Garbage incinerator and grate device thereof

Abstract

The present invention discloses a grate device, including a grate driving mechanism for driving a movable grate to reciprocately eject and retract, the grate driving mechanism including a base fixed on a frame and a driving beam linked with the movable grate, a driving cylinder is provided on the base, the driving cylinder action end is linked with the driving beam through a driving rod, the angle between the extension direction of the driving cylinder action end and the garbage conveying direction is an acute angle; the driving cylinder action end is linked with a first hinge sleeve, the first hinge shaft is inserted and rotated in the first hinge sleeve, the driving rod is linked with a second hinge sleeve toward the driving cylinder end, the second hinge shaft is inserted and rotated in the second hinge sleeve, the first hinge sleeve and the second hinge sleeve are linked with a transfer rod; the axes of the first hinge shaft and the second hinge shaft are perpendicular to each other and perpendicular to the axis of the transfer rod, and the axis of one of the first hinge shaft and the second hinge shaft extends in the horizontal direction. The present invention also discloses a garbage incinerator using the above-mentioned grate device.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage incinerators and matching garbage conveying equipment, and in particular to a grate device. The present invention also relates to a garbage incinerator using the grate device. Background Art

[0002] Domestic waste power generation has become the mainstream technology for domestic waste treatment in my country, and waste incineration is one of the core treatment processes. In the specific implementation of the current waste incineration process, the reciprocating grate incinerator is the most widely used waste incineration equipment in the industry, which has great advantages in equipment operation stability, operation economy and environmentally friendly emission standards.

[0003] For the existing grate type incinerator, the grates can be divided into forward push type and reverse push type according to the movement direction of the grate. Specifically, the movement direction of the forward push grate is consistent with the movement direction of the garbage, while the movement direction of the reverse push grate is opposite to the movement direction of the garbage.

[0004] More specifically, the forward-pushing grate can be divided into a row-moving grate and a motion grate according to the driving form of the grate. A row-moving grate refers to a grate composed of multiple rows of grate beams arranged longitudinally, wherein the moving grate beams and the static grate beams are arranged at intervals, and the rows are staggered and moved, so that the garbage is pushed forward by the reciprocating motion of the moving grate beams; while a motion grate refers to a grate composed of multiple rows of grate beams arranged transversely, wherein the moving grate beams and the static grate beams are arranged at intervals, and the garbage is pushed forward by the reciprocating motion of the moving grate.

[0005] Specifically, in the actual operation of the equipment, the moving grate is driven by the tail hydraulic cylinder, which drives the drive shaft to rotate, and the rotation of the drive shaft drives the drive arm to swing back and forth, thereby pushing the drive beam to do reciprocating motion back and forth through the drive arm, and the drive beam is linked to each longitudinal moving beam, so that each moving beam can do synchronous reciprocating motion back and forth with the drive beam.

[0006] However, although the existing moving grate action mechanism can meet the basic garbage transportation needs, its driving shaft and supporting driving arm and other action mechanisms require a larger vertical space to meet the rotation of the driving shaft and the reciprocating swing space requirements of the driving arm. This requires that sufficient vertical drop space be left when the grate equipment is arranged, which leads to the overall height of the grate equipment being relatively high. The height of the corresponding factory buildings and other facilities also needs to be increased accordingly to match the equipment layout requirements, which in turn leads to an increase in the corresponding civil engineering costs, and also a corresponding increase in the construction and maintenance costs of related garbage treatment plants and other facilities.

[0007] In view of this, how to optimize the grate drive structure to make its equipment structure more compact so as to reduce the space requirement for component layout, thereby reducing the construction and maintenance costs of related supporting facilities such as factory buildings, is an important technical problem that technical personnel in this field currently need to solve. Summary of the invention

[0008] The object of the present invention is to provide a grate device, which has a compact structure and requires a small assembly space for its components, thereby reducing the construction and maintenance costs of related supporting facilities such as factory buildings. Another object of the present invention is to provide a garbage incinerator using the above-mentioned grate device.

