Method and device for detecting bonding and flow loss of hydrogen metallurgy reactor

Abstract

The invention relates to a method and device for detecting bonding and flow loss of a hydrogen metallurgy reactor, the device comprises a pressure detection instrument, a temperature detection instrument, a material weighing device a and a material weighing device b, the material weighing device a is installed at a feeding pipe of the hydrogen metallurgy reactor, and the material weighing device b is installed at a discharging pipe at the bottom of the hydrogen metallurgy reactor; a plurality of pressure detection instruments are mounted at the bottom of the hydrogen metallurgy reactor; the plurality of temperature detection instruments are respectively arranged at the middle part, the lower part and the bottom of the hydrogen metallurgy reactor; and the pressure detection instrument, the temperature detection instruments, the material weighing device a and the material weighing device b are all connected with the terminal display control system. According to the method, the temperature change is detected at the middle-lower section of the hydrogen metallurgy reactor, the pressure change is detected at the upper part of the hydrogen metallurgy reactor, and the proportion change of the feeding amount and the discharging amount is monitored at the same time, so that the bonding and flow loss conditions of the reactor are quickly speculated, pre-judgment is performed in advance, corresponding measures are taken in advance, and bonding and flow loss deterioration of the reactor is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen metallurgy, and in particular to a method and a device for detecting adhesion loss in a hydrogen metallurgical reactor. Background Art

[0002] The hydrogen metallurgical ironmaking process has the advantages of directly using iron ore powder, not relying on coking coal resources, having good mass and heat transfer conditions, and being low in carbon. It provides the possibility for the rational use of domestic low-grade, composite symbiotic ores and solving the tight supply of iron ore resources. However, the system still faces the problem of strong metal iron-metal iron adhesion at the particle contact interface during reduction during operation, which can cause adhesion and flow loss, leading to system blockage. At the same time, the adhesion and flow loss phenomenon cannot be directly observed and can only be determined when the adhesion and flow loss phenomenon gradually worsens and leads to the inability to produce normally. At the same time, the later the stage, the more difficult it is to handle. Summary of the invention

[0003] The present invention provides a method and device for detecting adhesion loss in a hydrogen metallurgical reactor. By respectively setting temperature measuring points in the middle and lower sections of the hydrogen metallurgical reactor to detect the temperature change inside the reactor, detecting the gas pressure change inside the reactor in the circumferential direction of the upper part of the hydrogen metallurgical reactor, and monitoring the change in the ratio of the feed amount and the discharge amount at the same time, the adhesion loss condition of the reactor can be quickly inferred, which is helpful to make a prediction in advance and take corresponding measures in advance to avoid the deterioration of the adhesion loss of the reactor.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A method for detecting adhesion loss in a hydrogen metallurgical reactor comprises the following steps:

[0006] 1) Install no less than 4 pressure detection instruments in the circumferential direction of the bottom of the hydrogen metallurgical reactor, install no less than 4 temperature detection instruments in the circumferential direction of the middle part of the hydrogen metallurgical reactor, install no less than 4 temperature detection instruments in the circumferential direction of the lower part of the hydrogen metallurgical reactor, install no less than 4 temperature detection instruments in the circumferential direction of the bottom of the hydrogen metallurgical reactor, and install a material weighing device a at the feed pipe of the hydrogen metallurgical reactor, and install a material weighing device b at the discharge pipe at the bottom of the hydrogen metallurgical reactor.

[0007] 2) The material weighing device a measures the feed flow m1 of the hydrogen metallurgical reactor in real time, and the material weighing device b measures the discharge flow m2 of the hydrogen metallurgical reactor in real time; the real-time measurement values ​​of m1 and m2 are displayed on the terminal display control system, and the terminal display control system calculates and draws the M1 / M2 ratio curve, wherein M1 is the cumulative measurement value of m1 in 10 to 60 minutes, and M2 is the cumulative measurement value of m2 in 10 to 60 minutes.

[0008] 3) The pressure detection instrument 3 detects the pressure of P1~P i, i≥4; the real-time pressure numerical signal is transmitted to the terminal display control system, and the terminal display control system draws the pressure P1~P in real time i Curve; the temperature detection instrument in the middle of the hydrogen metallurgical reactor detects the temperature of Ta1~Ta i , i≥4; the real-time temperature numerical signal is transmitted to the terminal display control system, and the temperature Ta1~Ta is drawn in real time in the terminal display control system i Curve; the temperature detection instrument at the bottom of the hydrogen metallurgical reactor detects the temperature of Tb1~Tb i , i≥4; the real-time temperature numerical signal is transmitted to the terminal display control system, and the temperature Tb1~Tb is drawn in real time in the terminal display control system i Curve; The temperature detection instrument at the bottom of the hydrogen metallurgical reactor detects the temperature of Tc1~Tc i , i≥4; the real-time temperature numerical signal is transmitted to the terminal display control system, and the temperature Tc1~Tc is drawn in real time in the terminal display control system i curve.

