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Producing and ordering continuous filter equipment
ProdUcing and ordering Continuous filter equipment ....
by Alex
~'elshin
O u r c o r r e s p o n d e n t p r e s e n t s t h e i n f o r m a t i o n c o n t a i n e d in a n e w c a t a l o g u e of c o n t i n u o u s liquid filters p u b l i s h e d in M o s c o w , a n d the t y p e of q u e s t i o n n a i r e users complete when ordering equipment In 1989, thers wa=~p u b l i s h e d in the U ~ = 0 a new c a t a l o g u e 'Filters for Liquid. Part 1; C o n t i n u o u s filters for liquid', M o s c o w , CINTIchimnevtemash, 1 9 8 9 - 142pp, The c a t a l o g u e c a m e into use in the fourth q u a r t e r of 1989, and it c o n t a i n s r e g u l a r types of c o n t i n u o u s filters m a n u f a c t u r e d in theUSSR, As rule, the filters e n u m e r a t e d b e l o w are p r o d u c e d w i t h several m o d i f i c a t i o n s , tn particular they can differ in the material from w h i c h parts are m a d e w h i c h c o m e i n t o c o n t a c t w i t h slurry. They can be made of c a r b o n steel, stainless steel, titanium, r u b b e r - c o a t e d c a r b o n steel o r they may differ in s o m e details. The data presented b e l o w are given in the f o l l o w i n g order: filter type/filtering area, m2/total n u m b e r o f d i f f e r e n t m o d i f i c a t i o n s of filter for this type. r'lVacuum drum filters with knife (scraper) cake d i s c h a r g e : BONI1 ; 5; 10; 20 30; 40; 80/29, P r o d u c e r - Production Association 'Uralchimmash', Sverdlovsk city and ScienceP r o d u c t i o n Association 'Penzamash', Penza city (for filter BON w i t h fi;tering area 40m=). El V a c u u m d r u m belt filters: BOP/5; 10; 20; 30; 40; 80/30, P r o d u c e r - ' U r a l c h i m mash', Sverdlovsk city and 'Penzamash', Penza city (for filter BOP w i t h filtering area 40m~). [ ] V a c u u m d r u m c e l l u l a r filters f o r o p e r a t i n g w i t h p r e c o a t layer; BNMfS; 10; 20; 30; 40127. P r o d u c e r 'Uratchimmash'. [ ] V a c u u m d r u m cellular h e r m e t i c a l l y sealed filters for c o m b u s t i b l e and highly volatile liquids: BGN/5; 10: 50; 80/18, - ' U r a l c h i m m a s h ' and 'Penzamash" (for filter w i t h filtering 50m2). E3 V a c u u m d r u m c e l l u l a r filter for lightly filtrating slurry: PLN/40/1. P r o d u c e r 'Penzamash'. D V a c u u m d r u m uncellular filter for precoat layer: B B M / 1 0 t l . P r o d u c e r - 'Uralchimmash'. [ } Gravity d r u m filters w i t h external filtering surface: BKV/20; 40; 60/12. Prod u c e r - "Uralch~mmash'. [ } D i s k v a c u u m filters: DOO/16; 32; 50; 63; 100; 160; 250126. P r o d u c e r - Prod u c t i o n Association "Progress', Berdit h e y city. [ ] V a c u u m filter for s l o w i y filtered slurry: DTO/34; 5 1 : 68/3. P r o d u c e r - "Progress', B e r d i c h e v city. [ ] Belt v a c u u m filters: LON/1.8; 4/13 and LOPilO; 12; 15i 30/6. P r o d u c e r - 'Progress'. E] H o r i z o n t a l table vacuum filter: TOSH/20/1. Producer 'Uralchimmash'. [ ] T i l t i n g pan v a c u u m filter: TKMtSO: !00/2. P r o d u c e r ~ !Uralchimmash'. [ ] Beltpress filter: LMN/10/1. P r o d u c e r 'Progress'•
330
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The c a t a l o g u e illustrates all types of filters, and gives general schemes and basic characteristics such as: field of a p p l i c a t i o n , filtering area, sizes, w o r k i n g pressure, electric m o t o r s power, mass of basic units, etc. In a d d i t i o n , it also gives: schemes of vacuum-filters mounting and their a r r a n g e m e n t w i t h subsidiary e q u i p m e n t : advice on choice of subsidiary e q u i p m e n t (receivers; condensers; v a c u u m - p u m p s ; traps; blowers). Producers of filters d o not supply filtering c l e t h s a n d s c r e e n s .
