Dynamic flow guide type air-cooled grate plate and incinerator

Abstract

The application discloses a dynamic flow guide type air-cooled grate piece and an incinerator. The incinerator comprises a grate piece body, the upper side of the grate piece body is a garbage bearing side, the lower side of the grate piece body is provided with a wind guide side plate, the first end of the grate piece body is provided with a clamping jaw for supporting a grate beam, and the second end of the grate piece body is provided with an air outlet hole. A flow guide device is arranged on the lower side of the grate piece body, the flow guide device surrounds a main air inlet channel, the main air inlet channel is an inclined channel, and the main air inlet channel gradually approaches the second end of the grate piece body from the lower side to the upper side of the grate piece body. The dynamic flow guide type air-cooled grate piece provided by the application can make the primary air close to the garbage bearing side of the grate piece body due to the flow guide device, and the cooling effect of the upper high-temperature combustion area of the grate piece body is improved.

Description

Technical Field

[0001] This application relates to the field of incinerator technology, and more specifically, to a dynamic flow-guided air-cooled grate and incinerator. Background Technology

[0002] With the continuous increase in municipal solid waste, mechanical grate incinerators, with their strong adaptability to waste and reliable operation, have gradually become the dominant type of municipal solid waste incineration.

[0003] Mechanical grate incinerators mainly consist of a drying section, a combustion section, and a burnout section along the waste conveying direction. The grate bars (including moving and fixed grate bars) are a key component of the incinerator, playing a crucial role in the waste incineration process. The grate bars form a support platform that holds the waste, allowing it to move orderly within the incinerator, gradually advancing from the feed end to the discharge end, ensuring the continuity of the entire incineration process. Through the movement of the grate bars, the waste is agitated and tumbled, allowing for full contact between the waste and air, promoting uniform heating, thereby improving combustion efficiency and ensuring more complete combustion.

[0004] Grate bars operate in high-temperature environments. If heat dissipation is ineffective, the temperature of the grate bars will continue to rise. Excessive temperatures will reduce the strength of the grate bar material, leading to deformation or even damage, affecting the normal operation and service life of the grate bars. Active cooling using forced ventilation is a commonly used cooling method for grate bars. This involves introducing air around the grate bars through a ventilation system. When the air comes into contact with the hot grate bars, it absorbs heat, rises in temperature, and carries it away, thus achieving heat dissipation.

[0005] Most grate bars currently improve cooling efficiency by setting air guide ribs. The extension direction of the air guide ribs is parallel to the length direction of the grate bars, so that the cooling air flows from one end of the grate bars to the other end, achieving heat exchange with the grate bars. However, the improvement in cooling efficiency by setting air guide ribs is limited.

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

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

[0008] Another objective of this application is to provide an incinerator having the aforementioned dynamically guided air-cooled grate.

[0009] To achieve the above objectives, this application provides the following technical solution:

[0010] The first aspect of this application provides a dynamic flow-guided air-cooled grate, comprising:

[0011] The grate body has a waste-bearing side on its upper side and an air guide plate on its lower side. The first end of the grate body has a claw for supporting the grate beam, and the second end of the grate body has an air outlet.

[0012] A flow guiding device is disposed on the lower side of the grate plate body. The flow guiding device forms 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 plate body, the main air inlet channel gradually approaches the second end of the grate plate body.

[0013] In one possible implementation, an auxiliary air intake channel is formed between the flow guiding device and the first end of the grate plate body;

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

[0015] When the dynamic flow-guided air-cooled grate is in the second relative position, the flow-guided device of the dynamic flow-guided air-cooled grate is offset from the dynamic flow-guided air-cooled grate on the lower side.

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

[0017] In one possible implementation, the flow guiding device is a cylindrical structure, and the two side plates of the flow guiding device are respectively fixed to the two air guiding side plates by fasteners.

[0018] In one possible implementation, a guide rib is provided on the lower side of the grate plate body, and the guide rib is located between the two guide side plates;

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

[0020] In one possible implementation, one end of the airflow guiding device abuts against the airflow guide plate.

[0021] In one possible implementation, the ventilation area on the air intake side of the main air intake channel is larger than the ventilation area on the air outlet side of the main air intake channel.

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

[0023] The grate body, the air guide side plate, the flow guiding device and the claw are all located on the grate body. Two adjacent dynamic flow guiding air-cooled grate plates are connected by a grate plate connector. The grate plate connector is used to connect the air guide side plates of two adjacent grate plates. The upper part of the second end of the grate body has a load-bearing notch that allows the grate plate connector to be exposed.

[0024] A grate cover is detachably mounted on the grate plate body to close the load-bearing gap, such that the upper side of the grate cover and the upper side of the grate plate body form the waste-bearing side of the grate plate body.

