Low calorific value coal burner with cyclone enhanced combustion booster

Abstract

The utility model discloses a Myanmar low heat value coal powder furnace is with cyclone intensification combustion synergistic device, and the utility model relates to the technical field of industrial production. This Myanmar low heat value coal powder furnace is with cyclone intensification combustion synergistic device, including jar body, the top intercommunication of jar body is provided with feed port, the bottom intercommunication of jar body is provided with the discharge gate, the top of jar body is provided with the drive motor, the inside of jar body is provided with the stirring subassembly, and the first rotating shaft is rotated through drive motor, and the low heat value coal powder in jar body is fully stirred to the stirring rod, breaks the problem that the material distribution is uneven caused by traditional device stirring is not sufficient, lets the coal powder can be mixed evenly, provides the stable material basis for combustion, and simultaneously, the cyclone effect formed in the stirring process strengthens the contact of coal powder and air, promotes the full performance of combustion reaction, improves the condition that low heat value coal powder is difficult to ignite, and the combustion efficiency is low, and improves the energy utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of industrial production technology, specifically to a swirl-enhanced combustion efficiency-enhancing device for low-calorific-value pulverized coal furnaces in Myanmar. Background Technology

[0002] Coal is an important energy source in the energy structure and is widely used in industrial production and domestic heating. Myanmar has a certain amount of coal reserves, but a considerable portion of them are low-calorific-value pulverized coal. This type of low-calorific-value pulverized coal is characterized by low calorific value, high ash content, and low volatile matter. During combustion, it has problems such as difficulty in ignition and low combustion efficiency, which bring many challenges to energy utilization and environmental protection.

[0003] Currently, traditional pulverized coal furnaces used for burning low-calorific-value pulverized coal have revealed many defects in actual operation. In terms of material handling, the stirring mechanism of traditional devices is often relatively simple, and the stirring of pulverized coal is not sufficient, resulting in uneven distribution of pulverized coal in the tank. In some areas, pulverized coal accumulates, while in other areas, the pulverized coal is sparse, which affects the stability and completeness of combustion. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a swirl-enhanced combustion efficiency-enhancing device for low-calorific-value pulverized coal boilers in Myanmar. This device solves the problem of insufficient stirring of pulverized coal in the boiler, which leads to uneven distribution of pulverized coal in the tank, with some areas having pulverized coal accumulation and others having sparse pulverized coal, thus affecting the stability and completeness of combustion.

[0005] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: a cyclone-enhanced combustion efficiency-enhancing device for a low-calorific-value pulverized coal boiler in Myanmar, comprising a tank, wherein a feed inlet is connected to the top of the tank, a discharge outlet is connected to the bottom of the tank, a drive motor is provided at the top of the tank, a stirring assembly is provided inside the tank, and a striking assembly is provided outside the tank; The stirring assembly includes a first rotating shaft, an stirring rod on the outside of the first rotating shaft, a connecting plate at the bottom of the first rotating shaft, and an inclined block at the bottom of the connecting plate to prevent material from accumulating and sticking at the bottom of the tank. A fixing block is located on the outside of the first rotating shaft, and connecting rods are symmetrically arranged on the outside of the fixing block. A first scraper is located on the outside of the connecting rods, and sliding boxes are symmetrically arranged on the outside of the fixing block. A spring is located inside the sliding box, and a sliding rod is slidably connected inside the sliding box. A second scraper is located at the end of the sliding rod away from the sliding box. The two types of scrapers, which are distributed alternately, can further scrape and clean the inner wall of the tank.

[0006] Preferably, multiple inclined blocks are provided, and the multiple inclined blocks are distributed in an array around the central axis of the connecting plate.

[0007] Preferably, one end of the spring is fixedly connected to the fixing block, and the other end of the spring is fixedly connected to the slide rod, with the first scraper and the second scraper being staggered around the center of the fixing block.

[0008] Preferably, the striking assembly includes a first pulley, a second pulley connected to the first pulley via a belt drive, a second rotating shaft at the bottom of the second pulley, a fixing plate on the outside of the second rotating shaft, a rotating ring inside the fixing plate, a striking block on the outside of the second rotating shaft, the striking block rotating with the rotating shaft and striking the can, and a fixing frame on the outside of the second rotating shaft.

[0009] Preferably, the output end of the drive motor is fixedly connected to the first pulley, the fixing frame is fixed to the outside of the tank, the fixing plate is fixed to the outside of the tank, the fixing frame is U-shaped, and the second rotating shaft passes through one end of the fixing frame and is rotatably connected to the other end.

