Dynamic flow guide type air-cooled fire grate segment and incinerator

Abstract

The dynamic flow guide type air-cooled fire grate segment comprises a fire grate segment body, the upper side of the fire grate segment body is a garbage bearing side, the lower side of the fire grate segment body is provided with an air guide side plate, the first end of the fire grate segment body is provided with a clamping jaw used for being supported on a fire grate beam, and the second end of the fire grate segment body is provided with an air guide side plate; an air outlet hole is formed in the second end of the fire grate segment body; the flow guide device is arranged on the lower side of the fire grate segment body, a main air inlet channel is defined by the flow guide device, the main air inlet channel is an inclined channel, and the main air inlet channel is gradually close to the second end of the fire grate segment body in the direction from the lower side of the fire grate segment body to the upper side of the fire grate segment body. According to the dynamic flow guide type air-cooled fire grate segment, due to the fact that the flow guide device is arranged, primary air can be close to the garbage bearing side of the fire grate segment body, and the cooling effect on the high-temperature combustion area on the upper portion of the fire grate segment body is improved.

Description

Technical Field

[0001] The present application relates to the technical field of incinerators, and more specifically, to a dynamic diversion type air-cooled grate bar and an incinerator. Background Art

[0002] With the continuous increase of domestic waste, at present, mechanical grate incinerators have gradually occupied the dominant position in domestic waste incineration due to their strong waste adaptability and reliable operation.

[0003] The mechanical grate incinerator mainly includes a drying section, a combustion section, and an afterburning section along the waste conveying direction. The grate bars (including movable grate bars and fixed grate bars) of the incinerator are a key component in the incinerator and play an important role in the waste incineration process. The grate bars form a bearing platform that can hold the waste and make it move orderly in the incinerator, advancing gradually from the feeding end to the discharging end, ensuring the continuity of the entire incineration process. Through the movement of the grate bars, the waste can be stirred and flipped, enabling the waste to come into full contact with air, facilitating the uniform heating of the waste, thereby improving the combustion efficiency and making the waste burn more fully.

[0004] The grate bars work in a high-temperature environment. If effective heat dissipation cannot be achieved, the temperature of the grate bars will continue to rise. Excessive temperature will cause the strength of the grate bar material to decrease, resulting in deformation or even damage, affecting the normal operation and service life of the grate bars. Using forced ventilation for active cooling is a commonly used cooling method for grate bars at present. That is, through the ventilation system, air is introduced around the grate bars. After the air comes into contact with the high-temperature grate bars, it absorbs heat, rises in temperature, and takes away the heat, thereby achieving the heat dissipation of the grate bars.

[0005] Most of the current grate bars improve the cooling effect by setting air guiding rib plates. The extending direction of the air guiding rib plates is parallel to the length direction of the grate bars, enabling the cooling air to flow from one end of the grate bar to the other end to achieve heat exchange with the grate bars. However, by setting air guiding rib plates, the improved cooling effect is limited.

[0006] Therefore, how to improve the cooling effect is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0007] In view of this, the purpose of the present application is to provide a dynamic diversion type air-cooled grate bar to improve the cooling effect;

[0008] Another purpose of the present application is to provide an incinerator with the above-mentioned dynamic diversion type air-cooled grate bar.

[0009] To achieve the above purposes, the present application provides the following technical solutions:

[0010] The first aspect of the present application provides a dynamic diversion type air-cooled grate bar, including:

[0011] The grate bar body, the upper side of the grate bar body is the garbage - bearing side, the lower side of the grate bar body has air - guiding side plates, the first end of the grate bar body has a claw for supporting on the grate beam, and the second end of the grate bar body has air - outlet holes;

[0012] The diversion device is arranged on the lower side of the grate bar body. The diversion device encloses a main air - inlet channel. The main air - inlet channel is an inclined channel, and in the direction from the lower side to the upper side of the grate bar body, the main air - inlet channel gradually approaches the second end of the grate bar body.

[0013] In a possible implementation manner, an auxiliary air - inlet channel is formed between the diversion device and the first end of the grate bar body;

[0014] The dynamic - diversion air - cooled grate bar includes a first relative position and a second relative position. When the dynamic - diversion air - cooled grate bar is in the first relative position, the diversion device of the dynamic - diversion air - cooled grate bar is blocked by the lower - side dynamic - diversion air - cooled grate bar;

[0015] When the dynamic - diversion air - cooled grate bar is in the second relative position, the diversion device of the dynamic - diversion air - cooled grate bar is staggered from the lower - side dynamic - diversion air - cooled grate bar;

[0016] When the dynamic - diversion air - cooled grate bar is in the first relative position and the second relative position, the auxiliary air - inlet channel of the dynamic - diversion air - cooled grate bar is staggered from the lower - side dynamic - diversion air - cooled grate bar.

[0017] In a possible implementation manner, the diversion device is of a cylindrical structure, and two side plates of the diversion device are respectively fixed to the two air - guiding side plates through fixing members.

[0018] In a possible implementation manner, air - guiding rib plates are arranged on the lower side of the grate bar body, and the air - guiding rib plates are located between the two air - guiding side plates;

[0019] The height of the air - guiding rib plates is lower than the height of the air - guiding side plates, and the diversion device protrudes beyond the air - guiding side plates.

[0020] In a possible implementation manner, one end of the diversion device abuts against the air - guiding rib plates.

[0021] In a possible implementation manner, the ventilation area of the air - inlet side of the main air - inlet channel is larger than the ventilation area of the air - outlet side of the main air - inlet channel.