[0009] In order to solve the above technical problems, the present invention provides a grate device, comprising a frame and a plurality of movable grates and static grates arranged obliquely from high to low on the top of the frame along the garbage conveying direction, and also comprising a grate driving mechanism capable of driving the movable grate to be reciprocatedly ejected and retracted, the grate driving mechanism comprising a base fixed to the side of the frame and a driving beam linked to the movable grate, a driving cylinder is arranged on the base, an actuating end of the driving cylinder is linked to the driving beam through a driving rod, and an angle between the extending direction of the actuating end of the driving cylinder and the garbage conveying direction is an acute angle;

[0010] The action end of the driving oil cylinder is linked to a first hinge sleeve, a first hinge shaft is rotatably inserted in the first hinge sleeve, one end of the driving rod facing the driving oil cylinder is linked to a second hinge sleeve, a second hinge shaft is rotatably inserted in the second hinge sleeve, and a transfer rod is linked to the first hinge sleeve and the second hinge sleeve;

[0011] The axes of the first hinge shaft and the second hinge shaft are perpendicular to each other and are perpendicular to the axis of the transfer rod. The axis of one of the first hinge shaft and the second hinge shaft extends in a horizontal direction.

[0012] Preferably, a sealing shell having a sealing cavity inside is further provided between the driving oil cylinder and the driving rod, the axis of the first hinge shaft extends in a horizontal direction, and the first hinge sleeve is linked to the outer wall of the sealing shell;

[0013] The second hinge sleeve and the second hinge shaft are both located in the sealing cavity, one end of the driving rod toward the driving oil cylinder extends into the sealing cavity, and a sealing sleeve adapted to the driving rod sleeve is arranged in the sealing cavity.

[0014] Preferably, a buffer supporting assembly capable of supporting the second hinge sleeve is provided inside the sealed cavity;

[0015] The buffer support assembly includes a support plate located below the second hinge sleeve, and also includes a support adjustment mechanism capable of driving the support plate to reciprocate along an axis perpendicular to the drive rod so that the support plate is in full contact with the bottom of the second hinge sleeve.

[0016] Preferably, the support adjustment mechanism comprises an adjustment plate arranged below the support plate, the adjustment plate is arranged parallel to the support plate and has clearance fit, an adjustment spring is embedded between the adjustment plate and the support plate, and the axis of the adjustment spring is perpendicular to the main extension surface of the support plate;

[0017] The buffer support assembly also includes a support bracket fixed on the side wall of the sealing shell, the support plate and the adjustment plate are both located in the support bracket, and the support adjustment mechanism also includes an adjustment bolt threadedly inserted on the outer wall of the support bracket, the adjustment bolt penetrates the outer wall of the support bracket from the outside to the inside along a direction perpendicular to the main extension surface of the support plate, and the inner end of the adjustment bolt abuts against the bottom wall of the adjustment plate.

[0018] Preferably, a limiting boss capable of abutting against the top surface of the supporting plate is protruded from the inner wall of the inner end portion of the supporting bracket.

[0019] Preferably, a buffer roller contacting and cooperating with the second hinge sleeve is provided on the supporting plate.

[0020] Preferably, a synchronous limit assembly is connected to the middle part of the driving rod, and the synchronous limit assembly includes a limit swing arm and a synchronous connecting rod hinged to each other, one end of the limit swing arm is hinged to the outer wall of the driving rod, and the other end is hinged to one end of the synchronous connecting rod, and the other end of the synchronous connecting rod is hinged to the frame.

[0021] The present invention also provides a garbage incinerator, comprising a plurality of grate devices arranged in sequence along the garbage conveying direction, wherein the grate device is the grate device as described in any one of the above items.

[0022] Preferably, a slide plate is provided at the bottom of the movable grate, and a guide plate is provided on the frame and arranged under the slide plate. The bottom surface of the slide plate is tightly fitted and slidably adapted to the top surface of the guide plate, and the extension direction of the top surface of the guide plate is consistent with the reciprocating movement direction of the driving beam.

