Fire grate waste incineration system and bridge breaking device

Abstract

The utility model relates to a fire grate garbage incineration system and a bridge breaking device, the bridge breaking device is applied to a fire grate garbage incinerator, and the bridge breaking device comprises a bridge breaking mechanism; the bridge breaking mechanism comprises a fixed body, a movable push box and a driving mechanism; the fixing body is arranged on the side of a slag well of the fire grate garbage incinerator and communicates with the slag well. The movable push box is sleeved in the fixed body; the driving mechanism is connected with the movable push box and used for driving the movable push box to move in the cavity defined by the fixed body in the direction close to the slag well. The slag well bridging problem can be solved, the safety risk is reduced, manual intervention is reduced, and the overall treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage incineration, in particular to a grate garbage incineration system and a bridge breaking device. Background Art

[0002] Municipal solid waste is an inevitable byproduct of urbanization. With the rapid growth of urban population and the improvement of living standards, the output of solid waste continues to rise, causing serious pollution to the human living environment. The harmless treatment, reduction and resource recycling of solid waste have become a hot topic of global concern.

[0003] Among the many waste treatment technologies, waste incineration has become the mainstream choice for urban domestic waste treatment because of its ability to achieve complete harmless treatment, significant reduction effect and potential energy recovery advantages. Among them, grate waste incinerators are widely used due to their efficient incineration capacity.

[0004] Next, the grate waste incinerator in the prior art is described.

[0005] The incineration and slag removal system of the grate waste incinerator consists of a waste feed port, a hydraulic pusher, a drying area, a main combustion area, a burnout area, a slag well, a fine particle collection box, and a slag remover. The pre-treated waste first enters the hydraulic feeder and is then pushed onto the grate for incineration. A small amount of fine particle slag generated during the incineration process falls into the fine particle collection box through the grate gap, and is eventually cooled and transported out by the slag remover. The slag generated above the grate enters the slag remover through the slag well for cooling and transportation.

[0006] However, there are certain problems in the actual operation of the slag discharge system of the grate waste incinerator. Due to the complexity of the waste composition, some of the non-combustible waste cannot be evenly distributed in the drying area, main combustion area and burnout area after entering the furnace through the hydraulic feeder, but directly falls into the slag pit. The single slag discharge function of the slag pit causes the non-combustible waste to easily form a "bridge" phenomenon at the bottom of the slag pit, which in turn causes the slag pit to be blocked, affecting the normal discharge of the slag, and in severe cases even affecting the operating efficiency of the entire boiler system.

[0007] With current technology, when faced with this kind of bridge blockage problem, the common response measure is for workers to use tools to clear the slag door of the slag pit. Although this method can temporarily solve the problem, it has obvious safety hazards. When workers open the slag door and use tools to clear it, positive pressure may be triggered, and flames may spray out along the direction of the slag door, posing a threat to workers. Even if workers are wearing protective clothing, they may be injured due to slow reaction. In addition, this method of clearing is time-consuming and inefficient.

[0008] Therefore, the challenge facing technical personnel in this field is how to develop a safer and more efficient "bridge breaking" technology to solve the problem of bridging in slag wells, reduce safety risks, reduce manual intervention, and improve overall processing efficiency. Utility Model Content

[0009] The utility model aims to propose a grate garbage incineration system and a bridge breaking device, based on which the utility model can solve the problem of "bridging" in slag pits, reduce safety risks, reduce manual intervention, and improve overall processing efficiency.

[0010] In the first aspect, the utility model discloses a bridge-breaking device, which is applied to a grate waste incinerator, and the bridge-breaking device includes a bridge-breaking mechanism; the bridge-breaking mechanism includes a fixed body, a movable push box and a driving mechanism; the fixed body is arranged on the side of the slag pit of the grate waste incinerator and is connected to the slag pit; the movable push box is sleeved in the fixed body; the driving mechanism is connected to the movable push box, and is used to drive the movable push box to move in the cavity surrounded by the fixed body toward the direction close to the slag pit.

