Dry-type slag extractor assembly
By introducing a detection module and an automatic spraying system in the dry slag discharge machine, the problem of dust accumulation in the steel strip scraper cannot be transported and manual spraying is uneven, efficient and precise spraying of the cleaning chain is achieved, and labor intensity and safety risks are reduced.
Patent Information
- Application Number
- CN202421969169.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-14
AI Technical Summary
In the existing dry slag discharge machines, the accumulation of dust caused by the gap between the steel strip scraper and the bottom plate cannot be transported, and manual spraying has problems such as uneven spraying volume, high labor intensity and safety hazards.
The detection module is used to detect the ash accumulation height of the cleaning chain. The controller controls the spraying mechanism to automatically spray, including first- and second-level spray components, and sprays the cleaning chain from the upper and lower directions to achieve accurate spraying of the ash accumulation on the upper and lower layers.
It improves the cleaning efficiency of the cleaning chain, reduces the risk of excessive spraying, reduces labor intensity and safety hazards, and improves the spraying effect.
Smart Images
Figure CN223090678U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of dry slag conveyors, and more particularly, to a dry slag conveyor assembly. Background Art
[0002] The cleaning chain of a dry slag conveyor uses a steel belt as both a traction component and a load-bearing component to collect and transport ash slag. During operation, the steel belt drive device drives the drive roller to rotate, and the steel belt runs by the friction force between the drive roller and the steel belt. The ash slag that falls from the boiler cold ash hopper onto the steel belt moves together with the steel belt, and the structure of the steel belt can absorb the impact force generated by the ash slag falling.
[0003] However, since there is a certain gap between the scraper of the steel belt and the bottom plate, the ash accumulation under the scraper cannot be transported by the scraper and can only be transported by the negative pressure of the boiler with ash.
[0004] In order to improve the cleaning ability of the cleaning chain, in the related art, generally, water is manually sprayed onto the cleaning chain of the slag conveyor to improve the adhesion of the ash slag and increase the carrying capacity per unit time of the cleaning chain. However, the manual spraying amount depends entirely on subjective judgment, and excessive spraying amount may lead to serious water accumulation and blockage of the slag crusher. On the other hand, manual spraying also has a large labor intensity and safety hazards. Utility Model Content
[0005] The purpose of the present disclosure is to provide a dry slag conveyor assembly to solve the technical problems existing in the related art.
[0006] To achieve the above object, the present disclosure provides a dry slag conveyor assembly, including a slag conveyor main body, a cleaning chain, a spraying mechanism, a controller, and a detection module. The spraying mechanism is used to spray water onto the cleaning chain, and the detection module is used to detect the height of the ash accumulation on the cleaning chain.
[0007] The spraying mechanism includes:
[0008] A main water pipe connected to a water supply mechanism;
[0009] A primary spraying assembly, including a primary spraying pipe and a primary spraying section. One end of the primary spraying pipe is connected to the main water pipe, the other end of the primary spraying pipe extends upward and is connected to the primary spraying section, and the primary spraying section is located above the cleaning chain.
[0010] A secondary spraying assembly, including a secondary spraying pipe and a secondary spraying section. One end of the secondary spraying pipe is connected to the main water pipe, the other end of the secondary spraying pipe extends upward and is connected to the secondary spraying section, and the secondary spraying section is located above the primary spraying section.
[0011] A plurality of spray holes are formed on both the first-stage spray section and the second-stage spray section, and the plurality of spray holes are arranged at intervals along the length directions of the first-stage spray section and the second-stage spray section;
[0012] A first-stage on-off valve, which is arranged on the first-stage spray pipe;
[0013] A second-stage on-off valve, which is arranged on the second-stage spray pipe;
[0014] The controller is respectively in signal connection with the first-stage on-off valve, the second-stage on-off valve and the detection module.
[0015] Optionally, the first-stage spray assembly includes two first-stage spray sections, both of the two first-stage spray sections are communicated with the first-stage spray pipe, and the two first-stage spray sections are arranged at intervals in the up-down direction;
[0016] The second-stage spray assembly includes two second-stage spray sections, both of the two second-stage spray sections are communicated with the second-stage spray pipe, and the two second-stage spray sections are arranged at intervals in the up-down direction.
