Wind eye cleaning equipment and wind eye cleaning method

Abstract

The present invention belongs to the technical field of copper smelting equipment, and particularly relates to an air eye cleaning device and an air eye cleaning method. A drill rod pokes open a blockage under the action of a linear motion actuator, and then rotates under the action of a rotary drive mechanism. The drill rod needs to stay in the air eye for a certain period of time when rotating. Since the temperature of the drill rod is relatively low, adhesives at the air eye mouth are cooled and solidified when the drill rod stays. In this way, even if the drill rod is withdrawn after completing the rotation action, the outline of the poked hole can be reliably maintained, thereby ensuring the cleaning effect and cleaning efficiency of the air eye.

Description

Technical Field

[0001] The invention belongs to the technical field of copper smelting equipment, and in particular relates to an air eye cleaning device and an air eye cleaning method. Background Art

[0002] In the converter smelting process of copper pyrometallurgy, air needs to be continuously introduced into the furnace through the converter's tuyere to ensure the smooth progress of oxidation and reduction. Due to the fluidity of molten copper and copper slag and the characteristics of rapid solidification when cooled, the tuyere of the furnace body is often blocked by solidified molten copper and copper slag, making it impossible for air to enter the furnace. In order to ensure the continuity of production, it is necessary to poke open the blocked tuyere in time during the production of the converter and anode furnace. The equipment for poking open the tuyere is called tuyere cleaning equipment and tuyere cleaning method.

[0003] The prior art usually uses a mechanical poking method to remove the adhesive in the tuyere. In order to avoid damaging the refractory bricks at the tuyere or damaging the furnace wall during poking and cleaning, Chinese patent CN107164601A discloses a tool for cleaning the internal bonding of the tuyere tube of a converter, including a base assembly, a poking device and a rotating device. The poking device includes a cylinder, which is connected to a slide seat through a two-way flexible connector, and the slide seat is installed on a guide rod. The slide seat can slide on the guide rod. The drill rod is a slender rod-shaped structure connected to the slide seat and is used to poke the furnace tuyere; the rotating device includes an air motor, which is fixedly installed on the slide seat, and the rotating shaft of the air motor is connected to a reducer. The torque output end of the reducer is connected to a transmission shaft through a coupling, and the transmission shaft is connected to a rotating rod, and the torque is transmitted to the rotating rod to drive the rotating rod to rotate. A twist drill is detachably installed at the end of the rotating rod; the extension direction of the drill rod and the rotating rod are consistent with the poking direction. When cleaning the tuyere, first drive the starter motor to rotate the twist drill to clean the cold copper bonded in the tuyere. If there are still burrs in the tuyere after cleaning, remove the twist drill and use the poking device to further clean the tuyere. In this way, two sets of cleaning tools need to be set up and the two sets of cleaning tools cannot be switched online. The twist drill needs to be manually removed before the drill rod can be used to poke the tuyere. The working environment at the tuyere is very harsh and manual operation is very dangerous. In actual application, the tuyere is in a high temperature environment, and the wear rate of the twist drill bit used for drilling will be significantly higher than that of conventional drilling processing. The cost of use is high and frequent shutdowns and replacements are required. In addition, in order to avoid damage to the furnace body due to inaccurate positioning of the twist drill, the outer diameter of the twist drill should be smaller than the outer diameter of the drill rod. In this way, the diameter of the hole drilled by the twist drill at the tuyere is smaller. After the twist drill exits the tuyere, the adhesives around the drilling position flow to the drilled hole and easily block the tuyere again. It is often necessary to repeatedly clean the same tuyere to ensure smooth air supply at the tuyere. Summary of the invention

[0004] The object of the present invention is to provide a tuyere cleaning device and a tuyere cleaning method, which are simple to poke and can reliably maintain the hole.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is:

