Water collector for wet dust collector
By designing the water collection assembly and connecting support pipe structure in the wet dust collector, the problem of low solid and liquid phase separation efficiency of existing dust collectors is solved, and efficient and stable dust removal effect is achieved.
Patent Information
- Application Number
- CN202421800758.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-29
AI Technical Summary
After the existing dust collectors mix dust, spray and airflow, the solid and liquid phase separation efficiency is low, resulting in low dust removal efficiency.
A water collector for wet dust collector is designed, and the water collecting assembly is used, including a diversion drainage cone, a radial water stop ring and an axial water stop ring. Through these structures, the mixed gas flows to the outer layer, and the centrifugal effect is formed by connecting the support pipe, so that the waste slag and moisture are thrown away and separated.
It improves dust removal efficiency, ensures efficient and stable operation of the dust collector, and avoids the problem of secondary entanglement of solid and liquid phases.
Smart Images
Figure CN222804930U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of dust collectors, and in particular relates to a water collector for a wet dust collector. Background Art
[0002] Mining dust removal fans, air washers and other dust collectors with similar mechanisms, when the dust, spray and airflow are mixed, most of the solid and liquid phases are separated to the outer layer under the influence of the internal structure, and the solid and liquid phases are separated in the peripheral dehydration structure of the flow field, while the solid and liquid phases retained in the flow field near the central axis are always discharged with the airflow, which is the fatal reason for the low dust removal efficiency of this type of dust collector.
[0003] The traditional dehydrator or demister adopts a folded W-plate structure. When the mixed flow passes through, a vortex street is generated. The water mist condenses on the W-plate wall due to inertia, and the air passes smoothly to achieve the purpose of purification.
[0004] When the W-plate is arranged in the dehydration area, the vortex effect of the mixed flow is used to throw the solid and liquid phases to both sides along the W-plate wall. However, due to the structural limitations of the W-plate, dehydration is only done to both sides, and the ventilation area on both sides is limited, which can easily cause the air to entrain the solid and liquid phases for the second time. For this reason, we propose a water collector for wet dust collector. Utility Model Content
[0005] The purpose of the utility model is to provide a water collector for a wet dust collector. The influence of the low-resistance structure on the flow field can be ignored, and the water collection and diversion discharge avoids the problem of secondary entrainment, thereby ensuring efficient and stable dust removal efficiency.
[0006] The technical solution adopted by the utility model is as follows:
[0007] A water collector for a wet dust collector comprises a dehydration zone, wherein a water collection assembly is arranged inside the dehydration zone;
[0008] The water collection assembly includes a base plate, the central axis of the base plate coincides with the central axis of the dehydration zone, the base plate includes a base plate and an outer axial water stop ring, two symmetrical guide and drain cones are respectively fixed in the middle of the two sides of the base plate, the two guide and drain cones are both thin-walled hollow structures, the conical surfaces of the two guide and drain cones are both fixed with radial water stop rings, and the two radial water stop rings are parallel to the base plate;
[0009] It also includes a plurality of connecting support pipes distributed along a circumferential array, one end of each of the connecting support pipes is connected to two guide drain cones, and the other end of each of the connecting support pipes is connected to the inner wall of the dehydration zone. The two guide drain cones are also provided with a plurality of drain grooves at intervals on their conical surfaces, and the outer edges of the drain grooves are fixedly connected to the inner edges of adjacent radial water stop rings. When working, the water collection assembly is arranged on the central axis of the mixed flow of the wet dust collector. Due to the structural arrangement of the guide drain cone, radial water stop ring and axial water stop ring increasing along the gradient, the flow field can be It generates a turbulent flow to facilitate the mixed gas to flow to the outer layer. On the one hand, the mixed gas enters the base along the drain groove, and is drained to the inner wall of the dehydration area through the connecting support pipe, forming a centrifugal effect, so that the waste residue and water with larger mass in the mixed gas are thrown away and attached to the inner wall of the dehydration area to achieve separation. On the other hand, the leeward side of the water collection assembly increases the radial static pressure gradient of the flow field. The low-resistance structure of the water collector has a negligible effect on the flow field. The water collection and diversion discharge avoids the problem of secondary entrainment, ensuring efficient and stable dust removal efficiency.
[0010] The ports of the connecting support pipe away from the base plate are all in the form of a middle protruding structure, which is used to fix to the inner wall of the dehydration area for support. There is a ventilation gap between the port of the connecting support pipe and the dehydration area, and the ventilation gap can be used to circulate mixed gas and remove waste residue.
[0011] The axial water stop ring is arranged on the outer diameter of the base plate and is completely sealed, so that a symmetrical plate shape with edges is formed on both sides of the base plate. The spacing between the drainage grooves is smaller than the size of the aperture of the connecting support pipe. The drainage grooves are used to collect the mixed gas circumferentially, so that the base plate is evenly filled with the mixed gas, evenly affected by the wind, and not easily skewed.
