Single-row type forward-pushing and backward-pushing alternately-arranged fire grate group

Abstract

The invention discloses a single-row type forward-pushing and reverse-pushing alternately-arranged fire grate group which comprises a forward-pushing fire grate group, a reverse-pushing fire grate group and two separating walls, the number of the separating walls is two, fire grate fixing lugs are arranged on the inner side and the outer side of each separating wall, a fire grate fixing beam I is erected on the fire grate fixing lugs between the inner sides of the two separating walls, and a fire grate fixing beam II is erected on the fire grate fixing lugs between the inner sides of the two separating walls. A fire grate fixing beam I is erected on the fire grate fixing lugs on the outer sides of the two separating walls, a fire grate fixing beam II is erected on the fire grate fixing lugs on the outer sides of the two separating walls, reverse pushing fire grate sets are transversely installed on the fire grate fixing beam I, a plurality of rows of reverse pushing fire grate sets are longitudinally arranged in the length direction of the separating walls, and a forward pushing fire grate set is transversely installed on the fire grate fixing beam II. A plurality of rows of forward-pushing fire grate groups are longitudinally arranged in the length direction of the separating wall and are of a tile type installation structure, the upper row of the forward-pushing fire grate groups is pressed on the lower row of the fixing columns, and the width of the backward-pushing fire grate groups is larger than that of the forward-pushing fire grate groups. The technical problem that in the background technology, a hearth material layer is prevented from being burnt through or smoldering is solved.

Description

Technical Field

[0001] The invention belongs to the field of garbage processing equipment, in particular to a single-row grate group with forward and reverse pushes alternately arranged. 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] At present, China's garbage has the characteristics of low calorific value and high moisture content. In order to ensure that the outlet temperature of the incinerator is stable at above 850℃, it is necessary to pile up enough garbage on the grate. Therefore, the grate is required to be able to fully flip, stir and loosen the entire garbage layer in all directions to shorten the drying time and improve the combustion efficiency. At the same time, due to the high moisture content and complex composition of China's domestic garbage, the garbage is easy to form agglomerates and lumps during drying and combustion. Therefore, the grate is also required to reduce the possibility of garbage agglomeration and agglomeration, so that the garbage in the agglomerate can fully contact with the primary air, dry fully, and burn completely to improve the thermal reduction rate.

[0004] At present, the commonly used grate systems are the forward push reciprocating grate system and the reverse push reciprocating grate system. By tilting multiple incineration sections and adopting a step-by-step arrangement, the garbage on the grate can rely on its own weight and the reciprocating motion of the grate unit to push forward and complete the combustion process. When the garbage falls from different incineration sections, it can roll over, thereby mixing the burned components and the incompletely burned components. However, when the amount of garbage incineration needs to be increased, the thickness of the garbage pile needs to be increased. At this time, the garbage will not be completely burned, and it can only provide more hot air required for combustion, while slowing down the speed of the grate. However, this also reduces the combustion efficiency to a certain extent, and cannot effectively solve the problem of low combustion efficiency.

[0005] Existing garbage incinerators such as the following invention patents: serrated reciprocating grate bars (CN201120509663.8), grate plates that can loosen garbage by themselves (CN200720124765.1) and previously designed serrated toothed grate bars that can stir, loosen and scatter garbage (CN 108332218 B) can cut, stir and loosen garbage during transportation. Although the problem of insufficient combustion of garbage can be solved, its grates are not installed alternately in forward and reverse directions, and can only be driven in forward or reverse directions. The moving speed difference of garbage materials cannot be adjusted. In addition, in order to achieve a ventilation effect when transporting garbage, the grate on both sides is prone to burn-through of the furnace bed material layer or smoldering. Summary of the invention

[0006] The present invention aims to provide a single-row grate group with alternating forward and reverse push arrangements, so as to solve the technical problem in the above-mentioned background technology that the furnace bed material layer is easily burned through or smoldering occurs during garbage combustion.

