Transverse concave-convex dynamic adjustable combined grate bed

Abstract

The invention discloses a transverse concave-convex type dynamic adjustable combined fire grate bed which comprises a rack and an air blowing system arranged on the rack, and is characterized by further comprising an outer frame, an inner frame, an adjusting frame, a reverse push-pull rod, a forward push-pull rod, a reverse push fire grate group, a forward push fire grate group and a power device, the outer frame is arranged on the front portion of the machine frame and is in a right trapezoid shape, and the left side and the right side of the top of the outer frame are provided with symmetrical lower-layer slope beams inclining forwards. The inner frame is arranged on the front portion of the machine frame and located on the inner side of the outer frame, the inner frame is in a right trapezoid shape, and symmetrical partition plates inclining forwards are fixed to the left side and the right side of the top of the inner frame. The adjusting frame is located above the outer frame and comprises upper-layer slope beams (upper-layer slope fixing beams) on the left side and the right side, and the upper-layer slope beams are parallel to the lower-layer slope beams and supported by hydraulic cylinders arranged on the lower-layer slope beams at intervals. The grate bed can fully turn over, stir, tear and loosen garbage, and the garbage treatment efficiency is improved.

Description

Technical Field

[0001] The technical solution relates to the technical field of garbage disposal, in particular to a transversely concave-convex dynamically adjustable combined grate bed. Background Art

[0002] The most important component of the waste pyrolysis incinerator is the grate system. The grate system of the pyrolysis incinerator is mainly responsible for the transportation of garbage in the reaction chamber, while improving the mixing, crushing and stirring of garbage and air, and breaking it up through the height difference to improve the combustion efficiency.

[0003] There are many incineration structures used in existing waste incineration, such as reciprocating grate incinerators and pyrolysis gasification incinerators. At present, the reciprocating grate incinerator has the advantages of a long application history, mature technology, no need for pre-treatment of waste, low failure rate, long annual operation time, large processing capacity, no need to add auxiliary fuel during stable combustion, and less fly ash generation. It has extensive achievements both at home and abroad. The vast majority of the global waste incineration treatment industry adopts this technology, especially widely used in the field of waste incineration power generation in large and medium-sized cities in my country. The pyrolysis gasification incineration technology, with its advantages of low dioxin generation, low fly ash generation, and easy recovery of valuable metals, has become a domestic waste heat treatment technology that is being developed internationally and domestically.

[0004] For example: a tower-type multi-stage grate graded gasification combustion furnace (CN202310486997.5), specifically a tower-type multi-stage grate graded gasification combustion furnace, including a furnace body, a pyrolysis gasification chamber is arranged in the furnace body, a drying pyrolysis chamber is connected to the upper and lower sides of the pyrolysis gasification chamber, a gasification combustion chamber is connected to the lower and lower sides of the pyrolysis gasification chamber, a furnace control gate is arranged between the drying pyrolysis chamber and the gasification combustion chamber, a drying pyrolysis grate is arranged in the drying pyrolysis chamber, an ash discharge port is opened at the bottom of the gasification combustion chamber, a gasification combustion grate is arranged between the pyrolysis gasification chamber and the ash discharge port, and both the drying pyrolysis grate and the gasification combustion grate are push-type grates. However, in this patented technology, first of all, the grate structure and layout design and the motion control strategy are vague, making it difficult to achieve the stirring and mixing of the garbage layer and the breaking up of the agglomerated garbage.

[0005] For example: the circulating air supply system of the mechanical grate type garbage gasification incinerator (CN105465792B), the furnace beds 105 of the gasification furnace 103 and the ember furnace 104 are all mechanical grate type mobile furnace beds 105 driven independently in sections, and the grate of the mechanical grate type mobile furnace bed 105 is composed of movable grate plates and fixed grate plates overlapping each other, arranged alternately, and adjacent groups of movable grate plates are connected by pull rods and driven by a set of driving devices. The mechanical grate type mobile furnace bed 105 is used as a carrier for conveying garbage, and its implementation method can be various types of mobile furnace beds 105, such as chain plate type, drum type, multi-stage grate system, etc. However, in this patented technology, first of all, the grate structure is still in a fixed direction. Although each layer of the grate has a power mechanism, it is difficult to achieve the stirring and mixing of the garbage material layer and the breaking up of the garbage that has been agglomerated. Secondly, there are many mechanisms arranged in the drying layer and the pyrolysis layer, which are easy to be entangled and stuck.

