Cold slag machine and boiler equipment assembly

Abstract

The utility model provides a kind of cold slag machine and boiler equipment component, the purpose is to solve the technical problems that dust particles in the material cavity of existing disc type cold slag machine are easy to escape.This cold slag machine includes water chamber, sealing mechanism and push mechanism;Water chamber is annular, and multiple are arranged along vertical direction, and gap constituting material cavity is left between two adjacent water chambers;Water chamber is provided with discharge channel communicating its upper and lower surfaces;Sealing mechanism is composed of two annular pieces;Sealing mechanism is provided with four groups, respectively located the upper and lower surfaces of water chamber, and corresponding to the inner and outer ring walls of water chamber;Push mechanism is provided with multiple, and corresponds to material cavity one by one;Push mechanism includes inner ring and outer ring, and the upper and lower sections of inner ring and outer ring are located between the two annular pieces of upper and lower sealing mechanism respectively;Multiple radial extension scraping plates are evenly arranged between inner ring and outer ring.This cold slag machine effectively closes the material cavity between water chamber, thereby avoiding the escape of dust particles in material cavity.

Description

Technical Field

[0001] This utility model relates to the technical field of hot slag cooling devices, specifically to a slag cooler with good sealing performance. Background Technology

[0002] A slag cooler is a device used in fluidized bed and coal-fired boilers to remove bottom ash and utilize its heat. It is an important auxiliary device for fluidized bed and coal-fired boilers, playing a crucial role in ensuring safe and stable boiler operation and improving boiler efficiency. Slag coolers can be classified into various types, including drum slag coolers, vibrating slag coolers, water-cooled slag coolers, and disc slag coolers.

[0003] The disc-type slag cooler mainly consists of multiple annular water chambers, scrapers, cooling water pipes, water flow regulating valves, and a mechanical transmission device. During operation, the injected cooling water flows through the annular water chambers, absorbing and carrying away heat, thus rapidly cooling the hot slag. The transmission principle involves a frequency converter starting the motor, which, via a reducer, drives the scrapers on the main shaft, pushing the hot slag on the upper surface of the water chambers in a circumferential motion. During the process of the scrapers pushing the hot slag and the hot slag falling from the upper surface of the upper water chamber to the upper surface of the lower water chamber, a large amount of dust particles are generated. These dust particles escape from the gaps between adjacent water chambers, causing pollution to the workshop. Summary of the Invention

[0004] The purpose of this invention is to provide a slag cooler with good sealing performance, which can effectively prevent dust particles generated during the slag cooling process from escaping and causing pollution to the workshop.

[0005] Based on the same inventive concept, this utility model also discloses a boiler equipment component.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The slag cooler includes:

[0008] The water chambers are arranged in a ring shape and multiple chambers are arranged vertically, with gaps forming material chambers between two adjacent water chambers; the water chambers are provided with slag discharge channels connecting their upper and lower surfaces.

[0009] The sealing mechanism consists of two ring plates; four sets of the sealing mechanism are respectively located on the upper and lower surfaces of the water chamber and corresponding to the inner and outer ring walls of the water chamber;

[0010] The material pushing mechanism is provided in multiple stages, each corresponding to a material chamber. The material pushing mechanism includes an inner ring and an outer ring, with the upper and lower sections of the inner and outer rings located between two ring plates of the sealing mechanism above and below them, respectively. Multiple radially extending scraper plates are evenly arranged between the inner and outer rings. The material pushing mechanism moves circumferentially along the water chamber under the drive of the driving device.

[0011] Preferably, the slag discharge channel is wider at the top and narrower at the bottom, and is trapezoidal. The opening at the upper end of the slag discharge channel extends radially from the inner ring wall of the water chamber to the outer ring wall.

[0012] Preferably, the top plate of the water chamber has undulating heights, forming multiple annular grooves, and the bottom of the scraper plate is adapted to the top plate of the water chamber, having a comb-like structure with concave and convex shapes.

[0013] Preferably, the inner and outer ring walls of the water chamber are alternately provided with radially extending baffles, which divide the water chamber into meandering flow channels; the inlet and outlet of the water chamber are respectively located on opposite sides of it.

[0014] Preferably, a column is provided at the center of the water chamber, and the pushing mechanism is fixed to the column via a bracket, and the column is driven by a servo motor.

[0015] Preferably, the slag discharge channel of the uppermost water chamber is equipped with a slag inlet pipe, and a slag collection box is installed below the slag discharge channel of the lowermost water chamber.

[0016] Boiler equipment components, including:

[0017] The aforementioned slag cooler and boiler body;

[0018] The slag cooler is located downstream of the slag outlet of the boiler body.

