A boiler ash discharge port

Abstract

The utility model provides a kind of boiler ash discharge port, belong to waste discharge technical field, the boiler ash discharge port includes: main pipeline, regulating valve, shunt plate assembly, sealing ring sleeve and support base;The main pipeline is conical platform shape, diameter on its upper end is greater than lower end diameter, the top of main pipeline is equipped with inlet, and bottom is equipped with discharge port;The regulating valve is installed at the discharge port of main pipeline, and regulating valve includes valve body and rotary gate, valve body is bolted connection with the discharge port of main pipeline by flange, and through hole is equipped in the geometric center of rotary gate, shaft is inserted into the through hole and is rotatably connected with the two side walls of valve body by bearing;The utility model can solve the technical problems that the existing boiler ash discharge port structure is simple, lacks effective shunting and flow guiding mechanism, leading to ash in the process of discharging easy to produce blockage, scouring and wear, affect discharge efficiency and equipment service life.

Description

Technical Field

[0001] This utility model belongs to the field of waste discharge technology, specifically, it relates to a boiler ash discharge port. Background Technology

[0002] In modern industrial production, boilers, as important thermal energy equipment, are widely used in industries such as power, chemical, and metallurgy. During combustion, boilers produce a large amount of ash and slag byproducts, which need to be discharged promptly and effectively; otherwise, the normal operation and thermal efficiency of the boiler will be affected. Traditional boiler ash and slag discharge ports typically employ simple straight pipe or funnel-shaped structures, lacking effective diversion and guidance mechanisms within the discharge port. In practical applications, due to the uneven size and density of ash and slag particles, and the fact that they often carry heat and moisture, uneven flow of ash and slag is prone to occur during discharge. When the ash and slag flow rate is high, blockages can easily form at the discharge port, affecting normal discharge; when the ash and slag flow velocity is high, it can cause severe erosion and wear on the inner wall of the discharge port, shortening the equipment's service life. Existing discharge port regulating devices often use simple gate valves or ball valves, which are not flexible enough in opening and closing, and their internal flow channel design is unreasonable, easily generating turbulence and dead zones, further exacerbating blockage and wear problems. Furthermore, the support structure of existing discharge ports often lacks strength, and is prone to deformation or loosening during long-term use, affecting the stability and safety of the equipment. To solve these technical problems, the industry urgently needs a boiler ash discharge outlet device with a reasonable structure and complete functions. Utility Model Content

[0003] In view of this, the present invention provides a boiler ash discharge port, which can solve the technical problem that the existing boiler ash discharge ports have simple structures and lack effective diversion and guiding mechanisms, which leads to easy blockage, scouring and wear of ash during the discharge process, affecting discharge efficiency and equipment service life. This utility model is implemented as follows: This utility model provides a boiler ash discharge port, comprising: a main pipe, a regulating valve, a diverter assembly, a sealing ring, and a support base; the main pipe is shaped like a frustum of a cone, with its upper diameter larger than its lower diameter, an inlet at the top, and an outlet at the bottom; the regulating valve is installed at the outlet of the main pipe, and includes a valve body and a rotating gate; the valve body is bolted to the outlet of the main pipe via a flange, and the rotating gate has a through hole at its geometric center, through which a rotating shaft passes and is rotatably connected to the two side walls of the valve body via bearings; the diverter assembly is installed in the middle section of the main pipe, and the diverter assembly includes... The system includes an annular mounting base and multiple sector-shaped diverter plates. The inner diameter of the annular mounting base matches the inner diameter of the main pipeline. The annular mounting base is fixedly connected to the inner wall of the main pipeline by welding. One end of each sector-shaped diverter plate is hinged to the inner circumferential surface of the annular mounting base, and the other end extends towards the central axis of the main pipeline. A sealing ring is fitted onto the connection between the main pipeline and the regulating valve. The sealing ring is made of rubber. A support base is located on the outer bottom of the main pipeline. The support base includes a base plate and multiple support columns. The base plate is circular, and the multiple support columns are evenly distributed along the circumference of the base plate and extend vertically upward. The top of each support column is welded and fixed to the outer wall of the main pipeline.