[0025] In one possible implementation, the grate cover includes an upper side surface of the cover, a front side surface of the cover, and a transition surface of the cover connecting the upper side surface of the cover and the front side surface of the cover.

[0026] The upper side of the cover and the upper side of the grate body are on the same plane and together form the waste-bearing side of the grate body.

[0027] The front side of the cover forms the end face of the second end of the grate plate body, and the air outlet is provided on the front side of the cover.

[0028] In one possible implementation, the grate plate body is provided with a first plug-in body, and the grate cover is provided with a second plug-in body that plugs into and engages with the first plug-in body.

[0029] In one possible implementation, a guide rib is provided on the lower side of the grate plate body, and the guide rib is located between the two guide side plates;

[0030] The air guide rib includes a first rib portion disposed on the grate plate body and a second rib portion disposed on the grate cover. When the grate cover is installed on the grate plate body, the second rib portion is connected to the first rib portion.

[0031] At least a portion of the second connector is disposed on the second stiffener portion.

[0032] In one possible implementation, a retaining plate is also included, which is detachably disposed on the underside of the grate plate body, and the retaining plate and the retaining claws form a fixing groove for fixing the grate beam.

[0033] In one possible implementation, the clamping plate 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 to each other, the first clamping plate portion is detachably disposed on the lower side of the grate plate body, and the second clamping plate portion and the clamping claw form a fixing groove with a notch, the width of the notch of the fixing groove being smaller than the diameter of the grate beam.

[0034] In one possible implementation, the clamping plates of the dynamic flow-guided air-cooled grate bars in the same row are an integral structure, or the clamping plates of the dynamic flow-guided air-cooled grate bars in the same row are independent separate structures.

[0035] In one possible implementation, the air outlet includes:

[0036] The first air outlet section slopes downwards from the air inlet to the air outlet.

[0037] The second air outlet section is connected to the first air outlet section, and the second air outlet section is connected to the end face of the second end of the grate plate body. The angle between the extension direction of the upper sidewall of the second air outlet section and the horizontal plane is the first angle, and the angle between the extension direction of the lower sidewall of the second air outlet section and the horizontal plane is the second angle. The second angle is greater than the first angle.

[0038] The dynamic flow-guided air-cooled grate provided in this application adds a flow-guided device to the traditional grate. This device is located on the lower side of the grate body. Since the primary air of the incinerator is below the grate, placing the flow-guided device on the lower side of the grate body guides the primary air flowing through it. The flow-guided device forms a main air inlet channel, which is an inclined channel. The inclined arrangement of the main air inlet channel makes it easier for the primary air to enter and flow along the extension direction of the main air inlet channel to the lower side of the grate body. It then flows along the lower side of the grate body towards the second end of the grate body until it exits through the air outlet. Because of the flow-guided device, the dynamic flow-guided air-cooled grate provided in this application allows the primary air to be closer to the waste-bearing side of the grate body, improving the cooling effect on the upper high-temperature combustion zone of the grate body.

[0039] The second aspect of this application provides an incinerator, including multiple rows of grate bars arranged sequentially along the waste conveying direction, each row of grate bars including multiple dynamically guided air-cooled grates connected sequentially, the dynamically guided air-cooled grates being the dynamically guided air-cooled grates as described in any of the preceding claims.

[0040] In any two adjacent rows of furnaces, one row is a fixed furnace row and the other row is a movable furnace row.

[0041] The incinerator provided in this application has all the technical effects of the aforementioned dynamic flow-guided air-cooled grate, which will not be repeated here. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the grate assembly disclosed in the embodiments of this application;

[0044] Figure 2 This is a front view of the movable grate bars disclosed in the embodiments of this application when they are in the retracted position;

[0045] Figure 3 This is a front view of the movable grate bars disclosed in the embodiments of this application when they are in the forward position;

[0046] Figure 4 This is an exploded view of the dynamic flow-guided air-cooled grate disclosed in an embodiment of this application at one angle;

[0047] Figure 5 This is an exploded view of the dynamic flow-guided air-cooled grate disclosed in an embodiment of this application from another angle;

[0048] Figure 6 This is a schematic diagram of the dynamic flow-guided air-cooled grate disclosed in an embodiment of this application at a certain angle.

[0049] Figure 7 This is a schematic diagram of the dynamic flow-guided air-cooled grate disclosed in an embodiment of this application from another angle.

[0050] Figure 8 This is a front view of the dynamic flow-guided air-cooled furnace grate disclosed in an embodiment of this application;

[0051] Figure 9 This is a partial cross-sectional view of the dynamic flow-guided air-cooled grate at the air outlet of the embodiment of this application;

[0052] Figure 10 This is a schematic diagram of the structure of multiple grate bars in the same row supported on a grate beam, as disclosed in an embodiment of this application.

