Automatic temperature measuring system and method for opening descending air flow fire hole cover

Abstract

The application discloses a reciprocating straight-line opening and descending air flow fire hole cover automatic temperature measuring system and method, and belongs to the field of coke oven automatic temperature measurement. The system comprises single and double number variable torque fire hole covers, a straight-line track, a moving control vehicle, a fire hole cover opening device and a temperature measuring device. The single and double number variable torque fire hole covers are installed on the to-be-measured straight-line fire channel fire holes, and the installation directions of the single and double number variable torque fire hole covers on all single number or double number fire holes are consistent. The single and double number variable torque fire hole covers on the double number fire holes are installed after the single and double number variable torque fire hole covers on the single number fire holes are horizontally rotated by 180 degrees. The fire hole cover opening device and the temperature measuring device are installed on the moving control vehicle. The moving control vehicle can open the descending air flow fire hole cover during reciprocating movement. The application realizes the reciprocating and efficient utilization of the moving control vehicle on the basis of long-term and accurate temperature measurement, has small opening resistance and low energy consumption, and provides a new and optimized solution for the field of coke oven automatic temperature measurement.

Description

Technical Field

[0001] This invention belongs to the field of automatic temperature measurement of coke ovens, and in particular relates to an automatic temperature measurement system and method for a reciprocating linear opening and closing of a descending airflow inspection hole cover. Background Technology

[0002] Timely and accurate temperature measurement of the straight flues at the top of the coke oven is fundamental to its daily production. Manual temperature measurement is one of the most common methods. Since the viewing holes on the straight flues are divided into upward and downward airflow viewing holes, arranged at intervals and changing every 20 minutes, to avoid the flames from the upward airflow viewing holes scorching the personnel, manual temperature measurement typically involves first measuring all the downward airflow viewing holes in a specific order. After the 20-minute reversal, the downward and upward airflows are interchanged, and then all the upward airflow viewing holes from the previous reversal are immediately measured (after the reversal, they become downward airflow viewing holes). Manual temperature measurement is labor-intensive, involves poor environmental conditions, and is prone to human error. It is easily affected by external environmental factors such as strong winds and heavy rain, which can interrupt temperature measurement, causing large fluctuations in oven temperature, thus reducing coke quality and affecting the coke oven's lifespan.

[0003] Replacing manual temperature measurement with mobile automatic temperature measurement is a key focus and hot topic in the field of coke oven automatic temperature measurement. Because large coal charging cars or dust removal cars are located on the top of the coke oven, the mobile automatic temperature measurement device is often placed within 0.5m of the ground above the coke oven top to avoid interfering with the operation of these large pieces of equipment and to ensure successful temperature measurement. This is significantly lower than the approximately 1.5m height required for manual temperature measurement. Within this 0.5m height, if all viewing holes are opened indiscriminately for temperature measurement, the intense heat from the flames erupting from the rising airflow viewing holes will undoubtedly severely shorten the lifespan of the automatic temperature measurement device. Therefore, adopting a simple and reliable device to automatically distinguish and only open the descending airflow viewing holes for automatic temperature measurement is of significant engineering importance for ensuring the lifespan of the temperature measurement device and thus achieving long-term temperature measurement.

[0004] The applicant has applied for and obtained a national invention patent for a related temperature measuring device and method (a device and method for automatically and accurately measuring the temperature of coke oven inspection holes that distinguish between odd and even numbers, authorization number CN115265791B). However, coke ovens vary in type, model, and specifications, and the auxiliary equipment installed on the top of the coke oven differs. The distance between large equipment and the top of the oven varies in the width direction, and the length of the steel tracks laid in the length direction for the movement of large equipment also varies. Some steel tracks end near the side furnace, while others occupy the entire length of the oven top. For the former, there is no problem using the applicant's authorized patent to lay a circular track for automatic temperature measurement. However, for the latter, laying the circular track along the width direction of the coke oven beyond the end of the side furnace steel track presents certain difficulties. In fact, even using the applicant's authorized patent, which operates only on the machine-side and coke-side straight sections of the circular track, it is possible to automatically measure the temperature by opening only the inspection port cover for the descending airflow. However, completing a single temperature measurement of all inspection ports on either the machine-side or coke-side requires two empty returns of the mobile control vehicle, resulting in unnecessary waste. This poses a challenge to the long-term operation of the mobile control vehicle, especially during the high-temperature summer season. Therefore, it is necessary to optimize and innovate the mobile automatic temperature measurement system and method specifically for temperature measurement only on the straight sections of the track. This would improve efficiency, reduce ineffective operating time, further reduce opening resistance, lower energy consumption, extend service life, and enable better automatic temperature measurement under various complex coke oven roof conditions. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide an automatic temperature measurement system and method for reciprocating straight-line opening of the descending airflow inspection hole cover. This system can meet the requirements of the limited temperature measurement space environment at the top of the coke oven, and can achieve automatic temperature measurement by opening only the descending airflow inspection hole cover during the reciprocating operation of the mobile automatic temperature measurement device. This avoids the mobile control vehicle running empty, improves efficiency, and further reduces the opening resistance during the opening process, reduces ineffective work, lowers energy consumption, and at the same time avoids the infrared thermometer being exposed to the rising flame, thus extending its service life.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] An automatic temperature measurement system for reciprocating straight-line opening and closing of the fire observation hole cover for descending airflow includes an odd-even variable torque fire observation hole cover, a straight section track, a mobile control vehicle, a fire observation hole opening device, and a temperature measurement device.