[0006] A wind eye cleaning device comprises a frame, a slide seat is arranged on the frame, a linear motion actuator drives the slide seat to make linear reciprocating motion under the guidance of a guide rod, a rotation drive mechanism is arranged on the slide seat, the output end of the rotation drive mechanism is connected to the end of a drill rod and drives the drill rod to reciprocate around its own rod core, the other end of the drill rod passes through a first positioning part located at the front end of the frame and cantilevers forward; the drill rod is connected to the rotation drive mechanism through a connecting seat, a second positioning part is arranged at the front end of the slide seat corresponding to the first positioning part, the connecting seat comprises a connecting seat body which is tubular / columnar as a whole, the connecting seat body passes through the second positioning part and forms a limiting fit with the second positioning part in the axial direction of the connecting seat body, the supporting surface of the second positioning part is an arc surface which matches the outer contour of the connecting seat body, and the connecting seat body can be The second positioning part rotates around the axis of its main body; the second positioning part is an upper open groove, and the connecting seat body is inserted into the second positioning part from top to bottom, and the two constitute a vertical linear displacement match; the middle section of the connecting seat body is provided with a limiting boss protruding radially outward, and the outer peripheral surface of the limiting boss is located on the same cylindrical surface, and the middle part of the groove cavity of the second positioning part protrudes outward to form an avoidance groove for accommodating the limiting boss, and the front end wall of the avoidance groove abuts against the front surface of the limiting boss, and the rear end wall of the avoidance groove abuts against the rear surface of the limiting boss, so as to limit the displacement or deflection of the connecting seat body in its axial direction; the groove bottom wall of the second positioning part is a stepped arc surface that matches the outer contour of the connecting seat body and the limiting boss; the front end of the connecting seat body is detachably matched with the fixed end of the drill rod.

[0007] A wind eye cleaning device comprises a frame, a slide seat is arranged on the frame, a linear motion actuator drives the slide seat to perform linear reciprocating motion under the guidance of a guide rod, and is characterized in that: a rotation drive mechanism is arranged on the slide seat, the output end of the rotation drive mechanism is connected to the end of a drill rod and drives the drill rod to reciprocate around its own rod core, and the other end of the drill rod passes through a first positioning part located at the front end of the frame and cantilevers forward; the drill rod is connected to the rotation drive mechanism through a connecting seat, a second positioning part is arranged at the front end of the slide seat corresponding to the first positioning part, and the connecting seat comprises a connecting seat body which is tubular / columnar as a whole, the connecting seat body passes through the second positioning part and is formed with the connecting seat body The second positioning part is a limited fit in the axial direction, and the supporting surface of the second positioning part is an arc surface that matches the outer contour of the connecting seat body, and the connecting seat body can rotate around its body axis in the second positioning part; the second positioning part is an upper open groove, and the connecting seat body is inserted into the second positioning part from top to bottom, and the two constitute a vertical linear displacement fit, or the second positioning part is a hole whose inner contour matches the outer contour of the connecting seat body; the front and rear ends of the connecting seat body are respectively provided with limiting bosses, and the limiting bosses are abutted against the end wall of the second positioning part to limit the displacement or deflection of the connecting seat body in its axial direction; the front end of the connecting seat body is detachably matched with the fixed end of the drill rod.

[0008] A method for cleaning an air eye using the air eye cleaning device as described above comprises the following steps:

[0009] Step A: Each tuyere of the converter is provided with a pressure sensor for monitoring the wind pressure in the tuyere.

[0010] When the pressure value monitored by the pressure sensor exceeds the threshold range, it is determined that the corresponding wind eye is blocked, and the drive rack is moved to the abnormal wind eye;

[0011] Step B: The linear motion actuator drives the slide to move forward, and the displacement sensor of the linear motion actuator monitors the displacement distance of the linear drive rod.

[0012] When the displacement distance of the linear drive rod exceeds a preset threshold, it is determined that the drill rod passes through the tuyere and enters the furnace body of the converter;

[0013] Step C: the linear motion actuator maintains the current posture T1s, then the rotary actuator drives the drill rod to reciprocate around its rod center for T2s, and then the linear motion actuator drives the slide to move backward to the initial position of the linear drive rod, T1<T2;

[0014] Step D: If the pressure value monitored by the pressure sensor at the eye of the wind during the cleaning operation returns to within the threshold range, proceed to step E.

[0015] If the pressure value detected by the pressure sensor at the eye of the wind during the cleaning operation still exceeds the threshold range, proceed to step B;

[0016] Step E: driving the frame to move to the initial position.

