Large-dip-angle furnace bottom dust removal and ash conveying conveyor
By setting up cooling components and temperature control components in the ash inlet pipe of the dust removal and ash conveyor at the bottom of the furnace, the airbag and humidifier are used to cool down, the problem of damage to the filter bag due to thermal expansion and contraction of high-temperature flue gas is solved, extending the service life of the filter bag and preventing burn through.
Patent Information
- Application Number
- CN202421513465.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The filter bag of the dust removal and ash conveyor at the bottom of the high-inclination furnace becomes hard or brittle due to the thermal expansion and contraction effect of the high-temperature flue gas, which affects its service life and performance, and the high-temperature flue gas may burn through the filter bag.
A large inclination furnace bottom dust removal ash conveyor is designed. By setting cooling components and temperature control components in the ash inlet pipe, the airbag and humidifier can be used to cool the flue gas and prevent the filter bag from being damaged due to thermal expansion and contraction.
It effectively prevents the filter bag from becoming hard or brittle due to high temperature flue gas, extends its service life, and avoids the filter bag burning through caused by excessive flue gas.
Smart Images
Figure CN222925995U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust removal and ash conveying, in particular to a large-inclination furnace-bottom dust removal and ash conveying conveyor. Background Technique
[0002] With the rapid development of industrial production, various furnace-bottom dust removal and ash conveying devices are widely used in fields such as iron and steel, electric power, and chemical industry. Among them, the large-inclination furnace-bottom dust removal and ash conveying conveyor, as an important dust removal device, has the advantages of high conveying efficiency and small floor area, and has received wide attention and application.
[0003] However, in the actual use process, because it is arranged at the furnace bottom, the dust that needs to be conveyed and filtered often carries high-temperature flue gas. When the high-temperature flue gas directly contacts the filter bag of the dust removal and ash conveying conveyor, the thermal expansion and contraction effect generated may cause the filter bag to expand or contract and other deformations, which may further cause the filter bag to become hard and brittle, affecting its service life and performance. And if the flue gas temperature is too high, it may even burn through the filter bag.
[0004] In view of this, this application is specifically proposed. Content of the Utility Model
[0005] The purpose of the utility model is to provide a large-inclination furnace-bottom dust removal and ash conveying conveyor to solve the problems put forward in the above background technique.
[0006] To solve the above technical problems, a large-inclination furnace-bottom dust removal and ash conveying conveyor provided by the utility model includes a filter box, a fan, and a filtering component installed in the filter box. A dust inlet pipe is connected to the front of the filter box. The dust inlet pipe includes a cooling pipe, and a cooling component and a temperature control component are arranged in the cooling pipe. The temperature control component includes a temperature control cavity. One end of an airbag is fixedly connected to one side inside the temperature control cavity, and a trigger switch is arranged on the other side inside the temperature control cavity. The trigger switch is electrically connected to the cooling component.
[0007] Further, the dust inlet pipe further includes a corrugated pipe and a dust inlet. The dust inlet is connected to the side of the cooling pipe close to the furnace bottom. The corrugated pipe is arranged on the other side of the cooling pipe. The dust inlet is funnel-shaped.
[0008] Further, the temperature control cavity is strip-shaped, and the airbag is fixedly connected to the end of the temperature control cavity close to the dust inlet.
[0009] Further, a heat conduction pad is further arranged at the end of the temperature control cavity close to the dust inlet, and the airbag is fixedly connected to the heat conduction pad.
[0010] Furthermore, an interface is provided on the front of the filter box. The air inlet of the fan is fixedly connected to the back of the filter box. The interface is adapted to the cooling pipe. The filter assembly is slidably connected to the top surface of the filter box. The filter assembly includes a frame, and a filter bag and an ash box are arranged in the frame.
[0011] Furthermore, the cooling assembly includes a water pipe interface, which is communicated with a diversion channel. A humidifier is arranged on the diversion channel, and the humidifier is electrically connected to a trigger switch.
