A paste blocking cleaning device for sintering machine grate bars

Abstract

The utility model discloses a sintering machine grate bar paste blocking cleaning device. The utility model discloses a device includes: transmission device includes power component, main drive disc, first connecting rod, auxiliary drive disc, pivot, pole, power component includes frequency conversion motor and cycloidal pin wheel speed reducer, and frequency conversion motor is connected with main drive disc power through cycloidal pin wheel speed reducer, and the both ends of pivot are rotatably connected to base, and auxiliary drive disc is coaxially installed on the pivot, and the both ends of first connecting rod are respectively with main drive disc, auxiliary drive disc eccentric rotation connection, and the pole is evenly distributed on the pivot along the axial direction, and the cleaning device includes linear bearing, rammer, second connecting rod and axle pin, and linear bearing is vertically arranged on fixed plate, and one end of rammer is slidably connected with linear bearing, and the both ends of second connecting rod are respectively rotatably connected with the other end of rammer and pole. The utility model can carry out the automatic mechanical unblocking to sintering machine grate bar, reduces manual operation, avoids the damage to staff.

Description

Technical Field

[0001] This utility model relates to the field of sintering machines, specifically to a device for cleaning clogging sintering machine grate bars. Background Technology

[0002] Sintering machines are important equipment in the sintering operations of ironmaking plants in metallurgical enterprises. However, during the sintering process, small particles of sinter in the bottom material can easily clog the gaps between the grate bars. Furthermore, due to the stickiness of the sinter, it adheres to the grate bars, causing blockage. If not cleaned in time, the adhesion will become more and more serious, resulting in poor air permeability and a decrease in the quality and output of sinter.

[0003] Current problems: During normal sintering production, the sintering machine trolley rotates continuously. When the grate bars are severely clogged, it is necessary to manually use steel pipes to mechanically knock the particles out of the grate bars when the trolley returns to the machine head position. However, the machine head area is close to the ignition furnace, with high temperature and dust, which causes serious health damage to the workers. In addition, manual cleaning is not thorough, and the clog problem cannot be effectively solved. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a sintering machine grate cleaning device that can automatically and mechanically clean the sintering machine grate, reduce manual operation, and avoid harm to workers.

[0005] To achieve the above objectives, the present invention proposes the following technical solution:

[0006] A sintering machine grate clogging cleaning device includes a trolley, a transmission device, a cleaning device, and a support. The grate is placed on the trolley, the transmission device is mounted on the support, and the cleaning device cooperates with the transmission device to shake and clear the grate. The support includes a base, a support frame, and a fixing plate. The fixing plate is mounted above the base via the support frame, and the support is located below the trolley.

[0007] The transmission device includes a power assembly, a main transmission disc, a first connecting rod, a secondary transmission disc, a rotating shaft, and levers. The power assembly is connected to the main transmission disc via a coupling and a bearing housing. The power assembly includes a variable frequency motor and a cycloidal pinwheel reducer. The variable frequency motor outputs power through the cycloidal pinwheel reducer to drive the main transmission disc to rotate. Both ends of the rotating shaft are rotatably connected to the base. The secondary transmission disc is coaxially mounted on the rotating shaft. One end of the first connecting rod is eccentrically rotatably connected to the main transmission disc, and the other end of the first connecting rod is eccentrically rotatably connected to the secondary transmission disc. The levers are evenly distributed axially on the rotating shaft.

[0008] The cleaning device includes a linear bearing, a tamping rod, a second connecting rod, and a pin. The linear bearing is vertically mounted on a fixed plate. One end of the tamping rod is slidably connected to the linear bearing, allowing the tamping rod to slide vertically along the linear bearing. The other end of the tamping rod is rotatably connected to one end of the second connecting rod via a pin. The other end of the second connecting rod is rotatably connected to a lever on a rotating shaft.

[0009] The variable frequency motor outputs power through the cycloidal pinwheel reducer to drive the main drive disc to rotate. The main drive disc and the auxiliary drive disc form a crank-rocker mechanism through the first connecting rod. The rotation of the main drive disc causes the auxiliary drive disc to oscillate. The tamping rod, the second connecting rod, and the lever form a linear reciprocating motion mechanism. The oscillation of the auxiliary drive disc causes the rotating shaft to oscillate periodically. The lever on the rotating shaft then oscillates periodically, while simultaneously causing the tamping rod to slide vertically back and forth, so that the tamping rod can contact the grate bars and give the grate bars a vertical upward pushing force, causing the grate bars to push upward, thereby realizing the action of tamping the grate bars, causing the accumulated material in the gaps between the grate bars to fall off, and completing the work of clearing the grate bars.