[0009] 4) M2 / M1 ratio curve, P1~P i Historical curve, Ta1~Ta i Historical curve, Tb1~Tb i Historical curve and Tc1~Tc i The historical curve tends to be horizontal, indicating that there is no adhesion and flow loss phenomenon in the hydrogen metallurgical reactor;

[0010] When the M2 / M1 ratio curve rises or falls sharply, and P1~P i The historical curve shows a bulge or notch with a pressure difference of more than 1 kPa, Ta1~Ta i Historical curve, Tb1~Tb i Historical curve and Tc1~Tc i If there are bulges or notches with a temperature difference of more than 20°C on the historical curve, it can be judged that the hydrogen metallurgical reactor has a sticking and flow loss phenomenon.

[0011] The pressure detection instruments are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor.

[0012] The temperature detection instruments in the middle of the hydrogen metallurgical reactor are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor.

[0013] The temperature detection instruments at the lower part of the hydrogen metallurgical reactor are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor.

[0014] The temperature detection instruments at the bottom of the hydrogen metallurgical reactor are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor.

[0015] A device used in a method for detecting adhesion loss in a hydrogen metallurgical reactor comprises a pressure detection instrument, a temperature detection instrument, a material weighing device a, and a material weighing device b, wherein the material weighing device a is installed at a feed pipe of the hydrogen metallurgical reactor, and the material weighing device b is installed at a discharge pipe at the bottom of the hydrogen metallurgical reactor; a plurality of the pressure detection instruments are installed at the upper part of the hydrogen metallurgical reactor and are evenly distributed in a circumferential direction; a plurality of the temperature detection instruments are respectively installed at the middle part, the lower part and the bottom part of the hydrogen metallurgical reactor, and temperature detection instruments at the same height are evenly distributed in a circumferential direction of the hydrogen metallurgical reactor, and the pressure detection instrument, the temperature detection instrument, the material weighing device a, and the material weighing device b are all connected to a terminal display control system.

[0016] The pressure detection instrument is installed at the bottom of the hydrogen metallurgical reactor and above the gas distributor of the hydrogen metallurgical reactor.

[0017] There are no less than 4 pressure detection instruments, and no less than 4 temperature detection instruments installed at the same height.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] A method and device for detecting adhesion loss in a hydrogen metallurgical reactor. Temperature measuring points are respectively set in the middle and lower sections of the hydrogen metallurgical reactor to detect temperature changes inside the reactor, and gas pressure changes inside the reactor are detected in the circumferential direction of the upper part of the hydrogen metallurgical reactor. At the same time, changes in the proportion of feed amount and discharge amount are monitored. The adhesion loss condition of the reactor can be quickly inferred, which is helpful for early prediction and taking corresponding measures in advance to avoid the deterioration of the adhesion loss of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a simplified structural diagram of the device of the present invention.

[0021] Figure 2 It is a curve diagram of the M1 / M2 ratio of Example 1 of the present invention.

[0022] Figure 3 It is a pressure curve diagram of P1 to P4 of Example 1 of the present invention.

[0023] Figure 4 It is a temperature curve diagram of Ta1~Ta4 in the circumferential direction of Example 1 of the present invention.

[0024] Figure 5 It is a circumferential temperature curve diagram of Tb1 to Tb4 in Example 1 of the present invention.

[0025] Figure 6 It is a circumferential temperature curve diagram of Tc1~Tc4 of Example 1 of the present invention.

[0026] Figure 7It is a curve diagram of the M1 / M2 ratio of Example 2 of the present invention.

[0027] Figure 8 It is a pressure curve diagram of P1 to P4 of Example 2 of the present invention.

[0028] Fig. 9 It is a temperature curve diagram of Ta1~Ta4 in the circumferential direction of Example 2 of the present invention.

[0029] Fig.10 It is a circumferential temperature curve diagram of Tb1 to Tb4 in Example 2 of the present invention.

[0030] Fig.11 It is a circumferential temperature curve diagram of Tc1~Tc4 of Example 2 of the present invention.

