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Aluminium ( ingots, t bars, sows, rods), copper (cathodes, cakes, billets, ingots, rods), lead (ingots), nickel (cathodes both cut and uncut briquettes, pellets, discs, etc.), tin (ingots, etc.), zinc (ingots both regular size and jumbos), steel billets (all types including crc, hrc, hdgc, plates, sheets), concentrates and ores for above items including bauxite, manganese, clinker and iron ores etc), scraps of above items including hms 1&2 and steel scraps.

About Mini Blast Furnace A Mini Blast Furnace (commonly known as Mandir Bhatti or Shahi Bhatti) is a simple, time-tested and widely used system to produce secondary lead in India and many other countries. It is the most basic of all furnaces and a production system based on this technology has certain distinct characteristics such as: Low Project Capital Cost Low Energy Cost (wooden coke fired) Easy to install Easy to operate & maintain Production of low Antimony Lead (soft lead) at low temperature Generates high pollution Description of Mini Blast Furnace The Furnace itself is a modified blast furnace which consists of a brick lined structure with fire brick oven in the midst and a metal Exo-skeletal structure outside. Raw material & fuel (coke) is charged manually through the side metal doors fitted in the brick structure and air is provided from the FD fans provided at the back of the brick structure. Molten metal & slag is tapped at the pits made in front of the brick structure and flue gases are sucked from the top of the brick structure which is provided with a metallic hood. A typical Double Oven Mini Blast Furnace has the following standard sizes & specifications: Outside Dimensions of Brick Structure: 2400mm L x 1900mm W x 2400mm H No. of Ovens: 2 Nos. Oven Size Top Dia: 600mm Bottom Dia: 250mm Depth: 650mm No. of FD Fans: 2 Nos. (1 for each oven) FD Fan Capacity: 300cmh at 250mm of WG No. of Charging Doors: 2 Nos. (1 for each oven) Charging Door Dimensions: 1100mm H x 650mm W Advantages No consumables used other than Wooden Coke which is also used as Fuel Low Power Consumption Produces low Antimony Lead suitable for soft lead purposes Pollution can be controlled with minimum fugitive emissions Easy to install, operate & maintain Disadvantages Cannot recover 100% lead in the first operation Subsequent recovery of lead after first recovery consumes higher coke & manpower. Equipment cannot be scaled up for higher production capacities. Air Pollution Control System for Mini Blast Furnace Various types of lead present in used batteries, plates and paste of lead oxide are charged in the furnace. In addition to these, certain compounds of sulphur are also present in the batteries. When this material is heated in the presence of carbon, lead oxide is converted to lead. This conversion along with burning of fuel generates flue gases and fumes containing dust, dirt, oxides of lead, lead particles and other impurities etc. Hence, to meet various goals of maintaining employees' health, for factory environments as well as regulatory requirements, it becomes imperative to get high end Air Pollution Control Systems to be installed with the Mini Blast Furnaces.

Battery crushing and hydro separation Battery crushing and segregation plants are required for handling of large volume of battery scrap to feed smelting units. In this automated system, batteries of all sizes are loaded on conveyor and fed into hammer mill. Batteries are crushed into small pieces and particles are collected at the bottom of hammer mill in a container. The container is already filled with water solution of specific gravity. The plastic material floats on the top of water solution and lead bearing scraps settles at the bottom in the container. The plastic is removed from the top with the help of water jet system. The bottom of container is fitted with screw conveyor for discharge outlet for lead bearing scrap. The lead bearing scrap is conveyed through screw conveyor to a vibrating screen, where large particles are retained and collected. They are further dried and used as raw material for smelting unit. The fine particles at the bottom of container are kept in agitation and after that passed through filter press to form a cake. This cake is further dried and used as a raw material for smelting unit. The plastic material is collected, washed further for processing. The portion of waste water is taken into treatment plant and similar amount is replaced with fresh water. There are very few battery crushing and hydro separation units installed with corporate groups. It is not viable for small and medium scale units because of high capital investment. Gradually parties are interested to install battery crushing and hydro separation units since it is mandatory to have same for import of used batteries in india.

About Induction Melting Furnace Induction Melting Furnace is major steel producing technology using scrap & sponge iron (directly reduced iron) as main raw material. This technology contributes significant steelmaking capacity in secondary steel sector in India and abroad. It has Air Pollution Steel scrap comes from various sources and generally has contaminants/coating etc on it. When this scrap is heated contamination/coating etc. disintegrates from steel and comes out either as slag or becomes air borne, thus causing air pollution. The major source of Air Pollution is : 1. Dust & Dirt 2. Rust 3. Oil & Grease 4. Paint & Galvanized Iron 5. PVC Coated Steel Selection of Technology for Air Pollution Control Device The following technologies are usually adopted for Air Pollution Control System in Induction Furnace industry: a. Bag Filter Type System (Dry) b. Venturi Scrubber Type System (Wet) About Bag Filter Type System (Dry Process) Working of Equipment Bag Filter Type System 1. Suction Hood 2. Spark Arrestor: 3. Bag Filtration System : 4. ID Fan: 5. Stack (Chimney): Advantages: 1. Low Power Consumption 2. Dry System, No water pollution 3. No corrosion of metal except normal wear & tear 4. Suitable for dust pollution which are the major cause of pollution in induction furnace 5. Achieves desired characteristic of treated gases even for high dust load, as Efficiency of bag filters is very high 6. Low operation & maintenance cost Control Practices About Venturi Scrubber Type System (Wet Process) Working of Equipment Venturi Scrubber Type System 1. Suction Hood: 2. Ducts & Bends: 3. Venturi Scrubber: 4. ID Fan : 5. Stack (Chimney) : Advantages : 1 Low Floor Area 2 Can handle high temperature gases 3 Suitable for gas pollution such as SO , NO , etc. 2 x Disadvantages : 1 Higher Power Consumption to achieve desired standards 2 Generates Water Pollution 3 Material of Construction is prone to corrosion hence low life cycle 4 Choking of pipe, Nozzle and duct (near scrubber) due to Wet condition 5 Higher operation & maintenance cost 6 Can remove submicron particle only with very high pressure drop leading to still higher power consumption 7 Material of Construction is prone to corrosion hence low life cycle 8 Choking of pipe, Nozzle and duct (near scrubber) due to Wet condition 9 Higher operation & maintenance cost 10 Can remove submicron particle only with very high pressure drop leading to still higher power consumption.