[0017] Compared with the prior art, the present invention has the following technical effects: the drill rod can poke open the blockage under the action of the linear motion actuator, and then rotate under the action of the rotary drive mechanism. When the drill rod rotates, it needs to stay in the wind eye for a certain period of time. Since the temperature of the drill rod is relatively low, the adhesive at the wind eye mouth is cooled and solidified when the drill rod stays. In this way, even if the drill rod is withdrawn after completing the rotation action, the outline of the poked hole can be reliably maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 It is a three-dimensional schematic diagram of the present invention in use;

[0020] Figure 2 yes Figure 1 A partial enlarged diagram of

[0021] Figure 3It is a three-dimensional schematic diagram of the present invention;

[0022] Figure 4 yes Figure 3 A partial enlarged schematic diagram of

[0023] Figure 5 It is a three-dimensional schematic diagram of the rotating drive mechanism in the initial position and in cooperation with the drill rod;

[0024] Figure 6 It is a three-dimensional schematic diagram of the rotary drive mechanism at the end of the stroke when it cooperates with the drill rod;

[0025] Figure 7 yes Figure 3 A partial enlarged schematic diagram of

[0026] Figure 8 It is a schematic diagram of the cross-sectional view when the drill rod enters the converter furnace body.

[0027] In the figure: 10. frame, 11. linear motion actuator, 111. linear drive rod, 12. guide rod, 13. first positioning part, 20. slide seat, 21. second positioning part, 211. avoidance groove, 30. rotation drive mechanism, 31. rotation actuator, 311. telescopic rod, 32. connecting rod, 33. swing rod, 40. drill rod, 40a. working section, 41. end, 50. connecting seat, 51. connecting seat body, 52. limiting boss, 53. drill rod seat. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is further described in detail below through description of embodiments in conjunction with the accompanying drawings.

[0029] In order to facilitate the understanding of the present invention, the structure of the tuyere 2 on the converter 1 is briefly described here. Figure 8 As shown, the converter 1 in this embodiment includes a metal shell, the inner side of which is lined with an insulation layer, a through hole is provided on the furnace wall of the converter 1, and the outer hole end of the through hole is connected to a three-way joint, the three-way joint includes a straight pipe, and the straight pipe is arranged concentrically with the through hole on the furnace wall of the converter 1, and the straight pipe and the through hole constitute a clean passage 2a for the drill rod 40 to pass through. The other pipe opening of the three-way joint is connected to the gas source, and the pipe opening extends to the side of the straight pipe to avoid the clean passage 2a. The pipe opening connected to the gas source is provided with a pressure sensor 3 for collecting the air pressure at the wind eye 2. In order to monitor the air supply condition of each wind eye 2 in real time, a pressure sensor 3 is provided at each wind eye 2 of the converter 1 in this embodiment.

[0030] As attached Figure 1 , 2As shown, a plurality of tuyeres 2 are provided at intervals along the axial direction of the outer wall of the horizontally arranged converter 1. When the through holes on the converter wall 1 are blocked by the materials in the furnace, that is, when the materials block the inner end of the cleaning passage 2a or even enter the cleaning passage 2a, the converter 1 needs to be tilted and adjusted so that the pipe body to be cleaned at the tuyeres 2 is in a horizontal position, so as to perform the tuyere cleaning operation. Example

[0031] A wind eye cleaning device includes a frame 10, a slide 20 is provided on the frame 10, a linear motion actuator 11 drives the slide 20 to perform linear reciprocating motion under the guidance of a guide rod 12, a rotation drive mechanism 30 is provided on the slide 20, an output end of the rotation drive mechanism 30 is connected to the end of a drill rod 40 and drives the drill rod 40 to reciprocate around its own rod core, and the other end of the drill rod 40 passes through a first positioning portion 13 located at the front end of the frame 10 and overhangs forward. For the convenience of description, the side adjacent to the converter 1 is defined as the front, and the side away from the converter 1 is defined as the rear. The linear motion actuator 11 drives the drill rod to move radially along the cleaning passage 2a into the furnace. After the blockage is poked open, the rotation drive mechanism 30 is started to drive the drill rod 40 to rotate. This can extend the stay time of the drill rod 40 in the furnace, prevent the adhesive from staying for a long time and solidifying on the rod body of the drill rod 40, and cool down the adhesive at the tuyere. Therefore, after the drill rod 40 is withdrawn, the outline of the poked hole can still be stably maintained to ensure the tuyere cleaning effect.