[0023] Compared with the above-mentioned background technology, the grate device provided by the present invention utilizes a driving cylinder to drive the axial reciprocating movement of the driving rod during its operation, thereby driving the driving beam to move back and forth, and then the driving beam drives each moving grate to synchronously realize the corresponding ejection and return actions, thereby realizing the step-by-step pushing and conveying of the garbage materials located on the top surfaces of each moving grate and the static grate. Since a driving cylinder with axial direct-drive reciprocating movement is used as the initial power source for the driving rod, driving beam and each moving grate, it is only necessary to ensure the movement space of the driving cylinder and the driving rod in the substantially horizontal direction. There is no need to arrange a larger vertical assembly space to ensure the rotation of the driving shaft and the driving arm as in the prior art. As a result, the vertical installation space required for the grate device in this scheme is significantly reduced. Since the action end of the driving cylinder is facing the inside of the grate device, the fixed installation space required for the main structure of the driving cylinder will not interfere with the space outside the grate device. Therefore, the horizontal layout space requirement of the grate device is not high, which makes the overall equipment structure of the grate device more compact and regular, and the corresponding component installation and layout space requirement is effectively reduced, thereby making the construction specifications of the corresponding garbage incinerator and other equipment supporting the factory buildings and other facilities can be optimized accordingly, and the corresponding supporting construction costs such as civil engineering and related facility maintenance costs can be reduced accordingly. During the operation of the equipment, as the driving cylinder drives the driving rod and the driving beam to reciprocate, due to the supporting and pushing stresses on the garbage material at the moving grate, these stresses will be fed back to the driving rod and its matching parts with the driving cylinder action end, thereby causing the connection between the driving cylinder action end and the driving rod to have left-right and up-down offsets. At this time, through the articulated rotation adaptation of the first hinge sleeve and the first hinge shaft, combined with the articulated rotation adaptation of the second hinge sleeve and the second hinge shaft, the matching connection between the driving cylinder action end and the driving rod can swing appropriately as the offset occurs, thereby realizing the action compensation for the left-right and up-down offsets generated during the transmission connection between the driving rod and the driving cylinder, effectively avoiding the damage and leakage of the driving cylinder sealing parts caused by extrusion and local stress concentration due to the existence of these swings, thereby effectively improving the structural sealing and fatigue strength of the driving cylinder and its supporting components, and the overall working condition adaptability and durability of the action mechanism of the grate device are correspondingly improved, thereby enabling the grate device to ensure continuous and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of a layout of a plurality of grate devices of a garbage incinerator provided in a specific embodiment of the present invention arranged in sequence;

[0026] Figure 2 for Figure 1 Schematic diagram of the assembly structure of the middle grate device;

[0027] Figure 3 for Figure 2 A partial enlarged view of the middle grate drive mechanism.

[0028] in:

[0029] 10-grate device; 101-frame; 102-moving grate; 103-static grate; 104-grate driving mechanism; 105-slide plate; 106-guide plate;

[0030] 11-base; 111-driving beam; 112-driving cylinder; 113-driving rod;

[0031] 121-first hinge sleeve; 122-first hinge shaft; 123-second hinge sleeve; 124-second hinge shaft; 125-transfer rod;

[0032] 13-sealing shell; 131-sealing chamber; 132-sealing sleeve;

[0033] 14-supporting plate; 141-adjusting plate; 142-adjusting spring; 143-supporting bracket; 144-adjusting bolt; 145-limiting boss;

[0034] 15-limiting swing arm; 151-synchronizing connecting rod. DETAILED DESCRIPTION

[0035] The core of the present invention is to provide a grate device, which has a relatively compact structure and requires a smaller space for assembly and arrangement of components, thereby enabling the construction and maintenance costs of related supporting facilities such as factory buildings to be reduced accordingly; the present invention also provides a garbage incinerator using the above-mentioned grate device.

[0036] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] Please refer to Figures 1 to 3 .

[0038] In a specific embodiment, the grate device provided by the present invention includes a frame 101 and a plurality of movable grates 102 and static grates 103 arranged at the top of the frame 101 and tilted from high to low along the garbage conveying direction, and also includes a grate driving mechanism 104 that can drive the movable grate 102 to be ejected and retracted reciprocally.

[0039] The grate driving mechanism 104 includes a base 11 fixed to the side of the frame 101 and a driving beam 111 linked to the moving grate 102. A driving cylinder 112 is provided on the base 11. The action end of the driving cylinder 112 is linked to the driving beam 111 through a driving rod 113. The angle between the extension direction of the action end of the driving cylinder 112 and the garbage conveying direction is an acute angle. This acute angle can ensure that the driving cylinder 112 can fully adapt to the conveying direction of the garbage material when driving the driving rod 113 to reciprocate, so that each moving grate 102 can extend forward along the garbage conveying direction to complete the pushing of the material, thereby ensuring the efficiency of each moving grate 102 in pushing the garbage, and ensuring the continuous and efficient treatment of the garbage.