[0006] For example: Mechanical grate type garbage single furnace gasification incineration system and treatment method thereof (CN105444183B).

[0007] Although the grate of the above structure can cut, stir and loosen the garbage during transportation, the grate combination of these combustion furnaces is single, either all the grates are pushed forward or all the grates are pushed backward. The grate group of each step layer cannot push the garbage alternately in combination, and no drop is formed when pushing the garbage, so that the garbage is piled up, resulting in poor ventilation, which in turn affects the combustion efficiency, and makes it easy for the bed material layer on both sides of the grate to burn through or smolder, affecting the reaction of the material in the furnace. Summary of the invention

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a transverse concave-convex dynamically adjustable combined grate bed, which has the technical effects of controllable garbage moving speed, improved combustion efficiency, and prevention of burn-through or smoldering of the grate bed material layer. The specific scheme is as follows.

[0009] The transverse concave-convex type dynamically adjustable combined grate bed comprises a frame and a blast system arranged on the frame, and is characterized in that it also comprises an outer frame (outer support frame), an inner frame (inner support frame), an adjustment frame (adjustment support frame), a reverse push rod, a forward push rod, a reverse push grate group, a forward push grate group and a power device;

[0010] The outer frame is arranged at the front of the frame, and is in the shape of a right-angled trapezoid, and the left and right sides of the top are symmetrical and forward-inclined lower slope beams (lower slope fixed beams);

[0011] The inner frame is arranged at the front of the frame and inside the outer frame, and is in the shape of a right-angled trapezoid, with symmetrical and forward-inclined partitions fixed on the left and right sides of the top;

[0012] The adjusting frame is located above the outer frame, and includes upper slope beams (upper slope fixed beams) on the left and right sides. The upper slope beams are parallel to the lower slope beams and are supported by hydraulic cylinders arranged at intervals on the lower slope beams.

[0013] The reverse push rod is in a rectangular frame shape, with lower pull beams (lower slope movable pull beams) on both sides, the lower pull beams are close to the inner side of the lower slope beams and are parallel to each other, the lower pull beams are supported by multiple lower rollers under the lower slope beams, and multiple convex beams are fixed on the reverse push rod at equal intervals;

[0014] The push-pull rod is in a rectangular frame shape, with upper pull beams (upper slope movable pull beams) on both sides, the upper pull beams are close to the inner side of the upper slope beams and are parallel to each other, the upper pull beams are supported by multiple upper rollers under the upper slope beams, and multiple concave beams are fixed on the push-pull rod at equal intervals;

[0015] The reverse grate group includes a reverse grate and a reverse grate, wherein the reverse grate includes a reverse fixed beam and a reverse movable beam alternately arranged, wherein both ends of the reverse fixed beam are fixed to the inner side of the partition, and the reverse movable beam is fixed to the middle protrusion of the convex beam, wherein the reverse grate includes a reverse fixed row and a reverse movable row, wherein one end of the reverse fixed row is clamped on the reverse fixed beam, and the other end is inverted on the adjacent reverse movable row, wherein one end of the reverse movable row is clamped on the reverse movable beam, and the other end is inverted on the adjacent reverse fixed row, and the reverse fixed row and the reverse movable row are alternately laid to form a tile-type laying structure;

[0016] There are two groups of forward-push grate groups, which are symmetrically distributed on the outer sides of the left and right partitions. The forward-push grate groups include forward-push beams and forward-push grates. The forward-push beams include forward-push fixed beams and forward-push movable beams that are alternately arranged. The forward-push fixed beams are fixed on the upper slope beams, and the forward-push movable beams are fixed on the left and right parts of the concave beams. The forward-push grate includes forward-push fixed rows and forward-push movable rows. One end of the forward-push fixed row is clamped on the forward-push fixed beam, and the other end is inverted on the adjacent forward-push movable row. One end of the forward-push movable row is clamped on the forward-push movable beam, and the other end is inverted on the adjacent forward-push fixed beam. The forward-push fixed row and the forward-push movable row are laid alternately to form a tile-type laying structure.