[0008] The single and double torque variable torque viewing hole covers are installed on the viewing holes on the same side of the straight fire channel to be tested in the same coke oven, and the single and double torque variable torque viewing hole covers on all single or double viewing holes are installed in the same direction. The single and double torque variable torque viewing hole covers on the double viewing holes are installed after rotating the single and double torque variable torque viewing hole covers on the single viewing holes horizontally by 180°.

[0009] A straight section of track is installed above the observation hole on the straight fire channel of the coke oven to be tested.

[0010] A mobile control vehicle is installed on the straight section of track;

[0011] The mobile control vehicle is equipped with the fire-viewing hole opening device and the temperature measuring device. Two temperature measuring devices are provided, which are respectively installed on the front and rear sides of the fire-viewing hole opening device.

[0012] The pusher installed on the fire hole opening device can move horizontally to open the odd or even number variable torque fire hole cover on the fire hole.

[0013] When the mobile control vehicle reciprocates on the straight section of the track, it sequentially opens the odd-even variable torque fire hole covers on all odd or even fire holes, and then opens the odd-even variable torque fire hole covers on the remaining even or odd fire holes. During the opening process, the odd-even variable torque fire hole covers are all downward airflow fire hole covers.

[0014] As an optimization, the straight track segment includes a machine-side straight track segment and a coke-side straight track segment;

[0015] Above the observation holes on the straight fire channels on both sides of the coke oven, straight sections of tracks for the organic side and coke side are respectively installed.

[0016] Mobile control vehicles are installed on both the machine-side straight track and the coke-side straight track.

[0017] As an optimization, the odd-even variable torque inspection hole covers on the odd-numbered inspection holes on one side of the coke oven are installed in the same orientation as the odd-even variable torque inspection hole covers on the even-numbered inspection holes on the other side.

[0018] The odd and even number variable torque viewing hole covers installed on the viewing holes of the straight-line fire passages to be tested on the machine side and coke side of the same coke oven are of the same type, and all odd numbers on the machine side and all even numbers on the coke side are installed in the same orientation, which facilitates the mobile control vehicle on the machine side and coke side tracks to control their respective viewing hole opening devices to perform the same action, so as to simultaneously measure the temperature on the machine side and coke side of the same coke oven.

[0019] As an optimization, the installation orientation of the odd and even number variable torque inspection hole covers on the same side of the coke ovens on both sides of the coal tower area is exactly the same.

[0020] As an optimization, the fire viewing hole opening device includes an electric actuator, which is mounted on a mobile control vehicle;

[0021] The electric actuator is used to control the horizontal movement of the push head.

[0022] As an optimization, N parallel pushers, N≥2, are installed on the same vertical plane at the end of the flaming hole opening device. These N pushers, in a top-to-bottom order, contact the push rod on the odd / even number variable torque flaming hole cover installed on the flaming hole to open the cover. This achieves seamless, continuous opening, increases the torque, and significantly reduces opening resistance.

[0023] As an optimization, three parallel push heads are installed on the same vertical plane at the end of the fire hole opening device. The uppermost push head is flush with or slightly lower than the top surface of the push rod on the odd / even variable torque fire hole cover. The vertical distance between the middle push head and the uppermost push head is less than the vertical distance between the middle push head and the lowermost push head. The position of the lowermost push head is set so that it will not interfere with the opening process and can ensure that the maximum opening angle does not exceed 85°.

[0024] As an optimization, fire viewing hole opening devices and temperature measuring devices are symmetrically installed on the front and rear walls of the mobile control vehicle;

[0025] The electric actuator is installed on both the front and rear walls of the mobile control vehicle. The electric actuator is equipped with a push head via an arc-shaped connecting rod. The arc-shaped connecting rods on the front and rear walls of the mobile control vehicle are symmetrically arranged along the connecting line of the midpoints of the N push heads, and their openings are opposite to each other.

[0026] The midpoints of all N pushers are located on the same vertical line.

[0027] As an optimization, when the mobile control vehicle reciprocates, the pusher on the rear wall of the mobile control vehicle is aligned with the push rod on the fire vent cover of the descending airflow, according to the direction of travel of the mobile control vehicle, and the pusher on the front wall of the mobile control vehicle is positioned at the center of the straight section of the track.