[0053] Figure 11 This is a simulated airflow effect diagram of the grate bars in the forward position as disclosed in the embodiments of this application;

[0054] Figure 12 This is a simulated airflow effect diagram of the grate bars in the retracted position as disclosed in the embodiments of this application;

[0055] Figure 13 This is a simulated airflow effect diagram of a traditional grate.

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

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

[0058] 200-grate beam. Detailed Implementation

[0059] This application discloses a dynamic flow-guided air-cooled grate to improve the cooling effect;

[0060] This application also discloses an incinerator having the above-mentioned dynamic flow-guided air-cooled grate.

[0061] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the application as described in the claims. Additionally, the complete composition represented in the embodiments below is not limited to what is necessary as the solution to the application described in the claims. It should be noted that, for ease of description, only the parts relevant to the application are shown in the drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0062] like Figure 1 As shown in the embodiment of this application, the dynamic flow-guided air-cooled grate 100 includes a grate body and a flow-guided device 103. The upper side of the grate body is the waste-bearing side, which can support the waste and allow it to move orderly within the incinerator.

[0063] like Figure 4 and Figure 5 As shown, the grate body has an air guide plate 1015 on its lower side. There are generally two air guide plates 1015, located on both sides of the grate body, so that the grate body has a box structure to improve the structural strength of the grate body and prevent deformation of the waste bearing side.

[0064] The grate body has a first end and a second end at its two ends along the waste conveying direction. The first end of the grate body has a claw 1014 for supporting the grate beam 200. The claw 1014 is generally a downward-opening groove structure into which the grate beam 200 is placed to support the dynamically guided air-cooled grate. Typically, along the width of the incinerator, one grate beam 200 supports multiple dynamically guided air-cooled grate bars, forming a row of grate bars. Along the waste conveying direction, there are multiple rows of grate bars. Usually, along the waste conveying direction, fixed grates and moving grates are arranged alternately, i.e., one row of fixed grates and one row of moving grates.

[0065] The second end of the grate bar body has an air outlet 1021. The primary air flows in the direction from the first end to the second end of the grate bar body. The primary air will eventually flow out of the grate bar body through the air outlet 1021, thereby carrying away the temperature of the dynamic flow-guided air-cooled grate bar 100 and achieving a cooling effect.

[0066] The flow guiding device 103 is located on the lower side of the grate body, forming a main air inlet channel. This main air inlet channel is an inclined channel, gradually approaching the second end of the grate body from the lower to the upper side. Specifically, the lower side of the main air inlet channel is closer to the first end of the grate body, and the upper side is closer to the second end. Since the primary air flows from the first to the second end of the grate body on the dynamic flow-guided air-cooled grate 100, the primary air can enter the main air inlet channel from the lower side and exit from the upper side. This means the flow guiding device 103 can guide the primary air to the upper surface of the grate body, bringing it closer to the waste-bearing side and achieving a better cooling effect.

[0067] The dynamic flow-guided air-cooled grate 100 disclosed in this application adds a flow-guided device 103 to the traditional grate. This flow-guided device 103 is located on the lower side of the grate body. Since the primary air of the incinerator is below the dynamic flow-guided air-cooled grate 100, placing the flow-guided device 103 on the lower side of the grate body guides the primary air flowing through it. The flow-guided device 103 forms a main air inlet channel, which is an inclined channel. This inclined arrangement allows the primary air to more easily enter the main air inlet channel and flow along its extension direction to the lower side of the grate body. From there, it flows towards the second end of the grate body until it exits through the air outlet. The dynamic flow-guided air-cooled grate 100 disclosed in this application embodiment has a flow-guided device 103, which allows the primary air to be close to the waste-bearing side of the grate body, thereby improving the cooling effect on the upper high-temperature combustion zone of the grate body.

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

[0069] like Figure 2 and Figure 3 As shown, the dynamic flow-guided air-cooled grate 100 includes a first relative position and a second relative position. When the dynamic flow-guided air-cooled grate is in the first relative position, the flow-guiding device 103 of the dynamic flow-guided air-cooled grate is blocked by the lower dynamic flow-guided air-cooled grate. When the dynamic flow-guided air-cooled grate is in the second relative position, the flow-guiding device 103 of the dynamic flow-guided air-cooled grate is offset from the lower dynamic flow-guided air-cooled grate. Figure 2 Of the three dynamically guided air-cooled grates 100 shown, the middle one is in the second relative position, and the upper one is in the first relative position. Figure 3 Of the three dynamically guided air-cooled grates 100 shown, the middle dynamically guided air-cooled grates 100 are in the first relative position, and the upper dynamically guided air-cooled grates 100 are in the second relative position.

[0070] Figure 2 and Figure 3 In the illustrated scheme, the centrally located dynamic air-cooled grate 100 is a movable grate, while the upper and lower dynamic air-cooled grate 100s are fixed grate. When the movable grate moves back and forth, it will change its own position and also change the position of the adjacent upper fixed grate.

