet and outlet axial free of clearance rotor bearing by use of suitable ball bearings and axial fixing of the bearing bushing axial centering device with adjustable screw socket and fixed stop fixing of the rotor with only one bolt double centering of the shaft end in the bearing bushing Mail O:\SST-Marketing\Web Site SST\02_Mech_Fördern_Schnecken_ZRS_RRS\03_Zellenradschleusen\NEU _Prod.beschreibungen Schleusen\englisch\HP_SRVS-Hygienic_engl_ doc

16 Type SRVS-Hygienic Hygienic Design double bearing of the rotor shaft in the bearing bushing advantage: exact radial fixing and absorbing of high bending moments due to pressure differences purge gas entry bearing of the rotor in the shield with bearing bushings advantage: when pulling the rotor out the sealings remain intact, because the bearing bushing stay in the shield Sealing of the bearing and the rotor shaft against the product zone by use of a co-rotating seal disc and a circular flushing chamber with purge air / gas advantage: the area of the bearing need not to be cleaned during COP-cleaning the purge air / gas prevents the entry of the cleaning fluid into the area of the bearing Type Ø In-/Outlet mm Height mm Flow rate l/rotation Material housing SRVS-Hygienc ,2 Special steel SRVS-Hygienc casting SRVS-Hygienc Material rotor Stainless steel Mail info@solids-service.de O:\SST-Marketing\Web Site SST\02_Mech_Fördern_Schnecken_ZRS_RRS\03_Zellenradschleusen\NEU _Prod.beschreibungen Schleusen\englisch\HP_SRVS-Hygienic_engl_ doc

17 Type ZRS Discharge and metering rotary valve, for discharge of silos and/or feed into pressure or vacuum conveying pipelines ; even for dust explosion hazardous products Advantages: Sturdy and less wear Cost-effective and low maintenance due to simple assembly Space-saving Gas-tight from outside Protection against spreading of dust explosions and effective flame trap Safety for operators, with a DMT certificate info@solids-service.de

18 Type ZRS Functions and operating modes of a rotary valve Generally a rotary valve has two basic functions: Discharging and metering. Both the functions have an additional task to establish an air lock point between two sections of the system. Absolute air lock is however not possible at the given pressure difference. The flow of the leakage air can only be minimised. Discharge The basic function of pure discharging is executed by the well-known basic rotary valve: In the housing the rotor is revolving by constant speed. Due to gravity the product comes out from the container or the hopper from the top and falls in the chambers of the rotor. Due to the revolving rotor the product is transported to the discharge opening, from where it again moves down by gravity. The rotary valve itself does not affect the flow capacity of bulk solids. It depends on the chamber volume, filling ratio and rotation speed. Metering The rotary valve for metering is characterised by a variable speed, e.g. using a variable-pitch geared motor or a frequency converter drive. The metering is purely volumetric in such a case: A specific volumetric flow per time unit is set as the desired value in dm ³/s or m³/h. It is however not measured so that there is an undefined deviation between the desired and actual values. The mass flow capacity is not measured and regulated, and therefore the term, "metering" is actually incorrect in the strict sense; a constant and reproducible volumetric flow can however be set. The condition is, that a) the density of bulk solids is always constant, b) the rotor is always fed with the same filling ratio. This can be achieved, e.g. using an agitator or a pneumatic discharge aid in the pre-hopper over the rotary valve, c) the chambers are emptied completely. info@solids-service.de

19 Type ZRS Volumetric metering using solids rotary valves Standard rotary valve, type ZRS: Housing with inlet and outlet Horizontal rotor with chambers (see rotor versions) Filling the chambers at the inlet Downward transport by rotation Emptying due to gravity; free discharge at the outlet Setting the volumetric flow by changing the speed Sizes from entry- 150 to 500 x 1000 mm Capacity range: from 100 dm³/h to 200 m³/h Conditions: The maximum particle size must be determined depending on the pressure difference and other product properties. Most important rotor versions: a) Basic version: - Fixed bars - For non-wearing products b) Replaceable, adjustable sealing strips - made of elastomer or cutting strip - for moderately wearing products c) Rounded chambers - with/without replaceable sealing strips - for slightly accumulating products - with coated chamber surface d) Towing vane made of elastomer - for granular, sticky and fibrous products info@solids-service.de