[0017] The structure of the air blowing system is that a funnel-shaped air chamber is provided below the outer frame, the lower part of the air chamber is connected to the air outlet of the fan through an air duct, and the air inlet of the fan is connected to the outside air through the air duct.

[0018] The power device has two groups respectively arranged at the ends of the forward push rod and the reverse push rod. The power device is driven by the pull rod. The output end of the pull rod is hinged to the end of the forward push rod or the reverse push rod. The pull rod is telescopic so that the forward push rod or the reverse push rod can perform reciprocating displacement parallel to the upper slope beam.

[0019] The forward push beam and the reverse push beam have the same structure, and comprise a beam body, and a grate mounting beam rod is arranged on the top of the beam body.

[0020] The reverse push grate and forward push grate structure include a rectangular grate body, a slot for matching the grate mounting beam is provided below one end of the grate body, a push head protruding upward is provided above the other end, and through holes are opened on the side of the grate body and the push head.

[0021] The top of the push head is two transversely arranged quadrangular prisms, which are divided into a front wedge surface and a rear wedge surface in the front and rear positions of the conveying direction, and the through hole is arranged on the rear wedge surface of the push head.

[0022] The inclination angles of the front wedge surface and the rear wedge surface of the push head on the same grate body are similar or different.

[0023] Diamond-shaped knives are fixed on the partition at intervals.

[0024] Compared with the prior art, this technical solution achieves the following technical effects:

[0025] 1. Through the cooperation of forward-pushing grate and reverse-pushing grate, horizontal tumbling (the tumbling from the back to the front is the x-axis) is added on the basis of the original vertical tumbling (the tumbling from the back to the front is the x-axis), which can fully flip, stir, tear and loosen the garbage, solve the problems of high water content, agglomeration and incomplete combustion of some garbage, and make the garbage in the agglomerate fully contact with the air, dry fully and burn completely, so as to improve the thermal reduction rate. At the same time, due to more complete flipping, stirring and tearing, more garbage can be processed in a unit time, which also improves efficiency;

[0026] 2. Through the kinetic energy control of the forward push rod and the reverse push rod, the speed difference between the middle and the two sides of the furnace bed can be accurately controlled to increase the tearing effect and reduce the side wall effect. Through the lifting and lowering of the hydraulic cylinder, the reverse push grate in the middle of the furnace bed and the forward push grate on both sides can be kept in a state of high in the middle and low on both sides, low in the middle and high on both sides, or horizontal in the middle and both sides (such as the attached Fig.16 The lifting of the two sides can also add radial tumbling (Z axis) on the basis of the original vertical tumbling (x axis) and horizontal tumbling (y axis), that is, the two sides tumble to the middle or the middle tumble to the two sides, further improving the stirring, tearing and loosening effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 3It is a left view structural schematic diagram of the present invention;

[0030] Figure 4 It is a schematic diagram of the local structure of the present invention Figure 1 ;

[0031] Figure 5 It is a schematic diagram of the local structure of the present invention Figure 2 ;

[0032] Figure 6 It is a schematic diagram of the local structure of the present invention Figure 3 ;

[0033] Figure 7 It is a schematic diagram of the local structure of the present invention Figure 4 ;

[0034] Figure 8 It is a schematic diagram of the local structure of the present invention Figure 5 ;

[0035] Fig. 9 It is a schematic diagram of the local structure of the present invention Figure 6 ;

[0036] Fig.10 It is a schematic diagram of the local structure of the present invention Figure 7 ;

[0037] Fig.11 It is a schematic diagram of the local structure of the present invention Figure 8 ;

[0038] Fig.12 It is a schematic diagram of the local structure of the present invention Fig. 9 ;

[0039] Fig.13 It is a schematic diagram of the local structure of the present invention Fig.10 ;

[0040] Fig.14 It is a schematic diagram of the local structure of the present invention Fig.11 ;

[0041] Fig.15 It is a schematic diagram of the local structure of the present invention Fig.12 ;

[0042] Fig.16 It is a schematic diagram of the relationship between the three states of the reverse push grate and the forward push grate of the present invention;

[0043] Fig.17 It is a schematic diagram of various arrangements used in the present invention.