[0032] Since the rod 40 is relatively long, in order to ensure that the rod 40 can smoothly penetrate the cleaning passage 2a, the posture of the rod 40 needs to be reliably maintained so that it is consistent with the extension direction of the cleaning passage 2a. For this purpose, a first positioning portion 13 is provided to support the front section of the rod body of the rod 40. The first positioning portion 13 is a hole or groove through which the rod 40 can pass and support the rod 40.

[0033] When the above-mentioned wind eye cleaning equipment is used to perform wind eye cleaning operations, the following steps are included:

[0034] Step A: When the pressure value monitored by the pressure sensor 3 exceeds the threshold range, it is determined that the corresponding wind eye 2 is blocked, and the drive frame 10 is moved to the abnormal wind eye 2. Figure 1 As shown, a track extending in a direction parallel to the axial direction of the converter 1 is provided at the bottom of the frame 10, and the running mechanism of the frame 10 drives the frame 10 to move on the track. The positioning of the frame 10 and the air eye 2 to be cleaned is a prior art and will not be described in detail in the present invention.

[0035] Step B: The linear motion actuator 11 drives the slide 20 to move forward, the rotary drive mechanism 30 is disposed on the slide 20 and moves synchronously with the slide 20, and the end of the drill rod 40 is connected to the rotary drive mechanism 30 and will move forward synchronously therewith. The displacement sensor of the linear motion actuator 11 monitors the displacement distance of the linear drive rod 111.

[0036] When the displacement distance of the linear driving rod 111 exceeds the preset threshold, it is determined that the drill rod 40 passes through the tuyere 2 and enters the furnace body of the converter 1, and the process goes to step C.

[0037] It should be noted that if the displacement distance of the linear drive rod 111 has not reached the set threshold, the slide 20 is blocked and cannot move forward, indicating that the nodule blocking the inner end of the cleaning passage 2a blocks the advancement of the drill rod 40. In this case, the linear drive element 11 is required to drive the slide 20 to retreat first and then quickly move forward, so that the drill rod 40 pokes the nodule until the vent 2 is opened. After the vent 2 is opened, the drill rod 40 can continue to move forward, and the displacement distance of the linear drive rod 111 exceeds the preset threshold, and step C is entered.

[0038] Step C: The linear motion actuator 11 maintains the current posture for T1 seconds. During the posture maintenance period, the adhesive on the upper side or the side of the rod section of the drill rod 40 in the converter 1 will flow toward the drill rod 40 and adhere to its surface.

[0039] Then, the actuator 31 is rotated to drive the drill rod 40 to reciprocate around its rod center for T2 seconds. Before the adhesive attached to the surface of the drill rod 40 solidifies, the drill rod 40 rotates and separates from the adhesive to prevent the adhesive from solidifying on the rod body of the drill rod 40 and making the drill rod 40 unable to withdraw from the converter 1. During the rotation of the drill rod 40, the temperature around the drill rod 40 is lower than the temperature in the converter 1, and the adhesive at the tuyere is cooled and solidified, so that the hole can be stably maintained.

[0040] Then the linear motion actuator 11 drives the slide 20 to move backward to the initial position of the linear drive rod 111 .

[0041] That is to say, after the drill rod 40 pokes open the tuyere 2 and penetrates the cleaning passage 2a, it maintains the time length T1 in order to allow the adhesive on the side of the poked hole to move toward the poked hole; then the drill rod 40 rotates for T2 time in order to allow the adhesive that has moved to the poked hole to solidify, thereby maintaining the contour of the poked hole, and further preventing the adhesive from re-blocking the tuyere 2 after the drill rod 40 is withdrawn from the converter 1, thereby ensuring the cleaning effect of the tuyere 2 and ensuring smooth air supply to the tuyere 2.

