Boiler tail fly ash recovery device

Abstract

The utility model belongs to the technical field of boiler production, and particularly relates to a boiler tail fly ash recovery device which comprises a recovery box, and a feeding pipeline and a discharging pipeline are sequentially arranged on the top side wall of the recovery box. An observation window is formed in the surface of the recycling box; a plurality of sliding grooves are formed in the top of the recycling box. A mounting frame is arranged in the sliding groove in a sliding fit mode. A plurality of fixing assemblies are arranged on the surface of the mounting frame; filter cloth is arranged in the middle of the mounting frame; filter holes in the filter cloth are gradually reduced; the filter cloth is connected with the mounting frame through a fixing assembly; a plurality of magnets are fixedly connected to the side wall of the mounting frame; a plurality of magnetic blocks are fixedly connected to the inner wall of the recycling box; the magnet and the magnetic block are correspondingly arranged; the mounting frame can be quickly fixed through cooperation of the magnets and the magnetic blocks, the speed is increased during mounting, meanwhile, the filter holes of the filter cloth can reduce blockage of the filter cloth by particles when fly ash particles are filtered for a long time, and therefore the influence of the particles on the filter cloth is reduced through classified interception.

Description

Technical Field

[0001] This utility model relates to the field of boiler manufacturing technology, specifically a boiler tail fly ash recovery device. Background Technology

[0002] Boiler fly ash is a fine particulate matter produced after pulverized coal is burned in a boiler. It is mainly composed of oxides of silicon, aluminum, iron, etc., and unburned carbon. It is characterized by small particle size, large specific surface area, and high activity, which can cause certain harm to the environment and human health. However, it can also be comprehensively utilized after proper treatment.

[0003] When using the current boiler tail fly ash recovery device, existing boilers that use coal as heating raw material will produce fly ash. Since coal ash clumps together and is easy to recover, fly ash melts and solidifies into particles at high temperatures. Direct discharge of these particles will pollute the air.

[0004] Existing recycling devices use filter cloths to intercept particles inside the fly ash after recycling. However, it has been found that the filter cloths are installed in the recycling equipment with multiple bolts, making them difficult to disassemble quickly when blockages occur, thus affecting the processing rate.

[0005] Therefore, a boiler tail fly ash recovery device is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A boiler tail fly ash recovery device of this utility model includes a recovery box, with an inlet pipe and an outlet pipe sequentially opened on the top side wall of the recovery box; an observation window is opened on the surface of the recovery box; multiple sliding grooves are opened on the top of the recovery box; a mounting frame is slidably fitted inside the sliding grooves; multiple fixing components are provided on the surface of the mounting frame; a filter cloth is provided in the middle of the mounting frame; the filter holes inside the filter cloth are gradually smaller; the filter cloth is connected to the mounting frame through the fixing components; multiple magnets are fixedly connected to the side wall of the mounting frame; multiple magnetic blocks are fixedly connected to the inner wall of the recovery box; the magnets and magnetic blocks are correspondingly arranged; by using the cooperation of the magnets and magnetic blocks, the mounting frame can be quickly fixed, thus speeding up the installation process. Simultaneously, the filter hole design of the filter cloth can reduce particle blockage during long-term filtration of fly ash particles, thereby reducing the impact of particles on the filter cloth through classified interception.

[0008] Preferably, the fixing component includes multiple bolts; the bolts are threaded on the mounting bracket; a fixing plate is rotatably connected to the center of each bolt; the fixing plate and the filter cloth are in contact; when the filter cloth is fixed by using the fixing plate, it can be installed by fixing the four corners, thereby reducing obstruction of the filter cloth's filtration area after installation. At the same time, the filter cloth can be removed by disassembling the bolts for further cleaning, allowing for quick replacement.

[0009] Preferably, a water tank is fixedly connected to the inner wall of the recycling bin; the side wall of the water tank is connected to an inlet and an outlet in sequence; the inlet and outlet are through the recycling bin; by adding a water tank, the low temperature of the water inside the tank can reduce the internal temperature of the fly ash, thereby reducing the hardness of the fly ash particles and reducing frictional damage caused by the high hardness when in contact with the feed pipe.

