Turning plate type movable steam collecting device, bottom filter tank and working method of bottom filter tank
The flap-type mobile steam collection device addresses the issue of slag particle scattering by incorporating a movable flap that directs particles into the filter tank, ensuring equipment protection and improved operational safety in the blast furnace slag handling process.
Patent Information
- Application Number
- CN202411258192.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2024-12-27
AI Technical Summary
The issue of slag particles scattering from the overhead crane grab bucket during slag handling in the blast furnace process leads to damage of the mobile steam collection hood, compromising equipment integrity and operational safety.
A flap-type mobile steam collection device with a movable flap that rotates downward around a horizontal shaft, allowing scattered slag particles to fall into the bottom filter tank, combined with a travel mechanism for left-right movement, ensuring the steam collection device is protected and maintaining a stable operation environment.
Prevents damage to the steam collection device by accumulated slag, enhances operational stability, and facilitates easier maintenance, contributing to a safer and more efficient slag handling process.
Smart Images
Figure CN119193942A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of blast furnace slag flushing by water, and in particular to a flap-type mobile steam collecting device, a bottom filter tank, and more particularly to a working method of the bottom filter tank. Background Art
[0002] High-temperature liquid slag is the main by-product of blast furnace smelting, with extremely high solid waste resource recycling value and economic benefits. At present, the mainstream slag treatment method for domestic and foreign steel enterprises is the water slag flushing process. The slag is crushed and quenched by high-speed water flow, turning it into a loose slag-water mixture (hereinafter referred to as water slag), which flows into the filter tank through the slag flushing ditch. The liquid water is filtered through the filter layer in the filter tank, leaving solid and wet slag particles on the top of the filter material, and then the slag particles are grabbed by a bridge grab crane and transported by car or belt.
[0003] Liquid slag has a high temperature (1350℃-1500℃). A large amount of slag continues to undergo intense heat transfer during the water quenching and granulation process, generating a large amount of steam. Especially in winter, when the ambient temperature is low and the ambient temperature difference is large, more steam is generated. In order to prevent the generated steam from escaping and being directly discharged, a steam collection device is installed on the top of the filter tank. However, during the slag grabbing process, the slag particles in the grab bucket will fall, and the slag accumulation on the top of the steam collection device is relatively serious. The equipment structure is easily damaged, and the steam cannot be effectively collected.
[0004] Specifically, Figure 1 As shown, the bottom filter tank 1 includes a first tank body 11 and a second tank body 12 arranged on the left and right, and the bottom filter tank also includes a mobile steam collecting hood, which can move left and right on the first tank body 11 and the second tank body 12, and a slag collecting bucket 13 is arranged on the right side of the second tank body 12. During the process of the overhead crane grab bucket 7 grabbing the slag particles in the first tank body 11 and transporting them to the slag collecting bucket 13, the slag particles in the overhead crane grab bucket 7 will be spilled onto the mobile steam collecting hood on the second tank body 12. After long-term operation, the top of the mobile steam collecting hood will have serious slag accumulation and will be easily crushed. Summary of the invention
[0005] In order to solve the problem that the slag particles scattered from the overhead crane grab bucket for a long time are likely to crush the mobile steam collection hood, the present invention provides a flap-type mobile steam collection device, a bottom filter tank and a working method thereof. The movable flap of the flap-type mobile steam collection device can rotate downward around the rotating axis, and the slag particles falling on the movable flap can fall into the bottom filter tank, which can not only prevent the mobile steam collection hood from being easily crushed by accumulated slag, but also improve the working environment of the blast furnace slag area, thereby providing equipment guarantee for realizing a green factory.
[0006] The technical solution adopted by the present invention to solve the technical problem is:
[0007] A flap-type mobile steam collecting device comprises a supporting frame, a top sealing cover and a travel drive mechanism. The top sealing cover contains a fixed sealing cover area and a movable plate mounting opening arranged in a front-to-back direction. A movable flap is matchedly arranged in the movable plate mounting opening. The movable flap is connected to a rotating shaft and a flipping drive mechanism. The flipping drive mechanism can drive the movable flap to rotate downward around the rotating shaft, and the rotating shaft is in a horizontal state. The travel drive mechanism can drive the flap-type mobile steam collecting device to move in the left and right directions.