[0044] Explanation of reference numerals: 1 frame, 2 outer frame (outer support frame), 2-1 lower slope beam (lower slope fixed beam), 2-2 lower roller, 3 inner frame (inner support frame), 4 adjustment frame (adjustment support frame), 4-1 upper slope beam (upper slope fixed beam), 4-2 upper roller, 5 partition, 5-1 diamond knife, 6 convex beam, 7 concave beam, 8 reverse grate, 8-1 reverse fixed grate, 8-2 reverse movable grate, 9 forward grate, 9-1 forward fixed grate, 9-2 forward movable grate, 9-1-1 grate body, 9-1-2 push head , 9-1-3 ventilation holes, 9-1-4 slots, 10 forward push rods, 10-1 upper pull beams (upper slope movable pull beams), 11 reverse push rods, 11-1 lower pull beams (lower slope movable pull beams), 12 reverse push beams, 12-1 reverse push fixed beams, 12-2 reverse push movable beams, 13 forward push beams, 13-1 forward push fixed beams, 13-2 forward push movable beams, 13-1-1 grate mounting beams, 14 blast system, 14-1 fan, 14-2 wind chamber, 14-3 air duct, 15 pull rod drive, 16 hydraulic cylinders, 17 buckle plates. DETAILED DESCRIPTION

[0045] Example 1, see attached Figure 1-17 , a transverse concave-convex type dynamically adjustable combined grate bed, comprising a frame 1 and a blast system 14 arranged on the frame 1, and also comprising an outer frame 2 (outer support frame), an inner frame 3 (inner support frame), an adjustment frame 4 (adjustment support frame), a reverse push rod 11, a forward push rod 10, a reverse push grate group, a forward push grate group and a power device;

[0046] As attached Figure 2 , 4 As shown, the outer frame 2 is arranged at the front of the frame 1, and the outer frame 2 is in the shape of a right-angled trapezoid, and the left and right sides of the top thereof are symmetrical and forward-inclined lower slope beams 2-1 (lower slope fixed beams);

[0047] As attached Figure 2 , 10 As shown in 11, the inner frame 3 is arranged at the front of the frame 1 and located inside the outer frame 2. The inner frame 3 is in the shape of a right-angled trapezoid, and symmetrical and forward-inclined partitions 5 are fixed on the left and right sides of the top;

[0048] As attached Figure 2 , 3 As shown in , 5, the adjustment frame 4 is located above the outer frame 2, and includes upper slope beams 4-1 (upper slope fixed beams) on the left and right sides. The upper slope beams 4-1 are parallel to the lower slope beams 2-1 and are supported by hydraulic cylinders 16 spaced apart on the lower slope beams 2-1;

[0049] As attached Figure 2 , 4As shown in , 6 and 7, the reverse push rod 11 is in a rectangular frame shape, with lower pull beams 11-1 (lower slope movable pull beams) on both sides thereof, the lower pull beams 11-1 are close to the inner side of the lower slope beam 2-1 and are parallel to each other, the lower pull beams 11-1 are supported by a plurality of lower rollers 2-2 below the lower slope beam 2-1, and a plurality of convex beams 6 are fixed on the reverse push rod 11 at equal intervals;

[0050] As attached Figure 2 , 5 As shown in , 6 and 7, the push-pull rod 10 is in a rectangular frame shape, and the upper pull beams 10-1 (upper slope movable pull beams) are on both sides thereof. The upper pull beams 10-1 are close to the inner side of the upper slope beam 4-1 and are parallel to each other. The upper pull beams 10-1 are supported by a plurality of upper rollers 4-2 below the upper slope beam 4-1. A plurality of concave beams 7 are fixed on the push-pull rod 10 at equal intervals.

[0051] As attached Figure 8 , 10 As shown in , 11, 12, 13, and 14, the reverse grate group includes a reverse beam 12 and a reverse grate 8, the reverse beam 12 includes a reverse fixed beam 12-1 and a reverse movable beam 12-2 that are alternately arranged, both ends of the reverse fixed beam 12-1 are fixed to the inner side of the partition 5, and the reverse movable beam 12-2 is fixed to the middle protrusion of the convex beam 6, the reverse grate 8 includes a reverse fixed row 8-1 and a reverse movable row 8-2, one end of the reverse fixed row 8-1 is clamped on the reverse fixed beam 12-1, and the other end is tilted on the adjacent reverse movable row 8-2, one end of the reverse movable row 8-2 is clamped on the reverse movable beam 12-2, and the other end is tilted on the adjacent reverse fixed row 8-1, and the reverse fixed row 8-1 and the reverse movable row 8-2 are alternately laid to form a tile-type laying structure;

