Gravity Belt and Drum Thickeners for Sludge Thickening

WIMES 7.03 Page 40

APPENDIX C - DATA SHEET

GRAVITY BELT AND DRUM THICKENERS FOR SLUDGE THICKENING

PROJECT TITLE (P) / DOCUMENT REFERENCE (P)
PROJECT NUMBER (P) / REVISION (P)
PROJECT LOCATION (P) / DATE (P)
THICKENER SUPPLIER (P/S) / REF DRAWINGS (included/not included) (P)
TAG NO/ASSET CODE (P)

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* - Indicates Purchaser’s default requirement

2.0 GENERAL

2.1 General

1 / Type of Thickener Required/Provided (ü) (P/S)
GBT
DT
2 / No. of Identical Thickeners Required /Provided (P/S)
3 / Provision of Ancillary Equipment (Thickener Supplier/Others) (P/S)
a / Polymer make-up and dosing system
b / Thickener feed pumps
c / Belt/drum washwater supply pumps & header tank
d / Discharge hopper/tank
e / Thickened sludge transfer system
f / Odorous air extraction and treatment system

3.0 OPERATING ENVIRONMENT & SITE DETAILS

1 / Type of Installation (ü) (P/S)
Semi-mobile
Permanent
2 / Possible Operating Environment(s) (P)
Site Location(s) (ü)
Inland
Coastal
Other (specify)
Thickener Location(s) (ü)
Inside
Outside
Other (specify)
Ambient Temperature Range (°C)
Minimum/maximum
Relative Humidity Range (%)
Minimum/maximum
Hazardous Area Classification (s)
Details / Internal / External
Zone (0, 1, 2 or N/A)
Gas Group
Temperature class
Extent of Zone 2 External to Thickener (IfApplicable) (P)
EMC Environment(s) (ü)
Class B - light industrial
Class A - industrial
3 / Ambient Air Temp/RH (10°C-40°C/< 95%*) (P)
4 / Special Environmental Hazards (P)
5 / References For Further Information (P)

4.0 FEED SLUDGE AND FLOCCULANT CHARACTERISTICS

1 / Feed Sludge (P)
Type
Raw/digested
Raw Sludge - Proportions (By DS) (P) / %
Primary
SAS
Humus
Other (specify)
2 / Feed Sludge Screening (P)
Screened sludge (Y/N)
Aperture size/type (e.g. 6mm slot)
3 / Details of Solids in Feed Sludge (P)
Content (min-max) (wt %)
Particle size range (µm)
Grit content (high/low)
Rag content (high/low)
Grease content (high/low)
4 / Feed Sludge Properties (P) (If Known)
Age (septicity)
pH
Salinity (Peak/average)
(mg Cl/l)
Newtonian/non-Newtonian
Kinematic viscosity (cSt)
Density (kg/m3)
Polythickened (Y/N)
Temperature (inlet) (°C) / Min / Max
4 / Adverse or Hazardous Properties (ü) (P)
Toxic
Corrosive
Abrasive
Odorous
Gaseous
Other (specify)
5 / Flocculant Details (P/S)
6 / Details of Any Other Chemicals Added to the Feed Sludge (P)
7 / Any Other Relevant Information Relating to the Sludge/Flocculant (P)

5.0 PERFORMANCE SPECIFICATION

5.1 General

1 / Design Life (Years) (P)

5.2 Duty and Absorbed Power

1 / Duty/Utilisation (P)
Hrs per day
Days per week
2 / Maximum Absorbed Power (kW) (S)

5.3 Process Performance

1 / Thickened Sludge Solids Content (wt %) (P)
Required range (min-max)
2 / Solids Recovery Ratio (P)
Minimum required
3 / Filtrate Solids Content (ppm ss) (P)
Maximum allowed
4 / Sludge Throughput (m3/hr) (P/S)
Required range
(min-max) (P)
Maximum achievable (S)
5 / Flocculant Information (P/S)
Flocculant Dosing Rate (kg/tds) (S)
Maximum required
Thickened Sludge Flocculant Content (wt%) (P)
Maximum allowed