[0019] The beneficial effects of this utility model are mainly reflected in:

[0020] The feeding mechanism of this utility model is provided with an inner ring and an outer ring, with a scraper plate positioned between the inner and outer rings. The upper section of the inner ring is located between the two ring plates of the sealing mechanism on the inner ring wall of the upper water chamber, and the lower section is located between the two ring plates of the sealing mechanism on the inner ring wall of the lower water chamber. Similarly, the upper section of the outer ring is located between the two ring plates of the sealing mechanism on the outer ring wall of the upper water chamber, and the lower section is located between the two ring plates of the sealing mechanism on the outer ring wall of the lower water chamber. The inner ring and its corresponding sealing mechanism, and the outer ring and its corresponding sealing mechanism, respectively form a labyrinth seal. While ensuring that the feeding mechanism can move circumferentially along the water chamber, the material cavity between the water chambers is effectively sealed, thereby preventing dust particles from escaping from the material cavity and causing pollution to the workshop. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This is a cross-sectional schematic diagram of the present invention;

[0023] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0024] Figure 3 A schematic diagram showing the installation of a partition in the water chamber;

[0025] Figure 4 This is a top view of the feeding mechanism;

[0026] Attached reference numerals: 1. Water chamber; 2. Slag discharge channel; 3. Sealing mechanism; 4. Inner ring component; 5. Outer ring component; 6. Scraper; 7. Baffle plate; 8. Column; 9. Slag collection box Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The following is in conjunction with the appendix Figures 1-4 The embodiments of this utility model will be described in detail below.

[0030] This utility model embodiment provides a slag cooler with good sealing performance.

[0031] The slag cooler includes:

[0032] The water chambers 1 are arranged in a ring shape, with multiple chambers arranged vertically, and gaps forming material cavities are left between two adjacent water chambers 1. Each water chamber 1 has a slag discharge channel 2 connecting its upper and lower surfaces. It should be understood that, taking the forward direction of the scraper as the front, the slag discharge channel 2 of the upper water chamber 1 is located immediately in front of the slag discharge channel 2 of its adjacent lower water chamber 1. Hot slag moves approximately 360° across the upper surface of the upper water chamber 1 before falling onto the upper surface of the lower water chamber 1. The water chambers 1 are fixed to the ground by supports.

[0033] The sealing mechanism 3 consists of two ring plates; four sets of the sealing mechanism 3 are respectively located on the upper and lower surfaces of the water chamber 1 and corresponding to the inner and outer ring walls of the water chamber 1.

[0034] The material pushing mechanism is provided in multiple ways, each corresponding to a material chamber; the material pushing mechanism includes an inner ring 4 and an outer ring 5, the upper and lower sections of the inner ring 4 and the outer ring 5 are respectively located between the two ring plates of the sealing mechanism 3 above and below them; multiple radially extending scraper plates 6 are evenly arranged between the inner ring 4 and the outer ring 5; the material pushing mechanism moves circumferentially along the water chamber 1 under the drive of the driving device.

[0035] The embodiments of this utility model are described below:

[0036] The feeding mechanism of this utility model is provided with an inner ring 4 and an outer ring 5, and a scraper 6 is disposed between the inner ring 4 and the outer ring 5. The upper section of the inner ring 4 is located between the two ring plates of the sealing mechanism 3 on the inner ring wall of the upper water chamber 1, and the lower section is located between the two ring plates of the sealing mechanism 3 on the inner ring wall of the lower water chamber 1; the upper section of the outer ring 5 is located between the two ring plates of the sealing mechanism 3 on the outer ring wall of the upper water chamber 1, and the lower section is located between the two ring plates of the sealing mechanism 3 on the outer ring wall of the lower water chamber 1; the inner ring 4 and the corresponding sealing mechanism 3, and the outer ring 5 and the corresponding sealing mechanism 3 respectively constitute a labyrinth seal, which effectively seals the material cavity between the water chambers 1 while ensuring that the feeding mechanism can move circumferentially along the water chamber 1, thereby preventing dust particles in the material cavity from escaping and causing pollution to the workshop.

[0037] As a further optimization of this utility model, the slag discharge channel 2 is wider at the top and narrower at the bottom, forming a trapezoidal shape. The opening at the upper end of the slag discharge channel 2 extends radially from the inner ring wall of the water chamber 1 to the outer ring wall. It should be understood that the opening at the upper end of the slag discharge channel 2 extends between the two ring plates of the sealing mechanism 3. Dust particles trapped between the two ring plates of the sealing mechanism 3 can be discharged through the slag discharge channel 2, thereby avoiding a large accumulation of dust particles between the two ring plates. The trapezoidal shape of the slag discharge channel 2 allows the discharged hot slag and dust particles to fall into the material cavity between the sealing mechanisms 3 below, rather than between the two ring plates of the corresponding sealing mechanism 3 below.