[0022] In a possible implementation manner, the grate bar body includes:

[0023] The main body of the grate bar, the air guiding side plates, the air guiding device and the clamping claws are all located on the main body of the grate bar. Two adjacent dynamic air guiding type air-cooled grate bars are connected by a grate bar connecting piece, and the grate bar connecting piece is used to connect the air guiding side plates of two adjacent grate bars. The upper part of the second end of the main body of the grate bar has a bearing notch that can expose the grate bar connecting piece;

[0024] The grate cover is detachably arranged on the main body of the grate bar to close the bearing notch, so that the upper side surface of the grate cover and the upper side surface of the main body of the grate bar form the garbage bearing side of the grate bar body.

[0025] In a possible implementation manner, the grate cover includes a cover upper side surface, a cover front side surface and a cover transition surface connecting the cover upper side surface and the cover front side surface;

[0026] The cover upper side surface is in the same plane as the upper side surface of the main body of the grate bar and jointly forms the garbage bearing side of the grate bar body;

[0027] The cover front side surface forms the end surface of the second end of the grate bar body, and the air outlet holes are arranged on the cover front side surface.

[0028] In a possible implementation manner, a first plug-in body is arranged on the main body of the grate bar, and a second plug-in body that is in plug-in fit with the first plug-in body is arranged on the grate cover.

[0029] In a possible implementation manner, air guiding rib plates are arranged on the lower side of the grate bar body, and the air guiding rib plates are located between the two air guiding side plates;

[0030] The air guiding rib plates include a first rib plate part arranged on the main body of the grate bar and a second rib plate part arranged on the grate cover. When the grate cover is installed on the main body of the grate bar, the second rib plate part is butted against the first rib plate part;

[0031] At least part of the second plug-in body is arranged on the second rib plate part.

[0032] In a possible implementation manner, it further includes a clamping plate, the clamping plate is detachably arranged on the lower side of the grate bar body, and the clamping plate and the clamping claws enclose a fixing groove for fixing the grate beam.

[0033] In a possible implementation manner, the clamping plate includes a first clamping plate part and a second clamping plate part, the first clamping plate part and the second clamping plate part are perpendicular, the first clamping plate part is detachably arranged on the lower side of the grate bar body, the second clamping plate part and the clamping claws enclose the fixing groove with a notch, and the notch width of the fixing groove is smaller than the diameter of the grate beam.

[0034] In a possible implementation, the clamping plates of the dynamic flow-guiding air-cooled grate bars in the same row are of an integral structure, or the clamping plates of the dynamic flow-guiding air-cooled grate bars in the same row are of a split structure that are independent of each other.

[0035] In a possible implementation, the air outlet holes include:

[0036] A first air outlet hole section that slopes downward in the direction from the air inlet end to the air outlet end;

[0037] A second air outlet hole section communicating with the first air outlet hole section, the second air outlet hole section communicating with the end face of the second end of the grate bar body, and the extension direction of the upper side wall of the second air outlet hole section forms a first included angle with the horizontal plane, and the extension direction of the lower side wall of the second air outlet hole section forms a second included angle with the horizontal plane, and the second included angle is greater than the first included angle.

[0038] The dynamic flow-guiding air-cooled grate bar provided by the present application adds a flow-guiding device on the basis of the traditional grate bar. The flow-guiding device is arranged on the lower side of the grate bar body. Since the primary air of the incinerator is below the grate bar, arranging the flow-guiding device on the lower side of the grate bar body can guide the primary air flowing through the grate bar body. The flow-guiding device encloses a main air inlet channel, and the main air inlet channel is an inclined channel. The inclined arrangement of the main air inlet channel can make the primary air more easily enter the main air inlet channel and flow along the extension direction of the main air inlet channel to the lower side face of the grate bar body, and flow along the lower side face of the grate bar body towards the second end of the grate bar body until it flows out from the air outlet hole. The dynamic flow-guiding air-cooled grate bar provided by the present application, due to having the flow-guiding device, can make the primary air close to the garbage-carrying side of the grate bar body, improving the cooling effect on the upper high-temperature combustion area of the grate bar body.

[0039] The second aspect of the present application provides an incinerator, including multiple rows of grate bar rows arranged in sequence along the conveying direction of the garbage. Each row of grate bar rows includes a plurality of dynamically flow-guided air-cooled grate bars connected in sequence, and the dynamically flow-guided air-cooled grate bars are the dynamically flow-guided air-cooled grate bars as described in any one of the above;

[0040] One of any two adjacent rows of grate bar rows is a fixed grate bar row, and the other is a movable grate bar row.

[0041] The incinerator provided by the present application, due to having the above-mentioned dynamically flow-guided air-cooled grate bars, has all the technical effects of the above-mentioned dynamically flow-guided air-cooled grate bars, which will not be elaborated herein again. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0043] Figure 1 Structural schematic diagram of the grate bar assembly disclosed in the embodiment of the present application;

[0044] Figure 2 Front view of the mobile grate bar in the retracted position disclosed in the embodiment of the present application;

[0045] Figure 3 Front view of the mobile grate bar in the advanced position disclosed in the embodiment of the present application;

[0046] Figure 4 Exploded view of the dynamic diversion air-cooled grate bar disclosed in the embodiment of the present application at a certain angle;

[0047] Figure 5 Exploded view of the dynamic diversion air-cooled grate bar disclosed in the embodiment of the present application at another angle;

[0048] Figure 6 Structural schematic diagram of the dynamic diversion air-cooled grate bar disclosed in the embodiment of the present application at a certain angle;

[0049] Figure 7 Structural schematic diagram of the dynamic diversion air-cooled grate bar disclosed in the embodiment of the present application at another angle;

[0050] Figure 8 Front view of the dynamic diversion air-cooled grate bar disclosed in the embodiment of the present application;

[0051] Figure 9 Partial sectional view of the dynamic diversion air-cooled grate bar disclosed in the embodiment of the present application at the air outlet;

[0052] Figure 10 Structural schematic diagram of multiple grate bars in the same row supported on the grate beam disclosed in the embodiment of the present application;

[0053] Figure 11 Airflow simulation effect diagram of the grate bar in the advanced position disclosed in the embodiment of the present application;

[0054] Figure 12 Airflow simulation effect diagram of the grate bar in the retracted position disclosed in the embodiment of the present application;

[0055] Figure 13 Airflow simulation effect diagram of the traditional grate bar.