[0040] During the specific operation of the equipment, the driving cylinder 112 is used to drive the axial reciprocating movement of the driving rod 113, thereby driving the driving beam 111 to move back and forth, and then the driving beam 111 drives each movable grate 102 to synchronously realize the corresponding ejection and return actions, thereby realizing the step-by-step pushing and conveying of the garbage materials located on the top surfaces of each movable grate 102 and the static grate 103. Since a driving cylinder 112 with axial direct-drive reciprocating movement is used as the initial power source for the driving rod 113, the driving beam 111 and each movable grate 102, it is only necessary to ensure the movement space of the driving cylinder 112 and the driving rod 113 in the substantially horizontal direction. There is no need to arrange a larger vertical assembly space to ensure the rotation of the driving shaft and the driving arm as in the prior art. As a result, the vertical installation space required for the grate device 10 in this scheme is significantly reduced. Since the action end of the driving cylinder 112 is facing the inside of the grate device 10, and the fixed installation space required for the main structure of the driving cylinder 112 will not interfere with the space outside the grate device 10, the horizontal layout space requirement of the grate device 10 is not high. Therefore, the overall equipment structure of the grate device 10 is more compact and regular, and the corresponding component installation and layout space requirements are effectively reduced, thereby making the construction specifications of the corresponding garbage incinerator and other equipment as a whole supporting the factory buildings and other facilities can be optimized accordingly, and the corresponding supporting construction costs such as civil engineering and related facility maintenance costs can be reduced accordingly.

[0041] Accordingly, due to the use of the axial reciprocating linkage drive mechanism formed by the driving cylinder 112, the driving rod 113 and the driving beam 111, the driving cylinder 112 can be arranged outside the furnace body of the garbage incinerator during the actual equipment installation, and the length of the driving rod 113 itself is sufficient to meet the movement amplitude requirements of the driving beam 111 to drive each moving grate 102 to extend and retract reciprocally, so as to meet the operation requirements of garbage pushing. In this way, the driving cylinder 112, which is the core driving device of the action mechanism, can be kept away from the high-temperature operation area inside the furnace body of the garbage incinerator, so that the service life of the driving cylinder 112 can be significantly extended, and the sealing effect of the relevant sealing components and the operating reliability of the supporting action parts such as the driving rod 113 can also be correspondingly improved.

[0042] In addition, the circumferential rotation and swinging action mechanism formed by the driving shaft and the driving arm in the prior art has large tangential stress and load operation during its action process, resulting in serious wear of its action parts. Under long-term operation, the sealing performance of the relevant adapter structure cannot be guaranteed. In this solution, the reciprocating linear action mechanism formed by the driving cylinder 112 and the driving rod 113 is used as the driving mechanism, so that most of the stress during the reciprocating action is concentrated in the linear motion direction of the driving rod 113, and the relevant load is greatly reduced, thereby effectively reducing the working wear of the action mechanism such as the driving rod 113, and improving the working condition tolerance and service life of each action component, thereby improving the working stability of the grate device 10 accordingly, and further reducing the operation and maintenance costs.

[0043] Specifically, the action end of the driving cylinder 112 is linked to the first hinge sleeve 121, and the first hinge shaft 122 is rotatably inserted in the first hinge sleeve 121. The driving rod 113 is linked to the second hinge sleeve 123 at one end facing the driving cylinder 112, and the second hinge shaft 124 is rotatably inserted in the second hinge sleeve 123. A transfer rod 125 is linked to the first hinge sleeve 121 and the second hinge sleeve 123; the axes of the first hinge shaft 122 and the second hinge shaft 124 are perpendicular to each other and to the axis of the transfer rod, and the axis of one of the first hinge shaft 122 and the second hinge shaft 124 extends in the horizontal direction. During the operation of the equipment, as the driving cylinder 112 drives the driving rod 113 and the driving beam 111 to reciprocate, due to the support and pushing stress of the garbage material at the moving grate 102, these stresses will be fed back to the driving rod 113 and the adaption of its matching parts with the driving cylinder 112 action end, thereby causing the left-right and up-down deviations at the junction of the driving cylinder 112 action end and the driving rod 113. At this time, through the articulated rotation adaptation of the first hinge sleeve 121 and the first hinge shaft 122, combined with the articulated rotation adaptation of the second hinge sleeve 123 and the second hinge shaft 124, the driving cylinder 113 can be made to rotate in a right and left direction. The adaptor connection between the action end 112 and the driving rod 113 swings moderately as the offset occurs, thereby realizing the action compensation for the left-right and up-down offsets generated during the transmission connection between the driving rod 113 and the driving cylinder 112, and effectively avoiding damage and leakage of the sealing components of the driving cylinder 112 due to extrusion and local stress concentration caused by these swings, thereby effectively improving the structural sealing and fatigue strength of the driving cylinder 112 and its supporting components, and the overall working condition adaptability and durability of the action mechanism of the grate device 10 are improved accordingly, thereby enabling the grate device 10 to ensure continuous and stable operation.

