Air cap hole with adjustable opening area for fluidized bed furnace

Abstract

The utility model relates to the technical field of fluidized bed furnaces, in particular to an opening area-adjustable air cap hole of a fluidized bed furnace, which comprises a fluidized bed furnace main body, an air cap arranged at the top of the fluidized bed furnace main body and an air pipe arranged at the top of the air cap, and a plurality of through holes communicated with the outside are arranged on the air pipe. A supporting plate is fixedly installed on a top cylinder of the fluidized bed furnace body, a screw is in threaded connection with the supporting plate, protruding columns are fixedly installed on rod bodies at the two ends of the screw, a fixing plate is rotationally connected to the protruding column located on the upper portion, a sealing plug is fixedly installed at the end of the fixing plate, and the sealing plug is located in the air pipe and matched with the air pipe in an inserted mode. A rectangular groove is formed in the lower protruding column, a rectangular inserting rod is inserted into the rectangular groove in a matched mode, a long rod is fixedly installed at the bottom end of the rectangular inserting rod, a guide rod is fixedly installed on the bottom face of the fixing plate, and the guide rod penetrates through the supporting plate and is in sliding connection with the supporting plate. The hole opening area can be conveniently adjusted, and the hole opening device is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of boiling furnaces, in particular to a hood opening with adjustable opening area of a boiling furnace. Background Art

[0002] In the energy and chemical industries, fluidized bed furnaces, as a highly efficient and versatile thermal energy conversion equipment, are widely used in the combustion and gasification processes of various fuels such as coal, biomass, and waste. The core of the fluidized bed furnace lies in its internal fluidized bed technology, which uses high-speed airflow to keep the fuel particles in a suspended or semi-suspended state, achieving efficient combustion and gasification. The hood is one of the key components of the fluidized bed furnace, and its design directly affects the distribution of airflow in the furnace, the fluidization effect of the fuel, and the overall combustion efficiency.

[0003] Traditional fluidized bed furnace hoods mostly use a fixed opening design, meaning the number and diameter of the air intake holes on the hood are fixed upon manufacture. The ventilation area of the openings remains constant throughout each use, resulting in an inability to adjust the conduction area of the openings as needed. This hinders adjustment based on the actual production process, impacting performance and causing inconvenience to users. In light of this, we propose a fluidized bed furnace hood with adjustable opening area. Utility Model Content

[0004] The purpose of the present invention is to provide a hood opening with adjustable opening area for a boiling furnace, so as to solve the defects mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The opening area of the boiling furnace is adjustable, and the hood opening comprises a boiling furnace main body, a hood arranged on the top of the boiling furnace main body, and an air duct arranged on the top of the hood. The air duct is provided with a plurality of through holes connected to the outside world. A support plate is fixedly installed on the top cylinder of the boiling furnace main body, and a screw is threadedly connected to the support plate. Bosses are fixedly installed on the rod body at both ends of the screw. A fixing plate is rotatably connected to the boss located above, and a sealing plug is fixedly installed on the end of the fixing plate. The sealing plug is located in the air duct and is plugged in with the air duct. A rectangular groove is provided in the boss located below, and a rectangular plug is plugged in the rectangular groove, and a long rod is fixedly installed on the bottom end of the rectangular plug.

[0007] Preferably, a limiting ring is fixedly installed on the top end of the sealing plug, and the outer diameter of the limiting ring is larger than the outer diameter of the air duct.

[0008] Preferably, an axial hole is provided on the end plate body of the fixing plate, a first bearing is fixedly mounted on the upper boss, and an outer ring of the first bearing is fixedly mounted on the hole wall of the axial hole.

[0009] Preferably, a guide rod is fixedly mounted on the bottom surface of the fixed plate, and the guide rod passes through the support plate and is slidably connected to the support plate.

[0010] Preferably, a flaring sleeve is fixedly mounted on the bottom end of the boss located below, and the inner diameter of the flaring sleeve increases sequentially from top to bottom.

[0011] Preferably, the cross-sections of the rectangular groove and the rectangular insertion rod are both rectangular, and the size of the rectangular insertion rod is adapted to the size of the rectangular groove.

