Circulating fluidized bed boiler dredging device

Abstract

The utility model provides a circulating fluidized bed boiler dredging device, which relates to the technical field of boilers, and comprises a support and a prying force rod, the support is provided with a prying force groove, the prying force rod is lapped in the prying force groove, one end of the prying force rod is movably provided with a first dredging rod, and the upper end of the first dredging rod is movably provided with a second dredging rod; a U-shaped opening is formed in one end of the prying rod, and the lower end of the first dredging rod is movably installed through a first connecting piece and the U-shaped opening; the prying force rod is erected on the prying force groove of the support, the first dredging rod and the second dredging rod are connected to the prying force rod and used for being inserted into the slagging pipe, dredging can be achieved only by pressing the prying force rod to enable the first dredging rod and the second dredging rod to move in the slagging pipe, the lever principle is adopted, slag poking is simple and labor-saving, the blocked slagging pipe can be easily dredged, and the dredging effect is good. And in addition, long-distance operation is achieved, burns and scalds are avoided, and higher safety is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a circulating fluidized bed boiler dredging device. Background Art

[0002] A boiler is a device that uses fuel combustion to heat boiler feed water to produce steam with a certain temperature and pressure. The generated steam can be heated into saturated steam or superheated steam as needed. The circulating fluidized bed boiler combustion technology is a high-efficiency, low-pollution clean combustion technology that has gradually developed in the past 20 years. It has the advantages of high combustion efficiency, wide adaptability to coal types, low concentration of harmful gas emissions in flue gas, large load adjustment range, and comprehensive utilization of ash and slag.

[0003] The material circulation of a circulating fluidized bed boiler is completed by the joint action of components such as a furnace, a separator, a riser, a return device, a return leg, and a return air, thereby realizing the cyclic combustion and utilization of materials. A slag discharge pipe is arranged on the air distribution plate. When the material layer thickness exceeds a certain amount, the bottom material needs to be discharged through the slag discharge pipe. In the actual operation process, when foreign matter is mixed into the bottom material or coking into large pieces, the slag discharge pipe will be blocked. At this time, the slag discharge pipe needs to be unblocked in time, otherwise, serious consequences such as shutdown due to the thick material layer may occur. The current conventional method is to use a steel bar of about 8mm to poke into the slag discharge pipe for manual unblocking, which is time-consuming and labor-intensive, and is prone to burns and scalds. Therefore, the utility model proposes a circulating fluidized bed boiler unblocking device to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the utility model proposes a circulating fluidized bed boiler unclogging device, which is simple and labor-saving when poking slag, and can easily unblock the blocked slag discharge pipe, thereby ensuring the normal slag discharge of the boiler, and can be operated at a long distance to avoid burns and scalds, which is safer.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a circulating fluidized bed boiler dredging device, comprising a support and a prying rod, the support is provided with a prying groove, the prying rod is set inside the prying groove, a first dredging rod is movably installed at one end of the prying rod, and a second dredging rod is movably installed at the upper end of the first dredging rod;

[0006] A U-shaped opening is provided at one end of the pry rod, the lower end of the first dredging rod is movably installed through a first connecting piece and the U-shaped opening, a U-shaped tube is provided at the upper end of the first dredging rod, and an inner groove is provided on the inner side of the U-shaped tube, the lower end of the second dredging rod is movably installed through a second connecting piece and the inner groove, and a round tip is provided at the upper end of the second dredging rod.

[0007] Furthermore, an anti-scalding and heat-insulating sleeve is provided on one end of the outer side of the prying rod, and the anti-scalding and heat-insulating sleeve is used for hand-holding.

[0008] Furthermore, a first opening is provided at the lower end of the first dredging rod, the first connecting member includes a first screw and a first nut, the first screw is installed on the U-shaped opening and fixed by the first nut, and the first screw passes through the first opening.

[0009] Furthermore, a second opening is provided at the lower end inside the second dredging rod, and the second connecting member includes a second screw and a second nut. The second screw is installed on the inner groove and fixed by the second nut, and the second screw passes through the second opening.

[0010] Furthermore, the support is formed by welding a plurality of groups of steel pipes, and the upper end of the first dredging rod is welded and fixed to the U-shaped pipe.

[0011] Furthermore, the first dredging rod and the second dredging rod are used to be inserted into the interior of the slag discharge pipe, and the slag discharge pipe is arranged below the boiler furnace.