[0044] In a specific adaptation application, a sealing shell 13 with a sealing chamber 131 inside is also provided between the driving cylinder 112 and the driving rod 113, the axis of the first hinge shaft 122 extends in the horizontal direction, and the first hinge sleeve 121 is linked to the outer wall of the sealing shell 13; the second hinge sleeve 123 and the second hinge shaft 124 are both located in the sealing chamber 131, and the driving rod 113 extends into the sealing chamber 131 toward one end of the driving cylinder 112, and a sealing sleeve 132 adapted to the driving rod 113 is provided in the sealing chamber 131.

[0045] The sealing shell 13 can provide a reliable assembly connection foundation and appropriate structural support for the first hinge sleeve 121 and other matching connecting parts, so as to ensure the structural strength of the connection between the action end of the driving cylinder 112 and the driving rod 113. In combination with the spatial arrangement of the sealing chamber 131 and the assembly method of integrating the action parts such as the second hinge sleeve 123 and the second hinge shaft 124 in the sealing chamber 131, the sealing shell 13 can be used to provide complete structural protection for the linkage adapter between the action end of the driving cylinder 112 and the driving rod 113, thereby further avoiding the possible failure of the sealing structure and the occurrence of air leakage, ash leakage, etc. during the operation of the relevant action mechanism, thereby further ensuring the transmission reliability between the driving cylinder 112 and the driving rod 113, and the reciprocating action efficiency of each moving grate 102 and the overall operation stability of the grate device 10 are improved accordingly.

[0046] The sealing sleeve 132 can be reliably adapted to the driving rod 113, thereby providing stable structural sealing and appropriate structural protection for the linkage connection between the driving rod 113 and the actuating end of the driving cylinder 112, so as to further avoid the occurrence of sealing failures such as leakage of liquid, air or ash, thereby further ensuring the transmission efficiency and stability between the driving cylinder 112 and the driving rod 113, and ensuring the smooth and reliable operation of the grate device 10.

[0047] More specifically, a buffer support assembly capable of supporting the second hinge sleeve 123 is disposed inside the sealed cavity 131; the buffer support assembly includes a support plate 14 located below the second hinge sleeve 123, and also includes a support adjustment mechanism capable of driving the support plate 14 to reciprocate along an axial direction perpendicular to the drive rod 113 so that the support plate 14 is in full contact with the bottom of the second hinge sleeve 123. After the assembly is assembled in place, the support plate 14 can reliably contact the bottom of the second hinge sleeve 123, so as to achieve structural support for the transmission connection between the drive cylinder 112 and the drive rod 113 by supporting the second hinge sleeve 123, thereby ensuring the transmission efficiency and linkage reliability between the drive cylinder 112 and the drive rod 113.

[0048] As the equipment continues to operate, due to the influence of the deadweight of the driving cylinder 112 and the driving rod 113, the flexible wear may occur at the junction of the driving cylinder 112 action end and the driving rod 113 in a direction perpendicular to the axis of the driving rod 113. The continuous development of this wear will cause the sealing structure at the junction of the driving cylinder 112 and the driving rod 113 to fail, thereby causing air leakage and ash leakage, etc., which will adversely affect the transmission stability and linkage effect between the driving cylinder 112 and the driving rod 113. In view of this, the position of the supporting plate 14 can be adjusted through the supporting adjustment mechanism to ensure stable support for the second hinge shaft 124 and the junction of the driving cylinder 112 and the driving rod 113. That is, when the connection between the driving cylinder 112 and the driving rod 113 sinks and flexurally deforms due to the influence of its own weight, the supporting plate 14 is appropriately lifted by the supporting adjustment mechanism, that is, the supporting plate 14 is driven by the supporting adjustment mechanism to move appropriately in the direction of the second hinge sleeve 123, that is, upward, until the supporting plate 14 synchronously lifts the second hinge sleeve 123 to the adaptation path that satisfies the reciprocating motion of the driving cylinder 112 and the driving rod 113, and the supporting plate 14 and the second hinge sleeve 123 are always kept in stable contact and support. In this way, the subsequent linkage adaptation reliability and motion efficiency between the driving cylinder 112 and the driving rod 113 can be met, and the structural wear of the connection between the driving cylinder 112 and the driving rod 113 caused by its own weight can be effectively avoided, so that the service life of the main action parts such as the driving cylinder 112 and the driving rod 113 can be further extended, and the working condition tolerance of the entire grate device 10 is stronger, and the operation is more stable and reliable.