[0071] When the dynamic flow-guided air-cooled grate is in the first relative position and the second relative position, the auxiliary air inlet channel of the dynamic flow-guided air-cooled grate is staggered from the lower dynamic flow-guided air-cooled grate. That is, because the auxiliary air inlet channel is located on the side close to the first end of the grate body, the moving grate will not be blocked by the lower dynamic flow-guided air-cooled grate 100 when it moves back and forth.

[0072] by Figure 2 and Figure 3 From the perspective of the dynamic flow-guided air-cooled grate located in the middle, when it is in the forward position ( Figure 3The flow guiding device 103 of the middle dynamic flow guiding air-cooled grate is located above the first end of the lower dynamic flow guiding air-cooled grate. Under this condition, the middle dynamic flow guiding air-cooled grate allows primary air to enter the top of the grate body from the auxiliary air inlet channel between the flow guiding device 103 and the first end of the grate (see...). Figure 2 (The arrow in the image) can cool the entire exposed combustion zone of the dynamically guided air-cooled grate located in the middle.

[0073] When the dynamic flow-guided air-cooled grate in the middle is in the retracted position ( Figure 2 The flow guiding device 103 of the dynamic flow guiding type air-cooled grate located in the middle is unobstructed. Under this condition, the primary air can directly enter the top of the grate body from the flow guiding device 103 (see...). Figure Two The arrow in the diagram indicates that the combustion zone above the grate is cooled. This design improves the cooling effect of the combustion zone above the dynamically guided air-cooled grate under different operating conditions.

[0074] In this embodiment, the reciprocating movement of the movable grate plates changes their positional relationship with the fixed grate plates on the upper and lower sides, thereby giving the dynamically guided air-cooled grate plates a first relative position and a second relative position. For example, when one of the movable grate plates moves to the rearward position, the movable grate plate is in the second relative position, while the fixed grate plate above the movable grate plate is in the first relative position (e.g., Figure 3 As shown); when one of the movable grate bars moves to the forward position, the movable grate bar is in the first relative position, while the fixed grate bar above the movable grate bar is in the second relative position (as shown). Figure 11 (As shown). When the dynamic flow-guided air-cooled grate is in the first relative position and the second relative position, its flow-guiding device 103 can switch between being blocked by the dynamic flow-guided air-cooled grate below and not being blocked. The flow-guiding device 103 moves with the grate and automatically adjusts the air duct distribution, which can enhance targeted cooling of high-temperature areas and improve the cooling effect of the combustion area above the dynamic flow-guided air-cooled grate under different operating conditions.

[0075] Taking the dynamically guided air-cooled grate located in the middle as the analysis object, such as Figure 12As shown, the middle dynamic flow-guided air-cooled grate is in the forward position, i.e., in the first relative position. Its flow-guiding device 103 is blocked by the dynamic flow-guided air-cooled grate below, preventing primary air from entering 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. The primary air entering through the auxiliary air inlet channel is also guided by the inclined side wall of the flow-guiding device 103, and is guided to the top of the grate body to cool the combustion area at the top of the grate body. Since the auxiliary air inlet channel is located behind the main air inlet channel, and the middle dynamic flow-guided air-cooled grate is in the forward position, a large area at its top cannot be blocked by the dynamic flow-guided air-cooled grate above it. Therefore, the primary air enters through the auxiliary air inlet channel, which can exchange heat on all exposed areas of the middle grate that cannot be blocked by the grate above.

[0076] like Figure 13 As shown, the middle dynamic-flow guided air-cooled grate is in a retracted position, i.e., in the second relative position. Its guiding device 103 can avoid the lower dynamic-flow guided air-cooled grate, allowing primary air to enter through the main air inlet channel of the guiding device 103. Since the main air inlet channel is an inclined channel, the sidewall of the guiding device 103 is also inclined. This makes the inlet area of ​​the auxiliary air inlet channel smaller than the outlet area, so primary air is less likely to enter the auxiliary air inlet channel. Based on this, when the dynamic-flow guided air-cooled grate is in the retracted position, primary air enters the main air inlet channel more easily, resulting in a large amount of primary air entering the main air inlet channel. The primary air is guided to the top of the grate body to cool the combustion zone at the top of the grate body. Since the main air intake channel is located in front of the auxiliary air intake channel, and the dynamic flow-guided air-cooled grate in the middle is in the rear position, the rear area of ​​its top is blocked by the grate above it. Therefore, the primary air enters through the main air intake channel and can exchange heat on the exposed area of ​​the middle grate that cannot be blocked by the grate above, thus achieving a better heat exchange effect.

[0077] When the position of the dynamically guided air-cooled grate changes, the exposed area at the top of the grate is different, and the exposed area has a higher temperature than the shielded area. In this embodiment, the flow guiding device 103 is shielded and unshielded by the grate below, so that the primary air can only exchange heat on the exposed area at the top of the dynamically guided air-cooled grate, which can achieve a better cooling effect.

