A clog-resistant coal-fired boiler

Abstract

This utility model discloses an anti-clogging coal-fired boiler, including a fixed frame and a fixed plate located within the fixed frame. A boiler shell is fixedly connected within the fixed frame, and a conical shell is fixedly connected to the bottom of the boiler shell. A slag discharge pipe is fixedly connected to the bottom of the conical shell. A sliding groove is formed on the outer side of the slag discharge pipe, and a slider is slidably connected within the sliding groove. A motor is fixedly connected to the top of the fixed plate, and a disc is keyed to one end of the motor's output shaft. This utility model not only effectively breaks down the "bridging" or "arching" structures that ash and slag may form, preventing ash and slag from accumulating and clogging at the slag discharge port, but also breaks down and guides large pieces of ash and slag within the slag discharge pipe, reducing the adhesion and retention of ash and slag on the inner wall of the slag discharge pipe, further improving the anti-clogging effect. It also prevents ash and slag from leaking from the sliding groove, ensuring the sealing and safety of the device operation.

Description

Technical Field

[0001] This utility model relates to the field of coal-fired boiler technology, and in particular to a coal-fired boiler that is resistant to clogging. Background Technology

[0002] Small coal-fired boilers are an important type of thermal energy equipment, widely used in heating and other fields. However, during their operation, coal combustion produces ash and slag. This ash and slag is prone to bridging or arching at the ash discharge port at the bottom of the boiler due to cooling, compaction, or the presence of sticky components, physically blocking the discharge port and causing a series of problems that seriously affect the normal operation of the boiler.

[0003] Traditional coal-fired boilers typically rely on manual cleaning using tools such as steel bars. However, this method of cleaning the ash discharge port is time-consuming and laborious due to the narrow space at the bottom of the port, which affects continuous production and reduces work efficiency. In order to better address the above problems, promote the development of industry technology, and improve core competitiveness, this application proposes a new composition structure that is different from the existing technology. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-clogging coal-fired boiler.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A clog-resistant coal-fired boiler includes a fixed frame and a fixed plate located within the fixed frame. A boiler shell is fixedly connected within the fixed frame. A conical shell is fixedly connected to the bottom of the boiler shell. A slag discharge pipe is fixedly connected to the bottom of the conical shell. A groove is provided on the outer side of the slag discharge pipe. A slider is slidably connected within the groove. A fixed frame is fixedly connected to the top of the fixed plate. A motor is fixedly connected to the top of the fixed frame. A guide sleeve is fixedly connected to one side of the fixed frame. A disc is keyed to one end of the motor's output shaft. A first connecting rod is rotatably connected to one side of the disc. A second connecting rod is rotatably connected to one end of the first connecting rod, and the second connecting rod is located within the guide sleeve. One end of the second connecting rod is fixedly connected to the slider. A column is fixedly connected to one end of the slider, and the column is located within the slag discharge pipe.

[0006] As a further embodiment of this utility model, a flue pipe is fixedly connected to the top of the boiler shell, a furnace door is opened on the outside of the boiler shell, and an ash removal screen is provided inside the boiler shell.

[0007] As a further embodiment of this utility model, a mounting bracket is fixedly connected to the outer side of the boiler shell, and a thermometer and a pressure gauge are fixedly connected to one side of the mounting bracket.

[0008] As a further improvement of this utility model, a gate is provided on the outer side of the slag discharge pipe.

[0009] As a further embodiment of this utility model, a baffle is fixedly connected to one side of the slider, and the length of the baffle is greater than the length of the groove.

[0010] As a further embodiment of this invention, a cone block is fixedly connected to the top of the column.

[0011] The beneficial effects of this utility model are as follows: 1. This utility model is equipped with a linkage mechanism driven by a motor. The first connecting rod can pull the second connecting rod, thereby pushing the slider to slide up and down along the sliding groove on the outside of the slag discharge pipe. This causes the column connected to the slider to reciprocate up and down inside the slag discharge pipe, which can effectively destroy the "bridging" or "arching" structure that the ash may form and prevent the ash from accumulating and blocking at the slag discharge port.

[0012] 2. This utility model is equipped with a cone block, the top of which is cone-shaped. During the lifting and lowering of the column, the cone block can more efficiently crush and guide large pieces of ash and slag in the slag discharge pipe, reduce the adhesion and retention of ash and slag on the inner wall of the slag discharge pipe, and further improve the anti-clogging effect.