[0012] The two radial water stop rings are respectively fixed at the middle of the two guide and drain cones and are parallel to the base plate of the base plate. The maximum outer diameters of the two radial water stop rings are both smaller than three quarters of the outer diameter of the bottom surface of the guide and drain cones.
[0013] A plurality of first sludge discharge outlets are provided inside the dehydration zone, and the first sludge discharge outlets are all connected to adjacent connecting support pipes. Waste sludge flowing out of the connecting support falls into the first sludge discharge outlets under the action of inertia, and is discharged from the first sludge discharge outlets to separate from the mixed gas.
[0014] A second sludge discharge outlet is also provided on the inner side of the dehydration zone. When the discharge from the first sludge discharge outlet is all waste sludge, the second sludge discharge outlet is opened to discharge the waste sludge downstream of the mixed gas, thereby sharing the discharge pressure of the first sludge discharge outlet and reducing the waste sludge remaining in the discharge zone.
[0015] A separation slag collector is fixed inside the dehydration zone, and the separation slag collector is penetrated by the second mud slag discharge port. The separation slag collector is used to limit the waste slag and mixed gas, so that the waste slag can fall on the inner wall of the separation slag collector and then be discharged along the second mud slag discharge port.
[0016] The technical effects achieved by the utility model are:
[0017] The utility model discloses a water collector for a wet dust collector. When the water collecting assembly is in operation, it is arranged on the central axis of the mixed flow of the wet dust collector. Due to the structural arrangement of the guide drain cone, the radial water stop ring and the axial water stop ring with increasing gradient, a turbulent flow effect can be generated on the flow field, so that the mixed gas flows to the outer layer conveniently. On the one hand, the mixed gas enters the interior of the base plate along the drain groove, and the mixed gas is drained to the inner wall of the dehydration zone through the connecting support pipe, so as to form a centrifugal effect, so that the waste residue and water with larger mass in the mixed gas are thrown away and attached to the inner wall of the dehydration zone to achieve separation. On the other hand, the leeward side of the water collecting assembly increases the radial static pressure gradient of the flow field, and the influence of the low-resistance structure of the water collector on the flow field can be ignored. The water collecting and diversion discharge avoids the problem of being entrained twice, so as to ensure the efficient and stable dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a perspective view of a water collector for a wet dust collector of the utility model;
[0019] Figure 2 It is a perspective view of the interior of a conventional wet dust removal fan for mining of the utility model;
[0020] Figure 3 It is a front view of the water collection assembly of the utility model;
[0021] Figure 4 It is a side view of the water collection assembly of the utility model;
[0022] Figure 5 It is a plan view of the water collection assembly of the utility model.
[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0024] 1. Three-phase mixing zone; 2. Dehydration zone; 3. Discharge zone; 4. Water collection assembly; 401. Connecting support pipe; 402. Base plate; 403. Guide and drain cone; 404. Radial water stop ring; 405. Drain groove; 5. First sludge discharge outlet; 6. Second sludge discharge outlet; 7. Separating sludge collector. DETAILED DESCRIPTION
[0025] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.
[0026] like Figure 1-5 As shown, a water collector for a wet dust collector comprises a three-phase mixing zone 1, a dehydration zone 2 and a discharge zone 3 which are connected in sequence, the three-phase mixing zone 1, the dehydration zone 2 and the discharge zone 3 are all arranged inside the wet dust collector, and a water collection assembly 4 is arranged inside the dehydration zone 2;
[0027] The water collection assembly 4 includes a base plate 402, the central axis of the base plate 402 coincides with the central axis of the dehydration zone 2, the base plate 402 includes a base plate and an outer axial water stop ring, two symmetrical guide and drain cones 403 are respectively fixed in the middle of the two sides of the base plate, and radial water stop rings 404 are fixed on the conical surfaces of the two guide and drain cones 403, and the two radial water stop rings 404 are parallel to the base plate;
[0028] It also includes a plurality of connecting support pipes 401 distributed along a circumferential array, one end of each of the connecting support pipes 401 is connected to two diversion drain cones 403, both of which are thin-walled hollow structures, and the other end of each of the connecting support pipes 401 is connected to the inner wall of the dehydration zone 2, and the cone surfaces of the two diversion drain cones 403 are also spaced apart with a plurality of drain grooves 405, and the outer edges of the drain grooves 405 are fixedly connected to the inner edges of the adjacent radial water stop rings 404;
[0029] In addition, the edge of the substrate extends into the interior of the connecting support tube 401, blocking the solid and liquid phases between the two guide and drain cones 403. During operation, the dust-containing gas is sequentially introduced into the three-phase mixing zone 1 and the dehydration zone 2. A water film is sprayed and arranged in the three-phase mixing zone 1, and a mixed gas is generated in the dehydration zone 2. The water collection assembly 4 is arranged on the central axis of the mixed flow of the wet dust collector. Due to the structural arrangement of the radial water stop ring 404 and the outer ring axial water stop ring along the gradient increase, a turbulent flow effect can be generated on the flow field, which facilitates the mixed gas to flow to the outer layer.
