Separating device
By adopting a combination solution of an annular windshield plate and a wire mesh device in the separation device, the problem of difficulty in efficiently removing gases containing dust and droplets in the prior art is solved, and the effect of efficient dust removal and liquid removal is achieved, ensuring the long-term and stable operation of the equipment.
Patent Information
- Application Number
- CN202323426387.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-15
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2033-12-15
AI Technical Summary
The prior art is difficult to efficiently remove gases containing dust and liquid droplets, and the equipment is prone to clogging and cannot operate stably for a long time.
The combination of annular windshield panel structure and a wire mesh device is adopted. The large-particle dust is first removed through the annular windshield panel, and the remaining dust and droplets are removed through the wire mesh device to realize the treatment method of dust removal first and then liquid removal.
It effectively improves dust removal efficiency, avoids the problem of equipment blockage, achieves long-term and stable operation, and reduces the footprint and maintenance costs.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model belongs to a separator, in particular to a gas-solid / gas-liquid separation device. Background Art
[0002] At present, in the case of dust in the gas, cyclone dust removal or bag dust removal is mostly used according to the dust particle size and content. However, cyclone dust removal has low efficiency and the gas cannot meet the emission standards. Although bag dust removal is efficient, it can only remove dry dust. If the gas contains droplets, it will cause "bag sticking" and the equipment cannot operate normally.
[0003] If a liquid separation device is added in front of the bag filter, a very high gas-liquid separation efficiency is required, otherwise "bag sticking" will still occur. Moreover, since the gas contains dust, the liquid separation device is easily blocked, resulting in the equipment being unable to operate stably for a long time.
[0004] Therefore, for gases containing both dust and droplets, a device is needed that can efficiently remove dust and droplets from the gas and can operate stably for a long time. Utility Model Content
[0005] The utility model aims to provide a separation device which can efficiently remove dust and liquid droplets in gas and can operate stably for a long time.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a separation device, comprising an intermediate shell, one end of the intermediate shell is connected to the top shell, a smoke outlet is provided in the center of the top of the top shell, the other end of the intermediate shell is connected to the bottom shell, a supporting steel frame is provided at the bottom of the intermediate shell, and the supporting steel frame is connected to the supporting legs; a smoke inlet is provided on the side of the intermediate shell, a plurality of annular wind shields are provided inside the intermediate shell, and a core tube is provided in the middle of the annular wind shield; a wire mesh device is provided on the top of the intermediate shell.
[0007] Preferably, the intermediate shell is cylindrical, and the height of the cylinder is 1.4 times the diameter.
[0008] Preferably, the smoke inlet is arranged at the bottom of the intermediate shell and is connected to the outermost side of the intermediate shell.
[0009] Preferably, the starting position of the annular wind shield is opposite to the smoke inlet, and the starting height of the annular wind shield is flush with the height of the smoke inlet. The annular wind shield takes the center of the equipment as the circle point, goes around the equipment 3 / 4 of the circle, and gradually rises. The horizontal angle of the rise is 15°, and the spacing between the annular wind shields is 100mm.
[0010] Preferably, the core tube height is the height of the highest point of the annular wind shield, the core tube diameter is 1 / 3 of the intermediate shell, and the core tube and the annular wind shield are fixed by welding to the supporting steel frame.
[0011] Preferably, the wire mesh device is a DP high-efficiency wire mesh, the individual wire mesh devices are connected by bolts, and the entire wire mesh device is fixed by a grid support.
[0012] Preferably, the top shell is in a truncated cone shape, and the generatrix is at an angle of 45° to the vertical line.
[0013] Preferably, the top shell is provided with an inspection port on one side and lifting ears on both sides, and the lifting ears are side wall plate type lifting ears.
[0014] Preferably, the bottom shell has a slope of not less than 30°, and a drain port, a dust cleaning port and a spare port are provided at the bottom of the bottom shell.
[0015] Preferably, there are three legs evenly distributed around the circumference, and each leg is longer than 1000 mm.