[0052] As attached Figure 1 , 5 As shown in Figures 6, 9, 13 and 14, there are two groups of forward-push grate groups, which are symmetrically distributed on the outer sides of the left and right partitions 5. The forward-push grate groups include forward-push beams 13 and forward-push grates 9. The forward-push beams 13 include forward-push fixed beams 13-1 and forward-push movable beams 13-2 that are alternately arranged. The forward-push fixed beams 13-1 are fixed on the upper slope beam 4-1, and the forward-push movable beams 13-2 are fixed on the left and right parts of the concave beams 7. The forward-push grate 9 includes forward-push fixed rows 9-1 and forward-push movable rows 9-2. One end of the forward-push fixed row 9-1 is clamped on the forward-push fixed beam 13-1, and the other end is tilted on the adjacent forward-push movable row 9-2. One end of the forward-push movable row 9-2 is clamped on the forward-push movable beam 13-2, and the other end is tilted on the adjacent forward-push fixed beam 13-1. The forward-push fixed rows 9-1 and the forward-push movable rows 9-2 are alternately laid to form a tile-type laying structure.

[0053] As attached Figure 1-3As shown, the structure of the blowing system 14 is that a funnel-shaped air chamber 14-2 is provided below the outer frame 2, the bottom of the air chamber is connected to the air outlet of the fan 14-1 through the air duct 14-3, and the air inlet of the fan 14-1 is connected to the outside air through the air duct 14-3.

[0054] As attached Figure 1-3 As shown, the power device has two groups respectively arranged at the ends of the forward push rod 10 and the reverse push rod 11. The power device is a pull rod drive 15. The output end of the pull rod is hinged to the end of the forward push rod 10 or the reverse push rod 11. The pull rod is telescopic so that the forward push rod 10 or the reverse push rod 11 performs reciprocating displacement parallel to the upper slope beam 4-1.

[0055] As attached Fig.15 As shown, the forward push beam 13 and the reverse push beam 12 have the same structure, including a beam body, and a grate mounting beam rod 13-1-1 is provided on the top of the beam body.

[0056] As attached Fig.15 As shown, the reverse push grate 8 and the forward push grate 9 have the same structure, including a rectangular grate body 9-1-1, a slot 9-1-4 for matching the grate mounting beam 13-1-1 is provided below one end of the grate body 9-1-1, and a push head protruding upward is provided above the other end, and through holes are opened on the side of the grate body 9-1-1 and the push head.

[0057] The pusher head 9-1-2 group includes at least two pusher heads, each of which is in the shape of a cone, and a through hole is provided on the side of the pusher head.

[0058] The top of the pusher head 9-1-2 is two transversely arranged quadrangular prisms, which are divided into a front wedge surface and a rear wedge surface in the front and rear positions of the conveying direction, and the through hole is provided on the rear wedge surface of the pusher head. The inclination angles of the front wedge surface and the rear wedge surface of the pusher head on the same grate body are different.

[0059] Diamond-shaped knives 5-1 are fixed on the partition at intervals.

[0060] The front recorded in this solution refers to the direction in which the outer frame and the inner frame are lower, and the back recorded refers to the direction in which the outer frame and the inner frame are higher. The front and back directional words are only used to facilitate the expression of this technical solution and the understanding of the technical solution.

[0061] The working principle of this device is as follows.

[0062] In this embodiment, the power device has two groups, one group controls the forward push rod, and the other group controls the reverse push rod.