[0028] An automatic temperature measurement method for the reciprocating straight-moving downward airflow inspection port cover includes the following steps:

[0029] S1. After the coke oven changes direction, a temperature measurement command is issued. When the inspection hole cover that can be opened in the forward direction of the mobile control vehicle is an upward airflow, the mobile control vehicle stands by and waits for the coke oven in front to change direction again.

[0030] S2. When the fire-viewing hole cover that can be opened in the forward direction of the mobile control vehicle is a descending airflow, the mobile control vehicles on the machine side and the coke side simultaneously control the electric push rods to extend or retract according to the temperature measurement command, so that the electric push rods on their respective front and rear walls extend or retract at the same time, so that the push head at the end of the fire-viewing hole opening device on the rear wall of the mobile control vehicle is aligned with the pushed rod on the fire-viewing hole cover of the descending airflow. At this time, the push head at the end of the fire-viewing hole opening device on the front wall of the mobile control vehicle is located in the center of the straight section of the track, and does not touch any pushed rod when the mobile control vehicle moves forward.

[0031] S3. After 5 minutes of reversal, the mobile control vehicle starts from the starting point of the coal tower area and moves forward. The fire viewing hole opening device on the rear wall of the mobile control vehicle opens all the fire viewing hole covers of the descending airflow in sequence and measures the temperature before stopping at the end of the straight section of the track and waiting for the coke oven to reverse again.

[0032] S4. After the coke oven reverses direction again, the mobile control vehicles on the machine side and coke side simultaneously control the electric push rods on their respective front and rear walls to move in opposite directions according to the temperature measurement command. This causes the push head at the end of the inspection hole opening device on the front wall to align with the original rising airflow inspection hole cover. Here, the front wall is now the rear wall, and the original rising airflow is now the descending airflow. This causes the push head at the end of the inspection hole opening device on the rear wall to be located in the center of the straight section of the track. As the mobile control vehicle moves forward, it does not touch any of the pushed rods. Here, the rear wall is now the front wall.

[0033] S5. After 5 minutes of reversal, the mobile control vehicle departs from the end of the straight section of the track and returns to the coal tower area. At this time, the opening device on the rear wall of the mobile control vehicle opens all the downdraft fire observation hole covers in sequence and measures the temperature before returning to the coal tower area and stopping to wait for orders.

[0034] S6. After the coke oven completes one temperature measurement, the central control room computer adjusts the amount of heating gas in the coke oven according to the optimized summary temperature measurement data.

[0035] S7. After the other coke oven is switched, measure the temperature of the other coke oven according to the steps of S1-S5.

[0036] S8. After another coke oven completes a temperature measurement, the central control room computer adjusts the amount of heating gas for the other coke oven based on the selected summary temperature measurement data.

[0037] Compared with the prior art, the beneficial effects of the present invention are:

[0038] (1) This invention utilizes the staggered installation positions of the push rods on the odd / even number variable torque inspection hole covers and their horizontal rotation of 180° on the straight inspection hole to be tested on the top of the coke oven. This, in close coordination with the inspection hole opening device located on the mobile control vehicle, enables the sequential opening of all odd-numbered inspection hole covers or all even-numbered inspection hole covers. This ensures that the inspection hole covers can be opened during the reciprocating straight movement of the mobile control vehicle, and only the inspection hole covers for descending airflow are opened. Under the complex process characteristics of coke ovens, this avoids ineffective empty runs of the mobile control vehicle and improves efficiency.

[0039] (2) The present invention utilizes multiple pushers in the fire-viewing hole opening device to touch the push rod one by one in a top-down order to rotate and open the cover, thereby increasing the opening torque, reducing the opening resistance, and reducing energy consumption. The seamless connection of multiple pushers realizes a continuous automatic touch opening process.

[0040] (3) The present invention takes into account the problems of large opening resistance, large impact force and large power consumption of robot during the opening process. By symmetrically installing fire hole opening devices on the front and rear walls of the mobile control vehicle, the invention avoids excessive collision and wear of a single fire hole opening device, which cannot support long-term reciprocating straight temperature measurement. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the automatic temperature measurement system of the reciprocating straight-moving downward airflow fire viewing hole cover of the present invention.

[0042] Figure 2 This is a schematic diagram of the fire-viewing hole opening device of the present invention, showing continuous opening with low resistance.

[0043] Figure 3 This is a schematic diagram showing four installation orientations for the two types of fire-viewing hole covers of the present invention.

[0044] Figure 4 This is a schematic diagram showing four installation orientations of the inspection hole cover of the present invention on the inspection hole of the coke oven.

[0045] Figure 5 This is a schematic diagram showing an optimized installation orientation of the inspection hole cover of the present invention on the inspection hole of the coke oven.

[0046] Figure 6 This is the basis of the present invention. Figure 5 The diagram shows the location of the fire vent opening device when the device is installed facing the direction of the fire vent.