[0010] Preferably, the system also includes a control unit and a monitoring unit. The control unit includes a field controller and a main control room controller. The field controller is connected to the motor control terminal of the variable frequency motor, allowing field personnel to operate the field controller to control the start and stop of the cleaning device. The monitoring unit includes a high-definition camera installed at the work site and a main control room display connected to the high-definition camera. The high-definition camera is placed in front of the cleaner and can transmit the captured image of the grate bars to the main control room display. The main control room controller and the main control room display are located in the main control room and are connected to the motor control terminal of the variable frequency motor. On-duty personnel can monitor the grate bar blockage in real time, input commands to the main control room controller based on the grate bar blockage, and send commands to the motor control terminal of the variable frequency motor to adjust the vibration intensity and cleaning frequency of the cleaning device.

[0011] The aforementioned field controllers and main control room controllers are existing technologies. The field controllers and main control room controllers can be PLC controllers or other controllers. The connection between the field controllers and main control room controllers and the motor control terminals of the variable frequency motors is also existing technology.

[0012] Preferably, the swing angle of the secondary transmission disc is 60°, and the levers are arranged in two rows on both sides of the swing angle center line of the rotating shaft.

[0013] Preferably, the two rows of levers are staggered on both sides of the center line of the pivot angle, with a spacing of 400mm between each row of levers, so that the axial spacing between the levers on both sides is 200mm.

[0014] Preferably, the main control room controller is equipped with a data processing terminal and is remotely connected to the motor control terminal of the variable frequency motor. The main control room controller can send instructions to the data processing terminal, and the data processing terminal processes the data and sends commands to the motor control terminal of the variable frequency motor.

[0015] Preferably, the bracket further includes a support roller and a roller bracket. The support roller includes two rollers, which are rotatably mounted on the base via the roller bracket and positioned below the rotating shaft to support the rotating shaft and further increase the stability of the transmission device.

[0016] Preferably, the fixing plate is provided with a baffle plate to prevent accumulated material from falling onto the linear bearing and to prevent excessive accumulation of material from damaging the parts.

[0017] Preferably, the bracket is triangular in shape, and the support frame is a diagonal support frame.

[0018] Preferably, the main drive disc is provided with a first eccentric shaft, the auxiliary drive disc is provided with a second eccentric shaft, the first eccentric shaft and the second eccentric shaft are fitted with bushings, the bushings have oil grooves, the two ends of the first connecting rod are rotatably connected to the first eccentric shaft and the second eccentric shaft respectively, the oil grooves are used for lubrication to reduce the rotational friction between the first connecting rod and the first eccentric shaft and the second eccentric shaft.

[0019] Preferably, a retaining ring is provided on the outer side of the connection between the first connecting rod and the first eccentric shaft and the second eccentric shaft to prevent the first connecting rod from moving axially.

[0020] Preferably, a bushing is provided on the pin at the rotatable connection between the second connecting rod and the lever for lubrication of the connection, thereby reducing rotational friction and improving the service life of the components.

[0021] When in use, the bracket is installed below the return track of the sintering machine trolley, and the transmission device and cleaning device are installed on the bracket; then the on-site staff operates the on-site controller to start the device and the sintering machine.

[0022] After the sintering machine trolley unloads material at the tail end, it enters the return track and flips over. When the trolley reaches the position of this unit, the operator in the main control room sends a start command to the motor control terminal of the variable frequency motor. Then, the variable frequency motor outputs power through the cycloidal pinwheel reducer to drive the main drive plate to rotate, which in turn drives the auxiliary drive plate to swing, causing the tamping rod to perform periodic vertical linear motion. When the tamping rod rises to the top, it lifts the grate bar by 5mm. The shaking of the grate bar causes the accumulated material in the gap between the grate bars to fall off, thus completing the unblocking work of the trolley grate bar.

[0023] The two levers on the rotating shaft are arranged in an alternating manner. When one of the levers pushes against the grate bar, the grate bar moves relative to the adjacent grate bar, and the accumulated material in the gap between the grate bars will fall off, which can maximize the clearing of the entire row of grate bars on the trolley.

