Coal water slurry dust catching device
By designing a device for catching water and coal slurry dust, using axial flow fan and particle capture mesh barrel, the problem of dust escape during long-distance coal transportation is solved, and the effect of effectively reducing particulate emissions and energy-saving and environmentally friendly is achieved.
Patent Information
- Application Number
- CN202421826776.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-30
AI Technical Summary
During the long-distance pipeline coal transportation process, the positive pressure wind generated by the rod mill causes dust particles to escape from water and coal slurry, causing environmental pollution and health hazards. The existing wet dust removal equipment consumes a lot of funds and has a great impact on indoor environmental humidity.
A water-coal slurry dust capture device is designed, including an axial flow fan, an air collecting hood, a rod bolt, a flange and a particle capture mesh barrel. Negative pressure is generated through the axial flow fan, and the particle capture mesh barrel is used to capture PM2.5 and PM10 and other lung particles.
It effectively reduces particulate emissions, saves energy and is environmentally friendly, has little impact on indoor environmental humidity, is simple in structure and is convenient to use, and can be directly installed on the top of the rod mill drum screen, solving the problem of coal dust pollution.
Smart Images
Figure CN222956105U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal water slurry preparation equipment, in particular to a coal water slurry dust capture device. Background Art
[0002] Long-distance pipeline coal transportation requires the head-end station to provide stable and qualified pipeline coal slurry. Due to the structural characteristics of the rod mill, a certain amount of positive pressure air will be generated during the production process, and a large amount of coal water slurry dust particles will escape from the rod mill cylinder, which not only affects the environment but also poses a hazard to the health of on-site inspectors. Now, it is necessary to eliminate the above existing problems.
[0003] At present, the existing wet dust removal equipment consumes a large amount of funds and has a great impact on the indoor environmental humidity, affecting the stable operation of other mechanical and electrical equipment in the system. Therefore, it is necessary to provide a new technical solution to solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a coal water slurry dust capture device, which solves the problem of difficult folding of conventional folding tables in the prior art.
[0005] The technical solution adopted by the utility model is: a coal water slurry dust capture device, including an axial flow fan, a gas collecting hood is connected to the base of the axial flow fan, several through-bar bolts are arranged in the gas collecting hood, the other ends of the several through-bar bolts are connected with a flange, and several particle capture mesh cylinders are arranged between the gas collecting hood and the flange.
[0006] The characteristics of the utility model also lie in:
[0007] The gas collecting hood includes a gas collecting hood shell, the center and the periphery of the bottom of the gas collecting hood shell are provided with first bolt holes, and several first particle capture mesh cylinder reserved holes are also arranged at the bottom of the gas collecting hood shell.
[0008] The gas collecting hood also includes a gas collecting hood top cover, the center and the periphery of the gas collecting hood top cover are provided with second bolt holes, and several second particle capture mesh cylinder reserved holes are also arranged on the gas collecting hood top cover.
[0009] The center of the flange is provided with corresponding bolt holes, several third bolt holes are arranged around the flange, and several third particle capture mesh cylinder reserved holes are evenly distributed along the center bolt hole on the flange.
[0010] The through-bar bolts sequentially pass through the axial flow fan, the first bolt holes, the second bolt holes and the third bolt holes from top to bottom.
[0011] Several particle capture mesh cylinders are respectively arranged on the corresponding first particle capture mesh cylinder reserved holes, second particle capture mesh cylinder reserved holes and third particle capture mesh cylinder reserved holes, and a particle capture mesh is arranged inside each particle capture mesh cylinder.
[0012] The beneficial effects of the present utility model are as follows: The device for preventing the escape of coal dust particles in the coal slurry preparation of the present utility model is directly installed at the top position of the drum screen of the rod mill. By means of particle capture, respirable particles such as PM2.5 and PM10 are fixed, effectively reducing the emission of particulate matter. At the same time, it achieves energy conservation, small environmental disturbance, and little impact on the indoor environmental humidity. The structure of the present utility model is simple and easy to use. Utilizing the negative pressure generated by the axial flow fan, through the particle capture net, the particulate matter of coal dust is eliminated, reducing or avoiding environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a three-dimensional structural schematic diagram of the water coal slurry dust capture device of the present utility model;
[0014] Figure 2 is a structural schematic diagram of the air collecting hood housing of the present utility model;
[0015] Figure 3 is a structural schematic diagram of the air collecting hood top cover of the present utility model;
[0016] Figure 4 is a structural schematic diagram of the table top of the water coal slurry dust capture device of the present utility model.