[0063] When the power device on the reverse push rod is started, the reverse push rod performs oblique forward and backward reciprocating motion, and the convex beam 6 on the reverse push rod 11 and the reverse push movable beam 12-2 on the convex beam follow the reciprocating motion, thereby driving the reverse push movable row 8-2 to also perform reciprocating motion. The reverse push fixed row 8-1 is buckled on the reverse push fixed beam, and the reverse push fixed beam is fixed on the partition, and the partition is fixed on the top of the inner frame. The inner frame does not move, so the reverse push fixed row does not move either. Since the reverse push fixed row 8-1 and the reverse push movable row 8-2 are laid crosswise with each other, they form a tile-type laying structure, that is, the top of the lower layer reverse push movable row 8-2 is buckled in the middle part (grate body) of the middle layer reverse push fixed row 8-1, and the top of the middle layer reverse push fixed row 8-1 is buckled in the middle part (grate body) of the upper layer reverse push movable row 8-2, and so on. When the reverse push rod drives the reverse push movable row 8-2 to move, the spaced reverse push movable row 8-2 will move back and forth between the front and rear adjacent reverse push fixed rows 8-1, and the push heads at its ends will also move back and forth between the front and rear adjacent push heads, thereby realizing the reverse pushing and tearing of the garbage above the grate.

[0064] When the power device on the push-pull rod is started, the push-pull rod performs oblique forward and backward reciprocating motion, and the concave beam 7 on the push-pull rod 10 and the push-pull movable beams on both sides of the concave beam follow the reciprocating motion, thereby driving the push-pull movable row 9-2 to also perform reciprocating motion. The push-pull fixed row 9-1 is fixed on the adjustment frame, and the adjustment frame is relatively fixed, so the push-pull fixed row 9-1 does not follow the motion. Since the push-pull fixed row 9-1 and the push-pull movable row 9-2 are laid crosswise with each other, they form a tile-type laying structure, that is, the end of the upper push-pull movable row 9-2 is buckled in the middle of the middle push-pull fixed row 9-1 (at the grate body), and the top of the middle push-pull fixed row 9-1 is buckled in the middle of the lower push-pull movable row 9-2 (at the grate body), and so on. When the forward push rod drives the forward push movable row 9-2 to move, the spaced forward push movable row 9-2 will move back and forth between the adjacent front and rear forward push fixed rows 9-1, and the push heads at its ends will also move back and forth between the adjacent front and rear push heads, thereby realizing the forward pushing and tearing of the garbage above the grate.

[0065] As attached Fig. 9 As shown, in this scheme, the forward push fixed beam 13-1 is fixed on the adjustment frame, the forward push movable beam 13-2 is fixed on the concave beam 7, the concave beam is fixed on the forward push rod 10, and the forward push rod is supported by the upper roller 4-2 under the adjustment frame 4, so the entire forward push system is actually set up on the adjustment frame. Therefore, when the multiple hydraulic cylinders under the adjustment frame are raised and lowered at the same time, the entire forward push system will rise and fall synchronously. It should be noted that the middle part of the concave beam should be kept at a distance from the bottom of the partition to avoid the middle part of the concave beam hitting the bottom of the partition when it rises. As shown in the attached figure Fig.16 As shown in the figure, the lifting and pushing system can make the pushing grates on both sides of the hearth higher than the reverse pushing grate in the middle (as shown in the attached figure). Figure 16-1) or parallel to the reverse grate (if attached Figure 16-2 ) or lower than the reverse grate (if attached Figure 16-3 ).

[0066] The direction in which the garbage is pushed is the direction in which the grate pusher is located. In this embodiment, the pusher of the middle grate faces upward and backward, so it is a reverse push grate, and the pushers of the two side grates face downward and forward, so it is a forward push grate. Technicians can change the grate arrangement direction as needed, such as forward in the middle and reverse on both sides, forward in the middle and reverse on both sides, or forward in the middle and reverse on both sides: (1) When both sides in the middle are forward, the garbage can pass through the grate quickly, increasing the processing volume, which is suitable for easily combustible garbage; (2) When both sides in the middle are reverse, the garbage will roll on the grate and stay for a longer time, which is suitable for garbage that needs to be burned for a long time; (3) When the middle is forward and both sides are reverse, the garbage will form clockwise and counterclockwise vortices on the left and right sides respectively, which can achieve better turning, stirring and tearing effects, and is suitable for garbage that is agglomerated and difficult to separate; (4) When the middle is reverse and both sides are forward, the garbage will form counterclockwise and clockwise vortices on the left and right sides respectively, which not only turns, stirs and tears more fully, but also stays for a longer time to burn. The length of residence time determines the processing efficiency, and the degree of tearing and stirring determines whether the garbage can be crushed and its internal structure can be fully burned. Technicians choose the appropriate layout according to the different types of garbage.