[0078] like Figure 13 As shown, Figure 4 The diagram shows the primary airflow of a grate bar without a flow guide device 103. It can be seen that after the primary air enters the grate bar area, it cannot get close to the top of the grate bar, so the heat exchange effect is poor. Moreover, the primary air exchanges heat with both the exposed area and the shielded area on 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 this application, the flow guiding device 103 is a cylindrical structure. Combined with the shape of the grate plate 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] The two side plates of the flow guiding device 103 are respectively fixed to the two air guiding side plates 1015 by fasteners. Figure 7 As shown, a first mounting hole 1012 is provided on the air guide side plate 1015, and a second mounting hole is provided on the corresponding side plate of the flow guiding device 103. Fixing members pass through the first mounting hole 1012 and the second mounting hole respectively for fixation, achieving the effect of fixing the flow guiding device 103 to the air guide side plate 1015. In this embodiment, the flow guiding device 103 and the grate plate body are detachably connected, allowing the grate plate body and the flow guiding device 103 to be manufactured separately and then assembled, reducing manufacturing difficulty.

[0081] like Figures 2-6 As shown, in this embodiment, a guide rib plate 1016 is provided on the lower side of the grate body, and the guide rib plate 1016 is located between two guide side plates 1015. Those skilled in the art can set the number of guide rib plates 1016 according to requirements. Each guide rib plate 1016 and the guide side plate 1015 can be arranged in parallel and extend along the direction from the first end to the second end of the grate body, that is, along the flow direction of the primary air, so that a guiding air channel is formed between the guide rib plates 1016 and between the guide rib plates 1016 and the guide side plates 1015, which increases the heat exchange area, improves the heat exchange efficiency of the dynamic guide air-cooled grate, and also enhances the overall support strength of the dynamic guide air-cooled grate.

[0082] The height of the air guide rib plate 1016 is lower than the height of the air guide side plate 1015. The air guide device 103 protrudes beyond the air guide side plate 1015 to facilitate the entry of primary airflow into the air guide device 103. The airflow from the air guide device 103 can directly enter the air guide duct between the air guide rib plates 1016 and between the air guide rib plates 1016 and the air guide side plate 1015, and flow along the air guide duct.

[0083] One end of the flow guiding device 103 can abut against the air guide rib plate 1016. When the flow guiding device 103 abuts against the air guide rib plate 1016, the distance from the outlet end of the flow guiding device 103 to the top plate surface of the grate body is the height of the air guide rib plate 1016. Therefore, the distance between the flow guiding device 103 and the top plate surface of the grate body can be controlled by the height of the air guide rib plate 1016, thereby controlling the degree to which the primary airflow is close to the top plate surface of the grate body.

[0084] In one specific embodiment of this application, the ventilation area on the air inlet side of the main air inlet duct is larger than the ventilation area on the air outlet side of the main air inlet duct. That is, the main air inlet duct can be a conical air duct, and the area on the air inlet side is larger than the area on the air outlet side. This arrangement allows for a larger air intake volume in the main air inlet duct. It should be noted that the main air inlet duct can also be designed as a channel with a constant cross-section, that is, the cross-sectional area is equal at all positions along the air intake direction.

[0085] like Figure 4 As shown, in a specific embodiment of this application, the grate plate body includes a grate plate body 101 and a grate cover 102, that is, in this embodiment, the grate plate body is divided into two parts.

[0086] The grate body 101 is the main part of the grate plate body. The air guide side plate 1015, the flow guiding device 103, and the claw 1014 are all located on the grate body 101. Two adjacent dynamic flow guiding air-cooled grates are connected by grate plate connectors, which are used to connect the air guide side plates 1015 of two adjacent dynamic flow guiding air-cooled grates. Grate plate fixing holes 1011 are provided on the air guide side plate 1015 for the grate plate connectors to pass through. Taking three dynamic flow guiding air-cooled grates as an example, the three dynamically flow guiding air-cooled grates arranged sequentially in the same row are defined as the first grate plate, the second grate plate, and the third grate plate, respectively. The air guide plate 1015 on the left side of the second grate is arranged adjacent to the air guide plate 1015 on the right side of the first grate and is connected and fixed by the grate plate connector. The air guide plate 1015 on the right side of the second grate is arranged adjacent to the air guide plate 1015 on the left side of the third grate and is connected and fixed by the grate plate connector.

[0087] Because the top surface of the grate body is the waste-bearing surface, which obstructs the grate connecting parts, when one of the dynamic flow-guided air-cooled grate bars is damaged and needs to be replaced, the grate connecting parts cannot be removed because they are blocked by the waste-bearing surface on the top of the grate body. Therefore, the entire row of grate bars needs to be removed together, and then the entire row of grate bars needs to be flipped up so that the bottom faces upwards outside the furnace body, so that the grate connecting parts are exposed, before the damaged dynamic flow-guided air-cooled grate bar can be removed and replaced. This reduces the efficiency of the dynamic flow-guided air-cooled grate bars.