[0056] The meanings of the various reference numerals in the figures are as follows:

[0057] 100 - Dynamic diversion air-cooled grate bars; 101 - Grate bar body; 1011 - Grate bar fixing hole; 1012 - First mounting hole; 1013 - First insertion body; 1014 - Claw; 1015 - Air guiding side plate; 1016 - Air guiding rib plate; 1017 - Card slot; 102 - Grate cover; 1021 - Air outlet hole; 10211 - First air outlet hole section; 10212 - Second air outlet hole section; 1022 - Second insertion body; 103 - Diversion device; 104 - Card plate;

[0058] 200 - Grate beam. Detailed implementation manners

[0059] The embodiment of the present application discloses a dynamic diversion air-cooled grate bar to improve the cooling effect;

[0060] The embodiment of the present application also discloses an incinerator having the above-mentioned dynamic diversion air-cooled grate bar.

[0061] Hereinafter, the embodiments will be described with reference to the drawings. In addition, the embodiments shown below do not impose any limitation on the application content recited in the claims. In addition, all the contents of the configurations shown in the following embodiments are not limited to those necessary for the solution of the application recited in the claims. It should be noted that, for the sake of description, only the parts related to the relevant application are shown in the drawings. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0062] As Figure 1 shown, the dynamic diversion air-cooled grate bar 100 disclosed in the embodiment of the present application includes a grate bar body and a diversion device 103. Among them, the upper side of the grate bar body is the garbage-carrying side, and the garbage-carrying side of the grate bar body can hold the garbage and make it move orderly in the incinerator.

[0063] As Figure 4 and Figure 5 shown, the lower side of the grate bar body has air guiding side plates 1015. Generally, there are two air guiding side plates 1015, which are respectively located on both sides of the grate bar body, so that the grate bar body has a box structure to improve the structural strength of the grate bar body and prevent the garbage-carrying side from deforming.

[0064] The two ends of the grate bar body in the garbage conveying direction are the first end and the second end respectively. The first end of the grate bar body has a claw 1014 for supporting on the grate beam 200. The claw 1014 is generally a trough structure with a downward opening, and the grate beam 200 is placed into this trough structure to realize the support of the dynamic diversion type air-cooled grate bar. Usually, in the width direction of the incinerator, one grate beam 200 supports multiple dynamic diversion type air-cooled grate bars to form a row of grate bars. In the garbage conveying direction, there are multiple rows of grate bars. Usually, in the garbage conveying direction, the fixed grate and the movable grate are arranged alternately, that is, one row of fixed grates and one row of movable grates.

[0065] The second end of the grate bar body has an air outlet hole 1021. The flowing direction of the primary air on the dynamic diversion type air-cooled grate bar 100 is: from the first end to the second end of the grate bar body. The primary air will finally flow out of the grate bar body through the air outlet hole 1021, and then take away the temperature of the dynamic diversion type air-cooled grate bar 100 to achieve the cooling effect.

[0066] The diversion device 103 is arranged on the lower side of the grate bar body. The diversion device 103 encloses a main air inlet channel. The main air inlet channel is an inclined channel, and in the direction from the lower side to the upper side of the grate bar body, the main air inlet channel gradually approaches the second end of the grate bar body. That is, the lower side of the main air inlet channel is close to the first end of the grate bar body, and the upper side of the main air inlet channel is close to the second end of the grate bar body. Since the flowing direction of the primary air on the dynamic diversion type air-cooled grate bar 100 is: from the first end to the second end of the grate bar body, the primary air can enter the main air inlet channel from the lower side of the main air inlet channel and flow out from the upper side of the main air inlet channel. That is, the diversion device 103 can guide the primary air to the upper side plate surface of the grate bar body, making the primary air closer to the garbage bearing side to achieve a better cooling effect.

[0067] The dynamic diversion type air-cooled grate bar 100 disclosed in the embodiment of the present application adds a diversion device 103 on the basis of the traditional grate bar. The diversion device 103 is arranged on the lower side of the grate bar body. Since the primary air of the incinerator is under the dynamic diversion type air-cooled grate bar 100, setting the diversion device 103 on the lower side of the grate bar body can guide the primary air flowing through the grate bar body. The diversion device 103 encloses a main air inlet channel. The main air inlet channel is an inclined channel. The inclined arrangement of the main air inlet channel can make the primary air more easily enter the main air inlet channel, flow along the extending direction of the main air inlet channel to the lower side surface of the grate bar body, and flow along the lower side surface of the grate bar body towards the second end of the grate bar body until it flows out from the air outlet hole. The dynamic diversion type air-cooled grate bar 100 disclosed in the embodiment of the present application, due to having the diversion device 103, can make the primary air close to the garbage bearing side of the grate bar body and improve the cooling effect on the upper high-temperature combustion area of the grate bar body.

[0068] In a specific embodiment of the present application, an auxiliary air inlet channel is formed between the guide device 103 and the first end of the grate plate body, that is, the guide device 103 cannot completely cover the entire area on the lower side of the grate plate body. The guide device 103 can be set in the middle area on the lower side of the grate plate body, so that the area between the guide device 103 and the first end of the grate plate body forms an auxiliary air inlet channel, and the side wall of the guide device 103 facing the first end of the grate plate body can form a guide structure of the auxiliary air inlet channel.