[0049] Furthermore, the support adjustment mechanism includes an adjustment plate 141 arranged below the support plate 14. The adjustment plate 141 is arranged parallel to the support plate 14 and has a clearance fit with the support plate 14. An adjustment spring 142 is embedded between the adjustment plate 141 and the support plate 14. The axis of the adjustment spring 142 is perpendicular to the main extension surface of the support plate 14.

[0050] The buffer support assembly also includes a support bracket 143 fixed on the side wall of the sealing shell 13, and the support plate 14 and the adjustment plate 141 are both located in the support bracket 143. The support adjustment mechanism also includes an adjustment bolt 144 threadedly inserted on the outer wall of the support bracket 143. The adjustment bolt 144 penetrates the outer wall of the support bracket 143 from the outside to the inside in a direction perpendicular to the main extension surface of the support plate 14, and the inner end of the adjustment bolt 144 abuts against the bottom wall of the adjustment plate 141.

[0051] When the position of the support plate 14 needs to be adjusted, the adjusting bolt 144 is screwed in the forward direction to gradually extend the adjusting bolt 144 into the sealing chamber 131, so that the adjusting plate 141 is moderately lifted by the abutment between the inner end of the adjusting bolt 144 and the adjusting plate 141. In this process, the adjusting spring 142 is used as a transmission component between the adjusting plate 141 and the support plate 14, thereby driving the support plate 14 to be synchronously and moderately lifted until the support plate 14 is lifted and moved to the target position to complete the lifting support of the second hinge sleeve 123 and the structural support for the connection between the driving cylinder 112 and the driving rod 113. During the position adjustment process of the above-mentioned components, the adjusting spring 142 can effectively absorb the structural impact between the adjusting plate 141 and the supporting plate 14, avoiding rigid contact between the two; and during the operation of the equipment, the adjusting spring 142 can cooperate with the supporting plate 14, thereby effectively alleviating the structural impact and vibration generally in the vertical direction that may exist during the reciprocating motion of the actuating end of the driving cylinder 112 and the driving rod 113, thereby further avoiding structural wear at the connection between the driving cylinder 112 and the driving rod 113, and ensuring the transmission efficiency and linkage reliability between the driving cylinder 112 and the driving rod 113.

[0052] Accordingly, when the position of the supporting plate 14 needs to be moved downward, it is only necessary to reversely screw the adjusting bolt 144 to gradually move the adjusting bolt 144 downward, thereby driving the adjusting plate 141 to move downward synchronously, thereby causing the supporting plate 14 to also move downward synchronously.

[0053] It is not difficult to understand that the number of the adjustment springs 142 is at least two, and each adjustment spring 142 is arranged in an array along the main extension surface of the support plate 14, so as to optimize the buffering and supporting effect of the connection between the driving cylinder 112 and the driving rod 113 at different positions of the support plate 14.

[0054] In addition, a limiting boss 145 is protruding on the inner wall of the inner end of the support bracket 143, which can abut against the top surface of the support plate 14. The support bracket 143 is a frame-type structural member, so that the support plate 14 and the adjustment plate 141 and other components can be integrated and arranged within the main structure of the support bracket 143. On this basis, the limiting boss 145 is arranged at the inner end of the support bracket 143, and the abutment and adaptation of the limiting boss 145 and the support plate 14 can be used to effectively limit the limit position of the support plate 14 when it moves toward the second hinge sleeve 123, so as to prevent the support plate 14 from falling out of the support bracket 143, thereby ensuring the assembly structure reliability and working stability of the supporting adjustment mechanism and other supporting components, so that the operation and operation of the grate device 10 are more stable and reliable.

[0055] In actual assembly applications, a buffer roller (not shown in the figure) may be provided on the support plate 14 to contact and cooperate with the second hinge sleeve 123. In this way, the contact adaptation mode between the support plate 14 and the second hinge sleeve 123 may be changed to rolling contact, thereby effectively avoiding the wear of the main structure of the support plate 14 and the second hinge sleeve 123 caused by long-term surface contact and reciprocating sliding friction, thereby further extending the service life of the support plate 14 and the second hinge sleeve 123, and making the supporting action mechanism of the grate device 10 more durable.