[0004] The technical advantages of this utility model for a boiler ash discharge port are as follows: The main pipe's truncated cone shape effectively guides ash to flow smoothly from the large-diameter end to the small-diameter end, preventing ash accumulation and blockage within the pipe. The fan-shaped diverter plates in the diverter assembly are installed via a hinged connection, automatically adjusting the opening angle according to the ash flow rate to achieve uniform ash distribution and buffering. The rotating gate design of the regulating valve makes opening and closing operations more flexible, and the connection method of the rotating shaft passing through the through hole ensures the valve's sealing performance and reliability. The rubber material of the sealing ring effectively prevents ash leakage, and the multi-support column structure of the support base provides stable support. The overall structure is reasonable, easy to operate, and provides excellent sealing performance.

[0005] Based on the above technical solution, the boiler ash discharge port of this utility model can be further improved as follows: The main pipe has a wall thickness of 8 mm to 15 mm, is made of Q235 steel, has an upper diameter of 200 mm to 400 mm, a lower diameter of 100 mm to 200 mm, and a total length of 300 mm to 600 mm.

[0006] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By specifying the specific wall thickness range and material selection for the main pipeline, sufficient strength and corrosion resistance are ensured. Q235 steel has good mechanical properties and economy, and can withstand the impact of ash and slag and high-temperature environments. The specific range of the upper and lower diameters and the total length allows for reasonable control of the pipeline's flow capacity and installation dimensions, ensuring smooth ash and slag discharge while facilitating connection and matching with other equipment, thus improving the product's standardization and versatility.

[0007] Furthermore, the rotating gate is disc-shaped, and its diameter matches the inner diameter of the regulating valve body. The thickness of the rotating gate is 10 mm to 20 mm, and the rotating gate is made of stainless steel. One end of the rotating shaft extends to the outside of the valve body and is fixedly connected to a handle. The handle is L-shaped and its length is 150 mm to 250 mm.

[0008] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the disc-shaped design and thickness specification of the rotary gate ensure the valve's sealing performance and durability. The choice of stainless steel material gives the gate excellent corrosion resistance and wear resistance, enabling it to withstand the erosion of ash and slag for a long time without deformation. The design of the rotating shaft extending to the outside of the valve body and connecting to the L-shaped handle makes operation more convenient, and the reasonable range of handle length ensures sufficient operating torque, allowing operators to easily open and close the valve, improving operational efficiency and safety.

[0009] Furthermore, the number of the fan-shaped diverter plates is 6 to 12, the fan angle of each fan-shaped diverter plate is 15 to 45 degrees, the radial length of the fan-shaped diverter plate is 30% to 60% of the inner diameter of the main pipe, and the hinged connection between the fan-shaped diverter plate and the annular mounting base is achieved by a stainless steel pin with a diameter of 5 mm to 10 mm.

[0010] The beneficial effects of adopting the above-mentioned improved scheme are as follows: The rational design of the number and angle of the fan-shaped diverter vanes enables effective ash and slag diversion, avoiding scouring and wear caused by excessively high local flow velocities. The design of a radial length accounting for 30% to 60% of the main pipe's inner diameter ensures the diversion effect without excessively hindering the normal flow of ash and slag. The hinged connection of the stainless steel pins allows the diverter vanes to automatically adjust their angle according to the ash and slag flow rate, exhibiting good self-adaptability. The reasonable range of pin diameter ensures the reliability and durability of the connection, effectively extending the service life of the equipment.

[0011] Furthermore, the cross-section of the annular mounting base is T-shaped. The horizontal portion of the T-shaped cross-section fits against the inner wall of the main pipe, while the vertical portion extends into the main pipe. The height of the vertical portion is 15 mm to 30 mm, and the thickness of the vertical portion is 8 mm to 12 mm.

[0012] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the T-shaped cross-section design of the annular mounting base provides a larger installation contact area and stronger connection strength. The fit design of the horizontal part with the inner wall of the main pipe ensures the stability and sealing of the installation, while the inward extension of the vertical part provides a reliable support point for the flow divider. The reasonable range of height and thickness of the vertical part ensures sufficient strength without excessively occupying the internal space of the pipe, maintaining the smooth flow of ash and slag. The overall structure is compact and reasonable, and installation and maintenance are convenient.