[0088] Based on this, in this embodiment, a bearing notch is provided at the upper part of the second end of the grate plate body 101, which allows the grate plate connector to be exposed. The grate cover 102 is detachably disposed on the grate plate body 101 to close the bearing notch, so that the upper side of the grate cover 102 and the upper side of the grate plate body 101 form the waste bearing side of the grate plate body.

[0089] When one of the dynamic flow-guided air-cooled grates is damaged and needs replacement, simply remove the grate cover 102 of that grate. This exposes the grate connectors that connect to the grate through the bearing notch. The operator can then remove the corresponding grate connector through the bearing notch, thus disconnecting the damaged grate from the surrounding grates. This allows for individual removal of the damaged grate, improving replacement efficiency.

[0090] In this embodiment, the grate cover 102 includes an upper side surface, a front side surface, and a transition surface connecting the upper side surface and the front side surface. The upper side surface and the front side surface may be perpendicular, and the transition surface is at an obtuse angle to both the upper side surface and the front side surface.

[0091] The upper side of the cover and the upper side of the grate body 101 are on the same plane and together form the waste-bearing side of the grate body. The front side of the cover forms the end face of the second end of the grate body, and an air outlet 1021 is provided on the front side of the cover. The number of air outlets 1021 can be multiple, and the specific number can be designed by those skilled in the art according to requirements.

[0092] The grate cover 102 can be snapped onto the grate plate body 101. Specifically, the grate plate body 101 is provided with a first insertion body 1013, and the grate cover 102 is provided with a second insertion body 1022 that engages with the first insertion body 1013. The first insertion body 1013 and the second insertion body 1022 are engaged in a one-to-one correspondence. There can be multiple first insertion bodies 1013 and second insertion bodies 1022, distributed in multiple positions, to improve the reliability of the grate cover 102 installation.

[0093] One of the first connector 1013 and the second connector 1022 can be a plate and the other can be a hole. The plate is inserted into the hole to fix the grate cover 102. Figure 8 In the illustrated scheme, there are three first plug-in bodies 1013 and three second plug-in bodies 1022. Taking the first plug-in body 1013 as a plug hole and the second plug-in body 1022 as a plug plate as an example, plug plates are provided at both ends of the grate cover 102. Therefore, plug holes need to be provided at the corresponding positions of the grate plate body 101. When the corresponding position does not meet the conditions for opening a plug hole, a mounting base can be added and a plug hole can be opened on the mounting base.

[0094] Furthermore, a guide rib plate 1016 is provided on the lower side of the grate plate body, and the guide rib plate 1016 is located between the two guide side plates 1015. The guide rib plate 1016 includes a first rib plate portion provided on the grate plate body 101 and a second rib plate portion provided on the grate cover 102. When the grate cover 102 is installed on the grate plate body 101, the second rib plate portion is connected to the first rib plate portion to form a continuous guide rib plate 1016.

[0095] At least a portion of the second connector 1022 is disposed on the second rib plate portion; of course, all the second connectors 1022 may also be disposed on the corresponding second rib plate portions. In this embodiment, by disposing of the second connectors 1022 on the second rib plate portion, the height of the second rib plate portion can be utilized, thereby reducing the material used for the second connectors 1022 and lowering manufacturing costs.

[0096] like Figure 10 and Figure 7 As shown in a specific embodiment of this application, the dynamic flow-guided air-cooled grate may further include a retaining plate 104. The retaining plate 104 is detachably disposed on the lower side of the grate body, and the retaining plate 104 and the retaining claw 1014 form a fixing groove for fixing the grate beam 200. By relying on the cooperation between the retaining plate 104 and the retaining claw 1014 at the first end of the dynamic flow-guided air-cooled grate, it can be ensured that the dynamic flow-guided air-cooled grate 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 to each other, so that the first clamping plate portion and the second clamping plate of the clamping plate 104 have an L-shaped structure. The first clamping plate portion is detachably disposed on the lower side of the grate plate body. Specifically, snap-fit ​​members can be provided on both sides of the first clamping plate portion, and a slot 1017 (e.g., ...) can be opened on the air guide rib plate 1016 on the lower side of the grate plate body. Figure 9 As shown, the first clamping plate portion engages with the clamping parts on both sides of its sides, which then engage with the grooves 1017 of the two adjacent air guide plates 1016, thereby fixing the clamping plate 104 onto the grate plate body. It should be noted that the fixing method of the first clamping plate portion disclosed in the above embodiment is only an example. Those skilled in the art can choose other fixing methods according to their needs, such as fastener fixing, pin fixing, etc. This embodiment does not limit the fixing method of the first clamping plate portion.