[0011] In the utility model, the fixed body serves as the supporting structure of the bridge breaking device and is fixed to the side of the slag shaft of the grate waste incinerator, ensuring that the movable push box can accurately enter the slag shaft and approach the blocked area, and providing a stable foundation for the entire bridge breaking mechanism; the driving mechanism can be executed by a hydraulic or electric system to provide the necessary power for the movable push box, so that the movable push box can obtain sufficient power to perform the breaking operation; the movable push box, as a movable component, can move within the fixed body, directly contact the blockage in the slag shaft and break it.

[0012] In actual applications, the operator or the automatic monitoring system identifies the blockage in the slag pit and, based on the identification result, starts the driving mechanism of the bridge-breaking device. The driving mechanism works to push the movable push box toward the blockage in the slag pit. The movable push box breaks or pushes the blockage through direct contact and force, thereby restoring the slag pit to a clear state.

[0013] Therefore, the utility model has the following technical advantages:

[0014] First, the bridge-breaking device avoids manual entry into high-temperature and harmful environments for dredging, thus reducing operational risks;

[0015] Second, it reduces production interruptions and manual unblocking costs caused by blockages, thus improving economic benefits;

[0016] Third, the design and operation process of the bridge breaking device should ensure rapid response and efficient breaking, reducing the downtime of the grate waste incinerator.

[0017] The bridge breaking device according to the embodiment of the utility model further comprises a cooling mechanism; the cooling mechanism is connected to the fixed body and the movable push box respectively. The cooling mechanism is used to cool the fixed body and the movable push box.

[0018] The utility model bridge breaking device adds a cooling mechanism, which is connected with the fixed body and the movable push box, so that the cooling mechanism cools the fixed body and the movable push box to adapt to the high temperature environment. Therefore, the utility model can further prevent the equipment from being damaged by high temperature and improve the stability and service life of the equipment.

[0019] According to the bridge breaking device of the embodiment of the utility model, the cooling mechanism includes a first cooling unit, which is used to cool down the fixed body; the first cooling unit includes a fixed body water chamber; the fixed body water chamber is connected to the fixed body; the fixed body water chamber is provided with a first cold water inlet and a first hot water outlet; the first cold water inlet is provided with a first cold water inlet valve; a gap is provided between the fixed body and the movable push box; the first hot water outlet is connected to the gap.

[0020] In the cooling mechanism of the bridge breaking device of the utility model, cooling water enters the water chamber through the first cold water inlet and is discharged through the gap to form a cooling cycle, which effectively reduces the temperature of the fixed body and maintains the performance of the equipment.

[0021] According to the bridge breaking device of the embodiment of the utility model, the cooling mechanism includes a second cooling unit for cooling the movable push box; the second cooling unit includes a second cold water inlet, a cooling pipeline arranged in the movable push box and a second hot water outlet; a second cold water inlet valve is arranged at the second cold water inlet; the second hot water outlet is arranged at the water level of the hot water outlet of the movable push box; cold water enters the cooling pipeline through the second cold water inlet valve, and when the water level rises to the second hot water outlet, it automatically flows into the gap arranged between the fixed body and the movable push box and then is discharged.

[0022] In the second cooling unit of the bridge breaking device of the utility model, cooling water enters the cooling pipeline through the second cold water inlet and is discharged through the gap to form a cooling cycle, thereby cooling the movable push box to prevent the normal operation of the movable push box from being affected by high temperature.

[0023] According to the bridge breaking device of the embodiment of the utility model, the bridge breaking mechanism also includes a guide portion; the guide portion extends along one side of the slag pit toward the fixed body to the outside of the movable push box, and is used to ensure that the movable push box reaches the blocking position of the slag pit along a linear motion trajectory.

[0024] In the bridge breaking device of the utility model, the guide part ensures that the movable push box reaches the blocking position along a straight line motion trajectory, thereby improving the bridge breaking efficiency and ensuring accurate unblocking of the blockage.

[0025] According to the bridge breaking device of the embodiment of the utility model, the center line of the guide portion forms an angle of 50-60 degrees with the horizontal direction.

