CN112129111B

CN112129111B - Metallurgical furnace, cooling system, control method, readable storage medium, and electronic device

Info

Publication number: CN112129111B
Application number: CN202010818490.1A
Authority: CN
Inventors: 陈丽萍; 薛昊洋
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2022-06-21
Anticipated expiration: 2040-08-14
Also published as: CN112129111A; CN114857941A

Abstract

The invention provides a cooling system for a metallurgical furnace, which comprises a water supply main pipe, a plurality of water supply branch pipes, a cooling jacket, a plurality of confluence pipelines, an inspection pipeline and a plurality of return pipelines. Each water supply branch pipe is communicated with the water supply main pipe. The cooling jacket comprises a plurality of cooling pipelines which are communicated with the water supply branch pipes in a one-to-one correspondence manner. The inspection pipeline comprises an inspection main pipe and a plurality of inspection branch pipes, a first detection device is arranged on the inspection main pipe, and a first end of each inspection branch pipe is connected with the inspection main pipe. The first end portions of the plurality of return lines are in one-to-one correspondence with the plurality of cooling lines, and the second end portion of each return line is switchably provided between a confluence state and a detection state. The cooling system for the metallurgical furnace has the advantages of simple structure, low cost, convenience in installation and maintenance and the like, and can be used for carrying out regional detection and control on the metallurgical furnace, so that more accurate cooling on different regions of the metallurgical furnace is realized.

Description

Metallurgical furnace, cooling system, control method, readable storage medium, and electronic device

Technical Field

The invention relates to the field of metallurgical furnace cooling, in particular to a cooling system for a metallurgical furnace, the metallurgical furnace, a zone cooling control method for the metallurgical furnace, a computer readable storage medium and an electronic device.

Background

At present, in the field of nonferrous metallurgy, the cooling modes of a metallurgical furnace mainly comprise natural air cooling, forced ventilation cooling, surface spray cooling and water jacket cooling. Of which the cooling means of water jacket cooling is most widely used.

However, in the actual operation process, the cooling liquid pipeline is abnormal (such as leakage of cooling liquid, water cut-off of cooling system, insufficient water supply of cooling liquid, etc.), which can cause serious safety accidents, resulting in production stop and even casualties. Therefore, the government regulatory department puts mandatory requirements on the temperature, flow and pressure alarm devices of the cooling system of the smelting furnace. In the related art, a detection device is mostly directly arranged on a return pipeline, and whether cooling liquid leakage occurs or not is judged according to the recovery flow. However, as the number of the return pipelines is large, even hundreds, a large number of detection devices need to be purchased, so that the equipment cost is increased, and the maintenance difficulty is increased. And the dense arrangement of the return pipes increases the installation difficulty of the detection device.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, embodiments of the present invention propose a cooling system for a metallurgical furnace.

According to an embodiment of an aspect of the invention, a cooling system for a metallurgical furnace comprises: a water main; a plurality of water supply branch pipes, each of which communicates with the water supply main pipe; the cooling jacket comprises a plurality of cooling pipelines which are communicated with the water supply branch pipes in a one-to-one correspondence manner; a plurality of conflux lines; the inspection pipeline comprises an inspection main pipe and a plurality of inspection branch pipes, wherein a first detection device is arranged on the inspection main pipe, and the first end part of each inspection branch pipe is connected with the inspection main pipe; and the first end parts of the return pipelines are communicated with the cooling pipelines in a one-to-one correspondence manner, each second end part of each return pipeline is arranged between a confluence state and a detection state in a switchable manner, the second end parts of the return pipelines in the confluence state are connected with the first end parts of the confluence pipelines in a one-to-one correspondence manner, and the second end parts of the return pipelines in the detection state are connected with the second end parts of the branch inspection pipelines in a one-to-one correspondence manner.

According to the cooling system for the metallurgical furnace, the second end part of the return pipeline is arranged in a switchable mode between the confluence state and the detection state, so that the cooling liquid in the return pipeline can be led into the inspection main pipe through the inspection branch pipe for detection. Therefore, only the first detector is arranged on the routing inspection header pipe, the cooling liquid in the return pipelines can be detected respectively, the first detector is not required to be arranged on each return pipeline, the purchase and maintenance cost of the detection element (the first detector) is greatly reduced, and the maintenance of the detection element by an operator is facilitated. In addition, the first detector is not required to be arranged on the return pipeline, so that the arrangement of the return pipeline is convenient.

Therefore, the cooling system for the metallurgical furnace provided by the embodiment of the invention has the advantages of simple structure, low cost, convenience in installation, convenience in maintenance and the like.

In addition, the cooling system according to the invention has the following additional technical features:

in some embodiments, the inspection branch pipe further comprises a plurality of flow direction control elements, each flow direction control element has an inlet, a first outlet and a second outlet, the inlet is switchably communicated with one of the first outlet and the second outlet, the inlets are communicated with the second ends of the plurality of return pipes in a one-to-one correspondence, the first outlets are communicated with the first ends of the plurality of confluence pipes in a one-to-one correspondence, the second outlets are communicated with the second ends of the plurality of inspection branch pipes in a one-to-one correspondence, and optionally, the flow direction control element is a three-way solenoid valve.

In some embodiments, a second detection device is disposed on the water supply main, optionally, the first detection device includes a first temperature detector, a first flow detector and a first pressure detector, and the second detection device includes a second temperature detector, a second flow detector and a second pressure detector.

In some embodiments, the water supply system further comprises a plurality of water supply branch pipes, a first end of each water supply branch pipe is communicated with the water supply main pipe, a first flow regulating valve is arranged on each water supply branch pipe, wherein a plurality of water supply branch pipes form a plurality of water supply branch pipe groups, each water supply branch pipe group comprises a plurality of water supply branch pipes, the plurality of water supply branch pipe groups are communicated with second ends of the plurality of water supply branch pipes in a one-to-one correspondence manner, a first end of each water supply branch pipe is communicated with the second end of the corresponding water supply branch pipe, optionally, a second flow regulating valve is arranged on each water supply branch pipe, optionally, the first flow regulating valve is an electric valve or a pneumatic valve, optionally, the second flow regulating valve is a manual valve, an electric valve, an electromagnetic valve or a pneumatic valve, optionally, a third detection device is arranged on each water supply branch pipe, optionally, the third detecting means comprises a third flow detector.

In some embodiments, it includes a plurality of to patrol and examine the pipeline and manage, and is a plurality of patrol and examine the branch pipe group that constitutes a plurality of branch of patrolling and examining, every patrol and examine the branch pipe group including a plurality of patrol and examine the branch pipe, it is a plurality of patrol and examine house steward one-to-one ground with a plurality of patrol and examine the branch pipe group and link to each other, every patrol and examine the first end of branch pipe and corresponding patrol and examine the house steward and link to each other, wherein it is a plurality of the return line constitutes a plurality of return line group, every the return line group includes a plurality of the return line, and is a plurality of the return line group is with a plurality of water supply branch pipe group one-to-one, and is a plurality of the return line group is with a plurality of patrol and examine the branch pipe group one-to-one.

In some embodiments, the water distribution device further comprises a plurality of water distribution grooves, the plurality of water distribution grooves are communicated with the second ends of the plurality of water supply branch pipes in a one-to-one correspondence manner, and the first end of each water supply branch pipe is communicated with the corresponding water distribution groove; the device further comprises a water collecting tank, wherein the second end part of each confluence pipeline is connected with the water collecting tank, and the inspection pipeline is connected with the water collecting tank.

In some embodiments, the number of the return pipes is equal to the number of the water supply branch pipes, and the return pipes communicate with the water supply branch pipes in a one-to-one correspondence.

In some embodiments, further comprising a control system, the control system comprising: the inspection control module is connected with each flow direction control element and is used for controlling the inlet of each flow direction control element to be in switchable communication with one of the first outlet and the second outlet; the analysis module is connected with the first detection device and the second detection device and is used for analyzing the detection data of the first detection device and the second detection device; and the flow control module is connected with the analysis module and the first flow regulating valve and is used for controlling the flow of the water supply branch pipe.

In some embodiments, the control system further comprises: the communication module is used for collecting the working condition information of the metallurgical furnace and transmitting the working condition information to the analysis module; and the receiving module is used for receiving the detection data of the first detection device and the second detection device and transmitting the detection data to the analysis module, optionally, the control system further comprises an alarm module, and the alarm module is connected with the analysis module.

In another aspect, an embodiment of the present invention provides a metallurgical furnace including a cooling system, comprising: a furnace body; and the cooling system is provided by an embodiment of the invention, and the cooling jacket is installed in the furnace body.

In yet another aspect, the present invention provides a method for controlling cooling of a metallurgical furnace in a partitioned manner, where the metallurgical furnace is the metallurgical furnace according to another aspect, where a plurality of cooling pipelines form a plurality of cooling pipeline groups, each cooling pipeline group includes a plurality of cooling pipelines, a plurality of water supply branch pipe groups correspond to the plurality of cooling pipeline groups one to one, a plurality of return pipeline groups correspond to the plurality of cooling pipeline groups one to one, the cooling jacket includes a plurality of cooling areas, the plurality of cooling areas correspond to the plurality of cooling pipeline groups one to one, the furnace body includes a plurality of furnace body functional areas, and the plurality of furnace body functional areas correspond to the plurality of cooling areas one to one; the control method comprises the following steps: detecting the temperature of each return pipeline group by using the first detection device so as to obtain the average temperature value of each return pipeline group; comparing the average temperature value of each of the return line groups with a first temperature setting value corresponding to the return line group, when the average temperature value of the return line group is equal to or greater than the corresponding first temperature setting value, determining that the flow rate of the cooling liquid in the cooling line group corresponding to the return line group is insufficient, increasing the flow rate of the cooling liquid in the water supply line group corresponding to the return line group so as to increase the flow rate of the cooling liquid in the cooling line group corresponding to the return line group, when the average temperature value of all the return line groups is equal to or greater than the corresponding first temperature setting value, determining that the flow rate of the cooling liquid in the water supply main is insufficient, increasing the flow rate of the cooling liquid in the water supply main so as to increase the flow rate of the cooling liquid in each of the cooling line groups, the first temperature set value is determined according to the temperature of the cooling liquid in the water supply main pipe detected by the second detection device and the cooling intensity requirement information of the furnace body functional area corresponding to the return pipeline group, and the cooling intensity requirement information of the furnace body functional area is determined according to the working condition information of the metallurgical furnace; and/or comparing the rising rate of the temperature average value of each of the return line groups with a first temperature change set value corresponding to the return line group, when the rising rate of the temperature average value of the return line group is greater than or equal to the corresponding first temperature change set value, determining that the flow rate of the cooling liquid in the cooling line group corresponding to the return line group is insufficient, increasing the flow rate of the cooling liquid in the water supply branch pipe corresponding to the return line group so as to increase the flow rate of the cooling liquid in the cooling line group corresponding to the return line group, and when the rising rates of the temperature average values of all the return line groups are greater than or equal to the corresponding first temperature change set value, determining that the flow rate of the cooling liquid in the water supply main is insufficient, increasing the flow of cooling liquid within the water supply header so as to increase the flow of cooling liquid within each of the cooling line sets.

