Carbon kiln waste heat steam boiler dry bottom hopper device
By adopting a detachable liner unit design inside the cold ash hopper, the problem of easy wear of traditional cold ash hopper liners is solved, making replacement simple and reducing costs, and improving equipment operating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional cold ash hopper inner wall liners are prone to wear, resulting in a short service life, requiring frequent replacements. The replacement process is cumbersome, may damage the ash hopper, and is costly.
The liner unit features a detachable design and is connected via snap-fit connectors and fasteners. The liner unit is equipped with flow guide grooves and stress buffer grooves to accommodate different inner wall areas and wear zones, simplifying installation and disassembly.
It extends the service life of the liner, reduces maintenance costs, simplifies the replacement process, avoids damage to the ash hopper, and improves operating efficiency.
Smart Images
Figure CN224018859U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of waste heat steam boiler, concretely to a carbon kiln waste heat steam boiler cold ash bucket device. BACKGROUND
[0002] The carbon kiln waste heat steam boiler is a special boiler for recycling waste heat energy in the carbon production process, which converts the high-temperature flue gas discharged by the kiln, the heat dissipation of the kiln body and the waste heat of product cooling into steam to realize efficient energy utilization. The boiler cold ash bucket is one of the key components of the carbon kiln waste heat steam boiler, which collects and discharges the ash and slag at the bottom of the furnace, and its performance directly affects the operation efficiency, maintenance cost and safety of the boiler. The inner wall of the traditional cold ash bucket is made of high-chromium cast iron or ordinary ceramic lining plate, which is easily worn out under the continuous scouring of high-temperature ash and slag, resulting in perforation or peeling of the lining plate, and the average service life of the lining plate is about one year, so the lining plate needs to be replaced frequently.
[0003] The existing lining plate is generally directly welded on the ash bucket, and needs to be cut in a large area when replaced, which may damage the ash bucket, and the replacement method is complicated, and the cutting debris needs to be cleaned, so the replacement of the lining plate takes a long time. UTILITY MODEL CONTENT
[0004] To solve the technical problems in the background art, the utility model provides a carbon kiln waste heat steam boiler cold ash bucket device.
[0005] The utility model technical scheme is as follows:
[0006] A carbon kiln waste heat steam boiler cold ash bucket device, comprising a conical cold ash bucket body, the inner wall of the cold ash bucket body is provided with a clamping seat along the transverse direction, the clamping seat is provided with a clamping groove along the length direction thereof, a plurality of lining plate units connected by splicing are clamped on the clamping groove, the upper part of the lining plate unit is provided with a clamping strip matched with the clamping groove, one side of the lining plate unit close to the inner wall of the cold ash bucket is tightly attached to the inner wall, and the lower part of the lining plate unit is connected to the inner wall through a plurality of fasteners, one end of the fastener is connected to the inner wall, and the other end is detachably connected to the lining plate unit.
[0007] The opposite sides of the lining plate unit along the length direction of the clamping strip are respectively provided with a splicing strip and a splicing groove, and the splicing strip and the splicing groove are matched.
[0008] To facilitate the flow of ash and slag along the preset path and avoid disordered accumulation, one side of the lining plate unit close to the inner wall is a bottom surface, the opposite side is a top surface, the top surface is provided with a plurality of flow guide grooves, the length direction of the flow guide grooves is perpendicular to the length direction of the clamping strip, and the depth of the flow guide grooves is 5-8 mm.
[0009] To disperse the impact force of the ash and slag on the lining plate, the bottom surface is provided with a plurality of stress buffer grooves, and the length direction of the stress buffer grooves is parallel to the length direction of the clamping strip.
[0010] Further, the upper surfaces of the clamping seat and the clamping strip are inclined surfaces, and the two inclined surfaces are flush.
[0011] Preferably, the flow guide groove is a V-shaped groove or a rectangular groove.
[0012] Preferably, the cross section of the stress buffer groove is U-shaped or polygonal structure.
[0013] Further, the stress buffer groove and the flow guide groove are staggered.