[0013] Furthermore, the number of support columns is 4 to 8, the support columns are cylindrical, the diameter of the support columns is 20 mm to 40 mm, the height of the support columns is 100 mm to 200 mm, the circumferential angle spacing between adjacent support columns is equal, the thickness of the base plate is 10 mm to 20 mm, and the base plate is made of Q235 steel plate.

[0014] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the reasonable design of the number and size of the support columns can provide uniform and stable support force for the entire discharge outlet, avoiding equipment tilting or displacement caused by gravity and vibration. Cylindrical support columns have good bearing capacity and bending strength, and the equidistant spacing between adjacent support columns makes the stress distribution more uniform. The specified thickness and material of the base plate ensure the rigidity and stability of the entire support base. The selection of Q235 steel plate balances strength requirements and economy, giving the equipment good cost-effectiveness and reliability.

[0015] Furthermore, the outer surface of the main pipe is provided with a spiral reinforcing rib, which spirals upward along the axial direction of the main pipe, and the spiral angle of the spiral reinforcing rib is 30 degrees to 60 degrees.

[0016] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the spiral reinforcing ribs significantly improve the overall rigidity and deformation resistance of the main pipeline. Compared with straight reinforcing ribs, the spiral structure can better disperse stress and avoid stress concentration. The spiral angle of 30 to 60 degrees ensures the reinforcement effect without excessively increasing material usage and manufacturing difficulty. The spiral reinforcing ribs can also guide the flow of ash and slag in the pipeline, allowing the ash and slag to flow along the spiral path, reducing direct impact on the pipe wall and extending the service life of the pipeline.

[0017] Compared with existing technologies, the beneficial effects of this utility model on a boiler ash discharge outlet are as follows: This utility model effectively solves the technical problems existing in traditional boiler ash discharge outlets through innovative structural design. The conical shape design of the main pipe, combined with spiral reinforcing ribs and trapezoidal grooves, not only improves structural strength but also optimizes the flow characteristics of ash, significantly reducing blockage. The fan-shaped diverter plates in the diverter assembly adopt a hinged connection, which can automatically adjust the opening angle according to the ash flow rate, achieving uniform ash diversion and buffering, effectively reducing impact and wear on the pipe wall. The rotating gate design of the regulating valve, combined with the arc-shaped guide groove, makes valve operation more flexible, the flow field distribution more uniform, and significantly improves discharge efficiency. The selection of rubber material for the sealing ring and the multi-support column structure design of the support base ensure the sealing and stability of the equipment. Overall, this utility model has significant advantages over existing technologies, including reasonable structure, simple operation, high discharge efficiency, and long service life, providing an advanced and reliable technical solution for boiler ash treatment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of a boiler ash discharge port; Figure 2 A schematic diagram of the internal structure of a boiler ash discharge port; The attached diagram lists the components represented by each number as follows: 10. Main pipeline; 20. Regulating valve; 21. Valve body; 22. Rotary gate; 23. Rotating shaft; 30. Diverter plate assembly; 31. Annular mounting base; 32. Sector-shaped diverter plate; 40. Sealing ring sleeve; 50. Support base; 51. Base plate; 52. Support column. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] like Figure 1-2The diagram shows an embodiment of a boiler ash discharge outlet provided by this utility model. In this embodiment, it includes: a main pipe 10, a regulating valve 20, a flow divider assembly 30, a sealing ring 40, and a support base 50. The main pipe is shaped like a frustum of a cone, with its upper diameter larger than its lower diameter. An inlet is located at the top of the main pipe, and an outlet is located at the bottom. The regulating valve is installed at the outlet of the main pipe and includes a valve body 21 and a rotating gate 22. The valve body is bolted to the outlet of the main pipe via a flange. A through hole is located at the geometric center of the rotating gate, and a rotating shaft 23 passes through the through hole and is rotatably connected to the two side walls of the valve body via bearings. The flow divider assembly is installed inside the main pipe. At the section position, the diverter assembly includes an annular mounting base 31 and multiple fan-shaped diverter plates 32. The inner diameter of the annular mounting base matches the inner diameter of the main pipe. The annular mounting base is fixedly connected to the inner wall of the main pipe by welding. One end of the multiple fan-shaped diverter plates is hinged to the inner circumferential surface of the annular mounting base, and the other end extends towards the central axis of the main pipe. A sealing ring sleeve is fitted at the connection between the main pipe and the regulating valve. The sealing ring sleeve is made of rubber material. The support base is set on the bottom outer side of the main pipe. The support base includes a base plate 51 and multiple support columns 52. The base plate is circular, and the multiple support columns are evenly distributed along the circumference of the base plate and extend vertically upward. The top of the support columns is welded and fixed to the outer wall of the main pipe.