[0047] Figure 7 This is a schematic diagram showing another optimized installation orientation of the inspection hole cover of the present invention on the inspection hole of the coke oven.

[0048] Figure 8 This is the basis of the present invention. Figure 7 The diagram shows the location of the fire vent opening device when the device is installed facing the direction of the fire vent.

[0049] In the attached diagram: 1. Straight track section; 2. Odd / even number variable torque inspection port cover; 2-1. Push rod; 3. Moving control vehicle; 4-1. Front wall temperature measuring device; 4-2. Rear wall temperature measuring device; 5-1. Front wall inspection port opening device; 5-1-1. Front wall lower push head; 5-1-2. Front wall middle push head; 5-1-3. Front wall upper push head; 5-2. Rear wall inspection port opening device; 5-2-1. Rear wall lower push head; 5-2-2. Rear wall middle push head; 5-2-3. Rear wall upper push head. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Example 1:

[0052] like Figure 1 , Figure 2 As shown, the automatic temperature measurement system for reciprocating straight-line opening and closing of the downdraft inspection port cover includes a straight track 1, an odd / even variable torque inspection port cover 2, a mobile control vehicle 3, a temperature measuring device, and an inspection port cover opening device. Figure 1 The structures of two adjacent odd-even variable torque flare cover 2 are exactly the same, but one of them is installed by rotating 180° horizontally. That is, the odd-even variable torque flare cover 2 is installed in the same direction on all odd-numbered flare covers, and the odd-even variable torque flare cover 2 is installed in the opposite direction to the odd-numbered flare covers on all even-numbered flare covers.

[0053] In this embodiment, fire-viewing hole opening devices and temperature measuring devices are symmetrically installed on the front and rear walls of the mobile control vehicle 3.

[0054] The rear wall fire hole opening device 5-2 has three parallel pushers 5-2-3, 5-2-2, and 5-2-1 installed on the same vertical plane. When opening the cover, the three pushers contact the push rod 2-1 on the odd-even variable torque fire hole cover 2 one by one from top to bottom, realizing a seamless and continuous opening process, which helps to increase the torque and reduce the opening resistance. The front wall of the mobile control vehicle 3 is equipped with a front wall temperature measuring device 4-1 and a front wall fire hole opening device 5-1, which are exactly the same as the rear wall temperature measuring device 4-2 and the rear wall fire hole opening device 5-2 symmetrically installed on the rear wall. The front wall fire hole opening device 5-1 has three parallel pushers 5-1-3, 5-1-2, and 5-1-1 installed on the same vertical plane.

[0055] like Figure 2 As shown, when the mobile control vehicle 3 moves forward, the rear wall push head 5-2-3 in the rear wall fire hole opening device 5-2 first contacts the pushed rod 2-1 to open the cover. At this time, because the opening torque is the largest, the opening resistance is the smallest and the energy consumption is the smallest. As the opening proceeds, when the rear wall push head 5-2-3 disengages from the pushed rod 2-1, the rear wall middle push head 5-2-2 continues to contact the pushed rod 2-1 to continue opening the cover, until the rear wall middle push head 5-2-2 contacts the pushed rod 2-1. Push rod 2-1 disengages, and at this time, the odd / even number variable torque fire vent cover 2 has been opened to a certain angle. Its center of gravity shifts significantly, reducing the resistance to opening the cover. Under these circumstances, when the rear wall push head 5-2-1 continues to contact the push rod 2-1 to continue opening the cover, the resistance to opening the cover that needs to be overcome is small. During the entire opening process, the three push heads contact the push rod 2-1 in sequence from top to bottom, achieving seamless opening while reducing the opening resistance and lowering energy consumption.

[0056] The number of pushers is not limited to three. The foregoing description is merely a preferred embodiment chosen to better illustrate the invention's reduction of opening resistance, thereby reducing the impact during opening and lowering energy consumption.

[0057] N (N≥2) parallel push heads can be set in the same vertical plane. The principle of arranging the N push heads is that when they come into contact with the pushed rod 2-1, the push heads will contact the pushed rod 2-1 one by one from top to bottom to open the cover. When N=2, in order to maximize the opening time of the upper push head and thus reduce the opening resistance of the lower push head, the position where the upper push head first contacts the pushed rod 2-1 is located at the top of the pushed rod 2-1. When N = 3, 4, 5, 6, 7..., the upper push head is flush with or slightly lower than the top surface of the pushed rod 2-1. This setting minimizes the resistance to opening the cover. As the cover is opened, although the upper push head quickly disengages from the pushed rod 2-1, the first, second, third, etc. push heads below it will continue to contact the pushed rod 2-1 one by one to continue opening the cover until the cover is opened to a certain angle. Finally, the lower push head contacts the pushed rod 2-1 to continue opening the cover. When the lower push head disengages from the pushed rod 2-1, the maximum angle at which the odd / even number variable torque fire vent cover 2 is opened does not exceed 85°, which facilitates the automatic closing of the odd / even number variable torque fire vent cover 2 under the action of gravity.

