On-line monitoring system for molten copper of side-blown converter

Abstract

The utility model provides an online monitoring system for molten copper of a side-blown converter, which comprises a radioactive source capable of emitting radioactive rays, a receiver capable of receiving the radioactive rays, a converter electrically connected with the receiver, a controller electrically connected with the converter and a display electrically connected with the controller. Wherein the radioactive source is arranged in the lead protection cylinder, and the lead protection cylinder is provided with a ray outlet; the radioactive source and the receiver are located on the two sides of the side-blown converter respectively, the radioactive source is located above the highest position of the liquid level of molten copper, and the receiver is located below the lowest position of the liquid level of the molten copper. The copper liquid level monitoring device solves the problem that in the prior art, copper liquid level monitoring is not accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to side blown furnace copper liquid monitoring equipment technical field especially relates to a kind of side blown furnace copper liquid on-line monitoring system. BACKGROUND

[0002] Side blown furnace technology is a new type of smelting technology, which can be used for copper smelting. Specifically, it sets tuyere on the side of the furnace and blows oxygen-rich air into the furnace to make the furnace charge undergo oxidation, reduction and slagging chemical reactions at high temperature, thereby extracting copper. The copper liquid height in the side blown furnace bath is a very important production technical index, which directly affects the distribution of the temperature field in the bath and also affects the flow and distribution of the gas in the bath. During the smelting process in the side blown furnace bath, appropriate copper liquid height is beneficial to the uniform transfer of heat, the separation of slag and copper, and the improvement of smelting efficiency and the reduction of energy consumption. In the prior art, the monitoring methods for copper liquid level mainly include the following:

[0003] (1) Observation method: observing the shape of the melt in the furnace from the observation port and the flow and outflow of the slag from the slag outlet, but there are too many influencing factors and the deviation is large;

[0004] (2) Calculation method: according to the capacity of the side blown furnace, the charge amount, and the material balance and chemical reaction principle in the smelting process, the approximate height of the copper liquid is calculated, but the composition of solid waste raw materials is complex, the composition of raw materials changes greatly, and the material balance and chemical reaction are difficult to determine effectively, which leads to the difficulty of implementing this method in the field;

[0005] (3) Numerical simulation method: using computer simulation software to simulate the smelting process in the side blown furnace. This method can predict the change of copper liquid height under different operating conditions and provide reference for production operation, but there are differences between simulation and actual production, and the materials entering the furnace are too complex to be accurately simulated, resulting in large errors in the calculation of copper liquid height.

[0006] Currently, the furnace operators mostly judge the copper liquid height based on experience, which leads to the problem of good and bad production technical indicators of the side blown furnace, inaccurate judgment of copper tapping time, etc., resulting in insufficient or untimely copper tapping, and copper liquid flowing out of the slag port, which not only affects the production yield but also has a great safety hazard. INVENTION CONTENTS

[0007] In view of the deficiencies in the prior art, the utility model provides a side blown furnace copper liquid on-line monitoring system, which solves the problem of inaccurate copper liquid level monitoring in the prior art.

[0008] According to the embodiment of the utility model, a kind of side-blown furnace copper liquid on-line monitoring system, it includes the radioactive source that can emit radioactive rays, and the receiver that can receive radioactive rays, and with the converter that receiver is electrically connected, with the controller that converter is electrically connected, controller is further electrically connected with display, wherein radioactive source is arranged in lead protection cylinder, lead protection cylinder is opened with ray exit;Radioactive source and receiver are located at the two sides of side-blown furnace respectively, wherein the setting position of radioactive source is above the highest position of copper liquid level, and the setting position of receiver is below the lowest position of copper liquid level.