[0022] In the aforementioned technical solution, the wall thickness of the main pipe is 8 mm to 15 mm, the main pipe is made of Q235 steel, the upper diameter of the main pipe is 200 mm to 400 mm, the lower diameter is 100 mm to 200 mm, and the total length of the main pipe is 300 mm to 600 mm.

[0023] Furthermore, in the above technical solution, the rotary gate is disc-shaped, the diameter of the rotary gate matches the inner diameter of the regulating valve body, the thickness of the rotary gate is 10 mm to 20 mm, the rotary gate is made of stainless steel, one end of the rotating shaft extends to the outside of the valve body and is fixedly connected to a handle, the handle is L-shaped, and the length of the handle is 150 mm to 250 mm.

[0024] Furthermore, in the above technical solution, the number of fan-shaped diverter plates is 6 to 12, the fan angle of each fan-shaped diverter plate is 15 to 45 degrees, the radial length of the fan-shaped diverter plate is 30% to 60% of the inner diameter of the main pipe, and the hinged connection between the fan-shaped diverter plate and the annular mounting base is achieved by a stainless steel pin with a diameter of 5 mm to 10 mm.

[0025] Furthermore, in the above technical solution, the cross-section of the annular mounting seat is T-shaped. The horizontal part of the T-shaped cross-section fits against the inner wall of the main pipe, and the vertical part extends into the main pipe. The height of the vertical part is 15 mm to 30 mm, and the thickness of the vertical part is 8 mm to 12 mm.

[0026] Furthermore, in the above technical solution, the number of support columns is 4 to 8, the support columns are cylindrical, the diameter of the support columns is 20 mm to 40 mm, the height of the support columns is 100 mm to 200 mm, the circumferential angle spacing between adjacent support columns is equal, the thickness of the base plate is 10 mm to 20 mm, and the base plate is made of Q235 steel plate.

[0027] First, install the boiler ash discharge port at the boiler's ash discharge location. Secure the entire device to the ground or platform using multiple support columns on the support base, ensuring it is level. Connect the upper inlet of the main pipeline to the boiler's ash discharge pipeline, and connect the lower outlet to the subsequent ash collection device via a regulating valve. During normal discharge operation, first check that the regulating valve is closed, then start the boiler's ash discharge system. Ash enters the main pipeline from the inlet. Due to the truncated cone shape of the main pipeline, the ash gradually accelerates as it flows downwards under gravity. When the ash reaches the diversion plate assembly, multiple fan-shaped diversion plates automatically adjust their opening angle based on the ash flow rate and impact force, achieving uniform ash distribution. After diversion, the ash continues to flow downwards, maintaining a stable flow state through the guiding effect of the trapezoidal grooves, eventually reaching the regulating valve. The operator rotates the valve handle according to the discharge requirements, opening the rotary gate to the appropriate angle, allowing the ash to be smoothly discharged through the arc-shaped guide channel. During the discharge process, the sealing ring ensures no leakage at the connection points, and the spiral reinforcing ribs guarantee the stability of the pipeline structure. After discharge, the regulating valve is completely closed to cut off the flow of ash and slag. Regularly check the tightness of each connection point and clean any remaining ash and slag that may have accumulated in the grooves to ensure the equipment is always in good working condition. The entire operation process is simple and convenient, and can be mastered without professional skills.

