Humidifier for blast furnace gas bag dust removal large ash bin
By installing spiral blades and stirring rods in the humidifier, optimizing the nozzle design to a 65-degree angle, and strengthening the motor support structure, the problem of uneven water atomization in the humidifier was solved, achieving uniform humidification of dust and reducing dust overflow.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN VALIN LIANYUAN IRON & STEEL CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-15
AI Technical Summary
After the blast furnace gas passes through the bag filter, the dust is not effectively atomized by adding water during the humidifier's transport process, resulting in uneven mixing and dust overflow that pollutes the environment.
By installing spiral blades and stirring rods in the humidifier, optimizing the nozzle design to a 65-degree angle, and setting a support structure under the motor to ensure the stability of the drive shaft, uniform humidification can be achieved.
This increases the contact area between water and dust, improves the humidification effect, reduces dust overflow, and ensures uniform transportation and processing of dust.
Smart Images
Figure CN224243120U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of humidification for large dust collection silos, specifically to a humidifier for large dust collection silos for blast furnace gas bag filters. Background Technology
[0002] After the blast furnace gas passes through the bag filter, the dust filtered in each chamber is transported to the large ash silo. Then, the dust from the large ash silo is transported to the truck via a humidifier. However, in actual production, many shortcomings and problems were found with the humidifier. During the process of transporting the dust, the water atomization effect was not good, and the water and dust were not evenly mixed together, resulting in unsatisfactory dust removal effect, dust overflow, and environmental pollution. Utility Model Content
[0003] The technical problem to be solved by this utility model is that after the blast furnace gas is filtered by bag filter, the dust is transported to the large ash silo by gas and then transported to the car by a humidifier. However, the humidifier has poor water atomization and uneven mixing, which leads to dust overflow and pollution.
[0004] The technical solution adopted to solve the above technical problems is as follows: including a shell, a drive shaft is horizontally arranged inside the shell, a spiral blade and a stirring rod are fixed outside the drive shaft, a motor is arranged on one side of the shell, the output end of the motor is connected and fixed to the drive shaft through a coupling, a cover is provided on the top of the shell, and several pairs of nozzles are fixed below the cover.
[0005] As a preferred technical solution of this utility model, an ash inlet is provided on the upper side of the shell near one end, and an ash outlet is provided on the lower side of the shell near the other end. By specifying the positions of the ash inlet and the ash outlet, the dust can enter and exit the shell according to a reasonable path, ensuring the normal flow and processing of materials inside the humidifier, and helping to improve humidification and conveying efficiency.
[0006] As a preferred technical solution of this utility model, there is a 65-degree angle between the nozzle and the cover. The specific design of the nozzle and cover angle enables the water mist sprayed from the nozzle to better cover the dust in the housing, increase the contact area between water and dust, improve the uniformity of water atomization, thereby improving the humidification effect of the dust and reducing dust overflow.
[0007] As a preferred technical solution of this utility model, a base is provided below the motor for its support, and support frames are provided at both ends of the transmission shaft. The base provides stable support for the motor, reduces vibration and displacement during motor operation, and ensures normal operation of the motor. The support frames at both ends of the transmission shaft enhance the stability of the transmission shaft, prevent it from shaking or deforming during rotation, and ensure that the spiral blade and stirring rod can operate stably to achieve effective material conveying and stirring.
[0008] As a preferred technical solution of this utility model, the nozzle is connected to an external water supply device, and the motor is electrically connected to an external power source.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] 1. The cover plate was modified by installing nozzles on it. The nozzle installation was optimized and improved by installing symmetrical cross-shaped fan nozzles and spiral nozzles, with the fan nozzles installed at a 65-degree angle to ensure uniform humidification of the dust.
[0011] 2. The blade structure of the rotating part of the humidifier was modified, and some blades were symmetrically removed, which effectively reduced the flow rate during ash discharge and extended the humidification time. Attached Figure Description
[0012] Figure 1 This is a front sectional view of the overall structure of this utility model;
[0013] Figure 2 This is a cross-sectional view of the inner side of the housing of this utility model.