[0007] To achieve the above-mentioned purpose, the present invention provides a single-row grate group with alternating forward and reverse push arrangements, comprising a forward push grate group, a reverse push grate group, and an isolation wall, wherein the isolation wall is provided with two parallel beams, the reverse push grate group is installed between the inner sides of the two isolation walls through a reverse push beam, and the forward push grate group is respectively installed on the outer sides of the two isolation walls through forward push beams, the forward push grate group and the reverse push grate group are both arranged in a stepped manner along the length direction of the isolation wall, and the width of the reverse push grate group is greater than that of the forward push grate group.

[0008] Furthermore, the reverse push beam includes a grate bar fixing beam I and a convex beam, and grate bar fixing inner ears are provided on the inner sides of the two isolation walls at equal intervals. The grate bar fixing beam I is horizontally erected on the two grate bar fixing inner ears, and the convex beam is installed parallel to the grate bar fixing beam I, and the top of the convex beam is between the two isolation walls, and the bottom of the convex beam extends toward the outside of the isolation wall.

[0009] Furthermore, the push-forward beam includes a grate bar fixing beam II and a concave beam. Grate bar fixing outer ears are evenly spaced outside the two isolation walls. One end of the grate bar fixing beam II is mounted on the grate bar fixing outer ear. The concave beam is installed parallel to the grate bar fixing beam II. Both ends of the concave beam are outside the isolation wall, and the middle concave part of the concave beam spans under the isolation wall.

[0010] Furthermore, the forward-pushing grate group is divided into a fixed forward-pushing grate and a movable forward-pushing grate. The grate tail of the fixed forward-pushing grate is clamped on the grate bar fixed beam II, and the grate tail of the movable forward-pushing grate is clamped on the end of the concave beam, and the grate head is slidably overlapped on the upper plane of the fixed forward-pushing grate.

[0011] Furthermore, the reverse grate group is divided into a fixed reverse grate and a movable reverse grate. The grate tail of the fixed reverse grate is clamped on the grate bar fixed beam I, and the grate tail of the movable reverse grate is clamped on the top of the convex beam, and the grate head is slidably overlapped on the upper plane of the fixed reverse grate.

[0012] Furthermore, both the fixed push grate and the movable push grate are composed of a grate body and an integrally formed push head, the push head is located at the grate head of the grate body, the top of the push head is two transversely arranged quadrangular platforms, the quadrangular platforms are divided into a front wedge surface and a rear wedge surface in the front and rear positions of the conveying direction, and the inclination angles of the front wedge surface and the rear wedge surface are similar and different.

[0013] The push heads at adjacent positions of the fixed forward-pushing grate and the movable forward-pushing grate are arranged to be staggered in a transverse direction in a manner of one front and one rear, one high and one low.

[0014] Furthermore, both the fixed reverse push grate and the movable reverse push grate are composed of a grate body and an integrally formed push head, the push head is located at the grate head of the grate body, the top of the push head is two transversely arranged quadrangular platforms, the quadrangular platforms are divided into a front wedge surface and a rear wedge surface in the front and rear positions of the conveying direction, and the inclination angles of the front wedge surface and the rear wedge surface are similar and different.

[0015] The push heads at adjacent positions of the fixed reverse push grate and the movable reverse push grate are arranged to be staggered in a transverse direction in a manner of one front and one rear, one high and one low.

[0016] Furthermore, the grate body is hollow, with reinforcing ribs embedded inside, and a wear-resistant alloy material plate is provided below the grate head with a pusher head of the grate body, thereby improving the wear resistance of the grate body and extending the service life of the grate body.

[0017] Furthermore, ventilation holes communicating with the interior of the grate plate body are provided on the side surfaces of the grate plate body and the rear wedge surface of the push head.

[0018] Furthermore, a cooling channel is provided inside the isolation wall, a plurality of ventilation holes are provided on the surface of the isolation wall, and diamond-shaped knives are provided at equal intervals on the top surface of the isolation wall. The lower cross-section of the diamond-shaped knives is V-shaped, the interior of the diamond-shaped knives is hollow, and the diamond-shaped knives block the ventilation holes on the isolation wall.

