Client Representation
Audits for compliance with BKP in fugitive emission control design
Construction Management
Construction Phase Configuration Audits for compliance with BKP in fugitive emission control
Commissioning
Operating Plant Configuration Audits for compliance with BKP in fugitive emission control
Innovative and specialised equipment design for In-Process© particulate emission control
ROM Dump Hopper "Best Practice" design incorporating full Environmental controls over fugitive emissions
Dust suppression nozzle spray performance testing
Belt washing nozzle spray performance testing
Emission Parameter Analysis and Modelling
Project Management
Technical training

It is not possible for any one single organisation to be uniquely positioned to provide the best in all aspects of environmental and consulting service support. Accordingly we have focussed on the pursuit of excellence in the narrow specific field in which we have unsurpassed experience.

Q — What do we have that is so unique in the field of fugitive dust control that puts us ahead and able to offer the best of knowledge?

A — Full design and application engineering knowledge of equipment that creates the dynamic environment from which the fugitive emissions result.

Engineering Services with Innovation

T&T has been instrumental in the development and introduction of many innovative and cost-effective technologies. Notable examples have included the following:

In-Process©Fog suppression systems for ROM dump hoppers to control fugitive dust emissions
In-Process© Fog suppression systems for eliminating dust emissions from crushing and screening plants
In-Process© Passive Dust Controls in lieu of ducted dust extraction systems
Passive In-Process© air induction controls
Passive In-Process© screen feed chute and conveyor transfer air induction controls
All with the common objective of minimising fugitive or rogue dust emissions.

Plant Optimisation

This can take the form of plant audits, de-bottlenecking analysis or expansion and optimisation studies.

Projects range in scope from skid mounted packages, to large scale "turnkey" plants involving civil & building works, process plant and equipment, services, control systems and infrastructure.

Dust Control

Our speciality. The majority of companies listed as being involved today in this field are suppliers of proprietary equipment and ducted dust collection systems — thus having vested interests. Unfortunately for industry generally emission control is one that is more often than not considered to be a vendor problem with plug in solutions being available from such companies.

We don’t — we minimise the magnitude of potential emissions from the process by design before defining vendor scope if an add-on solution is determined as being necessary.

Passive In-Process solutions are rarely given adequate attention as they are seen to add unnecessary costs to the front or base design phase of most projects. Invariably these tail end issues are the very ones that blow out a projects cost simply due to the inevitable rush to complete that occurs at the end of every project design phase with dust control being the last non-productive element to be confronted.

It is for this reason that T&T are often contracted by owners and project managers to conduct parallel audits of plant designs under way to ensure that the best available practice is adopted.

The majority of companies listed as consultants in this field often lay claim to many years of experience in the fields of emission plume modelling. This is then touted as being the basis for determining the best solution. We have found that the base input data relied on by these companies often does not reflect real life emission criteria. It is very interesting that the focus of modellers is to keep at the forefront of modelling technology without ensuring the accuracy or adequacy of base reference data.

Unlike the mainstream plume modellers of airborne particulates our expertise is focussed on and recognises emissions as are generated from 'open configuration' large-scale bulk materials handling facilities such as iron ore and coal stockpiling and shipping terminals and closed environments such as mineral process & separation plants. Our principals 30 plus years of active involvement in the core aspects of design for these plants uniquely positions us to provide objective and commercially realistic appraisals and audits.

When the Internet is 'searched' for knowledge the results are generally companies marketing a product or companies and individuals whose first priority is to promote their skills and services as modellers.

We don’t.

Our knowledge, expertise and track record is in the design and configuration of comminution, classification and bulk solids handling plant that minimises the generation and escape of airborne particulates. And based on this core knowledge base we model emissions as occur as a secondary subservient role.

Invariably product oriented companies (both as vendors and as consultants) in designing dust extraction and gas cleaning systems rely entirely on publications and design guides produced by others. There are some excellent publications available including one by the ACGIH titled 'Industrial Ventilation — A Manual of Recommended Practice'.

These publications provide 'standard'solutions to 'typical' plant arrangements and are produced to guide the designers through the process of design. They do not necessarily provide the most up to date or best solution.