[0042] In specific implementation, in order to prevent the adhesive from solidifying on the surface of the drill rod 40, T1 is less than or equal to 3. In this embodiment, T1 is 2 to 3. In order to improve the cleaning efficiency while ensuring the cleaning effect, T1 < T2 ≤ 10s. In this embodiment, according to the working condition of the converter 1, T1 is 5 to 6 or 7 to 8.

[0043] In this embodiment, the cross section of the working section 40a of the drill rod 40 is a regular polygon, that is, the working section 40a is prismatic. In this way, when the drill rod 40 rotates, the outer surface of the working section 40a rotates around its rod core to push the adhesive material adjacent to the peripheral surface of the drill rod 40 to separate it from the rod body of the drill rod 40, and at the same time, the diameter of the hole to be poked can be expanded. The rotation of the drill rod 40 creates a gap so that air can enter the furnace in time, which promotes the stable formation of the adhesive material at the poked hole, and further prevents the adhesive material from flowing and blocking the air eye again after the drill rod 40 is withdrawn. Figure 5 , 6 As shown, the working section 40a is a hexagonal rod.

[0044] Step D: If the pressure value monitored by the pressure sensor 3 at the wind eye 2 where the cleaning operation is being performed returns to within the threshold range, proceed to step E.

[0045] If the pressure value detected by the pressure sensor 3 at the wind eye 2 which is being cleaned still exceeds the threshold range, it means that the wind eye 2 is blocked again, and the process goes to step B.

[0046] Step E: driving the frame 10 to move to the initial position. Example

[0047] In this embodiment, in order to prevent the connection point between the drill rod 40 and the rotation drive mechanism 30 from being damaged when the drill rod 40 pokes the wind eye 2, a connection seat 50 is used to transitionally connect the drill rod 40 and the rotation drive mechanism 30.

[0048] The front end of the slide 20 is provided with a second positioning portion 21 corresponding to the first positioning portion 13, and the connecting seat 50 includes a connecting seat body 51 that is tubular / columnar as a whole, and the connecting seat body 51 penetrates the second positioning portion 21 and forms a limit fit with the connecting seat body 51 in the axial direction. In this way, when the drill rod 40 continuously pokes the wind eye 2, the axial force borne by the drill rod 40 will be transmitted to the slide 20 through the connecting seat 50, and the slide 20 is connected to the linear drive rod 111 of the linear motion actuator 11 through a floating joint, which can eliminate the axial movement and radial eccentricity of the drill rod 40 when poking the wind eye 2. The lead wire of the linear drive rod 111 can be eliminated, and the impact force generated by the repeated poking action can be alleviated. The floating joint described can apply the floating joint disclosed in Chinese patent CN105043109A.

[0049] This embodiment is shown in the attached Figure 4-6As shown, the second positioning portion 21 is an upper opening groove, and the connecting seat body 51 is inserted into the second positioning portion 21 from top to bottom, and the two form a vertical linear displacement match. The middle section of the connecting seat body 51 is provided with a limiting boss 52 protruding outward along its radial direction, and the outer peripheral surface of the limiting boss 52 is located on the same cylindrical surface. The middle part of the groove cavity of the second positioning portion 21 protrudes outward to form an avoidance groove 211 for accommodating the limiting boss 52, and the front end wall of the avoidance groove 211 abuts against the front surface of the limiting boss 52, and the rear end wall of the avoidance groove 211 abuts against the rear surface of the limiting boss 52, so as to limit the displacement or deflection of the connecting seat body 51 in its axial direction.

[0050] The groove bottom wall of the second positioning portion 21 is a stepped arc surface that matches the outer contour of the connection seat body 51 and the limiting boss 52. That is, the supporting surface of the second positioning portion 21 is an arc surface that matches the outer contour of the connection seat body 51, so that the connection seat body 51 can rotate around its body axis in the second positioning portion 21.