[0008] A bottom filter tank comprises a first tank body and a second tank body arranged on the left and right. The bottom filter tank also comprises the above-mentioned flap-type mobile steam collecting device, which can move left and right on the first tank body and the second tank body, and can close the upper end of the first tank body or the upper end of the second tank body.
[0009] A working method of the bottom filter tank comprises the following steps in sequence:
[0010] Step 1, the flap-type mobile steam collecting device moves to the right to the second tank body, the movable flap is in a closed position, the slag-water mixture enters the second tank body for slag-water filtration, the overhead crane grab grabs the slag particles in the first tank body and transports them to the slag particle collection bucket. During the process of the overhead crane grab moving directly above the second tank body, the overhead crane grab is only located directly above the movable flap, and the overhead crane grab is not located directly above the fixed sealing cover area;
[0011] Step 2: The turning driving mechanism drives the movable flap to rotate downward around the rotating shaft, and the slag particles falling on the movable flap can fall into the second tank body;
[0012] Step 3, the flap-type mobile steam collecting device moves to the left to the first tank body, the movable flap is in a closed position, the slag-water mixture enters the first tank body for slag-water filtration, and the overhead crane grabs the slag particles in the second tank body and transports them to the slag particle collection bucket;
[0013] Step 4: Repeat steps 1 to 3 above.
[0014] The beneficial effects of the present invention are as follows: the movable flap of the flap-type mobile steam collecting device can rotate downward around the rotating axis, and the slag particles scattered by the overhead crane grab bucket on the movable flap can fall into the bottom filter tank, thereby avoiding the steam collecting device being easily crushed by accumulated slag and easily being damaged by the collision of the crane grab bucket. The present invention has the advantages of more feasible scheme, more stable and reliable operation, faster and more convenient maintenance, etc., which improves the working environment in the blast furnace slag area and provides equipment guarantee for realizing a green factory. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.
[0016] Figure 1 It is a top view schematic diagram of a bottom filter tank and a steam collection device in the prior art.
[0017] Figure 2 It is a top view schematic diagram of the flap type mobile steam collecting device of the present invention.
[0018] Figure 3 It is a front view schematic diagram of the flap type mobile steam collecting device of the present invention.
[0019] Figure 4 It is a left side schematic diagram of the flap type mobile steam collecting device of the present invention.
[0020] Figure 5 It is a partial overall schematic diagram of the support frame and top cover.
[0021] Figure 6 is an exploded schematic diagram of the support frame and top cover.
[0022] Figure 7 It is a schematic diagram when the movable flap is in the closed position.
[0023] Figure 8 Schematic diagram of the movable flap in the open position.
[0024] Fig. 9 It is a schematic diagram of the cleaning mechanism.
[0025] Description of reference numerals:
[0026] 1. Bottom filter tank; 2. Rails; 3. Travel drive mechanism; 4. Support frame; 5. Top cover; 6. Cleaning mechanism; 7. Overhead crane grab bucket; 8. Liquid level monitoring device; 9. Slag particles;
[0027] 11. First tank body; 12. Second tank body; 13. Slag particle collection bucket;
[0028] 41. transverse beam; 42. longitudinal beam;
[0029] 51. Fixed enclosure area; 52. Movable flap; 53. Rotating shaft; 54. Turning drive mechanism; 55. Movable panel mounting opening; 56. Top plate; 57. Side plate; 58. Flapping panel fixing structure;
[0030] 61. scraper; 62. translation drive mechanism; 63. gap;
[0031] 571, Front side plate; 572, Left side plate; 573, Rear side plate; 574, Right side plate;
[0032] 581, Column; 582, Bottom beam. Detailed implementation mode
[0033] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.