The best solutions are those that collectively embrace the 'standard' recommended approaches as typified by the ACGIH, the detail dynamic characteristics of each individual piece of equipment or plant and the characteristics of material being processed.

Our design process based on our unique design expertise utilises current BKP that fully embraces the dynamics of variables that characterise the equipment to which ducted systems connect or passive controls are best applied.

Unless the system designers have detail knowledge and thus the capability to design/apply the equipment to which the systems are intended to serve then the resultant designs cannot be fully objective nor representative of best practice.

Our detail knowledge in this regard allows us to embrace both passive and active control selection to resolve issues where in most instances it is necessary as the first step to address the cause rather than treat the symptom

The company’s founder, owner and principal consultant provides the company’s unique knowledge base through having gained considerable design/application engineering experience with the worlds leaders in comminution and classification technology as well as in dust removal and associated control technologies. Such companies have included Allis-Chalmers, Marcy (Mine & Smelter) Hazemag, Krupp, Ibag, Lokomo, Joy Western Precipitation, Clyde Carruthers, UOP Aeromix, Wheelabrator, Standard Filterbau and Macawber International who all represent some of the best in equipment design for their respective fields.

Particular mention here has to be given to the unique design experience our principal gained in the services of Clyde Carruthers during the mid 1970's when the company was contracted by Hamersley Iron to resolve their considerable fugitive dust control issues at their remote Tom Price and Paraburdoo minesite operations in the remote Pilbara region of Western Australia. It took three years. These efforts were recognised in 1977 when Hamersley Iron received a commendation from the Special Inspector of Mines for efforts and progress gained.

It is this unique hands-on practical and proven experience that has resulted in the development of today's benchmark practice that have become the best known, emulated by many, but understood by few.

This unique experience base with some of the driest ore types and in the one of the most environmentally unfriendly and difficult parts of the world complimented by full knowledge of the dynamics of impact crushing technology gained through training in Finland, Germany and Austria well complimented by the technology base attained earlier throughout Australasia places T&T Projects at the forefront of service providers internationally.

Unaware to many in the field of dust control this technology together with that associated with pneumatic transfer systems provides the best understanding and appreciation for the dynamics and behaviour of airborne particulate matter. It is this unique knowledge base in combination that has enabled the company to pioneer and produce its specialised proven emission suppression systems and the best in large plant fugitive emission modelling.

So, if your need is to resolve problems with

modelling offsite emissions from the largest bulk solids handling operations including bulk storage and ship loading (coal through iron ore)
excessive emissions from ROM ore bins
particulate flow in feed hoppers, surge bins and feeder combinations for reasons of uneven flow, unacceptable wear or crushing chamber packing, cementation, etc.
problems with excess induced air flow through mineral sands process plants (MSP's) and require design guidance
fugitive emissions from vertical shaft autogenous grinding mills (commonly referred to as VSI’s)
deficient ducted extraction systems
solid particulate emissions from dynamic wet scrubbers
excessive airflows and associated fugitive emissions through and from conveyor transfers
excessive return strand emissions and possible deficiencies with belt cleaning

Or you simply require a configuration audit of your plant (or detail design for your new plant) for compliance with best known practice - we have both the knowledge AND experience.

Videos

These In-Process© linked videos are of four fog cannons assemblies located at the four corners of a ROM dump hopper over a 54x74 Primary Gyratory crusher reducing lump copper ore down to <150 mm. Every time a truckload (150 ton) of rock is dumped into the hopper a huge volume of air is induced to move by the falling material and displaced from the bin. This volume of air (which is larger than the mass of material dumped) together with the entrained dust expelled from the collapsing ore mass in combination is displaced from the ROM bin hopper.

The function of the fog cannons is to dominate air movements and flood the ROM bin with airborne wet fog and mist immediately before the ore is dumped. As the falling ore mass opens it injests the fog. When this mass of ore collapses on the sides and bottom of the ROM Bin the violent expulsion of air/dust from the ore mass results in a violent interaction between fog aerosols and an agglomeration of the dust followed by rapid precipitation of the heavier agglomerated particles within the hopper.

Where ROM bin encapsulation is not viable these cannons constitute the most effective method for minimisation of open ROM bin airborne dust emissions and is an excellent example of BKP (best known practice) as it exists today.

