An industrial steam boiler with scale removal function

Abstract

This utility model discloses an industrial steam boiler with scale removal function, relating to the field of industrial steam boiler technology. It includes a furnace body, an ash hopper, a first cover plate, an ash collection pipe, and a second cover plate. A combustion chamber assembly is provided on the top of the furnace body. The combustion chamber assembly includes an ash hopper, a first cover plate, an ash collection pipe, a feed pipe, an air inlet pipe, a combustion grille, and an air inlet. In use, the first cover plate is opened, and the ignited fuel is fed onto the combustion grille through the feed pipe. An external blower supplies combustion air through the air inlet pipe, forming a uniform airflow distribution through the air inlet, providing sufficient oxygen for the combustion process. The solid residue produced by combustion naturally falls into the ash hopper through the combustion grille for collection and treatment, forming a continuous feeding-combustion-slag removal working cycle. It has an automatic scale removal function, eliminating the need for manual disassembly of the heating tank, making operation convenient and quick, and improving the efficiency of scale removal.

Description

Technical Field

[0001] This utility model relates to the field of industrial steam boiler technology, specifically to an industrial steam boiler with scale removal function. Background Technology

[0002] An industrial steam boiler is a thermal energy device used to generate steam in industrial production processes. It primarily heats water to boiling point through the combustion of fuels (such as coal, natural gas, and oil) or other energy conversion methods to produce steam, providing power, heat, or process steam for industrial production. However, existing industrial steam boilers have some shortcomings, such as: The energy-saving industrial steam boiler described in application number CN202420315249.0 faces significant scale problems in practical use. In industrial environments, the boiler heating tank is in long-term contact with water containing minerals, and scale easily forms on the inner wall. This scale adheres to the heated surface, forming a heat insulation layer, which leads to a decrease in heat transfer efficiency and an increase in fuel consumption. At the same time, scale accumulation may reduce the cross-sectional area of ​​the pipes, increase water circulation resistance, and even cause local overheating, affecting the safe operation of the equipment. Existing cleaning methods mainly rely on manual disassembly of the tank for mechanical scraping or chemical cleaning. Manual cleaning requires shutdown, which is cumbersome and time-consuming, affecting production continuity and potentially causing wear and tear on components due to frequent disassembly. Chemical cleaning requires the use of corrosive agents, which can easily damage the equipment, and subsequent wastewater treatment costs are high. Both methods have the drawbacks of inconvenient operation and high maintenance costs, making it difficult to meet the needs of industrial production for efficient, safe, and sustainable operation. Therefore, the lack of an automated scale cleaning mechanism for this equipment urgently needs to be solved, and technological upgrades through structural optimization are needed to improve the reliability and economy of the equipment. Utility Model Content

[0003] The purpose of this utility model is to provide an industrial steam boiler with scale removal function to solve the problems mentioned in the background art, such as the easy scaling of the inner wall of the heating tank in the existing market, which affects thermal efficiency, increases energy consumption and poses safety hazards, and the existing cleaning methods are cumbersome and costly, and urgently need to be improved.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an industrial steam boiler with scale removal function, comprising a furnace body, an ash hopper, a first cover plate, an ash collection pipe, and a second cover plate; The top of the furnace body is equipped with a combustion chamber assembly, which includes an ash hopper, a first cover plate, an ash collection pipe, a feed pipe, an air inlet pipe, a combustion grid, and an air inlet. In use, the first cover plate is opened, and the ignited fuel is fed onto the combustion grid through the feed pipe. An external blower supplies combustion air through the air inlet pipe, and a uniform airflow is formed through the air inlet to provide sufficient oxygen for the combustion process. The solid residue produced by combustion falls naturally into the ash hopper through the combustion grid for collection and treatment, forming a continuous feeding-combustion-slag removal working cycle.

[0005] As a preferred technical solution of this utility model, the furnace body adopts a vertical structure made of stainless steel. A thickened base is provided at the bottom of the furnace body to reduce heat conduction. An ash collection pipe is opened at the bottom of the furnace body. The ash collection pipe has a square structure and an ash hopper is slidably connected inside the ash collection pipe. A U-shaped handle is fixedly connected to the side of the ash hopper. Using the above technical solution, a square ash collection pipe is opened at the bottom of the furnace body, and an ash hopper is slidably connected inside. A U-shaped handle is fixed on the side of the ash hopper for easy pulling and cleaning.