[0024] The on-duty personnel in the main control room monitor the grate bar blockage in real time, and input instructions to the controller in the main control room according to the blockage status. They also send corresponding instructions to the motor control terminal of the variable frequency motor to adjust the vibration force and cleaning frequency of the cleaning device to optimize the blockage removal effect.

[0025] The beneficial effects of this utility model are as follows:

[0026] This invention utilizes the working principle of a crank-rocker mechanism to achieve reciprocating oscillation of the rotating shaft on both sides. It also utilizes the working principle of a linear reciprocating motion mechanism to connect the tamping rod to the rotating shaft via a connecting rod. Through the periodic oscillation of the rotating shaft, the tamping bars of the tamping rods on both sides are activated, resulting in a simple structure.

[0027] This invention utilizes staggered levers on a rotating shaft. When one lever touches the grate bar, the grate bar moves relative to the adjacent grate bar, causing the accumulated material in the gap between the grate bars to fall off. This maximizes the unblocking of the entire row of grate bars on the trolley.

[0028] The tamping rod in this invention adopts a hinged joint with a pin, which makes it easy to disassemble vulnerable parts and reduces subsequent maintenance costs.

[0029] In this invention, the spacing of the tamping rods can be adjusted automatically according to the size of the trolley. If the trolley grate bars are severely clogged, the spacing of the tamping rods can be reduced, and more sets of tamping rods can be added to achieve the unclogging work. It is flexible, easy to operate, and has a significant unclogging effect.

[0030] By adopting the above solution, this utility model can automatically and mechanically clear blockages from the sintering machine grate, reducing manual operation and avoiding harm to workers. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is an overall structural diagram of the present invention.

[0033] Figure 2 This is a schematic diagram of the transmission device.

[0034] Figure 3This is a schematic diagram of the swing angle of the transmission device.

[0035] Figure 4 This is a schematic diagram of the cleaning device.

[0036] Figure 5 This is a schematic diagram of the support structure.

[0037] Figure 6 This is a schematic diagram of the transmission device when it reaches its first limit position.

[0038] Figure 7 This is a schematic diagram of the transmission device when it reaches the second limit position.

[0039] Figure 8 This is a schematic diagram showing the setup of the control unit and monitoring unit.

[0040] In the diagram, 1-cart; 2-transmission device; 3-cleaning device; 4-support; 201-cycloidal pinwheel reducer; 202-coupling; 203-bearing seat; 204-main transmission disc; 205-first connecting rod; 206-secondary transmission disc; 207-shaft; 208-lever; 209-bearing seat; 210-retaining ring; 301-second connecting rod; 302-shaft pin; 303-tamping rod; 304-linear bearing; 401-base; 402-support roller; 403-support frame; 404-fixed plate. Detailed Implementation

[0041] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0042] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0043] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] like Figure 1 As shown, a sintering machine grate clogging cleaning device includes a trolley 1, a transmission device 2, a cleaning device 3, and a support 4. The grate bars are placed on the trolley 1, the transmission device 2 is mounted on the support 4, and the cleaning device 3 cooperates with the transmission device 2 to shake and clear the clogging of the grate bars. The support 4 includes a base 401, a support frame 403, and a fixing plate 404. The fixing plate 404 is positioned above the base 401 via the support frame 403. Figure 5 As shown, the bracket 4 is located below the trolley 1.

[0046] like Figure 2 As shown, the transmission device 2 includes a power assembly, a main transmission disc 204, a first connecting rod 205, a secondary transmission disc 206, a rotating shaft 207, and a lever 208. The power assembly is poweredly connected to the main transmission disc 204 via a coupling 202 and a bearing seat 203. The power assembly includes a variable frequency motor and a cycloidal pinwheel reducer 201. The variable frequency motor outputs power through the cycloidal pinwheel reducer 201 to drive the main transmission disc 204 to rotate. Both ends of the rotating shaft 207 are rotatably connected to the base 401. The secondary transmission disc 206 is coaxially mounted on the rotating shaft 207. One end of the first connecting rod 205 is eccentrically rotatably connected to the main transmission disc 204, and the other end of the first connecting rod 205 is eccentrically rotatably connected to the secondary transmission disc 206. The levers 208 are evenly distributed axially on the rotating shaft 207.

