Mobile temperature measuring device for passivating and drying furnace outlet strip steel

Abstract

The utility model discloses a movable temperature measuring device for passivating and drying furnace outlet strip steel, which comprises a crank sliding mechanism, an infrared thermometer is arranged on the crank sliding mechanism, a motor driving mechanism is arranged on the outer side of the crank sliding mechanism, and the crank sliding mechanism is connected with the motor driving mechanism. The cooling protection mechanism is arranged on the infrared temperature measuring instrument, and the infrared temperature measuring instrument and the motor driving mechanism are both connected with the temperature measuring control display mechanism. Real-time on-line continuous accurate measurement of the surface temperature of the passivation drying furnace outlet strip steel is achieved, real-time scanning within the width range of the strip steel is achieved through the characteristics of circular motion and linear reciprocating motion of a crank sliding mechanism and a motor driving mechanism, and the temperature distribution condition of all points on the surface of the passivation drying furnace outlet strip steel with the temperature to be measured is effectively monitored. And the strip steel passivated finished product quality and the production efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to temperature measurement technical field, concretely relates to a mobile temperature measuring device of passivated drying furnace outlet strip steel. BACKGROUND

[0002] Metal passivation antirust treatment is a kind of surface treatment technology that forms a layer of passivation protective film on the metal surface by chemical method to improve its corrosion resistance, enhance oxidation resistance and improve heat resistance, and the process is particularly important for manufacturing industry, and conventional Hot-Dip galvanized steel sheet, cold-rolled steel sheet and other sheet materials need to be passivated during production.

[0003] Drying is an essential step in the passivation process of steel sheet, which can make the coating better adhere to the surface of steel sheet substrate, and also can volatilize the water remaining around, so that the solid content of the coating is higher. High-temperature drying is carried out to quickly volatilize water, but too high drying temperature will make the passivation film become fragile and fail over time. If the drying temperature is too high, the passivation film is dried too fast and corrodes excessively, which will affect its coating effect and cause problems such as peeling, thus losing the rust-proof effect and causing quality problems, affecting the appearance and use performance of the product. At the same time, too high temperature may increase the cost and shorten the service life of the passivation liquid. Low-temperature drying will make the coating quality worse and affect its corrosion resistance. Therefore, it is necessary to find a suitable drying temperature to ensure the stability of the coating and the quality performance of the strip. Specifically, the passivation drying temperature should be adjusted according to different substrates, coatings and other factors. Precise temperature control under the condition of ensuring complete drying of the coating can better maintain the performance of the coating and the quality of the strip.

[0004] Currently, there is no effective temperature control method for passivation drying furnace outlet strip steel, and basically manual experience control is adopted. A small part of passivation temperature control methods use single-point pyrometer to measure the local temperature of strip steel at the outlet position of passivation drying furnace to guide passivation production. However, the single-point temperature measuring instrument is limited in measuring the temperature area of strip, and often appears the situation that the local temperature is too high or too low, resulting in abnormal quality of finished products. Lack of temperature control guidance will cause many problems such as performance and quality of finished products and energy consumption. Traditional area-type thermal imaging temperature measurement cannot realize effective temperature monitoring to guide production due to the influence of light path interference such as change of strip surface emissivity, dust and drying furnace thermal radiation existing on site. Traditional contact-type thermocouple temperature measurement can only indirectly measure the atmosphere temperature in the drying furnace and cannot monitor the actual surface temperature of strip. Therefore, we propose a mobile temperature measuring device of passivation drying furnace outlet strip steel. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a mobile temperature measuring device of passivation drying furnace outlet strip steel to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: A mobile temperature measuring device of passivation drying furnace outlet strip steel, include,

[0007] Crank sliding mechanism, infrared temperature measuring instrument is arranged on the crank sliding mechanism;

[0008] Motor drive mechanism, the motor drive mechanism is set up in the outside of the crank sliding mechanism, and the crank sliding mechanism and the motor drive mechanism are connected;

[0009] Cooling protection mechanism, the cooling protection mechanism is set up on the infrared temperature measuring instrument;

[0010] Temperature measurement control display mechanism, the infrared temperature measuring instrument and the motor drive mechanism are connected with the temperature measurement control display mechanism.

[0011] Preferably, the crank sliding mechanism includes fixed support frame, guide rail, moving slider, connecting rod and crank;

[0012] The guide rail is arranged on the fixed support frame, the moving slider is slidably arranged on the guide rail, the bottom end of the moving slider is movably connected with one end of the connecting rod through a fixed rod, the other end of the connecting rod is movably connected with one end of the crank, and the other end of the crank is connected with the fixed support frame.