[0012] Furthermore, an air distribution plate is provided inside the boiler furnace, and the upper and lower parts of the air distribution plate are the bottom material and the wind chamber respectively, and the upper end of the slag discharge pipe is connected to the air distribution plate.

[0013] Furthermore, a movable base is provided at the bottom of the support, four sets of universal wheels are provided at the bottom of the movable base, and a handle is provided at one end of the movable base.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model sets up a prying rod on the prying groove of the support, and the prying rod is connected with the first dredging rod and the second dredging rod for inserting into the slag discharge pipe. When in use, it only needs to press the prying rod so that the first dredging rod and the second dredging rod can be dredged when the slag discharge pipe moves. The lever principle is simple and labor-saving when poking slag, and the blocked slag discharge pipe can be easily dredged, thereby ensuring the normal slag discharge of the boiler, and the long-distance operation can avoid burns and scalds, which is safer. The support is assembled on the mobile base, which is convenient to use. Secondly, it can be used as a placement rack, and the poking rods can be placed on it after use.

[0016] 2. In the utility model, the first dredging rod and the U-shaped opening are movably installed through the first screw and the first nut, and the second dredging rod and the first dredging rod are movably installed through the second screw and the second nut, so as to facilitate the adjustment of the angle during dredging. The first connecting member and the second connecting member have the same structure; and according to the needs of actual application, multiple groups of first dredging rods can be connected in series to meet the needs of dredging at different distances. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is the front view of the utility model;

[0018] Figure 2 It is a schematic diagram of the pry bar of the utility model;

[0019] Figure 3 This is a schematic diagram of a first dredging rod of the utility model;

[0020] Figure 4 This is a schematic diagram of a second dredging rod of the utility model;

[0021] Figure 5 It is a schematic diagram of the slag discharge pipe of the utility model.

[0022] Among them: 1. Support; 2. Pry rod; 3. First dredging rod; 4. Second dredging rod; 5. U-shaped mouth; 6. U-shaped tube; 7. Round tip; 8. Anti-scalding insulation sleeve; 9. First opening; 10. First screw; 11. First nut; 12. Second opening; 13. Second screw; 14. Second nut; 15. Slag discharge pipe; 16. Boiler furnace; 17. Bottom material; 18. Wind chamber; 101. Mobile base. DETAILED DESCRIPTION

[0023] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0024] Example 1

[0025] according to Figure 1-5 As shown, this embodiment proposes a circulating fluidized bed boiler dredging device, comprising a support 1 and a prying rod 2, wherein the support 1 is provided with a prying groove, the prying rod 2 is arranged inside the prying groove, a first dredging rod 3 is movably mounted on one end of the prying rod 2, and a second dredging rod 4 is movably mounted on the upper end of the first dredging rod 3;

[0026] A U-shaped opening 5 is provided at one end of the pry rod 2, the lower end of the first dredging rod 3 is movably installed through the first connecting piece and the U-shaped opening 5, the upper end of the first dredging rod 3 is provided with a U-shaped tube 6, and an inner groove is provided on the inner side of the U-shaped tube 6, the lower end of the second dredging rod 4 is movably installed through the second connecting piece and the inner groove, and the upper end of the second dredging rod 4 is provided with a round tip 7.

[0027] When the circulating fluidized bed boiler dredging device described in this embodiment is used, a prying rod 2 is set up on the prying groove of the support 1, and the first dredging rod 3 and the second dredging rod 4 are connected to the prying rod 2, which is used to be inserted into the slag discharge pipe 15. When in use, it is only necessary to press the prying rod 2 so that the first dredging rod 3 and the second dredging rod 4 can be moved in the slag discharge pipe 15 to dredge. By using the lever principle, it is simple and labor-saving to poke the slag, and the blocked slag discharge pipe 15 can be easily dredged, thereby ensuring the normal slag discharge of the boiler, and the remote operation can avoid burns and scalds, which is safer.

[0028] Furthermore, the end of the pry bar 2 away from the first dredging rod 3 is provided with an anti-scalding heat-insulating sleeve 8, and the anti-scalding heat-insulating sleeve 8 is used for hand-holding. The provision of the anti-scalding heat-insulating sleeve 8 can prevent the operator from being scalded. In this embodiment, the pry bar 2 is preferably a ф50×5 steel pipe.