[0019] Compared with the prior art, the grate group with alternating forward push and reverse push of the present invention has the following beneficial effects: we have redesigned the structure of the grate that could only be pushed in one direction before, so as to combine the reverse push grate and the forward push grate in a cross form, that is, the reverse push grate is designed in the middle and the forward push grate is designed on both sides, so that the garbage can be fully broken up when being pushed, avoiding the situation that the garbage will accumulate in the grate side seam when being transported in one direction, and the forward push on both sides will give the garbage a reverse push when the middle reverse push grate transports the garbage, so that under the cooperation of force and reaction force, the garbage can be smoothly transported into the furnace, and the side wall effect and boundary air leakage will not occur (the side wall effect refers to the situation that the gap between the filler and the tower wall is larger than the gap in the middle of the filler layer, so the liquid and solid are easy to move to the tower wall).

[0020] On the other hand, the alternating arrangement of the forward push grate group and the reverse push grate group, and the width of the reverse push grate group is greater than that of the forward push grate group, makes the stroke of the furnace bed shorter, thereby reducing the volume, floor space and cost of the furnace bed.

[0021] Furthermore, we have designed fixed grate bars and movable grate bars on each group of forward-pushing grate groups and reverse-pushing grate groups, and the fixed grate bars and movable grate bars are designed to be spaced side by side. This design also breaks the traditional grate design method. It is equivalent to that when garbage is piled up on the fixed grate bars, the movable grate bars grind the garbage back and forth, which can quickly break up the piled garbage and squeeze the garbage. The movable grate bars moving back and forth can stir and loosen the garbage in the longitudinal direction, as well as in the transverse direction. The stirring and loosening effect on the entire garbage material layer is very obvious.

[0022] The design of the concave beam and the convex beam, on the one hand, makes rational use of the space below the forward and reverse combined grates, ensuring that the supports of the movable grate plates of the forward grate body and the reverse grate body do not affect each other; and the movable grate bars of the forward grate group on both sides are supported by a concave beam, so that the movement of the same concave beam can drive the movable grate bodies of the forward grate groups on both sides to move synchronously, which is beneficial to energy saving.

[0023] The diamond-shaped blades are arranged so that the garbage falling on the isolation wall can fall onto the reverse grate bars or the forward grate bars, reducing the contact time between the garbage and the isolation wall. At the same time, the air blown out from the ventilation holes of the isolation wall can not only cool the hollow isolation wall, but also increase the burning effect of the garbage above the grate; in addition, the ventilation holes will not be blocked by ashes under the protection of the diamond-shaped blades; in addition, the multiple diamond-shaped blades are arranged longitudinally to make the isolation wall uneven in the longitudinal direction, thus forming a scattering effect on the garbage falling on the isolation wall.

[0024] The pusher heads are arranged in a staggered manner, one in front and one behind, one high and one low, so that the height of garbage in different parts of the incinerator material layer changes, aggravating the instability of the garbage material layer, and having a cutting and separation effect on the garbage. Even the size of clumped and agglomerated garbage will become smaller and the amount will be reduced, making it easier to break up and loosen the garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of a single grate;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of a single grate when viewed from above;

[0027] Figure 3 It is a schematic diagram of the main structure of a single grate;

[0028] Figure 4 It is a schematic diagram of the main structure of the grate group;

[0029] Figure 5 is a schematic diagram of the three-dimensional structure of the grate group;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the grate group when viewed from above;

[0031] Figure 7 It is a schematic diagram of the main structure of the combined modular furnace bed with forward and reverse alternating motions;

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the combined modular furnace bed with forward and reverse alternating motions from the positive axis side;

[0033] Fig. 9 It is a schematic diagram of the oblique-axis side stereoscopic structure of a modular furnace bed with forward and reverse alternating motions;

[0034] Fig.10 It is a schematic diagram of the assembly main structure of the concave beam, the outer support frame, the push-pull rod beam and the push-pull grate group;

[0035] Fig.11 It is a schematic diagram of the assembly three-dimensional structure of the concave beam, the outer support frame, the push-pull rod beam and the push-pull grate group;

[0036] Fig.12 It is a schematic diagram of the assembly three-dimensional structure of the concave beam, the outer support frame, the push-pull rod beam and the push-pull grate group;

[0037] Fig.13 It is a schematic diagram of the assembly main structure of the convex beam, the reverse push tie rod beam and the reverse push grate group;

[0038] Fig.14 It is a schematic diagram of the assembly three-dimensional structure of the convex beam, the reverse push tie rod beam and the reverse push grate group;

[0039] Fig.15 It is a schematic diagram of the assembly three-dimensional structure of the convex beam, the reverse push tie rod beam and the reverse push grate group;

[0040] Fig.16 It is a three-dimensional structural diagram of the overall assembly structure of the hearth;

[0041] Fig.17 It is a schematic diagram of the explosion structure of the integral support frame of the furnace bed.