[0014] The specific structure of the fastener is that the fastener comprises a connecting plate arranged in the stress buffer groove on the opposite side of the lining plate unit, the connecting plate is arranged away from the clamping strip, the connecting plate is provided with a through hole, the inner wall is welded with a threaded rod corresponding to the through hole, and the threaded rod is connected with the connecting plate through a connecting piece.
[0015] The beneficial effects of the utility model lie in:
[0016] The carbon kiln waste heat steam boiler has a large-particle carbon residue friction lining plate unit, a plurality of lining plate units are connected through splicing, can be spliced and installed according to the inner wall area or main wear area of the cold ash bucket body, compared with the whole lining plate welded on the inner wall of the cold ash bucket, the utility model can adaptively install the lining plate unit according to the size of the inner wall, improve the protection area of the lining plate unit to the inner wall, and can be installed according to the main wear area, and the use cost is reduced.
[0017] The lining plate unit can be detachably connected with the inner wall of the cold ash bucket body through the clamping seat and the fastener, the inner wall of the cold ash bucket body is arranged downwardly and obliquely, the upper end of the lining plate unit is clamped in the clamping groove of the clamping seat through the clamping strip, and the body of the lining plate unit is also arranged obliquely, under the action of gravity, the bottom surface of the lining plate unit is tightly attached to the inner wall, one end of the lining plate unit away from the clamping seat is fastened through the fastener, the installation of the lining plate unit is realized, and the connecting mode of the lining plate unit and the cold ash bucket body is simple and reliable, and the lining plate unit is convenient to install and detach.
[0018] The flow guide groove can guide the ash residue to flow along the preset path, and avoid the ash residue to be disorderly accumulated on the lining plate unit.
[0019] The stress buffer groove can disperse the impact force of the ash residue on the lining plate, reduce the local overheating phenomenon of the lining plate body, and reduce the overall weight of the lining plate unit, so that the workers can conveniently splice and install the plurality of lining plate units. BRIEF DESCRIPTION OF DRAWINGS
[0020] In the drawings:
[0021] Figure 1 It is a structural schematic view.
[0022] Figure 2 is a schematic view of a single lining plate unit structure;
[0023] Figure 3 is a schematic view of a single lining plate unit structure; Figure 2 is a schematic view of an enlarged structure at A in the middle;
[0024] Figure 4 is a bottom view;
[0025] Figure 5 is a schematic view of a plurality of lining plate units spliced together;
[0026] The components represented by the reference numerals in the drawings are as follows:
[0027] 1. Ash cooler body; 2. Clamping seat; 21. Clamping groove; 22. First inclined surface; 3. Lining plate unit; 31. Top surface; 32. Bottom surface; 33. Splicing strip; 34. Splicing groove; 35. Flow guide groove; 36. Stress buffer groove; 37. Clamping strip; 371. Second inclined surface; 4. Connecting plate; 41. Through hole; 5. Threaded rod; 6. Connecting piece. DETAILED DESCRIPTION
[0028] Referring to Figure 1 , Figure 2 and Figure 3 , a carbon kiln waste heat steam boiler ash cooler device includes a conical ash cooler body 1, the inner wall of the ash cooler body 1 is provided with a clamping seat 2 in the transverse direction, the clamping seat 2 is provided with a clamping groove 21 along the length direction thereof, a plurality of spliced lining plate units 3 are clamped on the clamping groove 21, the upper part of the lining plate unit 3 is provided with a clamping strip 37 adapted to the clamping groove 21, one side of the lining plate unit 3 close to the inner wall is tightly attached to the inner wall, the lower part of the lining plate unit 3 is connected to the inner wall through a plurality of fasteners, two fasteners are arranged on the opposite sides of the lower part of each lining plate unit 3 in the embodiment, one end of the fastener is connected to the inner wall, and the other end is detachably connected to the lining plate unit 3. Figure 1 Only the inner wall on one side of the ash cooler body 1 is shown to install the lining plate unit 3 in the middle, and a plurality of lining plate units 3 can be installed on each inner wall of the ash cooler body 1 according to actual conditions.