[0017] Optionally, the dry slag discharger assembly further includes a fastening mechanism, the fastening mechanism includes a plurality of support beams and a plurality of fasteners, one end of each support beam is connected to the side wall of the slag discharger main body, and the other end of each support beam is fastened to the spray mechanism through the fasteners.
[0018] Optionally, the spray mechanism further includes an automatic exhaust valve, and the automatic exhaust valve is communicated with the first-stage spray pipe or the second-stage spray pipe.
[0019] Optionally, the automatic exhaust valve is communicated with the second-stage spray pipe and is located at the highest point of the second-stage spray pipe.
[0020] Optionally, the distance between the first-stage spray section and the cleaning chain ≥ 10 cm;
[0021] The distance between the second-stage spray section and the cleaning chain ≥ 10 cm.
[0022] Optionally, the second-stage spray pipe is communicated with the main water pipe through the first-stage spray pipe.
[0023] Optionally, the spray mechanism further includes a plurality of drain valves, the first-stage spray assembly is connected to one drain valve, and the second-stage spray assembly is connected to another drain valve.
[0024] Optionally, the spray mechanism further includes a connecting water pipe, one end of the connecting water pipe is communicated with the first-stage spray pipe, and the other end of the connecting water pipe is communicated with the second-stage spray pipe.
[0025] Optionally, the spraying area of the first-stage spraying section does not completely overlap with the spraying area of the second-stage spraying section.
[0026] Through the above technical solution, when the detection module detects that the ash accumulation height on the cleaning chain reaches a certain level, it can send the collected ash accumulation height signal to the controller. At this time, the controller can control the opening of the first switching valve and / or the second switching valve. In this way, the water in the water supply mechanism will be sprayed from top to bottom onto the relatively lower cleaning chain through the first-stage spray pipe and the first-stage spraying section. Similarly, the water in the water supply mechanism can also be sprayed onto the relatively higher cleaning chain through the second-stage spray pipe and the second-stage spraying section of the second-stage spraying assembly, so as to realize the spraying of the ash accumulation on the upper and lower layers of the cleaning chain, achieve the purpose of increasing the adhesiveness of the ash accumulation, facilitate the cleaning of the ash accumulation by the cleaning chain, and moreover, in the above process, there is no need for the spraying personnel to manually spray the ash accumulation on the cleaning chain. On the one hand, it can avoid the problem of excessive spraying caused by the subjective judgment error of the spraying personnel. On the other hand, it can also reduce the labor intensity and safety hazards of the spraying personnel, and the spraying of the ash accumulation is more accurate and efficient.
[0027] Moreover, since the above first-stage spraying section and second-stage spraying section are at different heights, when spraying the cleaning chain, the upper and lower layers of the cleaning chain can be sprayed simultaneously, further improving the spraying effect.
[0028] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. Brief Description of the Drawings
[0029] The drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:
[0030] Figure 1 is a schematic diagram of a dry slag discharge machine assembly provided by an exemplary embodiment of the present disclosure;
[0031] Figure 2 is a schematic connection diagram between the controller, the detection module, the first switching valve, and the second switching valve of the dry slag discharge machine assembly provided by an exemplary embodiment of the present disclosure.
[0032] Description of the Reference Numerals
[0033] 10 - Water supply mechanism; 20 - Spraying mechanism; 21 - Main water pipe; 22 - Primary spraying assembly; 220 - Primary spraying pipe; 221 - Primary spraying section; 23 - Secondary spraying assembly; 230 - Secondary spraying pipe; 231 - Secondary spraying section; 2310 - Spraying head; 24 - Primary switch valve; 25 - Secondary switch valve; 26 - Drain valve; 27 - Connecting water pipe; 30 - Controller; 40 - Detection module; 50 - Automatic air vent valve; 60 - Connecting vent pipe; 70 - Alarm valve; 80 - Safety signal valve. Detailed implementation manners
[0034] The following will describe in detail the detailed implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the detailed implementation manners described herein are only for the purpose of illustrating and explaining the present disclosure, and are not used to limit the present disclosure.