[0030] On the one hand, the mixed gas enters the interior of the drainage cone 403 along the drainage groove 405, and the mixed gas is drained to the inner wall of the dehydration zone 2 through the connecting support pipe 401, forming a centrifugal effect, so that the waste residue and water with larger mass in the mixed gas are thrown away and attached to the inner wall of the dehydration zone 2 to achieve separation. The waste residue can be centrifugally separated without using cyclone gas, and the obstruction caused by the friction of the waste residue can be ignored, which is conducive to improving the desolidification and water collection efficiency;
[0031] On the other hand, the diversion and drainage cone 403 on the basic leeward side increases the radial static pressure gradient of the flow field, causing the solid and liquid phases originally in the separation front range to flow to the outer layer, further improving the efficiency of separating the solid and liquid phases in the mixed gas. The low-resistance structure of the entire water collector has a negligible impact on the flow field, and the water collection and diversion discharge avoids the problem of secondary entrainment, ensuring efficient and stable dust removal efficiency.
[0032] Preferably, the conical surfaces of the two diversion and drainage cones 403 are circular cones, prisms or curved cones of low resistance design.
[0033] Among them, the mixed gas flows toward the outer layer along the two pointed cones of the guide drain cone 403, the radial water stop ring 404 and the axial water stop ring in the order of increasing gradient, so that the mixed gas is compressed between the axial water stop ring and the inner wall of the dehydration zone 2, and the solid and liquid phases in the mixed gas are enriched to achieve the compression purpose, and the solid and liquid phases have an oblique inertial motion so that the waste slag can be thrown off to the inner wall of the dehydration zone 2.
[0034] like Figure 3 , Figure 4 and Figure 5 As shown, the ports of the connecting support tube 401 away from the base plate 402 are all in the form of a middle protruding structure, which is fixed to the inner wall of the dehydration zone 2 for support, and there is a ventilation gap between the port of the connecting support tube 401 and the dehydration zone 2, which can be used to circulate the mixed gas and remove waste residue.
[0035] like Figure 3 , Figure 4 and Figure 5 As shown, the axial water stop ring is arranged on the outer diameter of the base plate and is completely sealed, so that a symmetrical plate shape with an edge is formed on both sides of the base plate 402. The spacing between the drain grooves 405 is smaller than the size of the aperture of the connecting support tube 401. The drain grooves 405 are used to collect the mixed gas in a circumferential direction, so that the base plate 402 is evenly filled with the mixed gas, evenly blown, and not easily skewed. The radial water stop ring 404 can also drain the waste residue and introduce it into the drain grooves 405.
[0036] The two radial water stop rings 404 are respectively fixed in the middle of the two guide drain cones 403, and are parallel to the substrate of the base plate 402. The maximum outer diameters of the two radial water stop rings 404 are smaller than three quarters of the outer diameter of the bottom surface of the guide drain cone 403, and are directly facing the substrate for the mixed gas, which can achieve the effect of multi-level and gradient turbulence, especially part of the mixed gas on the windward side of the guide drain cone 403 is diverted to the drain groove 405, so as to send the solid and liquid phases in the mixed gas into the guide drain cone 403 as much as possible.
[0037] like Figure 1 , Figure 3 and Figure 5As shown, a plurality of first sludge discharge outlets 5 are opened on the inner side of the dehydration zone 2, and the first sludge discharge outlets 5 are all connected to the adjacent connecting support pipes 401. The waste sludge flowing out of the connecting support pipes 401 falls into the first sludge discharge outlets 5 under the action of inertia, and is discharged from the first sludge discharge outlets 5 to separate from the mixed gas.
[0038] like Figure 1 As shown, a second sludge discharge port 6 is also opened on the inner side of the dehydration zone 2. When the discharge from the first sludge discharge port 5 is all waste sludge, the second sludge discharge port 6 is opened to discharge the waste sludge downstream of the mixed gas, thereby sharing the discharge pressure of the first sludge discharge port 5 and reducing the waste sludge remaining in the discharge zone 3.
[0039] like Figure 1 As shown, a separation slag collector 7 is fixed inside the dehydration zone 2. The separation slag collector 7 covers the dehydration zone 2 in a ring shape. The separation slag collector 7 is penetrated by the second mud slag discharge port 6. The separation slag collector 7 is used to limit the waste slag and the mixed gas, so that the waste slag can fall on the inner wall of the separation slag collector 7 and then be discharged along the second mud slag discharge port 6.