5.4 Noise

1 / Expected Noise Levels (dB (A) at 1 m) (S)

5.5 Life Cycle Costs

5.5.1 Energy Consumption

1 / Specific Energy Consumption (P/S)
Process Conditions (P)
Sludge throughput (m3/hr)
Feed sludge solids content (wt %)
Thickened Sludge solids content (wt %)
Energy Consumption (kWhrs/tds) (S)

5.5.2 Service Lives and Costs of Components

1 / Expected Service Lives (P/S)
Component (Specify) / Life (x103 hrs)
2 / Costs of Components (£)/Time Required to Replace Components (hrs) (S)
Component (specify) / Cost / Time

6.0 DESIGN SPECIFICATION

6.1 General

6.1.2 Weights and Lifting Arrangements

1 / Weights (kg) (S)
Overall weight (dry/wet)
Max. maintenance lift
Max. erection lift
2 / Details of Special Lifting Accessories Provided (S)

6.1.5 Sludge/Polymer Mixer (If Specified/Supplied)

1 / Required/Provided (Y/N) (P/S)
3 / Number of Pipe Diameters (S)

6.1.6 Flocculation Chamber (If Specified/Supplied)

1 / Required/Provided (Y/N) (P/S)
2 / Chamber Material (P/S)
5 / Connection (P/S) / DN (mm) / PN Rating
Inlet
Outlet
Sampling/Drain
6 / Mixer Required/Provided (Y/N) (P/S)

6.1.7 Structural Frame

2 / Structural Frame Material (P/S)

6.1.9 Bearings and Lubrication

6 / Method of Bearing Re-Greasing (ü) (P/S)
Manual re-greasing
Automatic lubricators
Centralised lubrication system
7 / Minimum Capacity/Life of Automatic Lubricators (cc/mths) (P/S)
8 / Minimum Capacity/Life of Reservoir (cc/mths) (P/S)
8 / Low Flow Alarm Required (Y/N) (P)

6.1.10 Thickened Sludge Collection/Discharge Arrangements

1 / Provision of Hopper/Tank (ü) (P/S)
Thickener supplier
Others
2 / Hopper/Tank Material (P/S)
3 / Hopper/Tank Capacity (m3) (P/S)
4c / Hopper/Tank Cleaning Facilities (S)
5 / Connection (P/S) / DN (mm) / PN Rating
Outlet
Sampling/drain
Washwater
6 / Hopper/Tank Blockage Clearance Facilities (S)
7 / Level Sensors Required/Provided (P/S)
8 / Thickened Sludge Transfer Arrangements (P/S)

6.1.12 Information Plate

1 / Data Reqd. on Information Plate (ü) (P)
Manufacturer
Date of manufacture
Thickener type
Serial number
Max. power input (kW)
Weight (wet/dry) (kg)
Asset code
Other (specify)

6.1.14 LV Assembly and Associated Electrical Installation (If Specified/Supplied)

1 / LV Assembly Required /Provided (Y/N) (P/S)
2 / LV Assembly and Electrical Installation Specification (WIMES3.04*) (P)
4 / Rating of Contacts on Limit Switches and Sensors (P/S)

6.1.15 Maintainability

2 / Maintenance Platform Required (Y/N) (P)
2 / Reference for Platform Specification (P)

6.1.16 O & M Manuals

1 / Reference for O & M Manual Specification (P)

6.2 Gravity Belt Thickeners (GBTs)

6.2.2 Gravity Drainage Section (GDS)

2 / Filter Belt Material (P/S)
2 / Belt Width (m) (S)
Total
Effective
2 / Belt Lengths (m) (S)
Total
Effective (in the GDS)
2 / Type of Construction (ü) (S)
Link type
Split
3 / Clip Material (P/S)
4 / Ploughs (S)
No. of rows of ploughs
No. of ploughs per row
8 / Method of Controlling the Thickness of the Discharged Sludge (S)

6.2.4 Rollers

6.2.4.2 Roller Support Bearings and Roller Bearing Lubrication

2 / Roller Bearing Details (S)
3 / Split Type Bearings Required/Provided (Y/N) (P/S)
3 / Bearing Housing Material (S)
4 / Roller Bearing Lubricant Details (P/S)