In some embodiments, the control method further includes detecting the pressure of each return line set by using the first detection device, and further obtaining an average value of the pressure of each return line set; comparing the average pressure value for each of the return line sets with a first pressure set point corresponding to the return line set, when the average pressure value of the return line group is less than or equal to the corresponding first pressure set value, determining that the flow rate of the cooling liquid in the cooling pipe group corresponding to the return pipe group is insufficient, increasing the flow rate of the cooling liquid in the water supply branch pipe corresponding to the return pipe group, so as to increase the flow rate of the cooling liquid in the cooling line group corresponding to the return line group, when the average pressure value of all the return line sets is less than or equal to the corresponding first pressure set value, judging that the flow of the cooling liquid in the water supply main is insufficient, and increasing the flow of the cooling liquid in the water supply main so as to increase the flow of the cooling liquid in each cooling pipeline group; and/or comparing the rate of decrease of the pressure average value of each of the return line groups with a first pressure change set value corresponding to the return line group, when the rate of decrease of the pressure average value of the return line group is equal to or greater than the first pressure change set value, determining that the flow rate of the cooling liquid in the cooling line group corresponding to the return line group is insufficient, increasing the flow rate of the cooling liquid in the water supply branch pipe corresponding to the return line group so as to increase the flow rate of the cooling liquid in the cooling line group corresponding to the return line group, and when the rate of decrease of the pressure average value of all the return line groups is equal to or greater than the first pressure change set value, determining that the flow rate of the cooling liquid in the water supply main is insufficient, increasing the flow of cooling liquid within the water supply header so as to increase the flow of cooling liquid within each of the cooling line groups.

In some embodiments, the control method further includes detecting, by the first detecting device, a flow rate of each of the return lines of each of the return line groups, thereby obtaining a flow rate of each of the return line groups; and comparing the flow rate of each return pipeline group with the flow rate of the water supply branch pipe corresponding to the return pipeline group, and determining that the return pipeline group is in an abnormal state when the ratio of the flow rate of the return pipeline group to the flow rate of the water supply branch pipe corresponding to the return pipeline group is less than or equal to a first threshold value.

In some embodiments, the control method further comprises comparing the temperature of each of the return lines with a second temperature set point corresponding to the return line, and recording the number of the return lines when the temperature of the return line is greater than or equal to the corresponding second temperature set point; and/or comparing the rising rate of the temperature of each return pipeline with a second temperature change set value corresponding to the return pipeline, and recording the number of the return pipeline when the rising rate of the temperature of the return pipeline is greater than or equal to the corresponding second temperature change set value.

In some embodiments, the control method further includes comparing a decrease rate of the pressure of each of the return lines with a second pressure change set value corresponding to the return line, and when the decrease rate of the pressure of the return line is greater than or equal to the corresponding second pressure change set value and the decrease rates of the pressures of the other return lines belonging to the same return line group as the return line are less than the corresponding second pressure change set value, determining that a leakage point exists in the cooling line corresponding to the return line, sending an alarm signal, and storing the alarm information in historical data.

In some embodiments, the control method further includes comparing the flow rate of each of the return lines with a flow rate set value corresponding to the return line, when the ratio of the flow rate of the return line to the flow rate set value is less than or equal to a second threshold value, determining that a leakage point exists in the cooling line corresponding to the return line, sending an alarm signal, and storing the alarm information in historical data; and/or comparing the flow rate of each return pipeline with a flow change set value corresponding to the return pipeline, when the flow rate of the return pipeline is greater than or equal to the corresponding flow change set value, judging that a leakage point exists in the cooling pipeline corresponding to the return pipeline, sending an alarm signal, and storing the alarm information in historical data.

Another aspect of the present invention provides a method for zone cooling control in a metallurgical furnace, the metallurgical furnace including a cooling jacket including a plurality of cooling lines, the plurality of cooling lines forming a plurality of cooling line groups to form a plurality of cooling zones, each cooling line group including a plurality of cooling lines; the furnace body of the metallurgical furnace is provided with a plurality of furnace body functional areas, and the plurality of furnace body functional areas correspond to the plurality of cooling areas one by one; the control method comprises the following steps: detecting the return water temperature of each cooling pipeline to further obtain the average temperature value of each cooling pipeline group; comparing the temperature average value of each cooling pipeline group with a first temperature set value corresponding to the cooling pipeline group, when the temperature average value of the cooling pipeline group is greater than or equal to the corresponding first temperature set value, judging that the flow rate of cooling liquid in the cooling pipeline group is insufficient, increasing the flow rate of cooling liquid in the cooling pipeline group, when the temperature average value of all the cooling pipeline groups is greater than or equal to the corresponding first temperature set value, judging that the flow rate of cooling liquid entering the cooling jacket is insufficient, increasing the flow rate of cooling liquid entering the cooling jacket so as to increase the flow rate of cooling liquid in each cooling pipeline group, wherein the first temperature set value is determined according to the temperature of cooling liquid entering the cooling jacket and cooling intensity requirement information of the furnace body functional area corresponding to the cooling pipeline group, the cooling strength requirement information of the furnace body functional area is determined according to the working condition information of the metallurgical furnace; and/or comparing the rising rate of the temperature average value of each cooling pipeline group with a first temperature change set value corresponding to the cooling pipeline group, when the rising rate of the temperature average value of the cooling pipeline group is greater than or equal to the corresponding first temperature change set value, judging that the flow rate of the cooling liquid in the cooling pipeline group is insufficient, increasing the flow rate of the cooling liquid in the cooling pipeline group, when the rising rates of the temperature average values of all the cooling pipeline groups are greater than or equal to the corresponding first temperature change set value, judging that the flow rate of the cooling liquid entering the cooling jacket is insufficient, and increasing the flow rate of the cooling liquid entering the cooling jacket so as to increase the flow rate of the cooling liquid in each cooling pipeline group.

In some embodiments, the control method further includes detecting a water return pressure of each cooling pipeline, and further obtaining a pressure average value of each cooling pipeline group; comparing the pressure average value of each cooling pipeline group with a first pressure set value corresponding to the cooling pipeline group, when the pressure average value of the cooling pipeline group is less than or equal to the corresponding first pressure set value, judging that the flow of the cooling liquid in the cooling pipeline group is insufficient, and increasing the flow of the cooling liquid in the cooling pipeline group, when the pressure average value of all the cooling pipeline groups is less than or equal to the corresponding first pressure set value, judging that the flow of the cooling liquid entering the cooling jacket is insufficient, and increasing the flow of the cooling liquid entering the cooling jacket so as to increase the flow of the cooling liquid in each cooling pipeline group; and/or comparing the descending rate of the pressure average value of each cooling pipeline group with a first pressure change set value corresponding to the cooling pipeline group, when the descending rate of the pressure average value of the cooling pipeline group is greater than or equal to the corresponding first pressure change set value, judging that the flow rate of the cooling liquid in the cooling pipeline group is insufficient, increasing the flow rate of the cooling liquid in the cooling pipeline group, when the descending rate of the pressure average value of all the cooling pipeline groups is greater than or equal to the corresponding first pressure change set value, judging that the flow rate of the cooling liquid entering the cooling jacket is insufficient, and increasing the flow rate of the cooling liquid entering the cooling jacket so as to increase the flow rate of the cooling liquid in each cooling pipeline group.

In some embodiments, the control method further includes detecting a return water flow rate of each cooling pipeline, and further obtaining a return water flow rate of each cooling pipeline group; and comparing the return water flow of each cooling pipeline group with the water inlet flow of the cooling pipeline group, and determining that the cooling pipeline group is in an abnormal state when the ratio of the return water flow of the cooling pipeline group to the water inlet flow of the cooling pipeline group is less than or equal to a first threshold value.

In some embodiments, the control method further comprises comparing the water return temperature of each cooling pipeline with a second temperature set value corresponding to the cooling pipeline, and recording the number of the cooling pipeline when the water return temperature of the cooling pipeline is greater than or equal to the second temperature set value; and/or comparing the rising rate of the return water temperature of each cooling pipeline with a second temperature change set value corresponding to the cooling pipeline, and recording the serial number of the cooling pipeline when the rising rate of the return water temperature of the cooling pipeline is greater than or equal to the corresponding second temperature change set value.

In some embodiments, the control method further includes comparing a decrease rate of the return water pressure of each cooling pipeline with a second pressure change set value corresponding to the cooling pipeline, and when the decrease rate of the return water pressure of the cooling pipeline is greater than or equal to the corresponding second pressure change set value and the decrease rates of the return water pressures of the other cooling pipelines belonging to the same cooling pipeline group as the cooling pipeline are less than the corresponding second pressure change set value, determining that a leakage point exists in the cooling pipeline, sending an alarm signal, and storing the alarm information in historical data.

In some embodiments, the control method further includes comparing the return water flow rate of each cooling pipeline with a flow set value corresponding to the cooling pipeline, when the ratio of the return water flow rate of the cooling pipeline to the flow set value is smaller than or equal to a second threshold value, determining that a leakage point exists in the cooling pipeline, sending an alarm signal, and storing the alarm information in historical data; and/or comparing the reduction rate of the return water flow of each cooling pipeline with a flow change set value corresponding to the cooling pipeline, judging that a leakage point exists in the cooling pipeline when the reduction rate of the return water flow of the cooling pipeline is greater than or equal to the corresponding flow change set value, sending an alarm signal, and storing the alarm information in historical data.

In a further aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program is configured to, when executed, implement the steps in the method according to any one of the embodiments of the aspect of the present invention.

An embodiment of another aspect of the present invention provides an electronic device, including: a processor and a memory; the memory stores a computer program; the processor is arranged to carry out the method of any of the embodiments of an aspect of the invention when executing the computer program.

According to a further aspect of the invention, the invention provides a zone cooling control method for a metallurgical furnace, which is characterized in that the metallurgical furnace comprises a cooling jacket and a furnace body, wherein the cooling jacket comprises a plurality of cooling areas; the control method comprises the following steps: acquiring the average value of the return water temperature of the cooling area; comparing the average value of the return water temperature with a set return water temperature; and a step of, when the average value of the return water temperatures is higher than the set return water temperature, judging that the flow rate of the cooling liquid in the cooling area is insufficient, and increasing the supply of the cooling liquid in the cooling area.