[0009] In the above embodiment, radioactive rays are emitted in an inclined manner, penetrate into the side-blown furnace, then pass through the copper liquid and the side-blown furnace, are received by the receiver, the receiver transmits signals to the controller, and finally the display displays. In the whole process, when the radioactive rays pass through the substance, photons are continuously absorbed, and the energy intensity meets the rule: I = I O e －μh , wherein: I O is the intensity of the incident rays, I is the intensity of the rays after passing through the medium, μ is the absorption coefficient of the medium to the rays, and h is the thickness of the medium. According to the above formula, the thickness h of the measured medium can be obtained by measuring the intensity I of the rays after passing through the medium. This is the working principle of the radioactive material level meter. Then the liquid level height can be converted, which is more accurate, more convenient and safe, and solves the problem of inaccurate copper liquid level monitoring in the prior art.

[0010] Further, the lead protection cylinder is fixedly connected with a first mounting bracket, and the first mounting bracket is detachably connected with the side surface of the side-blown furnace.

[0011] Further, the first mounting bracket is connected with the first mounting disc on the side-blown furnace by screws.

[0012] Further, the receiver is fixedly connected with a second mounting bracket, and the second mounting bracket is detachably connected with the side surface of the side-blown furnace.

[0013] Further, the second mounting bracket is connected with the second mounting disc on the side-blown furnace by screws.

[0014] Further, a first fan for blowing the lead protection cylinder is further installed beside the first mounting bracket.

[0015] Further, a second fan for blowing the receiver is further installed beside the second mounting bracket.

[0016] Further, a guide cylinder is fixedly connected to the lead protection cylinder, surrounds the ray exit, and faces the receiver.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] Through the side-blown furnace and the copper liquid inside, the radioactive rays pass through the material, and the photons are continuously absorbed when the radioactive rays pass through the material. The energy intensity conforms to the rule: I=I O e －μh The thickness h of the measured medium can be obtained by measuring the ray intensity I after passing through the medium. This is the working principle of the radioactive material level meter. Then, the liquid level height can be converted, which is more accurate, more convenient and safe, and solves the problem of inaccurate copper liquid level monitoring in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application.

[0020] In the above drawings:

[0021] The radioactive source 1, the receiver 2, the converter 3, the controller 4, the display 5, the lead protection cylinder 6, the ray outlet 7, the side-blown furnace 8, the guide cylinder 9, the first mounting frame 10, the first mounting disc 11, the second mounting frame 12, and the second mounting disc 13. DETAILED DESCRIPTION

[0022] The technical solutions in the present application will be further described below in combination with the drawings and examples.

[0023] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0024] In the exemplary embodiment, as Figure 1As shown, the embodiment provides a side-blown furnace copper liquid on-line monitoring system, which comprises a radioactive source 1 (such as a gamma ray source) capable of emitting radioactive rays, a receiver 2 capable of receiving radioactive rays, a converter 3 electrically connected with the receiver 2, and a controller 4 electrically connected with the converter 3, and the controller 4 is further electrically connected with a display 5, wherein the radioactive source 1 is arranged in a lead protection cylinder 6, and a ray outlet 7 is formed on the lead protection cylinder 6; the radioactive source 1 and the receiver 2 are respectively arranged on the two sides of a side-blown furnace 8, wherein the radioactive source 1 is arranged above the highest position of the copper liquid level, and the receiver 2 is arranged below the lowest position of the copper liquid level, and the controller 4 is a computer with the display 5; after the radioactive rays emitted by the radioactive source 1 pass through the side-blown furnace 8 and the copper liquid, part of the energy is absorbed by the copper liquid, and the remaining energy is received by the receiver 2; the receiver 2 transmits the ray signal (light signal) to the signal converter 3, the signal converter 3 converts the light signal into an electric signal, transmits the electric signal to the computer, and displays the liquid level height on the display 5 after calculation, thereby realizing on-line monitoring of the copper liquid level.