[0038] Furthermore, the top plate of the water chamber 1 has undulating heights, forming multiple annular grooves, and the bottom of the scraper 6 is adapted to the top plate of the water chamber 1, having a comb-like structure with concave and convex top and bottom. It should be understood that setting the top of the water chamber 1 to an undulating structure can increase the heat exchange area between the hot slag and the cooling water in the water chamber 1, thereby improving the heat exchange efficiency and thus improving the cooling effect on the hot slag.

[0039] Furthermore, the inner and outer annular walls of the water chamber 1 are alternately provided with radially extending baffles 7, which divide the water chamber 1 into meandering flow channels; the inlet and outlet of the water chamber 1 are respectively located on opposite sides of it. It should be understood that by dividing the water chamber 1 into meandering flow channels, the baffles 7 can greatly extend the flow path of the cooling water without changing the volume, thereby allowing the cooling water to exchange heat more fully with the hot slag and making fuller use of the cooling water.

[0040] Furthermore, a column 8 is disposed at the center of the water chamber 1, and the pushing mechanism is fixedly connected to the column 8 via a bracket. The column 8 is driven by a servo motor. It should be understood that the servo motor is also equipped with a reducer. The servo motor drives the column 8 to rotate, thereby driving the scraper 6 of the pushing mechanism to move forward along the annular path of the water chamber 1 and push away the hot slag.

[0041] Furthermore, the slag discharge channel 2 of the uppermost water chamber 1 is equipped with a slag inlet pipe, and a slag collection box 9 is provided below the slag discharge channel 2 of the lowermost water chamber 1. It should be understood that hot slag is transported to the uppermost material chamber through the slag inlet pipe, and the slag discharge channel 2 of the uppermost water chamber 1 is also equipped with a sealing cover plate, which has a through hole for the slag inlet pipe to pass through; the cooled slag is discharged from the lowermost material chamber and accumulates in the slag collection box 9.

[0042] Based on the above-disclosed embodiments, this slag cooler can be used as an accessory in boiler equipment components. In other words, the boiler equipment components may include the above-mentioned slag cooler and the boiler equipment body.

[0043] Although specific embodiments of the present invention have been described above, those skilled in the art should understand that various changes or modifications can be made to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the protection scope of the present invention.

Claims

1. A slag cooler, characterized by: include: Water chamber (1) is arranged in a ring shape and multiple water chambers are arranged in a vertical direction. A gap is left between two adjacent water chambers (1) to form a material cavity. The water chamber (1) is provided with a slag discharge channel (2) connecting its upper and lower surfaces. The sealing mechanism (3) consists of two ring plates; the sealing mechanism (3) is provided in four sets, which are located on the upper and lower surfaces of the water chamber (1) and correspond to the inner and outer ring walls of the water chamber (1); Multiple feeding mechanisms are provided, each corresponding to a material cavity; in, The feeding mechanism includes an inner ring (4) and an outer ring (5). The upper and lower sections of the inner ring (4) and the outer ring (5) are respectively located between the two ring plates of the sealing mechanism (3) above and below them. Multiple radially extending scraper plates (6) are evenly arranged between the inner ring (4) and the outer ring (5). The feeding mechanism can move circumferentially along the water chamber (1) under the drive of the driving device.

2. The slag cooler according to claim 1, characterized in that: The slag discharge channel (2) is wider at the top and narrower at the bottom, and is trapezoidal in shape; The opening at the upper end of the slag discharge channel (2) extends radially from the inner ring wall of the water chamber (1) to the outer ring wall.

3. The slag cooler according to claim 1, characterized in that: The top plate of the water chamber (1) is undulating and forms multiple annular grooves; The bottom of the scraper (6) is adapted to the top plate of the water chamber (1) and has a comb-like structure with concave and convex shapes.

4. The slag cooler according to any one of claims 1 to 3, characterized in that: The inner and outer ring walls of the water chamber (1) are alternately provided with radially extending baffles (7), which divide the water chamber (1) into meandering flow channels; The inlet and outlet of the water chamber (1) are respectively located on opposite sides.

5. A slag tap according to claim 4, characterized in that A column (8) is set at the center of the water chamber (1), and the pushing mechanism is fixed to the column (8) through a bracket. The column (8) is driven by a servo motor.

6. A slag tap according to claim 5, characterized in that The slag discharge channel (2) of the uppermost water chamber (1) is equipped with a slag inlet pipe, and a slag collection box (9) is set below the slag discharge channel (2) of the lowermost water chamber (1).

7. A boiler plant assembly characterised in that, include: The cold slag machine according to any one of claims 1-6; and Boiler body; The slag cooler is located downstream of the slag outlet of the boiler body.

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