Anti-blocking device for ash hopper of economizer

Abstract

The utility model relates to the technical field of economizer ash hopper anti-blocking, and discloses an economizer ash hopper anti-blocking device which comprises a scattering mechanism and a flapping mechanism, the scattering mechanism comprises a forward and reverse rotation motor, a screw rod is fixedly installed at the output end of the forward and reverse rotation motor, and the flapping mechanism comprises a fixing frame. A clamping groove and an inserting hole are formed in the outer wall of the fixing frame, through the arranged scattering mechanism and beating mechanism, a screw rod can be driven to rotate forwards and backwards in the ash bucket through forward and backward rotation of a forward and backward rotation motor, the screw rod can generate axial and radial acting force on fly ash in the ash bucket in the rotating process, and the fly ash in the ash bucket is prevented from falling off. Axial acting force pushes fly ash to move towards an outlet of the ash bucket, radial acting force enables fly ash particles to rub and collide with one another, so that the caking or stacking state possibly formed by the fly ash is damaged, the spiral rod drives the flexible belt to rotate when rotating, the elastic ball continuously flaps the outer wall of the ash bucket, and the ash bucket can be effectively prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the field of economizer ash hopper anti-clogging technology, and in particular to an economizer ash hopper anti-clogging device. Background Technology

[0002] The economizer ash hopper is an important component of the boiler system. It is located below the economizer and its main function is to collect the dust that falls from the flue gas due to the settling of fly ash particles during the operation of the economizer. The economizer is a heat exchange device that uses the waste heat of the flue gas at the tail end of the boiler to heat the feedwater. In this process, the dust in the flue gas will be deposited into the ash hopper under the action of gravity.

[0003] The applicant discovered through a search that a Chinese patent discloses "An anti-clogging device for the ash hopper of an economizer in a coal-fired power plant," with publication (announcement) number "CN204404202U." This patent mainly uses an air hammer to vibrate and break down large ash blocks attached to the inner wall of the ash hopper. The ash blocks fall onto a straight-tooth crushing mechanism above the ash hopper throat for further crushing. This not only avoids ash blocks adhering to the inner wall of the ash hopper but also effectively prevents ash hopper blockage. However, this patent cannot be modified to accommodate different ash hopper shapes and lengths. In addition, the crushing mechanism is located at the bottom of the ash hopper and cannot effectively function inside the ash hopper. Therefore, we propose an anti-clogging device for the economizer ash hopper. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-clogging device for the economizer ash hopper, so as to solve the problems mentioned in the background art, which are that the device cannot be modified according to different ash hopper shapes and lengths, and the crushing mechanism is located at the bottom of the ash hopper and cannot function well inside the ash hopper.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging device for the economizer ash hopper, comprising a dispersing mechanism and a tapping mechanism. The dispersing mechanism includes a forward and reverse rotating motor, and a spiral rod is fixedly installed at the output end of the forward and reverse rotating motor. The tapping mechanism includes a fixed frame, and a snap-fit ​​groove and a plug-in hole are provided on the outer wall of the fixed frame. The snap-fit ​​groove is connected to a flexible belt and an elastic ball through the plug-in frame.

[0006] As a preferred embodiment, the outer wall of the spiral rod is provided with a mating threaded hole near the lower end, and a fastening threaded hole is provided at the upper end. Insertion grooves are provided on the outer wall of the spiral rod near the upper, middle and lower sections.

[0007] As a preferred embodiment, the fixing bracket is fixedly installed on the outer wall of the spiral rod near the upper, middle and lower sections, the insertion hole is located inside the snap-fit ​​groove, and the insertion hole coincides with the insertion groove and is the same size.

[0008] As a preferred embodiment, the connector is inserted into the slot, and a pin is fixedly installed on the back of the connector, the size of which is adapted to the connector hole and the slot.

[0009] As a preferred embodiment, one end of the flexible strip is fixedly installed on the front of the connector, and the elastic ball is fixedly installed on the other end of the flexible strip.

[0010] As a preferred embodiment, the upper end of the screw rod is provided with an extension mechanism, the extension mechanism including a docking frame, the bottom of the docking frame being sleeved on the upper end of the screw rod, a limiting piece being fixedly installed inside the docking frame, a first opening penetrating through the surface of the limiting piece, the size of the first opening being consistent with the fastening threaded hole, a fastening bolt being rotatably connected inside the first opening, the fastening bolt being threadedly connected to the fastening threaded hole.

[0011] As a preferred embodiment, a second opening is provided on the outer wall of the docking frame. The size of the second opening is the same as that of the docking threaded hole. A docking bolt is rotatably connected inside the second opening, and the docking bolt is threadedly connected to the docking threaded hole.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. Through the set dispersing and tapping mechanisms, the forward and reverse rotation of the motor can drive the screw rod to rotate in both directions within the ash hopper. During the rotation of the screw rod, it will generate axial and radial forces on the fly ash in the ash hopper. The axial force pushes the fly ash towards the ash hopper outlet, while the radial force causes the fly ash particles to rub and collide with each other, thereby breaking up any agglomerates or accumulations that may form in the fly ash. When the screw rod rotates, it drives the flexible belt to rotate, causing the elastic balls to continuously tap the outer wall of the ash hopper, which can effectively prevent the ash hopper from being blocked.

