A slagging-off device for a grate garbage incinerator

Abstract

The utility model provides a kind of slagging-off equipment of grate refuse incinerator, it is related to the field of refuse incineration, including the material separation unit for screening material, the collecting unit for collecting large material is arranged in one side of the material separation unit, the air-locking extruding unit for extruding material is arranged in the bottom of the material separation unit;The utility model separates large block slag by material separation unit, and collecting unit can collect large block material, and then can solve the problem of large block slag blockage, can effectively reduce manual intervention treatment cost, reduce the security risk when manual intervention, air-locking extruding unit can prevent air from entering grate combustion area when closing, avoid affecting oxygen content control in furnace, and unburned refuse can be secondary combustion in auxiliary combustion cooling conveyor, reduce the pollution of unburned refuse to slag, and the resource waste of re-melting combustion, improve the environmental pollution problem of slag processing unit.

Description

Technical Field

[0001] This utility model belongs to the field of waste incineration, specifically a slag removal device for a grate waste incinerator. Background Technology

[0002] Among numerous waste treatment technologies, waste incineration has become the mainstream choice for urban household waste treatment due to its ability to achieve thorough harmless treatment, significant volume reduction, and potential energy recovery advantages. Among these technologies, grate waste incinerators are widely used due to their high-efficiency incineration capacity.

[0003] The existing grate-fired waste incinerator's combustion and slag removal system consists of a waste inlet, a hydraulic feeder, a drying zone, a main combustion zone, a burnout zone, a slag pit, a fine particle collection box, and a slag remover. Pre-treated waste first enters the hydraulic feeder and is then pushed onto the grate for combustion. A small amount of fine slag produced during combustion falls into the fine particle collection box through the grate gaps, and is ultimately cooled and transported away by the slag remover. The slag produced above the grate enters the slag remover through the slag pit for cooling and transport.

[0004] However, in actual use, due to the complex composition of the waste, some unburned waste falls directly into the slag pit. The slag pit's single function of slag discharge can easily lead to the unburned waste forming a "bridging" phenomenon at the bottom, which can cause blockages, affect the normal discharge of slag, seriously reduce the operating efficiency of the boiler system, and fail to improve the environment of the slag treatment unit.

[0005] In summary, this utility model provides a slag removal device for a grate waste incinerator to solve the above-mentioned problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A slag removal device for a grate waste incinerator, comprising:

[0008] A material separation unit for screening materials, a collection unit located on one side of the material separation unit for collecting large materials, an airlock extrusion unit located at the bottom of the material separation unit for extruding materials, a hydraulic slag pusher located at the bottom of the airlock extrusion unit for pushing slag, and an auxiliary combustion cooling conveyor located on one side of the hydraulic slag pusher for auxiliary combustion cooling of slag.

[0009] Furthermore, in this utility model, the material separation unit includes a trapezoidal slag pipe, a connecting box connected to one side of the trapezoidal slag pipe, infrared thermal imaging sensors disposed on both sides of the inner cavity of the trapezoidal slag pipe, a first hydraulic cylinder disposed on one side of the connecting box, a first push box fixedly connected to the output end of the first hydraulic cylinder and located in the inner cavity of the connecting box, and a grid screen plate fixedly connected to the lower end of the inner cavity of the trapezoidal slag pipe.

[0010] Furthermore, in this utility model, the airlock extrusion unit includes a processing box connected to the bottom of the trapezoidal slag pipe, airlock valves movably connected to both sides of the processing box via a rotating shaft, and an electro-hydraulic push rod disposed on both sides of the processing box with its output end movably connected to the airlock valve via a rotating shaft.

[0011] Furthermore, in this utility model, the hydraulic slag pushing unit includes a fixed box connected to the bottom of the processing box, a second oil cylinder disposed on one side of the fixed box, and a second push box fixedly connected to the output end of the second oil cylinder and located in the inner cavity of the fixed box.

[0012] Furthermore, in this utility model, the collection unit includes a collection box connected to one side of the trapezoidal slag pipe, and a box door that is hinged to one side of the collection box.

[0013] Furthermore, in this utility model, the fixed box is connected to the auxiliary combustion cooling conveyor, the upper end of one side of the auxiliary combustion cooling conveyor is connected to an exhaust pipe, and the lower end of one side of the auxiliary combustion cooling conveyor is connected to a cooling water inlet and outlet port.