[0035] In the present disclosure, unless otherwise stated, the orientation terms such as "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present disclosure. The terms "inner" and "outer" refer to the inside and outside of the corresponding structural contour.
[0036] In addition, it should be noted that the terms such as "first", "second", etc. are used to distinguish one element from another, and do not have sequentiality and importance. In addition, in the description with reference to the accompanying drawings, the same reference numerals in different drawings represent the same elements.
[0037] In the description of the present disclosure, it should also be noted that, unless otherwise clearly specified and limited, the terms "arranged", "connected", "linked", "installed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0038] Refer to Figures 1 to 2As shown in the figure, the present disclosure provides a dry slag discharger assembly, including a slag discharger main body, a cleaning chain, a spraying mechanism 20, a controller 30, and a detection module 40. The spraying mechanism 20 is used to spray water on the cleaning chain, and the detection module 40 is used to detect the ash accumulation height on the cleaning chain. The spraying mechanism 20 includes a main water pipe 21, a first-stage spraying assembly 22, a second-stage spraying assembly 23, a first-stage switch valve 24, and a second-stage switch valve 25. The main water pipe 21 is connected to the water supply mechanism 10. The first-stage spraying assembly 22 includes a first-stage spraying pipe 220 and a first-stage spraying section 221. One end of the first-stage spraying pipe 220 is communicated with the main water pipe 21, and the other end of the first-stage spraying pipe 220 extends upward and is communicated with the first-stage spraying section 221. The first-stage spraying section 221 is located above the cleaning chain. The second-stage spraying assembly 23 includes a second-stage spraying pipe 230 and a second-stage spraying section 231. One end of the second-stage spraying pipe 230 is communicated with the main water pipe 21, and the other end of the second-stage spraying pipe 230 extends upward and is communicated with the second-stage spraying section 231. The second-stage spraying section 231 is located above the first-stage spraying section 221. A plurality of spraying holes are formed on both the first-stage spraying section 221 and the second-stage spraying section 231, and the plurality of spraying holes are arranged at intervals along the length directions of the first-stage spraying section 221 and the second-stage spraying section 231. The first-stage switch valve 24 is arranged on the first-stage spraying pipe 220; the second-stage switch valve 25 is arranged on the second-stage spraying pipe 230, and the controller 30 is respectively in signal connection with the first-stage switch valve 24, the second-stage switch valve 25, and the detection module 40.
[0039] Through the above technical solution, when the detection module 40 detects that the ash accumulation height on the cleaning chain reaches a certain level, it can send the collected ash accumulation height signal to the controller 30. At this time, the controller 30 can control the opening of the first switch valve and / or the second switch valve. In this way, the water in the water supply mechanism 10 will be sprayed from top to bottom onto the relatively lower cleaning chain through the first-stage spraying pipe 220 and the first-stage spraying section 221. Similarly, the water in the water supply mechanism 10 can also be sprayed onto the relatively higher cleaning chain through the second-stage spraying pipe 230 and the second-stage spraying section 231 of the second-stage spraying assembly 23, so as to realize the spraying of the ash accumulation on the upper and lower layers of the cleaning chain, achieve the purpose of increasing the adhesiveness of the ash accumulation, facilitate the cleaning of the ash accumulation by the cleaning chain, and moreover, in the above process, there is no need for the spraying personnel to manually spray the ash accumulation on the cleaning chain. On the one hand, it can avoid the problem of excessive spraying caused by the subjective judgment error of the spraying personnel. On the other hand, it can also reduce the labor intensity and safety hazards of the spraying personnel, and the spraying of the ash accumulation is more accurate and efficient.
[0040] Moreover, since the above-mentioned first-stage spraying section 221 and the second-stage spraying section 231 are at different heights, when spraying the cleaning chain, it can simultaneously realize the spraying of the upper and lower layers of the cleaning chain, further improving the spraying effect.
