
INDIGENOUS PRODUCTION
OF
BIO MEDICAL & INDUSTRIAL
WASTE INCINERATORS
Environmental security is one of the prime concern of the world today. It can not be insured without effective waste management system. After implementation of new regulations of International Free Trade by World Trade Organization
(WTO), now there is a strong stress by the WTO to impose International Certification Rules i.e ISO9000 / ISO14000 for all the International Exports & Trade. This international certifications system shall further require a healthy & clean environment in the Industries, Institutions & Hospitals.
EFFORTS OF THE GOVERNMENT
Government of Pakistan has successfully moved towards implementation of WTO requirments for effective Waste Management System in Pakistan. In this regard one of the Prime Object was focused on providing safe and healthy environment to general public, institutional & industrial workers by controlling pollution, caused mainly by improper methods in disposal of infectious hospital wastes. Moreover the rapid spread of Hepatitis B & C infections has also initiated an alarming demand for incineration of Bio-Medical Waste in all the major hospitals of the country.
This task was assigned to Ministry of Health to arrange the appropriate & tested equipment for Incineration of the Bio-Medical infectious waste in the hospitals. It was determined that huge fund in foreign exchange (More then 20 Million $) are required to over come the problems. Therefore it was recommended to promote the ingenious manufacturing of best quality Incinerators locally, so that the wastage of foreign exchange on this equipment may be saved.
PROJECT OF BIO MEDICAL WASTE INCINERATORS
The project for INDIGENOUS PRODUCTION OF BIO MEDICAL & INDUSTRIAL WASTE INCINERATORS was assigned to Pakistan Council of Scientific & Industrial Research Laboratories
(PCSIR) Karachi by the Ministry of Science & Technology Islamabad who have, with the help of private collaboration, acquired a successful experience through the application of modern technology in the hospital waste incineration, with the results that under effective & controlled conditions the effluents discharged from incineration are no more injurious to the health of the people.
This achievement has provided an insight to the Scientist & Engineers of PCSIR and private collaborators like STRONGMAN, who have gained considerable experience in the field of incineration for the design and fabrication of such plants in various capacities according to the requirement of the hospitals and industries.
Therefore a project on private public partnership concept was approved from Ministry of Science & Technology with the aim for Transfer of Technology and Ingenious Manufacturing of Incinerators on commercial basis.
PRIVATE / PUBLIC SECTOR PARTNERSHIP
greement with STRONGMAN for Transfer of Technology and to moderate the design of prototype incinerator on commercial grounds. Under the guidelines and expertise of
PCSIR, STRONGMAN has developed incinerators of various capacities ranging from 25Kg/Hr to 300 Kg/Hr according to the bed strength of various hospitals or industries.
Now STRONGMAN has a line of most advanced Incinerators with capabilities for safe way of getting rid form any kind of waste from Hospitals or Industries.
WHAT IS INCINERATION?
Incineration has become increasingly important as a solution to the worlds waste disposal problems. Though the technology continues to improve, however incineration is most recommended and primary method of disposal in many industrialized countries. Unlike poorly planned land filling or ocean dumping, time has proved this machine more efficient than ever before.
HOW IT WORKS?
Incineration under effective and controlled process produces carbon dioxide, water vapor and ash as major by-products. Volume reduction is 93% - 96% of the waste burnt. The amount of fuel required to support combustion is determined by the combustibility of the waste itself. Fresh air is introduced in proper quantity to obtain the optimum temperature in the chamber. The ash that remains shall be free from all kind of infections.
CONSTRUCTION:
STRONGMAN incinerator is package type, all weather type and is mounted on a base frame for easy transportation. Incineration is batch type & waste feeding is manual. The incinerator has 2-chambers, primary chamber & secondary chamber. Both the primary and secondary are provided with the pressure jet burners for incineration of Bio-Medical & Industrial waste. General waste burning is carried out only in the Primary Chamber. The Primary Chamber is provided with the air pressure nozzles. Cyclone separator is provided and mounted on the base of frame, due to which burning archive is exhalent.
A dust proof pre-wired control panel housing with all safeties i.e. temperature control for Primary Chamber, Secondary Chamber and flue gas temperatures are provided. It also incorporates contactors; overload relays and MCB’s for electrical functions. Incase of defect in the process, the incinerator comes to a stand still and the faults indicated on the control panel. Suitable protection for burner is provided. Forced draft fan is mounted on the base frame of the incinerator to provide combustion of air for incineration of waste.
Waste charging door and ash removal door is provided on the incinerator. The incinerator is refectory lined and does not require any
civil work at site. Even the forced draft fan and the incinerator chambers need no civil works as they are mounted on a base frame.