[0026] In the bridge breaking device of the utility model, the center line of the guide part is designed to be at an angle of 50-60 degrees with the horizontal direction, which helps the movable push box to reach the blocked area more effectively, optimizes the movement trajectory of the movable push box, and improves the bridge breaking efficiency.

[0027] According to the bridge breaking device of the embodiment of the utility model, the driving mechanism includes: a hydraulic cylinder; a piston assembly in the hydraulic cylinder is mechanically connected to the movable push box, and the piston assembly provides power for reciprocating motion for the movable push box; the hydraulic cylinder is fixed by a cylinder bracket.

[0028] In the bridge breaking device of the utility model, the hydraulic oil cylinder provides power to make the movable push box perform reciprocating motion, thereby realizing power drive of the movable push box and improving the bridge breaking capability.

[0029] According to the bridge breaking device of the embodiment of the utility model, the bridge breaking mechanism also includes a manual fixing part, and the manual fixing part is used to fix the position of the movable push box at a non-slag dredging operation node.

[0030] The utility model adopts a manual fixing part to fix the movable push box at the non-operating node to prevent accidental movement, thereby ensuring the safety of operation and preventing the equipment from being damaged in the non-operating state.

[0031] According to the bridge breaking device of the embodiment of the utility model, a friction wheel is further provided between the movable push box and the fixed body, which is used for the auxiliary movable push box to slide relative to the surface of the fixed body.

[0032] The utility model provides a friction wheel between the movable push box and the fixed body, and the friction wheel assists the movable push box to slide on the surface of the fixed body, thereby reducing the friction resistance between the movable push box and the fixed body and improving the mechanical efficiency.

[0033] In a second aspect, the present invention further discloses a grate waste incineration system, comprising:

[0034] A grate waste incinerator; the grate waste incinerator is provided with a waste feed port, a waste pusher, a combustion zone, a slag pit, and a fine particle collection box in sequence; the crushed waste falls into the waste pusher through the waste feed port; the waste pusher is used to push the waste to the combustion zone for incineration to generate granular slag and furnace slag; the granular slag falls into the fine particle collection box through the grate gap in the combustion zone; the furnace slag enters the slag pit located at the grate outlet; and the system further comprises a bridge breaking device as described in any of the above items, which is arranged on the side of the slag pit and is connected to the slag pit

[0035] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a structural schematic diagram of an embodiment of the utility model grate waste incineration system;

[0038] Figure 2 It is a structural block diagram of an embodiment of the bridge breaking device of the utility model;

[0039] Figure 3 This is a structural block diagram of a cooling mechanism in an embodiment of the bridge breaking device of the utility model;

[0040] Figure 4A This is one of the schematic diagrams of the structure of the embodiment of the bridge breaking device of the utility model;

[0041] Figure 4B This is the second schematic diagram of the structure of the bridge breaking device embodiment of the utility model.

[0042] Reference numerals:

[0043] 1 Garbage inlet;

[0044] 2. Garbage pusher;

[0045] 3 Drying area;

[0046] 4 Main combustion zone;

[0047] 5 Burn-out area;

[0048] 6 slag well;

[0049] 7 Fine particle collection box;

[0050] 8. Slag remover;

[0051] 9 Slag

[0052] 10 Bridge-breaking Device

[0053] 101 Bridge Breaking Agency

[0054] 1011 fixed body

[0055] 1012 Activity Push Box

[0056] 1013 Driving mechanism

[0057] 102 Cooling mechanism

[0058] 1021 First Cooling Unit

[0059] 10211 Fixed body water chamber

[0060] 1022 Second Cooling Unit

[0061] 11 Friction wheel

[0062] 12 Hydraulic Cylinder

[0063] 13 Manual fixing part

[0064] 14 Cylinder bracket

[0065] 15 Oil inlet pipe high pressure ball valve

[0066] 16 Oil outlet pipe high pressure ball valve

[0067] A1 First cold water inlet

[0068] A11 First cold water inlet valve

[0069] A2 First hot water outlet

[0070] B1 Second cold water inlet

[0071] B11 Second cold water inlet valve

[0072] B2 Cooling line

[0073] B3 Second hot water outlet DETAILED DESCRIPTION

[0074] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0075] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0076] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0077] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0078] Combine the following Figure 1 , Figure 2 , Figure 3 , Figure 4A and Figure 4B The grate waste incineration system of the embodiment of the utility model is described.