[0042] Fig.18 It is a schematic diagram of the three-dimensional structure of convex beams, concave beams, forward push tie rod beams, and reverse push tie rod beams assembled on the inner support frame and the outer support frame;

[0043] Fig.19 Side structural diagram of the fixed reverse grate and movable reverse grate assembly.

[0044] Explanation of the markings in the figure: 1. grate; 11. push head; 110. rear wedge surface; 111. front wedge surface; 112. reinforcing rib; 113. ventilation hole; 114. wear-resistant alloy material plate; 12. slot; 13. grate body; 2. push grate group; 20. fixed push grate; 21. movable push grate; 3. push grate group; 30. fixed push grate; 31. movable push grate; 4. isolation wall; 41. grate bar fixing outer ear; 42. grate bar fixing beam I; 43. Grate bar fixing beam II; 44. Diamond knife; 45. Grate bar fixing inner ear; 46. Ventilation hole; 5. Inner support frame; 6. Outer support frame; 61. Upper slope beam; 62. Lower slope beam; 63. Upper roller; 64. Lower roller; 7. Concave beam; 8. Convex beam; 9. Reverse push rod beam; 10. Forward push rod beam; 14. Rod driver; 15. Fixed plate; 16. Initial fixed inner plate; 17. Initial fixed outer plate; 18. Multi-degree-of-freedom hinged connecting rod. DETAILED DESCRIPTION

[0045] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0046] like Figure 1 — Figure 6 A grate group with forward push and reverse push alternately arranged, comprising a forward push grate group 2, a reverse push grate group 3, and a partition wall 4, wherein the partition wall 4 is provided with two parallel lines, a cooling channel is provided inside the partition wall 4, a plurality of vents connected to the cooling channel are provided on the surface of the partition wall, and diamond knives 44 are provided at equal intervals on the top surface of the partition wall 4, the lower cross section of the diamond knives 44 is V-shaped, the interior of the diamond knives is hollow, and the diamond knives 44 block the vents 46 on the partition wall ( Figure 5 middle).

[0047] The reverse grate group 3 is installed between the inner sides of the two isolation walls through reverse beams, and the forward grate group 2 is respectively installed on the outer sides of the two isolation walls through forward beams, which is equivalent to the left and right outer sides of the isolation walls. Many rows of forward beams are built along the inclination direction of the isolation walls, and the forward grate group 2 is installed on the forward beams. The forward grate group 2 and the reverse grate 3 are arranged in a stepped manner along the length direction of the isolation wall 4, that is, the forward grate group 2 and the reverse grate 3 are built up like a staircase structure, and the width of the reverse grate group 3 is greater than the width of the forward grate group 2.

[0048] The specific structures of the reverse push beam and the forward push beam are as follows:

[0049] like Figure 6 , Fig.15As shown, the reverse push beam includes a grate bar fixing beam Ⅰ42 and a convex beam 8. Grate bar fixing inner ears 45 are evenly spaced on the inner sides of the two isolation walls 4. The grate bar fixing beam Ⅰ42 is horizontally mounted on the two grate bar fixing inner ears 45. The convex beam 8 is installed parallel to the grate bar fixing beam Ⅰ42, and the top of the convex beam 8 is between the two isolation walls 4. The bottom of the convex beam 8 extends toward the outside of the isolation wall 4 and is built on the reverse push rod beam 9 after extension.

[0050] The reverse grate group 3 is divided into a fixed reverse grate 30 and a movable reverse grate 31. The grate tail of the fixed reverse grate 30 is clamped on the grate bar fixed beam Ⅰ42, and the grate tail of the movable reverse grate 31 is clamped on the top of the convex beam 8, and the grate head is slidably overlapped on the upper plane of the fixed reverse grate 30. It is equivalent to that when the convex beam is movable, it will move with the movable reverse grate 31, so that the movable reverse grate 31 will rub back and forth on the upper plane of the fixed reverse grate 30.