[0034] For the convenience of understanding and description, an absolute positional relationship is adopted in the following description of the present invention. Without special instructions, the orientation word "up" represents Figure 4 the upper side direction in Figure 4 the lower side direction in Figure 4 the left side direction in Figure 4 the right side direction in Figure 4 the direction perpendicular to the Figure 4 paper surface and pointing to the inner side of the paper surface, and the orientation word "rear" represents the direction perpendicular to the
[0035] Such as Figures 2 to 8 shown, a flip - type mobile steam collection device described in an embodiment of the present invention includes a support frame 4, a top cover 5, and a traveling drive mechanism 3. The top cover 5 includes a fixed cover area 51 and a movable plate mounting opening 55 arranged in the front - rear direction. A movable flap 52 is disposed in the movable plate mounting opening 55 in a matching manner. The movable flap 52 is connected to a rotating shaft 53 and a flipping drive mechanism 54. The flipping drive mechanism 54 can drive the movable flap 52 to rotate downward around the rotating shaft 53. The rotating shaft 53 is in a horizontal state, and the traveling drive mechanism 3 can drive the flip - type mobile steam collection device to travel in the left - right direction.
[0036] The movable flap 52 of the flip - type mobile steam collection device can rotate downward around the rotating shaft. The slag particles scattered on the movable flap 52 by the overhead crane grab 7 can fall into the bottom filter tank 1 after the movable flap 52 rotates downward, avoiding situations such as the steam collection device being easily crushed by accumulated slag and being easily damaged by the collision of the overhead crane grab. It has the advantages of more feasible solutions, more stable and reliable operation, and more convenient and rapid maintenance, improves the operation environment in the blast furnace slag area, and provides equipment guarantee for the realization of a green factory.
[0037] Such as Figures 5 and 6As shown, the support frame 4 is a rectangular frame structure, the support frame 4 matches the upper end of the first tank body 11 or the second tank body 12, the support frame 4 includes a crossbeam 41 and a longitudinal beam 42, the crossbeam 41 extends in the left-right direction, the longitudinal beam 42 extends in the front-back direction, the length direction of the support frame 4 is parallel to the front-back direction, the width direction of the support frame 4 is parallel to the left-right direction, and the lower end of the top cover 5 matches and is correspondingly connected to the upper end of the support frame 4. The travel drive mechanism 3 is installed on the support frame 4 to provide power for the movement of the flap-type mobile steam collecting device.
[0038] The size of the support frame 4 can be adjusted according to the size of a single filter tank, and the principle of minimizing the distance between the support frame and the side wall of the filter tank should be followed. In order to ensure that the steam generated during the operation of the filter tank does not escape, the gap between the support frame 4 and the bottom filter tank 1 is closed with a soft sealing curtain.
[0039] like Figures 5 and 6 As shown, the top cover 5 includes a top plate 56 and a side plate 57 connected up and down, the top plate 56 is in a horizontal state, and the side plate 57 is in an upright state. The side plate 57 includes a front side plate 571, a left side plate 572, a rear side plate 573 and a right side plate 574 connected in sequence, and the fixed cover area 51 and the movable plate mounting port 55 are both located in the top plate 56.
[0040] The top plate 56 is a rectangular structure, the length direction of the top plate 56 is parallel to the front-to-back direction, the width direction of the top plate 56 is parallel to the left-to-right direction, the movable plate mounting opening 55 is a rectangular through hole, the movable plate mounting opening 55 is located in the middle of the top plate 56 along the front-to-back direction, the movable plate mounting opening 55 is located between the two fixed cover areas 51, and the length of the movable plate mounting opening 55 along the left-to-right direction is equal to the width of the top plate 56.
[0041] According to the relationship between force and moment, in order to ensure that the movable flap 52 does not deflect during sealing, the entire flap is in a horizontal position (the movable flap 52 is in a closed position); during slag removal, the flip drive mechanism 54 can rotate the movable flap 52 around the rotation axis 53, and the contact point of the flip drive mechanism 54 on the movable flap 52 should be as far away from the rotation axis 53 as possible, close to the end position on the other side. In order to ensure the structural strength of a single movable flap 52, the flap area can be composed of multiple movable flaps 52, but the overall sealing should be considered when adjacent flaps are in a closed position.