[0010] Preferably, the ends of the striking blocks are made of rubber, and the striking blocks are staggered symmetrically about the central axis of the second rotating shaft.

[0011] (III) Beneficial Effects This utility model provides a swirl-enhanced combustion efficiency-improving device for low-calorific-value pulverized coal boilers in Myanmar. It has the following beneficial effects: (i) The swirling combustion enhancement device for the low-calorific-value pulverized coal boiler in Myanmar uses a drive motor to rotate the first shaft, which in turn causes the stirring rod to fully stir the low-calorific-value pulverized coal in the tank. This breaks the problem of uneven material distribution caused by insufficient stirring in traditional devices, allowing the pulverized coal to be mixed evenly and providing a stable material basis for combustion. At the same time, the swirling effect formed during the stirring process enhances the contact between the pulverized coal and the air, promotes the full combustion reaction, improves the situation of difficult ignition and low combustion efficiency of low-calorific-value pulverized coal, and improves the energy utilization rate.

[0012] (ii) The swirling combustion enhancement device for the low-calorific-value pulverized coal boiler in Myanmar avoids damage to the tank body from rigid impacts by using the rubber material at the end of the striking blocks in the striking component. The fixing frame provides stable support for the second rotating shaft, reducing vibration and component wear during rotation. The rubber striking blocks, which are symmetrically distributed along the central axis of the second rotating shaft, strike the outside of the tank body evenly during rotation. The vibration further shakes off the material attached to the inner wall, complementing the scraping structure, ensuring the cleanliness of the tank body and maintaining the tank volume and good heat transfer effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-section of the present invention; Figure 3 This is a schematic diagram of the structure of the stirring assembly of this utility model; Figure 4 This is a schematic diagram of the structure of the fixing block of this utility model; Figure 5 This is a schematic diagram of the structure of the striking component of this utility model; Figure 6 This is a schematic diagram of the structure of the second rotating shaft of this utility model.

[0014] In the diagram: 1. Tank body; 2. Inlet; 3. Outlet; 4. Drive motor; 5. Stirring assembly; 6. Striking assembly; 51. First rotating shaft; 52. Stirring rod; 53. Connecting plate; 54. Inclined block; 55. Fixing block; 56. Connecting rod; 57. First scraper; 58. Sliding box; 59. Spring; 510. Sliding rod; 511. Second scraper; 61. First pulley; 62. Second pulley; 63. Second rotating shaft; 64. Fixing plate; 65. Rotating ring; 66. Striking block; 67. Fixing frame. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-6 This utility model provides a technical solution: a cyclone-enhanced combustion efficiency-enhancing device for a low-calorific-value pulverized coal boiler in Myanmar, including a tank 1, a feed inlet 2 connected to the top of the tank 1, a discharge outlet 3 connected to the bottom of the tank 1, a drive motor 4 on the top of the tank 1, a stirring assembly 5 inside the tank 1, and a striking assembly 6 on the outside of the tank 1. The stirring assembly 5 includes a first rotating shaft 51, a stirring rod 52 on the outside of the first rotating shaft 51, a connecting plate 53 at the bottom of the first rotating shaft 51, and an inclined block 54 at the bottom of the connecting plate 53 to prevent material from accumulating and sticking at the bottom of the tank 1. A fixing block 55 is provided on the outside of the first rotating shaft 51, a connecting rod 56 is symmetrically provided on the outside of the fixing block 55, a first scraper 57 is provided on the outside of the connecting rod 56, a sliding box 58 is symmetrically provided on the outside of the fixing block 55, a spring 59 is provided inside the sliding box 58, a sliding rod 510 is slidably connected inside the sliding box 58, and a second scraper 511 is provided at the end of the sliding rod 510 away from the sliding box 58. The two scrapers, which are distributed alternately, can further scrape and clean the inner wall of the tank 1.

[0017] Preferably, multiple inclined blocks 54 are provided, and the multiple inclined blocks 54 are arranged in an array around the central axis of the connecting plate 53. As the connecting plate 53 rotates, the multiple inclined blocks 54 arranged in the array can form a uniform scraping trajectory from the center to the surrounding area. Each inclined block 54 is responsible for pushing material in a specific area. Through the synergistic effect, the material at the bottom of the tank is guided towards the discharge port 3, reducing the probability of local accumulation.