[0013] 3. The baffle on one side of the slider in this utility model can effectively shield the chute, prevent ash and slag from leaking from the chute, and ensure the sealing and safety of the device operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an anti-clogging coal-fired boiler proposed in this utility model; Figure 2 This is a partially enlarged structural diagram of an anti-clogging coal-fired boiler proposed in this utility model; Figure 3 This is a partial cross-sectional view of a coal-fired boiler designed to prevent clogging, as proposed in this utility model. In the diagram: 1. Fixing plate; 2. Fixing frame; 3. Furnace door; 4. Boiler shell; 5. Thermometer; 6. Exhaust pipe; 7. Pressure gauge; 8. Conical shell; 9. Motor; 10. Disc; 11. First connecting rod; 12. Second connecting rod; 13. Sliding block; 14. Slide groove; 15. Ash discharge pipe; 16. Gate; 17. Baffle; 18. Column; 19. Conical block; 20. Ash discharge screen; 21. Guide sleeve. 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 of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] Reference Figures 1-3 A clog-resistant coal-fired boiler includes a fixing frame 2 and a fixing plate 1 located inside the fixing frame 2. The boiler shell 4 is fixed inside the fixing frame 2 by bolts. The bottom of the boiler shell 4 is fixed with a conical shell 8 by bolts. A slag discharge pipe 15 is welded to the bottom of the conical shell 8. A sliding groove 14 is opened on the outside of the slag discharge pipe 15. A slider 13 is slidably connected inside the sliding groove 14. A fixing frame is fixed to the top of the fixing plate 1 by bolts. A motor 9 is fixedly connected to the top of the fixing frame. A guide sleeve 21 is fixedly connected to one side of the fixing frame. A disc 10 is keyed to one end of the output shaft of the motor 9. A first connecting rod 11 is rotatably connected to one side of the disc 10. A second connecting rod 12 is rotatably connected to one end of the first connecting rod 11. The second connecting rod 12 is located inside the guide sleeve 21. One end of the second connecting rod 12 is fixed to the slider 13. A column 18 is welded to one end of the slider 13, and the column 18 is located inside the slag discharge pipe 15. A cone block 19 is fixed to the top of the column 18 by bolts. The sharp structure of the cone block 19 can be easily inserted into the ash accumulation area. As the column 18 moves up and down, its conical surface can guide the ash to disperse to both sides of the inner wall of the slag discharge pipe 15, avoiding excessive accumulation of ash in the central area of ​​the pipe.

[0017] When in use, the motor 9 is started, and the motor 9 drives the disc 10 to rotate. The disc 10 pulls the second connecting rod 12 through the first connecting rod 11, so that the second connecting rod 12 slides along the guide sleeve 21, thereby causing the slider 13 to slide up and down along the slide groove 14. The column 18 connected to the slider 13 then reciprocates and moves up and down in the slag discharge pipe 15. During the up and down process, the column 18 crushes and guides the ash and slag in the pipe, destroys the "bridging" structure of the ash and slag, and prevents the ash and slag from accumulating and clogging at the slag discharge port.

[0018] In this utility model, a flue pipe 6 is welded to the top of the boiler shell 4, and the flue pipe 6 can be connected to the external flue gas treatment equipment pipeline. A furnace door 3 is provided on the outside of the boiler shell 4. A mounting bracket is fixed to the outside of the boiler shell 4 by bolts. A thermometer 5 and a pressure gauge 7 are fixed to one side of the mounting bracket by bolts, which can monitor the temperature and pressure data of the boiler in real time so that the operator can keep abreast of the working status inside the boiler.

[0019] The boiler shell 4 is equipped with an ash discharge screen 20, which can initially filter larger ash particles generated during combustion to prevent them from directly entering the subsequent ash discharge channel and causing blockage risk. It can also reduce wear on the ash discharge pipe 15.

[0020] In particular, a gate 16 is provided on the outside of the slag discharge pipe 15. The gate 16 can be closed when it is necessary to inspect or clean the slag discharge pipe 15 to cut off the slag discharge channel. A baffle 17 is fixed to one side of the slider 13 by bolts. The baffle 17 is an arc-shaped plate that fits the inner wall of the slag discharge pipe 15. The length of the baffle 17 is greater than the length of the chute 14. The baffle 17 can effectively block the chute 14 during the sliding of the slider 13 to prevent the internal coal slag from spilling out.