[0029] Furthermore, a first opening 9 is provided at the lower end of the first dredging rod 3, and the first connecting member includes a first screw 10 and a first nut 11. The first screw 10 is installed on the U-shaped opening 5 and fixed by the first nut 11, and the first screw 10 passes through the first opening 9. A second opening 12 is provided at the lower end of the second dredging rod 4, and the second connecting member includes a second screw 13 and a second nut 14. The second screw 13 is installed on the inner groove and fixed by the second nut 14, and the second screw 13 passes through the second opening 12.

[0030] When in use, the first dredging rod 3 and the U-shaped mouth 5 are movably installed by the first screw 10 and the first nut 11, and the second dredging rod 4 and the first dredging rod 3 are movably installed by the second screw 13 and the second nut 14, which is convenient for adjusting the angle during dredging. The first connecting member and the second connecting member have the same structure. According to the needs of practical applications, multiple groups of first dredging rods 3 can be connected in series to adapt to the dredging needs of different distances. Ensure that the dredging rod can be adjusted and moved according to the on-site conditions. In this embodiment, the dredging rod is made of ф38×4 stainless steel pipe, the material is 310S, which can withstand a temperature of 1200℃, and the length is preferably not greater than the height of the slag discharge pipe 15 from the ground, generally about 1500mm. The U-shaped tube 6 is made of ф50×5 stainless steel pipe, and an inner groove is opened at the end of the tube to connect another dredging rod, while ensuring that the dredging rod can be moved and folded.

[0031] Furthermore, the support 1 is welded by multiple groups of steel pipes, and the upper end of the first dredging rod 3 is welded and fixed to the U-shaped pipe 6. Such a configuration makes the installation of the support 1 simple and convenient. In this embodiment, the support 1 is welded by ф60×5 steel pipes into an X-shaped or rectangular structure.

[0032] Furthermore, a mobile base 101 is provided at the bottom of the support 1, and four sets of universal wheels are provided at the bottom of the mobile base 101, and a handle is provided at one end of the mobile base 101. In this embodiment, the mobile base is provided perpendicular to the bottom of the support 1. The mobile base 101 and the support 1 connected thereto can be moved by the provision of the handle.

[0033] Example 2

[0034] according to Figure 1-5 As shown, this embodiment proposes a circulating fluidized bed boiler dredging device, comprising a support 1 and a prying rod 2, wherein the support 1 is provided with a prying groove, the prying rod 2 is arranged inside the prying groove, a first dredging rod 3 is movably mounted on one end of the prying rod 2, and a second dredging rod 4 is movably mounted on the upper end of the first dredging rod 3;

[0035] Furthermore, one end of the pry rod 2 is provided with a U-shaped opening 5, the lower end of the first dredging rod 3 is movably installed through the first connecting piece and the U-shaped opening 5, the upper end of the first dredging rod 3 is provided with a U-shaped tube 6, and the inner side of the U-shaped tube 6 is provided with an inner groove, the lower end of the second dredging rod 4 is movably installed through the second connecting piece and the inner groove, and the upper end of the second dredging rod 4 is provided with a round tip 7.

[0036] When the circulating fluidized bed boiler unclogging device described in this embodiment is used, a prying rod 2 is set up on the prying groove of the support 1, and the first unclogging rod 3 and the second unclogging rod 4 are connected to the prying rod 2, which is used to be inserted into the slag discharge pipe 15. When in use, it is only necessary to press the prying rod 2 so that the first unclogging rod 3 and the second unclogging rod 4 can move in the slag discharge pipe 15 to unblock the slag. The lever principle makes it simple and labor-saving to pry the slag, and the blocked slag discharge pipe 15 can be easily unblocked, thereby ensuring the normal slag discharge of the boiler, and the remote operation can avoid burns and scalds, which is safer.

[0037] Furthermore, an anti-scalding heat-insulating sleeve 8 is provided at one end of the outer side of the prying rod 2, and the anti-scalding heat-insulating sleeve 8 is used for hand-holding to avoid being scalded. The prying rod 2 is a ф50×5 steel pipe.

[0038] Furthermore, the first dredging rod 3 and the second dredging rod 4 are used to be inserted into the interior of the slag discharge pipe 15, and the slag discharge pipe 15 is arranged below the boiler furnace 16. The interior of the boiler furnace 16 is provided with an air distribution plate, and the upper and lower parts of the air distribution plate are the bottom material 17 and the wind chamber 18 respectively, and the upper end of the slag discharge pipe 15 is connected to the air distribution plate. The upper end of the slag discharge pipe 15 is connected to the air distribution plate, and the upper part of the air distribution plate during the operation of the boiler is the bottom material 17, and the particle size of the bottom material is generally not more than 8mm. The lower end of the slag discharge pipe 15 is generally about 1500mm from the ground. A prying rod 2 is set on the prying groove of the support 1, and the first dredging rod 3 and the second dredging rod 4 are connected to the prying rod 2, which is used to be inserted into the interior of the slag discharge pipe 15. When in use, it is only necessary to press the prying rod 2 so that the first dredging rod 3 and the second dredging rod 4 can be dredged in the slag discharge pipe 15.