[0006] As a preferred technical solution of this utility model, the furnace body is fixedly connected to the side of the guide rod, and there are four guide rods symmetrically distributed on both sides of the center line of the furnace body. The top of the furnace body is fixedly connected to the motor, and the output shaft below the motor is fixedly connected to the lead screw. The lead screw is fitted with an electromagnetic ring, and the electromagnetic ring is slidably connected to the guide rod. Using the above technical solution, four guide rods are symmetrically fixed on the side of the furnace body, and a motor is installed on the top, with its output shaft fixedly connected to the lead screw; an electromagnetic ring is fitted around the outer ring of the lead screw, which is slidably connected to the guide rod and can reciprocate in the vertical direction.

[0007] As a preferred technical solution of this utility model, the bottom of the furnace body is connected to the feed pipe, the side of the feed pipe is hinged to the first cover plate, the left side of the first cover plate is vertically fixed with a U-shaped handle, and the bottom of the furnace body is embedded with a combustion grid. Using the above technical solution, a conical flame vent is opened on the surface of the heating tank to optimize the flame flow path and improve heat transfer efficiency; a liquid level pipe is connected to the side to monitor the water level in real time; the first interface for water inlet and the third interface for steam output are connected to the two sides of the top, respectively, and the second interface for smoke exhaust is connected to the center.

[0008] As a preferred technical solution of this utility model, a heating tank is fixedly connected to the inner wall of the furnace body. A fire vent is opened on the surface of the heating tank, and the bottom of the fire vent has a conical structure. A liquid level pipe is connected to the side of the heating tank. The first interface and the third interface are respectively connected to the two sides of the top of the heating tank. The center of the top of the heating tank is connected to the second interface. A scraper is slidably connected inside the heating tank. The bottom of the heating tank is connected to the fourth interface, which is used for sewage discharge. Using the above technical solution, a scraper is slidably connected to the inner wall of the heating tank. The scraper and the electromagnetic ring are linked by magnetic attraction to form a permanent magnet, and the scraper has an internal iron core. When the motor drives the lead screw to rotate, the electromagnetic ring drives the scraper to slide up and down along the inner wall of the heating tank to scrape off the scale. The edge of the scraper is made of heat-resistant elastic rubber material, which fits tightly against the inner wall of the heating tank to ensure the descaling effect while avoiding scratching the tank.

[0009] As a preferred technical solution of this utility model, the feed pipe below the furnace body is an inclined structure, and the first cover plate of the feed pipe is an upward-opening structure. Using the above technical solution, the feed pipe has an inclined structure, the first cover plate adopts an upward opening and closing mechanism, and is equipped with a U-shaped handle on the side to facilitate rapid fuel injection.

[0010] As a preferred embodiment of this utility model, the lower part of the ash collection pipe of the furnace body is configured as an open structure, and the second cover plate on the side of the ash collection pipe is configured as an upward-turning structure.

[0011] The above technical solution features an open structure below the ash collection pipe and an upward-opening design for the second side cover, further enhancing the convenience of slag removal.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. It has an automatic scale removal function, eliminating the need for manual disassembly of the heating tank. It is convenient and quick to operate, improving the efficiency of scale removal.

[0013] 2. The scraper plate fits tightly against the inner wall of the heating tank, effectively removing scale while avoiding scratching the inner wall of the heating tank, thus extending the service life of the boiler.

[0014] 3. The magnetic connection strength between the electromagnetic ring and the scraper is adjustable, which can adapt to the cleaning needs of scale of different thicknesses.

[0015] 4. A drain outlet is provided at the bottom of the heating tank to facilitate the removal and cleaning of scale. Attached Figure Description

[0016] Figure 1 This is a side view of the structure of this utility model; Figure 2 This is a schematic diagram of the furnace body and the first cover plate of this utility model; Figure 3 This is a side view of the cross-sectional structure of this utility model; Figure 4 This is a side view of the cross-sectional structure of the furnace body of this utility model; Figure 5 This is a side view of the cross-sectional structure of the heating tank of this utility model; Figure 6 This is a schematic diagram of the liquid level tube and heating tank structure of this utility model; Figure 7 This is a side view of the structure of Embodiment 2 of this utility model; Figure 8 This is a side view structural diagram of Embodiment 3 of the present utility model.

