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30results about How to "Low heat loss" patented technology

Control system and method for automatically pushing steel into furnace of steel pushing type stepping heating furnace

The invention discloses a control system and method for automatically pushing steel into a furnace of the steel pushing type stepping heating furnace. The method comprises the following steps of waiting for steel pushing after a blank is centered at a blank waiting station; sending out a furnace door opening prompt if a stepping beam is in a lower position and an empty space in the furnace meets asteel pushing distance; opening a furnace door to a high position based on a furnace door opening command, and sending out a steel pushing prompt based on a position signal of the opened furnace door; pushing, by a steel pushing machine in a work waiting station based on a steel pushing command, the blank to advance to push the blank on a conveying roller way onto a fixing beam in the furnace; sending a reset command to the steel pushing machine after the steel pushing machine reaches the target position, and retracting the steel pushing machine to the work waiting station; and sending out afurnace door closing prompt after the steel pushing machine retracts to the work waiting station, performing, by the furnace door based on a furnace door closing command, closing action till the furnace door is completely closed. The furnace door is in an opened state only in the process of pushing the steel into the furnace, and the furnace door is in a closed state in the other time, so that theheat efficiency loss is greatly reduced.
Owner:新余钢铁股份有限公司

Dephosphorization method for oxygen top-blown converter slag remainder

The invention discloses a dephosphorization method for oxygen top-blown converter slag remainder. The dephosphorization method includes the steps that before slag-splashing for protection of a converter, a dephosphorization agent is added to the slag remainder in the converter after tapping, then inert gases are top-blown by an oxygen gun for the operation of slag-splashing for protection of the converter, and dephoshprized slag remainder serve as initial slag of the next melt of smelting. According to the method, the oxygen top-blown converter slag remainder operation is combined with the slag remainder dephosphorization process, the phosphorus content in the slag remainder can be lowered effectively, and the drag-in amount of phosphorus in the next melt of converter smelting process is lowered, so that the lime addition amount in the next melt of converter smelting process can be reduced, and the converter smelting cost is lowered. By the adoption of the dephosphorization method, part of the phosphorus element in the slag remainder in the converter can be removed, the slag amount is small in the smelting process, the heat loss is low, the iron loss is small, the converter slag dephosphorization effect is good, and the smelting cost is lowered remarkably.
Owner:TANGSHAN IRON & STEEL GROUP

Energy-saving environmentally friendly civil boiler

An energy-saving and environment-friendly civil boiler, comprising a left furnace body and a right furnace body, the left furnace body is a combustion furnace; the right furnace body is a heat exchange filter furnace; Connection; the combustion chamber is installed in the middle of the left furnace body, and the bottom end of the combustion chamber is equipped with a fire grate; the lower end of the fire grate is a slag chamber; the middle end of the right furnace body is equipped with a heat exchange chamber, and the upper end of the interior is equipped with a filter chamber, The bottom end of the right furnace body is supported by the support base; the heat exchange chamber and the filter chamber are connected through a smoke exhaust pipe with a smoke exhaust fan, and the right end of the smoke exhaust pipe is inserted into the filter chamber; the top of the filter chamber The flue gas discharge pipe is installed on the right side; the hot water inlet pipe and steam pipe are installed on the upper right side of the heat exchange chamber, and the hot water outlet pipe is installed on the lower right side of the heat exchange chamber. The invention not only can effectively utilize the heat energy produced by coal combustion, but also can effectively exchange and utilize the waste heat in flue gas generated after coal combustion, thereby reducing the heat loss rate.
Owner:HARBIN XINGYU RIVETING

Automatic push steel into furnace control system and method for push steel walking heating furnace

The invention discloses a control system and method for automatically pushing steel into the furnace of a pushing steel-type walking heating furnace. The method is as follows: after the billet is centered at the billet waiting position, wait for the steel to be pushed; if the walking beam is in the lower position, and When the vacancy in the furnace satisfies the steel pushing distance, a furnace door opening prompt is issued; the furnace door is opened to a high position based on the furnace door opening finger, and a steel pushing prompt is issued based on the position signal of the furnace door opening; the steel pushing machine in the working waiting position is based on the steel pushing command Push the billet forward, and push the billet on the conveying roller table to the fixed beam in the furnace; after the pusher reaches the target position, send a reset command to the pusher, and the pusher returns to the working waiting position; After reaching the working waiting position, a furnace door closing prompt is issued, and the furnace door performs a closing action based on the furnace door closing command until the furnace door is completely closed. The furnace door is only open when the steel is pushed into the furnace, and it is closed at other times, which greatly reduces the heat loss.
Owner:新余钢铁股份有限公司

Functional floor board with embedded cooling and heating pipe

Disclosed is a functional floor board with an embedded cooling and heating pipe. The functional floor board with the embedded cooling and heating pipe comprises a floor board body, an accommodating cavity and a floor heating pipe. The accommodating cavity is arranged on the side edge of the floor board body, the upper portion of one side edge end of the floor board body is protruded, and the bottom of the side edge end of the floor board body is provided with a longitudinal groove; the bottom of the other side edge end of the floor board body is protruded and is provided with a longitudinal groove; the longitudinal grooves correspond to each other vertically to form an integrated accommodating cavity; a one-side notch which is arranged inside a neighboring floor board defines a longitudinal snapping groove, and the floor heating pipe is horizontally arranged inside the longitudinal snapping groove. When one floor board is matched with the groove of a neighboring floor board on one side, the two neighboring floor boards form the internal accommodating cavity, the floor heating pipe is accommodated inside the internal accommodating cavity, so that the floor boards and the floor heating pipe are connected into a whole, further a floor heating function and a floor board function are integrated together, heat can be transferred to the floor boards directly through the floor heating pipes and energy losses of floor cooling and heating can be reduced.
Owner:郭兆军

Preheating device and method for heavy oil reservoir

The invention discloses a preheating device and method for a heavy oil reservoir. The preheating device includes an upper horizontal injection well and a lower horizontal production well which are arranged on a target position of a heavy oil reservoir to be preheated; an injection pipe of the upper horizontal injection well which is arranged in a vertical section of the upper horizontal injection well and is used for injecting a nanofluid into a horizontal section of the upper horizontal injection well; an electrical heating column of the upper horizontal injection well which is arranged in a horizontal section of the upper horizontal injection well and is used for electrically heating the injected nanofluid; an injection pipe of a lower horizontal production well which is arranged in a vertical section of the lower horizontal production well and is used for injecting a nanofluid into a horizontal section of the lower horizontal production well; an electrical heating column of a lower horizontal production well which is arranged in the horizontal section of the lower horizontal production well and is used for electrically heating the injected nanofluid. The technical scheme can improve the preheating efficiency and evenness of the heavy oil reservoir, can improve the use degree of the horizontal section, can reduce the operation cost and complexity of preheating, and can enlarge the application range of preheating.
Owner:PETROCHINA CO LTD
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