[0079] Reference Figure 1 , Figure 1 It is a structural schematic diagram of a grate waste incineration system according to an embodiment of the utility model.

[0080] The grate waste incineration system of the present embodiment includes a grate waste incinerator, which includes a waste feed port 1, a waste pusher 2, a drying area 3, a main combustion area 4, a combustion clean area 5, a slag well 6, a fine particle collection box 7, and a slag scoop 8 which are connected in sequence; the original waste enters the waste feed port 1 after being crushed, and falls into the waste pusher 2 below it, and the waste pusher 2 pushes the waste onto the grate to start burning; a small amount of small particle slag produced by the combustion directly falls into the fine particle collection box 7 through the gap of the grate, and then falls into the slag scoop 8 to be cooled and transported out, and the slag 9 produced by the combustion above the grate enters the slag scoop 8 through the slag well 6 located at the grate outlet to be cooled and transported out.

[0081] In order to reduce manual workload and safety hazards, the grate waste incineration system of this embodiment is equipped with a bridge breaking device 10 on one side of the slag pit 6. When a bridge is found in the slag pit 6 during operation, the bridge breaking device 10 of the slag pit is activated.

[0082] Reference Figure 2 , Figure 2 A schematic structural diagram of an embodiment of a bridge breaking device in an embodiment of the utility model is shown.

[0083] In this embodiment, the bridge-breaking device 10 includes a bridge-breaking mechanism 101; the bridge-breaking mechanism 101 includes a fixed body 1011, a movable push box 1012 and a driving mechanism 1013; the fixed body 1011 is arranged on the side of the slag pit of the grate waste incinerator and is connected to the slag pit; the movable push box 1012 is sleeved in the fixed body 1011; the driving mechanism 1013 is connected to the movable push box 1012, and is used to drive the movable push box 1012 to move in the cavity surrounded by the fixed body 1011 toward the direction close to the slag pit.

[0084] The driving mechanism 1013 may be a hydraulic driving mechanism or an electric driving mechanism or other driving forms, and the present invention is not limited thereto. For example, in one embodiment, the driving mechanism includes: a hydraulic cylinder; a piston assembly in the hydraulic cylinder is mechanically connected to the movable push box, and the piston assembly provides reciprocating power for the movable push box; and the hydraulic cylinder can be fixed by a cylinder bracket.

[0085] If the driving mechanism 1013 is driven by hydraulic pressure, the bridge breaking mechanism 101 can also be provided with a manual fixing part, which is used to fix the position of the movable push box at the non-slag dredging operation node. Therefore, at the non-operation node, that is, when the movable push box 1012 is not needed to break the obstruction, the manual fixing part is used to fix the movable push box, which can prevent the piston rod of the hydraulic oil cylinder from moving accidentally, ensure the operation safety, and prevent the equipment from being damaged in the non-operation state.

[0086] It can be seen that in this embodiment, the fixed body 1011 serves as the supporting structure of the bridge breaking device 10 and is fixed to the side of the slag shaft of the grate waste incinerator, ensuring that the movable push box 1012 can accurately enter the slag shaft and approach the blocked area, and provide a stable foundation for the entire bridge breaking mechanism 101; the driving mechanism 1013 can be executed by a hydraulic or electric system to provide the necessary power for the movable push box 1012, so that the movable push box can obtain sufficient power to perform the breaking operation; the movable push box 1012, as a movable component, can move within the fixed body, directly contact and break the blockage in the slag shaft.

[0087] In actual applications, the operator or the automatic monitoring system identifies the blockage in the slag pit, and based on the identification result, the driving mechanism 1013 of the bridge breaking device 10 is started. The driving mechanism 1013 starts to work and pushes the movable push box toward the blockage in the slag pit. The movable push box breaks or pushes the blockage through direct contact and force, thereby restoring the slag pit to a clear state.