[0028] The following is a specific embodiment 1 of this utility model: In this embodiment, the main pipe is made of Q235 high-quality carbon structural steel. The pipe is truncated cone-shaped, with an upper diameter of 320 mm, a lower diameter of 160 mm, a total length of 480 mm, and a wall thickness of 12 mm. Four spiral reinforcing ribs are provided on the outer surface of the pipe. Each reinforcing rib is 15 mm wide, 8 mm high, and has a spiral angle of 45 degrees. The reinforcing ribs are made of the same material as the pipe and are fixed by welding. Twelve trapezoidal grooves are evenly distributed on the inner surface of the pipe. The grooves are arranged parallel to each other along the axial direction, with an upper base width of 15 mm, a lower base width of 10 mm, a depth of 5 mm, and a spacing of 80 mm between adjacent grooves. The valve body of the regulating valve is made of cast steel with an inner diameter of 160 mm. It is connected to the lower end of the main pipe via a DN160 standard flange, which is fixed with 16 M16 bolts. The rotary gate is made of 316 stainless steel, with a diameter of 158 mm and a thickness of 15 mm. A 25 mm diameter through-hole is located at the geometric center of the gate. The rotating shaft is made of 40Cr alloy steel, with a diameter of 24 mm. Both ends of the shaft are connected to the valve body via 6208 deep groove ball bearings. Six arc-shaped guide grooves are set on the inner surface of the valve body, with an arc radius of 32 mm and a depth of 4 mm, evenly distributed at 60-degree intervals along the inner circumference. The annular mounting seat in the diverter assembly is made of 304 stainless steel, with an outer diameter of 318 mm, an inner diameter of 280 mm, a vertical height of 25 mm in the T-shaped cross-section, and a thickness of 10 mm. Eight fan-shaped diverter vanes are provided, each with a fan angle of 30 degrees, a radial length of 120 mm, and a thickness of 5 mm, all made of 304 stainless steel. The diverter vanes are hinged to the mounting seats using 8 mm diameter stainless steel pins, with cotter pins securing both ends of the pins. The sealing ring is made of high-temperature resistant fluororubber, with an inner diameter of 180 mm, an outer diameter of 200 mm, a thickness of 10 mm, and a hardness of 85 Shore A. The base plate of the support base is made of Q235 steel plate, with a diameter of 600 mm and a thickness of 15 mm. Six support columns are installed, made of seamless steel pipe, with an outer diameter of 30 mm, a wall thickness of 4 mm, and a height of 150 mm, evenly distributed at 60-degree intervals along the circumference of the base plate. The total weight of the entire device is approximately 180 kg, suitable for processing boiler ash and slag at temperatures not exceeding 200 degrees Celsius. In practical use, this embodiment can handle ash and slag with a flow rate range of 0.5 to 5 cubic meters per hour, with smooth and unblocked discharge, and stable and reliable equipment operation. The components have high precision fit, are easy to install and debug, and are simple to maintain. The automatic adjustment function of the fan-shaped diverter effectively avoids the impact of flow fluctuations on the discharge effect, and the synergistic effect of the spiral reinforcing ribs and trapezoidal grooves significantly improves the durability of the equipment. The arc-shaped guide channel has a significant flow guiding effect, the valve operation is light and flexible, and the sealing performance is good. The entire device has a service life of over 15 years, making it a high-performance boiler ash and slag discharge device.