According to another aspect of the embodiment of the invention, a zone cooling control method for a metallurgical furnace is provided, and is characterized in that the metallurgical furnace comprises a cooling jacket and a furnace body, wherein the cooling jacket comprises a plurality of cooling areas; the control method comprises the following steps: when the average value of the return water temperatures of all the cooling areas is higher than the set temperature value, judging that the flow of the cooling liquid of the cooling jacket is insufficient, and further sending an alarm signal of insufficient supply of the cooling liquid of the cooling jacket; and when detecting that the rising rate of the backwater temperature of all the cooling areas is greater than the temperature change set value, judging that the flow of the cooling liquid of the cooling jacket is insufficient, and then sending an alarm signal of insufficient supply of the cooling liquid of the cooling jacket.

According to a further aspect of the invention, the invention provides a zone cooling control method for a metallurgical furnace, which is characterized in that the metallurgical furnace comprises a cooling jacket and a furnace body, wherein the cooling jacket comprises a plurality of cooling areas; the control method comprises the following steps: comparing the backwater flow of each cooling area with the water inlet flow of the cooling area; judging whether the water inlet flow is consistent with the water return flow; when the backwater flow is lower than the water inlet flow and exceeds a preset threshold value, sending an alarm signal that the backwater flow of the cooling area is abnormal, and quickly locking the cooling area as a key inspection area; finding out the leaked cooling pipeline of the key inspection area, and closing a water inlet valve of the cooling pipeline.

According to a further aspect of the invention, the invention provides a zone cooling control method for a metallurgical furnace, which is characterized in that the metallurgical furnace comprises a cooling jacket and a furnace body, wherein the cooling jacket comprises a plurality of cooling areas; the control method comprises the following steps: comparing the average value of the water return pressure of each cooling area with a normal pressure range; and judging that the cooling liquid in the cooling area is not sufficiently supplied when the average value of the water return pressure is lower than the normal pressure range, and further sending out a warning signal that the cooling liquid in the cooling area is not sufficiently supplied and increasing the supply of the cooling liquid in the cooling area.

According to a further aspect of the invention, the invention provides a zone cooling control method for a metallurgical furnace, which is characterized in that the metallurgical furnace comprises a cooling jacket and a furnace body, wherein the cooling jacket comprises a plurality of cooling areas; the control method comprises the following steps: when the return water pressure of the cooling areas is detected to be smaller than the normal pressure range, judging that the flow of the cooling liquid of the cooling jacket is insufficient, and further sending an alarm signal of insufficient supply of the cooling liquid of the cooling jacket; and when the reduction rate of the return water pressure of the plurality of cooling areas is detected to be larger than a set value, judging that the flow of the cooling liquid of the cooling jacket is insufficient, and further sending an alarm signal of insufficient supply of the cooling liquid of the cooling jacket.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural view of a cooling system for a metallurgical furnace according to an embodiment of the present invention.

FIG. 2 is a schematic view of a control system for a cooling system of a metallurgical furnace in accordance with an embodiment of the present invention.

FIG. 3 is a flow chart illustrating a method for controlling a metallurgical furnace according to an embodiment of the present invention.

Reference numerals:

a cooling system 100;

a water supply main 1; a second detecting device 11;

a water supply branch pipe 2; second flow rate regulating valve 21

A cooling jacket 3; a confluence pipeline 4;

a patrol header pipe 51; a patrol branch pipe 52; the first detection means 53;

a return line 6; a flow direction control member 61;

a water supply branch pipe 7; the first flow rate regulating valve 71; a third detecting device 72;

a water distribution tank 8;

a water collection tank 9;

an analysis module 101; a flow control module 102; an alarm module 103.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

A cooling system 100 for a metallurgical furnace according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, a cooling system 100 for a metallurgical furnace according to an embodiment of the present invention includes a water supply main 1, a plurality of water supply branch pipes 2, a cooling jacket 3, a plurality of confluence lines 4, a patrol line, and a plurality of return lines 6.

Each water supply branch pipe 2 is communicated with the water supply main pipe 1. The cooling jacket 3 includes a plurality of cooling pipes (not shown in the drawings) that communicate with the plurality of water supply branch pipes 2 in a one-to-one correspondence.

It should be noted that "one-to-one" here and in the following means that two different pipelines or elements of the same number are connected one to one. Taking the "one-to-one correspondence" as an example herein, each of the cooling lines and the water supply branch pipes 2 includes a plurality of cooling lines, the number of which is the same as that of the water supply branch pipes 2, and one cooling line communicates with one water supply branch pipe 2, so that the plurality of cooling lines can communicate with the plurality of water supply branch pipes 2 "one-to-one correspondence".

The inspection pipeline comprises an inspection main pipe 51 and a plurality of inspection branch pipes 52, a first detection device 53 is arranged on the inspection main pipe 51, and a first end of each inspection branch pipe 52 is connected with the inspection main pipe 51.

The first end portions of the plurality of return lines 6 are communicated with the plurality of cooling lines in a one-to-one correspondence manner, the second end portion of each return line 6 is switchably provided between a confluence state and a detection state, the second end portions of the return lines 6 in the confluence state are connected with the first end portions of the plurality of confluence lines 4 in a one-to-one correspondence manner, and the second end portions of the plurality of return lines 6 in the detection state are connected with the second end portions of the plurality of routing inspection branch pipes 52 in a one-to-one correspondence manner.

That is, when the second end portion of the return line 6 is in the confluence state, the return line 6 communicates with the confluence line 4, and at this time, the cooling liquid in the return line 6 enters the confluence line 4, and circulates in the confluence line 4 to recover the cooling liquid. When the second end of the return line 6 is in the detection state, the return line 6 is communicated with the inspection branch pipe 52, at the moment, the cooling liquid in the return line 6 enters the inspection branch pipe 52, the cooling liquid enters the inspection header pipe 51 through the inspection branch pipe 52, and the first detection device 53 on the inspection header pipe 51 can detect the cooling liquid.

Specifically, if the cooling liquid in the first return line 6 (for example, the uppermost return line 6) is detected, the second end of the first return line 6 may be brought into a detection state, and the second ends of the remaining return lines 6 may be brought into a confluence state. Therefore, only the cooling liquid in the first return pipeline 6 enters the inspection main pipe 51 through the inspection branch pipe 52, so that the cooling liquid in the first return pipeline 6 can be detected by the first detection device 53 on the inspection main pipe 51. Moreover, the second ends of the plurality of return lines 6 can be made to be in the detection state in order, and the second ends of the remaining return lines 6 are in the confluence state, so that the cooling liquid in the plurality of return lines 6 can be detected in order, and inspection can be achieved.

As shown in fig. 1, a cooling system 100 for a metallurgical furnace includes a water supply main 1, a plurality of water supply branch pipes 7, a plurality of water supply branch pipes 2, a cooling jacket 3, a plurality of confluence lines 4, an inspection line, a plurality of flow direction controllers 61, and a plurality of return lines 6.

Alternatively, the first detecting device 53 on the inspection manifold 51 includes a first temperature detector capable of detecting the temperature of the cooling liquid in the inspection manifold 51, a first flow rate detector capable of detecting the flow rate of the cooling liquid in the inspection manifold 51, and a first pressure detector capable of detecting the pressure of the cooling liquid in the inspection manifold 51.

In some embodiments, the water main 1 is provided with a second detection device 11. Optionally the second detection means 11 comprises a second temperature detector, a second flow detector and a second pressure detector. The second temperature detector can detect the temperature of the cooling liquid in the water supply main 1, the second flow detector can detect the flow of the cooling liquid in the water supply main 1, and the second pressure detector can detect the pressure of the cooling liquid in the water supply main 1.

It should be noted that the first detecting device 53 and the second detecting device 11 can be provided with different detectors according to the actual requirements, and the type of the detector known to those skilled in the art can be selected according to the actual requirements, which is not limited herein. Alternatively, the first temperature detector and/or the second temperature detector may be a thermal resistor, the first pressure detector and/or the second pressure detector may be an EJA smart pressure transmitter, and the first flow detector and/or the second flow detector may be an electromagnetic flow meter or an ultrasonic flow meter.

As shown in fig. 1, a first end of each water supply branch pipe 7 communicates with the water supply main 1, and the cooling liquid in the water supply main 1 can be branched into a plurality of water supply branch pipes 7. The plurality of water supply branch pipes 2 constitute a plurality of water supply branch pipe groups, each of which includes the plurality of water supply branch pipes 2. The plurality of water supply branch pipe groups are communicated with the second ends of the plurality of water supply branch pipes 7 in a one-to-one correspondence. A first end of each water supply branch pipe 2 communicates with a second end of the corresponding water supply branch pipe 7.

The terms "corresponding," "corresponding," and "corresponding" herein and hereinafter refer to a relationship between a particular conduit or element and another conduit or element connected thereto. Taking the "corresponding" as an example, since it is mentioned above that the plurality of water supply branch pipe groups are communicated with the second ends of the plurality of water supply branch pipes 7 in a one-to-one correspondence manner, that is, each water supply branch pipe 7 is communicated with one water supply branch pipe group, which in turn comprises a plurality of water supply branch pipes 2, the water supply branch pipe 7 communicated with the water supply branch pipe group is the "corresponding" water supply branch pipe 7 of each water supply branch pipe 2 in the water supply branch pipe group.

As an example, the cooling system 100 shown in fig. 1 includes three water supply branch pipes 7, and the plurality of water supply branch pipes 2 constitute three water supply branch pipe groups, each of which includes the plurality of water supply branch pipes 2. After the cooling liquid enters the water supply main 1, the cooling liquid in the water supply main 1 is branched by the three water supply branch pipes 7 and enters the three water supply branch pipes 7, the cooling liquid in each water supply branch pipe 7 is branched by the plurality of water supply branch pipes 2 communicated with the water supply branch pipe 7, and thus the cooling liquid in each water supply branch pipe 7 enters the plurality of water supply branch pipes 2.

The second ends of the plurality of water supply branch pipes 2 communicate with the first ends of the plurality of cooling lines in the cooling jacket 3 in a one-to-one correspondence, and the second ends of the plurality of cooling lines communicate with the first ends of the plurality of return lines 6 in a one-to-one correspondence.

Further, each water supply branch pipe 7 is provided with a first flow regulating valve 71, and the first flow regulating valve 71 is used for regulating the flow of the cooling liquid in the water supply branch pipe 7. Alternatively, the first flow rate adjustment valve 71 is an electric valve or an air-operated valve. That is, the first flow rate adjustment valve 71 can be adjusted by the control system, that is, the control system can adjust the flow rate in the water supply branch pipe 7 by the first flow rate adjustment valve 71.

As shown in fig. 1, each flow direction control member 61 has an inlet, a first outlet, and a second outlet. The inlet is switchably in communication with one of the first outlet and the second outlet. In other words, the inlet communicates with either the first outlet or the second outlet. When the inlet is communicated with the first outlet, the inlet is disconnected from the second outlet, namely the inlet is not communicated with the second outlet; when the inlet is in communication with the second outlet, the inlet is in cut-off communication with the first outlet, i.e., the inlet is not in communication with the first outlet. The inlet may be switched from communicating with the first outlet to communicating with the second outlet, or the inlet may be switched from communicating with the second outlet to communicating with the first outlet.