03-2007


	Client Representation Audits for compliance with BKP in fugitive emission control design Construction Management Construction Phase Configuration Audits for compliance with BKP in fugitive emission control Commissioning Operating Plant Configuration Audits for compliance with BKP in fugitive emission control Innovative and specialised equipment design for In-Process© particulate emission control ROM Dump Hopper "Best Practice" design incorporating full Environmental controls over fugitive emissions Dust suppression nozzle spray performance testing Belt washing nozzle spray performance testing Emission Parameter Analysis and Modelling Project Management Technical training It is not possible for any one single organisation to be uniquely positioned to provide the best in all aspects of environmental and consulting service support. Accordingly we have focussed on the pursuit of excellence in the narrow specific field in which we have unsurpassed experience. Q — What do we have that is so unique in the field of fugitive dust control that puts us ahead and able to offer the best of knowledge? A — Full design and application engineering knowledge of equipment that creates the dynamic environment from which the fugitive emissions result. Engineering Services with Innovation T&T has been instrumental in the development and introduction of many innovative and cost-effective technologies. Notable examples have included the following: In-Process©Fog suppression systems for ROM dump hoppers to control fugitive dust emissions In-Process© Fog suppression systems for eliminating dust emissions from crushing and screening plants In-Process© Passive Dust Controls in lieu of ducted dust extraction systems Passive In-Process© air induction controls Passive In-Process© screen feed chute and conveyor transfer air induction controls All with the common objective of minimising fugitive or rogue dust emissions. Plant Optimisation This can take the form of plant audits, de-bottlenecking analysis or expansion and optimisation studies. Projects range in scope from skid mounted packages, to large scale "turnkey" plants involving civil & building works, process plant and equipment, services, control systems and infrastructure. Dust Control Our speciality. The majority of companies listed as being involved today in this field are suppliers of proprietary equipment and ducted dust collection systems — thus having vested interests. Unfortunately for industry generally emission control is one that is more often than not considered to be a vendor problem with plug in solutions being available from such companies. We don’t — we minimise the magnitude of potential emissions from the process by design before defining vendor scope if an add-on solution is determined as being necessary. Passive In-Process solutions are rarely given adequate attention as they are seen to add unnecessary costs to the front or base design phase of most projects. Invariably these tail end issues are the very ones that blow out a projects cost simply due to the inevitable rush to complete that occurs at the end of every project design phase with dust control being the last non-productive element to be confronted. It is for this reason that T&T are often contracted by owners and project managers to conduct parallel audits of plant designs under way to ensure that the best available practice is adopted. The majority of companies listed as consultants in this field often lay claim to many years of experience in the fields of emission plume modelling. This is then touted as being the basis for determining the best solution. We have found that the base input data relied on by these companies often does not reflect real life emission criteria. It is very interesting that the focus of modellers is to keep at the forefront of modelling technology without ensuring the accuracy or adequacy of base reference data. Unlike the mainstream plume modellers of airborne particulates our expertise is focussed on and recognises emissions as are generated from 'open configuration' large-scale bulk materials handling facilities such as iron ore and coal stockpiling and shipping terminals and closed environments such as mineral process & separation plants. Our principals 30 plus years of active involvement in the core aspects of design for these plants uniquely positions us to provide objective and commercially realistic appraisals and audits. When the Internet is 'searched' for knowledge the results are generally companies marketing a product or companies and individuals whose first priority is to promote their skills and services as modellers. We don’t. Our knowledge, expertise and track record is in the design and configuration of comminution, classification and bulk solids handling plant that minimises the generation and escape of airborne particulates. And based on this core knowledge base we model emissions as occur as a secondary subservient role. Invariably product oriented companies (both as vendors and as consultants) in designing dust extraction and gas cleaning systems rely entirely on publications and design guides produced by others. There are some excellent publications available including one by the ACGIH titled 'Industrial Ventilation — A Manual of Recommended Practice'. These publications provide 'standard'solutions to 'typical' plant arrangements and are produced to guide the designers through the process of design. They do not necessarily provide the most up to date