6.2.5 Belt Drive Assembly

2 / Belt Speed Range (m/min) (S)
2 / Method of Speed Adjustment (P/S)

6.2.6 Belt Tensioning

1 / Type of Belt Tensioning Equipment Required/Provided (ü) (P/S)
Manual
Hydraulic
Pneumatic
Automatic adjustment (Y/N)
2 / Design Belt Tension (kN) (S)
3 / Belt Tension Indication Required (Y/N) (P)

6.2.7 Belt Tracking System

1 / Type of Belt Tracking System Provided (S)

6.2.8 Belt Wash System

1 / Type of Belt Wash System Required/Provided (ü) (P/S)
Continuous
Intermittent
3 / Washwater Connection Details (P/S)
4 / Washwater Provisions/Requirements
Pressure Range (bar)
Available on site (P)
Required (S)
Flow Range (l/min)
Available on site (P)
Required (S)
Type(s) Available on Site (ü) (P)
Final effluent
Potable water
Filtrate
Type(s) Required (ü) (S)
Final effluent
Potable water
Filtrate
5 / Spray Bar/Nozzle Details (S)
Number of spray bars
Number of nozzles per spray bar
Type of nozzle
9 / Pipework and Nozzle Materials (P/S)
10 / Actuated Valve Type (ü) (P/S)
Full bore, ¼ turn
Solenoid
11 / Belt Hot Water Cleaning Facility
Required (Y/N) (P)
Coupling and End Cap Details (P)
Maximum Hot Water Temperature (°C) (S)
12 / Belt Steam Clean Spray Bar
Required (Y/N) (P)
Steam Provisions/Requirements
Pressure Range (bar)
Available on site (P)
Required (S)
Flow Range (m3/hr)
Available on site (P)
Required (S)
Spray Bar Nozzle Details (S)
Number of nozzles
Type of nozzle
Coupling and End Cap Details (P)
Maximum Steam Temperature (°C) (S)

6.2.10 Filtrate Collection/Discharge Arrangements

2 / Tray Material (P/S)
2 / Interconnecting Pipework Material (P/S)
4 / Connection (P/S) / DN (mm) / PN Rating
Outlet
Sampling/Drain
5 / Filtrate Transfer Arrangements (P/S)
6 / High Level Sensor Required (Y/N) (P)

6.2.11 Odour Control Cover (If Specified)

1 / Odour Control Covers Required (Y/N) (P)
3 / Hatch Cover Locking Facilities Reqd. (Y/N) (P)
9 / Number and Size of Inlet Air Vents and Outlet Air Connections (S)
10 / Volume Enclosed by Covers (m3) (S)

6.3 Drum Thickeners (DTs)

6.3.2 Drum Construction

6.3.2.1 General (All Types of Drum Design)

1 / Type of Drum Design (ü) (P/S)
Fixed
Rotating
2 / Drum Details (S)
Diameter (mm)
Length (m)
Range of inclinations (°)
3 / Drum Assembly Materials (P/S)
6 / Casing Material (P/S)
7 / Sealing Arrangements (P/S)

6.3.2.2 Rotating Drum Designs

Drum Drive

3 / Drum Speed Range (rpm) (S)

6.3.3 Sludge Transport (Along the Drum)

6.3.3.1 General

1 / Method of Sludge Transfer (ü) (P/S)
Gravity
Shafted auger/spiral
Other (specify)

6.3.2.2 Shafted Auger/Spiral

General

1 / Auger/Spiral Material (P/S)
1 / Auger/Spiral Details (S)
Diameter (mm)
Length (m)
Pitch of flights

Drive System

3 / Auger Speed Range (rpm) (S)
3 / Method of Auger Speed Adjustment (P/S)

6.3.4 Sludge Compaction Zone (IfSpecified/Supplied)

1 / Compaction Zone Required/Provided (Y/N) (P/S)