[0031] In the figure: 1- material weighing device a; 2- hydrogen metallurgical reactor; 3- pressure detection instrument; 4- temperature detection instrument; 5- material weighing device b; 6- terminal display control system. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the specific implementation methods of the present invention are further described below in conjunction with embodiments. The following embodiments are used to specifically illustrate the contents of the present invention. These embodiments are only general descriptions of the contents of the present invention and do not limit the contents of the present invention.

[0033] like Figure 1 As shown, a method for detecting adhesion loss in a hydrogen metallurgical reactor comprises the following steps:

[0034] 1) Install no less than 4 pressure detection instruments 3 in the circumferential direction of the bottom of the hydrogen metallurgical reactor 2, install no less than 4 temperature detection instruments 4 in the circumferential direction of the middle part of the hydrogen metallurgical reactor 2, install no less than 4 temperature detection instruments 4 in the circumferential direction of the lower part of the hydrogen metallurgical reactor 2, install no less than 4 temperature detection instruments 4 in the circumferential direction of the bottom of the hydrogen metallurgical reactor 2, and install a material weighing device a1 at the feed pipe of the hydrogen metallurgical reactor 2, and install a material weighing device b5 at the discharge pipe at the bottom of the hydrogen metallurgical reactor 2.

[0035] 2) The material weighing device a1 measures the feed flow m1 of the hydrogen metallurgical reactor 2 in real time, and the material weighing device b5 measures the discharge flow m2 of the hydrogen metallurgical reactor in real time; the real-time measurement values ​​of m1 and m2 are displayed on the terminal display control system, and the terminal display control system calculates and draws the M1 / M2 ratio curve, wherein M1 is the cumulative measurement value of m1 in 10 to 60 minutes, and M2 is the cumulative measurement value of m2 in 10 to 60 minutes.

[0036] 3) The pressure detection instrument 3 detects the pressure of P1~P i, i≥4; the real-time pressure numerical signal is transmitted to the terminal display control system 6, and the terminal display control system draws the pressure P1~P in real time i Curve; The temperature detection instrument 4 in the middle of the hydrogen metallurgical reactor 2 detects the temperature as Ta1~Ta i , i≥4; the real-time temperature numerical signal is transmitted to the terminal display control system 6, and the temperature Ta1~Ta is drawn in real time in the terminal display control system i Curve; The temperature detection instrument 4 at the bottom of the hydrogen metallurgical reactor 2 detects the temperature as Tb1~Tb i , i≥4; the real-time temperature numerical signal is transmitted to the terminal display control system 6, and the temperature Tb1~Tb is drawn in real time in the terminal display control system 6 i Curve; The temperature detection instrument 4 at the bottom of the hydrogen metallurgical reactor 2 detects the temperature as Tc1~Tc i , i≥4; the real-time temperature numerical signal is transmitted to the terminal display control system 6, and the temperature Tc1~Tc is drawn in real time in the terminal display control system 6 i curve.

[0037] 4) M2 / M1 ratio curve, P1~P i Historical curve, Ta1~Ta i Historical curve, Tb1~Tb i Historical curve and Tc1~Tc i The historical curve tends to be horizontal, indicating that there is no adhesion and flow loss phenomenon in the hydrogen metallurgical reactor;

[0038] When the M2 / M1 ratio curve rises or falls sharply, and P1~P i The historical curve shows a bulge or notch with a pressure difference of more than 1 kPa, Ta1~Ta i Historical curve, Tb1~Tb i Historical curve and Tc1~Tc i If there are bulges or notches with a temperature difference of more than 20°C on the historical curve, it can be judged that the hydrogen metallurgical reactor has a sticking and flow loss phenomenon.

[0039] If only individual curves change, you can purge and recalibrate the instrument and then observe it, and then make a judgment according to step 4).

[0040] The pressure detection instruments 3 are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor 2 .

[0041] The temperature detection instruments 4 in the middle of the hydrogen metallurgical reactor 2 are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor 2 .

[0042] The temperature detection instruments 4 at the lower part of the hydrogen metallurgical reactor 2 are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor 2 .

[0043] The temperature detection instruments 4 at the bottom of the hydrogen metallurgical reactor 2 are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor 2 .

[0044] A method for detecting adhesion loss in a hydrogen metallurgical reactor adopts a device, comprising a pressure detection instrument 3, a temperature detection instrument 4, a material weighing device a1, and a material weighing device b5, wherein the material weighing device a1 is installed at the feed pipe of the hydrogen metallurgical reactor 2, and the material weighing device b5 is installed at the discharge pipe at the bottom of the hydrogen metallurgical reactor 2; a plurality of the pressure detection instruments 3 are installed at the bottom of the hydrogen metallurgical reactor 2 and are evenly distributed in the circumferential direction; a plurality of the temperature detection instruments 4 are respectively installed at the middle, lower and bottom of the hydrogen metallurgical reactor 2, and the temperature detection instruments 4 at the same height are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor 2, and the pressure detection instrument 3, the temperature detection instrument 4, the material weighing device a1, and the material weighing device b5 are all connected to a terminal display control system 6.