[0010] Preferably, a pin is fixed to the bottom of the fixing plate; multiple pins are arranged on the fixing plate; by increasing the number of pins, the sharpness of the pins can enter the interior of the filter cloth, thereby making the contact of the pins more stable during fixing and increasing the resistance to lateral movement.

[0011] Preferably, a semiconductor cooler is fixed to the surface of the recycling bin; the output end of the semiconductor cooler is located inside the water tank; by adding a semiconductor cooler, the temperature of the water source inside the water tank can be reduced when the water tank is in use, thereby increasing the usage time and reducing the number of replacements when the water source cools the fly ash.

[0012] Preferably, a ring is fixed to the end of the bolt; the ring and the bolt are correspondingly arranged; by adding the ring, the increased holding area of ​​the ring makes the rotation of the bolt faster.

[0013] The advantages of this utility model are:

[0014] 1. The boiler tail fly ash recovery device of this utility model can quickly fix the mounting frame by using the cooperation of magnets and magnetic blocks, which speeds up the installation process. At the same time, the filter cloth's filter hole setting can reduce the clogging of the filter cloth by particles during long-term filtration of fly ash particles. Thus, the impact of particles on the filter cloth is reduced by classifying and intercepting them.

[0015] 2. The boiler tail fly ash recovery device of this utility model can fix the filter cloth by using a fixing plate. The filter cloth can be installed by fixing it at the four corners, thereby reducing the obstruction of the filter cloth's filtration area after installation. At the same time, the filter cloth can be removed by unscrewing the bolts for further cleaning, so that it can be quickly replaced. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the discharge pipe in this utility model;

[0019] Figure 3 This is a schematic diagram of the water inlet structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting bracket in this utility model;

[0021] Figure 5 This is a schematic diagram of the ejector pin in this utility model.

[0022] In the diagram: 1. Recycling bin; 11. Feed pipe; 12. Discharge pipe; 13. Observation window; 14. Slide; 15. Mounting bracket; 16. Fixing assembly; 17. Filter cloth; 18. Magnet; 19. Magnetic block; 2. Bolt; 21. Fixing plate; 3. Water tank; 31. Water inlet; 32. Water outlet; 4. Ejector pin; 5. Semiconductor cooler; 6. Ring. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a boiler tail fly ash recovery device includes a recovery box 1. The top and side walls of the recovery box 1 are sequentially provided with an inlet pipe 11 and an outlet pipe 12. An observation window 13 is provided on the surface of the recovery box 1. Multiple sliding grooves 14 are provided on the top of the recovery box 1. A mounting frame 15 is slidably fitted inside each sliding groove 14. Multiple fixing components 16 are provided on the surface of the mounting frame 15. A filter cloth 17 is provided in the middle of the mounting frame 15. The filter holes inside the filter cloth 17 are progressively smaller. The filter cloth 17 is connected to the mounting frame 15 via the fixing components 16. Multiple magnets 18 are fixed to the side walls of the mounting frame 15. Multiple magnetic blocks 19 are fixed to the inner wall of the recovery box 1. The magnets 18 and magnetic blocks 19 are correspondingly arranged. During operation, the filter cloth 17 is first installed onto the mounting frame 15 using the fixing components 16. Then, the multiple mounting frames 15 are inserted into the fixing components 16 until they are fully inserted into the sliding grooves 14. When magnet 18 comes into contact with magnetic block 19, it attracts and fixes the mounting frame 15. At this time, the feed pipe 11 can be connected to the boiler fly ash pipe, so that the fly ash enters the recycling box 1 through the feed pipe 11. After entering the recycling box 1, it will come into contact with the filter cloth 17 in sequence. When it comes into contact, the first filter cloth 17 will intercept the larger particles, the second will intercept the medium particles, the third will intercept the small particles, and finally it will leave the recycling box 1 through the discharge pipe 12. When the filter cloth 17 intercepts the particles for a long time, a large number of particles will be attached to its surface. At this time, the mounting frame 15 can be lifted out of the recycling box 1, and then the filter cloth 17 can be cleaned. By using the cooperation of magnet 18 and magnetic block 19, the mounting frame 15 can be quickly fixed, which speeds up the installation process. At the same time, the filter hole setting of the filter cloth 17 can reduce the clogging of the filter cloth 17 by particles when filtering fly ash particles for a long time. Thus, the impact of particles on the filter cloth 17 is reduced by classifying and intercepting them.