[0047] like Figure 4 As shown, the cleaning device 3 includes a linear bearing 304, a tamping rod 303, a second connecting rod 301, and a pin 302. The linear bearing 304 is vertically mounted on the fixed plate 404. One end of the tamping rod 303 is slidably connected to the linear bearing 304, and the tamping rod 303 can slide vertically along the linear bearing 304. The other end of the tamping rod 303 is rotatably connected to one end of the second connecting rod 301 through the pin 302. The other end of the second connecting rod 301 is rotatably connected to the lever 208 on the rotating shaft 207.

[0048] The variable frequency motor outputs power through the cycloidal pinwheel reducer to drive the main drive disk 204 to rotate. The main drive disk 204 and the auxiliary drive disk 206 form a crank-rocker mechanism through the first connecting rod 205. The rotation of the main drive disk 204 causes the auxiliary drive disk 206 to swing. The tamping rod 303, the second connecting rod 301 and the lever 208 form a linear reciprocating motion mechanism. The swing of the auxiliary drive disk 206 causes the rotating shaft 207 to swing periodically. The lever 208 on the rotating shaft 207 then swings periodically, while driving the tamping rod 303 to slide vertically back and forth, so that the tamping rod 303 can contact the grate bar and give the grate bar a vertical upward pushing force, causing the grate bar to push upward, thereby realizing the action of tamping the grate bar, causing the accumulated material in the gap of the grate bar to fall off, and completing the work of clearing the grate bar.

[0049] Specifically, when the auxiliary transmission disc 206 swings to its first limit position, i.e., the leftmost position, as follows: Figure 6 As shown, the left lever 208 on the rotating shaft 207 swings to the left, at which point the left tamping rod 303 is lowered via the second connecting rod 301, and the right lever 208 swings to the vertical position, causing the right tamping rod 303 to contact the grate bars and move the grate bars upward by 5mm, thus completing one tamping action. Conversely, when the auxiliary transmission disc 206 swings to the second limit position, i.e., the rightmost position, as... Figure 7 As shown, the left tamping rod 303 rises and the right tamping rod 303 falls, completing another tamping action of the tamping bar.

[0050] like Figure 8 As shown, it also includes a control unit and a monitoring unit. The control unit includes a field controller and a main control room controller. The field controller is connected to the motor control terminal of the variable frequency motor. Field personnel operate the field controller to control the start and stop of the cleaning device. The monitoring unit includes a high-definition camera installed at the work site and a main control room display connected to the high-definition camera. The high-definition camera is placed in front of the cleaner and can transmit the captured image of the grate bars to the main control room display. The main control room controller and the main control room display are located in the main control room. The main control room controller is connected to the motor control terminal of the variable frequency motor. On-duty personnel can monitor the grate bar blockage in real time, input commands to the main control room controller based on the grate bar blockage, and send commands to the motor control terminal of the variable frequency motor to adjust the vibration intensity and cleaning frequency of the cleaning device.

[0051] like Figure 3 As shown, the swing angle of the auxiliary transmission disk 206 is 60°, and the levers 208 are arranged in two rows on both sides of the swing angle center line of the rotating shaft 207. The two rows of levers 208 are staggered on both sides of the swing angle center line of the rotating shaft 207, and the spacing between each row of levers 208 is 400mm, so that the axial spacing between the levers 208 on both sides is 200mm.

[0052] like Figure 5 As shown, the bracket 4 also includes a support roller 402 and a roller bracket. The support roller 402 includes two rollers, which are rotatably mounted on the base 401 via the roller bracket and placed below the rotating shaft 207 to support the rotating shaft 207 and further increase the stability of the transmission device 2.

[0053] The fixed plate 404 is equipped with a baffle plate to prevent accumulated material from falling onto the linear bearing 304 and to prevent excessive accumulation of material from damaging the parts.

[0054] The bracket 4 is triangular in shape, and the support frame 403 is a diagonal support frame.

[0055] When in use, the bracket 4 is installed below the return track of the sintering machine trolley 1, and the transmission device 2 and the cleaning device 3 are installed on the bracket; then the on-site staff operates the on-site controller to start the device and start the sintering machine.