[0012] Furthermore, a through hole is provided on one side of the diversion channel close to the inner wall of the cooling pipe. The humidifier is arranged above the through hole. There are multiple through holes, which are arranged at equal intervals in a linear array. The number and position of the humidifiers are adapted to the through holes.
[0013] Furthermore, there are multiple diversion channels, which are arranged at equal intervals in a circumferential array in the cooling pipe. An annular groove is provided between the water pipe interface and the diversion channel. The water pipe interface is communicated with the annular groove, and the annular groove is communicated with all the diversion channels.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] By providing an ash inlet pipe, a cooling assembly and a temperature control assembly, when high-temperature flue gas enters the ash inlet pipe, the airbag will be heated and expanded to abut against the trigger switch. The trigger switch starts the cooling assembly electrically connected thereto. The cooling assembly sprays water mist into the interior of the ash inlet pipe. Through the mixing of the water mist and the flue gas, the temperature of the flue gas is reduced, thereby preventing the temperature of the flue gas from being too high, and preventing the filter bag from shrinking or expanding due to thermal expansion and contraction, becoming brittle, and reducing its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 FIG. 1 is a schematic structural diagram of the device body of a large-inclination furnace bottom dust removal ash conveying conveyor;
[0017] Figure 2 FIG. 2 is a schematic overall structural diagram of the ash inlet pipe of a large-inclination furnace bottom dust removal ash conveying conveyor;
[0018] Figure 3 FIG. 3 is a schematic cross-sectional structural diagram of the ash inlet pipe of a large-inclination furnace bottom dust removal ash conveying conveyor;
[0019] Figure 4 FIG. Figure 3 is an enlarged view of part A in
[0020] In the figure: 1. Filter box; 101. Docking port; 2. Fan; 3. Filter component; 4. Ash inlet pipe; 401. Bellows; 402. Cooling pipe; 403. Ash inlet; 5. Cooling component; 501. Water pipe interface; 502. Annular groove; 503. Shunt channel; 504. Humidifier; 6. Temperature control component; 601. Temperature control cavity; 602. Airbag; 603. Trigger switch; 604. Heat conducting pad. Specific implementation mode
[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0022] Please refer to Figures 1-4 , the present invention provides a technical solution: including a filter box 1, a docking port 101 is opened on the front surface of the filter box 1, the air inlet of the fan 2 is fixedly connected to the back surface of the filter box 1, the docking port 101 is adapted to the cooling pipe 402, the filter component 3 is slidably connected to the top surface of the filter box 1, the filter component 3 includes a frame, and a filter bag and an ash box are arranged in the frame.
[0023] An ash inlet pipe 4 is connected to the front surface of the filter box 1. The ash inlet pipe 4 includes a bellows 401, a cooling pipe 402, and an ash inlet 403. A cooling component 5 and a temperature control component 6 are arranged in the cooling pipe 402. The ash inlet 403 is connected to one side of the cooling pipe 402 close to the furnace bottom, the bellows 401 is arranged on the other side of the cooling pipe 402, the ash inlet 403 is funnel-shaped, the temperature control component 6 includes a temperature control cavity 601, the temperature control cavity 601 is strip-shaped, an airbag 602 is fixedly connected to one end of the temperature control cavity 601 close to the ash inlet 403, and a trigger switch 603 is arranged on the other side inside the temperature control cavity 601. The trigger switch 603 is electrically connected to the cooling component 5.
[0024] By providing the funnel-shaped ash inlet 403, the air inlet range of the ash inlet pipe 4 is enlarged, and the dust at the furnace bottom can be better adsorbed.
[0025] By providing the bellows 401, the connection between the ash inlet pipe 4 and the filter box 1 can be bent and adjusted arbitrarily within a certain range, so that the ash inlet pipe 4 can better adapt to the dust removal and ash transportation operations with different inclinations.