[0026] like Figures 2 to 5 As shown, the fixing assembly 16 includes multiple bolts 2; the bolts 2 are threaded onto the mounting frame 15; a fixing plate 21 is rotatably connected to the center of each bolt 2; the fixing plate 21 and the filter cloth 17 are in contact; during operation, when installing the filter cloth 17, the filter cloth 17 is laid on the mounting frame 15, and then a pair of bolts 2 are rotated to move them inward into the mounting frame 15. Simultaneously, as the bolts 2 move, they cause the fixing plate 21 to move closer to the four corners of the filter cloth 17, subsequently contacting and pressing against the four corners of the fixing plate 21, thus securing it. By using the fixing plate 21 to fix the filter cloth 17, the four corners can be fixed during installation, reducing obstruction of the filter cloth 17's filtration area after installation. Furthermore, during cleaning, the filter cloth 17 can be removed by disassembling the bolts 2 for further cleaning, allowing for quick replacement.

[0027] like Figures 2 to 3As shown, a water tank 3 is fixedly connected to the inner wall of the recycling bin 1; the side wall of the water tank 3 is connected to an inlet 31 and an outlet 32 ​​in sequence; the inlet 31 and the outlet 32 ​​are through-holes in the recycling bin 1; during operation, before the fly ash enters the feed pipe 11, the inlet 31 can be connected to a water pump and water can be injected into the water tank 3, so that the water source lowers the temperature of the feed pipe 11, thereby reducing the internal temperature of the fly ash when it enters, thus reducing its hardness and reducing friction on the feed pipe 11 when the fly ash passes through it; by adding the water tank 3, the low temperature of the water source inside the water tank 3 can lower the internal temperature of the fly ash, thereby weakening the hardness of the fly ash particles, thus reducing frictional damage caused by the high hardness when in contact with the feed pipe 11.

[0028] like Figure 5 As shown, a pin 4 is fixedly attached to the bottom of the fixing plate 21; multiple pins 4 are arranged on the fixing plate 21; during operation, when the fixing plate 21 contacts the filter cloth 17, the pin 4 will first contact the filter cloth 17, and then the pin 4 will penetrate into the interior of the filter cloth 17, so that it penetrates into the interior of the filter cloth 17 when the fixing plate 21 clamps it, thereby increasing the contact area; by increasing the number of pins 4, the sharpness of the pins 4 can enter the interior of the filter cloth 17, thereby making the contact of the pins 4 more stable during fixing and increasing the resistance to lateral movement.

[0029] like Figures 1 to 2 As shown, a semiconductor cooler 5 is fixedly attached to the surface of the recycling bin 1; the output end of the semiconductor cooler 5 is located inside the water tank 3; during operation, when the water tank 3 is used to cool the fly ash entering the feed pipe 11, the semiconductor cooler 5 can be activated to cool the water source inside the water tank 3, slowing down the temperature rise of the water source inside the water tank 3; by adding the semiconductor cooler 5, the temperature of the water source inside the water tank 3 can be reduced when the water tank 3 is used, thereby increasing the usage time and reducing the number of replacements when the water source cools the fly ash.

[0030] like Figures 2 to 5 As shown, a ring 6 is fixed to the end of the bolt 2; the ring 6 and the bolt 2 are correspondingly arranged; during operation, when the bolt 2 is rotated, the ring 6 can be gripped, and when the bolt 2 is rotated, the ring 6 will drive the bolt 2 to rotate together. The gripping effect of the ring 6 increases the contact area, thereby speeding up the rotation speed; by adding the ring 6, the increased gripping area of ​​the ring 6 makes the rotation faster when the bolt 2 is rotated.