[0029] The following is another specific embodiment 2 of this utility model: Embodiment 2 is an optimization and improvement based on Embodiment 1, specifically for high-temperature and high-pressure conditions. The main pipe material is upgraded to heat-resistant alloy steel, capable of withstanding high-temperature ash and slag temperatures up to 400 degrees Celsius. The pipe wall thickness is increased to 15 mm, the number of spiral reinforcing ribs is increased to 6, and the height of each reinforcing rib is increased to 12 mm to provide stronger structural strength. The number of trapezoidal grooves on the inner surface of the pipe is increased to 16, and the groove depth is increased to 8 mm to enhance anti-slip and flow guiding effects. The valve body of the regulating valve is made of high-temperature alloy casting, the thickness of the rotating gate is increased to 20 mm, the shaft is made of high-strength stainless steel, and the bearing is upgraded to a high-temperature bearing, enabling long-term stable operation in high-temperature environments. The number of arc-shaped flow guide grooves is increased to 8, and the depth is increased to 6 mm to further optimize the flow characteristics of high-temperature ash and slag. The material of the diversion plate assembly is upgraded to 310 stainless steel, the thickness of the fan-shaped diversion plate is increased to 8 mm, and the pin diameter is increased to 10 mm to enhance structural stability in high-temperature environments. The sealing ring is made of fluorosilicone rubber with a hardness increased to 90 Shore A, maintaining good elasticity and sealing performance at high temperatures. The support column of the support base is made of thick-walled seamless steel pipe with a wall thickness increased to 6 mm, and a reinforcing plate is added to the bottom of the support column to cope with the effects of thermal expansion and contraction under high-temperature conditions. This improved embodiment is particularly suitable for high-temperature ash and slag discharge from large power plant boilers and industrial boilers, with stronger high-temperature resistance and structural strength, and a service life of over 20 years.

[0030] The following is another specific embodiment 3 of this utility model: Embodiment 3 is a special optimization based on Embodiment 1 for the treatment of corrosive ash slag. The inner and outer surfaces of the main pipe are treated with a corrosion-resistant coating with a thickness of 0.5 mm, effectively resisting corrosion from acidic and alkaline ash slag. The spiral reinforcing ribs and trapezoidal grooves also undergo the same anti-corrosion treatment, ensuring that long-term use will not be affected by corrosion. All components of the regulating valve are made of super austenitic stainless steel, possessing excellent corrosion resistance. The arc-shaped guide groove uses laser cladding technology to form a corrosion-resistant alloy layer on its surface, with a thickness of 1 mm, significantly improving hardness and corrosion resistance. The entire flow divider assembly is made of duplex stainless steel, ensuring both strength requirements and excellent corrosion resistance. The surface of the fan-shaped flow divider is treated with a ceramic coating with a thickness of 0.3 mm, simultaneously resisting corrosion and wear. The sealing ring is made of perfluororubber, possessing extremely strong chemical corrosion resistance, with an operating temperature range of -20 degrees Celsius to 250 degrees Celsius. The base plate and support column of the support base are hot-dip galvanized, with a zinc coating thickness of not less than 75 micrometers. Epoxy anti-corrosion paint is then applied over the zinc coating to form double anti-corrosion protection.

[0031] Furthermore, in the above technical solution, the outer surface of the main pipe is provided with a spiral reinforcing rib, which spirals upward along the axial direction of the main pipe, and the spiral angle of the spiral reinforcing rib is 30 degrees to 60 degrees.