[0069] like Figure 2 and Figure 3 As shown, the dynamic flow-guiding air-cooling grate 100 includes a first relative position and a second relative position. When the dynamic flow-guiding air-cooling grate is in the first relative position, the flow-guiding device 103 of the dynamic flow-guiding air-cooling grate is blocked by the dynamic flow-guiding air-cooling grate below. When the dynamic flow-guiding air-cooling grate is in the second relative position, the flow-guiding device 103 of the dynamic flow-guiding air-cooling grate is staggered with the dynamic flow-guiding air-cooling grate below. Figure 2 The middle dynamic flow-guiding air-cooling grate slice 100 of the three dynamic flow-guiding air-cooling grate slices 100 shown is in the second relative position, and the upper dynamic flow-guiding air-cooling grate slice 100 is in the first relative position; Figure 3 The middle dynamic flow-conducting air-cooling grate slice 100 of the three dynamic flow-conducting air-cooling grate slices 100 shown is in a first relative position, and the upper dynamic flow-conducting air-cooling grate slice 100 is in a second relative position.

[0070] Figure 2 and Figure 3 In the illustrated solution, the dynamic flow-guiding air-cooling grate slice 100 in the middle is a mobile grate slice, while the dynamic flow-guiding air-cooling grate slices 100 on the upper and lower sides are fixed grate slices. When the mobile grate slice moves back and forth, it will change its own position, and at the same time, it will also change the position of the fixed grate slice on the upper side adjacent to it.

[0071] When the dynamic flow-guiding air-cooling grate is in the first relative position and the second relative position, the auxiliary air inlet channel of the dynamic flow-guiding air-cooling grate is staggered with the dynamic flow-guiding air-cooling grate below. That is, the auxiliary air inlet channel is arranged on the side close to the first end of the grate body, so that when the movable grate moves back and forth, it will not be blocked by the dynamic flow-guiding air-cooling grate 100 below it.

[0072] by Figure 2 and Figure 3 From the perspective of the dynamic flow-guiding air-cooled grate in the middle, when it is in the forward position ( Figure 3), the guiding device 103 of the dynamic guiding air-cooled grate bar in the middle is above the first end of the dynamic guiding air-cooled grate bar below. In this condition, the dynamic guiding air-cooled grate bar in the middle can make the primary air enter the top of the grate bar body from the auxiliary air inlet passage between the guiding device 103 and the first end of the grate bar (see Figure 3 for the arrow), and can cool the combustion area completely exposed by the dynamic guiding air-cooled grate bar in the middle.

[0073] When the dynamic guiding air-cooled grate bar in the middle is in the retracted position ( Figure 2 ), there is no obstruction below the guiding device 103 of the dynamic guiding air-cooled grate bar in the middle. In this condition, the primary air can directly enter the top of the grate bar body from the guiding device 103 (see Figure 2 for the arrow) to cool the combustion area above it. This design can improve the cooling effect of the combustion area above the dynamic guiding air-cooled grate bar under different conditions.

[0074] In this embodiment, by the reciprocating movement of the movable grate bar, the positional relationship with the fixed grate bars on the upper and lower sides is changed, so that the dynamic guiding air-cooled grate bar has a first relative position and a second relative position. For example, when one of the movable grate bars moves to the retracted position, then this movable grate bar is in the second relative position, while the fixed grate bar above this movable grate bar is in the first relative position (as Figure 2 shown); when one of the movable grate bars moves to the advanced position, then this movable grate bar is in the first relative position, while the fixed grate bar above this movable grate bar is in the second relative position (as Figure 3 shown). When the dynamic guiding air-cooled grate bar is in the first relative position and the second relative position, its guiding device 103 can be switched between being blocked and not being blocked by the dynamic guiding air-cooled grate bar below. The guiding device 103 moves with the grate bar, automatically adjusting the air duct distribution, which can enhance the targeted cooling in the high-temperature area and improve the cooling effect of the combustion area above the dynamic guiding air-cooled grate bar under different conditions.

[0075] Taking the dynamic guiding air-cooled grate bar in the middle as the analysis object, as Figure 11As shown, the dynamic flow - guiding air - cooled grate bar in the middle is in the forward position, that is, it is in the first relative position. Its flow - guiding device 103 is blocked by the dynamic flow - guiding air - cooled grate bar below, so that the primary air cannot enter through the main air - inlet channel of the flow - guiding device 103. The primary air can only enter through the auxiliary air - inlet channel at the tail of the flow - guiding device 103. When the primary air enters from the auxiliary air - inlet channel, it will also be guided by the inclined side wall of the flow - guiding device 103. The primary air is guided to the top of the grate bar body to cool the combustion area at the top of the grate bar body. Since the auxiliary air - inlet channel is located at the rear side of the main air - inlet channel, when the dynamic flow - guiding air - cooled grate bar in the middle is in the forward position, a large area of its top cannot be blocked by the dynamic flow - guiding air - cooled grate bar above it. Therefore, when the primary air enters from the auxiliary air - inlet channel, it can exchange heat with all the exposed areas of the middle grate bar that cannot be blocked by the upper - side grate bar.

[0076] As Figure 12 shown, the dynamic flow - guiding air - cooled grate bar in the middle is in the backward position, that is, it is in the second relative position. Its flow - guiding device 103 can avoid the dynamic flow - guiding air - cooled grate bar below, so that the primary air can enter through the main air - inlet channel of the flow - guiding device 103. Since the main air - inlet channel is an inclined channel, the side wall of the flow - guiding device 103 is also in an inclined posture. In this way, the inlet area of the auxiliary air - inlet channel is smaller than the outlet area. So it is less likely for the primary air to enter the auxiliary air - inlet channel. Based on this, when the dynamic flow - guiding air - cooled grate bar is in the backward position, the primary air is more likely to enter the main air - inlet channel. Therefore, a large amount of primary air enters the main air - inlet channel. The primary air is guided to the top of the grate bar body to cool the combustion area at the top of the grate bar body. Since the main air - inlet channel is located at the front side of the auxiliary air - inlet channel, when the dynamic flow - guiding air - cooled grate bar in the middle is in the backward position, the rear - part area of its top is blocked by the upper - side grate bar. Therefore, when the primary air enters from the main air - inlet channel, it can exchange heat with the front - side exposed area of the middle grate bar that cannot be blocked by the upper - side grate bar, so it has a better heat - exchange effect.