[0042] like Figures 5 to 8As shown, in addition, the width and position of the movable plate installation opening 55 are determined according to the size of the grab bucket, and the principle to be ensured is that the overall width of the grab bucket is smaller than the width of the flap area enclosure. Preferably, the movable plate installation opening 55 is composed of two movable flaps 52, which are in the form of a flip type, and the width of the movable plate installation opening 55 can be 1m-3m. In order to ensure that the movable flap 52 can flip around the rotating shaft 53 smoothly, stably and at a uniform speed, a flip driving mechanism 54 should be arranged on both sides of the flap, and the relative positions of the arrangements should be consistent.
[0043] Two movable flaps 52 are matched and arranged in the movable panel installation opening 55. The two movable flaps 52 are identical, arranged front and back and are mirror images of each other, and each movable flap 52 is connected to the support frame 4 through a rotating shaft 53 and a flap fixing structure 58 in sequence, and the rotating shaft 53 extends in the left-right direction. The rotating shaft 53 connected to the front movable flap 52 is located at the front end of the front movable flap 52, and the rotating shaft 53 connected to the rear movable flap 52 is located at the rear end of the rear movable flap 52.
[0044] like Figures 6 to 8 As shown, the front movable flap 52 can rotate around the front rotating shaft 53, and the rear movable flap 52 can rotate around the rear rotating shaft 53. The two rotating shafts 53 are arranged front and back and are mirror images of each other, the two flap fixing structures 58 are arranged front and back and are mirror images of each other, and the two flip driving mechanisms 54 are arranged front and back and are mirror images of each other. The flap fixing structure 58 includes a column 581 and a bottom beam 582 connected up and down, the bottom beam 582 extends in the left and right direction, the bottom beam 582 is connected and fixed to the support frame 4, and the upper end of the column 581 is connected to the rotating shaft 53.
[0045] The flip driving mechanism 54 is located below the movable flap 52. The flip driving mechanism 54 can be a hydraulic cylinder (or an electric telescopic rod). The piston rod of the flip driving mechanism 54 is hinged to the movable flap 52, and the cylinder of the flip driving mechanism 54 is hinged to the bottom beam 582. When the movable flap 52 is in the closed position, the movable flap 52 is in a horizontal state, the piston rod of the flip driving mechanism 54 is in an extended state, and the flip driving mechanism 54 provides a supporting force for the movable flap 52 to ensure that the movable flap 52 does not tilt. The two movable flaps 52 can close the movable panel installation port 55, and the top sealing cover 5 is in a closed state. At this time, the top sealing cover 5 (and the flap type mobile steam collecting device) have good sealing performance. When the movable flap 52 is in the open position, the movable flap 52 is in an inclined state, the piston rod of the flip driving mechanism 54 is in a retracted state, the movable flap 52 cannot close the movable panel installation opening 55, and the top cover 5 is in a semi-closed state (or partially open state). At this time, the slag particles accumulated on the movable flap 52 fall back into the bottom filter tank 1 by gravity. The inclination angle of the movable flap 52 can be obtained according to a limited number of experiments.
[0046] In order to prevent the movable flap 52 from bearing the load of slag particles accumulated on the flap when it is in the closed position, the movable flap 52 should have a certain strength, and it can be considered to increase the thickness of the plate or use a stronger material. At the same time, the flap tilting device should also have a locking function, that is, when it is in the closed position or the flip position, the push rod of the flip driving mechanism 54 can reach the limit position to achieve a self-locking function.
[0047] In order to ensure that the flap-type mobile steam collecting device can be used for a long time in a corrosive water vapor environment and maintain good structural stability, the top cover 5 of the flap-type mobile steam collecting device is preferably made of acid-resistant, alkali-resistant, and high-temperature-resistant materials, such as fiberglass. In order to improve the overall strength of the fixed cover area 51, the cover can be assembled in blocks and shaped like an arch bridge with a more stable structure.
[0048] The joints between the fixed enclosure area 51 and the support frame 4, between the separately assembled fixed enclosure bodies, and between the fixed enclosure area 51 and the flap area enclosure body should have good sealing properties. For example, where there are large gaps, soft, corrosion-resistant sealing curtains should be used to ensure that the steam generated by the filter tank during operation does not escape.