[0014] Furthermore, in this utility model, a support plate is fixedly connected to one side of the bottom of the connecting box, and the top of the support plate is fixedly connected to the first oil cylinder. A bracket is fixedly connected to the bottom of the fixing box, and the bottom of the second oil cylinder is fixedly connected to the bracket.

[0015] Beneficial effects: This utility model has the following beneficial effects:

[0016] This invention forms a complete process chain through a material separation unit, a collection unit, an air-locking and extrusion unit, a hydraulic slag pushing unit, and an auxiliary combustion cooling conveyor. The material separation unit separates large pieces of slag, and the collection unit collects large pieces of material, thereby solving the problem of large slag blockage. It can effectively reduce the cost of manual intervention and lower the safety hazards when manual intervention is performed. When the air-locking and extrusion unit is closed, it can prevent air from entering the grate combustion area and avoid affecting the oxygen control in the furnace. Furthermore, unburned waste can be re-burned in the auxiliary combustion cooling conveyor, reducing the pollution of unburned waste to the slag and the waste of resources from re-burning in the furnace, thus improving the environmental pollution problem of slag treatment units. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the closed state structure of the airlock compression unit of this utility model;

[0019] Figure 3 This is a schematic diagram of the open state structure of the airlock compression unit of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the collection unit and the material separation unit of this utility model;

[0021] Figure 5 This is a schematic diagram of the hydraulic slag pushing unit structure of this utility model.

[0022] In the picture:

[0023] 100. Material separation unit; 110. Trapezoidal slag pipe; 120. Connecting box; 130. Infrared thermal imaging sensor; 140. First hydraulic cylinder; 150. First push box; 160. Grille screen; 200. Collection unit; 210. Collection box; 220. Box door; 300. Airlock extrusion unit; 310. Processing box; 320. Airlock valve; 330. Electro-hydraulic actuator; 400. Hydraulic slag pushing unit; 410. Fixing box; 420. Second hydraulic cylinder; 430. Second push box; 500. Auxiliary combustion cooling conveyor; 510. Exhaust pipe; 520. Cooling water inlet / outlet port. Detailed Implementation

[0024] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0025] Example 1

[0026] like Figure 1-5 As shown, this is the first embodiment of the present invention, which provides a slag discharge device for a grate waste incinerator, including...

[0027] The system includes a material separation unit 100 for screening materials, a collection unit 200 located on one side of the material separation unit 100 for collecting large materials, an airlock extrusion unit 300 located at the bottom of the material separation unit 100 for extruding materials, a hydraulic slag pushing unit 400 located at the bottom of the airlock extrusion unit 300 for pushing slag, and an auxiliary combustion cooling conveyor 500 located on one side of the hydraulic slag pushing unit 400 for auxiliary combustion cooling of slag.

[0028] like Figure 1-5 As shown, the material separation unit 100 achieves efficient screening of waste, effectively separating large unburned waste particles from small slag particles, which are then collected by the collection unit 200, avoiding blockage caused by unburned waste falling into the slag pit. The design of the air-locking extrusion unit 300 ensures that no gas leaks during the processing, preventing air from entering the grate combustion zone and affecting the oxygen control in the furnace. At the same time, the extrusion action further crushes the slag, facilitating subsequent processing. The hydraulic slag pushing unit 400 enables continuous discharge of slag, while the auxiliary combustion and cooling conveyor 500 performs auxiliary combustion and cooling treatment on the discharged slag, improving energy recovery efficiency and the working environment.

[0029] Example 2

[0030] Reference Figure 1-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] In this embodiment, the material separation unit 100 includes a trapezoidal slag pipe 110, a connecting box 120 connected to one side of the trapezoidal slag pipe 110, infrared thermal imaging sensors 130 disposed on both sides of the inner cavity of the trapezoidal slag pipe 110, a first hydraulic cylinder 140 disposed on one side of the connecting box 120, a first push box 150 fixedly connected to the output end of the first hydraulic cylinder 140 and located in the inner cavity of the connecting box 120, and a grid screen plate 160 fixedly connected to the lower end of the inner cavity of the trapezoidal slag pipe 110.