[0077] When the position of the dynamic flow - guiding air - cooled grate bar changes, the exposed area at its top is different, and the exposed area has a higher temperature than the blocked area. In this embodiment, through the blocked and un - blocked states of the flow - guiding device 103 by the lower - side grate bar, the primary air can only exchange heat with the exposed area at the top of the dynamic flow - guiding air - cooled grate bar, and a better cooling effect can be obtained.

[0078] As Figure 13 shown, Figure 13 shows the primary - air flow condition of the grate bar without the flow - guiding device 103. It can be seen that after the primary air enters the grate - bar area, it cannot be close to the top of the grate bar. Therefore, the heat - exchange effect is not good, and the primary air will exchange heat with both the exposed area and the blocked area at the top of the grate bar at the same time, and cannot specifically exchange heat only with the protected area.

[0079] In a specific embodiment of the present application, the flow guiding device 103 is a cylindrical structure. Considering the shape of the grate bar body, the flow guiding device 103 can be a rectangular cylindrical structure, that is, the cross-section of the flow guiding device 103 is rectangular.

[0080] Two side plates of the flow guiding device 103 are respectively fixed to the two air guiding side plates 1015 through fixing members. As Figure 4 shown, first mounting holes 1012 are provided on the air guiding side plates 1015, and second mounting holes are formed on the corresponding side plates of the flow guiding device 103. The fixing members respectively pass through the first mounting holes 1012 and the second mounting holes for fixing, achieving the effect of fixing the flow guiding device 103 on the air guiding side plates 1015. In this embodiment, the flow guiding device 103 and the grate bar body are detachably connected, enabling the grate bar body and the flow guiding device 103 to be respectively manufactured and then assembled, reducing the manufacturing difficulty.

[0081] As Figure 7 shown, in this embodiment, air guiding rib plates 1016 are provided on the lower side of the grate bar body, and the air guiding rib plates 1016 are located between the two air guiding side plates 1015. Those skilled in the art can set the number of the air guiding rib plates 1016 according to requirements. Each air guiding rib plate 1016 and the air guiding side plates 1015 can be arranged in parallel and all extend along the direction from the first end to the second end of the grate bar body, that is, along the flowing direction of the primary air, so that guiding air ducts are formed between the air guiding rib plates 1016 and between the air guiding rib plates 1016 and the air guiding side plates 1015, increasing the heat exchange area, improving the heat exchange efficiency of the dynamic flow guiding air-cooled grate bars, and at the same time enhancing the overall support strength of the dynamic flow guiding air-cooled grate bars.

[0082] The height of the air guiding rib plates 1016 is lower than the height of the air guiding side plates 1015, and the flow guiding device 103 protrudes beyond the air guiding side plates 1015 to facilitate the primary air flow to enter the flow guiding device 103, and the air flow flowing out of the flow guiding device 103 can directly enter the guiding air ducts between the air guiding rib plates 1016 and between the air guiding rib plates 1016 and the air guiding side plates 1015 and flow along the guiding air ducts.

[0083] One end of the flow guiding device 103 can be abutted against the air guiding rib plates 1016. When the flow guiding device 103 is abutted against the air guiding rib plates 1016, the distance from the outlet end of the flow guiding device 103 to the top plate surface of the grate bar body is the height of the air guiding rib plates 1016. Therefore, the distance between the flow guiding device 103 and the top plate surface of the grate bar body can be controlled by the height of the air guiding rib plates 1016, and then the degree of the primary air flow close to the top plate surface of the grate bar body can be controlled.

[0084] In a specific embodiment of the present application, the ventilation area on the air inlet side of the main air inlet passage is larger than the ventilation area on the air outlet side of the main air inlet passage. That is, the main air inlet passage can be a conical air duct, and the area on the side of the air inlet is larger than the area on the side of the air outlet. Such a setting can make the air intake volume of the main air inlet passage larger. It should be noted that the main air inlet passage can also be designed as a passage with a constant cross-section, that is, along the air inlet direction, the cross-sectional areas at various positions are equal.

[0085] As Figures 2 - 6 shown, in a specific embodiment of the present application, the grate bar body includes a grate bar main body 101 and a grate cover 102. That is, in this embodiment, the grate bar body is divided into two parts.

[0086] The grate bar main body 101 is the main part of the grate bar body. The air guiding side plate 1015, the air guiding device 103, and the claw 1014 are all located on the grate bar main body 101. Adjacent two dynamic air guiding type air-cooled grate bars are connected by a grate bar connecting piece. The grate bar connecting piece is used to connect the air guiding side plates 1015 of adjacent two dynamic air guiding type air-cooled grate bars. A grate bar fixing hole 1011 for the grate bar connecting piece to pass through is provided on the air guiding side plate 1015. Taking three dynamic air guiding type air-cooled grate bars as an example, in the same row, the three sequentially arranged dynamic air guiding type air-cooled grate bars are respectively defined as the first grate bar, the second grate bar, and the third grate bar. The air guiding side plate 1015 on the left side of the second grate bar is arranged adjacent to the air guiding side plate 1015 on the right side of the first grate bar and is connected and fixed by a grate bar connecting piece. The air guiding side plate 1015 on the right side of the second grate bar is arranged adjacent to the air guiding side plate 1015 on the left side of the third grate bar and is connected and fixed by a grate bar connecting piece.