The plurality of inlets communicate with the second ends of the plurality of return lines 6 in a one-to-one correspondence, and the plurality of first outlets communicate with the first ends of the plurality of confluence lines 4 in a one-to-one correspondence. The plurality of second outlets communicate with the second ends of the plurality of routing inspection branch pipes 52 in a one-to-one correspondence. That is, the flow direction control member 61 is connected to the second end portion of the return line 6, the first end portion of the confluence line 4 corresponding to the return line 6, and the second end portion of the inspection branch pipe 52 corresponding to the return line 6.

Since the inlet is switchably communicated with one of the first outlet and the second outlet, each flow direction control member 61 has a first state and a second state. When the second ends of the return pipes 6 are in the confluence state, the flow control member 61 is in the first state, and at this time, the inlet of the flow control member 61 is communicated with the first outlet and the inlet is disconnected from the second outlet, that is, the second ends of the return pipes 6 are connected to the first ends of the confluence pipes 4 in a one-to-one correspondence. The cooling liquid in the return line 6 can flow into the joining line 4 through the inlet and the first outlet of the flow direction control 61.

When the second end of the return line 6 is in the test state, the flow control 61 is in the second state. At this time, the inlet of the flow control element 61 is communicated with the second outlet, and the inlet is cut off from the first outlet, that is, the second ends of the plurality of return pipelines 6 are connected with the second ends of the plurality of inspection branch pipes 52 in a one-to-one correspondence manner. The cooling liquid in the return line 6 can flow into the branch inspection pipe 52 through the inlet and the second outlet of the flow direction control member 61.

Alternatively, the flow control member 61 is a three-way solenoid valve. The three-way solenoid valve has an inlet, a first outlet, and a second outlet.

Optionally, a second flow regulating valve 21 is provided on each water supply branch pipe 2, and the second flow regulating valve 21 is used for regulating the flow of the cooling liquid in the water supply branch pipe 2. Alternatively, the second flow rate adjustment valve 21 is a manual valve, an electric valve, an electromagnetic valve, or an air-operated valve. That is, when the second flow rate adjustment valve 21 is an electric valve, an electromagnetic valve, or an air-operated valve, the second flow rate adjustment valve 21 can be adjusted by the control system, and when the second flow rate adjustment valve 21 is a manual valve, the operator can manually adjust the second flow rate adjustment valve 21. Both types of valves allow to regulate the flow of cooling liquid in the water supply branch 2.

Further optionally, a third detection device 72 is provided on each water supply branch pipe 7. Optionally, the third detecting means comprises a third flow detector. Alternatively, the third flow detector may be an electromagnetic flow meter, an ultrasonic flow meter, a throttle flow meter, or the like. Because the water supply branch pipe 7 is communicated with the water supply main pipe 1, the temperature and the pressure of the cooling liquid in the water supply branch pipe 7 are theoretically the same as those of the cooling liquid in the water supply main pipe 1, and therefore, the temperature and the pressure of the cooling liquid in the water supply branch pipe 7 can be measured without extra measurement. It will be appreciated that in other embodiments, the third detection means 72 may also comprise a third temperature detector and a third pressure detector when it is desired to measure the temperature and pressure of the cooling liquid in the water supply branch 7. It should be noted that the third detecting device 73 can be provided with different detectors according to actual needs, and the type of the detector known to those skilled in the art can be selected according to actual needs, and is not limited herein.

As shown in fig. 1, in some embodiments, the cooling jacket 3 may be divided into a plurality of cooling regions, each cooling region including a plurality of cooling pipes, that is, the plurality of cooling pipes in the cooling jacket 3 constitute a plurality of cooling pipe groups.

In some embodiments, as shown in fig. 1, the plurality of return lines 6 constitutes a plurality of return line groups, each return line group including a plurality of return lines 6. The plurality of return line groups correspond to the plurality of cooling line groups one to one.

In some embodiments, the inspection pipeline includes a plurality of inspection main pipes 51, the plurality of inspection branch pipes 52 form a plurality of inspection branch pipe groups, each inspection branch pipe group includes a plurality of inspection branch pipes 52, the plurality of inspection main pipes 51 are connected with the plurality of inspection branch pipe groups in a one-to-one correspondence manner, and a first end of each inspection branch pipe 52 is connected with the corresponding inspection main pipe 51. As an example, the cooling system 100 shown in fig. 1 includes three inspection manifolds 51, and the plurality of inspection branch pipes 52 constitute three inspection branch pipe groups. The three inspection main pipes are connected with the three inspection branch pipe groups in a one-to-one correspondence mode. That is, each inspection trunk 51 communicates with a plurality of inspection branch pipes 52 of the corresponding inspection branch pipe group. The plurality of inspection branch pipes 52 connected to the same inspection main pipe 51 can introduce the cooling liquid into the inspection main pipe 51 at different times. The plurality of routing inspection branch pipe groups correspond to the plurality of return pipeline groups one to one. The purpose of setting up a plurality of house steward 51 of patrolling and examining is in order to improve and patrols and examines efficiency, can set up the quantity of house steward 51 of patrolling and examining according to the needs comprehensive consideration of the condition in the in-service use efficiency and equipment cost selectively.

By distributing the plurality of water supply branch pipes 2 into a plurality of water supply branch pipe groups, a plurality of cooling pipes into a plurality of cooling pipe groups, a plurality of return pipes 6 into a plurality of return pipe groups, and a plurality of patrol branch pipes 52 into a plurality of patrol branch pipe groups. A plurality of water supply branch pipes 7, a plurality of water supply branch pipe groups, a plurality of cooling pipeline groups, a plurality of return pipeline groups and a plurality of patrol branch pipe groups one-to-one.

That is, the number of the return line groups is equal to the number of the water supply branch line groups, the number of the return line groups is equal to the number of the inspection branch line groups, one return line group corresponds to one water supply branch line group, and one return line group corresponds to one inspection branch line group.

In some embodiments, the number of return lines 6 in the set of return lines is equal to the number of supply legs 2 in the set of supply legs, and the plurality of return lines 6 and the plurality of supply legs 2 in the corresponding set of return lines and set of supply legs are in communication. The number of the return pipelines 6 in the return pipeline group is the same as that of the inspection branch pipes 52 in the inspection branch pipe group, and the plurality of return pipelines 6 and the plurality of inspection branch pipes 52 in the corresponding return pipeline group and inspection branch pipe group are communicated in a one-to-one correspondence manner. And the number of the water supply branch pipes 2 in each water supply branch pipe group is equal to the number of the cooling pipes in the cooling pipe group corresponding thereto, and the number of the return pipes 6 in each return pipe group is equal to the number of the cooling pipes in the cooling pipe group corresponding thereto.

In other embodiments, the number of return lines 6 in the return line group may not be equal to the number of water supply branches 2 in the water supply branch group, and the plurality of return lines 6 and the plurality of water supply branches 2 in the corresponding return line group and water supply branch group are communicated through the cooling lines in the cooling line groups corresponding to the return line group and the water supply branch group. For example, the number of the water inlets of the cooling pipes in the cooling pipe group is different from the number of the water return ports of the cooling pipes, for example, if at least one cooling pipe merges in the cooling jacket, the number of the return pipes 6 in the return pipe group is equal to the number of the water return ports of the cooling pipes in the cooling pipe group, the number of the water supply branch pipes 2 in the water supply branch pipe group is equal to the number of the water inlets of the cooling pipes in the cooling pipe group, then the number of the return pipes 6 in the return pipe group is not equal to the number of the water supply branch pipes 2 in the water supply branch pipe group.

The reason for dividing the cooling jacket 3 is that for the furnace body of the same metallurgical furnace, the cooling intensity required by different functional areas of the furnace body of the metallurgical furnace is different even under the same working condition. If the cooling jackets at the different furnace body functional areas are divided into different cooling areas, it can be understood that the cooling strength requirements of the different furnace body functional areas to the cooling areas corresponding to the different furnace body functional areas are also different. That is, by dividing the cooling jacket into different cooling areas, different cooling areas can be provided with different cooling strengths so as to better meet the cooling requirements of different furnace body functional areas of the metallurgical furnace. In addition, carry out the subregion to cooling jacket 3 according to the furnace body functional area of furnace body to through a plurality of water supplies branch pipe 7, a plurality of water supply branch nest of tubes, a plurality of return line group, a plurality of settings of patrolling and examining the branch nest of tubes, can realize accurate test and regulation and control to the cooling capacity of the different cooling regions of cooling jacket 3, and then realize more accurate, even cooling to metallurgical stove. For example, a side-blown smelting furnace for slag treatment may be divided into a lance region, an expansion section region, a gas phase region and a smoke outlet region, and a cooling jacket corresponding to the side-blown smelting furnace may also be divided into four cooling regions in a one-to-one correspondence, that is, a plurality of cooling pipes in the cooling jacket 3 constitute four cooling pipe groups. In practical application, the furnace body of the metallurgical furnace can be divided into different functional zones according to practical conditions.

By grouping the water supply branch pipes 2 so that the plurality of water supply branch pipe groups are connected to the plurality of cooling areas in one-to-one correspondence, the cooling intensity of the cooling area corresponding to each water supply branch pipe group can be adjusted by adjusting the flow rate of the water supply branch pipe 7 corresponding to the water supply branch pipe group.

Another purpose of the zoning of the cooling jacket 3 is to increase the efficiency of the service. When the difference between the sum of the flow rates of the cooling liquid in all the water return pipelines 6 and the flow rate of the cooling liquid in the water supply main pipe 1 is greater than or equal to the first preset value, that is, when it is determined that the cooling system 100 has a large possibility of leakage, the leakage area can be locked more quickly by comparing the flow rate of each water supply branch pipe 7 with the flow rate of the return pipeline group corresponding to each water supply branch pipe 7, and then the leakage point can be locked quickly, so that the overhaul efficiency can be improved.

That is, the cooling line group in which the cooling line having the leak point is located is determined, and then which cooling line(s) of the cooling line group has the leak point is determined. This eliminates the need to check the cooling lines of the cooling line groups, which do not have any leakage points, and thus greatly reduces the amount of checking, so that leakage points can be quickly locked. For example, when the difference between the flow rate of a certain return line group and the flow rate of the corresponding water supply branch pipe 7 is greater than or equal to the second preset value, it may be determined that a leakage point exists in at least one cooling line in the cooling line group corresponding to the return line group.

Alternatively, the leakage area may be quickly locked by directly comparing the sum of the flow rate of each water supply branch pipe 7 and the flow rate of each water supply branch pipe group.