[0017] In the diagram: 1. Furnace body; 2. Ash hopper; 3. First cover plate; 4. Ash collection pipe; 5. Feed pipe; 6. Air inlet pipe; 7. Guide rod; 8. Electromagnetic ring; 9. First interface; 10. Motor; 11. Second interface; 12. Third interface; 13. Fourth interface; 14. Lead screw; 15. Liquid level pipe; 16. Heating tank; 17. Combustion grid; 18. Air inlet; 19. Flame vent; 20. Scraper; 21. Second cover plate. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-8 The present invention provides an industrial steam boiler with scale removal function. Example 1

[0020] For details, please refer to the following: Figures 1-6 It includes a furnace body 1, an ash hopper 2, a first cover plate 3, an ash collection pipe 4, a feed pipe 5, an air inlet pipe 6, a guide rod 7, an electromagnetic ring 8, a first interface 9, a motor 10, a second interface 11, a third interface 12, a fourth interface 13, a lead screw 14, a liquid level pipe 15, a heating tank 16, a combustion grille 17, an air inlet 18, a fire vent 19, a scraper 20, and a second cover plate 21; The top of the furnace body 1 is equipped with a combustion chamber assembly, which includes an ash hopper 2, a first cover plate 3, an ash collection pipe 4, a feed pipe 5, an air inlet pipe 6, a combustion grid 17, and an air inlet 18. In use, the first cover plate 3 is opened, and the ignited fuel is fed onto the combustion grid 17 through the feed pipe 5. An external blower is connected to deliver combustion air through the air inlet pipe 6, and a uniform airflow is formed through the air inlet 18 to provide sufficient oxygen for the combustion process. The solid residue produced by combustion falls naturally into the ash hopper 2 through the combustion grid 17 for collection and treatment, forming a continuous feeding-combustion-slag removal working cycle. The furnace body 1 adopts a vertical structure made of stainless steel. The bottom of the furnace body 1 is equipped with a thickened base to reduce heat conduction. A ash collection pipe 4 is opened at the bottom of the furnace body 1. The ash collection pipe 4 has a square structure and the ash hopper 2 is slidably connected inside the ash collection pipe 4. A U-shaped handle is fixedly connected to the side of the ash hopper 2 to facilitate the extraction and cleaning of the ash hopper 2. A guide rod 7 is fixedly connected to the side of the furnace body 1. There are four guide rods 7 symmetrically distributed on both sides of the center line of the furnace body 1. A motor 10 is fixedly connected to the top of the furnace body 1. The output shaft of the motor 10 is fixedly connected to the lead screw 14. An electromagnetic ring 8 is fitted on the outer ring of the lead screw 14. The electromagnetic ring 8 is slidably connected to the guide rod 7. The motor 10 drives the lead screw 14 to rotate, which can make the electromagnetic ring 8 move up and down along the guide rod 7, thereby driving the scraper 20 in the heating tank 16. The furnace body 1 is connected to the bottom of the feed pipe 5, and the feed pipe 5 is hinged to the side of the first cover plate 3. The left side of the first cover plate 3 is vertically fixed with a U-shaped handle to facilitate the opening and closing of the first cover plate 3. The furnace body 1 is embedded with a combustion grid 17. A heating tank 16 is fixedly connected to the inner wall of the furnace body 1. A flame vent 19 is opened on the surface of the heating tank 16, and the bottom of the flame vent 19 is a conical structure, which is conducive to the passage of flame and the conduction of heat. The side of the heating tank 16 is connected to a liquid level pipe 15, which can monitor the liquid level in the heating tank 16 in real time. The top two sides of the heating tank 16 are connected to the first interface 9 and the third interface 12 respectively. The center of the top of the heating tank 16 is connected to the second interface 11. A scraper 20 is slidably connected inside the heating tank 16. The scraper 20 is made of corrosion-resistant rubber, and its edge is tightly fitted to the inner wall of the heating tank 16. The electromagnetic ring 8 is magnetically connected to the scraper 20. When the electromagnetic ring 8 moves up and down, it can drive the scraper 20 to slide up and down inside the heating tank 16, thereby scraping off the scale on the inner wall of the heating tank 16.

[0021] Example 2 For details, please refer to the following: Figure 7 The difference between this embodiment and embodiment one is that the feed pipe 5 below the furnace body 1 is an inclined structure, and the first cover plate 3 of the feed pipe 5 is an upward-opening structure. The feed pipe 5 is an inclined structure, and the first cover plate 3 adopts an upward opening and closing mechanism, which, together with the U-shaped handle on the side, facilitates rapid fuel injection.

[0022] Example 3 For details, please refer to the following: Figure 8 The difference between this embodiment and embodiment two is that the lower part of the ash collection pipe 4 of the furnace body 1 is set as an open structure, and the second cover plate 21 on the side of the ash collection pipe 4 is set as an upward-turning structure. The bottom of the ash collection pipe 4 is an open structure, and the second cover plate 21 on the side adopts an upward opening and closing design to further improve the convenience of slag removal.