[0098] After the first clamping plate is fixed on the grate body, the second clamping plate and the claw 1014 form a fixing groove with a notch. The width of the notch in the fixing groove is smaller than the diameter of the grate beam 200, preventing the grate beam 200 from detaching through the notch. The second clamping plate is located on the underside of the grate beam 200. By setting the clamping plate 104, the dynamic flow-guided air-cooled grate cannot detach from the grate beam 200 without removing the clamping plate 104. When it is necessary to remove the corresponding dynamic flow-guided air-cooled grate, the clamping plate 104 corresponding to that dynamic flow-guided air-cooled grate must first be removed, so that the width of the notch in the fixing groove is larger than the diameter of the grate beam 200, allowing the corresponding dynamic flow-guided air-cooled grate to be removed.

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

[0100] When the clamping plates 104 corresponding to each dynamic flow-guided air-cooled grate in the same row are integrated, even if some of the clamping plates 104 of the dynamic flow-guided air-cooled grate fall off, they can be restrained by other normally fixed clamping plates 104 and kept in a fixed position, thus improving the safety of the dynamic flow-guided air-cooled grate.

[0101] When the card plates 104 corresponding to each dynamic flow-guided air-cooled grate in the same row are independent of each other, it is convenient to disassemble a certain dynamic flow-guided air-cooled grate. That is, only the card plate 104 corresponding to the dynamic flow-guided air-cooled grate needs to be disassembled to realize the disassembly of the dynamic flow-guided air-cooled grate, without having to disassemble the entire row of card plates 104, thus improving the disassembly efficiency.

[0102] like ​ As shown in a specific embodiment of this application, the air outlet 1021 includes a first air outlet section 10211 and a second air outlet section 10212. The first air outlet section 10211 slopes downwards from the air inlet end to the air outlet end. The second air outlet section 10212 communicates with the first air outlet section 10211 and extends to the end face of the second end of the grate plate body, thus forming the air outlet end of the air outlet 1021.

[0103] The angle between the extension direction of the upper sidewall of the second air outlet section 10212 and the horizontal plane is a first angle α, and the angle between the extension direction of the lower sidewall of the second air outlet section 10212 and the horizontal plane is a second angle β, where the second angle β is greater than the first angle α. This means the lower side of the second air outlet section 10212 has a greater downward slope, making the outlet end of the air outlet 1021 teardrop-shaped. Because the entire structure is tilted downwards along the airflow direction, and given the greater downward slope of the lower side of the outlet end of the air outlet 1021, the air outlet 1021 is less prone to ash blockage. This structure of the air outlet 1021 facilitates the outflow of cooling air from inside the dynamically guided air-cooled grate, while also preventing external ash and slag from entering the dynamically guided air-cooled grate.

[0104] This application also discloses an incinerator, which includes multiple rows of grate bars arranged sequentially along the waste conveying direction. Each row of grate bars includes multiple dynamically guided air-cooled grate bars 100 connected sequentially. The dynamically guided air-cooled grate bars 100 are the same as those disclosed in the above embodiments. One row of two adjacent grate bars is a fixed grate bar, and the other row is a movable grate bar. The incinerator disclosed in this application, having the aforementioned dynamically guided air-cooled grate bars 100, possesses all the technical effects of the aforementioned dynamically guided air-cooled grate bars 100, which will not be elaborated upon here.

[0105] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0106] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0107] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0108] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A dynamic flow-guided air-cooled grate, characterized in that, include: The grate body has an upper side that is a waste-bearing side and a lower side that has an air guide plate (1015). The first end of the grate body has a claw (1014) for supporting the grate beam (200), and the second end of the grate body has an air outlet (1021). A flow guiding device (103) is disposed on the lower side of the grate body. The flow guiding device (103) forms a main air intake channel. The main air intake channel is an inclined channel. From the lower side to the upper side of the grate body, the main air intake channel gradually approaches the second end of the grate body. An auxiliary air intake channel is formed between the flow guiding device (103) and the first end of the grate body. The dynamic flow-guided air-cooled grate includes a first relative position and a second relative position. When the dynamic flow-guided air-cooled grate is in the first relative position, the flow-guided device (103) of the dynamic flow-guided air-cooled grate is blocked by the lower dynamic flow-guided air-cooled grate. When the dynamic flow-guided air-cooled grate is in the second relative position, the flow-guided device (103) of the dynamic flow-guided air-cooled grate is offset from the dynamic flow-guided air-cooled grate on the lower side. When the dynamic flow-guided air-cooled grate is in the first relative position and the second relative position, the auxiliary air inlet channel of the dynamic flow-guided air-cooled grate is staggered from the lower dynamic flow-guided air-cooled grate.