As shown in fig. 1, the cooling system 100 for a metallurgical furnace according to an embodiment of the present invention further includes a plurality of water distribution grooves 8, the plurality of water distribution grooves 8 are in one-to-one communication with second ends of the plurality of water supply branch pipes 7, the plurality of water supply branch pipe groups are in one-to-one communication with the plurality of water distribution grooves 8, and a first end of each water supply branch pipe 2 is in communication with a corresponding water distribution groove 8. The water distribution tank 8 plays a role of water distribution, cooling liquid flows into the water distribution tank 8 from the water supply branch pipes 7, the cooling liquid is distributed in the water distribution tank 8 and then enters the plurality of water supply branch pipes 2 connected with the water distribution tank 8 from the water distribution tank 8, and the uniformity of the cooling liquid flowing into the plurality of water supply branch pipes 2 can be improved by the water distribution tank 8, namely the cooling liquid is uniformly distributed into the plurality of water supply branch pipes 2. As an example, the cooling system 100 shown in fig. 1 includes three distribution tanks 8, the three distribution tanks 8 are connected to three water supply branch pipes 7 in one-to-one correspondence, and the plurality of water supply branch pipes 2 in the water supply branch pipe group corresponding to the water supply branch pipe 7 are communicated with the distribution tank 8 corresponding to the water supply branch pipe 7.

As shown in fig. 1, the cooling system 100 for a metallurgical furnace according to an embodiment of the present invention further includes a water collection tank 9, a second end of each of the confluence lines 4 is connected to the water collection tank 9, and the inspection line is connected to the water collection tank 9. The water collecting tank 9 is used for collecting the cooling liquid flowing out of the confluence pipeline 4 and the inspection main pipe 51, and the collected cooling liquid can be reused after being processed.

As shown in fig. 1 and 2, the cooling system 100 for a metallurgical furnace according to an embodiment of the present invention further includes a control system including an inspection control module, an analysis module 101, and a flow control module 102.

An inspection control module is connected to each flow direction control member 61 for controlling the inlet of each flow direction control member 61 to be switchably communicated with one of the first outlet and the second outlet. That is, the inspection control module can control whether the inlet of the flow direction control member 61 is communicated with the first outlet or the second outlet, thereby controlling the return line 6 to be switched between the confluence state and the detection state. It can also be said that the inspection control module can control whether the cooling liquid in the return line 6 enters the confluence line 4 or the inspection branch line by controlling the flow direction control element 61.

The time-sharing cyclic inspection of the inspection pipeline to the return pipeline 6 can be set through the inspection control module, wherein the time-sharing cyclic inspection means that only one return pipeline 6 in the same return pipeline group is in a detection state when the cooling system comprises a plurality of inspection header pipes 51 within a certain time period; when the cooling system has only one inspection manifold 51, only one return line 6 is in the inspection state. That is, when the cooling system includes a plurality of inspection manifolds 51, as for a plurality of return lines 6 in one return line group, at most one return line 6 is in a detection state at any time; when the cooling system has only one inspection manifold 51, at most one return line 6 is in a test state at any time. And, after the inspection main pipe 51 detects all the corresponding return pipelines 6, the inspection is restarted from the first return pipeline 6, so that the time-sharing circulation inspection is realized. The switching frequency of the return line 6 in different states can be set by the inspection control module.

The analysis module 101 is connected to the first detection device 53 and the second detection device 11, and is configured to analyze the detection data of the first detection device 53 and the second detection device 11. The sensed data may include temperature, flow rate and pressure of the cooling liquid. When the cooling system 100 comprises the third detection device 73, the analysis module 101 may be further connected to the third detection device 73 for analyzing the detection data of the third detection device 73. The analysis module 101 analyzes whether the detection data including the temperature, pressure and flow of the return water and the supplied water are in a normal state, so as to analyze whether each furnace body functional area of the metallurgical furnace body is in a normal cooling state. The analysis module 101 may also find cooling areas and cooling lines where anomalies (e.g., leakage points) exist by analyzing the sensed data.

The flow control module 102 is connected to the analysis module 101, and the flow control module 102 is connected to the first flow regulating valve 71 for controlling the flow of the water supply branch pipe 7. When the analysis module 101 sends an adjustment signal to the flow control module 102, the flow control module 102 can adjust the first flow control valve 71 according to the adjustment signal, so as to adjust the flow rate in the water supply branch pipe 7.

Further, the control system also comprises a communication module and a receiving module. The communication module is used for collecting the working condition information of the metallurgical furnace body and transmitting the working condition information to the analysis module 101. The receiving module is configured to receive the detection data of the first detection device 53 and the second detection device 11, and transmit the detection data to the analysis module 101. The analysis module 101 obtains the required cooling strength of different furnace body functional areas of the furnace body by analyzing the working condition information. Because the metallurgical furnace is under different working conditions, the cooling strength required by each area of the metallurgical furnace can be different. According to the cooling intensity requirement information of each furnace body functional region, the analysis module 101 can obtain the cooling intensity information of each cooling region corresponding to each furnace body functional region. According to the cooling intensity information, the analysis module 101 sends a signal to the flow control module 102, and the flow control module 102 adjusts the first flow regulating valve 71 according to the signal, so that the flow of the water supply branch pipe 7 can be regulated. Finally, the purpose of accurately and uniformly cooling different furnace body functional areas of the furnace body according to the working condition information of the metallurgical furnace can be realized, the cooling effect of each furnace body functional area of the furnace body can be timely adjusted by regulating and controlling the flow of cooling liquid in different cooling areas of the cooling jacket 3, and the service life of the metallurgical furnace is prolonged.

Optionally, the control system further comprises an alarm module 103, and the alarm module 103 is connected to the analysis module 101. When the analysis module 101 finds that the detected data has an abnormal condition, a signal can be sent to the alarm module 103, and the alarm module 103 gives an alarm to prompt a worker to perform corresponding processing.

Optionally, the control system is a PLC control system or a DCS control system.

According to another aspect of the present invention, a metallurgical furnace including a cooling device is provided, the metallurgical furnace includes the cooling device provided in an aspect of the present invention and a furnace body of the metallurgical furnace, and a cooling jacket in the cooling device is disposed in the furnace body for cooling the furnace body.

In another aspect, an embodiment of the present invention further provides a method for controlling zone cooling of a metallurgical furnace, including the following steps:

as shown in fig. 3, the temperature of each return pipe 6 of each return pipe group is detected by the first detection device 53, and the average value of the temperature of each return pipe group is obtained. The temperature average is the average of the temperatures of all return lines 6 in the set.

And comparing the temperature average value of each return pipeline group with the first temperature set value corresponding to the return pipeline group, judging that the flow of the cooling liquid in the cooling pipeline group corresponding to the return pipeline group is insufficient when the temperature average value of the return pipeline group is greater than or equal to the corresponding first temperature set value, and increasing the flow of the cooling liquid in the water supply branch pipe 7 corresponding to the return pipeline group so as to increase the flow of the cooling liquid in the cooling pipeline group corresponding to the return pipeline group.

When the average temperature value of all the return pipeline groups is greater than or equal to the corresponding first temperature set value, the flow of the cooling liquid in the water supply main 1 is judged to be insufficient, and the flow of the cooling liquid in the water supply main 1 is increased, so that the flow of the cooling liquid in each cooling pipeline group is increased.

The first temperature set value is the limit temperature of the temperature average value of the return pipeline group in the normal operation state of the metallurgical furnace, and once the temperature average value of a certain return pipeline group is larger than or equal to the first temperature set value corresponding to the temperature average value, the abnormality of the return pipeline group can be judged. The first temperature setting value of the return pipeline group is determined according to the temperature of the cooling liquid in the water supply main 1 detected by the second detection device 11 and the cooling strength information of the cooling pipeline group corresponding to the return pipeline group, and the cooling strength information of the cooling pipeline group is determined according to the working condition information of the metallurgical furnace.

The working condition information of the metallurgical furnace is related to the operating state of the metallurgical furnace, and the working condition information related to the operating state of the metallurgical furnace can be obtained according to different operating states of the metallurgical furnace. The working condition information can guide and determine the cooling strength requirement information of different furnace body functional areas of the furnace body, so that the cooling strength information of different cooling areas of the cooling jacket 3 corresponding to the different furnace body functional areas of the metallurgical furnace body can be obtained, and the cooling strength information of the different cooling areas of the cooling jacket 3 is the cooling strength information of each cooling pipeline group. The cooling intensity requirement information of different furnace body functional areas of the furnace body refers to the heat consumption requirement of each furnace body functional area of the furnace body, namely, the heat which needs to be taken away from the furnace body by the cooling jacket 3 to keep the metallurgical furnace to normally operate. After each cooling area of the cooling jacket 3 takes away the heat of the corresponding furnace body functional area according to the cooling intensity information, the thermal stress of each furnace body functional area is in an allowable normal range, so that the metallurgical furnace can keep normal operation. The above analysis can be performed by the analysis module 101.

That is, when the average temperature value of a certain return line group is greater than or equal to the corresponding first temperature set value, it indicates that the heat intensity borne by the cooling line group corresponding to the return line group is too high, and there is a large risk of burnthrough. And the furnace body functional area corresponding to the cooling pipeline group has the risk of insufficient cooling effect. It is therefore necessary to increase the flow rate of the cooling line group. The flow of the cooling pipeline group can be improved by increasing the flow of the water supply branch pipe 7 corresponding to the cooling pipeline group, so that the heat intensity borne by the cooling pipeline group can be reduced, the cooling effect of the furnace body functional area corresponding to the cooling pipeline group is ensured, and the average temperature value of the return pipeline group can be reduced to be lower than a first temperature set value. The operation safety coefficient of the metallurgical furnace is improved, and the service life of the metallurgical furnace is prolonged.

In some embodiments, when the analysis module 101 determines that the flow rate of the cooling liquid in the cooling pipeline group corresponding to a certain return pipeline group is insufficient, a signal is sent to the flow control module 102. The flow control module 102 can increase the opening degree of the first flow rate adjustment valve 71 of the water supply branch pipe 7 corresponding to the return line group, thereby increasing the flow rate of the water supply branch pipe 7.

In some embodiments, after the analysis module 101 determines that the flow rate of the cooling liquid in the water main 1 is insufficient, a signal is sent to the alarm module 103, and the alarm module 103 sends an alarm signal to prompt a worker to check whether the water supply pump of the water main 1 is faulty or not, or to check whether the water supply source of the water main 1 is faulty or not, so as to perform corresponding processing to increase the flow rate of the cooling liquid in the water main 1.

In some embodiments, the control method may further include the steps of:

and comparing the rising rate of the temperature average value of each return pipeline group with a first temperature change set value corresponding to the return pipeline group, judging that the flow of the cooling liquid in the cooling pipeline group corresponding to the return pipeline group is insufficient when the rising rate of the temperature average value of a certain return pipeline group is greater than or equal to the corresponding first temperature change set value, and increasing the flow of the cooling liquid in the water supply branch pipe 7 corresponding to the return pipeline group so as to increase the flow of the cooling liquid in the cooling pipeline group corresponding to the return pipeline group.