[0032] Specifically, the principle of this utility model is as follows: This utility model adopts a design concept that utilizes multiple technical means in synergy, achieving high efficiency in ash discharge and long service life of the equipment through structural optimization. The truncated cone shape of the main pipeline is based on fluid mechanics principles. The structure of feeding at the large end and discharging at the small end creates a converging flow field, accelerating the flow of ash under the combined action of gravity and fluid pressure, effectively preventing stagnation and accumulation of ash within the pipeline. The fan-shaped diverter plates in the diverter assembly are hinged, automatically adjusting the opening angle using the dynamic pressure generated by the ash flow. When the flow rate is high, the diverter plates are pushed open to a larger angle to increase the flow area; when the flow rate is low, the diverter plates automatically return to maintain an appropriate flow velocity. This adaptive mechanism effectively balances flow regulation and diversion effects. The rotary gate design of the regulating valve, combined with a perforated shaft connection, not only ensures reliable sealing but also makes the valve opening and closing process smoother, avoiding the problem of jamming common in traditional lift gate valves. The spiral reinforcing ribs on the outer surface of the main pipeline are distributed according to the principles of material mechanics, effectively improving the pipeline's bending strength and torsional stiffness. Simultaneously, the spiral structure helps to disperse localized stress concentrations. The trapezoidal groove design on the inner surface increases surface roughness and utilizes boundary layer theory to improve the interaction between ash and the pipe wall, reducing slippage. The arc-shaped guide channel design, based on streamline principles, guides ash along a smooth curved path, minimizing flow resistance and turbulence losses. The entire technical solution, through the organic combination of multiple technical features, achieves optimized control of ash discharge.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A boiler ash discharge outlet, characterized in that, include: The system comprises a main pipeline, a regulating valve, a flow divider assembly, a sealing ring, and a support base. The main pipeline is shaped like a frustum of a cone, with its upper diameter larger than its lower diameter. An inlet is located at the top of the main pipeline, and an outlet is located at the bottom. The regulating valve is installed at the outlet of the main pipeline and includes a valve body and a rotating gate. The valve body is bolted to the outlet of the main pipeline via a flange. A through hole is located at the geometric center of the rotating gate, through which a rotating shaft passes and is rotatably connected to the two side walls of the valve body via bearings. The flow divider assembly is installed in the middle section of the main pipeline and includes an annular mounting base and multiple sector-shaped flow dividers. The inner diameter of the annular mounting base matches the inner diameter of the main pipe. The annular mounting base is fixedly connected to the inner wall of the main pipe by welding. One end of each of the multiple fan-shaped flow dividers is hinged to the inner circumferential surface of the annular mounting base, and the other end extends towards the central axis of the main pipe. The sealing ring is fitted onto the connection between the main pipe and the regulating valve. The sealing ring is made of rubber. The support base is located on the outer side of the bottom of the main pipe. The support base includes a base plate and multiple support columns. The base plate is circular, and the multiple support columns are evenly distributed along the circumference of the base plate and extend vertically upward. The top of the support columns is welded and fixed to the outer wall of the main pipe.

2. The boiler ash discharge port according to claim 1, characterized in that, The main pipe has a wall thickness of 8 mm to 15 mm, is made of Q235 steel, has an upper diameter of 200 mm to 400 mm, a lower diameter of 100 mm to 200 mm, and a total length of 300 mm to 600 mm.

3. A boiler ash discharge port according to claim 2, characterized in that, The rotating gate is disc-shaped, and its diameter matches the inner diameter of the regulating valve body. The thickness of the rotating gate is 10 mm to 20 mm, and the rotating gate is made of stainless steel. One end of the rotating shaft extends to the outside of the valve body and is fixedly connected to a handle. The handle is L-shaped and its length is 150 mm to 250 mm.

4. A boiler ash discharge port according to claim 3, characterized in that, The number of the fan-shaped diverter plates is 6 to 12, the fan angle of each fan-shaped diverter plate is 15 degrees to 45 degrees, the radial length of the fan-shaped diverter plate is 30% to 60% of the inner diameter of the main pipe, and the hinged connection between the fan-shaped diverter plate and the annular mounting base is achieved by a stainless steel pin with a diameter of 5 mm to 10 mm.

5. A boiler ash discharge port according to claim 4, characterized in that, The annular mounting base has a T-shaped cross-section. The horizontal part of the T-shaped cross-section fits against the inner wall of the main pipe, while the vertical part extends into the main pipe. The height of the vertical part is 15 mm to 30 mm, and the thickness of the vertical part is 8 mm to 12 mm.

6. A boiler ash discharge port according to claim 5, characterized in that, The number of support columns is 4 to 8, the support columns are cylindrical, the diameter of the support columns is 20 mm to 40 mm, the height of the support columns is 100 mm to 200 mm, the circumferential angle spacing between adjacent support columns is equal, the thickness of the base plate is 10 mm to 20 mm, and the base plate is made of Q235 steel plate.

7. A boiler ash discharge outlet according to claim 6, characterized in that, The outer surface of the main pipe is provided with a spiral reinforcing rib. The spiral reinforcing rib spirals upward along the axial direction of the main pipe, and the spiral angle of the spiral reinforcing rib is 30 degrees to 60 degrees.

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