2. The dynamic flow-guided air-cooled grate as described in claim 1, characterized in that, The flow guiding device (103) has a cylindrical structure, and the two side plates of the flow guiding device (103) are respectively fixed to the two air guiding side plates (1015) by fasteners.

3. The dynamic flow-guided air-cooled grate as described in claim 2, characterized in that, A guide rib plate (1016) is provided on the lower side of the grate plate body, and the guide rib plate (1016) is located between the two guide side plates (1015). The height of the air guide rib plate (1016) is lower than the height of the air guide side plate (1015), and the air guide device (103) protrudes beyond the air guide side plate (1015).

4. The dynamic flow-guided air-cooled grate as described in claim 3, characterized in that, One end of the flow guiding device (103) abuts against the air guide rib plate (1016).

5. The dynamic flow-guided air-cooled grate as described in claim 1, characterized in that, The ventilation area on the air intake side of the main air intake channel is larger than the ventilation area on the air outlet side of the main air intake channel.

6. The dynamic flow-guided air-cooled grate as described in claim 1, characterized in that, The grate bar body includes: The grate body (101), the air guide side plate (1015), the flow guiding device (103) and the claw (1014) are all located on the grate body (101). Two adjacent dynamic flow guiding air-cooled grate bars are connected by grate bar connectors. The grate bar connectors are used to connect the air guide side plates (1015) of two adjacent grate bars. The upper part of the second end of the grate body (101) has a bearing notch that allows the grate bar connectors to be exposed. A grate cover (102) is detachably disposed on the grate plate body (101) to close the load-bearing gap, such that the upper side of the grate cover (102) and the upper side of the grate plate body (101) form the waste-bearing side of the grate plate body.

7. The dynamic flow-guided air-cooled grate as described in claim 6, characterized in that, The grate cover (102) includes an upper side surface of the cover, a front side surface of the cover, and a transition surface of the cover connecting the upper side surface of the cover and the front side surface of the cover; The upper side of the cover and the upper side of the grate body (101) are located on the same plane and together form the waste-bearing side of the grate body. The front side of the cover forms the end face of the second end of the grate plate body, and the air outlet (1021) is provided on the front side of the cover.

8. The dynamic flow-guided air-cooled grate as described in claim 6, characterized in that, The grate body (101) is provided with a first plug-in body (1013), and the grate cover (102) is provided with a second plug-in body (1022) that is plugged into and cooperates with the first plug-in body (1013).

9. The dynamic flow-guided air-cooled grate as described in claim 8, characterized in that, A guide rib plate (1016) is provided on the lower side of the grate plate body, and the guide rib plate (1016) is located between the two guide side plates (1015). The air guide rib plate (1016) includes a first rib plate portion disposed on the grate plate body (101) and a second rib plate portion disposed on the grate cover (102). When the grate cover (102) is installed on the grate plate body (101), the second rib plate portion is connected to the first rib plate portion. At least a portion of the second connector (1022) is disposed on the second stiffener portion.

10. The dynamic flow-guided air-cooled grate as described in any one of claims 1-9, characterized in that, It also includes a card plate (104), which is detachably disposed on the lower side of the grate plate body, and the card plate (104) and the claw (1014) form a fixing groove for fixing the grate beam (200).

11. The dynamic flow-guided air-cooled grate as described in claim 10, characterized in that, The card plate (104) includes a first card plate portion and a second card plate portion, the first card plate portion and the second card plate portion are perpendicular to each other, the first card plate portion is detachably disposed on the lower side of the grate plate body, the second card plate portion and the card claw (1014) form 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).

12. The dynamic flow-guided air-cooled grate as described in claim 10, characterized in that, The clamping plates (104) of the dynamic flow-guided air-cooled grate bars in the same row are an integral structure, or the clamping plates (104) of the dynamic flow-guided air-cooled grate bars in the same row are independent separate structures.

13. The dynamic flow-guided air-cooled grate as described in any one of claims 1-9, characterized in that, The air outlet (1021) includes: The first air outlet section (10211) slopes downward from the air inlet to the air outlet. A second air outlet section (10212) is connected to the first air outlet section (10211). The second air outlet section (10212) is connected to the end face of the second end of the grate plate body. The angle between the extension direction of the upper sidewall of the second air outlet section (10212) and the horizontal plane is a first angle, and the angle between the extension direction of the lower sidewall of the second air outlet section (10212) and the horizontal plane is a second angle. The second angle is greater than the first angle.

14. An incinerator, characterized in that, It includes multiple rows of grate bars arranged sequentially along the waste conveying direction, each row of grate bars including multiple dynamically guided air-cooled grate bars (100) connected in sequence, wherein the dynamically guided air-cooled grate bars (100) are as described in any one of claims 1-13. In any two adjacent rows of furnaces, one row is a fixed furnace row and the other row is a movable furnace row.

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