A slag extractor gate device

Abstract

The utility model relates to the technical field of the slag conveyor, and disclose a kind of extrusion gate device of slag conveyor, including slag hopper, auxiliary assembly for temporarily using when the maintenance of slag conveyor is set in the inside of slag hopper, auxiliary assembly includes the motor being set in the top of slag hopper, motor output end is provided with stirring rod, stirring rod outside is provided with sleeve, and stirring rod top is provided with extension frame, and extension frame inside is provided with extension groove;Slag hopper bottom is provided with connecting flange, and connecting flange outside is provided with mounting bracket, and mounting bracket inside is provided with through-hole, and the inner wall of mounting bracket is provided with two sliding slots, and two sliding slots inside are provided with extrusion gate, and the bottom of mounting bracket is provided with grating, and the outside of mounting bracket is provided with hydraulic pipe.The utility model can satisfy the safe operation of boiler when the maintenance of scraper slag conveyor by slag hopper, and effectively intercepts slag block, and pre-crushes to slag block, and simultaneously can crush slag block multiple times, ensure the uniformity of crushing, guarantee the stability of scraper slag conveyor operation.

Description

Technical Field

[0001] This utility model relates to the field of slag removal machine technology, specifically to a slag removal machine slag squeezing gate device. Background Technology

[0002] To ensure reliable power generation from thermal power generating units and to guarantee that coal meets the requirements of different operating conditions, thermal power plants currently mostly use blended coal combustion. However, this method has poor adaptability to different types of coal, frequently resulting in coking and slagging. When large pieces of coke fall, they can easily splash up a large amount of water, causing water seal damage, drastic fluctuations in furnace negative pressure, and potentially water explosions. This generates a large amount of water vapor, accompanied by rising dust, causing flame detector flickering or even a maximum thermal failure (MFT). Currently, thermal power plants often install scraper ash removal machines at the bottom of boilers for discharging ash and slag from the boiler bottom.

[0003] The upper part of the scraper slag remover is often isolated from the boiler using a hydraulic shut-off gate structure. Due to coke falling, the hydraulic shut-off gate often suffers from severe scaling, making it impossible to close properly. If the slag remover malfunctions and needs to be moved out for maintenance, it cannot be moved because the shut-off gate is not fully closed, which could potentially cause an unscheduled unit shutdown. In addition, large pieces of coke falling can easily cause a large amount of hot ash and slag to escape from the gaps in the shut-off gate, resulting in burns to personnel and large-scale environmental pollution, seriously affecting the safe operation of the boiler and the personal safety of inspection personnel. Utility Model Content

[0004] The purpose of this utility model is to provide a slag removal machine slag squeezing gate device to solve the problem mentioned in the background art where the hydraulic shut-off gate cannot be closed properly due to scaling, which affects the normal operation of the equipment and also affects boiler operation and inspection personnel.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a slag removal machine slag squeezing gate device, including a slag hopper, wherein an auxiliary component is provided inside the slag hopper for temporary use during slag removal machine maintenance, the auxiliary component including a motor provided at the top of the slag hopper, a stirring rod provided at the output end of the motor, a sleeve provided outside the stirring rod, an extension frame provided at the top of the stirring rod, and an extension groove provided inside the extension frame;

[0006] The bottom of the slag hopper is provided with a connecting flange, the outside of the connecting flange is provided with a mounting bracket, the inside of the mounting bracket is provided with a through hole, the inner wall of the mounting bracket is provided with two sliding grooves, each of the two sliding grooves is provided with a slag squeezing gate, the bottom of the mounting bracket is provided with a grid plate, and the outside of the mounting bracket is provided with a hydraulic pipe.

[0007] Preferably, the slag hopper is located below the slag discharge port, the motor is connected to the top of the slag hopper by bolts, the output end of the motor is connected to the extension frame by a coupling, the extension frame is located at the top of the stirring rod, and the top of the stirring rod extends into the extension groove inside the extension frame and is slidably connected to the inner wall of the extension groove.

[0008] Preferably, the stirring rod is located inside the slag hopper, and the other end extends above the outlet of the slag hopper, and the sleeve is fitted and connected to the outside of the stirring rod.

[0009] Preferably, the connecting flange is a split structure, with the upper flange welded to the bottom of the slag hopper and the lower flange welded to the mounting frame. The upper and lower flanges are connected by bolts, and the bottom outlet of the slag hopper is connected to the through hole in the mounting frame.

[0010] Preferably, the slide grooves are distributed on both sides inside the mounting frame, and the mounting frame is provided with a hydraulic chamber. The hydraulic chamber is connected to an oil pump through a hydraulic pipe, and the slide grooves are in communication with the hydraulic chamber.