[0088] Therefore, it can be seen from the above analysis that the embodiments of the present utility model have the following technical advantages:

[0089] First, the bridge-breaking device avoids manual entry into high-temperature and harmful environments for dredging, thus reducing operational risks;

[0090] Second, it reduces production interruptions and manual unblocking costs caused by blockages, thus improving economic benefits;

[0091] Third, the design and operation process of the bridge breaking device should ensure rapid response and efficient breaking, reducing the downtime of the grate waste incinerator.

[0092] In a preferred embodiment, a friction wheel 11 is further provided between the movable push box 1012 and the fixed body 1011 to assist the movable push box in sliding relative to the surface of the fixed body, thereby reducing the friction resistance between the movable push box and the fixed body and improving mechanical efficiency.

[0093] In another preferred embodiment, the bridge breaking mechanism further includes a guide portion (not shown); the guide portion extends along one side of the slag pit toward the fixed body to the outside of the movable push box, and is used to ensure that the movable push box reaches the blocked position of the slag pit along a linear motion trajectory. In practical applications, the guide portion ensures that the movable push box reaches the blocked position along a linear motion trajectory, thereby improving the bridge breaking efficiency and ensuring accurate unblocking of the blockage.

[0094] More preferably, the center line of the guide portion forms an angle of 50-60 degrees with the horizontal direction, which helps the movable push box to reach the blocked area more effectively, optimizes the movement trajectory of the movable push box, and improves the bridge breaking efficiency.

[0095] It should be pointed out that when the grate waste incinerator is in operation, the slag pit is at a high temperature of about 500° for a long time. In order to ensure that the bridge breaking device can operate safely and stably under high temperature, in a preferred embodiment, the fixed body 1011 of the bridge breaking device 10 can be further provided with a cooling mechanism 102, so that the overall system, especially the bridge breaking device 10, can further prevent the equipment from being damaged due to high temperature, thereby improving the stability and service life of the equipment.

[0096] In a preferred embodiment, referring to Figure 3The cooling mechanism 102 may include a first cooling unit 1021 and a second cooling unit 1022. The first cooling unit 1021 is used to cool the fixed body 1011; the second cooling unit 1022 is used to cool the movable push box 1012.

[0097] The implementation of the bridge breaking device 10 of the present invention is further described below by using an example.

[0098] Reference Figure 4A and Figure 4B .

[0099] in, Figure 4A This is one of the schematic diagrams of the structure of the embodiment of the bridge breaking device of the utility model; Figure 4B This is the second schematic diagram of the structure of the bridge breaking device embodiment of the utility model. Figure 4A and Figure 4B The structure and working principle of the bridge breaking device of this embodiment are illustrated.

[0100] In this embodiment, the bridge breaking device includes a bridge breaking mechanism. The bridge breaking mechanism includes a fixed body 1011, a movable push box 1012, and a hydraulic cylinder 12 as a driving mechanism. The piston assembly in the hydraulic cylinder 12 is mechanically connected to the movable push box 1012, and the piston assembly provides reciprocating power to the movable push box 1012, driving the movable push box 1012 to move in the cavity surrounded by the fixed body 1011 toward the direction close to the slag pit. In addition, the hydraulic cylinder 12 can be fixed by a cylinder bracket 14.

[0101] In this embodiment, the bridge breaking mechanism may also be provided with a manual fixing part 13, which is used to fix the position of the movable push box 1012 at a non-slag dredging operation node. Therefore, at a non-operation node, that is, when the movable push box 1012 is not needed to break the obstruction, the manual fixing part 13 is used to fix the movable push box 1012, which can prevent the piston rod of the hydraulic cylinder 12 from moving accidentally, ensure the safety of operation, and prevent damage to the equipment in the non-operation state.

[0102] It can be seen that in this embodiment, the fixed body 1011 serves as the supporting structure of the bridge breaking device and is fixed to the side of the slag pit of the grate waste incinerator, ensuring that the movable push box 1012 can accurately enter the slag pit and approach the blocked area, and provide a stable foundation for the entire bridge breaking mechanism; the hydraulic cylinder 12 provides the necessary power for the movable push box 1012, so that the movable push box 1012 can obtain sufficient power to perform the breaking operation; the movable push box 1012, as a movable component, can move within the fixed body, directly contact and break the blockage in the slag pit.