[0087] Since the top plate surface of the grate bar body is the garbage bearing surface, that is, this garbage bearing surface will block the grate bar connecting piece. When one of the dynamic air guiding type air-cooled grate bars is damaged and needs to be replaced, because the grate bar connecting piece is blocked by the top garbage bearing surface of the grate bar body and cannot be removed, it is necessary to remove the entire row of grate bars together. Then, outside the furnace body, turn the entire row of grate bars over so that the lower part is upward, so that the grate bar connecting piece is exposed, and then remove and replace the damaged dynamic air guiding type air-cooled grate bar, which reduces the efficiency of the dynamic air guiding type air-cooled grate bar.

[0088] Based on this, in this embodiment, a bearing notch capable of exposing the grate bar connecting piece is provided at the upper part of the second end of the grate bar main body 101. The grate cover 102 is detachably arranged on the grate bar main body 101 to close the bearing notch, so that the upper side surface of the grate cover 102 and the upper side surface of the grate bar main body 101 form the garbage bearing side of the grate bar body.

[0089] When one of the dynamic diversion type air-cooled grate bars needs to be replaced, only the grate cover 102 of the dynamic diversion type air-cooled grate bar needs to be removed, so that the load-bearing notch of the dynamic diversion type air-cooled grate bar exposes the grate bar connecting member connecting the dynamic diversion type air-cooled grate bar. The operator removes the corresponding grate bar connecting member through the load-bearing notch, so that the damaged dynamic diversion type air-cooled grate bar loses its connection with the surrounding dynamic diversion type air-cooled grate bars, and then the damaged dynamic diversion type air-cooled grate bar can be removed separately, improving the replacement efficiency.

[0090] In this embodiment, the grate cover 102 includes an upper side surface of the cover body, a front side surface of the cover body, and a cover body transition surface connecting the upper side surface of the cover body and the front side surface of the cover body. The upper side surface of the cover body and the front side surface of the cover body can be at a right angle, and the cover body transition surface forms an obtuse angle with both the upper side surface of the cover body and the front side surface of the cover body.

[0091] The upper side surface of the cover body is in the same plane as the upper side surface of the grate bar main body 101, and they jointly form the garbage-bearing side of the grate bar body. The front side surface of the cover body forms the end surface of the second end of the grate bar body, and the air outlet holes 1021 are arranged on the front side surface of the cover body. The number of the air outlet holes 1021 can be multiple, and those skilled in the art can design the specific number according to requirements.

[0092] The grate cover 102 can be snap-fitted on the grate bar main body 101. Specifically, a first plug-in body 1013 is arranged on the grate bar main body 101, and a second plug-in body 1022 that is in plug-in fit with the first plug-in body 1013 is arranged on the grate cover 102. The first plug-in body 1013 and the second plug-in body 1022 are in one-to-one plug-in fit. The first plug-in body 1013 and the second plug-in body 1022 can be multiple and are distributed at multiple positions to improve the installation reliability of the grate cover 102.

[0093] One of the first plug-in body 1013 and the second plug-in body 1022 can be a plug board, and the other can be a jack. The plug board is inserted into the jack to fix the grate cover 102. Figure 4 In the shown scheme, both the first plug-in body 1013 and the second plug-in body 1022 are three. Taking the first plug-in body 1013 as the jack and the second plug-in body 1022 as the plug board as an example, plug boards are arranged at both ends of the grate cover 102. Therefore, jacks need to be arranged at the corresponding positions of the grate bar main body 101. When the corresponding positions do not have the conditions for opening jacks, mounting seats can be added and jacks can be opened on the mounting seats.

[0094] Further, a wind guiding rib plate 1016 is provided on the lower side of the grate bar body. The wind guiding rib plate 1016 is located between the two wind guiding side plates 1015. The wind guiding rib plate 1016 includes a first rib plate portion provided on the grate bar main body 101 and a second rib plate portion provided on the grate cover 102. When the grate cover 102 is installed on the grate bar main body 101, the second rib plate portion is butted against the first rib plate portion to form a continuous wind guiding rib plate 1016.

[0095] At least a part of the second plug-in body 1022 is provided on the second rib plate portion. Of course, all of the second plug-in bodies 1022 can also be provided on the corresponding second rib plate portions. In this embodiment, by arranging the second plug-in body 1022 on the second rib plate portion, the height of the second rib plate portion can be utilized, so that the material used for the second plug-in body 1022 can be reduced and the manufacturing cost can be lowered.

[0096] As Figure 8 and Figure 10 shown, in a specific embodiment of the present application, the dynamic diversion air-cooled grate bar may further include a clamping plate 104. The clamping plate 104 is detachably provided on the lower side of the grate bar body, and the clamping plate 104 and the clamping claws 1014 enclose a fixing groove for fixing the grate beam 200. By relying on the cooperation between the clamping plate 104 and the clamping claws 1014 at the first end of the dynamic diversion air-cooled grate bar, it can be ensured that the dynamic diversion air-cooled grate bar will not fall off the grate beam 200 during operation, thus improving safety.

[0097] In this embodiment, the clamping plate 104 includes a first clamping plate portion and a second clamping plate portion. The first clamping plate portion and the second clamping plate portion are perpendicular, so that the first clamping plate portion and the second clamping plate of the clamping plate 104 form an L-shaped structure. The first clamping plate portion is detachably provided on the lower side of the grate bar body. Specifically, clamping members can be provided on both sides of the first clamping plate portion, and clamping grooves 1017 are formed on the wind guiding rib plate 1016 on the lower side of the grate bar body (as Figure 7 shown). The first clamping plate portion is fixed on the grate bar body by clamping the clamping members on both sides thereof into the clamping grooves 1017 of two adjacent wind guiding rib plates 1016. It should be noted that the fixing method of the first clamping plate portion disclosed in the above embodiment is only an example, and those skilled in the art can select other fixing methods according to requirements, such as fixing with fasteners, fixing with pins, etc. The present embodiment does not limit the fixing method of the first clamping plate portion.