Questionnaire When o r d e r i n g e q u i p m e n t , users c o m plete a questionnaire, which is systemlsed and p r o c e s s e d by c o m p u t e r . Details need to be s u p p l i e d of s l u d g e d e s c r i p t i o n ; what process results f r o m it; chemical c o m p o s i t i o n of solid and liquid phases. Required o u t p u t : on sludge, on filtrated and on cake; filtrate purity (mgJl); cake m o i s t u r e (%); p e r m i s s i b l e size of solid particle in filtrate (micron). Questions to be a n s w e r e d are: 1.Solid phase content in s l u d g e (% by mass). Possible a n s w e r (P. Ans.): 0.0001-0.001 ; 0•001-0.005:0.0051.0.01 ; 0 • 0 1 1 - 0 . 5 : 0 . 5 1 -I.0; 1.1-4.9: 5•0-10: i0.1-30; 30.1-70, Solid phase d i s c r i p • t i o n (enter). 2.Temperature of filtratgd sludge: boiling (at O.07MPa) (°C). P. Ans.: - 7 0 to -31:-30 to - 1 1 : - 1 0 to 0; 1-40: 41-60; 61-80; 81-100; 101-140: m o r e than 140. T e m p e r a t u r e of crystallisation (enter). 3.Solid phase s l u d g e nature. P. Ans.: crystal: w i t h c o l l o i d a l inclusions (inc l u s i o n s %): a m o r p h o u s ; f i b r o u s : colloidal. 4.Fineness of solid phase ( m i c r o n ) (enter, %). Their content in sludge (%). P. Ans.: m o r e than 3.000: 3.000-1.001: 1,000-251: 250-75; 74-41: 40-10; less than 10. 5.Solid phase sludge density (t/m3). P. Ans.: less than 1: 1-2.5: 2.6-5; m o r e than 5. 6.Nature of the resultant cake. P. Ans.: grainy, c r u m b l y ; strong, breakable, fragile; adhesive: staining: cementible. 7.Chemical activity of liquid phase (pH). P. Ans.: less than 2, free acid presence; 2-5, free acid presence: 5-11: m o r e than 11: c h l o r ion presence. 8.Viscosity of tiquid phase (Nxs/rnz). P. Ans.: less than 3 E ( - 3 ) : (3-80)E(-3); (80-300)E(-3): m o r e than 3 0 0 E ( - 3 ) . 9•Warning of the filter is necessary. P. Ans.: Yes: No. 10.Category (class) of p r o d u c t i o n room• 11•Category and g r o u p of explosive and fire product,
12,Toxicity ( p h y s i o l o g i c a l harmness of evolved vapours). 13.Tightness ~,srequired. P• Arts.." Yes; No. 14.Local exhaustion is necessary (exhaustion fan). P• Ans.: Yes: No. 15.Cake w a s h i n g is necessary; f l o w r a t e of w a s h i n g liquid, % to the mass of wet cake, w a s h i n g l i q u i d d e s c r i p t i o n (enter). P• Arts.: No w a s h i n g is req u i r e d ; flowrate <~150; f i o w r a t e <~500; f l o w r a t e >500: u n l i m i t e d w i t h t h i n n i n g (repulpation), Residual content of soluble rnatter in cake (enter). 16•Separation of filtrate and w a s h i n g liquid is necessary. P. Ans.: Yes: No• 17.Usage of p r e c o a t i n g is necessary. P. Ans.: Yes: No. 18.The f o r m in w h i c h it is necessary to r e m o v e the cake. P. Ans,: it d o e s n ' t matter; in a relatively dry f o r m ; in a suspend0d (wet) f o r m ; as a paste. 19,Way of pressurising, pressure difference (MPa). P. Ans.: (Enter) v a c u u m ; excess pressure: hydrostatic pressure. 20.Used after filtration. P. Ans.: cake; filtrate. 21.Main c o n s t r u c t i o n material. P. Ans.: c a r b o n steel; c o r r o s i o n resistant steel; t i t a n i u m alloy: r u b b e r (coating): plastics: a l u m i n i u m : cast iron. 22,Required area of filtration surface (m~-). 23.Required d e g r e e of m e c h a n i s a t i o n and a u t o m a t i o n . P• Ans.: manual control and cake discharge; manual discharge, remote c o n t r o l ; mechanised discharge, manual c o n t r o l : m e c h a n ised discharge, a u t o m a t i o n control. 