[0039] In this embodiment, the circulating fluidized bed boiler dredging device is provided with a prying rod 2 on the prying groove of the support 1, and the prying rod 2 is connected with the first dredging rod 3 and the second dredging rod 4, which are used to be inserted into the slag discharge pipe 15. When in use, it is only necessary to press the prying rod 2 so that the first dredging rod 3 and the second dredging rod 4 can be moved in the slag discharge pipe 15 to dredge. By using the lever principle, it is simple and labor-saving to poke the slag, and the blocked slag discharge pipe 15 can be easily dredged, thereby ensuring the normal slag discharge of the boiler, and the remote operation can avoid burns and scalds, which is safer. At the same time, the first dredging rod 3 and the U-shaped mouth 5 are movably installed by the first screw 10 and the first nut 11, and the second dredging rod 4 and the first dredging rod 3 are movably installed by the second screw 13 and the second nut 14, which is convenient for adjusting the angle during dredging. The first connecting member and the second connecting member have the same structure. According to needs, multiple groups of first dredging rods 3 can be connected in series to adapt to the dredging needs of different distances.

[0040] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A circulating fluidized bed boiler dredging device, comprising a support (1) and a prying rod (2), characterized in that: The support (1) is provided with a prying groove, the prying rod (2) is arranged inside the prying groove, a first dredging rod (3) is movably mounted on one end of the prying rod (2), and a second dredging rod (4) is movably mounted on the upper end of the first dredging rod (3); One end of the prying rod (2) is provided with a U-shaped opening (5), the lower end of the first dredging rod (3) is movably mounted via a first connecting piece and the U-shaped opening (5), the upper end of the first dredging rod (3) is provided with a U-shaped tube (6), and an inner groove is provided on the inner side of the U-shaped tube (6), the lower end of the second dredging rod (4) is movably mounted via a second connecting piece and the inner groove, and the upper end of the second dredging rod (4) is provided with a round tip (7).

2. The circulating fluidized bed boiler dredging device according to claim 1, characterized in that: One end of the outer side of the prying rod (2) is provided with an anti-scalding heat-insulating sleeve (8), and the anti-scalding heat-insulating sleeve (8) is used for hand-holding.

3. The circulating fluidized bed boiler dredging device according to claim 1, characterized in that: A first opening (9) is provided at the lower end inside the first dredging rod (3); the first connecting member comprises a first screw rod (10) and a first nut (11); the first screw rod (10) is installed on the U-shaped opening (5) and fixed by the first nut (11); and the first screw rod (10) passes through the first opening (9).

4. The circulating fluidized bed boiler dredging device according to claim 3, characterized in that: A second opening (12) is provided at the lower end inside the second dredging rod (4), and the second connecting member comprises a second screw rod (13) and a second nut (14). The second screw rod (13) is installed on the inner groove and fixed by the second nut (14), and the second screw rod (13) passes through the second opening (12).

5. The circulating fluidized bed boiler dredging device according to claim 1, characterized in that: The support (1) is formed by welding a plurality of groups of steel pipes, and the upper end of the first dredging rod (3) and the U-shaped pipe (6) are welded and fixed.

6. The circulating fluidized bed boiler dredging device according to claim 1, characterized in that: The first dredging rod (3) and the second dredging rod (4) are used to be inserted into the interior of a slag discharge pipe (15), and the slag discharge pipe (15) is arranged below the boiler furnace (16).

7. The circulating fluidized bed boiler dredging device according to claim 6, characterized in that: An air distribution plate is provided inside the boiler furnace (16), and the upper and lower parts of the air distribution plate are the bottom material (17) and the air chamber (18), respectively. The upper end of the slag discharge pipe (15) is connected to the air distribution plate.

8. The circulating fluidized bed boiler dredging device according to claim 1, characterized in that: The bottom of the support (1) is assembled on a movable base (101); the bottom of the movable base (101) is provided with four sets of universal wheels; and one end of the movable base (101) is provided with a handle.

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