[0017] In the figure: 1. Axial flow fan; 2. Air collecting hood; 201. Air collecting hood housing; 202. First particle capture net cylinder reserved hole; 203. Air collecting hood top cover; 204. Second particle capture net cylinder reserved hole; 3. Through-bar bolt; 4. Flange; 401. Third particle capture net cylinder reserved hole; 5. Particle capture net cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] As Figure 1 shown, the present utility model provides a water coal slurry dust capture device, including an axial flow fan 1, the axial flow fan 1 is vertically installed, a base of the axial flow fan 1 is connected with an air collecting hood 2, several through-bar bolts 3 are inserted into the air collecting hood 2, the other ends of the several through-bar bolts 3 are connected with a flange 4, and several particle capture net cylinders 5 are arranged between the air collecting hood and the flange. This device is installed on the top cover of the upper guard of the rod mill drum screen, and the air collecting hood 2 is cylindrical.
[0020] As Figure 2 and Figure 3The shown air hood 2 includes an air hood housing 201. The center and the periphery of the bottom of the air hood housing 201 are provided with first bolt holes, and a plurality of first reserved holes 202 for particle capture mesh cylinders are also provided at the bottom of the air hood housing 201. The air hood 2 further includes an air hood top cover 203. The center and the periphery of the air hood top cover 203 are provided with second bolt holes, and a plurality of second reserved holes 204 for particle capture mesh cylinders are also provided on the air hood top cover 203.
[0021] As Figures 1 - 3 shown, a corresponding bolt hole is provided at the center of the flange 4, a plurality of third bolt holes are provided around the flange 4, and a plurality of third reserved holes 401 for particle capture mesh cylinders are evenly distributed along the center bolt hole on the flange 4. The through-bar bolt 3 passes through the axial flow fan 1, the first bolt hole, the second bolt hole, and the third bolt hole from top to bottom in sequence. A plurality of particle capture mesh cylinders 5 are respectively inserted into the corresponding first reserved holes 202 for particle capture mesh cylinders, the second reserved holes 204 for particle capture mesh cylinders, and the third reserved holes 401 for particle capture mesh cylinders. A particle capture mesh is provided inside each particle capture mesh cylinder 5. The particle capture mesh is made of a fine metal mesh and can well capture dust PM10 and PM2.5. The hole distributions on the disc surfaces of the air hood housing 201, the air hood top cover 203, and the flange 4 correspond to each other; by inserting the through-bar bolt 3, the particle capture mesh cylinder 5 can be pressed tightly, and it can meet the requirement that a certain negative pressure can be formed after the air hood 2 is connected to the axial flow fan 1 and operates.
[0022] The working principle of the water coal slurry dust capture device provided by the present utility model is as follows:
[0023] The water coal slurry dust capture device is directly installed on the drum screen guard of the wet rod mill to eliminate the "air blowing" generated during the rotation and falling process of the steel rods, and can effectively eliminate the problem of coal dust pollution. After the axial flow fan 1 is started, a negative pressure is generated, and the water coal slurry dust generated inside the wet rod mill is filtered by the particle capture mesh in the particle capture mesh cylinder 5.
[0024] Embodiment 1
[0025] As Figure 1 shown, the water coal slurry dust capture device proposed in this embodiment includes an axial flow fan 1. An air hood 2 is connected to the base of the axial flow fan 1. A plurality of through-bar bolts 3 are inserted into the air hood 2. The other ends of the plurality of through-bar bolts 3 are connected to a flange 4. A plurality of particle capture mesh cylinders 5 are provided between the air hood and the flange.
[0026] Embodiment 2
[0027] As Figures 1 - 2As shown in the figure, the water coal slurry dust capture device proposed in this embodiment includes an axial flow fan 1. A gas collecting hood 2 is connected to the base of the axial flow fan 1. A number of through-bar bolts 3 are inserted into the gas collecting hood 2. The other ends of the number of through-bar bolts 3 are connected to a flange 4. A number of particle capture mesh cylinders 5 are provided between the gas collecting hood and the flange. The gas collecting hood 2 includes a gas collecting hood housing 201. First bolt holes are provided at the center and around the bottom of the gas collecting hood housing 201. A number of first particle capture mesh cylinder reserved holes 202 are also provided at the bottom of the gas collecting hood housing 201. The gas collecting hood 2 further includes a gas collecting hood top cover 203. Second bolt holes are provided at the center and around the gas collecting hood top cover 203. A number of second particle capture mesh cylinder reserved holes 204 are also provided on the gas collecting hood top cover 203.