[0051] In order to reliably position the drill rod 40, the positioning base surfaces of the correspondingly arranged first positioning portion 13 and second positioning portion 21 are arranged parallel to the hole core of the wind eye 2, that is, when the drill rod 40 is directly or transitionally matched with the first positioning portion 13 and the second positioning portion 21, its rod core coincides with the hole core of the wind eye 2, so as to avoid interference with the wind eye 2 and damage to the structure of the wind eye 2 when the drill rod 40 is displaced under the drive of the linear motion actuator 11. In this embodiment, the first positioning portion 13 is an upper open groove, and its positioning base surface is the groove bottom surface supporting the drill rod 40; the second positioning portion 21 is an upper open groove, and its positioning base surface is the groove bottom surface supporting the connecting seat 50. Further, in this embodiment, the axis of the connecting seat body 51 coincides with the rod center of the drill rod 40, so that it is only necessary to ensure that the groove bottom surfaces of the first positioning portion 13 and the second positioning portion 21 are concentric and arranged horizontally to ensure that the drill rod 40 is reliably positioned on the base 10.

[0052] In this embodiment, since the drill rod 40 needs to be replaced frequently, the front end of the connecting seat body 51 is detachably matched with the fixed end of the drill rod 40. Figure 4 As shown, the fixed end of the drill rod 40 is provided with a terminal 41, the front end of the connecting seat body 51 is provided with a drill rod seat 53, the seat body of the drill rod seat 53 is provided with a chamber for accommodating the terminal 41, the terminal 41 is clamped in the chamber and abuts against the front end wall of the chamber, the front end wall is provided with a notch for the rod body of the drill rod 40 to pass through, and the screw passes through the seat body of the drill rod seat 53 and abuts against the terminal 41 to achieve a fastening connection between the two. In this embodiment, in order to facilitate processing and positioning, the terminal 41 is a square block.

[0053] In this embodiment, the rotation driving mechanism 30 includes a rotation actuator 31 with telescopic motion, and the rotation actuator 31 can be a pneumatic cylinder, an oil cylinder, etc.

[0054] As attached Figure 3 , 5 6, one end of the rotating actuator 31 is hingedly connected to the slide seat 20 and the hinge core axis is parallel to the rod center of the guide rod 12, the telescopic rod 311 of the rotating actuator 31 is hingedly connected to the connecting rod 32, and a plurality of rocker rods 33 are rotatably connected to the connecting rod 32, and the other end of the rocker rod 33 is fixedly connected to the connecting seat body 51 and forms a synchronous rotation cooperation therewith, the rod lengths of each rocker rod 33 are consistent, and the displacement surfaces of the telescopic rod 311, the connecting rod 32, and the rocker rod 33 are respectively perpendicular to the axis center of the connecting seat body 51.

[0055] The telescopic movement of the telescopic rod 311 drives the connecting rod 32 to move, and the connecting rod 32 drives the swing rod 33 to swing, so that the drill rod 40 reciprocates around its own rod center under the constraints of the first positioning portion 13 and the second positioning portion 21. When the rotation drive mechanism 30 of this embodiment drives the drill rod 40 to rotate, the connecting seat 50 is always located at a low position due to the effect of gravity, the swing rod 33 swings around the rod center / axis of the drill rod 40 / connecting seat body 51, the connecting rod 32 translates in the vertical plane, and the rotating actuator 31 swings around its hinge axis relative to the slide seat 20 under the drive of the connecting rod 32.

[0056] This embodiment is shown in the attached Figure 5 , 6 As shown, when the rotating actuator 31 is in the initial position, the seat body opening of the drill rod seat 53 faces upward, which is convenient for installing the drill rod 40. The drill rod 40 can reciprocate and its unidirectional rotation angle is greater than or equal to 90°. Example

[0057] The difference between this embodiment and the second embodiment is that the front and rear ends of the connection seat body 51 are respectively provided with limiting bosses 52, and the limiting bosses 52 abut against the end wall of the second positioning portion 21 to limit the displacement or deflection of the connection seat body 51 in its axial direction.

[0058] When the second positioning portion 21 is an upper open groove, the connecting seat body 51 is inserted into the second positioning portion 21 from top to bottom, and the two form a vertical linear displacement fit, and the two limiting bosses 52 and the connecting seat body 51 can be an integrated structure.