[0049] When the plate-type mobile steam collection device is located in the working position above the filter tank, the gap between it and the concrete filter tank should be sealed to prevent steam from overflowing. The sealing of the surrounding beams should consider multiple layers of soft seals inside and outside to ensure that the steam collection device can maintain the sealing effect even when there is a movement error. Daily wear and tear must also be considered to ensure service life.
[0050] like Figures 7 to 9 As shown, in order to better remove the slag particles falling on the movable flap 52, a cleaning mechanism 6 can be provided on the top cover 5. The cleaning mechanism 6 corresponds to the movable flap 52 one by one. The two cleaning mechanisms 6 are respectively located on the front and rear sides of the movable plate installation opening 55. The front and rear cleaning mechanisms 6 have the same structure and are mirror images of each other. The cleaning mechanism 6 can remove the slag particles 9 on the movable flap 52. The cleaning mechanism 6 includes a scraper 61 and a translation drive mechanism 62 connected in sequence. In order to cooperate with the cleaning mechanism 6, each movable flap 52 can be independently controlled to rotate, and each cleaning mechanism 6 can also be independently controlled.
[0051] Specifically, the translation drive mechanism 62 can drive the scraper 61 to move forward and backward. When the movable flap 52 is in a horizontal state, the scraper 61 can abut against the movable flap 52 up and down, and the length of the scraper 61 is substantially the same as that of the movable flap 52. The translation drive mechanism 62 drives the scraper 61 to move forward and backward, thereby pushing the slag particles 9 on the movable flap 52 into the bottom filter tank 1.
[0052] The following is an introduction to a bottom filter tank, wherein the bottom filter tank 1 includes a first tank body 11 and a second tank body 12 arranged on the left and right, and the bottom filter tank 1 also includes the above-mentioned flap-type mobile steam collecting device and a slag particle collecting bucket 13, and the slag particle collecting bucket 13 is located on the right side of the bottom filter tank 1, and the flap-type mobile steam collecting device can move left and right on the first tank body 11 and the second tank body 12, and the flap-type mobile steam collecting device can close the upper end of the first tank body 11 or the upper end of the second tank body 12.
[0053] The bottom filter tank 1 is provided with a steel rail 2 for the flap-type mobile steam collecting device to move left and right on the first tank body 11 and the second tank body 12. A liquid level monitoring device 8 is provided in the first tank body 11 and the second tank body 12. The liquid level monitoring device can monitor the liquid level height in the first tank body 11 and the second tank body 12 in real time.
[0054] The steel rail 2 is placed on the concrete bottom filter tank 1, and is mainly used to move the steam collection device between multiple adjacent filter tanks. The length of the top steel rail and the distance between the steel rails between adjacent tank walls can be determined according to the specific size of the bottom filter tank 1. In order to ensure that the mobile gas collection hood can accurately stop directly above the working filter tank, a vehicle stopper, a distance monitoring device, etc. can be set on the steel rail 2.
[0055] The working method of the bottom filter tank is described below, which includes the following steps in sequence:
[0056] Step 1, the blast furnace water slag flushing system issues an interlocking control command, the travel drive mechanism 3 works, the flap-type mobile steam collection device moves to the right to the second tank body 12, the two movable flaps 52 are in the closed position, the flap-type mobile steam collection device closes the upper end of the second tank body 12, and the travel drive mechanism 3 stops working. After the flap-type mobile steam collection device stops, a stop position command is issued, and the control system starts the slag flushing signal at the same time. The slag flushing water electric valve and the slag flushing ditch valve are opened, and the slag water mixture enters the second tank body 12 for slag water filtration. After the second tank body 12 slag flushing command is issued, the first tank body 11 synchronously starts the slag grabbing process, that is, the overhead crane grab bucket 7 grabs the slag particles 9 in the first tank body 11, and transports them to the slag particle collection bucket 13, and then transports them away by belt or car to realize the slag particle transportation. During the movement of the overhead crane grab bucket 7 directly above the second pool body 12, the overhead crane grab bucket 7 is only located directly above the movable flap 52, and the overhead crane grab bucket 7 is not located directly above the fixed sealing area 51. The slag particles 9 spilled by the overhead crane grab bucket 7 fall on the movable flap 52 but not on the fixed sealing area 51.
