State detection system for lining bricks of autoclave

Abstract

The utility model relates to the technical field of pressurized hydrometallurgy, in particular to an autoclave lining brick state detection system. The system comprises an autoclave, an autoclave platform, at least two thermal imaging cameras, angle iron, an infrared probe and a monitoring system, the at least two thermal imaging cameras are respectively fixed at the inclined upper part and the inclined lower part of an autoclave body and are used for overlooking or looking up the whole autoclave body, the infrared probe is fixed on the angle iron, and the infrared probe is fixed on the angle iron. The thermal imaging camera and the infrared probe are in electric control connection with the monitoring system by aiming at the middle part of a kettle body of the autoclave, a kettle cover of the autoclave or a tube plate opening of the autoclave, so that the temperature of each part of the whole kettle body can be monitored in real time all the time, and the thermal imaging camera and the infrared probe are interlocked with a set temperature; and when the temperature exceeds the set temperature, the kettle can be opened for inspection and treatment in time when abnormity is found.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pressurized hydrometallurgy, in particular to a pressurized kettle lining brick state detection system. BACKGROUND

[0002] In the nickel pressurized leaching process, the horizontal pressurized kettle used has steel lining lead and steel lining titanium, and because the oxygen environment content required by the pressurized leaching process is high, in order to avoid the self-ignition phenomenon of titanium in the oxygen-rich environment, the pressurized kettle used in the leaching in the oxygen-rich environment adopts steel lining lead, and the lining bricks inside are mainly used to reduce the heat of the fluid and gas in the kettle to the lining lead layer to prevent the lining lead layer from overheating and creeping, and the lining brick layer in the kettle should be used for about 10 years without problems such as falling off, cracking, and mortar falling off under ideal environment and construction conditions, but in the actual construction and production process, it is difficult to ensure the perfect operation of each step. If the lining brick layer in the kettle falls off and other problems, it will affect the corrosion resistance of the outer shell, and in serious cases, it may even cause the kettle body steel shell to be corroded and penetrated by the ore slurry in the kettle, causing a major accident.

[0003] The existing pressurized kettle method for judging the lining brick condition in the pressurized kettle mainly includes:

[0004] (1) Direct observation: if the lining brick condition in the kettle needs to be directly observed, the kettle cover needs to be opened to enter the kettle to check the lining brick condition, which consumes time and labor and affects the continuity of production.

[0005] (2) Manual point measurement: the lining brick condition in the kettle is judged by the surface temperature of the kettle body, which needs to be divided into several areas by manual point measurement, and the point measurement is carried out by the staff with a temperature measuring gun. The point measurement is time-consuming and labor-intensive. If local lining bricks fall off, the area may not be accurately inspected and identified due to the division of the point measurement area, and the early treatment opportunity is missed. If the frequency of manual point measurement is too high, it will consume a lot of time and labor, and if the frequency is too low, it will not be able to effectively monitor the situation. INVENTION CONTENTS

[0006] In order to solve the above-mentioned problems in the existing method for judging the lining brick condition in the pressurized kettle, a pressurized kettle lining brick state detection system is provided, which can accurately arrange all point measurement positions, monitor all time periods, and save labor, and the specific technical scheme is as follows:

[0007] A kind of autoclave lining brick state detection system, comprising: autoclave, autoclave platform, thermal imaging camera, angle iron, infrared probe and monitoring system, the autoclave platform is fixed in autoclave kettle body middle part, the thermal imaging camera at least two, respectively fixed in autoclave kettle body oblique upper side and oblique lower side, the angle iron is fixed in autoclave platform and / or autoclave below ground, the angle iron at least has two groups, the two groups of angle iron are symmetrical in the direction along autoclave platform, at least three infrared probes are fixed on each angle iron, the kettle body middle part of autoclave, autoclave cover or autoclave tube plate mouth all have the infrared probe directly opposite, the thermal imaging camera and the infrared probe are electrically connected with detection system.

[0008] Further, the thermal imaging camera and infrared probe are connected with temperature controller.