[0013] Preferably, the infrared temperature measuring instrument is installed on the moving slider through a mounting bracket, and the temperature measuring port of the infrared temperature measuring instrument is arranged towards the direction of the strip steel to be measured.

[0014] Preferably, the motor drive mechanism includes a drive motor, a turntable and a fixed shaft.

[0015] The drive motor is arranged on the lower part of the outside of the fixed support frame, the output end of the drive motor is provided with the turntable, the crank and the turntable are connected through the fixed shaft, the fixed shaft is eccentrically arranged on the turntable, and the crank is provided with a guide cavity for the movement of the fixed shaft.

[0016] Preferably, the cooling protection mechanism includes a cooling protection sleeve and an air blowing device.

[0017] The cooling protection sleeve is arranged on the outside of the infrared temperature measuring instrument, and the cooling protection sleeve is provided with a cooling water inlet and outlet for cooling water.

[0018] The air blowing device is arranged on the temperature measuring port of the infrared temperature measuring instrument, and the air blowing device is provided with an air inlet for compressed gas.

[0019] Preferably, the temperature measurement control display mechanism comprises a PLC and a temperature display unit;

[0020] The infrared temperature measuring instrument and the driving motor are connected with the PLC, and the PLC is connected with the temperature display unit.

[0021] Preferably, the infrared temperature measuring instrument is a 2.8-micron short-wavelength infrared temperature measuring instrument, and the temperature measurement temperature of the infrared temperature measuring instrument is 40-425 DEG C.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] The utility model discloses a crank sliding mechanism and motor drive mechanism, when using, cooling water import and export access 0.2-0.3Mpa's cooling circulating water, through the cooling protection cover to infrared temperature measuring instrument cooling, and the air inlet access 0.2-0.3Mpa's compressed gas, through air purging device to infrared temperature measuring instrument's temperature measurement port purging, prevent infrared temperature measuring instrument's temperature measurement lens dirty, reduce maintenance workload, then by PLC control motor drive mechanism and infrared temperature measuring instrument start, drive motor rotation, drive the rotation of carousel, make the fixed shaft on carousel do circular motion, and then drive the crank rotation in the guiding cavity on the crank, and then make connecting rod swing with crank, drive the moving slider reciprocating linear motion on the guide, and then make infrared temperature measuring instrument in the width range of the temperature measuring strip steel scanning mobile type temperature measurement, through PLC receive infrared temperature measuring instrument's temperature measurement signal, and then through temperature display unit temperature display, realize the real-time on-line continuous accurate measurement of passivated drying furnace outlet strip steel surface temperature, and through crank sliding mechanism and motor drive mechanism the characteristics of circular motion and linear reciprocating motion realize the real-time scanning in the width range of strip steel, effectively monitor the temperature distribution of each point on the surface of the temperature measuring strip steel of passivated drying furnace outlet, improve strip steel passivated finished product quality, reduce energy consumption, improve production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is the side view structure schematic drawing of the utility model;

[0025] Fig. 2 It is the main view structure schematic drawing of the utility model.

[0026] In the figure: 1, crank sliding mechanism; 101, fixed support frame; 102, guide rail; 103, moving slider; 104, connecting rod; 105, crank; 2, infrared temperature measuring instrument; 3, motor driving mechanism; 301, driving motor; 302, turntable; 303, fixed shaft; 304, guide cavity; 4, cooling protection mechanism; 401, cooling protection sleeve; 402, air blowing device; 403, cooling water inlet and outlet; 404, air inlet; 5, temperature measuring control display mechanism; 501, PLC; 502, temperature display unit; 6, to-be-measured temperature strip steel. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figs. 1-2 The movable temperature measuring device for the strip steel exported from the passivation drying furnace provided by the utility model comprises,