[0057] In addition, anti-collision steel columns can also be added to prevent the grab bucket of the slag grab crane from colliding with the steam collection device and causing damage due to manual operating errors or automated failures of the slag grab crane.
[0058] Step 2: The turning driving mechanism 54 drives the movable flap 52 to rotate downward around the rotating shaft 53, and the slag particles 9 falling on the movable flap 52 can fall into the second pool body 12;
[0059] Specifically, it can be achieved by independently controlling each movable flap 52 and the cleaning mechanism 6. For example, the steps are as follows:
[0060] Step 2.1, the front movable flap 52 is in a closed position (i.e., horizontal state), the rear movable flap 52 is in an open position (i.e., inclined state), the front scraper 61 moves backwards, pushing the slag particles 9 on the front movable flap 52 backwards, so that the slag particles 9 on the front movable flap 52 fall into the second pool body 12 through the gap 63 between the two movable flaps 52;
[0061] Step 2.2, the movable flap 52 at the rear is in a closed position (i.e., horizontal state), the movable flap 52 at the front is in an open position (i.e., inclined state), and the scraper 61 at the rear moves forward, so that the slag particles on the movable flap 52 at the rear fall into the second pool body 12 through the gap 63 between the two movable flaps 52.
[0062] The above steps 2.1 and 2.2 may be repeated as many times as needed to completely remove the slag particles on the movable flap 52 .
[0063] Step 3, the blast furnace water slag flushing system issues an interlocking control command, the travel drive mechanism 3 works, the flap-type mobile steam collection device moves to the left to the first tank body 11, the movable flap 52 is in a closed position, the flap-type mobile steam collection device closes the upper end of the first tank body 11, and the travel drive mechanism 3 stops working. After the flap-type mobile steam collection device stops, a stop position command is issued, and the control system starts the slag flushing signal at the same time. The slag flushing water electric valve and the slag flushing ditch valve are opened, and the slag-water mixture enters the first tank body 11. After the slag flushing command for the first tank body 11 is issued, the second tank body 12 starts the slag grabbing process synchronously, that is, the overhead crane grab bucket 7 grabs the slag particles in the second tank body 12, and transports them to the slag particle collection bucket 13, and then transports them away by belt or car to realize the external transportation of slag particles.
[0064] Step 4. The above steps 1 to 3 can be repeated in sequence as needed to achieve continuous operation. Observing the water level information in the first tank body 11 and the second tank body 12 is the key to switching the working filter tank and the system process control. In order to ensure that the water level in the filter tank is lower than the filter tank wall during the water slag flushing process, a scanning device or a camera device can be added to the flap-type mobile steam collection device, the first tank body 11 and the second tank body 12 to measure the water level in the first tank body 11 and the second tank body 12 in real time and dynamically during the slag flushing process.
[0065] The above is only a specific embodiment of the present invention, and cannot be used to limit the scope of the invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the protection scope of the present invention should still fall within the scope of the present invention. In addition, the technical features in the present invention can be freely combined with each other, with technical features and technical solutions, and with technical solutions.
Claims
1. A flap-type mobile steam collecting device, characterized in that: The flap-type mobile steam collecting device comprises a supporting frame (4), a top sealing cover (5) and a travel drive mechanism (3); the top sealing cover (5) comprises a fixed sealing cover area (51) and a movable plate mounting opening (55) arranged in a front-to-rear direction; a movable flap (52) is matchedly arranged in the movable plate mounting opening (55); the movable flap (52) is connected to a rotating shaft (53) and a flip drive mechanism (54); the flip drive mechanism (54) can drive the movable flap (52) to rotate downward around the rotating shaft (53), the rotating shaft (33) is in a horizontal state, and the travel drive mechanism (3) can drive the flap-type mobile steam collecting device to travel in the left-right direction.
2. The flap-type mobile steam collecting device according to claim 1, characterized in that: The support frame (4) is of a rectangular structure. The support frame (4) comprises a cross beam (41) and a longitudinal beam (42). The cross beam (41) extends in the left-right direction, and the longitudinal beam (42) extends in the front-back direction. The lower end of the top cover (5) is matched and connected with the upper end of the support frame (4).