When the rising rates of the average temperature values of all the return pipeline groups are larger than or equal to the corresponding first temperature change set values, the flow of the cooling liquid in the water supply main 1 is judged to be insufficient, and the flow of the cooling liquid in the water supply main 1 is increased, so that the flow of the cooling liquid in each cooling pipeline group is increased.

The rate of rise of the temperature average value of each return line group can be calculated from the temperature average value of each return line group and the frequency of detection by the first detection means 53. The first temperature change set point of the return line set refers to a limit rise rate of the temperature average value of the return line set under normal operation of the metallurgical furnace. The first temperature change set value of the return pipeline group is determined according to the cooling strength information of the cooling pipeline group corresponding to the return pipeline group, and the cooling strength information of the cooling pipeline group is determined according to the working condition information of the metallurgical furnace. The first temperature variation set value may be obtained by combining the average value of the rising rates of the temperature average values detected by the first detecting device 53 during a plurality of times of normal operations of the metallurgical furnace with the corresponding cooling intensity information. And the first temperature change set value can be continuously adjusted and improved according to the operation effect in the actual operation process of the metallurgical furnace. The above analysis can be performed by the analysis module 101.

In some embodiments, the control method may further comprise detecting the pressure of each return line 6 of each return line set by means of the first detection device 53, and thus obtaining an average value of the pressure of each return line set. The average value of the pressures is the average value of the pressures of all return lines 6 in the set.

And comparing the pressure average value of each return pipeline group with the first pressure set value corresponding to the return pipeline group, judging that the flow of the cooling liquid in the cooling pipeline group corresponding to the return pipeline group is insufficient when the pressure average value of the return pipeline group is less than or equal to the corresponding first pressure set value, and increasing the flow of the cooling liquid in the water supply branch pipe 7 corresponding to the return pipeline group so as to increase the flow of the cooling liquid in the cooling pipeline group corresponding to the return pipeline group. That is, when the average value of the pressures of the return line sets is equal to or less than the corresponding first pressure set value, it is indicated that the cooling line set corresponding to the return line set is short of water supply. Therefore, the flow rate of the cooling line group needs to be increased, and the flow rate of the cooling line group can be increased by increasing the flow rate of the water supply branch pipe 7 corresponding to the cooling line group, so that the pressure average value of the return line group corresponding to the cooling line group is increased, and the pressure average value returns to the normal state.

And when the average pressure value of all the return pipeline groups is less than or equal to the corresponding first pressure set value, judging that the flow of the cooling liquid in the water supply main 1 is insufficient, and increasing the flow of the cooling liquid in the water supply main 1 so as to increase the flow of the cooling liquid in each cooling pipeline group.

The first pressure set value of the return pipeline group refers to the limit pressure of the pressure average value of the return pipeline group in the normal operation state of the metallurgical furnace, and once the pressure average value of a certain return pipeline group is less than or equal to the first pressure set value corresponding to the pressure average value, the abnormality of the return pipeline group can be judged. The first pressure set value of the return line set is obtained from the pressure of the cooling liquid in the water supply main 1 detected by the second detection device 11 and is related to the direction of the return line 6, and the first pressure set value of the return line set can be calculated.

In some embodiments, the control method further includes comparing the rate of decrease of the pressure average value of each of the return line groups with a first pressure change set value corresponding to the return line group, determining that the flow rate of the cooling liquid in the cooling line group corresponding to the return line group is insufficient when the rate of decrease of the pressure average value of the return line group is equal to or greater than the corresponding first pressure change set value, and increasing the flow rate of the cooling liquid in the water supply branch pipe 7 corresponding to the return line group so as to increase the flow rate of the cooling liquid in the cooling line group corresponding to the return line group.

When the decreasing rate of the average pressure value of all the return pipeline groups is greater than or equal to the corresponding first pressure change set value, the flow of the cooling liquid in the water supply main 1 is judged to be insufficient, and the flow of the cooling liquid in the water supply main 1 is increased, so that the flow of the cooling liquid in each cooling pipeline group is increased.

The rate of decrease of the average value of the pressures of the return line groups is calculated from the average value of the pressures of each return line group and the frequency of detection by the first detection means 53. The first pressure change set point is a limiting rate of decrease of the mean value of the pressures of the set of return lines during normal operating conditions of the metallurgical furnace. The first pressure change set value may be obtained from an average value of a rate of decrease of the pressure average value detected by the first detecting means during a plurality of times of normal operations of the metallurgical furnace after the plurality of times of normal operations. And the first pressure change set value can be continuously adjusted and improved according to the operation effect in the continuous operation process of the metallurgical furnace.

In some embodiments, the control method further comprises detecting the flow rate of each return line 6 of each return line set by means of the first detection device 53, and thus obtaining the flow rate of each return line set. The flow of each return line set is the sum of the flows of each return line 6 in each return line set.

And comparing the flow of each return pipeline group with the flow of the corresponding water supply branch pipe 7 of the return pipeline group, and determining that the return pipeline group is in an abnormal state when the ratio of the flow of the return pipeline group to the flow of the corresponding water supply branch pipe 7 of the return pipeline group is less than or equal to a first threshold value. The first threshold value is the ratio of the flow of the return line set to the flow of the water supply branch 7 corresponding to the return line set in the case of normal operation of the metallurgical furnace. The abnormal state of the return line group means that a leakage point may exist in the cooling line group corresponding to the return line group. The cooling pipeline set corresponding to the return pipeline set can be locked as a key inspection area.

In some embodiments, as shown in fig. 3, the control method further comprises comparing the temperature of each return line 6 with a second temperature set point corresponding to that return line 6, and recording the number of that return line 6 when the temperature of the return line 6 is greater than or equal to the corresponding second temperature set point. The second temperature set value is a limit temperature of the return line 6 when the metallurgical furnace is in the operating state, and once the temperature of a certain return line 6 is greater than or equal to the second temperature set value corresponding to the temperature, the potential burnthrough of the return line 6 can be considered to exist. Recording the return pipeline 6 can be used for storing the conditions of maintenance work, hidden danger troubleshooting work, emergency accident treatment and the like during subsequent blowing-out maintenance. For example, when a certain return line group is determined to be in an abnormal state, the return line 6 recorded in the return line group can be determined to be an abnormal return line 6, and the cooling line corresponding to the return line 6 has a leak point. Optionally, when the temperature of a certain return pipeline 6 is greater than or equal to the second temperature set value corresponding to the certain return pipeline, an alarm signal is sent out.

The second temperature setting value is determined according to the temperature of the cooling liquid in the water supply main 1 detected by the second detection device 11 and the cooling information intensity of the cooling pipeline corresponding to the return pipeline 6, and the cooling information intensity of the cooling pipeline is determined according to the working condition information of the metallurgical furnace.

The rate of rise of the temperature of each return line 6 is compared with a second temperature change set value corresponding to the return line, and when the rate of rise of the temperature of the return line 6 is greater than or equal to the corresponding second temperature change set value, the number of the return line 6 is recorded.

The rate of rise of the temperature of each return line 6 is calculated from the temperature of each return line 6 and the frequency of detection by the first detection means 53. The second temperature set point of the return line 6 is the rate of the extreme rise of the temperature of the return line 6 during normal operation of the metallurgical furnace. The second temperature change set value of the return line 6 is determined according to the cooling intensity information of the cooling line corresponding to the return line 6, which is determined according to the operating condition information of the metallurgical furnace. The second temperature change set value may be obtained by re-engaging corresponding cooling intensity information according to an average value of a rise rate of the temperature detected by the first detecting means during operation after the metallurgical furnace has normally operated for a plurality of times. And the second temperature change set value can be continuously adjusted and improved according to the operation effect in the continuous operation process of the metallurgical furnace.

In some embodiments, the control method further includes comparing the decrease rate of the pressure of each return line 6 with a second pressure change set value corresponding to the return line, when the decrease rate of the pressure of the return line 6 is greater than or equal to the corresponding second pressure change set value, and the decrease rates of the pressures of the other return lines 6 belonging to the same return line group as the return line 6 are less than the corresponding second pressure change set value, determining that a leakage point exists in the cooling line corresponding to the return line 6, sending an alarm signal, and storing the alarm information in the history data.

The rate of decrease of the pressure in the return line 6 is calculated from the pressure in each return line and the frequency of detection by the first detection means 53. The second pressure change set point is the rate of ultimate decrease of the pressure in the return line during normal operation of the metallurgical furnace. The second pressure variation set value may be obtained from an average value of the rate of decrease of the pressure detected by the first detecting means during operation after a plurality of times of normal operation of the metallurgical furnace. And the second pressure change set value can be continuously adjusted and improved according to the operation effect in the continuous operation process of the metallurgical furnace.

That is, if the pressure drop rate of a certain return line 6 is too fast and is greater than or equal to the corresponding pressure limit drop rate, and the pressure drop rates of the other return lines 6 belonging to the same return line group as the certain return line 6 are at normal speeds (i.e., less than the corresponding pressure limit drop rates), it is determined that a leakage point exists in the cooling line corresponding to the certain return line 6, an alarm signal is issued, and the alarm information is stored in the history data. Recording the alarm information can be used for storing the conditions of maintenance work, hidden danger troubleshooting work, emergency accident treatment and the like during the follow-up blowing-out maintenance.

In some embodiments, the control method further includes comparing the flow rate of each return line 6 with a flow rate set value corresponding to the return line 6, when the ratio of the flow rate of the return line 6 to the flow rate set value is less than or equal to a second threshold value, determining that a leakage point exists in the cooling line corresponding to the return line 6, sending an alarm signal, and storing the alarm information in the history data.

The flow set value corresponding to the return line 6 is a theoretical value of the flow of the return line 6 under the normal operation condition of the metallurgical furnace. The set flow rate value for a return line 6 is related to the flow rate of the water supply branch 7 corresponding to that return line 6 and the number of return lines 6 in the set of return lines in which that return line 6 is located. The second threshold value is the limit threshold value of the ratio of the flow rate of the return line 6 to the set flow rate value in the case of normal operation of the metallurgical furnace. When the ratio of the flow rate of the return line 6 to the flow rate set value is equal to or less than the second threshold value, it is considered that the flow rate of the return line 6 is insufficient and the cooling line corresponding to the return line 6 has a leak point. Recording the alarm information can be used for storing the conditions of maintenance work, hidden danger troubleshooting work, emergency accident treatment and the like during the follow-up blowing-out maintenance.

In some embodiments, the control method further includes comparing the rate of decrease of the flow rate of each return line 6 with a flow rate change set value corresponding to the return line 6, when the rate of decrease of the flow rate of the return line 6 is greater than or equal to the corresponding flow rate change set value, determining that a leakage point exists in the cooling line corresponding to the return line 6, sending an alarm signal, and storing the alarm information in the history data.