[0045] There are no less than 4 pressure detection instruments, and no less than 4 temperature detection instruments installed at the same height.

[0046] The pressure detection instrument 3 is installed at the bottom of the hydrogen metallurgical reactor 2 and above the gas distributor of the hydrogen metallurgical reactor 2 .

[0047] Embodiment 1:

[0048] A method for detecting adhesion loss in a hydrogen metallurgical reactor comprises the following steps:

[0049] 1) Four pressure detecting instruments 3 are installed in the circumferential direction at the bottom of the hydrogen metallurgical reactor 2 and above the gas distributor of the hydrogen metallurgical reactor 2, four temperature detecting instruments 4 are installed in the circumferential direction in the middle of the hydrogen metallurgical reactor 2, four temperature detecting instruments 4 are installed in the circumferential direction in the lower part of the hydrogen metallurgical reactor 2, and four temperature detecting instruments 4 are installed in the circumferential direction at the bottom of the hydrogen metallurgical reactor 2, and a material weighing device a1 is installed at the feed pipe of the hydrogen metallurgical reactor 2, and a material weighing device b5 is installed at the discharge pipe at the bottom of the hydrogen metallurgical reactor.

[0050] 2) The material weighing device a1 measures the feed flow m1 of the hydrogen metallurgical reactor 2 in real time, and the material weighing device b5 measures the discharge flow m2 of the hydrogen metallurgical reactor 2 in real time; the terminal display control system 6 displays the real-time measurement values ​​of m1 and m2, and calculates and draws the M1 / M2 ratio curve, where M1 is the cumulative measurement value of m1 in 20 minutes, and M2 is the cumulative measurement value of m2 in 20 minutes. The M1 / M2 ratio curve is as follows Figure 2 As shown, the curve is basically horizontal.

[0051] 3) The pressure detection instrument 3 detects the pressure of P1~P i, i = 4; the real-time pressure numerical signal is transmitted to the terminal display control system 6, and the terminal display control system 6 draws the pressure P1~P4 curve in real time; the temperature detection instrument 4 in the middle of the hydrogen metallurgical reactor 2 detects the temperature Ta1~Ta i , i = 4; the real-time temperature numerical signal is transmitted to the terminal display control system 6, and the temperature Ta1~Ta4 curve is drawn in real time in the terminal display control system; the temperature detection instrument 4 at the bottom of the hydrogen metallurgical reactor 2 detects the temperature Tb1~Tb i , i = 4; the real-time temperature numerical signal is transmitted to the terminal display control system 6, and the temperature Tb1~Tb4 curve is drawn in real time in the terminal display control system 6; the temperature detection instrument 4 at the bottom of the hydrogen metallurgical reactor 2 detects the temperature as Tc1~Tc i , i=4; the real-time temperature numerical signal is transmitted to the terminal display control system 6, and the terminal display control system 6 draws the temperature Tc1~Tc4 curves in real time.

[0052] 4) M1 / M2 ratio curve Figure 2 As shown, the curve is basically horizontal. i Historical curve Figure 3 、Ta1~Ta i Historical curve Figure 4 、Tb1~Tb i Historical curve Figure 5 、Tc1~Tc i Historical curve Figure 6 , all the above curves tend to be horizontal, proving that there is no adhesion and flow loss phenomenon in the hydrogen metallurgical reactor during this production stage.

[0053] Embodiment 2:

[0054] After the hydrogen metallurgical reactor of Example 1 was operated for a period of time, the test results began to change as follows:

[0055] The M1 / M2 ratio curve is as follows Figure 7 As shown in Figure 1, the M1 / M2 ratio curve gradually rose from the original horizontal line and gradually increased without any signs of decline. In the later period, the M2 / M1 ratio curve rose sharply. Figure 8 , the P1~P4 history curve shows a bulge of pressure difference above 1kPa, see Figure 9-11 The Ta1~Ta4 historical curves, Tb1~Tb4 historical curves and Tc1~Tc4 historical curves respectively show temperature difference bumps of more than 20°C, which means that the hydrogen metallurgical reactor has adhesion and flow loss phenomenon in this production stage.