[0032] The airlock extrusion unit 300 includes a processing box 310 connected to the bottom of the trapezoidal slag pipe 110, airlock doors 320 movably connected to both sides of the processing box 310 via a rotating shaft, and an electro-hydraulic push rod 330 disposed on both sides of the processing box 310 and whose output end is movably connected to the airlock doors 320 via a rotating shaft.

[0033] The hydraulic slag pushing unit 400 includes a fixed box 410 connected to the bottom of the processing box 310, a second oil cylinder 420 disposed on one side of the fixed box 410, and a second push box 430 fixedly connected to the output end of the second oil cylinder 420 and located in the inner cavity of the fixed box 410.

[0034] like Figure 1-5As shown, the design of the trapezoidal slag pipe 110 and the grid screen plate 160 achieves efficient screening of waste, effectively separating large unburned waste particles from small slag particles, thus improving the efficiency of subsequent processing. The infrared thermal imaging sensor 130 enables the system to monitor in real time whether large waste particles are present on the grid screen plate 160, triggering the operation of the first hydraulic cylinder 140. The output of the first hydraulic cylinder 140 pushes the first push box 150, pushing the large unburned waste particles accumulated in the trapezoidal slag pipe 110 into the connecting box 120 for subsequent processing or collection. The processing box 310 is connected to the bottom of the trapezoidal slag pipe 110 to receive waste from the trapezoidal slag pipe 110. The slag falling from the slag pipe 110 is movably connected to both sides of the processing box 310 via a rotating shaft through a gas lock valve 320. Normally, it is in a closed state to prevent gas leakage. When slag needs to be processed, the electro-hydraulic actuator 330 operates, pushing the gas lock valve 320 open through the rotating shaft. The slag enters the processing box 310 for further processing. It is connected to the bottom of the processing box 310 through a fixed box 410 to receive the slag falling from the processing box 310. When the slag accumulates to a certain extent, the second hydraulic cylinder 420 operates, pushing the second pusher 430 to move within the fixed box 410, pushing the slag out of the fixed box 410 and into the subsequent auxiliary combustion cooling conveyor 500 for further processing.

[0035] Example 3

[0036] Reference Figure 1 , 4 5 and 6 are the third embodiment of this utility model, which is based on the first two embodiments.

[0037] In this embodiment, the collection unit 200 includes a collection box 210 connected to one side of the trapezoidal slag pipe 110, and a box door 220 that is hinged to one side of the collection box 210.

[0038] The fixed box 410 is connected to the auxiliary combustion cooling conveyor 500. The upper end of one side of the auxiliary combustion cooling conveyor 500 is connected to the exhaust pipe 510, and the lower end of one side of the auxiliary combustion cooling conveyor 500 is connected to the cooling water inlet and outlet port 520.

[0039] A support plate is fixedly connected to one side of the bottom of the connecting box 120, and the top of the support plate is fixedly connected to the first oil cylinder 140. A bracket is fixedly connected to the bottom of the fixing box 410, and the bottom of the second oil cylinder 420 is fixedly connected to the bracket.

[0040] like Figure 1 , 4As shown in Figure 5, the main function of the collection unit 200 is to collect large particles of unburned waste screened out of the trapezoidal slag pipe 110, preventing these wastes from entering subsequent processing steps and causing blockages or affecting the processing effect. Simultaneously, the door 220 is hinged to one side of the collection box 210, facilitating the opening and closing of the collection box 210 and enabling the cleaning and processing of the collected large particles of unburned waste. The auxiliary combustion cooling conveyor 500 is connected to the fixed box 410 to receive the slag pushed out of the fixed box 410 and further... The auxiliary combustion and cooling process further improves the combustion efficiency of the slag and recovers some energy, while cooling reduces the temperature of the slag, facilitating subsequent processing and transportation. The design of the exhaust pipe 510 and the cooling water inlet / outlet port 520 ensures the discharge of combustion gases and the circulation of cooling water, respectively, ensuring the normal operation of the auxiliary combustion cooling conveyor 500. A support plate is fixedly connected to one side of the bottom of the connecting box 120 and a bracket is fixedly connected to the bottom of the fixed box 410, respectively ensuring the stability of the first oil cylinder 140 and the second oil cylinder 420.