[0040] like Figure 2 As shown, the internal perspective structure of a traditional mining wet dust removal fan is given. The dust-containing gas is sequentially introduced into the three-phase mixing zone 1 and the dehydration zone 2. A water film is sprayed and arranged in the three-phase mixing zone 1 to perform wet dust removal and dust reduction. A mixed gas is generated in the dehydration zone 2, and part of the waste slag leaves from the discharge zone 3. The dust removal efficiency is not ideal.
[0041] In summary, the damping coefficient of the water collection assembly 4 is low, the water collection is stable and the discharge is smooth, the structural resistance and the turbulence separation are balanced, and several water collection assemblies 4 can be set in series at multiple points along the central axis of the dehydration zone 2, and can also be set in parallel or in series along the flow field section to collect water at multiple points to achieve better dust removal efficiency.
[0042] The working principle of the utility model is as follows: when working, the dust-containing gas is sequentially introduced into the three-phase mixing zone 1 and the dehydration zone 2, a water film is sprayed and arranged in the three-phase mixing zone 1, and a mixed gas is generated in the dehydration zone 2. The water collecting assembly 4 is arranged on the central axis of the mixed flow of the wet dust collector. Due to the structural arrangement of the guide drain cone 403, the radial water stop ring 404 and the axial water stop ring increasing along the gradient, a turbulent effect can be generated on the flow field, which facilitates the mixed gas to flow to the outer layer.
[0043] On the one hand, the mixed gas enters the interior of the guide drain cone 403 along the drain groove 405, and is drained to the inner wall of the dehydration zone 2 through the connecting support tube 401, forming a centrifugal effect, so that the waste residue and water with larger mass in the mixed gas are thrown away and attached to the inner wall of the dehydration zone 2 for separation. The effect of centrifugal separation of waste residue can be achieved without using cyclone gas, and the obstruction caused by the friction of the waste residue can be ignored, which is beneficial to improving the desolidification and water collection efficiency.
[0044] On the other hand, the leeward side of the water collection assembly 4 increases the radial static pressure gradient of the flow field, causing the solid and liquid phases originally in the separation front range to flow to the outer layer, further improving the efficiency of separating the solid and liquid phases in the mixed gas.
[0045] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.
Claims
1. A water collector for a wet dust collector, comprising a dehydration zone (2), characterized in that: A water collection assembly (4) is arranged inside the dehydration zone (2); The water collection assembly (4) comprises a base plate (402), the central axis of the base plate (402) coincides with the central axis of the dehydration zone (2), the base plate (402) comprises a base plate and an outer axial water stop ring, two symmetrical guide and drain cones (403) are respectively fixed in the middle of the two sides of the base plate, the two guide and drain cones (403) are both hollow structures, and radial water stop rings (404) are fixed on the conical surfaces of the two guide and drain cones (403), and the two radial water stop rings (404) are parallel to the base plate; It also includes a plurality of connecting support tubes (401) distributed along a circumferential array, one end of each of the connecting support tubes (401) is connected to two guide drain cones (403), and the other end of each of the connecting support tubes (401) is connected to the inner wall of the dehydration zone (2). The cone surfaces of the two guide drain cones (403) are also spaced apart with a plurality of drain grooves (405), and the outer edges of the drain grooves (405) are fixedly connected to the inner edges of adjacent radial water stop rings (404).
2. A water collector for a wet dust collector according to claim 1, characterized in that: The ports of the connecting support tube (401) away from the base plate (402) are all in the form of a middle protruding structure.
3. A water collector for a wet dust collector according to claim 1, characterized in that: The axial water stop ring is arranged on the outer diameter of the base plate and is completely sealed, so that the two sides of the base plate (402) form a symmetrical plate shape with edges, and the spacing between the drainage grooves (405) is smaller than the size of the hole of the connecting support pipe (401).
4. A water collector for a wet dust collector according to claim 1, characterized in that: The two radial water stop rings (404) are respectively fixed at the middle of the two guide and drain cones (403) and are parallel to the base plate of the base plate (402). The maximum outer diameter of the two radial water stop rings (404) is less than three quarters of the outer diameter of the bottom surface of the guide and drain cone (403).
5. The water collector for a wet dust collector according to claim 1, characterized in that: A plurality of first sludge discharge outlets (5) are provided inside the dehydration zone (2), and the first sludge discharge outlets (5) are all connected to adjacent connecting support pipes (401).
6. A water collector for a wet dust collector according to claim 5, characterized in that: A second sludge discharge port (6) is also provided inside the dehydration zone (2).
7. A water collector for a wet dust collector according to claim 6, characterized in that: A separation slag collector (7) is fixed inside the dehydration zone (2), and the separation slag collector (7) is penetrated by the second sludge discharge port (6).