24.Devices. P. Ans.: hip roof and similar; none required• 25•Auxiliaries. P. Arts.: none required; standard c o m p l e t i n g units are necessary: non-standard c o m p l e t i n g units are necessary. 26•Filtration results on utitised filter (enter filter type): for c o n t i n u o u s filters - rate of filtering surface transfer or frequency of d r u m rotation. P. Arts: pressure differential (MPa); o u t p u t (size) on sludge o r on filtrate or on cake: final m o i s t u r e c o n t e n t of the cake (%): filtrate purity (mgll): cake thickness (ram); enter t h e filtering m e d i u m used: d u r a t i o n (s) o r the cycle, of filtration. 27.Filtration results as m o d e l l e d by filtration funnel. P. Ans.: filtrate v o l u m e (rn 3) Or cake mass (kg) a c c o r d i n g to t i m e (s) f r o m t h e b e g i n n i n g of measurements: VI (G1) = , t l = : Vz (G~) = : t~. = ; V~ (Ga) = ; ts = : V, (G4) ---; Pressure d i f f e r e n t i a l (MPa): cake thickness (mm): m o i s t u r e content of the cake (%). V - filtrate v o l u m e ; G cake mass. 28.Filter m e d i u m . P. Ans.: cloth (mesh); mesh for p r e c o a t i n g layer: metal ceramics: paper: ceramics: etc. 29.Aim of the order• P. Ans.: to replace the w o r n - o u t parts: to start new prod u c t i o n if there is filtration experience; to start n e w p r o d u c t i o n w h e n there is no filtration experience. 30•Filter has been c h o s e n by the client on the basis of. P. Ans•: a n a l o g y w i t h s o m e other p r o d u c t i o n : e x p e r i e n c e of filter utilisation: e x p e r i m e n t a l data; no data and experience available. Special technical requirements.
September/October 1990
F i l t r a t i o n & Separation
by Alex
~'elshin
O u r c o r r e s p o n d e n t p r e s e n t s t h e i n f o r m a t i o n c o n t a i n e d in a n e w c a t a l o g u e of c o n t i n u o u s liquid filters p u b l i s h e d in M o s c o w , a n d the t y p e of q u e s t i o n n a i r e users complete when ordering equipment In 1989, thers wa=~p u b l i s h e d in the U ~ = 0 a new c a t a l o g u e 'Filters for Liquid. Part 1; C o n t i n u o u s filters for liquid', M o s c o w , CINTIchimnevtemash, 1 9 8 9 - 142pp, The c a t a l o g u e c a m e into use in the fourth q u a r t e r of 1989, and it c o n t a i n s r e g u l a r types of c o n t i n u o u s filters m a n u f a c t u r e d in theUSSR, As rule, the filters e n u m e r a t e d b e l o w are p r o d u c e d w i t h several m o d i f i c a t i o n s , tn particular they can differ in the material from w h i c h parts are m a d e w h i c h c o m e i n t o c o n t a c t w i t h slurry. They can be made of c a r b o n steel, stainless steel, titanium, r u b b e r - c o a t e d c a r b o n steel o r they may differ in s o m e details. The data presented b e l o w are given in the f o l l o w i n g order: filter type/filtering area, m2/total n u m b e r o f d i f f e r e n t m o d i f i c a t i o n s of filter for this type. r'lVacuum drum filters with knife (scraper) cake d i s c h a r g e : BONI1 ; 5; 10; 20 30; 40; 80/29, P r o d u c e r - Production Association 'Uralchimmash', Sverdlovsk city and ScienceP r o d u c t i o n Association 'Penzamash', Penza city (for filter BON w i t h fi;tering area 40m=). El V a c u u m d r u m belt filters: BOP/5; 10; 20; 30; 40; 80/30, P r o d u c e r - ' U r a l c h i m mash', Sverdlovsk city and 'Penzamash', Penza city (for filter BOP w i t h filtering area 40m~). [ ] V a c u u m d r u m c e l l u l a r filters f o r o p e r a t i n g w i t h p r e c