[0041] It should be noted that the above detection module 40 can be a distance sensor capable of detecting the distance from the dust accumulation. In this way, by detecting the change in the distance of the dust accumulation height, the purpose of the disc to the change in the dust accumulation height can be achieved. For example, the detection module 40 can be a pressure sensor, so as to obtain the dust accumulation thickness according to the magnitude of the pressure. Or, the detection module 40 can also be a distance sensor.
[0042] Alternatively, the above detection module 40 can also include a speed sensor for detecting the rising speed of the cleaning chain and a current sensor for detecting the current of the cleaning chain. When it is detected that the rising speed of the cleaning chain ≥ 0.1A / 10min and the current of the cleaning chain ≥ 3.3A, at this time, the rising speed of the cleaning chain is relatively slow and the current carried by the cleaning chain is small, indicating that the degree of dust accumulation on the cleaning chain is relatively light. At this time, the controller 30 can control the main switch valve to open and the secondary switch valve 25 to close; when it is detected that the rising speed of the cleaning chain ≥ 0.2A / 10min and the current of the cleaning chain ≥ 3.8A, the rising speed of the cleaning chain is relatively fast, indicating that the degree of dust accumulation on the cleaning chain is relatively heavy. At this time, the controller 30 can control the main switch valve and the secondary switch valve 25 to open simultaneously to spray the dust accumulation on the cleaning chain together, improving the spraying efficiency.
[0043] In order to further improve the spraying effect of the above primary spraying assembly 22 and secondary spraying assembly 23, as Figure 1 shown, in an exemplary embodiment provided by the present disclosure, the primary spraying assembly 22 includes two primary spraying segments 221. Both of the two primary spraying segments 221 are communicated with the primary spraying pipe 220, and the two primary spraying segments 221 are arranged at intervals in the up-down direction; the secondary spraying assembly 23 includes two secondary spraying segments 231. Both of the two secondary spraying segments 231 are communicated with the secondary spraying pipe 230, and the two secondary spraying segments 231 are arranged at intervals in the up-down direction. That is to say, along the up-down direction, the spraying mechanism 20 provided by the present disclosure includes four above-mentioned spraying segments. In this way, during the process of spraying the cleaning chain, the two primary spraying segments 221 and the two secondary spraying segments 231 can spray the dust accumulation from four different heights and different orientations respectively, further reducing the spraying dead angle and improving the spraying effect.
[0044] In order to facilitate the connection and fixation between the above spraying mechanism 20 and the slag discharging machine main body, in an embodiment provided by the present disclosure, the dry slag discharging machine assembly further includes a fastening mechanism. The fastening mechanism includes a plurality of support beams and a plurality of fasteners. One end of each support beam is connected to the side wall of the slag discharging machine main body, and the other end of each support beam is fastened to the spraying mechanism 20 through the fasteners. In this way, when connecting the spraying mechanism 20 through the support beam, it can also ensure that there is a certain gap between the spraying mechanism 20 and the slag discharging machine main body, thereby avoiding interference or interference between the spraying mechanism 20 and the slag discharging machine main body and improving the stability of the spraying mechanism 20 during the spraying process.
[0045] As Figure 1 shown, a spray head 2310 can be connected to each secondary spray section 231. The spray head 2310 has a plurality of spray holes, thereby being able to expand the spraying range.
[0046] Furthermore, the spray head 2310 and the secondary spray section 231 can be connected by a rotary motor, so that the motor can drive the spray head 2310 to rotate when the spray head 2310 sprays, further increasing the spraying range and spraying uniformity.
[0047] It should be noted that for the embodiment in which the spraying mechanism 20 can include a primary spray assembly 22 and a secondary spray assembly 23, the primary spray assembly 22 and the secondary spray assembly 23 can be respectively connected to the slag discharge machine main body through the above fastening mechanism.
[0048] Alternatively, in other embodiments provided by the present disclosure, the spraying mechanism 20 can also be connected to the slag discharge machine main body by welding.
