CN210038551U - Natural gas reduction copper oxide liquid flow control device - Google Patents

Natural gas reduction copper oxide liquid flow control device Download PDF

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Publication number
CN210038551U
CN210038551U CN201921090294.6U CN201921090294U CN210038551U CN 210038551 U CN210038551 U CN 210038551U CN 201921090294 U CN201921090294 U CN 201921090294U CN 210038551 U CN210038551 U CN 210038551U
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valve
natural gas
flow control
kiln
flow
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CN201921090294.6U
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Chinese (zh)
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姜成永
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Nanjing Xinde Gas Application Technology Co Ltd
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Nanjing Xinde Gas Application Technology Co Ltd
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Abstract

The utility model discloses a natural gas reduction copper oxide liquid flow control device, including surge tank, kiln detecting element, flow control valves and electrical system, kiln detecting element is located the kiln inside and is connected with electrical system, and surge tank input is connected with the natural gas air supply, and the output is connected with flow control valves, and electrical system includes information acquisition module, central processing module, valves control module, display module, alarm module, organizes through flow valve and realizes natural gas flow control. The utility model scientifically controls the natural gas flow entering the copper smelting furnace by detecting the copper oxide content information in the kiln and the internal temperature, pressure and other information of the gas circuit, thereby ensuring the safety and realizing the thoroughness of natural gas reduction without using wood for secondary reduction in the later stage of reduction; meanwhile, the temperature of the flexible connection of the gas path pipeline and the metal pipe is cooled by controlling the flow of the natural gas, and the service life of the gas path pipeline is effectively prolonged.

Description

Natural gas reduction copper oxide liquid flow control device
Technical Field
The utility model relates to a natural gas reduction copper oxide liquid flow control device belongs to copper smelting technical field.
Background
When natural gas is generally used for copper smelting reduction, because the temperature in the kiln is high (generally between 1120 ℃ and 1250 ℃), when a reduction metal tube is inserted into a copper smelting kiln for reduction, the flow rate of the natural gas in the smelting kiln needs to be strictly controlled, and when the content of copper oxide in copper liquid in the later stage of smelting is low, if the flow rate of the natural gas is too high, redundant natural gas which does not participate in reaction is released into the kiln, so that the danger of explosion is caused; if the natural gas flow is too small, the temperature of the metal reduction pipe cannot be taken away by the natural gas with high flow speed, so that the metal pipe is softened due to too high temperature, and the service life of the metal pipe is greatly influenced.
Because the flow velocity of the natural gas in the reduction process is smelted to current natural gas copper can't accurate control, the producer can stop the natural gas reduction in the later stage of the natural gas reduction in order to guarantee safe production, adopts timber to carry out secondary reduction even to influence the effect that the copper was smelted greatly. Therefore, a device for accurately controlling the flow rate of the natural gas in the reduction process is needed in the field of natural gas copper smelting so as to ensure the safe and smooth operation of the copper smelting process.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved by the utility model
For solving the problem that the natural gas reduction among the prior art is not thorough, the reduction process does not have natural gas flow control, the utility model provides a natural gas reduction copper oxide liquid flow control device.
Technical scheme
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a natural gas reduction copper oxide liquid flow control device, includes surge tank, kiln check element, flow control valves and electrical system, and kiln check element is located the kiln inside and is connected with electrical system, and the surge tank input is connected with the natural gas air supply, and the output is connected with flow control valves, and flow control valves is connected with electrical system, and electrical system includes information acquisition module, central processing module, valves control module, display module, alarm module.
Further, the flow control valve group comprises a butterfly valve 1, a filter, a flame arrester, a safety cut-off valve, a butterfly valve 2, a bypass cut-off valve, a pressure transmitter, a temperature transmitter, a flowmeter, a flow control valve, a one-way valve 1 and a one-way valve 2; the system comprises a butterfly valve 1, a filter, a flame arrester, a safety cut-off valve, a butterfly valve 2, a pressure transmitter, a temperature transmitter, a flowmeter, a flow regulating valve and two one-way valves which are sequentially connected through a gas circuit, wherein a bypass cut-off valve is positioned on a bypass of the gas circuit of the butterfly valve 1, the filter, the flame arrester, the safety cut-off valve and the butterfly valve 2, and the one-way valve 2 is positioned on the bypass of the gas circuit of the one-way; the safety cut-off valve, the pressure transmitter, the temperature transmitter, the flowmeter and the flow regulating valve are connected with an electric control system.
Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
the utility model discloses a detect information such as copper oxide content information and the inside temperature of gas circuit, pressure in the kiln and carry out scientific control to the inside natural gas flow that gets into copper smelting furnace, realized the thoroughness that the natural gas reduced when guaranteeing safety, need not to use timber secondary at the reduction later stage to reduce.
The utility model discloses a control natural gas flow and velocity of flow have effectively cooled the temperature that gets into gas circuit pipeline flexible coupling and the inside tubular metal resonator of kiln, have effectively improved life.
The utility model discloses full automated control has been realized to the device, reduces the work load among the reduction process, and easy operation is clear, simple structure, easily realization and using widely.
Drawings
FIG. 1 is a diagram showing the components and connection relationship of the device of the present invention;
fig. 2 is a connection diagram of the control valve assembly and the electric control system of the present invention.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
As shown in fig. 1, the input end of the surge tank of the flow control device is connected with a natural gas source, the output end of the surge tank is connected with the flow control valve group, and the surge tank plays a role of stabilizing the pressure of inlet gas, so that the natural gas entering the flow control valve group has stable pressure; the kiln detection element can be a spectrum analyzer or other elements capable of detecting the oxygen content in the copper liquid, is positioned in the copper smelting kiln and is connected with the electric control system, and is mainly used for detecting the copper oxide content information in the copper liquid in the kiln and transmitting related data to the electric control system, and the electric control system controls the flow control valve group according to the copper oxide content information to adjust the natural gas flow; the flow control valve group is connected with the electric control system and transmits the current natural gas temperature, pressure, flow and other related information to the electric control system.
The electric control system comprises an information acquisition module, a central processing module, a valve group control module, a display module and an alarm module, wherein the information acquisition module is used for acquiring related information such as the temperature, the pressure and the flow of natural gas in a current gas path and the content of copper oxide in copper liquid in the kiln; the central processing module performs calculation conversion on the current natural gas information to obtain the standard flow at 0 ℃ under the standard atmospheric pressure; the valve group control module controls corresponding valves in the flow control valve group to realize the control of the natural gas flow; the display module is mainly used for displaying the current natural gas flow, flow rate and other related information and providing an interface for manual parameter setting; when a certain valve in the control valve group is not opened or closed in place, the temperature and the pressure of natural gas are too high or too low, the flow rate reaches an alarm value, and the like, the alarm module gives an alarm.
The connection relationship between the flow control valve group and the electric control system is shown in fig. 2, wherein the filter is mainly used for filtering particles such as iron slag, dust and the like in the gas path pipeline; the flame arrester prevents the gas source from exploding due to the tempering of the natural gas; the safety shut-off valve is used for shutting off the gas source when the system is abnormal, so as to ensure safety; butterfly valve 1 and butterfly valve 2 are located the both ends of above-mentioned subassembly gas circuit, and the bypass stop valve is located the bypass of butterfly valve 1-filter-spark arrester-safety cut-off valve-butterfly valve 2 gas circuit, closes under the normal condition, when having any relevant component to need the maintenance in above-mentioned gas circuit, closes both sides butterfly valve 1 and butterfly valve 2, opens the bypass stop valve and makes the natural gas pass through from the bypass, guarantees that normal production goes on.
The temperature transmitter transmits the temperature information of natural gas in the pipeline, the pressure transmitter transmits the pressure information, and the flowmeter transmits the flow information to the electric control system, the central processing module of the electric control system performs temperature and pressure compensation calculation of natural gas flow, and the flow is converted into standard flow at 0 ℃ and 1 standard atmospheric pressure. Meanwhile, when the temperature and the related data detected by the pressure transmitter are too high or too low, the electronic control system gives an alarm and closes the safety shut-off valve of the control valve group; the electric control system controls the flow regulating valve to increase or decrease the flow of the natural gas output to the copper smelting furnace according to the standard flow information under the current working condition calculated in the process; the check valve 1 and the check valve 2 in the check valve group ensure that the outflow natural gas only flows out but not in, thereby preventing the natural gas from tempering, and the natural gas in the gas path finally enters the kiln copper liquid for reduction through the pipeline flexible connection and the reduction metal pipe.
By adopting the flow control device of the utility model, the arrangement of the spectrum analyzer or other copper liquid oxygen content detecting elements in the kiln can reflect the amount of the copper oxide which is not reduced currently in real time, so that enough natural gas supply can be ensured at the later stage of copper liquid reduction, and the copper liquid discharged from the kiln can be completely reduced as much as possible; meanwhile, the gas supply in the reduction process is scientifically controlled through the electric control system, so that the sufficient natural gas flow is kept in the gas circuit, and the temperature of the gas circuit pipeline flexible connection and the temperature of the metal pipe in the kiln are effectively cooled while the safety is ensured.
Meanwhile, the display module of the electric control system of the device supports manual setting of corresponding natural gas flow and flow rate information on a parameter setting interface, and the device can be automatically adjusted according to preset parameters during working, so that automatic control of flow is realized, and workload is reduced.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (2)