[0058] like Figure 3 The diagram shows four installation orientations of the two types of variable torque inspection hole covers 2 of the present invention on the inspection hole to be tested in the coke oven. Among them, (A) and (D) are the same type of inspection hole cover, but the installation orientations are opposite, and the two are 180° apart. (B) and (C) are the same type of inspection hole cover, but the installation orientations are opposite, and the two are 180° apart.

[0059] like Figure 4The diagram shows four specific installation orientations of the inspection hole cover of the present invention on the inspection hole of the straight-line flue to be tested in the coke oven. Among them, the cover is installed on the first inspection hole 1 to be tested on the machine side of coke oven #1. Figure 3 (B) In the diagram, the first inspection hole 1 on the coke side of coke oven #1 is installed. Figure 3 (C) is installed on the first test observation hole 67 on the side of coke oven #2. Figure 3 (A) The first inspection hole 67 on the coke side of coke oven #2 is installed. Figure 3 In (D), it is important to point out that... Figure 3 The four installation orientations of the inspection hole covers can be arbitrarily installed on the first inspection hole on the machine side and coke side of coke oven #1, and on the first inspection hole on the machine side and coke side of coke oven #2. Therefore, after determining the inspection hole cover to be installed on the first inspection hole to be tested, the inspection hole covers installed on all odd-numbered inspection holes on the same side of the same coke oven are the same as the first hole, and the inspection hole covers installed on all even-numbered inspection holes on the same side have the opposite installation orientation to the odd-numbered ones; that is, the inspection hole covers on the even-numbered ones are installed after being rotated horizontally 180°. Arranging the installation orientation of the inspection hole covers according to the above principles of this invention ensures that the inspection hole covers can be opened whether the mobile control vehicle 3 is moving forward or returning, and only the inspection hole covers for descending airflow are opened.

[0060] Example 2:

[0061] Based on Example 1, this example proposes an optimized installation of the odd / even variable torque fire-viewing hole cover 2.

[0062] In the actual temperature measurement process of coke ovens, the temperature of all downflow inspection holes on both the machine side and coke side of each coke oven must be measured within one reversing cycle. After another reversal, the temperature of all the original upflow inspection holes (now downflow) on both the machine side and coke side must be measured. To simplify and optimize the operation, this requires simultaneous temperature measurement on both the machine side and coke side of the same coke oven, necessitating that the mobile control vehicles 3 on both sides advance simultaneously and perform the same control actions. Therefore, the installation orientation of the inspection hole covers on both the machine side and coke side must be considered holistically.

[0063] like Figure 5 The diagram shows an optimized installation orientation for the inspection port cover, with the No. 1 and No. 2 coke ovens on both sides of the coal tower area having the same installation orientation. Under this optimized installation orientation, when the odd-numbered airflow on the machine side of No. 1 coke oven is downward, the even-numbered airflow on the coke side of No. 1 coke oven is also downward, with the direction of travel of the mobile control vehicle 3 as the reference. Figure 6 The fire hole opening device moves horizontally left and right to reach positions a, o, and b.

[0064] At this time, the mobile control vehicle 3, as Figure 6 As shown on the right side, it needs to be as follows Figure 6The two mobile control vehicles 3 shown on the right simultaneously control the fire-viewing hole opening devices on their respective front and rear walls to retract and reach their respective destinations. Figure 6 Positions o and a are configured such that the pusher at the end of the spectral opening device on the rear wall is precisely aligned with the push rod 2-1 (position a) on the spectral opening cover of the downdraft airflow that can be opened, and the pusher at the end of the spectral opening device on the front wall is precisely in the center (position o). When the mobile control vehicle 3 moves from the coal tower area to the No. 1 coke oven, the spectral opening device on the front wall does not touch any push rod 2-1, and the pusher at the end of the spectral opening cover on the rear wall sequentially touches the push rod 2-1 on the spectral opening cover of the downdraft airflow. This achieves the sequential opening of all spectral opening covers of the downdraft airflow and automatic temperature measurement. After reaching the end of the track, the machine stops and waits for further instructions.

[0065] After the No. 1 coke oven reverses direction, the inspection holes for the rising and falling airflows are interchanged. Mobile control vehicle 3 departs from the end of the No. 1 coke oven track and returns to the coal tower area. Again, using the direction of travel of mobile control vehicle 3 as a reference, the front and rear walls are interchanged. Both mobile control vehicles 3 simultaneously control the opening devices of the inspection holes on their respective front and rear walls to simultaneously extend and reach their respective destinations. Figure 6 The positions 'o' and 'b' in the diagram ensure that only the original rising airflow inspection holes are sequentially opened when returning to the coal tower area (at this time, the airflow is descending). The same principle applies to temperature measurement in coke oven #2.