[0098] After the first clamping plate part is fixed on the grate bar body, the second clamping plate part and the clamping claws 1014 enclose a fixing groove with a notch. The width of the notch of the fixing groove is smaller than the diameter of the grate beam 200, so that the grate beam 200 cannot escape through the notch of the fixing groove. The second clamping plate part is located on the lower side of the grate beam 200. By arranging the clamping plate 104, the dynamic flow guiding air-cooled grate bar cannot fall off the grate beam 200 without disassembling the clamping plate 104. When it is necessary to disassemble the corresponding dynamic flow guiding air-cooled grate bar, it is necessary to first remove the clamping plate 104 corresponding to the dynamic flow guiding air-cooled grate bar, so that the width of the notch of the fixing groove is greater than the diameter of the grate beam 200, and then the corresponding dynamic flow guiding air-cooled grate bar can be removed.

[0099] In this embodiment, the clamping plates 104 of the dynamic flow guiding air-cooled grate bars in the same row can be of an integral structure or a split structure. That is, the clamping plates 104 corresponding to the dynamic flow guiding air-cooled grate bars in the same row can be integrated, or the clamping plates 104 corresponding to the dynamic flow guiding air-cooled grate bars in the same row can be independent of each other.

[0100] When the clamping plates 104 corresponding to the dynamic flow guiding air-cooled grate bars in the same row are of an integral structure, even if some of the clamping plates 104 of the dynamic flow guiding air-cooled grate bars fall off, they can be restricted by the other normally fixed clamping plates 104 and remain in the fixed position, improving the safety of the dynamic flow guiding air-cooled grate bars.

[0101] When the clamping plates 104 corresponding to the dynamic flow guiding air-cooled grate bars in the same row are independent of each other, it is convenient to disassemble a certain dynamic flow guiding air-cooled grate bar. That is, only the clamping plate 104 corresponding to the dynamic flow guiding air-cooled grate bar needs to be disassembled to realize the disassembly of the dynamic flow guiding air-cooled grate bar, without disassembling all the clamping plates 104 in the whole row, improving the disassembly efficiency.

[0102] As Figure 9 shown, in a specific embodiment of the present application, the air outlet hole 1021 includes a first air outlet hole section 10211 and a second air outlet hole section 10212. Among them, the first air outlet hole section 10211 slopes downward in the direction from the air inlet end to the air outlet end, the second air outlet hole section 10212 is communicated with the first air outlet hole section 10211, and the second air outlet hole section 10212 is communicated to the end surface of the second end of the grate bar body to form the air outlet end of the air outlet hole 1021.

[0103] The included angle between the extending direction of the upper side wall of the second air outlet hole section 10212 and the horizontal plane is the first included angle a, and the included angle between the extending direction of the lower side wall of the second air outlet hole section 10212 and the horizontal plane is the second included angle b. The second included angle b is greater than the first included angle a. That is, the slope of the lower side of the second air outlet hole section 10212 inclined downward is greater, making the air outlet end of the air outlet hole 1021 in a water droplet shape. Since the whole is inclined downward along the air flow direction and combined with the greater slope of the lower side of the air outlet end of the air outlet hole 1021 inclined downward, the air outlet hole 1021 is not easily blocked by ash. The structure of the air outlet hole 1021 is beneficial to the outflow of the internal cooling air of the dynamic diversion type air-cooled grate bar, and at the same time can prevent external ash from entering the dynamic diversion type air-cooled grate bar internally.

[0104] The embodiment of the present application also discloses an incinerator, which includes multiple rows of grate rows arranged in sequence along the conveying direction of the garbage. Each row of grate rows includes a plurality of dynamically diverted air-cooled grate bars 100 connected in sequence. The dynamically diverted air-cooled grate bar 100 is the dynamically diverted air-cooled grate bar 100 disclosed in the above embodiment. One of the adjacent two rows of grate rows is a fixed grate row, and the other is a movable grate row. Since the incinerator disclosed in the embodiment of the present application has the above-mentioned dynamically diverted air-cooled grate bar 100, it has all the technical effects of the above-mentioned dynamically diverted air-cooled grate bar 100, which will not be elaborated herein again.

[0105] As shown in the present application and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one" and / or "the" are not specifically singular and may also include plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. An element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, commodity or device including the element.

[0106] In the description of the present application, unless otherwise clearly defined, words such as "set", "installed", "connected" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present application in combination with the specific content of the technical solution.

[0107] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0108] In this article, specific examples are used to elaborate on the principles and implementation manners of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. It should be noted that for those of ordinary skill in the art, without departing from the principles of this application, several improvements and modifications can still be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A dynamic diversion type air-cooled grate bar, characterized in that Comprising: The grate bar body, the upper side of the grate bar body is the garbage bearing side, the lower side of the grate bar body has air guiding side plates (1015), the first end of the grate bar body has claws (1014) for supporting on the grate beam (200), and the second end of the grate bar body has air outlet holes (1021); A flow guiding device (103), arranged on the lower side of the grate bar body, the flow guiding device (103) encloses a main air inlet channel, the main air inlet channel is an inclined channel, and in the direction from the lower side to the upper side of the grate bar body, the main air inlet channel gradually approaches the second end of the grate bar body.