[0059] When the second positioning portion 21 is a hole whose inner contour matches the outer contour of the connecting seat body 51, at most one limiting boss 52 and the connecting seat body 51 are an integral structure, and the other limiting boss 52 and the connecting seat body 51 can be threaded, welded or snap-fitted. Example

[0060] The difference between this embodiment and the second embodiment is that the cylinder of the rotating actuator 31 is fixedly mounted on the slide 20, and the swing rod 33 is a rod body with adjustable rod length. When the rotating driving mechanism 30 drives the drill rod 40 to rotate, the connecting rod 32 reciprocates in the rod length direction of the telescopic rod 311; the swing rod 33 swings around the rod center / axis of the drill rod 40 / connecting seat body 51, and the rod length of the swing rod 33 changes during the swinging process. When the rod center of the swing rod 33 is vertical, the rod length of the swing rod 33 is the shortest.

Claims

1. A wind eye cleaning device, comprising a frame (10), a slide seat (20) being arranged on the frame (10), a linear motion actuator (11) driving the slide seat (20) to perform linear reciprocating motion under the guidance of a guide rod (12), characterized in that: The slide seat (20) is provided with a rotation drive mechanism (30), the output end of which is connected to the end of the drill rod (40) and drives the drill rod (40) to reciprocate around its own rod core, and the other end of the drill rod (40) passes through a first positioning portion (13) located at the front end of the frame (10) and protrudes forward; the drill rod (40) is connected to the rotation drive mechanism (30) through a connecting seat (50), and a second positioning portion (21) is provided at the front end of the slide seat (20) corresponding to the first positioning portion (13), and the connecting seat (50) comprises a connecting seat body (51) which is tubular / columnar as a whole, the connecting seat body (51) passes through the second positioning portion (21) and forms a limited fit with the second positioning portion (21) in the axial direction of the connecting seat body (51), the supporting surface of the second positioning portion (21) is an arc surface that matches the outer contour of the connecting seat body (51), and the connecting seat body (51) can rotate around its body axis in the second positioning portion (21); the second positioning portion (21) is provided to the slide seat (20) to prevent the slide seat (20) from rotating. The second positioning portion (21) is an upper open groove, and the connecting seat body (51) is inserted into the second positioning portion (21) from top to bottom, and the two form a vertical linear displacement match; the middle section of the connecting seat body (51) is provided with a limiting boss (52) protruding outward along its radial direction, and the outer peripheral surface of the limiting boss (52) is located on the same cylindrical surface, and the middle part of the groove cavity of the second positioning portion (21) protrudes outward to form an avoidance groove (211) for accommodating the limiting boss (52), and the avoidance groove (21 The front end wall of the avoidance groove (211) is in abutment with the front end surface of the limiting boss (52), and the rear end wall of the avoidance groove (211) is in abutment with the rear end surface of the limiting boss (52), so as to limit the displacement or deflection of the connecting seat body (51) in its axial direction; the groove bottom wall of the second positioning portion (21) is a stepped arc surface that matches the outer contours of the connecting seat body (51) and the limiting boss (52); and the front end of the connecting seat body (51) is detachably matched with the fixed end of the drill rod (40).

2. A wind eye cleaning device, comprising a frame (10), a slide seat (20) being arranged on the frame (10), a linear motion actuator (11) driving the slide seat (20) to perform linear reciprocating motion under the guidance of a guide rod (12), characterized in that: A rotation drive mechanism (30) is provided on the slide seat (20). The output end of the rotation drive mechanism (30) is connected to the end of the drill rod (40) and drives the drill rod (40) to reciprocate around its own rod center. The other end of the drill rod (40) passes through a first positioning portion (13) located at the front end of the frame (10) and protrudes forward. The drill rod (40) is connected to the rotation drive mechanism (30) through a connecting seat (50). A second positioning portion (21) is provided at the front end of the slide seat (20) corresponding to the first positioning portion (13). The connecting seat (50) includes a connecting seat body (51) that is tubular / columnar in shape as a whole. The connecting seat body (51) passes through the second positioning portion (21) and forms a limiting fit with the second positioning portion (21) in the axial direction of the connecting seat body (51). The bearing of the second positioning portion (21) The supporting surface is an arc surface that matches the outer contour of the connecting seat body (51), and the connecting seat body (51) can rotate around its body axis in the second positioning portion (21); the second positioning portion (21) is an upper open groove, and the connecting seat body (51) is inserted into the second positioning portion (21) from top to bottom, and the two form a vertical linear displacement match, or the second positioning portion (21) is a hole whose inner contour matches the outer contour of the connecting seat body (51); the front end and the rear end of the connecting seat body (51) are respectively provided with limiting bosses (52), and the limiting bosses (52) are abutted against and matched with the end wall of the second positioning portion (21) to limit the displacement or deflection of the connecting seat body (51) in its axial direction; the front end of the connecting seat body (51) is detachably matched with the fixed end of the drill rod (40).