[0051] like Figure 6 , Fig.11 , Fig.12 As shown, the push-forward beam includes a grate bar fixing beam Ⅱ43 and a concave beam 7. Grate bar fixing outer ears 41 are arranged at equal intervals on the outside of the two isolation walls 4. One end of the grate bar fixing beam Ⅱ43 is mounted on the grate bar fixing outer ear 41. The concave beam 7 is installed parallel to the grate bar fixing beam Ⅱ43. Both ends of the concave beam 7 are located on the outside of the isolation wall 4 and are built on the push-forward pull rod beam 10. The middle concave portion of the concave beam 7 spans across the bottom of the isolation wall 4. The middle concave portion of the concave beam avoids the convex beam, and the two are designed to be staggered.

[0052] The push grate component 2 is composed of a fixed push grate 20 and a movable push grate 21. The grate tail of the fixed push grate 20 is clamped on the grate bar fixing beam II. The two ends of the grate bar fixing beam II are respectively fixed between the outer side of the isolation wall and the upper slope beam 61 ( Figure 8 As shown in the figure, the tail of the movable forward-pushing grate 21 is clamped on the end of the concave beam 21, and the head of the grate is slidably overlapped on the upper plane of the fixed forward-pushing grate 20. Specifically, the clamping groove 12 of the grate 1 is clamped on the end of the concave beam 21, which is equivalent to the concave beam being movable. When the concave beam drives the movable forward-pushing grate 21 to move, it rubs back and forth along the upper plane of the fixed forward-pushing grate 20.

[0053] In the above, the structure in which the grate fixing beam Ⅰ42, the grate fixing beam Ⅱ43, the concave beam 7, the convex beam 8 and the grate bar are connected together is the prior art, which is not described in detail in this embodiment. The specific announcement is CN 100507364C patent. Fig.11 .

[0054] like Figure 1 , Fig.19 As shown, the fixed reverse grate and the movable reverse grate, the fixed forward grate and the movable forward grate are a single grate 1, and the grate is composed of a grate plate body 13 and an integrally formed pusher head 11, the pusher head 11 is located at the grate head of the grate plate body 13, and a slot 12 is provided at the grate tail of the grate plate body 13, and the top of the pusher head 11 is two transversely arranged quadrangular platforms, which are divided into a front wedge surface 111 and a rear wedge surface 110 in the front and rear positions of the conveying direction, and the inclination angles of the front wedge surface 111 and the rear wedge surface 110 are different, and the pushers at adjacent positions of the fixed reverse grate and the movable reverse grate, the fixed forward grate and the movable forward grate are all arranged to be staggered in the transverse direction in a front-to-back, high-to-low manner, as shown in FIG. Figure 5 As shown, the movable reverse grate in the same horizontal row or the fixed reverse grate in the same horizontal row, the four-sided platforms with wedge surfaces of different inclination angles are arranged at intervals in the horizontal position, and the grate bars on the forward grate group are arranged in the same way.

[0055] In this embodiment, two groups of fixed forward-pushing grates are arranged on each grate fixing beam Ⅱ43, two groups on the outer side of the isolation wall, a total of four groups, when the grate group moves, the moving direction of the forward-pushing grate group is downward along the isolation wall, then the push head is facing downward, the two groups of fixed forward-pushing grates and movable forward-pushing grates arranged side by side, their front wedge surfaces 111 and rear wedge surfaces 110 with different inclination angles are staggered, when one group of wedge surfaces with a larger inclination angle faces downward, the other group of wedge surfaces with a larger push head angle facing upward, the fixed number and fixed direction of the movable forward-pushing grates on the concave beam are the same as those of the fixed forward-pushing grates. Similarly, 6 groups of fixed reverse grates are arranged on the grate bar fixing beam Ⅱ43. When the grate group moves, the moving direction of the reverse grate group is upward along the isolation wall, so the pusher head is facing upward, and the pusher heads on the adjacent grate plate bodies 13 are also staggered in a front-and-back, high-and-low manner. The fixed number and fixed direction of the movable reverse-push laying bars on the convex beam are the same as those of the fixed reverse grate.