3. The flap-type mobile steam collecting device according to claim 2, characterized in that: The top cover (5) includes a top plate (56) and a side plate (57) connected up and down, the side plate (57) includes a front side plate (571), a left side plate (572), a rear side plate (573) and a right side plate (574) connected in sequence, and the fixed cover area (51) and the movable plate installation port (55) are both located in the top plate (56).
4. The flap-type mobile steam collecting device according to claim 3, characterized in that: The top plate (56) is a rectangular structure. The length direction of the top plate (56) is parallel to the front-back direction. The width direction of the top plate (56) is parallel to the left-right direction. The movable plate mounting opening (55) along the front-back direction is located in the middle of the top plate (56). The length of the movable plate mounting opening (55) along the left-right direction is equal to the width of the top plate (56).
5. The flap-type mobile steam collecting device according to claim 1, characterized in that: Two movable flaps (52) are matched and arranged in the movable panel installation opening (55). The two movable flaps (52) are arranged front and back. The movable flaps (52) are connected to the support frame (4) via a rotating shaft (53) and a flap fixing structure (58) in sequence. The rotating shaft (53) extends in the left-right direction.
6. The flap-type mobile steam collecting device according to claim 5, characterized in that: The flap fixing structure (58) comprises a column (581) and a bottom beam (582) connected up and down, the bottom beam (582) extends in the left-right direction, the bottom beam (582) is connected and fixed to the support frame (4), and the upper end of the column (581) is connected to the rotating shaft (53).
7. The flap-type mobile steam collecting device according to claim 6, characterized in that: The flip driving mechanism (54) is located below the movable flap (52). The flip driving mechanism (54) is a hydraulic cylinder. The piston rod of the flip driving mechanism (54) is hinged to the movable flap (52), and the cylinder barrel of the flip driving mechanism (54) is hinged to the bottom beam (582).
8. The flap-type mobile steam collecting device according to claim 5, characterized in that: When the movable flap (52) is in a closed position, the movable flap (52) is in a horizontal state; when the movable flap (52) is in an open position, the movable flap (52) is in an inclined state; each movable flap (52) can be independently controlled to rotate, and a cleaning mechanism (6) is provided on the top cover (5), the cleaning mechanism (6) corresponds to the movable flap (52) one by one, and the cleaning mechanism (6) can remove slag particles on the movable flap (52).
9. A bottom filter tank, characterized in that: The bottom filter tank (1) includes a first tank body (11) and a second tank body (12) arranged on the left and right, and the bottom filter tank also includes the flap-type mobile steam collecting device described in claim 1, and the flap-type mobile steam collecting device can move left and right on the first tank body (11) and the second tank body (12), and the flap-type mobile steam collecting device can close the upper end of the first tank body (11) or the upper end of the second tank body (12).
10. A method for operating the bottom filter tank according to claim 9, characterized in that: The working method of the bottom filter tank comprises the following steps in sequence: Step 1, the flap-type mobile steam collecting device moves to the right onto the second tank body (12), the movable flap (52) is in a closed position, the slag-water mixture enters the second tank body (12) for slag-water filtration, the overhead crane grab bucket (7) grabs the slag particles in the first tank body (11) and transports them to the slag particle collection bucket (13), and during the process of the overhead crane grab bucket (7) moving directly above the second tank body (12), the overhead crane grab bucket (7) is only located directly above the movable flap (52), and the overhead crane grab bucket (7) is not located directly above the fixed sealing area (51); Step 2: The turning driving mechanism (54) drives the movable flap (52) to rotate downward around the rotating shaft (53), so that the slag particles falling on the movable flap (52) can fall into the second pool body (12); Step 3, the flap-type mobile steam collecting device moves to the left onto the first tank body (11), the movable flap (52) is in a closed position, the slag-water mixture enters the first tank body (11) for slag-water filtration, the overhead crane grab bucket (7) grabs the slag particles in the second tank body (12), and transports them to the slag particle collection bucket (13); Step 4: Repeat steps 1 to 3 above.