[0029] The lining plate unit 3 can be detachably connected to the inner wall of the ash cooler body 1 through the clamping seat 2 and the fastener, the inner wall of the ash cooler body 1 is arranged to be inclined downward, the upper end of the lining plate unit 3 is clamped in the clamping groove 21 of the clamping seat 2 through the clamping strip 37, and the body of the lining plate unit 3 is also arranged to be inclined, the bottom surface 32 of the lining plate unit 3 is tightly attached to the inner wall under the action of gravity, and the end of the lining plate unit 3 away from the clamping seat 2 is fastened through the fastener, so that the installation of the lining plate unit 3 is realized, and the connection mode of the lining plate unit 3 and the ash cooler body 1 is simple and reliable, facilitating installation and disassembly.
[0030] Referring to Figure 4As shown, the lining plate unit 3 is provided with a splicing strip 33 and a splicing groove 34 on the opposite sides along the length direction of the clamping strip 37, the splicing strip 33 can be a rectangular structure, a semicircular arc structure or a polygonal structure, the splicing strip 33 and the splicing groove 34 are matched, used for splicing and connecting one side of the lining plate unit 3 with another adjacent lining plate unit 3, a plurality of lining plate units 3 can be spliced and connected, can be spliced and installed according to the inner wall area or the main wear area of the ash bucket body 1, compared with the whole lining plate welded on the inner wall of the ash bucket, the lining plate unit 3 of the utility model can be adaptively installed according to the size of the inner wall, improve the protection area of the lining plate unit 3 to the inner wall, and can be installed according to the main wear area, thereby reducing the use cost.
[0031] Referring to Figure 2 As shown, in order to guide the ash slag to flow along the preset path and avoid disorderly accumulation, one side of the lining plate unit 3 close to the inner wall is a bottom surface 32, the opposite side of the bottom surface 32 is a top surface 31, the top surface 31 is provided with a plurality of flow guide grooves 35, the plurality of flow guide grooves 35 are arranged in parallel and have consistent spacing, the length direction of the flow guide groove 35 is perpendicular to the length direction of the clamping strip 37, and the depth of the flow guide groove 35 is 5-8 mm. The flow guide groove 35 is a V-shaped groove or a rectangular groove, the flow guide groove 35 of the embodiment is a V-shaped groove, the included angle of the side surface of the V-shaped groove can form a "landslide effect", and the ash slag is difficult to stay, and the processing cost of the V-shaped groove is relatively low.
[0032] Referring to Figure 3 As shown, the bottom surface 32 of the lining plate unit 3 is provided with a plurality of stress buffer grooves 36, the plurality of stress buffer grooves 36 are arranged in parallel and have equal spacing. The stress buffer groove 36 can disperse the impact force of the ash slag on the lining plate, reduce the local overheating phenomenon of the ash bucket body, and the stress buffer groove 36 can reduce the overall weight of the lining plate unit, facilitating the splicing and installation of the plurality of lining plate units by the workers.
[0033] In order to facilitate the manufacture of the stress buffer groove 36 and not affect the overall strength of the lining plate unit 3, the length direction of the stress buffer groove 36 is parallel to the length direction of the clamping strip 37. The cross section of the stress buffer groove 36 is U-shaped or polygonal structure, and the cross section of the stress buffer groove 36 of the embodiment is rectangular structure. The positional relationship between the stress buffer groove 36 and the flow guide groove 35 is that the stress buffer groove 36 and the flow guide groove 35 are arranged alternately, which can avoid the stress buffer groove 36 and the flow guide groove 35 corresponding to each other in up and down, and the phenomenon that the local thickness of the lining plate unit 3 is relatively thin.
[0034] In order to facilitate the ash slag to smoothly fall from the upper part along the clamping seat 2 and the lining plate unit 3, the upper surface of the clamping seat 2 and the upper surface of the clamping strip 37 are both inclined surfaces, the upper surface of the clamping seat 2 is a first inclined surface 22, the upper surface of the clamping strip 37 is a second inclined surface 371, and the first inclined surface 22 and the second inclined surface 371 are flush, the two inclined surfaces are arranged in an inclined downward manner, the inclined direction is substantially the same as the falling direction of the ash slag, and is matched with the ash falling direction of the ash bucket body 1.