About Steel re-Rolling Mill Steel Re-rolling is a major steel section and bar producing technology used in India and abroad. Since its inception in India with setting up of first re-rolling mill in Kanpur in 1928, this technology has contributed significant steelmaking capacity in secondary steel sector in India. Air Pollution Depending upon the fuel used in heating the furnace of a Steel Re-rolling Mill, the characteristics of flue gases may vary. For coal fired furnaces they may consist of gaseous as well as particulate pollutants. For oil or gas fired furnaces, these flue gases may consist of just gaseous pollutants. The flue gases may also be corrosive in nature. Selection of Technology for Air Pollution Control Device Selection of Technology for Equipment in an Air Pollution Control System in case of a Steel Re-rolling Mill depends upon the fuel to be used : a. Scrubber based System for Oil / Gas Fired Furnaces b. Cyclone and Scrubber based System for Coal Fired Furnaces About Scrubber based System for Oil / Gas Fired Furnaces Characteristics of Air Pollution Generated In Induction Furnace 1 Pollutants : Dust & Gases such as NO , SO , CO, Co x 2 2 2 Concentration : SPM - 1200-1500 mg/Nm (Maximum, in coal fired) 3 So - 800-1000 mg/Nm 2 4 NO - 20-50 mg/Nm x 5 Temperature : At Suction Point: 250-300 C 6 Nature of Dust : Slightly Sticky, Non Abrasive and Non Explosive Control Practices The control practice adopted in controlling air pollution in this industry mainly depends upon following parameters : 1 Dust/Gas Concentration at inlet 2 Discharge Standards 3 Temperature of Flue Gases 4 Nature of Pollutant i.e. Dust (Particulate) or Gaseous 5 Nature of Dust i.e. Sticky, Abrasive 6 Nature of Gases i.e. Corrosive, Non Corrosive Working of Equipment 1. Ducts & Bends : 2. Scrubber : 3. ID Fan : 4. Stack (Chimney) : About Cyclone and Scrubber based System for Coal Fired Furnace Working of Equipment 1. Ducts & Bends : 2. Cyclone : 3. Scrubber : 4. ID Fan : 5. Stack (Chimney) : Discharge Characteristics as Per Norms 1 Dust : Less than 150 mg/ Nm 2 Temp : Less than 80-100 C 3 Gases : Traces of SO , NO , Co , Co.

Air pollution control device for lead acid battery manufacturing units. Lead acid battery manufacturing consists of various stages which broadly involve (after producing or receiving lead oxide): •Paste mixing •Grid casting •Grid pasting & curing •Hydro setting, parting & enveloping •Stacking, grouping & intercell welding •Formation Exposure of workmen to lead during all or any of the processes outlined above exceeds the prescribed standards if appropriate equipment in this respect is not installed at any battery manufacturing unit. All of the above processes, some more than others, involve release of lead particles or fumes into the environment. Pollution from the above processes can be grouped into two possible types, viz: •Lead oxide becomes airborne and there is particulate pollution •Fumes are generated and there is gaseous pollution While first five of the above listed broad stages fall in the ambit of particulate pollution, last one is the cause for gaseous pollution. Of those classified under particulate pollution, only paste mixing & grid pasting are the major source of the same. To control the pollution generated in these operations, suitable air pollution control device are to be installed. These are commonly also called ventilation systems or fumes extraction systems etc. They have to be selected based on many factors which include: •Size of the operations •Physical layout of the unit •Relative location of different points of generation of pollution •Particular processes to be covered Broadly, on the basis of nature of pollutants involved, the air pollution control device can be dealing with non-corrosive or corrosive gas streams. They are hence, designed accordingly.

Can be cater made to suit requirement at Constructions ( Plumbing and Roofing), Foundation ( Shock observer), Copper Recovery Refineries, Ferrous Tank Linings and for Radiation protection ( Hospitals and Nuclear plants)

Lead smelting-recycling plants, air and water pollution control devices.

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we have a good quality lead slag containing 30%Pb contain 10 to 15 % metal. Quantity 2000 ton per month.

Cast iron skulls, cast iron borings and turnings, steels skulls, eaf skulls, plate iron, mill scale, metal scrap, incinerated scrap (e46).