[0049] Optionally, as Figure 1 shown, the spraying mechanism 20 can further include an automatic exhaust valve 50. The automatic exhaust valve 50 is communicated with the primary spray pipe 220 or the secondary spray pipe 230. The setting of the automatic exhaust valve 50 can discharge the gas in the first spray pipe or the second spray pipe, thereby avoiding problems such as corrosion of the primary spray pipe 220 or the secondary spray pipe 230 caused by the gas and generation of noise during the flowing process.
[0050] Optionally, as Figure 1 shown, the automatic exhaust valve 50 is communicated with the secondary spray pipe 230 and is located at the highest point of the secondary spray pipe 230. Since the height of the secondary spray pipe 230 is higher than that of the primary spray pipe 220, in this way, when the above automatic exhaust valve 50 is arranged at the highest point of the earphone spray pipe, the gas is more convenient to be discharged from the primary spray pipe 220 and the secondary spray pipe 230 through the automatic exhaust valve 50 during the upward flowing process.
[0051] Optionally, the distance between the primary spray section 221 and the cleaning chain ≥ 10 cm, and the distance between the secondary spray section 231 and the cleaning chain ≥ 10 cm. That is to say, there is a certain distance between the primary spray section 221 and the cleaning chain and between the secondary spray section 231 and the cleaning chain. In this way, it can avoid the problem that the spray holes on the primary spray section 221 and the spray holes on the secondary spray section 231 are blocked by accumulated ash when not spraying.
[0052] In an exemplary embodiment provided by the present disclosure, as Figure 1As shown, the secondary spray pipe 230 is connected to the main water pipe 21 through the primary spray pipe 220. It can be understood that the water flowing out of the water supply mechanism 10 first flows through the first spray pipe and then into the secondary spray pipe 230 from the primary spray pipe, thus simplifying the structure of the secondary spray pipe 230 and making it more convenient to arrange the secondary spray pipe 230.
[0053] In another exemplary embodiment provided by the present disclosure, the secondary spray pipe 230 may also not be connected to the main water pipe 21 through the primary spray pipe 220, that is, the primary spray pipe 220 and the secondary spray pipe 230 are independently arranged, and the water flowing out of the main pipe can flow into the primary spray pipe 220 and the secondary spray pipe 230 respectively, and the spraying of the two will not interfere with each other.
[0054] As Figure 1 shown, the spray mechanism 20 may further include a plurality of drain valves 26. The primary spray assembly 22 is connected to one drain valve 26, and the secondary spray assembly 23 is connected to another drain valve 26. The drain valve 26 can protect the safety of the primary spray assembly 22 and the secondary spray assembly 23. When the water pressure is too high, it will automatically drain water to relieve the pressure on the primary spray pipe 220 and the secondary spray pipe 230.
[0055] Optionally, as Figure 1 shown, the spray mechanism 20 further includes a connecting water pipe 27. One end of the connecting water pipe 27 is connected to the primary spray pipe 220, and the other end of the connecting water pipe 27 is connected to the secondary spray pipe 230.
[0056] In order to increase the spraying area of the above spray mechanism 20, in an embodiment provided by the present disclosure, the spraying area of the primary spray section 221 does not completely overlap with the spraying area of the secondary spray section 231. That is to say, the primary spray section 221 can spray to areas that the secondary spray section cannot spray to. Similarly, the secondary spray section 231 can also spray to positions that the primary spray section 221 cannot spray to. Under the cooperative action of the primary spray section 221 and the secondary spray section 231, the spray mechanism 20 can have a larger spraying area, further reducing the spraying dead angle and improving the spraying effect on the dust accumulated on the cleaning chain.
[0057] As Figure 1 shown, the spray mechanism 20 provided by the present disclosure further includes a connecting drain pipe 60, and the connecting drain pipe 60 is connected to the primary spray pipe and the secondary spray pipe 230.