[0041] In operation, high-temperature slag first enters the trapezoidal slag pipe 110, which transports and guides the slag to the connecting box 120. The slag and large materials are screened by the grid screen 160 inside the connecting box 120, leaving large materials on the grid screen 160. At this point, the infrared thermal imaging sensor 130 identifies the slag material. If large pieces are present, the infrared thermal imaging sensor 130 is triggered, and the control system activates the first hydraulic cylinder 140 to push the first pusher box 150 into the collection box 210. Immediately afterwards, the slag screened by the grid screen 160 enters the processing box 310. At this time, the electro-hydraulic actuator 330 closes the airlock valve 320, causing the slag to accumulate and form a material seal, blocking air from entering the combustion zone. This prevents air from entering the grate combustion area and thus avoids affecting the furnace interior. Oxygen levels are controlled, and the slag is crushed by the airlock valve 320. Then, the electro-hydraulic actuator 330 opens the airlock valve 320, and the slag falls into the fixed box 410. Afterward, the second cylinder 420 drives the second pusher box 430 to push the slag to the auxiliary combustion cooling conveyor 500. The slag undergoes auxiliary combustion or cooling in the auxiliary combustion cooling conveyor 500. Unburned waste undergoes secondary oxidation inside, and the slag temperature is reduced to below 80°C through heat exchange. The heat of the slag is directly recovered through heat exchange, keeping the slag dry and facilitating subsequent transportation and utilization. After cooling, the slag is transported out, and the flue gas is reused through the exhaust pipe 510, realizing an energy closed loop. This completes the slag removal operation, greatly reducing the pollution of the slag by unburned waste and the resource waste of re-burning, and improving the environmental pollution problem of the slag treatment unit.

[0042] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0043] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A slag removal device for a grate waste incinerator, characterized in that: include A material separation unit (100) for screening materials, a collection unit (200) disposed on one side of the material separation unit (100) for collecting large materials, an airlock extrusion unit (300) disposed at the bottom of the material separation unit (100) for extruding materials, a hydraulic slag pusher unit (400) disposed at the bottom of the airlock extrusion unit (300) for pushing slag, and an auxiliary combustion cooling conveyor (500) disposed on one side of the hydraulic slag pusher unit (400) for auxiliary combustion cooling of slag.

2. The slag removal equipment of the grate waste incinerator as described in claim 1, characterized in that: The material separation unit (100) includes a trapezoidal slag pipe (110), a connecting box (120) connected to one side of the trapezoidal slag pipe (110), infrared thermal imaging sensors (130) disposed on both sides of the inner cavity of the trapezoidal slag pipe (110), a first hydraulic cylinder (140) disposed on one side of the connecting box (120), a first push box (150) fixedly connected to the output end of the first hydraulic cylinder (140) and located in the inner cavity of the connecting box (120), and a grid screen plate (160) fixedly connected to the lower end of the inner cavity of the trapezoidal slag pipe (110).

3. The slag removal equipment of the grate waste incinerator as described in claim 2, characterized in that: The airlock extrusion unit (300) includes a processing box (310) connected to the bottom of the trapezoidal slag pipe (110), airlock valves (320) movably connected to both sides of the processing box (310) via a rotating shaft, and an electro-hydraulic push rod (330) disposed on both sides of the processing box (310) and whose output end is movably connected to the airlock valves (320) via a rotating shaft.

4. The slag removal equipment of the grate waste incinerator as described in claim 3, characterized in that: The hydraulic slag pushing unit (400) includes a fixed box (410) connected to the bottom of the processing box (310), a second oil cylinder (420) disposed on one side of the fixed box (410), and a second push box (430) fixedly connected to the output end of the second oil cylinder (420) and located in the inner cavity of the fixed box (410).

5. The slag removal equipment of the grate waste incinerator as described in claim 4, characterized in that: The collection unit (200) includes a collection box (210) connected to one side of the trapezoidal slag pipe (110) and a box door (220) connected to one side of the collection box (210) by a hinge.

6. The slag removal equipment of the grate waste incinerator as described in claim 5, characterized in that: The fixed box (410) is connected to the auxiliary combustion cooling conveyor (500). The upper end of one side of the auxiliary combustion cooling conveyor (500) is connected to an exhaust pipe (510), and the lower end of one side of the auxiliary combustion cooling conveyor (500) is connected to a cooling water inlet / outlet port (520).

Images