[0014] 2. The extended mechanism cleverly utilizes the connecting frame to increase the number of screw rods. The number of screw rods can be increased according to the actual length of the ash hopper. In different industrial environments with varying ash hopper lengths, this design meets the anti-clogging requirements. During the screw rod addition process, fastening bolts and connecting bolts are used to securely connect the newly added screw rods to the existing ones. This connection method not only ensures the stability of the entire screw rod system during operation, preventing loosening or displacement during ash mixing in the ash hopper, but also allows operators to easily separate the screw rods by disassembling the bolts when maintenance, replacement, or equipment upgrades are needed. This provides a strong guarantee for the long-term stable use and convenient maintenance of the entire equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the dispersing mechanism of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the striking mechanism of this utility model;

[0018] Figure 4 This is one of the partial structural schematic diagrams of the striking mechanism of this utility model;

[0019] Figure 5 This is the second partial structural schematic diagram of the striking mechanism of this utility model;

[0020] Figure 6 This is an exploded view of the extension mechanism of this utility model.

[0021] In the diagram: 1. Dispersing mechanism; 101. Forward and reverse motor; 102. Helical rod; 103. Threaded hole; 104. Insertion slot; 105. Fastening threaded hole; 2. Beating mechanism; 201. Fixing frame; 202. Snap-fit ​​slot; 203. Insertion hole; 204. Insertion frame; 205. Pin; 206. Flexible belt; 207. Elastic ball; 3. Extension mechanism; 301. Connecting frame; 302. Limiting piece; 303. First opening; 304. Fastening bolt; 305. Second opening; 306. Connecting bolt. Detailed Implementation

[0022] 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. Example 1:

[0023] Please see the appendix Figure 1 - Appendix Figure 5An economizer ash hopper anti-clogging device includes a dispersing mechanism 1 and a tapping mechanism 2. The dispersing mechanism 1 includes a forward and reverse motor 101, and a spiral rod 102 is fixedly installed at the output end of the forward and reverse motor 101. The tapping mechanism 2 includes a fixing frame 201, and a snap-fit ​​groove 202 and a plug-in hole 203 are provided on the outer wall of the fixing frame 201. The snap-fit ​​groove 202 is connected to a flexible belt 206 and an elastic ball 207 through a plug-in frame 204. A mating threaded hole 103 is provided on the outer wall of the spiral rod 102 near its lower end, and a fastening threaded hole 105 is provided at its upper end. The outer wall of the spiral rod 102 near the upper, middle and lower ends... Each of the three sections has a slot 104. The fixing bracket 201 is fixedly installed on the outer wall of the spiral rod 102 near the upper, middle and lower sections. The insertion hole 203 is located inside the snap-fit ​​groove 202. The insertion hole 203 coincides with the insertion groove 104 and is the same size. The insertion bracket 204 is inserted into the snap-fit ​​groove 202. A pin 205 is fixedly installed on the back of the insertion bracket 204. The size of the pin 205 is adapted to the insertion hole 203 and the insertion groove 104. One end of the flexible strip 206 is fixedly installed on the front of the insertion bracket 204, and the elastic ball 207 is fixedly installed on the other end of the flexible strip 206.

[0024] There are at least three sets of fixed frames 201. The spacing between adjacent fixed frames 201 is consistent. At the same time, if the ash hopper is conical, the lengths between adjacent flexible strips 206 are different, so that the elastic ball 207 can hit the inner wall of the ash hopper just right, without getting tangled with the adjacent flexible strips 206.

[0025] Specifically, the forward and reverse rotation of the reversible motor 101 drives the screw rod 102 to rotate in both directions within the ash hopper. During rotation, the screw rod 102 exerts axial and radial forces on the fly ash within the ash hopper. The axial force pushes the fly ash towards the ash hopper outlet, while the radial force causes the fly ash particles to rub and collide with each other, thereby breaking up any agglomerates or accumulations that may form in the fly ash. When the screw rod 102 rotates, it drives the flexible belt 206 to rotate, causing the elastic ball 207 to continuously beat against the outer wall of the ash hopper, effectively preventing the ash hopper from becoming clogged. Example 2:

[0026] Please see the appendix Figure 1 and attached Figure 6Furthermore, based on Embodiment 1, an extension mechanism 3 is provided at the upper end of the spiral rod 102. The extension mechanism 3 includes a docking frame 301. The bottom of the docking frame 301 is sleeved on the upper end of the spiral rod 102. A limiting piece 302 is fixedly installed inside the docking frame 301. A first opening 303 is passed through the surface of the limiting piece 302. The size of the first opening 303 is the same as that of the fastening threaded hole 105. A fastening bolt 304 is rotatably connected inside the first opening 303. The fastening bolt 304 is threadedly connected to the fastening threaded hole 105. A second opening 305 is provided on the outer wall of the docking frame 301. The size of the second opening 305 is the same as that of the docking threaded hole 103. A docking bolt 306 is rotatably connected inside the second opening 305. The docking bolt 306 is threadedly connected to the docking threaded hole 103.