[0058] In addition, as Figure 1 shown, an alarm valve 70 and a safety signal valve 80 are also connected to the main water pipe 21. The alarm valve 70 and the safety signal valve 80 can alarm when the flow rate, flow velocity and pressure of the water in the main water pipe 21 are abnormal, so as to facilitate the rapid maintenance of the spray mechanism 20 by the operators.
[0059] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0060] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, without contradiction, they can be combined in any appropriate manner. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.
[0061] Furthermore, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.
Claims
1. A dry slag discharging machine assembly, characterized in that, It includes a slag discharge machine main body, a cleaning chain, a spraying mechanism, a controller and a detection module. The spraying mechanism is used to spray water on the cleaning chain, and the detection module is used to detect the ash accumulation height on the cleaning chain. The spraying mechanism includes: A main water pipe which is connected to a water supply mechanism; A first-stage spraying assembly including a first-stage spraying pipe and a first-stage spraying section. One end of the first-stage spraying pipe is communicated with the main water pipe, the other end of the first-stage spraying pipe extends upward and is communicated with the first-stage spraying section, and the first-stage spraying section is located above the cleaning chain; A second-stage spraying assembly including a second-stage spraying pipe and a second-stage spraying section. One end of the second-stage spraying pipe is communicated with the main water pipe, the other end of the second-stage spraying pipe extends upward and is communicated with the second-stage spraying section, and the second-stage spraying section is located above the first-stage spraying section; Multiple spraying holes are formed on both the first-stage spraying section and the second-stage spraying section, and the multiple spraying holes are arranged at intervals along the length directions of the first-stage spraying section and the second-stage spraying section; A first-stage switching valve which is arranged on the first-stage spraying pipe; A second-stage switching valve which is arranged on the second-stage spraying pipe; The controller is respectively in signal connection with the first-stage switching valve, the second-stage switching valve and the detection module.
2. The dry slag discharger assembly according to claim 1, wherein, The first-stage spraying assembly includes two of the first-stage spraying sections, both of the two first-stage spraying sections are communicated with the first-stage spraying pipe, and the two first-stage spraying sections are arranged at intervals in the up-down direction; The second-stage spraying assembly includes two of the second-stage spraying sections, both of the two second-stage spraying sections are communicated with the second-stage spraying pipe, and the two second-stage spraying sections are arranged at intervals in the up-down direction.
3. The dry slag discharging machine assembly according to claim 1, characterized in that, The dry slag discharge machine assembly further includes a fastening mechanism which includes multiple support beams and multiple fasteners. One end of each support beam is connected to the side wall of the slag discharge machine main body, and the other end of each support beam is fastened to the spraying mechanism through the fasteners.
4. The dry slag extractor assembly according to claim 1, characterized in that, The spraying mechanism further includes an automatic exhaust valve which is communicated with the first-stage spraying pipe or the second-stage spraying pipe.
5. The dry slag discharging machine assembly according to claim 4, characterized in that, The automatic exhaust valve is communicated with the second-stage spraying pipe and is located at the highest point of the second-stage spraying pipe.
6. The dry slag extractor assembly according to any one of claims 1-5, characterized in that, The distance between the first-stage spraying section and the cleaning chain is ≥10 cm; The distance between the second-stage spraying section and the cleaning chain is ≥10 cm.
7. The dry slag extractor assembly according to any one of claims 1-5, characterized in that, The second-stage spraying pipe is communicated with the main water pipe through the first-stage spraying pipe.
8. The dry slag discharger assembly according to any one of claims 1-5, characterized in that, The spraying mechanism further includes multiple drain valves. The first-stage spraying assembly is connected to one of the drain valves, and the second-stage spraying assembly is connected to the other drain valve.
9. The dry slag extractor assembly according to any one of claims 1-5, characterized in that The spraying mechanism further includes a connecting water pipe. One end of the connecting water pipe is communicated with the first-stage spraying pipe, and the other end of the connecting water pipe is communicated with the second-stage spraying pipe.
10. The dry slag extractor assembly according to any one of claims 1-5, characterized in that, The spraying area of the first-stage spraying section does not completely overlap with the spraying area of the second-stage spraying section.