[0066] Example 3:

[0067] Based on Example 1, this example proposes another optimized installation of the odd / even number variable torque fire-viewing hole cover 2.

[0068] like Figure 7 The image shows another optimized installation orientation for the fire vent cover, combined with... Figure 8 The explanation is as follows: When the mobile control vehicle 3 moves to the left and the fire vent cover that can be opened is in a downdraft, the mobile control vehicle 3 controls all electric actuators to extend, so that the actuator on the rear wall reaches position b and the actuator on the front wall reaches position o. Conversely, when the mobile control vehicle 3 moves to the right and the fire vent cover that can be opened is in a downdraft, the mobile control vehicle 3 controls all electric actuators to retract, so that the actuator on the rear wall reaches position a and the actuator on the front wall reaches position o. This allows the fire vent cover to be opened in a downdraft even when moving straight back and forth, without the need for empty driving.

[0069] Figure 5 , Figure 7 The installation of the inspection port covers on the intermediate machine side and the coke side can be interchanged. After the interchange, it will not affect the realization of only opening the inspection port cover for the descending airflow when the mobile control vehicle 3 is moving back and forth in a straight line.

[0070] Example 4: Figure 5 , Figure 6As shown, the automatic temperature measurement method for the reciprocating straight-moving downward airflow inspection hole cover is further described below, combining the function of the automatic temperature measurement system for the reciprocating straight-moving downward airflow inspection hole cover in Embodiment 1 and the overall system layout on the top of the coke oven. The method includes the following steps:

[0071] (1) The coal tower area is the starting and ending point of automatic temperature measurement. After the No. 1 coke oven changes direction, the operator issues a temperature measurement command. When the fire viewing cover that can be opened in the left direction of the mobile control vehicle 3 (odd number on the machine side and even number on the coke side) is in the rising airflow, the mobile control vehicle 3 stands by and waits for the No. 1 coke oven to change direction again.

[0072] (2) After the No. 1 coke oven reverses direction again, the inspection hole covers that can be opened in the leftward direction of the mobile control car 3 (odd numbers on the machine side, even numbers on the coke side) are in a downward airflow direction. Based on the forward direction of the mobile control car 3, the mobile control car 3 controls the electric push rods on the front and rear walls to retract simultaneously, so that the push head of the cover opening device on the rear wall is in position. Figure 6 Position a in the middle is precisely aligned with the push rod 2-1 on the downdraft fire vent cover, so that the push head of the cover opening device on the front wall is positioned... Figure 6 The central position of o in the middle;

[0073] (3) After 5 minutes of reversal and when the airflow is stable, the mobile control vehicle 3 on the coke oven side starts from the starting point of the coal tower area and moves to the left along the track. The fire hole opening device on the rear wall of the mobile control vehicle 3 on the machine side opens the odd-numbered fire hole covers 65, 63, 61, 59....7, 5, 3, 1 on the machine side in sequence, and the fire hole opening device on the rear wall of the mobile control vehicle 3 on the coke oven side opens the even-numbered fire hole covers 66, 64, 60, 58....8, 6, 4, 2 on the machine side in sequence. When it reaches the end of the track, it stops and waits for the No. 1 coke oven to continue reversing.

[0074] (4) After the No. 1 coke oven continues to change direction, both the even-numbered airflow on the machine side and the odd-numbered airflow on the coke side become downward airflow. Taking the forward direction of the mobile control vehicle 3 as a reference, the mobile control vehicle 3 controls the electric push rods on the front wall and the rear wall to push out simultaneously, so that the push head of the opening device on the rear wall is positioned at the... Figure 6 Position b in the diagram is precisely aligned with the push rod 2-1 on the cover of the original rising airflow inspection hole (now a descending airflow inspection hole), causing the push head of the inspection hole opening device on the front wall to be positioned... Figure 6 The central position of o in the middle;

[0075] (5) After 5 minutes of reversal and when the airflow stabilizes, the mobile control vehicle 3 on the coke oven side starts from the end of the track and moves to the right along the track to return to the coal tower area. The fire hole opening device on the rear wall of the mobile control vehicle 3 on the machine side opens the even-numbered fire hole covers 2, 4, 6, 8...60, 62, 64, 66 on the machine side in sequence, and the fire hole opening device on the rear wall of the mobile control vehicle 3 on the coke oven side opens the odd-numbered fire hole covers 1, 3, 5, 7...59, 61, 63, 65 on the coke oven side in sequence, and returns to the initial starting position in the coal tower area to complete one temperature measurement of No. 1 coke oven.

[0076] (6) After the No. 1 coke oven completes one temperature measurement, the computer in the central control room adjusts the amount of heating gas for the No. 1 coke oven according to the selected summary temperature measurement data.