[0011] Preferably, one end of the slag-squeezing gate is located in the chute and is slidably connected to the inner wall of the chute, while the other end extends to the through-hole area and is equipped with a protrusion. The protrusions at one end of the two slag-squeezing gates are staggered. The grating plate is connected to the bottom of the mounting frame by bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The slag hopper can be aligned with the boiler slag outlet during slag removal machine maintenance to temporarily store fallen slag chunks. Larger slag chunks can be intercepted and pre-crushed through the slag squeezing gate at the bottom of the slag hopper. At the same time, a high-temperature camera and temperature control detector are installed inside the slag hopper to detect the falling slag chunks in real time and effectively monitor the temperature and size of the slag chunks, thereby preventing slag chunks from splashing and ensuring the normal operation and safety performance of the boiler when the slag removal machine unit is shut down for maintenance.

[0014] 2. After the large slag blocks are crushed by the slag squeezing gate, the crushed slag fragments can be conveyed into the sleeve and lifted by extending the stirring rod close to the slag squeezing gate. At the same time, newly falling slag blocks above the slag hopper can fall into the slag squeezing gate area, avoiding repeated crushing of the same batch of slag blocks and improving the uniformity of slag block crushing in the slag hopper.

[0015] This utility model uses a slag hopper to ensure that the boiler's safe operation is not affected during the maintenance of the scraper slag remover, effectively intercepts slag blocks, pre-crushes the slag blocks, and can crush the slag blocks multiple times to ensure uniform crushing and guarantee the stability of the scraper slag remover's operation. Attached Figure Description

[0016] Figure 1 This is a plan view of the overall structure of the present invention and a sectional view of the interior of the slag hopper;

[0017] Figure 2 This is a structural diagram of the slag hopper of this utility model;

[0018] Figure 3This is a structural diagram showing the separation of the slag hopper, stirring rod, and mounting frame of this utility model;

[0019] Figure 4 This is an enlarged view of part A of this utility model.

[0020] In the diagram: 1. Slag hopper; 2. Motor; 201. Agitator rod; 202. Sleeve; 3. Extension frame; 301. Extension groove; 4. Connecting flange; 5. Mounting bracket; 501. Through hole; 502. Slide groove; 6. Slag extrusion gate; 7. Grating plate; 8. Hydraulic pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figures 1-4 A slag-removing machine slag-squeezing gate device includes a slag hopper 1. The slag hopper 1 contains an auxiliary component for temporary use during slag-removing machine maintenance. The auxiliary component includes a motor 2 mounted on the top of the slag hopper 1. The motor 2 drives a stirring rod 201, causing the stirring rod 201 to rotate. The stirring rod 201 is mounted on the output end of the motor 2. When the stirring rod 201 rotates and contacts the slag material, the slag material is conveyed and lifted within a sleeve 202 through the grooves of the stirring rod 201. A sleeve 202 is mounted outside the stirring rod 201 to restrict the direction of the slag material during lifting. An extension frame 3 is mounted on the top of the stirring rod 201. An extension groove 301 is mounted inside the extension frame 3. The extension frame 3 can connect the motor 2 coupling and the stirring rod 201, enabling them to move in tandem. When energized inside the extension frame 3, the top of the stirring rod 201 can slide and extend within the extension groove 301.

[0023] A connecting flange 4 is provided at the bottom of the slag hopper 1 for connecting the mounting frame 5 to the bottom of the slag hopper 1. The mounting frame 5 is provided outside the connecting flange 4. The mounting frame 5 has a through hole 501 inside for corresponding to the slag outlet at the bottom of the slag hopper 1. The inner wall of the mounting frame 5 is provided with two sliding grooves 502 for receiving the slag extrusion gate 6 and positioning the angle of the slag extrusion gate 6 when it extends and retracts. The slag extrusion gate 6 is provided inside both sliding grooves 502. The slag extrusion gate 6 can control the opening and closing of the bottom of the slag hopper 1. After larger slag blocks are blocked by the grid plate 7, the slag blocks can be squeezed and crushed by extending and retracting the slag blocks. The grid plate 7 is provided at the bottom of the mounting frame 5 to block large slag blocks and prevent them from directly entering the slag remover. The mounting frame 5 is provided with a hydraulic pipe 8 outside the mounting frame 5. The two ends of the hydraulic pipe 8 are connected to the oil pump and the hydraulic chamber inside the mounting frame 5, respectively. Hydraulic oil can be injected into the mounting frame 5 and applied to the slag extrusion gate 6 to drive the slag extrusion gate 6 to slide and extend and retract within the sliding grooves 502.

[0024] In this embodiment: Slag hoppers 1 are installed between the boiler ash discharge port and the ash removal machine. Slag hoppers 1 can pre-store the falling ash blocks and store them during the maintenance of the ash removal machine to ensure the normal operation of the boiler. Cameras and temperature control sensors are installed inside ash hoppers 1 to monitor the ash status and ambient temperature in real time, ensuring operational safety. The upper flange and lower flange facilitate the replacement and maintenance of the ash squeezing gate 6. When ash blocks fall through the bottom of ash hoppers 1 to the bottom grid plate 7 of the mounting frame 5, the grid plate 7 can block large ash blocks, and the hydraulically driven ash squeezing gate 6 slides and extends in the sliding groove 502 in the mounting frame 5 to squeeze and crush the ash blocks in the mounting frame 5, achieving pre-crushing of the ash blocks to ensure that fine ash materials can smoothly enter the ash removal machine. A manual emergency unblocking port can be opened on one side of ash hoppers 1 to facilitate manual unblocking when ash blocks accumulate at the bottom of ash hoppers 1.