The rate of decrease of the flow rate of each return line is calculated from the flow rate of each return line and the frequency of detection by the first detection device 53. The flow change set value of the return pipeline 6 refers to the limit reduction rate of the flow of the return pipeline under the normal operation of the metallurgical furnace.

That is, if the rate of decrease in the flow rate of a certain return line 6 is too fast and equal to or greater than the corresponding flow rate limit decrease rate, it is determined that the cooling line corresponding to the return line 6 has a leak point. Recording the alarm information can be used for storing the conditions of maintenance work, hidden danger troubleshooting work, emergency accident treatment and the like during the follow-up blowing-out maintenance.

Another embodiment of the present invention provides a readable storage medium storing a program which, when executed, implements the control method in the above-described embodiment of the present invention.

In another aspect, the present invention provides a method for controlling zoned cooling in a metallurgical furnace, the metallurgical furnace including a cooling jacket 3, the cooling jacket 3 including a cooling circuit, a plurality of cooling circuits forming a plurality of cooling circuit groups to form a plurality of cooling zones, each cooling circuit group including a plurality of cooling circuits. The furnace body of metallurgical stove has a plurality of furnace body functional areas, and a plurality of furnace body functional areas correspond to a plurality of cooling zone one-to-one.

The control method comprises the following steps:

and detecting the return water temperature of each cooling pipeline to further obtain the average temperature value of each cooling pipeline group.

The average value of the temperature of each cooling line group is compared with a first temperature set value corresponding to the cooling line group, when the average temperature value of the cooling pipeline group is larger than or equal to the corresponding first temperature set value, judging that the flow of the cooling liquid in the cooling pipeline group is insufficient, increasing the flow of the cooling liquid in the cooling pipeline group, when the average temperature value of all the cooling pipeline groups is greater than or equal to the corresponding first temperature set value, judging that the flow of the cooling liquid entering the cooling jacket 3 is insufficient, increasing the flow of the cooling liquid entering the cooling jacket 3, so as to improve the flow rate of the cooling liquid in each cooling pipeline group, the first temperature set value is determined according to the temperature of the cooling liquid entering the cooling jacket 3 and the cooling intensity requirement information of the furnace body functional area corresponding to the cooling pipeline group, and the cooling intensity requirement information of the furnace body functional area is determined according to the working condition information of the metallurgical furnace.

Comparing the rising rate of the temperature average value of each cooling pipeline group with a first temperature change set value corresponding to the cooling pipeline group, judging that the flow of the cooling liquid in the cooling pipeline group is insufficient when the rising rate of the temperature average value of the cooling pipeline group is greater than or equal to the corresponding first temperature change set value, increasing the flow of the cooling liquid in the cooling pipeline group, judging that the flow of the cooling liquid entering the cooling jacket 3 is insufficient when the rising rates of the temperature average values of all the cooling pipeline groups are greater than or equal to the corresponding first temperature change set value, and increasing the flow of the cooling liquid entering the cooling jacket 3 so as to increase the flow of the cooling liquid in each cooling pipeline group.

In some embodiments, the control method further comprises detecting the water return pressure of each cooling pipeline, and further obtaining the pressure average value of each cooling pipeline group.

Comparing the pressure average value of each cooling pipeline group with the first pressure set value corresponding to the cooling pipeline group, when the pressure average value of the cooling pipeline group is less than or equal to the corresponding first pressure set value, judging that the flow of the cooling liquid in the cooling pipeline group is insufficient, and increasing the flow of the cooling liquid in the cooling pipeline group, and when the pressure average value of all the cooling pipeline groups is less than or equal to the corresponding first pressure set value, judging that the flow of the cooling liquid entering the cooling jacket 3 is insufficient, and increasing the flow of the cooling liquid entering the cooling jacket 3, so as to increase the flow of the cooling liquid in each cooling pipeline group.

And when the reduction rate of the pressure average value of all the cooling pipeline groups is greater than or equal to the corresponding first pressure change set value, judging that the flow of the cooling liquid entering the cooling jacket 3 is insufficient, and increasing the flow of the cooling liquid entering the cooling jacket 3 so as to increase the flow of the cooling liquid in each cooling pipeline group.

In some embodiments, the control method further includes detecting the return water flow of each cooling pipeline, and further obtaining the return water flow of each cooling pipeline group. And comparing the return water flow of each cooling pipeline group with the water inlet flow of the cooling pipeline group, and determining that the cooling pipeline group is in an abnormal state when the ratio of the return water flow of the cooling pipeline group to the water inlet flow of the cooling pipeline group is less than or equal to a first threshold value.

In some embodiments, the control method further comprises comparing the return water temperature of each cooling pipeline with a second temperature set value corresponding to the cooling pipeline, and recording the number of the cooling pipeline when the return water temperature of the cooling pipeline is greater than or equal to the corresponding second temperature set value. And comparing the rising rate of the return water temperature of each cooling pipeline with a second temperature change set value corresponding to the cooling pipeline, and recording the serial number of the cooling pipeline when the rising rate of the return water temperature of the cooling pipeline is greater than or equal to the corresponding second temperature change set value.

In some embodiments, the control method further includes comparing the reduction rate of the return water pressure of each cooling pipeline with a second pressure change set value corresponding to the cooling pipeline, and when the reduction rate of the return water pressure of the cooling pipeline is greater than or equal to the corresponding second pressure change set value and the reduction rates of the return water pressures of the other cooling pipelines belonging to the same cooling pipeline group as the cooling pipeline are less than the corresponding second pressure change set value, determining that a leakage point exists in the cooling pipeline, sending an alarm signal, and storing the alarm information in the historical data.

In some embodiments, the control method further comprises comparing the return water flow rate of each cooling pipeline with a flow set value corresponding to the cooling pipeline, when the ratio of the return water flow rate of the cooling pipeline to the flow set value is smaller than or equal to a second threshold value, judging that a leakage point exists in the cooling pipeline, sending an alarm signal, and storing the alarm information in historical data.

And comparing the reduction rate of the return water flow of each cooling pipeline with the flow change set value corresponding to the cooling pipeline, judging that a leakage point exists in the cooling pipeline when the reduction rate of the return water flow of the cooling pipeline is greater than or equal to the corresponding flow change set value, sending an alarm signal, and storing the alarm information in historical data.

Yet another aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed, the steps in the control method provided as the above aspect of the present invention are implemented.

An embodiment of another aspect of the present invention provides an electronic device, including: a processor and a memory. The memory stores a computer program. The processor is arranged to implement the steps of the control method provided by an embodiment of an aspect of the invention when running the computer program.

In another aspect, the embodiment of the invention provides a method for controlling the zone cooling of a metallurgical furnace, the metallurgical furnace comprises a cooling jacket 3 and a furnace body, and the cooling jacket 3 comprises a plurality of cooling areas. The control method comprises the following steps: and acquiring the average value of the return water temperature of the cooling area. And comparing the average value of the return water temperature with the set return water temperature. And a step of judging that the flow rate of the cooling liquid in the cooling area is insufficient and increasing the supply of the cooling liquid in the cooling area when the average value of the return water temperatures is higher than the set return water temperature.

According to still another aspect of the present invention, a method for controlling zone cooling of a metallurgical furnace is provided, the metallurgical furnace includes a cooling jacket 3 and a furnace body, the cooling jacket 3 includes a plurality of cooling areas; the control method comprises the following steps: and when the average value of the return water temperatures of all the cooling areas is higher than the set temperature value, judging that the flow of the cooling liquid of the cooling jacket 3 is insufficient, and further sending an alarm signal of insufficient supply of the cooling liquid of the cooling jacket 3. And when detecting that the rising rate of the return water temperature of all the cooling areas is greater than the set temperature change value, judging that the flow of the cooling liquid of the cooling jacket 3 is insufficient, and further sending an alarm signal of insufficient supply of the cooling liquid of the cooling jacket 3.

According to still another aspect of the present invention, a method for controlling zone cooling of a metallurgical furnace is provided, the metallurgical furnace includes a cooling jacket 3 and a furnace body, the cooling jacket 3 includes a plurality of cooling areas; the control method comprises the following steps: and comparing the backwater flow of each cooling area with the water inlet flow of each cooling area. And judging whether the inflow and the return water flow are consistent. And when the backwater flow is lower than the water inlet flow and exceeds a preset threshold value, sending an alarm signal that the backwater flow of the cooling area is abnormal, and quickly locking the cooling area as a key inspection area. And finding out the leaked cooling pipeline in the key inspection area, and closing a water inlet valve of the cooling pipeline.

According to another aspect of the embodiment of the invention, a zone cooling control method for a metallurgical furnace is provided, the metallurgical furnace comprises a cooling jacket 3 and a furnace body, the cooling jacket 3 comprises a plurality of cooling areas; the control method comprises the following steps: comparing the average value of the backwater pressure of each cooling area with a normal pressure range; and judging that the cooling liquid supply in the cooling area is insufficient when the average value of the backwater pressure is lower than the normal pressure range, and further sending out a warning signal of the insufficient cooling liquid supply in the cooling area and increasing the supply of the cooling liquid in the cooling area.