o a t layer; BNMfS; 10; 20; 30; 40127. P r o d u c e r 'Uratchimmash'. [ ] V a c u u m d r u m cellular h e r m e t i c a l l y sealed filters for c o m b u s t i b l e and highly volatile liquids: BGN/5; 10: 50; 80/18, - ' U r a l c h i m m a s h ' and 'Penzamash" (for filter w i t h filtering 50m2). E3 V a c u u m d r u m c e l l u l a r filter for lightly filtrating slurry: PLN/40/1. P r o d u c e r 'Penzamash'. D V a c u u m d r u m uncellular filter for precoat layer: B B M / 1 0 t l . P r o d u c e r - 'Uralchimmash'. [ } Gravity d r u m filters w i t h external filtering surface: BKV/20; 40; 60/12. Prod u c e r - "Uralch~mmash'. [ } D i s k v a c u u m filters: DOO/16; 32; 50; 63; 100; 160; 250126. P r o d u c e r - Prod u c t i o n Association "Progress', Berdit h e y city. [ ] V a c u u m filter for s l o w i y filtered slurry: DTO/34; 5 1 : 68/3. P r o d u c e r - "Progress', B e r d i c h e v city. [ ] Belt v a c u u m filters: LON/1.8; 4/13 and LOPilO; 12; 15i 30/6. P r o d u c e r - 'Progress'. E] H o r i z o n t a l table vacuum filter: TOSH/20/1. Producer 'Uralchimmash'. [ ] T i l t i n g pan v a c u u m filter: TKMtSO: !00/2. P r o d u c e r ~ !Uralchimmash'. [ ] Beltpress filter: LMN/10/1. P r o d u c e r 'Progress'•
330
....
The c a t a l o g u e illustrates all types of filters, and gives general schemes and basic characteristics such as: field of a p p l i c a t i o n , filtering area, sizes, w o r k i n g pressure, electric m o t o r s power, mass of basic units, etc. In a d d i t i o n , it also gives: schemes of vacuum-filters mounting and their a r r a n g e m e n t w i t h subsidiary e q u i p m e n t : advice on choice of subsidiary e q u i p m e n t (receivers; condensers; v a c u u m - p u m p s ; traps; blowers). Producers of filters d o not supply filtering c l e t h s a n d s c r e e n s .
Questionnaire When o r d e r i n g e q u i p m e n t , users c o m plete a questionnaire, which is systemlsed and p r o c e s s e d by c o m p u t e r . Details need to be s u p p l i e d of s l u d g e d e s c r i p t i o n ; what process results f r o m it; chemical c o m p o s i t i o n of solid and liquid phases. Required o u t p u t : on sludge, on filtrated and on cake; filtrate purity (mgJl); cake m o i s t u r e (%); p e r m i s s i b l e size of solid particle in filtrate (micron). Questions to be a n s w e r e d are: 1.Solid phase content in s l u d g e (% by mass). Possible a n s w e r (P. Ans.): 0.0001-0.001 ; 0•001-0.005:0.0051.0.01 ; 0 • 0 1 1 - 0 . 5 : 0 . 5 1 -I.0; 1.1-4.9: 5•0-10: i0.1-30; 30.1-70, Solid phase d i s c r i p • t i o n (enter). 2.Temperature of filtratgd sludge: boiling (at O.07MPa) (°C). P. Ans.: - 7 0 to -31:-30 to - 1 1 : - 1 0 to 0; 1-40: 41-60; 61-80; 81-100; 101-140: m o r e than 140. T e m p e r a t u r e of crystallisation (enter). 3.Solid phase s l u d g e nature. P. Ans.: crystal: w i t h c o l l o i d a l inclusions (inc l u s i o n s %): a m o r p h o u s ; f i b r o u s : colloidal. 4.Fineness of solid phase ( m i c r o n ) (enter, %). Their content in sludge (%). P. Ans.: m o r e than 3.000: 3.000-1.001: 1,000-251: 250-75; 74-41: 40-10; less than 10. 5.Solid phase sludge density (t/m3). P. Ans.: less than 1: 1-2.5: 2.6-5; m o r e than 5. 6.Nature of the resultant cake. P. Ans.: grainy, c r u m b l y ; strong, breakable, fragile; adhesive: staining: cementible. 7.Chemical activity of liquid phase (pH). P. Ans.: less than 2, free acid presence; 2-5, free acid presence: 5-11: m o r e than 11: c h l o r ion presence. 8.Viscosity of tiquid phase (Nxs/rnz). P. Ans.: less than 3 E ( - 3 ) : (3-80)E(-3); (80-300)E(-3): m o r e than 3 0 0 E ( - 3 ) . 9•Warning of the filter is necessary. P. Ans.: Yes: No. 10.Category (class) of p r o d u c t i o n room• 11•Category and g r o u p of explosive and fire product,