[0103] Furthermore, as mentioned above, when the grate waste incinerator is in operation, the slag pit is at a high temperature of about 500° for a long time. In order to ensure that the above-mentioned bridge breaking device can operate safely and stably under high temperature, the bridge breaking device in this embodiment may be further provided with a cooling mechanism so that the overall system, especially the bridge breaking device, can further prevent the equipment from being damaged due to high temperature, thereby improving the stability and service life of the equipment.

[0104] Refer again Figure 4A and Figure 4B , wherein the cooling mechanism in this embodiment is further a first cooling unit and a second cooling unit. They are described as follows.

[0105] The first cooling unit 1021 includes a fixed body water chamber 10211; the fixed body water chamber 10211 is connected to the fixed body 1011; the fixed body water chamber 10211 is provided with a first cold water inlet A1 and a first hot water outlet A2; the first cold water inlet A1 is provided with a first cold water inlet valve A11; a gap is provided between the fixed body 1011 and the movable push box 1012; the first hot water outlet A2 is connected to the gap.

[0106] It can be seen that by setting up the first cooling unit, cooling water enters the water chamber through the first cold water inlet and is discharged through the gap, forming a cooling cycle, effectively reducing the temperature of the fixed body and maintaining equipment performance.

[0107] The second cooling unit 1022 is used to cool down the movable push box 1012; the second cooling unit 1022 includes a second cold water inlet B1, a cooling pipeline B2 arranged in the movable push box 1012, and a second hot water outlet B3; a second cold water inlet valve B11 is arranged at the second cold water inlet B1; the second hot water outlet B3 is arranged at the water level of the hot water outlet of the movable push box 1012; cold water enters the cooling pipeline through the second cold water inlet valve B11, and when the water level rises to the second hot water outlet, it automatically flows into the gap arranged between the fixed body and the movable push box and then is discharged.

[0108] Similarly, in this embodiment, cooling water enters the cooling pipeline B2 through the second cold water inlet B1 and is discharged through the gap to form a cooling cycle, thereby completing the cooling of the movable push box to prevent its normal operation from being affected by high temperature.

[0109] During the operation of the grate incinerator, in order to ensure the stability and safety of the equipment, the utility model adopts a cooling and unblocking system. Combined with the working principle of this embodiment, this embodiment is further described as follows:

[0110] 1. Unblocking Mechanism

[0111] When the slag well is blocked by bridges, the operation process is as follows:

[0112] First, open the manual fixing part 13 of the hydraulic water-cooled bridge-breaking device of the slag well;

[0113] Next, open the hydraulic oil inlet pipe high pressure ball valve 15 and the hydraulic oil outlet pipe high pressure ball valve 16. At this time, the movable push box 1012 inside the water-cooled bridge breaking device will automatically push down, and then return manually, repeating this reciprocating action one to three times until it returns to its original position.

[0114] Finally, close the oil inlet pipe high pressure ball valve 15 and the oil outlet pipe high pressure ball valve 16, and the unblocking work is completed.

[0115] Through the above operations, not only can the slag well blockage problem be dealt with quickly, but the continuity and reliability of boiler operation can also be significantly improved.

[0116] (II) Cooling mechanism

[0117] When the grate incinerator is started, the first cold water inlet valve A11 is opened first, which is arranged at the first cold water inlet A1 of the fixed body water chamber 10211, so that the cooling water flows through the fixed body water chamber 10211, and enters the gap between the fixed body 1011 and the movable push box 1012 through the first hot water outlet A2, and finally flows to the slag scoop for discharge.

[0118] At the same time, the second cold water inlet valve B11 of the movable push box 1012 is also opened, and cold water flows through the cooling pipe B2 of the movable push box 1012 to reach the bottom of the movable push box 1012. When the water level rises to the second hot water outlet B3 of the movable push box 1012, hot water automatically flows into the gap between the fixed body 1011 and the movable push box 1012, and is finally discharged through the slag scooping machine.