[0056] On the other hand, the middle part of the driving rod 113 is connected with a synchronous limiting assembly, which includes a mutually hinged limiting swing arm 15 and a synchronous connecting rod 151, one end of the limiting swing arm 15 is hinged to the outer wall of the driving rod 113, and the other end is hinged to one end of the synchronous connecting rod 151, and the other end of the synchronous connecting rod 151 is hinged to the frame 101. The multi-link hinge assembly formed by the limiting swing arm 15 and the synchronous connecting rod 151 in cooperation with the driving rod 113 can provide a synchronously linked structural limit for the driving rod 113 during the reciprocating motion of the driving rod 113, ensuring that the reciprocating motion of the driving rod 113 always moves along its axial direction or substantially along its axial direction, so as to ensure the lifting and retracting driving effect of the driving rod 113 on the driving beam 111 and each moving grate 102, and avoid loosening or dislocation of the driving rod 113 during the reciprocating motion, thereby optimizing the reciprocating motion tracking and transmission efficiency of the driving rod 113, and making the motion mechanism of the grate device 10 run more stably and efficiently.

[0057] In a specific embodiment, the waste incinerator provided by the present invention comprises a plurality of grate devices 10 arranged in sequence along the direction of waste conveying, and the grate device 10 is the grate device 10 described above. The structure of the grate device 10 of the waste incinerator is relatively compact, and the assembly and arrangement space required for the components thereof is relatively small, so that the construction and maintenance costs of the supporting facilities such as the plant related to the waste incinerator can be reduced accordingly.

[0058] It should be noted that in a specific layout application, multiple grate devices 10 may be arranged in a single waste incinerator to match the waste treatment needs of different workstations such as the drying section, combustion section and burnout section. Of course, the number of grate devices 10 arranged in the waste incinerator and their layout positions can be selected and adjusted accordingly according to the specific working conditions and process layout, and will not be repeated. In principle, the number of grate devices 10 and their layout positions can be any as long as they can meet the actual application needs of the waste incinerator.

[0059] In addition, a slide plate 105 is provided at the bottom of the movable grate 102, and a guide plate 106 is provided on the frame 101 and is arranged below the slide plate 105. The bottom surface of the slide plate 105 is tightly fitted and slidably adapted to the top surface of the guide plate 106, and the extension direction of the top surface of the guide plate 106 is consistent with the reciprocating direction of the driving beam 111. During the reciprocating ejection and retraction of the movable grate 102, the bottom surface of the slide plate 105 and the top surface of the guide plate 106 are always fitted and reciprocatingly slidably adapted, thereby providing reliable structural support and stable motion guidance for the reciprocating motion of the movable grate 102, avoiding structural loosening or dislocation during the reciprocating motion of the movable grate 102, ensuring the reciprocating motion tracking performance of each movable grate 102 and the garbage pushing efficiency, thereby making the working efficiency of the garbage incinerator higher and the operation process more stable and smooth.

[0060] There can be multiple slides 105, and the slides 105 are arranged in an array along the extension direction of the moving grate 102. Correspondingly, the number of guide plates 106 is also consistent with the slides 105 to ensure that the guide plates 106 can be arranged one-to-one under the slides 105 and slidably adapted, thereby meeting the movement guidance and structural support requirements at various positions of the moving grate 102.

[0061] In summary, it can be seen that during the operation of the grate device provided in the present invention, the driving cylinder is used to drive the axial reciprocating movement of the driving rod, thereby driving the reciprocating movement of the driving beam, and then the driving beam drives each moving grate to synchronously realize the corresponding ejection and return actions, thereby realizing the step-by-step pushing and conveying of the garbage materials located on the top surfaces of each moving grate and the static grate. Since a driving cylinder with axial direct-drive reciprocating movement is used as the initial power source for the driving rod, driving beam and each moving grate, it is only necessary to ensure the movement space of the driving cylinder and the driving rod in the substantially horizontal direction. There is no need to arrange a larger vertical assembly space to ensure the rotation of the driving shaft and the driving arm as in the prior art. As a result, the vertical installation space required for the grate device in this scheme is significantly reduced. Since the action end of the driving cylinder is facing the inside of the grate device, the fixed installation space required for the main structure of the driving cylinder will not interfere with the space outside the grate device. Therefore, the horizontal layout space requirement of the grate device is not high, which makes the overall equipment structure of the grate device more compact and regular, and the corresponding component installation and layout space requirement is effectively reduced, thereby making the construction specifications of the corresponding garbage incinerator and other equipment supporting the factory buildings and other facilities can be optimized accordingly, and the corresponding supporting construction costs such as civil engineering and related facility maintenance costs can be reduced accordingly.

[0062] The present invention also provides a waste incinerator, the structure of the grate device of which is relatively compact and the required assembly and arrangement space of the components is relatively small, thereby enabling the construction and maintenance costs of supporting facilities such as plant buildings related to the waste incinerator to be reduced accordingly.