2. The dynamic flow guiding air-cooled grate bar according to claim 1, wherein A secondary air inlet channel is formed between the flow guiding device (103) and the first end of the grate bar body; The dynamic flow guiding air-cooled grate bar includes a first relative position and a second relative position. When the dynamic flow guiding air-cooled grate bar is in the first relative position, the flow guiding device (103) of the dynamic flow guiding air-cooled grate bar is blocked by the lower dynamic flow guiding air-cooled grate bar; When the dynamic flow guiding air-cooled grate bar is in the second relative position, the flow guiding device (103) of the dynamic flow guiding air-cooled grate bar is staggered from the lower dynamic flow guiding air-cooled grate bar; When the dynamic flow guiding air-cooled grate bar is in the first relative position and the second relative position, the secondary air inlet channel of the dynamic flow guiding air-cooled grate bar is staggered from the lower dynamic flow guiding air-cooled grate bar.

3. The dynamic flow guiding type air-cooled grate bar according to claim 1, wherein, The flow guiding device (103) is of a cylindrical structure, and two side plates of the flow guiding device (103) are respectively fixed on the two air guiding side plates (1015) through fixing pieces.

4. The dynamic flow guiding air-cooled grate bar according to claim 3, wherein, Air guiding rib plates (1016) are arranged on the lower side of the grate bar body, and the air guiding rib plates (1016) are located between the two air guiding side plates (1015); The height of the air guiding rib plates (1016) is lower than the height of the air guiding side plates (1015), and the flow guiding device (103) protrudes out of the air guiding side plates (1015).

5. The dynamic flow guiding air-cooled grate bar according to claim 4, wherein, One end of the flow guiding device (103) abuts against the air guiding rib plates (1016).

6. The dynamic diversion type air-cooled grate bar according to claim 1, wherein The ventilation area of the air inlet side of the main air inlet channel is larger than the ventilation area of the air outlet side of the main air inlet channel.

7. The dynamic flow guiding air-cooled grate bar according to claim 1, wherein The grate bar body includes: A grate bar main body (101), the air guiding side plates (1015), the flow guiding device (103) and the claws (1014) are all located on the grate bar main body (101). Adjacent two dynamic flow guiding air-cooled grate bars are connected through a grate bar connecting piece, the grate bar connecting piece is used for connecting the air guiding side plates (1015) of adjacent two grate bars, and the upper part of the second end of the grate bar main body (101) has a bearing notch capable of exposing the grate bar connecting piece; A grate cover (102), detachably arranged on the grate bar main body (101) to close the bearing notch, so that the upper side surface of the grate cover (102) and the upper side surface of the grate bar main body (101) form the garbage bearing side of the grate bar body.

8. The dynamic flow guiding type air-cooled grate bar according to claim 7, wherein The grate cover (102) includes an upper side surface of the cover body, a front side surface of the cover body, and a transition surface of the cover body connecting the upper side surface of the cover body and the front side surface of the cover body; The upper side surface of the cover body is in the same plane as the upper side surface of the grate plate body (101), and they jointly form the garbage-carrying side of the grate plate body; The front side surface of the cover body forms the end surface of the second end of the grate plate body, and the air outlet holes (1021) are arranged on the front side surface of the cover body.

9. The dynamic flow guiding type air-cooled grate bar according to claim 7, wherein, A first insertion body (1013) is arranged on the grate plate body (101), and a second insertion body (1022) that is inserted and matched with the first insertion body (1013) is arranged on the grate cover (102).

10. The dynamic flow guiding air-cooled grate bar according to claim 9, wherein, A wind guiding rib plate (1016) is arranged on the lower side of the grate plate body, and the wind guiding rib plate (1016) is located between the two wind guiding side plates (1015); The wind guiding rib plate (1016) includes a first rib plate part arranged on the grate plate body (101) and a second rib plate part arranged on the grate cover (102). When the grate cover (102) is installed on the grate plate body (101), the second rib plate part is butted against the first rib plate part; At least part of the second insertion body (1022) is arranged on the second rib plate part.

11. The dynamic flow guiding air-cooled grate bar according to any one of claims 1-10, characterized in that, It further includes a clamping plate (104). The clamping plate (104) is detachably arranged on the lower side of the grate plate body, and the clamping plate (104) and the clamping claws (1014) enclose a fixing groove for fixing the grate beam (200).

12. The dynamic flow guiding air-cooled grate bar according to claim 11, wherein The clamping plate (104) includes a first clamping plate part and a second clamping plate part. The first clamping plate part and the second clamping plate part are perpendicular. The first clamping plate part is detachably arranged on the lower side of the grate plate body. The second clamping plate part and the clamping claws (1014) enclose the fixing groove with a notch, and the width of the notch of the fixing groove is smaller than the diameter of the grate beam (200).

13. The dynamic diversion type air-cooled grate bar according to claim 11, wherein The clamping plates (104) of the dynamic flow guiding air-cooled grate plates in the same row are of an integral structure, or the clamping plates (104) of the dynamic flow guiding air-cooled grate plates in the same row are of a split structure that are independent of each other.

14. The dynamic flow guiding type air-cooled grate bar according to any one of claims 1-10, characterized in that, The air outlet holes (1021) include: A first air outlet hole section (10211) that slopes downward in the direction from the air inlet end to the air outlet end; A second air outlet hole section (10212) communicated with the first air outlet hole section (10211). The second air outlet hole section (10212) is communicated to the end surface of the second end of the grate plate body, and the extension direction of the upper side wall of the second air outlet hole section (10212) forms a first included angle with the horizontal plane, and the extension direction of the lower side wall of the second air outlet hole section (10212) forms a second included angle with the horizontal plane. The second included angle is greater than the first included angle.

15. An incinerator, characterized in that, It includes multiple rows of grate rows arranged in sequence along the conveying direction of the garbage. Each row of grate rows includes a plurality of dynamically flow-guided air-cooled grate plates (100) connected in sequence. The dynamically flow-guided air-cooled grate plates (100) are the dynamically flow-guided air-cooled grate plates (100) as described in any one of claims 1-14; One of any two adjacent rows of furnace rows is a fixed furnace row, and the other is a movable furnace row.

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