[0056] After the sintering machine trolley 1 unloads material at the tail end of the machine, it enters the return track and the trolley rotates. When the trolley 1 reaches the position of this device, the operator in the main control room sends a start command to the motor control terminal of the variable frequency motor. Then, the variable frequency motor outputs power through the cycloidal pinwheel reducer 201 to drive the main transmission disc 204 to rotate, which in turn drives the auxiliary transmission disc 206 to swing, causing the tamping rod 303 to perform periodic vertical linear motion. When the tamping rod 303 rises to the top, it lifts the grate bar by 5mm. The shaking of the grate bar causes the accumulated material in the gap between the grate bars to fall off, thus completing the unblocking work of the trolley grate bar.

[0057] The two levers 208 on the rotating shaft 207 are arranged in an alternating manner. When the tamping rod 303 on one side hits the grate bar, the grate bar and the adjacent grate bar will be relatively displaced, and the accumulated material in the gap between the grate bars will fall off, which can maximize the clearing of the entire row of grate bars on the trolley.

[0058] The on-duty personnel in the main control room monitor the grate bar blockage in real time, and input instructions to the controller in the main control room according to the blockage status. They also send corresponding instructions to the motor control terminal of the variable frequency motor to adjust the vibration force and cleaning frequency of the cleaning device to optimize the blockage removal effect.

[0059] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for cleaning clogged sintering grate bars in a sintering machine, comprising a trolley and a support, wherein the grate bars are placed on the trolley, the support is located below the trolley, the support includes a base, a support frame, and a fixing plate, and the fixing plate is mounted above the base via the support frame, characterized in that: It also includes a transmission device, a cleaning device, and a support. The transmission device includes a power component, a main transmission disc, a first connecting rod, a secondary transmission disc, a rotating shaft, and a lever. The power component includes a variable frequency motor and a cycloidal pinwheel reducer. The variable frequency motor is poweredly connected to the main transmission disc through the cycloidal pinwheel reducer. The two ends of the rotating shaft are rotatably connected to the base. The secondary transmission disc is coaxially mounted on the rotating shaft. The two ends of the first connecting rod are eccentrically rotatably connected to the main transmission disc and the secondary transmission disc, respectively. The levers are evenly distributed axially on the rotating shaft. The cleaning device includes a linear bearing, a tamping rod, a second connecting rod, and a shaft pin. The linear bearing is vertically mounted on a fixed plate. One end of the tamping rod is slidably connected to the linear bearing. The two ends of the second connecting rod are rotatably connected to the other end of the tamping rod and the lever, respectively.

2. The sintering machine grate clogging cleaning device according to claim 1, characterized in that: It also includes a control unit and a monitoring unit. The control unit includes a field controller and a main control room controller. The field controller is connected to the motor control terminal of the variable frequency motor. The monitoring unit includes a high-definition camera installed at the work site and a main control room display connected to the high-definition camera. The main control room controller is connected to the motor control terminal of the variable frequency motor.

3. The sintering machine grate clogging cleaning device according to claim 1, characterized in that: The swing angle of the auxiliary transmission disc is 60°, and the levers are arranged in two rows on both sides of the swing angle center line of the rotating shaft.

4. The sintering machine grate clogging cleaning device according to claim 1, characterized in that: The bracket also includes a support roller and a roller bracket. The support roller includes two rollers, which are rotatably mounted on the base via the roller bracket and positioned below the rotating shaft.

5. The sintering machine grate clogging cleaning device according to claim 1, characterized in that: The fixing plate is equipped with a baffle plate.

6. The sintering machine grate clogging cleaning device according to claim 1, characterized in that: The bracket is triangular in shape, and the support frame is a diagonal support frame.

7. The sintering machine grate clogging cleaning device according to claim 1, characterized in that: The main drive disc is provided with a first eccentric shaft, and the auxiliary drive disc is provided with a second eccentric shaft. The first and second eccentric shafts are fitted with bushings, and the bushings have oil grooves. The two ends of the first connecting rod are rotatably connected to the first and second eccentric shafts, respectively.

8. The sintering machine grate clogging cleaning device according to claim 1, characterized in that: A retaining ring is provided on the outer side of the connection between the first connecting rod and the first eccentric shaft and the second eccentric shaft.

9. A sintering machine grate clogging cleaning device according to claim 1, characterized in that: A bushing is provided on the pivot pin at the rotatable connection between the second connecting rod and the lever.

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