[0056] The grate body 13 is hollow, with reinforcing ribs embedded inside. The reinforcing ribs 112 are cross-shaped. A wear-resistant alloy material plate 114 is provided at the bottom of the grate head of the grate body with the head pusher to increase the strength of the grate bar when it is pulled back and forth. Figure 1 , we have provided ventilation holes 113 on the rear wedge surface 110, and also on the sides of the grate body 13. In addition to the above improvements, we have also designed the lower end of the grate bar's row part into a slot structure 12 (such as Figure 1 As shown), the slot structure 2 is clamped on the reverse push beam and the forward push beam mentioned above.

[0057] like Figure 7—16 shows a modular furnace bed with forward and reverse alternating motions. The modular furnace bed further includes an inner support frame 5, an outer support frame 6, a concave beam 7 and a convex beam 8, as well as a reverse push rod beam 9 and a forward push rod beam 10 on the basis of the above structure. The specific assembly structure is as follows:

[0058] The inner support frame 5 and the outer support frame 6 are supported along the slope of the isolation wall 7, the top of the inner support frame 5 is against the two isolation walls 4, and the top of the outer support frame 6 is against the bottom of the grate bar fixing beam Ⅱ43 of the forward push grate group outside the two isolation walls 4, and the left and right vertical surfaces of the outer support frame 6 are provided with an upper slope beam 61 and a lower slope beam 62 parallel to each other, specifically, the upper slope beam 61 is lower than the bottom of the grate bar fixing beam Ⅱ43, and the lower slope beam 62 is used to hang the reverse push rod beam 9, the upper slope beam 61 is vertically installed with an upper roller 63 toward the inner side of the reverse push grate group, and the lower slope beam 62 is vertically installed with a lower roller 64 toward the inner side of the reverse push grate group, and the upper and lower rollers are staggered. The reverse push rod beam 9 is placed on the lower roller 64, and the forward push rod beam 10 is placed on the upper roller 63. Fig. 9 , Fig.17 shown.

[0059] like Fig.14 , Fig.15 , Fig.18 As shown, the top of the convex beam 8 is detachably mounted on the bottom of the reverse grate group 3, and the left and right ends of the convex beam 8 are mounted on the left and right beams of the reverse pull rod beam 9, as shown in FIG. Fig.11 , Fig.12 As shown, the left and right ends of the concave beam 7 are detachably installed between the left and right beams of the push-pull rod beam 10 and the push-pull grate group 2 outside the partition wall 4. In addition, the structure of the convex beam 7 and the concave beam 8 contacting the grate bar is the same as the structure of the grate bar fixing beam I 42 and the grate bar fixing beam II 43.

[0060] like Fig.10 , Fig.13 As shown in the figure, the left and right beams of the reverse push rod beam 9 and the left and right beams of the forward push rod beam 10 are both in a staircase structure, and the left and right ends of the concave beam 7 and the convex beam 8 are both built and fixed on the horizontal part of the staircase structure, and the inclined part of the staircase structure has the same inclination angle as the partition wall. The partition wall is tilted, and its inclination angle is 25°. The inner and outer support frames of the staircase structure cause the forward push grate group 2 and the reverse push grate group 3 installed thereon to be installed like a tile-type structure, one level covering another, and are laid from bottom to top along the partition wall, and the concave beams and the convex beams are staggered in the conveying direction, that is, Figure 7 , Figure 8 , Fig. 9 shown.

[0061] In order to fix the fixed grate bars in the lowest horizontal row of the hearth, a starting fixed inner plate 16 is provided at the bottom of the inner sides of the two isolation walls. The reverse grate pressure plate 16 presses the tail of the reverse grate group in the lowest row to prevent the reverse grate group from tilting up. A starting fixed outer plate 17 is provided at the bottom of the outer sides of the two isolation walls, and the forward grate group in the lowest row is fixed on the starting fixed outer plate 17.