[0067] The hearth provided in this embodiment can be used alone or in series to form a hearth group. Fig.17 As shown in the figure, direction A is forward and direction B is reverse. The hearth combination can be set to forward forward forward, reverse reverse reverse, forward reverse reverse, etc. according to the needs. Adjacent hearths can be connected in plane (as shown in the attached figure). Figure 17-1 , 17-2), or it can be connected by drop (as shown in the attached Figure 17-3 , 17-4), a separation wall can be set at the intersection of the adjacent furnace beds to prevent excessive garbage from entering the wind chamber below through the gap in the gap and causing blockage.

[0068] The blower delivers air to the grate through the air duct and air chamber. The air is discharged from the gaps between the grates and the ventilation holes on the grate. The flow of air and the supplement of oxygen can enhance the combustion efficiency.

[0069] Compared with the prior art, this technical solution achieves the following technical effects:

[0070] 1. Through the cooperation of forward-pushing grate and reverse-pushing grate, horizontal tumbling (the tumbling from the back to the front is the x-axis) is added on the basis of the original vertical tumbling (the tumbling from the back to the front is the x-axis), which can fully flip, stir, tear and loosen the garbage, solve the problems of high water content, agglomeration and incomplete combustion of some garbage, and make the garbage in the agglomerate fully contact with the air, dry fully and burn completely, so as to improve the thermal reduction rate. At the same time, due to more complete flipping, stirring and tearing, more garbage can be processed in a unit time, which also improves efficiency;

[0071] 2. Through the kinetic energy control of the forward push rod and the reverse push rod, the speed difference between the middle and the two sides of the furnace bed can be accurately controlled to increase the tearing effect and reduce the side wall effect. Through the lifting and lowering of the hydraulic cylinder, the reverse push grate in the middle of the furnace bed and the forward push grate on both sides can be kept in a state of high in the middle and low on both sides, low in the middle and high on both sides, or horizontal in the middle and both sides (such as the attached Fig.16 The lifting of the two sides can also add radial tumbling (Z axis) on the basis of the original vertical tumbling (x axis) and horizontal tumbling (y axis), that is, the two sides tumble to the middle or the middle tumble to the two sides, further improving the stirring, tearing and loosening effects.

Claims

1. A horizontally concave-convex dynamically adjustable combined grate bed, comprising a frame (1) and a blast system arranged on the frame, characterized in that: It also includes an outer frame (2), an inner frame (3), an adjustment frame (4), a reverse push rod (11), a forward push rod (10), a reverse push grate group, a forward push grate group and a power device; The outer frame (2) is arranged at the front of the frame (1), and is in the shape of a right-angled trapezoid, with the left and right sides of the top being symmetrical and forward-inclined lower-layer slope beams (2-1); The inner frame (3) is arranged at the front of the frame and located inside the outer frame (2). The inner frame (3) is in the shape of a right-angled trapezoid, and symmetrical and forward-inclined partitions (5) are fixed on the left and right sides of the top of the inner frame (3). The adjustment frame is located above the outer frame (2), and includes upper slope beams (4-1) on the left and right sides, the upper slope beams (4-1) are parallel to the lower slope beams (2-1), and are supported by hydraulic cylinders arranged at intervals on the lower slope beams (2-1); The reverse push rod (11) is in the shape of a rectangular frame, with lower pull beams (11-1) on both sides thereof, the lower pull beams (11-1) being close to the inner side of the lower slope beam (2-1) and being parallel to each other, the lower pull beam (11-1) being supported by a plurality of lower rollers (2-2) below the lower slope beam (2-1), and a plurality of convex beams (6) being fixed at equal intervals on the reverse push rod (11); The push-pull rod (10) is in the shape of a rectangular frame, with upper pull beams (10-1) on both sides thereof. The upper pull beams (10-1) are close to the inner side of the upper slope beam (4-1) and are parallel to each other. The upper pull beam (10-1) is supported by a plurality of upper rollers (4-2) below the upper slope beam (4-1). A plurality of concave beams (7) are fixed on the push-pull rod (10) at equal intervals. The reverse push grate group comprises a reverse push beam (12) and a reverse push grate (8), wherein the reverse push beam (12) comprises reverse push fixed beams (12-1) and reverse push movable beams (12-2) which are alternately arranged, wherein both ends of the reverse push fixed beam (12-1) are fixed to the inner side of the partition (5), and the reverse push movable beam (12-2) is fixed to the middle protrusion of the convex beam (6), wherein the reverse push grate (8) comprises a reverse push fixed row (8-1) and a reverse push movable row (8-2), wherein one end of the reverse push fixed row (8-1) is clamped on the reverse push fixed beam (12-1), and the other end is tilted on the adjacent reverse push movable row (8-2), wherein one end of the reverse push movable row (8-2) is clamped on the reverse push movable beam (12-2), and the other end is tilted on the adjacent reverse push fixed row (8-1), and the reverse push fixed row (8-1) and the reverse push movable row (8-2) are alternately laid to form a tile-type laying structure; There are two groups of push-forward grate groups, which are symmetrically distributed on the outside of the left and right partitions (5). The push-forward grate groups include push-forward beams (13) and push-forward grate (9). The push-forward beams (13) include push-forward fixed beams (13-1) and push-forward movable beams (13-2) that are alternately arranged. The push-forward fixed beams (13-1) are fixed on the upper slope beams (4-1), and the push-forward movable beams (13-2) are fixed on the left and right parts of the concave beams (7). The push-forward grate (9) includes a push-forward fixed beam (13-1) and a push-forward movable beam (13-2). The invention comprises a forward-pushing fixed row (9-1) and a forward-pushing movable row (9-2), one end of the forward-pushing fixed row (9-1) is clamped on the forward-pushing fixed beam (13-1), and the other end is tilted on the adjacent forward-pushing movable row (9-2), one end of the forward-pushing movable row (9-2) is clamped on the forward-pushing movable beam (13-2), and the other end is tilted on the adjacent forward-pushing fixed beam (13-1), and the forward-pushing fixed row (9-1) and the forward-pushing movable row (9-2) are alternately laid to form a tile-type laying structure.