[0063] The above is a detailed introduction to the grate device provided by the present invention and the garbage incinerator using the grate device. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A grate device, comprising a frame and a plurality of movable grates and static grates arranged on the top of the frame from high to low along the direction of garbage conveying, and also comprising a grate driving mechanism capable of driving the movable grate to reciprocately push out and retract, characterized in that: The grate driving mechanism comprises a base fixed to the side of the frame and a driving beam linked to the moving grate, a driving cylinder is arranged on the base, an action end of the driving cylinder is linked to the driving beam via a driving rod, the driving cylinder can drive the driving rod to move axially back and forth, thereby driving the driving beam to move back and forth, and the angle between the extending direction of the action end of the driving cylinder and the garbage conveying direction is an acute angle; The action end of the driving oil cylinder is linked to a first hinge sleeve, a first hinge shaft is rotatably inserted in the first hinge sleeve, one end of the driving rod facing the driving oil cylinder is linked to a second hinge sleeve, a second hinge shaft is rotatably inserted in the second hinge sleeve, and a transfer rod is linked to the first hinge sleeve and the second hinge sleeve; The axes of the first hinge shaft and the second hinge shaft are perpendicular to each other and to the axis of the transfer rod, and the axis of one of the first hinge shaft and the second hinge shaft extends in a horizontal direction; The first hinge sleeve is adapted to be hinged and rotated with the first hinge shaft, and the second hinge sleeve is adapted to be hinged and rotated with the second hinge shaft, so that the adaption connection between the action end of the driving cylinder and the driving rod can swing appropriately as the offset occurs, so as to realize the action compensation of the offset in the left-right and up-down directions generated during the transmission connection between the driving rod and the driving cylinder; A sealing shell having a sealing cavity inside is also provided between the driving oil cylinder and the driving rod, the axis of the first hinge shaft extends in a horizontal direction, and the first hinge sleeve is linked to the outer wall of the sealing shell; The second hinge sleeve and the second hinge shaft are both located in the sealing cavity, one end of the driving rod toward the driving oil cylinder extends into the sealing cavity, and a sealing sleeve adapted to the driving rod sleeve is arranged in the sealing cavity.

2. The grate device according to claim 1, characterized in that: A buffer supporting assembly capable of supporting the second hinge sleeve is arranged inside the sealing cavity; The buffer support assembly includes a support plate located below the second hinge sleeve, and also includes a support adjustment mechanism capable of driving the support plate to reciprocate along an axis perpendicular to the drive rod so that the support plate is in full contact with the bottom of the second hinge sleeve.

3. The grate device according to claim 2, characterized in that: The support adjustment mechanism comprises an adjustment plate arranged below the support plate, the adjustment plate is arranged parallel to the support plate and has clearance fit with the support plate, an adjustment spring is embedded between the adjustment plate and the support plate, and the axis of the adjustment spring is perpendicular to the main extension surface of the support plate; The buffer support assembly also includes a support bracket fixed on the side wall of the sealing shell, the support plate and the adjustment plate are both located in the support bracket, and the support adjustment mechanism also includes an adjustment bolt threadedly inserted on the outer wall of the support bracket, the adjustment bolt penetrates the outer wall of the support bracket from the outside to the inside along a direction perpendicular to the main extension surface of the support plate, and the inner end of the adjustment bolt abuts against the bottom wall of the adjustment plate.

4. The grate device according to claim 3, characterized in that: A limiting boss that can abut against the top surface of the supporting plate is protruded from the inner wall of the inner end portion of the supporting bracket.

5. The grate device according to claim 2, characterized in that: The supporting plate is provided with a buffer roller which contacts and cooperates with the second hinge sleeve.

6. The grate device according to claim 1, characterized in that: A synchronous limit assembly is connected to the middle part of the driving rod, and the synchronous limit assembly includes a limit swing arm and a synchronous connecting rod hinged to each other. One end of the limit swing arm is hinged to the outer wall of the driving rod, and the other end is hinged to one end of the synchronous connecting rod. The other end of the synchronous connecting rod is hinged to the frame.

7. A garbage incinerator, comprising a plurality of grate devices arranged in sequence along the direction of garbage conveying, characterized in that: The grate device is the grate device according to any one of claims 1 to 6.

8. The waste incinerator according to claim 7, characterized in that: The bottom of the movable grate is linked with a slide plate, and the frame is provided with a guide plate arranged under the slide plate. The bottom surface of the slide plate is tightly fitted and slidably adapted to the top surface of the guide plate, and the extension direction of the top surface of the guide plate is consistent with the reciprocating direction of the driving beam.

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