[0025] In the above embodiment, the radioactive rays are emitted in an inclined manner, penetrate into the side-blown furnace 8, then pass through the copper liquid and the side-blown furnace 8 again, are received by the receiver 2, and are finally displayed on the display 5 through the controller 4. During the whole process, when the radioactive rays pass through the medium, the photons are continuously absorbed, and the energy intensity meets the rule: I = I O e －μh , wherein I O represents the ray intensity before entering the medium, I represents the ray intensity after passing through the medium, μ represents the absorption coefficient of the medium to the ray, and h represents the thickness of the medium. According to the above formula, the thickness h of the measured medium can be obtained by measuring the ray intensity I after passing through the medium, which is the working principle of the radioactive material level meter. Then the liquid level height can be converted, which is more accurate, more convenient and safe, and solves the problem of inaccurate copper liquid level monitoring in the prior art.

[0026] Further, the lead protection cylinder 6 is arranged to protect the radioactive source 1, and warning signs need to be arranged around the lead protection cylinder 6. The lead protection cylinder 6 is fixedly connected with a first mounting frame 10, and the first mounting frame 10 is detachably connected with the side surface of the side-blown furnace 8. Specifically, a first mounting disc 11 can be arranged on the side-blown furnace 8, and the first mounting frame 10 is fixed on the first mounting disc 11 by screws.

[0027] Similarly, the receiver 2 is fixedly connected with a second mounting frame 12, and the second mounting frame 12 is detachably connected with the side surface of the side-blown furnace 8. Specifically, a second mounting disc 13 can be arranged on the side-blown furnace 8, and the second mounting frame 12 is fixed on the second mounting disc 13 by screws, thereby realizing mounting of the radioactive source 1 and the receiver 2.

[0028] Further, in order to reduce the influence of high temperature working environment of the side-blown furnace 8 on the radioactive source 1 and the receiver 2, a first air blower and a second air blower can be installed beside the first mounting frame 10 and the second mounting frame 12 respectively to blow air to them.

[0029] In more detail, a guide cylinder 9 is also fixedly connected to the lead protection cylinder 6 and surrounds the radiation outlet 7 and faces the receiver 2, and the guide cylinder 9 can also be made of lead.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A side-blown furnace copper liquid on-line monitoring system, characterized in that, The application relates to a radiation source capable of emitting radioactive rays, a receiver capable of receiving the radioactive rays, a converter electrically connected with the receiver, and a controller electrically connected with the converter, wherein the controller is further electrically connected with a display, the radiation source is arranged in a lead protection cylinder, a ray outlet is arranged on the lead protection cylinder, the radiation source and the receiver are respectively arranged on two sides of a side-blown furnace, the radiation source is arranged above the highest position of a copper liquid level, and the receiver is arranged below the lowest position of the copper liquid level.

2. The side-blown furnace copper liquid on-line monitoring system of claim 1, wherein, The lead protection cylinder is fixedly connected with a first mounting frame, and the first mounting frame is detachably connected with the side of the side-blown furnace.

3. The side-blown furnace copper liquid on-line monitoring system of claim 2, wherein, The side-blown furnace is fixedly connected with a first mounting disc, and the first mounting frame is connected with the first mounting disc through screws.

4. The side-blown furnace copper liquid on-line monitoring system of claim 1, wherein, The receiver is fixedly connected with a second mounting frame, and the second mounting frame is detachably connected with the side of the side-blown furnace.

5. The side-blown furnace copper liquid on-line monitoring system of claim 4, wherein, The side-blown furnace is fixedly connected with a second mounting disc, and the second mounting frame is connected with the second mounting disc through screws.

6. The side-blown furnace copper liquid on-line monitoring system of claim 2, wherein, A first air blower for blowing air on the lead protection cylinder is further arranged beside the first mounting frame.

7. The side-blown furnace copper liquid on-line monitoring system of claim 4, wherein, A second air blower for blowing air on the receiver is further arranged beside the second mounting frame.

8. The side-blown furnace copper liquid on-line monitoring system according to any one of claims 1-7, characterized in that, A guide cylinder is fixedly connected on the lead protection cylinder, surrounds the ray outlet, and faces the receiver.

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