3. The wind eye cleaning device according to claim 1 or 2, characterized in that: The axis center of the connecting seat body (51) coincides with the rod center of the drill rod (40).

4. The wind eye cleaning device according to claim 3, characterized in that: The fixed end of the drill rod (40) is provided with an end head (41), the front end of the connecting seat body (51) is provided with a drill rod seat (53), the seat body of the drill rod seat (53) is provided with a chamber for accommodating the end head (41), the end head (41) is clamped in the chamber and abuts against the front end wall of the chamber, the front end wall is provided with a notch for the rod body of the drill rod (40) to pass through, and a screw passes through the seat body of the drill rod seat (53) and abuts against the end head (41) to achieve a fastening connection between the two.

5. The wind eye cleaning device according to claim 4, characterized in that: The rotary drive mechanism (30) comprises a rotary actuator (31) for telescopic movement, one end of the rotary actuator (31) being hingedly connected to the slide seat (20) and the hinge core axis being parallel to the rod center of the guide rod (12), a telescopic rod (311) of the rotary actuator (31) being hingedly connected to a connecting rod (32), a plurality of swing rods (33) being rotatably connected to the connecting rod (32), the other end of the swing rod (33) being fixedly connected to the connecting seat body (51) and forming synchronous rotational cooperation therewith, the rod lengths of the swing rods (33) being the same, and the displacement surfaces of the telescopic rod (311), the connecting rod (32) and the swing rod (33) being respectively perpendicular to the axis center of the connecting seat body (51); The telescopic movement of the telescopic rod (311) drives the connecting rod (32) to move, and the connecting rod (32) drives the swing rod (33) to swing, so that the drill rod (40) reciprocates around its own rod center under the constraints of the first positioning portion (13) and the second positioning portion (21).

6. The wind eye cleaning device according to claim 5, characterized in that: The rotating actuator (31) is fixedly mounted on the slide seat (20), and the swing rod (33) is a rod body with adjustable length.

7. The wind eye cleaning device according to claim 1 or 2, characterized in that: The cross section of the working section (40a) of the drill rod (40) is a regular polygon.

8. A method for cleaning an air eye using the air eye cleaning device according to claim 1 or 2, comprising the following steps: Step A: A pressure sensor (3) for monitoring the wind pressure in the tuyere (2) is provided at each tuyere (2) of the converter (1). When the pressure value monitored by the pressure sensor (3) exceeds a threshold range, it is determined that the corresponding wind eye (2) is blocked, and the drive frame (10) is moved to the abnormal wind eye (2); Step B: The linear motion actuator (11) drives the slide (20) to move forward, and the displacement sensor of the linear motion actuator (11) monitors the displacement distance of the linear drive rod (111). When the displacement distance of the linear driving rod (111) exceeds a preset threshold value, it is determined that the drill rod (40) has passed through the tuyere (2) and entered the interior of the converter (1); Step C: the linear motion actuator (11) maintains the current posture T1s, then the rotary actuator (31) drives the drill rod (40) to reciprocate around its rod center for T2s, and then the linear motion actuator (11) drives the slide (20) to move backward to the initial position of the linear drive rod (111), T1 < T2; Step D: If the pressure value monitored by the pressure sensor (3) at the wind eye (2) undergoing the cleaning operation returns to within the threshold range, proceed to step E. If the pressure value detected by the pressure sensor (3) at the wind eye (2) where the cleaning operation is being performed still exceeds the threshold range, proceed to step B; Step E: driving the frame (10) to move to the initial position.

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