[0009] The utility model discloses the beneficial effects of the utility model: the thermal imaging camera and the infrared probe of being arranged on the angle iron are arranged in the position needing to be monitored, the temperature of kettle body steel shell surface and the temperature of tube plate mouth and other positions needing to be monitored are monitored all the time without stopping, and the result is displayed on the computer in control room in real time, the kettle body surface and tube plate mouth temperature can be directly observed through the monitoring interface, and the kettle body steel shell surface temperature and tube plate mouth temperature are interlocked with the temperature measured by the infrared probe and thermal imaging camera after determining the normal range by calculation, if the range is exceeded, the staff in control room is prompted, the technical problem that the lining brick condition in the existing autoclave cannot be monitored online at any time, manual inspection cannot be comprehensive and dead angle and consumes a lot of manpower and time is solved. ACCURACY

[0010] The embodiments of the utility model are further described below with reference to the drawings, and wherein:

[0011] Figure 1 The thermal imaging camera arrangement schematic view is shown;

[0012] Figure 2 The infrared probe arrangement schematic view is shown;

[0013] Figure 3 The monitoring method flow chart of using the system is shown.

[0014] Wherein, 1. autoclave, 2. thermal imaging camera, 3. autoclave platform, 4. angle iron, 5. infrared probe, 6. tube plate mouth, 7. ground. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following further describes the utility model in detail through specific embodiments combined with the drawings.

[0016] As Figures 1-2 As shown in the pressure kettle 1 kettle body rear upper and rear lower each installs a thermal imaging camera 2, aiming at the pressure kettle kettle body, for looking down or looking up the whole kettle body, installs several angle iron 4 on the pressure kettle platform 3 of pressure kettle 1 left and right sides and on the ground 7, each angle iron installs three infrared probes 5, adjusts the angle of infrared probe 5 to make it aim at each tube plate mouth 6, kettle cover, kettle body middle part and other areas that camera can not cover. The image shot by thermal imaging camera 2 and the temperature measured by infrared probe 5 are displayed in the monitoring system of control room computer interface, select several kettle body surface temperature measuring points in the image monitored by thermal imaging camera 2 and display the temperature of these points in real time beside the points, at the same time, according to the theoretical temperature of heat insulation calculation when designing pressure kettle 1 and the temperature of actual production, set a temperature range (the temperature obtained by heat insulation calculation plus 10 DEG C), connect infrared probe 5, thermal imaging camera 2 and temperature controller, interlock the temperature of point selected by infrared probe 5, thermal imaging camera 2 and temperature range, if it exceeds the range, it can be judged that the lining brick in the kettle appears falling off and other problems, which leads to abnormal temperature rise of kettle steel shell surface, needs to open the kettle for inspection and treatment in time, avoids more serious problems.

[0017] The above describes some example embodiments of the utility model, and it can be understood that the above-mentioned embodiments are only used to explain the utility model, and do not constitute the limitation to the protection scope of the utility model. The features in these embodiments can be recombined in a suitable way, and the schemes obtained by this way are still within the protection scope required by the utility model. Based on the above-mentioned embodiments, all other embodiments obtained by the person skilled in the art without making creative labor, namely all modifications, equivalent replacement and improvement etc. made within the spirit and principles of the application, are within the protection scope required by the utility model.

Claims

1. A pressurized vessel lining brick condition detection system characterized by, It comprises: A pressure kettle, a pressure kettle platform, a thermal imaging camera, an angle iron, an infrared probe and a monitoring system, the pressure kettle platform is fixed in the middle of the pressure kettle body, the thermal imaging camera is at least two, respectively fixed on the upper and lower inclined of the pressure kettle body, the angle iron is fixed on the pressure kettle platform and / or the ground below the pressure kettle, the angle iron has at least two groups, the two groups of angle iron are symmetrical along the direction of the pressure kettle platform, at least three infrared probes are fixed on each angle iron, the middle of the kettle body of the pressure kettle, the kettle cover of the pressure kettle or the tube plate port of the pressure kettle all have the infrared probe opposite to them, the thermal imaging camera and the infrared probe are electrically connected with the monitoring system.

2. The pressurized vessel lining brick condition detection system of claim 1, wherein, The thermal imaging camera and the infrared probe are connected with the temperature controller.

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