[0018] Preferably, one end of the spring 59 is fixedly connected to the fixing block 55, and the other end of the spring 59 is fixedly connected to the slide rod 510. The first scraper 57 and the second scraper 511 are staggered around the center of the fixing block 55. The fixed connection of the spring 59 ensures that the second scraper 511 works adaptively. When the first rotating shaft 51 rotates, the slide rod 510 slides outward under the action of centrifugal force and compresses the spring 59. The elastic force of the spring 59 will form a reverse buffer, so that the second scraper 511 always adheres to the inner wall of the tank 1 with appropriate pressure. This ensures the scraping effect and avoids damage to the inner wall caused by rigid contact. The staggered distribution of the scrapers completely solves the problem of incomplete cleaning by a single scraper. The first scraper 57 and the second scraper 511 form complementary scraping trajectories during rotation, covering the entire inner wall surface of the tank 1.

[0019] Preferably, the striking component 6 includes a first pulley 61, a second pulley 62 connected to the first pulley 61 via a belt drive, a second rotating shaft 63 at the bottom of the second pulley 62, a fixing plate 64 on the outside of the second rotating shaft 63, a rotating ring 65 inside the fixing plate 64, a striking block 66 on the outside of the second rotating shaft 63, the striking block 66 can rotate with the rotating shaft and strike the can 1, and a fixing frame 67 on the outside of the second rotating shaft 63.

[0020] Preferably, the output end of the drive motor 4 is fixedly connected to the first pulley 61, the fixing frame 67 is fixed to the outside of the tank 1, the fixing plate 64 is fixed to the outside of the tank 1, the fixing frame 67 is set in a U-shape, the second rotating shaft 63 passes through one end of the fixing frame 67 and is rotatably connected to the other end. The rigid connection between the U-shaped fixing frame 67 and the tank 1 provides a stable support for the second rotating shaft 63, preventing the rotating shaft from generating radial sway when rotating at high speed, ensuring the accuracy of the striking position of the striking block 66. The cooperation between the fixing plate 64 and the rotating ring 65 further restricts the axial displacement of the second rotating shaft 63, making the operation of the entire striking assembly 6 more stable and ensuring that the vibration energy is efficiently transmitted to the inside of the tank 1.

[0021] Preferably, the ends of the striking blocks 66 are made of rubber. The striking blocks 66 are staggered and symmetrical about the central axis of the second rotating shaft 63. The choice of rubber material enables flexible striking, which can loosen the material through vibration and avoid rigid impact on the tank 1, reducing equipment noise and wear. The staggered and symmetrical distribution makes the striking force on the tank 1 more uniform, and the vibration wave can spread from the outside of the tank 1 to the inside in all directions.

[0022] When in use, the drive motor 4 is started first, and its output end drives the first belt pulley 61 to rotate. The second belt pulley 62 rotates synchronously through belt transmission, thereby driving the second rotating shaft 63 to run. At this time, the striking component 6 and the stirring component 5 enter the working state at the same time.

[0023] Inside the tank 1, the first rotating shaft 51 in the stirring assembly 5 rotates with the output end of the drive motor 4, driving the external stirring rod 52 to stir and mix the low-calorific-value coal powder entering the tank 1, forming a swirling effect to enhance the fluidity and uniformity of the material. At the same time, the connecting plate 53 at the bottom of the first rotating shaft 51 rotates with it, and multiple inclined blocks 54 distributed in an array around the central axis at the bottom of the connecting plate 53 rotate accordingly, forming a uniform scraping trajectory from the center to the surrounding area. Each inclined block 54 is responsible for pushing the material in a specific area, working together to guide the material at the bottom of the tank 1 toward the discharge port 3, preventing the material from accumulating and sticking at the bottom of the tank.

[0024] For cleaning the inner wall of tank 1, the fixed block 55 outside the first rotating shaft 51 rotates with the shaft, and the connecting rod 56 symmetrically arranged outside it drives the first scraper 57 to rotate, performing preliminary scraping on the inner wall. At the same time, in the sliding box 58 outside the fixed block 55, the sliding rod 510 slides outward under the action of centrifugal force and compresses the spring 59. The elastic force of the spring 59 forms a reverse buffer, so that the second scraper 511 at the end of the sliding rod 510 always adheres to the inner wall of tank 1 with appropriate pressure. Since the first scraper 57 and the second scraper 511 are staggered around the center of the fixed block 55, they form complementary scraping trajectories during rotation, which can fully cover the entire inner wall surface of tank 1, thoroughly clean the residual material, and avoid the adhesion and accumulation on the inner wall.