[0016] Compared with the prior art, the technical solution of the utility model has the following advantages: (1) an annular windshield structure is adopted inside, and the dust removal efficiency is much higher than that of ordinary cyclone dust collectors. A wire mesh device is added behind the annular windshield, which effectively solves the problem that dusty wet flue gas is difficult to handle;
[0017] (2) By rationally setting the internal structure, that is, removing dust first and then removing liquid, the problem of equipment blockage is effectively avoided. Compared with the method of removing liquid first and then entering the bag dust collector, the utility model does not have the problem of blockage, and the operation is more stable without the risk of "bag sticking";
[0018] (3) The equipment integrates the annular windshield dust removal and the wire mesh device liquid removal into an integrated skid-mounted structure, which occupies a small area and can be properly maintained only through the top inspection port. Compared with other dust and liquid removal devices, such as wet electrostatic precipitators, it occupies a smaller area, has a lower one-time investment, lower operating energy consumption, and is simpler to maintain. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a front view of the utility model;
[0020] Figure 2 This is a cross-sectional view of the utility model;
[0021] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0022] Figure 4 It is a front view of the screen device;
[0023] Figure 5 This is a top view of the screen device. DETAILED DESCRIPTION
[0024] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0025] The utility model proposes Figure 1-5 A separation device shown includes the following components: an intermediate shell 1, a smoke inlet 2, an annular wind shield 3, a core tube 4, a supporting steel frame 5, a wire mesh device 6, a grid support 7, bolts 8, a top shell 9, an inspection port 10, a lifting lug 11, a smoke outlet 12, a bottom shell 13, a support leg 14, a liquid discharge port 15, a ash cleaning port 16 and a spare port 17.
[0026] Wet flue gas containing dust and liquid droplets enters the separation device from the flue gas inlet 2. The flue gas inlet 2 is set at the bottom of the intermediate shell 1 and connected to the outermost side of the intermediate shell 1. The flue gas inlet flow rate is 24m / s, which is in a high-speed flow state and has a large kinetic energy. The flue gas hits the annular windshield 3, causing large-sized dust to fall. At the same time, the flue gas rotates around the annular windshield 3, increasing the residence time of the flue gas, so that the small-sized dust and liquid droplets are fully mixed, forming large-sized dust and then falling. The intermediate shell 1 is cylindrical. While the flue gas rotates inside the equipment, it gradually rises along the annular windshield 3. The rising air tower flow rate is 3m / s, in order to prevent the flow rate from being too fast, causing dust and liquid droplets to be directly carried out of the equipment with the flue gas. The initial position of the annular windshield 3 is directly opposite to the smoke inlet 2, and its height is flush with the height of the smoke inlet. The annular windshield takes the center of the equipment as the center point, goes around the equipment 3 / 4 of the circle, and gradually rises. The horizontal angle of the rise is 15°. By setting the horizontal angle of 15°, the annular windshield is a right-angled trapezoid after unfolding. If the horizontal angle is 0°, the annular windshield 3 is a rectangle after unfolding, thereby reducing the material and weight of the equipment. The height of the core tube 4 is consistent with the highest point of the annular windshield 3, that is, the height of the outermost annular windshield 3. The diameter of the core tube 4 is 1 / 3 of the intermediate shell 1. By setting the core tube 4, it is ensured that the smoke flows in rotation inside the equipment and slowly rises along the core tube 4 and the annular windshield 3. The intermediate shell 1, the annular windshield 3 and the core tube 4 are all fixed by welding to the supporting steel frame 5. After most of the dust in the flue gas is removed in the annular windshield 3, it enters the wire mesh device 6 at an ascending gas velocity of 3m / s. The wire mesh device uses a DP high-efficiency wire mesh. The remaining dust and droplets in the flue gas are captured by the wire mesh device 6 and fall under the action of gravity. The wire mesh device 6 is modularly designed, and the single wire mesh devices 6 are connected by bolts 8. After long-term operation, if the wire mesh device 6 is blocked, the bolts 8 can be removed and taken out through the inspection port 10 for replacement and cleaning. The entire wire mesh device is fixed by the grid support 7.
[0027] After the flue gas passes through the wire mesh device 6, dust and droplets are removed and the flue gas becomes clean gas, which is discharged from the flue gas outlet 12 of the top shell 9. The top shell 9 is a truncated cone with an angle of 45°. Its bottom is welded to the middle shell 1 and its top is welded to the flue gas outlet 12. The flow rate of the flue gas outlet is 15m / s and it is directly connected to the rear end pipeline.