[0062] The upper ends of the reverse push rod beam 9 and the forward push rod beam 10 are respectively provided with power devices, and a fixed plate 15 fixed to the inner support frame and the outer support frame is provided at the inclined uppermost end of the two isolation walls. The power device is composed of a pull rod driver 14 and a multi-degree-of-freedom hinged connecting rod 18. The upper ends of the multi-degree-of-freedom hinged connecting rod 18 are respectively rotatably connected to the upper ends of the reverse push rod beam 9 and the forward push rod beam 10, and the lower end of the multi-degree-of-freedom hinged connecting rod 18 is installed on the fixed plate 15. The driving end of the pull rod driver 14 is hinged at the middle part of the multi-degree-of-freedom hinged connecting rod 18, which is used to drive the reverse push rod beam 9 and the forward push rod beam 10 to move along the inclined lower slope beam 62 and upper slope beam 61.

[0063] The overall working principle of the hearth is as follows:

[0064] like Fig. 9 As shown, the reverse push rod beam 9 and the forward push rod beam 10 are in a rectangular frame structure, the left and right beams of the reverse push rod beam 9 are cooperatively installed on the lower roller 64, and the left and right beams of the forward push rod beam 10 are cooperatively installed on the upper roller 63. The grate bar fixed beam Ⅰ42 and the grate bar fixed beam Ⅱ43 are not driven by power. The upper ends of the reverse push rod beam 9 and the forward push rod beam 10 are respectively provided with a rod driver 14, and three or four groups of hydraulic rod drivers 14 are installed on the upper side of the fixed plate 15. The rod drivers 14 drive the reverse push rod beam 9 and the forward push rod beam 10 respectively. The reverse push rod beam 9 and the forward push rod beam 10 are divided into two layers parallel to each other. When pulling, due to the support of the upper and lower rollers (63, 64), they can move back and forth along the length direction of the isolation / 4, so the movable forward push grate 21 and the movable reverse push grate 31 connected with the convex beam 8 and the concave beam 7 can swing back and forth.

[0065] That is Fig.16 , Fig.17As shown, it is equivalent to the pull rod driver 14 driving the reverse push rod beam 9 and the forward push rod beam 10 to move respectively, and the speed can be adjusted respectively. When the forward push rod beam 9 moves, it pulls the concave beam 7 to move, and drives the movable grate of the forward push grate group 2 outside the partition wall 4 to move. Since the grate fixing beam II 43 pulls the fixed forward push grate 20, the entire fixed forward push grate 20 of the grate bed is inactive, and the spaced forward push movable grate 20 is driven by the concave beam 7 to move back and forth, thereby cooperating with the fixed forward push grate 20 to break up and stir the garbage. Similarly, the movable reverse push grate 31 and the fixed reverse push grate 30 on the reverse push grate group 3 are also assembled in the same way. The movable and fixed reverse push grate bars assembled on the convex beam 8 are rubbed back and forth, thereby achieving the purpose of stirring the garbage. This design structure is also different from the existing technology.

[0066] Look again Fig.16 In order to ensure that the entire furnace bed can be replaced and moved as a whole, we fix the inner support frame and the outer support frame together on the base frame, and a moving wheel is fixed at the bottom of the base frame.

[0067] The above is a detailed introduction to a modular furnace bed with forward and reverse alternating motion provided by the present application. The description of the specific embodiment is only used to help understand the method and core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A single-row grate group with alternating forward and reverse push arrangements, comprising a forward push grate group (2) and a reverse push grate group (3), Features: It also includes an isolation wall (4), wherein the isolation wall (4) is provided with two mutually parallel ones, the reverse push grate group (3) is installed between the inner sides of the two isolation walls (4) through the reverse push beam, and the forward push grate group (2) is installed on the outer sides of the two isolation walls (4) through the forward push beam, respectively, the forward push grate group (2) and the reverse push grate group (3) are both arranged in a stepped manner along the length direction of the isolation wall (4), and the width of the reverse push grate group (3) is greater than the width of the forward push grate group (2).

2. The single-row grate group with alternating forward and reverse push arrangements according to claim 1 is characterized in that: The reverse push beam comprises a grate fixing beam I (42) and a convex beam (8). Grate fixing inner ears (45) are arranged at equal intervals on the inner sides of the two isolation walls (4). The grate fixing beam I (42) is horizontally mounted on the two grate fixing inner ears (45). The convex beam (8) is installed parallel to the grate fixing beam I (42). The top of the convex beam (8) is located between the two isolation walls (4), and the bottom of the convex beam (8) extends toward the outer side of the isolation wall.