[0027] The limiting piece 302 is used to separate adjacent spiral rods 102, and at the same time facilitates the installation of fastening bolts 304. The connecting bolt 306 is used to connect the spiral rod 102 to the connecting frame 301.

[0028] Specifically, the number of screw rods 102 can be increased by connecting the bracket 301, thereby adapting to ash hoppers of different lengths. The increased screw rods 102 are fixedly connected to the original screw rods 102 by fastening bolts 304 and connecting bolts 306, which also facilitates disassembly.

[0029] Working principle of this utility model: This utility model is an anti-clogging device for the ash hopper of an economizer. First, select the number of spiral rods 102 according to the shape and size of the ash hopper. Fit the connecting frame 301 onto the upper end of the bottom spiral rod 102. Then, tighten the fastening bolts 304 into the fastening threaded holes 105. Next, insert the bottom of the additional spiral rod 102 into the connecting frame 301 and tighten the connecting bolts 306 into the connecting threaded holes 103. Then, insert the pins 205 into the insertion holes 203 and secure the locking grooves 202 of the fixing frame 201, allowing the flexible belts 206 of different lengths to be installed. Mounted on the corresponding fixed frame 201, the forward and reverse motor 101 is started. As the forward and reverse motor 101 rotates, it drives the screw rod 102 to rotate in both directions inside the ash hopper. During the rotation, the screw rod 102 will generate axial and radial forces on the fly ash inside the ash hopper. The axial force pushes the fly ash towards the ash hopper outlet, while the radial force causes the fly ash particles to rub and collide with each other, thereby breaking up any agglomeration or accumulation that may form in the fly ash. When the screw rod 102 rotates, it drives the flexible belt 206 to rotate, causing the elastic ball 207 to continuously beat the outer wall of the ash hopper, which can effectively prevent the ash hopper from being blocked.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. An economizer ash hopper anti-clogging device, comprising a dispersing mechanism (1) and a tapping mechanism (2), characterized in that: The dispersing mechanism (1) includes a forward and reverse motor (101), and a spiral rod (102) is fixedly installed at the output end of the forward and reverse motor (101). The patting mechanism (2) includes a fixed frame (201), and a snap-fit ​​groove (202) and a plug-in hole (203) are provided on the outer wall of the fixed frame (201). The snap-fit ​​groove (202) is connected to a flexible belt (206) and an elastic ball (207) through a plug-in frame (204).

2. The economizer ash hopper anti-clogging device according to claim 1, characterized in that: The outer wall of the spiral rod (102) is provided with a mating threaded hole (103) near the lower end, and a fastening threaded hole (105) is provided at the upper end. The outer wall of the spiral rod (102) is provided with insertion grooves (104) near the upper, middle and lower sections.

3. The economizer ash hopper anti-clogging device according to claim 2, characterized in that: The fixing bracket (201) is fixedly installed on the outer wall of the spiral rod (102) near the upper, middle and lower sections. The insertion hole (203) is located inside the snap-fit ​​groove (202). The insertion hole (203) coincides with the insertion groove (104) and is the same size.

4. The economizer ash hopper anti-clogging device according to claim 3, characterized in that: The connector bracket (204) is inserted into the slot (202), and a pin (205) is fixedly installed on the back of the connector bracket (204). The size of the pin (205) is adapted to the connector hole (203) and the connector slot (104).

5. The economizer ash hopper anti-clogging device according to claim 4, characterized in that: One end of the flexible strip (206) is fixedly installed on the front of the connector (204), and the elastic ball (207) is fixedly installed on the other end of the flexible strip (206).

6. The economizer ash hopper anti-clogging device according to claim 2, characterized in that: An extension mechanism (3) is provided at the upper end of the spiral rod (102). The extension mechanism (3) includes a docking frame (301). The bottom of the docking frame (301) is sleeved on the upper end of the spiral rod (102). A limiting piece (302) is fixedly installed inside the docking frame (301). A first opening (303) is passed through the surface of the limiting piece (302). The size of the first opening (303) is the same as that of the fastening threaded hole (105). A fastening bolt (304) is rotatably connected inside the first opening (303). The fastening bolt (304) is threadedly connected to the fastening threaded hole (105).

7. The economizer ash hopper anti-clogging device according to claim 6, characterized in that: The outer wall of the docking frame (301) is provided with a second opening (305), the size of the second opening (305) is the same as that of the docking threaded hole (103), and a docking bolt (306) is rotatably connected inside the second opening (305), and the docking bolt (306) is threadedly connected to the docking threaded hole (103).

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