20 Type ZRS Characteristics (here as an example of a pressure-shock-resistant rotary valve): Cast housing; with pressure test on request pressur-shockresistant rotor Pressure-tight shaft seal Packing gland up to 200 C External bearing Rounded chambers Adjustable and replaceable rotor strips Solid rotor design Rotor for dust explosion class ST1 Rotor for dust explosion class ST3 Optional: radial shaft sealing rings with a sealing gas connection info@solids-service.de

21 Foodstuffs version: solids Rotary Valve Type ZRS Rounded chambers Slip-on gear Complete with a leakage air collector and a blowing shoe: info@solids-service.de

22 Type ZRS Accessories: Leakage air collector for optimised diversion of leakage air from the pressure conveying by the solids rotary valve; inclusive of the granulate inlet for granular products Advantages: Space-saving Fail-safe; prevents coarse grains from clamping Cost-effective Increases the conveying capacity Product inlet Leakage air diversion Characteristics: Welded steel design; all commonly available steel and stainless steel qualities For pressure conveying Nominal widths 150 to 350 mm corresponding to the rotary valve

23 Type ZRS Blowing shoe below the metering equipment for filling a pneumatic conveying pipeline Advantages: Space-saving Fail-safe Cost-effective Can be connected to all metering equipment Product inlet Air inlet Product + conveying air Characteristics: Welded steel design; all commonly available steel and stainless steel qualities Pressure-resistant For suction and pressure conveying Conveying pipe nominal widths 50 to 150 mm info@solids-service.de

24 solids Rotary valve Type ZRS Heavy Design Discharge and dosing device, for the discharge from silos and / or entry in pressure- or vacuum conveying lines, even for high temperatures Advantages: robust, buckling resistant iron construction wear-proof temperature resistant Option: Housing inside, hard chromed Bearing shields with armoured protection by hard build-up welding, Rotor equipped with carbide metal Mail info@solids-service.de

25 solids Rotary valve Type ZRS Heavy Design Widely offset bearings, free of play and robust, low maintenance Optional: removable and adjustable rotor blades Shaft feedhrough with packing gland, optional with sealing-/ flushing air connection Attachable gear motor Robust cast metal housing Sizes: Type In-/ Outlet mm Height mm Flow rate l/rotation Material housing ZRS250/430 Ø Iron casting ZRS250x x Special steel ZRS315x x casting Material rotor Mild steel Stainless steel with wear protection Further options: Leakage air collector, granulate inlet, blowing shoe for vacuum- and pressure conveying Mail

26 solids Self Cleaning Rotary Valve Type RRS Trouble-free discharging and dosing of sticky, viscous and non-flowing bulk solids; with a forced scraper for complete emptying of the chambers Advantages: Ensures the trouble-free operation of the system when handling bulk solids having a tendency to stick, form coats and clot. Prevents expensive system standstills (e.g. cleaning) and production failures. Can be adapted to the prescribed or existing cross-section openings Can also be retrofitted if conventional rotary valves have failed info@solids-service.de

27 solids Self Cleaning Rotary Valve Type RRS Rotor Exchangeable, adjustable sealing strips Rounded chambers Scraper for complete emptying the chambers Characteristics: For poorly flowing, humid products When vapours coming up from downside Rounded chambers Forced scraper; counter-rotating with respect to the rotor; ensure complete emptying of the chambers Common drive for the rotor and the scraper using synchromesh gears External bearing Pressure-shock-resistant up to 10 bar Sizes: from 200 x 200 mm to 500 x 800 mm Capacity range: m³/h info@solids-service.de

28 solids Self Cleaning Rotary Valve Type RRS Pressure-shock-resistant self cleaning rotary valve RRS250 Self cleaning rotary valve, installed