According to still another aspect of the present invention, a method for controlling zone cooling of a metallurgical furnace is provided, the metallurgical furnace includes a cooling jacket 3 and a furnace body, the cooling jacket 3 includes a plurality of cooling areas; the control method comprises the following steps: when the return water pressure of the cooling areas is detected to be smaller than the normal pressure range, judging that the flow of the cooling liquid of the cooling jacket 3 is insufficient, and further sending an alarm signal of insufficient supply of the cooling liquid of the cooling jacket 3; and when the return water pressure drop rate of the plurality of cooling areas is detected to be larger than a set value, judging that the flow of the cooling liquid of the cooling jacket 3 is insufficient, and further sending out an alarm signal of insufficient supply of the cooling liquid of the cooling jacket 3.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A cooling system for a metallurgical furnace, comprising:

a water main;

a plurality of water supply branch pipes, each of which communicates with the water supply main pipe;

the cooling jacket comprises a plurality of cooling pipelines which are communicated with the water supply branch pipes in a one-to-one correspondence manner;

a plurality of conflux lines;

the inspection pipeline comprises an inspection main pipe and a plurality of inspection branch pipes, wherein a first detection device is arranged on the inspection main pipe, and the first end part of each inspection branch pipe is connected with the inspection main pipe; and

the first end parts of the return pipelines are communicated with the cooling pipelines in a one-to-one correspondence mode, the second end part of each return pipeline is arranged between a confluence state and a detection state in a switchable mode, the second end parts of the return pipelines in the confluence state are connected with the first end parts of the confluence pipelines in a one-to-one correspondence mode, and the second end parts of the return pipelines in the detection state are connected with the second end parts of the inspection branch pipes in a one-to-one correspondence mode;

the inspection branch pipe is characterized by further comprising a plurality of flow direction control pieces, each flow direction control piece is provided with an inlet, a first outlet and a second outlet, the inlet is in communication with one of the first outlet and the second outlet in a switchable manner, the inlets are in communication with the second ends of the return pipelines in a one-to-one correspondence manner, the first outlets are in communication with the first end portions of the confluence pipelines in a one-to-one correspondence manner, the second outlets are in communication with the second end portions of the inspection branch pipes in a one-to-one correspondence manner, and a second detection device is arranged on the water supply main pipe;

the first end of each water supply branch pipe is communicated with the water supply main pipe, a first flow regulating valve is arranged on each water supply branch pipe, a plurality of water supply branch pipes form a plurality of water supply branch pipe groups, each water supply branch pipe group comprises a plurality of water supply branch pipes, the plurality of water supply branch pipe groups are communicated with the second ends of the plurality of water supply branch pipes in a one-to-one correspondence mode, and the first end of each water supply branch pipe is communicated with the second end of the corresponding water supply branch pipe;

the inspection pipeline comprises a plurality of inspection main pipes, the inspection branch pipes form a plurality of inspection branch pipe groups, each inspection branch pipe group comprises a plurality of inspection branch pipes, the inspection main pipes are connected with the inspection branch pipe groups in a one-to-one correspondence manner, the first end of each inspection branch pipe is connected with the corresponding inspection main pipe, the return pipelines form a plurality of return pipeline groups, each return pipeline group comprises a plurality of return pipelines, the return pipeline groups correspond to the water supply branch pipe groups in a one-to-one correspondence manner, and the return pipeline groups correspond to the inspection branch pipe groups in a one-to-one correspondence manner;

the cooling pipelines form a plurality of cooling pipeline groups, each cooling pipeline group comprises a plurality of cooling pipelines, the water supply branch pipe groups correspond to the cooling pipeline groups one by one, the return pipeline groups correspond to the cooling pipeline groups one by one, the cooling jacket comprises a plurality of cooling areas, and the cooling areas correspond to the cooling pipeline groups one by one.

2. The cooling system for a metallurgical furnace of claim 1, wherein the first detection device comprises a first temperature detector, a first flow detector, and a first pressure detector, and the second detection device comprises a second temperature detector, a second flow detector, and a second pressure detector.

3. The cooling system for a metallurgical furnace of claim 1, wherein a second flow regulating valve is provided on each of the water supply branch pipes.

4. The cooling system for a metallurgical furnace of claim 1, wherein a third detection device is disposed on each of the water supply branch pipes, the third detection device comprising a third flow detector.

5. The cooling system for a metallurgical furnace according to claim 1, further comprising a plurality of distribution troughs communicating with the second ends of the plurality of water supply branch pipes in a one-to-one correspondence, the first end of each water supply branch pipe communicating with the corresponding distribution trough;

the inspection system further comprises a water collecting tank, wherein the second end part of each confluence pipeline is connected with the water collecting tank, and the inspection pipeline is connected with the water collecting tank.

6. The cooling system for a metallurgical furnace according to claim 1, wherein the number of the return lines, the number of the cooling lines, and the number of the branch water supply lines are equal, and the return lines, the cooling lines, and the branch water supply lines communicate in a one-to-one correspondence.

7. The cooling system for a metallurgical furnace of claim 1, further comprising a control system, the control system comprising:

the inspection control module is connected with each flow direction control element and is used for controlling the inlet of each flow direction control element to be in switchable communication with one of the first outlet and the second outlet;

the analysis module is connected with the first detection device and the second detection device and is used for analyzing the detection data of the first detection device and the second detection device; and

and the flow control module is connected with the analysis module and the first flow regulating valve and is used for controlling the flow of the water supply branch pipe.

8. The cooling system for a metallurgical furnace of claim 7, wherein the control system further comprises:

the communication module is used for collecting the working condition information of the metallurgical furnace and transmitting the working condition information to the analysis module; and

and the receiving module is used for receiving the detection data of the first detection device and the second detection device and transmitting the detection data to the analysis module.

9. The cooling system for a metallurgical furnace of claim 8, wherein the control system further comprises an alarm module, the alarm module being coupled to the analysis module.

10. A metallurgical furnace including a cooling system, comprising:

a furnace body; and

the cooling system according to any one of claims 1 to 9, wherein the cooling jacket is installed in the furnace body.

11. A zone cooling control method for a metallurgical furnace, characterized in that the metallurgical furnace is the metallurgical furnace according to claim 10, the furnace body comprises a plurality of furnace body functional areas, and the plurality of furnace body functional areas correspond to the plurality of cooling areas one by one;

the control method comprises the following steps:

detecting the temperature of each return pipeline group by using the first detection device so as to obtain the average temperature value of each return pipeline group;

comparing the average temperature value of each of the return line groups with a first temperature setting value corresponding to the return line group, when the average temperature value of the return line group is equal to or greater than the corresponding first temperature setting value, determining that the flow rate of the cooling liquid in the cooling line group corresponding to the return line group is insufficient, increasing the flow rate of the cooling liquid in the water supply line group corresponding to the return line group so as to increase the flow rate of the cooling liquid in the cooling line group corresponding to the return line group, when the average temperature value of all the return line groups is equal to or greater than the corresponding first temperature setting value, determining that the flow rate of the cooling liquid in the water supply main is insufficient, increasing the flow rate of the cooling liquid in the water supply main so as to increase the flow rate of the cooling liquid in each of the cooling line groups, the first temperature set value is determined according to the temperature of the cooling liquid in the water supply main pipe detected by the second detection device and the cooling intensity requirement information of the furnace body functional area corresponding to the return pipeline group, and the cooling intensity requirement information of the furnace body functional area is determined according to the working condition information of the metallurgical furnace; and/or

Comparing the rising rate of the temperature average value of each of the return line groups with a first temperature change set value corresponding to the return line group, when the rising rate of the temperature average value of the return line group is equal to or greater than the first temperature change set value, determining that the flow rate of the cooling liquid in the cooling line group corresponding to the return line group is insufficient, increasing the flow rate of the cooling liquid in the water supply line corresponding to the return line group so as to increase the flow rate of the cooling liquid in the cooling line group corresponding to the return line group, and when the rising rate of the temperature average value of all the return line groups is equal to or greater than the first temperature change set value, determining that the flow rate of the cooling liquid in the water supply line group is insufficient, and increasing the flow rate of the cooling liquid in the water supply line group, so as to increase the flow of cooling liquid within each of said cooling circuit groups.

12. The method for zone cooling control in a metallurgical furnace of claim 11,

detecting the pressure of each return pipeline group by using the first detection device so as to obtain the average pressure value of each return pipeline group;

comparing the average pressure value for each of the return line sets with a first pressure set point corresponding to the return line set, when the average pressure value of the return line group is less than or equal to the corresponding first pressure set value, determining that the flow rate of the cooling liquid in the cooling pipe group corresponding to the return pipe group is insufficient, increasing the flow rate of the cooling liquid in the water supply branch pipe corresponding to the return pipe group, so as to increase the flow rate of the cooling liquid in the cooling line group corresponding to the return line group, when the average pressure value of all the return line sets is less than or equal to the corresponding first pressure set value, judging that the flow of the cooling liquid in the water supply main is insufficient, and increasing the flow of the cooling liquid in the water supply main so as to increase the flow of the cooling liquid in each cooling pipeline group; and/or

Comparing a rate of decrease of the pressure average value of each of the return line groups with a first pressure change set value corresponding to the return line group, when the rate of decrease of the pressure average value of the return line group is equal to or greater than the first pressure change set value, determining that a flow rate of the cooling liquid in the cooling line group corresponding to the return line group is insufficient, increasing the flow rate of the cooling liquid in the water supply line corresponding to the return line group so as to increase the flow rate of the cooling liquid in the cooling line group corresponding to the return line group, and when the rate of decrease of the pressure average value of all the return line groups is equal to or greater than the first pressure change set value, determining that the flow rate of the cooling liquid in the water supply line group is insufficient, and increasing the flow rate of the cooling liquid in the water supply line group, so as to increase the flow of cooling liquid within each of said cooling circuit groups.

13. The method for zone cooling control of a metallurgical furnace of claim 12,

detecting the flow of each return pipeline group by using the first detection device so as to obtain the flow of each return pipeline group;

and comparing the flow rate of each return pipeline group with the flow rate of the water supply branch pipe corresponding to the return pipeline group, and determining that the return pipeline group is in an abnormal state when the ratio of the flow rate of the return pipeline group to the flow rate of the water supply branch pipe corresponding to the return pipeline group is less than or equal to a first threshold value.

14. The method for zone cooling control of a metallurgical furnace according to any one of claims 11 to 13, wherein the step of controlling the zone cooling is performed in a batch mode,

comparing the temperature of each return pipeline with a second temperature set value corresponding to the return pipeline, and recording the serial number of the return pipeline when the temperature of the return pipeline is greater than or equal to the corresponding second temperature set value; and/or

And comparing the rising rate of the temperature of each return pipeline with a second temperature change set value corresponding to the return pipeline, and recording the serial number of the return pipeline when the rising rate of the temperature of the return pipeline is greater than or equal to the corresponding second temperature change set value.

15. The method for zone cooling control of a metallurgical furnace of claim 14,

and comparing the pressure reduction rate of each return pipeline with a second pressure change set value corresponding to the return pipeline, judging that a leakage point exists in the cooling pipeline corresponding to the return pipeline when the pressure reduction rate of the return pipeline is greater than or equal to the corresponding second pressure change set value and the pressure reduction rates of the other return pipelines belonging to the same return pipeline group as the return pipeline are less than the corresponding second pressure change set value, sending an alarm signal, and storing the alarm information in historical data.

16. The method for zone cooling control of a metallurgical furnace of claim 15,

comparing the flow of each return pipeline with a flow set value corresponding to the return pipeline, judging that a leakage point exists in the cooling pipeline corresponding to the return pipeline when the ratio of the flow of the return pipeline to the flow set value is smaller than or equal to a second threshold value, sending an alarm signal, and storing the alarm information in historical data; and/or

And comparing the flow rate of each return pipeline with a flow change set value corresponding to the return pipeline, judging that a leakage point exists in the cooling pipeline corresponding to the return pipeline when the flow rate of each return pipeline is greater than or equal to the corresponding flow change set value, sending an alarm signal, and storing the alarm information in historical data.

17. A computer-readable storage medium, on which a computer program is stored, which, when executed, carries out the steps of the method according to any one of claims 11-16.

18. An electronic device, comprising:

a processor and a memory;

the memory stores a computer program;

the processor is arranged to carry out the method of any one of claims 11 to 16 when running the computer program.