[0025] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figures 1-4The slag hopper 1 is located below the slag discharge port. The motor 2 is connected to the top of the slag hopper 1 by bolts. The output end of the motor 2 is connected to the extension frame 3 by a coupling. The extension frame 3 is located at the top of the stirring rod 201, and the top end of the stirring rod 201 extends into the extension groove 301 inside the extension frame 3 and slides against the inner wall of the extension groove 301. The stirring rod 201 is located inside the slag hopper 1, and the other end extends above the outlet of the slag hopper 1. The sleeve 202 is fitted and connected to the outside of the stirring rod 201. The connecting flange 4 is a split structure. The upper flange is welded to the bottom of the slag hopper 1, and the lower flange is welded to the mounting bracket. 5. The upper flange and the lower flange are connected by bolts. The bottom outlet of the slag hopper 1 is connected to the through hole 501 in the mounting frame 5. The sluice 502 are distributed on both sides inside the mounting frame 5. The mounting frame 5 is equipped with a hydraulic chamber. The hydraulic chamber is connected to the oil pump through the hydraulic pipe 8. The sluice 502 is connected to the hydraulic chamber. One end of the slag squeezing gate 6 is located in the sluice 502 and is slidably connected to the inner wall of the sluice 502. The other end extends to the area of ​​the through hole 501 and is equipped with a protrusion. The protrusions at one end of the two slag squeezing gates 6 are staggered. The grid plate 7 is connected to the bottom of the mounting frame 5 by bolts.

[0026] In this embodiment: after the slag block is crushed by the slag extrusion gate 6, the stirring rod 201 is energized so that one end slides and extends within the extension frame 3 and approaches the slag extrusion gate 6 and contacts the slag block. The rotation of the stirring rod 201 carries the slag block to be conveyed and lifted within the sleeve 202, so that the slag block above the slag hopper 1 falls down, ensuring the uniformity of slag block crushing.

[0027] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slag-squeezing gate device for a slag-collecting machine, comprising a slag hopper (1), wherein the slag hopper (1) is provided with auxiliary components for temporary use during maintenance of the slag-collecting machine, characterized in that: The auxiliary component includes a motor (2) installed on the top of the slag hopper (1), a stirring rod (201) installed at the output end of the motor (2), a sleeve (202) installed on the outside of the stirring rod (201), an extension frame (3) installed on the top of the stirring rod (201), and an extension groove (301) installed inside the extension frame (3). The bottom of the slag hopper (1) is provided with a connecting flange (4), the outside of the connecting flange (4) is provided with a mounting bracket (5), the inside of the mounting bracket (5) is provided with a through hole (501), the inner wall of the mounting bracket (5) is provided with two sliding grooves (502), each of the two sliding grooves (502) is provided with a slag squeezing gate (6), the bottom of the mounting bracket (5) is provided with a grid plate (7), and the outside of the mounting bracket (5) is provided with a hydraulic pipe (8).

2. The slag-squeezing gate device for a slag-removing machine according to claim 1, characterized in that: The slag hopper (1) is located below the slag discharge port. The motor (2) is connected to the top of the slag hopper (1) by bolts. The output end of the motor (2) is connected to the extension frame (3) by a coupling. The extension frame (3) is located at the top of the stirring rod (201), and the top of the stirring rod (201) extends into the extension groove (301) inside the extension frame (3) and slides with the inner wall of the extension groove (301).

3. The slag-squeezing gate device for a slag-removing machine according to claim 2, characterized in that: The stirring rod (201) is located inside the slag hopper (1), and the other end extends above the outlet of the slag hopper (1). The sleeve (202) is sleeved and connected to the outside of the stirring rod (201).

4. The slag-squeezing gate device for a slag-removing machine according to claim 1, characterized in that: The connecting flange (4) is a split structure. The upper flange is welded to the bottom of the slag hopper (1), and the lower flange is welded to the mounting frame (5). The upper flange and the lower flange are connected by bolts. The bottom outlet of the slag hopper (1) is connected to the through hole (501) in the mounting frame (5).

5. The slag-squeezing gate device for a slag-removing machine according to claim 1, characterized in that: The slide grooves (502) are distributed on both sides inside the mounting frame (5), and the mounting frame (5) is equipped with a hydraulic chamber. The hydraulic chamber is connected to the oil pump through a hydraulic pipe (8), and the slide grooves (502) are connected to the hydraulic chamber.

6. The slag-squeezing gate device for a slag-removing machine according to claim 1, characterized in that: One end of the slag extrusion gate (6) is located in the chute (502) and is slidably connected to the inner wall of the chute (502). The other end extends to the through hole (501) area and is equipped with a protrusion. The protrusions at one end of the two slag extrusion gates (6) are staggered. The grid plate (7) is connected to the bottom of the mounting bracket (5) by bolts.

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