[0014] In the diagram: 1. Motor; 2. Ash inlet; 3. Spiral blade; 4. Stirring rod; 5. Shell; 6. Ash outlet; 7. Cover; 8. Nozzle. Detailed Implementation
[0015] 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. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0017] exist Figure 1 , 2The humidifier includes a housing 5, with a drive shaft horizontally positioned inside. A spiral blade 3 and a stirring rod 4 are fixedly mounted on the outside of the drive shaft. A motor 1 is located beside the housing 5, and its output end is connected to the drive shaft via a coupling. A cover 7 covers the top of the housing 5, and several pairs of nozzles 8 are fixed below the cover 7. An ash inlet 2 is located on one end of the upper side of the housing 5, and an ash outlet 6 is located on the other end of the lower side. By specifying the positions of the ash inlet 2 and the ash outlet 6, dust can enter and exit the housing 5 along a reasonable path, ensuring the normal flow and processing of materials inside the humidifier and improving humidification and conveying efficiency. There is a 65° gap between the nozzles 8 and the cover 7. The angle between the nozzle 8 and the cover 7 is specifically designed to allow the water mist sprayed from the nozzle 8 to better cover the dust inside the housing 5, increasing the contact area between water and dust, improving the uniformity of water atomization, thereby improving the humidification effect of the dust and reducing dust overflow; a base is provided below the motor 1 for its support, and support frames are provided at both ends of the drive shaft. The base provides stable support for the motor 1, reducing vibration and displacement during operation and ensuring normal operation of the motor 1; the support frames at both ends of the drive shaft enhance the stability of the drive shaft, preventing it from shaking or deforming during rotation, ensuring that the spiral blades and stirring rods can operate stably and achieve effective material conveying and stirring.
[0018] The working principle of this utility model is as follows: After the blast furnace gas passes through the bag filter, the dust filtered in each chamber is transported to the housing 5 of the humidifier through the gas, specifically entering through the ash inlet 2 opened near one end on the upper side of the housing 5. At this time, the motor 1 remains stable due to the base provided for its support below. The motor 1 is electrically connected to an external power source to obtain power, and its output end drives the transmission shaft, which is horizontally placed inside the housing 5, to rotate through a coupling. Both ends of the transmission shaft are provided with support frames to enhance its stability and prevent shaking or deformation during rotation.
[0019] The spiral blade 3, fixed to the outside of the drive shaft, rotates together with the drive shaft, conveying the dust collected in the housing 5 from one end of the inlet 2 towards the lower outlet 6. During the conveying process, the stirring rod 4, fixed to the outside of the drive shaft, stirs the dust. At the same time, several pairs of nozzles 8, fixed below the cover 7, are connected to an external water supply device, and water is sprayed out through the nozzles 8. Because there is a 65-degree angle between the nozzles 8 and the cover 7, this specific angle design allows the water mist sprayed from the nozzles 8 to better cover the dust inside the housing 5, increasing the contact area between water and dust, so that water and dust are evenly mixed together, achieving a good humidification effect. Finally, the humidified dust is discharged from the lower outlet 6, which is opened on the lower side of the housing 5 near the other end.
[0020] 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 humidifier for a large ash silo in a baghouse dust collector for blast furnace gas, characterized in that: Includes a housing (5), a drive shaft is horizontally arranged inside the housing (5), a spiral blade (3) and a stirring rod (4) are fixed on the outside of the drive shaft, a motor (1) is arranged on one side of the housing (5), the output end of the motor (1) is connected and fixed to the drive shaft by a coupling, a cover (7) is provided on the top of the housing (5), and several pairs of nozzles (8) are fixed below the cover (7).
2. The humidifier for the large ash silo of blast furnace gas bag filter dust collector according to claim 1, characterized in that: The upper side of the shell (5) is provided with an ash inlet (2) near one end, and the lower side of the shell (5) is provided with an ash outlet (6) near the other end.
3. The humidifier for the large ash silo of blast furnace gas bag filter dust collector according to claim 1, characterized in that: The nozzle (8) and the cover (7) have a 65-degree angle.
4. The humidifier for the large ash silo of blast furnace gas bag filter dust collector according to claim 1, characterized in that: The motor (1) is provided with a base for support below it, and support frames are provided at both ends of the transmission shaft.
5. The humidifier for the large ash silo of blast furnace gas bag filter dust collector according to claim 1, characterized in that: The nozzle (8) is connected to an external water supply device, and the motor (1) is electrically connected to an external power source.