12,Toxicity ( p h y s i o l o g i c a l harmness of evolved vapours). 13.Tightness ~,srequired. P• Arts.." Yes; No. 14.Local exhaustion is necessary (exhaustion fan). P• Ans.: Yes: No. 15.Cake w a s h i n g is necessary; f l o w r a t e of w a s h i n g liquid, % to the mass of wet cake, w a s h i n g l i q u i d d e s c r i p t i o n (enter). P• Arts.: No w a s h i n g is req u i r e d ; flowrate <~150; f i o w r a t e <~500; f l o w r a t e >500: u n l i m i t e d w i t h t h i n n i n g (repulpation), Residual content of soluble rnatter in cake (enter). 16•Separation of filtrate and w a s h i n g liquid is necessary. P. Ans.: Yes: No• 17.Usage of p r e c o a t i n g is necessary. P. Ans.: Yes: No. 18.The f o r m in w h i c h it is necessary to r e m o v e the cake. P. Ans,: it d o e s n ' t matter; in a relatively dry f o r m ; in a suspend0d (wet) f o r m ; as a paste. 19,Way of pressurising, pressure difference (MPa). P. Ans.: (Enter) v a c u u m ; excess pressure: hydrostatic pressure. 20.Used after filtration. P. Ans.: cake; filtrate. 21.Main c o n s t r u c t i o n material. P. Ans.: c a r b o n steel; c o r r o s i o n resistant steel; t i t a n i u m alloy: r u b b e r (coating): plastics: a l u m i n i u m : cast iron. 22,Required area of filtration surface (m~-). 23.Required d e g r e e of m e c h a n i s a t i o n and a u t o m a t i o n . P• Ans.: manual control and cake discharge; manual discharge, remote c o n t r o l ; mechanised discharge, manual c o n t r o l : m e c h a n ised discharge, a u t o m a t i o n control. 24.Devices. P. Ans.: hip roof and similar; none required• 25•Auxiliaries. P. Arts.: none required; standard c o m p l e t i n g units are necessary: non-standard c o m p l e t i n g units are necessary. 26•Filtration results on utitised filter (enter filter type): for c o n t i n u o u s filters - rate of filtering surface transfer or frequency of d r u m rotation. P. Arts: pressure differential (MPa); o u t p u t (size) on sludge o r on filtrate or on cake: final m o i s t u r e c o n t e n t of the cake (%): filtrate purity (mgll): cake thickness (ram); enter t h e filtering m e d i u m used: d u r a t i o n (s) o r the cycle, of filtration. 27.Filtration results as m o d e l l e d by filtration funnel. P. Ans.: filtrate v o l u m e (rn 3) Or cake mass (kg) a c c o r d i n g to t i m e (s) f r o m t h e b e g i n n i n g of measurements: VI (G1) = , t l = : Vz (G~) = : t~. = ; V~ (Ga) = ; ts = : V, (G4) ---; Pressure d i f f e r e n t i a l (MPa): cake thickness (mm): m o i s t u r e content of the cake (%). V - filtrate v o l u m e ; G cake mass. 28.Filter m e d i u m . P. Ans.: cloth (mesh); mesh for p r e c o a t i n g layer: metal ceramics: paper: ceramics: etc. 29.Aim of the order• P. Ans.: to replace the w o r n - o u t parts: to start new prod u c t i o n if there is filtration experience; to start n e w p r o d u c t i o n w h e n there is no filtration experience. 30•Filter has been c h o s e n by the client on the basis of. P. Ans•: a n a l o g y w i t h s o m e other p r o d u c t i o n : e x p e r i e n c e of filter utilisation: e x p e r i m e n t a l data; no data and experience available. Special technical requirements.
September/October 1990
F i l t r a t i o n & Separation