[0025] Outside the tank 1, the striking assembly 6 operates synchronously. The second rotating shaft 63 is prevented from radial swaying under the stable support of the U-shaped fixing frame 67. Combined with the cooperation of the fixing plate 64 and the rotating ring 65, axial displacement is limited to achieve smooth rotation. The striking blocks 66, which are symmetrically distributed around the central axis, rotate accordingly. The rubber material at the ends achieves flexible striking, which not only loosens the material inside the tank through vibration but also avoids rigid impact on the tank 1. The symmetrical distribution makes the striking force on the tank 1 more uniform. The vibration wave spreads from the outside of the tank 1 to the inside in all directions, further enhancing the looseness and fluidity of the material. It works synergistically with the internal stirring to improve the overall processing effect.

[0026] Through the swirling stirring of the stirring component 5, the bottom scraping and pushing, the inner wall cleaning, and the uniform vibration and loosening of the tapping component 6, this device can effectively solve the problems of easy accumulation and poor fluidity of low-calorific-value pulverized coal, providing a strong guarantee for the full combustion of pulverized coal entering the furnace and improving combustion efficiency.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cyclone-enhanced combustion efficiency-enhancing device for a low-calorific-value pulverized coal boiler in Myanmar, comprising a tank (1), wherein a feed inlet (2) is connected to the top of the tank (1), a discharge outlet (3) is connected to the bottom of the tank (1), and a drive motor (4) is provided at the top of the tank (1), characterized in that: The tank (1) is equipped with a stirring assembly (5) inside and a striking assembly (6) outside. The stirring assembly (5) includes a first rotating shaft (51), a stirring rod (52) is provided on the outside of the first rotating shaft (51), a connecting plate (53) is provided at the bottom of the first rotating shaft (51), and an inclined block (54) is provided at the bottom of the connecting plate (53) to prevent the material at the bottom of the tank (1) from accumulating and sticking. A fixing block (55) is provided on the outside of the first rotating shaft (51), a connecting rod (56) is symmetrically provided on the outside of the fixing block (55), a first scraper (57) is provided on the outside of the connecting rod (56), a sliding box (58) is symmetrically provided on the outside of the fixing block (55), a spring (59) is provided inside the sliding box (58), a sliding rod (510) is slidably connected inside the sliding box (58), and a second scraper (511) is provided at the end of the sliding rod (510) away from the sliding box (58). The two scrapers distributed alternately can further scrape and clean the inner wall of the tank (1).

2. The swirl-enhanced combustion efficiency-enhancing device for low-calorific-value pulverized coal boilers in Myanmar according to claim 1, characterized in that: Multiple inclined blocks (54) are provided, and the multiple inclined blocks (54) are arranged in an array around the central axis of the connecting plate (53).

3. The swirl-enhanced combustion efficiency-enhancing device for low-calorific-value pulverized coal boilers in Myanmar according to claim 1, characterized in that: One end of the spring (59) is fixedly connected to the fixed block (55), and the other end of the spring (59) is fixedly connected to the slide rod (510). The first scraper (57) and the second scraper (511) are staggered around the center of the fixed block (55).

4. The swirl-enhanced combustion efficiency-enhancing device for low-calorific-value pulverized coal boilers in Myanmar according to claim 1, characterized in that: The striking assembly (6) includes a first pulley (61), which is connected to a second pulley (62) via a belt drive. A second rotating shaft (63) is provided at the bottom of the second pulley (62). A fixing plate (64) is provided on the outside of the second rotating shaft (63). A rotating ring (65) is provided inside the fixing plate (64). A striking block (66) is provided on the outside of the second rotating shaft (63). The striking block (66) rotates with the rotating shaft and strikes the can (1). A fixing frame (67) is provided on the outside of the second rotating shaft (63).

5. The swirl-enhanced combustion efficiency-enhancing device for low-calorific-value pulverized coal boilers in Myanmar according to claim 4, characterized in that: The output end of the drive motor (4) is fixedly connected to the first pulley (61), the fixing frame (67) is fixed to the outside of the tank (1), the fixing plate (64) is fixed to the outside of the tank (1), the fixing frame (67) is set in U shape, and the second rotating shaft (63) passes through one end of the fixing frame (67) and is rotatably connected to the other end.

6. The swirl-enhanced combustion efficiency-enhancing device for low-calorific-value pulverized coal boilers in Myanmar according to claim 4, characterized in that: The ends of the striking blocks (66) are made of rubber, and the striking blocks (66) are staggered symmetrical about the central axis of the second rotating shaft (63).

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