[0026] By setting the temperature control component 6, when the hotter high-temperature flue gas enters the ash inlet 403, the high-temperature flue gas will contact the temperature control chamber 601 and heat it. When the temperature of the temperature control chamber 601 rises, the gas inside the airbag 602 will expand due to the heat, thereby causing the other end of the airbag 602 to expand and contact the trigger switch 603. When the trigger switch 603 is pressed, the cooling component 5 electrically connected to the trigger switch 603 will start synchronously to cool the inside of the cooling tube 402 and the flue gas flowing through the cooling tube 402, thereby preventing the filter bag in the filter component 3 from expanding or contracting due to contact with the flue gas with too high a temperature and being affected by the thermal expansion and contraction effect, thereby causing the filter bag to become hard and brittle, affecting its service life and performance.
[0027] Furthermore, because the airbag 602 is fixedly connected to one end of the temperature control chamber 601 close to the ash inlet 403 , the installation position of the airbag 602 will first contact with the high-temperature flue gas, making the airbag 602 more sensitive to reaction.
[0028] Specifically, a thermal pad 604 is provided at one end of the temperature control chamber 601 close to the ash inlet 403 , and the airbag 602 is fixedly connected to the thermal pad 604 . The thermal pad 604 is ceramic, which is resistant to high temperature and corrosion and has high thermal conductivity.
[0029] By providing a ceramic heat conductive pad 604, the heat conduction between the air bag 602 and the high-temperature smoke is made more rapid, thereby making the triggering of the air bag 602 more sensitive, thereby improving the cooling effect of the device.
[0030] More specifically, the cooling component 5 includes a water pipe interface 501 , which is connected to a diversion channel 503 , on which a humidifier 504 is disposed, and the humidifier 504 is electrically connected to a trigger switch 603 .
[0031] By adopting the above design, when the temperature control component 6 senses that high-temperature flue gas has entered the cooling tube 402, the humidifier 504 will be started to spray water mist into the interior of the cooling tube 402. When the water mist comes into contact with the high-temperature flue gas, it will mix with it to reduce the temperature of the flue gas, thereby preventing the filter bag from being damaged by high temperature.
[0032] See also Figure 2 and Figure 3, Further, through holes are provided on one side of the diversion channel 503 close to the inner wall of the cooling pipe 402. The humidifier 504 is arranged above the through holes. There are multiple through holes, which are arranged at equal intervals in a linear array. The number and positions of the humidifiers 504 are adapted to the through holes. There are multiple diversion channels 503, which are arranged at equal intervals in a circumferential array in the cooling pipe 402. An annular groove 502 is provided between the water pipe interface 501 and the diversion channel 503. The water pipe interface 501 is communicated with the annular groove 502, and the annular groove 502 is communicated with all the diversion channels 503.
[0033] By adopting the above design, the multiple humidifiers 504 are linearly arrayed, and a cooling area can be formed in the cooling pipe 402, thereby preventing the temperature of the high-temperature flue gas from being too high, and the length of the humidifiers 504 arranged in the cooling pipe 402 is too short to effectively cool it. And the humidifiers 504 are divided into multiple groups and arranged in a circumferential array, so that the number of humidifiers 504 distributed in each section is more, and thus the water mist sprayed within a single section is denser, thereby improving the cooling effect of the cooling component 5.
[0034] Working principle:
[0035] During use, place the filter box 1 in a suitable position, place the filtering component 3 in the filter box 1, connect the air extraction port of the fan 2 to the filter box 1, select the length of the corrugated pipe 401 according to the distance between the filter box 1 and the furnace bottom, and select the bendability coefficient of the corrugated pipe 401 according to the inclination angle between the filter box 1 and the furnace bottom. Then connect the two ends of the appropriate corrugated pipe 401 to the docking port 101 and the cooling pipe 402 respectively, place the ash inlet 403 at the furnace bottom, and connect the water pipe to the water pipe interface 501.
[0036] During use, first start the fan 2, and then the fan 2 guides the air to rush into the filter box 1 from the ash inlet 403. After being filtered by the filtering component 3, it enters the fan 2 and is then discharged through the exhaust port of the fan 2. During this process, the dust at the furnace bottom will also rush in with the air, thereby achieving the purpose of dust removal and ash transportation for the furnace bottom with a large inclination angle.