[0035] Referring to Figure 3 As shown, the specific structure of the fastener is that the fastener comprises a connecting plate 4 arranged in the stress buffer groove 36 on the opposite sides of the lining plate unit 3, the connecting plate 4 is arranged away from the clamping strip 37, the connecting plate 4 is provided with a through hole 41, the inner wall is welded with a threaded rod 5 corresponding to the through hole 41, the inner diameter of the through hole 41 is slightly larger than the outer diameter of the threaded rod 5, the threaded rod 5 can be arranged in the through hole 41, the threaded rod 5 is connected with the connecting plate 4 through a connecting piece 6, the connecting piece 6 can be a nut matched with the threaded rod 5, the nut is tightened, the connecting plate can be fastened downward, so that the lining plate unit 3 is fastened with the ash hopper body 1. The connecting plate 4, the threaded rod 5 and the nut of the embodiment are all located at the outer edge position of the lining plate unit 3, if the nut and the threaded rod 5 cannot be disassembled due to high temperature, the threaded rod 5 or the nut or the connecting plate 4 located at the outer side can be directly cut by cutting equipment, the cutting position is small, the cutting is convenient and fast, and the ash hopper body 1 will not be damaged.
Claims
1. A cold ash hopper device for a carbon kiln waste heat steam boiler, comprising a conical cold ash hopper body (1), characterized in that, The inner wall of the cold ash hopper body (1) is provided with a snap-fit seat (2) in the transverse direction. The snap-fit seat (2) is provided with a snap-fit groove (21) in the length direction. Multiple spliced liner units (3) are snapped onto the snap-fit groove (21). The upper part of the liner unit (3) is provided with a snap-fit strip (37) that is adapted to the snap-fit groove (21). The side of the liner unit (3) close to the inner wall of the cold ash hopper is in close contact with the inner wall. The lower part of the liner unit (3) is connected to the inner wall by multiple fasteners. One end of the fastener is connected to the inner wall, and the other end is detachably connected to the liner unit (3). The liner unit (3) is provided with splicing strips (33) and splicing grooves (34) on opposite sides along the length of the strip (37), and the splicing strips (33) and splicing grooves (34) are compatible with each other.
2. The cold ash hopper device for a carbon kiln waste heat steam boiler according to claim 1, characterized in that, The side of the liner unit (3) closest to the inner wall is the bottom surface (32), and the side opposite to the bottom surface (32) is the top surface (31). The top surface (31) is provided with multiple guide grooves (35). The length direction of the guide grooves (35) is perpendicular to the length direction of the card strip (37), and the depth of the guide grooves (35) is 5-8 mm.
3. The cold ash hopper device for a carbon kiln waste heat steam boiler according to claim 2, characterized in that, The bottom surface (32) is provided with multiple stress buffer grooves (36), and the length direction of the stress buffer grooves (36) is parallel to the length direction of the card strip (37).
4. The cold ash hopper device for a carbon kiln waste heat steam boiler according to claim 1, characterized in that, The upper surface of the card holder (2) and the upper surface of the card strip (37) are both inclined surfaces, and the two inclined surfaces are flush.
5. A cold ash hopper device for a carbon kiln waste heat steam boiler according to claim 3, characterized in that, The guide groove (35) is a V-shaped groove or a rectangular groove.
6. The cold ash hopper device for a carbon kiln waste heat steam boiler according to claim 5, characterized in that, The stress buffer groove (36) has a U-shaped or polygonal cross-section.
7. A cold ash hopper device for a carbon kiln waste heat steam boiler according to claim 6, characterized in that, The stress buffer groove (36) and the flow guide groove (35) are arranged alternately.
8. A cold ash hopper device for a carbon kiln waste heat steam boiler according to claim 3, characterized in that, The fastener includes a connecting plate (4), which is disposed in the stress buffer groove (36) on both sides of the liner unit (3). The connecting plate (4) is disposed away from the retaining strip (37). The connecting plate (4) has a through hole (41) and a threaded rod (5) corresponding to the through hole (41) is welded to the inner wall. The threaded rod (5) is connected to the connecting plate (4) through a connector (6).