[0012] Preferably, a handle is fixedly mounted on the bottom end of the long rod, and a grip is rotatably connected to the rod body at the bottom end of the long rod.

[0013] Preferably, two upper and lower symmetrical second bearings are fixedly mounted on the inner wall of the handle, the long rod passes through the second bearings and is fixedly mounted on the inner ring of the second bearing, and an anti-slip layer is provided on the outer surface of the handle.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model is provided with a sealing plug, which can be driven to move by rotating the screw. By moving the sealing plug up and down, a corresponding number of through holes in the air duct are sealed, so that the conduction area of the opening can be adjusted, which is convenient to use.

[0016] 2. The utility model is provided with a rectangular groove, a long rod and a rectangular insertion rod. After the rectangular insertion rod is inserted into the rectangular groove, the screw rod can be driven to rotate by rotating the long rod to adjust the upper and lower positions of the sealing plug, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 This is one of the partial structural diagrams of the utility model;

[0020] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is the second schematic diagram of the partial structure of the utility model;

[0022] The meaning of each number in the figure is:

[0023] 1. Boiling furnace body; 10. Air hood; 11. Air duct; 111. Through hole; 12. Support plate;

[0024] 2. Sealing plug; 20. Limiting ring; 21. Fixing plate; 211. Shaft hole; 212. Guide rod; 22. Screw; 221. Boss; 222. Rectangular groove; 23. First bearing; 24. Expanding sleeve;

[0025] 3. Long rod; 30. Rectangular plug rod; 31. Grip; 311. Second bearing; 312. Anti-slip layer; 32. Handle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: a hood opening of a boiling furnace with adjustable opening area, comprising a boiling furnace body 1, a hood 10 arranged on the top of the boiling furnace body 1 and an air duct 11 arranged on the top of the hood 10, the air duct 11 is provided with a plurality of through holes 111 communicating with the outside world, a support plate 12 is fixedly installed on the top cylinder of the boiling furnace body 1, a screw 22 is threadedly connected to the support plate 12, and bosses 221 are fixedly installed on both ends of the screw 22, a fixing plate 21 is rotatably connected to the boss 221 located above, a sealing plug 2 is fixedly installed on the end of the fixing plate 21, the sealing plug 2 is located in the air duct 11 and plugged into the air duct 11 to achieve corresponding blocking operation on the through holes 111;

[0028] Specifically, a rectangular groove 222 is provided in the lower boss 221, and a rectangular insertion rod 30 is inserted into the rectangular groove 222. A long rod 3 is fixedly installed at the bottom end of the rectangular insertion rod 30, so that the staff can stand on the ground and drive the boss 221 and the screw 22 to rotate by rotating the long rod 3.

[0029] In this embodiment, a limit ring 20 is fixedly installed on the top of the sealing plug 2. The outer diameter of the limit ring 20 is larger than the outer diameter of the air duct 11, thereby limiting the insertion distance of the sealing plug 2.

[0030] Specifically, an axial hole 211 is provided on the end plate body of the fixed plate 21, and a first bearing 23 is fixedly installed on the upper boss 221. The outer ring of the first bearing 23 is fixedly installed on the hole wall of the axial hole 211, so that the fixed plate 21 will not block the normal rotation of the screw 22 and the boss 221.

[0031] Furthermore, a guide rod 212 is fixedly mounted on the bottom surface of the fixed plate 21 . The guide rod 212 passes through the support plate 12 and is slidably connected to the support plate 12 , thereby guiding the up and down movement of the fixed plate 21 .

[0032] In addition, a flaring sleeve 24 is fixedly installed at the bottom end of the boss 221 located below, and the inner diameter of the flaring sleeve 24 increases from top to bottom; the cross-sections of the rectangular groove 222 and the rectangular insertion rod 30 are both rectangular, and the size of the rectangular insertion rod 30 is adapted to the size of the rectangular groove 222, so that the rectangular insertion rod 30 can be inserted into the rectangular groove 222 more smoothly along the flaring sleeve 24.