[0029] The crank sliding mechanism 1 is provided with the infrared temperature measuring instrument 2, and the crank sliding mechanism 1 comprises a fixed support frame 101, a guide rail 102, a moving slider 103, a connecting rod 104 and a crank 105. The guide rail 102 is arranged on the fixed support frame 101, the moving slider 103 is slidingly arranged on the guide rail 102, the bottom end of the moving slider 103 is movably connected with one end of the connecting rod 104 through a fixed rod, the other end of the connecting rod 104 is movably connected with one end of the crank 105, the other end of the crank 105 is connected with the fixed support frame 101, the infrared temperature measuring instrument 2 is installed on the moving slider 103 through an installation support, and the temperature measuring port of the infrared temperature measuring instrument 2 is arranged to face the to-be-measured temperature strip steel 6. The infrared temperature measuring instrument 2 is a 2.8 mu m short-wavelength infrared temperature measuring instrument, and the temperature measuring temperature of the infrared temperature measuring instrument 2 is 40-425 DEG C. The 2.8 mu m short-wavelength infrared temperature measuring instrument is adopted to overcome the influence of the change of the surface emissivity of the passivation site on temperature measurement, and the low-temperature temperature measuring range of 40-425 DEG C is adopted to realize accurate measurement of the low-temperature temperature of about 100 DEG C at the outlet of the passivation curing furnace, thereby improving the temperature measurement accuracy of the strip steel exported from the passivation drying furnace.

[0030] The motor driving mechanism 3 is arranged outside the crank sliding mechanism 1 and is connected with the crank sliding mechanism 1, and the motor driving mechanism 3 comprises a driving motor 301, a rotating disc 302 and a fixed shaft 303; the driving motor 301 is arranged at the lower part outside the fixed support frame 101, the output end of the driving motor 301 is provided with the rotating disc 302, the crank 105 and the rotating disc 302 are connected through the fixed shaft 303, the fixed shaft 303 is arranged eccentrically on the rotating disc 302, and the crank 105 is provided with a guide cavity 304 for the movement of the fixed shaft 303;

[0031] The cooling protection mechanism 4 is arranged on the infrared thermometer 2, and comprises a cooling protection sleeve 401 and an air blowing device 402; the cooling protection sleeve 401 is arranged outside the infrared thermometer 2, the cooling protection sleeve 401 is provided with a cooling water inlet and outlet 403 for cooling water, which can cool the infrared thermometer 2 and prevent the influence of high temperature environment on the infrared thermometer 2, effectively protecting the normal use of the infrared thermometer 2; the air blowing device 402 is arranged at the temperature measuring port of the infrared thermometer 2, and the air blowing device 402 is provided with an air inlet 404 for compressed gas, which can blow the temperature measuring port of the infrared thermometer 2 and avoid the dirt phenomenon of the temperature measuring port of the infrared thermometer 2;

[0032] The temperature measuring control display mechanism 5 is connected with the infrared thermometer 2 and the motor driving mechanism 3, and comprises a PLC 501 and a temperature display unit 502; the infrared thermometer 2 and the driving motor 301 are connected with the PLC 501, the PLC 501 is connected with the temperature display unit 502, the temperature measuring signal of the infrared thermometer 2 is received through the PLC 501, and the temperature is displayed through the temperature display unit 502 (the working principles of the PLC 501 and the temperature display unit 502 are both prior art, and will not be described here).

[0033] The utility model discloses a crank sliding mechanism 1 and motor drive mechanism 3 are equipped with, when using, cooling water inlet and outlet 403 access 0.2-0.3Mpa cooling circulating water, through cooling protection cover 401 to infrared thermometer 2 cooling, inlet 404 access 0.2-0.3Mpa compressed gas, through air purging device 402 to infrared thermometer 2's temperature measuring port is swept, prevent infrared thermometer 2's temperature measuring lens dirty, reduce maintenance workload, then by PLC 501 control motor drive mechanism 3 and infrared thermometer 2 start, drive motor 301 rotation, drive turntable 302 rotation, make fixed shaft 303 on turntable 302 do circular motion, further drive crank 105 rotation in the guide cavity 304 on crank 105, further make connecting rod 104 swing with crank 105, drive moving slider 103 do reciprocating linear motion on guide rail 102, further make infrared thermometer 2 in the width range of the temperature measuring strip steel 6 scanning mobile type temperature measurement, through PLC 501 receive infrared thermometer 2's temperature measurement signal, again through temperature display unit 502 temperature display, realize the real-time on-line continuous accurate measurement of passivation drying furnace outlet strip steel surface temperature, and through crank sliding mechanism 1 and motor drive mechanism 3 the characteristic of circular motion and linear reciprocating motion realizes the real-time scanning in the width range of strip steel, effectively monitor passivation drying furnace outlet temperature distribution of each point on the surface of the temperature measuring strip steel 6, improve strip passivation finished product quality, reduce energy consumption, improve production efficiency.