[0021] Working principle: When the operator opens the furnace door 3, places igniter and coal on the ash discharge screen 20, and uses an external ignition device to ignite the furnace door 3. When the boiler is running, the ash produced after the fuel combustion will be filtered through the ash discharge screen 20 inside the boiler shell 4, fall into the bottom conical shell 8, and finally converge in the upper outlet area of ​​the ash discharge pipe 15. A special container for collecting slag can be placed at the bottom of the fixed plate 1, allowing the slag to be discharged from the bottom of the slag discharge pipe 15. When a blockage occurs, the motor 9 is started, and the output shaft of the motor 9 drives the disc 10 to rotate. The rotational motion of the disc 10 is converted into swinging and pushing / pulling motion through the first connecting rod 11 rotatably connected to one side of it. The other end of the first connecting rod 11 is rotatably connected to the second connecting rod 12, and the end of the second connecting rod 12 is fixed to the slider 13, which is slidably connected in the sliding groove 14 on the outside of the slag discharge pipe 15. Therefore, the continuous rotational motion of the disc 10 is ultimately converted into the linear reciprocating motion of the slider 13 in the sliding groove 14 through the transmission of the first connecting rod 11 and the second connecting rod 12.

[0022] The column 18, welded to the slider 13, extends vertically into the slag discharge pipe 15. A cone 19 is installed on its top. When the slider 13 slides up and down under the drive of the connecting rod, the column 18 and the cone 19 also move synchronously up and down inside the slag discharge pipe 15. During this reciprocating motion, the cone 19 continuously plunges into the ash accumulation. Its conical structure can effectively wedge into and break the solid ash blocks and "bridging" structures that have been formed or are being formed. At the same time, the continuous movement of the cone 19 and the column 18 generates continuous vibration and agitation in the ash, which greatly reduces the static friction and cohesion between the ash, keeping the ash in a loose state so that it can be smoothly discharged through the bottom of the slag discharge pipe 15 under the action of gravity. The gate 16 installed on the outside of the slag discharge pipe 15 is used to control the flow rate and on / off state of the slag discharge, ensuring the safe and reliable operation of the equipment.

[0023] Furthermore, 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 clog-resistant coal-fired boiler, comprising a fixing frame (2) and a fixing plate (1) located within the fixing frame (2), characterized in that, The boiler shell (4) is fixedly connected inside the fixed frame (2). A conical shell (8) is fixedly connected to the bottom of the boiler shell (4). A slag discharge pipe (15) is fixedly connected to the bottom of the conical shell (8). A sliding groove (14) is opened on the outside of the slag discharge pipe (15). A slider (13) is slidably connected inside the sliding groove (14). A fixed frame is fixedly connected to the top of the fixed plate (1). A motor (9) is fixedly connected to the top of the fixed frame. A guide sleeve (21) is fixedly connected to one side of the fixed frame. A disc (10) is keyed to one end of the output shaft of the motor (9). A first connecting rod (11) is rotatably connected to one side of the disc (10). A second connecting rod (12) is rotatably connected to one end of the first connecting rod (11). The second connecting rod (12) is located inside the guide sleeve (21). One end of the second connecting rod (12) is fixed to the slider (13). A column (18) is fixedly connected to one end of the slider (13). The column (18) is located inside the slag discharge pipe (15).

2. The anti-clogging coal-fired boiler according to claim 1, characterized in that, The top of the boiler shell (4) is fixedly connected to a flue pipe (6), a furnace door (3) is opened on the outside of the boiler shell (4), and an ash removal screen (20) is provided inside the boiler shell (4).

3. The anti-clogging coal-fired boiler according to claim 1, characterized in that, A mounting bracket is fixedly connected to the outside of the boiler shell (4), and a thermometer (5) and a pressure gauge (7) are fixedly connected to one side of the mounting bracket.

4. A clog-resistant coal-fired boiler according to claim 3, characterized in that, A gate (16) is provided on the outside of the slag discharge pipe (15).

5. A non-clogging coal-fired boiler according to claim 3, wherein A baffle (17) is fixedly connected to one side of the slider (13), and the length of the baffle (17) is greater than the length of the groove (14).

6. A non-clogging coal-fired boiler according to claim 4, wherein A cone block (19) is fixedly connected to the top of the column (18).

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