COMPOSITION OF INSULATION AND REFRACTORY
Type and composition of thermal Microporous with high
Insulator Mgo 14% non conducting properties
| CaO |
6% |
| Fe2O3 |
7% |
| AL2O3 |
10% |
| SiO2 |
56% |
| K2O |
3% |
| TLO2 |
4% |
Type and composition of the refractory
Mgo
|
0,
5%Plastic concrete with
high mechanical, thermal
and abrasion resistance |
| CaO |
8% |
| Fe2O3 |
2, 5% |
| AL2O3 |
44% |
| SiO2 |
45% |
TECHNICAL SPECIFICATIONS
Incinerator is a controlled air, dual chamber thermal destruction unit. Waste loading is carried out manually into the unit via charge door. Incinerator controls are fully automatic; burners start and stop using automatic electronic controls set by the factory technician during installation. Standard operational routine of incinerator suggest; that the plant commence with 20 minutes warm up period each morning. The machine automatically controls the shutdown functions after the last cycle and can be re-activated next day after removal of ashes.
PRIMARY CHAMBERS
Primary chamber is sized according to the burning capacity of the incinerator. Primary chamber is equipped with one burner at suitable location. The waste is burned in combination of fresh air that is forced into the chamber thorough air-ports in the floor, precise air mixing allow the most effective heating in the pyrolysis furnace, which insures the complete decomposition of the waste. The amount of the air is determined by the physical properties of the waste. The unit is design to allow adjustment of both, volume and velocity of the air, which accelerate the overall efficiency of combustion. As the temperature raises inside the chamber, the burning action of the waste is more quick. A temperature controller is equipped in the chamber, once a fire begins, the primary burner switches OFF, leaving only the secondary burner “ON” to maintain the required temperature in the retention chamber. The chamber is lined with calcium silicate, insulation slab (2 inches. minimum) and hot face refectory castable (3 inches minimum).
SECONDARY CHAMBER
Incinerator is equipped with secondary combustion chamber to insure complete destruction of any partly burned flue gasses. The chamber is designed to have a minimum gaseous retention time 2 seconds with an operating temperatures ranges between 900o-1200o Celsius. The capacity of the burner is suitable to maintain the required temperature in this chamber. An additional air blower is provided for the secondary combustion chamber. Excess air in the chamber is given to ensure the complete combustion of the flue gasses. The secondary combustion chamber is also lined with 3 inches calcium silicate insulation slab and 3 inches hot face refractory.
BURNERS
Two burners are used, which are UL listed for positive off / reset operations. All burners consist of a blower, a motor with overload protection and electric spark ignition device. The burners are being controlled with the help of thermocouple and temperature controllers installed in the control penal.
GAS LINES
All gas lines are schedule 40 pipe. A main gas shut-off valve is used as safety, followed by branch shut-off valves, immediately ahead of each burner.
MOTORS & CONTROLS
All motors are totally enclosed and fan cooled. All electrical components are standard, (off the shelf items) that can be easily replaced when necessary. All motors and burners are fully automatic.
PAINTS
All exterior surfaces receive 2 standard coats of equipment grade heat resistant enamel.
WASTE BURNING CAPACITY Kg/Hr
| Model |
Type A
4700Kcal/Kg |
Type B
3600Kcal/Kg |
Type C
4700Kcal/Kg |
Type D
1400Kcal/Kg |
Type E
500Kcal/Kg |
Type F
Variable |
| BMW-50 |
16 |
27 |
35 |
25 |
14 |
17 |
| BMW-75 |
35 |
60 |
77 |
55 |
35 |
40 |
| BMW-100 |
50 |
70 |
85 |
65 |
45 |
53 |
| BMW-150 |
70 |
110 |
130 |
90 |
65 |
80 |
| BMW-200 |
110 |
135 |
185 |
136 |
100 |
140 |
| BMW-300 |
150 |
185 |
230 |
175 |
150 |
175 |
SMOKELESS ODORLESS
Model Primary Chamber Length Width Height Weight Height Incineration Capacity
| Model |
Primary Chamber |
Length |
Width |
Height |
Weight |
Height Incineration Capacity |
| BMW-25 |
|
|
|
|
|
|
| BMW-50 |
1 |
200 cm |
100 cm |
120 cm |
4000 Kg |
50 Kg |
| BMW-75 |
1.5 |
280 cm |
120 cm |
150 cm |
5500 Kg |
75Kg |
| BMW-100 |
2.50 |
325 cm |
150 cm |
180 cm |
6500 Kg |
100 Kg |
| BMW-150 |
3.75 |
400 cm |
180 cm |
200 cm |
7500 Kg |
150 Kg |
| BMW-200 |
|
|
|
|
|
|
| BMW-300 |
|
|
|
|
|
|
|