A carbon baking furnace has at least one vertical baking shaft with a system and method for positioning green carbon bodies to be baked at the top of the vertical baking path and ringing the green carbon bodies with a sacrificial medium such as packing coke. The disclosure provides a system and method for controlling the delivery and removal of the sacrificial medium used to surround the carbon bodies within the baking paths. A volatile extraction system and method are provided. A system and method for unloading baked carbon bodies is disclosed.

Disclosed in the present application is a cooling system for a reflow furnace, the reflow furnace comprising a heating zone, and the cooling system being used to regulate a temperature of the heating zone, the cooling system comprising: at least one gas inlet and at least one gas discharge port, the at least one gas inlet and the at least one gas discharge port being disposed on the heating zone; a blowing apparatus; at least one gas intake pipeline, an inlet of the at least one gas intake pipeline being connected to the blowing apparatus, an outlet of the at least one gas intake pipeline being connected to the at least one gas inlet, the at least one gas intake pipeline being able to controllably establish fluid communication between the blowing apparatus and the at least one gas inlet; and at least one gas discharge pipeline, an inlet of the at least one gas discharge pipeline being connected to the at least one gas discharge port, an outlet of the at least one gas discharge pipeline being connected to the outside, and the at least one gas discharge pipeline being able to controllably establish fluid communication between the at least one gas discharge port and the outside. The cooling system of the present application can shorten the time taken for the reflow furnace to change from a higher heating temperature to a lower heating temperature.

Systems and processes for external combustion air preheating for providing preheated combustion air to a furnace. The furnace systems convective heating section includes multiple heating coils for waste heat recovery. The heating coils may be used for preheating a feed (feed preheat coils), heating a boiler feed water, superheating steam, or heating or superheating a feed stream prior to the feed being fed to the radiant coil. The waste heat in the combustion gas is also used to heat a heat transfer fluid, which may be used to pre-heat combustion air or for other purposes within the plant.

A system for making oxide material may comprise a preheating cyclone stage for receiving a solid carbonate material and operating at a temperature less than a calcination temperature of the solid carbonate material, a calcination cyclone stage for heating the preheated solid carbonate material and operating at a temperature of at least the calcination temperature to convert the preheated solid carbonate material to a solid oxide material and carbon dioxide gas, a cooling cyclone stage for cooling the solid oxide material and operating at a temperature less than the calcination temperature to cool the solid oxide material to ambient temperature, a first recirculating system to extract and recirculate a first gas from an outlet of the calcination cyclone stage to an inlet of the calcination cyclone stage zone, and a second recirculating system to extract and recirculate a second gas from the cooling cyclone stage to the preheating cyclone stage.

The present invention provides a powder-material flying melting furnace having dual regenerative chambers, which can be widely used in the fields of glass production, iron-making, non-ferrous metal smelting and solid fuel gasification. In the powder-material flying melting furnace having dual regenerative chambers of the present invention, a blow gas inlet is provided in a common feed pipeline or a raw material feeding pipeline, a forced feeding equipment is arranged on the feed inlets, and the raw material feeding pipeline is configured to be a movable feeding pipeline, such that the melts can be effectively prevented from being condensed and bonded on the inner walls of the feeding inlets.

A heat exchange system for transferring heat energy to control the temperature of a building, comprising a first heat exchanger for transferring thermal energy between waste water and a first water supply, a second heat exchanger connected to the first heat exchanger for transferring heat energy between the thermally treated first water supply and a second water supply, and a heat pump operatively arranged to supply the first water supply to the first heat exchanger, fluidly arranged between the building and the first heat exchanger, and fluidly arranged between the building and the second heat exchanger.

Waste heat recovery in an ammonia-based desulfurization and decarbonization system. The heat in the decarbonization system may be removed by using the heat of the process gas before desulfurization. The process gas before desulfurization may heat an intermediate medium through a gas heat exchanger. The intermediate medium may drive a refrigerator for refrigeration. A refrigerant may obtain the cooling capacity and may then cool the decarbonized process gas through a liquid-liquid heat exchanger.

The present application describes an industrial calciner for particulate material, wherein the industrial calciner comprises: a calcination vessel; and a gas supply system in fluid communication with the calcination vessel, the gas supply system configured to supply a flow of calcination gas to the calcination vessel, wherein the industrial calciner further comprises at least one electric heater configured to heat the calcination gas, the industrial calciner further comprising at least one humidity modifier and a humidity control system for controlling the output of the at least one humidity modifier. Use of the industrial calciner and a method of calcining particulate material with the industrial calciner are also described.

Techniques for utilizing excess heat generated by an oven to generate electricity are provided. In one example, an oven can comprise a coolant pathway positioned adjacent to a hollow space within the oven, wherein the hollow space can contain heat. The oven can also comprise a chamber in fluid communication with the coolant pathway. The oven can further comprise a turbine in fluid communication with the chamber and an outlet. Moreover, the oven can comprise a generator connected to the turbine, wherein rotation of the turbine can power the generator.

A device for preheating rod-like, metal workpieces, in particular aluminium rods, by means of a fluid flow heated by residual heat or waste heat of a combustion process occurring in a heating device for heating the workpieces. The device has a preheating chamber for receiving at least one workpiece, wherein, in order to transfer the heat from the fluid flow to a heat transfer medium flow in a fluid flow line between a fluid flow connection and the preheating chamber, a heat-exchanger unit is provided in such a way that the workpiece is preheated indirectly via the heat transfer medium flow heated in the heat-exchanger unit by the fluid flow.