[0028] Embodiment 3
[0029] As Figures 1 - 3 As shown in the figure, the water coal slurry dust capture device proposed in this embodiment includes an axial flow fan 1. A gas collecting hood 2 is connected to the base of the axial flow fan 1. A number of through-bar bolts 3 are inserted into the gas collecting hood 2. The other ends of the number of through-bar bolts 3 are connected to a flange 4. A number of particle capture mesh cylinders 5 are provided between the gas collecting hood and the flange. The gas collecting hood 2 includes a gas collecting hood housing 201. First bolt holes are provided at the center and around the bottom of the gas collecting hood housing 201. A number of first particle capture mesh cylinder reserved holes 202 are also provided at the bottom of the gas collecting hood housing 201. The gas collecting hood 2 further includes a gas collecting hood top cover 203. Second bolt holes are provided at the center and around the gas collecting hood top cover 203. A number of second particle capture mesh cylinder reserved holes 204 are also provided on the gas collecting hood top cover 203. A corresponding bolt hole is provided at the center of the flange 4. A number of third bolt holes are provided around the flange 4. A number of third particle capture mesh cylinder reserved holes 401 are evenly distributed along the center bolt hole on the flange 4. The through-bar bolts 3 sequentially pass through the axial flow fan 1, the first bolt holes, the second bolt holes, and the third bolt holes from top to bottom. A number of particle capture mesh cylinders 5 are respectively inserted into the corresponding first particle capture mesh cylinder reserved holes 202, second particle capture mesh cylinder reserved holes 204, and third particle capture mesh cylinder reserved holes 401. A particle capture mesh is provided inside each particle capture mesh cylinder 5. An "O" - ring is used for sealing at the end of the gas collecting hood 2 and the particle capture mesh cylinder 5, and a rubber gasket is used for sealing at the joint surface with the axial flow fan 1. It is required that the sealing surface has no leakage. The gas collecting hood top cover 203 welds and fixes the through-bar bolts 3 according to the size holes of the axial flow fan 1 to meet the torque requirement for fixing the axial flow fan 1. The particle capture mesh cylinders 5 are fixed in a clamping manner with the flange 4 and the gas collecting hood 2, so as to generate positioning and be not damaged by the vibration of the equipment body, other abnormal vibrations, etc.; and it is convenient to disassemble and clean the capture mesh, improving the overall service performance of the equipment.
Claims
1. A water-coal slurry dust capture device, characterized in that: The invention comprises an axial flow fan (1), wherein a base of the axial flow fan (1) is connected to an air collecting hood (2), a plurality of through-bar bolts (3) are inserted into the air collecting hood (2), the other ends of the plurality of through-bar bolts (3) are connected to a flange (4), and a plurality of particle catching net cylinders (5) are arranged between the air collecting hood and the flange.
2. The coal water slurry dust capture device according to claim 1, characterized in that: The gas collecting hood (2) comprises a gas collecting hood shell (201), a first bolt hole is provided at the bottom center and around the bottom of the gas collecting hood shell (201), and a plurality of first particle capturing net cylinder reserved holes (202) are also provided at the bottom of the gas collecting hood shell (201).
3. The coal water slurry dust capture device according to claim 2, characterized in that: The gas collecting hood (2) further comprises a gas collecting hood top cover (203), the center and surrounding of the gas collecting hood top cover (203) are provided with second bolt holes, and the gas collecting hood top cover (203) is also provided with a plurality of second particle capturing net cylinder reserved holes (204).
4. The coal water slurry dust capture device according to claim 3, characterized in that: A corresponding bolt hole is provided at the center of the flange (4), a plurality of third bolt holes are provided around the flange (4), and a plurality of third particle capture net cylinder reserved holes (401) are evenly distributed along the central bolt hole on the flange (4).
5. The coal water slurry dust capture device according to claim 4, characterized in that: The through-bar bolt (3) passes through the axial flow fan (1), the first bolt hole, the second bolt hole and the third bolt hole in sequence from top to bottom.
6. The coal water slurry dust capture device according to claim 5, characterized in that: A plurality of the particle capture net cylinders (5) are respectively inserted into the corresponding first particle capture net cylinder reserved hole (202), the second particle capture net cylinder reserved hole (204) and the third particle capture net cylinder reserved hole (401), and a particle capture net is arranged inside each of the particle capture net cylinders (5).