[0119] The above process realizes comprehensive cooling of the fixed body 1011 and the movable push box 1012 .

[0120] The introduction of the bridge-breaking device in this embodiment can effectively clear the blocked area in a short time, greatly reducing the workload and safety risks of manual clearing, while also shortening the boiler's ignition time and improving the efficiency of the boiler incinerating garbage. More importantly, the device can also prevent the high temperature of the slag well from being transmitted to the hydraulic cylinder and the cylinder bracket, ensuring the stable operation of the fixed body and the movable push box of the bridge-breaking device.

[0121] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A bridge breaking device, characterized in that: Applied to a grate waste incinerator, the bridge breaking device comprises: Bridge-breaking mechanism; The bridge breaking mechanism comprises a fixed body, a movable push box and a driving mechanism; The fixed body is arranged on the side of the slag pit of the grate waste incinerator and is connected with the slag pit; The movable push box is sleeved in the fixed body; The driving mechanism is connected to the movable push box and is used to drive the movable push box to move in the cavity surrounded by the fixed body toward the direction approaching the slag pit.

2. The bridge breaking device according to claim 1, characterized in that: The bridge breaking device also includes: Cooling mechanism; The cooling mechanism is connected to the fixed body and the movable push box respectively; The cooling mechanism is used to cool the fixed body and the movable push box.

3. The bridge breaking device according to claim 2, characterized in that: The cooling mechanism comprises a first cooling unit for cooling the fixed body; The first cooling unit includes a fixed body water chamber; The fixed body water chamber is connected to the fixed body; The fixed body water chamber is provided with a first cold water inlet and a first hot water outlet; The first cold water inlet is provided with a first cold water inlet valve; A gap is provided between the fixed body and the movable push box; The first hot water outlet is communicated with the gap.

4. The bridge breaking device according to claim 3, characterized in that: The cooling mechanism includes a second cooling unit for cooling the movable push box; The second cooling unit includes a second cold water inlet, a cooling pipeline arranged in the movable push box, and a second hot water outlet; A second cold water inlet valve is provided at the second cold water inlet; The second hot water outlet is arranged at the water level of the hot water outlet of the movable push box; Cold water enters the cooling pipeline through the second cold water inlet valve, and when the water level rises to the second hot water outlet, it automatically flows into the gap set between the fixed body and the movable push box and then is discharged.

5. The bridge breaking device according to claim 1, characterized in that: The bridge breaking mechanism also includes: Guide part; The guide portion extends along one side of the slag pit toward the fixed body to the outside of the movable push box, so as to ensure that the movable push box reaches the blocking position of the slag pit along a linear motion trajectory.

6. The bridge breaking device according to claim 5, characterized in that: The center line of the guide portion forms an angle of 50-60 degrees with the horizontal direction.

7. The bridge breaking device according to claim 1, characterized in that: The driving mechanism comprises: Hydraulic cylinder; The piston assembly in the hydraulic oil cylinder is mechanically connected to the movable push box, and the piston assembly provides power for reciprocating motion for the movable push box; The hydraulic cylinder is fixed by a cylinder bracket.

8. The bridge-breaking device according to claim 1, characterized in that: The bridge-breaking mechanism also includes a manual fixing part, which is used to fix the position of the movable push box at a non-slag dredging operation node.

9. The bridge breaking device according to claim 1, characterized in that: A friction wheel is further provided between the movable push box and the fixed body, and the friction wheel is used to assist the movable push box to slide relative to the surface of the fixed body.

10. A grate waste incineration system, comprising: grate waste incinerator; The grate waste incinerator is provided with a waste feed inlet, a waste pusher, a combustion area, a slag well, and a fine particle collection box in sequence; After the garbage is crushed, it falls into the garbage pusher through the garbage feeding port; The garbage pusher is used to push the garbage to the combustion zone for incineration to generate granular slag and furnace slag; The granular slag falls into the fine particle collection box through the grate gap of the combustion zone; The slag enters the slag well located at the grate outlet; It is characterized in that the system also includes a bridge breaking device as described in any one of claims 1 to 9, which is arranged on the side of the slag pit and is connected to the slag pit.

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