[0033] It is worth noting that a handle 32 is fixedly installed on the bottom end of the long rod 3, and a grip 31 is rotatably connected to the rod body at the bottom end of the long rod 3, so that the long rod 3 can be rotated by rotating the handle 32.

[0034] It is worth noting that two symmetrical second bearings 311 are fixedly installed on the inner wall of the handle 31, and the long rod 3 passes through the second bearing 311 and is fixedly installed on the inner ring of the second bearing 311. An anti-slip layer 312 is provided on the outer surface of the handle 31, so that it is smoother to hold the handle 31 and then turn the handle 32.

[0035] When the opening area of the hood opening of the boiling furnace of the present invention is adjustable, hold the handle 31, insert the rectangular rod 30 into the rectangular groove 222 along the flaring sleeve 24, and then turn the handle 32. After the handle 32 is rotated, the long rod 3, the rectangular rod 30, the boss 221 and the screw 22 are driven to rotate. When the screw 22 rotates in the forward or reverse direction, it can move upward or downward synchronously, further driving the fixed plate 21 and the sealing plug 2 to move, thereby adjusting the blocking area of the sealing plug 2 to the through hole 111 and completing the opening area adjustment operation.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluidized bed furnace with an adjustable opening area hood opening, comprising a fluidized bed furnace body (1), a hood (10) disposed on the top of the fluidized bed furnace body (1), and an air duct (11) disposed on the top of the hood (10), characterized in that: The air duct (11) is provided with a plurality of through holes (111) communicating with the outside world, a support plate (12) is fixedly installed on the top cylinder of the boiling furnace body (1), a screw (22) is threadedly connected to the support plate (12), and bosses (221) are fixedly installed on the rod bodies at both ends of the screw (22), the boss (221) located at the top is rotatably connected to a fixing plate (21), a sealing plug (2) is fixedly installed on the end of the fixing plate (21), the sealing plug (2) is located in the air duct (11) and is plugged into and matched with the air duct (11), a rectangular groove (222) is provided in the boss (221) located at the bottom, a rectangular plug (30) is plugged into and matched with the rectangular groove (222), and a long rod (3) is fixedly installed at the bottom end of the rectangular plug (30).

2. The hood opening with adjustable opening area of the boiling furnace according to claim 1, characterized in that: A limiting ring (20) is fixedly mounted on the top end of the sealing plug (2), and the outer diameter of the limiting ring (20) is larger than the outer diameter of the air duct (11).

3. The opening area adjustable hood opening of the boiling furnace according to claim 1, characterized in that: An axial hole (211) is provided on the end plate body of the fixing plate (21), a first bearing (23) is fixedly mounted on the upper boss (221), and an outer ring of the first bearing (23) is fixedly mounted on the hole wall of the axial hole (211).

4. The hood opening with adjustable opening area of the boiling furnace according to claim 1, characterized in that: A guide rod (212) is fixedly mounted on the bottom surface of the fixed plate (21), and the guide rod (212) passes through the support plate (12) and is slidably connected to the support plate (12).

5. The hood opening with adjustable opening area of the boiling furnace according to claim 1, characterized in that: A flaring sleeve (24) is fixedly mounted on the bottom end of the boss (221) located below, and the inner diameter of the flaring sleeve (24) increases sequentially from top to bottom.

6. The hood opening with adjustable opening area of the boiling furnace according to claim 1, characterized in that: The cross-sections of the rectangular groove (222) and the rectangular insertion rod (30) are both rectangular, and the size of the rectangular insertion rod (30) is compatible with the size of the rectangular groove (222).

7. The hood opening with adjustable opening area of the boiling furnace according to claim 1, characterized in that: A handle (32) is fixedly mounted on the bottom end of the long rod (3), and a grip (31) is rotatably connected to the rod body at the bottom end of the long rod (3).

8. The hood opening with adjustable opening area of the boiling furnace according to claim 7, characterized in that: Two upper and lower symmetrical second bearings (311) are fixedly mounted on the inner wall of the handle (31); the long rod (3) passes through the second bearings (311) and is fixedly mounted on the inner ring of the second bearing (311); and an anti-slip layer (312) is provided on the outer surface of the handle (31).

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