1. A natural gas reduction copper oxide liquid flow control device is characterized by comprising a pressure stabilizing tank, a kiln detection element, a flow control valve bank and an electric control system;
kiln detecting element is located the kiln inside and is connected with electrical system, the surge tank input is connected with the natural gas air supply, the output with flow control valves connects, flow control valves with electrical system connects, electrical system includes information acquisition module, central processing module, valves control module, display module, alarm module.
2. The natural gas copper oxide reduction liquid flow control device according to claim 1, wherein the flow control valve set comprises a butterfly valve 1, a filter, a flame arrester, a safety cut-off valve, a butterfly valve 2, a bypass cut-off valve, a pressure transmitter, a temperature transmitter, a flow meter, a flow control valve, a check valve 1 and a check valve 2;
the butterfly valve 1, the filter, the flame arrester, the safety cut-off valve, the butterfly valve 2, the pressure transmitter, the temperature transmitter, the flowmeter, the flow regulating valve and the two check valves are sequentially connected through a gas circuit, the bypass cut-off valve is positioned on a bypass of the gas circuit of the butterfly valve 1, the filter, the flame arrester, the safety cut-off valve and the butterfly valve 2, and the check valve 2 is positioned on a bypass of the gas circuit of the check valve 1;
the safety shut-off valve, the pressure transmitter, the temperature transmitter, the flowmeter and the flow regulating valve are connected with the electric control system.
CN201921090294.6U 2019-07-12 2019-07-12 Natural gas reduction copper oxide liquid flow control device Active CN210038551U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921090294.6U CN210038551U (en) 2019-07-12 2019-07-12 Natural gas reduction copper oxide liquid flow control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921090294.6U CN210038551U (en) 2019-07-12 2019-07-12 Natural gas reduction copper oxide liquid flow control device

Publications (1)

Publication Number Publication Date
CN210038551U true CN210038551U (en) 2020-02-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921090294.6U Active CN210038551U (en) 2019-07-12 2019-07-12 Natural gas reduction copper oxide liquid flow control device

Country Status (1)

Country Link
CN (1) CN210038551U (en)

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