[0077] (7) After the No. 2 coke oven is reversed, the temperature of the No. 2 coke oven is measured according to the steps (1)-(5). It should be noted that, taking the direction of the moving control vehicle 3 as the reference, when the moving control vehicle 3 moves to the right, the push head of the fire-viewing hole opening device on the rear wall is positioned at the reference. Figure 6 Position b in the diagram is precisely aligned with the push rod 2-1 on the downdraft fire vent cover, causing the pusher of the fire vent opening device on the front wall to be positioned... Figure 6 The center position is O; taking the direction of movement of the mobile control vehicle 3 as a reference, when the mobile control vehicle 3 returns to the coal tower area to the left, the push head of the fire viewing hole opening device on the rear wall is positioned at... Figure 6 Position a in the middle is precisely aligned with the push rod 2-1 on the downdraft fire vent cover, so that the push head of the fire vent opening device on the front wall is positioned... Figure 6 The central position of o in the middle;

[0078] (8) After the No. 2 coke oven completes one temperature measurement, the computer in the central control room adjusts the amount of heating gas for the No. 2 coke oven according to the selected summary temperature measurement data.

[0079] The aforementioned steps (1)-(8) are the method of opening the fire-viewing hole cover of the downward airflow and automatically measuring the temperature in the reciprocating straight-line low-resistance manner of the present invention. It should be noted that the system and method of the present invention can realize the separate temperature measurement of two coke ovens on both sides of the coal tower area. The automatic temperature measurement of one coke oven requires two reversals of 40 minutes. The two coke ovens can be measured sequentially as needed, or a certain coke oven can be measured continuously, with key control.

[0080] Example 5:

[0081] The difference from Embodiment 1 is that the specific structure of the fire-viewing hole opening device in this embodiment is as follows:

[0082] Electric actuators are symmetrically installed on the front and rear walls of the mobile control vehicle 3. The electric actuators are equipped with push heads through arc-shaped connecting rods. The arc-shaped connecting rods on the front and rear walls of the mobile control vehicle are symmetrically arranged along the connecting line of the midpoints of N push heads, and their openings are opposite to each other.

[0083] The midpoints of all N pushers are located on the same vertical line.

[0084] The above description is only for the purpose of helping to understand the method and core essence of the present invention, but the scope of protection of the present invention is not limited thereto. For those skilled in the art, any equivalent substitutions or modifications made to the technical solution and inventive concept disclosed in the present invention within the scope of the technology disclosed in the present invention should be covered within the scope of protection of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An automatic temperature measuring system for reciprocating straight-line opening and closing of a fire observation hole cover for descending airflow, comprising an odd / even numbered variable torque fire observation hole cover, a straight section track, a moving control vehicle, a fire observation hole cover opening device, and a temperature measuring device, characterized in that, The single and double torque variable torque viewing hole covers are installed on the viewing holes on the same side of the straight fire channel to be tested in the same coke oven, and the single and double torque variable torque viewing hole covers on all single or double viewing holes are installed in the same direction. The single and double torque variable torque viewing hole covers on the double viewing holes are installed after rotating the single and double torque variable torque viewing hole covers on the single viewing holes horizontally by 180°. A straight section of track is installed above the observation hole on the straight fire channel of the coke oven to be tested. A mobile control vehicle is installed on the straight section of track; The mobile control vehicle is equipped with the fire-viewing hole opening device and the temperature measuring device. Two temperature measuring devices are provided, which are respectively installed on the front and rear sides of the fire-viewing hole opening device. The pusher installed on the fire hole opening device can move horizontally to open the odd or even number variable torque fire hole cover on the fire hole. When the mobile control vehicle reciprocates on the straight section of the track, it sequentially opens the odd-even variable torque fire hole covers on all odd or even fire holes, and then opens the odd-even variable torque fire hole covers on the remaining even or odd fire holes. During the opening process, the odd-even variable torque fire hole covers are all downward airflow fire hole covers.

2. The automatic temperature measurement system for the reciprocating linear opening and descending airflow inspection port cover according to claim 1, characterized in that, The straight track section includes the machine-side straight track section and the coke-side straight track section. Above the observation holes on the straight fire channels on both sides of the coke oven, straight sections of tracks for the organic side and coke side are respectively installed. Mobile control vehicles are installed on both the machine-side straight track and the coke-side straight track.

3. The automatic temperature measurement system for the reciprocating linear opening and descending airflow inspection port cover according to claim 2, characterized in that, The odd-even variable torque inspection hole covers on the odd-numbered inspection holes on one side of the coke oven are installed in the same orientation as the odd-even variable torque inspection hole covers on the even-numbered inspection holes on the other side.

4. The automatic temperature measurement system for the reciprocating linear opening and descending airflow inspection port cover according to claim 3, characterized in that, The odd and even number variable torque inspection hole covers on the same side of the coke ovens on both sides of the coal tower area are installed in the same orientation.