[0037] When relatively hot high-temperature flue gas enters the ash inlet 403, the high-temperature flue gas will contact the temperature control cavity 601 and heat it. When the temperature of the temperature control cavity 601 rises, the gas inside the airbag 602 will expand due to heat, and then the other end of the airbag 602 will expand and press against the trigger switch 603. When the trigger switch 603 is pressed, the humidifier 504 will be started to spray water mist into the inside of the cooling pipe 402. When the water mist contacts the high-temperature flue gas, it will mix with it and reduce the temperature of the flue gas.
[0038] In this way, the flue gas is cooled by water mist to prevent the filter bags in the filter assembly 3 from being deformed due to thermal expansion and contraction effects caused by contact with the flue gas at too high a temperature, such as expansion or contraction, which may further lead to hardening and embrittlement of the filter bags, affecting their service life and performance.
Claims
1. A high-angle furnace bottom dust removal and ash conveyor, comprising a filter box (1) and a fan (2) and a filter assembly (3) installed in the filter box (1), wherein the front of the filter box (1) is connected to an ash inlet pipe (4), characterized in that: The ash inlet pipe (4) comprises a cooling pipe (402), a cooling component (5) and a temperature control component (6) are arranged in the cooling pipe (402), the temperature control component (6) comprises a temperature control chamber (601), one side of the interior of the temperature control chamber (601) is fixedly connected to one end of the air bag (602), and the other side of the interior of the temperature control chamber (601) is provided with a trigger switch (603), and the trigger switch (603) is electrically connected to the cooling component (5).
2. A large-angle furnace bottom dust removal and ash conveyor as claimed in claim 1, characterized in that: The ash inlet pipe (4) further comprises a bellows (401) and an ash inlet (403); the ash inlet (403) is connected to one side of the cooling pipe (402) close to the furnace bottom; the bellows (401) is arranged on the other side of the cooling pipe (402); and the ash inlet (403) is funnel-shaped.
3. A large-angle furnace bottom dust removal and ash conveyor as claimed in claim 2, characterized in that: The temperature control chamber (601) is in the shape of an elongated strip, and the air bag (602) is fixedly connected to one end of the temperature control chamber (601) close to the ash inlet (403).
4. A large-angle furnace bottom dust removal and ash conveyor as claimed in claim 3, characterized in that: A heat-conducting pad (604) is also provided at one end of the temperature-control chamber (601) close to the ash inlet (403), and the airbag (602) is fixedly connected to the heat-conducting pad (604).
5. A large-angle furnace bottom dust removal and ash conveyor as claimed in claim 4, characterized in that: The front of the filter box (1) is provided with a docking port (101); the air inlet of the fan (2) is fixedly connected to the back of the filter box (1); the docking port (101) is adapted to the cooling pipe (402); the filter assembly (3) is slidably connected to the top surface of the filter box (1); the filter assembly (3) comprises a frame, in which a filter bag and an ash box are arranged.
6. A large-angle furnace bottom dust removal and ash conveyor as claimed in claim 5, characterized in that: The cooling component (5) comprises a water pipe interface (501), the water pipe interface (501) is connected to a diversion channel (503), a humidifier (504) is arranged on the diversion channel (503), and the humidifier (504) is electrically connected to a trigger switch (603).
7. A large-angle furnace bottom dust removal and ash conveyor as claimed in claim 6, characterized in that: A through hole is provided on one side of the diversion channel (503) close to the inner wall of the cooling tube (402), and the humidifier (504) is arranged above the through hole. There are multiple through holes, which are arranged at equal intervals in a linear array, and the number and position of the humidifiers (504) are adapted to the through holes.
8. A large-angle furnace bottom dust removal and ash conveyor as claimed in claim 7, characterized in that: There are a plurality of diversion channels (503) which are arranged in a circular array at equal intervals in the cooling tube (402); an annular groove (502) is arranged between the water pipe interface (501) and the diversion channel (503); the water pipe interface (501) is connected to the annular groove (502); and the annular groove (502) is connected to all the diversion channels (503).