[0023] Working principle: When using an industrial steam boiler with scale removal function, first open the first cover plate 3, and put the ignited fuel into the combustion grid 17 through the feed pipe 5. The external blower supplies combustion air through the air inlet pipe 6, and forms a uniform airflow distribution through the air inlet 18 to provide sufficient oxygen for the combustion process. The heat generated by the fuel combustion is transferred to the heating tank 16 through the fire hole 19 to heat the water in the heating tank 16 and generate steam. The solid residue produced by combustion falls naturally into the ash hopper 2 through the combustion grille 17 for collection and treatment. When the ash hopper 2 is full of residue, the second cover plate 21 is opened and the ash hopper 2 is pulled out through the U-shaped handle for cleaning. During the long-term use of the boiler, scale will gradually form on the inner wall of the heating tank 16. At this time, the motor 10 is started, and the motor 10 drives the lead screw 14 to rotate, causing the electromagnetic ring 8 to move up and down along the guide rod 7. The electromagnetic ring 8 drives the scraper 20 to slide up and down inside the heating tank 16 through magnetic connection. The edge of the scraper 20 is in close contact with the inner wall of the heating tank 16, which can effectively scrape off the scale. The scraped scale falls to the bottom of the heating tank 16 and is discharged through the fourth interface 13. The liquid level in the heating tank 16 is monitored in real time by the liquid level pipe 15. When the liquid level is insufficient, water is added to the heating tank 16 through the first interface 9 or the third interface 12.

[0024] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] 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. An industrial steam boiler with scale removal function, comprising a boiler body (1); characterized in that: The furnace body (1) is equipped with a combustion chamber assembly on the top. The combustion chamber assembly includes an ash hopper (2), a first cover plate (3), an ash collection pipe (4), a feed pipe (5), an air inlet pipe (6), a combustion grid (17), and an air inlet (18). When in use, the first cover plate (3) is opened, and the ignited fuel is fed onto the combustion grid (17) through the feed pipe (5). An external blower is connected to deliver combustion air through the air inlet pipe (6), and a uniform airflow is formed through the air inlet (18) to provide sufficient oxygen for the combustion process. The solid residue generated by combustion falls naturally into the ash hopper (2) through the combustion grid (17) for collection and treatment, forming a continuous feeding-combustion-slag removal working cycle.

2. The industrial steam boiler having a scale cleaning function according to claim 1, characterized in that, The furnace body (1) adopts a vertical structure made of stainless steel. The bottom of the furnace body (1) is provided with a thickened base to reduce heat conduction. A ash collection pipe (4) is opened below the furnace body (1). The ash collection pipe (4) has a square structure and an ash hopper (2) is slidably connected inside the ash collection pipe (4). A U-shaped handle is fixedly connected to the side of the ash hopper (2).

3. The industrial steam boiler having a scale cleaning function according to claim 1, wherein The furnace body (1) is fixedly connected to the side of the guide rod (7). There are four guide rods (7) symmetrically distributed on both sides of the center line of the furnace body (1). The top of the furnace body (1) is fixedly connected to the motor (10). The output shaft of the motor (10) is fixedly connected to the lead screw (14). The lead screw (14) is fitted with an electromagnetic ring (8) on its outer ring. The electromagnetic ring (8) is slidably connected to the guide rod (7).

4. An industrial steam boiler with scale removal function according to claim 1, characterized in that, The furnace body (1) is connected to the feed pipe (5) at the bottom. The feed pipe (5) is hinged to the side of the first cover plate (3). The left side of the first cover plate (3) is vertically fixed with a U-shaped handle. The furnace body (1) is embedded with a combustion grille (17).

5. An industrial steam boiler with scale removal function according to claim 1, characterized in that, The inner wall of the furnace body (1) is fixedly connected to the heating tank (16). The heating tank (16) has a fire hole (19) on its surface, and the bottom of the fire hole (19) is a conical structure. The side of the heating tank (16) is connected to the liquid level pipe (15). The top two sides of the heating tank (16) are respectively connected to the first interface (9) and the third interface (12). The center of the top of the heating tank (16) is connected to the second interface (11). The scraper (20) is slidably connected inside the heating tank (16). The bottom of the heating tank (16) is connected to the fourth interface (13), which is used for sewage discharge.

6. An industrial steam boiler with scale removal function according to claim 1, characterized in that, The feed pipe (5) below the furnace body (1) is an inclined structure, and the first cover plate (3) of the feed pipe (5) is an upward-opening structure.

7. An industrial steam boiler with scale removal function according to claim 1, characterized in that, The furnace body (1) has an open structure below the ash collection pipe (4), and the second cover plate (21) on the side of the ash collection pipe (4) is an upward-turning structure.

Images