Claims

1. A method for detecting adhesion loss in a hydrogen metallurgical reactor, characterized in that: The method comprises the following steps: 1) Install no less than 4 pressure detection instruments in the circumferential direction of the bottom of the hydrogen metallurgical reactor, install no less than 4 temperature detection instruments in the circumferential direction of the middle part of the hydrogen metallurgical reactor, install no less than 4 temperature detection instruments in the circumferential direction of the lower part of the hydrogen metallurgical reactor, install no less than 4 temperature detection instruments in the circumferential direction of the bottom of the hydrogen metallurgical reactor, and install a material weighing device a at the feed pipe of the hydrogen metallurgical reactor, and install a material weighing device b at the discharge pipe at the bottom of the hydrogen metallurgical reactor; 2) The material weighing device a measures the feed flow rate m1 of the hydrogen metallurgical reactor in real time, and the material weighing device b measures the discharge flow rate m2 of the hydrogen metallurgical reactor in real time; the real-time measurement values ​​of m1 and m2 are displayed on the terminal display control system, and the terminal display control system calculates and draws the M1 / M2 ratio curve, where M1 is the cumulative measurement value of m1 in 10 to 60 minutes, and M2 is the cumulative measurement value of m2 in 10 to 60 minutes; 3) The pressure detection instrument 3 detects the pressure of P1~P i , i≥4; the terminal display control system draws the pressure P1~P in real time i Curve; the temperature detection instrument in the middle of the hydrogen metallurgical reactor detects the temperature of Ta1~Ta i , i≥4; the terminal display control system draws the temperature Ta1~Ta in real time i Curve; the temperature detection instrument at the bottom of the hydrogen metallurgical reactor detects the temperature of Tb1~Tb i , i≥4; the terminal display control system draws the temperature Tb1~Tb in real time i Curve; The temperature detection instrument at the bottom of the hydrogen metallurgical reactor detects the temperature of Tc1~Tc i , i≥4; the terminal display control system draws the temperature Tc1~Tc in real time i curve; 4) M2 / M1 ratio curve, P1~P i Historical curve, Ta1~Ta i Historical curve, Tb1~Tb i Historical curve and Tc1~Tc i The historical curve tends to be horizontal, indicating that there is no adhesion and flow loss phenomenon in the hydrogen metallurgical reactor; When the M2 / M1 ratio curve rises or falls, and P1~P i The historical curve shows a bulge or notch with a pressure difference of more than 1 kPa, Ta1~Ta i Historical curve, Tb1~Tb i Historical curve and Tc1~Tc i If there are bulges or notches with a temperature difference of more than 20°C on the historical curve, it can be judged that the hydrogen metallurgical reactor has a sticking and flow loss phenomenon.

2. A method for detecting adhesion loss in a hydrogen metallurgical reactor according to claim 1, characterized in that: The pressure detection instruments are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor.

3. A method for detecting adhesion loss in a hydrogen metallurgical reactor according to claim 1, characterized in that: The temperature detection instruments in the middle of the hydrogen metallurgical reactor are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor.

4. A method for detecting adhesion loss in a hydrogen metallurgical reactor according to claim 1, characterized in that: The temperature detection instruments at the lower part of the hydrogen metallurgical reactor are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor.

5. A method for detecting adhesion loss in a hydrogen metallurgical reactor according to claim 1, characterized in that: The temperature detection instruments at the bottom of the hydrogen metallurgical reactor are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor.

6. A device used in the method for detecting adhesion loss in a hydrogen metallurgical reactor as claimed in any one of claims 1 to 5, characterized in that: It comprises a pressure detection instrument, a temperature detection instrument, a material weighing device a and a material weighing device b. The material weighing device a is installed at the feed pipe of the hydrogen metallurgical reactor, and the material weighing device b is installed at the discharge pipe at the bottom of the hydrogen metallurgical reactor; a plurality of the pressure detection instruments are installed at the bottom of the hydrogen metallurgical reactor and are evenly distributed in the circumferential direction; a plurality of the temperature detection instruments are respectively installed at the middle, lower and bottom of the hydrogen metallurgical reactor, and the temperature detection instruments at the same height are evenly distributed in the circumferential direction of the hydrogen metallurgical reactor, and the pressure detection instrument, the temperature detection instrument, the material weighing device a and the material weighing device b are all connected to a control system.

7. A method for detecting adhesion loss in a hydrogen metallurgical reactor according to claim 6, characterized in that: The pressure detection instrument is installed at the bottom of the hydrogen metallurgical reactor and above the gas distributor of the hydrogen metallurgical reactor.

8. A method for detecting adhesion loss in a hydrogen metallurgical reactor according to claim 6, characterized in that: There are no less than 4 pressure detection instruments, and no less than 4 temperature detection instruments installed at the same height.

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