6.3.5 Drum Wash System

1 / Type of Drum Wash System Required /Provided (ü) (P/S)
Continuous
Intermittent
3 / Washwater Connection Details (P/S)
4 / Washwater Provisions/Requirements
Pressure Range (bar)
Available on site (P)
Required (S)
Flow Range (l/min)
Available on site (P)
Required (S)
Type(s) Available on Site (ü) (P)
Final effluent
Potable water
Filtrate
Type(s) Required (ü) (S)
Final effluent
Potable water
Filtrate
5 / Spray Bar/Nozzle Details (S)
Number of spray bars
Number of nozzles per spray bar
Type of nozzle
8 / Pipework and Nozzle Materials (P/S)
9 / Actuated Valve Type (ü) (P/S)
Full bore, ¼ turn
Solenoid

6.3.7 Filtrate Outlet Arrangements

3 / Connection (P/S) / DN (mm) / PN Rating
Outlet
Sampling/Drain
4 / Filtrate Transfer Arrangements (P/S)

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7.0 TESTS

7.1 General (Clause 1)

Type of Test (P) / Test Location (ü) (P) / Witnessing Reqs (P) / Test Standard (P/S) / Acceptance Levels & Tolerances (P)
Works / Site / (Y/N) / Notice (Days)
Absorbed Power (at duty point) / kW
Range of thickened sludge solids contents / wt %
Minimum solids recovery
Maximum filtrate solids content / ppm ss
Range of sludge throughputs / m3/hr
Max. flocculant dosing rate / Kg/tds
Maximum thickened sludge flocculant content / wt %
Noise / dB (A)
Other (specify)

7.2 Factory Acceptance Tests

1 / FATs Required (Y/N) (P)

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APPENDIX C2 – DRIVE SYSTEM DATA SHEET

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Drive No.:

1 / Driven Equipment (P/S)
2 / Method of Power Transmission from Drive System to Driven Eqpt. (ü) (P/S)
Close coupled
Chain
Belt
Other (specify)
3 / Method of Mechanical Overload Protection (ü) (P/S)
Current monitoring
Torque limiting coupling
Other (specify)
5 / Gearbox Details (S)
Type and Number of Stages
Manufacturer
Service factor (min. 1.5)
IP rating
6 / Gearbox Output Speed (rpm) (S)
Fixed speed
Variable speed (range)

Drive No.:

1 / Driven Equipment (P/S)
2 / Method of Power Transmission from Drive System to Driven Eqpt. (ü) (P/S)
Close coupled
Chain
Belt
Other (specify)
3 / Method of Mechanical Overload Protection for Drive System (ü) (P/S)
Current monitoring
Torque limiting coupling
Other (specify)
5 / Gearbox Specification (S)
Type and Number of Stages
Manufacturer
Service factor (min. 1.5)
IP rating
6 / Gearbox Output Speed (rpm) (S)
Fixed speed
Variable speed (range)

Drive No.:

1 / Driven Equipment (P/S)
2 / Method of Power Transmission from Drive System to Driven Eqpt. (ü) (P/S)
Close coupled
Chain
Belt
Other (specify)
3 / Method of Mechanical Overload Protection for Drive System (ü) (P/S)
Current monitoring
Torque limiting coupling
Other (specify)
5 / Gearbox Specification (S)
Type and Number of Stages
Manufacturer
Service factor (min. 1.5)
IP rating
6 / Gearbox Output Speed (rpm) (S)
Fixed speed
Variable speed (range)

Drive No.:

1 / Driven Equipment (P/S)
2 / Method of Power Transmission from Drive System to Driven Eqpt. (ü) (P/S)
Close coupled
Chain
Belt
Other (specify)
3 / Method of Mechanical Overload Protection for Drive System (ü) (P/S)
Current monitoring
Torque limiting coupling
Other (specify)
5 / Gearbox Specification (S)
Type and Number of Stages
Manufacturer
Service factor (min. 1.5)
IP rating
6 / Gearbox Output Speed (rpm) (S)
Fixed speed
Variable speed (range)

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APPENDIX D – SUPPLIER’S SUPPLEMENTARY DATA SHEET INFORMATION

Clause / Supplementary Information

ISSUE 3 OCTOBER 2013