[0034] In conclusion, the use method of the mobile temperature measuring device for the strip steel at the outlet of the passivation drying furnace provided by the embodiment is as follows: when using, cooling water inlet and outlet 403 access 0.2-0.3Mpa cooling circulating water, through cooling protection cover 401 to infrared thermometer 2 cooling, inlet 404 access 0.2-0.3Mpa compressed gas, through air purging device 402 to infrared thermometer 2's temperature measuring port is swept, prevent infrared thermometer 2's temperature measuring lens dirty, reduce maintenance workload, then by PLC 501 control motor drive mechanism 3 and infrared thermometer 2 start, drive motor 301 rotation, drive turntable 302 rotation, make fixed shaft 303 on turntable 302 do circular motion, further drive crank 105 rotation in the guide cavity 304 on crank 105, further make connecting rod 104 swing with crank 105, drive moving slider 103 do reciprocating linear motion on guide rail 102, further make infrared thermometer 2 in the width range of the temperature measuring strip steel 6 scanning mobile type temperature measurement, through PLC 501 receive infrared thermometer 2's temperature measurement signal, again through temperature display unit 502 temperature display, realize the real-time on-line continuous accurate measurement of passivation drying furnace outlet strip steel surface temperature.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile temperature measuring device for passivating a strip steel in an outlet of a drying furnace, characterized in that Including, The crank sliding mechanism (1) is provided with an infrared thermometer (2); The motor driving mechanism (3) is arranged outside the crank sliding mechanism (1), and the crank sliding mechanism (1) and the motor driving mechanism (3) are connected; The cooling protection mechanism (4) is arranged on the infrared thermometer (2); The temperature measurement control display mechanism (5) is connected with the infrared thermometer (2) and the motor driving mechanism (3).

2. A mobile temperature measuring device for a passivated drying furnace outlet strip steel according to claim 1, characterized in that: The crank sliding mechanism (1) comprises a fixed support frame (101), a guide rail (102), a moving slider (103), a connecting rod (104) and a crank (105); The guide rail (102) is arranged on the fixed support frame (101), the moving slider (103) is slidingly arranged on the guide rail (102), the bottom end of the moving slider (103) is movably connected with one end of the connecting rod (104) through a fixed rod, the other end of the connecting rod (104) is movably connected with one end of the crank (105), and the other end of the crank (105) is connected with the fixed support frame (101).

3. A mobile temperature measuring device for a passivated drying furnace outlet strip steel according to claim 2, characterized in that: The infrared thermometer (2) is installed on the moving slider (103) through a mounting bracket, and a temperature measurement port of the infrared thermometer (2) is arranged to face a to-be-measured temperature strip steel (6).

4. A mobile temperature measuring device for passivated drying furnace outlet strip steel according to claim 2, characterized in that: The motor driving mechanism (3) comprises a driving motor (301), a rotating disc (302) and a fixed shaft (303); The driving motor (301) is arranged at the lower part outside the fixed support frame (101), an output end of the driving motor (301) is provided with the rotating disc (302), the crank (105) and the rotating disc (302) are connected through the fixed shaft (303), the fixed shaft (303) is eccentrically arranged on the rotating disc (302), and the crank (105) is provided with a guide cavity (304) for the movement of the fixed shaft (303).

5. A mobile temperature measuring device for passivated drying furnace outlet strip steel according to claim 1, characterized in that: The cooling protection mechanism (4) comprises a cooling protection sleeve (401) and an air blowing device (402); The cooling protection sleeve (401) is arranged outside the infrared thermometer (2), and the cooling protection sleeve (401) is provided with a cooling water inlet and outlet (403) for cooling water; The air blowing device (402) is arranged at the temperature measurement port of the infrared thermometer (2), and the air blowing device (402) is provided with an air inlet (404) for compressed gas.

6. A mobile temperature measuring device for passivated drying furnace outlet strip steel according to claim 4, characterized in that: The temperature measurement control display mechanism (5) comprises a PLC (501) and a temperature display unit (502); The infrared thermometer (2) and the driving motor (301) are connected with the PLC (501), and the PLC (501) and the temperature display unit (502) are connected.

7. A mobile temperature measuring device for passivated drying furnace outlet strip steel according to claim 1, characterized in that: The infrared thermometer (2) is a 2.8 mu m short wavelength infrared thermometer, and the temperature measurement temperature of the infrared thermometer (2) is 40-425 DEG C.

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