2. The horizontally concave-convex dynamically adjustable combined grate bed according to claim 1 is characterized in that: The structure of the air blowing system (14) is that a funnel-shaped air chamber (14-2) is provided below the outer frame (2); the bottom of the air chamber (14-2) is connected to the air outlet of the fan through an air duct (14-3); and the air inlet of the fan (14-1) is connected to the outside air through the air duct (14-3).

3. The horizontally concave-convex dynamically adjustable combined grate bed according to claim 1 is characterized in that: The power device has two groups respectively arranged at the ends of the forward push rod (10) and the reverse push rod (11).

4. The horizontally concave-convex dynamically adjustable combined grate bed according to claim 3 is characterized in that: The power device is a pull rod drive (15), the output end of the pull rod is hinged with the end of the forward push rod (10) or the reverse push rod (11), and the pull rod is telescopic so that the forward push rod or the reverse push rod performs reciprocating displacement parallel to the upper slope beam (4-1).

5. The horizontally concave-convex dynamically adjustable combined grate bed according to claim 1 is characterized in that: The forward push beam (13) and the reverse push beam (12) comprise a beam body, and a grate mounting beam rod (13-1-1) is arranged on the top of the beam body.

6. The horizontally concave-convex dynamically adjustable combined grate bed according to claim 1 is characterized in that: The structure of the reverse push grate (8) and the forward push grate (9) is as follows: it comprises a rectangular grate body (9-1-1), a slot for matching the grate mounting beam (13-1-1) is provided below one end of the grate body, a push head (9-1-2) protruding upward is provided above the other end, and through holes are provided on the side of the grate body and the push head.

7. The horizontally concave-convex dynamically adjustable combined grate bed according to claim 6 is characterized in that: The top of the pusher head (9-1-2) is composed of two transversely arranged quadrangular prisms, which are divided into a front wedge surface and a rear wedge surface in the front and rear positions in the conveying direction, and a through hole is arranged on the rear wedge surface of the pusher head.

8. The horizontally concave-convex dynamically adjustable combined grate bed according to claim 7 is characterized in that: The inclination angles of the front wedge surface and the rear wedge surface of the push head (9-1-2) on the same grate body (9-1-1) are similar or different.

9. The horizontally concave-convex dynamically adjustable combined grate bed according to claim 1 is characterized in that: Diamond-shaped knives (5-1) are fixed on the partition (5) at intervals.

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