5. The automatic temperature measurement system for the reciprocating linear opening and descending airflow inspection port cover according to claim 4, characterized in that, The fire viewing hole opening device includes an electric push rod, which is mounted on a mobile control vehicle; The electric actuator is used to control the horizontal movement of the push head.

6. The automatic temperature measurement system for the reciprocating linear opening and descending airflow inspection port cover according to claim 5, characterized in that, The fire-viewing hole opening device has N parallel push heads installed on the same vertical plane at its end, where N ≥ 2. The N push heads, in a top-to-bottom order, contact the push rod on the odd / even number variable torque fire-viewing hole cover installed on the fire-viewing hole to open the cover.

7. The automatic temperature measurement system for the reciprocating linear opening and descending airflow inspection port cover according to claim 6, characterized in that, Three parallel push heads are installed on the same vertical plane at the end of the fire hole opening device. The uppermost push head is flush with or lower than the top surface of the push rod on the odd / even variable torque fire hole cover. The vertical distance between the middle push head and the uppermost push head is less than the vertical distance between the middle push head and the lowermost push head. The position of the lowermost push head is set so that it will not interfere with the opening process and can ensure that the maximum opening angle does not exceed 85°.

8. The automatic temperature measurement system for the reciprocating linear opening and descending airflow inspection port cover according to claim 7, characterized in that, The fire viewing hole opening device and temperature measuring device are symmetrically installed on the front and rear walls of the mobile control vehicle. The electric actuator is installed on both the front and rear walls of the mobile control vehicle. The electric actuator is equipped with a push head via an arc-shaped connecting rod. The arc-shaped connecting rods on the front and rear walls of the mobile control vehicle are symmetrically arranged along the connecting line of the midpoints of the N push heads, and their openings are opposite to each other. The midpoints of all N pushers are located on the same vertical line.

9. The automatic temperature measuring system for the reciprocating linear opening and descending airflow inspection port cover according to claim 8, characterized in that, When the mobile control vehicle reciprocates, according to the direction of travel of the mobile control vehicle, the pusher on the rear wall of the mobile control vehicle is aligned with the push rod on the fire viewing hole cover of the descending airflow, and the pusher on the front wall of the mobile control vehicle is positioned at the center of the straight section of the track.

10. An automatic temperature measurement method for a reciprocating linear opening and descending airflow inspection port cover using the automatic temperature measurement system described in any one of claims 5-9, characterized in that, Includes the following steps: S1. After the coke oven changes direction, a temperature measurement command is issued. When the inspection hole cover that can be opened in the forward direction of the mobile control vehicle is an upward airflow, the mobile control vehicle stands by and waits for the coke oven in front to change direction again. S2. When the fire-viewing hole cover that can be opened in the forward direction of the mobile control vehicle is a descending airflow, the mobile control vehicles on the machine side and the coke side simultaneously control the electric push rods to extend or retract according to the temperature measurement command, so that the electric push rods on their respective front and rear walls extend or retract at the same time, so that the push head at the end of the fire-viewing hole opening device on the rear wall of the mobile control vehicle is aligned with the pushed rod on the fire-viewing hole cover of the descending airflow. At this time, the push head at the end of the fire-viewing hole opening device on the front wall of the mobile control vehicle is located in the center of the straight section of the track, and does not touch any pushed rod when the mobile control vehicle moves forward. S3. After 5 minutes of reversal, the mobile control vehicle starts from the starting point of the coal tower area and moves forward. The fire viewing hole opening device on the rear wall of the mobile control vehicle opens all the fire viewing hole covers of the descending airflow in sequence and measures the temperature before stopping at the end of the straight section of the track and waiting for the coke oven to reverse again. S4. After the coke oven reverses direction again, the mobile control vehicles on the machine side and coke side simultaneously control the electric push rods on their respective front and rear walls to move in opposite directions according to the temperature measurement command. This causes the push head at the end of the inspection hole opening device on the front wall to align with the original rising airflow inspection hole cover. Here, the front wall is now the rear wall, and the original rising airflow is now the descending airflow. This causes the push head at the end of the inspection hole opening device on the rear wall to be located in the center of the straight section of the track. As the mobile control vehicle moves forward, it does not touch any of the pushed rods. Here, the rear wall is now the front wall. S5. After 5 minutes of reversal, the mobile control vehicle departs from the end of the straight section of the track and returns to the coal tower area. At this time, the opening device on the rear wall of the mobile control vehicle opens all the downdraft fire observation hole covers in sequence and measures the temperature before returning to the coal tower area and stopping to wait for orders. S6. After the coke oven completes one temperature measurement, the central control room computer adjusts the amount of heating gas in the coke oven according to the optimized summary temperature measurement data. S7. After the other coke oven is switched, measure the temperature of the other coke oven according to the steps of S1-S5. S8. After another coke oven completes a temperature measurement, the central control room computer adjusts the amount of heating gas for the other coke oven based on the selected summary temperature measurement data.

Images