[0031] Working principle: First, the filter cloth 17 is installed onto the mounting bracket 15 using the fixing component 16. Then, multiple mounting brackets 15 are inserted into the fixing component 16. When fully inserted into the slide groove 14, the magnet 18 will contact the magnetic block 19, thereby attracting and fixing the mounting bracket 15. At this time, the feed pipe 11 can be connected to the boiler fly ash pipe, so that the fly ash enters the recovery box 1 through the feed pipe 11. After entering the recovery box 1, it will come into contact with the filter cloth 17 in sequence. When in contact, the first filter cloth 17 will pick up larger particles. The filter cloth 17 first intercepts particles, then the second intercepts medium-sized particles, and the third intercepts small particles. Finally, the particles exit the recycling bin 1 through the discharge pipe 12. When the filter cloth 17 intercepts particles for a long time, a large number of particles will adhere to its surface. At this time, the mounting frame 15 can be lifted out of the recycling bin 1, and then the filter cloth 17 can be cleaned. When installing the filter cloth 17, lay the filter cloth 17 on the mounting frame 15, and then first rotate a pair of bolts 2 to move them into the mounting frame 15. At the same time, when the bolts 2 move, they will drive the fixing plate 21 to move towards the filter cloth 17. The corners approach each other, and then the four corners of the fixing plate 21 come into contact and are squeezed together, thus fixing the fly ash. Before the fly ash enters the feed pipe 11, the water inlet 31 can be connected to a water pump and water can be injected into the water tank 3. This water source will lower the temperature of the feed pipe 11, thereby reducing the internal temperature of the fly ash when it enters and reducing its hardness. This reduces the friction on the feed pipe 11 when the fly ash passes through it. When the fixing plate 21 contacts the filter cloth 17, the ejector pin 4 will first contact the filter cloth 17, and then the ejector pin 4 will penetrate into the filter cloth 17. The filter cloth 17 is inserted into the filter cloth 17 so that it can be inserted into the filter cloth 17 when it is clamped by the fixing plate 21, thereby increasing the contact area; when the water tank 3 is used to cool the fly ash entering the feed pipe 11, the semiconductor cooler 5 can be started to cool the water source inside the water tank 3, thereby slowing down the temperature rise of the water source inside the water tank 3; when the bolt 2 is rotated, the ring 6 can be held, and when it is rotated, the ring 6 will drive the bolt 2 to rotate together. By holding the ring 6, the contact area can be increased, thereby speeding up the rotation speed.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A boiler back-end fly ash recovery apparatus, characterized by: The system includes a recycling bin (1), with an inlet pipe (11) and an outlet pipe (12) sequentially opened on the top side wall of the recycling bin (1); an observation window (13) is opened on the surface of the recycling bin (1); multiple sliding grooves (14) are opened on the top of the recycling bin (1); a mounting frame (15) is slidably fitted inside the sliding grooves (14); multiple fixing components (16) are provided on the surface of the mounting frame (15); a filter cloth (17) is provided in the middle of the mounting frame (15); the filter holes inside the filter cloth (17) are set to gradually decrease in size; the filter cloth (17) is connected to the mounting frame (15) through the fixing components (16); multiple magnets (18) are fixedly connected to the side wall of the mounting frame (15); multiple magnetic blocks (19) are fixedly connected to the inner wall of the recycling bin (1); the magnets (18) and magnetic blocks (19) are arranged correspondingly.

2. A boiler back-end fly ash recovery apparatus according to claim 1, characterized in that: The fixing component (16) includes a plurality of bolts (2); the bolts (2) are threaded on the mounting bracket (15); a fixing plate (21) is rotatably connected to the middle of the bolts (2); the fixing plate (21) and the filter cloth (17) are in contact.

3. A boiler back-end fly ash recovery apparatus according to claim 2, characterized in that: The inner wall of the recycling bin (1) is fixed with a water tank (3); the side wall of the water tank (3) is connected to an inlet (31) and an outlet (32) in sequence; the inlet (31) and the outlet (32) are through the recycling bin (1).

4. A boiler backpass fly ash recovery apparatus according to claim 3, wherein: The bottom of the fixing plate (21) is fixed with a pin (4); there are multiple pins (4) on the fixing plate (21).

5. A boiler tail fly ash recovery device according to claim 4, characterized in that: A semiconductor cooler (5) is fixed to the surface of the recycling bin (1); the output end of the semiconductor cooler (5) is located inside the water tank (3).

6. A boiler backpass fly ash recovery apparatus according to claim 5, wherein: A ring (6) is fixed to the end of the bolt (2); the ring (6) and the bolt (2) are arranged correspondingly.

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