or best solution. The best solutions are those that collectively embrace the 'standard' recommended approaches as typified by the ACGIH, the detail dynamic characteristics of each individual piece of equipment or plant and the characteristics of material being processed. Our design process based on our unique design expertise utilises current BKP that fully embraces the dynamics of variables that characterise the equipment to which ducted systems connect or passive controls are best applied. Unless the system designers have detail knowledge and thus the capability to design/apply the equipment to which the systems are intended to serve then the resultant designs cannot be fully objective nor representative of best practice. Our detail knowledge in this regard allows us to embrace both passive and active control selection to resolve issues where in most instances it is necessary as the first step to address the cause rather than treat the symptom The company’s founder, owner and principal consultant provides the company’s unique knowledge base through having gained considerable design/application engineering experience with the worlds leaders in comminution and classification technology as well as in dust removal and associated control technologies. Such companies have included Allis-Chalmers, Marcy (Mine & Smelter) Hazemag, Krupp, Ibag, Lokomo, Joy Western Precipitation, Clyde Carruthers, UOP Aeromix, Wheelabrator, Standard Filterbau and Macawber International who all represent some of the best in equipment design for their respective fields. Particular mention here has to be given to the unique design experience our principal gained in the services of Clyde Carruthers during the mid 1970's when the company was contracted by Hamersley Iron to resolve their considerable fugitive dust control issues at their remote Tom Price and Paraburdoo minesite operations in the remote Pilbara region of Western Australia. It took three years. These efforts were recognised in 1977 when Hamersley Iron received a commendation from the Special Inspector of Mines for efforts and progress gained. It is this unique hands-on practical and proven experience that has resulted in the development of today's benchmark practice that have become the best known, emulated by many, but understood by few. This unique experience base with some of the driest ore types and in the one of the most environmentally unfriendly and difficult parts of the world complimented by full knowledge of the dynamics of impact crushing technology gained through training in Finland, Germany and Austria well complimented by the technology base attained earlier throughout Australasia places T&T Projects at the forefront of service providers internationally. Unaware to many in the field of dust control this technology together with that associated with pneumatic transfer systems provides the best understanding and appreciation for the dynamics and behaviour of airborne particulate matter. It is this unique knowledge base in combination that has enabled the company to pioneer and produce its specialised proven emission suppression systems and the best in large plant fugitive emission modelling. So, if your need is to resolve problems with modelling offsite emissions from the largest bulk solids handling operations including bulk storage and ship loading (coal through iron ore) excessive emissions from ROM ore bins particulate flow in feed hoppers, surge bins and feeder combinations for reasons of uneven flow, unacceptable wear or crushing chamber packing, cementation, etc. problems with excess induced air flow through mineral sands process plants (MSP's) and require design guidance fugitive emissions from vertical shaft autogenous grinding mills (commonly referred to as VSI’s) deficient ducted extraction systems solid particulate emissions from dynamic wet scrubbers excessive airflows and associated fugitive emissions through and from conveyor transfers excessive return strand emissions and possible deficiencies with belt cleaning Or you simply require a configuration audit of your plant (or detail design for your new plant) for compliance with best known practice - we have both the knowledge AND experience. Videos These In-Process© linked videos are of four fog cannons assemblies located at the four corners of a ROM dump hopper over a 54x74 Primary Gyratory crusher reducing lump copper ore down to <150 mm. Every time a truckload (150 ton) of rock is dumped into the hopper a huge volume of air is induced to move by the falling material and displaced from the bin. This volume of air (which is larger than the mass of material dumped) together with the entrained dust expelled from the collapsing ore mass in combination is displaced from the ROM bin hopper. The function of the fog cannons is to dominate air movements and flood the ROM bin with airborne wet fog and mist immediately before the ore is dumped. As the falling ore mass opens it injests the fog. When this mass of ore collapses on the sides and bottom of the ROM Bin the violent expulsion of air/dust from the ore mass results in a violent interaction between fog aerosols and an agglomeration of the dust followed by rapid precipitation of the heavier agglomerated particles within the hopper. Where ROM bin encapsulation is not viable these cannons constitute the most effective method for minimisation of open ROM bin airborne dust emissions and is an excellent example of BKP (best known practice) as it exists today. 03-2007