[0028] The dust and liquid in the flue gas fall into the bottom shell 13 under the action of the annular wind shield 3 and the wire mesh device 6. The bottom shell 13 is welded to the intermediate shell 1. The bottom shell 13 has a certain slope (≥30°) so that the dust and liquid droplets fall to the lowest point along the wall. The bottom is provided with a drain port 15 with a size ≥DN50, a cleaning port 16 with a size ≥DN250, and a spare port 17 with a size ≥DN50 to discharge the collected dust and liquid droplets out of the device in time.
[0029] The working principle of this scheme is as follows: the flue gas containing dust and droplets enters the interior of the equipment from the flue gas inlet 2, and then the flue gas rotates and flows in the annular wind shield 3 and gradually rises. The large-sized dust hits the annular wind shield 3 and falls into the bottom shell 13 due to gravity. The small-sized dust collides with the droplets during the swirling and rising process, is absorbed by the droplets, and forms large-sized dust, which then falls into the bottom shell 13 due to gravity. During this process, most of the dust and part of the droplets fall into the bottom shell 13, and a small amount of dust and the remaining droplets in the flue gas enter the wire mesh device 6 in the rising airflow. Most of the dust has been removed in the annular wind shield 3, and a small amount of dust is captured on the surface of the wire mesh device 6. The remaining droplets are captured on the way through the wire mesh device 6 to form large droplets that fall into the bottom shell 13 under the action of gravity. The clean gas is discharged from the top flue gas outlet 12, and the captured dust and droplets are discharged from the bottom cleaning port 16 and the drain port 15. After a long period of operation, the pressure difference between the inlet and outlet of the separation device increases, indicating that the wire mesh device 6 is blocked. The wire mesh device 6 can be taken out through the top inspection port 10 for cleaning, and the spare wire mesh device 6 can be installed at the same time, and the equipment can operate normally.
[0030] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A separation device, comprising an intermediate shell (1), one end of the intermediate shell (1) is connected to a top shell (9), a smoke outlet (12) is provided at the center of the top of the top shell (9), the other end of the intermediate shell (1) is connected to a bottom shell (13), a supporting steel frame (5) is provided at the bottom of the intermediate shell (1), and the supporting steel frame (5) is connected to a support leg (14); characterized in that: A smoke inlet (2) is provided on the side of the intermediate shell (1); a plurality of annular wind shields (3) are arranged inside the intermediate shell (1); a core tube (4) is arranged in the middle of the annular wind shields (3); and a wire mesh device (6) is arranged on the top of the intermediate shell (1).
2. The separation device according to claim 1, characterized in that: The intermediate shell (1) is cylindrical, and the height of the cylinder is 1.4 times the diameter.
3. The separation device according to claim 1, characterized in that: The smoke inlet (2) is arranged at the bottom of the intermediate shell (1) and is connected to the outermost side of the intermediate shell (1).
4. The separation device according to claim 1, characterized in that: The starting position of the annular wind shield (3) is directly opposite to the smoke inlet (2), and the starting height of the annular wind shield (3) is flush with the height of the smoke inlet (2). The annular wind shield (3) takes the center of the equipment as the circle point, goes around the equipment 3 / 4 of the circle, and gradually rises. The horizontal angle of the rise is 15°, and the spacing between the annular wind shields (3) is 100 mm.
5. The separation device according to claim 1, characterized in that: The height of the core tube (4) is the height of the highest point of the annular windshield (3), the diameter of the core tube (4) is 1 / 3 of the intermediate shell (1), and the core tube (4) and the annular windshield (3) are fixed by welding to the supporting steel frame (5).
6. The separation device according to claim 1, characterized in that: The wire mesh device (6) is a DP high-efficiency wire mesh, and the individual wire mesh devices (6) are connected by bolts (8), and the entire wire mesh device (6) is fixed by a grid support (7).
7. The separation device according to claim 1, characterized in that: The top shell (9) is in the shape of a truncated cone, with the generatrix being at an angle of 45° to the vertical line.
8. The separation device according to claim 1, characterized in that: The top shell (9) is provided with an inspection port (10) on one side and lifting ears (11) on both sides, wherein the lifting ears are side wall plate type lifting ears.
9. The separation device according to claim 1, characterized in that: The bottom shell (13) has a slope of not less than 30°, and a liquid discharge port (15), a dust cleaning port (16) and a spare port (17) are arranged at the bottom of the bottom shell (13).
10. The separation device according to claim 1, characterized in that: The supporting legs (14) are evenly distributed on the circumference of the device, and the length of each supporting leg is greater than 1000 mm.