3. The single-row grate group with alternating forward and reverse push arrangements according to claim 1 is characterized in that: The push-forward beam comprises a grate fixing beam II (43) and a concave beam (7). Grate fixing outer ears (41) are arranged at equal intervals on the outside of the two isolation walls. One end of the grate fixing beam II (43) is mounted on the grate fixing outer ear (41). The concave beam (7) is installed parallel to the grate fixing beam II (43). Both ends of the concave beam (7) are located outside the isolation wall (4). The middle concave portion of the concave beam (7) spans below the isolation wall.

4. The single-row grate group with alternating forward and reverse push arrangements according to claim 3 is characterized in that: The push-forward grate group (2) is divided into a fixed push-forward grate (20) and a movable push-forward grate (21). The grate tail of the fixed push-forward grate (20) is clamped on the grate bar fixed beam II (43), and the grate tail of the movable push-forward grate (21) is clamped on the end of the concave beam (7), and the grate head is slidably overlapped on the upper plane of the fixed push-forward grate (20).

5. The single-row grate group with alternating forward and reverse push arrangements according to claim 2 is characterized in that: The reverse grate group (3) is divided into a fixed reverse grate (30) and a movable reverse grate (31), wherein the grate tail of the fixed reverse grate is clamped on the grate bar fixed beam I (42), and the grate tail of the movable reverse grate (31) is clamped on the top of the convex beam (8), and the grate head is slidably overlapped on the upper plane of the fixed reverse grate (30).

6. The single-row grate group with alternating forward and reverse push arrangements according to claim 4 is characterized in that: The fixed push grate (20) and the movable push grate (21) are both composed of a grate plate body (13) and an integrally formed push head (11). The push head (11) is located at the grate head of the grate plate body (13). The top of the push head (11) is two transversely arranged quadrangular prisms. The quadrangular prisms are divided into a front wedge surface (110) and a rear wedge surface (111) in the front and rear positions of the conveying direction. The inclination angles of the front wedge surface (110) and the rear wedge surface (111) are different. The push heads (11) at adjacent positions of the fixed forward-pushing grate (20) and the movable forward-pushing grate (21) are arranged to be staggered in a transverse direction in a manner of one front and one rear, one high and one low.

7. The single-row grate group with alternating forward and reverse push arrangements according to claim 5 is characterized in that: The fixed reverse push grate (30) and the movable reverse push grate (31) are both composed of a grate plate body (13) and an integrally formed push head (11), the push head (11) being located at the grate head of the grate plate body (13), the top of the push head (11) being two transversely arranged quadrangular prisms, the quadrangular prisms being divided into a front wedge surface (110) and a rear wedge surface (111) in the front and rear positions in the conveying direction, the inclination angles of the front wedge surface and the rear wedge surface being similar and different, The push heads at adjacent positions of the fixed reverse push grate (30) and the movable reverse push grate (31) are arranged to be staggered in a transverse direction in a manner of one front and one rear, one high and one low.

8. The single-row grate group with alternating forward and reverse push arrangements according to claim 6 or 7, characterized in that: The grate plate body (13) is hollow and has reinforcing ribs (112) embedded inside. A wear-resistant alloy material plate (114) is provided below the grate head of the pusher head (11).

9. The single-row grate group with alternating forward and reverse push arrangements according to claim 8, characterized in that: Ventilation holes (113) communicating with the interior of the grate plate body are provided on the side surface of the grate plate body (13) and the rear wedge surface of the push head (11).

10. The single-row grate group with alternating forward and reverse push arrangements according to claim 1, characterized in that: A cooling channel is provided inside the isolation wall (4), a plurality of ventilation holes (46) are provided on the surface of the isolation wall, and diamond-shaped knives are provided at equal intervals on the top surface of the isolation wall (4), the lower cross-section of the diamond-shaped knives is V-shaped, the interior of the diamond-shaped knives is hollow, and the diamond-shaped knives cover the ventilation holes (46) on the isolation wall (4).

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